EP1472151B1 - Threaded cap provided with tamper-evident band - Google Patents

Threaded cap provided with tamper-evident band Download PDF

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Publication number
EP1472151B1
EP1472151B1 EP03703533A EP03703533A EP1472151B1 EP 1472151 B1 EP1472151 B1 EP 1472151B1 EP 03703533 A EP03703533 A EP 03703533A EP 03703533 A EP03703533 A EP 03703533A EP 1472151 B1 EP1472151 B1 EP 1472151B1
Authority
EP
European Patent Office
Prior art keywords
collar
neck
ring
blocking
ring segment
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
EP03703533A
Other languages
German (de)
French (fr)
Other versions
EP1472151A1 (en
Inventor
Laurens Last
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.)
IPN IP BV
Original Assignee
IPN IP BV
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 IPN IP BV filed Critical IPN IP BV
Publication of EP1472151A1 publication Critical patent/EP1472151A1/en
Application granted granted Critical
Publication of EP1472151B1 publication Critical patent/EP1472151B1/en
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
    • B65D41/32—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
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt

Definitions

  • the invention relates to a combination of a container having a neck, which surrounds an opening in the container, and a plastic collar, which can be screwed onto the neck, in accordance with the preamble of claim 1.
  • the invention also relates to a plastic collar which is intended for a combination of this type and to an object in which a collar of this type is integrated.
  • the collar may, for example, form (an integral) part of a closure member for the container.
  • the collar is an integral part of a screw cap, for example having a closure wall running transversely with respect to the circumferential wall of the collar.
  • the collar could also be designed as a securing collar for fixing an object, for example a pump enabling the contents of the container to be dispensed via the pump, in the neck of the container.
  • US 5,819,965 has disclosed a screw cap with tamper-evident ring, in which breakable bodies are present between that part of the collar of the screw cap which is provided with the screw thread and the tamper-evident ring.
  • the breakable bodies break and the tamper-evident ring remains behind on the neck of the container.
  • DE 87 16625 has disclosed a screw cap with a tamper-evident ring to which flexible blocking members are secured, the document disclosing ring segments and breakable bridges between the ring segments.
  • a significant drawback of this known screw cap is that it is difficult to produce it by injection-moulding, since the flexible blocking members are oriented in such a manner with respect to the cap that they point towards the cap. If this device is made in a mould using the injection-moulding method, the cap will be very difficult to remove from the mould after the injection-moulding has taken place. It is impeded by the flexible blocking members. The cap or the mould will have to be deformed in order for the cap to be removed from the mould.
  • Another object is to provide a plastic collar which allows simple production. -
  • each connecting body extends radially inwards from the top side of the ring segment, and each ring segment has an associated single connecting body which extends over a smaller circumferential angle than the associated ring segment, so that there is an opening between circumferentially successive connecting bodies, and the blocking member which is associated with a ring segment being arranged offset, as seen in the circumferential direction, with respect to the connecting body.
  • the present invention also provides a plastic collar according to claim 5.
  • the figures show a combination of a spout 1 and a screw cap 20.
  • the spout 1 is made from plastic and is intended to be sealed in a film/foil pouch, so that the spout 1 forms part of a container, for example for a beverage which is suitable for human consumption.
  • the spout 1 has a body with a substantially cylindrical neck 2, which surrounds an opening 3, in the present example of a passage for supplying a medium to the container and/or discharging a medium from the container.
  • the bottom part 5 of the spout 1 is designed to be sealed between two opposite walls of the film/foil pouch.
  • the neck 2 is provided, in its top part, with a first screw thread 6. Furthermore, beneath the first screw thread 6 the neck 2 is provided with a blocking rib 7 which projects radially outwards.
  • the spout body 1 is provided with a number of further circumferential ribs 8 which are used to enable the spout body to be handled.
  • the screw cap 20 is likewise produced by injection-moulding in a suitable injection mould.
  • the screw cap 20 has a collar 21, which can be screwed onto the neck 2 and has a transverse wall 22, which extends transversely over the top side of the collar 21, and has an underside 23 and an outer circumference, which in this case is provided with ribs for improving grip on the screw cap 20.
  • the collar 21 is provided, on the inner side, with a second screw thread 24, which is complementary to the first screw thread 6 in order for the cap 20 to be screwed onto the neck 2.
  • the screw cap 20 On the underside, the screw cap 20 is provided with a tamper-evident ring 25, which will be explained in more detail below with reference to Figures 1-4.
  • the tamper-evident ring 25 has a plurality of ring segments 26, in the present example three, which lie adjacent to one another as seen in the circumferential direction of the ring 25.
  • each ring segment 26 is provided, on the inner side, with an inwardly projecting flexible blocking member 27.
  • each blocking member 27 is designed as a flexible lip which projects obliquely upwards from the inner side of the ring segment 26 and is integral with the ring segment 26 only at its bottom end.
  • each ring segment 26 is integrally connected to the collar 21 via a single, unbreakable and flexible connecting body 28.
  • the connecting body 28 extends radially inwards from the top edge of the ring segment 26 and adjoins the bottom edge 23 of the circumferential wall 21 of the screw cap 20.
  • the connecting body 28 extends over a smaller circumferential angle than the associated ring segment 26, so that there is an opening 29 between circumferentially successive connecting bodies 28.
  • the blocking member 27 associated with a ring segment 26 is arranged offset, as seen in the circumferential direction, with respect to the connecting body 28.
  • the connecting body 28 is located in the vicinity of the front end, as seen in the unscrewing direction, of a ring segment 26 and the blocking member 28 behind it, in this example close to the rear end of the associated ring segment 26.
  • a significant advantage of the measures described above is that it is possible to make do with a relatively simple injection mould for production of the screw cap 20.
  • Each ring segment 26 is connected to the adjacent ring segments 26 via thin, breakable bridges 30. These bridges 30 are in this case located close to the bottom edge of the ring segments 26.
  • the design of the cap 20, and in particular of the tamper-evident ring 25 thereof, means that when the cap 20 is being screwed onto the neck 2, the flexible lips 27 pass over the blocking rib 7 without the breakable bridges 30 being damaged. In this way, the lips 27 then engage behind the underside of the blocking rib 7.
  • the lips 27 come into contact with the underside of the blocking rib 7.
  • the forces generated in the tamper-evident ring 25 are such that one or more breakable bridges 30 of the tamper-evident ring 25 break.
  • the ring segments 26 with the lips 27 can move outwards and the lips 27 can move past the blocking rib 7.
  • neck may also form an integral part of a container, for example a (plastic) bottle.

Abstract

A container having a neck ( 2 ), which surrounds an opening ( 3 ) in the container, and a plastic collar ( 21 ), which can be screwed onto the neck and has a top side and an underside and an outer circumference. The neck is provided with a first screw thread and the collar is provided with a second screw thread ( 24 ). Beneath the fist screw thread, the neck is provided with a blocking rib ( 7 ) which projects nalially outwards. On the underside, the collar is provided with a tamper-evident ring ( 25 ), which ring is provided, on the inner circumference, with inwardly projecting flexible blocking members ( 27 ), which are distributed around the circumference, in such a manner that when the collar is being screwed onto the neck the flexible blocking members pass over the blocking rib, and when the collar is being unscrewed the blociccng rib forms a stop for the blocking members, resulting in one or more parts of the collar being broken.

Description

  • The invention relates to a combination of a container having a neck, which surrounds an opening in the container, and a plastic collar, which can be screwed onto the neck, in accordance with the preamble of claim 1. The invention also relates to a plastic collar which is intended for a combination of this type and to an object in which a collar of this type is integrated.
  • The collar may, for example, form (an integral) part of a closure member for the container.
  • In a preferred application of the invention, the collar is an integral part of a screw cap, for example having a closure wall running transversely with respect to the circumferential wall of the collar.
  • The collar could also be designed as a securing collar for fixing an object, for example a pump enabling the contents of the container to be dispensed via the pump, in the neck of the container.
  • All kinds of different embodiments of a combination according to the preamble of claim 1 and a collar which is intended for this combination are known.
  • US 5,819,965 has disclosed a screw cap with tamper-evident ring, in which breakable bodies are present between that part of the collar of the screw cap which is provided with the screw thread and the tamper-evident ring. When the cap is unscrewed for the first time, the breakable bodies break and the tamper-evident ring remains behind on the neck of the container.
  • One drawback of this known screw cap is that the tamper-evident ring remains behind on the container. Particularly if the container is intended for a beverage which is suitable for human consumption and it is intended or can be expected that the consumer will put the container to his mouth in order to drink the beverage, there is a risk of the tamper-evident ring becoming detached and entering the mouth.
  • DE 87 16625 has disclosed a screw cap with a tamper-evident ring to which flexible blocking members are secured, the document disclosing ring segments and breakable bridges between the ring segments.
  • A significant drawback of this known screw cap is that it is difficult to produce it by injection-moulding, since the flexible blocking members are oriented in such a manner with respect to the cap that they point towards the cap. If this device is made in a mould using the injection-moulding method, the cap will be very difficult to remove from the mould after the injection-moulding has taken place. It is impeded by the flexible blocking members. The cap or the mould will have to be deformed in order for the cap to be removed from the mould.
  • It is an object of the present invention to provide an improved plastic collar which avoids the abovementioned drawback.
  • Another object is to provide a plastic collar which allows simple production. -
  • The present invention provides a combination according to the preamble of claim 1, which is characterized in that each connecting body extends radially inwards from the top side of the ring segment, and each ring segment has an associated single connecting body which extends over a smaller circumferential angle than the associated ring segment, so that there is an opening between circumferentially successive connecting bodies, and the blocking member which is associated with a ring segment being arranged offset, as seen in the circumferential direction, with respect to the connecting body.
  • The present invention also provides a plastic collar according to claim 5.
  • The plastic collar according to the invention which can be screwed onto the neck of a container, and advantageous embodiments thereof, will be explained in more detail below with reference to the drawing, in which:
    • Fig. 1
    shows a perspective view of an exemplary embodiment of a screw cap according to the invention and a spout which can be sealed in a film/foil pouch and has a neck onto which the cap can be screwed,
    Fig. 2
    shows a side view of the screw cap and spout shown in Figure 1, with the cap having been screwed onto the neck of the spout,
    Fig. 3
    shows a plan view, on a larger scale, of the screw cap and spout from Figures 1 and 2, and
    Fig. 4
    shows a vertical section, on a larger scale, through the screw cap and spout shown in Figures 1 and 2, on line IV-IV in Figure 3.
  • The figures show a combination of a spout 1 and a screw cap 20.
  • The spout 1 is made from plastic and is intended to be sealed in a film/foil pouch, so that the spout 1 forms part of a container, for example for a beverage which is suitable for human consumption.
  • The spout 1 has a body with a substantially cylindrical neck 2, which surrounds an opening 3, in the present example of a passage for supplying a medium to the container and/or discharging a medium from the container.
  • The bottom part 5 of the spout 1 is designed to be sealed between two opposite walls of the film/foil pouch.
  • The neck 2 is provided, in its top part, with a first screw thread 6. Furthermore, beneath the first screw thread 6 the neck 2 is provided with a blocking rib 7 which projects radially outwards.
  • In this example, the spout body 1 is provided with a number of further circumferential ribs 8 which are used to enable the spout body to be handled.
  • The screw cap 20 is likewise produced by injection-moulding in a suitable injection mould.
  • The screw cap 20 has a collar 21, which can be screwed onto the neck 2 and has a transverse wall 22, which extends transversely over the top side of the collar 21, and has an underside 23 and an outer circumference, which in this case is provided with ribs for improving grip on the screw cap 20.
  • The collar 21 is provided, on the inner side, with a second screw thread 24, which is complementary to the first screw thread 6 in order for the cap 20 to be screwed onto the neck 2.
  • On the underside, the screw cap 20 is provided with a tamper-evident ring 25, which will be explained in more detail below with reference to Figures 1-4.
  • The tamper-evident ring 25 has a plurality of ring segments 26, in the present example three, which lie adjacent to one another as seen in the circumferential direction of the ring 25.
  • Each ring segment 26 is provided, on the inner side, with an inwardly projecting flexible blocking member 27. In this example, each blocking member 27 is designed as a flexible lip which projects obliquely upwards from the inner side of the ring segment 26 and is integral with the ring segment 26 only at its bottom end.
  • On its top side, each ring segment 26 is integrally connected to the collar 21 via a single, unbreakable and flexible connecting body 28.
  • In this case, the connecting body 28 extends radially inwards from the top edge of the ring segment 26 and adjoins the bottom edge 23 of the circumferential wall 21 of the screw cap 20.
  • The connecting body 28 extends over a smaller circumferential angle than the associated ring segment 26, so that there is an opening 29 between circumferentially successive connecting bodies 28. Moreover, the blocking member 27 associated with a ring segment 26 is arranged offset, as seen in the circumferential direction, with respect to the connecting body 28.
  • In particular, in the embodiment shown the connecting body 28 is located in the vicinity of the front end, as seen in the unscrewing direction, of a ring segment 26 and the blocking member 28 behind it, in this example close to the rear end of the associated ring segment 26. This arrangement of these components with respect to one another is advantageous with a view to unscrewing the cap 20, but other arrangements are also conceivable within the context of the invention.
  • A significant advantage of the measures described above is that it is possible to make do with a relatively simple injection mould for production of the screw cap 20.
  • Each ring segment 26 is connected to the adjacent ring segments 26 via thin, breakable bridges 30. These bridges 30 are in this case located close to the bottom edge of the ring segments 26.
  • The design of the cap 20, and in particular of the tamper-evident ring 25 thereof, means that when the cap 20 is being screwed onto the neck 2, the flexible lips 27 pass over the blocking rib 7 without the breakable bridges 30 being damaged. In this way, the lips 27 then engage behind the underside of the blocking rib 7.
  • When the cap 20 is being unscrewed for the first time, the lips 27 come into contact with the underside of the blocking rib 7. When the cap 20 is unscrewed further, the forces generated in the tamper-evident ring 25 are such that one or more breakable bridges 30 of the tamper-evident ring 25 break. As a result, the ring segments 26 with the lips 27 can move outwards and the lips 27 can move past the blocking rib 7.
  • It is important that the ring segments 26 remain integral with the screw cap 20 and therefore do not remain behind on the neck 2. The fact that the bridges 30 have broken is clearly visible, so the consumer can see whether the cap has previously been opened.
  • It will be clear that the neck may also form an integral part of a container, for example a (plastic) bottle.

Claims (5)

  1. A combination of a container having a neck (2), which surrounds an opening (3) in the container, and a plastic collar (21), which can be screwed onto the neck and has a top side and an underside and an outer circumference, the neck (2) being provided with a first screw thread (6) and the collar (21) being provided with a second screw thread (24), which is complementary to the first screw thread in order for the collar to be screwed onto the neck, and the neck of the container being provided, beneath the first screw thread, with a blocking rib (7) which projects radially outwards, and the collar being provided on the underside with a tamper-evident ring (25), which ring is provided on the inner circumference with inwardly projecting flexible blocking members (27), which are distributed around the circumference, in such a manner that when the collar is screwed onto the neck the flexible blocking members (27) pass over the blocking rib, and when the collar (21) is being unscrewed the blocking rib forms a stop for the blocking members (27), resulting in one or more parts of the collar breaking, the tamper-evident ring (25) comprising a plurality of ring segments (26) which lie next to one another in the circumferential direction, each ring segment (26) being provided, on the inner side, with a blocking member (27), and each ring segment (26), via at least one unbreakable and flexible connecting body (28), being integral with the collar, and each ring segment (26) being connected, via breakable bridges (30), to the adjacent ring segments, in such a manner that when the collar (21) is unscrewed for the first time, the blocking members (27) come into contact with the blocking rib (7) and break one or more breakable bridges (30) of the tamper-evident ring (25), so that the ring segment (26) with the blocking members (27) can move outwards and the blocking members can move past the blocking rib,
    characterized in that each connecting body (28) extends radially inwards from the top side of the ring segment (26), and each ring segment (26) has an associated single connecting body (28) which extends over a smaller circumferential angle than the associated ring segment, so that there is an opening (29) between circumferentially successive connecting bodies (28), and the blocking member (27) which is associated with a ring segment (26) being arranged offset, as seen in the circumferential direction, with respect to the connecting body (28).
  2. The combination according to claim 1, in which a blocking member (27) is a lip which projects obliquely upwards and inwards from the inner side of the ring segment (26).
  3. The combination according to one or more of the preceding claims, in which the breakable bridges (30) are located in the vicinity of the underside of the ring segments (26).
  4. The combination according to one or more of the preceding claims, in which the collar (21) forms part of a closure member for closing the opening in the neck of the container, in particular of a screw cap (20).
  5. Plastic collar according to one or more of the preceding claims which can be screwed onto a neck (2) of a container.
EP03703533A 2002-02-05 2003-02-05 Threaded cap provided with tamper-evident band Expired - Lifetime EP1472151B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1019903 2002-02-05
NL1019903A NL1019903C2 (en) 2002-02-05 2002-02-05 Collar screwable on a neck of a holder.
PCT/NL2003/000078 WO2003066461A1 (en) 2002-02-05 2003-02-05 Thereated cap provided with tamper-evident band

Publications (2)

Publication Number Publication Date
EP1472151A1 EP1472151A1 (en) 2004-11-03
EP1472151B1 true EP1472151B1 (en) 2006-05-24

Family

ID=27730965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03703533A Expired - Lifetime EP1472151B1 (en) 2002-02-05 2003-02-05 Threaded cap provided with tamper-evident band

Country Status (9)

Country Link
US (1) US20050199573A1 (en)
EP (1) EP1472151B1 (en)
AT (1) ATE327178T1 (en)
AU (1) AU2003207139A1 (en)
DE (1) DE60305445T2 (en)
ES (1) ES2263953T3 (en)
MX (1) MXPA04007591A (en)
NL (1) NL1019903C2 (en)
WO (1) WO2003066461A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6981602B2 (en) * 1997-08-01 2006-01-03 Portola Packaging, Inc. Tamper evident bottle cap
US8091253B2 (en) 2004-08-26 2012-01-10 The Procter & Gamble Company Fabric article treating device and system
US7527161B2 (en) * 2004-12-01 2009-05-05 Fisher Scientific Company L.L.C. Cap closure
US20100230410A1 (en) * 2006-04-03 2010-09-16 Ipn Ip B.V. Twist Cap Closure Assembly
US20090302064A1 (en) * 2008-06-10 2009-12-10 Marcel Lavabre Elastomeric dispensing pump that can be made with as few as two components
NL2008558C2 (en) 2012-03-29 2013-10-01 Ipn Ip Bv Container closure assemblies.
ES2795777T3 (en) * 2015-03-05 2020-11-24 Aptargroup Inc Annex and cover for the same
US11059633B2 (en) 2019-10-31 2021-07-13 Cheer Pack North America Flip-top closure for container
KR102657074B1 (en) * 2022-03-14 2024-04-12 (주) 성림 Safety cap for easy removal and discharging

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8018224U1 (en) * 1980-07-08 1980-10-30 Alcoa Gmbh Verpackwerke Plastic screw cap for threaded necked containers
FR2499519A1 (en) * 1981-02-11 1982-08-13 Grussen Jean SCREW CAPSULE WITH INVIOLABILITY RING
DE3224002A1 (en) * 1982-06-26 1983-12-29 Robert Finke KG, 5950 Finnentrop Tamper-proof closure
US4548329A (en) * 1984-08-16 1985-10-22 Curry John J Child resistant/tamper resistant cap
DE8716625U1 (en) * 1987-12-16 1988-03-24 Barein, Norbert, 4000 Duesseldorf, De
USRE32879E (en) * 1988-02-24 1989-02-28 Sunbeam Plastics Corporation Tamper indicating screw cap
US4930647A (en) * 1989-01-24 1990-06-05 Continental Plastics, Inc. Tamper indicating closure system utilizing axially extending ratchet
US5660289A (en) * 1991-06-29 1997-08-26 Alcoa Deutschland Gmbh Plastic cap for containers
ES1021753U (en) * 1992-05-29 1993-01-16 Novembal, S.A. Break-away safety cap for containers
EP0667827B1 (en) 1992-11-13 1997-04-16 Beeson And Sons Limited Container closure with tamper evident ring
US5853095A (en) * 1992-12-18 1998-12-29 White Cap, Inc. Tamper evident splitting closure
US5893474A (en) * 1994-06-24 1999-04-13 Crown Cork Ag Screw cap with anti-tamper strip
US6053344A (en) * 1998-07-02 2000-04-25 Owens-Illinois Closure Inc. Tamper-indicating closure and method of manufacture
US6253940B1 (en) * 1999-04-28 2001-07-03 Owens-Illinois Closure Inc. Tamper-indicating closure and method of manufacture

Also Published As

Publication number Publication date
EP1472151A1 (en) 2004-11-03
DE60305445T2 (en) 2006-11-30
DE60305445D1 (en) 2006-06-29
MXPA04007591A (en) 2005-07-13
WO2003066461A1 (en) 2003-08-14
ES2263953T3 (en) 2006-12-16
NL1019903C2 (en) 2003-08-07
US20050199573A1 (en) 2005-09-15
ATE327178T1 (en) 2006-06-15
AU2003207139A1 (en) 2003-09-02

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