| 摘要 |
PURPOSE:To obtain a vibration detecting device which is small-sized, light weight and inexpensive by combining a suspending body suspended and held by a magnetic force, and an electric circuit switch. CONSTITUTION:A titled device is formed by a suspending body 2 consisting of a magnetic material or a magnet and a composite material containing them, a suspending and holding body 1 for suspending and holding the suspending body 2, and an electric circuit switch 7 operated by the suspending body 2 which is dropped by vibration. Aslo, the suspending body 2 is held by the holding body 1 by a magnetic force of the holding body 1 or the suspending body 2, and also the suspending body 2 can be dropped by vibration whose strength is beyond a prescribed value. Subsequently, when the suspending body 2 drops, the switch 7 is operated. Accordingly, a buzzer can be sounded by incorporating a buzzer circuit in the switch 7. By forming in this way, a vibration detecting device which is small-sized, lightweight an inexpensive can be obtained. |
