Folding concealed hacksaw
OwnerBarry Spellinventor
Life of this patent
Estimating the term…
Abstract
A folding hacksaw having the back of the saw and the saw handle pivotally joined together and pivotally connected to a four-bar linkage comprising the blade, side frames and a back frame. The back frame is enclosed within the back of the saw. Movement of the handle relative to the back of the saw causes the saw blade to extend from the back or retract into the back in the manner of a folding knife. The movement of the handle places the handle in the proper cutting position when the blade is extended. A top latch maintains the handle in line with the back in the retracted position. A blade latch maintains the saw blade and the handle rigidly in the blade extended position.
Claims18
A folding saw comprising a back and a handle pivotably attached to the back,
- a pair of side frames pivotably attached to the back and including means for pivotal attachment of a saw blade,
- a back frame pivotably attached to one side frame, and a handle link pivotably attached to the back frame and the handle,
- whereby movement of the handle relative to the back into position for sawing extends the side frames into sawing position and movement of the handle away from the sawing position retracts the side frames into the back and handle.
A folding saw comprising a back and a handle pivotably attached to the back,
- a pair of side frames pivotably attached to the back and including means for pivotal attachment of a saw blade,
- a back frame pivotably attached to one side frames and a handle link pivotably attached to the back frame and the handle,
- a top latch adapted to retain the handle in the retracted position, and
- a bottom latch adapted to retain at least one side frame in the extended position.
Dependencies are inferred from the claim text.