EP2000416A1 - Schnappstöpsel und sein Herstellungsverfahren - Google Patents

Schnappstöpsel und sein Herstellungsverfahren Download PDF

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Publication number
EP2000416A1
EP2000416A1 EP08290526A EP08290526A EP2000416A1 EP 2000416 A1 EP2000416 A1 EP 2000416A1 EP 08290526 A EP08290526 A EP 08290526A EP 08290526 A EP08290526 A EP 08290526A EP 2000416 A1 EP2000416 A1 EP 2000416A1
Authority
EP
European Patent Office
Prior art keywords
bottom wall
skirt
flange
proximal portion
outer skirt
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Withdrawn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
EP08290526A
Other languages
English (en)
French (fr)
Inventor
Philippe Nusbaum
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.)
Bericap SARL
Original Assignee
Bericap SARL
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 Bericap SARL filed Critical Bericap SARL
Publication of EP2000416A1 publication Critical patent/EP2000416A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • 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
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/485—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means

Definitions

  • the invention relates to a flat drink cap to be fixed by hooking on a container neck, in particular on a neck of a flat beverage bottle, and to a method of manufacturing such a cap.
  • Container caps provided with a bottom and a threaded outer skirt which is screwed onto a complementary thread of the neck of the container are well known in the state of the art. It can be seen that this type of fastening by screwing imposes a large height of the collar and the skirt of the plug to accommodate the threads, resulting in a large footprint in height. In addition, the threads require a large amount of material.
  • a plastic capsule for capping a glass container having a neck provided with an upper flange and a lower flange.
  • the cap has a flat bottom, and an outer skirt having an upper portion secured to the bottom and a lower tamper ring to remain in place on the neck of the container, trapped under the lower flange.
  • the ring is connected to the skirt by four points of welding, a hinge and two legs welded to the circumference of the skirt and the ring and serving as inviolability witnesses.
  • the sealing of the capsule is provided by an inner skirt provided with a bead protruding radially towards the outer skirt and defining with the outer skirt an annular groove in which is inserted the rim of the neck of the container.
  • the upper element of the outer skirt has a protuberance to ensure a snap under the collar top collar.
  • This capsule is of complex structure, and its manufacture requires many operations, including welding legs for tamper evidence. It is therefore not suitable for high speed manufacturing and low cost. In addition, seeds can be introduced into the gap between the soldering points, so that the storage of the containers can be problematic.
  • the neck of the bottle being made of glass, the attachment flange necessarily has rounded shapes which make it difficult to grip and impose a large contact surface between the hooking protuberance and the flange, and therefore an important skirt height. level, and a large footprint.
  • the invention therefore aims to overcome the drawbacks of the state of the art, so as to provide a congestion plug and reduced weight, having good aseptic performance and simple to produce.
  • the meshing teeth have no function once the cap is mounted on the container, but allow, during manufacture, to drive the cap in rotation to present it in front of a rotating blade which allows incise the skirt at the junction between the proximal portion and the tamper-evident ring. Because of their contiguous edges, the incisions practiced constitute an effective barrier against germs or other pollutants. Furthermore, the absence of threading allows a reduction in the height and thickness of the skirt with respect to a threaded plug.
  • the cap further comprises an inner skirt integral with the bottom wall and forming an elastic inner sealing lip delimiting with the inner face of the proximal portion of the outer skirt and the bottom wall a annular groove partially closed by the inner hooking protuberance.
  • the annular groove thus defined makes it possible to receive the edge of the neck of the receptacle, the inner skirt contributing both to the positioning of the stopper during assembly and to the sealing of the stopper.
  • the proximal portion of the skirt may further comprise an additional sealing lip located between the inner hooking protrusion and the tamper-evident ring, the additional lip projecting radially inwards and axially towards the tamper-evident ring. This additional lip provides a barrier against the intrusion of germs.
  • the cap may further comprise a gripping tab projecting radially outwardly from the proximal portion of the skirt or the bottom wall.
  • the incisions are through, which allows to fully control the force required to tear the bridges during the first opening.
  • the cap has an axial symmetry, which simplifies its manufacture and distribution on high-speed bottling lines (between 40000 and 80000 bottles per hour).
  • This set offers, compared to devices with threaded neck and plug, a significant material gain, with high aseptic performances obtained thanks to the incisions with contiguous edges.
  • the ring remains attached to the neck so that there is no waste to be rejected in nature by the consumer.
  • the cap also comprises an inner skirt integral with the bottom wall and forming an elastic inner sealing lip delimiting with the inner face of the proximal portion of the outer skirt and the bottom wall an annular groove. partially closed by the inner hooking protuberance and in which is housed the rim. This skirt seals by pressing on a cylindrical wall of the neck of the bottle.
  • the proximal portion of the skirt may further comprise an additional sealing lip located between the inner hooking protuberance and the tamper-evident ring, the additional lip projecting radially inwardly and axially towards the tamper-evident ring and bearing against a frustoconical face of the retaining flange.
  • the neck may comprise an additional flange, the retaining collar being located between the attachment flange and the additional flange, the tamper evident ring being located between the retaining flange and the additional flange.
  • the tamper ring falls on the additional collar.
  • the resulting set is easier to open and close for people with arthritis.
  • This method is particularly simple to implement and allows to obtain a precise cut of the incisions.
  • the one-piece plug of molded plastic material 1, mounted on a container neck 2, comprises a bottom 3 consisting of a substantially discoidal wall, a substantially cylindrical outer skirt 4 and an inner sealing skirt 5, the two skirts 4 and 5 defining a common axis of revolution ZZ.
  • the stopper 1 is more particularly adapted to a threadless container neck as shown in the figures, which has on its outer face and from its base to its upper flange 21: a lower flange 22, an intermediate flange 23 for retaining and a upper flange 24 hanging part of the upper flange 21, the three collar 22, 23 and 24 protruding radially outwardly.
  • the neck further has a cylindrical inner face 25 defining the opening of the container.
  • the outer skirt 4 of the cap 1 has a proximal portion 41 directly integral with the bottom, and a distal portion 42 constituting a tamper-evident ring.
  • the proximal portion 41 has an inner face 410 provided with one or more hook protuberances 411 projecting radially inward, and more specifically in the exemplary embodiment, a single annular protuberance 411 or an annular protuberance interrupted in several parts. sectors.
  • the distal portion 42 of the skirt located in the extension of the proximal portion 41, in continuity therewith, also has one or more protuberances 420 projecting radially inwardly.
  • Incisions 43 are made through the wall of the skirt 4.
  • Each incision 43 has contiguous edges, which is due to the fact that, as will be seen later, the incisions 43 are obtained by a cut made in the wall of the skirt without removing material.
  • the incisions 43 are made all around the skirt, and separated from each other by breakable bridges 44.
  • the inner skirt 5 is of variable thickness and slightly flared shape of its base secured to the bottom 3 towards its free end. More specifically, the thickness of the inner skirt 5 is relatively low at its base, which gives it a certain elasticity, while it is greater near its free end, forming a sealing bead 51 protruding therefrom radially outward.
  • An annular space 52 is delimited between the inner skirt 5, the proximal portion 41 of the outer skirt and the bottom 3 of the cap, forming a groove 52 partially closed by the protuberance 411.
  • the disc wall 3 of the bottom is extended radially outwardly beyond the outer skirt 4 by a flange 6 provided with teeth 61 regularly spaced over the entire periphery of the cap.
  • the teeth are separated from each other by notches 62 which, in the embodiment, are extended by splines 412 on the outer face of the skirt.
  • toothed flange 6 The function of the toothed flange 6 will appear in the following description of a method for manufacturing the plug of Figures 1 to 3 .
  • a plug is formed by molding a plastic material, for example by injection, in a mold for producing the bottom wall 3, the toothed flange 6 and the inner skirt 5 in their final form, as well as the outer skirt 4 secured to the bottom wall 3 in an unfinished form, because devoid of incisions and breakable bridges.
  • the plug is placed on a rotary mandrel 7 which comes to bear the periphery of the plug on a notched guide 8 forming a rack 81 and provided with a cutting tool 82 consisting of a plurality of blade sections 820 aligned and separated by each other by notches 821.
  • the rack 81 meshes with the toothed rim 6 of the skirt.
  • the mandrel 7 is driven in translation parallel to the rack so as to roll the plug 1 on the rack, and the sections of the blade 820 penetrate into the wall of the skirt 4 by making the incisions 43, the notches 821 allowing to preserve uncut portions constituting the bridges 44.
  • the serrated edge ensures that the incision takes place without slipping. Thanks to this cutting process, the resulting incisions 43, which pass right through the skirt 4, have contiguous edges which constitute an effective barrier against germs.
  • the cap is mounted on the neck of the container in force.
  • the upper rim 21 of the neck of the container is housed in the groove 52 and the hooking protrusion 411 after being deformed to ensure the passage of the upper collar 24, engages with the upper flange 24 to ensure the hooking cap on the neck of the container.
  • the inner skirt 5, by its flexibility, is deformed and is pressed, at the bead 51, on the cylindrical inner face of the neck of the container, ensuring at this level the tightness of the closure.
  • the container is opened by pulling on the stopper 1 or by pressing the thumb from below the toothed flange 6 upwards.
  • the protuberances 420 of the tamperproof ring 42 are locked in abutment against the intermediate flange 23, which causes tearing of the breakable bridges 44 during the upward movement of the upper part of the plug.
  • the ring 42 then falls on the lower flange 22, away from its initial position. If the cap 1 is reapposed on the container, the ring 42 disengaged from the proximal portion 41 of the skirt remains at a distance therefrom, thus marking the opening.
  • the closing and opening of the container is therefore carried out without rotation of the cap about its axis Z, therefore without screwing.
  • the contact obtained between the lip constituted by the inner skirt 5 and the cylindrical inner face 25 of the neck provides the main seal.
  • the interference between the attachment protuberance 411 and the upper flange 24 optionally provides a barrier to secondary and optional germs.
  • the proximal portion 41 of the outer skirt 4 is provided, on its inner face 410, with a resilient lip 412 projecting radially inwards and axially towards the tamper-evident ring 42 so as to bear against a frustoconical face 230 of the intermediate flange 23 to constitute an additional barrier against the intrusion of germs or pollutants.
  • the cap has no threading, but can optionally be mounted on a threaded neck, provided that the neck is provided with an upper collar and an intermediate collar and that the thread does not interfere with the inner face 410 without threading the outer skirt 4.
  • a rotary cutting tool provided with a ring gear and a series of blades placed on the periphery of a cutting disc may be preferred.
  • the ring gear will ensure by meshing with the teeth of meshing the cap rotation of the latter around the axis, while the blades will proceed to the cutting of the incisions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Closures For Containers (AREA)
EP08290526A 2007-06-08 2008-06-09 Schnappstöpsel und sein Herstellungsverfahren Withdrawn EP2000416A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0755618A FR2917070A1 (fr) 2007-06-08 2007-06-08 Bouchon encliquetable et son procede de fabrication

Publications (1)

Publication Number Publication Date
EP2000416A1 true EP2000416A1 (de) 2008-12-10

Family

ID=38870343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08290526A Withdrawn EP2000416A1 (de) 2007-06-08 2008-06-09 Schnappstöpsel und sein Herstellungsverfahren

Country Status (2)

Country Link
EP (1) EP2000416A1 (de)
FR (1) FR2917070A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112591300A (zh) * 2020-12-01 2021-04-02 上海宇田机电设备有限公司 一种环保型瓶盖切环刀具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1476330A (fr) 1965-06-28 1967-04-07 Calumet & Hecla Procédé et installation pour mettre sous pression des tronçons de tubes
GB1406911A (en) * 1972-01-08 1975-09-17 Cocchi E Bottle fitted with a stopper
EP0521633A1 (de) * 1991-07-05 1993-01-07 Eugene Edward Davis Behälter mit Originalitätsverschluss
WO1995009113A2 (en) * 1993-09-27 1995-04-06 Resilux Preform with closure
US6073810A (en) * 1996-02-15 2000-06-13 International Plastics And Equipment Corporation Tamper-evident closure
US6826994B1 (en) * 2002-12-20 2004-12-07 Chi-Ti Liao Breaking-line cutting machine for the twist-off bottle cap

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416474A (en) * 1965-12-09 1968-12-17 Bouchage Mecanique Method and apparatus for forming a breakable connection between two portions of a closure cap
FR2139744B2 (de) * 1971-06-03 1976-10-29
US5488888A (en) * 1993-04-19 1996-02-06 Owens-Illinois Closure Inc. Method of forming bridges in tamper indicating closures
ES2088806T3 (es) * 1993-07-12 1996-09-16 Nestle Sa Cierre para recipiente con aro de seguridad.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1476330A (fr) 1965-06-28 1967-04-07 Calumet & Hecla Procédé et installation pour mettre sous pression des tronçons de tubes
GB1406911A (en) * 1972-01-08 1975-09-17 Cocchi E Bottle fitted with a stopper
EP0521633A1 (de) * 1991-07-05 1993-01-07 Eugene Edward Davis Behälter mit Originalitätsverschluss
WO1995009113A2 (en) * 1993-09-27 1995-04-06 Resilux Preform with closure
US6073810A (en) * 1996-02-15 2000-06-13 International Plastics And Equipment Corporation Tamper-evident closure
US6826994B1 (en) * 2002-12-20 2004-12-07 Chi-Ti Liao Breaking-line cutting machine for the twist-off bottle cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112591300A (zh) * 2020-12-01 2021-04-02 上海宇田机电设备有限公司 一种环保型瓶盖切环刀具

Also Published As

Publication number Publication date
FR2917070A1 (fr) 2008-12-12

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