Keyboards with elevated keys

Details Keyboards with elevated keys Keyboards with elevated keys

2006-04-04

2006-04-04

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Actuators

C361S689000

Reexamination Certificate

active

07022927

ABSTRACT:
Keyboards with elevated key structures are provided. An exemplary embodiment of a key structure includes a key cap, a substrate, a slider, a resilient member, a first rod and second rod. The slider is movable in a first direction with respect to the substrate between a first position and a second position. The first rod connects the substrate and the key cap. The second rod connects the key cap, the substrate and the first rod. The resilient member connects the slider and the first rod. When the key structure is in an original state with the slider situated in a first position, the key cap is situated at a first height. When the slider moves from the first position to the second position, the first rod is impelled by the slider, and the key cap descends toward the substrate to a second height less than first height.

REFERENCES:
patent: 5735390 (1998-04-01), Takagi et al.
patent: 5793605 (1998-08-01), Sellers
patent: 5874696 (1999-02-01), Hayashi et al.
patent: 5971637 (1999-10-01), Malhi et al.
patent: 6172868 (2001-01-01), Oura
patent: 6559399 (2003-05-01), Hsu et al.

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