公开(公告)号：US11106159B2

公开(公告)日：2021-08-31

申请号：US16864285

申请日：2020-05-01

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Satoshi Ao ,  Daisuke Tanaka

IPC: G03G15/16

Abstract: A belt driving device includes plural rotating members around which a belt member extends, each rotating member rotating about a rotating shaft; and contact members disposed at both sides of the belt member in a width direction. The rotating members include a first rotating member, having a dimension less than a width of the belt member in a direction of the rotating shaft. Each contact member has a first contact point at which the contact member contacts the belt member and a second contact point closer to a corresponding one of the end portions in the width direction than the first contact point and at which the contact member contacts the belt member such that an angle between the contact member and the rotating shaft at the second contact point is greater than an angle between the contact member and the rotating shaft at the first contact point.