US 11,835,907 B2
Drum unit, process cartridge and image forming apparatus
Shigemi Kamoshida, Yokohama (JP); and Yu Fukasawa, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 11, 2022, as Appl. No. 17/717,350.
Application 17/717,350 is a division of application No. 17/117,257, filed on Dec. 10, 2020, granted, now 11,334,017.
Application 17/117,257 is a division of application No. 16/564,335, filed on Sep. 9, 2019, granted, now 10,915,055, issued on Feb. 9, 2021.
Application 16/564,335 is a division of application No. 15/939,997, filed on Mar. 29, 2018, granted, now 10,452,016, issued on Oct. 22, 2019.
Application 15/939,997 is a continuation of application No. PCT/JP2016/079879, filed on Sep. 30, 2016.
Claims priority of application No. 2015-193826 (JP), filed on Sep. 30, 2015.
Prior Publication US 2022/0236685 A1, Jul. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 15/00 (2006.01); G03G 21/18 (2006.01)
CPC G03G 15/757 (2013.01) [G03G 21/1864 (2013.01); G03G 21/1821 (2013.01); G03G 21/1853 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A cartridge comprising:
a photosensitive drum having an axis L1;
a coupling member having an axis L2, the coupling member being operatively connected to an end portion of the photosensitive drum, the coupling member being movable along the axis L2 and being provided with a projection extending in a direction away from the photosensitive drum; and
a frame rotatably supporting the photosensitive drum,
wherein the projection includes an inner surface facing the axis L2, at least a part of the inner surface increasing in distance from the axis L2 as the distance from the photosensitive drum increases in a direction of the axis L1, and a tip of the projection is a part of the coupling member most distant from the photosensitive drum and is a part of the projection most distant from the axis L2.