The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2002
Filed:
Mar. 28, 2000
Hideyuki Nakamura, Kudamatsu, JP;
Takeshi Kawasaki, Kudamatsu, JP;
Toshiaki Makino, Kudamatsu, JP;
Toshiaki Sagawa, Yanai, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A hollow frame member is constituted by joining with a truss shape by ribs A, B ( A, B) between two face plates ( ). An end portion of one of the hollow frame member is connected according to the rib A for constituting the truss. A face plate of another hollow frame member is joined at a vicinity of an apex of the truss of the hollow frame member . A face plate of the hollow frame member is joined at a vicinity of an apex of the truss of the another hollow frame member . A load during a friction stir joining is received according to the ribs A, B ( A, B). Since the truss structure is formed totally, the light weight structure and the high rigidity performance can be obtained.