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. 23, 2021
Filed:
Mar. 12, 2020
Naohiro Kumagai, Kanagawa, JP;
Masanari Fujita, Tokyo, JP;
Katsuya Kawagoe, Kanagawa, JP;
Masaharu Furuya, Kanagawa, JP;
Hiroki Nakamatsu, Kanagawa, JP;
Yoshiki Hozumi, Kanagawa, JP;
Naohiro Kumagai, Kanagawa, JP;
Masanari Fujita, Tokyo, JP;
Katsuya Kawagoe, Kanagawa, JP;
Masaharu Furuya, Kanagawa, JP;
Hiroki Nakamatsu, Kanagawa, JP;
Yoshiki Hozumi, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A belt control device includes a plurality of rollers, a belt wound around the plurality of rollers and configured to rotate along with the plurality of rollers, a belt contact member that the belt contacts when the belt moves in an axial direction of the plurality of rollers, and a shaft displacement member movable in the axial direction and including an inclined face inclined with respect to a surface of the belt to control movement of the belt in the axial direction. The belt, the belt contact member, and the shaft displacement member are configured to make a frictional force between an edge of the belt and the belt contact member greater than a frictional force between the belt contact member and the shaft displacement member.