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WO2006099771A1 - Bouchon en plastique - Google Patents

Bouchon en plastique Download PDF

Info

Publication number
WO2006099771A1
WO2006099771A1 PCT/CH2006/000168 CH2006000168W WO2006099771A1 WO 2006099771 A1 WO2006099771 A1 WO 2006099771A1 CH 2006000168 W CH2006000168 W CH 2006000168W WO 2006099771 A1 WO2006099771 A1 WO 2006099771A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure plate
top surface
plastic closure
wall
closure according
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.)
Ceased
Application number
PCT/CH2006/000168
Other languages
German (de)
English (en)
Inventor
Werner Fritz Dubach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Terxo AG
Original Assignee
Terxo 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
Application filed by Terxo AG filed Critical Terxo AG
Publication of WO2006099771A1 publication Critical patent/WO2006099771A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/122—Threaded caps
    • B65D47/123—Threaded caps with internal parts
    • 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
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage

Definitions

  • the present invention relates to a plastic closure consisting of a lower part and a cooperating cap, wherein the lower part is used for attachment to a container and a shell wall and this final, arbitrarily shaped top surface having outlet opening.
  • plastic closures corresponds to the general design of the majority of plastic closures available on the market today.
  • a plastic closure can of course consist of only one cap, which is applied directly to a bottle or other container.
  • a plastic closure of a lower part which is placed on a container and a cap designed.
  • lower part and cap can be one or two parts.
  • An essential function of the lower part is to serve the container, for example a plastic bottle, with a content and purpose To provide spout. So far, such plastic closures have been used practically only on containers in which there is no relevant internal pressure.
  • FIG. 4 shows purely by way of example a plastic closure of the type mentioned in the introduction.
  • the plastic closure which is designated overall by 1, has a lower part 2 and a cap 3 fitting thereon.
  • the lower part has a fastening region 4, by means of which the plastic closure can be fastened on a container.
  • a jacket wall 5 adjoins the attachment area 4, which may possibly also be part of the attachment area 4, and this jacket wall 5 is closed by an arbitrarily designed cover surface 6 up to an exit opening 7.
  • the outlet opening 7 is finally sealed by a sealing member 8, wherein the sealing member 8 is part of the cap 3.
  • the cap 3 can, as here represented, be a screw cap or a pivotally connected to the lower part 2 integrally produced cap.
  • the cover surface 9 of the cap 3 is practically pressed outwards and the sealing area between the sealing member 8 and the outlet opening 7 is displaced relative to one another, whereby sealing elements mounted in this area, as sealing lips or sealing grooves are no longer in sealing engagement with each other, bringing the internal pressure escapes from the container, since it is known that the plastic threads are not designed to be sealed.
  • the applied internal pressure P acts ebenfals on the casing wall 5 and the top surface 6 of the lower part, and these elements of the plastic closure can deform under the prevailing internal pressure and cause the tightness is no longer guaranteed.
  • this problem can be solved in an obvious way by increasing the respective wall thicknesses of the various elements. However, this is undesirable for economic and environmental reasons.
  • the cap 3 is designed not as a screw cap but as a pivotally connected to the base cap, the applied internal pressure causes the cap is inevitably pressed, unless additional security measures are provided.
  • the pressure plate and the top surface of the lower part are always arranged at two different levels.
  • the pressure plate can be arranged either below the top surface or alternatively, the pressure plate can be held above the top surface.
  • Figure 1 shows a plastic closure according to the invention with a pressure plate which is arranged below the top surface and wherein the cap as
  • Figure 2 shows a simplified representation of a plastic closure according to the variant of Figure 1, wherein the cap in one piece with the
  • FIG. 3 shows an alternative embodiment in which the pressure plate extends above the top surface of the lower part and in which the cap is again designed as a screw cap.
  • FIG. 4 shows, as already mentioned at the beginning, a plastic closure according to the prior art.
  • the entire plastic closure is designated 1.
  • This consists of the two main components, namely the lower part 2 and the matching cap 3.
  • the lower part 2 has a mounting portion 4, on the one hand has a circumferential skirt 20 in which an internal thread 21 is formed.
  • the circumferential skirt 20 is bounded above by a shoulder 22.
  • a sealing lip 23 is formed on the inner wall downwardly formed, by means of which the container with the plastic closure or its lower part 2 is sealingly connected.
  • a jacket wall 5 which may have virtually any shape.
  • the shell wall 5 can be designed in alignment with the skirt 20, as is the case in many embodiments ⁇ TOU plastic closures.
  • the shell wall 5 is finally limited by a top surface 6.
  • the shape of this top surface 6 can be virtually arbitrary.
  • the top surface 6 may also be dome-shaped curved.
  • the top surface 6 is pierced by an outlet opening 7, the design of which can also be done in any conventional form today.
  • the outlet orifice may be round, oval, star-shaped or polygonal.
  • the cap 3 mounted on the lower part 2 can of course also be arbitrarily shaped in terms of design. In principle, however, the cap 3 can be realized as a separate element of the closure 1, so that then the plastic closure consists of two parts or, as will be described, the cap 3 can also be formed integrally with the lower part 2, so that then the entire plastic closure is in one piece.
  • the cap 3 is designed as a screw cap. It has a jacket wall 30 with an internal thread 31 and a top surface 33. On the inside 32 of the top surface 9, a sealing member 8 is formed. The Sealing member 8 is formally adapted exactly to the exit port 7.
  • both the outlet orifice 7 and the sealing member 8 must be rotationally symmetrical, in particular cylindrical or circular.
  • the cap 3 must be formed as a pure Aufpresskappe or pivotally connected to the base cap.
  • the design of the outlet orifice 7 can be arbitrary and the sealing member can be adapted accordingly.
  • the jacket wall 5 no longer be rotationally symmetrical, so that in this regard virtually any design freedom is given.
  • a pressure plate 10 is mounted in the lower part 2.
  • This pressure plate 10 can be in various ways be held in the lower part 2.
  • the pressure plate 10 is connected via ribs 25 with the jacket wall 5.
  • the ribs 25 may be designed so that they are only connected to the casing wall 5 or extend so far up that they also adjacent to the underside of the top surface 6. In this case, the ribs 25 are designed almost equal radial walls.
  • the pressure plate 10 may also be practically part of a pot-like element, which is formed directly below the outlet opening 7. In such a case, then run the ribs 25 between the wall of this pot-like element and the jacket wall 5 and the top surface 6. Insofar in this case the connection of the ribs 25 with the jacket wall 5 is not directly but indirectly.
  • At least one outflow opening 26 is present in the area between the top surface 6 and the lower pressure plate 10 located underneath.
  • the outflow opening 26 is practically designed in the present case as a circumferential annular gap.
  • the sealing member 8 comes to lie exactly in the region of these openings 26.
  • the internal pressure of the container now lies in the radial direction directed towards the center from outside onto the sealing member 8.
  • the sealing member 8, which is designed here as an annular wall, comprises the pressure plate either completely or, as shown in this example, partially.
  • the pressure plate 10 is provided with a circumferential shoulder 11 which defines a centric attachment 12 on the pressure plate 10. This attachment comes to lie within the annular wall, which forms the sealing member 8.
  • the article therefore forms a positive connection with the sealing member 8.
  • the attachment 12, which is part of the pressure plate 10 thus engages positively in the sealing member 8 and supports this against pressure forces which press radially from the inside to the annular wall.
  • the plastic closure according to the invention also has two separate sealing zones, which are here marked Di or D 2 .
  • the first sealing zone Di is formed by the common contact surface between the sealing member 8 on the one hand and the outlet mouth 7 on the other.
  • the outlet opening is the axially directed opening in the Cover surface 6 of the lower part 2.
  • additional sealing means such as annular ribs, annular lips or beads may be present.
  • the second sealing zone D 2 is formed by the common contact surface of the inside of the annular wall which forms the sealing member 8, while the opposite surface is formed by the shoulder 11 on the attachment 12. This common contact surface can in turn be provided with sealing elements.
  • the essence of the invention consists on the one hand in the fact that no pressure forces of the internal pressure inside the container in the opening direction, that is, in this case acts in the axial direction of the plastic closure and thus the plastic closure in the sealing area is not deformed, or the pressure forces do not act in the direction of opening ,
  • the existing existing practically in the radial direction pressure forces P are intercepted by the positive locking in a perfect manner by the positive locking.
  • a bead 13 directed downwards, the top sealing zone Di is formed, and the bead 13 which enlarges the top sealing zone Di is formed.
  • This bead 13 acts on the one hand reinforcing with respect to the force absorption of the top surface 6 and on the other hand, the contact surface is increased in the region of the sealing zone Di.
  • the internal pressure P also on the top surface 6
  • the cap 3 is connected to the skirt 20 via a hinge band 27 with the lower region of the lower part 2 in the present case.
  • this connection 27 can be configured as a genuine hinge or only as a slag protection.
  • the embodiment of the inventive plastic closure as shown in Figure 3 has the same structure and the same effect, however, this solution is based on a reversal of the principle.
  • the pressure plate 10 is arranged in this case above the top surface 6 of the lower part 2. Accordingly, the medium from the container is guided centrally through the top surface up to the pressure plate 10 and is deflected accordingly here and then in turn flows in the radial direction through corresponding outflow openings 26, which in turn lie between the top surface and the pressure plate. While in the solution described above, the flow direction extends in the regions of the outflow openings 26 radially from outside to inside, in this solution, the outflow direction, although again radially, but extending from the inside to the outside.
  • the sealing member 8 is again designed as an annular wall, which is arranged on the underside 32 of the top surface 9 of the cap 3. In this embodiment comes in the closed state the shutter the printing plate completely within the sealing member 8 to lie.
  • the pressure plate 10 may, as mentioned above with respect to the embodiments according to Figures 1 and 2, be held by ribs 25 or the pressure plate 10 forms part of a substantially everted pot and the outflow openings 26 are formed by openings in this pot wall. While the holding ribs 25 in the embodiment according to FIGS. 1 and 2 form a connection between the pressure plate 10 and the casing wall 5, the holder of the pressure plate 10 is formed by one or more walls 28 crossing the outlet orifice 7.
  • the top surface 6 is bounded by an annular wall 29 which forms a pouring edge. This spout deflects the flow in turn from the essential radial direction in the axial direction.
  • the sealing member 8 is secured by positive locking means against the applied internal pressure.
  • a concentrically around the outlet opening 7 extending support wall 14 is present on the top surface 6.
  • the sealing member 8 is thus in the closed state again in a form-fitting manner between a support wall 15, which supports the pressure plate 10 or which is designed as a boundary of the exit orifice 7 and the already mentioned circumferential concentrically extending support wall 14 held.
  • the applied internal pressure is thus act through the discharge openings 26 on the sealing member 8 and press this sealing member 8 radially outward on the support wall 14.
  • two sealing zones Di and D 2 are realized.
  • the upper sealing zone D 1 is formed here by the contact surface of the periphery of the pressure plate 10 with the inside of the annular wall of the sealing member 8, while the second sealing zone is formed by the support wall 14 and the outer surface of the annular wall which forms the sealing member 8 ,
  • the cap 3 can be configured as a screw cap, as shown here, or as a pivotally integrally connected thereto hinge cap.

Landscapes

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

Abstract

Bouchon en plastique (1) qui possède une partie inférieure (2) et un capuchon (3). La partie inférieure (2) possède une paroi latérale (5) et une surface de couverture (6) fermant la paroi latérale. Une plaque de pression (10) est placée sur la surface de couverture (6) ou sous cette dernière. Un élément d'étanchéité (8) situé sur le capuchon (3) traverse la surface de couverture (6) et s'appuie par liaison de forme sur la plaque de pression (10). Ledit élément d'étanchéité (8) obture ainsi des orifices de sortie (26). La configuration selon la présente invention permet de guider la pression interne régnant dans le récipient, qui agit sur l'élément d'étanchéité (8), vers la plaque de pression (10) retenue dans la partie inférieure (2).
PCT/CH2006/000168 2005-03-22 2006-03-20 Bouchon en plastique Ceased WO2006099771A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4952005 2005-03-22
CH495/05 2005-03-22

Publications (1)

Publication Number Publication Date
WO2006099771A1 true WO2006099771A1 (fr) 2006-09-28

Family

ID=36586159

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2006/000168 Ceased WO2006099771A1 (fr) 2005-03-22 2006-03-20 Bouchon en plastique

Country Status (1)

Country Link
WO (1) WO2006099771A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH718142A1 (de) * 2020-12-08 2022-06-15 Alpla Werke Alwin Lehner Gmbh & Co Kg Behälterverschluss aus Kunststoff.
WO2025103827A1 (fr) * 2023-11-14 2025-05-22 Bericap Holding Gmbh Fermeture de récipient avec une surface d'étanchéité et une surface de support orientée a l'opposé de la surface d'étanchéité

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH611225A5 (en) * 1977-02-10 1979-05-31 Createchnic Patent Ag Plastic closure for firm and deformable containers
US5111949A (en) * 1990-04-13 1992-05-12 Astra Plastique Stoppering device with rotating cap
JPH08324615A (ja) * 1995-06-05 1996-12-10 Kao Corp キャップ
EP1035030A1 (fr) * 1999-03-08 2000-09-13 Percopack S.r.l. Bouchon distributeur pour conteneur de substance fluide
WO2003086892A1 (fr) * 2002-04-05 2003-10-23 Technocaps Limited Fermeture de type tire-pousse pour contenants destines a des boissons gazeuses et analogue

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH611225A5 (en) * 1977-02-10 1979-05-31 Createchnic Patent Ag Plastic closure for firm and deformable containers
US5111949A (en) * 1990-04-13 1992-05-12 Astra Plastique Stoppering device with rotating cap
JPH08324615A (ja) * 1995-06-05 1996-12-10 Kao Corp キャップ
EP1035030A1 (fr) * 1999-03-08 2000-09-13 Percopack S.r.l. Bouchon distributeur pour conteneur de substance fluide
WO2003086892A1 (fr) * 2002-04-05 2003-10-23 Technocaps Limited Fermeture de type tire-pousse pour contenants destines a des boissons gazeuses et analogue

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04 30 April 1997 (1997-04-30) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH718142A1 (de) * 2020-12-08 2022-06-15 Alpla Werke Alwin Lehner Gmbh & Co Kg Behälterverschluss aus Kunststoff.
WO2022122708A1 (fr) * 2020-12-08 2022-06-16 Alpla Werke Alwin Lehner Gmbh & Co. Kg Fermeture de récipient
WO2025103827A1 (fr) * 2023-11-14 2025-05-22 Bericap Holding Gmbh Fermeture de récipient avec une surface d'étanchéité et une surface de support orientée a l'opposé de la surface d'étanchéité

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