Molded keyboard and method of fabricating same

Details Molded keyboard and method of fabricating same Molded keyboard and method of fabricating same

1981-03-16

1982-11-16

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

235145R, 340365R, 340365F, 400472, H01H 1370

Patent

active

043596134

ABSTRACT:
A moldable, impulse operation synthetic resin keyboard, and a method of fabricating the same, are provided wherein the keyboard achieves essentially standard, tactile feel and feedback, mechanical N-key rollover protection and precise, reliable output. The keyboard includes a synthetic resin base plate having a plurality of elongated, cantilever mounted flippers, along with a plurality of elongated, laterally spaced, inwardly and opposedly extending, pivotal, key-supporting arms. Upon depression of a key, the associated flipper is deformed until a release point is reached, whereupon the flipper is disengaged, allowing the flipper to quickly return to its rest position. A keyboard output is developed as the flipper, during overtravel thereof past its rest position, strikes a signal-generating assembly.

REFERENCES:
patent: 3353038 (1967-11-01), Mason et al.
patent: 3600528 (1971-08-01), Leposavic
patent: 3723673 (1973-03-01), Clary et al.
patent: 3725908 (1973-04-01), Brisebarre
patent: 4066860 (1978-01-01), Kawasaki
patent: 4258356 (1981-03-01), Jalbert

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