Adjustable keyboard

Details Adjustable keyboard Adjustable keyboard

1983-12-15

1986-07-01

Pearson, Charles A.

Typewriting machines

Key-board or key lever-actuating mechanism

Key-board including row of keys having different heights

400489, 400492, 200331, 200340, B41J 510, B41J 512

Patent

active

045976813

ABSTRACT:
An adjustable keyboard for typewriters, computers, and similar machines, is divided laterally into first and second sets of keys, with each set being adjustable about each of two mutually angulated axes so as to change the planes of the sets relative to each other and relative to the support, and also to allow each set to be angularly shifted in its own plane. The keys of each set are mounted for individual adjustment angularly, laterally, and in height. This allows the overall configuration of each set of keys to be individually adjusted for the convenience, physical, and operating characteristics of the arms, hands, and fingers of each operator.

REFERENCES:
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patent: 1138474 (1915-05-01), Heidner
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patent: 3667787 (1972-06-01), Semour
patent: 3830352 (1974-08-01), Kolpek
patent: 3902034 (1975-08-01), Isozaki
patent: 3940758 (1976-02-01), Margolin
patent: 3990565 (1976-11-01), Felton et al.
patent: 4294555 (1981-10-01), Galaske et al.
patent: 4378553 (1983-03-01), McCall
patent: 4509873 (1985-04-01), Ryan

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