Phase regulating apparatus

A phase regulating apparatus for performing phase regulation of first and second rotary bodies driven to rotation by the same driving motor, having a phase regulating speed reducer disposed in a rotational force transmission path from said driving motor to said second rotary body, and upon phase regulation, said phase regulating speed reducer being driven by a phase regulating motor, comprising;

• said phase regulating speed reducer having first and second wave gear drives arranged in parallel relationship in coaxial state,
• said first wave gear drive including an annular first rigid internal gear, a cup-shaped first flexible external gear arranged inside of said first rigid internal gear, and a first wave generator arranged inside of said first flexible external gear, deforming said first flexible external gear in a radial direction for partially meshing with said first rigid internal gear, and said first wave generator being coupled with the phase regulating motor,
• said second wave gear drive including an annular second rigid internal gear, a cup-shaped second flexible external gear arranged inside of said second rigid internal gear, and a second wave generator arranged inside of said second flexible external gear, deforming said second flexible external gear in a radial direction for partially meshing with said second rigid internal gear, and said second wave generator being fixed in a non-rotatable state, said second flexible external gear being fixed with said first flexible external gear in back-to-back relationship for integral rotation;
• at least one of said first and second rigid internal gear being input a rotation, and a rotational output being obtained from the other gear;
• wherein said first and second flexible external gears are produced as an integral product.

A phase regulating speed reducer arranged in a rotational force transmission path between first and second rotary bodies, and being driven by a phase regulating motor for performing phase regulation of said first and second rotary bodies, comprising:

• first and second wave gear drives arranged in parallel relationship with each other in coaxial condition relative to each other,
• said first wave gear drive including an annular first rigid internal gear, a silk hat type first flexible external gear arranged inside of said first rigid internal gear, and a first wave generator arranged inside of said first flexible external gear, deforming said first flexible external gear in a radial direction for partially meshing with said first rigid internal gear, and said first wave generator being coupled with a phase regulating motor,
• said second wave gear drive including an annular second rigid internal gear, a silk hat type second flexible external gear arranged inside of said second rigid internal gear, and a second wave generator arranged inside of said second flexible external gear, deforming said second flexible external gear in a radial direction for partially meshing with said second rigid internal gear, said second flexible external gear being fixed with said first flexible external gear in back-to-back relationship for integral rotation, and said second wave generator being fixed in a non-rotatable state,
• at least one of said first and second rigid internal gear, being input a rotation, and a rotational output being obtained from the other gear, and
• wherein said first and second flexible external gears are produced as an integral product.

A phase regulating apparatus for performing phase regulation of first and second rotary bodies driven to rotation by the same driving motor, having a phase regulating speed reducer disposed in a rotational force transmission path from said driving motor to said second rotary body, and upon phase regulation, said phase regulating speed reducer being driven by a phase regulating motor, comprising;

• said phase regulating speed reducer having first and second wave gear drives arranged in parallel relationship in coaxial state,
• said first wave gear drive including an annular first rigid internal gear, a silk hat type first flexible external gear arranged inside of said first rigid internal gear, and a first wave generator arranged inside of said first flexible external gear, deforming said first flexible external gear in a radial direction for partially meshing with said first rigid internal gear, and said first wave generator being coupled with the phase regulating motor,
• said second wave gear drive including an annular second rigid internal gear, a silk hat type second flexible external gear arranged inside of said second rigid internal gear, and a second wave generator arranged inside of said second flexible external gear, deforming said second flexible external gear in a radial direction for partially meshing with said second rigid internal gear, and said second wave generator being fixed in a non-rotatable state, said second flexible external gear being fixed with said first flexible external gear in back-to-back relationship for integral rotation,
• at least one of said first and second rigid internal gear and being input a rotation, and a rotational output being obtained from the other gear,
• wherein said first and second flexible external gears are produced as an integral product.