EP3564141A1 - Contenant en résine - Google Patents

Contenant en résine Download PDF

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Publication number
EP3564141A1
EP3564141A1 EP17887639.7A EP17887639A EP3564141A1 EP 3564141 A1 EP3564141 A1 EP 3564141A1 EP 17887639 A EP17887639 A EP 17887639A EP 3564141 A1 EP3564141 A1 EP 3564141A1
Authority
EP
European Patent Office
Prior art keywords
container
resin made
curved
continuous
curved portion
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.)
Withdrawn
Application number
EP17887639.7A
Other languages
German (de)
English (en)
Other versions
EP3564141A4 (fr
Inventor
Shinya Ito
Masatoshi Aihara
Takashi Akiyama
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.)
Suntory Holdings Ltd
Original Assignee
Suntory Holdings Ltd
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 Suntory Holdings Ltd filed Critical Suntory Holdings Ltd
Publication of EP3564141A1 publication Critical patent/EP3564141A1/fr
Publication of EP3564141A4 publication Critical patent/EP3564141A4/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom
    • 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
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • 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
    • B65D2501/0027—Hollow longitudinal ribs

Definitions

  • This invention relates to a resin made container such as a PET bottle.
  • Patent Document 1 a PET bottle having a constricted portion and a plurality of annular grooves, which are provided in a body portion of the bottle.
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. 2008-13180
  • an object of the invention is to improve the buckling resistance of a resin made container without impairing its aesthetic feature.
  • the resin made container includes a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with the shoulder portion and a bottom portion continuous with the body portion and disposed at a lowermost portion of the bottle; wherein at a lateral wall lower end of the bottom portion, there is formed a step which is receded to the inner side along a circumferential direction.
  • the step has a vertical cross sectional shape which is formed of a first curved portion which protrudes to the outer side of the container, a second curved portion which protrudes to the inner side of the container, and a third curved portion which protrudes to the outer side of the container, the first through third curved portions being formed continuous in this order from the upper side.
  • the second curved portion has a curvature radius smaller than a curvature radius of the first curved portion.
  • the curvature radii respectively of the first curved portion, the second curved portion and the third curved portion are all smaller than or equal to 5 mm.
  • the step has a height smaller than or equal to 4 mm.
  • a diameter decrease ratio of a maximum outer diameter of a bottom face of the bottom portion relative to a maximum outer diameter of the lateral wall of the bottom portion ranges from 60% to 90%.
  • a bottom wall of the bottle portion has a receded portion which is receded to the inner side of the container.
  • this step functions like a spring, thus improving the buckling resistance of the container. Therefore, as there is no need to provide a constricted portion or a plurality of annular grooves conventionally provided, the aesthetic feature of the container is not impaired and also the buckling deformation will occur less unlikely.
  • a term “vertical direction” means a direction of a center axis X-X of a plastic bottle 1 shown in Fig. 1 (to be referred to simply as “bottle 1" hereinafter).
  • a term: upper side refers to the upper end side in the drawings and a term: lower side refers to the lower end side of the drawings.
  • lateral direction or “horizontal direction” means the direction perpendicular to the center axis X-X direction.
  • a term "circumferential direction” means a direction along the contour of the horizontal cross sectional shape.
  • radial direction means the radial direction of a circle when the the center axis X-X is taken as the center of such circle.
  • a term "height" means a length along the center axis X-X direction.
  • a term "depth” means a length along the radial direction.
  • horizontal cross sectional shape means a cross sectional shape of the bottle 1 in a plane (horizontal cross section) perpendicular to the center axis X-X.
  • vertical sectional shape means a cross sectional shape of the bottle 1 in a plane (vertical cross section) along the center axis X-X.
  • the bottle 1 relating to the instant embodiment includes, from the upper side thereof, a spout portion 2 to/from which a cap can be attached/detached, a shoulder portion 3 continuous with the spout portion 2, a body portion 4 continuous with the shoulder portion 3, and a bottom portion 11 continuous with the body portion 4 and located at the lowermost portion.
  • the bottle 1 relating to the instant embodiment is a cylindrical container having an approximately circular horizontal cross section.
  • the bottle 1 can be made of thermoplastic resin such as polyethylene, polypropylene, polyethylene terephthalate, etc. as its principal material, via a conventional molding method such as the biaxial stretching blow molding technique.
  • the content (liquid) to be charged in the bottle 1 is not particularly limited.
  • drinks such as drinking water, tea, juice, coffee, cocoa, soft drink, alcoholic drink, milk-based drink, soup, liquid seasoning such as sauce, soy sauce, etc. can be cited.
  • the content volume of the bottle 1 is also not particularly limited. Depending on the kind of content to be charged therein, it can be appropriately set from a relatively small volume in the order of a few hundreds of milliliters, to a relatively large volume in the order to a few liters.
  • the spout portion 2 is a part which is formed of a cylinder having an opened upper end and serves as an inlet for the content.
  • male threads are formed in the outer circumferential face of the spout portion 2. So that, an unillustrated cap may be adapted to be detachably fixedly threaded thereto, thus allowing repeated sealing and opening.
  • the shoulder portion 3 is a part which is provided with an approximately conical shape whose diameter progressively increases from its upper end to the lower side thereof.
  • the body portion 4 continuously decreases in its diameter from its upper end to the lower side and then continuously increases in its diameter from a position approximately at the vertical half of the body portion 4 to be continuous with a bottom portion 11.
  • the vertical cross sectional shape of the body portion 4 in the instant embodiment is constituted of continuation of two arcs having different curvature radii from each other.
  • the curvature radius of the arc of the approximately upper half portion of the body portion 4 is set smaller than the curvature radius of the arc of the approximately lower half portion of the body portion 4.
  • the curvature radius of the arc of the approximately upper half portion of the body portion 4 can be e.g. 600 mm (600R) and the curvature radius of the arc of the approximately lower half portion of the body portion 4 can be 1052 mm (1052R), for instance.
  • the body portion 4 there are provided, in the form of recesses, a plurality of depressurization absorbing portions 5 by a predetermined spacing in the circumferential direction.
  • the depressurization absorbing portions 5 in the instant embodiment are provided in the form of recesses distributed in both the upper half portion and the lower half portion of the body portion 4.
  • the tapered regions 6 are provided at the upper half portion of the body portion 4.
  • the depressurization absorbing portion 5 is comprised of a tapered region 6, a constant region 7 having a constant width having a lateral width equal to the maximum lateral width of the tapered region 6 and an enlarged region 8 having a width which progressively increases from the constant region 7, with the tapered region 6, the constant region 7 and the enlarged region 8 being continuous with each other from the upper side in this order.
  • a groove 9 having a V-shaped cross section, and this groove 9, at the upper end of the depressurization absorbing portion 5, is continuous with the lateral face of the body portion 4.
  • the above-described depressurization absorbing portion 5 may be vertically inverted.
  • the tapered region 6, the constant region 7 and the enlarged region 8 will be formed continuous with each other from the lower side in this order; and the groove 9, at the lower end of the depressurization absorbing portion 5, will be formed continuous with the lateral face of the body portion 4.
  • the tapered region 6 will be provided at the lower half portion of the body portion 4.
  • a receded portion 10 which is receded to the inner side of the container.
  • receded portion 10 having a rhombus square pyramid-like shape is formed over and across a part of the constant region 7 and a part of the enlarged region 8.
  • the shape and the disposing position of the receded portion 10 are not limited to the above.
  • a protruding portion which protrudes to the outer side of the container may be formed.
  • protruding portion having a rhombus square pyramid-like shape may be formed over and across a part of the constant region 7 and a part of the enlarged region 8.
  • shape and the disposing position of such protruding portion are not limited to the above.
  • a ratio of an area summing up the respective surface areas of the tapered region 6, the constant region 7 and the enlarged region 8 relative to the total surface area of the bottle 1 can be set to range from 30% to 45% approximately.
  • the vertical cross sectional shape of a connecting portion C between the shoulder portion 3 and the body portion 4 is formed like an arc which protrudes (convex) to the outer side of the container.
  • This connecting portion C has a curvature radius ranging from 1.5 to 5 mm (1.5R to 5R), more preferably from 1.5 to 3.5 mm (1.5R to 3.5R).
  • the shape extending from the lower end portion of the shoulder portion 3 through the connecting portion C to the upper end portion of the body portion 4 is curved to protrude toward the lateral outer side of the container.
  • a circumferential groove 20 which extends along and over the entire circumference.
  • This circumferential groove 20 acts as a reinforcing rib for enhancing reinforcement against a shock or a load applied to the lateral face of the bottle 1.
  • an edge arc 21 protruding to the outer side of the container, a bottom arc 23 protruding to the inner side of the container and an edge arc 22 protruding to the outer side of the container are formed continuous with each other from the upper side in this order.
  • the curvature radii of the edge arcs 21, 22 can be greater than the curvature radius of the bottom arc 23.
  • the curvature radii of the edge arcs 21, 22 can be 2 mm (2R) and the curvature radius of the bottom arc 23 can be 1.5 mm (1.5R).
  • the depth of the circumferential groove 20 can range from 1 to 1.5 mm, for example.
  • the bottom portion 11 is comprised of a lateral wall 12 and a bottom wall 13. At the lower end of the lateral wall 12, there is formed a step 14 which is receded to the inner side along the circumferential direction.
  • the step 14 has a vertical cross sectional shape which is formed of a first curved portion 15 which protrudes to the outer side of the container, a second curved portion 16 which protrudes to the inner side of the container, and a third curved portion 17 which protrudes to the outer side of the container, the first through third curved portions 15, 16, 17 being formed continuous in this order from the upper side.
  • the curvature radius of the second curved portion 16 can be smaller than the curvature radius of the first curved portion 15.
  • the respective curvature radii of the first curved portion 15, the second curved portion 16 and the third curved portion 17 all can be smaller than or equal to 5 mm (5R).
  • the curvature radius of the first curved portion 15 can be 3 mm (3R)
  • the curvature radius of the second curved portion 16 can be 1.5 mm (1.5R)
  • the curvature radius of the third curved portion 17 can be 2 mm (2R).
  • the height of the step 14 can be smaller than or equal to 4 mm.
  • the vertical cross sectional shape of the step 14 is not limited to the above.
  • a straight portion(s) may be provided between the first curved portion 15 and the second curved portion 16 and/or between the second curved portion 16 and the third curved portion 17, a straight portion(s) may be provided.
  • the bottom wall 13 of the bottom portion 11 is comprised of a receded portion 18 which is receded to the inner side of the container and a bottom face 19 which comes into contact with a disposing surface when the bottle 1 is placed vertically thereon.
  • the vertical cross sectional shape of the receded portion 18 is a round-dome shape which is receded in the form of step.
  • the bottom face 19 has a ring shape as seen in a plan view and is disposed in the outer circumference of the receded portion 18.
  • a diameter decrease ratio of a maximum outer diameter T2 of the bottom face 19 relative to the maximum outer diameter T1 of the lateral wall 12 of the bottom portion 11 can range from 60% to 90%.
  • the shape extending from the lower end portion of the shoulder portion 3 across the connecting portion C to the upper end of the body portion 4 can be a shape which has a greater degree of protrusion to the lateral outer side of the container, as shown in Fig. 6 , for instance.
  • an arc 24 protruding to the inner side of the container is formed at the upper end portion of the body portion 4 and this arc 24 is continuous with the connecting portion C.
  • the curvature radius of the arc 24 is greater than the curvature radius of the connecting portion C and can range from 10 to 20 mm (10R to 20R), for instance.
  • the resin made container of the present invention can be used as a container in which beverage, seasoning, etc. is charged in a sealed state.

Landscapes

  • 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)
  • Packages (AREA)
EP17887639.7A 2016-12-27 2017-12-25 Contenant en résine Withdrawn EP3564141A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016253511A JP2018104047A (ja) 2016-12-27 2016-12-27 樹脂製容器
PCT/JP2017/046374 WO2018123941A1 (fr) 2016-12-27 2017-12-25 Contenant en résine

Publications (2)

Publication Number Publication Date
EP3564141A1 true EP3564141A1 (fr) 2019-11-06
EP3564141A4 EP3564141A4 (fr) 2020-09-02

Family

ID=62707654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17887639.7A Withdrawn EP3564141A4 (fr) 2016-12-27 2017-12-25 Contenant en résine

Country Status (7)

Country Link
US (1) US20190337661A1 (fr)
EP (1) EP3564141A4 (fr)
JP (1) JP2018104047A (fr)
CN (1) CN110114275A (fr)
PH (1) PH12019501402A1 (fr)
TW (1) TW201829256A (fr)
WO (1) WO2018123941A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230092594A1 (en) * 2021-09-22 2023-03-23 Trek Bicycle Corporation Insulated bottle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179488A (en) * 1976-03-31 1979-12-18 Yoshino Kogyosho Co., Ltd. Method of making a frosted bottle of saturated polyester
JPS5648946A (en) * 1979-09-26 1981-05-02 Kishimoto Akira Pressure resisting plastic vessel* shock resistance thereof is improved
CA2038817C (fr) * 1990-04-06 1997-04-22 Gary Arthur Baldwin Contenant a boisson, a resistance anti-gouttes amelioree
JP2003191928A (ja) * 2001-12-28 2003-07-09 Yoshino Kogyosho Co Ltd 合成樹脂製壜体容器
JP4080212B2 (ja) * 2002-01-31 2008-04-23 株式会社吉野工業所 合成樹脂製の薄肉ボトル容器
JP4846468B2 (ja) 2006-06-30 2011-12-28 株式会社吉野工業所 合成樹脂製ボトル
EP2662297B1 (fr) * 2008-11-27 2015-09-23 Yoshino Kogyosho Co., Ltd. Bouteille en résine synthétique
JP5472792B2 (ja) * 2009-04-30 2014-04-16 株式会社吉野工業所 合成樹脂製壜体
CA2766426A1 (fr) * 2009-05-05 2010-11-11 Amcor Rigid Plastics Usa, Inc. Bouteille plastique sans panneau pour embouteillage a chaud

Also Published As

Publication number Publication date
US20190337661A1 (en) 2019-11-07
EP3564141A4 (fr) 2020-09-02
TW201829256A (zh) 2018-08-16
JP2018104047A (ja) 2018-07-05
PH12019501402A1 (en) 2019-11-11
WO2018123941A1 (fr) 2018-07-05
CN110114275A (zh) 2019-08-09

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