Patent ID: 6622814
Filing Date: 2003-09-23
Classification: B62D,F16H,Y10S,Y10T

Abstract:
An electric power steering device, comprising:a driving gear; and a driven gear which meshes with said driving gear, said driven gear having a metal core ring and a gear body made of synthetic resin material, at least an outer periphery of said core ring being covered by said gear body; said gear body being molded and integrated with said core ring by injecting synthetic resin material into a mold in which said core ring is inserted; a plurality of teeth having faces being formed on the outer periphery of said core ring so as to be arranged at intervals in a circumferential direction; the entire spaces between said teeth of said core ring being filled by the synthetic resin material; said teeth of said core ring having a module smaller than a module of said teeth of said gear body.