EP3299135B1 - Cutting blade - Google Patents

Description

The present invention relates to a cutting element according to claim 1, a knife holder according to claim 2 and a cutting knife according to claim 7.

From the DE 10 2012 007013 A1 a cutting element is known for a cutting blade for a machine for slicing food products, in particular high-speed slicers, the cutting element being designed in the shape of a part ring or ring, having a cutting edge pointing radially outwards on its outer circumference and a fixing area on its inner circumference for fastening the cutting element to a carrier has, seen in the circumferential direction of the fixing area has a plurality of radial recesses to the outside. From the DE 10 2012 007013 A1 a knife holder is also known for a cutting knife for a machine for slicing food products, in particular high-speed slicers, wherein the knife holder is designed as a carrier for a cutting element, the carrier having a fastening area on its outer circumference, on which for fastening the cutting element to the carrier the inner circumference of the cutting element is releasably fastened, wherein viewed in the circumferential direction the fastening area has a plurality of mutually offset and radially outwardly directed projections, with an in particular peripheral collar being arranged on the outer circumference of the fastening area, which is a support and/or contact surface for the fixing area forms.

A cutting blade is out DE 20 2009 017 954 U1 known.

The object of the present invention is to provide a cutting element and a knife holder for a machine for slicing food products, which is easy to handle and has improved properties during the slicing operation.

The object is achieved by a cutting edge element and a knife holder having the features of claims 1 and 2 .

In the case of the cutting knife according to the invention, one or more projections directed radially outwards are provided on the carrier side and recesses associated with the projections on the side of the cutting element. The carrier and the cutting element are therefore not in the same position as in the case of the one mentioned at the outset DE 20 2009 017 954 U1 along arc-like edges, which essentially have a uniform distance from the cutting edge, but the distance between the outer circumference of the carrier and the inner circumference of the cutting element to the cutting edge varies due to the projections and recesses. Because of the projection or projections, the carrier or its fastening area therefore has a course with changing radial extent. The same applies to the cutting element or its fixing area due to the recesses.

The recesses can be viewed as indentations or indentations running radially outwards in the fixing area, between which there are projections running radially inwards, which form radially inner sections of the fixing area, on which the cutting element is preferably fixed on the carrier.

The assignment of the projections and recesses is in particular such that when the blade element is fixed to the carrier as intended, a respective projection engages in the assigned recess. As a result, the cutting knife has a rigid structure or construction, which has an advantageous effect during the slicing operation.

Since the cutting element can be detached from the carrier, the cutting knife according to the invention is easier to handle, since, for example, in the event of a knife change, the cutting element can be removed from the carrier while the carrier can remain on the slicing machine. The removed cutting element can, for example, be reground and then attached to the carrier again. Alternatively, the removed cutting element can be replaced with a new cutting element.

Since only the cutting element has to be removed, a knife change can be carried out relatively easily by one person due to the weight saving achieved. This is particularly relevant against the background that ever greater cutting performances are to be achieved in connection with the operation of high-performance slicers. This leads to the cutting of several products next to each other and thus to wide cutting shafts and ever larger cutting knives. This has a particular effect on machine concepts with sickle knives, because these only rotate around one axis of rotation and have to cover the working angle range with the course of the cutting edges. The sickle knives are thus tending to become larger and larger. The cutting edges of sickle knives are getting bigger and bigger radii and are also getting narrower. Handling by just one person, for example when changing a blade, may therefore reach its limits, particularly when a conventional, one-piece sickle blade has to be replaced.

The central support can be attached to the cutter head of a slicing machine by means of connections known from the prior art. The carrier can be seen as a kind of adapter plate that can remain on the cutter head. The carrier or its outer circumference specifies the dimensioning for the inner circumference of the cutting element. Different cutting elements with different dimensions can be attached to the carrier cutting are arranged. Different blade sizes can therefore be implemented.

A suitable grinding and/or sharpening device can have a corresponding central carrier in order to machine a cutting edge element.

Since very high rotational speeds of the cutting knife can occur during the slicing operation, the carrier and the cutting element preferably form a balanced unit.

The outer circumference of the fastening area of the carrier preferably forms at least approximately a corrugated contour along the projections and the inner circumference of the fixing area of the cutting element forms a complementary corrugated contour along the recesses, in particular running radially outwards and flush with the corrugated contour of the projections. The corrugated contours result in a favorable stress profile with regard to the attachment of the cutting element to the carrier and with regard to the stresses to which the cutting knife is exposed during cutting operation. Furthermore, the corrugated contours can be easily produced in terms of manufacturing technology, since corners are avoided. Also included according to the invention are jagged contours, which can then also have a wave-like design, but have no or only small radii.

Seen in the circumferential direction, the projections and the recesses can run over an angular range that corresponds at least approximately to the angular range over which the cutting edge extends. In the angular range in which a product can be severed by means of the cutting edge and which is also referred to as the working angle range, the cutting blade therefore has a high degree of rigidity due to the projections and recesses provided there, which is advantageous for the slicing operation. The one opposite Working angle range The remaining angle range is referred to as the clearance angle range.

The fastening area preferably has an arcuate contour in the remaining angle area, ie at least approximately in the clearance angle area. A straight line or any other connection geometries are also included as a contour in the clearance angle area. The cutting element can therefore completely surround the support and thus has a closed outer contour, which increases the stability and torsional rigidity of the cutting element. This not only offers advantages during the slicing operation, but also during the production and processing of the cutting element, for example in a grinding machine.

Alternatively, the blade element can have an interruption in a region outside the extension of the blade. The cutting element thus does not completely surround the carrier, but it can be designed in the form of a partial ring with an interruption. This allows savings in material and weight to be achieved.

In particular, the cutting element can form a segment over approximately two-thirds to three-fourths of the circumference of the outer edge of the carrier, viewed in the circumferential direction.

In the case of an interrupted cutting element, an outer, radial projection of the fastening area, viewed in the circumferential direction, preferably protrudes into the edge area of the cutting element. Good support and force transmission can thus be ensured in the edge area.

A circumferential collar is preferably arranged on the outer circumference of the fastening area, which collar forms a bearing and/or contact surface for the fixing area forms. The collar can extend continuously along the outer circumference or have one or more interruptions.

In particular, the collar protrudes outward beyond the outer circumference of the fastening area, viewed in the radial direction, so that the fixing area can be placed on the collar or brought into contact with the collar.

A step is preferably formed between the outer circumference of the fastening area and the collar. Seen in the axial direction, the height of the step preferably corresponds at least approximately to the thickness of the cutting element on the inner circumference. The cutting element and the carrier can therefore form a substantially smooth surface when the fixing area of the cutting element is arranged in the step, resting on the collar.

The fastening area, in particular on the collar, preferably has at least one and preferably several fastening devices which are offset from one another in the circumferential direction, in particular screwing points or the like, for fastening the cutting element. The cutting element can thus be securely fastened to the carrier.

The fastening devices can interact with associated fixing devices on the cutting element in order to fasten the cutting element on the carrier.

The fastening devices and in particular the screwing points can be arranged and designed in such a way that, in combination with the collar or the projections and recesses, they allow improved and preferably optimized absorption of the forces acting on the cutting element during the slicing operation. The torsional rigidity of the cutting blade can thus be improved.

The fastening devices can be provided at least essentially only within the angular range which corresponds to the angular range over which the cutting edge extends. The fastening devices can therefore only be located in the working angle area of the cutting blade, while the clearance angle area is free of fastening devices.

Between two adjacent projections of the fastening area of the carrier, the collar forms a respective fastening section with at least one fastening device. The fixing area of the cutting element or a section of the fixing area which engages between the adjacent projections and protrudes radially inwards can be attached to the attachment section of the collar by means of the attachment device. The respective fixing area section can extend radially inwards between two recesses on the blade element, so that the fixing area section protrudes into a respective indentation or indentation between the two projections on the carrier.

The respective fixing area section of the cutting element can thus be placed on the fastening section formed by the collar between the projections and fastened there. Since the collar runs along the outer circumference of the attachment area, the fixing area section can rest not only on the collar in the area of the attachment section, but also on the radially outer area of the collar that extends along the projections. Since the projections preferably form a wavy contour, the fixing area section of the cutting element can thus rest on the collar extending approximately in a U-shape between the projections and can also be fixed relatively far radially inwards on the fastening section of the collar. Depending on the contour of the projections and depending on the course of the federal government along the In addition to projections, the collar can also form a V-shaped or differently shaped contact surface for a respective fixing area section.

In conjunction with the possibility of attaching the fixing area sections to the collar, a structure results that allows cutting forces to be absorbed in an improved manner, which act on the cutting element particularly in the axial direction during the slicing operation. The cutting forces act as pressure forces particularly strongly in the area of the radial projections of the fastening area of the carrier and press the radially inner edge of the cutting element onto the collar there. At the same time as this compressive stress, tensile stresses arise at the attachment points during the cutting operation. The fixing area section of the blade element, which protrudes relatively far radially inwards, would therefore lift off the collar. Fixing the fixing area section on the carrier by means of a respective fastening device counteracts this. The tensile forces can therefore be absorbed at the attachment points and transferred to the carrier.

The interlocking projections and recesses of the carrier or the cutting element and the collar projecting radially outwards from the outer circumference of the fastening area can create a special design of the outer circumference of the carrier or the inner circumference of the cutting element which at least approximately has the shape of rows of e.g. U-shaped segments. The axially acting cutting forces can be well absorbed via the respective relatively wide radial zone formed by the segments. As a result, the cutting blade is particularly stable and has a high torsional rigidity during the slicing operation. The cutting quality is correspondingly high due to the minimized blade deformation.

Preferably, the fastening devices are at least approximately on a radius that is closer to a radially innermost point of the outer circumference of a lying between the two projections indentation of the fastening area is than at the radially outermost points of the two projections. The axial tensile forces occurring on the cutting element during the cutting process can thus be well absorbed by the fastening devices and transmitted radially inwards to the carrier.

Alternatively, a respective fastening device can lie at least approximately on a mean radius which lies between the radius on which the radially innermost point of the indentation lies and the radii on which the radially outermost points of the two projections lie. A good absorption of the tensile forces acting on the cutting element during the slicing process is thereby possible.

The fastening devices can be located at least approximately on a radius which, measured from the cutting edge, corresponds at least approximately to a quarter to a third of the cutting edge radius. The position of the fastening devices is thus adapted to the course of the cutting edge. In addition, the tensile forces occurring during cutting operation can be easily absorbed by the fastening devices and transferred to the carrier.

According to a preferred embodiment of the invention, the fixing area has fixing devices that correspond to the fixing devices. A respective fixing device can be provided on a respective fixing area section protruding radially inwards. The fixing device can interact with a respective fastening device on the fastening sections of the collar lying between the projections in order to fasten the cutting element on the carrier.

The fixing devices on the cutting element are designed as through holes, in particular bores, while the fastening devices are preferably designed as threaded bolts or the like on the carrier, so that the cutting element can be placed on the carrier in such a way that the threaded bolts protrude through the through-holes. Nuts can then be screwed onto the threaded bolts in order to fix the cutting element on the carrier. A precise positioning of the cutting element on the carrier can be achieved in this way.

In an alternative embodiment, the fastening devices on the carrier can be designed as threaded bores. The cutting element can be detachably fastened to the carrier by means of screws.

The fastening devices and/or fixing devices can also be formed by, in particular, automatic or semi-automatic clamping devices. A clamping device can be a quick-release clamp that is spring-loaded and/or can be actuated pneumatically.

Preferably, three to ten, in particular five or six, fastening devices and corresponding fixing devices are provided on the carrier or cutting element, distributed over the circumference. With a total of six fastening devices, four fastening points are preferably arranged equidistant to the cutting edge. The other two attachment points are further out in the radial direction and thus closer to the cutting edge. The deviations can be caused by the installation space and a balancing mass on the cutting blade in order to balance the cutting blade.

According to a preferred embodiment of the invention, each of the projections has a radially outermost point, the distances between the radially outermost points of all projections and the cutting edge being at least approximately the same. This has an advantageous effect on the torsional rigidity of the cutting blade. The respective distance, measured from the cutting edge, can be at least approximately one correspond to a quarter to a fifth of the cutting edge radius. This can contribute to achieving a high torsional rigidity of the cutting blade. In addition, there is a compact dimensioning for the cutting element, which improves its handling.

According to a preferred development of the invention, between each two adjacent projections there is an indentation of the fastening section, located in particular behind the collar, the outer circumference of which has a respective radially innermost point, with the distances between the radially innermost points of all indentations and the are at least approximately the same size. This can also contribute to achieving high torsional rigidity of the cutting knife and compact dimensions for the cutting element can be achieved.

A solid zone and/or a balancing mass, which forms an elevation, can be arranged on one side of the carrier. The balancing mass can be an accumulation of mass. The solid zone and/or the compensating mass can be provided for balancing the cutting blade and can be dimensioned accordingly.

The surface of the support side may extend at least partially between the outer perimeter of the attachment area and the edge of the top of the solid zone. As a result, a closed surface can be formed between the outer circumference of the fastening area and the solid zone.

The surface preferably has a wavy three-dimensional contour. The shape of the surface can improve the stability and torsional rigidity of the cutting blade. Also included according to the invention are jagged contours, which can then also have a wave-like design, but have no or only small radii.

The surface is preferably formed at least in regions in such a way that a connecting line runs from every point of at least one section of the outer circumference to the edge of the upper side. In particular, the respective connecting line can run in the radial direction towards the axis of rotation of the cutting blade. A three-dimensional geometry results, which improves the stability and torsional rigidity of the cutting blade.

The greatest material thickness can be present in the massive zone due to the necessary balancing masses. Starting from there, each point along the repeatedly changing radial extent of the fastening area, in particular its corner area, can be connected in a radiating manner with a uniform material thickness on the outer circumference. The different distances and thus lines of different lengths result in a slightly wavy surface contour along the circumference. This is relatively flat in the run-out area of the cutting edge, i.e. at the largest cutting edge radius, and relatively steep towards the starting area of the cutting edge, i.e. at the smallest cutting edge radius. The connection between each point along the multiple changing radial extent of the attachment area and the massive central area can not only be understood as a straight line, but as part of a three-dimensional surface contour. The imaginary connecting line can - at least on partial sections - also run through a calculated variation in thickness or increase in cross-section in a stepped or curved manner, based on the plane of the cutting edge. The respective line can thus have a straight, stepped or curved course.

The surface may be formed by a thin wall with an optionally filled cavity formed between the wall and the opposite side of the carrier. The cavity can be sealed, evacuated or filled with inert gas or another filling material such as light metal, foam material, Metal foam material, or be filled with a fluid. Alternatively, the area between the surface and the opposite wall of the carrier can be solid.

The particularly wavy surface can be connected to the opposite wall at the outer edge. The opposite wall can form a kind of rear base plate for the wearer. A connection device for attaching the cutting blade to a slicing machine can also be arranged on the wall. In addition, the wall can have cutouts for weight optimization and/or balancing pockets.

The cutting blade can be not only a sickle blade, but also a circular blade.

The radial direction means in particular a radial direction running away from the axis of rotation of the cutting blade. The axial direction means in particular a direction running along the axis of rotation.

The cutting knife according to the invention creates an easy-to-handle knife, in particular a sickle-shaped knife, for high-performance slicing machines. A simple knife change, even by just one person, is possible. Only the cutting element, which can be regarded as part or functional element of the knife, has to be detached, while the carrier, which can be regarded as receiving element for the cutting element, can remain on the cutting head. An optimization of the cutting result due to the stiff construction of the blade and an optimization of the flexural rigidity in the blade area under load in the slicing operation can be achieved due to the shape of the carrier and the blade element. The knife can also be made quite easily. Furthermore, a fixed connection of the blade element to the carrier is possible. Several planned pressure points in the Attachment area can compensate well for tolerances between the cutting element and the carrier. The cutting blade is very stable due to a wave-shaped design in the fastening area and the fastening over a relatively wide radial zone. Operating forces acting on the cutting edge in an axial direction are well absorbed thanks to the improved rigidity. A high level of assembly safety through precise positioning that is clear to an operator at all interfaces can be easily achieved. In addition, a mass balance on the front of the knife can be achieved through the massive zone. Of course, this can also be combined with masses on the back of the knife. Balancing masses provided on the carrier no longer have to be dismantled, but can remain on the cutter head with the carrier.

Fig. 1

eine perspektivische Ansicht einer Vorderseite eines erfindungsgemäßen Schneidmessers,

Fig. 2

eine Draufsicht auf die Vorderseite des Schneidmessers von Fig. 1,

Fig. 3

das Schneidmesser von Fig. 1 in einer geschnittenen perspektivischen Darstellung,

Fig. 4

eine perspektivische Ansicht der in den Fig. 1 bis 3 sichtbaren Vorderseite des Schneidenelements des Schneidmessers,

Fig. 5

eine perspektivische Ansicht der Rückseite des Schneidenelements, und

Fig. 6

eine perspektivische Ansicht der in den Fig. 1 bis 3 sichtbaren Vorderseite des zentralen Trägers des Schneidmessers.

The invention is described below by way of example using an advantageous embodiment and with reference to the attached figures. They show, each schematically,

1

a perspective view of a front side of a cutting blade according to the invention,

2

FIG. 12 is a plan view of the front of the cutting blade of FIG 1 ,

3

the cutting knife of 1 in a cut perspective view,

4

a perspective view of in the Figures 1 to 3 visible front of the cutting element of the cutting knife,

figure 5

a perspective view of the rear of the blade element, and

6

a perspective view of in the Figures 1 to 3 visible front of the central support of the cutting blade.

The illustrated slicing blade 11 includes a central support 13 for attachment of the slicing blade 11 to a food product slicing machine, also known as a high speed slicer. The connection devices for attaching the cutting blade 11 to the slicing machine are arranged on the rear side of the carrier 13, which is not shown. With these connecting devices, the cutting blade 11 can be used in a manner known per se wise attach to the slicer so that it is around its in 1 axis of rotation D shown as an example can rotate.

The cutting knife 11 comprises a ring-shaped cutting element 15 which has a radially outwardly pointing cutting edge 17 on its outer circumference. The axis of rotation D runs perpendicular to the plane in which the cutting edge 17 extends.

The cutting element 15 is detachably fastened to the carrier 13 . The carrier 13 has a fastening area 19 on its outer circumference, to which a fixing area 21 formed on the inner circumference of the cutting element 15 is releasably attached or can be attached in order to attach the cutting element 15 to the carrier 13 . More precisely--seen in the circumferential direction U--the fastening region 19 of the carrier 13 has a plurality of projections 23 which are offset relative to one another and are directed radially outwards. The fixing region 21 has recesses 25 which are designed to be complementary to the projections 23 and are offset from one another in the circumferential direction U, to which the projections 23 are assigned. When the cutting element 15 is attached to the carrier 13 as intended, as in 1 as can be seen, a respective projection 23 fits into the respective associated recess 25.

The outer circumference of the fastening area 19 has at least approximately a corrugated contour along the projections 23 . The inner circumference of the cutting element 17 also has, along the recesses 25, a complementary corrugated contour which runs radially outwards and is flush with the corrugated contour of the projections 23, such as FIG 1 shows. The fastening area 19 of the carrier 13 therefore has a profile with a multiple changing radial extent, seen at least over a part along its outer circumference, due to the projections 23 .

Viewed in the circumferential direction U, the projections 23 and the recesses 25 extend over an angular range W1 which at least approximately corresponds to the angular range W2 over which the cutting edge 17 extends and which thus at least approximately corresponds to the working angle range of the cutting blade 11 (cf. 2 ). In the remaining angular range, which corresponds at least approximately to the clearance angle range of the cutting blade 11, the fastening area 19 has an arcuate contour 51 at least approximately.

As shown, the cutting element 15 completely surrounds the carrier 13, so that the basic shape of the cutting element 15 is designed in the manner of a closed ring. Alternatively, however, the cutting element 15 can also have an interruption in a region outside the extension of the cutting edge 17 seen in the circumferential direction U, so that the basic shape of the cutting element 15 can be partially ring-shaped (not shown). Material can be saved as a result of the interruption, while a closed cutting edge element 15 is more stable.

On the outer circumference of the fastening area 19 there is a circumferential collar 27 (cf. 6 ) arranged, which forms a support and / or contact surface for the fixing area 21 of the cutting element 15. The radially inner section of the fixing area 21 or the cutting element 15 can thus be separated from the in 6 be brought to rest on the collar 27 seen from the front above.

It is advantageous if, how 6 shows, between the outer circumference of the fastening area 19 and the collar 27 a step 29 is formed. The height of the step 29 is preferably chosen so that it corresponds at least approximately to the thickness of the cutting element 15 on the inner circumference, so that a substantially smooth surface can be realized in the transition area between the cutting element 15 and the carrier 13 .

Between two adjacent projections 23, the collar 27 forms a respective fastening section 33, on which a respective fastening device 31 is arranged (cf. 6 ). In order to form a respective fastening section 33 in the form of a bearing surface, the collar 27 is widened, viewed in the radial direction, in relation to the remaining collar 27, which does not form a fastening section 33.

Seen in the circumferential direction U, the fastening devices 31 are offset from one another. According to the example shown, the fastening devices 31 are stud bolts with an external thread. In the 6 Nuts shown can be removed to attach blade member 15. The fastening devices 31 can also be a respective screw-on point in order to be able to fasten the cutting element 15 in a thread on the carrier 13 by means of screws.

The fixing area 21 has fixing devices corresponding to the fastening devices 31 , which are bores 35 in the example shown. A respective bore 35 is formed at a fixing area portion 37 which, like the 4 and 5 show, between two adjacent recesses 25 protrudes radially inwards.

To attach the cutting element 15 to the carrier 13, the figure 5 shown rear side of the cutting element 15 in 6 shown facing front of the carrier 13 and the cutting element 15 is placed on the carrier 13 in this orientation. The studs 31 take on the bores 35 . The nuts are then screwed onto the stud bolts 31 in order to fix the cutting element 15 to the carrier 13 .

When the cutting element 15 is fastened to the carrier 13, the fixing region section 37 of the cutting element 15 that protrudes into the indentation between two projections 23 of the carrier 13 is located, as can be seen in particular from the synopsis of FIGS Figures 5 and 6 as can be seen, on the fastening section 33 formed by the collar 27 between the projections 23 and is fastened there. Since the collar 27 runs along the outer circumference of the attachment area 19, the respective fixing area section 37 not only rests on the collar 27 in the area of the attachment section 33, but also on the radially outer area of the collar 27, which extends along the projections 23 extends.

Due to the corrugated contour of the projections 23, the collar 27 forms an approximately U-shaped bearing surface for a respective fixing region section 37. In connection with the attachment of the fixing area sections 37 to the collar 27, a structure results for the cutting knife 11 which allows the absorption of cutting forces acting axially on the cutting element 15 in an improved manner. These act as compressive forces particularly strongly in the area of the radial projections 23 of the attachment area 19 of the carrier 13 and press the radially inner edge of the cutting element 15 onto the collar 27 there 31 Tensile stresses that are absorbed by the attachment points and transferred to the carrier 13.

The interlocking projections 23 and recesses 25 of the carrier 13 or cutter element 15 and the collar 27 projecting radially outwards from the outer circumference of the fastening area 19 result in a design of the outer circumference of the carrier 13 or the inner circumference of the cutter element 15 which at least approximately Has the form of consecutive U-shaped segments. About the respective formed by the segments relatively wide radial connection zone, the axially acting cutting forces can be well absorbed. As a result, the cutting blade 11 becomes stable and has a high torsional rigidity during the slicing operation. The cutting quality is correspondingly high due to the minimized blade deformation. In the example shown, the fastening devices 31 are provided at least essentially only within the angular range W1, which corresponds to the angular range W2 over which the cutting edge 17 extends, as seen in the circumferential direction U.

As for example from the synopsis of 1 and 6 As can be seen, a respective fastening device 31 lies at least approximately on a radius, based on a radial direction starting from the axis of rotation D, which is closer to a radially innermost point P (cf. 6 ) of the outer circumference of an indentation of the fastening area 19 located between two respective projections 23 than at the radially outermost points Q (cf. 6 ) of the protrusions 25.

Alternatively, a respective fastening device 31 can be at least approximately on a mean radius between the radius on which the radially innermost point P of the bulge lies and the radii on which the radially outermost points Q of the two adjacent projections 23 lie.

The fastening devices 19 lie at least approximately on a radius which—measured from the cutting edge 17—corresponds at least approximately to a quarter to a third of the cutting edge radius. The position of the fastening devices 19 can therefore be adapted to the shape of the cutting edge 17 .

The distances between the radially outermost points Q of all projections 23 and the cutting edge 17 can be at least essentially the same. The respective distance, measured from the cutting edge 17, preferably corresponds to at least approximately one fourth to one fifth of the cutting edge radius. The distances P of the radially at furthest inner points P of all indentations to the cutting edge 17 can also be at least approximately the same size.

A solid zone 39, which can also be a balancing mass, is arranged on the front side of the carrier 13 and forms an elevation.

The surface 43 of the carrier 13 forming the front side runs between the outer periphery of the attachment area 19 and the edge 41 of the top of the solid zone 39. The surface 43 is formed in such a way that from each point of the outer periphery a connecting line 45 to the edge 41 of the top of the solid Zone 39 runs. Due to the different lengths of the connecting lines 45, a wavy three-dimensional surface 43 results.

The surface 43 is formed by a thin wall. An optionally filled cavity 49 is formed between the wall and the opposite rear side 47 of the carrier 13 (cf. 3 ). However, this area can also be solid.

Reference List

11

cutting knife

13

carrier

15

cutting element

17

cutting edge

19

mounting area

21

fusing area

23

head Start

25

return

27

Federation

29

Step

31

fastening device

33

attachment section

35

fixing device

37

fusing area section

39

massive zone

41

edge

43

surface

45

connecting line

47

back

49

cavity

51

arc contour

Claims (15)

1. A cutting element for a cutting blade (11) for a machine for slicing food products, in particular a high-speed slicer, wherein the cutting element (15) is of part ring shape or ring shape, has a radially outwardly facing cutting edge (17) at its outer periphery and has a fixing region (21) at its inner periphery for fastening the cutting element (15) to a carrier (13),

   wherein, viewed in the peripheral direction (U), the fixing region (21) has a plurality of radial outward recesses (25), and

   wherein the fixing region (21) has, between adjacent recesses (25), a respective fixing region section (37) which projects radially inwardly with respect to the recesses (25) and which has a respective fixing device (35) which is formed as a passage hole, in particular a bore, for fastening the cutting element (15) to the carrier (13).
2. A blade mount for a cutting blade (11) for a machine for slicing food products, in particular a high-speed slicer,

   wherein the blade mount is configured as a carrier (13) for a cutting element (15) in accordance with claim 1,

   wherein the carrier (13) has, at its outer periphery, a fastening region (19) to which the fixing region (21), which is formed at the inner periphery of the cutting element (15), is releasably fastened for fastening the cutting element (15) to the carrier (13),

   wherein, viewed in the peripheral direction (U), the fastening region (19) has a plurality of projections (23) which are formed offset from one another and which are directed radially outwardly,

   wherein a collar (27), in particular a peripheral collar (27), is arranged at the outer periphery of the fastening region (19) and forms a support surface and/or a contact surface for the fixing region (21) and the fastening region (19) has, at the collar (27), a plurality of fastening devices (31), which are disposed offset from one another in the peripheral direction (U) and

   which are configured as screw-on points, in particular as threaded bolts for cooperating with nuts or as threaded bores for cooperating with screws, for fastening the cutting element (15) to the blade mount, and

   wherein the collar (27) forms a respective fastening section (33) comprising a fastening device (31) between two adjacent projections (23).
3. A blade mount in accordance with claim 2,
   wherein a step (29) is formed between the outer periphery of the fastening region (19) and the collar (27).
4. A blade mount in accordance with claim 2 or claim 3,

   wherein the fastening devices (31) each lie at least approximately on a radius which is closer to a radially innermost point (P) of the outer periphery of an indentation of the fastening region (19) disposed between the two projections (23) than to the radially outermost points (Q) of the projections (23), or

   wherein the fastening devices (31) each lie at least approximately on a central radius between the radius on which the radially innermost point (P) of the indentation lies and the radii on which the radially outermost points (Q) of the two projections (23) lie.
5. A blade mount in accordance with any one of the claims 2 to 4,

   wherein a solid zone (39) and/or a compensation mass which forms/from an elevated portion is/are arranged at a side of the carrier (13), wherein in particular

   the surface (43) of the carrier side extends at least regionally between the outer periphery of the fastening region (19) and the edge (41) of the upper side, preferably flat upper side, of the solid zone (39), wherein the surface (43) in particular has a wave-shaped contour, wherein in particular the surface (43) is formed at least regionally such that a connection line (45) extends from each point of at least one section of the outer periphery to the edge (41) of the upper side,

   wherein, preferably, the respective connection line (45) extends in the radial direction towards the axis of rotation (D) of the cutting blade (11), and/or wherein, preferably, the respective line (45) has a straight, step-shaped or arcuate course.
6. A blade mount in accordance with claim 5,

   wherein the surface (43) is formed by a thin wall, wherein a selectively filled hollow space (49) is formed between the wall and the oppositely disposed side of the carrier (13), or

   wherein the region between the surface (43) and the oppositely disposed wall of the carrier (13) is solid.
7. A cutting blade, in particular a scythe-like blade, for a machine for slicing food products, in particular a high-speed slicer, comprising

   a central carrier (13) for fastening the cutting blade (11) to the machine, said central carrier (13) being formed by a blade mount in accordance with any one of the claims 2 to 6, and

   a cutting element (15) in accordance with claim 1,

   wherein the recesses (25) are provided complementary to the projections (23), wherein the projections (23) are associated with the recesses (25).
8. A cutting blade in accordance with claim 7,
   wherein the outer periphery of the fastening region (19) along the projections (23) at least approximately forms a wave contour and the inner periphery of the cutting element (15) forms a complementary wave contour along the recesses (25), said wave contour in particular extending radially outside and being flush with the wave contour of the projections (23) of the carrier (13).
9. A cutting blade in accordance with claim 7 or claim 8,

   wherein, viewed in the peripheral direction (U), the projections (23) and the recesses (25) extend over an angular region (W1) which at least approximately corresponds to the angular region (W2) over which the cutting edge (17) extends, wherein in particular

   the fastening region (19) has an arcuate contour (51) in the remaining angular region.
10. A cutting blade in accordance with any one of the claims 7 to 9,
    wherein the cutting element (15) completely surrounds the carrier (13) or has an interruption in a region outside the extent of the cutting edge (17), viewed in the peripheral direction (U).
11. A cutting blade in accordance with any one of the claims 7 to 10,
    wherein the fastening devices (31) are provided at least substantially only within the angular region which corresponds to the angular region over which the cutting edge (17) extends.
12. A cutting blade in accordance with any one of the claims 7 to 11,
    wherein the fastening devices (31) lie at least approximately on a radius which, measured from the cutting edge (17), at least approximately corresponds to a quarter up to a third of the cutting edge radius, in particular with respect to the center of rotation of the cutting blade.
13. A cutting blade in accordance with any one of the claims 7 to 12,
    wherein the fixing devices (35) correspond to the fastening devices (31).
14. A cutting blade in accordance with any one of the claims 7 to 13,

    wherein each of the projections (23) has a radially outermost point (Q),

    wherein the spacings of the radially outermost points (Q) of all the projections (23) from the cutting edge (17) are at least approximately equal, wherein in particular

    the respective spacing, measured from the cutting edge (17), at least approximately corresponds to a quarter up to a fifth of the cutting edge radius.
15. A cutting blade in accordance with any one of the claims 7 to 14,
    wherein, between every two adjacent projections (23), there is an indentation of the fastening section (33) which is in particular disposed behind the collar (27) and whose outer periphery has a respective radially innermost point (P), wherein the spacings of the radially innermost points (P) of all the indentations from the cutting edge (17) are at least approximately equal.

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