Adjustment mechanism for a headband arrangement of a safety helmet
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United States of America Patent
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-
Feb 21, 2017
Grant Date -
Mar 5, 2015
app pub date -
Dec 23, 2013
filing date -
Aug 30, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An adjustment mechanism for a headband arrangement having a headband member with a notched track positioned on an end thereof, the adjustment mechanism including: a rotatable knob having a first contact member and a second contact member; and a rotatable hub member having a gear portion with teeth to engage the notched track of the headband member, such that rotation of the hub member in a first direction causes the headband member to tighten and rotation of the hub member in a second direction causes the headband member to loosen; wherein, upon rotation of the knob in the first direction, contact between the first contact member and the hub member causes the hub member to rotate in the first direction, and upon rotation of the knob in the second direction, contact between the second contact member and the hub member causes the hub member to rotate in the second direction.
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