| 摘要 |
A hybrid bicycle is provided which is manually propelled, but may include a motor unit for assisting forward propulsion of the bicycle. The bicycle has a control system for providing a control input for another component of the bicycle. Where that component comprises the motor, the control input is for increasing drive power applied by the motor unit to said bicycle. Where the component is a continuously variable transmission (CVT) for the bicycle, the control input is for continuously varying the gearing ratio of the CVT. Located adjacent a drive sprocket is a moveable plate member. The plate member and the drive sprocket are mounted for rotation about an axis of rotation of a pedal spindle, although the sprocket is not fixed for rotation with the pedal spindle. The drive sprocket is loosely coupled to the plate member with the plate member being moveable relative to the sprocket by a limited distance in a rotational direction. The plate member acts on a lever mechanism when it is moved relative to said drive sprocket such that any movement of the plate member results in an axial movement of an actuator member which triggers the control system to generate the control input in response to the amount of any movement of the plate member relative to the sprocket.
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