WO2021060252A1 - Capuchon - Google Patents

Capuchon Download PDF

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Publication number
WO2021060252A1
WO2021060252A1 PCT/JP2020/035724 JP2020035724W WO2021060252A1 WO 2021060252 A1 WO2021060252 A1 WO 2021060252A1 JP 2020035724 W JP2020035724 W JP 2020035724W WO 2021060252 A1 WO2021060252 A1 WO 2021060252A1
Authority
WO
WIPO (PCT)
Prior art keywords
top plate
container mouth
shell
cap
packing
Prior art date
Application number
PCT/JP2020/035724
Other languages
English (en)
Japanese (ja)
Inventor
靖文 黒岩
広則 見城
一馬 境野
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 JP2021548917A priority Critical patent/JPWO2021060252A1/ja
Priority to KR1020227004917A priority patent/KR20220032103A/ko
Priority to CN202080066523.XA priority patent/CN114423688B/zh
Publication of WO2021060252A1 publication Critical patent/WO2021060252A1/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
    • B65D41/32—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
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs
    • 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
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045—Discs
    • 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
    • B65D49/00—Arrangements or devices for preventing refilling of containers
    • B65D49/12—Arrangements or devices for preventing refilling of containers by destroying, in the act of opening the container, an integral portion thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/06—Sealings formed by liquid or plastic material
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials

Definitions

  • the present invention relates to, for example, a cap having a two-piece structure including a shell and a packing separate from the shell.
  • a cap having a two-piece structure (so-called two-piece cap) provided with a shell and packing generally has a structure as shown in FIG. 3 (see, for example, Patent Document 1). That is, the cap shown in FIG. 3 includes a shell 1 and a packing 2 that is held in the shell 1 and seals the container mouth M, and is fitted into the packing 2 into the container mouth M when the cap is closed.
  • the middle leg 11 is provided.
  • the adhesion force of the outer peripheral surface of the middle foot 11 to the inner peripheral surface of the container mouth portion M is adjusted mainly by adjusting the amount of bulging to the outside of the outer peripheral surface of the middle foot 11. If this amount of swelling is increased, the above-mentioned adhesion and airtightness will be improved, but the closing torque will be increased, which leads to problems such as poor capping, and the opening torque will be increased, which is directly linked to the deterioration of usability. There is a problem.
  • 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 improving airtightness while suppressing an increase in opening torque and closing torque.
  • the cap according to the present invention has a shell having a top wall and a side wall hanging from the peripheral edge of the top wall, and a female screw screwed into a male screw at the container mouth is formed on the side wall.
  • a cap provided with a packing that is held in the shell and seals the container mouth portion, and the packing is connected to a top plate that covers the container mouth portion and a lower surface of the container mouth portion. It has a middle leg that is in close contact with the inner peripheral surface of the portion, and when the cap is closed, the top plate pressed downward by the top wall is elastically deformed, and the central portion of the top plate is larger than the peripheral portion. It was configured to be displaced (claim 1).
  • the lower surface of the top wall may be formed on a curved surface that is convex downward as a whole
  • the upper surface of the top plate may be formed on a curved surface that is convex upward as a whole (claim 2).
  • the packing has a bent portion that is bent downward from the peripheral edge of the top plate and is in close contact with the outer peripheral surface of the container mouth portion, and is located near the boundary between the top wall and the side wall in the shell.
  • An urging portion that projects inward of the shell may be provided, or an urging portion that projects outward may be provided on the outer peripheral surface of the packing (claim 3).
  • a cap capable of improving airtightness while suppressing an increase in opening torque and closing torque can be obtained.
  • the lower end (open end) side of the middle leg is due to the elastic deformation in which the central portion of the top plate of the packing is largely displaced downward from the peripheral edge when the cap is closed.
  • the elastic deformation is attempted so as to increase the diameter, and as a result, the outer peripheral surface of the middle leg is strongly adhered to the inner peripheral surface of the container mouth portion, and the airtightness can be improved.
  • it is not necessary to increase the amount of swelling of the outer peripheral surface of the midfoot to the outside as in the conventional case, it is possible to suppress an increase in the closing torque and the opening torque, and rather to reduce them. It will contribute.
  • the cap of the invention according to claim 2 can ensure the above-mentioned effects such as improvement of airtightness.
  • caps with an urging portion in general, when the cap is closed, the bent portion urged by the urging portion is placed on the outer peripheral side of the upper end of the container opening portion in the process of inserting the container mouth portion between the middle leg and the bent portion.
  • the cap of the invention according to claim 3 may come into contact with the container and become difficult to close. It tries to elastically deform so that the lower end (tip end) side of the curved portion expands in diameter, which can be expected to facilitate closing.
  • FIG. 1 It is a perspective view which shows the structure of the cap which concerns on one Embodiment of this invention, and the container mouth part to which this is attached.
  • (A) and (B) are semi-longitudinal profile views showing the configurations of the shell of the cap and the main parts of the packing. It is a semi-vertical sectional view which shows the structure of the cap.
  • the cap of this example is attached to the container mouth portion M, and is, for example, a shell 1 made of polypropylene-based resin and molded by injection molding or the like, and a polyethylene-based cap, for example. It is provided with a packing 2 made of resin and molded by injection molding or the like.
  • the container having the container mouth M is, for example, a PET bottle, and contains contents such as carbonated drinks and soft drinks.
  • the shell 1 has a circular top wall 3 in a plan view and a substantially cylindrical side wall 4 hanging from the peripheral edge of the top wall 3, and is screwed into a male screw M1 of a container mouth portion M.
  • a female screw 5 is formed on the side wall 4.
  • the cap of this example is a pilfer-proof cap, and an annular band (tamper evidence band) 8 is connected to the lower side of the side wall 4 via a plurality of breakable bridges 7, and the band 8 is connected to the band 8.
  • a locking piece (flap) 9 that engages with the annular protrusion (bead portion) M2 of the container mouth portion M is provided.
  • the packing 2 has a substantially cylindrical shape that is concentrically connected to the lower surface of the top plate 10 and is concentrically connected to the inner peripheral surface of the container mouth M and a circular top plate 10 that covers the container mouth M in the closed state. It has a middle leg 11 and a bent portion 12 that is bent downward from the peripheral edge of the top plate 10 and is in close contact with the outer peripheral surface of the container mouth portion M, so that the container mouth portion M can be sealed (see FIG. 3). ).
  • the packing 2 is used while being held in the shell 1. Specifically, the uppermost portion of the female screw 5 of the shell 1 is used as a packing retaining portion, and the packing is provided between the packing retaining portion and the top wall 3. When the bent portion 12 of 2 is pushed in, the packing 2 is held in a state in which the shell 1 can be relatively moved in the direction of the central axis and around the central axis.
  • the locking piece 9 of the shell 1 gets over the annular protrusion M2 in the process of closing, and in the closed state where the closing operation is completed, the locking piece 9 can be locked below the annular protrusion M2. It has returned to elasticity. Further, in the closed state, the middle leg 11 of the packing 2 is fitted into the opening of the container opening portion M, and the portion (communication portion) 13 between the middle leg 11 and the bent portion 12 on the top plate 10 is a container. It is sandwiched between the upper end of the mouth portion M and the top wall 3 of the shell 1.
  • the bent portion 12 in order to firmly adhere the bent portion 12 to the outer peripheral surface of the container mouth portion M in the closed state, the bent portion 12 is directed toward the inside of the shell 1 near the boundary between the top wall 3 and the side wall 4 in the shell 1.
  • An annular urging portion 14 (see FIG. 3) is provided, and in the closed state, the urging portion 14 urges the bent portion 12 downward, and this urging force causes the bent portion 12 to be placed in the container mouth. It is reliably and efficiently converted into a force pressing against the outer peripheral surface of the portion M.
  • the lower surface of the top wall 3 of the shell 1 is formed as a “curved surface that is convex downward as a whole”, and the upper surface of the top plate 10 of the packing 2 is formed. Is formed into a "curved surface that is convex upward as a whole", whereby the top plate 10 of the packing 2 whose upper surface is pressed downward by the lower surface of the top wall 3 of the shell 1 is elastically deformed at the time of closing.
  • the central portion of the top plate 10 is configured to be largely displaced downward from the peripheral edge portion.
  • the "curved surface that is convex downward as a whole” and the “curved surface that is convex upward as a whole” are the regions that do not form the “curved surface that is convex downward” and the “curved surface that is convex upward”, respectively.
  • regions that do not form a “downwardly convex curved surface” and an “upwardly convex curved surface” the concave portions shown in FIGS. 2 (B) and 3 are shown. 15 can be mentioned.
  • the lower end (open end) side of the middle foot 11 is displaced due to the elastic deformation in which the central portion of the top plate 10 of the packing 2 is largely displaced downward from the peripheral edge portion.
  • the elastic deformation is attempted so as to increase the diameter, so that the outer peripheral surface of the middle leg 11 is strongly adhered to the inner peripheral surface of the container mouth portion M, and the airtightness can be improved.
  • it is not necessary to increase the amount of swelling of the outer peripheral surface of the midfoot 11 to the outside as in the conventional case it is possible to suppress an increase in the closing torque and the opening torque, and rather to reduce them. Will also contribute.
  • the lower surface of the top wall 3 of the shell 1 is formed as a “curved surface that is convex downward as a whole”, and the upper surface of the top plate 10 of the packing 2 is formed. Is formed into a "curved surface that is convex upward as a whole", whereby the top plate 10 of the packing 2 whose upper surface is pressed downward by the lower surface of the top wall 3 of the shell 1 is elastically deformed at the time of closing.
  • the central portion of the top plate 10 is configured to be largely displaced downward from the peripheral edge portion, but the point is that the packing 2 whose upper surface is pressed downward by the lower surface of the top wall 3 of the shell 1 at the time of closing. It is sufficient that the top plate 10 of the top plate 10 is elastically deformed and the central portion of the top plate 10 is largely displaced downward from the peripheral portion, and the means thereof is limited to the configurations of FIGS. 2A and 2B. Not done.
  • the upper surface of the top plate 10 of the packing 2 may be formed as a “curved surface that is convex upward as a whole”, while the lower surface of the top wall 3 of the shell 1 may be flat (flat). Further, it may be formed on a "curved surface that is convex upward as a whole” that is gentler than the upper surface of the top plate 10 of the packing 2.
  • the lower surface of the top wall 3 of the shell 1 may be formed as a “curved surface that is convex downward as a whole”, while the upper surface of the top plate 10 of the packing 2 may be flat (flat). Further, it may be formed on a "curved surface that is convex downward as a whole” that is gentler than the lower surface of the top wall 3 of the shell 1.
  • a downwardly convex protrusion may be provided at the center of the lower surface of the top wall 3 of the shell 1, or an upwardly convex protrusion may be provided at the center of the upper surface of the top plate 10 of the packing 2.
  • the size (height and width), position, number and shape of the protruding portion are determined by the top plate 10 of the packing 2 whose upper surface is pressed downward by the lower surface of the top wall 3 of the shell 1 when the plug is closed. It may be appropriately determined within a range in which the top plate 10 is elastically deformed and the central portion of the top plate 10 is largely displaced downward from the peripheral edge portion.
  • the central portion of the top plate 10 is above the peripheral edge (outside the opening).
  • the central portion of the elastically deformed top plate 10 may be configured to be largely displaced downward from the peripheral portion. .. In this case, both the lower surface of the top wall 3 and the upper surface of the top plate 10 can be flat.
  • an urging portion 14 is provided in the vicinity of the boundary between the top wall 3 and the side wall 4 in the shell 1 so as to protrude in a wedge shape in a vertical cross-sectional view toward the inside of the shell 1.
  • an urging portion 14 projecting outward may be provided on the outer peripheral surface of the packing 2. In this case, it is conceivable that the urging portion 14 is removed from the shell 1 and the inner diameter of the vicinity of the boundary between the top wall 3 and the side wall 4 is gradually increased downward.

Landscapes

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

Abstract

L'invention concerne un capuchon capable d'améliorer l'étanchéité à l'air sans augmenter le couple d'ouverture et le couple de fermeture. Le capuchon est pourvu : d'une coque 1 ayant une paroi supérieure 3, une paroi latérale 4 s'étendant vers le bas à partir du bord périphérique de la paroi supérieure 3 et un filetage femelle 5 formé sur la paroi latérale 4 et destiné à être amené en prise par vissage avec un filetage mâle M1 d'une partie d'embouchure de récipient M ; et d'un joint d'étanchéité 2 maintenu à l'intérieur de la coque 1 et scellant la partie d'embouchure de récipient M. Le Joint d'étanchéité 2 est pourvu d'une plaque supérieure 10 destinée à recouvrir la partie d'embouchure de récipient M et d'une tige 11 disposée en continu à partir de la surface inférieure de la plaque supérieure 10 et venant en contact étroit avec la surface périphérique interne de la partie d'embouchure de récipient M et la partie centrale de la plaque supérieure 10 est déplacée vers le bas de façon plus importante que la partie de bord périphérique de celle-ci lorsque la plaque supérieure 10 se déforme élastiquement lorsqu'elle est poussée vers le bas par la paroi supérieure 4 pendant la fermeture.
PCT/JP2020/035724 2019-09-25 2020-09-23 Capuchon WO2021060252A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021548917A JPWO2021060252A1 (fr) 2019-09-25 2020-09-23
KR1020227004917A KR20220032103A (ko) 2019-09-25 2020-09-23 캡
CN202080066523.XA CN114423688B (zh) 2019-09-25 2020-09-23 盖

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019174179 2019-09-25
JP2019-174179 2019-09-25

Publications (1)

Publication Number Publication Date
WO2021060252A1 true WO2021060252A1 (fr) 2021-04-01

Family

ID=75166147

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/035724 WO2021060252A1 (fr) 2019-09-25 2020-09-23 Capuchon

Country Status (4)

Country Link
JP (1) JPWO2021060252A1 (fr)
KR (1) KR20220032103A (fr)
CN (1) CN114423688B (fr)
WO (1) WO2021060252A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11193041A (ja) * 1997-08-21 1999-07-21 Hidan:Kk 容器用蓋
US6412661B1 (en) * 1999-09-09 2002-07-02 Robert E. Hannah, Sr. Plastic paint container with redundant closure, spill resistant pour spout and liquid recovery
WO2009096019A1 (fr) * 2008-01-31 2009-08-06 Nihon Yamamura Glass Co., Ltd. Couvercle et récipient doté d'un couvercle

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087035B (de) * 1957-07-01 1960-08-11 Fritz Schulte Dichtungseinlage aus elastischem Kunststoff fuer Behaelterverschlusskappen
JPS53106702A (en) 1977-03-01 1978-09-18 Koutai Kousakushiyo Kk Device for cleaning feed inlet in coke oven
JPS5674447A (en) * 1979-11-24 1981-06-19 Crown Cork Japan Vessel cover provided with improved liner
JP3734102B2 (ja) * 1995-09-26 2006-01-11 株式会社アルコア・クロージャー・システムズ 閉止装置及び合成樹脂製キャップ並びに容器
JP4327924B2 (ja) * 1997-11-22 2009-09-09 日本山村硝子株式会社 ピルファープルーフキャップ
US5884788A (en) * 1997-12-17 1999-03-23 Wilde; Sheldon L. Tamper-indicating closure
US6477823B1 (en) * 1998-07-30 2002-11-12 Kerr Group, Inc. Closure and container system for hot filled containers
CA2305227A1 (fr) * 1999-04-27 2000-10-27 James L. Gregory Fermeture doublee pour recipients ayant differentes configurations de bague
JP4594546B2 (ja) * 2001-03-30 2010-12-08 日本山村硝子株式会社 容器口部の密封用キャップ
US20090107997A1 (en) * 2007-10-30 2009-04-30 Cornelius Derek W Leak-proof drinking cup and lid assembly
JP6177791B2 (ja) * 2011-11-18 2017-08-09 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 膜および膜を備える首部
BR112019005254A2 (pt) * 2016-09-20 2019-06-04 Tetra Laval Holdings & Finance tampa, e, conjunto.
WO2018054844A1 (fr) * 2016-09-20 2018-03-29 Tetra Laval Holdings & Finance S.A. Bec verseur pour emballage alimentaire
JP7141812B2 (ja) * 2017-02-15 2022-09-26 日本クロージャー株式会社 金属製本体及び合成樹脂製ライナーを備えた容器蓋

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11193041A (ja) * 1997-08-21 1999-07-21 Hidan:Kk 容器用蓋
US6412661B1 (en) * 1999-09-09 2002-07-02 Robert E. Hannah, Sr. Plastic paint container with redundant closure, spill resistant pour spout and liquid recovery
WO2009096019A1 (fr) * 2008-01-31 2009-08-06 Nihon Yamamura Glass Co., Ltd. Couvercle et récipient doté d'un couvercle

Also Published As

Publication number Publication date
JPWO2021060252A1 (fr) 2021-04-01
CN114423688B (zh) 2024-05-28
KR20220032103A (ko) 2022-03-15
CN114423688A (zh) 2022-04-29

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