Automobile door reinforcing member
US6591577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Jul 3, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C2003/0473
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An automobile reinforcing member wherein a pair of pipes are formed relatively from an original sheet material with a joint surface in a middle portion of the original sheet in a width direction, the fold-back faces consist of the outer side faces of the pipes extending laterally from said joint surface, the outer wall faces extending from said outer side faces of the pipes, the inner side faces of the pipes extending from said outer wall faces, the inner wall faces extending from said fold-back faces to the joint surface, and the welding portions extending from said inner wall faces. These portions are formed into lateral pipes by bending the fold-back faces, folding boundary mark between the inner wall face and the welding portion into valley-shaped, and putting those welding portions onto the joint surface situated at interval between said pipes, and then welding both of welding portions and the joint surface together to form an integrated structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.