Tactile element and keyboard including the tactile element
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United States of America Patent
Stats
-
Dec 22, 1981
Issued Date -
N/A
app pub date -
Jan 31, 1980
filing date -
Nov 17, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tactile snap-action element for use in keyboards, the element comprising an arcuately shaped invertible first dome and a second dome shaped actuating protrusion extending from the invertible second dome, the actuating dome protrusion being integral with the invertible dome and being non-invertible. The element is operated by an actuation force which acts directly or indirectly through the non-inverting second dome to invert the first dome and to provide tactile feedback. The keyboard includes a plurality of keys, each key comprising an element, a conductive circuit associated with the first dome and movable with the inversion of the first dome to electrically contact a second conductive circuit associated with the element.
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Cited Art Landscape
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