High-strength retainer for automobile seat slide rail
By designing a cylindrical retainer with staggered rectangular oil reservoirs at its top and bottom, the shortcomings of traditional retainers in terms of high durability and sliding force control are solved, achieving high durability and smooth sliding performance, and improving the stability and responsiveness of the seat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional automotive seat rail retainers are inadequate in terms of high durability and sliding force control, especially in commercial vehicles or models where seat positions are frequently adjusted, and cannot meet the high durability requirements of modern automobiles.
Design a high-strength retainer for automotive seat slide rails, with the top and bottom ends in the shape of round bars. Lubricant is applied to the retainer, and rectangular oil reservoirs are set along the length direction. The oil reservoirs are staggered to distribute the lubricant evenly, thereby improving the smoothness of sliding and wear resistance.
It achieves high durability (more than 50,000 sliding operations) and excellent sliding performance, improving the stability and response speed of the seat and ensuring the smoothness and stability of the slide rail system in various usage scenarios.
Smart Images

Figure CN223989966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, and in particular to a high-strength retainer for automotive seat slide rails. Background Technology
[0002] The main function of traditional car seat rail retainers is to support the inner and outer rails, and to use built-in steel balls to assist in support and control sliding force, such as... Figure 1 As shown. The size of the steel ball directly affects the sliding resistance of the slide rail, but traditional designs have limitations in terms of durability and sliding force control, especially when facing the high durability requirements of modern automotive seating systems (such as durability testing cycles exceeding 50,000). Ordinary slide rails have lower durability requirements, typically less than 20,000 cycles, but in high-intensity usage environments, such as commercial vehicles or models with frequent seat position adjustments, the performance of traditional retainers often fails to meet the demands. Utility Model Content
[0003] In view of the problems existing in the prior art, the present invention aims to provide a high-strength retainer for automotive seat slide rails to improve the strength and durability of the retainer and meet the requirements of modern automotive seat systems for modal enhancement and higher durability.
[0004] To achieve the above objectives, this utility model proposes a high-strength retainer for automotive seat slide rails. The retainer is supported between the inner slide rail and the outer slide rail. The top and bottom ends of the retainer are both cylindrical and fit against the walls of the inner and outer slide rails. The middle part of the retainer is plate-shaped and located between the side of the inner slide rail and the side of the outer slide rail. The top and bottom surfaces of the retainer are coated with lubricating oil, and several oil storage grooves are provided along their length on the top and bottom surfaces, storing lubricating oil in the oil storage grooves.
[0005] In the above design, two rows of oil reservoirs are provided along the length of the top and bottom surfaces of the cage. One row of oil reservoirs is close to the wall of the inner slide rail, and the other row is close to the wall of the outer slide rail. This two-row design allows the lubricating oil to be distributed more evenly on the top and bottom surfaces of the cage, especially in critical areas near the walls of the inner and outer slide rails. This distribution helps reduce friction between the slide rail and the cage, improving the smoothness and efficiency of sliding.
[0006] In the above scheme, the oil reservoirs at the top and bottom of the cage are arranged alternately to ensure that the lubricating oil is distributed more evenly throughout the slide rail system.
[0007] In the above scheme: the oil storage tank is a rectangular tank, which has a simple structure and is easy to process.
[0008] In the above scheme, the depth of the oil storage tank is 0.2mm-0.6mm. A depth within this range allows for the reasonable storage of an appropriate amount of lubricating oil, preventing insufficient oil storage due to shallow depth, and avoiding material waste or impact on the structural strength of the cage due to excessive depth.
[0009] The beneficial effects of this utility model are:
[0010] 1. Compared to traditional cages, this cage boasts superior wear resistance and fatigue resistance, capable of withstanding long-term, high-frequency sliding operations without easily breaking down, meeting high durability requirements (greater than 50,000 cycles) and ensuring excellent performance and stability of the seat slide rail system in various usage scenarios. 2. The high-strength cage design helps improve the overall modality of the seat, i.e., the stability and response speed of the seat under external forces. 3. Lubricating oil is applied to the top and bottom surfaces of the cage, and several oil reservoirs are provided along its length to effectively store lubricating oil, ensuring continuous lubrication of the slide rail during movement. 4. By designing the size of the cylindrical bar in the cage body, the sliding force can be controlled, ensuring smooth seat adjustments. Attached Figure Description
[0011] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0012] Figure 1 This is a schematic diagram of a traditional cage.
[0013] Figure 2 This is an exploded diagram of the seat rail.
[0014] Figure 3 This is a schematic diagram of the structure of this utility model.
[0015] Figure 4 yes Figure 3 A diagram from another angle. Detailed Implementation
[0016] like Figure 2 As shown in Figure 4, a high-strength retainer for automotive seat slide rails is provided, with the retainer 1 supported between the inner slide rail 3 and the outer slide rail 4.
[0017] The top and bottom of the retainer 1 are both rod-shaped, and both are attached to the walls of the inner slide rail 3 and the outer slide rail 4. The middle part of the retainer 1 is plate-shaped, and its middle part is located between the side of the inner slide rail 3 and the side of the outer slide rail 4.
[0018] The top and bottom surfaces of the cage 1 are coated with lubricating oil, and several oil reservoirs 2 are provided along the length of the top and bottom surfaces, which store lubricating oil.
[0019] Specifically, two rows of oil reservoirs 2 are provided along the length of the top and bottom surfaces of the cage 1. One row of oil reservoirs 2 is close to the wall of the inner slide rail 3, and the other row is close to the wall of the outer slide rail 4. This design of two rows of oil reservoirs 2 allows the lubricating oil to be distributed more evenly on the top and bottom surfaces of the cage 1, especially in key areas near the walls of the inner and outer slide rails 3 and 4. This distribution helps reduce friction between the slide rails and the cage 1, improving the smoothness and efficiency of sliding.
[0020] Compared to traditional cages, this cage 1 has excellent wear resistance and fatigue resistance, and can withstand long-term, high-frequency sliding operations without being easily damaged, meeting high durability requirements (greater than 50,000 cycles).
[0021] Ideally, the oil reservoirs 2 at the top and bottom of the cage 1 should be staggered to ensure that the lubricating oil is distributed more evenly throughout the slide rail system.
[0022] Ideally, the oil storage tank 2 should be a rectangular tank, which has a simple structure and is easy to process.
[0023] Ideally, the depth of the oil reservoir 2 should be 0.2mm-0.6mm. A depth of 0.2mm-0.6mm allows for the proper storage of an appropriate amount of lubricating oil, preventing both insufficient lubricating oil storage due to shallow depth and material waste or impact on the structural strength of the cage 1 due to excessive depth.
Claims
1. A high-strength holder for a car seat slide rail, the holder (1) being supported between an inner slide rail (3) and an outer slide rail (4), characterized in that: The top end and the bottom end of the holder (1) are in the shape of round bars, and are attached to the wall surface between the inner slide rail (3) and the outer slide rail (4); the middle part of the holder (1) is in the shape of a sheet, and is located between the side edge of the inner slide rail (3) and the side edge of the outer slide rail (4); the top end and the bottom end of the holder (1) are coated with lubricating oil, and a plurality of oil storage grooves (2) are arranged on the surface of the top end and the bottom end along the length direction; the oil storage grooves (2) store lubricating oil.
2. The high-strength retainer for an automobile seat slide rail according to claim 1, characterized by: Two rows of oil storage grooves (2) are arranged on the surface of the top end and the bottom end of the holder (1) along the length direction; one row of oil storage grooves (2) is close to the wall surface of the inner slide rail (3), and the other row of oil storage grooves (2) is close to the wall surface of the outer slide rail (4).
3. The high-strength retainer for an automobile seat slide rail according to claim 2, characterized by: The oil storage grooves (2) on the top end and the bottom end of the holder (1) are arranged alternately.
4. The high-strength retainer for an automobile seat slide rail according to claim 1, characterized by: The oil storage grooves (2) are rectangular grooves.
5. The high-strength retainer for an automobile seat slide rail according to claim 4, characterized by: The depth of the oil storage grooves (2) is 0.2-0.6 mm.