Device for detecting position of an elevator car with mechanical switching means
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United States of America Patent
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Aug 1, 2017
Issued Date -
N/A
app pub date -
Oct 18, 2012
filing date -
Oct 18, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A device for detecting the position of an elevator car (40) by a sensor and evaluation unit (20, 22, 24), accommodated in a sensor housing (10), which can be arranged on the elevator car, is designed for interaction with a strip (14) having a length and/or position coding and which is connected via a cable connection (26) to a switching unit that is accommodated separately from the sensor housing in a switching housing (12). The switching unit has a safety switch (30) and/or an interrupter contact for an emergency function, especially an emergency stop, of the elevator car. A switching device is associated with the position detecting device for inputting and storing a speed threshold value, the safety switch or interrupter contact being activated when said threshold value is reached or exceeded.
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