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:
Sep. 14, 1999
Filed:
Mar. 09, 1998
Hironori Ogawa, Osaka, JP;
Hirokazu Yoda, Ibaraki, JP;
Daihen Corporation, Osaka, JP;
Abstract
A two-armed transfer robot includes a pair of double-pantograph mechanisms. These mechanisms are substantially symmetrical to each other with a vertical plane. Each double-pantograph mechanism includes a first pantograph assembly and a second pantograph assembly. The second pantograph assembly supports a handling member for carrying a workpiece to be processed. The second pantograph assembly is offset away from the vertical plane with respect to the first pantograph assembly. A rotation-transmitting mechanism is provided between the first and the second pantograph assemblies of each double-pantograph mechanism. Thus, the two pantograph assemblies of each double-pantograph mechanism are actuated in cooperation for linearly moving the handling member. The handling members of the respective double-pantograph mechanisms are vertically spaced from each other. The handling members are arranged not only to move linearly but to rotate simultaneously around a vertical axis.