Manual sliding rail of automobile seat

Abstract

The invention relates to the technical field of automobile seat parts, and provides an automobile seat manual sliding rail which comprises two sets of sliding rail structures arranged in parallel and an unlocking assembly arranged between the two sets of sliding rail structures, and each sliding rail structure comprises an upper sliding rail, a lower sliding rail and a locking assembly used for locking the upper sliding rail and the lower sliding rail, retainers are arranged at the two ends of the interior of the lower sliding rail respectively, the upper sliding rail is connected with the retainers in a sliding mode, rollers are arranged at the two ends of each retainer respectively, and the rollers make contact with the upper sliding rail. The retainers are arranged at the two ends of the interior of the lower sliding rail, the upper sliding rail is supported through the retainers, when the upper sliding rail slides, the pin rollers rotate synchronously, friction resistance borne by the upper sliding rail during sliding is reduced, therefore, sliding force of the sliding rail is optimized, durability of the sliding rail is improved, and the service life of the sliding rail is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seat parts, in particular to a manual slide rail for an automobile seat. Background Art

[0002] The car seat slide is one of the core components of the car seat, which is used to adjust the front and rear position of the seat and directly affects driving comfort and safety.

[0003] The prior art CN209616945U discloses an upper and lower locking slide rail, comprising an upper rail and a lower rail connected in a sliding manner, wherein the side surface of the lower rail close to the upper rail is provided with a slide groove along its length direction, and a tooth plate is slidably arranged in the slide groove, and a plurality of tooth blocks are arranged on both sides of the tooth plate, and racks that are engaged with the tooth blocks are fixed on both sides of the slide groove opening. A connecting block is fixed on the upper rail, and an elastic pin is elastically arranged in the connecting block along the depth direction of the slide groove. The elastic pin is fixed to the tooth plate. When in use, the elastic pin drives the tooth plate to snap into the tooth groove of the rack, and the relative position of the upper rail and the lower rail is fixed and locked; when it is necessary to slide the upper rail to change the position of the seat in the car compartment, the elastic pin is pressed down, and the elastic pin drives the tooth plate to move to the bottom of the slide groove and disengage from the tooth groove of the rack, and the upper rail can slide along the length direction of the lower rail to adjust the seat position.

[0004] However, since the upper rail in the prior art CN209616945U slides directly on the lower rail, the sliding force of the upper rail is not very good, resulting in increased wear of components, affecting their durability and service life. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide a manual slide rail for a car seat, which optimizes the sliding force of the slide rail, improves the durability of the slide rail, and prolongs the service life of the slide rail.

[0006] The embodiment of the present invention provides a manual slide rail for a car seat, which adopts the following technical solution:

[0007] A manual slide rail for a car seat comprises two sets of slide rail structures arranged in parallel and an unlocking component arranged between the two sets of slide rail structures, the slide rail structure comprises an upper slide rail and a lower slide rail which are slidably assembled and a locking component for locking the upper slide rail and the lower slide rail, retaining frames are respectively arranged at the inner ends of the lower slide rail, the upper slide rail is slidably connected to the retaining frame, and rollers are respectively arranged at the two ends of the retaining frame, and the rollers are in contact with the upper slide rail.

[0008] Preferably, balls are respectively provided at both ends of the retaining frame, the balls are located above the rollers, and the balls are in contact with the upper slide rails.

[0009] Preferably, oil storage grooves are respectively arranged at both ends of the cage, and the oil storage grooves are located at the side of the balls and above the end of the upper slide rail.

[0010] Preferably, the oil storage groove is of a spherical structure.

[0011] Preferably, a moving piece is arranged at the lower end of the upper slide rail, a first limiting piece and a second limiting piece are arranged on the lower slide rail, and the moving piece is located between the first limiting piece and the second limiting piece.

[0012] Preferably, the unlocking assembly includes two support members arranged in parallel, a handle arranged between the two support members, and unlocking members arranged at both ends of the handle. The support members are arranged on the upper slide rail. The upper end of at least one of the support members is bent to form a blocking piece. The unlocking member is used to press the positioning pin of the locking assembly, and the blocking piece is used to limit the unlocking member. A torsion spring can be arranged between the support member and the handle.

[0013] Preferably, the unlocking assembly further includes a rotating bushing arranged on the support member, and the end of the handle is arranged on the rotating bushing.

[0014] Preferably, the unlocking member includes a rotating piece and an unlocking rod. The rotating piece is arranged on the handle, the unlocking rod is arranged on the rotating piece, and a through groove for the unlocking rod to pass through is arranged on the support member.

[0015] Preferably, one end of the torsion spring is bent and clamped on the support member, and the other end of the torsion spring is bent and clamped on the rotating piece.

[0016] Preferably, a sound-absorbing pad is arranged on the blocking piece.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In the present invention, cages are arranged at both inner ends of the lower slide rail, and the upper slide rail is supported by the cages. When the upper slide rail slides, the rollers rotate synchronously, reducing the frictional resistance received when the upper slide rail slides. Thus, the sliding force of the slide rail is optimized, the durability of the slide rail is improved, and the service life of the slide rail is prolonged. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0020] Figure 1 Schematic structural diagram of the present invention;

[0021] Figure 2 Exploded view of the present invention;

[0022] Figure 3 is Figure 2 Enlarged view of the structure at position A in

[0023] Figure 4 Schematic structural diagram of the connection structure between the cage and the upper slide rail of the present invention;

[0024] Figure 5 is Figure 4 Schematic structural diagram from another perspective;

[0025] Figure 6 Schematic structural diagram of the cage in an embodiment of the present invention;

[0026] Figure 7 Schematic structural diagram of the supporting bracket in another embodiment of the present invention;

[0027] Figure 8 Side view of the present invention;

[0028] Figure 9 is Figure 8 Enlarged view of the structure at position B in

[0029] Figure 10 Schematic structural diagram of the lower slide rail of the present invention;

[0030] Figure 11 Side sectional view of the slide rail structure of the present invention;

[0031] Figure 12 is Figure 11 Enlarged view of the structure at position C in

[0032] In the figure: 1. Slide rail structure; 2. Unlocking component; 3. Upper slide rail; 4. Lower slide rail; 5. Locking component; 6. Cage; 7. Roller; 8. Ball; 9. Oil storage groove; 10. Moving piece; 11. First limiting piece; 12. Second limiting piece; 13. Support member; 14. Handle; 15. Unlocking piece; 16. Blocking piece; 17. Torsion spring; 18. Rotating bushing; 19. Rotating piece; 20. Unlocking rod; 21. Through groove; 22. Sound insulation pad; 23. Mounting seat; 24. Elastic pin; 25. Locking piece; 26. Limiting notch; 27. Spring. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0037] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0038] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0039] Embodiment

[0040] Such asFigure 1-12 As shown in the figure, the manual slide rail of the vehicle seat according to the embodiment of the present invention includes two sets of slide rail structures 1 arranged in parallel and an unlocking component 2 provided between the two sets of slide rail structures 1. The slide rail structure 1 includes a upper slide rail 3 and a lower slide rail 4 which are slidably assembled and a locking component 5 for locking the upper slide rail 3 and the lower slide rail 4. At both ends of the interior of the lower slide rail 4, a cage 6 is respectively provided. The upper slide rail 3 is slidably connected with the cage 6. At both ends of the cage 6, rollers 7 are respectively provided. Grease is applied on the rollers 7. The rollers 7 are in contact with the upper slide rail 3. Specifically in implementation, four rollers 7 are provided on each cage 6, and two rollers 7 are respectively provided at both ends of the cage 6.

[0041] When adjusting the position of the vehicle seat, first use the unlocking component 2 to unlock the upper slide rail 3 and the lower slide rail 4, and then slide the upper slide rail 3. The sliding of the upper slide rail 3 causes the rollers 7 to rotate synchronously, thereby reducing the frictional resistance received when the upper slide rail 3 slides. And the setting of the grease can ensure the rotation effect of the rollers 7, so that the frictional resistance received by the upper slide rail 3 is further reduced. The sliding force of the slide rail is optimized, the durability of the slide rail is improved, and the service life of the slide rail is prolonged. After completing the adjustment of the vehicle seat position, use the locking component 5 to lock the upper slide rail 3 and the lower slide rail 4.

[0042] As Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 shown, in this embodiment, balls 8 are respectively provided at both ends of the cage 6. Specifically in implementation, four balls 8 are provided on each cage 6, and two balls 8 are respectively provided at both ends of the cage 6. The balls 8 are located above the rollers 7. The balls 8 are in contact with the upper slide rail 3. Grease is applied on the balls 8 to ensure the rotation effect of the balls 8. When the upper slide rail 3 slides, the balls 8 rotate synchronously. The balls 8 and the rollers 7 are used in cooperation to ensure the stability of the operation of the upper slide rail 3 and avoid the problem of jamming.

[0043] Since the amount of grease applied on the rollers 7 and the balls 8 is limited, in order to further optimize the sliding force of the slide rail, as Figure 4 、 Figure 5 and 7 shown, in this embodiment, oil storage grooves 9 are respectively provided at both ends of the cage 6. The oil storage grooves 9 are located at the side of the balls 8 and above the end of the upper slide rail 3. The oil storage grooves 9 are used to provide grease between the balls 8 and the upper slide rail 3. When the upper slide rail 3 moves back and forth or the vehicle is driving on the road, the lubrication effect of the grease can be realized through vibration friction.

[0044] As Figure 7As shown, in this embodiment, the oil storage tank 9 has a spherical structure. The oil storage tank 9 is coated with grease. The spherical oil storage tank 9 can facilitate the retention of a part of the grease in its arc-shaped area, slow down the outflow speed of the grease, and thus further improve the durability of the slide rail.

[0045] Currently, the front and rear strokes of manual slide rails on the market are restricted by assembling a metal pin on the bracket in the slide rail and cooperating with front and rear limit pieces. In order to optimize the process and reduce production costs, as Figure 1 、 Figure 2 、 Figure 5 、 Figure 8 and Figure 9 shown, in this embodiment, a moving piece 10 is provided at the lower end of the upper slide rail 3, a first limit piece 11 and a second limit piece 12 are provided on the lower slide rail 4, the moving piece 10 is located between the first limit piece 11 and the second limit piece 12. When the upper slide rail 3 moves, the first limit piece 11 and the second limit piece 12 limit the moving piece 10, thereby realizing the limit of the stroke of the upper slide rail 3.

[0046] As Figure 1-5 、 Figure 11-12 shown, in this embodiment, the unlocking assembly 2 includes two parallel support members 13, a handle 14 provided between the two support members 13, and unlocking members 15 provided at both ends of the handle 14. The support members 13 are provided on the upper slide rail 3. The upper end of at least one support member 13 is bent to form a blocking piece 16. The unlocking member 15 is used to press the elastic pin 24 of the locking assembly 5, and the blocking piece 16 is used to limit the unlocking member 15. A torsion spring 17 may be provided between the support member 13 and the handle 14.

[0047] When unlocking, gently lift the handle 14. The handle 14 drives the unlocking member 15 to rotate, so that the unlocking member 15 presses the elastic pin 24 of the locking assembly 5. The elastic pin 24 drives the locking piece 25 to move downward, and the locking piece 25 is separated from the limit notch 26, realizing the unlocking function. At this time, the torsion spring 17 is compressed and the spring 27 in the mounting seat 23 is stretched. After the adjustment of the car seat is completed, release the handle 14. Under the action of the return force of the torsion spring 17, the handle 14 resets. Under the action of the return force of the spring 27, the elastic pin 24 of the locking assembly 5 resets, and the locking piece 25 and the limit notch 26 return to the initial state, realizing the locking of the upper slide rail 3 and the lower slide rail 4. The unlocking and locking of the locking assembly 5 are both prior arts and will not be elaborated here.

[0048] As Figure 1-5 shown, in this embodiment, the unlocking assembly 2 further includes a rotating bushing 18 provided on the support member 13. The end of the handle 14 is provided on the rotating bushing 18. The setting of the rotating bushing 18 can improve the safety and reliability of use.

[0049] As Figure 1-5As shown, in this embodiment, the unlocking member 15 includes a rotating piece 19 and an unlocking rod 20. The rotating piece 19 is arranged on the handle 14, the unlocking rod 20 is arranged on the rotating piece 19, and a through groove 21 for the unlocking rod 20 to pass through is arranged on the support member 13. The above structure can make the overall layout more compact and reduce the space occupation.

[0050] As Figure 1-5 and Figure 8 shown, in this embodiment, one end of the torsion spring 17 is bent and stuck on the support member 13, and the other end of the torsion spring 17 is bent and stuck on the rotating piece 19. The design of the above structure can improve the stability of the torsion spring 17.

[0051] As Figure 1-5 shown, in this embodiment, a sound-absorbing pad 22 is arranged on the blocking piece 16. When the handle 14 is lifted, a collision occurs between the rotating piece 19 and the sound-absorbing pad 22 to avoid generating noise.

[0052] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A manual slide rail for an automotive seat, comprising two sets of slide rail structures arranged in parallel and an unlocking component disposed between the two sets of slide rail structures. The slide rail structure includes an upper slide rail and a lower slide rail that are slidably assembled and a locking component for locking the upper slide rail and the lower slide rail, characterized in that: At both inner ends of the lower slide rail, cage retainers are respectively provided. The upper slide rail is slidably connected to the cage retainers. At both ends of the cage retainers, rollers are respectively provided, and the rollers are in contact with the upper slide rail.

2. The manual slide rail of an automotive seat according to claim 1, wherein: At both ends of the cage retainers, balls are respectively provided. The balls are located above the rollers, and the balls are in contact with the upper slide rail.

3. The manual slide rail of an automotive seat according to claim 2, wherein: At both ends of the cage retainers, oil storage grooves are respectively provided. The oil storage grooves are located at the sides of the balls and above the ends of the upper slide rail.

4. The manual slide rail of an automotive seat according to claim 3, wherein: The oil storage grooves are of spherical structure.

5. A manual sliding rail for an automotive seat according to claim 1, characterized in that: A moving piece is provided at the lower end of the upper slide rail. A first limiting piece and a second limiting piece are provided on the lower slide rail, and the moving piece is located between the first limiting piece and the second limiting piece.

6. A manual slide rail for an automotive seat according to claim 1, wherein: The unlocking assembly includes two support members arranged in parallel, a handle provided between the two support members, and unlocking members provided at both ends of the handle. The support members are provided on the upper slide rail. The upper end of at least one of the support members is bent to form a blocking piece. The unlocking member is used to press the positioning pin of the locking assembly, and the blocking piece is used to limit the unlocking member. A torsion spring may be provided between the support member and the handle.

7. A manual slide rail for an automotive seat according to claim 6, characterized in that: The unlocking assembly further includes a rotating bushing provided on the support member, and the end of the handle is provided on the rotating bushing.

8. A manual slide rail for an automotive seat according to claim 6, characterized in that: The unlocking member includes a rotating piece and an unlocking rod. The rotating piece is provided on the handle, the unlocking rod is provided on the rotating piece, and a through groove for the unlocking rod to pass through is provided on the support member.

9. A manual slide rail for an automotive seat according to claim 8, wherein: One end of the torsion spring is bent and clamped on the support member, and the other end of the torsion spring is bent and clamped on the rotating piece.

10. A manual slide rail for an automotive seat according to claim 6, characterized in that: A sound-absorbing pad is provided on the blocking piece.

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