US20160236845A1 - Container with a cross-section which changes between a square contour and a rectangular contour - Google Patents

Container with a cross-section which changes between a square contour and a rectangular contour Download PDF

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Publication number
US20160236845A1
US20160236845A1 US15/027,762 US201415027762A US2016236845A1 US 20160236845 A1 US20160236845 A1 US 20160236845A1 US 201415027762 A US201415027762 A US 201415027762A US 2016236845 A1 US2016236845 A1 US 2016236845A1
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United States
Prior art keywords
container
faces
cross
section
pair
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.)
Abandoned
Application number
US15/027,762
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English (en)
Inventor
Michel Boukobza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sidel Participations SAS
Original Assignee
Sidel Participations SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sidel Participations SAS filed Critical Sidel Participations SAS
Assigned to SIDEL PARTICIPATIONS reassignment SIDEL PARTICIPATIONS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOUKOBZA, MICHEL
Publication of US20160236845A1 publication Critical patent/US20160236845A1/en
Abandoned legal-status Critical Current

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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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • 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
    • 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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/008—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars
    • B65D79/0084—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars in the sidewall or shoulder part thereof
    • 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
    • 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
    • B65D2501/0081—Bottles of non-circular cross-section

Definitions

  • the invention relates to the field of containers made of thermoplastic material, such as PET, and more particularly, although not exclusively, the containers, such as bottles, that can be hot-filled.
  • a container is in general manufactured by blow molding or stretch blow molding of an injected preform, which is first heated in a stream in a furnace that is provided with elements for heating by radiation, and then introduced hot into a mold that is provided with a cavity that defines the counter-imprint of the container.
  • the temperature of the liquid during a hot-filling frequently exceeds 60° C. and commonly reaches 90° C. to 95° C. (or a temperature that is higher than 15 the glass transition temperature of the PET).
  • An ordinary container offers an inadequate mechanical strength that during hot-filling would be reflected by significant deformations resulting from the thermal shock that accompanies such a filling.
  • the container would also deform because of the internal depressurization that accompanies the reduction of the temperature.
  • the containers designed for hot-filling (referred to as HR, acronym for the English expression “heat-resistant”) benefit from a suitable manufacture and particular structural arrangements that make them less sensitive to deformations and make it possible for them to preserve their general shape permanently.
  • Containers are thus also known that have an approximately square cross-section, provided with panels connected by slightly bent facets, placed on the four corners of the square and designed to be deformed by flattening to absorb the depressurization that accompanies the cooling of the contents, cf., for example, the U.S. Pat. No. 7,699,183 (COCA COLA).
  • the deformation of the container is controlled, it is noted in practice that such is not the case.
  • the container has a tendency to deform overall, flattening from its initially square shape into a diamond shape in which the angles between the panels are no longer right angles.
  • the result is a lack of rigidity of the container during handling. This lack tends to get worse with the reduction in the quantity of material used (which is the current general tendency in container manufacturers, essentially for reasons of cost and changes in pollution-control standards).
  • a first obvious solution consists in increasing the thickness of the container.
  • a second solution consists in providing the container with a belt, cf., for example, the European patent application EP 2 473 413 (SIDEL PARTICIPATIONS).
  • a first objective is to propose a container that offers better resistance to deformation, in particular due to depressurization that accompanies the cooling of the contents when the latter were introduced hot.
  • a second objective is to propose a solution that makes it possible for the container to preserve its general shape when it is subjected to internal depressurization.
  • a third objective is to propose a container with a square cross-section that does not have a tendency to adopt a diamond shape when it is subjected to internal depressurization.
  • a container that is made of plastic material, comprising a body that extends along a main axis, a shoulder that forms an extension of the body from an upper side, and a bottom that forms an extension of the body from a lower side, with the body comprising four faces, namely a first pair of faces that, in cross-section, are parallel to one another, and a second pair of faces that, in cross-section, are parallel to one another and perpendicular to the faces of the first pair, with the faces of the first pair being separated, in the cross-section in the vicinity of the shoulder as well as in the vicinity of the bottom, by a distance D, and the faces of the second pair being separated, in the cross-section in the vicinity of the shoulder as well as in the vicinity of the bottom, by a distance D′, with this container being such that:
  • This shape ensures better resistance on the part of the container to deformations, in particular during internal depressurization that accompanies the cooling of the contents.
  • FIG. 1 is a realistic front view showing a container made of plastic material
  • FIG. 2 is a side view of the container of FIG. 1 , rotated by 90° in relation to this figure;
  • FIG. 3 is a cross-section of the container of FIG. 1 , taken interchangeably along the plane III-III or the plane III′-III′;
  • FIG. 4 is a cross-section of the container of FIG. 1 , taken along the plane IV-IV.
  • a container 1 (in this case a bottle) made of plastic material such as PET is shown in FIGS. 1 and 2 .
  • the container has a capacity of 0.5 l, but this capacity could be any suitable or known value, whether it is lower (typically 0.33 l or 0.25 l) or higher (typically 1.5 l, or else 2 l).
  • the container 1 comprises multiple parts, namely a body 2 , a shoulder 3 that forms an extension of the body 2 from an upper end of the latter, a neck 4 that tops the shoulder 3 , and a bottom 5 that forms an extension of the body 2 from a lower end of the latter.
  • the body 2 which forms the major portion of the volume of the container 1 , extends along a main axis X that approximately connects the geometric center of the neck 4 and that of the bottom 5 .
  • the axis X of the container defines a vertical direction, with any plane that is orthogonal to the axis X being termed transverse and any direction perpendicular to the axis X being termed radial.
  • the shoulder 3 supplements the volume of the container 1 and forms an essentially conical junction between the body 2 and the neck 4 .
  • the bottom 5 closes the body 2 transversely downward.
  • This container 1 obtained by blow molding, or preferably by stretch blow molding from a parison (i.e., a preform or an intermediate container that has undergone a first blow molding that is not final) is designed in particular to be hot-filled, with the temperature of the filling liquid able to reach 95° C. or a temperature that can be higher than the glass transition temperature of the container 1 , all dependent upon its material (let us recall that the glass transition temperature of PET is approximately 80° C.).
  • the body 2 is symmetrical in relation to a median plane P located essentially at mid-distance from the ends of the body 2 .
  • the body 2 has, in the area of the median plane P, a belt 6 where the body 2 is curved, i.e., its transverse dimensions are reduced.
  • the belt 6 divides the body 2 into an upper cross-section 7 , which extends between the belt 6 and the shoulder 3 , and a lower symmetrical cross-section 8 of the upper cross-section 7 in relation to the median plane P, and which extends between the belt 6 and the bottom 5 .
  • the body In its upper cross-section 7 as well as in its lower cross-section 8 , the body has four faces that extend approximately vertically from the shoulder 3 (or the bottom 5 ) to the belt 6 , namely:
  • the faces 9 of the first pair are separated by a distance D
  • the faces 10 of the second pair are separated by a distance D′ that is equal or approximately equal to the distance D between the faces 9 of the first pair, with the expression “equal or approximately equal” meaning that the separation between the distances D and D′ is, strictly speaking, less than 5%.
  • the faces 9 of the first pair preferably have the same width, denoted L 2 .
  • the faces 10 of the second pair also preferably have the same width, denoted L 2 .
  • the widths L 1 and L 2 are advantageously equal or approximately equal (in the meaning indicated above):
  • the lateral faces 9 , 10 are thus inscribed in a square (or almost square) contour of side D.
  • a square is compared to a rectangle whose sides D, D′ are equal or approximately equal in the meaning indicated above, consequently allowing a variation of 5%.
  • the faces 9 of the first pair are separated by a distance D 1
  • the faces 10 of the second pair are separated by a distance D 2 that is different from D 1 , with the term “different” meaning that the separation between D 1 and D 2 is greater than or equal to 5%.
  • the ratio between D 1 and D 2 does not, however, exceed 15%.
  • the distances D and D 2 are in a ratio such that:
  • this ratio is approximately 0.93:
  • the faces 9 , 10 are inscribed in a rectangular contour whose sides have D 1 and D 2 for respective lengths, with the term “rectangle” meaning, in contrast to the square defined above, that the ratio between its sides is greater than or equal to 5%.
  • the faces 9 of the first pair advantageously have the same length L 1 ′.
  • the faces 10 of the second pair advantageously have the same length L 2 ′.
  • At least one of the distances D 1 and D 2 is preferably less than the distance D; advantageously, the distances D 1 and D 2 are both less than the distance D, in such a way that, as illustrated in FIG. 4 , the rectangle in which the body 2 is inscribed in the cross-section in the vicinity of the neck 4 as well as in the vicinity of the bottom 5 is, strictly speaking, included in the square in which the body 2 is inscribed in the cross-section in the vicinity of the neck 4 as well as in the vicinity of the bottom 5 (in dotted lines in FIG. 3 ).
  • the distances between the faces 9 , 10 vary continuously along the axis X of the body 2 , respectively from the value D (that can be considered to be maximum when the plane of the cross-section being considered is also as close as possible to the upper end, or, conversely, lower than the body 2 ) to the value D 1 , and from the value D to the value D 2 .
  • the width of the body 2 measured transversely, gradually—and not abruptly—decreases from the ends of the body 2 to its median zone.
  • the body 2 also comprises beveled facets 11 connecting the faces 9 , 10 .
  • the facets 11 in the cross-section in the vicinity of the shoulder (in the plane III-III) as well as in the vicinity of the bottom (in the plane III′-III′), the facets 11 preferably form an angle A of approximately 450 with the faces 9 , 10 .
  • this angle is not constant along the axis X of the container 1 .
  • the facets 11 form a first angle A 1 that is, strictly speaking, less than 45° with the faces 9 of the first pair, while conversely, the facets 11 form an angle A 2 that is, strictly speaking, greater than 45°, complementary with the angle A 1 , with the faces 10 of the second pair:
  • the angle A 1 is between approximately 37° (in which case the angle A 2 is approximately 530) and approximately 43° (in which case the angle A 2 is approximately 470).
  • the angle A 1 is approximately 400 (with the angle A 2 then being approximately 500).
  • the facets 11 provide to the body 2 an essentially octagonal cross-section. It is possible, however, through improper use of language, to describe this cross-section as square, taking into account the considerably smaller widths of the facets 11 over those of the faces 9 , 10 .
  • the rectangular cross-section of the body 2 in the median zone tends, under the action of depressurization in the container 1 , to become flattened also by decreasing the distance D 1 and jointly increasing the distance D 2 , with no significant alteration of the perpendicularity of the faces 9 to the faces 10 .
  • the thus deformed cross-section of the body 2 was illustrated in broken lines in FIG. 4 .
  • This controlled deformation makes it possible to maintain the rigidity of the container 1 , in particular during its handling, and also to preserve its appearance, with the flattening of the body 2 in the median zone remaining imperceptible to the consumer.
  • deformable panels 12 can be included in the faces 9 , 10 in such a way as to absorb a portion of the deformations due to pressure variations within the container 1 .
  • stiffeners 13 can also be provided, in particular on the facets 11 for limiting the deformations of the latter and thus for promoting the controlled deformation of the rectangular cross-section of the body 2 in the median zone, as disclosed above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
US15/027,762 2013-10-23 2014-10-06 Container with a cross-section which changes between a square contour and a rectangular contour Abandoned US20160236845A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1360348A FR3012115B1 (fr) 2013-10-23 2013-10-23 Recipient a section evolutive entre un contour carre et un contour rectangulaire
FR1360348 2013-10-23
PCT/FR2014/052524 WO2015059381A1 (fr) 2013-10-23 2014-10-06 Récipient à section évolutive entre un contour carré et un contour rectangulaire

Publications (1)

Publication Number Publication Date
US20160236845A1 true US20160236845A1 (en) 2016-08-18

Family

ID=50101962

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/027,762 Abandoned US20160236845A1 (en) 2013-10-23 2014-10-06 Container with a cross-section which changes between a square contour and a rectangular contour

Country Status (5)

Country Link
US (1) US20160236845A1 (fr)
EP (1) EP3060487B1 (fr)
CN (1) CN105658529B (fr)
FR (1) FR3012115B1 (fr)
WO (1) WO2015059381A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170334628A1 (en) * 2016-05-23 2017-11-23 Monis Bangi Hot-Fill Container Having Vacuum Absorption Sections
US20180186500A1 (en) * 2016-12-29 2018-07-05 Graham Packaging Company, L.P. Hot-fillable plastic container
JP2020097436A (ja) * 2018-12-18 2020-06-25 株式会社吉野工業所 角形ボトル

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090057263A1 (en) * 2007-08-31 2009-03-05 Barker Steven P Hot fill container

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1397037A (fr) * 1964-05-26 1965-04-23 Unipol S A Soc Capacité constituant un conditionnement pour produits fluides
US4894268A (en) * 1987-12-07 1990-01-16 Sonoco Products Company Stretch blow-molded polyethylene terephthalate wide mouth container and intermediate article
US6942116B2 (en) * 2003-05-23 2005-09-13 Amcor Limited Container base structure responsive to vacuum related forces
US7472798B2 (en) * 2006-08-15 2009-01-06 Ball Corporation Polygonal hour-glass hot-fillable bottle
US7699183B2 (en) * 2007-04-09 2010-04-20 The Coca-Cola Company Square bottle manufactured from synthetic resin
FR2949756B1 (fr) * 2009-09-04 2012-02-03 Sidel Participations Recipient a facettes rainurees.
US9862518B2 (en) * 2009-11-09 2018-01-09 Graham Packaging Company, L.P. Plastic container with improved sidewall configuration

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090057263A1 (en) * 2007-08-31 2009-03-05 Barker Steven P Hot fill container

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170334628A1 (en) * 2016-05-23 2017-11-23 Monis Bangi Hot-Fill Container Having Vacuum Absorption Sections
US10850905B2 (en) * 2016-05-23 2020-12-01 Alpla Werke Alwin Lehner Gmbh & Co. Kg Hot-fill container having vacuum absorption sections
US10968022B2 (en) 2016-05-23 2021-04-06 Alpla Werke Alwin Lehner Gmbh & Co. Kg Hot-fill container having vacuum absorption sections
US20180186500A1 (en) * 2016-12-29 2018-07-05 Graham Packaging Company, L.P. Hot-fillable plastic container
US10899493B2 (en) * 2016-12-29 2021-01-26 Graham Packaging Company, L.P. Hot-fillable plastic container
US11661229B2 (en) 2016-12-29 2023-05-30 Graham Packaging Company, L.P. Hot-fillable plastic container
JP2020097436A (ja) * 2018-12-18 2020-06-25 株式会社吉野工業所 角形ボトル
JP7162517B2 (ja) 2018-12-18 2022-10-28 株式会社吉野工業所 角形ボトル

Also Published As

Publication number Publication date
FR3012115B1 (fr) 2015-12-11
CN105658529A (zh) 2016-06-08
WO2015059381A1 (fr) 2015-04-30
EP3060487A1 (fr) 2016-08-31
FR3012115A1 (fr) 2015-04-24
EP3060487B1 (fr) 2017-09-20
CN105658529B (zh) 2017-10-31

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Owner name: SIDEL PARTICIPATIONS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOUKOBZA, MICHEL;REEL/FRAME:038335/0759

Effective date: 20160408

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION