| 摘要 |
PROBLEM TO BE SOLVED: To prevent a door in closing action from colliding with a moving body stationary in an optional position between the closed position and open position of the door and to allow the door to continue its closing action into the closed position. SOLUTION: An auxiliary detecting means 21 for detecting a moving body stationary on a door opening/closing action line is provided with first to eighth detecting elements, and the first to eighth detection ranges are in continuous form in a door opening/closing direction between a closed position and an open position. A detection signal of each detecting element is inputted to a controller to inhibit the rotation of a motor to thereby impede the closing action of a door 10 so that the door 10 is not put in closing action when the moving body is stationary in an optional position between the closed position and open position. A detection signal of the detecting element in the detection range at which the door 10 arrives in its closing action is invalidated to alow the door 10 to continue its closing action into the closed position.
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