Tightening mechanism for chain saw guide bar
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United States of America Patent
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-
May 16, 2000
Issued Date -
N/A
app pub date -
May 8, 1998
filing date -
Oct 2, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A chain saw guide bar including a chain tightening mechanism. A shaft or rack slidable within the bar body includes a head portion slidable rearwardly against a bar mounting stud. The head portion resides between opposed edges formed in the bar body and the head portion includes fingers that straddle the mounting stud. Rearward sliding of the shaft or rack against the stud produces a lateral force urging spreading of the fingers to produce wedging of the fingers between the opposed edges and the stud. Such wedging of the fingers produces resistance to return sliding of the shaft and retains the tightened condition of the chain.
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