Pen-shaped input device having variable stiffness of writing tip
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United States of America Patent
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Feb 24, 2015
Issued Date -
N/A
app pub date -
Jul 29, 2013
filing date -
Oct 30, 2012
priority date (Note) -
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Abstract
The present invention relates to a pen-shaped input device having variable stiffness of writing tip, which at least includes a support, a printed circuit board, a hollow barrel, a first rubber member, a hollow ferrite core, a linear shaft, a writing tip and a pen head, and characterized in that: a second rubber member, a switch unit and a stagger unit are installed, the switch unit is formed with at least a stop piece, wherein one of the stop pieces is formed with a hollow convex column, the hollow convex column is formed with a switch pin, when the switch pin is at a first position, the first rubber member is served to provide a first stiffness to the writing tip, when the switch pin is transversally moved to a second position, the second rubber member is served to provide a second stiffness to the writing tip.
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