Magnetic door locking system

摘要

In a magnetic locking system for locking a door to a fixed member, comprising a key cylinder connected to the door, a magnetic sensor connected to the door near the key and operating when sensing a predetermined magnetic force, control means for locking the door to the fixed member when the magnetic sensor operates, and a magnet-mounted key including a key cylinder proper which is to be engaged with the key cylinder and a key head which is equipped with an elongate magnet piece, there is proposed an arrangement in which when the key is operatively engaged with the key cylinder to turn same, an imaginary plane which the axis of the magnet piece describes when the key turns about the axis of the key cylinder intersects the axis of the magnetic sensor.