Driving force transmission device and image-forming apparatus
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United States of America Patent
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Jan 29, 2019
Grant Date -
Dec 28, 2017
app pub date -
Aug 22, 2017
filing date -
Sep 30, 2013
priority date (Note) -
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Abstract
Provided is a driving force transmission device including: an actuator (22) that, in a case where one of a first annular gear (11), a second annular gear (14), and a carrier (16) is an input member, another one is an output member, and the remaining one is a rotational member, causes one of the input member and the output member to rotate integrally with the rotational member. When driving force is inputted from the drive source to the input member and input member is rotated unidirectionally, the rotation direction of the output member in the case where one of the input member and the output member rotates integrally with the rotational member is reversed with respect to that in a case where one of the input member and the output member does not rotate integrally with the rotational member.
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