| 摘要 |
PROBLEM TO BE SOLVED: To allow easy application to a clutch mechanism, if not present. SOLUTION: In a structure of the power transmitting mechanism for an outboard engine to transmit the rotating force of a crank shaft 23 of an engine to a drive shaft 5 accepted in an extension case 6, a disc member 24 having plural screw holes at places of equally dividing a circumference is fixed to the axial end of the crank shaft 23 and a housing member to support the axial end of the drive shaft 5 is fixed to the end face of a crank case 21 in the direction of the crank shaft so that a centrifugal clutch mechanism formed with a clutch shoe 26 pivotally supported on a pin threaded to a screw hole in the disc member 24 and a clutch drum 28 joined to the axial end of the drive shaft 5 via a spline means can be substantially equal in axial dimension to a direct coupling formed with a plate having a bolt hole corresponding to the screw hole in the disc member 24 and a shaft joined to an outer spline 31 at the axial end of the drive shaft 5. In this way, the housing member, the extension case 6 and the drive shaft 5 are made in common to allow the direct coupling to be mounted thereon by using the screw hole into which the pivotal pin of the clutch shoe 26 is threadably attached. |
