EP0645318A1 - Verschlusssystem für stilles Wasser enthaltende Flaschen - Google Patents

Verschlusssystem für stilles Wasser enthaltende Flaschen Download PDF

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Publication number
EP0645318A1
EP0645318A1 EP94830426A EP94830426A EP0645318A1 EP 0645318 A1 EP0645318 A1 EP 0645318A1 EP 94830426 A EP94830426 A EP 94830426A EP 94830426 A EP94830426 A EP 94830426A EP 0645318 A1 EP0645318 A1 EP 0645318A1
Authority
EP
European Patent Office
Prior art keywords
thread
cap
bottle
angle
neck
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.)
Withdrawn
Application number
EP94830426A
Other languages
English (en)
French (fr)
Inventor
Emilio Morini
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.)
Bormioli Metalplast SpA
Original Assignee
Bormioli Metalplast SpA
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 Bormioli Metalplast SpA filed Critical Bormioli Metalplast SpA
Publication of EP0645318A1 publication Critical patent/EP0645318A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B65D41/32—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

Definitions

  • the invention relates to a capping system for bottles containing still water.
  • a first type of such caps is pressure-inserted on the bottle neck, closing the bottle mouth. This type is not a favourite with consumers since the bottle is both difficult to open and to close.
  • screw-on cap which couples with the bottle by means of one thread internal of the cap and another external of the bottle neck.
  • this type of cap causes problems in the bottling plant, since automatic machines have to be predisposed to perform the screwing-on operation and therefore have to incorporate more complex devices than those needed for a simple pressure-insertion of the cap on the bottle neck.
  • a screw-cap represents a guarantee against loss of pressure for bottles containing gassy liquids, where still liquids are concerned this is not a problem, so the choice of using a screw-on cap for still liquids is made with the consumers' preference in mind.
  • the present invention aims to obviate the above-mentioned problems by providing a capping system for bottles containing still water which employs simple and rapid automatic machines for capping the bottles and which provides a simple screw-on and off operation for the consumer.
  • a further aim of the invention is to provide a capping system wherein the cap, like many known-type caps, is made in a single piece and exhibits a safety strip.
  • An advantage of the capping system is that the bottle can be capped by automatic machines both simply and rapidly and without the need to use lubricants which sometimes have to added to the plastic materials to enhance machine operability.
  • the capping system is utilized for plastic bottles containing still water.
  • the system comprises a neck 5 made together with the rest of the bottle and defining the bottle mouth itself.
  • the neck is externally provided with a thread 1, preferably extending over four or more starts.
  • the external surface of the neck 5 is upwardly truncoconical with a cone angle ⁇ of between 1 and 5 degrees; it is considered that the best results are obtained at an angle ⁇ of about 3 degrees.
  • the thread 1 exhibits an upper surface 1a, facing the mouth of the bottle, and a lower surface 1b, facing away from the bottle mouth: the two surfaces 1a and 1b are not symmetrical.
  • the upper surface is curved and exhibits and angle ⁇ between the tangent of the upper surface and the perpendicular to the bottle axis (measured in an anticlockwise direction) which is smallest at the nearest point to the actual bottle neck and which grows outwardly until it is at its greatest at the end of the curve defining the upper surface 1a.
  • the lower surface 1b is more or less straight and exhibits an angle ⁇ between the tangent of the lower surface 1b and the perpendicular to the axis of the bottle, measured in a clockwise direction; this angle being constant over all of the length of the lower surface 1b.
  • the smallest angle ⁇ is always greater than angle ⁇ and the difference between the two angles is comprises between 5 degrees and 30 degrees.
  • the thread illustrated in figure 1 exhibits a smallest angle ⁇ which is of about 30 degrees, and an angle ⁇ which is of about 20 degrees.
  • the capping system further comprises an internally-threaded cap 2 provided with a safety ring 3 connected to the lower perimeter thereof by means of easy-break ribs 6.
  • the internal suface of the cap, bearing the thread 4 is truncoconical in the same way as the external surface of the bottle neck.
  • the thread 4 exhibits symmetrical lower and upper surfaces.
  • a seal ring 7 is fashioned into the upper surface of the cap 2 and is coaxial thereto, in a position such as to insert into the bottle neck 5 when the cap 2 is associated to said neck 5.
  • the maximum external diameter of the seal ring 7 is slightly greater than the internal diameter of the neck 5, so that when the ring 7 is inserted on to the bottle neck 5 a seal is obtained between the internal wall of the neck 5 and the external wall of the seal ring 7.
  • the cap 2 is about a third as long as its diameter, which is less than the usual ratio in normal caps utilized for plastic bottles containing either gassed or still water, and is possible because a long thread is rendered unnecessary by the absence of pressure inside the bottle, as well as by the fact that the seal ring 7 guarantees a seal.
  • the cap In the factory, at the moment of cap application, the cap is applied by a usual-type automatic machine on the bottle neck 5, and thanks to the truncoconical shape of the neck 5 and cap, the cap is immediately correctly positioned and inserted up to a considerable length on the neck 5.
  • the shape of the lower surface 1b of the thread 1 does not, however, permit of easily overcoming the screw coupling to open the bottle by pulling: the consumer must unscrew the cap in order to open the bottle. Naturally, the bottle could then be reclosed by simple pressure, but also by screwing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP94830426A 1993-09-24 1994-09-13 Verschlusssystem für stilles Wasser enthaltende Flaschen Withdrawn EP0645318A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO930121A IT1262665B (it) 1993-09-24 1993-09-24 Sistema di chiusura per bottiglie contenenti acqua non gassata.
ITMO930121 1993-09-24

Publications (1)

Publication Number Publication Date
EP0645318A1 true EP0645318A1 (de) 1995-03-29

Family

ID=11385477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94830426A Withdrawn EP0645318A1 (de) 1993-09-24 1994-09-13 Verschlusssystem für stilles Wasser enthaltende Flaschen

Country Status (2)

Country Link
EP (1) EP0645318A1 (de)
IT (1) IT1262665B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102795393A (zh) * 2012-09-06 2012-11-28 湖南乐福地医药包材科技有限公司 瓶盖及具有该瓶盖的饮料包装
US11981478B2 (en) * 2016-07-29 2024-05-14 Yoshino Kogyosho Co., Ltd. Container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010313A1 (en) * 1988-04-25 1989-11-02 Alfatechnic Ag Process for mounting plastic closures
EP0540786A1 (de) * 1990-08-09 1993-05-12 Cap Snap Co. Aufschraub- und Schnappverschluss und Behälterhals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010313A1 (en) * 1988-04-25 1989-11-02 Alfatechnic Ag Process for mounting plastic closures
EP0540786A1 (de) * 1990-08-09 1993-05-12 Cap Snap Co. Aufschraub- und Schnappverschluss und Behälterhals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102795393A (zh) * 2012-09-06 2012-11-28 湖南乐福地医药包材科技有限公司 瓶盖及具有该瓶盖的饮料包装
US11981478B2 (en) * 2016-07-29 2024-05-14 Yoshino Kogyosho Co., Ltd. Container

Also Published As

Publication number Publication date
ITMO930121A1 (it) 1995-03-24
IT1262665B (it) 1996-07-04
ITMO930121A0 (it) 1993-09-24

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