| 摘要 |
<p>A landing door device of an elevator comprises landing doors (2a and 2b) which open and close an elevator waiting hall (H) by moving along a horizontally-erected door lifting track (14). A plurality of rollers (15a, 15b, 16a and 16b) are arranged on the upper portions of the landing doors (2a and 2b). The rollers (15a, 15b, 16a and 16b) are hung on the upper surface of the door lifting track (14) in a free-rotating mode. Accordingly, the landing doors (2a and 2b) are hung on the door lifting track (14). A concave part (30) is arranged on the upper surface of the door lifting track (14). The concave part (30) is arranged at the position closest to a closing position (P) and corresponding to the rollers (15a and 16a) when the landing doors (2a and 2b) reaches the closing position (P) where a riding-dropping opening is completely closed.</p> |
