Reinforced and lightweight motor-vehicle bonnett
US6398286B1 · kind B1 · utility
7Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D29/005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Motor-vehicle bonnet having a torsional strength greater than or equal to 5 N/mm and a flexural strength greater than 55 N/mm, comprising:an external shell (1; 1′; 1″) made of laminated composite sheet comprising two external facings made of steel sheet and a core of uniform thickness made of polymer material;internal reinforcing means (2; 3, 3′; 8) fastened to the said shell, the weight of which is less than 40% of the total weight of the bonnet.Bonnet which is at once lightweight, strong and inexpensive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.