Reinforcement for vehicle hollow structural member, having decreasing-thickness end portions
US6082811A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Apr 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21H7/187
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A vehicle hollow structural member including a hollow body portion, and a reinforcement having a hollow structure fixedly disposed within the body portion in close contact with the inner surface of the hollow body portion. The reinforcement includes a thick-walled portion as a longitudinal central portion thereof, and two decreasing-thickness portions longitudinally opposite end portions. Each decreasing-thickness portion has a wall thickness which continuously decreases in a longitudinal direction from the thick-walled portion toward the longitudinal end of the corresponding end portion of the reinforcement, such that the wall thickness at the longitudinal end is substantially zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.