Knee-operated switch for a working machine, especially a sewing

Details Knee-operated switch for a working machine, especially a sewing Knee-operated switch for a working machine, especially a sewing

1998-01-05

1999-08-17

Gellner, Michael L.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

200512, 200293, 1122173, H01H 316

Patent

active

059396873

ABSTRACT:
A knee-operated switch for a working machine, the switch including a carrier supported to the machine and a profile extending off the carrier at an angle to the profile. The profile includes first and second elongate, parallel electric contact strips that are normally separated. Sheathing over at least one of the strips is deflectable to in turn deflect the contact strips into engagement. Support strips support the contact strips normally apart until the contact strips are deflected together. A flexible elastic housing over the sheathing and the strips is deflectable to deflect the sheathing to move the contact strips together. The switch profile extends over a length so that actuation can take place at different actuating points along the profile.

REFERENCES:
patent: 3812313 (1974-05-01), Wolf et al.
patent: 3818162 (1974-06-01), Monroe et al.

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