US 12,187,560 B2
Driving force transmission device and image forming apparatus
Kohei Tachibana, Kanagawa (JP); and Yuya Shiokawa, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Aug. 16, 2021, as Appl. No. 17/403,854.
Claims priority of application No. 2021-050785 (JP), filed on Mar. 24, 2021.
Prior Publication US 2022/0305811 A1, Sep. 29, 2022
Int. Cl. B65H 1/14 (2006.01); B41J 29/38 (2006.01); B65H 1/04 (2006.01)
CPC B65H 1/04 (2013.01) [B41J 29/38 (2013.01); B65H 1/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A driving force transmission device comprising:
a rotating gear that is rotated by receiving a driving force;
a control unit that controls rotation of an output gear by being switched between a connection state where the control unit is connected to the output gear and a separation state where the control unit is separated from the output gear as states of the control unit with respect to the output gear, wherein the control unit comprises a cylindrical rotating member; and
an operation unit that is operated by receiving a force output from the rotating gear and includes a contact mechanism to be in contact with the control unit, the contact mechanism being moved by the force output from the rotating gear to operate the control unit and the contact mechanism then being separated from the control unit, wherein the contact mechanism is a protrusion,
wherein the operation unit is disposed between the rotating gear and the control unit,
wherein the contact mechanism is in contact with the control unit to operate the control unit, so that the connection state or the separation state is made, and
the driving force transmission device further comprises a retaining unit that retains the connection state or the separation state even after the contact mechanism is separated from the control unit.