Door interlock device for vacuum circuit breaker
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United States of America Patent
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Jun 20, 2017
Grant Date -
May 5, 2016
app pub date -
Jun 18, 2015
filing date -
Oct 31, 2014
priority date (Note) -
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Abstract
The present invention relates to a door interlock device for a vacuum circuit breaker, and more particularly, a door interlock device for a vacuum circuit breaker, which is operable in cooperation with an operation of a cradle shutter. A door interlock device for a vacuum circuit breaker according to one embodiment disclosed herein includes a pressing unit that is provided on one end portion of a shutter lever driving a terminal shutter of a cradle, a driving force transfer unit that is rotatably or slidably installed on a cradle side frame, the driving force transfer unit performing a rotary motion or a sliding motion by a force applied from the pressing unit, and a sliding member that is configured to lock or unlock a door lock plate in response to a driving force transferred from the driving force transfer unit.
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