JP2004256127A

JP2004256127A - Bottle with tamper-proof ring

Info

Publication number: JP2004256127A
Application number: JP2003046962A
Authority: JP
Inventors: Takashi Saito; 剛史齋藤
Original assignee: Toppan Printing Co Ltd
Current assignee: Toppan Inc
Priority date: 2003-02-25
Filing date: 2003-02-25
Publication date: 2004-09-16

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bottle with a tamper-proof ring in which a cap body is easily screwed to the bottle with a constant torque when a cap is screwed to the bottle, and the cap body is easily unscrewed from the bottle without high torque when the cap is unscrewed from the bottle. <P>SOLUTION: In the container with the tamper-proof ring, a plurality of ratchets 401 are circumferentially provided on an inner circumferential surface on a lower end of a circumferential wall of a cap body 200 on a neck part 110 of a bottle 100 with a plurality of ratchets 111 circumferentially provided on a lower part. A cap with a tamper-proof ring 400 connected thereto via a plurality of easily-breakable connection bands 300 is screwed. When the cap is unscrewed, the ratchets of the bottle are fitted to the ratchets of the cap to break the easily-breakable connection bands of the cap, and the cap body is separated from the tamper-proof ring to unseal the container. The number of the ratchets of the cap is odd, and the number of the ratchets provided on the neck part of the bottle is set to be an even number which is not fitted evenly into the number of the ratchets of the cap. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、飲料などの液体内容物を充填するプラスチック製の不正開封防止環付容器に関するものである。
【０００２】
【従来の技術】
従来、飲料などの液体内容物を充填した例えばＰＥＴボトル（ポリエチレンテレフタレートを二軸延伸ブロー成形したボトル）などのプラスチック製のボトルには、流通過程で誤って又は故意に開封されることを防ぐ、つまり商品のバージン性を確保するために、図１（ａ）に示すように、キャップ本体（２００）の周壁（２２０）下端に複数個の易破断連結帯（３００）で不正開封防止環（４００）を接続するキャップを、ボトル（１００）の口頸部（１１０）に、螺着して封止した不正開封防止環付容器（１０）が使用されていた。この不正開封防止環付容器は、内容物を使用するためにキャップ本体を螺脱回転方向へ回転すると、ボトルの口頸部の下方部の周方向に設けられたラチェット爪と、キャップの不正開封防止環の内周面に設けられたラチェット爪が嵌合して、キャップの易破断連結帯が破断し、キャップ本体と不正開封防止環が分離してボトルが開封するものであった。
【０００３】
【発明が解決しようとする課題】
しかしながら、上述の従来の不正開封防止環付容器は、通常、図５に示すように、ボトルの口頸部（１１０）の下方部の周方向に４個のラチェット爪（１１）が設けられ、キャップの不正開封防止環（４００）の内周面の周方向に８個のラチェット爪（４０１）が設けられおり、キャップをボトルの口頸部に螺着するときに、キャップの４個のラチェット爪がボトルの４個のラチェット爪を同時に乗り越えるため、図６に示すように、複数回にわたって強いトルク値を必要とし、この結果、キャップの螺着トルク値を一定に安定させることが難しく、キャップがボトルの口頸部に強く螺着し過ぎることがあった。また、キャップをボトルの口頸部から螺脱するときに、キャップの４個のラチェット爪がボトルの４個のラチェット爪と同時に嵌合して、図１（ａ）に示すキャップ本体（２００）と不正開封防止環（４００）を連結する複数個の易破断連結帯（３００）を同時に破断するため、図７に示すように、易破断連結帯の破断に高いトルク値を必要とし、キャップ本体が螺脱しにくいことがあった。
【０００４】
本発明は、上述の従来の不正開封防止環付容器の問題を解決したものであり、キャップをボトルの口頸部に螺着するとき、安定したトルク値で螺着しやすく、また、キャップをボトルの口頸部から螺脱するときに、高いトルク値を必要とせず、キャップ本体が螺脱しやすい不正開封防止環付容器を提供するものである。
【０００５】
【課題を解決するための手段】
本発明の第１の発明は、複数個のラチェット爪を下方部の周方向に設けたボトルの口頸部に、キャップ本体の周壁下端に、周方向に複数個のラチェット爪を内周面に設けた不正開封防止環を、複数個の易破断連結帯を介して連結するキャップを螺着し、前記キャップを螺脱するときに、前記ボトルのラチェット爪と前記キャップのラチェット爪とが嵌合して前記キャップの易破断連結帯が破断し、キャップ本体と不正開封防止環が分離して開封する不正開封防止環付容器において、前記キャップのラチェット爪の個数が、奇数個であり、かつ前記ボトルの口頸部に設けるラチェット爪の個数が、前記キャップのラチェット爪の個数の偶数倍でない偶数個であることを特徴とする不正開封防止環付容器である。
【０００６】
そして、本発明の第２の発明は、複数個のラチェット爪を下方部の周方向に設けたボトルの口頸部に、キャップ本体の周壁下端に、周方向に複数個のラチェット爪を内周面に設けた不正開封防止環を、複数個の易破断連結帯を介して連結するキャップを螺着し、前記キャップを螺脱するときに、前記ボトルのラチェット爪と前記キャップのラチェット爪とが嵌合して前記キャップの易破断連結帯が破断し、キャップ本体と不正開封防止環が分離して開封する不正開封防止環付容器において、前記ボトルのラチェット爪の個数が、奇数個であり、かつ前記キャップの口頸部に設けるラチェット爪の個数が、前記ボトルのラチェット爪の個数の偶数倍でない偶数個であることを特徴とする不正開封防止環付容器である。
【０００７】
【作用】
本発明の不正開封防止環付容器は、キャップのラチェット爪の個数が奇数個で、ボトルの口頸部に設けるラチェット爪の個数がキャップのラチェット爪の個数の偶数倍でない偶数個であるか、または、ボトルのラチェット爪の個数が奇数個で、キャップの口頸部に設けるラチェット爪の個数がボトルのラチェット爪の個数の偶数倍でない偶数個であるため、キャップをボトルの口頸部に螺着するときのキャップのラチェット爪のボトルのラチェット爪の乗り越えは、キャップの一個のラチェット爪がボトルの一個のラチェット爪を乗り越えるものであり、乗り越え回数が従来の不正開封防止環付容器より増えるが、必要なトルク値は小さくて済むため、キャップの螺着トルク値を一定に安定しやすく、この結果、キャップを強くボトルの口頸部に螺着し過ぎることがない。
【０００８】
また、キャップをボトルの口頸部から螺脱するときのボトルのラチェット爪とキャップのラチェット爪との嵌合は、ボトルの一個のラチェット爪とキャップの一個のラチェット爪が嵌合して、そのボトルのラチェット爪に近い易破断連結帯が破断するものであり、易破断連結帯を破断する回数が従来の不正開封防止環付容器より増えるが、必要なトルク値は小さくて済むため、キャップ本体をボトルの口頸部から螺脱しにくいことがない。
【０００９】
【発明の実施の形態】
本発明の不正開封防止環付容器は、ボトルの口頸部に不正開封防止環付キャップを螺着するものであり、ボトルの口頸部の下方部（雄ねじの下）に図１（ｂ）に示す複数個のラチェット爪（１１１）（キャップの螺着時に接触する側に傾斜面をもちキャップの螺脱時に接触する側に垂直面をもつ）を周方向へ等間隔に設け、図１（ａ）に示すように、キャップ本体の周壁下端に不正開封防止環（４００）を、周方向へ設けた複数個の薄肉の易破断連結帯（３００）を介して連結し、不正開封防止環の内周面に図１（ｂ）に示す複数個のラチェット爪（４０１）（螺着時にボトルと接触する側に傾斜面をもち螺脱時にボトルと接触側に垂直面をもつ）を周方向へ等間隔に設けるものである。ボトルは、ポリエチレンテレフタレートなどの熱可塑性樹脂を二軸延伸ブロー成形するか、ポリエチレン、ポリプロピレンなどの熱可塑性樹脂をダイレクトブロー成形するものであり、キャップは、ポリエチレンやポリプロピレンなどの熱可塑性樹脂を射出成形するものである。
【００１０】
一実施形態のキャップ及びボトルのラチェット爪の形成は、キャップのラチェット爪の個数が奇数個であり、ボトルのラチェット爪の個数がキャップのラチェット爪の個数の偶数倍でない偶数個である。
【００１１】
例えば、図１（ｂ）に示すように、キャップの不正開封防止環（４００）の内周面に形成するラチェット爪（４０１）の個数が５個で、ボトルの口頸部（１１０）の下方部に形成するラチェット爪（１１１）の個数が４個であり、この本実施形態の不正開封防止環付容器は、キャップをボトルの口頸部に螺着するときに、図２に示すように、キャップのラチェット爪のボトルのラチェット爪の乗り越えが多数回発生するが、乗り越えに必要なトルク値は比較的に小さく、キャップの螺着トルク値を一定に安定しやすく、キャップがボトルの口頸部に強く螺着し過ぎることがなかった。また、ボトルの口頸部からキャップを螺脱するときに、図３に示すように、ボトルのラチェット爪とキャップのラチェット爪との嵌合による易破断連結帯の破断が４回発生するが、破断に必要なトルク値は比較的に小さく、キャップ本体をボトルの口頸部から螺脱しにくいことがなかった。
【００１２】
他の一実施形態のキャップ及びボトルのラチェット爪の形成は、ボトルのラチェット爪の個数が奇数個であり、キャップの口頸部に設けるラチェット爪の個数がボトルのラチェット爪の個数の偶数倍でない偶数個である。
【００１３】
例えば、図４に示すように、ボトルの口頸部（１１０）の下方部に形成するラチェット爪（１１１）の個数が３個で、キャップの不正開封防止環（４００）の内周面に形成するラチェット爪（４０１）の個数が８個である。この本実施形態の不正開封防止環付容器は、キャップをボトルの口頸部に螺着するときに、キャップのラチェット爪のボトルのラチェット爪の乗り越えが８回発生するが、乗り越えに必要なトルク値は比較的に小さく、キャップの螺着トルク値を一定に安定しやすく、キャップがボトルの口頸部に強く螺着し過ぎることがなかった。また、ボトルの口頸部からキャップを螺脱するときに、ボトルのラチェット爪とキャップのラチェット爪との嵌合による易破断連結帯の破断が３回発生するが、破断に必要なトルク値は比較的に小さく、キャップ本体をボトルの口頸部から螺脱しにくいことがなかった。
【００１４】
【発明の効果】
本発明の不正開封防止環付容器は、ボトルの口頸部の下方部に形成するラチェット爪の個数とキャップの不正開封防止環の内周面に形成するラチェット爪の個数が規制されており、キャップをボトルに螺着するときに、ボトルのラチェット爪とキャップのラチェット爪とが一個ずつ乗り越え、安定したトルク値で螺着しやすく、また、キャップをボトルから螺脱するときに、ボトルのラチェット爪とキャップのラチェット爪とが一個ずつ嵌合してキャップの易破断連結帯を部分ずつに破断し、高いトルク値を必要とせず、キャップ本体が螺脱しやすい。
【図面の簡単な説明】
【図１】（ａ）は、一例の不正開封防止環付容器の要部の正面図であり、（ｂ）は、本発明の一実施形態の不正開封防止環付容器における（ａ）に示すＡ−Ａ’線断面図である。
【図２】図１（ｂ）に示す本発明の不正開封防止環付容器において、不正開封防止付キャップをボトルの口頸部に螺着したときのキャップのラチェット爪がボトルのラチェット爪を乗り越えるときに発生するトルク値のピークを示すグラフである。
【図３】図１（ｂ）に示す本発明の不正開封防止環付容器において、不正開封防止付キャップをボトルの口頸部から螺脱したときのキャップのラチェット爪がボトルのラチェット爪に嵌合して易破断連結帯が破断したときに発生するトルク値のピークを示すグラフである。
【図４】本発明の他の一実施形態の不正開封防止環付容器における図１（ａ）に示すＡ−Ａ’線断面図である。
【図５】従来の一例の不正開封防止環付容器における図１（ａ）に示すＡ−Ａ’線断面図である。
【図６】図５に示す従来の一例の不正開封防止環付容器において、不正開封防止付キャップをボトルの口頸部に螺着したときのキャップのラチェット爪がボトルのラチェット爪を乗り越えるときに発生するトルク値のピークを示すグラフである。
【図７】図５に示す従来の一例の不正開封防止環付容器において、不正開封防止付キャップをボトルの口頸部から螺脱したときのキャップのラチェット爪がボトルのラチェット爪に嵌合して易破断連結帯が破断したときに発生するトルク値のピークを示すグラフである。
【符号の説明】
１０……不正開封防止環付容器
１００……ボトル
１１０……口頸部
１１１，４０１……ラチェット爪
２００……キャップ本体
２１０……天板
２２０……周壁
３００……易破断連結帯
４００……不正開封防止環[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plastic tamper-evident ring with a liquid content such as a beverage.
[0002]
[Prior art]
Conventionally, plastic bottles such as PET bottles (bottles formed by biaxially stretch-blown polyethylene terephthalate) filled with liquid contents such as beverages are prevented from being accidentally or intentionally opened during the distribution process. In other words, as shown in FIG. 1 (a), in order to ensure the virginity of the product, a plurality of easily breakable connecting bands (300) are provided at the lower end of the peripheral wall (220) of the cap body (200) to prevent the tamper-evident ring (400). ), A container (10) with a tamper-proof ring is used, which is screwed and sealed to the mouth and neck (110) of the bottle (100). When the cap body is rotated in the unscrewed rotation direction to use the contents, the container with the tamper-evident ring is provided with a ratchet claw provided in the circumferential direction below the mouth and neck of the bottle, and the tamper-proof opening of the cap. The ratchet pawl provided on the inner peripheral surface of the prevention ring is fitted, the easily breakable connection band of the cap is broken, the cap body and the tamper-evident prevention ring are separated, and the bottle is opened.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned conventional container with a tamper-evident ring is usually provided with four ratchet claws (11) in the circumferential direction below the mouth and neck (110) of the bottle, as shown in FIG. Eight ratchet pawls (401) are provided in the circumferential direction of the inner peripheral surface of the cap tamper-evident ring (400), and when the cap is screwed onto the mouth and neck of the bottle, the four ratchets of the cap are provided. As shown in FIG. 6, a strong torque value is required a plurality of times because the pawl gets over the four ratchet pawls of the bottle at the same time. As a result, it is difficult to stably stabilize the screwing torque value of the cap. Was too tightly screwed into the mouth and neck of the bottle. Further, when the cap is unscrewed from the mouth and neck of the bottle, the four ratchet claws of the cap are fitted simultaneously with the four ratchet claws of the bottle, and the cap body (200) shown in FIG. In order to simultaneously break the plurality of easily breakable connecting bands (300) connecting the tamper-proof ring (400) and the tamper-evident ring (400), a high torque value is required for breaking the easily breakable connecting band as shown in FIG. Was difficult to unscrew.
[0004]
The present invention solves the problem of the above-mentioned conventional container with a tamper-evident ring.When the cap is screwed to the mouth and neck of the bottle, it is easy to screw with a stable torque value. An object of the present invention is to provide a container with a tamper-resistant ring that does not require a high torque value when the bottle is unscrewed from the mouth and neck of the bottle, and the cap body is easily unscrewed.
[0005]
[Means for Solving the Problems]
According to a first aspect of the present invention, a plurality of ratchet pawls are provided on the inner peripheral surface of the bottle at the lower end of the peripheral wall of the cap body, and a plurality of ratchet pawls are provided on the inner peripheral surface. A cap for connecting the provided tamper-evident ring with a plurality of easily rupturable connection bands is screwed on, and when the cap is unscrewed, the ratchet claw of the bottle and the ratchet claw of the cap are fitted. Then, the easily breakable connection band of the cap is broken, and the cap body and the tamper evident ring are separated and opened.In the tamper evident ring container, the number of ratchet claws of the cap is an odd number, and A container with a tamper-evident ring, wherein the number of ratchet claws provided on the mouth and neck of the bottle is an even number that is not an even multiple of the number of ratchet claws of the cap.
[0006]
In the second invention of the present invention, a plurality of ratchet pawls are provided on the inner periphery of a bottle having a plurality of ratchet pawls provided in a lower circumferential direction, a lower end of a peripheral wall of a cap body, and a plurality of ratchet pawls in the circumferential direction. A cap for connecting the tamper-evident ring provided on the surface via a plurality of easily rupturable connection bands is screwed on, and when the cap is unscrewed, the ratchet claw of the bottle and the ratchet claw of the cap are connected. In the container with the tamper-evident ring that is fitted and the easy-breaking connection band of the cap is broken and the cap body and the tamper-evident ring are separated and opened, the number of ratchet claws of the bottle is an odd number, A container with a tamper-evident ring, wherein the number of ratchet claws provided on the mouth and neck of the cap is an even number that is not an even multiple of the number of ratchet claws of the bottle.
[0007]
[Action]
The container with a tamper-evident ring of the present invention has an odd number of ratchet claws on the cap and an even number of ratchet claws provided on the mouth and neck of the bottle that is not an even multiple of the number of ratchet claws on the cap, Alternatively, since the number of ratchet claws on the bottle is an odd number and the number of ratchet claws provided on the mouth and neck of the cap is an even number that is not an even multiple of the number of ratchet claws on the bottle, the cap is screwed on the neck and neck of the bottle. When the ratchet claw of the bottle of the cap is worn over the ratchet claw of the bottle, one ratchet claw of the cap goes over one ratchet claw of the bottle, and the number of times of overcoming is greater than that of the conventional container with a tamper-evident ring. Since the required torque value is small, it is easy to stabilize the screwing torque value of the cap to a constant value. It is never too screwed in.
[0008]
Further, when the cap is unscrewed from the neck and neck of the bottle, the ratchet claw of the bottle and the ratchet claw of the cap are fitted together, and one ratchet claw of the bottle and one ratchet claw of the cap are fitted. The easy-to-break connection band near the ratchet claw of the bottle breaks, and the number of times that the easy-to-break connection band is broken increases compared to the conventional container with a tamper-evident ring, but the required torque value can be small, so the cap body It is not difficult to screw off the mouth and neck of the bottle.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The container with a tamper-evident ring of the present invention has a tamper-evident ring cap screwed onto the mouth and neck of the bottle. Are provided at regular intervals in the circumferential direction with a plurality of ratchet pawls (111) (having an inclined surface on the side contacted when the cap is screwed and having a vertical surface on the side contacted when the cap is unscrewed) shown in FIG. As shown in a), a tamper-evident ring (400) is connected to the lower end of the peripheral wall of the cap body via a plurality of thin-walled easily rupturable connecting bands (300) provided in the circumferential direction. A plurality of ratchet claws (401) shown in FIG. 1 (b) on the inner peripheral surface (having an inclined surface on the side that comes into contact with the bottle when screwed and having a vertical surface on the side that comes into contact with the bottle when unscrewed) are provided in the circumferential direction. They are provided at equal intervals. Bottles are made by biaxial stretch blow molding of thermoplastic resin such as polyethylene terephthalate or direct blow molding of thermoplastic resin such as polyethylene or polypropylene, and caps are injection molded of thermoplastic resin such as polyethylene or polypropylene. Is what you do.
[0010]
In one embodiment, the cap and bottle ratchet pawls are formed such that the number of ratchet pawls on the cap is odd and the number of ratchet pawls on the bottle is an even number that is not an even multiple of the number of ratchet pawls on the cap.
[0011]
For example, as shown in FIG. 1B, the number of ratchet claws (401) formed on the inner peripheral surface of the tamper-evident ring (400) of the cap is five, and the number of the ratchet claws (401) is below the mouth and neck (110) of the bottle. The number of the ratchet claws (111) formed in the portion is four, and when the cap is screwed onto the mouth and neck of the bottle, the container with the tamper-proof ring according to the present embodiment, as shown in FIG. Many times, the ratchet claw of the cap gets over the ratchet claw of the bottle, but the torque value required for overcoming is relatively small, the screwing torque value of the cap is easily stabilized to a constant value, and the cap is It was not too tightly screwed into the part. In addition, when the cap is unscrewed from the mouth and neck of the bottle, as shown in FIG. 3, the break of the easily breakable connection band due to the engagement between the ratchet claw of the bottle and the ratchet claw of the cap occurs four times. The torque value required for breaking was relatively small, and there was no difficulty in removing the cap body from the mouth and neck of the bottle.
[0012]
In another embodiment, the number of ratchet claws of the cap and the bottle is such that the number of ratchet claws of the bottle is an odd number, and the number of ratchet claws provided on the mouth and neck of the cap is not an even multiple of the number of the ratchet claws of the bottle. It is an even number.
[0013]
For example, as shown in FIG. 4, the number of ratchet claws (111) formed below the mouth and neck (110) of the bottle is three, and the number of ratchet claws (111) is formed on the inner peripheral surface of the tamper-evident ring (400) of the cap. The number of ratchet claws (401) is eight. In the container with a tamper-evident ring according to the present embodiment, when the cap is screwed onto the mouth and neck of the bottle, the ratchet claw of the cap crosses the ratchet claw of the bottle eight times. The value was relatively small, and the screwing torque value of the cap was easily stabilized at a constant value, and the cap was not screwed too tightly on the mouth and neck of the bottle. In addition, when the cap is unscrewed from the neck and neck of the bottle, the easily breakable connection band is broken three times due to the engagement between the ratchet claw of the bottle and the ratchet claw of the cap. Relatively small, there was no difficulty in removing the cap body from the mouth and neck of the bottle.
[0014]
【The invention's effect】
In the container with a tamper-evident ring of the present invention, the number of ratchet claws formed on the lower portion of the mouth and neck of the bottle and the number of ratchet claws formed on the inner peripheral surface of the tamper-proof ring of the cap are regulated. When screwing the cap onto the bottle, the ratchet claw on the bottle and the ratchet claw on the cap get over one by one, making it easy to screw in with a stable torque value. The pawl and the ratchet pawl of the cap are fitted one by one to break the easily breakable connecting band of the cap into portions, so that a high torque value is not required and the cap body is easily screwed off.
[Brief description of the drawings]
FIG. 1 (a) is a front view of a main part of an example of a container with a tamper-evident ring, and FIG. 1 (b) is a view showing (a) in the container with a tamper-proof ring of one embodiment of the present invention. It is AA 'line sectional drawing.
FIG. 2 is a side view of the container with a tamper-evident ring according to the present invention shown in FIG. 1 (b). 6 is a graph showing a peak of a torque value that sometimes occurs.
FIG. 3 shows the container with a tamper-evident ring of the present invention shown in FIG. 1B, in which the ratchet claw of the cap when the cap with tamper-proof is screwed off the mouth and neck of the bottle fits into the ratchet claw of the bottle. It is a graph which shows the peak of the torque value which generate | occur | produces when an easily breakable connection band fracture | ruptures together.
FIG. 4 is a cross-sectional view taken along the line AA ′ of FIG. 1 (a) of the tamper-evident preventing ring-equipped container according to another embodiment of the present invention.
FIG. 5 is a cross-sectional view taken along line AA ′ shown in FIG. 1 (a) of a conventional example of a container with a tamper-evident prevention ring.
FIG. 6 shows a conventional container with a tamper-evident ring shown in FIG. 5, in which the ratchet claw of the cap over the ratchet claw of the bottle when the cap with tamper-proof is screwed onto the mouth and neck of the bottle. 4 is a graph showing a peak of a generated torque value.
FIG. 7 shows an example of the conventional container with a tamper-evident ring shown in FIG. 6 is a graph showing a peak of a torque value generated when the easily breakable connection band breaks.
[Explanation of symbols]
Reference numeral 10: Container 100 with tamper-proof ring 100 Bottle 110 Neck and neck 111, 401 Ratchet claw 200 Cap body 210 Top plate 220 Peripheral wall 300 Easy-break connection band 400 Tamper evident ring

Claims

A plurality of ratchet pawls provided with a plurality of ratchet pawls on the inner peripheral surface in the circumferential direction at the lower end of the peripheral wall of the cap at the mouth and neck of the bottle provided with a plurality of ratchet pawls in the lower circumferential direction. When the cap to be connected via the easily breakable connection band is screwed in and the cap is unscrewed, the ratchet claw of the bottle and the ratchet claw of the cap are fitted to each other to easily break the connection band of the cap. Wherein the number of ratchet claws of the cap is an odd number, and the ratchet pawl provided on the mouth and neck of the bottle is provided. Is an even number which is not an even multiple of the number of ratchet claws of the cap.

A plurality of ratchet pawls provided with a plurality of ratchet pawls on the inner peripheral surface in the circumferential direction are provided at the mouth and neck of the bottle provided with a plurality of ratchet pawls in the lower circumferential direction, at the lower end of the peripheral wall of the cap body, When the cap to be connected via the easily breakable connection band is screwed in and the cap is unscrewed, the ratchet claw of the bottle and the ratchet claw of the cap are fitted to each other to easily break the connection band of the cap. Is broken, the cap body and the tamper-evident ring are separated and opened. In the container with the tamper-evident ring, the number of ratchet claws of the bottle is an odd number, and the ratchet claw provided on the mouth and neck of the cap is provided. Is an even number which is not an even multiple of the number of ratchet claws of the bottle.