Front rail for vehicle underbody assembly with varied strength zones
US10272948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Jul 5, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/001
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle underbody assembly may include a pair of front rails, a pair of hinge pillars, a pair of crush cans, a pair of bumper supports, and a bumper. Each of the front rails includes a front portion, a mid-portion, and a backup portion. Each of the hinge pillars may be attached to one of the backup portions. Each of the crush cans may be attached to one of the front portions. Each of bumper supports may be secured to one of the crush cans. The bumper may be attached to the bumper supports. The front portions and the backup portions may be heat treated to have a higher strength than the mid-portions. Each of the front portions and the backup portions may be heated to define a hard strength zone and the mid-portion may be heated to define a medium strength zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.