Electricity: circuit makers and breakers – Solid contact – Rocking actuator
Patent
1990-11-26
1992-01-07
Recla, Henry J.
Electricity: circuit makers and breakers
Solid contact
Rocking actuator
200339, 200558, H01H 2124
Patent
active
050793950
ABSTRACT:
An actuator plate type electrical switch employs an actuating mechanism which includes an overcentering cam, sleeve, actuator plate, plunger, and biasing spring. The cam is rotatable between first and second overcentered positions and has an actuating lobe aligned with a contact assembly causing the assembly to assume respective contact and non-contact positions upon rotation of the cam to corresponding first and second overcentered positions. The sleeve has a central passage and a transverse slot communicating with the passage. The cam is received through the transverse slot. The sleeve also mounts the actuator plate outwardly from the cam. The sleeve and actuator plate are pivotal together about an axis which extends parallel to the cam rotational axis. The plunger, biased by the spring toward and into continuous engagement with the center of the cam, is slidably mounted in the sleeve passage for reciprocal movement toward and away from the cam. The center of the cam is aligned with the center of the actuator plate so as to define portions of the plate which extend in opposite directions from its center and from the cam. The plunger by being biased toward the cam and actuator plate imposes a force on the cam which urges the cam to rotate toward and remain at one or the other of the first or second overcentered positions in response to manually pressing on one or the other of the opposite portions of the actuator plate.
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Barnard David A.
Murphy Glenn L.
'Hubbell Incorporated
Barrett Glenn T.
Mich, Jr. A.
Recla Henry J.
Swartz M. R.
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