Automobile seat backrest frame skeleton structure

By designing a support and adjustment mechanism for the car seat back frame, the problem of the complexity and heavy weight of existing frame structures is solved, making it suitable for new energy vehicles and improving stability and practicality.

CN224409029UActive Publication Date: 2026-06-26NINGBO RUNNAN ELECTROMECHANICAL IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO RUNNAN ELECTROMECHANICAL IND CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing car seat backrest frames are complex and heavy, making them unsuitable for the needs of new energy vehicles.

Method used

A car seat backrest frame structure including a support mechanism and an adjustment mechanism was designed. The angle of the support mechanism can be adjusted by moving the support mechanism to improve its practicality. The support mechanism consists of a backrest frame assembly, a backrest curved tube assembly, a backrest lower horizontal tube assembly, and a backrest middle wire mesh frame assembly. The adjustment mechanism consists of outer and inner fixed brackets and a hinge assembly.

Benefits of technology

By adjusting the angle of the support mechanism, the stability and folding convenience of the car seat back frame are improved, enhancing passenger comfort and practicality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224409029U_ABST
    Figure CN224409029U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of car seat backrest, especially to car seat backrest frame skeleton structure, its to the angle of support mechanism is adjusted to the support mechanism, after the passenger's back leans on the support mechanism to improve the practicability of equipment, including support mechanism, still including adjusting mechanism, support mechanism installs on adjusting mechanism, the angle of adjusting mechanism is adjusted to support mechanism, and support mechanism supports the passenger's back.
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Description

Technical Field

[0001] This utility model relates to the technical field of automobile seat backrests, and in particular to the frame structure of automobile seat backrests. Background Technology

[0002] The backrest of a car seat is a component in a car used to support the back of the occupant. Existing car seat backrest frame structures, such as the MPV rear seat structure disclosed in invention application with publication number CN116118581A and the MPV rear armrest flipping mechanism disclosed in utility model patent with announcement number CN218805389U, can all provide support for the patient's back.

[0003] However, during use, it was found that the existing car seat back frame structure is relatively complex and heavy. Since the batteries in existing new energy vehicles are heavy, the weight of other components in the vehicle is controlled, making the existing car seat backs unsuitable for use in new energy vehicles. Therefore, there is an urgent need for a new car seat back frame structure to improve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a car seat backrest frame structure that improves the practicality of the device by adjusting the angle of the support mechanism by moving the support mechanism, and then allowing the occupant's back to rest against the support mechanism.

[0005] The present invention relates to a car seat backrest frame structure, which includes a support mechanism and an adjustment mechanism, wherein the support mechanism is mounted on the adjustment mechanism.

[0006] The adjustment mechanism adjusts the angle of the support mechanism, and the support mechanism supports the back of the occupant;

[0007] By manipulating the support mechanism, the angle of the support mechanism can be adjusted, and then the occupant can lean against the support mechanism, thereby improving the practicality of the equipment.

[0008] Preferably, the support mechanism includes a backrest frame assembly, a backrest curved tube assembly, two sets of lower backrest cross tube assemblies, and two sets of middle backrest wire mesh frame assemblies. The backrest frame assembly and the backrest curved tube assembly are both mounted on the adjustment mechanism. The two sets of lower backrest cross tube assemblies are respectively mounted at the bottom of the backrest curved tube assembly and the backrest frame assembly, and the two sets of middle backrest wire mesh frame assemblies are respectively mounted at the middle of the backrest curved tube assembly and the backrest frame assembly. The backrest frame assembly, in conjunction with the middle backrest wire mesh frame assembly, or the backrest curved tube assembly, in conjunction with the middle backrest wire mesh frame assembly, supports the occupant, thereby improving the stability of the car seat backrest frame structure.

[0009] Preferably, the backrest frame assembly includes a backrest frame one and a backrest frame two, with the backrest frame one mounted on the adjustment mechanism and the backrest frame two mounted on the backrest frame one; this facilitates the separate production of the backrest frame assembly and improves production convenience.

[0010] Preferably, the adjustment mechanism includes two sets of outer fixing brackets, two sets of inner fixing brackets, two sets of outer hinge assemblies, and two sets of inner hinge assemblies. The two sets of outer fixing brackets and two sets of inner fixing brackets are all mounted on the seat cushion frame. The two sets of outer hinge assemblies and two sets of inner hinge assemblies are respectively mounted on the bottom of the backrest curved tube assembly and the backrest frame, and are hinged to the two sets of outer fixing brackets and two sets of inner fixing brackets, respectively. By manipulating the backrest curved tube assembly and the backrest frame assembly, the backrest curved tube assembly and the backrest frame assembly rotate around the hinge points of the outer hinge assemblies and the outer fixing brackets, and the hinge points of the inner hinge assemblies and the inner fixing brackets, thereby adjusting the angle of the backrest curved tube assembly and the backrest frame assembly, thus improving the folding convenience of the car seat backrest frame structure.

[0011] Preferably, the top of the second backrest frame is provided with a backrest seat belt outlet bracket; this facilitates the installation of the seat belt.

[0012] Preferably, both the backrest curved tube assembly and the second backrest frame are provided with a backrest headrest bracket; this facilitates the installation of a headrest on the backrest curved tube assembly and the second backrest frame, improving passenger comfort.

[0013] Preferably, the backrest bending tube assembly, backrest frame one, and backrest frame two are all provided with mounting brackets; this facilitates the fixing of the backrest cover when installing it, thereby improving the practicality of the car seat backrest frame structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by moving the support mechanism, the angle of the support mechanism can be adjusted, and then the occupant's back can be leaned against the support mechanism, thereby improving the practicality of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the third isometric structure of this utility model;

[0018] Figure 4 This is a front view structural diagram of this utility model.

[0019] The following are labeled in the attached diagram: 1. Backrest curved tube assembly; 2. Backrest lower horizontal tube assembly; 3. Backrest middle wire mesh frame assembly; 4. Backrest frame one; 5. Backrest frame two; 6. Outer fixing bracket; 7. Inner fixing bracket; 8. Outer hinge assembly; 9. Inner hinge assembly; 10. Backrest safety belt exit bracket; 11. Backrest headrest bracket; 12. Mounting bracket. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 1 to 4 As shown, the car seat backrest frame structure includes a support mechanism and an adjustment mechanism, with the support mechanism mounted on the adjustment mechanism;

[0022] The adjustment mechanism adjusts the angle of the support mechanism, and the support mechanism supports the back of the occupant;

[0023] The support mechanism includes a backrest frame assembly, a backrest curved tube assembly 1, two sets of backrest lower horizontal tube assemblies 2, and two sets of backrest middle wire mesh frame assemblies 3. The backrest frame assembly and the backrest curved tube assembly 1 are both installed on the adjustment mechanism. The two sets of backrest lower horizontal tube assemblies 2 are respectively installed at the bottom of the backrest curved tube assembly 1 and the backrest frame assembly, and the two sets of backrest middle wire mesh frame assemblies 3 are respectively installed at the middle of the backrest curved tube assembly 1 and the backrest frame assembly.

[0024] The backrest frame assembly includes a backrest frame 4 and a backrest frame 5. The backrest frame 4 is mounted on the adjustment mechanism, and the backrest frame 5 is mounted on the backrest frame 4.

[0025] The adjustment mechanism includes two sets of outer fixing brackets 6, two sets of inner fixing brackets 7, two sets of outer hinge components 8, and two sets of inner hinge components 9. The two sets of outer fixing brackets 6 and the two sets of inner fixing brackets 7 are all installed on the seat cushion frame. The two sets of outer hinge components 8 and the two sets of inner hinge components 9 are respectively installed on the bottom of the backrest curved tube assembly 1 and the backrest frame 4, and the two sets of outer hinge components 8 and the two sets of inner hinge components 9 are respectively hinged to the two sets of outer fixing brackets 6 and the two sets of inner fixing brackets 7.

[0026] The top of the backrest frame 2 5 is provided with a backrest safety belt outlet bracket 10.

[0027] Both the backrest curved tube assembly 1 and the backrest frame 2 5 are equipped with backrest headrest brackets 11.

[0028] In use, by moving the backrest bending tube assembly 1 and the backrest frame assembly, the backrest bending tube assembly 1 and the backrest frame assembly are rotated around the hinge point between the outer hinge assembly 8 and the outer fixed bracket 6 and the hinge point between the inner hinge assembly 9 and the inner fixed bracket 7, thereby adjusting the angle of the backrest bending tube assembly 1 and the backrest frame assembly. After that, when the occupant sits on the seat, the backrest frame assembly, together with the backrest middle wire mesh frame assembly 3, or the backrest bending tube assembly 1, together with the backrest middle wire mesh frame assembly 3, supports the occupant, thereby improving the practicality of the car seat backrest frame structure. Example 2

[0029] like Figures 1 to 4 As shown, the car seat backrest frame structure includes a support mechanism and an adjustment mechanism, with the support mechanism mounted on the adjustment mechanism;

[0030] The adjustment mechanism adjusts the angle of the support mechanism, and the support mechanism supports the back of the occupant;

[0031] The support mechanism includes a backrest frame assembly, a backrest curved tube assembly 1, two sets of backrest lower horizontal tube assemblies 2, and two sets of backrest middle wire mesh frame assemblies 3. The backrest frame assembly and the backrest curved tube assembly 1 are both installed on the adjustment mechanism. The two sets of backrest lower horizontal tube assemblies 2 are respectively installed at the bottom of the backrest curved tube assembly 1 and the backrest frame assembly, and the two sets of backrest middle wire mesh frame assemblies 3 are respectively installed at the middle of the backrest curved tube assembly 1 and the backrest frame assembly.

[0032] The backrest frame assembly includes a backrest frame 4 and a backrest frame 5. The backrest frame 4 is mounted on the adjustment mechanism, and the backrest frame 5 is mounted on the backrest frame 4.

[0033] The adjustment mechanism includes two sets of outer fixing brackets 6, two sets of inner fixing brackets 7, two sets of outer hinge components 8, and two sets of inner hinge components 9. The two sets of outer fixing brackets 6 and the two sets of inner fixing brackets 7 are all installed on the seat cushion frame. The two sets of outer hinge components 8 and the two sets of inner hinge components 9 are respectively installed on the bottom of the backrest curved tube assembly 1 and the backrest frame 4, and the two sets of outer hinge components 8 and the two sets of inner hinge components 9 are respectively hinged to the two sets of outer fixing brackets 6 and the two sets of inner fixing brackets 7.

[0034] The top of the backrest frame 2 5 is provided with a backrest safety belt outlet bracket 10.

[0035] Both the backrest curved tube assembly 1 and the backrest frame 2 5 are equipped with backrest headrest brackets 11.

[0036] Mounting brackets 12 are provided on the backrest bending tube assembly 1, backrest frame one 4 and backrest frame two 5.

[0037] When installing the backrest cover, the backrest cover is fixed. In use, by moving the backrest bending tube assembly 1 and the backrest frame assembly, the backrest bending tube assembly 1 and the backrest frame assembly are rotated around the hinge point between the outer hinge assembly 8 and the outer fixed bracket 6 and the hinge point between the inner hinge assembly 9 and the inner fixed bracket 7 as the axis, thereby adjusting the angle of the backrest bending tube assembly 1 and the backrest frame assembly. After that, when the occupant sits on the seat, the occupant is supported by the backrest frame assembly and the backrest middle wire mesh frame assembly 3, or by the backrest bending tube assembly 1 and the backrest middle wire mesh frame assembly 3, thereby improving the practicality of the car seat backrest frame structure.

[0038] The backrest bending tube assembly 1 and the backrest middle steel wire mesh frame assembly 3 of the automobile seat backrest frame structure of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A backrest frame structure of a vehicle seat comprising a support mechanism; characterized by, It also includes an adjustment mechanism, with a support mechanism mounted on the adjustment mechanism; The adjustment mechanism adjusts the angle of the support mechanism, and the support mechanism supports the back of the occupant.

2. The automobile seat back frame structure according to claim 1, wherein The support mechanism includes a backrest frame assembly, a backrest curved tube assembly (1), two sets of backrest lower horizontal tube assemblies (2) and two sets of backrest middle wire mesh frame assemblies (3). The backrest frame assembly and the backrest curved tube assembly (1) are both installed on the adjustment mechanism. The two sets of backrest lower horizontal tube assemblies (2) are respectively installed at the bottom of the backrest curved tube assembly (1) and the backrest frame assembly. The two sets of backrest middle wire mesh frame assemblies (3) are respectively installed at the middle of the backrest curved tube assembly (1) and the backrest frame assembly.

3. The automobile seat back frame structure according to claim 2, wherein The backrest frame assembly includes a backrest frame one (4) and a backrest frame two (5). The backrest frame one (4) is mounted on the adjustment mechanism, and the backrest frame two (5) is mounted on the backrest frame one (4).

4. The automobile seat back frame structure according to claim 3, wherein The adjustment mechanism includes two sets of outer fixing brackets (6), two sets of inner fixing brackets (7), two sets of outer hinge components (8) and two sets of inner hinge components (9). The two sets of outer fixing brackets (6) and the two sets of inner fixing brackets (7) are all installed on the seat cushion frame. The two sets of outer hinge components (8) and the two sets of inner hinge components (9) are respectively installed on the bottom of the backrest curved tube assembly (1) and the backrest frame (4), and the two sets of outer hinge components (8) and the two sets of inner hinge components (9) are respectively hinged to the two sets of outer fixing brackets (6) and the two sets of inner fixing brackets (7).

5. The automobile seat back frame structure according to claim 3, wherein The top of the backrest frame 2 (5) is provided with a backrest seat belt outlet bracket (10).

6. The automobile seat back frame structure according to claim 3, wherein Both the backrest curved tube assembly (1) and the backrest frame 2 (5) are equipped with backrest headrest brackets (11).

7. The automobile seat back frame structure according to claim 3, wherein Mounting brackets (12) are provided on the backrest bending tube assembly (1), backrest frame one (4) and backrest frame two (5).

Citation Information

Patent Citations

  • MPV rear-row seat structure and MPV

    CN116118581A

  • A car rear armrest flipping mechanism

    CN218805389U