Patent ID: 6741004
Filing Date: 2004-05-25
Classification: H02K

Abstract:
An armature for a dynamo-electric machine, the armature comprising:an armature core provided with a plurality of slots extending in an axial direction and disposed alongside each other in a circumferential direction; an armature winding inserted in the slots so as to be mounted on the armature core; and an insulator mounted in each of the slots for insulating between the armature core and the armature winding, wherein the insulator is disposed between an inner face of each slot and the armature winding, and first creases are formed on side portions of each insulator so as to extend in a lengthwise direction of the slot at a slot-opening end of the side portions, the first creases being preformed prior to the insulator being mounted in said slots by first bent parts for angling the slot-opening ends of the side portions so as to be apart from each other.