Patent ID: 8197349
Filing Date: 2012-06-12
Classification: F16D,Y10S,Y10T

Abstract:
1. A shock absorbing propeller shaft apparatus for a motor vehicle, comprising: first and second propeller shafts being coupled by a constant velocity joint; an inner shaft end provided in the first propeller shaft; and a tubular outer shaft end provided in the second propeller shaft, the inner shaft end of the first propeller shaft being fitted to the tubular outer shaft end of the second propeller shaft via the constant velocity joint, wherein a shaft spline provided in the inner shaft end in the first propeller shaft is fitted to a hole spline provided in an inner race of the constant velocity joint, a stop ring is fitted to an annular groove provided in an outer periphery of the inner shaft end close to a base end with respect to a portion to which the inner race of the constant velocity joint in the inner shaft end is fitted, a collar main body of a collar is inserted to an outer periphery of the inner shaft end between the portion to which the inner race of the constant velocity joint in the inner shaft end is fitted and a portion to which the stop ring is fitted, and a flange portion protruding out in an axial direction from an outer diameter side in one end of the collar main body is attached to cover an outer periphery of the stop ring, a stop ring is attached to an annular groove provided in an outer periphery of the inner shaft end close to a leading end with respect to the portion to which the inner race of the constant velocity joint in the inner shaft end is fitted, the inner race of the constant velocity joint is held and fixed from both sides in the axial direction between the other end of the collar main body of the collar and the stop ring; and a groove side surface of the annular groove which is provided in the outer periphery close to the base end of the inner shaft end and to which the stop ring is fitted, the groove side surface being positioned on an opposed side to the inner race of the constant velocity joint with respect to the stop ring is formed as an inclined surface having an acute angle with respect to a center axis extending toward a base end side from a leading end side of the inner shaft end.