Bar knob with cam-operated locking mechanism
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United States of America Patent
Stats
-
Oct 14, 2008
Grant Date -
Jan 26, 2006
app pub date -
Jul 21, 2004
filing date -
Jul 21, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chain saw includes a retaining assembly for a tensioning arrangement for adjusting the tension of the cutting chain in the chain saw. The retaining assembly includes a rotatable knob for operation with the chain saw's engine chassis, clutch cover, and guide bar and is rotatable about an axis of rotation between a tightening position for holding the guide bar in place and a loosening position enabling the guide bar to be repositioned whereby the tension in the cutting chain is adjusted. A locking mechanism is provided for locking and unlocking the knob. When the locking mechanism is in a locking position, moveable engagement points of the locking mechanism extended beyond the confines of the knob and engage fixed engagement points. When the locking mechanism is in the unlocking position, the moveable engagement points, having moved inwardly of the confines of the knob, are disengaged from the fixed engagement points.
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Family
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Cited Art Landscape
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