DEVICE FOR SHAVING PROJECTION FORMED ON FLYWHEEL AND METHOD OF SHAVING PROJECTION

摘要

Triggering projections for obtaining a trigger signal can be shaved with high circularity, and the projections have an excellent sensing function as a trigger, where the projections are punched out in a projecting manner from the outer periphery of a yoke of a flywheel. A boss plate (5) is previously fixed by staking to a yoke (2) that forms a flywheel (1). A shaving device (7) is constructed such that a support shaft section (10), on which a boss tube section of the boss plate (5) is fitted, is provided on the fixed base (8) side and that a shaving die (15) is provided on a movable based (14) side, the shaving die (15) being co-axial with the support shaft section (10) and shaving a projection (2e) in the axial direction of the support shaft section (10).