G - Physics – 04 – C
Patent
G - Physics
04
C
58/0.2
G04C 3/00 (2006.01) H01H 25/06 (2006.01)
Patent
CA 1073684
DUAL FUNCTION PUSHER AND ROTATE SWITCH FOR SOLID STATE DIGITAL WATCHES Abstract A dual function pusher and rotate switch assembly for actuating, for example, a display light and/or time correction which includes a crown portion on the outside of the watch case and a shaft portion extending through the wall of the case. The shaft portion includes an intermediate section on the inside of the case which cooperates with a spring to provide a two position rotary detent action. In addition to permitting detent holding of the stem in the proper contact position, the spring arrangement also provides electrical contact to ground the stem to the case and to return the crown to the normally outward position after release of the crown from a depressed position. The internal end of the shaft includes an eccentric tab which contacts a precisely posi- tioned first switch blade when the stem being in a first detent position is pushed-in or contacts a second switch blade if the crown is rotated to a second detent position. If the crown is pushed-in while in the second detent position, both switch blades are engaged causing actuation of two functions such as causing simultaneous illumination and updating of the display. A sealing element or gasket is held in an annular groove formed in the shaft which contacts the internal surface of the case to provide for a water resistant construction.
259197
Mascia Frank P.
Wuthrich Paul
LandOfFree
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