Automobile back row backrest armrest frame fixing mechanism

By embedding the steel wire skeleton inside the foamed interior of the rear back armrest of the car and fixing it with the seat back skeleton, the problem of uncontrollable and poor matching of the foam shape in traditional design is solved, and the precise matching of the foam and the seat skeleton is achieved, and the structural stability and reliability of the foam are achieved.

CN223030835UActive Publication Date: 2025-06-27CHENGDU FUSHENG COCKPIT AUTO PARTS CO LTD
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Patent Information

Application Number
CN202422084130.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-27
Publication Date
2025-06-27
Estimated Expiration
2034-08-27

AI Technical Summary

Technical Problem

The foaming design of the rear backrest armrest frame of the traditional automobile has uncontrollable freedom, resulting in problems such as surface difference and mismatch of the seat back skeletons on both sides.

Method used

The steel wire skeleton is embedded inside the foam and is fixed to the seat back skeleton on both sides. Through the design of four avoidance grooves and bolt connection ears, self-tapping screws are used to achieve the fixed positioning of the foam and the seat skeleton.

Benefits of technology

Through the design of the embedded wire skeleton, the precise matching of foam and the seat back skeleton is ensured, which solves the problems of uncontrollable shape and poor matching in traditional designs, and improves the stability and reliability of the structure.

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Abstract

The utility model relates to an automobile back row backrest armrest frame fixing mechanism which comprises a backrest armrest frame installed in the middle of two seats in the back row and a foam assembly wrapping the backrest armrest frame, and the foam assembly is composed of foam and metal steel wires pre-buried in the foam. Four avoiding grooves for exposing the metal steel wires are formed in the outer walls of the two sides of the foam, bolt fixing holes are formed in the ends, in the avoiding grooves, of the metal steel wires, bolt connecting lugs are welded to the positions, on the two sides of the backrest armrest frame, of the seat backrest framework, and the bolt fixing holes in the four avoiding grooves are fixedly connected with the bolt connecting lugs through self-tapping screws; the foam and the seat backrest framework are fixedly connected and positioned; the utility model has the advantages that the foam embedded with the metal steel wire is coated on the backrest armrest frame, so that the shape is controllable, and meanwhile, the metal steel wire in the foam is fixedly connected with the seat backrest frameworks on the two sides, so that the foam on the backrest armrest frame is accurately matched with the seat backrest frameworks on the two sides.
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Description

Technical Field

[0001] The utility model relates to the technical field of rear-row seats of automobiles, in particular to a fixing mechanism for a backrest armrest frame of a rear-row seat of an automobile. Background Art

[0002] At present, most of the rear seats of cars are equipped with backrest armrests in the middle. As an important part of the backrest armrest, the backrest armrest frame is used as a support for the backrest armrest and connected to the two rear seat frames. In the traditional design, the foaming of the rear backrest armrest frame is only designed according to the shape of the rear backrest armrest frame frame without any other fixation. The foaming after coating has uncontrollable freedom in the X / Y / Z directions, resulting in surface difference and misalignment when matching with the seat back frames on both sides. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a fixing mechanism for the armrest frame of the rear seat backrest of an automobile, which overcomes the shortcomings of the above-mentioned prior art by pre-embedding a steel wire frame inside the foam for support and fixing the steel wire frame to the seat back frames on both sides.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A fixing mechanism for a rear seat backrest frame of an automobile comprises: a backrest frame installed in the middle position between two rear seats, and a foam assembly covering the backrest frame. The improvement made is that the foam assembly consists of foam and metal steel wires embedded in the foam, four avoidance grooves for leaking out the metal steel wires are provided on the outer walls on both sides of the foam, bolt fixing holes are provided on the ends of the metal steel wires in the avoidance grooves, bolt connecting ears are welded on the seat back frames on both sides of the backrest frame, and the bolt fixing holes in the four avoidance grooves are fixedly connected to the bolt connecting ears by self-tapping screws, so that the foam is fixedly connected and positioned with the seat back frame.

[0006] As a preferred embodiment of the present invention, two groups of four avoidance grooves are symmetrically arranged on the outer walls on both sides of the foam.

[0007] As a preferred embodiment of the present invention, two of the bolt connection ears are welded to one side of the two seat back frames close to the backrest armrest frame.

[0008] As a preferred embodiment of the utility model, the metal wire end is flattened and a φ7mm bolt fixing hole is provided.

[0009] As a preferred embodiment of the present invention, a connection hole with a diameter of φ7mm is provided on the bolt connection ear corresponding to the diameter of the bolt fixing hole.

[0010] The advantages and positive effects of the utility model are:

[0011] 1. In the utility model, metal steel wires are pre-embedded in the foam. After the foam with the pre-embedded metal steel wires is wrapped around the backrest armrest frame, while the shape can be controlled, the metal steel wires in the foam are fixedly connected to the seat back frames on both sides, thereby ensuring the precise matching of the foam on the backrest armrest frame and the seat back frames on both sides.

[0012] 2. The utility model has the advantages of simple and reliable structure and strong stability. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the backrest armrest frame in the utility model.

[0014] Figure 2 is the installation sectional view of the backrest armrest frame and the foam assembly in the utility model.

[0015] Figure 3 is Figure 2 the partial enlarged view of A of

[0016] Reference numerals: backrest armrest frame 1, foam 2, metal steel wire 3, avoidance groove 4, bolt connection ear 5, self-tapping screw 6. Detailed Embodiment

[0017] Referring to Figures 1-3 , this embodiment provides a fixing mechanism for the backrest armrest frame of the rear row of an automobile, including: a backrest armrest frame 1 installed at the middle position between two rear seats, a foam assembly wrapped around the backrest armrest frame 1, the foam assembly is composed of a foam 2 and metal steel wires 3 pre-embedded in the foam, four avoidance grooves 4 for exposing the metal steel wires 3 are opened on the outer walls of both sides of the foam 2, bolt fixing holes are opened at the ends of the metal steel wires 3 in the avoidance grooves 4, bolt connection ears 5 are welded on the seat back frames on both sides of the backrest armrest frame 1, and the bolt fixing holes in the four avoidance grooves 4 and the bolt connection ears 5 are fixedly connected by self-tapping screws 6, so as to fixedly connect and position the foam 2 and the seat back frame. The end of the metal steel wire 3 is flattened and a bolt fixing hole with a diameter of φ7mm is opened. A connection hole with a diameter of φ7mm is opened on the bolt connection ear 5 corresponding to the diameter of the bolt fixing hole.

[0018] Working principle: By pre-embedding metal steel wires 3 in the foam 2, after the foam 2 with the pre-embedded metal steel wires is wrapped around the backrest armrest frame 1, while the shape can be controlled, the metal steel wires 3 in the foam 2 are fixedly connected to the seat back frames on both sides, thereby ensuring the precise matching of the foam 2 on the backrest armrest frame 1 and the seat back frames on both sides.

[0019] The above are only the specific implementation manners of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily conceive of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A fixing mechanism for a rear seat backrest armrest frame of a vehicle, comprising: A backrest armrest frame installed in the middle of the two rear seats, and a foam assembly wrapped on the backrest armrest frame, wherein the foam assembly is composed of foam and metal steel wires embedded in the foam, four avoidance grooves for leaking out of the metal steel wires are provided on the outer walls on both sides of the foam, and bolt fixing holes are provided on the ends of the metal steel wires in the avoidance grooves, and bolt connecting ears are welded on the seat back frames on both sides of the backrest armrest frame, and the bolt fixing holes in the four avoidance grooves are fixedly connected to the bolt connecting ears by self-tapping screws, so that the foam is fixedly connected and positioned to the seat back frame.

2. A vehicle rear seat backrest armrest frame fixing mechanism according to claim 1, characterized in that: Two groups of four avoidance grooves are symmetrically arranged on the outer walls on both sides of the foam.

3. The automobile rear seat backrest armrest frame fixing mechanism according to claim 1, characterized in that: Two bolt connection ears are welded on one side of the two seat back frames close to the backrest armrest frame.

4. The automobile rear seat backrest armrest frame fixing mechanism according to claim 1, characterized in that: The metal wire end is flattened to form a φ7mm bolt fixing hole.

5. The automobile rear seat backrest armrest frame fixing mechanism according to claim 4, characterized in that: The bolt connection ear is provided with a connection hole of φ7mm corresponding to the diameter of the bolt fixing hole.