JOINT MEMBER FOR POWER TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To solve the problem of a conventional joint member that a gouged phenomenon caused by the top of a serration projection may be generated on the inner peripheral surface of an inner peripheral layer.

SOLUTION: This joint member for a power transmission device comprises a cylindrical shaft element made of a fiber reinforced resinous material, and a joint member having a fitting portion pressed and fitted to one end of the cylindrical shaft element from a tip end side at one end side. A serration 17 engaged with the inner peripheral surface of the cylindrical shaft element is formed on the outer peripheral surface of the fitting portion 15 in an axial direction. A guide surface 19 formed at the tip end of the fitting portion so as to continue to the serration comprises a guide 20 having an outer diameter smaller than one end inner diameter of the cylindrical shaft element in the tip end side, and a cutting portion 21 continuously formed to the serration between the guide and the fitting portion outer peripheral surface. A taper angle θ2 is set to be smaller than the taper angle θ1 of the guide.

COPYRIGHT: (C)2004,JPO