Power transmission device and image forming apparatus including same
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Feb 24, 2015
filing date -
Feb 25, 2014
priority date (Note) -
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Abstract
A power transmission device includes coaxially a first rotary body including a first gear on a drive source side, a second rotary body including a second gear on a driven side, a third rotary body including a third gear movably held to transmit a driving force, and a guide member disposed at one of the first gear, the second gear, and the third gear to contact a first end surface of a gear tooth of another of the first gear, the second gear, and the third gear, serving as a mating gear, to guide the first end surface between teeth of the one of the first gear, the second gear, and the third gear. The guide member extends toward the mating gear and a tip of the guide member is placed at a distance from an end of the one of the gears in the axial direction.
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