WO2004063043A1 - Capuchon, dispositif de fermeture et boisson conditionnee dans un contenant - Google Patents

Capuchon, dispositif de fermeture et boisson conditionnee dans un contenant Download PDF

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Publication number
WO2004063043A1
WO2004063043A1 PCT/JP2004/000075 JP2004000075W WO2004063043A1 WO 2004063043 A1 WO2004063043 A1 WO 2004063043A1 JP 2004000075 W JP2004000075 W JP 2004000075W WO 2004063043 A1 WO2004063043 A1 WO 2004063043A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
container
liner
top plate
exhaust holes
Prior art date
Application number
PCT/JP2004/000075
Other languages
English (en)
Japanese (ja)
Inventor
Hiroaki Tsutsumi
Fujio Iizuka
Masayoshi Shigeta
Original Assignee
Alcoa Closure Systems Japan, Limited
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 Alcoa Closure Systems Japan, Limited filed Critical Alcoa Closure Systems Japan, Limited
Publication of WO2004063043A1 publication Critical patent/WO2004063043A1/fr

Links

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
    • B65D41/348—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1661—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of a passage for the escape of gas between the closure and the lip of the container mouth

Definitions

  • the present invention relates to a cap for closing a container mouth, a closing device using the cap, and a packaged beverage.
  • a cap for closing the container mouth has been provided with a metal cap body consisting of a circular top plate and a tube hanging down from the periphery thereof, and a liner provided on the inner surface of the top plate. Things are often used.
  • cap there is a cap in which a plurality of exhaust holes having a length of about 3 mm are formed at an upper portion of a cylindrical portion (for example, see Japanese Patent Application Laid-Open No. 09-328158).
  • the internal pressure of the container may increase due to fermentation of the liquid content.
  • the cap was easily detached from the container at the time of sealing.
  • the present invention has been made in view of the above circumstances, and it is possible to obtain a sufficient sealing property when not opened, and to prevent an excessive increase in the internal pressure of the container when the container is closed again after opening.
  • the aim is to provide caps, closures and packaged beverages that can be used.
  • the cap of the present invention is a cap comprising a top plate portion and a cylindrical portion hanging down from the periphery thereof.
  • a main body and a liner provided on the inner surface of the top plate are provided.
  • a plurality of exhaust holes are formed in a cylindrical portion along a circumferential direction, and the length of each of the exhaust holes is set to 5 to 50 mm.
  • the outer diameter of the liner is 34.9 to 37 mm.
  • the inner surface of the liner can be formed so as to be substantially flat from the position in contact with the container mouth to the periphery.
  • a protruding portion protruding toward the container can be formed on the peripheral side from a position where the liner contacts the container mouth.
  • the height of the protrusion is 0.5 mm or less.
  • the cap of the present invention includes a cap body including a top plate portion and a tube portion hanging down from the periphery thereof, and a liner provided on the inner surface of the top plate portion.
  • the length of each of these exhaust holes is 5 to 50 mm, and the contact length of the liner with the outer surface of the opening end of the container mouth is 1.0 mm or less. It is characterized by the following.
  • the cap of the present invention includes a cap main body including a top plate portion and a tube portion hanging down from the periphery thereof, and a liner provided on the inner surface of the top plate portion, and the tube portion has a plurality of exhaust holes along a circumferential direction.
  • the length of each of the exhaust holes is 5 to 50 mm, and the length of the portion where the liner is not in contact with the container opening on the peripheral side from the position where it contacts the container opening. Is less than 1.0 mm.
  • the cap of the present invention can be configured such that the cap body is made of metal.
  • the cap body is preferably made of a material having a tensile strength of 20 ON / mm 2 or more.
  • the closure device of the present invention is a closure device including a container and a cap attached to a mouth thereof, wherein the cap includes a cap body including a top plate portion and a tubular portion hanging down from a peripheral edge thereof. And a liner provided on the inner surface of the top plate.
  • a plurality of exhaust holes are formed in the cylindrical portion along the circumferential direction. Each of the exhaust holes has a length of 5 to 5 O mm. Has an outer diameter of 34, 9 to 37 mm.
  • the container-packed beverage of the present invention is a container-packed beverage in which a beverage is filled in a closing device having a container and a cap attached to a mouth thereof, wherein the cap is formed from a top plate portion and a periphery thereof.
  • a cap body consisting of a hanging cylinder, and a cap provided on the inner surface of the top plate
  • a plurality of exhaust holes are formed in the cylindrical portion along the circumferential direction, the length of each of the exhaust holes is 5 to 5 O mm, and the outer diameter of the liner is 34.9. 337 mm.
  • FIG. 1 is a partial sectional view showing an embodiment of the cap of the present invention.
  • FIG. 2 is a sectional view showing a state before forming the cap shown in FIG.
  • FIG. 3 is an enlarged view of a main part of the cap shown in FIG.
  • FIG. 4 is an explanatory diagram illustrating the operation of the cap shown in FIG.
  • FIG. 5 is a sectional view showing a state before molding of another example of the cap of the present invention.
  • FIGS. 1 to 3 show an embodiment of the closing device of the present invention.
  • the closing device shown here is composed of a tl 21 and a cap 1 mounted on a container mouth 2 la. .
  • the container 21 is made of a metal such as aluminum, an aluminum alloy, or steel, and the open end 2 lb of the container mouth 2 la has an outwardly curved shape.
  • the container 21 preferably has an open end 21b having an outer diameter of 32 to 35 mm (preferably 33 to 34 mm).
  • the container 21 may be made of synthetic resin such as polyethylene terephthalate (PET) or glass.
  • the cap 1 includes a cap body 4 composed of a circular top plate 2 and a cylindrical portion 3 hanging down from the periphery thereof, and a liner 15 provided on the inner surface of the top plate 2.
  • the cylindrical portion 3 has a horizontal portion 6 (weakened line), a main portion 8 above the horizontal score 6, and a tamper evidence ring 9 (TE ring portion 9) connected to a lower end of the main portion 8 by a page 7. Is divided into
  • a screw portion 10 is formed in the cylindrical portion 3 when the cap 1 is attached to the container opening 21a.
  • the thread part 10 is formed so as to conform to the external thread 22 of the container mouth part 21a. Is done.
  • the lower part of the TE ring 9 is formed as a hem 11 which is curved inward along the bulging step 23 of the container opening 21a, and is locked to the bulging step 23 when the stopper is closed. .
  • the cap body 4 is preferably made of a metal such as aluminum, an aluminum alloy, and steel.
  • the material used for the cap body 4 preferably has a tensile strength (according to JISZ 2241) of 200 N / mni 2 or more (preferably 20 ⁇ 2 or more).
  • the screw portion 10 By setting the tensile strength in the above range, the screw portion 10 can be prevented from being deformed at the time of sealing, and the hold force of the screw portion 10 with respect to the male screw 22 of the container opening 21a can be increased. For this reason, it is possible to prevent the cap 1 from easily coming off the container mouth 21a when plugging, and to surely prevent an accident such as a cap jump. In addition, the sealing performance when not opened can be improved.
  • This tensile strength is preferably 25 ON / mm 2 or less.
  • an aluminum alloy 5151 specified by JIS can be mentioned.
  • a plurality of exhaust holes 12 are formed in the upper part of the cylindrical portion 3 at intervals in the circumferential direction.
  • the exhaust hole 12 is formed along the circumferential direction.
  • the exhaust hole 12 is preferably formed above the screw portion 10.
  • the length A (length in the circumferential direction) A of the exhaust hole 12 is 5 to 5 Omm (preferably 10 to 3 Omm).
  • the length A of the exhaust hole 12 is less than the above range, the effect of reducing the internal pressure of the container becomes insufficient when the internal pressure of the container becomes high after the second holding. If the length A exceeds the above range, the sealing property will decrease when not opened.
  • the length A of the exhaust hole 12 is such that the gas in the container is discharged to the outside when the internal pressure of the container 21 becomes 70 to 150 psi (0.48 to 1.03 MPa) (gauge pressure; the same applies hereinafter). Can be set. It is preferable that the lengths of the exhaust turrets 12 are set to be substantially equal to each other.
  • the exhaust holes 12 are preferably formed at substantially equal intervals in the circumferential direction. That is, it is preferable to form the two adjacent exhaust holes 12 so that the intervals between the two exhaust holes 12 are substantially equal.
  • the number of the exhaust holes 12 is preferably 2 to 6.
  • a knurl portion 13 which is a concave portion, is formed. By forming the knurled portion 13, the cap 1 can be easily opened.
  • the liner 15 can be made of a blend of polypropylene and rubber, polyethylene, or a relatively soft synthetic resin material such as EVA (ethylene-vinyl acetate copolymer).
  • FIG. 2 shows the unformed cap 1a before the cap 1 is formed.
  • the liner 5 is flat.
  • the outer diameter B of the liner 5 is 34.9 to 37 mm.
  • the opening end 21b is concentric with the liner 15 by the position of the liner 15 corresponding to the position 5a abutting on the container mouth 21a to the peripheral edge 5b. It is possible to prevent the plugging torque from increasing because it is guided smoothly to the desired position.
  • the inner surface (lower surface) of the liner 5 is preferably formed so that the portion from the position 5a in contact with the container opening 21a to the peripheral edge 5b is substantially flat.
  • the liner 5 of this part By forming the liner 5 of this part to be almost flat, the liner 5 of this part smoothly guides the open end 2 lb to a position concentric with the liner 15 when re-plugging. However, it is possible to prevent the closing torque from increasing.
  • the liner 5 has a contact length with respect to the outer surface 21 c of the open end 21 b of the container mouth 21 a (the area closer to the outer surface than the top of the open end 2 lb).
  • C is 1, 0 mm or less, preferably 0.3 to 1.0 mm, and more preferably 0.5 to 0.7 mm.
  • the contact length C is less than this range, the sealing property will be reduced when not opened. If the contact length C exceeds this range, the effect of reducing the internal pressure of the container tends to be insufficient when the internal pressure of the container increases after re-plugging.
  • the contact length C refers to the height of the portion where the liner 15 contacts the outer surface 21 c of the container.
  • the length D of the separated portion 5c (the portion not in contact with the container opening 21a) is 1.0. mm or less (preferably 0.5 mm or less).
  • the liner 5 can be formed in the cap body 4 by an in-shell molding method, or can be formed by a method in which a pre-formed substantially sheet-shaped liner 15 is fixed to the inner surface of the top plate 2. it can.
  • the internal pressure of the container can be increased.
  • the pressure in the container can be set so that the pressure at normal temperature exceeds the normal pressure (for example, 0.1 to 0.3 MPa).
  • the washing water is introduced into the cap 1 through the exhaust hole 12.
  • the liner 5 comes into contact with the open end 21b of the container mouth 2la, and the hermeticity is maintained.
  • the internal pressure of the container 21 may become extremely high (for example, 0.4 MPa or more) due to fermentation of the content liquid. As shown in FIG. 4, when the pressure in the container 21 increases, an upward force is applied to the top plate 2 and the liner 15.
  • the cylindrical portion 3 where the air hole 12 is formed is easily deformed.
  • the cylindrical portion 3 is deformed so that the interval between the exhaust holes 12 is increased, the top plate 2 and the liner 15 are raised, the liner 5 is separated from the opening end 21b, and the liner 15 is moved.
  • the gas in the container 21 is exhausted to the outside through the gap of 2 lb and the open end.
  • cap 1 it is possible to prevent the internal pressure of the container 21 from excessively increasing after re-opening, and to prevent the cap 1 from being detached due to the internal pressure of the container when the cap is opened, so-called cap flying. Also, sufficient sealing performance can be obtained when not opened.
  • the lengths of the exhaust holes 12 are all within the above range, a force is applied to the cap body 4 by the internal pressure of the container as compared with a case where a part of the exhaust holes is formed short. When this occurs, stress concentrates on the exhaust holes 12 and acts.
  • the cylindrical portion 3 is easily deformed so that the interval between the exhaust holes 12 is increased, and the gas is reliably discharged. Further, at the time of cleaning, the cleaning water is easily introduced into the inside through the exhaust holes 12 and the cleaning effect can be enhanced.
  • a beverage such as a juice beverage, a tea beverage, a coffee beverage, or the like is filled in the container 21 and the cap 1 is attached to the mouth 21 a to obtain a packaged beverage filled with the beverage.
  • a beverage such as a juice beverage, a tea beverage, a coffee beverage, or the like is filled in the container 21 and the cap 1 is attached to the mouth 21 a to obtain a packaged beverage filled with the beverage.
  • FIG. 5 shows another example of the cap of the present invention.
  • the cap shown here has an annular protruding portion 36 protruding toward the container (downward), on the inner surface of the liner 35, at a position closer to the container opening 21a and peripheral to the position 35a. This is different from the cap 1 shown in FIG.
  • the cross-sectional shape of the projection 36 can be substantially trapezoidal.
  • the protrusion height of the protrusion 36 is preferably 0.5 mm or less. If the protruding height exceeds this range, the opening end 2 lb abuts on the protruding portion 36 at the time of re-plugging, so that the closing torque tends to increase. Also, when the internal pressure of the container increases after re-opening, the gas in the container becomes difficult to be discharged.
  • the cap 1 shown in FIG. 1 was produced.
  • a plurality of exhaust holes 12 were formed at regular intervals, and all the lengths were set to the values shown in Table 1.
  • the outer diameter B of the liner 1 was 35.9 mm.
  • an aluminum alloy 515 specified in JIS was used as a material of the cap body 4.
  • the tensile strength of this material was 225 NZmm 2 .
  • the container 21 used had an open end 21b having an outer diameter of 33.5 mm.
  • the cap 1 was closed at a time, and the cap 1 was manually attached to the container opening 2la by hand.
  • the unopened closing device was dropped from a height of 30 cm, and it was confirmed whether or not the internal solution leaked due to the impact at the time of the drop. As a result, no leakage of the inner solution occurred when the length of the exhaust hole 12 was 50 mm or less, but in some cases where the length of the exhaust hole 12 exceeded 50 mm, It was confirmed that the solution leaked slightly.
  • Cap 1 was prepared in the same manner as in the test example except that the outer diameter of the liner 15 was set to the value shown in Table 3.
  • the length of the exhaust hole 12 was 12 mm.
  • Table 3 shows the results of the gas leak test.
  • the pressure in the vessel for this test was 0.7 MPa.
  • a cap 1 similar to that of Test Example 4 was made except that the strength of the material of the cap body 4 was set to the value shown in Table 4.
  • Table 4 shows the results of the quick opening test.
  • the pressure in the vessel for this test was 0.7 MPa;
  • Table 5 shows the results of the gas leak test.
  • the pressure in the vessel for this test was 0.7 MPa.
  • the cap of the present invention can prevent the internal pressure of the container from excessively increasing after re-opening, and can prevent the cap from being released due to the internal pressure of the container when the container is opened, so-called cap flying. In addition, sufficient sealing performance can be obtained when not opened.
  • the lengths of the exhaust holes are all within the above range, the stress is reduced when a force is applied to the cap body by the internal pressure of the container as compared with a case where a part of the exhaust holes is formed short. Acts concentrated on the holes.

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

Abstract

L'invention concerne un capuchon, un dispositif de fermeture utilisant celui-ci et une boisson conditionnée dans un contenant. Le capuchon comprend un corps de capuchon présentant une partie plate supérieure et une partie cylindrique suspendue verticalement par le bord périphérique de la partie plate supérieure ; et une doublure s'insérant dans le corps de capuchon. Une pluralité d'orifices de gaz d'échappement sont formés dans la partie cylindrique, sur le pourtour de celle-ci. La longueur de ces orifices est comprise entre 5 et 50 mm, et le diamètre extérieur de la doublure est compris entre 34,9 et 37 mm.
PCT/JP2004/000075 2003-01-14 2004-01-08 Capuchon, dispositif de fermeture et boisson conditionnee dans un contenant WO2004063043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003006437A JP2004262459A (ja) 2003-01-14 2003-01-14 キャップ、閉止装置、および容器詰め飲料
JP2003-6437 2003-01-14

Publications (1)

Publication Number Publication Date
WO2004063043A1 true WO2004063043A1 (fr) 2004-07-29

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PCT/JP2004/000075 WO2004063043A1 (fr) 2003-01-14 2004-01-08 Capuchon, dispositif de fermeture et boisson conditionnee dans un contenant

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JP (1) JP2004262459A (fr)
WO (1) WO2004063043A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121354A (ja) * 1984-07-04 1986-01-30 日本クラウンコルク株式会社 爆発防止特性を有する容器と容器蓋の組合せ
JPH082545A (ja) * 1994-06-22 1996-01-09 Japan Crown Cork Co Ltd 合成樹脂製容器蓋及びその製法
JPH08324609A (ja) * 1995-05-31 1996-12-10 Shibasaki Seisakusho:Kk 合成樹脂製キャップ
JPH08324610A (ja) * 1995-05-31 1996-12-10 Shibasaki Seisakusho:Kk 合成樹脂製キャップ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121354A (ja) * 1984-07-04 1986-01-30 日本クラウンコルク株式会社 爆発防止特性を有する容器と容器蓋の組合せ
JPH082545A (ja) * 1994-06-22 1996-01-09 Japan Crown Cork Co Ltd 合成樹脂製容器蓋及びその製法
JPH08324609A (ja) * 1995-05-31 1996-12-10 Shibasaki Seisakusho:Kk 合成樹脂製キャップ
JPH08324610A (ja) * 1995-05-31 1996-12-10 Shibasaki Seisakusho:Kk 合成樹脂製キャップ

Also Published As

Publication number Publication date
JP2004262459A (ja) 2004-09-24

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