EP1296806B1 - Blade - Google Patents

Abstract

The invention relates to a blade which is suitable for cutting various solid, viscous, and hard-wearing materials. The blade comprises a plate, on which the cutting edge is configured by the formation of a bevelled edge of the broad surface of the plate. The teeth are provided with hollows (7) that lie at a distance from the points of said teeth on the bevelled edge of the broad surface of the plate.

Description

The invention belongs to the construction of knives, suitable for the Cutting various solid, viscous and resistant fabrics, and can be used in the technique for cutting various synthetic materials, rubber, Plastics, adhesive bonds, etc., in the food industry for cutting frozen or solid products, in construction when cutting synthetic Parts or cover layers are used.

At present, different constructions of knives are needed everywhere Teeth that are cutting more resistant, firmer and more viscous Cover layers allow. But the known constructions of knives are specializing in different fabrics. The shape of teeth, the angle of the tip of cutting, the sharpening angle of the teeth are known in these Constructions selected either theoretically or experimentally, based on physical parameters of the material to be cut, as a result of which Use of the known knives for cutting different according to their Codes are limited to substances. It also reduces the speed of the Cut or increase the force required to impact the knife need to cut to the required cutting speed to carry out, in the increase of certain physical characteristics of the Fabrics such as e.g. Strength and viscosity.

Known is the knife, suitable for cutting the polymer materials that made a plate, a cutting edge, executed at least at one edge of the plate, the Teeth, executed on the cutting edge and its opposite surfaces with the opposite wide faces of the plate are connected, consists (1).

In this construction, the cutting edge is wavy, and the Wavy teeth are alternating transversely with respect to the longitudinal direction of the plate bent to each other.

As a limitation of this construction, the increase is the effort, which one should add for cutting a resistant material, because the Teeth are saw-like bent in the transverse direction. The shape of the outer surface of Teeth do not allow to effectively cut solids because the wavy ones unsharpened form of teeth effective cutting into the solid substance limited.

As a result of the above, other known constructions of Knives with teeth where the cutting edge and the teeth are U-shaped with each other connected recesses of the plate edge are formed, the disadvantages mentioned (2), (3).

For increasing the speed of cutting as well as for the Reduction of the effort is the cutting edge and the friction surfaces of the Hand tools usually lubricated with oil. In the above Constructions dissipates the oil during lubrication on the plate surface, flows from Teeth and from the cutting edge after a few longitudinal and transverse movements of the Knife blade off, whereby the effectiveness of the oil lubrication is lowered.

Known is also the knife, suitable for cutting frozen Products made from the plate, the cutting edge, running at least on one edge of the Plate, teeth, executed on the cutting edge and its opposite Surfaces are connected to the opposite wide faces of the plate, The teeth are filled with the gaps that are on the teeth the wide plate surface are (4).

The teeth of this knife are as isosceles trapeze with the Straightness tip executed, and the gaps are with the cutting edge on the Basis of the trapezium for the formation of small points at the Straightness tip of the big tooth connected. In relation to the As mentioned above, this construction makes it possible to cut more firmly Fabrics, such as e.g. Frozen products, resulting in the effective loosening of the Substances and elimination of the hanging of particles of the substances to be cut off is reached at the cutting edge. But for the sake of improving the cutting are the Teeth also transversely with respect to the longitudinal direction of the plate alternately to each other bent, whereby the force increases when cutting. Also reduced The speed of cutting increases and the effort required for cutting increases viscous substances, such as e.g. Rubber, synthetic polymer plastics, synthetic Adhesive bonds, various polymer materials with relatively lower Strength and high viscosity; it is spiked by the absence of the Cutting angle of the big tooth at its tip causes. The cutting one Surface of this tooth is basically only pointed through Grooves between trapezoidal teeth and tapered cutting edge on the Basis of the trapezoid formed between the gaps. This will be the effective Use of the knife for cutting viscous substances impossible. In the Oil lubrication of the cutting edge will melt the oil on the plate surface because of the Areas that drain the oil from the grooves between the teeth and could hamper from the gaps are missing. The oil also gets out of the gaps that are free associated with the basis of the trapezium of the teeth to be processed on Draining fabric because the gaps directly with the straightness tip of the tooth are connected.

As the most favorable technical solution the knife, consisting of one Plate, a cutting edge, executed at least at one edge of the plate by the Forming the edge bevel of the wide plate surface, the teeth executed at the cutting edge with the formation of the tips for each tooth and their opposite surfaces with the opposite wide surfaces of Plate are connected (5).

In this technical solution are the tips of the teeth and the cutting edge from their forehead from the U-shaped interconnected grooves of the Plate edge formed, and the side surfaces of the teeth are as U-shaped Recesses formed on the edge bevel of the wide plate surface. In addition, the tips of the teeth are different from the longitudinal axis of the plate removed, thereby gradually cutting the teeth into the depth of the processed substances is achieved. This technical solution improves the quality of the Cutting and closing the teeth in relation to each other in the Transverse direction of the plate.

Limitations of this device are insufficiently high Speed of cutting different fabrics with different physical indices, relatively high cutting force, ineffective use of oil lubrication when cutting various substances, because the lubrication when cutting freely both on the plate, and on the processed substance drains off.

From document US 3,574,937 A a knife is known, which runs obliquely to the longitudinal extent of the blade and having intersecting trench-shaped recesses.

The problem to be solved by the invention is the extension of the Assortment of fabrics to be worked on by cutting that are different from each other both in terms of strength, density, and viscosity differ without significant change in the speed of cutting and the effort required; in ensuring the effective use of lubrication and the effective removal of the products of cutting.

The technical result achieved in the execution of the construction can be, increasing the speed of cutting, the reduction the effort of cutting, ensuring effective lubrication.

To solve the problem, the invention teaches a knife according to claim 1.

• die Grenzen der Lücke auf der Kantenabschrägung der breiten Plattenfläche V-förmig ausgeführt werden; die Längsachse der Lücke liegt dabei der Länge der Längsachse des Zahnes nach, und der Winkel der V-förmigen Grenze der Lücke wird zur Spitze des Zahnes gerichtet.
• die Lücken in ihrem Querschnitt U-förmig ausgeführt werden;
• die Spitzen der Zähne und die Schneide seitens ihrer Stirn aus den U-förmigen miteinander verbundenen Auskehlungen der Plattenkante gebildet werden;
• die Spitzen der Zähne und die Seitenflächen der Zähne als U-förmige Aussparungen auf der Kantenabschrägung der breiten Plattenfläche ausgeführt werden;
• die breiten Plattenflächen gekrümmt mit den auf den gegenüberliegenden und parallelen Achsen hinsichtlich der Längsachse der Platte liegenden Radiuszentren der Krümmung ausgeführt werden, dabei muß die vorgenannte Kantenabschrägung (an der sich die Lücken befinden) der breiten Plattenfläche durch eine der ungeradlinigen Plattenflächen gebildet;
• die Schneide und die Zähne an zwei Kanten der Platte ausgeführt werden; die Zähne einer Kante der Platte sollen hinsichtlich der Zähne anderer Kante der Platte verschoben werden, dabei sollen die Längsachsen der Zähne einer Plattenkante auf dem gleichen Abstand zwischen den Längsachsen der anderen Plattenkante liegen;
• die Schneide durch die Formierung der Kantenabschrägung der beiden breiten Plattenflächen ausgeführt wird;
• die Lücken bei den Spitzen der Zähne an den Kantenabschrägungen der beiden breiten Plattenflächen liegen sollen.
• die Lücken miteinander in eine der Länge der Schneide nach liegende gemeinsame Aussparung verbinden sollen, und die Grenze der gemeinsamen Aussparung soll schlangenartig ausgeführt werden.

Additional variants of the execution of the knife are possible, but it is important that:

• the boundaries of the gap on the edge bevel of the wide plate surface are made V-shaped; the longitudinal axis of the gap is the length of the longitudinal axis of the tooth, and the angle of the V-shaped boundary of the gap is directed to the tip of the tooth.
• the gaps in their cross-section are U-shaped;
• the tips of the teeth and the cutting edge are formed by their forehead from the U-shaped interconnected grooves of the plate edge;
• the tips of the teeth and the side surfaces of the teeth are made as U-shaped recesses on the edge bevel of the wide plate surface;
• the wide plate surfaces are made curved with the radius centers of curvature lying on the opposite and parallel axes with respect to the longitudinal axis of the plate, the aforesaid edge bevel (on which the gaps are located) of the wide plate surface being formed by one of the non-linear plate surfaces;
• the cutting edge and the teeth are performed on two edges of the plate; the teeth of one edge of the plate should be displaced with respect to the teeth of the other edge of the plate, the longitudinal axes of the teeth of one plate edge being at the same distance between the longitudinal axes of the other plate edge;
• the cutting edge is carried out by the formation of the edge bevel of the two wide plate surfaces;
• the gaps in the tips of the teeth should lie at the edge bevels of the two wide plate surfaces.
• the gaps should connect to each other in one of the length of the cutting edge lying common recess, and the boundary of the common recess should be executed snake-like.

• der Boden der schlangenartigen Aussparung uneben ausgeführt wird;
• die Spitzen der Zähne und die Schneide seitens ihrer Stirn aus den W-förmigen miteinander verbundenen Auskehlungen der Plattenkante gebildet werden;
• die Spitzen der Zähne und ihre Seitenflächen durch zwei schräge V-förmige Aussparungen, die sich auf der Kantenabschrägung der breiten Plattenfläche zwischen den Zähnen befinden und in der Richtung zur Längsachse der Platte verengen, gebildet werden;
• die Zähne in ihrem Querschnitt U-förmig ausgeführt werden, dabei soll ihre Längsachse, orthogonal zur Längsachse der Platte liegen; die Zähne sollen nach der Fläche der Schneide vorstehen und ihre Seitenflächen sollen sich in der Richtung der Längsachse der Platte erweitern;
• die breiten Plattenflächen gekrümmt mit den auf den gegenüberliegenden und parallelen Achsen hinsichtlich der Längsachse der Platte liegenden Radiuszentren der Krümmung ausgeführt werden, dabei muß die vorgenannte Kantenabschrägung (an der die gemeinsame Aussparung gebildet ist) der breiten Plattenfläche durch eine der ungeradlinigen Plattenflächen gebildet werden, und die Spitze jedes Zahnes ist nach oben hinsichtlich der Fläche der Schneide verschoben und liegt unter den Winkeln α im Bereich vom 2° bis 7° hinsichtlich der Symmetrieebene der gekrümmten breiten Plattenflächen.
• die Schneide und die Zähne an zwei Kanten der Platte ausgeführt werden; die Zähne einer Kante der Platte sind hinsichtlich der Zähne der anderen Kante der Platte verschoben, dabei liegen die Längsachsen der Zähne einer Plattenkante auf dem gleichen Abstand zwischen den Längsachsen der anderen Plattenkante.

In addition to the last variant of the embodiment of the invention, additional variants are possible, but it is also important that:

• the bottom of the serpentine recess is carried out unevenly;
• the tips of the teeth and the cutting edge are formed by their forehead from the W-shaped interconnected grooves of the plate edge;
• the tips of the teeth and their side surfaces are formed by two oblique V-shaped recesses located on the edge chamfer of the wide plate surface between the teeth and narrowing in the direction to the longitudinal axis of the plate;
• the teeth are made U-shaped in their cross-section, while their longitudinal axis should be orthogonal to the longitudinal axis of the plate; the teeth should protrude towards the surface of the cutting edge and their side surfaces should expand in the direction of the longitudinal axis of the plate;
• the wide plate surfaces are made curved with the radius centers of curvature lying on the opposite and parallel axes with respect to the longitudinal axis of the plate, the aforesaid edge bevel (where the common recess is formed) of the wide plate surface must be formed by one of the non-linear plate surfaces, and the tip of each tooth is displaced upwardly with respect to the surface of the cutting edge and lies at angles α in the range of 2 ° to 7 ° with respect to the plane of symmetry of the curved broad plate surfaces.
• the cutting edge and the teeth are performed on two edges of the plate; the teeth of one edge of the plate are displaced with respect to the teeth of the other edge of the plate, the longitudinal axes of the teeth of one plate edge being at the same distance between the longitudinal axes of the other plate edge.

By supplying the teeth with the mentioned gaps, it has been possible to solve the task.

Fig. 1 stellt schematisch die angemeldete Konstruktion zwecks der Erläuterung des Prinzips ihrer Arbeitsweise dar;

Fig. 2 - dasselbe wie es auf der Fig. 1, der Querschnitt im Bereich der Lücke;

Fig. 3 - der vergrößerte Teil der Messerplatte mit beiderseitigem Anschliff mit den V-förmigen Lücken;

Fig. 4 - der Schnitt A-A auf der Fig. 3;

Fig. 5 - der Schnitt B-B auf der Fig. 3;

Fig. 6 - das vergrößerte Fragment der Zähne mit dem Anschliff;

Fig. 7 - der Schnitt A-A auf der Fig. 6;

Fig. 8 - der Schnitt B-B auf der Fig. 6;

Fig. 9 - der Schnitt C-C auf der Fig. 6, umgedreht;

Fig. 10 stellt schematisch die angemeldete Konstruktion zwecks Erläuterung des Prinzips ihrer Arbeitsweise bei der Ausführung der Lücken in Form einer schlangenartigen gemeinsamen Aussparung dar;

Fig. 11 - dasselbe wie es auf der Fig. 10, der Querschnitt;

Fig. 12 - der vergrößerte Teil der Messerplatte mit beiderseitigem Anschliff mit der W-förmigen Schneide, gebildet durch zwei schräge V-förmige Aussparungen;

Fig. 13 - der Schnitt A-A auf der Fig. 12;

Fig. 14 - der Schnitt B-B auf der Fig. 12;

Fig. 15 - der Schnitt C-C auf der Fig. 12;

Fig. 16 - der Querschnitt der Messerplatte beim Schneiden des Stoffes und beim Vorhandensein der Schmierung auf der Zahnfläche;

Fig. 17 - der Querschnitt der Messerplatte beim Schneiden des Stoffes und beim Vorhandensein der Schmierung auf der Fläche in der Lücke;

The above advantages and the peculiarities of the present invention are explained by the best method of their realization with reference to attached figures.

Fig. 1 schematically illustrates the notified construction for the purpose of explaining the principle of its operation;

Fig. 2 - the same as in Fig. 1, the cross section in the region of the gap;

Fig. 3 - the enlarged part of the blade plate with mutual bevel with the V-shaped gaps;

Fig. 4 - the section AA in Fig. 3;

Fig. 5 - the section BB in Fig. 3;

Fig. 6 - the enlarged fragment of the teeth with the bevel;

Fig. 7 - the section AA in Fig. 6;

Fig. 8 - the section BB in Fig. 6;

Fig. 9 - the section CC on the Fig. 6, reversed;

Fig. 10 schematically illustrates the notified construction for the purpose of explaining the principle of its operation in the embodiment of the gaps in the form of a serpentine common recess;

Fig. 11 - the same as in Fig. 10, the cross section;

Fig. 12 shows the enlarged part of the knife plate with a bevel on both sides with the W-shaped cutting edge, formed by two oblique V-shaped recesses;

Fig. 13 - the section AA in Fig. 12;

Fig. 14 - the section BB in Fig. 12;

Fig. 15 - the section CC in Fig. 12;

Fig. 16 shows the cross-section of the knife plate when cutting the fabric and in the presence of lubrication on the tooth surface.

Fig. 17 shows the cross-section of the knife plate when cutting the fabric and in the presence of lubrication on the surface in the gap;

The knife (FIGS. 1, 2) is formed from the plate 1. The cutting edge 2 is executed at least at one edge of the plate 1 by the formation of the edge bevel 3 of the wide surface 4 of the plate 1. The teeth 5 are made on the cutting edge 2 with the formation of the tips 6 for each tooth 5. The opposite surfaces of the teeth 5 are connected to the opposite wide surfaces 4 of the plate 1. The teeth 5 are provided with the gaps 7. The gaps 7 are located at the tips 6 of the teeth 5 on the distance l . The gaps 7 are located at the edge bevel 3 of the wide surface 4 of the plate. 1

The gaps 7 are suitable for the effective lubrication, which is introduced into the surfaces of the teeth 5, which are connected to the wide surfaces 4 of the plate 1. By moistening and the surface tension force formed in the gaps 7, the oil is effectively stopped on the chamfer 3 and on the surfaces of the teeth 5. In this case, the chamfer 3 serves as an additional obstacle to the flow of the lubricant on the wide surface 4 of the plate 1. Because the gaps 7 are at the tips 6 of the teeth 5 on the distance l , their cutting shape is not injured; the oil is introduced into the tip 6 of the tooth 5 in the sufficient amount and the main cutting edges of the teeth 5 are lubricated effectively. The distance l is selected constructively, and the teeth 5 are ground in one way or another according to the concrete shape resulting from the construction of the tooth 5. The execution of the gaps 7 at the tips 6 of the teeth 5, as can be seen from Figs. 1, 2, practically touches not the cutting surfaces of the cutting edge 2, formed by the chamfer 3, through the tips 6 of the teeth 5 and through the Polished, therefore the registered design of the knife can be used practically in all known constructions of toothed knives.

But in order to increase the properties of the cutting tool and its operational data, it is appropriate that (Fig. 3, 6), the limits of the 8 Gap 7 at the chamfer 3 of the edge of the wide surface 4 of the plate 1 V-shaped be executed. The longitudinal axis of the gap 7 is the length of the longitudinal axis of the Tooth 5 after. The angle of the V-shaped boundary 8 of the gap 7 is after the peak 6 of the tooth 5 directed. In this case, the whole surface of the tooth 5 becomes effective used; the area of the friction surface decreases during the work of the knife and the entire lubricated area increases. By the turn of the Angle of the V-shaped boundary 8 of the gap 5 to the top 6, the lubrication on the highest tensioned section of the cutting - on the tip 6 of the tooth 5 - effectively flowed through.

In their cross-section, the gaps 7 (FIG. 9) are structurally U-shaped executed, whereby the method of their execution is simplified and the Lubrication in the gaps 7 during the longitudinal movements of the plate 1 during the Work of the knife is stopped.

The tips 6 of the teeth 5 and the cutting edge 2 on the part of their forehead (FIGS. 3, 6) are from the U-shaped interconnected grooves 9 of the edge of the Plate 1 is formed, thereby the effectiveness of the cutting edge 2 is increased. simultaneously are the tips 6 of the teeth 5 and their side surface 10 in the shape of the U-shaped Recesses 11 formed on the edge bevel 3 of the wide surface. 4 are the plate 1, thereby the cutting side surfaces of the teeth. 5 be formed.

To the flow of the lubricant in the wide surfaces 4 of the plate. 1 to exclude the chamfer 3 effectively form and the friction surfaces of the plate 1, the wide surfaces 4 of the plate 1 (Figs. 4, 5, 7, 8) are non-linear with the on the opposite and parallel axes in terms of Longitudinal axis of the plate 1 lying radius centers of the curvature executed. The Edge chamfer 3 of the wide surface 4 of the plate on which executed the gaps are formed by one of the odd surfaces of the plate 1.

In the case of the mutual arrangement of the teeth (FIG. 3), the cutting edge 2 and the teeth 5 are executed on two edges of the plate 1. For the sake of simplicity Manufacturing are the teeth 5 of an edge of the plate 1 with respect to the teeth 5 of moved to the other edge of the plate 1. The longitudinal axis of the teeth 5 of an edge of Plate 1 is at the same distance between the longitudinal axes of the teeth 5 of the other edge of the plate. 1

In the structural variants, the bevel 3 to the Both sides of the wide surfaces 4 of the plate 1 for the purpose of forming the cutting edge. 2 (FIGS. 4, 5, 7, 8). In the structural variants, the gaps 7 at the tips 6 of the teeth 5 on the edge bevels 3 of the two wide Surface 4 of the plate 1 (it is not shown on the Fig.) For the purpose of oil lubrication of both surfaces are executed. In this case, choose a smaller depth of Gaps 7 for the purpose of ensuring the required strength properties of Teeth 5.

As can be seen from Figs. 3-8, there is no obstacle to formation of the teeth 5 on the part of the two wide surfaces 4 of the plate 1 at one edge. But it leads to increase the bevel angle of the cutting edge 2, which increases the Forces can lead to cutting. Constructively, but the tooth 5 can the chamfers 3 of the two wide surfaces 4 of the plate 1 are formed.

When using the knife many advantages can be achieved, if the surfaces of the teeth 5 are formed only on one side of the plate 1. First, the Cutting edge 2 of the blade with odd-numbered wide surfaces 4 of the plate 1 during the Attrition of the substance to hone itself; Second, the knife may be part of the wide surface 4, which is free of teeth 5, can be sharpened effortlessly, without losing to have changed the shape of the teeth 5; third, the gaps 7 can be deep enough be formed, thereby improving the quality of lubrication, reduces the cost of the lubricant and increases the period of use the knife without relubrication; Fourth, reduces the effort in the Cutting dense and viscous substances.

For the sake of simplifying the execution of the knife under the Reservation of its above-mentioned advantages, the gaps 7 together in one common recess can be connected (Fig. 10, 11), extending along the cutting edge located after. The limit of common recess will be in this case executed serpentine. The lubricant is in this case on the teeth. 5 stopped by the serpentine shape of the common recess. The floor The snake-like recess is made uneven to the kalkiumverseifte or liquid lubricants on the cutting edge 2 in addition to stop.

For formation of tips 6 teeth 5 and a cutting edge 2 from their part Forehead are (Fig. 12) W-shaped interconnected grooves 12 of the edge the plate 1 used. In this case, the main tooth 5 and small teeth 13 educated.

The tips 6 of the teeth 5 and the side surfaces can by two oblique V-shaped recesses 14 are formed, which are located on the Edge bevel 3 of the wide surface 4 of the plate 1 zwichen the teeth. 5 located and narrowing in the direction of the longitudinal axis of the plate 1. In this Case, the teeth 5 are in their cross-section U-shaped (Fig. 15) designed to thereby their longitudinal axis are orthogonal to the longitudinal axis of the plate 1; the teeth should be after the surface of the cutting edge 2 protrude and their side surfaces are in the Extending direction of the longitudinal axis of the plate 1 (Fig. 12). As is apparent from Figs. 12-14 is apparent, is the boundary of the common recess (formed from the gaps 7) snake-like, and the bottom of the common recess is in this case specifically uneven, formed from the extended part of the tooth 5 and base the narrowed part of two oblique V-shaped recesses 14.

The wide surfaces 4 of the plate 1 (Fig. 12-14) can - as is the case in the case of separated gaps 7 (Fig. 3-8) is - curved with the on the opposite and parallel axes with respect to the longitudinal axis of the plate 1 lying radius centers of the curvature are executed (Fig. 13, 14). The called edge bevel 3 (at the common recess from the gaps 7 is formed) of the wide surface 4 of the plate 1 is by one of the curved Surfaces of the plate 1 formed. For the recess of the common recess is the Tip 6 of each tooth 5 (as well as each little tine 13) upward in terms of Surface of the cutting edge 2 is shifted and is located at angles α in the range of 2 ° to 7 ° with respect to the plane of symmetry of the curved broad surfaces 4 of Plate 1.

The cutting edge 2 and the teeth 5 can at two edges of the plate. 1 be executed (Fig. 12). The teeth 5 of an edge of the plate 1 are in terms of Teeth 5 of the other edge of the plate 1 is moved. The longitudinal axes of the teeth 5 an edge of the plate 1 are at the same distance between the longitudinal axes the teeth 5 of the other edge of the plate. 1

The operation of the knife (Figs. 16, 17) is as follows.

When cutting synthetic cover layers, plastics, rubber, Polymer materials, adhesive bonds worn on the teeth 5 with the gaps 7 or with the serpentine common recess on the lubricant (Fig. 1, 10). For longitudinal and transverse movements of the knife as well as in the interaction between the cutting edge 2 and the fabric 15 (Figures 16, 17), the lubrication dissipates all work surfaces of the teeth 5, flows from one gap 7 to another or between the parts of the serpentine common recess through, thereby is the flow of the lubricant to the non-working wide surfaces 4 of the Plate 1 excluded. Because the knife usually cuts moves in opposite directions with respect to its longitudinal axis, the Lubrication, flowed out of the gaps 7 in the neighboring gaps or from one Part of the serpentine common recess in another part, the Decline of plate 1 in the same gaps where it used to be, back. Of the Lubricating effort decreases and lubrication will take a long time function.

When cutting the food products, e.g. solid cheese, the teeth become 5 with the gaps 7 with the e.g. Smeared margarine or diet oil. The Cutting method is the same as above.

When cutting frozen products, lubrication can not can be applied because, for example, when cutting, of the meat the juice Separately moistening a cutting edge 2 and teeth 5. The juice flows into the Gaps 7 or in the serpentine common recess through, damp the Bevel 3 and moist effective during the overflow between the Gaps 7 all working surfaces.

The registered knife can be very cheap industrially for cutting various synthetic materials, polymer materials, rubber, plastics, various Adhesive bonds, e.g. in the chaining of the autoglass to the body, in the Food industry for cutting frozen or solid products, in construction for cutting synthetic parts or surface layers, in all technical Areas and in living conditions for cutting firmer, more resilient and viscous substances are needed.

1. Europäische Anmeldung Nr. 0760733, B 26 B 9/02, veröffentlicht am 03.06.98.

2. Internationale Anmeldung WO 96/32231, B 26 B 9/02, veröffentlicht am 17.10.96.

3. Patent USA Nr. 5572794. B 26 B 9/02, veröffentlicht am 12.11.96.

4. Patent USA Nr. 3279065. 30-355, veröffentlicht am 18.10.66.

5. Deutsche Anmeldung Nr. 3244550, B 26 B 9/02, veröffentlicht am 23.06.83.

information:

1. European Application No. 0760733, B 26 B 9/02, published 03.06.98.

2. International Application WO 96/32231, B 26 B 9/02, published 17.10.96.

3. Patent US No. 5572794. B 26 B 9/02, published 12.11.96.

4. Patent US No. 3279065. 30-355, published 18.10.66.

5. German Application No. 3244550, B 26 B 9/02, published Jun. 23, 1983.

Claims (15)

1. A knife comprising a plate (1), a cutting edge (2), which is provided at least at one border of the plate (1) with the formation of an edge bevel (3) of a wide plate face (4), teeth, which are executed at the cutting edge (2) by the formation of tips (6) for every tooth (5) and the opposite faces of which are connected to the opposite wide plate faces (4) of the plate (1),
      characterized by that
      the teeth (5) are provided with gaps (7) located at the tips (6) of the teeth (5) in some distance therefrom on the edge bevel (3) of the wide plate face (4).
2. The knife according to claim 1, characterized by that limits of a gap (7) are executed in a V-shaped manner on the edge bevel (3) of the wide plate face (4), that a longitudinal axis of the gap (7) extends along the length of a longitudinal axis of the tooth (5), and that the angle of the V-shaped limit of the gap (7) is directed towards the tip of the tooth (5).
3. The knife according to claim 1, characterized by that the gaps (7) have a U-shaped cross section.
4. The knife according to claim 1, characterized by that the tips (6) of the teeth (5) and the cutting edge (2) are executed at the front side from U-shaped grooves (9) of the plate edge connected to each other.
5. The knife according to claim 1, characterized by that the tips (6) of the teeth (5) and the side faces (10) of the teeth (5) are executed as U-shaped recesses (11) on the edge bevel (3) of the wide plate face (4).
6. The knife according to claim 1, characterized by that the wide plate faces (4) are curved (arched) with the radius centers being located on the opposite and parallel axes with regard to the longitudinal axis of the plate (1), and the said edge bevel (3), at which the gaps (7) are located, of the wide plate face (4) are formed by one of the curved plate faces (4).
7. The knife according to claim 1, characterized by that the cutting edge (2) is executed by the formation of the edge bevel (3) of the two wide plate faces (4).
8. The knife according to one of claims 1 to 8, characterized by that the gaps (7) at the tips (6) of the teeth (5) are located at the edge bevels of the two wide plate faces (4).
9. The knife according to claim 1, characterized by that the gaps (7) are connected to each other in a common recess extending along the longitudinal extension of the cutting edge (2), and that the limit of the common recess is configured in a serpentine way.
10. The knife according to claim 9, characterized by that a bottom of the serpentine recess is executed in an uneven way.
11. The knife according to claim 9, characterized by that the gaps (6) of the teeth (5) and the cutting edge (2) are formed at the front by the W-shaped grooves (12) of the plate edge connected to each other.
12. The knife according to claim 1, characterized by that the tips (6) of the teeth (5) and their side faces (10) are formed by two inclined V-shaped recesses (14), which are located on the edge bevel (3) of the wide plate face (4) between the teeth (5) and become narrower in the direction of the longitudinal axis of the plate (1).
13. The knife according to claim 12, characterized by that the teeth (5) have a U-shaped cross section, with their longitudinal axis being orthogonal to the longitudinal axis of the plate (1), and that the teeth (5) project from the face of the cutting edge (2), and their side faces (10) become wider in the direction of the longitudinal axis of the plate (1).
14. The knife according to claim 9, characterized by that the wide plate faces (4) are curved, with the radius centers of the curvature being located on the opposite and parallel axes with regard to the longitudinal axis of the plate (1), wherein the said edge bevel (3), at which the common recess (11) is provided, of the wide plate face (4) is formed by one of the curved plate faces (4), and the tip (6) of every tooth (5) is displaced towards top with regard to the face of the cutting edge (2), and is at an angle α being between 2° and 7° relative to the plane of symmetry of the curved plate face (4).
15. The knife according to claim 1 or 14, characterized by that the cutting edge (2) and the teeth (5) are provided at two edges of the plate (1), that the teeth (5) of one edge of the plate (1) are displaced with regard to the teeth (5) of the other edge of the plate (1), the longitudinal axes of the teeth (5) of one plate edge being positioned centrally between the longitudinal axes of the other plate edge.

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