Apparatus for opening/closing chin protection bar of safety helmet and safety helmet having the same
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United States of America Patent
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N/A
Issued Date -
Apr 23, 2009
app pub date -
Oct 3, 2008
filing date -
Oct 18, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
There is provided an apparatus for opening/closing a chin protection bar installed in a helmet cap having a front opening, the apparatus including: a fixing unit which is fixed to the helmet cap and includes a movable shaft guide having an elongated hole shape and a pivoting guide formed approximately vertical to the movable shaft guide; and a pivoting unit which is fixed to the chin protection bar and includes a first connecting unit slidably inserted into the movable shaft guide and a second connecting unit slidably inserted into the pivoting guide, wherein the pivoting guide has a straight line shape, and the second connecting unit moves back and forth in a straight line in the pivoting guide and the first connecting unit moves back and forth in a straight line in the movable shaft guide according to the straight-line back-and-forth movement of the second connecting unit.
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