WO2020179608A1 - Capuchon - Google Patents

Capuchon Download PDF

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Publication number
WO2020179608A1
WO2020179608A1 PCT/JP2020/007990 JP2020007990W WO2020179608A1 WO 2020179608 A1 WO2020179608 A1 WO 2020179608A1 JP 2020007990 W JP2020007990 W JP 2020007990W WO 2020179608 A1 WO2020179608 A1 WO 2020179608A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
female screw
wall
skirt wall
container mouth
Prior art date
Application number
PCT/JP2020/007990
Other languages
English (en)
Japanese (ja)
Inventor
靖文 黒岩
伸生 川村
淳史 小野
慎吾 梅木
Original Assignee
日本山村硝子株式会社
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 日本山村硝子株式会社 filed Critical 日本山村硝子株式会社
Priority to KR1020217029539A priority Critical patent/KR20210126105A/ko
Priority to CN202080013498.9A priority patent/CN113412224B/zh
Publication of WO2020179608A1 publication Critical patent/WO2020179608A1/fr

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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
    • 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
    • B65D41/08—Threaded or like caps or cap-like covers secured by rotation engaging a threaded ring clamped on the external periphery of the neck or wall
    • B65D41/086—Threaded or like caps or cap-like covers secured by rotation engaging a threaded ring clamped on the external periphery of the neck or wall with integral internal sealing means
    • 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
    • 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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0225—Removable lids or covers without integral tamper element secured by rotation

Definitions

  • the present invention relates to, for example, a cap attached to the mouth of a container for accommodating contents such as beverages.
  • the cap 51 detachably attached to the mouth M of the container by screw connection and configured to perform the capping and opening functions of the container mouth M, Widely used in containers for various beverages (Patent Document 1).
  • the engagement range (area) of the female screw 52 of the cap 51 to the male screw M1 of the container mouth M becomes narrower as the cap is opened.
  • the cap 51 will not come off from the container mouth M.
  • the internal pressure of the container increases due to the gas pressure derived from carbon dioxide gas, which pushes up the cap 51 while the male screw M1 and the female screw 52 are engaged.
  • the skirt wall 53 of the cap 51 is expanded to the extent that it can pass over the male screw M1 and the above engagement is disengaged, a phenomenon called blow-off occurs in which the cap pops off.
  • the present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to provide a cap capable of preventing blow-off and overrun.
  • a cap according to the present invention is a cap that is attached to a container opening so as to cover the container opening, and is downward from a ceiling wall and an outer peripheral portion of the ceiling wall.
  • a substantially tubular skirt wall that extends is provided, and the skirt wall is provided with a female screw that is screwed into a male screw formed on the outer periphery of the container mouth portion, and is located below the female screw in the skirt wall.
  • the wall thickness of the portion was made larger than the wall thickness of the upper portion located above the female screw (claim 1).
  • the wall thickness of the portion excluding the female screw may be increased downward (claim 2).
  • a cap capable of preventing blow-off and overrun can be obtained.
  • the skirt wall has that much less than the wall thickness of the lower portion equal to or less than that of the upper portion. It is difficult to expand and deform. Therefore, for example, when the container is filled with carbonated beverages, the internal pressure of the container is increased by the gas pressure derived from carbon dioxide gas, whereby the male screw of the container mouth and the female screw of the cap are engaged. Even if a pushing force is applied to the cap as it is, the skirt wall is difficult to expand the diameter as described above, so it is prevented that the skirt wall expands to the extent that it can pass over the male screw and the engagement is disengaged. It is possible to prevent the occurrence of blow-off.
  • the thickness of the part of the skirt wall where the internal thread is formed is less than or equal to the thickness of the upper part, the diameter increases in this internal thread forming area, and blow-off and overrun occur.
  • the female screw is removed in the region from the upper portion to the lower portion of the skirt wall (the region including the female screw forming region). Since the wall thickness of the portion is increased toward the bottom, it is possible to sufficiently prevent the occurrence of blow-off and overrun.
  • (A) is a bottom view schematically showing a configuration of a cap according to an embodiment of the present invention
  • (B) is a sectional view taken along line AA of (A). It is sectional drawing BB in FIG. 1 (A).
  • (A) is a front view showing a conventional synthetic resin cap
  • (B) is a front view showing a state in which the cap is attached to the container mouth.
  • a synthetic resin cap (hereinafter referred to as a cap) 1 shown in FIGS. 1A and 1B is a container having a male screw M1 and an annular protrusion (an example of an engaged portion) M2 as shown in FIG. 3B.
  • the mouth portion M (for example, the mouth portion of a container such as a PET bottle) is attached and used so as to cover the mouth portion M, and is integrally formed of polyethylene by compression molding or injection molding.
  • the material for forming the cap 1 is not particularly limited, and polypropylene or the like is preferably used in addition to the polyethylene used in the present embodiment.
  • the cap 1 has a substantially circular top wall 2 in a plan view and a substantially cylindrical skirt wall 3 extending downward from the outer peripheral portion of the top wall 2 (see FIGS. 1 (A) and 1 (B)).
  • a knurled groove 4 is provided on the outer peripheral surface of the skirt wall 3
  • a female screw 5 is provided on the inner peripheral surface, and the female screw 5 is formed on the outer periphery of the container mouth portion M. It is possible to connect to the external thread M1 that is formed.
  • the cap 1 is a pill fur-proof cap having a function of certifying that it has not been opened (that the cap has never been opened).
  • the cap 1 When the unopened cap 1 attached to the container mouth M is opened (first When the cap 1 is rotated so that the connection between the male screw M1 and the female screw 5 is released (when the cap is opened), the cap 1 separates from the container mouth M, but the tamper evidence connected to the lower part of the skirt wall 3
  • the band hereinafter, simply referred to as “band”) 9 (see FIG. 1 (B)) is configured to remain in the container mouth portion M.
  • a band 9 is connected to the lower part of the skirt wall 3 via an annular weakening portion 10 extending over the entire circumference of the skirt wall 3 (see FIG. 1 (B)), and the annular weakening portion 10 is the skirt wall 3.
  • a slit (perforated) extending intermittently in the circumferential direction of the skirt wall 3 and the band 9 and a bridge (bridge) existing between adjacent slits so as to draw the band 9 up and down. The bridge breaks when pulled by a predetermined force.
  • the band 9 is configured to project inward toward the inner peripheral side and the amount of protrusion inward increases toward the upper side.
  • Five (one example of a plurality of) hooks (an example of engaging portions) 11 are provided at intervals (equal intervals in this example) in the circumferential direction (see FIGS. 1A and 1B).
  • Each hook 11 is substantially below the annular protrusion M2 (see FIG. 3B) formed below the male screw M1 on the outer circumference of the container mouth M with the cap 1 attached to the container mouth M. It is located at and is locked to the annular protrusion M2 by the opening operation. That is, the hook 11 is configured to be able to be locked to the annular projection M2 from below.
  • the alternate long and short dash line in the lower part of FIG. 2 shows the cross-sectional shape of the portion where the hook 11 is not provided.
  • the annular protrusion M2 is located inside the inclined portion 13 or above it, and when the cap 1 is rotated in the opening direction from this state, the container opening portion The cap 1 is relatively raised with respect to M, the fitting portion 12 is fitted into the annular protrusion M2, and the hook 11 is locked to the annular protrusion M2 from below. Further, when the cap 1 is continuously rotated in the opening direction, the annular weakening portion 10 is eventually broken and the band 9 remains in the container mouth portion M, while the cap body composed of the top wall 2 and the skirt wall 3 above the cap body is a container. It will be separated from the mouth M.
  • the inclined portion 13 contacts the annular protrusion M2 and the fitting portion 12 fits on the outer peripheral surface of the annular protrusion M2 until the hook 11 is locked to the annular protrusion M2 from below.
  • the band 9 is prevented from being lifted up obliquely, and the annular weakened portion 10 is fractured substantially uniformly without being biased, so that the tamper evidence is improved.
  • the fitting portion 12 fits on the outer peripheral surface of the annular protrusion M2 of the container mouth portion M, and the hook 11 surely engages the annular protrusion M2, so that the annular weakening portion 10 is broken. It is possible to prevent the so-called slip-out, in which the hook 11 gets over the annular protrusion M2.
  • the wall thickness of the lower portion 14 located below the female screw 5 is reduced to that of the upper portion 15 located above the female screw 5. It is larger than the wall thickness.
  • the lower portion 14 is a portion of the skirt wall 3 that is continuous below the female thread 5 (female thread forming region 5A).
  • the inner peripheral surface of the lower portion 14 extends so as to be separated from the outer side (outer peripheral surface) toward the lower side. Further, the inner diameter of the lowermost portion 16 connected below the lower portion 14 increases toward the lower side, and the rate of change of the inner diameter in the vertical direction is larger than the rate of change of the inner diameter of the lower portion 14 in the vertical direction. ing.
  • the upper portion 15 is a portion of the skirt wall 3 that is continuous above the female thread 5 (female thread forming region 5A).
  • the inner peripheral surface of the upper portion 15 also extends so as to be separated from the outer side (outer peripheral surface) toward the lower side. Further, above the upper portion 15, a corner portion 17 extending so that the inner peripheral surface and the outer peripheral surface bend inward is connected.
  • the position and vertical width of the female screw 5 are not uniform in the circumferential direction of the skirt wall 3. It will differ depending on the phase, and accordingly, the vertical widths of the lower portion 14 and the upper portion 15 will also differ depending on the phase.
  • the thickness of the lower portion 14 is made larger than that of the upper portion 15, the thickness of the lower portion 14 is equal to or less than the thickness of the upper portion 15, The skirt wall 3 is less likely to be expanded and deformed accordingly. Therefore, for example, when a carbonated beverage is filled in the container, the internal pressure of the container is increased by the gas pressure derived from the carbon dioxide gas, which causes the cap 1 to remain in the state in which the male screw M1 and the female screw 5 are engaged. Even if a pushing force is applied, since the skirt wall 3 is difficult to expand in diameter as described above, it is prevented that the skirt wall 3 expands to such an extent that the male screw M1 can be overcome and disengages from the engagement. It is possible to prevent blow-off from occurring.
  • the wall thickness of the portion of the female screw forming region 5A excluding the female screw 5 is equal to or less than the wall thickness of the upper portion 15, the diameter is increased in the female screw forming region 5A to prevent blow-off and overrun.
  • the wall thickness of the portion of the skirt wall 3 from the upper portion 15 to the lower portion 14 (the region including the female screw forming region 5A) excluding the female screw 5 is sufficient. Since it is made larger toward the bottom, it is possible to sufficiently prevent the occurrence of blow-off and overrun.
  • the two-dot chain line shown in the upper part of FIG. 2 indicates the cross-sectional shape of the portion of the skirt wall 3 excluding the female screw 5.
  • the wall thickness of the portion excluding the female screw 5 is increased at a constant rate toward the lower side, but the thickness is not limited to this, for example.
  • the ratio may be changed in the middle, or a portion where the wall thickness of the portion excluding the female screw 5 does not change may be provided in the vertical direction.
  • a part which does not correspond to either the lower part 14 or the lowermost part 16 may be provided, or the lowermost part 16 is not provided and the lower part 14 is not provided. May extend to the lower end of the skirt wall 3.
  • a portion that does not correspond to either the upper portion 15 or the corner portion 17 may be provided between the upper portion 15 and the corner portion 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un capuchon apte à empêcher une surpression et un débordement. Un capuchon (1) qui est fixé à une partie ouverture de récipient de manière à la recouvrir comprend : une paroi supérieure (2) ; et une paroi de jupe sensiblement cylindrique (3) qui descend depuis une partie périphérique externe de la paroi supérieure (2). La paroi de jupe (3) a une vis femelle (5) qui vient en prise par filetage avec une vis mâle formée sur la périphérie de la partie ouverture de récipient. Dans la paroi de jupe (3), l'épaisseur d'une portion inférieure (14) positionnée au-dessous de la vis femelle (5) est prévue pour être supérieure à l'épaisseur d'une partie supérieure (15) positionnée au-dessus de la vis femelle (5).
PCT/JP2020/007990 2019-03-07 2020-02-27 Capuchon WO2020179608A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020217029539A KR20210126105A (ko) 2019-03-07 2020-02-27 캡
CN202080013498.9A CN113412224B (zh) 2019-03-07 2020-02-27 盖

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019041673A JP6655741B1 (ja) 2019-03-07 2019-03-07 キャップ
JP2019-041673 2019-03-07

Publications (1)

Publication Number Publication Date
WO2020179608A1 true WO2020179608A1 (fr) 2020-09-10

Family

ID=69624458

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/007990 WO2020179608A1 (fr) 2019-03-07 2020-02-27 Capuchon

Country Status (4)

Country Link
JP (1) JP6655741B1 (fr)
KR (1) KR20210126105A (fr)
CN (1) CN113412224B (fr)
WO (1) WO2020179608A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024023163A1 (fr) * 2022-07-28 2024-02-01 Alpla Werke Alwin Lehner Gmbh & Co. Kg Récipient produit à partir de matière plastique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200345U (fr) * 1985-06-06 1986-12-15
JP2015071430A (ja) * 2013-10-02 2015-04-16 凸版印刷株式会社 ロックアップ容器
JP2018184212A (ja) * 2017-04-25 2018-11-22 Ｎｅｘｔ Ｉｎｎｏｖａｔｉｏｎ合同会社 回転体の回転補助機構、スクリューキャップ回転補助具及び回転補助型キャップ
JP2019018859A (ja) * 2017-07-11 2019-02-07 花王株式会社 計量キャップ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322011A (en) * 1980-01-21 1982-03-30 Owens-Illinois, Inc. Side seal closure
JPH0647150U (ja) * 1990-12-27 1994-06-28 久金属工業株式会社 瓶密封用キャップ
US5291175A (en) 1992-09-28 1994-03-01 Ohmite Manufacturing Co. Limiting heat flow in planar, high-density power resistors
JP4349698B2 (ja) * 1999-08-24 2009-10-21 日本クラウンコルク株式会社 プラスチックキャップ
JP5137809B2 (ja) * 2008-12-24 2013-02-06 日本クラウンコルク株式会社 合成樹脂製容器蓋
CN202295663U (zh) * 2011-09-14 2012-07-04 日本山村硝子株式会社 盖子及容器
CN109219565B (zh) * 2016-08-04 2019-07-23 日本山村硝子株式会社 合成树脂制盖

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200345U (fr) * 1985-06-06 1986-12-15
JP2015071430A (ja) * 2013-10-02 2015-04-16 凸版印刷株式会社 ロックアップ容器
JP2018184212A (ja) * 2017-04-25 2018-11-22 Ｎｅｘｔ Ｉｎｎｏｖａｔｉｏｎ合同会社 回転体の回転補助機構、スクリューキャップ回転補助具及び回転補助型キャップ
JP2019018859A (ja) * 2017-07-11 2019-02-07 花王株式会社 計量キャップ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024023163A1 (fr) * 2022-07-28 2024-02-01 Alpla Werke Alwin Lehner Gmbh & Co. Kg Récipient produit à partir de matière plastique
CH719939A1 (de) * 2022-07-28 2024-02-15 Alpla Werke Alwin Lehner Gmbh & Co Kg Behälter hergestellt aus Kunststoff, mit einem einstückig mit dem Behälter ausgeformten, eine Öffnung definierenden Hals.

Also Published As

Publication number Publication date
CN113412224A (zh) 2021-09-17
JP2020142836A (ja) 2020-09-10
CN113412224B (zh) 2023-01-13
JP6655741B1 (ja) 2020-02-26
KR20210126105A (ko) 2021-10-19

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