Wrist support for expandable keyboards

Details Wrist support for expandable keyboards Wrist support for expandable keyboards

1996-01-11

1996-12-31

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

361680, B41J 510

Patent

active

055887597

ABSTRACT:
An expandable keyboard with three degrees of freedom in the translation assembly which allows the lower keyboard section to move: forward, the second degree of freedom; up, the third degree of freedom; and out, the first degree of freedom, to expand the keyboard. In the collapsed position, the lower keyboard section rests below a fixed wrist support which forms a portion of the housing for the device.

REFERENCES:
patent: D314205 (1991-01-01), Lang et al.
patent: 5044798 (1991-09-01), Roylance et al.
patent: 5141343 (1992-08-01), Roylance et al.
patent: 5163765 (1992-11-01), Levy
patent: 5187644 (1993-02-01), Crisan
patent: 5267127 (1993-11-01), Pollitt
patent: 5519569 (1996-05-01), Sellers
patent: 5519570 (1996-05-01), Chung

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