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. 20, 2025
Filed:
Mar. 18, 2020
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Kenzou Nose, Iwata, JP;
Hideki Matsuzawa, Iwata, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 21/02 (2006.01); B25J 9/00 (2006.01); B25J 9/16 (2006.01); F16H 21/46 (2006.01);
U.S. Cl.
CPC ...
F16H 21/02 (2013.01); B25J 9/0048 (2013.01); B25J 9/1623 (2013.01); F16H 21/46 (2013.01);
Abstract
A parallel link mechanism includes a proximal end-side link hub, three link mechanisms, a rotating body, and a distal end-side link hub. The rotating body is connected to one link mechanism among the three link mechanisms. The rotating body is rotatably coupled to the proximal end-side link hub. In the link mechanism, a first center axis of a first revolute pair portion intersects with a second center axis of a second revolute pair portion at a spherical link center point. The rotation center axis of the rotating body intersects with the spherical link center point.