A slide rail position and backrest angle recognition interlocking mechanism seat

By using a cam assembly and a brake cable system to achieve mechanical interlocking between the slide rail position and the backrest angle, the problems of complex structure and misoperation in existing seat mechanisms are solved, and simple and convenient multi-directional adjustment and locking functions are realized.

CN117416262BActive Publication Date: 2026-06-05CHANGCHUN FAWAY ADIENT AUTOMOTIVE SYST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN FAWAY ADIENT AUTOMOTIVE SYST CO LTD
Filing Date
2023-09-01
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing seat back slide rail linkage unlocking mechanism has a complex structure, limited application scenarios, and is prone to misoperation.

Method used

A simple cam assembly and brake cable system are used to achieve mechanical interlocking between the slide rail position and the backrest angle. The rotational movement of the hinge plate and locking block is used to identify and lock the slide rail position and backrest angle, thus avoiding misoperation.

Benefits of technology

The structure has been simplified, the ease of operation has been improved, multi-directional adjustment needs have been met, misoperation has been prevented, and it is suitable for stroke adjustment in different areas.

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Abstract

The application discloses a slide rail position and backrest angle recognition interlocking mechanism seat, belongs to the technical field of automobile seats, and comprises a backrest, a seat framework, a first slide rail and an interlocking mechanism, the backrest is hingedly connected with the seat framework through a shaft, the near-ground end of the seat framework is slidably connected with the first slide rail, first shafts are provided with hinged discs at two ends, one of the hinged discs is provided with a first interlocking mechanism, and the first slide rail is provided with a second interlocking mechanism; the device is simple in structure, flexible in assembly, and independent of electrical components; the stroke only depends on the relative position of components, if there is a change requirement, the components do not need to be changed, and module management can be achieved; the cam components are all composed of simple stamping structures, the process is simple, and the cost is low; the position and control module can be designed into an automatic position and angle recognition mechanical interlocking mechanism according to actual needs, is safe and controllable, prevents misoperation, and is convenient to operate.
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Description

Technical Field

[0001] This invention belongs to the field of automotive seat technology, specifically a seat with a sliding rail position and backrest angle recognition and interlocking mechanism. Background Technology

[0002] Patent No. CN201911208085.1 discloses an invention patent entitled "A Seat Backrest Slide Rail Linkage Unlocking Mechanism and Vehicle". Its problems are as follows: the mechanism can only realize the linkage unlocking of the backrest slide rail and does not have other functions, and the application scenario is limited; it is composed of multiple parts, and the structure is complex and poor; it is large in size and inconvenient to match.

[0003] Patent No. CN201110069099.7 discloses an invention patent entitled "A Seat with Easy Access Function". Its problems are as follows: the mechanism only has the function of unlocking the backrest and the slide rail simultaneously, and does not have other functions, so the application scenarios are limited; an additional operating handle is required; and it is easy to cause misoperation for customers who are not familiar with the function. Summary of the Invention

[0004] To address the above problems, this invention provides a seat with a slide rail position and backrest angle recognition interlocking mechanism, including a backrest, a seat frame, a first slide rail, and an interlocking mechanism. The backrest and seat frame are hinged together by a shaft, and the near-ground end of the seat frame is slidably connected to the first slide rail. Hinge plates are provided at both ends of the first shaft, one of which has a first interlocking mechanism, and the first slide rail has a second interlocking mechanism. This invention features a simple structure, flexible assembly, and does not rely on electrical components. The stroke depends only on the relative positions of the components; changes in requirements do not require component modifications, enabling modular management. The cam components are all constructed from simple stamping plates, resulting in simple manufacturing processes and low costs. The position and control module can be designed as an automatic position and angle recognition mechanical interlocking mechanism according to actual needs, ensuring safety, controllability, prevention of misoperation, and convenient operation.

[0005] The technical solution of the present invention is as follows: a seat with a sliding rail position and backrest angle recognition interlocking mechanism, comprising: a backrest, a seat frame, a first sliding rail and an interlocking mechanism, wherein the backrest and the seat frame are hinged together by a shaft, the near-ground end of the seat frame is slidably connected to the first sliding rail, and the two ends of the first shaft are provided with hinge plates, one of the hinge plates is provided with a first interlocking mechanism, and the first sliding rail is provided with a second interlocking mechanism.

[0006] The interlocking mechanism includes a first interlocking mechanism and a second interlocking mechanism.

[0007] The first interlocking mechanism includes a first locking block and a second locking block. The centers of the first locking block and the second locking block are connected to the hinge plate. Both the first locking block and the second locking block can rotate around their respective centers. One end of the first locking block is connected to the third locking block through a first gate line. The other end of the first locking block limits one end of the second locking block. The other end of the second locking block is connected to the fourth locking block through a second gate line.

[0008] The second interlocking mechanism includes a third locking block, a fourth locking block, and a fifth locking block. The centers of the third locking block, the fourth locking block, and the fifth locking block are connected to the first slide rail. The third locking block, the fourth locking block, and the fifth locking block can all rotate about their respective centers.

[0009] In the locked state, the first locking block is perpendicular to the second locking block, and the second locking block will be back-limited.

[0010] In the unlocked state, the seat frame slides along the first slide rail, the seat frame pushes the third locking block, the movement of the third locking block drives the first brake cable to move, the first brake cable drives the first locking block to move, the second locking block rotates around the center, the first locking block and the second locking block are no longer interlocked, the backrest presses the second locking block to move, drives the second brake cable to move, the second brake cable drives the fourth locking block to move, the fourth locking block limits the fifth locking block, the fifth locking block limits the seat frame.

[0011] When locking again, reset the backrest, move the second locking block to move the second brake cable, the second brake cable moves the fourth locking block to unlock the fifth locking block, push the seat frame back, the second locking block moves the first locking block to the locked state, the first locking block moves the first brake cable to move, and the first brake cable resets the third locking block.

[0012] Furthermore, the hinge plate is equipped with a limit block.

[0013] Furthermore, when locked, the maximum backrest angle is 16°.

[0014] Furthermore, when unlocked, the maximum backrest angle is 70°.

[0015] Furthermore, it also includes a second slide rail, with the first slide rail and the second slide rail being slidably connected.

[0016] Furthermore, the first slide rail and the second slide rail move in perpendicular directions.

[0017] The beneficial effects of this invention are as follows:

[0018] This invention consists of two sets of brake lines and a cam system. It features a simple structure and flexible assembly. It identifies the sliding rail adjustment position and backrest angle adjustment position without relying on electrical components, and uses cams for mechanical interlocking to prevent misoperation, greatly improving operational convenience. This control module is specifically designed for the environmental segmentation requirements of the cockpit space, enabling adjustments of specific travel distances in different areas. This invention fulfills the need for multi-directional but different adjustment travel distance identification and locking of high-end seats (not limited to automobiles), significantly improving operational convenience. Currently, only related patents exist for seat-back linkage and easy entry functions; this patent's mechanism for achieving travel distance identification and interlocking is the first of its kind. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the seat of the present invention.

[0020] Figure 2 for Figure 1 Enlarged view of a specific area.

[0021] Figure 3 This is a schematic diagram of the structure of the present invention viewed from below.

[0022] Figure 4 for Figure 2 Enlarged view of a specific area.

[0023] In the picture:

[0024] 1 Backrest, 2 Seat frame, 3 First slide rail, 4 Second slide rail, 5 Hinge plate, 6 First interlock mechanism, 7 Second interlock mechanism, 8 First brake line, 9 Second brake line, 501 Limit block, 601 First locking block, 602 Second locking block, 701 Third locking block, 702 Fourth locking block, 703 Fifth locking block. Detailed Implementation

[0025] It should be noted that in the description of this invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., 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.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; a connection can be a mechanical connection or an electrical connection; a link can be a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] The length direction of the vehicle is the X-axis, the width direction is the Y-axis, and the perpendicular direction to the XY-axis is the Z-axis.

[0028] A seat with a slide rail position and backrest angle recognition interlocking mechanism includes a backrest 1, a seat frame 2, a first slide rail 3, a second slide rail 4, and an interlocking mechanism. The backrest 1 and the seat frame 2 are hinged together by a shaft. The near-ground end of the seat frame 2 is slidably connected to the first slide rail 3. The first slide rail 3 and the second slide rail 4 are slidably connected. The movement directions of the first slide rail 3 and the second slide rail 4 are perpendicular. The two ends of the first shaft are provided with hinge plates 5. The hinge plates 5 are provided with limit blocks 501. One of the hinge plates 5 is provided with a first interlocking mechanism 6, and the first slide rail 3 is provided with a second interlocking mechanism 7.

[0029] The interlocking mechanism includes a first interlocking mechanism 6 and a second interlocking mechanism 7.

[0030] The first interlocking mechanism 6 includes a first locking block 601 and a second locking block 602. The centers of the first locking block 601 and the second locking block 602 are connected to the hinge plate 5. Both the first locking block 601 and the second locking block 602 can rotate about their respective centers. One end of the first locking block 601 is connected to the third locking block 701 through the first brake line 8. The other end of the first locking block 601 limits one end of the second locking block 602. The other end of the second locking block 602 is connected to the fourth locking block 702 through the second brake line 9.

[0031] The second interlocking mechanism includes a third locking block 701, a fourth locking block 702 and a fifth locking block 703. The centers of the third locking block 701, the fourth locking block 702 and the fifth locking block 703 are connected to the first slide rail 3. The third locking block 701, the fourth locking block 702 and the fifth locking block 703 can all rotate about their respective centers.

[0032] In the locked state, the first locking block 601 is perpendicular to the second locking block 602, and the second locking block 601 limits the backrest 1; the backrest 1 can move at a maximum angle of 16°.

[0033] In the unlocked state, the seat frame 2 slides along the first slide rail 3, the seat frame 2 pushes the third locking block 701, the movement of the third locking block 701 drives the first brake line 8 to move, the first brake line 8 drives the first locking block 601 to move, the second locking block 601 rotates around the center, the first locking block 601 and the second locking block 602 are no longer interlocked, the backrest 1 presses the second locking block 602 to move, drives the second brake line 9 to move, the second brake line 9 drives the fourth locking block 702 to move, the fourth locking block 702 limits the fifth locking block 703, the fifth locking block 703 limits the seat frame 2, the backrest 1 is limited to the limiting block 501 of the hinge plate 5, the backrest 1 moves at a maximum angle of 70°.

[0034] When locking again, reset the backrest 1, move the second locking block 602, drive the second brake cable 9 to move, the second brake cable 9 drives the fourth locking block 702 to move, unlock the fifth locking block 701, push back the seat frame 2, the second locking block 602 drives the first locking block 601 to move to the locked state, the first locking block 601 drives the first brake cable 8 to move, and the first brake cable 8 drives the third locking block 701 to reset.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A seat with a slide rail position and backrest angle recognition interlocking mechanism, characterized in that, include: The backrest, seat frame, first slide rail and interlocking mechanism are provided. The backrest and seat frame are hinged by a shaft. The seat frame near the ground is slidably connected to the first slide rail. The two ends of the shaft are provided with hinge plates. The two ends of the hinge plates are provided with limit blocks. One of the hinge plates is provided with a first interlocking mechanism and the first slide rail is provided with a second interlocking mechanism. The interlocking mechanism includes a first interlocking mechanism and a second interlocking mechanism. The first interlocking mechanism includes a first locking block and a second locking block. The centers of the first locking block and the second locking block are connected to the hinge plate. Both the first locking block and the second locking block can rotate around their respective centers. One end of the first locking block is connected to the third locking block through a first gate line. The other end of the first locking block limits one end of the second locking block. The other end of the second locking block is connected to the fourth locking block through a second gate line. The second interlocking mechanism includes a third locking block, a fourth locking block, and a fifth locking block. The centers of the third locking block, the fourth locking block, and the fifth locking block are connected to the first slide rail. The third locking block, the fourth locking block, and the fifth locking block can all rotate about their respective centers. In the locked state, the first locking block is perpendicular to the second locking block, and the second locking block will be back-limited. In the unlocked state, the seat frame slides along the first slide rail, the seat frame pushes the third locking block, the movement of the third locking block drives the first brake cable to move, the first brake cable drives the first locking block to move, the first locking block rotates around the center, the first locking block and the second locking block are no longer interlocked, the backrest presses the second locking block to move, drives the second brake cable to move, the second brake cable drives the fourth locking block to move, the fourth locking block limits the fifth locking block, the fifth locking block limits the seat frame, and the backrest is limited to the limiting block of the hinge plate.

2. The seat with a slide rail position and backrest angle recognition interlocking mechanism as described in claim 1, characterized in that, When locked, the maximum backrest angle is 16°.

3. A seat with a slide rail position and backrest angle recognition interlocking mechanism as described in claim 1, characterized in that, The hinge plate is equipped with a limiting block.

4. A seat with a slide rail position and backrest angle recognition interlocking mechanism as described in claim 3, characterized in that, When unlocked, the maximum backrest angle is 70°.

5. A seat with a slide rail position and backrest angle recognition interlocking mechanism as described in any one of claims 1 to 4, characterized in that, It also includes a second slide rail, with the first slide rail and the second slide rail being slidably connected.

6. A seat with a slide rail position and backrest angle recognition interlocking mechanism as described in claim 5, characterized in that... The first slide rail and the second slide rail move in opposite directions.