Elevator
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United States of America Patent
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N/A
Issued Date -
Feb 12, 2004
app pub date -
Feb 6, 2003
filing date -
Aug 8, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An elevator is capable of transmitting signals between an elevator control unit and a car control unit without using tail cords. Resin-coated ropes for suspending an elevator car and a counterweight comprise conductive metal wires. Transmitter-receivers use the conductive metal wires of the ropes for contactless signal transmission. The conductive metal wires of the two ropes are connected in rope-anchoring parts to form an electrical closed loop for signal transmission.
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