Patent ID: 7117844
Filing Date: 2006-10-10
Classification: B21K,F02D,F16D,Y10T

Abstract:
1. A connecting structure between a rotary shaft having a center axis and a metal plate, wherein the rotary shaft is composed of a large-diameter shaft portion and a small-diameter shaft portion which are connected to each other with a predetermined difference in diameter so as to define therebetween a shoulder surface orthogonal to the center axis, plural stripes of swaged streaks extending in a direction of shaft length are formed on an outer peripheral surface of the small-diameter shaft portion through plastic deformation by applying a load to the outer peripheral surface, a mount hole adapted to be fitted onto the small-diameter shaft portion is formed in the metal plate, the mount hole of the metal plate is press-fitted onto the small-diameter shaft portion so as to be subjected to plastic deformation by the swaged streaks the metal plate being pushed again the shoulder surface, and the outer peripheral surface of the small-diameter shaft portion and the mount hole of the metal plate are joined by laser welding.