Patent ID: 7225526

Claim:
A method of producing a wiring of a dynamo-electric machine, in which a plurality of electric conductors respectively having insulating coats on surfaces thereof are received in each of a plurality of slots formed in a stator core in a line along a circumferential direction of the stator core so as to form a plurality of coil ends of the electric conductors when portions of the electric conductors protruded from an end surface of the stator core are bent in the circumferential direction of the stator core, the method comprising the steps of: forming a first copying surface in a slot opening forming cut at an end of each slot on the end surface of the stator core so as to be curved along a bending direction of the corresponding electric conductors; forming a second copying surface on each of a plurality of bending members; inserting each bending member into an area between two corresponding slots adjacent to each other in the circumferential direction on the end surface of the stator core such that the second copying surface of the bending member is curved along a bending direction of the electric conductors of the slots and such that a successively-curved shape is formed out of both the first copying surface placed at each of the ends of the two slots and the second copying surface; bending each of the electric conductors along the corresponding first copying surface; and further bending each of the electric conductors along the corresponding second copying surface such that the electric conductor is bent in the successively-curved shape.