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. 10, 2001
Filed:
Jul. 14, 1999
Kenichiro Hiruma, Hachioji, JP;
Shinji Suzuki, Hachioji, JP;
Rika Miyazawa, Hachioji, JP;
Yoshihito Sakashita, Hachioji, JP;
Haruhiko Tanaka, Hachioji, JP;
Kikue Hosono, Hachioji, JP;
Janome Sewing Machine Co., Ltd,, Tokyo, JP;
Abstract
Disclosed is a SCARA robot having a robot body, a mount movable vertically of the robot body, a first arm having one end operatively connected to the mount such that the first arm may turningly move in a horizontal plane, a second arm having one end operatively connected to the opposite end of the first arm such that the second arm may turningly move in a horizontal plane, and an R shaft rotatably mounted on the free end of the second arm, wherein stepping motors,and,are provided to move the first and second arms, the R-shaft and the mount respectively, and encoders are provided to count the stepping pulses of the stepping motors. The counted pulses are feedbacked to CPU,so that the CPU,may correct errors when the errors are detected between the counted number of pulses and a required number of pulses. When the errors are detected, the stepping motors may be stopped and the errors may be indicated.