Switching device with a switching shaft for mounting a rotary contact link and multipole switching device arrangement
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United States of America Patent
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Dec 6, 2011
Grant Date -
Mar 5, 2009
app pub date -
Aug 20, 2008
filing date -
Aug 21, 2007
priority date (Note) -
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Abstract
A switching device, in particular a circuit breaker, is disclosed including a switching shaft for mounting a rotary contact link. According to at least one embodiment of the invention, the rotary contact link has at least one groove-shaped longitudinal cutout, arranged within and along the transversely running cutout in relation to the switching shaft. Two grooves, which are arranged radially opposite one another, with in each case a bend or arcuate profile are provided in the cutout of the switching shaft, the respective two ends of the grooves being positioned radially further outward than the respective central region thereof. In each case one groove is connected to the at least one groove-shaped longitudinal cutout via a transverse bolt guided there between. At least one prestressed spring element is provided which pushes the respective transverse bolt radially outward.
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