Elastic unlocking mechanism of front-back adjusting device for long sliding rail of automobile seat

Abstract

The utility model relates to an elastic unlocking mechanism of an automobile seat long sliding rail front-back adjusting device, which comprises an upper rail, the upper rail comprises an n-shaped upper main body, the lower end parts of the left and right sides of the upper main body are bent outwards to form lower bent parts, and the lower bent parts of the left and right sides are bent upwards to form sliding plates; a locking assembly is arranged on the outer wall of one side wall of the upper body, and an elastic supporting assembly is arranged on the inner wall of the other side wall of the upper body. The locking mechanism comprises a locking frame installed on the outer wall of one side wall of the upper body and a locking piece hinged to the locking frame, and the locking piece is matched with an elastic supporting assembly to achieve unlocking or locking action. According to the invention, the complexity of the structure can be effectively improved, and the manufacturing cost and the assembly complexity are reduced.

Description

Technical Field

[0001] The present application relates to the field of a front-to-back adjustment device for a long slide rail of a car seat, and in particular to an elastic unlocking mechanism of the front-to-back adjustment device for a long slide rail of a car seat. Background Art

[0002] Car seats are essential supporting facilities in cars, and when using car seats, what you need to use is the seat adjustment function. Our common seat front and rear adjustment function, whether it is electric adjustment or manual adjustment, most of them will use seat slides.

[0003] Usually, the seat slide includes an upper rail and a lower rail; the upper rail includes an N-shaped upper body, the lower ends of the left and right sides of the upper body are bent outward to form lower bent parts, and the lower bent parts on the left and right sides are bent upward to form a slide plate; the lower rail includes a lower body, and tracks are respectively arranged on the left and right sides of the lower body, the track includes outer plates formed by bending upwards on the left and right sides of the lower body, an arc-shaped transition section connected to the upper end of the outer plate and transitioning in an arc shape to the inside, an upper bent plate connected to the upper end of the arc-shaped transition section, and an inner plate formed by bending downwards at the inner end of the upper bent plate, the inner plate is located between the slide plate on the corresponding side and the upper body, and there is a movable gap between the inner plate and the lower bent part on the corresponding side, and a locking mechanism for front and rear adjustment is installed between the upper rail and the lower rail.

[0004] However, the inventor believes that the traditional locking structure is relatively complex and has relatively more parts and components, which makes the manufacturing cost relatively high and the complexity of assembly is correspondingly increased. Utility Model Content

[0005] In order to effectively improve the complexity of the structure and reduce manufacturing costs and assembly complexity.

[0006] The present application provides an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat, which adopts the following technical solution:

[0007] The invention discloses an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat, comprising an upper rail, the upper rail comprising an upper main body in an N shape, the lower end portions on both sides of the upper main body are bent outward to form lower bent portions, the lower bent portions on both sides are bent upward to form slide plates, a locking assembly is arranged on the outer wall of one side wall of the upper main body, and an elastic supporting assembly is arranged on the inner wall of the other side wall; the locking mechanism comprises a locking frame installed on the outer wall of one side wall of the upper main body, and a locking plate hinged to the locking frame, the locking plate is cooperated with the elastic supporting assembly to realize unlocking or locking action.

[0008] Optionally, the locking plate includes a pressing portion, a hinge portion, an abutment portion cooperating with the elastic support assembly, and a locking portion which are connected in sequence. The pressing portion extends in a direction away from the hinge portion, the abutment portion extends into the upper main body and abuts against the elastic support assembly, and the locking portion is bent in a direction away from the abutment portion and passes through the corresponding upper main body side wall.

[0009] Optionally, a corresponding side wall of the upper body through which the locking portion passes is provided with a plurality of through holes, and an end of the locking portion is provided with a plurality of locking teeth, and the locking teeth pass through the through holes.

[0010] Optionally, the elastic support assembly includes an elastic support member and a fixing member, the elastic support member is arranged in the upper main body, the fixing member is installed at two opposite ends or one end of the upper rail, and the end of the elastic support member is locked and installed in cooperation with the fixing member on the corresponding side.

[0011] Optionally, the elastic support member includes a fixing portion fixedly mounted on the inner wall of the other side wall of the upper main body, an elastic contact portion arranged on the top of the contact portion, and a locking portion installed and locked in cooperation with the fixing member. The fixing portion and the elastic contact portion are connected by a first elastic connecting plate which is inclined toward the direction of the corresponding end of the upper rail. There is a certain distance between the elastic contact portion and the inner wall of the corresponding side wall. Both ends of the elastic contact portion are connected to the locking portion on the corresponding side by a second elastic connecting plate. The second elastic connecting portion is inclined toward the direction of the corresponding side wall.

[0012] Optionally, the elastic support member includes an elastic resistance portion arranged on the top of the abutment portion, and a locking portion which is locked and installed in cooperation with the fixing member. There is a certain distance between the elastic resistance portion and the inner wall of the corresponding side wall. Both ends of the elastic resistance portion are connected to the locking portion of the corresponding side through a third elastic connecting plate. The third elastic connecting portion is inclined toward the direction of the corresponding side wall.

[0013] Optionally, the elastic support member includes an elastic interference portion arranged on the top of the abutting portion, a locking portion which is locked and installed in cooperation with the fixing member, and an elastic support portion which is arranged at an angle. There is a certain distance between the elastic interference portion and the inner wall of the corresponding side wall. One end of the elastic interference portion is connected to the locking portion on the corresponding side by a fourth elastic connecting plate. The fourth elastic connecting plate is inclined toward the direction of the corresponding side wall. The other end of the elastic interference portion is connected to the elastic support portion, and the other end of the elastic support portion is locked and installed with the inner wall of the corresponding side wall.

[0014] Optionally, the fixing member includes an end cover installed in cooperation with the end of the upper rail, a fixing arm installed on the inner side of the end cover and extending toward the corresponding side locking portion, a first locking hole is provided at the end of the fixing arm, and a first locking plate is provided at the end of the locking portion to cooperate with the first locking hole.

[0015] Optionally, a second locking hole is provided on the inner wall of the upper main body on the corresponding side of the locking part, and a second locking piece protruding toward the corresponding side wall is provided at a position corresponding to the locking part and the second locking hole, and the second locking piece is embedded in the second locking hole at the corresponding position.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: through the structural design of the locking mechanism and the articulation of the locking plate and the lock bracket, the number of parts of the locking assembly is directly reduced, and the assembly and manufacturing are also more time-saving and labor-saving. At the same time, the elastic support assembly is used to assist in unlocking and locking the locking assembly to ensure the reliability of structural coordination, reduce some unnecessary parts processing, effectively improve the complexity of the structure, and at the same time reduce the manufacturing cost and assembly complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 1 of the present application.

[0018] Figure 2 It is a schematic diagram of the upper rail structure of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 1 of the present application.

[0019] Figure 3 This is the second structural schematic diagram of the elastic unlocking mechanism of the long slide rail front and rear adjustment device of a car seat in Example 1 of the present application.

[0020] Figure 4 It is a schematic diagram of the locking plate structure of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 1 of the present application.

[0021] Figure 5 It is a schematic diagram of the structure of the elastic support member of the elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat in Example 1 of the present application.

[0022] Figure 6 It is a schematic cross-sectional structure diagram of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat according to Example 1 of the present application.

[0023] Figure 7 It is a schematic diagram of the fixing structure of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 1 of the present application.

[0024] Figure 8 One of the structural schematic diagrams of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 2 of the present application.

[0025] Fig. 9 It is a schematic diagram of the upper rail structure of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 2 of the present application.

[0026] Fig.10 This is the second structural schematic diagram of the elastic unlocking mechanism of the long slide rail front and rear adjustment device of a car seat in Example 2 of the present application.

[0027] Fig.11 It is a schematic diagram of the structure of the elastic support member of the elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat in Example 2 of the present application.

[0028] Fig.12 This is one of the structural schematic diagrams of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 3 of the present application.

[0029] Fig.13 It is a schematic diagram of the upper rail structure of an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat in Example 3 of the present application.

[0030] Fig.14 This is the second structural schematic diagram of the elastic unlocking mechanism of the long slide rail front and rear adjustment device of a car seat in Example 3 of the present application.

[0031] Fig.15 It is a schematic diagram of the structure of the elastic support member of the elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat in Example 3 of the present application.

[0032] Explanation of the reference numerals: 1. upper body; 2. lower bending part; 3. slide plate; 4. locking frame; 5. pressing part; 6. hinge part; 7. abutment part; 8. locking part; 9. through hole; 10. locking tooth; 11. fixing part; 12. elastic abutment part; 13. locking part; 14. first elastic connecting plate; 15. second elastic connecting plate; 16. cover body; 17. connecting arm; 18. base body; 19. mounting hole; 20. mounting substrate; 21. arc-shaped supporting plate; 22. connecting plate; 23. supporting protrusion; 24. fixing substrate; 25. first locking hole; 26. first locking piece; 27. extension section; 28. inclined section; 29. ​​second locking hole; 30. second locking piece; 31. third elastic connecting plate; 32. elastic supporting part; 33. fourth elastic connecting plate; 34. third locking piece; 35. third locking hole. DETAILED DESCRIPTION

[0033] The following is combined with Figures 1 to 15 This application is described in further detail.

[0034] Example 1

[0035] Reference Figures 1 to 7 Embodiment 1 of the present application discloses an elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat.

[0036] Reference Figure 1 , 2 , including an upper rail, the upper rail includes an n-shaped upper main body 1, the lower end portions on both sides of the upper main body 1 are bent outward to form lower bending portions 2, the lower bending portions 2 on both sides are bent upward to form a slide plate 3, and the outer wall of one side wall of the upper main body 1 is provided with a locking component, and the inner wall of the other side wall is provided with an elastic support component.

[0037] Reference Figures 3 to 5 The locking assembly mentioned above includes a locking frame 4 installed on the outer wall of one side wall of the upper main body 1, a locking piece hinged to the locking frame 4, and the locking piece is unlocked or locked by the elastic support assembly. The locking piece includes a pressing part 5, a hinge part 6, an abutting part 7 cooperating with the elastic support assembly, and a locking part 8 connected in sequence. The pressing part 5 extends in a direction away from the hinge part 6, and the abutting part 7 extends in the upper main body 1 and abuts against the elastic support assembly. The locking part 8 is bent in a direction away from the abutting part 7 and penetrates the corresponding side wall of the upper main body 1. The mutual locking of the upper rail and the lower rail requires the locking piece to cooperate with the upper rail to lock relative to the lower rail. A plurality of through holes 9 are provided on the corresponding side wall of the upper main body 1 for the locking part 8 to penetrate, and a plurality of locking teeth 10 are provided at the end of the locking part 8. The locking teeth 10 penetrate the through holes 9, and the locking holes penetrate the through holes 9 and then lock with the lower rail.

[0038] Reference Figure 6 The elastic support assembly mentioned above includes an elastic support member and a fixing member, the elastic support member is arranged in the upper body 1, the fixing member is installed at the two opposite ends of the upper rail or one of the ends, and the end of the elastic support member is locked and installed in cooperation with the fixing member on the corresponding side; wherein the elastic support member includes a fixing portion 11 fixedly installed on the inner wall of the other side wall of the upper body 1, an elastic contact portion 12 arranged on the top of the contact portion 7, and a locking portion 13 locked and installed in cooperation with the fixing member, the fixing portion 11 and the elastic contact portion 12 are connected by a first elastic connecting plate 14 inclined toward the corresponding end of the upper rail, there is a certain distance between the elastic contact portion 12 and the inner wall of the corresponding side wall, both ends of the elastic contact portion 12 are connected to the locking portion 13 on the corresponding side by a second elastic connecting plate 15, the second elastic connecting portion is inclined toward the corresponding side wall, the design of the first elastic connecting plate 14 and the second elastic connecting plate 15 can enhance the elastic strength of the elastic contact portion 12, and can also play a role in connecting the fixing portion 11 and the locking portion 13.

[0039] Reference Figure 7In this embodiment, the fixing member includes an end cover and a fixing arm that can be installed in cooperation with the end of the upper rail. The end cover includes a cover body 16 and mounting bases symmetrically arranged on opposite sides of the cover body 16. Connecting arms 17 are respectively arranged at the lower positions of the opposite sides of the cover body 16. The connecting arms 17 are respectively connected to the lower sides of the mounting bases on the corresponding sides. The fixing arm is installed on the inner end surface of the cover body 16 and close to one of the mounting bases.

[0040] The above-mentioned mounting base includes a base body 18 and a stabilizing auxiliary support seat. The base body 18 is provided with a mounting hole 19 for mounting on the end of the upper rail along the length direction of the fixed arm, and the stabilizing auxiliary support seat is arranged on the outer side wall of the base body 18; wherein, the stabilizing auxiliary support seat includes a mounting substrate 20, an arc-shaped support plate 21, and a connecting plate 22. The end of the arc-shaped support plate 21 on the same side as the cover body 16 is fixedly connected to the mounting substrate 20, and the other end is connected to the connecting plate 22. The connecting plate 22 is installed on the side of the mounting substrate 20 away from the cover body 16; after the upper rail and the lower rail are installed with each other, the mounting base can abut against the inner wall of the lower rail, which can effectively enhance the stability and smoothness of the fit between the upper and lower rails.

[0041] In this embodiment, the connecting plate 22 is connected to the arc-shaped support plate 21 by an arc-shaped transition section, and the distance between the arc-shaped support plate 21 and the mounting base plate 20 gradually increases in the direction away from the cover body 16. A support protrusion 23 with a fan-shaped cross-section is provided on the side of the mounting base plate 20 facing the arc-shaped support plate 21. The highest point of the support protrusion 23 does not contact the arc-shaped support plate 21. The support protrusion 23 is provided at a position of the mounting base plate 20 close to the side of the connecting plate 22. After such a design, the structural reliability of the mounting base when it is squeezed can be improved, and the support protrusion 23 can ensure that when the upper rail and the lower rail shake, the arc-shaped support plate 21 is prevented from being damaged due to excessive deformation, thereby better increasing the reliability of the structure. At the same time, a fixing base plate 2 is provided at the end of the fixing arm away from the cover body 16. 4. The thickness of the fixed base plate 24 is less than that of the fixed arm. A first locking hole 25 is provided on the fixed base plate 24. A first locking piece 26 matching the locking hole is provided at the end of the locking portion 13. In this embodiment, the fixed arm includes an extension section 27 and an inclined section 28. The inclined section 28 is provided on the side of the extension section 27 away from the cover body 16. The fixed base plate 24 is provided at the end position of the inclined section 28. After installation, in order to make the fit within the structure more consistent with the position fit between the parts after assembly between the upper rail and the lower rail, and to prevent unnecessary friction and collision between the parts during work, it can be designed that the maximum height of the inclined section 28 relative to the connecting arm 17>the maximum height of the mounting base relative to the connecting arm 17>the maximum height of the cover body 16 relative to the connecting arm 17.

[0042] In addition, a second locking hole 29 is provided on the inner wall of the upper main body 1 on the corresponding side of the locking portion 13, and a second locking piece 30 protruding toward the corresponding side wall is provided at the position corresponding to the locking portion 13 and the second locking hole 29, and the second locking piece 30 is embedded in the second locking hole 29 at the corresponding position.

[0043] Example 2

[0044] Reference Figures 8 to 11 , which is different from Example 1 in that:

[0045] The elastic support member includes an elastic contact portion 12 which is topped on the abutment portion 7 and a locking portion 13 which is locked and installed in cooperation with the fixing member. There is a certain distance between the elastic contact portion 12 and the inner wall of the corresponding side wall. Both ends of the elastic contact portion 12 are connected to the locking portion 13 on the corresponding side through a third elastic connecting plate 31, and the third elastic connecting portion is inclined toward the direction of the corresponding side wall.

[0046] Among them, the inner wall of the upper main body 1 on the corresponding side of the locking part 13 is also provided with a second locking hole 29, and the position corresponding to the locking part 13 and the second locking hole 29 is provided with a second locking piece 30 protruding toward the corresponding side wall, and the second locking piece 30 is embedded in the second locking hole 29 at the corresponding position.

[0047] Example 3

[0048] Reference Figures 12 to 15 , which is different from Example 1 in that:

[0049] The elastic support member includes an elastic contact portion 12 mounted on the top of the abutment portion 7, a locking portion 13 locked and installed in cooperation with the fixing member, and an inclined elastic support portion 32. There is a certain distance between the elastic contact portion 12 and the inner wall of the corresponding side wall. One end of the elastic contact portion 12 is connected to the locking portion 13 on the corresponding side through a fourth elastic connecting plate 33. The fourth elastic connecting plate 33 is inclined toward the corresponding side wall. The other end of the elastic contact portion 12 is connected to the elastic support portion 32. The other end of the elastic support portion 32 is locked and installed with the inner wall of the corresponding side wall.

[0050] Among them, the inner wall of the upper main body 1 on the corresponding side of the locking part 13 is also provided with a second locking hole 29, and the position corresponding to the locking part 13 and the second locking hole 29 is provided with a second locking piece 30 protruding toward the corresponding side wall, and the second locking piece 30 is embedded in the second locking hole 29 at the corresponding position.

[0051] In addition, the elastic support part 32 mainly plays a supporting role in the present embodiment, and the structure of the locking installation between the other end of the elastic support part 32 and the inner wall of the corresponding side wall is as follows: a raised third locking piece 34 is provided on the inner wall of the upper main body 1 on the side corresponding to the other end of the elastic support part 32, and a third locking hole 35 is provided at the position corresponding to the third locking piece 34 at the other end of the elastic support part 32, and the second locking piece 30 is embedded in the second locking hole 29.

[0052] Furthermore, in this embodiment, the fixing member is only disposed at one end portion of the upper rail.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An elastic unlocking mechanism of a long slide rail front and rear adjustment device for a car seat, comprising an upper rail, the upper rail comprising an N-shaped upper body (1), the lower ends of the left and right sides of the upper body (1) are bent outward to form lower bent parts (2), and the lower bent parts (2) on the left and right sides are bent upward to form a slide plate (3), characterized in that: The outer wall of one side wall of the upper body (1) is provided with a locking assembly, and the inner wall of the other side wall is provided with an elastic support assembly; the locking assembly comprises a locking frame (4) mounted on the outer wall of one side wall of the upper body (1), and a locking plate hinged to the locking frame (4); the locking plate cooperates with the elastic support assembly to realize unlocking or locking action.

2. The elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat according to claim 1, characterized in that: The locking plate comprises a pressing portion (5), a hinge portion (6), an abutting portion (7) cooperating with the elastic support component, and a locking portion (8) which are connected in sequence. The pressing portion (5) extends in a direction away from the hinge portion (6), the abutting portion (7) extends into the upper main body (1) and abuts against the elastic support component, and the locking portion (8) is bent in a direction away from the abutting portion (7) and penetrates the corresponding side wall of the upper main body (1).

3. The elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat according to claim 2, characterized in that: The upper body (1) has a corresponding side wall through which the locking portion (8) passes, and a plurality of through holes (9) are provided at the end of the locking portion (8), and the locking teeth (10) pass through the through holes (9).

4. The elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat according to claim 2, characterized in that: The elastic support assembly comprises an elastic support member and a fixing member, wherein the elastic support member is arranged in the upper body (1), and the fixing member is installed at two opposite ends or one of the ends of the upper rail, and the ends of the elastic support member are locked and installed in cooperation with the fixing member on the corresponding side.

5. The elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat according to claim 4, characterized in that: The elastic support member comprises a fixing portion (11) fixedly mounted on the inner wall of the other side wall of the upper body (1), an elastic abutting portion (12) arranged on top of the abutting portion (7), and a locking portion (13) mounted and locked in cooperation with the fixing member, the fixing portion (11) and the elastic abutting portion (12) being connected via a first elastic connecting plate (14) arranged obliquely in the direction of the corresponding end of the upper rail, a certain distance being provided between the elastic abutting portion (12) and the inner wall of the corresponding side wall, both ends of the elastic abutting portion (12) and the locking portion (13) on the corresponding side being connected via a second elastic connecting plate (15), and the second elastic connecting portion being arranged obliquely in the direction of the corresponding side wall.

6. The elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat according to claim 4, characterized in that: The elastic support member comprises an elastic abutting portion (12) disposed on top of the abutting portion (7), and a locking portion (13) mounted to be locked in cooperation with the fixing member, wherein a certain distance exists between the elastic abutting portion (12) and the inner wall of the corresponding side wall, and both ends of the elastic abutting portion (12) are connected to the locking portion (13) on the corresponding side via a third elastic connecting plate (31), and the third elastic connecting portion is arranged to be inclined in the direction of the corresponding side wall.

7. The elastic unlocking mechanism of the front-rear adjustment device of the long slide rail of the automobile seat according to claim 4, characterized in that: The elastic support member comprises an elastic abutting portion (12) disposed on top of the abutting portion (7), a locking portion (13) that is locked and installed in cooperation with the fixing member, and an elastic support portion (32) that is arranged obliquely, wherein a certain distance is provided between the elastic abutting portion (12) and the inner wall of the corresponding side wall, one end of the elastic abutting portion (12) is connected to the locking portion (13) on the corresponding side via a fourth elastic connecting plate (33), the fourth elastic connecting plate (33) is arranged obliquely in the direction of the corresponding side wall, the other end of the elastic abutting portion (12) is connected to the elastic support portion (32), and the other end of the elastic support portion (32) is locked and installed with the inner wall of the corresponding side wall.

8. An elastic unlocking mechanism for a front-rear adjustment device for a long slide rail of a car seat according to any one of claims 5 to 7, characterized in that: The fixing member comprises an end cover mounted in cooperation with the end of the upper rail, a fixing arm mounted on the inner side of the end cover and extending in the direction of the corresponding side locking portion (13), a first locking hole (25) being provided at the end of the fixing arm, and a first locking piece (26) matching with the first locking hole (25) being provided at the end of the locking portion (13).

9. The elastic unlocking mechanism of the long slide rail front and rear adjustment device of the automobile seat according to claim 8, characterized in that: A second locking hole (29) is provided on the inner wall of the upper body (1) at the corresponding side of the locking portion (13); a second locking piece (30) protruding toward the corresponding side wall is provided at a position of the locking portion (13) corresponding to the second locking hole (29); and the second locking piece (30) is embedded in the second locking hole (29) at the corresponding position.

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