EP1919802A2 - Element for making a package for packaging a food product, corresponding package, assembly comprising such a package and a food product, cutting installation and method - Google Patents

Element for making a package for packaging a food product, corresponding package, assembly comprising such a package and a food product, cutting installation and method

Info

Publication number
EP1919802A2
EP1919802A2 EP06778861A EP06778861A EP1919802A2 EP 1919802 A2 EP1919802 A2 EP 1919802A2 EP 06778861 A EP06778861 A EP 06778861A EP 06778861 A EP06778861 A EP 06778861A EP 1919802 A2 EP1919802 A2 EP 1919802A2
Authority
EP
European Patent Office
Prior art keywords
packaging
package
cutting
blade
sheet
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
EP06778861A
Other languages
German (de)
French (fr)
Other versions
EP1919802B1 (en
Inventor
Sylvain Dal
Jean-Claude Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unibel SA
Original Assignee
Fromageries Bel SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fromageries Bel SA filed Critical Fromageries Bel SA
Priority to PL06778861T priority Critical patent/PL1919802T3/en
Priority to EP20080165975 priority patent/EP2008948B1/en
Priority to PL08165975T priority patent/PL2008948T3/en
Publication of EP1919802A2 publication Critical patent/EP1919802A2/en
Application granted granted Critical
Publication of EP1919802B1 publication Critical patent/EP1919802B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B26D3/10—Making cuts of other than simple rectilinear form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/06—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/10—Forming sector-shaped packages of cheese or like plastic products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B65B61/182—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying tear-strips or tear-tapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/66—Inserted or applied tearing-strings or like flexible elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/66—Inserted or applied tearing-strings or like flexible elements
    • B65D75/68—Inserted or applied tearing-strings or like flexible elements extending through wrapper closure or between wrapper layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B65D85/76—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials for cheese
    • 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
    • B26D11/00—Combinations of several similar cutting apparatus
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2685—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member flexible mounting means
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type

Definitions

  • Element for the production of packaging packaging of a food product, corresponding packaging, assembly comprising such a packaging and a food product, installation and cutting process.
  • the present invention relates, in a first aspect, to an element for producing a packaging packaging of a food product, the element being of the type comprising:
  • zone intended to form a bottom of substantially triangular shape the zone intended to form the bottom having a median axis
  • a means for guiding tears in the sheet the guiding means extending substantially along lateral edges of the zone intended to form the bottom, the guiding means forming a single pull tab for causing tears, the tongue traction passing through the intermediate zone and projecting beyond the sheet.
  • packaging with substantially triangular bottoms means the containers whose funds are actually triangular with rectiiignes sides, but also those whose funds have a curved side and therefore have a disc sector shape.
  • FR-2,597,441 describes an element of the aforementioned type for conditioning a portion of processed cheese.
  • the traction tongue extends in the intermediate zone along the central axis of the zone intended to form the bottom of the package.
  • the pulling of the tongue is made towards the tip and the second side wall of the package, in order to unfold the flap in which the pull tab is located.
  • the traction is performed in a second time to the bottom of the package and the heel, to initiate and spread the tears.
  • Such a gesture is perceived as complex and difficult to implement by some consumers.
  • An object of the first aspect of the invention is therefore to solve this problem by providing an element of the aforementioned type which makes it possible to facilitate the opening of a food product packaging package.
  • the first aspect of the invention relates to an element according to claim 1.
  • the element may comprise one or more of the features according to claims 2 to 6.
  • the first aspect of the invention also relates to a packaging for packaging a food product according to claim 7.
  • the packaging may have the features of claims 8 and / or 9.
  • the first aspect of the invention further relates to an assembly according to claim 11.
  • the food product is processed cheese.
  • the present invention relates, according to a second aspect, to a device for cutting, from at least one film, strips, the device comprising at least two blades having cutting son intended to face each other, the blades being movable. relative to each other along a direction orthogonal to the film to propagate a cut in the film along the cutting wires.
  • the invention is particularly applicable to the production of tear guide strips for processed cheese packaging packages.
  • the document FR-2 362 765 describes a cutting device of the aforementioned type. This type of cutting device is satisfactory for cutting strips from films with thicknesses greater than 36 .mu.m.
  • the second aspect of the invention relates to a cutting installation according to claim 12.
  • the installation may comprise one or more of the features of claims 13 to 21.
  • the second aspect of the invention also relates to a cutting method according to claim 22.
  • the method may comprise one or more of the features of claims 23 to 26.
  • the second aspect of the invention further relates to a package according to claim 27.
  • the guide strip has a thickness strictly less than 36 ⁇ m.
  • FIG. 1 is a schematic plan view of a packaging element for packaging processed cheese
  • FIG. 2 is a diagrammatic perspective view illustrating a step of producing the packaging from the element of FIG. 1;
  • FIG. 3 is a schematic perspective view of the completed package
  • FIG. 4 is a schematic perspective view illustrating the beginning of the opening of the package of FIG. 3, and
  • FIG. 5 is a diagrammatic perspective view illustrating a cutting and sealing device for tear-guiding members;
  • FIG. 6 is a view from above showing one of the blades of the installation of FIG. 5, and
  • FIG. 7 is a schematic perspective view illustrating a variant of the installation of FIG. 5.
  • the sheet 1 shown in FIG. 1 is a sheet intended for packaging a portion of processed cheese with a disk sector base.
  • the sheet 1 is for example made of aluminum coated with thermosealing lacquer.
  • the sheet 1 is shaped into a cup 2 by folding, according to the lines shown in dashed lines in FIG.
  • the sheet 1 comprises areas intended to form the different parts of the bucket 2. These different parts will be described later. The same references will generally be used to designate the portions of the bucket 2 and the corresponding zones of the sheet 1.
  • the bucket 2 comprises a bottom 3 in the form of a sector of disk delimited by two lateral edges 5 and 7 and an arcuate edge. 8. Perpendicular to the bottom plane 3, the bucket 2 comprises:
  • first lateral wall 9 and a second lateral wall 11 which extend along the rectilinear edges 5 and 7, and a curved heel-forming wall 13 which extends along the arcuate edge 8.
  • the side walls 9 and 11 meet along a point 15 opposite to the heel 13.
  • the side walls 9 and 11 and the heel 13 are extended by flaps, respectively 17, 19 and 21, intended to be folded along fold lines 23, 25 and 27, when closing the package.
  • the sheet 1 before folding further comprises intermediate zones 29, 31 and 33 disposed respectively between the walls 9 and 11 and their flaps 17 and 19, between the wall 9 and the heel 13 and their flaps 17 and 21, and between the heel 13 and the wall 11 and their flaps 21 and 19.
  • the side edges 35 and 37 of the heel 13 and the flap 21 extend the side edges 5 and 7 of the bottom 3.
  • the sheet 1 is also provided, on the side intended to form the inner face of the cup 2, two strips 51a and 51b tear guide.
  • the sheet 1 and the strips 51a and 51b thus form a packaging element.
  • the two strips 51a and 51b are, for example, made of polyethylene (PET) and have a thickness strictly less than 36 microns, for example 23 microns or 18 microns.
  • the strips 51a and 51b were heat sealed together and on the sheet 1.
  • the first band 51a comprises a main section 52a which extends substantially parallel and along the edge 5 along the bottom 3.
  • the main section 52a is extended, in the heel 13, by a first end 53a which is inclined at the birth of the heel with respect to the edge 35 towards the central axis A of the bottom 3. This inclination is for example 10 °.
  • the section 52a is extended by a second end 55a which, in the example shown, is inclined at an angle ⁇ with respect to the axis A.
  • the angle ⁇ is, for example, between 15 ° and 25 °.
  • This second end 55b passes slightly through the second lateral wall 11, then crosses the intermediate zone 29 and finally protrudes from the latter along a length I measured along the median axis A of the bottom 3.
  • the second band 51b has, at the around the heel 13, a shape symmetrical to that of the first band 51a with respect to the central axis A.
  • the main section 52b of the band 51b has a break 54b beyond which the main section 52b is no longer substantially parallel to the edge 7 but on the contrary the section, so that the second end
  • the main sections 52a and 52b meet at a point of intersection 57 located, for example, in the intermediate zone 29. This point of intersection 57 is spaced laterally from the median axis A.
  • the ends 55a and 55b of the strips 51a and 51b are superimposed, the end 55b being disposed under the end 55a and having the same shape as the end 55a.
  • the ends 55a and 55b are heat-sealed to one another and heat-sealed on the sheet 1. These two ends 55a and 55b thus form a single pull tab 58 which is spaced laterally from the central axis A and protrudes from the length I of the intermediate zone 29.
  • this tongue 58 is rectilinear and inclined at the angle ⁇ with respect to the median axis A.
  • the intermediate zones 31 and 33 connecting the side walls 9 and 11 and the heel 13 are folded from the bottom 3 in their middle along the lines 59 and 61 , visible in Figure 1.
  • the triangular flaps 63 and 65 thus formed are folded respectively on the side walls 9 and 11 along the side edges 35 and 37 of the heel 13.
  • the intermediate zone 29 supporting the ends 55a and 55b it is also folded in its middle along a fold line 67 (FIG. 1) and the triangular flap thus formed 69 (FIG. 2) is folded along the point 15 on the first lateral wall 9.
  • the pull tongue 58 protrudes upwardly beyond the fold line 23 and thus beyond the first side wall 9.
  • a second sheet 71 is deposited on the portion 70.
  • This second sheet 71 is, for example, also made of aluminum covered with heat-sealing lacquer.
  • the flaps 17, 19 and 21 are folded down and sealed on the second sheet 71 to form a cover 72 opposite the bottom 3.
  • the tongue 58 can be folded over the cover 72, for example during the sealing of the cover 72.
  • the tongue 58 thus forms a fold at right of the fold 23 connecting the first lateral wall 9 to the flap 17, without however, be plated or glued to the flap 17.
  • the tongue 58 is not sealed on the cover 72, and is therefore more easily grasped by a consumer, even if he has short nails.
  • An assembly 73 is thus obtained comprising a package 75, formed of sheets 1 and 71, and the portion of processed cheese 70 packaged in package 75.
  • the tongue 58 can be folded on the lid 72 not during the sealing of the latter, but when the assembly of the assembly 73.
  • the opening of the packaging 75 is carried out as illustrated in FIG. 4.
  • the pull tab 58 is spaced from the center axis A in the sheet 1, the primer and the propagation of the tears do not involve a significant change in the direction of pulling as in FR-2 597441.
  • the openness is therefore rational and likely to be implemented by virtually all consumers. Due to the existence of a single pull tab 58 in the sheet 1, and not two tabs 58 disposed on either side of the common axis and intended to be superposed during the folding of the sheet 1, the risks of mishandling the pull tab are reduced.
  • the tongue 58 being folded on the cover 72 in the package 75, it is found and can be easily grasped by consumers. The tongue 58 could be folded on the cover 72 since it protrudes beyond the first side wall 9 in the package 75.
  • the tongue 58 may not be folded or even protrude beyond the side wall 9.
  • the tongue 58 is then disposed along the first wall 9 as in the state of the art.
  • the tongue 58 may be formed by only one of the strips 51a and 51b.
  • the second band 51b may not have, beyond the point of intersection 57, end 55b superimposed on the end 55a.
  • the end 55b may not extend on the same length as the end 55a.
  • the pull tab 58 may have other shapes than those shown in FIGS. 1 to 4, and for example not be rectilinear.
  • intersection point 57 may be located in the second wall 11, or in the bottom 3 near the intersection between the edges 5 and 7.
  • the band 51b does not exhibit breakage 54b in its main section, as illustrated in FIG.
  • strips 51a and 51b can be replaced by guide means of other kinds.
  • the guide strips 51a and 51b described above were obtained by means of a cutting installation of at least one film as described below.
  • FIG. 5 illustrates an installation 80 for cutting and sealing guide strips 51a and 51b on sheets 1 previously cut.
  • the installation 80 includes:
  • the feed means 83a and 83b are for example of conventional type and may thus comprise traction rollers, as shown in the document FR-2 362 765.
  • the supply means 82 may have a conventional structure.
  • the cutting device 88 comprises two lower blades 90a and 90b and an upper blade 92.
  • the upper blade 92 has, in the example shown, a substantially triangular shape extended at its tip by a shank 93. Its lateral flanks 94a and 94b respectively oriented towards the rollers 86a and 86b present by example of the remains of about 1, 5 ° relative to the vertical.
  • the lower edges 96a and 96b of the flanks 94a and 94b form cutting threads whose profiles respectively correspond to the shapes of the guide strips 51a and 51b to be cut.
  • the installation 80 comprises means 98 for moving the upper blade 92 relative to the frame 81 between a high position, that the blade 92 occupies before cutting and which is illustrated in Figure 5, and a low position, the blade 92 occupies after cutting strips 51a and 51b.
  • the cutting wires 96a and 96b are situated respectively above the films 84a and 84b.
  • the cutting wires 96a and 96b are substantially horizontal and the displacement of the blade 92 between its high and low positions is substantially vertical, that is to say substantially orthogonal to the plane of the films 84a and 84b when they are at vicinity of the upper blade 92.
  • the blade 92 is pierced in the vicinity of its side flanks 94a and 94b of orifices 100a and 100b suction strips 51a and 51b cut. These orifices are connected to a non-represented vacuum source.
  • the lower blades 90a and 90b are respectively disposed under the films 84a and 84b, on either side of the upper blade 92. Their flanks 102a and 102b, which face each other, have upper edges 104a and 104b.
  • the cutting son 104a and 104b are arranged in the same plane which is slightly inclined relative to the horizontal for example 5 °.
  • the lower blades 90a and 90b are movable on the frame 81 substantially parallel to the plane of the films 84a and 84b when they are in the vicinity of the upper blade 92.
  • the lower blades 90a and 90b are articulated on the frame 81 by pivots 106a and 106b.
  • the blades 90a and 90b are thus movable between a close position and a position spaced apart from each other, the stroke of this displacement being small, for example of the order of 0.5 mm.
  • the cutting device 88 comprises means 108a and 108b for elastic return of the blades 90a and 90b in their close position.
  • these springs are arranged laterally outside the blades 90a and 90b, between these and the parts of the frame 81.
  • these springs 108a and 108b may for example be replaced by a single spring 108 connecting the blades 90a and 90b together.
  • these elastic return means are adjustable. In its high position as well as in its low position, the upper blade 92 is inserted laterally between the lower blades 90a and 90b.
  • the return means 108a and 108b then laterally plate the blades 90a and 90b against the blade 92.
  • the cutting wires 104a and 104b are pressed against the cutting wires 96a and 96b substantially parallel to the plane of the films 84a and 84b in the vicinity. of the blade 92 at points of contact 110a and
  • the installation 88 comprises an electronic control unit 112 for controlling automatically, in particular via the means 82, 83a, 83b and 98, the execution of the cutting cycle described hereinafter.
  • the upper blade 92 is initially in the high position, the contact points 110a and 110b are remote from the tail 93 of the upper blade 92.
  • the lower blades 90a and 90b are then in the close position.
  • the feeding means 82 placed a sheet 1 under the cutting device 88 and the feeding means 83a and 83b slightly advanced the films 84a and 84b so that a width corresponding to that of the strips 51a and 51b protrudes from the cutting wires 104a and 104b laterally to the upper blade 92.
  • the upper blade 92 is then lowered and the contact points
  • the displacement of the contact points 110a and 110b causes the gradual cutting of the strips 51a and 51b which are maintained by suction, as and when they are cut, under the upper blade 92 through the suction ports 100a and 100b.
  • the insertion of the blade 92 between the lower blades 90a and 90b causes their displacement towards their spaced position.
  • the blades 90a, 90b and 92 are held pressed against each other at the contact points 110a and 110b substantially perpendicular to the general directions of propagation of the cuts in the films 84a and 84b , thus producing a chisel effect.
  • the corresponding holding forces were materialized by the arrows 114a and 114b in FIG. 5 and the general directions of propagation of the blanks were materialized by the arrows 116a and 116b.
  • the upper blade 92 continues its stroke to its lower position in which it comes to apply the strips 51a and 51b cut against the sheet 1.
  • Heating means arranged in the frame 81 under the sheet 1 then make it possible to heat-seal the strips 51a and 51b between them and on the sheet 1.
  • the installation 80 of FIG. 5 makes it possible to produce strips 51a and 51b of small thickness, which facilitates the folding of the pull tab 58 on the cover 72 in the package 75 of FIG. 3.
  • the installation 80 makes it possible to use films 84a and 84b of smaller thickness, which significantly reduces the costs related to the production of the films. tears guide strips. It is therefore possible to use an installation implementing the chisel effect described above to produce guide strips of various shapes.
  • the cutting installation 80 can cut only one guide strip and not two simultaneously as in the example described above.
  • the cutting device 88 is a module that can be removed from the frame 81 to be able to adjust the various elements, including its means 108a and 108b of return.
  • the chisel effect can be provided by moving not all of one or more blades, but by deformation of parts thereof. This is illustrated in FIG. 7, where the installation 80 only provides the cutting of a band 51.
  • the lower blade 90 is then a deformable blade elastically horizontally.
  • elastic return means 108i to 108 3 are used to return the blade 90 against the upper blade 92.
  • the elasticity of the lower blade 90 may be sufficient to dispense with such means and ensure the application of the lower blade 90 against the upper blade 92. The blade 90 then itself forms the elastic return means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packaging Frangible Articles (AREA)

Abstract

The invention concerns an element comprising: a sheet (1) including an intermediate zone (29) located between two zones designed to form side walls (9, 11), the intermediate zone (29) being designed to form a flap folded along the tip against one first (9) of the side walls, and means (51a, 51b) for guiding tears in the sheet (1) said means forming a single pull tab (58) to cause tears, the pull tab (58) being, in the intermediate zone, spaced apart from the median axis (A) of the zone designed to form the base (3). The invention is, for example, applicable to packaging of melted cheese.

Description

Elément pour la réalisation d'un emballage de conditionnement d'un produit alimentaire, emballage correspondant, ensemble comprenant un tel emballage et un produit alimentaire, installation et procédé de découpe. Element for the production of packaging packaging of a food product, corresponding packaging, assembly comprising such a packaging and a food product, installation and cutting process.
La présente invention concerne, selon un premier aspect, un élément pour la réalisation d'un emballage de conditionnement d'un produit alimentaire, l'élément étant du type comprenant :The present invention relates, in a first aspect, to an element for producing a packaging packaging of a food product, the element being of the type comprising:
• une feuille comprenant elle-même :• a sheet including itself:
- une zone destinée à former un fond de forme sensiblement triangulaire, la zone destinée à former le fond ayant un axe médian,a zone intended to form a bottom of substantially triangular shape, the zone intended to form the bottom having a median axis,
- deux zones destinées à former deux parois latérales se rejoignant Ie long d'une pointe,two zones intended to form two lateral walls joining along a point,
- une zone destinée à former un talon opposé à la pointe,an area intended to form a heel opposite the tip,
- une zone intermédiaire située entre les deux zones desti- nées à former les parois latérales, la zone intermédiaire étant destinée à former un volet replié le long de la pointe contre une première des parois latérales,an intermediate zone situated between the two zones intended to form the side walls, the intermediate zone being intended to form a flap folded along the point against a first of the side walls,
• des moyens de guidage de déchirures dans la feuille, les moyens de guidage s'étendant sensiblement le long de bords latéraux de la zone destinée à former le fond, les moyens de guidage formant une languette unique de traction pour provoquer des déchirures, la languette de traction traversant la zone intermédiaire et faisant saillie au-delà de la feuille.A means for guiding tears in the sheet, the guiding means extending substantially along lateral edges of the zone intended to form the bottom, the guiding means forming a single pull tab for causing tears, the tongue traction passing through the intermediate zone and projecting beyond the sheet.
L'invention s'applique en particulier au conditionnement de fromage fondu. Dans tout ce qui suit, on entend par emballages à fonds sensiblement triangulaires les emballages dont les fonds sont effectivement triangulaires avec des côtés rectiiignes, mais également ceux dont les fonds présentent un côté courbe et possèdent donc une forme en secteur de disque.The invention applies in particular to the packaging of processed cheese. In all that follows, packaging with substantially triangular bottoms means the containers whose funds are actually triangular with rectiiignes sides, but also those whose funds have a curved side and therefore have a disc sector shape.
FR-2 597 441 décrit un élément du type précité pour conditionner une portion de fromage fondu. Dans cet élément, la languette de traction s'étend dans la zone intermédiaire le long de l'axe médian de la zone destinée à former le fond de l'emballage. Bien que l'ouverture de l'emballage décrit dans ce document soit globalement satisfaisante, l'initiation et la propagation des déchirures nécessitent une traction selon deux directions différentes.FR-2,597,441 describes an element of the aforementioned type for conditioning a portion of processed cheese. In this element, the traction tongue extends in the intermediate zone along the central axis of the zone intended to form the bottom of the package. Although the opening of the package described in this document is generally satisfactory, the initiation and propagation of the tears require traction in two different directions.
En effet, dans un premier temps, la traction de la languette s'effectue vers la pointe et la deuxième paroi latérale de l'emballage, afin de déplier le volet dans lequel la languette de traction est située. Une fois ce volet déplié, la traction est effectuée dans un deuxième temps vers le fond de l'emballage et le talon, afin d'initier et de propager les déchirures.Indeed, initially, the pulling of the tongue is made towards the tip and the second side wall of the package, in order to unfold the flap in which the pull tab is located. Once this flap unfolded, the traction is performed in a second time to the bottom of the package and the heel, to initiate and spread the tears.
Un tel geste est perçu comme complexe et difficile à mettre en œu- vre par certains consommateurs.Such a gesture is perceived as complex and difficult to implement by some consumers.
Un but du premier aspect de l'invention est donc de résoudre ce problème en fournissant un élément du type précité qui permette de faciliter l'ouverture d'un emballage de conditionnement de produit alimentaire.An object of the first aspect of the invention is therefore to solve this problem by providing an element of the aforementioned type which makes it possible to facilitate the opening of a food product packaging package.
A cet effet, le premier aspect de l'invention a pour objet un élément selon la revendication 1.For this purpose, the first aspect of the invention relates to an element according to claim 1.
Selon des modes particuliers de réalisation, l'élément peut comprendre l'une ou plusieurs des caractéristiques selon les revendications 2 à 6.According to particular embodiments, the element may comprise one or more of the features according to claims 2 to 6.
Le premier aspect de l'invention a également pour objet un emballage de conditionnement d'un produit alimentaire selon la revendication 7. Selon des variantes, l'emballage peut présenter les caractéristiques des revendications 8 et/ou 9.The first aspect of the invention also relates to a packaging for packaging a food product according to claim 7. According to variants, the packaging may have the features of claims 8 and / or 9.
Le premier aspect de l'invention a en outre pour objet un ensemble selon la revendication 11.The first aspect of the invention further relates to an assembly according to claim 11.
Selon une variante, le produit alimentaire est du fromage fondu. La présente invention concerne, selon un second aspect, un dispositif de découpe, à partir d'au moins un film, de bandes, le dispositif comprenant au moins deux lames présentant des fils de coupe destinés à se faire face, les lames étant mobiles l'une par rapport à l'autre le long d'une direction orthogonale au film afin de propager une découpe dans le film le long des fils de coupe. L'invention s'applique en particulier à la réalisation de bandes de guidage de déchirures pour des emballages de conditionnement de fromage fondu. Le document FR-2 362 765 décrit un dispositif de découpe du type précité. Ce type de dispositif de découpe s'avère satisfaisant pour découper des bandes à partir de films d'épaisseurs supérieures à 36μm.According to one variant, the food product is processed cheese. The present invention relates, according to a second aspect, to a device for cutting, from at least one film, strips, the device comprising at least two blades having cutting son intended to face each other, the blades being movable. relative to each other along a direction orthogonal to the film to propagate a cut in the film along the cutting wires. The invention is particularly applicable to the production of tear guide strips for processed cheese packaging packages. The document FR-2 362 765 describes a cutting device of the aforementioned type. This type of cutting device is satisfactory for cutting strips from films with thicknesses greater than 36 .mu.m.
Il serait souhaitable de pouvoir disposer de bandes de guidage de déchirures d'épaisseur plus faible afin de pouvoir réduire les coûts de ces bandes. Toutefois, les dispositifs de découpe du type précité s'avèrent incapables de découper des bandes à partir de films aussi fins, sans froisser les bandes obtenues.It would be desirable to have lower thickness tear strips in order to reduce the costs of these strips. However, the cutting devices of the aforementioned type are unable to cut strips from thin films, without creasing the strips obtained.
Un but du second aspect de l'invention est donc de résoudre ce problème en fournissant un dispositif de découpe qui permette de découper des bandes à partir de films plus fins.It is therefore an object of the second aspect of the invention to solve this problem by providing a cutting device which allows cutting of strips from thinner films.
A cet effet, le second aspect de l'invention a pour objet une installation de découpe selon la revendication 12.For this purpose, the second aspect of the invention relates to a cutting installation according to claim 12.
Selon des modes particuliers de réalisation, l'installation peut com- prendre une ou plusieurs des caractéristiques des revendications 13 à 21.According to particular embodiments, the installation may comprise one or more of the features of claims 13 to 21.
Le second aspect de l'invention a également pour objet un procédé de découpe selon la revendication 22.The second aspect of the invention also relates to a cutting method according to claim 22.
Selon des modes particuliers de réalisation, le procédé peut comprendre une ou plusieurs des caractéristiques des revendications 23 à 26. Le second aspect de l'invention a en outre pour objet un emballage selon la revendication 27.According to particular embodiments, the method may comprise one or more of the features of claims 23 to 26. The second aspect of the invention further relates to a package according to claim 27.
Selon une variante la bande de guidage a une épaisseur strictement inférieure à 36 μm.According to one variant, the guide strip has a thickness strictly less than 36 μm.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels :The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the appended drawings, in which:
- la figure 1 est une vue schématique en plan d'un élément d'emballage pour conditionner du fromage fondu,FIG. 1 is a schematic plan view of a packaging element for packaging processed cheese,
- la figure 2 est une vue schématique en perspective illustrant une étape de la réalisation de l'emballage à partir de l'élément de la figure 1 ,FIG. 2 is a diagrammatic perspective view illustrating a step of producing the packaging from the element of FIG. 1;
- la figure 3 est une vue schématique en perspective de l'emballage achevé, - la figure 4 est une vue schématique en perspective illustrant le début de l'ouverture de l'emballage de la figure 3, etFIG. 3 is a schematic perspective view of the completed package, FIG. 4 is a schematic perspective view illustrating the beginning of the opening of the package of FIG. 3, and
- la figure 5 est une vue schématique en perspective illustrant une installation de découpe et de scellage d'organes de guidage des déchirures, - la figure 6 est une vue de dessus illustrant une des lames de l'installation de la figure 5, etFIG. 5 is a diagrammatic perspective view illustrating a cutting and sealing device for tear-guiding members; FIG. 6 is a view from above showing one of the blades of the installation of FIG. 5, and
- la figure 7 est une vue schématique en perspective illustrant une variante de l'installation de la figure 5.FIG. 7 is a schematic perspective view illustrating a variant of the installation of FIG. 5.
La feuille 1 représentée sur la figure 1 est une feuille destinée au conditionnement d'une portion de fromage fondu à base en secteur de disque. La feuille 1 est par exemple réalisée en aluminium recouvert de laque thermos- cellante.The sheet 1 shown in FIG. 1 is a sheet intended for packaging a portion of processed cheese with a disk sector base. The sheet 1 is for example made of aluminum coated with thermosealing lacquer.
Pour former un emballage, et comme représenté sur la figure 2, la feuille 1 est conformée en un godet 2 par pliage, suivant les lignes représentées en pointillés sur la figure 1.To form a package, and as shown in FIG. 2, the sheet 1 is shaped into a cup 2 by folding, according to the lines shown in dashed lines in FIG.
La feuille 1 comprend des zones destinées à former les différentes parties du godet 2. Ces différentes parties vont être décrites par la suite. Les mêmes références seront généralement utilisées pour désigner les parties du godet 2 et les zones correspondantes de la feuille 1. Le godet 2 comprend un fond 3 en forme de secteur de disque délimité par deux bords latéraux 5 et 7 et un bord en arc de cercle 8. Perpendiculairement au plan du fond 3, le godet 2 comprend :The sheet 1 comprises areas intended to form the different parts of the bucket 2. These different parts will be described later. The same references will generally be used to designate the portions of the bucket 2 and the corresponding zones of the sheet 1. The bucket 2 comprises a bottom 3 in the form of a sector of disk delimited by two lateral edges 5 and 7 and an arcuate edge. 8. Perpendicular to the bottom plane 3, the bucket 2 comprises:
- une première paroi latérale 9 et une seconde paroi latérale 11 , qui s'étendent le long des bords rectilignes 5 et 7, et - une paroi courbe formant talon 13 qui s'étend le long du bord en arc de cercle 8.a first lateral wall 9 and a second lateral wall 11, which extend along the rectilinear edges 5 and 7, and a curved heel-forming wall 13 which extends along the arcuate edge 8.
Les parois latérales 9 et 11 se rejoignent le long d'une pointe 15 opposée au talon 13.The side walls 9 and 11 meet along a point 15 opposite to the heel 13.
Les parois latérales 9 et 11 et le talon 13 sont prolongés par des rabats, respectivement 17, 19 et 21 , destinés à être rabattus suivant des lignes de pliages 23, 25 et 27, lors de la fermeture de l'emballage. La feuille 1 avant pliage comporte en outre des zones intermédiaires 29, 31 et 33 disposées respectivement entre les parois 9 et 11 et leurs rabats 17 et 19, entre la paroi 9 et le talon 13 et leurs rabats 17 et 21 , et entre le talon 13 et la paroi 11 et leurs rabats 21 et 19. Les bords latéraux 35 et 37 du talon 13 et du rabat 21 prolongent les bords latéraux 5 et 7 du fond 3.The side walls 9 and 11 and the heel 13 are extended by flaps, respectively 17, 19 and 21, intended to be folded along fold lines 23, 25 and 27, when closing the package. The sheet 1 before folding further comprises intermediate zones 29, 31 and 33 disposed respectively between the walls 9 and 11 and their flaps 17 and 19, between the wall 9 and the heel 13 and their flaps 17 and 21, and between the heel 13 and the wall 11 and their flaps 21 and 19. The side edges 35 and 37 of the heel 13 and the flap 21 extend the side edges 5 and 7 of the bottom 3.
La feuille 1 est également munie, du côté destiné à former la face interne du godet 2, de deux bandes 51a et 51b de guidage de déchirures. La feuille 1 et les bandes 51a et 51b forment ainsi un élément d'emballage.The sheet 1 is also provided, on the side intended to form the inner face of the cup 2, two strips 51a and 51b tear guide. The sheet 1 and the strips 51a and 51b thus form a packaging element.
Les deux bandes 51a et 51b sont, par exemple, réalisées en poly- éthylène (PET) et ont une épaisseur strictement inférieure à 36 μm, par exemple de 23 μm ou de 18 μm. Les bandes 51a et 51b ont été thermosoudées à la fois entre elles et sur la feuille 1.The two strips 51a and 51b are, for example, made of polyethylene (PET) and have a thickness strictly less than 36 microns, for example 23 microns or 18 microns. The strips 51a and 51b were heat sealed together and on the sheet 1.
Comme illustré par la figure 1 , la première bande 51 a comprend un tronçon principal 52a qui s'étend sensiblement parallèlement et le long du bord 5 longeant le fond 3.As illustrated in FIG. 1, the first band 51a comprises a main section 52a which extends substantially parallel and along the edge 5 along the bottom 3.
Le tronçon principal 52a est prolongé, dans le talon 13, par une première extrémité 53a qui est inclinée dès la naissance du talon par rapport au bord 35 vers l'axe médian A du fond 3. Cette inclinaison est par exemple de 10°.The main section 52a is extended, in the heel 13, by a first end 53a which is inclined at the birth of the heel with respect to the edge 35 towards the central axis A of the bottom 3. This inclination is for example 10 °.
De l'autre côté, le tronçon 52a est prolongé par une seconde ex- trémité 55a qui, dans l'exemple représenté est inclinée d'un angle α par rapport à l'axe A. L'angle α vaut, par exemple, entre 15° et 25°.On the other side, the section 52a is extended by a second end 55a which, in the example shown, is inclined at an angle α with respect to the axis A. The angle α is, for example, between 15 ° and 25 °.
Cette seconde extrémité 55b traverse légèrement la seconde paroi latérale 11 , puis traverse la zone intermédiaire 29 et fait enfin saillie depuis cette dernière sur une longueur I mesurée le long de l'axe médian A du fond 3. La seconde bande 51 b possède, au voisinage du talon 13, une forme symétrique de celle de la première bande 51a par rapport à l'axe médian A.This second end 55b passes slightly through the second lateral wall 11, then crosses the intermediate zone 29 and finally protrudes from the latter along a length I measured along the median axis A of the bottom 3. The second band 51b has, at the around the heel 13, a shape symmetrical to that of the first band 51a with respect to the central axis A.
Toutefois, le tronçon principal 52b de la bande 51b présente une brisure 54b au-delà de laquelle le tronçon principal 52b n'est plus sensiblement parallèle au bord 7 mais au contraire le coupe, de sorte que la seconde extrémitéHowever, the main section 52b of the band 51b has a break 54b beyond which the main section 52b is no longer substantially parallel to the edge 7 but on the contrary the section, so that the second end
55b de la bande 51b se situe du même côté de l'axe médian A que l'extrémité55b of the band 51b is on the same side of the median axis A as the end
55a de la bande 51a. Les tronçons principaux 52a et 52b se rejoignent en un point d'intersection 57 situé, par exemple, dans la zone intermédiaire 29. Ce point d'intersection 57 est espacé latéralement de l'axe médian A.55a of the band 51a. The main sections 52a and 52b meet at a point of intersection 57 located, for example, in the intermediate zone 29. This point of intersection 57 is spaced laterally from the median axis A.
Au-delà du point d'intersection 57, les extrémités 55a et 55b des bandes 51a et 51b sont superposées, l'extrémité 55b étant disposée sous l'extrémité 55a et ayant la même forme que l'extrémité 55a.Beyond the point of intersection 57, the ends 55a and 55b of the strips 51a and 51b are superimposed, the end 55b being disposed under the end 55a and having the same shape as the end 55a.
Les extrémités 55a et 55b sont thermoscellées l'une à l'autre et thermoscellées sur la feuille 1. Ces deux extrémités 55a et 55b forment donc une languette unique de traction 58 qui est espacée latéralement de l'axe médian A et qui fait saillie de la longueur I de la zone intermédiaire 29.The ends 55a and 55b are heat-sealed to one another and heat-sealed on the sheet 1. These two ends 55a and 55b thus form a single pull tab 58 which is spaced laterally from the central axis A and protrudes from the length I of the intermediate zone 29.
Dans l'exemple représenté, cette languette 58 est rectiligne et inclinée de l'angle α par rapport à l'axe médian A.In the example shown, this tongue 58 is rectilinear and inclined at the angle α with respect to the median axis A.
Pour obtenir le godet 2 de la figure 2 à partir de la feuille 1, les zones intermédiaires 31 et 33 reliant les parois latérales 9 et 11 et le talon 13 sont pliées à partir du fond 3 en leur milieu le long des lignes 59 et 61 , visibles sur la figure 1. Les volets triangulaires 63 et 65 ainsi formés sont repliés respectivement sur les parois latérales 9 et 11 le long des bords latéraux 35 et 37 du talon 13. Quant à la zone intermédiaire 29 supportant les extrémités 55a et 55b, elle est également pliée en son milieu le long d'une ligne de pliage 67 (figure 1) et le volet triangulaire ainsi formé 69 (figure 2) est replié le long de la pointe 15 sur la première paroi latérale 9.To obtain the bucket 2 of Figure 2 from the sheet 1, the intermediate zones 31 and 33 connecting the side walls 9 and 11 and the heel 13 are folded from the bottom 3 in their middle along the lines 59 and 61 , visible in Figure 1. The triangular flaps 63 and 65 thus formed are folded respectively on the side walls 9 and 11 along the side edges 35 and 37 of the heel 13. As for the intermediate zone 29 supporting the ends 55a and 55b, it is also folded in its middle along a fold line 67 (FIG. 1) and the triangular flap thus formed 69 (FIG. 2) is folded along the point 15 on the first lateral wall 9.
La languette de traction 58 fait saillie vers le haut au-delà de la ligne de pliage 23 et donc au-delà de la première paroi latérale 9.The pull tongue 58 protrudes upwardly beyond the fold line 23 and thus beyond the first side wall 9.
Dans le godet 2 ainsi obtenu est coulée à chaud une quantité dé- terminée de fromage fondu sur une hauteur égale à la hauteur des parois latérales 9 et 11 et du talon 13, afin de constituer une portion 70 visible sur la figure 2.In the cup 2 thus obtained, a quantity of melted cheese is hot-cast at a height equal to the height of the side walls 9 and 11 and of the heel 13 so as to constitute a portion 70 visible in FIG.
Une seconde feuille 71 , de dimensions correspondant à celles du fond 3, est déposée sur la portion 70. Cette seconde feuille 71 est, par exemple, réalisée également en aluminium recouvert de laque thermoscellante. Ensuite, et comme illustré par la figure 3, les rabats 17, 19 et 21 sont rabattus et scellés sur la seconde feuille 71 pour former un couvercle 72 opposé au fond 3. Comme illustré par la figure 3, la languette 58 peut être rabattue sur le couvercle 72, par exemple lors du scellage du couvercle 72. La languette 58 forme ainsi un pli au droit du pli 23 reliant la première paroi latérale 9 au rabat 17, sans pour autant être plaquée ou collée sur le rabat 17. La languette 58 n'étant pas scellée sur le couvercle 72, et est donc plus facilement saisissable par un consommateur, même s'il a des ongles courts.A second sheet 71, of dimensions corresponding to those of the bottom 3, is deposited on the portion 70. This second sheet 71 is, for example, also made of aluminum covered with heat-sealing lacquer. Then, and as shown in FIG. 3, the flaps 17, 19 and 21 are folded down and sealed on the second sheet 71 to form a cover 72 opposite the bottom 3. As illustrated in FIG. 3, the tongue 58 can be folded over the cover 72, for example during the sealing of the cover 72. The tongue 58 thus forms a fold at right of the fold 23 connecting the first lateral wall 9 to the flap 17, without however, be plated or glued to the flap 17. The tongue 58 is not sealed on the cover 72, and is therefore more easily grasped by a consumer, even if he has short nails.
Si la languette 58 est rabattue lors du scellage, le chauffage de la languette 58, et notamment de son pli, lui permet de conserver cette forme après fabrication. On obtient ainsi un ensemble 73 comprenant un emballage 75, formé des feuilles 1 et 71 , et la portion de fromage fondu 70 conditionnée dans l'emballage 75.If the tongue 58 is folded during sealing, the heating of the tongue 58, including its fold, allows it to retain this shape after manufacture. An assembly 73 is thus obtained comprising a package 75, formed of sheets 1 and 71, and the portion of processed cheese 70 packaged in package 75.
En variante, la languette 58 peut être rabattue sur le couvercle 72 non pas lors du scellage de ce dernier, mais lors de la mise en boîte de l'ensemble 73.Alternatively, the tongue 58 can be folded on the lid 72 not during the sealing of the latter, but when the assembly of the assembly 73.
L'ouverture de l'emballage 75 est réalisée comme illustré par la figure 4.The opening of the packaging 75 is carried out as illustrated in FIG. 4.
Le consommateur saisit la languette 58, qui n'est pas scellée sur le rabat 17, puis exerce sur celle-ci un mouvement de traction dirigé vers le fond 3 et le talon 13, comme matérialisé par la flèche 77 sur la figure 4. La languette 58 amorce des déchirures sensiblement le long de la pointe 15, plutôt que déplier le volet 69 comme dans l'état de la technique.The consumer grasps the tab 58, which is not sealed on the flap 17, then exerts on it a traction movement directed towards the bottom 3 and the heel 13, as shown by the arrow 77 in FIG. tongue 58 initiates tear substantially along the tip 15, rather than unfolding the flap 69 as in the state of the art.
Ensuite, la traction se poursuit selon la même direction matérialisée par la flèche 17. Les déchirures provoquées sensiblement le long de la pointe 15 sont propagées et guidées le long des bords 5 et 7 du fond 3. Le reste de l'ouverture de l'emballage 75 est alors assuré de manière classique et n'est donc pas représenté sur les figures.Then, the traction continues in the same direction shown by the arrow 17. The tears caused substantially along the tip 15 are propagated and guided along the edges 5 and 7 of the bottom 3. The remainder of the opening of the packaging 75 is then provided in a conventional manner and is not shown in the figures.
Du fait que la languette de traction 58 est espacée de l'axe médian A dans la feuille 1 , l'amorce et la propagation des déchirures n'implique pas de changement important dans la direction de traction comme dans FR-2 597441. L'ouverture est donc rationnelle et susceptible d'être mise en oeuvre par pratiquement tous les consommateurs. Du fait de l'existence d'une languette de traction unique 58 dans la feuille 1 , et non de deux languettes 58 disposées de part et d'autre de l'axe commun et destinées à se superposer lors du pliage de la feuille 1 , les risques de mal saisir la languette de traction sont réduits. En outre, la languette 58 étant rabattue sur le couvercle 72 dans l'emballage 75, celle-ci est trouvée et peut être saisie facilement par les consommateurs. La languette 58 a pu être rabattue sur le couvercle 72 puisqu'elle fait saillie au-delà de la première paroi latérale 9 dans l'emballage 75.Because the pull tab 58 is spaced from the center axis A in the sheet 1, the primer and the propagation of the tears do not involve a significant change in the direction of pulling as in FR-2 597441. The openness is therefore rational and likely to be implemented by virtually all consumers. Due to the existence of a single pull tab 58 in the sheet 1, and not two tabs 58 disposed on either side of the common axis and intended to be superposed during the folding of the sheet 1, the risks of mishandling the pull tab are reduced. In addition, the tongue 58 being folded on the cover 72 in the package 75, it is found and can be easily grasped by consumers. The tongue 58 could be folded on the cover 72 since it protrudes beyond the first side wall 9 in the package 75.
En variante, la languette 58 peut ne pas être rabattue ou même ne pas faire saillie au-delà de la paroi latérale 9. La languette 58 est alors disposée le long de la première paroi 9 comme dans l'état de la technique.Alternatively, the tongue 58 may not be folded or even protrude beyond the side wall 9. The tongue 58 is then disposed along the first wall 9 as in the state of the art.
En variante, la languette 58 peut être formée par une seule des bandes 51a et 51b.Alternatively, the tongue 58 may be formed by only one of the strips 51a and 51b.
Ainsi, la seconde bande 51b peut ne pas présenter, au-delà du point d'intersection 57, d'extrémité 55b superposée à l'extrémité 55a. Dans encore une autre variante, l'extrémité 55b peut ne pas s'étendre sur la même longueur que l'extrémité 55a.Thus, the second band 51b may not have, beyond the point of intersection 57, end 55b superimposed on the end 55a. In yet another variant, the end 55b may not extend on the same length as the end 55a.
Dans d'autres variantes encore, la languette de traction 58 peut avoir d'autres formes que celles représentées sur les figures 1 à 4, et par exem- pie ne pas être rectiligne.In still other embodiments, the pull tab 58 may have other shapes than those shown in FIGS. 1 to 4, and for example not be rectilinear.
De même, en variante, le point d'intersection 57 peut être situé dans la seconde paroi 11 , ou dans le fond 3 à proximité de l'intersection entre les bords 5 et 7.Similarly, alternatively, the intersection point 57 may be located in the second wall 11, or in the bottom 3 near the intersection between the edges 5 and 7.
Il est également possible, par exemple, que la bande 51b ne pré- sente pas de brisure 54b dans son tronçon principal, comme illustré sur la figure 5.It is also possible, for example, that the band 51b does not exhibit breakage 54b in its main section, as illustrated in FIG.
De plus, les bandes 51a et 51b peuvent être remplacées par des moyens de guidage d'autres natures.In addition, the strips 51a and 51b can be replaced by guide means of other kinds.
Ainsi, il peut s'agir d'affaiblissements locaux de la première feuille 1 , obtenus par exemple grâce à une molette ou un faisceau laser. Avantageusement, les bandes de guidage 51a et 51b décrites précédemment ont été obtenues grâce à une installation de découpe d'au moins un film telle que décrite par la suite.Thus, it may be local weakenings of the first sheet 1, obtained for example by means of a wheel or a laser beam. Advantageously, the guide strips 51a and 51b described above were obtained by means of a cutting installation of at least one film as described below.
La figure 5 illustre une installation 80 de découpe et de scellage de bandes de guidage 51a et 51b sur des feuilles 1 préalablement découpées. L'installation 80 comprend :Figure 5 illustrates an installation 80 for cutting and sealing guide strips 51a and 51b on sheets 1 previously cut. The installation 80 includes:
- un bâti 81 dont seules des parties ont été représentées sur la figure 5,a frame 81 of which only parts have been represented in FIG. 5,
- des moyens 82 d'alimentation en feuilles 1 , ces feuilles 1 pouvant être découpées ou non au sein de l'installation 80,means 82 for supplying sheets 1, these sheets 1 being able to be cut out or not in the installation 80,
- des moyens 83a et 83b d'alimentation en films 84a et 84b du matériau constituant les bandes 51a et 51 b, ces moyens permettant par exemple de dévider deux rouleaux 86a et 86b des films 84a et 84b, etmeans 83a and 83b for supplying films 84a and 84b of the material constituting the strips 51a and 51b, these means making it possible, for example, to unwind two rollers 86a and 86b of the films 84a and 84b, and
- un dispositif 88 de découpe des films 84a et 84b. Les moyens 83a et 83b d'alimentation sont par exemple de type classique et peuvent ainsi comprendre des rouleaux de traction, comme illustré dans le document FR-2 362 765.a device 88 for cutting the films 84a and 84b. The feed means 83a and 83b are for example of conventional type and may thus comprise traction rollers, as shown in the document FR-2 362 765.
Ils assurent le déplacement des films 84a et 84b vers la lame 92 sensiblement horizontalement. De même, les moyens 82 d'alimentation peuvent avoir une structure classique.They move the films 84a and 84b towards the blade 92 substantially horizontally. Similarly, the supply means 82 may have a conventional structure.
Le dispositif de découpe 88 comprend deux lames inférieures 90a et 90b et une lame supérieure 92.The cutting device 88 comprises two lower blades 90a and 90b and an upper blade 92.
Comme illustré par la figure 6, la lame supérieure 92 a, dans l'exemple représenté, une forme sensiblement triangulaire prolongée au niveau de sa pointe par une queue 93. Ses flancs latéraux 94a et 94b orientés respectivement vers les rouleaux 86a et 86b présentent par exemple des dépouilles d'environ 1 ,5° par rapport à la verticale. Les bords inférieurs 96a et 96b des flancs 94a et 94b forment des fils de coupe dont les profils correspondent res- pectivement aux formes des bandes de guidage 51a et 51b à découper.As illustrated in FIG. 6, the upper blade 92 has, in the example shown, a substantially triangular shape extended at its tip by a shank 93. Its lateral flanks 94a and 94b respectively oriented towards the rollers 86a and 86b present by example of the remains of about 1, 5 ° relative to the vertical. The lower edges 96a and 96b of the flanks 94a and 94b form cutting threads whose profiles respectively correspond to the shapes of the guide strips 51a and 51b to be cut.
L'installation 80 comprend des moyens 98 de déplacement de la lame supérieure 92 par rapport au bâti 81 entre une position haute, que la lame 92 occupe avant le découpage et qui est illustrée sur la figure 5, et une position basse, que la lame 92 occupe après découpage des bandes 51a et 51b.The installation 80 comprises means 98 for moving the upper blade 92 relative to the frame 81 between a high position, that the blade 92 occupies before cutting and which is illustrated in Figure 5, and a low position, the blade 92 occupies after cutting strips 51a and 51b.
Dans la position haute de la lame 92, les fils de coupe 96a et 96b sont situés respectivement au dessus des films 84a et 84b. Les fils de coupe 96a et 96b sont sensiblement horizontaux et le déplacement de la lame 92 entre ses positions haute et basse s'effectue sensiblement verticalement, c'est-à-dire sensiblement orthogonalement au plan des films 84a et 84b lorsqu'ils sont au voisinage de la lame supérieure 92.In the high position of the blade 92, the cutting wires 96a and 96b are situated respectively above the films 84a and 84b. The cutting wires 96a and 96b are substantially horizontal and the displacement of the blade 92 between its high and low positions is substantially vertical, that is to say substantially orthogonal to the plane of the films 84a and 84b when they are at vicinity of the upper blade 92.
Comme on le voit sur la figure 6, la lame 92 est percée au voisinage de ses flancs latéraux 94a et 94b d'orifices 100a et 100b d'aspiration des bandes 51a et 51b découpées. Ces orifices sont raccordés à une source de vide non- représentée.As seen in Figure 6, the blade 92 is pierced in the vicinity of its side flanks 94a and 94b of orifices 100a and 100b suction strips 51a and 51b cut. These orifices are connected to a non-represented vacuum source.
Les lames inférieures 90a et 90b sont disposées respectivement sous les films 84a et 84b, de part et d'autre de la lame supérieure 92. Leurs flancs 102a et 102b, qui se font face, possèdent des bords supérieurs 104a etThe lower blades 90a and 90b are respectively disposed under the films 84a and 84b, on either side of the upper blade 92. Their flanks 102a and 102b, which face each other, have upper edges 104a and 104b.
104b qui forment des fils de coupe de formes conjuguées de celles des fils 96a et 96b.104b which form cutting son conjugate forms of those son 96a and 96b.
Les fils de coupe 104a et 104b sont disposés dans un même plan qui est légèrement incliné par rapport à l'horizontal par exemple de 5°. Les lames inférieures 90a et 90b sont mobiles sur le bâti 81 sensiblement parallèlement au plan des films 84a et 84b lorsqu'ils sont au voisinage de la lame supérieure 92.The cutting son 104a and 104b are arranged in the same plane which is slightly inclined relative to the horizontal for example 5 °. The lower blades 90a and 90b are movable on the frame 81 substantially parallel to the plane of the films 84a and 84b when they are in the vicinity of the upper blade 92.
Dans l'exemple représenté, les lames inférieures 90a et 90b sont articulées sur le bâti 81 grâce à des pivots 106a et 106b. Les lames 90a et 90b sont ainsi mobiles entre une position rapprochée et une position écartée l'une de l'autre, la course de ce déplacement étant faible, par exemple de l'ordre de 0,5 mm.In the example shown, the lower blades 90a and 90b are articulated on the frame 81 by pivots 106a and 106b. The blades 90a and 90b are thus movable between a close position and a position spaced apart from each other, the stroke of this displacement being small, for example of the order of 0.5 mm.
Le dispositif de coupe 88 comprend des moyens 108a et 108b de rappel élastique des lames 90a et 90b dans leur position rapprochée. Dans l'exemple représenté, il s'agit de ressorts disposés latéralement à l'extérieur des lames 90a et 90b, entre celles-ci et les parties du bâti 81. Dans d'autres variantes, ces ressorts 108a et 108b peuvent être par exemple remplacés par un ressort unique 108 reliant les lames 90a et 90b entre elles.The cutting device 88 comprises means 108a and 108b for elastic return of the blades 90a and 90b in their close position. In the example shown, these springs are arranged laterally outside the blades 90a and 90b, between these and the parts of the frame 81. In other variants, these springs 108a and 108b may for example be replaced by a single spring 108 connecting the blades 90a and 90b together.
De préférence, ces moyens de rappel élastique sont réglables. Dans sa position haute aussi bien que dans sa position basse, la lame supérieure 92 est intercalée latéralement entre les lames inférieures 90a et 90b.Preferably, these elastic return means are adjustable. In its high position as well as in its low position, the upper blade 92 is inserted laterally between the lower blades 90a and 90b.
Les moyens de rappel 108a et 108b plaquent alors latéralement les lames 90a et 90b contre la lame 92. Ainsi, les fils de coupe 104a et 104b sont plaqués contre les fils de coupe 96a et 96b sensiblement parallèlement au plan des films 84a et 84b au voisinage de la lame 92 en des points de contact 110a etThe return means 108a and 108b then laterally plate the blades 90a and 90b against the blade 92. Thus, the cutting wires 104a and 104b are pressed against the cutting wires 96a and 96b substantially parallel to the plane of the films 84a and 84b in the vicinity. of the blade 92 at points of contact 110a and
110b (figure 5).110b (Figure 5).
En outre, l'installation 88 comprend une unité électronique de pilotage 112 pour commander automatiquement, notamment via les moyens 82, 83a, 83b et 98, l'exécution du cycle de découpe décrit par la suite.In addition, the installation 88 comprises an electronic control unit 112 for controlling automatically, in particular via the means 82, 83a, 83b and 98, the execution of the cutting cycle described hereinafter.
La lame supérieure 92 est initialement en position haute, les points de contact 110a et 110b sont éloignés de la queue 93 de la lame supérieure 92. Les lames inférieures 90a et 90b sont alors en position rapprochée.The upper blade 92 is initially in the high position, the contact points 110a and 110b are remote from the tail 93 of the upper blade 92. The lower blades 90a and 90b are then in the close position.
Avant que l'opération de découpe proprement dite ne débute, les moyens 82 d'alimentation ont placé une feuille 1 sous le dispositif 88 de découpe et les moyens 83a et 83b d'alimentation ont fait avancer légèrement les films 84a et 84b pour qu'une largeur correspondant à celle des bandes 51a et 51b dépasse depuis les fils de coupe 104a et 104b latéralement vers la lame supérieure 92. La lame supérieure 92 est alors abaissée et les points de contactBefore the actual cutting operation began, the feeding means 82 placed a sheet 1 under the cutting device 88 and the feeding means 83a and 83b slightly advanced the films 84a and 84b so that a width corresponding to that of the strips 51a and 51b protrudes from the cutting wires 104a and 104b laterally to the upper blade 92. The upper blade 92 is then lowered and the contact points
110a et 110b se déplacent progressivement vers la queue 93 de la lame supérieure 92.110a and 110b move progressively towards the tail 93 of the upper blade 92.
Le déplacement des points de contact 110a et 110b provoque la découpe progressive des bandes 51a et 51b qui sont maintenues par aspiration, au fur et à mesure de leur découpe, sous la lame supérieure 92 grâce aux orifices d'aspiration 100a et 100b. Au cours de ce déplacement des points de contact 110a et 110b, l'insertion de la lame 92 entre les lames inférieures 90a et 90b provoque leur déplacement vers leur position écartée.The displacement of the contact points 110a and 110b causes the gradual cutting of the strips 51a and 51b which are maintained by suction, as and when they are cut, under the upper blade 92 through the suction ports 100a and 100b. During this movement of the contact points 110a and 110b, the insertion of the blade 92 between the lower blades 90a and 90b causes their displacement towards their spaced position.
Grâce aux moyens 108a et 108b de rappel, les lames 90a, 90b et 92 sont maintenues plaquées l'une contre l'autre au niveau des points de contact 110a et 110b sensiblement perpendiculairement aux directions générales de propagation des découpes dans les films 84a et 84b, produisant ainsi un effet ciseau. Les efforts de maintien correspondants ont été matérialisés par les flèches 114a et 114b sur la figure 5 et les directions générales de propagation des découpes ont été matérialisée par les flèches 116a et 116b.Thanks to the means 108a and 108b of return, the blades 90a, 90b and 92 are held pressed against each other at the contact points 110a and 110b substantially perpendicular to the general directions of propagation of the cuts in the films 84a and 84b , thus producing a chisel effect. The corresponding holding forces were materialized by the arrows 114a and 114b in FIG. 5 and the general directions of propagation of the blanks were materialized by the arrows 116a and 116b.
A l'issue de la découpe, la lame supérieure 92 poursuit sa course jusqu'à sa position basse dans laquelle elle vient appliquer les bandes 51a et 51b découpées contre la feuille 1.At the end of the cutting, the upper blade 92 continues its stroke to its lower position in which it comes to apply the strips 51a and 51b cut against the sheet 1.
Des moyens de chauffage disposés dans le bâti 81 sous la feuille 1 permettent alors d'assurer le thermoscellage des bandes 51a et 51b entre elles et sur la feuille 1.Heating means arranged in the frame 81 under the sheet 1 then make it possible to heat-seal the strips 51a and 51b between them and on the sheet 1.
Ensuite, la lame supérieure 92 remonte jusqu'à sa position haute, une nouvelle feuille 1 est placée sous le dispositif 88 et les films 84a et 84b sont avancés chacun d'un pas correspondant à la largeur des bandes 51a et 51b. Le cycle de découpe et de scellage est alors répété automatiquement sous l'action de l'unité 112.Then, the upper blade 92 rises to its upper position, a new sheet 1 is placed under the device 88 and the films 84a and 84b are each advanced a step corresponding to the width of the bands 51a and 51b. The cutting and sealing cycle is then automatically repeated under the action of the unit 112.
Grâce à l'effet ciseau décrit ci-dessus, on a pu constater que les bandes de guidage 51a et 51b ne sont pas froissées lors de la découpe. Cela reste vrai même si les films 84a et 84b ont des épaisseurs extrêmement faibles, par exemple de l'ordre de 23 μm ou de 18 μm.With the chisel effect described above, it has been found that the guide strips 51a and 51b are not wrinkled during cutting. This remains true even if the films 84a and 84b have extremely low thicknesses, for example of the order of 23 μm or 18 μm.
Ainsi, l'installation 80 de la figure 5 permet de produire des bandes 51a et 51b d'épaisseur faible, ce qui facilite le pliage de la languette de traction 58 sur le couvercle 72 dans l'emballage 75 de la figure 3.Thus, the installation 80 of FIG. 5 makes it possible to produce strips 51a and 51b of small thickness, which facilitates the folding of the pull tab 58 on the cover 72 in the package 75 of FIG. 3.
Plus généralement, et indépendamment du type d'emballage dans lequel les bandes découpées sont utilisées, l'installation 80 permet d'utiliser des films 84a et 84b d'épaisseur plus faibles, ce qui réduit de manière significative les coûts liés à la réalisation des bandes de guidage des déchirures. On peut donc utiliser une installation mettant en œuvre l'effet ciseau décrit ci-dessus pour produire des bandes de guidage de formes variées.More generally, and regardless of the type of packaging in which the cut strips are used, the installation 80 makes it possible to use films 84a and 84b of smaller thickness, which significantly reduces the costs related to the production of the films. tears guide strips. It is therefore possible to use an installation implementing the chisel effect described above to produce guide strips of various shapes.
De même, l'installation de découpe 80 peut ne découper qu'une seule bande de guidage et non pas deux simultanément comme dans l'exemple décrit ci-dessus.Similarly, the cutting installation 80 can cut only one guide strip and not two simultaneously as in the example described above.
Dans l'exemple décrit ci-dessus, le dispositif de découpe 88 est un module qui peut être démonté du bâti 81 pour pouvoir assurer le réglage des différents éléments, et notamment de ses moyens 108a et 108b de rappel.In the example described above, the cutting device 88 is a module that can be removed from the frame 81 to be able to adjust the various elements, including its means 108a and 108b of return.
Si l'on dispose de plusieurs dispositifs de découpe 88 pour une même installation 80, on peut assurer le réglage d'un dispositif 88 pendant que l'autre dispositif 88 est installé et utilisé dans l'installation 80.If there are several cutting devices 88 for the same installation 80, it is possible to adjust one device 88 while the other device 88 is installed and used in the installation 80.
Plus généralement, l'effet ciseau peut être assuré par déplacement non pas de l'ensemble d'une ou de plusieurs lames, mais par déformation de parties de celles-ci. Cela est illustré par la figure 7, où l'installation 80 n'assure en outre la découpe que d'une bande 51.More generally, the chisel effect can be provided by moving not all of one or more blades, but by deformation of parts thereof. This is illustrated in FIG. 7, where the installation 80 only provides the cutting of a band 51.
La lame inférieure 90 est alors une lame déformable élastiquement horizontalement.The lower blade 90 is then a deformable blade elastically horizontally.
Dans l'exemple représenté, des moyens de rappel élastique 108i à 1083 sont utilisés pour rappeler la lame 90 contre la lame supérieure 92. Toutefois, dans encore une autre variante, l'élasticité de la lame inférieure 90 peut être suffisante pour se dispenser de tels moyens et assurer l'application de la lame inférieure 90 contre la lame supérieure 92. La lame 90 forme alors elle-même les moyens de rappel élastique. In the example shown, elastic return means 108i to 108 3 are used to return the blade 90 against the upper blade 92. However, in yet another variant, the elasticity of the lower blade 90 may be sufficient to dispense with such means and ensure the application of the lower blade 90 against the upper blade 92. The blade 90 then itself forms the elastic return means.

Claims

REVENDICATIONS
1. Elément (1 , 51a, 51b) pour la réalisation d'un emballage de conditionnement d'un produit alimentaire (10), l'élément étant du type comprenant : • une feuille (1) comprenant elle-même :1. Element (1, 51a, 51b) for producing a packaging for packaging a food product (10), the element being of the type comprising: • a sheet (1) comprising itself:
- une zone destinée à former un fond (3) de forme sensiblement triangulaire, la zone destinée à former le fond ayant un axe médian (A),a zone intended to form a bottom (3) of substantially triangular shape, the zone intended to form the bottom having a median axis (A),
- deux zones destinées à former deux parois latérales (9, 11) perpendiculaires au fond (3) se rejoignant le long d'une pointe (15),two zones intended to form two lateral walls (9, 11) perpendicular to the bottom (3) joining along a point (15),
- une zone destinée à former un talon (13) opposé à la pointe (15) et perpendiculaire au fond (3),an area intended to form a heel (13) opposite to the tip (15) and perpendicular to the bottom (3),
- une zone intermédiaire (29) située entre les deux zones destinées à former les parois latérales (9, 11), la zone intermédiaire (29) étant destinée à former un volet (69) replié le long de la pointe (15) contre une première (9) des parois latérales (9, 11),an intermediate zone (29) located between the two zones intended to form the side walls (9, 11), the intermediate zone (29) being intended to form a flap (69) folded along the tip (15) against a first (9) of the side walls (9, 11),
• des moyens (51a, 51b) de guidage de déchirures dans la feuille (1), les moyens de guidage s'étendant sensiblement le long de bords latéraux (5, 7) de la zone destinée à former le fond (3), les moyens de guidage (51a, 51b) formant une languette unique de traction (58) pour provoquer des déchirures, la languette de traction traversant la zone intermédiaire (29) et faisant saillie au- delà de la feuille (1), caractérisé en ce que, dans la zone intermédiaire, la languette de traction (58) est espacée de l'axe médian (A) de la zone destinée à former le fond (3).Means (51a, 51b) for guiding tears in the sheet (1), the guiding means extending substantially along lateral edges (5, 7) of the zone intended to form the bottom (3), the guiding means (51a, 51b) forming a single pull tab (58) to cause tearing, the pull tab passing through the intermediate region (29) and projecting beyond the sheet (1), characterized in that in the intermediate zone, the pull tab (58) is spaced from the median axis (A) of the zone intended to form the bottom (3).
2. Elément selon la revendication 1 , caractérisé en ce que la languette de traction (58) fait saillie depuis la zone intermédiaire (29) d'une longueur (I) adaptée pour que, dans l'emballage (75), la languette de traction (58) fasse saillie au-delà de la première paroi latérale (9). 2. Element according to claim 1, characterized in that the pull tab (58) projects from the intermediate zone (29) of a length (I) adapted so that, in the package (75), the tongue of traction (58) protrudes beyond the first side wall (9).
3. Elément selon la revendication 1 ou 2, caractérisé en ce que les moyens (51a, 51b) de guidage comprennent deux bandes de guidage (51a, 51b) rapportées sur la feuille (1). 3. Element according to claim 1 or 2, characterized in that the means (51a, 51b) for guiding comprise two guide strips (51a, 51b) attached to the sheet (1).
4. Elément selon la revendication 3, caractérisé en ce que la languette de traction (58) est formée par deux extrémités superposées (55a, 55b) des bandes de guidage (51a, 51b).4. Element according to claim 3, characterized in that the pull tab (58) is formed by two superposed ends (55a, 55b) of the guide strips (51a, 51b).
5. Elément selon la revendication 3 ou 4, caractérisé en ce que les bandes de guidage (51a, 51b) ont des épaisseurs strictement inférieures à5. Element according to claim 3 or 4, characterized in that the guide strips (51a, 51b) have thicknesses strictly less than
36μm.36μm.
6. Elément selon l'une des revendications 3 à 5, caractérisé en ce que les bandes de guidage sont réalisées en polyéthylène.6. Element according to one of claims 3 to 5, characterized in that the guide strips are made of polyethylene.
7. Emballage (75) de conditionnement d'un produit alimentaire (70), du type comprenant :7. Packaging (75) for packaging a food product (70), of the type comprising:
- un élément comprenant une première feuille (1), la première feuille étant conformée en godet (2) de réception du produit alimentaire et comprenant un fond (3) de forme sensiblement triangulaire bordé par deux parois latérales (9, 11) se rejoignant en une pointe (15) et une paroi formant un talon (13) opposé à la pointe, les parois latérales (9, 11) et le talon (13) étant perpendiculaires au fond (3), la première feuille comprenant un volet (69) replié le long de la pointe (15) contre une première (9) des parois latérales, le premier élément (1) comprenant des moyens (51a, 51b) de guidage de déchirures afin de permettre l'ouverture de l'emballage, les moyens de guidage (51a, 51b) s'étendant sen- siblement le long de bords latéraux (5, 7) du fond (3) et une languette de traction (58) pour provoquer des déchirures dans la première feuille, la languette de traction (58) s'étendant dans le volet (69) et faisant saillie au-delà de ce dernier, etan element comprising a first sheet (1), the first sheet being shaped as a bucket (2) for receiving the food product and comprising a bottom (3) of substantially triangular shape bordered by two lateral walls (9, 11) joining together in a tip (15) and a wall forming a heel (13) opposite the tip, the side walls (9, 11) and the heel (13) being perpendicular to the bottom (3), the first sheet comprising a flap (69) folded along the tip (15) against a first (9) of the side walls, the first member (1) comprising means (51a, 51b) for guiding tears to allow the opening of the package, the means guide (51a, 51b) extending substantially along lateral edges (5, 7) of the bottom (3) and a pull tab (58) to cause tears in the first sheet, the pull tab ( 58) extending into the flap (69) and projecting beyond the latter, and
- une seconde feuille (71) de recouvrement du produit alimentaire (70) et de fermeture du godet (2) afin de former un couvercle (72) opposé au fond (3), caractérisé en ce que l'élément (1 , 51a, 51b) est un élément selon l'une des revendications précédentes.- a second sheet (71) covering the food product (70) and closing the cup (2) to form a lid (72) opposite the bottom (3), characterized in that the element (1, 51a, 51b) is an element according to one of the preceding claims.
8. Emballage selon la revendication 7, caractérisé en ce que la languette de traction (58) fait saillie au-delà de la première paroi latérale (9). 8. Packaging according to claim 7, characterized in that the pull tab (58) protrudes beyond the first side wall (9).
9. Emballage selon la revendication 8, caractérisé en ce que la languette de traction (58) est rabattue sur le couvercle (72) de l'emballage (75). 9. Packaging according to claim 8, characterized in that the pull tab (58) is folded over the cover (72) of the package (75).
10. Ensemble (73) comprenant un emballage (75) et un produit alimentaire (70) conditionné dans l'emballage, caractérisé en ce que l'emballage est un emballage selon l'une des revendications 7 à 9.10. Assembly (73) comprising a package (75) and a food product (70) packaged in the package, characterized in that the package is a package according to one of claims 7 to 9.
11. Ensemble selon la revendication 10, caractérisé en ce que le produit alimentaire (70) est du fromage fondu.11. The assembly of claim 10, characterized in that the food product (70) is melted cheese.
12. Installation de découpe, à partir d'au moins un film (84a, 84b ; 84), de bandes (51a, 51b ; 51), l'installation comprenant des moyens (83a, 83b ; 83) d'alimentation en film et un dispositif de découpe (88), le dispositif comprenant au moins deux lames (90a, 90b, 92 ; 90, 92) présentant des fils de coupe (96a, 96b, 104a, 104b ; 96, 104) destinés à se faire face, les lames étant mobiles l'une par rapport à l'autre le long d'une direction orthogonale au film afin de propager une découpe dans le film le long des fils de coupe, caractérisée en ce qu'au moins une première (90a, 90b ; 90) des lames est au moins en partie mobile par rapport à une deuxième (92a, 92b ; 92) des lames sensiblement parallè- lement au film (84a, 84b ; 84) pour appliquer transversalement le fil de coupe (104a, 104b ; 104) de la première lame contre le fil de coupe (96a, 96b ; 96) de la deuxième lame.12. Cutting plant, from at least one film (84a, 84b; 84), strips (51a, 51b; 51), the installation comprising means (83a, 83b; 83) for feeding film and a cutting device (88), the device comprising at least two blades (90a, 90b, 92; 90, 92) having cutting wires (96a, 96b, 104a, 104b, 96, 104) for facing each other , the blades being movable relative to one another along a direction orthogonal to the film in order to propagate a cutout in the film along the cutting wires, characterized in that at least one first (90a, 90b; 90) of the blades is at least partly movable relative to a second (92a, 92b; 92) blade substantially parallel to the film (84a, 84b; 84) for transversely applying the cutting wire (104a, 104b 104) of the first blade against the cutting wire (96a, 96b; 96) of the second blade.
13. Installation selon la revendication 12, caractérisée en ce que la première lame (90a, 90b ; 90) est mobile transversalement par pivotement. 13. Installation according to claim 12, characterized in that the first blade (90a, 90b; 90) is movable transversely by pivoting.
14. Installation selon la revendication 12 ou 13, caractérisée en ce qu'il comprend en outre des moyens (108a, 108b ; 108i, 1082, 1083 ; 90) de rappel élastique de la première lame contre la deuxième lame afin de les maintenir l'une contre l'autre.14. Installation according to claim 12 or 13, characterized in that it further comprises means (108a, 108b; 108i, 108 2 , 108 3 ; 90) of elastic return of the first blade against the second blade in order to to maintain one against the other.
15. Installation selon l'une des revendications 12 à 14, caractérisée en ce que la première lame est déformable pour permettre à ladite partie de se déplacer par rapport à la deuxième lame.15. Installation according to one of claims 12 to 14, characterized in that the first blade is deformable to allow said portion to move relative to the second blade.
16. Installation selon les revendications 14 et 15 prises ensemble, caractérisée en ce que la première lame est élastiquement déformable et forme les moyens de rappel élastique. 16. Installation according to claims 14 and 15 taken together, characterized in that the first blade is elastically deformable and forms the elastic return means.
17. Installation selon l'une des revendications 12 à 16, caractérisée en ce que le dispositif de découpe (88) comprend plusieurs premières lames (90a, 90b) disposées de part et d'autre de la deuxième lame (92). 17. Installation according to one of claims 12 to 16, characterized in that the cutting device (88) comprises a plurality of first blades (90a, 90b) disposed on either side of the second blade (92).
18. Installation selon la revendication 17, caractérisée en ce que les premières lames (90a, 90b) sont mobiles transversalement entre une position rapprochée et une position écartée et en ce que, lors de la découpe, les premières lames (90a, 90b) se déplacent de leur position écartée vers leur position rap- prochée.18. Installation according to claim 17, characterized in that the first blades (90a, 90b) are movable transversely between a close position and a spaced apart position and in that, during cutting, the first blades (90a, 90b) are move from their separated position to their close position.
19. Installation selon l'une des revendications 12 à 18, caractérisée en ce que le dispositif de découpe (88) comprend des orifices (100a, 100b) d'aspiration des bandes découpées pour les maintenir contre une des lames.19. Installation according to one of claims 12 to 18, characterized in that the cutting device (88) comprises orifices (100a, 100b) suction strips cut to hold against one of the blades.
20. Installation selon l'une des revendications 12 à 19, caractérisée en ce que le dispositif de découpe (88) forme un module amovible.20. Installation according to one of claims 12 to 19, characterized in that the cutting device (88) forms a removable module.
21. Installation selon l'une des revendications 12 à 20, caractérisée en ce qu'elle comprend une unité électronique (112) de pilotage des moyens d'alimentation en film et du dispositif de découpe (88).21. Installation according to one of claims 12 to 20, characterized in that it comprises an electronic unit (112) for controlling the film supply means and the cutting device (88).
22. Procédé de découpe, à partir d'au moins un film (84a, 84b ; 84), de bandes, caractérisé en ce qu'il est mis en œuvre avec une installation selon l'une des revendications 12 à 21 , la première lame (90a, 90b ; 90) se déplaçant transversalement lors de la découpe.22. A method of cutting, from at least one film (84a, 84b; 84), strips, characterized in that it is implemented with an installation according to one of claims 12 to 21, the first blade (90a, 90b; 90) moving transversely during cutting.
23. Procédé selon la revendication 22, caractérisé en ce que le film (84a, 84b ; 84) a une épaisseur strictement inférieure à 36 μm. 23. The method of claim 22, characterized in that the film (84a, 84b; 84) has a thickness strictly less than 36 microns.
24. Procédé selon la revendication 22 ou 23, caractérisé en ce que le film est un film de polyéthylène.24. The method of claim 22 or 23, characterized in that the film is a polyethylene film.
25. Procédé de découpe selon l'une des revendications 22 à 24, caractérisé en ce que les bandes (51a, 51b ; 51) sont des bandes de guidage de déchirure pour des emballages de conditionnement de produit alimentaire. 25. Cutting process according to one of claims 22 to 24, characterized in that the strips (51a, 51b; 51) are tear-guiding strips for packaging food product packaging.
26. Procédé selon la revendication 25, caractérisée en ce que le produit alimentaire est du fromage fondu.26. The method of claim 25, characterized in that the food product is processed cheese.
27. Emballage de conditionnement (75) d'un produit alimentaire (70) comprenant au moins une bande de guidage (51a, 51b ; 51) d'une déchirure d'ouverture de l'emballage, caractérisé en ce que la bande a été obtenue par un procédé selon l'une des revendications 22 à 26.27. Packaging packaging (75) of a food product (70) comprising at least one guide strip (51a, 51b; 51) of an opening tear of the package, characterized in that the strip has been obtained by a process according to one of claims 22 to 26.
28. Emballage selon la revendication 27, caractérisé en ce que la bande de guidage a une épaisseur strictement inférieure à 36 μm. 28. Packaging according to claim 27, characterized in that the guide strip has a thickness strictly less than 36 microns.
EP20060778861 2005-07-13 2006-07-11 Package for packaging a food product, cutting installation and method Active EP1919802B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL06778861T PL1919802T3 (en) 2005-07-13 2006-07-11 Package for packaging a food product, cutting installation and method
EP20080165975 EP2008948B1 (en) 2005-07-13 2006-07-11 Element for manufacturing a wrapping for packing a food product, corresponding wrapping and assembly comprising such a wrapping and a food product
PL08165975T PL2008948T3 (en) 2005-07-13 2006-07-11 Element for manufacturing a wrapping for packing a food product, corresponding wrapping and assembly comprising such a wrapping and a food product

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0507546A FR2888523B1 (en) 2005-07-13 2005-07-13 DEVICE FOR CUTTING FROM AT LEAST ONE BAND FILM, CUTTING PLANT, CUTTING METHOD AND PACKAGING OF FOOD CONDITIONING OF A FOOD PRODUCT THEREFOR
FR0507545A FR2888571B1 (en) 2005-07-13 2005-07-13 ELEMENT FOR CARRYING OUT A PACKAGING PACKAGING OF A FOOD PRODUCT, CORRESPONDING PACKAGING, AND ASSEMBLY COMPRISING SUCH A PACKAGING AND A FOOD PRODUCT
PCT/FR2006/001691 WO2007006973A2 (en) 2005-07-13 2006-07-11 Element for making a package for packaging a food product, corresponding package, assembly comprising such a package and a food product, cutting installation and method

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP20080165975 Division EP2008948B1 (en) 2005-07-13 2006-07-11 Element for manufacturing a wrapping for packing a food product, corresponding wrapping and assembly comprising such a wrapping and a food product
EP08165975.7 Division-Into 2008-10-07

Publications (2)

Publication Number Publication Date
EP1919802A2 true EP1919802A2 (en) 2008-05-14
EP1919802B1 EP1919802B1 (en) 2013-07-03

Family

ID=37387396

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20060778861 Active EP1919802B1 (en) 2005-07-13 2006-07-11 Package for packaging a food product, cutting installation and method
EP20080165975 Active EP2008948B1 (en) 2005-07-13 2006-07-11 Element for manufacturing a wrapping for packing a food product, corresponding wrapping and assembly comprising such a wrapping and a food product

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20080165975 Active EP2008948B1 (en) 2005-07-13 2006-07-11 Element for manufacturing a wrapping for packing a food product, corresponding wrapping and assembly comprising such a wrapping and a food product

Country Status (10)

Country Link
US (2) US8647249B2 (en)
EP (2) EP1919802B1 (en)
CA (2) CA2827557C (en)
EG (1) EG25224A (en)
ES (2) ES2443722T3 (en)
FR (2) FR2888523B1 (en)
MA (1) MA29571B1 (en)
PL (2) PL2008948T3 (en)
PT (2) PT2008948E (en)
WO (1) WO2007006973A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2888523B1 (en) * 2005-07-13 2008-10-10 Bel Fromageries DEVICE FOR CUTTING FROM AT LEAST ONE BAND FILM, CUTTING PLANT, CUTTING METHOD AND PACKAGING OF FOOD CONDITIONING OF A FOOD PRODUCT THEREFOR
JP4505532B2 (en) * 2008-12-02 2010-07-21 森永乳業株式会社 Wrapping material and a packing body in which a solid product is wrapped with the packing material
FR2939350B1 (en) * 2008-12-09 2011-01-14 Arcil OFFSET CUTTING MACHINE FOR TRUNCONIC SUPPORTS AND SETTING OF TRUNCONIC SUPPORTS AND DECORATION MOUNTING, COMPRISING SUCH CUTTING MACHINE
KR102077121B1 (en) 2012-06-18 2020-02-13 제이티 인터내셔널 소시에떼 아노님 Tear tape for product wrapper
FR3035084B1 (en) 2015-04-17 2019-11-29 Fromageries Bel PACKAGING ELEMENT FOR CARRYING OUT A FOOD PACKAGING PACKAGING AND FOOD PACKAGING PACKAGING
FR3035077B1 (en) * 2015-04-17 2018-07-13 Fromageries Bel PROCESS FOR PRODUCING A PACKED PORTION OF FOOD PRODUCT, AND PORTION OBTAINED THEREBY

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CH441110A (en) * 1965-07-23 1967-07-31 Gerberkaese Ag Tear-open pack in the shape of a circular cylinder, especially for a portion of cheese
CH617903A5 (en) * 1976-08-25 1980-06-30 Nestle Sa Envelope for packaging products, method of making it and device implementing this method
CH665403A5 (en) * 1985-11-11 1988-05-13 Sapal Plieuses Automatiques ENVELOPE FOR PACKAGING PRODUCTS, METHOD FOR MANUFACTURING SUCH AN ENVELOPE AND ITS USE.
FR2597436B1 (en) * 1986-04-16 1988-07-01 Bel Fromageries PACKAGING PACKAGE WITH FULL OPENING, ESPECIALLY FOR PASTA FOOD PRODUCTS
FR2597441B1 (en) 1986-04-16 1988-07-01 Bel Fromageries NEW PACKAGING PACKAGE WITH FULL OPENING, ESPECIALLY FOR PASTA FOOD PRODUCTS
FR2630405B1 (en) * 1988-04-26 1990-09-07 Bel Fromageries BODY FOR OPENING A PACKAGING PACKAGING OF A PASTE PRODUCT BY SCRAPING
DE29903463U1 (en) * 1999-02-26 2000-06-21 Hassia Verpackungsmaschinen Gmbh, 63691 Ranstadt Packaging machine for the production of sachet packs, in particular tubular bags
FR2803582B1 (en) * 2000-01-07 2002-06-14 Bel Fromageries ELEMENT FOR A PACKAGE OF A PORTION OF A FOOD PRODUCT AND ASSEMBLY COMPRISING SUCH A PACKAGE AND A PORTION OF A FOOD PRODUCT
FR2854388B1 (en) 2003-04-29 2005-08-05 Bel Fromageries PACKAGING FOR FOOD PRODUCT, ASSEMBLY COMPRISING SUCH PACKAGING AND FOOD PRODUCT, AND SHEET FOR FORMING SUCH PACKAGING
FR2854391B1 (en) * 2003-04-30 2005-06-24 Bongrain Sa INDIVIDUAL PACKAGING CONTAINING A PASTAL FOOD PRODUCT AND PROVIDED WITH AT LEAST ONE ARRANGEMENT MEMBER, AND METHOD OF MANUFACTURING SUCH A PACKAGING
FR2888523B1 (en) * 2005-07-13 2008-10-10 Bel Fromageries DEVICE FOR CUTTING FROM AT LEAST ONE BAND FILM, CUTTING PLANT, CUTTING METHOD AND PACKAGING OF FOOD CONDITIONING OF A FOOD PRODUCT THEREFOR

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Also Published As

Publication number Publication date
US8647249B2 (en) 2014-02-11
FR2888523B1 (en) 2008-10-10
PT2008948E (en) 2014-02-04
US20080276569A1 (en) 2008-11-13
WO2007006973A2 (en) 2007-01-18
US7968133B2 (en) 2011-06-28
WO2007006973A3 (en) 2007-05-18
EG25224A (en) 2011-11-17
EP2008948A3 (en) 2012-07-18
EP1919802B1 (en) 2013-07-03
EP2008948A2 (en) 2008-12-31
FR2888571B1 (en) 2010-04-09
EP2008948B1 (en) 2013-11-06
ES2443722T3 (en) 2014-02-20
PL2008948T3 (en) 2014-04-30
FR2888523A1 (en) 2007-01-19
CA2827557C (en) 2015-09-15
US20090065563A1 (en) 2009-03-12
CA2827557A1 (en) 2007-01-18
CA2614738A1 (en) 2007-01-18
FR2888571A1 (en) 2007-01-19
PL1919802T3 (en) 2013-11-29
CA2614738C (en) 2014-06-10
MA29571B1 (en) 2008-06-02
PT1919802E (en) 2013-10-01
ES2424360T3 (en) 2013-10-01

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