Foot switches

Details Foot switches Foot switches

1997-10-14

2000-05-16

Gellner, Michael L.

Electricity: circuit makers and breakers

Foot operated

200 865, H01H 314

Patent

active

060640154

ABSTRACT:
A foot switch which comprises a housing member defining a hollow cavity bounded by front, back and side walls with a pair of spaced apart rib members within the housing spaced intermediate the side walls. Journaled between each side wall and a rib are generally U-shaped members having a first treadle and a second operating arm. The second arms are journaled in the housing and one of the ribs and the first treadle arms are accessible without the housing and adapted to rotate the first arms upon application of pressure. A torsion spring is positioned about each of the second arms between a side wall and a rib and arranged to bias the second arms into a predetermined position. At least one switch having an actuating arm is secured in the housing member. Switch arm actuating members are also secured within within the housing to act on the switch arms and are actuated by the second arms of the U-shaped members when the first arms are depressed under foot pressure. When depressed, the first arms rotate the second arms against the bias of the torsion springs to actuate the switch actuating arms through the switch actuating members.

REFERENCES:
patent: 3759115 (1973-09-01), Dibonaventura et al.
patent: 3916722 (1975-11-01), Grobe
patent: 4354071 (1982-10-01), Pietschmann
patent: 5083069 (1992-01-01), Jimenez et al.

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