Patent ID: 6425175
Filing Date: 2002-07-30
Classification: H02K,Y10T

Abstract:
A method of manufacturing a stator having a plurality of twisted wires connected to each other, each of the twisted wires being formed of a letter U shaped wire having one straight line portion, another straight line portion in parallel to the one straight portion and a turning portion bridging between respective longitudinal ends of said one and another straight line portions, through a process comprising steps of:positioning said one and another straight line portions on outside and inside concentric circles perpendicularly thereto, respectively, so as to be aligned radially from an axis of said concentric circles; holding respective given longitudinal lengths of said one and another straight line portions slidably in a longitudinal direction thereof and forcing the respective given longitudinal lengths of said one and another straight line portions to rotate relatively in reverse along said concentric circles so that a distance between said one and another straight line portions is increased and said turning portion is twisted; and simultaneously when said turning portion is twisted, urging continuously a biasing force acting in longitudinal directions of said one and another straight line portions against at least one of a center of said turning portion and both the other longitudinal ends of said one and another straight line portions so that the other one of said center of said turning portion and said both the other longitudinal ends of said one and another straight line portions receives a reaction force of the biasing force.