car bumper

A technology for bumpers and automobiles, applied in bumpers, vehicle parts, traction connectors, etc., can solve the problems of fragile collision, poor forming performance, and high cost of bumper materials, and achieve the effect of reducing damage and reducing maintenance costs.

Active Publication Date: 2019-05-24
WINBO DONGJIAN AUTOMOTIVE TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The cost of materials used in the protective bar is relatively high, and the molding performance for hollow blow molding is poor, and the comprehensive processing cost is high;
[0004] 2. The material is more brittle after hollow forming, fragile in collision, and has poor impact resistance and cushioning performance

Method used

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Embodiment Construction

[0032] In order to solve the above problems, the present invention provides an automobile bumper.

[0033] To achieve the above object, the present invention adopts the following technical solutions:

[0034] A car bumper, comprising:

[0035] Main bar body 1, shell 2, guard plate 3, decoration 4, tow hook 5, connecting piece 6 and carbon steel pull code 7;

[0036] The surface of the main bar body 1 is designed with several grooves and round holes. The grooves can increase the physical bonding force between the shell 2 and the main bar body 1. During foam molding, the polyurethane forms an I-shaped connection through the round holes of the main body 1, so that The shell 2 is closely connected with the main bar body 1 .

[0037] It should be noted that the shell 2 is polyurethane foamed with a density of 0.45-0.5g / cm3, which is integrally covered on the outer surface of the main bar body 1 through a foaming process, with a thickness of 5-7mm, and the appearance surface is et...

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PUM

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Abstract

The invention discloses an automobile bumper. The automobile bumper mainly comprises a main bumper body (1), a shell (2), a tow hook (5) and a carbon steel puller (7); a plurality of grooves and circular holes are designed in a surface of the main bumper body (1); an H-shaped connection of the shell (2) is formed through the grooves and the circular holes of the main bumper body (1); one end of the tow hook (5) is mounted on the main bumper body (1), while the other end of the two hook (5) is fixed and locked to a mounting portion of a vehicle; one end of the carbon steel puller (7) is mounted on the main bumper body (1), while the other end of the carbon steel puller (7) is fixedly connected with the body of the vehicle; wherein, the main bumper body (1) employs a framework formed from a polypropylene material in a high-density foaming way, and functions in both bearing the overall weight of the bumper and absorbing energy of collision.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile protective bar. Background technique [0002] At present, the main body of the car bumper assembled by many vehicles on the market is mostly made of acrylonitrile-butadiene-styrene copolymer (density 1.05g / cm3) hollow blow molding, and its disadvantages are as follows: [0003] 1. The cost of materials used in the protective bar is relatively high, and the molding performance for hollow blow molding is poor, and the comprehensive processing cost is high; [0004] 2. The material is more brittle after hollow forming, fragile on impact, and has poor impact resistance and cushioning performance. Contents of the invention [0005] In order to solve the above problems, the present invention provides an automobile bumper. [0006] To achieve the above object, the present invention adopts the following technical solutions: [0007] A car bumper, comprising: [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/03B60R19/04B60D1/04
CPCB60D1/04B60R19/03B60R19/04
Inventor 邓世科唐杰
Owner WINBO DONGJIAN AUTOMOTIVE TECHNOLOGY CO LTD
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