| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an obstacle sensor capable of being realized with a simple construction and increasing reliability as an obstacle sensor with excellent waterproof efficiency. SOLUTION: A frame body 2 having a groove opening by opening to the whole line lengthwise in the direction of the width of a building opening and a sensitive piece main body 11 for closing the groove opening 6 of the frame body 2 are provided to the end opposed to the edge of the building opening in a slat curtain 33 provided to the building opening and, at the same time, an obstacle sensor is equipped with a sensitive piece 10 provided to the frame body 2 movably forward and backward and a detection device 19 for detecting the sensitive piece 10 going in the frame body 2 in a state of non-contact. The detection device 19 is constituted of a detection section 20 of a magnetic sensor provided to the outside of the frame body 2 and a detection body 21 of a magnetic substance provided to part of the sensitive piece 10 positioned in the frame body 2, an outside plate 3 of the frame body 2 is provided between the detection section and detection body 21, and the detection section 20 and detection body 21 are opposed to each other.</p> |
