Variable speed epicyclic transmission devices

Details Variable speed epicyclic transmission devices Variable speed epicyclic transmission devices

F - Mech Eng,Light,Heat,Weapons

16

H

74/117, 74/220

F16H 15/08 (2006.01) F16H 15/52 (2006.01)

Patent

CA 1085185

S P E C I F I C A T I O N ABSTRACT OF THE DISCLOSURE An improved infinitely variable speed epicyclic drive mechanism having planet discs which are supported by a carrier and revolve on a track determined by a pair of sun discs and matching non-rotating peripheral annular members. In one embodiment, the planet discs are each rotatable in an arm or fork in turn rotatable in the carrier and means is provided to reduce centrifugally induced axial forces occurring between the planet discs and the surrounding annular members. In a further embodiment the sun discs are torque sensitively loaded towards each other for frictionally engaging the planet discs by helical gears in an epicyclic gear train to which the mechanism is coupled.

293089

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