Single component automotive bumper and lower frame rail
US7287788B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Feb 17, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R19/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A single component bumper beam and lower frame midrail structure, is formed through a hydroforming process to create a uniform “B-shaped” cross-sectional configuration with internal crash triggers to enhance crash performance. The mounting legs of the integral bumper structure are formed with a reduced cross-section at the terminal ends thereof to facilitate insertion into lower frame midrails formed from a pair of horizontally disposed tubes. The terminal end portions of the mounting legs are formed with a longitudinally extending slot to receive a central co-joined wall member formed through the welding of the two vertically oriented tubular members in the lower frame midrails. The single component bumper and longitudinally extending mounting leg structure can be formed by welding together two vertically oriented tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.