Keyboard switch assembly with touch-centering grid

Details Keyboard switch assembly with touch-centering grid Keyboard switch assembly with touch-centering grid

1982-01-04

1984-07-10

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200295, H01H 900, H01H 1370

Patent

active

044594399

ABSTRACT:
A keyboard switch assembly comprising a plurality of keyboard switches arranged in a matrix of vertical and horizontal rows, the switches being surrounded by switch cell walls forming a touch-centering grid which, in turn, is surrounded by a front wall and a frame. The switches, supported on shoulders in the open switch cells, are connected to a printed circuit board by means of solder pins. The printed circuit board abuts against the lower extremities of the switch cell walls, being centered by the assembly frame.

REFERENCES:
patent: 3286045 (1966-11-01), Clark, Jr. et al.
patent: 3619475 (1971-11-01), Bailey
patent: 3800104 (1974-03-01), Lien et al.
patent: 3962556 (1976-06-01), Kravchuck
patent: 4029915 (1977-06-01), Ojima
patent: 4331851 (1982-05-01), Johnson
patent: 4339634 (1982-07-01), Weber

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