Scissors-type key switch

Details Scissors-type key switch Scissors-type key switch

1997-02-11

1998-06-23

Dang, Khanh

Electricity: circuit makers and breakers

Electric switch details

Actuators

200345, H01H 312

Patent

active

057692106

ABSTRACT:
A scissors-type key switch comprising a key top, a scissors-type supporting bracket, a base member, an elastic actuator, a membrane switch, and a bottom plate is provided. The membrane switch, the elastic actuator, and the base are disposed above the bottom plate. The scissors-type supporting brackets are pivotally supported and received on the base by the pivotally engagement between the pin shaft of the supporting brackets and the connecting holes of the base. The key top is also pivotally connected to the scissors-type supporting brackets by the connecting slots of the key top and the pin shafts of the supporting bracket. This scissors-type key switch features a simplified structure resulted from reduced number of components and durable operation wherein the key top can readily move down and up without rolling thereof. The manufacturing cost is advantageously reduced while the throughput is considerably increased.

REFERENCES:
patent: 4433225 (1984-02-01), Cowles
patent: 5278371 (1994-01-01), Watanabe et al.
patent: 5278372 (1994-01-01), Takagi et al.
patent: 5329084 (1994-07-01), Watanabe et al.
patent: 5512719 (1996-04-01), Okada et al.
patent: 5562203 (1996-10-01), Mochizuki

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