EP1858767B1 - Couvercle a ouverture facile et son procede de production - Google Patents

Couvercle a ouverture facile et son procede de production Download PDF

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Publication number
EP1858767B1
EP1858767B1 EP06705386.8A EP06705386A EP1858767B1 EP 1858767 B1 EP1858767 B1 EP 1858767B1 EP 06705386 A EP06705386 A EP 06705386A EP 1858767 B1 EP1858767 B1 EP 1858767B1
Authority
EP
European Patent Office
Prior art keywords
heat
coating
sealable
lid
tear
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.)
Not-in-force
Application number
EP06705386.8A
Other languages
German (de)
English (en)
Other versions
EP1858767A1 (fr
Inventor
Marcel Oberholzer
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.)
Soudronic AG
Original Assignee
Soudronic AG
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 Soudronic AG filed Critical Soudronic AG
Publication of EP1858767A1 publication Critical patent/EP1858767A1/fr
Application granted granted Critical
Publication of EP1858767B1 publication Critical patent/EP1858767B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/50—Non-integral frangible members applied to, or inserted in, preformed openings, e.g. tearable strips or plastic plugs
    • B65D17/501—Flexible tape or foil-like material
    • B65D17/502—Flexible tape or foil-like material applied to the external part of the container wall only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0059—General cross-sectional shape of container end panel
    • B65D2517/0061—U-shaped
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/008—Materials of container end panel
    • B65D2517/0082—Coated or laminated metal
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5013—Details of flexible tape or foil-like material the tape covering almost the whole of the container end panel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5024—Material
    • B65D2517/5027—Single layer
    • B65D2517/5029—Single layer and connected to container by local areas of adhesive
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5002—Details of flexible tape or foil-like material
    • B65D2517/5024—Material
    • B65D2517/5032—Laminated
    • B65D2517/5035—Laminated and connected to container by local areas of adhesive
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/504—Details of preformed openings
    • B65D2517/5043—Details of preformed openings provided with a flange
    • B65D2517/5051—Up-turned flange, i.e. extending away from container
    • B65D2517/5054—Up-turned flange, i.e. extending away from container rolled or folded back, e.g. to avoid sharp edges
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/50—Non-integral frangible members applied to, or inserted in, a preformed opening
    • B65D2517/5072—Details of hand grip, tear- or lift-tab
    • B65D2517/5083—Details of hand grip, tear- or lift-tab with means facilitating initial lifting of tape, e.g. lift or pull-tabs

Definitions

  • the invention relates to a method for producing a tear-open lid according to the preamble of claim 1, in which a tear-open foil is fastened by means of heat-sealing by means of a heat-sealable material to a cover ring with removal opening.
  • covers for can or box-type packaging as cover rings permanently fastened on top of the packaging, in particular of metal, which form a removal opening which, until the first use of the contents of the package, is interrupted by a heat-sealable seal on the cover ring. in particular metal foil, is closed.
  • Such covers can be referred to as a tear-open lid.
  • An additional, arranged over the metal lid lid made of plastic makes the packaging during the period of consumption of their contents resealable.
  • the cover ring is known to be made of fully coated starting material, wherein on the top of the starting material intended for heat-sealing the tearable film, a heat-sealable polypropylene coating or polypropylene-containing coating is applied over the entire surface.
  • the invention is based on the object to provide a method for producing tear-open.
  • the heat-sealable coating is applied only to the edge or in the connection region on the later forming the edge or connecting region region of the undeformed starting material before applying and sealing the film.
  • the heat-sealable layer is limited to the edge of the removal opening or only on the connection area and thus is essentially limited to the actual sealing area, in which the cover ring and the tear-open are connected, a significant amount of the heat-sealing material can be saved. Furthermore, it has been found that the heat sealable coating material is unfavorable in the deformation of the lid outside the seal area and is often injured, for example, during flanging. Outside the sealing area, however, a different coating of the lid can be provided, for example a coating of PET (polyethylene terephthalate), which is already known in the art as underside coating (ie the filling in the container facing coating).
  • PET polyethylene terephthalate
  • the PET coating in the connection area or on the edge of the removal opening may be below the heat-sealable coating or be recessed there.
  • the heat sealable Coating a polypropylene layer or a polypropylene-containing layer, but other heat-sealable materials can be used.
  • FIG. 1 shows a schematic side view of a known device 1, which has a plurality of processing stations 3 to 8 and a further station 9 on a machine frame 2.
  • a conveyor 10, 13, 14 conveys the lid parts or the finished lid with tear-off in the conveying direction, which is indicated by the arrow C, from the beginning of the device at the stack 11 to the end of the device where the lid slides over into the shelves 16 or 17 arrive. From the stack 11 lid parts are stacked in a known manner and get into the conveyor.
  • FIG. 2 shows stacked metal lid blanks 20 as an example of lid parts as they are in the stack 11.
  • These blanks 20 are for example round metal discs of eg 11 cm diameter. Of course, other basic shapes, such as square or rectangular discs and other diameters are readily possible.
  • the blanks 20 are already in a processing machine, not shown, at its edge as in FIG. 2 shown preformed. According to one embodiment of the present invention, they may already be suitably heat-sealably coated in only one area or, according to another embodiment, they are only coated in one area in a subsequent step. Both will be explained in more detail later. In the FIG. 2 and the following figures, only one sector of the entire disk is shown to simplify the drawings.
  • FIG. 3 In the first processing station 3 of FIG. 1 is punched by punching with top and bottom tool an opening (removal opening of the lid) into the disc, which is in FIG. 3 it can be seen in which the edge of the opening is denoted by 21 and the punched round disc with 27.
  • This disc arrives as waste in the container 12 of FIG. 1 .
  • the punching processing station 3 is driven by a drive 15, as is the case with the other stations.
  • a pulling of the edge 21 takes place downwards, whereby the in FIG. 3 shown course 22 of the edge is achieved.
  • the metal foil 25 may also be provided on the underside thereof also over the entire surface with a heat-sealable plastic layer according to the prior art.
  • the required film blank 25 is usually punched out in the station 5 from a wide film web and placed over the central recess of the cover ring and the film is pressed by the heat sealing station at the edge of the circular recess of the part 20 under heat, so that the film 25 with the metal cover ring 20 'is sealed by melting and subsequent cooling of the plastic layer. This process is basically known and will not be explained here.
  • a cooling processing station can cool down 7 be provided.
  • the film 25 is embossed 24 (FIG. FIG. 7 ), and it is further the edge 22 crimped to the finished edge 23.
  • a test station 9 the now finished lid are subjected to a test, which usually includes a density test for the peel-off film 25 applied to the lid. If the film is tightly mounted on the remaining metal lid, the lid enters the receptacle 16 for the finished lid. If a leak is detected, the lid passes over the other slide shown in the waste container 17th
  • FIG. 13 shows an embodiment of a cover ring for a tear-open.
  • the cover ring 20 ' may be shaped similar or identical to those in the FIGS. 2 to 8 illustrated cover rings or tear-open lid.
  • the cover ring is now completely visible and also its removal opening 25 ', which is subsequently covered by the tear-open film 25 by being sealed onto the cover ring.
  • the heat-sealable coating is provided only at the edge of the removal opening and in particular only in the actual connection region between the cover ring and tear-open, which in the FIG. 13 is shown by a strip 62 of heat-sealable plastic material.
  • Corresponding heat-sealable coating materials are known in the art and are used commercially for sealing the tear-open film.
  • One of them different plastic coating which thus forms the sole plastic coating of the top of the lid ring outside the edge of the removal opening or the connection area, for example, may be a coating of PET (polyethylene terephthalate).
  • PET polyethylene terephthalate
  • Such a non-heat-sealable layering can, of course, also be located in the edge or connection area, but then lies below the heat-sealable coating 62 FIG. 13 invisible underside of the cover ring may be provided with such a different to the heat-sealable coating coating and in particular also a PET coating.
  • FIG. 10 shows a production variant according to the invention, in which the heat-sealable coating material is applied to the starting material for the production of the cover rings.
  • the starting material 60 is a metal sheet, which may be provided with a metallic coating, for example.
  • On the metal sheet may further be provided a plastic coating of a not intended for heat sealing plastic material, which is, for example, the mentioned PET coating.
  • This coating can be provided on both sides of the starting material 60 or the metal sheet 60, so in particular over the entire surface on the upper side visible in the figure and / or also over the entire surface on the underside which is not visible in the figure.
  • the heat-sealable plastic coating in particular polypropylene coating, is then applied to the starting material 60 in such a way that it is applied to the cover blank 20 formed from the starting material 60 or Cover ring 20 'comes to rest on the edge of the removal opening 25' or in the connection area.
  • This is in turn represented by the band-shaped plastic layer 62, which can be sprayed, for example by means of movable nozzles 61, or which can also be placed as a finished tape.
  • FIG. 11 and 12 show non-inventive other embodiments for applying the heat-sealable coating or for the formation of the cover ring.
  • the heat-sealable coating 62 is applied to the already preformed cover ring 20 ', in which already the removal opening is formed and the edge of the removal opening has been flanged.
  • FIG. 11 This is a simple curl 66, where, however, in the variant of Figure 12, a special flanging has been selected, which is known under the technical term "retort-curl".
  • this bead 67 the resulting by the formation of the removal opening cut edge in which a possible sheet metal coating is no longer intact, flanged upwards and inwards, like this FIG. 12 is apparent.
  • the heat-sealable coating 62 is applied to the edge 68 of the removal opening, for example by a corresponding nozzle 63, which is stationarily arranged above the rotating cover ring, or which drivingly moves along the edge of the stationary cover ring.
  • a corresponding nozzle 63 which is stationarily arranged above the rotating cover ring, or which drivingly moves along the edge of the stationary cover ring.
  • the coating 62 covers the flanging region, so that the cut edge is likewise enclosed by the coating.
  • the coating can cover substantially the entire edge 68 of the removal opening, as with the coating 62 of FIG. 12 is shown, or the coating may also be made less wide, so that it covers substantially only the connection area over which the tear-off is attached.
  • an additional non-heat-sealable plastic coating may be provided on the cover ring, eg a PET coating which covers the cover ring at the areas not covered by the heat-sealable coating 62, but which may also be below the heat-sealable coating 62. In any case, it is relevant to the invention that the heat-sealable coating 62 does not extend over the entire upper side of the cover ring.
  • the underside of the respective cover ring may be provided with a non-heat-sealable coating, preferably in turn a PET coating.
  • a non-heat-sealable coating preferably in turn a PET coating.
  • FIG. 15 shows the embodiment of FIG. 12 with already attached tear-off film 25.
  • the same reference numerals designate again the same elements, in particular the heat-sealable coating 62, which extends over the retort curl 67.
  • the heat-sealable coating 62 at the edge of the removal opening can also extend over the actual connection region which is defined by the congruent region of tear-open film and edge 68, which is indicated by the part 62 'of the heat-sealable coating, which is slightly above the connection region protrudes and is located on the edge 68 outside the connection area.
  • the surface 70 of the lid with the cover ring 20 ' may, as already mentioned several times be provided with a coating, in particular a PET coating, which may also extend below the heat-sealable coating 62 on the edge 68.
  • the bottom 69 may be provided with such or another plastic coating, which are preferably already provided on the flat starting material.
  • the heat-sealable coating 62 may be applied as a finished tape instead of being applied by means of the nozzles 63.
  • FIG. 14 further shows an embodiment in which on the tear-open film 25 on the underside a heat-sealable coating in the form of only a marginal coating 65, in particular the band-shaped coating 65 is applied.
  • This coating may be provided instead of or in addition to the heat-sealable coating 62 of the cover ring and performs according to the finished connection FIG. 15 to substantially the same result, in which the heat-sealable coating 62 is only on the edge 68 or in the connection region between the cover ring and tear-open film.
  • the width of the coating 65 of the tear-open film can be selected so that a retort curl 67 is covered. It is also possible to provide both coatings 62 on the cover ring and 65 on the tear-open film.
  • the application of the coating 65 on the underside of the tear-open film can according to FIG. 10 take place, in which case the starting material 60 is just the material of the tear-open, which is subsequently punched out of the starting material 60, including the tear tab 71.
  • FIG. 9 shows a schematic representation of a conveyor device 30 according to a preferred embodiment.
  • This conveying device 30 is designed for conveying lid-shaped objects of the type described.
  • the conveyor again serves to intermittently Conveying the lid parts or lid to the individual processing stations, which are preferably the previously described processing stations for lid production and the test station 9. These stations are in FIG. 9 not shown, but it is clear to the skilled person how he can arrange these along the conveyor to perform the respective processing.
  • a further conveying device 30 ' is arranged next to the conveying device 30. This can be driven by the same drive 33, 37 or have its own drive. Further conveying devices could be provided in order to increase the total number of conveyed lid parts or lids.
  • the cover parts or covers can be conveyed at high speeds of, for example, 200 objects per minute and with reproducible sub-steps between the stations. It also results in a flexible concept for a large format range of the items or lid, which can range from 50 to 200 mm in diameter with round lids and can also accommodate various rectangular formats, eg for the common fish cans.
  • the conveyor is also designed as a compact module for single-track or multi-track as shown.
  • the conveying device has two toothed belts 31 and 32, which in particular lie with their surfaces in the same planes, that is coplanar, and which are guided at the beginning and at the end of the conveyor via pulleys 34, 36, so that an endless belt drive in the necessary for the number of processing stations length.
  • the stepwise synchronized with the processing stations timing belt movement is effected by a stepper motor or servo motor which drives the timing belt by sprockets, as can be seen in the figure with the motor 33 and the drive shaft 38. If further conveying devices, as the conveyor device 30 'are provided, so the timing belt can be driven via the same engine via other drive axles or have its own motor drive.
  • the motor 33 is controlled by a timing belt advancing control 37, which control 37 is either an entire control of the lid manufacturing apparatus which also controls the processing stations and the station 9, or which controller 37 is a conveyer only controller. which communicates with a parent controller for the lid manufacturing device.
  • the motor 33 and the other drive components for the toothed belts are arranged on a machine frame 35, which is indicated in the figure only by the feet 35.
  • On the timing belt drivers are attached, which in FIG. 9 are generally designated 40, wherein the opposing drivers of the toothed belts 31 and 32 form a receptacle for the respective object.
  • this recording formed by the carriers 40 along the conveying path and in the direction of the arrow C is shown from the input side of the conveyor, which is located on the motor side, to the output side of the guide roller 36 moves.
  • a cover 50 is provided in each case above the toothed belt and over the drivers 40, which cover in each case the toothed belt and a part of the driver.
  • this cover 50 each has a recess 52 which allows removal of the objects from the drivers 40 so that the object can be lifted from the carriers and processed in the station and subsequently returned to the driver.
  • no recesses 52 are provided between the stations, so that there the lifting of the objects is blocked by the carriers through the cover 50.
  • the drivers can also be designed magnetically, which can also prevent lifting of the objects during the conveying step, if the object consists at least partially of a magnetically firm material.
  • the spacing of the toothed belts 31 and 32 is adjustable relative to one another, whereby the distance of the mutually opposite drivers 40 of the two toothed belts is adjustable in order to be able to adapt the conveyor to different object sizes.
  • transverse connections 58 can be provided in the conveying device, which allow a simple adjustment of the distance of the toothed belt from each other.
  • the drive shaft 38 is configured to allow this distance adjustment.
  • the distances between the drivers 40 on the respective toothed belt are given by the pitch of the toothed belt and the Mitauerbefest Trent. This distance can be changed to adapt to the object size preferably such that the timing belt are exchanged for a set of other timing belt with spaced apart from each other drivers 40.
  • both illustrated embodiments of the manufacturing or conveying device is for non-inventive Embodiments in which the heat-sealable coating is applied to the cover ring, a corresponding processing station provided along the conveying path, this of course before the heat-sealing station.
  • the coating is then already present on the lid blanks at the beginning of the illustrated processing and conveying paths and also on the material of the tear-open, which, as known, only needs to be punched ,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Closing Of Containers (AREA)

Claims (6)

  1. Procédé de fabrication d'un couvercle détachable, pour lequel une pellicule détachable (25) est attachée à un anneau de couvercle (20') avec une ouverture d'extraction (25') par thermoscellage à l'aide d'un matériau thermoscellable, le matériau thermoscellable (62) étant appliqué sur l'anneau de couvercle uniquement au bord (68) de l'ouverture d'extraction (25) ou dans la zone de connexion avec la pellicule détachable, caractérisé en ce que le matériau thermoscellable (62) est appliqué sur le matériau initial (60) afin de fabriquer l'anneau de couvercle avant sa déformation ou emboutissage, et/ou en ce que du matériau thermoscellable (65) est appliqué sur le matériau de la pellicule détachable uniquement au bord de la pellicule détachable avant son emboutissage.
  2. Procédé selon la revendication 1, caractérisé en ce que le matériau thermoscellable est appliqué comme liquide ou est posé comme bande solide.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce qu'un bordage (67) orienté vers le haut et vers l'intérieur est prévu à l'anneau de couvercle (20') et en ce que le revêtement thermoscellable est appliqué de sorte qu'il couvre au moins partiellement le bordage.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'anneau de couvercle ou bien son matériau initial est doté d'un revêtement en plastique non-thermoscellable au moins d'un côté, préférablement des deux côtés.
  5. Procédé selon la revendication 4, caractérisé en ce que le revêtement non-thermoscellable s'étend au-dessous du revêtement thermoscellable (62) en appliquant ce dernier comme couche sur le revêtement non-thermoscellable.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que les couvercles sont transportés sur un dispositif de transport linéaire à l'aide des courroies dentées ou des chaines aux stations de traitement et par conséquent à la station de thermoscellage.
EP06705386.8A 2005-03-17 2006-03-13 Couvercle a ouverture facile et son procede de production Not-in-force EP1858767B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4532005 2005-03-17
PCT/CH2006/000146 WO2006097005A1 (fr) 2005-03-17 2006-03-13 Couvercle a ouverture facile et son procede de production

Publications (2)

Publication Number Publication Date
EP1858767A1 EP1858767A1 (fr) 2007-11-28
EP1858767B1 true EP1858767B1 (fr) 2018-05-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06705386.8A Not-in-force EP1858767B1 (fr) 2005-03-17 2006-03-13 Couvercle a ouverture facile et son procede de production

Country Status (5)

Country Link
US (1) US20080223856A1 (fr)
EP (1) EP1858767B1 (fr)
ES (1) ES2670943T3 (fr)
PT (1) PT1858767T (fr)
WO (1) WO2006097005A1 (fr)

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TWI570024B (zh) * 2009-05-13 2017-02-11 四國化工機股份有限公司 Method for manufacturing food - filled sealed containers
CH701925A1 (de) * 2010-07-06 2011-03-15 Soudronic Ag Aufreissdeckel sowie Vorrichtung und Verfahren zu seiner Herstellung sowie Behälter mit einem solchen.
PL2825334T3 (pl) * 2011-04-20 2022-01-17 Crown Packaging Technology, Inc. Sposób formowania profilu w pierścieniu metalowym
CH709571A1 (de) * 2014-04-29 2015-10-30 Soudronic Ag Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln sowie ein Aufreissdeckel.
BR202014021077U2 (pt) * 2014-07-18 2016-04-26 Edilberto Acacio Da Silva disposição construtiva introduzida em embalagem
CH716413A1 (de) * 2019-07-18 2021-01-29 Soudronic Ag Verfahren und Vorrichtung zur Herstellung von Aufreissdeckeln sowie Aufreissdeckel.

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EP1858767A1 (fr) 2007-11-28
WO2006097005A1 (fr) 2006-09-21
US20080223856A1 (en) 2008-09-18
ES2670943T3 (es) 2018-06-04
PT1858767T (pt) 2018-07-12

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