JP7791044B2 - Cap body - Google Patents
Cap bodyInfo
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- JP7791044B2 JP7791044B2 JP2022088056A JP2022088056A JP7791044B2 JP 7791044 B2 JP7791044 B2 JP 7791044B2 JP 2022088056 A JP2022088056 A JP 2022088056A JP 2022088056 A JP2022088056 A JP 2022088056A JP 7791044 B2 JP7791044 B2 JP 7791044B2
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- cap body
- top wall
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Description
本発明は、ガラス瓶容器を密封するキャップ体に関し、とくに、王冠で密封されたガラス瓶容器のリキャップ用に使用するキャップ体に関するものである。 The present invention relates to a cap body for sealing a glass bottle container, and in particular to a cap body used for recapping a glass bottle container sealed with a crown cap.
従来、ガラス瓶容器に炭酸飲料などの内容液を充填した後、ガラス瓶容器の口部に王冠を嵌合させてガラス瓶容器内を密封していた。 Traditionally, after filling a glass bottle with a liquid such as a carbonated beverage, a crown cap is fitted over the opening of the glass bottle to seal the inside of the glass bottle.
このため、ガラス瓶容器の内容液を使用するには、ガラス瓶容器から王冠を外すため、内容液が残ってもガラス瓶容器をリキャップできないという問題があった。
この問題を解決するため、王冠の除去後に、ガラス瓶容器の密封性を確保するため、リキャップ用のキャップ体が従来から知られている（例えば、特許文献１参照）。
Therefore, in order to use the liquid contained in the glass bottle, the crown cap must be removed from the glass bottle, which poses the problem that the glass bottle cannot be recapped even if the liquid remains.
To solve this problem, a cap body for recapping has been conventionally known to ensure the hermeticity of a glass bottle container after the crown cap is removed (see, for example, Patent Document 1).
しかしながら、上記特許文献１に記載の注出栓（キャップ体）では、リキャップ用の注出栓がヒンジを介して蓋体を開閉するため、炭酸飲料などの発泡性の内容液を充填したガラス瓶容器には使用できないという問題があった。
さらに、口部を王冠で密封するガラス瓶容器は、口部周辺の鏡面処理をしていないために、口部表面が荒れているために、キャップ体で閉蓋した際に密封性に問題があり、液漏れするおそれがあった。また、ガラス瓶容器は、合成樹脂容器に比べ、成形精度が低いという問題もあった。
However, the dispensing tap (cap body) described in Patent Document 1 above had the problem that the re-capping dispensing tap opens and closes the lid body via a hinge, and therefore cannot be used with glass bottle containers filled with sparkling liquid such as carbonated drinks.
Furthermore, glass bottle containers, which have their mouths sealed with crown caps, do not have mirror-finished surfaces around the mouths, which makes the mouth surfaces rough and causes problems with sealing when the cap is closed, leading to the risk of liquid leakage. Glass bottle containers also have the problem of lower molding precision than synthetic resin containers.
本発明は、上記問題を解決することを課題とし、ガラス瓶容器の密封性を向上させつつ、キャップ体の開閉時の回転トルクを抑制することができるキャップ体を提供することを目的とする。 The present invention aims to solve the above problems by providing a cap body that can reduce the rotational torque required when opening and closing the cap body while improving the sealing performance of glass bottle containers.
本発明は、上記の課題を解決するため、キャップ体として、ガラス瓶容器の口部に螺着されるねじキャップと、ねじキャップの内側に係着されるシール部材とからなるキャップ体であって、ねじキャップは、頂壁と、頂壁の周縁から垂設される外周壁と、外周壁の内周に形成される係着突部とを備え、シール部材は、外縁部がねじキャップの係着突部を乗り越え、外周壁の内周上部に係着され、下面が口部上面と密着可能な天壁と、天壁から口部内周面に向けて垂下されるインナーリングと、インナーリングの外側から口部外周面に向けて垂下されるアウターリングとを備え、アウターリングは、閉蓋時に、内側面が口部外周面に密着するとともに、外側面が係着突部の当接により押し付けられることを特徴とする構成を採用する。 In order to solve the above-mentioned problems, the present invention provides a cap body comprising a screw cap that is screwed onto the mouth of a glass bottle container and a sealing member that is attached to the inside of the screw cap, wherein the screw cap has a top wall, an outer peripheral wall that hangs down from the periphery of the top wall, and an attachment protrusion formed on the inner circumference of the outer peripheral wall, and the sealing member has a top wall whose outer edge rides over the attachment protrusion of the screw cap and is attached to the upper inner circumference of the outer peripheral wall , and whose underside can be in close contact with the upper surface of the mouth, an inner ring that hangs down from the top wall toward the inner surface of the mouth, and an outer ring that hangs down from the outside of the inner ring toward the outer surface of the mouth, and wherein when the lid is closed, the inner surface of the outer ring is in close contact with the outer surface of the mouth, and the outer surface is pressed against it by the abutment of the attachment protrusion.
キャップ体の実施形態として、シール部材の天壁は、インナーリング外周とアウターリング内周間の下面に、インナーリング外周側から外側下方に向けて形成される傾斜面部と、傾斜面部の外縁からアウターリング内周側に向けて形成される平坦面部とを有し、キャップ体は、ガラス瓶容器に螺着した際、インナーリング外周上部と、天壁下面の傾斜面部と、口部上面との間に隙間が形成されることを特徴とする構成を採用し、また、インナーリングは、外周に、中央が最も外側に拡径するように、上から下に広がる上外周面と、上から下に狭まる下外周面と、から突出外周部が形成されることを特徴とする構成を採用し、また、シール部材は、天壁の外縁部に形成される切欠きを有することを特徴とする構成を採用する。 In one embodiment of the cap body, the top wall of the sealing member has, on the underside between the outer periphery of the inner ring and the inner periphery of the outer ring, an inclined surface portion formed outward and downward from the outer periphery of the inner ring, and a flat surface portion formed from the outer edge of the inclined surface portion toward the inner periphery of the outer ring; when the cap body is screwed onto a glass bottle container, a gap is formed between the upper part of the outer periphery of the inner ring, the inclined surface portion on the underside of the top wall, and the upper surface of the mouth; the inner ring has, on its outer periphery, an upper outer periphery that widens from top to bottom and a lower outer periphery that narrows from top to bottom, with the diameter widest outward in the center, forming a protruding outer periphery ; and the sealing member has a notch formed on the outer edge of the top wall.
本発明のキャップ体は、上記構成を採用することにより、ねじキャップをガラス瓶容器に螺着させて閉蓋する際に、シール部材がガラス瓶容器の口部から内容液が漏れないように強固に密封することができるとともに、キャップ体の開閉時の回転トルクを抑制することができる。 By adopting the above-described configuration, the cap body of the present invention can tightly seal the opening of the glass bottle container to prevent leakage of the contents when the screw cap is screwed onto the glass bottle container to close it, and can also reduce the rotational torque required when opening and closing the cap body.
次に、本発明のキャップ体の実施形態について図面を参照して説明する。
なお、以下の説明において、図１（ａ）でみて、上方向を「上」、下方向を「下」、上下方向を「軸線方向」とし、左右方向を「径方向」とする。
Next, an embodiment of the cap body of the present invention will be described with reference to the drawings.
In the following description, in FIG. 1(a), the upward direction is referred to as "upper", the downward direction is referred to as "lower", the vertical direction is referred to as "axial direction", and the left-right direction is referred to as "radial direction".
図１において、Ａは炭酸飲料などの内容液を充填するガラス瓶容器、Ｂはガラス瓶容器Ａを再密封するためのキャップ体で、ガラス瓶容器Ａの口部１に螺着されるねじキャップＣと、ねじキャップＣの内側に係着されるシール部材Ｄとの２パーツから構成されている。
ねじキャップＣは、ＰＰなどの硬質な素材等で形成され、シール部材Ｄは、ＰＥなどの弾性変形可能で、ねじキャップＣよりも軟質な素材で形成されている。
本実施例では、ガラス瓶容器Ａは、内容液を充填後、王冠で密封して出荷される。使用時には、ガラス瓶容器Ａから王冠を外して内容液を注出後、内容液が残っている場合には、リキャップのために、キャップ体Ｂで閉蓋する。
In Figure 1, A is a glass bottle container into which a liquid such as a carbonated drink is filled, and B is a cap body for resealing the glass bottle container A, which is composed of two parts: a screw cap C that is screwed onto the mouth portion 1 of the glass bottle container A, and a sealing member D that is attached to the inside of the screw cap C.
The screw cap C is made of a hard material such as PP, and the seal member D is made of an elastically deformable material such as PE that is softer than the screw cap C.
In this embodiment, glass bottle container A is filled with the liquid content, sealed with a crown cap, and shipped. When in use, the crown cap is removed from glass bottle container A, the liquid content is poured out, and if any liquid content remains, the cap body B is used for recapping.
ガラス瓶容器Ａは、上部にキャップ体Ｂで閉蓋される円筒状の口部１を備え、口部１の外周には、雄ねじ２が螺設されている。
口部１には、図１（ｂ）に示すように、上端の平坦な口部上面３と、口部上面３の内縁から軸線方向に垂設される口部内周面４と、口部上面３の外縁から湾曲して下に向かう口部外周湾曲面５とが形成されている。
The glass bottle container A has a cylindrical mouth portion 1 at the top that is closed with a cap body B, and a male screw 2 is threaded on the outer periphery of the mouth portion 1.
As shown in Figure 1(b), the mouth portion 1 has a flat upper mouth surface 3 at the upper end, an inner mouth surface 4 extending vertically in the axial direction from the inner edge of the upper mouth surface 3, and an outer mouth curved surface 5 that curves downward from the outer edge of the upper mouth surface 3.
ねじキャップＣは、図１および図２に示すように、円板状の頂壁１０と、頂壁１０の周縁から垂設され、ガラス瓶容器Ａの口部１外周に螺着される外周壁１１とを備え、外周壁１１の内周上部には、キャップ体Ｂのセット時に、シール部材Ｄの外縁部２４が乗り越え、シール部材Ｄが抜け落ちるのを防ぐ係着突部１２が周設され、外周壁１１の内周下部には、閉蓋時に、口部１の雄ねじ２と螺合する雌ねじ１３が螺設されている。
なお、本実施例では、係着突部１２は、連続してリング状に形成されているが、係着突部１２は、間欠して形成されていても構わない。
As shown in Figures 1 and 2, the screw cap C comprises a disk-shaped top wall 10 and an outer peripheral wall 11 that hangs down from the periphery of the top wall 10 and is screwed onto the outer periphery of the mouth 1 of the glass bottle container A. The upper inner periphery of the outer peripheral wall 11 is provided with engaging protrusions 12 that the outer edge 24 of the sealing member D rides over when the cap body B is set, preventing the sealing member D from falling off. The lower inner periphery of the outer peripheral wall 11 is provided with a female thread 13 that screws into the male thread 2 of the mouth 1 when the lid is closed.
In this embodiment, the engaging projection 12 is formed in a continuous ring shape, but the engaging projection 12 may be formed intermittently.
シール部材Ｄは、図１および図３に示すように、円板状の天壁２０と、天壁２０の下面から口部１の口部内周面４に向けて垂下されるインナーリング２１と、天壁２０下面のインナーリング２１外周側から径方向に形成される外周下面部２２と、外周下面部２２の外縁から口部１の口部外周湾曲面５に向けて垂下される薄肉のアウターリング２３とを備え、セット時に、天壁２０の外縁部２４がねじキャップＣの係着突部１２を乗り越え、外周壁１１の内周上部にセットされるとともに、天壁２０の上面が頂壁１０の下面に近接または当接し、装着される。 As shown in Figures 1 and 3, the sealing member D comprises a disk-shaped top wall 20, an inner ring 21 hanging down from the underside of the top wall 20 toward the inner peripheral surface 4 of the neck 1, an outer peripheral underside 22 formed radially from the outer periphery of the inner ring 21 on the underside of the top wall 20, and a thin-walled outer ring 23 hanging down from the outer edge of the outer peripheral underside 22 toward the outer peripheral curved surface 5 of the neck 1. When set, the outer edge 24 of the top wall 20 climbs over the engagement protrusion 12 of the screw cap C and is set on the upper inner periphery of the outer peripheral wall 11, and the upper surface of the top wall 20 comes close to or abuts the underside of the top wall 10, thereby attaching it.
図３（ｃ）に示すように、インナーリング２１の外周には、中央が最も外側に拡径するように、上から下に広がる上外周面２５ａと、上から下に狭まる下外周面２５ｂとから、逆くの字状（図の対向側は、くの字状）に形成された突出外周部２５が形成されている。
上外周面２５ａと、軸線方向とのなす角度θ１は、本実施例では、６°に設定されているが、３°～１０°の範囲が好ましい。また、下外周面２５ｂと、軸線方向とのなす角度θ２は、本実施例では、１７°に設定されているが、１０°～４５°の範囲であれば問題ない。
なお、インナーリング２１の内周は、成形性を考慮して垂直面形状としている。
As shown in Figure 3(c), the outer periphery of the inner ring 21 is formed with a protruding outer periphery 25 that is formed in an inverted L-shape (the opposite side in the figure is L-shaped) from an upper outer periphery surface 25a that widens from top to bottom, with the diameter widest outward at the center, and a lower outer periphery surface 25b that narrows from top to bottom.
In this embodiment, the angle θ1 between the upper outer peripheral surface 25a and the axial direction is set to 6°, but is preferably in the range of 3° to 10°. In addition, the angle θ2 between the lower outer peripheral surface 25b and the axial direction is set to 17°, but is acceptable as long as it is in the range of 10° to 45°.
The inner periphery of the inner ring 21 is formed into a vertical surface shape in consideration of formability.
外周下面部２２には、外側から径方向に平坦に形成される平坦面部２２ａと、平坦面部２２ａの内縁から内方に向かい上方に傾斜しながらインナーリング２１の突出外周部２５まで延びる傾斜面部２２ｂとが形成されている。
天壁２０の外縁部２４の所定の位置（本実施例では、対向する２個所）には、切欠き２７が凹設されている。
The outer peripheral lower surface portion 22 is formed with a flat surface portion 22a that is formed flat in the radial direction from the outside, and an inclined surface portion 22b that slopes upward and inward from the inner edge of the flat surface portion 22a and extends to the protruding outer peripheral portion 25 of the inner ring 21.
The outer edge 24 of the top wall 20 has recessed notches 27 at predetermined positions (two opposing positions in this embodiment).
アウターリング２３は、外周下面部２２の平坦面部２２ａ外縁から下方に向かって拡径して延び、シール部材ＤをねじキャップＣにセットした時に、先端部がねじキャップＣの係着突部１２より下方にくる高さで、薄肉に形成されている。 The outer ring 23 expands downward from the outer edge of the flat surface 22a of the outer peripheral underside 22, and is formed thin-walled so that its tip is lower than the engaging projection 12 of the screw cap C when the sealing member D is set in the screw cap C.
本実施例のキャップ体Ｂは、閉蓋時のねじキャップＣとガラス瓶容器Ａとの螺合装着により、ねじキャップＣの頂壁１０下面と、ガラス瓶容器Ａの口部１上端部との間でシール部材Ｄを挟み込み、図１に示すように、シール部材Ｄのインナーリング２１の突出外周部２５の上外周面２５ａは、ガラス瓶容器Ａの口部１の口部内周面４に当接されてシール部ｓ１を形成し、外周下面部２２の平坦面部２２ａは、口部１の口部上面３に当接されてシール部ｓ２を形成し、アウターリング２３の外側面２３ｂと内側面２３ａとをねじキャップＣの外周壁１１の係着突部１２と口部１の口部外周湾曲面５とで挟み込み、アウターリング２３の内側面２３ａは、口部１の口部外周湾曲面５に密着されてシール部ｓ３を形成している。 When the cap body B of this embodiment is screwed onto the screw cap C and the glass bottle container A, the sealing member D is sandwiched between the underside of the top wall 10 of the screw cap C and the upper end of the mouth 1 of the glass bottle container A. As shown in FIG. 1 , the upper outer surface 25a of the protruding outer peripheral portion 25 of the inner ring 21 of the sealing member D abuts against the inner peripheral surface 4 of the mouth 1 of the glass bottle container A to form a seal portion s1, the flat surface 22a of the outer peripheral lower surface 22 abuts against the upper peripheral surface 3 of the mouth 1 to form a seal portion s2, the outer surface 23b and inner surface 23a of the outer ring 23 are sandwiched between the engaging protrusion 12 of the outer peripheral wall 11 of the screw cap C and the outer peripheral curved surface 5 of the mouth 1, and the inner surface 23a of the outer ring 23 is in intimate contact with the outer peripheral curved surface 5 of the mouth 1 to form a seal portion s3.
とくに、アウターリング２３は、薄肉に形成されているので追従変形性がよく、外側面２３ｂが係着突部１２の当接により押し付けられることで、内側面２３ａがガラス瓶容器Ａの口部外周湾曲面５の形状に追従して変形して密着される。
また、シール部ｓ１とシール部ｓ２との間には、インナーリング２１の上外周面２５ａと、外周下面部２２の傾斜面部２２ｂと、口部上面３とによって隙間αが形成される。
In particular, the outer ring 23 is formed thinly, so it has good conforming and deforming properties, and when the outer surface 23b is pressed by the engagement protrusion 12, the inner surface 23a deforms to conform to the shape of the outer curved surface 5 of the mouth of the glass bottle container A and is tightly fitted.
A gap α is formed between the seal portion s1 and the seal portion s2 by the upper outer peripheral surface 25a of the inner ring 21, the inclined surface portion 22b of the outer peripheral lower surface portion 22, and the upper surface 3 of the mouth portion.
次に、本実施例の使用態様と作用効果について説明する。
本実施例のキャップ体Ｂは、最初に、ねじキャップＣの内側にシール部材Ｄを押し込み、セットする。
セットする際には、シール部材Ｄの天壁２０の外縁部２４は、係着突部１２を乗り越え、外周壁１１の内周上部に装着されるが、このとき、シール部材Ｄの天壁２０の上面と、ねじキャップＣの頂壁１０の下面との間に存在する空気は、外縁部２４の切欠き２７を通って排出され、シール部材Ｄ上面とねじキャップＣの頂壁１０下面とが当接してセットが完了する。
Next, the manner of use and the effects of this embodiment will be described.
In the cap body B of this embodiment, first, the seal member D is pushed into the inside of the screw cap C and set.
When setting, the outer edge 24 of the top wall 20 of the sealing member D climbs over the engaging protrusion 12 and is attached to the upper inner periphery of the outer wall 11. At this time, the air present between the upper surface of the top wall 20 of the sealing member D and the lower surface of the top wall 10 of the screw cap C is expelled through the notch 27 of the outer edge 24, and the upper surface of the sealing member D and the lower surface of the top wall 10 of the screw cap C come into contact, completing the setting.
次に、ねじキャップＣにシール部材Ｄをセットしたキャップ体Ｂは、内容液を充填し、王冠で密封されたガラス瓶容器Ａにリキャップ用として添付され、出荷される。
内容液を使用する際には、ガラス瓶容器Ａから王冠を外して内容液を注出するが、注出後に内容液が残っている場合には、ガラス瓶容器Ａを再密封するために、リキャップ用のキャップ体Ｂで閉蓋する。
Next, the cap body B, in which the sealing member D is set on the screw cap C, is attached to the glass bottle container A, which has been filled with the liquid and sealed with a crown cap, as a recapping tool, and is then shipped.
When the liquid content is used, the crown is removed from the glass bottle container A and the liquid content is poured out, but if the liquid content remains after pouring out, the glass bottle container A is closed with a recap cap body B to reseal it.
キャップ体Ｂによるガラス瓶容器Ａの閉蓋について説明すると図４（ａ）に示すように、まず、下降したねじキャップＣに係着されたシール部材Ｄは、インナーリング２１の突出外周部２５の下外周面２５ｂに、ガラス瓶容器Ａの口部内周面４の上端が当接する。
さらに、ねじキャップＣの螺着が進むと、インナーリング２１の突出外周部２５の下外周面２５ｂが口部内周面４に摺接しながら、口部１に押し込まれていく。
さらに、ねじキャップＣとともにシール部材Ｄの下降が進むと、口部内周面４の上端部は、突出外周部２５の最突出部を乗り越え、上外周面２５ａに当接して、インナーリング２１を先端側から内方に押し込みながら摺動していく。
Regarding the closure of the glass bottle container A by the cap body B, as shown in Figure 4(a), first, the sealing member D attached to the lowered screw cap C abuts the upper end of the inner peripheral surface 4 of the mouth of the glass bottle container A against the lower outer peripheral surface 25b of the protruding outer peripheral portion 25 of the inner ring 21.
As the screw cap C is further screwed, the lower outer peripheral surface 25b of the protruding outer peripheral portion 25 of the inner ring 21 is pressed into the mouth portion 1 while sliding against the mouth portion inner peripheral surface 4.
Furthermore, as the sealing member D continues to descend together with the screw cap C, the upper end of the inner surface 4 of the mouth portion passes over the most protruding part of the protruding outer periphery 25, abuts against the upper outer periphery 25a, and slides while pushing the inner ring 21 inward from the tip side.
キャップ体Ｂによるガラス瓶容器Ａの閉蓋が終了すると、ねじキャップＣの頂壁１０の下面とガラス瓶容器Ａの口部１との間でシール部材Ｄを挟み込み、図１および図４（ｂ）に示すように、シール部材Ｄのインナーリング２１と外周下面部２２とアウターリング２３とが、ガラス瓶容器Ａの口部１と当接してシール部ｓ１、ｓ２、ｓ３を形成する。 Once the cap body B has been closed onto the glass bottle container A, the sealing member D is sandwiched between the underside of the top wall 10 of the screw cap C and the mouth 1 of the glass bottle container A, and as shown in Figures 1 and 4(b), the inner ring 21, outer peripheral underside 22, and outer ring 23 of the sealing member D come into contact with the mouth 1 of the glass bottle container A to form seals s1, s2, and s3.
インナーリング２１は、口部内周面４により、先端側から内方に押し込まれるように変形させられ、インナーリング２１の上外周面２５ａと口部内周面４とが面接触するとともに、インナーリング２１の復元力により、口部内周面４に押し付けられ、シール部ｓ１は、密着されている。
また、アウターリング２３は、外側面２３ｂがねじキャップＣの係着突部１２により押し付けられることで、口部外周湾曲面５の形状に追従して変形して接触面積を増やし、シール部ｓ３は、より密着されている。
The inner ring 21 is deformed by being pushed inward from the tip side by the inner surface 4 of the mouth portion, and the upper outer surface 25a of the inner ring 21 and the inner surface 4 of the mouth portion come into surface contact, and the restoring force of the inner ring 21 presses it against the inner surface 4 of the mouth portion, so that the sealing portion s1 is tightly adhered.
In addition, when the outer surface 23b of the outer ring 23 is pressed by the engaging protrusion 12 of the screw cap C, it deforms to conform to the shape of the outer curved surface 5 of the mouth portion, increasing the contact area, and the sealing portion s3 is more tightly sealed.
本実施例のキャップ体Ｂは、インナーリング２１に上外周面２５ａと下外周面２５ｂとからなる逆くの字状に突出する突出外周部２５を設け、閉蓋時に、口部内周面４に軸線方向とのなす角度θ１が３°～１０°の範囲に設定された上外周面２５ａが面接触するシール部ｓ１としてインナーリング２１自体が口部内周面４に押し付けられるので、インナーリング２１のシール部ｓ１が接触する範囲が少なくても、密着を維持でき、インナーリング２１の高さを従来のものに比べ低くすることができる。
さらに、アウターリング２３は、閉蓋時に、口部外周湾曲面５の形状に追従して変形することにより、接触面積を増やして押し付けられ、シール部ｓ３として密着されるので、より強固に密封を維持することができる。
ガラス瓶容器Ａの内容液が炭酸飲料などの発泡性の液であっても、ガラス瓶容器Ａとシール部材Ｄとの密着を強固に維持できているので、容器を横に倒しても内容液が漏れてしまうことがない。
In the cap body B of this embodiment, the inner ring 21 is provided with a protruding outer periphery 25 that protrudes in an inverted L-shape and is composed of an upper outer periphery 25a and a lower outer periphery 25b. When the lid is closed, the inner ring 21 itself is pressed against the mouth inner periphery 4 as a seal portion s1 that makes surface contact with the mouth inner periphery 4, with the upper outer periphery 25a having an angle θ1 with the axial direction set in the range of 3° to 10°. Therefore, even if the area of contact of the seal portion s1 of the inner ring 21 is small, tight contact can be maintained and the height of the inner ring 21 can be made lower than conventional ones.
Furthermore, when the lid is closed, the outer ring 23 deforms to follow the shape of the outer curved surface 5 of the mouth portion, thereby increasing the contact area and being pressed against it, forming a tightly sealed seal portion s3, thereby maintaining a more secure seal.
Even if the liquid contained in the glass bottle container A is a sparkling liquid such as a carbonated drink, the tight adhesion between the glass bottle container A and the sealing member D can be maintained, so that the liquid contained does not leak even if the container is turned sideways.
ガラス瓶容器Ａを開封するには、キャップ体Ｂをガラス瓶容器Ａに対して開蓋方向に回転させると、簡単に開蓋される。
開蓋の際、ねじキャップＣの上昇に対してシール部材Ｄも一緒に上昇し、シール部ｓ２が外れるとともに、ねじキャップＣの係着突部１２がシール部材Ｄのアウターリング２３から離れていき、アウターリング２３への押し付けが無くなり、変形が元に戻され、口部外周湾曲面５とのシール部ｓ３が外されて上昇していく。
最後は、シール部材Ｄのインナーリング２１が口部内周面４から抜け出ると、シール部ｓ１が外れ、開蓋される。
To open the glass bottle container A, the cap body B is rotated in the opening direction relative to the glass bottle container A, and the lid is easily opened.
When the lid is opened, the sealing member D rises together with the screw cap C, and the sealing portion s2 comes off, and the engaging protrusion 12 of the screw cap C moves away from the outer ring 23 of the sealing member D, so that it is no longer pressed against the outer ring 23, the deformation returns to its original state, and the sealing portion s3 with the outer curved surface 5 of the mouth portion is released and rises.
Finally, when the inner ring 21 of the seal member D comes out from the inner peripheral surface 4 of the opening, the seal portion s1 comes off and the lid is opened.
本実施例のキャップ体Ｂは、開蓋の際に、すぐにアウターリング２３とのシール部ｓ３の密着が簡単に外されるとともに、インナーリング２１の高さを低くでき、かつ、シール部ｓ１とシール部ｓ２との間には、インナーリング２１の上外周面２５ａと、外周下面部２２の傾斜面部２２ｂと、口部上面３とによって隙間αが形成されているため、インナーリング２１および外周下面部２２と、口部１とのシール部ｓ１およびシール部ｓ２の密着範囲が少なくなり、簡単に外れるので、従来のものに比べ、開蓋時の回転トルクを抑制できる。 When the cap body B of this embodiment is opened, the seal portion s3 with the outer ring 23 is easily released immediately, the height of the inner ring 21 can be lowered, and a gap α is formed between seal portion s1 and seal portion s2 by the upper outer peripheral surface 25a of the inner ring 21, the inclined surface portion 22b of the outer peripheral lower surface portion 22, and the upper surface 3 of the mouth portion. This reduces the area of contact between seal portion s1 and seal portion s2 with the inner ring 21 and outer peripheral lower surface portion 22 and the mouth portion 1, allowing for easy release. This reduces the rotational torque required when opening the cap compared to conventional caps.
再度、キャップ体Ｂを閉蓋する際には、ねじキャップＣを、ガラス瓶容器Ａの口部１に螺着することで、シール部材Ｄでガラス瓶容器Ａの口部１を密封して閉蓋される。
本実施例のキャップ体Ｂは、開閉時の回転トルクを抑制でき、安定して密封、開封を繰り返して使用することができる。
When closing the cap body B again, the screw cap C is screwed onto the mouth 1 of the glass bottle container A, and the seal member D seals the mouth 1 of the glass bottle container A to close the lid.
The cap body B of this embodiment can suppress the rotational torque when opening and closing, and can be used for repeated sealing and unsealing in a stable manner.
本発明のキャップ体は、ねじキャップをガラス瓶容器に螺着させて閉蓋する際に、シール部材がガラス瓶容器の口部から内容液が漏れないように強固に密封することができるとともに、キャップ体の開閉時の回転トルクを抑制することができるので、とくに、炭酸飲料などの内圧が高くなる内容液を充填し、王冠で密封されたガラス瓶容器のリキャップ用のキャップ体として広く利用可能である。 When the screw cap is screwed onto a glass bottle container to close it, the sealing member tightly seals the contents to prevent leakage from the mouth of the glass bottle container, and the rotational torque required when opening and closing the cap body is reduced. Therefore, the cap body of the present invention can be widely used as a cap body for recapping glass bottle containers that are filled with contents that build up internal pressure, such as carbonated beverages, and are sealed with crown caps.
Ａ ガラス瓶容器
Ｂ キャップ体
Ｃ ねじキャップ
Ｄ シール部材
ｓ１、ｓ２、ｓ３ シール部
α 隙間
θ１、θ２ 角度
１ 口部
２ 雄ねじ
３ 口部上面
４ 口部内周面
５ 口部外周湾曲面（口部外周面）
１０ 頂壁
１１ 外周壁
１２ 係着突部
１３ 雌ねじ
２０ 天壁
２１ インナーリング
２２ 外周下面部
２２ａ 平坦面部
２２ｂ 傾斜面部
２３ アウターリング
２３ａ 内側面
２３ｂ 外側面
２４ 外縁部
２５ 突出外周部
２５ａ 上外周面
２５ｂ 下外周面
２７ 切欠き
A Glass bottle container B Cap body C Screw cap D Sealing member s1, s2, s3 Sealing portion α Gap θ1, θ2 Angle 1 Mouth portion 2 Male thread 3 Mouth upper surface 4 Mouth inner peripheral surface 5 Mouth outer peripheral curved surface (mouth outer peripheral surface)
10 Top wall 11 Outer wall 12 Engagement protrusion 13 Female screw 20 Top wall 21 Inner ring 22 Lower outer surface 22a Flat surface 22b Inclined surface 23 Outer ring 23a Inner surface 23b Outer surface 24 Outer edge 25 Projecting outer surface 25a Upper outer surface 25b Lower outer surface 27 Notch
Claims (5)
ねじキャップは、頂壁と、頂壁の周縁から垂設される外周壁と、外周壁の内周に形成される係着突部とを備え、
シール部材は、外縁部がねじキャップの係着突部を乗り越え、外周壁の内周上部に係着され、下面が口部上面と密着可能な天壁と、天壁から口部内周面に向けて垂下されるインナーリングと、インナーリングの外側から口部外周面に向けて垂下されるアウターリングとを備え、
アウターリングは、閉蓋時に、内側面が口部外周面に密着するとともに、外側面が係着突部の当接により押し付けられることを特徴とするキャップ体。 A cap body comprising a screw cap that is screwed onto the mouth of a glass bottle container and a sealing member that is attached to the inside of the screw cap,
The screw cap has a top wall, an outer peripheral wall extending downward from the periphery of the top wall, and an engaging projection formed on the inner periphery of the outer peripheral wall,
The sealing member includes a top wall whose outer edge rides over the engaging projection of the screw cap and is engaged with the upper inner periphery of the outer periphery wall, and whose lower surface can be in close contact with the upper surface of the mouth portion, an inner ring hanging down from the top wall toward the inner periphery of the mouth portion, and an outer ring hanging down from the outside of the inner ring toward the outer periphery of the mouth portion,
The cap body is characterized in that, when the lid is closed, the inner surface of the outer ring is in close contact with the outer peripheral surface of the opening, and the outer surface is pressed against it by the engagement projection .
キャップ体は、ガラス瓶容器に螺着した際、インナーリング外周上部と、天壁下面の傾斜面部と、口部上面との間に隙間が形成されることを特徴とする請求項１に記載のキャップ体。 The top wall of the seal member has, on a lower surface between the outer periphery of the inner ring and the inner periphery of the outer ring, an inclined surface portion formed from the outer periphery of the inner ring toward the outer downward side, and a flat surface portion formed from the outer edge of the inclined surface portion toward the inner periphery of the outer ring,
2. The cap body according to claim 1, wherein, when the cap body is screwed onto a glass bottle container, a gap is formed between the upper outer periphery of the inner ring, the inclined surface portion of the lower surface of the top wall, and the upper surface of the mouth portion.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2022088056A JP7791044B2 (en) | 2022-05-30 | 2022-05-30 | Cap body |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2022088056A JP7791044B2 (en) | 2022-05-30 | 2022-05-30 | Cap body |
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| JP2023175555A JP2023175555A (en) | 2023-12-12 |
| JP7791044B2 true JP7791044B2 (en) | 2025-12-23 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004291983A (en) | 2003-03-25 | 2004-10-21 | Japan Crown Cork Co Ltd | Cap |
| JP2017074970A (en) | 2015-10-15 | 2017-04-20 | 日本山村硝子株式会社 | Cap and container with the cap |
| JP2018162097A (en) | 2017-03-27 | 2018-10-18 | 日本クロージャー株式会社 | Synthetic resin cap and cap unit |
| CN111038837A (en) | 2018-10-12 | 2020-04-21 | 义乌市易开盖实业公司 | High-sealing twist cover with strong adaptability |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6121354A (en) * | 1984-07-04 | 1986-01-30 | 日本クラウンコルク株式会社 | Combination of vessel having explosion-proof characteristic and vessel cover |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004291983A (en) | 2003-03-25 | 2004-10-21 | Japan Crown Cork Co Ltd | Cap |
| JP2017074970A (en) | 2015-10-15 | 2017-04-20 | 日本山村硝子株式会社 | Cap and container with the cap |
| JP2018162097A (en) | 2017-03-27 | 2018-10-18 | 日本クロージャー株式会社 | Synthetic resin cap and cap unit |
| CN111038837A (en) | 2018-10-12 | 2020-04-21 | 义乌市易开盖实业公司 | High-sealing twist cover with strong adaptability |
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