Snap-action device for cooperating with toothed wheels or the li

Details Snap-action device for cooperating with toothed wheels or the li Snap-action device for cooperating with toothed wheels or the li

1992-06-30

1994-05-10

Luebke, Renee S.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200565, 74527, H01H 38

Patent

active

053109724

ABSTRACT:
A snap-action device, for use in electrical switches, which includes at least one toothed wheel, a switch having a base with a shoulder guide and a cylindrical wall for supporting the toothed wheel, with an inclined portion at opposite ends thereof, at least one spring, and a pawl having a pawl base and side walls with at least one surface inclined along the pawl base. The pawl is slidably attached to the shoulder guide and connected to the switch by snapping steps on the pawl onto corresponding counter-steps on the switch to prevent accidental separation of the pawl from the switch. At least one tang is arranged with the surface of the side walls and the portions of the cylindrical wall to define a cavity wherein the spring is inserted and pre-loaded.

REFERENCES:
patent: 3430514 (1969-03-01), Speelman
patent: 4511770 (1985-04-01), Hayashida
patent: 5009120 (1991-04-01), Iseler et al.
patent: 5055644 (1991-10-01), Alsch

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