FINE ADJUSTMENT MECHANISM AND ANGLE ADJUSTING DEVICE HAVING THE FINE ADJUSTMENT MECHANISM
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United States of America Patent
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Issued Date -
Feb 19, 2015
app pub date -
Jan 15, 2014
filing date -
Aug 19, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A fine adjustment mechanism includes a connecting unit and a fine-tuning bolt having a bolt shaft and a bolt head. The bolt shaft has a threaded section rotatably engaged with the connecting unit, a non-threaded section between the threaded section and the bolt head, and an annular protrusion projecting outwardly and radially from an outer surface of the non-threaded section and spaced apart from the bolt head. A retaining unit is molded over the fine-tuning bolt and covers the annular protrusion and portions of the non-threaded section which are proximate to two opposite annular end surfaces of the annular protrusion. The fine-tuning bolt is rotatable relative to the retaining unit. The connecting unit is movable along the threaded section when the fine-tuning bolt is rotated.
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