ROTATIONAL DRIVING FORCE TRANSMITTING APPARATUS

摘要

Provided is a rotational driving force transmitting apparatus, which can lighten the load on a motor or the like, to reduce an energy needed for inputting a consumed power or the like thereby to improve the output efficiency. The transmitting mechanism comprises an input unit and an output unit, and means of the output unit for receiving the input of the input unit has a straight gear train constituted to include an inner output gear for meshing with a stationary gear fixed on the bearing means of the output shaft of the output unit, a free gear for meshing with the inner output gear, and an outer output gear for meshing with the free gear. In response to an input from the input unit, the gear train revolves integrally with the input unit along the stationary gear, thereby to drive the output shaft rotationally. The individual gears constituting the gear train have their tooth numbers set so that the free gear may not rotate on its axis when the gear train revolves along the stationary gear.