EP4247724B1 - Bouchon de fermeture et col de récipient pour empêcher une bande d'inviolabilité de se détacher - Google Patents

Bouchon de fermeture et col de récipient pour empêcher une bande d'inviolabilité de se détacher

Info

Publication number
EP4247724B1
EP4247724B1 EP21815403.7A EP21815403A EP4247724B1 EP 4247724 B1 EP4247724 B1 EP 4247724B1 EP 21815403 A EP21815403 A EP 21815403A EP 4247724 B1 EP4247724 B1 EP 4247724B1
Authority
EP
European Patent Office
Prior art keywords
container
closure cap
cap
container neck
guarantee band
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.)
Active
Application number
EP21815403.7A
Other languages
German (de)
English (en)
Other versions
EP4247724A1 (fr
EP4247724C0 (fr
Inventor
Günter Krautkrämer
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 Holding GmbH
Original Assignee
Bericap Holding GmbH
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 Holding GmbH filed Critical Bericap Holding GmbH
Publication of EP4247724A1 publication Critical patent/EP4247724A1/fr
Application granted granted Critical
Publication of EP4247724B1 publication Critical patent/EP4247724B1/fr
Publication of EP4247724C0 publication Critical patent/EP4247724C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3404—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element
    • B65D41/3409—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element 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
    • B65D1/00—Rigid or semi-rigid 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 or 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure

Definitions

  • the present invention relates to a closure cap comprising a lid section and a cap shell, wherein the cap shell has an internal thread and defines a closure axis, such that the closure cap can be screwed onto an external thread of a container neck, wherein a circumferential tamper-evident band is arranged on an edge of the cap shell facing away from the lid section, the band being connected to the cap shell via several tearable bridges, wherein at least one locking element is arranged on the inside of the tamper-evident band, the locking element extending inwards from the tamper-evident band, the locking element having a first stop surface with a surface normal arranged at least partially tangentially to the cap shell, such that the first stop surface can be brought into engagement with a first stop surface of the container neck in an assembled state of the closure cap with a container having the container neck, wherein the engagement of the two first stop surfaces exerts a holding torque on the tamper-evident band acting against an opening direction of the closure
  • the present disclosure further describes a container with a container neck, wherein the container neck defines a container neck axis and has a pouring opening and an external thread for receiving a closure cap with an internal thread, wherein at least one detent element is arranged on the container neck on a side of the external thread facing away from the pouring opening, wherein the detent element extends outwards from the container neck, wherein the detent element has a first stop surface with a surface normal arranged at least partially tangentially to the container neck, such that the first stop surface can be brought into engagement with a first stop surface of the closure cap in a composite state of the container with a closure cap, wherein, through the engagement of the two first stop surfaces, a holding torque acting against an opening direction of the closure cap is exerted on the first stop surface of the closure cap when the closure cap is rotated in the opening direction.
  • the present invention further relates to a combination of a cap and a container, wherein the cap has a lid section and a cap body with an internal thread, and the container has a container neck with an external thread, such that the cap can be screwed onto the external thread of the container neck, wherein the cap body defines a closure axis and the container neck defines a container axis, wherein the closure axis and the container neck axis are coincident in the assembled state of the cap and container, wherein a circumferential tamper-evident band is arranged on an edge of the cap body facing away from the lid section, the band being connected to the cap body via several tearable bridges, wherein at least one locking element is arranged on the inside of the tamper-evident band, wherein at least one further locking element is arranged on the container neck on a side of the external thread facing away from the pouring opening, wherein the locking element of the cap and the locking element of the container neck are designed and arranged such that, in an assembled state of
  • a container comprising a container body; a head section provided on the container body with a filling and dispensing opening, on the outside of which a first screw connection section is provided; and a closure cap which is provided with a second screw connection section for screwing onto the first screw connection section of the head section and a tamper-evident band adjoining the second screw connection section on the side facing the container body.
  • the container further comprises a safety device in which, in one embodiment, the head section of the container body is provided with a first engagement section that engages with a second engagement section on the tamper-evident band of the closure cap.
  • top etc. always refers to a position or direction in the axial direction, pointing towards the lid section (for the cap) or towards the pouring opening (for the container).
  • bottom etc. refers to a position or direction in the exact opposite axial direction (rotated 180 degrees).
  • the cap body is located above the tamper-evident band.
  • inside etc. always refers to a position or direction radially towards the axis of the closure or the container neck
  • outside etc. always refers to a position or direction radially away from the axis of the closure or the container neck.
  • the affected containers with caps are in the form of bottles or canisters for liquids, typically used in agriculture or the chemical industry, for example for fertilizers, cleaning fluids, etc.
  • Such containers are generally made of plastic and, in combination with appropriate closures, have features that visibly indicate to a consumer when the closure has been opened for the first time.
  • the cap has the shape of a screw cap with a top plate and a cylindrical cap body with an internal thread that fits the external thread of the container neck.
  • tamper-evident bands also known as TE bands.
  • TE bands are attached to the cap, specifically to the lower edge of the cap's outer sleeve, in such a way that they break off if tampering is attempted or the cap is opened.
  • TE stands for "Tamper Evidence.” This prevents, or at least makes it apparent, if a container has been partially or completely emptied and refilled with other, inferior substances before its normal first opening. These substances could alter the contents of the container and pose a health or safety risk to the consumer, or simply do not meet the specifications of the original contents.
  • connection between the tamper-evident band and the other components of the cap must break or tear easily enough, both during attempted tampering and normal opening, to avoid unnecessarily hindering manual opening.
  • the tamper-evident band must also be securely attached to the other components of the cap so that the connection is not damaged or torn off completely or partially when the cap is attached to the container neck.
  • warranty band is connected to the cap mantle of the closure cap, for example via a weakened, thin-walled wall section or via several easily tearable bridges.
  • the warranty band features locking elements on its inner surface, such as locking teeth. These are designed to engage with corresponding locking elements on the container neck, such as the teeth of a toothed ring located on the container neck, both during and after closing, thus preventing the warranty band from rotating in the opening direction. Often, these elements also form...
  • the locking elements of the cap together form a toothed ring, so that two toothed rings are opposite each other when the cap is connected to the container neck.
  • the teeth of the container neck's toothed ring are typically designed so that, when the container is first closed, the locking teeth of the tamper-evident band can slide over the tips of the teeth without the tamper-evident band tearing completely or partially from the cap. Only when the cap is turned to open do the teeth of the container neck's toothed ring engage with the locking teeth of the tamper-evident band in such a way as to prevent the tamper-evident band from rotating with the rest of the cap. The tamper-evident band then tears completely from the cap as a result of the opening process.
  • the tips of the teeth of the toothed ring define a maximum radius of the toothed ring on such container necks, also referred to here as the "first radius.”
  • these teeth are arranged so that they are all, or at least predominantly, on the same radius with respect to the central axis of the external thread.
  • Between the teeth are gaps whose base defines a minimum radius of the toothed ring, also referred to as the "second radius,” and which generally also lies on a common radius with respect to the central closure axis defined by the external thread.
  • the minimum radius of the toothed ring is generally at least as large as the nominal radius of the external thread on the container neck to prevent interference between the locking teeth of the tamper-evident band and the thread on the container neck when the closure is applied.
  • the tips of the teeth could also be arranged on partially different radii with respect to the central axis. Similarly, not every tooth base between adjacent teeth necessarily has to have the minimum radius.
  • the tamper-evident bands with locking teeth do not form a positive or frictional connection with the container neck in the axial direction, as the locking teeth engage loosely in the tooth gaps and are only secured against rotation in the opening direction.
  • Axial retaining rings which are common and necessary on the container neck for other tamper-evident bands, such as flexible bands, are generally not present on tamper-evident bands with locking teeth, as these would hinder the screwing of a cap onto the container neck.
  • Corresponding shapes, such as undercuts, for axial retention of the tamper-evident band against the toothed ring cannot be formed on the locking teeth of the tamper-evident band, because screw caps with such undercuts cannot be demolded from the mold for the screw cap with the tamper-evident band. They could.
  • tamper-evident straps with locking teeth offer a high level of security against manipulation, especially for closures with large diameters between, for example, 50 and 80 mm, so they are frequently used for large containers such as canisters.
  • the tamper-evident band which loosely encloses the toothed ring, can be removed from the container neck or fall off when the container is tilted to pour out its contents (e.g., a liquid).
  • contents e.g., a liquid
  • the tamper-evident band can slip off the container neck and fall into another container into which the contents are being poured.
  • a liquid in the container might be being transferred to a mixer or dispensing system, and an inadvertently falling tamper-evident band into such a container or mixer could cause significant operational disruptions.
  • This falling of the tamper-evident band due to gravity is particularly problematic if the ring falls into a liquid reservoir connected to a machine, such as a large crop sprayer or a hydraulic reservoir on a hydraulically operated machine.
  • the inner diameter of the tamper-evident band defined by its locking teeth and gaps, to ensure the locking teeth maintain a frictional connection across the entire circumference of the ring on the container neck, thus preventing the band from falling off
  • the dimensions of the ring on a container neck typically manufactured from plastic using a blow molding process, vary too much to reliably prevent the band from falling off.
  • the inner diameter defined by the locking teeth cannot be reduced too much below the minimum radius defined above, as this would hinder the application of the closure to the container neck, potentially leading to operational disruptions during filling.
  • the present invention is therefore based on the objective of creating a closure cap and a container with a container neck that largely prevent the unintentional detachment of a warranty band, which has already been separated from the remaining components of the closure cap, from a container neck.
  • a closure cap with a lid section and a cap shell, wherein the cap shell has an internal thread and defines a closure axis so that the closure cap can be screwed onto an external thread of a container neck, wherein a circumferential edge of the cap shell facing away from the lid section is provided.
  • a tamper-evident band is arranged which is connected to the cap shell via several tearable bridges, wherein at least one locking element is arranged on the inside of the tamper-evident band, wherein the locking element extends inwards from the tamper-evident band, wherein the locking element has a first stop surface with a surface normal arranged at least partially tangentially to the cap shell, such that the first stop surface can be brought into engagement with a first stop surface of the container neck in an assembled state of the closure cap with a container having a container neck, wherein the engagement of the two first stop surfaces exerts a holding torque on the tamper-evident band acting against an opening direction of the closure cap when the closure cap is first turned in the opening direction.
  • At least one blocking element is arranged on the tamper-evident band of the closure cap, wherein the blocking element has a second stop surface with a surface normal pointing at least partially in the axial direction, so that the second stop surface can be brought into engagement with a second stop surface of the container neck in an assembled state of the closure cap with the container, wherein the engagement of the two second stop surfaces exerts a holding force acting in the axial direction on the tamper-evident band when the container is tilted to pour out a filling material.
  • the invention is based on the idea that the locking element of the cap, and its interaction with the container neck, prevents the tamper-evident band from detaching from the container when the container is tilted. This prevents, for example, the tamper-evident band from falling off if a canister equipped with a tamper-evident band and a standard top opening is tilted more than 90 degrees from its upright position.
  • the locking elements alone only block rotational movement of the tamper-evident band in the opening direction of the cap, which corresponds either to a clockwise circumferential direction, but in most cases to a counterclockwise circumferential direction.
  • the locking element additionally restricts the movement of the tamper-evident band in the axial direction, particularly in the axial direction extending from the tamper-evident band towards the cap section.
  • the blocking element and the locking element are two separate elements, preferably spatially separated from each other.
  • the blocking element is a radially inwardly projecting projection extending from the warranty band, wherein the projection is preferably formed integrally with the warranty band.
  • the blocking element is a radially inwardly projecting projection extending from the warranty band.
  • a projection can be produced easily and simply using injection molding and represents a good compromise between the desire for minimal material usage on the one hand and the desire for reliable axial securing of the warranty band against detachment on the other.
  • the locking element of the cap is preferably designed and arranged such that the initial screwing or fitting (application) onto or over the container neck is possible elastically and with less force than would be required for a cap without locking elements, while simultaneously providing sufficient holding force through a positive-locking engagement between the second stop surface of the cap's locking element and the second stop surface of the container neck. This prevents the tamper-evident band from coming loose when the container is tilted, regardless of the angle. Furthermore, in one embodiment, it should not be easily possible for the user to detach the tamper-evident band from the container neck using only hand or finger force.
  • the projection designed as a blocking element or the plurality of projections designed as blocking elements protrude radially inwards by 0.3 to 1 mm, preferably by 0.7 to 0.8 mm, from a surface of the warranty band adjacent to the projection or projections.
  • the dimensioning of the blocking element of the closure cap according to the invention described here enables both easy application of the closure cap to the container neck and sufficient securing of the warranty band against unintentional or intentional detachment.
  • the locking element is arranged on the side of the locking element facing away from the lid section.
  • a closure cap with such an arrangement of the locking elements can be manufactured particularly easily and cost-effectively.
  • the side of the locking element facing away from the lid section is most elastically deformable, so that the locking element can be moved easily over a protruding locking element of the container, which has a larger outer radius than the inner radius of the locking element of the closure cap, when the closure cap is first screwed or placed over it.
  • At least two radially inwardly projecting protrusions are provided as blocking elements on the warranty band.
  • 8 to 16 and particularly preferably 10 to 14 radially inwardly projecting protrusions are provided as blocking elements on the warranty band.
  • a blocking element designed as a projection extends over a circumferential section of the warranty band, which is between 1/36 and 1/24 of the total circumference of the warranty band.
  • the blocking elements are arranged equidistantly in the circumferential direction. This arrangement ensures a holding force acting homogeneously on the tamper-evident band when a container, which is connected to the tamper-evident band via the blocking element after the closure cap has been opened for the first time, is tilted.
  • the blocking element is a radially inwardly projecting projection extending circumferentially over the entire circumference.
  • a correspondingly shaped projection is also referred to as a ring.
  • Such a ring ensures a very homogeneous holding force, but requires more material than several short projections.
  • the blocking element has a rectangular, trapezoidal, or foot-shaped cross-section in a cross-sectional plane extending in the axial and a radial direction. These cross-sections are particularly well suited for a positive-locking engagement between the second stop surface of the closure cap's blocking element and the second stop surface of the container neck.
  • the locking element is designed as a projection, wherein the projection has at least one circumferentially extending rounded edge, the rounded edge preferably having a radius of curvature of 0.6 mm to 1.5 mm. Since the tamper-evident band and the locking element of the closure cap must be deformed as elastically as possible when the closure cap is attached to a container so that the two secondary contact surfaces can engage, the rounded edge described above is advantageous because it ensures a uniform distribution of forces during deformation and thus prevents cracks and breaks when the closure cap is attached.
  • the locking element on its side facing away from the lid section, or alternatively, an additional guide element arranged on the side of the locking element facing away from the lid section, has a guide chamfer with a surface normal on its side facing away from the lid section, wherein the surface normal of the guide chamfer extends axially away from the lid section and is oriented radially inwards, and wherein the guide chamfer is suitable for causing a uniform deformation of the tamper-evident band when the closure cap is first attached to a container.
  • the guide chamfer advantageously causes a uniform deformation of the tamper-evident band and the locking element arranged thereon when the closure cap is attached to a container neck, provided that the locking element of the closure cap has a minimum inner radius that is smaller than the maximum outer radius of the locking element of the container, such that the latter must be overcome by elastic deformation when the former is attached.
  • the leading chamfer extends radially inwards from a starting inner radius, wherein the starting inner radius is greater than or equal to the maximum outer radius of a blocking element of a container neck which is intended to be brought into contact with the closure cap.
  • a container with a container neck is also disclosed, wherein the container neck defines a container neck axis and has a pouring opening and an external thread for receiving a closure cap with an internal thread, wherein at least one locking element is arranged on the container neck on a side of the external thread facing away from the pouring opening, wherein the locking element extends outwards from the container neck, wherein the locking element has a first stop surface with a surface normal arranged at least partially tangentially to the container neck, such that the first stop surface can be brought into engagement with a first stop surface of the closure cap in a composite state of the container with a closure cap, wherein the engagement of the two first stop surfaces exerts a holding torque on the first stop surface of the closure cap acting against an opening direction of the closure cap when the closure cap is first rotated in the opening direction.
  • a blocking element is arranged at the neck of the container, wherein the blocking element has a second stop surface with a surface normal pointing at least partially in the axial direction, so that the second stop surface can engage with a second stop surface of the closure cap in a composite state of the container with the closure cap, wherein the engagement of the two second stop surfaces exerts a holding force acting in the axial direction on the second stop surface of the closure cap when the container is tilted to pour out a filling material.
  • a container within the meaning of the present invention shall in particular also be understood to be a preform, especially such preforms which are intended to be further processed by blow molding.
  • the container offers the possibility of connecting it with a sealing cap having a tamper-evident band, so that, with appropriate design of the sealing cap, for example according to one of the embodiments of the sealing cap according to the invention described above, a loosening of the tamper-evident band is reliably prevented if the container is tipped over during normal use.
  • the blocking element and the locking element are two separate elements, preferably spatially separated from each other.
  • the blocking element is a radially outward-projecting projection extending from the container neck or a radially inward-projecting recess in the container neck.
  • a projection can be easily and simply produced in a container, particularly a preform, using injection molding, and here too represents a good compromise between the desire for minimal material usage on the one hand and the desire for reliable protection against the removal of a tamper-evident seal on a cap used to close the container.
  • the projection designed as a blocking element, or the projections designed as several blocking elements protrude radially outwards by 0.3 to 1 mm, preferably by 0.7 to 0.8 mm, beyond the surface(s) of the container neck adjacent to the projection or projections.
  • the base of the depression (or depressions) designed as a blocking element is 0.5 to 1 mm, preferably 0.7 to 0.8 mm, radially offset inwards to the surface of the container neck adjacent to the respective depression.
  • the dimensioning of the container neck blocking element described here corresponds to the dimensioning of the blocking element of the closure cap according to the invention described above. Similarly, the dimensioning described here also allows for both easy application of the closure cap to the container neck and sufficient securing of the tamper-evident band against unintentional or intentional detachment.
  • the locking element is arranged on the side of the locking element facing away from the pouring opening. This makes it possible to use a corresponding closure cap in which the locking element is arranged on a side facing away from the lid section of the closure cap, thus offering the advantages described above for this case.
  • At least two, preferably 8 to 16 and particularly preferably 10 to 14 radially outward projecting protrusions or radially inward projecting recesses are provided as blocking elements on the container neck.
  • a blocking element designed as a projection or a recess extends over a circumferential section of the container neck, which is between 1/36 and 1/24 of the total circumference of the section of the container neck adjacent to the projection.
  • the locking elements are arranged equidistantly in the circumferential direction. This arrangement ensures a homogeneous holding force acting on a tamper-evident band of the closure cap when the container, which is connected to the tamper-evident band via the locking element after the closure cap has been opened for the first time, is tilted.
  • the blocking element is a radially outward-projecting projection extending circumferentially around the entire circumference, or a radially inward-projecting recess extending circumferentially around the entire circumference.
  • a correspondingly shaped projection is also referred to as a ring. Such a ring ensures a very homogeneous holding force, but requires more material than several short projections.
  • the blocking element has a rectangular, trapezoidal, or foot-shaped cross-section in a cross-sectional plane extending axially and radially. These cross-sections are particularly well suited for a positive-locking engagement between the second stop surface of the blocking element of the closure cap and the second stop surface of the closure cap.
  • the blocking element has a leading chamfer with a surface normal on its side closest to the pouring opening, wherein the surface normal of the leading chamfer extends axially towards the pouring opening and radially is oriented outwards, with the leading bevel being suitable to ensure a uniform deformation of the warranty band when a cap with a warranty band is first attached to the container.
  • the leading chamfer of the container extends radially outwards from a starting outer radius, wherein the starting outer radius is less than or equal to the value of a minimum inner radius of a blocking element of a closure cap intended to be connected to the container.
  • a closure cap according to claim 1 and a container
  • the closure cap has a lid section and a cap shell with an internal thread
  • the container has a container neck with an external thread, such that the closure cap can be screwed onto the external thread of the container neck
  • the cap shell defines a closure axis and the container neck defines a container axis
  • the closure axis and the container neck axis are coincident in the assembled state of the closure cap and container
  • a circumferential tamper-evident band is arranged on an edge of the cap shell facing away from the lid section, which is connected to the cap shell via several tearable bridges
  • at least one locking element is arranged on the inside of the tamper-evident band
  • at least one further locking element is arranged on the container neck on a side of the external thread facing away from the pouring opening, wherein the locking element of the closure cap and the locking element of the container neck are designed and
  • a locking element is arranged on the tamper-evident band of the cap and a locking element is arranged on the neck of the container, wherein the locking element of the cap and the locking element of the container are designed and arranged such that, in a combined state of the cap and container, a second stop surface of the locking element of the tamper-evident band can be engaged with a second stop surface of the locking element of the neck of the container, wherein the engagement of the two second stop surfaces exerts a holding force on the tamper-evident band acting in the direction of the cap and neck axis when the container is tilted to pour out a product.
  • FIG. 1 A cross-section through an embodiment of the inventive combination of closure cap 1 and container 11 is shown, with only the area of the container neck visible.
  • the Figure 1 The cap shown 1 also represents an embodiment of the cap according to the invention. In the view shown here, the cap 1 is completely screwed onto the container neck without the cap having been opened for the first time. This therefore represents the situation as it would appear to a user before opening the cap for the first time.
  • the tearable bridges 6 between the cap body 3 and the tamper-evident band 5 are not yet torn.
  • the warranty band 5 has a projection at its lower edge, i.e., on the side of the warranty band 5 facing away from the cover section 2, at both visible cross-sectional positions, which projects radially inwards.
  • This projection constitutes a blocking element 9 arranged on the warranty band within the meaning of the present invention. The mode of operation of this blocking element 9 will become particularly clear from the following description of the Figure 2 .
  • Figure 2 shows a magnification of area A from Figure 1 This is a detailed view of the area around a locking element 9 of the closure cap 1.
  • the locking element 9 of the closure cap 1 shown here has a foot-shaped cross-section, is located at the lowest edge of the tamper-evident band 5 and thus also below the locking elements 7 of the closure cap 1, and projects radially inwards by approximately 2/3 of the radial thickness of the tamper-evident band 5 beyond the inside of the tamper-evident band 5.
  • the second stop surface 10 of the locking element 9 has an inclination in the downward axial direction, i.e., in the axial direction pointing from the lid section 2 towards the container 11, and rounded edges, resulting in an overall S-shaped and simultaneously downwardly inclined second stop surface 10.
  • the blocking element 9, arranged on the tamper strap 5, is axially opposed on the side of the container 11 by a projection located on the container neck.
  • This projection constitutes a blocking element 16 of the container 11.
  • the blocking element 16 of the container 11 shown here has a trapezoidal cross-section, with the second stop surface 17 of the blocking element 16 of the container 11 being located on the side of the blocking element 16 facing away from the pouring opening 12 and extending substantially perpendicular to the outside of the container neck.
  • the surface section 20 of the blocking element 16 on the side of the blocking element 16 axially opposite the second stop surface 17 has an outward and downward inclination (leading away from the pouring opening 12) at an angle of approximately 30 degrees – measured with respect to a plane perpendicular to the container neck axis, which is located in Figure 2 represented by the auxiliary line 99 - , where the inclination begins at an outer radius of the container neck that is smaller than the minimum inner radius of the blocking element 9 of the closure cap 1.
  • the curved and inclined design of the second stop surface 10 of the locking element 9 of the closure cap 1 and the downwardly and outwardly inclined upper surface section 20 of the locking element 16 of the container 11 cause the locking element 9 to slide along the inclined surface section 20 as if on a track when the closure cap 1 is first applied (screwed on or slipped over) to the container neck. This results in a gradual and non-sudden radial outward deformation of the locking element 9 of the closure cap 1 and the associated tamper-evident band 5.
  • the surface section 20 thus constitutes a leading chamfer within the meaning of the present invention.
  • the rounded edges of the locking element 9 ensure that the shear forces occurring during deformation are distributed as evenly as possible across the areas of the locking element 9 and the tamper-evident band 5, thereby minimizing the risk of unintentional cracks and breaks due to deformation during the initial application of the closure cap. Because the goal in this case is elastic deformation.
  • the locking cap 1 is shown again separately in a perspective view from a low angle.
  • This illustration shows that twelve locking elements 9 are provided at equidistant intervals around the circumference of the warranty band 5, each extending over a distance of 1/30 of the total circumference of the warranty band 5.
  • Twelve locking elements 7 are also arranged at equidistant intervals above the locking elements 9 on the warranty band 5. This series of locking elements 7 is also referred to as a toothed ring.
  • Figure 4 shows the one for the closure cap 1 from Figure 3 corresponding container neck.
  • the blocking element 16 of the container 11 is designed as a circumferential ring, so that for any rotational position it is guaranteed that the blocking elements 9 of the closure cap 1 can engage with the blocking element 16 of the container neck.
  • a toothed ring with detent elements 7 and corresponding first stop surfaces 15, located above the blocking element 16, can be identified.
  • first stop surfaces 15 engage with the first stop surfaces 8 of the detent elements 7 of the cap 1 when the closure cap 1 is unscrewed from the container neck for the first time, in order to block a rotational movement of the tamper-evident band 5 in the opening direction and thus prevent the breakable bridges 6 from breaking and the tamper-evident band 5 from the remaining components of the cap 1.

Landscapes

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

Claims (15)

  1. Bouchon de fermeture (1) avec une partie couvercle (2) et une jupe de bouchon (3), la jupe de bouchon (3) comprenant un taraudage (4) et définissant un axe de fermeture (50), si bien que le bouchon de fermeture (1) puisse être vissé sur un filetage (13) d'un col de récipient,
    une bande de garantie (5) circonférentielle étant disposée sur un bord de la jupe de bouchon (3) opposé à la partie couvercle (2), et étant reliée à la jupe de bouchon (3) par plusieurs ponts (6) déchirables,
    au moins un élément d'encliquetage (7) étant disposé sur la face intérieure de la bande de garantie (5),
    l'élément d'encliquetage (7) s'étendant de la bande de garantie (5) vers l'intérieur, l'élément d'encliquetage (7) comprenant une première surface de butée (8) avec une normale à la surface disposée au moins proportionnellement en tangente à la jupe de bouchon (3), si bien que, en état assemblé du bouchon de fermeture (1) avec un récipient (11) comprenant le col de récipient, la première surface de butée (8) puisse être engagée avec une première surface de butée (15) du col de récipient,
    par l'engagement des deux premières surfaces de butée (8, 15), un couple de maintien qui agit dans le sens opposé à une direction d'ouverture du bouchon de fermeture (1), agissant sur la bande de garantie (5) lorsque le bouchon de fermeture (1) est tourné dans la direction d'ouverture pour la première fois,
    un élément de blocage (9) étant disposé sur la bande de garantie (5),
    l'élément de blocage (9) comprenant une deuxième surface de butée (10) avec une normale à la surface orienté au moins proportionnellement dans une direction axiale, si bien que, en état assemblé du bouchon de fermeture (1) avec le récipient (11), la deuxième surface de butée (10) puisse être engagée avec une deuxième surface de butée (17) du col de récipient,
    par l'engagement des deux deuxièmes surfaces de butée (10, 17), un couple de maintien qui agit dans la direction axiale, agissant sur la bande de garantie (5) lorsque le récipient (11) est penché pour verser un produit de remplissage, l'élément de blocage (9) étant une saillie s'étendant radialement vers l'intérieur à partir de la bande de garantie (5),
    la saillie étant formée de matière avec la bande de garantie (5),
    vu de l'élément de butée (7), l'élément de blocage (9) étant disposé sur le côté de la bande de garantie (5) opposé à la partie couvercle (2),
    sur la bande de garantie (5), au moins deux saillies s'étendant radialement vers l'intérieur, étant prévus comme éléments de blocage (9).
  2. Bouchon de fermeture (1) selon la revendication 1, la plupart des saillies formées comme éléments de blocage dépassant, par rapport à une surface de la bande de garantie adjacente aux saillies, de 0,3 à 1 mm radialement vers l'intérieur.
  3. Bouchon de fermeture (1) selon l'une des revendications précédentes, sur la bande de garantie (5), 8 à 16 et de façon particulièrement préférée 10 à 14 saillies dépassant radialement vers l'intérieur étant prévues comme éléments de blocage (9).
  4. Bouchon de fermeture (1) selon l'une des revendications précédentes, une saillie formée comme élément de blocage comprenant au moins un bord arrondi s'étendant en direction circonférentielle, le bord arrondi ayant de préférence un rayon de courbure de 0,6 mm à 1,2 mm.
  5. Bouchon de fermeture (1) selon l'une des revendications précédentes, un des éléments de blocage (9) comprenant sur le côté opposé à la partie couvercle (2), ou un élément d'entrée supplémentaire disposé sur le côté de l'élément de blocage (9) opposé à la partie de couvercle (2) comprenant sur le côté opposé à la partie de couvercle (2), un chanfrein d'entrée (20) avec une normale à la surface, la normale à la surface du chanfrein d'entrée étant orientée en direction axiale en éloignement de la partie couvercle (2) et en direction radiale vers l'intérieur, le chanfrein d'entrée (20) étant approprié pour causer, lors d'une première pose du bouchon de fermeture (1) sur un récipient (11), une déformation de la bande de garantie (5).
  6. Bouchon de fermeture (1) selon l'une des revendications précédentes, le bouchon de fermeture ayant un diamètre de 50 mm à 80 mm.
  7. Bouchon de fermeture (1) selon l'une des revendications précédentes, un des éléments de blocage ayant, dans un plan de coupe transversale qui s'étend dans la direction axiale et dans une direction radiale, une coupe transversale rectangulaire ou trapézoïdale.
  8. Combinaison d'un bouchon de fermeture (1) et d'un récipient (11),
    le bouchon de fermeture comprenant une partie couvercle (2) et une jupe de bouchon (3) avec un taraudage (4) et le récipient (11) comprenant un col de récipient avec un filetage (13), si bien que le bouchon de fermeture (1) puisse être vissé sur le filetage (13) du col de récipient,
    la jupe de bouchon (3) définissant un axe de fermeture (50) et le col de récipient définissant un axe de récipient (51), l'axe de fermeture (50) et l'axe de récipient (51) se superposant en l'état assemblé du bouchon de fermeture (1) et du récipient (11), une bande de garantie (5) circonférentielle étant disposée sur un bord de la jupe de bouchon (3) opposé à la partie couvercle (2), et étant reliée à la jupe de bouchon (3) par plusieurs ponts (6) déchirables,
    au moins un élément d'encliquetage (7) étant disposé sur la face intérieure de la bande de garantie (5),
    sur un côté du filetage (13) opposé à une ouverture de versement (12), au moins un autre élément d'encliquetage (14) étant disposé sur le col de récipient,
    l'élément d'encliquetage (7) du bouchon de fermeture (1) comprenant une première surface de butée (8) avec une normale à la surface disposée au moins proportionnellement en tangente à la jupe de bouchon (3) et l'élément d'encliquetage (14) du col de récipient (11) comprenant une première surface de butée (15), si bien que les éléments d'encliquetage soient formés et disposés de façon que, en état assemblé du bouchon de fermeture (1) et du récipient (11), la première surface de butée (8) de l'élément d'encliquetage (7) du bouchon de fermeture (1) puisse être engagée avec la première surface de butée (15) de l'élément d'encliquetage (14) du récipient (11),
    par l'engagement des deux premières surfaces de butée (8, 15), un couple de maintien qui agit dans le sens opposé à une direction d'ouverture du bouchon de fermeture (1), agissant sur la bande de garantie (5) lorsque le bouchon de fermeture (1) est tourné dans la direction d'ouverture pour la première fois,
    un élément de blocage (9) étant disposé sur la bande de garantie (5) et un élément de blocage (16) étant disposé sur le col de récipient,
    l'élément de blocage (9) du bouchon de fermeture (1) comprenant une deuxième surface de butée (10) avec une normale à la surface orientée au moins proportionnellement dans une direction axiale, et l'élément de blocage (9) du bouchon de fermeture et l'élément de blocage (16) du récipient (11) étant configurés et disposés de façon que, en état assemblé du bouchon de fermeture (1) et du récipient (11), la deuxième surface de butée (10) de l'élément de blocage (9) du bouchon de fermeture (1) puisse être engagée avec une deuxième surface de butée (17) de l'élément de blocage (16) disposé sur le col de récipient,
    par l'engagement des deux deuxièmes surfaces de butée (10, 17), une force de maintien qui agit dans la direction de l'axe de fermeture et de l'axe de récipient (50, 51), agissant sur la bande de garantie (5) lorsque le récipient (11) est penché pour verser un produit de remplissage,
    l'élément de blocage (9) du bouchon de fermeture étant une saillie s'étendant radialement vers l'intérieur à partir de la bande de garantie (5),
    la saillie étant formée de matière avec la bande de garantie (5),
    vu de l'élément de butée (7), l'élément de blocage (9) du bouchon de fermeture étant disposé sur le côté de la bande de garantie (5) opposé à la partie couvercle (2),
    sur la bande de garantie (5), au moins deux saillies s'étendant radialement vers l'intérieur, étant prévus comme éléments de blocage (9).
  9. Combinaison selon la revendication 8, l'élément de blocage (16) du récipient étant une saillie du col de récipient s'étendant, à partir du col de récipient, radialement vers l'extérieur.
  10. Combinaison selon la revendication 9, la saillie formée comme élément de blocage du récipient (11) étant en saillie de 0,3 à 1 mm radialement vers l'extérieur au-dessus de la surface du col de récipient adjacente à la saillie.
  11. Combinaison selon l'une des revendications 8 à 10, vu à partir de l'élément d'encliquetage (14), l'élément de blocage (16) du récipient (11) étant disposé sur le côté du col de récipient opposé à l'ouverture de versement (12).
  12. Combinaison selon la revendication 9 ou selon l'une des revendications 10 ou 11 si elles sont rattachées à la revendication 9, au moins deux, de préférence 8 à 16 et de façon particulièrement préférée 10 à 14 saillies s'étendant radialement vers l'extérieur étant prévus sur le col de récipient comme éléments de blocage (16).
  13. Combinaison selon la revendication 12, les éléments de blocage (16) du récipient (11) étant disposés à distances égales dans la direction circonférentielle.
  14. Combinaison selon l'une des revendications 8 à 11, l'élément de blocage (16) du récipient (11) étant une saillie s'étendant sur le pourtour complet et radialement vers l'extérieur.
  15. Combinaison selon l'une des revendications 8 à 14, l'élément de blocage (16) du récipient (11) comprenant sur le côté le plus proche de l'ouverture de versement (12) un chanfrein d'entrée (20) avec une normale à la surface, la normale à la surface du chanfrein d'entrée (20) étant orientée en direction axiale vers l'ouverture de versement (12) et en direction radiale vers l'extérieur, le chanfrein d'entrée (20) étant approprié pour causer, lors d'une première pose du bouchon de fermeture (1) avec une bande de garantie (5) sur un récipient (11), une déformation de la bande de garantie (5).
EP21815403.7A 2020-11-17 2021-11-12 Bouchon de fermeture et col de récipient pour empêcher une bande d'inviolabilité de se détacher Active EP4247724B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020130311.4A DE102020130311A1 (de) 2020-11-17 2020-11-17 Verschlusskappe und Behälter mit Behälterhals für Ablöse-Sicherung des Garantiebandes
PCT/EP2021/081582 WO2022106321A1 (fr) 2020-11-17 2021-11-12 Bouchon de fermeture et col de récipient pour empêcher une bande d'inviolabilité de se détacher

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EP4247724A1 EP4247724A1 (fr) 2023-09-27
EP4247724B1 true EP4247724B1 (fr) 2026-02-18
EP4247724C0 EP4247724C0 (fr) 2026-02-18

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US (1) US12291376B2 (fr)
EP (1) EP4247724B1 (fr)
CN (1) CN116438117A (fr)
DE (1) DE102020130311A1 (fr)
WO (1) WO2022106321A1 (fr)

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE202007009673U1 (de) * 2007-05-10 2007-10-31 Kaduk, Waldemar Behälter mit Verschlusskappe

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CA2077722A1 (fr) 1992-07-31 1994-02-01 Luca Molinaro Capsule souple amovible a encliqueter indicateur d'effraction
JP4222652B2 (ja) * 1997-12-25 2009-02-12 大日本印刷株式会社 注出口とキャップとの組合体、および注出口
US8517194B2 (en) 2004-03-11 2013-08-27 Berry Plastics Corporation Tamper-indicating closure and package
GB0503623D0 (en) 2005-02-22 2005-03-30 Camlab Ltd Secure sample collection
DE102007005594A1 (de) 2007-01-31 2008-08-07 Bericap Gmbh & Co. Kg Schraubverschluß mit definierter Garantiebandablösung
DE102007041365B4 (de) * 2007-08-30 2014-07-17 Bericap Gmbh & Co. Kg Schraubverschluß mit Garantieband
US20120031871A1 (en) * 2010-08-04 2012-02-09 Omega Cap Soultions LLC Step twist zipped visual tamper-evident cap and neck finish
GB2560198B (en) * 2017-03-03 2020-10-07 Guala Closures Int B V Tamper evident closure
DE102018108491A1 (de) * 2018-04-10 2019-10-10 Bericap Holding Gmbh Fälschungssicherer Schraubverschluss

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Publication number Priority date Publication date Assignee Title
DE202007009673U1 (de) * 2007-05-10 2007-10-31 Kaduk, Waldemar Behälter mit Verschlusskappe

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US12291376B2 (en) 2025-05-06
US20230399149A1 (en) 2023-12-14
EP4247724A1 (fr) 2023-09-27
EP4247724C0 (fr) 2026-02-18
DE102020130311A1 (de) 2022-05-19
CN116438117A (zh) 2023-07-14
WO2022106321A1 (fr) 2022-05-27

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