Bumper beam with interference-fit energy absorber
US6746061B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2003 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | May 13, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2019/1866
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicular bumper system includes a tubular beam and an energy absorber press-fit within the tubular beam. In particularly, the energy absorber includes front and rear wall sections, planar stiffening wall sections that extend horizontally continuously and completely between the front and rear wall sections, and stabilizing wall sections that extend between the planar stiffening wall sections. Pairs of stubby protrusions are formed on the rear wall sections that are aligned with the planar stiffening wall sections and that combine with the front and rear wall sections to define an arrangement where, when the energy absorber is forcibly pressed into the cavity of the tubular beam, the protrusions are deformed and stressed and/or are shaved off such that they friction-fit into the tubular beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.