Rotary switch
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United States of America Patent
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Sep 17, 2013
Grant Date -
Jan 12, 2012
app pub date -
Feb 26, 2010
filing date -
Mar 17, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A rotary switch includes a rotor that is insert molded so upper and lower contact pieces have a predetermined number of contact regions with a predetermined angular width in each of a plurality of annular zones defined by a plurality of concentric circles and are stacked in a disk part. The contact pieces are exposed in two surfaces of the disk part, an upper contactor holder and a lower contactor holder are placed to cover a lower half and an upper half of the disk part of the rotor. A plurality of elastic contacts are brought into elastic contact with lower and upper side surfaces of the disk part in a plurality of annular zones, and a rotating operation shaft is inserted through the rotor, the lower contactor holder, and the upper contactor holder, and can rotate the rotor.
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