Geared motor
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United States of America Patent
Stats
-
Aug 4, 2015
Grant Date -
Jun 12, 2014
app pub date -
Dec 5, 2013
filing date -
Dec 7, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A geared motor reduces a speed of rotation of a DC motor with a gear train and outputs the rotation to the outside. The gear train includes a second gear including a cylindrical portion a third gear a first insertion portion that is inserted in the cylindrical portion the second gear. The second gear and the third gear are made of a resin material. A projecting-and-recessed portion is provided on an inner peripheral surface of the cylindrical portion of the second gear. The projecting-and-recessed portion extends continuously in a circumferential direction over the entire circumference of the inner peripheral surface of the cylindrical portion. Pressing portions are evenly arranged in the circumferential direction on an outer peripheral surface of the first insertion portion of the third gear. The pressing portions are configured enter recesses in the projecting-and-recessed portion and press wall surfaces of the recesses.
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