Automobile strength member
US7648191B2 · kind B2 · utility
3Cited by
18References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Mar 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49622
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An automobile strength member, having a cross-sectional shape giving a high bending repulsion at the beginning of impact and able to reduce the production cost and lighten the weight and achieve a greater improvement in safety and a reduction of cost of an automobile, that is, an automobile strength member comprised of a rectangular steel tube with a square cross-section, simultaneously satisfying the following relations (1) to (3), and having a strength of at least 690 MPa in terms of tensile strength:R1≦1.5t (1)tR≧1.1t (2)R1≧R2 (3)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.