Importance

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Abstract

A self-actuated woodworking tool [T] for one-handed reciprocating operation has a chambered haft [1] and a tool shank [4] carried captively axially within the haft in slidable, reciprocal relationship. A shank portion [5] extending forwardly from the haft has a cutting edge [6]. A haft ferrule [11] precisely orients the shank and so also the cutting edge angularly with respect to the haft. The haft cross-section permits the user to know by tactile feedback the angular orientation of the haft and thus also the cutting edge. A guide [10] carried by the shank within the chamber cooperates with the ferrule and provides low-friction sliding interengagement between the tool shank and walls of the chamber without radial displacement from the axis. The chamber [3] provides an internal contact surface [16] for hammer-like blows thereon against a shank butt [17] for driving the cutting edge against the workpiece. A kick-back spring [19] assists in reciprocation of the haft, which brings about self-actuated blade-cutting action on the workpiece.

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First Claim