EP1644257B1 - Procede de fabrication de capsules de bouchage - Google Patents

Procede de fabrication de capsules de bouchage Download PDF

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Publication number
EP1644257B1
EP1644257B1 EP04767511A EP04767511A EP1644257B1 EP 1644257 B1 EP1644257 B1 EP 1644257B1 EP 04767511 A EP04767511 A EP 04767511A EP 04767511 A EP04767511 A EP 04767511A EP 1644257 B1 EP1644257 B1 EP 1644257B1
Authority
EP
European Patent Office
Prior art keywords
skirt
typically
insert
radial
height
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
EP04767511A
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German (de)
English (en)
French (fr)
Other versions
EP1644257A2 (fr
Inventor
Jacques Granger
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.)
Amcor Flexibles Capsules France SAS
Original Assignee
Alcan Packaging Capsules SAS
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Filing date
Publication date
Application filed by Alcan Packaging Capsules SAS filed Critical Alcan Packaging Capsules SAS
Priority to PL04767511T priority Critical patent/PL1644257T3/pl
Publication of EP1644257A2 publication Critical patent/EP1644257A2/fr
Application granted granted Critical
Publication of EP1644257B1 publication Critical patent/EP1644257B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B21D51/50—Making screw caps
    • 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
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • 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
    • B65D41/0485—Threaded or like caps or cap-like covers secured by rotation with means specially adapted for facilitating the operation of opening or closing
    • 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
    • B65D41/0492—Threaded or like caps or cap-like covers secured by rotation formed by several elements connected together
    • 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
    • B65D41/3428—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 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
    • B65D41/32—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
    • B65D41/348—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures
    • 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
    • B65D41/62—Secondary protective cap-like outer covers for closure members
    • 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
    • B65D49/00—Arrangements or devices for preventing refilling of containers
    • B65D49/02—One-way valves
    • B65D49/04—Weighted valves

Definitions

  • the invention relates to the field of screw closure caps which typically include an internal threaded plastic insert and a metal outer shell. These capsules are typically intended for corking bottles containing alcoholic beverages, including wine.
  • Screw closure capsules are also known whose threading is constituted by a deformation of the metallic skirt of the capsule, as described for example in the French patent. 2,387,165 .
  • Capsules are also known whose shell has a skirt which has, at a certain height, a radially expanded part, as illustrated in the international patent application. WO 94/20237 .
  • patent US 1,969,777 discloses a method in which a rubber piece is placed inside a closed metal tube head and said rubber member is depressed to locally deform the wall of said tube head.
  • screw cap capsules of the state of the art do not always have a satisfactory manual gripping level, insofar as the unscrewing of the capsule may require a torque, in particular a first opening torque, such that the fingers may tend to slide on the metal shell, which is generally cylindrical.
  • An object of the invention is constituted by a method making it possible to manufacture industrially at high speed capping caps of particular shape which are therefore more manageable, easier to screw / unscrew than those of the state of the art.
  • Another object of the invention is to obtain capsules whose shape of the shell allows an immediate differentiation compared to commercially available capsules which are typically cylindrical. Moreover, these capsules must meet the requirements of mechanical strength, in particular impact strength.
  • Composite capsules are made by supplying the plastic insens, the metal shells and assembling them.
  • the plastic insert is formed by molding thermoplastic material, typically by injection.
  • Metal shells are typically made by stamping tape or foil, usually aluminum or tin. Thus, in practice, it is known to produce industrially at high speed that cylindrical metal shells.
  • the means of the invention can effectively solve the problems with regard to the capsules themselves. Indeed, the presence of an expanded radial portion on the skirt of said shell allows both to better manually grasp the capsule in particular for its unscrewing, and to differentiate from commercial capsules. Moreover, the invention makes it possible to differentiate without increasing the height of the containers clogged with such capsules. Indeed, the total height of a bottle capsulated can in many cases be a standard or a requirement imposed by one of the many actors in the chain from the producer or conditioner to the consumer. Thus, for example, it is not conceivable that a beverage dispenser is led to change the spacing between its bottle storage shelves because the height of the bottles would be too large.
  • these capsules have a high impact resistance, in particular because the radially expanded portion of the outer skirt has a thickness Ep substantially the same as that of the remainder of the radially unexpanded outer skirt, whereas the expanded zones of the state of the art show thinning of the wall. Indeed, it is advantageous that this be so insofar as this expanded part (43) is exposed to shocks and where it would therefore not be mechanically weaker than the rest of the metal shell (4) . This can be achieved in particular by the method according to the invention described next.
  • the figures 1a , 2a , 3a , 4a , 5 , 7a , 8a , 9a , 10a , 13a , 13b and 14a are axial sections of capsules (1) comprising a shell (4) manufactured according to the invention, said capsules being crimped onto a neck (2), whereas the figures 1b , 2b , 3b , 4b , 6b . 7b , 8b , 9b , 10b and 14b are side views of the corresponding capsules (1).
  • the left part of the figure represents the capsule (1) with an attached seal (50), while on the right side the insert (50) of the left part is replaced by a sealing insert (51) which ensures a temporary solidarity of an inexplicable device (8) on the figures 1a , 4a , 10a , 13a and 13b , and a pouring device (7) on the figures 3a , 5 and 9a .
  • the capsules (1) comprise an attached seal (50).
  • FIGS. 1a to 5 , 13a and 13b are related to capsule methods (1) in which the insert (3) is an insert (3 ') with an inner skirt (31) called “short" of height h1 ⁇ 20 mm, so as to be opposite the threading (20) of the neck (2).
  • the Figures 7a to 10b relate to capsules (1) in which the insert (3) - typically shown on the figure 6a - Is an insert (3 ") with inner skirt (31) called" long "height h1> 20 mm.
  • FIGS. 14a and 14b are relative to capsules (1) in which the insert (3) is an insert (3 "') with so-called" very long "skirt of height h1> 50 mm.
  • said expanded portion (43) can typically form an annular ring, continuous or discontinuous, connecting, at its upper part, typically to said outer head (40), or possibly to said cylindrical portion (42). ), and at its lower part, to said cylindrical portion (42).
  • said expanded portion (43) forms a continuous annular ring of cylindrical symmetry.
  • all or part of said inner skirt (31) of said insert (3) can cooperate with all or part of said typically cylindrical portion (42) of said outer skirt (41), so as to form in particular said connecting means.
  • the insert (3) and said typically cylindrical portion (42) of the shell are of substantially the same diameter D1, so that said insert (3) can be introduced into said shell (4) without excessive play.
  • the invention also comprises the manufacture of capsules (1) in which said expanded portion (43) could be moved away from the outer head (40) by 5 to 15 mm.
  • said expanded portion (43) may form a semi-circular ring that could be facing a portion of the thread (32) of the insert (3), so that this would be without disadvantage for the screwing itself. same - case that has not been illustrated on a figure.
  • said height H2 of said radially expanded portion (43) may be at least 2 mm and may typically range from 3 mm to 15 mm. In many examples illustrated by figures, this height is 4 mm, 4.5 mm, 6 mm.
  • Said diameter D1 of the cylindrical portion (42) can typically range from 15 mm to 60 mm.
  • the ratio D2 / D1 can range from 1.02 to 1.15 and can typically range from 1.05 to 1.10. This ratio is about 1.085 with respect to the hulls (4) of the examples and figures.
  • said typically cylindrical portion (42) and said expanded portion (43) may be connected by at least one intermediate portion of average slope equal to AD / AH, with AD equal to D2-D and ⁇ H equal to the height of said shell (4) on which said diameter varies from D1 to D2, said slope typically ranging from 0.5 to 2 and preferably from 0.8 to 1.5.
  • said radially expanded portion (43) and said typically cylindrical portion (42) and said expanded portion (43) are connected by a radius of curvature R2 ranging from 1.5 mm to ⁇ D / 2.
  • said expanded part (43) can adjoin, at its upper part, said outer head (40), and at its lower part, said cylindrical portion (42) of said outer skirt (41), said outer head (40) and said expanded portion (43) being connected by a radius of curvature R1 ranging from 1.5 mm to 5 mm, as illustrated in FIG. figure 7a .
  • said expanded portion (43) can adjoin, at its top and bottom, said cylindrical portion (42) of said outer skirt (41), said expanded skirt (43) being a spaced apart expanded skirt (43 ') or offset from said outer head (40).
  • said expanded portion may be more or less remote from said outer head (40) and therefore the top of the capsule (1).
  • Said outer skirt (41) may comprise several expanded parts (43, 43 ', 43 "), as illustrated by way of example on the figure 8a (right part of the figure 8a ).
  • said inner head (30) of said insert (3) is facing all or part of said expanded portion (43, 43 '), so that the internal thread (32) of said threaded inner skirt (31) of said insert (3) facing said cylindrical portion (42) of said outer skirt (41).
  • the expanded part (43) is of great height H2.
  • the shell (4) serves as a hoop to the insert, it is preferable, particularly in the case where a thin-walled insert is used, that the part of the insert (3) bearing said thread (32) is in direct contact with said cylindrical portion (42) of substantially the same diameter and thus acting as a hoop to prevent any radial deformation of said thread (32) during screwing or unscrewing under stress.
  • said inner head (30) of said insert (3) may comprise a vault (33) in contact with said sealing means (5) and, above said vault, a recessed spacing means (34), formed typically spaced concentric rings (340) in contact with said outer head (40).
  • a vault 33) in contact with said sealing means (5) and, above said vault, a recessed spacing means (34), formed typically spaced concentric rings (340) in contact with said outer head (40).
  • said expanded portion (43) can be positioned, in axial height, above said external thread (20) of said neck (2), and optionally at above said rim (22) of said neck (2).
  • said inner skirt (31) of said insert (3) may be thick with a groove bottom ranging from 0.1 mm to 0.5 mm. In the case of a "short" skirt insert (3 '), this thickness can range from 0.1 to 0.3 mm. With inserts with longer skirt (3 ") and (3"'), the thickness of the insert can range from 0.25 to 3 mm.
  • said insert (3) can be an insert (3 ') whose inner skirt (31) is called “short", said insert having a height h1 typically ranging from 6 mm to 20 mm, said height h1 corresponding typically to the height of said neck from said rim (22) to the bottom of said external thread (21).
  • the H / h1 ratio can range from 1.1 to 4, and preferably from 2 to 3. This type of insert has been shown on figures 1a , 2a , 3a , 4a , 5 , 13a and 13b .
  • said outer skirt (41) may comprise said tamper-proof means (6), said outer skirt (41) being able to form a crimped zone (60) under said tamper-evident ring (21), as well as said first opening means (7), said outer skirt (41) comprising a weakening line (70) solidarisant by bridges a guarantee strip (71) located above said weakening line and able to form said zone crimped (60).
  • Said insert (3) can also be an insert (3 ") whose inner skirt (31) is called" long ", said insert having a height h2 typically ranging from 20 mm to 50 mm, said height h2 typically corresponding to the height said neck from said rim (22) to the bottom of said tamper evident ring (21) of said neck (2), the H / h2 ratio typically ranging from 0.8 to 1.1. This case has been illustrated on Figures 6a , 7a , 8a , 9a and 10a .
  • said insert (3) can also be an insert (3 "') whose inner skirt (31) is said to be” very long ", said neck comprising a low tamper ring (21'), said insert having a height h3 greater than 50 mm, said height h3 typically corresponding to the height of said neck from said rim (22) to the bottom of said low inviolability ring (21 '), the ratio H / h2 typically ranging from 0.8 to 1 1.
  • said inner skirt (31) may comprise said tamper-evident means (6) and said first opening means (7), said inner skirt (31) comprising at its lower part a guarantee strip (71) connected by a weakening line (70) comprising a plurality of bridges, said guarantee strip (71) cooperating with said tamper-evident ring (21) by means of catch tabs (61) so that said tamper-evident ring (21) axially locks said tabs (61) and said guarantee strip (71) , and thus a first opening of said capsule causes a visible rupture of said bridges of said line of weakness (70).
  • Said guarantee strip (71) may comprise an outer projection (62) forming a flange for said outer skirt, typically a stop edge of width ranging from 0.5 to 5 times the thickness Ep of said outer skirt (41) .
  • Said hooking tongues (61) can be connected to said guarantee strip (71) or possibly to said external projection (62). Each of said hooking tongues (61) can be secured to said guarantee strip (71) or to said projection (62) by a thinned portion (610) of said tongue (61) ensuring its flexibility.
  • said weakening line (70) may be a crenellated line (70 '), so as to avoid undesirable bridging of bridges, in particular during said plugging or capping of said container.
  • said expanded portion (43) may have on all or part of its height H2 a profile typically forming a circle or a regular polygon, typically N sides or sides, with N ranging from 5 to 18, and preferably from 6 to 12 sides.
  • said outer skirt (41) over all or part of its height H, may form a surface of revolution, of constant radius or not depending on the height considered or have a rotational symmetry of 360 ° / N angle, with N ranging from 4 to 80, said outer skirt (41) typically forming a plurality of N notches so as to facilitate manual gripping and rotation of said capsule.
  • the unexpanded portion (42) of said outer skirt (41) may be non-cylindrical.
  • the corresponding insert (3) must have the same profile. It is thus possible to further accentuate the distinctive character of the capsule (1) and to facilitate its manual grip.
  • said assembly means solidarisant in rotation and axially said inner (3) and outer (4) parts may comprise any type of known means, and in particular an anchoring means, mechanical or chemical, typically by gluing said inner (3) and outer (4) parts.
  • said inner skirt (31) of the insert (3) can cooperate with said cylindrical portion (42) facing the shell (4), over all or part of said height h, thanks to a layer of adhesive solidarisant said inner skirt (31) and said cylindrical portion (42).
  • said outer portion or shell (4) may be aluminum, tin, or a multilayer metal-plastic material with stress strain similar to that of aluminum or tin. Said outer portion (4) may be surface-treated aluminum, typically brushed or anodized, to create a "metallic" appearance or color.
  • said inner portion (3) may be a molded insert of thermoplastic material, typically PE, PP, PET, SEBS or PS, optionally comprising one or more mineral fillers, typically talc.
  • said sealing means (5) of said capsule (1) may typically comprise an attached seal (50) or a sealing insert (51), or possibly a circular sealing lip.
  • Said sealing means (5) may comprise said insert (50) of sufficient diameter to cover at least the rim (22) of the neck (2) and a compression means, carried by the inner surface of said insert, to apply sealing said gasket (50) on said neck (2) during said plugging and typically on the rim (22) of said neck (2).
  • said compression means may be constituted by, or may comprise, axial compression means, said axial compression means typically comprising an annular rib or extra thickness (300) formed on the inner wall of said inner head (30). ) or said inner skirt (31), and intended to compress said attached seal (50) in said axial direction (10) on the upper part (220) of said rim (22), typically flat portion or inclined up to 45 ° .
  • said compression means may comprise a radial compression means, the compression of the attached seal (50) against said neck being in a radial direction (11), by said annular tongue (311), said radial direction (11) making with said axial direction (10) an angle of at least 45 °.
  • said radial compression means may comprise an annular extra thickness (300) formed typically at the junction between said inner head (30) and said inner skirt (31), and intended to compress said seal (50) on all or part of the radiated part (220), and / or on the typically vertical part of the rim (22).
  • Said annular oversize (300) may have the shape of a stair step formed at the inner junction of the inner head (30) and the inner skirt (31), so as to compress said gasket (50) radially.
  • said radial compression means may comprise a chamfer (301) of said insert (3) at the inner junction of the inner head (30) and the inner skirt (31), said chamfer having an inclination or curvature typically close to that of the radiated part (220) of the said rim (22) facing each other.
  • the thickness Ej of the gasket typically between 0.5 and 2.5 mm, may be chosen, depending in particular on the radial space Eo between said neck and said capsule, so that said container is sealed by said capsule, the thickness of the locally compressed seal or the distance E between the end of said compression means and said rim then typically being between 0.3.Ej and 0.7.Ej, with Ej.
  • said radial compression means may comprise an annular tongue (311) formed on the inner wall of said inner skirt (31) of the insert (3).
  • said compression means may comprise an axial compression means and a radial compression means, said axial and / or radial compression means being an integral part of said insert (3) or forming an insert.
  • said inner skirt (31) of the insert (3) may comprise a rib or a plurality of holding lugs (310) capable of securing said attached seal (50) to said insert (3).
  • a pouring device (8) and / or a device said "non-refillable" (8 ') can be reversibly secured to said insert (3), or possibly to said sealing means (5, 50, 51), typically by virtue of an inner ring (35) of said insert (3) temporarily cooperating with a peripheral skirt of said pourer (8) and / or said non-refillable device (8 ').
  • the figures 3a , 5 and 9a illustrate the case where a pouring device (8) is secured to the capsule (1), via said sealing means (51), and in particular thanks to a connecting ring (510).
  • the figures 1a , 4a , 10 , 13a and 13b illustrate the case where a "non-refillable" device (8 ') is secured to the capsule (1), via said sealing means (51).
  • the connecting ring (510) makes it possible to secure the devices (8) and (8 ') to the capsule (1), so that when the capsule (1) is screwed to the neck, the devices (8) and (8) ') are forced into the neck and remain fixed to the neck through the fins (81) - these fins (81) have been shown in the figures in their original position, before introduction into the neck, these fins being bent towards the top against the inner wall of the neck when these devices (8) and (8 ') are introduced into the neck (2).
  • said insert (3) may comprise axial latching means, typically in the form of a plurality of flexible annular tongues (302), cooperating with said radially expanded portion (43), so as to fix said insert (3) in said shell (4) in the axial direction, and so as to further increase the impact strength of said expanded portion (43) of said shell (4).
  • annular radial cavity (48) may also be filled with a material (49), typically an adhesive material, so as to simultaneously secure the insert to said shell and obtain a very high impact strength.
  • This adhesive may be constituted or may comprise a homogeneous glue or a two-component glue (polyurethane glue). Whether with a tongue (302), or with an introduction of adhesive material, or with an insert with an outer edge as on the figure 13a in all cases, it is thus possible to obtain excellent shock resistance, with a rating of 5 on the "Charpy sheep test" scale, and to use an alloy of the 8000 series which is less expensive than an alloy of the 3000 series.
  • the manufacturing method according to the invention makes it possible to obtain, as illustrated on the Figures 15b to 16f , 17a, 17b and 18d a radially expanded portion (43) having a non-circular section in a plane perpendicular to said axial direction (10), to facilitate gripping and manual rotation of said capsule (1).
  • a circular section has been represented on the figures 15a and 16a .
  • Said non-circular section can take several forms.
  • other possibilities of non-circular section are illustrated on the Figures 16b to 16f , with for example polygonal sections ( Figures 16b and 16e ), or with an oval section ( figure 18d ).
  • the shell (4) may comprise a cylindrical portion (42 ') of the outer skirt (41) comprising a plurality of deformations (420) of small amplitude, which can form patterns which can also contribute to the manual gripping of the capsule.
  • the deformations (420) are said to be of low amplitude (a '/ b') as opposed to the high amplitude deformation (a / b) relative to said expanded part (43), with "a” and "b” respectively corresponding to ⁇ D (D2-D1), and H2 seen previously.
  • the deformations (420) of small amplitude are typically formed by an elastomer punch in the traditional manner, the amplitude (a '/ b') being small enough for there to be a slight local expansion of the metal without risk of thinning. notable wall and appearance of cracks (44). Typically, a '/ b' ⁇ 0.2. a / b.
  • step c) of this method said local radial expansion is obtained by axial compression of an expandable punch (95) in said blank (4 ') placed in a shape matrix (91, 91') forming a radial cavity Profile (92) similar to that of said expanded portion (43), said expandable punch (95) plating a portion of said outer skirt (41 ') against said inner wall of said radial cavity (92), by said axial compression, typically obtained by axial displacement of a slider (96).
  • said local radial expansion is an expansion progressively extending axially, said expandable punch beginning to exert its action at the lower portion (45) of said blank (4 ') closest to said outer head (40) , then progressively continuing to exert its action by deviating from said outer head (40), so as to have a free flow of said skirt (41 ') in said cavity (92), said free flow being made possible by a blocking progressive of said skirt (41 ') from said outer head (40), the remainder of said skirt (41') not being blocked by said expandable punch (95) against said matrix, so as to progressively form in the axial direction said expanded portion (43) without risk of metal failure.
  • said expandable punch (95) has an axial profile (950) adapted to achieve said progressive expansion by radial compression.
  • said expandable punch may be formed of an elastomeric material capable of deforming under said radial compression, said elastomeric material having a Shore hardness chosen according to the mechanical characteristics of said material, typically metallic, of said blank (4 ') said hardness to be greater than a given value depending on the mechanical characteristics and the thickness of said material forming said skirt (41 '), so that said axial compression develops a radial force of said elastomeric material greater than the local resistance deformation by radial expansion of said skirt (41 ').
  • said blank (4 ') is made of aluminum alloy 8011 according to the nomenclature of the Aluminum Association, of thickness equal to 0.23 mm
  • an elastomer having a Shore A hardness of 80 at 85 is suitable
  • an elastomer of Shore A hardness ranging from 85 to 90 is necessary when the aluminum alloy is a 3105 alloy according to the same nomenclature of 0.23 mm thick, an alloy 3105 having characteristics mechanical superior to those of 8011 alloy.
  • the expandable punch (95) is axially compressed by a slider (96).
  • This slider may be either metallic, or of elastomer of hardness greater than that of the expandable punch (95), or comprise a bottom portion (96 ') made of elastomer or rubber with a Shore A hardness greater than that of said expandable punch (95), such as illustrated on the figure 11d , which allows in particular to have an axial stroke of the slide of less precision.
  • said slider (96) may have a shoulder (960) of width at least equal to said thickness Ep, so that said shoulder may exert an axial compression on the end of said outer skirt (41) when said slider ( 96) is at its bottom dead point, and thus to promote the plating of said expanded portion (43) against the wall of said cavity (92) and thus obtain low radii of curvature R1 and R2.
  • the method according to the invention is not limited to the only capsules, in fact, it can be applied to the transformation of any cylindrical hollow body with a metal skirt, in particular in the sector of the packaging.
  • the process according to the invention was implemented on an industrial production line and was implemented at the usual production rates.
  • the thickness Ep of the expanded portion (43) was found to be 0.23 mm, so that no thinning was observed.
  • the inserts (3) were manufactured by injection molding PE or PP and the inserts (3) were assembled in the shells (4) generally using a commercial adhesive.
  • FIG. 12a All figures - except the Figures 12c and 12d are illustrations or exemplary embodiments of the invention.
  • the threaded insert (3) has an inner head (30) of small thickness in direct contact with said outer head (40) of the metal shell (4), the insert (3) compressing said seal means (5 , 50, 51) against the neck (2) and its rim (22), said sealing means (5) being an insert (50) on the left side of the figure, and a sealing insert (51) on the right side of the figure with a crown (510) able to temporarily secure an inexplicable device (8 ').
  • the figure 1b is a side view of the capsule (1) set with the figure 1a - the neck (2) has not been shown.
  • the inner head (30) comprises an arch (33) whose lower face is in contact with said sealing means (5), namely a seal (50), the upper face of said inner head (30) carrying spacer means (34) forming a plurality of spaced concentric rings (340) forming a recess, the rings (340) serving as support for the outer head (40) of the metal shell (4).
  • the figure 2b is a side view of the capsule (1) of the figure 2a , analogous to the figure 1a .
  • the height of the rings (340) is greater than that of the figure 2a .
  • Said sealing means (5) is an attached seal (50) on the left part of the figure, and a sealing insert (51) on the right side of the figure provided with a crown (510) adapted to join together temporarily a pouring device (8).
  • the figure 3b is a side view of the capsule (1) not set with the figure 3a .
  • Figures 4a and 4b is in part analogous to that of Figures 1a and 1b . They differ in that the insert (3) comprises, as on the figure 2a , a spacer means (34).
  • Said outer head (40) and inner (30) are curved (concave).
  • Said sealing means (5) is an attached seal (50) on the left part of the figure, and a sealing insert (51) on the right side of the figure provided with a crown (510) adapted to join together temporarily a pouring device (8).
  • a sealing insert (51) on the right side of the figure provided with a crown (510) adapted to join together temporarily a pouring device (8).
  • the outer head (40) and the inner head (30) of the insert (3, 3 ') are convex instead of concave.
  • figure 6a represents an insert (3) with an insert (50), comprising an inner skirt (31) called “long” comprising an upper portion (312) carrying said internal thread (32), and a lower portion (313) comprising a portion detachable member (314) carrying a tamper means (6) in the form of a plurality of tabs (61), and a first opening means (7) in the form of a crenellated weakening line (71 ').
  • the figure 6b is a side view of the insert (3) of the figure 6a .
  • the Figure 6c is an enlarged partial view of the top right corner of the figure 6a and represents the position of the seal (50) relative to the annular tongue (311), so as to have a radial compression of the seal.
  • Figures 7a to 10b relate to capsules (1) having an insert (3 ') with a long skirt as illustrated in the Figures 6a to 6d .
  • figure 7a represents a capsule (1) screwed to a BVP 25H corded glass ring, provided with an attached seal (50), the outer skirt (41) of the shell (4) cooperating at its lower end with a bead ( 611) of the detachable portion (314) of the insert (3), the compression of the insert (50) against said neck being made by radial compression in a radial direction (11), with said annular tongue (311).
  • the figure 7b is a side view of the capsule (1) of the figure 7a .
  • figure 8a is similar to that of the figure 7a , the glass ring being a BVP 28H ring with cord, and said expanded skirt (43) being an expanded skirt (43 ') spaced or offset from said outer head (40), in the case of the figure 8a .
  • the figure 8b is a side view of the capsule (1) of the figure 8a similar to figure 7b .
  • Figures 9a and 9b is similar to that of Figures 7a and 7b .
  • the neck forms a glass ring BVP 36EH
  • said sealing means (5) is an attached seal (50) on the left side of the figure, and a sealing insert (51) on the right side of the figure provided with a crown (510) adapted to temporarily secure a pouring device (8).
  • Figures 10a and 10b is similar to that of Figures 7a and 7b .
  • the neck forms a ring of glassware BVP 30H with cord, and, as on the figure 1a , said sealing means (5) being a seal (50) on the left side of the figure, and a sealing insert (51) on the right side of the figure provided with a crown (510) suitable for temporarily secure a non-refillable device (8 ').
  • a slider variant (96) which comprises a lower portion (96 ') - that in contact with the elastomeric punch (95) - formed of elastomer of Shore A hardness greater than the Shore A hardness of the elastomeric punch, so forming a "damper" between the typically metallic slider (96) and the elastomeric punch (95).
  • FIGS 12a and 12b are similar to Figures 11c and 11d , the elastomeric punch (95) having a profile with a sloping wall (950), so as to promote progressive radial compression of the outer skirt (41) from its lower end (45), which does not block a axial displacement or migration (46) of the metal from the wall of the shell blank (4 ') to the interior of the cavity (92).
  • This displacement (46) of the skirt with respect to the upper die (91 ') has been represented by an arrow on the figure 12a .
  • FIGS. 12c and 12d illustrate the situation of the prior art in which the compression of an elastomeric punch (95 ') leads to an isotropic compression (97) which blocks the metal of the shell blank on the periphery of said cavity (92), in the manner of a blank holder, so that the metal portion (47) facing the cavity (92) is expanded to thin the metal and cause it to break and form cracks (44) .
  • the example of figure 13a is analogous to that of the figure 4a however, on the figure 13a , the insert (3, 3 ') is an insert of great thickness, insert which, in addition, fills the cavity formed (48) by the expanded part (43), the insert (3) can be forced into the shell (4), or the shell (4) can be formed on said insert (3).
  • the example of figure 13b is analogous to that of the figure 1 , however, the insert of the figure 13b does not fill the cavity (48), this cavity being filled with a material (49) - typically an adhesive material which may be a hot melt, ensuring the bonding of the insert to the shell.
  • figure 14a is analogous to the figure 7a but the neck (2) comprises a low inviolability ring (21 ') and, accordingly, said insert (3) is an insert (3 "') with a very long skirt 60 mm in height.
  • the figure 14b is a side view of the capsule (1) of the figure 14a .
  • Figures 14c and 14d illustrate other types of insert (3, 3 ', 3 ", 3"') in which said inner head (30) comprises at its periphery a flexible annular tongue (302) adapted to cooperate with the expanded portion (43), so as to secure the insert (3) to the shell (4).
  • the tongue (302) is a simple tongue
  • the tongue (302) has substantially the shape of a "Y" whose branches cooperate with the corners of said expanded portion (43).
  • FIGS 17c and 17d illustrate a capsule (1 ') without a threaded insert, but provided with an attached seal.
  • This capsule (1 ') after being placed on a neck (see figure 17c ) is crimped at the neck, a wheel forming on the skirt of this capsule a thread cooperating with the thread (20) of the neck.
  • FIGS. 18a to 18c illustrate the case of a shell (4) of capsule (1) of which said cylindrical portion (42) is a cylindrical portion (42 ') which has a deformation of small amplitude (a' / b '), deformation capable of both to facilitate manual gripping of the capsule and to form a decorative pattern.
  • the invention has great advantages. Indeed, on the one hand, it discloses a means for obtaining large amplitude deformations (a / b) on the skirt of the capsule (1) by localized radial expansion of the skirt, without these deformed parts being weakened. or have defects such as cracks.
  • This means is an economical process compatible with the rates of industrial production, and which can be easily integrated into a conventional production line, the localized radial expansion step being a complementary step which follows the conventional step of forming the shell blank (4 '). It should be noted that this complementary step uses common means for the skilled person and does not require a significant investment.
  • this method is of very wide application, since it can be used not only to modify any type of closure cap with a metal skirt, but also any hollow body, typically cylindrical - but not necessarily cylindrical, including the skirt is metallic or able to behave like a metal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
EP04767511A 2003-07-02 2004-06-29 Procede de fabrication de capsules de bouchage Expired - Lifetime EP1644257B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04767511T PL1644257T3 (pl) 2003-07-02 2004-06-29 Sposób wytwarzania kapsla do korkowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0308027A FR2856982B1 (fr) 2003-07-02 2003-07-02 Capsules de bouchage ameliorees et procede pour les fabriquer
PCT/FR2004/001667 WO2005012126A2 (fr) 2003-07-02 2004-06-29 Capsules de bouchage ameliorees et procede pour les fabriquer

Publications (2)

Publication Number Publication Date
EP1644257A2 EP1644257A2 (fr) 2006-04-12
EP1644257B1 true EP1644257B1 (fr) 2009-09-23

Family

ID=33522680

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EP04767511A Expired - Lifetime EP1644257B1 (fr) 2003-07-02 2004-06-29 Procede de fabrication de capsules de bouchage

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US (1) US7922019B2 (no)
EP (1) EP1644257B1 (no)
AR (1) AR044982A1 (no)
AT (1) ATE443670T1 (no)
AU (1) AU2004261424B2 (no)
BR (1) BRPI0412108B1 (no)
CA (1) CA2524781C (no)
DE (1) DE602004023295D1 (no)
ES (1) ES2334354T3 (no)
FR (1) FR2856982B1 (no)
MX (1) MXPA05013280A (no)
NO (1) NO337832B1 (no)
NZ (1) NZ544048A (no)
PL (1) PL1644257T3 (no)
WO (1) WO2005012126A2 (no)
ZA (1) ZA200509848B (no)

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US7644902B1 (en) 2003-05-31 2010-01-12 Rexam Medical Packaging Inc. Apparatus for producing a retort thermal processed container with a peelable seal
US7798359B1 (en) 2004-08-17 2010-09-21 Momar Industries LLC Heat-sealed, peelable lidding membrane for retort packaging
US8100277B1 (en) 2005-07-14 2012-01-24 Rexam Closures And Containers Inc. Peelable seal for an opening in a container neck
US7780024B1 (en) 2005-07-14 2010-08-24 Rexam Closures And Containers Inc. Self peel flick-it seal for an opening in a container neck
ATE435167T1 (de) * 2005-11-23 2009-07-15 Alcan Packaging Capsules Verbundverschlusskappe
EA008659B1 (ru) * 2006-08-10 2007-06-29 Дмитрий Иванович ПАХОМОВ Укупорочный колпачок для стандартного венчика горловины
EP1964787B1 (en) 2007-02-27 2010-05-26 Guala Closures S.p.A. Tamper evident closure for containers provided with a threaded neck
EP2055646A1 (en) * 2007-10-30 2009-05-06 Guala Closures S.p.A. Non-refillable closure for threaded mouths
US8251236B1 (en) 2007-11-02 2012-08-28 Berry Plastics Corporation Closure with lifting mechanism
BRPI0910624B1 (pt) * 2008-04-16 2019-07-02 Guala Closures International B.V. Tampa de fechamento inviolável compacta
EA013557B1 (ru) * 2008-09-03 2010-06-30 Дмитрий Иванович ПАХОМОВ Укупорочный колпачок
FR2950035B1 (fr) 2009-09-15 2011-09-02 Raymond A & Cie Coiffe de verrouillage pour recipient a col
FR2950865B1 (fr) 2009-10-01 2011-10-28 Raymond A & Cie Coiffe de verrouillage pour recipient a col avec une capsule a pattes de fixation
CN103298704B (zh) 2010-12-23 2016-08-24 M·I·克尔梅斯 用于关闭件的密封组件
FR2972429B1 (fr) * 2011-03-09 2013-04-05 Tetra Laval Holdings & Finance Dispositif de bouchage d'un col de recipient
US9585811B2 (en) * 2011-10-11 2017-03-07 Datwyler Pharma Packaging Belgium Nv Method for producing a crimp cap, crimp cap and container
FR2986782B1 (fr) 2012-02-13 2014-03-07 Raymond A & Cie Dispositif de verrouillage de bouchon sur recipient a collerette, recipient a collerette obture par bouchon pourvu d'un tel dispositif de verrouillage
GB201205243D0 (en) 2012-03-26 2012-05-09 Kraft Foods R & D Inc Packaging and method of opening
US10472134B1 (en) * 2013-01-07 2019-11-12 Celebrate Everywhere, LLC Container cap securing and venting
GB2511559B (en) 2013-03-07 2018-11-14 Mondelez Uk R&D Ltd Improved Packaging and Method of Forming Packaging
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EP2821350A1 (en) * 2013-07-05 2015-01-07 Cia. de Tapones Irrellenables, S.A. Closure device for bottles with evidence of first opening
EP3655342B1 (en) * 2017-08-04 2022-03-09 GCL International S.A.R.L. Closure with a fitment for a container neck
US20220324010A1 (en) * 2019-05-09 2022-10-13 Constellium Rolled Products Singen Gmbh & Co.Kg Method for manufacturing long metal stopper caps comprising a skirt having a constant thickness
FR3095769B1 (fr) * 2019-05-09 2021-06-11 Constellium Rolled Products Singen Gmbh & Co Kg Procédé de fabrication de capsules longues de bouchage métalliques comprenant une jupe ayant une épaisseur constante
FR3113896B1 (fr) * 2020-09-04 2022-08-19 Verallia Packaging Contenant en verre creux à profil de buvant spécifique

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Also Published As

Publication number Publication date
NO337832B1 (no) 2016-06-27
ATE443670T1 (de) 2009-10-15
AR044982A1 (es) 2005-10-12
DE602004023295D1 (de) 2009-11-05
MXPA05013280A (es) 2006-03-09
US7922019B2 (en) 2011-04-12
FR2856982A1 (fr) 2005-01-07
BRPI0412108B1 (pt) 2018-05-08
WO2005012126A3 (fr) 2005-06-09
PL1644257T3 (pl) 2010-02-26
US20070138125A1 (en) 2007-06-21
AU2004261424A1 (en) 2005-02-10
ES2334354T3 (es) 2010-03-09
NZ544048A (en) 2010-01-29
EP1644257A2 (fr) 2006-04-12
AU2004261424B2 (en) 2010-01-21
BRPI0412108A (pt) 2006-08-15
FR2856982B1 (fr) 2006-04-28
NO20056244L (no) 2006-02-02
CA2524781C (fr) 2012-05-22
WO2005012126A2 (fr) 2005-02-10
ZA200509848B (en) 2007-03-28
CA2524781A1 (fr) 2005-02-10

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