Exit device with over-travel mechanism
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United States of America Patent
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Feb 21, 2023
Grant Date -
May 9, 2019
app pub date -
Jan 8, 2019
filing date -
Dec 30, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An over-travel mechanism configured to couple an input shaft and an output shaft in an exit device assembly. The input is connected to an actuator that linearly displaces the input shaft, and the output shaft is connected to a locking member of the exit device. The over-travel mechanism includes a link coupled to the output shaft, and a preloaded elastic member transmits force between the input shaft and the link. Movement of the input shaft from a first input shaft position to a second input shaft position causes the elastic member to urge the link from a first link position toward a second link position. Movement of the input shaft from the second input shaft position to a third input shaft position causes the elastic member to elastic member to elastically deform without moving the link from the second link position.
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