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collision box

A collision box and profile technology, applied in the field of collision boxes, can solve problems such as large point loads and complex structures

Active Publication Date: 2017-06-23
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Such a crash box has a relatively complex structure and requires the fixation section and the deformation section to be fixed or joined to each other individually
[0007] In addition, in the case of plug-in fastening solutions for bolted connections, high point loads occur in the area of ​​the screws and threaded holes

Method used

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Examples

Experimental program
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Embodiment Construction

[0043] The vehicle body 42 partially shown in the perspective view of FIG. 1 has two side members 30 extending essentially in the vehicle longitudinal direction (x), on which end sections of the side members facing the viewer are each detachably fastened a crash box. 10. At the other end of crash box 10 is arranged a bumper 40 which, in particular in the event of a frontal or rear-end collision of a motor vehicle not shown in detail here, absorbs the corresponding crash energy and conducts it into crash box 10 .

[0044] The side members 30 of the body 42 adjoining the crash box 10 can thus be largely protected against deformation and consequent damage when the crash energy or the mechanical load does not reach a predetermined limit value. Kinetic and / or crash energy can be largely absorbed by targeted deformation of crash box 10 .

[0045] It can also be seen from the enlarged view according to FIG. 2 that the crash box 10 is connected in an inserted manner to the end of the...

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PUM

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Abstract

The invention relates to a crash box for being arranged between a bumper (40) and a side member (30) of a motor vehicle body (42), wherein the crash box can be at least partially connected to the The receiving profiles (31) of the longitudinal beams (30) are arranged one above the other, and the crash box has a support element (12) which penetrates the fixing profile (11) transversely to the profile longitudinal (x) of the fixing profile (11). The profile can also bear supportively against the end section ( 33 ) of the receiving profile ( 31 ).

Description

technical field [0001] The invention relates to a crash box for being arranged between a bumper and a side member of a motor vehicle body. Background technique [0002] Crash box is used as an element for absorbing crash energy and is arranged between the bumper, especially the bumper beam, and the side members of the vehicle body, so that in the event of a frontal or rear collision at low speeds, the supporting structure of the body can be largely avoided damaged. Known crash boxes are generally designed as approximately rectangular cuboid, thin-walled elements made of steel, aluminum or plastic. They can be produced by joining extruded sheet metal shells or can be designed in one piece, for example as extruded or extruded aluminum profiles. [0003] The mechanical impulses or the corresponding kinetic energy acting on the bumper or bumper beam under load, when a preset limit value is exceeded, lead to a targeted deformation of the crash box designed as an energy absorbin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/34B60R19/04
CPCB62D21/152B60R19/34
Inventor J.马图斯切克U.埃克特R.希尔默B.布朗贝克
Owner GM GLOBAL TECH OPERATIONS LLC