EP4299462A1 - Élément de fermeture attaché pour récipients et récipient comprenant un tel élément de fermeture - Google Patents

Élément de fermeture attaché pour récipients et récipient comprenant un tel élément de fermeture Download PDF

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Publication number
EP4299462A1
EP4299462A1 EP23181899.8A EP23181899A EP4299462A1 EP 4299462 A1 EP4299462 A1 EP 4299462A1 EP 23181899 A EP23181899 A EP 23181899A EP 4299462 A1 EP4299462 A1 EP 4299462A1
Authority
EP
European Patent Office
Prior art keywords
cap
closure element
neck
container
safety ring
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
EP23181899.8A
Other languages
German (de)
English (en)
Inventor
Marco Maria Carlo RIZZARDI
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.)
Capsulit SpA
Original Assignee
Capsulit SpA
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 Capsulit SpA filed Critical Capsulit SpA
Publication of EP4299462A1 publication Critical patent/EP4299462A1/fr
Pending legal-status Critical Current

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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

Definitions

  • the present invention relates to a tethered closure element for containers and to a related container comprising such a closure element.
  • connecting elements between the cap and the safety ring.
  • These connecting elements consist, for example, of partly pre-cut annular bands which, when the cap is unscrewed from the neck of the container, stretch out, allowing the cap to be removed from the neck while keeping it attached to the container via the safety ring.
  • Patent document WO 2021146080 A1 describes a tethered type closure that has a cap, designed to couple with the neck of a container, and a safety ring, connected to the cap and engaged with a rib in the neck of the container, known in jargon as a lip.
  • the closure in order to connect the cap to the safety ring, the closure has two annular bands obtained cutting the safety ring itself, giving rise to two deformable arms. When the cap is opened, these arms extend and twist, thus allowing the cap to be tipped, which remains attached to the neck.
  • the closure element described in WO 2021146080 A1 has a rigid structure that results in poor handling of the closure element by a user.
  • the main task of the present invention is to realise a tethered closure element for containers that overcomes the drawbacks of the above-mentioned known technique.
  • a further aim of the present invention is to realise a tethered closure element for containers, and a container comprising this closure element, that are simple and inexpensive to manufacture, while still complying with the environmental guidelines for single-use plastics.
  • Another purpose of the invention is to realise a tethered closure element for containers, and a related container, that is resistant.
  • a closure element 1 for containers 100 forms part of the present invention.
  • the closure element 1 described below is of the type tethered to the container 100.
  • FIG. 1a a first embodiment of the closure element 1 according to the present invention is shown in figures 1-6a .
  • FIG. 7-13a A second embodiment of the closure element 1 according to the present invention is shown in Figures 7-13a .
  • the closure element 1 for containers 100 comprises a cap 2 comprising a substantially cylindrical inner wall 20.
  • the inner wall 20 is threaded and is configured to couple with an externally threaded portion 101 of a neck 102 of a container 100.
  • the closure element 1 further comprises a safety ring 3 configured to fit around the neck 102 and shaped to be retained below a lip 103 of the neck 102 of the container 100.
  • a safety ring 3 configured to fit around the neck 102 and shaped to be retained below a lip 103 of the neck 102 of the container 100.
  • the term lip refers to an abutment of the neck 102 of the container 100, which is radially projecting outwards, located below the externally threaded portion 101.
  • the safety ring 3 and cap 2 are spaced apart from each other.
  • the safety ring 3 has a slot 30 extending through a first arc of circumference.
  • the first arc of a circumference is intended with reference to the circumference of the safety ring 3, i.e. it is an arc of circumference defined as a part of the entire circumference on which safety ring 3 develops.
  • the first arc of circumference subtends an angle greater than 180° and less than 270°.
  • the slot 30 extends mainly along a circumferential development direction K, shown for simplicity only in figures 2 and 7-8 .
  • the slot 30 also extends along a direction perpendicular to the plane in which the circumferential development direction K lies.
  • the slot 30 is a through-hole formed on the safety ring 3.
  • the slot 30 partially subdivides the safety ring 3 into a lower band 31 and an upper band 32 separated from the lower band 31.
  • the upper band 32 is distanced from the lower band 31 by the presence of the slot 30, which is interposed between the upper band 32 and the lower band 31.
  • the upper band 32 defines, with the slot 30, two arms 33 connected to the cap 2.
  • the cap 2 is configured to switch between a closing configuration in which it is coupled to the neck 102 of the container 100 and an opening configuration in which it is uncoupled from the neck 102.
  • the internal threaded wall 20 of the cap 2 is not engaged with the externally threaded portion 101 of the neck 102 in the opening configuration, while it is engaged with the externally threaded portion 101 of the neck 102 in the closing configuration.
  • the closure element 1 in the closing configuration is shown in figures 1-8 and 12-13a .
  • the closure element 1 in the opening configuration is shown in figures 9-11 .
  • the slot 30 is configured to allow a deformation of the two arms 33 to allow coupling and/or uncoupling of the cap 2 with/from the neck 102 in the passage from the closing configuration to the opening configuration and vice versa.
  • the presence of the slot 30 increases the mobility of the arms 33, giving them greater flexibility. This allows a user to easily manoeuvre the cap 2 between the closing configuration and the opening configuration and vice versa.
  • the arms 33 extend along two respective arcs of circumference belonging to the same circumference, as can be seen in figures 8 and 13 .
  • the two arms 33 are deformed when cap 2 is in the opening configuration.
  • the deformation of the two arms 33 is at least partly elastic.
  • the cap 2 although uncoupled from the neck 102, remains constrained to the neck 102.
  • the arms 33 are deformed, especially twisted and extended, and thus enable the cap 2 to be tilted.
  • the lower band 31 extends for an arc of circumference equal to the first arc of circumference.
  • the arms 33 extend for a second arc of circumference having a length less than the length of the first arc of circumference.
  • the second arc of circumference subtends a smaller angle than that subtended by the first arc.
  • the safety ring 3 also has a side band 6 that extends seamlessly from the upper band 32 and the lower band 32 for a third arc of circumference explementary to the first arc.
  • the side band 6 has a height that is substantially equal to the sum of the heights of the lower band 31, the slot 30 and the upper band 32, i.e. of the arms 33.
  • the slot 30 has a height that can be constant or greater in some sections and lesser in others.
  • the slot 30 has a maximum height H1 that is comprised between 5% and 40% of the height H2 of the safety ring 3. More preferably, the slot 30 has a maximum height H1 that is between 10% and 300 of the height H2 of the safety ring 3. Still preferably, the slot 30 has a maximum height H1 that is equal to 20% of the height H2 of the safety ring 3.
  • the maximum height H1 of the slot 30 is 1 mm.
  • the cap 2 is away from the side band 6 of the safety ring 3.
  • the cap 2 is unscrewed/screwed by rotation in relation to its central axis J.
  • the cap 2 pulls the safety ring 3 with it by means of the arms 33, which deform and extend.
  • the safety ring 3 rises upwards until it abuts with the lip 103 below, remaining retained around the neck 102.
  • the cap 2 can be unscrewed from the neck 102 of the container 100 in such a way that the safety ring 3 still remains engaged with the lip 103, and in such a way that the cap 2 is not separated from the container 100, due to the presence, in the retaining ring 3, of abutment elements 300 configured to engage with the lip 103 at the bottom.
  • the abutment elements 300 can take the form of a circumferential rib 310, visible in figure 6a , which extends seamlessly around the entire circumference of the safety ring 3 to generate an undercut.
  • the safety ring 3 comprises a plurality of internal tabs 320, visible in figures 12a, 12b and 13a .
  • These tabs 320 extend upwards and inwards from the lower band 31, along the entire circumference of the safety ring 3.
  • each tab 320 comprises a heel 301 configured abut against the lip 103.
  • the tabs 320 are partly facing the slot 30.
  • the cap 2 preferably has a symmetrical structure with respect to a plane passing through its central axis J.
  • the cap 2 comprises a tooth 21 that extends below the inner wall 20.
  • the tooth 21 extends, preferably circumferentially, away from the inner wall 20.
  • the tooth 21 is interposed between the two arms 33.
  • the tooth 21 is configured to abut against the externally threaded portion 101 of the neck 100 when the cap 2 is in the opening configuration.
  • the tooth 21 defines a maximum opening angle ⁇ of the cap 2, where this maximum opening angle ⁇ is less than 180°.
  • the maximum opening angle ⁇ is defined by the inclination of the base of the cap 2 with respect to a plane K' parallel to the plane in which the circumferential development direction K lies, as shown in figure 9 .
  • the upper band 32 comprises for each arm 33 a junction bridge 34 between the end of the respective arm 33 and the cap 2.
  • the cap 2 therefore always remains connected to the neck 102 of the container 100 via bridges 34, and therefore arms 33.
  • each bridge 34 is connected to the cap 2 laterally to the tooth 21, if provided.
  • the arms 33 and the bridges 34 ensure that the cap 5 is never separated from the container 100, keeping it constrained to the neck 102 by the safety ring 3.
  • junction bridges 34 are separated from the tooth 21 by two respective gaps 35.
  • the bridges 34 extend transversally to the plane in which the circumferential development direction K lies when the cap 2 is in the closing configuration.
  • the bridges 34 extend substantially orthogonally to the plane in which the circumferential development direction K lies when the cap 2 is in the closing configuration.
  • the gaps 35 partly define the slot 30.
  • the slot 30 and the gaps 35 form, when the cap 2 is in the closed configuration, a single space that is enclosed between the base of the cap 2, the tooth 21, the arms 33 and the lower band 31.
  • the closure element 1 comprises first frangible joining elements 4 placed at the slot 30.
  • the first frangible joining elements 4 are in particular connecting the upper band 32 and the lower band 31 and are configured to break at a first passage of the cap 2 from the closing configuration to the opening configuration.
  • the first frangible joining elements 4 are placed transversely to the plane in which the development direction K lies and are configured to break on a first passage of the cap 2 from the closing configuration to the opening configuration.
  • the first frangible joining elements 4 are placed substantially orthogonally to the plane in which the development direction K lies.
  • the closure element 1 in addition to the first frangible joining elements 4, comprises second frangible joining elements 5.
  • the second frangible joining elements 5 are a connection between the cap 2 and the safety ring 3 and are configured to break on a first passage of the cap 2 from the closing configuration to the opening configuration.
  • the second frangible joining elements 5 are placed transversely to the plane in which the development direction K lies.
  • the second frangible joining elements 5 are placed substantially orthogonally to the plane in which the development direction K lies.
  • the second frangible joining elements 5 are preferably arranged evenly between the cap 2 and the safety ring 3, above the arms 33, except at the bridges 34.
  • the cap 2 prior to a first opening, is connected at the bottom to the safety ring 3 by means of both the second frangible joining elements 5 and the bridges 34.
  • the cap 2 is connected to the safety ring 3 exclusively via the bridges 34.
  • a rotation of the cap 2 about its central axis J, in the unscrewing direction causes a displacement of the whole closing element 1 upwards in an axial direction, until the abutment elements 300 abut with the lip 103 of the neck 102 of the container 100, retaining the safety ring 3 until the second frangible joining elements 5 are completely broken.
  • the closure element 1 includes at least one dragging tooth 7. This dragging tooth 7 is connected to the cap 2.
  • the dragging tooth 7 protrudes axially from the cap 2 towards the safety ring 3 and is configured to abut with the safety ring 3.
  • the retaining ring 3 has a protrusion 9 projecting in an axial direction towards the cap 2, which is configured to abut with the dragging tooth 7.
  • the dragging tooth 7 preferably extends seamlessly from the cap 2, similarly to the tooth 21, and has a pointed shape.
  • the closure element 1 comprises two or more dragging teeth 7. More preferably, the closure element 1 comprises three dragging teeth 7, two of which are located at the arms 33, as illustrated for example in figures 1, 3 and 4 , and one at the tooth 21, as illustrated for example in figure 2 .
  • the safety ring 3 has a recess 8 in the upper portion of the arm 33 at the dragging tooth 7. This recess 8 defines the protrusion 9 with one of its walls.
  • a container 100 comprising the closure element 1 described above also forms part of the present invention.
  • the container 100 has a neck 102 having an externally threaded portion 101 to be coupled with the substantially cylindrical threaded inner wall 20 of the cap 2.
  • the container 100 also has a lip 103 that retains the safety ring 3 of the closure element 1 at the bottom.
  • the tethered closure element 1 for containers 100 of the type tethered to the container 100 thus conceived, and the container 100 comprising such closure element 1, are susceptible to numerous modifications and variations all within the scope of the inventive concept.
  • any materials can be used according to requirements, as long as they are compatible with the specific use, the dimensions and the contingent shapes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP23181899.8A 2022-06-28 2023-06-27 Élément de fermeture attaché pour récipients et récipient comprenant un tel élément de fermeture Pending EP4299462A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202200013648 2022-06-28

Publications (1)

Publication Number Publication Date
EP4299462A1 true EP4299462A1 (fr) 2024-01-03

Family

ID=83270842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23181899.8A Pending EP4299462A1 (fr) 2022-06-28 2023-06-27 Élément de fermeture attaché pour récipients et récipient comprenant un tel élément de fermeture

Country Status (1)

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EP (1) EP4299462A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402901A (en) * 1993-02-09 1995-04-04 Le Moulage Automatique Closure device for a recipient
WO2021013370A1 (fr) * 2019-07-23 2021-01-28 Obrist Closures Switzerland Gmbh Bouchon
WO2021068058A1 (fr) * 2019-10-11 2021-04-15 Husky Injection Molding Systems Ltd. Dispositif de fermeture pour contenant
DE202021101375U1 (de) * 2020-03-19 2021-06-22 United Caps France Verschluss für Behälter mit Gewindehals, der mit einem Eingriffblockierelement versehen ist
WO2021146080A1 (fr) 2020-01-16 2021-07-22 Closure Systems International Inc. Emballage à fermeture attachée

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402901A (en) * 1993-02-09 1995-04-04 Le Moulage Automatique Closure device for a recipient
WO2021013370A1 (fr) * 2019-07-23 2021-01-28 Obrist Closures Switzerland Gmbh Bouchon
WO2021068058A1 (fr) * 2019-10-11 2021-04-15 Husky Injection Molding Systems Ltd. Dispositif de fermeture pour contenant
WO2021146080A1 (fr) 2020-01-16 2021-07-22 Closure Systems International Inc. Emballage à fermeture attachée
DE202021101375U1 (de) * 2020-03-19 2021-06-22 United Caps France Verschluss für Behälter mit Gewindehals, der mit einem Eingriffblockierelement versehen ist

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