WO2004110882A1 - Tightly sealed pouring neck having a single use tear-off disk for composite packings and method for installing the same - Google Patents

Tightly sealed pouring neck having a single use tear-off disk for composite packings and method for installing the same Download PDF

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Publication number
WO2004110882A1
WO2004110882A1 PCT/CH2004/000350 CH2004000350W WO2004110882A1 WO 2004110882 A1 WO2004110882 A1 WO 2004110882A1 CH 2004000350 W CH2004000350 W CH 2004000350W WO 2004110882 A1 WO2004110882 A1 WO 2004110882A1
Authority
WO
WIPO (PCT)
Prior art keywords
projection
composite
edge
pouring spout
underside
Prior art date
Application number
PCT/CH2004/000350
Other languages
German (de)
French (fr)
Inventor
Mario Weist
Original Assignee
Sig Technology Ltd.
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 Ltd. filed Critical Sig Technology Ltd.
Publication of WO2004110882A1 publication Critical patent/WO2004110882A1/en

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B29C65/568—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
    • B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7162—Boxes, cartons, cases

Definitions

  • This invention relates to a dense, so initially sealed spout for multi-packs of all types, which can be mounted on the pre-punched hole of a multi-pack and is also equipped with a tear-off washer for its unique opening.
  • the invention also relates to a method for mounting such a nozzle on the hole pre-punched in a composite package.
  • liquid packs in the form of such composite packs made of film-coated paper are particularly conceived, in which, for example, milk, fruit juices, all kinds of non-alcoholic drinks or liquids in general are also packaged from the non-food sector, for example all kinds of concentrates or oils for technical purposes.
  • the pouring spout can also be used for multi-packs in which bulk goods such as sugar, semolina or all kinds of chemicals and the like are stored or packaged.
  • Composite packaging material is a lami- natstoff, for example around a paper or cardboard web coated with plastic such as polyethylene and / or aluminum. Common volumes of such packs range from 2OcI to 2 liters and more.
  • Closures are conventionally welded or glued to such composite packs at weakened or preprocessed locations.
  • the composite package is weakened there, except for the sealing film inside its laminate, along the inner edge of the socket to be welded on, either by means of mechanical punching or by means of a laser beam, and the closure is welded or glued to the edge-weakened area with the clear width of its spout socket ,
  • a washer which corresponds to the inside clear width of the connecting piece to be welded on, can be completely punched out of the composite laminate, after which the hole formed is again covered with a sealing film.
  • closures with a round threaded connector and screw-on cap lid as well as closures with a rectangular spout with a hinged cover that can be swiveled down and clicked on tightly.
  • closures made of plastic are known in various designs. They always form a pouring spout with a shoulder projecting radially from its lower edge, which forms a closing flange on this pouring spout.
  • Such a closure is always flanged onto the composite package by being welded or glued to the composite package with the underside of its projecting edge, that is to say with the underside of its flange.
  • the free passage at the lower end of the nozzle is then closed by the composite packaging laminate or its intact sealing film or by the sealing film which is subsequently glued via the punched-out hole. It is and will always be the composite packaging itself, which guarantees its tightness, and not the opened seal, which initially leaves the composite packaging intact in terms of its tightness.
  • the continuous foil-reinforced laminate underneath the welded socket or the Adhesive sealing film must therefore be cut open, torn open or pressed away so that the passage is cleared and the liquid or bulk material can be poured out or poured out of the container through the nozzle, for which purpose closures offer various solutions, but these are more or less expensive are in construction and execution.
  • edge-weakened laminate pane or sealing film is torn in many versions to open the composite package by simply pressing it down with a finger at an undefined break point, and the two resulting laminate or film tabs are then pivoted sideways downwards.
  • the remaining edge is frayed and shreds of paper or foil protrude into the passage, which should actually be exposed.
  • scraps often also protrude down into the container and may block the path for the air flowing into the container from outside when pouring or pouring out, or they even protrude into the path of the outflowing liquid jet or the discharged goods. In the case of liquids, this often leads to an unpleasant bubbling, gushing pouring out of the liquid.
  • the known closures are also designed to be reclosable, that is, they include a lid which can be sealingly placed or screwed onto the connecting piece.
  • reclosability is not required for many applications.
  • a reclosable closure is not necessary for multi-packs that contain only a single application portion, be it a powder, a concentrate or a drink portion. A simple pouring spout would suffice here, but it is initially tight and could then be opened easily and cleanly.
  • This pouring spout should be particularly simple in construction and design and correspondingly inexpensive to manufacture and assemble.
  • it should be easy to install and seal with great reliability on a composite package.
  • this initially tight pouring spout should be easy and clean to open, so that afterwards a bubbler-free, clean and dosed pouring of liquid contents of the package is ensured and the pouring also without dripping and without adhesive after-running of liquid on the outside of the pouring spout. Stutzen, that is, without spilling, is interruptible.
  • a pouring spout for multi-packs consisting of a flat bottom with upwardly projecting from its edge, and from the bottom and set back from the bottom of the bottom arranged downwardly projecting elastic projection with at its lower end funnel-shaped outward curved edge area, a thin point in the floor extending linearly along the edge of the inner clear cross-section of the downwardly extending projection, and a grip tab being formed on top of this area of the floor.
  • the object is further achieved by a method for assembling a pouring spout for composite packs according to this claim, in which the pouring spout in the course of its assembly in the pre-punched hole of a composite pack with elastic deformation of its downwardly projecting projection with it funnel-shaped outward curved edge area of a diameter that is just larger than the hole to be fitted is pressed into this pre-punched hole, whereby the downwardly projecting cantilever deforms back into its initial position after passing through the hole edge and afterwards when the pouring spout is welded as a flanged edge with the underside of the Composite material is welded, while the underside of the floor is sealed to the top of the composite laminate outside the projection.
  • this pouring spout for composite packs is shown in different views, and in a further figure also schematically shows its assembly on a pre-punched hole matching this pouring spout in a composite pack.
  • this pouring spout is described in detail below and its function is explained and explained. It also explains how it is assembled on a composite package.
  • Figure 1 The tight pouring spout viewed in a perspective view obliquely from above;
  • Figure 2 The tight pouring spout viewed in a perspective view obliquely from below;
  • Figure 3 The dense spout in a perspective cross section along the line A-A in Figure 1 considered;
  • Figure 1 shows the sealed pouring spout in a perspective view, the view falling obliquely from above onto the spout.
  • This pouring spout consists of a floor 1 rectangular in shape with rounded corners, and from the edge 18 of which protrudes upwards.
  • the projection 2 is inclined at an oblique angle to the front and forms a pouring lip 3.
  • This pouring lip -Lip 3 runs into a sharp edge 4, which is important for the clean pouring out of a liquid content, and in particular for the pouring process also being able to be stopped and no dripping possible because the liquid jet from the sharp edge 4 is interrupted cleanly without having to act Adhesive forces liquid can run down along the outside of the pouring lip 3 and thus would spill the pouring spout and also the composite packaging equipped with it.
  • a groove 5 which runs around at some distance from the projection 2 and which is delimited on its outside by a vertical side face 6 and on its inside by an obliquely angled side face 7 inclined away from the groove.
  • This groove 5 is so deep that it leaves only a thin bottom, which forms a thin point within which an easily removable tear-off disk 8 is enclosed. Nevertheless, the bottom 1 remains entirely intact on its underside and is therefore liquid-tight. So that this tear-off disk 8 can later be torn out and removed more easily, a grip tab 9 is formed on its front area, which extends upwards and can be easily gripped with the thumb and index finger of one hand. To increase its grip, it can be grooved in the upper edge region or have an edge 10 which projects on both sides or here only on one side, which is realized here with the recess 11 near the edge. On its rear side, the tear-off disk 8 is designed here with an extension 12 which extends backward in the manner of a tongue.
  • This rear edge area accommodates tearing away. If the handle tab 9 is lifted by the user, the front thin point 13, here curved, first breaks or tears in front of the handle tab 9. But then either the rearmost section 14 of the thin point immediately breaks, while the two upstream thin points 15 and 16 initially act as film hinges act, so that the initially 'genförmige extension 12 to act as a load arm and the burst disk 8 of these film hinges to the grip tab 9 as a power arm, or vice versa break out the two thin portions 15 and 16 by the rearward thin places region 14 turns out to be stronger.
  • the tongue-shaped extension also acts as a load arm and the tear-off disk from the rearmost thin point 14 to the grip tab 9 acts as a force arm.
  • This pouring spout which in the state shown here has a liquid-tight base 1 with this shaped tear-off washer 8, is welded into a composite packing via a pre-punched hole, so that the tear-off washer 8 comes to lie congruently over the hole.
  • this dense spout is shown in a perspective view viewed obliquely from below.
  • Somewhat offset inwards extends from the underside of the base 1 and is molded onto it a downwardly projecting elastic projection 17.
  • This projection 17 is aligned with its inner edge 19 exactly with the vertical side wall 6 of the groove 5, which is removed from the top 1 on the upper side, with the exception of the rear region of the tear-off disc 8.
  • the inner edge 19 is only aligned with the vertical side wall of the thin section 14, while the areas to the left and right of the tongue-shaped extension 12 are surrounded by the projection 17 at the bottom.
  • This downwardly projecting, due to its thin design elastically deformable projection 17 is provided on its outer edge with a bead-like reinforcement 20, the cross section of this bead can be semicircular or angular, for example triangular.
  • the lower edge area of the projection 17 is slightly tichterföi mig outward curved, so that the outer circumference of the edge is definitely wider than the circumference of the projection 17 in its area facing the ground.
  • the underside of the bottom 1 is provided with a similar or the same bead 21, which surrounds the projection with a little distance.
  • the projection 17 has in its lower edge area a funnel-shaped outwardly curved edge 23 with an outer bead 20, which in the example shown has a triangular cross section, but can also be semicircular or rounded.
  • the bead 21 on the underside of the base 1 also has a triangular cross section here, but its cross section can also be semicircular or rounded.
  • These beads 20, 21 serve as a material reserve for the later welding of the pouring spout with a composite packing. It is the material of these beads 20, 21 that is liquefied in the course of the welding and therefore binds intimately to the opposite weldable plastic film material of the composite packaging laminate.
  • the composite laminate is supported from below outside the perforated area by a support plate, which is not shown, however. It can be seen, however, that the funnel-shaped outwardly curved edge region 23 of the downwardly projecting projection 17 has a slightly larger diameter than the punched-out hole 29 in the composite laminate 24. Nevertheless, it proves to be possible to project this downwardly projecting projection 17 together with its outwardly curved one Press edge area 23 through the hole 29. This process is shown in Figure 4b).
  • the pouring spout is pressed onto the hole 29, as a result of which the downwardly projecting projection 17 slides through the hole 29 under an elastic deformation, in that the outwardly curved edge region 23 is first folded over, then in this folded over state slides through hole 29 and then resumes its initial and rest positions.
  • This state can be seen in FIG. 4c).
  • the pouring spout 2 is inserted into the hole 29, only it is not yet welded to it in a sealing manner.
  • the underside of its base 1 lies snugly on the composite laminate 24 and the downwardly projecting projection 17 with its funnel-shaped outwardly curved edge region 23 slightly projects beyond the lower edge of the hole 29 in the composite laminate 24. Now the instruments for welding come into action.
  • An anvil mandrel 28 moves upward from below against the downwardly projecting projection 17 and, in the opposite direction, a sonotrode 27 for ultrasonic welding moves from above onto the pouring spout 2.
  • the anvil dome forms a circumferential shoulder 30, the inner edge of which extends along the outer edge of the projection 17 extends, to which it runs open, while the outer edge thereof can extend to the overlying lower edge of the bottom 1 of the pouring spout.
  • At the inner edge of the shoulder is an oblique inclined surface 31, which extends over a few mm, but is not greater than the thickness of the composite laminate 24, in order to then merge into a flat anvil mandrel surface, which during the welding on the underside of the tear - Disc 8 is present.
  • the sonotrode 24 is set in an ultrasonic oscillation with a frequency of about 20 kHz and the frictional heat generated causes the beads 20, 21 to melt and for intimate connection with the melted composite laminate surfaces foil on the laminate is an aluminum foil, it must be covered with an additional, weldable plastic foil. So that is Composite packaging hermetically sealed by the tight pouring spout used, although it previously had a completely free punched hole. Nevertheless, the composite package is easy to open. To do this, the user simply pulls on the grip tab and tears away the tear-off disc once and for all, after which the composite pack is ready to pour out its contents.
  • This pouring spout is extremely simple in construction and inexpensive to manufacture, since it can be sprayed in one piece and without moving parts thereon. As described, it can also be assembled easily and automatically. It is particularly suitable for multi-packs that do not have to be sealed again after opening because their contents are used up as an application portion in a flash.

Abstract

The invention relates to a pouring neck which comprises a bottom (1) with a projection (2) extending upwards and an elastic projection recessed from the bottom underside and from the edge of the bottom and extending downwards, said projection having an outwardly bent edge area on its lower end. A thin spot (5) extends in the bottom (1) along the edge of the inner clear diameter of the downward extending projection. A tab (9) is molded onto the top of said area (8) and is used to tear this area away from the bottom (1) as a tear-off disk (8), thereby opening the pouring neck. For the purpose of installation, the pouring neck is pressed with its projection into the prepunched hole of a composite packing while elastically deforming the outward bent edge area of this projection. Once the projection has elastically returned to its initial shape it is pressed from below against the underside of the composite laminate by means of an anvil rod. A sonotrode presses the bottom (1) from below onto the upper side of the composite laminate and bonds it to the composite packing.

Description

Dicht verschlossener Ausquss-Stutzen mit Einmalöffnungs-Weqreiss-Scheibe für Verbundpackungen sowie Verfahren zu dessen Montage Tightly sealed spout with one-way opening Weqreiss disc for multi-packs and process for its assembly
[0001] Diese Erfindung betrifft einen dichten, also zunächst verschlossenen Ausguss-Stutzen für Verbundpackungen aller Art, der auf das vorgestanzte Loch einer Verbundpackung montierbar ist und ausserdem mit einer Wegreiss-Scheibe für seine einmalige Öffnung ausgerüstet ist. Die Erfindung betrifft auch ein Verfahren, um einen solchen Stutzen auf das in eine Verbundpackung vorgestanzte Loch zu montieren.This invention relates to a dense, so initially sealed spout for multi-packs of all types, which can be mounted on the pre-punched hole of a multi-pack and is also equipped with a tear-off washer for its unique opening. The invention also relates to a method for mounting such a nozzle on the hole pre-punched in a composite package.
[0002] Bei diesen Verbundpackungen ist namentlich an Flüssigkeitspackungen in Form solcher Verbundpackungen aus folienbeschichtetem Papier gedacht, in denen etwa Milch, Fruchtsäfte, allerlei nichtalkoholische Getränke oder generell Flüssigkeiten auch aus dem Non-Food-Bereich verpackt werden, zum Beispiel allerlei Konzentrate oder Öle für technische Zwecke. Der Ausguss-Stutzen kann aber auch für Verbundpackungen eingesetzt werden, in denen schüttfähige Güter wie etwa Zucker, Gries oder allerlei Chemikalien und ähnliches aufbewahrt bzw. verpackt werden. Bei Verbundpackungsmaterial handelt es sich um einen Lami- natstoff, etwa um eine mit Kunststoff wie zum Beispiel Polyäthylen und/oder Aluminium beschichtete Papier- oder Kartonbahn. Gebräuchliche Volumina solcher Packungen reichen von 2OcI bis zu 2 Litern und mehr.In these composite packs, liquid packs in the form of such composite packs made of film-coated paper are particularly conceived, in which, for example, milk, fruit juices, all kinds of non-alcoholic drinks or liquids in general are also packaged from the non-food sector, for example all kinds of concentrates or oils for technical purposes. The pouring spout can also be used for multi-packs in which bulk goods such as sugar, semolina or all kinds of chemicals and the like are stored or packaged. Composite packaging material is a lami- natstoff, for example around a paper or cardboard web coated with plastic such as polyethylene and / or aluminum. Common volumes of such packs range from 2OcI to 2 liters and more.
[0003] Herkömmlich werden auf solche Verbundpackungen Verschlüsse an vorgeschwächten oder vorbearbeiteten Stellen aufgeschweisst oder aufgeleimt. Die Verbundpackung wird dort bis auf die Dichtfolie im inneren ihres Laminates längs des Innenrandes des aufzuschweissenden Stutzens geschwächt, entweder mittels einer mechanischen Stanzung oder mittels eines Laserstrahls, und der Verschluss wird mit der lichten Weite seines Ausguss-Stutzens genau auf die randgeschwächte Stelle aufgeschweisst oder aufgeleimt. Als Alternative kann auch eine Scheibe, welche der inneren lichten Weite des aufzuschweissenden Stutzens entspricht, vollständig aus dem Verbundlaminat herausgestanzt werden, wonach das entstandene Loch wieder mit einer Dichtfolie überklebt wird. Der Ausguss-Stutzen mit seinem Deckel wird sodann auf diese Dichtfolie geklebt oder geschweisst, sodass seine lichte Weite genau über der darunterliegenden, herausgestanzten Stelle zu liegen kommt. Es gibt Verschlüsse mit einem runden Gewindestutzen und aufschraubbarem Kappendeckel wie auch Verschlüsse mit im Grundriss rechteckigen Ausguss-Stutzen mit einem scharnierend darauf niederschwenkbaren und dichtend aufklickbaren Deckel. Derartige Verschlüsse aus Kunststoff sind in verschiedenen Ausführungen bekannt. Sie bilden stets einen Ausguss-Stutzen mit von seinem unteren Rand radial auskragender Schulter, die an diesem Ausguss-Stutzen einen abschliessenden Flansch bildet. Ein solcher solcher Verschluss wird stets auf die Verbundpackung aufgeflanscht, indem er mit der Unterseite seines auskragenden Randes, also mit der Unterseite seines Flansches, auf die Verbundpackung dichtend aufgeschweisst oder aufgeklebt wird. Der freie Durchgang am unteren Ende des Stutzens ist danach vom Verbundpackungslaminat bzw. seiner intakten Dichtfolie oder aber von der nachträglich über das ausgestanzte Loch geklebten Dichtfolie verschlossen. Es ist und bleibt dabei stets die Verbundpackung selbst, welche ihre Dichtigkeit garantiert, und nicht etwa der aufgescheisste Verschluss, der zunächst ja die Verbundpackung in Bezug auf ihre Dichtigkeit unangetastet lässt. Das unterhalb des aufgeschweissten Stutzens durchgehende folienverstärkte Laminat oder die aufgeklebte Dichtfolie muss deshalb zum Öffnen aufgeschnitten, aufgerissen oder weggedrückt werden, damit der Durchgang freigegeben wird und die Flüssigkeit oder das Schüttgut aus dem Behälter durch den Stutzen ausgegossen bzw. ausgeschüttet werden kann, wozu diese Verschlüsse verschiedene Lösungen anbieten, die jedoch mehr oder weniger aufwändig in Konstruktion und Ausführung sind.[0003] Closures are conventionally welded or glued to such composite packs at weakened or preprocessed locations. The composite package is weakened there, except for the sealing film inside its laminate, along the inner edge of the socket to be welded on, either by means of mechanical punching or by means of a laser beam, and the closure is welded or glued to the edge-weakened area with the clear width of its spout socket , As an alternative, a washer, which corresponds to the inside clear width of the connecting piece to be welded on, can be completely punched out of the composite laminate, after which the hole formed is again covered with a sealing film. The pouring spout with its cover is then glued or welded onto this sealing film, so that its clear width comes to lie exactly above the punched-out area underneath. There are closures with a round threaded connector and screw-on cap lid, as well as closures with a rectangular spout with a hinged cover that can be swiveled down and clicked on tightly. Such closures made of plastic are known in various designs. They always form a pouring spout with a shoulder projecting radially from its lower edge, which forms a closing flange on this pouring spout. Such a closure is always flanged onto the composite package by being welded or glued to the composite package with the underside of its projecting edge, that is to say with the underside of its flange. The free passage at the lower end of the nozzle is then closed by the composite packaging laminate or its intact sealing film or by the sealing film which is subsequently glued via the punched-out hole. It is and will always be the composite packaging itself, which guarantees its tightness, and not the opened seal, which initially leaves the composite packaging intact in terms of its tightness. The continuous foil-reinforced laminate underneath the welded socket or the Adhesive sealing film must therefore be cut open, torn open or pressed away so that the passage is cleared and the liquid or bulk material can be poured out or poured out of the container through the nozzle, for which purpose closures offer various solutions, but these are more or less expensive are in construction and execution.
[0004] Herkömmliche solche Verschlüsse funktionieren jedoch nicht durchwegs zur vollen Zufriedenheit und sind auch nicht für jede Anwendung optimal geeignet. Die randgeschwächte Laminatscheibe oder Dichtfolie wird bei vielen Ausführungen zum Öffnen der Verbundpackung durch blosses Niederdrücken mit dem Finger an einer nicht definierten Bruchstelle zerrissen und die beiden entstehenden Laminat- oder Folienlappen werden dann seitlich nach unten geschwenkt. Der verbleibende Rand ist ausgefranst und somit ragen Papierfetzen oder Folienfetzen in den Durchgang, welcher eigentlich freigelegt werden sollte. Diese Fetzen ragen oft auch nach unten in den Behälter und versperren beim Ausgiessen oder Ausschütten womöglich den Weg für die von aussen in den Behälter einzuströmende Luft, oder sie ragen gar in den Weg des ausströmenden Flüssigkeitsstrahls oder der ausgeschütteten Güter. Im Fall von Flüssigkeiten führt das oft zu einem unangenehmen blubbernden, schwallweisen Ausgiessen der Flüssigkeit.However, conventional closures of this type do not always work to full satisfaction and are also not optimally suited for every application. The edge-weakened laminate pane or sealing film is torn in many versions to open the composite package by simply pressing it down with a finger at an undefined break point, and the two resulting laminate or film tabs are then pivoted sideways downwards. The remaining edge is frayed and shreds of paper or foil protrude into the passage, which should actually be exposed. These scraps often also protrude down into the container and may block the path for the air flowing into the container from outside when pouring or pouring out, or they even protrude into the path of the outflowing liquid jet or the discharged goods. In the case of liquids, this often leads to an unpleasant bubbling, gushing pouring out of the liquid.
[0005] Die bekannten Verschlüsse sind ausserdem wiederverschliessbar ausgeführt, das heisst sie schliessen einen Deckel ein, der dichtend auf den Stutzen aufsetz- oder aufschraubbar ist. Für vielerei Anwendungen ist jedoch eine Wiederverschliessbarkeit gar nicht gefragt. Bei Verbundpackungen, die nur eine einzige Anwendungsportion enthalten, sei es ein Pulver, ein Konzentrat oder eine Trinkportion, ist ein wiederverschliessbarer Verschluss gar nicht nötig. Hier würde ein einfacher Ausguss-Stutzen reichen, welcher jedoch zunächst dicht ist und der dann einmalig leicht und sauber geöffnet werden könnte.The known closures are also designed to be reclosable, that is, they include a lid which can be sealingly placed or screwed onto the connecting piece. However, reclosability is not required for many applications. A reclosable closure is not necessary for multi-packs that contain only a single application portion, be it a powder, a concentrate or a drink portion. A simple pouring spout would suffice here, but it is initially tight and could then be opened easily and cleanly.
[0006] Es ist deshalb die Aufgabe der vorliegenden Erfindung, einen dicht verschlossenen Ausguss-Stutzen mit Einmalöffnungs-Bruchscheibe für Verbundpackungen sowie ein Verfahren zu dessen Montage zu schaffen. Dieser Ausguss-Stutzen soll besonders einfach in Konstruktion und Ausführung sein und entsprechend kostengünstig in der Herstellung und Montage. Ausserdem soll er einfach und mit grosser Zuverlässigkeit dichtend auf eine Verbundpackung montierbar sein. In der Anwendung soll dieser zunächst dichte Ausguss-Stutzen leicht und sauber öffnenbar sein, sodass hernach ein blubberfreies, sauberes und dosiertes Ausgiessen eines flüssigen Verpackungsinhaltes sichergestellt wird und das Ausgiessen auch ohne zu tropfen und ohne ein adhäsives Nachlaufen von Flüssigkeit auf der Aussenseite des Ausguss-Stutzens, das heisst ohne zu kleckern, unterbrechbar ist.It is therefore an object of the present invention to provide a tightly sealed pouring spout with a single-opening rupture disc To create composite packs and a process for its assembly. This pouring spout should be particularly simple in construction and design and correspondingly inexpensive to manufacture and assemble. In addition, it should be easy to install and seal with great reliability on a composite package. In use, this initially tight pouring spout should be easy and clean to open, so that afterwards a bubbler-free, clean and dosed pouring of liquid contents of the package is ensured and the pouring also without dripping and without adhesive after-running of liquid on the outside of the pouring spout. Stutzen, that is, without spilling, is interruptible.
[0007] Diese Aufgabe wird gelöst von einem Ausguss-Stutzen für Verbundpackungen, bestehend aus einem flachen Boden mit von dessen Rand nach oben ragender Auskragung, sowie von der Bodenunterseite und vom Rand des Bodens zurückversetzt angeordneter nach unten ragender elastischer Auskragung mit an ihrem unteren Ende trichterförmig nach aussen gekrümmtem Randbereich, wobei sich im Boden eine Dünnstelle linienförmig längs des Randes des inneren lichten Querschnittes der sich nach unten erstreckenden Auskragung erstreckt, und oben auf diesem Bereich des Bodens eine Grifflasche angeformt ist.This object is achieved by a pouring spout for multi-packs, consisting of a flat bottom with upwardly projecting from its edge, and from the bottom and set back from the bottom of the bottom arranged downwardly projecting elastic projection with at its lower end funnel-shaped outward curved edge area, a thin point in the floor extending linearly along the edge of the inner clear cross-section of the downwardly extending projection, and a grip tab being formed on top of this area of the floor.
[0008] Die Aufgabe wird des Weiteren gelöst von einem Verfahren zur Montage eines Ausguss-Stutzens für Verbundpackungen nach diesem Anspruch, bei dem der Ausguss-Stutzen im Zuge seiner Montage in das vorgestanzte Loch einer Verbundpackung unter elastischer Deformation seiner nach unten ragenden Auskragung mit ihrem trichterförmig nach aussen gekrümmtem Randbereich von knapp grosserem Durchmesser als das zu bestückende Loch in dieses vorgestanzte Loch eingepresst wird, wobei sich die nach unten ragende Auskragung nach Passieren des Lochrandes in ihre Ausgangsstellung zurückverformt und hernach beim Verschweissen des Ausguss-Stutzens als Bördelrand mit der Unterseite des Verbundmaterials verschweisst wird, während die Unterseite des Bodens ausserhalb der Auskragung mit der Oberseite des Verbundlaminates dichtend verschweisst wird. [0009] In den Figuren ist eine Ausführung dieses Ausguss-Stutzens für Verbundpackungen in verschiedenen Ansichten dargestellt, sowie in einer weiteren Figur auch schematisch dessen Montage auf ein zu diesem Ausguss- Stutzen passendes vorgestanztes Loch in einer Verbundpackung gezeigt. Anhand dieser Figuren wird dieser Ausguss-Stutzen nachfolgend im Einzelnen beschrieben und seine Funktion wird erläutert und erklärt. Ebenfalls erklärt wird die Art und Weise seiner Montage auf eine Verbundpackung.The object is further achieved by a method for assembling a pouring spout for composite packs according to this claim, in which the pouring spout in the course of its assembly in the pre-punched hole of a composite pack with elastic deformation of its downwardly projecting projection with it funnel-shaped outward curved edge area of a diameter that is just larger than the hole to be fitted is pressed into this pre-punched hole, whereby the downwardly projecting cantilever deforms back into its initial position after passing through the hole edge and afterwards when the pouring spout is welded as a flanged edge with the underside of the Composite material is welded, while the underside of the floor is sealed to the top of the composite laminate outside the projection. In the figures, an embodiment of this pouring spout for composite packs is shown in different views, and in a further figure also schematically shows its assembly on a pre-punched hole matching this pouring spout in a composite pack. Using these figures, this pouring spout is described in detail below and its function is explained and explained. It also explains how it is assembled on a composite package.
Es zeigt:It shows:
Figur 1 : Den dichten Ausguss-Stutzen in einer perspektivischen Ansicht von schräg oben betrachtet;Figure 1: The tight pouring spout viewed in a perspective view obliquely from above;
Figur 2: Den dichten Ausguss-Stutzen in einer perspektivischen Ansicht von schräg unten betrachtet;Figure 2: The tight pouring spout viewed in a perspective view obliquely from below;
Figur 3: Den dichten Ausguss-Stutzen in einem perspektivisch dargestellten Querschnitt längs der Linie A-A in Figur 1 betrachtet;Figure 3: The dense spout in a perspective cross section along the line A-A in Figure 1 considered;
Figur 4a)-d): Einzelne Momentaufnahmen der Montage des Ausguss-Stutzens auf das vorgestanzte Loch in einem Verbundpackungslaminat, von der Seite her gesehen und schematisch dargestellt.Figure 4a) -d): Individual snapshots of the assembly of the pouring spout on the pre-punched hole in a composite packaging laminate, seen from the side and shown schematically.
[0010] Die Figur 1 zeigt den dichten Ausguss-Stutzen in einer perspektivischen Ansicht, wobei der Blick von schräg oben auf den Stutzen fällt. Dieser Ausguss- Stutzen besteht aus einem im Grundriss rechteckigen Boden 1 mit abgerundeten Ecken, und von dessen Rand 18 aus nach oben ragender Auskragung 2. Auf der Vorderseite ist die Auskragung 2 schiefwinklig nach vorne geneigt und bildet dort eine Ausgiess-Lippe 3. Diese Ausgiess-Lippe 3 läuft in einen scharfen Rand 4 aus, was wichtig für das saubere Ausgiessen eines flüssigen Inhaltes ist, und namentlich dafür, dass der Ausgiess-Vorgang auch abgesetzt werden kann und dabei kein Nachtropfen möglich ist, weil der Flüssigkeitsstrahl von der scharfen Kante 4 sauber unterbrochen wird, ohne dass etwa aufgrund von wirkenden Adhäsionskräften Flüssigkeit längs der Aussenseite der Ausgiess-Lippe 3 nach unten rinnen kann und somit den Ausguss-Stutzen und auch die damit ausgerüstete Verbundverpackung verkleckern würde. Innerhalb des Bodens 1 erkennt man eine in einigem Abstand von der Auskragung 2 rundumlaufende Nut 5, weiche auf ihrer Aussenseite von einer vertikalen Seitenfläche 6 und auf ihrer Innenseite von einer schiefwinkligen, von der Nut weggeneigten Seitenfläche 7 begrenzt wird. Diese Nut 5 ist so tief, dass sie nur einen dünnen Boden stehenlässt, welcher eine Dünnstelle bildet, innerhalb welcher dadurch eine leicht entfernbare Wegreiss-Scheibe 8 eingeschlossen ist. Trotzdem jedoch bleibt der Boden 1 insgesamt auf seine Unterseite durchgehend intakt und deshalb flüssigkeitsdicht. Damit diese Wegreiss-Scheibe 8 später leichter herausgerissen und entfernt werden kann, ist an ihrem vorderen Bereich eine Grifflasche 9 angeformt, die sich nach oben erstreckt und leicht mit Daumen und Zeigefinger einer Hand ergriffen werden kann. Sie kann zur Erhöhung ihrer Griffigkeit im oberen Randbereich geriffelt sein oder einen beidseitig oder hier bloss einseitig auskragenden Rand 10 aufweisen, was hier mit der Vertiefung 11 in Randnähe realisiert ist. An ihrer Hinterseite ist die Wegreiss-Scheibe 8 hier mit einem sich zungenförmig nach hinten erstreckenden Fortsatz 12 gestaltet. Dieser hintere Randbereich kommt dem Wegreissen entgegen. Wenn nämlich die Grifflasche 9 vom Benutzer angehoben wird, so bricht oder reisst zunächst die vordere, hier gekrümmte Dünnstelle 13 vor der Grifflasche 9. Dann aber bricht sogleich entweder der hinterste Abschnitt 14 der Dünnstelle, während die beiden vorgelagerten Dünnstellen 15 und 16 zunächst als Filmscharniere wirken, sodass der zun'genförmige Fortsatz 12 als Lastarm und die Bruchscheibe 8 von diesen Filmscharnieren aus bis zur Grifflasche 9 als Kraftarm wirkt, oder aber umgekehrt brechen zuerst die beiden Dünnstellen 15 und 16, indem sich der hinterste Dünnstellenbereich 14 als stärker erweist. In diesem Fall wirkt der zungenförmige Fortsatz ebenfalls als Lastarm und die Wegreiss-Scheibe von der hintersten Dünnstelle 14 aus bis zur Grifflasche 9 wirkt als Kraftarm. Dieser Ausguss- Stutzen, der im hier gezeigten Zustand mit dieser ausgeformten Wegreiss-Scheibe 8 einen flüssigkeitsdichten Boden 1 aufweist, wird über ein vorgestanztes Loch in eine Verbundpackung eingeschweisst, sodass die Wegreiss-Scheibe 8 kongruent über dem Loch zu liegen kommt. [0011] In Figur 2 ist dieser dichte Ausguss-Stutzen in einer perspektivischen Ansicht von schräg unten betrachtet dargestellt. Man erkennt hier die Unterseite des Bodens 1 und die an dessen Rand 18 nach oben ragende Auskragung 2 mit der von ihr vorne gebildeten Ausgiess-Lippe 3 mit scharfem Rand 4. Etwas nach innen abgesetzt erstreckt sich von der Unterseite des Bodens 1 und an diesem angeformt eine nach unten ragende elastische Auskragung 17. Diese Auskragung 17 fluchtet mit ihrem Innenrand 19 genau mit der vertikalen Seitenwand 6 der Nut 5, die auf der Oberseite aus dem Boden 1 ausgenommen ist, mit Ausnahme des hinteren Bereichs der Wegreiss-Scheibe 8. Dort nämlich fluchtet der Innenrand 19 bloss mit der vertikalen Seitenwand des Dünnstellenabschnittes 14, während die Bereiche links und rechts des zungenförmigen Fortsatzes 12 unten von der Auskragung 17 umfasst werden. Diese nach unten ragende, aufgrund ihrer dünnen Auslegung elastisch deformierbare Auskragung 17 ist an ihrem äusseren Rand mit einer wulstartigen Verstärkung 20 versehen, wobei der Querschnitt dieses Wulstes halbrund oder auch eckig, zum Beispiel dreieckig gestaltet sein kann. Wenn auch in der Zeichnung nicht ersichtlich, so ist der untere Randbereich der Auskragung 17 leicht tichterföi mig nach aussen gekrümmt, sodass der äussere Umfang des Randes definitiv weiter ist als der Umfang der Auskragung 17 in ihrem weiter dem Boden zugewandten Bereich. Die Unterseite des Bodens 1 ist mit einem ähnlichen oder gleichen Wulst 21 versehen, der die Auskragung mit etwas Abstand umläuft.Figure 1 shows the sealed pouring spout in a perspective view, the view falling obliquely from above onto the spout. This pouring spout consists of a floor 1 rectangular in shape with rounded corners, and from the edge 18 of which protrudes upwards. On the front, the projection 2 is inclined at an oblique angle to the front and forms a pouring lip 3. This pouring lip -Lip 3 runs into a sharp edge 4, which is important for the clean pouring out of a liquid content, and in particular for the pouring process also being able to be stopped and no dripping possible because the liquid jet from the sharp edge 4 is interrupted cleanly without having to act Adhesive forces liquid can run down along the outside of the pouring lip 3 and thus would spill the pouring spout and also the composite packaging equipped with it. Within the base 1 one can see a groove 5 which runs around at some distance from the projection 2 and which is delimited on its outside by a vertical side face 6 and on its inside by an obliquely angled side face 7 inclined away from the groove. This groove 5 is so deep that it leaves only a thin bottom, which forms a thin point within which an easily removable tear-off disk 8 is enclosed. Nevertheless, the bottom 1 remains entirely intact on its underside and is therefore liquid-tight. So that this tear-off disk 8 can later be torn out and removed more easily, a grip tab 9 is formed on its front area, which extends upwards and can be easily gripped with the thumb and index finger of one hand. To increase its grip, it can be grooved in the upper edge region or have an edge 10 which projects on both sides or here only on one side, which is realized here with the recess 11 near the edge. On its rear side, the tear-off disk 8 is designed here with an extension 12 which extends backward in the manner of a tongue. This rear edge area accommodates tearing away. If the handle tab 9 is lifted by the user, the front thin point 13, here curved, first breaks or tears in front of the handle tab 9. But then either the rearmost section 14 of the thin point immediately breaks, while the two upstream thin points 15 and 16 initially act as film hinges act, so that the initially 'genförmige extension 12 to act as a load arm and the burst disk 8 of these film hinges to the grip tab 9 as a power arm, or vice versa break out the two thin portions 15 and 16 by the rearward thin places region 14 turns out to be stronger. In this case, the tongue-shaped extension also acts as a load arm and the tear-off disk from the rearmost thin point 14 to the grip tab 9 acts as a force arm. This pouring spout, which in the state shown here has a liquid-tight base 1 with this shaped tear-off washer 8, is welded into a composite packing via a pre-punched hole, so that the tear-off washer 8 comes to lie congruently over the hole. In Figure 2, this dense spout is shown in a perspective view viewed obliquely from below. One can see here the underside of the base 1 and the overhanging projection 2 on its edge 18 with the pouring lip 3 formed by it with a sharp edge 4. Somewhat offset inwards extends from the underside of the base 1 and is molded onto it a downwardly projecting elastic projection 17. This projection 17 is aligned with its inner edge 19 exactly with the vertical side wall 6 of the groove 5, which is removed from the top 1 on the upper side, with the exception of the rear region of the tear-off disc 8. There, namely The inner edge 19 is only aligned with the vertical side wall of the thin section 14, while the areas to the left and right of the tongue-shaped extension 12 are surrounded by the projection 17 at the bottom. This downwardly projecting, due to its thin design elastically deformable projection 17 is provided on its outer edge with a bead-like reinforcement 20, the cross section of this bead can be semicircular or angular, for example triangular. Although not shown in the drawing, the lower edge area of the projection 17 is slightly tichterföi mig outward curved, so that the outer circumference of the edge is definitely wider than the circumference of the projection 17 in its area facing the ground. The underside of the bottom 1 is provided with a similar or the same bead 21, which surrounds the projection with a little distance.
[0012] ' Zum weiteren Verständnis der Gestaltung des hier gezeigten beispielsweisen Ausguss-Stutzens zeigt die Figur 3 diesen hier immer noch dichtend verschlossenen Ausguss-Stutzen in einem perspektivisch dargestellten Querschnitt längs der Linie A-A in Figur 1 betrachtet. Hier erkennt man den Querschnitt der Nut 5 mit ihren auf der Aussenseite vertikal zum Boden 1 verlaufenden Seitenfläche 6 sowie der auf der Innenseite schiefwinklig geneigten Seitenfläche 7. Die Nut 5 lässt eine dünne Materialbrücke sehen, die als Dünnstelle 22 wirkt und unter Zug auf die Grifflasche 9 bricht oder reisst, sodass die Wegreiss-Scheibe 8 nach oben Wegreissbar ist, indem die Dünnstellen 22 von vorne nach hinten reissen. Die Auskragung 17 weist in ihrem unteren Randbereich einen trichterförmig nach aussen gekrümmten Rand 23 mit aussenliegendem Wulst 20 auf, der im gezeigten Beispiel einen dreieckigen Querschnitt zeigt, jedoch auch halbrund oder rundlich geformt sein kann. Einen hier ebenfalls dreieckigen Querschnitt weist der Wulst 21 auf der Unterseite des Bodens 1 auf, der jedoch in seinem Querschnitt auch halbrund oder rundlich gestaltet sei kann. Diese Wulste 20,21 dienen als Materialreserve für die spätere Verschweissung des Ausguss-Stutzens mit einer Verbundpackung. Es ist das Material dieser Wulste 20,21, das im Zuge der Schweissung verflüssigt wird und sich deshalb innig mit dem gegenüberliegenden verschweissbaren Kunststoff-Folienmaterial des Verbundpackungslaminates verbindet.[0012] 'To further understand the design of the exemplary spout neck shown here shows the line AA considered here this still sealingly closed pouring spout in a perspective cross section illustrated in Figure 1 along the FIG. 3 Here you can see the cross section of the groove 5 with its side surface 6, which runs vertically to the bottom 1 on the outside, and the side surface 7 which is inclined at an oblique angle on the inside. The groove 5 shows a thin material bridge, which acts as a thin point 22 and under tension on the grip tab 9 breaks or tears, so that the tear-off disk 8 can be torn away upwards by the thin areas 22 tearing from front to back. The projection 17 has in its lower edge area a funnel-shaped outwardly curved edge 23 with an outer bead 20, which in the example shown has a triangular cross section, but can also be semicircular or rounded. The bead 21 on the underside of the base 1 also has a triangular cross section here, but its cross section can also be semicircular or rounded. These beads 20, 21 serve as a material reserve for the later welding of the pouring spout with a composite packing. It is the material of these beads 20, 21 that is liquefied in the course of the welding and therefore binds intimately to the opposite weldable plastic film material of the composite packaging laminate.
[0013] In den Figur 4a)-d) wird nun das Verfahren zur Montage des Ausguss- Stutzens dargestellt und erklärt. Gezeigt sind hier einzelne Momentaufnahmen der Montage des Ausguss-Stutzens auf das vorgestanzte Loch 29 in einem Verbundpackungslaminat, und zwar von der Seite her gesehen und schematisch dargestellt. Zunächst zeigt die Figur 4a) den Ausgangszustand. Der Ausguss- Stutzen 2 wird mittels eines Greifers, der hier nicht dargestellt ist, über dem ausgestanzten Loch 29 eines Verbundlaminates 24 einer Verbundpackung positioniert. Dieses Laminat 24 aus dem Grundstoff Papier weist auf seiner Oberseite eine verschweissfähige Kunststoffschicht 25 auf und auf seiner Unterseite eine als Dichtfolie wirkende Kunststofffolie 26 oder aufgedampfte oder aufkaschierte Aluminiumschicht 26 mit verschweissbarer Kunststoff-Beschichtung. Das Verbundlaminat wird von unten ausserhalb des Lochbereichs von einer Auflageplatte gestützt, die jedoch nicht dargestellt ist. Man erkennt aber, dass der trichterförmig nach aussen gekrümmte Randbereich 23 der nach unten ragenden Auskragung 17 einen knapp grosseren Durchmesser aufweist als das ausgestanzte Loch 29 im Verbundlaminat 24. Trotzdem erweist es sich als möglich, diese nach unten ragende Auskragung 17 mitsamt ihrem nach aussen gekrümmten Randbereich 23 durch das Loch 29 zu pressen. Dieser Vorgang ist in Figur 4b) gezeigt. Der Ausguss-Stutzen wird dabei auf das Loch 29 gedrückt, wodurch die nach unten ragende Auskragung 17 unter einer elastischen Deformation durch das Loch 29 rutscht, indem der nach aussen gekrümmte Randbereich 23 zunächst umgelegt wird, dann in diesem umgelegten Zustand durch das Loch 29 gleitet und hernach wieder seine Ausgangs- und Ruhestellung einnimmt. In Figur 4c) sieht man diesen Zustand. Der Ausguss-Stutzen 2 ist in das Loch 29 eingesetzt, bloss ist er noch nicht dichtend mit diesem verschweisst. Die Unterseite seines Bodens 1 liegt satt auf dem Verbundlaminat 24 auf und die nach unten ragende Auskragung 17 mit ihrem trichterförmig nach aussen gekrümmten Randbereich 23 überragt leicht den unteren Rand des Loches 29 im Verbundlaminat 24. Nun kommen die Instrumente für das Verschweissen in Aktion. Von unten fährt ein Ambossdorn 28 aufwärts gegen die nach unten ragende Auskragung 17 und gegengleich fährt eine Sonotrode 27 für die Ultraschweissung von oben auf den Ausguss-Stutzen 2. Der Ambossdom bildet eine rundumlaufende Schulter 30, deren innerer Rand sich längs des Aussenrandes der Auskragung 17 erstreckt, auf weiche sie auffährt, während sich deren äusserer Rand bis hinaus zum darüber liegenden unteren Rand des Bodens 1 des Ausguss-Stutzens erstrecken kann. An den inneren Rand der Schulter schliesst eine schiefwinklige Schrägfläche 31 an, die sich über einige mm erstreckt, jedoch nicht höher ist als die Dicke des Verbundlaminates 24, um dann in eine ebene Ambossdorn-Oberfläche überzugehen, die während der Schweissung an der Unterseite der Ausreiss-Scheibe 8 anliegt. Wenn nun dieser Ambossdorn 28 und die Sonotrode 27 zusammenfahren, so wird die nach unten ragende Auskragung dank des trichterförmig nach aussen gekrümmten Randbereiches und der Schrägfläche 31 am Ambossdorn 28 nach aussen gespreizt und die Schulter 30 klemmt schliesslich die nach aussen gespreizte und entsprechend gedehnte Auskragung 17 zwischen sich und der Unterseite des Bodens" 1 ein. Die von oben herabfahrende Sonotrode 27 drückt auf die Oberseite des Bodens 1 rund um die Wegreiss-Scheibe 8. Diese Situation ist in Figur 4d) gezeigt. In diesem Klemmzustand erfolgt die Verschweissung des Ausguss- Stutzens-Bodens 1 und seiner Auskragung 17 mit dem oberen und unteren Lochrand des Loches im Verbundlaminat der Verbundpackung. Hierzu wird die Sonotrode 24 in eine Ultraschallschwingung mit einer Frequenz von ca. 2OkHz versetzt und die erzeugte Reibwärme bringt die Wulste 20,21 zum Schmelzen und zum innigen Verbinden mit den angeschmolzenen Verbundlaminat-Oberflächen. Wenn die Dichtfolie am Laminat eine Aluminiumfolie ist, so muss diese mit einer zusätzlich, verschweissbaren Kunststoff-Folie überdeckt sein. Somit ist die Verbundverpackung durch den eingesetzten dichten Ausguss-Stutzen hermetisch dicht verschlossen, obwohl sie zuvor ein völlig freies ausgestanztes Loch aufwies. Trotzdem ist die Verbundpackung leicht öffnenbar. Hierzu zieht der Benutzer einfach an der Grifflasche und reisst die Wegreiss-Scheibe ein für allemal weg, wonach die Verbundpackung bereit zum Ausgiessen ihres Inhaltes ist.In Figures 4a) -d), the method for assembling the pouring spout is now shown and explained. Shown here are individual snapshots of the assembly of the pouring spout on the pre-punched hole 29 in a composite packaging laminate, seen from the side and shown schematically. 4a) shows the initial state. The pouring spout 2 is positioned by means of a gripper, which is not shown here, over the punched-out hole 29 of a composite laminate 24 of a composite pack. This laminate 24 made of the basic material paper has on its upper side a weldable plastic layer 25 and on its underside a plastic film 26 which acts as a sealing film or an evaporated or laminated aluminum layer 26 with a weldable plastic coating. The composite laminate is supported from below outside the perforated area by a support plate, which is not shown, however. It can be seen, however, that the funnel-shaped outwardly curved edge region 23 of the downwardly projecting projection 17 has a slightly larger diameter than the punched-out hole 29 in the composite laminate 24. Nevertheless, it proves to be possible to project this downwardly projecting projection 17 together with its outwardly curved one Press edge area 23 through the hole 29. This process is shown in Figure 4b). The pouring spout is pressed onto the hole 29, as a result of which the downwardly projecting projection 17 slides through the hole 29 under an elastic deformation, in that the outwardly curved edge region 23 is first folded over, then in this folded over state slides through hole 29 and then resumes its initial and rest positions. This state can be seen in FIG. 4c). The pouring spout 2 is inserted into the hole 29, only it is not yet welded to it in a sealing manner. The underside of its base 1 lies snugly on the composite laminate 24 and the downwardly projecting projection 17 with its funnel-shaped outwardly curved edge region 23 slightly projects beyond the lower edge of the hole 29 in the composite laminate 24. Now the instruments for welding come into action. An anvil mandrel 28 moves upward from below against the downwardly projecting projection 17 and, in the opposite direction, a sonotrode 27 for ultrasonic welding moves from above onto the pouring spout 2. The anvil dome forms a circumferential shoulder 30, the inner edge of which extends along the outer edge of the projection 17 extends, to which it runs open, while the outer edge thereof can extend to the overlying lower edge of the bottom 1 of the pouring spout. At the inner edge of the shoulder is an oblique inclined surface 31, which extends over a few mm, but is not greater than the thickness of the composite laminate 24, in order to then merge into a flat anvil mandrel surface, which during the welding on the underside of the tear - Disc 8 is present. If this anvil mandrel 28 and the sonotrode 27 move together, the downwardly projecting cantilever is spread outwards thanks to the funnel-shaped edge region and the inclined surface 31 on the anvil mandrel 28, and the shoulder 30 finally clamps the outwardly spread and correspondingly expanded projection 17 between itself and the underside of the bottom "1. The sonotrode 27, which descends from above, presses on the top of the bottom 1 around the tear-off disk 8. This situation is shown in FIG. 4d). In this clamped state, the spout is welded. Stutzens-Bodenes 1 and its projection 17 with the upper and lower edge of the hole in the composite laminate of the composite package For this purpose, the sonotrode 24 is set in an ultrasonic oscillation with a frequency of about 20 kHz and the frictional heat generated causes the beads 20, 21 to melt and for intimate connection with the melted composite laminate surfaces foil on the laminate is an aluminum foil, it must be covered with an additional, weldable plastic foil. So that is Composite packaging hermetically sealed by the tight pouring spout used, although it previously had a completely free punched hole. Nevertheless, the composite package is easy to open. To do this, the user simply pulls on the grip tab and tears away the tear-off disc once and for all, after which the composite pack is ready to pour out its contents.
[0014] Dieser Ausguss-Stutzen ist höchst einfach konstruiert und in der Herstellung kostengünstig, da er einstückig und ohne daran bewegliche Teile spritzbar ist. Auch seine Montage ist wie beschrieben einfach und automatisch realisierbar. Er eignet sich insbesondere für Verbundpackungen, die nach dem Öffnen nicht wieder dichtend verschlossen werden müssen, weil deren Inhalt als Anwendungsportion in einem Nu vollständig aufgebraucht wird. This pouring spout is extremely simple in construction and inexpensive to manufacture, since it can be sprayed in one piece and without moving parts thereon. As described, it can also be assembled easily and automatically. It is particularly suitable for multi-packs that do not have to be sealed again after opening because their contents are used up as an application portion in a flash.

Claims

Patentansprüche claims
1. Ausguss-Stutzen für Verbundpackungen, bestehend aus einem flachen Boden (1) mit von dessen Rand nach oben ragender Auskragung (2), sowie von der Bodenunterseite und vom Rand des Bodens (1) zurückversetzt angeordneter nach unten ragender elastischer Auskragung (17) mit an ihrem unteren Ende trichterförmig nach aussen gekrümmtem Randbereich (23), wobei sich im Boden (1) eine Dünnstelle (22) linienförmig längs des Randes des inneren lichten Querschnittes der sich nach unten erstreckenden Auskragung (17) erstreckt, und oben auf diesem Bereich (8) des Bodens (1) eine Grifflasche (9) angeformt ist.1. pouring spout for composite packs, consisting of a flat base (1) with a projection (2) projecting upward from the edge thereof, and a downwardly projecting elastic projection (17) arranged set back from the bottom side and from the edge of the base (1) with at its lower end a funnel-shaped edge region (23), whereby in the bottom (1) a thin point (22) extends linearly along the edge of the inner clear cross section of the downwardly extending projection (17), and on top of this region (8) of the bottom (1) a grip tab (9) is formed.
2. Ausguss-Stutzen für Verbundpackungen nach Anspruch 1 , dadurch gekennzeichnet, dass die Dünnstelle (22) als Nut (5) ausgebildet ist, die aus der Oberseite des Bodens (1 ) ausgenommen ist und auf ihrer Aussenseite eine senkrechte Seitenwand (6) aufweist und auf ihrer Innenseite eine schräg nach aussen geneigte Seitenwand.2. pouring spout for composite packs according to claim 1, characterized in that the thin point (22) is designed as a groove (5) which is recessed from the top of the bottom (1) and has a vertical side wall (6) on its outside and on the inside a side wall inclined outwards.
3. Ausguss-Stutzen für Verbundpackungen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Dünnstelle (22) als Nut (5) ausgebildet ist, und diese Nut (5) eine längliche Wegreiss-Scheibe umschliesst, die an ihrem hinteren Ende einen zungenförmigen Fortsatz (12) bildet, der hinten von der zum Nutabschnitt (14) gehörigen Dünnstelle (22) gehalten ist, wobei zu diesem Nutabschnitt (14) zwei parallele, auf einer Linie verlaufende Nutabscnitte (15,16) gebildet sind, sodass die Dünnstellen dieser einen Nutabschnitte (15,16) oder die Dünnstelle des anderen Nutabschnittes (14) beim Herausreissen der Wegreiss-Scheibe (8) kurzzeitig als Filmscharnier zu wirken bestimmt sind. 3. pouring spout for composite packs according to one of the preceding claims, characterized in that the thin point (22) is designed as a groove (5), and this groove (5) encloses an elongated tear-off disc, which has a tongue-shaped at its rear end Extension (12) forms, which is held at the back by the thin section (22) belonging to the groove section (14), two parallel groove sections (15, 16) running on a line being formed to this groove section (14), so that the thin sections of these a groove section (15, 16) or the thin section of the other groove section (14) are intended to act briefly as a film hinge when the tear-off washer (8) is torn out.
4. Ausguss-Stutzen für Verbundpackungen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass vom Boden nach oben ragende Auskragung an ihrer Vorderseite in eine schiefwinklig nach vorne geneigte Ausgiess-Lippe 3 mit scharfem Rand 4 ausgeformt ist.4. pouring spout for composite packs according to one of the preceding claims, characterized in that protruding from the bottom upward protrusion is formed on its front side in a slanted angled forward lip 3 with a sharp edge 4.
5. Ausguss-Stutzen für Verbundpackungen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Unterseite des Bodens (1) rund um die nach unten ragende Auskragung (17) mit einem Wulst (21) ausgerüstet ist, der im Zuge des Verschweissens des Bodens (1) mit einem5. pouring spout for composite packs according to one of the preceding claims, characterized in that the underside of the bottom (1) around the downwardly projecting projection (17) is equipped with a bead (21) which in the course of welding the bottom (1) with one
Verbundlaminat (24) als zu schmelzende Materialreserve zu wirken bestimmt ist.Composite laminate (24) is intended to act as a material reserve to be melted.
6. Ausguss-Stutzen für Verbundpackungen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der untere äussere Rand der nach unten ragenden Auskragung (17) mit einem Wulst (20) versehen ist, der im Zuge des Verschweissens des Bodens (1) mit einem Verbundlaminat (24) als zu schmelzende Materialreserve zu wirken bestimmt ist.6. pouring spout for composite packs according to one of the preceding claims, characterized in that the lower outer edge of the downwardly projecting projection (17) is provided with a bead (20) which in the course of welding the base (1) with a Composite laminate (24) is intended to act as a material reserve to be melted.
7. Verfahren zur Montage eines Ausguss-Stutzens für Verbundpackungen nach Anspruch 1 , bei dem der Ausguss-Stutzen im Zuge seiner Montage in das vorgestanzte Loch (29) einer Verbundpackung (24) unter elastischer Deformation seiner nach unten ragenden Auskragung (17) mit ihrem trichterförmig nach aussen gekrümmtem Randbereich (23) von knapp grosserem Durchmesser als das zu bestückende Loch (29) in dieses vorgestanzte Loch (29) eingepresst wird, wobei sich die nach unten ragende Auskragung (17) nach Passieren des Lochrandes in ihre Ausgangsstellung zurückverformt und hernach beim Verschweissen des Ausguss-Stutzens als Bördelrand mit der Unterseite des Verbundmaterials (24) verschweisst wird, während der die Unterseite des Bodens (1) ausserhalb der Auskragung (17) mit der Oberseite des Verbundlaminates dichtend verschweisst wird.7. A method of assembling a pouring spout for composite packs according to claim 1, wherein the pouring spout during assembly in the pre-punched hole (29) of a composite packing (24) with elastic deformation of its downwardly projecting projection (17) with it Funnel-shaped outward-curved edge area (23) of a slightly larger diameter than the hole (29) to be fitted is pressed into this pre-punched hole (29), the downwardly projecting projection (17) being deformed back into its initial position after passing through the hole edge and afterwards when welding the pouring spout as a flanged edge is welded to the underside of the composite material (24), during which the underside of the base (1) outside the projection (17) is sealed to the top of the composite laminate.
8. Verfahren nach Anspruch 7 zur Montage eines Ausguss-Stutzens für Verbundpackungen nach Anspruch 1 , bei dem der Ausguss-Stutzen a) mit seiner nach unten ragenden elastischen Auskragung (17) unter elastischer Deformation derselben in ein vorgestanztes Loch (29) in der Verbundpackung (24) gedrückt wird, wobei sich die Auskragung (17) nach Passieren des vorgestanzten Loches (29) elastisch in ihre Ausgangslage zurückverformt, in welcher ihr trichterförmig nach aussen gekrümmter Randbereich (23) über dem unteren Randbereich des ausgestantzen Loches (29) zu liegen kommt, und die Unterseite des Bodens (1) ausserhalb der nach unten ragenden elastischen Auskragung (17) über dem oberen Randbereich des ausgestanzten Loches (29) zu liegen kommt, b) von unten ein Ambossdorn (28) mit rundumlaufender horizontaler Schulter (30) und von dieser schräg nach oben zulaufendem Hals (31) an den trichterförmig nach aussen gekrümmten Randbereich (23) der nach unten ragenden elastischen Auskragung (17) gefahren wird und gleichzeitig von oben eine Sonotrode (27) mit auf die Schulter (30) des Ambossdorns (28) passendem, vorstehenden Rand auf den Boden (1) herabgefahren wird, sodass der trichterförmig nach aussen gekrümmte Randbereich (23) glatt an die Unterseite des Bodens (1) angelegt wird; c) die Sonotrode (27) und der Ambossdorn (28) zusammengepresst werden und die Sonotrode (27) in eine Ultraschallschwingung versetzt wird, unter welcher die Unterseite des Bodens (1) mit dem Randbereich der nach unten ragenden Auskragung (17) dichtend verschweisst wird. 8. The method according to claim 7 for assembling a pouring spout for Composite packs according to Claim 1, in which the pouring spout a) with its downwardly projecting elastic projection (17) is pressed into a pre-punched hole (29) in the composite pack (24) with elastic deformation thereof, the projection (17) after passing through the pre-punched hole (29) elastically deformed back into its starting position, in which its outwardly curved edge region (23) comes to lie above the lower edge region of the punched hole (29), and the underside of the base (1) outside of it elastic protrusion (17) projecting below comes to rest over the upper edge region of the punched-out hole (29), b) from below an anvil mandrel (28) with a circumferential horizontal shoulder (30) and from this neck (31) tapering upwards to the funnel-shaped outward curved edge region (23) of the downwardly projecting elastic projection (17) is moved and at the same time a sonotrode (27) is also carried from above on the shoulder (30) of the anvil mandrel (28) matching projecting edge is lowered onto the floor (1) so that the outwardly curved edge region (23) is smoothly applied to the underside of the floor (1); c) the sonotrode (27) and the anvil mandrel (28) are pressed together and the sonotrode (27) is set into an ultrasonic vibration, under which the underside of the base (1) is welded in a sealing manner to the edge region of the downwardly projecting projection (17) ,
PCT/CH2004/000350 2003-06-12 2004-06-10 Tightly sealed pouring neck having a single use tear-off disk for composite packings and method for installing the same WO2004110882A1 (en)

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CH10312003 2003-06-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342729A1 (en) * 1988-05-20 1989-11-23 The Procter & Gamble Company Moisture impervious carton having one piece pouring spout sealed to innermost & outermost surfaces
US5125886A (en) * 1989-12-15 1992-06-30 The Procter & Gamble Company One piece pouring spout sealed to innermost and outermost surfaces of moisture impervious carton
FR2738552A1 (en) * 1995-09-08 1997-03-14 Rical Sa CLOSURE POURER FOR CONTAINERS, ESPECIALLY FOR LIQUID PACKAGING BOXES
US5636784A (en) * 1993-07-31 1997-06-10 Huser; Pierre Pack for flowing media having a pouring device, a method for the manufacture of a pack for flowing media and a tool for carrying out the method
US6010759A (en) * 1990-11-14 2000-01-04 Dai Nippon Printing Co., Ltd. Composite container having barrier property

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342729A1 (en) * 1988-05-20 1989-11-23 The Procter & Gamble Company Moisture impervious carton having one piece pouring spout sealed to innermost & outermost surfaces
US5125886A (en) * 1989-12-15 1992-06-30 The Procter & Gamble Company One piece pouring spout sealed to innermost and outermost surfaces of moisture impervious carton
US6010759A (en) * 1990-11-14 2000-01-04 Dai Nippon Printing Co., Ltd. Composite container having barrier property
US5636784A (en) * 1993-07-31 1997-06-10 Huser; Pierre Pack for flowing media having a pouring device, a method for the manufacture of a pack for flowing media and a tool for carrying out the method
FR2738552A1 (en) * 1995-09-08 1997-03-14 Rical Sa CLOSURE POURER FOR CONTAINERS, ESPECIALLY FOR LIQUID PACKAGING BOXES

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