EP1863717A1 - Reclosable pouring element for composite cardboard/plastic packaging - Google Patents
Reclosable pouring element for composite cardboard/plastic packagingInfo
- Publication number
- EP1863717A1 EP1863717A1 EP07727724A EP07727724A EP1863717A1 EP 1863717 A1 EP1863717 A1 EP 1863717A1 EP 07727724 A EP07727724 A EP 07727724A EP 07727724 A EP07727724 A EP 07727724A EP 1863717 A1 EP1863717 A1 EP 1863717A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting element
- pouring
- cutting
- frame member
- thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
-
- 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
-
- 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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
-
- 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
Definitions
- the invention relates to a resealable pouring element for cardboard / plastic composite packages, in particular beverage packages, consisting of a peripheral mounting flange and an external thread having frame member, an external thread and an internal thread exhibiting cutting element and a screw cap with an internal thread, wherein the cutting element in the injection position on the the mounting flange opposite end of the frame member and this is produced integrally molded via at least one connecting bridge and wherein the cutting element is arranged in the mounting position of the pouring element in the interior of the frame member.
- Reclosable pouring spouts for disposable packages have long been known in many designs.
- versions with screw cap are particularly popular because they ensure a reliable tight reclosure, so that it can be shaken in resealed packaging, without any of the contents can escape.
- Such spouts are often constructed in three parts, with a peripheral flange equipped with a frame member is firmly connected to the top of the composite package.
- TH / bs 070280WO Screw cap is the actual frame shape cylindrical, wherein inside the cylinder, a cutting element is arranged, which, operated by the screw, has the task of opening the composite package by being moved when first opening the screw from the frame member inside the composite package, so that a pouring opening is formed below the pouring element.
- TH / bs 070280WO Furthermore, from WO 2004/000667 a three-part pouring element is known in which, however, the opening element is not moved in a screwing manner. The actual opening process is done here rather by a combination of a piercing with a rotational movement, ie a sequence of initially an axial and subsequent radial movement.
- the present invention has the object, the above-mentioned and more closely described above pouring element for cardboard / plastic composite packages and further, that while maintaining a simple three-part construction a particularly simple installation and good cohesion of the preassembled pouring element is achieved , Furthermore, a reliable penetration of the pouring spanning film over the first opening should be ensured. Furthermore, it is desirable that a collapse of the cutting element into the interior of the package after the opening process can be reliably prevented.
- the external thread of the cutting element consists of two threaded sections, each with two threads, each extending over approximately at least a quarter of the circumference of the cutting element and having a slope which is steeper than the internal thread of the screw cap, that the Internal thread of the frame member consists of two threaded portions, each extending over about half of the circumference and have a slope corresponding to the pitch of the external thread of the cutting element, that the frame member has at its lower inner circumference a circumferential and downwardly facing lip and that the cutting element in the region of the external thread has a groove running parallel to the lip, which groove is suitable for receiving the lip when the cutting element protrudes from the frame element.
- the invention has recognized that in this way the cutting element is always in a defined position: After removal from the injection mold a plurality of circumferentially distributed radial connecting bridges are provided for connection between the frame member and cutting element, which between the bottom of the cutting element and the upper edge run of the frame element and are destroyed only when nesting. Later, dropping out of the cutting element from the downwardly open frame member during transport or application to the composite package is reliably prevented. Even with the pouring element already applied to the composite packing, no damage to the underlying PE layer of the over-coated pouring opening can occur
- a simultaneous axial telescoping of the mounted on the unit of cutting element and frame element screw is sufficient to allow the final assembly of the applied to a composite package pouring.
- a falling in of the cutting element into the interior of the package after opening is reliably precluded by the fact that after insertion of the cutting element the lip arranged at the lower inner edge of the frame element is located in the groove of the external thread provided for this purpose and in this way becomes positive Stop worrying.
- the formation of a lip is manufacturing technology when demolding the injection-molded component frame element / cutting element favorable and further, the lip also serves as a stop for the turned into the frame member when opening cutting element.
- a further preferred embodiment of the invention provides that the external thread of the frame member in cross-section has a lower edge extending parallel to the mounting flange and an inclined upper edge and cooperating with the internal thread in the screw cap.
- the external thread consists in a preferred embodiment of the invention of a plurality of individual spaced apart with short interruptions threaded portions.
- a further teaching of the invention provides that the cutting element has a plurality of circumferentially arranged radially outwardly directed projections, which cooperate with corresponding inner cam of the frame member to prevent unscrewing of the cutting element from the frame member. When screwing on the screw cap, they release the rotation of the cutting element only in one direction, allowing only one left turn.
- These projections can either be formed by cams protruding radially on the outside of the cutting element and / or by respective horizontal extensions of the upper ends of the threaded sections. Particularly preferably, the cams and the threaded sections merge into one another.
- the cutting element has at least one opening in the region between the threaded sections.
- Such an opening acts as a "pouring window” and ensures that even during the emptying of residues, that is, when the package is upside down,
- the cutting element has on its outer side a plurality circumferentially distributed and radially projecting cams, which extend from the upper edge of the cutting element down and correspond in shape to the already described cam of the cutting element.
- the lower ends of all cams lie in a common, perpendicular to the vertical axis of the cutting element extending plane and thus serve for safe support on the lip at the inner end of the frame member.
- the screw cap has at least one internal force transmission element, which causes the first movement of the screw through the arranged inside the cutting element projecting cam, the movement of the cutting element.
- a power transmission element is preferably designed trapezoidal and concentric to the screw cap bent and facilitates the assembly process, the orientation of the screw with respect to the cutting element.
- a pouring element produced by the method according to the invention preferably has a tamper-evident seal.
- This can be formed by an integrally molded with the screw cap and radially projecting from this flat element, which is firmly connected to the flange of the frame member, wherein the
- FIG. 2A shows a frame element and an integrally molded with this cutting element before final assembly in a perspective view
- FIGS. 2A and 2B shows the pouring element according to the invention according to FIGS. 2A and 2B during the assembly in vertical section, wherein the screw cap already engages over the cutting element
- a preferred embodiment of a pouring element according to the invention is shown in order to make clear the method steps of its manufacture and its operation during opening.
- a pouring element according to the invention is shown in longitudinal section, consisting of a frame element 1, a single-piece injection-molded with the frame member 1 cutting element 2 and a screw 3.
- the frame member 1 has in its cylindrical Hauptkorper an external thread. 4
- the external thread 4 has in cross section a parallel to the mounting flange 5 extending lower edge 4B and an inclined upper edge 4T to allow a slight Uberpressen during assembly of the screw cap 3.
- an inwardly projecting cam 9 can be seen at the upper edge of the frame member 1, which serves as a guide or as a stop for the cutting element 2, which will be discussed in more detail below.
- the threaded sections 7A, 7A 'and 7B, 7B' now have a groove 10 running parallel to the lip 8, which is suitable for receiving the lip 8 when the cutting element 2 protrudes out of the frame element 1 (casting position).
- This horizontal groove 10 is particularly clear from Fig. 2B.
- TH / bs 070280WO Fig. 2A also shows that the cutting element 2 has at its upper periphery a plurality of cams 11 and 12, of which only the front of the respective opposite pairs can be seen. They are shown in the preferred and preferred
- teeth 13 of the cutting element 2 are also clearly visible. These teeth 13 have in the preferred and illustrated embodiment sharp edges.
- radially inwardly projecting cams 14, 14 ' can be seen, as can be seen particularly clearly from FIG. 2A.
- the frame element 1 is connected to the cutting element 2 via a plurality of connecting bridges 15, as also apparent from FIG.
- the screw cap 3 has an internal thread 16 corresponding to the pitch of the external thread 4 of the frame element 1 and an internal, essentially trapezoidal, and concentrically with the screw cap extending force transmission element 17.
- the force transmission element 17 causes the cutting element 2 with the aid of the inwardly projecting cams 14, 14 'at the first opening of the pouring element along the threaded portions 6 and 7
- Fig. 4 now shows the finished mounted pouring element in vertical section, wherein the axial movement of the applied screw cap 3 and the cutting element 2 has been moved axially into the interior of the frame member 1, without moving in rotation. It can be seen clearly that the tips of the teeth 13 are also arranged at a distance from the lower edge of the frame element 1.
- the force transmission element 17 can be dispensed with an exact positioning and alignment of the two structural parts.
- the connecting bridges 15 and the cutting element 2 is pushed into the frame member 1, wherein simultaneously the screw cap 3 is bounced on the frame member 1, so that the external thread 4 of the frame member 1 comes into contact with the internal thread 16 of the screw 3.
- the external thread 4 is provided with a sloped upper flank 4T, and formed horizontally with its lower flank 4B. In this way, it is easier to push the thread 16 over the inclined flank 4T during axial pushing together.
- the finished mounted pouring is reproduced in perspective again for clarity.
- the pouring element according to the invention also has a seal of originality:
- a plate 18 is injection-molded onto the screw cap 3 in one piece, which is connected to the screw cap 3 via connecting bridges 19, as clearly shown in FIG.
- the plate 18 has on its underside in the present case, two pins 20 which engage in corresponding recesses 21 (Fig. 2A) of the flange 5 from the frame member 1, which are caulked for firm connection from below.
- FIGS. 6 to 9 describe the function of the pouring element according to the invention during the first opening operation of the screw cap 3, which, however, is not shown for a better overview.
- the assembly position of FIGS. 4 and 5 is shown in Fig. 6.
- the inner cam 9 cooperate with the outer cam 11 and the end of einstuckig associated with the cam 11 extensions 7C and 7D of the threaded portions 7A and 7B. Unscrewing the cutting element 2 from the frame member 1 upwards is reliably prevented by this latching, since the cutting element 2 can rotate only by a counterclockwise rotation when unscrewing the screw 3.
- Fig. 7 now shows a state in which the teeth are just in contact with the film to be pierced (not shown). The axial force is thereby
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Cartons (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Packages (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07727724T PL1863717T3 (en) | 2006-04-04 | 2007-04-03 | Reclosable pouring element for composite cardboard/plastic packaging |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006016113A DE102006016113B3 (en) | 2006-04-04 | 2006-04-04 | Reclosable pouring unit for e.g. beverage package, has cams extending from upper edges of cutting unit, such that lower edges with thread sections of internal thread form stop unit for cutting unit pressed in inner side of frame |
PCT/EP2007/053253 WO2007115978A1 (en) | 2006-04-04 | 2007-04-03 | Reclosable pouring element for composite cardboard/plastic packaging |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1863717A1 true EP1863717A1 (en) | 2007-12-12 |
EP1863717B1 EP1863717B1 (en) | 2009-06-03 |
Family
ID=38123787
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07727724A Active EP1863717B1 (en) | 2006-04-04 | 2007-04-03 | Reclosable pouring element for composite cardboard/plastic packaging |
EP07727720A Active EP1868903B1 (en) | 2006-04-04 | 2007-04-03 | Reclosable pouring element for composite cardboard/plastic packaging |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07727720A Active EP1868903B1 (en) | 2006-04-04 | 2007-04-03 | Reclosable pouring element for composite cardboard/plastic packaging |
Country Status (16)
Country | Link |
---|---|
US (2) | US20080210745A1 (en) |
EP (2) | EP1863717B1 (en) |
KR (2) | KR20080114672A (en) |
CN (2) | CN101316765A (en) |
AR (1) | AR060305A1 (en) |
AT (2) | ATE432883T1 (en) |
AU (2) | AU2007236004A1 (en) |
BR (2) | BRPI0702839A (en) |
CA (2) | CA2603111A1 (en) |
DE (3) | DE102006016113B3 (en) |
EA (2) | EA013271B1 (en) |
ES (2) | ES2327974T3 (en) |
MX (2) | MX2007015317A (en) |
PL (2) | PL1863717T3 (en) |
TW (1) | TW200824982A (en) |
WO (2) | WO2007115978A1 (en) |
Cited By (1)
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US10676261B2 (en) | 2017-09-07 | 2020-06-09 | Silgan White Cap LLC | Closure assembly |
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ES2280726T3 (en) * | 2003-11-18 | 2007-09-16 | TETRA LAVAL HOLDINGS & FINANCE SA | OPENING DEVICE, WHICH CAN BE CLOSED AGAIN, FOR HERMETICALLY CLOSED CONTAINERS OF LAMINARY MATERIAL OF VERTIBLE FOOD PRODUCTS. |
US8020729B2 (en) * | 2005-11-07 | 2011-09-20 | Deltona Innovations Ag | Closable opening device produced with a semifinished product and method of fitting the same |
DE102006015525B3 (en) * | 2006-03-31 | 2007-08-02 | Sig Technology Ag | Screw cap closure for a plastics/cardboard container, for liquid foods, has a cutting unit within the base body with an interrupted thread for the screw cap to be assembled from above without screwing or pressure |
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2006
- 2006-04-04 DE DE102006016113A patent/DE102006016113B3/en not_active Expired - Fee Related
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2007
- 2007-04-03 EA EA200702017A patent/EA013271B1/en not_active IP Right Cessation
- 2007-04-03 TW TW096111831A patent/TW200824982A/en unknown
- 2007-04-03 CA CA002603111A patent/CA2603111A1/en not_active Abandoned
- 2007-04-03 BR BRPI0702839-3A patent/BRPI0702839A/en not_active IP Right Cessation
- 2007-04-03 WO PCT/EP2007/053253 patent/WO2007115978A1/en active Application Filing
- 2007-04-03 MX MX2007015317A patent/MX2007015317A/en active IP Right Grant
- 2007-04-03 CN CNA2007800003879A patent/CN101316765A/en active Pending
- 2007-04-03 MX MX2007015318A patent/MX2007015318A/en unknown
- 2007-04-03 BR BRPI0702842-3A patent/BRPI0702842A/en not_active IP Right Cessation
- 2007-04-03 DE DE502007000811T patent/DE502007000811D1/en active Active
- 2007-04-03 EA EA200702016A patent/EA013781B1/en not_active IP Right Cessation
- 2007-04-03 DE DE502007000808T patent/DE502007000808D1/en active Active
- 2007-04-03 AU AU2007236004A patent/AU2007236004A1/en not_active Abandoned
- 2007-04-03 PL PL07727724T patent/PL1863717T3/en unknown
- 2007-04-03 US US11/917,813 patent/US20080210745A1/en not_active Abandoned
- 2007-04-03 PL PL07727720T patent/PL1868903T3/en unknown
- 2007-04-03 CN CNA2007800003811A patent/CN101316764A/en active Pending
- 2007-04-03 AU AU2007221929A patent/AU2007221929A1/en not_active Abandoned
- 2007-04-03 KR KR1020087006211A patent/KR20080114672A/en not_active Application Discontinuation
- 2007-04-03 AT AT07727724T patent/ATE432883T1/en active
- 2007-04-03 EP EP07727724A patent/EP1863717B1/en active Active
- 2007-04-03 EP EP07727720A patent/EP1868903B1/en active Active
- 2007-04-03 US US11/917,393 patent/US20090302037A1/en not_active Abandoned
- 2007-04-03 AT AT07727720T patent/ATE432884T1/en active
- 2007-04-03 WO PCT/EP2007/053249 patent/WO2007115976A1/en active Application Filing
- 2007-04-03 CA CA002605163A patent/CA2605163A1/en not_active Abandoned
- 2007-04-03 ES ES07727720T patent/ES2327974T3/en active Active
- 2007-04-03 KR KR1020087006210A patent/KR20080114671A/en not_active Application Discontinuation
- 2007-04-03 ES ES07727724T patent/ES2327975T3/en active Active
- 2007-04-04 AR ARP070101442A patent/AR060305A1/en unknown
Non-Patent Citations (1)
Title |
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See references of WO2007115978A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10676261B2 (en) | 2017-09-07 | 2020-06-09 | Silgan White Cap LLC | Closure assembly |
US11718457B2 (en) | 2017-09-07 | 2023-08-08 | Silgan White Cap LLC | Closure assembly |
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