EP1627821B1 - Bouchon fileté pour conteneur - Google Patents

Bouchon fileté pour conteneur Download PDF

Info

Publication number
EP1627821B1
EP1627821B1 EP20040405512 EP04405512A EP1627821B1 EP 1627821 B1 EP1627821 B1 EP 1627821B1 EP 20040405512 EP20040405512 EP 20040405512 EP 04405512 A EP04405512 A EP 04405512A EP 1627821 B1 EP1627821 B1 EP 1627821B1
Authority
EP
European Patent Office
Prior art keywords
skirt
cap
container
face
recited
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.)
Not-in-force
Application number
EP20040405512
Other languages
German (de)
English (en)
Other versions
EP1627821A1 (fr
Inventor
Roman Angst
Paul Wirz
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.)
Packsys Global Switzerland Ltd
Original Assignee
Packsys Global Switzerland Ltd
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 Packsys Global Switzerland Ltd filed Critical Packsys Global Switzerland Ltd
Priority to EP20040405512 priority Critical patent/EP1627821B1/fr
Priority to DE602004006255T priority patent/DE602004006255T2/de
Publication of EP1627821A1 publication Critical patent/EP1627821A1/fr
Application granted granted Critical
Publication of EP1627821B1 publication Critical patent/EP1627821B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B65D41/325—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 with integral internal sealing means
    • 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
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
    • B65D41/0421—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck and combined with integral sealing means contacting other surfaces of a container neck

Definitions

  • the invention relates to a screw cap for a container, the cap being made of a plastics material and comprising an inner circular skirt provided on an inner top face of the cap, for sealing against an inner face of a mouth of the container when the cap is applied to the container; a support structure provided on the inner top face of the cap, associated with the inner skirt; and an outer skirt provided on the inner top face of the cap, arranged coaxially around the inner skirt and distant from a side wall of the cap, for sealing against an outer face of the mouth of the container.
  • Screw caps are widely used for a variety of different containers such as bottles or jars. Traditionally, the content of the container has been sealed off by a sealing liner inserted inside the screw cap. However, linerless caps are favourable regarding cost efficiency, durability and effective recycling. With linerless caps, special means are required for sealing the closure against the mouth of the container, in particular if the caps are to be manufactured of a single plastics material, in a single forming (in particular molding) step.
  • linerless caps feature an inner circular skirt provided on an inner top face of the cap.
  • the skirt is dimensioned such that it seals against an inner face of the container's mouth, i. e. against the cylindrical portion of the container's neck and/or the rounded portion at the top end of the mouth.
  • the inner skirt contacts the inner face of the container's mouth and is introduced into the mouth along a certain distance.
  • the skirt is slightly deformed, such that it exerts a certain force against the container's mouth.
  • the skirt In order to reliably seal, the skirt is rigid which is achieved by choosing a rigid material or by dimensioning the skirt accordingly. This may lead to problems concerning closing and reclosing the container because of a high counterpressure exerted by the mouth of the container against the inner skirt of the cap.
  • the international patent application WO 97/10154 discloses a screw cap for a container featuring an inner skirt that has a predetermined flexural strength, whereby a support structure in the form of an annular rib is associated with the skirt.
  • a support structure in the form of an annular rib is associated with the skirt.
  • the US patent No. 4,560,077 (Sun Coast Plastics) relates to a plastics closure cap featuring two sealing lips on its inside, extending from the inner top face of the cap, enclosing an angle of about 10° to a vertical axis. On the inside of the inner sealing lip a continuous supporting lip for the inner sealing lip is provided. When the cap is applied to the container the supporting lip is contacted by the inner sealing lip and thereby pressed back and down.
  • the two sealing lips improve the overall tightness of the closure.
  • the independent outer skirt is particularly advantageous in connection with the support structure provided for the inner skirt, in that the mouth of the container is reliably guided and held in between two rather rigid elements, namely the outer skirt and the support structure, whereas the inner, more flexible skirt ensures a tight sealing of the container and at the same time facilitates opening and reclosing the container.
  • the side wall of the cap which features the screw thread for fastening the cap to the container's neck, additionally seals against the outer face of the container's mouth, i. e. against the cylindrical portion of the neck and/or the rounded portion at the top end of the mouth.
  • the support structure comprises a plurality of elements arranged distant from one another, where each of the plurality of elements is formed and arranged such as to be contacted by an associated segment of the inner skirt when the cap is applied to the container.
  • the inventive cap instead of the known combination of two coaxial skirts (inner skirt/annular rib) arranged inside the container's mouth the inventive cap features a single coaxial skirt (the inner skirt) and a plurality of associated support elements inside the mouth and a further coaxial skirt (the outer skirt) outside of the mouth.
  • the plurality of elements contacting the inner skirt at distant locations ensure a high circumferential flexibility of the inner skirt. This is because the skirt has more freedom to deform compared to the known solution where the support structure is a coaxial skirt.
  • the improved flexibility and the locally independent support of the inner skirt are particularly important if the radial forces exerted on the inner skirt are not constant along the skirt's circumference as may be the case e. g. due to manufacturing tolerances of the cap and/or the container or due to slight canting of the cap during application. In these cases, opening and reclosing of the container is eased by the interplay of the more rigid outer skirt and the support structure with the more flexible inner skirt.
  • the plurality of elements are arranged equally spaced along a circle that is coaxial with and interior of the inner skirt.
  • the equal spacing of the elements as well as their equal radial distance with respect to the inner skirt ensures even support for the inner skirt.
  • all of the elements are uniform, by preference they are segment-shaped projections having a wedge-shaped radial cross-section.
  • the tangential width of the elements and therefore the potential contact area with the inner skirt, and correspondingly the width of the spacings in between the elements may be adjusted in order to optimise the flexibility of the inner skirt/support structure combination. If a high flexibility is required, the tangential width of the elements may be reduced. In an extreme case, for achieving maximum flexibility the elements may be radially oriented noses that are to contact the inner skirt only in a very small, almost point-like area.
  • the number of equally spaced elements is at least 8, preferably 12 or more.
  • a segment of the inner skirt associated to one of the elements is rather short and therefore the supporting effect of a single element is constricted to a confined region of the skirt, ensuring good support and at the same time high flexibility concerning the deformation of the inner skirt.
  • the plurality of elements are arranged on an annular bank that is provided on the inner top face of the cap.
  • the bank serves to bear the individual elements and is never directly contacted by the inner skirt.
  • the elements of the support structure are directly borne on the inner top face of the cap, or the elements are formed on the outer face of a structure or a plurality of structures that are arranged in a larger radial distance to the inner skirt than the elements themselves.
  • each of the plurality of elements has an inner conical face such that a radial thickness of the element decreases from the inner top face of the cap. This ensures good support for the inner skirt and at the same time minimised use of material. Furthermore, forces applied onto the elements of the support structure are smoothly transferred to the top face of the cap.
  • the outer face of the elements i. e. the face that is contacted by the inner skirt, may be perpendicular with respect to the inner top face of the cap or featuring a dedicated seat for the inner skirt.
  • a height of each of the plurality of elements is between half a height of the inner skirt and the full height of the inner skirt, preferably about 3/4 of the height of the inner skirt.
  • an outer face of the inner skirt features an annular radial bulge for contacting the inner face of the mouth of the container, i. e. the outer face of the inner skirt features two substantially conical sections meeting with their maximum cross-section at a central level of the skirt.
  • the lower conical section close to the lower end of the skirt ensures that the inner skirt is smoothly contacted by the mouth of the container and that its deformation and thus the tightening force increase gradually. Due to its reduced cross-section, it is the upper conical section which is closer to the inner top face of the cap that is primarily deformed when the cap is applied to the container.
  • the inner skirt is bent instead of compressed which facilitates the use of hard plastics materials (such as polypropylene) and reduces radial forces transmitted to the top face of the cap. Compression only takes place at a final stage when the inner skirt contacts the support structure. The resulting forces are mainly transferred to the elements of the support structure.
  • hard plastics materials such as polypropylene
  • each of the plurality of elements of the support structure ends preferably at about a height that corresponds to the lower conical section of the radial bulge of the inner skirt.
  • the bulge is at about half the height of the inner skirt such that the height of the elements is between half the height of the skirt and the full height of the skirt.
  • the outer skirt ends at about a height corresponding to the maximum wall thickness of the radial bulge.
  • a height of the inner skirt is preferably about 2-4 times a height of the outer skirt.
  • the long inner skirt ensures reliable sealing of the container at least until a tamper evident ring of the cap is broken. Only after this has happened, the inner skirt loses contact with the mouth of the container and outside air may flow into the container, thereby destroying the vacuum generated by the hot fill process.
  • the length of the support structure is preferably increased accordingly, e. g. until it corresponds to half the height of inner skirt to the full height of the inner skirt.
  • inventive screw caps to be used for CSD containers generally feature inner skirts having a height of less than 2 times, preferably about 1.5 times, the height of the outer skirt.
  • a radial cross-section of the outer skirt is substantially constant, whereby an inner face as well as an outer face of the outer skirt are substantially perpendicular to the inner top face of the cap.
  • the spring characteristic of the outer skirt may be tuned by choosing a non-constant radial profile; e. g. the increase of the spring force may be increased if the outer skirt has a wedge-shaped radial cross-section with a conical outer face.
  • annular bead is provided on the inner top face of the cap, arranged coaxially between the inner skirt and the outer skirt.
  • the annular bead contacts the top side of the mouth of the container and thereby constitutes another sealing in between the sealings provided by the inner and the outer skirt, further improving the tightness of the closure.
  • the plastics material is polypropylene (PP).
  • PP polypropylene
  • Polypropylene is tough, lightweight and easily processed via injection or compression molding (jars and closures). Furthermore it has excellent chemical resistance and is stable up to high temperatures and therefore compatible with high filling temperatures as used e. g. with hot fill products such as orange juice, syrups etc.
  • the invention is applicable with other plastics materials such as polyethylene (PE), polyethylene terephthalate (PET), polystyrene (PS) or polyvinyl chloride (PVC).
  • PE polyethylene
  • PET polyethylene terephthalate
  • PS polystyrene
  • PVC polyvinyl chloride
  • a first thickness of a top wall of the cap, in an annular region featuring the inner circular skirt as well as the support structure, is larger than a second thickness of the top wall in a central region of the cap.
  • the Figure 1 shows a vertical cross-section along a diameter of an inventive screw cap appropriate for carbonated soft drink (CSD) containers.
  • the cap 1 is molded in a single step and manufactured from polypropylene (PP). It is substantially constituted by a circular head section 2 and a cylindrical side wall 3.
  • the outer face of the side wall 3 features knurls 4 for improving the handling of the cap 1 by a user and by closing heads employed for initially screwing down the cap 1 applied to the neck of a bottle.
  • a first section 3a of the side wall 3, adjacent to the head section 2, has a first constant wall thickness.
  • the inner face of a second section 3b of the side wall 3 features a screw thread 5 for screwing the cap 1 onto the neck of a container, the neck featuring a corresponding threading.
  • the first section 3a and the second section 3b make up about half of the height of the side wall 3.
  • a third section 3c of the side wall 3 has again a constant wall thickness which is however less than the thickness of the first section 3a.
  • the lowermost fourth section 3d of the side wall 3 has again an even smaller constant wall thickness.
  • a tamper evident band 6 is joined to the fourth section 3d. All types of tamper evident bands 6 may be employed with the invention.
  • the band 6 is folded up inside prior to applying the cap 1 to the container. After application, its free ending co-operates with an annular collar provided on the neck of the container. When the container is first opened the band is ripped off from the side wall 3 of the cap 1 along a dedicated breaking line. Therefore, an intact band 6 assures the customer that there has been no tampering after the cap 1 was applied to the container.
  • the inner face 2a of the head section 2 of the cap 1 features a plurality of structures that are displayed in greater detail in Figures 2A, B.
  • the Figure 2A is a detailed view of Figure 1, showing the outer region of the head section 2 of the cap 1 as well as the adjacent first and second sections 3a, b of the side wall 3.
  • Four kinds of projections are featured on the inner face 2a of the head section 2, which are (from the periphery to the centre of the cap) an outer skirt 7, a bead 8, an inner skirt 9 and a support segment 10.
  • the main axes of the projections are perpendicular to the inner face 2a of the head section 2.
  • the annular outer skirt 7 is arranged in a radial distance inside the first section 3a of the side wall 3. Its cross-section is generally constant, except that its inner face is rounded close to the bottom end. By way of example, for a 28 mm screw cap the radial cross-section of the outer skirt 7 is about 0.5 mm and its height is about 1.5 mm.
  • the annular bead 8 has a roughly triangular radial cross-section with a rounded ridge. The height of the bead 8 is only about one eighth of the height of the outer skirt 7.
  • the annular inner skirt 9 Adjacent to the head section 2, the annular inner skirt 9 shows a first section 9a having a constant radial cross-section. Two substantially conical sections 9b, 9c further make up the inner skirt 9, meeting with their maximum cross-sections at a central level of the skirt 9, forming a bulge 9d.
  • the outer face of the upper conical section 9b includes an angle ⁇ of about 20° with the main axis of the inner skirt 9.
  • the outer face of the lower section 9b includes an angle ⁇ of about 30° with the main axis.
  • the inner face of all the sections 9a-c of the inner skirt 9 is straight and parallel to the main axis of the inner skirt 9.
  • the cross-section of the first section 9a of the inner skirt 9 corresponds to about the cross-section of the outer skirt 7. At the level of the bulge 9d the cross-section is about 1.5 times larger. At the bottom end of the lowermost section 9c, the cross-section of the inner skirt 9 is only about one third compared to the upper end. The total height of the inner skirt 9 amounts to about 1.5 times the height of the outer skirt 7.
  • the radial distance between the outer skirt 7 and the first section 9a of the inner skirt 9 is slightly less than the wall thickness of the neck of a container the cap 1 is to be applied to.
  • the bulge 9d formed on the outer face of the inner skirt 9 radially protrudes into the clearance between the two skirts 7, 9.
  • the support segment 10 is arranged with a radial distance inside the inner skirt 9. It is provided on an annular bank 11 which is formed on the inner face 2a of the head section 2.
  • the segment 10 is substantially wedge-shaped whereby the outer face 10a adjacent to the inner skirt 9 is straight and perpendicular to the inner face 2a of the head section 2.
  • the inner face 10b is conical in such a way that the radial cross-section of the segment 10 decreases from the annular bank 11 to the bottom ending of the segment 10 to about half of the initial cross-section.
  • the wedge angle ⁇ amounts to about 20°.
  • the bottom edges of the segment 10 are rounded.
  • the total height of the support segment 10 (including the annular bank 11) corresponds to about 0.7 times the height of the inner skirt 9. Therefore, the bottom ending of the support segment 10 is at a height that corresponds to the lower conical section 9c of the inner skirt 9.
  • the wall thickness of the central region 2b of the head section 2 of the cap 1, i. e. of the region inside the annular bank 11 featuring the segment 10, is about 0.85 times the wall thickness of the annular region 2c in which the described projections are provided.
  • the Figure 2B is again a detailed view of Figure 1, now showing the inner and outer skirts 7, 9 and the support structure 10, 11 for the inner skirt 9 when the cap 1 is applied to a bottle 12.
  • the bottle 12 comprises a neck 13 forming a circular mouth 14 for filling and pouring out.
  • the neck 13 features a screw thread 15 for co-operating with the corresponding screw thread 5 in section 3b of the side wall 3 of the cap 1.
  • the mouth 14 contacts the inner face of the outer skirt 7 and the outer face of the inner skirt 9. Because of the rounded bottom end of the outer skirt 7 and the conical section 9c of the inner skirt 9 the mouth 14 is carefully guided along the adjacent faces of the two skirts 7, 9. At first, both the outer skirt 7 as well as the inner skirt 9 are about equally deformable. The more the mouth 14 is introduced into the cap the counterpressure from the outer skirt 7 increases. However, the spring force of the inner skirt 9 only slightly changes because the deformation mainly takes place in the top section 9a adjacent to the head section 2. Thereby, the mouth 14 is guided into its desired end position, where the outer face of the mouth 14 is firmly supported by the inner face of the outer skirt 7. The inner face of the mouth 14 is supported by the bulge 9d as well as the inner face of the top region 9a of the inner skirt 9.
  • the Figure 3 shows a horizontal cross-section (along line A-A in Figure 1) of the inventive screw cap 1, illustrating the arrangement of the support segments 10. 24 uniform segments 10 are arranged along a circle that is coaxial with and inside the inner skirt 9.
  • the segments 10 are provided on the unsegmented annular bank 11 and separated by clearances 16, whereby in the displayed example a segmental angle of a segment 10 is about six times the segmental angle of a clearance 16, i. e. the segmental angle of a segment is about 13° and the segmental angle of a clearance is about 2°.
  • the annular bead 8 as well as the outer skirt 7.
  • the Figure 4A shows a detailed view of a vertical cross-section of a further embodiment of an inventive screw cap appropriate for hot fill containers.
  • the cap 101 corresponds to the cap for CSD containers described in connection with the Figures 1-3. Therefore, in the following we concentrate on the differences with respect to the first embodiment and do not address all the common features.
  • the reference numbers concerning the second embodiment are offset by 100 compared to the reference numbers concerning the first embodiment.
  • the main difference concerns the inner skirt 109 and the support segments 110.
  • the length of the first section 1 09a of the inner skirt 109, adjacent to the inner face 102a of the top section 102 of the cap 101, is increased such that the total height of the inner skirt 109 is about 2.5 times the height of the outer skirt 107.
  • the other sections of the inner skirt 109, namely the conical sections 109b, 109c forming the bulge 109d generally correspond to their counterparts of the first embodiment.
  • the height of the support segment 110 is correspondingly increased such that it ends at a height that corresponds to the lower conical section 109c of the inner skirt 109.
  • the height of the support segment 110 (including the height of the annular bank 111) is about 0.85 times the length of the inner skirt 109.
  • the Figure 4B shows the inner and outer skirts 107, 109 and the support structure 110, 111 for the inner skirt 109 when the cap 101 is applied to a bottle 112.
  • the bottle 112 comprises a neck 113 forming a circular mouth 114 for filling and pouring out.
  • the neck 113 features a screw thread 115 for co-operating with the corresponding screw thread 105 in the side wall 103 of the cap 101.
  • the mouth 114 first contacts the outer face of the inner skirt 109.
  • the counterpressure from the inner skirt 109 only slightly changes because the deformation mainly takes place in the top section 109a adjacent to the head section 102.
  • the mouth 114 After the mouth 114 has as well contacted the inner face of the outer skirt 107 it is carefully guided along the adjacent faces of the two skirts 107, 109 towards its desired end position, where the outer face of the mouth 114 is firmly supported by the inner face of the outer skirt 107.
  • the inner face of the mouth 114 is supported by the bulge 109d as well as the inner face of the top region 109a of the inner skirt 109.
  • the invention is not constrained to the described embodiment.
  • the shape of the different elements of the screw cap may be modified, in particular for adaptation to a different kind of container or if another plastics material is used.
  • the sealing properties as well as the ease of use may be both optimised at the same time by modifying the dimensions and shapes of the projections featured on the inner face of the head section, particularly of the inner and outer skirts and of the support structure for the inner skirt.
  • the flexibility of the inner skirt is enhanced if the radial cross-section of the inner skirt is reduced, if the segment angle of the support elements is reduced and/or if the height of the support elements is decreased.
  • annular bead arranged in between the inner and the outer circular skirt may be dispensed with.
  • the invention creates a screw cap that ensures easy closing and reclosing and reliable sealing of the container.

Landscapes

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

Claims (15)

  1. Bouchon fileté pour un conteneur (12 ; 112), le bouchon (1 ; 101) étant réalisé en un matériau plastique et comprenant
    a) une jupe circulaire interne (9 ; 109) prévue sur une face supérieure interne (2a ; 102a) du bouchon (1 ; 101), pour assurer l'étanchéité contre une face interne d'une ouverture (14 ; 114) du conteneur (12 ; 112) lorsque le bouchon (1 ; 101) est appliqué sur le conteneur (12 ; 112) ; et
    b) une structure de support (10, 11 ; 110, 111) prévue sur la face supérieure interne (2a ; 102a) du bouchon (1 ; 101), associée à la jupe interne (9 ; 109) ; et
    c) un jupe externe (7 ; 107) prévue sur la face supérieure interne (2a ; 102a) du bouchon (1 ; 101), disposée coaxialement autour de la jupe interne (9 ; 109) et distante d'une paroi latérale (3 ; 103) du bouchon (1 ; 101), pour assurer l'étanchéité contre une face externe de l'ouverture (14 ; 114) du conteneur (12 ; 112).
    caractérisé en ce que
    d) la structure de support (10, 11 ; 110, 111) comprend une pluralité d'éléments (10 ; 110) disposés à distance l'un de l'autre, où chacun de la pluralité d'éléments (10 ; 110) est formé et disposé de façon à être en contact par un segment associé de la jupe interne (9 ; 109) lorsque le bouchon (1 ; 101) est appliqué sur le conteneur (12 ; 112).
  2. Bouchon fileté tel que défini dans la revendication 1, caractérisé en ce que la pluralité d'éléments (10 ; 110) est disposée selon un espacement égal le long d'un cercle qui est coaxial avec et intérieur de la jupe interne (9 ; 109).
  3. Bouchon fileté tel que défini dans la revendication 2, caractérisé en ce que le nombre d'éléments (10 ; 110) est au moins de 8, de préférence de 12 ou davantage.
  4. Bouchon fileté tel que défini dans l'une des revendications 1 à 3, caractérisé en ce que la structure de support (10, 11 ; 110, 111) comprend une élévation annulaire (10 ; 110) prévue sur la face supérieure interne (2a, 102a) du bouchon (1 ; 101) sur laquelle est disposée la pluralité d'éléments (10 ; 110).
  5. Bouchon fileté tel que défini dans l'une des revendications 1 à 4, caractérisé en ce que chacun de la pluralité des éléments (10 ; 110) présente une face conique interne (10b), de telle sorte qu'une épaisseur radiale de l'élément (10 ; 110) diminue à partir de la face supérieure interne (2a ; 102a) du bouchon (1 ; 101).
  6. Bouchon fileté tel que défini dans l'une des revendications 1 à 5, caractérisé en ce qu'une hauteur de chacun de la pluralité d'éléments (10 ; 110) se situe entre la moitié de la hauteur de la jupe interne (9 ; 109) et la pleine hauteur de la jupe interne (9 ; 109), de préférence aux environs des 3/4 de la hauteur de la jupe interne (9 ; 109).
  7. Bouchon fileté tel que défini dans l'une des revendications 1 à 6, caractérisé en ce qu'une face externe de la jupe interne (9 ; 109) présente un bourrelet radial annulaire (9d ; 109d) pour venir en contact avec la face interne de l'ouverture (14 ; 114) du conteneur (12 ; 112).
  8. Bouchon fileté tel que défini dans la revendication 7, caractérisé en ce que chacun de la pluralité d'éléments (10 ; 110) se termine à une hauteur correspondant à une section conique inférieure (9c ; 109c) du bourrelet radial (9d ; 109d) de la jupe interne (9 ; 109).
  9. Bouchon fileté tel que défini dans la revendication 7 ou 8, caractérisé en ce que la jupe externe (9) aboutit à environ une hauteur correspondant à l'épaisseur de paroi maximum du bourrelet radial (9d) de la jupe interne (9).
  10. Bouchon fileté tel que défini dans l'une des revendications 1 à 8, caractérisé en ce qu'une hauteur de la jupe interne (109) est d'environ 2-4 fois une hauteur de la jupe externe (107).
  11. Bouchon fileté tel que défini dans l'une des revendications 1 à 10, caractérisé en ce qu'une section transversale radiale de la jupe externe (7 ; 107) est sensiblement constante, de telle sorte qu'une face interne ainsi qu'une face externe de la jupe externe (7 ; 107) sont sensiblement perpendiculaires à la face supérieure interne (2a ; 102a) du bouchon (1 ; 101).
  12. Bouchon fileté tel que défini dans l'une des revendications 1 à 11, caractérisé par un bourrelet annulaire (8 ; 108) prévu sur la face supérieure interne (2a ; 102a) du bouchon (1 ; 101), disposé coaxialement entre la jupe interne (9 ; 109) et la jupe externe (7 ; 107), pour venir en contact et assurer l'étanchéité contre un côté supérieur de l'ouverture (14; 114) du conteneur (12 ; 112).
  13. Bouchon fileté tel que défini dans l'une des revendications 1 à 12, caractérisé en ce que le matériau plastique est du polypropylène (PP).
  14. Bouchon fileté tel que défini dans l'une des revendications 1 à 13, caractérisé en ce qu'une première épaisseur d'une paroi supérieure (2 ; 102) du bouchon (1 ; 101), dans une région annulaire (2c) formant la jupe circulaire interne (9 ; 109) ainsi que la structure de support (10, 11 ; 110, 111), est supérieure à une seconde épaisseur de la paroi supérieure (2 ; 102) dans une région centrale (2b) du bouchon.
  15. Conteneur, en particulier une bouteille ou un pot, comprenant un bouchon fileté (1 ; 101), tel que défini dans l'une des revendications 1 à 14.
EP20040405512 2004-08-17 2004-08-17 Bouchon fileté pour conteneur Not-in-force EP1627821B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20040405512 EP1627821B1 (fr) 2004-08-17 2004-08-17 Bouchon fileté pour conteneur
DE602004006255T DE602004006255T2 (de) 2004-08-17 2004-08-17 Schraubverschluss für Behälter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040405512 EP1627821B1 (fr) 2004-08-17 2004-08-17 Bouchon fileté pour conteneur

Publications (2)

Publication Number Publication Date
EP1627821A1 EP1627821A1 (fr) 2006-02-22
EP1627821B1 true EP1627821B1 (fr) 2007-05-02

Family

ID=34932238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040405512 Not-in-force EP1627821B1 (fr) 2004-08-17 2004-08-17 Bouchon fileté pour conteneur

Country Status (2)

Country Link
EP (1) EP1627821B1 (fr)
DE (1) DE602004006255T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11591141B2 (en) 2020-07-08 2023-02-28 Veraseal Pty Limited Closures and vessels with closures

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080110851A1 (en) * 2006-10-13 2008-05-15 Owens-Illinois Closure Inc. Dual seal closure and package
GB2467355A (en) * 2009-01-30 2010-08-04 Beeson & Sons Ltd Container closure with pressure seal
DE102009044896B3 (de) * 2009-12-15 2011-05-26 Kunststofftechnik Waidhofen An Der Thaya Gmbh Verschlusskappe zum Verschließen eines Behältnisses
WO2013040621A1 (fr) * 2011-09-22 2013-03-28 Greiner Packaging Gmbh Fermeture à vis à maintien de l'étanchéité
DE102015111245A1 (de) * 2015-07-10 2017-01-12 Bericap Holding Gmbh Verschlusskappe mit optimiertem Innengewinde

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442947A (en) * 1983-01-18 1984-04-17 Continental White Cap, Inc. Plastic closure with sealing flaps
US4560077A (en) * 1984-09-25 1985-12-24 Sun Coast Plastics, Inc. Plastic closure cap
US6581792B1 (en) * 1998-12-07 2003-06-24 Tjandra Limanjaya Closure cap
GB2369114B (en) * 2000-11-21 2004-05-05 Beeson & Sons Ltd Plug seals for user-friendly cap assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11591141B2 (en) 2020-07-08 2023-02-28 Veraseal Pty Limited Closures and vessels with closures

Also Published As

Publication number Publication date
DE602004006255T2 (de) 2008-01-03
DE602004006255D1 (de) 2007-06-14
EP1627821A1 (fr) 2006-02-22

Similar Documents

Publication Publication Date Title
AU723140B2 (en) Plastic closure cap comprising a detachable annular guarantee band and an inner sealing
US7905820B2 (en) Closure
CN100436275C (zh) 广口容器的密合盖组件
RU2387590C2 (ru) Контейнер для напитков
US10723518B2 (en) Closure
US6491175B1 (en) Single piece closure for a pressurized container
EP0263699A2 (fr) Fermeture aérée pour boissons
US6102227A (en) Snap-on cap with twist on/off reclosure lid
US3987921A (en) Closure for containers
CA2630858A1 (fr) Joints a machoire pour ensembles de fermeture de recipient
US20210362910A1 (en) Tethered closure and container assembly
US7207453B2 (en) Closure and a container for packing products
EP1627821B1 (fr) Bouchon fileté pour conteneur
CN111051208A (zh) 封盖
AU776897B2 (en) Closure cap
KR200239531Y1 (ko) 포장용기 뚜껑
EP4134323A1 (fr) Capuchon de fermeture hermétique de récipients hermétiquement avec des produits sous pression et/ou gazéifiés
EP3770079A1 (fr) Dispositif de fermeture d'un col fileté d'un récipient fournissant des évidences d'altération
CA3110253A1 (fr) Fermeture a preuve d'effraction a accrochage et mise en prise de filet
CN201665357U (zh) 一体型瓶盖
WO2005070779A1 (fr) Capuchon de fermeture pour bouteilles
MXPA99009846A (en) Plastic closing cap with a separable safety seal and inner seal

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20060704

AKX Designation fees paid

Designated state(s): CH DE IT LI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: KELLER & PARTNER PATENTANWAELTE AG

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 602004006255

Country of ref document: DE

Date of ref document: 20070614

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: CH

Ref legal event code: AEN

Free format text: DAS PATENT IST AUFGRUND DES WEITERBEHANDLUNGSANTRAGS VOM 21.08.2007 REAKTIVIERT WORDEN.

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: CH

Effective date: 20070821

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20100715

Year of fee payment: 7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110831