Power transmitting apparatus and image forming apparatus adopting the same

摘要

A power transmitting apparatus includes a driving source, a driving member rotated by the driving source, a driven member linked with the driving member to rotate, a transmitting member disposed between the driving member and the driven member, the transmitting member being rotated by the driving member, axially moved along a rotation direction of the driving member so that the transmitting member is connected to the driven member, and an elastic member disposed between the transmitting member and the driven member, the elastic member providing an elastic bias into the transmitting member so that the transmitting member is separated from the driven member.

主权项

1. A power transmitting apparatus comprising:
a driving source; a driving member rotated by the driving source; a driven member selectively linked with the driving member to rotate; a transmitting member disposed between the driving member and the driven member, the transmitting member configured to be rotated by the driving member along a rotation direction of the driving member and axially moved so that the transmitting member is selectively connected to the driven member by coupling a protrusion to a groove corresponding to the protrusion; and an elastic member disposed between the transmitting member and the driven member, the elastic member providing an elastic bias into the transmitting member so that the transmitting member is selectively separated from the driven member, wherein the driving member is disposed between the driving source and the transmitting member, by rotation of the transmitting member in the rotation direction, the transmitting member imparts a rotational force to the driven member in the rotation direction through a contact surface between the protrusion and the groove, and the contact surface is inclined with respect to the rotation direction of the transmitting member so that the rotation of the transmitting member causes the transmitting member and the driven member to closely approach each other.