Cam-type snap-action actuating mechanism for a switch

Details Cam-type snap-action actuating mechanism for a switch Cam-type snap-action actuating mechanism for a switch

H - Electricity

01

H

306/299

H01H 3/42 (2006.01) H01H 43/02 (2006.01)

Patent

CA 1103291

"SNAP-ACTION CAMMING MEANS" ABSTRACT OF THE DISCLOSURE A snap-action camming means for use in controlling a double throw electrical switch. The switch may be biased to a first condition and substantially instantaneously thrown to a second operating condition by a spring associated with the cam. A single cam and cam follower are utilized to provide substantially positive throwing of the switch in both directions so as to avoid a dead break condition wherein the switch is maintained in an intermediate position between the two operat- ing conditions. In one embodiment, the spring is formed integrally with the cam. The spring may be arranged to position the cam follower suitably to be maintained by subsequent engagement thereby with a portion of the cam.

300919

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