DRIVING FORCE TRANSMISSION MECHANISM AND IMAGE FORMING APPARATUS

摘要

A driving force transmission mechanism includes a body that includes a transmission member, which transmits a driving force and includes a rotatable first surface and two first projections, and an installation unit that includes a receiving member including a second surface, which faces the first surface and which is rotatable by receiving the force when the installation unit is installed, and two second projections, which receive the force from the first projections by contacting the first projections when the first surface rotates, and that is removably installed in the body in a direction, in which the second surface moves parallel to the first surface, to couple the transmission member and the receiving member. The body includes a contact member that contacts, to rotate the receiving member, one of the second projections when the installation unit is installed while a line segment connecting the second projections is intersecting an installation direction.

主权项

1. A driving force transmission mechanism comprising:
a body including a transmission member that transmits a driving force and includes a first surface, which rotates, and two first projections that project from the first surface at positions, each of which is spaced apart from a center of rotation of the first surface; and an installation unit that includes a receiving member including a second surface, which faces the first surface and which rotates as a result of receiving the driving force in a state where the installation unit is installed in the body, and two second projections, which project from the second surface at positions each of which is spaced apart from a center of rotation of the second surface and which receive the driving force from the first projections by being in contact with the first projections in accordance with rotation of the first surface, and that is configured to be removably installed in the body in a direction in which the second surface moves parallel to the first surface in such a manner that the transmission member and the receiving member are coupled to each other, wherein the body further includes a contact member that comes into contact with one of the second projections while the installation unit is being installed in the body in an installation direction intersecting with a rotation axis of the first surface and the second surface in a state where a line segment connecting the second projections intersects the installation direction and that causes the receiving member to rotate before the second projections come into contact with the first projections while the installation unit is being installed in the body in the installation direction.