Structure of key switch

Details Structure of key switch Structure of key switch

1991-10-08

1994-05-10

Recla, Henry J.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200513, 200515, 200534, H01H 1370

Patent

active

053109732

ABSTRACT:
A key switch includes a switching member supported on a resilient member and connected to a key cap and driven by it to slide in a locating member. The switching member has two opposite, curved side plates caused to slide in the locating member along two opposite sliding ways. The elastic member has a plurality of small raised portions supported on the PC board, a plurality of spaced ribs on the inner wall surface to reinforce the structure and the elastic resilient property thereof, and a plurality of notches between the raised portions for exhaust of air squeezed by the circular flange of said switching member.

REFERENCES:
patent: 1154055 (1915-09-01), Reeves
patent: 2203185 (1970-06-01), Walus
patent: 3829646 (1974-08-01), Lorteije et al.
patent: 4418257 (1983-11-01), Muller et al.
patent: 4453061 (1984-06-01), Tamura
Maxi-Switch Co. Feb. 24, 1982, (Electronics Magazine).

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