EP2555984B1 - Blütenförmigem boden fur selbststehender behälter und behälter dafür - Google Patents

Blütenförmigem boden fur selbststehender behälter und behälter dafür Download PDF

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Publication number
EP2555984B1
EP2555984B1 EP11717204.9A EP11717204A EP2555984B1 EP 2555984 B1 EP2555984 B1 EP 2555984B1 EP 11717204 A EP11717204 A EP 11717204A EP 2555984 B1 EP2555984 B1 EP 2555984B1
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EP
European Patent Office
Prior art keywords
base
container
foot
formations
central
Prior art date
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Not-in-force
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EP11717204.9A
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English (en)
French (fr)
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EP2555984A2 (de
Inventor
Mikael Quasters
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Petainer Lidkoeping AB
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Petainer Lidkoeping AB
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Publication of EP2555984A2 publication Critical patent/EP2555984A2/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical

Definitions

  • This invention relates to self-standing containers, more specifically to a petaloid base , according to the preamble of claim 1, for such a container.
  • Such containers may be blow-moulded of plastics material such as polyethylene terephthalate (PET).
  • the generic term 'PET' includes compositions that predominantly contain polyethylene terephthalate - but may also including other materials.
  • a suitable composition may comprise approximately 95% polyethylene terephthalate and 5% nylon.
  • these materials may be mixed, or provided in different layers, for example via multilayer injection moulding and overmoulding.
  • Blow-moulded PET containers have long been used as bottles for beverages. More recently, they have been proposed for use as kegs for transporting, storing and dispensing beverages such as beer. An example of such a keg is disclosed in WO 2007/064277 .
  • the term 'petaloid' refers to a multi-footed base shape whose feet are disposed in an angularly-spaced arrangement around the base, the resulting shape resembling the petals of a flower when viewed from under the container in use.
  • the container usually has a cylindrical side wall of circular horizontal cross-section, in which case the feet typically lie on a contact circle that is concentric with, and whose diameter is smaller than, the circular cross-section of the side wall. The feet act together to provide a stable multi-point support for the container.
  • the container may be used for storing, transporting and dispensing effervescent beverages such as beer.
  • the beverage itself may be carbonated, or a propellant gas may be injected into the container at superatmospheric pressure to force the beverage out of the container.
  • a propellant gas may be injected into the container at superatmospheric pressure to force the beverage out of the container.
  • Such a container needs to withstand these internal pressures under a range of environmental conditions. As well as withstanding internal pressures, the container needs to survive rough handling during transportation of the container.
  • WO 2006/000408 A1 describes a container with an ovoid or cylindrical wall and a hemispherical bottom type continuing that wall from which originate feet spaced from one another.
  • the ratio of the weight of the wall to the weight of the bottom is at least 4.
  • the invention resides in a petaloid base of a blow-moulded self-standing container, the base having a spheroidal underlying base contour and a plurality of spheroidal foot formations that interrupt and project from the underlying base contour to define a corresponding plurality of feet, wherein the foot formations radiate from a central protrusion and the foot formations are ovoid.
  • the elongate foot formations have respective longitudinal axes, which axes lie in planes extending radially from a central axis of the base. Those axes of the foot formations suitably extend outwardly and upwardly in conical relation from the central axis of the base.
  • the feet are spheroidal, it will be understood that their contact with a planar surface on which the base can rest is via a convex surface. Preferably therefore, contact between a given foot and that planar surface is via a point on the curved surface of that foot.
  • the underlying base contour is preferably substantially hemispherical.
  • the contour may, for example, be that of an oblate spheroid whose polar axis coincides with a central axis of the base.
  • the foot formations are ovoid (partially egg-shaped), in which case the contact points of the feet are most conveniently defined by the widest part of the cross-section of each foot formation being offset inwardly toward an inner end of the foot formation.
  • the foot formations taper to a greater extent at their radially outer portions than their radially inner portions with respect to the central axis of the base.
  • the base comprises formations, such as foot formations, whose shapes are substantially rotationally symmetrical about an axis.
  • shapes such as spheroids, ellipsoids and ovoids that define the foot formations are preferably substantially rotationally symmetrical about an axis.
  • the material used to form these structures can be minimised.
  • the internal capacity of the base, as well as its strength can be maximised.
  • Each foot formation may have an elliptical, preferably ovate intersection with the underlying base contour. To reduce stress concentration, the intersection is preferably of concave cross section.
  • the foot formations radiate from a central protrusion. That protrusion may be approximately polygonal, with a number of sides corresponding to the number of foot formations.
  • the foot formations are suitably separated by valleys, that may for example radiate from apices of the polygonal protrusion.
  • each foot formation may have an enlarged central region from which the foot formation tapers inwardly across an inner portion to an inner end.
  • the inner portions of the foot formations suitably lie in segmented relation around the base.
  • each foot formation tapers from the enlarged central region outwardly across an outer portion to an outer end of the foot formation.
  • the inventive concept extends to a blow-moulded container such as a keg or a bottle having the base of the invention.
  • the container is constructed by blow-moulding a preform, ideally made of PET.
  • the container has an average pressure resistance to material usage ratio of greater than 3 MPa / kg. More preferably, the average pressure resistance to material usage ratio is greater than 3.75 MPa / kg. Also, preferably, the container has a capacity to material usage ratio of over 40 litres / kg. More preferably, the container has a capacity to material usage ratio of over 80 litres / kg.
  • a container 10 in this example of the invention comprises a hollow body of blow-moulded PET.
  • the body of the container 10 is of circular horizontal section, the radius of that circle extending orthogonally from a central longitudinal axis 12 that extends centrally through the closed base 14 of the container 10.
  • Above the base 14, but not shown in Figures 1 and 2 is a substantially cylindrical side wall surmounted by a neck portion.
  • the side wall is integral with and terminates at its lower end in the base 14; in turn, the side wall is integral with and terminates at its upper end in the neck portion at the top of the container 10.
  • the fundamental or underlying shape of the base 14 is a slightly flattened hemisphere, that hemisphere being rotationally symmetrical about the central longitudinal axis 12 of the container 10. More generally, the underlying shape of the base 14 is an oblate spheroid, being a rotationally symmetric ellipsoid having a diameter on its polar axis (coinciding with the central longitudinal axis 12) that is shorter than the diameter of the equatorial circle whose plane bisects it. This approximately hemispherical shape maximises resistance to internal pressure, reduces stress concentrations to resist cracking, and also maximises internal volume while minimising material usage.
  • the base 14 further includes integrally-moulded blister-like feet disposed in a petaloid arrangement around the base, the feet being defined in this example by five hollow ovoid foot formations 16 that radiate equi-angularly from a relatively shallow generally pentagonal convex protrusion 18 on the central longitudinal axis 12. More generally, the foot formations 16 are elongate ellipsoids in the form of prolate spheroids, a prolate spheroid being a spheroid whose diameter along its polar axis is greater than its equatorial diameter.
  • the polar axes 20 of the spheroidal foot formations 16 extend outwardly and upwardly in equi-angularly spaced radially-disposed planes from the central longitudinal axis 12 of the container 10.
  • the polar axes 20 of the foot formations 16 lie on a virtual frusto-conical surface surrounding the central longitudinal axis 12.
  • Circumferentially adjacent pairs of foot formations 16 are separated by valleys 22 that radiate equi-angularly from the apices 24 of the pentagonal central protrusion 18.
  • the valley floors follow the spheroidal shape of the base 14 and open at their outer ends to an outer portion of the base 14 that lies radially outwardly beyond the foot formations 16.
  • each foot formation 16 and the central protrusion 18 are joined via a transition portion that curves smoothly without distinct transitions or discontinuities.
  • a foot formation 16, the smoothly curving transition portion and the central protrusion 18 together define a sinuous cross section.
  • the convex central protrusion 18 has a radius of curvature r that is smaller than the general radius of curvature R of the spheroidal base 14: thus R > r . Moreover, the convex central protrusion 18 extends to a level beyond - and thus, in use, below - the lowermost apex of the underlying base contour. Also, the convex central protrusion 18 extends to a level within - and thus, in use, above - the extent of the foot formations 16.
  • the foot formations 16 bulge outwardly from the underlying spheroidal contour of the base 14 by virtue of an ovoid convex wall.
  • the convex wall of each foot formation 16 is surrounded by a concave transition zone 26 in the shape of an ovate ring.
  • the transition zone 26 extends smoothly into the spheroidal wall of the base with a large radius of curvature to reduce stress concentration and hence to minimise stress cracking.
  • the transition zones 26 of circumferentially adjacent foot formations 16 partially define the valley 22 between those foot formations 16.
  • Each foot formation 16 is generally elliptical (in this example, ovate) in underneath plan view, reaching a maximum width in an enlarged central region 28 between its inner end 30 and its outer end 32.
  • each foot formation 16 tapers in opposite directions from the widest part of the central region 28: along an inner portion 34 moving inwardly toward the central longitudinal axis 12 to the inner end 30; and along an outer portion 36 moving outwardly away from the central longitudinal axis 12 to the outer end 32.
  • the inwardly-tapering inner portions 34 of the foot formations 16 fit closely between their neighbours around the circular base 14 like segments of an orange. These inner portions 34 of the foot formations 16 alternate with, and are separated by, narrow inner sections 38 of the valleys 22, which may be approximately parallel but, in this example, widen slightly as they extend outwardly from the pentagonal central protrusion 18. However where they extend outwardly into their outer sections 40 beyond the widest part of the foot formations 16, the valleys 22 widen near-exponentially between the tapering outer portions 36 of the foot formations 16 until they reach a maximum width between the outer ends 32 of adjacent foot formations 16.
  • each foot formation 16 extends to a level beyond - and thus, in use, below - the lowermost apex of the base 14 defined by the central pentagonal protrusion 18.
  • the foot formations 16 all extend to the same level.
  • each foot formation 16 defines a contact point 42 that will lie stably upon a flat support surface (not shown) orthogonal to the central longitudinal axis 12 of the container 10.
  • FIG. 1 shows that the foot formations are somewhat egg-shaped with the widest part of their cross-sections offset slightly inwardly and downwardly toward their inner ends 30.
  • the contact points 42 of the foot formations 16 are equi-spaced on and around a contact circle centred on the central longitudinal axis 12 of the container 10.
  • k is preferably between 3.6 and 5.5, more preferably between 4.0 and 5.3, still more preferably between 4.2 and 5.0 and typically 4.7. This may be contrasted with typical PET bottles on the market whose corresponding ratio k is typically 2.5 to 3.5.
  • the relatively large value for k in the invention stems from a relatively small value for x. This is advantageous because a small contact circle creates a small - and hence inherently stiff - diaphragm between the contact points 42.
  • the result is a central area within the contact circle between the contact points 42 of the foot formations 16 that is quite rigid and hence resistant to movement during internal pressure, up to burst pressure.
  • the rigidity of the area within the contact circle is enhanced by the undulating wall section defined by the inner portions 34 of the foot formations 16, the valleys 22 between them, and the central protrusion 18.
  • Stiffness within the contact circle is important not just for a high burst pressure but also for stability. This is because the lowest point on the central longitudinal axis (the lowermost apex of the base 14 defined by the central pentagonal protrusion 18) will tend to be pushed down under internal pressure. If that lowest point moves so far as to contact a supporting surface in use, the container cannot rest stably on the contact points 42 of the foot formations 16.
  • the stiffness of the base shape of the invention means that compared to previously known designs, the distance from the central apex of the base to a supporting surface is relatively small, to the benefit of stability and capacity relative to the height of the container.
  • any one foot formation 16 end-on i.e. from the side of the container 10 looking inwardly towards the central longitudinal axis 12
  • the contour of that foot formation 16 describes a substantially constant convex radius between the concave radii of the transition zones 26 to each side.
  • a conventional petaloid base typically has flatter surfaces defining a V-shaped valley between the feet, to the detriment of material usage and stress concentration. Stress concentrations create areas of a container that are particularly vulnerable to rupture under high internal pressure.
  • the arrangement of the base 14 of the present invention is particularly suited to containers for dispensing liquids under pressure.
  • the increased value for k makes the base stiffer and hence better suited for retaining stability whilst the container is subject to high internal pressure.
  • the convex central protrusion 18 positioned axially lower than would otherwise be possible for a container that is subject to high internal pressure. This can maximise the quantity of beverage that can be practically dispensed from the container 10. This advantage is discussed with reference to Figure 12 in which is shown the same sectional side view of the container base 14 of Figure 3 , together with a beverage dispensing tube 120.
  • the container is used as a beer keg 10 that is provided with a closure assembly that is sealed on to the tubular neck of the keg 10 in a push-fit arrangement.
  • the tube 120 is coupled to the closure assembly (not shown) and extends from it along the central longitudinal axis 12 into the base of the keg 10.
  • the axially lower end of the tube 120 extends into the central protrusion 18.
  • the end of the tube 120 sits within the central protrusion 18 and hangs just inside the apex of the central protrusion 18, thereby providing an annular gap through which a beverage can pass from the keg 10 into the tube 120 or visa-versa.
  • the shape of the central protrusion 18 also enables the axially lower end of the tube 120 to be correctly located and retained within the central protrusion during fitting and use.
  • the keg 10 In use, when dispensing a beverage, the keg 10 is maintained in an upright position.
  • the closure assembly allows a pressurised gas to be introduced into the headspace of the keg 10 to force the beverage out through the tube 120.
  • the central protrusion 18 As the axially lowermost end of the tube 120 is located within the central protrusion 18, and the central protrusion 18 is disposed at a relatively low axial position within the keg 10, this ensures that almost all of the beverage within the keg 10 can be extracted from it.
  • the tube 120 would need to bend away from the central longitudinal axis 12 at its lower end. Although this may marginally increase the amount of beverage that can be dispensed from the keg 10, this can complicate process of fitting the closure assembly and tube 120 to the keg 10.
  • inserting a bent tube 120 into the keg 10 can require a complicated automated fitting process.
  • the bending of the tube 120 away from the central longitudinal axis 12 can subject the closure assembly to which the tube 120 is attached at its axially upper end to uneven forces. This can reduce the reliability of the closure assembly, which is of particular concern when the keg 10 is subject to high internal pressure.
  • the petaloid base of the invention may be applied to a wide range of containers such as bottles and kegs.
  • Figures 4(a), 4(b) and 4(c) and Figures 5(a), 5(b) and 5(c) show a five-footed base of the invention applied, respectively, to a bottle 44 of 0.33 litre capacity, which may typically be used for carbonated soft drinks, and a keg 46 of 20 litres capacity, which may typically be used for beer.
  • These drawings show features omitted from Figures 1 and 2 , namely a substantially cylindrical side wall 48 surmounted by a neck portion 50.
  • the side wall 48 is integral with and terminates at its lower end in the base 14; in turn, the side wall 48 is integral with and terminates at its upper end in the neck portion 50 at the top of the container.
  • Figure 10 shows a further five-footed base of the invention applied to a keg 104 of 18-litre capacity with a non-cylindrical side wall 108.
  • the side wall 108 is convex, rotationally symmetrical about the central longitudinal axis of the keg 104 and so generally follows the shape of an ovoid.
  • the side wall curves smoothly into the spheroidal underlying contour of the base of the present invention.
  • the side wall curves smoothly into the concave neck of the keg 104.
  • FIG. 11 is an enlarged side view of a plastics preform for blow moulding into the container as shown in Figure 10 .
  • a variant of the base of the invention shown in Figures 6(a), 6(b) and 6(c) is applied to a bottle 52 of 1.5 litres capacity.
  • This variant has seven foot formations 54 instead of five, with a generally heptagonal central protrusion 56 between them.
  • seven-footed base variants can be applied to any size of container, such as bottles of 0.33 litres, 0.5 litres, 1 litre, 1.5 litres or larger, and kegs of 20 litres or other capacities.
  • An odd number of feet is preferred for optimum stability, there being at least three feet (in which case the central protrusion is generally triangular) but preferably not more than seven feet; five or seven feet are considered optimal.
  • the table below sets out a volume comparison between a conventional base and a base in accordance with the invention, assuming in this instance that the base defines five feet. Volumes in the table are expressed in millilitres (ml). The volume refers to the internal volume of the base, defined as the portion of the container below the cylindrical side wall of the container. It will be noted that the base of the invention has a volume approximately five times greater than the volume of a conventional petaloid container base, to the benefit of compactness and material usage for a given container capacity.
  • Container with five feet Conventional base of the invention 20 litre keg, dia 235 mm 128 (20%) 634 0.33 litre bottle, dia 60 mm 2.7 (18%) 15 0.5 litre bottle, dia 65 mm 3.5 (18%) 19 1.0 litre bottle, dia 80 mm 6.5 (18%) 36 1.5 litre bottle, dia 95 mm 11 (20%) 55
  • Container with five feet Radial projection of foot formations beyond radius of underlying base contour Diameter of contact circle 20 litre keg, dia 235 mm 18.1 mm 99.9 mm 0.33 litre bottle, dia 60 mm 5.3 mm 28.6 mm 0.5 litre bottle, dia 65 mm 5.5 mm 31.0 mm 1.0 litre bottle, dia 80 mm 7.1 mm 38.1 mm 1.5 litre bottle, dia 95 mm
  • Figures 7 to 9 provide additional dimensional information relating to a 20-litre keg having a five-footed base 14.
  • Figures 10 and 11 respectively show dimensional information relating to an 18-litre keg 104 having a five-footed base and its preform 106.
  • Figure 8 shows a partial sectional side view through the petaloid base of the 20-litre keg of Figure 7 , taken along section line VIII-VIII.
  • the resulting section plane intersects a foot formation 16 at its contact point 42, and is parallel to and is radially-spaced at a distance of 50 mm from the central longitudinal axis 12 of the keg 10.
  • Figure 9 is a partial sectional side view through the petaloid base of the 20-litre keg of Figure 7 , taken along section line IX-IX.
  • the resulting section plane is aligned with the central longitudinal axis 12 of the keg 10, and intersects the same foot formation 16 as shown in Figure 8 at its contact point 42.
  • the view shown in Figure 9 corresponds to the view shown in Figure 3 , but provides the following additional dimensional information relating to the 20-litre keg: RADIUS DATA Radius of underlying base contour 135.0 mm Radius of convex central protrusion 35.0 mm Radius of concave transition zone between the convex central protrusion and the radially inner end of a foot formation 12.0 mm Radius of a foot formation at a position on the inner portion adjacent the radially inner end 35.0 mm Radius of a foot formation at a position on the inner portion between the radially inner end and the central region of the foot formation 43.0 mm Radius of a foot formation at a position on the central region between the contact circle and the inner portion 50.0 mm Radius of a foot formation at a position on the central region that is radially inner of and adjacent to the contact circle 20.5 mm Radius of a foot formation at a position on the central region that is radially outer of and adjacent to the contact circle 24.0 mm Radius of
  • DISTANCE DATA Distance along central longitudal axis between convex central protrusion and plane containing the contact circle 3.0 mm Axial depth of convex central protrusion along central longitudinal axis 4.5 mm Distance along central longitudinal axis from underlying base contour to plane containing the contact circle 8.0 mm Distance along axis aligned with central longitudinal axis from transition zone (between central protrusion and a foot formation) to plane containing the contact circle 7.5 mm Axial depth of the base portion (i.e. axial distance from plane containing the contact circle to axially lower end of cylindrical side wall) 91.2 mm Radial length from central longitudinal axis to transition between base contour and foot formation 84.66 mm
  • Figure 10 provides additional dimensional data corresponding to the 18 litre keg 104: Convex radius of underlying base contour 135.0 mm Diameter of body at widest point 287.0 mm Convex radius of body contour 352.0 mm Convex radius of contour between body and neck 185.0 mm Concave radius of neck contour 65.0 mm Diameter of neck 65.0 mm Total axial length 490.0 mm Axial length from base to neck collar 472.0 mm Axial length from keg opening, to beverage fill point (FP) mark - denoting an 18 litre fill from a level base 112.5 mm
  • Figure 11 provides additional dimension data corresponding to the preform 106 of the 18 litre keg 104 of Figure 10: Total axial length 195.0 mm Axial length from base to neck collar 177.0 mm Axial thickness of base 6.0 mm Thickness of each cylindrical side wall 11.0 mm Axia
  • the improved petaloid base shape of the invention has various additional advantages. Its softly-curving shape with an absence of sharp radii is beneficial to resist stress cracking. Also, importantly, its surface area is less than equivalent known designs. Thus, for a given amount of resin, the invention allows a thicker wall and hence a stronger base. Alternatively it is possible to reduce weight and material usage while maintaining the strength of the base. A strong base is particularly important in applications where the containers are subjected to elevated internal pressure and/or elevated temperature, such as carbonated soft drinks, beer and hot-fill or pasteurised liquids.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packaging Frangible Articles (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Claims (15)

  1. Blütenförmige Basis (14) eines blasgeformten freistehenden Behälters (10), wobei die Basis (14) Folgendes aufweist: eine sphäroide unterliegende Basiskontur und mehrere sphäroide Fußausbildungen (16), die die unterliegende Basiskontur unterbrechen und aus dieser hervortreten, um mehrere entsprechende Füße (16) auszubilden; dadurch gekennzeichnet, dass:
    die Fußausbildungen (16) von einem zentralen Vorsprung (18) aus ausgehen;
    die Fußausbildungen (16) eiförmig sind; und
    die Fußausbildungen (16) jeweils Längsachsen (20) aufweisen, wobei die Achsen in Ebenen liegen, die sich radial von einer Mittelachse (12) der Basis aus erstrecken, wobei:
    die Längsachsen (20) der Fußausbildungen sich in konischem Verhältnis von der Mittelachse (12) der Basis aus nach außen und nach oben erstrecken.
  2. Basis (14) nach Anspruch 1, wobei die unterliegende Basiskontur ein abgeflachtes Sphäroid ist, dessen polare Achse mit einer Mittelachse (12) der Basis (14) zusammenfällt; und/oder die unterliegende Basiskontur im Wesentlichen halbkugelförmig ist.
  3. Basis nach Anspruch 1 oder 2, wobei die Fußausbildungen (16) verlängerte Ellipsoide und/oder abgeplattete Sphäroide sind.
  4. Basis (14) nach Anspruch 3, wobei der breiteste Teil des Querschnitts jeder Fußausbildung (16) zu einem inneren Ende der Fußausbildung (16) hin nach innen versetzt ist.
  5. Basis (14) nach einem der vorhergehenden Ansprüche, wobei die Längsachsen (20) der Fußausbildungen sich in der Mittelachse (12) der Basis (14) an einer Stelle treffen, die axial unterhalb der Basis (14) liegt.
  6. Basis (14) nach einem der vorhergehenden Ansprüche, wobei jede Fußausbildung (16) eine elliptische Schnittfläche mit der unterliegenden Basiskontur aufweist, wobei die Schnittfläche vorzugsweise eiförmig ist und/oder einen konkaven Querschnitt aufweist.
  7. Basis (14) nach einem der vorhergehenden Ansprüche, wobei der zentrale Vorsprung (18):
    einen Krümmungsradius aufweist, der kleiner ist als der Krümmungsradius der unterliegenden Basiskrümmung; und/oder
    sich bis zu einer Ebene unterhalb des niedrigsten Scheitelpunkts der unterliegenden Basiskontur erstreckt.
  8. Basis (14) nach einem der vorhergehenden Ansprüche, wobei eine Fußausbildung (16) und der zentrale Vorsprung (18) über einen sich weich krümmenden Übergangsabschnitt verbunden sind, wobei vorzugsweise:
    die Fußausbildung (16), der sich weich krümmende Übergangsabschnitt und der zentrale Vorsprung (18) gemeinsam einen wellenförmigen Querschnitt definieren; und/oder
    der Übergangsabschnitt eine Kurve definiert, deren Krümmung der Krümmung der Fußausbildungen (16) und/oder des zentralen Vorsprungs (18) entgegengesetzt ist.
  9. Basis (14) nach einem der vorhergehenden Ansprüche, wobei:
    der zentrale Vorsprung (18) im Wesentlichen bezogen auf das Äußere des Behälters (10) konvex ist; und/oder
    der zentrale Vorsprung (18) bezogen auf das Innere des Behälters eine Aussparung definiert, wobei die Aussparung angeordnet ist, ein freies Ende einer Fluidförderungsröhre zu lokalisieren und innerhalb des Behälters (10) zu halten; und/oder
    der zentrale Vorsprung (18) im Allgemeinen polygonal ist, wobei eine Anzahl von Seiten der Anzahl von Fußausbildungen (16) entspricht.
  10. Basis (14) nach einem der vorhergehenden Ansprüche, wobei die Fußausbildungen (16) durch Täler (22) voneinander getrennt sind, vorzugsweise wobei:
    die Täler (22) von Scheitelpunkten eines im Allgemeinen polygonalen zentralen Vorsprungs (18) aus ausgehen, wobei das Polygon eine Anzahl von Seiten hat, die der Anzahl von Fußausbildungen (16) entspricht.
  11. Basis (14) nach Anspruch 10, wobei die Täler (22) entlang der Basis nach außen hin breiter werden, vorzugsweise wobei:
    jedes Tal (22) einen inneren und einen äußeren Abschnitt aufweist und die Täler (22) im äußeren Abschnitt schärfer auseinanderlaufen als im inneren Abschnitt, und vorzugsweise wobei die Wände des Tals (22) sowohl im inneren als auch im äußeren Abschnitt des Tales auseinanderlaufen.
  12. Basis (14) nach einem der vorhergehenden Ansprüche, wobei in der Aufsicht jede Fußausbildung (16) einen vergrößerten Mittelbereich aufweist, der sich über einen inneren Abschnitt zu einem inneren Ende der Fußausbildung (16) hin nach innen hin verjüngt, vorzugsweise wobei:
    jede Fußausbildung sich von dem vergrößerten Mittelbereich aus über einen äußeren Abschnitt hinweg zu einem äußeren Ende der Fußausbildung (16) hin verjüngt.
  13. Blasgeformter freistehender Behälter (10) mit einer Basis (14) nach einem der vorhergehenden Ansprüche.
  14. Behälter (10) nach Anspruch 13, wobei die Fußausbildungen (16) der Basis (14) jeweils Berührungspunkte definieren, die gemeinsam um einen Berührungskreis herum beabstandet sind, dessen Durchmesser (x) folgendermaßen mit einem Seitenwanddurchmesser (Dy) des Behälters (10) im Verhältnis steht: − − − − − − − − 0 , 5 x Dy = k
    Figure imgb0005
     wobei k zwischen 3,6 und 5,5 liegt, vorzugsweise zwischen 4,0 und 5,3, stärker bevorzugt zwischen 4,2 und 5,0.
  15. Behälter (10) nach Anspruch 13 oder 14, umfassend eine Fluidförderungsröhre (120), ausgerichtet an einer zentralen Längsachse des Behälters (10), wobei sich die Röhre (120) zwischen der Basis (14) des Behälters (10) und einer Öffnung des Behälters (10) erstreckt.
EP11717204.9A 2010-04-06 2011-04-06 Blütenförmigem boden fur selbststehender behälter und behälter dafür Not-in-force EP2555984B1 (de)

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GB1005717A GB2479360A (en) 2010-04-06 2010-04-06 Petaloid Container Base with Reduced Diameter Contact Circle
PCT/EP2011/055383 WO2011124626A2 (en) 2010-04-06 2011-04-06 Self-standing container

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EP2555984A2 EP2555984A2 (de) 2013-02-13
EP2555984B1 true EP2555984B1 (de) 2016-08-24

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AU2015296030B9 (en) 2014-08-01 2020-01-30 The Coca-Cola Company Small carbonated beverage packaging with enhanced shelf life properties
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AU2011237887A1 (en) 2012-11-15
RU2598995C2 (ru) 2016-10-10
GB201105839D0 (en) 2011-05-18
GB2479451B (en) 2012-12-26
WO2011124626A3 (en) 2011-12-01
ZA201208013B (en) 2014-03-26
CN103003161A (zh) 2013-03-27
AU2011237887B2 (en) 2016-01-28
GB201005717D0 (en) 2010-05-19
PT2555984T (pt) 2016-11-16
BR112012025471A2 (pt) 2023-12-05
JP2013523549A (ja) 2013-06-17
WO2011124626A2 (en) 2011-10-13
EP2555984A2 (de) 2013-02-13
RU2598995C9 (ru) 2016-11-20
CN103003161B (zh) 2016-03-30
DK2555984T3 (en) 2016-12-05
RU2012147015A (ru) 2014-05-20
GB2479360A (en) 2011-10-12
PL2555984T3 (pl) 2017-02-28
US20130062306A1 (en) 2013-03-14
ES2602135T3 (es) 2017-02-17
JP5641267B2 (ja) 2014-12-17
HUE033351T2 (en) 2017-11-28
GB2479451A (en) 2011-10-12
UA109276C2 (xx) 2015-08-10

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