Crash box and its manufacturing method
US10894523B2 · kind B2 · utility
0Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2018 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Oct 2, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2226/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A crash box capable of easily deforming into a bellows shape and absorbing impact energy more reliably, and its manufacturing method are provided. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.