| 摘要 |
PURPOSE:To prevent damage and generation of noise of spring bearing seat at the time of fluctuation of transmitted torque by pressing a pair of spring bearing seats supporting springs between a circular arc face of a notch of a first hub and that of a notch of a second hub flange. CONSTITUTION:A first hub 1 is provided with a flange 3 having notches 4 at a distance of 180 deg. in the joint circumferential direction on the tip of a cylinder 2. The flange 3 is made to be two projections projecting in the outer diameter direction for notches 4, and both the sides of the notch 4 are made to be circular arc faces 5. A flange 9 provided on the tip of a cylinder 8 of a second hub 7 is provided with two notches 10 at a distance of 180 deg. in the joint circumferential direction, and both the sides of the notch 10 are made to be circular arc faces 11. Spring bearing seats 23 supporting coil springs 31 therebetween have semi-cylindrical faces contacting circular arc faces 5, 10 of notches 4, 10. |
