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:
Sep. 20, 2022
Filed:
Oct. 25, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 17/56 (2021.01); F16M 11/12 (2006.01); F16M 11/18 (2006.01); F16C 19/54 (2006.01); F16M 11/04 (2006.01); F16M 11/10 (2006.01); F16H 1/20 (2006.01); F16H 57/02 (2012.01); F16H 57/027 (2012.01); F16H 57/04 (2010.01);
U.S. Cl.
CPC ...
G03B 17/561 (2013.01); F16C 19/54 (2013.01); F16M 11/04 (2013.01); F16M 11/10 (2013.01); F16M 11/12 (2013.01); F16M 11/126 (2013.01); F16M 11/18 (2013.01); F16H 1/20 (2013.01); F16H 57/027 (2013.01); F16H 57/0416 (2013.01); F16H 2057/02026 (2013.01); F16H 2057/02039 (2013.01);
Abstract
A rotational mechanism includes a frame, a plurality of rotational units, an inner ring rotatably supported on the frame via the plurality of rotational units, and a rotation driving unit configured to generate power for rotating the inner ring. The inner ring is provided with a protrusion portion on an outer periphery. Each of the plurality of rotational units includes two bearings and a first pressing unit. The first pressing unit is configured to apply pressing forces to the two bearings in opposite directions in a rotational axis direction of the inner race. The protrusion portion is held between the two bearings due to the pressing forces.