Patent ID: 8157074

Claim:
A centrifugal clutch comprising: a shoe that is provided to be rotatable about a boss; wherein the shoe comprises: a thin portion formed by reducing a thickness of a body of the shoe from first and second sides of the body; a fitting hole that is provided in the thin portion and rotatably fits with the boss; and a notch that is provided in the thin portion and communicates with the fitting hole, wherein the notch has a pair of notch faces on opposite sides thereof; wherein the thin portion of the shoe is interposed between a brim provided to a first axial end of the boss and a plate adjacent to a second axial end of the boss; wherein the boss is provided to a distal end of an arm that extends from a hub, the hub being configured to be attached to an output shaft; wherein the boss and the shoe are coupled in such a manner that the arm lies within the notch in the shoe; and wherein a range of rotation of the shoe is restricted by interaction of the arm and the notch faces of the notch, which are configured to abut the arm.