摘要 |
The invention relates to a device for the detection of foreign objects, and particularly fingers ( 13 ), between the doors and the contiguous walls of landing and car openings in an elevator with glass car ( 3 ) and landing ( 5 ) doors, characterized in that it comprises a means ( 17 ) to deliver a curtain-shaped light beam, located near an opening frame edge ( 11 ) of the car, which beam extends transversally across said car ( 3 ) and landing ( 5 ) glass doors from the vertical car opening frame edge ( 11 ) to the opposite vertical landing frame edge ( 15 ) and across all of their respective lengths or heights, and a means ( 23 ) to receive the emitted light beam and adapted to detect any obstacle to said transverse light 'beam and to order the simultaneous halt and reversal, as required, of car ( 3 ) and landing ( 5 ) door displacement at said elevator landing level, wherein the detection device is actuated by a car and landing door opening command at a determined storey in the building.
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