Revolving structure for glasses part
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United States of America Patent
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-
Apr 15, 2008
Grant Date -
Aug 17, 2006
app pub date -
Feb 10, 2006
filing date -
Feb 15, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A revolving structure for a glasses part for revolving a second member relative to a first member is provided with a rotational shaft provided on the first member and a cylindrical member with elasticity which is fitted on the rotational shaft externally, where the cylindrical member is fitted on the second member in a state that the cylindrical member is pressed by a pressing member and is not rotated, even if the rotational shaft of the first member is rotated. The second member has a groove portion a in which the cylindrical member is fitted and an arc face for contact with a circumferential face of the cylindrical member is formed on the groove portion. Accordingly, a revolving structure for a glasses part where when a rotational shaft is rotated, sufficient frictional resistant force is provided and entrance of dust or the like is prevented.
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