US 12,449,759 B2
Cartridge, drum unit and image forming apparatus
Toshiki Fujino, Kanagawa (JP); Akinobu Hirayama, Shizuoka (JP); Teruhiko Sasaki, Shizuoka (JP); Tachio Kawai, Tokyo (JP); Daisuke Abe, Shizuoka (JP); Masanari Morioka, Kanagawa (JP); Takeo Kawanami, Kanagawa (JP); and Yu Fukasawa, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 9, 2024, as Appl. No. 18/630,073.
Application 18/630,073 is a division of application No. 17/988,064, filed on Nov. 16, 2022, granted, now 12,032,330.
Application 17/988,064 is a division of application No. 17/986,997, filed on Nov. 15, 2022, granted, now 12,038,716.
Application 17/986,997 is a continuation of application No. PCT/JP2021/035213, filed on Sep. 16, 2021.
Claims priority of application No. 2020-156549 (JP), filed on Sep. 17, 2020.
Prior Publication US 2024/0272583 A1, Aug. 15, 2024
Int. Cl. G03G 21/18 (2006.01); G03G 15/00 (2006.01)
CPC G03G 21/1814 (2013.01) [G03G 15/757 (2013.01); G03G 21/186 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cartridge comprising:
a photosensitive drum rotatable about a rotational axis of the photosensitive drum;
a casing having a first end portion and a second end portion opposite to the first end portion in a direction of the rotational axis of the photosensitive drum, the casing rotatably supporting the photosensitive drum; and
a coupling positioned adjacent to the first end portion of the casing, the coupling being operatively connected to the photosensitive drum so as to transmit a driving force toward the photosensitive drum,
wherein the coupling includes:
a main body configured to rotate about a rotational axis of the main body to thereby transmit the driving force,
at least one engaging member, the engaging member being pivotable relative to the main body between a first position and a second position about a pivot axis that is nonparallel to the rotational axis of the main body, the engaging member having a first end portion and a second end portion, with the engaging member being configured to transmit the driving force toward the photosensitive drum via the main body,
wherein, when the engaging member is in the first position, the first end portion of the engaging member is positioned closer to the rotational axis of the main body than the second end portion of the engaging member is to the rotational axis of the main body,
wherein, when the engaging member is in the first position, the second end portion of the engaging member is positioned closer to the second end portion of the casing in the direction of the rotational axis of the photosensitive drum than the first end portion of the engaging member is to the second end portion of the casing in the direction of the rotational axis of the photosensitive drum,
wherein, the first end portion of the engaging member is positioned closer to the rotational axis of the main body when the engaging member is in the first position than when the engaging member is in the second position, and
wherein, the second end portion of the engaging member is positioned closer to the second end portion of the casing in the direction of the rotational axis of the photosensitive drum when the engaging member is in the second position than when the engaging member is in the first position.