Key switches

Details Key switches Key switches

2006-02-21

2006-02-21

Lee, Kyung (Department: 2832)

Electricity: circuit makers and breakers

Solid contact

Membrane type

C200S341000, C400S479000

Reexamination Certificate

active

07002090

ABSTRACT:
A key switch includes a front cover formed with a cursor key hole. In the front cover, a first rib is formed on a first support wall and a second rib is formed on a second support wall. Accordingly, when a cursor key part disposed in the cursor key hole is pressed, it can be restrained against motion in a shorter side direction. The operationality of a cursor key can be improved, which allows a correct operation.

REFERENCES:
patent: 4654488 (1987-03-01), Westfall
patent: 5115108 (1992-05-01), Ogawa et al.
patent: 5401927 (1995-03-01), Lundell et al.
patent: 5980135 (1999-11-01), Shih-Hung
patent: 6580043 (2003-06-01), Spratte
patent: 6750415 (2004-06-01), Yamagami
patent: 0 841 672 (1998-05-01), None
patent: A 7-235242 (1995-09-01), None

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