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:
Jun. 04, 2002
Filed:
Sep. 08, 2000
Katsuhiro Yamazoe, Okayama, JP;
Tazmo Co., Ltd., Okayama, JP;
Abstract
A horizontal multi-joint industrial robot has three arms of first, second and third arms which are sequentially attached from a base member, and has a robot hand which is connected to an distal end portion of the third arm. In this composition, there are two states of folding directions of arm joints with respect to a robot hand movement. When the robot hand moves in a forward direction, rotational movement of the arms is controlled so as to select one of the folding directions such that an angle between a robot hand direction and the third arm maintains 90° or more. This allows a distal end portion of the second arm to always position behind a distal end portion of the third arm with respect to the robot hand forward direction, which makes it possible to decrease a robot arm movable area that makes no contribution toward conveying a workpiece, thereby saving space for installing the robot.