Landing control system
AssigneeInterface Products Co., Inc.
InventorsGeorge Miller, Michael Miller
Life of this patent
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Abstract
A landing control system comprising an elongated nonmagnetic strip extending vertically along the length of the shaft, having along its length, at predetermined sites, magnetic adhesive tape containing coded information. A sensor for reading the coded information is mounted on the exterior of the elevator car grasping the nonmagnetic strip by a pair of tape guides, the guides being spaced as to permit the centrally located magnetic adhesive tape to pass freely into the sensing area without, while avoiding contact with the tape.
Claims10
In a multi-storied elevator system, wherein the cab is movable up and down along fixed rails in a vertical shaft and is capable of being selectively stopped at intermediate landings by an electrically operated control system, a landing control system comprising an elongated strip of nonmagnetic material extending substantially from the bottom of the shaft to the top thereof, secured to the face of said strip is a continuous magnet assembly having alternating poles extending the length of said strip, and a plurality of discrete magnetically encoded tapes sequentially spaced along the length of the strip, said landing control system having magnetic sensor means mounted on said elevator cab into spaced proximity with said strip to count said alternating poles and to detect and decode the magnetically encoded tapes as it moves up and down in said shaft, said sensor means providing electrical signals for said elevator control system.
In a multi-storied elevator system, wherein the cab is movable up and down along fixed rails in a vertical shaft and is capable of being selectively stopped at intermediate landings by an electrically operated control system, a landing control system comprising an elongated strip of nonmagnetic material extending substantially from the bottom of the shaft to the top thereof, secured to the face of said strip is a continuous magnet assembly having alternating poles extending the length of said strip, and a plurality of discrete magnetically encoded tapes sequentially spaced along the length of the strip, said landing control system having magnetic sensor means mounted on said elevator cab into spaced proximity with said strip to count said alternating poles and to detect and decode the magnetically encoded tapes as it moves up and down in said shaft, said sensor means providing electrical signals for said elevator control system, said removable encoded tap comprising a plastic tape on which is magnetically located encoded information adhesively attached to said strip .
Dependencies are inferred from the claim text.