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Crash box and its manufacturing method

A manufacturing method and collision box technology, which is applied in the manufacture of tools, spring/shock absorber manufacturing, and other household appliances, etc., can solve the problem that the collision box cannot reliably absorb impact energy, etc.

Inactive Publication Date: 2019-05-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the crash box disclosed in Japanese Unexamined Patent Application Publication No. H7-145843 is unlikely to be deformed into a bellows shape by using a flexible portion as a starting point of deformation, and thus the crash box may not be able to Reliably absorbs impact energy

Method used

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  • Crash box and its manufacturing method
  • Crash box and its manufacturing method
  • Crash box and its manufacturing method

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Embodiment Construction

[0029] Embodiments of the present disclosure are described below with reference to the accompanying drawings. It should be noted that in each of the drawings described below, the same or corresponding elements are denoted by the same reference numerals, and redundant descriptions are omitted where necessary for clarity of description. In addition, specific numerical values ​​and the like shown in the embodiments below are merely examples for facilitating understanding of the present disclosure, and the present disclosure is not limited thereto.

[0030] (The structure of the collision box)

[0031] First, refer to figure 1 The structure of the crash box 1 according to this embodiment is described. figure 1 is a perspective view showing the structure of the crash box 1 according to this embodiment.

[0032] Such as figure 1 As shown in , the crash box 1 according to this embodiment has a cylindrical body in which main body layers (first layer) 10 and porous layers (second l...

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Abstract

The invention relates to a crash box and its manufacturing method. The crash box is capable of easily deforming into a bellows shape and absorbing impact energy more reliably. The present disclosure is applied to a crash box which is partly deformed in an axial direction to absorb impact energy when the crash box receives an impact in the axial direction. A first layer made of metal and a second layer made of metal containing a larger volume of bubbles than that of the first layer are alternately formed in the axial direction in the crash box according to the present disclosure.

Description

technical field [0001] The present disclosure relates to crash boxes and methods of manufacturing the same. Background technique [0002] The vehicle is provided with a crash box which, when receiving an impact in the axial direction, is partially deformed in the axial direction to absorb the impact energy. [0003] As an example of a crash box, Japanese Unexamined Patent Application Publication No. H7-145843 discloses a technique in which a crash box is formed by applying heat to a part of the crash box and thereby softening the part of the crash box A flexible section used as a starting point for deformation of the bellows shape. [0004] However, as described above, in the crash box disclosed in Japanese Unexamined Patent Application Publication No. H7-145843, heat is applied to a part of the crash box to form a flexible portion in the part. Therefore, heat is also conducted to portions around the flexible portion by means of heat conduction, and thus a boundary between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/34B22F3/105B33Y10/00
CPCB23K26/0006B23K26/0869B23K26/082B23K2101/006B23K2101/04B23K2103/18B23K26/342B60R19/34F16F7/12B33Y10/00B33Y80/00F16F7/003F16F2224/0208F16F2224/0233F16F2226/04
Inventor 生田浩之高根沢祐高木陆人芳田光崇
Owner TOYOTA JIDOSHA KK
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