Front seat framework

Abstract

The utility model relates to a front-row seat framework which comprises a seat sliding rail assembly, a cushion framework assembly connected to the seat sliding rail assembly in a sliding mode and a backrest framework assembly connected to the cushion framework assembly in a pivoted mode, the rear end of the cushion framework assembly is connected with the seat sliding rail assembly through a gear sector, and the height of the cushion framework assembly is adjusted. The sector comprises a sector plate and a toothed plate which are split, the sector plate is fixedly connected with the toothed plate, the sector plate is connected with the cushion height adjusting driving motor through the toothed plate, and the sector plate comprises a rear hinge shaft hole located in the rear end of the sector plate, a front hinge shaft hole located in the front end of the sector plate, an energy absorption hole and an energy absorption protrusion which are arranged between the rear hinge shaft hole and the front hinge shaft hole of the sector plate. The rear hinge shaft hole is formed in a supporting rod on the seat sliding rail assembly, and the front hinge shaft hole is formed in a connecting seat transverse pipe at the rear end of the cushion framework assembly in a sleeved mode. The utility model has the advantages that the toothed plate adopts a split type structure, the fan plate which is not subjected to heat treatment increases the energy absorption performance under a collision working condition, and the toothed plate which is subjected to heat treatment can increase the connection strength.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a front seat frame. Background Art

[0002] To improve seat comfort, current car seats all have adjustable seat cushion heights. However, due to the poor energy absorption of the gear fans during seat collision tests, they are prone to breakage, causing secondary injuries to passengers. In addition, the existing seat backs also have problems with poor versatility and the lack of reserved interfaces. Utility Model Content

[0003] In view of the above problems, the purpose of the present invention is to provide a front seat frame for improving the stability and versatility of the seat, so as to overcome the above-mentioned deficiencies of the prior art.

[0004] The utility model provides a front seat frame, including a seat slide rail assembly, a seat cushion frame assembly slidably connected to the seat slide rail assembly, and a backrest frame assembly pivotally connected to the seat cushion frame assembly. The rear end of the seat cushion frame assembly is connected to the seat slide rail assembly through a gear fan and the height is adjusted. The improvement is that the gear fan includes a split fan plate and a gear plate, the fan plate is fixedly connected to the gear plate, and the fan plate is connected to the output end of the seat cushion height adjustment drive motor through the gear plate. The fan plate includes: a rear hinge shaft hole located at the rear end of the fan plate, a front hinge shaft hole located at the front end of the fan plate, an energy absorption hole and an energy absorption protrusion arranged between the rear hinge shaft hole and the front hinge shaft hole of the fan plate, the rear hinge shaft hole is installed on the support rod on the seat slide rail assembly, and the front hinge shaft hole is sleeved on the seat connecting cross tube at the rear end of the seat cushion frame assembly.

[0005] As a preferred embodiment of the present invention, the fan plate is a metal plate that has not been heat-treated, and the tooth plate is a metal plate that has been heat-treated.

[0006] As a preferred embodiment of the present invention, the tooth plate is fixed to the fan plate by rivets or bolts.

[0007] As a preferred embodiment of the present invention, the backrest frame of the backrest frame assembly is provided with a DVD bracket mounting hole, a vibration absorber mounting hole, and a headrest lifter mounting hole.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. The tooth plate of the utility model adopts a split structure. The fan plate that has not been heat-treated increases the energy absorption of the collision working condition, while the tooth plate that has been heat-treated can increase the connection strength.

[0010] 2. The utility model reserves DVD bracket mounting holes, vibration absorber mounting holes, and headrest lifter mounting holes on the backrest frame of the backrest frame assembly to increase versatility, reduce investment in molds and fixtures, and reduce parts costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0012] Figure 1 Schematic diagram of the overall structure of this embodiment.

[0013] Figure 2 Schematic diagram of the overall structure of the backrest frame assembly of this embodiment.

[0014] Figure 3 This is a schematic diagram of the installation structure of the seat cushion frame assembly and the seat slide rail assembly of this embodiment.

[0015] Figure 4 Schematic diagram of the overall structure of the fan plate of this embodiment.

[0016] The reference numerals therein include: seat slide rail assembly 1, seat cushion frame assembly 2, backrest frame assembly 3, gear fan 4, fan plate 401, gear plate 402, rear hinge shaft hole 403, front hinge shaft hole 404, energy absorption hole 405, energy absorption protrusion 406, and seat connecting cross tube 5. DETAILED DESCRIPTION

[0017] See Figure 1-4 As shown, a front seat frame provided in this embodiment includes a seat slide assembly 1, a seat cushion frame assembly 2 slidably connected to the seat slide assembly 1, and a backrest frame assembly 3 pivotally connected to the seat cushion frame assembly 2. The rear end of the seat cushion frame assembly 2 is connected to the seat slide assembly 3 through a gear fan 4 and the height is adjusted. The gear fan 4 includes a split fan plate 401 and a tooth plate 402. The fan plate 401 and the tooth plate 402 are fixed together by three rivets. The fan plate 401 is connected to the seat cushion height by the tooth plate 402. The output gear teeth of the adjustment drive motor are connected, and the fan plate 401 includes: a rear hinge shaft hole 403 located at the rear end of the fan plate 401, a front hinge shaft hole 404 located at the front end of the fan plate 401, an energy absorption hole 405 and an energy absorption protrusion 406 arranged between the rear hinge shaft hole 403 and the front hinge shaft hole 404 of the fan plate 401, the rear hinge shaft hole 403 is installed on the support rod (not shown) on the seat slide rail assembly 1, and the front hinge shaft hole is mounted on the seat cross tube 5 connecting the rear end of the seat cushion frame assembly 2.

[0018] The fan plate 401 in this embodiment is a metal plate that has not been heat-treated. Since the fan plate 401 is not heat-treated, the energy absorption capacity of the collision working condition is increased. The tooth plate 402 is a metal plate that has been heat-treated, which can increase its strength.

[0019] In this embodiment, the fan plate 401 is provided with a link hole (not shown) connected to the screw motor behind the rear hinge shaft hole 403.

[0020] The backrest frame of the backrest frame assembly in this embodiment is provided with reserved DVD bracket mounting holes, vibration absorber mounting holes, headrest lifter mounting holes, etc. to increase the versatility of the seat back.

[0021] Working Principle: Utilizing separate fan plate 401 and tooth plate 402, the tooth fan 4 ensures both energy absorption in collision conditions and the strength of the tooth engagement. Furthermore, the backrest frame features reserved connections for the tabletop, leg rest, and footrest, increasing versatility and reducing investment in molds, fixtures, and component costs.

[0022] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A front seat frame, comprising a seat rail assembly, a seat cushion frame assembly slidably connected to the seat rail assembly, and a backrest frame assembly pivotally connected to the seat cushion frame assembly, wherein the rear end of the seat cushion frame assembly is connected to the seat rail assembly via a gear fan and is height-adjustable, characterized in that: The gear fan includes a split fan plate and a tooth plate, the fan plate is fixedly connected to the tooth plate, and the fan plate is connected to the output end of the seat cushion height adjustment drive motor through the tooth plate. The fan plate includes: a rear hinge shaft hole located at the rear end of the fan plate, a front hinge shaft hole located at the front end of the fan plate, an energy absorption hole and an energy absorption protrusion arranged between the rear hinge shaft hole and the front hinge shaft hole of the fan plate, the rear hinge shaft hole is installed on the support rod on the seat slide rail assembly, and the front hinge shaft hole is sleeved on the seat cross tube connecting the rear end of the seat cushion frame assembly.

2. A front seat frame according to claim 1, characterized in that: The fan plate is a metal plate that has not been heat-treated, and the tooth plate is a metal plate that has been heat-treated.

3. The front seat frame according to claim 1, characterized in that: The tooth plate is fixed to the fan plate by rivets or bolts.

4. The front seat frame according to claim 1, characterized in that: The backrest frame of the backrest frame assembly is provided with a DVD bracket mounting hole, a vibration absorber mounting hole, and a headrest lifter mounting hole.

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