Driving apparatus having improved engagement
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 5, 2017
Issued Date -
N/A
app pub date -
Jun 19, 2014
filing date -
Jun 19, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A driving apparatus includes a driving input gear with first gear teeth, a columnar shaft, and a driven gear that engages the driving input gear. The driven gear includes a cylindrical boss portion, a cylindrical rim portion, a web, and second gear teeth. The second gear teeth are formed at an outer peripheral surface of the rim portion. The first gear teeth are first helical teeth twisted in a first direction with respect to a direction that the rotary drive shaft extends. The second gear teeth are second helical teeth twisting in a second direction that is the opposite of the first direction. The rim portion is tapered, radially decreasing toward the end to which the web is linked. The through-hole of boss portion has an inner diameter larger than an outer diameter of the shaft.
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