DE1007653B - Circular knives for slicers - Google Patents

Description

It is known that circular knives with smooth running Cut soft food with a hard outer skin, e.g. B. Sausage products in cellular glass casings, badly cut. One has therefore z. B. in the case of circular knives for bread slicers the cutting edge of the knife serrated like a saw.

One also has the circular knives for meat cutting machines the serration of the knife edge is already effected by grooves or grooves, which in one side surface of the knife are incorporated. In the previously known form of this toothing but in the case of circular knives, the grooves or grooves in those facing away from the contact surface of the knife on the material to be cut Side, incorporated into the so-called cutting face, on which the cutting edge of the circular knife is reground. The consequence of the necessary regrinding is the grinding out of the grooves and the immediate emergence of a customary smooth edge.

These shortcomings of the known circular knives are eliminated according to the invention in that grooves or fillets are worked into the chest surface of the circular knife resting on the material to be cut. That Circular knife can then on its cutting face on the entire radial length of the grooves or flutes or Holes are reground.

The circular knife according to the invention is primarily intended for slicers. at Such circular knives are sufficient for the sharp-edged corners produced by a few hollows or grooves in the circular cutting edge to cut the hard outer surfaces, z. B. the cell glass casing of sausage ' was. Few grooves or hollows create few corners where meat or sausage remains can be found can start. A feature of the invention is therefore that the suitably concave chest surface of the Knife has only a few grooves or hollows at a greater distance from each other, which extend in the direction of the circular cutting edge inwards to the regrindable cutting depth of the knife.

When regrinding the knife on its cutting face, the cutting edges of the troughs or Hollow fillets are also included, but they remain sunk in the knife edge and retain theirs Effectiveness. When the knife edge is pulled off, the cutting edges of the troughs or flutes become usually not included. As a result, they retain the roughness and roughness they obtained from grinding thereby also act favorably for the intended purpose.

In the drawing, a circular knife of the new type is shown in one embodiment. Show it

Fig. 1 and 2 the circular knife in view and section, circular knife
for slicers

Applicant:

Gebr. Ortlinghaus OHG _r Remscheid,
Honsberger Str. 77

Rudolf Ortlinghaus, Fritz Ortlinghaus,

Adolf Ortlinghaus, Remscheid,

and Otto Ortlinghaus jun., Wermelskirchen,

have been named as inventors

Fig. 3, 4 and 5 a fragment of the circular knife with the flutes ground into its chest or hollows.

The circular knife is either flat on its chest side or, for practical purposes, slightly concave; it can be of any type. The cutting edge of the circular knife is formed by its chest surface b and the inclined face / knife back r.

In the chest surface b of the knife starting from its cutting edge radially or approximately radially directed flutes h are hollowed or otherwise incorporated, which gradually extend towards the center of the circular knife or can also have parallel edges. The length of these fillets h expediently corresponds to the width of the possible wear and the regrinding.

The fillets h form interruptions in the cutting edge of the knife, which, as can be seen in Figs. 3, 4 and 5, are sunk into the latter due to the wedge shape of the knife edge and run out with more or less jagged transitions into the cutting edge of the knife. The slight curvature and the shallow depth of the fillets h prevents the creation of sharp-edged corners in which parts of the product to be cut, in particular meat and fat parts, could get stuck.

Claims (2)

PATENT CLAIMS: 1. Circular knife for slicers with a back to the cutting edge Knife face for cutting goods with 709 507/59 hard outer skin, characterized in that the concave chest surface (b) of the circular knife to be sharpened only on its convex cutting edge (/) has only a few troughs or flutes which are arranged at a greater distance from one another, emanating from the knife edge and extending in a radial or approximately radial direction (K) has a shallow depth, which form individual depressions (d) in the otherwise smooth knife edge. 2. Circular knife according to claim 1, characterized in that the length of the troughs or flutes Qi) in the chest surface (b) of the knife corresponds approximately to the wearable and regrindable blade width on the back of the knife. Considered publications:
British Patent No. 485,950;
German patent specification No. 659 381. 1 sheet of drawings