Patent ID: 9162836
Filing Date: 2015-10-20
Classification: B65H,F16D,G03G,H04N,Y10T

Abstract:
1. A medium transport device comprising: a feeding unit that feeds a medium from a medium storage portion; a transport unit that transports the medium fed by the feeding unit; a driving source; a transport driving unit for driving the transport unit, the transport driving unit being driven by the driving source; a feeding driving unit for driving the feeding unit; and a driving force transmission unit that transmits the driving force from the transport driving unit to the feeding driving unit; wherein the driving force transmission unit comprises: a connection-and-disconnection unit that connects and disconnects a transmission of the driving force from the transport driving unit to the feeding driving unit; and a driving force transmission device transmitting the driving force from the transport driving unit to the connection-and-disconnection unit, wherein the driving force transmission device comprises: a first rotating portion having a first facing portion; a second rotating portion having a second facing portion, the second rotating portion having an operation range partially overlapping with that of the first rotating portion; and a cushioning member provided between the first facing portion and the second facing portion, the cushioning member being deformed by being applied with a pressure; wherein the first rotating portion and the second rotating portion transmit a driving force in a state where the cushioning member is deformed by application of the pressure; and wherein the driving force transmission device absorbs a change in load caused when the connection-and-disconnection unit connects or disconnects the transmission of the driving force.