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Title:
A BAR CAPSULE ASSEMBLY FOR CONCRETES
Document Type and Number:
WIPO Patent Application WO/2021/194434
Kind Code:
A1
Abstract:
The present invention essentially relates to a bar capsule assembly (1), which is used especially in concrete road construction and used in load transfer between concrete (B) blocks, comprising at least one outer body (2) which is used by being placed inside the concrete (B) and which has a space inside, at least one movable bar (3) which is provided inside the outer body (2) and which is movable along the space inside the outer body (2), at least one pushing component (4) which is provided inside the outer body (2) and used for applying force on the movable bar (3), at least one lock mechanism (5) which is provided in/on the outer body (2) and which is used for keeping the movable bar (3) in the outer body (2) at a certain position.

Inventors:
AKCAR KUTAY (TR)
Application Number:
PCT/TR2020/050236
Publication Date:
September 30, 2021
Filing Date:
March 26, 2020
Export Citation:
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Assignee:
AKCAR KUTAY (TR)
International Classes:
E01C11/14
Domestic Patent References:
WO2009030940A22009-03-12
Foreign References:
JPS6421102A1989-01-24
EP0676505A21995-10-11
JP2009197561A2009-09-03
Attorney, Agent or Firm:
ANKARA PATENT BUREAU (TR)
Download PDF:
Claims:
CLAIMS

A bar capsule assembly (1), which is used especially in concrete road construction and used for load transfer between concrete blocks, characterized by o at least one outer body (2) which is used by being placed inside the concrete (B) and which has a gap inside, o at least one movable bar (3) which is provided inside the outer body (2) and which is movable along the space inside the outer body (2), o at least one pushing component (4) which is provided inside the outer body (2) and used for applying force on the movable bar (3), o at least one lock mechanism (5) which is provided in/on the outer body (2) and which is used for keeping the movable bar (3) in the outer body (2) at a certain position.

A bar capsule assembly (1), which is used especially in concrete road construction and used for load transfer between concrete blocks, characterized by o at least one outer body (2) which is used by being placed inside the concrete (B) and which has a gap inside, o at least one movable bar (3) which is provided inside the outer body (2) and which is movable along the space inside the outer body (2), o at least one sealing member (7) which is provided on the movable bar (3) and provides sealing between the movable bar (3) and the outer body (2), o at least one lock mechanism (5) which is provided in/on the outer body (2) and which is used for keeping the movable bar (3) in the outer body (2) at a certain position.

A bar capsule assembly (1) according to claim 1 or 2, provided in/on the outer body (2) comprising a short first closed recess (21) which is provided on the inner wall of the outer body (2) and a second channel (22) which extends along the length of the outer body (2) next to the first closed recess (21), at least one bar holder (51) which is positioned such that it will correspond to the end part of the movable bar (3) inside the outer body (2) and comprises at least one lock protrusion (511) for inserting into the first closed recess (21) at the edge parts.

4. A bar capsule assembly (1) according to claim 3, comprising at least one ridge (512) which is provided on the bar holder (51) and which is used in creating friction between the bar holder (51) and the first closed recess (21) and preventing the bar holder (51) from rotating with low force.

5. A bar capsule assembly (1) according to claim 1 or 2, provided in/on the outer body (2) comprising

- at least one bar holder (51) which is positioned at the end part of the bar inside the outer body (2) and which is rotatable inside the outer body (2) with a pin or hinge (52),

- at least one holder protrusion (28) which is provided on the front part of the cap on the inner wall of the outer body (2), at least one first holder slot (271) which is in form of a recess on the inner wall of the outer body (2) and which is for the bar holder (51) fitting therein in the open position. 6. A bar capsule assembly (1) according to claim 3 or 5, comprising at least one movement recess (513) which is provided on the bar holder (51) in order to pull the bar holder (51) upwards or to rotate it.

7. A bar capsule assembly (1) according to claim 6, comprising movement recess (513) which is in polygonal form.

8. A bar capsule assembly (1) according to claim 1 or 2, comprising a lock mechanism (5) which is provided in/on the outer body (2) and comprises at least one actuator and at least one lock latch that is opened in front of the bar holder (51) or moved aside from in front of the bar holder (51) by the movement of an actuator.

9. A bar capsule assembly (1) according to claim 1, comprising pushing component (4) which is a component with flexible structure. 10. A bar capsule assembly (1) according to claim 1, comprising pushing component (4) which is a spring.

11. A bar capsule assembly (1) according to claim 1, comprising pushing component (4) which is hydraulic or pneumatic.

12. A bar capsule assembly (1) according to claim 1 or 2, comprising an end cap (23) which is provided at the end part of the outer body (2) and which can be fixed to the end part of the outer body (2) with a screw pitch connection.

13. A bar capsule assembly (1) according to claim 1 or 2, comprising a window (24) structure which is provided on the outer body (2) and which enables to see whether the movable bar (3) is in locked or unlocked position from the outside.

14. A bar capsule assembly (1) according to claim 13, comprising window (24) structure which is comprised of transparent plexiglass material.

15. A bar capsule assembly (1) according to claim 1 or 2, comprising at least one cut mark (25) provided on the outer body (2) and which is used so that the cutting line of the concrete (B) can be seen from the outside at the expansion joint.

16. A bar capsule assembly (1) according to claim 15, comprising cut mark (25) wall thickness of which is thinner relative to the outer body (2) part.

17. A bar capsule assembly (1) according to claim 1 or 12, comprising at least one adhesive which is used for adhering the released movable bar (3) to the end cap (23) and which is provided on the end cap (23).

18. A bar capsule assembly (1) according to claim 17, comprising adhesive which is a double sided tape or silicon.

19. A bar capsule assembly (1) according to claim 1 or 2, comprising ridge (211) which is provided on the outer surface of the outer body (2) and which is to be placed in the grooves on the forks that press the bars of the concrete paving machine into the concrete (B) and thus prevents it from turning around its axis while pressing the bars into the concrete (B) using vibration.

20. A bar capsule assembly (1) according to any one of the preceding claims, comprising at least one receiver which is provided on the lock mechanism (5) and at least one transmitter which is provided outside the bar capsule.

21. A bar capsule assembly (1) according to claim 20, comprising receiver which is an interface such as a button or a screen.

22. A bar capsule assembly (1) according to claim 8, comprising receiver which enables to open the lock by activating the actuator.

23. A bar capsule assembly (1) according to claim 1 or 2, comprising outer body (2) which is comprised of first body (200) and second body (201) that are connected to each other with screw connection.

24. An apparatus (6) according to any one of the preceding claims, which is used for reaching the bar holder (51) movement recess (513) through the slit made for expansion joint over the concrete (B) road and which has a connection member (61) at its end part for opening the lock mechanism (5).

25. A bar capsule assembly (1) according to claim 24, comprising apparatus (6) which has a connection member (61) at the end part with a polygonal structure.

26. A bar capsule assembly (1) according to claim 25, comprising apparatus (6) which has a telescopic body.

27. A bar capsule assembly (1) according to claim 2, comprising sealing member (7) which is a gasket.

28. A bar capsule assembly (1) according to claim 1 or 2, comprising a compression member (8) which is provided on the inner wall of the outer body (2) and used for preventing the backwards movement of the movable bar (3).

29. A bar capsule assembly (1) according to claim 28, comprising a compression member (8) which can be fixed to the inner wall of the outer body (2) with a pressure spring (9).

30. A bar capsule assembly (1) according to claim 1 or 2, comprising at least one guide channel (29) which is used in rotational movement of the movable bar (2) inside the outer body (2) and extends in form of a recess channel on the inner wall of the outer body (2) and has at least a part with helical form, at least one outer protrusion (31) which provided on the movable bar (3) and moves inside the guide channel (29).

31. A bar capsule assembly (1) according to claim 1 or 4, comprising at least one groove which is provided on the first closed recess (21) on the outer body (2) and which is used for placing the ridge (512) therein. 32. A bar capsule assembly (1), which is used especially in concrete road construction and used in load transfer between concrete blocks, characterized by o at least one outer body (2) which is used by being placed inside the concrete (B) and which has a gap inside, o at least one movable bar (3) which is provided inside the outer body (2) and which is movable along the space inside the outer body (2), o at least one pushing component (4) which is used in moving the movable bar (3) inside the outer body (2) and which is a drive device.

33. A bar capsule assembly (1) according to claim 32, comprising an auxiliary movement member (41) which is connected to a pushing component (4) which is a drive device, which is connected on the movable bar (3) from one side and to the inner screw pitch (210) provided on the inner wall of the outer body (2) from the other side and which can move by rotating inside the outer body (2) via the screw pitch.

34. A bar capsule assembly (1) according to claim 33, comprising auxiliary movement member (41) which has a screw suitable for inner screw pitch (210) thereon.

35. A bar capsule assembly (1) according to claim 32, comprising a shaft hole (32) which extends from the inner part of the movable bar (3) and a drive shaft (10) which passes inside the shaft hole (32) and is connected to the pushing component (4) which is a drive device.

36. A bar capsule assembly (1) according to claim 32, comprising an auxiliary movement member (41) which is connected to the pushing component being drive device, and which is connected on the movable bar (3) from one side and to the inner screw pitch (210) provided on the inner wall of an outer body (2) from the other side and which is a cogwheel that is used rotational movement of the outer body (2).

37. A bar capsule assembly (1) according to claim 32, comprising an outer protrusion (31) which is provided on the movable bar (3) and a guide channel (29) which is provided on the inner wall of the outer body (2) so that the outer protrusion (31) moves therein.

38. A bar capsule assembly (1) according to claim 1, 2 or 32, comprising movable bar (3) and/or outer body (2) which is comprised of stainless steel.

39. A bar capsule assembly (1) according to claim 1, 2 or 32, comprising movable bar (3) and/or outer body (2) which comprises protective coating against corrosion. 40. A bar capsule assembly (1) according to claim 1, 2 or 32, comprising movable bar (3) and/or outer body (2) which are coated with a durable film.

41. A bar capsule assembly (1) according to claim 5, comprising at least one holder ridge (281) which is provided on the holder protrusion (28) and which is used for creating friction force between itself and the bar holder.

42. A bar capsule assembly (1) according to claim 5 or 41, comprising at least one groove which is provided on the bar holder (51) and used for placing the holder ridge (281) therein. 43. A bar capsule assembly (1) according to claim 1 or 19, comprising an outer ridge (211) which is provided on the outer surface of the outer body (2) and which is in form of a protrusion used in preventing the outer body (2) from rotating around its own axis. 44. A bar capsule assembly (1) according to claim 1, comprising at least one marking piece (26) which is used for the marking bar capsule models and which is in form of a projection on the outer body (2) for extending towards the upper part or side part of the concrete. 45. A bar capsule assembly (1) according to claim 1, comprising at least two marking pieces (26) which are used for the marking bar capsule models, which are in form of a projection on the outer body (2) and extend mutually on the outer body (2) in order to be placed inside the concrete in a more balanced manner.

46. A bar capsule assembly (1) according to claim 1 or 32, comprising at least one button which is provided on the outer body (2) and which is connected to the pushing component (4) in order to provide drive for the pushing component (4).

47. A bar capsule assembly (1) according to claim 1 or 32, comprising at least one button which is provided on the lock mechanism (5) and which is connected to the pushing component (4) in order to provide drive for the pushing component (4). A method for placing the movable bar between two concrete plates after cutting the concrete, comprising the following process steps of

- placing the bar capsules that are controlled on the loading mechanism of the paving machine such that the cutting area mark of all of them will be in the same direction,

- replacing the standard bar capsules present in the beginning and in the end

(far right and far left relative to the road construction line) with bar capsule assemblies with location marking features in a suitable type for concrete pouring system of the paving machine that is used,

- placing the bar capsules placed properly in the section on where the expansion joint will be applied by the operator like the normal dowel bars ( as it is in the conventional method) with the help of concrete paving machine dowel bar inserter mechanism inside the concrete,

- determining the location of the cutting line present on the marking capsules right after the paving machine completes the layout and revealing the said location marking protrusions by means of scraping (removing) the thin concrete coating thereon by hand,

- marking the concrete cutting central line by performing an accurate alignment on the said abovementioned cutting line determining protrusion after the concrete is set,

- removing the thin concrete slice in between after the marked cutting lines are cut with concrete joint cutting machines in the exact thickness,

- opening the lock mechanism inside the bar capsules after the cut concrete slice is removed,

- performing joint filling process in the expansion joint space.

A bar capsule assembly (1) according to claim 48, comprising the process step of controlling the bar capsule from the observation window before being placed inside the paving machine and replacing the bar capsule if there is a bar capsule the lock mechanism of which is unlocked during transportation or setting the lock again.

50. A bar capsule assembly (1) according to claim 48, comprising the process step of unlocking the bar capsule lock mechanism (5) with a telescopic key.

51. A bar capsule assembly (1) according to claim 48, comprising the process step of determining the location of bar capsules under the concrete with the help of a magnet. 52. A bar capsule assembly (1) according to claim 5, comprising at least one second holder slot (272) which is in form of a recess on the inner wall of the outer body (2) and which is for the bar holder (51) fitting therein in the open position by moving. 53. A bar capsule assembly (1) according to claim 1 or 12, comprising at least one holder which is used for fixing the released movable bar (3) to the end cap (23) and which is provided on the end cap (23).

54. A bar capsule assembly (1) according to claim 53, comprising holder which is a magnet or an electromagnet.

55. A bar capsule assembly (1) according to claim 1, comprising pushing component (4) which is a magnet or an electromagnet. 56. A bar capsule assembly (1) according to claim 1, comprising at least one marking which is provided on the movable bar (3).

57. A bar capsule assembly (1) according to claim 56, comprising marking which is a colored mark, symbol and/or measurement system.

58. A bar capsule assembly (1) according to claim 2, comprising a manometer which is used in controlling the internal pressure of the outer body (2) and provided on the outer body (2) and at least one pressure gauge which is provided on the outer body (2).

59. A bar capsule assembly (1) according to claim 2, comprising at least one valve which is provided on the outer body (2) and used in adjusting the air pressure inside the outer body (2).

Description:
A BAR CAPSULE ASSEMBLY FOR CONCRETES

Field of the Invention

The present invention relates to a bar capsule assembly for adapting dowel-bar which is used especially in concrete road construction and enables load transfer between concrete blocks to expansion joints.

Background of the Invention

Concrete roads are used in urban roads and intercity transportation just like asphalt roads, however cements is used in their construction as binder unlike asphalt roads. As a result of this, concrete pavements are much more rigid than the asphalt pavements. Concrete roads are comprised of combination of concrete blocks that have approximate sizes of 5 meters in length x 5 meters in width and with a thickness of 0,3 meter. These concrete plates are connected to each other with steel and/or iron bars due to the various technical reasons such as being able to prevent collapse due to infrastructure and ground settlement in concrete roads, and provide a balanced load transfer in joints of the plates. The joints formed in the parting line of concrete blocks next to each other along the way on concrete roads are called “longitudinal joint”, and the concrete blocks are connected to each other with connection bars comprised of deformed reinforcing bars called Tie-bar in the discontinuity formed by the said joint. The joints between the concrete blocks standing in sequential order along the road line are called “transverse joints”, and the plain reinforcing bars, which we call dowel-bar, are used to connect the discontinuities caused by the said joints. The dowel bar allows the concrete to stretch for shrinkage (contraction) of the concrete by moving between the joints at strategic points where it is applied, however, it reduces the stress occurring on the edge of the concrete plate by transferring the load on the edges of the concrete blocks to the next plate and ensures that the load is transferred to the bottom layer uniformly. The use of dowel bars manufactured in many countries in the current technique at airports and roads is included in the technical specifications as a standard.

As it is explained above, joints are divided into two as longitudinal joints formed between the plates standing next to each other on concrete roads and transverse joints between the sequential plates. The transverse joints have two different types, namely contraction joint and expansion joint. The contraction joints are present between each sequential plate (concrete block) (these are also called contraction joint, construction joint). In addition to the contraction joints, expansion joints are manufactured in order to compensate the thermal expansion of the concrete at high temperatures; and the expansion joints are applied in different distances in every 40 meters or more depending on the technical specification and climate conditions. In other words, there is a need to manufacture expansion joints instead of contraction joints at the intervals required by the technical specification. The difference of expansion joints from contraction joints is that a material which can be easily compressed (like foam-board) under pressure is applied in thickness of about 3-4 cm between two concrete plates in order to compensate the said thermal expansion. The same material is included in the same manner onto the ends of the dowel-bars in order not to prevent this compression movement of the dowel-bars, or a special cover made for this purpose called a dowel-bar cap is used.

In the state of the art, dowel-bars are a single longitudinal solid piece and they are immobile and placed between the concrete blocks in this way as it is explained above. In concrete road constructions made with concrete paving machine, in the state of the art, there is a plurality of methods for placing immobile dowel-bars into the concrete in order to form an expansion joint.

Modem concrete paving machines (concrete paver) used today can place the standard dowel-bars used in contraction joints at desired intervals in control of the operator via a special inserter mechanism existing in the paving machine by compressing with vibration into the placed and compacted concrete by means of the power of the machine. However, as it is explained above, it is not possible that the compressible material in thickness of 3-4 cm to be used in expansion joints (like styrofoam) is placed inside the compacted concrete under these conditions with the help of the machine. For this reason, the production of expansion joints are carried out with manpower, independent from the concrete paving machine in the current construction technique.

One of these methods is the concrete paving machine leaving approximately five meters of gap for the placement of expansion joint while manufacturing with concrete paving machine (concrete paving machine) and continuing to cast concrete with the paving machine. In the other method, the concrete paving machine moves by casting concrete continuously and the sections (concrete block) to be constructed with expansion joint on the concrete are cut and broken and removed by labor force. In another embodiment, the concrete paving machine waits for the concrete to set (between 8 and 12 hours) before the expansion joint is formed, and the concrete paving machine continues to operate after the expansion joint elements (styrofoam etc.) are added to the hardened concrete finish section.

In the methods wherein cuts made on the concrete road, or executed by leaving a gap in the concrete road lining, styrofoam and dowel-bar (capped dowel-bar) are installed within the gap of about 5 meters for the production of expansion joint; after the other necessary preparations are completed by installing the side molds, concrete pouring is realized without paving machine by using necessary machinery equipments and manpower.

In the current technique, as it is mentioned above, in the methods of leaving gap for expansion joint manufacturing, waiting for expansion joint installation or cutting concrete, expansion joints and concrete blocks are poured and leveled by manpower using machinery. The manpower loss in these methods is approximately 4 men-days for each expansion joint. In addition to manpower loss, the concrete blocks dismantled by cutting cause concrete loss. In a concrete road project having a thickness of 25 cm, width of 10 and a concrete block length of 5 meters, the dismantling of 1 concrete block will cause 12.5 m 3 of concrete loss. In order to reduce the loss of concrete, even if the thickness of concrete to be wasted is tried to be decreased by placing an amount of sand under the concrete blocks where expansion joints to be applied (that is under the concrete blocks to be dismantled later), the loss is at least 7-8 m 3 per expansion joint. In addition, a lot of time loss occurs while waiting or pouring concrete later, and this situation reflects negatively on the concrete road project in terms of labor and cost.

United States Patent document no US7874762B2, an application known in the state of the art, relates to dowel bars used in concrete roads, and a dowel bar cap (protection cover) enclosed over the ends of the dowel bar remaining outside. The dowel bars in the said document are immobile.

In United States Patent document no US5674028A, an application known in the state of the art, the invention relates to dowel bars used in concrete roads and fixing the dowel bar on sleeved present inside the concrete. The dowel bars in the said document are immobile.

The Problems Solved with the Invention

The objective of the present invention is to provide a bar capsule assembly which is used for load transfer between concrete blocks in expansion joints, and enables the concrete paving machine to make production without stopping in a fast and practical manner, and thereby eliminating the need for concrete casting via manpower afterwards.

Another objective of the present invention is to provide bar capsule which can be used by being placed inside the concrete via concrete paving machine’ dowel-bar inserter and therefore enables to continue the production of concrete road without interruption. A further objective of the present invention is to provide a bar capsule which enables the dowel-bar to be fixed to the section on which the expansion joint is applied with minimum concrete loss, manpower and time loss.

Detailed Description of the Invention

A bar capsule assembly developed to fulfill the objective of the present invention is illustrated in the accompanying figures wherein:

Figure 1 is the top and side view of a bar capsule of the present invention adapted on the concrete blocks.

Figure 2 is a side view of the profile of the bar capsule of the present invention. Figure 3 is detailed view of parts in an embodiment of lock mechanism present in the bar capsule of the present invention.

Figure 4 is detailed view of parts in another embodiment of lock mechanism present in the bar capsule of the present invention.

Figure 5 is detailed view of parts in another embodiment of lock mechanism present in the bar capsule of the present invention.

Figure 6 is detailed view of parts in another embodiment of lock mechanism present in the bar capsule of the present invention.

Figure 7 is the side cross-sectional detailed view of the bar capsule of the present invention for the marking capsule model.

Figure 8 is the top cross-sectional detailed view of the bar capsule of the present invention for the marking capsule model.

Figure 9 is the side detailed view of a sealing member in an embodiment of the bar capsule of the present invention.

Figure 10 is the side detailed view of a compression member in an embodiment of the bar capsule of the present invention. Figure 11 is the detailed view of a helical channel in an embodiment of the bar capsule of the present invention.

Figure 12 is a side view of pushing component and the related mechanism in an embodiment of the bar capsule of the present invention.

Figure 13 is a side view of pushing component and the related mechanism in an embodiment of the bar capsule of the present invention.

Figure 14 is a side view of pushing component and the related mechanism in an embodiment of the bar capsule of the present invention.

Figure 15 is a side sectional and additional detail view of pushing component and the related mechanism in an embodiment of the bar capsule of the present invention.

Figure 16 is a side view of apparatus used for the bar capsule of the present invention.

The components given in the figures are individually numbered where the numbers refer to the following.

1. Bar capsule assembly

2. Outer body

21. First closed recess

22. Second channel

23. End cap

24. Window

25. Cut mark

26. Marking piece

271. First holder slot

272. Second holder slot 28. Holder protrusion 281. Holder ridge

200. Fir st body

201. Second body 29. Guide channel

210. Inner screw pitch

211. Outer ridge

3. Movable bar

31. Outer protrusion

32. Shaft hole

4. Pushing component

41. Auxiliary movement member

5. Lock mechanism

51. Bar holder

511. Lock protrusion

512. Ridge

513. Movement recess

52. Pin or hinge

6. Apparatus

61. Connection member

7. Sealing member

8. Compression member

9. Pressure spring

10. Drive shaft B. Concrete

A bar capsule assembly (1), which is specifically used in construction of concrete road and also used in load transfer between concrete blocks, comprises o at least one outer body (2) which is used by being placed inside the concrete (B) and which has a gap inside, o at least one movable bar (3) which is provided inside the outer body (2) and which is movable along the space inside the outer body (2), o at least one pushing component (4) which is provided inside the outer body (2) and used for applying force on the movable bar (3), o at least one lock mechanism (5) which is provided in/on the outer body (2) and which is used for keeping the movable bar (3) in the outer body (2) at a certain position.

The bar capsule assembly (1) of the present invention is placed between the concrete (B) blocks and used for reinforcement between the concrete (B) blocks and transferring the load stress occurring at the edge of the block to the other block. The bar capsule assembly (1) is comprised of an outer body (2) and an inner movable bar (3) provided and movable inside the outer body (2). The movable bar (3) is pushed from one end of the outer body (2) to its other end via a pushing component (4). There is a lock mechanism (5) used for keeping the movable bar (3) at a certain position inside the outer body (2) or releasing it. The lock mechanism (5) is at the front part of the movable bar (3) in locked position and prevents its movement inside the outer body (2). When the lock mechanism (5) is in open position, the movable bar (3) is released and moves inside the outer body (2) with the pushing force of the pushing component (4). The said lock mechanism (5) can be opened by outside intervention from the opening made between the concrete plates for expansion joint on the concrete (B) when the bar capsule assembly (1) is inside the concrete (B), and therefore the movable bar is enabled to move inside the outer body (2) and to be positioned between the concrete (B) blocks. The concrete (B) is cut after the bar capsule assembly (1) of the present invention is placed inside the concrete (B), and the outer body (2) is also cut together with the concrete (B). The lock is opened with outside intervention after cutting, and the movable bar (3) moves and passes to the cut part of the outer body (2) and takes the desired position inside the concrete (B).

In one embodiment of the invention, the pushing component (4) is a spring. In another embodiment of the invention, one end of the spring is fixed to the end part of the outer body (2) and its other part is fixed to one end of the movable bar (3). In one embodiment of the invention, there is a window (24) structure provided on the outer body (2) and enabling whether the movable bar (3) is in locked or unlocked position is seen from outside. In one embodiment of the invention, there are two windows (2) on the outer body (2) opposing each other. In one embodiment of the invention, the window (24) is comprised of a transparent material. In another embodiment of the invention, the transparent material is plexiglass. In one embodiment of the invention, the window is a glass placed in a hole provided on the outer body (2). These windows (24) are made for controlling whether the bar capsule assembly (1) is unlocked on its own due to the turbulences occurring during transportation.

In one embodiment of the invention, there is an end cap (23) provided at the end part of the outer body (2) and enabling the end part of the outer body (2) to be retractable. The end cap (23) is preferably fixed to the end of the outer body (2) with a screw pitch and it can be attached and detached on the outer body (2) with a simple turning movement.

In another embodiment of the invention, there is an adhesive or holding material (double coated tape, silicon, magnet, etc.) in the inner part of the said cap (23). This adhesive material enables the movement bar (3) that is released after the locking mechanism (5) is opened to adhere to the said cap so that when the pushing component (4) loses its pushing feature, the movable bar (3) is prevented from moving backwards in the outer body (2). In case the holding member is a magnet, the magnet is fixed on the cap, and this magnet enables the movable bar to be fixed on the cap with the attraction force of the metal magnet. In another embodiment of the invention, there is a magnet both on the end part of the movable bar (3) and on the cap, and the magnet is enabled to be fixed on the cap with the magnet- magnet attraction force of the movable bar (3).

In another embodiment of the invention, there is an outer ridge (211) in form of a protrusion provided on the outer surface of the outer body (2) and used for preventing the outer body (2) from turning around its own axis. The outer ridge (211) is placed in the grooves on the forks that press the bars of the concrete paving machine into the concrete (B) and prevents it from turning around its axis while pressing the bars into the concrete (B) using vibration.

In one embodiment of the invention, there is at least one marking piece (26) which is used for the marking capsule models and which is form of a projection on the outer body (2) for extending over the upper or side part of the concrete. The location of the marking capsules can be determined via the marking piece that is formed by slightly removing the fresh concrete.

In one embodiment of the invention, there are two marking pieces (26) used for the marking capsule models, provided in form of a projection on the outer body

(2) and extending mutually (preferably left and right) on the outer body (2) for being placed inside the concrete in a more balanced manner. While placing the bar capsule assembly (1) on the compacted concrete by vibration, a similar marking piece (26) is added on the opposite side to provide better balance, even if there is a ridge preventing turning. In this way, the bar capsule assembly (1) can be placed inside the concrete in a more balanced way.

In an embodiment of the present invention, there is at least one cut mark (25) on the outer body (2) which is used in the expansion joint so that the cutting segment of the concrete (B) is visible from outside and in also determining the capsule placement direction being correct. In one embodiment of the invention, the cut mark (25) is colored strip fixed around the outer body (2).

In one embodiment of the invention, the wall thickness of the outer body (2) is thinner on the cut mark (25) and/or on a close part. In this way, burrs that may occur on the outer body (2) that is cut together with the concrete (B) where the expansion joint will be applied do not prevent the movement of the movable bar

(3). In one embodiment of the invention, there is a receiver on the lock mechanism (5) and there is a transmitter outside the bar capsule assembly (1). The user gives a command of unlocking the lock with the transmitter (a button interface, etc.) to the bar capsule assembly (1) from outside, and the receiver receiving the command unlocks the movable bar (3) by opening the lock according to the command received. In another embodiment of the invention, the receiver operates a drive device, and the drive device unlocks the lock.

In one embodiment of the invention, the outside body (2) and the inner bar have a cylindrical structure.

In one embodiment of the invention, the length of the inner space of the outer body (2) is more than the length of the movable bar (3).

In one embodiment of the invention, the lock mechanism (5) comprises a short first closed recess (21) which is provided on the inner wall of the outer body (2) and a second channel (22) which extends along the length of the outer body (2) next to the first closed recess (21), at least one bar holder (51) which is positioned such that it will correspond to the end part of the movable bar (3) inside the outer body (2) and comprises at least one lock protrusion (511) for inserting into the first closed recess (21) at the edge parts.

The said bar holder (51) is located in front part of the movable bar (3) in the locked position and the lock protrusion (511) is provided inside the first closed recess (21). Since the lock protrusion (511) is located in the first closed recess (21), the bar holder (51) cannot move linearly. The bar holder (51) part is turned to bring the lock to the open position, and the lock protrusion (511) of the bar holder (51) is released from the first closed recess (21), thus coming to the level of the second channel (22). In this case, with the force of the pushing component (4), the movable bar (3) pushes the bar holder (51) in forward direction and the bar holder (51) moves together with the movable bar (3).

In one embodiment of the invention, there is a ridge (512) on the bar holder (51). The ridge (512) is in contact with the first closed recess (21), creating friction between the bar holder (51) and the first closed recess (21) and thereby preventing the bar holder (51) from rotating with low force or turbulence. In another embodiment of the present invention, there is at least one groove located on the first closed recess (21) provided in the outer body (2) and used for placing the ridge (512) therein.

In an embodiment of the present invention, there is at least one polygon-shaped connection recess (513) or connection protrusion (513) provided on the bar holder (51) and used to make the bar holder (51) rotatable by an external apparatus. In this way, the bar holder (51) can be rotated from the opening of the concrete (B), which is cut and removed, with a suitable apparatus for a polygonal shape.

In one embodiment of the invention, the lock mechanism (5) comprises at least one bar holder (51) which is positioned at the end part of the bar inside the outer body (2) and which is rotatable inside the outer body (2) with a pin or hinge (52), at least one holder protrusion (28) which is provided on the front part of the bar holder (51) on the inner wall of the outer body (2), at least one first holder slot (271) which is in form of a recess on the inner wall of the outer body (2) and which is for the bar holder (51) fitting therein in the open position.

The said bar holder (51) is positioned in front of the movable bar (3) in the locked position and does not move inside the outer body (2) by contacting a fixed holder protrusion (28) and holds the movable bar (3). When the bar holder (51) is moved with an upward movement, it is released from the holder protrusion (28) and rotates together with the hinge or pin (52), to which it is connected, via the pushing force of the movable bar (3), and it is placed inside the first holder slot

(271) provided on the outer body (2) and allows the movable bar (3) to move in forward direction.

In one embodiment of the invention, it comprises at least one second holder slot

(272) which is in form of a recess on the inner wall of the outer body (2) and which is for the bar holder (51) fitting therein in the open position by moving. Upon opening of the bar holder (51), the bar holder passes over the first holder slot and the bar holder (51) moves and fits on the second holder slot in order not to prevent the movement of the movable bar (3).

In one embodiment of the invention, there is at least one holder ridge (281) provided on the holder protrusion (28) and creating a friction force between itself and the bar holder. The holder ridge (281) creates friction between the bar holder (51) and the holder protrusion (28) and prevents the upward movement of the bar holder (51) with low force or shaking. In another embodiment of the invention, there is at least one groove provided on the bar holder (51) and used for placing the holder ridge (281) therein.

In an embodiment of the present invention, there is at least one movement recess (513) provided on the bar holder (51) for pulling the bar holder (51) in upward direction. In another embodiment of the present invention, there is at least one tab protrusion (513) provided on the bar holder (51) for pulling the bar holder (51) in upward direction.

In one embodiment of the invention, the outer body (2) is comprised of a first body (200) and a second body (201) fixed to each other, and these two parts are fixed to each other via screw connection. In an embodiment of the invention, there is at least one apparatus (6) which is used for reaching the holder through the slit made for expansion joint on the concrete (B) road and which has connection member (61) at its end part for opening the lock mechanism (5). In one embodiment of the invention, there is a polygonal structure on the connection member (61) at the end part of the apparatus (6). In another embodiment of the invention, the end part of the apparatus (6) has an L shape. In one embodiment of the invention, the body of the apparatus (6) is telescopic.

A bar capsule assembly (1) of the invention, which is specifically used in construction of concrete road and also used in load transfer between concrete blocks, comprises o at least one outer body (2) which is used by being placed inside the concrete (B) and which has a gap inside, o at least one movable bar (3) which is provided inside the outer body (2) and which is movable along the space inside the outer body (2), o at least one sealing member (7) which is provided on the movable bar (3) and provides sealing between the movable bar (3) and the outer body (2), o at least one lock mechanism (5) which is provided in/on the outer body (2) and which is used for keeping the movable bar (3) in the outer body (2) at a certain position.

The sealing member (7) is a gasket. Gas is pumped into inside part between the said sealing member (7) and the rear part of the movable bar (3) and the outer body (2), and it is ensured by the sealing member (7) that the pumped gas remains between the outer body (2) and the movable bar (3). The pressurized gas pushes the movable bar (3) upon the unlocking of the lock mechanism (5).

In one embodiment of the invention, there is a compression member (8) provided on the inner wall of the outer body (2) and used for preventing the backward movement of the movable bar (3) in case the pressure of the gas drops, and the compression member (8) is positioned on the inner wall of the outer body (2) with a pressure spring (9).

In one embodiment of the invention, there is a manometer which is used for controlling the internal pressure of the outer body (2) and provided on/in the outer body (2), and at least one pressure gauge on the outer body (2). In this way, it can be checked whether enough pressure is available to generate the driving force before placing the bar capsule assembly into the concrete.

In an embodiment of the invention, there is at least one valve which is provided on the outer body (2) and which is used for adjusting the air pressure inside the outer body (2). Therefore, pressure losses that may occur during transportation can be compensated via a pump from outside before use. In another embodiment of the invention the valve is a pressure valve.

In one embodiment of the invention, there is a lock mechanism (5) provided in/on the outer body (2) and comprising at least one actuator and at least one lock latch that is opened in front of the bar holder (51) or moved aside in front of the bar holder (51) by the movement of an actuator.

In one embodiment of the invention, there is at least one guide channel (29) used in rotational movement of the movable bar (2) inside the outer body (2) around its own axis and extending in form of a recess channel on the inner wall of the outer body (2) and having at least a part of helical form, and at least one outer protrusion (31) provided on the movable bar (3) and moving inside the guide channel (29).

A feature of the movable bar (3) moving by rotating is that it is oval. The movable bar (3) moves by rotating, and minimizes the space between the movable bar (3) and the outer body (2) at the point where it is opened. Thus, the elevation factor between 2 concrete blocks decreases. In one embodiment of the invention, the pushing component (4) is a piston. In one embodiment of the invention, the pushing component (4) is a hydraulic or pneumatic piston. In one embodiment of the invention, the pushing component (4) is a motor.

A bar capsule assembly (1) of the invention, which is specifically used in construction of concrete road and also used in load transfer between concrete blocks, comprises o at least one outer body (2) which is used by being placed inside the concrete (B) and which has a gap inside, o at least one movable bar (3) which is provided inside the outer body (2) and which is movable along the space inside the outer body (2), o at least one pushing component (4) which is used in moving the movable bar (3) inside the outer body (2) and which is a drive device.

In one embodiment of the invention, the pushing component (4) is a motor and the motor is connected to an auxiliary movement member (41) that is connected on the movable bar (3) from one side and to the inner screw pitch (210) provided on the inner wall of an outer body (2) from the other side and that can move by rotating inside the outer body (2). There is screw pitch on the said auxiliary movement member (41), and the auxiliary movement member (41) rotates together with the movement of the motor. Upon the rotation of the auxiliary movement member (41), the auxiliary movement member (41) moves linearly inside the outer body (2), and also moves the motor and the movable bar connected to motor inside the outer body (2). In one embodiment of the invention, there is an outer protrusion (31) provided on the movable bar, and the said outer protrusion (31) moves inside a guide channel (29) present on the inner wall of the outer body (2). In this way, the movable bar is prevented from rotating, and it is provided that it only moves linearly. Furthermore, the outer protrusion (31) limits the forward movement of the movable bar (3) upon contacting (hitting) the closed end of the guide channel (29). In this way, the movable bar (3) does not abut against the end cap (23), there is a distance between itself and the end cap (23) at least as much as the expansion joint opening.

In one embodiment of the invention, the pushing component (4) is a motor and there is a shaft hole (32) extending from the inner part of the movable bar (3) and a drive shaft (10) is connected to the end of the motor and passing inside the shaft hole (32). There is a screw pitch provided on the drive shaft (10) and the shaft hole (32), and the movable bar (3) moves inside the outer body (2) with the rotational movement of the shaft.

In one embodiment of the invention, the pushing component (4) is a motor and the motor is connected to the movable bar (3) from one side and to the auxiliary movement member (41) from the other side which is connected to the inner screw pitch (210) provided on the inner wall of an outer body (2) and which is a cogwheel used in movement on the outer body (2) with rotational movement. In one embodiment of the invention, there is an outer protrusion (31) provided on the movable bar, and the said outer protrusion (31) moves inside a guide channel (29) present on the inner wall of the outer body (2). Therefore the linear movement of the movable bar (3) is achieved.

In one embodiment of the invention, the movable bar (3) or outer body (2) is comprised of stainless steel used for resistance against corrosion and outer environmental conditions, and they can comprise coating for protection against corrosion. In another embodiment of the invention, the movable bar (3) or outer body (2) is coated with a durable film.

In one embodiment of the invention, there is at least one button provided on the outer body (2). When the said button is pushed with a suitable apparatus from the outside, the pushing component (4) provides the drive and the pushing component (4) pushes the movable bar (3) and allows it to be positioned between the two concrete plates. In another embodiment of the invention, the button is on the locking system.

In one embodiment of the invention, the pushing component (4) is a magnet or an electromagnet. The movable bar (3) is moved with the magnetic force created upon activation of the magnet or the electromagnet. The movable bar (3) is moved by the impulsion created by the like poles of the magnet and the attraction force created by the opposite poles by means of activating the electromagnet or opening the lock mechanism (5) of the bar holder. In one embodiment of the invention, the movable bar has attractional feature by means of the magnet property existing on the end cap (23). In one embodiment of the invention, the magnet/electromagnet is provided in the rear part of the body (2) (the part facing the movable bar). In another embodiment of the invention, the magnet/electromagnet is provided on the movable bar (3).

In one embodiment of the invention, there is at least one marking on the movable bar (3). The said marking is a colored mark, symbol and/or a measurement system in another embodiment of the invention. In this way, after the lock mechanism (5) is opened, it can be observed from the expansion joint slit opened in the concrete that the movable bar (3) moves forward and goes till the end of the capsule (it rests till the end cap).

The invention is a method for placing the movable bar between two concrete plates after cutting the concrete, and comprises the following process steps: placing the capsules that are controlled on the loading mechanism of the paving machine such that the cutting area mark of all of them will be in the same direction, replacing the standard bar capsules present in the beginning and in the end (far right and far left relative to the road construction line) with bar capsule assemblies with location marking features in a suitable type for concrete pouring system of the paving machine that is used, placing the bar capsules placed properly in the section on where the expansion joint will be applied by the operator like the normal dowel bars ( as it is in the conventional method) with the help of concrete paving machine dowel bar inserter mechanism inside the concrete, determining the location of the cutting line present on the marking capsule assemblies right after the paving machine completes the layout and revealing the said location marking protrusions by means of scraping (removing) the thin concrete coating thereon by hand, marking the concrete cutting central line by performing an accurate alignment on the said abovementioned cutting line determining protrusion after the concrete is set, removing the thin concrete slice in between after the marked cutting lines are cut with concrete joint cutting machines in the exact thickness, opening the lock mechanism inside the bar capsules after the cut concrete slice is removed, performing joint filling process in the expansion joint space.

In one embodiment of the invention the capsule is controlled through the observation window before it is placed inside the paving machine, and if there is a capsule the lock mechanism of which is unlocked during transportation, that capsule should be replaced or the lock is set up again.

In one embodiment of the invention, the lock mechanism (5) of the capsule is unlocked via a telescopic key.

In one embodiment of the invention, the location of the capsules under concrete is determined with the help of a magnet.