Technical Field of the Invention

The present invention relates to the application of natural and artificial coating materials used in the floor and wall coverings of buildings with adhesive mortar on a substrate, used for levelling, smoothing and levelling the front surfaces during their application, coating and laying, which does not generate plastic waste before, during and after use, from the user, It is related to the levelling tool with a sheltered structure that is isolated against undesirable elements such as dirt, dust, mortar waste, adhesive waste, stepping on it, bumping, falling from a height, which occurs due to the working environment and tools, which is not affected by such negativities thanks to its sheltered structure, does not lose its function, is used repeatedly, does not damage the coating materials, is long-lasting and robust.

Prior Art

Today, natural and artificial surfacing materials (ceramic tiles, marble, andesite, granite, granite ceramics, etc.) are used to lid wall and floor surfaces. The pavement materials are placed on a surface in pieces (tiles, rectangles, polygonal pieces, etc.), leaving a joint gap with a reasonable distance between each piece of pavement. The joint gap between each part of the coating materials in question must be equal at every point in the entire coating and the top surfaces of each coating part must be in the same plane and at the same level.

Cement-based adhesive mortars are generally used for coating materials on wall and floor surfaces. During the drying and hardening of this adhesive, volumetric shrinkage and shrinkage occurs. The forces due to volumetric shrinkage move the liner from its initial position. Therefore, coating materials may deviate from the plane and a flooring or coating that lacks aesthetics may be formed with a difference in level (height) between each part.

Ceramic tiles are produced by firing the fine powder material consisting of a mixture of clay, quartz, feldspar and some smelters at high temperatures (1100 0C-1200 0C) in tunnel kilns after pressing and shaping under high pressure. As a result of these production processes, the apparent dimensions of ceramic tiles cannot be produced in their exact dimensions, comer joints in exact miter, equal thickness, without hump and flat front surfaces. In these physical measurements, dimensional deviations occur, albeit very slight. This situation causes application difficulties in the laying of ceramic tiles, as well as disrupting the aesthetics of the coating integrity. Therefore, due to dimensional dimension, thickness and hump tolerances, the coatings made with ceramic tiles are not fully levelled, not in the exact plane, but level differences occur at the edge junction points of the ceramic tiles coming side by side in the coating. Aesthetically and technically, when coating materials are laid on floor and wall surfaces, their visible front surfaces should be in the same plane, level and level in order to eliminate tolerance differences.

In the present technique, there are apparatus (tools) used to eliminate level differences in coating materials by passing from one side to the bottom of the coating material and applying pressure to the coating material from the top to eliminate coating material level differences. In the present technique, these apparatus rotate by pressing on the coating with a pressing surface created to apply a pressing force. In this case, friction occurs between the coating and the apparatus and it is very difficult for the user to turn the apparatus. Another problem in the present technique is the situation where undesirable substances such as mortar material (Y), adhesive material (Y), dust, dirt, etc. in the environment due to the working environment enter the apparatus in question and make the apparatus unusable. Working conditions in the application, laying, coating of coating materials on a surface, the working environment is usually dusty, dirty. In addition, due to the nature of the work, it is inevitable that the adhesive mortar (Y) used will contaminate and contact the hands of the user, the tools used, the auxiliary apparatus and the front surfaces of the coating materials (K). Especially in case some tools and auxiliary apparatus come into contact with the adhesive (Y), these tools and apparatus cannot fully fulfill their function and/or cannot be used after a while due to the adhesive (Y).

On the other hand, in the known technique, the edges of some coating materials have sharp and pointed comers. The slightest external impact, knocking and/or compressive force on the sharp and pointed edges of such materials may cause the sharp and pointed comers to break, chip or flake off. The above-mentioned apparatus in the present art can apply compressive force perpendicular to the front surface of two side-by-side coating materials with sharp and sharp comers and simultaneously parallel to the front surface or rotating on the front surface of the coating material, which may cause deformations such as breaking, snapping and/or flaking of the sharp and sharp comers of the coating materials. As examples of such apparatus, the apparatus in the present art and the technical problems in this apparatus are mentioned below

International patent application WO2018107773 and similarly CN209603456, which is in the known state of the art, relates to a spacer with a window for equalizing the front surfaces of ceramic parts and a locking part that passes into the window. In the aforementioned documents, the foot parts of the spacer fit into the bottom of the ceramic pieces and the middle body part fits into the joint gap between the ceramics. A lock piece with a curved surface passes into the window on the central body and the base of the lock piece touches both ceramic front surfaces and equalizes them. In the aforementioned application, the middle body is broken and removed after the procedure. In these applications, the locking piece rubs both on the window and on the coating material at the base. This results in frictional forces that are too great for manpower to cope with by hand pushing alone. It is therefore unavoidable to use additional devices, such as a crimping pliers, to cope with the friction forces. The aforementioned inventions and other similar inventions also include crimping pliers to overcome the frictional force and to enable the invention to fully fulfill its mission. The most important problem with this and similar inventions is this. The frictional force that occurs when the locking part, which has a curved and toothed structure, moves both on the coating material and inside the window, wastes a lot of energy and time for the applicator. In addition, these systems generate a considerable amount of plastic waste after each use. On the other hand, when the aforementioned apparatus is used on coating materials with sharp and pointed comers, as a result of the pressure force they apply, sharp and pointed comers break, snap and flake off.

On the other hand, in addition to the inventions mentioned above, there are other inventions for levelling and smoothing ceramic tile coatings. For example CN204609254 or CA3032979 or CN204299130 or RS1656 or other similar inventions. The basic structures of these inventions are as follows. There is a pole extending out of the cladding between the two cladding materials (K) with male threads at the end. This screw post has a clamping device with a female threaded channel suitable for the thread stmcture. Both apparatus can make linear movement by rotating within each other thanks to the male and female slotted screw. The screw apparatus with female channel rotates on the male channel and presses on the coating materials (K). In this position, a little more rotational force is applied to the female screw apparatus for clamping and levelling. The main problem with this type of apparatus is the following. Since the female slotted apparatus has to contact the top surface of the coating materials (K) and must perform the compaction and levelling process from this point, a lot of frictional force is generated in the application. In this case, the practitioner has to expend a lot of energy. On the other hand, the practitioner has to dismantle the apparatus one by one after the process. Considering that an average of 250-300 pieces of such apparatus are used in a daily application, removing each of them one by one is both very time consuming and causes the practitioner to spend a lot of energy. In addition, these systems are very expensive considering that the male and female screw channels cannot be below certain dimensions in terms of strength. On the other hand, in all of the aforementioned applications WO2018107773, CN209603456, CN204609254, CA3032979, CN204299130 and RS1656, at least one piece of plastic is broken to remove the parts of the invention from the coating after use. Thus, these inventions generate plastic waste after each use. For every 1 square meter of area, these inventions generate an average of 36 grams of plastic waste. According to researches, an average of 14 billion square meters of ceramic tiles are consumed on a global scale in 1 year. Research also shows that at least half of practitioners use at least one of these inventions. Considering that these inventions are used on 7 billion square meters out of 14 billion square meters, 7 billion x 36 grams = 252 thousand tons of plastic is thrown away every year. On the other hand, when the aforementioned apparatuses is used on coating materials with sharp and pointed comers, as a result of the pressure force they apply, sharp and pointed comers break, snap and flake off.

On the other hand, there are some inventions known in the art for levelling the upper surfaces of coating materials (K) without generating plastic waste. The application numbers of some of these are as follows; CN210482938U, CN206829569, CN207092495, CN207999048, CN209339551, CN213174677, CN210263820U, CN211572463U, CN210659162U, CN209907881U, CN204940818U, TWM545162U ve 20170044779. When these 13 inventions are examined, it is very clear that all 13 are similar to each other in terms of basic principles and have similar aspects. For example, in the invention having application no. CN213174677; movement is provided by rotating the part with female screw threads no. 21 on the male screw threads no. 12 at the end of the apparatus no. 5 from the part no. 23. Apparatus 21 makes contact with part 22 on the coating material. Too much frictional force is generated between the surface 22 of the part 21, which is rotated on the top surface of the pavement to level the pavement, and the top surface of the pavement. This tires the user and the levelling process cannot be fully realized in thick and heavy coating materials. In addition, the male threads number 12 and the female threads in the apparatus number 21 are open to the external environment. In other words, it is always open to unwanted elements such as mortar, adhesive, dirt and dust due to the nature of the work during use. This limits the use of the invention, reduces its lifespan, lowers user motivation and ultimately renders it unusable. On the other hand, the subject inventions require an additional, extra compressing apparatus as shown by number 5 in invention CN210482938U. On the other hand, when the aforementioned apparatuses are used on coating materials with sharp and pointed comers, they cause the sharp and pointed comers to break, snap and flake as a result of the pressure force they apply. All of these problems have been reported in other products (CN210482938U, CN206829569, CN207092495, CN207999048, CN209339551,

CN210263820U, CN211572463U, CN210659162U, CN209907881U, CN204940818U, TWM545162U and 20170044779) apply to all twelve inventions.

On the other hand, in the invention numbered WO2021227558, the slot in which the threads 4 and 22 and the part 41 in the part numbered 4 move, the channel is completely open to the external environment. As it is known, due to the nature of the application conditions of coating materials, negative elements such as mortar, adhesive, dirt and dust are intensely present in the environment. Therefore, the invention WO2021227558 is easily affected by these adverse effects and becomes non-functional, useless and short-lived in a short time. Likewise, the invention numbered 2018/09172, which has an application before the TPI, has similar disadvantages with the invention numbered WO2021227558. On the other hand, when the aforementioned apparatus is used on coating materials with sharp and pointed comers, as a result of the pressure force they apply, sharp and pointed comers break, snap and flake off.

Brief Description of the Invention

The purpose of the present invention is to realize a levelling tool which is used for adjusting, correcting and equalizing the front surface levels of the coating materials used especially on the floors and walls of the buildings, and which is not affected by negative elements such as mortar waste, adhesive (Y) waste, dirt, dust, stepping on, hitting, falling from a height, resulting from the user's hand, working environment, tools and equipment used, does not lose its function, does not deteriorate and has a sheltered structure completely isolated from these negativities.

Another purpose of the present invention is to realize a levelling tool with a long-lasting sheltered structure, whose force mechanism, moving parts forming the working mechanism are isolated from the external environment, and which is not affected by adverse conditions such as the user stepping on it, falling into the fresh cement mortar completely or partially, falling into the fresh adhesive completely or partially due to external conditions.

Another object of the present invention is to realize a levelling device (1) having a sheltered stmcture that converts the rotational motion, rotational force, moment force into a bidirectional (up-down) linear motion on the vertical axis. Another object of the present invention is to realize a levelling tool having a protected structure that does not generate plastic waste before, after and during use, can be used repeatedly and is economical.

Another object of the present invention is to provide a levelling tool having a sheltered structure which can be practically assembled and disassembled and which has an ergonomic structure and is easy to use.

Another object of the present invention is to provide a levelling device having a shielded structure capable of generating and producing high tensile-compressive force.

Another object of the present invention is to realize a levelling tool having a sheltered structure that levels and corrects the upper surfaces of the coating material by tolerating and meeting the thickness differences (tolerance) within the standards that exist between each part of the coating materials due to their production.

Another aim of the present invention is to realize a levelling tool with a sheltered structure that minimizes frictional forces within the force generation mechanism and thus enables the user to expend less energy.

Another object of the present invention is to realize a levelling tool having a sheltered structure that does not damage, scratch or damage the front surfaces of the coating materials by not generating forces such as friction, impact, twisting on the front surfaces of the coating materials.

Another object of the present invention is to realize a levelling tool having an ergonomic structure, easy to use and a sheltered structure that can be easily attached and removed from the surface of the coating materials (K) by hand only without the need for additional apparatus. Another object of the present invention is to realize a levelling tool having a protected structure that does not break, snap or flake the sharp and pointed comers of two coating materials with sharp and pointed comers located side by side.

Detailed Description of the Invention

Illustrative embodiment of a levelling instrument having a sheltered stmcture for achieving the object of the present invention;

Figure 1. Front perspective view of the outer core of the inventive levelling tool with sheltered stmcture.

Figure 2. Perspective view of the outer core of the inventive levelling tool with sheltered stmcture from below.

Figure 3. Front view of the outer core of the inventive levelling tool with sheltered stmcture.

Figure 4. Left-right view of the outer core of the inventive levelling tool with sheltered stmcture.

Figure 5. Top view of the outer core of the inventive levelling tool with sheltered stmcture.

Figure 6. Bottom view of the outer core of the inventive levelling tool with sheltered stmcture.

Figure 7. Front perspective view of the inner core of the inventive levelling tool with sheltered stmcture.

Figure 8. Perspective front view of the inner core of the levelling tool of the invention having a sheltered stmcture.

Figure 9. Vertical sectional view of the inner core of the levelling tool of the invention having a sheltered stmcture.

Figure 10. Front perspective view of the lid of the inventive levelling tool having a protected stmcture. Figure 11. Perspective view from the bottom of the lid of the levelling tool having the protected structure of the invention.

Figure 12. A front perspective view of a levelling tool protector having a protected structure according to the invention.

Figure 13. Perspective view from below of a levelling tool protector having a protected structure according to the invention.

Figure 14. Front perspective view of the inventive levelling tool hook having a sheltered structure.

Figure 15. A front perspective view of the printing spring of the levelling tool having the protected structure of the invention.

Figure 16. A front perspective view of a levelling tool fastener having a sheltered structure according to the invention.

Figure 17. Front perspective view of the levelling tool nut having the protected structure of the invention.

Figure 18. Front perspective view of a levelling tool having a sheltered structure according to the invention.

Figure 19. A perspective view from below of a levelling tool having a sheltered structure according to the invention.

Figure 20. Front vertical section perspective view of the levelling tool having the sheltered structure of the invention.

Figure 21. Front vertical cross-sectional view of the levelling tool of the invention having a sheltered structure.

Figure 22. A perspective view of the front vertical section of the force mechanism of the levelling tool having a sheltered structure subject to the invention.

Figure 23. Exploded perspective view of a levelling tool having a sheltered structure according to the invention.

Figure 24. A representative perspective view of the first step of the assembly of the levelling tool having the protected structure of the invention onto the coating.

Figure 25. A representative perspective view of the second step of the assembly of the inventive levelling tool having a protected structure on the coating. Figure 26. Perspective view representing the third step of the assembly of the levelling tool having the protected structure of the invention onto the coating.

Figure 27. A representative perspective view of the fourth step of the assembly of the levelling tool having the protected structure of the invention onto the coating.

Figure 28. A representative perspective view of the levelling tool having a protected structure of the invention, mounted on the coating.

Figure 29. The inventive levelling tool with sheltered structure is a vertical sectional view of the representative perspective view in Figure 28.

Figure 30. Representative front vertical sectional view of the bearing application of the levelling tool having the protected structure of the invention.

Figure 31. The invention is a front perspective cross-sectional representation of the application of a levelling tool bearing having a protected structure.

Figure 32. A front perspective representation of the levelling tool roller having the protected structure of the invention.

Figure 33. The subject of the invention is a top, cross-sectional, bottom perspective representation of a levelling tool bearing having a sheltered structure.

Figure 34. The invention is a perspective representation of a levelling tool with a protected structure from the bottom of the bearing retaining lid.

Figure 35. A perspective representation of the top cross-section of the lid with bearing holder of the levelling tool having the protected structure of the invention.

Figure 36. Exploded perspective view of the lid with bearing holder of the levelling tool of the invention having a protected structure.

Figure 37. The invention is a vertical section perspective representation of the assembly vertical section perspective representation of the lid with bearing holder of the levelling tool having a protected structure.

Figure 38. Cross-sectional perspective view of the application of the levelling tool with a sheltered structure of the invention, one-way grappling hook.

Figure 39. This is the 1st step sectional view of the levelling tool having a sheltered structure subject to the invention with reaction force (Ft) applied.

Figure 40. Perspective view of the 1st step cross-sectional section of the levelling tool having a sheltered structure subject to the invention with reaction force (Ft) applied. Figure 41. Step 2 cross-sectional perspective view of the levelling tool with the sheltered structure of the invention, with reaction force (Ft) applied.

Figure 42. The subject of the invention is a final assembly sectional perspective view of the levelling tool having a sheltered structure on the coating.

Figure 43. Perspective view of the inner core type_l cross-sectional section of the levelling tool having the sheltered structure of the invention.

Figure 44. A perspective view from the bottom of the lid type_l of the levelling tool having the protected structure of the invention.

Figure 45. The invention is a perspective view of the assembly sectional perspective view of the inner core type_l and lid type_l of the levelling tool having a sheltered structure.

Figure 46. A perspective view from below of the inner core rotated in the inner core housing of the inventive levelling tool having a shielded structure.

Figure 47. The inventive levelling tool having a sheltered structure is a representative cross- sectional view of the assembly on the coating, section A detail view.

Figure 48. The inventive levelling tool having a sheltered structure is a representative cross- sectional view of the assembly on the coating, section B detail view.

Figure 49. The inventive levelling tool having a sheltered structure is a representative cross- sectional view of the assembly on the coating, section C detail view.

Figure 50. The inventive levelling tool having a sheltered structure is a representative cross- sectional view of the assembly on the coating, section D detail view.

Figure 51. The subject of the invention is a top view section, a perspective of the top view section and a perspective view of the elliptical structure application of the inner core of the levelling tool having a sheltered structure.

Figure 52. A representative cross-sectional view of the vertical axis line of the levelling tool having the sheltered structure of the invention.

Figure 53. A perspective view of an embodiment of a levelling tool joint wedge having a protected structure.

Figure 54. Perspective view of another embodiment of the levelling tool joint wedge having the protected structure of the invention.

Figure 55. Representative views of the arch application on the outer core printing surface of the levelling tool having the protected structure of the invention. The parts in the figures are individually numbered and the equivalents of these numbers are given below.

1. Levelling tool with sheltered construction

2. Outer core

21. Upper part of the outer core

211. Upper surface of the outer core

212. Outer core bore

213. Outer core ceiling surface

22. Outer core shell

221. Shell front surface

222. Shell side surface

223. Shell tip

23. Inner core slot

231. Inner core slot wall

232. Protective contact surface

24. Outer core printing surface

241. Outer core cavity

242. Belt

3. Inner core

31. Upper part

311. Inner core bore

312. Inner core top surface

313. Nut slot

3131. Nut slot bottom surface

3132. Nut slot top surface

3133. Nut slot wall

32. Bolt channel Inner core wall Hook slot

341. Hook top rest

342. Hook bottom stop

35. Inner core bottom surface

36. Channel bolt threads Lid top surface

411. Bolt head slot

4111. Bolt bore

4112. Slot wall

4113. Wall bottom surface

4114. Bearing holder

41141. Bearing holder first stage

41142. Bearing holder second stage

412. Turning pit

413. Cover ceiling

414. Lid bolt size

4141. Lid bolt threads

4142. Lid bolt tip

42. Lid wall

421. Lug tector

51. Protector upper surface

511. Docking protrusion

512. Hook channel

52. Protective bottom surface

521. Joint wedge ok

61. Hook upper part

611. Upper pressing part 612. Lower pressing part

62. Hook post

63. Hook claw

631. First grappling hook

632. Second grappling hook

7. Printing spring

71. Spring upper part

72. Spring lower part

73. Spring core

8. Fastener (Bolt)

81. Bolt head

811. Head wall

812. Head lower surface

82. Bolt length

821. Bolt threads

822. Bolt end

9. Nut

91. Nut top surface

92. Nut threads

93. Nut wall

94. Nut bottom surface

10. Bearing

101. Bearing top surface

1011. Bearing bore

1012. Bearing inner hub

1013. Bearing outer hub

102. Bearing bottom surface

103. Bearing wall

K. Covering, Cladding material (ceramic tile, marble, andesite, granite, granite ceramic, porcelain ceramic etc.) Y. Bonding mortar (Y)

A . Substrate (screed, plaster, concrete, old coating, etc.)

D. Joint joint gap (D)

Ft. Reaction force on the grappling hook from the substrate.

Fd. The compressive force exerted by the outer core pressure surface on the front surface of the coating material.

Fc. The compressive force exerted by the first grappling hook on the underside, bottom surface of the coating material.

De. Levelling tool (1), outer core (2), outer core hole (212), inner core slot (23), inner core (3), bolt channel (32), inner core hole (311), lid (4), bolt head slot (411), bolt hole (4111), guard (5), hook channel (512), hook (6), hook post (62), grappling hook (63), compression spring (7), spring upper part (71), spring lower part (72), spring core (73), fastener (bolt) (8), bolt head (81), bolt length (82), bolt end (822), nut (9), bearing (10), bearing bore (1011), bearing inner core (1012), bearing outer core (1013) representative vertical axis, representative center, representative axis line according to Figure 52.

Levelling tool (1) used for adjusting, correcting and equalizing the front surface levels of the coating materials (K) used on floors and walls and having a protected structure against unwanted objects (such as dirt, dust, mortar waste, adhesive waste) entering its interior;

- an outer core (2) comprising at least one outer core shell (22) in the form of a body having a volume in its inner part, an outer core pressure surface (24) for pressing the outer core shell (22) against the coating material, an inner core slot (23) in the form of a channel in the inner part of the outer core shell (22), an outer core top (21) located on the outer core shell (22) on the opposite side of the outer core pressure surface (24), and at least one outer core hole (212) in the form of an opening in the outer core top (21), at least one inner core (3) comprising a channel (32) adapted for non-rotational movement into the inner core housing (23) and having a screw groove or a threaded part thereof on the part facing the upper part of the outer core (21), at least one hook (6) connected to the inner core (3) and used to engage the bottom of the liner, at least one lid (4) comprising a lid roof (413) so as to lid the outer core upper portion (21), a lid wall (42) extending from the lid roof (413) onto an outer surface of an outer core shell (22),

At least one fastener (8) used in the connection of the lid (4) and the inner core (3), connected to the lid (4) in such a way as to perform a rotational movement with the lid (4), having a screw step on it and extending over the lid roof (413) so as to pass into the channel (32),

The outer core (2) comprises a lid (4) which prevents unwanted objects from entering into the outer core (3) and is capable of linearly moving the inner core (3) via the connecting element (8) by rotation.

The inventive levelling device (1) having a protected structure comprises an outer core (2) as an outer body, an inner core (3) which can be moved linearly within the outer core (2) without rotation, a hook connected to the inner core (3) and a lid (4) which prevents unwanted objects from entering the outer core (2) and is used to move the inner core (3) through the connecting element (8) by rotation. Said outer core (2) comprises an outer core shell (22) in the form of a body, an outer core printing surface (24) forming the lower part of the outer core shell (22) used for printing on the coating, an outer core upper part (21) located at the upper part of the outer core shell (22) and including an outer core hole (212), and an inner core seat (23) having a shape in which the inner core (3) can move linearly without rotation. The inner core (3) is inserted into the outer core (2) in such a way that it can move linearly in the inner core slot (23) located in the inner part of the outer core (2). The inner core (3) has a hook (6) piece mounted on its lower part and the hook (6) piece can move together with the inner core (3). Said lid (4) is configured to lid the upper part of the outer core (21) with a lid roof (413) and a lid wall (42), and the lid (4) can be connected to the inner core (3) by a fastener (8). The fastener (8), which is or is connected to the lid (4), is connected to the groove (32) on the inner core (3) with a screw thread/screw step.

In the levelling tool (1) having a protected structure, the fastener (8) fixed to the lid (4) rotates around its own axis with the rotation of the lid (4). With the rotation of the fastener (8), the inner core (3) moves linearly (up and down) in the outer core (2) since it cannot perform rotational movement. In this way, with the rotational movement of the lid (4), the inner core (3) moves upward or downward in the inner core housing (23), and the (3) hooked part (6) connected to the inner core (3) moves upward or downward simultaneously with the inner core.

(3) Here, the lid (4) rotates around its own axis on the outer core upper part (21) without moving away from the outer core upper part (21) and in this way, the lid (4) continuously closes the outer core upper part (21) and does not allow unwanted material to pass from the outer core upper part (21) between the fastener (8), the inner core (3) and the lid (4) and the outer core upper part (21). Therefore, the levelling tool (1), which has a sheltered structure, can both move the hook (6) up and down (in such a way that an outer core moves away from and closer to the pressing surface 24) by rotating the lid while the outer core (2) is stationary, and prevent the passage of unwanted material between the lid (4) and the outer core (2) with the sheltered structure of the lid (4).

(4)

In another embodiment of the invention, the fastener (8) is in the form of a bolt length (414) of the lid (4), which is one piece (one piece) with the lid (4) and is in the form of a pin with lid bolt threads (4141) on it, which is in the form of a structure extending from the lid roof (413) into the inner core (3) through the outer core hole (212). In this way, the fastener (8) is in one piece with the lid (4) and there is no need to install or remove the fastener (8) again. The lid bolt length (414) transmits the force from the lid bolt threads (4141) to the lid roof (413) when the lid (4) is rotated in the tightening or opening direction. The lid bolt length (414) of the fastener (8) comprises the lid bolt end (4142) passing through the channel (32) of the inner core (3).

In one embodiment of the invention, the fastener (8) is a bolt which can be mounted on the lid (4) in such a way that it rotates with the lid (4) and is connectable to the inner core (3) channel (32) by means of bolt threads (821) located thereon. In one embodiment of the invention, the bolted fastener (8) comprises a bolt head (81), a pin-shaped bolt length (82) extending from the bolt head (81) and a bolt end (822) at the end of the bolt length (82). Said bolt head (81) comprises a bolt head wall (811) and a head bottom surface (812) at the bottom of the head walls (811).

In one embodiment of the invention, the lid (4) comprises a lid roof (413) on the side facing the outer core top (21) and a lid top surface (41) facing the outer surface thereof, the lid top surface (41) comprising a bolt head slot (411). Said bolt head housing (411) is of a structure and shape such that a bolt head (81) can pass into it and the bolt head (81) does not rotate therein.

In one embodiment of the invention, the bolt head receptacle (411) comprises a slot wall (4112) forming a side surface of the recess from the top surface (41) of the lid (41) towards the roof (413) of the lid, a slot bottom surface (4113) forming the bottom part of the slot wall (4112) and a bolt hole (4111 ) on the slot bottom surface (4113) through which the bolt length (82) of the fastener (bolt) (8) can pass. The bolt head seat (411) ensures that the bolt head (81) is stable, stable and solid on the top surface (41) of the lid (4). The geometrical structure and shape of the bolt head housing (411) is compatible with the bolt head (81). So that the bolt head (81) enters the bolt head seat (411) tightly, engages, contacts. In this way, the fastener (8), which is a bolt, cannot rotate to the right or left in the bolt head housing (411).

In one embodiment of the invention, the valve wall (42) has a protruding lug (421) on its outer surface, which allows the valve to be easily grasped and turned. In another embodiment of the invention, the auricles (421) are evenly or unequally spaced on the valve wall (42) towards the outside of the valve wall (42).

In one embodiment of the invention, the outer surface of the lid wall (42) has a polygonal shape. For example, the outline of the lid (4) has a polygonal structure such as a pentagon or hexagon. In this way, the lid (4) can be easily grasped and turned by the user. If the valve (4) has a polygonal shape, the lugs (421) on the valve wall (42) are not required.

In one embodiment of the invention, the top surface (41) of the closure (4) is provided with at least one recess (412) in the form of a recess, which allows the closure (4) to be quickly tumed/rotated by the user in the tightening direction or in the opening direction.

In one embodiment of the invention, the lid (4) comprises at least one bearing (10) connected to the lid roof (413) and used to minimize the frictional force between the lid roof (413) and the outer core upper surface (211) during rotation of the lid (4) in the tightening direction. As is known, the bearing (10) consists of a bearing top surface (101), a bearing bottom surface (102), a bearing bore (1011), a bearing wall (103), a bearing outer hub (1013), a bearing inner hub (1012). It is well known that the bearing (10) can easily rotate when the bearing inner hub (1012) is stationary and the bearing outer hub (1013) can easily rotate, or vice versa, when the bearing outer hub (1013) is stationary and the bearing inner hub (1012) can easily rotate. In the inventive levelling tool (1) having a protected structure, the bearing inner core (1012) is connected to the lid (4), while the bearing outer core (1013) is in contact with the outer core upper surface (211). In this way, while the bearing outer core (1013) of the bearing (10) remains stationary, the bearing inner core can rotate together with the lid (4) and the friction force between the lid (4) and the outer core upper surface (211) is minimized.

In one embodiment of the invention, the lid (4) comprises at least one bearing retainer (4114) located on the lid roof (413) and extending from the lid roof (413) in the direction of the outer core upper surface (211) and having a structure on which the bearing (10) is to pass. In another embodiment of the invention, the bearing holder (4114) is located on the part where the fastener/bolt (8) extends from the lid roof (413) and has a hole through which the fastener/bolt (8) can pass. In this way, the bearing can be fixed on the outer wall of the bearing holder (4114) while the fastener/bolt (8) passes through the inner wall of the bearing holder (4114).

In another embodiment of the invention, the bearing retainer (4114) comprises a bearing retainer second stage (41142) extending from the lid roof (413) and at least one bearing retainer first stage (41141) forming the end portion of the bearing retainer (4114) and having a diameter smaller than the diameter of the bearing retainer second stage (41142). With the aforementioned two-stage structure, the bearing is fixed on the first stage structure (41141) through the bearing bore (1011) and the bearing is fixed from the upper part of the bearing against the second stage surface (41142). In a further embodiment of the invention, the bearing (10) is fixed on the bearing retainer first stage (41141) or on the bearing retainer (4114) with an interference fit.

In one embodiment of the invention, the outer core top portion (21) comprises an outer core roof surface (213) forming the surface facing the inner core (3) and an outer core roof The outer core includes an outer core top surface (211) forming a surface on the outer side in the opposite direction with respect to the outer core surface (213), and the outer core hole (212) is such that it forms a full opening between the outer core roof surface (213) and the outer core top surface (211). Said lid upper surface (41) overlaps the outer core upper surface (211) and said fastener (8) passes through the outer core bore (212).

In another embodiment of the invention, the outer core upper part (21) is circular, and the lid (4) is circular in shape in accordance with the circular outer core upper part (21) in order to lid this part in a protected manner. In another embodiment of the invention, the upper part (21) of the outer core is cylindrical, and the lid (4) is cylindrical in accordance with the upper part (21) of the outer core in order to lid this part in a protected manner.

In one embodiment of the invention, the outer core shell (22) is in the form of a body having openings at the top and bottom and an inner core housing (23). In one embodiment of the invention, the outer core shell (22) comprises a shell front surface (221), a shell side surface (222) and a shell tip (223). The aforementioned shell side surface (222) extends from the outer core upper part (21) towards the outer core pressure surface (24) in a sloping or flat manner with an increasing cross-sectional area. With this structure, the user can easily hold the outer core shell (22) by hand and does not need an additional handle/grip structure or protrusion. The user decides whether to hold the shell front surfaces (221) or shell side surfaces (222) according to the direction of the joint (D) in the coating. For example, it holds the shell front surfaces (221) when inserting the levelling tool (1) with the protected structure into the horizontal joint (D) cavity in the wall cladding. It holds the shell by the side surfaces (222) when inserting the levelling tool (1) with the protected structure into the vertical joint (D) of the wall cladding.

In one embodiment of the invention, the edges of the outer core

(221) (2) where the opposite shell front surfaces of the outer core (2) meet the outer core printing surface (24) and the edge of the outer core printing surface (24) are curved. The ends of the mutually curvilinear structure of said shell front surfaces (221) merge with the mutually curvilinear shell side surfaces (222) to form mutual shell ends (223). The shell tips (223) are sharp-edged and pointed. The opposing shell front surfaces (221) have a curvilinear surface structure following the outer core pressure surface (24). The distance between the opposite shell ends (223) is greater than the distance between the opposite curvilinear shell front surfaces (221). Therefore, the outer core pressure surface (24) has an elliptical or near elliptical structure and shape. This elliptical and nearelliptical structure extends and emerges from the lateral surfaces of the shell, narrowing evenly towards the upper side,

(222) towards the upper part of the outer core (21). The reciprocal shell side surfaces (222) have a curvilinear surface structure between the reciprocal shell front surfaces (221), the reciprocal shell ends (223) and the outer core top (21). The shell end is located at the junction of the shell side surface (222) with the outer core pressure surface (24) and is used to determine the direction, orientation and position of the grappling hook (63) when it is inside the coating materials (K) and between the joints (D).

(223)

In one embodiment of the invention, the inner core housing (23) is in the form of a guide way in which the inner core (3) moves, and the inner core housing (23) comprises inner core side wall(s) (33) forming the housing. The outer surface of said inner core (3) can move linearly between the inner core housing wall(s) (231).

In one embodiment of the invention, the inner core housing (23) comprises at least four inner core housing walls (231), which are connected to each other at an angle relative to each other at their edges. In another embodiment of the invention, the inner core housing (23) comprises 6 inner core housing walls (231) which are connected to each other at an angle with respect to each other at the edges. In this way, the inner part of the inner core housing (23) is formed in the form of a polygonal structure and the inner core (3) with a similar or identical shape passing through it can move within the inner core housing (23) without rotating. In one embodiment of the invention, the inner core seat (23) comprises a protective contact surface (232) forming the end portion and positioned in the outer core (2) at a distance from the outer core pressure surface (24). Said protective contact surface (232) is preferably parallel to the outer core pressure surface (24) and is located at a distance/height difference from the outer core pressure surface (24).

In one embodiment of the invention, the outer core pressing surface (24) forms the geometrical structure and shape of the lower part of the outer core (2) and the opposite shell ends (223). In another embodiment of the invention, the outer core printing surface (24) has an ellipse or ellipse-like shape. In another embodiment of the invention, the outer core printing surface (24) has a matt, rough surface with reduced slippage. In this way the friction between it and the coating (K) will be higher.

In one embodiment of the invention, at least one outer core cavity 241 is provided in the area between the outer core pressing surface 24 and the outer surface of the inner core housing 23.

In one embodiment of the invention, the hook (6) comprises a hook upper portion (61) comprising at least one upper thrust part (611) and a lower thrust part (612) of parallel or parallel structure extending from a central portion and connected to/on the inner core (3),

A hook post (62) used to extend from the hook top (61) between the covering materials (K),

A grappling hook (63) having a first grappling hook (631) located at the end of the hook post (62) and extending from the hook post (62) to engage the coating material (K) on its lower surface. In another embodiment of the invention, the grappling hook (63) comprises a second grappling hook (632) at the end of the hook post (62) in the opposite direction to the first grappling hook (631).

In another embodiment of the invention, there is provided a first grappling hook (631) and a second grappling hook (632), the end portions of which are in line with the shell ends (223) or are positioned so as to extend at an angle of at least 15 degrees to the shell ends (223). In another embodiment of the levelling tool (1) having a shielded structure, there is provided a first grappling hook (631) and a second grappling hook (632), the ends of which are aligned with only one of the shell ends (223) or are positioned at an angle of at least 15 degrees.

In one embodiment of the invention, the comers of the part where the upper pressure part (611) meets the lower pressure part (612) are chamfered, rounded and/or radiused in order to be more resistant to force.

The outer surface of the inner core (3) of the levelling tool (1), which has a protected structure, has the shape/structure of the inner core slot (23), which does not perform rotational movement around its axis and can move linearly inside it. An example of this is the assembly of the inner core housing (23) with a pentagonal inner wall and the inner core (3) with a pentagonal outer wall, where the pentagonal comers of the inner core (3) and the pentagonal comers of the inner core housing (23) interlock. In the event of a rotational force on the inner core (3) due to the interlocking movement of these comers, it cannot rotate around its own axis and can only move linearly within the inner core housing (23).

In one embodiment of the invention, the inner core (3) comprises at least four inner core walls (33) forming the outer surface of the inner core (3) and connected to each other at an angle relative to each other at the edges. In another embodiment of the invention, the outer surface of the inner core (3) comprises 6 inner core walls (33), which are connected to each other at an angle relative to each other at the edges. In this way, the outer part of the inner core (3) is formed in the form of a polygonal structure and can move without rotating in the inner core housing (23) of similar or identical shape in which it passes.

In one embodiment of the invention, the inner core (3) comprises a top portion (31) comprising an inner core top surface (312) forming a surface facing the lid (4) and an inner core hole (311) located on the inner core top surface (312) and opening onto the channel (32). The fastener (8) passes into the inner core (3) through the inner core hole (311) located on the inner core upper surface (312) and is mounted in the channel (32).

The levelling tool (1) having a shielded structure comprises a channel (32) having a screw groove on the part of the inner core (3) facing the upper part of the outer core (21) or, in another alternative embodiment, a channel (32) comprising a screw grooved part.

In an embodiment of the invention, a channel (32) having a screw groove on it and a fastener (8) have screw pitch and screw groove compatibility, and with the rotational movement of the fastener (8), the channel (32) forces the inner core (3) to move in the direction of rotation, and since the inner core (3) does not rotate in the inner core seat (23) due to its shape, it moves towards the lid (4) or away from the lid (4). The threaded structure in question is a channel bolt thread (36) and is compatible with the screw pitches of the fastener (8) located in the lid bolt length (414) in the lid (4) type l application in Figure 44. The channel bolt thread (36) is used in conjunction with the fastener (8) screw steps to move the inner core

(3) type_l and the hook (6) in Figure 43 upwards in the inner core housing (23) when the lid

(4) is turned in the tightening direction and rotated, and to move the inner core (3) type_l and the hook (6) in Figure 43 downwards in the inner core housing (23) in a linear direction when the lid (4) is turned in the opening direction and rotated. In one embodiment of the invention, the threaded part (9) is a nut (9). The aforementioned nut (9) is positioned in the channel (32) in such a way that it does not rotate around its own axis, and with the rotational movement of the fastener (8) passing through it, it forces the inner core (3) to move in the direction of rotation, and since the inner core (3) does not rotate in the inner core seat (23) due to its shape, it moves towards the lid (4) or away from the lid (4). The aforementioned nut (9) performs the function of pulling, advancing, moving the inner core (3), to which it is connected and with which it is in contact, upwards (towards the lid) in the inner core slot (23) as a result of turning and rotating the lid (4) in the tightening direction, linearly moving along the bolt (82) in the bolt threads (821) in the fastener (8), which is a bolt.

In one embodiment of the invention, the nut (9) comprises a hole in the central part thereof, nut threads (92) on the inner surface forming the hole, and a nut top surface (91) and a nut bottom surface (94), and the side outer surface comprises a nut wall (93).

In one embodiment of the invention, the threaded part (nut) (9) is provided with at least one nut slot (313), which is adapted for securing the threaded part (nut) (9) in the channel (32) without rotation, and which is opened through the inner core wall (33). The aforementioned nut seat (313) allows the nut (9) to be positioned over the side wall of the inner core (3) so as to mate with the hole of the channel (32).

In one embodiment of the invention, the nut seat (313) comprises a nut seat wall (3133) forming the wall of the opening through the inner core wall (33) and a nut seat bottom surface (3131) and a nut seat top surface (3132) for the bottom surface of the opening into which the nut (9) is inserted. In one embodiment of the invention, said nut seat (313) has a polygonal structure in which the nut is fixed without rotation. In this way, the nut (9) is fully inserted into the nut seat (313) and secured without rotation by the nut walls (93). In one embodiment of the invention, the inner core (3) comprises an inner core bottom surface (35) forming the lower part of the inner core (3) remote from the lid (4), and at least one hook slot (34) adapted for mounting the upper part of the hook (61) and at least part of the hook post (62) within the inner core bottom surface (35). The hook housing (34) functions to keep the hook (6) sufficiently tight, to form a bearing for the hook (6), to ensure that the hook (6) remains firm, stable and stable within the inner core (3) and to transfer the pulling force from the hook post (62) to the inner core (3).

In one embodiment of the invention, the hook housing (34) is adapted such that the hook top (61) and the hook post (62) can pass through the inner core wall (33) into the inner core (3) and cannot exit outwardly from the base of the inner core (3).

In one embodiment of the invention, the hook housing (34) comprises a hook upper stop

(341) which is arranged in the hook housing (34) so as to fit between the upper pressure part (611) and the lower pressure part (612) of the hook. In this way, the rotational movement of the upper pressure part (611) and the lower pressure part (612) of the upper part of the hook (61) in the hook slot (34) is prevented/minimized.

In one embodiment of the invention, the hook housing (34) comprises a hook bottom stop

(342) forming the base portion and extending from the base of the hook housing (34) and adapted to contact the lower pressure part (612).

In one embodiment of the invention, a protective top surface (51) for covering a lower surface of the outer core (2) forming the other side of the outer core (2) with respect to the upper part (21), thereby preventing the entry of adverse elements such as mortar waste, adhesive (Y) waste, dirt and dust from the lower surface and protecting and isolating the internal structure of the outer core (2) and facing the inner core slot (23) of the outer core (2), a protective lower surface (52) forming an opposite reverse surface with respect to the protective upper surface (51), and a protector (5) having a hook channel (512) in the form of a hole for the hook post (62) to pass through.

In one embodiment of the invention, the protector (5) is adapted to be removable on the lower surface of the outer core (2) and, when closed, it prevents the entry of undesirable substances such as mortar waste, adhesive (Y) waste, dirt and dust into the inner structure of the outer core (2), while when removed, it allows the pressure spring (7), inner core (3), nut (9) and hook (6) to be easily removed from the outer core (2).

In a further embodiment of the invention, the protector (5) is fixed on the bottom surface of the outer core (2) by means of an interference fit.

In one embodiment of the invention, the protector (5) comprises at least one clamping protrusion (511) which protrudes from the upper surface of the protector (5) and engages with the outer surface of the inner core cavity (23) and thereby engages with the outer core cavity (241), thereby enabling the protector (5) to be held/clamped onto the outer core (2) by tight contact.

In another embodiment of the invention, the upper surfaces of the edge projection are chamfered so that the protector (5) can easily enter the outer core cavity (241) at the first contact.

In one embodiment of the invention, the protective substrate (52) comprises at least one joint wedge (521) projecting from the protective substrate (52) and used for determining the distance between two coating materials (K) and the joint width (D). In one embodiment of the invention, the joint wedge (521) has at least one protrusion extending from the lower surface (52) of the protector (5) in the direction perpendicular to the vertical axis (De), outwardly towards the base (A), in the direction perpendicular to the vertical axis (De), into the hook channel (512) as shown in Figure 53/ A.

In one embodiment of the invention, the joint wedge (521) has at least one protrusion extending outwardly from the lower surface (52) of the protector (5), which is positioned at an angle of at least 15 degrees with the vertical axis (De), downwardly from the vertical axis (De) of the protector (5), outwardly towards the base (A), with the hook channel (512) as shown in Figure 53/B.

In one embodiment of the invention, the joint wedge (521) is positioned at opposite ends of the protector (5) as shown in Figure 54/A, and has at least one protrusion extending downwardly, outwardly, from the lower surface (52) of the protector towards the base (A).

In one embodiment of the invention, the joint wedge (521) has the form of at least one protrusion, as shown in Figure 54/B, positioned between the hook channel (512) of the protector (5) and one end of the protector (5), extending downwardly, outwardly, from the lower surface (52) of the protector (5) towards the base (A).

In one embodiment of the invention, the outer core (2) comprises at least one resilient element/compression spring (7) located in the inner core housing (23) and positioned between the outer core roof surface (213) and the upper part (31) of the inner core (3). The said compression spring (7) continuously exerts a pushing force on the upper part (31) of the inner core (3), thereby ensuring that the lid (4) is continuously pulled towards the upper part (21) of the outer core. In this way, the passage of unwanted substances such as dirt, dust, mortar waste, adhesive waste between the lid (4) and the outer core (2) is prevented more. In one embodiment of the invention, the compression spring (7) is positioned between the inner core top surface (312) and the outer core roof surface (213) and continuously pushes the lid (4) onto the outer core (2).

In one embodiment of the invention, the compression spring (7) is located between the inner core top surface (312) and the outer core roof surface (213) and keeps the bearing bottom surface ( 102) and the outer core top surface (211 ) in constant contact, so that the bolt (8) and the inner core (3) remain permanently protected in the inner core housing (23) and the bearing (10) remains protected between the lid wall (42) and the outer core top surface (211). In this way, the bolted fastener (8), inner core (3) and bearing (10) are isolated and protected from negative elements such as mortar waste, adhesive (Y) waste, dirt and dust.

In one embodiment of the invention, the compression spring (7) comprises a spring upper portion (71) for contacting the outer core ceiling surface (213) of the compression spring (7), a spring lower portion (72) for contacting the inner core upper surface (312), and a spring core (73) forming the portion between the spring upper portion (71) and the spring lower portion (72). When the lid (4) is turned in the tightening direction, it accumulates and stores potential energy on the compression spring (7) which is compressed between the inner core upper surface (312) and the outer core ceiling surface (213) when rotated. When the compressed compression spring (7), which is charged with potential energy, is turned in the direction of opening the lid (4), it transmits the potential energy accumulated on it when it is rotated to the lower part of the spring (72) and the upper part of the spring (71).

In one embodiment of the invention, the hook housing (34) comprises a space between the hook top (61) and the hook top (61) such that the hook top (61) can rotate 0.1 to 5 degrees to the right or left side within the hook housing (34). In this way, whichever of the first grappling hook (631) and the second grappling hook (632) first contacts the lower edge surface of the coating material (K) and the lid (4) is turned or rotated in the tightening direction, the hook (6) makes a small rotational movement to the right or left in the hook slot (34) according to the vertical axis (De). In this way, the hook post (62) and grappling hook (63) are not stressed excessively and unnecessarily and the hook (6) reaches its position in the hook slot (34), the balance position, more easily and smoothly. This feature between the hook (6) and the hook seat (34) in the levelling tool (1) having a sheltered structure, in particular, brings the front surfaces of two adjacent coating materials with a level difference between their front surfaces and the thickness difference of up to ± 1 mm between the thicknesses of the two adjacent coating materials (K) to the same level, to the same plane, by tolerating, eliminating, compensating.

In one embodiment of the invention, there are at least two opposite arches (242) in the form of grooves, slits, notches, recesses from the center or very close to the center of the outer core printing surface (24) towards the outer core shell (22). The arch (242) positioned on the outer core pressure surface (24) of the levelling tool (1) having a protected structure, and the features positioned side by side with a joint gap (width) between them prevent the sharp and pointed comers of the two coating materials (K) with sharp and pointed edges from breaking, snapping and flaking against the pressure force applied by the outer core pressure surface (24).

Coating Material (K);

It covers natural and artificial coating materials (K) such as ceramic tiles, porcelain ceramic tiles, granite ceramic tiles, tiles, marble, granite, andesite.

Bonding Mortar (Y);

It covers cement-based, dispersion-based adhesive mortars (Y) of all classes and types used for bonding coating materials (K) to a surface, as well as cement-based mortars prepared in plastic, dry and flowable consistencies by adding sand, cement, water and additives where necessary.

Substrate (A); It covers all kinds of cement-based plasters, gypsum-based plasters, cement-based flat or sloped screeds, gypsum-based plates, cement-based plates, etc. where coating materials (K) are coated, laid.

Joint Space (D);

A reasonably wide gap or distance between the edges of adjacent pavement materials (K),

Ft. Reaction force on the grappling hook from the substrate (A)

Fd. The compressive force exerted by the outer core pressure surface on the front surface of the coating material.

Fc. The compressive force exerted by the grappling hook on the underside, bottom surface of the coating material

De. Levelling tool (1), outer core (2), outer core hole (212), inner core slot (23), inner core (3), bolt channel (32), inner core hole (311), lid (4), bolt head slot (411), bolt hole (4111), guard (5), hook channel (512), hook (6), hook post (62), grappling hook (63), compression spring (7), spring upper part (71), spring lower part (72), spring core (73), fastener (bolt) (8), bolt head (81), bolt length (82), bolt end (822), nut (9), bearing (10), bearing bore (1011), bearing inner core (1012), bearing outer core (1013) representative vertical axis, representative center, representative axis line according to Figure 52.

The operation of the levelling tool with a sheltered structure, the way it is mounted on the coating is as follows Coating materials (K) are usually applied and coated on horizontal or vertical substrates (A) (plaster, screed, etc.) with cement-based adhesive mortar (Y). As a general principle; the adhesive mortar (Y) is spread on the substrate (A). Then each piece of the coating material (K) is placed on the bonding mortar (Y) with a certain joint (D) distance between them and the plane is adjusted. The front surfaces of the coating materials (K) placed side by side on the adhesive mortar (Y) with a joint width (D) distance between them cannot be in exactly the same plane with each other due to the fact that the substrate (A) is not completely flat, not in a complete plane, the adhesive mortar (Y) cannot be applied on the substrate (A) with equal thickness and there are thickness differences between each part of the coating material (K) due to their production, and there are concave and convex states between each part of the coating materials (K). The general principle described in this paragraph is illustrated in Figure 24. Accordingly, in Figure 24, adhesive mortar (Y) was applied, spread and placed on the substrate (A) and two coating materials (K) were placed side by side with a distance of joint width (D) between them.

As shown in Figure 24, the levelling tool (1) is held with one hand through the lid (4) and partly through the outer core (2) so that the two opposite shell ends (223) and the first grappling hook (631) and the second grappling hook (632) on the outer core (2) are in the same direction, in line with the length of the joint (D). Again, as shown in Figure 24, the levelling tool (1), which has a sheltered structure in the direction of the vertical arrow as shown in Figure 25, is inserted between the joints (D) of the two coating materials (K) until the grappling hook (63) touches the base (A). The situation in Figure 25 is as follows; the two opposite shell ends (223), the first grappling hook (631) and the second grappling hook (632) are in the same direction, in the same direction, as the length of the joint (D). The grappling hook (63) is in full contact with the base (A). The levelling tool(l) with a sheltered structure is perpendicular or close to perpendicular to the front surfaces of the coating materials(K) and is held by hand. There is a gap between the outer core printing surface (24) and the front surface of the two coating materials (K), there is no contact yet. The compression spring (7) located between the inner core top surface (312) and the outer core roof surface (213) is in a free state, there is no force, no pressure on it yet. The lid roof (413) is in contact with the outer core top surface (211). In this state, the protected levelling tool (1) is rotated at least 15 degrees to the right or left side around its vertical axis (De) by grasping the front surfaces (221) or the side surfaces (222) of the reciprocal shells in the outer core (2) as shown in Figure 26. The situation in Figure 26 is as follows; there is an angle of at least 15 degrees between the two opposite shell ends (223), the first grappling hook (631) and the second grappling hook (632) and the length of the joint (D). The grappling hook (63) is in full contact with the base (A). The levelling tool(l) with a sheltered structure is perpendicular or close to perpendicular to the front surfaces of the coating materials(K) and is held by hand. There is a gap between the outer core printing surface (24) and the front surface of the two coating materials (K), there is no contact yet. The compression spring (7) located between the inner core upper surface (312) and the outer core ceiling surface (213) is in a free state, there is no force or pressure on it yet. The lid roof (413) is in contact with the outer core top surface (211).

With the shielded levelling tool (1) in this state, the outer core (2) is grasped by the opposite shell front surfaces (221) or the opposite shell side surfaces (222) as shown in Figure 27 and pressed against the front surfaces of the coating materials (K) in the direction of the vertical arrow in Figure 27. As a result of this pressure, the following happens simultaneously; the hook (63) pushes the inner core (3) located in the inner core slot (23) upwards towards the compression spring (7) with the reaction force (Ft) it receives from the contact pad (A) as shown in Figure 39 and Figure 40. Again, as seen in Figure 39 and Figure 40, the compression spring (7) located between the inner core upper surface (312) and the outer core ceiling surface (213) is compressed against the force coming from the inner core (3) and its length, spring core (73) shortens and stores the potential energy on it. The lid (4), which is connected to the inner core (3) by means of the fastener (bolt) (8), as a result of the force coming from the inner core (3) through the fastener (bolt) (8), moves upwards from the outer core (2) in the direction of the force and breaks its contact with the outer core upper surface (211), as clearly seen in Figure 39 and Figure 40. While the levelling tool (1) with protected structure is in this state, as shown in Figure 27, the lid (4) is turned and rotated with the other hand in the tightening direction through the lugs (421) or the turning dimples (412). As can be seen in Figure 39 and Figure 40, since the lid roof (413) and the outer core top surface (211) are not yet in contact, the first rotation takes place quickly. As can be clearly seen in Figure 41, as a result of this first rapid turning, rotation, the fastener (bolt)(8) enters the bolt channel (32) through the nut (9) and the fastener (bolt)(8) pulls the lid (4) to which it is fixedly attached (Figure 41) towards the outer core upper surface (211), brings it closer and makes contact with it. At this time, as shown in Figure 41, the grappling hook (63) is still in contact with the carriage (A) and the first grappling hook (631) and the second grappling hook (632) are not yet in contact with the lower parts of the coating materials (K). At the end of the rotation, the lid roof (413) and the outer core top surface (211) come into contact. After this point, as shown in Figure 42, the lid (4) continues to be turned and rotated in the tightening direction by the lugs (421) until the first grappling hook (631) and the second grappling hook (632) touch the lower parts of the coating materials (K) and the upper surfaces of the coating materials (K) reach the same level. Finally, the coating materials (K) are compressed and pressed between the outer core pressing surface (24) from the top and the grappling hook (63) from the bottom, so that their upper surfaces are at the same level, in the same plane.

The final situation in Figure 42 is as follows. When the lid (4) is turned in the tightening direction, the fastener (bolt)(8), which is fixed inside the lid (4) when rotated, also rotates in the same direction as the lid (4). The fastener (bolt) (8) moves into the bolt groove (32) in the nut threads (92) of the nut (9), which is permanently fixed in the nut housing (313). Simultaneously, the clamped, fixed nut (9), which is connected to the inner core (3) through the nut seat (313), moves upwards on the bolt threads (821) together with the inner core (3) and the hook (6) towards the outer core roof surface (213). In other words, when the lid (4) is rotated in the tightening direction while the lid roof (413) and the outer core upper part (21) are in contact, the fastener (bolt) (8) also rotates in the same direction as the lid (4) when rotated. At this time, the nut (9), which is clamped and in contact with the bolt threads (821), moves linearly upwards along the bolt length (82) towards the outer core roof surface (213). The nut (9) cannot rotate in the nut seat (313) of the inner core (3), it cannot exit in a vertical direction. Therefore, in the direction of the said linear movement of the nut (9), the inner core (3) and the hook (6) connected to the inner core (3), which is in contact and cannot be dislodged in the vertical direction, also make linear movements in the same direction and amount as the nut (9). In the meantime, the compression spring (7) between the inner core top surface (312) and the outer core roof surface (213) is compressed a little more in the direction of said movement. At this point, when the lid (4) and the fastener (bolt) (8) within the lid (4), which rotates in the same direction with it, is turned in the tightening direction, when rotated, it moves the inner core (3) and the nut (9) and hook (6) within the inner core (3) in the linear direction upwards in the inner core housing (23) towards the pressure spring (7). The geometrical structure of the inner core slot (23) and the inner core (3), the horizontal cross-sectional outline structure and shape play an important role in the formation of this movement. As clearly seen in Figure 2, Figure 6, Figure 7 and Figure 9, the horizontal cross- sectional outline of the inner core housing (23) and the horizontal cross-sectional outline of the inner core (3) have a structure that cannot rotate, turn or translate within each other, but can move linearly inside each other. In order to realize this situation, the geometric structure of the inner core (3) horizontal section outline and the geometric structure of the inner core slot (23) horizontal section outline have complex shapes and structures other than the known geometric shapes such as quadrilateral, pentagon, hexagon, decagon, ellipse, trapezoid, parallelepiped, rectangle, and at least 4 lines and curves of different lengths and equal lengths with a certain angle between them. For example, in Figure 51, Figure 51/1, Figure 51/2 and Figure 51/3, the inner core horizontal section outer line is ellipse, ellipse-like.

At this point, the main thing is that the subordinate inner core (3) moves in and out of the inner core housing (23) easily,

- The inner core (3) moves linearly downwards in the inner core seat (23), towards the protector (5) and upwards, towards the outer core roof surface (213), - The inner core (3) cannot rotate, pivot or turn in the inner core housing (23) in the direction of the lid (4), in the direction of the fastener (bolt) (8) or around its vertical axis (De).

In order to realize this essential, subordinate condition, the horizontal cross-sectional outline of the inner core slot (23) and the horizontal cross-sectional outline of the inner core (3) may be one of the above-mentioned known geometric shapes or one of the unknown complex shapes, or in order to realize the essential, subordinate condition, the horizontal cross- sectional outline of the inner core slot (23) and the horizontal cross-sectional outline of the inner core (3) may be one of the above-mentioned known geometric shapes or one of the unknown complex shapes. For example, the horizontal cross-sectional outline of the inner core housing (23) may be hexagonal, and the horizontal cross-sectional outline of the inner core (3) may be quadrilateral, square, etc. to realize the essential, subordinate condition.

This structure prevents the inner core (3) from rotating in the same direction as the fastener (bolt) (8) and the lid (4) in the inner core housing (23) when the lid (4) is turned or rotated in the tightening or opening direction, so that the inner core (3) makes only linear movement upwards and downwards in the inner core housing (23). Therefore, the outline geometry of these two structures in the horizontal cross-section cannot be round, circular or circular.

The above paragraphs describe the installation of one sheltered levelling tool (1) on the coating (K). The same work and process steps are repeated and applied to the adjacent coating materials (K) in the entire coating (K). After a period of time (usually 6-24 hours after the adhesive mortar (Y) has reached sufficient strength) after the installation of the protected levelling tool (1) on the coating material (K), it is removed from the coating (K). The removal of the shielded levelling tool (1) from the coating (K) is carried out in the opposite direction to the assembly operations described above. That is, the opposite shell is held by hand on the front surfaces (221) or on the side surfaces (222) of the opposite shell. With the other hand, turn the lid (4) in the opposite direction to the tightening direction. At this point, as shown in Figure 39 and Figure 40, the contact of the lid roof (413) with the outer core upper surface (211) is broken and the lid (4) moves away from the outer core (2) upwards. The hand held on the opposite shell front surfaces (221) or on the opposite shell side surfaces (222) is released. Thus, the potential energy accumulated on the compression spring (7) between the inner core upper surface (312) and the outer core ceiling surface (213) pushes the inner core (3) downwards towards the protector (5). Simultaneously, the lid (4), which is connected to the nut (9) by means of the fastener (bolt) (8), moves in the same direction and in the same amount until the lid roof (413) contacts the outer core upper surface (211). In this way, the contact of the outer core printing surface (24) with the top surface of the coating materials (K) is cut off as shown in Figure 26. Then, holding the front surfaces (221) or the side surfaces (222) of the opposite shells, the ends (223) of the opposite shells are turned and rotated around the vertical axis (De) of the levelling tool (1) with a protected structure in the same direction and in the same direction with the length of the joint (D). Thus, the levelling tool (1), which has a sheltered structure, is in the position shown in Figure 25. After this point, the levelling tool (1) with a protected structure is pulled upwards in the direction perpendicular to the front surfaces of the coating materials (K) and removed from the joint (D), gap, over the coating materials (K).

Basic working principle of the levelling tool with sheltered construction

The basic working principle of the levelling tool(l) with sheltered structure is best seen in the vertical sections in Figure 47, Figure 48, Figure 49 and Figure 50 and the section details A, B, C and D of these vertical sections respectively. Accordingly;

- In the section A detail in Figure 47, there are two side-by-side cladding materials (K) with adhesive (Y) on the substrate (A) and two side-by-side cladding materials (K) on the adhesive (Y) with a distance between them equal to the width of the joint (D) and a level difference between their upper surfaces. In other words, according to Figure 47, the coating material (K) on the left side is higher than the coating material (K) on the right side, higher than the top and further away from the substrate (A) (which is often the case in real applications). The levelling tool (1) with a sheltered structure is in contact with the substrate (A) according to Figure 47; the hook (63) is in contact with the substrate (A) through the joint (D). As a result of hand pressure on the opposing shell side surfaces (222) on the outer core shell (22) in the direction of the arrows pointing towards the coating materials in Figure 47, the grappling hook (63) contacts the pad (A) and a reaction force (Ft) is generated from the pad (A) to the grappling hook (63). This reaction force (Ft) is transmitted via the hook post (62) to the upper part of the hook (61) and then to the inner core (3). As a result, the inner core (3) moves linearly upwards in the inner core seat (23) towards the compression spring (7). The compression spring (7) located between the inner core upper surface (312) and the outer core ceiling surface (213) is compressed as a result of the reaction force (Ft) coming upwards from the inner core (3), the length of the spring core (73) is shortened and potential energy accumulates on it. Simultaneously, the lid (4), which is connected to the nut (9) by means of the fastener (bolt) (8) and to the inner core by means of the nut (9), moves upwards in the direction of the reaction force (Ft), in the same direction as the inner core (3) and in the direction of the arrows pointing upwards from the top of the outer core (21) towards the lid roof (413) in Figure 47.

(3) Again, as can be clearly seen in the detail of section A in Figure 47, the first grappling hook (631) and the second grappling hook (632) in the grappling hook (63) do not yet touch the lower parts of the coating materials (K). According to Figure 47, the outer core pressure surface (24) on the outer core (2) is in contact with the front surface of the coating material (K) on the left side and not yet in contact with the front surface of the coating material (K) on the right side.

- With the levelling tool (1) of protected construction in the position shown in Figure 47, the lid

(4) As shown in Figure 48, when it is turned in the tightening direction, when it is rotated, the bolt threads (821) move on the nut threads (92) and the fastener (bolt)(8) enters the bolt groove (32), while the fastener (bolt)(8) simultaneously brings the lid (4) to which it is connected and with which it is in contact closer to the outer core top (21) and the outer core top surface (211) and the lid roof (413) come into contact. It is quick and convenient to turn and rotate the lid (4) until the lid roof (413) and the outer core top surface (211) are in contact. The final situation up to this point is as follows: As can be clearly seen in the detail of section B in Figure 48, the first grappling hook (631) and the second grappling hook (632) in the grappling hook (63) are not yet in contact with the lower parts of the coating materials (K). According to Figure 48, the outer core pressure surface (24) on the outer core (2) is in contact with the front surface of the coating material (K) on the left side and not yet in contact with the front surface of the coating material (K) on the right side. The outer core (2) is pressed by hand from the shell side surfaces (222) towards the front surfaces of the coating materials (K), the reaction force (Ft) coming from the base (A) pushes the hook (6) and the inner core (3) together with the hook (6) upwards in the inner core slot (23) towards the pressure spring (7). Finally, if the compression spring (7) is in a compressed state, i.e. the spring core (73) is shortened in length, potential energy is charged on it.

- When the levelling tool (1), which has a protected structure, is in the position shown in Figure 48, when the lid (4) continues to be turned and rotated in the tightening direction as shown in Figure 49, the bolt threads (821) continue to move linearly on the nut threads (92) towards the bolt groove (32) and the hook (6) and the inner core (3) with the hook (6) continue to move upwards in the inner core housing (23) towards the pressure spring (7). At the end of this movement, the first grappling hook (631) touches the bottom, lower surface of the coating material (K) on the right side, which is closer to the base (A), as clearly shown in detail C in Figure 49, while the second grappling hook (632) does not yet touch the bottom, lower surface of the coating material (K) on the left side. On the other hand, in detail C in Figure 49, the front surface of the cladding material (K) on the right side is not yet in contact with the outer core pressure surface (24), while the front surface of the cladding material (K) on the left side is in contact with the outer core pressure surface (24). In addition, the contact between the grappling hook (63) and the base (A) is broken, so the reaction force (Ft) from the base (A) is eliminated.

- When the levelling tool (1), which has a protected structure, is in the position shown in Figure 49, when the lid (4) continues to be turned and rotated in the tightening direction as shown in Figure 50, the bolt threads (821) continue to move linearly on the nut threads (92) towards the bolt groove (32) and the hook (6) and the inner core (3) with the hook (6) continue to move upwards in the inner core housing (23) towards the pressure spring (7). As a result, simultaneously, as clearly seen in detail C in Figure 49, the grappling hook (63) exerts upward pressure and force (Fc) on the right-hand side facing material (K), which is in contact with the first grappling hook (631), in the direction of the lid (4), while the outer core pressure surface (24) exerts downward pressure and force (Fd) on the front surface of the left-hand side facing material (K), towards the base (A). Finally, the upward pressure force (Fc) exerted by the grappling hook (63) on the bottom surface of the right-hand side facing material (K) and the downward pressure force (Fd) exerted by the outer core pressure surface (24) on the front surface of the left-hand side facing material (K) compress both right and left-hand side facing materials (K) between the grappling hook (63) and the outer core pressure surface (24), as clearly seen in detail D in Figure 50, By pressing it, it ensures and realizes the levelling of its front surfaces, bringing them to the same level. While the shielded levelling tool (1) is performing its function in Figure 49 and Figure 50, the following situation between the hook (6), inner core (3) and outer core (2) is important. In Figure 49, when the lid (4) is turned or rotated in the tightening direction, the coating material (K) on the right side moves upwards from the substrate (A) towards the lid (4), while the coating material (K) on the left side moves downwards towards the base (A). In the meantime, the force (Fc) exerted by the first grappling hook (631) upwards on the right-hand coating material (K) and the force (Fd) exerted by the outer core pressure surface (24) downwards on the left-hand coating material (K) rotate the hook (6) slightly to the left in the vertical axis (De) in the hook slot (34). As a result, the perpendicularity of the hook post (62) to the front surface of the pavement (K) is slightly distorted and it stops on the left side at a small angle with the front surface of the pavement (K). This continues until the second hook (632) is in contact with the lower edge surface of the left-hand side closing material (K). When the second grappling hook (632) contacts the lower edge surface of the coating material (K) on the left-hand side and the lid (4) is still being rotated and turned, the hook (6) returns to its initial position in the hook slot (34) and the hook post (62) also returns to a position perpendicular to the front surface of the coating materials (K). As can be clearly seen in Figure 47, Figure 48, Figure 49 and Figure 50 and the details thereof, there is some space between the upper parts and edge ends of the upper pressure part (611) and lower pressure part (612) of the hook (6) and the hook housing (34). In this way, whichever of the first grappling hook (631) and the second grappling hook (632) first comes into contact with the lower edge surface of the coating material (K) and the lid (4) is turned in the tightening direction, the hook (6) makes a small rotational movement in the hook slot (34) to the right or left by 0. 1 to 5 degrees relative to the vertical axis (De). In this way, the hook post (62) and grappling hook (63) are not stressed excessively and unnecessarily and the hook (6) reaches its position in the hook slot (34), the balance position, more easily and smoothly. This feature between the hook (6) and the hook seat (34) in the levelling tool (1) having a shielded structure, in particular, brings the front surfaces of two coating materials with a level difference between the front surfaces of the two adjacent coating materials (K) and the thickness difference of up to ± 1 mm between the thicknesses of the two adjacent coating materials (K) to the same level, to the same plane by compensating, eliminating, compensating.

Installation of the levelling tool with sheltered construction

The levelling tool(l) with a sheltered structure consists of a plurality of compatible parts. Figure 23 shows an exploded image of the levelling tool (1) with a sheltered structure. Accordingly, the assembly of the levelling tool (1) with a sheltered structure consists of the following steps respectively; - The spring upper part (71) of the compression spring (7) is inserted into the inner core slot (23) in the outer core (2) in the direction of the arrow in Figure 23 so that it contacts the outer core roof surface (213).

- The nut (9) is inserted into the nut seat (313) in the inner core (3) in the direction of the arrow in Figure 23. At this point, the nut bottom surface (94) is in full and tight contact with the nut seat bottom surface (3131), the nut top surface (91) with the nut seat top surface (3132) and the nut walls (93) with the nut seat walls (3133).

- The hook (6) is inserted into the hook slot (34) in the inner core (3) in the direction of the arrow in Figure 23. At this point, the upper pressure piece (611) on the hook (6) is in full contact with the hook upper stop (341) in the hook slot (34), and the lower pressure piece (612) on the hook (6) is in full contact with the hook lower stop (342) in the hook slot (34) (Figure 20, Figure 21, Figure 22). At the same time, the hook post (62) is also in contact with the hook lower support. After this assembly, the hook post (62) extends outwards, downwards from the inner core bottom surface (35) (Figure 20, Figure 21, Figure 22).

- The inner core (3) to which the nut (9) and hook (6) are assembled and joined in the preceding paragraph is inserted into the inner core slot (23) in the outer core (2) in the direction of the arrow in Figure 23. At this point, the upper surface of the inner core (312) is in contact with the lower part of the spring (72) of the compression spring (7) in the inner core housing (23). The inner core bottom surface (35) is parallel and in the same plane, level and aligned with the protective contact surface (232).

- The protector (5) is inserted towards the outer core thrust surface (24) in the direction of the arrow in Figure 23. At this point, by passing the grappling hook (63) through the hook channel (512) in the protector (5), the interlocking protrusions (511) located on the upper surface (51) of the protector (51) enter, pass, and interlock tightly into the outer core cavity (241) located on the outer core (2). The clamping process ends when the protective upper surface (51) and the protective contact surface and the inner core lower surface (35) (232) touch each other. In this way, the protector (5) is clamped, fitted and tightly interlocked with the outer core cavity (241) of the outer core (2). The protective bottom surface (52) and the outer core pressure surface (24) are in the same plane with each other. They therefore exert pressure on the coating material (K) together. In another embodiment of the levelling tool(l) having a shielded structure, the protective bottom surface (52) is slightly further towards the protective contact surface (232) than the outer core pressure surface (24). In this application, only the outer core pressing surface (24) contacts and presses on the front surface of the coating materials (K).

- The fastener (8), which is a bolt, is passed through the bolt hole (4111) in the lid (4) in the direction of the bolt tip (822) in the direction of the arrow in Figure 23. At this point, the head bottom surface (812) on the bolt head (81) and the seat bottom surface (4113) on the bolt head seat (411) are in full and tight contact. At the same time, the head wall (811) of the bolt head and the seat wall (4112) of the bolt head seat (411) are in full and tight contact. The bolt head (81) of the bolt (8) and the bolt head (411) located on the upper surface of the lid (41) are in perfect harmony in terms of geometrical structure. The bolt head (81) is fully and tightly clamped to the bolt head seat (411). In another embodiment of the levelling tool (1) having a protected structure, the bolt head (81) in the bolt (8) in question is completely embedded in the upper surface (41) of the lid (4), is inside it, is an inseparable, nonremovable part of the lid (4). In another application, the bolt (8) and the lid (4) are an inseparable whole made of the same material (Figure 44, Figure 45).

- The fastener (bolt)(8) described in the preceding paragraph and the assembled, assembled version of the lid (4) are combined with the outer core (2) in the direction of the arrow under the lid (4) in Figure 23. This is performed by inserting the bolt tip (822) through the outer core hole (212) at the top of the outer core (21) into the inner core slot (23) until it contacts the nut (9). When the bolt end (822) comes into contact with the nut (9), the lid (4) is turned slightly in the tightening direction. This completes the assembly of the levelling tool (1), which has a sheltered structure as shown in Figure 20 and Figure 21. The condition of the levelling tool (1), which has a sheltered structure in Figure 20 and Figure 21, in this assembled, assembled state is briefly as follows; Bolt threads (821) and nut threads (92) are in contact with each other due to their structure. The lower part of the spring (72) of the compression spring (7) and the inner core upper surface (312), the upper part of the spring (71) of the compression spring (7) and the outer core ceiling surface (213) are in contact with each other and the spring core (73) has its actual length. In other words, the compression spring (7) is not under pressure between the outer core ceiling surface (213) and the inner core upper surface (312), but in a free state and there is no potential energy on it. The lid roof (413) is in contact with the outer core top surface (211). The inner core bottom surface (35) is in contact with the protective top surface (51). The protector (5) is clamped and inserted into the outer core cavity (241) and is in contact with the protective contact surface (232) (Figure 19). The hook post (62) extends outward from its protective lower surface (52) to its maximum length. When the levelling tool (1) with the protected structure is in this state, as shown in Figure 22, when the lid (4) is turned in the tightening direction, as shown in Figure 22, when rotated, the bolt threads (821) move the bolt length (82) on the nut threads (92) towards the bolt groove (32). Simultaneously, the inner core (3) and the hook (6) within the inner core (3) start to move upwards in the inner core housing towards the compression spring (7) and as a result of this movement, the compression spring (7) starts to be compressed between the inner core upper surface (312) and the outer core ceiling surface (213), the spring core (73) starts to shorten and potential energy accumulates on the spring. This is best illustrated in Figure 22.

As a result, the externally visible parts of the levelling tool (1) with the sheltered structure shown in Figure 18, Figure 19, Figure 20 and Figure 21 in this assembled, assembled state are the lid (4), outer core (2), hook (6), part of the hook post (62), part of the bolt head (81) and the protector (5). The invisible, unseen parts are the inner core (3), hook top (61), nut (9), bolt length (82), bolt threads (821), bolt end (822), part of the bolt head (81) and the compression spring (7). Therefore, all the parts of the levelling tool (1) that form, actuate and functionalize the force mechanism are located in the inner core housing (23) of the outer core (2) in a protected, isolated manner. In this way, these parts of the levelling tool(l) with a sheltered structure are completely isolated from the working environment, tools and equipment and all the negative effects that may arise from the user, such as mortar waste, adhesive (Y) waste, dirt, dust, which may disrupt, restrict, interrupt the working mechanism, force transmission mechanism and functionality.

Disassembly and dismantling of the levelling tool with a protected structure is done as follows;

The disassembly and dismantling stages of the levelling tool(l), which has a protected structure, include steps in the opposite direction to the assembly stages. The sequence is as follows;

- Turn the lid (4) in the opening direction until the fastener (bolt) (8) is disengaged from the nut (9). After the nut (9) and the fastener (bolt)(8) are separated from each other, the lid (4) is pulled slightly upwards from the outer core upper surface (211) until the bolt end (822) does not come out of the inner core slot (23). The lid (4) is held sideways, slightly angled with respect to the outer core top surface (211) and the bolt end (822) is brought into contact with the inner core top surface (312). While the lid (4) is in this position, holding the outer core shell (22) with the other hand, press the lid (4) towards the inner core slot (23) a little hard and apply force. This slightly hard pressing force applied to the upper surface 312 of the inner core (3) is transmitted to the protector (5) via the inner core (3). This force pushes the protector (5) outwards in the direction of the grappling hook (63), so that the protector (5) comes out of the outer core cavity (241). After this operation, the grappling hook (63) is passed through the hook channel (512) of the protector (5) and the protector (5) is separated from the levelling tool (1) which is completely protected.

- The guard (5) can also be removed as follows: turn the lid (4) in the opening direction until the fastener (bolt) (8) is disengaged from the nut (9). The lid and the fastener (bolt)(8) are removed from the fully protected levelling tool (1). (4) It is held by the front surface (221) or the side surface (222) of the reciprocating shell. Holding the grappling hook (63) and the hook pole (62) with the other hand, the hook (6) is pulled outwards from the sheltered levelling tool (1) with some force. As a result of this pulling, the lower surface of the inner core (35) exerts pressure on the upper surface of the protector (51) and the protector is separated and removed from the outer core shell (22) and the outer core cavity (241).

(5) At this point, both hands move parallel and opposite to each other, exerting force.

- Then the inner core (3) and the nut (9) and the hook (23) connected to the inner core (3), which are in contact, are removed from the inner core housing (23).

- Finally, the released compression spring (7) is removed from the inner core seat (23).

- The nut (9) connected to the inner core (3), which is in contact, is removed from the nut housing (313) by pushing it, preferably with the tip of a screwdriver, from the inner core hole (311) towards the nut housing (313) exit, in the opposite direction to the entry direction.

- The grappling hook (63) is removed from the hook slot (34) by grasping the hook pole (62) and pushing it in the opposite direction to the direction of the entrance of the hook slot (34).

- The fastener (bolt)(8) is separated from the lid (4) by pushing the bolt end (822) towards the lid roof (413) very hard or preferably by striking the bolt end (822) with a hard object such as a hammer in the direction of the lid roof (413).

- In one embodiment of the levelling tool (1) having a protected structure, the fastener (8), which is a bolt, is embedded in the lid (4), is fixed, is a whole, is manufactured together in the same type, in this embodiment, the fastener (bolt) (8) cannot be separated from the lid (4), cannot be disassembled. In another application of the levelling tool (1) having a protected structure, as shown in Figure 30 and Figure 31, the bearing (10) shown in Figure 32 and Figure 33 is used to minimize the frictional force between the lid roof (413) and the outer core upper surface (211) to a level where it is not felt. The bearing (10) is inserted into the bearing holder (4114) located in the lid roof (413). In this application, there is a two-stage bearing holder (4114) extending downwards from the lid roof (413) in Figure 34 and cross-sectioned in Figure 35. According to the exploded view in Figure 36 and the best sectional view in Figure 37, the first stage of the bearing retainer (41141) is tightly inserted and threaded into the bearing bore (1011) so that it does not protrude. As a result of this positioning, the bearing inner hub (1012) also contacts the bearing retainer second stage (41142) fully and firmly. As such, the bearing inner race (1012) remains stationary, immobile, while the bearing outer race (1013) is free to rotate. Figure 30 and Figure 31 show the lid (4) with bearing holder (4114) and bearing (10) mounted on the shielded levelling tool (1). As shown in Figure 31, the diameter of the outer core bore (212) is larger than the outer diameter of the bearing inner hub (1012). In another embodiment of the levelling tool(l) having a shielded structure, the diameter of the outer core bore (212) is smaller than the outer diameter of the bearing inner core (1012) and the two diameters are equal. The bearing outer core ( 1013) on the bearing bottom surface (102) contacts the outer core top surface (211). The bearing wall (103) and the lid wall (42) are not in contact with each other and there is a gap between them. In this application, when the lid (4) is turned in the tightening or opening direction, the friction force between the bearing inner core and the bearing outer core in the bearing (10) will be very low when rotated, so the user performs the levelling process with less energy by using the levelling tool with a sheltered structure. In another embodiment of the levelling tool(l) having a shielded structure, said bearing (10) is positioned on the outer core upper surface (211) to perform the same function. In this embodiment, the bearing retainer (4114) in the lid (4) is also located and positioned on the outer core upper surface (211), around the outer core bore. In another application of the levelling tool(l) having a protected structure, one of the first grappling hook (631) or second grappling hook (632) in the grappling hook (63) is removed and one grappling hook (63) is used, as shown in Figure 38. This application fulfills the function of temporary holding, temporary fixing of the coating material (K) on the metal profile, metal sheet or metal angle iron until the adhesive (Y) in question hardens and reaches sufficient strength, especially when the coating material (K) is adhered on elements such as metal profiles, metal sheets and metal angles fixed to vertical surfaces at certain intervals.

In another application of the levelling tool(l) with sheltered structure, the inner core(3) type_l and the lid(4) type_l are used together as shown in Figure 45 in assembled form. In this application, the nut seat (313) and nut (9) in the inner core (3) shown in Figure 43 are removed, cancelled and replaced by channel bolt threads (36) positioned in all or part of the bolt channel (32). The location, position and function of the upper part (31), the inner core hole (311), the inner core upper surface (312), the hook slot (34), the inner core wall (33) and the inner core lower surface (35) in the inner core (3) remain the same. Again, in this application, the lid (4) in Figure 44 is formed in one piece as an integral whole with the fastener (bolt) (8). The lid bolt length (414), lid bolt threads (4141) and lid bolt end (4142) in the lid (4) type_l in Figure 44 are in the same position as the bolt length (82), bolt threads (821) and bolt end (822) in the fastener (bolt)(8) respectively and fulfill the same task, the same function.

In another embodiment of the levelling tool(l) having a shielded structure, as shown in Figure 46, the inner core (3) is positioned in the inner core housing (23) facing to the right or to the left on the vertical axis (De) of the levelling tool(l) having a shielded structure by the angle between the inner core housing walls (231) and thus the angle between the inner core walls (33). In this case, the hook (6), which is connected to the inner core (3) through the hook slot (34), is rotated at the angle as shown in Figure 46. Preferably, the angle between the inner core housing walls (231) and the angle between the inner core walls (33), which is equal to or identical to this angle, is at least 15 degrees, or lower and upper multiples of 15 degrees. Thus, when the levelling tool (1) with a sheltered structure is placed on the coating materials (K), when assembled, the shell ends (223) are positioned perpendicular to the length of the joint (D) between the coating materials (K). In other words, the outer core shell (22) is in a perpendicular (90 degrees) or nearly perpendicular position with respect to the length of the joint (D). The hook (63) is in contact with the bottom edge of the coating materials (K) at an angle of at least 15 degrees with respect to the length of the joint (D). As a result, in this application of the shielded levelling tool (1), the outer core pressure surface (24) contacts the front surfaces of the two adjacent coating materials (K) at the maximum level, level and quantity, while the hook (63) contacts the bottom edge of the coating materials (K) at an angle of at least 15 degrees with respect to the length of the joint (D), as is usually desired.

In another embodiment of the levelling tool (1) having a sheltered structure, while levelling, correcting, levelling the upper surfaces of two coating materials (K) positioned side by side, it simultaneously adjusts and determines the width of the joint (D) and the distance of the joint (D) between the two coating materials (K). This feature of the levelling tool (1) having a protected structure is provided and fulfilled by at least one joint wedge (521) positioned on the protective lower surface (52) shown in Figure 53 and Figure 54, extending downwardly, outwardly, from the protective lower surface (52) towards the base (A). In this application in question;

- The joint wedge (521) is in the form of at least one protrusion extending from the lower surface (52) of the protector in the direction perpendicular to the vertical axis (De), from the vertical axis (De) of the protector (5) downwards, outwards, towards the base (A), into the hook channel (512) as shown in Figure 53/ A. - The joint wedge (521) is in the form of at least one protrusion extending from the bottom surface (52) of the protector (5), which is positioned at an angle of at least 15 degrees with the vertical axis (De), with the hook channel (512) as shown in Figure 53/B, downwards from the vertical axis (De) of the protector (5), outwards, towards the base (A).

- The joint wedge (521) is positioned at opposite ends of the protector (5) as shown in Figure 54/A, and has at least one protrusion extending downwards from the bottom surface (52) of the protector, outwards, towards the base (A).

- The joint wedge (521) has the shape of at least one protrusion extending from the bottom surface (52) of the protector (5) downwards, outwards, towards the base (A), positioned between the hook channel (512) of the protector (5) and one end of the protector (5) as shown in Figure 54/B.

Said joint wedge may be fixed on the protective bottom surface (52) or may be removable from the protective bottom surface according to the width of the joint (D) and the distance between the two coating materials positioned side by side.

In another embodiment of the levelling tool (1) having a sheltered structure, as shown in Figure 55, there are at least two arches (242) on the outer core pressure surface (24) from the center of the outer core pressure surface (24) towards the outer core shell (22) in the form of grooves, slits, notches, indentations. As can be seen in Figure 55/B, the amount of indentation of the arch (242) towards the outer core shell (22) is less than the thickness of the protector. This prevents dirt, dust, mortar waste, adhesive waste, etc. from entering the inner core slot (23) between the belt (242) and the protector.

In the known technique, the edges of some coating materials have sharp and pointed comers. The impact, knocking and/or pressure force that may come from outside on the sharp and pointed edges of such materials may cause these sharp and pointed comers to break, snap or flake. The arch (242) positioned on the outer core pressure surface (24) of the levelling tool (1) having a protected structure, and the features positioned side by side with a joint gap (width) between them prevent the sharp and pointed comers of the two coating materials with sharp and pointed edges from breaking, snapping and flaking against the pressure force applied by the outer core pressure surface (24). As can be clearly seen in Figure 55/C and its detail 5 image Figure 55/D, the outer core pressure surface (24) does not contact the sharp and pointed comers of the coating materials due to the arch. This prevents negative deformations such as breakage, flaking and/or snapping as there is no compressive force on the sharp and pointed comers of the coating materials.