JP2010132298A - Synthetic resin spout and method for manufacturing synthetic resin spout - Google Patents
Synthetic resin spout and method for manufacturing synthetic resin spout Download PDFInfo
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本発明は、飲料容器の蓋に使用する合成樹脂製スパウト及び合成樹脂製スパウトの製造方法に関する。 The present invention relates to a synthetic resin spout used for a lid of a beverage container and a method for producing a synthetic resin spout.
飲料容器のスパウトには、一般にボトル等注出口部が開口しそれを螺子キャップ等で封鎖しているもの、イージオープン缶等飲み口となる部分がスコアを介して蓋材と一体になっているものがある。
前者は開封後の再封性には優れているが流通段階での密封性が後者に比べて劣り、後者は流通段階での密封性には優れているが再封性がなく、開口となる部分が外部に露出しているので衛生性において後者に劣っている。
The spout of a beverage container generally has a bottle outlet or the like opened and sealed with a screw cap or the like, and a portion serving as a drinking mouth such as an easy-open can is integrated with a lid material via a score. There is something.
The former is excellent in resealability after opening, but the sealing performance in the distribution stage is inferior to the latter, and the latter is excellent in sealing performance in the distribution stage, but has no resealability and becomes an opening. Since the part is exposed to the outside, it is inferior to the latter in terms of hygiene.
これに対して、飲料容器のスパウトとして、プラスチックの内キャップと、内キャップを内部に装着するプラスチックキャップ装着部を備え、内キャップはキャップ装着部に螺合するネジ部と下方に突出部を有する底部から形成され、キャップ装着部は内キャップに螺合するネジ部と、スコア溝及びヒンジ部を有する底部から形成されているスパウトがある。（特許文献１参照）
しかしながら、プラスティックで成形した場合、キャップ装着部（注出口）の天壁周囲に設けたスコア線（溝）の信頼性が大きな問題となる。この種のスコアを設けた注出口は、蓋と組み合わせる前に、電気的な手段を用いて、薄化された部分に損傷が発生しなかったかの確認を行うのが、一般的である。しかしながら、このキャップ装着部では、開封のために、蓋が天壁を引き上げるよう、互いが係合する突起部を持っている。蓋を組み込むとき、互いの係合部が無理に乗り越えるため、このときのストレスで天壁に設けたスコアが損傷を受けるリスクがある。したがって、この種のキャップ装着部では蓋と組み合わせた後のスコア部分の検査が必須となるが、上述の電気的手段は、蓋で当該部が覆われているため、適用できない。 However, in the case of molding with plastic, the reliability of the score line (groove) provided around the top wall of the cap mounting portion (outlet) becomes a big problem. In general, the spout provided with this kind of score is used to confirm whether or not the thinned portion has been damaged by using an electric means before being combined with the lid. However, this cap mounting portion has protrusions that engage with each other so that the lid pulls up the top wall for opening. When the lid is incorporated, the engaging portions of each other will be forced over, and there is a risk that the score provided on the top wall will be damaged by the stress at this time. Therefore, in this type of cap mounting portion, it is essential to inspect the score portion after being combined with the lid, but the above-described electrical means cannot be applied because the portion is covered with the lid.
この発明は、上記の課題及び不都合を解消することができ、上記キャップ装着部（注出口）を組み立てた後、スコア部分にピンホールなどの損傷による漏れが発生していないことを確認することができる合成樹脂製スパウト及び合成樹脂製スパウトの製造方法を提供することを目的とする。 This invention can solve the above-mentioned problems and inconveniences, and after assembling the cap mounting part (spout port), it can be confirmed that there is no leakage due to damage such as pinholes in the score part. An object of the present invention is to provide a synthetic resin spout that can be produced and a method for producing a synthetic resin spout.
この発明の合成樹脂製スパウトは、容器本体の上部に接合される蓋本体と、蓋本体に装着されたキャップと、蓋本体の注出口筒部の外周に形成された封鎖用雄ネジと、注出口筒部の上部に段差部を介して形成された径小筒部と、径小筒部の上面を密閉する内天壁と、径小筒部の外周面に形成された易破断性環状のスコアと、スコアの上側の外周面に形成された本体側係合部と、キャップの上部の外天壁と、キャップの側壁のスカート壁と、スカート壁の内周面に形成された封鎖用雄ネジに螺合して密封する雌ネジと、スカート壁の内周面に形成され、本体側係合部と係合するキャップ側係合部とからなる合成樹脂製スパウトであって、
内天壁が、変形容易な可撓性薄壁からなり、外天壁との間隙に生じた空間の膨張若しくは収縮により変形することを特徴とする。
The spout made of synthetic resin according to the present invention includes a lid body joined to the upper portion of the container body, a cap attached to the lid body, a male screw for sealing formed on the outer periphery of the spout cylinder portion of the lid body, A small-diameter tubular portion formed on the upper portion of the outlet tubular portion via a stepped portion, an inner ceiling wall that seals the upper surface of the small-diameter tubular portion, and an easily breakable annular shape formed on the outer peripheral surface of the small-diameter tubular portion The score, the main body side engaging portion formed on the outer peripheral surface above the score, the outer top wall of the upper portion of the cap, the skirt wall of the side wall of the cap, and the sealing male formed on the inner peripheral surface of the skirt wall A synthetic resin spout comprising a female screw that is screwed into a screw and sealed, and a cap side engaging portion that is formed on the inner peripheral surface of the skirt wall and engages with the main body side engaging portion,
The inner ceiling wall is made of a flexible thin wall that can be easily deformed, and is deformed by expansion or contraction of a space generated in a gap with the outer ceiling wall.
この発明の好ましい態様の合成樹脂製スパウトにおいて、キャップが、側蓋本体の注出口筒部の外周を囲うようにスカート壁の下端に、切断離脱容易に設けられたタンパーエビデンスを有する。 In a preferred embodiment of the synthetic resin spout of the present invention, the cap has tamper evidence provided at the lower end of the skirt wall so as to be easily cut and detached so as to surround the outer periphery of the spout tube portion of the side lid body.
この発明の合成樹脂製スパウトの製造方法は、容器本体の上部に接合される蓋本体と、蓋本体に装着されたキャップと、蓋本体の注出口筒部の外周に形成された封鎖用雄ネジと、注出口筒部の上部に段差部を介して形成された径小筒部と、径小筒部の上面を密閉する内天壁と、径小筒部の外周面に形成された易破断性環状のスコアと、スコアの上側の外周面に形成された本体側係合部と、キャップの上部の外天壁と、キャップの側壁のスカート壁と、スカート壁の内周面に形成された封鎖用雄ネジに螺合して密封する雌ネジと、スカート壁の内周面に形成され、本体側係合部と係合するキャップ側係合部とからなる合成樹脂製スパウトの製造方法であって、
内天壁を、外天壁との間隙に生じた空間の膨張若しくは収縮により変形するように、変形容易な可撓性薄壁に成形し、
蓋本体にキャップを装着して密封した後、蓋本体の内部側の圧力を高めて内天壁の変形により空間の収縮の有無を観察してスコアにおける漏れ無し若しくは漏れを検知する、
ことを特徴とする。
The synthetic resin spout manufacturing method according to the present invention includes a lid body joined to an upper portion of a container body, a cap attached to the lid body, and a male screw for sealing formed on the outer periphery of a spout tube portion of the lid body. A small-diameter tubular portion formed on the upper portion of the spout tubular portion via a step portion, an inner ceiling wall that seals the upper surface of the small-diameter tubular portion, and an easy break formed on the outer peripheral surface of the small-diameter tubular portion Formed on the outer peripheral wall of the upper side of the score, the outer ceiling wall of the upper part of the cap, the skirt wall of the side wall of the cap, and the inner peripheral surface of the skirt wall A synthetic resin spout manufacturing method comprising a female screw that is screwed into a sealing male screw and sealed, and a cap side engaging portion that is formed on the inner peripheral surface of the skirt wall and engages with a main body side engaging portion. There,
The inner ceiling wall is molded into a flexible thin wall that is easily deformed so as to be deformed by expansion or contraction of the space generated in the gap with the outer ceiling wall,
After attaching the cap to the lid body and sealing it, increase the pressure on the inside of the lid body and observe the presence or absence of contraction of the space due to deformation of the inner ceiling wall to detect no leakage or leakage in the score,
It is characterized by that.
この発明の好ましい態様の合成樹脂製スパウトの製造方法において、容器本体の上部に接合される蓋本体と、蓋本体に装着されたキャップと、蓋本体の注出口筒部の外周に形成された封鎖用雄ネジと、注出口筒部の上部に段差部を介して形成された径小筒部と、径小筒部の上面を密閉する内天壁と、径小筒部の外周面に形成された易破断性環状のスコアと、スコアの上側の外周面に形成された本体側係合部と、キャップの上部の外天壁と、キャップの側壁のスカート壁と、スカート壁の内周面に形成された封鎖用雄ネジに螺合して密封する雌ネジと、スカート壁の内周面に形成され、本体側係合部と係合するキャップ側係合部とからなる合成樹脂製スパウトの製造方法であって、
内天壁を、外天壁との間隙に生じた空間の膨張若しくは収縮により変形するように、変形容易な可撓性薄壁に成形し、
低圧下で蓋本体にキャップを装着して密封した後、常圧下で空間の膨張の有無を観察してスコアにおける漏れ若しくは漏れ無しを検知する、
ことを特徴とする。
In the method of manufacturing a synthetic resin spout according to a preferred aspect of the present invention, a lid body joined to the upper portion of the container body, a cap attached to the lid body, and a sealing formed on the outer periphery of the spout cylinder portion of the lid body Formed on the outer peripheral surface of the small diameter cylindrical portion, the inner top wall that seals the upper surface of the small diameter cylindrical portion, An easy-to-break ring-shaped score, a body-side engaging portion formed on the outer peripheral surface above the score, an outer ceiling wall on the upper portion of the cap, a skirt wall on the side wall of the cap, and an inner peripheral surface of the skirt wall A synthetic resin spout comprising a female screw that is screwed into and sealed with the formed male screw for sealing, and a cap side engaging portion that is formed on the inner peripheral surface of the skirt wall and engages with the main body side engaging portion. A manufacturing method comprising:
The inner ceiling wall is molded into a flexible thin wall that is easily deformed so as to be deformed by expansion or contraction of the space generated in the gap with the outer ceiling wall,
After attaching a cap to the lid body under low pressure and sealing it, observe the presence or absence of expansion of the space under normal pressure to detect leakage or no leakage in the score,
It is characterized by that.
この発明による合成樹脂製スパウトでは、容器本体の上部に接合される蓋本体と、蓋本体に装着されたキャップとが別々に成形され、成形後にキャップをネジ締めすることによって、キャップのキャップ側係合部が弾性変形により本体側係合部より上部の径小筒部の周壁外面を通過して本体側係合部の位置に達すると弾性により復帰して本体側係合部に係合し、開栓方向の回転による上昇に抵抗を与え、確実に本体側係合部と係合する。
本体の注出口は天壁によって完全に密封され、その状態で天壁の上面はキャップによって覆われているので、容器本体の開口部には外部からの負荷が直接かからず、流通段階等でスコアが不用意に破断する事故を防ぐことができる。
In the synthetic resin spout according to the present invention, the lid body to be joined to the upper part of the container body and the cap attached to the lid body are separately molded, and the cap is screwed after the molding to When the joint part passes through the outer peripheral surface of the small-diameter cylindrical part above the main body side engaging part due to elastic deformation and reaches the position of the main body side engaging part, it is elastically restored and engaged with the main body side engaging part, Resistance is given to the rise due to rotation in the opening direction, and the main body side engaging portion is reliably engaged.
The spout of the main body is completely sealed by the top wall, and the top surface of the top wall is covered with a cap in this state, so the external load is not directly applied to the opening of the container main body, and at the distribution stage etc. Accidental breakage of the score can be prevented.
この状態から、キャップを回すことにより、ネジ作用によりキャップが本体に対して上昇し、キャップ側係合部と本体側係合部の係合により、径小部が上方にひきあげられてスコアに破断荷重が作用し、スコアが破断し、径小部がキャップと一体に上昇して注出口を開口する。 From this state, when the cap is turned, the cap rises with respect to the main body by the screw action, and the small diameter portion is pulled upward by the engagement of the cap side engaging portion and the main body side engaging portion, and breaks into a score. The load acts, the score breaks, the small diameter part rises integrally with the cap and opens the spout.
この発明による合成樹脂製スパウトでは、内天壁が、変形容易な可撓性薄壁からなり、外天壁との間隙に生じた空間の膨張若しくは収縮により変形する。注出口の内側に上記間隙の内圧Ｐ１より高い圧Ｐ２を加えると、その圧力差により、内天壁に設けられた薄壁が平坦になる。もし、スコアに漏れがある場合は、薄壁は変形せず、そのままの状態を保つ。
製造工程の検査ステップで、薄壁の変位を、例えば、変位計で測定すれば、スコア部に漏れがあるか否かを簡単に判定をできる。
別の態様では、合成樹脂製スパウトを組み立てるとき、例えば、真空チャンバー内で行い、Ｐ１を大気より低くすると、大気中で薄壁は平らにつぶれた状態になる。その後、検査ステップに送られる間に、スコア部に漏れの無い良品は、薄壁が平らのままであるが、漏れのあるものは、プラスチックの薄壁の弾力で元に戻る。この違いを変位計などで計測すれば、漏れの有無を確認できる。
In the synthetic resin spout according to the present invention, the inner ceiling wall is made of a flexible thin wall that can be easily deformed, and is deformed by the expansion or contraction of the space generated in the gap with the outer ceiling wall. When a pressure P2 higher than the internal pressure P1 of the gap is applied to the inside of the spout, the thin wall provided on the inner ceiling wall becomes flat due to the pressure difference. If there is a leak in the score, the thin wall is not deformed and remains as it is.
If the displacement of the thin wall is measured with a displacement meter, for example, in the inspection step of the manufacturing process, it can be easily determined whether or not there is a leak in the score portion.
In another aspect, when assembling the spout made of synthetic resin, for example, in a vacuum chamber, if P1 is made lower than the atmosphere, the thin wall is flattened in the atmosphere. After that, while being sent to the inspection step, the non-defective product having no leakage in the score portion has the thin wall flat, but the leaking one is restored by the elasticity of the plastic thin wall. If this difference is measured with a displacement meter or the like, the presence or absence of leakage can be confirmed.
以下、本発明の実施の形態について図面を参照しながら詳細に説明する。
図１は、この発明による合成樹脂製スパウトの実施例を概略的に示す側断面図である。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side sectional view schematically showing an embodiment of a synthetic resin spout according to the present invention.
図１に示す実施例の合成樹脂製スパウト１は、容器本体２の上部に接合される蓋本体３と、蓋本体３に装着されたキャップ４と、蓋本体の注出口筒部５の外周に形成された封鎖用雄ネジ６と、注出口筒部５の上部に段差部６を介して形成された径小筒部７と、径小筒部７の上面を密閉する内天壁８と、径小筒部７の外周面に形成された易破断性環状のスコア９と、スコア９の上側の外周面に形成された本体側係合部１０と、キャップ４の上部の外天壁１１と、キャップ４の側壁のスカート壁１２と、スカート壁１２の内周面に形成された封鎖用雄ネジ５に螺合して密封する雌ネジ１３と、スカート壁１２の内周面に形成され、本体側係合部と係合するキャップ側係合部１４とからなる。
この実施例の特徴は、内天壁８が、変形容易な可撓性薄壁からなり、外天壁１１との間隙Ａに生じた空間Ａの膨張若しくは収縮により変形する。
A spout 1 made of synthetic resin according to the embodiment shown in FIG. 1 has a lid body 3 joined to an upper portion of a container body 2, a cap 4 attached to the lid body 3, and an outer periphery of a spout cylinder portion 5 of the lid body. The formed male screw 6 for sealing, the small diameter cylindrical part 7 formed on the upper part of the spout cylindrical part 5 via the step part 6, and the inner ceiling wall 8 that seals the upper surface of the small diameter cylindrical part 7, An easily breakable annular score 9 formed on the outer peripheral surface of the small diameter cylindrical portion 7, a main body side engaging portion 10 formed on the outer peripheral surface on the upper side of the score 9, and an outer top wall 11 on the upper portion of the cap 4 , A skirt wall 12 on the side wall of the cap 4, a female screw 13 that is screwed into a sealing male screw 5 formed on the inner peripheral surface of the skirt wall 12, and an inner peripheral surface of the skirt wall 12. The cap-side engaging portion 14 is engaged with the main-body-side engaging portion.
The feature of this embodiment is that the inner ceiling wall 8 is made of a flexible thin wall that can be easily deformed, and is deformed by expansion or contraction of the space A generated in the gap A with the outer ceiling wall 11.
図１に示す実施例の合成樹脂製スパウト１は、キャップ４が、側蓋本体の注出口筒部の外周を囲うようにスカート壁１２の下端に、切断離脱容易に設けられたタンパーエビデンス１５を有する。 The spout 1 made of synthetic resin of the embodiment shown in FIG. 1 has tamper evidence 15 provided at the lower end of the skirt wall 12 so that the cap 4 surrounds the outer periphery of the spout tube portion of the side lid body so as to be easily cut and detached. Have.
図１に示す実施例の合成樹脂製スパウト１は、次のように機能作用する。
この例による合成樹脂製スパウト１は、蓋本体３と、キャップ４とが別々に成形され、成形後にキャップ４を蓋本体３に被せネジ締めする。キャップ４のキャップ側係合部１４が弾性変形により径小筒部７の周壁外面を通過して本体側係合部１０の位置に達すると弾性により復帰して本体側係合部１０に係合し、本体側係合部１０と係合する。
本体の注出口は内天壁８によって完全に密封され、その状態で内天壁８の上面は、キャップ４によって覆われているので、容器本体の開口部には外部からの負荷が直接かからず、流通段階等でスコア９が不用意に破断することを防ぐ。
The synthetic resin spout 1 of the embodiment shown in FIG. 1 functions as follows.
In the synthetic resin spout 1 according to this example, the lid main body 3 and the cap 4 are separately molded, and after the molding, the cap 4 is put on the lid main body 3 and screwed. When the cap-side engaging portion 14 of the cap 4 passes through the outer peripheral surface of the small-diameter tubular portion 7 by elastic deformation and reaches the position of the main body-side engaging portion 10, the cap-side engaging portion 14 is elastically restored and engaged with the main body-side engaging portion 10. Then, the main body side engaging portion 10 is engaged.
Since the outlet of the main body is completely sealed by the inner ceiling wall 8 and the upper surface of the inner ceiling wall 8 is covered with the cap 4 in this state, a load from the outside is directly applied to the opening of the container body. The score 9 is prevented from being inadvertently broken at the distribution stage or the like.
この状態から、開封のためにキャップ４を回すことにより、ネジ作用によりキャップ４が本体３に対して上昇し、キャップ側係合部１４と本体側係合部１０の係合により、径小部７の上部が上方に引き上げられてスコア９に破断荷重が作用し、スコア９が破断し、径小部７の上部がキャップ４と一体に上昇して注出口を開口する。 From this state, by turning the cap 4 for unsealing, the cap 4 rises with respect to the main body 3 by the screw action, and the small diameter portion is obtained by the engagement between the cap side engaging portion 14 and the main body side engaging portion 10. The upper portion of 7 is pulled upward, and a breaking load acts on the score 9, the score 9 is broken, and the upper portion of the small diameter portion 7 rises integrally with the cap 4 to open the spout.
この実施例による合成樹脂製スパウト１では、内天壁８が、変形容易な可撓性薄壁からなり、外天壁との間隙に生じた空間Ａの膨張若しくは収縮により変形する。注出口の内側に上記間隙の内圧Ｐ１より高い圧Ｐ２を加えると、その圧力差により、内天壁８に設けられた薄壁が平坦になる。もし、スコアに漏れがある場合は、薄壁は変形せず、そのままの状態を保つ。 In the synthetic resin spout 1 according to this embodiment, the inner ceiling wall 8 is made of a flexible thin wall that can be easily deformed, and is deformed by expansion or contraction of the space A generated in the gap with the outer ceiling wall. When a pressure P2 higher than the internal pressure P1 of the gap is applied to the inside of the spout, the thin wall provided on the inner ceiling wall 8 becomes flat due to the pressure difference. If there is a leak in the score, the thin wall is not deformed and remains as it is.
この実施例による合成樹脂製スパウトの製造方法では、内天壁８を、外天壁１１との間隙に生じた空間Ａの膨張若しくは収縮により変形するように、変形容易な可撓性薄壁に成形し、蓋本体３にキャップ４を装着して密封した後、蓋本体３の内部側の圧力Ｐ２を高めて内天壁８の変形により空間Ａの収縮の有無を観察してスコア９における漏れ無し若しくは漏れを検知する。
この製造工程の検査ステップはで、薄壁８の変位を、例えば、変位計で測定すれば、スコア部に漏れがあるか否かを簡単に判定をできる。
In the synthetic resin spout manufacturing method according to this embodiment, the inner ceiling wall 8 is formed into a flexible thin wall that can be easily deformed so as to be deformed by expansion or contraction of the space A generated in the gap with the outer ceiling wall 11. After forming and sealing with the cap 4 attached to the lid body 3, the pressure P2 on the inner side of the lid body 3 is increased and the inner ceiling wall 8 is deformed to observe the presence or absence of contraction of the space A. Detects none or leaks.
In the inspection step of this manufacturing process, if the displacement of the thin wall 8 is measured by, for example, a displacement meter, it can be easily determined whether or not there is a leak in the score portion.
別の実施例による合成樹脂製スパウトの製造方法では、内天壁８を、外天壁１１との間隙に生じた空間Ａの膨張若しくは収縮により変形するように、変形容易な可撓性薄壁に成形し、低圧下で蓋本体３にキャップ４を装着して密封した後、常圧下で空間Ａの膨張の有無を観察してスコアにおける漏れ若しくは漏れ無しを検知する。
この別態様では、合成樹脂製スパウトを組み立てるとき、例えば、真空チャンバー内で行い、Ｐ１を大気より低くすると、大気中で薄壁は平らにつぶれた状態になる。その後、検査ステップに送られる間に、スコア９に漏れの無い良品は、薄壁が平らのままであるが、漏れのあるものは、プラスチックの薄壁８の弾力で元に戻る。この違いを変位計などで計測して、漏れの有無を確認する。
In a method of manufacturing a spout made of synthetic resin according to another embodiment, a flexible thin wall that is easily deformable so that the inner ceiling wall 8 is deformed by expansion or contraction of the space A generated in the gap with the outer ceiling wall 11. After the cap 4 is attached to the lid body 3 under low pressure and sealed, the presence or absence of expansion of the space A is observed under normal pressure to detect leakage or no leakage in the score.
In this other aspect, when assembling the synthetic resin spout, for example, in a vacuum chamber, if P1 is made lower than the atmosphere, the thin wall is flattened in the atmosphere. Thereafter, while being sent to the inspection step, the non-defective product having a score of 9 has a thin wall that remains flat, but the leaked product is restored by the elasticity of the plastic thin wall 8. Measure this difference with a displacement meter to check for leaks.
なお、本発明は前記実施の形態に限定されるものではなく、本発明の趣旨に基づいて種々変形させることが可能であり、それらを本発明の範囲から排除するものではない。 In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.
この発明によって、牛乳、ジュースなどの包装容器用の合成樹脂製スパウトに利用することができる。 By this invention, it can utilize for the synthetic resin spouts for packaging containers, such as milk and juice.
１ 合成樹脂製スパウト
２ 容器本体
３ 蓋本体
４ キャップ
５ 注出口筒部
６ 段差部
７ 径小筒部
８ 内天壁
９ スコア
１０ 本体側係合部
DESCRIPTION OF SYMBOLS 1 Synthetic resin spout 2 Container main body 3 Lid main body 4 Cap 5 Outlet cylinder part 6 Step part 7 Diameter small cylinder part 8 Inner ceiling wall 9 Score 10 Main body side engaging part
Claims (4)
該内天壁が、変形容易な可撓性薄壁からなり、該外天壁との間隙に生じた空間の膨張若しくは収縮により変形する
ことを特徴とする合成樹脂製スパウト。 A lid body joined to the upper part of the container body, a cap mounted on the lid body, a male screw for sealing formed on the outer periphery of the spout cylinder part of the lid body, and an upper part of the spout cylinder part A small diameter cylindrical portion formed through the stepped portion, an inner ceiling wall that seals the upper surface of the small diameter cylindrical portion, an easily breakable annular score formed on the outer peripheral surface of the small diameter cylindrical portion, A main body side engaging portion formed on the outer peripheral surface above the score, an outer top wall on the upper portion of the cap, a skirt wall on the side wall of the cap, and the sealing formed on the inner peripheral surface of the skirt wall A synthetic resin spout comprising a female screw that is screwed into a male screw for sealing, and a cap side engaging portion that is formed on the inner peripheral surface of the skirt wall and engages with the main body side engaging portion. ,
A spout made of a synthetic resin, wherein the inner ceiling wall is made of a flexible thin wall that is easily deformable, and is deformed by expansion or contraction of a space generated in a gap with the outer ceiling wall.
該内天壁を、該外天壁との間隙に生じた空間の膨張若しくは収縮により変形するように、変形容易な可撓性薄壁に成形し、
該蓋本体に該キャップを装着して密封した後、該蓋本体の内部側の圧力を高めて該内天壁の変形により該空間の収縮の有無を観察して該スコアにおける漏れ無し若しくは漏れを検知する、
ことを特徴とする合成樹脂製スパウトの製造方法。 A lid body joined to the upper part of the container body, a cap mounted on the lid body, a male screw for sealing formed on the outer periphery of the spout cylinder part of the lid body, and an upper part of the spout cylinder part A small diameter cylindrical portion formed through the stepped portion, an inner ceiling wall that seals the upper surface of the small diameter cylindrical portion, an easily breakable annular score formed on the outer peripheral surface of the small diameter cylindrical portion, A main body side engaging portion formed on the outer peripheral surface above the score, an outer top wall on the upper portion of the cap, a skirt wall on the side wall of the cap, and the sealing formed on the inner peripheral surface of the skirt wall A method for producing a spout made of synthetic resin comprising: a female screw that is screwed into a male screw for sealing; and a cap side engaging portion that is formed on the inner peripheral surface of the skirt wall and engages with the main body side engaging portion Because
The inner ceiling wall is molded into a flexible thin wall that is easily deformed so as to be deformed by expansion or contraction of the space generated in the gap with the outer ceiling wall,
After the cap is attached to the lid body and sealed, the pressure on the inner side of the lid body is increased, and the presence or absence of leakage in the score is checked by observing whether or not the space contracts due to deformation of the inner ceiling wall. Detect
A method for producing a spout made of synthetic resin.
該内天壁を、該外天壁との間隙に生じた空間の膨張若しくは収縮により変形するように、変形容易な可撓性薄壁に成形し、
低圧下で該蓋本体に該キャップを装着して密封した後、常圧下で該空間の膨張の有無を観察して該スコアにおける漏れ若しくは漏れ無しを検知する、
ことを特徴とする合成樹脂製スパウトの製造方法。 A lid body joined to the upper part of the container body, a cap mounted on the lid body, a male screw for sealing formed on the outer periphery of the spout cylinder part of the lid body, and an upper part of the spout cylinder part A small diameter cylindrical portion formed through the stepped portion, an inner ceiling wall that seals the upper surface of the small diameter cylindrical portion, an easily breakable annular score formed on the outer peripheral surface of the small diameter cylindrical portion, A main body side engaging portion formed on the outer peripheral surface above the score, an outer top wall on the upper portion of the cap, a skirt wall on the side wall of the cap, and the sealing formed on the inner peripheral surface of the skirt wall A method for producing a spout made of synthetic resin comprising: a female screw that is screwed into a male screw for sealing; and a cap side engaging portion that is formed on the inner peripheral surface of the skirt wall and engages with the main body side engaging portion Because
The inner ceiling wall is molded into a flexible thin wall that is easily deformed so as to be deformed by expansion or contraction of the space generated in the gap with the outer ceiling wall,
After the cap is attached to the lid body under low pressure and sealed, the presence or absence of expansion of the space is observed under normal pressure to detect leakage or no leakage in the score.
A method for producing a spout made of synthetic resin.
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| JP2008308062A JP5232340B2 (en) | 2008-12-03 | 2008-12-03 | Synthetic resin spout and method for producing synthetic resin spout |
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| JP2008308062A JP5232340B2 (en) | 2008-12-03 | 2008-12-03 | Synthetic resin spout and method for producing synthetic resin spout |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015501763A (en) * | 2011-11-18 | 2015-01-19 | テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． | Membrane and neck with membrane |
| JP2016522128A (en) * | 2013-06-20 | 2016-07-28 | テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． | Cap with cutting element |
| EP3296223A1 (en) * | 2016-09-20 | 2018-03-21 | Tetra Laval Holdings & Finance S.A. | A spout for a food package |
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| JPH04189755A (en) * | 1990-11-14 | 1992-07-08 | Ooshita Sangyo Kk | Cap structure |
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| JPH0535615U (en) * | 1991-08-09 | 1993-05-14 | 昭和電工株式会社 | Airtightness inspection device for sealed containers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2015501763A (en) * | 2011-11-18 | 2015-01-19 | テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． | Membrane and neck with membrane |
| US9676531B2 (en) | 2011-11-18 | 2017-06-13 | Tetra Laval Holdings & Finance S.A. | Membrane, and a neck including such membrane |
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| WO2018054844A1 (en) * | 2016-09-20 | 2018-03-29 | Tetra Laval Holdings & Finance S.A. | A spout for a food package |
| CN109715511A (en) * | 2016-09-20 | 2019-05-03 | 利乐拉瓦尔集团及财务有限公司 | Nozzle for food packaging |
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| JP5232340B2 (en) | 2013-07-10 |
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