JP6835515B2

JP6835515B2 - Container sealing device

Info

Publication number: JP6835515B2
Application number: JP2016187632A
Authority: JP
Inventors: 敬太岩水; 孝光磯貝
Original assignee: Tokan Kogyo Co Ltd
Current assignee: Tokan Kogyo Co Ltd
Priority date: 2016-09-26
Filing date: 2016-09-26
Publication date: 2021-02-24
Anticipated expiration: 2036-09-26
Also published as: JP2018052517A

Description

本発明は、分別回収可能な中栓を備える容器の封止装置に関する。 The present invention relates to a container sealing device provided with an inner stopper that can be separated and collected.

容器の封止装置として、上蓋と、容器の口部に嵌着される中栓とを有するものがある（例えば、特許文献１〜３参照）。特許文献１〜３において、容器と中栓とは通常材質が異なるため、リサイクルする際には、容器から中栓を分離する必要がある。特許文献１〜３では、使用済みの容器から中栓を分離しやすくしている。具体的には、特許文献１の中栓は、基端部外周面に舌片を有しており、この舌片を間に挟んで周方向に互いに離間する各側部に、舌片を中栓の先端側への引き上げ方向に容易に破断が可能な易破断部が上方に延出して形成されている。この舌片を中栓の先端側に引っ張り上げると、易破断部が同方向に破断し、中栓の基端部の締め付けが解除され、容器から中栓が離脱される。また、特許文献２の中栓は、外筒に深溝と、深溝を介して対向する把持片及び薄肉部と、把持片の両側に沿って形成された破断部とを有している。深溝は、外筒の肉厚部から把持片と薄肉部とに分離しており、破断部の破断によって把持片が外筒から突出することで把持片がつまみやすくなっている。また、特許文献３の中栓（注出栓）は、第１嵌合筒に複数の割溝を有しており、容器から分離しやすくなっている。なお、特許文献３の中栓では、中栓の下側の第１嵌合筒を封緘部材の第２嵌合筒で係合しており、容器から中栓が抜けにくくなっている。封緘部材の第２嵌合筒は、容器の開栓前において、キャップ部の周壁と第１破断線とを介して付設しているが、開栓後は、キャップ部から切り離され、中栓の第１嵌合筒と係合した状態で残る。中栓を容器から分離する場合は、封緘部材の第２嵌合筒を破断して除去することで、中栓を引き抜きやすくなっている。 As a container sealing device, there is a device having an upper lid and an inner plug fitted to the mouth of the container (see, for example, Patent Documents 1 to 3). In Patent Documents 1 to 3, since the container and the inner plug are usually made of different materials, it is necessary to separate the inner plug from the container when recycling. In Patent Documents 1 to 3, it is easy to separate the inner plug from the used container. Specifically, the inner plug of Patent Document 1 has a tongue piece on the outer peripheral surface of the base end portion, and the tongue piece is placed in each side portion of the tongue piece sandwiched between the tongue pieces and separated from each other in the circumferential direction. An easily broken portion that can be easily broken in the pulling direction toward the tip side of the stopper is formed so as to extend upward. When this tongue piece is pulled up toward the tip of the inner plug, the easily broken portion breaks in the same direction, the base end of the inner plug is released from tightening, and the inner plug is separated from the container. Further, the inner plug of Patent Document 2 has a deep groove in the outer cylinder, a gripping piece and a thin-walled portion facing each other through the deep groove, and a broken portion formed along both sides of the gripping piece. The deep groove is separated into a gripping piece and a thin-walled portion from the thick portion of the outer cylinder, and the gripping piece protrudes from the outer cylinder due to the breakage of the broken portion, so that the gripping piece can be easily pinched. Further, the inner plug (injection plug) of Patent Document 3 has a plurality of split grooves in the first fitting cylinder, and is easily separated from the container. In the inner plug of Patent Document 3, the first fitting cylinder on the lower side of the inner plug is engaged with the second fitting cylinder of the sealing member, so that the inner plug cannot be easily removed from the container. The second fitting cylinder of the sealing member is attached via the peripheral wall of the cap portion and the first breaking line before opening the container, but after opening, it is separated from the cap portion and the inner plug is inserted. It remains engaged with the first fitting cylinder. When the inner plug is separated from the container, the inner plug can be easily pulled out by breaking and removing the second fitting cylinder of the sealing member.

しかしながら、特許文献１及び２では、中栓を容器から分離するための破断部分が露出した状態であり、落下等の衝撃により破断するおそれがある。また、特許文献３では、中栓の周囲を封緘部材で囲っているものの、この封緘部材に破断部分が露出した状態であり、この場合も落下等の衝撃により破断するおそれがある。 However, in Patent Documents 1 and 2, the broken portion for separating the inner plug from the container is exposed, and there is a risk of breaking due to an impact such as dropping. Further, in Patent Document 3, although the inner plug is surrounded by a sealing member, the broken portion is exposed in the sealing member, and in this case as well, there is a risk of breaking due to an impact such as dropping.

実開平６−６５２５８号公報Jikkenhei 6-65258 特開２００２−６８２３９号公報JP-A-2002-68239 特開平１１−１６５７５２号公報JP-A-11-165752

本発明は、中栓の嵌合状態を補強しつつ、使用後に中栓等を容器から容易に分離できる容器の封止装置を提供することを目的とする。 An object of the present invention is to provide a container sealing device capable of easily separating the inner plug and the like from the container after use while reinforcing the fitted state of the inner plug.

上記目的を解決するために、本発明に係る容器の封止装置は、容器に取り付けられる中栓と、中栓を覆う上蓋とを備える容器の封止装置であって、上蓋は、中栓を着脱可能に覆う蓋本体と、蓋本体の開口側に隣接して配置されるバンド部とを有し、バンド部は、中栓を周囲から嵌合するように保持するとともに、開栓前に破断部を介して蓋本体と連結され、開栓後に破断部が切り離されて蓋本体から分離し、中栓は、根元側に容器と嵌合する嵌合部を有し、嵌合部は、破断を可能にする薄肉部と、薄肉部に隣接して薄肉部の破断を誘発するタブ部とを有し、タブ部は、嵌合部の頂部側を基点として上蓋の回転軸に対して傾斜して突出し、バンド部は、薄肉部に外力が加わることを防止するように嵌合部を周囲から締め付けるように支持する。ここで、開栓とは、上蓋に設けられた破断部を切断し、容器の内容物を抽出可能にする最初の動作を意味する。また、外力としては、輸送時の振動により製品同士がぶつかることで生じる力や、棚等から落下したときの衝撃によって生じる力等がある。 In order to solve the above object, the container sealing device according to the present invention is a container sealing device including an inner plug attached to the container and an upper lid covering the inner plug, and the upper lid has an inner plug. It has a lid body that covers it detachably and a band part that is arranged adjacent to the opening side of the lid body, and the band part holds the inner plug so that it fits from the surroundings and breaks before opening. It is connected to the lid body via the part, the broken part is separated after opening and separated from the lid body , the inner plug has a fitting part to be fitted with the container on the root side, and the fitting part is broken. It has a thin-walled portion that enables the above, and a tab portion that is adjacent to the thin-walled portion and induces breakage of the thin-walled portion, and the tab portion is inclined with respect to the rotation axis of the upper lid with the top side of the fitting portion as a base point. The band portion is supported so as to tighten the fitting portion from the surroundings so as to prevent an external force from being applied to the thin-walled portion . Here, the opening means the first operation of cutting the broken portion provided on the upper lid so that the contents of the container can be extracted. Further, the external force includes a force generated by the products colliding with each other due to vibration during transportation, a force generated by the impact when dropped from a shelf or the like, and the like.

上記容器の封止装置では、バンド部によって簡易な開栓確認が可能であるだけでなく、
バンド部で中栓を周囲から嵌合するように保持することにより、容器の開栓前及び使用時に中栓が容器から脱落することを防止できる。また、開栓時に上蓋の回転とともに中栓が回転する供回りを抑制できる。また、中栓を周囲から保護し、落下の衝撃等によって中栓が破損することを防止できる。
また、嵌合部は薄肉部の箇所において破損しやすいものの、薄肉部に外力が加わることを防止するように嵌合部をバンド部で支持することで、バンド部を除去するまでは嵌合部の強度を補強することができる。
また、嵌合部が薄肉部に隣接して薄肉部の破断を誘発するタブ部を有することにより、タブ部を利用して薄肉部を容易に破断することができ、中栓を容器からより分離しやすくすることができる。
また、タブ部が嵌合部の頂部側を基点として上蓋の回転軸に対して傾斜して突出することにより、バンド部で嵌合部を周囲から嵌合するように保持する際に、上蓋の締め込み動作に伴ってタブ部を嵌合部内に収納することができる。 In the container sealing device, not only is it possible to easily confirm the opening of the container by the band part, but also
By holding the inner plug so as to fit from the surroundings with the band portion, it is possible to prevent the inner plug from falling out of the container before opening the container and during use. In addition, it is possible to suppress the rotation of the inner plug as the upper lid rotates when the cap is opened. In addition, the inner plug can be protected from the surroundings and the inner plug can be prevented from being damaged by the impact of dropping or the like.
In addition, although the fitting portion is easily damaged at the thin-walled portion, by supporting the fitting portion with the band portion so as to prevent an external force from being applied to the thin-walled portion, the fitting portion is supported until the band portion is removed. Can reinforce the strength of.
Further, since the fitting portion has a tab portion adjacent to the thin-walled portion to induce breakage of the thin-walled portion, the thin-walled portion can be easily broken by using the tab portion, and the inner plug can be further separated from the container. Can be made easier.
Further, when the tab portion is inclined and protrudes with respect to the rotation axis of the upper lid with the top side of the fitting portion as a base point, the fitting portion is held so as to be fitted from the surroundings by the band portion. The tab portion can be stored in the fitting portion along with the tightening operation.

本発明の具体的な側面では、上記容器の封止装置において、嵌合部の外壁部は、内側面に容器に係合する突起部を有し、外側面において突起部に対応する領域の少なくとも一部を含む位置に凸部を有する。この場合、バンド部が中栓に組み付けられた際に、内向きの力（具体的には、容器と中栓との嵌合力）がより強くなり、容器と中栓との嵌合がより強固になる。 In a specific aspect of the present invention, in the sealing device of the container, the outer wall of the fitting portion has a protrusion that engages the container to the inner surface, at least in the area corresponding to the protrusion at the outer surface It has a convex portion at a position including a part. In this case, when the band portion is assembled to the inner plug, the inward force (specifically, the fitting force between the container and the inner plug) becomes stronger, and the fitting between the container and the inner plug becomes stronger. become.

本発明のさらに別の側面では、薄肉部は、前記嵌合部の外壁部を横断するとともに嵌合部の頂部の少なくとも一部に円弧状に設けられる。この場合、薄肉部のうち外壁部を横断する部分において外壁部の環を切断して開放することができるとともに、頂部の円弧状の部分により容器の口部に沿って嵌合部を破断することができる。これにより、嵌合部と容器との密着が抑制され、中栓が容器から分離しやすくなる。 In yet another aspect of the present invention, the thin portion is provided across the outer wall portion of the fitting portion and at least a part of the top of the fitting portion in an arc shape. In this case, the ring of the outer wall portion can be cut and opened at the portion of the thin-walled portion that crosses the outer wall portion, and the fitting portion is broken along the mouth portion of the container by the arc-shaped portion at the top. Can be done. As a result, the close contact between the fitting portion and the container is suppressed, and the inner plug can be easily separated from the container.

本発明のさらに別の側面では、タブ部は、バンド部の取り付け前において、嵌合部から外側に突出する。この場合、中栓の分離の際に、ユーザーに対して指でタブ部をつまみやすくすることができる。このタブ部は、容器の開栓前及び使用時にタブ部をバンド部の支持によって嵌合部内に収納することができ、中栓を分離するまで邪魔にならない。 In yet another aspect of the invention, the tab portion projects outward from the fitting portion prior to attachment of the band portion. In this case, when separating the inner plug, it is possible to make it easier for the user to pinch the tab portion with a finger. This tab portion can be housed in the fitting portion by supporting the band portion before opening the container and during use, and does not get in the way until the inner plug is separated.

本発明のさらに別の側面では、タブ部は、バンド部の取り付け後において薄肉部のうち嵌合部の外壁部の外側に形成された凹部に収納されている。この場合、タブ部を効率的に収納でき、バンド部等をより小型化できる。 In yet another aspect of the present invention, the tab portion is housed in a recess formed outside the outer wall portion of the fitting portion in the thin-walled portion after the band portion is attached. In this case, the tab portion can be efficiently stored, and the band portion and the like can be further miniaturized.

本発明のさらに別の側面では、中栓は、容器内の内容物が注出される抽出口を密封する分離部を有し、分離部は、容器の開栓後に上蓋に保持される。この場合、分離後の分離部が別途ごみになることを防止できる。 In yet another aspect of the invention, the inner plug has a separating part that seals the extraction port from which the contents in the container are poured, and the separating part is held by the upper lid after opening the container. In this case, it is possible to prevent the separated portion after separation from becoming separate dust .

本実施形態に係る容器の封止装置を説明する斜視図である。It is a perspective view explaining the container sealing device which concerns on this embodiment. 図１の容器の封止装置を説明する断面図である。It is sectional drawing explaining the sealing device of the container of FIG. （Ａ）及び（Ｂ）は、図１の容器の封止装置の断面図及び底面図である。(A) and (B) are a cross-sectional view and a bottom view of the container sealing device of FIG. （Ａ）及び（Ｂ）は、中栓の断面図及び平面図である。(A) and (B) are a cross-sectional view and a plan view of the inner plug. （Ａ）及び（Ｂ）は、上蓋の断面図及び底面図である。(A) and (B) are a cross-sectional view and a bottom view of the upper lid. （Ａ）及び（Ｂ）は、中栓のタブ部を説明する断面図である。(A) and (B) are sectional views explaining the tab part of an inner plug. （Ａ）及び（Ｂ）は、図１の容器の封止装置の部分拡大断面図である。(A) and (B) are partially enlarged cross-sectional views of the container sealing device of FIG. （Ａ）は、中栓のタブ部を説明する拡大斜視図であり、（Ｂ）は、中栓のタブ部付近の拡大底面図である。(A) is an enlarged perspective view for explaining the tab portion of the inner plug, and (B) is an enlarged bottom view of the vicinity of the tab portion of the inner plug. 容器の封止装置の開栓後の状態を示した図である。It is a figure which showed the state after opening of the sealing device of a container. 図１の容器の封止装置の変形例を説明する断面図である。It is sectional drawing explaining the modification of the container sealing apparatus of FIG. （Ａ）及び（Ｂ）は、中栓の変形例を説明する部分断面図及び平面図である。(A) and (B) are partial cross-sectional views and plan views for explaining the modification of the inner plug.

図１乃至図９を参照して、本発明に係る容器の封止装置の具体的な一実施形態について説明する。 A specific embodiment of the container sealing device according to the present invention will be described with reference to FIGS. 1 to 9.

図１及び図２に示すように、容器の封止装置１００は、容器１の口部１ａに嵌着等によって係止される中栓１０と、中栓１０の抽出口１０ａを覆うようにして中栓１０に螺着される上蓋２０とによって構成されている。 As shown in FIGS. 1 and 2, the container sealing device 100 covers the inner plug 10 which is locked to the mouth portion 1a of the container 1 by fitting or the like, and the extraction port 10a of the inner plug 10. It is composed of an upper lid 20 screwed to the inner plug 10.

図１、図２、図３（Ａ）、３（Ｂ）、図４（Ａ）、及び４（Ｂ）に示すように、中栓１０は、樹脂製の一体成形品であり、容器１に係止又は固定される本体部分１１と、容器１の開栓後に中栓１０から分離される分離部１２とを備える。 As shown in FIGS. 1, 2, 3 (A), 3 (B), 4 (A), and 4 (B), the inner plug 10 is an integrally molded resin product, and is placed in the container 1. It includes a main body portion 11 that is locked or fixed, and a separation portion 12 that is separated from the inner plug 10 after the container 1 is opened.

中栓１０のうち本体部分１１は、第１筒状部１１ａと、第２筒状部１１ｂと、フランジ部１１ｃと、外壁部１１ｄとを有する。第２筒状部１１ｂ、フランジ部１１ｃ、及び外壁部１１ｄによって、容器１の口部１ａと嵌合する嵌合部１５が画成されている。つまり、中栓１０は、根元側に容器１と嵌合する嵌合部１５を有する。 The main body portion 11 of the inner plug 10 has a first tubular portion 11a, a second tubular portion 11b, a flange portion 11c, and an outer wall portion 11d. The fitting portion 15 that fits with the mouth portion 1a of the container 1 is defined by the second tubular portion 11b, the flange portion 11c, and the outer wall portion 11d. That is, the inner plug 10 has a fitting portion 15 that fits with the container 1 on the root side.

第１筒状部１１ａは、容器１の内容物を抽出する抽出口１０ａ、すなわち開口部２を形成するものであり、本体部分１１の最も内側において中栓１０の軸心ＡＸに沿って延びる円筒状の部材である。第２筒状部１１ｂは、第１筒状部１１ａの外側に設けられ、中栓１０の軸心ＡＸに沿って延びる円筒状の部材である。第２筒状部１１ｂは、中間部内周面から連結部１１ｅを介して第１筒状部１１ａに連結されている。第１筒状部１１ａの上端には、外側に広がるリップ部１３が形成されている。リップ部１３は、容器１内の内容物、例えば液体を注ぎ出す際の液切れを良くする。第２筒状部１１ｂの外周面のうちフランジ部１１ｃより上側には、後述する上蓋２０の周壁部２１ａに設けられた雌ねじ２２と螺合する雄ねじ１４が形成されている。フランジ部１１ｃは、第２筒状部１１ｂの下寄り部分から半径方向外側に張り出す円環状の部材である。外壁部１１ｄは、フランジ部１１ｃの外端から下方に延びる部材である。外壁部１１ｄの外側には、後述する上蓋２０のバンド部２０ｂが嵌合している。図４（Ｂ）に示すように、外壁部１１ｄの外周中段の上面には、上蓋２０に形成された後述するラチェット爪ＲＴ２（図５（Ｂ）参照）と噛み合う複数のラチェット爪ＲＴ１が形成されている。ラチェット爪ＲＴ１，ＲＴ２の組み合わせによって、上蓋２０を後述する蓋本体２０ａ及びバンド部２０ｂを一体とした破断前の状態で、一方向、具体的には時計方向に回転するようにしている。ただし、バンド部２０ｂは、ラチェット爪ＲＴ１，ＲＴ２によって反時計方向の回転が阻止される。嵌合部１５のうち外壁部１１ｄの内側面には、口部１ａと係合する突起部１５ａが形成されている。また、外壁部１１ｄの外側面には、突起部１５ａに対応する領域の少なくとも一部を含む位置に凸部１５ｂが形成されている。凸部１５ｂは、容器１と中栓１０との嵌合力を維持する位置に設けられ、具体的には、例えば、突起部１５ａの上端又は下端に対応する領域を跨ぐ位置や、突起部１５ａに対応する領域の全体等に設けられる。凸部１５ｂは、外壁部１１ｄの全周に設けられていることが望ましい。この凸部１５ｂにより、バンド部２０ｂが中栓１０に組み付けられた際に、内向きの力（具体的には、容器１と中栓１０との嵌合力）がより強くなり、容器１と中栓１０との嵌合がより強固になる。凸部１５ｂは、外壁部１１ｄ中段から下側部分にかけての部分から例えば０．１〜０．５ｍｍ程度突出していればよい。 The first tubular portion 11a forms an extraction port 10a for extracting the contents of the container 1, that is, an opening 2, and is a cylinder extending along the axis AX of the inner plug 10 at the innermost side of the main body portion 11. It is a shaped member. The second tubular portion 11b is a cylindrical member provided on the outside of the first tubular portion 11a and extending along the axis AX of the inner plug 10. The second tubular portion 11b is connected to the first tubular portion 11a from the inner peripheral surface of the intermediate portion via the connecting portion 11e. A lip portion 13 extending outward is formed at the upper end of the first tubular portion 11a. The lip portion 13 improves the drainage of the contents in the container 1, for example, when pouring out the liquid. On the outer peripheral surface of the second tubular portion 11b, above the flange portion 11c, a male screw 14 screwing with a female screw 22 provided on the peripheral wall portion 21a of the upper lid 20, which will be described later, is formed. The flange portion 11c is an annular member that projects outward in the radial direction from the lower portion of the second tubular portion 11b. The outer wall portion 11d is a member extending downward from the outer end of the flange portion 11c. A band portion 20b of the upper lid 20, which will be described later, is fitted to the outside of the outer wall portion 11d. As shown in FIG. 4 (B), a plurality of ratchet claws RT1 that mesh with the ratchet claws RT2 (see FIG. 5 (B)) to be described later formed on the upper lid 20 are formed on the upper surface of the outer peripheral middle stage of the outer wall portion 11d. ing. By combining the ratchet claws RT1 and RT2, the upper lid 20 is rotated in one direction, specifically in the clockwise direction, in a state before breaking in which the lid body 20a and the band portion 20b, which will be described later, are integrated. However, the band portion 20b is prevented from rotating counterclockwise by the ratchet claws RT1 and RT2. A protrusion 15a that engages with the mouth portion 1a is formed on the inner surface of the outer wall portion 11d of the fitting portion 15. Further, on the outer surface of the outer wall portion 11d, a convex portion 15b is formed at a position including at least a part of a region corresponding to the protrusion portion 15a. The convex portion 15b is provided at a position for maintaining the fitting force between the container 1 and the inner plug 10, and specifically, for example, at a position straddling a region corresponding to the upper end or the lower end of the protruding portion 15a or at the protruding portion 15a. It is provided in the entire corresponding area. It is desirable that the convex portion 15b is provided on the entire circumference of the outer wall portion 11d. Due to the convex portion 15b, when the band portion 20b is assembled to the inner plug 10, the inward force (specifically, the fitting force between the container 1 and the inner plug 10) becomes stronger, and the container 1 and the middle plug 10 become stronger. The fitting with the stopper 10 becomes stronger. The convex portion 15b may protrude from the portion of the outer wall portion 11d from the middle stage to the lower portion, for example, by about 0.1 to 0.5 mm.

図４（Ｂ）、図６（Ａ）、６（Ｂ）、図７（Ｂ）、図８（Ａ）、及び８（Ｂ）に示すように、嵌合部１５は、嵌合部１５の破断を可能にする薄肉部ＴＭを有する。薄肉部ＴＭは、嵌合部１５の外壁部１１ｄを横断するとともに、嵌合部１５の頂部であるフランジ部１１ｃの少なくとも一部に円弧状に設けられている。つまり、薄肉部ＴＭは、フランジ部１１ｃの第１薄肉部ＴＭ１と外壁部１１ｄの第２薄肉部ＴＭ２とで構成されている。第２薄肉部ＴＭ２の第１薄肉部ＴＭ１の開始点側の軸心ＡＸ方向の一辺には、外壁部１１ｄの破断を誘発する破断部１１ｇが形成されている。図８（Ｂ）に示すように、本実施形態において、破断部１１ｇは、軸心ＡＸに垂直な断面において、第２薄肉部ＴＭ２の外側に例えばＵ字形状を有している。破断部１１ｇの厚さは、第２薄肉部ＴＭ２の厚さよりも薄くなっている。図７（Ｂ）等に示すように、本実施形態において、第１薄肉部ＴＭ１は、フランジ部１１ｃ付近の軸心ＡＸを通る断面（つまり、軸心ＡＸに平行な断面）において、フランジ部１１ｃの内側に例えば楔形状を有している。薄肉部ＴＭのうち外壁部１１ｄを横断する部分（第２薄肉部ＴＭ２）において外壁部１１ｄの環を切断して開放することができるとともに、フランジ部１１ｃの外縁に沿った円弧状の部分（第１薄肉部ＴＭ１）により容器１の口部１ａに沿って嵌合部１５を破断することができる。これにより、嵌合部１５と容器１との密着が抑制され、中栓１０が容器１から分離しやすくなる。薄肉部ＴＭは、これを破断することで嵌合部１５の締め付けが緩まり、中栓１０が容器１から抜けやすくなる範囲に設けられていればよい。具体的には、第１薄肉部ＴＭ１は、中栓１０の軸心ＡＸを基準軸として、フランジ部１１ｃの円周に沿って、例えば９０°〜１８０°程度に設けられている。また、第２薄肉部ＴＭ２は、外壁部１１ｄのうち後述するタブ部ＴＢが収納される凹部１１ｈの領域に設けられている。 As shown in FIGS. 4 (B), 6 (A), 6 (B), 7 (B), 8 (A), and 8 (B), the fitting portion 15 is the fitting portion 15. It has a thin-walled part TM that enables breakage. The thin-walled portion TM crosses the outer wall portion 11d of the fitting portion 15 and is provided in an arc shape at least a part of the flange portion 11c which is the top of the fitting portion 15. That is, the thin-walled portion TM is composed of a first thin-walled portion TM1 of the flange portion 11c and a second thin-walled portion TM2 of the outer wall portion 11d. A broken portion 11g that induces breaking of the outer wall portion 11d is formed on one side of the second thin portion TM2 in the axial center AX direction on the start point side of the first thin portion TM1. As shown in FIG. 8B, in the present embodiment, the broken portion 11g has, for example, a U-shape on the outside of the second thin-walled portion TM2 in a cross section perpendicular to the axis AX. The thickness of the broken portion 11g is thinner than the thickness of the second thin-walled portion TM2. As shown in FIG. 7B and the like, in the present embodiment, the first thin-walled portion TM1 has a flange portion 11c in a cross section passing through the axial center AX near the flange portion 11c (that is, a cross section parallel to the axial center AX). It has, for example, a wedge shape inside. The ring of the outer wall portion 11d can be cut and opened at the portion of the thin-walled portion TM that crosses the outer wall portion 11d (second thin-walled portion TM2), and an arc-shaped portion along the outer edge of the flange portion 11c (second thin-walled portion TM2). The fitting portion 15 can be broken along the mouth portion 1a of the container 1 by the thin-walled portion TM1). As a result, the close contact between the fitting portion 15 and the container 1 is suppressed, and the inner plug 10 can be easily separated from the container 1. The thin-walled portion TM may be provided in a range in which the fitting portion 15 is loosened by breaking the thin-walled portion TM and the inner plug 10 can be easily removed from the container 1. Specifically, the first thin-walled portion TM1 is provided at, for example, about 90 ° to 180 ° along the circumference of the flange portion 11c with the axial center AX of the inner plug 10 as a reference axis. Further, the second thin-walled portion TM2 is provided in the region of the recess 11h in the outer wall portion 11d where the tab portion TB described later is housed.

図３（Ｂ）、図４（Ｂ）、図６（Ａ）、６（Ｂ）、図７（Ｂ）、図８（Ａ）、及び８（Ｂ）に示すように、嵌合部１５は、薄肉部ＴＭに隣接又は対向して薄肉部ＴＭの破断を誘発するタブ部ＴＢを有する。この場合、タブ部ＴＢを利用して薄肉部ＴＭを容易に破断することができ、中栓１０を容器１からより分離しやすくすることができる。タブ部ＴＢは、薄肉部ＴＭの端部（嵌合部１５の頂部側、すなわちフランジ部１１ｃとの境界部）に連設されている。図６（Ｂ）に示すように、タブ部ＴＢは、後述する上蓋２０のバンド部２０ｂの取り付け前又は除去後において、嵌合部１５のうち外壁部１１ｄから外側に突出している。これにより、中栓１０の分離の際に、ユーザーに対して指でタブ部ＴＢをつまみやすくすることができる。タブ部ＴＢは、バンド部２０ｂの取り付け後において、薄肉部ＴＭのうち嵌合部１５の外壁部１１ｄの外側に形成された凹部１１ｈに収容される（図７（Ｂ）及び図８参照）。これにより、タブ部ＴＢは、容器１の開栓前及び使用時にバンド部２０ｂの支持によって嵌合部１５内に収納された状態とすることができ、中栓１０を分離するまで邪魔にならない。よって、非使用時にタブ部ＴＢを効率的に収容でき、バンド部２０ｂ等をより小型化できる。タブ部ＴＢは、具体的には、嵌合部１５の頂部側、すなわちフランジ部１１ｃを基点として上蓋２０の回転軸ＢＸ（又は中栓１０の軸心ＡＸ）に対して傾斜して突出している。この場合、バンド部２０ｂで嵌合部１５、具体的には外壁部１１ｄを周囲から嵌合するように保持する際に、上蓋２０の締め込み動作に伴ってタブ部ＴＢを嵌合部１５内に収納することができる。つまり、タブ部ＴＢをバンド部２０ｂで折り畳みながら上蓋２０を締め込むことができる。 As shown in FIGS. 3 (B), 4 (B), 6 (A), 6 (B), 7 (B), 8 (A), and 8 (B), the fitting portion 15 is , It has a tab portion TB that induces breakage of the thin-walled portion TM adjacent to or facing the thin-walled portion TM. In this case, the thin-walled portion TM can be easily broken by using the tab portion TB, and the inner plug 10 can be more easily separated from the container 1. The tab portion TB is continuously provided at the end portion of the thin-walled portion TM (the top side of the fitting portion 15, that is, the boundary portion with the flange portion 11c). As shown in FIG. 6B, the tab portion TB protrudes outward from the outer wall portion 11d of the fitting portion 15 before or after the band portion 20b of the upper lid 20 described later is attached or removed. As a result, when the inner plug 10 is separated, the tab portion TB can be easily pinched by the user with a finger. After the band portion 20b is attached, the tab portion TB is housed in the recess 11h formed outside the outer wall portion 11d of the fitting portion 15 in the thin-walled portion TM (see FIGS. 7 (B) and 8). As a result, the tab portion TB can be in a state of being housed in the fitting portion 15 by the support of the band portion 20b before opening the container 1 and during use, and does not get in the way until the inner plug 10 is separated. Therefore, the tab portion TB can be efficiently accommodated when not in use, and the band portion 20b and the like can be further miniaturized. Specifically, the tab portion TB projects at an angle with respect to the rotation axis BX of the upper lid 20 (or the axis AX of the inner plug 10) with the top side of the fitting portion 15, that is, the flange portion 11c as a base point. .. In this case, when the band portion 20b holds the fitting portion 15, specifically the outer wall portion 11d so as to be fitted from the surroundings, the tab portion TB is moved into the fitting portion 15 as the upper lid 20 is tightened. Can be stored in. That is, the upper lid 20 can be tightened while folding the tab portion TB with the band portion 20b.

分離部１２は、封止体１２ａと、第３筒状部１２ｂとを有する。封止体１２ａは、分離部１２の底部に配置された円板状の部材である。分離部１２は、容器１内の内容物が注出される抽出口１０ａを密封する部材である。第３筒状部１２ｂは、封止体１２ａの外縁から上方に延びる円筒状の部材である。図７（Ａ）に拡大して示すように、封止体１２ａの外縁と第３筒状部１２ｂの下端部との外周側境界部は、環状の連結部１６を介して本体部分１１に連結している。連結部１６の下面には、環状のノッチ１７が形成されている。ノッチ１７は、容器１の開栓時に切断されるスコアー１７ａの一部となっている。連結部１６は、開栓時に上蓋２０を緩めること、具体的には反時計方向に回転させることにより切断される。第３筒状部１２ｂは、本体部分１１の第１筒状部１１ａの内部に同芯で離間して配置されている。第３筒状部１２ｂの内周面には、上蓋２０の小径筒部２１ｄに設けられた雄ねじ２３と螺合する雌ねじ１８が形成されている。分離部１２は、容器１の開栓後に上蓋２０に保持される。これにより、分離後の分離部１２が別途ごみになることを防止できる。 The separating portion 12 has a sealing body 12a and a third tubular portion 12b. The sealing body 12a is a disk-shaped member arranged at the bottom of the separating portion 12. The separation unit 12 is a member that seals the extraction port 10a into which the contents in the container 1 are poured out. The third tubular portion 12b is a cylindrical member extending upward from the outer edge of the sealing body 12a. As shown enlarged in FIG. 7A, the outer peripheral side boundary portion between the outer edge of the sealing body 12a and the lower end portion of the third tubular portion 12b is connected to the main body portion 11 via the annular connecting portion 16. doing. An annular notch 17 is formed on the lower surface of the connecting portion 16. The notch 17 is a part of the score 17a that is cut when the container 1 is opened. The connecting portion 16 is cut by loosening the upper lid 20 at the time of opening, specifically by rotating it counterclockwise. The third tubular portion 12b is concentrically and spaced apart from the inside of the first tubular portion 11a of the main body portion 11. On the inner peripheral surface of the third tubular portion 12b, a female screw 18 screwing with the male screw 23 provided on the small diameter tubular portion 21d of the upper lid 20 is formed. The separating portion 12 is held by the upper lid 20 after opening the container 1. As a result, it is possible to prevent the separated portion 12 after separation from becoming separate dust.

図２、図３（Ａ）、３（Ｂ）、図５（Ａ）、５（Ｂ）、及び図７（Ｂ）に示すように、上蓋２０は、樹脂製の一体成形品であり、中栓１０を着脱可能に覆う蓋本体２０ａと、蓋本体２０ａの開口側に隣接して配置されるバンド部２０ｂとを備える。上蓋２０は、容器１の口部１ａを覆って、容器１の内部を埃、水気等の外部環境から保護する。蓋本体２０ａは、開栓前において、破断部２０ｃを介してバンド部２０ｂと連結されている。破断部２０ｃは、ラチェット部２０ｒとともに連結部２０ｊを構成している。ラチェット部２０ｒは、蓋本体２０ａの時計方向の回転に伴ってバンド部２０ｂも時計方向に回転するように補助する。蓋本体２０ａは、蓋本体２０ａを反時計方向に回転させる開栓後に破断部２０ｃが切り離されてバンド部２０ｂから分離する。開栓前に蓋本体２０ａとバンド部２０ｂとが連結していることにより、開栓の有無を視認又は確認することができる。蓋本体２０ａは、外観を形成する円筒状の周壁部２１ａと、当該周壁部２１ａと同芯で内部に、大径筒部２１ｂと、中径筒部２１ｃと、小径筒部２１ｄとを有する。周壁部２１ａ、大径筒部２１ｂ、中径筒部２１ｃ、及び小径筒部２１ｄは、円板状の天井壁２１ｅによって連設されている。周壁部２１ａの下端には、その外縁から半径方向外側に張り出す円環状のフランジ部２１ｆが設けられている。フランジ部２１ｆは、上蓋２０を締め込んだ状態において、中栓１０のフランジ部１１ｃの少なくとも一部に当接している。これにより、上蓋２０のフランジ部２１ｆは、中栓１０のフランジ部１１ｃに形成された薄肉部ＴＭ１が、容器１への打栓時又は外力受容時に切断・変形することが無いよう保護している。なお、上蓋２０のフランジ部２１ｆは、タブ部ＴＢ付近において、第１薄肉部ＴＭ１及びその外側と当接していることが望ましい。また、フランジ部２１ｆは、第１薄肉部ＴＭ１全体を横断するように当接することがより望ましい。容器１の突起部１ｂが中栓１０の突起部１５ａを乗り越えるときに中栓１０の外壁部１１ｄに外向きの力が働くが、第１薄肉部ＴＭ１とフランジ部２１ｆとの当接により、タブ部ＴＢがずれて第１薄肉部ＴＭ１が切断されることを防止することができる。周壁部２１ａの内周面には、中栓１０の第２筒状部１１ｂの外周面に形成された雄ねじ１４に螺合する雌ねじ２２が形成されている。小径筒部２１ｄの外周面には、中栓１０の第３筒状部１２ｂの内周面に形成された雌ねじ１８に螺合する雄ねじ２３が形成されている。 As shown in FIGS. 2, 3 (A), 3 (B), 5 (A), 5 (B), and 7 (B), the upper lid 20 is an integrally molded resin product, and is inside. A lid main body 20a that detachably covers the stopper 10 and a band portion 20b that is arranged adjacent to the opening side of the lid main body 20a are provided. The upper lid 20 covers the mouth portion 1a of the container 1 and protects the inside of the container 1 from the external environment such as dust and moisture. The lid body 20a is connected to the band portion 20b via the breaking portion 20c before opening the cap. The broken portion 20c constitutes a connecting portion 20j together with the ratchet portion 20r. The ratchet portion 20r assists the band portion 20b to rotate clockwise as the lid body 20a rotates clockwise. The lid body 20a is separated from the band portion 20b by separating the broken portion 20c after opening the lid body 20a by rotating it counterclockwise. By connecting the lid body 20a and the band portion 20b before opening the lid, the presence or absence of opening can be visually confirmed or confirmed. The lid main body 20a has a cylindrical peripheral wall portion 21a forming an appearance, a large-diameter tubular portion 21b, a medium-diameter tubular portion 21c, and a small-diameter tubular portion 21d inside the same core as the peripheral wall portion 21a. The peripheral wall portion 21a, the large-diameter tubular portion 21b, the medium-diameter tubular portion 21c, and the small-diameter tubular portion 21d are continuously provided by a disk-shaped ceiling wall 21e. At the lower end of the peripheral wall portion 21a, an annular flange portion 21f that projects outward in the radial direction from the outer edge thereof is provided. The flange portion 21f is in contact with at least a part of the flange portion 11c of the inner plug 10 in a state where the upper lid 20 is tightened. As a result, the flange portion 21f of the upper lid 20 protects the thin-walled portion TM1 formed on the flange portion 11c of the inner plug 10 from being cut or deformed when the container 1 is plugged or when an external force is received. .. It is desirable that the flange portion 21f of the upper lid 20 is in contact with the first thin-walled portion TM1 and the outside thereof in the vicinity of the tab portion TB. Further, it is more desirable that the flange portion 21f abuts so as to cross the entire first thin-walled portion TM1. When the protrusion 1b of the container 1 gets over the protrusion 15a of the inner plug 10, an outward force acts on the outer wall portion 11d of the inner plug 10, but due to the contact between the first thin-walled portion TM1 and the flange portion 21f, the tab It is possible to prevent the portion TB from being displaced and the first thin-walled portion TM1 from being cut. On the inner peripheral surface of the peripheral wall portion 21a, a female screw 22 screwed into a male screw 14 formed on the outer peripheral surface of the second tubular portion 11b of the inner plug 10 is formed. On the outer peripheral surface of the small-diameter tubular portion 21d, a male screw 23 screwed into a female screw 18 formed on the inner peripheral surface of the third tubular portion 12b of the inner plug 10 is formed.

バンド部２０ｂは、中栓１０を周囲から嵌合するように保持する部材である。具体的には、バンド部２０ｂは、中栓１０の薄肉部ＴＭに外力が加わることを防止するように、嵌合部１５の外壁部１１ｄを周囲から締め付けるように支持する。中栓１０の嵌合部１５は薄肉部ＴＭの箇所において破損しやすいものの、薄肉部ＴＭに外力が加わることを防止するように外壁部１１ｄをバンド部２０ｂで支持することで、バンド部２０ｂを除去するまでは嵌合部１５の強度を補強することができる。図５（Ａ）及び５（Ｂ）に示すように、バンド部２０ｂの内周面上部には、中栓１０のラチェット爪ＲＴ１に噛み合う複数のラチェット爪ＲＴ２が形成されている。バンド部２０ｂは、図示の例では外壁部１１ｄの全周を全体的に覆っているが、外壁部１１ｄの上下全体を覆わずに、中栓１０の嵌合力を維持する程度の面積を有していればよい。 The band portion 20b is a member that holds the inner plug 10 so as to be fitted from the surroundings. Specifically, the band portion 20b supports the outer wall portion 11d of the fitting portion 15 so as to be tightened from the periphery so as to prevent an external force from being applied to the thin portion TM of the inner plug 10. Although the fitting portion 15 of the inner plug 10 is easily damaged at the thin-walled portion TM, the band portion 20b is supported by supporting the outer wall portion 11d with the band portion 20b so as to prevent an external force from being applied to the thin-walled portion TM. The strength of the fitting portion 15 can be reinforced until it is removed. As shown in FIGS. 5A and 5B, a plurality of ratchet claws RT2 that mesh with the ratchet claws RT1 of the inner plug 10 are formed on the upper part of the inner peripheral surface of the band portion 20b. In the illustrated example, the band portion 20b covers the entire circumference of the outer wall portion 11d, but has an area sufficient to maintain the fitting force of the inner plug 10 without covering the entire upper and lower sides of the outer wall portion 11d. I just need to be there.

以上において、上蓋２０の周壁部２１ａの雌ねじ２２と、中栓１０の第２筒状部１１ｂの雄ねじ１４とは、上蓋２０の中栓１０に対する着脱を可能にする第１螺合部５１を構成している。また、中栓１０の第３筒状部１２ｂの雌ねじ１８と、上蓋２０の小径筒部２１ｄの雄ねじ２３とは、中栓１０のうち分離部１２を上蓋２０の小径筒部２１ｄに締め付けて固定するための第２螺合部５２を構成している。小径筒部２１ｄは、第２螺合部５２によって分離部１２を捕捉して当該分離部１２を中栓１０から分離するための支持部として機能している。第１螺合部５１と第２螺合部５２とは、互いに逆の螺進関係にある。すなわち、上蓋２０の周壁部２１ａを上側から見て反時計方向に回転させることで、第１螺合部５１が緩むようにねじ戻される場合、上蓋２０の小径筒部２１ｄを上側から見て反時計方向に回転させることになって、第２螺合部５２が締め込まれる。 In the above, the female screw 22 of the peripheral wall portion 21a of the upper lid 20 and the male screw 14 of the second tubular portion 11b of the inner plug 10 form a first screwed portion 51 that can be attached to and detached from the inner plug 10 of the upper lid 20. doing. Further, the female screw 18 of the third tubular portion 12b of the inner plug 10 and the male screw 23 of the small diameter tubular portion 21d of the upper lid 20 are fixed by tightening the separating portion 12 of the inner plug 10 to the small diameter tubular portion 21d of the upper lid 20. A second screwed portion 52 is formed for this purpose. The small-diameter tubular portion 21d functions as a support portion for capturing the separating portion 12 by the second screwing portion 52 and separating the separating portion 12 from the inner plug 10. The first screwed portion 51 and the second screwed portion 52 have a spiraling relationship opposite to each other. That is, when the peripheral wall portion 21a of the upper lid 20 is rotated counterclockwise when viewed from above and the first screwed portion 51 is screwed back so as to loosen, the small diameter tubular portion 21d of the upper lid 20 is viewed counterclockwise when viewed from above. The second screw portion 52 is tightened so as to rotate in the direction.

図７（Ａ）に拡大して示すように、第２螺合部５２において、中栓１０の雌ねじ１８と、これに噛合する上蓋２０の雄ねじ２３とは、分離部１２を小径筒部２１ｄから引き抜くよりも分離部１２を小径筒部２１ｄに押し込むことを容易にするかえり形状の突起となっている。具体的には、雌ねじ１８は、軸心ＡＸを通る断面において、先端側で中栓１０の軸心ＡＸに沿った反螺進方向（下側）に偏った断面形状を有するねじ山を有する。また、雄ねじ２３は、軸心ＡＸを通る断面において、先端側で中栓１０の軸心ＡＸに沿った反螺進方向（上側）に偏った断面形状を有するねじ山を有する。雌ねじ１８及び雄ねじ２３は、縦断面において点対称に形成されている。なお、第１螺合部５１を構成する中栓１０の雄ねじ１４及び上蓋２０の雌ねじ２２は、かえり形状の突起を有していない。 As shown in an enlarged manner in FIG. 7A, in the second screw portion 52, the female screw 18 of the inner plug 10 and the male screw 23 of the upper lid 20 that mesh with the female screw 23 are separated from each other by separating the separation portion 12 from the small diameter tubular portion 21d. It is a burr-shaped protrusion that makes it easier to push the separation portion 12 into the small-diameter tubular portion 21d rather than pulling it out. Specifically, the female screw 18 has a screw thread having a cross-sectional shape biased in the counter-screw direction (lower side) along the axial center AX of the inner plug 10 on the tip side in the cross section passing through the axial center AX. Further, the male screw 23 has a screw thread having a cross-sectional shape biased in the counter-threading direction (upper side) along the axial center AX of the inner plug 10 on the tip end side in the cross section passing through the axial center AX. The female screw 18 and the male screw 23 are formed point-symmetrically in the vertical cross section. The male screw 14 of the inner plug 10 and the female screw 22 of the upper lid 20 constituting the first screwed portion 51 do not have a burr-shaped protrusion.

上蓋２０の小径筒部２１ｄの先端部２１ｇは、中栓１０の分離部１２の内面隅部１２ｃと当接している。小径筒部２１ｄの先端部２１ｇは、分離部１２と上蓋２０との間において、相互の組み付け間隔を規定するストッパーとして機能している。なお、中栓１０の第３筒状部１２ｂの先端部１２ｄが、上蓋２０の中径筒部２１ｃの基部と小径筒部２１ｄの基部との間に露出する天井壁２１ｅの下面２１ｈと当接していてもよい。この場合、第３筒状部１２ｂの先端部１２ｄもストッパーとして機能する。また、第３筒状部１２ｂの外周面と、中径筒部２１ｃの先端部２１ｉの内周面とは、互いに密着している。中径筒部２１ｃの外周面と、第１筒状部１１ａの先端部１１ｆの内側面とは、互いに密着している。また、中栓１０のリップ部１３は、天井壁２１ｅの下面２１ｈと当接している。これにより、開栓後の封止時には、容器１内を液密に保つことができる。また、中径筒部２１ｃの先端部２１ｉは、分離部１２の連結部１６に密着している。中径筒部２１ｃの先端部２１ｉを分離前に中栓１０の連結部１６に密着させておくことで、分離部１２を本体部分１１から分離した後の液漏れを防止することができる。 The tip portion 21g of the small-diameter tubular portion 21d of the upper lid 20 is in contact with the inner surface corner portion 12c of the separation portion 12 of the inner plug 10. The tip portion 21g of the small-diameter tubular portion 21d functions as a stopper that defines a mutual assembly interval between the separation portion 12 and the upper lid 20. The tip portion 12d of the third tubular portion 12b of the inner plug 10 comes into contact with the lower surface 21h of the ceiling wall 21e exposed between the base portion of the medium diameter tubular portion 21c of the upper lid 20 and the base portion of the small diameter tubular portion 21d. You may be. In this case, the tip portion 12d of the third tubular portion 12b also functions as a stopper. Further, the outer peripheral surface of the third tubular portion 12b and the inner peripheral surface of the tip portion 21i of the medium diameter tubular portion 21c are in close contact with each other. The outer peripheral surface of the medium-diameter tubular portion 21c and the inner surface of the tip portion 11f of the first tubular portion 11a are in close contact with each other. Further, the lip portion 13 of the inner plug 10 is in contact with the lower surface 21h of the ceiling wall 21e. As a result, the inside of the container 1 can be kept liquid-tight at the time of sealing after opening. Further, the tip portion 21i of the medium-diameter tubular portion 21c is in close contact with the connecting portion 16 of the separating portion 12. By bringing the tip portion 21i of the medium-diameter tubular portion 21c into close contact with the connecting portion 16 of the inner plug 10 before separation, it is possible to prevent liquid leakage after the separation portion 12 is separated from the main body portion 11.

容器１は、有底筒状成形品であって、図１及び図２に示すように、上端の口部１ａは、円筒状を成している。口部１ａの外周面には、中栓１０と係合する突起部１ｂが形成されている。容器１は、ガラス、合成樹脂等によって形成されている。 The container 1 is a bottomed tubular molded product, and as shown in FIGS. 1 and 2, the upper end portion 1a has a cylindrical shape. A protrusion 1b that engages with the inner plug 10 is formed on the outer peripheral surface of the mouth portion 1a. The container 1 is made of glass, synthetic resin, or the like.

以下、容器１の封止装置１００の組み立てについて説明する。封止装置１００を構成する中栓１０と上蓋２０とは、第１螺合部５１を係合、すなわち上蓋２０の雌ねじ２２に中栓１０の雄ねじ１４を係合させ、中栓１０を中栓１０側から見て時計方向に回転させ、又は上蓋２０を上蓋２０側から見て時計方向に回転させることによって螺合される。その際、第２螺合部５２を構成する中栓１０の雌ねじ１８と上蓋２０の雄ねじ２３とは、第１螺合部５１に対して逆ねじに形成されているが、ねじ１８，２３は上述のように押し込みに際して変形しやすい形状に形成されているため、互いに変形しながらねじ１８，２３を乗り越えて互いに噛合される。上蓋２０を時計方向に回転させると、上蓋２０のラチェット爪ＲＴ２は、中栓１０のラチェット爪ＲＴ１を乗り越える。ラチェット爪ＲＴ１，ＲＴ２は、反時計方向の回転を制御しており、時計方向に回転させる分には蓋本体２０ａ及びバンド部２０ｂが一体として回転する。上蓋２０の締め込みにより、上蓋２０は中栓１０に対して下方に移動し、バンド部２０ｂは中栓１０の嵌合部１５の外壁部１１ｄの外周面を覆って外周面と密着する。この際、中栓１０に形成されたタブ部ＴＢは折り畳まれながらバンド部２０ｂに支持され、嵌合部１５の外壁部１１ｄ内に収納される。封止装置１００が組み立てられた状態において、上蓋２０と中栓１０とは、略最も奥まで締め付けられて一体化される。本実施形態において、上蓋２０は、小径筒部２１ｄの先端部２１ｇが分離部１２の内面隅部１２ｃに当接又は近接する状態まで中栓１０内にねじ込まれる。図３（Ａ）に示すように、上蓋２０と中栓１０とが互いに係合された状態では、上蓋２０と中栓１０との間隔又はねじ込み量が調整されて固定される。第３筒状部１２ｂの先端部１２ｄは、中径筒部２１ｃの基部と小径筒部２１ｄの基部との間に形成される凹部２１ｊに収容される。また、第１筒状部１１ａの先端部１１ｆは、大径筒部２１ｂの基部と中径筒部２１ｃの基部との間に形成される凹部２１ｋに収容される。中径筒部２１ｃの先端部２１ｉは、第１筒状部１１ａの基部と第３筒状部１２ｂの基部との間に形成される凹部１２ｅに収容され、上蓋２０の中径筒部２１ｃの先端部２１ｉが中栓１０の連結部１６に当接する。また、第１筒状部１１ａの先端部１１ｆに形成されたリップ部１３は、上蓋２０の天井壁２１ｅの下面２１ｈに当接する。さらに、フランジ部２１ｆがフランジ部１１ｃに当接する。上蓋２０のねじ込みにおいて中栓１０を支持する際には、工具を利用することができる。 Hereinafter, the assembly of the sealing device 100 of the container 1 will be described. The inner plug 10 and the upper lid 20 constituting the sealing device 100 engage the first screwed portion 51, that is, the female screw 22 of the upper lid 20 is engaged with the male screw 14 of the inner plug 10, and the inner plug 10 is fitted with the inner plug 10. It is screwed by rotating it clockwise when viewed from the 10 side, or rotating the upper lid 20 clockwise when viewed from the upper lid 20 side. At that time, the female screw 18 of the inner plug 10 and the male screw 23 of the upper lid 20 constituting the second screwed portion 52 are formed as reverse threads with respect to the first screwed portion 51, but the screws 18 and 23 are formed. As described above, since the shape is formed so as to be easily deformed when pushed in, the screws 18 and 23 are overcome and meshed with each other while deforming each other. When the upper lid 20 is rotated clockwise, the ratchet claw RT2 of the upper lid 20 gets over the ratchet claw RT1 of the inner plug 10. The ratchet claws RT1 and RT2 control the rotation in the counterclockwise direction, and the lid body 20a and the band portion 20b rotate as a unit for the amount of rotation in the clockwise direction. By tightening the upper lid 20, the upper lid 20 moves downward with respect to the inner plug 10, and the band portion 20b covers the outer peripheral surface of the outer wall portion 11d of the fitting portion 15 of the inner plug 10 and comes into close contact with the outer peripheral surface. At this time, the tab portion TB formed on the inner plug 10 is supported by the band portion 20b while being folded, and is housed in the outer wall portion 11d of the fitting portion 15. In the state where the sealing device 100 is assembled, the upper lid 20 and the inner plug 10 are tightened to substantially the innermost part and integrated. In the present embodiment, the upper lid 20 is screwed into the inner plug 10 until the tip portion 21g of the small-diameter tubular portion 21d abuts or approaches the inner surface corner portion 12c of the separation portion 12. As shown in FIG. 3A, when the upper lid 20 and the inner plug 10 are engaged with each other, the distance between the upper lid 20 and the inner plug 10 or the screwing amount is adjusted and fixed. The tip portion 12d of the third tubular portion 12b is housed in a recess 21j formed between the base portion of the medium diameter tubular portion 21c and the base portion of the small diameter tubular portion 21d. Further, the tip portion 11f of the first tubular portion 11a is housed in a recess 21k formed between the base portion of the large diameter tubular portion 21b and the base portion of the medium diameter tubular portion 21c. The tip portion 21i of the medium-diameter tubular portion 21c is housed in a recess 12e formed between the base portion of the first tubular portion 11a and the base portion of the third tubular portion 12b, and the middle-diameter tubular portion 21c of the upper lid 20. The tip portion 21i comes into contact with the connecting portion 16 of the inner plug 10. Further, the lip portion 13 formed on the tip portion 11f of the first tubular portion 11a abuts on the lower surface 21h of the ceiling wall 21e of the upper lid 20. Further, the flange portion 21f comes into contact with the flange portion 11c. A tool can be used to support the inner plug 10 when screwing the upper lid 20.

以下、容器１の封止装置１００の容器１への組み付けについて説明する。図２に示すように、上述のように組み立てられた封止装置１００（上蓋２０及び中栓１０の組立体）は、中栓１０の第２筒状部１１ｂとフランジ部１１ｃと外壁部１１ｄとによって画成される嵌合部１５を容器１の口部１ａに嵌着させることによって容器１に係止される。具体的には、封止装置１００を容器１の口部１ａに対して押し込むことで、中栓１０の突起部１５ａが口部１ａの突起部１ｂを乗り越えて封止装置１００が口部１ａに係止される。つまり、封止装置１００は、容器１の口部１ａに対して打栓（強制的に押し込んで固定）することで、中栓１０の本体部分１１が口部１ａに対して気密に嵌着した状態となる。この状態において、中栓１０の外壁部１１ｄは、容器１の口部１ａによって上蓋２０の内側に押し付けられており、上蓋２０及び中栓１０間の摩擦等の影響もあって、中栓１０は上蓋２０に固定されている。上蓋２０と中栓１０とは、上蓋２０のフランジ部２１ｆが中栓１０のフランジ部１１ｃの少なくとも一部を抑え込むように螺合され、かつバンド部２０ｂが中栓１０の外壁部１１ｄに外側から嵌合するように組み合わされているため、封止装置１００と容器１との組み付けがより強固になっている。特に、中栓１０の外壁部１１ｄに設けた凸部１５ｂによって、容器１と中栓１０との嵌合がより強固となっている。上蓋２０のフランジ部２１ｆ及びバンド部２０ｂによって、打栓の際に中栓１０の本体部分１１が上蓋２０に対して大きく変位することを回避することができ、薄肉部ＴＭが破断することを防止できる。また、上蓋２０のフランジ部２１ｆ及びバンド部２０ｂによって、本体部分１１を介して分離部１２に比較的大きな加重又は応力が付与され分離部１２の周辺で破損が生じることを防止できる。 Hereinafter, assembling the sealing device 100 of the container 1 to the container 1 will be described. As shown in FIG. 2, the sealing device 100 (assembly of the upper lid 20 and the inner plug 10) assembled as described above includes the second tubular portion 11b, the flange portion 11c, and the outer wall portion 11d of the inner plug 10. By fitting the fitting portion 15 defined by the above into the mouth portion 1a of the container 1, the fitting portion 15 is locked to the container 1. Specifically, by pushing the sealing device 100 into the mouth portion 1a of the container 1, the protrusion 15a of the inner plug 10 gets over the protrusion 1b of the mouth portion 1a, and the sealing device 100 moves into the mouth portion 1a. It is locked. That is, in the sealing device 100, the main body portion 11 of the inner plug 10 is airtightly fitted to the mouth portion 1a by tapping (forcibly pushing and fixing) the mouth portion 1a of the container 1. It becomes a state. In this state, the outer wall portion 11d of the inner plug 10 is pressed against the inside of the upper lid 20 by the mouth portion 1a of the container 1, and the inner plug 10 is affected by friction between the upper lid 20 and the inner plug 10. It is fixed to the upper lid 20. The upper lid 20 and the inner plug 10 are screwed so that the flange portion 21f of the upper lid 20 holds down at least a part of the flange portion 11c of the inner plug 10, and the band portion 20b is attached to the outer wall portion 11d of the inner plug 10 from the outside. Since they are combined so as to be fitted, the assembly of the sealing device 100 and the container 1 is further strengthened. In particular, the convex portion 15b provided on the outer wall portion 11d of the inner plug 10 further strengthens the fitting between the container 1 and the inner plug 10. The flange portion 21f and the band portion 20b of the upper lid 20 can prevent the main body portion 11 of the inner plug 10 from being largely displaced with respect to the upper lid 20 at the time of tapping, and prevent the thin-walled portion TM from breaking. it can. Further, the flange portion 21f and the band portion 20b of the upper lid 20 can prevent a relatively large load or stress from being applied to the separation portion 12 via the main body portion 11 to cause damage around the separation portion 12.

以下、封止装置１００の開栓動作又は開封動作について説明する。まず、図２に示すように、上蓋２０が第１螺合部５１の回動動作前の初期位置（最も奥又はこれに近い奥の位置までねじ込んだ状態）にあり、分離部１２と本体部分１１とが結合状態、すなわち連結部１６のスコアー１７ａが破断されていない状態であり、容器１の開口部２が封止された状態にある。 Hereinafter, the opening operation or the opening operation of the sealing device 100 will be described. First, as shown in FIG. 2, the upper lid 20 is in the initial position (state in which the first screwed portion 51 is screwed to the innermost position or the position closest to the innermost position) before the rotation operation, and the separating portion 12 and the main body portion 11 is in a bonded state, that is, the score 17a of the connecting portion 16 is not broken, and the opening 2 of the container 1 is sealed.

この状態から上蓋２０を緩める方向、すなわち反時計方向に回転させると、蓋本体２０ａとバンド部２０ｂとを連結する破断部２０ｃが切断される。バンド部２０ｂのラチェット爪ＲＴ２は中栓１０のラチェット爪ＲＴ１と噛み合うことで反時計方向にほとんど回転しないため、バンド部２０ｂは中栓１０を嵌合した状態で維持される。つまり、バンド部２０ｂが中栓１０側に留まる抵抗力と蓋本体２０ａを回転させる力との作用によって上蓋２０の破断部２０ｃが切断される。上蓋２０の蓋本体２０ａが反時計方向に回転しながら上方に移動されることに伴って、分離部１２は、上蓋２０と逆ねじによって螺合されているため、上蓋２０と同様に上方に移動するような作用を受ける。この際、分離部１２は、上蓋２０と逆ねじによって最も奥まで略螺合されているため、これ以上の締め付けが行われず、又は締め付けが若干進行し、上蓋２０方向への移動が阻止されたロック状態となる。つまり、分離部１２は、本体部分１１に対して上側から見て反時計方向に回転しながら上蓋２０とともに上方に移動させられる。その間に中栓１０のノッチ１７又はスコアー１７ａに応力が集中するため連結部１６がせん断されて、分離部１２は本体部分１１から離脱され、開栓される。開栓に際しては、分離部１２が上蓋２０とともに回転しつつ上昇するため、スコアー１７ａの破断によって分離部１２が本体部分１１から分離する際に、明確な開封感を生じさせることができる。つまり、開栓に際してパキンと音がし、上蓋２０の回転に必要なトルクが急激に減少する。この状態において、小径筒部２１ｄの先端部２１ｇが分離部１２の内面隅部１２ｃに当接し、分離部１２の螺合による係止状態が維持され、分離部１２が上蓋２０に保持される。 When the upper lid 20 is rotated in the loosening direction, that is, in the counterclockwise direction from this state, the broken portion 20c connecting the lid main body 20a and the band portion 20b is cut. Since the ratchet claw RT2 of the band portion 20b meshes with the ratchet claw RT1 of the inner plug 10 and hardly rotates counterclockwise, the band portion 20b is maintained in a state where the inner plug 10 is fitted. That is, the broken portion 20c of the upper lid 20 is cut by the action of the resistance force that the band portion 20b stays on the inner plug 10 side and the force that rotates the lid body 20a. As the lid body 20a of the upper lid 20 is moved upward while rotating counterclockwise, the separating portion 12 is screwed with the upper lid 20 by a reverse screw, and thus moves upward in the same manner as the upper lid 20. It is affected by the action. At this time, since the separating portion 12 is substantially screwed to the innermost part by the upper lid 20 and the reverse screw, no further tightening is performed, or the tightening progresses slightly, and the movement in the upper lid 20 direction is prevented. It becomes locked. That is, the separating portion 12 is moved upward together with the upper lid 20 while rotating counterclockwise with respect to the main body portion 11. During that time, stress is concentrated on the notch 17 or the score 17a of the inner plug 10, so that the connecting portion 16 is sheared, and the separating portion 12 is separated from the main body portion 11 and opened. At the time of opening, since the separating portion 12 rises while rotating together with the upper lid 20, a clear opening feeling can be generated when the separating portion 12 separates from the main body portion 11 due to the breakage of the score 17a. That is, when the cap is opened, a clicking sound is heard, and the torque required for the rotation of the upper lid 20 is sharply reduced. In this state, the tip portion 21g of the small-diameter tubular portion 21d comes into contact with the inner surface corner portion 12c of the separation portion 12, the locked state by screwing of the separation portion 12 is maintained, and the separation portion 12 is held by the upper lid 20.

さらに、上蓋２０を緩める方向に回転させると、図９に示すように、上蓋２０は本体部分１１から離れ、それによって容器１内の内容物を注ぐことができるようになる。その際、分離部１２は、上蓋２０に確保され、上蓋２０に対してロック状態となっているため、離脱するおそれはない。つまり、一旦開栓が行われた後は、中栓１０側に固定されていた分離部１２が上蓋２０側に固定されることになる。 Further, when the upper lid 20 is rotated in the loosening direction, the upper lid 20 is separated from the main body portion 11 as shown in FIG. 9, whereby the contents in the container 1 can be poured. At that time, since the separating portion 12 is secured by the upper lid 20 and is locked to the upper lid 20, there is no risk of detachment. That is, once the cap is opened, the separating portion 12 fixed to the inner plug 10 side is fixed to the upper lid 20 side.

図２を参照して開栓後について説明すると、上蓋２０の雌ねじ２２を中栓１０の本体部分１１の雄ねじ１４に螺合させ、上蓋２０を時計方向に回転させると、中栓１０の第１筒状部１１ａの先端部１１ｆに形成されているリップ部１３が上蓋２０の天井壁２１ｅの下面２１ｈに当接し、かつ中径筒部２１ｃの外周面が第１筒状部１１ａの内側面に密着する。これによって、開口部２の再封を図ることができる。なお、図２では、スコアー１７ａが切断されていないが、正確には、一旦開栓が行われた後は、スコアー１７ａが切断された状態となっている。 Explaining after opening the cap with reference to FIG. 2, when the female screw 22 of the upper lid 20 is screwed into the male screw 14 of the main body portion 11 of the inner plug 10 and the upper lid 20 is rotated clockwise, the first of the inner plug 10 is described. The lip portion 13 formed on the tip end portion 11f of the tubular portion 11a abuts on the lower surface 21h of the ceiling wall 21e of the upper lid 20, and the outer peripheral surface of the medium-diameter tubular portion 21c is on the inner surface of the first tubular portion 11a. In close contact. As a result, the opening 2 can be resealed. In FIG. 2, the score 17a is not cut, but to be precise, the score 17a is cut after the cap is opened.

以下、容器１を使用した後（例えば内容物を使いきった等）の中栓１０の容器１からの分離について説明する。まず、上蓋２０の蓋本体２０ａを反時計方向に回転させ、中栓１０から蓋本体２０ａを取り外す。次に、バンド部２０ｂを上方に引っ張り上げて中栓１０から取り外す。これにより、図６（Ｂ）に示すように、中栓１０のタブ部ＴＢが嵌合部１５の外壁部１１ｄから突出した状態となる。このタブ部ＴＢをつまみ、中栓１０の薄肉部ＴＭに沿って引っ張ることで薄肉部ＴＭが薄肉部ＴＭの端部（嵌合部１５の頂部側、すなわちフランジ部１１ｃとの境界部）からフランジ部１１ｃの円周方向や外壁部１１ｄの軸心ＡＸ方向に沿って徐々に破断される。つまり、第１薄肉部ＴＭ１の開始点から、第１薄肉部ＴＭ１と破断部１１ｇとが破断される。薄肉部ＴＭの一部又は全部を破断し、中栓１０を上方に引っ張り上げることで中栓１０を容器１から分離させることで、中栓１０を容器１から分別することができる。 Hereinafter, separation of the inner plug 10 from the container 1 after the container 1 has been used (for example, the contents have been used up) will be described. First, the lid body 20a of the upper lid 20 is rotated counterclockwise, and the lid body 20a is removed from the inner plug 10. Next, the band portion 20b is pulled upward and removed from the inner plug 10. As a result, as shown in FIG. 6B, the tab portion TB of the inner plug 10 is in a state of protruding from the outer wall portion 11d of the fitting portion 15. By pinching the tab portion TB and pulling it along the thin-walled portion TM of the inner plug 10, the thin-walled portion TM is flanged from the end portion of the thin-walled portion TM (the top side of the fitting portion 15, that is, the boundary portion with the flange portion 11c). It is gradually broken along the circumferential direction of the portion 11c and the axial center AX direction of the outer wall portion 11d. That is, the first thin-walled portion TM1 and the broken portion 11 g are broken from the starting point of the first thin-walled portion TM1. The inner plug 10 can be separated from the container 1 by breaking a part or all of the thin-walled portion TM and pulling the inner plug 10 upward to separate the inner plug 10 from the container 1.

以上説明した容器の封止装置では、バンド部２０ｂによって簡易な開栓確認が可能であるだけでなく、バンド部２０ｂで中栓１０を周囲から嵌合するように保持することにより、中栓１０の嵌合力を補強し、容器１の開栓前及び使用時に中栓１０が容器１から脱落することを防止できる。また、例えばラチェットの膨らみ等を抑え、開栓時に上蓋２０の回転とともに中栓１０が回転する供回りを抑制できる。また、中栓１０の強度が弱くなる部分を周囲から保護し、落下の衝撃等によって中栓１０が破損することを防止できる。以上のように、中栓１０をバンド部２０ｂで締め付けることにより、開栓前及び使用時には中栓１０を容器１に安定して固定することができ、使用後にはバンド部２０ｂを取り外すことで容器１から中栓１０を容易に分離することができる。 In the container sealing device described above, not only the band portion 20b enables simple confirmation of opening, but also the inner plug 10 is held by the band portion 20b so as to be fitted from the surroundings. It is possible to reinforce the fitting force of the container 1 and prevent the inner plug 10 from falling out of the container 1 before opening the container 1 and during use. Further, for example, the swelling of the ratchet can be suppressed, and the rotation of the inner plug 10 with the rotation of the upper lid 20 at the time of opening can be suppressed. Further, it is possible to protect the portion where the strength of the inner plug 10 is weakened from the surroundings and prevent the inner plug 10 from being damaged by the impact of dropping or the like. As described above, by tightening the inner plug 10 with the band portion 20b, the inner plug 10 can be stably fixed to the container 1 before opening and during use, and after use, the container can be removed by removing the band portion 20b. The inner plug 10 can be easily separated from 1.

以上では、本実施形態に係る容器の封止装置について説明したが、本発明に係る容器の封止装置は上記のものには限られない。例えば、上記実施形態において、第１螺合部５１を構成している雄ねじ１４及び雌ねじ２２のピッチ、巻き数、ねじ山の高さ等の仕様は、適宜用途に応じて変更することができる。また、第２螺合部５２を構成している雄ねじ２３及び雌ねじ１８のピッチ、巻き数、ねじ山の高さ等の仕様も、適宜用途に応じて変更することができる。 Although the container sealing device according to the present embodiment has been described above, the container sealing device according to the present invention is not limited to the above. For example, in the above embodiment, specifications such as the pitch, number of turns, and thread height of the male screw 14 and the female screw 22 constituting the first screwed portion 51 can be appropriately changed according to the intended use. Further, specifications such as pitch, number of turns, and thread height of the male screw 23 and the female screw 18 constituting the second screw portion 52 can be changed as appropriate according to the application.

また、上記実施形態において、中栓１０の第３筒状部１２ｂと上蓋２０の小径筒部２１ｄとは、内外を入れ替えることもできる。この場合も、第３筒状部１２ｂの雄ねじと小径筒部２１ｄの雌ねじとは、第１螺合部５１に対して逆の螺進関係の第２螺合部５２を構成する。 Further, in the above embodiment, the inside and outside of the third tubular portion 12b of the inner plug 10 and the small diameter tubular portion 21d of the upper lid 20 can be exchanged. Also in this case, the male screw of the third tubular portion 12b and the female screw of the small diameter tubular portion 21d form a second screw portion 52 having a screwing relationship opposite to that of the first screw portion 51.

また、上記実施形態において、第２螺合部５２を構成する雌ねじ１８や雄ねじ２３は、連続的に螺旋状に形成されるものに限らず、分離した複数の部分からなるものとできる。 Further, in the above embodiment, the female screw 18 and the male screw 23 constituting the second screwed portion 52 are not limited to those formed continuously in a spiral shape, and may be composed of a plurality of separated portions.

また、上記実施形態において、容器１の口部１ａに雄ねじと、中栓１０の外壁部１１ｄに雌ねじとを設けて、中栓１０を打栓で嵌着せず、螺合によって嵌着してもよい。 Further, in the above embodiment, even if a male screw is provided on the mouth portion 1a of the container 1 and a female screw is provided on the outer wall portion 11d of the inner plug 10, the inner plug 10 is not fitted with a stopper but is fitted by screwing. Good.

また、上記実施形態において、図１０に示すように、中栓１０に分離部１２を設けなくてもよい。また、中栓１０の分離部１２の代わりにプルリングを形成する構成としてもよい。 Further, in the above embodiment, as shown in FIG. 10, it is not necessary to provide the separating portion 12 in the inner plug 10. Further, a pull ring may be formed instead of the separating portion 12 of the inner plug 10.

また、上記実施形態において、第１薄肉部ＴＭ１や破断部１１ｇの断面形状は、楔形状又はＵ字形状に限らず、他の形状としてもよい。また、ある程度の強度を損なわない程度に薄肉部ＴＭの一部に切れ込みを設けてもよい。 Further, in the above embodiment, the cross-sectional shape of the first thin-walled portion TM1 and the broken portion 11g is not limited to the wedge shape or the U-shape, and may be another shape. Further, a notch may be provided in a part of the thin-walled portion TM so as not to impair the strength to some extent.

また、上記実施形態において、上蓋２０及び中栓１０を組み立ててから容器１に嵌着したが、中栓１０を先に容器１に嵌着した後に上蓋２０を取付けてもよい。具体的には、中栓１０を容器１の口部１ａに対して押し込むことで、中栓１０の突起部１５ａが口部１ａの突起部１ｂを乗り越えて中栓１０が口部１ａに係止される。次に、上蓋２０を中栓１０に係合させる。この際、上蓋２０を上蓋２０側から見て時計方向に回転させることによって第１螺合部５１を係合させる。第１螺合部５１の係合に伴い、第２螺合部５２も変形しながら噛合される。上蓋２０の締め込みにより、中栓１０に形成されたタブ部ＴＢは折り畳まれながらバンド部２０ｂに支持され、嵌合部１５の外壁部１１ｄ内に収納される。これにより、封止装置１００が容器１に組み付けられる。 Further, in the above embodiment, the upper lid 20 and the inner plug 10 are assembled and then fitted to the container 1, but the upper lid 20 may be attached after the inner plug 10 is first fitted to the container 1. Specifically, by pushing the inner plug 10 into the mouth portion 1a of the container 1, the protrusion 15a of the inner plug 10 gets over the protrusion 1b of the mouth portion 1a and the inner plug 10 is locked to the mouth portion 1a. Will be done. Next, the upper lid 20 is engaged with the inner plug 10. At this time, the first screw portion 51 is engaged by rotating the upper lid 20 in the clockwise direction when viewed from the upper lid 20 side. As the first screwed portion 51 is engaged, the second screwed portion 52 is also deformed and meshed. By tightening the upper lid 20, the tab portion TB formed in the inner plug 10 is supported by the band portion 20b while being folded, and is housed in the outer wall portion 11d of the fitting portion 15. As a result, the sealing device 100 is assembled to the container 1.

また、上記実施形態において、中栓１０にタブ部ＴＢを１つ設けたが、図１１（Ａ）及び１１（Ｂ）に示すように、複数個設けてもよい。この場合、バンド部２０ｂを中栓１０から取り外すと、複数のタブ部ＴＢが開くことになり、容器１と中栓１０との嵌合力が低下し、第１薄肉部ＴＭ１を設けなくても第２薄肉部ＴＭ２を切断することなく中栓１０を容器１から取り出すことができる。 Further, in the above embodiment, one tab portion TB is provided on the inner plug 10, but a plurality of tab portions TB may be provided as shown in FIGS. 11 (A) and 11 (B). In this case, when the band portion 20b is removed from the inner plug 10, a plurality of tab portions TB are opened, the fitting force between the container 1 and the inner plug 10 is reduced, and the first thin-walled portion TM1 is not provided. 2 The inner plug 10 can be taken out from the container 1 without cutting the thin portion TM2.

１…容器、１ａ…口部、１ｂ…突起部、２…開口部、１０…中栓、１０ａ…抽出口、１１…本体部分、１１ａ…第１筒状部、１１ｂ…第２筒状部、１１ｃ…フランジ部、１１ｄ…外壁部、１１ｅ…連結部、１２…分離部、１２ａ…封止体、１２ｂ…第３筒状部、１３…リップ部、１４…雄ねじ、１５…嵌合部、１５ａ…突起部、１５ｂ…凸部、１６…連結部、１７…ノッチ、１８…雌ねじ、１７ａ…スコアー、２０…上蓋、２０ａ…蓋本体、２０ｂ…バンド部、２０ｃ…破断部、２１ａ…周壁部、２１ｂ…大径筒部、２１ｃ…中径筒部、２１ｄ…小径筒部、２１ｅ…天井壁、２１ｆ…フランジ部、２２…雌ねじ、２３…雄ねじ、５１…第１螺合部、５２…第２螺合部、１００…封止装置、ＡＸ…軸心、ＢＸ…回転軸、ＲＴ１，ＲＴ２…ラチェット爪、ＴＢ…タブ部、ＴＭ…薄肉部 1 ... Container, 1a ... Mouth, 1b ... Protrusion, 2 ... Opening, 10 ... Inner plug, 10a ... Extraction port, 11 ... Main body, 11a ... 1st tubular part, 11b ... 2nd tubular part, 11c ... Flange part, 11d ... Outer wall part, 11e ... Connecting part, 12 ... Separation part, 12a ... Sealing body, 12b ... Third tubular part, 13 ... Lip part, 14 ... Male screw, 15 ... Fitting part, 15a ... Projection, 15b ... Convex, 16 ... Connecting, 17 ... Notch, 18 ... Female screw, 17a ... Score, 20 ... Top lid, 20a ... Lid body, 20b ... Band, 20c ... Broken, 21a ... Peripheral wall, 21b ... Large diameter cylinder part, 21c ... Medium diameter cylinder part, 21d ... Small diameter cylinder part, 21e ... Ceiling wall, 21f ... Flange part, 22 ... Female screw, 23 ... Male screw, 51 ... First screwed part, 52 ... Second Screwed part, 100 ... Sealing device, AX ... Axis center, BX ... Rotating shaft, RT1, RT2 ... Ratchet claw, TB ... Tab part, TM ... Thin wall part

Claims

A container sealing device including an inner plug attached to a container and an upper lid covering the inner plug.
The upper lid has a lid main body that detachably covers the inner plug, and a band portion that is arranged adjacent to the opening side of the lid main body.
The band portion holds the inner plug so as to be fitted from the surroundings, and is connected to the lid body via a break portion before opening the lid, and the break portion is separated after the opening of the lid body. Separated from
The inner plug has a fitting portion that fits the container on the root side.
The fitting portion has a thin-walled portion that enables breakage and a tab portion that is adjacent to the thin-walled portion and induces breakage of the thin-walled portion.
The tab portion is inclined and protrudes with respect to the rotation axis of the upper lid with the top side of the fitting portion as a base point.
The band portion is a container sealing device characterized in that the fitting portion is supported so as to be tightened from the surroundings so as to prevent an external force from being applied to the thin-walled portion.

The outer wall portion of the fitting portion has a protrusion on the inner surface that engages with the container, and has a protrusion on the outer surface at a position including at least a part of a region corresponding to the protrusion. The container sealing device according to claim 1.

The container sealing device according to claim 2, wherein the thin-walled portion crosses an outer wall portion of the fitting portion and is provided in an arc shape at least a part of the top portion of the fitting portion.

The container sealing device according to claim 3, wherein the tab portion projects outward from the fitting portion before the band portion is attached.

Any of claims 1 to 4, wherein the tab portion is housed in a recess formed outside the outer wall portion of the fitting portion in the thin-walled portion after the band portion is attached. The container sealing device according to paragraph 1.

The inner plug has a separation part that seals an extraction port from which the contents in the container are poured out.
The container sealing device according to any one of claims 1 to 5, wherein the separating portion is held by the upper lid after opening the container.