Rocker key elastomer dome keyboard

Details Rocker key elastomer dome keyboard Rocker key elastomer dome keyboard

1985-04-29

1986-10-21

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200159B, 200339, H01H 1370

Patent

active

046187448

ABSTRACT:
A keyboard including an elastomer dome keypad (15) and rocker mounted keys (25) positioned to acutate the domes (17) of the keypad (15) is disclosed. The rocker action keys (25) include outwardly extending flanges (29) that include apertures (49, 51) positioned to receive protrusions (33) that extend downwardly along the edge of the bezel apertures (23) in which each key (25) is to be positioned. The bezel (21) is positioned such that each key aperture (23) and, thus, each key (25) overlies the dome (17) of the elastomer dome keypad (15) that the key (25) is to actuate. The dome contacting region of the keys (25) is a pair of curved webs (53, 55). The curved webs apply a broad steady orthogonal force to the top of the underlying dome causing the dome to collapse in an even, positive manner even though the keys follow an arcuate path of travel.

REFERENCES:
patent: 3800104 (1974-03-01), Lien et al.
patent: 3916135 (1975-10-01), Holden et al.
patent: 4095059 (1978-06-01), Nishioka et al.
patent: 4096364 (1978-06-01), Lynn et al.
patent: 4314112 (1982-02-01), Misson et al.
patent: 4351988 (1982-09-01), Allbright
patent: 4352964 (1982-10-01), English
patent: 4378478 (1983-03-01), Deeg
patent: 4390765 (1983-06-01), Sado et al.
patent: 4430531 (1984-02-01), Wright
patent: 4493959 (1985-01-01), Viebrantz
IBM Tech. Disc. Bull.; D. L. Pierson, "Sloped Key Button", vol. 19, No. 3, 8-1976, pp. 1035, 1036.

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