EP0030061A2 - Bread cutting machine - Google Patents

Bread cutting machine Download PDF

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Publication number
EP0030061A2
EP0030061A2 EP80201120A EP80201120A EP0030061A2 EP 0030061 A2 EP0030061 A2 EP 0030061A2 EP 80201120 A EP80201120 A EP 80201120A EP 80201120 A EP80201120 A EP 80201120A EP 0030061 A2 EP0030061 A2 EP 0030061A2
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EP
European Patent Office
Prior art keywords
bread
spring
pusher
springs
cutting machine
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.)
Granted
Application number
EP80201120A
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German (de)
French (fr)
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EP0030061B1 (en
EP0030061A3 (en
Inventor
William François Joseph van Lierde
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Individual
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Individual
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Priority claimed from BE2/58243A external-priority patent/BE880380A/en
Application filed by Individual filed Critical Individual
Publication of EP0030061A2 publication Critical patent/EP0030061A2/en
Publication of EP0030061A3 publication Critical patent/EP0030061A3/en
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Publication of EP0030061B1 publication Critical patent/EP0030061B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0608—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by pushers

Definitions

  • the present invention relates to a bread cutting machine which, as is generally known, consists essentially of two frames in which are arranged at appropriate mutual distances from the saw blades, these frames being able to be animated one by relative to the other with a vertical reciprocating movement and the bread being pushed with the intervention of a pusher against and through said rows of saws so as to be thus cut.
  • the bread cutting machines known to date can in principle be divided into two categories, namely the bread cutting machines with manual control and the bread cutting machines with automatic operation.
  • Bread cutting machines of the first category are essentially characterized in that there is a control lever which, for each bread which it is desired to cut, must be pulled down in the opposite direction to the action of suitable springs, in order to move the pusher back and thus to provide a space for the bread to be cut between said saw blades and the pusher, after which said control lever is calmly released until said pusher pushes the bread and that the latter comes into contact with said saw blades.
  • a disadvantage of these manually controlled machines consists in the relatively large effort which, once the bread is cut, is necessary to bring said pusher back by means of said control lever, which, especially when one has to cut successively a relatively large number large of loaves, is very tiring, which is certainly the case when the bread cutting machine is operated by a store lady and more particularly when this store lady is small.
  • a great advantage of this category of bread cutting machines is that, during cutting, you can influence the cutting operation, either by pushing the control lever up, which has the effect of increasing the action said springs, if we are dealing with hard bread, or by retaining the lever to reduce the action of said springs, if we are dealing with very fresh bread.
  • the automatic machines of said second category are constituted in principle in the same way as the machines of the first category, but in this case, between said pusher and a fixed part of the machine, a device is provided, for example a motor, a push cylinder or the like, which controls the movement of said pusher so as, on the one hand, to make room for the bread to be cut and, on the other hand, to push said pusher, at constant or adjustable speed, towards and along said saw blades for cutting bread.
  • a device for example a motor, a push cylinder or the like, which controls the movement of said pusher so as, on the one hand, to make room for the bread to be cut and, on the other hand, to push said pusher, at constant or adjustable speed, towards and along said saw blades for cutting bread.
  • a serious disadvantage of this latter category of machines is that the hardness, respectively the freshness, of the bread to be cut cannot be taken into account, so that the speed at which the said pusher is moved towards the saw blades determined to be suitable for cutting fresh bread, with the disadvantage that cutting bread harder on such machines is relatively slow.
  • the present invention relates to a bread cutting machine which completely excludes the drawbacks of the two aforementioned categories of bread cutting machines and which, on the other hand, combines in a single machine the advantages of the two aforementioned categories of machines.
  • the bread cutting machine is executed in such a way that the backward movement of said pusher, after a bread has been cut, is obtained automatically by means of a motor, a thrust cylinder or the like, while the forward movement of said plunger, i.e. towards the saw blades, is only influenced by said springs, as provided in a cutting machine bread with manual control, and this so that the free travel or distance between the pusher and the flank closest to the bread is traversed instantaneously, while, if desired, one can influence the cutting of the bread by means of a control lever which is provided on the machine, possibly retaining said handle in the opposite direction to the action of said springs.
  • the bread cutting machine of the type according to which, under the influence of an elastic force, a pusher acts on the bread to move it along the knives or saw blades which are driven in a vertical reciprocating movement, which has the aforementioned advantages and others still, is essentially characterized for this purpose in that means are provided which act on the spring or springs SUPPLIER san t the spring force so that, in opposite direction of the action of the springs, after a bread was cut, said pusher is automatically returned back to provide space for the introduction of a next loaf, said spring or said springs, being at the same time tensioned and maintained in this state until the machine is restarted.
  • the bread cutting machine is essentially constituted by a frame 1 which delimits at the top a table 2 on which the bread to be cut can be moved, above this cutting table 2, in a raised portion of the frame 1, being suspended two ca- d r are, respectively 3 and 4, each carrying a row of knives, especially saw blades 5, which are disposed (s) alternatively, the frames 3 and 4 being assembled at their upper part so as to be freely rotatable, the intervention of pivots, respectively 6.7, to levers tilting, respectively 8,9, which are self-Me- m are set so as to be tilted pivots, respectively 1 0 and 11.
  • these frames 3 and 4 are hinged to an oscillating lever 14, which is fixed so as to be able to rotate about an axis 15 and which, by means of a pivot 16, is assembled so as to be able to freely rotate to a connecting rod 17, including the crank 18, in pulley shape, is connected by a suitable belt 19 to a pulley 20 driven from an electric motor 21.
  • the pusher 22 the front part of which can penetrate between said saw blades, in order to push the bread entirely through the rows of saw blades 5, this pusher 22 being assembled to a carriage 23, which is appropriately guided in the frame 1, so as to be able to animate the pusher 22 with a horizontal reciprocating movement above said table 2.
  • a carriage 23 is assembled, so as to be able to rotate freely, at the intervention of a pivot 24, a lever 25 which, at its second end, is assembled, at the intervention of a pivot 26, with an S-shaped lever 27, the latter being able to rotate around a pivot 28 which is suitably fixed to the frame l.
  • lever 27 On this lever 27 is fixed so as to be able to freely rotate, by means of a pivot 29, a lever 3 &, the second end of which, by means of a pivot 31, is assembled with a lever 32, which can rotate around a pivot 33 fixed to the frame 1.
  • said pivot 33 is extended outside the machine and is assembled with a control lever 38, which can thus directly control the levers 32 and the levers associated therewith to obtain the displacement of the pusher 22.
  • this device mainly consists of a motor of the so-called mandrel type 39 which, at the intervention of a pivot 40, is assembled with a hinge to the frame of the machine and whose outgoing mandrel 41 , in the present embodiment, is provided at its free end with a U-shaped element or fork 41, which freely adapts to said rod 34, and whose length is such that the cooperation of this rod 34 with the fork 42 remains constantly maintained.
  • the machine is provided with a switch 43, that it is provided with a switch 44 which can cooperate with a stop 45 located on said lever 27 and that in the chuck motor 39 are mounted limit switches not shown.
  • rod 41 could also act on the rod 34 if one provided the end with a pin end fitting in a transverse passage of the rod 34, if one provided a plate thrust on rod 41, etc.
  • the mandrel motor 39 can be replaced by a thrust cylinder.
  • the machine In the rest state, the machine is in the state as shown in FIG. 1, where it will be noted that the pusher 22 is completely backwards, that is to say that 'between this pusher and the saw blades 5, there is a maximum free space to allow placing on the cutting table 2, a loaf 46.
  • the mandrel motor 39 is in the extended position and the spring or the springs 36 exert a traction on the axis or the rod 34.
  • the stop 45 which is provided on the lever 27 will come into contact with the switch 44 , which runs automa two functions, namely, on the one hand, stopping the motor 21, respectively the saw blades 5, and, on the other hand, switching on the motor with mandrel 39, which has the effect that the fork 42 is pushed outward and the machine is automatically and quickly returned to the position as shown in Figure 1, so that the machine is ready to receive another loaf, after which the cycle can be repeated.
  • the incorporated limit switches have the effect of cutting the current in the motor 39 when the fork 42 has arrived either in one or in the other of its extreme positions.
  • a great advantage of the machine according to the present invention therefore consists in that the free stroke of the pusher or the distance between the pusher and the bread is traversed very quickly, after which a constant pressure is exerted on the bread, and a second great advantage is that the pressure of the pusher can always be influenced by the user of the machine, by slightly retaining the control lever 34, for example when dealing with very fresh bread.
  • Another advantage of the machine according to the invention is that if, for any reason, the automation of the machine starts to malfunction, the machine could be controlled manually in a simple manner.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)

Abstract

The bread-slicer has a spring-loaded pusher moving the bread along knives as they oscillate vertically. An actuator in opposition to the pusher spring returns the pusher automatically to make room for insertion of the next loaf. The pusher is held in this position until the machine is again operated. This actuator comprises a motor-driven spindle between the frame and outer end of the spring.

Description

La présente invention se rapporte à une machine à découper le pain qui, comme c'est généralement connu, est essentiellement constituée par deux cadres dans lesquels sont disposées à des distances mutuelles appropriées des lames de scie, ces cadres pouvant être animés l'un par rapport à l'autre d'un mouvement alternatif vertical et le pain étant poussé à l'intervention d'un poussoir contre et à travers lesdites rangées de scies pour être ainsi découpé.The present invention relates to a bread cutting machine which, as is generally known, consists essentially of two frames in which are arranged at appropriate mutual distances from the saw blades, these frames being able to be animated one by relative to the other with a vertical reciprocating movement and the bread being pushed with the intervention of a pusher against and through said rows of saws so as to be thus cut.

Les machines à découper le pain connues à ce jour peuvent en principe se diviser en deux catégories, à savoir les machines à découper le pain à commande manuelle et les machines à découper le pain à fonctionnement automatique.The bread cutting machines known to date can in principle be divided into two categories, namely the bread cutting machines with manual control and the bread cutting machines with automatic operation.

Les machines à découper le pain de la première catégorie se caractérisent essentiellement en ce qu'il est prévu un levier de commande qui, pour chaque pain que l'on désire découper, doit être tiré vers le bas en sens inverse de l'action de ressorts appropriés, dans le but de reculer le poussoir et de ménager ainsi entre lesdites lames de scie et le poussoir un espace pour le pain à découper, après quoi on relâche calmement ledit levier de commande jusqu'à ce que ledit poussoir pousse le pain et que ce dernier entre en contact avec lesdites lames de scie.Bread cutting machines of the first category are essentially characterized in that there is a control lever which, for each bread which it is desired to cut, must be pulled down in the opposite direction to the action of suitable springs, in order to move the pusher back and thus to provide a space for the bread to be cut between said saw blades and the pusher, after which said control lever is calmly released until said pusher pushes the bread and that the latter comes into contact with said saw blades.

Sur cette catégorie de machines, c'est à ce moment la force de traction desdits ressorts, qui sont reliés auxdits poussoirs, qui conduit le pain à travers le rideau desdites lames de scie pour le diviser en tranches.On this category of machines, it is at this moment the tensile force of said springs, which are connected to said springs evenings, which leads the bread through the curtain of said saw blades to divide it into slices.

Un inconvénient de ces machines commandées manuellement consiste dans l'effort relativement grand qui, une fois le pain découpé, est nécessaire pour ramener ledit poussoir en arrière au moyen dudit levier de commande, ce qui, surtout quand on a à découper successivement un nombre relativement grand de pains, est très fatigant, ce qui est certainement le cas quand la machine à découper le pain est manoeuvrée par une demoiselle de magasin et plus particulièrement quand cette demoiselle de magasin est de petite taille.A disadvantage of these manually controlled machines consists in the relatively large effort which, once the bread is cut, is necessary to bring said pusher back by means of said control lever, which, especially when one has to cut successively a relatively large number large of loaves, is very tiring, which is certainly the case when the bread cutting machine is operated by a store lady and more particularly when this store lady is small.

Un grand avantage de cette catégorie de machines à découper le pain est que, pendant le découpage, on peut influencer l'opération de découpage, soit en poussant le levier de commande vers le haut, ce qui a pour effet d'augmenter l'action desdits ressorts, si on a affaire à du pain dur, soit en retenant le levier pour réduire l'action desdits ressorts, si on a affaire à du pain très frais.A great advantage of this category of bread cutting machines is that, during cutting, you can influence the cutting operation, either by pushing the control lever up, which has the effect of increasing the action said springs, if we are dealing with hard bread, or by retaining the lever to reduce the action of said springs, if we are dealing with very fresh bread.

Les machines automatiques de ladite seconde catégorie sont constituées en principe de la même manière que les machines de la première catégorie, mais en ce cas, entre ledit poussoir et une partie fixe de la machine, il est prévu un dispositif, par exemple un moteur, un cylindre de poussée ou analogue, qui commande le mouvement dudit poussoir de manière à, d'une part, faire place au pain à découper et, d'autre part, à pousser ledit poussoir, à vitesse constante ou réglable, vers et le long desdites lames de scie pour découper le pain.The automatic machines of said second category are constituted in principle in the same way as the machines of the first category, but in this case, between said pusher and a fixed part of the machine, a device is provided, for example a motor, a push cylinder or the like, which controls the movement of said pusher so as, on the one hand, to make room for the bread to be cut and, on the other hand, to push said pusher, at constant or adjustable speed, towards and along said saw blades for cutting bread.

Un grave inconvénient de cette dernière catégorie de machines est qu'il ne peut être tenu compte de la dureté, respectivement de la fraîcheur, du pain à découper, de sorte que la vitesse à laquelle ledit poussoir est déplacé vers les lames de scie doit être déterminée de manière à convenir au découpage de pain frais, avec l'inconvénient que le découpage de pain plus dur sur de telles machines est relativement lent.A serious disadvantage of this latter category of machines is that the hardness, respectively the freshness, of the bread to be cut cannot be taken into account, so that the speed at which the said pusher is moved towards the saw blades determined to be suitable for cutting fresh bread, with the disadvantage that cutting bread harder on such machines is relatively slow.

Un avantage de ces machines consiste toutefois en ce qu'aucun effort n'est nécessaire pour introduire le pain, cependant que, pour la mise en marche, il faut simplement pousser sur un bouton qui, de façon appropriée, met en marche un moteur, un cylindre de poussée ou analogue, qui commande ledit poussoir.An advantage of these machines, however, is that no effort is necessary to introduce the bread, while for start-up, simply push a button which, suitably, starts an engine, a thrust cylinder or the like, which controls said pusher.

La présente invention a trait à une machine à découper le pain qui exclut totalement les inconvénients des deux catégories précitées de machines à découper le pain et qui, par contre, réunit en une seule machine les avantages des deux catégories précitées de machines.The present invention relates to a bread cutting machine which completely excludes the drawbacks of the two aforementioned categories of bread cutting machines and which, on the other hand, combines in a single machine the advantages of the two aforementioned categories of machines.

Dans ce but, selon la présente invention, la machine à découper le pain est exécutée de telle manière que le mouvement en arrière dudit poussoir, après qu'un pain a été découpé, s'obtient automatiquement au moyen d'un moteur, d'un cylindre de poussée ou d'un élément analogue approprié, tandis que le mouvement en avant dudit poussoir, c'est-à-dire vers les lames de scie, est uniquement influencé par lesdits ressorts, tels que prévus dans une machine à découper le pain à commande manuelle, et cela de manière que la course libre ou distance entre le poussoir et le flanc le plus proche du pain est parcourue instantanément, tandis que, si on le désire, on peut influencer le découpage du pain au moyen d'un levier de commande qui est prévu sur la machine, en retenant éventuellement ladite poignée en sens inverse de l'action desdits ressorts.For this purpose, according to the present invention, the bread cutting machine is executed in such a way that the backward movement of said pusher, after a bread has been cut, is obtained automatically by means of a motor, a thrust cylinder or the like, while the forward movement of said plunger, i.e. towards the saw blades, is only influenced by said springs, as provided in a cutting machine bread with manual control, and this so that the free travel or distance between the pusher and the flank closest to the bread is traversed instantaneously, while, if desired, one can influence the cutting of the bread by means of a control lever which is provided on the machine, possibly retaining said handle in the opposite direction to the action of said springs.

La machine à découper le pain du type selon lequel, sous l'influence d'une force élastique, un poussoir agit sur le pain pour le déplacer le long des couteaux ou lames de scie qui sont animées d'un mouvement alternatif vertical, qui présente les avantages précités et d'autres encore, se caractérise essentiellement dans ce but en ce que des moyens sont prévus qui agissent sur le ressort ou les ressorts fournis- sant la force élastique de telle manière que, en sens inverse de l'action des ressorts, après qu'un pain a été découpé, ledit poussoir est ramené automatiquement en arrière, afin de ménager de l'espace pour l'introduction d'un pain suivant, ledit ressort ou lesdits ressorts, étant en même temps tendus et maintenus en cet état jusqu'à ce que la machine soit remise en marche.The bread cutting machine of the type according to which, under the influence of an elastic force, a pusher acts on the bread to move it along the knives or saw blades which are driven in a vertical reciprocating movement, which has the aforementioned advantages and others still, is essentially characterized for this purpose in that means are provided which act on the spring or springs SUPPLIER san t the spring force so that, in opposite direction of the action of the springs, after a bread was cut, said pusher is automatically returned back to provide space for the introduction of a next loaf, said spring or said springs, being at the same time tensioned and maintained in this state until the machine is restarted.

Afin de mieux faire ressortir les caractéristiques de l'in- vention est décrit ci-après, à titre d'exemple sans caractère restrictif aucun, un mode d'exécution préféré de l'invention, référence étant faite aux dessins annexés dont :

  • la figure 1 représente une vue latérale en élévation d'une machine à découper le pain selon l'invention, le poussoir se trouvant en position arrière;
  • la figure 2 représente une vue pareille à celle de la figure 1, mais le poussoir entrant tout juste en contact avec le pain qui, lui-même, est entré en contact avec les lames de scie;
  • la figure 3 représente une vue pareille à celle des figures précédentes, mais le pain venant d'être coupé.
In order to better reflect the characteristics of the in- v ention described below, as an example without any restrictive character, a preferred embodiment of the invention, with reference to the accompanying drawings of which:
  • Figure 1 shows a side elevational view of a bread cutting machine according to the invention, the pusher being in the rear position;
  • 2 shows a view similar to that of Figure 1, but the pusher just coming into contact with the bread which, itself, came into contact with the saw blades;
  • FIG. 3 represents a view similar to that of the preceding figures, but the bread having just been cut.

Comme représenté aux figures précitées, la machine à découper le pain est essentiellement constituée par un bâti 1 qui délimite en haut une tabl-e 2 sur laquelle peut être déplacé le pain à découper, au-dessus de cette table de découpage 2, dans une partie surélevée du bâti 1, étant suspendus deux ca- dres, respectivement 3 et 4, qui portent chacun une rangée de couteaux, plus spécialement de lames de scie 5, qui sont disposé(e)s alternativement, les cadres 3 et 4 étant assemblés à leur partie supérieure de manière à pouvoir librement tourner, à l'intervention de pivots, respectivement 6,7, à des leviers de basculement, respectivement 8,9, qui sont eux-mê- mes fixés de façon basculable à des pivots, respectivement 10 et 11. Au bas, ces cadres 3 et 4 sont fixés à charnière à un levier oscillant 14, qui est fixé de manière a pouvoir tourner autour d'un axe 15 et qui, au moyen d'un pivot 16, est assemblé de manière à pouvoir librement tourner à une bielle 17, dont la manivelle 18, en forme de poulie, est reliée par une courroie appropriée 19 à une poulie 20 entraînée à partir d'un moteur électrique 21.As shown in the above figures, the bread cutting machine is essentially constituted by a frame 1 which delimits at the top a table 2 on which the bread to be cut can be moved, above this cutting table 2, in a raised portion of the frame 1, being suspended two ca- d r are, respectively 3 and 4, each carrying a row of knives, especially saw blades 5, which are disposed (s) alternatively, the frames 3 and 4 being assembled at their upper part so as to be freely rotatable, the intervention of pivots, respectively 6.7, to levers tilting, respectively 8,9, which are self-Me- m are set so as to be tilted pivots, respectively 1 0 and 11. At the bottom, these frames 3 and 4 are hinged to an oscillating lever 14, which is fixed so as to be able to rotate about an axis 15 and which, by means of a pivot 16, is assembled so as to be able to freely rotate to a connecting rod 17, including the crank 18, in pulley shape, is connected by a suitable belt 19 to a pulley 20 driven from an electric motor 21.

Au-dessus de ladite table de découpage 2 est prévu le poussoir 22, dont la partie avant peut pénétrer entre lesdites lames de scie, afin de pousser le pain entièrement à travers les rangées de lames de scie 5, ce poussoir 22 étant assemblé à un chariot 23, qui est guidé de façon appropriée dans le bâti 1, de manière à pouvoir animer le poussoir 22 d'un mouvement alternatif horizontal au-dessus de ladite table 2. A ce chariot 23 est assemblé, de manière à pouvoir tourner librement, à l'intervention d'un pivot 24, un levier 25 qui, à sa seconde extrémité, est assemblé, à l'intervention d'un pivot 26, à un levier en forme de S 27, celui-ci pouvant tourner autour d'un pivot 28 qui est fixé de façon appropriée au bâti l. Sur ce levier 27, est fixé de manière à pouvoir librement tourner, à l'intervention d'un pivot 29, un levier 3&, dont la seconde extrémité, au moyen d'un pivot 31, est assemblée à un levier 32, qui peut tourner autour d'un pivot 33 fixé au bâti 1.Above said cutting table 2 is provided the pusher 22, the front part of which can penetrate between said saw blades, in order to push the bread entirely through the rows of saw blades 5, this pusher 22 being assembled to a carriage 23, which is appropriately guided in the frame 1, so as to be able to animate the pusher 22 with a horizontal reciprocating movement above said table 2. To this carriage 23 is assembled, so as to be able to rotate freely, at the intervention of a pivot 24, a lever 25 which, at its second end, is assembled, at the intervention of a pivot 26, with an S-shaped lever 27, the latter being able to rotate around a pivot 28 which is suitably fixed to the frame l. On this lever 27 is fixed so as to be able to freely rotate, by means of a pivot 29, a lever 3 &, the second end of which, by means of a pivot 31, is assembled with a lever 32, which can rotate around a pivot 33 fixed to the frame 1.

La construction décrite ci-dessus sera en principe exécutée en double, c'est-à-dire que toute la construction à leviers décrite ci-dessus est prévue de chaque côté de la machine, les deux leviers 32 étant rendus solidaires par une tige appropriée 34 autour de laquelle on fixe l'extrémité libre 35 d'un ressort 36 qui, à son autre extrémité 37, est fixé de façon appropriée au bâti 1 de la machine.The construction described above will in principle be carried out in duplicate, that is to say that all the lever construction described above is provided on each side of the machine, the two levers 32 being made integral by an appropriate rod. 34 around which the free end 35 of a spring 36 is fixed, which, at its other end 37, is appropriately fixed to the frame 1 of the machine.

Afin d'augmenter la force de traction s'exerçant sur lesdits leviers 32, on disposera en général une pluralité de ressorts 37.In order to increase the tensile force exerted on said levers 32, a plurality of springs 37 will generally be available.

Au moins d'un côté de la machine, ledit pivot 33 est prolongé en dehors de la machine et est assemblé à un levier de commande 38, qui peut ainsi commander directement les leviers 32 et les leviers qui lui sont associés pour obtenir le déplacement du poussoir 22.At least on one side of the machine, said pivot 33 is extended outside the machine and is assembled with a control lever 38, which can thus directly control the levers 32 and the levers associated therewith to obtain the displacement of the pusher 22.

Selon la présente invention, on.complète la machine ici décrite en lui associant des moyens qui permettent, d'une part, après que le pain a été découpé, de ramener automatiquement ledit poussoir 22 à la position de la figure 1 et qui permettent, d'autre part, pour découper un pain, que le poussoir 22 agisse sur ce pain sous l'effet desdits ressorts 37.According to the present invention, on.complète the machine described here by associating means which allow, on the one hand, after the bread has been cut, to automatically return said pusher 22 to the position of Figure 1 and which allow, on the other hand, to cut a loaf, let the pusher 22 act on this loaf under the effect of said springs 37.

Dans le mode d'exécution représenté, ce dispositif se compose surtout d'un moteur de type dit à mandrin 39 qui, à l'intervention d'un pivot 40, est assemblé à charnière au bâti de la machine et dont le mandrin sortant 41, dans la présente exécution, est pourvu à son extrémité libre d'un élément en forme d'U ou de fourche 41, qui s'adapte librement sur ladite tige 34, et dont la longueur est telle que la coopération de cette tige 34 avec la fourche 42 reste constamment maintenue.In the embodiment shown, this device mainly consists of a motor of the so-called mandrel type 39 which, at the intervention of a pivot 40, is assembled with a hinge to the frame of the machine and whose outgoing mandrel 41 , in the present embodiment, is provided at its free end with a U-shaped element or fork 41, which freely adapts to said rod 34, and whose length is such that the cooperation of this rod 34 with the fork 42 remains constantly maintained.

Pour être complet, on fait remarquer ici que la machine est pourvue d'un interrupteur 43, qu'elle est pourvue d'un interrupteur 44 qui peut coopérer avec une butée 45 située sur ledit levier 27 et que dans le moteur à mandrin 39 sont montés des interrupteurs de fin de course non représentés.To be complete, it is pointed out here that the machine is provided with a switch 43, that it is provided with a switch 44 which can cooperate with a stop 45 located on said lever 27 and that in the chuck motor 39 are mounted limit switches not shown.

Il est clair que la tige 41 pourrait également agir sur la tige 34 si l'on en pourvoyait l'extrémité d'un bout d'axe s'adaptant dans un passage transversal de la tige 34, si l'on prévoyait une plaque de poussée sur la tige 41, etc.It is clear that the rod 41 could also act on the rod 34 if one provided the end with a pin end fitting in a transverse passage of the rod 34, if one provided a plate thrust on rod 41, etc.

Selon encore un autre mode d'exécution, le moteur à mandrin 39 peut être remplacé par un cylindre de poussée.According to yet another embodiment, the mandrel motor 39 can be replaced by a thrust cylinder.

L'utilisation et le fonctionnement de la machine à découper le pain telle que représentée aux dessins annexés sont très simples et peuvent se décrire comme suit.The use and operation of the cutting machine the bread as shown in the accompanying drawings is very simple and can be described as follows.

A l'état de repos, la machine se trouve dans l'état tel que représenté à la figure 1, où l'on remarquera que le poussoir 22 se trouve tout à fait vers l'arrière, c'est-à-dire qu'entre ce poussoir et les lames de scie 5, il y a un espace libre maximum pour permettre de placer sur la table de découpage 2, un pain 46.In the rest state, the machine is in the state as shown in FIG. 1, where it will be noted that the pusher 22 is completely backwards, that is to say that 'between this pusher and the saw blades 5, there is a maximum free space to allow placing on the cutting table 2, a loaf 46.

Le moteur à mandrin 39 se trouve en position d'extension et le ressort ou les ressorts 36 exercent une traction sur l'axe ou la tige 34.The mandrel motor 39 is in the extended position and the spring or the springs 36 exert a traction on the axis or the rod 34.

Si, à ce moment, on met la machine en marche en enfonçant le bouton 43, on obtient que le moteur à mandrin 39 et le moteur 21 soient en circuit, ce qui a pour effet que le mandrin 41 se rétracte brusquement, ce qui a pour conséquence que la tige 34, sous l'action du ressort ou des ressorts 36, suit ce mandrin, et ceci jusqu'à la position telle que représentée à la figure 2, c'est-à-dire la position en laquelle le poussoir 22 a déplacé le pain contre les lames de scie 5 déjà en mouvement. Il est donc clair que la distance parcourue par le poussoir 22 entre la position de la figure 1 et la position de la figure 2 est parcourue très rapidement.If, at this time, the machine is started by pressing the button 43, it is obtained that the mandrel motor 39 and the motor 21 are in circuit, which has the effect that the mandrel 41 suddenly retracts, which has as a result that the rod 34, under the action of the spring or springs 36, follows this mandrel, and this up to the position as shown in Figure 2, that is to say the position in which the pusher 22 has moved the bread against the already moving saw blades 5. It is therefore clear that the distance traveled by the pusher 22 between the position of Figure 1 and the position of Figure 2 is traveled very quickly.

A ce moment, le ressort 36 exerce une traction sur l'axe 34 et celui-ci à son tour fera tourner le levier 32, avec comme conséquence qu'au moyen de la transmission par leviers décrite plus haut, une pression appropriée est exercée, à l'intervention du poussoir 22, sur le pain 46, pour le pousser à travers le rideau de lames de scie 5.At this moment, the spring 36 exerts a traction on the axis 34 and this in turn will rotate the lever 32, with the consequence that by means of the transmission by levers described above, an appropriate pressure is exerted, at the intervention of the pusher 22, on the bread 46, to push it through the curtain of saw blades 5.

Une fois le pain tout à fait découpé, c'est-à-dire une fois la machine arrivée à la position telle que représentée à la figure 3, la butée 45 qui est prévue sur le levier 27 entrera en contact avec l'interrupteur 44, ce qui exécute automatiquement deux fonctions, à savoir, d'une part, arrêter le moteur 21, respectivement les lames de scie 5, et, d'autre part, mettre en circuit le moteur à mandrin 39, ce qui a pour effet que la fourche 42 est poussée vers l'extérieur et que la machine est automatiquement et rapidement ramenée à la position telle que représentée à la figure 1, de manière que la machine est prête à recevoir un autre pain, après quoi le cycle peut se répéter.Once the bread is completely cut, that is to say once the machine has arrived at the position as shown in FIG. 3, the stop 45 which is provided on the lever 27 will come into contact with the switch 44 , which runs automa two functions, namely, on the one hand, stopping the motor 21, respectively the saw blades 5, and, on the other hand, switching on the motor with mandrel 39, which has the effect that the fork 42 is pushed outward and the machine is automatically and quickly returned to the position as shown in Figure 1, so that the machine is ready to receive another loaf, after which the cycle can be repeated.

Pendant l'un et l'autre déplacement du moteur à mandrin 39, les interrupteurs de fin de course incorporés ont pour effet de couper le courant dans le moteur 39 quand la fourche 42 est arrivée soit en l'une soit en l'autre de ses positions extrêmes.During either movement of the chuck motor 39, the incorporated limit switches have the effect of cutting the current in the motor 39 when the fork 42 has arrived either in one or in the other of its extreme positions.

Un grand avantage de la machine selon la présente invention consiste donc en ce que la course libre du poussoir ou la distance entre le poussoir et le pain est parcourue très rapidement, après quoi une pression constante est exercée sur le pain, et un second grand avantage consiste en ce que la pression du poussoir peut toujours être influencée par l'utilisateur de la machine, en retenant légèrement le levier de commande 34, par exemple quand on a affaire à un pain très frais.A great advantage of the machine according to the present invention therefore consists in that the free stroke of the pusher or the distance between the pusher and the bread is traversed very quickly, after which a constant pressure is exerted on the bread, and a second great advantage is that the pressure of the pusher can always be influenced by the user of the machine, by slightly retaining the control lever 34, for example when dealing with very fresh bread.

Finalement, un autre avantage de la machine selon l'invention est que si, pour une cause quelconque l'automatisme de la machine se mettait à fonctionner mal, la machine pourrait être commandée manuellement de façon simple.Finally, another advantage of the machine according to the invention is that if, for any reason, the automation of the machine starts to malfunction, the machine could be controlled manually in a simple manner.

Il va de soi que la présente invention ne se limite nullement au mode d'exécution décrit comme exemple et représenté aux dessins annexés, mais qu'une telle machine à découper le pain peut être réalisée en toutes sortes de formes et avec toutes sortes de dimensions, sans sortir du cadre de l'invention.It goes without saying that the present invention is in no way limited to the embodiment described as an example and shown in the accompanying drawings, but that such a bread cutting machine can be produced in all kinds of shapes and with all kinds of dimensions. , without departing from the scope of the invention.

Claims (8)

1.- Machine à découper le pain du type selon lequel, sous l'influence d'une force élastique, un poussoir agit sur un pain pour le déplacer le long de couteaux ou de lames de scie animées d'un mouvement alternatif vertical, caractérisée en ce que des moyens sont prévus qui agissent sur le ressort ou les ressorts (36) fournissant ladite force élastique de telle manière qu'après qu'un pain (46) a été découpé, ledit poussoir (22) est ramené automatiquement en arrière en sens inverse de l'action de ressort, afin de ménager de l'espace pour introduire un pain (46) suivant, ledit ou lesdits ressorts (36) étant en même temps retendus et maintenus en cet état jusqu'à ce qu'on mette de nouveau la machine en marche.1.- Bread cutting machine of the type according to which, under the influence of an elastic force, a pusher acts on a bread to move it along knives or saw blades animated by a vertical reciprocating movement, characterized in that means are provided which act on the spring or springs (36) supplying said elastic force in such a way that after a loaf (46) has been cut, said pusher (22) is automatically brought back in opposite direction of the spring action, in order to save space for inserting a next loaf (46), said spring (s) (36) being at the same time tensioned and maintained in this state until put the machine is running again. 2.- Machine à découper le pain selon la revendication 1, caractérisée en ce que lesdits moyens sont constitués par un moteur à mandrin (39) dont une partie est assemblée au bâti de la machine, tandis que sa seconde partie peut agir directement ou indirectement sur l'extrémité (35) dudit ressort ou desdits ressorts (36) qui n'est pas assemblée au bâti de la machine.2. Bread cutting machine according to claim 1, characterized in that said means consist of a mandrel motor (39), part of which is assembled to the frame of the machine, while its second part can act directly or indirectly. on the end (35) of said spring or said springs (36) which is not assembled to the frame of the machine. 3.- Machine à découper le pain selon la revendication 1, caractérisée en ce que lesdits moyens sont constitués par un cylindre de poussée dont une partie est assemblée au bâti de la machine, tandis que sa seconde partie peut agir directement ou indirectement sur l'extrémité (35) dudit ressort ou desdits ressorts (36) qui n'est pas assemblée au bâti de la machine.3.- bread cutting machine according to claim 1, characterized in that said means consist of a push cylinder, part of which is assembled to the frame of the machine, while its second part can act directly or indirectly on the end (35) of said spring or springs (36) which is not assembled to the frame of the machine. 4.- Machine à découper le pain selon la revendication 2 ou 3, caractérisée en ce que lesdits moyens sont assemblés à charnière (41) au bâti de la machine.4. Bread cutting machine according to claim 2 or 3, characterized in that said means are assembled with a hinge (41) to the frame of the machine. 5.- Machine à découper le pain selon une des revendications précédentes, caractérisée en ce que la partie desdits moyens qui coopère directement ou indirectement avec ledit ressort ou lesdits ressorts (36) est pourvue dans ce but à son extrémité libre d'un élément en forme de fourche ou de U (42), qui peut se déplacer librement sur une tige (34) à laquelle ledit ressort ou lesdits ressorts (36) est (sont) fixé (s) .5.- bread cutting machine according to one of the preceding claims, characterized in that the part of said means which cooperates directly or indirectly with said spring or said springs (36) is provided for this purpose at its free end with a fork-shaped or U-shaped element (42), which can move freely on a rod (34) to which said spring or said springs (36) is (are) fixed. 6.- Machine à découper le pain selon la revendication 5, caractérisée en ce que ladite fourche (42) présente une longueur telle que, quelle que soit la position des éléments de la machine, elle continue à coopérer avec ladite tige (34).6. Bread cutting machine according to claim 5, characterized in that said fork (42) has a length such that, whatever the position of the elements of the machine, it continues to cooperate with said rod (34). 7.- Machine à découper le pain selon une des revendications précédentes, caractérisée en ce qu'auxdits moyens sont associés deux interrupteurs de fin de course qui tant dans l'une des positions extrêmes de ces moyens que dans l'autre empêchent la mise sous tension ou la marche de ces moyens.7. Bread cutting machine according to one of the preceding claims, characterized in that said means are associated with two limit switches which both in one of the extreme positions of these means and in the other prevent the setting tension or the march of these means. 8.- Machine à découper le pain selon une des revendications précédentes, caractérisée en ce qu'avec un des leviers qui assurent la liaison entre ledit poussoir (22) et lesdits ressorts (36) coopère un interrupteur (44) qui, quand il est influencé, d'une part interrompt l'entraînement desdites lames de scie (5) et, d'autre part met sous tension ou met en marche lesdits moyens de manière à ramener en arrière ledit poussoir (22), respectivement à tendre ledit ressort ou lesdits ressorts (36).8. Bread cutting machine according to one of the preceding claims, characterized in that with one of the levers which provide the connection between said pusher (22) and said springs (36) cooperates a switch (44) which, when it is influenced, on the one hand interrupts the drive of said saw blades (5) and, on the other hand energizes or starts said means so as to bring back said pusher (22), respectively to tension said spring or said springs (36).
EP19800201120 1979-12-03 1980-11-27 Bread cutting machine Expired EP0030061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2/58243A BE880380A (en) 1979-12-03 1979-12-03 BREAD SLICER
BE58243 1979-12-03

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EP0030061A2 true EP0030061A2 (en) 1981-06-10
EP0030061A3 EP0030061A3 (en) 1984-03-28
EP0030061B1 EP0030061B1 (en) 1986-03-26

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EP19800201120 Expired EP0030061B1 (en) 1979-12-03 1980-11-27 Bread cutting machine

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EP (1) EP0030061B1 (en)
DE (1) DE3071516D1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101137A1 (en) * 1982-08-09 1984-02-22 B.V. Haagse Bakkerijmachinefabriek Arnold Kalmeijer Apparatus for slicing bread products
EP0325020A1 (en) * 1988-01-22 1989-07-26 Oliver Products Company Countertop bread slicer with manually actuated cradle
ES2067399A2 (en) * 1993-03-12 1995-03-16 Ind Torrents S A Bread-cutting machine
EP2556932A1 (en) 2011-08-11 2013-02-13 S.A. Jac N.V. Bread cutting machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540758A (en) *
DE223120C (en) *
GB670144A (en) * 1949-11-18 1952-04-16 Record Bakery Equipment Compan Improvements in and relating to bread slicing machines
US2616160A (en) * 1946-04-19 1952-11-04 Grob Brothers Work feed
FR1201672A (en) * 1958-07-09 1960-01-04 Control installation of a reciprocating member, such as the carriage of a log saw

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE758648A (en) * 1970-11-06 1971-04-16 Macors Alfred AUTOMATIC QUICK RETURN CUTTER,

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540758A (en) *
DE223120C (en) *
US2616160A (en) * 1946-04-19 1952-11-04 Grob Brothers Work feed
GB670144A (en) * 1949-11-18 1952-04-16 Record Bakery Equipment Compan Improvements in and relating to bread slicing machines
FR1201672A (en) * 1958-07-09 1960-01-04 Control installation of a reciprocating member, such as the carriage of a log saw

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101137A1 (en) * 1982-08-09 1984-02-22 B.V. Haagse Bakkerijmachinefabriek Arnold Kalmeijer Apparatus for slicing bread products
US4576074A (en) * 1982-08-09 1986-03-18 B.V. Haagse Bakkerijmachinefabriek Apparatus for slicing bread products
EP0325020A1 (en) * 1988-01-22 1989-07-26 Oliver Products Company Countertop bread slicer with manually actuated cradle
ES2067399A2 (en) * 1993-03-12 1995-03-16 Ind Torrents S A Bread-cutting machine
EP2556932A1 (en) 2011-08-11 2013-02-13 S.A. Jac N.V. Bread cutting machine
DE102011109997A1 (en) 2011-08-11 2013-02-14 S.A. Jac N.V. Slicer

Also Published As

Publication number Publication date
EP0030061B1 (en) 1986-03-26
DE3071516D1 (en) 1986-04-30
EP0030061A3 (en) 1984-03-28

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