Keybutton guide assembly for a keyboard

Details Keybutton guide assembly for a keyboard Keybutton guide assembly for a keyboard

1988-06-17

1989-08-08

Luebke, Renee S.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200 5A, 400496, H01H 1370

Patent

active

048555487

ABSTRACT:
A keybutton guide assembly for a full sized keyboard with full travel keybuttons has a structure including a keybutton having a spring actuator engaging a spring finger at a location spaced away from a keybutton stem. This structure causes the keybutton stem to be guided only at an upper end of a stem guide boss for controlling the movement of a keybutton between rest and depressed positions with minimum rubbing friction.

REFERENCES:
patent: 3826882 (1974-07-01), Giollitti et al.
patent: 3879602 (1975-04-01), Walker
patent: 4188137 (1980-02-01), Dannatt
patent: 4269521 (1981-05-01), Longrod
patent: 4315114 (1982-02-01), Monti, Jr.
patent: 4440515 (1984-04-01), Nassimbene
patent: 4450332 (1984-05-01), Stamm et al.
patent: 4467150 (1984-08-01), Leitermann et al.
patent: 4468542 (1984-08-01), Pounds

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