WO2021117317A1 - Flacon de bouteille et récipient de bouteille - Google Patents

Flacon de bouteille et récipient de bouteille Download PDF

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Publication number
WO2021117317A1
WO2021117317A1 PCT/JP2020/036327 JP2020036327W WO2021117317A1 WO 2021117317 A1 WO2021117317 A1 WO 2021117317A1 JP 2020036327 W JP2020036327 W JP 2020036327W WO 2021117317 A1 WO2021117317 A1 WO 2021117317A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottle
cap
outer diameter
mouth
screw
Prior art date
Application number
PCT/JP2020/036327
Other languages
English (en)
Japanese (ja)
Inventor
健 村瀬
長谷川　俊幸
章太 田中
Original Assignee
東洋製罐株式会社
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 東洋製罐株式会社 filed Critical 東洋製罐株式会社
Priority to JP2021563756A priority Critical patent/JP7494860B2/ja
Publication of WO2021117317A1 publication Critical patent/WO2021117317A1/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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/46—Local reinforcements, e.g. adjacent 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
    • 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

Definitions

  • the present invention relates to a bottle can and a bottle container having a locking portion in which the hem of the screw cap is locked below the screw portion in the mouth portion.
  • a metal bottle can used as a beverage container has a can body and a can bottom, has a mouth portion having a diameter smaller than that of the can body at the opening of the can body, and a screw portion is formed at the mouth portion. It is widely used as a bottle container with a screw cap that can be re-plugged at the mouth.
  • a base plate made of a metal material such as aluminum, aluminum alloy, or steel is punched into a circular shape and drawn to obtain a bottomed cylindrical cup-shaped body, which is further processed. After drawing and ironing (DI molding) to obtain a bottomed cylindrical can body, a tapered shoulder and cylindrical mouth are formed in the necking process, and then screwing and the like are performed. Manufactured by molding the including mouth.
  • a screw portion 110 having a male screw shape is formed at the mouth portion of such a bottle can, and a skirt portion 130 that bulges outward in the radial direction is formed below the screw portion 110.
  • the locking portion 120 to be provided is formed in an annular shape over the entire circumference around the can shaft.
  • the locking portion 120 is a portion where the hem portion 153 of the screw cap with a bridge (hereinafter, simply referred to as “cap”) 150 is rolled-on molded, and contracts inward in the radial direction below the bulging skirt portion 130.
  • the shape is such that the hem portion 153 of the cap 150 having the bead portion 140 having a diameter and being bent inward in the radial direction can be locked.
  • the cap 150 is wrapped around the mouth 101 in the capping step. Specifically, the mouth 101 is covered with a climax tubular cap 150, and a downward load is applied to the cap 150 to seal the inside of the bottle can 100, and the peripheral wall of the cap 150 is maintained while maintaining this sealed state.
  • a thread roller is pressed inward in the radial direction at a height position corresponding to the threaded portion 110 against the upper portion of the portion 152, and is rolled in the circumferential direction around the can axis to be screwed onto the peripheral wall portion 152 of the cap 150.
  • a female screw shape that matches the male screw shape of the portion 110 is formed, and a skirt roller is used inward in the radial direction at a height position facing the skirt portion 130 and the bead portion 140 with respect to the lower end of the peripheral wall portion 152 of the cap 150.
  • the hem portion 153 of the cap 150 is rolled-on-molded by rolling around the entire circumference of the can shaft while applying a load to the cap 150, whereby the hem portion 153 of the cap 150 is in close contact with the skirt portion 130 and the bead portion 140. It is stopped (see, for example, Patent Document 1).
  • the two skirt rollers face each other and apply a load inward in the radial direction, so that the bottle can If the strength of the mouth portion is low, the degree of deformation of the mouth portion 101 from a perfect circle to an ellipse in a plan view may be greater.
  • the mouth portion 101 is greatly deformed, the hem portion 153 of the cap 150 is excessively deformed in the radial direction due to the deformation of the mouth portion 101, so that the bridge is broken and the consumer can accurately judge whether or not the cap is opened.
  • the sealing point cannot be formed easily, the holding force of the cap is insufficient, and the sealing cannot be sufficiently performed, resulting in leakage.
  • the present invention solves the above problems, and an object of the present invention is to suppress deformation of the mouth portion in the capping process even when the original plate for forming a bottle can is thinned. It is an object of the present invention to provide bottle cans and bottle containers that can prevent the occurrence of capping defects such as broken bridges and leakage of filled contents.
  • the bottle can of the present invention is a bottomed tubular bottle can having a mouth portion at the top.
  • the mouth portion is perpendicular to the screw portion to which the screw cap is screwed, the annular locking portion in which the hem portion of the screw cap is locked below the screw portion, and the lower portion of the locking portion.
  • the diameter of the mouth of the bottle can is A (mm)
  • the thickness of the original plate for forming the bottle can is B (mm)
  • the radius difference between the maximum outer diameter and the minimum outer diameter of the locking portion (bead depth).
  • the bottle container of the present invention is a bottle container having a bottomed tubular bottle can having a mouth portion at the top and a screw cap attached to the mouth portion of the bottle can.
  • the bottle can is the bottle can
  • a female screw portion that can be screwed into the male screw shape of the screw portion of the bottle can is formed on the peripheral wall portion of the eclipsed tubular cap body having the top plate portion and the peripheral wall portion hanging from the outer peripheral edge of the screw cap.
  • a hem portion that is locked to the skirt portion of the bottle can is provided below the female screw portion.
  • the diameter of the mouth of the bottle can is A (mm)
  • the thickness of the original plate for forming the bottle can is B (mm)
  • the hem of the cap is locked.
  • the radius difference (bead depth) between the maximum outer diameter and the minimum outer diameter of the annular locking portion is C (mm)
  • the equation (1): A ⁇ B ⁇ C> 12.7 is satisfied.
  • the radius difference (bead depth) C between the maximum outer diameter and the minimum outer diameter of the locking portion is 1.30 mm or more, so that the peripheral wall portion of the cap is formed in the capping step. Since it is possible to reliably suppress the load applied to the mouth portion of the bottle can through the lower end of the bottle can, it is possible to more reliably suppress the deformation of the mouth portion in the capping process. According to the third aspect of the present invention, it is possible to suppress the occurrence of elliptical deformation on the slope constituting the locking portion when an inward load is applied to the locking portion in the capping step.
  • the bottle can is formed through the lower end of the peripheral wall portion of the cap in the capping step. Since it is possible to reliably suppress the application of a load to the mouth portion, it is possible to reliably suppress the deformation of the mouth portion in the capping process.
  • the bottle container includes a bottomed tubular bottle can 100 which is filled with contents such as a beverage and has a mouth 101 at the top, and the bottle can. It has a screw cap 150 that is attached to the mouth 101 of 100 and seals the bottle can 100.
  • the bottle can 100 is made of a metal material such as aluminum, an aluminum alloy, and steel.
  • the bottle can 100 has a can body (not shown) and a can bottom (not shown), and the can body has a columnar body (not shown) continuous with the can bottom and an upper part from the body.
  • a mouth having a diameter smaller than that of the can body is erected via a tapered shoulder portion 102 (see FIG. 2) that contracts inward in the radial direction toward the can and a vertical portion 144 that hangs above the shoulder portion 102. It has a unit 101.
  • a threaded portion 110 having a male screw shape is formed in the mouth portion 101 by combining a plurality of curved portions having a substantially arcuate cross section to which the cap 150 can be screwed, and a hem of the cap 150 is formed below the threaded portion 110.
  • a locking portion 120 in which the portion 153 is locked by roll-on molding is formed in an annular shape over the entire circumference of the can shaft. As shown in FIG. 2, the locking portion 120 includes a skirt portion 130 formed at a position adjacent to the lower side of the screw portion 110 and a bead portion 140 formed at a continuous position below the skirt portion 130. Have.
  • the skirt portion 130 is an annular convex portion formed by bulging outward in the radial direction (left in FIG.
  • the bead portion 140 is an annular recess formed in which the diameter is reduced inward in the radial direction (to the right in FIG. 2) and the diameter is reduced in the direction opposite to that of the skirt portion 130 over the entire circumference around the can shaft. Further, on the opening edge of the upper end of the mouth portion 101, a curl portion 103 folded downward from the outside in the radial direction is formed in an annular shape over the entire circumference around the can shaft.
  • the skirt portion 130 has an upper slope 131 that goes outward in the radial direction as it goes downward, a wall surface 132 that extends substantially vertically from the upper slope 131, and a lower surface that continues from the wall surface 132. It has a lower slope 133 that goes inward in the radial direction as it goes toward, and each side (each face) has a cross-sectional shape that is continuous in a smooth arc shape, and the upper slope 131 is continuous with the lower end of the threaded portion 110. ing. Further, the lower slope 133 has a substantially straight cross section.
  • the bead portion 140 is continuous with the lower slope 133 of the skirt portion 130 in a vertical cross section along the can axis, and is continuous with the upper slope 141 having a substantially straight cross section inward in the radial direction as it goes downward and the upper slope 141. It has a wall surface 142 extending substantially in the vertical direction and a lower slope 143 that extends outward in the radial direction as it goes downward from the wall surface 142, and each side (each surface) has a smooth arcuate continuous cross-sectional shape. It is a thing.
  • a vertically extending vertical portion 144 is connected below the lower slope 143 of the bead portion 140, whereby the locking portion 120 and the shoulder portion 102 are connected via the vertical portion 144.
  • the upper slope 141 of the bead portion 140 is formed so as to coincide with the extension line of the lower slope 133 of the skirt portion 130, and the lower slope 133 of the skirt portion 130 and the upper slope 141 of the bead portion 140 are formed.
  • the hem portion 153 of the cap 150 is roll-on molded and the hem portion 153 is bent inward in the radial direction, so that the cap 150 is locked.
  • the diameter of the mouth portion 101 of the bottle can 100 is A (mm)
  • the plate thickness of the original plate for forming the bottle can 100 is B (mm)
  • the maximum outer diameter and the minimum outer diameter of the locking portion 120 are satisfied. Equation (1): A ⁇ B ⁇ C> 12.7
  • the diameter of the mouth portion 101 of the bottle can 100 means the maximum outer diameter of the curl portion 103.
  • the maximum outer diameter of the locking portion 120 means the maximum outer diameter of the skirt portion 130, that is, the maximum bulging diameter, and in the present embodiment, means the maximum outer diameter of the wall surface 132.
  • the minimum outer diameter of the locking portion 120 means the minimum outer diameter of the bead portion 140, and in the present embodiment, means the minimum outer diameter of the wall surface 142.
  • the bead depth (indicated by d in FIG. 2) is, for example, 1.30 mm or more, preferably 1.30 mm or more and 1.70 mm or less, more preferably 1.40 mm or more and 1.60 mm or less, and particularly preferably 1.45 mm. Will be done.
  • the bead depth is 1.30 mm or more, it is possible to reliably suppress the load from being applied to the mouth portion 101 of the bottle can 100 via the lower end of the peripheral wall portion of the cap 150 in the capping step. If the bead depth is too small, a load is applied to the mouth portion 101 via the hem portion 153 of the cap 150 during roll-on molding, which may cause deformation of the mouth portion 101.
  • the maximum outer diameter of the skirt portion 130 is, for example, 37.80 mm.
  • the minimum outer diameter of the bead portion 140 is, for example, 34.90.
  • the height of the bead portion 140 along the can shaft is, for example, 4.42 mm.
  • the diameter of the mouth 101 of the bottle can 100 is, for example, 33.45 mm, and can be about 33.0 to 34.0 mm.
  • the thickness of the original plate for forming the bottle can 100 may be, for example, 0.300 to 0.350 mm when the capacity is 300 mL and 0.300 to 0.350 mm when the capacity is 400 mL. it can.
  • the inclination angle ⁇ of the lower slope 133 of the skirt portion 130 and the upper slope 141 of the bead portion 140 is set to, for example, 48.7 ° with respect to the can axis.
  • the maximum outer diameter of the locking portion 120 that is, the maximum outer diameter of the skirt portion 130 and the outer diameter (maximum outer diameter) of the vertical portion 144 can be substantially the same. Since the maximum outer diameter of the skirt portion 130 and the outer diameter of the vertical portion 144 are substantially the same size, a downward load and a radial inward direction are applied to the locking portion 120 along the can axis in the capping process. When a load is applied, it is possible to suppress the occurrence of elliptical deformation on the upper slope 141, the wall surface 142 and the lower slope 143 constituting the bead portion 140, so that a sufficient holding force of the cap can be obtained.
  • the cap 150 is a female threaded portion screwed into the peripheral wall portion 152 of the eclipsed tubular metal cap body having the top plate portion 151 and the peripheral wall portion 152 hanging from the outer peripheral edge in the male thread shape of the threaded portion 110 of the bottle can 100. Is formed, and a hem portion 153 that is locked to the locking portion 120 of the bottle can 100 is formed below the female screw portion.
  • a sealing member 154 made of a soft resin or the like for sealing the open end surface of the bottle can 100 is sandwiched on the back surface of the top plate portion 151 inside the cap 150.
  • a base plate made of a metal material such as aluminum, aluminum alloy, or steel is punched into a circular shape and drawn to obtain a bottomed cylindrical cup-shaped body, which is further drawn and ironed (DI).
  • DI ironed
  • a tapered shoulder portion and a cylindrical mouth portion are formed in a necking process, and then the mouth portion including screw processing is formed. By doing so, it is manufactured as a seamless unit.
  • the bottle container is manufactured by filling the inside of the bottle can 100 with contents such as beverages, and fitting a climax tubular cap 150 to the mouth 101 by a capping device.
  • the cap 150 In the capping step of attaching the cap 150 to the bottle can 100, the cap 150 is covered so that the sealing member 154 comes into contact with the open end surface of the mouth portion 101, and a downward load is applied to the cap 150 to enter the bottle can 100. Is sealed, and while maintaining this sealed state, the thread roller is pressed inward in the radial direction at a height position corresponding to the threaded portion 110 against the upper portion of the peripheral wall portion 152 of the cap 150, and the circumference around the can axis. By rolling in the direction, a screwed state is formed while forming a female screw shape that matches the male screw shape of the screw portion 110 on the peripheral wall of the cap 150, and the skirt portion 130 is formed with respect to the lower end of the peripheral wall of the cap 150.
  • the hem portion 153 of the cap 150 is roll-on molded by rolling around the entire circumference of the can axis while applying a load inward in the radial direction by a skirt roller at a height position facing the boundary between the bead portion 140 and the bead portion 140.
  • the hem portion 153 of the cap 150 is brought into close contact with and locked to the skirt portion 130 and the bead portion 140.
  • the diameter A (mm) of the mouth portion 101 of the bottle can 100, the plate thickness B (mm) of the original plate for forming the bottle can, and the hem portion 153 are locked. Since the radius difference (bead depth) C (mm) between the maximum outer diameter and the minimum outer diameter of the annular locking portion 120 is satisfied with the formula (1): A ⁇ B ⁇ C> 12.7, in the capping step.
  • the hem portion 153 of the cap 150 is wound around the locking portion 120 to form a shape that can be locked, when a load is applied inward in the radial direction to the lower end of the peripheral wall portion 152 of the cap 150.
  • the thickness of the original plate for forming the bottle can 100 is thin. Even when the bottle is made, deformation of the mouth 101 in the capping process can be suppressed, sufficient holding power of the cap 150 can be obtained, and capping defects such as breakage of the bridge and leakage of the filled contents can be obtained. Occurrence can be prevented.
  • the bottle can and the bottle container according to the embodiment of the present invention have been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention. it can.
  • the specific shapes of the skirt portion 130 and the bead portion 140 are such that the hem portion 153 of the cap 150 can be rolled-on molded and locked to the locking portion 120, each surface is not flat. It may be arcuately curved.
  • the bottle can may have a can body and a can bottom formed as separate bodies.
  • the average value was 2.28 mm. The results are shown in FIG. If the amount of deflection is 2.65 mm or less, it is considered that the occurrence of capping defects is suppressed and it can withstand practical use.
  • the amount of deflection is smaller than 2.65 mm, which may cause capping defects, and the weight can be reduced.
  • the same strength (deflection resistance) as that of a bottle can using a thick original plate such as the bottle can [5] according to Reference Example 1 can be obtained.
  • the bottle can [6] according to Comparative Example 1 it was confirmed that the amount of deflection was as large as 3.18 mm and sufficient strength (deflection resistance) could not be obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention aborde le problème de la fourniture d'un flacon de bouteille et d'un récipient de bouteille selon lequel il est possible d'empêcher la déformation d'une ouverture dans une étape de capsulage et d'empêcher l'apparition de défauts de capsulage tels qu'une rupture de pont ou une fuite de contenu remplissant le flacon de bouteille, même lorsque l'épaisseur d'une feuille source pour former la bouteille peut être réduite.　Ce flacon de bouteille (100) est un flacon de bouteille à fond qui peut avoir une ouverture (101) dans sa partie supérieure, le flacon de bouteille pouvant être caractérisé en ce que : l'ouverture présente une section de filetage (110) sur laquelle un bouchon vissé (150) est fileté, et une section de mise en prise annulaire (120) avec laquelle une section inférieure (153) du bouchon vissé est mise en prise en dessous de la section de filetage ; et la relation A × B × C >12,7, où A (en mm) est le diamètre d'ouverture de l'ouverture du flacon de bouteille, B (en mm) est l'épaisseur de feuille de la feuille source pour former le flacon de bouteille et C (en mm) est la distance radiale (la profondeur de bourrelet) entre le plus grand diamètre extérieur de la section de mise en prise et le plus petit diamètre extérieur de celle-ci.
PCT/JP2020/036327 2019-12-10 2020-09-25 Flacon de bouteille et récipient de bouteille WO2021117317A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021563756A JP7494860B2 (ja) 2019-12-10 2020-09-25 ボトル缶およびボトル容器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-222939 2019-12-10
JP2019222939 2019-12-10

Publications (1)

Publication Number Publication Date
WO2021117317A1 true WO2021117317A1 (fr) 2021-06-17

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PCT/JP2020/036327 WO2021117317A1 (fr) 2019-12-10 2020-09-25 Flacon de bouteille et récipient de bouteille

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JP (1) JP7494860B2 (fr)
TW (1) TWI786453B (fr)
WO (1) WO2021117317A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016196332A (ja) * 2015-04-06 2016-11-24 武内プレス工業株式会社 ネジ付き金属容器
JP2017514756A (ja) * 2014-03-26 2017-06-08 アルダフ エムピー ウエスト フランス スクリューキャップ型のシール要素を受けることができる首部を含む金属容器
JP2017109760A (ja) * 2015-12-16 2017-06-22 ユニバーサル製缶株式会社 キャッピング方法
JP2018127229A (ja) * 2017-02-06 2018-08-16 ユニバーサル製缶株式会社 ボトル缶
JP2018193137A (ja) * 2018-09-14 2018-12-06 東洋製罐株式会社 ボトル缶、キャップ付きボトル缶、及びボトル缶の製造方法
JP2019137450A (ja) * 2018-02-14 2019-08-22 ユニバーサル製缶株式会社 ボトル缶およびボトル缶の製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7555927B2 (en) * 2004-10-20 2009-07-07 Universal Can Corporation Bottle-shaped can manufacturing method and bottle-shaped can
EP1964787B1 (fr) * 2007-02-27 2010-05-26 Guala Closures S.p.A. Dispositif de fermeture inviolable pour conteneurs à goulot à vis
BR112019017293B1 (pt) * 2017-02-23 2023-02-14 Dai Nippon Printing Co., Ltd Pré-forma compósita e método para produzir a mesma, recipiente compósito e método para produzir o mesmo, e produto de recipiente compósito carregado com cerveja

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017514756A (ja) * 2014-03-26 2017-06-08 アルダフ エムピー ウエスト フランス スクリューキャップ型のシール要素を受けることができる首部を含む金属容器
JP2016196332A (ja) * 2015-04-06 2016-11-24 武内プレス工業株式会社 ネジ付き金属容器
JP2017109760A (ja) * 2015-12-16 2017-06-22 ユニバーサル製缶株式会社 キャッピング方法
JP2018127229A (ja) * 2017-02-06 2018-08-16 ユニバーサル製缶株式会社 ボトル缶
JP2019137450A (ja) * 2018-02-14 2019-08-22 ユニバーサル製缶株式会社 ボトル缶およびボトル缶の製造方法
JP2018193137A (ja) * 2018-09-14 2018-12-06 東洋製罐株式会社 ボトル缶、キャップ付きボトル缶、及びボトル缶の製造方法

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Publication number Publication date
TW202126544A (zh) 2021-07-16
JPWO2021117317A1 (fr) 2021-06-17
TWI786453B (zh) 2022-12-11
JP7494860B2 (ja) 2024-06-04

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