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Plastic vehicle seat backrest

A backrest, plastic technology, used in bicycle saddles, bicycle accessories, transportation and packaging, etc., can solve the problems of imperfect structure and insufficient cushioning softness, and achieve the effect of light weight, reasonable structure and low manufacturing cost.

Inactive Publication Date: 2014-07-23
禹尔力
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this structure has the advantages of not being afraid of rain and light weight, but due to the imperfect structure, the softness of cushioning in use is not enough

Method used

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  • Plastic vehicle seat backrest

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Embodiment Construction

[0008] The embodiments are described in detail in conjunction with the above drawings. The present invention is an improvement to the prior art. It includes a vertical plastic backrest box 1. The improvement is that the inner rear wall 2 of a vertical plastic backrest box is connected to the front. There are at least four spring seats 3 evenly distributed between the walls 5 with a distance of 4-6 cm, and a return spring 4 whose front end is pressed against the front wall is fixed on each spring seat respectively. On the basis of the original thickness, the thickness is increased by at least two millimeters, and reinforcing ribs 6 are evenly distributed on the inner side of the rear wall of the backrest box. After the above improvement, not only the waterproof performance of the backrest is maintained, but also the installation is more convenient.

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Abstract

The invention discloses a plastic vehicle seat backrest which comprises a vertical plastic backrest box. A 4 cm-6 cm gap is reserved between the back wall and the front wall in the vertical plastic backrest box to be evenly provided with at least four spring seats, a reset spring is fixed to each spring seat, the front ends of the reset springs abut against the front wall, the thicknesses of the left lateral wall and the right lateral wall of the vertical plastic backrest box are respectively increased by at least two millimeters on the basis of the original thicknesses, and reinforcing ribs are evenly arranged on the inner side of the rear wall of the vertical plastic backrest box. The plastic vehicle seat backrest is reasonable in structure, good in waterproof performance, light in weight, soft in buffering and low in manufacturing cost.

Description

[0001] Technical field: [0002] The present invention is a plastic seat backrest suitable for installation and use on motorcycle tricycles and electric tricycles. Background technique: [0003] The "An electric tricycle backrest" that I applied for earlier, the patent number is 201320689471.9, is a plastic backrest box with at least four evenly distributed buffer support tubes fixed forward on the rear wall, and the top of each support tube is connected to the front of the back wall. A certain buffer space is reserved between the front walls, and at the same time, a thickening block protruding inward and outward is respectively arranged on both sides of the rear wall, and reinforcing ribs are evenly distributed on the front and rear walls in the back box. Although this structure has the advantages of not being afraid of rain and light weight, due to the imperfect structure, the softness of buffering is not enough in use. Invention content: [0004] The purpose of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62J1/28
Inventor 禹尔力
Owner 禹尔力