Opening device for package for injectable product

Abstract

To provide an opening device configured to be applied to a package for an injectable product.SOLUTION: An opening device (1) comprises: a closure element (30) including a protrusion (24) formed integrally with an inlet (10) and connected to the inlet (10) by a breakable connection (31) configured to be broken during a first opening of the opening device (1), and extending through an inlet opening (11) and connected to a cap (12); and tamper evidence means (21) fitted into the inlet (10) and initially connected to the cap (12) using at least one breakable connecting bridge configured to break during the first opening of the opening device (1). The cap (12) is connected to the tamper evidence means (21) by a hinged connection, thereby being connected to the inlet (10).SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a package for an injectable product, in particular an injectable product, preferably The present invention is directed to a sheet packaging material for forming a package containing a pourable food product. The present invention relates to an opening device adapted to be used in an opening operation, particularly a reclosable opening device. .

[0002] More specifically, the present invention is designed to be molded directly onto a sheet packaging material, It is then folded to form a package, filled with a pourable product, and sealed. The present invention relates to an opening device adapted to be opened. [Background technology]

[0003] As is commonly known, fruit juice, UHT (ultra-high temperature treated) milk, wine, tomato sauce Many pourable food products, such as cereals, cheeses, and others, are made from sterilized packaging materials. It is sold in a package.

[0004] A typical example is known as Tetra Brik Aseptic®. , a parallelepiped-shaped package for pourable food products, Tetra Bri k Aseptic® is a packaging material made by folding laminated sheets of It is created by sealing.

[0005] Specifically, the packaging material may be a fibrous material, such as paper or mineral-filled polypropylene. The base layer for stiffness and strength may be made from a polyurethane material, with a heat sealable plastic covering both sides of the base layer. The laminate essentially comprises several layers made of plastic materials, such as polyethylene film. It has a multi-layer structure.

[0006] For aseptic packaging for long shelf life products such as UHT milk or fruit juice, the packaging material The material is a layer of gas barrier material, such as aluminum foil or ethyl vinyl alcohol (EVOH ) film, which is laminated onto a layer of heat-sealable plastic material and then heat-sealed. The laminate is then covered with another layer of fused plastic material. This layer of plastic material is then finally It forms the inner surface of the package which contacts the pourable food product.

[0007] This type of packaging is generally produced on a fully automatic packaging machine. In, a continuous tube is formed from a sheet of packaging material.

[0008] Additionally, sheets of packaging material can be disinfected in the packaging machine by adding chemical disinfectants. The chemical disinfectant is then removed after disinfection is complete.

[0009] The sheet of packaging material is then maintained in a closed, sterile environment to form a tube. The container is folded and sealed longitudinally to seal the container.

[0010] To complete the forming operation, the tube is piped from above to the pourable food product. Filled, formed, sealed, then cut along equally spaced transverse sections will be done.

[0011] A pillow pack having a longitudinal seal band, an upper lateral seal band and a bottom lateral seal band is thereby obtained. and then machined to form each completed substantially parallelepiped shaped package. It is mechanically folded.

[0012] Instead, the packaging material is cut into blanks, which are then slit into the blanks to form the shaft. The resulting package is filled with a food product and sealed. One example of such a package is commonly known under the trade name Tetra Rex®. This is what is known as a "gable top" package.

[0013] To open the above package, various solutions have been proposed, one of which is to the packaging is made of a stick material and includes a fill port and defines a fill opening therethrough; a hole or a pierceable or tearable portion disposed on the wall of the This involves the use of a reclosable opening device.

[0014] According to known solutions, the injection port is a so-called prelaminated hole, i.e. only through the base layer. The lamination process forms a layer of the gas barrier material over the other layers of packaging material. The hole is fitted over the hole covered with a

[0015] In other words, the inlet fits over the pierceable portion of the pre-laminated hole, typically by bonding. The laminate is then laminated and a hole is created in the laminate.

[0016] According to an alternative solution, the penetrable portion is then penetrable through the entire thickness of the packaging material. It may be defined by a patch attached to the packaging material to close the formed hole. do.

[0017] According to known solutions, the opening of the inlet is integrally connected to the inlet and has a smaller cross section. along the annular tearable member, a plastic closure element separable therefrom Sealed by.

[0018] Specifically, the inlet and closure element are directly over a penetrable portion formed in the packaging material. The part is injection molded in one piece.

[0019] The closure element is substantially in contact with the packaging material so as to seal the resulting hole in the top wall of the package. The slits extend at substantially the same level.

[0020] The closure element is configured to be removed during an initial opening of the opening device.

[0021] The above-mentioned type of opening device may, for example, be fitted with a removable screw-on cap (or lid). The cap is adapted to close the inlet outwardly and to close the inlet after its initial opening, i.e. after removal of the closing element. The inlet is adapted to fit over the inlet such that the package can be closed after removal. .

[0022] During production of the opening device, the penetrable portion on which the inlet and the closing element are formed is The molds are then folded to reach a closed configuration. and in a closed configuration, the mold cooperates with both sides of the packaging material; A closed mold cavity is defined which houses the penetrable portion described above.

[0023] Injection molding operations involve the injection of molten plastic material into a closed structure defined by a mold. More specifically, molten plastic is injected into a mold cavity. The material is pressed to completely fill the casting cavity to form the inlet and closure elements. can be done.

[0024] Specifically, the molten plastic material is injected onto the side of the penetrable portion, which facing the inside of the completed package, thereby forming a closure element attached to that side. Due to the molding pressure and the specific geometry of the mold, the molten plastic material is then Then, it is pressed so as to penetrate the penetrable portion and protrude from the opposite side.

[0025] In this way, the inlet is integrally formed with the closure element and projects from the opposite side of the penetrable portion. The injection opening is therefore closed on one side thereof near the penetrable portion by the closure element.

[0026] The separately formed cap is then closed by a closure element on one side (opposite side) and A different one is fitted to the inlet to close the inlet opening on its other side.

[0027] Typically, the cap is screwed onto the inlet. For this purpose, the inlet has an external thread. and a substantially cylindrical collar, whereas the cap includes an internal thread and is initially Additionally, the cap is generally integral with a relative tamper-evidence ring. The tamper-evident ring is attached to the cap itself using multiple breakable bridges. Connected to the shaft, the tamper-evident ring is designed to break the bridge and unscrew the cap from the collar. When removed, it is designed to remain engaged with the collar.

[0028] After opening the cap, i.e. separating the cap from the tamper-evidence ring, After unscrewing the cap from the collar by applying pressure, the user can also To access the side, the pierceable portion covering the prelaminated hole must be removed. It is known in the art that the adhesive must be cut or torn. .

[0029] For this purpose, according to a known arrangement, the opening device is coupled to a closure element and A pull-out device configured to be torn by a user when the top is unscrewed from the collar. Includes tongs.

[0030] According to an alternative solution, the closure element is formed in one piece with a projection extending through the injection opening. Such a projection is then welded to the cap. Physically connect.

[0031] This configuration allows the cap to be lifted only, i.e. without first unscrewing the cap. The package can be opened in one low-effort step during this process. The action is exerted on a closure element integrally connected to the cap, which is adapted to remove the filler from the inlet. The tearing action is along the annular member of smaller cross section. Starting at a given point on the material, the material is then drawn along the remainder of the material until the closure element is completely separated from the inlet. propagates to.

[0032] There is a continuing need to reduce the environmental impacts associated with packaging and packaging of food and non-food products. It is known in the art that there is a growing number of chemicals that contaminate the aquatic and terrestrial environments. Great care must be taken regarding possible plastic components of packaging . Summary of the Invention [Problem to be solved by the invention]

[0033] Accordingly, a method and apparatus for manufacturing such a device is provided that is designed to meet the above-mentioned needs in a simple and low-cost manner. and providing an opening device adapted to be applied to a package for a pourable product. This is the object of the present invention. [Means for solving the problem]

[0034] This object is achieved by an opening device according to claim 1.

[0035] Non-limiting embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief description of the drawings]

[0036] [Figure 1] 1 is a perspective view of the top of a sealed package for containing a pourable product onto which an opening device according to the present invention is fitted. FIG. [Diagram 2] 2 is a larger, partial cross-sectional side view of the opening device and package of FIG. 1 with parts removed for clarity; FIG. [Diagram 3] 3 is a more enlarged cross-sectional side view of details of the opening device and package of FIG. 2 with parts removed for clarity; FIG. [Figure 4] FIG. 2 is a more enlarged, partial cross-sectional side view of a sheet of packaging material intended to form the package of FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] Referring to FIG. 1, the number 1 is a mold for an injectable product, preferably an injectable food product. 1 generally illustrates an opening device configured to be applied to a package of

[0038] In the example shown, the package is adapted to contain an injectable product and has , a wall into which the opening device 1, preferably made of plastic material, is fitted, in particular by a package 3 made from a multi-layer sheet of packaging material 2 having a top wall 4 It is defined.

[0039] Specifically, the package 3 contains a pourable product such as milk, water, fruit juice or the like. is adapted to accommodate

[0040] In the example shown, the opening device 1 is fitted into the open area of ​​the packaging material 2 and then 3. The package 3 is folded in a known manner to form a package 3, filled with a pourable product, and sealed. The open area is disposed within a region of the packaging material 2, which region is a package 3 Forms the upper wall 4 of the

[0041] According to an alternative embodiment not shown, the opening device 1 is adapted to open the package 3 completely. After formation, the adhesive is fixed by conventional fastening means, such as adhesive substances, for example glue, or by welding techniques. The aperture is fitted to the open area using techniques such as laser welding or micro-flame welding.

[0042] 2 to 4, the packaging material 2 is a fibrous material, such as paper or mineral-filled polypropylene. A base layer 5 for providing stiffness and strength, which may be made of a polypropylene material, and a cover layer arrangement Includes 6 and.

[0043] In detail, the cover layer arrangement 6 includes a first cover layer 6a and a second cover layer 6b, both of which The base layer 5 is also made of a heat-sealable plastic material, for example a polyethylene film, and is attached to both sides of the base layer 5. cover.

[0044] The packaging material 2 includes a penetrable portion 7 in the opening area, and the opening device 1 includes a penetrable portion 7, which penetrates the pourable product during use and after the package 3 is formed. The housing 3 is configured to be at least partially detachable from the upper wall 4 so that it can be removed from the package 3. It is done.

[0045] The penetrable portion 7 therefore defines an opening area into which the opening device 1 is fitted.

[0046] According to another embodiment not shown, the open area is formed by the packaging material 2, in particular the upper It may also be a through hole made in the part of the packaging material 2 forming the wall 4 .

[0047] In this case, package 3 is a sterile package for a long-term food product, and therefore The cover layer arrangement 6 is made of a gas barrier material, such as aluminum foil or ethyl vinyl alcohol. It also includes a barrier layer 8 made from an (EVOH) film, which is a heat-sealable plastic material. 2. Then, the third covering layer 6b is applied to the second covering layer 6b of the cover layer arrangement 6. Covered by 6c.

[0048] In particular, the third coating layer 6c is a coating layer that is formed on the packaging that will ultimately contain the pourable food product. Forms the inner surface of 3.

[0049] In other words, the first coating layer 6a, the second coating layer 6b, the barrier layer 8 and the third coating layer 6c are When producing packaging material 2 in the form of a continuous sheet, a The lamination process defines the laminations added to the base layer 5 before the continuous sheet is cut and folded for lamination. do.

[0050] The penetrable portion 7 is defined by a through hole formed only through the base layer 5 and the first coating It is covered by layer 6a, a second covering layer 6b, a barrier layer 8 and a third covering layer 6c.

[0051] In practice, the penetrable portion 7 is made from the above-mentioned laminate and passes through a through hole formed in the base layer 5. Close.

[0052] Preferably, the penetrable portion 7 is an integral part of the cover layer arrangement 6 .

[0053] According to an alternative embodiment not shown, the penetrable part 7 is formed by one or more first coverings. It may be made of only the covering layer 6a, the second covering layer 6b, the barrier layer 8 and the third covering layer 6c. For example, the penetrable portion 7 may be made from the barrier layer 8 only.

[0054] According to a further alternative embodiment not shown, the penetrable part 7 is then The insulating layer 2 is attached to the packaging material 2 to cover a hole formed through the entire thickness of the packaging material 2. The area may be defined by a patch.

[0055] The penetrable portion 7 is preferably perpendicular to the top wall 4, specifically when the package 3 is in contact with the bottom wall ( 4) (not shown, which is substantially parallel to the upper wall 4).

[0056] According to the non-limiting example shown, the penetrable portion 7 has a substantially circular shape concentric with the axis A. do.

[0057] Referring to FIGS. 1 to 3, the opening device 1 is - fixed at the penetrable portion 7 to the upper wall 4, i.e. to the packaging material 2, and in use A through hole for the pourable product, which ends in an opening 11a through which the pourable product is poured. an inlet 10 defining a through-fill opening or passageway 11; - in one area of ​​the path 11, specifically at the same level of the packaging material 2, and adapted to be easily torn during initial opening of the opening device 1. A closure integrally connected to the inlet 10 by a smaller cross-section annular member 31 which is fitted to the inlet 10. Element 30; and - configured to be in contact with and cooperate with the inlet 10, in particular at the opening 11a, That is, a different (opposite) path 1 from that closed and / or sealed by the closure element 30. In the region of 1, a cylinder configured to engage the inlet 10 to close the passage 11 is provided. Chapp 12 and Includes.

[0058] In detail, the opening 11a is arranged coaxially with the axis A, and the cap 12 closes the passage 11. The inlet 10 is configured to engage coaxially with the axis A for receiving the inlet 10 .

[0059] The annular member 31 has a groove 32 therebetween for separating the closure element 31 from the inlet 10 in use. Define the tear line.

[0060] According to this non-limiting preferred embodiment of the present invention, the inlet 10 and the closure element 30 are The cap 12 is integrally formed in one piece and fits directly onto the penetrable portion 7, whereas the injection The port 10 and the closure element 30 are formed separately and then fitted to the inlet 10 .

[0061] In particular, according to the solution disclosed herein, the inlet 10 and the closure element 30 are The molten plastic material is molded, specifically by injection molding. A cage material 2 is obtained on the packaging material 2 before it is transformed into a package 3 .

[0062] More specifically, the molten plastic material is poured into a molding apparatus (known per se and not shown). One side 7a of the penetrable part 7, i.e. the final packing, is placed in a known manner in the On the inward facing side of the cage 3, the molten plastic material is injected. , so as to form in this way a closure element 30 attached directly to the penetrable part 7, around its annular circumference. The molten plastic material then covers the side 7a up to the edge region of the penetrable portion 7. In order to form an inlet 10 protruding from side 7b, a penetrable portion is provided in such an annular peripheral region. More specifically, the injection port 10 is inserted through the annular member 31. and connected to the closure element 30.

[0063] In this way, the penetrable portion 7 is first pierced and then the press forming the closure element 30 is It is then resealed with a plastic material.

[0064] The inlet 10 is substantially parallel to the upper wall 4 of the package 3 so as to surround the penetrable portion 7. Molded into the packaging material 2 is a closure element 30 , which preferably includes a flat substrate 13 .

[0065] Specifically, the substrate 13 is molded onto the side surface 7 a of the penetrable portion 7 .

[0066] Thus, the closure element 30 and the penetrable portion 7 together define a seal that seals the passageway 11. do.

[0067] The closure element 30 has a substantially confetti part and is a part of the substrate 13 transverse to the axis A. It defines a qualitative radial extension.

[0068] In fact, the closure element 30 is initially used to close and / or seal one axial end of the passage 11. On the other hand, the cap 12 closes the axial end on the opposite side of the passage 11, i.e., the opening 11a, during use. do.

[0069] The inlet 10 projects laterally, specifically at a right angle, from the base plate 13 and is coaxial with the axis A when in use. The passage 11 further includes a cylindrical collar 14 having a longitudinal axis B. Specifically, the collar 14 is Therefore, the opening 11a is also arranged coaxially with the axis B.

[0070] In fact, the collar 14 of the inlet 10 is arranged on both sides 7a, 7b of the penetrable portion 7. As shown in FIG.

[0071] As can be seen in FIGS. 1 and 2, the cap 12 includes a substantially flat circular portion 15 and a cylindrical portion 16. 16, which extends from the flat portion 15 along the longitudinal axis C of the cap 12 itself. 1 and configured to coaxially engage collar 14 to close passageway 11 .

[0072] For this purpose, the cap 12 has a protruding portion 15 in a direction substantially parallel to the axis C. From the same side, the cylindrical portion 16 protrudes and closes the passage 11. The inlet 10 is configured to engage with a collar 14 of the inlet 10 for receiving the inlet 10 .

[0073] In detail, the engaging portion 32 is disposed at a position radially closer to the axis C than the cylindrical portion 16, and the snap fastener The collar 14 defines a snap joint.

[0074] More specifically, the engagement portion 32 has a substantially hook-shaped cross section and a concave interior that is aligned along the axis C. The forward facing, convex exterior faces the interior surface 20 of the cylindrical portion 16 .

[0075] When in use, the cap 12 is - the cap 12 is engaged with the collar 14, thereby closing the passage 11 and the opening 11a a closed position in which the an open position in which the cap 12 is disengaged from the collar 14 and removed from the inlet 10; can be moved between.

[0076] When the cap 12 is in the closed position, the engagement portion 32 engages the passage 11 of the collar 14 . More specifically, the outer projections cooperate in contact with the inner surface 18 of the collar 14, thereby forming a cap. The snap connection between the cap 12 and the collar 14 is defined as described above, so that the collar 14 can be attached thereto. Due to the action of pushing on 14 it bends slightly inwardly towards axis C (and therefore axis B).

[0077] In fact, engagement portion 32 has a larger engagement diameter relative to axis C than inner diametrical surface 18 has relative to axis B. The larger diameter of the protrusions of the cap 12 allows the cap 12 to engage the protrusions when the cap 12 is in its closed position. 32 cooperates with such inner surface 18 in contact with it, thereby moving in the direction of axes B and C. bent to determine interference snap connections.

[0078] The opening device 1 is preferably integrally formed with the cap 12, e.g. The cap 12 is first attached to the edge 2 by injection molding together with several breakable connecting bridges. 2, a tamper evidence means, specifically a tamper evidence ring 2 1 is further included.

[0079] In particular, the cap 12 has the lip 22 and the tamper-evidence ring 21 still attached. The inlet 10 in the closed position remains connected to each other by a breakable connecting bridge. Collar 14 is initially engaged (before initial release).

[0080] According to this embodiment, the tamper-evidence ring 21 is disposed relative to the axis A and the axis B. and when separated from cap 12, the tamper-evident ring Gus 21 remains substantially axially fixed relative to axes A and B.

[0081] For this purpose, the collar 14 is fitted with a corresponding annular projection of a tamper-evidence ring 21. 23 includes an annular projection 19 defining an axial abutment for the bearing 23.

[0082] Conventionally, the projection 19 projects radially outward from the collar 14 relative to the axis B. When the tamper-evidence ring 21 is fitted to the collar 14, the projection 23 faces the axis B. and protrudes radially inward.

[0083] When cap 12 is fitted onto inlet 10, tamper-evidence ring 21 is 23 engages with the collar 14 so as to be located at an axial position closer to the penetrable portion 7 than the projection 19. .

[0084] In this way, the projections 19 act as upper shaft stops for their respective projections 23, This allows the tamper-evidence ring 21 to move axially along the axis A and the axis B. i.e., to prevent the tamper-evidence ring 21 from coming axially out of the collar 14. Prevent.

[0085] In one embodiment, the tamper-evidence ring 21 is also angularly fixed relative to axes A and B. will be done.

[0086] In a further embodiment, the tamper-evidence ring 21 is rotatable about axis A and axis B. It is Noh.

[0087] Once opened, the cap 12 is movable between a closed position and an open position.

[0088] During the initial disengagement of the cap 12 from the collar 14, i.e., when the cap 12 is in its closed position During the initial movement from the cap to its open position, the tamper evidence ring 21 and the cap 12 The first connecting bridge will break.

[0089] More specifically, after the cap 12 is initially disengaged from the collar 14, the tamper-evident The projection 23 of the ring 21 abuts against the projection 19 in the axial direction, and the projection 19 is, as described above, axial stop for such projection 23.

[0090] Due to the forces applied to the tie bridges, these tie bridges break, thereby causing the cap 12 is released from the Tamper Evidence Ring 21, and the Tamper Evidence Ring 21 is colored It can be disengaged from 14.

[0091] After the cap 12 is opened, i.e., the cap 12 is separated from the tamper-evidence ring 21, After the cap 12 is disengaged from the collar 14, the closure element 30 and the penetrable portion 7 are also must be removed to access the injectable product inside package 3. are known in the art.

[0092] For this purpose, the closure element 30 initially extends through the channel 11 (before the first opening). When the cap 12 is fitted to the injection port 10, the cap 12, specifically the flat portion 15 The protrusion 24 is configured to be connected, specifically, welded, and specifically, is aligned with the protrusion 24. Formed into pieces.

[0093] During fitting of the cap 12 to the inlet 10, the projections 24 are secured to the inlet 10 by a known method not described in detail. The flat portion 15 is connected (fixed), specifically, fused, according to the above-mentioned method.

[0094] As shown in FIG. 2, when the cap 12 is fitted to the inlet 10, the protrusion 24 closes the inlet 10. It includes two legs 25 which project axially from the chain element 30 and connect the closure element 30 with the flat portion 15. nothing.

[0095] Specifically, the legs 25 are formed by injecting the molten plastic material through the penetrable portion 7 as described above. During dispensing, the closure element 30 and the inlet 10 are formed in one piece.

[0096] During the initial opening of the opening device 1, the cap 12 is lifted by the user. As a result, the cap 12 is disengaged from the collar 14 and the legs 25 welded to the flats 15 are The closure element 30 exerts a pulling force on the closure element 30. The closure element 30 is thus pulled along the annular member 31. The mouth 10 is torn from the substrate 13 .

[0097] Specifically, the tearing occurs at a given portion of the annular member 31 which acts as a weakened area of ​​the substrate 13. and then completely separates the closure element 30 from the inlet 10, thus 7 is completely separated from the packaging material 2 and the top wall 4. (Figure 2).

[0098] In accordance with an important aspect of the present invention, the cap 12 is hinged to a tamper-evident ring 21. 1 and 2, is connected to the inlet 10 when the cap 12 is fitted thereto.

[0099] In particular, the opening device 1 hinges the cap 12 to a tamper-evident ring 21. It includes an interlocking hinge element, preferably defined by a plastic hinge 26 .

[0100] Therefore, the hinge 26 allows the cap 12 to be disengaged from the collar 14 and the cap The inlet 12 does not separate from the inlet 10, i.e., from the packaging material 2 and / or the package 3. (and specifically not to be disposed of separately).

[0101] Preferably, the hinge 26 is arranged along axis A, specifically along axis A and axis B, more specifically along axis A and axis B. B and the angle is fixed relative to axis C.

[0102] Specifically, the hinge 26 has a first end 27 that is fitted to the cap 12, a tamper-evident The second end 28 is fitted to the support sling 21, and the first end 27 and the second end 28 are alternately connected to each other. It includes a connecting portion 29 that connects to each other.

[0103] As seen in FIGS. 2 and 3, the first end 27 is fitted into the cylindrical portion 16 of the cap 12. The second end 28 is fitted to the outer surface 21 a of the tamper-evidence ring 21 .

[0104] More specifically, the first end 27 is fitted to the edge 22 .

[0105] According to an alternative embodiment not shown, the first end 27 is fitted to the flat portion 15. do.

[0106] In this embodiment, the first end 27, the second end 28 and the connecting portion 29 are integrally formed in one piece. will be done.

[0107] Preferably, the cap 12 and hinge 26 are integrally formed in one piece.

[0108] Even more preferably, the cap 12, hinge 26 and tamper-evidence ring 21 are , is integrally formed in one piece and then fitted to the inlet 10 as described above.

[0109] According to this non-limiting preferred embodiment, the tamper evidence ring 21 is specifically According to a known method not described, for example by using a connection between a protrusion and a recess, the axis A and the axis The angle with respect to B is also fixed.

[0110] This configuration allows for the pourable product to be poured onto the outside of the package 3 while preventing the pourable product from exiting the package 3. This prevents unwanted movement of the cap 12 in front of the pouring track of the pourable product being dispensed.

[0111] Considering the above, the hinge 26 defines the area of ​​maximum distance of the cap 12 from the inlet 10. In this embodiment, the cap 12 is arranged away from the inlet 10 and toward the inlet 10. and does not impede the exit of the pourable product from the package 3 during use.

[0112] The operation of the opening device 1 will now be described with reference to FIGS. 1 and 2, with the cap 12 still attached. The liquid starts out in a state where it is received on the inlet 10 as a liquid.

[0113] To open the package 3 starting from this situation, the user engages and disengages the cap 12, This breaks the connecting bridge of the tamper-evidence ring 21 and releases the closure element 30 from the substrate 13. It is decided that it will tear, thereby tearing the penetrable part 7.

[0114] This disengagement action shifts the cap 12 from its closed position to its open position.

[0115] During the transition of the cap 12 from the closed position to the open position, the cap 12 is supported by the hinge 2 as described above. 6 is connected to the inlet 10.

[0116] Once the desired amount of pourable product has been dispensed through passageway 11, the user removes cap 12. By re-engaging the collar 14, the passage 11 can be closed.

[0117] The advantages of the opening device 1 according to the invention will be apparent from the above.

[0118] Specifically, the presence of hinge 26 allows cap 12 to securely attach to inlet 10 and, therefore, to the package. The material 2 and / or the package 3 are securely connected to the material 2 and / or the package 3, and after use of the package 3, the material 2 and / or the package 3 are securely connected to the material 2 and / or the package 3. The risk of the cap 12 dispersing is consistently reduced, thereby reducing plastic pollution of the environment. While preventing this, it is at least as easy to use as opening devices known in the art that do not include a hinge 26. Maintain the same diversity.

[0119] Additionally, the hinge 26 is integral with the cap 12 and the tamper-evidence ring 21. Therefore, the implementation of the present invention is based on the structure of the cap 12 and the tamper-evidence ring 21. Only minor design modifications are required to accommodate the inlet 10 and no design modifications or adaptations are required for the inlet 10.

[0120] Obviously, as described herein, but as defined in the appended claims. Modifications may be made to the opening device 1 without departing from the scope of protection. stomach.

Claims

1. An opening device configured to be applied to a package (2, 3) for an injectable product. A chair (1), - a pouring opening (11) through which, in use, said pourable product is poured; an inlet (10) defining an inlet opening (11) of to said injection port (10) for respectively closing and opening said injection opening (11); a cap (12) configured to engage and disengage with the a closure element (30) for closing and / or sealing said injection opening (11), It is formed in one piece with the inlet (10) and breaks during the initial opening of said opening device (1). The injection port (10) is connected to the injection port (10) by a breakable connection (31) configured as described above. A protrusion (2) extending through the injection opening (11) and connected to the cap (12) 4), and - fitted to said inlet (10) and broken during the first opening of said opening device (1), The cap is first secured to the cap member by at least one breakable connecting bridge configured to be broken. a tamper evidence means (21) connected to the (12); An opening device (1) comprising: The cap (12) is hinged to the tamper evidence means (21) and An opening device (1) characterized in that it is connected to the inlet (10).

2. A hinge for hingedly connecting said cap (12) to said tamper evidence means (21). The opening device of claim 1 further comprising an element (26).

3. The hinge element (26) has a first end (27) that is fitted to the cap (12); A second end (28) fitted to the tamper evidence means (21) and the first end a connecting portion (29) connecting the first end (27) and the second end (28) to each other.

3. An opening device as described in claim 2.

4. The cap (12) includes a top portion (15) and a side portion (16), the side portion (16) being , protruding from the top (15) and for closing the injection opening (11). (10), 4. The opening device according to claim 3, wherein the first end (27) is fitted to the side portion (16). Vice.

5. The tamper evidence means is configured to fit into the inlet (10). Including the amper evidence ring (21), The second end (28) is in contact with the outer surface (21a) of the tamper-evidence ring (21).

5. The opening device according to claim 3 or 4, wherein the opening device is fitted to a slit in the opening hole.

6. The inlet (10) has a first longitudinal axis (B) and includes an inlet opening (11). a cylindrical collar (14) defining a coaxial The cap (12) has a second longitudinal axis (C) and is disposed adjacent the injection opening (11). configured to coaxially engage said collar (14) to close said The tamper evidence ring (21) is fitted coaxially around the collar (14). and configured to be axially fixed relative to the first longitudinal axis (B). The opening device of claim 5 .

7. The cap (12) and the hinge element (26) are integrally formed in one piece. An opening device according to any one of claims 2 to 6.

8. The cap (12), the hinge element (26) and the tamper evidence means (2 The opening device according to any one of claims 2 to 6, wherein 1) is integrally formed in one piece.

9. The cap (12) is configured to engage the inlet (10) in a snap-fit ​​manner. The opening device according to any one of claims 1 to 8.

10. The closure element (30) is a molded part over the opening (7) of the package (2, 3). The opening device according to any one of claims 1 to 9, which is made of a plastic material. ）。

11. The breakable connection (31) is connected to the protrusion (24) by the cap (12).

11. The method according to claim 1, wherein the device is adapted to be broken using a pulling action exerted on the device. An opening device (1) as described in item 1.

12. A sheet of packaging material (2) containing a pourable product and having an opening (7) A package (3) obtained from the opening device according to any one of claims 1 to 11. A seat (1) including an opening device (1) that is fitted in the opening (7). Package (3).

13. The inlet (10) of the opening device (1) is a molded protrusion on the opening (7).

13. The package (3) according to claim 12, made from a plastic material.

14. The closure element (30) of the opening device (1) is molded onto the opening (7). A package (3) according to claim 12 or 13, made from a plastic material.

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