EP4010263A1 - Capuchon à vis d'une fermeture rotative en matière plastique, pourvu d'un élément de liaison - Google Patents

Capuchon à vis d'une fermeture rotative en matière plastique, pourvu d'un élément de liaison

Info

Publication number
EP4010263A1
EP4010263A1 EP20746137.7A EP20746137A EP4010263A1 EP 4010263 A1 EP4010263 A1 EP 4010263A1 EP 20746137 A EP20746137 A EP 20746137A EP 4010263 A1 EP4010263 A1 EP 4010263A1
Authority
EP
European Patent Office
Prior art keywords
screw cap
connecting element
edge
tamper
guarantee
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.)
Pending
Application number
EP20746137.7A
Other languages
German (de)
English (en)
Inventor
Werner F. Dubach
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.)
Deltona Innovations AG
Original Assignee
Deltona Innovations AG
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 Deltona Innovations AG filed Critical Deltona Innovations AG
Publication of EP4010263A1 publication Critical patent/EP4010263A1/fr
Pending legal-status Critical Current

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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/16—Devices preventing loss of removable closure members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—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
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1008—Means for locking the closure in open position
    • 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
    • B65D2401/30—Tamper-ring remaining connected to closure after initial removal

Definitions

  • the present invention describes a screw cap of a plastic screw cap, comprising a cylindrical jacket wall with an internal thread and a screw cap edge, with a guarantee band being arranged opposite the screw cap edge and at least one connecting element made in one piece with the guarantee band and the jacket wall between the screw cap edge and an edge of the screw cap edge facing Guarantee band running and in an injection position, a closed position and a screwed position of the screw cap is not produced as part of the screw cap protruding radially from the central longitudinal axis and thus prevents the at least one connecting element from protruding radially in the injection position, the closed position and the screwed position of the screw cap is, while pivoting the at least one connecting element about a pivot axis perpendicular to the circumferential direction of the screw cap edge or the guarantee band erm and a plastic screw cap for a plastic container or a container made of a laminate with a screw cap.
  • Plastic screw caps as a closure device for various containers of liquids have long been known.
  • the containers to be sealed are soft packaging made from a film, a multilayer film or a coated cardboard box.
  • liquid containers made of various plastics, such as PET are also worth mentioning here.
  • Such containers are filled with still liquids or liquids charged with carbonic acid, sometimes high pressures of several bar above atmospheric pressure acting inside the container. Accordingly, the closures used must withstand these high pressures.
  • containers made of glass or metal are also equipped with plastic screw caps, with a screw cap being rotatably removable and attachable to a pouring spout.
  • Known plastic screw caps are composed of a pouring spout and a screw cap made of plastic.
  • the screw cap has an internal thread which can be effectively connected to an external thread on the pouring spout. After unscrewing and removing the screw cap, liquid can be drawn out of the container through the pouring nozzle.
  • a cutting device is rotatably and linearly propelled in the pouring spout, which cuts with a cutting edge through a mostly pre-perforated wall and / or foil of the container when the screw cap is first screwed on. In order to make it clear to the user whether the screw cap has already been unscrewed from the pouring spout, has been used for many
  • EP1976764 and EP2069211 are known.
  • Plastic screw cap with screw cap developed according to EP2308772.
  • connecting elements are connected to the screw cap edge and the tamper-evident band at transition sections and each have a plurality of differently oriented inclination sections which are oriented opposite to one another.
  • Such a constellation of connecting elements may briefly prevent the screw cap from being undesirably detached from the tamper-evident band after the first opening.
  • the connecting elements are too weak to withstand higher tensile forces and vary in length after the screw cap is screwed on and off several times, so that the connecting elements are no longer properly folded or pivoted between the screw cap edge and the guarantee band after a short time.
  • the connecting elements then protrude undesirably over the edge of the screw cap towards the longitudinal axis or outward, ie radially over. Even in the open position of the screw cap, only devices are known from the prior art, the captive screw cap interfering with pouring.
  • the present invention has set itself the task of improving a plastic screw cap or a screw cap of a plastic screw cap that remains captive in such a way that the at least one connecting element never protrudes undesirably radially from the screw cap edge after being screwed on and off several times.
  • the at least one connecting element is designed to be non-clampable in every rotational state.
  • Another effect is that the at least one connecting element can absorb higher tensile forces compared to the prior art.
  • the aim was to snap away the screw cap in such a way that, after the screw cap is in an open position, the screw cap can then be in a fixed folded-down position relative to the tamper-evident band and the pouring spout.
  • the at least one connecting element must not be torn off or damaged either during the industrial filling of containers or when the screw cap is screwed on and off.
  • the previous production methods by means of plastic injection molding should remain unchanged and a safe fastening of the plastic screw cap on the pouring spout should be made possible by machine.
  • the plastic screw cap should be able to be brought from a closed position via a screw position to an open position by rotating the screw cap from the pouring spout and then brought into a folded-down position, with a permanent connection between the screw cap and pouring spout, which is achieved by fastening it to the guarantee strip .
  • the plastic screw cap for various containers that can be achieved with such a screw cap has the features of claim 17.
  • FIG. 1 a shows a perspective view of part of a container with a plastic screw cap with the screw cap unscrewed and folded down, the screw cap being captive on the tamper-evident band.
  • Figure lb shows a view from above of the open screw cap according to Figure la, while
  • FIG. 1c shows a sectional view along the section line A-A from FIG. 1b with the screw cap folded down in the folded-down position.
  • FIG. 2a shows a side view of a plastic screw cap with the screw cap screwed in the open position onto a pouring spout, the connecting elements being pivoted to the maximum here.
  • FIG. 2b shows a sectional view of FIG. 2a, the retention of the tamper-evident band on a retention bead being clear.
  • Figure 3a shows a side view of a screw cap in a closed position, without a container
  • FIG. 3b shows a corresponding sectional view of the screw cap according to FIG. 3a.
  • FIG. 4 shows a perspective view of a screw cap in the injection position, which is produced by a tool in an injection molding machine, prior to assembly on a container.
  • FIGS. 5a and 5b show detailed views of two or three snap hinges formed in the course of a tamper-evident band recess section.
  • Figure 6a shows a perspective view of a screw cap for a laminate packaging in the injection position, while
  • FIG. 6b shows a side view of the screw cap according to FIG. 6a after the injection molding process before assembly and Figure 6c shows a perspective view of the screw cap in the closed position during assembly
  • Figure 7a shows a perspective view of the
  • FIG. 7b shows a side view of the screw cap according to FIG. 7a in an open position, before it is folded down into a folded-down position.
  • FIG. 8a shows a perspective view of a screw cap attached to a laminate in the folded-down position
  • FIG. 8b shows a side view of the situation from FIG. 8a
  • FIG. 8c shows a view from above, showing the situation from FIG. 8a, three connecting elements, each with a snap hinge per connecting element, are clearly visible.
  • FIG. 9 shows a sectional view of a further development of the screw cap, with two snap hinges per connecting element.
  • FIG. 10a shows a side view of a screw cap, with a cutting device being marked, which is able to safely separate a cohesively molded screw cap at the level of the connecting elements, while FIG. 10b shows a sectional view of the screw cap according to FIG. 10a. description
  • a plastic screw cap 2 is presented here, which comprises a screw cap 20 that can be screwed onto a suitable pouring spout 22 on or on a container 1.
  • Various containers 1 with container walls made of different materials and material mixtures are known, which can be provided with such plastic rotary closures 2 produced by means of plastic injection molding.
  • plastic screw caps 2 for bottle-like containers 1 made of glass or plastic are shown in FIGS. 1 to 5, while analogous plastic screw caps for containers 1 with single-layer walls or composite laminates are shown in slightly modified variants in FIGS. 6 to 10.
  • Spout nozzles 22 with a pouring nozzle wall 222 and an external thread 223 are configured on containers 1, a retaining bead 224 being arranged below the external thread 223, which can be effectively connected to a guarantee strip 21.
  • a collar 221 is provided, and in the case of laminate-like containers, a flange 221 is provided. Due to a flange 221, the folding movement of the screw cap 20 is different in both cases.
  • a retaining bead 224 is formed on the outer pouring spout wall 222 and secures the guarantee strip 21 formed on the screw cap 20 against a maximum linear displacement parallel to a longitudinal axis L of the plastic screw cap 2.
  • the guarantee strip 21 can correspondingly rotate about the longitudinal axis L of the plastic twist lock 2, but cannot be moved linearly parallel to the longitudinal axis L by more than a maximum deflection.
  • the screw cap 20 is formed so as to be rotatable around the pouring spout 22 and is designed in one piece with the guarantee strip 21 as an injection molded component and has a longitudinal axis L.
  • the guarantee strip 21 runs along a circumferential direction U and can be rotated along the circumferential direction U around the pouring spout 22.
  • Figures 1 show a screw cap 20 in a folded-down position relative to a tamper-evident band 21.
  • the screw cap 20 comprises an upper cover wall 200, a jacket wall 201 which merges into a screw cap rim 202 and an internal thread 204.
  • the screw cap 20 is between the screw cap rim 202 in one section Fastened in one piece to the guarantee strip 21 via at least one pivotable connecting element 23.
  • the at least one connecting element 23 is arranged to run between the screw cap 20 and the guarantee strip 21.
  • the at least one connecting element 23 has the shape of a plastic band and the screw cap 20 is completely manufactured with at least one connecting element 23 and guarantee band 21 in an injection molding process.
  • the screw cap 20 each comprises at least one snap hinge 24 along the at least one connecting element 23 and / or along the guarantee strip 21.
  • the at least one snap hinge 24 is arranged in such a way that it is not visible from the outside and on the surface of the guarantee strip pointing in the direction of the longitudinal axis L 21 or the at least one connecting element 23 is arranged. Above all, there must be at least one in no execution
  • the connecting element 23 protrudes radially from the guarantee strip 21 or the jacket wall 201 pointing away from the longitudinal axis L. Only then is it safe to mount the screw cap 20 on the The pouring spout 22 is possible and repeated unscrewing and screwing closed by folding down the screw cap 20 relative to the guarantee strip 21 and the pouring spout 22 can be achieved.
  • the screw cap 20 is shown again in the folded-down position.
  • a tamper-evident band recess section 210 is shown along the tamper-evident band 21 in the circumferential direction U, here between two side slits 213 which are cut out of the tamper-evident band 21.
  • the at least one snap hinge 24 runs along this tamper-evident band recess section 210.
  • a total of three connecting elements 23, 23 ', 23 are formed between the screw cap edge 202 and the tamper-evident band recess section 210.
  • three connecting elements 23, 23', 23 an inner central band 23 and two framing outer tightening bands 23 'surrounding the inner connecting element 23 in the circumferential direction U can be used.
  • More than two connecting elements 23, 23 ', 23" increase the snap action and make it impossible to tear off the screw cap 20 from the guarantee strip 21.
  • the at least one snap hinge 24 is here formed or partially cut out along the curved tamper-evident band recess section 210 on the surface of the tamper-evident band 21 pointing in the direction of the longitudinal axis L.
  • the snap hinge 24 thus points radially inward in the closed position of the screw cap 20 in the direction of the longitudinal axis L of the screw cap 20. In the folded-down position of the screw cap 20 shown in FIG. 1b, the snap hinge 24 points upwards.
  • the at least one snap hinge 24 comprises a first arcuate border line 240, a thinned area 241 and a second arcuate border line 243. Between the first and second Border line 240, 243 runs a virtual hinge axis 242.
  • the material is formed in the area of the thinned area 241 accordingly in the circumferential direction U of the tamper-evident band recess section 210 with a smaller material thickness than the rest of the snap hinge 24.
  • the tamper-evident band recess section 210 is curved along the circumferential direction U from the Guarantee band 21 left out.
  • a virtual hinge axis 242 is defined in the center of the thinned area 241.
  • the virtual hinge axis 242 runs at least approximately perpendicular to the longitudinal extension of the at least one connecting element 23 in the direction of the circumferential direction U.
  • the two side slits 213, the tamper-evident band recess section 210 are recessed. Since the thickness of the at least one connecting element 23 should be as great as possible, one or more recesses 234 in the form of openings are arranged along the at least one connecting element 23. The recesses 234 preferably completely traverse the at least one connecting element 23.
  • a tamper-evident band hinge section 231, a central web 232 and a screw cap edge section 233 can be defined along each connecting element 23.
  • the entire connecting element 23 is pivoted about an axis during the screwing process.
  • the pivot angle is indicated by dashed lines in the area of the guarantee hinge section 231 of the central central hinge 23.
  • the at least one recess 234 is in
  • Screw cap edge portion 233 arranged.
  • the virtual hinge axis 242 and the direction of rotation U run at least approximately parallel.
  • the sectional view according to FIG. 2b through the plastic twist lock 2 at the level of the tamper-evident band recess section 210 shows once again that the internal thread 204 is no longer in engagement with the external thread 223 in the open position.
  • the connecting element 23 is covered by the jacket wall 201 and the guarantee strip 21 or the outer surface of the at least one connecting element 23 is aligned with the outside surface of the jacket wall 201 and the outside surface of the guarantee strip 21.
  • a circumferential cap retaining means 205 along the screw cap edge 202 and a circumferential tape retaining means compatible with it 214 along an edge of the guarantee strip 21 on the screw cap side are indicated here.
  • the retaining web 205 engages in the engaging web 214 only in the closed position of the screw cap 20.
  • the distance between the screw cap 20 and the edge of the guarantee strip 21 on the screw cap side is minimal.
  • the at least one connecting element 23 is pivoted maximally in the direction of the circumferential direction U.
  • An angle between 20 ° and 60 ° is included between the longitudinal direction of the at least one connecting element 23 and the circumferential direction U of the screw cap edge 202 and the screw cap-side edge of the guarantee band 21.
  • the circumferential cap retaining means 205 and the circumferential tape retaining means 214 are preferably fastened and releasably hooked. Since that is at least one
  • Connecting element 23, 23 ', 23 ′′ has a pretension, the screw cap 20 is held securely fastened in the closed position to the guarantee strip 21. Between the closed position and the open position there are different screw positions with screw cap 20 screwed on and off to different extents.
  • the at least one connecting element 23 is always between the screw cap edge 202 and the guarantee strip 21. A protrusion in the radial direction away from the longitudinal axis L does not occur in these positions. Since the screw cap 20 is produced in one piece in a plastic injection molding process, the screw cap 20 has an injection molding position in the same way as it is produced in the injection molding tool in an injection molding machine. The preferred injection molding position is shown in FIG. The screw cap 20 is held at a distance from the guarantee strip 21 by the at least one connecting element 23, three connecting elements 23, 23 ', 23 "being particularly preferred.
  • the distance between the screw cap edge 202 and the screw cap-side edge of the guarantee strip 21 is clearly visible and is located between a distance in the closed position and the open position of the screw cap 20.
  • the pivoting angle of the connecting elements 23, 23 ', 23 is greater than in the closed position and smaller than in the open position of the screw cap 20.
  • the circumferential cap retaining means 205 and circumferential tape retaining means 214 are not in Intervention.
  • the connecting elements 23, 23 ', 23 are not pretensioned in the injection position.
  • the retaining means 205, 214 are preferably only brought into engagement during assembly on the pouring spout 22 and thus the screw cap 20 can be fastened with pretensioned connecting elements 23, 23', 23".
  • the screw cap 20 and the guarantee strip 21 can still be pushed together in the longitudinal direction in the injection molding machine or only shortly before they are applied to the pouring spout 22.
  • FIG. 5a is a preferred embodiment with two aligned snap hinges 24, 24' and in FIG. 5b correspondingly three snap hinges 24, 24 ', 24 "shown.
  • the virtual hinge axes 242 all run along the circumferential direction U and merge into one another.
  • a modified snap hinge 24 can be arranged along the at least one connecting element 23.
  • the screw caps 20 shown in FIGS. 6 to 9 each have corresponding connecting elements 23, here likewise preferably three selected connecting elements 23, 23 ′, 23 ′′
  • Each connecting element 23 has one
  • Guarantee band hinge section 231 a central web 232 and a screw cap edge section 233. As in the spray position of the
  • Screw cap 20 preferred is a distance between
  • Screw cap edge 202 and screw cap-side edge of the guarantee strip 21 left a gap and screw cap 20 and
  • the tamper-evident band 21 are kept at a distance from one another by the connecting elements 23, 23 ', 23 "
  • Connecting elements 23, 23 ', 23 "and the direction of rotation U correspond to that described above. Since the snap hinges 24 in the connecting elements 23, 23', 23" are arranged on the surface facing the longitudinal axis L, the snap hinges 24 or their virtual hinge axes 242 indicated with dashed lines. Here, too, the virtual hinge axis 242 runs approximately parallel to the circumferential direction U of the screw cap 20 or the guarantee strip 21.
  • the snap hinges 24 are preferably in the The respective screw cap edge section 233 is arranged on the end of the connecting element 23 facing the screw cap 20 or the screw cap edge 202. In the injection position according to FIGS.
  • the circumferential direction U of the guarantee strip 21 is greater in the injection position than in the closed position of the screw cap 20 according to FIG. 6c.
  • the design of the at least one snap hinge 24 along the at least one connecting element 23 corresponds to the features already mentioned above. Along the longitudinal direction of the at least one connecting element 23 at the level of the
  • Screw cap edge section 233 has a thinned area 241 which is framed by a first arcuate border line 240 and a second arcuate border line 243 so that a virtual hinge axis 242 is at least approximately perpendicular to the longitudinal extension of the at least one connecting element 23 in the direction of the circumferential direction U through the thinned area 241 runs.
  • the snap hinge 24 is on the The surface of the connecting element 23 is arranged which faces the longitudinal axis L of the screw cap 20 or the guarantee strip 21. The snap hinge 24 cannot therefore be attacked from the outside.
  • the snap hinge 24 is arranged in each case on the screw cap edge section 233 facing the screw cap, so that after pivoting the connecting elements 23, 23 ', 23 "when opening in the open position, the widest possible folding movement is possible.
  • Screw cap edge portion 233 arranged.
  • a driver is arranged in the interior of the screw cap 20 and can be operatively connected to a cutting device in the interior of the spout 22. Further details of the cutting device are indicated in Figure 6c and in the open position of the screw cap 20 according to Figure 7b is part of the
  • the connecting elements 23, 23 ', 23 are pivoted to the maximum in the open position of the screw cap 20 and the pivoting angle between the circumferential direction U and the longitudinal direction of the connecting elements 23, 23', 23" is maximum.
  • the at least one connecting element 23, 23 ', 23 is pivoted in the closed position of the screw cap 20 at an angle between 20 ° and 60 ° inclined to the screw cap edge 202 or the direction of rotation of the guarantee strip 21. In the injection position of such a screw cap, this pivot angle is greater, whereby also here one Pretensioning results after the screw cap 20 has been mounted on the pouring spout 22 in the at least one connecting element 23, 23 ′, 23 ′′.
  • the connecting element 23, 23 ′, 23 ′′ is perpendicular to the circumferential direction U of the screw cap edge 202 or of the guarantee strip 21 in all embodiments.
  • the screw cap 20 is shown in the folded-down position, that is, after the screw cap 20 has been rotated into the open position, the connecting elements 23, 23 ', 23 "being pivoted, which can now be folded down along their snap hinges 24 together with the screw cap 20.
  • the screw cap 20 rests parallel with its upper cover wall 200 on the laminate surface. Since the total length of the at least one connecting element 23 between the guarantee strip 21 and the screw cap edge 202 is selected to be so long that it is greater than a height 2040 of the internal thread 204 of the If the screw cap 20 is, this can result in the screw cap 20 snapping in.
  • the arcuate boundary lines 240, 243, the thinned area 241 and the virtual hinge axis 242 are each
  • Snap hinge 24 can be seen.
  • the two outer connecting elements 23', 23 " have the function of tensioning straps.
  • the middle connecting element 23 is folded over as a central band 23 in the folded-down position and a stable position of the screw cap 20 is achieved.
  • further snap hinges 24 ' can be arranged in the course of each connecting element 23, 23', 23 "on the surface facing the longitudinal axis L.
  • the virtual hinge axes 242 here also run parallel to the circumferential direction U and parallel to one another.
  • At least one recess 234 is also cut out along the connecting elements 23, 23', 23", as already described above.
  • the screw caps 20 can preferably also be injected in a closed position in an injection molding process.
  • the screw cap 20, connecting elements 23, 23 ′, 23 ′′ and the guarantee band 21 are firmly connected to one another by material.
  • This screw cap 20 is then subjected to a cutting process at one point in time in order to separate the guarantee band 21 from the screw cap 20.
  • This process is in FIG 10 indicated by a dashed cutting device which separates the guarantee band 21 from the screw cap edge 202 along a cutting line S. The cut is made just above the cap-side edge of the guarantee band 21. So that the connecting elements 23, 23 ', 23 "are not accidentally severed during this cutting process or are injured, the tamper-evident band hinge section 231 of the at least one connecting element 23, 23 ', 23 "is radial in the direction
  • Screw cap center or longitudinal axis L designed set back.
  • This setback F can be implemented by means of a reduced wall thickness, by means of folding, at least one kink and / or by means of a loop formation along the connecting element 23, 23 ', 23 "in the area of the tamper-evident band hinge section 231, as shown in FIGS can of course also be arranged with screw caps with at least one snap hinge 24 along the tamper-evident band recess section 210.
  • the snap hinges 24 on the connecting elements 23, 23 ', 23 "and in the course of the described here Guarantee band recess section 210 comprising the same features.
  • the arcuate border lines 240, 243 are arranged in an arc shape relative to the virtual hinge axis 242.
  • the thinned area 241 has an arcuate surface on two sides, which is arranged on the side of the connecting elements 23, 23 ', 23 "or the guarantee strip 21, which points to the longitudinal axis L. A parallel configuration of the border lines would not be sufficient
  • the arcuate border lines 240, 243 are preferably designed approximately mirror-symmetrically to the virtual hinge axis 242. Due to the shape of the thinned area 241 with the arcuate border lines 240, 243 arranged mirror-symmetrically to each other, such snap hinges 24 can also be referred to as "butterfly hinges" become.
  • a screw cap 20 that is as compact as possible should be achieved, for which the at least one connecting element 23 can preferably be accommodated at least partially in a recessed screw cap niche 203 and a recessed tamper-evident band niche 212.
  • the connecting element 23, 23 ′, 23 ′′ lies at least partially in these niches 203, 212, at least in the closed position of the screw cap 20, which can be seen, for example, in FIGS. 3a and 6c.
  • the minimum thickness of the connecting elements 23, 23 ′, 23 ′′ is preferably designed to be as great as the wall thickness of the guarantee strip 21 or the jacket wall 201 of the screw cap 20.
  • circumferential cap retaining means retaining web along screw cap edge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un capuchon à vis (20) ayant un bord de capuchon à vis (202), une bande inviolable (21) étant disposée en vis-à-vis du bord du capuchon à vis (202), et au moins un élément de liaison (23), s'étendant entre le bord de capuchon à vis (202) et un bord de la bande inviolable (21) faisant face au bord du capuchon à vis (202), est réalisé en tant que partie du capuchon à vis (20), l'au moins un élément de liaison (23) étant réalisé d'un seul tenant avec la bande inviolable (21) et une paroi latérale (201), ainsi l'au moins un élément de liaison ne dépasse jamais de manière indésirable dans le sens radial à l'opposé du bord de capuchon à vis (202) même après que le capuchon à vis ait été vissé et dévissé à de multiples reprises et, une fois ouvert, le capuchon à vis ne gêne pas le versement. A cet effet, le long du ou des éléments de liaison (23), au moins une charnière à déclic (24) est formée sur une partie de bord de capuchon à vis (233) faisant face au bord du capuchon à vis (202), ladite au moins une charnière à déclic s'étendant sur la surface dudit au moins un élément de liaison (23) qui fait face à l'axe longitudinal central (L) et/ou au moins une charnière à déclic (24) est formée sur la bande inviolable (21) le long d'une partie d'évidement incurvée de bande inviolable, ladite charnière à déclic s'étendant sur la surface de la bande inviolable (21) qui est tournée vers l'axe longitudinal (L).
EP20746137.7A 2019-08-09 2020-07-21 Capuchon à vis d'une fermeture rotative en matière plastique, pourvu d'un élément de liaison Pending EP4010263A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00999/19A CH716488A2 (de) 2019-08-09 2019-08-09 Schraubkappe eines Kunststoffdrehverschlusses mit Verbindungselement.
PCT/EP2020/070571 WO2021028167A1 (fr) 2019-08-09 2020-07-21 Capuchon à vis d'une fermeture rotative en matière plastique, pourvu d'un élément de liaison

Publications (1)

Publication Number Publication Date
EP4010263A1 true EP4010263A1 (fr) 2022-06-15

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EP20746137.7A Pending EP4010263A1 (fr) 2019-08-09 2020-07-21 Capuchon à vis d'une fermeture rotative en matière plastique, pourvu d'un élément de liaison

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Country Link
EP (1) EP4010263A1 (fr)
CH (1) CH716488A2 (fr)
WO (1) WO2021028167A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021112532A1 (de) * 2021-05-12 2022-11-17 Bericap Holding Gmbh Stegfreie, angebundene Verschlussvorrichtung
EP4098574A1 (fr) * 2021-06-03 2022-12-07 SIG Combibloc Services AG Fermeture d'un récipient à première ouverture à contrôle
US11634255B1 (en) 2021-10-19 2023-04-25 Helen Of Troy Limited Condiment bottle
USD1011835S1 (en) 2021-10-19 2024-01-23 Helen Of Troy Limited Condiment bottle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785264B1 (fr) * 1998-10-29 2001-01-05 Crown Cork & Seal Tech Corp Dispositif de bouchage
EP1322523B1 (fr) 2000-10-03 2008-11-26 Bericap Holding GmbH Dispositif de fermeture en plastique dote d'un perforateur
US8020729B2 (en) 2005-11-07 2011-09-20 Deltona Innovations Ag Closable opening device produced with a semifinished product and method of fitting the same
US8152015B2 (en) 2006-09-26 2012-04-10 Deltona Innovations Ag Semi-finished product for producing a plastic closure from two parts
KR101422326B1 (ko) 2008-07-08 2014-07-22 니혼 클로져 가부시키가이샤 합성 수지제 용기 뚜껑
JP5330921B2 (ja) * 2009-07-30 2013-10-30 日本クロージャー株式会社 合成樹脂製容器蓋
JP5520768B2 (ja) * 2010-09-30 2014-06-11 日本クロージャー株式会社 合成樹脂製容器蓋

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CH716488A2 (de) 2021-02-15
WO2021028167A1 (fr) 2021-02-18

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