Liquid Packaging Devices and Products

Abstract

A flexible liquid pouch (10) has two or more panels (14, 16) of a flexible liquid impermeable sheet material. The panels are bonded to one another along a set of seams (20, 22, 24, 26) to define an enclosed void space (V) within which to hold a liquid. A spout (12) is bonded to the sheet material, and defines a throughway that is in communication with the void space and allows for passage of liquid therethrough. A set of two or more mounting holes (62, 64) are formed within the seams, and are shaped to each receive a respective mounting formation (110) of a holding device (100).

Description

FIELD OF THE INVENTION

[0001] The present invention relates to liquid packaging devices, and related products for use with liquid packaging. In particular, the present invention relates to flexible liquid pouches, and related products for use with flexible liquid pouches.BACKGROUND

[0002] The selection of a containment package for liquids are selected based on many different and competing factors relating to handling, transport and storage, and environmental impact. For these reasons, the development in the area of liquid packaging has been continuous as new materials and manufacturing processes have become available.

[0003] At the outset, it is noted that within this specification, the term “package”, where used in a general sense, is intended to refer to a variety of liquid containment packaging devices. These may include (but not limited to) containers, vessels, flexible pouches, jars, bottles, flasks, pressurized and non-pressurized containers, sachets, cans, drums, and the like.

[0004] In many instances, a primary consideration of handling factors is the ease of handling of the package by the ultimate consumer. This is influenced by the level of effort required when tipping a package to pour / dispense the liquid within the package, and the predictability of the liquid flow whilst tipping the package. In many domestic applications, it is also desirable to be able to lift and pour liquid from the package by a single-handed action. The ease for producers to fill the package is a further consideration.

[0005] Some products are shipped in a rehydratable powder form within a liquid tight packaging device, for the consumer to add water (or other liquid) prior to the ultimate use.

[0006] Transport and storage requirements of a particular liquid relate to the shelf life of the packaged liquid, mitigating interaction between the package materials and the liquid itself, resistance of the package to damage / rupture, and minimizing loss within secondary bulk packaging.

[0007] Environmental considerations include the choice of material in the package and the amount of material within the package itself, which influences the overall mass of product to be shipped. Less material in the package reduces shipping costs, and can also reduce the package unit cost. However, lightweight packaging can compromise ease of handling, particularly by the end user.

[0008] In recent decades, flexible liquid pouches (also known as “stand up pouches” or simply “pouches”) have become increasingly popular. These flexible liquid packages are often made of three panels of a flexible plastic sheet material: two major panels form the side walls of the pouch, and the third panel forms a bottom of the pouch and extends between the lower edges of the side walls. Seams are formed by bonding edges of the panels. In some examples, the flexible liquid pouch can be provided with a rigid spout with a closure to facilitate opening and closing of the package. Such examples are sometimes referred to as “spout pouches”. Appropriate selection of the plastic sheet material can provide benefits in respect of the transport, storage, and environmental factors.

[0009] It is known that flexible liquid pouches have handling difficulties that inhibit adoption. These problems are exacerbated with increasing volumetric capacity of the flexible liquid pouch.

[0010] There is a need to address the above, and / or at least provide a useful alternative.SUMMARY

[0011] There is provided a flexible liquid pouch comprising:

[0012] two or more panels of a flexible liquid impermeable sheet material, the panels being bonded to one another along a set of seams to define an enclosed void space within which to hold a liquid;

[0013] a spout that is bonded to the sheet material, and defines a throughway that is in communication with the void space and allows for the passage of liquid therethrough; and

[0014] a set of two or more mounting holes that are formed within the seams, the mounting holes being shaped to each receive a respective mounting formation of a holding device.

[0015] Preferably, the flexible liquid pouch has a bottom on which the flexible liquid pouch is to rest when in an upright condition;

[0016] the spout is disposed in a top section of the flexible liquid pouch; and

[0017] the set of two or more mounting holes are disposed relative to the spout, whereby as the flexible liquid pouch is rotated away from the upright condition by at least 45° and in a direction to dispense liquid through the spout, the vertical separation of the set of two or more mounting holes from the spout increases.

[0018] Preferably, each of the mounting holes has a predefined geometry. More preferably, each of the mounting holes in the set is arranged within the seam at predefined separations relative to one another.

[0019] In certain embodiments, the set of two or more mounting holes are arranged within the respective seam at predefined separations from the peripheral edges of flexible liquid pouch. Alternatively or additionally, the flexible liquid pouch forms a fin-like element that is formed by bonding panels of the pouch, and the set of mounting holes are arranged within the fin-like element. In some forms, the fin-like element is a continuation of one or more seams of the flexible liquid pouch.

[0020] Preferably, the mounting holes extend through the fin-like element in a direction that is generally transverse to the direction of the throughway, when the enclosed void space is evacuated.

[0021] The panels of the flexible liquid pouch can include two major panels that each have two panel side edges, wherein the seams of the flexible liquid pouch include side seams that are each defined by aligned panel side edges that are bonded to one another. Alternatively or additionally, the major panels of the flexible liquid pouch can also each include a panel upper edge, wherein the seams of the flexible liquid pouch include a top seam that is defined by aligned panel upper edges that are bonded to one another.

[0022] Preferably, the throughway of the spout extends in a direction that is oblique to the length direction of at least one of side seams, and / or the length direction of the top seam.

[0023] There is also provided a holding device for a flexible liquid pouch having flexible liquid impermeable sheet material that is assembled to define an enclosed void space within which to hold a liquid, and a spout with a throughway that is in communication with the void space, and that is secured to the sheet material, the holding device comprising:

[0024] a frame that includes a base section defining bottom surfaces of the holding device on which to rest the holding device, and an upper section that is spaced from the base section; and

[0025] a spout retention formation that is integral with or attached to the upper section of the frame, the spout retention formation being arranged to releasably receive the spout of the flexible liquid pouch, and to retain the spout in a predefined position relative to the frame whilst dispensing liquid from the pouch through the spout.

[0026] In at least some embodiments, the spout retention formation includes at least one catch that is resiliently deflectable so as to deflect during location of the spout within the spout retention formation, and then return towards a neutral position to releasably retain the spout in the predefined position. Preferably, the or each catch adopts its neutral position when the spout is interconnected with the spout retention formation. Preferably, the or each catch also deflects during removal of the spout from the spout retention formation.

[0027] Preferably, the spout retention formation has two catches.

[0028] In at least some embodiments, the spout includes a neck that defines at least part of the throughway, and a base with one or more portions projects laterally with respect to the neck, and the or each catch includes a lug that is located so as to overlap with the base of the spout when the spout is interconnected with the spout retention formation to thereby retain the spout in the predefined position.

[0029] In certain embodiments, the spout includes a neck that includes a non-cylindrical section, and the spout retention formation includes an abutment formation that has a shape that is complementary of the non-cylindrical section,

[0030] wherein, when the spout is interconnected with the spout retention formation, the non-cylindrical section is at least partly disposed within the abutment formation such that interference between the neck and the spout retention formation inhibits rotation of the spout relative to the holding device.

[0031] In an alternative embodiment, the spout includes a neck that includes a non-cylindrical section, and the spout retention formation includes an abutment formation that has a shape that is complementary of the non-cylindrical section,

[0032] and wherein, the spout is inserted into the abutment formation by rotation of the spout relative to the spout retention formation to interconnect, and, when the spout is interconnected with the spout retention formation, the non-cylindrical section is at least partly disposed within the abutment formation such that interference between the neck and the spout retention formation inhibits further rotation of the spout relative to the holding device.

[0033] In examples in which the spout retention formation is integral with the frame, the abutment formation can be in the form of a notch with a mouth that opens to one side of the frame.

[0034] In some embodiments, the holding device also comprises a handle by which a user can grasp the holding device to work the holding device, including whilst dispensing liquid from the pouch. In certain examples, the handle is integrally formed with the frame.

[0035] In certain examples, the frame includes a primary frame portion that defines the upper section and at least part of the base section, and includes structural sections that are configured to transfer load from the upper section applied to the frame via the flexible liquid pouch to the base section.

[0036] In some embodiments, the holding device further comprises a mounting formation that is integral with or attached to the frame, wherein a portion of the flexible liquid pouch is to be mounted to the mounting formation thereby retain that portion of the flexible liquid pouch relative to the frame.

[0037] Preferably, the mounting formation is integral with or attached to the upper section of the frame. More preferably, the mounting formation is spaced from the spout retention formation. Even more preferably, the mounting formation is positioned relative to the spout retention formation such that the vertical separation of the mounting formation from the spout retention formation increases, as the holding device and the flexible liquid pouch are rotated away from an upright condition by up to at least 45° and in a direction to dispense liquid through the spout.

[0038] Preferably, the mounting holes extend through the flexible liquid pouch in a direction that is generally transverse to the direction of the throughway, when the enclosed void space is evacuated, and wherein the mounting formation is configured to resist movement of the portion of the flexible liquid pouch that defines the set of two or more mounting holes towards the spout retention formation.

[0039] In at least some embodiments, the flexible liquid impermeable sheet material is assembled to form seams, and the set of mounting holes are arranged within one of the seams, and wherein the mounting formation includes a set of mounting studs, and wherein the mounting holes and mounting studs are complementary of one another to thereby facilitate retaining of the flexible liquid pouch to the frame.

[0040] Preferably, the mounting formation includes a web that extends inwardly from outer edge portions of the frame, and the mounting studs are supported by the web.

[0041] Each of the mounting studs has a body portion with a radially outwardly oriented surface.

[0042] In some examples, the body portion of each mounting stud has a radially outwardly oriented surface that defines a cylinder with a diameter that is equal to the diameter of the mounting holes.

[0043] In some alternative examples, the body portion of each mounting stud has a radially outwardly oriented surface that is defined by:

[0044] a major cylindrical segment having a radius that is substantially equal to the radius of the mounting holes, and

[0045] a minor cylindrical segment having a radius that is less than the radius of the mounting holes.

[0046] Preferably, the circumferential length of the major cylindrical segment is greater than the circumferential length of the minor cylindrical segment.

[0047] In some preferred examples, the ratio of the circumferential length of the major cylindrical segment to the circumferential length of the minor cylindrical segment is at least 2:1. More preferably, the ratio of the circumferential length of the major cylindrical segment to the circumferential length of the minor cylindrical segment is approximately 3:1.

[0048] Each of the mounting studs has a central aperture. Preferably, the central aperture of each mounting stud is shaped such that the wall thickness of the respective mounting stud is greater in the portion defined by the major cylindrical segment compared with the wall thickness in the portion defined by the minor cylindrical segment. More preferably, the central aperture of each mounting stud is substantially cylindrical.

[0049] The mounting formation can include a tongue that projects from at least one of the mounting studs, the tongue being shaped to inhibit the flexible liquid pouch sliding off the radially outwardly oriented surface of the respective mounting stud.

[0050] In some examples, the mounting formation includes one or more tongues that each project from a respective one of the mounting studs, the tongues being shaped to inhibit the flexible liquid pouch sliding off the radially outwardly oriented surface of the respective mounting stud.

[0051] Preferably, the or each tongue projects in a direction that is at least partially away from the spout retention formation.

[0052] Alternatively or additionally, the or each tongue is configured to overlap with the minor cylindrical segment of the respective mounting stud.

[0053] In at least some embodiments, the spout retention formation and the mounting formation are separated by the frame of the holding device so as to substantially correspond with the separation of the spout and the mounting holes in the flexible liquid pouch.

[0054] Preferably, at least part of the primary frame portion has a cross-sectional section shape that provides resistance to bending and / or torsion loads.

[0055] In some examples, the frame is shaped to have the flexible liquid pouch disposed inwardly of the primary frame portion when the spout is in the predefined position and the mounting holes are located on the mounting studs.

[0056] The internal width of the primary frame portion narrows in the direction away from the upper section.

[0057] In some examples, the primary frame portion defines at least part of the bottom surfaces of the holding device.

[0058] The frame can further comprise a first containment plate that is disposed in the base section of the frame and adjacent the primary frame portion, the first containment plate being shaped to inhibit movement of the flexible liquid pouch past the primary frame portion. Preferably, the first containment plate is disposed beneath the spout retention formation. Alternatively or additionally, the first containment plate is disposed at an opposite corner of the frame to the mounting formation.

[0059] The frame can further comprise a second containment plate that is disposed in the lower region of the frame and opposite the first containment plate, the second containment plate being shaped to inhibit movement of the flexible liquid pouch past the primary frame portion in a direction opposite to the first containment plate. Preferably, the second containment plate is disposed beneath the mounting formation. Alternatively or additionally, the second containment plate is disposed at an opposite corner of the frame to the spout retention formation.

[0060] In some examples, the first and / or second containment plates are removably connectable to the primary frame portion.

[0061] The holding device can include one or more secondary frame portions, and each secondary frame portion includes a respective one of the first and second containment plates. The primary frame portion can include first connectors, and each of the second frame portions include second connectors that mate with the first connectors to connect the secondary frame portions to the primary frame portions.

[0062] Preferably, the lower edges of the first and / or second containment plates define bottom surfaces of the holding device.

[0063] Preferably, the surface of the first and second containment plates that is to face towards the flexible liquid pouch includes non-planar side portions. More preferably, the surface of the first and second containment plates that is to face towards the flexible liquid pouch includes a substantially planar central portion.BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order that the invention may be more easily understood, embodiments will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0065] FIG. 1: is a perspective view of a flexible liquid pouch according to a first embodiment;

[0066] FIG. 2: is a schematic left side view of the flexible liquid pouch of FIG. 1, showing the pouch in its upright condition;

[0067] FIG. 3: is a schematic left side view of the flexible liquid pouch of FIG. 1, and showing the pouch in evacuated condition;

[0068] FIG. 4: is an enlarged view of Region A in FIG. 3;

[0069] FIG. 5: is a left side view of the flexible liquid pouch of FIG. 3, showing the pouch rotated by 45° from its upright condition;

[0070] FIG. 6: is a left side view of a flexible liquid pouch of FIG. 1, together with a holding device according to a second embodiment;

[0071] FIG. 7: is a right side view of the flexible liquid pouch and a holding device shown in FIG. 6;

[0072] FIG. 8: is a perspective view of the holding device shown in FIG. 5;

[0073] FIG. 9: is a right side view of the holding device shown in FIG. 8;

[0074] FIGS. 10 to 12: are enlarged views of Region Cin FIG. 9;

[0075] FIG. 13: is an enlarged view of Region Din FIG. 9;

[0076] FIG. 14: is a cross section view of FIG. 14, as viewed in the direction XII-XII;

[0077] FIG. 15: is an enlarged view of Region Bin FIG. 6;

[0078] FIG. 16: is a disassembled view of the holding device shown in FIG. 8;

[0079] FIG. 17: is a left side view of the primary frame portion of the holding device shown in FIG. 8; and

[0080] FIG. 18: is a front view of one of the secondary frame portions of the holding device shown in FIG. 8.DETAILED DESCRIPTIONFIGS. 1 to 5 show a flexible liquid pouch 10 according to a first embodiment. The pouch 10 includes a spout 12, and flexible liquid impermeable sheet material. The sheet material is assembled to define an enclosed void space within which to hold a liquid. In FIGS. 2, 3, and 5, the void space is indicated by arrows V.

[0082] In the illustrated example, the pouch 10 has three panels of the sheet material: two major panels 14, 16, and a bottom panel 18. The pouch 10 has two bottom edges 20, a first side edge 22, a second side edge 24, and an upper edge 26. The spout 12 is disposed within the top section of the pouch 10, and adjacent the first side edge 22 and the upper edge 26.

[0083] The pouch 10 is assembled such that the bottom panel 18 is positioned between the two major panels 14, 16. Further, the bottom panel 18 is folded along a fold line that is parallel to the bottom edges 20 of the two major panels 14, 16. The location of the fold line in the bottom panel 18 is indicated in FIGS. 2 and 3 by broken line F.

[0084] Further, panels 14, 16, 18 are bonded to one another along a set of seams (described in further detail below). The panels 14, 16, 18 together with the bonding at the seams create the void space V. The materials used for the pouch 10 are able to fuse under heat and pressure. Accordingly, the seams are formed by applying heat and pressure to the overlapped sheets.

[0085] In this example, the set of seams in the pouch 10 include:

[0086] a pair of bottom seams 28 (one of which is indicated in FIG. 3), each of which bonds part of the bottom panel 18 to a respective one of the major panels 14, 16, in regions adjacent the bottom edge;

[0087] a first upper side seam 30, which bonds lateral edge portions of the two major panels 14, 16 to one another, and which extends upwardly from the fold line F and at a first long side of the pouch 10;

[0088] a first lower side seam 32, which bonds lateral edge portions of the bottom panel 18 together with the lateral edge portions of the two major panels 14, 16, and which extends downwardly from the fold line F towards the bottom edge 20 at the first long side of the pouch 10;

[0089] a second upper side seam 34, which bonds edge portions of the two major panels 14, 16 to one another, and which extends upwardly from the fold line F and at a second long side of the pouch 10;

[0090] a second lower side seam 36, which bonds lateral edge portions of the bottom panel 18 together with the lateral edge portions of the two major panels 14, 16, and which extends downwardly from the fold line F towards the bottom edge 20 at the second long side of the pouch 10; and

[0091] a top seam 38, which bonds upper edge portions of the two major panels 14, 16 to one another along an upper edge 26 of the pouch 10.

[0092] The pair of bottom seams 28 and the lower side edge seams 32, 36 create a pair of gussets (indicated by arrows G, in FIGS. 2 and 3) adjacent the bottom edges 20 of the pouch 10. Each gusset is located between the bottom seams 28 and the respective first and second lower side seams 32, 36.

[0093] Due to the flexible nature of the sheet material, and the locations of the seams, the volume of the enclosed void space Vis changeable from a minimum to a maximum. When the void space is evacuated, the major panels 14, 16 are drawn up against one another and the bottom panel 18 is folded along the fold line F, such that the enclosed void space has a negligible (near zero) volume.

[0094] As the pouch 10 is filled with fluid, the volume of the void space V increases. To this end, the major panels 14, 16 distend outwardly away from one another, and the bottom panel 18 partially unfolds, and the centre of the bottom panel 18 distends towards the bottom edges 20 of the pouch 10. In this condition, the bottom edges 20 of the pouch 10 adopt a generally oblong shape. It is in this condition, that the pouch 10 can be placed on the bottom edges 20. The pouch 10 adopts an upright condition when supported by the bottom edges 20.

[0095] The shapes of the bottom seams 28 are such that the bottom edges 20 form a general oblong shape when the bottom panel 18 is unfolded to its maximum extent.

[0096] In some examples, the pouch 10 is able to be self-supporting when the void space V is at its maximum volume, so as to stand in the upright condition on its bottom edges 20. The spout 12 defines a throughway that is in communication with the void space and allows for the passage of liquid therethrough. To this end, liquid within the pouch 10 is to be dispensed via the throughway in the spout 12, as indicated by arrow L in FIG. 4. If desired, the pouch 10 can also be filled with product (such as liquid, or a dry powder) via the throughway in the spout 12.

[0097] In the illustrated example, the spout 12 has a base 40 that is shaped to facilitate bonding of the spout 12 to the major panels 14, 16 by heat sealing. A neck 42 projects outwardly from base 40, with the throughway extending through both the base 40 and the neck 42. As shown in FIG. 4, the spout 12 has upper and lower flanges 44, 46 that extend radially from the neck 42. The lower flange 46 is adjacent the base 40. The upper flange 44 is spaced from the lower flange 46 by a gripping formation 48. The radially outer surface of the gripping formation 48 has a non-cylindrical section; in other words, the cross section of the gripping formation 48 is non-circular in planes that are transverse to the throughway.

[0098] The gripping formation 48 is structure that is suitable for holding of the spout 12, and hence the pouch 10, by some filling machines, in certain packaging and processing operations.

[0099] The gripping formation 48 of the illustrated spout 12 has a pair of planar faces 50, 52 that respectively face outwardly towards the first upper side seam 30 and the top seam 38. In addition, the gripping formation 48 includes ribs 54 (one of which is shown in FIG. 4) that are disposed between the planar faces 50, 52 and are oriented outwardly with respect to the major panels 14, 16 of the pouch 10. Each rib 54 is also parallel with the throughway.

[0100] The neck 42 has an external thread 56, and an internally threaded closure 58 is provided to close and seal the spout 12.

[0101] The major panels 14, 16 of the pouch 10 are shaped to have an oblique edge 60 that extends obliquely to both the upper edge 26 and also the first upper side seam 30. The spout 12 is bonded to the major panels 14, 16 adjacent the oblique edge 60. As will be apparent from the Figures, the neck 42 of the pouch 10 is inclined relative to both the upper edge 26 and the first upper side seam 30.

[0102] The pouch 10 includes two mounting holes 62, 64 that are formed within selected ones of the set of seams. In this particular example, the width of the top seam 38 and the second upper side seam 34, within the region that is adjacent the intersection of the second side edge 24 and the upper edge 26 increases to create a fin-like element 66. The two mounting holes 62, 64 are formed within the fin-like element 66.

[0103] As will be observed from the drawings, the fin-like element 66 is a continuation of the top seam38 and the second upper side seam 34, whereby the bonded portions of the major panels 14, 16 extends further inwardly of the upper edge 26 and second side edge 24, when compared with the top seam 38 and second upper side seam 34.

[0104] The two mounting holes 62, 64 are of a predefined geometry. Further, the two mounting holes 62, 64 are arranged at predefined separations from the second side edge 24 and upper edge 26 of the pouch 10, and at predefined separations relative to one another. These geometric characteristics of the pouch 10 and the two mounting holes 62, 64 facilitate the use of the two mounting holes 62, 64 with a holding device, as discussed in further detail below in reference to FIGS. 6 to 9, 12, and 13.

[0105] The two mounting holes 62, 64 are disposed relative to the spout 12, such that as the pouch 10 is rotated away from the upright condition by at least 45° and in a direction to dispense liquid through the spout 12, the vertical separation of the mounting holes 62, 64 from the spout 12 increases. As is apparent from FIG. 3, which shows the spout 12 in its upright condition, the spout 12 and the two mounting holes 62 are approximately level. In contrast, rotation of the spout 12 from the upright condition to dispense liquid causes the two mounting holes 62 to be elevated relative to the spout 12, as indicated in FIG. 5 by arrow h.

[0106] FIGS. 6 and 7 show a holding device 100 according to another embodiment, together with the pouch 10 mounted to the holding device 100. The holding device 100 is shown in isolation in FIGS. 8 to 14.

[0107] The holding device 100 has a frame, which in this particular example is in the form of a primary frame portion 102, and a pair of secondary frame portions 104a, 104b. The frame has a base section defining bottom surfaces 106 of the holding device 100, and an upper section that is spaced from the base section. The holding device 100 can rest on the bottom surfaces 106 in an upright condition, as shown in FIGS. 6 and 7.

[0108] The holding device 100 has a spout retention formation 108 (see FIG. 7) that is arranged to releasably receive the spout 12 of the pouch 10, and a mounting formation 110 that is able to retain the part of the pouch 10 that defines the two mounting holes 62, 64 relative to the frame. The spout retention formation 108 and mounting formation 110 are located within the upper section of the frame. The pouch 10 is mountable to the frame of the holding device 100 by interconnections with the spout retention formation 108 and mounting formation 110.

[0109] The spout retention formation 108 is able to retain the spout 12 in a predefined position relative to the frame whilst dispensing liquid from the pouch 10 through the spout 12. In this way, a user of the pouch 10 with holding device 100 may have confidence that the pouch 10 is securely held and located while they dispense liquid. The holding device 100 also has a handle 112 that a user can grasp to work the holding device 100, including whilst dispensing liquid from the pouch. In this illustrated example, the handle 112 is integrally formed with the primary frame portion 102.

[0110] In this example, both the spout retention formation 108 and mounting formation 110 are integral with the frame.

[0111] The spout retention formation 108 is shown in detail in FIGS. 10 to 12. The spout retention formation 108 includes two catches 114 that are resiliently deflectable so as to deflect during location of the spout 12 within the spout retention formation 108. Once the spout 12 is located in a predefined position within the spout retention formation 108, the two catches 114 return towards a neutral position to thereby releasably retain the spout 12 at that predefined position. The particular forms of the spout retention formation 108 and the spout 12 in this example are such that each catch 114 adopts its neutral position when the spout 12 is interconnected with the spout retention formation 108.

[0112] Each catch 114 includes a lug 116 that is located so as to overlap with the pouch 10 when the spout 12 is interconnected with the spout retention formation 108. The overlap acting to retain the spout 12 in the predefined position. The lugs 116 project inwardly with respect to the primary frame portion 102 of the frame.

[0113] FIG. 15 illustrates schematically the overlap of the lugs 116 with the pouch 10. In this particular example, the lugs 116 overlap with the base 40 of the spout 12.

[0114] As will be appreciated, the catches 114 also deflect during removal of the spout 12 from the spout retention formation 108.

[0115] An aperture 118 is formed between each catch 114 and an inwardly adjacent part of the primary frame portion 102. The apertures 118 are readily apparent in FIG. 7. Each catch 114 is interconnected with other parts of the frame at its two opposing ends. In this way, each catch 114 behaves in a manner similar to a leaf spring. As shown particularly in FIG. 10, each lug 116 is generally centred in the lengthwise direction of the respective catch 114.

[0116] The spout retention formation 108 also includes an abutment formation 120 that has a shape that is complementary of the non-cylindrical section of the neck 42 of the spout 12. When the spout 12 is interconnected with the spout retention formation 108, the non-cylindrical section is at least partly disposed within the abutment formation 120. Accordingly, interference between the neck 42 and the spout retention formation 108 inhibits rotation of the spout 12 relative to the holding device 100. As will be appreciated, the spout 12 being received in the abutment formation 120 is beneficial to appropriate positioning of the spout 12 with respect to the holding device 100. Further, the interference holds the spout 12 in position whilst a user is removing or attaching the closure 58.

[0117] In this particular example, the abutment formation 120 has a shape that at least partially complements the gripping formation 48. Further, the abutment formation 120 is in the form of a notch with a mouth that opens to one side of the frame. The notch is shaped with a pair of opposing major surfaces 122 against which the planar faces 50, 52 of the gripping formation 48 are to locate. The notch is also shaped with a secondary recess 124 that is to receive the rib 54 on one side of the spout 12. The above described interference is achieved by way of the planar faces 50, 52 abutting against the opposing major surfaces 122 of the notch. Similarly, by way of the rib 54 against the surfaces defining the secondary recess 124.

[0118] The mounting formation 110 is shown in detail in FIGS. 13 and 14. In this example, the mounting formation 110 includes a web 126 that extends inwardly from outer edge portions of the frame, and two mounting studs 128, 130 that are supported by the web 126. The mounting studs 128, 130 are shaped to complement the two mounting holes 62, 64. In this way, the two mounting studs 128, 130 facilitate retaining the pouch 10 to the frame of the holding device 100.

[0119] Each of the mounting studs 128, 130 has a body portion with a radially outwardly oriented surface. The body portion of each mounting stud 128, 130 has a radially outwardly oriented surface that is defined by a major cylindrical segment 132a, 132b, and a minor cylindrical segment 134a, 134b. Each major cylindrical segment 132a, 132b has a radius that is substantially equal to the radius of the mounting holes 62, 64. Each minor cylindrical segment 134a, 134b has a radius that is less than the radius of the mounting holes 62, 64. In this example, each mounting stud 128, 130 is configured such that the circumferential length of the major cylindrical segment 132a, 132b is greater than the circumferential length of the minor cylindrical segment 134a, 134b.

[0120] The separation of the mounting studs 128, 130 is substantially the same as the separation of the two mounting holes 62, 64 of the pouch 10. In this way, the pouch 10 and holding device 100 are mutually configured for cooperative use together.

[0121] The mounting formation 110 includes tongues 136a, 136b that each project from a respective one of the mounting studs 128, 130. The tongues 136a, 136b are shaped to inhibit the pouch 10 sliding off the radially outwardly oriented surface of the respective mounting stud 128, 130.

[0122] As will be apparent, the tongues 136a, 136b overlaps with the minor cylindrical segment 134a, 134b of the respective mounting stud 128, 130. Further, each tongue 136a, 136b projects in a direction that is at least partially away from the spout retention formation 108.

[0123] The pouch 10 is attached to the mounting formation 110 by a procedure involving:

[0124] a. passing the two tongues 136a, 136b through a respective two mounting holes 62, 64;

[0125] b. locating the fin-like element 66 of the pouch 10 against the minor cylindrical segments 134a, 134b;

[0126] c. and, with the pouch 10 and holding device 100 in the arrangement described in (b) above, manipulating the fin-like element 66 such that the body portions of the mounting studs 128, 130 wholly extending through the two mounting holes 62, 64.

[0127] Detachment of the pouch 10 from the mounting formation 110 involves reversing this procedure.

[0128] The diameter of each mounting stud 128 in planes that are parallel with the web 126 and that extend through the respective tongue 136a, 136b is greater than the diameter of the two mounting holes 62, 64. Accordingly, once the pouch 10 is mounted on the mounting formation 110 with the body portions of the mounting studs 128, 130 wholly extending through the two mounting holes 62, 64, the mounting formation 110 inhibits unintended detachment of the pouch 10 from the holding device 100.

[0129] It is intended that the pouch 10 is to be mounted on the holding device 100 by first attaching the portion of the pouch 10 with the two mounting holes 62, 64 to the mounting formation 110, and then locating the spout 12 within the spout retention formation 108. Removal of the pouch 10 from the holding device 100 involves reversing this procedure.

[0130] It will be apparent from an inspection of FIGS. 6 and 7 that in this illustrated example, the spout retention formation 108 and the mounting formation 110 are separated by the frame of the holding device 100 so as to substantially correspond with the separation of the spout 12 and the mounting holes 62, 64 in the pouch 10. Accordingly, when the pouch 10 is mounted on the holding device 100, substantially all of the slack is taken out of the sheet material of the pouch 10 that is between the spout 12 and the two mounting holes 62, 64. In this way, the pouch 10 is well retained on the holding device 100.

[0131] The primary frame portion 102 has a cross-sectional section shape that provides resistance to bending and / or torsion loads. In this way, load applied to the upper section of the frame, for instance via the flexible liquid pouch, are transferred to the base section of the frame. Further, the primary frame portion 102 is sufficiently rigid to be supported from the handle in various conditions, including the upright condition, and whilst dispensing liquid from the pouch 10.

[0132] The frame of the holding device 100 is shaped to have the pouch 10 disposed inwardly of the primary frame portion 102, when the spout 12 is in the predefined position on the spout retention formation 108, and the mounting holes 62, 64 are located on the mounting studs 128, 130.

[0133] In the illustrated example, the primary frame portion 102 encircles the pouch 10 in a direction that generally follows the seams. In addition, the internal width of the primary frame portion 102 narrows in the direction away from the upper section.

[0134] A first of the secondary frame portions 104a is disposed beneath the spout retention formation 108, and at a diagonally opposite corner of the primary frame portion 102 to the mounting formation 110. The second of the secondary frame portions 104b is disposed beneath the mounting formation 110, and at a diagonally opposite corner of the frame to the spout retention formation 108. As shown particularly in FIG. 17, in this example the primary frame portion 102 defines a part of the bottom surfaces 106 of the holding device 100. The two secondary frame portions 104a, 104b also define parts of the bottom surfaces 106 of the holding device 100. As such, the secondary frame portions 104a, 104b are to form part of the base section of the frame, as shown most clearly in FIGS. 8 and 9.

[0135] Turning back to FIGS. 16 through 18, in this particular embodiment, the pair of secondary frame portions 104a, 104b are identical and interchangeable. The primary frame portion 102 has first connectors 138, and each of the secondary frame portions 104a, 104b has a second connector 140. Accordingly, the secondary frame portions 104a, 104b are removably connectable to the primary frame portion 102 by interconnection of the first and second connectors 138, 140.

[0136] Each secondary frame portion 104 includes a containment plate 142 that defines a broad surface 144 against which the lower parts of the two major panels 14, 16 are to rest, when the pouch 10 is mounted on the holding device 100. The second connector 140 of each secondary frame portion 104 is on the opposing side of the two containment plates 142 to the broad surface 144. Between the two containment plates 142, a part of the primary frame portion 102 provides vertical support to the bottom of the pouch 10. Accordingly, the two containment plates 142 inhibit movement of the pouch 10 outwardly from within the primary frame portion 102.

[0137] The first and second connectors 138, 140 are mutually configured to resist disconnection, once interconnected. However, in some alternatives, the frame may be formed as a unitary item. In some other alternatives, the secondary frame portions 104a, 104b are to be substantially permanently connected to the primary frame portion 102 once the interconnection is made.

[0138] Each secondary frame portion 104 has a pair of semi-circular recesses 146 at each end of the second connector 140. The semi-circular recesses 146 receive complementary shaped semi-circular portions of the primary frame portion 102. In this way, relative movement of the interconnected primary frame portion 102 and secondary frame portions 104a, 104b is prevented, which contributes to strength and stability in the frame, and hence the holding device 100.

[0139] Throughout this specification and the claims which follow, unless the context requires otherwise, the word “comprise”, and variations such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.

[0140] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.

Examples

Embodiment Construction

FIGS. 1 to 5 show a flexible liquid pouch 10 according to a first embodiment. The pouch 10 includes a spout 12, and flexible liquid impermeable sheet material. The sheet material is assembled to define an enclosed void space within which to hold a liquid. In FIGS. 2, 3, and 5, the void space is indicated by arrows V.

[0082]In the illustrated example, the pouch 10 has three panels of the sheet material: two major panels 14, 16, and a bottom panel 18. The pouch 10 has two bottom edges 20, a first side edge 22, a second side edge 24, and an upper edge 26. The spout 12 is disposed within the top section of the pouch 10, and adjacent the first side edge 22 and the upper edge 26.

[0083]The pouch 10 is assembled such that the bottom panel 18 is positioned between the two major panels 14, 16. Further, the bottom panel 18 is folded along a fold line that is parallel to the bottom edges 20 of the two major panels 14, 16. The location of the fold line in the bottom panel 18 is indicated in FIGS....

FIELD OF THE INVENTION

[0001] The present invention relates to liquid packaging devices, and related products for use with liquid packaging. In particular, the present invention relates to flexible liquid pouches, and related products for use with flexible liquid pouches.BACKGROUND

[0002] The selection of a containment package for liquids are selected based on many different and competing factors relating to handling, transport and storage, and environmental impact. For these reasons, the development in the area of liquid packaging has been continuous as new materials and manufacturing processes have become available.

[0003] At the outset, it is noted that within this specification, the term “package”, where used in a general sense, is intended to refer to a variety of liquid containment packaging devices. These may include (but not limited to) containers, vessels, flexible pouches, jars, bottles, flasks, pressurized and non-pressurized containers, sachets, cans, drums, and the like.

[0004] In many instances, a primary consideration of handling factors is the ease of handling of the package by the ultimate consumer. This is influenced by the level of effort required when tipping a package to pour / dispense the liquid within the package, and the predictability of the liquid flow whilst tipping the package. In many domestic applications, it is also desirable to be able to lift and pour liquid from the package by a single-handed action. The ease for producers to fill the package is a further consideration.

[0005] Some products are shipped in a rehydratable powder form within a liquid tight packaging device, for the consumer to add water (or other liquid) prior to the ultimate use.

[0006] Transport and storage requirements of a particular liquid relate to the shelf life of the packaged liquid, mitigating interaction between the package materials and the liquid itself, resistance of the package to damage / rupture, and minimizing loss within secondary bulk packaging.

[0007] Environmental considerations include the choice of material in the package and the amount of material within the package itself, which influences the overall mass of product to be shipped. Less material in the package reduces shipping costs, and can also reduce the package unit cost. However, lightweight packaging can compromise ease of handling, particularly by the end user.

[0008] In recent decades, flexible liquid pouches (also known as “stand up pouches” or simply “pouches”) have become increasingly popular. These flexible liquid packages are often made of three panels of a flexible plastic sheet material: two major panels form the side walls of the pouch, and the third panel forms a bottom of the pouch and extends between the lower edges of the side walls. Seams are formed by bonding edges of the panels. In some examples, the flexible liquid pouch can be provided with a rigid spout with a closure to facilitate opening and closing of the package. Such examples are sometimes referred to as “spout pouches”. Appropriate selection of the plastic sheet material can provide benefits in respect of the transport, storage, and environmental factors.

[0009] It is known that flexible liquid pouches have handling difficulties that inhibit adoption. These problems are exacerbated with increasing volumetric capacity of the flexible liquid pouch.

[0010] There is a need to address the above, and / or at least provide a useful alternative.SUMMARY

[0011] There is provided a flexible liquid pouch comprising:

[0012] two or more panels of a flexible liquid impermeable sheet material, the panels being bonded to one another along a set of seams to define an enclosed void space within which to hold a liquid;

[0013] a spout that is bonded to the sheet material, and defines a throughway that is in communication with the void space and allows for the passage of liquid therethrough; and

[0014] a set of two or more mounting holes that are formed within the seams, the mounting holes being shaped to each receive a respective mounting formation of a holding device.

[0015] Preferably, the flexible liquid pouch has a bottom on which the flexible liquid pouch is to rest when in an upright condition;

[0016] the spout is disposed in a top section of the flexible liquid pouch; and

[0017] the set of two or more mounting holes are disposed relative to the spout, whereby as the flexible liquid pouch is rotated away from the upright condition by at least 45° and in a direction to dispense liquid through the spout, the vertical separation of the set of two or more mounting holes from the spout increases.

[0018] Preferably, each of the mounting holes has a predefined geometry. More preferably, each of the mounting holes in the set is arranged within the seam at predefined separations relative to one another.

[0019] In certain embodiments, the set of two or more mounting holes are arranged within the respective seam at predefined separations from the peripheral edges of flexible liquid pouch. Alternatively or additionally, the flexible liquid pouch forms a fin-like element that is formed by bonding panels of the pouch, and the set of mounting holes are arranged within the fin-like element. In some forms, the fin-like element is a continuation of one or more seams of the flexible liquid pouch.

[0020] Preferably, the mounting holes extend through the fin-like element in a direction that is generally transverse to the direction of the throughway, when the enclosed void space is evacuated.

[0021] The panels of the flexible liquid pouch can include two major panels that each have two panel side edges, wherein the seams of the flexible liquid pouch include side seams that are each defined by aligned panel side edges that are bonded to one another. Alternatively or additionally, the major panels of the flexible liquid pouch can also each include a panel upper edge, wherein the seams of the flexible liquid pouch include a top seam that is defined by aligned panel upper edges that are bonded to one another.

[0022] Preferably, the throughway of the spout extends in a direction that is oblique to the length direction of at least one of side seams, and / or the length direction of the top seam.

[0023] There is also provided a holding device for a flexible liquid pouch having flexible liquid impermeable sheet material that is assembled to define an enclosed void space within which to hold a liquid, and a spout with a throughway that is in communication with the void space, and that is secured to the sheet material, the holding device comprising:

[0024] a frame that includes a base section defining bottom surfaces of the holding device on which to rest the holding device, and an upper section that is spaced from the base section; and

[0025] a spout retention formation that is integral with or attached to the upper section of the frame, the spout retention formation being arranged to releasably receive the spout of the flexible liquid pouch, and to retain the spout in a predefined position relative to the frame whilst dispensing liquid from the pouch through the spout.

[0026] In at least some embodiments, the spout retention formation includes at least one catch that is resiliently deflectable so as to deflect during location of the spout within the spout retention formation, and then return towards a neutral position to releasably retain the spout in the predefined position. Preferably, the or each catch adopts its neutral position when the spout is interconnected with the spout retention formation. Preferably, the or each catch also deflects during removal of the spout from the spout retention formation.

[0027] Preferably, the spout retention formation has two catches.

[0028] In at least some embodiments, the spout includes a neck that defines at least part of the throughway, and a base with one or more portions projects laterally with respect to the neck, and the or each catch includes a lug that is located so as to overlap with the base of the spout when the spout is interconnected with the spout retention formation to thereby retain the spout in the predefined position.

[0029] In certain embodiments, the spout includes a neck that includes a non-cylindrical section, and the spout retention formation includes an abutment formation that has a shape that is complementary of the non-cylindrical section,

[0030] wherein, when the spout is interconnected with the spout retention formation, the non-cylindrical section is at least partly disposed within the abutment formation such that interference between the neck and the spout retention formation inhibits rotation of the spout relative to the holding device.

[0031] In an alternative embodiment, the spout includes a neck that includes a non-cylindrical section, and the spout retention formation includes an abutment formation that has a shape that is complementary of the non-cylindrical section,

[0032] and wherein, the spout is inserted into the abutment formation by rotation of the spout relative to the spout retention formation to interconnect, and, when the spout is interconnected with the spout retention formation, the non-cylindrical section is at least partly disposed within the abutment formation such that interference between the neck and the spout retention formation inhibits further rotation of the spout relative to the holding device.

[0033] In examples in which the spout retention formation is integral with the frame, the abutment formation can be in the form of a notch with a mouth that opens to one side of the frame.

[0034] In some embodiments, the holding device also comprises a handle by which a user can grasp the holding device to work the holding device, including whilst dispensing liquid from the pouch. In certain examples, the handle is integrally formed with the frame.

[0035] In certain examples, the frame includes a primary frame portion that defines the upper section and at least part of the base section, and includes structural sections that are configured to transfer load from the upper section applied to the frame via the flexible liquid pouch to the base section.

[0036] In some embodiments, the holding device further comprises a mounting formation that is integral with or attached to the frame, wherein a portion of the flexible liquid pouch is to be mounted to the mounting formation thereby retain that portion of the flexible liquid pouch relative to the frame.

[0037] Preferably, the mounting formation is integral with or attached to the upper section of the frame. More preferably, the mounting formation is spaced from the spout retention formation. Even more preferably, the mounting formation is positioned relative to the spout retention formation such that the vertical separation of the mounting formation from the spout retention formation increases, as the holding device and the flexible liquid pouch are rotated away from an upright condition by up to at least 45° and in a direction to dispense liquid through the spout.

[0038] Preferably, the mounting holes extend through the flexible liquid pouch in a direction that is generally transverse to the direction of the throughway, when the enclosed void space is evacuated, and wherein the mounting formation is configured to resist movement of the portion of the flexible liquid pouch that defines the set of two or more mounting holes towards the spout retention formation.

[0039] In at least some embodiments, the flexible liquid impermeable sheet material is assembled to form seams, and the set of mounting holes are arranged within one of the seams, and wherein the mounting formation includes a set of mounting studs, and wherein the mounting holes and mounting studs are complementary of one another to thereby facilitate retaining of the flexible liquid pouch to the frame.

[0040] Preferably, the mounting formation includes a web that extends inwardly from outer edge portions of the frame, and the mounting studs are supported by the web.

[0041] Each of the mounting studs has a body portion with a radially outwardly oriented surface.

[0042] In some examples, the body portion of each mounting stud has a radially outwardly oriented surface that defines a cylinder with a diameter that is equal to the diameter of the mounting holes.

[0043] In some alternative examples, the body portion of each mounting stud has a radially outwardly oriented surface that is defined by:

[0044] a major cylindrical segment having a radius that is substantially equal to the radius of the mounting holes, and

[0045] a minor cylindrical segment having a radius that is less than the radius of the mounting holes.

[0046] Preferably, the circumferential length of the major cylindrical segment is greater than the circumferential length of the minor cylindrical segment.

[0047] In some preferred examples, the ratio of the circumferential length of the major cylindrical segment to the circumferential length of the minor cylindrical segment is at least 2:1. More preferably, the ratio of the circumferential length of the major cylindrical segment to the circumferential length of the minor cylindrical segment is approximately 3:1.

[0048] Each of the mounting studs has a central aperture. Preferably, the central aperture of each mounting stud is shaped such that the wall thickness of the respective mounting stud is greater in the portion defined by the major cylindrical segment compared with the wall thickness in the portion defined by the minor cylindrical segment. More preferably, the central aperture of each mounting stud is substantially cylindrical.

[0049] The mounting formation can include a tongue that projects from at least one of the mounting studs, the tongue being shaped to inhibit the flexible liquid pouch sliding off the radially outwardly oriented surface of the respective mounting stud.

[0050] In some examples, the mounting formation includes one or more tongues that each project from a respective one of the mounting studs, the tongues being shaped to inhibit the flexible liquid pouch sliding off the radially outwardly oriented surface of the respective mounting stud.

[0051] Preferably, the or each tongue projects in a direction that is at least partially away from the spout retention formation.

[0052] Alternatively or additionally, the or each tongue is configured to overlap with the minor cylindrical segment of the respective mounting stud.

[0053] In at least some embodiments, the spout retention formation and the mounting formation are separated by the frame of the holding device so as to substantially correspond with the separation of the spout and the mounting holes in the flexible liquid pouch.

[0054] Preferably, at least part of the primary frame portion has a cross-sectional section shape that provides resistance to bending and / or torsion loads.

[0055] In some examples, the frame is shaped to have the flexible liquid pouch disposed inwardly of the primary frame portion when the spout is in the predefined position and the mounting holes are located on the mounting studs.

[0056] The internal width of the primary frame portion narrows in the direction away from the upper section.

[0057] In some examples, the primary frame portion defines at least part of the bottom surfaces of the holding device.

[0058] The frame can further comprise a first containment plate that is disposed in the base section of the frame and adjacent the primary frame portion, the first containment plate being shaped to inhibit movement of the flexible liquid pouch past the primary frame portion. Preferably, the first containment plate is disposed beneath the spout retention formation. Alternatively or additionally, the first containment plate is disposed at an opposite corner of the frame to the mounting formation.

[0059] The frame can further comprise a second containment plate that is disposed in the lower region of the frame and opposite the first containment plate, the second containment plate being shaped to inhibit movement of the flexible liquid pouch past the primary frame portion in a direction opposite to the first containment plate. Preferably, the second containment plate is disposed beneath the mounting formation. Alternatively or additionally, the second containment plate is disposed at an opposite corner of the frame to the spout retention formation.

[0060] In some examples, the first and / or second containment plates are removably connectable to the primary frame portion.

[0061] The holding device can include one or more secondary frame portions, and each secondary frame portion includes a respective one of the first and second containment plates. The primary frame portion can include first connectors, and each of the second frame portions include second connectors that mate with the first connectors to connect the secondary frame portions to the primary frame portions.

[0062] Preferably, the lower edges of the first and / or second containment plates define bottom surfaces of the holding device.

[0063] Preferably, the surface of the first and second containment plates that is to face towards the flexible liquid pouch includes non-planar side portions. More preferably, the surface of the first and second containment plates that is to face towards the flexible liquid pouch includes a substantially planar central portion.BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order that the invention may be more easily understood, embodiments will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0065] FIG. 1: is a perspective view of a flexible liquid pouch according to a first embodiment;

[0066] FIG. 2: is a schematic left side view of the flexible liquid pouch of FIG. 1, showing the pouch in its upright condition;

[0067] FIG. 3: is a schematic left side view of the flexible liquid pouch of FIG. 1, and showing the pouch in evacuated condition;

[0068] FIG. 4: is an enlarged view of Region A in FIG. 3;

[0069] FIG. 5: is a left side view of the flexible liquid pouch of FIG. 3, showing the pouch rotated by 45° from its upright condition;

[0070] FIG. 6: is a left side view of a flexible liquid pouch of FIG. 1, together with a holding device according to a second embodiment;

[0071] FIG. 7: is a right side view of the flexible liquid pouch and a holding device shown in FIG. 6;

[0072] FIG. 8: is a perspective view of the holding device shown in FIG. 5;

[0073] FIG. 9: is a right side view of the holding device shown in FIG. 8;

[0074] FIGS. 10 to 12: are enlarged views of Region Cin FIG. 9;

[0075] FIG. 13: is an enlarged view of Region Din FIG. 9;

[0076] FIG. 14: is a cross section view of FIG. 14, as viewed in the direction XII-XII;

[0077] FIG. 15: is an enlarged view of Region Bin FIG. 6;

[0078] FIG. 16: is a disassembled view of the holding device shown in FIG. 8;

[0079] FIG. 17: is a left side view of the primary frame portion of the holding device shown in FIG. 8; and

[0080] FIG. 18: is a front view of one of the secondary frame portions of the holding device shown in FIG. 8.DETAILED DESCRIPTIONFIGS. 1 to 5 show a flexible liquid pouch 10 according to a first embodiment. The pouch 10 includes a spout 12, and flexible liquid impermeable sheet material. The sheet material is assembled to define an enclosed void space within which to hold a liquid. In FIGS. 2, 3, and 5, the void space is indicated by arrows V.

[0082] In the illustrated example, the pouch 10 has three panels of the sheet material: two major panels 14, 16, and a bottom panel 18. The pouch 10 has two bottom edges 20, a first side edge 22, a second side edge 24, and an upper edge 26. The spout 12 is disposed within the top section of the pouch 10, and adjacent the first side edge 22 and the upper edge 26.

[0083] The pouch 10 is assembled such that the bottom panel 18 is positioned between the two major panels 14, 16. Further, the bottom panel 18 is folded along a fold line that is parallel to the bottom edges 20 of the two major panels 14, 16. The location of the fold line in the bottom panel 18 is indicated in FIGS. 2 and 3 by broken line F.

[0084] Further, panels 14, 16, 18 are bonded to one another along a set of seams (described in further detail below). The panels 14, 16, 18 together with the bonding at the seams create the void space V. The materials used for the pouch 10 are able to fuse under heat and pressure. Accordingly, the seams are formed by applying heat and pressure to the overlapped sheets.

[0085] In this example, the set of seams in the pouch 10 include:

[0086] a pair of bottom seams 28 (one of which is indicated in FIG. 3), each of which bonds part of the bottom panel 18 to a respective one of the major panels 14, 16, in regions adjacent the bottom edge;

[0087] a first upper side seam 30, which bonds lateral edge portions of the two major panels 14, 16 to one another, and which extends upwardly from the fold line F and at a first long side of the pouch 10;

[0088] a first lower side seam 32, which bonds lateral edge portions of the bottom panel 18 together with the lateral edge portions of the two major panels 14, 16, and which extends downwardly from the fold line F towards the bottom edge 20 at the first long side of the pouch 10;

[0089] a second upper side seam 34, which bonds edge portions of the two major panels 14, 16 to one another, and which extends upwardly from the fold line F and at a second long side of the pouch 10;

[0090] a second lower side seam 36, which bonds lateral edge portions of the bottom panel 18 together with the lateral edge portions of the two major panels 14, 16, and which extends downwardly from the fold line F towards the bottom edge 20 at the second long side of the pouch 10; and

[0091] a top seam 38, which bonds upper edge portions of the two major panels 14, 16 to one another along an upper edge 26 of the pouch 10.

[0092] The pair of bottom seams 28 and the lower side edge seams 32, 36 create a pair of gussets (indicated by arrows G, in FIGS. 2 and 3) adjacent the bottom edges 20 of the pouch 10. Each gusset is located between the bottom seams 28 and the respective first and second lower side seams 32, 36.

[0093] Due to the flexible nature of the sheet material, and the locations of the seams, the volume of the enclosed void space Vis changeable from a minimum to a maximum. When the void space is evacuated, the major panels 14, 16 are drawn up against one another and the bottom panel 18 is folded along the fold line F, such that the enclosed void space has a negligible (near zero) volume.

[0094] As the pouch 10 is filled with fluid, the volume of the void space V increases. To this end, the major panels 14, 16 distend outwardly away from one another, and the bottom panel 18 partially unfolds, and the centre of the bottom panel 18 distends towards the bottom edges 20 of the pouch 10. In this condition, the bottom edges 20 of the pouch 10 adopt a generally oblong shape. It is in this condition, that the pouch 10 can be placed on the bottom edges 20. The pouch 10 adopts an upright condition when supported by the bottom edges 20.

[0095] The shapes of the bottom seams 28 are such that the bottom edges 20 form a general oblong shape when the bottom panel 18 is unfolded to its maximum extent.

[0096] In some examples, the pouch 10 is able to be self-supporting when the void space V is at its maximum volume, so as to stand in the upright condition on its bottom edges 20. The spout 12 defines a throughway that is in communication with the void space and allows for the passage of liquid therethrough. To this end, liquid within the pouch 10 is to be dispensed via the throughway in the spout 12, as indicated by arrow L in FIG. 4. If desired, the pouch 10 can also be filled with product (such as liquid, or a dry powder) via the throughway in the spout 12.

[0097] In the illustrated example, the spout 12 has a base 40 that is shaped to facilitate bonding of the spout 12 to the major panels 14, 16 by heat sealing. A neck 42 projects outwardly from base 40, with the throughway extending through both the base 40 and the neck 42. As shown in FIG. 4, the spout 12 has upper and lower flanges 44, 46 that extend radially from the neck 42. The lower flange 46 is adjacent the base 40. The upper flange 44 is spaced from the lower flange 46 by a gripping formation 48. The radially outer surface of the gripping formation 48 has a non-cylindrical section; in other words, the cross section of the gripping formation 48 is non-circular in planes that are transverse to the throughway.

[0098] The gripping formation 48 is structure that is suitable for holding of the spout 12, and hence the pouch 10, by some filling machines, in certain packaging and processing operations.

[0099] The gripping formation 48 of the illustrated spout 12 has a pair of planar faces 50, 52 that respectively face outwardly towards the first upper side seam 30 and the top seam 38. In addition, the gripping formation 48 includes ribs 54 (one of which is shown in FIG. 4) that are disposed between the planar faces 50, 52 and are oriented outwardly with respect to the major panels 14, 16 of the pouch 10. Each rib 54 is also parallel with the throughway.

[0100] The neck 42 has an external thread 56, and an internally threaded closure 58 is provided to close and seal the spout 12.

[0101] The major panels 14, 16 of the pouch 10 are shaped to have an oblique edge 60 that extends obliquely to both the upper edge 26 and also the first upper side seam 30. The spout 12 is bonded to the major panels 14, 16 adjacent the oblique edge 60. As will be apparent from the Figures, the neck 42 of the pouch 10 is inclined relative to both the upper edge 26 and the first upper side seam 30.

[0102] The pouch 10 includes two mounting holes 62, 64 that are formed within selected ones of the set of seams. In this particular example, the width of the top seam 38 and the second upper side seam 34, within the region that is adjacent the intersection of the second side edge 24 and the upper edge 26 increases to create a fin-like element 66. The two mounting holes 62, 64 are formed within the fin-like element 66.

[0103] As will be observed from the drawings, the fin-like element 66 is a continuation of the top seam38 and the second upper side seam 34, whereby the bonded portions of the major panels 14, 16 extends further inwardly of the upper edge 26 and second side edge 24, when compared with the top seam 38 and second upper side seam 34.

[0104] The two mounting holes 62, 64 are of a predefined geometry. Further, the two mounting holes 62, 64 are arranged at predefined separations from the second side edge 24 and upper edge 26 of the pouch 10, and at predefined separations relative to one another. These geometric characteristics of the pouch 10 and the two mounting holes 62, 64 facilitate the use of the two mounting holes 62, 64 with a holding device, as discussed in further detail below in reference to FIGS. 6 to 9, 12, and 13.

[0105] The two mounting holes 62, 64 are disposed relative to the spout 12, such that as the pouch 10 is rotated away from the upright condition by at least 45° and in a direction to dispense liquid through the spout 12, the vertical separation of the mounting holes 62, 64 from the spout 12 increases. As is apparent from FIG. 3, which shows the spout 12 in its upright condition, the spout 12 and the two mounting holes 62 are approximately level. In contrast, rotation of the spout 12 from the upright condition to dispense liquid causes the two mounting holes 62 to be elevated relative to the spout 12, as indicated in FIG. 5 by arrow h.

[0106] FIGS. 6 and 7 show a holding device 100 according to another embodiment, together with the pouch 10 mounted to the holding device 100. The holding device 100 is shown in isolation in FIGS. 8 to 14.

[0107] The holding device 100 has a frame, which in this particular example is in the form of a primary frame portion 102, and a pair of secondary frame portions 104a, 104b. The frame has a base section defining bottom surfaces 106 of the holding device 100, and an upper section that is spaced from the base section. The holding device 100 can rest on the bottom surfaces 106 in an upright condition, as shown in FIGS. 6 and 7.

[0108] The holding device 100 has a spout retention formation 108 (see FIG. 7) that is arranged to releasably receive the spout 12 of the pouch 10, and a mounting formation 110 that is able to retain the part of the pouch 10 that defines the two mounting holes 62, 64 relative to the frame. The spout retention formation 108 and mounting formation 110 are located within the upper section of the frame. The pouch 10 is mountable to the frame of the holding device 100 by interconnections with the spout retention formation 108 and mounting formation 110.

[0109] The spout retention formation 108 is able to retain the spout 12 in a predefined position relative to the frame whilst dispensing liquid from the pouch 10 through the spout 12. In this way, a user of the pouch 10 with holding device 100 may have confidence that the pouch 10 is securely held and located while they dispense liquid. The holding device 100 also has a handle 112 that a user can grasp to work the holding device 100, including whilst dispensing liquid from the pouch. In this illustrated example, the handle 112 is integrally formed with the primary frame portion 102.

[0110] In this example, both the spout retention formation 108 and mounting formation 110 are integral with the frame.

[0111] The spout retention formation 108 is shown in detail in FIGS. 10 to 12. The spout retention formation 108 includes two catches 114 that are resiliently deflectable so as to deflect during location of the spout 12 within the spout retention formation 108. Once the spout 12 is located in a predefined position within the spout retention formation 108, the two catches 114 return towards a neutral position to thereby releasably retain the spout 12 at that predefined position. The particular forms of the spout retention formation 108 and the spout 12 in this example are such that each catch 114 adopts its neutral position when the spout 12 is interconnected with the spout retention formation 108.

[0112] Each catch 114 includes a lug 116 that is located so as to overlap with the pouch 10 when the spout 12 is interconnected with the spout retention formation 108. The overlap acting to retain the spout 12 in the predefined position. The lugs 116 project inwardly with respect to the primary frame portion 102 of the frame.

[0113] FIG. 15 illustrates schematically the overlap of the lugs 116 with the pouch 10. In this particular example, the lugs 116 overlap with the base 40 of the spout 12.

[0114] As will be appreciated, the catches 114 also deflect during removal of the spout 12 from the spout retention formation 108.

[0115] An aperture 118 is formed between each catch 114 and an inwardly adjacent part of the primary frame portion 102. The apertures 118 are readily apparent in FIG. 7. Each catch 114 is interconnected with other parts of the frame at its two opposing ends. In this way, each catch 114 behaves in a manner similar to a leaf spring. As shown particularly in FIG. 10, each lug 116 is generally centred in the lengthwise direction of the respective catch 114.

[0116] The spout retention formation 108 also includes an abutment formation 120 that has a shape that is complementary of the non-cylindrical section of the neck 42 of the spout 12. When the spout 12 is interconnected with the spout retention formation 108, the non-cylindrical section is at least partly disposed within the abutment formation 120. Accordingly, interference between the neck 42 and the spout retention formation 108 inhibits rotation of the spout 12 relative to the holding device 100. As will be appreciated, the spout 12 being received in the abutment formation 120 is beneficial to appropriate positioning of the spout 12 with respect to the holding device 100. Further, the interference holds the spout 12 in position whilst a user is removing or attaching the closure 58.

[0117] In this particular example, the abutment formation 120 has a shape that at least partially complements the gripping formation 48. Further, the abutment formation 120 is in the form of a notch with a mouth that opens to one side of the frame. The notch is shaped with a pair of opposing major surfaces 122 against which the planar faces 50, 52 of the gripping formation 48 are to locate. The notch is also shaped with a secondary recess 124 that is to receive the rib 54 on one side of the spout 12. The above described interference is achieved by way of the planar faces 50, 52 abutting against the opposing major surfaces 122 of the notch. Similarly, by way of the rib 54 against the surfaces defining the secondary recess 124.

[0118] The mounting formation 110 is shown in detail in FIGS. 13 and 14. In this example, the mounting formation 110 includes a web 126 that extends inwardly from outer edge portions of the frame, and two mounting studs 128, 130 that are supported by the web 126. The mounting studs 128, 130 are shaped to complement the two mounting holes 62, 64. In this way, the two mounting studs 128, 130 facilitate retaining the pouch 10 to the frame of the holding device 100.

[0119] Each of the mounting studs 128, 130 has a body portion with a radially outwardly oriented surface. The body portion of each mounting stud 128, 130 has a radially outwardly oriented surface that is defined by a major cylindrical segment 132a, 132b, and a minor cylindrical segment 134a, 134b. Each major cylindrical segment 132a, 132b has a radius that is substantially equal to the radius of the mounting holes 62, 64. Each minor cylindrical segment 134a, 134b has a radius that is less than the radius of the mounting holes 62, 64. In this example, each mounting stud 128, 130 is configured such that the circumferential length of the major cylindrical segment 132a, 132b is greater than the circumferential length of the minor cylindrical segment 134a, 134b.

[0120] The separation of the mounting studs 128, 130 is substantially the same as the separation of the two mounting holes 62, 64 of the pouch 10. In this way, the pouch 10 and holding device 100 are mutually configured for cooperative use together.

[0121] The mounting formation 110 includes tongues 136a, 136b that each project from a respective one of the mounting studs 128, 130. The tongues 136a, 136b are shaped to inhibit the pouch 10 sliding off the radially outwardly oriented surface of the respective mounting stud 128, 130.

[0122] As will be apparent, the tongues 136a, 136b overlaps with the minor cylindrical segment 134a, 134b of the respective mounting stud 128, 130. Further, each tongue 136a, 136b projects in a direction that is at least partially away from the spout retention formation 108.

[0123] The pouch 10 is attached to the mounting formation 110 by a procedure involving:

[0124] a. passing the two tongues 136a, 136b through a respective two mounting holes 62, 64;

[0125] b. locating the fin-like element 66 of the pouch 10 against the minor cylindrical segments 134a, 134b;

[0126] c. and, with the pouch 10 and holding device 100 in the arrangement described in (b) above, manipulating the fin-like element 66 such that the body portions of the mounting studs 128, 130 wholly extending through the two mounting holes 62, 64.

[0127] Detachment of the pouch 10 from the mounting formation 110 involves reversing this procedure.

[0128] The diameter of each mounting stud 128 in planes that are parallel with the web 126 and that extend through the respective tongue 136a, 136b is greater than the diameter of the two mounting holes 62, 64. Accordingly, once the pouch 10 is mounted on the mounting formation 110 with the body portions of the mounting studs 128, 130 wholly extending through the two mounting holes 62, 64, the mounting formation 110 inhibits unintended detachment of the pouch 10 from the holding device 100.

[0129] It is intended that the pouch 10 is to be mounted on the holding device 100 by first attaching the portion of the pouch 10 with the two mounting holes 62, 64 to the mounting formation 110, and then locating the spout 12 within the spout retention formation 108. Removal of the pouch 10 from the holding device 100 involves reversing this procedure.

[0130] It will be apparent from an inspection of FIGS. 6 and 7 that in this illustrated example, the spout retention formation 108 and the mounting formation 110 are separated by the frame of the holding device 100 so as to substantially correspond with the separation of the spout 12 and the mounting holes 62, 64 in the pouch 10. Accordingly, when the pouch 10 is mounted on the holding device 100, substantially all of the slack is taken out of the sheet material of the pouch 10 that is between the spout 12 and the two mounting holes 62, 64. In this way, the pouch 10 is well retained on the holding device 100.

[0131] The primary frame portion 102 has a cross-sectional section shape that provides resistance to bending and / or torsion loads. In this way, load applied to the upper section of the frame, for instance via the flexible liquid pouch, are transferred to the base section of the frame. Further, the primary frame portion 102 is sufficiently rigid to be supported from the handle in various conditions, including the upright condition, and whilst dispensing liquid from the pouch 10.

[0132] The frame of the holding device 100 is shaped to have the pouch 10 disposed inwardly of the primary frame portion 102, when the spout 12 is in the predefined position on the spout retention formation 108, and the mounting holes 62, 64 are located on the mounting studs 128, 130.

[0133] In the illustrated example, the primary frame portion 102 encircles the pouch 10 in a direction that generally follows the seams. In addition, the internal width of the primary frame portion 102 narrows in the direction away from the upper section.

[0134] A first of the secondary frame portions 104a is disposed beneath the spout retention formation 108, and at a diagonally opposite corner of the primary frame portion 102 to the mounting formation 110. The second of the secondary frame portions 104b is disposed beneath the mounting formation 110, and at a diagonally opposite corner of the frame to the spout retention formation 108. As shown particularly in FIG. 17, in this example the primary frame portion 102 defines a part of the bottom surfaces 106 of the holding device 100. The two secondary frame portions 104a, 104b also define parts of the bottom surfaces 106 of the holding device 100. As such, the secondary frame portions 104a, 104b are to form part of the base section of the frame, as shown most clearly in FIGS. 8 and 9.

[0135] Turning back to FIGS. 16 through 18, in this particular embodiment, the pair of secondary frame portions 104a, 104b are identical and interchangeable. The primary frame portion 102 has first connectors 138, and each of the secondary frame portions 104a, 104b has a second connector 140. Accordingly, the secondary frame portions 104a, 104b are removably connectable to the primary frame portion 102 by interconnection of the first and second connectors 138, 140.

[0136] Each secondary frame portion 104 includes a containment plate 142 that defines a broad surface 144 against which the lower parts of the two major panels 14, 16 are to rest, when the pouch 10 is mounted on the holding device 100. The second connector 140 of each secondary frame portion 104 is on the opposing side of the two containment plates 142 to the broad surface 144. Between the two containment plates 142, a part of the primary frame portion 102 provides vertical support to the bottom of the pouch 10. Accordingly, the two containment plates 142 inhibit movement of the pouch 10 outwardly from within the primary frame portion 102.

[0137] The first and second connectors 138, 140 are mutually configured to resist disconnection, once interconnected. However, in some alternatives, the frame may be formed as a unitary item. In some other alternatives, the secondary frame portions 104a, 104b are to be substantially permanently connected to the primary frame portion 102 once the interconnection is made.

[0138] Each secondary frame portion 104 has a pair of semi-circular recesses 146 at each end of the second connector 140. The semi-circular recesses 146 receive complementary shaped semi-circular portions of the primary frame portion 102. In this way, relative movement of the interconnected primary frame portion 102 and secondary frame portions 104a, 104b is prevented, which contributes to strength and stability in the frame, and hence the holding device 100.

[0139] Throughout this specification and the claims which follow, unless the context requires otherwise, the word “comprise”, and variations such as “comprises” and “comprising”, will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.

[0140] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.

Examples

Embodiment Construction

FIGS. 1 to 5 show a flexible liquid pouch 10 according to a first embodiment. The pouch 10 includes a spout 12, and flexible liquid impermeable sheet material. The sheet material is assembled to define an enclosed void space within which to hold a liquid. In FIGS. 2, 3, and 5, the void space is indicated by arrows V.

[0082]In the illustrated example, the pouch 10 has three panels of the sheet material: two major panels 14, 16, and a bottom panel 18. The pouch 10 has two bottom edges 20, a first side edge 22, a second side edge 24, and an upper edge 26. The spout 12 is disposed within the top section of the pouch 10, and adjacent the first side edge 22 and the upper edge 26.

[0083]The pouch 10 is assembled such that the bottom panel 18 is positioned between the two major panels 14, 16. Further, the bottom panel 18 is folded along a fold line that is parallel to the bottom edges 20 of the two major panels 14, 16. The location of the fold line in the bottom panel 18 is indicated in FIGS....

Claims

1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. A holding device for a flexible liquid pouch having flexible liquid impermeable sheet material that is assembled to define an enclosed void space within which to hold a liquid, and a spout with a throughway that is in communication with the void space, and that is secured to the sheet material, the holding device comprising:a frame that includes a base section defining bottom surfaces of the holding device on which to rest the holding device, and an upper section that is spaced from the base section; anda spout retention formation that is integral with or attached to the upper section of the frame, the spout retention formation being arranged to releasably receive the spout of the flexible liquid pouch, and to retain the spout in a predefined position relative to the frame whilst dispensing liquid from the pouch through the spout.

8. A holding device according to claim 7, wherein the spout retention formation includes at least one catch that is resiliently deflectable so as to deflect during location of the spout within the spout retention formation, and then return towards a neutral position to releasably retain the spout in the predefined position.

9. A holding device according to claim 8, wherein the or each catch adopts its neutral position when the spout is interconnected with the spout retention formation.

10. A holding device according to claim 8, wherein the spout includes a neck that defines at least part of the throughway, and a base with one or more portions that project laterally with respect to the neck, and the or each catch includes a lug that is located so as to overlap with the base of the spout when the spout is interconnected with the spout retention formation to thereby retain the spout in the predefined position.

11. A holding device according to claim 7, wherein the spout includes a neck that includes a non-cylindrical section, and the spout retention formation includes an abutment formation that has a shape that is complementary of the non-cylindrical section,and wherein, when the spout is interconnected with the spout retention formation, the non-cylindrical section is at least partly disposed within the abutment formation such that interference between the neck and the spout retention formation inhibits rotation of the spout relative to the holding device.

12. A holding device according to claim 7, wherein the spout includes a neck that includes a non-cylindrical section, and the spout retention formation includes an abutment formation that has a shape that is complementary of the non-cylindrical section,and wherein, the spout is inserted into the abutment formation by rotation of the spout relative to the spout retention formation to interconnect, and, when the spout is interconnected with the spout retention formation, the non-cylindrical section is at least partly disposed within the abutment formation such that interference between the neck and the spout retention formation inhibits further rotation of the spout relative to the holding device.

13. A holding device according to claim 11 or 12, wherein the abutment formation is in the form of a notch formed in the frame, the notch having a mouth that opens to one side of the frame.

14. A holding device according to claim 7, further comprising a handle by which a user is to grasp the holding device to work the holding device, including whilst dispensing liquid from the pouch, the handle being integrally formed with the frame.

15. A holding device according to claim 7, wherein the frame includes a primary frame portion that defines the upper section and at least part of the base section, and includes structural sections that are configured to transfer load from the upper section applied to the frame via the flexible liquid pouch to the base section.

16. A holding device according to claim 7, further comprising a mounting formation that is integral with or attached to the frame, wherein a portion of the flexible liquid pouch is to be mounted to the mounting formation to thereby retain that portion of the flexible liquid pouch relative to the frame.

17. A holding device according to claim 16, wherein the mounting formation is positioned relative to the spout retention formation such that vertical separation of the mounting formation from the spout retention formation increases, as the holding device and the flexible liquid pouch are rotated away from an upright condition by up to at least 45° and in a direction to dispense liquid through the spout.

18. (canceled)19. (canceled)20. (canceled)21. (canceled) e22. (canceled)23. (canceled)24. A holding device according to claim 17, wherein the spout retention formation and the mounting formation are separated by the frame of the holding device so as to substantially correspond with the separation of the spout and the mounting holes in the flexible liquid pouch.

25. A holding device according to claim 15, wherein the frame further comprises a first containment plate that is disposed in the base section of the frame and adjacent the primary frame portion, the first containment plate being shaped to inhibit movement of the flexible liquid pouch past the primary frame portion.

26. A holding device according to claim 25, wherein the frame further comprises a second containment plate that is disposed in a lower region of the frame and opposite the first containment plate, the second containment plate being shaped to inhibit movement of the flexible liquid pouch past the primary frame portion in a direction opposite to the first containment plate.

27. A holding device according to claim 26, wherein the first and / or second containment plates are removably connectable to the primary frame portion.

28. A holding device according to claim 26, wherein the frame includes one or more secondary frame portions, and each secondary frame portion includes a respective one of the first and second containment plates.

29. A holding device according to claim 28, wherein the primary frame portion includes first connectors, and each of the second frame portions includes second connectors that mate with the first connectors to connect the secondary frame portions to the primary frame portions.

30. A holding device according to claim 26, wherein lower edges of the first and / or second containment plates define bottom surfaces of the holding device.

Images