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EP1716051B1 - Fermeture a rabat pour emballages composites et en carton, a ouverture automatique de l'emballage par depliage - Google Patents

Fermeture a rabat pour emballages composites et en carton, a ouverture automatique de l'emballage par depliage Download PDF

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Publication number
EP1716051B1
EP1716051B1 EP05700372A EP05700372A EP1716051B1 EP 1716051 B1 EP1716051 B1 EP 1716051B1 EP 05700372 A EP05700372 A EP 05700372A EP 05700372 A EP05700372 A EP 05700372A EP 1716051 B1 EP1716051 B1 EP 1716051B1
Authority
EP
European Patent Office
Prior art keywords
lid
base element
guide
tongue
opening
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.)
Expired - Lifetime
Application number
EP05700372A
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German (de)
English (en)
Other versions
EP1716051A1 (fr
Inventor
Josef Felber
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.)
SIG Services AG
Original Assignee
SIG Technology 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 SIG Technology AG filed Critical SIG Technology AG
Priority to PL05700372T priority Critical patent/PL1716051T3/pl
Publication of EP1716051A1 publication Critical patent/EP1716051A1/fr
Application granted granted Critical
Publication of EP1716051B1 publication Critical patent/EP1716051B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening

Definitions

  • This invention relates to a flap closure for composite and carton packs in which the package is automatically opened by unfolding.
  • a conventional closure according to the preamble of claim 1, is characterized by WO 01/21492 disclosed.
  • composite packages of foil-coated paper are conceived in which, for example, milk, fruit juices, all kinds of non-alcoholic beverages or generally liquids are also packaged from the non-food sector.
  • the closure can also be used for composite or carton packs in which bulk goods such as sugar, semolina or all kinds of chemicals and the like are stored or packaged. If the closure works for such composite packages made of plastic film reinforced laminates, it is understood that it can also be used on simple paper or carton packs that are much easier to tear because of the lack of laminate film.
  • the film-coated paper of composite packages is a laminate material, such as a paper or board web coated with plastic such as polyethylene and / or aluminum.
  • the sealing film thus consists of an aluminum or plastic film, which is glued on the inside of the composite package with the cardboard layer of the pack. But it can also be formed by a PE coating, which is welded by means of a high-frequency welding on the inside of the cardboard material of the composite package. Common volumes of such packages of such laminates range from 20cl to 2 liters and more.
  • Plastic closures for closing such composite packages are known in various designs. They consist of a frame-like base element which is to be welded onto the composite package and a lid cap which pivots thereon and which covers the frame and thus closes the base element and is usually provided with a guarantee strip which must be torn away for the first pivoting of the cover cap.
  • a major disadvantage of previous closures is the fact that the place where the closure is placed on the composite package, must be pretreated, for which there are several variants. Often there is punched out of the composite package to the shape of the clear opening of the closure matching hole, which is then subsequently closed again with a sealing film. Only then is the closure placed over the punched out hole on the packaging, so that after the pivoting of the lid cap only the sealing film is removed. For example, a tongue projects into the clear opening of the base element for this removal. This is equipped at the top with a push button on which the user can press with a finger, after which the tongue swings down, thereby rupturing and pressing down the sealing foil.
  • the depression of the sealing film with a finger is not particularly hygienic. The fingers can be so dirty and even can get from the fingers unwanted bacteria in the drinking liquid.
  • the composite package at the point where the closure is glued or welded elaborately vorwacht.
  • the film material is punched through to the associated sealing film.
  • this requires extremely precise punching tools and punching machines. If punched too deeply, the sealing foil is damaged or severed, after which the composite pack is no longer sealed aseptically. Too little punching causes problems for the consumer to open the package, as it is difficult to open the composite package at the location of the attached closure.
  • Another pretreatment uses laser technology. With a laser beam, the circumference of the piece of composite pack ultimately to be pressed out or removed is weakened, so that, however, the tightness is still ensured by leaving the sealing foil intact. This pretreatment is complex and expensive.
  • the laser beam must be exactly matched to the laminate film, so that it weakens neither too weak nor too strong.
  • the laminate films have certain tolerances in terms of production due to their production, adjusting them both for punching and for weakening by means of laser also proves to be problematic. Either way, expensive machines and equipment are needed.
  • pretreatments must be made at the exact location of a laminate film, and the plastic closures must then be placed precisely over these pre-treated areas. To ensure all this, much technical effort is required, which is correspondingly costly.
  • a major disadvantage of the conventional solutions is that after the first pivoting of the lid part of the closure must be opened by a separate manipulation, namely by pressing the sealing film means des.blossen finger.
  • this method of opening the sealing film is unhygienic and also the sealing film is regularly not clean and completely dissolved out of the clear area in the interior of the projecting edge. Rather, the sealing film is torn open somewhere in the middle region of the opening instead of along the clear opening of the closure and then pressed little targeted down into the interior of the composite package. On both sides, brews form, which protrude downwards into the interior of the composite package and interfere with the free and clean discharge of the content during pouring.
  • the known carton packs for corn flakes and similar products are therefore mere carton packs for a plastic bag located in the carton pack.
  • the carton pack To open, the carton pack must first be torn open by hand, so that it can later be opened on its top, by folding up the folded-over edges or tearing the pack along a perforation. Only then you can grab the plastic bag inside, pull out something and cut with a pair of scissors or a knife the bag at a corner. The content is now distributed by tilting and gently shaking the carton pack, but this is done relatively unchecked. Once such a package is opened, it can not be closed properly.
  • Desirable here would be a closure with a discharge opening of sufficient size, that is with at least about 10cm 2 to 20cm 2 light discharge opening, which would be re-closed.
  • the closure For contents that should be taken spoon-wise, the closure must have such, which means possibly even greater clear width or discharge opening so that can be driven with a tablespoon or a special portioning spoon through the discharge opening to the inside and spoon portions can be removed from the content ,
  • Such a closure would then be suitable for, for example, composite packagings and simple carton packs of all kinds of granular and powdery products, such as milk powder, beverage supplements, rice, flour and products of similar consistency from the food and non-food sectors. Because the tightness of grained goods is easier to achieve, much thinner laminates can be used than for liquid packages, and the composite packages are also adequate easier to tear open.
  • the known plastic closures are not able to fully satisfy even in various other respects.
  • the pouring spout of the shoots is often not very favorably shaped, so when the pouring is done, liquid on the outside of the beak runs downwards and then runs down over the composite pack. This spill spill is very annoying because often the whole front of the composite package becomes contaminated.
  • the lid part of many conventional closures is also not reliably held by itself in the open position of the lid, so that the lid slowly zuschwenkt due to the material stresses in the hinge between the lid and base again and disturbs the pouring jet, unless one holds the lid part consciously in open position with one hand.
  • one hand is needed to hold the composite package and pour it out, while the other hand holds about a glass to pour into. Then there is no hand free to hold open the lid part and with the pouring hand you can only cumbersome hold the lid in its open position at the same time.
  • the conventional pourer closures on little user-friendly guarantee devices by means of which the first opening, that is, the first-time pivoting of the closure Oberteifs should be guaranteed.
  • a tamper-evident band has to be torn away which has to be grasped with two fingers. In practice, this often proves to be difficult. For example, if the user has treated his hands with a hand cream or sun cream, he will find it difficult to tear away the guarantee band while his fingers are greasy. Opening the closure with gloves is certainly not possible.
  • the resealing is not solved satisfactorily, because the closures are not sufficiently tight after the closing of the lid part.
  • the spout closure in a special design should also have a secure first-hole guarantee, but the closure should still be able to open easily for the first time.
  • the closure should also ensure that the lid part is reliably held by itself in its open or closed position. Finally, he should ensure the pouring without tightening the pouring jet on the outside of the spout beak and allow a tight reclosure after use.
  • a flap closure for composite and carton packs for the automatic opening of the package by the opening of the closure lid consisting of a frame-like base element, which is DINschweiimen with its flat bottom on a composite package or carton package or réelleleimen and a circumferential, after upwardly projecting projection for forming an outlet spout which is open on the inside, as well as a cover which is pivotally mounted on this base element and closes the spout formed by it, for opening and closing again on the base element, wherein a pivotable element is provided on the inside of the projection extends on the base member mounted tongue, and wherein this flap closure is characterized in that acting between tongue and cover Constraint means are present, by means of which the tongue is forcibly by opening the lid under cutting or tearing and swinging a lying below her pack piece in opposite pivot to the lid down, that is, when seen from the side of the lid pivots clockwise, the Turn the tongue counterclockwise.
  • FIG. 1 initially shows only the basic element 1 to a flap closure as the first of two plastic molded parts.
  • This basic element 1 here forms an approximately rectangular frame, which is welded or glued with its underside 2 on a composite package or on a carton pack or glued.
  • the basic element 1 forms an upwardly directed projection 4, which in principle forms a spout or discharge nozzle.
  • In the front area of this frame is formed in a spout beak 31 with sharp tear-off edge 32.
  • the inside of the frame remains free and forms the clear passage cross section 6 of the spout formed by the frame.
  • this has two bearing bushes 16, 17 on each of the inner sides of the projection 4 on both sides. These are intended to accommodate pivot pins, as will become clear later.
  • the bearing bushes are U-shaped, that is designed to be open on one side.
  • the front bearing bushes 16 are thereby excluded from the bottom 2 of the base element 1 ago, and directed at an angle of approximately 45 ° relative to the underside of the base member 1 obliquely upwards and forwards.
  • Just behind these bearing bushes 16 close the bearing bushes 17, which are excluded from the base element 1 from above, also in an angle of approximately 45 ° relative to the top of the base element 1, but directed obliquely downward and forward.
  • a sealing lip 35 may be formed, which projects beyond the inclined surface 34 to the front. This sealing lip may be molded from the same material and thus integrally connected to the base member 1, but also be sprayed with a second injection component subsequently.
  • the FIG. 2 shows as a second molded part of the flap closure a tongue 7 and a lid 5, which forms a swing-flap.
  • the tongue 7 has a semicircular front end and at the tongue edge a downwardly projecting sharp blade 28 is formed, which forms a downwardly projecting piercing tip 29 at the tip of the tongue.
  • This sharp blade 28 is formed by a downwardly projecting edge on the tongue, which can be strutted for reinforcement on the inside with ribs against the underside 15 of the tongue plate.
  • the tongue 7 opens into a pivot shaft 11 whose diameter corresponds approximately to three times the thickness of the tongue plate.
  • the upper side 13 of the tongue 7 runs tangentially into the pivot shaft 11.
  • the pivot shaft 11 projects beyond the tongue plate on its underside with about two-thirds of its diameter.
  • the pivot shaft 11 is also slightly longer than the width of the tongue 7 dimensioned so that it towers the same on both sides slightly.
  • the towering stubs form pivot pins which can be inserted from below into the already described bearing bushes 16 on the base element 1.
  • the above-described, downwardly projecting edge of the tongue 7, which forms a blade 28, can be designed to be as high as the dimension of the diameter of the pivot shaft 11.
  • the lid 5 is shown here. He has on its rear side a pivot shaft 10, and like the tongue 7, the top 12 of the lid 5 runs tangentially into the pivot shaft 10 inside.
  • the thickness or thickness of the cover plate also measures about 1/3 of the diameter of the pivot shaft 10, which is of the same diameter as the pivot shaft 11 of the tongue 7.
  • the swivel shafts 10,11 may be made partially hollow from below for injection-technical reasons, for example by consisting of a series of spaced-apart diameter discs, which are interconnected by a thin outer wall of the shaft.
  • frictional means 8 are present, which ensure that the tongue 7 is forcibly pivoted by opening the lid 5 by cutting or tearing and swinging a lying below her pack in opposite direction to the lid 5 downwards.
  • These adhesion means 8 are realized here by a drawstring 9.
  • the tongue 7 is in fact connected via a drawstring 9 with the cover 5, wherein this is performed as follows: With its one end the drawstring 9 is attached to the underside of the tongue 7 or formed directly on this. It is then rooted along the corner which forms the pivot shaft 11 along the underside of the tongue 7 with the same and from there the tension band 9 is guided around the pivot shaft 11 to the rear and then up and on the underside of the lid 5 with the pivot shaft 10th molded, for example, along the corner between the pivot shaft 10 and bottom cover.
  • form tongue 7, drawstring 9 and cover 5 is a one-piece molded part.
  • the drawstring 9 may also be guided through a slot in the tongue plate, which extends along the formed on the tongue bottom corner between the pivot shaft 11 and tongue bottom.
  • the slot may have approximately a downwardly tapering cross-section, and the Glasbandende is then provided with a wedge-shaped in cross-section bead. It can be inserted through the slot from below. Afterwards, a wedge-shaped strip, which is wedge-shaped in profile, is clipped into the slot next to the bead, so that the drawstring is traction-locked in the slot. On the underside of the tongue exits the drawstring and is then guided around the pivot shaft 11 and ends at the bottom 14 of the lid 5. There it is formed in the corner and along the same, from the bottom 14 of the lid 5 with the pivot shaft 10 of the lid 5 is formed.
  • the piercing tip 29 on the blade 28 first pierces the packing material running underneath, and afterwards the blade 28 continues to cut from this hole, so that when the tongue 7 is swiveled out, the piece of packing material below it is removed from the packaging cut out and folded down, as will be described in more detail.
  • the pivoting forces of the tongue 7 for cutting out and folding down the lying under the tongue 7 pack can be very significant, because the tensile strength of a thin plastic drawstring 9 is very high and the reaction forces are absorbed by the pintle, which can absorb considerable shear forces ,
  • FIG. 3 shows a detail on the base element 1, namely the bearing bushes 16,17 for the pivotal mounting of the tongue 7 and the lid 5 in an enlarged view. Shown is a rear corner of the base element 1 of the FIG. 1 , namely the section A in FIG. 1 , It can be seen particularly well the U-shaped bearing bushes 16,17.
  • the front bearing bushes 16 serve to receive the pivot pin of the pivot shaft 11 on the tongue 7. It is only one bearing bush 16 visible here, while the other, opposite and mirror image arranged is not visible.
  • These bearing bushes 16 are excluded from the bottom 2 of the base element 1 ago, and directed at an angle of approximately 45 ° relative to the bottom 2 of the base member 1 obliquely upwards and forwards.
  • a sealing lip 35 may be formed, which projects beyond the inclined surface 34 forward and sealingly abuts against the pivot shaft 10 of the lid 5 used.
  • This sealing lip 35 may be injection molded from the same material or molded from a second, rubber-elastic injection component.
  • FIG. 4 shows in a schematic side view how the lid 5 and the tongue 7 are inserted into the base element 1.
  • the pivot pin of the pivot shaft 10 of the lid 5 come to rest in the bearing bushes 17 and the pivot pin of the pivot shaft 11 on the tongue 7 come to lie in the bearing bushes 16.
  • the tongue 7 and the lid 5 are integrally connected to each other via the drawstring 9, the tongue 7 is first from the top with the tip ahead and rotated relative to the base member 1 by 90 ° passed through the base member 1 and then turned back by 90 ° and still in a vertical position to the base element, the two-sided bolt stubs of their pivot shaft 11 are inserted from below into the corresponding bearing bushes 16 on the base element 1.
  • the drawstring 9 is not stretched with the lid almost swung open and allows the cover 5 hanging on this drawstring 9 to be moved into its correct position and the stud stubs of its pivot shaft 10 into the corresponding bearing bushes 17 on the basic element 1 can be used.
  • FIG. 5 shows the flap closure in the assembled state, with base element 1, tongue 7 and cover 5, mounted on a composite package 3.
  • the lid 5 is completely closed, that is, the flap formed by it is pivoted down to the base element 1, so is the tension band 9 is not stretched, but leads loosely around the pivot shafts on tongue 7 and cover 5 around.
  • the lid 5 is already raised or swung up a little and in this position, the tension band 9 is tensioned.
  • the tensile force acting on the drawstring 9 causes a torque on the tongue 7, so that it is pivoted counter to the pivoting direction of the lid 5 on the base element 1, as will be described in more detail below.
  • FIG. 6 the flap closure described when pivoting the lid 5 and the flap formed by it is shown.
  • the lid 5 When the lid 5 is pivoted open as shown by the base element 1, this causes at its Bottom 14 fastened or molded drawstring 9 due to the geometric arrangement of the pivot shaft 10 on the cover 5 a train on the drawstring 9.
  • the drawstring 9 is guided around the pivot shaft 11 at the rear of the tongue 7 as described and attached to the underside or molded.
  • the tensile force of the tension band 9 generated by the pivoting of the lid 5 generated as a result of the pivot shaft 11 around which it is guided, at the same a torque which is transmitted to the integrally formed on the pivot shaft 11 tongue 7.
  • the tongue 7 is pivoted about the pivot shaft 11 downwards.
  • the tongue 7 pivots in the opposite direction, that is in the FIG. 6 counterclockwise down.
  • the flap closure is welded or glued onto a composite package or carton pack
  • the piercing tip 29 pierces the package at the very front of the tongue tip
  • the blade 28 cuts along the tongue edge the piece of packaging material lying beneath the tongue 7 out of the composite material
  • this cut-out piece of packaging material is pivoted by the down-waving tongue 7 down.
  • the cut-out piece of packaging material remains pivoted downward and therefore the clear cross-section of the closure is reliably released for pouring or pouring out a package contents.
  • the closure can also be designed so large that a dining or portioning spoon can be passed through it, it is also possible to remove the contents of the pack optionally with a portioning spoon from the pack.
  • reaction forces act on the base element 1, which pull it away from the composite packing. Therefore, if necessary, the base element may consist of a much wider frame, so that a larger adhesive or welding surface is formed on its underside, and thus the acting reaction forces can be reliably absorbed without the frame being torn away from the package.
  • FIG. 7 shows a further developed variant of the flap closure for a two-stage tearing and swinging down a piece of packaging.
  • the tongue 7 in the front region has a part 20 which is connected to the rear region 18 only via a film hinge 19 which extends transversely over the tongue 7.
  • This front part 20 is therefore pivotable downwards relative to the rear region 18 of the tongue 7.
  • the front part 20 is provided along its edge with a blade 28 which projects beyond the front part 20 and is formed at the tip of the tongue into a piercing tip 29.
  • the blade 28 may be braced by means of radially extending ribs opposite the underside of the tongue 7, so that it has an increased stability.
  • the tongue 7 has a recess 23.
  • a tension band 22 is formed, which leads from there beyond the film hinge 19 also to the rear and then passed through the recess 23 upwards on the top of the tongue 7.
  • This drawstring is indeed made of the same material as the whole closure. It is flexible due to its thinness and due to the material quality extremely strong load on train.
  • This drawstring 22 has at its end an upwardly curved barb 24 which extends over the entire width of the drawstring 22. As a counterpart to this drawstring 22 is located on the bottom 14 of the lid 5 also such a flexible and zugkraftstarkes drawstring 25.
  • the tension band 9 between the tongue 7 and the cover 5 is designed in its length so that it first flutters in a first phase of pivoting the lid 5 remains and only from a pivotal position of the lid 5 against tongue 7 of about 30 ° -45 ° generates a tensile force and thus only then the pivoting of the entire tongue 7 begins down.
  • a first phase of the pivoting of the lid 5 but rather only the drawstrings 22,25 act, due to the effective leverage forces with very high tensile force.
  • the cover 5 itself acts with its entire length as a power lever and the distance from its pivot axis to the point of contact of the drawstring 25 acts as a load lever.
  • this front part 20 can also pierce and cut a strong composite material, ie cut a semicircular cut along the blade 28 into the composite material.
  • the cover must be pivoted upwards by about 30 ° -45 °, and then the clawing of the two drawstrings 22,25 tears off for geometric reasons and the two drawstrings 22,25 then move away from each other. So that the Verkrallung tears off, the barbs 24,27 are shaped accordingly, so they keep safe at low raised pivot position of the lid 5, while they slide off after exceeding a certain pivotal position, because the angle at which the drawstring 25 and its barbs 27th for barbs 24 on the drawstring 22 is yes, with increasing pivoting of the lid 5 is increased.
  • FIG. 8 shows the lid 5 and the tongue 7 of the closure seen in a schematic view from the side, in the initial state with the lid closed 5. It can be seen how the drawstring 22 is formed with its barb 24 on the underside of the front part 20 of the tongue 7 and through the tongue 7 is guided upwards. The lid 5 is pivoted down to the tongue 7 and the barb 27 on the drawstring 25, which is formed on its underside 14, lies beyond the barb 24. The drawstring 9 between the two pivot shafts 11,10 on the other hand is loose, that is with some play between its end attachment points.
  • FIG. 9 now shows the lid 5 slightly pivoted up from the base element, that is also swung from the tongue 7, because the drawstring 9 remained loose up to this pivotal position and did not produce a train. Therefore, the tongue 7 is not yet pivoted down as a whole, however, was pulled by the train of the drawstring 25 on the underside of the lid 5, the drawstring 22 and because the tongue 7 can not move upwards because of the projecting edges 30 on the base element 1, was unique her front part 20 pivoted about the hinge axis 19 down, as indicated by the arrow.
  • the piercing tip 29 on the blade 28 on the front part thereby punctures the composite laminate running under the tongue 7 and, as the front part 20 of the tongue 7 is further pivoted down, a cut is cut along the blade 28 into the composite material. Once this position is reached, slide the barbs 24,27 of the drawstrings 22,25 from each other. At the same time meanwhile the tension band 9 between the pivot shaft 11 of the tongue 7 and the pivot shaft 10 of the lid 5 has been tightened. Now, if the cover 5 is further pivoted, so only the tension band 9 is effective and the tongue 7 is pivoted as a whole downwards.
  • the reaction force when pivoting the lid 5 acts on the pivot shaft 10, however, the pivot shaft 10 is thereby pressed only against their bearing bushes 16 in the base element 1 out and can not jump out of them.
  • the first phase of opening in which only the front part 20 of the tongue is pivoted downwards, is important for the piercing and tearing of the composite material, which is particularly critical. Once touched, the composite material is much easier to tear further.
  • FIG. 10 shows an alternative embodiment of the tongue 7 for a two-stage tearing of the pack.
  • the drawstring 22 is formed on the foremost portion 38 and leads from there under the entire front portion 20 of the tongue 7 and thereafter through the recess 23 on the top of the tongue 7.
  • the drawstring 22 acts in the manner already described with the drawstring 25 at the underside of the lid 5 together.
  • FIG. 11 shows this alternative embodiment of the tongue 7 together with the cover 5 in a schematic view seen from the side.
  • the starting position is shown, in which therefore the cover 5 rests on the tongue 7 when the closure is still closed and the drawstring 9 between the pivot shafts 10 and 11 is not yet taut.
  • the cover 5 is raised, pulls his drawstring 25 due to the clawing of his barb with that on the drawstring 22 the same back.
  • the drawstring 22 therefore pulls with its end the foremost portion 38 at the tip of the tongue to the rear. But because the section is not retractable, it deviates by pivoting about the hinge 40 down, as the in FIG. 12 is shown.
  • section 38 which acts as a load arm, favorable lever ratios result, whereby with the piercing tip 29 at section 38 a very large puncturing force can be exerted on the packing running beneath it so that it is pierced.
  • the regions 38, 37 and 36 continue to pivot downward by further pulling on the drawstring 22 by further pivoting of the lid 5, with the blades 28 formed on them tearing open the packaging material further from the onset of puncture or cut open.
  • the tension band 22 running underneath the regions 36, 37 and 38 ensures that only the foremost region 38 is necessarily swiveled first, afterwards the region 37 and finally the region 36.
  • FIG. 13 shows the situation after the further pivoting of the lid 5, when it is pivoted about 80 °.
  • the tongue 7, which was first pivoted from a pivotal position of the lid 5 of, for example, about 20 ° relative to the base element 1 because of the now streamlined drawstring 9 for the first time and is then pivoted exactly the same measure as the lid 5, therefore at a Swinging the lid 5 by 80 °, a swing down by 80 ° minus 20 °, so undergo a tilt of 60 °, as shown here.
  • the tongue 7 has further torn open the composite package 3 underneath it along the tongue edges and pivoted down below it.
  • the indicated angle is only an example.
  • the pivoting angle of the lid, from which the drawstring 9 is stretched, can be selected.
  • the pivot shafts 10,11 and associated bearing bushes 16,17 can be designed and dimensioned so that they develop a certain frictional force, which ensures that the lid 5 is held in the open or pivoted position. If the cover 5 is swung back in, the tongue 7 remains in the downwardly pivoted position. The drawstring 9 is simply rolled down. When re-swinging the lid 5, the tongue 7, if it has nevertheless been swung back slightly, again pivoted by the drawstring 9 completely down, in the position as shown here. The drip-proof seal of the closure is ensured by an elastic sealing lip 35, which is integrally formed on the attachment 33 on the base element 1 and is pressed from behind onto the smooth surface of the pivot shaft 10.
  • FIG. 15 shows an embodiment of a flap closure with alternative adhesion means 8, by means of which the tongue 7 by the unfolding of the lid 5 forcibly under cutting or tearing and swinging a lying below her pack piece in opposite sense of pivoting to the lid 5 is pivotally downwards.
  • These frictional means 8 here consist in that the pivot shafts 10,11 form gear racks via an axial section.
  • the pivot shafts 10,11 of the cover 5 and tongue 7 are shown schematically on the base member 1 in a cross section.
  • the tongue 7 with its pivot shaft 11 is inserted in the usual manner from below into the bearing bushes on the base element 1.
  • the pivot shaft 11 is formed at its two ends in pivot pins which the Tongue 7 projecting on both sides of a piece, while it is running in between, that is, over the entire width of the tongue 7, continuously as a gear rod.
  • the pivot shaft 10 of the lid 5 is provided in a similar manner with two-sided pivot pin, while it is provided almost over the entire width of the lid 5 with a toothing and forms a continuous gear rod.
  • the tongue 7 is inserted from below into the base element 1 and the cover 5 is inserted with its pivot shaft 10 from above into its bearing bushes on the base element 1.
  • the U-shaped bearing bushes are arranged obliquely to the base member 1 and are arranged slightly offset from each other, the serrations of the pivot shafts 11,10 can be brought into engagement with each other when inserting the pivot shafts in the bearing bushes. If the cover 5 is then pivoted open on the base element 1, the torque acting on the pivot shaft 10 is transmitted via the toothing to the pivot shaft 11 and thus to the tongue 7, which is correspondingly pivoted to the base element by the same pivoting force with which the cover 5 is pivoted upwards 1 is swung down while the pack breaks up and down. A large torque can therefore be applied because the teeth over the entire length of the pivot shafts is effective.
  • FIG. 16 shows a again alternative embodiment of the variant just described with pivot shafts, which form over an axial portion gear racks, but also allows a two-stage tearing and down pivoting of the tongue 7.
  • the pivot shafts 10,11 of the cover 5 and tongue 7 are shown schematically on the base member 1 in a cross section.
  • the lower part of the lid 5 is now but as in the embodiments according to the FIGS. 7 to 12 provided with a drawstring 25 and the tongue 7 with a swung-on front part 20 and at its bottom a molded there drawstring 22.
  • the drawstring is in turn guided by a recess 23 in the tongue 7 on the top and equipped with a barb 24. All elements are identical as with a flap closure, which in the FIGS.
  • the tongue 7 with its pivot shaft 11 is also here in the usual manner of used in the bottom of the bearing bushes on the base element 1.
  • the pivot shaft 11 is formed at its two ends in pivot pins which project beyond the tongue 7 on both sides a piece, while it is carried out therebetween, that is, over the entire width of the tongue 7, as a gear rod.
  • the pivot shaft 10 of the lid 5 is provided in a similar manner with two-sided pivot pin, while it is provided almost over the entire width of the lid 5 with a toothing. Unlike the execution after FIG.
  • the teeth on the pivot shaft 10 of the lid 5 is provided only over part of its circumference with a toothing, as in the FIG. 16 is shown.
  • the cover 5 with its pivot shaft 10 is inserted from above into its bearing bushes on the base element 1.
  • the pivot shaft 10 on the cover 5 is then initially with a region opposite the pivot shaft 11 of the tongue 7, where it has no teeth, but is blank. Only after a pivoting of the lid 5 by a certain angle of about 20 ° to 40 °, that is, after the drawstrings for the separate pivoting of the tongue front part 20 have entered into action, the teeth on the pivot shaft 10 engages in those on the pivot shaft 11 and causes the further pivoting of the lid 5, the pivoting down of the tongue 7 in the same pivoting measure.
  • FIG. 17 The teeth of the rack on the pivot shaft 10 of the lid 5 have intervened in those on the rack on the pivot shaft 11 of the tongue 7 and this was pivoted by the pivoting of the lid 5 in opposite pivoting down.
  • the tongue 7 When closing the lid 5, the tongue 7 is pivoted back into its original position, and when reopening the shutter, it is pivoted back down and pivots the lying below it, cut out of the packing material or torn tab down so that the spout exposed is.
  • the closure can be opened and remains open so that the composite packaging container can be grasped with one hand and its contents dispensed in a dosed manner as desired, while the other hand remains free or can hold about a glass or other container.
  • the closure is also easy to reclose by simply turning the cover 5 back on the base element 1 or pivoted.
  • the cover 5 can be designed so that it clicks sealingly on the base element 1 when pivoting down, for example, its edge is projecting downwards and can be placed over a slightly projecting edge on the base element 1.
  • the sealing lip 35 presses against the smooth surface of the pivot shaft 10 and ensures there a sufficient drip-proof seal.
  • a sealing band can be provided, which connects the top cover at the rear with the base element 1 in one piece and conceals the toothed pivot shaft 10 of the lid 5 and is tensioned in the closed state of the lid 5. Then, the cover 5 is integrally molded via this tape with the base member 1 and the tongue 7 with its toothed pivot shaft 11 then forms the second plastic injection part of the closure.
  • the FIG. 18 shows a variant of how the closure can be injected in one piece.
  • the basic element is divided on its rear side executed and the two rearwardly extending frame sides 44,45 backwards spread something apart, namely here by the angle 43.
  • the to be connected to the rear side of the base element two pieces 46,47 have a one-click end -Mechanik on, for example, on one side a barb 42, which can click into a corresponding shape in the opposite piece 46.
  • the lid 5 and the tongue 7, which are connected to each other via the drawstring 9, are then injected in one piece with the base element 1 in the position shown here.
  • the ends of the Swivel shafts 10,11 directly in front of the mouths of the bearing bushes and the outer edges of the pivot shaft end faces are connected via a plurality of fine material bridges 41 with the edges of the mouth of the bearing bushes.
  • the bearing bushes extend continuously through the frame 1 and open outside in the frame 1 with the holes 48,49. Thus, the bearing bushes can be removed from the outside by slide, which retract after spraying to the outside.
  • the material bridges 41 on the one hand By the material bridges 41 on the one hand, the integrity of the entire closure and on the other hand, the lid 5 and the tongue 7 is positioned relative to the base element 1, so that a later assembly by means of a robot is omitted, resulting in the separate spraying of the base member 1 on the one hand and the lid 5 with tongue 7 on the other hand would be necessary.
  • the only assembly step in this one-piece injection is that the two frame sides 44,45 of the base member 1 as shown in the direction of the two opposing arrows are pressed together.
  • the fine material bridges 41 break and the ends of the pivot shafts 10, 11 slip into the bearing bushes opposite to each other.
  • This closure is not only suitable for liquids, but especially for all types of bulk solids. Wherever things are packaged in paper or foil bags, such as flour, rice, corn, sugar, salt, etc., cardboard packaging can now be used, and this closure allows it to open easily, cleanly and safely, and safely again after use to close. If a guarantee closure is desired, such can be realized in a known manner, for example, by placing the cover 5 on the base element 1 with a visible ring held over predetermined breaking points during the first closure of the closure. The pivoting of the lid 5 is possible only after breakage of the predetermined breaking points, resulting in a Warö Stammsgarantie, because the closure is immediately apparent whether it has ever been opened or not.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Closing Of Containers (AREA)
  • Packages (AREA)

Claims (10)

  1. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement du couvercle de fermeture, constituée d'un élément de base en forme de cadre (1) qui est prévu avec sa face inférieure plane (2) pour le soudage ou pour le collage sur un emballage composite ou sur un emballage en carton (3) et qui présente une saillie périphérique (4) dépassant vers le haut afin de former une tubulure de déversement ouverte à l'intérieur, ainsi que d'un couvercle (5) monté avec faculté de pivotement sur cet élément de base (1) et fermant la tubulure de déversement formée par ledit élément pour l'ouverture par relèvement et pour la re-fermeture par rabattement sur l'élément de base (1), fermeture dans laquelle une languette (7) montée avec faculté de pivotement sur l'élément de base (1) s'étend sur la face intérieure de passage (6) de la saillie (4), caractérisée en ce que des moyens de coopération de forces (8) agissant entre la languette (7) et le couvercle (5) sont présents, au moyen desquels la languette (7) peut être pivotée vers le bas par le relèvement du couvercle (5), de manière forcée sous l'ouverture par coupe ou par déchirement et sous le pivotement vers le bas d'une pièce d'emballage placée sous ladite languette dans le sens de pivotement contraire par rapport au couvercle (5), c'est-à-dire que, en regardant depuis le côté, le couvercle (5) est pivoté vers le haut dans le sens des aiguilles d'une montre et la languette (7) est pivotée vers le bas dans le sens contraire des aiguilles d'une montre.
  2. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon la revendication 1, caractérisée en ce que le couvercle (5) est monté avec faculté de pivotement vers le haut sur l'élément de base (1) au moyen d'un arbre de pivotement (10) et y est maintenu, et en ce que la languette (7) est montée avec faculté de pivotement vers le bas sur l'élément de base (1) au moyen d'un arbre de pivotement (11) décalé parallèlement à cela en direction de la plage de pivotement du couvercle (5) et y est maintenue, et en ce que les moyens de coopération de forces (8) sont constitués d'une bande de traction (9) qui est guidée par sa une extrémité, fermement ou de manière amovible à partir de la face inférieure de la languette (15), autour de l'arbre de pivotement (11) sur la languette (7) et qui est fixée ou conformée par son autre extrémité sur la face inférieure du couvercle (14), de telle sorte que, lorsque le couvercle (5) est pivoté vers le haut, la languette (7) est pivotée vers le bas en vertu de la bande de traction (9) dans le sens de pivotement contraire par rapport au couvercle (5).
  3. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon la revendication 2, caractérisée en ce que la face supérieure (12) du couvercle (5) se transforme tangentiellement dans l'arbre de pivotement (10) de celui-ci et en ce que la face supérieure (13) de la languette (7) se transforme tangentiellement dans l'arbre de pivotement (11) de celle-ci, fermeture dans laquelle la face inférieure du couvercle (5) vient reposer sur l'élément de base (1) dans l'état pivoté vers le bas, bien à plat ou approximativement sur la face supérieure de la languette (7), et en ce que la bordure de la languette (7) forme une lame affûtée (28) qui dépasse vers le bas, sachant qu'une pointe à percer dirigée vers le bas (29) est ménagée sur la pointe de languette.
  4. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon l'une ou l'autre des revendications 1 et 3, caractérisée en ce que le couvercle (5) est monté avec faculté de pivotement sur l'élément de base (1) au moyen d'un arbre de pivotement (10) et y est maintenu, et en ce que la languette (7) est monté avec faculté de pivotement sur l'élément de base (1) au moyen d'un arbre de pivotement (11) décalé parallèlement à cela en direction de la plage de pivotement du couvercle (5) et y est maintenue, et en ce que les moyens de coopération de forces (8) sont constitués de dentures qui se prennent les unes dans les autres dans les arbres de pivotement (10,11), de telle sorte que celles-ci forment chacune une tige à roue dentée sur un tronçon axial.
  5. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon l'une des revendications précédentes, caractérisée en ce que le couvercle (5) est monté avec faculté de pivotement sur l'élément de base (1) au moyen d'un arbre de pivotement (10) et y est maintenu, et en ce que la languette (7) est montée avec faculté de pivotement sur l'élément de base (1) au moyen d'un arbre de pivotement (11) décalé parallèlement à cela en direction de la plage de pivotement du couvercle (5) et y est maintenue, par le fait que les arbres de pivotement (10 ; 11) sont conformés sur le côté terminal comme goujons de palier pivotants qui peuvent être utilisés sur l'élément de base (1) dans des douilles de palier (16 ; 17) ménagées dedans et ouvertes sur un côté.
  6. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon l'une des revendications précédentes, caractérisée en ce que la languette (7) présente dans la zone avant une partie avant (20) pouvant être pivotée vers le bas autour d'une charnière à film (19) qui s'étend transversalement sur la languette (7), une bande de traction (22) étant guidée à partir de la face inférieure (21) de ladite partie avant de part et d'autre de la charnière à film (19) à travers un évidement (23) dans la languette (7) sur la face supérieure de cette dernière et présentant sur l'extrémité un ardillon dirigé vers le haut (24), fermeture dans laquelle la bande de traction (22) coopère avec une bande de traction (25) conformée ou fixée sur la face inférieure (14) du couvercle (5), laquelle s'étend à proximité de l'axe de pivotement de la face inférieure de couvercle (14) en direction de la pointe de couvercle (26) et forme sur le côté terminal un ardillon dirigé vers le bas (27), et en ce que les deux ardillons (24 ; 27) des bandes de traction (22 ; 25) se prennent l'un dans l'autre pendant le pivotement vers le bas du couvercle (5), de telle sorte que la partie avant (20) de la languette (7) peut être pivotée vers le bas sur celles-ci autour de la charnière à film (19) pendant le pivotement vers le haut du couvercle (5) suite à la liaison par coopération de forces des bandes de traction (22 ; 25) et de telle sorte que les ardillons (24 ; 27) des bandes de traction (22 ; 25) se décliquettent l'un de l'autre au plus tard en cas d'une position de pivotement du couvercle (5) de 45° par rapport à l'élément de base (1).
  7. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon l'une des revendications précédentes, caractérisée en ce que l'élément de base (1) d'une part, ainsi que le couvercle (5) avec languette (7) et bande de traction (9) reliant ceux-ci d'autre part, sont injectés en communauté en un seul tenant, par le fait que l'élément de base (1) est exécuté avec une division sur le côté arrière, de manière à former deux parties pouvant être encliquetées conjointement (46 ; 47), et en ce que, dans la position d'injection, les extrémités des arbres de pivotement (10 ; 11) du couvercle (5) et de la languette (7) sont reliées aux embouchures des douilles de palier opposées sur l'élément de base (1) par des ponts de matière fins (41), de telle sorte que les arbres de pivotement (10 ; 11) peuvent être pressés jusque dans les douilles de palier sous la rupture des ponts de matière (41).
  8. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon la revendication 4, caractérisée en ce qu'au moins une des tiges à roue dentée n'est dentée que sur une partie de sa circonférence, de telle sorte que les deux tiges à roue dentée se prennent l'une dans l'autre seulement à partir d'une certaine position de pivotement du couvercle (5) par rapport à l'élément de base (1).
  9. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon l'une des revendications précédentes, caractérisée en ce que les douilles de palier (16 ; 17) sur l'élément de base (1) sont formées par des évidements en forme de « U » et dans laquelle les douilles de palier (16) sont évidées sur l'élément de base (1) depuis le bas en biais vers l'avant pour les goujons de palier pivotants de l'arbre de pivotement (11) de la languette (7), et en ce que les douilles de palier (17) sont ensuite évidées sur l'élément de base (1) depuis le haut en biais vers l'avant pour les goujons de palier pivotants de l'arbre de pivotement (10) du couvercle (5) derrière les douilles de palier (16), les douilles de palier (16 ; 17) formant des douilles cylindriques creuses dont les parois de cylindre s'étendent sur 180° ou un peu plus.
  10. Fermeture à volet rabattant destinée à des emballages composites et en carton pour l'ouverture automatique de l'emballage suite au relèvement selon l'une des revendications précédentes, caractérisée en ce que des saillies (30) dépassant latéralement vers l'intérieur sont conformées sur l'élément de base (1), lesquelles dépassent de la languette (7) dans la zone derrière sa partie avant (20) et forment chacune une butée pour sa face supérieure, de telle sorte que la languette (7) ne peut être pivotée que vers le bas dans l'élément de base (1).
EP05700372A 2004-02-18 2005-02-16 Fermeture a rabat pour emballages composites et en carton, a ouverture automatique de l'emballage par depliage Expired - Lifetime EP1716051B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05700372T PL1716051T3 (pl) 2004-02-18 2005-02-16 Zamknięcie klapkowe dla opakowań kompozytowych i kartonowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2562004 2004-02-18
PCT/CH2005/000089 WO2005077769A1 (fr) 2004-02-18 2005-02-16 Fermeture a rabat pour emballages composites et en carton, a ouverture automatique de l'emballage par depliage

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EP1716051A1 EP1716051A1 (fr) 2006-11-02
EP1716051B1 true EP1716051B1 (fr) 2008-08-27

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US (1) US7934616B2 (fr)
EP (1) EP1716051B1 (fr)
AT (1) ATE406316T1 (fr)
BR (1) BRPI0507750B1 (fr)
DE (1) DE502005005189D1 (fr)
ES (1) ES2313272T3 (fr)
PL (1) PL1716051T3 (fr)
RU (1) RU2369542C2 (fr)
WO (1) WO2005077769A1 (fr)

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DE102005031815A1 (de) * 2005-07-06 2007-01-11 Sig Technology Ag Wiederverschließbares Ausgießelement mit einem Deckel für Getränkepackungen
DE102005037609A1 (de) * 2005-08-05 2007-02-15 Sig Technology Ag Wiederverschließbares Ausgießelement für Karton/Kunststoff-Verbundpackungen
AT505756B1 (de) * 2008-02-21 2009-04-15 Christian Dipl Ing Bratsch Deckel eines behalters
AT507950B1 (de) * 2009-02-23 2011-07-15 Xolution Gmbh Deckel eines behälters
US20140319184A1 (en) * 2009-10-08 2014-10-30 Mesut YAKICI Liquid package cover with air duct
FR2956463B1 (fr) * 2010-02-16 2012-06-29 Biomerieux Sa Dispositif a clapet, mono-corps, moule par injection de materiau elastique
PL2409616T3 (pl) * 2010-07-20 2013-08-30 Wiberg Besitz Gmbh Pojemnik na produkty
US20120223074A1 (en) * 2011-03-04 2012-09-06 Porter Jr Charles W Apparatus for maintaining freshness in a packaged product
USD677158S1 (en) 2011-03-11 2013-03-05 The Quaker Oats Company Closure
USD662412S1 (en) 2011-04-01 2012-06-26 The Quaker Oats Company Carton blank
EP2897874B1 (fr) * 2012-09-21 2017-04-12 Necat Emircan Mode de réalisation de couvercle vissé possédant un appareil de découpe de feuille et de pliage sur la partie intérieure dans les emballages en carton aseptiques pour liquide
US9296510B2 (en) * 2013-02-01 2016-03-29 Boston Scientific Scimed, Inc. Tear tab closure strip
US9248469B2 (en) 2013-06-27 2016-02-02 Boston Scientific Scimed, Inc. Closure seal
GB201314207D0 (en) * 2013-08-08 2013-09-25 Obrist Closures Switzerland A Dispensing Cap
US9630741B2 (en) 2014-09-29 2017-04-25 Sonoco Development, Inc. Recloseable paperboard carton with thermoformed closure
USD809918S1 (en) * 2015-12-15 2018-02-13 Dart Industries Inc. Flip top cap for lid
DE102020211667A1 (de) 2020-09-17 2022-03-17 Refresco Deutschland Gmbh Klappöffnungshilfe
TWI865149B (zh) * 2023-11-02 2024-12-01 宏碁股份有限公司 包裝結構

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WO1995033656A1 (fr) * 1994-06-02 1995-12-14 Tetra Laval Holdings & Finance S.A. Dispositif d'ouverture de l'element de fermeture d'un bec verseur pour recipient a liquide
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Publication number Publication date
RU2369542C2 (ru) 2009-10-10
ATE406316T1 (de) 2008-09-15
EP1716051A1 (fr) 2006-11-02
ES2313272T3 (es) 2009-03-01
DE502005005189D1 (de) 2008-10-09
US7934616B2 (en) 2011-05-03
RU2006131623A (ru) 2008-03-27
PL1716051T3 (pl) 2009-01-30
BRPI0507750A (pt) 2007-07-10
WO2005077769A1 (fr) 2005-08-25
BRPI0507750B1 (pt) 2017-06-13
US20070131689A1 (en) 2007-06-14

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