Keyboard with improved key design permitting tilting about eithe

Details Keyboard with improved key design permitting tilting about eithe Keyboard with improved key design permitting tilting about eithe

1983-03-07

1985-01-15

Shepperd, John W.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200159B, H01H 1314

Patent

active

044939590

ABSTRACT:
In a keyboard comprising keys (1) arranged in recesses of a supporting pl (2) and electric contacts of a contact plate (6) disposed below the keys (1) a tilting axis is provided between the key (1) and the supporting plate (2). In order to ensure symmetrical switching behavior a tilting axis is provided on both sides of the key (1). The tilting axes are formed by corners (4, 5) which are abutted at an obtuse angle (W2) by the key (1).

REFERENCES:
patent: 3860771 (1975-01-01), Lynn et al.
patent: 4255635 (1981-03-01), Campbell et al.

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