WO2005092729A1 - Capsule inviolable et recipient ainsi pourvu - Google Patents

Capsule inviolable et recipient ainsi pourvu Download PDF

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Publication number
WO2005092729A1
WO2005092729A1 PCT/EP2005/051322 EP2005051322W WO2005092729A1 WO 2005092729 A1 WO2005092729 A1 WO 2005092729A1 EP 2005051322 W EP2005051322 W EP 2005051322W WO 2005092729 A1 WO2005092729 A1 WO 2005092729A1
Authority
WO
WIPO (PCT)
Prior art keywords
closure
tamper evident
container
evident band
retaining
Prior art date
Application number
PCT/EP2005/051322
Other languages
English (en)
Inventor
Lino Dreyer
Original Assignee
Crown Packaging Technology, Inc.
Crown Packaging Uk Plc
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 Crown Packaging Technology, Inc., Crown Packaging Uk Plc filed Critical Crown Packaging Technology, Inc.
Publication of WO2005092729A1 publication Critical patent/WO2005092729A1/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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure

Definitions

  • the invention relates to a closure with a tamper evident band comprising particular features as recited in the claims attached hereto.
  • tamper evident bands are removably attached to the skirt of a closure, typically by means of frangible bridges or by means of a frangible line. These frangible connections may be made by moulding or by scoring a closure after moulding.
  • a tamper evident band which is provided with connecting bridges in the form of inwardly projecting ribs arranged on an inner surface of the tamper evident band.
  • a frangible connection is formed by scoring a circumferential score line on the outer surface of the closure, thereby forming a gap between the cap skirt and the tamper evident band.
  • the inwardly projecting ribs are, however, not scored and thereby form a frangible connection.
  • a known problem of current closures is that, if enough time and effort is employed, the closure may be pried off and re-fitted without the tampering being evident.
  • US 4197960 --. teaches that if the tamper band has a radius that is slightly less than that of the corresponding bead on the container neck and is arranged to extend between axial posts the band will be de-formed so that it forms a non-circular polygon which in portions underlies the corresponding bead on the container neck. This makes it more difficult for the closure to prised off.
  • the axial posts obstruct the tamper band from underlying the corresponding bead on the container neck about the entire circumference. Further, the presence of the axial posts considerably increases the weight and quantity of material used in the manufacture of the closures.
  • the invention provides a closure comprising a cap part and a tamper evident band having a retaining bead with a retaining surface for retaining the tamper evident band below a corresponding retention bead of a container, the closure further comprising connecting bridges removably connecting said tamper evident band to the cap part, wherein the connecting bridges are arranged on an inner surface of the tamper evident band and extend axially from a lower edge of the closure cap to the retaining surface, wherein the connecting bridges are adapted so that the radius of their inner surface is less than the outer radius of the retention bead of the container, so that with the closure fitted to a container the tamper evident band takes the form of a non- circular polygon, and wherein the retaining surface is adapted so that when fitted to a container it is retained below the corresponding retention bead of the container about the entire circumference of the closure.
  • the tamper evident band is removably connected to the closure cap by means of frangible connecting bridges.
  • the connecting bridges are arranged on an inner surface of the tamper evident band and are attached to the closure cap.
  • the connecting bridges extend to the retaining surface of the retaining elements and thus strengthen the tamper evident band and thereby avoid inward tucking of the band during application.
  • the bridges tend to sit on the container neck.
  • the inwardly extending bridges allow an easy manufacturing process for the closure.
  • Connecting bridges which axially extend to the retaining surface of the retaining elements also allow for an easier demoulding of the closure from a mould.
  • the retaining element may be formed by an extending rib or bead.
  • other retaining elements known to those skilled in the art are conceivable.
  • the radially inner surface of the connecting bridges is furthermore designed to have a free inner radius corresponding roughly to or slightly smaller than an outer radius of the retaining bead of a standard container.
  • the radially inner surfaces of the connecting bridges contact the radial outer surface of the retaining bead.
  • the tamper evident band is deformed to a non circular, typically a roughly polygonal shape.
  • the connecting bridges contact the outer surface of the retaining bead, the tamper evident band sits firmly on the retaining bead of the container. This leads to an enhanced tamper evident property of the closure according to the present invention.
  • the lower edge of the closure cap may ⁇ be provided with at least one annular lip which is arranged radially inwardly of at least one of the connecting bridges and which extends downwardly from the edge of the cap skirt.
  • This annular lip is arranged adjacent to the bridge in such a way that it radially supports the connecting bridges and further aids the avoidance of inward folding of the bridges.
  • this annular lip may be formed as one circumferentially extending lip. It is, however, also conceivable to provide separate segments of a lip adjacent at least one or each of the connecting bridges. While this arrangement is especially advantageous in context with connecting bridges as disclosed above, it might be used with any design of connecting bridges.
  • the connecting bridges are evenly distributed around the circumference of the tamper evident band. Typically, there may be ten to twenty connecting bridges.
  • Figure 1 shows a cross-section through the closure to be described
  • Figure 2 shows another cross-section through the closure to be described
  • Figure 3 shows a cross-section of an enlarged view of a tamper evident band of the closure
  • Figure 4 shows another cross-section of an enlarged view of a tamper evident band engaging below a retaining bead of a container
  • Figure 5 shows a cross-section through a retaining bead and a tamper evident band along a radial plane AA of figure 4.
  • Figure 1 shows a closure 1.
  • the closure 1 basically consists of a closure cap 10 and a tamper evident band 20.
  • the tamper evident band 20 is connected to the closure cap 10 by means of connecting bridges 23.
  • the connecting bridges 23 are formed as radially inwardly projecting ribs arranged on an inner surface 24 of the tamper evident band 20.
  • the connecting bridges 23 typically have a rectangular cross-section in a plane perpendicular to the axis of the closure.
  • the inner surface 24 of the tamper evident band 20 is further provided with retaining elements 21 having a retaining surface 22 designed to engage below a retention bead 31 of a container 30 (see fig. 2).
  • the connecting bridges 23 extend in the axial direction A to the retaining surface 22 of the retaining bead 21.
  • the retaining bead 21 is formed as a circumferentially extending rib. It could, however, also be formed by a plurality of separate retaining beads. In this case, the retaining beads could be circumferentially aligned with the connecting bridges. Alternatively, the bridges could be a ⁇ anged in gaps between the beads.
  • a gap 15 is formed between a tamper evident band 20 and the closure cap 10.
  • the gap 15 is typically formed during moulding. It would, however, also be possible to apply a score line after moulding of the closure cap 10.
  • the closure is typically made by injection moulding of a plastic material such as PE.
  • the closure cap 10 is furthermore provided with a thread 12 for application to a corresponding thread of a container.
  • the closure may be further provided with sealing means, e.g. with a sealing lip 13 in order to sealingly close a container.
  • sealing means e.g. with a sealing lip 13 in order to sealingly close a container.
  • other sealing arrangements such as e.g. sealing disc known to those skilled in the art are conceivable.
  • FIG. 2 shows a part of the closure 10 applied to a container 30.
  • the container 30 is provided with a retention bead 31.
  • the retention bead 31 has a lower retaining surface 33 for the retaining elements 21 of the closure 10.
  • the tamper evident band 20 is locked below the retention bead 31 with the retaining surface 22 of the retaining elements 21.
  • the free inner radius R defined by the inner surface 25 of the connecting bridges 23 is chosen in such a way that the inner surface 25 of the connecting bridges 23 contacts a radially outer surface 32 of the retention bead 31 of the container 30.
  • the connecting bridges 23 will now be shown in more detail in figures 3 and 4.
  • the connecting bridge 23 is attached to a lower edge 11 of the closure cap 10 and it extends axially across the inner surface 24 of the tamper evident band 20 to the retaining surface 22 of the retaining element 21.
  • the connecting bridge 23 could extend axially further down, e.g. to the lower edge of the tamper evident band 20.
  • annular retaining lip 14 which is a ⁇ anged radially inwardly adjacent to the connecting bridges 23.
  • the connecting bridges 23 are supported by this annular lip 14 whereby inward folding of the bridges is prevented.
  • the inner surface 25 of the connecting bridges 23 is contacting the outer surface 32 of the retention bead 31 of a container 30 when the closure is applied to the container 30.
  • Figure 5 shows a cross-section through a container neck and the tamper evident band 20 according to the present invention along the plane AA of figure 4.
  • the radially inner surface 25 of the connecting bridges 23 contacts the outer surface 32 of the retention bead 31 of the closure. This is achieved by selecting the inner free radius R of the inner surface 25 of the connecting bridges 23 substantially equal to or slightly smaller than the radius r of the radially outer surface 32 of the retention bead 31.
  • the tamper evident band 20 is formed into a non circular/typically into a 16-sided polygon in the case of 16 connecting bridges 23. The tamper evident band 20 thus sits firmly on the retention bead 31.

Landscapes

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

Abstract

La présente invention concerne un capsulage (1) constitué de la capsule proprement-dite (10) et d'une bande d'inviolabilité (20). Cette bande comporte un bourrelet de retenue (21) présentant une surface de retenue (22) servant à retenir la bande d'inviolabilité en dessous d'un bourrelet de retenue correspondant (31) du récipient (30). Le capsulage comporte également des pattes de liaison (23) reliant amovible la bande d'inviolabilité (20) à la capsule (10). Ces pattes de liaison (23), qui sont situées sur une face intérieure (24) de la bande d'inviolabilité (20), partent axialement d'un bord inférieur (11) de la capsule et aboutissent à la surface de retenue (22) du bourrelet (21) de la bande (20). De plus, les pattes de liaison (23) sont calculées pour que le rayon de leur face intérieure soit inférieur au rayon extérieur du bourrelet de retenue (31) du récipient, ce qui fait que lorsque le capsulage (1) est monté sur le récipient (30), la bande d'inviolabilité (20) prend la forme d'un polygone non circulaire. En outre, la surface de retenue (22) du bourrelet (21) de la bande (20) est conçu pour que, lorsque le capsulage est monté sur le récipient (30), elle prenne en dessous du bourrelet de retenue (31) du récipient sur la totalité du pourtour du capsulage.
PCT/EP2005/051322 2004-03-25 2005-03-22 Capsule inviolable et recipient ainsi pourvu WO2005092729A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04007155 2004-03-25
EP04007155.7 2004-03-25

Publications (1)

Publication Number Publication Date
WO2005092729A1 true WO2005092729A1 (fr) 2005-10-06

Family

ID=34924526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/051322 WO2005092729A1 (fr) 2004-03-25 2005-03-22 Capsule inviolable et recipient ainsi pourvu

Country Status (1)

Country Link
WO (1) WO2005092729A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197960A (en) * 1978-11-01 1980-04-15 The Continental Group, Inc. Pilferproof container
US4401227A (en) * 1981-08-17 1983-08-30 Pehr Harold T Tamper indicating closure cap
US4749095A (en) * 1987-05-28 1988-06-07 Owens-Illinois Closure Inc. Tamper-indicating closure and package
US4890754A (en) * 1989-05-26 1990-01-02 Zapata, Industries, Inc. Pilfer-resistant plastic closure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197960A (en) * 1978-11-01 1980-04-15 The Continental Group, Inc. Pilferproof container
US4401227A (en) * 1981-08-17 1983-08-30 Pehr Harold T Tamper indicating closure cap
US4749095A (en) * 1987-05-28 1988-06-07 Owens-Illinois Closure Inc. Tamper-indicating closure and package
US4890754A (en) * 1989-05-26 1990-01-02 Zapata, Industries, Inc. Pilfer-resistant plastic closure

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