Patent ID: 11878891
Assignee: FUJIFILM BUSINESS INNOVATION CORP.
Field: Optics (Instruments)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A cylinder member comprising:
a cylinder body having a substantially circular cross section and including a dent portion that extends in an axial direction;
a sheet member wrapped around the cylinder body and including a metal layer that is in contact with the cylinder body and an outer layer provided on the metal layer;
a first attachment member provided on a first end portion of the sheet member and removably attached to the dent portion at a first side of the dent portion in a circumferential direction;
a second attachment member provided on an end portion of the metal layer that protrudes from the outer layer in the circumferential direction at a second end portion of the sheet member, the second attachment member being removably attached to the dent portion at a second side of the dent portion in the circumferential direction;
a tension-applying mechanism that pulls the second attachment member in a depth direction of the dent portion to apply tension to the metal layer;
a projection provided on one of the second attachment member and the end portion of the metal layer; and
a fitting portion provided on other one of the second attachment member and the end portion of the metal layer and fitted to the projection.