JP4159041B2 - plug - Google Patents

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Publication number
JP4159041B2
JP4159041B2 JP2003199541A JP2003199541A JP4159041B2 JP 4159041 B2 JP4159041 B2 JP 4159041B2 JP 2003199541 A JP2003199541 A JP 2003199541A JP 2003199541 A JP2003199541 A JP 2003199541A JP 4159041 B2 JP4159041 B2 JP 4159041B2
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Japan
Prior art keywords
bottle
stopper
opening
shaped container
container
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JP2003199541A
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JP2005041484A (en
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英雄 中川
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株式会社 中川商店
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Priority to JP2003199541A priority Critical patent/JP4159041B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、瓶状容器に取り付けられる栓の構造に関するものであり、より詳しくは、瓶状容器内の空気が膨張した場合であっても抜けないようにした栓の構造に関するものである。
【0002】
【従来の技術】
近年、瓶状容器の開口部に圧入される栓に関する技術が種々提案されてきている。この中でも、リサイクルできるようにした栓に関して、特許文献1に開示されるようなものが存在する。
【0003】
【特許文献1】
特開2001―206397号公報
【0004】
この特許文献1に開示されている栓は、瓶状容器の開口部内に圧入される中栓部と、瓶状容器の開口部を覆う鍔部とを設け、この中栓部と鍔部とをプラスチックなどの合成樹脂で一体成形し、その際、中栓部の下端を開口させてその中栓部の下端近傍の外周部に上下方向に沿うスリット状の導通路を設けるようにしたものである。そして、瓶状容器内の空気が膨張して栓が持ち上げられた場合であっても、その中栓部の導通路を瓶状容器の開口部上に露出させ、その導通路を介して瓶状容器内で膨張した空気を外部に放出させるようにしたものである。
【0005】
【発明が解決しようとする課題】
ところで、このように瓶状容器の開口部内に圧入される中栓部は、瓶状容器の内壁との密着性を高めるべく、その外径寸法を瓶状容器の内径よりも大きくしている。このため、中栓部には圧入の際、外周方向から強い圧力が加わり、中栓部はこの圧力に耐えうる強度を有していなければならない。
【0006】
これに対し、上記特許文献1に記載されている栓は、その中栓部の下端を開口させるようにしており、しかも、その外周部には肉厚を薄くした導通路を設けるようにしている。このため、その中栓部の下端近傍は、外周方向からの圧力によって容易に変形してしまい、特に、中栓部の径を規定の寸法よりも大きくすれば導通路近傍に縦方向の皺を生じてしまう。そして、一旦この皺を生じれば、その癖がついてしまい、完全に打栓しても、瓶状容器内の空気が外部に漏れてしまうという問題を有していた。
【0007】
そこで、本発明は上記課題に着目して、導通路を設けて膨張空気を外部に放出できるようにしたものにおいて、中栓部の外周方向からの圧力による変形を防止し、膨張空気による抜けを防止できるようにした栓を提供することを目的とする。
【0008】
【課題を解決するための手段】
すなわち、本発明は上記課題を解決すべく、瓶状容器の開口部に圧入される中栓部と、この中栓部の上方に設けられ、瓶状容器の開口部を覆う鍔部とを一体成形してなる栓において、前記中栓部を、瓶状容器の開口部に完全に打栓した状態で当該開口部の内側に密封させる当接部と、当該当接部の下方に設けられ、当該当接部よりも小径の外周部と底面部とを有するように形成し、当該小径に形成された外周部に、瓶状容器内の気体を外部へ逃がすための複数の導通路と、当該複数の導通路の間に設けられ、瓶状容器内の気体の膨張による押し上げを防止するための摩擦部とを設けるようにしたものである。
【0009】
このように構成すれば、中栓部の下端にその外周部全面を覆う底面部を設けているため、下端近傍における外周方向からの圧力に対しても容易に変形せず、外周部に皺などを生ずることがなくなる。また、外周方向からの押圧に耐えることができるので、瓶状容器の内壁との接触圧を高くすることができ、これによって、瓶状容器との密着度を高くすることができる。また、瓶状容器の開口部に栓を軽く圧入した状態で、中栓部下方の摩擦部によって栓の抜けが防止され、この状態で瓶状容器内の膨張気体を導通路を介して外部に放出させることができるようになる。
【0010】
また、別の実施態様として、鍔部の上面に開口部を設け、この開口部の内壁に内接するように冠蓋を取り付ける。
【0011】
このように構成すれば、中栓部上方の外周方向や鍔部の外周方向から強い圧力が加えられたような場合であっても、冠蓋を開口部の内壁に内接させて取り付けているため、その圧力に耐えることができ、中栓部や鍔部の外径形状に変形を生じさせることがなくなる。これにより、内部空気の漏れなどを防止することができるようになる。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。図2は栓本体1の上面図(図2(a))、正面図(図2(b))、底面図(図2(c)を示したものであり、図3はその栓本体1の鍔部3に取り付けられる冠蓋4の上面図(図3(a))、正面図(図3(b))、底面図(図3(c))を示したものである。また、図1は、図2で示される栓本体1に図3の冠蓋4を取り付けた栓100の、上面図(図1(a))、正面図(図1(b))、底面図(図1(c)を示したものであり、また、図4は、図1におけるA−A断面図を示したものである。
【0013】
図において、2は中栓部、3は鍔部であり、この中栓部2および鍔部3によって栓本体1を構成する。また、4は冠蓋であり、この鍔部3の開口部に着脱可能に取り付けられる。そして、この実施の形態では、中栓部2と鍔部3とをプラスチックなどの合成樹脂によって一体成形し、その際、鍔部3の上面中央に冠蓋取付部30を設け、また、中栓部2の下端に底面部21を設ける。そして、その鍔部3の冠蓋取付部30に冠蓋4を取り付けて栓100を構成するようにしたものである。以下、本実施の形態における栓100の具体的構成について説明する。
【0014】
中栓部2は、外周部22の外径寸法を瓶状容器の内径よりも大きく設定し、外周部22の肉厚を薄くして内部に中空部20(図2、図4参照)を設ける。そして、中栓部3を瓶状容器の開口部に圧入する際、瓶状容器の内壁から加わる圧力によってその外周部22を収縮させるようにしたものである。中栓部3の下端に設けられる底面部21は、中栓部3の外周部22の下端全面を覆うもので、その外側を湾曲させるようにして外周部22とともに一体成形される。そして、この底面部21の略中央部分に設けられた平面部にリサイクル可能な製品であることを示すリサイクルマークを設ける。一方、この中栓部3の外周部22には、上下方向に沿う導通路24と、瓶状容器内壁との摩擦を増大させる摩擦部25とを設ける。この導通路24は、底面部21における湾曲部分から外周部22における中央近傍まで設けられるスリット状のもので、その導通路24のスリットの底面部24aを外周部22の表面よりも若干凹むように形成し、このスリットの底面部24aと瓶状容器の内壁との間に隙間を形成する。そして、この隙間を介して瓶状容器内で膨張した空気を外部に放出させるようにしている。また、摩擦部25は、外周部22上に設けられた複数の導通路24の間に設けられるもので、エンボス加工により粗面を形成し、これによって、瓶状容器の内壁との摩擦力を増大させて抜けを防止するようにしている。また、この中栓部3の上方には、中栓部3の下方よりも径の大きい当接部23が設けられる。この当接部23は、完全に打栓した状態において瓶状容器の開口部を完全密封できるようにしたもので、その表面を瓶状容器の内壁と密着しうる滑らかな表面にしている。
【0015】
鍔部3は、この中栓部3の上方に形成され、その外径寸法を瓶状容器の開口部における外径寸法と略等しくなるようにしている。その鍔部3の上面部の中央に冠蓋4を取り付けるための冠蓋取付部30を設けている。この冠蓋取付部30は、鍔部3の上面側に円形の上部開口部31を設けるとともに、そこから少し凹んだとところに下部開口部32を設けて構成される。この上部開口部32は、冠蓋上部鍔部41の外径寸法に対応して大きな径に形成され、また、その冠蓋4の上部鍔部41の厚み寸法とほぼ同じ、もしくは、若干浅めの凹部を形成する。また、下部開口部32は、下部冠蓋部42の外径寸法に対応した小さな径に形成されるものであり、中栓部3における中空部20の内径と同じ径の大きさに形成される。そして、この下部開口部32の内側壁面に、凸状の係止部33(図2、図4参照)を設け、この係止部33に冠蓋4を着脱可能に係止させうるようにしている。
【0016】
この冠蓋4は、栓本体1とは別体の部材で構成されるもので、好ましくは、栓本体1と一体で分別回収可能にすべく栓本体1と同じ合成樹脂によって構成される。この冠蓋4は、上部冠蓋鍔部41と下部冠蓋部42を有するように形成されるもので、上部冠蓋鍔部41は、鍔部3の上部開口部31の内側壁面31aに内接しうるように形成され、また、その外周部分の上部に面取部41aを設けて鍔部3の上面部と連続した面を形成できるようにしている。一方、下部冠蓋部42は、鍔部3の下部開口部32に対応した外径寸法を有するもので、鍔部3の係止部33に対応した対応係止部43を設ける。そして、この係止部33に対応係止部43を係止させて上部冠蓋部41の外周面を鍔部3の上部開口部31の内壁31aに内接させ、また、下部冠蓋部42の外周面を鍔部3の下部開口部12の内壁32aに内接させるようにして取り付ける。
【0017】
次に、このように構成された栓100を瓶状容器に取り付ける方法、および、瓶状容器に取り付けられた栓100の状態について図4を用いて説明する。
【0018】
まず、冠蓋4を栓本体1に取り付けた状態で、瓶状容器の開口部に栓を軽く圧入する。この状態では、中栓部2の下方に設けられた湾曲部分が瓶状容器の開口部に当接した状態となり、中栓部2の摩擦部25によって栓100の抜けが防止される。そして、この状態で、瓶状容器内の膨張気体を導通路24を介して外部に放出させる。そして、瓶状容器内の気体を外部に放出させた後、完全に打栓する。この際、瓶状容器の内壁からの圧力によって中栓部2が変形しようとするが、中栓部2に底面部21を設けてその全面を覆うようにしているため、中栓部2の下部に皺を生ずることがなくなり、また、その底面部21によって外周方向からの圧力に対抗して中栓部2の外周部22を瓶状容器の内壁を強力に押圧する。また、中栓部2の上方部分については、鍔部3の上部開口部31および下部開口部32の内壁31a、32aに内接する冠蓋4を設けているため、中栓部2の当接部23に圧力が加わってもその圧力に対抗することができ、また、鍔部3の外周方向から圧力が加わっても、容易に変形しないようにすることができるようになる。
【0019】
このように上記実施の形態によれば、中栓部2の下方にその中栓部2の外周部22の下端全面を覆う底面部21を設け、この中栓部2の底面部21近傍における外周部22に、瓶状容器内の気体を外部へ逃がすための導通路24と、瓶状容器内の気体の膨張による押し上げを防止するための摩擦部25とを設けたので、外周方向からの圧力による変形を防止することができる。
【0020】
また、この際、中栓部2と鍔部3を有する部分と冠蓋4の2ピース構造にしたので、冠蓋4に銘柄に合わせたロゴなどを容易に印刷することができるようになる。
【0021】
また、上記実施の形態では、冠蓋4として、栓本体1と同じ合成樹脂によって形成するようにしたが、栓100に高級感を持たせるようにする場合は、この冠蓋4を金属膜で覆うか、もしくは、冠蓋自体を金属で形成するようにしても良い。
【0022】
【発明の効果】
本発明は、瓶状容器の開口部に圧入される中栓部と、この中栓部の上方に設けられ、瓶状容器の開口部を覆う鍔部とを一体成形してなる栓において、前記中栓部を、瓶状容器の開口部に完全に打栓した状態で当該開口部の内側に密封させる当接部と、当該当接部の下方に設けられ、当該当接部よりも小径の外周部と底面部とを有するように形成し、当該小径に形成された外周部に、瓶状容器内の気体を外部へ逃がすための複数の導通路と、当該複数の導通路の間に設けられ、瓶状容器内の気体の膨張による押し上げを防止するための摩擦部とを設けるようにしたので、下端近傍における外周方向からの圧力に対しても容易に変形せず、外周部に皺などを生ずることがなくなる。また、外周方向からの耐えることができるので、瓶状容器の内壁との接触圧を高くすることができ、これによって、瓶状容器との密着度を高くすることができる。また、瓶状容器の開口部に栓を軽く圧入した状態で、中栓部下方の摩擦部によって栓の抜けが防止され、この状態で瓶状容器内の膨張気体を導通路を介して外部に放出させることができるようになる。
【図面の簡単な説明】
【図1】本発明の一実施の形態における栓の上面図(a)、正面図(b)、底面図(c)
【図2】本発明の一実施の形態における栓本体の上面図(a)、正面図(b)、底面図(c)
【図3】本発明の一実施の形態における栓本体の鍔部に取り付けられる冠蓋本体の上面図(a)、正面図(b)、底面図(c)
【図4】図3におけるA−A断面図および、栓を瓶状容器に取り付けた状態を示す図
【符号の説明】
2・・・中栓部
3・・・鍔部
4・・・冠蓋
21・・・底面部
22・・・外周部
24・・・導通路
25・・・摩擦部
31・・・鍔部の上部開口部
31a・・・上部開口部の内壁
32・・・鍔部の下部開口部
32a・・・下部開口部の内壁
100・・・栓
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a stopper attached to a bottle-shaped container, and more particularly to a structure of a stopper that prevents the bottle-shaped container from being removed even when air in the bottle-shaped container expands.
[0002]
[Prior art]
In recent years, various techniques related to a stopper that is press-fitted into an opening of a bottle-shaped container have been proposed. Among these, there exists a thing disclosed by patent document 1 regarding the stopper which enabled it to recycle.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-206397
The stopper disclosed in Patent Document 1 is provided with an inner stopper portion that is press-fitted into an opening portion of a bottle-shaped container, and a collar portion that covers the opening portion of the bottle-shaped container. It is integrally molded with a synthetic resin such as plastic, and at that time, the lower end of the inner plug portion is opened, and a slit-like conduction path along the vertical direction is provided in the outer peripheral portion near the lower end of the inner plug portion. . And even when the air in the bottle-shaped container is expanded and the stopper is lifted, the conductive path of the inner stopper is exposed on the opening of the bottle-shaped container, and the bottle-shaped container is exposed via the conductive path. The air expanded in the container is discharged to the outside.
[0005]
[Problems to be solved by the invention]
By the way, the inner plug portion that is press-fitted into the opening of the bottle-shaped container in this way has an outer diameter that is larger than the inner diameter of the bottle-shaped container in order to improve adhesion to the inner wall of the bottle-shaped container. For this reason, a strong pressure is applied from the outer peripheral direction to the inner plug portion when it is press-fitted, and the inner plug portion must have a strength that can withstand this pressure.
[0006]
On the other hand, the stopper described in the above-mentioned Patent Document 1 is configured to open the lower end of the inner stopper portion, and to provide a conductive path with a reduced thickness on the outer peripheral portion thereof. . For this reason, the vicinity of the lower end of the inner plug portion is easily deformed by the pressure from the outer peripheral direction, and in particular, if the diameter of the inner plug portion is larger than a specified dimension, a vertical ridge is formed in the vicinity of the conduction path. It will occur. And once this wrinkle is generated, the wrinkle is attached, and even when completely plugged, there is a problem that the air in the bottle-like container leaks to the outside.
[0007]
Accordingly, the present invention pays attention to the above-mentioned problem, and in the structure in which the conduction path is provided so that the expansion air can be discharged to the outside, the deformation due to the pressure from the outer peripheral direction of the inner plug portion is prevented, and the escape by the expansion air is prevented. An object is to provide a stopper that can be prevented.
[0008]
[Means for Solving the Problems]
That is, in order to solve the above-mentioned problems, the present invention integrally integrates an inner stopper portion that is press-fitted into the opening portion of the bottle-shaped container and a collar portion that is provided above the inner stopper portion and covers the opening portion of the bottle-shaped container. In the molded stopper, the inner stopper is sealed below the opening in a state where the inner stopper is completely plugged into the opening of the bottle-shaped container, and provided below the contact. The outer peripheral portion and the bottom surface portion having a smaller diameter than the contact portion, and a plurality of conduction paths for releasing the gas in the bottle-like container to the outside on the outer peripheral portion formed in the small diameter, provided between the plurality of conductive paths is obtained by so providing the friction portion for preventing the push-up due to the expansion of the gas in the bottle-shaped container.
[0009]
If comprised in this way, since the bottom face part which covers the outer peripheral part whole surface is provided in the lower end of the inside plug part, it does not change easily with respect to the pressure from the outer peripheral direction in the vicinity of the lower end, so Will not occur. Moreover, since it can endure the press from an outer peripheral direction, a contact pressure with the inner wall of a bottle-shaped container can be made high, and, thereby, the adhesiveness with a bottle-shaped container can be made high. In addition, with the stopper lightly press-fitted into the opening of the bottle-like container, the friction part below the inner stopper prevents the stopper from coming off, and in this state, the expansion gas in the bottle-like container is released to the outside through the conduction path. Can be released.
[0010]
As another embodiment, an opening is provided on the upper surface of the collar, and a crown lid is attached so as to be inscribed in the inner wall of the opening.
[0011]
With this configuration, the crown cap is attached to the inner wall of the opening even when strong pressure is applied from the outer peripheral direction above the inner plug portion or the outer peripheral direction of the collar portion. The pressure can be withstood, and the outer diameter shape of the inner plug portion and the collar portion will not be deformed. Thereby, leakage of internal air can be prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 2 shows a top view (FIG. 2 (a)), a front view (FIG. 2 (b)), and a bottom view (FIG. 2 (c)) of the plug body 1. FIG. The top view (FIG. 3 (a)), front view (FIG. 3 (b)), and bottom view (FIG. 3 (c)) of the crown lid 4 attached to the collar part 3 are shown. 2, a top view (FIG. 1 (a)), a front view (FIG. 1 (b)), and a bottom view (FIG. 1 (c)) of the stopper 100 with the crown lid 4 of FIG. 3 attached to the stopper body 1 shown in FIG. 4 is a cross-sectional view taken along line AA in FIG.
[0013]
In the figure, reference numeral 2 denotes an inside plug portion, and 3 denotes a collar portion. The inside plug portion 2 and the collar portion 3 constitute a plug body 1. Reference numeral 4 denotes a crown lid, which is detachably attached to the opening of the collar 3. In this embodiment, the inner plug portion 2 and the flange portion 3 are integrally formed of a synthetic resin such as plastic, and at this time, a crown lid mounting portion 30 is provided at the center of the upper surface of the flange portion 3, and the inner plug portion A bottom surface 21 is provided at the lower end of 2. Then, the cap 100 is configured by attaching the crown lid 4 to the crown lid attaching portion 30 of the collar portion 3. Hereinafter, a specific configuration of the stopper 100 in the present embodiment will be described.
[0014]
The inner plug portion 2 is set with the outer diameter of the outer peripheral portion 22 larger than the inner diameter of the bottle-shaped container, and the inner peripheral portion 22 is made thin to provide a hollow portion 20 (see FIGS. 2 and 4). . When the inner plug portion 3 is press-fitted into the opening of the bottle-shaped container, the outer peripheral portion 22 is contracted by the pressure applied from the inner wall of the bottle-shaped container. The bottom surface portion 21 provided at the lower end of the inner plug portion 3 covers the entire lower end of the outer peripheral portion 22 of the inner plug portion 3 and is integrally formed with the outer peripheral portion 22 so as to bend the outside. A recycle mark indicating that the product is recyclable is provided on a flat portion provided at a substantially central portion of the bottom surface portion 21. On the other hand, the outer peripheral portion 22 of the inner plug portion 3 is provided with a conduction path 24 along the vertical direction and a friction portion 25 that increases friction between the inner wall of the bottle-like container. This conduction path 24 is a slit-like thing provided from the curved part in the bottom face part 21 to the center vicinity in the outer peripheral part 22, and the bottom part 24 a of the slit of the conduction path 24 is slightly recessed from the surface of the outer peripheral part 22. A gap is formed between the bottom surface portion 24a of the slit and the inner wall of the bottle-shaped container. Then, the air expanded in the bottle-shaped container is released to the outside through this gap. Moreover, the friction part 25 is provided between the some conduction | electrical_connection paths 24 provided on the outer peripheral part 22, forms a rough surface by embossing, and, thereby, produces frictional force with the inner wall of a bottle-shaped container. It is increased to prevent omission. Further, an abutting portion 23 having a diameter larger than that below the inner plug portion 3 is provided above the inner plug portion 3. The abutting portion 23 is configured so that the opening of the bottle-shaped container can be completely sealed in a completely plugged state, and the surface thereof is a smooth surface that can be in close contact with the inner wall of the bottle-shaped container.
[0015]
The eaves portion 3 is formed above the inner plug portion 3 and has an outer diameter dimension substantially equal to the outer diameter dimension at the opening of the bottle-shaped container. A crown lid attaching portion 30 for attaching the crown lid 4 to the center of the upper surface portion of the collar portion 3 is provided. The crown lid attaching part 30 is configured by providing a circular upper opening 31 on the upper surface side of the collar part 3 and providing a lower opening 32 at a position slightly recessed from the upper opening 31. The upper opening 32 is formed to have a large diameter corresponding to the outer diameter of the crown lid upper collar 41, and has a concave portion that is substantially the same as or slightly shallower than the thickness dimension of the upper collar 41 of the crown lid 4. Form. The lower opening 32 is formed to have a small diameter corresponding to the outer diameter of the lower crown lid part 42 and is formed to have the same diameter as the inner diameter of the hollow part 20 in the inner plug part 3. A convex locking portion 33 (see FIGS. 2 and 4) is provided on the inner wall surface of the lower opening 32, and the crown lid 4 can be detachably locked to the locking portion 33. .
[0016]
The crown lid 4 is composed of a member separate from the plug body 1, and is preferably composed of the same synthetic resin as the plug body 1 so that it can be separated and collected integrally with the plug body 1. The crown lid 4 is formed to have an upper crown lid portion 41 and a lower crown lid portion 42, and the upper crown lid portion 41 can be inscribed in the inner wall surface 31 a of the upper opening 31 of the collar portion 3. In addition, a chamfered portion 41 a is provided at the upper portion of the outer peripheral portion so that a surface continuous with the upper surface portion of the flange portion 3 can be formed. On the other hand, the lower crown lid part 42 has an outer diameter corresponding to the lower opening 32 of the collar part 3 and is provided with a corresponding latching part 43 corresponding to the latching part 33 of the collar part 3. Then, the corresponding locking portion 43 is locked to the locking portion 33 so that the outer peripheral surface of the upper crown lid portion 41 is inscribed in the inner wall 31 a of the upper opening 31 of the flange 3, and the outer periphery of the lower crown lid portion 42 is The surface is attached so as to be inscribed in the inner wall 32a of the lower opening 12 of the flange 3.
[0017]
Next, a method of attaching the stopper 100 configured as described above to the bottle-shaped container and a state of the stopper 100 attached to the bottle-shaped container will be described with reference to FIG.
[0018]
First, with the crown lid 4 attached to the stopper body 1, the stopper is lightly pressed into the opening of the bottle-shaped container. In this state, the curved portion provided below the inner stopper portion 2 is in contact with the opening of the bottle-shaped container, and the stopper 100 is prevented from being pulled out by the friction portion 25 of the inner stopper portion 2. In this state, the expanded gas in the bottle-like container is discharged to the outside through the conduction path 24. And after discharging the gas in a bottle-shaped container outside, it stoppers completely. At this time, the inner stopper portion 2 tends to be deformed by the pressure from the inner wall of the bottle-shaped container. However, the bottom portion 21 is provided on the inner stopper portion 2 so as to cover the entire surface thereof. In addition, the bottom surface portion 21 strongly presses the outer peripheral portion 22 of the inner plug portion 2 against the inner wall of the bottle-shaped container against the pressure from the outer peripheral direction. Further, the upper portion of the inner plug portion 2 is provided with the crown lid 4 inscribed in the inner walls 31a and 32a of the upper opening 31 and the lower opening 32 of the collar portion 3, so that the contact portion 23 of the inner plug portion 2 is provided. Even if a pressure is applied, the pressure can be countered, and even if a pressure is applied from the outer peripheral direction of the flange 3, it can be prevented from being easily deformed.
[0019]
As described above, according to the embodiment, the bottom portion 21 that covers the entire lower end of the outer peripheral portion 22 of the inner plug portion 2 is provided below the inner plug portion 2, and the outer periphery of the inner plug portion 2 in the vicinity of the bottom portion 21 is provided. Since the portion 22 is provided with a conduction path 24 for escaping the gas in the bottle-like container to the outside and a friction part 25 for preventing the gas container inside the bottle-like container from being pushed up due to the expansion of the gas. It is possible to prevent deformation due to.
[0020]
At this time, since the two-piece structure of the portion having the inner plug portion 2 and the collar portion 3 and the crown lid 4 is used, a logo or the like according to the brand can be easily printed on the crown lid 4.
[0021]
In the above embodiment, the crown lid 4 is formed of the same synthetic resin as that of the plug body 1. However, if the stopper 100 is to have a high-class feeling, the crown lid 4 is covered with a metal film. Alternatively, the crown lid itself may be made of metal.
[0022]
【The invention's effect】
The present invention includes a inner plug portion to be press-fitted into the opening of the bottle-like container is provided above the inner plug portion, the stopper formed by integrally molding a flange portion that covers the opening of the bottle-like container, wherein A contact part that seals the inside stopper part inside the opening part in a state where it is completely plugged into the opening part of the bottle-like container, and a lower diameter of the contact part. Formed to have an outer peripheral part and a bottom part, provided on the outer peripheral part formed in the small diameter between a plurality of conduction paths for escaping the gas in the bottle-shaped container to the outside, and the plurality of conduction paths is, since the provided a friction portion for preventing the push-up due to the expansion of the gas in the bottle-like container, also not readily deformed by the pressure from the outer peripheral direction in the vicinity of the lower end, such as wrinkles on the outer periphery Will not occur. Moreover, since it can endure from an outer peripheral direction, a contact pressure with the inner wall of a bottle-shaped container can be made high, and, thereby, the adhesiveness with a bottle-shaped container can be made high. In addition, with the stopper lightly press-fitted into the opening of the bottle-like container, the friction part below the inner stopper prevents the stopper from coming off, and in this state, the expansion gas in the bottle-like container is released to the outside through the conduction path. Can be released.
[Brief description of the drawings]
FIG. 1 is a top view (a), a front view (b), and a bottom view (c) of a stopper according to an embodiment of the present invention.
FIG. 2 is a top view (a), a front view (b), and a bottom view (c) of a plug main body according to an embodiment of the present invention.
FIG. 3 is a top view (a), a front view (b), and a bottom view (c) of a crown lid main body that is attached to a collar portion of a plug main body according to an embodiment of the present invention.
4 is a cross-sectional view taken along line AA in FIG. 3 and a diagram showing a state where a stopper is attached to a bottle-like container.
2 ... Inner plug part 3 ... Bridge part 4 ... Crown lid 21 ... Bottom part 22 ... Outer peripheral part 24 ... Conducting path 25 ... Friction part 31 ... Upper part of the collar part Opening 31a ... Inner wall 32 of upper opening ... Lower opening 32a of collar part ... Inner wall 100 of lower opening ... Plug

Claims (1)

瓶状容器の開口部に圧入される中栓部と、この中栓部の上方に設けられ、瓶状容器の開口部を覆う鍔部とを一体成形してなる栓において、
前記中栓部を、
瓶状容器の開口部に完全に打栓した状態で当該開口部の内側に密封させる当接部と、
当該当接部の下方に設けられ、当該当接部よりも小径の外周部および底面部を有するように形成し、
当該小径に形成された外周部に、
瓶状容器内の気体を外部へ逃がすための複数の導通路と、
当該複数の導通路の間に設けられ、瓶状容器内の気体の膨張による押し上げを防止するための摩擦部とを形成したことを特徴とする栓。
In a stopper formed by integrally molding an inner stopper portion that is press-fitted into the opening portion of the bottle-shaped container and a collar portion that is provided above the inner stopper portion and covers the opening portion of the bottle-shaped container,
The inner plug portion,
An abutting portion for sealing inside the opening in a state where the opening of the bottle-shaped container is completely plugged;
Provided below the contact portion, formed to have an outer peripheral portion and a bottom surface portion having a smaller diameter than the contact portion,
In the outer periphery formed in the small diameter,
A plurality of conduction paths for escaping the gas in the bottle-shaped container to the outside;
A stopper formed between the plurality of conducting paths and formed with a friction portion for preventing the gas container inside the bottle-like container from being pushed up due to expansion.
JP2003199541A 2003-07-22 2003-07-22 plug Expired - Fee Related JP4159041B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003199541A JP4159041B2 (en) 2003-07-22 2003-07-22 plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003199541A JP4159041B2 (en) 2003-07-22 2003-07-22 plug

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JP4159041B2 true JP4159041B2 (en) 2008-10-01

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Publication number Priority date Publication date Assignee Title
DE102005058399A1 (en) * 2005-12-01 2007-06-14 Eppendorf Ag Deckelgefäß
CN101607615A (en) * 2008-06-20 2009-12-23 栓乐多瓶塞有限公司 Air pressure type corking cover
JP5033088B2 (en) * 2008-08-29 2012-09-26 積水成型工業株式会社 Inner lid for container that has both air permeability and air tightness
JP2014163577A (en) * 2013-02-25 2014-09-08 Nof Corp Burn-out container and module type shooting charge using the same
JP2017203484A (en) * 2016-05-11 2017-11-16 株式会社 加島 Plug body
JP7088558B2 (en) * 2019-05-15 2022-06-21 コダマ樹脂工業株式会社 Container spout structure and spout

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