| 摘要 |
<p>PURPOSE:To prevent malfunction by providing a tongue piece to be abutted on the inner surface of a switch operating member when a movable plate is moved from a second position to a first position and to be slide-contacted to the inner surface of the operating member until an operating part piece is switched from a forth operating condition to a back operating condition. CONSTITUTION:When an eject lever is erroneously operated until a switch is turned off, a head plate 40 is moved back from a play position to a non-play position and since it is moved to the play position again, a movable plate 50 is also moved from the first position to the second position and after that, it is restored to the first position again. A tongue piece 50' of the movable plate 50 is separated from a pressure-welding condition with a switch operating member 28 and the member 28 is restored by restoring force. Then, the movable plate 50 is restored to the first position and the tongue piece 50' is abutted on the inside surface of the member 28. Accordingly, even when an operating part piece 47 execute the forth motion, the tongue piece 50' is only slide- contacted to the inside surface of the member 28 and the switch is not turned off. Thus, the malfunction is prevented.</p> |
