Push button switches having contact structures to avoid detent a

Details Push button switches having contact structures to avoid detent a Push button switches having contact structures to avoid detent a

1982-09-23

1983-10-25

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Reciprocating contact

H01H 1500

Patent

active

044121091

ABSTRACT:
A switch is disclosed having improved contact structure to avoid any detent action between the movable and fixed contact elements, and to afford an enhanced break-before-make action. The switch includes a contactor having a cylindrically curved rider which is slidable across a gap between first and second coplanar contact plates. One plate has a projection or finger, extending across the gap for smoothly carrying the rider across the gap while avoiding any detent action. The other plate has a notch therein opposite the projection for maintaining spacing between the projection and the other plate. The projection and the notch are generally centered relative to the width of the rider. In another aspect, the contactor is movable alternatively into bridging relationship between a second contact plate and first and third contact plates, and the contactor has a pair of cylindrically rounded riders which are slidable along the plates. The second plate has a longitudinal rib projecting therefrom which tilts the contactor to enhance the break action, when the riders break contact with the first and third plates.

REFERENCES:
patent: 2303693 (1942-12-01), Hill
patent: 3223794 (1965-12-01), Hoy et al.
patent: 3934101 (1976-01-01), Jones
patent: 4054761 (1977-10-01), Raab et al.
patent: 4251698 (1981-02-01), Raab et al.

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