Motor-driven hinge device for vehicle seat hinge
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United States of America Patent
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Oct 10, 2017
Grant Date -
Oct 8, 2015
app pub date -
Oct 9, 2013
filing date -
Oct 26, 2012
priority date (Note) -
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Abstract
A motor-driven hinge device may include a hypocycloid hinge mechanism driven by a drive shaft, two metal side plates intended for connection to the seating portion and to the backrest, a brushless motor, and a planetary gear train positioned between the brushless motor and the drive shaft. The planetary gear train may include a sun gear connected to the motor rotor, and a plurality of planet gears, each planet gear having a first set of teeth engaging with the sun gear and with a first stationary ring gear, and a second set of teeth engaging with a second ring gear rigid with the drive shaft.
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