JP2022136678A - cap - Google Patents

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Publication number
JP2022136678A
JP2022136678A JP2021036399A JP2021036399A JP2022136678A JP 2022136678 A JP2022136678 A JP 2022136678A JP 2021036399 A JP2021036399 A JP 2021036399A JP 2021036399 A JP2021036399 A JP 2021036399A JP 2022136678 A JP2022136678 A JP 2022136678A
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JP
Japan
Prior art keywords
cap
slit
top plate
container
processed
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2021036399A
Other languages
Japanese (ja)
Inventor
英司 荒木
Eiji Araki
健司 高木
Kenji Takagi
英治 藤重
Eiji Fujishige
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daiwa Can Co Ltd
Original Assignee
Daiwa Can Co Ltd
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 Daiwa Can Co Ltd filed Critical Daiwa Can Co Ltd
Priority to JP2021036399A priority Critical patent/JP2022136678A/en
Priority to CN202280019428.3A priority patent/CN116963965A/en
Priority to EP22767150.0A priority patent/EP4306443A1/en
Priority to KR1020237029534A priority patent/KR20230154823A/en
Priority to PCT/JP2022/010040 priority patent/WO2022191196A1/en
Publication of JP2022136678A publication Critical patent/JP2022136678A/en
Priority to US18/461,824 priority patent/US20230406576A1/en
Pending legal-status Critical Current

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    • 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
    • B65D41/325—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 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B21D51/50—Making screw caps
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
    • B65D17/4014—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab and provided with attached means for reclosing or resealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • 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
    • 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
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • 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
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/20—Frangible elements completely enclosed in 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
    • 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

Landscapes

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

Abstract

To provide a cap which can suppress occurrence of distortion even if a slit part with a long circumferential length is formed.SOLUTION: A cap 1 includes a cap body 11 having a top plate part 21 and a tubular skirt part 22 provided on the peripheral edge part of the top plate part 21, a sealing member 12 provided on the inner surface side of the top plate part 21 and sealing the mouth part of a container 100, a slit part 32 extending in the circumferential direction of the skirt part 22 and a processing part 33 that is at least part of the slit part 32 in the circumferential direction and is formed at least on the top plate part 21 side of the slit part 32.SELECTED DRAWING: Figure 1

Description

本発明は、飲料を収容する缶容器を密封するキャップに関する。 TECHNICAL FIELD The present invention relates to a cap for sealing a can container containing a beverage.

従来から、容器口部を密封する天板部とスカート部とを有するキャップが知られている。また、開栓時の容器内圧を開放するために、スカート部にスリット部を形成したキャップが提案されている（例えば、特許文献１参照）。このようなキャップは、容器の口部へキャッピング（装着）するときに、天板部とスカート部とを接続するコーナー部が絞り成形される。 2. Description of the Related Art Conventionally, there has been known a cap having a top plate portion and a skirt portion for sealing a mouth portion of a container. In addition, a cap has been proposed in which a slit is formed in the skirt in order to release the internal pressure of the container when the cap is opened (see, for example, Patent Document 1). In such a cap, the corner portion connecting the top plate portion and the skirt portion is formed by drawing when the cap is capped (attached) to the mouth portion of the container.

特開２００８－０５６３２３号公報JP 2008-056323 A

このようなキャップは、スリット部の周方向長さを長くすると、キャップの容器口部へのキャッピングの際のキャップ本体のコーナー部の絞り成形時に、スリット部の上側端部に歪みが生じる虞がある。 In such a cap, if the circumferential length of the slit portion is increased, there is a risk that the upper end portion of the slit portion may be distorted when the corner portion of the cap main body is drawn for capping the mouth portion of the container with the cap. be.

そこで本発明は、周方向の長さが長いスリット部を形成しても歪みの発生を抑制できるキャップを提供することを目的とする。 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a cap capable of suppressing the occurrence of distortion even when a slit portion having a long circumferential length is formed.

本発明の一態様によれば、キャップは、天板部及び前記天板部の周縁部に設けられた筒状のスカート部を有するキャップ本体と、前記天板部の内面側に設けられ、容器口部を密封する密封部材と、前記スカート部の周方向に延在するスリット部と、前記スリット部の前記周方向の少なくとも一部であって、且つ、前記スリット部の少なくとも前記天板部側に形成された加工部と、を備える。 According to one aspect of the present invention, the cap includes a cap body having a top plate portion and a cylindrical skirt portion provided on the peripheral edge portion of the top plate portion, and a cap body provided on the inner surface side of the top plate portion, a sealing member for sealing a mouth portion; a slit portion extending in the circumferential direction of the skirt portion; and a processed portion formed in the

本発明によれば、周方向の長さが長いスリット部を形成しても歪みの発生を抑制できるキャップを提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the cap which can suppress generation|occurrence|production of distortion can be provided even if the slit part with the long circumferential length is formed.

本発明の一実施形態に係るキャップ及び缶容器の構成を示す側面図。BRIEF DESCRIPTION OF THE DRAWINGS The side view which shows the structure of the cap which concerns on one Embodiment of this invention, and a can container. 同キャップの構成を示す側面図。The side view which shows the structure of the same cap. 同キャップの構成を示す平面図。The top view which shows the structure of the same cap. 同キャップの構成を示す断面図。Sectional drawing which shows the structure of the same cap.

以下、本発明の一実施形態に係るキャップ１を、図１乃至図４を用いて説明する。
図１は、本発明の一実施形態に係るキャップ１及び缶容器１００の構成を模式的に示す側面図、図２は、キャップ１の構成であって、缶容器１００の口部（容器口部）にキャッピングする前の構成を示す側面図、図３はキャップ１の構成を示す平面図、図４は、キャップ１の構成を図３中ＩＶ－ＩＶ線断面で示す断面図である。 A cap 1 according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG.
FIG. 1 is a side view schematically showing the configuration of a cap 1 and a can container 100 according to one embodiment of the present invention, and FIG. ), FIG. 3 is a plan view showing the configuration of the cap 1, and FIG. 4 is a cross-sectional view showing the configuration of the cap 1 taken along line IV--IV in FIG.

図１に示すように、キャップ１は、缶容器１００の口部に被冠した状態で巻締固着されることで、口部を密封する。先ず、図１を用いて缶容器１００の説明を行う。 As shown in FIG. 1, the cap 1 seals the mouth of the can container 100 by being seamed and fixed while covering the mouth. First, the can container 100 will be described with reference to FIG.

図１に示すように、缶容器１００は、飲料等を収容する所謂ボトル型容器である。例えば、缶容器１００は、両面に樹脂製フィルムが積層されたアルミニウム合金や表面処理鋼板等の金属材料により構成される。缶容器１００は、一方の端部が縮径された、異なる外径を有する円筒状に形成される。缶容器１００は、一方の端部に、収容した飲料を排出する口部を有する。口部は、その外周面に、缶容器１００の底面側から端部に向かって、顎部、雄螺子部及びカール部を有する。 As shown in FIG. 1, the can container 100 is a so-called bottle-type container for holding beverages and the like. For example, the can container 100 is made of a metal material such as an aluminum alloy or a surface-treated steel plate having resin films laminated on both sides thereof. The can container 100 is formed in a cylindrical shape having a different outer diameter with one end being reduced in diameter. The can container 100 has an opening at one end for discharging the contained beverage. The mouth portion has a jaw portion, a male screw portion, and a curl portion on its outer peripheral surface from the bottom side of the can container 100 toward the end portion.

顎部は、環状に突出することで構成される。カール部は、雄螺子部よりも小径に形成される。また、カール部は、キャップ１の内径よりも小さく構成される。カール部は、口部の端部を１回以上折り曲げることで形成される。カール部は、缶容器１００に収納された飲料を排出する開口部を構成する。 The jaw is configured by protruding in an annular shape. The curled portion is formed to have a smaller diameter than the male threaded portion. Also, the curled portion is configured to be smaller than the inner diameter of the cap 1 . The curl is formed by folding the end of the mouth one or more times. The curled portion constitutes an opening through which the beverage contained in the can container 100 is discharged.

図１乃至図４に示すように、キャップ１は、キャップ本体１１と、キャップ本体１１内に一体又は別体に設けられる密封部材１２と、を備える。本実施形態において、密封部材１２がキャップ本体１１内に一体に設けられたキャップ１の例を用いて説明する。 As shown in FIGS. 1 to 4, the cap 1 includes a cap body 11 and a sealing member 12 integrally or separately provided within the cap body 11 . In this embodiment, an example of the cap 1 in which the sealing member 12 is provided integrally within the cap main body 11 will be described.

キャップ本体１１は、アルミニウム合金等の金属素材に樹脂皮膜層を形成した材料によって構成される。キャップ本体１１は、薄肉の平板状の当該材料を絞り成形、ナーリング成形、ロールオン成形及びプレス成形等の各成形によってカップ状に形成される。 The cap main body 11 is made of a material in which a resin film layer is formed on a metal material such as an aluminum alloy. The cap main body 11 is formed into a cup-like shape by drawing, knurling, roll-on, press-molding, or the like from a thin plate-shaped material.

図１乃至図４に示すように、キャップ本体１１は、円板状の天板部２１と、天板部２１の周縁部から垂下する円筒状のスカート部２２と、を備える。キャップ本体１１は、天板部２１及びスカート部２２が、円環状、且つ、曲面状または直線状のコーナー部２３によって一体に連続して構成される。 As shown in FIGS. 1 to 4 , the cap body 11 includes a disk-shaped top plate portion 21 and a cylindrical skirt portion 22 hanging down from the peripheral edge portion of the top plate portion 21 . The cap body 11 is configured such that a top plate portion 21 and a skirt portion 22 are integrally and continuously formed by an annular, curved or linear corner portion 23 .

天板部２１は、円板状に構成される。図１及び図４に示すように、天板部２１は、主面が平面状に形成される。なお、天板部２１は、その一部にエンボス及びデボスの少なくとも一方が加工されていてもよい。 The top plate portion 21 is configured in a disc shape. As shown in FIGS. 1 and 4, the top plate portion 21 has a planar main surface. At least one of embossing and debossing may be applied to a part of the top plate portion 21 .

スカート部２２は、一端がコーナー部２３を介して天板部２１と連続し、他端が開口して構成される。図１、図２及び図４に示すように、スカート部２２は、複数のナール部３１、複数のスリット部３２、各スリット部３２に設けられた加工部３３、雌螺子部３４及びタンパーエビデンスバンド部３５を有する。スカート部２２には、例えば、天板部２１側の端部側に複数のナール部３１、複数のスリット部３２、複数の加工部３３が形成され、そして、中央側に雌螺子部３４が形成され、開口する端部側にタンパーエビデンスバンド部３５が形成される。 The skirt portion 22 is configured such that one end thereof is continuous with the top plate portion 21 through the corner portion 23 and the other end is open. As shown in FIGS. 1, 2 and 4, the skirt portion 22 includes a plurality of knurled portions 31, a plurality of slit portions 32, a processed portion 33 provided in each slit portion 32, a female screw portion 34 and a tamper evidence band. A portion 35 is provided. In the skirt portion 22, for example, a plurality of knurled portions 31, a plurality of slit portions 32, and a plurality of processed portions 33 are formed on the end portion side on the top plate portion 21 side, and a female screw portion 34 is formed on the center side. A tamper evidence band portion 35 is formed on the open end side.

天板部２１と、複数のナール部３１、スリット部３２、雌螺子部３４及びタンパーエビデンスバンド部３５が成形されていない円筒状のスカート部２２と、コーナー部２３から構成されるカップ状の成形品にナーリング成形やロールオン成形等の加工を行うことで、スカート部２２に複数のナール部３１、複数のスリット部３２、雌螺子部３４及びタンパーエビデンスバンド部３５が形成される。また、雌螺子部３４は、キャップ１を缶容器１００にキャッピングするときに、缶容器１００に装着された状態で形成される。 A top plate portion 21, a cylindrical skirt portion 22 in which a plurality of knurl portions 31, a slit portion 32, a female screw portion 34 and a tamper evidence band portion 35 are not formed, and a cup-shaped molding composed of a corner portion 23 A plurality of knurled portions 31, a plurality of slit portions 32, a female screw portion 34, and a tamper evidence band portion 35 are formed in the skirt portion 22 by performing processing such as knurling molding and roll-on molding on the product. Further, the female screw portion 34 is formed in a state of being attached to the can container 100 when capping the can container 100 with the cap 1 .

ナール部３１は、スカート部２２が径方向で内方に窪む凹部である。例えば、複数のナール部３１は、いくつかが等間隔に周方向に並んで配置されるとともに、いくつかが等間隔に配置されたナール部群の間に、スリット部３２が配置される。 The knurled portion 31 is a concave portion in which the skirt portion 22 is recessed radially inward. For example, some of the plurality of knurled portions 31 are arranged in the circumferential direction at equal intervals, and the slit portions 32 are arranged between groups of knurled portions in which some of the knurled portions 31 are arranged at equal intervals.

図１乃至図４に示すように、スリット部３２は、スカート部２２の周方向に延在する。例えば、スリット部３２の周方向の長さは、１つのナール部３１の周方向の長さよりも長い。スリット部３２は、スカート部２２の内周面から突出する。スリット部３２は、開封時に缶容器１００内のガスを排出する切り込みである。例えば、スリット部３２の好適な周方向の長さは、５ｍｍ～２０ｍｍである。スリット部３２は、例えば複数設けられるが、単数であってもよい。 As shown in FIGS. 1 to 4, the slit portion 32 extends in the circumferential direction of the skirt portion 22. As shown in FIGS. For example, the circumferential length of the slit portion 32 is longer than the circumferential length of one knurled portion 31 . The slit portion 32 protrudes from the inner peripheral surface of the skirt portion 22 . The slit portion 32 is a cut for discharging the gas inside the can container 100 when the can container 100 is opened. For example, a suitable circumferential length of the slit portion 32 is 5 mm to 20 mm. For example, a plurality of slit portions 32 are provided, but a single slit portion may be provided.

このような、複数のナール部３１及び複数のスリット部３２は、例えば、周方向に並んで配置される。例えば、本実施形態において、スカート部２２の周方向で、ナール部３１が２１箇所に設けられ、スリット部３２が３箇所に形成される。そして、７つのナール部３１が等間隔に配置されるとともに、７つのナール部３１により構成される３つのナール部群の間にそれぞれスリット部３２が１２０°間隔で配置される。また、３つのスリット部３２は、スカート部２２の周方向で等間隔又はほぼ等間隔に設定される。 Such a plurality of knurled portions 31 and a plurality of slit portions 32 are arranged side by side in the circumferential direction, for example. For example, in the present embodiment, the knurled portions 31 are provided at 21 locations and the slit portions 32 are formed at 3 locations in the circumferential direction of the skirt portion 22 . The seven knurled portions 31 are arranged at regular intervals, and the slit portions 32 are arranged at intervals of 120° between the three knurled portion groups composed of the seven knurled portions 31 . Also, the three slit portions 32 are set at equal intervals or substantially equal intervals in the circumferential direction of the skirt portion 22 .

加工部３３は、スリット部３２の周方向の少なくとも一部であって、且つ、スリット部３２の少なくとも天板部２１側に形成される。即ち、加工部３３は、スリット部３２の天板部２１側であって、且つ、スリット部３２の両端の間に存するスカート部２２の少なくとも１箇所に成形される。加工部３３は、例えば、スカート部２２に設けられた凹部又は凸部である。 The processed portion 33 is at least a portion of the slit portion 32 in the circumferential direction and is formed at least on the top plate portion 21 side of the slit portion 32 . That is, the processed portion 33 is formed on at least one portion of the skirt portion 22 that is located on the top plate portion 21 side of the slit portion 32 and between both ends of the slit portion 32 . The processed portion 33 is, for example, a concave portion or a convex portion provided in the skirt portion 22 .

好適な例として、加工部３３は、スリット部３２の両端部又は両端側、より好ましくは両端部の２箇所に設けられる。また、好適な例として、加工部３３は、スリット部３２の天板部２１側にのみ設けられる。ここで、スリット部３２の両端側とは、スリット部３２の端部から１ｍｍ～２ｍｍ程度である。なお、スリット部３２の周方向の長さが５ｍｍといったように、スリット部３２の端部から所定の距離だけ加工部３３を離間させるとスリット部３２の中央側に加工部３３が２つ位置する長さのスリット３２の場合には、スリット部３２の端部に加工部３３が形成されることが好ましい。 As a preferred example, the processed portions 33 are provided at both ends or both ends sides of the slit portion 32, more preferably at two locations, at both ends. As a preferred example, the processed portion 33 is provided only on the top plate portion 21 side of the slit portion 32 . Here, both end sides of the slit portion 32 are about 1 mm to 2 mm from the end portion of the slit portion 32 . In addition, if the processed portion 33 is separated from the end portion of the slit portion 32 by a predetermined distance such that the length of the slit portion 32 in the circumferential direction is 5 mm, two processed portions 33 are positioned on the center side of the slit portion 32. In the case of the long slit 32 , it is preferable that the processed portion 33 is formed at the end of the slit portion 32 .

図１乃至図３に示す本実施形態の例では、加工部３３は、スリット部３２の両端部に接続された、スカート部２２の外周面から径方向内方に窪んだ凹部であり、スリット部３２の外端部からキャップ１（スカート部２２）の軸線方向上方に延びるように形成される。また、本実施形態の例では、加工部３３は、周方向の長さよりもキャップ本体１１の軸線方向の長さが長く形成される。 In the example of the present embodiment shown in FIGS. 1 to 3, the processed portion 33 is a concave portion that is recessed radially inward from the outer peripheral surface of the skirt portion 22 and is connected to both ends of the slit portion 32. It is formed so as to extend upward in the axial direction of the cap 1 (skirt portion 22) from the outer end portion of 32. As shown in FIG. In addition, in the example of the present embodiment, the length of the processed portion 33 in the axial direction of the cap body 11 is longer than the length in the circumferential direction.

雌螺子部３４は、缶容器１００の雄螺子部と螺合可能に構成される。雌螺子部３４は、缶容器１００と共に成形される。即ち、雌螺子部３４は、缶容器１００に取り付けられる前のキャップ１の完成品においては成形されておらず、缶容器１００と一体に組み合わされたときに成形される。 The female threaded portion 34 is configured to be screwable with the male threaded portion of the can container 100 . The female screw portion 34 is molded together with the can container 100 . That is, the female screw portion 34 is not formed in the finished product of the cap 1 before being attached to the can container 100, but is formed when the cap 1 is combined integrally with the can container 100. As shown in FIG.

タンパーエビデンスバンド部３５は、キャップ１が缶容器１００から離間する方向であって、且つ、キャップ１の軸線方向で、缶容器１００の顎部と係合する。また、タンパーエビデンスバンド部３５は、キャップ１の開封時に破断して、スカート部２２から脱離するための破断部３５ａを有する。即ち、タンパーエビデンスバンド部３５は、スカート部２２の端部側に破断部３５ａを残してスリットが形成されることで構成され、雌螺子部３４と同様に、缶容器１００と一体に組み合わされたときに、缶容器１００の顎部の形状に賦形されることで、顎部に係合する。 The tamper evidence band portion 35 engages the jaw of the can container 100 in the axial direction of the cap 1 and in the direction in which the cap 1 moves away from the can container 100 . The tamper-evidence band portion 35 also has a breaking portion 35 a for breaking when the cap 1 is opened and detached from the skirt portion 22 . That is, the tamper-evidence band portion 35 is formed by forming a slit while leaving a breakage portion 35a on the end portion side of the skirt portion 22, and is combined integrally with the can container 100 in the same manner as the female screw portion 34. Sometimes it is shaped to the shape of the jaws of the can container 100 to engage the jaws.

密封部材１２は、キャップ本体１１と一体又は別体に構成される。本実施形態において、密封部材１２は、図４に示すように、キャップ本体１１と一体に構成される。密封部材１２は、天板部２１のキャップ１を缶容器１００にキャッピングしたときに少なくとも缶容器１００の口部に対向する部位に設けられる。密封部材１２は、例えば、環状又は円板状に形成される。また、密封部材１２は、下方に筒状に突出するように形成され、口部の内周面に当接するリブや、口部と密着する面積を確保するための環状の凹部を有する構成であってもよい。 The sealing member 12 is configured integrally with or separately from the cap body 11 . In this embodiment, the sealing member 12 is configured integrally with the cap body 11 as shown in FIG. The sealing member 12 is provided at a portion facing at least the mouth of the can container 100 when the cap 1 of the top plate portion 21 is capped on the can container 100 . The sealing member 12 is, for example, annular or disk-shaped. Further, the sealing member 12 is formed to protrude downward in a cylindrical shape, and has a rib that abuts against the inner peripheral surface of the mouth, and an annular recess for securing an area that is in close contact with the mouth. may

なお、例えば、密封部材１２は、例えば、キャップ本体１１と別体に構成され、キャップ本体１１側に摺動層が設けられ、口部側に密封層を有する円板状に形成されていてもよい。 For example, the sealing member 12 may be configured separately from the cap body 11, and may be formed in a disk shape having a sliding layer on the cap body 11 side and a sealing layer on the mouth side. good.

次に、このように構成されたキャップ１の製造方法について説明する。 Next, a method for manufacturing the cap 1 configured in this manner will be described.

先ず、シェルプレス装置にて、シート状の金属材料をしぼり加工し、カップ状の成形品を成形する。次に、成形品加工装置により、成形品に複数のナール部３１、複数のスリット部３２、複数の加工部３３及びタンパーエビデンスバンド部３５を成形する。 First, a sheet-shaped metal material is squeezed by a shell press to form a cup-shaped molded product. Next, a plurality of knurled portions 31, a plurality of slit portions 32, a plurality of processed portions 33, and a tamper evidence band portion 35 are formed on the molded product by a molded product processing apparatus.

次いで、密封部材成形装置により、複数のナール部３１、複数のスリット部３２、タンパーエビデンスバンド部３５を成形した成形品内に密封部材１２を成形する。これらの工程により、キャップ１が製造される。本実施形態では、密封部材は、樹脂材料を射出成形することにより形成している。 Next, the sealing member 12 is formed in the molded product in which the plurality of knurled portions 31, the plurality of slit portions 32, and the tamper evidence band portion 35 are formed by a sealing member forming apparatus. The cap 1 is manufactured through these steps. In this embodiment, the sealing member is formed by injection molding a resin material.

なお、例えば、製造されたキャップ１は、収集部へ収集される。一定数のキャップ１が収集されたら、次工程である、検査・梱包工程へ搬送され、品質検査及び梱包がなされる。 In addition, for example, the manufactured cap 1 is collected to a collection part. After a certain number of caps 1 have been collected, they are transported to the next process, the inspection/packaging process, where quality inspection and packing are performed.

次に、製造されたキャップ１の缶容器１００の口部へのキャッピング方法を説明する。例えば、缶容器１００の口部の先端部であるカール部と密封部材１２とが接触するように、缶容器１００の口部にキャップ１を被せる。この状態で、キャップ本体１１の天板部２１に荷重を掛け、且つ、コーナー部２３を下方（缶容器１００側）に向かって絞り成形しながら、スカート部２２をロールオン成形する。これにより、図１に示すように、コーナー部２３が所定の形状に絞り加工されるとともに、キャップ１のスカート部２２に雌螺子部３４が形成され、キャップ１が缶容器１００の口部に巻締固着される。なお、このようなキャッピング方法は、缶容器１００内に飲料が充填された状態で行われる。また、例えば、キャップ１がキャッピングされた缶容器１００は内容物に応じてレトルト処理される。 Next, a method of capping the opening of the can container 100 with the manufactured cap 1 will be described. For example, the mouth of the can 100 is covered with the cap 1 so that the curl portion, which is the tip of the mouth of the can 100, and the sealing member 12 are in contact with each other. In this state, a load is applied to the top plate portion 21 of the cap body 11, and the skirt portion 22 is roll-on-molded while drawing the corner portion 23 downward (toward the can container 100 side). As a result, as shown in FIG. 1, the corner portion 23 is drawn into a predetermined shape, and the female screw portion 34 is formed in the skirt portion 22 of the cap 1, so that the cap 1 is wound around the mouth portion of the can container 100. Fastened. Note that such a capping method is performed in a state where the can container 100 is filled with the beverage. Further, for example, the can container 100 capped with the cap 1 is retorted according to the contents.

このように構成されたキャップ１は、スリット部３２の周方向の少なくとも一部であって、且つ、スリット部３２の少なくとも天板部２１側に加工部３３を有する。このため、キャップ１を缶容器１００にキャッピングするときのキャップ本体１１のコーナー部２３の絞り成形によりスリット部３２の上部の壁面が縮径されても、スリット部３２の上部に歪みが生じることを抑制できる。 The cap 1 configured in this manner has the processed portion 33 at least a part of the slit portion 32 in the circumferential direction and at least on the top plate portion 21 side of the slit portion 32 . Therefore, even if the wall surface of the upper portion of the slit portion 32 is reduced in diameter by drawing the corner portion 23 of the cap body 11 when the cap 1 is capped on the can container 100, the upper portion of the slit portion 32 is prevented from being distorted. can be suppressed.

また、キャップ１は、スリット部３２の両端部又は両端側の２箇所に加工部３３を設けることで、絞り成形によってスリット部３２よりも周方向外方で収縮した部材がスリット部３２に形成された２箇所の加工部３３の間に移動することを防止できる。よって、キャップ１は、スリット部３２の上方に歪みが生じることを防止できる。また、キャップ１は、加工部３３を凹部又は凸部とすることで、スリット部３２の加工部３３を補強して変形し難くするとともに、スリット部３２の両端部の周縁部の壁面のだぶつきを緩和し、また、２箇所の加工部３３の間に張りを持たせることができる。 In addition, the cap 1 is provided with the processed portions 33 at two locations, one on either end or both ends of the slit portion 32, so that the slit portion 32 is formed with a member that has contracted outwardly in the circumferential direction from the slit portion 32 by draw forming. However, it is possible to prevent movement between the two processing portions 33 . Therefore, the cap 1 can prevent distortion above the slit portion 32 . In the cap 1, by forming the processed portion 33 as a concave portion or a convex portion, the processed portion 33 of the slit portion 32 is reinforced to make it difficult to deform, and the wall surfaces of the peripheral edge portions at both ends of the slit portion 32 are not loose. can be relaxed, and tension can be given between the two processed portions 33 .

また、加工部３３は、凹部又は凸部とし、そして、キャップ１の周方向の長さよりもキャップ１の軸線方向の長さを長く形成することで、スリット部３２の周方向外方の金属材料が絞り成形時にスリット部３２の上部に流動することを抑制できるため、スリット部３２の上部が歪むことを抑制できる。 In addition, the processed portion 33 is formed as a concave portion or a convex portion, and the length in the axial direction of the cap 1 is longer than the length in the circumferential direction of the cap 1, so that the metal material outside the slit portion 32 in the circumferential direction can be suppressed from flowing to the upper portion of the slit portion 32 during draw forming, so that the upper portion of the slit portion 32 can be suppressed from being distorted.

なお、本発明は上述した実施形態に限定されない。例えば、上述した例では、複数のナール部３１及び複数のスリット部３２の数の一例を挙げたが、ナール部３１及びスリット部３２の数は適宜設定可能である。 In addition, this invention is not limited to embodiment mentioned above. For example, although an example of the number of the plurality of knurled portions 31 and the plurality of slits 32 was given in the above example, the numbers of the knurled portions 31 and the number of the slits 32 can be set as appropriate.

また、上述した例では、加工部３３は、スリット部３２の周方向の少なくとも一部であって、且つ、スリット部３２の少なくとも天板部２１側に加工部３３を有する具体例として、スリット部３２の両端部であって、且つ、天板部２１側の２箇所に形成される構成を説明したが、これに限定されない。例えば、スリット部３２の両端と中央の３箇所に設けられる構成であってもよく、また、中央の１箇所に設けられる構成であってもよく、４箇所以上に設けられていても良い。また、加工部３３は、スリット部３２の天板部２１側に加えてスカート部２２の口部側に設けられる構成であってもよい。但し、加工部３３は、スリット部３２の両端部又は両端側の２箇所に設けられる構成が好ましい。 Further, in the above-described example, the processed portion 33 is at least a part of the slit portion 32 in the circumferential direction, and at least on the side of the top plate portion 21 of the slit portion 32. 32 and formed at two locations on the side of the top plate portion 21 has been described, but the present invention is not limited to this. For example, they may be provided at three locations, ie, both ends and the center of the slit portion 32, may be provided at one location at the center, or may be provided at four or more locations. Further, the processed portion 33 may be provided on the opening side of the skirt portion 22 in addition to the top plate portion 21 side of the slit portion 32 . However, it is preferable that the processed portions 33 are provided at both ends of the slit portion 32 or at two locations on both end sides.

また、周方向の長さよりも軸線方向の長さが長い加工部３３は、例えば直線状であるが、矩形状であっても楕円形状であってもよい。また、加工部３３は、歪みを抑制可能な形状であれば周方向の長さと軸線方向の長さとが同じながさであってもよい。
また、上述した例では、加工部３３は、凹部又は凸部である例を説明したが例えば、加工部３３は、スリットであってもよい。但し、加工部３３をスリットとすると、金属粉が生じる虞があるとともに、加工部３３の周囲の補強の効果が低減することから、加工部３３は凹部又は凸部である方が好ましい。 Further, the processed portion 33 whose length in the axial direction is longer than the length in the circumferential direction is, for example, linear, but may be rectangular or elliptical. Further, the processed portion 33 may have the same length in the circumferential direction and in the axial direction as long as it has a shape capable of suppressing distortion.
Also, in the above example, the processed portion 33 is a concave portion or a convex portion, but for example, the processed portion 33 may be a slit. However, if the processed portion 33 is a slit, metal powder may be generated and the effect of reinforcing the periphery of the processed portion 33 is reduced.

なお、本発明は、上記実施形態に限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で種々に変形することが可能である。また、各実施形態は適宜組み合わせて実施してもよく、その場合組み合わせた効果が得られる。更に、上記実施形態には種々の発明が含まれており、開示される複数の構成要件から選択された組み合わせにより種々の発明が抽出され得る。例えば、実施形態に示される全構成要件からいくつかの構成要件が削除されても、課題が解決でき、効果が得られる場合には、この構成要件が削除された構成が発明として抽出され得る。 It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the scope of the invention. Further, each embodiment may be implemented in combination as appropriate, in which case the combined effect can be obtained. Furthermore, various inventions are included in the above embodiments, and various inventions can be extracted by combinations selected from a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, if the problem can be solved and effects can be obtained, the configuration with the constituent elements deleted can be extracted as an invention.

１…キャップ、１１…キャップ本体、１２…密封部材、２１…天板部、２２…スカート部、２３…コーナー部、３１…ナール部、３２…スリット部、３３…加工部、３４…雌螺子部、３５…タンパーエビデンスバンド部、３５ａ…破断部、１００…缶容器（容器）。 DESCRIPTION OF SYMBOLS 1... Cap 11... Cap main body 12... Sealing member 21... Top plate part 22... Skirt part 23... Corner part 31... Knurl part 32... Slit part 33... Processed part 34... Female screw part , 35... Tamper evidence band part, 35a... Fracture part, 100... Can container (container).

Claims (5)

天板部及び前記天板部の周縁部に設けられた筒状のスカート部を有するキャップ本体と、
前記天板部の内面側に設けられ、容器口部を密封する密封部材と、
前記スカート部の周方向に延在するスリット部と、
前記スリット部の前記周方向の少なくとも一部であって、且つ、前記スリット部の少なくとも前記天板部側に形成された加工部と、
を備えるキャップ。 a cap main body having a top plate and a cylindrical skirt provided on the peripheral edge of the top plate;
a sealing member provided on the inner surface side of the top plate portion and sealing the mouth portion of the container;
a slit portion extending in the circumferential direction of the skirt portion;
a processed portion that is at least part of the slit portion in the circumferential direction and is formed at least on the top plate portion side of the slit portion;
cap with 前記加工部は、前記スリット部の両端部又は両端側の２箇所に設けられる、請求項１に記載のキャップ。 2. The cap according to claim 1, wherein said processed portions are provided at two locations on both ends or both ends of said slit portion. 前記加工部は、前記スリット部の前記天板部側にのみ設けられる、請求項１又は請求項２に記載のキャップ。 3. The cap according to claim 1, wherein the processed portion is provided only on the top plate portion side of the slit portion. 前記加工部は、前記スカート部に設けられた凹部又は凸部である、請求項１乃至請求項３のいずれか一項に記載のキャップ。 4. The cap according to any one of claims 1 to 3, wherein the processed portion is a concave portion or a convex portion provided on the skirt portion. 前記加工部は、前記周方向よりも、前記キャップの軸線方向の長さが長く形成されている、請求項１乃至請求項４のいずれか一項に記載のキャップ。
The cap according to any one of claims 1 to 4, wherein the processed portion is formed longer in the axial direction of the cap than in the circumferential direction.
JP2021036399A 2021-03-08 2021-03-08 cap Pending JP2022136678A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2021036399A JP2022136678A (en) 2021-03-08 2021-03-08 cap
CN202280019428.3A CN116963965A (en) 2021-03-08 2022-03-08 Cover for a container
EP22767150.0A EP4306443A1 (en) 2021-03-08 2022-03-08 Cap
KR1020237029534A KR20230154823A (en) 2021-03-08 2022-03-08 cap
PCT/JP2022/010040 WO2022191196A1 (en) 2021-03-08 2022-03-08 Cap
US18/461,824 US20230406576A1 (en) 2021-03-08 2023-09-06 Cap

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JP (1) JP2022136678A (en)
KR (1) KR20230154823A (en)
CN (1) CN116963965A (en)
WO (1) WO2022191196A1 (en)

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WO2004076306A1 (en) * 2003-02-28 2004-09-10 Daiwa Can Company Metal pilfer-proof cap
JP4727456B2 (en) * 2006-03-07 2011-07-20 日本クラウンコルク株式会社 Metal container lid with internal pressure release characteristics
JP5230916B2 (en) 2006-09-01 2013-07-10 大和製罐株式会社 Metal cap
JP2008230635A (en) * 2007-03-17 2008-10-02 Universal Seikan Kk Cap and bottle
JP6336343B2 (en) * 2014-06-30 2018-06-06 ユニバーサル製缶株式会社 Cap with liner and container with cap
JP2018177335A (en) * 2017-04-18 2018-11-15 ユニバーサル製缶株式会社 Cap and bottle with cap
JP6496438B2 (en) * 2018-04-18 2019-04-03 日本クロージャー株式会社 Container lid
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US20230406576A1 (en) 2023-12-21
CN116963965A (en) 2023-10-27
WO2022191196A1 (en) 2022-09-15
KR20230154823A (en) 2023-11-09

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