Keyboard membrane keyswitch assembly

Details Keyboard membrane keyswitch assembly Keyboard membrane keyswitch assembly

1992-01-31

1993-06-01

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Membrane type

200520, 200345, 200344, H01H 110

Patent

active

052151875

ABSTRACT:
A keyboard membrane keyswitch assembly comprises a housing, a button, a compression piston and a rubber element. The housing holds the compression piston and the rubber element. The compression piston preferably has a cylindrical shape with a vertical guider along its longitudinal axis. The vertical guider is used to connect the assembly to the button. A supporting ring is linked to the vertical guider by rib elements. The rubber element is adapted to receive the supporting element of the compression piston thereby maximizing the displacement of the button and preventing the button from tilting when it is depressed.

REFERENCES:
patent: 4440992 (1984-04-01), Desmarais
patent: 4827243 (1989-05-01), Cheng
patent: 5120923 (1992-06-01), Kato et al.

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