WO2023012663A1 - Fermeture pour bec verseur d'emballage à paroi mince - Google Patents

Fermeture pour bec verseur d'emballage à paroi mince Download PDF

Info

Publication number
WO2023012663A1
WO2023012663A1 PCT/IB2022/057163 IB2022057163W WO2023012663A1 WO 2023012663 A1 WO2023012663 A1 WO 2023012663A1 IB 2022057163 W IB2022057163 W IB 2022057163W WO 2023012663 A1 WO2023012663 A1 WO 2023012663A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
spout
closure assembly
cheek
guarantee
Prior art date
Application number
PCT/IB2022/057163
Other languages
English (en)
Inventor
Alberto Buzzi
Original Assignee
Guala Pack S.P.A.
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 Guala Pack S.P.A. filed Critical Guala Pack S.P.A.
Publication of WO2023012663A1 publication Critical patent/WO2023012663A1/fr

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
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0485—Threaded or like caps or cap-like covers secured by rotation with means specially adapted for facilitating the operation of opening or closing
    • 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
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/16—Devices preventing loss of removable closure members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/30—Tamper-ring remaining connected to closure after initial removal

Definitions

  • the present invention is in the field of thin-walled packages fitted with a spout, which packages are usually referred to as a "pouch".
  • the present invention refers to a closure assembly for a spout of said package.
  • spout closures which are made of plastics material, comprise a cap and a guarantee seal, which comprises a guarantee ring joined to the cap by a plurality of breakable bridges.
  • a guarantee seal which comprises a guarantee ring joined to the cap by a plurality of breakable bridges.
  • the cap that remains connected to the spout hinders the use of the spout itself. It is not uncommon, in fact, that, when using the spout, the cap touches the region around the lips, thus annoying the user.
  • the object of this invention is to make a closure assembly for a spout of a thin-walled package that meets the aforesaid requirements and is particularly comfortable to use.
  • FIG. la and lb show a package comprising the closure assembly that is the object of the present invention in a preferred embodiment thereof, in a perspective view and in a front view, respectively;
  • FIG. 2a through 2c depict a spout group of the closure assembly in a perspective view, in a front view and in a side view, respectively;
  • FIG. 3a through 3e depict a spout group of the closure assembly, according to various embodiments
  • FIG. 4a through 4e depict the cross section of an engagement plate of the spout group according to the embodiments of Fig. 3a through 3e, along the cross- sectional plane A-A in Fig. 3a through 3e;
  • FIG. 5a and 5b depict two front views of a closure according to an embodiment of the present invention.
  • Fig. 6a and 6b are longitudinal cross sections of the closure of Fig. 5a and 5b, respectively;
  • FIG. 7a shows a closure in an initial open configuration
  • FIG. 7b is an enlargement of a detail in Fig. 7a, showing a breakable segment of the guarantee seal
  • FIG. 7c is an enlargement of a detail in Fig. 7a, showing breakable bridges of the guarantee seal;
  • FIG. 8a through 8d depict a closure according to another embodiment of the invention
  • FIG. 9a through 9d depict a closure according to yet another embodiment of the invention
  • FIG. 10a and 10b are two cross sections of a closure assembly according to an embodiment of the present invention.
  • FIG. 11a and lib depict a package according to the present invention in a use configuration
  • Fig. 12 shows a cross section of a portion of the package of Fig. 11a
  • FIG. 13a through 13c depict three perspective views of the closure assembly in two configurations
  • FIG. 14 is an enlargement of a detail in Fig. 5a, showing a first attachment portion of the guarantee seal;
  • Fig. 15 is a cross section of the first attachment portion of Fig. 14, along the cross-sectional plane B-B in Fig. 14.
  • reference sign 1 has been used to indicate a closure assembly of a thin-walled package 500, usually referred to as a "pouch".
  • Said package 500 comprises a bag 2 for containing the product.
  • the package 500 comprises a front wall 4 and a rear wall 6 which face each other and are formed by a flexible, monolayer or multilayer film.
  • the walls 4, 6 are welded together along the side edges or, in an embodiment variant, sides are provided which are made of flexible film and welded to the walls 4, 6.
  • the closure assembly 1 comprises a spout group 10 which extends along a spout axis X-X and is typically made of plastics material in a single piece, by injection molding.
  • the spout group 10 has an internal spout duct 12 extending along the spout axis X-X from a lower end 14a, intended to be contained in the bag 2, to an upper end 14b in which a mouth 16 for dispensing the product is found.
  • the spout group 10 comprises a connecting portion 20, referred to as a "weld boat,” which is suitable for being sealingly applied to the bag 2, preferably between the top edges of the walls 4, 6, for example by welding.
  • the spout group 10 comprises a first plate 22 orthogonal to the spout axis X-X.
  • the connecting portion 20 is axially delimited by this first plate 22.
  • the spout group 10 further comprises a second plate 24, also orthogonal to the spout axis X-X, and axially spaced from the first plate 22.
  • the second plate 24 has two opposing straight edges 25', 25'' connected by two leading edges 26', 26'' which are, for example, arched.
  • the spout group 10 further comprises a threaded spout 30.
  • the spout 30 extends axially from the second plate 24 and ends with the mouth 16.
  • the spout group 10 further comprises an engagement plate 26, which is orthogonal to the spout axis X-X and projects radially outward from the outer side surface of the spout 30.
  • the projection of the shape of the engagement plate 26 along the spout axis X-X onto the second plate 24 is entirely contained within said second plate 24, so as not to interfere with the movement of the packages along the filling lines.
  • said engagement plate 26 has a cross section having various shapes (Fig. 4a through 4e): cylindrical circular crown shape; cylindrical circular crown chamfered by straight portions at the straight edges 25', 25'' of the second plate 24; grooved with arched edges; grooved with straight edges; cylindrical circular crown chamfered by mixed straight and arched segments.
  • a ring seat 100 is formed between the engagement plate 26 and the second plate 24. Furthermore, a coupling seat 120 is formed between the first plate 22 and the second plate 24.
  • the spout group 10 comprises a coupling region 110, which will be discussed below .
  • the closure assembly 1 further comprises a closure 40 applicable to the spout group 10.
  • the closure 40 comprises a cap group 42.
  • the cap group 42 comprises a cap 46 screwable to the spout 30 and extends along a cap axis Y-Y, and an overcap 44, which are preferably made separately and joined together.
  • the cap 46 comprises an annular, internally threaded cap wall 48, a cap base 50 which closes the cap wall 48 at one end, and a cap flange 52, radially projecting outward from the cap wall 48 at the other end.
  • the closure 40 further comprises a guarantee seal 54 to highlight the first opening of the closure 40.
  • Said guarantee seal 54 comprises a guarantee ring 56, an annular guarantee band 58 and a plurality of breakable bridges 60.
  • the guarantee ring 56 is axially constrained to the spout 30, for example arranged in the ring seat 100, between the second plate 24 and the engagement plate 26.
  • the guarantee band 58 in an unbroken seal configuration, is axially overlapped on the guarantee ring 56, from which it is axially separated by a first separation line 62 along which bridges 60 are arranged; the cap flange 52 is in turn axially overlapped on the guarantee band 58, from which it is axially separated by a second separation line 64 along which further bridges 60 are arranged.
  • the plurality of bridges 60 join the guarantee band 58 to the guarantee ring 56 and the guarantee band 58 to the cap flange 52.
  • the guarantee band 58 extends between an initial portion 58a and an end portion 58b, and is wound about the cap axis Y-Y in a circumferential pattern, whereby, in an unbroken seal configuration, the initial portion 58a is circumferentially adjacent to the end portion 58b and spaced apart therefrom.
  • the guarantee seal 54 further comprises a first attachment portion 66, which is more resistant than the bridges 60 and joins the guarantee band 58, and in particular the initial segment 58a thereof, to the guarantee ring 56.
  • the guarantee seal 54 further comprises a second attachment portion 68, which is more resistant than the bridges 60 and joins the guarantee band 58, and in particular the end segment 58b thereof, to the cap 46, and in particular to the cap flange 52.
  • the guarantee seal 54 comprises a breakable segment 70 which extends predominantly circumferentially and joins the initial portion 58a of the band 58 to the end portion 58b.
  • the breakable segment 70 is configured to encounter a preferential break at the initial segment 58a, whereby the part remaining after the first opening remains attached to the end segment 58b (Fig. 7a and 7b).
  • the breakable segment 70 has a cross section with decreasing resistance from the end segment 58b to the initial segment 58a.
  • the bridges 60 are configured to preferably break at the guarantee band 58, whereby any residual protrusions remaining after the first opening remain attached to the guarantee ring 56 or to the cap flange 52, leaving the guarantee band 58 free of protrusions (Fig. 7a and 7c).
  • the bridges 60 have a cross section with decreasing resistance from the guarantee band 58 toward the guarantee ring 56 or toward the cap flange 52, whereby, at the guarantee ring 56 or at the cap flange 52, the cross section is small and particularly weak.
  • the first separation line 62 has a Greek fret (Fig. 8a through 8d) or wavy circumferential pattern (Fig. 9a through 9d), whereby the guarantee band 58 and the guarantee ring 56 interpenetrate axially, forming projections and respective indents.
  • the guarantee band 58 has at least one axial projection 80, which corresponds to the relevant axial indent 82 of the guarantee ring 56.
  • the guarantee ring 56 has at least one axial projection 84 which corresponds to the relevant axial indent 86 of the guarantee band 58.
  • the attachment of the guarantee band 58 to the guarantee ring 56 and to the cap 46 is configured such that if the cap is pulled so that it causes a break and separation from the spout group 10 this breakage preferably occurs at the attachment between the guarantee band 58 and the guarantee ring 56.
  • the resistant cross section of the first attachment portion 66 is smaller than the resistant cross section of the second attachment portion 68 and the resistant cross section of the guarantee band 58, so as to cause preferential breakage in this region (Fig. 14 and 15).
  • the over-cap 44 preferably made of plastics material in a single piece, for example by injection molding, comprises an annular grip 92.
  • the grip 92 is spaced radially outward from the cap 46, preferably from the cap wall 48.
  • the over-cap 44 further comprises flaps 93 which make the grip 92 jointed with the cap 46.
  • the grip 92 has a grip opening 94 at the top, i.e., on the side of the cap base 50, which grip opening is delimited by an opening edge 108 that overlaps the cap base 50 and is arranged axially spaced therefrom.
  • the grip 92 has a perimeter edge 98 substantially coplanar with the lower edge of the cap wall 48, below which the cap flange 52 is located.
  • the closure 40 is made of plastics material in a single piece, for example by injection molding.
  • the guarantee ring 56 is at least partially received in the ring seat 100, from which it is impossible to be pulled out axially without damaging it.
  • the guarantee band 58 is located outside of the ring seat 100, above the engagement plate 26.
  • the guarantee ring 56 is freely rotatable in the ring seat 100.
  • locking means are provided which prevent or limit the free rotation of the guarantee ring 56 in the ring seat 100.
  • the guarantee band 58 forms a strap 58' which connects the cap group 42 to the guarantee ring 56.
  • the breakable segment 70 breaks, as do the bridges 60, so that after unscrewing, the guarantee band 58 takes the form of the strap 58', connected to the guarantee ring 56 by the first attachment portion 66 and to the cap 46, and in particular to the cap flange 52, by the second attachment portion 68.
  • the closure 40 although unscrewed from the spout 30, thus remains connected to the spout group 10.
  • the over-cap 44 comprises a coupling portion 95.
  • the closure assembly 100 provides that the coupling portion 95 is engaged with the coupling region 110 of the spout group 10 in order to retain the cap group 42 in a predefined position with respect to said spout 30.
  • the strap 58' constitutes a permanent connection between the cap group 42 and the spout group 10.
  • the engagement between the coupling portion 95 of the cap 42 and the coupling region 110 of the spout 30 may be achieved only when the cap group 42 is unscrewed from the spout 30 and allows the cap group 42 to be kept in a predefined position with respect to the spout 30, such as not to cause discomfort to the user when the spout 30 is between the lips.
  • said coupling region 110 is positioned below the engagement plate 26, so as to be sufficiently distant from the mouth 16.
  • the cap group 42 is arranged so that the cap axis Y-Y lies on an imaginary plane substantially orthogonal to the longitudinal axis X-X of the spout group 10.
  • the grip 92 of the over-cap 44 comprises said coupling portion 95.
  • the grip 92 extends axially from a lower end to an upper end. At the lower end, the grip 92 has an undulated, for example continuous, grip edge made up of a succession of low segments and high segments that are joined to each other.
  • the grip 92 comprises a grip body 96 and a cheek 97.
  • This cheek 97 is a portion of the grip 92 that extends from the grip body 96.
  • the course of the grip edge is such that it forms at least the cheek 97, which consists of a portion of the grip which extends between the high segment and the low segment.
  • the course of the grip edge forms at least one window of the grip, which is delimited on the upper side by the high segment and preferably not delimited on the lower side.
  • the grip 92 is preferably made of plastics material in a single piece, for example by injection molding.
  • said cheek 97 axially protrudes from the grip body 96 with respect to the cap axis Y-Y.
  • the cheek 97 axially protrudes from the grip body 96 in the direction of the cap flange 52.
  • the cheek 97 axially protrudes from the grip body 96 in the direction of the grip opening 94.
  • the cheek 97 comprises a cheek segment 97a which creates said coupling portion 95.
  • the coupling seat 120 of the spout group 10 forms said coupling region 110.
  • the cheek 97 comprises an outer surface 97' and an inner surface 97'', which will be discussed later.
  • the cheek 97 comprises a reinforcing element 197 which makes the cheek 97, preferably the inner surface 91'', jointed with the cap 46.
  • said reinforcing element 197 forms the extension of a flap 93.
  • the cheek 97 further comprises a cheek tooth 297 extending radially from the inner surface 91''. This means that, in the use configuration, the cheek tooth 297 engages the first plate 22, while the outer surface 91'' engages the second plate 24.
  • said cheek tooth 297 forms the extension of the reinforcing element 197.
  • the over-cap 44 has a plurality of coupling portions 95.
  • the over-cap 44 comprises two coupling portions 95, arranged symmetrically with respect to the cap axis Y-Y.
  • the grip 92 comprises said cheek 97 and a further cheek 97 which is symmetrical to the cheek 97 with respect to the cap axis Y-Y.
  • the over-cap 44 preferably has two cheeks 97 and two windows, which are preferably symmetrical.
  • the coupling portion 95 of the cap group 42 is engaged with the coupling region 110 of the spout group 10, so as to retain the cap group 42 in a predefined position with respect to the spout group 10, such as not to hinder the use of the spout 30.
  • the engagement between the coupling portion 95 and the coupling region 110 is a pressure engagement, obtained by forced insertion of the coupling portion 95 into the coupling region 110, for example of the cheek portion 97a into the coupling seat 120 of the spout group 10.
  • the engagement between the coupling portion 95 and the coupling region 110 is a snap-in engagement.
  • the engagement between the coupling portion 95 and the coupling region 110 is a positive-fit engagement, i.e. between a shaped element of the coupling portion 95 and a counter-shaped element of the coupling region 110, with or without forcing.
  • the closure assembly according to the present invention achieves the aforementioned object since it satisfies the needs of the sector.
  • the closure assembly is provided with a guarantee seal and allows the cap and the grip to be kept connected to the spout group, even after opening the package, thus keeping the cap in a position where it does not hinder the use of the spout.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un ensemble de fermeture (1) pour un emballage (500) avec un sac souple à paroi mince (2) comprenant un groupe bec verseur (10) pourvu d'une région de couplage (110) et d'une fermeture (40) comportant un groupe capuchon comprenant une partie de couplage (95) et un scellage de garantie (54). Le scellage de garantie (54) comprend un anneau de garantie (56), une bande de garantie (58) et une pluralité de ponts cassables (60). Dans une configuration ouverte, la bande de garantie (58) forme une sangle (581) qui maintient le capuchon (46) relié à la bague de garantie (56); et dans une configuration d'utilisation, le groupe capuchon (42) est dans une position prédéfinie par rapport au bec verseur (30).
PCT/IB2022/057163 2021-08-04 2022-08-02 Fermeture pour bec verseur d'emballage à paroi mince WO2023012663A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000021059A IT202100021059A1 (it) 2021-08-04 2021-08-04 Chiusura per una cannuccia di un imballo a pareti sottili
IT102021000021059 2021-08-04

Publications (1)

Publication Number Publication Date
WO2023012663A1 true WO2023012663A1 (fr) 2023-02-09

Family

ID=78536476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2022/057163 WO2023012663A1 (fr) 2021-08-04 2022-08-02 Fermeture pour bec verseur d'emballage à paroi mince

Country Status (2)

Country Link
IT (1) IT202100021059A1 (fr)
WO (1) WO2023012663A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007204124A (ja) * 2006-02-02 2007-08-16 Japan Crown Cork Co Ltd キャップ保持部を有するスパウト
US20080073348A1 (en) * 2006-09-27 2008-03-27 Daniel PRITIKIN Container closure assembly
US20080197135A1 (en) * 2007-02-20 2008-08-21 Berman Ronald H Beverage spout with safety tether
US20190168924A1 (en) * 2016-07-29 2019-06-06 Guala Pack S.P.A. Closure with tamper-evident band

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007204124A (ja) * 2006-02-02 2007-08-16 Japan Crown Cork Co Ltd キャップ保持部を有するスパウト
US20080073348A1 (en) * 2006-09-27 2008-03-27 Daniel PRITIKIN Container closure assembly
US20080197135A1 (en) * 2007-02-20 2008-08-21 Berman Ronald H Beverage spout with safety tether
US20190168924A1 (en) * 2016-07-29 2019-06-06 Guala Pack S.P.A. Closure with tamper-evident band

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Publication number Publication date
IT202100021059A1 (it) 2023-02-04

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