| 摘要 |
<p>PURPOSE:To respectively rotate a rotary drum and an impeller with a simple structure by providing a motor switching shaft engaged to the rotary shaft of a motor and rotating only the rotary drum or the impeller with one motor. CONSTITUTION:At the time of recording and reproducing modes, the revolution of a motor 4 goes to the rotation of a rotary shaft 5 and a mode (motor) switching shaft 6 is rotated unitedly with the rotary shaft 5. Then, the rotation is transmitted through a key 10 to a rotary drum 1. At such a time, since the impeller 3 is fitted through a ball bearing 11 to the rotary shaft 5, the rotation is not directly transmitted. At the time of a bedewing recovering mode, the revolution of the motor 4 goes to be the rotation of the rotary shaft 5 and the mode switching shaft 6 is rotated unitedly with the rotary shaft 5. Then, the rotation is transmitted through a key 9 to the impeller 3. In such a condition, the rotation is not transmitted to the rotary drum 1. Thus, by one motor, the rotary drum and the impeller can be respectively rotated.</p> |
