Device for manually sharpening knives and other blades, comprising interchangeably mounted hard metal plates
OwnerKonrad Pfausinventor
Life of this patent
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Abstract
A device for the manual sharpening of knives and other blades having exchangeably held carbide plates. The exchangeable carbide plates of manual sharpening devices are inserted or pushed into recesses or into a reception of the device body and must be fixed there. This is done by a screw connection in known devices. In the proposed solution, the carbide plates are fixed by snap-latching parts. This represents a favorably technical assembly means to fix the carbide plates fast and reliably and to nevertheless release them again easily and without tools. The snap-latching part can have the form of a cover plate or can engage over the carbide plate like a lug.
Claims20
A device for the manual sharpening of knives and other blades by two crossed carbide plates (3a, 3b) arranged flatly over one another, comprising
- a shaft-shaped gripping and holding part (1) which has a smooth lower side (1a) with which the device can be placed solidly on a smooth support in use;
- a function part (2) at the one longitudinal end of the gripping and holding part (1) which receives the carbide plates (3a, 3b) and surrounds them with the exception of a cut-out (4) through which a V-shaped sharpening zone (5) at the crossing point of the carbide plates (3a, 3b) becomes accessible for the blade to be sharpened;
- two same shape carbide plates (3a, 3b) which have straight-line edge sections with which they form the V-shaped sharpening zone (5) due to their crossing, which each have at least one through-going cutout (10) and which have rotational symmetry with respect to their outer contour and with respect to the cut-outs (10);
- a first recess (8a) in the function part (2) into which the flat side of the one carbide plate (3a) is exchangeably inserted parallel to the smooth lower side (1a) of the gripping and holding part (1);
- a second recess (8b) in the function part (2) into which the flat side of the other carbide plate (3b) is exchangeably inserted parallel to the smooth lower side (1a) of the gripping and holding part (1);
- spigots (9) which each project as counterpieces to the at least one cut-out (10) in the carbide plates (3a, 3b) out of the base of the recesses (8a, 8b) to fix the carbide plates (3a, 3b) against the lateral positional changes;
- a cover part (11) insertable into the function part (2) and having a releaseable snap-latching to upwardly fix the carbide plates (3a, 3b) inserted into the recesses (8a, 8b);
- such a position of the recesses (8a, 8b) in the function part (2) that, by changing the carbide plates (3a, 3b) between the recesses (8a, 8b) and/or by rotation of the carbide plates (3a, 3b) in at least four-fold manner, different edge sections of the carbide plates (3a, 3b) for the V-shaped sharpening zone (5).
A device for the manual sharpening of knives and other blades by means of a carbide plate which exchangeably pushed into reception in the device body having a width precisely corresponding to the plate thickness and is fixed by a snap-latching part which engages over the carbide plate from the front in a central and flush manner and from which at least one snap-lug releasably latches in the device body behind the carbide plate.
Dependencies are inferred from the claim text.