EP3053713B1 - Disque de coupe - Google Patents

Disque de coupe Download PDF

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Publication number
EP3053713B1
EP3053713B1 EP16150510.2A EP16150510A EP3053713B1 EP 3053713 B1 EP3053713 B1 EP 3053713B1 EP 16150510 A EP16150510 A EP 16150510A EP 3053713 B1 EP3053713 B1 EP 3053713B1
Authority
EP
European Patent Office
Prior art keywords
cutting edge
cutting
radius
angle
edge section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16150510.2A
Other languages
German (de)
English (en)
Other versions
EP3053713A1 (fr
Inventor
Henri Orbanic
Marko ZILNIK
Stanislav Mazej
Toni Pogacar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to SI201630242T priority Critical patent/SI3053713T1/sl
Publication of EP3053713A1 publication Critical patent/EP3053713A1/fr
Application granted granted Critical
Publication of EP3053713B1 publication Critical patent/EP3053713B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers

Definitions

  • the present invention relates to a cutting disc for a food processor, the cutting disc having a substantially planar base disc and at least one cutting edge extending from an inner circle having an inner radius to an outer radius with a cutting edge spaced from the base disc.
  • Cutting discs of the type indicated above are known from food processors. Geometrically, the cutting discs are generally circular and substantially planar objects. Slight deviations from the plane are for example in connection with reinforced edges, inner coupling elements for the drive and embossing of the base disk. A cutting edge of the cutting wheel is arranged so that the cutting edge is spaced from the base disk. In one example, the cutting edge protrudes from the plane of the base disk. In another example, the cutting edge is in the plane of the base disk and the base disk is lowered in front of the cutting edge. There is always a slot in front of the cutting edge through which slices of cut material are removed when the cutting disc is used.
  • the cutting discs often use cutting with straight cutting edges or with cutting edges that are convexly curved in a plan view of the cutting disc.
  • Convex convex in this context means that a connecting line between the radially inner end of the cutting edge and the radially outer end of the cutting edge is in the direction of movement of the cutting disc under normal use behind the cutting edge.
  • concave means that the cutting edge is located behind the bond line between the radially inner end of the cutting edge and the radially outer end of the cutting edge. From the food processor "Kennwood and the generic GB-A-2482909 are also known sensually concave curved cutting edges. At acquaintances Cutting discs is the cut quality, especially in soft clippings, such as meat, salami or ham, by plastic or elastic deformation of the cuttings in the vicinity of the cut surface partially not optimal and correspondingly better.
  • a cutting disc of the type indicated above which is characterized in that the cutting edge is divided into at least two differently oriented or differently curved cutting edge sections, wherein between the inner radius and a middle radius, an inner cutting edge portion and between the middle Radius and the outer radius of an outer cutting edge portion are both aligned as trailing cutting edge portions or both as leading cutting edge portions, wherein at trailing cutting edge portions on the cutting edge, the average radius is in a direction of movement of the cutting disc behind the inner radius and behind the outer radius, so a concave cutting edge is formed, and wherein at leading cutting edge portions on the cutting edge, the average radius is in a direction of movement of the cutting wheel in front of the inner radius and in front of the outer radius, so that a convex cutting edge is formed.
  • the cutting discs according to the invention thus have cutting edges divided into different cutting edge sections.
  • the differences in the cutting edge portions may exist in two straight cutting edge portions in different orientations of these cutting edge portions within the plane of rotation or in two curved cutting edge portions in different curvature types.
  • Different types of curvature are, for example, circular curvatures and spiral curvatures.
  • the attribute "concave” stands for all types of indentations and indentations in which the center of the cutting edge is set back relative to the cutting edge edges in the direction of movement of the cutting disc.
  • the attribute "convex” correspondingly stands for all cutting edges with a protruding central cutting edge region.
  • Concave cutting edges and a connecting line between the inner cutting edge end and the outer cutting edge end include a surface, hereinafter referred to as a follower surface. Both adjoining cutting edges are arranged trailing, that is, in the direction of movement, the inner cutting edge end and the outer cutting edge end are located further forward than the cutting edge in its further course.
  • the clippings are in the tracking surface and is urged by the trailing cutting edges not to the inner or outer radius but to a medium radius. It was surprisingly found a very good cut result.
  • a pointed projection of a convex cutting edge leads to a good penetration of the cutting edge in the clippings and it is achieved a very good cutting result.
  • the two different cutting edge sections can be optimized for different tasks.
  • a forward outer cutting edge portion at rotation may be set like a sickle at a grazing cut angle, so that the cut is well cut.
  • the inner cutting edge portion may be made straight or curved short, so that the cutting disc has a short slot and is characterized accordingly by a high stability.
  • the present invention includes both versions with concave and convex cutting edges. Both the cutting discs with in the middle projecting so leading cutting edges as well as those falling back in the middle so trailing cutting edges are mechanically stable and they cut soft crops, such as ham, with smooth cutting edges and correspondingly high quality cut.
  • the cutting edge of the cutting disc according to the invention is a concave cutting edge.
  • the concave cutting edge has the advantage that the cut is well caught when cutting from the concave bulge or the concave notch. This results in very clean cuts and there is little waste when cutting the clippings.
  • a preferred cutting disc has a V-shaped cutting edge, with a straight inner cutting edge portion disposed at an angle to a straight outer cutting edge portion to form the "V", wherein the inner cutting edge portion at a convex edge in an internal angle between 0 and 25 ° is aligned with the tangent to the inner radius or wherein the inner cutting edge portion is aligned at a concave cutting edge at an inner angle between 155 and 180 ° to the tangent to the inner radius.
  • the cutting edge and the cutting edge have the shape of the letter V.
  • the two bars of the V each have straight cutting edges, which can be easily manufactured in particular as two individual components.
  • the straight cutting edges are aligned at a small angle to 25 ° with respect to the tangents of the circles with the inner radius or the middle radius.
  • this small angle at the inner radius is given as an obtuse angle by the convex cutting edges for better distinctness corresponding to 155 ° or greater.
  • the small complementary angle which is a maximum of 25 °, is actually important here. Angle variations in the specified angular ranges affect the cutting efficiency only slightly.
  • the inner angle of attack and an outer angle of attack are each optimized so that overall a cutting-to-pressure ratio is maximized, wherein as cutting-to-pressure ratio a ratio v h / v v of a tangential or horizontal velocity component v h to a normal or vertical velocity component v v between a clippings and the cutting edge is designated.
  • cutting-to-pressure ratio a ratio v h / v v of a tangential or horizontal velocity component v h to a normal or vertical velocity component v v between a clippings and the cutting edge is designated.
  • the inner cutting edge portion and the outer cutting edge portion are the same length.
  • the same parts can be used for both cutting edges during production and low production costs can be achieved.
  • the inner angle of attack is 15 ° and the outer cutting edge portion is aligned with the tangent to the central radius at an average angle of attack of 160 ° or the inner angle of attack is 165 ° and the average angle of attack is 20 °.
  • the cutting edge is a crescent-shaped cutting edge having a circular inner cutting edge portion and a logarithmic spiral outer cutting edge portion, wherein in the outer cutting edge portion a spiral pitch angle is constantly large at all points, the spiral pitch angle between a tangent to a circle concentric with the center of the cutting disc and a tangent to the cutting edge portion at the intersection with the circle, and wherein the circular cutting edge portion tangentially abuts the spiral cutting edge portion.
  • the outer cutting edge portion has a helical optimized shape for clean cuts.
  • the relatively short inner cutting edge portion provides for an overall short length of the cutting edge and thus for a stable blade and also for a good grip of the material to be cut.
  • the inner cutting edge section extends over 40% of the length of the cutting edge and the outer cutting edge section extends over 60% of the length of the cutting edge. With these conditions, the requirements of the cutting disc are met particularly well balanced.
  • FIGS. Further advantageous embodiments of the invention are illustrated below with reference to exemplary embodiments in FIGS. These embodiments are illustrative and not limiting of the invention.
  • Fig. 1 first shows a cutting disc of the prior art, namely of the food processor "Kennwood FPM 800", in a perspective view.
  • a receptacle and a drive the cutting disc is provided in a clockwise direction in the food processor.
  • a scythe-shaped cutting edge can be seen, at the front edge of which there is a cutting edge.
  • this cutting disc provides some good cutting results. For soft goods, such as ham, the quality of cut can be improved.
  • Fig. 2 a shows a preferred embodiment of a cutting disc 1 according to the invention with a V-shaped cutting edge 2 in a perspective view.
  • the same cutting disc 1 is in Fig. 2b drawn in a view from above.
  • the base plate 3 is the mechanical body of the cutting disc 1.
  • the cutting edge 4 is fixed.
  • the cutting edge 3 is composed of two partial cutting and mounted at a fixed distance above the base plate 2.
  • the base plate 2 is in the illustrated embodiment in the open region of the V, which is also referred to as trailing surface 7, deformed slightly downwards, so that the cutting width of the crop defining distance in part by a rising of the cutting edge and partially by a depression of the base disk section the cutting edge is formed.
  • the sheath 3 is mounted vertically adjustable.
  • the cutting edge has a cutting edge 4 at the front in the intended direction of movement.
  • the cutting edge 4 is divided into two different cutting edge sections 5, 6.
  • an inner cutting edge portion 5 is oriented to have a negative slope as a function of the radius of the cutting wheel.
  • an outer cutting edge portion 6 is oriented to have a positive slope as a function of the radius of the cutting disc.
  • the two cutting edge sections 5, 6 thus differ in their mutually opposite orientation.
  • the opposite orientation corresponds to a positive and a negative slope in a representation of the cutting edge profile as a function of the radius.
  • a rotation is provided in the clockwise direction.
  • the cutting edge 3 is correspondingly a concave cutting edge 3, in which the inner cutting edge section 5 and the outer cutting edge section 6 partially frame a trailing face 7. In the trailing surface 7, the clippings are well grasped and it is achieved a clean cut.
  • the V is also formed sufficiently small to ensure the mechanical stability of the cutting disc 1.
  • Fig. 2b shows that the inner cutting edge portion 5 is aligned at an angle of incidence ⁇ of about 165 ° to the tangent to the point P, which marks the end of the inner cutting edge portion 5 at the inner radius r1.
  • the complementary angle to the tangent is correspondingly at 15 ° a small angle.
  • the outer cutting edge portion 6 in the embodiment has the same length as the inner cutting edge portion 5 and is aligned at an angle ⁇ of about 20 ° to the tangent to the middle radius r2.
  • the inner cutting edge portion 5 and the outer cutting edge portion 6 include a V angle ⁇ . With these angles shown, the cut-to-pressure ratio is optimized at the given cutting edges 5, 6.
  • Fig. 3 The velocity components v h and v p used to optimize the cut-to-pressure ratio are in Fig. 3 shown.
  • the inner cutting edge portion 5 is shown at an acute angle of attack ⁇ in which there is a convex cutting edge with a projection 8 at the middle radius r2.
  • the outer cutting edge portion 6 is not shown for the sake of clarity.
  • Fig. 4 shows a cutting disc of the prior art, which was specified by Tony Atkins in the above-mentioned article as a result of optimization of a curved cutting edge.
  • the cutting edge has a logarithmic spiral cutting edge. In practice, such a cutting disc proved unstable.
  • Fig. 5a and Fig. 5b show a preferred embodiment of a cutting disc 1 'according to the invention in a plan view and in a perspective view.
  • the peculiarities of the cutting disc 1 ' are compared with Fig. 5a With Fig. 4 clear.
  • the cutting edge 3 here has a circular inner cutting edge section 5 and a logarithmic spiral outer cutting edge section 6. At the inner radius r1 and at the outer radius r3, both cutting edge sections 5, 6 are arranged trailing, so that clippings in the trailing face 7und between the cutting edge sections 5, 6 is urged.
  • the cutting disc 1 ' is characterized by very good cutting results.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food-Manufacturing Devices (AREA)

Claims (8)

  1. Disque de coupe pour un appareil de cuisine, dans lequel le disque de coupe (1) présente un disque de base (2) essentiellement plat et au moins un tranchant (3) s'étendant d'un cercle intérieur avec un rayon intérieur (r1) à un rayon extérieur (r3) avec un bord de coupe (4) éloigné du disque de base (2), caractérisé en ce que le bord de coupe (4) est subdivisé en au moins deux sections de bord de coupe (5, 6) orientées différemment ou présentant une courbure différente, dans lequel une section de bord de coupe (5) intérieure est orientée entre le rayon intérieur (r1) et un rayon moyen (r2) et une section de bord de coupe (6) extérieure est orientée entre le rayon moyen (r2) et le rayon extérieur (r3), chacune respectivement sous la forme de sections de bord de coupe suiveuses ou chacune respectivement sous la forme de sections de bord de coupe en tête, dans lequel, en présence de sections de bord de coupe suiveuses sur le bord de coupe, le rayon moyen (r2) se trouve, dans une direction de déplacement du disque de coupe, derrière le rayon intérieur (r1) et derrière le rayon extérieur (r3), de sorte qu'un bord de coupe concave est constitué, et dans lequel, en présence de sections de bord de coupe en tête sur le bord de coupe, le rayon moyen (r2) se trouve, dans une direction de déplacement du disque de coupe, devant le rayon intérieur (r1) et devant le rayon extérieur (r3), de sorte qu'un bord de coupe convexe est constitué.
  2. Disque de coupe selon la revendication 1, caractérisé en ce que le bord de coupe (4) est un bord de coupe concave (4).
  3. Disque de coupe selon la revendication 1, caractérisé en ce que le bord de coupe (4) est un bord de coupe en forme de V (4), dans lequel une section de bord de coupe intérieure droite (5) est disposée selon un angle en V (θ) par rapport à une section de bord de coupe extérieure droite en formant le "V", dans lequel la section de bord de coupe intérieure (5) est, en présence d'un tranchant convexe (3), orientée selon un angle d'incidence intérieur (Φ) entre 0 et 25° par rapport à la tangente au rayon intérieur (r1) ou dans lequel la section de bord de coupe intérieure (5) est, en présence d'un bord de coupe concave, orientée selon un angle d'incidence intérieur (Φ) entre 155° et 180° par rapport à la tangente au rayon intérieur (r1).
  4. Disque de coupe selon la revendication 3, caractérisé en ce que l'angle d'incidence intérieur (Φ) et un angle d'incidence moyen (Φ) sont respectivement optimisés de telle sorte qu'un rapport coupe-pression est globalement maximisé pour chaque section de bord de coupe (5, 6), dans lequel le rapport coupe-pression est désigné comme un rapport (vh/vv) d'une composante de vitesse tangentielle resp. horizontale (vh) par rapport à une composante de vitesse normale resp. verticale (vv) entre un aliment à couper et le bord de coupe (4).
  5. Disque de coupe selon la revendication 3 ou 4, caractérisé en ce que la section de bord de coupe intérieure (5) et la section de bord de coupe extérieure (6) sont de longueur identique.
  6. Disque de coupe selon la revendication 5, caractérisé en ce que l'angle d'incidence intérieur (Φ) mesure 15° et la section de bord de coupe extérieure (6) est orientée par rapport à la tangente au rayon moyen (r2) selon un angle d'incidence extérieur (Φ) de 160° ou en ce que l'angle d'incidence intérieur (Φ) mesure 165° et l'angle d'incidence moyen (Φ) mesure 20°.
  7. Disque de coupe selon la revendication 2, caractérisé en ce que le bord de coupe (4) est un bord de coupe en forme de faucille (4) avec une section de bord de coupe intérieure circulaire (5) et une section de bord de coupe extérieure (6) en forme de spirale logarithmique, dans lequel, dans la section de bord de coupe extérieure, un angle de pas de spirale est constant en tous les points, dans lequel l'angle de pas de spirale est défini entre une tangente à un cercle concentrique par rapport au centre du disque de coupe et une tangente à la section de bord de coupe au point d'intersection avec le cercle, et dans lequel la section de bord de coupe intérieure circulaire (5) touche tangentiellement la section de bord de coupe extérieure spiralée (6).
  8. Disque de coupe selon la revendication 7, caractérisé en ce que la section de bord de coupe intérieure (5) s'étend sur 40% de la longueur du bord de coupe (4) et la section de bord de coupe extérieure (6) s'étend sur 60% de la longueur du bord de coupe (4).
EP16150510.2A 2015-02-06 2016-01-08 Disque de coupe Active EP3053713B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201630242T SI3053713T1 (sl) 2015-02-06 2016-01-08 Rezalna plošča

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015202199.8A DE102015202199A1 (de) 2015-02-06 2015-02-06 Schneidscheibe

Publications (2)

Publication Number Publication Date
EP3053713A1 EP3053713A1 (fr) 2016-08-10
EP3053713B1 true EP3053713B1 (fr) 2019-04-03

Family

ID=55072570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16150510.2A Active EP3053713B1 (fr) 2015-02-06 2016-01-08 Disque de coupe

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Country Link
EP (1) EP3053713B1 (fr)
DE (1) DE102015202199A1 (fr)
SI (1) SI3053713T1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108848863B (zh) * 2018-08-24 2023-10-31 海盐爱建股份有限公司 一种角度可调的割草机刀盘

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US301975A (en) * 1884-07-15 Feed-cutter
US296757A (en) * 1884-04-15 Samuel kbaushaar
US990063A (en) * 1910-08-17 1911-04-18 Henry E Ramseyer Vegetable-cutter.
DE421712C (de) * 1925-03-11 1925-11-20 Maschf Sichelfoermiges, mit glatter, saegezahnartiger oder wellenfoermiger Schneidekante versehenes Kuttermesser
FR948423A (fr) * 1947-06-09 1949-08-01 Coupe-légumes
FR2364013A1 (fr) * 1976-09-09 1978-04-07 Robot Coupe Sa Support d'outils amovibles pour des appareils electromenagers
FR2565883A1 (fr) * 1984-06-18 1985-12-20 Hotimsky Eric Couteaux pour machines a hacher industrielles denommees " cutters "
DE3833596A1 (de) * 1988-10-03 1990-04-05 Uwe Reifenhaeuser Messer zum schneiden von gut in scheiben
DE4214730C2 (de) * 1992-05-08 1994-02-24 Stimpfl Christof Kuttermesser
DE19654733C1 (de) * 1996-12-30 1998-05-20 Eberhard Dr Haack Kuttermesser
DE19812355A1 (de) * 1998-03-20 1999-09-30 Braun Gmbh Küchengerät
GB2482909A (en) * 2010-08-20 2012-02-22 Kenwood Ltd Disc Cutter with Concave Blade
DK2561780T3 (da) * 2011-08-25 2014-09-29 Electrolux Professionel Sas Skæreskive til skæring af levnedsmidler og dertil hørende apparat.

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
EP3053713A1 (fr) 2016-08-10
DE102015202199A1 (de) 2016-08-25
SI3053713T1 (sl) 2019-06-28

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