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:
May. 21, 2013
Filed:
Oct. 13, 2010
Hisashi Hozumi, Tokyo, JP;
Yutaka Togasawa, Kanagawa, JP;
Kenji Matsuzaki, Tokyo, JP;
Mitsuaki Shimamura, Saitama, JP;
Satoshi Okada, Tokyo, JP;
Wataru Kono, Kanagawa, JP;
Masaki Yoda, Kanagawa, JP;
Hisashi Hozumi, Tokyo, JP;
Yutaka Togasawa, Kanagawa, JP;
Kenji Matsuzaki, Tokyo, JP;
Mitsuaki Shimamura, Saitama, JP;
Satoshi Okada, Tokyo, JP;
Wataru Kono, Kanagawa, JP;
Masaki Yoda, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a laser welding apparatus has a laser irradiation head that is arranged in an outer frame and is divided inside into a light source side and an irradiation side by a partitioning member. The apparatus also has a gas jet nozzle that is formed so as to irradiate a portion to be welded with the laser light and jet the inert gas to the portion to be welded; and a welding wire feed pipe that sequentially feeds a welding wire. The apparatus also has a welding wire contact mechanism that includes a measuring means for measuring a distance between the extremity of the irradiation side and the extremity of the welding wire, and is formed so that the extremity of the welding wire is brought into contact with and pressed against the portion to be welded by an elastic member.