A car seat slide rail structure

Abstract

This invention provides an automotive seat slide rail structure, including an upper rail, a control lever, a locking plate, and a lower rail. An unlocking lever is rotatably connected to the upper rail. The rear side of the control lever and the front side of the unlocking lever are both connected to an S-shaped clamping spring. The rear side of the unlocking lever is connected to the front side of a return spring. The rear side of the return spring is fixedly connected to the top of the upper rail. The locking plate is connected below the front side of the return spring. A return spring strip is curved upwards on the return spring, and the upper front end of the return spring strip abuts against the lower rear end of the control lever. This invention solves the problems of existing slide rail structures having many parts, complex design, and high production costs.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and in particular to an automotive seat slide rail structure. Background Technology

[0002] Current seat rails can be categorized into manual and electric types based on their power source. Manual rails require an external force to drive a locking mechanism for forward and backward adjustment. Once unlocked, the locking mechanism, aided by a return spring, wedges tightly against the rail, ensuring the seat remains in the adjusted position. Existing rail structures often utilize multiple sets of coil springs, tension springs, and other components, resulting in complex structural design, assembly, and manufacturing processes, leading to high production costs. Therefore, a new automotive seat rail structure is needed. Summary of the Invention

[0003] The purpose of this invention is to provide an automotive seat slide rail structure that solves the problems of existing slide rail structures having many parts, complex design, and high production costs.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A car seat slide rail structure includes an upper rail, a control lever, a locking plate, and a lower rail. An unlocking lever is rotatably connected to the upper rail. The rear side of the control lever and the front side of the unlocking lever are both connected to an S-shaped clamping spring. The rear side of the unlocking lever is connected to the front side of a return spring. The rear side of the return spring is fixedly connected to the top of the upper rail. The locking plate is connected to the lower front side of the return spring. A return spring strip is provided on the return spring, and the upper front end of the return spring strip abuts against the lower rear end of the control lever.

[0006] Furthermore, the locking plate has several sets of locking teeth spaced apart on both its left and right sides, the upper rail has several sets of inner locking tooth grooves spaced apart on both its left and right sides, and the lower rail has several sets of outer locking tooth grooves spaced apart on both its left and right sides. When the locking plate moves upward, the locking teeth pass through the inner and outer locking tooth grooves and lock the upper and lower rails. When the locking plate moves downward, the locking teeth disengage from the inner and outer locking tooth grooves and unlock the upper and lower rails.

[0007] Furthermore, the left and right side walls of the upper rail are bent outward to form an inner limiting groove with a U-shaped structure, and the left and right side walls of the lower rail are bent inward to form an outer limiting groove with a U-shaped structure. The outer side wall of the inner limiting groove is movably connected to the outer limiting groove, and the inner side wall of the outer limiting groove is movably connected to the inner limiting groove.

[0008] Furthermore, the lower ends of the left and right side walls of the upper rail are provided with first upper limit plates, and the inner bottom surface of the lower rail is provided with first lower limit plates on both sides along the length direction to cooperate with the first upper limit plates.

[0009] Furthermore, the rear side of the control lever is fixedly inserted into the upper clamping groove of the clamping spring, and the front side of the unlocking lever is inserted into the lower clamping groove of the clamping spring.

[0010] Furthermore, a slot is provided on the upper end face of the rear side of the control lever, and a snap-fit ​​boss that matches the slot is provided on the top edge of the clamping spring. An upwardly curved clamping spring strip is provided on the bottom edge of the clamping spring, and a clamping limiting groove that matches the clamping spring strip 34 is provided at the lower end of the unlocking lever.

[0011] Furthermore, the unlocking rod has a U-shaped cross-section with a fixing groove, in which the clamping spring and the operating lever are both connected. The upper front end of the unlocking rod is bent inward and has several sets of fixing edges, which are used to limit the operating lever in the fixing groove.

[0012] Furthermore, the unlocking rod has a bent section that bends diagonally upwards at its rear side, and a pressure rod section that bends horizontally at the rear side of the bent section. The pressure rod section is connected to the return spring and the locking plate. The upper end of the unlocking rod is provided with a rotating shaft, which is rotatably connected to the rotating shaft holes on the left and right sides of the upper rail.

[0013] Furthermore, the seat slide rail structure also includes a movable riveting shaft, which is slidably connected to the unlocking rod, and is fixedly connected to the front side of the return spring and the locking plate. The upper shaft of the movable riveting shaft is movably connected to the top of the upper rail.

[0014] Furthermore, the lower part of the movable riveting shaft passes through the connecting shaft hole and the locking plate on the front side of the return spring, and the return spring and the locking plate are fixedly arranged between the second upper limit plate and the second lower limit plate of the movable riveting shaft; the upper shaft of the movable riveting shaft passes through the elongated hole on the rear side of the unlocking rod and the upper movable hole on the top of the upper rail in sequence.

[0015] The beneficial effects of this invention are as follows: This invention mainly uses a structural clamping spring and a return spring to achieve the connection of parts and the reset of the locking structure. It is not only simple in structure and uses fewer parts, but also easy to implement. It can effectively solve the problem of many parts and long assembly process in the manual slide rail unlocking device of automobile seat, and can effectively reduce production costs and increase production efficiency.

[0016] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an automotive seat slide rail according to the present invention.

[0018] Figure 2 This is a diagram showing the assembly structure of the joystick assembly and the upper rail in this invention.

[0019] Figure 3 This is an exploded view of a portion of the structure of an automotive seat slide rail according to the present invention.

[0020] Figure 4 This is an exploded view of an automotive seat slide rail structure according to the present invention.

[0021] Figure 5 This is a cross-sectional view of an automotive seat slide rail structure according to the present invention.

[0022] Figure 6 This is a side view of an automotive seat slide rail structure according to the present invention.

[0023] Figure 7 This is a structural diagram of the clamping spring in this invention.

[0024] Figure 8 This is a structural diagram of the unlocking lever in this invention.

[0025] Figure 9 This is a structural diagram of the movable riveting shaft in this invention. Detailed Implementation

[0026] like Figures 1 to 6 The illustrated car seat slide rail structure includes an upper rail 1, a control lever 2, a locking plate 6, and a lower rail 9. An unlocking lever 4 is rotatably connected to the upper rail 1. The rear side of the control lever 2 and the front side of the unlocking lever 4 are both connected to an S-shaped clamping spring 3. The rear side of the unlocking lever 4 is connected to the front side of a return spring 5. The rear side of the return spring 5 is fixedly connected to the top of the upper rail 1. The locking plate 6 is connected below the front side of the return spring 5. A return spring strip 51 is curved upwards on the return spring 5, and the upper front end of the return spring strip 51 abuts against the lower rear end of the control lever 2. The return spring 5 has a connecting shaft hole 52 and a lower riveting hole 53 on its front and rear sides, respectively. The lower riveting hole 53 of the return spring 5 is riveted to the upper riveting hole 15 at the top of the upper rail 1 by rivets 8.

[0027] Preferably, in conjunction with the above scheme, in order to facilitate locking and unlocking functions through locking teeth and locking tooth grooves, several sets of locking teeth 61 are spaced apart on both the left and right sides of the locking plate 6, several sets of inner locking tooth grooves 11 are spaced apart on both the left and right sides of the upper rail 1, and several sets of outer locking tooth grooves 91 are spaced apart on both the left and right sides of the lower rail 9; when the locking plate 6 moves upward, the locking teeth 61 pass through the inner locking tooth grooves 11 and the outer locking tooth grooves 91 and lock the upper rail 1 and the lower rail 9; when the locking plate 6 moves downward, the locking teeth 61 disengage from the inner locking tooth grooves 11 and the outer locking tooth grooves 91 and unlock the upper rail 1 and the lower rail 9.

[0028] Preferably, in conjunction with the above scheme, in order to better connect the upper rail 1 and the lower rail 9, the left and right side walls of the upper rail 1 are bent outward to form an inner limiting groove 12 with a U-shaped structure, and the left and right side walls of the lower rail 9 are bent inward to form an outer limiting groove 92 with a U-shaped structure. The outer side wall of the inner limiting groove 12 is movably connected in the outer limiting groove 92, and the inner side wall of the outer limiting groove 92 is movably connected in the inner limiting groove 12.

[0029] Preferably, in conjunction with the above scheme, in order to facilitate limiting the movement distance of the upper rail 1, the lower ends of the left and right side walls of the upper rail 1 are provided with a first upper limit plate 16, and the inner bottom surface of the lower rail 9 is provided with a first lower limit plate 93 on both sides along the length direction to cooperate with the first upper limit plate 16.

[0030] Preferably, in conjunction with the above scheme, in order to facilitate the connection between the control lever 2 and the unlocking lever 4, the rear limit of the control lever 2 is inserted into the upper clamping groove 31 of the clamping spring 3, and the front limit of the unlocking lever 4 is inserted into the lower clamping groove 32 of the clamping spring 3.

[0031] Preferably, in conjunction with the above scheme, in order to limit and fix the control lever 2 in the upper clamping groove 31, a slot 21 is provided on the upper end face of the rear side of the control lever 2, and a snap-fit ​​boss 33 adapted to the slot 21 is provided on the top edge of the clamping spring 3; in order to limit and fix the unlocking lever 4 in the lower clamping groove 32, an upwardly curved clamping spring strip 34 is provided on the bottom edge of the clamping spring 3, and a clamping limiting groove 47 adapted to the clamping spring strip 34 is provided at the lower end of the unlocking lever 4.

[0032] Preferably, in conjunction with the above scheme, in order to facilitate the limiting assembly of the control lever 2 and the clamping spring 3, the cross-section of the unlocking lever 4 is a U-shaped structure, in which a fixing groove 40 is provided, and the clamping spring 3 and the control lever 2 are both connected in the fixing groove 40; the upper front end of the unlocking lever 4 is bent inward and provided with several sets of fixing edges 46, which are used to limit the control lever 2 in the fixing groove 40.

[0033] Preferably, in combination with the above solution, in order to lift the rear side of the unlocking lever 4 by a certain height to facilitate the assembly and limiting of the return spring piece 5 and the lock catch plate 6, and at the same time increase the structural strength of the unlocking lever 4 to prevent the unlocking lever 4 from deforming, the rear side of the unlocking lever 4 is bent obliquely upward to be provided with a bending section 41, the rear side of the bending section 41 is bent horizontally to be provided with a pressing lever section 42, and the pressing lever section 42 is connected to the return spring piece 5 and the lock catch plate 6; in order to facilitate the rotational connection of the unlocking lever 4, a rotating shaft 45 is provided at the upper end of the unlocking lever 4, and the rotating shaft 45 is rotationally connected to the rotating shaft holes 13 on the left and right sides of the upper rail 1.

[0034] Preferably, in combination with the above solution, in order to facilitate the fixing of the return spring piece 5 and the lock catch plate 6, the seat slide rail structure further includes a movable riveting shaft 7, the movable riveting shaft 7 is movably connected to the long circular hole 44 of the unlocking lever 4, the movable riveting shaft is fixedly connected to the front side of the return spring piece 5 and the lock catch plate 6, and the upper shaft rod of the movable riveting shaft 7 is movably connected to the top of the upper rail 1.

[0035] Preferably, in combination with the above solution, the lower part of the movable riveting shaft 7 passes through the connecting shaft hole 52 on the front side of the return spring piece 5 and the lock catch plate 6, and the return spring piece 5 and the lock catch plate 6 are fixedly arranged between the second upper limiting plate 71 and the second lower limiting plate 72 of the movable riveting shaft 7. The second lower limiting plate 72 is formed by pressing and riveting the lower end of the movable riveting shaft 7, so that the cross section of the movable shaft 7 is in a "plus" shaped structure; the upper shaft rod of the movable riveting shaft 7 sequentially passes through the long circular hole 44 on the rear side of the unlocking lever 4 and the upper movable hole 14 on the top of the upper rail 1. The connection structure between the upper shaft rod of the movable riveting shaft 7 and the upper movable hole 14 is a reserved unlocking structure, and unlocking can be achieved by pressing the upper shaft rod of the movable riveting shaft 7 from top to bottom.

[0036] The working principle of the present invention:

[0037] When the front side of the operating lever 2 is pulled upward by hand, the rear side of the operating lever 2 will带动 the clamping spring piece 3 and the front side of the unlocking lever 4 to lift, causing the unlocking lever 4 to rotate counterclockwise around the rotating shaft 45. At this time, the rear side of the unlocking lever 4 presses downward, first pressing down the return spring strip 51, and then further pressing down,带动 the movable riveting shaft 7, the front side of the return spring piece 5, and the lock catch plate 6 to move downward together, so that the locking teeth 61 of the lock catch plate 6 are disengaged from the inner locking tooth groove 11 and the outer locking tooth groove 91. After unlocking, the seat and the upper rail 1 can be moved back and forth;

[0038] When the operating lever 2 is released, the return spring piece 5 elastically resets, the return spring strip 51 lifts the rear side of the unlocking lever 4 upward, and the return spring piece 5 also带动 the movable riveting shaft 7 and the lock catch plate 6 to move upward together, so that the locking teeth 61 of the lock catch plate 6 are engaged with the inner locking tooth groove 11 and the outer locking tooth groove 91 again, realizing the movement locking of the seat and the upper rail 1.

[0039] In the description of this invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "bottom," "inner," "outer," "one end," "one side," "both ends," and "both sides" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct applications in other situations, fall within the protection scope of the present invention.

Claims

1. A car seat slide rail structure, comprising an upper rail (1), a control lever (2), a locking plate (6), and a lower rail (9), characterized in that, The upper rail (1) is rotatably connected to an unlocking rod (4). The rear side of the control lever (2) and the front side of the unlocking rod (4) are both connected to the clamping spring (3) of the S-shaped structure. The rear side of the unlocking rod (4) is connected to the front side of the return spring (5). The rear side of the return spring (5) is fixedly connected to the top of the upper rail (1). The locking plate (6) is connected to the lower front side of the return spring (5). The return spring (5) is provided with a return spring strip (51) that is raised on the return spring (5). The upper front side of the return spring strip (51) abuts against the lower rear side of the control lever (2). The rear side of the control lever (2) is inserted into the upper clamping groove (31) of the clamping spring (3), and the front side of the unlocking lever (4) is inserted into the lower clamping groove (32) of the clamping spring (3). The upper end face of the rear side of the control lever (2) is provided with a slot (21), and the top edge of the clamping spring (3) is provided with a snap-fit ​​boss (33) that matches the slot (21). The bottom edge of the clamping spring (3) is provided with an upwardly curved clamping spring strip (34), and the lower end of the unlocking lever (4) is provided with a clamping limiting groove (47) that matches the clamping spring strip (34). The seat slide rail structure also includes a movable riveting shaft (7), which is movably connected to the unlocking rod (4). The movable riveting shaft (7) is fixedly connected to the front side of the return spring (5) and the locking plate (6). The upper shaft of the movable riveting shaft (7) is movably connected to the top of the upper rail (1). The lower part of the movable riveting shaft (7) passes through the connecting shaft hole (52) on the front side of the return spring (5) and the locking plate (6). The return spring (5) and the locking plate (6) are fixedly arranged between the second upper limit plate (71) and the second lower limit plate (72) of the movable riveting shaft (7). The upper shaft of the movable riveting shaft (7) passes through the elongated hole (44) on the rear side of the unlocking rod (4) and the upper movable hole (14) on the top of the upper rail (1) in sequence.

2. The automotive seat slide rail structure according to claim 1, characterized in that, The locking plate (6) has several sets of locking teeth (61) spaced apart on both sides, the upper rail (1) has several sets of inner locking tooth grooves (11) spaced apart on both sides, and the lower rail (9) has several sets of outer locking tooth grooves (91) spaced apart on both sides. When the locking plate (6) moves upward, the locking teeth (61) pass through the inner locking tooth grooves (11) and the outer locking tooth grooves (91) and lock the upper rail (1) and the lower rail (9). When the locking plate (6) moves downward, the locking teeth (61) disengage from the inner locking tooth grooves (11) and the outer locking tooth grooves (91) and unlock the upper rail (1) and the lower rail (9).

3. The automotive seat slide rail structure according to claim 1, characterized in that, The left and right side walls of the upper rail (1) are bent outward to form an inner limiting groove (12) of a U-shaped structure, and the left and right side walls of the lower rail (9) are bent inward to form an outer limiting groove (92) of a U-shaped structure. The outer side wall of the inner limiting groove (12) is movably connected in the outer limiting groove (92), and the inner side wall of the outer limiting groove (92) is movably connected in the inner limiting groove (12).

4. The automotive seat slide rail structure according to claim 3, characterized in that, The lower ends of the left and right side walls of the upper rail (1) are provided with a first upper limit plate (16), and the inner bottom surface of the lower rail (9) is provided with a first lower limit plate (93) on both sides along the length direction to cooperate with the first upper limit plate (16).

5. The automotive seat slide rail structure according to claim 1, characterized in that, The unlocking rod (4) has a U-shaped cross-section and a fixing groove (40) is provided therein. The clamping spring (3) and the operating rod (2) are both connected in the fixing groove (40). The upper front end of the unlocking rod (4) is bent inward and has several sets of fixing edges (46). The fixing edges (46) are used to limit the operating rod (2) in the fixing groove (40).

6. The automotive seat slide rail structure according to claim 1, characterized in that, The unlocking rod (4) has a bent section (41) that bends diagonally upward on the rear side, and a pressure rod section (42) that bends horizontally on the rear side of the bent section (41). The pressure rod section (42) is connected to the return spring (5) and the locking plate (6). The upper end of the unlocking rod (4) is provided with a rotating shaft (45), which is rotatably connected to the rotating shaft holes (13) on the left and right sides of the upper rail (1).

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