Patent ID: 7066796

Claim:
A device for the manual sharpening of knives and other blades by two crossed carbide plates ( 3 a , 3 b ) arranged flatly over one another, comprising a shaft-shaped gripping and holding part ( 1 ) which has a smooth lower side ( 1 a ) 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 ( 3 a , 3 b ) 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 ( 3 a , 3 b ) becomes accessible for the blade to be sharpened; two same shape carbide plates ( 3 a , 3 b ) 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 ( 8 a ) in the function part ( 2 ) into which the flat side of the one carbide plate ( 3 a ) is exchangeably inserted parallel to the smooth lower side ( 1 a ) of the gripping and holding part ( 1 ); a second recess ( 8 b ) in the function part ( 2 ) into which the flat side of the other carbide plate ( 3 b ) is exchangeably inserted parallel to the smooth lower side ( 1 a ) 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 ( 3 a , 3 b ) out of the base of the recesses ( 8 a , 8 b ) to fix the carbide plates ( 3 a , 3 b ) 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 ( 3 a , 3 b ) inserted into the recesses ( 8 a , 8 b ); such a position of the recesses ( 8 a , 8 b ) in the function part ( 2 ) that, by changing the carbide plates ( 3 a , 3 b ) between the recesses ( 8 a , 8 b ) and/or by rotation of the carbide plates ( 3 a , 3 b ) in at least four-fold manner, different edge sections of the carbide plates ( 3 a , 3 b ) for the V-shaped sharpening zone ( 5 ).