EP4299460A1 - Öffnungsvorrichtung für eine verpackung und verpackung damit - Google Patents

Öffnungsvorrichtung für eine verpackung und verpackung damit Download PDF

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Publication number
EP4299460A1
EP4299460A1 EP23180688.6A EP23180688A EP4299460A1 EP 4299460 A1 EP4299460 A1 EP 4299460A1 EP 23180688 A EP23180688 A EP 23180688A EP 4299460 A1 EP4299460 A1 EP 4299460A1
Authority
EP
European Patent Office
Prior art keywords
cutter
opening device
collar
retaining
flow channel
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
EP23180688.6A
Other languages
English (en)
French (fr)
Inventor
Marco INSERO
Chiara CAVAZZUTI
Angelo Sorbara
Davide Corradi
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP4299460A1 publication Critical patent/EP4299460A1/de
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
    • 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

Definitions

  • the present invention relates to an opening device for a package, in particular for a composite package, filled with a pourable product, even more particular filled with a pourable food product.
  • the present invention also relates to a package having a main body filled with a pourable product, even more particular filled with a pourable food product, and an opening device arranged on the main body.
  • liquid or pourable food products such as fruit juice, UHT (ultra-high-temperature treated) milk, wine, tomato sauce, etc.
  • UHT ultra-high-temperature treated milk
  • wine tomato sauce
  • etc. are sold in packages made of composite packaging material.
  • a typical example is the parallelepiped-shaped package for pourable food products known as Tetra Brik Aseptic (registered trademark), which is made by sealing and folding a laminated strip packaging material.
  • the packaging material has a multilayer structure comprising a carton and/or paper base layer, covered on both sides with layers of heat-seal plastic material, e.g. polyethylene.
  • the packaging material also comprises a layer of oxygen-barrier material, e.g. an aluminum foil, which is superimposed on a layer of heat-seal plastic material, and is in turn covered with another layer of heat-seal plastic material forming the inner face of the package eventually contacting the food product.
  • Some of the known packages in particular a respective sealed main body of the packages formed from the packaging material, comprises a designated pour opening, which allows the outpouring of the pourable product from the package.
  • the designated pour opening is covered by a separation membrane, which isolates an inner space of the main body from an outer environment and which is to be opened or to be removed or to be ruptured or to be cut or to be pierced prior to the first outpouring of the pourable product.
  • an opening device having a collar and a closure on the main body about the designated pour opening so as to be able to control the outpouring of the pourable product out of the main body and through the collar. Therefore, the collar has a pouring outlet so as to allow for a controlled outpouring of the pourable product from the package and the closure allows to selectively close and open the pouring outlet.
  • Some of the known opening devices comprise a cutter so as to break the separation membrane covering the designated pour opening in a controlled manner.
  • an opening device according to the independent claim.
  • Number 1 indicates as a whole a package, in particular a composite package, comprising:
  • Main body 2 may be obtained from a multilayer packaging material, in particular being provided in the form of a web.
  • the packaging material may comprise at least a layer of fibrous material, such as e.g. a paper or cardboard, and at least two layers of heat-seal plastic material, e.g. polyethylene, interposing the layer of fibrous material in between one another.
  • One of these two layers of heat-seal plastic material may define an inner face of main body 2 contacting the pourable product.
  • the packaging material may also comprise a layer of gas- and light-barrier material, e.g. aluminum foil or ethylene vinyl alcohol (EVOH) film, in particular being arranged between one of the layers of the heat-seal plastic material and the layer of fibrous material.
  • the packaging material may also comprise a further layer of heat-seal plastic material being interposed between the layer of gas- and light-barrier material and the layer of fibrous material.
  • each opening device 3 is applied to the respective main body 2 prior, during or after forming, filling and sealing of the respective main body 2 by means of a molding process and/or adhesive bonding and/or ultrasonic bonding and/or welding.
  • each opening device 3 can be applied onto the packaging material prior to arranging the packaging material within or during advancement of the packaging material within a packaging machine for forming, filling and sealing the respective main body 2 from the packaging material.
  • main body 2 may contain a pourable food product such as water, milk, milk-based drinks, yoghurt drinks, coffee-based drinks, fruit juice, beverages with pulp, tomato sauce, salt, sugar and the like.
  • a pourable food product such as water, milk, milk-based drinks, yoghurt drinks, coffee-based drinks, fruit juice, beverages with pulp, tomato sauce, salt, sugar and the like.
  • main body 2 may extend along a central (longitudinal) axis A.
  • package 2 may comprise a first wall 4, in particular being transversal, even more particular perpendicular, to central axis A, from which main body 2 extends along central axis A.
  • first wall 4 may define a supporting surface of package 2, which, in use, can be put in contact with a support element, such as e.g. a shelf, when, in use, being e.g. exposed within a sales point, placed within a storage chamber, placed within a refrigerator or similar.
  • first wall 4 when being arranged on a support element first wall 4 may define a bottom wall.
  • main body 2 may also comprise a side wall 5 being (fixedly) connected to first wall 4 and extending from first wall 4.
  • main body 2 may also comprise a second wall 6 opposite to first wall 4 and being (fixedly) connected to side wall 5.
  • side wall 5 may be interposed between first wall 4 and second wall 6.
  • second wall 6 may define a top wall.
  • first wall 4 and second wall 6 may be parallel to one another.
  • first wall 4 and second wall 6 may be inclined with respect to one another.
  • second wall 6 may define a slanted-top or a gable-top.
  • second wall 6 may comprise the designated pour opening.
  • main body 2 may comprise a separation membrane covering the designated pour opening so as to isolate an inner space 7 of main body 2 from an outer environment.
  • the separation membrane may be at least partially (and non-reversibly) breakable (i.e. openable and/or rupturable and/or cuttable and/or pierceable), in particular so as to allow a loss of the integrity of the separation membrane, which therefore allows the outpouring of the pourable product out of main body 2.
  • the separation membrane may comprise a gas- and light-barrier material, e.g. aluminum foil or ethylene vinyl alcohol (EVOH) film.
  • a gas- and light-barrier material e.g. aluminum foil or ethylene vinyl alcohol (EVOH) film.
  • the separation membrane may be defined by a portion of the packaging material, in particular a portion of the layers of the packaging material being different from the layer of fibrous material.
  • the separation membrane may comprise a portion of the layer of the gas- and light-barrier material.
  • opening device 3 comprises at least:
  • collar 15 may comprise an inlet opening 18 configured to allow for an inflow of the pourable product, in particular from inner space 7, into flow channel 16 and a pouring outlet 19 configured to allow an outflow of the pourable product from flow channel 16 (and collar 15).
  • flow channel 16 may extend between inlet opening 18 and pouring outlet 19.
  • the pourable product can flow from inner space 7 through the designated pour opening and/or inlet opening 18 into flow channel 16 and then through flow channel 16 and out of pouring outlet 19.
  • collar 15 may comprise an inner surface 20 facing and/or delimiting flow channel 16, and in particular also an outer surface 21 opposite to inner surface 20 (i.e. facing away from flow channel 16).
  • inner surface 20 may also face cutter 17 with cutter 17 being at least partially arranged within flow channel 16.
  • collar 15 and/or flow channel 16 may extend along a central axis B.
  • collar 15 may have an annular cross-section profile in a cross-sectional plane being perpendicular to central axis B.
  • collar 15 and/or inlet opening 18 and/or pouring outlet 19 may have a (substantially) circular cross-sectional profile, in particular in a cross-sectional plane perpendicular to central axis B.
  • Cutter 17 may be arranged, in particular moveably arranged, within flow channel 16.
  • cutter 17 may extend along and/or have a central axis C.
  • central axis C may be coaxial to central axis B with cutter 17 being at least partially placed within flow channel 16.
  • cutter 17 when being at least partially arranged within flow channel 16 may be coaxial to collar 15.
  • cutter 17 may comprise at least a cutting section 22 configured to break the separation membrane.
  • cutting section 22 may comprise, in particular consist of, a (curved) saw blade.
  • cutting section 22 may be arranged at a first end portion 23 of cutter 17.
  • cutter 17 may be controlled in a rest position in which cutter 17 is detached from the separation membrane (so as to guarantee integrity of the separation membrane) and an active position in which cutter 17, in particular cutting section 22, may be configured to break the separation membrane.
  • cutter 17 when package 1 is provided to an end customer, cutter 17 may be arranged in the rest position and the separation membrane is intact. Moreover, control of cutter 17 from the rest position to the active position may be actuated once. After the separation membrane has been broken, it is not necessary to repeatedly control cutter 17 between the active position and the rest position.
  • Cutter 17 may be arranged in a first axial position and a second axial position with respect to central axis B when being in respectively the rest position and the active position.
  • cutter 17, when being in the rest position and/or the first axial position, may be (substantially) fully arranged within flow channel 16.
  • Cutter 17, when being in the active position and/or the second axial position, may at least partially extend out of flow channel 16 and through inlet opening 18.
  • at least cutting section 22 may extend out of flow channel 16 and through inlet opening 18.
  • cutter 17, when being in the rest position, may be closer to pouring outlet 19 than when being in the active position.
  • cutter 17 may be configured to at least translate along central axis B when, in use, moving between the rest position and the active position.
  • cutter 17 may be configured to translate along and rotate about central axis B when, in use, moving between the rest position and the active position.
  • cutter 17 may be ring-shaped (i.e. have a cross-section with an annular shape in a plane perpendicular to central axis B).
  • Cutter 17 may comprise an outer surface 24 facing inner surface 20, in particular at least with cutter 17 being in the rest position.
  • opening device 3 may comprise an actuation device configured to actuate and guide movement of the cutter 17 from the rest position to the active position.
  • Opening device 3 further comprises a retaining device configured to block movement of cutter 17 out of flow channel 16 and through pouring outlet 19.
  • the retaining device guarantees that cutter 17 cannot (accidently) exit from flow channel 16 through pouring outlet 19.
  • the retaining device may comprise:
  • retaining group 31 and interaction group 32 may be configured to interact with one another so as to block movement of cutter 17 out of flow channel 16 and through pouring outlet 19.
  • retaining group 31 may be integral to collar 15 and/or interaction group 32 may be integral to cutter 17. Even more preferentially, retaining group 31 and collar 15 may be molded in a single piece and/or cutter 17 and interaction group 32 may be molded in a single piece.
  • retaining group 31 and/or interaction group 32 may be interposed between outer surface 24 and inner surface 20.
  • interaction group 32 may be interposed between retaining group 31 and inlet opening 18 and/or retaining group 31 may be interposed between interaction group 32 and pouring outlet 19.
  • interaction group 32 and retaining group 31 may be configured to interact with one another such that cutter 17 can move only to a certain degree, if at all, along a second direction D2 opposite to first direction D1 and to guarantee that cutter 17 cannot exit through pouring outlet 19.
  • interaction group 32 and retaining group 31 may be configured to interact with one another with cutter 17 being positioned in and/or moved to an end axial position with respect to central axis B.
  • cutter 17 may be in the rest position or in a position in which cutter 17 is closer to pouring outlet 19 than when being in the rest position.
  • the end axial position may define the axial position of cutter 17 in which cutter 17 is closer to pouring outlet 19 than in any other axial position.
  • retaining group 31 may be configured such to define and/or delimit the end axial position, even more particular as the interaction between interaction group 32 and retaining group 31 guarantees that cutter 17 cannot move further along second direction D2 once cutter 17 has reached the end axial position.
  • cutter 17 when being in the end axial position may have the maximum possible distance from inlet opening 18.
  • interaction group 32 and retaining group 31 may interact with one another only with cutter 17 being in the end axial position. In other words, once cutter 17 has reached the end axial position, a possible movement of cutter 17 along second direction D2 is blocked by the interaction between interaction group 32 and retaining group 31.
  • retaining group 31 may comprise one or more retaining elements 33, in the specific case shown two retaining elements 3, being displaced from one another.
  • Cutter 17 can be easily placed within flow channel 16 owing to the fact that retaining elements 33 are mutually spaced apart, i.e. spaced apart from each other.
  • retaining elements 33 may be angularly displaced from one another about central axis B.
  • retaining elements 33 may face one another.
  • retaining elements 33 may be displaced by substantially 180° from one another (in particular, when considering the angular displacement of respective center points of retaining elements 33 from one another).
  • retaining group 31 may comprise one annular retaining element 33.
  • annular retaining element 33 may have a circular cross-section and may be continuous.
  • each retaining element 33 may be formed as a hollow protuberance.
  • each retaining element 33 may comprise a respective cavity 39.
  • each retaining element 33 is hollow it is possible to optimize the amount of plastic used.
  • each retaining element 33 may comprise, in particular may consists of, a respective curved solid wall 47.
  • each solid wall 47 may delimit and/or define the respective hollow protuberance and/or the respective cavity 39.
  • each solid wall 47 may protrude towards the center of collar 15 and/or towards central axis B.
  • each retaining element 33 in particular the respective solid wall 47, may be convexly shaped towards the center of collar 15 and/or towards central axis B.
  • each solid wall 47 may be integral to inner surface 20.
  • each retaining element 33 in particular the respective solid wall 47, may define a respective indentation and/or groove in outer surface 22.
  • each solid wall 47 may have a thickness, preferentially a (substantially) constant thickness.
  • the thickness of solid wall 47 corresponds to the thickness of the portions of collar 15 adjacent to and connected to solid wall 47 and/or of one or more other portions of collar 15.
  • each interaction group 32 may comprise one or more interaction elements, preferentially integrally connected to and protruding from cutter 17.
  • opening device 3 preferentially the respective cutter 17, may also comprise a flange 30.
  • Flange 30 may be designed to stabilize movement of cutter 17 within flow channel 16.
  • flange 30 may interact with collar 15, in particular inner surface 20 for stabilizing movement of cutter 17, in particular when moving from the respective rest position to the respective active position.
  • flange 30 may comprise at least two flange elements 34 angularly displaced from one another about central axis C.
  • flange elements 34 may also be angularly displaced from one another about central axis B.
  • the number of retaining elements 33 and the number of flange elements 34 may equal one another.
  • respective first interspaces are present between retaining elements 33 and/or respective second interspaces may be present between flange elements 34.
  • each flange element 34 may radially protrude from cutter 17, in particular from a second end portion 35 of cutter 17 opposed to first end portion 23.
  • each flange element 34 may radially protrude away from the respective central axis C.
  • each flange element 34 may radially protrude from a rim 36 of second end portion 35.
  • each flange element 34 may protrude towards inner surface 20 and/or away from a center of cutter 17.
  • each flange element 34 may comprise and/or or may be defined by a plate, in particular a plate perpendicular to central axis C.
  • each flange element 34 may be arc-shaped.
  • each flange element 34 may extend between a respective first angular position and a respective second angular position, in particular with regard to central axis C.
  • each first angular position and the respective second angular position may define a respective first angular extension of each flange element 34.
  • each first angular extension may be measured in arc degrees (°).
  • each flange element 34 may have the same size as the other flange element(s) 34.
  • the respective first angular extension of each flange element 34 corresponds to the respective first angular extensions of the other flange elements 34.
  • each retaining element 33 may radially protrude from inner surface 20, in particular towards a center of collar 15 and/or towards central axis B.
  • each retaining element 33 may be arc-shaped.
  • each retaining element 33 may extend between a respective third angular position and a respective fourth angular position.
  • each third angular position and the respective fourth angular position may define a respective second angular extension of each retaining element 33.
  • each second angular extension may be measured in arc degrees (°).
  • each retaining element 33 may have the same size as the other retaining element (s) 33.
  • the respective second angular extension of each retaining element 33 may correspond to the respective second angular extensions of the other retaining element(s) 33.
  • each first angular extension may be larger than each second angular extension.
  • an angular distance between two flange elements 34 may be larger than the second angular extension.
  • the angular distance is determined between the respective second angular position of a first flange element 34 and the respective first angular position of a second flange element 34, in particular with regard to central axis C.
  • no other flange element 34 is interposed between the first flange element 34 and the second flange element 34.
  • retaining group 31 may comprise an abutment surface 37, in particular facing inlet opening 18.
  • each retaining element 33 may comprise a respective portion of abutment surface 37 (in other words, abutment surface 37 is discrete, i.e. having non-connected portions).
  • interaction group 32 may have an engagement surface 38, in particular facing pouring outlet 19.
  • Engagement surface 38 may be configured to abut against abutment surface 37 so as to block the movement of cutter 17 out of flow channel 16 and through pouring outlet 19, in particular with cutter 17 being in the end axial position. In particular, in use, engagement surface 38 may abut against abutment surface 37 with cutter 17 being in the end axial position.
  • each interaction element may carry a portion of engagement surface 38.
  • opening device 3 may also comprise
  • opening device 3 may also comprise a coupling ring 42 rotatably arranged around collar 15, in particular such that coupling ring 42 is inseparable from collar 15.
  • each opening device 3 may also comprise a connection element, preferentially a tethering element, connected to, preferentially non-rupturably connected to, coupling ring 42 and closure 41.
  • closure 41 may be controllable in at least:
  • closure 41 may be rotatably coupled (about central axis B) to collar 15 when being in the closing position.
  • opening device 3 may comprise an actuation device partially associated to (and/or connected to and/or carried by) collar 15, partially associated to (and/or connected to and/or carried by) closure 41 and partially associated to cutter 17 and being configured such that a rotation of closure 41 about central axis B may move closure 41 from the closing position to and/or towards the opening position.
  • the actuation device may comprise first interaction members (not shown), in particular flaps, connected to closure 41, and second interaction members 43 connected to, in particular integrally connected to, cutter 17, in particular main portion 23.
  • the actuation device may also comprise a cam mechanism connected to collar 15 and/or cutter 17 and configured to guide movement of cutter 17 from the rest position to the active position.
  • cam mechanism may comprise a cam structure 45 connected to, preferentially integrally connected to, and protruding from cutter 17 and a plurality of cam elements (not shown) connected to, in particular integrally connected to, collar 15.
  • At least one or more portions of cam structure 45 may define one or more interaction elements of interaction group 32. In other words, at least one or more portions of cam structure 45 may define engagement surface 38.
  • first interaction members and second interaction members 43 may be configured to interact with one another for actuating movement of cutter 17 from the rest position to the active position.
  • a rotation of the first interaction members about central axis B may be actuated for moving cutter 17, in particular by means of a rototranslatory movement, from the rest position to the active position.
  • cutter 17 may be approached towards collar 15 and flange elements 34 may be aligned with respect to the first interspaces. Afterwards, cutter 17 is pressed into flow channel 16, thereby flange elements 34 pass through the respective first interspaces. Moreover, interaction group 32 and/or cam structure 45 is pressed over retaining elements 33 and afterwards cutter 17 cannot move out of flow channel 16 and through pouring outlet 19.
  • outpouring of the pourable product from package 1, in particular main body 2 requires to open pouring outlet 19 and to break the separation membrane.
  • the separation membrane is broken by moving the cutter 17 from the rest position to the active position. This is achieved by the first interaction members rotating about central axis B.
  • opening device 3 comes along with a minimum need of plastic as retaining elements 33 are hollow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP23180688.6A 2022-06-30 2023-06-21 Öffnungsvorrichtung für eine verpackung und verpackung damit Pending EP4299460A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22182244 2022-06-30

Publications (1)

Publication Number Publication Date
EP4299460A1 true EP4299460A1 (de) 2024-01-03

Family

ID=82494049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23180688.6A Pending EP4299460A1 (de) 2022-06-30 2023-06-21 Öffnungsvorrichtung für eine verpackung und verpackung damit

Country Status (2)

Country Link
EP (1) EP4299460A1 (de)
WO (1) WO2024002832A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013101526A1 (de) * 2013-02-15 2014-08-21 Sig Technology Ag Vorrichtung zum Öffnen und Wiederverschließen von Lebensmittel enthaltenden Packungen
EP3153304A1 (de) * 2015-10-05 2017-04-12 Tetra Laval Holdings & Finance S.A. Schweisskopf
EP3798150A1 (de) * 2019-09-30 2021-03-31 Tetra Laval Holdings & Finance S.A. Verschlussanordnung für behälter und behälter mit verschlussanordnung
EP3943408A1 (de) * 2020-07-24 2022-01-26 SIG Technology AG Ausgiesselement mit absichernder schneidelementführung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013101526A1 (de) * 2013-02-15 2014-08-21 Sig Technology Ag Vorrichtung zum Öffnen und Wiederverschließen von Lebensmittel enthaltenden Packungen
EP3153304A1 (de) * 2015-10-05 2017-04-12 Tetra Laval Holdings & Finance S.A. Schweisskopf
EP3798150A1 (de) * 2019-09-30 2021-03-31 Tetra Laval Holdings & Finance S.A. Verschlussanordnung für behälter und behälter mit verschlussanordnung
EP3943408A1 (de) * 2020-07-24 2022-01-26 SIG Technology AG Ausgiesselement mit absichernder schneidelementführung

Also Published As

Publication number Publication date
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