| 摘要 |
<p>A mode selector mechanism for use in a cassette tape recorder, for example, includes a mode selector lever, a cam gear, an operating mechanism, a motor, a selecting mechanism, and a tape transport assembly. The tape transport assembly transports the cassette tape in a selected one of at least three operating modes including a forward playback mode, a fast-forward mode, and a rewinding mode. The mode selector lever is stopped in a position corresponding to the selected operating mode. The cam gear moves the mode selector lever in a direction to the position corresponding to the selected operating mode. The operating mechanism is angularly movable in response to movement of the mode selector lever, for switching between different force transmitting paths of the tape transport assembly depending on the selected operating mode, and preventing the mode selector lever from moving in directions perpendicular to the direction in which the mode selector lever moves. The selecting mechanism selectively supplies the drive forces from the motor to the cam gear and the tape transport assembly depending on the direction in which the motor rotates. The selecting mechanism engages the cam gear in response to rotation of the motor in a first direction when one of the operating modes is selected, thereby to move the mode selector lever to the position corresponding to the selected one of the operating modes to cause the operating mechanism to select one of the different force transmitting paths which corresponds to the selected one of the operating modes. The selecting mechanism subsequently engages the tape transport assembly to supply the drive forces to the tape transport assembly in response to rotation of the motor in a second direction after the one of the different force transmitting paths has been selected. <IMAGE></p> |
