Removable cutting mechanism
OwnerEugene W. Knuthinventor
Life of this patent
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Abstract
Apparatus is described for the fastening of two or more planar structures. Specifically described is a saw which has a removable cutting edge and handle. The cutting edge fastening means includes mating chamfered surfaces as well as tensioned pin-in-slot retainers. The handle is retained by a pin-in-slot constraint coupled with having a saw handle groove tightly accommodate the saw body edge. This invention relates generally to improvements in joining together substantially rigid coplanar bodies, and more particularly to providing a saw with an improved removable blade and handle.
Claims4
Means for the conjunction of plural substantially rigid planar bodies comprising:
- a first elongated body provided with four edge surfaces, at least one of which is provided with a chamfer, said body being further provided with apertures along its length below said chamfered surface;
- a second elongated body having four edges, the first edge of which has a surface chamfered to mate with the chamfered edge surface of said first body, said second body having resilient strips along its length substantially coplanar with said bodies but perpendicular to said edge surfaces, one end of said resilient strip being firmly affixed above said first edge to said second body, the other end of said resilient strip terminating in a pin which is transverse to said coplanar bodies, said pin being suitably oriented to be inserted in the apertures of the first body, and to tightly engage the upper edge of said aperture.
A saw having a removable sawing edge comprising:
- a saw body provided with four edge surfaces, at least one of which is provided with a chamfer, said body being further provided with apertures along its length below said chamfered surface;
- a cutting body having four edges, the first edge of which has a surface chamfered to mate with the chamfered edge surface of said saw body, said cutting body having resilient strips along its length substantially coplanar with said bodies but perpendicular to said edge surfaces, one end of said resilient strip being firmly affixed above said first edge to said cutting body, the other end of said resilient strip terminating in a pin which is transverse to said bodies, said pins being suitably oriented to be inserted in the apertures of the saw body and to tightly engage the upper edge of said aperture.
Dependencies are inferred from the claim text.