Key switch

Details Key switch Key switch

1999-05-04

2000-03-21

Friedhofer, Michael

Electricity: circuit makers and breakers

Electric switch details

Actuators

H01H 1370

Patent

active

060405414

ABSTRACT:
A key switch includes a base, a circuit board, a retaining board, a rubber spring, a support linkage and a key cap. A first engaging mechanism and a second engaging mechanism are formed on the base. The circuit board is positioned above the base and comprises a switch electrode. The rubber spring is positioned on the circuit board. The support linkage is engaged with the base, having a first link and a second link pivotably attached together. A pair of engaging pins of the first link engage with the base, and a pair of arcuate faces is formed on the base proximate the engaging pins. A sliding link is formed on the second link to engage with the second engaging mechanism. The key cap engages with the support linkage.

REFERENCES:
patent: 5735390 (1998-04-01), Takagi et al.
patent: 5763842 (1998-06-01), Tsai et al.
patent: 5770824 (1998-06-01), Tsai et al.
patent: 5779030 (1998-07-01), Ikegami et al.
patent: 5850194 (1998-12-01), Lin

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