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EP4240531B1 - Supporting cross for a mincing machine - Google Patents

Supporting cross for a mincing machine Download PDF

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Publication number
EP4240531B1
EP4240531B1 EP21805943.4A EP21805943A EP4240531B1 EP 4240531 B1 EP4240531 B1 EP 4240531B1 EP 21805943 A EP21805943 A EP 21805943A EP 4240531 B1 EP4240531 B1 EP 4240531B1
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EP
European Patent Office
Prior art keywords
hub
cross
support cross
noses
shaped support
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
EP21805943.4A
Other languages
German (de)
French (fr)
Other versions
EP4240531C0 (en
EP4240531A1 (en
Inventor
Udo Back
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.)
Lumbeck & Wolter & Co KG GmbH
Original Assignee
Lumbeck & Wolter & Co KG GmbH
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Application filed by Lumbeck & Wolter & Co KG GmbH filed Critical Lumbeck & Wolter & Co KG GmbH
Publication of EP4240531A1 publication Critical patent/EP4240531A1/en
Application granted granted Critical
Publication of EP4240531B1 publication Critical patent/EP4240531B1/en
Publication of EP4240531C0 publication Critical patent/EP4240531C0/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/30—Mincing machines with perforated discs and feeding worms
    • B02C18/301—Mincing machines with perforated discs and feeding worms with horizontal axis
    • B02C18/302—Mincing machines with perforated discs and feeding worms with horizontal axis with a knife-perforated disc unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/30—Mincing machines with perforated discs and feeding worms
    • B02C18/305—Details

Definitions

  • the invention relates to a support cross for a meat grinder.
  • Meat grinders generally use a multi-part cutting set that cuts the material to be cut up, which is fed in via a working screw, to the desired size in several cutting steps, for example using a pre-cutter, one or more knives and perforated disks.
  • the last element of such a cutting set is usually a support cross.
  • the knives are mounted on a drivable, rotating knife pin, so that they rotate together with the knife pin.
  • they have a central shaped recess adapted to the cross-section of the knife pin.
  • the pre-cutter, the perforated disks and the support cross are arranged in the housing of the meat grinder in a rotationally fixed manner and have a central hole for the knife pin.
  • the knife pin is connected to the conveyor screw at one end in a rotationally fixed manner and has an axially extending support section starting from the connection point with the conveyor screw on which the knives are mounted.
  • the knife pin is inserted with its one end, the insertion end, into the bearing bore of the conveyor screw.
  • the fastening ring which is pushed onto the knife pin and rests against the stop surface of the knife pin, is then connected to the conveyor screw.
  • This connection is a detachable connection.
  • recesses 21 are provided on the fastening ring to make it easier to loosen the screw connection, see Fig. 2 , or notches 22, see Fig. 4 , which provide access for suitable tools when loosening the screw connection.
  • the object of the present invention was to simplify the assembly or disassembly of the known knife pins.
  • a new support cross is proposed for a meat grinder, which in a known manner comprises a hub with a central bore, an outer ring and several webs which extend between the hub and the outer ring. There is a groove on the outside of the outer ring for the rotationally fixed mounting of the support cross in the meat grinder.
  • this support cross has a tool function. In the area of the hub there are one or more elements which have a tool function.
  • such elements are present as lugs on one end of the hub. These elements can serve as engagement elements, for example, when dismantling the knife pin.
  • the lugs protrude from the end of the hub, i.e. from the front or back of the support cross.
  • the arrangement of the lugs is important.
  • the fastening ring After removing the cutting elements from the meat grinder, the fastening ring must be loosened in order to dismantle the knife pin described above.
  • This fastening ring holds the knife pin in the conveyor screw.
  • the support cross is pushed onto the knife pin and turned so that the lugs on the support cross are aligned with corresponding recesses or notches in the fastening ring.
  • the support cross is pressed onto the fastening ring, and the lugs engage in the recesses or notches in the fastening ring.
  • the fastening ring can now be loosened by turning the support cross.
  • the new support cross braces the elements of the cutting set in the housing of the meat grinder in a known manner together with a locking nut.
  • the new support cross has an additional function, namely a tool function. In one embodiment of the invention, it can serve as an assembly or disassembly tool for the knife pin.
  • no additional tools are required for assembling and disassembling the knife pin.
  • the support cross 10 shown in the figures is the last element of a cutting set in the meat grinder.
  • This support cross 10 has in Fig. 1 three webs 12, which connect an outer ring 13 and a central hub 11.
  • a central bore 15 is provided in the hub 11.
  • the knife pin 30, shown in Fig. 2 rotatably mounted.
  • the hub 11 has two lugs 16, 16' on its front surface.
  • a groove 14 is provided on the outer ring 13, which interacts with a corresponding key on the housing wall of the meat grinder and thus prevents a rotational movement of the support cross 10 during the shredding process.
  • the key is removed and a rotational movement of the support cross is possible.
  • Fig. 2 shows the conveyor screw 40, the knife pin 30 and the fastening ring 20 used to connect the knife pin 30 to the conveyor screw 40.
  • two sealing rings 50, 51 are provided in this embodiment.
  • the knife pin 30 is inserted into the conveyor screw 40 at one end.
  • Fastening ring 20, which has a suitable thread for a screw connection to the conveyor screw 40, is pushed over the knife pin 30.
  • the support cross 10 is then pushed over the narrower part of the knife pin 30 and the support cross 10 is aligned so that the two lugs 16, 16' can engage in the two recesses 21. If the support cross 10 is pressed tightly against the fastening ring 20, the support cross 10 can be rotated.
  • the webs 12 of the support cross provide a handle for this.
  • the rotary movement of the support cross 10 is transmitted to the fastening ring 20 by the engagement of the lugs 16, 16' in the recesses 21, thus tightening the screw connection to the conveyor screw 40.
  • the knife pin 30 is also dismantled using the support cross 10. An additional tool is therefore not required.
  • lugs 16, 16' diametrically opposite each other on the front side of the hub 11.
  • the lugs 16, 16' are located on the outer edge of the hub 11. This arrangement has been chosen so that the lugs 16, 16' fit into the edge notches 22 of the fastening ring 20', shown in Fig. 4 , The assembly and disassembly process of the knife pin 30 using the support cross 10 from Fig. 3 is done as described in the previous example.
  • the support cross 10 has a bearing bush 17 accommodated in the central bore 15.
  • Such bearing bushes 17 are used in support crosses and cutting elements of the meat grinder so that after a certain period of operation only the bearing bush has to be replaced and not the support cross or cutting element.
  • the two lugs 16, 16' are located diametrically opposite each other on the front of the bearing bush 17.
  • the lugs 16, 16' protrude from the front.
  • the lugs 16, 16' are provided on the outer edge of the bearing bush 17, see Fig. 8 .
  • the bearing bush 17 has an inner bore in which the knife pin 30, shown in Fig. 2 , can be mounted in a rotatable manner.
  • the bearing bush 17 has a front area of larger outer diameter - left side in Fig. 7 and a rear area with smaller outer diameter - right side in Fig. 7 .
  • the hub 11 of the support cross 10 has a central bore 15 with two areas, each of which has a different inner diameter, so that a step is formed.
  • the assembly and disassembly process of the knife pin 30 with the help of this support cross 10 from Fig. 5 is carried out as already described.
  • the step inside the hub 11 prevents the bearing bush 17 from being pushed backwards through the central hole 15 during assembly or disassembly. It forms a stop area for the front area of the bearing bush 17.
  • the front area of larger outer diameter is also designed as a ring, but the rear area has a shape that differs from a round ring, for example, it has an oval circumference in cross-section.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Description

Die Erfindung bezieht sich auf ein Stützkreuz für einen Fleischwolf.The invention relates to a support cross for a meat grinder.

Beispiele von gattungsgemäßen Stützkreuzen sind z.B. in DE 202014104033U1 und EP 0467428A1 offenbart.Examples of generic support crosses are e.g. DE 202014104033U1 and EP 0467428A1 revealed.

Bei Fleischwölfen wird in der Regel ein mehrteiliger Schneidsatz verwendet, der das über eine Arbeitsschnecke zugeführte zu zerkleinernde Material in mehreren Zerkleinerungsschritten, beispielsweise mittels eines Vorschneiders, eines oder mehrerer Messer und Lochscheiben, in dem gewünschten Maß zerkleinert. Das letzte Element eines solchen Schneidsatzes bildet in der Regel ein Stützkreuz. Bei dem Zerkleinerungsvorgang sind die Messer auf einem antreibbaren drehbeweglichen Messerzapfen gelagert, so dass sie sich zusammen mit dem Messerzapfen mitdrehen. Sie besitzen hierzu eine an den Querschnitt des Messerzapfens angepasste zentrale Formausnehmung. Der Vorschneider, die Lochscheiben und das Stützkreuz dagegen sind drehfest im Gehäuse des Fleischwolfs angeordnet und besitzen eine zentrale Bohrung für den Messerzapfen.Meat grinders generally use a multi-part cutting set that cuts the material to be cut up, which is fed in via a working screw, to the desired size in several cutting steps, for example using a pre-cutter, one or more knives and perforated disks. The last element of such a cutting set is usually a support cross. During the cutting process, the knives are mounted on a drivable, rotating knife pin, so that they rotate together with the knife pin. For this purpose, they have a central shaped recess adapted to the cross-section of the knife pin. The pre-cutter, the perforated disks and the support cross, on the other hand, are arranged in the housing of the meat grinder in a rotationally fixed manner and have a central hole for the knife pin.

Bei bekannten Fleischwölfen gemäß dem Gebrauchsmuster DE 20 2020 105 051.6 oder DE 20 2020 105 052.4 ist der Messerzapfen mit einem Ende drehfest mit der Förderschnecke verbunden und besitzt ausgehend von der Verbindungsstelle mit der Förderschnecke einen axial verlaufenden Tragabschnitt, auf dem die Messer lagern. Bei der Montage wird der Messerzapfens mit seinem einen Ende, dem Einsteckende, in die Lagerbohrung der Förderschnecke eingesteckt. Der auf den Messerzapfen aufgeschobene und an der Anschlagfläche des Messerzapfens anliegende Befestigungsring wird anschließend mit der Förderschnecke verbunden. Bei dieser Verbindung handelt es sich um eine lösbare Verbindung. Bei der Demontage des Messerzapfens sind zur Erleichterung des Lösens der Schraubverbindung am Befestigungsring Ausnehmungen 21, siehe Fig. 2, oder Kerben 22, siehe Fig. 4, vorhanden, welche beim Lösen der Schraubverbindung Eingriffsmöglichkeiten für passende Werkzeuge bieten.In known meat grinders according to the utility model DE 20 2020 105 051.6 or DE 20 2020 105 052.4 The knife pin is connected to the conveyor screw at one end in a rotationally fixed manner and has an axially extending support section starting from the connection point with the conveyor screw on which the knives are mounted. During assembly, the knife pin is inserted with its one end, the insertion end, into the bearing bore of the conveyor screw. The fastening ring, which is pushed onto the knife pin and rests against the stop surface of the knife pin, is then connected to the conveyor screw. This connection is a detachable connection. When dismantling the knife pin, recesses 21 are provided on the fastening ring to make it easier to loosen the screw connection, see Fig. 2 , or notches 22, see Fig. 4 , which provide access for suitable tools when loosening the screw connection.

Aufgabe der vorliegenden Erfindung war es eine Vereinfachung der Montage oder Demontage der bekannten Messerzapfen zu bewirken.The object of the present invention was to simplify the assembly or disassembly of the known knife pins.

Diese Aufgabe wird mit einem Stützkreuz für Fleischwölfe mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungen beschreiben die Unteransprüche.This object is achieved with a support cross for meat grinders with the features of claim 1. Advantageous embodiments are described in the subclaims.

Für einen Fleischwolf wird ein neues Stützkreuz vorgeschlagen, welches in bekannter Weise eine Nabe mit einer zentralen Bohrung, einen Außenring und mehrere Stege umfasst, welche sich zwischen der Nabe und dem Außenring erstrecken. An der Außenseite des Außenrings ist zur drehfesten Lagerung des Stützkreuzes im Fleischwolf eine Nut vorhanden. Zusätzlich besitzt dieses Stützkreuz eine Werkzeugfunktion. So sind im Bereich der Nabe ein oder mehrere Elemente vorhanden, die eine Werkzeugfunktion besitzen.A new support cross is proposed for a meat grinder, which in a known manner comprises a hub with a central bore, an outer ring and several webs which extend between the hub and the outer ring. There is a groove on the outside of the outer ring for the rotationally fixed mounting of the support cross in the meat grinder. In addition, this support cross has a tool function. In the area of the hub there are one or more elements which have a tool function.

Bei einer Ausführungsform sind solche Elemente als Nasen an einer Stirnseite der Nabe vorhanden. Diese Elemente können als Eingriffselemente z.B. bei der Demontage des Messerzapfens dienen. Gemäß dieser Ausführungsform ragen die Nasen von der Stirnseite der Nabe, d.h. von der Vorder- oder Rückseite des Stützkreuzes, ab. Die Anordnung der Nasen ist dabei wesentlich. Nach einer Entnahme der Schneidelemente aus dem Fleischwolf muss für eine Demontage des oben beschriebenen Messerzapfens der Befestigungsring gelöst werden. Dieser Befestigungsring hält den Messerzapfen in der Förderschnecke. Das Stützkreuz wird dazu auf den Messerzapfen geschoben und so gedreht, dass die am Stützkreuz vorhandenen Nasen mit entsprechenden Ausnehmungen oder Kerben des Befestigungsrings fluchten. Das Stützkreuz wird an den Befestigungsring gedrückt, dabei greifen die Nasen in die Ausnehmungen oder Kerben des Befestigungsrings. Nun kann durch Drehung des Stützkreuzes der Befestigungsring gelöst werden.In one embodiment, such elements are present as lugs on one end of the hub. These elements can serve as engagement elements, for example, when dismantling the knife pin. According to this embodiment, the lugs protrude from the end of the hub, i.e. from the front or back of the support cross. The arrangement of the lugs is important. After removing the cutting elements from the meat grinder, the fastening ring must be loosened in order to dismantle the knife pin described above. This fastening ring holds the knife pin in the conveyor screw. To do this, the support cross is pushed onto the knife pin and turned so that the lugs on the support cross are aligned with corresponding recesses or notches in the fastening ring. The support cross is pressed onto the fastening ring, and the lugs engage in the recesses or notches in the fastening ring. The fastening ring can now be loosened by turning the support cross.

Das neue Stützkreuz verspannt in bekannter Weise zusammen mit einer Verschlussmutter die Elemente des Schneidsatzes in dem Gehäuse des Fleischwolfs. Darüber hinaus hat das neue Stützkreuz eine Zusatzfunktion, nämlich eine Werkzeugfunktion. Bei einer Ausführung der Erfindung kann es als Montage- bzw. Demontagewerkzeug für den Messerzapfen dienen. Es wird in vorteilhafter Weise für die Montage und Demontage des Messerzapfens kein zusätzliches Werkzeug benötigt.The new support cross braces the elements of the cutting set in the housing of the meat grinder in a known manner together with a locking nut. In addition, the new support cross has an additional function, namely a tool function. In one embodiment of the invention, it can serve as an assembly or disassembly tool for the knife pin. Advantageously, no additional tools are required for assembling and disassembling the knife pin.

Nachfolgend wird die Erfindung anhand von drei Ausführungsbeispiele anhand der Zeichnung näher erläutert. Die Zeichnung zeigt:

Fig. 1
eine perspektivische Ansicht eines erfindungsgemäßen Stützkreuzes,
Fig. 2
einen bekannten Messerzapfen vor der Montage,
Fig. 3
eine perspektivische Ansicht eines weiteren Stützkreuzes,
Fig. 4
einen weiteren bekannten Messerzapfen vor der Montage,
Fig. 5
eine Vorderseite eines weiteren erfindungsgemäßen Stützkreuzes,
Fig. 6
eine Schnittdarstellung vom Stützkreuz gemäß Fig. 5,
Fig. 7
eine Seitenansicht einer Lagerbuchse,
Fig. 8
eine Vorderseite einer Lagerbuchse.
The invention is explained in more detail below using three embodiments and the drawing. The drawing shows:
Fig. 1
a perspective view of a support cross according to the invention,
Fig. 2
a known knife pin before assembly,
Fig. 3
a perspective view of another support cross,
Fig. 4
another known knife pin before assembly,
Fig. 5
a front side of another support cross according to the invention,
Fig. 6
a sectional view of the support cross according to Fig. 5 ,
Fig. 7
a side view of a bearing bush,
Fig. 8
a front side of a bearing bush.

Das in den Figuren gezeigte Stützkreuz 10 ist das letzte Element eines Schneidsatzes im Fleischwolf. Dieses Stützkreuz 10 hat in Fig. 1 drei Stege 12, die einen Außenring 13 und eine zentralen Nabe 11 verbinden. In der Nabe 11 ist eine zentrale Bohrung 15 vorgesehen. In dieser zentralen Bohrung 15 kann der Messerzapfen 30, gezeigt in Fig. 2, drehbeweglich aufgenommen werden. In diesem Beispiel besitzt die Nabe 11 an ihrer Stirnfläche zwei Nasen 16, 16'. Für die drehfeste Lagerung des Stützkreuzes 10 im Fleischwolf ist am Außenring 13 eine Nut 14 vorhanden, die mit einer entsprechenden Passfeder an der Gehäusewand des Fleischwolfs zusammenwirkt und so eine Drehbewegung des Stützkreuzes 10 während des Zerkleinerungsprozesses verhindert. Zur Montage und Demontage der Elemente des Schneidsatzes wird die Passfeder entnommen und eine Drehbewegung des Stützkreuzes ist möglich.The support cross 10 shown in the figures is the last element of a cutting set in the meat grinder. This support cross 10 has in Fig. 1 three webs 12, which connect an outer ring 13 and a central hub 11. A central bore 15 is provided in the hub 11. In this central bore 15 the knife pin 30, shown in Fig. 2 , rotatably mounted. In this example, the hub 11 has two lugs 16, 16' on its front surface. For the rotationally fixed mounting of the support cross 10 in the meat grinder, a groove 14 is provided on the outer ring 13, which interacts with a corresponding key on the housing wall of the meat grinder and thus prevents a rotational movement of the support cross 10 during the shredding process. To assemble and disassemble the elements of the cutting set, the key is removed and a rotational movement of the support cross is possible.

Fig. 2 zeigt die Förderschnecke 40, den Messerzapfen 30 und den zur Verbindung des Messerzapfens 30 mit der Förderschnecke 40 verwendete Befestigungsring 20. Zusätzlich sind in diesem Ausführungsbeispiel zwei Dichtringe 50, 51 vorgesehen. Der Messerzapfen 30 wird mit einem Ende in die Förderschnecke 40 eingesteckt. Über den Messerzapfen 30 wird Befestigungsring 20 geschoben, welcher ein passendes Gewinde für eine Schraubverbindung mit der Förderschnecke 40 besitzt. Anschließend wird auch das Stützkreuz 10 über den schmaleren Teil des Messerzapfens 30 geschoben und das Stützkreuz 10 so ausgerichtet, dass die beiden Nasen 16, 16' in die beiden Ausnehmungen 21 eingreifen können. Ist das Stützkreuz 10 dicht an den Befestigungsring 20 gedrückt, kann eine Drehbewegung des Stützkreuzes 10 vorgenommen werden. Die Stege 12 des Stützkreuzes bieten hierzu eine Handhabe. Die Drehbewegung des Stützkreuzes 10 wird durch den Eingriff der Nasen 16, 16' in die Ausnehmungen 21 auf den Befestigungsring 20 übertragen und so die Schraubverbindung zur Förderschnecke 40 fest gezogen. Eine Demontage des Messerzapfens 30 erfolgt ebenfalls mit Hilfe des Stützkreuzes 10. Ein zusätzliches Werkzeug muss daher nicht vorhanden sein. Fig. 2 shows the conveyor screw 40, the knife pin 30 and the fastening ring 20 used to connect the knife pin 30 to the conveyor screw 40. In addition, two sealing rings 50, 51 are provided in this embodiment. The knife pin 30 is inserted into the conveyor screw 40 at one end. Fastening ring 20, which has a suitable thread for a screw connection to the conveyor screw 40, is pushed over the knife pin 30. The support cross 10 is then pushed over the narrower part of the knife pin 30 and the support cross 10 is aligned so that the two lugs 16, 16' can engage in the two recesses 21. If the support cross 10 is pressed tightly against the fastening ring 20, the support cross 10 can be rotated. The webs 12 of the support cross provide a handle for this. The rotary movement of the support cross 10 is transmitted to the fastening ring 20 by the engagement of the lugs 16, 16' in the recesses 21, thus tightening the screw connection to the conveyor screw 40. The knife pin 30 is also dismantled using the support cross 10. An additional tool is therefore not required.

Bei einer weiteren Ausführungsform des Stützkreuzes 10, gezeigt in Fig. 3, sind ebenfalls zwei Nasen 16, 16' diametral gegenüberliegend an der Stirnseite der Nabe 11 vorhanden. In diesem Fall befinden sich die Nasen 16, 16' am äußeren Rand der Nabe 11. Diese Anordnung ist gewählt worden, damit die Nasen 16, 16' in die randseitigen Kerben 22 des Befestigungsrings 20', gezeigt in Fig. 4, eingreifen können. Der Montage- und Demontagevorgang des Messerzapfens 30 mit Hilfe des Stützkreuzes 10 aus Fig. 3 erfolgt wie im vorausgegangenen Beispiel beschrieben.In a further embodiment of the support cross 10, shown in Fig. 3 , there are also two lugs 16, 16' diametrically opposite each other on the front side of the hub 11. In this case, the lugs 16, 16' are located on the outer edge of the hub 11. This arrangement has been chosen so that the lugs 16, 16' fit into the edge notches 22 of the fastening ring 20', shown in Fig. 4 , The assembly and disassembly process of the knife pin 30 using the support cross 10 from Fig. 3 is done as described in the previous example.

Bei einer dritten Ausführungsform des Stützkreuzes 10, gezeigt in Fig. 5 und Fig. 6, besitzt das Stützkreuz 10 eine in der zentralen Bohrung 15 aufgenommene Lagerbuchse 17. Solche Lagerbuchsen 17 werden bei Stützkreuzen und Schneidelementen des Fleischwolfs verwendet, um nach einer gewissen Betriebsdauer nur die Lagerbuchse auswechseln zu müssen und nicht das Stützkreuz oder Schneidsatzelement. Bei dieser Ausführungsform des Stützkreuzes 10 befinden sich die zwei Nasen 16, 16' diametral gegenüberliegend an der Vorderseite der Lagerbuchse 17. In der Seitenansicht der Lagerbuchse 17 in der Fig. 7 wird deutlich, dass die Nasen 16, 16' von der Vorderseite ab ragen. Auch hier sind die Nasen 16, 16' am äußeren Rand der Lagerbuchse 17 vorgesehen, siehe Fig. 8. Die Lagerbuchse 17 hat eine Innenbohrung, in welcher der Messerzapfen 30, gezeigt in Fig. 2, drehbeweglich aufgenommen werden kann.In a third embodiment of the support cross 10, shown in Fig. 5 and Fig. 6 , the support cross 10 has a bearing bush 17 accommodated in the central bore 15. Such bearing bushes 17 are used in support crosses and cutting elements of the meat grinder so that after a certain period of operation only the bearing bush has to be replaced and not the support cross or cutting element. In this embodiment of the support cross 10, the two lugs 16, 16' are located diametrically opposite each other on the front of the bearing bush 17. In the side view of the bearing bush 17 in the Fig. 7 it becomes clear that the lugs 16, 16' protrude from the front. Here too, the lugs 16, 16' are provided on the outer edge of the bearing bush 17, see Fig. 8 . The bearing bush 17 has an inner bore in which the knife pin 30, shown in Fig. 2 , can be mounted in a rotatable manner.

Die Lagerbuchse 17 hat einen vorderen Bereich größeren Außendurchmessers - linken Seite in Fig. 7 und einen hinteren Bereich mit geringerem Außendurchmesser - rechte Seite in Fig. 7. Passend dazu besitzt die Nabe 11 des Stützkreuzes 10 eine zentrale Bohrung 15 mit zwei Bereichen, die jeweils einen unterschiedlichen Innendurchmesser aufweisen, so dass sich eine Stufe bildet. Der Montage- und Demontagevorgang des Messerzapfens 30 mit Hilfe dieses Stützkreuzes 10 aus Fig. 5 erfolgt wie bereits beschrieben. Hierbei verhindert die Stufe im Innern der Nabe 11, dass sich beim Montage- oder Demontagevorgang die Lagerbuchse 17 nach hinten durch die zentrale Bohrung 15 drückt. Sie bildet einen Anschlagbereich für den vorderen Bereich der Lagerbuchse 17.The bearing bush 17 has a front area of larger outer diameter - left side in Fig. 7 and a rear area with smaller outer diameter - right side in Fig. 7 . The hub 11 of the support cross 10 has a central bore 15 with two areas, each of which has a different inner diameter, so that a step is formed. The assembly and disassembly process of the knife pin 30 with the help of this support cross 10 from Fig. 5 is carried out as already described. The step inside the hub 11 prevents the bearing bush 17 from being pushed backwards through the central hole 15 during assembly or disassembly. It forms a stop area for the front area of the bearing bush 17.

Bei einer anderen Ausführungsform der Lagerbuchse ist der vorderen Bereich größeren Außendurchmessers ebenfalls als Ring ausgebildet, aber der hinteren Bereich eine vom runden Ring abweichende Form hat, beispielsweise eine im Querschnitt ovale Umfangslinie besitzt.In another embodiment of the bearing bush, the front area of larger outer diameter is also designed as a ring, but the rear area has a shape that differs from a round ring, for example, it has an oval circumference in cross-section.

Bezugszeichenlistelist of reference symbols

1010
Stützkreuzsupport cross
1111
Nabehub
1212
Stegefootbridges
1313
Außenringouter ring
1414
NutNut
1515
zentrale Bohrungcentral hole
16, 16'16, 16'
Nasennoses
1717
Lagerbuchsebearing bushing
2020
Befestigungsringmounting ring
2121
Ausnehmungrecess
2222
Kerbescore
3030
Messerzapfenknife tenon
4040
Förderschneckescrew conveyor
50, 5150, 51
Dichtringesealing rings

Claims (5)

  1. A cross-shaped support for a meat grinder,
    - comprising a hub (11) with a central bore (15), an outer ring (13) and a plurality of webs (12) which extend between the hub (11) and the outer ring (13),
    - with a groove (14) on the outside of the outer ring (13) for non-rotatable mounting in the meat grinder,
    characterised,
    - that in the area of the hub (11) there are one or more noses (16, 16') that have a tool function,
    - namely, the one or more noses (16, 16') are arranged on an end face of the hub (11), which project away from the end face or
    - a bearing bushing (17) is held in the central bore (15) of the hub (11) and has one or more noses (16, 16') on its front side, which protrude away from the front side.
  2. The cross-shaped support according to claim 1, characterised in that the two noses (16, 16') are arranged diametrically opposite one another on the end face.
  3. The cross-shaped support according to claim 1 or 2, characterised in that the protruding noses (16, 16') are located on the outer edge of the hub (11) or the bearing bushing (17).
  4. The cross-shaped support according to claim 1, characterised in that the bearing bushing (17) has two areas of different outside diameters, namely a front area with a larger outside diameter and the central bore (15) of the hub (11) for this bearing bushing (17) has a corresponding level.
  5. The cross-shaped support according to one of claims 1 to 4, characterised in that the rear region has a shape deviating from the round ring, for example has on oval cross-section perimeter.
EP21805943.4A 2020-11-05 2021-11-04 Supporting cross for a mincing machine Active EP4240531B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202020106351.0U DE202020106351U1 (en) 2020-11-05 2020-11-05 Support cross for a meat grinder
PCT/EP2021/080606 WO2022096556A1 (en) 2020-11-05 2021-11-04 Cross-shaped support for a meat-mincing machine

Publications (3)

Publication Number Publication Date
EP4240531A1 EP4240531A1 (en) 2023-09-13
EP4240531B1 true EP4240531B1 (en) 2024-12-04
EP4240531C0 EP4240531C0 (en) 2024-12-04

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Application Number Title Priority Date Filing Date
EP21805943.4A Active EP4240531B1 (en) 2020-11-05 2021-11-04 Supporting cross for a mincing machine

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US (1) US11969736B2 (en)
EP (1) EP4240531B1 (en)
DE (1) DE202020106351U1 (en)
ES (1) ES3008942T3 (en)
PL (1) PL4240531T3 (en)
WO (1) WO2022096556A1 (en)

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* Cited by examiner, † Cited by third party
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DE102021132411A1 (en) 2021-12-09 2023-06-15 Albert Handtmann Maschinenfabrik Gmbh & Co. Kg support cross

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Also Published As

Publication number Publication date
US20230381789A1 (en) 2023-11-30
US11969736B2 (en) 2024-04-30
EP4240531C0 (en) 2024-12-04
DE202020106351U1 (en) 2020-11-19
WO2022096556A1 (en) 2022-05-12
PL4240531T3 (en) 2025-04-14
EP4240531A1 (en) 2023-09-13
ES3008942T3 (en) 2025-03-25

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