Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
  • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
  • B26D3/18—Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
  • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
  • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
  • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
  • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
  • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
  • B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
  • B26D1/29—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting with cutting member mounted in the plane of a rotating disc, e.g. for slicing beans
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
  • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
  • B26D1/0006—Cutting members therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
  • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
  • B26D3/18—Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like
  • B26D3/22—Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like using rotating knives
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
  • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
  • B26D1/0006—Cutting members therefor
  • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
• • 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
  • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
  • B26D3/28—Splitting layers from work; Mutually separating layers by cutting
  • B26D3/283—Household devices therefor
  • B26D2003/288—Household devices therefor making several incisions and cutting cubes or the like, e.g. so-called "julienne-cutter"
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
  • B26D2210/00—Machines or methods used for cutting special materials
  • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers

Definitions

• the present invention relates to a motorized device for processing food. It applies, in particular, to the field of vegetable cutters. More particularly, the invention applies to the cutting of fruits and vegetables to form sticks, matches or fries and in particular to the cutting of potatoes into fries before cooking.
• disc / grid assemblies used in food processing equipment to cut vegetables according to this principle, limit the section of the sticks to a square of eight millimeters side minimum. A slice of the desired thickness greater than or equal to eight millimeters is presented upstream of the cutting grid. When the wafer comes into contact with the series of parallel blades carried by the grid and spaced apart by a value substantially equal to the thickness of the wafer, the latter is split into sticks of square sections.
• the slice is necessarily cut into a reduced thickness, for example less than eight millimeters, and it therefore offers a reduced buckling resistance when pushed against the louvre blades.
• the buckling resistance is proportional to the square of the thickness.
• the difficulty is notably to make fries with a square section of six millimeters per side because the slices are much more prone to breakage than slices of eight millimeters thick.
• potatoes which implement a rotary drive drum and at least one series of fixed blades held at its periphery.
• the potatoes are conveyed whole in the center of the rotary drum which have internal spiral surfaces which, with the combined action of centrifugal force, push the potatoes towards the peripheral surface where openings in the side wall of the drum leave remove the potato from a distance fixed by the distance from the casing which contains the drum.
• an apparatus implementing this device does not offer the diversity of cut of a device implementing a disc because the drum has only a thrust function. It is therefore impossible to envisage, for example, cutting vegetables into cubes with such a device, which is a major drawback.
• the invention aims to remedy all or part of these drawbacks.
• the invention relates to a motorized device for processing food comprising:
• a cover linked to the casing and surrounding the trajectory of the knife the cover being provided with a supply duct for bringing the food to be cut in said trajectory
• the output tool comprises a series of blades in which, for any pair of adjacent blades, the parts of these two adjacent blades located on the trajectory of the cut food, do not have any intersection of their orthogonal projections on a plane
• the orthogonal projection plane is the plane of the blade.
• the orthogonal projection of the useful part of a vertical blade on the vertical plane of an adjacent blade is entirely outside the useful part of this adjacent blade:
• the part located on the trajectory of the slice of foodstuff (useful part") of one of these blades in the general plan of the other of these blades does not include any point on the part of this other blade located on the trajectory of the slice of food.
• two adjacent blades of the series of blades do not pinch and laterally crush the same part of the foodstuff during its movement.
• the part thus formed shifts laterally by half a blade thickness without constraint since no second adjacent blade is located opposite of the first.
• the part of the foodstuff shifts laterally in the other direction by a half-thickness of blade without constraint, when it is divided by the cutting edge of a second adjacent blade since 'there is no other adjacent blade facing which could compress the food (see figure 16).
• each part of the foodstuff follows a sort of baffle, being separated by half a blade thickness, during its movement towards the outlet of the appliance, first on one side by a first of two adjacent blades, then on the other side, by the second, without at any point along its movement the commodity is compressed between two adjacent blades which would be opposite.
• the compression force is thus eliminated with respect to the arrangement of adjacent blades facing each other, on either side of the path of each part of the commodity, because the blades do not act simultaneously on the commodity at the same point of its trajectory.
• the invention makes it possible to produce straight sticks, that is to say of overall shape in rectangular parallelepipeds, of small section, for example square of six millimeters by six millimeters for potatoes, which corresponds to the demand of consumers.
• the blades have cutting edges whose average slope forms an angle less than 70 ° with a plane perpendicular to the axis of rotation.
• the cutting edge of the blade pierces the edge over its entire height at the same time.
• the perforation in the edge is progressive with a primer at the start, and the cutting forces are at their tower greatly reduced. This arrangement further contributes to limiting the stresses suffered by the slice of food during its division by the output tool, thus making it possible to cut weakly resistant foodstuffs into sticks of reduced section.
• the blades have cutting edges made up of a succession of concave arcs. These embodiments make it possible to give the cutting edges a succession of points formed by the intersections of successive concave arcs. The presence of these points is an alternative or a complementary arrangement to the inclination of the blades described above, which facilitates the cutting of the commodity by reducing the effort required to initiate the cut by the effect of perforation of the surface. by spikes. The reduction in cutting force thus obtained reduces the stresses suffered by the slice of foodstuff, thus contributing to the objective of being able to cut into sticks of reduced section, a foodstuff weakly resistant, in particular potato.
• At least one guide edge on the plate has an increasing elevation, in the direction of the trajectory of the product to be cut, above the bearing face of the product on the guide plate.
• the guide edge on the plate is necessary to bring the slice of food in the direction of the output tool located on the periphery of the trajectory of the knife.
• the guide edge acts and thus exerts forces on the slice of foodstuff subjected to the thrusting action in rotation of the drive member, to allow it to deviate from its trajectory towards the exit.
• the arrangements which give an increasing elevation of the guide edge, in the direction of the trajectory of the food to be cut, above the surface of the guide plate also contribute to reducing the stresses suffered by the food. because the groove that is created in the food during its movement around the guide edge, gradually forms after a start at the start.
• At least one guide edge on the plate has a cutting part at least in its upstream part in the direction of the trajectory of the food to be cut.
• the thickness of the blades is less than or equal to 0.3 mm.
• the cutting forces undergone by the food during its cutting by the blades are limited. The risk of breakage of the food is therefore reduced.
• the minimum distance between two adjacent blades measured in a plane perpendicular to the axis of rotation and in a direction perpendicular to the trajectory of the commodity in the vicinity of these two blades, is less than or equal to 8 mm .
• the distance between the knife and the guide plate is less than or equal to 8 mm.
• the output tool is mechanically connected to the guide plate in a removable manner.
• the exit tool can be easily cleaned or replaced by another exit tool.
• the object of the invention comprises at least two output tools, the spacing between the blades of one of the output tools being different from the spacing between the blades of another tool of exit.
• the knife is immobilized in translation by the guide plate, in the direction defined by the axis of rotation.
• Figure 1 shows, schematically and in partial exploded view, a first particular embodiment of the device object of the invention and, in perspective, two elements of this device
• Figures 2 to 1 1 show, schematically and in view from above, respectively from the first to tenth particular embodiments of an output tool object of the invention
• FIGS. 12 and 13 represent, diagrammatically and in side view, two particular embodiments of a guide of slices of foodstuff, of inclination of blade and of shape of sharp edge of blade,
• FIG. 14 represents, schematically and in sectional view, a holding disc and a guide plate of a second embodiment of the device which is the subject of the invention
• FIG. 15 represents, in top view, a retaining disc overhanging a guide plate of the first embodiment of the device object of the invention.
• Figure 16 shows the path of a slice of food cut by adjacent blades.
• an apparatus comprising only a single knife for cutting slices of foodstuffs.
• the invention extends to embodiments where several knives are used to form slices of food, for example two, three or four knives arranged on the same holding disc.
• facing applied to two blades, in particular two adjacent blades, means that the orthogonal projection of one of these blades on the general plane of the other of these blades comprises at least one point on this other blade , a point which therefore corresponds to a lateral pinching of the stick between these two adjacent blades.
• each part of the commodity follows a baffle trajectory 155 and 157, being separated by a half-thickness of blade, during its movement towards the outlet of the appliance, first on one side by a first of two adjacent blades, then on the other side, by the second of these two adjacent blades, without anywhere along its movement the commodity is compressed between two adjacent blades which would be opposite.
• the compression force is thus very reduced compared to the arrangement of adjacent blades facing each other, on either side of the path of each part of the commodity, because the blades do not act simultaneously on the commodity at the same point. of its trajectory.
• the height of the useful parts of the blades is greater than the distance between the holding disk 116 and the guide plate 109 (see below) so that no compression is exerted parallel to the wire of the blades.
• the sticks 159 and 160 are thus produced.
• FIGS. 1 and 15 show an embodiment of the apparatus 100 which is the subject of the invention.
• the apparatus 100 for processing food also called foodstuffs, comprises:
• a cover 106 linked to the casing 101 and surrounding the trajectory of the knife 104, the cover 106 being provided with a supply duct 107 for supplying the food to be cut in said trajectory,
• the output tool 1 12 comprises a series of blades 1 13 in which, for any pair of adjacent blades 1 13, the parts of these two adjacent blades 1 13 located on the trajectory of the cut food, have no intersection of their orthogonal projections on a plane
• the housing 101 of the treatment apparatus can be of any form known to the skilled person.
• the casing 101 is, for example, a cylinder trunk with a circular or parallelepiped generating curve. It is recalled here that a cylinder trunk is a trunk with a regulated surface defined by a guiding curve and a generative line traversing this curve.
• the casing 101 has an internal orifice housing the plate 109 and the output tool 1 12 and of dimensions corresponding to the dimensions of the plate 109 and the output tool 1 12.
• the internal orifice has a shape of cylinder trunk with circular directing curve.
• the device 100 has a cover 106 connected to the casing 101.
• the cover 106 has a shoulder, of dimensions corresponding to the dimensions of the casing 101, surrounding a part of the casing 101 facing the interior orifice.
• the shoulder may include locking means between the cover 106 and the casing 1 01.
• the locking means can comprise at least one lug fitting with a corresponding orifice on the casing 101.
• the locking means condition the operation of the drive motor 1 02.
• the deactivation means can be a push button activated by at least one lug of the locking means during locking.
• the cover 106 is provided with a supply duct 107 for bringing the food to be cut in said trajectory.
• the device 100 includes a pusher (not shown) of a shape corresponding to the shape of the supply duct 107. This pusher allows the food to be cut to be cut in the path of the knife 104 without being injured.
• the supply duct 107 is a trunk of cylinder with a bean-shaped guiding curve, inscribed in orthogonal projection in the surface defined by the trajectory of the knife and from the guiding right parallel to the axis of rotation 1 15.
• the knife 1 04 is mounted on a holding disc substantially in the form of a disc of radius slightly greater than the largest dimension of the supply duct 1 07 measured from the axis of rotation 1 15 and in a plane perpendicular to it.
• the holding disc 1 16 and the guide plate 109 may not be planar but, on the contrary, be conical or toric, for example.
• the cutting edge 105 of the knife 104 is continuous and its ends, seen in a plane perpendicular to the axis of rotation 115, are located outside the orthogonal projection of the trunk guide curve cylinder which forms the supply duct 107.
• the bean-shaped guiding curve at the base of the cylinder trunk constituting the supply conduit 107 is developed to substantially cover three-quarters of the surface swept by the knife 104. This arrangement makes it possible to give the supply duct 107 a larger useful load volume of food to be cut.
• the opening of the supply duct 107 is constructed on the basis of a cylinder trunk with a circular directing curve and the duct 107 then surrounds the axis of rotation 1 1 5, which exposes loading the food to be cut into the supply duct, on a surface of the disc larger than the surface defined by the path of the knife 104, in particular in a central zone relative to the drive shaft where the knife 104 does not may have no cutting effect on the commodity.
• at least one partition (not shown) removably or not linked to the supply duct carries surfaces which occupy a central volume preventing the foodstuffs from being pushed onto the central zone where the knife 104 is inactive.
• the partition is located substantially in alignment with the surface of the outlet tool 1 12 most downstream relative to the direction of rotation of the knife 104. With this arrangement, a slice of food cut by the knife 1 04, is located in orthogonal projection on the guide plate 109, either upstream or downstream of the orthogonal projection of the partition.
• the apparatus 100 does not include a pusher for bringing the food to be cut into the path of the knife 104.
• the supply duct 107 rises from the path of the knife in a direction not parallel to the axis of rotation 1 15 and has surfaces which form an acute angle relative to the trajectory of the knife 104.
• the end of the supply duct furthest from the knife 104 is surmounted by a hopper intended to receive food to be cut and provided with walls arranged in a baffle so that a hand of the user cannot come into contact with the knife 104 in motion.
• the foodstuffs located in the hopper arrive by gravity in the opening of the supply duct, then enter the path of the knife 104.
• the drive motor 102 is a drive motor known to those skilled in the art.
• the connection between the drive motor 102 and the shaft 103, and the connection between the shaft 103 and the knife 104, for example by means of a key or a bayonet pin, are known to man. of career.
• the knife 104 is mounted on a holding disc 1 16. At the bottom left of Figure 1, this holding disc 1 16 is shown twice on these two faces.
• the holding disc 1 1 6 has substantially the shape of a solid disc having an opening 108 whose sharp edge 105 forms one of the edges.
• the opening 1 08 allows the passage of the foodstuff.
• the cutting edge 105 causes the food to be cut and the cut part, in the form of a slice or strip, then falls on the plate 109 by gravity.
• the cutting edge 105 may have a shape, seen from above, in arcs of a circle or rectilinear.
• the distance between each lower surface of the holding disk and the plate 109, measured along the axis of rotation 1 15, must be at most as close as possible to the thickness of the slice, or lamella, of the foodstuff which must be split by the exit tool 1 12.
• the plate rests on the casing and the distance from the plate to the disc along the axis of rotation is fixed by the pin linked to the drive shaft, for example by a bayonet system.
• said distance is determined by the cumulation of 15 different dimensions in the most unfavorable situation.
• the dimensional tolerances inherent in mass production techniques can lead to a variation of this distance greater than 2.5 millimeters. If we want a thickness of the slice of food of 6 millimeters, such tolerances become prohibitive and the device no longer ensures its function.
• the pin 1 18 fixing the holding disc 1 16 of the knife 104 to the shaft 103 is kept for the rotary drive of the knife but by the use of a longitudinal groove 1 17 in the hub 122 of the disc holding 1 16, the pin 1 1 8 does not determine the axial position of the latter along the shaft 103.
• the holding disc 1 16 is directly supported on the guide plate 109 in the central part, it is ie close to the shaft 103, by means of facing surfaces and adapted to friction, since the guide plate 109 is fixed and the holding disc 1 16 rotates.
• the pin 1 18 therefore has only a drive function and not a drive and positioning function as in the prior art.
• the knife 105 is carried by a holding disc 1 16 which comprises at its center a hub 122, which is freely adjusted on the rotating shaft.
• a drive system for the holding disc 1 16 by the rotating shaft is provided for example by a key between the shaft and the hub 122 of the holding disc 1 16 or, as illustrated in FIG. 14, by a pin 1 18 inserted transversely into the shaft opposite at least one groove 1 17 arranged for this purpose longitudinally in the hub 122 of the retaining disc 1 16.
• the retaining disc 1 1 6 is therefore driven in rotation by the shaft and remains free relative to the latter in the direction defined by the axis of rotation 1 15.
• This last degree of freedom in translation is blocked by direct support of the retaining disc 1 16 on an upper surface of the guide plate 109, preferably in a central zone close to the hub 122 and by using facing surfaces of shapes, dimensions and nature chosen by a person skilled in the art to reduce friction, or even eliminate them by a rolling effect.
• the retaining disc 1 16 comprises on its hub 122 a locking device 123 below the guide plate 109, for example, as in FIG. 14, a screwed nut, which also rests on a surface lower of the guide plate 109.
• the latch 123 presses on the bottom, preferably in a central area close to the hub 122 and by using surfaces vis-à-vis shapes, dimensions and nature chosen by those skilled in the art to reduce friction, or even eliminate them by a rolling effect.
• the position of the holding disc 1 16 and therefore of the knife 104, of its trajectory and of the drive member 1 14, in the direction defined by the axis of rotation 1 15, is directly determined by the guide plate 109 of the commodity.
• the disc is then linked to the plate 109 to undergo forces in both directions in the direction defined by the axis of rotation 1 15.
• the disc, knife, guide plate, drive member assembly is positioned in the space in the direction of the axis 1 15, only by the support of the plate 109 on the casing 101.
• the knife 104 is preferably immobilized in translation by the guide plate 109, in the direction defined by the axis of rotation 1 15. Under these conditions, the distance between the holding disc 1 16 and the plate 109 no longer depends on a small number of dimensions, or even two dimensions only, depending on the embodiments. It then becomes easy for mass production to limit the variation of this distance to a low value, for example of the order of 0.2 to 0.3 mm, compatible in all circumstances with the function.
• these embodiments solve a second technical problem related to the drive of the holding disc 1 1 6 of the knife 104 by bayonet and appeared to be major due to the great inertia of the disc along its axis of rotation in the embodiments of known devices.
• the holding disc necessary to cut slices of food of the order of six millimeters is thicker, therefore more massive, that is to say with higher inertia, than a holding disc for cutting thicker slices of foodstuffs.
• the bayonet drive used in the prior art by nature creates a significant angular play between the pin and the holding disc.
• the consequence of this game is that at each start, the pin strikes the disc, and conversely at each braking, the disc strikes the pin on the opposite side due to its inertia.
• the energy used in these successive shocks is directly proportional to the inertia of the disc. Endurance tests have shown that this leads to the pin breaking prematurely, and that such a type of drive appeared unsuitable.
• the embodiments set out above avoid the use of such a form of bayonet and thus eliminate all the angular play and consequently any shock effect.
• the holding disc 1 16 comprises at least one drive member 1 14 subjected to the same rotation as the knife 104 around the axis 1 1 5, following a trajectory located on the side of the trajectory of the knife 1 04 opposite the duct 107 supply, to drive the food cut between the guide plate 109 and the path of the knife 104 to the output tool 1 12.
• the drive member 1 14 is, in the embodiment illustrated in Figure 14 , angularly distant from the knife 104 on the holding disc 1 16. On the contrary, in the embodiment illustrated in FIGS. 1 and 15, the drive member 1 14 is angularly close to the knife 1 04 on the holding disc 1 1 6.
• the drive member 1 14 is, for example, a protuberance known to those skilled in the art on the side of the retaining disc opposite the duct 107.
• the protrusion forms a convex relief passing through the disc holding 1 16 along a radius of the holding disc 1 16.
• the organ for dragging 1 14 pushes the cut product on the plate 1 09 to the output tool 1 12.
• the distance between the knife holding disc 1 04 and the guide plate 109 is equal to or very slightly greater than the thickness of the slice of food.
• the plate 109 has substantially the shape of a solid disc comprising a part provided with at least one guide edge 1 1 1 to the output tool 1 12.
• the guide edge 1 1 1 can be a rounded tongue or on board gross.
• Preferably the guide edge 1 1 1 follows a straight line perpendicular to a radius of the plate 109 and parallel to at least one blade 1 13 of the output tool 1 12.
• the output tool 1 12 comprises a set of blades 1 13 substantially on the periphery of the plate 109, on about a quarter of the periphery of the plate 109.
• the output tool 1 12 and the plate 109 of the apparatus 100 can be combinations of the embodiments of output tools described with reference to FIGS. 2 to 1 1.
• the outlet port 1 10 is an orifice on one of the lateral surfaces of the casing 101.
• the housing 101 may be provided with a flap around the outlet orifice 1 1 5 to prevent the cut foodstuffs from being scattered and to locate the fall of the cut foodstuffs.
• each element of the device 100 with which the food can come into contact is detachable to be changed or cleaned.
• the output tool 1 12 is mechanically connected to the guide plate 109 in a removable manner so that the output tool 1 12 can be changed easily.
• the output tool 1 12 can be assembled to the guide plate 109 by means of a pin which fits into a groove of corresponding shape.
• the device 100 comprises at least two output tools 1 12, the lateral spacing, that is to say in the plane perpendicular to the axis of rotation of the motor, between the blades of one of the output tools 1 12 being different from the spacing between the blades of another output tool.
• the foodstuffs for example potatoes
• the foodstuffs come into contact with the knife 104, either by gravity, either by being pushed by the pusher.
• the cutting edge 105 which is rotated by the motor 102 by means of the shaft 1 03, cuts the product into strips of substantially equal thickness. As it is formed, the strip is guided by the knife 104 in the direction of the opening 108 to deposit by gravity on the plate 109 which is fixed.
• the knife holding disc completely contains the lamella in its thickness against the guide plate, then the lamella is pushed by the drive member 1 14 which is fixed under the disc holding the knife 104 and therefore driven in rotation at the same speed and along the same trajectory as knife 104.
• the drive member 1 14 pushes the strip on the plate 109 towards the guide edges 1 1 1 which guide the strips pushed towards the blades 1 13 of the outlet tool 1 12.
• the strip passes through the outlet tool 1 12 towards the outlet orifice 1 10 while being cut into sticks, fries or matches.
• the cutting edge 105 of the knife 104 is spaced about six millimeters from an upper surface of the knife holding disc 104 and the blades 1 13 are spaced about six millimeters.
• Figures 2 to 1 1 show ten arrangements of output tool blades.
• Figures 12 and 13 show two embodiments of blades and guide edges different and compatible with each other and with the arrangements of Figures 2 to 1 1.
• each blade is defined by an end called “upstream end” and an end called “downstream end” on the path followed by the commodity on the tray 109 to the outlet orifice 1 10.
• the upstream end is the end which comes into contact with the food to cut it.
• the upstream end has the cutting edge of the blade.
• the downstream end is the end closest to the outlet.
• the embodiments of output tools 222 to 922 illustrated in FIGS. 2 to 9 include fourteen blades. These blades are in parallel planes spaced according to a predefined cutting size, for example six millimeters. More generally, the number of blades of the output tool is defined by the predefined cutout size and the size of the output tool 1 12.
• FIGS. 2 to 1 there is shown, for each blade, a line perpendicular to this blade passing through the upstream end of this blade. These lines show that the orthogonal projections of a blade on the plane of each blade which is adjacent to it have no point on this adjacent blade. In other words, for any pair of adjacent blades, the parts of these two adjacent blades located on the trajectory of the cut product, do not have any intersection of their orthogonal projections on a plane parallel to the axis of rotation and
• output tools 222 to 1022 illustrated in FIGS. 2 to 10 include guide edges 221 to 1021 parallel to each other and parallel to the blades.
• the part of the plate 209 to 1009 covered by the guide edges represents approximately a quarter of the surface of the plate 209.
• FIG. 2 shows a first arrangement of blades, 201 to 214, of an output tool 222.
• the blades, 201 and 202 being parallel, the orthogonal projection of each other blade on the plane of a blade, 201 for example, is such that:
• the orthogonal projection has an alternation between a downstream end of a blade 202 and the upstream end of an adjacent blade 201, such that the orthogonal projections of the fourteen blades are aligned without overlapping and
• Each downstream end of a blade 202 does not intersect with the upstream end of another blade 201 directly adjacent.
• part of the upstream ends of the blades are placed on an arc of a circle corresponding to the periphery of the disc forming the plate 209. Another part of the upstream ends of the blades are placed on a tangent line at the periphery of the disc forming the plate 209. This makes it possible to initiate the cutting of the commodity and to accompany its passage through the spaces between the other blades without two adjacent blades being opposite one another and do not compress the stick during training.
• the upstream end of the blades 209 to 214 are placed on an arc corresponding to the periphery of the disc forming the plate 209 and the upstream end of the blades 201 to 208 are placed on a line tangent to the periphery of the disc forming the plate 209.
• the ninth arrangement illustrated in FIG. 10 has fewer blades, since the dimension of the outlet orifice has remained unchanged and the spacing between the blades varies by a greater value between the blades 1001 and 1002 to a lower value between the blades 1008 and 1009.
• the sections of the matches, sticks or fries produced with the output tool 1022 are, at least in part, rectangles of different lengths.
• FIG. 1 we observe a tenth arrangement of blades, 1 101 to 1 1 1 1, of an output tool 1 122.
• the output tool 1 122 comprises eleven blades, 1 101 to 1 1 1 1 . These blades are spaced according to a predefined cutting size, for example seven millimeters. More generally, the number of blades of the output tool 1,122 is defined by the predefined cutting size and the dimension of the output tool 1,122.
• the guide edges 1 121 are arcs of a circle, preferably concentric, but whose center is different from the axis of rotation 1 15 of the knife 104.
• Each blade, 1 101 to 1 1 1 1 is tangent to the arc of circle defining a guide edge 1 121.
• the blades, 1 101 to 1 1 1 1 are not parallel to each other but each individually is tangent to the trajectory of the cut commodity defined by the guide edges 1 121. Thus without being parallel, they do not constitute an obstacle to the passage of the foodstuff and the operation of cutting the slice, or strip, into fries, matches or sticks is obtained without difficulty. On the contrary, the angles between the planes of the blades cause a separation of the fries, matches or sticks being formed, which favors their cutting.
• the radius of the circular arc defining each guide edge 1,121 is greater than or equal to one and a half times the radius of the disc defining the plate 1,109.
• the arcs of circle of the guide edges are concentric. This arrangement makes it possible to deflect the initially circular trajectory of the wafer (imposed by the drive member) by a segment which is similar to a portion of a spiral rather than to a straight line segment.
• the part of the plate 1 109 covered by the guide edges 1 121 represents approximately a quarter of the surface of the plate 1 109.
• FIG. 12 shows an embodiment of an output tool 1222 in section.
• the output tool 1222 comprises at least one blade 1201.
• the blades 1201 have cutting edges whose average slope forms an angle less than 70 ° with a plane perpendicular to the axis of rotation 1 15. In fact, when the angle is greater than 70 °, the blade penetrates less easily into the food and cutting capacity is limited.
• the guide stop ends in a shoulder at a predefined distance from the blade 1201.
• the output tool 1222 has at least one guide edge 1221. At least one guide edge on the plate 1209 has an increasing elevation, in the direction of the trajectory of the food to be cut, above the upper surface of the guide plate.
• the distance between the guide edge and the disc supporting the knife 104 is less than or equal to the desired thickness of the commodity strip.
• FIG. 13 shows an embodiment of an output tool 1322 in section.
• the output tool 1322 comprises blades 1301 which have cutting edges made up of a succession of concave arcs.
• the succession of concave arcs forms a succession of points, one at each intersection of concave arcs, substantially similar to that of a bread knife.
• the blades 1301 are preferably inclined as shown with reference to FIG. 12.
• the blades 1301 have cutting edges whose average slope forms an angle less than 70 ° with a plane perpendicular to the axis of rotation 1 15.
• the tool 1322 comprises at least one guide edge 1321 on the plate 1309 having a cutting part 1310 at least in its upstream part in the direction of the trajectory of the food to be cut.
• the cutting part makes it possible to precut the commodity and guide it towards the blades 1301.
• the cutting part represents a dimension less than ten percent of the desired dimension of the food to be cut.
• the output tool 1 12 shown in Figure 1 can be any embodiment of the output tools shown in Figures 2 to 13.
• the output tools shown in Figures 2 to 1 1 may have the particular characteristics set out with reference to Figures 12 and 13, for the blades and the guide edges in any combination.
• the blades are produced and sharpened individually and are fixed on a support.
• the thickness of the blades is less than or equal to 0.3 millimeters.
• the minimum distance between two adjacent blades, measured in a plane perpendicular to the axis of rotation and in a direction perpendicular to the trajectory of the commodity in the vicinity of these two blades is less than or equal to eight millimeters.
• the spacing between the blades of the output tool is not constant.
• the cutting edges of the blades of the output tool are not all contained in a plane parallel to the axis of rotation. With these arrangements it is possible to divide a slice of food into sticks of trapezoidal sections. In embodiments, cutting edges of the blades of the output tool are wavy. With these arrangements it is possible to divide a slice of foodstuff into sticks whose faces cut by the blades of the tool have substantially the same undulations as the edges of the blades.

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

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• 2018
  • 2018-12-21 FR FR1873885A patent/FR3090446B1/fr active Active
• 2019
  • 2019-12-20 US US17/309,810 patent/US20220072727A1/en active Pending
  • 2019-12-20 EP EP19829198.1A patent/EP3898138A1/de active Pending
  • 2019-12-20 BR BR112021012049-1A patent/BR112021012049A2/pt unknown
  • 2019-12-20 WO PCT/EP2019/086641 patent/WO2020127948A1/fr unknown
  • 2019-12-20 CN CN201980088613.6A patent/CN113631338B/zh active Active

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