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. 04, 2018
Filed:
Jan. 14, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kohei Hisada, Nagoya, JP;
Atsushi Kawakita, Miyoshi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A laser processing apparatus includes: a head main body housing an optical system; and a nozzle that is fastened to the head main body by thread fastening and that applies the laser beam to a workpiece. The nozzle has a nozzle hole through which the laser beam passes. A pressure chamber is formed between the head main body and the nozzle. The pressure chamber is a space surrounded by a bottom surface of the head main body, the bottom surface intersecting with a fastening direction in which the head main body and the nozzle are fastened together by thread fastening, and a bottom surface of the nozzle, the bottom surface intersecting with the fastening direction. The pressure chamber is supplied with air or assist gas. The nozzle has a communication hole that provides communication between the pressure chamber and the nozzle hole.