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
  • B65D41/348—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
  • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
  • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
  • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
  • B65D1/023—Neck construction
  • B65D1/0246—Closure retaining means, e.g. beads, screw-threads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
  • B67B3/00—Closing bottles, jars or similar containers by applying caps
  • B67B3/02—Closing bottles, jars or similar containers by applying caps by applying flanged caps, e.g. crown caps, and securing by deformation of flanges
  • B67B3/10—Capping heads for securing caps
  • B67B3/18—Capping heads for securing caps characterised by being rotatable, e.g. for forming screw threads in situ
• • 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
  • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
  • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
  • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
  • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
  • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
  • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
  • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges

Definitions

• the present invention relates to metal containers comprising a threaded neck adapted to receive a closure member of the screw cap type.
• Some containers have a threaded neck which allows their hermetic closure by a screw cap (or screw cap).
• Such a screw cap is conventionally formed of a cap consisting of a closure pellet extended by a cylindrical skirt, this skirt ending in a ring serving as an opening control.
• the threaded neck of the container conventionally comprises:
• a counter-ring arranged under the thread and adapted to cooperate with the ring of the screw cap.
• Glass bottles are particularly suitable for such screw caps: they allow the use of standard metal caps which are mounted by means of crimping machines with single head molding / threading.
• the current metal containers can also be equipped with metal screw caps (as described for example in the document US-2012/0269602); but their structure requires the use of specific capsules that require their assembly by complex crimping machines (called “double head molding / threading").
• the present invention thus relates to a metal container whose neck has a specific thread which has the advantage of being able to receive standard metal screw caps and can be implemented by means of a crimping machine with single head molding / threading .
• the metal container according to the invention comprises a neck defining a longitudinal axis, which neck has a wall of constant thickness, or at least approximately constant, which is terminated by a free border defining an orifice and in which are formed at minus two moldings: a first molding forming at least one net, and
• a second convex molding forming a counter-ring, formed between said net and a neck base.
• This counter-ring has a lateral face extended by a lower sidewall and an upper sidewall, which lower side is defined by a rounded outer edge and a rounded inner edge, respectively connected to said side face and said neck base.
• said net comprises:
• a1 a radius of section at the apex of between 0.85 and 1.2 mm, preferably of 1 mm +/- 0.05 mm, and
• the lower flank of the counter ring diverging with respect to the upper flank in the direction of the longitudinal axis, defines an angle of between 20 ° and 30 ° (preferably between 22 ° and 30 °) with respect to a plane perpendicular to the longitudinal axis,
• the outer edge of the lower flank of the counter ring has a radius of section of between 0.7 and 0.9 mm, preferably 0.8 mm +/- 0.05 mm, and
• the inner edge of the lower flank of the counter ring is provided at a distance of between 13 and 15 mm, preferably 14.3 mm +/- 0.3 mm, relative to said free edge of the neck.
• Such a metal container has the advantage of being able to receive a standard screw cap commercially, including a screw cap usually adapted to be reported on a thread of a glass bottle according to the MCA2 standard (see “Packaging” - Tome 5 - Afnor) or XP H35-107 (Afnor).
• the corresponding neck is also adapted to ensure sealing and, where appropriate, to allow deformation of the metal without altering the interior varnishes.
• Such a metal container also has the advantage of allowing the implementation of standard crimping machines with single head molding / threading, for mounting the screw cap on its threaded neck.
• the net has a pitch of between 3 and 3.3 mm, and / or a number of turns between 1 and
• the thread tip diameter is between 27.2 and 28.5 mm, the thread bottom diameter is between 25.5 and 26.5 mm, and the inner edge diameter of the lower flank of the counter is -bague is between 24 and 25.4 mm;
• the free edge of the neck is in the form of a hem whose first outer diameter is between 24.5 and 25.5 mm and, on the other hand, the inside diameter is between 20 , 5 and 21, 5 mm;
• the thread has a helix angle of between 1.5 ° and 2.5 °;
• the neck is equipped with a closure element of the screw cap type comprising - a cap provided with a molding forming a thread which is complementary to the thread formed on said neck and - a ring cooperating with the lower flank of the against -bague to form an opening witness.
• the present invention further relates to a method for assembling a screw-cap type closure member with a metal container, which method comprises:
• FIG. 1 is a section of the neck of a metal container according to the invention, with an enlarged and partial view of this neck;
• Figures 1 to 3 partially show a metal container 1 according to the invention, in this case its threaded neck.
• the metallic container 1 advantageously consists of a container capable of storing liquids, in particular liquid foodstuffs (water, milk, wine, beer, oil, etc.) and preferably carbonated drinks capable of releasing a gas (in particular of the dioxide of carbon).
• liquid foodstuffs water, milk, wine, beer, oil, etc.
• carbonated drinks capable of releasing a gas (in particular of the dioxide of carbon).
• This container 1 is made of a metallic material, advantageously aluminum.
• Such a metal container 1 has a generally conventional general form (for example of the bottle type), that is to say that it comprises a body (not shown) forming a reservoir which tightens at its top and ends with the neck 2 (shown here in Figures 1 to 3).
• the inner surface of this container 1 (including its neck 2) is coated with an inner protective layer (not shown) which is made in a product resistant to the chemical action of the product to be packaged.
• This protective layer advantageously consists of a layer of varnish, the composition and thickness of which are chosen by the skilled person depending on the product to be packaged.
• the neck 2 of the container 1 is in the form of a cylindrical tubular portion which defines a longitudinal axis 2 '.
• the neck 2 is formed by a metal wall 3 which is of a constant thickness, or at least approximately constant.
• This wall 3 is for example less than 1 mm.
• the neck 2 comprises three successive parts, distributed over the length of the longitudinal axis 2 ', namely:
• a frustoconical upper portion 21 converging towards the longitudinal axis 2 'on the side of a free edge 4 delimiting an orifice 5 for the inlet and / or the outlet of the conditioned liquid,
• a molded intermediate portion 22 provided with moldings intended to cooperate with a closure element of the screw-cap type (or screw cap) which will be described hereinafter with reference to FIGS. 2 and 3, and
• a base 23 here of generally cylindrical shape (advantageously of constant diameter).
• the free edge 4 of the frustoconical upper portion 21 is here formed by a peripheral hem 41 wound outwardly with respect to the orifice 5.
• the interposed molded part 22 of the neck 2 here comprises two moldings:
• a first convex molding 7 having the appearance of a helical rib to form a thread
• a second convex molding 8 having an appearance of an annular rib intended to form a counter-ring.
• these two moldings 7, 8 have particular characteristics that allow the mounting of a standard screw cap of the trade, this, moreover, by means of a standard crimping machine with single head molding / threading .
• the dimensional parameters of the moldings 7, 8 are advantageously measured from the outer surface of the neck 2.
• Net 7, described below in connection with FIG. 1, consists of:
• a top 74 corresponding to an outer line where the two sides 71, 72 of the thread 7 meet.
• the bottom 73 and the top 74 of the net 7 are rounded here, with a curved section, preferably in an arc.
• this thread 7 is defined by a combination of particular dimensional characteristics.
• top 74 and the bottom 73 of the net 7 have the following dimensions:
• the radius of section RI at the top 74 is between 0.85 and 1.2 mm; it is preferably 1 mm ⁇ 0.05 mm, and
• the section radius R2 at the bottom 73 is between 0.5 and 0.7 mm; it is preferably 0.6 mm ⁇ 0.05 mm.
• the diameter D1 of crown 74 of thread 7 is advantageously between 27.2 and 28.5 mm.
• the diameter D2 of the bottom 73 of the thread 7 is between 25.5 and 26.5 mm.
• the thread 7 is further defined by a particular angle of helix B, corresponding to the inclination of the thread 7 with respect to a plane perpendicular to the longitudinal axis 2 '.
• this helix angle B of the thread 7 is advantageously between 1.5 ° and 2.5 °, preferably between 2 ° and 2.5 °.
• This net 7 still advantageously has:
• Counter-ring 8 described below in relation to FIG. 1, consists of a lateral face 81 extended by two flanks, the lower one 82 (opposite the free edge 4) and the other upper 83 (on the side of the free edge 4).
• the lateral face 81 is here of frustoconical general shape, converging towards the longitudinal axis 2 'on the side of the free edge 4 of the neck 2.
• the flanks 82 and 83 of this counter-ring 8 are here of a generally frustoconical shape, diverging with respect to each other in the direction of the longitudinal axis 2 '.
• the lower flank 82 of the counter-ring 8 is delimited by a rounded outer edge 821 and a rounded inner edge 822 respectively connected to the lateral face 81 of the counter-ring 8 and to the base 23 of the neck 2 .
• the counter-ring 8 is defined by a combination of particular dimensional characteristics.
• the lower flank 82 of the counter-ring 8 defines an angle J between 20 ° and 30 ° (preferably between 22 ° and 30 °) with respect to [tan _ 2 perpendicular to the longitudinal axis 2 'of the neck 2.
• This lower flank 82 is upward, from the rounded inner edge 822 to the rounded outer edge 821, on the side of the free edge 4 of the neck 2.
• the outer edge 821 of the lower flank 82 has a radius of section R3 of between 0.7 and 0.9 mm; this radius R3 is preferably 0.8 mm +/- 0.05 mm.
• the inner edge 822 of the lower flank 82 is formed at a distance D3 of between 13 and 15 mm with respect to the free edge 4 of the neck 2; this distance D3 is preferably 14.3 mm +/- 0.3 mm.
• This inner edge 822 of the lower blank 82 further defines a diameter D4 (corresponding to the diameter of the base 23 of the neck 2) advantageously between 24 and 25.4 mm.
• the outer edge 821 of this lower flank 82 defines a diameter D5 advantageously between 27.5 and 28.5 mm.
• the hem of the free edge 4 of the neck 2 has the following dimensions:
• the moldings 7 and 8 of the neck 2 can be made by means of a standard tool which is modified on the profile part of the active tools (wheels adapted by their shapes and their radii) in order to obtain results. compliant in terms of sealing, crimping, opening torque of the screw cap, while being compatible with the method and the integrity of the interior varnishes.
• a preferably screw-cap closure member 15, advantageously standard, is attached to the neck 2 of this container 1 as illustrated in FIGS. 2 and 3.
• Such a screw cap 15 is advantageously in accordance with the MCA2 standard (see “Packaging” - Volume 5 - Afnor) or the standard XP H35-107 (Afnor).
• This screw cap 15 is composed, in a conventional manner, of two elements:
• a cap 16 intended to ensure the closure of this container 1 and to cover the thread 7 of the neck 2, and
• a degradable ring 17 intended to hold the cap 16 before the first opening and to serve as an opening control.
• the cap 16 is composed in particular of:
• a shutter pad 161 of generally circular shape, intended to cover the free edge 4 of the neck 2 and to close the orifice 5 of the neck 2, and
• this sealing pellet 161 is provided with a peripheral annular seal 163 which is intended to cover the free edge 4 of the neck 2 to ensure sealing.
• the skirt 162 consists of a tubular portion which is originally devoid of a net ( Figure 2).
• the ring 17 consists of an annular lower strip, extending the skirt 162, on the opposite side to the sealing pellet 161.
• This ring 17 may consist of one or more sections, secured together by breaking initiation means (also called line of least resistance).
• breaking initiation means 18 are constituted for example by a set of bridges (or “bridges") regularly distributed over the circumference of the skirt 162 and the ring 17 of this screw cap 15.
• the container 1 according to the invention is filled with the liquid of interest through its opening 5.
• the screw cap 15, the skirt 162 of the cap 16 is unmolded, is suitably fitted on the neck 2 of the container 1 ( Figure 2).
• the screw cap 15 is arranged so that: the cap 16 covers the orifice 5, the thread 7 of the neck 2 and an upper part of the counter-ring 8, and
• the ring 17 covers a lower portion of the counter-ring 8 of the neck 2.
• the screw cap 15 is then locked on the neck 2 of the container 1, by a standard method of molding / threading which is encountered especially for glass bottles.
• the screw cap 15 is molded / threaded directly on the neck 2 of the container 1, preferably by a shaping tool which gives it its shape by pressure in the direction of the longitudinal axis 2 '.
• the skirt 162 of the cap 16 is molded / threaded to form a net 164 whose shape is complementary to the thread 7 formed on the neck 2, and
• the lower edge of the ring 17 is bent so as to cover the lower flank 82 of the counter-ring 8 of the neck 2.
• This locking operation is advantageously carried out by means of a crimping machine with a single molding / threading head (unlike the current neck of a metal bottle requiring a double head machine operating in two successive molding sequences).
• the neck 2 can equip any metal container other than a metal bottle.
• such a metal container has the interest of (i) being able to receive a standard commercial screw cap and (ii) allowing the implementation of standard single-head crimping machines. molding / threading, for locking the screw cap on its threaded neck.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Ceramic Engineering (AREA)
• Closures For Containers (AREA)
• Containers Having Bodies Formed In One Piece (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=51225664

Family Applications (1)

Country Status (15)

Families Citing this family (14)

Family Cites Families (30)

• 2014
  • 2014-03-26 FR FR1452568A patent/FR3019148B1/fr not_active Expired - Fee Related
• 2015
  • 2015-03-25 MX MX2016011856A patent/MX2016011856A/es unknown
  • 2015-03-25 WO PCT/FR2015/050763 patent/WO2015145074A1/fr active Application Filing
  • 2015-03-25 PL PL15725702T patent/PL3122641T3/pl unknown
  • 2015-03-25 BR BR112016021941-4A patent/BR112016021941B1/pt active IP Right Grant
  • 2015-03-25 JP JP2016558587A patent/JP2017514756A/ja active Pending
  • 2015-03-25 UA UAA201609799A patent/UA118977C2/uk unknown
  • 2015-03-25 EA EA201691923A patent/EA031034B1/ru not_active IP Right Cessation
  • 2015-03-25 HU HUE15725702A patent/HUE037513T2/hu unknown
  • 2015-03-25 AU AU2015238077A patent/AU2015238077A1/en not_active Abandoned
  • 2015-03-25 ES ES15725702.3T patent/ES2671606T3/es active Active
  • 2015-03-25 CN CN201580016102.5A patent/CN106458378B/zh active Active
  • 2015-03-25 EP EP15725702.3A patent/EP3122641B1/de active Active
  • 2015-03-25 KR KR1020167026336A patent/KR20160138051A/ko not_active Application Discontinuation
  • 2015-03-25 US US15/129,004 patent/US10518940B2/en active Active

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