| 摘要 |
In a shifting device, wherein a shifting operation is effected by the engagement of a guide pin with a cam groove, which is delineated by a control face for guiding the guide pin, and a back-up face serving no guide pin guidance function. The guide pin is so constructed as to be normally maintained in engagement with the control face of the cam groove, so as to be shifted by engagement with the control face of the cam groove during the normal shifting operation. In the event that an undesired shock is imparted to the shifting device, the guide pin is adapted to impinge on the back-up face of the cam groove, rather than on the control face thereof, so that the engagement between the guide pin and the control face of the cam groove is maintained in an optimum condition, without being damaged due to such a shock, thus ensuring an accurate shifting operation of the shifting device.
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