Technical Field The invention relates to a gradual positioning mechanism for window systems which allows the casement to be kept open and locked at any desired angle.

In particular, the invention relates to a gradual positioning mechanism for window systems configured to allow sufficient ventilation without hindering security elements.

Prior Art

Windows can be defined as openings with glazing set in a frame, formed in general on the walls of many structures such as houses, offices, storehouses, etc., in order to provide air ventilation and field of view for the structure. In general, window configurations comprise a window frame set in an opening through a surface such as a wall, and at least one casement installed into this frame by means of a hinged connection. Windows are operated by opening and closing the casement onto the window frame.

Currently used window systems are in particular utilized by leaving them open to allow air flow from inside to outside, and from outside to inside the structure. Leaving a casement free may lead the casement to impact into window frame or any other structure due to factors such as wind etc. This impact may result in breaking or damaging of both the casement and the glass pane inside the casement. Furthermore, leaving the window open possesses the risk of falling in places where children are present. Specially designed stoppers or other random objects are placed between the casement and the window frame to establish a gradual opening, in order to prevent such accidents. On the other hand, such applications may lead the objects placed in between to fall out of the window and cause injuries of third parties. Ventilation arms made of plastic are used to prevent such incidents. On the other hand, the opening established by means of these ventilation arms are usually inadequate and provide only a limited amount of ventilation. In addition, there are embodiments such as the hinge structure of the application no. WO2006078169 which is intended to be used with windows to provide two different ventilation positions and a childproof safety lock. On the other hand, these configurations provide a limited number of ventilation positions and allow insufficient stepping. The application no. TR201606708 discloses an adjustable and lockable mechanism developed to be used with windows and doors. Apart from establishing gradual opening and achieving a locking function, the structure provides a many-component embodiment and results in undesired protrusions near the window especially when the gradual opening is narrow. In addition to risk of injuring the user, these protrusions also lead to an undesired appearance. The application no. CN103938960 discloses a ball which moves along a curved rail and which sits into holes on the curved arc in order to establish locking at a certain position. Even though this invention provides ventilation at various angles and has a compact structure, the locking element it contains only provide a simple fixing and fail to deliver a tight locking function especially for children.

Therefore, the aforementioned problems and lack of a solution in the present art have made it necessary to make a development in the relevant technical field.

Brief Description of the Invention

The present invention relates to a gradual positioning mechanism which allows establishing locking to maintain the casement fixed at multiple ventilation positions, in order to overcome the aforementioned disadvantages and provide further advantages in the relevant technical field.

The primary object of the invention is to provide a gradual positioning mechanism developed to allows positioning casements open at different positions.

Another object of the invention is to provide a gradual positioning mechanism developed to ensure the casement to be locked where it is positioned. Another object of the invention is to provide a gradual positioning mechanism which occupy only a small area on the window with its compact structure.

In order to achieve all of the aforementioned objects along with those will be apparent from the detailed description, the invention relates to a gradual positioning mechanism which comprises a casement connector part which is connected to the casement, a frame connector part which is connected to the window frame, and a locking element which provides locking function by connecting the said casement connector part and the frame connector part. Accordingly, the gradual positioning mechanism of the invention comprises a positioning plate introduced at the said frame connector part and positioning seats in which the said locking element is placed in order to establish a gradual opening in the window system, and which are located side by side such that they define a spring line on the said positioning plate.

A preferred embodiment of the invention comprises a mounting plate introduced on the said casement connector part. Another preferred embodiment of the invention comprises a lock mounting hole and a frame mounting hole introduced on the said mounting plate.

Another preferred embodiment of the invention comprises a stop pin introduced on the said mounting plate.

Another preferred embodiment of the invention comprises an adjusting hole introduced on the said positioning plate, concentrically with the frame mounting hole.

Another preferred embodiment of the invention comprises a cap pin which is introduced inside the frame mounting hole and the adjusting hole in order to connect the casement connector part and the frame connector part.

Another preferred embodiment of the invention comprises a spacer washer introduced at the frame mounting hole of the cap pin and a ring washer introduced under the adjusting hole.

Another preferred embodiment of the invention comprises a locking pin positioned at the positioning seat of the locking element and a spring positioned on the said locking pin. Another preferred embodiment of the invention comprises a pin bearing in which the said spring of the locking element and the locking pin are positioned, and a body introduced at the mounting plate, where the said pin bearing is positioned.

Another preferred embodiment of the invention comprises a carrier handle which is introduced on the said body and which allows the locking pin to be placed into the positioning seat by being axially rotated.

Another preferred embodiment of the invention comprises a lug introduced on the said carrier handle and a lug seat introduced at the body, into which the said lug is positioned with the rotation of the carrier handle in order to switch to the lock state. Another preferred embodiment of the invention comprises, next to the positioning seats, a lock seat introduced on the same spring line, in order to establish a window opening narrower than the said positioning seats, in order to provide childproof safety lock feature.

The invention with its embodiment and further elements and advantages shall become apparent with the drawings described below, therefore assessment should be based on these drawings.

Brief Description of Drawings

Figure 1 Is a general view of the positioning mechanism of the invention.

Figure 2 Is a front perspective view of the positioning mechanism.

Figure 3 Is a top perspective view of the positioning mechanism.

Figure 4 Is a detail view of the positioning mechanism.

Figure 5a Is a front perspective view of the casement connector part.

Figure 5b Is a top perspective view of the casement connector part.

Figure 6a Is a front perspective view of the frame connector part.

Figure 6b Is a top perspective view of the frame connector part. Reference Numbers

10 Positioning Mechanism

20 Casement Connector Part

21 Casement Fixing Plate 21 1 Casement Fixing Hole

22 Mounting Plate

221 Lock Mounting Hole

222 Frame Mounting Hole

223 Stop Pin

30 Frame Connector Part

31 Frame Fixing Plate

31 1 Frame Fixing Hole

32 Positioning Plate

321 Adjusting Hole 322 Positioning Seat

323 Lock Seat 40 Cap Pin

41 Spacer Washer

42 Ring Washer

50 Locking Element

51 Carrier Handle

51 1 Lug

52 Body

521 Lug Seat 522 Bearing Groove

53 Pin Bearing

531 Upper Opening

54 Spring

55 Locking Pin

551 Limiter Part w: Spring Line Detailed Description of the Invention

The innovation of the invention shall become apparent with the examples provided by the herein detailed description, without limiting the scope of the invention.

The gradual positioning mechanism (10) used in the frame system, whose general view is shown in Figure 1 , essentially comprises a casement connector part (20) which is connected to the casement, a frame connector part (30) which is connected to the window frame, a cap pin (40) which connects the said frame connector part (30) and the casement connector part (20), and a locking element (50).

Views of the casement connector part (20) are shown in Figures 5a and 5b. Accordingly, the casement connector part (20) comprises a casement fixing plate (21 ) which is placed on the casement, and a mounting plate (22) which is introduced in continuation of the said casement fixing plate (21 ) at an angle sufficiently perpendicular to the casement fixing plate (21 ). Casement fixing holes (21 1 ) are configured on the casement fixing plate (21 ) and connector elements introduced on the said casement fixing holes (21 1 ) allow the casement connector part (20) to be connected onto the casement. The said mounting plate (22) comprises a lock mounting hole (221 ) in which the said locking element (50) is guided, a frame mounting hole (222) in which the frame connector part (30) is guided, and a stop pin (223). The said stop pin (223) allows the positioning mechanism (10) to be mounted concentrically window hinge and operate about this axis.

Views of the frame connector part (30) are shown in Figures 6a and 6b. Accordingly, the frame connector part (30) comprises a frame fixing plate (31 ) which is placed on the window frame, and a positioning plate (32) which is introduced in continuation of the said frame fixing plate (31 ) at an angle sufficiently perpendicular to the frame fixing plate (31 ). Frame fixing holes (31 1 ) are introduced on the frame fixing plate (31 ) and connector elements introduced on the said frame fixing holes (31 1 ) allow the frame connector part (30) to be connected onto the window frame. The said positioning plate (32) comprises an adjusting hole (321 ) which is configured to lie along the same axis with the said frame mounting hole (222). The slotted structure of the said adjusting hole (321 ) provides adaptability to the mounting element during the mounting of the locking element (50) and provides convenience during mounting with different casement dimensions. Furthermore, positioning seats (322) are introduced side by side on the positioning plate (32) in order to provide ventilation. The locking element (50) is connected inside the said positioning seats (322). The arrangement of the positioning seats (322) on the positioning plate (32) define a spring line (w). The first on of the said positioning seats (322) defines a lock seat (323) and a childproof safety lock is realized by positioning the locking element (50) into this seat.

The said cap pin (40) provides a structure introduced inside the frame mounting hole (222) and the adjusting hole (321 ) in order to connect the casement connector part (20) and the frame connector part (30). The cap pin (40) comprises a spacer washer (41 ) located on the mounting plate (22) and a ring washer (42) located under the positioning plate (32). The said spacer washer (41 ) prevents the rubbing between the casement connector part (20) and the frame connector part (30). The said ring washer (42) allows the cap pin (40) to be fixed at the location in the frame mounting hole (222) and the adjusting hole (321 ) where it is positioned. The locking element (50) shown in detail in Figure 4 is positioned on the mounting plate (22) by being inserted into the lock mounting hole (221 ). The locking element (50) comprises a carrier handle (51 ), a body (52) introduced on the said carrier handle (51 ), a pin bearing (53) introduced inside the said body (52), and a spring (54) and a locking pin (55) introduced inside the said pin bearing (53). A lug (51 1 ) is introduced under the carrier handle (51 ) and this lug (51 1 ) is inserted into a lug seat (521 ) arranged on the upper part of the body (52), in order to realize locking function. A bearing groove (522) is arranged inside the body (52) and the said pin bearing (53) lies inside this bearing groove (522). An upper opening (531 ) is introduced at the upper end of the pin bearing (53) and the upper end of the said locking pin (55) extends outside through the said upper opening (531 ) and connects to the carrier handle (51 ). A limiter part (551 ) is introduced at the lower end of the locking pin (55). A connection between the locking element (50) and the mounting plate (22) by placing the pin bearing (53) into the lock mounting hole (221 ). The locking pin (55) is placed into one of the predefined positioning seats (322) when the locking is going to be established. The gradual positioning mechanism (10) of the invention is suitable for mounting to all types of currently used window systems and able to operate with all hinge systems. The positioning mechanism (10) provides four stages for ventilation. The lock seat (323), which is the first one of these four stages provides childproof safety lock function, while positioning seats (322), which are the remaining other three, provide ventilation function. Upon deciding on the ventilation level desired with the positioning mechanism (10), the casement is put into the proper position and at this step, the locking element (50) is aligned over the positioning plate (32). In order to maintain the locking element (50) at passive state, it should be pulled from the carrier handle (51 ) and locking pin (55) should be raised inside the pin bearing (53) by means of the compressive effect of the spring (54). Once the locking element (50) is aligned over the proper positioning seat (322) corresponding to the desired level, the carrier handle (51 ) is rotated in order to allow the lug (51 1 ) to sit inside the lug seat (521 ). Thereby the locking pin (55) is released from the effect of the spring (54) and moves in downward direction and activates the locking element (50) by sitting into the positioning seat (322). Once the locking function is realized, the casement connector part (20) is maintained at a fixed position on the frame connector part (30). Thereby, the position of the casement is fixed. Once the locking pin (55) is positioned inside the lock seat (323), the distance left between the casement and the window frame is narrow enough to prevent passage of any child, and thus realized the function of a childproof safety lock.