Long slide rail with improved lateral play
By installing rollers and elastic support components on both sides of the upper slide rail of the car seat, and using drive components and elastic retaining elements to limit the lateral swaying of the upper slide rail, the problem of swaying caused by wear of the limit block is solved, and the smoothness and stability of seat adjustment are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YANPU METAL PROD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-06-23
AI Technical Summary
Existing long slide rails for car seats experience increased sliding resistance and wobbling due to wear of the limit blocks during use, affecting the smoothness and stability of seat adjustment.
The upper slide rail is equipped with rollers and elastic support components on both sides. The upper slide rail is driven to move by the drive component. The elastic support component abuts against the first baffle. The elastic retainer drives the support wheel to press against the baffle, which limits the lateral sway of the upper slide rail. The stability is further improved by the cooperation of the limit block and the second baffle.
It effectively suppresses lateral swaying of the upper slide rail, improves the smoothness and stability of seat adjustment, reduces friction, and extends service life.
Smart Images
Figure CN224392407U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of seat slide rail technology, and in particular to a long slide rail for improving lateral loosening. Background Technology
[0002] The long slide rail of a car seat is a core component of the seat adjustment system, made of high-strength steel. It uses ball bearings or a slider structure to ensure smooth and precise forward and backward movement of the seat.
[0003] Currently, car seat slide rails consist of an upper slide rail and a lower slide rail. The lower slide rail is fixedly installed on the car floor, while the upper slide rail is fixedly installed under the seat. The upper slide rail is installed inside the lower slide rail and is driven by a drive assembly to reciprocate within the lower slide rail. Plastic limiting blocks are installed on both opposite side walls of the upper slide rail, and these two limiting blocks abut against the opposite inner side walls of the lower slide rail. During the movement of the upper slide rail, the two limiting blocks abut against the inner walls of the lower slide rail, thereby limiting the movement of the upper slide rail and making its movement more stable.
[0004] There is sliding friction between the plastic limiting block and the inner wall of the lower slide rail, which increases the sliding resistance of the lower slide rail and affects the smoothness of seat adjustment. At the same time, after prolonged use, the limiting block will wear down, resulting in a larger gap between the limiting block and the inner wall of the lower slide rail. This makes the upper slide rail prone to shaking or even abnormal noise during movement. Utility Model Content
[0005] To improve the smoothness and stability of seat adjustment, this application provides a long slide rail to improve lateral looseness.
[0006] The technical solution provided in this application for improving lateral loosening of long slide rails is as follows:
[0007] A long slide rail for improving lateral looseness includes an upper slide rail, a lower slide rail, and a drive assembly. Rollers are rotatably arranged on both sides of the upper slide rail, and the rollers are rolled within the lower slide rail. The drive assembly is disposed within the upper and lower slide rails and is used to drive the upper slide rail to reciprocate within the lower slide rail. Elastic support components are provided on opposite sides of the upper slide rail, and first baffles are bent on opposite sides of the lower slide rail. The two elastic support components respectively abut against the two first baffles and are used to limit the lateral swaying of the upper slide rail.
[0008] By adopting the above technical solution, the drive component drives the upper slide rail to move. Under the action of the roller, the upper slide rail slides smoothly in the lower slide rail. During the sliding process of the upper slide rail, it drives the elastic support components on both sides to move. The elastic support components abut against the first baffle, thereby limiting the upper slide rail and making it less prone to lateral swaying, thus improving the smoothness and stability of seat adjustment.
[0009] Preferably, the elastic support assembly includes a support wheel, a rotating plate, and an elastic retainer. The rotating plate is rotatably mounted on the upper slide rail, the support wheel is rotatably mounted on the rotating plate, and the elastic retainer is mounted on the upper slide rail. The end of the elastic retainer abuts against the rotating plate and is used to drive the rotating plate to rotate upward. The tops of the two first baffles are inclined towards each other, and the two support wheels abut against the side walls of the two first baffles that are close to each other along a direction perpendicular to the two first baffles.
[0010] By adopting the above technical solution, when the upper slide rail moves, it drives the rotating plate and the elastic retainer to move together. The elastic retainer drives the support wheel to move upward through the rotating plate and makes the support wheel abut against the first baffle. Under the action of elastic force, the support wheel can always abut against the first baffle. When the two support wheels abut against the two first baffles together, the support wheels limit the upper slide rail, making it less likely for the upper slide rail to sway laterally when it slides.
[0011] Preferably, two limiting buckles in opposite directions are provided on the side of the upper slide rail, one end of the elastic retainer is engaged in the two limiting buckles, and the other end of the elastic retainer abuts against the bottom of the rotating plate.
[0012] By adopting the above technical solution, two limiting buckles are used to limit and fix one end of the elastic retainer, thereby facilitating the disassembly, maintenance and replacement of the elastic retainer.
[0013] Preferably, the upper slide rail is bent on both sides to form a first flange, the first flange is perpendicular to the first baffle, and the rotating plate is rotatably mounted on the first flange.
[0014] By adopting the above technical solution, the first flange drives the rotating plate and the support wheel to tilt, thereby facilitating the support wheel to press against the first baffle in the direction perpendicular to the first baffle.
[0015] Preferably, the two first baffles are bent to form second baffles on the sides that are close to each other, and the upper slide rail is bent to form second flanges on the opposite sides. The two second flanges are located on the sides that are far apart from each other. Limiting blocks are provided on the second flanges. The top of the limiting blocks abuts against the connection between the first baffles and the second baffles, and the sides that are close to each other abut against the sidewalls that are far apart from each other of the two second baffles.
[0016] By adopting the above technical solution, the second flange drives the limiting block to move during the movement of the upper slide rail. The limiting block abuts against the second baffle, thereby limiting the upper slide rail and further improving the stability of the upper slide rail during movement.
[0017] Preferably, the limiting block is detachably sleeved on the second flange, and a slot is provided in the limiting block, into which the second flange is inserted.
[0018] By adopting the above technical solution, the limiting block can be detachably installed on the second flange, thereby facilitating the disassembly and replacement of the limiting block.
[0019] Preferably, slots are provided on both sides of the second flange, and buckles are provided on both sides of the limiting block, with the two buckles engaging in the two slots.
[0020] By adopting the above technical solution, the limiting block is installed using a buckle and slot structure, which facilitates the disassembly of the limiting block.
[0021] Preferably, multiple protrusions are formed on the top and side walls of the limiting block, and the protrusions abut against the second baffle.
[0022] By adopting the above technical solution, the limiting block abuts against the second baffle and limits the upper slide rail by protrusion. The protrusion reduces the friction between the limiting block and the second baffle, thereby improving the smoothness of the upper slide rail movement.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The upper slide rail is driven to move by the drive component. Under the action of the roller, the upper slide rail slides smoothly in the lower slide rail. During the sliding of the upper slide rail, the elastic support components on both sides move. The elastic support components abut against the first baffle, thereby limiting the upper slide rail and making it less prone to lateral swaying, thus improving the smoothness and stability of seat adjustment.
[0025] 2. When the upper slide rail moves, it drives the rotating plate and the elastic retainer to move together. The elastic retainer drives the support wheel to move upward through the rotating plate and makes the support wheel abut against the first baffle. Under the action of elastic force, the support wheel can always abut against the first baffle. When the two support wheels abut against the two first baffles together, the support wheels limit the upper slide rail, making it less likely for the upper slide rail to sway laterally when it slides.
[0026] 3. By means of the limiting block, the second flange drives the limiting block to move during the movement of the upper slide rail. The limiting block abuts against the second baffle, thereby limiting the upper slide rail and further improving the stability of the upper slide rail during movement. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of the improved laterally loose long slide rail in this application;
[0028] Figure 2 This is a partial structural diagram illustrating the improvement of the laterally loose long slide rail in this application;
[0029] Figure 3 For this application Figure 2Enlarged view of point A in the middle;
[0030] Figure 4 A side view of the overall structure of the improved laterally loose long slide rail in this application;
[0031] Figure 5 For this application Figure 4 Enlarged view of point B in the middle;
[0032] Figure 6 This is a partial structural cross-sectional view of the improved laterally loose long slide rail in this application.
[0033] Reference numerals: 1. Upper slide rail; 2. Lower slide rail; 3. Drive assembly; 4. Roller; 5. Elastic support assembly; 51. Support wheel; 52. Turning plate; 53. Elastic retaining element; 6. First baffle; 7. Limiting buckle; 8. First flange; 9. Second baffle; 10. Second flange; 11. Limiting block; 12. Slot; 13. Card slot; 14. Buckle; 15. Protrusion. Detailed Implementation
[0034] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.
[0035] This application discloses a long slide rail for improving lateral loosening.
[0036] Reference Figure 1 and Figure 2 A long slide rail for improving lateral looseness includes an upper slide rail 1, a lower slide rail 2, and a drive assembly 3. The upper slide rail 1 is installed inside the lower slide rail 2. Two rollers 4 are rotatably mounted on opposite side walls of the upper slide rail 1. The drive assembly 3 drives the upper slide rail 1 to reciprocate within the lower slide rail 2. The drive motor consists of a servo motor, a gearbox, and a lead screw. The servo motor is installed at the top of the upper slide rail 1, the lead screw is fixedly installed inside the lower slide rail 2, and the gearbox is installed at the bottom of the upper slide rail 1, with the gearbox drivingly connecting the servo motor and the lead screw.
[0037] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The upper slide rail 1 has two side walls that bend outwards to form first flanges 8 in the width direction, and the tops of the two first flanges 8 are inclined in a direction away from each other. Each first flange 8 has an elastic support assembly 5 installed at both ends in the length direction. The elastic support assembly 5 includes a support wheel 51, a rotating plate 52 and an elastic retainer 53.
[0038] The rotating plate 52 is rotatably mounted on the outer wall of the first flange 8 along the inclined direction of the first flange 8, and the support wheel 51 is rotatably mounted on the rotating plate 52 along the inclined direction of the first flange 8. Two limiting buckles 7 are formed on the first flange 8. The cross-section of the limiting buckles 7 is L-shaped, and the two limiting buckles 7 are in opposite directions.
[0039] One end of the elastic retainer 53 is detachably engaged within two limiting buckles 7. The end of the rotating plate 52 is bent into an L-shape, and the other end of the elastic retainer 53 abuts against the bottom of the bent end of the rotating plate 52. In this application, the elastic retainer 53 can be a long strip-shaped spring. The elastic retainer 53 drives the support wheel 51 to move upward via the rotating plate 52.
[0040] Both sides of the sliding rail 2 are bent to form first baffles 6. The tops of the two first baffles 6 are inclined toward each other, and the first baffles 6 are perpendicular to the first flange 8. The support wheel 51 abuts against the first baffle 6 in a direction perpendicular to the first baffle 6, and the four elastic retaining members 53 drive the four support wheels 51 to press against the side walls of the two first baffles 6 that are close to each other.
[0041] During its movement, the upper slide rail 1 drives the four rotating plates 52 and the elastic retaining members 53 to move together. Through the transmission of the rotating plates 52, the elastic retaining members 53 push the support wheels 51 upwards, causing them to press tightly against the inner surface of the first baffle 6. Under the action of the elastic retaining members 53, the support wheels 51 can continuously maintain contact pressure with the first baffle 6. When the four support wheels 51 respectively press against the first baffles 6 on both sides, an effective lateral constraint is formed, thereby significantly suppressing the lateral swaying generated by the upper slide rail 1 during sliding, improving the smoothness and stability of seat adjustment.
[0042] Reference Figure 2 , Figure 4 , Figure 5 and Figure 6 Both ends of the upper slide rail 1 in the width direction are bent to form a second flange 10, and the second flange 10 is set in the vertical direction. Each of the four second flanges 10 can be detachably fitted with a limiting block 11, and the side wall and top wall of the limiting block 11 are integrally formed with multiple protrusions 15.
[0043] The tops of the two first baffles 6 are bent toward each other to form a second baffle 9. The two second baffles 9 are arranged vertically, parallel to the second flange 10, and the four limiting blocks 11 are located on the two sides of the two second baffles 9 that are far apart from each other.
[0044] When the upper slide rail 1 moves smoothly within the lower slide rail 2, there is a gap between the protrusion 15 on the limiting block 11 and the second baffle 9, and the limiting block 11 and the second baffle 9 do not contact each other at this time. When the upper slide rail 1 moves unevenly within the lower slide rail 2, the elastic retainer 53 will undergo slight deformation, causing the upper slide rail 1 to deviate slightly. At this time, the limiting block 11 abuts against the second baffle 9 through the protrusion 15, thereby further improving the stability of the upper slide rail 1 during movement.
[0045] The limiting block 11 has a slot 12, and the second flange 10 is inserted into the limiting groove of the limiting block 11. Slots 13 are formed on the opposite side walls of the second flange 10, and buckles 14 are formed on the opposite sides of the limiting block 11 located in the limiting groove. The structure of the buckles 14 and slots 13 is used to install the limiting block 11, thereby facilitating the disassembly and replacement of the limiting block 11.
[0046] The implementation principle of a long slide rail that improves lateral looseness according to an embodiment of this application is as follows: the drive assembly 3 drives the upper slide rail 1 to reciprocate within the lower slide rail 2. During the movement, the upper slide rail 1 drives the four rotating plates 52 and the elastic retaining members 53 to move together. With the help of the transmission of the rotating plates 52, the elastic retaining members 53 push the support wheels 51 to move upward, so that they are in close contact with the inner surface of the first baffle 6. Under the action of the elastic retaining members 53, the support wheels 51 can maintain the contact pressure with the first baffle 6 continuously. When the four support wheels 51 are respectively pressed against the first baffle 6 on both sides, an effective lateral constraint is formed, thereby significantly suppressing the lateral swaying generated by the upper slide rail 1 during the sliding process, and improving the smoothness and stability of seat adjustment.
[0047] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. A long slide rail to improve lateral looseness, characterized by: The system includes an upper slide rail (1), a lower slide rail (2), and a drive assembly (3). Rollers (4) are rotatably provided on both sides of the upper slide rail (1). The rollers (4) are rolled within the lower slide rail (2). The drive assembly (3) is provided within the upper slide rail (1) and the lower slide rail (2) and is used to drive the upper slide rail (1) to reciprocate within the lower slide rail (2). Elastic support assemblies (5) are provided on both opposite sides of the upper slide rail (1). First baffles (6) are bent on both opposite sides of the lower slide rail (2). The two elastic support assemblies (5) respectively abut against the two first baffles (6) and are used to limit the lateral swaying of the upper slide rail (1).
2. The long slide rail for improving the lateral looseness according to claim 1, wherein: The elastic support assembly (5) includes a support wheel (51), a rotating plate (52), and an elastic retainer (53). The rotating plate (52) is rotatably mounted on the upper slide rail (1). The support wheel (51) is rotatably mounted on the rotating plate (52). The elastic retainer (53) is mounted on the upper slide rail (1). The end of the elastic retainer (53) abuts against the rotating plate (52) and is used to drive the rotating plate (52) to rotate upward. The tops of the two first baffles (6) are inclined toward each other. The two support wheels (51) abut against the side walls of the two first baffles (6) that are close to each other in a direction perpendicular to the two first baffles (6).
3. The long slide rail for improving the lateral looseness according to claim 2, wherein: The upper slide rail (1) has two limit buckles (7) with opposite directions on its side. One end of the elastic retainer (53) is engaged in the two limit buckles (7), and the other end of the elastic retainer (53) abuts against the bottom of the rotating plate (52).
4. The long slide rail for improving the lateral looseness according to claim 2, wherein: The upper slide rail (1) has a first flange (8) formed by bending on both sides. The first flange (8) is perpendicular to the first baffle (6). The rotating plate (52) is rotatably mounted on the first flange (8).
5. The long slide rail for improving the lateral looseness according to claim 2, wherein: The two first baffles (6) are bent to form second baffles (9) on the side that is close to each other. The upper slide rail (1) is bent to form second flanges (10) on both sides. The two second flanges (10) are located on the side that is far away from each other. Limiting blocks (11) are provided on the second flanges (10). The top of the limiting block (11) abuts against the connection between the first baffle (6) and the second baffle (9). The side that is close to each other abuts against the sidewalls that are far away from each other of the two second baffles (9).
6. The long slide rail for improving the lateral looseness according to claim 5, wherein: The limiting block (11) is detachably sleeved on the second flange (10), and a slot (12) is provided in the limiting block (11), and the second flange (10) is inserted into the slot (12).
7. The long slide rail for improving the lateral looseness according to claim 6, wherein: The second flange (10) has slots (13) on both sides, and buckles (14) are provided on both sides of the limiting block (11). The two buckles (14) are engaged in the two slots (13).
8. The long slide rail for improving the lateral looseness according to claim 5, wherein: Multiple protrusions (15) are formed on the top and side walls of the limiting block (11), and the protrusions (15) abut against the second baffle (9).