WO2010143685A1 - Opening device and manufacturing method therefor - Google Patents

Opening device and manufacturing method therefor Download PDF

Info

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
French (fr)
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/en

Links

Images

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

Provided is an opening device with a pull ring, wherein it is easy to insert a fingertip into the pull ring, and the pull ring is not damaged or the like during injection molding. The opening device with a pull ring comprises a spout section attached to an outlet on a container for a liquid, and a cap attached so as to cover an upper opening of the spout section. The opening device has: a sealing panel that seals the outlet and is provided at the bottom of the inside of an outlet tube in the spout section; a circular thin weakened line formed at the location where the sealing panel is intended to open; a support that is provided so as to project upwards from the inside vicinity of the circular thin weakened line; and a pull ring that is connected to the upper end of the support and is used during opening to tear the weakened line. The pull ring comprises: a lower-half ring section that has the shape of a circular arc and stretches diagonally upwards from the upper end of the support; an upper-half ring section that contracts diagonally upwards from the upper end of the lower-half ring section, in a direction opposite to the direction the lower-half ring section stretches in; and a bend section that connects the lower-half ring section and the upper-half ring section.

Description

開封装置及びその製造方法Unsealing device and manufacturing method thereof
本発明は、液体容器用開封装置及びその製造方法に関し、液体容器の注出位置に設けられ、スパウト部とそのスパウト部に装着するキャップと、スパウト部内に開封容易にするプルリングとを備えるプルリング付開封装置及びその製造方法に関する。 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.
飲料等液体食品に使用される液体用容器には、消費者の使い易さを考慮して、例えば、紙容器の頂部面若しくは上部傾斜面に、スパウト部とキャップとからなる開封装置を突設した液体用紙容器が、広く使用されている。
この開封装置は、例えば、図３及び図４に示すように、容器１の開封装置取付孔２（注出口）から突出するスパウト部３の注出筒４にキャップ２０を螺着した装置である。 In consideration of consumer convenience, liquid containers used for liquid foods such as beverages, for example, 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.
For example, as shown in FIGS. 3 and 4, 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. .
また、流通時の密封性やバージン性を確保し、または、使用時の易開封性を備えるために、スパウト部３の注出筒４の内側の下方内面に封鎖板５を設けて封止し、使用時に開口するため、この封鎖板５の所定位置の下面に垂直断面形状が逆Ｖ字状の環状切込み６を設けて、上面の開口予定位置に環状薄肉脆弱線６を形成し、この環状薄肉脆弱線６の内側近傍の上面の一側に、先端にプルリング７をもつ支柱８を立設した装置がある。更に、スパウト部３の底部には、容器内側に挿入されるフランジ部９が設けられる。
この図示する態様以外に、スパウト部の底部に、容器外側に外付けされるフランジ部が設けられる開封装置もある。 Moreover, in order to ensure the sealing property and virgin property at the time of distribution, or to provide easy opening at the time of use, the sealing plate 5 is provided and sealed on the lower inner surface of the spout part 3 on the inner side. In order to open during use, 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. There is a device in which 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. Furthermore, a flange portion 9 to be inserted inside the container is provided at the bottom of the spout portion 3.
In addition to the illustrated embodiment, there is also an opening device in which a flange portion that is externally attached to the outside of the container is provided at the bottom portion of the spout portion.
開封装置を開口し、容器から液体を注ぎ出すために、キャップ２０を取り外し、スパウト部３の注出筒４の内側に収容されているプルリング７に指先で引っ掛けて上方へ引っ張って、封鎖板５の環状薄肉脆弱線６を引き裂いて開口している。また、開口したスパウト部３は、使用後、キャップ２０を注出筒４に螺着させて再封止される。
特開２００７ー８４０７８号公報 In order to open the opening device and pour out the liquid from the container, the cap 20 is removed, the finger ring is hooked on the pull ring 7 accommodated inside the spout cylinder 4 of the spout part 3 and pulled upward, and the sealing plate 5 Are opened by tearing the annular thin fragile wire 6. The opened spout 3 is resealed after use by screwing the cap 20 onto the extraction tube 4.
JP 2007-84078 A
上述したプルリング付開封装置は、プラスチック成型により製造される。キャップ２０とスパウト部３とは、別々に成型され、スパウト部３をインジェクション成型（射出成型）する場合、射出成形装置を準備する。
この成形装置は、例えば、固定金型、可動金型、第１コア及び第２コアからなる。固定金型と可動金型との組合せによりスパウト部の外底部用のキャビティーを形成し、固定金型と第１コア及び第２コアとの組合せによりスパウト部の内底部用のキャビティーを形成し、可動金型と第１コアとの組合せによりスパウト部の注出筒用のキャビティーを形成し、第１コアと第２コアとの組合せ、第１コアの内周面に溝を刻設してプルリング用及び支柱用のキャビティーを形成する。 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. Then, 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. Thus, a cavity for the pull ring and the column is formed.
しかしながら、キャビティーに樹脂を射出して第２コアを引き抜いた後、第１コアを引き抜くときに、第１コアの内周面を周回するように刻設した溝にプルリング７が形成されているので、第１コアに引き連れらてプルリング７全体も引きつれられる。そのために、プルリング７が破損、破断、ストレス残存などの問題が生じる恐れがある。
また、スパウト部の注出筒の内側に収容されているプルリングの内径が小さくなり、開封するため指先をプルリングに差し入れたときに、指先をプルリングに差し入れ難いことがある。 However, after injecting the resin into the cavity and pulling out the second core, when pulling out the first core, 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.
In addition, 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.
本発明は、指先をプルリングに差し入れ易く、また、射出成形時のプルリングへの破損等がないプルリング付開封装置を提供することを目的とする。 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.
本発明のプルリング付開封装置は、液体容器の注出口に取り付けられるスパウト部と、このスパウト部の上部開口を覆うように装着されるキャップとからなり、スパウト部の注出筒の内側下方に設けられ注出口を封止する封鎖板、この封鎖板の開口予定位置に形成された環状薄肉脆弱線、この環状薄肉脆弱線の内側近傍位置に上方に立設された支柱及び、この支柱上端に接続され開封時に脆弱線破断のために用いられるプルリングを有する開封装置において、
プルリングは、支柱上端から斜め上方へ広がるように伸張する円弧状の下半環状部と、下半環状部の上端から伸張方向を反転して斜め上方に狭まるように縮む上半環状部と、上半環状部と下半環状部とを連結する屈曲部とからなる、
ことを特徴とする。 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. A sealing plate that seals the spout, an annular thin line of weakness formed at the planned opening position of the sealing plate, a support column that is erected upward in the vicinity of the inside of the annular thin line of weakness line, and an upper end of the support column In the opening device having a pull ring used for breakage of the weak line at the time of opening,
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.
本発明の開封装置の製造方法は、液体容器の注出口に取り付けられるスパウト部と、このスパウト部の上部開口を覆うように装着されるキャップとからなり、スパウト部の注出筒の内側下方に設けられ注出口を封止する封鎖板、この封鎖板の開口予定位置に形成された環状薄肉脆弱線、この環状薄肉脆弱線の内側近傍位置に上方に立設された支柱及び、この支柱上端に接続され開封時に脆弱線破断のために用いられるプルリングを有し、
プルリングは、支柱上端から斜め上方へ広がるように伸張する円弧状の下半環状部と、下半環状部の上端から伸張方向を反転して斜め上方に狭まるように縮む上半環状部と、上半環状部と下半環状部とを連結する屈曲部とからなる、
開封装置を製造する方法であって、
固定金型、可動金型、第１コア及び第２コアからなり、固定金型と可動金型との組合せによりスパウト部の外底部用のキャビティーを形成し、固定金型と第１コア及び第２コアとの組合せによりスパウト部の内底部用のキャビティーを形成し、可動金型と第１コアとの組合せによりスパウト部の注出筒用のキャビティーを形成し、第１コアと第２コアとの組合せ、第１コアの内周面に溝を刻設してプルリング用及び支柱用のキャビティーを形成する成形装置を準備し、
上記キャビティー全てに溶融樹脂を射出して開封装置を成型し、
成型された開封装置を変形させることなく、成形装置から第２コアを引き抜き、
成型されたプルリング及び支柱を内側一方に変形させて、成形装置から第１コアを引き抜き、
固定金型から可動金型を引き離して開封装置を得る、
ことを特徴とする。 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 movable mold, a first core, and a second core, and a cavity for the outer bottom portion of the spout portion is formed by a combination of the fixed mold and the movable mold. 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. In combination with two cores, 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.
以上の本発明によれば、以下の作用機能を発揮し、有利な効果が得られる。
本発明のプルリング付開封装置は、液体容器の注出口に取り付けられるスパウト部と、このスパウト部の上部開口を覆うように装着されるキャップとからなる。
スパウト部の上部開口から、キャップを外すことができ、スパウト部から液体容器の注出口によって、液体食品を注ぎ出すことができる。 According to the present invention described above, the following functions are exhibited and advantageous effects are obtained.
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.
スパウト部の注出筒の内側下方に設けられた封鎖板が、注出口を封止する。液体容器が製造された後の流通過程で容器の内容物を保護し保存することができる。
この封鎖板の開口予定位置に環状薄肉脆弱線が形成される。物理的に弱いので容易に予定位置に開口することができると共に、脆弱部分はスパウト部の注出筒の内部に位置してスパウト部によって物理的に保護される。
この環状薄肉脆弱線の内側近傍位置に上方に支柱が立設され、この支柱上端にプルリングが接続されている。開封時にプルリングを引っ張ることにより、脆弱線に沿って破断し、開封して開口する。 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.
本発明のプルリング付開封装置の特徴では、プルリングは、支柱上端から斜め上方へ広がるように伸張する円弧状の下半環状部と、下半環状部の上端から伸張方向を反転して斜め上方に狭まるように縮む上半環状部と、上半環状部と下半環状部とを連結する屈曲部とからなる。
この発明において、プルリングが、支柱上端から斜め上方へ広がるように一旦伸張するが、半ばで、反転して斜め上方に狭まるように縮むので、スパウト部内部全体を占めるのではなく、概ね半分である。 In the characteristics of the opening device with a pull ring according to the present invention, 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.
In this invention, 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. .
そのため、スパウト部の注出筒の内側に収容されているプルリングが邪魔にならず、開封するため指先をスパウト部の注出筒の内側に差し入れ易くなる。差し入れた指先はプルリングの上半環状部を容易に引っ掛けることができ、更に上半環状部を引き上げることによって、上半環状部と下半環状部とを連結する屈曲部で、広角に広がりプルリングのリングが広がって上半環状部がスパウト部の注出筒から上方に出て指先の関節部分まで深くリングに差し入れることができ、開封のために確実に力を入れることが可能になる。 Therefore, 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.
本発明の開封装置の製造方法では、固定金型、可動金型、第１コア及び第２コアからなり、固定金型と可動金型との組合せによりスパウト部の外底部用のキャビティーを形成し、固定金型と第１コア及び第２コアとの組合せによりスパウト部の内底部用のキャビティーを形成し、可動金型と第１コアとの組合せによりスパウト部の注出筒用のキャビティーを形成し、第１コアと第２コアとの組合せ、第１コアの内周面に溝を刻設してプルリング用及び支柱用のキャビティーを形成する成形装置を準備する。
この成形装置によって、開封装置のスパウト部の各部材に必要なキャビティーが形成される。 In the manufacturing method of the opening device of the present invention, 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.
With this molding device, cavities necessary for each member of the spout portion of the opening device are formed.
この成形装置によって形成された、開封装置のスパウト部の各部材に必要なキャビティー全てに、溶融樹脂を射出して開封装置が形成される。次いで、成型された開封装置を変形させることなく、成形装置から第２コアを引き抜く。 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.
成型されたプルリング及び支柱を内側一方に変形させて、成形装置から第１コアを引き抜く。
この発明において、プルリングが、支柱上端から斜め上方へ広がるように一旦伸張するが、半ばで、反転して斜め上方に狭まるように縮むので、第１コア内周全体を占めるのではなく、概ね半分である。
第１コアを引き抜くときに、第１コアに引き連れらてもプルリングが内側一方に変形することによって、成形装置から第１コアを容易に引き抜くことができる。
次いで、固定金型から可動金型を引き離して開封装置を得ることができる。
上述のように、射出成形時のプルリングへの破損等がないプルリング付開封装置を提供することができる。 The formed pull ring and support column are deformed to the inner side, and the first core is pulled out from the molding apparatus.
In this invention, 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.
When pulling out the first core, 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.
Subsequently, the movable mold can be pulled away from the fixed mold to obtain the opening device.
As described above, it is possible to provide a pull-ring opening device that does not damage the pull ring during injection molding.
この発明によるプルリング付開封装置のスパウト部の一例を説明する断面正面図である。It is a section front view explaining an example of the spout part of the opening device with a pull ring by this invention. この発明による開封装置の製造方法を説明する成形装置の一例を示す概略断面図である。It is a schematic sectional drawing which shows an example of the shaping | molding apparatus explaining the manufacturing method of the opening apparatus by this invention. 従来のプルリング付開封装置の一例を説明する断面正面図である。It is a sectional front view explaining an example of the conventional opening device with a pull ring. 容器にプルリング付開封装置の一例が設けられた概要を示す斜視図である。It is a perspective view which shows the outline | summary in which an example of the opening device with a pull ring was provided in the container. この発明による開封装置例と従来の開封装置例とのスパウトの挿入領域を対比する平面図である。It is a top view which contrasts the insertion area | region of the spout of the example of an opening device by this invention, and the example of the conventional opening device. この発明によるプルリング付開封装置の実施例を開封する様子を説明する斜視図である。It is a perspective view explaining a mode that the Example of the opening apparatus with a pull ring by this invention is opened.
１・・・　容器
２・・・　開口（注出口）
３・・・　スパウト部
４・・・　注出筒
５・・・　封鎖板
６・・・　環状薄肉脆弱線
７・・・　プルリングル
８・・・　支柱
１１・・・上半環状部
１２・・・下半環状部
１３・・・屈曲部
１４・・・固定金型
１５・・・可動金型
１６・・・第１コア
１７・・・第２コア
２０・・・キャップ
２５・・・挿入領域 1 ... Container 2 ... Opening (outlet)
DESCRIPTION OF SYMBOLS 3 ... Spout part 4 ... Extraction pipe | tube 5 ... Sealing board 6 ... Annular thin weak line 7 ... Pull ring 8 ... Strut 11 ... Upper semi-annular part 12 ... Bottom Semi-annular part 13 ... bending part 14 ... fixed mold 15 ... movable mold 16 ... first core 17 ... second core 20 ... cap 25 ... insertion region
以下、本発明の実施の形態について図面を参照しながら詳細に説明する。
図４に示すように、この実施例のプルリング付開封装置１０は、液体容器１の注出口２に取り付けられるスパウト部３と、このスパウト部３の上部開口を覆うように装着されるキャップ２０とからなる。
使用開封時には、スパウト部３の上部開口から、キャップ２０を外し、スパウト部３から液体食品を注ぎ出す。
図１に示すように、スパウト部３の注出筒４の外側壁には、雄ネジが刻設され、その内側下方には、封鎖板５が設けられている。封鎖板５が注出口を封止する。店舗などの流通過程で容器の内容物を保護し保存する。
封鎖板５の開口予定位置に環状薄肉脆弱線６が形成される。外力に弱いので容易に予定位置に開口し、開封前には脆弱部分６はスパウト部３の注出筒４に保護される。
この環状薄肉脆弱線６の内側近傍位置に上方に支柱８が立設され、この支柱８上端にプルリング７が接続されている。開封時にプルリング７を引っ張ることにより、脆弱線６に沿って破断し、開封して開口する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 4, 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. Protect and preserve the contents of the container during the distribution process in stores.
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.
この実施例では、プルリング７は、支柱８上端から斜め上方へ広がるように伸張する円弧状の下半環状部１２と、下半環状部１２の上端から伸張方向を反転して斜め上方に狭まるように縮む上半環状部１１と、上半環状部１１と下半環状部１２とを連結する屈曲部１３とからなる。
この形態において、プルリング７が、支柱８上端から斜め上方へ広がるように一旦伸張するが、半ばで、反転して斜め上方に狭まるように縮むので、スパウト部３内部全体を占めるのではなく、図１では左側概ね半分である。
図５に示すように、従来例（図５（Ｂ））と比較して、本実施例（図５Ａ）では、挿入領域２５の面積は、指先の挿入域で約４０％も広がり、横方向の幅も約５０％も広くなっている。 In this embodiment, 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.
In this embodiment, 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.
As shown in FIG. 5, 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.
この態様では、スパウト部３の注出筒４の内側に収容されているプルリング７が邪魔にならない。開封するため指先３０をスパウト部の注出筒４の内側に、図１では右半分に差し入れ易くなる。差し入れた指先３０はプルリング７の上半環状部１１を容易に引っ掛けることができる。次いで上半環状部１１を引き上げることによって、図６に示すように、上半環状部１１と下半環状部１２とを連結する屈曲部１３で、広角に広がる。プルリング７のリングが大きくなり上半環状部１１がスパウト部３の注出筒４から上方に出て、使用者の指先の関節部分まで深くリングを差し入れることができ、開封のために確実に力を入れることができる。 In this aspect, 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.
開封装置の製造方法の一実施例を、図２の断面図を参照して、説明する。この態様では、固定金型１４、可動金型１５、第１コア１６及び第２コア１７からなる。固定金型１４と可動金型１５との組合せによりスパウト部の外底部（フランジ、注出筒底部）用のキャビティーを形成する。固定金型１４と第１コア１６及び第２コア１７との組合せによりスパウト部の内底部（注出筒底部、封鎖板など）用のキャビティーを形成する。可動金型１５と第１コア１６との組合せによりスパウト部の注出筒用のキャビティーを形成する。第１コア１６と第２コア１７との組合せ第１コア１６の内周面に溝を刻設することによってプルリング用及び支柱用のキャビティー（１１’及び１２’など）を形成する。先ず、この成形装置を準備し、この成形装置によって、開封装置のスパウト部の各部材に必要なキャビティーが形成される。 An embodiment of the method for manufacturing the opening device will be described with reference to the cross-sectional view of FIG. In this aspect, 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. Combination of 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. First, this shaping | molding apparatus is prepared and a cavity required for each member of the spout part of an opening apparatus is formed with this shaping | molding apparatus.
この成形装置によって形成された、開封装置のスパウト部の各部材に必要なキャビティー全てに、射出口（図示せず）から溶融樹脂を射出して開封装置を成型する。次いで、成型された開封装置を変形させることなく、図２に示す態様では、先ず、成形装置から第２コア１７を引き抜く。 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). Next, in the embodiment shown in FIG. 2, first, the second core 17 is pulled out from the molding device without deforming the molded opening device.
次いで、成型されたプルリング７（１１、１２、１３）及び支柱８を内側一方向に変形させて、成形装置から第１コア１６を引き抜く。
この際、プルリング７が、支柱８上端から斜め上方へ一旦伸張するが、半ばで、反転して斜め上方に狭まるので、第１コア内周全体を占めるのではなく、概ね半分であるので、第１コアを引き抜くときに、第１コアに引き連れらてもプルリングが内側一方に変形することによって、成形装置から第１コアを容易に引き抜く。
次いで、固定金型１４から可動金型１５を引き離して開封装置を得ることができる。 Next, 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.
At this time, 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. When pulling out one core, 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.
Subsequently, the movable mold 15 can be pulled away from the fixed mold 14 to obtain an opening device.
なお、本発明は前記実施の形態に限定されるものではなく、本発明の趣旨に基づいて種々変形させることが可能であり、それらを本発明の範囲から排除するものではない。 In addition, 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.
この発明は、液体容器のための開封装置に適用することができる。 The present invention can be applied to an opening device for a liquid container.

Claims (4)

  1. 液体容器の注出口に取り付けられるスパウト部と、該スパウト部の上部開口を覆うように装着されるキャップとからなり、該スパウト部の注出筒の内側下方に設けられ注出口を封止する封鎖板、該封鎖板の開口予定位置に形成された環状薄肉脆弱線、該環状薄肉脆弱線の内側近傍位置に上方に立設された支柱及び、該支柱の上端に接続され開封時に該脆弱線の破断のために用いられるプルリングを有する開封装置において、
    該プルリングは、該支柱上端から斜め上方へ広がるように伸張する円弧状の下半環状部と、該下半環状部の上端から伸張方向を反転して斜め上方に狭まるように縮む上半環状部と、該下半環状部と該上半環状部とを連結する屈曲部とからなる、
    ことを特徴とするプルリング付開封装置。     A seal that includes a spout portion that is attached to the spout of the liquid container and a cap that is attached so as to cover the upper opening of the spout, and that is provided below the spout cylinder of the spout and seals the spout A plate, an annular thin line of weakness formed at a planned opening position of the sealing plate, a support column erected upward in the vicinity of the inner side of the annular thin line of weakness line, and a connection between the upper end of the support column and In an opening device with a pull ring used for breaking,
    The pull ring includes an arc-shaped lower half annular portion that extends so as to spread obliquely upward from the upper end of the support column, and an upper half annular portion that reverses the extension direction from the upper end of the lower half annular portion and shrinks so as to narrow obliquely upward. And a bent portion that connects the lower semi-annular portion and the upper semi-annular portion,
    The opening device with a pull ring characterized by the above-mentioned.
  2. 該スパウト部の該注出筒の底部に、該容器内壁面に接着されるフランジ部が設けられる、請求項１記載のプルリング付開封装置。 The opening device with a pull ring according to claim 1, wherein a flange portion bonded to the inner wall surface of the container is provided at a bottom portion of the spout tube of the spout portion.
  3. 該スパウト部の該注出筒の底部に、該容器外壁に接着されるフランジ部が設けられる、請求項１記載のプルリング付開封装置。 The opening device with a pull ring according to claim 1, wherein a flange portion bonded to the outer wall of the container is provided at a bottom portion of the spout tube of the spout portion.
  4. 液体容器の注出口に取り付けられるスパウト部と、該スパウト部の上部開口を覆うように装着されるキャップとからなり、該スパウト部の注出筒の内側下方に設けられ注出口を封止する封鎖板、該封鎖板の開口予定位置に形成された環状薄肉脆弱線、該環状薄肉脆弱線の内側近傍位置に上方に立設された支柱及び、該支柱の上端に接続され開封時に該脆弱線の破断のために用いられるプルリングを有し、
    該プルリングは、該支柱上端から斜め上方へ広がるように伸張する円弧状の下半環状部と、該下半環状部の上端から伸張方向を反転して斜め上方に狭まるように縮む上半環状部と、該下半環状部と該上半環状部とを連結する屈曲部とからなる、
    開封装置を製造する方法であって、
    固定金型、可動金型、第１コア及び第２コアからなり、該固定金型と該可動金型との組合せにより該スパウト部の外底部用のキャビティーを形成し、該固定金型と該第１コア及び該第２コアとの組合せにより該スパウト部の内底部用のキャビティーを形成し、該可動金型と該第１コアとの組合せにより該スパウト部の注出筒用のキャビティーを形成し、該第１コアと該第２コアとの組合せ、該第１コアの内周面に溝を刻設して該プルリング用及び該支柱用のキャビティーを形成する成形装置を準備し、
    上記キャビティーに溶融樹脂を射出して該開封装置を成型し、
    成型された該開封装置を変形させることなく、該成形装置から該第２コアを引き抜き、
    成型された該プルリング及び該支柱を内側一方に変形させて、該成形装置から該第１コアを引き抜き、
    該固定金型から該可動金型を引き離して該開封装置を得る、
    ことを特徴とする開封装置の製造方法。     A seal that includes a spout portion that is attached to the spout of the liquid container and a cap that is attached so as to cover the upper opening of the spout, and that is provided below the spout cylinder of the spout and seals the spout A plate, an annular thin line of weakness formed at a planned opening position of the sealing plate, a support column erected upward in the vicinity of the inner side of the annular thin line of weakness line, and a connection between the upper end of the support column and With a pull ring used for breaking,
    The pull ring includes an arc-shaped lower half annular portion that extends so as to spread obliquely upward from the upper end of the support column, and an upper half annular portion that reverses the extension direction from the upper end of the lower half annular portion and shrinks so as to narrow obliquely upward. And a bent portion that connects the lower semi-annular portion and the upper semi-annular portion,
    A method of manufacturing an opening device,
    A fixed mold, a movable mold, a first core and a second core, and a cavity for the outer bottom portion of the spout portion is formed by a combination of the fixed mold and the movable mold; A cavity for the inner bottom portion of the spout portion is formed by a combination of the first core and the second core, and a mold for a spout cylinder of the spout portion is formed by a combination of the movable mold and the first core. Preparing a molding device for forming a tee, combining the first core and the second core, and forming a groove for the pull ring and the support column by forming a groove on the inner peripheral surface of the first core And
    Injecting molten resin into the cavity to mold the opening device,
    Without deforming the molded opening device, pulling out the second core from the molding device,
    The molded pull ring and the support column are deformed inwardly, and the first core is pulled out from the molding device,
    Pulling the movable mold away from the fixed mold to obtain the opening device;
    The manufacturing method of the opening apparatus characterized by the above-mentioned.
PCT/JP2010/059836 2009-06-13 2010-06-10 Opening device and manufacturing method therefor WO2010143685A1 (en)

Applications Claiming Priority (2)

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

Publications (1)

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

Family

ID=43308940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/059836 WO2010143685A1 (en) 2009-06-13 2010-06-10 Opening device and manufacturing method therefor

Country Status (2)

Country Link
JP (1) JP2011016587A (en)
WO (1) WO2010143685A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015117214A1 (en) * 2014-02-04 2015-08-13 Franco Da Encarnação Fernando Antônio Expansible mouthpiece for disposable beverage container, disposable beverage container, method for producing expansible mouthpiece and method for mounting the expansible mouthpiece on a beverage container
JP7039069B1 (en) * 2020-11-26 2022-03-22 扶桑産業株式会社 Pull ring and bottle cap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180034450A (en) * 2015-08-03 2018-04-04 가부시키가이샤 코세 Sealing structure of the vessel main outlet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0939034A (en) * 1995-07-25 1997-02-10 Toppan Printing Co Ltd Injection molding die
JPH09301391A (en) * 1996-05-14 1997-11-25 Masaharu Kobayashi Tap having flexible pull for unsealing
JP2003104420A (en) * 2001-09-28 2003-04-09 Japan Crown Cork Co Ltd Container lid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0939034A (en) * 1995-07-25 1997-02-10 Toppan Printing Co Ltd Injection molding die
JPH09301391A (en) * 1996-05-14 1997-11-25 Masaharu Kobayashi Tap having flexible pull for unsealing
JP2003104420A (en) * 2001-09-28 2003-04-09 Japan Crown Cork Co Ltd Container lid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015117214A1 (en) * 2014-02-04 2015-08-13 Franco Da Encarnação Fernando Antônio Expansible mouthpiece for disposable beverage container, disposable beverage container, method for producing expansible mouthpiece and method for mounting the expansible mouthpiece on a beverage container
JP7039069B1 (en) * 2020-11-26 2022-03-22 扶桑産業株式会社 Pull ring and bottle cap

Also Published As

Publication number Publication date
JP2011016587A (en) 2011-01-27

Similar Documents

Publication Publication Date Title
JP5645213B2 (en) Hinge cap
US8453889B2 (en) Spout cap having two steps type straw part
WO2010143685A1 (en) Opening device and manufacturing method therefor
JP2012121624A (en) Hinge cap with separation disposal function, and method for manufacturing thereof
JP5049823B2 (en) cap
JP2009508778A (en) Cap for neck of container, container with plug, and method of assembling the plug
JP2007223668A (en) Pouring spout
JP5125249B2 (en) Plug body with virgin function
JP5421653B2 (en) Pouring tool
JP2008074428A (en) One-piece stopper
JP4884940B2 (en) Refill container
JP2007084079A (en) Mouth stopper with pull-ring
JP4949004B2 (en) Cap with pilfer proof band
JP6327458B2 (en) Two-material hinge cap
JP7382631B2 (en) cap
JP4525085B2 (en) Tamper-proof overcap
JP6226237B2 (en) Synthetic resin molded product and molding method thereof
JP2007084078A (en) Mouth stopper with pull-ring
JP4736542B2 (en) Pull ring type spout tool
JP2006219167A (en) Plastic cap to prevent splash upon opening
JP5154293B2 (en) Spout
JP7246831B2 (en) pouring cap
JP2024025150A (en) Opening structure and packaging container using the same
EP3199469B1 (en) Plugging device
JP2004268962A (en) One piece plug for spout

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10786216

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10786216

Country of ref document: EP

Kind code of ref document: A1