Keyboards with retractable keys

Details Keyboards with retractable keys Keyboards with retractable keys

1998-08-05

2000-02-01

Yan, Ren

Typewriting machines

Key-board or key lever-actuating mechanism

Key-cap or key-stem structure

400490, 4004951, B41J 508

Patent

active

060195304

ABSTRACT:
The invention is directed to a keyboard where the keys are raised up from a retracted position upon the initialization of usage of the keyboard. An embedded airbag mechanism is self-inflatable to raise keys to the normal operating heights. The keys will be retracted when the airbag is deflated. The rising and retracting of the keys can also be controlled by hinge-like structure. The close and open of the cover of a laptop computer will activate the mechanism to raise and retract the keys on the keyboard.

REFERENCES:
patent: 4795888 (1989-01-01), MacFarlane
patent: 5163765 (1992-11-01), Levy
patent: 5220521 (1993-06-01), Kikinis
patent: 5459461 (1995-10-01), Crowley et al.
patent: 5595449 (1997-01-01), Vitkin
patent: 5694124 (1997-12-01), Wood
patent: 5812116 (1998-09-01), Malhi

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