| 摘要 |
PROBLEM TO BE SOLVED: To improve noise reducing ability without causing vibration and noise in a fitting part. SOLUTION: An elastic ring 12 is laid in a gap at sectionally D-shaped connections between a shaft 1 and a hollow shaft 3 in an elastically contacting condition, so that an extended arm 12b can be put in contact with the flat peripheral face 11 of a center hole 3a in the hollow shaft 3, a semicircular protrusion 12d is put in contact, with the inside end 11a of the flat peripheral face 11 and a collar 12a is put at its inside in contact with the outside of the hollow shaft 3. In this way, the shaft 1 and the hollow shaft 3 are connected at their connections to each other with no gap to prevent the looseness in the axial and radial directions. Noise and vibration due to contact at the connections during drive are reduced. |
