Patent ID: 8275286

Claim:
A process cartridge comprising: a casing; a rotary member having a longitudinal axis L 1 , the rotary member being rotatably supported in the casing to permit rotation about the axis L 1 ; and a coupling member having a longitudinal axis L 2 , the coupling member having (i) a rotational force transmitting portion engageable with the rotary member, (ii) a rotational force receiving portion, and (iii) a connecting portion that connects the rotational force receiving portion to the rotational force transmitting portion, wherein the coupling member is movable between a first position in which the axis L 2 of the coupling member is coaxial with the axis L 1 of the rotary member, and a second position in which the axis L 2 of the coupling member is inclined with respect to the axis L 1 of the rotary member, wherein the rotational force receiving portion comprises (i) a surface on a side opposite the connecting portion, with the surface having an opening to a recess, and (ii) at least one pair of projections, with each projection having a tip that is the part of the projection that is farthest from the rotary member when the coupling member is in the first position, wherein at least part of the projections is farther from the rotational force transmitting portion than the surface having the opening, and wherein a surface of the rotational force receiving portion that defines the recess is slanted with respect to the axis L 2 .