JP2008503406A - Packaging supplies - Google Patents

Abstract

  A beverage container for storing carbonated beverages includes a container body (10) including an opening (11), and detachable closing means (12) for closing the opening (11), and the closing means includes the opening (11). A foil (20) is provided to provide a hermetic seal. The force generated due to the pressure in the container acts on the foil (20), and the tendency to separate the foil (20) from the container body (10) by peeling off is, for example, provided with a collar (12A) This arrangement is preferred as a result of limiting the deflection of the foil (20) next to the joint and / or by the shape of the edge (15) of the container body (10), or both. The closing means can withstand higher internal pressure than in other cases.

Description

  The present invention relates to a beverage container, and more particularly to a container for supplying beverages to consumers. The present invention has particular utility in the storage and supply of carbonated and other sparkling beverages, but can also be used in other types of beverages.

  Over the years, a practical wide-mouth beverage supply between beverage suppliers and container manufacturers that consumers can comfortably drink in the same way they drink from glasses or other drinking containers, especially with respect to carbonated beverages such as beer There was a request to provide a container. Although such beverage containers offer significant benefits to beverage suppliers, container manufacturers and consumers, beverage containers that have been successful in meeting these objectives have not yet been produced. Absent. As a result, bottles and ring-pull cans are currently the main practical beverage supply containers for consumers. This is because there are significant technical problems to be overcome in connection with wide-mouth containers, and practical solutions to this problem have not been successfully devised. The present invention aims to provide a practical beverage container which may be a wide-mouthed container (but the present invention is also applicable to other types of beverage containers).

  The present invention seeks to provide a beverage container with a closure means that can withstand the storage of liquids, including, for example, carbonic acid or other gases, and / or the pressure rise in the container due to high temperatures and / or impact loads, etc. Yes.

  According to a first aspect of the present invention, there is provided a carbonated beverage storage beverage container comprising a container body including an opening and a detachable closing means for closing the opening, the closing means providing an airtight seal to the opening. Has foil.

  According to a second aspect of the present invention, there is provided a beverage container comprising a container body including an opening and a detachable closing means for closing the opening, the closing means comprising a foil for sealing the opening, As a result, the force acts on the foil and reduces or suppresses the tendency of the foil to separate from the container by peeling so that the closing means can withstand higher internal pressures than otherwise. Arrangement configuration.

  In some embodiments, the closure means comprises a removable holding component or cap that fits over the foil.

  When using a cap, it is preferable to provide physical support to the foil, for example by limiting the extent to which it can be distorted by increased pressure in the container, strengthening the connection between the foil and the container, or both. . The cap may be generally circular and therefore rests around the foil around the opening, thereby helping to keep the foil in contact with the container. In some cases this may provide sufficient obstacles to limit the foil rupture due to internal pressure, but it will provide an obstacle to the deflection of the foil, especially in the center, but it will puncture the foil and / or In order to protect the foil from damage due to physical contact with external objects that may reduce the integrity, the cap preferably extends throughout the foil. Thus, the cap enhances and / or protects the foil-container connection and provides foil puncture protection.

  The container preferably has a lip with the foil joined around the opening, and the lip causes the force generated in the foil due to the pressure in the container to be at the junction between the foil and the lip (at the peel force). It is shaped to give the shear force predominantly.

  The lip may be shaped to have a generally flat area extending around the opening and inclined outwardly with respect to the axis of the opening, and the foil is bonded to the generally flat area.

  In a preferred arrangement, the normal to the generally flat area is at an angle α relative to the axis of the opening, and this angle α is joined to the generally flat surface when the foil is maximally deflected. The maximum deflection of the foil due to the radius of the opening (R) and the pressure in the container (D) so that the force acting on the foil at the point is approximately parallel to the surface and only applies a shear force to the joint therebetween. Selected in relation to

  The cap can be made from a range of materials, but is preferably formed from a plastic material such as polypropylene (PP) or polyethylene (PE), and can be formed by injection molding. The cap is preferably removably secured to the container by a snap fit and / or other securing means that holds it securely to the container. For example, means for releasing the cap may be provided to further simplify removal from the container. Venting means are also preferably provided to allow the pressure in the container to bleed before the cap and / or foil are completely removed. When the foil is attached to the container, controlled aeration can be provided as the foil is peeled away from the container.

  The foil can also be attached to the container around the opening by induction heating. The attachment to the container is strong enough to withstand the desired pressure level in the container, but when the cap is removed, the foil separates from the container, but remains attached to the cap and disengages with it. The attachment to the cap is preferably weaker than the attachment to the cap.

  In another arrangement, the foil is not attached to the container and can be sealed by simply being held in contact with the container by the cap or being pressed against the container by the cap.

  Where reference is made herein to a foil, it is an impermeable laminate comprising one or more layers that impart strength to the foil and one or more layers that attach the top and / or bottom of the foil to another article. Including goods. Such foils are widely used in other fields. When the foil is fixed by induction heating, an electric induction layer is necessary. This is usually a metal layer, most commonly an aluminum layer. The electrical induction layer is typically provided with one or more plastic coatings, such as polyethylene, that melt when the electrical induction layer is heated to bond the foil to an article held in contact therewith. Such foils can be bonded to both glass and plastic articles.

  The foil is preferably fixed to the container in a manner that can withstand an internal pressure of 1-2 bar or more (such as occurs when the carbonated beverage container is exposed to high temperatures). In addition to preventing the gas from leaving, the foil also protects the container from gas ingress, thus preventing contamination of the beverage and escaping. With such a foil, the beverage container can have a shelf life of at least 9 months (as is typically required for beer and other carbonated beverages sold in containers).

  Foil provides consumers with the assurance that if the foil is intact, the product has not been tampered with, previously opened, or otherwise exposed to the external environment. It can also provide tamper prevention. This function is further enhanced when the cap is made of a transparent material.

  The foil is preferably fixed to the container lip around the mouth, but is recessed in the container and fixed to the inner surface of the container, for example, at a position spaced from the container mouth, for example, 5 mm to 10 mm below the container lip. May be. This would be appropriate when the cap fits inside the container and is provided with a foil at its lower end. If the container is not filled with beverage to the lip, this also allows the foil to be positioned closer to the surface of the beverage so as to reduce the space left on the beverage. By removing the recessed foil in the container, the surface of the beverage is at a lower level in the container, and the container can be gripped at or above the foil level, so it can be made less spillable, Therefore, the foil can be peeled off in a more controlled manner.

  The container is typically formed of a plastic material such as polyethylene terephthalate (PET), or glass. The container is preferably shaped to resemble a conventional beverage container such as a beer glass shaped in the form of a bottle or some other shape.

  The opening of the container body is preferably a wide opening. “Wide mouth opening” means an opening of a size suitable for drinking from a container in the same way that a person drinks from a glass or similar beverage container (at least in the broadest sense). That is, in the broadest sense, the wide mouth opening of a container (in embodiments of the present invention having a wide mouth opening) usually makes the container a conventional narrow neck bottle and ring-pull can (usually not considered a comfortable drinking container) (As opposed to) to be suitable as a beverage container that can conveniently drink beverages supplied in the container. In practice, this requirement means that the diameter of the wide mouth opening of the container usually needs to be at least 40 mm, preferably 45 mm, more preferably at least 50 mm. Also, an excessively wide opening is usually difficult for consumers to drink, so the wide-mouth opening preferably has a diameter within 150 mm, more preferably within 100 mm, especially within 80 mm. A particularly preferred diameter range for the wide mouth opening is 50 mm to 80 mm, and examples of particularly preferred diameters include 53 mm and 63 mm.

  The container may have a narrow opening such as a bottle-type opening. Such an opening may have a diameter of, for example, less than 40 mm. Conventional standard bottle mouth sizes include diameters of 28 mm and 38 mm, and the openings may have such diameters.

  The container body preferably has no screws or screw sections on its outer surface. As a result, the container body is preferably comfortable for consumers to drink directly from the container body.

  As indicated at the beginning of this specification, the containers described herein may be used for other types of beverages, but the present invention is directed to carbonated and other sparkling beverages such as beer, cider. For the storage and supply of sparkling wine (including champagne), other foaming alcoholic beverages and non-alcoholic carbonated beverages, and effervescent beverages containing soda water and soft drinks containing carbon dioxide, or high pressure in containers It is particularly suitable for the storage of any other liquid that can be produced.

  Other preferred or optional features of the invention will be apparent from the following description and from the claims based on this specification.

  The invention also relates to the use of a beverage container of the type described comprising carbonated beverages and to a method for sealing such a container.

  The invention will now be further described, by way of example only, with reference to the accompanying drawings.

  As shown in FIGS. 1-10B, the foil can be used uniquely to seal the wide-mouth container, but it is preferably used with a closure means or cap that protects and / or strengthens the foil. Many different types of caps can be used, but this can be secured to the container in various ways. 1-3 show a first form of cap that can be used, FIGS. 4-5 show a cap of the second form, FIGS. 6-7 show a cap of the third form, FIG. 8 shows a cap of the fourth form, and FIGS. 9 to 10 show a cap of the fifth form.

  In the embodiment illustrated in FIGS. 1-3, the foil 20 is illustrated in FIG. 2A, but is omitted for clarity in the other figures.

  FIG. 1 shows a container body 10 having a wide-mouth opening 11 formed at the upper end, and a lid 12 having a first part 12A fixed to the body 10 and a second part 12B configured to be connected to the first part 12A. FIG. 3 shows an upper part of a beverage container comprising a closing means in the form of (the entire container is shown in FIG. 3).

  In the illustrated embodiment, the first part 12A includes a disk-shaped upper part 13 formed with a skirt 14 depending from the periphery thereof. The body 10 has an edge 15 projecting radially next to the wide-mouth opening 11, and the skirt 14 has an inner diameter that can be pushed onto the projecting edge 15. A thread 16 is provided on the radially outer surface of the skirt 14, and the second part 12B of the cap comprises an annular member having a thread 17 formed on its inner surface for engaging the thread 16 of the first part 12A. . The outer surface of the second part 12B has, for example, a rib so that it is easy to apply torque to the first part 12A by rotating the second part 12B with respect to the first part 12A by the user's hand when the screw is engaged. 17A, grooves 17B, and the like are formed. The second part 12B is optionally provided with a disc-like member 18 for carrying advertising material such as a trademark used for beverages contained in the container 10, for example. Alternatively, it may be provided on the upper surface of the upper part 13 of the first part 12A of the cap.

  An inclined flange 18 is provided at the free end of the skirt 12A, and its function will be described below.

  The skirt 14 and radial projection 15 are shaped such that the first part 12A of the cap is loosely snapped onto the container. That is, it is sufficient to hold the first part on itself, but can be removed by applying a pulling force by hand. In use, the cap second part 12B is typically connected to the first part 12A by engaging its individual screws in a first configuration. Next, the cap including the first part 12A and the second part 12B is pressed against the container so that the first part snaps onto the radial protrusion 15 and engages with the lower side thereof. Underneath the skirt 14 and the radial projections 15 are also preferably provided with mutually engageable components 19A, 19B to limit the rotational movement therebetween.

  Next, the second component 12B is further screwed into the first component 12A, so that the inclined flange 18 is biased inward to form a second configuration. This further secures the first part 12A under the radial projection 15 and creates a downward tension in the skirt 14, whereby the inner surface of the skirt 14 and / or the upper part of the first part 12A of the cap. The lower side of 13 is pressed against the container 10. The foil 20 (see FIG. 2A) is provided between the inner surface of the first component 12A and the container 10 so as to cover the wide opening 11.

  The foil 20 preferably includes an aluminum layer having a polymer layer formed on one or both sides thereof. The foil 20 can be welded to the container 10 and / or the first component 12A, for example, by induction heating. The foil is preferably arranged and configured so as to remain attached to the first part 12A when the container is opened and to come off with it. FIG. 2B shows a cap in which the first part 12A and the second part 12B are in the second configuration, that is, the second part 12B holds the first part 12A in a fixed relation to the container 10 as described above. .

  If it is desired to open the container, the second part 12B is partially unscrewed from the first part 12A so as to exit the second configuration. Therefore, the second part 12B is no longer held securely in engagement with the container, so that (if the foil 20 is not welded to the container and is only used as a sealing gasket) Pressurized gas can be vented between the container 10 and the foil 20. However, the first part 12 </ b> A of the cap is not blown off from the container 10 because the skirt 14 is engaged under the protrusion 15. In some cases, it may be a relatively loose engagement, for example as formed when the cap is first snapped to the body 10 as described above, or the second part 12B is still against the first part 12A. The flange 18 may be bent inward to be in a position where the engagement of the skirt 14 under the protrusion 15 is tight.

  Due to the screw engagement with the first part and / or the engagement between the hook-like protrusion 17C at the bottom edge and the lower part of the skirt 14 or the flange 18, the second part 12B is also prevented from blowing off.

  After such gas ventilation, the cap (with the first part 12A and the second part 12B connected to each other) can overcome the loose snap fit between the first part 12A and the protrusion 15 by hand. Can be pulled away from the container 10. If necessary, the second part 12B can be further unscrewed to loosen this engagement before pulling the cap away from the container.

  The second part 12B can be detached from the first part 12A completely unscrewed as desired before being pulled away from the first part 12A, but is still connected to each other so as to be pulled apart. It is preferable to design. In fact, the second part 12B may be designed so that once it is connected to the first part 12A, it cannot be separated therefrom, for example by ratchet means associated with thread attachment therebetween.

  In a preferred arrangement, the foil 20 is welded to the container body 10 so as to seal the mouth. In this case, venting is performed when the foil is removed from the container or begins to peel. Depending on the design, this can be done when the first part 12A is loosened and / or the cap is removed. The foil 20 can be welded to a cap such as the lower side of the first component 12A so that the foil 20 can be removed when the cap is removed from the container. Therefore, it is preferable that the welding connection between the foil 20 and the first component 12 </ b> A is stronger than the welding connection between the foil 20 and the container 10.

  The foil 20 is preferably circular so as to cover the wide mouth 11. If desired, this may extend to the outside of the edge 15. When the foil is fixed to the first component 12A, the foil may have an annular shape. For example, the outer periphery is fixed to the container and the inner periphery is fixed to the lower side of the first component 12A, or the lower side is fixed to the container. Then, the lower side is fixed to the lower side of the first component 12A.

  The second embodiment shown in FIGS. 4 and 5 includes a container body 21, a foil 22 that covers the mouth of the container body 21, and a cap 23 that is attached to the container body 21 on the foil 22.

  The container body has a lip 24 and a foil 22 extending over the lip 24. The cap is preferably a snap-fit plastic cap, although a metal cap that can be crimped to the lip 24 may be used.

  The cap 23 is shaped so as to be snapped onto the lip 24 of the container body 21. Alternatively, the cap 23 may be tightly fitted on the container body 21. The foil 22 is preferably fixed to the lip 24 by melting the plastic layer under the foil 22 by local induction heating and welding it to the lip 24. Alternatively or additionally, the foil 22 is crimped to the edge of the lip 24. If necessary, the outer surface of the container may be further sealed. It is also preferred to fix the foil to the cap 23 by melting the plastic layer on the top of the foil with local heating and welding it to the underside of the cap 23.

  In the illustrated embodiment, the cap 23 is provided with a tab 25 to assist in removing the cap. As shown in FIG. 2, a tab is connected around the cap, and weakened portions 26A, 26B are provided on each side thereof to provide a broken line that breaks when the tab 25 is lifted. The foil 22 is preferably connected to the underside of the tab 25 so that the foil 22 can also be lifted with the tab 25.

  The cap may be provided with additional V-shaped weakened areas 27A, 27B so that when the tab 25 is lifted, the pointed section 23A of the cap pivots into the container, pierces the foil 22, and vents the container. . It is recognized that this is similar to the action of a conventional ring pull provided on an aluminum can. Once the container has been vented, tab 25 is used to peel off cap 23 and the remaining portion of foil 22 from the container.

  The weakened portions 26A, 26B, 27A, 27B may comprise a thin area of the cap 23 formed, for example, by grooves cut or molded in the upper and / or lower surface of the cap 23.

  The illustrated tabs 25 are relatively thin, but may be other forms of tabs, such as relatively wide tabs that extend over the wider portion of the cap. The weakened portions 26A, 26B may be spaced apart by a distance greater than this, for example by a distance greater than half the diameter of the cap 23, for example.

  The beverage container shown in FIGS. 6 and 7 includes a container 30 in which an inner screw thread 30A is formed, and an integral cap 32 having a screw thread 32A on the outer surface of a lumen seal 33 depending from the upper portion 34. . The upper portion 34 of the cap has an anti-tamper collar 35 that extends above and engages the lip 30B of the container.

  A foil 36 is provided where the lumen seal 33 engages the sealing ring 37 on the inner wall of the container 30. The foil 36 can be joined to the lower edge of the lumen seal 33 and / or to the sealing ring 37. This may be performed when the foil is in place, but may be pre-bonded to any component prior to bonding the cap to the container.

  Cap 32 is connected to the container by threads 32A, 30A. Protrusions 32B and 30C are also provided on the cap and container, respectively, and act as stops, which prevent the cap 32 screw from unintentionally loosening until a predetermined torque is applied. When the cap is screwed in, the anti-tamper band is snapped onto the container lip 30B.

  In order to open the container, the screw of the cap 32 is loosened, and the tamper-proof band 35 is separated from the cap 32. As the cap is raised, the foil 36 is also lifted and cannot be peeled off from the sealing ring 37. Cap 32 can move to a vent position defined by the form of threads 32A, 30A and / or provide controlled venting by stripping foil 36, thereby performing cap 32. Is prevented from launching. The foil is preferably left attached to the lumen seal 33 so that it is removed with the cap 32.

  FIG. 8 shows a fourth embodiment of the invention in which the foil is used to seal the wide mouth container in conjunction with a closure means or cap that protects and / or strengthens the foil.

  FIG. 8A shows the container 110 in which the opening 111 is formed and the closing means including the foil 112, the cap 113 and the collar 114.

  The container is shaped to resemble a beer glass and has a lip 110A around its opening 111. The foil has a top portion 112A and a skirt 112B. The cap 113 includes one or more gaps 113A around it and has a threaded configuration 113B on its outer surface, preferably attached to itself by an integral hinge and having a tamper-proof clip 113C that carries a protrusion. The collar 114 includes a threaded configuration 114B on the inner surface for engaging the threaded configuration 113B of the cap, and a recess and hole 114C for receiving each clip and projection 113C.

  As shown in FIG. 8B, the foil 112 is held by the cap 113 in contact with the lip 110A. The cap 113 has a flange 113D that is snapped under the lip 110A and projects inwardly, and the collar 114 encloses the cap 113 by enclosing it so as to disengage the flange 113D from the lip 110A. To fix. The collar 114 is secured to the cap 113 by its individual threaded configuration 113B, 114B.

  To remove the closing means, the collar 114 is "unscrewed" from the cap 113 and the closing means is removed. Now, the cap 113 can be pry open from the container 110, and the disengagement of the flange 113D from the lip 110A is further facilitated by the gap 113. This is because when it is lifted from the container 110, the periphery of the cap 113 can be enlarged. The threaded configuration 113B of the cap 113B provides a lip that can be lifted to aid in stripping the cap 113.

  In the closed position, each flap 113C is folded up to engage and preferably weld to the collar 114 so that when the collar 114 is twisted off, the flap 113C remains attached to the integral hinge. The cap 113 is torn along the line to provide visual tampering prevention.

  FIG. 9C shows a longitudinal sectional view of a fifth embodiment in which the closing means comprises a foil 150 and a collar 151, and FIGS. 9A and 9B show a perspective view and a plan view of the collar 151.

  The collar includes a first part 151A in which a gap is formed, and a second part 151B that can be connected to the first part 151A to join both ends of the first part 151A. The second part 151B is hooked to one end of the first part 151A and has an overcenter mechanism 151C. Therefore, when the second part 151B is moved to the closed position, the second part 151B stays in this position and applies tension to the collar 151. Tighten it more securely around the periphery. As shown in FIG. 9C, the collar 151 is shaped to engage under the lip 152A of the container 152 and is arranged to grip the foil 50 more tightly when the collar is tightened.

  The part 151B is provided with a tab 151D, which can be lifted in the same way as a conventional ring pull to break the collar at one or more weak points 151E if it is desired to remove the collar 151 and open the container. . This action can also punch the foil 150.

  In arrangements where the foil is bonded to the container, the bonding between them is strong when subjected to shear forces, ie forces on the bonding surface, but debonding forces, ie, unbonded from the bonding surface, Weak when subjected to forces that tend to separate the foil from

  A second aspect of the present invention provides a joint that withstands the forces acting on the foil as a result of the pressure in the container in an arrangement that reduces or prevents the force created by the internal pressure from applying a peel force to the joint. Arises from the recognition that capacity can be improved or optimized.

  As the pressure in the container increases, the foil tends to bend or deflect outward. In conventional arrangements, this changes the angle at which the force in the foil is applied to the junction with the container, and thus tends to apply a peel force to it, even though the increase in internal pressure is relatively small, Begins to separate from the container.

  In the embodiments described above, this tendency is reduced by providing the foil with components such as caps or collars that provide physical support. The cap or collar limits the extent to which the foil can deflect due to internal pressure, thereby limiting the angular change in force applied to the joint by the foil. Alternatively or additionally, the cap or collar can be positioned just above the area where the foil is joined to the container to enhance the connection between the foil and the container so that the foil can be removed from the container. Either prevent it from leaving, or prevent the foil in the area of the joint from deflecting to a significant extent (even if the area of the foil away from the joint is significantly deflected), or both This reduces the tendency of the foil to apply peel force to the joint area. The collar surrounding the container also helps to hold the foil against the lip and / or the outer surface of the container.

  As described above, for example, as shown in FIGS. 5, 8B and 9C, the container has a lip, its outer portion has a curved contour, and the foil extends around this curved contour. It is preferable to be joined to it. Thus, the area of the foil joined to the container is increased compared to an arrangement having only a narrow joint area at the top of the lip. The foil may extend under the lip and may be joined to the underside of the lip. The foil may also extend beyond the lip and be joined to the outer surface of the container.

  10A and 10B show a further method for reducing the peel force due to internal pressure. In these arrangements, the lip of the container is shaped to prevent or minimize the peel force that occurs when the foil is deflected by internal pressure.

  FIG. 10A shows a schematic cross-sectional view of a container 160 having an opening with a radius R of, for example, 30 mm (such as used in a wide-mouth container). The foil 161 is joined to the container lip 162. The foil is shown bowed with a maximum deflection D of, for example, 8 mm at the center of the foil (as occurs in the aluminum foil at a pressure P of about 150-200 psi) due to the internal pressure P in the container 160.

  The lip 162 is shaped to have a substantially flat section 162A that is inclined outwardly with respect to the mouth axis XX of the container 160. In the cross-sectional view shown, the line N perpendicular to the flat area 160A is at an angle α with respect to the axis XX. The angle α can be deduced by the geometry of the container having the radius R and the foil having the maximum deflection D. For R = 30 mm and D = 8 mm, the angle α is about 30 °.

  The flat area 162A of course extends 360 ° around the lip of the container and is therefore part of the surface of the core about the axis XX, and the bowed part of the foil 161 is part of the spherical surface. The conical surface is almost tangent to this. Therefore, as shown in FIG. 10A, the force F in the foil due to the internal pressure P is applied substantially parallel to the flat surface 162A, and thus only applies a shear force to the joint between the foil 161 and the surface 162A.

  As the foil bends by a distance less than the maximum D, this exerts a force on the joint at a relatively small angle, the force acting on the first component parallel to the surface 160A and in the downward direction, i.e., contacting the foil with the surface 160A. It has the 2nd ingredient kept in a state. This is an arrangement in which, when the foil 161 is to be bent more than the maximum deflection D, the force applied to the joint by the foil 161 has only an upward component (they tend to peel off the foil from the surface 160A). It is preferable that Such a situation can be prevented by the nature or design of the foil 161 and / or by providing venting means to prevent the pressure P from reaching the level necessary to achieve this.

  Alternatively, the foil 161 exceeds the maximum deflection D when the pressure P reaches a certain threshold, for example 50 psi, and intentionally begins to vent to relieve the pressure P, thereby catastrophic for the container or closure. It can be designed to avoid failures.

  As shown in FIG. 10A, the outer portion 162B of the lip 162 preferably has a curved contour, and the joint between the foil 161 and the lip 162 preferably extends around the curved contour.

  Further, as shown in the drawing, it is preferable that at least a part 161 </ b> A of the foil projects on the lip 162. Thus, this portion 161A of the foil can form an opening member that can be gripped to lift the foil 161 from the lip 162 when the container 160 is to be opened (as shown by the dotted line in FIG. 10B). The force applied by the user's finger, for example, to lift the foil portion 161A primarily provides a peel force (rather than a shear force) at the joint between the foil 161 and the lip 162, thereby making it relatively easy Then, the foil 161 is detached from the container 160.

  Accordingly, in the illustrated arrangement, the user opens the container 160 by utilizing the fact that the joint is strong against the shearing force to withstand the pressure in the container 160 but weak against the peeling force. It is excellent in that it helps.

  The arrangement shown in FIG. 10B is similar to that shown in FIG. 10A, but the foil is designed to have a smaller maximum deflection D, for example 5 mm. Thus, for a container having a radius R of 60 mm and a maximum deflection D of 5 mm, the angle α is about 15 °.

  The above arrangement is intended to minimize the peeling force applied to the joint between the foil and the container by internal pressure, but in some cases, such peeling force is not eliminated but reduced. There is just enough. When the foil applies a force F at an angle θ to the face of the joint, this includes a shear component of F · cos θ and a peel component of F · sin θ. In known arrangements, θ can be 45 ° or more, so the peel force component exceeds the shear component. In some cases, it is sufficient to reduce θ below 45 ° so that the peel force component is less than the shear force component (but it is preferable to minimize the angle θ).

  It will be appreciated that instead of the flat surface 162A as described above, a downwardly curved surface may be used. The radially inner part of the joint surface (but not necessarily the innermost part of the joint) has less (preferably as small as possible) shear force applied by the foil with the maximum deflection D. Must be oriented as follows. However, the radially outer portion of the joined area may be curved downward as shown, for example, in FIGS. 10A and 10B. Thus, the width of the flat area 162A can actually be reduced to zero as long as the force F remains tangent to the curved contour of the lip at the point toward the inner portion of the joined area.

  In addition to the above, the foil can be constructed so as to reduce the amount of deflection at any internal pressure. This can be achieved, for example, by appropriately selecting the material of the laminated foil. In particular, a cross-laminated laminate may be used if one layer of the laminate is highly flexible or extensible in one direction compared to the vertical direction. For example, where two such layers are oriented in different directions (preferably perpendicular to each other).

1 is a partially assembled exploded view showing a first embodiment of a beverage container according to the present invention. It is the same figure as FIG. 1, and is a fragmentary sectional view which shows the closing means before an assembly. It is a figure similar to FIG. 1, and is a partial cross-sectional view showing a closing means in a sealed configuration. It is the same figure as FIG. 1, and is a fragmentary sectional view which shows the closure means of ventilation structure. FIG. 2 is two perspective views of the beverage container shown in FIG. 1 with one closing means in place and the other with the closing means removed. It is a perspective view which shows 2nd Embodiment of the drink container by this invention. It is sectional drawing of the container shown in FIG. FIG. 6 is a cross-sectional view showing a third embodiment of a beverage container according to the present invention showing a cap ready to be connected to the container. FIG. 6 is a corresponding view showing a cap when connected to a container. It is an assembly exploded perspective view showing the further embodiment of the beverage container concerning the present invention. It is a longitudinal cross-sectional view which shows a part of the drink container of FIG. 8A assembled. It is an assembly exploded perspective view showing a collar used in a 5th embodiment of the present invention. It is a figure which shows the function of the color of FIG. 9A. It is a figure which shows the function of the color of FIG. 9A. FIG. 6 is a schematic cross-sectional view illustrating a further embodiment of the present invention showing a further method of reducing peel force. FIG. 6 is a schematic cross-sectional view illustrating a further embodiment of the present invention showing a further method of reducing peel force.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container main body 11 Wide-mouth opening 12 Lid 12A 1st part 12B 2nd part 13 Upper part 14 Skirt 15 Protrusion 16 Thread 17 Thread 17A Rib 17B Groove 17C Hook-like protrusion 18 Flange 19A Interengageable component 19B Mutually 20 Foil 21 Container body 22 Foil 23 Cap 23A Pointed section 24 Lip 25 Tab 26A Weakened part 26B Weakened part 27A Weakened area 27B Weakened area 30 Container 30A Inner thread 30B Lip 32 Integral Cap 32A Thread 32B Protrusion 32C Protrusion 33 Lumen seal 34 Upper part 35 Anti-tampering band 36 Foil 37 Sealing seal 110 Container 110A Lip 111 Opening 112 Foil 112A Top part 112B Skirt 113 Cap 113A Gap 113B Threaded structure 113C Anti-tamper clip 113D Flange 114 Collar 114B Threaded structure 114C Hole 150 Foil 151 Collar 151A First part 151B Second part 151C Overcenter mechanism 151D Tab 151E Weak spot 152 Container 152A Lip 160 Container 160A Flat area 161 2 Lip 162A Flat surface 162B External component

Claims (25)

  A beverage container for storing carbonated beverages comprising a container body including an opening and a detachable closing means for closing the opening, wherein the closing means includes a foil that provides an airtight seal to the opening. A beverage container.   The beverage container according to claim 1, wherein the closing means includes a removable cap for fitting the foil.   The beverage container according to claim 2, wherein the foil is attached to the cap, and the cap and the foil can be removed together from the container body.   The foil is attached to the cap by heating the foil and melting a plastic layer on the foil while the foil is held in contact with at least a portion of the cap. The beverage container according to claim 3.   The foil is also attached to the container, and the attachment to the container is strong enough to withstand the desired pressure level in the container, but weaker than the attachment to the cap, thereby removing the cap The beverage container according to claim 4, wherein the foil is separated from the container, but is removed together with the cap while being attached to the cap.   The foil is not attached to the container and is held in contact with the container by the cap, or the opening is sealed by being pressed against the container by the cap. The beverage container according to claim 2 or 3.   The cap preferably provides physical support to the foil by limiting the extent to which it can be distorted by an increase in pressure in the container, strengthening the connection between the foil and the container, or both. The beverage container according to claim 1 or 2, wherein   The venting means is preferably provided so that the pressure in the container can be released before the cap and / or the foil is completely removed. Beverage containers.   9. A beverage container according to claim 8, wherein the foil is attached to the container and controlled aeration is performed as the foil is peeled from the container.   The beverage container according to any one of claims 1 to 9, wherein the foil is fixed to a lip of the container around the mouth of the beverage container.   The said foil is dented in the said container, The said foil is being fixed to the inner surface of this container in the position spaced apart from the opening | mouth of this container, The any one of Claims 1-9 characterized by the above-mentioned. Beverage container.   A beverage container comprising a container body including an opening and a detachable closing means for closing the opening, wherein the closing means comprises a foil for sealing the opening, and a force is applied to the foil due to pressure in the container. An arrangement that reduces or inhibits the tendency of the foil to separate from the container by acting and stripping so that the closure means can withstand higher internal pressures than otherwise. A beverage container characterized by   Whether the closure means comprises a holding component arranged on at least a part of the foil, limiting the range that can be distorted by internal pressure, or strengthening the connection between the foil and the container 13. A beverage container according to claim 12, wherein physical support is provided to the foil by, or both.   The container includes a lip in which the foil is bonded around the opening, and a force generated in the foil due to pressure in the container is applied to a bonding portion between the foil and the lip (in a peeling force). 14. Beverage container according to claim 12 or 13, characterized in that the lip is shaped so as to dominate the shear force.   The lip extends around the opening and is shaped to have a substantially flat area inclined outwardly with respect to the axis of the opening; and the foil is joined to the substantially flat area. 15. A beverage container according to claim 14 characterized in that:   When the normal to the substantially flat area is at an angle α with respect to the axis of the opening and the foil bends to the maximum, the force acting on the foil at the point where it is joined to the substantially flat surface is the surface. The angle α is the maximum of the foil due to the radius (R) of the opening and the pressure in the container so that only a shearing force is applied to the joint between the foil and the surface. The beverage container according to claim 15, wherein the beverage container is selected in relation to deflection (D).   The beverage container according to claim 16, wherein the opening has a radius (R) in a range of 25 mm to 35 mm, and the maximum deflection (D) is 5 mm or less.   17. Beverage container according to claim 16, characterized in that the opening has a radius (R) in the range of 25 mm to 35 mm and the maximum deflection (D) is between 5 mm and 10 mm.   The beverage container according to any one of claims 1 to 18, wherein the foil is fixed or laminated with a reinforcing member that limits a range in which the foil can be bent due to internal pressure.   20. The container according to any one of the preceding claims, wherein the container comprises a lip portion having a curved contour, and the joint between the foil and lip extends around the curvature of the contour. The beverage container according to claim 1.   The beverage container according to claim 20, wherein the foil is also bonded to the lower side of the lip.   The beverage container according to any one of claims 1 to 21, wherein the foil is joined to an outer surface of the container.   It has an opening member that is operated by a consumer, and most of the force acting on the foil due to the operation of the opening member tends to separate the foil from the container and assist in opening the container. The beverage container according to any one of claims 1 to 22, wherein the unsealing member is arranged so as to be oriented in the direction.   The beverage container according to claim 23, wherein the opening means is operated by lifting the opening means from the container.   25. The container body according to claims 1 to 24, characterized in that it does not have a screw or screw compartment outside its vicinity in the vicinity of the mouth of the container and thereby is suitable for drinking directly from the container body. The beverage container according to any one of the above.

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