Ergonomical keyboard assembly

Details Ergonomical keyboard assembly Ergonomical keyboard assembly

1999-04-16

2000-03-21

Hilten, John S.

Typewriting machines

Key-board or key lever-actuating mechanism

341 22, B41J 508

Patent

active

060394781

ABSTRACT:
An ergonomical keyboard assembly includes an upper cover, a lower base plate connected to the cover, and a unitary keyboard. The upper cover includes a hollow frame that confines an opening. The keyboard has a substrate mounted on the base plate below the cover, and a plurality of keys which are mounted on the substrate and which have key caps projecting upward and outward from the cover through the opening. The substrate has a top face which is arched and which protrudes upward. The key caps form an arched overall key surface that projects upward and outward through the opening and that is arched from two ends to an intermediate portion of the opening.

REFERENCES:
patent: 4509873 (1985-04-01), Ryan
patent: 4948228 (1990-08-01), Werner
patent: 5067834 (1991-11-01), Szmanda et al.

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