Two-stage button structure

Details Two-stage button structure Two-stage button structure

2007-05-15

2007-05-15

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Sequential operations

C200S406000, C200S516000

Reexamination Certificate

active

11580089

ABSTRACT:
A two-stage button structure includes: a silver paste PCB, a metal dome, a film, a flexible contact body, and a button body. When the button body is pressed to a first stage, the pair of conductive blocks of the flexible contact body respectively passes through the pair of through holes of the film to respectively electrically contact the first and the second conductive areas in order to generate a first stage signal. When the button body is pressed to a second stage, the metal dome is pressed via the contact pin to touch the third conductive area and the pair of conductive blocks respectively electrically contact the first and the second conductive areas at the same time so that the second and the third conductive areas electrically connect with each other to generate a second stage signal.

REFERENCES:
patent: 4659881 (1987-04-01), Dowe
patent: 5510584 (1996-04-01), Norris
patent: 6303887 (2001-10-01), Ando
patent: 6936777 (2005-08-01), Kawakubo
patent: 6995324 (2006-02-01), Asada
patent: 7157650 (2007-01-01), Rochon
patent: 7166813 (2007-01-01), Soma et al.

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