Crash box
US7665586B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 27, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jan 27, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A crash energy absorption member is provided which has excellent crash energy absorbing properties with the ability of repeated buckling in a stable manner, a high average load at the time of collapse, and the maximum load which is within a range which does not break other members.It is a crash energy absorption member which preferably has a transverse cross-sectional shape of an octagon and which is intended for absorbing impact energy by buckling in the lengthwise direction into a shape of bellows when it receives an impact load. With respect to at least one side forming the transverse cross-sectional shape, when the angle formed by the two sides which adjoin the opposing ends of the one side is α, the relationship between the length L1 of the one side and the distance L2 between the two furthest ends of the two sides interposing the one side satisfies the following equation:0<L1/L2<1/{2×sin(α/2)+1}.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.