公开(公告)号：US20170252920A1

公开(公告)日：2017-09-07

申请号：US15604655

申请日：2017-05-25

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Youichi MOTOMURA ,  Kentaro TANAKA

IPC: B25J9/10

CPC classification number: B25J9/102 ,  B25J9/0009 ,  B25J17/0258 ,  B25J19/0025 ,  Y10S901/23 ,  Y10S901/26

Abstract: A robot arm includes a first holder and a second holder. The first holder includes a first base portion and a first distal portion. The first distal portion has a first distal thickness smaller than a thickness of the first base portion. The second holder includes a second base and a second distal portion. The second distal portion has a second distal thickness smaller than a thickness of the second base portion. A first rotator is supported by the first distal portion and the second distal portion. A second rotator is supported by the first rotator. A first bevel gear is provided in the first distal portion. Another first bevel gear is provided in the second distal portion. A second bevel gear engages with the first bevel gear and the another first bevel gear.