US Patent 10459402 Cartridge and electrophotographic image forming apparatus

In a cartridge employing an inclinable coupling member engaging with a rotational force transmitting portion of an electrophotographic image forming apparatus, the coupling member is configured to not engage with the rotational force transmitting portion of the electrophotographic image forming apparatus when the mounting and dismounting direction and the developing/spacing direction relative to the electrophotographic image forming apparatus are different from each other. A coupling lever is provided to contract and retract relative to the coupling member in interrelation with the mounting and dismounting operation of the cartridge, and a coupling spring for the coupling lever is provided to apply an urging force to the coupling member.