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Crashbox

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

Active Publication Date: 2013-05-08
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

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Embodiment Construction

[0043] exist figure 1 The vehicle body 42 partially shown in the perspective view of , has two longitudinal beams 30 extending substantially in the vehicle longitudinal direction (x), to which end sections of the longitudinal beams facing the viewer are each detachably attached 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] from according to figure 2 The enlarged view of the longitudinal beam 30 also shows that the crash box 10 is pl...

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PUM

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Abstract

A crash box for arrangement between a bumper and a longitudinal beam of a motor vehicle body is provided. The crash box is able to be arranged with a fastening profile at least partially overlapping to a mount profile of the longitudinal beam. The crash box has a support element, which penetrates the fastening profile transversely to its profile longitudinal direction (x) and is able to be brought into abutment in a supporting manner with an end section of the mount profile.

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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IPC IPC(8): B60R19/34B60R19/04
CPCB60R19/04B62D21/15B62D21/152B60R19/34
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
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