Armature for dynamo-electric machine and method for manufacturing the same

摘要

A method includes the steps of forming a substantially U-shaped insulator having outwardly bent portions formed by bending the side portions thereof at bent parts so as to be apart from each other, forming winding assemblies including strands of wire wound in a predetermined wound state, mounting the insulator in each slot in a manner such that the outwardly bent portions of the insulator protrude from an opening of the slot, and inserting the winding assemblies in each insulator from an open side of the slot by being guided by the outwardly bent portions and pushing the winding assemblies together with the insulator into each slot.