| 摘要 |
<p>The purpose of the invention is to provide a drive transmission unit, which has a small number of parts and a simple configuration and which is capable of limiting the sounds of impact between the input part and the output part in the coupling section. A drive transmission unit in which, when the input member is rotating in the forward direction, the output member receives the driving force from the input member via an intermediate member and rotates. The intermediate member is provided with a first receiving section, which receives a forward rotation driving force that has been input to the input member and has been converted to a force in the direction for moving the intermediate member along the direction of the rotation axis to the position for transmitting the driving force to the output member, and a second receiving section, which receives a reverse rotation driving force that has been input to the input member and has been converted to a force in the direction for withdrawing the intermediate member along the direction of the rotation axis from the position for driving the output member.</p> |
