ONE WAY TRANSMISSION FOR MOTOR
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United States of America Patent
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N/A
Issued Date -
Feb 24, 2011
app pub date -
Apr 29, 2009
filing date -
May 2, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Disclosed is a one way transmission for a motor, which has a structure for changing speed in the same direction as a motor normally rotate even when the motor rotates reversely. A one way transmission for a motor according to the present invention comprises a hub shell rotatably coupled to fixing shafts extending from both sides thereof; a built-in motor arranged in the hub shell and provided with a driving shaft; and a changing speed means mounted between the driving shaft and the hub shell to output driving rotation of the built-in motor to the hub shell in a one way with speed changed. The changing speed means comprises first and second sun gears coupled to an outer peripheral surface of the driving shaft to be spaced apart from each other, the first and second sun gears being constrained by one way clutches to have opposite directions, respectively, a first planetary gear engaged with the first sun gear, and a second planetary gear engaged with the second sun gear, the first planetary gear and the hub shell.
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