Zero-gravity automobile seat framework

By employing a motor drive and synchronizing rod in the zero-gravity car seat frame, the problems of high cost and poor stability in existing technologies are solved, the synchronization and stability of both ends of the seat cushion are improved, and the structure is simplified.

CN224117157UActive Publication Date: 2026-04-14长春富晟李尔汽车座椅系统有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing zero-gravity car seat frames require two motors for drive, resulting in high costs, large cumulative linkage errors, poor stability, and complex control.

Method used

A single motor drive combined with a synchronizing rod is used to synchronize the two ends of the seat cushion. The mature angle adjuster structure on the backrest is used to reduce the number of connecting rods, lower costs, and improve stability.

Benefits of technology

It improves the synchronization and stability of both ends of the seat cushion, saves a motor, reduces costs, simplifies the structure, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a zero-gravity automobile seat framework, which relates to the technical field of automobile seats and comprises a seat cushion base frame assembly and a seat cushion assembly, and the seat cushion base frame assembly is connected with the seat cushion assembly through a rear rotating component and a front-end zero-gravity driving component. The front-end zero-gravity driving assembly comprises a driving part, a synchronous rod connected with the driving part, an angle adjuster part connected with the synchronous rod, a driving connecting rod rotationally connected with the angle adjuster part and a fixing plate rotationally connected with the driving connecting rod, and the fixing plate is fixedly connected with the cushion assembly; according to the zero-gravity automobile seat framework, zero-gravity adjustment of the front end is achieved by adopting a relatively mature recliner structure commonly used on the backrest and driving of one motor, synchronization of the two ends of the seat cushion is achieved through the synchronizing rod, the occupied size is small, one motor is saved, cost is greatly reduced, connecting rod data are reduced, and synchronism and stability are high; the structure is simple.
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Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a zero-gravity automotive seat frame. Background Technology

[0002] In previous technologies, zero-gravity seat frames typically featured a rotating shaft at the rear of the seat cushion, with multiple drive methods at the front. One method used a lead screw motor to drive a linkage, rotating the entire seat cushion upwards to achieve zero-gravity adjustment. Another method used a high-speed motor with gears to drive a geared motor, which in turn drove the linkage to rotate the entire seat cushion upwards for zero-gravity adjustment. Both methods usually required two motors to balance the imbalance at both ends of the seat cushion. Furthermore, due to the numerous linkages, the accumulated errors between them were relatively large, resulting in gap wobble, a poor user experience, higher costs, and more complex control and adjustment.

[0003] Therefore, a zero-gravity car seat frame needs to be designed to improve the above problems. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a zero-gravity car seat frame that is driven by a single motor and synchronized at both ends of the seat cushion via a synchronizing rod. This saves on the need for a single motor, significantly reducing costs, minimizing the number of connecting rods, resulting in high stability and a simple structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A zero-gravity car seat frame includes a seat cushion base frame assembly and a seat cushion assembly. The seat cushion base frame assembly and the seat cushion assembly are connected by a rear rotating component and a front zero-gravity drive component. The front zero-gravity drive component includes a drive unit, a synchronizing rod connected to the drive unit, an adjuster unit connected to the synchronizing rod, a drive linkage rotatably connected to the adjuster unit, and a fixing plate rotatably connected to the drive linkage. The fixing plate is fixedly connected to the seat cushion assembly.

[0007] As a preferred embodiment of this utility model, the angle adjuster includes a lower fixing plate, an angle adjuster, and an upper lifting arm, with the upper lifting arm connected to a drive linkage.

[0008] As a preferred embodiment of this invention, a stabilizing bar is provided between the two front-end zero-gravity drive components.

[0009] As a preferred embodiment of this invention, the drive unit is an electric motor.

[0010] As a preferred embodiment of this invention, the seat cushion base frame assembly is mounted on the seat long slide rail.

[0011] As a preferred embodiment of this utility model, the rear rotating assembly includes a lower connecting plate and an upper connecting plate rotatably connected to the lower connecting plate. The lower connecting plate is connected to the seat cushion base frame assembly, and the upper connecting plate is connected to the seat cushion assembly.

[0012] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are:

[0013] This utility model discloses a zero-gravity car seat frame, which adopts a relatively mature adjustable angle mechanism commonly used on the backrest and a motor drive to achieve zero-gravity adjustment at the front end. The two ends of the seat cushion are synchronized through a synchronizing rod. It occupies a small volume, saves a motor, reduces costs significantly, reduces the number of linkage data, has high synchronization and stability, and has a simple structure. Attached Figure Description

[0014] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention. In the drawings:

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a perspective view of the seat cushion base frame assembly of this utility model;

[0017] Figure 3 This is a perspective view of the seat cushion assembly of this utility model;

[0018] Figure 4 This is a perspective view of the rear rotating component and the front zero-gravity drive component of this utility model;

[0019] Figure 5 This is another perspective view of the present invention;

[0020] The reference numerals in the accompanying drawings include: seat base frame assembly 1, seat assembly 2, rear rotating assembly 3, front zero gravity drive assembly 4, stabilizer bar 5, lower connecting plate 31, upper connecting plate 32, drive unit 41, synchronizing rod 42, angle adjuster unit 43, drive connecting rod 44, fixing plate 45, lower fixing plate of angle adjuster 431, and upper lifting arm of angle adjuster 432. Detailed Implementation

[0021] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Reference Figures 1 to 5 , Figure 1 This is a perspective view of the present invention. Figure 2 This is a perspective view of the seat cushion base frame assembly of this utility model. Figure 3 This is a perspective view of the seat cushion assembly of this utility model. Figure 4 This is a perspective view of the rear rotating assembly and the front zero-gravity drive assembly of this utility model. Figure 5This is another perspective view of the present invention. The present invention provides a zero-gravity car seat frame, including a seat cushion base frame assembly 1, a seat cushion assembly 2, a rear rotating component 3, a front zero-gravity drive component 4, and a stabilizer bar 5. The seat cushion base frame assembly 1 is mounted on a long seat slide rail. The seat cushion base frame assembly 1 and the seat cushion assembly 2 are connected via the rear rotating component 3 and the front zero-gravity drive component 4. A stabilizer bar 5 is provided between the two front zero-gravity drive components 4. The rear rotating component 3 includes a lower connecting plate 31 and an upper connecting plate 32 rotatably connected to the lower connecting plate 31. The lower connecting plate 31 is connected to the seat cushion base frame assembly 1, and the upper connecting plate 32 is rotatably connected to the upper connecting plate 31. 2 is connected to the seat cushion assembly 2. The front zero-gravity drive component 4 includes a drive unit 41, a synchronizing rod 42 connected to the drive unit 41, an adjuster unit 43 connected to the synchronizing rod 42, a drive link 44 rotatably connected to the adjuster unit 43, and a fixing plate 45 rotatably connected to the drive link 44. The fixing plate 45 is fixedly connected to the seat cushion assembly 2. The drive unit 41 is preferably a motor. The adjuster unit 43 includes a lower fixing plate 431 for the adjuster, an adjuster (not shown), and an upper lifting arm 432 for the adjuster. The adjuster is disposed between the lower fixing plate 431 for the adjuster and the upper lifting arm 432 for the adjuster. The upper lifting arm 432 for the adjuster is connected to the drive link 44.

[0026] The following will refer to Figures 1 to 5 The working principle of this utility model will be explained.

[0027] The drive unit 41 is connected to the adjuster unit 43 via a synchronizing rod 42. Rotation of the drive unit 41 drives the synchronizing rod 42 to rotate, which in turn drives the adjuster to rotate. The adjuster then moves the upper lifting arm 432, which in turn moves the drive linkage 44. The rear rotating assembly 3 follows suit, thereby achieving zero-gravity lifting of the seat cushion. This invention provides a zero-gravity car seat frame that utilizes a commonly used and mature adjuster structure on the backrest and a motor drive to achieve zero-gravity adjustment at the front end. Synchronization at both ends of the seat cushion is achieved via the synchronizing rod, resulting in a small footprint, saving the need for a motor, significantly reducing costs, reducing linkage data, and providing high synchronization and stability with a simple structure.

[0028] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A zero-gravity automotive seat framework, characterized by, The device includes a seat base frame assembly and a seat assembly. The seat base frame assembly and the seat assembly are connected by a rear rotating component and a front zero-gravity drive component. The front zero-gravity drive component includes a drive unit, a synchronizing rod connected to the drive unit, an adjuster unit connected to the synchronizing rod, a drive linkage rotatably connected to the adjuster unit, and a fixing plate rotatably connected to the drive linkage. The fixing plate is fixedly connected to the seat assembly.

2. The zero-gravity car seat frame according to claim 1, characterized in that, The angle adjuster unit includes a lower fixing plate for the angle adjuster, the angle adjuster, and an upper lifting arm for the angle adjuster, with the upper lifting arm connected to the drive linkage.

3. The zero-gravity car seat frame according to claim 1, characterized in that, A stabilizing bar is provided between the two front-end zero-gravity drive components.

4. The zero-gravity car seat frame according to claim 1, characterized in that, The drive unit is an electric motor.

5. A zero-gravity car seat frame according to claim 1, characterized in that, The seat base frame assembly is mounted on the long slide rail of the seat.

6. A zero-gravity car seat frame according to claim 1, characterized in that, The rear rotating assembly includes a lower connecting plate and an upper connecting plate rotatably connected to the lower connecting plate. The lower connecting plate is connected to the seat base frame assembly, and the upper connecting plate is connected to the seat assembly.