EP0350415A1 - Verschlusssystem, bestehend aus einer Schraubkappe und einem Behälter-Gewindehals - Google Patents

Verschlusssystem, bestehend aus einer Schraubkappe und einem Behälter-Gewindehals Download PDF

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Publication number
EP0350415A1
EP0350415A1 EP89420239A EP89420239A EP0350415A1 EP 0350415 A1 EP0350415 A1 EP 0350415A1 EP 89420239 A EP89420239 A EP 89420239A EP 89420239 A EP89420239 A EP 89420239A EP 0350415 A1 EP0350415 A1 EP 0350415A1
Authority
EP
European Patent Office
Prior art keywords
neck
capsule
threads
threaded
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.)
Granted
Application number
EP89420239A
Other languages
English (en)
French (fr)
Other versions
EP0350415B1 (de
Inventor
Pierre Salmon
Jimmy Louvatiere
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.)
Cessione Novembal SA
Original Assignee
Societe Nouvelle de Bouchons Plastiques SNBP
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 Societe Nouvelle de Bouchons Plastiques SNBP filed Critical Societe Nouvelle de Bouchons Plastiques SNBP
Publication of EP0350415A1 publication Critical patent/EP0350415A1/de
Application granted granted Critical
Publication of EP0350415B1 publication Critical patent/EP0350415B1/de
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
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
    • 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
    • B65D41/16—Snap-on caps or cap-like covers
    • B65D41/17—Snap-on caps or cap-like covers push-on and twist-off

Definitions

  • the present invention relates to improvements made to shutter systems combining a screw cap and a threaded neck and it relates more particularly to such a cap whose thread is intended to be engaged elastically by an axial movement relative to said threaded neck.
  • Capsules are known that have at least one inner cord intended to snap elastically into at least one groove formed on the neck of a container. If the retention is effective in order to obtain a good seal, the extraction of the capsule is very difficult. On the contrary, if the insertion is relatively easy in order to allow an easy extraction, the sealing is poor.
  • the improvements which are the subject of the present invention aim to remedy these drawbacks and to allow the production of a capsule which can be snapped in relation to the neck of a container by allowing on the one hand to obtain a very good seal and on the other hand easy extraction.
  • the closure system according to the invention constituted by a screw cap intended to cooperate with the threaded neck of a container, is characterized in that the number of threads of the neck and that of the capsule are different and in that at least one of these elements is associated with a sealing means cooperating with the other element in order to ensure sealing whatever the degree of depression of the capsule on the neck.
  • the capsule comprises a central sleeve cooperating with the neck to ensure sealing.
  • the capsule has two threads and the neck four, said threads being respectively angularly offset by 180 ° and 90 °.
  • a capsule 1 intended to close the neck 2 of a container 3.
  • the capsule 1 comprises as usual a circular bottom 10 whose periphery cooperates with a cylindrical skirt 11 standing perpendicular to the bottom 10 and whose inner face 11 a is provided with two threads 12 offset 180 ° relative to each other to the other, as illustrated in fig. 2.
  • the underside 10a of the bottom 10 is associated with a tubular sleeve 13, the end edge 13a is slightly tapered towards the center.
  • a capsule can be produced by pressure molding of a suitable elastic plastic material, in particular polyethylene.
  • the neck 2 assumes the shape of a cylinder on the outer face of which are formed four threads 20, as more particularly well illustrated in the press of FIG. 3.
  • the origins of the threads 20 are offset by 90 ° and they each extend over an angle of 180 °.
  • the threads 12 and those 20 have their origins slightly below the vertical generator of each of their departures at 90 ° and 180 ° and their completion takes place slightly after said departures. This is how the two threads 12 start and end on either side of the generators referenced 0 and 180 °, while in FIG. 3, the threads 20 leave and arrive in pairs on either side of the generatrices illustrating four quarters of the circumference.
  • the abovementioned capping operation consists, according to the invention, in exerting an axial pressure on the capsule in the direction of the container in order to snap the threads of the capsule resiliently relative to certain threads of the neck or vice versa.
  • the origin of the two threads 12 of the capsule corresponds to that of two threads 20 of the neck (those located at the generators 0 and 180 °), so that the threads 12 bear on the entire length of two threads 20 of the neck.
  • the retention of the capsule is carried out according to two helical arcs of circle covering the entire periphery of the neck and of the capsule.
  • Sealing is achieved by the cooperation of the sleeve 13 with a narrowing 21 of the neck, regardless of the degree of depression of the capsule on this neck.
  • FIG. 9 another sealing means consisting of an elastic washer 4 with which the end edge 22 of the neck cooperates, and which ensures the sealing as well in the position of FIG. 4 as in that of FIG. 7.
  • an elastic washer 4 with which the end edge 22 of the neck cooperates, and which ensures the sealing as well in the position of FIG. 4 as in that of FIG. 7.
  • the washer 4 could also be carried by the neck without departing from the scope of the invention.
  • an actual pitch of 8 mm is chosen for the threads so that the unscrewing is very rapid
  • the apparent pitch that is to say the ratio real pitch / number of threads is four for the capsule and of two for the neck, it being understood that we remain in the case where the neck has four threads and the capsule two.
  • the number of threads 12 ′ of the capsule 1 is one greater than that of the threads 20 ′ of the neck 2, so that the axial engagement by force of the capsule 1 on the neck 2 s' performed by overlapping the respective threads, but only one of the threads 12 ′ of the capsule engaging under one of the threads 20 ′ of the neck 2, as illustrated in FIG. 12. Under these conditions, the capsule is retained by only one of its peripheral points relative to the neck (fig. 13), the anchoring point being referenced A in fig. 12 and 13.
  • the advantage of this variant compared to the embodiment described above consists in the fact that it is ensured to avoid any axial elastic displacement of the capsule, since in all cases one, two or three threads or thread caps of the capsule engage with a corresponding number of fillets or caps of fillet from the neck.
  • the sealing means between the capsule and the neck can be a simple flat seal 4 not having a high compression capacity, but the usual qualities of such a seal.
  • the screw cap be made of a material elastic allowing its deformation during the overlapping of the threads and its return to its initial position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP19890420239 1988-07-08 1989-07-04 Verschlusssystem, bestehend aus einer Schraubkappe und einem Behälter-Gewindehals Expired - Lifetime EP0350415B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809623 1988-07-08
FR8809623A FR2633903B1 (fr) 1988-07-08 1988-07-08 Systeme d'obturation combinant une capsule a vis et le goulot filete d'un recipient

Publications (2)

Publication Number Publication Date
EP0350415A1 true EP0350415A1 (de) 1990-01-10
EP0350415B1 EP0350415B1 (de) 1991-05-29

Family

ID=9368467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890420239 Expired - Lifetime EP0350415B1 (de) 1988-07-08 1989-07-04 Verschlusssystem, bestehend aus einer Schraubkappe und einem Behälter-Gewindehals

Country Status (4)

Country Link
EP (1) EP0350415B1 (de)
ES (1) ES2022759B3 (de)
FR (1) FR2633903B1 (de)
PT (1) PT91100B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1013852C2 (nl) * 1999-12-15 2001-06-18 Vinipak B V Afsluitsysteem alsmede een kap en tuit geschikt voor een dergelijk afsluitsysteem.
US6877625B2 (en) * 2001-10-01 2005-04-12 Matthew W. Alley Container closure member with vented and unvented closing positions
US7694835B1 (en) 2005-01-04 2010-04-13 Rexam Closures And Containers Inc. Drafted neck finish having angled thread face and closure package
EP2567140A4 (de) * 2010-05-03 2015-12-23 Drilltec Patents & Tech Rohrgewindeschutz
EP2990347A1 (de) * 2014-08-28 2016-03-02 Ducona Vastgoed B.V. Verfahren zur Herstellung einer Verpackung zur Aufnahme einer Flüssigkeit und solch eine Verpackung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4139810C2 (de) * 1991-12-03 1995-03-09 Eppendorf Geraetebau Netheler Deckelgefäß

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176948A1 (de) * 1972-03-20 1973-11-02 Sweetheart Plastics
FR2385600A1 (fr) * 1977-03-29 1978-10-27 Albert Obrist Systeme de bouchage pour bouteilles
EP0232856A2 (de) * 1986-02-06 1987-08-19 Kao Corporation Behälter
US4721220A (en) * 1986-08-29 1988-01-26 Owens-Illinois Closure Inc. Threaded container and closure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176948A1 (de) * 1972-03-20 1973-11-02 Sweetheart Plastics
FR2385600A1 (fr) * 1977-03-29 1978-10-27 Albert Obrist Systeme de bouchage pour bouteilles
EP0232856A2 (de) * 1986-02-06 1987-08-19 Kao Corporation Behälter
US4721220A (en) * 1986-08-29 1988-01-26 Owens-Illinois Closure Inc. Threaded container and closure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1013852C2 (nl) * 1999-12-15 2001-06-18 Vinipak B V Afsluitsysteem alsmede een kap en tuit geschikt voor een dergelijk afsluitsysteem.
US6877625B2 (en) * 2001-10-01 2005-04-12 Matthew W. Alley Container closure member with vented and unvented closing positions
US7694835B1 (en) 2005-01-04 2010-04-13 Rexam Closures And Containers Inc. Drafted neck finish having angled thread face and closure package
EP2567140A4 (de) * 2010-05-03 2015-12-23 Drilltec Patents & Tech Rohrgewindeschutz
EP2990347A1 (de) * 2014-08-28 2016-03-02 Ducona Vastgoed B.V. Verfahren zur Herstellung einer Verpackung zur Aufnahme einer Flüssigkeit und solch eine Verpackung

Also Published As

Publication number Publication date
FR2633903B1 (fr) 1990-10-12
FR2633903A1 (fr) 1990-01-12
PT91100B (pt) 1994-07-29
EP0350415B1 (de) 1991-05-29
ES2022759B3 (es) 1991-12-01
PT91100A (pt) 1990-02-08

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