EP2981474A1 - Recipient ayant un fond muni d'une voute a decrochement - Google Patents
Recipient ayant un fond muni d'une voute a decrochementInfo
- Publication number
- EP2981474A1 EP2981474A1 EP14718693.6A EP14718693A EP2981474A1 EP 2981474 A1 EP2981474 A1 EP 2981474A1 EP 14718693 A EP14718693 A EP 14718693A EP 2981474 A1 EP2981474 A1 EP 2981474A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- seat
- extends
- vault
- rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims 1
- 239000011229 interlayer Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000000071 blow moulding Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000019892 Stellar Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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
- 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
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
-
- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0018—Ribs
-
- 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
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0018—Ribs
- B65D2501/0036—Hollow circonferential ribs
Definitions
- the invention relates to the field of containers, especially bottles or jars, manufactured by blow molding or stretch blow molding from plastic blanks such as polyethylene terephthalate (PET).
- PET polyethylene terephthalate
- a container typically comprises a body defining the general volume of the container, extended at an upper end of the container by a neck, through which the container is filled and emptied, and at a lower end by a bottom which close the container.
- the bottom must be able to withstand without significant deformation at least the hydrostatic pressure of the column of liquid that overcomes it.
- the bottoms are generally of petaloid shape, comprising an alternation of valleys, of hemispherical shape, and protruding feet, the ends of which form a seat for the container (see, for example, the French patent application FR 2 959214 or its American equivalent US 2013/043255).
- the petaloid background appears as a relatively successful solution with good resistance to high internal pressures in the container (thanks to the hemispherical shape of the valleys).
- the petaloid background requires a large amount of material (of the order of 15 to 18 g for a 0.5 l container), as well as a relatively high blowing pressure, to ensure correct impression taking of the material. feet and valleys. These constraints, however, appear to be justified by the relatively high price at which the products concerned are distributed.
- the petaloid bottoms can not be suitable for flat-type liquid applications (typically table water), for which the blowing pressure and the quantity of material used (today about 10 g for a container) are minimized. 0.5 I).
- a bottom provided with a simple concave arch is not able to withstand without significant deformation the only hydrostatic pressure of the liquid which overcomes it. It was therefore proposed to provide the fund with radial ribs, intended to strengthen the bottom to allow it to better resist the deformations induced by the pressure of the contents.
- a plastic container provided with a body and a bottom extending from a lower end of the body, the bottom comprising:
- each main groove being bordered laterally, at its junction with each sector of the vault which is adjacent, by a reinforcing rib which protrudes from said sector.
- the container offers better mechanical performance than conventional grooved funds with equal amount of material, while providing good breathability.
- each main groove has a bottom flanked by two side walls, and in that each reinforcing rib extends in the extension of a side wall.
- each rib extends internally to the central zone, the bottom comprises an annular cheek which extends substantially perpendicularly to the laying plane and forms the junction between the latter and a peripheral edge of the vault.
- Each rib extends externally to the laying plane.
- each rib is flush with it.
- the ribs located on either side of the same angular sector extend in the continuity of one another.
- the bottom has, internally to the laying plane, two concentric regions, namely a central region and a peripheral region, separated by a median axial recess which extends annularly in a continuous manner, both on the angular sectors, the grooves and the ribs around the central zone, so that the central region is axially offset from the peripheral region towards the interior of the container.
- the main reinforcing grooves extend radially beyond the seat.
- the bottom comprises a series of reinforcement intermediate grooves, which extend locally astride the seat.
- Figure 1 is a bottom view in perspective of a plastic container
- Figure 2 is a perspective view, on an enlarged scale, showing the bottom of the container of Figure 1 with inset, a still larger scale detail;
- Figure 3 is a detail sectional view of the bottom shown in Figure 2, according to the sectional plane III-III;
- FIG. 4 is a perspective view, partly broken away, of the bottom of FIG. 2.
- Figure 1 a container 1, in this case a bottle, made by stretching blow from a thermoplastic preform, for example PET (polyethylene terephthalate).
- a thermoplastic preform for example PET (polyethylene terephthalate).
- This container 1 comprises, at an upper end, a neck 2, provided with a rim 3.
- the container 1 comprises, in its upper part a shoulder 4 flaring in the opposite direction to neck 2, this shoulder 4 being extended by a side wall or body 5, of generally cylindrical shape of revolution about a main axis X of the container 1.
- the container 1 further comprises a bottom 6 which extends opposite the neck 2, from a lower end of the body 5.
- the bottom 6 of the container comprises a peripheral seat 7 in the form of an annular bead which extends substantially axially in the extension of the body 5.
- the seat 7 defines a laying plane 8 perpendicular to the longitudinal axis X of the container 1, which laying plane 8 forms the lower end of the container 1 and allows it to to be placed upright on a flat surface.
- the seat 7 Towards the interior of the container 1, the seat 7 comprises a frustoconical annular cheek 9 which extends towards the interior of the container 1 in the extension of the laying plane 8, the truncated cone formed by the cheek 9 opening downward (in relief) and having an apex angle of at least 70 ° (and less than or equal to 90 °).
- This cheek 9 may have a height of between 1 mm and 3 mm, for example about 1.5 mm.
- the bottom 6 of the container further comprises a concave arch 10, in the form of a substantially spherical cap concavity facing outwardly of the container 1 in the absence of stress, that is to say in the absence of contained in the container 1.
- the arch 10 extends from the seat 7, in the extension of the cheek 9 (which forms junction between the laying plane 8 and a peripheral edge of the vault 10), to a central zone 11 of the bottom 6 forming a pin projecting towards the inside of the container 1, with at its center an amorphous pellet 12 which corresponds the injection zone of the constituent material of the preform used to make the container 1 and can perform a centering function during the blow molding of the container 1.
- the bottom 6 of the receptacle comprises a series of main reinforcement grooves 13 formed in the arch 10 towards the inside of the receptacle 1, which extend radially from the central zone 11 to the seat 7 at least.
- the main reinforcing grooves 13 extend radially beyond the seat 7, rising laterally on a lower part of the body 5. The grooves thus together form a stellar reinforcing structure of the bottom of the container.
- the main grooves 13 extend radially over the entire roof 10, straddling the seat 7 and partially on the body 5. It is therefore understood that the laying plane 8 is discontinuous, since interrupted at the right of each main groove 13.
- the main grooves 13 are for example five in number (as in the example illustrated, which corresponds to a container with a capacity of 0.5 liter), but this number could be higher, especially six in the case of a container with a capacity greater than or equal to 1 liter, or seven in the case of a container with a capacity greater than or equal to 2.5 liters.
- the bottom 6 of the container is further provided with a series of reinforcement interleaved grooves 14, located between the main grooves 13, and which extend locally astride the seat 7 they thus contribute to rigidify.
- the intermediate ribs 14 extend outwardly beyond the seat 7 laterally upwardly on a lower part of the body 5, as the grooves 13 main. In the example illustrated in FIG. 2, the intermediate ribs 14 overlap the cheek 9 but stop at the periphery of the arch 10.
- the main grooves 13 serve to increase the resistance of the vault 10 to the collapse (or even to the inversion) under the effect of the forces induced by the pressure exerted by the contents of the container 1 (typically a flat liquid possibly pressurized by the injection of a drop of liquefied gas into the volume defined in the neck 2 between the free surface of the liquid and the rim 3, immediately before the clogging of the container 1).
- the main grooves 13 subdivide the vault 10 into a series of angular sectors of substantially triangular shape.
- Each main reinforcing groove 13 has a bottom 16 which extends from the central zone 11 in a radial direction, flanked by two side walls 17.
- P is the depth of the groove 13, measured between the edge of the angular sectors adjacent to the groove 13, and the bottom 16 thereof.
- the bottom 16 of the groove 13 has a rounded section in cross-section (which could, however, be flattened), the side walls 17 defining in cross section an open angle, so that the groove 13 has a section V-shaped profile with rounded tip.
- each main groove 13 is laterally edged (that is to say on either side along the radial direction of extension of the groove 13) by a rib 18 which extends protruding from the adjacent angular sector, at the junction between the groove 13 and the sector 15.
- Each reinforcing rib 18 has the function of forming a reinforcing beam (or stiffener) acting in the manner of a strut and intended to increase the resistance of the bottom 6 of the container to the deformations due to the pressure exerted by the contents of the In particular, the reinforcement ribs 18 are intended to minimize the risk of the bottom 6 (and more precisely of the vault 10) becoming overturned under the effect of too much internal pressure on the container 1.
- each reinforcing rib 18 provides a continuous junction between the main groove 13 which it borders and the arch 10. More specifically, and as illustrated in FIG. 3, each reinforcing rib 18 has a internal section 19, which extends in the extension of the side wall 17 to a crest line 20 forming an apex of the rib 18, and an outer section 21 which joins the adjacent angular sector.
- H the height of the rib 18, measured between the edge of the adjacent angular sector and the ridge line. This height H is preferably equal to or greater than half the depth of the main groove 13:
- each reinforcement rib 18 extends internally to the central zone 11, and externally to the laying plane 8. More specifically, each rib 18 is anchored in the cheek 9 by flush with the laying plane 8 at its junction with it. In this way, the rib 18 does not form any extra thickness relative to the laying plane, to the benefit of the stability of the container 1.
- the reinforcing ribs 18 bordering two adjacent main grooves 13, located on either side of the same angular sector of the vault 10, preferably extend in continuity with each other. the other, making their junction in the vicinity of the central zone 11 and jointly forming a V-shaped continuous reinforcement structure.
- each angular sector of the vault 10 is bordered externally by the cheek 9, and laterally and internally by two adjacent reinforcing ribs 18 and adjoining.
- each main groove 13 protrudes, with respect to each sector of the vault 10, towards the interior of the container 1, while each reinforcing rib 18 extends projecting, with respect to the angular sector, to the outside of the container 1.
- the bottom of the container thus structured provides better resistance to deformation than ordinary bottom, with equal amount of material.
- the bottom 6 of the container may also have two concentric regions, namely an annular central region 22 surrounding the central zone 11 of the bottom 6, and a region 23 ring device surrounding the central region 22, separated by a recess 24 which extends axially over a predetermined height.
- This recess 24 is median with respect to the vault 10, that is to say that the central region 22 and the peripheral region 23 have substantially the same radial extension.
- the recess 24 extends continuously, that is to say, it is not interrupted to the right of the main grooves 13 but extends to the bottom 16 thereof, or the right ribs 18 reinforcement, but straddles these.
- the axial recess 24 extends annularly around the zone
- the recess 24 forms a ring with a circular contour.
- the central region 22 of the bottom 6 of the container is slightly offset relative thereto inwardly. of the container 1.
- the recess 24 has the function of maintaining the stability of the container 1 by inducing a stiffening of the vault 10 in its median region, and limiting the deformation of the vault 10 so as to widen the seat 7 towards the center of the bottom 6 of the container.
- a container 1 of PET as described above with a capacity of 0.5 liter, with a mass of 10 g, could be blown without difficulty at an air pressure of about 20 bar, the container 1 final filled with still water providing good mechanical performance including under a condition of overpressure due to nitrogen at the neck 2.
- the container 1 provided with this bottom 6 has a good compromise between the mechanical performance (that is to say the capacity of the container 1 to resist deformations and, when they occur, to undergo them in a controlled manner) and the blowing (that is to say the capacity of the container 1 to be formed by blowing).
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1352976A FR3003848B1 (fr) | 2013-04-02 | 2013-04-02 | Recipient ayant un fond muni d'une voute a decrochement |
PCT/FR2014/050762 WO2014162088A1 (fr) | 2013-04-02 | 2014-03-31 | Recipient ayant un fond muni d'une voute a decrochement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2981474A1 true EP2981474A1 (fr) | 2016-02-10 |
EP2981474B1 EP2981474B1 (fr) | 2017-03-08 |
Family
ID=48979898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14718693.6A Active EP2981474B1 (fr) | 2013-04-02 | 2014-03-31 | Recipient ayant un fond muni d'une voute a decrochement |
Country Status (6)
Country | Link |
---|---|
US (1) | US10196168B2 (fr) |
EP (1) | EP2981474B1 (fr) |
CN (1) | CN105189299B (fr) |
FR (1) | FR3003848B1 (fr) |
MX (1) | MX359732B (fr) |
WO (1) | WO2014162088A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH707262A2 (de) * | 2012-11-30 | 2014-05-30 | Alpla Werke | Kunststoffbehälter. |
USD810575S1 (en) * | 2016-03-04 | 2018-02-20 | Aquawell Group AG | Bottle |
US20200189785A1 (en) * | 2017-06-16 | 2020-06-18 | Societe Des Produits Nestle S.A. | Container having a bottom base provided with notches |
MX2020011255A (es) * | 2018-04-26 | 2020-11-12 | Graham Packaging Co | Recipiente de relleno presurizado resistente al agrietamiento del anillo de pie. |
IT201800005338A1 (it) * | 2018-05-14 | 2019-11-14 | Contenitore in materiale termoplastico | |
JP7370248B2 (ja) * | 2019-12-27 | 2023-10-27 | 株式会社吉野工業所 | ボトル |
AU2021202920A1 (en) * | 2020-05-08 | 2021-11-25 | Orora Packaging Australia Pty Ltd | A bottle, and an insert and a mould for making the bottle |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2382373A1 (fr) * | 1977-03-02 | 1978-09-29 | Solvay | Corps creux en matiere thermoplastique |
JPH0644806Y2 (ja) * | 1989-07-10 | 1994-11-16 | 株式会社吉野工業所 | 合成樹脂製壜体 |
FR2753435B1 (fr) | 1996-09-16 | 1998-10-16 | Sidel Sa | Recipient, en particulier bouteille, en matiere plastique |
US20030196926A1 (en) * | 2001-04-19 | 2003-10-23 | Tobias John W. | Multi-functional base for a plastic, wide-mouth, blow-molded container |
FR2822804B1 (fr) * | 2001-04-03 | 2004-06-04 | Sidel Sa | Recipient, notamment bouteille, en matiere thermoplastique dont le fond comporte une empreinte en croix |
US6634517B2 (en) * | 2001-09-17 | 2003-10-21 | Crown Cork & Seal Technologies Corporation | Base for plastic container |
FR2904808B1 (fr) * | 2006-08-08 | 2011-03-04 | Sidel Participations | Fond de corps creux obtenu par soufflage ou etirage soufflage d'une preforme en materiau thermoplastique, corps creux conprenant un tel fond |
FR2904809B1 (fr) * | 2006-08-08 | 2008-10-24 | Sidel Participations | Fond de corps creux obtenu par soufflage ou etirage soufflage d'une preforme en materiau thermoplastique, corps creux comprenant un tel fond |
FR2932458B1 (fr) * | 2008-06-13 | 2010-08-20 | Sidel Participations | Recipient, notamment bouteille, en matiere thermoplastique equipe d'un fond renforce |
WO2011014759A2 (fr) * | 2009-07-31 | 2011-02-03 | Amcor Limited | Contenant de remplissage à chaud |
FR2959214B1 (fr) | 2010-04-21 | 2012-06-29 | Sidel Participations | Fond de recipient petaloide renforce |
FR2961492B1 (fr) * | 2010-06-18 | 2012-07-13 | Sidel Participations | Recipient leger a fond renforce |
US9150320B2 (en) * | 2011-08-15 | 2015-10-06 | Graham Packaging Company, L.P. | Plastic containers having base configurations with up-stand walls having a plurality of rings, and systems, methods, and base molds thereof |
-
2013
- 2013-04-02 FR FR1352976A patent/FR3003848B1/fr active Active
-
2014
- 2014-03-31 MX MX2015013626A patent/MX359732B/es active IP Right Grant
- 2014-03-31 US US14/777,892 patent/US10196168B2/en active Active
- 2014-03-31 EP EP14718693.6A patent/EP2981474B1/fr active Active
- 2014-03-31 CN CN201480016263.XA patent/CN105189299B/zh active Active
- 2014-03-31 WO PCT/FR2014/050762 patent/WO2014162088A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US20160288946A1 (en) | 2016-10-06 |
EP2981474B1 (fr) | 2017-03-08 |
CN105189299B (zh) | 2017-05-17 |
WO2014162088A1 (fr) | 2014-10-09 |
MX2015013626A (es) | 2016-02-25 |
CN105189299A (zh) | 2015-12-23 |
FR3003848B1 (fr) | 2015-04-17 |
FR3003848A1 (fr) | 2014-10-03 |
US10196168B2 (en) | 2019-02-05 |
MX359732B (es) | 2018-10-09 |
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