Patent ID: 8439783

Claim:
A penetrating shaft type planetary gear train apparatus with a bidirectional input and a one-way output, comprising: an input shaft ( 2000 ) connected to a bidirectional power source having a first rotary direction and a second rotary direction opposite the first rotary direction; an output shaft ( 3000 ) that is coaxial with and surrounds a portion of the input shaft ( 2000 ), said output shaft ( 3000 ) having a single rotary output direction; a transmission component including a planetary gear train for transmitting power between the input shaft ( 2000 ) and the output shaft ( 3000 ), said transmission including: a first drive train for driving said output shaft ( 3000 ) in said single output direction when said input shaft ( 2000 ) is driven in said first rotary direction; a second drive train for driving said output shaft ( 3000 ) in said single output direction when said input shaft ( 2000 ) is driven in said second rotary direction; at least two one-way transmissions ( 301 , 302 , 303 , 305 ) respectively installed in said first and second drive trains for preventing interference between said first and second drive trains when said input shaft ( 2000 ) is driven in said first and second rotary directions, at least one of said one-way transmissions being positioned between said input shaft ( 2000 ) and said output shaft ( 3000 ), and at the same time at least one other of the one-way transmissions being positioned between said output shaft ( 3000 ) and at least one of a planetary wheel support arm annular shelf ( 200 ) and a ring wheel ( 204 ) of said planetary gear train.