Automobile seat backrest structure with vibration reduction function

Abstract

The utility model discloses an automobile seat backrest structure with a vibration reduction function, which comprises a backrest framework, a damper and a metal plate connecting piece, the metal plate connecting piece is vertically arranged and welded at the top end of the backrest framework, the damper is fixed on the metal plate connecting piece, and the damper can absorb X-direction vibration, Y-direction vibration and Z-direction vibration on a seat backrest; the damper is located on the front side of the metal plate connecting piece, an L-shaped supporting foot is arranged at the upper end of the damper, a horizontal bottom plate support is arranged at the lower end of the damper, the supporting foot is fixedly connected with the metal plate connecting piece through a bolt assembly, and the bottom plate support extends to the position below the bottom end of the metal plate connecting piece and is connected with the bottom end of the metal plate connecting piece in a welded mode. The damper is arranged at the top end of the backrest framework and can absorb X-direction vibration, Y-direction vibration and Z-direction vibration on the seat backrest so as to reduce shaking and amplitude of the backrest, and therefore comfort of the automobile seat is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to an automobile seat backrest structure with a vibration reduction function. Background Art

[0002] At present, with the development of the economy, customers are paying more and more attention to the comfort experience of cars. Some seats have perceptible vibrations due to changes in the vehicle layout or engine. The XYZ vibrations of the backrest are particularly obvious under certain special stimuli. In order to improve customer experience, it is particularly important to reduce the vibration of the seat back. The existing seat back vibration reduction method is mainly through changing the backrest frame structure or connecting some core components. The workload is large, which has a real impact on the performance of the seat. The experimental cycle is long, especially the change of the backrest frame form, which poses a great challenge to the performance of the entire seat. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model proposes a car seat backrest structure with a vibration reduction function, which has a small modification amount and can effectively reduce the amplitude of the backrest.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a car seat back structure with a vibration reduction function, including a backrest frame, a damper and a sheet metal connector. The sheet metal connector is vertically arranged and welded to the top of the backrest frame. The damper is fixed on the sheet metal connector, and the damper can absorb XYZ vibrations on the seat back.

[0005] In the above scheme: the damper is located at the front side of the sheet metal connector, an L-shaped support leg is provided at its upper end, and a horizontal bottom bracket is provided at its lower end, the support leg is fixedly connected to the sheet metal connector by a bolt assembly, and the bottom bracket extends below the bottom end of the sheet metal connector and is welded to the bottom end of the sheet metal connector. The damper is installed on the backrest frame with the help of the sheet metal connector, and its structure is simple and easy to assemble.

[0006] In the above scheme: two headrest guide sleeve brackets are welded on the backrest frame, the damper is fixed below the top of the backrest frame and is located between the two headrest guide sleeve brackets, and the damper is installed using the remaining space between the two headrest guide sleeve brackets, which is convenient for layout and helps to save installation space.

[0007] In the above scheme: the headrest guide sleeve bracket is welded to the front end of the backrest frame, the top end of the sheet metal connector is first bent backward and then upward to form a bent section, and the sheet metal connector is welded to the rear end of the backrest frame through the bent section to avoid interference with the installation of the sheet metal connector by the headrest guide sleeve bracket, and the installation position of the damper is set as forward as possible to hide the damper as a whole in the backrest foam.

[0008] In the above scheme: the backrest frame includes a backrest suspension, two backrest side panels and a backrest top tube connecting the two backrest side panels, the sheet metal connector is welded to the backrest top tube, the middle and bottom parts of both sides of the backrest suspension are provided with wire hooks, the backrest suspension is hooked between the two backrest side panels through the wire hooks, the backrest frame also includes two tension springs, the two tension springs are arranged one by one at the top parts of both sides of the backrest suspension, the backrest side panels are provided with mounting holes at the positions of the tension springs on the same side, a locking bolt is inserted in the mounting hole, and an anti-slip seat is provided on the outer side of the locking bolt to prevent it from slipping out of the backrest side panels inwardly, and the other ends of the two tension springs are fixed to the corresponding side locking bolts. By replacing the two side tops of the backrest suspension hooked between the two backrest side panels with steel wire hooks with hooks between the two backrest side panels with tension springs, the rigidity of the upper part of the backrest suspension is reduced, so that the deformation of the upper part of the backrest suspension after the occupant sits on it is increased, that is, the embedding amount of the upper end of the occupant's back is increased, making the suspension structure more ergonomic and effectively improving the riding comfort of the passengers.

[0009] The beneficial effect of the utility model is that by arranging a damper at the top of the backrest frame, the damper can absorb the XYZ vibration of the seat backrest to reduce the vibration, abnormal sound and amplitude of the backrest, thereby effectively increasing the comfort of the car seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] Figure 2 It is the assembly diagram of the damper.

[0012] Figure 3 yes Figure 2 Rear view of.

[0013] Figure 4 It is a disassembled schematic diagram of the tension spring, the backrest side panel and the locking bolt.

[0014] Figure 5 It is a structural schematic diagram of a locking bolt. DETAILED DESCRIPTION

[0015] like Figure 1 As shown in FIG. 5 , a car seat backrest structure with a vibration reduction function is mainly composed of a backrest frame 1, a damper 2 and a sheet metal connector 3.

[0016] The sheet metal connector 3 is vertically arranged and welded to the top of the backrest frame 1. The damper 2 is fixed to the sheet metal connector 3. The damper 2 can absorb the XYZ vibration on the seat back. The X direction refers to the front and back direction of the car, the Y direction refers to the left and right direction of the car, and the Z direction refers to the up and down direction of the car.

[0017] Preferably, the damper 2 is located at the front side of the sheet metal connector 3, with an L-shaped support leg 21 at its upper end and a horizontal bottom bracket 22 at its lower end. The support leg 21 is fixedly connected to the sheet metal connector 3 by a bolt assembly, and the bottom bracket 22 extends below the bottom end of the sheet metal connector 3 and is welded to the bottom end of the sheet metal connector 3. The damper 2 is installed on the backrest frame 1 by means of the sheet metal connector 3, and its structure is simple and easy to assemble.

[0018] Preferably, two headrest guide sleeve brackets 4 are welded on the backrest frame 1, the damper 2 is fixed below the top of the backrest frame 1 and is located between the two headrest guide sleeve brackets 4, and the damper 2 is installed using the remaining space between the two headrest guide sleeve brackets 4, which is convenient for layout and helps save installation space.

[0019] Preferably, the headrest guide sleeve bracket 4 is welded to the front end of the backrest frame 1, the top end of the sheet metal connector 3 is first bent backward and then upward to form a bending section 31, and the sheet metal connector 3 is welded to the rear end of the backrest frame 1 through the bending section 31 to avoid interference of the headrest guide sleeve bracket 4 in the installation of the sheet metal connector 3, and the installation position of the damper 2 is set as forward as possible to hide the damper 2 as a whole in the backrest foam.

[0020] Preferably, the backrest frame 1 includes a backrest suspension 11, two backrest side panels 12 and a backrest top tube 13 connecting the two backrest side panels 12, the sheet metal connector 3 is welded to the backrest top tube 13, the middle and bottom parts of both sides of the backrest suspension 11 are provided with wire hooks 5, the backrest suspension 11 is hooked between the two backrest side panels 12 through the wire hooks 5, the backrest frame 1 also includes two tension springs 6, the two tension springs 6 are arranged one by one at the top parts of both sides of the backrest suspension 11, the backrest side panels 12 are provided with mounting holes 121 at the positions of the tension springs 6 on the same side, a locking bolt 7 is inserted in the mounting hole 121, and an anti-slip seat 71 is provided on the outer side of the locking bolt 7 to prevent it from slipping out of the backrest side panels 12 inwardly, and the other ends of the two tension springs 6 are fixed to the corresponding side locking bolt 7. By replacing the two side tops of the backrest suspension 11 being hooked between the two backrest side panels 12 through steel wire hooks 5 with being hooked between the two backrest side panels 12 through tension springs 6, the rigidity of the upper part of the backrest suspension 11 is reduced, so that the deformation of the upper part of the backrest suspension 11 after the occupant sits is increased, that is, the embedding amount of the upper end of the occupant's back is increased, making the suspension structure more ergonomic and effectively improving the riding comfort of the passengers.

[0021] Preferably, the mounting hole 121 is a strip hole, the locking bolt 7 is a U-shaped member, the locking bolt 7 can just pass through the strip hole, the anti-slip seat 71 is arranged on the two legs of the locking bolt 7, and the tension spring 6 is hooked and fixed on the head of the locking bolt 7. The anti-slip seat 71 is located on the outer side of the backrest side plate 12, the locking bolt 7 includes two legs and a head connecting the two legs, and the head of the locking bolt 7 is located on the inner side of the backrest side plate 12, which has a simple structure and is easy to process.

[0022] Preferably, the two legs of the locking member 7 have a restoring elastic force when they are pressed and closed, and the locking member 7 is clamped in the strip hole by the restoring elastic force, which is conducive to ensuring the assembly stability of the locking member 7 and the backrest side plate 12 and avoiding abnormal noise caused by friction.

[0023] Preferably, two legs of the locking bolt 7 are provided with slots 72 at positions corresponding to the backrest side panels 12 , and the locking bolt 7 is connected to the backrest side panels 12 through the slots 72 to achieve lateral limitation, further preventing the locking bolt 7 from escaping laterally.

Claims

1. A vehicle seat backrest structure with a vibration reduction function, comprising a backrest frame (1), characterized in that: It also includes a damper (2) and a sheet metal connector (3), wherein the sheet metal connector (3) is vertically arranged and welded to the top of the backrest frame (1), and the damper (2) is fixed to the sheet metal connector (3). The damper (2) can absorb XYZ vibrations on the seat back.

2. The automobile seat back structure with vibration reduction function according to claim 1, characterized in that: The damper (2) is located on the front side of the sheet metal connector (3), and an L-shaped support leg (21) is provided at its upper end, and a horizontal base plate bracket (22) is provided at its lower end. The support leg (21) is fixedly connected to the sheet metal connector (3) via a bolt assembly, and the base plate bracket (22) extends to below the bottom end of the sheet metal connector (3) and is welded to the bottom end of the sheet metal connector (3).

3. The automobile seat back structure with vibration reduction function according to claim 1, characterized in that: Two headrest guide sleeve brackets (4) are welded to the backrest frame (1), and the damper (2) is fixed below the top end of the backrest frame (1) and is located between the two headrest guide sleeve brackets (4).

4. The automobile seat back structure with vibration reduction function according to claim 3, characterized in that: The headrest guide sleeve bracket (4) is welded to the front end of the backrest frame (1), the top end of the sheet metal connecting member (3) is first bent backwards and then upwards to form a bent section (31), and the sheet metal connecting member (3) is welded to the rear end of the backrest frame (1) through the bent section (31).

5. The automobile seat back structure with vibration reduction function according to claim 1, characterized in that: The backrest frame (1) comprises a backrest suspension (11), two backrest side panels (12) and a backrest top tube (13) connecting the two backrest side panels (12); the sheet metal connector (3) is welded to the backrest top tube (13); the middle of both sides and the bottom of both sides of the backrest suspension (11) are provided with steel wire hooks (5); the backrest suspension (11) is hooked between the two backrest side panels (12) through the steel wire hooks (5); the backrest frame (1) also comprises two pull rods Spring (6), the two tension springs (6) are arranged one by one at the top of both sides of the backrest suspension (11), the backrest side plate (12) is provided with a mounting hole (121) at the position corresponding to the tension spring (6) on the same side, a locking bolt (7) is inserted into the mounting hole (121), and an anti-slip seat (71) is provided on the outer side of the locking bolt (7) to prevent it from slipping out of the backrest side plate (12) inwardly, and the other ends of the two tension springs (6) are fixed to the corresponding side locking bolt (7).

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