| 摘要 |
PURPOSE:To perform a quick switching operation by forming a jumping path connecting the first and third positions on the cam groove of a shift drum and pressing a shift fork with a spring in the direction of an engaging clutch connected at the second position. CONSTITUTION:Shift forks 88, 90 are coupled with cam grooves 80, 82 formed on the outer periphery of a shift drum 84 at one end and are coupled with sliders 44, 46 of engaging clutches A, B, C at the other end, and the shift fork 90 is pressed to the clutch B side by a compression coil spring 92. The clutches B, C are disengaged at the H position by the cam groove 82, and the clutch B is engaged and the clutch C is disengaged at the L position by the shift fork 90. A jumping path disengaging the clutch B and engaging the clutch C at the R position, bypassing the L position, and connecting the H position and R position is formed. Accordingly, the high switching between the first and third positions is allowed, and a quick switching operation can be performed. |
