TORSION SPRING AND FOLDING DEVICE
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United States of America Patent
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N/A
Issued Date -
May 2, 2013
app pub date -
Jun 19, 2012
filing date -
Oct 28, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A folding device includes a main body, a cover, and a torsion spring. The cover is rotatably connected to the main body and capable of covering the main body, the cover comprising a supporting member. The torsion spring renders the cover spring-loaded, to rotate the cover open from the main body. The torsion spring includes a coil, a first arm and a second arm. The first arm includes a first portion extending from one end of the coil along a first direction that is perpendicular to an axis of the coil; and a second portion extending from the end of the first portion along a second direction different from the first direction. The first portion and the second portion support the supporting member from different positions and different lengths when the cover is opened. The second arm restricts against the main body.
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