Foldable handrail and safety switch arrangement on top of an elevator car
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United States of America Patent
Stats
-
Feb 5, 2013
Grant Date -
Jul 12, 2012
app pub date -
Mar 19, 2012
filing date -
Jun 30, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An elevator car includes a foldable handrail mounted on top of the car. Safety switches are associated with the foldable handrail including a first safety switch and a second safety switch. The first safety switch is closed only when the handrail is folded in a fully retracted position. The second safety switch is closed when the handrail is unfolded in a fully deployed position. A safety chain is associated with the first and second safety switches for supplying power to an elevator drive system in a normal operation or an inspection operation depending on the state of the first and second safety switches.
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