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:
Mar. 17, 2020
Filed:
Dec. 11, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Shota Kase, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); F16F 3/04 (2006.01); F03G 1/02 (2006.01); G03G 21/16 (2006.01); F16D 43/202 (2006.01); F16F 1/12 (2006.01); F16H 1/20 (2006.01); F16D 41/18 (2006.01);
U.S. Cl.
CPC ...
F03G 1/02 (2013.01); F16D 43/202 (2013.01); F16F 1/12 (2013.01); G03G 15/757 (2013.01); G03G 21/1647 (2013.01); F16D 41/185 (2013.01); F16H 1/20 (2013.01); G03G 2221/1657 (2013.01);
Abstract
A coil spring unit includes a coil spring; and a metal plate supporting the coil spring, the metal plate including a plurality of supporting portions cooperative with each other to support the coil spring, wherein the supporting portions are provided by bending the metal plate at bending lines and have supporting surfaces substantially perpendicular to the bending lines, respectively, and wherein the supporting surfaces are substantially parallel with outside tangential lines of the coil spring and support the coil spring.