| 摘要 |
The purpose of the present invention is to provide an elevator door control device that can detect if a door panel is in a fully open position or a fully closed position using a single optical axis by way of a position switch disposed in one location. To this end, the device comprises: a travel distance detection means for detecting the distance traveled in the direction of opening and closing of the door panel (10); a position switch (50) for detecting when the door panel is both in a fully open position and in a fully closed position; and a first shielding plate (30) and a second shielding plate (40) provided in the door panel. The position switch comprises a light projector (51) and a light receiver (52). A light blocking portion (31) with first dimensions and a slit portion (32) with second dimensions are formed on the first shielding plate. The second shielding plate has third dimensions that are larger than the first dimensions. In addition, a detection means detects both the fully open position and the fully closed position on the basis of the travel distance detected by the travel distance detection means and the light receiving state of the light receiver. |
