WO2023156950A1 - Closure for a spout of a thin-walled package - Google Patents
Closure for a spout of a thin-walled package Download PDFInfo
- Publication number
- WO2023156950A1 WO2023156950A1 PCT/IB2023/051442 IB2023051442W WO2023156950A1 WO 2023156950 A1 WO2023156950 A1 WO 2023156950A1 IB 2023051442 W IB2023051442 W IB 2023051442W WO 2023156950 A1 WO2023156950 A1 WO 2023156950A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cap
- spout
- closure assembly
- closure
- cam portion
- Prior art date
Links
- 230000003993 interaction Effects 0.000 claims abstract description 7
- 230000000295 complement effect Effects 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims description 8
- 238000011161 development Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 235000015897 energy drink Nutrition 0.000 claims description 2
- 235000015203 fruit juice Nutrition 0.000 claims description 2
- 235000013572 fruit purees Nutrition 0.000 claims description 2
- 235000013618 yogurt Nutrition 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- 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
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/02—Grip means
Definitions
- the present invention is in the field of thin-walled packages fitted with a spout, usually referred to as a "pouch".
- the present invention refers to a closure assembly for a spout of said package.
- closures for spouts made of plastics material, consist of a cap and a spout which are respectively threaded.
- the cap screws onto the spout to close the package and prevent the liquid from leaking out.
- Fig. la to le are five perspective views of a package in a preferred embodiment, in different configurations;
- Fig. 2a to 2e are five sectional views of the package in Fig. la to le;
- Fig. 3a to 3d are four front views of a closure assembly of the package in a preferred embodiment, in different configurations;
- Fig. 4a to 4d and 5a to 5d are sectional views of the closure assembly of Fig. 3a to 3d in two different sectional planes;
- Fig. 6 is a front view of the closure assembly in a second preferred embodiment
- Fig. 7a and 7b are two enlargements of a guarantee seal of the closure assembly in two different embodiments;
- FIG. 8 and 9 are two front sectional views of the closure assembly in two different embodiments
- - Fig. 8a and 9a are two enlargements of the box V-V and VI-VI of Fig. 8 and 9;
- FIG. 10 is an enlargement of the box VII-VII of Fig. 8;
- FIG. 11 is a front sectional view of a spout unit of the closure assembly according to a preferred embodiment
- FIG. 12 and 13 are two front views of a closure of the closure assembly, according to two different embodiments.
- FIG. 14 to 18 are perspective views of the closure assembly in further embodiments.
- reference sign 1 has been used to indicate a closure assembly of a thin-walled package, usually referred to as a "pouch".
- Said package comprises a bag for containing the product.
- the package comprises a front wall and a rear wall which face each other and are formed by a flexible, monolayer or multilayer film.
- the walls 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.
- the closure assembly 1 comprises a spout unit 2 which extends along a spout axis X-X and is preferably made of plastics material in a single piece, by injection molding.
- the spout unit 2 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, to an upper end 14b in which a mouth 16 for dispensing the product is found.
- the spout unit 2 comprises a connection portion 20, referred to as a "weld boat,” which is suitable for being sealingly applied to the bag, preferably between the top edges of the walls, for example by welding.
- the spout unit 2 comprises a lower plate 22 orthogonal to the spout axis X-X.
- connection portion 20 is axially delimited at the top by this lower plate 22.
- the spout unit 2 further comprises an upper plate 24, also orthogonal to the spout axis X-X, preferably axially spaced from the lower plate 22.
- the upper plate 24 has two opposing straight edges 23', 23'’ connected by two leading edges 27', 27'’ which are, for example, arched.
- the plate 22 also comprises said straight edges 23', 23'’ and said leading edges 27', 27’’.
- the spout unit 2 comprises a spout 10.
- the spout 10 extends axially from the upper plate 24 and ends with the mouth 16.
- the spout unit 2 further comprises an engagement plate 26, preferably orthogonal to the spout axis X-X and projecting radially outward from the outer side surface of the spout 10.
- 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.
- a ring seat 100 is formed between the engagement plate 26 and the second plate 24.
- the spout 10 comprises an inner surface 13, in particular which radially delimits the spout duct 12. Furthermore, the spout 10 comprises an outer surface 15 facing the external environment.
- the spout unit 2 also comprises at least one spout cam portion 25 made on the inner surface 13.
- said spout cam portion 25 has an extension of at least a quarter of the circumference .
- spout cam portion does not include the profile of a thread. Indeed, the present invention intends to avoid the use of a thread on the spout, in order to lighten it.
- a thread consists of a protrusion (thread) which winds continuously or continuously in sections, helically, on the outer surface of a cylindrical or conical element (screw) or on the inner surface of a similar element (nut screw), extending axially along them.
- thread is a protruding helical rib which allows the parts to be screwed together.
- the cam is an element that extends circumferentially, generally eccentrically, and is suitably shaped.
- the spout cam portion 25 is made protruding radially from the inner surface 13.
- the spout cam portion 25 is made in an upper portion of the spout 10, i.e. close to the mouth 16. [0027]Preferably, the spout cam portion 25 defines an upper cam surface 250, inclined with respect to the spout axis X-X. Preferably, the upper cam surface 250 has an extension equal to at least one quarter of the circumference .
- the upper cam surface 250 of the spout cam portion 25 has an arcuate shape with a lowered center so as to define two opposite slopes.
- the center is lowered with respect to the mouth 16 and a first and second end are close to such mouth 16.
- the spout cam portion 25 has an extension equal to half of the circumference.
- the upper cam surface 250 has a flattened center and/or the arc does not necessarily have a constant radius.
- the upper cam surface 250 has a single inclined surface, i.e. one end is proximal with respect to the mouth 16 and one end is lowered with respect to the mouth 16.
- the spout unit 2 comprises a plurality of spout cam portions 25, preferably comprises two spout cam portions 25, diametrically opposite and arranged symmetrically with respect to the spout axis X-X.
- the spout cam portions 25 have an extension equal to half of the circumference and the ends of one are close to the ends of the other, preferably in contact so as to form a single spout cam portion 25 in which high sections 162, proximal to the mouth 16, and low sections 164, distal to the mouth 16, alternate.
- the spout 10 externally, in the vicinity of the mouth 16, comprises an enlarged spout lip 28.
- the spout lip 28 Preferably, below said spout lip
- the spout 10 comprises a retractable spout backing
- the closure assembly 1 further comprises a closure 3 applicable to the spout unit 2 and comprises a cap unit 4.
- the closure 3 comprises a handle 40, preferably made in one piece with the cap unit 4.
- the closure 3 comprises an over-cap 5, preferably made separately from the cap unit 4 and subsequently joined to it.
- the cap unit 4 comprises a cap 30, having a central cap axis Y-Y and comprising an annular cap wall 31 and a cap base 32 which closes the cap wall 31 at one end.
- the cap wall 31 comprises a lower edge 33.
- the lower edge 33 is positioned at the end of the cap wall 31 opposite to that of the cap base 32.
- the cap unit 4 further comprises a guarantee seal 34 comprising a guarantee ring 36, a guarantee band 38, and a plurality of breakable bridges 60 joining the guarantee ring 36 to the guarantee band 38 and the guarantee band 38 to the cap wall 31, preferably to the lower edge 33.
- the guarantee band 38 which extends between an initial portion 37 and an end portion 39, is wound about the cap axis Y-Y in a circumferential pattern, whereby, in an unbroken seal configuration, the initial portion 37 is circumferentially opposite the end portion 39 and spaced apart therefrom.
- the guarantee band 38 also overlaps the guarantee ring 36, from which it is separated axially by a first separation line 62, along which some bridges 60 are arranged.
- the cap wall 31 in turn axially overlaps the guarantee band 38, from which it is separated axially by a second separation line 64, along which some bridges 60 are arranged.
- the guarantee seal 34 further comprises a first attachment portion 66, which is more resistant than the breakable bridges 60 and joins the guarantee band 38, and in particular the initial portion 37 thereof, to the guarantee ring 36.
- the guarantee seal 34 further comprises a second attachment portion 68, which is more resistant than the bridges 60 and joins the guarantee band 38, and in particular the end portion 39 thereof, to the cap wall 31, preferably to the lower edge 33.
- the bridges 60 are configured to preferentially break at the attachment zone with the guarantee band 38, whereby any residual protrusions remaining after the first opening remain attached to the guarantee ring 36 or to the cap wall 31, leaving the guarantee band 38 free of protrusions.
- the bridges 60 have a cross section with a decreasing resistance from the guarantee band 38 toward the guarantee ring 36 or toward the cap wall 31, whereby, at the attachment zone with the guarantee ring 36 or with the cap wall 31, the cross section is small and particularly weak.
- the first separation line 62 and the second separation line 64 have at least in part a wavy circumferential development, so that also the cap wall 31, the guarantee band 38 and the guarantee ring 36 have at least partially a wavy circumferential development, axially interpenetrating each other and forming ridges and respective hollows, i.e. protrusions and respective recesses.
- the guarantee ring 36 comprises a ring wall 360 comprising a ring upper face 36a, which delimits the ring wall 360 at the top.
- the ring wall 360 also comprises a lower face 36b, for example in the form of a circular crown lying on an imaginary plane orthogonal to the cap axis Y-Y, a cylindrical outer side surface 36c and an inner side surface 36d.
- the ring upper face 36a consists of a corrugated surface, preferably sinusoidal, comprising at least one ring ridge 96 and/or one ring hollow 86, preferably which follow each other circumferentially .
- each ring hollow 86 has a bottom ring surface 86', while each ring ridge 96 has a ring ridge surface 96'.
- the bottom ring surface 86' and the ring ridge surface 96' are curved surfaces.
- the cap wall [0050]According to a preferred embodiment, the cap wall
- the cap lower face 31b consists of a corrugated surface, preferably sinusoidal, comprising at least one cap ridge 80 and/or at least one cap hollow 90, preferably which follow each other circumferentially.
- each ring cap hollow 90 has a bottom cap surface 90', while each cap ridge 80 has a cap ridge surface 80'.
- the bottom cap surface 90' and the cap ridge surface 80' are curved surfaces.
- the guarantee band 38 comprises an upper band face 38a and a lower band face 38b.
- the upper band face 38a and the lower band face 38b consist of a corrugated surface, preferably sinusoidal.
- the upper band face 38a comprises at least one band ridge 92 and/or at least one band hollow 82, preferably following one another circumferentially.
- the lower band face 38b comprises at least one band ridge 84 and at least one band hollow 94, preferably following one another circumferentially.
- a band hollow 82 is located at a band ridge 84 and a band ridge 92 is located at a band hollow 94.
- the band depression 82 overlies the band ridge 84 and is aligned axially therewith; the band ridge 92 overlies the band depression 94 and is axially aligned therewith.
- Each band hollow 82, 94 has a cap bottom surface 82', 94', while each band ridge 84, 92 has a band ridge surface 84', 92'; preferably, they are curved surfaces.
- a cap ridge 80 is contained within a relevant band hollow 82 and a band ridge 84 is contained within a relevant ring hollow 86. Furthermore, a ring ridge 96 is contained within a relevant band hollow 94, and a band ridge 92 is contained within a relevant cap hollow 90.
- the cap wall 31 has at least one axial projection 80, which corresponds to the relevant axial indent 82 of the guarantee band 38.
- the guarantee band 38 has an axial projection 84, which corresponds to the relevant axial indent 86 of the guarantee ring 36.
- the cap wall 31 has at least one axial indent 90 which corresponds to the relevant axial projection 92 of the guarantee band 38.
- the guarantee band 38 has an axial indent 94, which corresponds to the relevant axial projection 96 of the guarantee ring 36.
- the first attachment portion 66 and the second attachment portion 68 are positioned in axial correspondence with a leading edge 27', 27".
- the over-cap 5 preferably made of plastics material in a single piece, for example by injection molding, comprises an annular grip 50.
- the grip 50 is spaced radially outward from the cap 30, preferably from the cap wall 31.
- the over-cap 5 further comprises flaps 52 which make the grip 50 integral with the cap 30.
- the grip 50 has a grip opening 55 at the top, i.e., on the side of the cap base 32, which grip opening is delimited by an opening edge 550 that overlaps the cap base 32 and is arranged axially spaced therefrom.
- the handle 40 comprises two wing portions 41 extending, from the cap wall 31, substantially on an imaginary plane containing the cap axis Y-Y, in two opposite directions.
- said wing portions 41 comprise panel portions 42 and reinforcing ribs 43 integral with said panel portions 42.
- the handle 40 comprises a gripping blade 45, for example protruding axially from the cap base 32 and/or protruding radially from the cap wall 31, and is also provided with a peripheral edge 46 which is enlarged with respect to the gripping blade 45.
- the gripping blade 45 has a flat shape, lying substantially on the imaginary plane which contains the cap axis Y-Y.
- the gripping blade 45 extends mainly along an axis substantially orthogonal to the cap axis Y-Y; preferably, the peripheral edge 46 is positioned above the gripping blade 45.
- the cap unit 4 comprises a clearance element 48, preferably positioned on the cap base 32.
- the closure 3 is made of plastics material in a single piece, for example by injection molding.
- the guarantee ring 36 is at least partially housed in the ring seat 100, unable to be withdrawn axially, except by damage.
- the guarantee band 38 is located outside of the ring seat 100, above the engagement plate 26.
- the guarantee ring 36 is freely rotatable in the ring seat 100.
- locking means are provided which prevent or limit the free rotation of the guarantee ring 36 in the ring seat 100.
- a continuous or discontinuous upper protrusion 362 is also present on the inner side surface 36d, so that a continuous or discontinuous plate housing 365 is formed between the lower protrusion 361 and the upper protrusion 362, for housing the engagement plate 26.
- a plurality of openings 37 are formed in the guarantee ring 36 so that the guarantee ring 36 is more flexible.
- the cap unit 4 comprises a drip-catching device 15 suitable for sealingly engaging the spout 10, so that the product contained in the packaging does not escape, in particular when the package is turned upside down.
- the drip-catching device 15 comprises a drip-catching ring 18 internally integrated with the cap base 32, i.e. inside the cap 30.
- the cap unit 4 comprises an annular housing 17 between the cap wall 31 and the drip-catching ring 18, suitable for housing the spout 10, preferably the spout lip 28 in a closed configuration, for example by means of interlocking engagement.
- said engagement is with interference.
- the dripcatching ring 18 comprises a reinforcing ring 180, positioned at the base of the drip-catching ring 18 in proximity to the cap base 32.
- This reinforcing ring 180 allows an engagement with interference to be obtained preferably between the inner surface 13 of the spout 10 and the drip-catching ring 18.
- a radially protruding engagement element 310 is formed internally in the cap wall 31.
- said engagement element 310 is positioned below the annular housing 17.
- said engagement element 310 in a closed configuration in which the cap 3 is engaged with the spout 10, is suitable for engaging the spout backing 29 so as to cause an audible signal upon correct engagement.
- the cap unit 4 comprises at least one cap cam portion 35. This cap cam portion 35 extends internally starting from the cap base 32. Preferably, the cap cam portion 35 has an extension equal to a quarter of the circumference.
- This cap cam portion 35 is at least partially complementary to the spout cam portion 25.
- cap cam portion does not include the profile of a thread. Indeed, the present invention intends to avoid the use of a thread on the cap, in order to lighten it.
- the cap cam portion 35 defines a lower cam surface 350, inclined with respect to the cap axis Y- Y and having an extension equal to at least a quarter of the circumference.
- the lower cam surface 350 has an arcuate shape with a lowered center so as to define two opposite slopes.
- the center is lowered with respect to the cap base 32 and a first and second end are close to this cap base 32.
- the cap cam portion 35 has an extension equal to half of the circumference.
- the lower cam surface 350 has a flattened center and/or the arc does not necessarily have a constant radius.
- the lower cam surface 350 has a single inclined surface, i.e. one end is proximal with respect to the cap base 32 and one end is lowered with respect to the cap base 32.
- the closure 3 comprises a plurality of cap cam portions 35, preferably comprises two cap cam portions 35, diametrically opposite and arranged symmetrically with respect to the cap axis Y-Y.
- the cap cam portions 35 have an extension equal to half of the circumference and, in this way, the ends of one are close to the ends of the other, preferably in contact so as to form a single cap cam portion 25 in which high sections 322, proximal to the cap base 32, and low sections 324, distal to the cap base 32, alternate.
- the cap 30 is positioned on the spout 10, the at least one cap cam portion 35 engages the at least one spout cam portion 25, and preferably the upper cam surface 250 is at least partially in contact with the lower cam surface 350.
- the spout lip 28 is housed in the housing 17.
- a disengagement configuration by rotating the cap 3 with respect to the spout 10 around the cap axis Y- Y, preferably by at least a quarter turn, the interaction between the at least one cap cam portion 35 and the at least one spout cam portion 25, preferably the contact engagement between the upper cam surface 250 and the lower cam surface 350, causes an axial lifting of the cap 3 with respect to the spout 10.
- the cam portions 25, 35 are such as to allow rotation of the cap 3 both in a clockwise and counter-clockwise direction.
- This embodiment is characterized by the presence of cam portions 25, 35, the cam surfaces 250, 350 of which have an arcuate shape comprising two opposite slopes, as described above.
- closure assembly forming the subject of the present invention fully achieves the proposed object whilst overcoming the drawbacks discussed above in reference to the prior art.
- the closure assembly is lighter due to a smaller quantity of plastics material used with respect to the known closure assembly solutions.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102022000002978 | 2022-02-17 | ||
IT102022000002978A IT202200002978A1 (it) | 2022-02-17 | 2022-02-17 | Chiusura per una cannuccia di un imballo a pareti sottili |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023156950A1 true WO2023156950A1 (en) | 2023-08-24 |
Family
ID=81580492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2023/051442 WO2023156950A1 (en) | 2022-02-17 | 2023-02-17 | Closure for a spout of a thin-walled package |
Country Status (2)
Country | Link |
---|---|
IT (1) | IT202200002978A1 (it) |
WO (1) | WO2023156950A1 (it) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002104447A (ja) * | 2000-09-22 | 2002-04-10 | Daiwa Can Co Ltd | 袋状容器の蓋付き注出口 |
FR2892096A1 (fr) * | 2005-10-17 | 2007-04-20 | Sk Freres | Ensemble de bouchage pour emballage et procede d'obturation d'emballage. |
JP2008056271A (ja) * | 2006-08-30 | 2008-03-13 | Japan Crown Cork Co Ltd | キャップ一体型注出具 |
US10293988B2 (en) * | 2015-03-05 | 2019-05-21 | Aptargroup, Inc. | Fitment and overcap therefor |
WO2019123037A1 (en) * | 2017-12-18 | 2019-06-27 | Guala Pack S.P.A. | Cap and cap-spout assembly |
WO2020221801A1 (en) * | 2019-04-30 | 2020-11-05 | Scholle Ipn Ip B.V. | A closure assembly comprising a cap with integrated tamper-evident ring and strap |
-
2022
- 2022-02-17 IT IT102022000002978A patent/IT202200002978A1/it unknown
-
2023
- 2023-02-17 WO PCT/IB2023/051442 patent/WO2023156950A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002104447A (ja) * | 2000-09-22 | 2002-04-10 | Daiwa Can Co Ltd | 袋状容器の蓋付き注出口 |
FR2892096A1 (fr) * | 2005-10-17 | 2007-04-20 | Sk Freres | Ensemble de bouchage pour emballage et procede d'obturation d'emballage. |
JP2008056271A (ja) * | 2006-08-30 | 2008-03-13 | Japan Crown Cork Co Ltd | キャップ一体型注出具 |
US10293988B2 (en) * | 2015-03-05 | 2019-05-21 | Aptargroup, Inc. | Fitment and overcap therefor |
WO2019123037A1 (en) * | 2017-12-18 | 2019-06-27 | Guala Pack S.P.A. | Cap and cap-spout assembly |
WO2020221801A1 (en) * | 2019-04-30 | 2020-11-05 | Scholle Ipn Ip B.V. | A closure assembly comprising a cap with integrated tamper-evident ring and strap |
Also Published As
Publication number | Publication date |
---|---|
IT202200002978A1 (it) | 2023-08-17 |
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