Patent attributes
A power transmitting apparatus for performing switching between 2-wheel and 4-wheel drive modes and locking and unlocking of a differential by an operational shaft can comprise a reversible motor, a driving shaft rotationally driven by the motor and adapted to be engaged by the operational shaft for transmitting a rotational force therebetween, a sub case for containing the motor and the driving shaft therein and mounted on the main case, an opening formed in the sub case and having a size permitting the operational shaft to be inserted and an end face of the driving shaft for engaging an end face of the operational shaft to be exposed, and a first sealing arranged on the inner circumferential surface of the opening at a position away from the driving shaft for sealing off the inside of the sub case with forming a seal between the inner circumferential surface of the opening and the outer circumferential surface of the operational shaft when the operational shaft is engaged with the driving shaft.
