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
  • 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
• • 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
  • B65D75/5827—Tear-lines provided in a wall portion
  • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
  • B65D75/5838—Tear-lines provided in a wall portion for tearing out a portion of the wall combined with separate fixed tearing means, e.g. tabs
• • 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
  • B65D75/70—Rigid cutting or tearing devices

Definitions

• such a container of the type comprising a laminate provided with at least one paper layer and one aluminium layer, is used for containing high density food products, such as puddings, homogenized fruit or the like, etc, to be consumed, preferably, directly from the container.
• high density food products such as puddings, homogenized fruit or the like, etc
• a spoon, or tea spoon is used, which because of the size of the opening, can deeply enter to collect the food product lying on the bottom of the container.
• All along the manufacturers of containers comprising a laminated layer provided with at least one paper layer and an aluminium layer advised against using such a kind of containers for containing highly dense food products since it is known that is very difficult to realize such a container which is provided with an upper perforated portion, i.e. located on the upper base, dimensioned so to receive a spoon to empty the container itself and in the meanwhile ensuring the sterility of the product and a suitable structural strength of the container.
• said at least one first region substantially delimits the edge of said perforated portion comprised between said at least two pre-weakening lines.
• said at least one constraining portion comprises, as well, at least one second region directly or indirectly constrained to at least part of said at least one paper or cardboard layer between said at least two pre-weakening lines, wherein said at least one first region and said at least one second region are continuously connected to each other.
• said at least one first region and/or said at least one second region, as well as preferably said at least one perforated portion, extend widthwise substantially between said at least two pre-weakening lines.
• said at least one cutter and said at least one tab are made of plastic material, and preferably, by molding.
• the cutter preferably provided with a plurality of teeth, has a curved shape and it extends for most of the length comprised between said two pre-weakening lines.
• said at least one cutter and said at least one grip portion rotate with respect to said constraining portion, integral with the container, around a plastically deformable hinge.
• each pre-weakening line is provided with at least one first plurality of herringbone branches and at least one second plurality of herringbone branches, tilted one with respect to another in an opposing way such that said at least one second plurality of herringbone branches aids to facilitate the rupture of said at least one first plurality of herringbone branches.
• the said at least one second plurality of herringbone branches is made so that the branches follow a weakening line intersecting the branches of said at least one first plurality of herringbone branches, to facilitate the rupture of the latter. In this way, as the paper layer lifts, the pre-weakening and branching lines are followed the user being unable to deviate from them. This allows avoiding the container to be severed along not pre-established lines and, thus, generating unwanted delamination of the material.
• said at least one perforated portion preferably having a rectangular shape, is arranged on the front, or back side face, of said container so that it has even more surface for obtaining the opening through which the food product contained in the container is collected.
• said severing step by said cutter is preceded by the step of rotating said tab around said plastically deformable hinge.
• FIGS. 3a, 3b and 3c are three perspective views of a container in accordance with a further embodiment of the invention in three different steps during the opening of the containers;
• figure 6 is a sectional view of the opening means of figure 5;
• figure 7 is a perspective view from bottom of the opening means of figure 5;
• figure 9 is a top view of the container according to a further embodiment of the pre-weakening lines.
• figure 10 is a top view of the container according to a third embodiment of the pre-weakening lines.
• numeral 1 is shown a container according to the invention.
• Figure 1 shows a container 1 for high density pourable products 100 such as, for example, a pudding, comprising a laminate 2 provided with a paper layer 3, having a perforated portion 4, and with aluminium layer 5 indirectly internally applied to said paper layer 3.
• said laminate 1 comprises an outer layer 20 made of thermoplastic material applied outside of said paper layer 3 and an intermediate layer 21 made of thermoplastic material applied between said paper layer 3 and said aluminium layer 5. Therefore, in practice, such an intermediate layer 21 is directly welded to said outside layer 20 at said perforated portion 4.
• a container comprising a laminate 2, further provided with a plurality of layers made of thermoplastic material or the like applied on the inner face of the aluminium layer still falls within the scope of protection of the present invention.
• said paper layer 3 has two discrete pre- weakening lines 7, 8 extending from said perforated portion 4 of said paper layer 3.
• said opening means 6 of the container 1 comprise a tab 9, totally in aluminium, provided with a grip portion 10, graspable by the user, and with a constraining portion 11 comprising a first region 12 indirectly constrained, at said perforated portion 4, on at least part of said aluminium layer 5.
• the tab 9 is welded, by heat - welding, on the outer layer 20, but at the end of the welding it remains substantially constrained both to the intermediate layer 21 and the aluminium layer 5, thus remaining firmly constrained to the latter.
• the aluminium layer 5 arranged under the paper layer 3 keeps being cut along the direction of the two pre- weakening lines 7 and 8 such that an opening 200, much wider than the perforated portion 4 initially present in the container 1 , before the opening step, can be obtained.
• the opening of the container 1 can be facilitated by severing at least part of said aluminium layer 5 by at least one cutter 75, at the available region 70 of said perforated portion 4 and from side opposite to said paper layer 3 comprised between said two pre-weakening lines 7 and 8.
• said first region 12 substantially delimits the edge 4a of said perforated portion 4 comprised between said at least two pre-weakening lines 7 and 8. Said first region 12 also extends in width L between said two pre-weakening lines 7 and 8. Said perforated portion 4 also extends in width L between said two pre-weakening lines 7 and 8. In view of what said, therefore, the above mentioned available region 70 is on the opposite side of the edge 4a of said perforated portion 4.
• said constraining portion 11 comprises, as well, a second region 13 constrained between said two pre-weakening lines 7 and 8, indirectly on part of said paper layer 3. In practice said second region 13 of the tab 9 is welded on the outer layer 20, but at the end of the welding it remains substantially constrained to the paper layer 3 to the intermediate layer 21 made of thermoplastic material and to the underlying aluminium layer 5.
• Said first region 12 and said second region 13 are continuously connected one to another forming a single body. Also, both said first region 12 and said second region 13 extend widthwise L substantially between said two pre- weakening lines 7 and 8.
• Both the embodiments herein shown provide the two pre-weakening lines 7 and 8 to be straight and parallel one to another, however an alternative embodiment, wherein said two pre-weakening lines are not parallel and not straight, still falls within the scope of protection of the present invention.
• both said pre-weakening lines 7 and 8 show a plurality of branches orthogonal with respect to the main direction, "T-shaped”, or “L-shaped” or “l-shaped”, or “C-shaped”.
• said perforated portion 4 is arranged on the front side face 1a of said container 1.
• two advantages can be obtained. For one thing a greater area can be exploited, with respect to the area offered by the upper side 1 b of the container 1 , and for another the depth of the container 1 , when used by the user, is smaller than the area that would be available in case of opening obtained on the upper face 1b.
• said perforated portion 4 has a substantially rectangular shape. In this way the dimensions of the perforated portion 4 larger than the classical circular dimensions are exploited.
• said cutter 75 is integral with the grip portion of said tab 9. Further, said cutter 75 comprises a spoon - shaped portion such that this cutter 75 can be used as a collecting means also to collect the contents of the container.
• a method for realizing a container 1 according to one or more of the claims from 1 to 17. Specifically, such a method comprises the steps of: a) forming one perforated portion 4 on said paper or layer 3; b) applying, either directly or indirectly as in the case of the described embodiment, said aluminium layer 5 onto the inside of said paper layer 3; c) applying said tab 9 onto said laminate 2 at said perforated portion 4.
• said step e) includes the step of constraining, either directly or indirectly (see figures 2 and 4), said second region 13 of said at tab 9 onto at least part of said paper layer 3, between said at least two pre-weakening lines 7 and 8.
• said step b) is preceded by the step of f) applying an outer layer 20 made of a thermoplastic material to the outside of said at least one paper layer 3, and the step of g) applying an intermediate layer 21 made of a thermoplastic material to the inside of said paper layer 3 so as to weld said intermediate layer 3 directly to said outer layer 20 at said perforated portion 4.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Cartons (AREA)
• Packages (AREA)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

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Publications (2)

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• 2011
  • 2011-11-11 IT IT002054A patent/ITMI20112054A1/it unknown
• 2012
  • 2012-05-11 CN CN201280064591.8A patent/CN104024124B/zh not_active Expired - Fee Related
  • 2012-05-11 RU RU2014123674A patent/RU2628966C2/ru active
  • 2012-05-11 WO PCT/IB2012/000927 patent/WO2013068797A1/en not_active Ceased
  • 2012-05-11 EP EP12731651.1A patent/EP2776336B1/de active Active

Non-Patent Citations (1)

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