EP3628405A1 - Collector-crusher for catering waste - Google Patents

Abstract

The invention relates to devices comprising a feed hopper 1, a crusher 2 motorized by a motor 3 and collection bins 4.

The aims of the invention are to reduce the downtime caused by breakdowns, to simplify the work of the staff and the service, and to improve the safety of the staff.

According to the invention, the hopper 1, the crusher 2, its drive means 3, 38 and 39, its electrical supply 18 and its control box 17 are carried by the chassis of a carriage 8, removable and interchangeable in the event of breakdown, fitting under the upper wall 11 of a piece of furniture 9. The electrical circuit of the crusher and of the means of the carriage is supplied by a single connector 18. Corridors 19a and 19b arranged in the hopper and 20a and 20b in the grinder directs the food crushes and the crushed cans to the underlying tanks 4a and 4b. A tubular network 25-26 leads the liquid remains to a tank 4c. Sensors 22-23, 43 and 44 secure the device.

Description

The invention relates to a collector-shredder of catering waste.

In catering, collective or not, when the service is finished, catering waste is collected in containers assigned to this task or in collector-shredders reducing their volume.

By waste is understood food residues, including what has not been consumed or which is unfit for consumption, such as mashed vegetables, leftover salads, bones, crusts of bread or garnish, peels , pits and leftover fruit. In the fast food industry, there are disposable plates, cups and cutlery as well as glass or aluminum or plastic drink cans or bottles, cardboard or polystyrene cups and containers, liquid bricks and napkins. paper.

This waste is collected and distributed either by service personnel, or directly by the consumer who not only serves his place of consumption but also his tray. The contents of the tray are divided between areas for collecting reusable items after washing and food waste bins or containers. The state of the art already provides so-called "industrial" devices for the treatment of collective catering waste. The known devices include, carried by a frame, a waste collection hopper and a crusher disposed above a reception area of a shredded waste collector bin. It discloses devices collecting ground food, food plus dishes and cans, bottles or beverage containers. We know by US-A-2015/234637 a compact grinding apparatus comprising two independent compartments receiving crushed food waste and non-food waste. The device operates on battery and photovoltaic panel. It is also equipped with a fan ensuring the extraction of air. It is rather intended for a particular use.

In addition to noise and odor nuisance, such devices have the disadvantage of being fragile in terms of their grinding means which undergo stresses varying according to the resistance offered by the waste disposed in the hopper, for example between remains food alone or accompanied by their dishes in crushable material and metal cans, bottles or containers or other materials. This fragility is all the more marked when the operating time of these devices, especially in fast food, is high and they must be usable over a time range close to 24 hours. This disadvantage is increased when the device is used by consumers who are not informed about its operation and the constraints which result from it, or quite simply lax by not respecting the instructions for dumping into containers.

As a result, the knives, blades or discs of the grinding means, but also their motor means and intermediate drive means are subject to frequent breakdowns which, when they are long, make it necessary to provide spare devices.

Such operating stoppages are all the more expensive since it is necessary to call on the manufacturer or a maintenance company, generally remote, since the kitchen and service personnel are not able to carry out this maintenance.

The object of the invention is to provide a collector-shredder for catering waste, the structure of which makes it possible to ensure, at the place of use, rapid maintenance not requiring the movement of a specialist and allowing rapid recovery of the service.

It applies to devices comprising at least one feed hopper and a crusher delivering on at least one receiving tank placed under it and without contact with the crusher housed in a protective cabinet.

According to the invention, the hopper, the crusher, its drive means, its electrical connection means and its control, operating and securing means, are carried by the chassis of a carriage, removable and interchangeable, inserting under the upper wall of the piece of furniture with facial door, the piece of furniture comprising, in an upper wall, at least two openings, leading to two independent containers for comminuted ground material, these containers being assigned to the collection, respectively, of ground material from the whole- coming from food and ground products from all non-food stuff, in particular from metal cans, plastic and cardboard, polystyrene or glass containers and bottles, and that the electric circuit of the trolley is supplied by a single connector, capable of receiving the plug of an electric power cable reaching the cabinet.

With this structure, all technical means are carried by a removable cart which, in the event of a malfunction, is disconnected from its sole power source, then, after removal of the collection bins, is removed from the cabinet, to be replaced by a trolley in stock, supporting the same means, but in working order. Thus, the downtime of the service is limited to the period of supply of a new carriage and no longer depends on the time of repair of the means having caused the breakdown, such as total or partial breakage of a means of grinding, replacement of '' an electric motor, failure of an electrical, mechanical or other component.

The hopper is divided by a vertical separator into two lanes corresponding to the underlying bins. Preferably, the upper wall of the cabinet has a third opening under which is disposed a funnel for collecting liquids forming part of a tubular network going into a third collecting tank, assigned to liquids.

Thus, before engaging a metal can or a plastic, cardboard, polystyrene or glass bottle or container in the specific lane provided in the hopper, the operator can pour the rest of the contents into the third opening, thus releasing the collection bins, respectively, of food waste and non-food waste, of an unsuitable volume of liquid disturbing their content.

• en une zone antérieure, d'accueil des bacs de collecte des broyats et des liquides, et,
• en une zone postérieure, supportant un coffret de pilotage qui, contenant les moyens de commande et de contrôle, est accessible par une porte postérieure.

In one embodiment, the upper plane of the chassis carries the hopper and the crusher, while its lower part is divided:

• in an anterior zone, for receiving the ground material and liquid collection tanks, and,
• in a rear zone, supporting a control box which, containing the command and control means, is accessible by a rear door.

With this arrangement, when the trolley is placed in the cabinet, the cabinet door faces the rear wall of the cabinet and cannot be opened, for example by catering staff or more generally by a user, and therefore cannot only be opened by maintenance personnel after the cart has been removed from the cabinet. This provides security for the functional settings of the device.

• un niveau de broyage inférieur, dans lequel ses deux arbres parallèles sont motorisés avec des rotations inverses et à des vitesses différentes, sont synchronisées et portent des disques de broyage qui, munis de dents périphériques, sont espacés et s'intercalent dans les intervalles entre disques de l'arbre voisin,
• et un niveau supérieur d'amenage, dans lequel deux autres arbres parallèles, également motorisés et à rotations inverses synchronisées, portent des bras diamétraux dentés, espacés longitudinalement et aptes à happer les déchets déversés dans la trémie en fournissant un effort de traction vers le bas, s'ajoutant aux couples d'entraînement fournis par les disques du broyeur;
• les arbres des deux niveaux étant reliés, par un entraînement par chaîne, à un motoréducteur avec variateur de vitesses piloté par la valeur du courant absorbé.

In one embodiment, the mill is divided, longitudinally and by a vertical wall, into two lanes, corresponding to those of the hopper, and vertically into

• a lower level of grinding, in which its two parallel shafts are motorized with reverse rotations and at different speeds, are synchronized and carry grinding discs which, provided with peripheral teeth, are spaced and are inserted in the intervals between discs from the neighboring tree,
• and an upper level of feed, in which two other parallel shafts, also motorized and with synchronized reverse rotations, carry toothed diametrical arms, spaced apart longitudinally and capable of catching the waste discharged into the hopper by providing a pulling force downwards , in addition to the drive torques provided by the grinder discs;
• the shafts of the two levels being connected, by a chain drive, to a geared motor with variable speed drive controlled by the value of the absorbed current.

The organization of the shredder makes the best use of the electrical energy allocated to the shredding function, while the control of the motor by the instantaneous current delivered by the shredder makes it possible to constantly adjust the speeds and the direction of drive of the shafts, to obtain an excellent yield and a perfectly adapted power.

Advantageously, the crusher comprises in its housing lateral and fixed cleaning blades extending horizontally, from two of the sides facing the housing, between the wall of the housing and one of the two motorized shafts of the level lower, each blade being inserted, with a reduced functional clearance, in one of the intervals formed between two discs wedged on the same shaft, for the interlocking passage of the discs opposite the neighboring shaft.

This makes it possible, immediately after shredding and grinding, to eliminate waste, and more particularly filamentous waste which, aggregating in these intervals, increases the electrical power consumed, while reducing speed and efficiency.

Preferably, each disc comprises a hexagonal axial bore by which it is locked in rotation on a shaft of the same cross section, but with an angular offset with respect to its neighbors, so that the teeth on a shaft are distributed in helices offering a propeller grinding attack.

This mounting of the discs distributes the instant grinding effort along the shafts, improves the wear resistance of the teeth, reduces the breakdown of the crusher and makes it possible to limit the instantaneous electrical power required.

• Figure 1 est une vue en perspective éclatée de l'ensemble de l'appareil;
• Figure 2 est une vue en plan par-dessus;
• Figure 3 est une vue de coté en coupe verticale et transversale selon III-III à la figure 2, montrant l'aménagement de la trémie, du broyeur et des bacs de collecte;
• Figure 4 est une vue en coupe verticale selon IV-IV à la figure 3, passant par l'intérieur du broyeur;
• Figure 5 est une vue en coupe verticale selon V-V à la figure 2, montrant les moyens d'entraînement à chaînes des arbres du broyeur, et le réseau de collecte des liquides;
• Figure 6 est une vue en coupe selon IV-IV à la figure 3 montrant à échelle agrandie les composants du broyeur et
• Figure 7 est une vue en coupe selon VII-VII à la figure 6 montrant, à échelle agrandie, l'entrecroisement des disques et des lames de débourrage.
  • L'appareil représenté aux figures comprend, de façon générale et en allant du haut vers le bas de la figure, un meuble de protection 9, ici de forme globalement rectangulaire. En variante, il a une autre forme, par exemple carrée. Ce meuble est réalisé en métal inoxydable afin de pouvoir respecter la réglementation concernant l'hygiène dans la restauration. En variante, il est en un autre matériau, par exemple en polymère. Outre une porte faciale 10, ici en deux volets, permettant d'accéder au volume intérieur du meuble 9, celui-ci comprend une paroi supérieure 11. Cette paroi 11 est adaptée pour recevoir des accessoires de restauration, typiquement des plateaux de repas P. La paroi 11 est pourvue d'au moins deux ouvertures. Ici trois ouvertures référencées 13 à 15 sont illustrées. Les ouvertures sont rectangulaire 13, d'accueil du tout-venant alimentaire, avec ou sans vaisselles et couverts broyables, circulaire 14, d'accueil de canettes métalliques ou des récipients ou bouteilles en matière plastique, en carton, en polymères ou en verre, et circulaire 15, pour la vidange des liquides. En variante on conçoit que la forme et/ou le nombre et/ou la disposition des ouvertures sont différentes et adaptées aux fonctions de broyage recherchées. Ici, les ouvertures 13 à 15 sont dépourvues d'un moyen d'obturation. En variante, des capots rigides ou souples équipent les ouvertures.

Other characteristics and advantages of the invention will emerge from the description which follows, given with reference to the appended schematic drawings, representing an embodiment of the crusher-compactor according to the invention.

• Figure 1 is an exploded perspective view of the entire apparatus;
• Figure 2 is a plan view from above;
• Figure 3 is a side view in vertical and transverse section according to III-III to the figure 2 , showing the layout of the hopper, the crusher and the collection bins;
• Figure 4 is a vertical section view according to IV-IV at figure 3 , passing through the interior of the mill;
• Figure 5 is a vertical section view according to VV at figure 2 , showing the chain drive means of the grinder shafts, and the liquid collection network;
• Figure 6 is a section view according to IV-IV to the figure 3 showing on an enlarged scale the components of the mill and
• Figure 7 is a section view according to VII-VII at the figure 6 showing, on an enlarged scale, the intersection of the disks and the cleaning blades.
  • The apparatus shown in the figures comprises, generally and going from the top to the bottom of the figure, a protective cabinet 9, here of generally rectangular shape. As a variant, it has another shape, for example square. This piece of furniture is made of stainless metal in order to be able to comply with the regulations concerning hygiene in catering. Alternatively, it is made of another material, for example polymer. In addition to a face door 10, here in two flaps, providing access to the interior volume of the cabinet 9, the latter comprises an upper wall 11. This wall 11 is suitable for receiving catering accessories, typically meal trays P. The wall 11 is provided with at least two openings. Here three openings referenced 13 to 15 are illustrated. The openings are rectangular 13, accommodating all food, with or without crushable dishes and cutlery, circular 14, accommodating metal cans or plastic, cardboard, polymer or glass containers or bottles, and circular 15, for draining liquids. As a variant, it is understood that the shape and / or the number and / or the arrangement of the openings are different and adapted to the desired grinding functions. Here, the openings 13 to 15 are devoid of a sealing means. Alternatively, rigid or flexible covers are fitted to the openings.

To the figure 1 , the cabinet 9 is illustrated with the door 10 open. In the front part of the figure 1 a hopper 1, a crusher 2, an electric drive geared motor 3 and collection bins 4a, 4b and 4c are illustrated.

According to the invention, the hopper 1, the crusher 2 and the geared motor 3 are carried by the upper plate 6a of a tubular frame 6. The latter is provided with rollers with which it forms a carriage 8 enabling it to be engaged in or take it out of the protective cabinet 9 through the facial door 10.

• une partie antérieure A1 recevant sans contact les bacs 4a, 4b et 4c, en appui sur le sol, et,
• une partie postérieure A2, supportant un coffret 17 contenant les moyens de commande, de contrôle et de pilotage, dont l'alimentation électrique s'effectue par un unique connecteur 18, visible figure 1.

The lower part of the carriage 8 is divided, under the plate 11, into:

• an anterior part A1 receiving without contact the tanks 4a, 4b and 4c, bearing on the ground, and,
• a rear part A2, supporting a box 17 containing the command, control and piloting means, the power supply of which is effected by a single connector 18, visible figure 1 .

The figure 4 , shows that when the carriage 8 is inside the cabinet 9, the door 17a of the cabinet 17 is close to the rear wall 9a of the cabinet 9 and therefore cannot be opened to modify the functional settings of the crusher 2. This ensures protection against any unauthorized and / or unauthorized intervention attempt.

The figures 1 and 3 show that the hopper which, extends longitudinally only over a length equal to that of the accumulated tanks 4a and 4b, is divided by a vertical separator 19 delimiting two lanes 19a and 19b, superimposed on the underlying tanks 4a and 4b.

In this embodiment, the separator 19 is provided with a window 20 allowing an intangible beam F to pass between a transmitter 22 and a receiver 23 arranged on two of the opposite edges of the hopper 1. This equipment is associated with a safety automaton which , arranged in the box 17, manages on the one hand the stopping of the geared motor 3 as soon as the light curtain F is obscured, for example by a hand or a dumping of waste, and on the other hand and after a timed delay, the restarting the gearmotor 3.

The figures 1 , 3 and 5 show that a funnel 25 for collecting liquids is disposed under the opening 15 of the upper wall 11 of the cabinet 9. It is connected to the upper end of a tubular network 26, the lower end of which opens out above of the tank 4c for collecting liquids.

As shown by figures 4 and 7 , the housing 27 of the crusher 2 is in the form of a box open upwards and downwards and is divided transversely, by a vertical wall 28 delimiting two passages 29a and 29b, in correspondence with those 19a and 19b of the hopper 1.

Functionally, the housing 27 of the crusher 2 is also divided into an upper level of feed and a lower level of grinding. In each of these levels, it carries a group of two parallel and motorized shafts, respectively 32a and 32b and 34a and 34b. The shafts are mounted free to rotate in housing bearings and have a polygonal, for example hexagonal, section through which they are linked in rotation, respectively, to toothed arms 33 and to discs 35.

Toothed arms 33, visible figures 2 to 7 , are provided with notches or teeth at their diametric ends. They are wedged on their shaft, 32a or 32b, with the interposition of spacer rings 30 giving them a longitudinal spacing of the value of three to four discs 35. The shafts 32a and 32b have a larger center distance than the shafts 34a so that, in operation, the arms wedged on a shaft describe circular trajectories which do not intersect those of the toothed arms 33 of the other shaft. They are intended to catch the material introduced into the hopper 1, to pull it into the lower part of the crusher. Their action exerts on the food waste and on the cans, containers or bottles a pre-compression, which is added to the pulling action carried out for grinding by the discs 35 and therefore reduces the power demanded of the geared motor.

As shown in more detail the figure 6 , the discs 35 are provided over their entire periphery with hooked teeth 36. They are locked in rotation on their shaft 34a or 34b by the hexagonal profile of their axial bore, cooperating with that of the shaft. They are spaced longitudinally from each other by spacer rings 40 having a length equal to their thickness to form between them gaps 41 which can accommodate the disks of the neighboring shaft. It is these spacer rings 40 which determine a small functional clearance between opposite disks. The parallel shafts 34a and 34b have a center-to-center allowing the disks to intersect by engaging the disks of one of the shafts in the intervals 41 of the other shaft. In addition and as shown by Figures 6 and 7 , the teeth of the discs facing each other delimit circular trajectories which intersect.

Arrows 31 of the figure 6 show that the direction of rotation of the shafts 32a and 32b are opposite and that it is the same for the directions of rotation of the shafts 34a and 34b.

In the form of execution of the figure 5 , the connection in rotation between, on the one hand, a motor pinion 37, wedged on the motor shaft 3, and, on the other hand, driven pinions 38a, 38b, 38c and 38d, wedged on the shafts 32a and 32b and 34a and 34b, is ensured by a triple chain 39 with very resistant links ( figure 3 ), to eliminate the risk of breakdown by breaking the drive.

This drive mode of the shafts ensures their synchronization with constant speed ratios. By way of example, the grinding shaft 34a carries grinding disks 35, having a diameter of the order of 100 to 180 mm, and pivots with a speed V1, of the order of 18 revolutions / min, then that the other grinding shaft 34b pivots at a speed V2, of the order of 22 rpm, while the feed shafts 32a and 32b rotate at the same speed V3, of the order of 13 to 15 rpm.

The electric motor 3 is supplied by a speed variator itself controlled by the means arranged in the box 17 reacting to a sensor placed in the motor and measuring the instantaneous electric current necessary for driving the shafts. Thus, when the current drawn exceeds a warning value, for example due to significant mechanical forces to ensure the feeding and / or grinding, the power supply of the geared motor 3 is temporarily modified so that the trees which it drives stop and turn in the opposite direction, then return to normal, in an attempt to reduce the jamming forces by moving the materials which are the cause. Depending on the settings, this cleaning operation can be carried out several times in succession and lead to a complete stop, if the causes of the jamming are not removed and risk heating the gearmotor and damaging it.

To reduce the risk of mechanical breakdowns, for example consecutive to the destruction of a diametral arm 33, or the toothing of a disc 35, these elements have at least a thickness of the order of 10 to 18 mm, are made in alloy steel, treated to increase its hardness up to 58 HRC and have machined and ground side faces.

In one embodiment, in order to reduce the resistant torque originating from the simultaneous attack of food residues by the hook teeth 36 of the discs 35, each disc is set in rotation on its hexagonal shaft 34a or 34b with an angular offset of approximately 5 degrees compared to its neighbors. With this assembly, and as shown in the figure 6 , the teeth 36 juxtaposed on the same shaft are distributed in a helix and offer a start of non-linear grinding, which reduces the value of the instantaneous force.

In addition, to eliminate jams by accumulation of various shreds between the discs 35 and reduce friction, forcing the engine torque to be increased on the shafts 34a and 34b, the casing 27 of the crusher 2 comprises lateral stripping blades 42. Each blade 42 extends horizontally between an outer wall of the housing 27 and one of the two grinding shafts 34a or 34b, and is inserted, with reduced functional clearance, in each of the intervals 41 formed between the discs 35 wedged on the same tree, as shown in the figure 7 .

These blades 42 are made of the same material as the discs 35 and are manufactured in the same way and with the same treatments to offer the same resistance over time.

In addition to the arrangements which have just been described to improve the resistance of the device and to reduce the various breakdowns of its components, the device according to the invention also includes means securing its use by personnel not warned of the dangers of this one.

• Une barrière immatérielle F et 22-23 ménagée sur les bords de la trémie 1 pour déclencher l'arrêt du motoréducteur 3, si son faisceau F est occulté, de manière temporaire par le déversement de déchets, ou de manière permanente, par exemple par l'engagement dans la trémie des mains ou bras d'un opérateur. La barrière est associée à un automate du boitier 17 qui, pour une occultation temporaire, réalimente le motoréducteur après un arrêt de quelques secondes, mais maintient l'arrêt jusqu'à la fin de l'occultation.
• Des capteurs 43 disposés sur le bord supérieur avant du chariot 8, visibles à la figure 1, et détectant le remplissage maximal des bacs 4a et 4b, pour déclencher l'arrêt du motoréducteur 3.
• Et un capteur 44, visible à la figure 5, et disposé sur le volet inférieur de la porte 10 en deux volets pour en détecter l'ouverture et déclencher l'arrêt du motoréducteur 3.

These means include, for example:

• A light curtain F and 22-23 arranged on the edges of the hopper 1 to trigger the stopping of the gearmotor 3, if its beam F is obscured, temporarily by the dumping of waste, or permanently, for example by l engagement in the hopper of an operator's hands or arms. The barrier is associated with an automaton of the box 17 which, for a temporary occultation, re-energizes the gearmotor after a stop of a few seconds, but maintains the stop until the end of the occultation.
• Sensors 43 arranged on the upper front edge of the carriage 8, visible at the figure 1 , and detecting the maximum filling of the tanks 4a and 4b, to trigger the stopping of the geared motor 3.
• And a sensor 44, visible at the figure 5 , and arranged on the lower flap of the door 10 in two flaps to detect the opening and trigger the stopping of the geared motor 3.

As shown figure 1 , the upper door flap has a tab 45 projecting downward and coming in the closing path of the lower flap, to follow its closing movement, allow the operation and guarantee the safety of the personnel by preventing its opening without opening the lower flap triggering the shutdown of the power supply.

All these sensors are electrically connected to the means of the box 17 so that they react on the power supply of the gear motor 3 to stop the latter as soon as a hand of the operator or the personnel is no longer safe and risks being caught by the toothed arms of the feeding means or by the teeth of the grinding discs 35.

When the device is in use, door 10 closed, the carriage 8 is entirely in the cabinet 9 and connected by its single connector 18 to an external power cable reaching the cabinet.

In this configuration, opening door 10 to empty the tanks automatically stops the power supply to the gearmotor 3 and secures the device, if this has not been done by one of the sensors 43 having detected the filling of one of the tanks.

When it is necessary to serve, the carrier of each tray P brings the tray close to the appliance and empties into the opening 13 the food waste with, if necessary, the non-reusable crockery and paper towels. The lane 19a of the hopper then that 29a of the crusher housing orient this waste towards the toothed arms 33, then towards the grinding discs 35. The ground material falls into the tank 4a.

Before or after, the remainder of the drink contained in a can or other disposable container is emptied into the opening 15, where the funnel 25 and the network 26, conduct the liquid to the tank 4c. Then, the container, the can or the bottle is thrown through the opening 14 and guided by the lanes 19b and 29b in the grinder. This transforms the container, can, bottle into shreds which fall into the tray 4b.

Given the precautions taken to improve the resistance of the components of the appliance, it can operate durably, without a breakdown stopping the recovery of food waste. However, in the event that such a failure occurs and proves to be irreparable on site, for example by broken element, component failure, blocking jam or simply to minimize the time of non-operation of the device, the collection of waste and their crushing are stopped only the time to take the carriage 8 out of the cabinet 9 and replace it with another carriage, identical or similar, with components in working condition.

In other embodiments, the carriage is movable on rails integrated into the cabinet. Similarly, to facilitate their movement, the waste collection bins are mounted on casters.

As a variant, the device is supplied with a set of several carriages, each equipped with different grinding members. In such a case, the cabinet is also supplied with removable upper walls, in order to be able to adapt to the different grinding compartments. Such a kit makes it possible, with the same device, to be able to choose to grind only food waste, than non-food waste of various nature, for example made of metal, plastic, glass, polystyrene, cardboard or wood. This allows greater adaptability of the device.

As a variant, refrigeration and / or ventilation means equip the device.

The device control and management unit can be remotely controllable, for example by a wireless connection.

A parking meter can be mounted on the device and limit periods of use.

Similarly, a coin mechanism can equip the device when it is, for example, in a public place and intended for public use.

In addition to the safety elements mentioned, it is possible to equip the device with visual and / or audible alarms, if necessary associated with physical means for automatically blocking access to the active parts of the device, for example the door. face and openings in the upper part.

In another embodiment, the separation of the hopper is movable, for example by sets of grooves, which makes it possible to adapt the dimensions of the collection bins.

In one embodiment, the shredder collector is adapted to regularly carry out, in a cyclic manner, cleaning of the various organs. The cleaning is advantageously configurable by the user.

Full bin alarms are preferably provided.

It is also possible to provide an automatic detection of engine overtorque, for example when an unexpected object is placed in the crusher and this entails a risk of breakage. Such an alarm is advantageously coupled with an automatic cleaning.

It is understood that the starting and / or stopping of the grinding collector can be automatic, programmable or entirely manual.

With such a solution, the use of a shredder collector is optimized, the latter being able to adapt to different places and uses. By way of nonlimiting examples, such a collector-shredder can be used in collective catering, in healthcare establishment, in educational establishment, in rest facility, in military establishment, in retirement homes, in traditional catering or not, in center holiday and leisure, in scientific, mining, petroleum or industrial bases or platforms at sea, on boats or trains or any other place in which the management and sorting of waste from catering or feeding people represent a large volume and must be optimized.

• a une structure mécanique plus résistante que celle des appareils existants, lui permettant de ne subir que très peu de pannes,
• améliore la sécurité des utilisateurs et du personnel de service, grâce à de nombreux capteurs de sécurité arrêtant automatiquement le broyeur dès qu'une manoeuvre manuelle est susceptible de blesser le personnel,
• et, en cas de panne, mécanique ou électrique, arrêtant l'appareil de manière accidentelle, remplace le temps de réparation par le temps de substitution du chariot défectueux par un autre chariot.

It appears from the above description that the apparatus according to the invention:

• has a more resistant mechanical structure than that of existing devices, allowing it to suffer very few failures,
• improves the safety of users and service personnel, thanks to numerous safety sensors that automatically stop the shredder as soon as a manual operation is likely to injure personnel,
• and, in the event of a mechanical or electrical breakdown, accidentally stopping the device, replaces the repair time with the replacement time for the defective truck with another truck.

Claims (10)

Catering waste collector-shredder comprising a cabinet (9) provided with a facial door (10) and comprising in an upper wall (11) at least two openings (13 to 15), said collector-shredder also comprising a hopper of feed (1), a crusher (2) delivering on at least one ground material receiving tank, disposed under the crusher and without contact with it, drive means (3 and 39), electrical connection means (18 ) and means (17) for operating and securing control, characterized in that the hopper (1), the crusher (2), the drive means (3 and 39), the electrical connection means (18) and the means (17) for operating control and for securing, are carried by the chassis (6) of a carriage (8), said carriage (8) being removable and interchangeable and fitting under the upper wall (11) furniture (9) and in that the electric circuit of the carriage (8) is supplied by a single connector (18 ), suitable for receiving the plug of an electrical supply cable. Catering waste collector-shredder according to claim 1, characterized in that it comprises two independent bins (4a, 4b) respectively for receiving shreds of mixed food and shredded cans, bottles or containers, while the hopper (1) is divided by a vertical separator (19) into two lanes (19a, 19b) corresponding to the underlying tanks. Catering waste collector-shredder according to claim 1 characterized in that the upper wall (11) of the cabinet has a third opening (15) under which is arranged a funnel (25) for collecting liquids, this funnel being part of a tubular network (26) leading to a third collection tank (4c). Catering waste collector-shredder according to claim 1 characterized in that the upper plate (6a) of the chassis (6) carries the hopper (1) and the shredder (2) with its geared motor (3), while its lower part is divided into an anterior zone (A1) for receiving the bins (4a, 4b and 4c) for collecting waste and liquids, and into a posterior zone (A2) supporting a control box (17) which, containing the means for command and control, is accessible by a rear door (17a). Catering waste collector-shredder according to claims 1 and 4, taken together, characterized in that the shredder (2) is divided by a transverse wall (28), into two vertical corridors (29a and 29b), corresponding to those ( 19a and 19b) of the hopper, and vertically a) in a lower grinding level, in which its two parallel shafts (34a and 34b) are motorized, with reverse rotations and at different and synchronized speeds, and carry grinding discs (35) which, provided with peripheral hooked teeth (36), are spaced and are inserted in the intervals (41) between disks of the neighboring tree, and b) an upper level of feed, in which two other parallel trees (32a and 32b), also motorized and with synchronized reverse rotations, carry toothed diametrical arms (33), spaced apart longitudinally and capable of catching the waste discharged into the hopper (1) by providing a pulling force downward, s' adding to the drive torques provided by the grinder discs; while c) the shafts (32a-32b and 34a-34b) of the two levels being connected, by a chain transmission (39), to a gearmotor (3) with variable speed drive controlling the current thereof to manage its stop and resume in reverse until unlocked. Catering waste collector-shredder, according to claims 1 and 5 taken together, characterized in that it comprises cleaning blades (42) extending horizontally between the housing (27) of the shredder and each of the two motorized shafts ( 34a and 34b) of the lower level, each blade (42) being inserted with a reduced functional clearance in one of the intervals (42) formed between the discs (35) wedged on the same shaft. Catering waste collector-shredder according to claims 1 and 5 taken together, characterized in that each disc (35) comprises an axial bore of polygonal cross section by which it is locked in rotation on a shaft (34a or 34b) similarly cross section, each disc (35) being angularly offset with respect to its neighbors, so that the teeth of the discs of a shaft are distributed in helices and offer a grinding attack in helix. Catering waste collector-shredder according to claim 1, characterized in that the hopper is secured by a light curtain (F) comprising, a transmitter (22) and a receiver (23) arranged opposite and in two from its opposite edges, this barrier being associated with a safety automaton managing the stopping of the geared motor (3), as soon as this barrier is obscured, then its restarting after detection of the passage of food waste. Catering waste collector-shredder according to claim 1 characterized in that the upper front edge of the carriage (8) carries sensors (43) interrupting the supply to the shredder (2) as soon as they are filled. Catering waste collector-shredder according to claim 1 characterized in that the door (10) of the piece of furniture (9) comprises two shutters, of which the lower one supports a sensor (44) connected to the means for controlling and securing the shredder (2 ) to stop the operation of the crusher, upon opening of said door, while the upper one carries a lower tab (45) projecting downward in the closing path of the lower door.

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