Key button structure for electronic devices

Details Key button structure for electronic devices Key button structure for electronic devices

1979-08-01

1981-07-14

Shepperd, John W.

Electricity: circuit makers and breakers

Electric switch details

Actuators

400490, H01H 312, B41J 512

Patent

active

042788617

ABSTRACT:
In a key button structure for electronic devices, a metal plate has one or more sharp-tipped projections extending from the surface thereof. The one or more projections of the metal plate are impaled into the key button body which is made of metal, from the bottom surface of the key button body of which the area is narrower than the surface area of the metal plate, thereby to intimately couple the key button body with the metal plate. When those ports are coupled, a part of the metal plate serves as a collar.

REFERENCES:
patent: 631892 (1899-08-01), Johnson
patent: 793462 (1905-06-01), Munson
patent: 2059882 (1936-11-01), Linsky
patent: 2981816 (1961-04-01), Cozart
patent: 3627935 (1971-12-01), Spievak
patent: 4029915 (1977-06-01), Ojima
patent: 4032729 (1977-06-01), Koistinen
patent: 4066860 (1978-01-01), Kawasaki
patent: 4123641 (1978-10-01), Murata

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