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:
Apr. 17, 1990
Filed:
Dec. 09, 1988
Toshihiro Nishiwaki, Kanagawa, JP;
Obara Corporation, Tokyo, JP;
Abstract
A tool changer for welding robot comprising: detachable male portions of connectors provided at a substrate fixed to a robot arm side for supplying electricity, gas, air, water to the tool side from the robot arm side; and detachable female portions of connectors to be connected to the male portions of the connectors and provided at a substrate fixed to a tool side for receiving electricity, gas, air, water from the male portions of connectors, each female portion composed of the connector, a protective tube provided at the substrate fixed to the welding gun side, a coupler inserted inside thereof, and an O-ring provided between the protective tube and the coupler, wherein the connector and the coupler are integrally formed and are radially slidable within the protective tube around the O-ring. A transformer is provided centrally of the connectors on the robot arm side substrate.