JPH0858818A - Cap having tamper evident mechanism - Google Patents

Cap having tamper evident mechanism

Info

Publication number
JPH0858818A
JPH0858818A JP6202305A JP20230594A JPH0858818A JP H0858818 A JPH0858818 A JP H0858818A JP 6202305 A JP6202305 A JP 6202305A JP 20230594 A JP20230594 A JP 20230594A JP H0858818 A JPH0858818 A JP H0858818A
Authority
JP
Japan
Prior art keywords
cap
protrusion
cap body
band
tamper
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP6202305A
Other languages
Japanese (ja)
Other versions
JP3574474B2 (en
Inventor
Osamu Ishii
修 石井
Shunji Yamada
俊次 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Closures Co Ltd
Original Assignee
Japan Crown Cork Co Ltd
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 Japan Crown Cork Co Ltd filed Critical Japan Crown Cork Co Ltd
Priority to JP20230594A priority Critical patent/JP3574474B2/en
Publication of JPH0858818A publication Critical patent/JPH0858818A/en
Application granted granted Critical
Publication of JP3574474B2 publication Critical patent/JP3574474B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, 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
    • B65D41/32Caps 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
    • B65D41/34Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3404Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element
    • B65D41/3409Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element the tamper element being integrally connected to the closure by means of bridges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

PURPOSE: To prevent break of a bridging part at the time of capping and easily remove a cap from a mold at the time of molding by a method wherein a projection of a cap body and a projection of a TE band are engaged with each other when the TE cap is closed. CONSTITUTION: A cap body 4 consists of a top plate part 2 and a skirt part 3 vertically provided downward from the peripheral edge thereof. A tamper evident (TE) band 6 having a fastening projection piece engaging with a bore part of a container at the inner peripheral surface thereof is connected to the cap body 4 through a bridging part 5 at the lower part of the skirt part 3. In this TE cap 1, the cap body 4 is provided with a projection 11 on the lower outer peripheral surface of the skirt part 3. On the other hand, the TE band 6 has an inner diameter set to be larger than the outer diameter of the cap body 4 and is provided with a projection 10 on the upper inner peripheral surface thereof. The projection 11 of the cap body 4 and the projection 10 of the TE band 6 are engaged with each other when the TE cap 1 is closed, whereby the break of the bridging part 5 at the time of capping is prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、開封明示機構を備えた
キャップに関し、より詳細には、簡単な構造で成形が容
易であると共に、容器の密封が解除される前に確実に開
封されたことが明示されるキャップに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap provided with an unsealing mechanism, and more particularly, to a cap having a simple structure, easy to mold, and securely opened before the container is unsealed. Regarding the cap clearly stated.

【0002】[0002]

【従来の技術】従来より、容器を密封したキャップが一
旦開封されたことを明示する開封明示機構を備えたキャ
ップ、所謂タンパーエビデントキャップ(以下、TEキ
ャップという)が広く採用されている。このTEキャッ
プにおいては、頂板部と頂板部周縁から垂下したスカー
ト部とスカート部下端から弱化線を介して接続した下方
周状バンドとスカート部内面に設けたメネジとを備えた
キャップを、首部外周にオネジ及び突起を設けた容器口
部に差込み、開封に際して下方周状バンド内面の突起が
容器口部の突起と係合して弱化線の破断が行われるよう
にしたものが知られている。このようなTEキャップに
おいては、TEバンドはキャップ本体との間に設けられ
た橋絡部のみによってキャップ本体と連結されており、
キャップを容器口部に閉蓋するとき容器口部の突出部を
TEバンドが乗り越える際に橋絡部が破断されてしまう
ことがあった。
2. Description of the Related Art Conventionally, a so-called tamper-evidence cap (hereinafter, referred to as a TE cap), which is provided with an unsealing clarification mechanism that clarifies that a cap that seals a container has been once unsealed, has been widely adopted. In this TE cap, a cap having a top plate portion, a skirt portion hanging down from the peripheral edge of the top plate portion, a lower circumferential band connected from the lower end of the skirt portion through a weakening line, and a female screw provided on the inner surface of the skirt portion, is attached to the neck outer circumference. It is known that a male thread and a protrusion are inserted into the container mouth so that the protrusion on the inner surface of the lower circumferential band engages with the protrusion on the container mouth at the time of opening to break the weakening line. In such a TE cap, the TE band is connected to the cap body only by the bridging portion provided between the TE band and the TE band,
When the cap was closed on the container mouth, the bridge portion was sometimes broken when the TE band crossed over the projecting portion of the container mouth.

【0003】[0003]

【発明が解決しようとする課題】このような問題を解決
するために、開封時にTEバンドの内面が容器口部の側
面と係合して開封明示機能を発揮するキャップにおい
て、キャップ本体下端とTEバンド上端の間にストッパ
ーを設け、閉蓋時にキャップ本体のみが回転することを
防止したものも知られている(実開昭51−54056
号公報)。一般にこのようなキャップにおいても、その
成形は、成形型内に樹脂を射出して、最終的に型内から
取出すわけであるが、上記のように閉蓋時のTEバンド
の破断を防止するためにTEバンドとキャップ本体の間
に形成されるスリットの間に突起を設けると、キャップ
成形の際の型抜きが難しく、割型を使用しなければなら
ないなど成形効率が悪いという問題があった。
In order to solve such a problem, in the cap in which the inner surface of the TE band engages with the side surface of the container mouth portion at the time of opening, the lower end of the cap body and the TE are provided. It is also known that a stopper is provided between the upper ends of the bands to prevent only the cap main body from rotating when the lid is closed (Actually No. 51-54056).
Issue). In general, even in such a cap, the molding is performed by injecting the resin into the molding die and finally taking it out from the mold. In order to prevent the TE band from being broken when the lid is closed as described above. However, if a protrusion is provided between the slit formed between the TE band and the cap body, it is difficult to remove the mold at the time of molding the cap, and there is a problem that the molding efficiency is poor such that a split mold must be used.

【0004】一方、キャップ成形の際の型抜きを容易に
し、成形効率を高める見地から、TEバンドをキャップ
本体の外径よりも大きくしたものも知られているが(特
公昭60−50664号公報)、このような場合には、
キャップ本体とTEバンドの間にストッパーを設けるこ
とは行われておらず、閉蓋時の橋絡部の破断を有効に防
止したものが望まれている。
On the other hand, a TE band having a larger diameter than the outer diameter of the cap body is also known from the standpoint of facilitating the die removal at the time of cap molding and enhancing the molding efficiency (Japanese Patent Publication No. 50-50664). ), In this case,
No stopper has been provided between the cap body and the TE band, and what effectively prevents breakage of the bridge portion when the lid is closed is desired.

【0005】従って、本発明の目的は、簡単な構造で成
形時のキャップの型抜きが容易であると共に、キャップ
を容器に打栓する際に橋絡部が破断されることがないT
Eキャップを提供するにある。
Therefore, an object of the present invention is that the cap can be easily removed from the mold at the time of molding with a simple structure, and the bridge portion is not broken when the cap is plugged into the container.
To provide an E-cap.

【0006】[0006]

【課題を解決するための手段】本発明によれば、頂板部
と頂板部周縁から垂下するスカート部から成るキャップ
本体と、スカート部下部から橋絡部を介してキャップ本
体に連結された、内周面に容器口頚部と係合する係止突
片を有するタンパーエビデントバンドとから成るキャッ
プにおいて、キャップ本体にはスカート部下部外周面に
突起が設けられており、タンパーエビデントバンドは、
キャップ本体の外径よりも大きな内径を有し、且つその
上部内周面には突起が設けられており、キャップ本体の
突起とタンパーエビデントバンドの突起が互いに係合し
て、閉蓋時の橋絡部の破断を防止することを特徴とする
開封明示機構を有するキャップが提供される。本発明に
おいては、キャップ本体とTEバンドの間に設けられる
係合を、周方向、または周方向及び軸線方向の両方で係
合可能な係合部とすることが特に好ましい。
According to the present invention, a cap body including a top plate portion and a skirt portion hanging down from the periphery of the top plate portion, and an inner portion connected to the cap body from a lower portion of the skirt portion via a bridging portion, In a cap consisting of a tamper-evidence band having locking projections that engage with the neck and neck of the container on the peripheral surface, a protrusion is provided on the lower outer peripheral surface of the skirt portion of the cap body, and the tamper-evidence band is
It has an inner diameter larger than the outer diameter of the cap body, and a protrusion is provided on the upper inner peripheral surface of the cap body.The protrusion of the cap body and the protrusion of the tamper-evidence band engage with each other, and There is provided a cap having a tamper evident mechanism characterized by preventing breakage of a bridge portion. In the present invention, it is particularly preferable that the engagement provided between the cap body and the TE band is an engaging portion that can be engaged in the circumferential direction or in both the circumferential direction and the axial direction.

【0007】[0007]

【作用】本発明のTEキャップにおいては、TEバンド
の内径がキャップ本体の外径よりも大径であり、且つキ
ャップ本体スカート部下部外周面とTEバンド上部内周
面との間に橋絡部及びストッパーとなる係合部が形成さ
れているため、アンダーカットのような部分がなく簡単
な構造で、成形時の型抜きを容易に行うことができるの
である。一般に閉蓋操作では、容器口部にキャップを回
転させながらねじ込んでいくため、この際TEバンドは
容器口部のねじ山等の突起を乗り越える必要があり、キ
ャップ本体の動きに追従して回転しずらい。このため、
キャップ本体の動きを阻止するように、すなわちTEバ
ンドをキャップ本体の動きに追従させるように、キャッ
プ本体及びTEバンドにそれぞれ設けられた係合突起を
周方向で係合させ、橋絡部が破断されるようなキャップ
本体とTEバンドとの相対的な動きを阻止することがで
きるのである。また、キャップ本体とTEバンドの直径
が異なると、TEバンドが容器口部の突起等を乗り越え
られず、キャップ本体のみがTEバンド側に下りて、橋
絡部が破断してしまうことも考えられるが、本発明によ
れば、係合突起の形状を変化させることにより、周方向
の一方のみならず、周方向及び軸線方向の両方向で係止
されて更に橋絡部の破断を確実に防止することができる
のである。
In the TE cap of the present invention, the inner diameter of the TE band is larger than the outer diameter of the cap body, and the bridge portion is provided between the lower outer peripheral surface of the cap body skirt portion and the upper inner peripheral surface of the TE band. Further, since the engaging portion serving as the stopper is formed, the die can be easily removed at the time of molding with a simple structure without a portion such as undercut. Generally, in the lid closing operation, the cap is screwed into the container mouth while rotating, so the TE band needs to get over the protrusions such as the threads of the container mouth at this time, and it rotates following the movement of the cap body. Difficult. For this reason,
In order to prevent the movement of the cap body, that is, the TE band to follow the movement of the cap body, the engagement protrusions provided on the cap body and the TE band are engaged in the circumferential direction, and the bridging portion is broken. The relative movement between the cap body and the TE band as described above can be prevented. Further, if the cap body and the TE band have different diameters, it is possible that the TE band cannot get over the protrusions of the container mouth and only the cap body goes down to the TE band side, and the bridging part is broken. However, according to the present invention, by changing the shape of the engaging projection, it is locked not only in one of the circumferential directions but also in both the circumferential direction and the axial direction to further reliably prevent the bridging portion from breaking. It is possible.

【0008】[0008]

【実施例】以下、本発明を添付図面に基づいて詳細に説
明する。図1は、本発明のTEキャップの縦断面図を示
す図であり、図2は、図1のX−X線方向からの平面図
である。全体を1で示す本発明のTEキャップは、概略
的に、頂板部2及びスカート部3から成るキャップ本体
4と、このキャップ本体4と橋絡部5で連結されたTE
バンド6から成っている。キャップ本体4のスカート部
3は、内面には螺子部7が設けられ、外面には把持旋回
がしやすいようにローレット溝8が形成されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a diagram showing a vertical cross-sectional view of a TE cap of the present invention, and FIG. 2 is a plan view taken along the line XX of FIG. The TE cap of the present invention, which is designated by 1 in its entirety, schematically includes a cap body 4 composed of a top plate portion 2 and a skirt portion 3, and a TE body connected to the cap body 4 by a bridging portion 5.
It consists of band 6. The skirt portion 3 of the cap body 4 is provided with a screw portion 7 on the inner surface and a knurled groove 8 on the outer surface so as to facilitate gripping and turning.

【0009】TEバンド6の内径は、キャップ本体4の
外径よりも大径であり、その上端においてスカート部3
の下部と連結する複数の橋絡部5が設けられている。ま
たTEバンドの内周面には容器口部に設けられたラチェ
ット爪(図示せず)と係合する、ラチェット片9が一定
間隔で複数個設けられている。TEバンド上部内周面の
ラチェット片9,9・・の間には係合突起10が、キャ
ップ本体スカート部3の下部外周面には係合突起11が
それぞれ設けられている。これらの係合突起10及び1
1は、キャップ本体のみが回転したとき互いに係合し
て、キャップ本体とTEバンドとの相対的な回転を止め
るストッパーとしての役割を有している。
The inner diameter of the TE band 6 is larger than the outer diameter of the cap body 4, and the skirt portion 3 is formed at the upper end thereof.
A plurality of bridging portions 5 that are connected to the lower part of the. A plurality of ratchet pieces 9 that engage with ratchet pawls (not shown) provided at the mouth of the container are provided at regular intervals on the inner peripheral surface of the TE band. An engaging protrusion 10 is provided between the ratchet pieces 9, 9 on the upper inner peripheral surface of the TE band, and an engaging protrusion 11 is provided on the lower outer peripheral surface of the cap body skirt portion 3. These engaging projections 10 and 1
1 serves as a stopper that engages with each other when only the cap body rotates and stops relative rotation between the cap body and the TE band.

【0010】係合突起は、消費者が開栓する時以外に、
キャップ本体がTEバンドとは別に単独で回転してしま
うことを阻止するものであるので、キャップの周方向に
係合すればその目的を達成することができるが、より好
適には、キャップ本体のみが下方、すなわち軸線方向に
移動することによって橋絡部が破断することをも防止す
るために、周方向のみならず軸線方向にも係合している
ことが好ましい。図2に示したTEキャップの係合突起
を拡大して示す図3において、係合突起10は、TEバ
ンドの上端部から内面に突出した直方体の突起となって
いる。これに対し係合突起11は、係合突起10とほぼ
同じ形状、同じ高さの直方体の突起であるが、上面が、
係合突起11の横断面よりも大面積で、少なくとも係合
突起10と係合する位置側に突出する平板状となってい
る。係合突起11が係合突起10と係合したときに、こ
の上面平板の突出部12が係合突起10の上面を覆うよ
うになっている。これにより、TEバンド側の係合突起
10は、係合突起11の側面により周方向への回転が、
また係合突起11の上面平板の突出部12により軸線方
向への動きが制御されて、閉蓋時にキャップ本体のみが
動くことがなく、橋絡部9が破断してしまうことがない
のである。
The engaging protrusions are provided except when the consumer opens the plug.
Since the cap body is prevented from rotating independently of the TE band, the purpose can be achieved by engaging in the circumferential direction of the cap, but more preferably, only the cap body is provided. Is also preferably engaged not only in the circumferential direction but also in the axial direction in order to prevent the bridging portion from being broken by moving downward in the axial direction. In FIG. 3, which shows the engaging protrusion of the TE cap shown in FIG. 2 in an enlarged manner, the engaging protrusion 10 is a rectangular parallelepiped protrusion protruding from the upper end portion of the TE band to the inner surface. On the other hand, the engagement protrusion 11 is a rectangular parallelepiped protrusion having substantially the same shape and the same height as the engagement protrusion 10, but the upper surface is
The engaging projection 11 has a larger area than the cross section, and has a flat plate shape that projects at least toward the position where it engages with the engaging projection 10. When the engagement protrusion 11 engages with the engagement protrusion 10, the protrusion 12 of the upper flat plate covers the upper surface of the engagement protrusion 10. As a result, the engagement protrusion 10 on the TE band side is rotated in the circumferential direction by the side surface of the engagement protrusion 11.
Moreover, the movement of the engaging projection 11 in the axial direction is controlled by the projecting portion 12 of the upper plate, so that only the cap body does not move when the lid is closed, and the bridging portion 9 does not break.

【0011】図4は、本発明のTEキャップにおける他
の係合突起の一例を示した例である。図4(A)は、係
合突起の縦断面を示す図である。TEバンド側に設けら
れる係合突起10は、図に示す通り係合面13が軸線か
らαだけ傾いて、上面が下面よりも小面積となってい
る。一方係合突起11は、上面が下面よりも大面積とな
って、係合面14が軸線からαだけ係合突起10側に傾
いている。これにより、係合突起10と係合突起11は
係合面でぴったりと合致し、周方向の回転はもちろん、
係合突起11が上面にいくにつれて断面積が大きくなっ
ていくことから、軸線方向への移動も制御することが可
能となり、キャップ本体のみが移動して橋絡部が破断す
ることを有効に防止することができるのである。
FIG. 4 is an example showing another example of the engaging projection in the TE cap of the present invention. FIG. 4A is a view showing a vertical cross section of the engagement protrusion. As shown in the figure, the engaging projection 10 provided on the TE band side has an engaging surface 13 inclined from the axis by α, and the upper surface has a smaller area than the lower surface. On the other hand, the upper surface of the engaging projection 11 has a larger area than that of the lower surface, and the engaging surface 14 is inclined from the axis toward the engaging projection 10 by α. As a result, the engaging projections 10 and 11 are exactly aligned with each other on the engaging surface, and the rotation in the circumferential direction is of course achieved.
Since the cross-sectional area of the engagement projection 11 increases toward the upper surface, it is possible to control the movement in the axial direction as well, and effectively prevent only the cap body from moving and the bridging portion from breaking. You can do it.

【0012】この場合においては、αの角度は大きいほ
ど係合突起同士の係合が十分となって橋絡部の破断防止
の見地からは望ましいが、成形時の型抜きのしやすさの
見地から、αは5乃至15度の範囲にあり、且つ係合突
起11の係合面14の上辺が、係合突起10の下辺より
も係合突起10側に位置しないことが好ましい。係合突
起は、少なくとも2つ以上設けることが橋絡部の破断を
有効に防止する上で好ましい。
In this case, the larger the angle α is, the more the engagement between the engagement projections is sufficient, which is desirable from the viewpoint of preventing breakage of the bridging portion, but from the viewpoint of ease of die cutting during molding. Therefore, it is preferable that α is in the range of 5 to 15 degrees, and that the upper side of the engaging surface 14 of the engaging protrusion 11 is not located closer to the engaging protrusion 10 side than the lower side of the engaging protrusion 10. It is preferable to provide at least two engaging protrusions in order to effectively prevent breakage of the bridging portion.

【0013】係止突片を複数個のラチェット片から構成
する場合には、ラチェット片を図に示したように容器口
部のラチェット爪と周方向に係合させることにより、開
蓋による橋絡部の破断が、容器口部先端とキャップ頂板
部内面の間の密封部の破壊より先に行われるため、TE
バンドはキャップ本体から離脱していないのに、容器の
密封性が失われているというようなことがなく好まし
い。またラチェット片の形状は、図に示すような舌片形
状のものに限定されず、先端に行くに従って縦断面積が
減少する突起のように、従来公知の形状をすべて採用で
きる。
When the locking projection is composed of a plurality of ratchet pieces, the ratchet pieces are circumferentially engaged with the ratchet pawls of the container mouth portion as shown in the figure, so that the bridging by opening the lid. Since the breakage of the part occurs before the breakage of the sealed part between the tip of the container mouth and the inner surface of the cap top plate, TE
Although the band is not separated from the cap body, the sealing property of the container is not lost, which is preferable. Further, the shape of the ratchet piece is not limited to the shape of the tongue piece as shown in the drawing, and any conventionally known shape can be adopted, such as a projection whose longitudinal cross-sectional area decreases toward the tip.

【0014】本発明のTEキャップは、各種プラスチッ
ク、例えば高密度ポリエチレン、ポリプロピレン、熱可
塑性ポリエステル、ポリアミド、スチレン系樹脂、AB
S樹脂等から成ることができ、容器に密封性を与えるた
めに、キャップ本体頂板部内面に、オレフィン系樹脂や
塩化ビニルプラスチゾル等から形成される従来公知のラ
イナーが使用されている。
The TE cap of the present invention comprises various plastics such as high density polyethylene, polypropylene, thermoplastic polyester, polyamide, styrene resin, AB.
A conventional liner made of olefin resin, vinyl chloride plastisol, or the like is used on the inner surface of the top plate of the cap body, which may be made of S resin or the like, in order to provide hermeticity to the container.

【0015】[0015]

【発明の効果】本発明によれば、TEバンドがキャップ
本体の外径よりも大きな内径を有し、TEバンド内周面
上部及びキャップ本体スカート部外周面下部に係合突起
を設けることにより、閉蓋時に橋絡部が破断することを
有効に防止することができる。また、簡単な構造である
ため、型抜きが容易で成形性に優れている。
According to the present invention, the TE band has an inner diameter larger than the outer diameter of the cap body, and by providing the engaging protrusions on the upper inner surface of the TE band and the lower outer surface of the cap body skirt, It is possible to effectively prevent the bridge portion from breaking when the lid is closed. Further, since it has a simple structure, it can be easily die-cut and has excellent moldability.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のTEキャップの一例の縦断面図であ
る。
FIG. 1 is a vertical sectional view of an example of a TE cap of the present invention.

【図2】図1に示すTEキャップをX−X線方向から見
た平面図である。
FIG. 2 is a plan view of the TE cap shown in FIG. 1 seen from the direction of the line XX.

【図3】図2に示すTEキャップの係合部を拡大して示
す要部斜視図である。
FIG. 3 is an enlarged perspective view of an essential part of the engaging portion of the TE cap shown in FIG.

【図4】本発明のTEキャップの係合突起の他の一例を
拡大して示す図である。
FIG. 4 is an enlarged view showing another example of the engagement protrusion of the TE cap of the present invention.

【符合の説明】[Description of sign]

1 TEキャップ 2 頂板部 3 スカート部 4 キャップ本体 5 橋絡部 6 TEバンド 9 ラチェット片 10 TEバンド側係合突起 11 キャップ本体側係合突起 1 TE cap 2 Top plate part 3 Skirt part 4 Cap body 5 Bridging part 6 TE band 9 Ratchet piece 10 TE band side engagement protrusion 11 Cap body side engagement protrusion

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 頂板部と頂板部周縁から垂下するスカー
ト部から成るキャップ本体と、スカート部下部から橋絡
部を介してキャップ本体に連結された、内周面に容器口
頚部と係合する係止突片を有するタンパーエビデントバ
ンドとから成るキャップにおいて、 キャップ本体にはスカート部下部外周面に突起が設けら
れており、タンパーエビデントバンドは、キャップ本体
の外径よりも大きな内径を有し、その上部内周面には突
起が設けられており、キャップ本体の突起とタンパーエ
ビデントバンドの突起がキャップの閉蓋時に互いに係合
して、閉蓋時の橋絡部の破断を防止することを特徴とす
る開封明示機構を有するキャップ。
1. A cap body composed of a top plate portion and a skirt portion hanging down from the periphery of the top plate portion, and an inner peripheral surface connected to the cap body from a lower portion of the skirt portion through a bridging portion to engage a container mouth neck portion. In a cap consisting of a tamper-evidence band having locking projections, the cap body has a protrusion on the outer peripheral surface of the lower portion of the skirt, and the tamper-evidence band has an inner diameter larger than the outer diameter of the cap body. However, a protrusion is provided on the inner surface of the upper part, and the protrusion of the cap body and the protrusion of the tamper-evidence band engage with each other when the cap is closed, preventing the bridge portion from breaking when the cap is closed. A cap having a tamper evident mechanism.
【請求項2】 前記係止突片が容器口頚部に設けられた
複数のラチェット爪と係合するラチェット片から成る請
求項1記載のキャップ。
2. The cap according to claim 1, wherein the locking projection comprises a ratchet piece that engages with a plurality of ratchet pawls provided on the neck of the container.
【請求項3】 前記タンパーエビデントバンドの突起及
びキャップ本体スカート部の突起が、キャップを容器口
頚部に閉蓋する際に周方向に係合する請求項1又は2記
載のキャップ。
3. The cap according to claim 1, wherein the protrusion of the tamper-evidence band and the protrusion of the cap body skirt portion engage in the circumferential direction when the cap is closed on the neck of the container.
【請求項4】 前記タンパーエビデントバンドの突起及
びキャップ本体スカート部の突起が、キャップを容器口
頚部に閉蓋する際に周方向及び軸線方向に係合する請求
項1又は2記載のキャップ。
4. The cap according to claim 1, wherein the protrusion of the tamper evidence band and the protrusion of the skirt portion of the cap body engage in the circumferential direction and the axial direction when the cap is closed on the neck of the container.
【請求項5】 前記キャップ本体スカート部の突起が、
係合時にタンパーエビデントバンドの突起の上面を覆う
ような突出部を有し、タンパーエビデントバンドの突起
及びキャップ本体スカート部の突起が軸線方向及び周方
向の両方で係合する請求項4記載のキャップ。
5. The projection of the cap body skirt portion,
5. A protrusion part which covers the upper surface of the protrusion of the tamper-evidence band at the time of engagement, and the protrusion of the tamper-evidence band and the protrusion of the cap body skirt part engage in both the axial direction and the circumferential direction. Cap.
【請求項6】 前記タンパーエビデントバンドの突起及
びキャップ本体スカート部の突起が、何れも係合面が傾
斜し、互いに係合したときに合致するよう対称になっ
て、タンパーエビデントバンドの突起及びキャップ本体
スカート部の突起が軸線方向及び周方向の両方で係合す
る請求項4記載のキャップ。
6. The protrusion of the tamper-evidence band and the protrusion of the skirt portion of the cap body are symmetrical with each other such that the engaging surfaces are inclined and are aligned so as to match when they engage with each other. The cap according to claim 4, wherein the projection on the skirt portion of the cap body engages in both the axial direction and the circumferential direction.
JP20230594A 1994-08-26 1994-08-26 Cap with clear opening mechanism Expired - Fee Related JP3574474B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20230594A JP3574474B2 (en) 1994-08-26 1994-08-26 Cap with clear opening mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20230594A JP3574474B2 (en) 1994-08-26 1994-08-26 Cap with clear opening mechanism

Publications (2)

Publication Number Publication Date
JPH0858818A true JPH0858818A (en) 1996-03-05
JP3574474B2 JP3574474B2 (en) 2004-10-06

Family

ID=16455349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20230594A Expired - Fee Related JP3574474B2 (en) 1994-08-26 1994-08-26 Cap with clear opening mechanism

Country Status (1)

Country Link
JP (1) JP3574474B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000016445A (en) * 1998-06-30 2000-01-18 Taisei Kako Kk Container with cap
WO2014057054A1 (en) * 2012-10-11 2014-04-17 Capartis Ag Closing cap, container neck, tamper-evident closure, and method for producing a tamper-evident closure
JP2016008058A (en) * 2014-06-24 2016-01-18 三笠産業株式会社 cap

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000016445A (en) * 1998-06-30 2000-01-18 Taisei Kako Kk Container with cap
WO2014057054A1 (en) * 2012-10-11 2014-04-17 Capartis Ag Closing cap, container neck, tamper-evident closure, and method for producing a tamper-evident closure
US9475618B2 (en) 2012-10-11 2016-10-25 Capartis Ag Closing cap, container neck, tamper-evident closure, and method for producing a tamper-evident closure
JP2016008058A (en) * 2014-06-24 2016-01-18 三笠産業株式会社 cap

Also Published As

Publication number Publication date
JP3574474B2 (en) 2004-10-06

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