Patent ID: 6944933
Filing Date: 2005-09-20
Classification: H01R,H02K,Y10T

Abstract:
1. A manufacturing method for forming a rotor for small motors, the rotor being provided on its shaft with a plurality of rotor magnetic poles of a salient-pole configuration and a commutator unit, each of the rotor magnetic poles being composed of a winding around a laminated core and each of both ends of each wound wire being connected to a commutator leg part of a plurality of commutator leg parts with each being coupled with a tip of a corresponding commutator segment of the commutator unit, said method comprising steps of: punching and cutting out of a reel-wound flat parent metal sheet each of said commutator leg parts having a base portion coupled with a tip of a commutator segment and a tip portion narrowed stepwise to let a wound wire end be connected, and at the same time, fixing the commutator leg part to the commutator segment tip so as to extend outward in a direction substantially normal to a radial direction from the commutator segment tip.