JP5179985B2 - opener - Google Patents

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JP5179985B2
JP5179985B2 JP2008192721A JP2008192721A JP5179985B2 JP 5179985 B2 JP5179985 B2 JP 5179985B2 JP 2008192721 A JP2008192721 A JP 2008192721A JP 2008192721 A JP2008192721 A JP 2008192721A JP 5179985 B2 JP5179985 B2 JP 5179985B2
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lid
opener
opening
blade
outer peripheral
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JP2010030619A (en
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陽 山盛
浩光 植田
清 堀井
威史 宗
祥造 藤井
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Toyo Seikan Kaisha Ltd
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Toyo Seikan Kaisha Ltd
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Description

本発明は、アルミ箔層を含む多層フィルムからなるフィルム部を備えた缶蓋を持つ陽圧缶又は常圧缶を簡易に開封するためのオープナーに関する。   The present invention relates to an opener for easily opening a positive pressure can or a normal pressure can having a can lid provided with a film portion made of a multilayer film including an aluminum foil layer.

本出願人は、レギュラーコーヒー缶詰等の容器として、パネル裏面にアルミニウム箔積層樹脂フィルムをヒートシールして中央部に設けた開口部を封鎖密封した缶蓋を缶胴に巻締し、フィルムの膨張状態で内部が陽圧状態に保たれていることが確認できると共に、開封時には樹脂フィルムにオープナーのカッター刃を突き刺して初期破断を行ってから回転破断を行うことにより、開封初期の内容物のガス圧による飛び散りを防止しながら開封できるようにしたものを提案した(特許文献1〜4参照)。従来提案されている缶蓋のオープナーは、流通段階ではカッター刃が不用意にフィルムに突き刺して破断することがないように、オーバーキャップに収納保持されており、例えば図8に示すような構造になっている。   The present applicant, as a container for regular coffee cans, etc., heat-sealed the aluminum foil laminated resin film on the back of the panel and sealed and sealed the opening provided in the center part around the can body, the film expansion It can be confirmed that the inside is kept in a positive pressure state in the state, and at the time of opening, the opener cutter blade is pierced into the resin film, the initial breakage is performed, and then the rotational breakage is performed, whereby the gas of the contents at the initial stage of opening The thing which enabled it to open while preventing the scattering by pressure was proposed (refer patent documents 1-4). A conventionally proposed can lid opener is stored and held in an overcap so that the cutter blade does not inadvertently pierce the film and break at the distribution stage. For example, the structure shown in FIG. It has become.

図8(a)に示すオープナー50は、カッター台座51と切刃52を有し、カッター台座51は短円筒状の胴部53とこの胴部53の下端から半径方向の内側に張り出している環状の切刃台座54と胴部53の上端から半径方向の外側に張り出している環状のフランジ55とを備えている。該オープナーをオーバーキャップに係合保持させるために、切刃台座54の内周面に半径方向に突出した環状突条56が形成されている。オーバーキャップ60は、図8(b)に示すように、天壁61の中央部に設けられた円筒支持体62の外周面に形成された嵌合凹部63を有し、該嵌合凹部63にオープナー50の環状突条56が嵌合して係止することによって、オーバーキャップ内にオープナーを収容保持し、開封時にオープナーを取外して使用できるようになっている。開封後は、使用済みオープナーをオーバーキャップに元の状態に戻して収容するか、または廃棄するようにしている。   The opener 50 shown in FIG. 8A has a cutter base 51 and a cutting edge 52, and the cutter base 51 has a short cylindrical body 53 and an annular shape projecting radially inward from the lower end of the body 53. And an annular flange 55 projecting outward in the radial direction from the upper end of the body portion 53. In order to engage and hold the opener with the overcap, an annular ridge 56 projecting radially is formed on the inner peripheral surface of the cutting blade base 54. As shown in FIG. 8 (b), the overcap 60 has a fitting recess 63 formed on the outer peripheral surface of a cylindrical support 62 provided at the center of the top wall 61. When the annular protrusion 56 of the opener 50 is fitted and locked, the opener is accommodated and held in the overcap, and the opener can be removed and used when opened. After opening, the used opener is returned to its original state in the overcap and accommodated or discarded.

特開2004−168318号公報JP 2004-168318 A 特開2005−329961号公報JP 2005-329961 A 特開2006−27732号公報JP 2006-27732 A 特開2007−84083号公報JP 2007-84083 A

前記缶蓋の前記フィルム部をオープナーで切断して開口した状態では、開口の縁にフィルム蓋材のギザギザの切れ端縁が発生し、開口後該切れ端縁が開口内に復元して内容物の取り出しに邪魔になると共に切れ端縁が手や指に触れると刺激を与える恐れがあるという問題点があった。この問題点を解消するために、開封後にカッターをそのまま開口部に押し込んだ状態にしておくことによって、カッターの外周部でフィルム蓋材の開口の切れ端縁を押さえ込んで開口部に復元を防止することが考えられる。しかしながら、従来のオープナーは、前記したようにカッター台座の内側にオーバーキャップに取り付けるための環状突条があり、そのまま開口部に取付けた状態では計量スプーン等をカッター台座越に入れる際に、邪魔になり操作性に障害がある。また、取り出す際、計量スプーンから零れたレギュラーコーヒーが前記環状凸条に部分的に堆積してしまいコーヒーの品質保持の観点からも好ましくないという問題点があった。   When the film portion of the can lid is opened by cutting with an opener, a jagged cut edge of the film lid material is generated at the edge of the opening, and after the opening, the cut edge is restored into the opening and the contents are taken out. There is a problem that there is a risk of irritation when the cut edge touches the hand or finger. In order to solve this problem, by pressing the cutter into the opening as it is after opening, pressing the cut edge of the film lid on the outer periphery of the cutter to prevent restoration to the opening Can be considered. However, as described above, the conventional opener has an annular ridge to be attached to the overcap on the inside of the cutter pedestal, and when attached to the opening as it is, it is obstructive when putting a measuring spoon or the like over the cutter pedestal. There are obstacles in operability. Moreover, when taking out, the regular coffee which spilled from the measuring spoon partially accumulated on the said cyclic | annular protrusion, and there existed a problem that it was unpreferable also from a viewpoint of the quality maintenance of coffee.

そこで、本発明はレギュラーコーヒー缶の缶蓋開封用のオープナーにおける上記問題点を解消しようとするものであり、開封後の開口縁の切れ端縁の復元を抑えて内容物の取り出しの操作性・安全性に優れ、且つ取り出しの際に計量スプーンから零れ落ちた内容物がオープナーに堆積することなく缶内に良好に戻ることができる内容物取出し操作性・安全性及び品質保持性に優れたレギュラーコーヒー缶の缶蓋開封用のオープナーを提供することを目的とする。   Therefore, the present invention is intended to solve the above-mentioned problems in the opener for opening the can lid of regular coffee cans, and the operability and safety of taking out the contents while suppressing the restoration of the cut edge of the opening edge after opening. Regular coffee with excellent operability, content that has been spilled from the measuring spoon when taken out, and can be returned to the can well without depositing in the opener. An object of the present invention is to provide an opener for opening a can lid of a can.

上記課題を解決する本発明のオープナーは、レギュラーコーヒーを窒素置換充填後に、アルミニウム箔層を含む多層フィルムからなるフィルム部を備えた缶蓋で密封することによって常圧ないし陽圧化された缶体の前記缶蓋を開封するためのオープナーであって、前記缶蓋の前記フィルム部を突き刺し切開及び回転開封することにより略円形状の開口部を該缶蓋に形成するための波状刃を、短円筒である輪状台座の一方の端縁側に円周上に複数枚配設し、前記輪状台座の外径を前記円周上に配設された波状刃の外径よりも大きくとることで回転開封操作後、前記缶蓋上にそのまま載置可能としてなり、前記輪状台座の内径は、前記円周上に配置された波状刃の内径よりも大きく、かつ前記輪状台座と波状刃との内面側接続部にテーパー部が設けられていることを特徴とするものである。   The opener of the present invention that solves the above-mentioned problems is a can body that is made normal pressure or positive pressure by sealing regular coffee with a can lid provided with a film portion made of a multilayer film including an aluminum foil layer after filling with nitrogen. A wavy blade for forming a substantially circular opening in the can lid by piercing the film portion of the can lid and opening and rotating and opening the can lid. A plurality of ring-shaped pedestals that are cylindrical are arranged on one edge side on the circumference, and the outer diameter of the ring-shaped pedestal is made larger than the outer diameter of the wavy blades arranged on the circumference. After the operation, it can be placed on the can lid as it is, and the inner diameter of the annular pedestal is larger than the inner diameter of the corrugated blade disposed on the circumference, and the inner surface side connection between the annular pedestal and the corrugated blade Tapered part is provided on the part And it is characterized in that it is.

上記オープナーにおいて、前記輪状台座の上部に外方向に複数の鍔が形成され、該鍔の外周縁が缶蓋の上部に被冠するオーバーキャップの内周縁と係合できる係合部となっていることが望ましい。また、前記輪状台座外周部と前記波状刃外周部の接続部が段差面となっている構成にすることによって、開封操作後、缶蓋上にオープナーをそのまま安定して載置状態にすることができて望ましい。   In the opener, a plurality of ridges are formed outwardly on the upper portion of the ring-shaped pedestal, and the outer peripheral edge of the ridge is an engagement portion that can engage with the inner peripheral edge of the overcap that covers the upper portion of the can lid. It is desirable. In addition, by adopting a configuration in which the connection portion between the annular pedestal outer peripheral portion and the wavy blade outer peripheral portion is a stepped surface, the opener can be stably placed on the can lid as it is after the opening operation. It is possible and desirable.

請求項1の発明によれば、輪状台座の内径を波状刃の内径よりも大きくとることで、輪状台座の薄肉化が可能となると共に、輪状台座の内径が波状刃の内径より広がっているため、開口部から缶内に計量スプーンなどを入れる際、途中に挿入を邪魔するものがなく、スプーン操作等に対する弊害が少なくなる。また、輪状台座と波状刃との内面側接続部にテーパー部が設けられているので、缶の内容物が内面側接続部の隅にレギュラーコーヒーが付着残留し難くなり、また階段状に接続するよりも強度的に優れているという、格別な効果がある。さらに、輪状台座の外径は波状刃の外径よりも大きくなっているので、回転開封操作後、缶蓋上にそのまま載置可能となり、開口縁の切れ端縁の復元を抑えて内容物の取り出し操作性及び安全性を良好に維持できる。   According to the invention of claim 1, by making the inner diameter of the annular pedestal larger than the inner diameter of the wavy blade, it is possible to make the annular pedestal thinner, and the inner diameter of the annular pedestal is wider than the inner diameter of the wavy blade. When inserting a measuring spoon or the like into the can from the opening, there is nothing in the way that obstructs the insertion, and the adverse effects on the spoon operation and the like are reduced. In addition, since the tapered portion is provided at the inner surface side connection portion between the ring-shaped pedestal and the wavy blade, it becomes difficult for the contents of the can to adhere and remain on the corner of the inner surface side connection portion, and it is connected in a staircase shape. There is a special effect that it is superior in strength. Furthermore, since the outer diameter of the ring-shaped pedestal is larger than the outer diameter of the wavy blade, it can be placed on the can lid as it is after the rotary opening operation, and the restoration of the cut edge of the opening edge is suppressed and the contents are taken out. Good operability and safety can be maintained.

請求項2の発明によれば、輪状台座の上部に外方向に形成された鍔の外周縁がオーバーキャップの内周縁と係合するので、輪状台座内周面に係合凸条を設ける必要がなくなり、輪状台座内径を波状刃の外径より大きくすることができる。また、請求項3の構成によれば、オープナーは開封した状態で缶蓋のカール部に段差面を着座面としてそのまま安定して載置状態にすることができる。   According to the invention of claim 2, since the outer peripheral edge of the collar formed outwardly on the upper part of the ring-shaped pedestal engages with the inner peripheral edge of the overcap, it is necessary to provide an engaging protrusion on the inner peripheral surface of the ring-shaped pedestal. Thus, the inner diameter of the annular pedestal can be made larger than the outer diameter of the wavy blade. According to the third aspect of the present invention, the opener can be stably placed as it is with the stepped surface as the seating surface on the curled portion of the can lid in the opened state.

以下、本発明の実施形態を図面に基づいて詳細に説明する。
図1は、本発明の実施形態に係るオープナーで缶を開封して、そのまま開口部に着座させた状態の断面図であり、図2はその要部拡大図であり、図3はオープナー単体を示し、(a)は平面図、(b)は正面図、(c)は底面図である。また、図4は図3(a)のA−A断面図である。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of a state in which a can is opened with an opener according to an embodiment of the present invention and seated in the opening as it is, FIG. 2 is an enlarged view of the main part, and FIG. (A) is a plan view, (b) is a front view, and (c) is a bottom view. FIG. 4 is a cross-sectional view taken along the line AA in FIG.

本実施形態のオープナー10は、レギュラーコーヒーを窒素置換充填後に密封することによって、常圧ないし陽圧化された缶容器1の缶胴2に巻締された缶蓋3を開封するためのオープナーであって、図5に示すように、缶容器1が未開封状態では缶胴2の上端部に嵌合保持されているオーバーキャップ4内に、後述する波状刃を上向きにして収容保持されている。そして、缶容器1を開封するときに前記オーバーキャップ4を缶容器1から取り外し、且つオーバーキャップ4からオープナー10を取り外して、缶蓋3のフィルム部に波状刃を突き刺してフィルムを切開してその状態で回転させることによって、略円形状に開口するのに適用させるものである。   The opener 10 of this embodiment is an opener for opening the can lid 3 wound around the can body 2 of the can container 1 that has been pressurized to normal pressure or positive pressure by sealing regular coffee after filling with nitrogen. As shown in FIG. 5, when the can container 1 is unopened, it is accommodated and held in an overcap 4 fitted and held at the upper end of the can body 2 with a wavy blade described later facing upward. . When the can container 1 is opened, the overcap 4 is removed from the can container 1, and the opener 10 is removed from the overcap 4, and the film portion of the can lid 3 is pierced with a wavy blade to cut the film. By rotating in a state, it is applied to open in a substantially circular shape.

適用する缶容器1は、缶胴が金属缶であり、レギュラーコーヒーを充填後ヘッドスペースに窒素ガス及び/又は液体窒素を充填してヘッドスペースのガスを窒素置換して缶蓋3を巻締して密封したものであり、内圧が常圧または陽圧化されている。缶蓋3は、図1にその断面を示すように、パネル面5の中央部に同心の円形開口部を有し、外周面部に巻締部6を有する金属板から形成され、前記円形開口部の内周縁は外側にカールしたカール部7となっている。また、前記パネル面5の裏面には、少なくとも前記円形開口部全体を覆うように多層フィルム8が接着または溶着されて一体化されている。したがって、円形開口部の内方は多層フィルムで密封されたフィルム部9となっている。多層フィルムは、アルミニウム箔層を含む合成樹脂フィルムの多層から構成され、ガスバリア性を有し、缶体密封状態でコーヒーの香気が抜けないように密封保護しており、開封に際して前記オープナーの波状刃によって円形開口部の内周に沿って円形状に切り裂き可能となっている。   The can container 1 to be applied is a metal can, and after filling regular coffee, the head space is filled with nitrogen gas and / or liquid nitrogen, the head space gas is replaced with nitrogen, and the can lid 3 is wound. The internal pressure is normal or positive. As shown in FIG. 1, the can lid 3 is formed of a metal plate having a concentric circular opening at the center portion of the panel surface 5 and a winding portion 6 on the outer peripheral surface portion. The inner peripheral edge is a curled portion 7 curled outward. In addition, a multilayer film 8 is bonded or integrated on the back surface of the panel surface 5 so as to cover at least the entire circular opening. Therefore, the inside of the circular opening is a film portion 9 sealed with a multilayer film. The multilayer film is composed of a multilayer of synthetic resin film including an aluminum foil layer, has a gas barrier property, and is hermetically sealed so that the aroma of coffee does not come out in a sealed state of the can body. Thus, it can be cut into a circular shape along the inner periphery of the circular opening.

次に、以上の缶容器に適用される本実施形態のオープナー10の構造をより詳細に説明する。
本実施形態に係るオープナー10は、公知の合成樹脂、好ましくは、ポリ・プロピレンで射出成形法等により一体成形されてなり、短円筒状の輪状台座11を有し、該輪状台座11の一方の端縁に円周状に複数の波状刃12が突出形成されている。該刃状刃12は、山状等の刃先を円筒上に複数配置した全体として刃先が波状となっており、波状刃外周面13は輪状台座外周面14よりも半径方向内方に位置し、缶蓋の開口カール部7の内周面と略接するように配置されている。従って、輪状台座外径E1は、波状刃外径D1よりも大きくE1>D1の関係にある。また、輪状台座内径E2は波状刃内径D2よりも大きくE2>D2の関係にあり、輪状台座内周面15から波状刃内周面16に至る途中には波状刃内周面16の直径よりも径小な部分は存在していない。
Next, the structure of the opener 10 of this embodiment applied to the above can container is demonstrated in detail.
The opener 10 according to the present embodiment is integrally formed of a known synthetic resin, preferably polypropylene by an injection molding method or the like, and has a short cylindrical ring-shaped pedestal 11, and one of the ring-shaped pedestals 11. A plurality of wavy blades 12 are formed in a protruding manner at the end edge. The blade 12 has a wave shape as a whole in which a plurality of blades such as mountain shapes are arranged on a cylinder, and the wavy blade outer peripheral surface 13 is located radially inward from the annular pedestal outer peripheral surface 14. It arrange | positions so that the inner peripheral surface of the opening curl part 7 of a can lid may be touched substantially. Therefore, the ring-shaped pedestal outer diameter E1 is larger than the wavy blade outer diameter D1 and has a relationship of E1> D1. Further, the inner diameter E2 of the annular pedestal is larger than the inner diameter D2 of the corrugated blade, and has a relationship of E2> D2. There is no small diameter part.

輪状台座内周面15と波状刃内周面16の内面側接続部には、図1、2に示すように、テーパー部17が設けられている。一方、輪状台座外周面14と波状刃外周面13との外面側接続部は略水平な段差面18となって、図2に拡大して示すように缶蓋のカール部7の上面と当接するストッパーとなっている。また、波状刃外周面13の上部側には、図2及び図3(b)に示すように、前記段差面18からカール部7のカール直径(丸め込み部分の外径)と略等しいあるいは僅かに長い距離の下方位置に周方向に延びる外側に凸のリブ19が形成されている。該リブ19は、後述するように開封に際して切断されたフィルム部の切断内周縁を外側方向に均すことを可能とし、また、オープナー10が段差面18を座面としてカール部7に着座するときカール部と係合して、開封後にオープナー10が缶蓋から容易に離脱しないように保持する役割を果たす。また、該リブ19は、フィルム部9をオープナー10で回転開封するとき、段差面18と相まってカール部に対してオープナーを回転案内する役割も果たし、安定して回転開封できる。   As shown in FIGS. 1 and 2, a tapered portion 17 is provided at the inner surface side connection portion of the annular pedestal inner peripheral surface 15 and the wavy blade inner peripheral surface 16. On the other hand, the outer surface side connection portion between the ring-shaped pedestal outer peripheral surface 14 and the wavy blade outer peripheral surface 13 forms a substantially horizontal stepped surface 18 and abuts the upper surface of the curl portion 7 of the can lid as shown in an enlarged view in FIG. It is a stopper. Further, on the upper side of the wavy blade outer peripheral surface 13, as shown in FIGS. 2 and 3 (b), the curl diameter of the curled portion 7 from the stepped surface 18 (the outer diameter of the rounded portion) is slightly equal or slightly. An outwardly protruding rib 19 is formed at a lower position at a long distance and extending in the circumferential direction. As will be described later, the rib 19 makes it possible to level the cut inner peripheral edge of the film portion cut at the time of opening outward, and when the opener 10 is seated on the curled portion 7 with the stepped surface 18 as a seating surface. It engages with the curl portion and serves to hold the opener 10 from being easily detached from the can lid after opening. Further, when the film portion 9 is rotated and unsealed by the opener 10, the rib 19 also plays a role of rotating and guiding the opener to the curled portion together with the stepped surface 18, and can be stably rotated and unsealed.

輪状台座11の上端外周部には、再封時に後述するオーバーキャップ4の天壁から垂下する環状壁35の下端面が当接して開口部を密封するための当接フランジ20が環状に突出形成されている(図6参照)。該当接フランジ20は、前記環状壁が当接できる径方向幅を有しておればよく、該条件を満たして材料の節約上幅狭に形成されている。そして、当接フランジの外周部には、外方に伸びる鍔21を所定間隔に複数個、図示の実施形態では120゜間隔で3個配置されている。該鍔21は、開封前の流通段階ではその外周縁22がオーバーキャップのスカート壁内周面に形成された第一内方突起32に係止され、オープナー10をオーバーキャップ内に保持する役割と、開封時にフィルム部を突き刺し切開及び回転開封するときに指で押さえ易く、また、掛け易くすることで開封し易くする役割を果たすために設けられたものである。鍔21は、本実施形態では、オーバーキャップ内への収納時にその外周縁がオーバーキャップ4の第一内方突起32に係止される位置にくるようにするために、あるいは、弾性変形により鍔21の外周縁がオーバーキャップ4の前記第一内方突起に係止され易いようにするために、またあるいは、オープナー10を缶蓋3の開口部(カール部7)に着座させ用いる際に外周端縁22を下方へ位置させて収まりがよくなるように、図1、2に示すように、途中から当接フランジ20の面から下方に段差状に垂下してその下端縁を再び水平方向外方に屈曲して形成しているが、形状は特に限定されない。   At the outer periphery of the upper end of the ring-shaped pedestal 11, a contact flange 20 is formed so as to project in an annular shape so that a lower end surface of an annular wall 35 that hangs down from the top wall of the overcap 4, which will be described later. (See FIG. 6). The abutting flange 20 only needs to have a radial width with which the annular wall can abut. The abutting flange 20 satisfies the condition and is formed with a narrow width in order to save material. A plurality of flanges 21 extending outward are arranged at predetermined intervals on the outer peripheral portion of the contact flange, and three at intervals of 120 ° in the illustrated embodiment. In the distribution stage before opening, the outer peripheral edge 22 is locked to the first inner protrusion 32 formed on the inner peripheral surface of the skirt wall of the overcap to hold the opener 10 in the overcap. It is provided to play the role of making it easy to press with a finger when opening and rotating and unsealing the film part at the time of opening, and to make it easier to hang by opening. In this embodiment, the flange 21 is arranged so that its outer peripheral edge is located at a position where it is locked to the first inward protrusion 32 of the overcap 4 when housed in the overcap, or by elastic deformation. 21 so that the outer peripheral edge of the outer cap 21 can be easily locked to the first inward projection of the overcap 4 or when the opener 10 is seated on the opening (curl portion 7) of the can lid 3 and used. As shown in FIGS. 1 and 2, the end edge 22 is lowered downward from the surface of the abutting flange 20 in a stepwise manner so that the end edge 22 is positioned downward, and the lower end edge of the end edge 22 is moved outward in the horizontal direction again. However, the shape is not particularly limited.

オーバーキャップ4は、公知の合成樹脂、好ましくは、ポリ・プロピレンで射出成形法等により一体成形され、図5、6に示されているように、天壁30の外周から下方に延びるスカート壁31を有し、該スカート壁31は垂直壁部の下方に未開封状態でオープナー10の外周縁22が係止する第一内方突起32を有している。また、内方突起32の上方は、外周縁22が適度に嵌め込まれるような幅,深さを備えた周溝状になっている。スカート壁31の下方部は段差状に径大となって缶体2への嵌合壁33となっており、その内周部には缶体の巻締部に係合する第二内方突起34が形成され、その上方は巻締部6が適度に嵌め込まれるような幅,深さを備えた周溝状になっている。また、天壁30の下面から環状壁35が垂下して形成され、その下端縁が再封時にオープナーの当接フランジ20と当接できるようになっている。   The overcap 4 is integrally formed of a known synthetic resin, preferably polypropylene by an injection molding method or the like, and as shown in FIGS. 5 and 6, a skirt wall 31 extending downward from the outer periphery of the top wall 30. The skirt wall 31 has a first inward protrusion 32 which is engaged with the outer peripheral edge 22 of the opener 10 in an unopened state below the vertical wall portion. Further, the upper part of the inward protrusion 32 has a circumferential groove shape having a width and a depth so that the outer peripheral edge 22 is appropriately fitted. The lower portion of the skirt wall 31 has a stepped diameter and becomes a fitting wall 33 to the can body 2, and a second inward projection that engages with the winding portion of the can body on the inner peripheral portion thereof 34 is formed, and the upper part thereof is in the shape of a circumferential groove having a width and a depth so that the winding tightening portion 6 can be appropriately fitted. In addition, an annular wall 35 is formed to hang from the lower surface of the top wall 30 and its lower end edge can come into contact with the contact flange 20 of the opener at the time of resealing.

本実施形態の缶容器は、以上のように形成され、未開封の状態では、図5に示すように、オープナー10は波状刃12を上向きにしてオーバーキャップ4に押し込むことによって、外周縁22がスカート壁31の第一内方突起32を乗り越え、オーバーキャップ4に係止して収納され、その状態でオーバーキャップ4は缶体の上部外周部に押し込むことによって、嵌合壁33に形成されている第二内方突起34が巻締部6を乗り越え、缶蓋3(缶体2の上部)と係合し保持される。   The can container of the present embodiment is formed as described above, and in an unopened state, as shown in FIG. 5, the opener 10 is pushed into the overcap 4 with the wavy blade 12 facing upward so that the outer peripheral edge 22 is Over the first inward protrusion 32 of the skirt wall 31 and locked and accommodated in the overcap 4, in this state, the overcap 4 is formed on the fitting wall 33 by being pushed into the upper outer periphery of the can body. The second inward projection 34 that has passed over the tightening portion 6 is engaged with and held by the can lid 3 (upper portion of the can body 2).

開封するには、オーバーキャップ4を缶体から引き上げて取り外し、かつオーバーキャップ内からオープナー10を取り外し、オープナー10を片手に持って波状刃12を下向きにして、フィルム部9に押し込むことによって、波状刃12が多層フィルムを突き刺し、フィルム部9にカール部内周面に沿って輪状に既切部と未切部が交互に配置された状態に初期切開を行なう。缶容器が陽圧の場合、初期切開で容器内のガスが缶内から抜ける。その際、既切部にはフィルムの切開片が下側に折り返され且つ切刃が刺さった状態にあるので、コーヒー粉が噴出することはなく、ガスのみが抜け安全に開口できる。   To open, the overcap 4 is pulled up and removed from the can body, and the opener 10 is removed from the overcap, the opener 10 is held in one hand, the wavy blade 12 is directed downward, and the film portion 9 is pushed into the wavy shape. The blade 12 pierces the multilayer film, and an initial incision is performed in a state where the cut portions and the uncut portions are alternately arranged in a ring shape along the inner peripheral surface of the curl portion. When the can container is at a positive pressure, the gas in the container escapes from the can at the initial incision. At that time, since the cut piece of the film is folded downward and the cutting blade is stuck in the already cut portion, the coffee powder is not ejected, and only the gas can escape and can be safely opened.

その状態では、輪状台座11と波状刃の外面側接続部に形成されている段差面18が缶蓋のカール部7に当たりストッパーとなり、かつ波状刃外周面に形成されているリブ19が波状刃が弾性変形することにより、カール部外周面を乗り越え、カール部7が段差面18とリブ19との間に位置し、オープナー10の周方向回転は自由であるが、上方へ抜くのに抵抗を与え、オープナーを缶蓋に係合保持される。その状態で回転させることによって、波状刃がフィルム部をカール部内周縁に沿って円形に切断し、完全に切断されたら円形切片を取り除くことによって、完全に開封され、円形開口部から内容物であるレギュラーコーヒーの取り出しが可能となる。   In this state, the stepped surface 18 formed on the outer surface side connecting portion of the ring-shaped base 11 and the wavy blade hits the curled portion 7 of the can lid and becomes a stopper, and the rib 19 formed on the outer peripheral surface of the wavy blade is the wavy blade. By elastically deforming, the curl part gets over the outer peripheral surface, the curl part 7 is located between the stepped surface 18 and the rib 19, and the opener 10 can freely rotate in the circumferential direction, but gives resistance to pulling upward. The opener is held engaged with the can lid. By rotating in this state, the wavy blade cuts the film part into a circle along the inner periphery of the curl part, and when completely cut, removes the circular piece to completely open the contents from the circular opening. Regular coffee can be taken out.

以上詳細に説明したように、本発明では輪状台座の内径E2を波状刃内径D2より大きくとることで、輪状台座の薄肉化が可能となると共に、開口部から缶内に計量スプーンなどを輪状台座越しに入れる際、輪状台座の内径が波状刃の内径より広がっているため、スプーンなどの操作の弊害が少なくなり、内容物の取り出しが容易となる。また、輪状台座と波状刃との内面側接続部にテーパー部17が設けられているので、缶の内容物が内面側接続部の隅に残りにくくなるという効果もある。また、接続部をテーパー部にすることによって階段状に接続することより、強度的にも優れていると共に、成形後の型抜きも容易となるなどの利点がある。   As described above in detail, in the present invention, the ring-shaped pedestal can be made thinner by making the inner diameter E2 of the annular pedestal larger than the corrugated blade inner diameter D2, and a measuring spoon or the like can be inserted into the can from the opening. When passing over, the inner diameter of the ring-shaped pedestal is wider than the inner diameter of the wavy blade, so that the adverse effect of the operation of the spoon or the like is reduced, and the contents can be easily taken out. Moreover, since the taper part 17 is provided in the inner surface side connection part of a ring-shaped base and a wavy blade, there also exists an effect that the content of a can becomes difficult to remain in the corner of an inner surface side connection part. Further, by connecting the connecting portion in a stepped manner by using a tapered portion, there are advantages in that it is excellent in strength and can be easily removed after molding.

本発明は、レギュラーコーヒーを窒素置換して常圧乃至陽圧化されて充填され、フィルム部を有する缶蓋で密封された缶容器用のオープナーとして最適であり、且つ開封後もそのまま缶蓋に装着して開口部内周縁から突出する切れ端縁を覆い内容物の取り出し時に切れ端縁があたらない、あるいは、あたりにくくするための保護治具としても有用である。   INDUSTRIAL APPLICABILITY The present invention is suitable as an opener for a can container that is filled with normal coffee or positive pressure by replacing regular coffee with nitrogen and sealed with a can lid having a film portion, and can be used as it is even after opening. It is also useful as a protective jig for covering the cut edge that is mounted and protruding from the inner peripheral edge of the opening so that the cut edge does not hit or is difficult to hit when the contents are taken out.

本発明の実施形態に係るオープナーを缶開封後そのまま開口部に着座させた状態の断面図である。It is sectional drawing of the state which made the opener which concerns on embodiment of this invention sit in the opening part as it is after opening a can. 図1の要部拡大図である。It is a principal part enlarged view of FIG. 本発明の実施形態に係るオープナーを刃先を上にした状態を示し、(a)は平面図、(b)は正面図、(c)は底面図である。The state which made the blade edge | side up the opener which concerns on embodiment of this invention is shown, (a) is a top view, (b) is a front view, (c) is a bottom view. 図3(a)のA−A断面図である。It is AA sectional drawing of Fig.3 (a). 本発明の実施形態に係るオープナーを装着した未開封流通段階における缶容器の正面断面図である。It is front sectional drawing of the can container in the unopened distribution | circulation stage equipped with the opener which concerns on embodiment of this invention. その開封後の再封状態における要部断面図である。It is principal part sectional drawing in the resealed state after the opening. 開封後の缶体に本発明の実施形態に係るオープナーを装着した状態を示し、(a)はその平面図、(b)はその要部正面図である。The state which attached the opener which concerns on embodiment of this invention to the can after opening is shown, (a) is the top view, (b) is the principal part front view. 従来のオープナーを示し、(a)は正面左半分断面図、(b)はオーバーキャップに装着した状態での正面断面図である。The conventional opener is shown, (a) is a front left half sectional view, (b) is a front sectional view in a state where it is mounted on an overcap.

符号の説明Explanation of symbols

1 缶容器 2 缶胴
3 缶蓋 4 オーバーキャップ
5 パネル面 6 巻締部
7 カール部 8 多層フィルム
9 フィルム部 10 オープナー
11 輪状台座 12 波状刃
13 波状刃外周面 14 輪状台座外周面
15 輪状台座内周面 16 波状刃内周面
17 テーパー部 18 段差面
19 リブ 20 当接フランジ
21 鍔 22 外周端縁
30 天壁 31 スカート壁
32 第一内方突起 33 第二内方突起
34 係合突起 35 環状壁
DESCRIPTION OF SYMBOLS 1 Can container 2 Can trunk 3 Can lid 4 Overcap 5 Panel surface 6 Winding part 7 Curled part 8 Multilayer film 9 Film part 10 Opener 11 Ring-shaped base 12 Wave-shaped blade 13 Wave-shaped blade outer peripheral surface 14 Ring-shaped base outer peripheral surface 15 In the ring-shaped base Peripheral surface 16 Wavy blade inner peripheral surface 17 Tapered portion 18 Stepped surface 19 Rib 20 Abutting flange 21 22 22 Outer peripheral edge 30 Top wall 31 Skirt wall 32 First inward projection 33 Second inward projection 34 Engagement projection 35 Ring wall

Claims (3)

レギュラーコーヒーを窒素置換充填後に、アルミニウム箔層を含む多層フィルムからなるフィルム部を備えた缶蓋で密封することによって常圧ないし陽圧化された缶体の前記缶蓋を開封するためのオープナーであって、
前記缶蓋の前記フィルム部を突き刺し切開及び回転開封することにより略円形状の開口部を該缶蓋に形成するための波状刃を、
短円筒である輪状台座の一方の端縁側に円周上に複数枚配設し、前記輪状台座の外径を前記円周上に配設された波状刃の外径よりも大きくとることで回転開封操作後、前記缶蓋上にそのまま載置可能としてなり、
前記輪状台座の内径は、前記円周上に配置された波状刃の内径よりも大きく、かつ前記輪状台座と波状刃との内面側接続部にテーパー部が設けられていることを特徴とするオープナー。
An opener for opening the can lid of normal or positive pressure can body by sealing regular coffee with nitrogen can and then sealing with a can lid having a film part made of a multilayer film including an aluminum foil layer. There,
A wavy blade for forming a substantially circular opening in the can lid by piercing the film portion of the can lid and incising and rotating unsealing,
A plurality of circular pedestals, which are short cylinders, are arranged on the circumference of one edge, and the outer diameter of the annular pedestal is set to be larger than the outer diameter of the wavy blades arranged on the circumference. After the opening operation, it can be placed on the can lid as it is,
An opener characterized in that an inner diameter of the ring-shaped pedestal is larger than an inner diameter of a wave-shaped blade disposed on the circumference, and a tapered portion is provided at an inner surface side connection portion between the ring-shaped pedestal and the wave-shaped blade. .
前記輪状台座の上部に外方向に複数の鍔が形成され、該鍔の外周縁が缶蓋の上部に被冠するオーバーキャップのスカート壁内周縁と係合する係合部となっている請求項1に記載のオープナー。   A plurality of ridges are formed outwardly on the upper portion of the ring-shaped pedestal, and the outer peripheral edge of the ridges is an engaging portion that engages with the inner peripheral edge of the skirt wall of the overcap that covers the upper portion of the can lid. The opener according to 1. 前記輪状台座外周部と前記波状刃外周部の接続部が段差面となっている請求項1又は2に記載のオープナー。   The opener according to claim 1 or 2, wherein a connection portion between the outer peripheral portion of the annular base and the outer peripheral portion of the wavy blade is a step surface.
JP2008192721A 2008-07-25 2008-07-25 opener Expired - Fee Related JP5179985B2 (en)

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