Tandem insert molded electrical controls and process for produci

Details Tandem insert molded electrical controls and process for produci Tandem insert molded electrical controls and process for produci

1980-06-11

1981-10-27

Albritton, C. L.

Electrical resistors

Mechanically variable

With switch

338128, 338134, 338184, 338199, H01C 1050

Patent

active

042976715

ABSTRACT:
A process utilizing tandem insert molded controls for effecting a plurality of electrical control functions. A power switch, variable resistance control, and momentary switch are each contained within insert molded housings or bases which are mounted one against the other in a linearly aligned relationship. The alignment is maintained by an impact system consisting of a metallic front plate having side straps with end fingers curled over to secure the confronting edges of a heat-treated back plate, the front plate/side straps/back plate construction capturing and maintaining alignment of the controls for mounting on a panel board. A plurality of the controls are individually operated by two relatively rotatably and relatively axially movable shafts which independently actuate the respective controls. The shafts each have an annular rotor mounted on an end thereof, the rotor containing a cam lobe on one face and on the oppositely disposed face resiliently bent collector arms and a resilient arm. Rotation of each shaft effects actuation of the associated power switch and rotary movement of the collector arms and the resilient arms which wipably engage a collector and a resistance element, respectively, of the associated variable resistance control component. Axial movement of one of the shafts accomplishes actuation of the momentary switch.

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