| 摘要 |
<p>PURPOSE:To ensure a smooth and assured shift of a drive pulley between the play and stop positions, by controlling both the play and stop positions of a working plate interlocking a magnetic heat, etc. by means of a drive pulley having two intermittent parts and controlling the drive of the pulley with two control buttons. CONSTITUTION:When a play button 19 is pushed, a switch 18 provided to a working plate 1 works. Thus a control lever 9 turns counterclockwise by a solenoid 12, and then a hooking hollow part 7e of a drive pulley 7 and an end 9a of the lever 9 is released. As a result, the pulley 7 is turned counterclockwise by a trigger spring 13. Then a gear 6 of a capstan 5 engaged a gear part 7c to turn the pulley 7 clockwise, and a cam part 7d moves the plate 1 toward an arrow A'. Thus the edge 9a is hooked to another hooking hollow part 7f of the pulley 7, and at the same time the capstan 5 engaged the other intermittent part 7b to secure the reproduction mode. Then the switch 18 moves to a position where it can be actuated with a stop button 20. In such a way, a smooth and assured shift is ensured for the pulley 7 between the play and stop positions.</p> |
