Latch operated centrifugally released safety clutch for saws
AssigneeTextron Inc.
InventorEdward J. Bidanset
Life of this patent
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Abstract
A safety coupling for quickly disconnecting a cutting instrumentality from the power source of a hand-held power tool comprises a pawl on a rotating driving member engaging an abutment on a coaxial driven member. During normal operation a trip arm holds the pawl engaged. When the trip arm is tripped to release the pawl, a latch prevents reengagement of the pawl until reset.
Claims14
A safety coupling comprising a first rotatable member having at least one abutment, a second rotatable member adjacent said first rotatable member and coaxial therewith, pawl means pivotally mounted eccentrically on said second rotatable member for movement between a position in which it engages said abutment to provide a driving connection between said first and second rotatable members and a position in which it is disengaged from said abutment, first latch means for releasably holding said pawl means in engaged position, means for releasing said first latch means for movement of said pawl means to disengaged position and second latch means for thereupon preventing reengagement of said pawl means with
Dependencies are inferred from the claim text.