WO2018163393A1 - Synthetic resin cap and container - Google Patents

Synthetic resin cap and container Download PDF

Info

Publication number
WO2018163393A1
WO2018163393A1 PCT/JP2017/009640 JP2017009640W WO2018163393A1 WO 2018163393 A1 WO2018163393 A1 WO 2018163393A1 JP 2017009640 W JP2017009640 W JP 2017009640W WO 2018163393 A1 WO2018163393 A1 WO 2018163393A1
Authority
WO
WIPO (PCT)
Prior art keywords
band
synthetic resin
hook
cap
tamper evidence
Prior art date
Application number
PCT/JP2017/009640
Other languages
French (fr)
Japanese (ja)
Inventor
隆宏 千葉
伸生 川村
淳史 小野
慎吾 梅木
Original Assignee
日本山村硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本山村硝子株式会社 filed Critical 日本山村硝子株式会社
Priority to PCT/JP2017/009640 priority Critical patent/WO2018163393A1/en
Priority to JP2017515270A priority patent/JP6180687B1/en
Publication of WO2018163393A1 publication Critical patent/WO2018163393A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt

Definitions

  • This invention relates to the synthetic resin cap and container with which the opening part of the container which accommodates contents, such as a drink, for example is mounted
  • a cap attached to the mouth of a container for storing contents such as beverages As a cap attached to the mouth of a container for storing contents such as beverages, a cap that can be confirmed at a glance whether or not it is opened is widely used.
  • the hook (locking means) provided on the inner periphery of the tamper evidence band is attached to the outer periphery of the container mouth portion in accordance with the opening operation (first opening operation) from the state where it is attached to the container mouth portion.
  • the bridge (bridge) formed between the perforated slits that define the tamper-evidence band and the skirt wall is broken, and the cap body And the tamper evidence band are separated from each other (see Patent Document 1). Therefore, it is possible to easily confirm whether or not the opening operation has been performed by visually confirming whether or not the bridge constituting the annular weakened portion is broken.
  • the cap described in Patent Document 1 has an inner diameter that is smaller than the outer diameter of the annular protrusion above the hook on the inner circumferential surface of the tamper evidence band and extends 0.3 to 0.7 mm in the vertical direction. Since the surface is provided with a cylindrical fitting lower part, when opening the cap attached to the container mouth, the cap main body is prevented from rattling and the bridge main body is not broken. So-called slipping off from the container mouth can be prevented, and the tamper evidence property is improved. On the other hand, the torque required for opening increases, which may make opening difficult.
  • the present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to provide a cap and container made of a synthetic resin that can improve tapping evidence while improving tapping evidence. is there.
  • a synthetic resin cap comprises a skirt wall provided with a female screw that engages with a male screw formed on the outer periphery of a container mouth portion, and an annular weakening portion at a lower portion of the skirt wall.
  • a plurality of protrusions are provided at intervals in the direction, and on the inner peripheral side of the tamper evidence band, the hook protrudes to the inside of the tamper evidence band above the hook, and the amount of protrusion is continuous with a protrusion smaller than the hook. Furthermore, on the inner peripheral side of the tamper evidence band, an inclined portion whose inner diameter increases toward the upper side is provided above the protruding portion, and the inclined portion The inner diameter extends from the upper end to the upper end of the protrusion with a gradient of 35 ° to 45 °, and the axial length is 0.2 mm to 0.8 mm. ).
  • the outer diameter of the annular protrusion is smaller than the inner diameter of the portion above the inclined portion in the tamper evidence band and larger than the inner diameter of the protruding portion, and is formed in the container mouth portion.
  • at least part of the corner portion located from the outer peripheral surface to the lower surface of the annular protrusion is positioned at a height position between the upper end and the lower end of the inclined portion. (Claim 2).
  • a container according to the present invention includes the synthetic resin cap according to claim 1 or 2 (claim 3).
  • a cap and container made of a synthetic resin that can improve tapping evidence while improving tamper evidence are obtained.
  • the inclined portion having a predetermined gradient and axial length prevents the so-called slipping off at the time of opening, while the opening torque is abrupt. An increase or the like can also be prevented.
  • the corner portion of the annular projection of the container mouth portion corresponds to this inclined portion in a sealed state. Therefore, it is easy to manufacture so as to be positioned at a position where it is possible to obtain an advantage that an allowable manufacturing error increases.
  • a synthetic resin cap (hereinafter referred to as a cap) 1 shown in FIGS. 1 and 2 is used by being attached to a mouth M of a container such as a plastic bottle, for example, and is made of polyethylene by compression molding or injection molding. It is molded integrally.
  • the raw material which forms the cap 1 is not specifically limited, Polypropylene etc. other than the polyethylene used by this embodiment are used suitably.
  • the right half of the cap 1 is not shown.
  • the cap 1 has a substantially circular top wall 2 and a substantially cylindrical skirt wall 3 extending downward from the outer peripheral portion of the top wall 2 in plan view.
  • a knurled groove 4 is provided on the outer peripheral surface of the skirt wall 3
  • a female screw 5 is provided on the inner peripheral surface.
  • the female screw 5 can be coupled to a male screw M1 formed on the outer periphery of the container mouth portion M ( (See FIG. 2).
  • the cap 1 is a pill fur-proof cap that has a function of proving that it has not been opened (that has never been opened), and the lower part of the skirt wall 3 has an annular weakening extending over the entire circumference of the skirt wall 3.
  • a tamper evidence band (hereinafter, simply referred to as “band”) 7 is connected via a portion 6.
  • the annular weakening 6 defines the skirt wall 3 and the band 7 up and down, and includes a slit (perforated) that extends intermittently in the circumferential direction of the skirt wall 3 and the band 7 and an adjacent slit. And the bridge breaks when pulled with a predetermined force.
  • a plurality of hooks 8 are provided on the inner circumferential side of the band 7 so as to project inwardly and increase in the amount of inward projection toward the upper side at intervals in the circumferential direction. It is.
  • Each hook 8 is substantially below the annular protrusion (bead portion) 9 (see FIG. 1) formed below the male screw M1 on the outer periphery of the container mouth portion M in a state where the cap 1 is attached to the container mouth portion. And is locked to the annular protrusion 9 by an opening operation. That is, the hook 8 is configured to be able to be locked to the annular protrusion 9 from below.
  • a protrusion 10 protrudes inward of the band 7 above the hook 8, and the protrusion is smaller than the hook 9.
  • an inclined portion 11 whose inner diameter increases toward the upper side is connected.
  • the distance (axial distance) h1 from the lower end of the hook 8 to the lower end of the band 7 is 1.6 mm
  • the minimum inner diameter d1 of the hook 8 is 26.5 mm.
  • the upper surface of the hook 8 is formed in a horizontal plane
  • the distance (axial distance) h2 to the annular weakened portion 6 is 2.3 mm.
  • the protruding portion 10 is configured such that the inner peripheral surface is cylindrical, has an inner diameter d3 that is smaller than the inner diameter d2 of the portion above the protruding portion 10 and the inclined portion 11 in the band 7, and is outside the annular protrusion 9.
  • the diameter is smaller than d2 and larger than d3.
  • d2 is 28.10 mm
  • d3 is 27.50 mm.
  • the thickness t of the portion of the band 7 above the protruding portion 10 and the inclined portion 11 may be 0.45 to 0.6 mm, for example, and is 0.55 mm in this example.
  • the distance (axial distance) h3 from the upper end of the protrusion 10 to the annular protrusion 9 is 0.088 mm, and the axis of the protrusion 10
  • the length h4 in the direction is 0.21 mm. That is, the sum of h3 and h4 is 0.298 mm and is configured to be 0.3 mm or less. If the sum of h3 and h4 is more than 0.3 mm, the distance until the hook 8 engages with the annular protrusion 9 at the time of opening is too long, and there is a high possibility that the tamper evidence property will be hindered.
  • h4 is preferably 0.1 mm or more, and the total of h3 and h4 is preferably 0.2 mm or more.
  • the corner portion 9a located from the outer peripheral surface to the lower surface of the annular protrusion 9 extends from the upper end to the lower end of the inclined portion 11. It is comprised so that it may be located in the height position between (refer FIG. 3). At this time, the corner portion 9 a may or may not be in contact with the inclined portion 11, but it is preferable that the annular protrusion 9 does not contact at least a portion other than the inclined portion 11. This is because the opening torque increases when such contact occurs.
  • the inclined portion 11 extends from its upper end toward the upper end of the projecting portion 10 with a gradient ⁇ of 35 ° to 45 ° so that its inner diameter decreases, and its axial direction
  • the length h5 is 0.2 mm to 0.8 mm, preferably 0.2 mm to 0.4 mm.
  • the gradient ⁇ is less than 35 degrees
  • the annular protrusion 9 protrudes with almost no contact even after the opening of the plug is started. If the inclined portion 11 is surely brought into contact with the annular protrusion 9 in a sealed state, the annular protrusion 9 is located above the inclined portion 11 on the inner surface of the band 7. There is an increased risk of contact.
  • the gradient ⁇ is more than 45 degrees, the opening torque increases rapidly after the opening operation is started, and the possibility of hindering the opening operation increases.
  • the axial length h5 of the inclined portion 11 is less than 0.2 mm, it is difficult to position the annular protrusion 9 at a height position from the upper end to the lower end of the inclined portion 11 in a sealed state. If it exceeds 8 mm, the protruding length of the portion protruding inward from the protruding portion 10 on the upper surface of the hook 8 is insufficient, and the hook 8 does not lock well with the annular protrusion 9, and so-called slipping may occur when the plug is opened. Will increase.
  • the corner part of the annular projection 9 of the container mouth part M in the sealed state is the inclined part 11. It is easy to manufacture so as to be located at the corresponding position, and there are advantages such as an increased manufacturing error.
  • the protruding portion 10 and the inclined portion 11 are provided corresponding to each hook 8 (only at a position corresponding to the upper side of each hook 8).
  • at least one of the protruding portion 10 and the inclined portion 11 may be continuously provided in the circumferential direction of the band 7.
  • the protrusion part 10 and the inclination part 11 are continuous in the circumferential direction of the band 7 from the left end of each hook 8 above each hook 8 to the right end. Any one or both may be provided so as to be intermittent in the circumferential direction of the band 7 between the left end and the right end of each hook 8 above each hook 8.
  • each inclined portion 11 may be equalized or may vary, for example, three inclined portions 11 having a gradient ⁇ of 38 degrees and an inclined portion having a gradient ⁇ of 43 degrees. It is also possible to provide two 11.

Abstract

Provided are a synthetic resin cap and a container with which it is possible to improve opening operability while establishing excellent properties for showing evidence of tampering. A cap 1 equipped with a skirt wall 3 in which there is provided a female screw 5 threadably mounted on a male screw M1 formed on the outer periphery of a container opening M, and a band 7 connected to the lower part of the skirt wall with an annular weakened part 6 interposed therebetween, wherein: a plurality of hooks 8 capable of locking, from below, an annular projection 9 provided to the outer periphery of the container opening is provided to the inner-peripheral side of the band at intervals in the circumferential direction; a protruding part 10 that protrudes inward from the band above the hooks and that protrudes by an amount less than that of the hooks extends on the inner-peripheral side of the band; an inclined part 11 of which the inner diameter increases in correlation with greater height above the protruding part is provided to the inner-peripheral side of the band; and the inclined part extends from the upper end thereof toward the upper end of the protruding part such that the inner diameter decreases at a gradient θ of 35-45°m and the axial-direction length h5 of the inclined part is 0.2-0.8 mm.

Description

合成樹脂製キャップ及び容器Synthetic resin caps and containers
　本発明は、例えば、飲料物等の内容物を収容する容器の口部に装着される合成樹脂製キャップ及び容器に関する。 This invention relates to the synthetic resin cap and container with which the opening part of the container which accommodates contents, such as a drink, for example is mounted | worn.
　飲料物等の内容物を収容する容器の口部に装着されるキャップとして、一目で開封の有無を確認可能に構成されたものが広く用いられている。このようなキャップとして、容器口部の雄ねじに螺合する雌ねじが設けられたスカート壁を有するキャップ本体と、スカート壁の下部に環状弱化部を介して連結されたタンパーエビデンスバンドとを具備するものが知られている。 As a cap attached to the mouth of a container for storing contents such as beverages, a cap that can be confirmed at a glance whether or not it is opened is widely used. As such a cap, a cap body having a skirt wall provided with a female screw to be engaged with a male screw of a container mouth portion, and a tamper evidence band connected to a lower portion of the skirt wall via an annular weakening portion It has been known.
  上記従来のキャップでは、容器口部に装着された状態からの開封操作（最初の開栓操作）に伴い、タンパーエビデンスバンドの内周に設けられたフック（係止手段）が容器口部の外周に設けられた環状突起（係止あご部）に係止した後、タンパーエビデンスバンドとスカート壁とを画するミシン目状のスリット間に形成されたブリッジ（橋絡部）が破断され、キャップ本体とタンパーエビデンスバンドとが互いに分離される（特許文献１参照）。従って、環状弱化部を構成するブリッジの破断の有無を視認することにより、開封操作が行われたか否かを容易に確認することができる。 In the conventional cap described above, the hook (locking means) provided on the inner periphery of the tamper evidence band is attached to the outer periphery of the container mouth portion in accordance with the opening operation (first opening operation) from the state where it is attached to the container mouth portion. After locking the ring-shaped protrusion (locking jaw) provided on the bridge, the bridge (bridge) formed between the perforated slits that define the tamper-evidence band and the skirt wall is broken, and the cap body And the tamper evidence band are separated from each other (see Patent Document 1). Therefore, it is possible to easily confirm whether or not the opening operation has been performed by visually confirming whether or not the bridge constituting the annular weakened portion is broken.
特許第５５５４５７４号公報Japanese Patent No. 5554574
　しかし、特許文献１に記載されたキャップでは、タンパーエビデンスバンドの内周面におけるフックの上方に、環状突起の外径より小さい内径を有し、上下方向に０．３～０．７ｍｍ延びる内周面が円筒形状の嵌合下部を設けてあるため、容器口部に装着された状態のキャップを開封する際に、キャップ本体のがたつきを防止し、ひいてはブリッジが破断せずにキャップ本体が容器口部から外れる所謂すっぽ抜けをも防ぐことができ、タンパーエビデンス性が良好となる反面、開封に必要なトルクが増大し、開封が困難化する恐れがある。 However, the cap described in Patent Document 1 has an inner diameter that is smaller than the outer diameter of the annular protrusion above the hook on the inner circumferential surface of the tamper evidence band and extends 0.3 to 0.7 mm in the vertical direction. Since the surface is provided with a cylindrical fitting lower part, when opening the cap attached to the container mouth, the cap main body is prevented from rattling and the bridge main body is not broken. So-called slipping off from the container mouth can be prevented, and the tamper evidence property is improved. On the other hand, the torque required for opening increases, which may make opening difficult.
  本発明は上述の事柄に留意してなされたもので、その目的は、タンパーエビデンス性を良好としつつ、開栓操作性の向上をも図ることのできる合成樹脂製キャップ及び容器を提供することにある。 The present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to provide a cap and container made of a synthetic resin that can improve tapping evidence while improving tapping evidence. is there.
　上記目的を達成するために、本発明に係る合成樹脂製キャップは、容器口部の外周に形成された雄ねじに螺合する雌ねじが設けられたスカート壁と、該スカート壁の下部に環状弱化部を介して連結されたタンパーエビデンスバンドとを具備したキャップであって、前記タンパーエビデンスバンドの内周側に、前記容器口部の外周に設けられた環状突起に下方から係止可能なフックが周方向に間隔をおいて複数設けられ、また、前記タンパーエビデンスバンドの内周側において、前記フックの上方には該タンパーエビデンスバンドの内側に突出し、その突出量は前記フックよりも小さい突出部が連なり、さらに、前記タンパーエビデンスバンドの内周側において、前記突出部の上方には上側ほど内径が大きくなる傾斜部が設けられ、該傾斜部は、その上端から前記突出部の上端に向かって３５度～４５度の勾配で内径が小さくなるように延び、かつ、その軸方向の長さは０．２ｍｍ～０．８ｍｍである（請求項１）。 In order to achieve the above object, a synthetic resin cap according to the present invention comprises a skirt wall provided with a female screw that engages with a male screw formed on the outer periphery of a container mouth portion, and an annular weakening portion at a lower portion of the skirt wall. A tamper-evidence band connected via a hook, which is provided on the inner peripheral side of the tamper-evidence band with a hook that can be locked from below on an annular protrusion provided on the outer periphery of the container mouth. A plurality of protrusions are provided at intervals in the direction, and on the inner peripheral side of the tamper evidence band, the hook protrudes to the inside of the tamper evidence band above the hook, and the amount of protrusion is continuous with a protrusion smaller than the hook. Furthermore, on the inner peripheral side of the tamper evidence band, an inclined portion whose inner diameter increases toward the upper side is provided above the protruding portion, and the inclined portion The inner diameter extends from the upper end to the upper end of the protrusion with a gradient of 35 ° to 45 °, and the axial length is 0.2 mm to 0.8 mm. ).
　上記合成樹脂製キャップにおいて、前記環状突起の外径は、前記タンパーエビデンスバンドにおける前記傾斜部よりも上方の部位の内径よりも小さく、かつ、前記突出部の内径よりも大きく、前記容器口部に当該合成樹脂製キャップを密封した状態で、前記環状突起の外周面から下面にかけて位置するコーナー部の少なくとも一部が、前記傾斜部の上端から下端までの間の高さ位置に位置するように構成されていてもよい（請求項２）。 In the synthetic resin cap, the outer diameter of the annular protrusion is smaller than the inner diameter of the portion above the inclined portion in the tamper evidence band and larger than the inner diameter of the protruding portion, and is formed in the container mouth portion. In a state where the synthetic resin cap is sealed, at least part of the corner portion located from the outer peripheral surface to the lower surface of the annular protrusion is positioned at a height position between the upper end and the lower end of the inclined portion. (Claim 2).
　一方、上記目的を達成するために、本発明に係る容器は、請求項１または２に記載の合成樹脂製キャップを備えた（請求項３）。 On the other hand, in order to achieve the above object, a container according to the present invention includes the synthetic resin cap according to claim 1 or 2 (claim 3).
　本願発明では、タンパーエビデンス性を良好としつつ、開栓操作性の向上を図ることのできる合成樹脂製キャップ及び容器が得られる。 In the present invention, a cap and container made of a synthetic resin that can improve tapping evidence while improving tamper evidence are obtained.
　すなわち、本願の各請求項に係る発明の合成樹脂製キャップでは、所定の勾配及び軸方向長さを有する傾斜部により、開栓時のいわゆるすっぽ抜けを防止しつつ、開栓トルクの急激な増大等も防止することができる。 That is, in the synthetic resin cap of the invention according to each claim of the present application, the inclined portion having a predetermined gradient and axial length prevents the so-called slipping off at the time of opening, while the opening torque is abrupt. An increase or the like can also be prevented.
　請求項２に係る発明の合成樹脂製キャップでは、傾斜部が所定の勾配及び軸方向長さを有するようにしてあるので、密封状態において容器口部の環状突起のコーナー部をこの傾斜部に対応する位置に位置させるように製造するのが容易であり、許容される製造誤差が大きくなる等のメリットが得られる。 In the synthetic resin cap of the invention according to claim 2, since the inclined portion has a predetermined gradient and axial length, the corner portion of the annular projection of the container mouth portion corresponds to this inclined portion in a sealed state. Therefore, it is easy to manufacture so as to be positioned at a position where it is possible to obtain an advantage that an allowable manufacturing error increases.
本発明の一実施の形態に係る合成樹脂製キャップを備えた容器の要部の構成を概略的に示す説明図である。It is explanatory drawing which shows roughly the structure of the principal part of the container provided with the synthetic resin caps which concern on one embodiment of this invention. 前記合成樹脂製キャップの構成を概略的に示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the said synthetic resin cap roughly. 前記容器の要部の構成を概略的に示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the principal part of the said container roughly.
　本発明の実施の形態について図面を参照しながら以下に説明する。 Embodiments of the present invention will be described below with reference to the drawings.
　図１、図２に示す合成樹脂製キャップ（以下、キャップという）１は、例えばペットボトル等の容器の口部Ｍに装着されて使用されるものであり、コンプレッション成形又はインジェクション成形によって、ポリエチレンで一体的に成形されている。なお、キャップ１を形成する素材は、特に限定されるものではなく、本実施形態で用いたポリエチレンの他、ポリプロピレン等が好適に用いられる。なお、図１において、キャップ１の右半分の図示は省略してある。 A synthetic resin cap (hereinafter referred to as a cap) 1 shown in FIGS. 1 and 2 is used by being attached to a mouth M of a container such as a plastic bottle, for example, and is made of polyethylene by compression molding or injection molding. It is molded integrally. In addition, the raw material which forms the cap 1 is not specifically limited, Polypropylene etc. other than the polyethylene used by this embodiment are used suitably. In FIG. 1, the right half of the cap 1 is not shown.
　そして、キャップ１は、平面視において略円形状の天壁２と、この天壁２の外周部から下向きに延びる略円筒状のスカート壁３を有している。ここで、スカート壁３の外周面にはローレット溝４を、内周面には雌ねじ５を設けてあり、この雌ねじ５は容器口部Ｍの外周に形成された雄ねじＭ１に結合可能である（図２参照）。 The cap 1 has a substantially circular top wall 2 and a substantially cylindrical skirt wall 3 extending downward from the outer peripheral portion of the top wall 2 in plan view. Here, a knurled groove 4 is provided on the outer peripheral surface of the skirt wall 3, and a female screw 5 is provided on the inner peripheral surface. The female screw 5 can be coupled to a male screw M1 formed on the outer periphery of the container mouth portion M ( (See FIG. 2).
　また、キャップ１は、未開封（開栓が一度もされていないこと）を証明する機能を有するピルファープルーフキャップであり、スカート壁３の下部には、スカート壁３の全周にわたって延びる環状弱化部６を介してタンパーエビデンスバンド（以下、単に「バンド」という）７を連結してある。 The cap 1 is a pill fur-proof cap that has a function of proving that it has not been opened (that has never been opened), and the lower part of the skirt wall 3 has an annular weakening extending over the entire circumference of the skirt wall 3. A tamper evidence band (hereinafter, simply referred to as “band”) 7 is connected via a portion 6.
　すなわち、環状弱化部６は、スカート壁３とバンド７とを上下に画するものであり、スカート壁３及びバンド７の周方向に断続して延びる（ミシン目状の）スリットと、隣り合うスリットの間に存在するブリッジとで構成され、ブリッジは所定の力で引っ張られると破断する。 In other words, the annular weakening 6 defines the skirt wall 3 and the band 7 up and down, and includes a slit (perforated) that extends intermittently in the circumferential direction of the skirt wall 3 and the band 7 and an adjacent slit. And the bridge breaks when pulled with a predetermined force.
　そして、このバンド７の内周側には、内向きに突出し、内側への突出量が上側ほど増大するように構成されたフック８を、周方向に間隔をおいて複数（例えば５個）設けてある。各フック８は、キャップ１が容器口部に装着された状態で、容器口部Ｍの外周において雄ねじＭ１よりも下方に形成された環状突起（ビード部）９（図１参照）の略下側へ位置し、開封操作によって環状突起９に係止する。すなわち、フック８は、環状突起９に下方から係止可能に構成されている。 A plurality of hooks 8 (for example, five) are provided on the inner circumferential side of the band 7 so as to project inwardly and increase in the amount of inward projection toward the upper side at intervals in the circumferential direction. It is. Each hook 8 is substantially below the annular protrusion (bead portion) 9 (see FIG. 1) formed below the male screw M1 on the outer periphery of the container mouth portion M in a state where the cap 1 is attached to the container mouth portion. And is locked to the annular protrusion 9 by an opening operation. That is, the hook 8 is configured to be able to be locked to the annular protrusion 9 from below.
　また、図３に示すように、バンド７の内周側において、フック８の上方には、バンド７の内側に突出し、その突出量はフック９よりも小さい突出部１０が連なり、さらに、突出部１０の上方には上側ほど内径が大きくなる傾斜部１１が連なっている。 Further, as shown in FIG. 3, on the inner peripheral side of the band 7, a protrusion 10 protrudes inward of the band 7 above the hook 8, and the protrusion is smaller than the hook 9. Above 10, an inclined portion 11 whose inner diameter increases toward the upper side is connected.
　ここで、フック８の下端からバンド７の下端までの距離（軸方向の距離）ｈ１は１．６ｍｍであり、フック８の最小内径ｄ１は２６．５ｍｍである。また、フック８の上面は水平面に形成され、環状弱化部６までの距離（軸方向の距離）ｈ２は２．３ｍｍである。 Here, the distance (axial distance) h1 from the lower end of the hook 8 to the lower end of the band 7 is 1.6 mm, and the minimum inner diameter d1 of the hook 8 is 26.5 mm. The upper surface of the hook 8 is formed in a horizontal plane, and the distance (axial distance) h2 to the annular weakened portion 6 is 2.3 mm.
　突出部１０は、内周面が円筒状になるように構成され、バンド７における突出部１０及び傾斜部１１よりも上方の部位の内径ｄ２よりも小さい内径ｄ３を有し、環状突起９の外径は、ｄ２より小さく、ｄ３より大きい。本例では、ｄ２は２８．１０ｍｍであり、ｄ３は２７．５０ｍｍである。なお、バンド７における突出部１０及び傾斜部１１よりも上方の部位の肉厚ｔは例えば０．４５～０．６ｍｍとすることが考えられ、本例では０．５５ｍｍである。 The protruding portion 10 is configured such that the inner peripheral surface is cylindrical, has an inner diameter d3 that is smaller than the inner diameter d2 of the portion above the protruding portion 10 and the inclined portion 11 in the band 7, and is outside the annular protrusion 9. The diameter is smaller than d2 and larger than d3. In this example, d2 is 28.10 mm and d3 is 27.50 mm. Note that the thickness t of the portion of the band 7 above the protruding portion 10 and the inclined portion 11 may be 0.45 to 0.6 mm, for example, and is 0.55 mm in this example.
　また、本例では、容器口部Ｍにキャップ１を密封した状態において、突出部１０の上端から環状突起９までの距離（軸方向の距離）ｈ３は０．０８８ｍｍであり、突出部１０の軸方向の長さｈ４は０．２１ｍｍである。すなわち、ｈ３とｈ４の合計は０．２９８ｍｍであって０．３ｍｍ以下となるように構成してある。ｈ３とｈ４の合計が０．３ｍｍ超であると、開栓時にフック８が環状突起９に係合するまでの距離が長くなり過ぎ、タンパーエビデンス性に支障を来す恐れが高くなる。その一方、ｈ４があまりに小さいと、突出部１０によって得られる開栓の際のがたつき防止機能が損なわれ、また、ｈ３とｈ４の合計があまりに小さいと、環状突起９の下面の形状によっては密封状態で環状突起９がフック８に接触し、開栓トルクが増大するため、ｈ４は０．１ｍｍ以上とし、ｈ３とｈ４の合計は０．２ｍｍ以上とするのが好ましい。 In this example, in the state where the cap 1 is sealed in the container mouth M, the distance (axial distance) h3 from the upper end of the protrusion 10 to the annular protrusion 9 is 0.088 mm, and the axis of the protrusion 10 The length h4 in the direction is 0.21 mm. That is, the sum of h3 and h4 is 0.298 mm and is configured to be 0.3 mm or less. If the sum of h3 and h4 is more than 0.3 mm, the distance until the hook 8 engages with the annular protrusion 9 at the time of opening is too long, and there is a high possibility that the tamper evidence property will be hindered. On the other hand, if h4 is too small, the rattling prevention function at the time of opening obtained by the protruding portion 10 is impaired, and if the sum of h3 and h4 is too small, depending on the shape of the lower surface of the annular protrusion 9 Since the annular protrusion 9 comes into contact with the hook 8 in a sealed state and the opening torque is increased, h4 is preferably 0.1 mm or more, and the total of h3 and h4 is preferably 0.2 mm or more.
　上記構成からなるキャップ１は、容器口部Ｍに装着され未開封の密封状態では、環状突起９の外周面から下面にかけて位置するコーナー部９ａの少なくとも一部が、傾斜部１１の上端から下端までの間の高さ位置に位置するように構成されている（図３参照）。このとき、コーナー部９ａは、傾斜部１１に接触していても接触していなくてもよいが、少なくとも傾斜部１１以外の部位に環状突起９が接触しないようにするのが好ましい。このような接触が生じていると、開栓トルクが増大するためである。 When the cap 1 having the above-described configuration is attached to the container mouth portion M and is in an unopened sealed state, at least a part of the corner portion 9a located from the outer peripheral surface to the lower surface of the annular protrusion 9 extends from the upper end to the lower end of the inclined portion 11. It is comprised so that it may be located in the height position between (refer FIG. 3). At this time, the corner portion 9 a may or may not be in contact with the inclined portion 11, but it is preferable that the annular protrusion 9 does not contact at least a portion other than the inclined portion 11. This is because the opening torque increases when such contact occurs.
　そして、この図３に示す状態からキャップ１を開封方向に回転させると、容器口部Ｍに対してキャップ１が相対的に上昇し、やがてフック８が環状突起９に下方から係止する状態となる。そして、さらにキャップ１を開封方向に回転させることにより容器口部Ｍに装着されたキャップ１を開封する際、容器口部Ｍの環状突起９の外周面に対して突出部１０の内周面が当接し、これにより、キャップ１が斜めに持ち上がったりがたついたりすることが防止され、環状弱化部６が偏らずに略均一に破断するので、タンパーエビデンス性は良好となる。 When the cap 1 is rotated in the opening direction from the state shown in FIG. 3, the cap 1 is relatively raised with respect to the container mouth M, and the hook 8 is finally locked to the annular protrusion 9 from below. Become. When the cap 1 attached to the container mouth portion M is further opened by further rotating the cap 1 in the opening direction, the inner peripheral surface of the protruding portion 10 with respect to the outer peripheral surface of the annular protrusion 9 of the container mouth portion M is This prevents the cap 1 from being lifted or rattled diagonally, and the annular weakening portion 6 is broken almost uniformly without being biased, so that the tamper evidence property is improved.
　上記のようにキャップ１を構成する関係上、傾斜部１１は、その上端から突出部１０の上端に向かって３５度～４５度の勾配θで内径が小さくなるように延び、かつ、その軸方向の長さｈ５は０．２ｍｍ～０．８ｍｍであり、好ましくは０．２ｍｍ～０．４ｍｍである、とするのが好適である。勾配θが上記角度範囲外であったり、ｈ５が上記長さ範囲外であったりすると、密封状態で環状突起９を傾斜部１１に触れるか触れないかという好適な位置（傾斜部１１の上端から下端までの高さ位置）に位置させるのが困難化する等の不都合が生じる。 Due to the configuration of the cap 1 as described above, the inclined portion 11 extends from its upper end toward the upper end of the projecting portion 10 with a gradient θ of 35 ° to 45 ° so that its inner diameter decreases, and its axial direction The length h5 is 0.2 mm to 0.8 mm, preferably 0.2 mm to 0.4 mm. When the gradient θ is out of the above angle range or h5 is out of the above length range, a suitable position (from the upper end of the inclined portion 11) that the annular protrusion 9 is touched or not touched in the sealed state. Inconveniences such as difficulty in positioning at the height position to the lower end occur.
　詳述すると、まず、勾配θを３５度未満とすると、密封状態で傾斜部１１が環状突起９に接触していない場合、そのまま開栓開始後も殆ど両者が接触せずに環状突起９が突出部１０の外面に至ってしまう可能性が高くなり、逆に密封状態で傾斜部１１を環状突起９に確実に接触させようとすると、環状突起９がバンド７内面における傾斜部１１よりも上方の部位にまで接触してしまう恐れが高まる。一方、勾配θを４５度超とすると、開栓操作を開始後に開栓トルクが急激に高まり、開栓操作に支障を来す恐れが高まる。 More specifically, first, assuming that the gradient θ is less than 35 degrees, when the inclined portion 11 is not in contact with the annular protrusion 9 in a sealed state, the annular protrusion 9 protrudes with almost no contact even after the opening of the plug is started. If the inclined portion 11 is surely brought into contact with the annular protrusion 9 in a sealed state, the annular protrusion 9 is located above the inclined portion 11 on the inner surface of the band 7. There is an increased risk of contact. On the other hand, if the gradient θ is more than 45 degrees, the opening torque increases rapidly after the opening operation is started, and the possibility of hindering the opening operation increases.
　また、傾斜部１１の軸方向の長さｈ５を０．２ｍｍ未満とすると、密封状態で環状突起９を傾斜部１１の上端から下端までの高さ位置に位置させるのが難しくなる一方、０．８ｍｍ超とすると、フック８上面において突出部１０よりも内側に突出する部分の突出長さが不足し、フック８が環状突起９に良好に係止せず、開栓時にいわゆるすっぽ抜けが生じる恐れが高まる。 On the other hand, when the axial length h5 of the inclined portion 11 is less than 0.2 mm, it is difficult to position the annular protrusion 9 at a height position from the upper end to the lower end of the inclined portion 11 in a sealed state. If it exceeds 8 mm, the protruding length of the portion protruding inward from the protruding portion 10 on the upper surface of the hook 8 is insufficient, and the hook 8 does not lock well with the annular protrusion 9, and so-called slipping may occur when the plug is opened. Will increase.
　そして、本実施形態のキャップ１では、傾斜部１１が所定の勾配及び軸方向長さを有するようにしてあるので、密封状態において容器口部Ｍの環状突起９のコーナー部をこの傾斜部１１に対応する位置に位置させるように製造するのが容易であり、許容される製造誤差が大きくなる等のメリットが得られる。 And in the cap 1 of this embodiment, since the inclined part 11 has a predetermined gradient and an axial length, the corner part of the annular projection 9 of the container mouth part M in the sealed state is the inclined part 11. It is easy to manufacture so as to be located at the corresponding position, and there are advantages such as an increased manufacturing error.
　なお、本発明は、上記の実施の形態に何ら限定されず、本発明の要旨を逸脱しない範囲において種々に変形して実施し得ることは勿論である。例えば、以下のような変形例を挙げることができる。 It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified and implemented without departing from the gist of the present invention. For example, the following modifications can be given.
　上記実施の形態では、図２に示すように、各フック８に対応させて（各フック８の上方に相当する位置のみに）突出部１０及び傾斜部１１を設けているが、これに限らず、例えば突出部１０、傾斜部１１の少なくとも一方を、バンド７の周方向に連続して一周設けるようにしてもよい。 In the above embodiment, as shown in FIG. 2, the protruding portion 10 and the inclined portion 11 are provided corresponding to each hook 8 (only at a position corresponding to the upper side of each hook 8). For example, at least one of the protruding portion 10 and the inclined portion 11 may be continuously provided in the circumferential direction of the band 7.
　また、上記実施の形態では、図２に示すように、突出部１０、傾斜部１１は、各フック８の上方において各フック８の左端から右端まではバンド７の周方向に連続しているが、何れか一方又は両方を、各フック８の上方において各フック８の左端から右端までの間でバンド７の周方向に断続するように設けてもよい。 Moreover, in the said embodiment, as shown in FIG. 2, although the protrusion part 10 and the inclination part 11 are continuous in the circumferential direction of the band 7 from the left end of each hook 8 above each hook 8 to the right end. Any one or both may be provided so as to be intermittent in the circumferential direction of the band 7 between the left end and the right end of each hook 8 above each hook 8.
　各傾斜部１１の勾配θは、画一化されていてもよいし、ばらつきをもたせてあってもよく、例えば勾配θが３８度の傾斜部１１を三つ、勾配θが４３度の傾斜部１１を二つ設ける、といったようなことも可能である。 The gradient θ of each inclined portion 11 may be equalized or may vary, for example, three inclined portions 11 having a gradient θ of 38 degrees and an inclined portion having a gradient θ of 43 degrees. It is also possible to provide two 11.
　なお、上記変形例どうしを適宜組み合わせてもよいことはいうまでもない。 Needless to say, the above modifications may be combined as appropriate.
　１　　合成樹脂製キャップ
　２　　天壁
　３　　スカート壁
　４　　ローレット溝
　５　　雌ねじ
　６　　環状弱化部
　７　　タンパーエビデンスバンド
　８　　フック
　９　　環状突起
　９ａ　コーナー部
１０　　突出部
１１　　傾斜部
　ｄ１　フックの最小内径
　ｄ２　バンドの上部の内径
　ｄ３　突出部の内径
　ｈ１　フックの下端からバンドの下端までの距離
　ｈ２　フックの上面から環状弱化部までの距離
　ｈ３　突出部の上端から環状突起までの距離
　ｈ４　突出部の軸方向長さ
　ｈ５　傾斜部の軸方向長さ
　Ｍ　　容器口部
　Ｍ１　雄ねじ
　ｔ　　バンドの上部の肉厚
　θ　　勾配

  DESCRIPTION OF SYMBOLS 1 Synthetic resin cap 2 Top wall 3 Skirt wall 4 Knurled groove 5 Female thread 6 Annular weakened part 7 Tamper evidence band 8 Hook 9 Annular protrusion 9a Corner part 10 Protruding part 11 Inclined part d1 Hook inner diameter d2 Band inner diameter d3 Inner diameter of the projecting portion h1 Distance from the lower end of the hook to the lower end of the band h2 Distance from the upper surface of the hook to the annular weakened portion h3 Distance from the upper end of the projecting portion to the annular projection h4 Axial length of the projecting portion h5 Shaft of the inclined portion Direction length M Container mouth M1 Male thread t Thickness of band at upper part of band θ Gradient

Claims (3)

  1. 　容器口部の外周に形成された雄ねじに螺合する雌ねじが設けられたスカート壁と、該スカート壁の下部に環状弱化部を介して連結されたタンパーエビデンスバンドとを具備したキャップであって、
    　前記タンパーエビデンスバンドの内周側に、前記容器口部の外周に設けられた環状突起に下方から係止可能なフックが周方向に間隔をおいて複数設けられ、
    　また、前記タンパーエビデンスバンドの内周側において、前記フックの上方には該タンパーエビデンスバンドの内側に突出し、その突出量は前記フックよりも小さい突出部が連なり、
    　さらに、前記タンパーエビデンスバンドの内周側において、前記突出部の上方には上側ほど内径が大きくなる傾斜部が設けられ、該傾斜部は、その上端から前記突出部の上端に向かって３５度～４５度の勾配で内径が小さくなるように延び、かつ、その軸方向の長さは０．２ｍｍ～０．８ｍｍであることを特徴とする合成樹脂製キャップ。     A cap provided with a skirt wall provided with a female screw that engages with a male screw formed on the outer periphery of the container mouth, and a tamper evidence band connected to the lower part of the skirt wall via an annular weakening part,
    On the inner peripheral side of the tamper evidence band, a plurality of hooks that can be locked from below on annular protrusions provided on the outer periphery of the container mouth portion are provided at intervals in the circumferential direction,
    Further, on the inner peripheral side of the tamper evidence band, the hook protrudes inward of the tamper evidence band above the hook, and the protruding amount is continuous with a protruding portion smaller than the hook,
    Further, on the inner peripheral side of the tamper evidence band, an inclined portion whose inner diameter increases toward the upper side is provided above the protruding portion, and the inclined portion extends from the upper end to the upper end of the protruding portion from 35 degrees to A synthetic resin cap characterized in that the inner diameter is reduced with a 45 degree gradient and the axial length is 0.2 mm to 0.8 mm.
  2. 　前記環状突起の外径は、前記タンパーエビデンスバンドにおける前記傾斜部よりも上方の部位の内径よりも小さく、かつ、前記突出部の内径よりも大きく、
    　前記容器口部に当該合成樹脂製キャップを密封した状態で、前記環状突起の外周面から下面にかけて位置するコーナー部の少なくとも一部が、前記傾斜部の上端から下端までの間の高さ位置に位置するように構成されている請求項１に記載の合成樹脂製キャップ。     The outer diameter of the annular protrusion is smaller than the inner diameter of the portion above the inclined portion in the tamper evidence band, and larger than the inner diameter of the protruding portion,
    With the synthetic resin cap sealed in the container mouth, at least a part of the corner portion located from the outer peripheral surface to the lower surface of the annular protrusion is at a height position between the upper end and the lower end of the inclined portion. The synthetic resin cap according to claim 1, which is configured to be positioned.
  3. 　請求項１または２に記載の合成樹脂製キャップを備えた容器。

          A container provided with the synthetic resin cap according to claim 1.

PCT/JP2017/009640 2017-03-10 2017-03-10 Synthetic resin cap and container WO2018163393A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2017/009640 WO2018163393A1 (en) 2017-03-10 2017-03-10 Synthetic resin cap and container
JP2017515270A JP6180687B1 (en) 2017-03-10 2017-03-10 Synthetic resin caps and containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/009640 WO2018163393A1 (en) 2017-03-10 2017-03-10 Synthetic resin cap and container

Publications (1)

Publication Number Publication Date
WO2018163393A1 true WO2018163393A1 (en) 2018-09-13

Family

ID=59604776

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/009640 WO2018163393A1 (en) 2017-03-10 2017-03-10 Synthetic resin cap and container

Country Status (2)

Country Link
JP (1) JP6180687B1 (en)
WO (1) WO2018163393A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021050007A (en) * 2019-09-24 2021-04-01 日本山村硝子株式会社 Synthetic resin cap and container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7005267B2 (en) * 2017-10-16 2022-01-21 日本山村硝子株式会社 Synthetic resin caps and containers
JP7117982B2 (en) * 2018-11-27 2022-08-15 日本山村硝子株式会社 Synthetic resin cap

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000109105A (en) * 1998-10-01 2000-04-18 Japan Crown Cork Co Ltd Synthetic resin container lid
JP2015182803A (en) * 2014-03-25 2015-10-22 日本クロージャー株式会社 synthetic resin container lid and container
JP2017036081A (en) * 2015-08-12 2017-02-16 株式会社Ｃｓｉジャパン Synthetic resin cap, closing device, and closing device containing beverage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000109105A (en) * 1998-10-01 2000-04-18 Japan Crown Cork Co Ltd Synthetic resin container lid
JP2015182803A (en) * 2014-03-25 2015-10-22 日本クロージャー株式会社 synthetic resin container lid and container
JP2017036081A (en) * 2015-08-12 2017-02-16 株式会社Ｃｓｉジャパン Synthetic resin cap, closing device, and closing device containing beverage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021050007A (en) * 2019-09-24 2021-04-01 日本山村硝子株式会社 Synthetic resin cap and container
JP7458728B2 (en) 2019-09-24 2024-04-01 日本山村硝子株式会社 Synthetic resin caps and containers

Also Published As

Publication number Publication date
JP6180687B1 (en) 2017-08-16
JPWO2018163393A1 (en) 2019-03-22

Similar Documents

Publication Publication Date Title
JP6235005B2 (en) Closure with mounting guide
JP6094078B2 (en) Spout
WO2017061001A1 (en) Synthetic resin cap
WO2018163393A1 (en) Synthetic resin cap and container
JP6204621B1 (en) Synthetic resin caps and containers
WO2018047711A1 (en) Plastic cap
WO2020179608A1 (en) Cap
JP6564141B2 (en) Plastic cap
JP7117981B2 (en) Synthetic resin cap
JP6539011B1 (en) Synthetic resin cap and container
JP7005267B2 (en) Synthetic resin caps and containers
JP7409813B2 (en) Synthetic resin cap
WO2017043200A1 (en) Synthetic resin cap
JP4906560B2 (en) Plastic container lid
JP7037915B2 (en) Synthetic resin caps and containers
CN112566852B (en) Synthetic resin end cap
JP7117982B2 (en) Synthetic resin cap
WO2017029707A1 (en) Synthetic resin cap
WO2021060252A1 (en) Cap
JP2022053888A (en) Synthetic resin cap
JP6306806B1 (en) Synthetic resin caps and containers
JP4388758B2 (en) Capping cap
JP2021050006A (en) Synthetic resin cap
WO2020054259A1 (en) Synthetic resin cap
JP2019069794A (en) Synthetic resin cap and container

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2017515270

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17899360

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17899360

Country of ref document: EP

Kind code of ref document: A1