Mechanically lockable hand switch
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United States of America Patent
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May 16, 2017
Issued Date -
N/A
app pub date -
Oct 10, 2012
filing date -
Oct 13, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A switch for controlling a control circuit or an operating current of electric-motors in linear gear drives includes: a switch casing, having at least an upper part including keys, and a lower part for forming a receiving space; a circuit board incorporated in the receiving space with microswitches including a switch casing and a spring-biased push-rod therein; wherein, when the keys are actuated by a user, the push rod actuates the micro-switch to control a control circuit or operating current, and wherein the switch contains at least one locking element, transferable between a locking position, which locks the keys, and a release position, which releases the keys. To prevent damage to a switch from pressure forces during actuation, the locking device is formed such that the pressure applied to the key is transferred onto the switch casing and/or the circuit board plate over as wide an area as possible.
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