| 摘要 |
<p>A multistage transmission includes a lost motion mechanism (52, 53, 152, 153) for regulating the operation for a downward shift in acceleration and for an upward shift in deceleration. Regulating rods (E, F) are integrally moved with a control rod (51, 151, 181). A cutout into which a pin can be fitted together with a cam groove of the slidingly touched cam rod (Cao, Cae, Cbo, Cbe) is formed corresponding to each cam groove in the regulating rods (E, F). The cutout of the regulating rods (E, F) corresponding to the cam groove of the cam rod (Cao, Cae) for normal rotation is formed longer than the corresponding cam groove on the reverse side to a moving direction of the control rod in an upward shift in a state in which shifted speed is established. The cutout of the regulating rods (E, F) corresponding to the cam groove of the cam rod (Cbo, Cbe) for reverse rotation is formed longer than the corresponding cam groove on the reverse side to a moving direction.</p> |
