Chain saw with tool-less chain tensioner and guide bar lock
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United States of America Patent
Stats
-
Jan 2, 2007
Issued Date -
N/A
app pub date -
Mar 1, 2005
filing date -
Mar 1, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A chain saw includes an engine, a chassis, and a clutch cover. A guide bar is adjustable relative to the chassis and the clutch cover, but stationary while in a secured position. An adjustment arrangement moves the guide bar to tension a chain, and includes a member operatively connected to the bar, intermeshed drive components to move the bar, and a manually engaged member that is operated without use of any tool. A guide bar securing arrangement has a knob rotatable between a tightened and loosened positions. In the loosened position, the guide bar may be adjusted. A knob handle of the securing arrangement is pivotable between a stowed position and an operation position. A lock arrangement, associated with the knob and knob handle, includes portions that cooperate to prevent the knob from rotating when the knob handle is in the stowed position.
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