Structure body and method of manufacture thereof
US6378264B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | May 17, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/477
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hollow frame member is constituted by two face plates 11, 12 (21, 22) joined in a truss shape by ribs 13, 13A, 13B (23, 23A, 23B). End portions of one of the face plates 11 and 21 are positioned in the vicinity of an apex of the truss structure of the hollow frame member. End portions of the other of the face plates 12b and 22b have a projection extending toward the end portions of the face plates 11 and 21. The face plates 12b and 22b are joined by friction stir welding from an upper portion. Next, a connection member 30 is arranged between the ends of the face plates 11 and 21, and from an upper portion the friction stir welding is again carried out. Due to the presence of the ribs 13A, 13B (23A, 23B), the load during the friction stir welding time is easily supported. Since the truss structure is formed totally, a light weight structure with a high rigidity performance can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.