EP0738663B1 - Capuchon de fermeture - Google Patents

Capuchon de fermeture Download PDF

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Publication number
EP0738663B1
EP0738663B1 EP19950106019 EP95106019A EP0738663B1 EP 0738663 B1 EP0738663 B1 EP 0738663B1 EP 19950106019 EP19950106019 EP 19950106019 EP 95106019 A EP95106019 A EP 95106019A EP 0738663 B1 EP0738663 B1 EP 0738663B1
Authority
EP
European Patent Office
Prior art keywords
flank
closure cap
web
cap
container
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.)
Expired - Lifetime
Application number
EP19950106019
Other languages
German (de)
English (en)
Other versions
EP0738663A1 (fr
Inventor
Karl-Heinz Rosenthal
Filip Norbert
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.)
AptarGroup SAS
Original Assignee
AptarGroup SAS
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 AptarGroup SAS filed Critical AptarGroup SAS
Priority to EP19950106019 priority Critical patent/EP0738663B1/fr
Publication of EP0738663A1 publication Critical patent/EP0738663A1/fr
Application granted granted Critical
Publication of EP0738663B1 publication Critical patent/EP0738663B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap
    • 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

Definitions

  • the invention relates to a closure cap according to the preamble of claim 1.
  • a closure cap of this type is from FR-A-2 329 529 known.
  • FR-A-2 329 529 describes a sealing cap for one Container, the container neck provided with an opening has a threaded bead, the cap a Has thread groove, the width of the height of the cap is the same size.
  • Two one above the other at a distance Flank webs of adjacent thread grooves of the closure cap are elastic, so that by an elastic Deformation of the flank webs between the on the thread bead of the Contact surface of the container neck creates a frictional force which causes additional self-locking.
  • Such caps are used in particular for closing of containers in which perishable contents, such as food or cosmetic products.
  • By the screw cap should ensure that a repeated closing to seal the container opening possible after removing content from the container as often as required is.
  • the invention has for its object a closure cap to create the type mentioned above, even with repeated Closing a container opening a secure seal the container opening allows.
  • the thread groove is limited Flank webs are different in cross-section. Of the one flank is relatively rigid while the other Flank web is flexible. Furthermore, the distance is the opposite flank webs between adjacent thread grooves dimensioned so that the relatively flexible Flank web at deflection on the relatively rigid flank web can support.
  • This cap has an excessive load one flank through the support on the other Flank web avoided.
  • the cap is therefore special suitable to absorb large loads caused by accordingly large screwing moments applied to the flank webs become. This is the case, for example, when the closure cap to close a pressurized Container is used because here for a secure seal the container opening also the internal pressure of the container by a correspondingly increased pretension of the closure cap must be compensated.
  • flank webs are of different lengths, as a result of this Have areas defined in which the clamping effect of the Thread groove not as a result of the spreading of the flank webs or is only available to a limited extent. If so different long formation of the flank webs adjacent to a cap opening is provided such that a flank the thread groove ends before the other flank web screwing the cap onto the container opening each according to the difference in length of the flanks at least in the area of first thread easier.
  • a separate seal enables the selection a plastic material for the cap, which in particularly meets the elasticity requirements, without having to simultaneously meet the requirements for a sealing material, such as a good surface formability.
  • Fig. 1 shows a closure cap 31 on a container neck 11 is partially screwed on.
  • the cap 31 has a cylindrical cap jacket that is opposite a cap opening merges into a head wall.
  • a sealing washer 16 is used in a recess 15 on the underside of the head wall .
  • the sealing washer 16 can also be a spherical cap-shaped projection or a Plug on the underside of the head wall as a seal.
  • the cap jacket is provided on the inside with a thread groove 17, the one for receiving an outside on the container neck arranged threaded bead 18 is used.
  • the thread groove 17 is in width by an upper and delimits a lower flank web 19, 32 which is a usual replace one-piece thread cord. Between the flanks 19 and 32 of the adjacent threads are at a distance.
  • flank webs 19, 32 can in their to the cap opening the beginning of the thread is of unequal length be. So the thread start of the upper flank can 19 almost one thread further towards the cap opening as the thread start of the lower one Flank web 32 extend.
  • Fig. 1 From an overall view of Fig. 1 it follows that the cap 31 in the screwing-on phase shown in FIG. 1 over one revolution on a threaded bead 18 of the container neck 11 is screwed on. This results from one smaller than a width of the threaded bead 18 Width of the thread groove 17, which is part of the thread bead 18 picks up a spread between the top and bottom Flank webs 19, 32, the flank web 19 being deflected becomes.
  • Fig. 2 shows the cap 31 in the screwed End position so that the threaded bead 18 is completely in the Thread groove 17 has penetrated. 2 also shows that the spread of the flank 19, 32 accordingly is far advanced, so that the threaded bead 18th in the thread groove 17 of the closure cap 31, with the exception, for example the first half of the lower end of the threaded bead 18, is recorded.
  • the cap 31 there is a sealing washer 16 sealingly on an end face Opening edge 28 of the container neck 11.
  • the cap 31 with the container neck 11 an axial sealing force in the direction of the central axis of the container neck 11 exerted on the sealing disk 16.
  • This sealing force is kept in balance by an opposite acting axial component by the elastic Restoring forces of the flank web 19 in the contact area the threaded bead 18 caused friction. Prevent it the elastic restoring forces acting on the threaded bead 18 the flank web 19 an automatic loosening of the cap 31 on the container neck 11.
  • FIGS. 1 to 3 thus show a closure cap 31, the upper flank web 19 and lower flank web 32 different are trained.
  • the flank 32 has opposite Flank web 19 is an enlarged cross section and is thus more rigid.
  • FIGS. 1 and 2 for different screwing phases is shown that only the upper, more flexible, thinner flank cross-section 19 is deflected by the threaded bead 18 and the lower, more rigid, cross-sectionally thicker flank 32 at one Spreading of the flank webs 19, 32 by the threaded bead 18 in remains essentially undeformed.
  • a distance d between that upper flank web 19 and the lower flank web 32 is included dimensioned so that the more flexible flank 19 on more rigid flank web 32 can support.
  • This is the thread groove 17 in the illustrated in FIGS. 1 to 3 Embodiment of the cap 31 capable, particularly absorb high screwing forces and therefore accordingly to generate high sealing forces.

Landscapes

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

Claims (4)

  1. Capuchon de fermeture (1) pour un réservoir, en particulier un flacon en verre, donc le col de réservoir (11) pourvu d'une ouverture comprend un filet de filetage (18), le capuchon de fermeture (31) ayant une rainure de filetage (17) dont la largeur est constante sur la hauteur du capuchon de fermeture (31), une nervure de flanc (19) parmi deux nervures de flanc (19, 32) superposées avec un écart (a ; d) de rainures de filetage voisines du capuchon de fermeture (31) étant réalisée de manière élastique de telle sorte que par une déformation élastique de cette nervure de flanc (19) entre les surfaces de contact reposant contre le filet de filetage du col de réservoir (11), il est créé une force de frottement qui engendre un auto-blocage additionnel, caractérisé en ce que l'autre nervure de flanc (32) est réalisée de manière relativement rigide à la flexion par rapport à la nervure de flanc (19), et l'écart (d) entre les nervures de flanc (19, 32) de rainures de filetage voisines (17) est telle que la nervure de flanc (19) relativement souple à la flexion lors d'une déformation repose contre la nervure de flanc (32) relativement rigide à la flexion.
  2. Capuchon selon la revendication 1, caractérisé en ce que les nervures de flanc (19, 32) sont réalisées avec des longueurs différentes.
  3. Capuchon de fermeture selon la revendication 2, caractérisé en ce que les nervures de flanc (19, 32) tournées vers une ouverture (13) du capuchon de fermeture présentent des longueurs différentes au niveau d'un début de filetage (23, 24).
  4. Capuchon de fermeture selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'au niveau d'une paroi de tête (14) opposée à l'ouverture (13) du capuchon de fermeture est disposée du côté intérieur une garniture d'étanchéité réalisée de préférence sous la forme d'un disque d'étanchéité (16) pour reposer de manière à étanchéifier sur un bord d'ouverture (28) du col de réservoir (11).
EP19950106019 1995-04-21 1995-04-21 Capuchon de fermeture Expired - Lifetime EP0738663B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19950106019 EP0738663B1 (fr) 1995-04-21 1995-04-21 Capuchon de fermeture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19950106019 EP0738663B1 (fr) 1995-04-21 1995-04-21 Capuchon de fermeture

Publications (2)

Publication Number Publication Date
EP0738663A1 EP0738663A1 (fr) 1996-10-23
EP0738663B1 true EP0738663B1 (fr) 1999-02-24

Family

ID=8219197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950106019 Expired - Lifetime EP0738663B1 (fr) 1995-04-21 1995-04-21 Capuchon de fermeture

Country Status (1)

Country Link
EP (1) EP0738663B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2339771A (en) * 1998-07-18 2000-02-09 Rexam Containers Ltd Closure and container neck combination with deformable screw thread
FR2946028B1 (fr) * 2009-05-26 2011-07-08 Oreal Element d'embouchure pour un recipient, destine a etre visse avec un element d'embouchure complementaire du recipient.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1399727A (fr) * 1964-04-09 1965-05-21 J P Grussen Ets Nouvelle capsule à double filetage
FR2329529A1 (fr) * 1975-10-29 1977-05-27 Giraud Gallaire Ets Capsules de bouchage pour recipients a goulot filete
GB1544854A (en) * 1976-11-25 1979-04-25 Ump Plastics Ltd Closure cap
DE4340229C2 (de) * 1993-11-25 1995-10-19 Innocos Gmbh Verschlußkappe

Also Published As

Publication number Publication date
EP0738663A1 (fr) 1996-10-23

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