JP4295258B2 - Bottle cap - Google Patents

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JP4295258B2
JP4295258B2 JP2005259064A JP2005259064A JP4295258B2 JP 4295258 B2 JP4295258 B2 JP 4295258B2 JP 2005259064 A JP2005259064 A JP 2005259064A JP 2005259064 A JP2005259064 A JP 2005259064A JP 4295258 B2 JP4295258 B2 JP 4295258B2
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cap
outer cylinder
annular
cylinder
bottle
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JP2007069952A (en
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正行 牧田
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正行 牧田
株式会社ビーゼットアイ
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Description

本発明は、粉末状又は液状の原料を収容する原料収容部を有し、開栓操作に伴い原料収容部の底蓋を脱落させて原料をボトル内に放出するボトルキャップに関する。   The present invention relates to a bottle cap that has a raw material container that contains a powdery or liquid raw material, and that releases the raw material into a bottle by dropping the bottom cover of the raw material container in accordance with the opening operation.

本発明者は、この種のボトルキャップとして、特開2005−88997号公報に開示されたものを既に提供している。
このボトルキャップは、ボトルの口部に挿入する外筒を備えた親キャップと、その外筒に挿入して原料収納部となる内筒を備えた子キャップと、その内筒の下端開口を封止する底蓋とからなり、親キャップをボトルの口部に被せるとともに、子キャップを親キャップの外筒に螺合させることにより、該外筒の上端開口とともにボトルの口部を封止でき、また子キャップを親キャップの外筒に対し開く方向に回すことにより、底蓋が親キャップの外筒によって内筒から脱落され、内筒内の原料がボトル内に放出されるボトルキャップであって、底蓋の周縁に、内筒の下端部を環状凹溝に圧入させることができる環状凹部を一体に形成するとともに、この環状凹部よりも軟質な材質の内側パッキンを、環状凹部との同時成形により環状凹溝の内面に一体的に設けている。
The present inventor has already provided a bottle cap of this type disclosed in Japanese Patent Application Laid-Open No. 2005-88997.
This bottle cap seals a parent cap having an outer cylinder to be inserted into the mouth of the bottle, a child cap having an inner cylinder to be inserted into the outer cylinder and serving as a raw material storage section, and a lower end opening of the inner cylinder. It consists of a bottom lid that stops, covers the parent cap on the mouth of the bottle, and by screwing the child cap onto the outer cylinder of the parent cap, the mouth of the bottle can be sealed together with the upper end opening of the outer cylinder, Further, the bottle cap is a bottle cap in which the bottom cap is removed from the inner cylinder by the outer cylinder of the parent cap by rotating the child cap in the opening direction with respect to the outer cylinder of the parent cap, and the raw material in the inner cylinder is discharged into the bottle. An annular recess that can press-fit the lower end of the inner cylinder into the annular groove is integrally formed on the periphery of the bottom lid, and an inner packing made of a softer material than the annular recess is formed simultaneously with the annular recess. Due to the inner surface of the annular groove It is provided integrally.

この先行技術は、内筒の下端開口を底蓋で封止したとき、環状凹部の環状凹溝に子キャップの内筒の下端部が圧入しているのに加え、更に、環状凹溝内において、内側パッキンが圧縮された状態で内筒の下端開口縁に密着することでシール性を高めたものである。   In this prior art, when the lower end opening of the inner cylinder is sealed with the bottom cover, the lower end of the inner cylinder of the child cap is press-fitted into the annular groove of the annular recess, and further, in the annular groove The sealing performance is improved by closely contacting the lower end opening edge of the inner cylinder in a state where the inner packing is compressed.

しかし、このようにしても、内筒の下端開口に対する底蓋による気密性及び水密性が万全ではなく、内筒に収容された原料が、ボトル本体内の液体により次第に湿気を含んで変質することが避けられなかった。
特開2005−88997号公報
However, even in this case, the airtightness and watertightness by the bottom lid with respect to the lower end opening of the inner cylinder are not perfect, and the raw material stored in the inner cylinder gradually changes in quality due to the liquid in the bottle body. Was inevitable.
JP 2005-88997 A

本発明の課題は、内筒の下端開口に対する底蓋のシール性を更に改善して、気密性及び水密性を万全な状態にまで向上させると同時に、外筒の下端開口もシールして内筒と外筒の間への液浸入も防止することにある。   The object of the present invention is to further improve the sealing performance of the bottom lid with respect to the lower end opening of the inner cylinder to improve the airtightness and watertightness to a perfect state, and at the same time, also seal the lower end opening of the outer cylinder to seal the inner cylinder. It is also intended to prevent liquid from entering between the outer cylinder and the outer cylinder.

本発明は、上記の先行技術におけるシール構造、すなわち、底蓋の環状凹部の環状凹溝に子キャップの内筒の下端部が圧入するとともに、環状凹溝内において内側パッキンが圧縮された状態で内筒の下端開口縁に密着する内側のシール構造に加え、更に、環状凹部よりも軟質な材質の外側パッキンを、環状凹部との同時成形により環状凹部の外周上縁に一体的に設け、この外側パッキンに外筒の下端開口縁が当接して、底蓋の環状凹部の外側でもシールする外側のシール構造を付加することで、気密性及び水密性を一層向上させるとともに、外側のシール構造によってまた、外筒の下端開口もシールして内筒と外筒の間への液浸入を防止できるようにしたものである。   The present invention provides a sealing structure according to the above prior art, that is, in a state where the lower end portion of the inner cylinder of the child cap is press-fitted into the annular groove of the annular recess of the bottom cover and the inner packing is compressed in the annular groove. In addition to the inner seal structure that is in close contact with the lower end opening edge of the inner cylinder, an outer packing made of a material softer than the annular recess is provided integrally on the outer peripheral upper edge of the annular recess by simultaneous molding with the annular recess. By adding an outer seal structure that seals the outer packing at the lower end opening edge of the outer cylinder and seals even outside the annular recess of the bottom lid, the air tightness and water tightness are further improved. Also, the lower end opening of the outer cylinder is sealed so that liquid intrusion between the inner cylinder and the outer cylinder can be prevented.

環状凹部の外周上縁と外筒の下端開口縁とを、内周から外周へ向かって下向きに傾斜させると、外側パッキンによるシール性が高まる。その傾斜角度は、約20度とするのが最適である。   When the outer peripheral upper edge of the annular recess and the lower end opening edge of the outer cylinder are inclined downward from the inner periphery toward the outer periphery, the sealing performance by the outer packing is enhanced. The inclination angle is optimally about 20 degrees.

更に、外筒の下端開口縁に続くその上側の内周面が内筒の外周面と密着するようにすると、内筒と外筒との間への液浸入防止効果が一層向上する。   Furthermore, when the upper inner peripheral surface following the lower end opening edge of the outer cylinder is in close contact with the outer peripheral surface of the inner cylinder, the effect of preventing liquid from entering between the inner cylinder and the outer cylinder is further improved.

本発明は、底蓋の環状凹部の外周上縁に、軟質な材質の外側パッキンを同時成形により設け、この外側パッキンに外筒の下端開口縁を当接させて、底蓋の環状凹部の外側でもパッキンシールを行うので、環状凹部の環状凹溝内での内側のシール構造とで内外二重にシールすることができ、内筒の下端開口に対する底蓋による気密性及び水密性を万全な状態にまで向上させることができる。また、外筒の下端開口もシールして内筒と外筒の間への液浸入を防止できる。   In the present invention, an outer packing made of a soft material is provided at the outer peripheral upper edge of the annular recess of the bottom lid by simultaneous molding, and the lower end opening edge of the outer cylinder is brought into contact with the outer packing, so that the outer side of the annular recess of the bottom lid However, since the packing seal is performed, it is possible to seal both inside and outside with the inner seal structure inside the annular groove of the annular recess, and the airtightness and watertightness by the bottom lid to the lower end opening of the inner cylinder are fully sealed Can be improved. In addition, the lower end opening of the outer cylinder can be sealed to prevent liquid from entering between the inner cylinder and the outer cylinder.

次に、本発明の実施例を図面に基づいて詳細に説明する。   Next, embodiments of the present invention will be described in detail with reference to the drawings.

このボトルキャップも、図1に示すように、それぞれ樹脂成型された親キャップ1と子キャップ2と底蓋3とからなる。   As shown in FIG. 1, this bottle cap also includes a parent cap 1, a child cap 2, and a bottom lid 3 that are molded with resin.

親キャップ1は、ペットボトル等のボトル50(図4に鎖線で示す)の口部50aに被せるキャップ本体5に、上下両端が開口した外筒6を一体に設けている。外筒6は、キャップ本体5の頂部5aを上下に一体に貫通しており、頂部5aより上側に突出した上部は、上端が開口する口部6aとなり、また頂部5aより下側に突出した下部は、キャップ本体5の胴部5bとの間に間隙5fを形成しながらその下端よりも下方に垂下して下端が開口する垂下筒部6bとなっている。この垂下筒部6bは、頂部5aの近くで細くなってから、下端開口に向かって徐々に先細となっている。また、頂部5aの下面には、先端縁(下端縁)が尖鋭な環状歯部5gが間隙5f内において一体に突出形成されている。   The parent cap 1 is integrally provided with an outer cylinder 6 whose upper and lower ends are opened on a cap body 5 that covers a mouth portion 50a of a bottle 50 (shown by a chain line in FIG. 4) such as a PET bottle. The outer cylinder 6 integrally penetrates the top part 5a of the cap body 5 vertically, and the upper part protruding upward from the top part 5a becomes a mouth part 6a whose upper end is open, and the lower part protruding downward from the top part 5a. Is a hanging cylinder portion 6b that hangs downward from its lower end and opens at its lower end while forming a gap 5f with the body portion 5b of the cap body 5. The drooping cylinder portion 6b becomes narrower near the top portion 5a and then gradually tapers toward the lower end opening. Further, an annular tooth portion 5g having a sharp tip edge (lower edge) is integrally formed on the lower surface of the top portion 5a so as to protrude in the gap 5f.

外筒6の口部6aの外周面には、雄ネジ6dの終端とキャップ本体5の頂部5aとの間に、環状の抜け止め部6eが一体に設けられている。外筒6の内周面の下端部には、その肉厚を部分的に厚くする環状の内面突部6fが外筒6の下端開口縁6gまで形成されている。この下端開口縁6gは、内周から外周へ向かって下向きに傾斜しており、図3に示すようにその角度θは約20度である。   On the outer peripheral surface of the mouth portion 6a of the outer cylinder 6, an annular retaining portion 6e is integrally provided between the end of the male screw 6d and the top portion 5a of the cap body 5. At the lower end portion of the inner peripheral surface of the outer cylinder 6, an annular inner surface protrusion 6 f that partially increases the thickness is formed up to the lower end opening edge 6 g of the outer cylinder 6. The lower end opening edge 6g is inclined downward from the inner periphery toward the outer periphery, and the angle θ is about 20 degrees as shown in FIG.

キャップ本体5の胴部5bの内周面の下端部に、円周方向に長い複数のロック突部5eが一体に突出形成されている。また、キャップ本体5の胴部5bの内周面には、ボトル50の口部50aの雄ネジ50bと螺合する雌ネジ5cが形成され、外筒6の口部6aの外周面には雄ネジ6dが形成されている。胴部5bの外周面には、指を掛けて開ける際の滑り止め用ローレット5dが刻設されている。   A plurality of locking protrusions 5e that are long in the circumferential direction are integrally formed at the lower end portion of the inner peripheral surface of the body 5b of the cap body 5. A female screw 5c is formed on the inner peripheral surface of the body portion 5b of the cap body 5 to be screwed with the male screw 50b of the mouth portion 50a of the bottle 50. A male screw 5c is formed on the outer peripheral surface of the mouth portion 6a of the outer cylinder 6. A screw 6d is formed. An anti-slip knurl 5d is formed on the outer peripheral surface of the body portion 5b when the finger is put on it.

子キャップ2は、原料及び圧力気体充填部(カプセル)となる内筒9を、キャップ本体8の頂部8aの下面から一体に突設するとともに、この内筒9の外周の至近位置において、肉薄の短い密閉リング10を下向きに一体に突設している。内筒9は、キャップ本体8の胴部8bとの間に隙間を形成しながらそれよりもはるかに長く突出している。   The child cap 2 integrally protrudes from the lower surface of the top portion 8a of the cap body 8 with the inner cylinder 9 serving as a raw material and pressurized gas filling section (capsule), and is thin at a position close to the outer periphery of the inner cylinder 9. A short sealing ring 10 is integrally projected downward. The inner cylinder 9 protrudes much longer than that while forming a gap with the body portion 8b of the cap body 8.

このように下端のみ開口した内筒9は、外筒6よりも径がやや小さく、図2に示すように、外筒6との間に僅かな隙間7を形成して挿入できるようになっているが、長さは外筒6よりも若干長くなっている。内筒9の下端は外側に膨らむ突縁9aとなっているとともに、この突縁9aに続くその上側の外周面に、浅い環状凹溝9bを形成している。   Thus, the inner cylinder 9 which is open only at the lower end is slightly smaller in diameter than the outer cylinder 6 and can be inserted with a slight gap 7 formed between the inner cylinder 9 and the outer cylinder 6 as shown in FIG. However, the length is slightly longer than the outer cylinder 6. The lower end of the inner cylinder 9 is a protruding edge 9a that bulges outward, and a shallow annular groove 9b is formed on the upper outer peripheral surface following the protruding edge 9a.

子キャップ2の胴部8bの内周面には、外筒6の口部6aの雄ネジ6dと螺合する雌ネジ8eが形成されている。胴部8bの外周面には、指を掛けて開ける際の滑り止め用ローレット8fが刻設され、また頂部8aの上面には、開く方向と閉まる方向とを指示する矢印8gが浮き出し形成されている。   On the inner peripheral surface of the body portion 8b of the child cap 2, a female screw 8e that is screwed with the male screw 6d of the mouth portion 6a of the outer cylinder 6 is formed. An anti-slip knurl 8f is formed on the outer peripheral surface of the body portion 8b, and an arrow 8g is formed on the top surface of the top portion 8a so as to indicate an opening direction and a closing direction. Yes.

また、子キャップ2の胴部8bの下周縁には、子キャップ2と一体成形した環状のバンド部13が分離可能に部分的に連結して付設されている。すなわち、子キャップ2の胴部8bとバンド部13とは、小さな連結部であるブリッジ14で僅かに一体に連結されているだけで、このブリッジ14が切断すると分離するようになっている。また、子キャップ2の胴部8bの下周縁には凹部15a、バンド部13には凸部15bがそれぞれ複数個所に設けられ、これら凹部15aと凸部15bとは互いに嵌合している。なお、これら凹部15aと凸部15bがブリッジ14を兼ねるように、これらの嵌合部分で子キャップ2の胴部8bとバンド部13とを一体に連結してもよい。   Further, an annular band portion 13 integrally formed with the child cap 2 is attached to the lower peripheral edge of the body portion 8b of the child cap 2 so as to be separated and partially connected thereto. That is, the trunk portion 8b and the band portion 13 of the child cap 2 are only slightly connected together by a bridge 14 which is a small connecting portion, and are separated when the bridge 14 is cut. In addition, a concave portion 15a is provided at the lower peripheral edge of the body portion 8b of the child cap 2, and a convex portion 15b is provided at a plurality of locations on the band portion 13, respectively. The concave portion 15a and the convex portion 15b are fitted to each other. In addition, you may connect the trunk | drum 8b and the band part 13 of the child cap 2 integrally by these fitting parts so that these recessed parts 15a and the convex parts 15b may serve as the bridge | bridging 14. FIG.

底蓋3は、上面が凸面、下面が凹面となる押込部3aと、該押込部3aの周縁とで断面逆Ω状の環状凹溝3bを形成する環状凹部3cと、押込部3aの凹面となっている下面の中央から下向きに突出する突起3dとを一体成型している。この突起3dの先端面(下端面)は円弧状に窪む凹面3gとなっている。   The bottom cover 3 includes a pressing portion 3a having a convex upper surface and a concave lower surface, an annular recess 3c that forms an annular groove 3b having a reverse Ω-shaped cross section with the periphery of the pressing portion 3a, and a concave surface of the pressing portion 3a. A protrusion 3d protruding downward from the center of the lower surface is integrally formed. The front end surface (lower end surface) of the protrusion 3d is a concave surface 3g that is recessed in an arc shape.

環状凹溝3b内の底面には、環状凹部3cよりも軟質な材質、例えばシリコンゴムやポリプロピレン等による環状の内側パッキン12Aが、環状凹部3cとの同時成形により一体的に設けられている。   An annular inner packing 12A made of a material softer than the annular recess 3c, such as silicon rubber or polypropylene, is integrally provided on the bottom surface in the annular recess 3b by simultaneous molding with the annular recess 3c.

また、環状凹部3cの環状の外周上縁3fは、内側に膨らむ突縁3eを有するとともに、外筒6の下端開口縁6gと同様に、内周から外周へ向かって下向きに傾斜しており、その角度は同じく約20度である。そして、この外周上縁3fに、内側パッキン12Aと同じ材質の環状の外側パッキン12Bが、環状凹部3cとの同時成形により一体的に設けられている。   In addition, the annular outer peripheral upper edge 3f of the annular recess 3c has a protruding edge 3e that swells inward, and, like the lower end opening edge 6g of the outer cylinder 6, is inclined downward from the inner periphery toward the outer periphery, The angle is also about 20 degrees. An annular outer packing 12B made of the same material as the inner packing 12A is integrally provided on the outer peripheral upper edge 3f by simultaneous molding with the annular recess 3c.

一方、図4に示すようにボトル50の口部50aの外周面には、雄ネジ50bと補強鍔部50cとの間においてロック鍔部50dが一体に突出形成されている。   On the other hand, as shown in FIG. 4, on the outer peripheral surface of the mouth part 50a of the bottle 50, a lock hook part 50d is integrally formed between the male screw 50b and the reinforcing hook part 50c.

このような構成とした本実施例は次のような組み立て状態となる。
親キャップ1と子キャップ2との組み立てでは、図2に示すように、子キャップ2の雌ネジ8eを親キャップ1の雄ネジ6dに螺合させ、更に環状のバンド部13が抜け止め部6eを強制的に越えるところまで子キャップ2を外筒6の口部6aに被せると、口部6aが気密かつ水密に封止される。このとき、子キャップ2は、そのバンド部13が抜け止め部6eにより抜け止めされるとともに、内筒9の下端部が、外筒6の垂下筒部6bの下端開口から突出し、外筒6の内面下端部の内面突部6fが内筒9の外周面に密着する。更に、密閉リング10が外筒6の口部6a内に圧入するとともに、子キャップ2の頂部8aが外筒6の上端に圧接し、密閉リング10が子キャップ2の胴部8bの角部とで外筒6の口部6aを内外から挟持する状態となる。
The present embodiment having such a configuration is in an assembled state as follows.
In the assembly of the parent cap 1 and the child cap 2, as shown in FIG. 2, the female screw 8e of the child cap 2 is screwed into the male screw 6d of the parent cap 1, and the annular band 13 is further prevented from coming off. When the child cap 2 is put on the mouth portion 6a of the outer cylinder 6 until it is forcibly exceeded, the mouth portion 6a is hermetically and watertightly sealed. At this time, the band portion 13 of the child cap 2 is prevented from being removed by the retaining portion 6 e, and the lower end portion of the inner cylinder 9 projects from the lower end opening of the hanging cylinder portion 6 b of the outer cylinder 6. The inner surface protrusion 6 f at the lower end of the inner surface is in close contact with the outer peripheral surface of the inner cylinder 9. Further, the sealing ring 10 is press-fitted into the mouth portion 6 a of the outer cylinder 6, the top portion 8 a of the child cap 2 is pressed against the upper end of the outer tube 6, and the sealing ring 10 is connected to the corner portion of the trunk portion 8 b of the child cap 2. Thus, the mouth portion 6a of the outer cylinder 6 is clamped from inside and outside.

子キャップ2と底蓋3との組み立てでは、図3に示すように、底蓋3の環状凹部3cの断面逆Ω状の環状凹溝3bと、子キャップ2の内筒9の下端の膨らんだ突縁9eとを強制的に嵌合させ、内筒9の下端開口縁9cで内側パッキン12Aを圧縮させる。そうすると、内筒6の下端開口縁9cが、内側パッキン12Aを圧縮させたまま、内筒9の突縁9aが断面逆Ω状の環状凹溝3に圧入した状態となるとともに、底蓋3の内側に膨らんだ突縁3eが、内筒9の外周面の環状凹溝9b内に一部を突入させて、内筒9の突縁9aと上下に圧接するので、内筒9の下端開口に対する底蓋3による閉塞は、シール性が非常に高く、内筒9に圧力気体が封入されても、その気密性を充分に確保できる。   In the assembly of the child cap 2 and the bottom lid 3, as shown in FIG. 3, the annular concave groove 3 b having a reverse Ω cross section of the annular concave portion 3 c of the bottom lid 3 and the lower end of the inner cylinder 9 of the child cap 2 are swollen. The protruding edge 9e is forcibly fitted, and the inner packing 12A is compressed by the lower end opening edge 9c of the inner cylinder 9. Then, the lower end opening edge 9c of the inner cylinder 6 is in a state in which the protruding edge 9a of the inner cylinder 9 is press-fitted into the annular groove 3 having a reverse Ω cross section while the inner packing 12A is compressed. The protruding edge 3e that swells inward partially enters the annular groove 9b on the outer peripheral surface of the inner cylinder 9, and presses the protruding edge 9a of the inner cylinder 9 in the vertical direction. The blockage by the bottom lid 3 has a very high sealing performance, and even if the pressure gas is sealed in the inner cylinder 9, the airtightness can be sufficiently secured.

これに加えて、底蓋3の環状凹部3cの外周上縁3fの外側パッキン12Bが、外筒6の下端開口縁6gに圧接し、これら外周上縁3fと下端開口縁6gとの間に圧縮して挟まれた状態となり、外筒6の下端開口も底蓋3によって密封される。これにより、外筒6と内筒9との間隙7もシールされるが、この間隙7は、外筒6の内面突部6fが内筒9の外周面に密着することによっても、二重にシールされる。   In addition, the outer packing 12B of the outer peripheral upper edge 3f of the annular recess 3c of the bottom lid 3 is pressed against the lower end opening edge 6g of the outer cylinder 6, and compressed between the outer peripheral upper edge 3f and the lower end opening edge 6g. The lower end opening of the outer cylinder 6 is also sealed by the bottom cover 3. As a result, the gap 7 between the outer cylinder 6 and the inner cylinder 9 is also sealed. This gap 7 is also doubled by the inner surface protrusion 6f of the outer cylinder 6 being in close contact with the outer peripheral surface of the inner cylinder 9. Sealed.

従って、内筒9の下端開口と底蓋3の環状凹部3cとの間は、環状凹部3c内での内側パッキン12Aによるシールと、環状凹部3c外での外側パッキン12Bによるシールとで、内外二重にシールされることになる。特に、外側のシール構造では、環状凹部3cの外周上縁3fと外筒6の下端開口縁6gとが、内周から外周へ向かって下向きに傾斜しているので、これらの間に、そもそも液が溜まりにくい傾向になっていることと、外側パッキン12Bに対する圧縮力が三次元に加わって、外側パッキン12Bに対する外筒6の下端開口縁6gの圧接力が平均化されることにより、シール性能が向上する。その下向きの傾斜角度θを約20度としたところ、シール性が最も高かった。   Therefore, between the lower end opening of the inner cylinder 9 and the annular recess 3c of the bottom lid 3, there is a seal by the inner packing 12A inside the annular recess 3c and a seal by the outer packing 12B outside the annular recess 3c. It will be heavily sealed. In particular, in the outer seal structure, the outer peripheral upper edge 3f of the annular recess 3c and the lower end opening edge 6g of the outer cylinder 6 are inclined downward from the inner periphery toward the outer periphery. The seal performance tends to be reduced by the fact that the pressure tends to be less likely to accumulate and the compressive force applied to the outer packing 12B is added in three dimensions, and the pressure contact force of the lower end opening edge 6g of the outer cylinder 6 against the outer packing 12B is averaged. improves. When the downward inclination angle θ was about 20 degrees, the sealing performance was the highest.

上記のようにして組み立てた本実施例のボトルキャップを、図4に示すように、ペットボトル等のボトル50の口部50aに装着する場合、外筒6をボトル口部50a内に挿入し、親キャップ1を閉じる方向に回して、そのキャップ本体5の雌ネジ5cをボトル口部50aの雄ネジ50bに螺合させ、更に親キャップ1のキャップ本体5のロック突部5eがボトル口部50a側のロック鍔部50dを強制的に越えて、キャップ本体5の環状歯部5gがボトル口部50aの開口縁に食い込む状態となるまで、親キャップ1を更に閉じる方向に回してボトル口部50aを封止する。これにより、親キャップ1は、強力な力を加えない限りボトル口部50aから外すことができない。   When the bottle cap of the present embodiment assembled as described above is attached to the mouth portion 50a of the bottle 50 such as a plastic bottle as shown in FIG. 4, the outer cylinder 6 is inserted into the bottle mouth portion 50a, The parent cap 1 is turned in the closing direction so that the female screw 5c of the cap main body 5 is screwed into the male screw 50b of the bottle mouth portion 50a, and the lock protrusion 5e of the cap body 5 of the parent cap 1 is further connected to the bottle mouth portion 50a. The parent cap 1 is further rotated in the direction of closing until the annular tooth portion 5g of the cap body 5 bites into the opening edge of the bottle mouth portion 50a, forcibly exceeding the lock collar portion 50d on the side, and the bottle mouth portion 50a. Is sealed. Thus, the parent cap 1 cannot be removed from the bottle mouth portion 50a unless a strong force is applied.

これに対して子キャップ2の場合には、これを親キャップ1に対し開く方向に回すと、親キャップ1の外筒6の口部6aに対して上側へ螺進して行くが、子キャップ2のバンド部13は、親キャップ1側の抜け止め部6eにより上昇を規制されるため、バンド部13との連結部であるブリッジ14が切断してバンド部13が分離し、更に凹部15aと凸部15bとの嵌合も外れる。   On the other hand, in the case of the child cap 2, when this is rotated in the opening direction with respect to the parent cap 1, the child cap 2 is screwed upward with respect to the mouth 6a of the outer cylinder 6 of the parent cap 1. 2 is restricted from rising by the retaining portion 6e on the side of the parent cap 1, so that the bridge 14 which is a connecting portion with the band portion 13 is cut and the band portion 13 is separated, and further, the concave portion 15a The fitting with the convex part 15b is also released.

子キャップ2を更に回転させると、これに伴いその内筒9も回転しながら上昇するが、底蓋3の環状凹部3cが親キャップ1の外筒6の下端開口縁6gに当接しているので、底蓋3は上昇を拘束されるのに対し、内筒9は更に上昇していくので、底蓋3が内筒9から外れて脱落する。これが脱落すると、内筒9内の原料11が圧力気体と共に一気に噴出され、底蓋3はボトル50内の液中に沈降する。   When the child cap 2 is further rotated, the inner cylinder 9 is also raised while rotating, but the annular recess 3c of the bottom cover 3 is in contact with the lower end opening edge 6g of the outer cylinder 6 of the parent cap 1. The bottom cover 3 is restrained from rising, while the inner cylinder 9 is further lifted, so that the bottom cover 3 is detached from the inner cylinder 9 and falls off. When this falls off, the raw material 11 in the inner cylinder 9 is ejected at a time together with the pressure gas, and the bottom lid 3 is settled in the liquid in the bottle 50.

本発明の実施例の組み立て前の状態で、(A)は斜視図、(B)は断面図である。FIG. 3A is a perspective view and FIG. 2B is a cross-sectional view of the embodiment of the present invention before assembly. 親キャップと子キャップとを組み立てた状態で、(A)は斜視図、(B)は断面図である。In a state where the parent cap and the child cap are assembled, (A) is a perspective view and (B) is a sectional view. 更に底蓋を組み立てた状態で、(A)は斜視図、(B)は断面図である。Furthermore, in the state which assembled the bottom cover, (A) is a perspective view, (B) is sectional drawing. ボトルに装着した状態の断面図である。It is sectional drawing of the state with which the bottle was mounted | worn.

符号の説明Explanation of symbols

1 親キャップ
2 子キャップ
3 底蓋
3a 押込部
3b 環状凹溝
3c 環状凹部
3d 突起
3e 突縁
3f 外周上縁
3g 凹面
5 キャップ本体
5a 頂部
5b 胴部
5c 雌ネジ
5d ローレット
5e ロック突部
5f 間隙
5g 環状歯部
6 外筒
6a 口部
6b 垂下筒部
6d 雄ネジ
6e 抜け止め部
6f 内面突部
6g 下端開口縁
7 間隙
8 キャップ本体
8a 頂部
8b 胴部
8e 雌ネジ
8f ローレット
8g 矢印
9 内筒
9a 突縁
9b 環状凹溝
9c 下端開口縁
11 原料
12A 内側パッキン
12B 外側パッキン
13 バンド部
14 ブリッジ
15a 凹部
15b 凸部
50 ボトル
50a 口部
50b 雄ネジ
50c 補強鍔部
50d ロック鍔部
DESCRIPTION OF SYMBOLS 1 Parent cap 2 Child cap 3 Bottom cover 3a Pushing part 3b Annular recessed groove 3c Annular recessed part 3d Projection 3e Projection edge 3f Outer periphery upper edge 3g Concave surface 5 Cap main body 5a Top part 5b Trunk part 5c Female screw 5d Knurl 5e Lock projection part 5f Gap 5g Ring tooth part 6 Outer cylinder 6a Mouth part 6b Drooping cylinder part 6d Male thread 6e Retaining prevention part 6f Inner surface protrusion part 6g Lower end opening edge 7 Gap 8 Cap body 8a Top part 8b Body part 8e Female thread 8f Knurl 8g Arrow 9 Inner cylinder 9a Projection Edge 9b Annular groove 9c Lower end opening edge 11 Raw material 12A Inner packing 12B Outer packing 13 Band part 14 Bridge 15a Concave part 15b Convex part 50 Bottle 50a Mouth part 50b Male thread 50c Reinforcement collar part 50d Lock collar part

Claims (3)

ボトルの口部に挿入する外筒を備えた親キャップと、その外筒に挿入して原料収納部となる内筒を備えた子キャップと、その内筒の下端開口を封止する上面が凸面となる押込部を有する底蓋とからなり、該底蓋の周縁には、環状凸部が一体に形成されて前記押込部と前記環状凸部との間に前記内筒の下端部が圧入される環状凹溝が形成されるとともに、前記環状凸部よりも軟質な材質の内側パッキンが、環状凸部との同時成形により環状凹溝の底面に一体的に設けられており、親キャップをボトルの口部に被せるとともに、子キャップを親キャップの外筒に螺合させることにより、該外筒の上端開口とボトルの口部とを封止でき、また子キャップを親キャップの外筒に対し開く方向に回すことにより、底蓋が親キャップの外筒によって内筒から脱落され、内筒内の原料がボトル内に放出されるボトルキャップにおいて、
前記底蓋の前記環状凸部の上面と前記外筒の下端開口面とが、内周から外周へ向かって下向きに傾斜し、
前記環状凸部よりも軟質な材質の環状の外側パッキンが、該環状凸部との同時成形により該環状凸部の傾斜した上面に一体的に設けられ、
前記子キャップを前記親キャップの外筒に螺合させ、前記内筒の下端部が前記底蓋の環状凹溝に圧入した状態で、前記外側パッキンに前記外筒の傾斜した下端開口面が圧接していることを特徴とするボトルキャップ。
A parent cap having an outer cylinder to be inserted into the mouth of the bottle, a child cap having an inner cylinder to be inserted into the outer cylinder and serving as a raw material storage section, and an upper surface sealing the lower end opening of the inner cylinder is convex. A bottom cover having a pressing portion to be formed, and an annular convex portion is integrally formed on the periphery of the bottom lid, and a lower end portion of the inner cylinder is press-fitted between the pressing portion and the annular convex portion. An annular groove is formed, and an inner packing made of a softer material than the annular convex portion is integrally provided on the bottom surface of the annular concave groove by simultaneous molding with the annular convex portion. The upper end opening of the outer cylinder and the mouth of the bottle can be sealed by screwing the child cap onto the outer cylinder of the parent cap, and the child cap is attached to the outer cylinder of the parent cap. By turning in the opening direction, the bottom lid can be Is falling, the bottle cap material in the inner cylinder is discharged into the bottle,
Wherein an upper surface of the annular projection of the bottom lid and the lower end opening surface of the outer cylinder is tilted down direction from the inner circumference to the outer circumference,
An annular outer packing made of a softer material than the annular protrusion is integrally provided on the inclined upper surface of the annular protrusion by simultaneous molding with the annular protrusion,
The child cap screwed into the outer cylinder of the parent cap, in a state where the lower end of the inner cylinder is press-fitted into the annular groove of the bottom cover, the inclined lower end opening surface of the outer cylinder in said outer gasket is pressed A bottle cap characterized by
環状凸部の上面と外筒の下端開口面の傾斜角度が20度であることを特徴とする請求項1に記載のボトルキャップ。   The bottle cap according to claim 1, wherein an inclination angle of the upper surface of the annular convex portion and the lower end opening surface of the outer cylinder is 20 degrees. 外筒の下端縁に続くその上側の内周面が内筒の外周面と密着することを特徴とする請求項1または2に記載のボトルキャップ。   The bottle cap according to claim 1, wherein an inner peripheral surface on an upper side following a lower end edge of the outer cylinder is in close contact with an outer peripheral surface of the inner cylinder.
JP2005259064A 2005-09-07 2005-09-07 Bottle cap Active JP4295258B2 (en)

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Publication number Priority date Publication date Assignee Title
JP5563823B2 (en) * 2007-09-07 2014-07-30 株式会社フレッシュ Bottle cap
JP2009126527A (en) * 2007-11-20 2009-06-11 Masayuki Makita Bottle cap
JP2009149373A (en) * 2007-11-30 2009-07-09 Mip:Kk Bottle cap and container having the same
WO2009084120A1 (en) * 2007-12-27 2009-07-09 Minami, Yuusuke Raw material storage-type bottle cap
EP2327634B1 (en) * 2008-09-01 2013-01-16 Fresh Co., Ltd. Cap and container with cap
CN103167992B (en) * 2010-08-20 2016-01-20 刘益明 Distribute lid
WO2012147351A1 (en) * 2011-04-28 2012-11-01 株式会社フレッシュ Powdered starting material, bottle cap, and container comprising said bottle cap
JP6547573B2 (en) * 2015-10-14 2019-07-24 凸版印刷株式会社 Transfer cap and transfer container into which the cap is inserted
KR102479972B1 (en) * 2020-09-10 2022-12-21 제이씨텍(주) Separable and acceptable container cap

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