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:
Oct. 14, 2003
Filed:
Dec. 18, 2001
Shigekazu Shikoda, Akashi, JP;
Tetsuya Kubota, Kobe, JP;
Hirotaka Uehara, Ashiya, JP;
Osamu Satoh, Akashi, JP;
Tomoyuki Uno, Kobe, JP;
Takayuki Murata, Akashi, JP;
Mamoru Nishio, Kobe, JP;
Kawasaki Jukugyo Kabushiki Kaisha, Kobe, US;
Abstract
A laser-welding head is capable of applying a fixed pressure to parts to be welded of workpieces regardless of the undulation of the surfaces of the parts to be welded. The laser-welding head includes a pressing device ( ) having a roller ( ) which rolls along parts of workpieces near a weld line ( ) to press together the same parts of the workpieces, a pressing unit ( ) for applying a predetermined pressure to the pressing device ( ) to press the pressing device ( ) toward the parts of the workpieces near the weld line ( ), and a laser beam projecting unit ( ) mounted on the pressing unit ( ) for movement together with the pressing device ( ). The pressing unit ( ) is provided with a pneumatic cylinder actuator for applying the predetermined pressure to the pressing device ( ).