Patent ID: 7644492

Claim:
A dynamoelectric winding end portion forming apparatus in which a plurality of conductor end portions that project axially outside a stator core adjacently from a coil end of a stator winding that is wound onto said stator core are selected and formed by bending, said dynamoelectric winding end portion forming apparatus comprising: a holding jig that independently holds a selected conductor end portion so as to permit movement of said selected conductor end portion in an axial direction and restrain movement thereof in a direction that is perpendicular to said axial direction, wherein said holding jig is an elongated cylindrical body having a longitudinal central axis alone which is formed a conductor insertion aperture that has an inside diameter slightly larger than an outside diameter of said selected conductor end portion and a tip end that faces the coil end of the stator winding; a holding jig elevating portion that moves said holding jig so as to make said conductor insertion aperture hold a region of said selected conductor end portion that is a predetermined distance away from said coil end in an axial direction of said stator core; and a main drive portion that moves said conductor insertion aperture that is holding said region of said selected conductor end portion to a vicinity of said coil end along an arc that is centered around a projecting root end portion of said selected conductor end portion located near said coil end and that has a radius equal to a distance from the tip end to the projecting root end portion thereby simultaneously forming two bends on said selected conductor end portion wherein a first bend is located at the projecting root end portion of said selected conductor end portion and a second bend is located on a portion of said the conductor end portion located near the tip end of said conductor insertion aperture.