WO2019066746A2

WO2019066746A2 - Locking mechanism for a sliding door

Info

Publication number: WO2019066746A2
Application number: PCT/TR2018/050144
Authority: WO
Inventors: Fabio STRATICO
Original assignee: Celikform Gestamp Otomotiv A.S.
Priority date: 2017-04-05
Filing date: 2018-04-04
Publication date: 2019-04-04
Also published as: WO2019066746A3

Abstract

The present invention relates to a locking mechanism for providing fixing of the sliding door in open position as desired by the user and for providing opening/closing of the sliding door, provided in vehicles, by exerting less force and in a more silent manner.

Description

LOCKING MECHANISM FOR A SLIDING DOOR TECHNICAL FIELD

PRIOR ART

Today, as a result of rapid improvements in automotive technology, improvements occur in vehicle door systems. Sliding doors are used in various vehicles including passenger cars and big vehicles like minibus, bus. Sliding doors bear various advantages for the users. The most important advantages of sliding doors are that they are more practical when compared with classical doors, they need less force and they can be used for a long time. Particularly in commercial vehicles, in some cases, the vehicle door shall stay open in full capacity. This process step cannot be provided by classical doors and, sliding doors are preferred in automotive sector because of such advantages. The realization of these actions is directly related to the locking mechanism used in sliding doors.

Each item provided in vehicles is subjected to a very big temperature range (-40/+80 degrees) and to humidity and to environmental conditions (dust, water and similar). Moreover, the safety of the driver and the passengers always bear priority in all components of the automobile. Therefore, the design and concept of locking mechanisms for sliding door system shall be realized with specific characteristics. Sliding doors shall be able to pass to the maximum open position, they shall not be affected by unfavorable environmental conditions (humidity, dust and similar), and they shall be able to be opened and closed in case of any unfavorable condition. Moreover, they shall have a noise-free system for providing comfort. Therefore, by various companies or individuals, improvements, researches and developments are tried to be realized which will provide added value and which will attract attention of users or sector related to locking mechanisms. The most frequent negation, observed in locking mechanisms for sliding door in the present art, is the need to consume great amount of force for closing or opening the sliding doors. Another negation is that sliding door creates sound and noise during operation. Moreover, locking mechanisms used in some inventions cannot provide the sliding doors to stay open in full capacity.

In the literature, there is the patent application with application number KR20140108505 and with title "A damping apparatus for a slider". In said invention, a damping apparatus for a slider is disclosed. According to the invention, the damping apparatus includes: a case fixed to a fixed body including a door frame of a sliding door and having a guide groove formed to guide the movements of a hook and a damper housing portion formed therein; a damper disposed in the damper housing portion of the case; the hook mounted on the front end of a rod of the damper and which a lock lever fixed to the slider of the sliding door is inserted into; and an extension spring whose one end is fixed to the hook and the other end is fixed to the case to conduct the returning operation of the damper, wherein the case is open in both directions which the damper housing portion faces. Said apparatus is in general used in furniture having sliding door and drawer.

In literature, there is the patent application with application number US4762348 and with title "An electric door lock system". In said application, a door lock system is described for a motorized vehicle and more particularly an automotive door lock system is described which is electrically controlled.

The applicant has filed patent application with number TR 2017/05069 for the invention which will be a solution for the abovementioned problems. In this application, a locking mechanism is described which has a main body forming the main structure and where the related parts are positioned, a movement element providing forward-backward movement and a spring which stores energy and which forms pushing and drawing force; where said locking mechanism which provides opening and closing of sliding doors, provided in vehicles, by exerting less force and which provides fixation of the position of sliding doors at a completely open position. Said locking mechanism comprises a lock element which keeps the sliding door, positioned inside the main body, at the open position and which functions as a lock, and a dampening element positioned between the springs and which prevents impacts by dampening the energy in case the sliding door is opened and which forms pushing drive during closing of the open sliding door.

In order to make said novel mechanism more effective which brings pluralities of advantages to the related technical field, additional improvements are required in the related technical field. BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to a locking mechanism for a sliding door, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.

An object of the present invention is to provide opening and closing of sliding doors, provided in vehicles, by exerting less force and to provide fixing of sliding doors in the completely open position.

Another object of the present invention is to provide a noise-free solution for users.

Another object of the present invention is to provide a locking mechanism protected from environmental effects and from dirt.

Another object of the present invention is to minimize the damage/noise created by closing/opening of the doors by means of exerting excessive force and to absorb the occurring high energy. In order to realize all of the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention relates to a locking mechanism for providing the sliding door, existing in vehicles, to be opened/closed by exerting less force and to be fixed at the completely open position; said locking mechanism comprising a lock element having at least one lock housing to which said carrier protrusion engages by making rotational movement in a lock pin axis by means of pushing at least one carrier protrusion provided in the roller carrier mechanism which advances inside at least one rail and which moves the door; a body where said lock element is connected; at least one spring whose one end is connected to said body and whose other end is connected to said lock element; and at least one piston connected to said body from one end thereof. Accordingly, said piston, positioned on at least one piston bearing, is configured to be tightened after said lock element displaces a predetermined distance. Thus, the sliding doors provided in vehicles can be opened and closed by exerting less force and besides, the sliding doors can be fixed at the completely open position. In a probable embodiment of the present invention, in the preferred first version of the present invention, said lock element is configured to pass to a resting position and to rest onto said piston after said lock element displaces a predetermined distance. Thus, the door is fixed in the open position.

In a probable embodiment of the present invention, in the preferred second version of the present invention, a protective cover is provided which has at least one connection channel wherein said body is placed in order to provide movement of said body in the door opening and closing direction. Thus, the door is fixed in the open position.

In a probable embodiment of the present invention, in the preferred second version of the present invention, at least one piston resting surface is provided on said protective cover where said piston is rested for providing tightening thereof.

In a probable embodiment of the present invention, after said carrier protrusion is engaged to said lock housing, in order to provide stopping of the lock element which begins movement by means of pushing of said carrier mechanism, at least one stopper surface, which has a second safety structure, is provided in the door opening direction. Thus, thanks to said stopper surface, when there is any problem in the piston, the locked roller carrier mechanism is stopped. In a probable embodiment of the present invention, in the preferred first version of the present invention, said stopper surface is connected to the body in the door opening direction.

In a probable embodiment of the present invention, in the preferred second version of the present invention, said stopper surface is connected to the protective cover in the door opening direction.

In a probable embodiment of the present invention, in case said lock element advances in the door opening direction without said carrier protrusion engaging to said lock housing, said lock element comprises at least one bending gap which provides bending at the end thereof in the door closing direction in order to provide passage of said roller carrier mechanism through said lock element. Thus, the door is locked in the open position.

In a probable embodiment of the present invention, in the preferred first version of the present invention, in order to adjust the distance of bending, at least one bending stopper, which is stopped to the lock housing, is provided at the end of said lock element existing at said bending gap side. In a probable embodiment of the present invention, in the preferred first version of the present invention, at least one rear cover is provided which can move forwardly-backwardly by means of the movement of said lock element and which comprises at least one connection protrusion connected to at least one hook provided on said lock element and positioned between the lock element and the stopper surface.

In a probable embodiment of the present invention, a passage opening is provided between said piston and said stopper surface and in said body structure, in order to provide forward and backward movement of said rear cover which moves by means of the movement of said lock element.

In a probable embodiment of the present invention, in the preferred first version of the present invention, on the surface of said main body in the door closing direction, at least one front cover is provided which comprises a resting end where said lock element is rested in the closed position of the door and which allows movement of said lock element as said resting end passes to free position when the door is in open position. Thus, in order to provide rotational movement of the lock element in a lock pin axis; dust, water and similar items are prevented from passing into said body through the opening. In a probable embodiment of the present invention, in the preferred second version of the present invention, said locking mechanism has a thin structure so as to be positioned between the vehicle body and the rail.

In a probable embodiment of the present invention, in the preferred second version of the present invention, on said protective cover, at least one lock passage opening is provided for providing movement of said lock element.

In a probable embodiment of the present invention, in the preferred second version of the present invention, said protective cover, whereon the assembly holes are provided, comprises fixation bushing and screw for providing connection to the vehicle body by means of said rail.

In a probable embodiment of the present invention, in the preferred second version of the present invention, a hiding cover is positioned on said protective cover in order to prevent said locking mechanism from being seen from outside. BRIEF DESCRIPTION OF THE FIGURES

In Figure 1 , a representative perspective view of the first version of the subject matter locking mechanism for a sliding door is given.

In Figure 2, a representative perspective view of the first version of the subject matter locking mechanism for a sliding door in dismantled form is given.

In Figure 3, a representative perspective view of the first version of the subject matter locking mechanism for a sliding door in mounted form onto the vehicle body is given.

In Figure 4, a representative lateral cross sectional view of the first version of the subject matter locking mechanism for a sliding door where the locking mechanism is in free position when the door is closed is given.

In Figure 5, a representative lateral cross sectional view of the first version of the subject matter locking mechanism for a sliding door where the lock element is rested to the piston is given. In Figure 6, a representative lateral cross sectional view of the first version of the subject matter locking mechanism for a sliding door where the door is completely open is given.

In Figure 7, a representative lateral view is given which belongs to the form of the roller carrier mechanism advancing by means of bending the lock element in order to provide locking of the door in open position, in case the lock element advances in the door opening direction without the carrier protrusion engaging to the lock housing in the subject matter locking mechanism for a sliding door.

In Figure 8, a representative lateral cross sectional view of the front cover in the first version of the subject matter locking mechanism for a sliding door where the door is in closed position is given.

In Figure 9, a representative lateral view of the front cover in the first version of the subject matter locking mechanism for a sliding door where the door is in open position is given.

In Figure 10, a representative rear perspective view of the first version of the subject matter locking mechanism for a sliding door is given. In Figure 1 1 a, a representative perspective view of the second version of the subject matter locking mechanism for a sliding door where the locking mechanism is positioned on the vehicle body is given. In Figure 1 1 b, a representative zoomed perspective view of the second version of the subject matter locking mechanism for a sliding door where the locking mechanism is positioned on the vehicle body is given.

In Figure 1 1 c, a representative zoomed perspective view of the second version of the subject matter locking mechanism for a sliding door from the outside of the vehicle where the locking mechanism is on the rail is given.

In Figure 12, a representative perspective view of the assembled form of the second version of the subject matter locking mechanism for a sliding door is given.

In Figure 13, a representative perspective view of the dismantled form of the second version of the subject matter locking mechanism for a sliding door is given.

In Figure 14, a representative perspective view of the second version of the subject matter locking mechanism for a sliding door where the locking mechanism is connected onto the rail is given.

In Figure 15, a representative perspective view of the second version of the subject matter locking mechanism for a sliding door where the locking mechanism is positioned between the rail and the vehicle body is given.

In Figure 16, a representative lateral cross sectional view of the second version of the subject matter locking mechanism for a sliding door where the door is closed is given. In Figure 16a, a representative cross sectional view of the second version of the subject matter locking mechanism for a sliding door where the body and the protective cover are connected is given.

In Figure 17, a representative lateral cross sectional view of the form of the piston in the resting position while the door is being opened in the second version of the subject matter locking mechanism for a sliding door is given. In Figure 18, a representative lateral cross sectional view of the second version of the subject matter locking mechanism for a sliding door where the door is in completely open position is given. In Figure 19, in the second version of the subject matter locking mechanism for a sliding door, a representative lateral view of the form where the roller carrier mechanism bends the lock element and the roller carrier mechanism advances in order to provide locking of the door in open position in case the lock element advances in the door opening direction without the engagement of the carrier protrusion to the lock housing is given.

In Figure 20, a representative bottom view of the second version of the subject matter locking mechanism for a sliding door where the door is in closed position is given.

In Figure 21 , a representative bottom view of the second version of the subject matter locking mechanism for a sliding door when the door is completely open is given.

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter locking mechanism (100) for a sliding door is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

The present invention relates to a locking mechanism (100) for providing fixing of the sliding door in open position as desired by the user and for providing opening/closing of the sliding door, provided in vehicles, by exerting less force and in a more silent manner. In sliding doors, there is at least one carrier protrusion (71 ) on the roller carrier mechanism (70) which advances inside at least one rail and which provides movement to the sliding door. In order to provide locking of the sliding door in open position, a lock pin (22) makes rotational movement in its axis as said carrier protrusion (71 ) pushes, and there is a lock element (20) comprising at least one lock housing (21 ) wherein said carrier protrusion (71 ) engages. Said lock element (20) is connected onto a body (10). In the body (10) structure, there is at least one spring (60) whose one end is connected to said body (10) and whose one end is connected to said lock element (20). Again in said body (10) structure, there is at least one piston (50) positioned in at least one piston bearing (51 ) and whose one end is connected to said body (10) and whose other end is in free position (I) such that said lock element (20) is rested after moving for a predetermined amount. In Figure 3, a representative perspective view of the first version of the subject matter locking mechanism for a sliding door (100) in mounted form onto the vehicle body (80) is given. Said locking mechanism (100) can be used at the lower rail (81 ) and at similar places on the vehicle body (80). As can be seen in Figure 4, said piston (50) provided in said locking mechanism (100) is positioned on at least one piston bearing (51 ) provided in said body (10) structure in order to provide balanced positioning of said piston (50). Said piston (50) is connected to the body (10) from one end thereof. The other end of said piston (50) is in free position (I). When the door is in closed position, there is a predetermined distance between said piston (50) and said lock element (20). In the preferred embodiment of the present invention, said distance is 5 mm. During passage of the sliding door to open position, the carrier protrusion (71 ), provided in said roller carrier mechanism (70), is engaged and locked to the lock housing (21 ) provided in said lock element (20). Afterwards, as can be seen in Figure 5, the deceleration and fixation of the speed of the roller carrier mechanism (70) are provided as the lock element (20) engages and tightens the piston (50) in resting position (II). Thus, the pushing force of the roller carrier mechanism (70) is dampened and stopped. Thanks to the distance between said piston (50) and said lock element (20), after said carrier protrusion (71 ) engages to the lock housing (21 ) and is locked to the lock housing (21 ), said carrier protrusion (71 ) is fixed by means of the piston (50). In Figure 7, a representative lateral view is given which belongs to the form of the roller carrier mechanism (70) advancing by means of bending the lock element (20) in order to provide locking of the door in open position, in case the lock element (20) advances in the door opening direction without the carrier protrusion (71 ) engaging to the lock housing (21 ) in the subject matter locking mechanism (100) for a sliding door. In case said lock element (20) advances in the door opening direction without said carrier protrusion (71 ) engaging to said lock housing (21 ) for any reason, there is at least one bending gap (24) which provides bending at the end of said lock element (20) in the direction of the door closing direction in order to provide locking of the door in the open position. Moreover, there is at least one bending stopper (25) rested to said lock housing (21 ) in order to adjust the distance of bending in the lock element (20). Thanks to said bending gap (24), if the lock element (20) advances in the door opening direction without said carrier protrusion (71 ) engaging to said lock housing (21 ), the door is advanced to open position and said roller carrier mechanism (70) bends said lock element (20) from the bending gap side, and the carrier protrusion (71 ) is engaged to the lock housing (21 ). Thus, the door is locked in the open position.

In said locking mechanism (100), there is a stopper surface (12) for providing a second safety structure in order to stop the movement of the roller carrier mechanism (70), engaged and locked to said lock housing (21 ), in the door opening direction. Said stopper surface (12) is positioned in the door opening direction on the body (10). Thanks to said stopper surface (12), the over-tightening of the piston (50) as a result of rapid movement of the sliding door is prevented, and the roller carrier mechanism (70), which is locked when there is any problem in the piston (50), is stopped.

In said locking mechanism (100) positioned on the vehicle body (80) in an exposed manner to the outer medium, there is at least one front cover (30) and at least one rear cover (40) in order to prevent passage of dust, water and similar items which may damage said piston (50) provided in said body (10) structure. Said rear cover (40) is positioned on said body (10) surface and between the lock element (20) and the stopper surface (12). On said rear cover (12), at least one connection protrusion (41 ) is connected to at least one hook (23) provided on said lock element (20). Thus, said rear cover (40) can move in a compliant manner to the forward, backward movement of said lock element (20). As can be seen in Figure 6, in order to easily provide the forward and backward movement of said rear cover (40), there is a passage opening (1 1 ) provided in said body (10) structure and between said piston (50) and said stopper surface (12). Said rear cover (40) advances inside said passage opening (1 1 ) by means of movement of the lock element (20) in the door opening and door closing directions.

In Figure 8 and 9, the representative lateral views of the front cover (30) of the subject matter locking mechanism (100) for a sliding door where the door is in closed position and where the door is in open position are given. On the surface of said body (10) in the door closing direction, there is a front cover (30) for preventing passage of dust, water and similar items which may damage said piston (50) provided inside said body (10) through the opening provided for providing rotational movement in a lock pin (22) axis of the lock element (20). At said front cover (30), there is a resting end (31 ) where said lock element (20) is rested when the door is in closed position. As the sliding door passes to open position, as said lock element (20) begins rotational movement in said lock pin (22) axis, said resting end (31 ) passes to the free position. As said resting end (31 ) passes to free position, said front cover (30) diverges from the body (10) surface and provides movement of said lock element (20).

In Figure 1 1 a, 1 1 b and 1 1 c, the representative perspective views of the second version of the subject matter locking mechanism (100) for a sliding door where the locking mechanism is positioned on the vehicle body (80) are given. Said locking mechanism (100) is used in the intermediate rail (81 ) and in similar places on the vehicle body (80). As can be seen in Figure 15, said locking mechanism (100) is positioned between the vehicle body (80) and the rail (81 ).

In Figure 16, a representative lateral cross sectional view of the second version of the subject matter locking mechanism for a sliding door where the door is closed is given. On said body (10), a lock element (20) is provided connected by means of a lock pin (22) and which can make rotational movement in said lock pin (22) axis. Again at the locking mechanism (100), there is at least one spring (60) whose one end is connected to said body (10) and whose other end is connected to said lock element (20). At least one piston (50), positioned in at least one piston bearing (51 ) provided on said body (10), is connected to the body (10) from one end, and the other end of said piston (50) stays in the free position (I).

On the upper surface of said locking mechanism (100), there is a protective cover (90) for protecting said locking mechanism (100) from dust, water and similar external effects. As can be seen in Figure 13, on the surface of said protective cover (90), there is a lock passage opening (91 ) for providing movement of said lock element (20). As can be seen in Figure 16a, there is connection channel (92) on at least one lateral surface of said protective cover (90) for connection of said body (10) and for providing movement in the door opening/closing direction.

The assembly of said locking mechanism (100) between the vehicle body and the rail is provided by connecting by means of assembly materials like fixation bushing (94) and screw (941 ) to the assembly holes (93) provided on the protective cover (90). As can be seen in Figure 15, said locking mechanism (100) has a thin structure in a manner occupying a small amount of space between the vehicle body (80) and the rail (81 ).

As can be seen in Figure 16, in said second version of the present invention, when the sliding door is in closed position, the free end of said piston (50), positioned in said piston bearing (51 ), stays in the free position (I) in a manner providing movement of said lock element (20) at a predetermined amount. In order to provide the movement of said lock element (20), there is a predetermined distance between a piston resting surface (95), provided on said protective cover (90), and said piston (50). In the preferred embodiment of the present invention, said distance is 5 mm. As can be seen in Figure 17, the carrier protrusion (17) provided on the roller carrier mechanism (70) engages to the lock housing (21 ) as a result of rotation of said lock element (20) in said lock pin (22) axis such that the sliding door is opened, and the roller carrier mechanism (70) is locked. As a result of the pushing force of the roller carrier mechanism (70) in the door opening direction, said body (10) where the lock element (20) is connected moves in the door opening direction by means of the connection channel (92) provided at said protective cover (90). By means of the movement of said body (10) in the door opening direction, said piston (50) is rested onto the piston resting surface (95) provided on said protective cover (90), and it passes to the resting position (II). Thus, said piston (50) is tightened and the lock element (20) is fixed.

In said locking mechanism (100), there is a stopper surface (12) for providing a second safety structure in order to stop the movement of said roller carrier mechanism (70), engaging and locking to said lock housing (21 ), in the door opening direction. Said stopper surface (12) is positioned in the door opening direction in a connected manner to the protective cover (90). Thanks to said stopper surface (12), stoppage of the roller carrier mechanism (70), locked as a result of rapid movement of the sliding door, is facilitated.

In Figure 19, in the subject matter locking mechanism (100) for a sliding door, a representative lateral view of the form where the roller carrier mechanism (70) bends the lock element (20) and the roller carrier mechanism (70) advances in order to provide locking of the door in open position in case the lock element (20) advances in the door opening direction without the engagement of the carrier protrusion (71 ) to the lock housing (21 ) is given. As in the first version, in case said lock element (20) advances in the door opening direction without engagement of said carrier protrusion (71 ) to said lock housing (21 ) for any reason, there is at least one bending gap (24) which provides bending at the end of said lock element (20) in the door closing direction in order to provide locking of the door in open position. Thus, if the lock element (20) advances in the door opening direction without engagement of said carrier protrusion (71 ) to said lock housing (21 ), in order to lock the door in the open position, said roller carrier mechanism (70) bends said lock element (20) from the bending gap side and the carrier protrusion (71 ) is engaged to the lock housing (21 ).

As seen in Figure 1 1 b, in order to prevent said locking mechanism (100) from being seen from outside, the hiding cover (96) is connected onto said protective cover (90).

Thus, a locking mechanism (100) is provided which provides the sliding door in vehicles to be opened/closed by exerting small amount of force and to stay in open position and protected from environmental effects and from dirt. The protection scope of the present invention is set forth in the annexed Claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.

REFERENCE NUMBERS

100. Locking mechanism

10. Body

1 1 . Passage opening

12. Stopper surface 20. Lock element

21 . Lock housing

22. Lock pin 23. Hook

24. Bending gap

25. Bending stopper 30. Front cover

31 . Resting end

40. Rear cover

41 . Connection protrusion 50. Piston

51 . Piston bearing (I) Free position

(II) Resting position

60. Spring

70. Roller carrier mechanism 71 . Carrier protrusion 80. Vehicle body

81 . Rail

90. Protective cover

91 . Lock passage opening

92. Connection channel

93. Assembly hole 94. Fixation bushing

941 . Screw

95. Piston resting surface

96. Hiding cover

Claims

A locking mechanism (100) for providing the sliding door, existing in vehicles, to be opened/closed by exerting less force and to be fixed at the completely open position, said locking mechanism (100) comprising a lock element (20) having at least one lock housing (21 ) to which said carrier protrusion (71 ) engages by making rotational movement in a lock pin (22) axis by means of pushing at least one carrier protrusion (71 ) provided in the roller carrier mechanism (70) which advances inside at least one rail (81 ) and which moves the door; a body (10) where said lock element (20) is connected; at least one spring (60) whose one end is connected to said body (10) and whose other end is connected to said lock element (20); and at least one piston (50) connected to said body (10) from one end thereof, characterized in that said piston (50), positioned on at least one piston bearing (51 ), is configured to be tightened after said lock element (20) displaces a predetermined distance.

A locking mechanism (100) according to claim 1 , wherein said lock element (20) is configured to pass to a resting position (II) and to rest onto said piston (50) after said lock element (20) displaces a predetermined distance.

A locking mechanism (100) according to claim 1 , wherein a protective cover (90) is provided which has at least one connection channel (92) wherein said body (10) is placed in order to provide movement of said body (10) in the door opening and closing direction.

A locking mechanism (100) according to claim 3, wherein at least one piston resting surface (95) is provided on said protective cover (90) where said piston (50) is rested for providing tightening thereof.

A locking mechanism (100) according to claim 2 or 3, wherein after said carrier protrusion (71 ) is engaged to said lock housing (21 ), in order to provide stopping of the lock element (20) which begins movement by means of pushing of said carrier mechanism (70), at least one stopper surface (12), which has a second safety structure, is provided in the door opening direction.

A locking mechanism (100) according to claim 2 or 5, wherein said stopper surface (12) is connected to the body (10) in the door opening direction.

7. A locking mechanism (100) according to claim 3 or 5, wherein said stopper surface (12) is connected to the protective cover (90) in the door opening direction.

8. A locking mechanism (100) according to claim 2 or 3, wherein in case said lock element (20) advances in the door opening direction without said carrier protrusion

(71 ) engaging to said lock housing (21 ), said lock element (20) comprises at least one bending gap (24) which provides bending at the end thereof in the door closing direction in order to provide passage of said roller carrier mechanism (70) through said lock element (20).

9. A locking mechanism (100) according to claim 2 or 8, wherein in order to adjust the distance of bending, at least one bending stopper (25), which is stopped to the lock housing (21 ), is provided at the end of said lock element (20) existing at said bending gap (24) side.

10. A locking mechanism (100) according to claim 2, wherein at least one rear cover (40) is provided which can move forwardly-backwardly by means of the movement of said lock element (20) and which comprises at least one connection protrusion (41 ) connected to at least one hook (23) provided on said lock element (20) and positioned between the lock element (20) and the stopper surface (12).

11. A locking mechanism (100) according to claim 2 or 10, wherein a passage opening (1 1 ) is provided between said piston (50) and said stopper surface (12) and in said body (10) structure, in order to provide forward and backward movement of said rear cover (40) which moves by means of the movement of said lock element (20).

12. A locking mechanism (100) according to claim 2, wherein on the surface of said main body (10) in the door closing direction, at least one front cover (30) is provided which comprises a resting end (31 ) where said lock element (20) is rested in the closed position of the door and which allows movement of said lock element (20) as said resting end (31 ) passes to free position when the door is in open position.

13. A locking mechanism (100) according to claim 3, wherein said locking mechanism (100) has a thin structure so as to be positioned between the vehicle body (80) and the rail (81 ).

14. A locking mechanism (100) according to claim 3, wherein on said protective cover (90), at least one lock passage opening (91 ) is provided for providing movement of said lock element (20). 15. A locking mechanism (100) according to claim 3 or 13, wherein said protective cover (90), whereon the assembly holes (93) are provided, comprises fixation bushing (94) and screw (941 ) for providing connection to the vehicle body (80) by means of said rail. 16. A locking mechanism (100) according to claim 3, wherein a hiding cover (96) is positioned on said protective cover (90) in order to prevent said locking mechanism (100) from being seen from outside.