SHAFT MEMBER, DRIVE DEVICE AND IMAGE FORMATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an axial member, a drive device and an image formation apparatus in which deterioration in assemblability due to rotation of a drive transmission member with respect to an axial member body can be suppressed.SOLUTION: In an axial member 50 comprising: an axial member body 51; a drive transmission member 52 which is provided so as to be movable with respect to the axial member body and in which a plurality of protrusions 56 connectable to connection object parts 61a of a drive transmission object member 61 are formed with an interval in the around-axial-line direction on a side surface 52b on the drive transmission object member side in the axial direction; an engagement member 53 which is provided by protruding from the peripheral surface of the axial member body so as to be engaged in the around-axial-line direction with the engagement object part 57a extending in the axial line direction of the drive transmission member; a restriction member 55 which is provided in the axial member body, brought into contact with the drive transmission member and restricts the movement of the drive transmission member to the drive transmission object member side in the axial direction; and an energization member 54 which is provided in the axial member body and energizes the drive transmission member to the drive transmission object member, the engagement object part is provided over the side opposite to the drive transmission object member side in the axial direction to the protrusion with respect to the side surface of the drive transmission member.SELECTED DRAWING: Figure 1