| 摘要 |
<p>A detector of foreign objects, and particularly fingers, between the doors and the contiguous walls of landing and car openings in an elevator with glass car and landing doors includes a light beam emitter and a receiver. The emitter, which is located near an opening frame edge of the car, emits a light beam that extends transversally across the car and landing glass doors from the vertical car opening frame edge to the opposite vertical landing frame edge. The receiver, which receives the emitted light beam, is adapted to detect any obstacle to the light beam and to order the simultaneous halt and reversal, as required, of the car and landing doors.</p> |
