Portable screen assembly and expanding and contracting column and handing tool used therefor
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United States of America Patent
Stats
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Apr 17, 2012
Grant Date -
Feb 10, 2011
app pub date -
Apr 24, 2009
filing date -
May 2, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A portable screen assembly is small, light and easy to handle and enables easy extension and contraction of a column stretching a screen. The column has at least a first cylindrical body, a second cylindrical body, and a third cylindrical body, wherein the first cylindrical body slides within the second cylindrical body and the second cylindrical body slides within the third cylindrical body. The column also includes a first lock portion locking slide of the first cylindrical body, a second lock portion locking slide of the second cylindrical body, a lock release lever provided at an upper end portion of the first cylindrical body, and a release bar having an upper end portion pivotally connected to the lock release lever so as to be movable vertically within the first cylindrical body.
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