Keyboard switch

Details Keyboard switch Keyboard switch

1989-04-07

1990-08-28

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Membrane type

200341, 200345, 200520, 200532, H01H 110

Patent

active

049527622

ABSTRACT:
A keyboard switch capable of minimizing the number of parts to reduce manufacturing costs and giving an operator a light touch during its operation. The keyboard switch includes an actuator arranged in a frame for pressing a membrane switch. The actuator includes a key stem, a pressing member for forcedly pressing the membrane switch, a pair of leaf springs for forcedly pushing up the key stem. The key stem, pressing member and leaf spring means are integrally formed and joined together by a base member.

REFERENCES:
patent: 3909564 (1975-09-01), Scheingold et al.
patent: 4341934 (1982-07-01), Muller
patent: 4463237 (1984-07-01), Kim
patent: 4492838 (1985-01-01), Fukukura
patent: 4496803 (1985-01-01), Smith
patent: 4529849 (1985-07-01), Kamei et al.

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