Bridge structure for keyboards
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United States of America Patent
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Nov 4, 2003
Grant Date -
N/A
app pub date -
Feb 21, 2002
filing date -
Feb 21, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved bridge structure for keyboards consists of a first linkage element and a second linkage element pivotally engaging with each other. The first linkage element and second linkage element have respectively a pivotal trough which have respectively a pivotal trough slant surface section on the bottom section, and an axle which have respectively an axle slant surface section on the bottom section. The two slant surface sections intersect to form a fulcrum. The fulcrums remain stationary at the center to serve as the circle center of movements such that moving tolerances are unchanged when the key cap is depressed downwards. And the movements are performed based on the stationary center points which support and transfer forces in sideward directions to reduce sideward inclination and shaking.
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Cited Art Landscape
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