Patent ID: 6257384
Filing Date: 2001-07-10
Classification: F16D

Abstract:
A two-way differential clutch comprising a rotary shaft rotatably supported by rolling bearings, an input gear rotatably supported on said rotary shaft by a rolling bearing, an output gear provided on one side of said input gear so as to be rotatable about said rotary shaft, two retainers having different diameters and mounted between an outer circumferential surface of said rotary shaft and an inner circumferential surface of said input gear one upon the other, a small-diameter one of said retainers rotatably supported by a rolling bearing mounted on said rotary shaft and a large-diameter one of said retainers mounted on said small-diameter retainer so as to rotate together with said input gear, a flange provided on the outer circumference of one end of said small-diameter retainer protruding beyond one end of said input gear, a friction plate and a partially cut-apart resilient ring provided at one side of said flange, said resilient ring pressing said friction plate against said flange, and sprags mounted to straddle pockets formed in said two retainers so as to be inclined until both ends of said sprags come into contact with an outer circumferential surface of said rotary shaft and an inner circumferential surface of said input gear by relative rotation of said small-diameter retainer and said large-diameter retainer, characterized in that said friction plate is provided with a restricting portion for restricting the amount of radial expansion of said resilient ring.