| 摘要 |
PROBLEM TO BE SOLVED: To provide a propeller unit which can reduce effectively the shock and sound which occur at the time of the shift in and the shift out of a dog clutch.SOLUTION: As a damper arranged between the outer periphery 41a of a bushing 40 and the inner periphery of an inside hub 20 in a propeller unit, what has a first portion D1 engaged with the rib 43 of the bushing, a second portion D2 engaged with the rib 22 of the inside hub, and a connection part b which connects the first portion and the second portion is used. In a state where torque is not given between the bushing and the inside hub, the damper is specified to have a cross-sectional shape which has deformation absorption spaces S1 and S2 located between the first portion and the second portion. In a state where torque is given between the bushing and the inside hub and the rib of the bushing and the rib of the inner side hub shift relatively in a peripheral direction, the deformation absorption spaces change such that the first portion approaches the second portion. |
