Push switch and switch module
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United States of America Patent
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Oct 17, 2017
Issued Date -
N/A
app pub date -
Apr 25, 2014
filing date -
Apr 26, 2013
priority date (Note) -
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Abstract
Provided are a switch module and a push switch that have a soft sensation when pressed. A push switch and a switch module have a substrate, a first fixed contact point disposed on the substrate surface, a second fixed contact point disposed around the first fixed contact point on the substrate surface, a convex dome-shaped upper spring disposed on the substrate surface so that an end part is in contact with the second fixed contact point, the upper spring being pressed so as to invert the dome shape and to establish conduction between the first fixed contact point and the second fixed contact point, and a lower spring disposed below the upper spring, the lower spring adjusting the operation load applied to the upper spring during inversion of the dome shape.
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