Suspended shutter locking/unlocking device for swimming pool cover, has gear motor driving cam plate that when moves locking key/when away from key, indicates that device is in locked/unlocked position by proximity effect sensors

摘要

The device has a gear motor (1) driving a cam plate (2) that moves a locking key (3). An inverse cam is locked when the plate moves the key towards right to indicate by a proximity effect sensor (5) that the device is in a locked position. The key is pushed towards left by a spring (4) and liberates the inverse cam when the plate is away from the key to indicate by a proximity effect sensor (7) that the device is in liberated position.