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:
May. 31, 2022
Filed:
Dec. 19, 2018
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25J 9/10 (2006.01); F16H 48/08 (2006.01);
U.S. Cl.
CPC ...
B25J 9/102 (2013.01); F16H 48/08 (2013.01);
Abstract
Provided is a drive device that can remove the influence of static friction by driving two drive axes with three drive units. A drive device includes: a first drive unit; a second drive unit; a third drive unit; a first differential unit connected to the first drive unit and the second drive unit; a second differential unit connected to the second drive unit and the third drive unit; and a control unit that controls the first to third drive units. The control unit controls the second drive unit at a constant speed, and controls a speed of each of the first drive unit and the third drive unit relative to that of the second drive unit.