Key switch asembly for a computer keyboard

Details Key switch asembly for a computer keyboard Key switch asembly for a computer keyboard

1997-05-09

1998-06-16

Luebke, Renee S.

Electricity: circuit makers and breakers

Electric switch details

Actuators

H01H 312

Patent

active

057674680

ABSTRACT:
A key switch assembly for a computer keyboard includes a base board, a membrane circuit disposed on the base board, a biasing member supported on the membrane circuit, a key cap support, and a key cap. The key cap support is disposed between the base plate and the key cap. The base plate has a key confining frame portion with an opening for receiving the lower portion of the biasing member, and opposite first and second hole defining portions which define two opposite sides of the opening. The first and second hole defining portions have top surfaces flush with the top surface of the frame portion, and indented bottom surfaces that confine outwardly extending retaining strips of the biasing member therein such that the biasing member is prevented from lateral movement, thereby securing the biasing member between the base plate and the key cap.

REFERENCES:
patent: 4902862 (1990-02-01), Oelsch et al.
patent: 5278374 (1994-01-01), Takagi et al.
patent: 5382762 (1995-01-01), Mochizuki
patent: 5457297 (1995-10-01), Chen
patent: 5590020 (1996-12-01), Sellers

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