EP0955134A2 - Bread cutter - Google Patents

Bread cutter Download PDF

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Publication number
EP0955134A2
EP0955134A2 EP99108047A EP99108047A EP0955134A2 EP 0955134 A2 EP0955134 A2 EP 0955134A2 EP 99108047 A EP99108047 A EP 99108047A EP 99108047 A EP99108047 A EP 99108047A EP 0955134 A2 EP0955134 A2 EP 0955134A2
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EP
European Patent Office
Prior art keywords
bread slicer
gate frame
gate
slicer according
bread
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Granted
Application number
EP99108047A
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German (de)
French (fr)
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EP0955134A3 (en
EP0955134B8 (en
EP0955134B1 (en
Inventor
Uwe Reifenhäuser
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Individual
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting 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
    • B26D1/01Cutting 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
    • B26D1/547Cutting 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 wire-like cutting member
    • B26D1/553Cutting 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 wire-like cutting member with a plurality of wire-like cutting members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27Means for performing other operations combined with cutting
    • B26D7/32Means for performing other operations combined with cutting for conveying or stacking cut product
    • B26D2007/327Means for performing other operations combined with cutting for conveying or stacking cut product the cut products being slices of bread

Definitions

  • the invention relates to a bread slicer with two oppositely oscillating knife gates, each of which is provided with a plurality of elongated knives running parallel to one another and through which a loaf of bread to be cut can be passed and cut into slices, each knife gate having a gate frame which is connected on one side to at least one drive device and on an opposite side to at least one guide device.
  • Such cutting machines are known for example from DE 93 15 185 U1 and DE 296 02 579 U1.
  • the knives of the two gates are offset from one another and protrude beyond the plane of the gate frame in such a way that they are approximately in one plane when viewed in the feed direction and alternately a knife of one and a knife of the other knife gate are arranged next to one another when viewed transversely to the feed direction.
  • the knife gates which are driven in opposite directions can prevent a loaf of bread to be cut from being lifted off the contact surface when the knives move upward.
  • the drive devices of such bread slicing machines consist of drive rockers, to which a frame frame is attached on both sides of the swing axis of rotation.
  • the guide devices are also designed as rockers, a rocker-type rocker often being dispensed with for cost reasons, and rather leaf spring-like rockers, which are each connected on one side to the machine housing.
  • Bread slicers of this type are generally equipped with a device for oiling the knife, which is intended to reduce the friction between the flanks of the knife and the bread. Due to the oil film adhering to the knives, bread crumbs and flour dust increasingly accumulate there, so that the gates have to be cleaned regularly. Furthermore, after a certain operating time, the knives have to be reground. Knives must be removed for both cleaning and regrinding. The knives, which are attached to the frame by means of tension hooks, are removed however not individually, but in the clamped state together with the associated gate frame.
  • the invention has for its object to propose a bread slicer in which the change of the knife gate can be carried out much easier.
  • this object is achieved according to the invention in that the gate frames can be clamped between the drive device and the guide device and can be removed as a whole from the bread slicer.
  • the clamping of the gate frame between the drive device and the guide device makes it possible to fix the gate frame by manipulation on only one side of the gate frame, namely either on the drive device side or on the guide device side.
  • Establishing or releasing separate connections both between one side of the gate frame and the drive device and also between the other side of the gate frame and the guide device - as is the case with machines according to the prior art Case is - is unnecessary in the machine according to the invention.
  • the dismantling and reassembly of the gate frames is thus particularly simple in the solution according to the invention.
  • the change of the frame can consequently be carried out easily by the operating personnel of such bread slicing machines, so that specially trained service personnel are no longer required for this process.
  • the operating costs for the machine according to the invention can therefore be reduced considerably.
  • a particularly advantageous embodiment of the invention consists in that the gate frames can be clamped in by means of tie rods.
  • the gate frames can be fixed in a particularly simple manner in the feed direction of the loaf of bread to be cut, but also perpendicular to it.
  • a cross bar rotatably mounted therein extends between two drive rockers of the drive device, with which the tension rods can be connected.
  • the rocker structure thus essentially consists of two rocker arms which are fixedly connected to the drive shaft and two cross rods which are articulated on both sides thereof to the rocker arms and which can absorb the transverse forces required to support the ends of the gate frame.
  • the tension rods are provided at one end with a hand knob and at the opposite end with an external thread which can be screwed into a corresponding threaded hole in a disk connected to the cross rod.
  • the cross bar engages in a clamped state in the facing end of a profile of the gate frame in the clamped state of the knife gate. This enables a very simple and effective securing of the gate frame against displacement in the feed direction of the bread to be cut.
  • the disks are provided on one end face with two projections which, when the crossbar approaches the wall of the recess in conjunction with the end face of the facing profile piece of the gate frame, cause the disk to rotate about the longitudinal axis of the crossbar such that the central axis of the threaded bore parallel to the central axis of the tension rods in the tensioned state, the threaded hole in the washer is always in a position during assembly in which the ends of the tension rods provided with the external thread can be inserted without difficulty.
  • a further development of the invention consists in that a guide plate provided with a bore for the passage of the tensioning rod is provided in the profile piece, whereby the assembly process of the gate frame is further simplified.
  • the tensioning rod has at least one stop element projecting radially outward through its jacket, which is supported on the side of the guide plate facing away from the hand knob when the knife gate is raised.
  • a gate frame can be removed from the bread slicer by simply grasping the knobs together with the tie rods.
  • the tie rods and the gate frame thus remain together even when the frame is disassembled, so that the tie rods cannot be installed.
  • the gate frame is made of light metal profile parts, whereby its weight can be drastically reduced compared to known steel constructions. This measure further simplifies the assembly and disassembly process and enables the change of the gate frame to be carried out by female operating personnel.
  • the bread slicer 1 shown in FIGS. 1 and 2 has a machine housing 3 which is movably mounted on rollers 2 and in which two knife gates 4v and 4h which can be driven in opposite directions and are oscillating are mounted.
  • the knife gates 4v and 4h each consist of a plurality of Elongated knives 5 running equidistantly parallel to one another with a wavy ground cutting edge.
  • the knives 5 are each fastened to a gate frame 7v and 7h by means of lower and upper hooks 6u and 6o.
  • the knives 5 of both knife gates 4v and 4h lie with their cutting edges essentially in one plane, adjacent knives 5 each being attached to different gate frames 7v and 7h, so that they execute an oppositely oscillating movement.
  • the drive of the knife gates 4v and 4h or the frame frames 7v and 7h holding them takes place via two drive arms 9 which are offset on a support shaft 8 and are connected to them in a torque-proof manner.
  • the drive arm 9 arranged on the left in FIG End is provided with a pin end of a push rod 11 is rotatably mounted.
  • the other end of the push rod 11 is rotatably connected to a crank 12 which is set in rotation by the drive shaft of an electric motor 13.
  • crank 12 shown in FIG. 2 at the level of the drive shaft of the electric motor 13 causes a rocking movement of the drive rockers 9, which, in conjunction with the upper guide of the gate frames 7v and 7h, causes them to oscillate in opposite directions.
  • each gate frame 7v and 7h takes place by means of two guide rockers 14h and 14v arranged at a distance from one another. These consist of a rubber-like polymer material and are therefore very strongly elastically deformable without fatigue occurring even with a very large number of load cycles.
  • the guide rockers 14v and 14h are fastened at their ends facing away from the frame 7v and 7h with screws to a profile 15 of the machine housing 3.
  • they are each connected to the upper sides of the gate frames 7v and 7h via an L-shaped bracket 16v and 16h.
  • the one in the feed direction Tabs 16h leading further back frame 7h are longer by the gate spacing than tabs 16v leading to front gate frame 7v.
  • the gate frames 7v and 7h are shown in a dead center position of the crank 12, in which the rockers 9 have also reached their dead center position which can be achieved by turning counterclockwise. In this position, the upper sides of the gate frames 7v and 7h lie in one plane, so that both the guide rockers 14v and 14h and the tabs 16v and 16h connected thereto overlap.
  • the rear gate frame 7h visible in FIG. 2 is composed of two vertical profile pieces 17 and two horizontal profile pieces 18 arranged between them.
  • the profile pieces 17 and 18, which have a rounded rectangular cross-section, are welded together and consist of an aluminum alloy, so that the gate frame 7h formed therefrom has a very low weight.
  • the front gate frame 7v is constructed identically.
  • the vertical profile pieces 17 extend beyond both the lower and the upper horizontal profile piece 18.
  • the vertical profile piece 17, designed as a hollow profile is closed on its upper side with a cover sheet 19.
  • this cover plate 19 there is a bore through which a tension rod 20 is guided, which extends in the interior almost over the entire length of the vertical profile piece 17.
  • the tension rod 20 is provided with an ergonomically shaped hand knob 21 connected to it in a torque-proof manner.
  • the tab 16v leading to the guide rocker 14v is located between a lower stop surface of the hand knob 21 and the upper side of the cover plate 19.
  • This tab 16v is provided at its end facing away from the guide rocker 14v with a laterally open elongated hole extending perpendicularly to the feed direction (arrow 22 in FIG. 1), into which the tension rod 20 can be inserted laterally.
  • the upper fastening of the rear gate frame 7h is carried out in the same way.
  • FIG 4 it is shown that the vertical profile part 17 of the gate frame 7v is provided at its lower end with an approximately semicircular recess 23.
  • a transverse rod 24 extending between the drive rockers 9 engages in these recesses 23.
  • the cross bar 24, which is circular in cross section, is rotatably supported within the drive rockers 9 by means of roller bearings 25. The ends projecting axially outward over the bearing in the drive rockers 9 serve to transmit the transverse forces to be introduced into the vertical profile pieces 17 of the gate frames 7v and 7h.
  • the disks 25 are each provided with a threaded bore on their upper side, into which - as shown in the figures - the tension rods 22, which are designed as threaded rods, are screwed with their ends.
  • the frame 7v and 7h can be clamped between the crossbar 24 of the drive device (on the underside) and the tabs 16v and 16h of the guide device (on the top). can be achieved.
  • the bracing is effected solely by screwing in by hand, since a sufficiently large tightening torque for the tie rods 22 can be easily applied via the ergonomically and generously dimensioned hand knobs 21.
  • a guide plate 26 is provided in the interior of the vertical profile piece 17, which is provided with a bore through which the tension rod 22 is passed.
  • the bore is only insignificantly larger than the outer diameter of the tension rod 22, so that the tension rod 22 is guided with little play. In this way, the central axis of the tie rod 22 is aligned with the central axis of the transverse rod 24 with sufficient accuracy.
  • the disk 24 is provided with two cylindrical pins 26 (see FIGS. 2 and 4) projecting beyond both sides of its side surfaces.
  • the cylindrical pins 26 When the lower ends of the vertical profile pieces 17 are placed on the disks 25, the cylindrical pins 26 always bring about such an alignment of the disks 25 rotatable on the crossbar 24 that the longitudinal axis of the threaded bore is aligned with the longitudinal axis of the tensioning rod 22.
  • the tensioning rods 22 can thus be screwed in straight away without the need for a number of attempts to align the disks 25.
  • the cylinder pins 26 are arranged in such a way that the power transmission during operation of the machine 1 takes place solely via the wall of the recess 23 and the crossbar 24 and not via the cylinder pins 26, which are therefore in the clamped state (FIG. 4) at a short distance from one another the end face of the vertical profile piece 17.

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

Abstract

The cutter frames (7v,7h) each have several spaced elongated blades and each frame can be clamped without tools between the oscillating drive unit and the guide device and can be removed as a whole from the slicing machine. The frames can be clamped by tension rods (22) running inside the hollow profiled section (17) of the frames.

Description

Die Erfindung betrifft eine Brotschneidemaschine mit zwei gegenläufig oszillierend antreibbaren Messergattern, die jeweils mit einer Mehrzahl von im Abstand parallel zueinander verlaufenden langgestreckten Messern versehen sind und durch die ein zu schneidender Brotlaib hindurchführbar und dabei in Scheiben schneidbar ist, wobei jedes Messergatter einen Gatterrahmen aufweist, der an einer Seite mit mindestens einer Antriebseinrichtung und an einer gegenüberliegenden Seite mit mindestens einer Führungseinrichtung verbunden ist.The invention relates to a bread slicer with two oppositely oscillating knife gates, each of which is provided with a plurality of elongated knives running parallel to one another and through which a loaf of bread to be cut can be passed and cut into slices, each knife gate having a gate frame which is connected on one side to at least one drive device and on an opposite side to at least one guide device.

Derartige Schneidmaschinen sind beispielsweise aus der DE 93 15 185 U1 und der DE 296 02 579 U1 bekannt. Die Messer der beiden Gatter sind versetzt zueinander angeordnet und stehen so über die Ebene der Gatterrahmen vor, daß sie in Vorschubrichtung gesehen ungefähr in einer Ebene liegen und quer zur Vorschubrichtung gesehen abwechselnd ein Messer des einen und ein Messer des anderen Messergatters nebeneinander angeordnet sind. Durch die gegenläufig angetriebenen Messergatter kann verhindert werden, daß ein zu schneidender Brotlaib bei einer Aufwärtsbewegung der Messer von der Aufstandsfläche abgehoben wird.Such cutting machines are known for example from DE 93 15 185 U1 and DE 296 02 579 U1. The knives of the two gates are offset from one another and protrude beyond the plane of the gate frame in such a way that they are approximately in one plane when viewed in the feed direction and alternately a knife of one and a knife of the other knife gate are arranged next to one another when viewed transversely to the feed direction. The knife gates which are driven in opposite directions can prevent a loaf of bread to be cut from being lifted off the contact surface when the knives move upward.

Die Antriebseinrichtungen derartiger Brotsehneidemaschinen bestehen aus Antriebsschwingen, an denen beidseitig der Schwingendrehachse jeweils ein Gatterrahmen befestigt ist. Üblicherweise sind die Führungseinrichtungen ebenfalls als Schwingen ausgebildet, wobei aus Kostengründen häufig auf eine wippenartige Schwinge verzichtet wird und vielmehr blattfederartige Schwingen verwendet werden, die jeweils einseitig mit dem Maschinengehäuse verbunden sind.The drive devices of such bread slicing machines consist of drive rockers, to which a frame frame is attached on both sides of the swing axis of rotation. Usually, the guide devices are also designed as rockers, a rocker-type rocker often being dispensed with for cost reasons, and rather leaf spring-like rockers, which are each connected on one side to the machine housing.

Derartige Brotschneidemaschinen werden in der Regel mit einer Einrichtung zur Messerbeölung ausgerüstet, die die Reibung zwischen den Messerflanken und dem Brot verringern soll. Aufgrund des an den Messern haftenden Ölfilms setzen sich dort vermehrt Brotkrümel und Mehlstaub fest, so daß die Gatter regelmäßig gereinigt werden müssen. Des weiteren ist nach einer gewissen Betriebszeit ein Nachschleifen der Messer erforderlich. Sowohl zum Reinigen als auch zum Nachschleifen ist ein Ausbauen der Messer erforderlich. Der Ausbau der Messer, die mittels Spannhaken an den Gatterrahmen befestigt sind, erfolgt jedoch nicht einzeln, sondern im eingespannten Zustand zusammen mit dem zugehörigen Gatterrahmen.Bread slicers of this type are generally equipped with a device for oiling the knife, which is intended to reduce the friction between the flanks of the knife and the bread. Due to the oil film adhering to the knives, bread crumbs and flour dust increasingly accumulate there, so that the gates have to be cleaned regularly. Furthermore, after a certain operating time, the knives have to be reground. Knives must be removed for both cleaning and regrinding. The knives, which are attached to the frame by means of tension hooks, are removed however not individually, but in the clamped state together with the associated gate frame.

Bei den Brotschneidemaschinen nach dem Stand der Technik ist es als nachteilig anzusehen, daß der Ausbau der Messergatter sehr kompliziert ist. Es bedarf hierzu der Demontage einer Vielzahl von Bauteilen sowie des Lösens zahlreicher Schraubverbindungen. Bei der Demontage der Messergatter ist der Einsatz diverser Werkzeuge unverzichtbar, weshalb der Austausch der Messergatter bei den bekannten Maschinen, die in der Regel in Bäckereien bzw. Brotverkaufsstellen aufgestellt sind, von dem dort beschäftigten Bedienpersonal nicht durchgeführt werden kann. Vielmehr muß der Wechsel der Messergatter von speziell ausgebildetem Servicepersonal des Herstellers derartiger Brotschneidemaschinen ausgeführt werden. Hierdurch werden die laufenden Kosten für den Betrieb der bekannten Brotschneidemaschinen nicht unerheblich erhöht.In the case of the bread slicers according to the prior art, it is disadvantageous that the removal of the knife gate is very complicated. This requires the dismantling of a large number of components and the loosening of numerous screw connections. The use of various tools is indispensable when disassembling the knife gates, which is why the operating staff employed there cannot replace the knife gates on the known machines, which are usually installed in bakeries or bread shops. Rather, the change of the knife gate must be carried out by specially trained service personnel from the manufacturer of such bread slicing machines. This not inconsiderably increases the running costs for the operation of the known bread slicing machines.

Der Erfindung liegt die Aufgabe zugrunde, eine Brotschneidemaschine vorzuschlagen, bei der der Wechsel der Messergatter wesentlich einfacher durchgeführt werden kann.The invention has for its object to propose a bread slicer in which the change of the knife gate can be carried out much easier.

Ausgehend von einer Brotschneidemaschine der eingangs beschriebenen Art, wird diese Aufgabe erfindungsgemäß dadurch gelöst, daß die Gatterrahmen jeweils zwischen der Antriebseinrichtung und der Führungseinrichtung einspannbar und als Ganzes aus der Brotschneidemaschine entnehmbar sind.Starting from a bread slicer of the type described in the introduction, this object is achieved according to the invention in that the gate frames can be clamped between the drive device and the guide device and can be removed as a whole from the bread slicer.

Die Einspannung der Gatterrahmen zwischen der Antriebseinrichtung und der Führungseinrichtung ermöglicht es, die Befestigung der Gatterrahmen durch Manipulation an nur einer Seite des Gatterrahmens vorzunehmen, nämlich entweder auf der Seite der Antriebseinrichtung oder auf der Seite der Führungseinrichtung. Das Herstellen bzw. Lösen separater Verbindungen sowohl zwischen einer Seite des Gatterrahmens und der Antriebseinrichtung als auch zwischen der anderen Seite des Gatterrahmens und der Führungseinrichtung - wie dies bei Maschinen nach dem Stand der Technik durchgängig der Fall ist - ist bei der Maschine gemäß der Erfindung entbehrlich. In Verbindung mit der Möglichkeit zur werkzeuglosen Einspannung mit Hilfe geeigneter von Hand bedienbarer Grille, Knäufe oder Hebel ist die Demontage und Remontage der Gatterrahmen somit bei der erfindungsgemäßen Lösung besonders einfach. Der Wechsel der Rahmen kann folglich ohne weiteres auch vom Bedienpersonal derartiger Brotschneidemaschinen durchgeführt werden, so daß speziell ausgebildetes Servicepersonal für diesen Vorgang nicht mehr benötigt wird. Die Betriebskosten für die erfindungsgemäße Maschine können daher erheblich gesenkt werden.The clamping of the gate frame between the drive device and the guide device makes it possible to fix the gate frame by manipulation on only one side of the gate frame, namely either on the drive device side or on the guide device side. Establishing or releasing separate connections both between one side of the gate frame and the drive device and also between the other side of the gate frame and the guide device - as is the case with machines according to the prior art Case is - is unnecessary in the machine according to the invention. In connection with the possibility of tool-free clamping with the aid of suitable hand-operated grills, knobs or levers, the dismantling and reassembly of the gate frames is thus particularly simple in the solution according to the invention. The change of the frame can consequently be carried out easily by the operating personnel of such bread slicing machines, so that specially trained service personnel are no longer required for this process. The operating costs for the machine according to the invention can therefore be reduced considerably.

Eine besonders vorteilhafte Ausgestaltung der Erfindung besteht darin, daß die Gatterrahmen mittels Spannstangen einspannbar sind.A particularly advantageous embodiment of the invention consists in that the gate frames can be clamped in by means of tie rods.

Wenn die Spannstangen im eingespannten Zustand der Gatterrahmen auf Zug beansprucht sind, bedarf es zwischen der Antriebseinrichtung und der Führungseinrichtung keiner weiteren Verbindung als durch die Spannstangen. Die Maschinenkonstruktion wird auf diese Weise besonders einfach und es kann eine besonders einfache Gestaltung der Führungsschwinge realisiert werden.If the tension rods are tensioned in the clamped state of the gate frame, no further connection is required between the drive device and the guide device than through the tension rods. In this way, the machine construction becomes particularly simple and a particularly simple design of the guide rocker can be realized.

Indem die Spannstangen innerhalb eines vorzugsweise als Hohlprofil ausgebildeten Profilstücks des Gatterrahmens verlaufen, laßt sich auf besonders einfache Weise eine Fixierung der Gatterrahmen in Vorschubrichtung des zu schneidenden Brotlaibs aber auch senkrecht dazu erzielen.Since the tensioning rods run within a profile piece of the gate frame, which is preferably designed as a hollow profile, the gate frames can be fixed in a particularly simple manner in the feed direction of the loaf of bread to be cut, but also perpendicular to it.

Des weiteren wird gemäß einer Ausgestaltung der Erfindung vorgeschlagen, daß sich jeweils zwischen zwei Antriebsschwingen der Antriebseinrichtung eine drehbar darin gelagerte Querstange erstreckt, mit der die Spannstangen verbindbar sind. Die Schwingenkonstruktion besteht somit im wesentlichen aus zwei fest mit der Antriebswelle verbundenen Schwinghebeln und zwei beidseitig davon gelenkig mit den Schwinghebeln verbundenen Querstangen, die die zur Abstützung der Enden der Gatterrahmen erforderlichen Querkräfte aufnehmen können.Furthermore, according to one embodiment of the invention, it is proposed that a cross bar rotatably mounted therein extends between two drive rockers of the drive device, with which the tension rods can be connected. The rocker structure thus essentially consists of two rocker arms which are fixedly connected to the drive shaft and two cross rods which are articulated on both sides thereof to the rocker arms and which can absorb the transverse forces required to support the ends of the gate frame.

Die Erfindung weiter ausgestaltend wird vorgeschlagen, daß die Spannstangen an einem Ende mit einem Handknauf und an dem gegenüberliegenden Ende mit einem Außengewinde versehen sind, das in eine entsprechende Gewindebohrung in einer mit der Querstange verbundenen Scheibe einschraubbar ist.Developing the invention further, it is proposed that the tension rods are provided at one end with a hand knob and at the opposite end with an external thread which can be screwed into a corresponding threaded hole in a disk connected to the cross rod.

Auf die vorbeschriebene Weise läßt sich eine besonders einfache Befestigung der Spannstangen an der Antriebseinrichtung ermöglichen, bei der auch die erforderliche Materialstärke für eine hinreichend lange Gewindebohrung zur Verfügung steht.In the manner described above, a particularly simple fastening of the tension rods to the drive device can be made possible, in which the required material thickness is also available for a sufficiently long threaded hole.

Ferner ist vorgesehen, daß die Querstange im eingespannten Zustand des Messergatters in eine angepaßte Ausnehmung in der zugewandten Stirnseite eines Profils des Gatterrahmens eingreift. Hierdurch kann eine sehr einfache und wirkungsvolle Sicherung des Gatterrahmens gegen eine Verschiebung in Vorschubrichtung des zu schneidenden Brotes geschaffen werden.It is further provided that the cross bar engages in a clamped state in the facing end of a profile of the gate frame in the clamped state of the knife gate. This enables a very simple and effective securing of the gate frame against displacement in the feed direction of the bread to be cut.

Wenn die Scheiben an einer Stirnseite mit zwei Vorsprüngen versehen sind, die bei der Annäherung der Querstange an die Wandung der Ausnehmung in Verbindung mit der Stirnseite des zugewandten Profilstücks des Gatterrahmens eine solche Drehung der Scheibe um die Längsachse der Querstange bewirken, daß die Mittelachse der Gewindebohrung parallel zur Mittelachse der Spannstangen im gespannten Zustand verläuft, befindet sich die Gewindebohrung in der Scheibe bei der Montage stets in einer Position, in der sich die mit dem Außengewinde versehenen Enden der Spannstangen ohne Schwierigkeiten einführen lassen.If the disks are provided on one end face with two projections which, when the crossbar approaches the wall of the recess in conjunction with the end face of the facing profile piece of the gate frame, cause the disk to rotate about the longitudinal axis of the crossbar such that the central axis of the threaded bore parallel to the central axis of the tension rods in the tensioned state, the threaded hole in the washer is always in a position during assembly in which the ends of the tension rods provided with the external thread can be inserted without difficulty.

Eine Weiterbildung der Erfindung besteht darin, daß in dem Profilstück ein mit einer Bohrung zur Durchführung der Spannstange versehenes Führungsblech vorgesehen ist, wodurch der Montagevorgang des Gatterrahmens weiter vereinfacht wird.A further development of the invention consists in that a guide plate provided with a bore for the passage of the tensioning rod is provided in the profile piece, whereby the assembly process of the gate frame is further simplified.

Außerdem wird vorgeschlagen, daß die Spannstange mindestens ein über ihren Mantel radial nach außen vorstehendes Anschlagelement aufweist, das sich beim Anheben der Messergatter an den Handknäufen an der dem Handknauf abgewandten Seite des Führungsblechs abstützt.In addition, it is proposed that the tensioning rod has at least one stop element projecting radially outward through its jacket, which is supported on the side of the guide plate facing away from the hand knob when the knife gate is raised.

Bei einer derartigen Ausgestaltung läßt sich ein Gatterrahmen durch einfaches Anfassen an den Handknäufen zusammen mit den Spannstangen aus der Brotschneidemaschine entnehmen. Die Spannstangen und der Gatterrahmen bleiben somit auch im demontierten Zustand des Rahmens zusammen, so daß die Spannstangen nicht verlegt werden können.In such an embodiment, a gate frame can be removed from the bread slicer by simply grasping the knobs together with the tie rods. The tie rods and the gate frame thus remain together even when the frame is disassembled, so that the tie rods cannot be installed.

Schließlich ist noch vorgesehen, daß der Gatterrahmen aus Leichtmetall-Profilteilen hergestellt ist, wodurch dessen Gewicht gegenüber bekannten Konstruktionen aus Stahl drastisch reduziert werden kann. Diese Maßnahme vereinfacht den Montage- und Demontageprozeß weiter und ermöglicht es, daß der Wechsel der Gatterrahmen auch von weiblichem Bedienpersonal durchgeführt werden kann.Finally, it is provided that the gate frame is made of light metal profile parts, whereby its weight can be drastically reduced compared to known steel constructions. This measure further simplifies the assembly and disassembly process and enables the change of the gate frame to be carried out by female operating personnel.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels, das in der Zeichnung dargestellt ist, näher erläutert. Es zeigt:

Figur 1
eine Seitenansicht einer Brotschneidemaschine,
Figur 2
eine Vorderansicht der Brotschneidemaschine,
Figur 3
eine vergrößerte Darstellung eines oberen Endes einer Spannstange und
Figur 4
eine vergrößerte Darstellung des unteren Endes der Spannstange gemäß Figur 3.
The invention is explained in more detail below using an exemplary embodiment which is illustrated in the drawing. It shows:
Figure 1
a side view of a bread slicer,
Figure 2
a front view of the bread slicer,
Figure 3
an enlarged view of an upper end of a tie rod and
Figure 4
an enlarged view of the lower end of the tension rod according to Figure 3.

Die in den Figuren 1 und 2 dargestellte Brotschneidemaschine 1 besitzt ein auf Rollen 2 fahrbar gelagertes Maschinengehäuse 3, in dem zwei gegenläufig oszillierend antreibbare Messergatter 4v und 4h gelagert sind. Die Messergatter 4v und 4h bestehen jeweils aus einer Mehrzahl von äquidistant parallel zueinander verlaufenden langgestreckten Messern 5 mit einer wellenförmig geschliffenen Schneidkante. Die Messer 5 sind jeweils mittels unterer und oberer Haken 6u und 6o an jeweils einem Gatterrahmen 7v und 7h befestigt.The bread slicer 1 shown in FIGS. 1 and 2 has a machine housing 3 which is movably mounted on rollers 2 and in which two knife gates 4v and 4h which can be driven in opposite directions and are oscillating are mounted. The knife gates 4v and 4h each consist of a plurality of Elongated knives 5 running equidistantly parallel to one another with a wavy ground cutting edge. The knives 5 are each fastened to a gate frame 7v and 7h by means of lower and upper hooks 6u and 6o.

Die Messer 5 beider Messergatter 4v und 4h liegen mit ihren Schneidkanten im wesentlichen in einer Ebene, wobei benachbarte Messer 5 jeweils an verschiedenen Gatterrahmen 7v bzw. 7h befestigt sind, so daß sie eine gegenläufig oszillierende Bewegung ausführen.The knives 5 of both knife gates 4v and 4h lie with their cutting edges essentially in one plane, adjacent knives 5 each being attached to different gate frames 7v and 7h, so that they execute an oppositely oscillating movement.

Der Antrieb der Messergatter 4v und 4h bzw. der diese haltenden Gatterrahmen 7v und 7h erfolgt über zwei auf einer Tragwelle 8 versetzt angeordnete und drehmomentfest damit verbundene Antriebsschwingen 9. Die in Figur 2 links angeordnete Antriebsschwinge 9 ist mit einem Arm 10 versehen, in dessen unterem Ende ein mit einem Zapfen versehenes Ende einer Schubstange 11 drehbar gelagert ist. Das andere Ende der Schubstange 11 ist drehbar mit einer Kurbel 12 verbunden, die von der Antriebswelle eines Elektromotors 13 in Rotation versetzt wird.The drive of the knife gates 4v and 4h or the frame frames 7v and 7h holding them takes place via two drive arms 9 which are offset on a support shaft 8 and are connected to them in a torque-proof manner. The drive arm 9 arranged on the left in FIG End is provided with a pin end of a push rod 11 is rotatably mounted. The other end of the push rod 11 is rotatably connected to a crank 12 which is set in rotation by the drive shaft of an electric motor 13.

Die Drehung der in Figur 2 in Höhe der Antriebswelle des Elektromotors 13 gezeigten Kurbel 12 bewirkt eine wippende Bewegung der Antriebsschwingen 9, die in Verbindung mit der oberen Führung der Gatterrahmen 7v und 7h deren gegenläufig oszillierende Bewegung bewirkt.The rotation of the crank 12 shown in FIG. 2 at the level of the drive shaft of the electric motor 13 causes a rocking movement of the drive rockers 9, which, in conjunction with the upper guide of the gate frames 7v and 7h, causes them to oscillate in opposite directions.

Die obere Führung jedes Gatterrahmens 7v und 7h erfolgt mittels jeweils zwei im Abstand zueinander angeordneter Führungsschwingen 14h und 14v. Diese bestehen aus einem gummiartigen Polymermaterial und sind daher sehr stark elastisch verformbar, ohne daß auch bei einer sehr großen Zahl von Lastspielen eine Materialermüdung auftritt. Die Führungsschwingen 14v und 14h sind an ihren den Gatterrahmen 7v und 7h abgewandten Enden mit Schrauben an einem Profil 15 des Maschinengehäuses 3 befestigt. Auf der gegenüberliegenden Seite sind sie jeweils über eine L-förmig abgewinkelte Lasche 16v und 16h mit den Oberseiten der Gatterrahmen 7v und 7h verbunden. Die zu dem in Vorschubrichtung weiter hinten liegenden Gatterrahmen 7h führenden Laschen 16h sind dabei um den Gatterabstand länger ausgeführt als die zu dem vorderen Gatterrahmen 7v führenden Laschen 16v.The upper guidance of each gate frame 7v and 7h takes place by means of two guide rockers 14h and 14v arranged at a distance from one another. These consist of a rubber-like polymer material and are therefore very strongly elastically deformable without fatigue occurring even with a very large number of load cycles. The guide rockers 14v and 14h are fastened at their ends facing away from the frame 7v and 7h with screws to a profile 15 of the machine housing 3. On the opposite side, they are each connected to the upper sides of the gate frames 7v and 7h via an L-shaped bracket 16v and 16h. The one in the feed direction Tabs 16h leading further back frame 7h are longer by the gate spacing than tabs 16v leading to front gate frame 7v.

In Figur 1 sind die Gatterrahmen 7v und 7h in einer Totpunktposition der Kurbel 12 dargestellt, in der die Schwingen 9 ebenfalls ihre durch Drehung entgegen dem Uhrzeigersinn erreichbare Totpunktposition erreicht haben. In dieser Position liegen die Oberseiten der Gatterrahmen 7v und 7h in einer Ebene, so daß sowohl die Führungsschwingen 14v und 14h als auch die damit verbundenen Laschen 16v und 16h sich überdecken.In Figure 1, the gate frames 7v and 7h are shown in a dead center position of the crank 12, in which the rockers 9 have also reached their dead center position which can be achieved by turning counterclockwise. In this position, the upper sides of the gate frames 7v and 7h lie in one plane, so that both the guide rockers 14v and 14h and the tabs 16v and 16h connected thereto overlap.

In jeweils gestrichelt dargestellten Stellungen der Führungsschwingen 14v und 14h befinden sich diese in ihrer oberen bzw. unteren Totpunktstellung, so daß die Laschen 16v und 16h sich dann im Abstand des doppelten Messerhubs befinden.In each case shown in dashed lines of the guide rockers 14v and 14h, these are in their upper and lower dead center position, so that the tabs 16v and 16h are then at a distance of twice the knife stroke.

Der in Figur 2 sichtbare hintere Gatterrahmen 7h ist aus zwei vertikalen Profilstücken 17 und zwei zwischen diesen angeordneten horizontalen Profilstücken 18 zusammengesetzt. Die Profilstücke 17 und 18, die einen abgerundeten Rechteckquerschnitt aufweisen, sind miteinander verschweißt und bestehen aus einer Aluminiumlegierung, so daß der daraus gebildete Gatterrahmen 7h ein sehr geringes Gewicht aufweist. Der vordere Gatterrahmen 7v ist identisch aufgebaut.The rear gate frame 7h visible in FIG. 2 is composed of two vertical profile pieces 17 and two horizontal profile pieces 18 arranged between them. The profile pieces 17 and 18, which have a rounded rectangular cross-section, are welded together and consist of an aluminum alloy, so that the gate frame 7h formed therefrom has a very low weight. The front gate frame 7v is constructed identically.

Die vertikalen Profilstücke 17 reichen sowohl über das untere als auch über das obere horizontale Profilstück 18 hinaus. Wie sich insbesondere aus Figur 3 ergibt, ist das als Hohlprofil ausgebildete vertikale Profilstück 17 an seiner Oberseite mit einem Deckbleck 19 verschlossen. In diesem Deckblech 19 befindet sich eine Bohrung, durch die eine Spannstange 20 hindurchgeführt ist, die sich im Innern nahezu über die gesamte Länge des vertikalen Profilstücks 17 erstreckt. Am oberen Ende ist die Spannstange 20 mit einem drehmomentfest damit verbundenen und ergonomisch geformten Handknauf 21 versehen.The vertical profile pieces 17 extend beyond both the lower and the upper horizontal profile piece 18. As can be seen in particular from FIG. 3, the vertical profile piece 17, designed as a hollow profile, is closed on its upper side with a cover sheet 19. In this cover plate 19 there is a bore through which a tension rod 20 is guided, which extends in the interior almost over the entire length of the vertical profile piece 17. At the upper end, the tension rod 20 is provided with an ergonomically shaped hand knob 21 connected to it in a torque-proof manner.

Zwischen einer unteren Anschlagfläche des Handknaufs 21 und der Oberseite des Deckblechs 19 befindet sich die zu der Führungsschwinge 14v führende Lasche 16v. Diese Lasche 16v ist an ihrem der Führungsschwinge 14v abgewandten Ende mit einem sich senkrecht zur Vorschubrichtung (Pfeil 22 in Figur 1) erstreckenden seitlich offenen Langloch versehen, in das die Spannstange 20 seitlich eingeführt werden kann. Die obere Befestigung des hinteren Gatterrahmens 7h erfolgt auf die gleiche Weise.The tab 16v leading to the guide rocker 14v is located between a lower stop surface of the hand knob 21 and the upper side of the cover plate 19. This tab 16v is provided at its end facing away from the guide rocker 14v with a laterally open elongated hole extending perpendicularly to the feed direction (arrow 22 in FIG. 1), into which the tension rod 20 can be inserted laterally. The upper fastening of the rear gate frame 7h is carried out in the same way.

In Figur 4 ist dargestellt, daß das vertikale Profilteil 17 des Gatterrahmens 7v an seinem unteren Ende mit einer ungefähr halbrunden Aussparung 23 versehen ist. In der in den Figuren dargestellten Betriebsposition der Gatterrahmen 7v und 7h greift jeweils eine sich zwischen den Antriebsschwingen 9 erstreckende Querstange 24 in diese Aussparungen 23 ein. Die im Querschnitt kreisförmige Querstange 24 ist mit Hilfe von Wälzlagerungen 25 innerhalb der Antriebsschwingen 9 drehbar gelagert. Die über die Lagerung in den Antriebsschwingen 9 axial nach außen vorstehenden Enden dienen zur Übertragung der in die vertikalen Profilstücke 17 der Gatterrahmen 7v und 7h einzuleitenden Querkräfte.In Figure 4 it is shown that the vertical profile part 17 of the gate frame 7v is provided at its lower end with an approximately semicircular recess 23. In the operating position of the gate frames 7v and 7h shown in the figures, a transverse rod 24 extending between the drive rockers 9 engages in these recesses 23. The cross bar 24, which is circular in cross section, is rotatably supported within the drive rockers 9 by means of roller bearings 25. The ends projecting axially outward over the bearing in the drive rockers 9 serve to transmit the transverse forces to be introduced into the vertical profile pieces 17 of the gate frames 7v and 7h.

Während die Fixierung der Gatterrahmen 7v und 7h in Vorschubrichtung mittels der an die Querstangen 24 angepaßten halbkreisförmigen Aussparungen 23 erfolgt, ist die Fixierung der Gatterrahmen 7v und 7h quer zur Vorschubrichtung derart realisiert, daß die Enden der vertikalen Profilstücke 17 jeweils auf eine koaxial auf der Querstange 24 befestigte Scheibe 25 aufgeschoben ist. Die Breite der Scheibe 25 ist daher kleiner als die Innenbreite des Profilstücks 17 und der Durchmesser der Scheibe 25 kleiner als die lichte Tiefe des Profilstücks 17.While the frame 7v and 7h are fixed in the feed direction by means of the semicircular recesses 23 adapted to the crossbars 24, the frame 7v and 7h are fixed transversely to the feed direction in such a way that the ends of the vertical profile pieces 17 each coaxially on the crossbar 24 attached disc 25 is pushed. The width of the disk 25 is therefore smaller than the inner width of the profile piece 17 and the diameter of the disk 25 smaller than the inside depth of the profile piece 17th

Die Scheiben 25 sind an ihrer Oberseite jeweils mit einer Gewindebohrung versehen, in die - wie in den Figuren dargestellt - die Spannstangen 22, die insgesamt als Gewindestangen ausgeführt sind, mit ihren Enden eingeschraubt sind. Auf diese Weise kann eine Einspannung der Gatterrahmen 7v und 7h jeweils zwischen der Querstange 24 der Antriebseinrichtung (auf der Unterseite) und den Laschen 16v und 16h der Führungseinrichtung (auf der Oberseite) erreicht werden. Die Verspannung wird allein durch Einschrauben von Hand bewirkt, da sich über die ergonomisch und großzügig dimensionierten Handknäufe 21 problemlos ein hinreichend großes Anzugsdrehmoment für die Spannstangen 22 aufbringen läßt.The disks 25 are each provided with a threaded bore on their upper side, into which - as shown in the figures - the tension rods 22, which are designed as threaded rods, are screwed with their ends. In this way, the frame 7v and 7h can be clamped between the crossbar 24 of the drive device (on the underside) and the tabs 16v and 16h of the guide device (on the top). can be achieved. The bracing is effected solely by screwing in by hand, since a sufficiently large tightening torque for the tie rods 22 can be easily applied via the ergonomically and generously dimensioned hand knobs 21.

Um bei einer Montage der Gatterrahmen 7v und 7h das Einführen der Spannstangen 22 in die Gewindebohrungen der Scheiben 25 zu erleichtern, ist im Innern des vertikalen Profilstücks 17 ein Führungsblech 26 angeordnet, das mit einer Bohrung versehen ist, durch die die Spannstange 22 hindurchgeführt ist. Die Bohrung ist nur unwesentlich größer als der Außendurchmesser der Spannstange 22, so daß sich eine spielarme Führung der Spannstange 22 ergibt. Auf diese Weise ist die Mittelachse der Spannstange 22 hinreichend exakt auf die Mittelachse der Querstange 24 ausgerichtet.In order to facilitate the insertion of the tension rods 22 into the threaded bores of the disks 25 during assembly of the gate frames 7v and 7h, a guide plate 26 is provided in the interior of the vertical profile piece 17, which is provided with a bore through which the tension rod 22 is passed. The bore is only insignificantly larger than the outer diameter of the tension rod 22, so that the tension rod 22 is guided with little play. In this way, the central axis of the tie rod 22 is aligned with the central axis of the transverse rod 24 with sufficient accuracy.

Des weiteren ist die Scheibe 24 mit zwei beidseitig über ihre Seitenflächen vorstehenden Zylinderstiften 26 (vgl. Figuren 2 und 4) versehen. Beim Aufsetzen der unteren Enden der vertikalen Profilstücke 17 auf die Scheiben 25, bewirken die Zylinderstifte 26 stets eine derartige Ausrichtung der auf der Querstange 24 drehbaren Scheiben 25, daß die Längsachse der Gewindebohrung mit der Längsachse der Spannstange 22 fluchtet. Das Einschrauben der Spannstangen 22 gelingt somit auf Anhieb, ohne daß hierzu eine Mehrzahl von Versuchen zur Ausrichtung der Scheiben 25 erforderlich ist. Dabei sind die Zylinderstifte 26 derart angeordnet, daß die Kraftübertragung im Betrieb der Maschine 1 allein über die Wandung der Ausnehmung 23 und die Querstange 24 und nicht über die Zylinderstifte 26 erfolgt, die sich daher im eingespannten Zustand (Figur 4) in einem geringen Abstand zu der Stirnseite des vertikalen Profilstücks 17 befinden.Furthermore, the disk 24 is provided with two cylindrical pins 26 (see FIGS. 2 and 4) projecting beyond both sides of its side surfaces. When the lower ends of the vertical profile pieces 17 are placed on the disks 25, the cylindrical pins 26 always bring about such an alignment of the disks 25 rotatable on the crossbar 24 that the longitudinal axis of the threaded bore is aligned with the longitudinal axis of the tensioning rod 22. The tensioning rods 22 can thus be screwed in straight away without the need for a number of attempts to align the disks 25. The cylinder pins 26 are arranged in such a way that the power transmission during operation of the machine 1 takes place solely via the wall of the recess 23 and the crossbar 24 and not via the cylinder pins 26, which are therefore in the clamped state (FIG. 4) at a short distance from one another the end face of the vertical profile piece 17.

Bei der Demontage der Gatterrahmen 7v und 7h lassen sich diese nach dem Herausschrauben der Spannstangen 22 an den Handknäufen 21 herausheben, da die Spannstangen 22 unterhalb der Führungsbleche 26 mit einem über die Mantelfläche der Spannstange 22 vorstehenden Zylinderstift 27 versehen sind, der die Bohrung in dem Führungsblech 26 nicht passieren kann. Der Zylinderstift 27 stützt sich daher an der Unterseite des Führungsblechs 26 ab, so daß die Spannstange 22 nicht herausgezogen werden kann. Die Handknäufe 21 dienen somit sowohl zum Drehen der Spannstangen 22 als auch zum Herausheben des gesamten Gatterrahmens 7v und 7h. Auf diese Weise wird gleichzeitig verhindert, daß die Spannstangen 22 separat herausgezogen und verlegt werden können.When dismantling the gate frames 7v and 7h, these can be lifted out after unscrewing the tension rods 22 on the hand knobs 21, since the tension rods 22 below the guide plates 26 are provided with a cylindrical pin 27 projecting over the outer surface of the tension rod 22, which pin the hole in the Guide plate 26 can not happen. The cylinder pin 27 is therefore supported on the underside of the guide plate 26, so that the Tension rod 22 can not be pulled out. The hand knobs 21 thus serve both to turn the tension rods 22 and to lift out the entire frame 7v and 7h. In this way it is simultaneously prevented that the tension rods 22 can be pulled out and laid separately.

Bei der Montage eines Gatterrahmens 7v und 7h wird dieser zunächst lediglich an seiner Unterseite mit den Aussparungen 23 auf die Scheiben 25 an der Querstange 24 aufgesetzt. Dabei erfolgt eine automatische Ausrichtung der Scheiben 25 wegen der vorstehenden Zylinderstifte 26. Der Gatterrahmen 7v und 7h befindet sich dabei in einer im Vergleich zur Montageendstellung (vgl. Figur 1) deutlich stärker geneigten Position. In dieser Position können zunächst die Spannstangen 22 eingeschraubt werden, woraufhin der Gatterrahmen 7v und 7h in die steilere Montageendstellung verschwenkt wird. In dieser Stellung werden die mit den Führungsschwingen 14v und 14h verbundenen Laschen 16v und 16h mit ihren seitlich offenen Langlöchern derart seitlich verschoben, daß die Spannstangen 22 in die Langlöcher eingreifen. Erst danach wird der Gatterrahmen 7v und 7h durch Anziehen der Spannstangen 22 mit den Laschen 16v und 16h und den zugehörigen Querstangen 24 der Antriebsschwingen 9 verspannt. Es versteht sich von selbst, daß die beiden Gatterrahmen 7v und 7h nacheinander montiert werden, wobei der in Vorschubrichtung zuerst angeordnete Gatterrahmen 7v als erster montiert wird. Die Montage erfolgt von der in Figur 1 links angeordneten Seite der Brotschneidemaschine 1, auf der die geschnittenen Scheiben von einer Aufnahmefläche 28 entnommen werden. Die Zuführung eines zu schneidenden Brotlaibs erfolgt über ein geneigt angeordnetes Zuführblech 29.When assembling a gate frame 7v and 7h, this is initially only placed on its underside with the cutouts 23 on the panes 25 on the crossbar 24. In this case, the panes 25 are automatically aligned because of the projecting cylindrical pins 26. The gate frame 7v and 7h is in a position which is significantly more inclined compared to the final assembly position (cf. FIG. 1). In this position, the tie rods 22 can first be screwed in, whereupon the gate frame 7v and 7h is pivoted into the steeper final assembly position. In this position, the tabs 16v and 16h connected to the guide rockers 14v and 14h are laterally displaced with their laterally open elongated holes in such a way that the tension rods 22 engage in the elongated holes. Only then is the frame 7v and 7h clamped by tightening the tie rods 22 with the tabs 16v and 16h and the associated crossbars 24 of the drive arms 9. It goes without saying that the two gate frames 7v and 7h are assembled one after the other, the gate frame 7v arranged first in the feed direction being installed first. The assembly takes place from the side of the bread slicing machine 1 arranged on the left in FIG. 1, on which the sliced slices are removed from a receiving surface 28. A loaf of bread to be cut is fed in via an inclined feed plate 29.

Claims (12)

Brotschneidemaschine mit zwei gegenläufig oszillierend antreibbaren Messergattern, die jeweils mit einer Mehrzahl von im Abstand parallel zueinander verlaufenden langgestreckten Messern versehen sind und durch die ein zu schneidender Brotlaib hindurchführbar und dabei in Scheiben schneidbar ist, wobei jedes Messergatter einen Gatterrahmen aufweist, der an einer Seite mit mindestens einer Antriebseinrichtung und an einer gegenüberliegenden Seite mit mindestens einer Führungseinrichtung verbunden ist, dadurch gekennzeichnet, daß die Gatterrahmen (7v, 7h) jeweils zwischen der Antriebseinrichtung und der Führungseinrichtung werkzeuglos einspannbar und als Ganzes aus der Brotschneidemaschine (1) entnehmbar sind.Bread slicer with two oppositely oscillating knife gates, each of which is provided with a plurality of elongated knives running parallel to one another and through which a loaf of bread to be sliced can be passed and cut into slices, each knife gate having a gate frame that is on one side At least one drive device and on an opposite side is connected to at least one guide device, characterized in that the gate frames (7v, 7h) can be clamped between the drive device and the guide device without tools and can be removed as a whole from the bread slicer (1). Brotschneidemaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Gatterrahmen (7v, 7h) mittels Spannstangen (22) einspannbar sind.Bread slicer according to claim 1, characterized in that the gate frames (7v, 7h) can be clamped by means of tensioning rods (22). Brotschneidemaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Spannstangen (22) im eingespannten Zustand der Gatterrahmen (7v, 7h) auf Zug beansprucht sind.Bread slicer according to claim 2, characterized in that the tensioning rods (22) are tensioned in the clamped state of the gate frame (7v, 7h). Brotschneidemaschine nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Spannstangen (22) innerhalb eines Profilstücks (17) des Gatterrahmens (7v, 7h) verlaufen.Bread slicer according to claim 2 or 3, characterized in that the tensioning rods (22) run within a profile piece (17) of the gate frame (7v, 7h). Brotschneidemaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Profilstücke (17, 18) des Gatterrahmens (7v, 7h) Hohlprofile sind.Bread slicer according to one of claims 1 to 4, characterized in that the profile pieces (17, 18) of the gate frame (7v, 7h) are hollow profiles. Brotschneidemaschine nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß sich jeweils zwischen zwei Antriebsschwingen (9) der Antriebseinrichtung eine drehbar darin gelagerte Querstange (24) erstreckt, mit der die Spannstangen (22) verbindbar sind.Bread slicer according to one of claims 2 to 5, characterized in that a cross bar (24) rotatably mounted therein extends between two drive rockers (9) of the drive device, with which the tension bars (22) can be connected. Brotschneidemaschine nach Anspruch 6, dadurch gekennzeichnet, daß die Spannstangen (22) an einem Ende mit einem Handknauf (21) und an dem gegenüberliegenden Ende mit einem Außengewinde versehen sind, das in eine entsprechende Gewindebohrung in einer mit der Querstange (24) verbundenen Scheibe (25) einschraubbar ist.Bread slicer according to claim 6, characterized in that the tensioning rods (22) are provided at one end with a hand knob (21) and at the opposite end with an external thread which is inserted into a corresponding threaded hole in a disc (24) connected to the crossbar (24). 25) can be screwed in. Brotschneidemaschine nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Querstange (24) im eingespannten Zustand des zugeordneten Gatterrahmens (7v, 7h) in eine angepaßte Ausnehmung (23) in der zugewandten Stirnseite eines Profilstücks (17) des Gatterrahmens (7v, 7h) eingreift.Bread slicer according to claim 6 or 7, characterized in that the crossbar (24) in the clamped state of the associated gate frame (7v, 7h) in an adapted recess (23) in the facing end face of a profile piece (17) of the gate frame (7v, 7h) intervenes. Brotschneidemaschine nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Scheiben (25) stirnseitig mit zwei Vorsprüngen versehen sind, die bei der Annäherung der Querstange (24) an die Wandung der Ausnehmung (23) in Verbindung mit der Stirnseite des zugewandten Profilstücks (17) des Gatterrahmens (7v, 7h) eine solche Drehung der Scheibe (25) um die Längsachse der Querstange (24) bewirken, daß die Mittelachse der Gewindebohrung parallel zur Mittelachse der Spannstangen (20) im gespannten Zustand verläuft.Bread slicer according to claim 7 or 8, characterized in that the slices (25) are provided on the end face with two projections which, when the crossbar (24) approaches the wall of the recess (23) in connection with the end face of the facing profile piece (17 ) of the gate frame (7v, 7h) such a rotation of the disc (25) about the longitudinal axis of the crossbar (24) cause the central axis of the threaded bore to run parallel to the central axis of the tensioning rods (20) in the tensioned state. Brotschneidemaschine nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, daß in dem Profilstück (17) ein mit einer Bohrung zur Durchführung der Spannstange (22) versehenes Führungsblech (26) vorgesehen ist.Bread slicer according to one of claims 5 to 9, characterized in that a guide plate (26) provided with a bore for the passage of the tensioning rod (22) is provided in the profile piece (17). Brotschneidemaschine nach Anspruch 10, dadurch gekennzeichnet, daß die Spannstange (22) mindestens jeweils ein über ihren Mantel radial nach außen vorstehendes Anschlagelement aufweisen, das sich beim Anheben der Gatterrahmen (7v, 7h) an den Handknäufen (21) auf der den Handknäufen (21) abgewandten Seite des Führungsblechs (26) abstützt.Bread slicer according to claim 10, characterized in that the tensioning rod (22) each has at least one stop element which projects radially outwards beyond its casing and which, when the gate frame (7v, 7h) is lifted, on the hand knobs (21) on the hand knobs (21 ) facing away from the guide plate (26). Brotschneidemaschine nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Gatterrahmen (7v, 7h) aus Leichtmetall-Profilstücken (17, 18) hergestellt ist.Bread slicer according to one of claims 1 to 13, characterized in that the gate frame (7v, 7h) is made of light metal profile pieces (17, 18).
EP99108047A 1998-05-06 1999-04-23 Bread cutter Expired - Lifetime EP0955134B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19820006 1998-05-06
DE19820006A DE19820006A1 (en) 1998-05-06 1998-05-06 Bread slicer

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EP0955134A2 true EP0955134A2 (en) 1999-11-10
EP0955134A3 EP0955134A3 (en) 2001-04-04
EP0955134B1 EP0955134B1 (en) 2002-06-19
EP0955134B8 EP0955134B8 (en) 2002-10-09

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EP (1) EP0955134B8 (en)
DE (2) DE19820006A1 (en)
DK (1) DK0955134T3 (en)
ES (1) ES2178315T3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2039483A1 (en) * 2007-09-20 2009-03-25 Moffat Pty Limited Bread slicer
WO2010037404A1 (en) * 2008-09-30 2010-04-08 Jac S.A. Automatic bread slicer
CN103568051A (en) * 2012-07-30 2014-02-12 欧力天工股份有限公司 Food cutting device
CN103826816A (en) * 2011-09-28 2014-05-28 欧力天工股份有限公司 Food-cutting device
CN112847501A (en) * 2020-12-31 2021-05-28 李志� Biological breeding slicer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20008126U1 (en) * 2000-05-05 2001-09-13 Rothballer Erwin Tool unit for deburring workpieces

Citations (5)

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Publication number Priority date Publication date Assignee Title
WO1988001220A1 (en) * 1986-08-19 1988-02-25 Anatoly George Szogi Panel cutting apparatus
DE4222198A1 (en) * 1991-07-26 1993-01-28 Uwe Reifenhaeuser Cutter grid for food slicing machine - consists of two oppositely reciprocating frames carrying interlaced sets of blades all moving in same plane
DE9315185U1 (en) * 1993-10-08 1994-01-05 Koller, Jürgen, 40723 Hilden Bread slicer
DE29602579U1 (en) * 1996-02-14 1996-03-28 MHS Schneidetechnik GmbH, 74223 Flein Device for oiling the several knives of a bread slicer
DE19633143A1 (en) * 1996-08-16 1998-02-19 Uwe Dipl Ing Reifenhaeuser Device for slicing or dicing foodstuffs e.g. cooked or preserved meats

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Publication number Priority date Publication date Assignee Title
DE2923003C2 (en) * 1979-06-07 1984-09-27 Holac-Maschinenbau Gmbh, 7920 Heidenheim Food slicer
DE2940090C2 (en) * 1979-10-03 1985-02-21 Toni 5231 Burglahr Reifenhäuser Device for cutting meat, bacon, sausage and other foods

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Publication number Priority date Publication date Assignee Title
WO1988001220A1 (en) * 1986-08-19 1988-02-25 Anatoly George Szogi Panel cutting apparatus
DE4222198A1 (en) * 1991-07-26 1993-01-28 Uwe Reifenhaeuser Cutter grid for food slicing machine - consists of two oppositely reciprocating frames carrying interlaced sets of blades all moving in same plane
DE9315185U1 (en) * 1993-10-08 1994-01-05 Koller, Jürgen, 40723 Hilden Bread slicer
DE29602579U1 (en) * 1996-02-14 1996-03-28 MHS Schneidetechnik GmbH, 74223 Flein Device for oiling the several knives of a bread slicer
DE19633143A1 (en) * 1996-08-16 1998-02-19 Uwe Dipl Ing Reifenhaeuser Device for slicing or dicing foodstuffs e.g. cooked or preserved meats

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2039483A1 (en) * 2007-09-20 2009-03-25 Moffat Pty Limited Bread slicer
US7987757B2 (en) 2007-09-20 2011-08-02 Moffat Pty Limited Bread slicer
WO2010037404A1 (en) * 2008-09-30 2010-04-08 Jac S.A. Automatic bread slicer
CN103826816A (en) * 2011-09-28 2014-05-28 欧力天工股份有限公司 Food-cutting device
CN103826816B (en) * 2011-09-28 2015-11-25 欧力天工股份有限公司 Food cutting device
CN103568051A (en) * 2012-07-30 2014-02-12 欧力天工股份有限公司 Food cutting device
CN103568051B (en) * 2012-07-30 2017-04-12 欧力天工股份有限公司 Food cutting device
CN112847501A (en) * 2020-12-31 2021-05-28 李志� Biological breeding slicer
CN112847501B (en) * 2020-12-31 2023-12-29 李志� Biological breeding slicer

Also Published As

Publication number Publication date
DE19820006A1 (en) 1999-11-11
EP0955134A3 (en) 2001-04-04
ES2178315T3 (en) 2002-12-16
EP0955134B8 (en) 2002-10-09
EP0955134B1 (en) 2002-06-19
DK0955134T3 (en) 2002-10-14
DE59901779D1 (en) 2002-07-25

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