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:
Dec. 02, 2003
Filed:
Dec. 18, 2001
Tetsuya Kubota, Kobe, JP;
Yoshimitsu Kurosaki, Kakogawa, JP;
Eiichi Yagi, Kobe, JP;
Tomoyuki Uno, Kobe, JP;
Hirotaka Uehara, Ashiya, JP;
Osamu Satoh, Akashi, JP;
Shigekazu Shikoda, Akashi, JP;
Takayuki Murata, Akashi, JP;
Mamoru Nishio, Kobe, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Abstract
A weld portion detector ( ) and a laser beam projector ( ) disposed a predetermined distance behind the weld portion detector ( ) are moved together. The weld portion detector ( ) detects a weld line and the laser beam projector ( ) projects on the weld line detected by the weld portion detector ( ) for laser welding. Pieces of data on weld positions sequentially detected by the weld portion detector ( ) are stored sequentially in combination with times when the pieces of data on the weld positions are obtained and moving speeds of the weld portion detector ( ) in a memory. A time when the weld portion detector ( ) passed a point at which the laser beam projector ( ) has just arrived is calculated on the basis of the times and the moving speeds stored in the memory. The laser beam projector ( ) projects a laser beam on a weld position detected at the thus calculated time.