Driving device and image forming apparatus including the driving device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 1, 2015
Grant Date -
Mar 13, 2014
app pub date -
Aug 22, 2013
filing date -
Sep 7, 2012
priority date (Note) -
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Abstract
A driving device includes a drive source, a planetary gear decelerator, a drive-target shaft, a rotation speed detector, and a sensor mount. The planetary gear decelerator includes a planetary gear mechanism equipped with an output shaft, a sun gear, an outer gear, a plurality of planetary gears, and a rotatable first carrier. The outer gear is made of resin and includes a deformable portion at a drive target side, and the deformable portion is elastically deformable in a radial direction. The plurality of planetary gears engages the sun gear and the outer gear. The rotatable first carrier rotatably supports the planetary gears. The rotation speed detector detects a rotation speed of the planetary gear decelerator, and includes a sensor and a detection target disposed coaxially on the output shaft. The sensor mount supports the sensor and moves in the radial direction in accordance with elastic deformation of the outer gear.
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