Patent ID: 6315099
Filing Date: 2001-11-13
Classification: F16D

Abstract:
A driving force transmission apparatus which has:a first rotary member and a second rotary member arranged rotatably relative to each other;a torque transmission mechanism for controlling a torque transmission between said first rotary member and said second rotary member; anda stud bolt integrally including an embedded side externally threaded portion screwed in an internally threaded portion, as formed in said first rotary member, and a nut-side externally threaded portion screwed in a nut,wherein the external diameter of said embedded side externally threaded portion and the external diameter of said nut-side threaded portion are set to be different on the basis of a shearing or bending strength of said first rotary member and a shearing or bending strength of said nut, and the smaller external diameter of the stud bolt is threaded into the one of the first rotary member and the nut having a higher shearing or bending strength.