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:
Jul. 30, 2019
Filed:
Oct. 03, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Yasuhiko Fuse, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A transmission member configured to transmit driving of a driving member to a driven member includes a first engaging portion for engaging with the driving member and a spring portion having a shape wound around an axis. The spring portion is to be compressed in a direction of the axis. The spring portion includes a first wound portion wound around the axis and a second wound portion wound around the axis. The second wound portion is connected to the first wound portion and includes a small-radius portion. The small-radius portion is disposed such that, when the spring portion is projected in the direction of the axis, an outer portion of the small-radius portion is projected to inside of a mid-portion between an outer portion of the first wound portion and an inner portion of the first wound portion in a direction perpendicular to the axis.