WO2015061892A1 - Capsule à vis pour récipients - Google Patents

Capsule à vis pour récipients Download PDF

Info

Publication number
WO2015061892A1
WO2015061892A1 PCT/CA2014/050654 CA2014050654W WO2015061892A1 WO 2015061892 A1 WO2015061892 A1 WO 2015061892A1 CA 2014050654 W CA2014050654 W CA 2014050654W WO 2015061892 A1 WO2015061892 A1 WO 2015061892A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw cap
sealing ring
top panel
neck
thickness
Prior art date
Application number
PCT/CA2014/050654
Other languages
English (en)
Inventor
Tobias Naumann
Stephan Scherer
Original Assignee
Husky Injection Molding Systems Ltd.
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 Husky Injection Molding Systems Ltd. filed Critical Husky Injection Molding Systems Ltd.
Publication of WO2015061892A1 publication Critical patent/WO2015061892A1/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
    • 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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D41/04—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
    • B65D41/0421—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 and combined with integral sealing means contacting other surfaces of a container neck

Definitions

  • the present disclosure generally relates to a screw cap, and more particularly to a screw cap for containers with a threaded neck.
  • Screw caps are used to hold liquid in a container having a threaded neck.
  • liquid or beverage containing high proportion of carbon dioxide in a container may result in considerable strain on both the container (e.g. a bottle) and the screw cap.
  • screw caps with good sealing properties have been proposed, but which are not adequate in various respects.
  • a screw cap configured for capping a neck of a container.
  • the screw cap includes a top panel, a sidewall, an inner sealing ring and a outer sealing ring.
  • the top panel has a top surface and a bottom surface.
  • the sidewall projects from a periphery of the bottom surface of the top
  • the inner sealing ring downwardly extends from the bottom surface of the top panel, while the outer sealing ring downwardly extends from the bottom surface of the top panel and concentrically surrounds the inner sealing ring.
  • the top panel further has an undercut on the bottom surface surrounding the inner foot of the inner sealing ring to form a first thickness, the top surface and the bottom surface between the inner 5 sealing ring and the outer sealing ring form a second thickness, and the second thickness is greater than the first thickness.
  • Another screw cap further comprises a separable annular band connected to the open end of the annular sidewall by a plurality of bridges.
  • the bridges connecting the separable annular band and the annular sidewall are small webs of material that are broken with first attempted removal of the screw cap from the neck of the container.
  • the annular band has a series of annularly-spaced cams disposed on an inner face of the annular band.
  • cams are jointed together by a shallow taper ring.
  • Another screw cap further comprises a plurality of radial stops projected from the bottom surface of the top panel between the inner and outer sealing rings.
  • the inner sealing ring of the screw cap has a height ranged from 3.0 to 4.5 mm.
  • the outer sealing ring of the screw cap has a height ranged from 0.8 to 1.8 mm.
  • the first thickness of the cap i.e., the thickness of the top panel at the 1 0 undercut portion, is ranged from 0.75 to 1.15 mm.
  • the second thickness of the cap i.e., the normal thickness of the top panel
  • the second thickness of the cap is ranged from 1 to 1.5 mm. 5
  • each of the radial stops of the screw cap has a height ranged from 0.2 to 0.6 mm.
  • each of the radial stops of the screw cap has a width ranged from 1.3 to 1.8 mm.
  • FIG. 1 is an overall view of a screw cap in accordance with one of the example embodiments of the present disclosure
  • FIG. 2 is a sectional view of a screw cap in accordance with one of the example embodiments of the present disclosure
  • FIG. 3 is a sectional view of a screw cap engaged with a threaded neck 40 in accordance with one _ 5 of the example embodiments of the present disclosure
  • FIG. 4 illustrates an internal structure of a screw cap in accordance with one of the example embodiments of the present disclosure
  • FIG. 5 is an enlarged sectional view of a part of a screw cap in accordance with one of the example embodiments of the present disclosure
  • FIG. 6 is an enlarged sectional view of a stop of a screw cap in accordance with one of the example embodiments of the present disclosure.
  • FIG. 1 is an overall view of a screw cap in accordance with one of the example embodiments of 5 the present disclosure.
  • the screw cap 10 is configured to cap a neck 40 (see FIG. 3) at the inlet of a container such as, for example, a beverage bottle.
  • the screw cap 10 may be made from thermoplastics such as, for example, Polyethylene or Polypropylene.
  • the screw cap 10 includes a top panel 11 and a sidewall 12.
  • the sidewall 12 projects from a bottom of the top panel 11.
  • the sidewall 12 has an open end through which to receive the neck 40 of the container.
  • the screw cap L 0 10 has but is not limited to a tubular envelope shape that surrounds, in use, the neck 40 (see FIG. 3).
  • a separable annular band 14 is connected to the open end of the sidewall 12 by a plurality of bridges 143, illustrated in details in FIG. 2.
  • the separable annular band 14 is also known as "anti- tamper band” or “tamper evident band,” since it will be grasped by the neck 40 and breaks away from the sidewall 12 with initial removal of the screw cap 10 from the neck 40 to provide a visual L 5 indicator of tampering.
  • An embossed knurl pattern 13 is formed on the annular periphery of the sidewall 12, so as to enhance the friction of the annular periphery and make the screw cap easier to twist off or twist on.
  • FIG. 2 is a sectional view of a screw cap 20 in accordance with one of the example embodiments 1 0 of the present disclosure.
  • FIG. 3 is a sectional view of a screw cap engaged with a threaded neck 40 in accordance with one of the example embodiments of the present disclosure.
  • a section across the screw cap 20 reveals internal structures thereof. Amongst these are sealing structures that are configured to cooperate, in use, with complementary features on the neck 40 as shown in FIG. 3.
  • the neck 40 generally has an opening at one end and stretches at the 15 other end to hermetically connected with a container, such as a beverage bottle.
  • the top panel 11 has top surface and a bottom surface, the annular sidewall 12 projects from a periphery of the top panel 11 on one end.
  • a cap thread 121 is disposed on the inner annular surface of the sidewall 12.
  • the cap thread 121 cooperates, in use, with a complementary outer thread 41 defined on an outer surface of the annular neck 40.
  • the cap thread 121 includes gaps along its helical extent that define vents "V" for equalizing pressure of the contents of the container with start of removal of the screw cap 20 from the neck 40.
  • An inner sealing ring 111 and an outer sealing ring 112 downwardly extend from the bottom surface of the top panel 11, wherein the outer sealing ring 112 concentrically surrounds the inner sealing ring 111.
  • the inner sealing ring 1 11 and the outer sealing ring 112 define a sealing chamber "S" therebetween within which to sealingly receive an annular inlet portion of the neck
  • Both the inner sealing ring 11 1 and the outer sealing ring 112 have an annular construction that allow them to elastically deform and/or comply to the complementary sealing structures on the neck 40.
  • an outwardly facing annular lobe 111a on the inner sealing ring 111 is configured to sealingly contact an inner sealing surface of the neck 40.
  • an inner surface of the outer sealing ring 112 is configured to
  • the screw cap 20 further includes a number of radial stops 24 that project from the bottom surface of the top panel 11 in between the inner sealing ring 111 and the outer sealing ring 112, and that join the inner sealing ring 111 with the outer sealing ring 112.
  • the radial stops 24 control the application height of the screw cap 20 onto the neck 40.
  • the foregoing may be appreciated with reference to FIG. 3 wherein one of the radial stops 24 is shown in abutment with the top face of the annular neck 40.
  • Each radial stop 24 rises up a little bit from the bottom surface of the sealing chamber "S.” Without the stops 24, the neck 40 would be easily able to further 0 penetrate the sealing chamber "S" by about the height of the stops, the outer sealing ring 112 in particular being forced to expand even further, thereby resting more firmly and tightly against the inlet of the neck 40. Furthermore, with reduced contact surface between the cap 20 and the neck 40 at the areas of the stops 24, the cap 20 requires less opening torque.
  • the tamper evident band 14 is connected to the open end of the sidewall 12 by a plurality of bridges 143.
  • the bridges 143 are small webs of material that are broken with first attempted removal of the screw cap 20 from the neck 40.
  • a series of annularly- spaced cams 142 are provided on an inner face of the tamper evident band 14, and are joined together by a shallow taper ring 141.
  • This preload improves performance of the screw cap 10 during opening thereof by ensuring proper bridge breaking, reduced hinge band (i.e. one or more bridges that fail to break), and otherwise limit the possibility of being able to remove the tamper band without breaking of the bridges (i.e. tamper evidence).
  • the neck 40 is less deformable than the inner sealing ring 111 and the outer sealing ring 112.
  • the inner sealing ring 111 has a maximum outer diameter at the annular lobe 111a and a minimum outer diameter at a region closer to the top plate 11.
  • the inner diameter of the neck collar 40 is generally uniform, slightly smaller than the maximum outer diameter
  • the top panel 11 is further provided with an small undercut 19 on the bottom surface of the top plate 11 surrounding the inner foot of the inner sealing ring 111.
  • the undercut 19 provides for additional flexibility of the top panel 11 in the region of the inner sealing ring 11 1 that functions like a hinge to somewhat decouple deformation movement of the top panel 11 from the inner sealing ring 1 11 thereby allowing it to stay in sealing contact with the neck 40.
  • FIG. 4 illustrates an internal structure of a screw cap in accordance with one of the example embodiments of the present disclosure. As illustrated, a total of eight radial stops 24 are uniformly distributed between the first sealing ring 111 and the second sealing ring 112.
  • FIG. 5 is an enlarged sectional view of a part of a screw cap in accordance with one of the example embodiments of the present disclosure.
  • the annular undercut 19 has a curved portion having a radius of curvature R 3 ranged from 0.5 to 0.9 mm.
  • the cap 20 has a curved portion which has a radius of curvature R ranged from 0.3 to 0.7 mm, at the corner between the top panel 11 and the sidewall 12.
  • the second sealing ring 112 has a
  • the top panel 11 has a thickness de ranged from 0.75 to
  • FIG. 6 is an enlarged sectional view of a stop of a screw cap in accordance with one of the example embodiments of the present disclosure.
  • the stop 24 has a trapezoid sectional view, the head surface of the stop 24 having a width d 7 ranged from 0.8 to2 mm, and the 15 bottom of the stop 24 having a width dg ranged from 1.0 to 2.8 mm.

Landscapes

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

Abstract

La présente invention porte de façon générale sur une capsule à vis qui est configurée pour encapsuler le col d'un récipient et qui comprend un panneau supérieur, une paroi latérale, une bague d'étanchéité interne et une bague d'étanchéité externe. Le panneau supérieur possède une surface supérieure et une surface inférieure. La paroi latérale fait saillie sur une périphérie de la surface inférieure du panneau supérieur et possède une ouverture à travers laquelle elle reçoit le col. La bague d'étanchéité interne s'étend vers le bas à partir de la surface inférieure du panneau supérieur, tandis que la bague d'étanchéité externe s'étend vers le bas à partir de la surface inférieure du panneau supérieur et entoure de façon concentrique la bague d'étanchéité interne. Le panneau supérieur présente de plus une petite gorge sur la surface inférieure, entourant le pied interne de la bague d'étanchéité interne de façon à former une première épaisseur, la surface supérieure et la surface inférieure entre la bague d'étanchéité interne et la bague d'étanchéité externe formant une seconde épaisseur, la seconde épaisseur étant supérieure à la première épaisseur.
PCT/CA2014/050654 2013-10-28 2014-07-10 Capsule à vis pour récipients WO2015061892A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320668587.4U CN203780992U (zh) 2013-10-28 2013-10-28 容器的瓶盖
CN201320668587.4 2013-10-28

Publications (1)

Publication Number Publication Date
WO2015061892A1 true WO2015061892A1 (fr) 2015-05-07

Family

ID=51317203

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2014/050654 WO2015061892A1 (fr) 2013-10-28 2014-07-10 Capsule à vis pour récipients

Country Status (2)

Country Link
CN (1) CN203780992U (fr)
WO (1) WO2015061892A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018154341A (ja) * 2017-03-15 2018-10-04 日本クロージャー株式会社 合成樹脂製容器蓋
US11198543B2 (en) 2017-04-13 2021-12-14 Husky Injection Molding Systems Ltd. Closure devices

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104367094B (zh) * 2014-10-21 2017-01-11 杭州康永生物技术有限公司 密封环及杯盖
EP3365243A4 (fr) 2015-10-23 2019-08-07 Husky Injection Molding Systems Luxembourg IP Development S.à.r.l Récipients et fermetures
CN105398665A (zh) * 2015-11-27 2016-03-16 中山汇伟塑胶工业有限公司 一种塑料瓶盖
JP7302959B2 (ja) * 2018-10-30 2023-07-04 日本クロージャー株式会社 合成樹脂製容器蓋

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079700A (en) * 1965-07-01 1967-08-16 Hopf A Metallwerke Kg Improvements in or relating to screw caps for bottles or the like
US3568871A (en) * 1969-05-12 1971-03-09 Jay G Livingstone Closure cap
US4461392A (en) * 1982-06-22 1984-07-24 American Safety Closure Corp. Threaded plastic bottle cap
US4907709A (en) * 1987-11-11 1990-03-13 Dainippon Ink And Chemicals, Inc. Combination of synthetic resin bottle and closure therefor
US6338414B1 (en) * 1998-03-03 2002-01-15 International Packaging Engineering Plastic closing cap with a separable safety seal and inner seal
US20020074306A1 (en) * 1997-02-14 2002-06-20 Gunter Krautkramer Plastic screw closure
US20020158037A1 (en) * 2001-02-08 2002-10-31 Yuji Kano Plastic container closure
WO2004050496A1 (fr) * 2002-11-29 2004-06-17 Gefit S.P.A. Bouchons en plastique
US20050247663A1 (en) * 2002-09-30 2005-11-10 Okten Gassner Screw cap for pressurised containers
WO2007147206A1 (fr) * 2006-06-19 2007-12-27 Amcor Limited Encapsulage et goulot de bouteille
WO2008098362A1 (fr) * 2007-02-13 2008-08-21 Crealise Conditionnement Inc. Bouchon sans joint rapporte
US20120037589A1 (en) * 2009-01-30 2012-02-16 Beeson And Sons Limited Container closure assembly with pressure seal
CN203064386U (zh) * 2012-12-21 2013-07-17 赫斯基注射器成型系统有限公司 瓶盖

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079700A (en) * 1965-07-01 1967-08-16 Hopf A Metallwerke Kg Improvements in or relating to screw caps for bottles or the like
US3568871A (en) * 1969-05-12 1971-03-09 Jay G Livingstone Closure cap
US4461392A (en) * 1982-06-22 1984-07-24 American Safety Closure Corp. Threaded plastic bottle cap
US4907709A (en) * 1987-11-11 1990-03-13 Dainippon Ink And Chemicals, Inc. Combination of synthetic resin bottle and closure therefor
US20020074306A1 (en) * 1997-02-14 2002-06-20 Gunter Krautkramer Plastic screw closure
US6338414B1 (en) * 1998-03-03 2002-01-15 International Packaging Engineering Plastic closing cap with a separable safety seal and inner seal
US20020158037A1 (en) * 2001-02-08 2002-10-31 Yuji Kano Plastic container closure
US20050247663A1 (en) * 2002-09-30 2005-11-10 Okten Gassner Screw cap for pressurised containers
WO2004050496A1 (fr) * 2002-11-29 2004-06-17 Gefit S.P.A. Bouchons en plastique
WO2007147206A1 (fr) * 2006-06-19 2007-12-27 Amcor Limited Encapsulage et goulot de bouteille
WO2008098362A1 (fr) * 2007-02-13 2008-08-21 Crealise Conditionnement Inc. Bouchon sans joint rapporte
US20120037589A1 (en) * 2009-01-30 2012-02-16 Beeson And Sons Limited Container closure assembly with pressure seal
CN203064386U (zh) * 2012-12-21 2013-07-17 赫斯基注射器成型系统有限公司 瓶盖

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018154341A (ja) * 2017-03-15 2018-10-04 日本クロージャー株式会社 合成樹脂製容器蓋
US11198543B2 (en) 2017-04-13 2021-12-14 Husky Injection Molding Systems Ltd. Closure devices
US11643255B2 (en) 2017-04-13 2023-05-09 Husky Injection Molding Systems Ltd. Closure devices
EP4219334A1 (fr) * 2017-04-13 2023-08-02 Husky Injection Molding Systems Luxembourg IP Development S.à.r.l Fermetures

Also Published As

Publication number Publication date
CN203780992U (zh) 2014-08-20

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