US 12,072,669 B2
Cartridge having a member for transmitting a driving force for rotating a developing roller
Shinichi Nishida, Kawasaki (JP); Yuichi Fukui, Yokosuka (JP); Tetsushi Uneme, Kawasaki (JP); Yasuyuki Egami, Tokyo (JP); Yohei Anzai, Kawasaki (JP); Takeo Kawanami, Kamakura (JP); Toshiki Fujino, Kawasaki (JP); Sohta Sugimoto, Yokohama (JP); and Fumiya Sawashima, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Oct. 25, 2021, as Appl. No. 17/509,184.
Application 17/509,184 is a division of application No. 16/713,561, filed on Dec. 13, 2019, granted, now 11,392,082.
Application 16/713,561 is a continuation of application No. PCT/JP2018/023714, filed on Jun. 15, 2018.
Claims priority of application No. 2017-117890 (JP), filed on Jun. 15, 2017.
Prior Publication US 2022/0050417 A1, Feb. 17, 2022
Int. Cl. G03G 21/18 (2006.01); G03G 21/16 (2006.01)
CPC G03G 21/1864 (2013.01) [G03G 21/1647 (2013.01); G03G 21/1825 (2013.01); G03G 21/186 (2013.01); G03G 2221/1654 (2013.01); G03G 2221/1657 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge comprising:
a developing roller;
a coupling member for transmitting a driving force for rotating the developing roller toward the developing roller by rotating about an axis, the coupling member being provided with (i) a driving force receiving portion configured to receive the driving force from outside of the cartridge and (ii) an open space provided between the driving force receiving portion and the axis and being open to outside of the cartridge, the driving force receiving portion being configured to be movable between (i) a first receiving portion position and (ii) a second receiving portion position that is more remote from the axis than the first receiving portion position is from the axis; and
a rotatable member rotatable about the axis relative to the coupling member between (i) a first rotational position for placing the driving force receiving portion in the first receiving portion position and (ii) a second rotational position for moving the driving force receiving portion to the second receiving portion position or for permitting movement of the driving force receiving portion to the second receiving portion position,
wherein, in a state that the developing roller and the coupling member do not rotate, the rotatable member is capable of rotating from the second rotational position to the first rotational position.