Keyboard

Details Keyboard Keyboard

1991-07-15

1992-07-14

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

Key-board including keys grouped to facilitate positioning...

400486, B41J 510

Patent

active

051297477

ABSTRACT:
Alphanumeric keyboard input apparatus has a mount and a plurality of keys on the mount arranged in four V-shaped rows, the four rows nested together, one within the other, so as generally to form a chevron. Alphanumeric indicia on the keys are arranged in QWERTY typing layout. At least two keys have base perimeters forming chevrons, one in a first row of the four rows and one in a second row of the four rows. Four keys of the first plurality have base perimeters forming irregular trapezoids, two in a third row of the four rows and two in a fourth row of the four rows.

REFERENCES:
patent: 4804279 (1989-02-01), Berkelmans et al.

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