| 摘要 |
<p>PURPOSE:To improve the operability and to reduce the size of the device by driving a cam which moves up and down a cassette presser, a shaft, and an L gear which has a semicircular groove part by a motor, and loading and unloading a cassette. CONSTITUTION:When a switch 26 is turned on, the motor begins to operate and an S gear 23 rotates through gear trains 57-59 to rotate the L gear 21 counterclockwise. In the rotation of the L gear 21 which starts operating up to, for example, 90 deg., the shaft 22 and groove part 16 engage with each other to move a cassette holder horizontally from a 1st position where the cassette can be inserted and extracted to above a tape travel system. In the rotation of the L gear 21 from, for example, 90 deg. to 180 deg., the shaft 22 only moves in the groove part 16 and no power is transmitted, and the cassette presser is slanted through the operation of the cam and the cassette holder is moved vertically to a 2nd position where a play state can be entered. Further, the L gear 21 is reversed to unload the cassette and the number of components is therefore decreased to reduce the size of the device.</p> |
