WO2009046553A1 - Système de bouchage en matière plastique - Google Patents

Système de bouchage en matière plastique Download PDF

Info

Publication number
WO2009046553A1
WO2009046553A1 PCT/CH2008/000402 CH2008000402W WO2009046553A1 WO 2009046553 A1 WO2009046553 A1 WO 2009046553A1 CH 2008000402 W CH2008000402 W CH 2008000402W WO 2009046553 A1 WO2009046553 A1 WO 2009046553A1
Authority
WO
WIPO (PCT)
Prior art keywords
spout
plastic closure
closure according
top surface
closure
Prior art date
Application number
PCT/CH2008/000402
Other languages
German (de)
English (en)
Inventor
Werner Dubach
Original Assignee
Deltona Innovations Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH01490/08A external-priority patent/CH697957A2/de
Application filed by Deltona Innovations Ag filed Critical Deltona Innovations Ag
Priority to US12/734,122 priority Critical patent/US8424728B2/en
Priority to EP08800448A priority patent/EP2203357B1/fr
Priority to PL08800448T priority patent/PL2203357T3/pl
Priority to DE502008003310T priority patent/DE502008003310D1/de
Priority to RU2010118616/12A priority patent/RU2471694C2/ru
Priority to CN2008801201354A priority patent/CN101932513B/zh
Priority to BRPI0817557-8A priority patent/BRPI0817557B1/pt
Priority to AT08800448T priority patent/ATE506274T1/de
Publication of WO2009046553A1 publication Critical patent/WO2009046553A1/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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages

Definitions

  • the present invention relates to a two- or multi-part plastic closure for attachment to the container neck of a flexible bottle for dispensing thixotropic liquids, according to the preamble of claim 1.
  • Thixotropic liquids are liquids with a non-Newtonian flow behavior.
  • a typical example of such a liquid is ketchup.
  • various liquid soaps have thixotropic behavior, as do many dispersions.
  • Today, such liquids are offered in flexible plastic containers which are provided with closures with a so-called closure membrane. Closures with a so-called closure membrane have become known in many embodiments. For example, see EP-A-545,678, EP-A-442,379, US-A-2,175,052 or WO-A-2006/119315.
  • the great advantage of closures with a sealing membrane is that the already opened container can be kept upside down without the liquid flowing out.
  • the sealing membrane By pressure on the flexible bottle, the sealing membrane is deformed and the most slit-shaped opening spreads, and the liquid can be pressed out of the bottle.
  • the problem here is that the tighter the membrane is held, the better the closing force, and the faster the closure closes when the pressure on the container wears off. This creates over time in the container ever greater negative pressure, so that on the one hand the bottle deforms more and more during use and also the pressure required to deliver the liquid must be increased. If the closure membrane is less taut, then at least some of the displaced air can at least partially be returned to the container, but at the same time the closure tends to drip off. In addition, the tighter the sealing membrane is stretched, the more the closure tends to open explosively under pressure, so that a jet emerges at high speed and prone accordingly to spraying.
  • Thixotropy refers to the property of a non-Newtonian fluid in which, with constant shear, the viscosity degrades over a period of time. After exposure to the shear stress, the initial viscosity is rebuilt. In other words, the longer a thixotropic liquid is moved, the thinner it gets, and in most cases, the faster the movement is carried out, the faster the viscosity will decrease.
  • US-A-4460101 shows such a labyrinth closure with a support surface mounted under the spout.
  • this closure has the problems described above, in which case the flow path is even more complex, with the result that this closure is even more prone to clogging.
  • the latter patent mentions the use of thixotropic liquids. Thanks to the many changes in direction and constrictions, the viscosity of the liquid is forcibly improved by the internal friction, however, as already mentioned, the flow path is so complex that the function is only ensured to some extent if the container is vigorously shaken beforehand and the thixotropy is thus reduced Viscosity already changed so that practically the additional changes in direction and narrowing would hardly be required.
  • FIG. 1 shows a diametrical vertical section through the lower part of a plastic closure according to a first embodiment of the subject invention.
  • FIG. 2 shows the same lower part according to FIG. 1 with a view of the underside
  • Fig. 3 shows a variant with a plurality of spouts
  • Fig. 4 shows a closure according to Fig. 1 with a snap hinge lid.
  • the plastic closure according to the invention is designated overall by 1.
  • This plastic closure consists of a lower part 2 and an upper part or cover 6.
  • the plastic closure 1 can be designed in two parts or in several parts.
  • a two-part closure is understood to mean a closure in which the lower part and lid are made in one piece and the support surface to be described is a separate pane.
  • lower part and lid are made separately and in addition the mentioned disc exists, it is spoken of a multi-part plastic closure.
  • a multi-part plastic closure is shown, while in Figure 4, a two-piece plastic closure is shown, in which the lower part 2 and the cover 3 are made in one piece.
  • the lower part 2 contains the essential parts of the invention and this lower part can have virtually any shape and design, as is known in plastic closures according to the prior art. Accordingly, the lower part 2 is shown only symbolically and simplified. So lack of the parts shown here, the necessary per se, but in relation to the embodiment of the invention immaterial features.
  • the lower part 2 must have means for fixing the plastic closure 1 on a container. This can, as in the figures, be a thread, but other means, such as retaining beads or retaining cams come into question. Likewise, such plastic closures can be configured with warranty bands.
  • FIG. 1 The particularly simple embodiment of the subject invention is shown in Figures 1 and 2 shown.
  • the lower part 2 has a circumferential casing wall 3 and the upper end is completely closed by a top surface 4 to a spout opening 5.
  • the top surface 4 is provided in the embodiment shown here with a survey 7.
  • This, cylindrically shaped elevation 7, contains in the embodiment shown here a spout opening 5.
  • To the spout opening 5 extends on the surface of the elevation 7 an annular groove 9. This forms a spout 8 extending through the top surface 4 'of the elevation 7 therethrough extends and at the bottom has an extension 18.
  • annular retaining bead 10 On the underside of the top surface 4, an annular retaining bead 10 is formed. This retaining bead 10 is larger in diameter than the diameter of the elevation 7. Between the annular retaining bead and the jacket wall 3 remains a gap in which a bottleneck comes to rest. This bottleneck can be sealed externally by the jacket wall 3, while the inside of the bottle neck can be sealed either by the annular retaining bead 10 or between the annular retaining bead 10 and the shell wall 3 can be arranged a separate sealing ring wall. This ring wall, not shown here would of course be concentric with the casing wall 3. Between this jacket wall or the annular retaining bead 10 and the top surface 4 may be present more sealing means.
  • a disc 11 is inserted, which forms a support surface 12.
  • This disk 11 or support surface 12 is held positively and / or non-positively in the annular retaining bead 10.
  • additional means may be present, which improve the positive retention. These may be, for example, annular retaining beads or a plurality of cams directed towards the center, via which the disc 11 is held in the correct end position. The positioning of the disc 11 is effected by the annular retaining bead 10 in axial alignment. A radial alignment is not required.
  • a plurality of through holes 13 are arranged. If the disk 11 is a circular disk, the passage openings 13 are usefully arranged on a circle. The passage openings 13 are radially offset so far that they come to lie outside the range of the inside diameter of the outlet opening 5. Also, the through holes 13 are like a dull up the survey 7 extended. However, these extensions 14 terminate below the extension 18 of the shell 8 of the spout opening 5 in the elevation 7. By these spout-like extensions 14 forms a kind of centric elevation on the disc 11. At the same time remains a central recess 15. This is caused by the fact that spout-like extensions 14 touch each other or merge into one another and so practically form a star-shaped annular wall 16.
  • the of the star-shaped annular wall 16th formed central recess 14 is located directly below the spout opening 5. Between the top of the disc 11, which forms the support surface 12, and the underside of the top surface .4 'of the elevation 7 remains a space 17.
  • This space 17 can also be formed when in the top surface 4 no elevation 7 is present by the annular retaining bead in the axial direction extends further down and the support surface 12 and the disc 11 is held further down. In any case, the presence of the space 17 is ensured.
  • the disc 11 is referred to as a support surface 12, as this, when the bottle is placed on the plastic closure is upside down, the static hydraulic pressure of the non-Newton's see fluid rests. Even if the spout opening 5 is not closed, the thixotropic liquid is unable to hydrate out. However, if pressure is exerted on the flexible bottle, the thixotropic liquid flows through the passage openings 13 into the tree 17 in the axial direction. In this case, a first change in direction of the flow from axial to radial occurs. The space 17 is filled and the thixotropic liquid undergoes a radial movement toward the center, whereupon the thixotropic liquid exits through the spout opening 5 by a further change of direction. During this flow, shearing forces occur in the liquid, which lead to the thixotropic liquid becoming more fluid and thus having an improved flow behavior.
  • this constriction could be accomplished by an annular aperture.
  • the constriction is formed by the approximate extensions 14 and 18 of the spouts 13 in the disc 11 and the spout 8 of the spout.
  • the sleeve edges may only approach, but the free radial passage must be ensured.
  • this first embodiment of the subject invention allows an absolutely drip-free flow, the jet is terminated immediately after completion of the pressure on the bottle, and practically in the spout opening-near area is sucked back into the spout opening 5. This keeps the mouth of the spout opening absolutely clean. Due to the Venturi principle, the space 17 is also completely emptied and thus residues in the space 17 can not dry and thus clog the closure. This effect can only be achieved with a sufficient flow velocity and this can only be ensured if a labyrinth seal is avoided. Thus The object of the invention is fully achieved by a plastic closure without silicone rubber membrane is formed, but has all the advantages of such a closure, but realized much cheaper and safer.
  • the disk 11 as a support surface 12 is a very simple plastic part, which is inexpensive to manufacture and thanks to its strength is also much easier to assemble, as a membrane made of silicone rubber. It should be noted, however, that the cross-sectional area of the spout opening must be smaller than the sum of the cross-sectional areas of the through holes 13.
  • the disk 11 here only has a central passage opening, which is designated by 13 '. Also, this through hole 13 'may have a tüllenförmige extension 14. Also in this variant, the top surface 4 has a survey with a corresponding top surface 4 '. In this cover surface 4 ', in contrast to the previously described embodiment, a plurality of spouts 8' are arranged. At least two approximately diametrically opposite spouts 8 'should be present. But this can be any number of arranged on a circle grommets. The central recess 21 in the top surface 4 'of the survey essentially serves to form the spout. This room can also be designed filled with material.
  • a two-part closure mentioned above is shown.
  • the lower part 2 is connected to the lid 6 via a film hinge 20 and straps 19 with each other, so that the entire closure a Represents snap hinge closure.
  • a sealing pin 6 ' is formed, which is able to engage in the spout 8 and thus causes a largely hermetic seal.

Landscapes

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

Abstract

L'invention concerne un système de bouchage en matière plastique (1) qui comprend une partie inférieure (2) et un couvercle (6), la partie inférieure présentant un renflement de retenue (10) annulaire à l'intérieur duquel un disque (11) pourvu d'une surface de soutien (12) est maintenu par complémentarité de forme et/ou assemblage à force. Ce disque comporte une ou plusieurs ouvertures de passage (13) qui débouchent sur un espace (17). Un liquide thixotrope se trouvant dans un contenant souple peut pénétrer dans l'espace (17) par les ouvertures de passage (13), puis le liquide exécute un changement de direction du sens axial au sens radial et sort par l'ouverture de sortie (5) après un second changement de direction du sens radial au sens axial, l'écoulement étant accéléré par l'intermédiaire d'un rétrécissement (21) entre les deux changements de direction.
PCT/CH2008/000402 2007-10-10 2008-09-26 Système de bouchage en matière plastique WO2009046553A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US12/734,122 US8424728B2 (en) 2007-10-10 2008-09-26 Plastic closure for thixotropic dispensing bottles
EP08800448A EP2203357B1 (fr) 2007-10-10 2008-09-26 Système de bouchage en matière plastique
PL08800448T PL2203357T3 (pl) 2007-10-10 2008-09-26 Zamknięcie z tworzywa sztucznego
DE502008003310T DE502008003310D1 (de) 2007-10-10 2008-09-26 Kunststoffverschluss
RU2010118616/12A RU2471694C2 (ru) 2007-10-10 2008-09-26 Укупорочный колпачок из полимерного материала
CN2008801201354A CN101932513B (zh) 2007-10-10 2008-09-26 合成材料封闭件
BRPI0817557-8A BRPI0817557B1 (pt) 2007-10-10 2008-09-26 Fecho de plástico
AT08800448T ATE506274T1 (de) 2007-10-10 2008-09-26 Kunststoffverschluss

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH15682007 2007-10-10
CH1568/07 2007-10-10
CH01490/08A CH697957A2 (de) 2007-10-10 2008-09-22 Kunststoffverschluss.
CH1490/08 2008-09-22

Publications (1)

Publication Number Publication Date
WO2009046553A1 true WO2009046553A1 (fr) 2009-04-16

Family

ID=40042872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2008/000402 WO2009046553A1 (fr) 2007-10-10 2008-09-26 Système de bouchage en matière plastique

Country Status (1)

Country Link
WO (1) WO2009046553A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2266888A2 (fr) * 2008-04-17 2010-12-29 Sang Yun Seok Dispositif de femeture d'un récipient par viscosité
FR3008394A1 (fr) * 2013-07-12 2015-01-16 Pumpart System Dispositif de ralentissement du flux et du reflux d'un produit
WO2021055026A1 (fr) 2019-09-20 2021-03-25 H.J. Heinz Company Brands Llc Récipient, fermeture et procédés de fabrication
CN112810993A (zh) * 2021-01-18 2021-05-18 贵州帮呗科技有限公司 一种防伪瓶
US11401083B2 (en) 2018-12-21 2022-08-02 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
US11623798B2 (en) 2018-12-21 2023-04-11 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
USD1000276S1 (en) 2018-12-21 2023-10-03 H.J. Heinz Company Brands Llc Closure for a container
US11891218B2 (en) 2019-09-20 2024-02-06 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20112974U1 (de) * 2001-08-13 2002-09-19 Rpc Bramlage Gmbh Behälterverschluss
WO2006119315A2 (fr) * 2005-05-04 2006-11-09 Vernay Laboratories, Inc. Clapet de distribution

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20112974U1 (de) * 2001-08-13 2002-09-19 Rpc Bramlage Gmbh Behälterverschluss
WO2006119315A2 (fr) * 2005-05-04 2006-11-09 Vernay Laboratories, Inc. Clapet de distribution

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2266888A2 (fr) * 2008-04-17 2010-12-29 Sang Yun Seok Dispositif de femeture d'un récipient par viscosité
EP2266888A4 (fr) * 2008-04-17 2011-04-06 Sang Yun Seok Dispositif de femeture d'un récipient par viscosité
FR3008394A1 (fr) * 2013-07-12 2015-01-16 Pumpart System Dispositif de ralentissement du flux et du reflux d'un produit
USD1000276S1 (en) 2018-12-21 2023-10-03 H.J. Heinz Company Brands Llc Closure for a container
US11401083B2 (en) 2018-12-21 2022-08-02 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
US11465815B2 (en) 2018-12-21 2022-10-11 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
US11472610B2 (en) 2018-12-21 2022-10-18 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
EP4074620A1 (fr) * 2018-12-21 2022-10-19 H.J. Heinz Company Brands LLC Couvercle de fermeture et procédé de fabrication
US11623798B2 (en) 2018-12-21 2023-04-11 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
USD1000954S1 (en) 2018-12-21 2023-10-10 H.J. Heinz Company Brands Llc Closure for a container
EP3917853A4 (fr) * 2019-09-20 2022-03-30 H.J. Heinz Company Brands LLC Récipient, fermeture et procédés de fabrication
WO2021055026A1 (fr) 2019-09-20 2021-03-25 H.J. Heinz Company Brands Llc Récipient, fermeture et procédés de fabrication
EP4269272A3 (fr) * 2019-09-20 2023-12-06 H.J. Heinz Company Brands LLC Récipient, fermeture et procédés de fabrication
US11891218B2 (en) 2019-09-20 2024-02-06 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
CN112810993A (zh) * 2021-01-18 2021-05-18 贵州帮呗科技有限公司 一种防伪瓶
CN112810993B (zh) * 2021-01-18 2022-05-17 贵州帮呗科技有限公司 一种防伪瓶

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