WO2010143685A1 - Dispositif d'ouverture et procédé de fabrication associé - Google Patents

Dispositif d'ouverture et procédé de fabrication associé Download PDF

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Publication number
WO2010143685A1
WO2010143685A1 PCT/JP2010/059836 JP2010059836W WO2010143685A1 WO 2010143685 A1 WO2010143685 A1 WO 2010143685A1 JP 2010059836 W JP2010059836 W JP 2010059836W WO 2010143685 A1 WO2010143685 A1 WO 2010143685A1
Authority
WO
WIPO (PCT)
Prior art keywords
spout
pull ring
core
opening device
opening
Prior art date
Application number
PCT/JP2010/059836
Other languages
English (en)
Japanese (ja)
Inventor
正道 金子
Original Assignee
テトラ ラバル ホールディングス アンド ファイナンス エス エイ
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 テトラ ラバル ホールディングス アンド ファイナンス エス エイ filed Critical テトラ ラバル ホールディングス アンド ファイナンス エス エイ
Publication of WO2010143685A1 publication Critical patent/WO2010143685A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0081—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of objects with parts connected by a thin section, e.g. hinge, tear line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/103—Membranes with a tearing element
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers

Definitions

  • the present invention relates to an opening device for a liquid container and a method for manufacturing the same, and is provided with a pull ring provided at a pouring position of the liquid container and including a spout part, a cap attached to the spout part, and a pull ring that facilitates opening in the spout part
  • the present invention relates to an opening device and a manufacturing method thereof.
  • liquid containers used for liquid foods such as beverages are provided with an opening device comprising a spout part and a cap on the top surface or upper inclined surface of a paper container.
  • Liquid paper containers are widely used.
  • this unsealing apparatus is an apparatus in which a cap 20 is screwed onto a dispensing tube 4 of a spout portion 3 protruding from an unsealing device mounting hole 2 (a spout) of a container 1. .
  • the sealing plate 5 is provided and sealed on the lower inner surface of the spout part 3 on the inner side.
  • an annular cut 6 having a reverse V-shaped vertical cross-section is provided on the lower surface of the sealing plate 5 at a predetermined position, and an annular thin fragile wire 6 is formed at a predetermined opening position on the upper surface.
  • a support column 8 having a pull ring 7 at its tip is erected on one side of the upper surface in the vicinity of the inside of the thin fragile wire 6.
  • a flange portion 9 to be inserted inside the container is provided at the bottom of the spout portion 3.
  • the opening device with a pull ring mentioned above is manufactured by plastic molding.
  • the cap 20 and the spout part 3 are separately molded, and when the spout part 3 is injection-molded (injection molding), an injection molding apparatus is prepared.
  • the molding apparatus includes, for example, a fixed mold, a movable mold, a first core, and a second core.
  • a cavity for the outer bottom part of the spout part is formed by a combination of the fixed mold and the movable mold, and a cavity for the inner bottom part of the spout part is formed by a combination of the fixed mold and the first core and the second core.
  • a cavity for the spout tube of the spout part is formed by the combination of the movable mold and the first core, and the groove is engraved on the inner peripheral surface of the first core and the combination of the first core and the second core.
  • a cavity for the pull ring and the column is formed.
  • the pull ring 7 is formed in a groove formed so as to go around the inner peripheral surface of the first core. Therefore, the pull ring 7 as a whole is pulled with the first core. For this reason, there is a risk that the pull ring 7 may be damaged, broken, or has residual stress.
  • the inner diameter of the pull ring housed inside the spout tube of the spout portion becomes small, and it may be difficult to insert the fingertip into the pull ring when the fingertip is inserted into the pull ring for opening.
  • An object of the present invention is to provide an unsealing device with a pull ring in which a fingertip can be easily inserted into a pull ring and the pull ring is not damaged during injection molding.
  • the opening device with a pull ring of the present invention comprises a spout portion attached to a spout of a liquid container and a cap attached so as to cover the upper opening of the spout portion, and is provided below the spout tube of the spout portion.
  • the pull ring has an arcuate lower half annular portion extending so as to spread obliquely upward from the upper end of the support column, an upper half annular portion that reverses the extension direction from the upper end of the lower half annular portion, and contracts so as to narrow obliquely upward, It consists of a bent part that connects the semi-annular part and the lower semi-annular part, It is characterized by that.
  • the manufacturing method of the opening device of the present invention comprises a spout part attached to the spout of the liquid container and a cap attached so as to cover the upper opening of the spout part.
  • a sealing plate that is provided and seals the spout, an annular thin line of weakness formed at the planned opening position of the sealing plate, a column that is erected upward in the vicinity of the inside of the annular thin line of weakness, and an upper end of the column Has a pull ring that is connected and used to break the line of weakness when opened;
  • the pull ring has an arcuate lower half annular portion extending so as to spread obliquely upward from the upper end of the support column, an upper half annular portion that reverses the extension direction from the upper end of the lower half annular portion, and contracts so as to narrow obliquely upward, It consists of a bent part that connects the semi-annular part and the lower semi-annular part, A method of manufacturing an opening device, A fixed mold, a mov
  • a cavity for the inner bottom part of the spout part is formed by the combination with the second core, and a cavity for the spout cylinder of the spout part is formed by the combination of the movable mold and the first core.
  • a molding device is prepared for forming a cavity for a pull ring and a column by engraving grooves on the inner peripheral surface of the first core, Injecting molten resin into all the cavities to mold the opening device, Without deforming the molded opening device, pull out the second core from the molding device, Deform the molded pull ring and strut to the inside, pull out the first core from the molding device, Pull the movable mold away from the fixed mold to get the opening device, It is characterized by that.
  • the opening device with a pull ring of the present invention includes a spout portion attached to a spout of a liquid container and a cap that is attached so as to cover an upper opening of the spout portion.
  • the cap can be removed from the upper opening of the spout part, and the liquid food can be poured out from the spout part by the spout of the liquid container.
  • a blocking plate provided inside and below the spout cylinder of the spout portion seals the spout.
  • the contents of the container can be protected and stored in the distribution process after the liquid container is manufactured.
  • An annular thin line of weakness is formed at the planned opening position of the sealing plate. Since it is physically weak, it can be easily opened to a predetermined position, and the weak part is located inside the spout tube of the spout part and is physically protected by the spout part.
  • a support column is erected upward at a position in the vicinity of the inside of the thin annular weak line, and a pull ring is connected to the upper end of the support column. By pulling the pull ring at the time of opening, it breaks along the line of weakness, opens and opens.
  • the pull ring has an arc-shaped lower half annular portion extending so as to spread obliquely upward from the upper end of the support column, and an extension direction is reversed obliquely upward from the upper end of the lower half annular portion. It consists of an upper semi-annular part that shrinks so as to narrow, and a bent part that connects the upper semi-annular part and the lower semi-annular part.
  • the pull ring is once stretched so as to spread obliquely upward from the upper end of the column, but in the middle, it reverses and shrinks so as to narrow obliquely upward, so it does not occupy the entire inside of the spout part but is approximately half. .
  • the pull ring accommodated inside the spout tube of the spout part does not get in the way, and it is easy to insert the fingertip into the spout part of the spout part for opening.
  • the inserted fingertip can easily hook the upper half-annular part of the pull ring, and further, by pulling up the upper half-annular part, the bent part connecting the upper half-annular part and the lower half-annular part spreads over a wide angle and The ring expands so that the upper semi-annular portion can protrude upward from the spout tube of the spout portion and be inserted deeply into the joint portion of the fingertip, and a force can be reliably applied for opening.
  • a cavity for the outer bottom portion of the spout portion is formed by a combination of a fixed die and a movable die, which is composed of a fixed die, a movable die, a first core and a second core. Then, a cavity for the inner bottom portion of the spout portion is formed by a combination of the fixed mold and the first core and the second core, and a cavity for the spout cylinder of the spout portion is formed by a combination of the movable mold and the first core.
  • a tee is formed, a combination of the first core and the second core, and a molding apparatus is prepared for forming a cavity for a pull ring and a column by engraving a groove on the inner peripheral surface of the first core.
  • a molding apparatus is prepared for forming a cavity for a pull ring and a column by engraving a groove on the inner peripheral surface of the first core.
  • the opening device is formed by injecting molten resin into all the cavities necessary for each member of the spout portion of the opening device formed by this molding device. Next, the second core is pulled out from the molding device without deforming the molded opening device.
  • the formed pull ring and support column are deformed to the inner side, and the first core is pulled out from the molding apparatus.
  • the pull ring is once extended so as to spread obliquely upward from the upper end of the support column, but in the middle, it reverses and shrinks so as to narrow diagonally upward, so that it does not occupy the entire inner periphery of the first core, but approximately half. It is.
  • the pull ring is deformed to the inner side even if the first core is pulled, whereby the first core can be easily pulled out from the molding apparatus.
  • the movable mold can be pulled away from the fixed mold to obtain the opening device.
  • the unsealing device 10 with a pull ring of this embodiment includes a spout portion 3 attached to the spout 2 of the liquid container 1, and a cap 20 attached to cover the upper opening of the spout portion 3. Consists of. At the time of use opening, the cap 20 is removed from the upper opening of the spout part 3, and the liquid food is poured out from the spout part 3. As shown in FIG. 1, a male screw is engraved on the outer wall of the dispensing cylinder 4 of the spout part 3, and a blocking plate 5 is provided on the inner lower side thereof. A blocking plate 5 seals the spout.
  • An annular thin line of weakness 6 is formed at the planned opening position of the blocking plate 5. Since it is weak against external force, it is easily opened at a predetermined position, and the fragile portion 6 is protected by the dispensing tube 4 of the spout portion 3 before opening.
  • a support column 8 is erected upward at a position in the vicinity of the inside of the annular thin weak wire 6, and a pull ring 7 is connected to the upper end of the support column 8. By pulling the pull ring 7 at the time of opening, it breaks along the line of weakness 6, opens and opens.
  • the pull ring 7 has an arcuate lower half annular portion 12 extending so as to spread obliquely upward from the upper end of the support column 8, and an extending direction is reversed obliquely upward from the upper end of the lower half annular portion 12.
  • the upper semi-annular part 11 contracted into the upper half-annular part 11 and the bent part 13 connecting the upper semi-annular part 11 and the lower semi-annular part 12.
  • the pull ring 7 is once stretched so as to spread obliquely upward from the upper end of the support column 8, but in the middle, it reverses and shrinks so as to narrow obliquely upward. 1 is approximately half on the left side.
  • FIG. 5A compared with the conventional example (FIG. 5B), in this embodiment (FIG. 5A), the area of the insertion region 25 is expanded by about 40% in the insertion region of the fingertips. Is about 50% wider.
  • the pull ring 7 accommodated inside the dispensing cylinder 4 of the spout part 3 does not get in the way. It is easy to insert the fingertip 30 into the inside of the spout cylinder 4 of the spout part and to the right half in FIG. The inserted fingertip 30 can easily hook the upper half annular portion 11 of the pull ring 7. Next, by pulling up the upper semi-annular part 11, as shown in FIG. 6, the bent part 13 connecting the upper semi-annular part 11 and the lower semi-annular part 12 spreads over a wide angle.
  • the ring of the pull ring 7 becomes larger, and the upper semi-annular part 11 protrudes upward from the spout cylinder 4 of the spout part 3 and can be inserted deeply into the joint part of the user's fingertip. I can put in force.
  • the fixed mold 14, the movable mold 15, the first core 16, and the second core 17 are included.
  • the combination of the fixed mold 14 and the movable mold 15 forms a cavity for the outer bottom part (flange, extraction cylinder bottom part) of the spout part.
  • the combination of the fixed mold 14 and the first core 16 and the second core 17 forms a cavity for the inner bottom portion of the spout portion (poured cylinder bottom portion, sealing plate, etc.).
  • the combination of the movable mold 15 and the first core 16 forms a cavity for the spout cylinder of the spout part.
  • first core 16 and second core 17 Grooves are formed on the inner peripheral surface of first core 16 to form cavities (11 'and 12', etc.) for pull rings and columns.
  • molding apparatus is prepared and a cavity required for each member of the spout part of an opening apparatus is formed with this shaping
  • the opening device is molded by injecting molten resin into all the cavities necessary for each member of the spout portion of the opening device formed by this molding device from an injection port (not shown).
  • an injection port not shown
  • the second core 17 is pulled out from the molding device without deforming the molded opening device.
  • the molded pull ring 7 (11, 12, 13) and the support column 8 are deformed in one inner direction, and the first core 16 is pulled out from the molding apparatus.
  • the pull ring 7 once extends obliquely upward from the upper end of the support column 8, but in the middle, it is inverted and narrows obliquely upward, so that it does not occupy the entire inner periphery of the first core, but is approximately half.
  • the pull ring is deformed to the inner side even if it is pulled by the first core, so that the first core is easily pulled out from the molding apparatus.
  • the movable mold 15 can be pulled away from the fixed mold 14 to obtain an opening device.
  • this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.
  • the present invention can be applied to an opening device for a liquid container.

Abstract

La présente invention se rapporte à un dispositif d'ouverture pourvu d'un anneau d'arrachage grâce auquel il est facile d'introduire le bout du doigt dans l'anneau d'arrachage, et l'anneau d'arrachage n'est pas endommagé ou autre au cours du moulage par injection. Le dispositif d'ouverture pourvu d'un anneau d'arrachage comprend une section goulotte fixée à une sortie située sur un récipient pour liquide, et un capuchon fixé de manière à recouvrir une ouverture supérieure de la section goulotte. Le dispositif d'ouverture comporte : un panneau de scellage qui scelle la sortie et est disposé au fond de l'intérieur d'un tube de sortie dans la section goulotte; une fine ligne fragilisée circulaire formée à l'endroit où il est prévu que le panneau de scellage s'ouvre; un support qui est disposé de manière à faire saillie vers le haut depuis les environs intérieurs de la fine ligne fragilisée circulaire; et un anneau d'arrachage qui est relié à l'extrémité supérieure du support et est utilisé au cours de l'ouverture pour déchirer la ligne fragilisée. L'anneau d'arrachage comprend : une section anneau de moitié inférieure qui a la forme d'un arc de cercle et s'étire diagonalement vers le haut depuis l'extrémité supérieure du support; une section anneau de moitié supérieure qui se contracte diagonalement vers le haut depuis l'extrémité supérieure de la section anneau de moitié inférieure, dans une direction opposée à la direction dans laquelle s'étire la section anneau de moitié inférieure; et une section coude qui relie la section anneau de moitié inférieure et la section anneau de moitié supérieure.
PCT/JP2010/059836 2009-06-13 2010-06-10 Dispositif d'ouverture et procédé de fabrication associé WO2010143685A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-141728 2009-06-13
JP2009141728 2009-06-13

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Publication Number Publication Date
WO2010143685A1 true WO2010143685A1 (fr) 2010-12-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015117214A1 (fr) * 2014-02-04 2015-08-13 Franco Da Encarnação Fernando Antônio Embout extensible pour récipient à boisson jetable, récipient à boisson jetable, procédé de production d'un embout extensible et procédé de montage d'un récipient à boisson
JP7039069B1 (ja) * 2020-11-26 2022-03-22 扶桑産業株式会社 プルリング及びボトルキャップ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10392168B2 (en) 2015-08-03 2019-08-27 Kose Corporation Container pouring spout sealing structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0939034A (ja) * 1995-07-25 1997-02-10 Toppan Printing Co Ltd 射出成形用金型
JPH09301391A (ja) * 1996-05-14 1997-11-25 Masaharu Kobayashi 屈曲形開封用取手付き口栓
JP2003104420A (ja) * 2001-09-28 2003-04-09 Japan Crown Cork Co Ltd 容器蓋

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0939034A (ja) * 1995-07-25 1997-02-10 Toppan Printing Co Ltd 射出成形用金型
JPH09301391A (ja) * 1996-05-14 1997-11-25 Masaharu Kobayashi 屈曲形開封用取手付き口栓
JP2003104420A (ja) * 2001-09-28 2003-04-09 Japan Crown Cork Co Ltd 容器蓋

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015117214A1 (fr) * 2014-02-04 2015-08-13 Franco Da Encarnação Fernando Antônio Embout extensible pour récipient à boisson jetable, récipient à boisson jetable, procédé de production d'un embout extensible et procédé de montage d'un récipient à boisson
JP7039069B1 (ja) * 2020-11-26 2022-03-22 扶桑産業株式会社 プルリング及びボトルキャップ

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