JP2003267408A - Cap excellent in cleaning property - Google Patents

Cap excellent in cleaning property

Info

Publication number
JP2003267408A
JP2003267408A JP2002063825A JP2002063825A JP2003267408A JP 2003267408 A JP2003267408 A JP 2003267408A JP 2002063825 A JP2002063825 A JP 2002063825A JP 2002063825 A JP2002063825 A JP 2002063825A JP 2003267408 A JP2003267408 A JP 2003267408A
Authority
JP
Japan
Prior art keywords
cap
skirt
notch
top plate
screw thread
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
JP2002063825A
Other languages
Japanese (ja)
Other versions
JP4205883B2 (en
Inventor
Shigenori Murakami
榮規 村上
Seiji Suzuki
誠治 鈴木
Yoichi Tsujiguchi
洋一 辻口
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 JP2002063825A priority Critical patent/JP4205883B2/en
Publication of JP2003267408A publication Critical patent/JP2003267408A/en
Application granted granted Critical
Publication of JP4205883B2 publication Critical patent/JP4205883B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Closures For Containers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap in which the external periphery of the mouth of a container, the whole area of the skirt of the internal surface of the cap, and a part of the peripheral edge of a top plate can surely be cleaned and the outflow and inflow of cleaning water is easy and the residue of cleaning water can effectively be prevented. <P>SOLUTION: This cap comprises a top plate and a skirt. The skirt is provided with the thread of a screw, at the inner surface. This thread of the screw vertically extends form the peripheral edge of the top plate and is fitted in the mouth of the container. The skirt is provided with a recess for dividing the thread of the crew in the peripheral direction, at the inner surface thereof. The cap forms a passage of cleaning water formed with the recess and the space between upper and lower threads of screws. The flow passage in the axial direction formed of the recess is provided with the recess in the axial direction. <P>COPYRIGHT: (C)2003,JPO

Description

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

【0001】[0001]

【発明の属する技術分野】本発明は充填後の洗浄性に優
れたキャップに関し、より詳細には、容器口部とキャッ
プとの間に付着残存する内容液を確実に洗浄することが
できると共に、洗浄液の残存が有効に防止されたキャッ
プに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap excellent in cleanability after filling, and more specifically, it is possible to reliably clean the content liquid remaining between the container mouth and the cap, The present invention relates to a cap in which residual cleaning liquid is effectively prevented.

【0002】[0002]

【従来の技術】従来より、容器内に内容液を充填してキ
ャッピングした後、容器口部外周面とキャップの内周面
との間に付着残存した内容液を洗浄するために、キャッ
プに向けて洗浄液を噴射し、キャップ内部に洗浄液を流
入させることが行われている。このような洗浄液を噴射
することにより洗浄可能なキャップとしては、例えば、
キャップの天面周縁部とスカート部或いはこれらの境界
領域に周方向に間隔をおいて複数個の孔が形成されてい
るキャップが提案されている(実公平4−54119号
公報等)。
2. Description of the Related Art Conventionally, a container is filled with a content liquid and capped, and then, the liquid is attached to the cap to clean the remaining content liquid adhering between the outer peripheral surface of the container opening and the inner peripheral surface of the cap. The cleaning liquid is sprayed by the above method to flow the cleaning liquid into the inside of the cap. As a cap that can be cleaned by spraying such a cleaning liquid, for example,
A cap has been proposed in which a plurality of holes are formed at circumferential intervals in the peripheral portion of the top surface of the cap and the skirt portion or in a boundary region between them (Japanese Utility Model Publication No. 4-54119, etc.).

【0003】上記のような複数個の孔が形成されている
キャップでは、埃及び外観の問題から、可及的に小さい
ことが要求されることから、キャップを成形した後に、
タンパーエビデントバンド(以下、TEバンドという)
の形成と共に、カッター等によってスカート部に切込み
を入れることにより形成されている(特開平11−20
8693号公報)。一方、このように可及的に小さい孔
が形成されたキャップにおいては、キャップ内に洗浄液
を充分に流入させることは困難であり、このため、キャ
ップ内部に効率的に洗浄液を流入させる方法として、6
5℃以上の洗浄液を噴射するか、或いはキャップを70
℃以上に加熱した後、45乃至70℃の洗浄液を噴射す
ることが提案されている(特開2000−85727号
公報)。
In a cap having a plurality of holes as described above, it is required that the cap be as small as possible due to dust and appearance problems.
Tamper-evidence band (hereinafter referred to as TE band)
Along with the formation of the above, it is formed by making a notch in the skirt portion with a cutter or the like (JP-A-11-20
8693). On the other hand, in the cap having such a hole as small as possible, it is difficult to sufficiently flow the cleaning liquid into the cap. Therefore, as a method of efficiently flowing the cleaning liquid into the cap, 6
Spray a cleaning liquid of 5 ℃ or more, or use a cap 70
It has been proposed to spray the cleaning liquid at 45 to 70 ° C. after heating it to a temperature of not less than 0 ° C. (Japanese Patent Laid-Open No. 2000-85727).

【0004】[0004]

【発明が解決しようとする課題】上記方法によれば、キ
ャップ内部を効率的に洗浄することが可能であるが、上
記方法では、容器口部及びキャップを比較的高温に加熱
することになるため、例えば無菌充填(アセプティック
充填)された容器及びキャップには適用することができ
ない。すなわち、無菌充填が適用される容器においては、
内容物の変質などを防止するために充填後の加熱殺菌を
前提としないため、容器口部が耐熱性を有しておらず、
このような容器において、65℃以上の洗浄液を噴射さ
せて必要な洗浄効果を得ようとする場合には、容器口部
の変形を生じる恐れがあり、密封性に問題を起こす可能
性がある。
According to the above method, the inside of the cap can be efficiently cleaned, but in the above method, the container mouth and the cap are heated to a relatively high temperature. , For example, it cannot be applied to aseptically filled containers and caps. That is, in a container to which aseptic filling is applied,
Since it does not require heat sterilization after filling to prevent alteration of the contents, the container mouth does not have heat resistance,
In order to obtain a required cleaning effect by spraying a cleaning liquid at 65 ° C. or higher in such a container, the container mouth may be deformed, which may cause a problem in sealing performance.

【0005】また、キャップに複数個の孔を設けること
なく、洗浄する方法も提案されており、特開2000−
7096号公報には、容器口部外周に形成されたネジ山
部またはこれに螺合するキャップのネジ山部の少なくと
も一方に縦方向複数個所にベントスリットを形成し、容
器のネックサポート部とキャップの下端との間の間隙に
向けて洗浄水を噴射させ、ベントスリットを通じて容器
口部外周部とキャップ内面との間を洗浄する方法が提案
されている。
There has also been proposed a method of cleaning without providing a plurality of holes in the cap, which is disclosed in Japanese Patent Laid-Open No. 2000-
No. 7096 discloses that a vent slit is formed at a plurality of vertical positions in at least one of a thread portion formed on the outer periphery of a container mouth portion and a thread portion of a cap screwed to the thread portion, and a neck support portion and a cap of the container are disclosed. There is proposed a method of injecting cleaning water toward a gap between the container and the lower end of the container to clean the space between the outer peripheral portion of the container mouth and the inner surface of the cap through the vent slit.

【0006】上記方法では、高圧で噴射された洗浄水は
キャップのスカート部内面とベントスリットの間を通っ
て容器口部外周及びキャップ内面を洗浄するが、洗浄水
の流通路はベントスリットと容器口部の間のわずかな間
隙であるため、下方から噴射された洗浄水を効果的に上
方に流動すること、或いは上方に向かった後上方から下
方に向かって流れ、再びキャップの外に流れ出るには不
十分である。また上記方法では、容器口部の螺子山の下
方には、TEバンドの係止片と係止する環状の顎部が形
成されているため、洗浄水の上方への流通を困難にして
いる。キャップ内に残った洗浄液は消費者に内容液の漏
洩と誤認されたり、或いはかびの発生等の原因になる恐
れがある。その一方、洗浄水の流量を多くすべく流通路
を大きくすると、キャップスカート部内面及び容器口部
の外周面が汚染されやすくなる恐れがある。
In the above method, the cleaning water sprayed at a high pressure passes between the inner surface of the skirt of the cap and the vent slit to clean the outer periphery of the container mouth and the inner surface of the cap. Due to the small gap between the mouths, the cleaning water sprayed from below can effectively flow upwards, or it can flow upwards and then downwards and out again from the cap. Is insufficient. Further, in the above method, since the annular jaw that engages with the engaging piece of the TE band is formed below the screw thread of the container mouth, it is difficult to flow the wash water upward. The cleaning liquid remaining in the cap may be mistaken by the consumer as leakage of the content liquid, or may cause fungus or the like. On the other hand, if the flow passage is enlarged to increase the flow rate of the washing water, the inner surface of the cap skirt portion and the outer peripheral surface of the container mouth may be easily contaminated.

【0007】従って本発明の目的は、容器口部外周及び
キャップ内面のスカート部全域及び頂板部の周縁の一部
を確実に洗浄できると共に、洗浄水の流出入が容易で洗
浄水の残存を有効に防止することが可能なキャップを提
供するにある。
Therefore, it is an object of the present invention to reliably clean the entire outer circumference of the container mouth, the entire skirt of the inner surface of the cap, and a part of the peripheral edge of the top plate, and facilitate the inflow and outflow of the cleaning water so that the remaining cleaning water is effective. It is to provide a cap that can be prevented.

【0008】[0008]

【課題を解決するための手段】本発明によれば、頂板部
と、該頂板部周縁から垂下し、容器口部に係合する螺子
山を内面に備えたスカート部から成り、該スカート部内
面には螺子山を周方向に分割する切欠きが形成され、該
切欠き及び上下の螺子山の間が洗浄液の流通路を形成す
るキャップにおいて、(1)前記切欠きにより形成され
る軸方向の流通路に、軸方向の溝が形成されていること
及び/又は(2)前記スカート部の内面が下方に向かっ
て内径が大きくなるようなテーパー状であることを特徴
とするキャップが提供される。
According to the present invention, there is provided a top plate portion and a skirt portion having a screw thread hanging from a peripheral edge of the top plate portion and provided with a screw thread for engaging with a container mouth portion, the inner surface of the skirt portion being formed. A notch that divides the screw thread in the circumferential direction is formed in the cap, and a cap that forms a flow passage for the cleaning liquid between the notch and the upper and lower threads is (1) in the axial direction formed by the notch. Provided is a cap characterized in that an axial groove is formed in the flow passage and / or (2) the inner surface of the skirt portion is tapered so that the inner diameter increases downward. .

【0009】本発明のキャップにおいては、(3)キャ
ップが射出成形により成形され、前記スカート部下端に
破断可能なブリッジ部を介して一体に成形されるタンパ
ーエビデントバンドを有するキャップであって、洗浄水
が該ブリッジ部間の開口から流入すること、(4)破断
可能なブリッジ部間の開口下端が径方向外方から内方に
向けて上方に傾斜していること、が好ましい。
In the cap of the present invention, (3) the cap is formed by injection molding and has a tamper-evidence band integrally formed on the lower end of the skirt through a breakable bridge portion, It is preferable that the cleaning water flows in through the opening between the bridge portions, and (4) that the lower end of the opening between the breakable bridge portions is inclined upward from the radially outer side toward the inner side.

【0010】[0010]

【発明の実施の形態】本発明は、キャップのスカート部
内面に設けられた螺子山を周方向に分割する切欠きが形
成され、該切欠き及び上下の螺子山の間が洗浄液の流通
路を形成するキャップにおいて、(1)前記切欠きによ
り形成される軸方向の流通路には、軸方向の溝が形成さ
れていること及び/又は(2)前記スカート部の内側面
が下方に向かって内径が大きくなるようなテーパー状で
あることが重要な特徴である。
BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, a notch for circumferentially dividing a screw thread provided on the inner surface of a skirt portion of a cap is formed, and a cleaning liquid flow passage is provided between the notch and the upper and lower screw threads. In the cap to be formed, (1) an axial groove is formed in the axial flow passage formed by the notch, and / or (2) the inner side surface of the skirt portion is directed downward. An important feature is that the inner diameter is tapered so that the inner diameter becomes large.

【0011】前述した通り、螺子山を周方向に分割する
ように設けられた切欠きは、洗浄水の上下方向の流通路
となり、上下の螺子山間の周方向の流通路と共に、下方
或いは上方から流入した洗浄水を容器口部外周部とキャ
ップ内面との間のほぼ全域に行き渡らせて洗浄するもの
であるが、本発明の上記(1)の態様においては、この
上下方向(軸方向)の流通路に軸方向の溝を形成するこ
とにより、流通路の流量を増加させて有効に洗浄を行う
と共に、洗浄後の洗浄液を効率よくキャップ外へ流出さ
せることが可能になるのである。図1は、上記(1)の
態様を備えたキャップの一例が容器口部と螺合された状
態を示す一部断面図であり、この図1に示されるよう
に、キャップ1の螺子山と容器口部20の螺子山は上下
方向に係合し、またそれぞれの螺子山先端13,23は
密封性を確保するためキャップ内面7及び容器口部外周
面24に近接している。このためそのままでは切欠きに
より形成される流通路11はわずかな間隙で、十分に洗
浄水を流通させることが難しいが、流通路11の部分の
スカート部の肉厚が多少薄くなるように溝が形成されて
いることにより、溝が洗浄水の誘導路を形成し、キャッ
プ上方への流通を有効に行うことができる。
As described above, the notch provided so as to divide the screw thread in the circumferential direction serves as a flow passage in the vertical direction of the wash water, and together with the flow passage in the circumferential direction between the upper and lower screw threads, from below or from above. Although the cleaning water that has flowed in is spread over almost the entire area between the outer peripheral portion of the container opening and the inner surface of the cap, in the aspect of the above (1) of the present invention, the vertical direction (axial direction) By forming the groove in the flow passage in the axial direction, it is possible to increase the flow rate of the flow passage for effective cleaning and to efficiently flush the cleaning liquid after cleaning out of the cap. FIG. 1 is a partial cross-sectional view showing a state in which an example of the cap having the above-mentioned aspect (1) is screwed into a container mouth portion, and as shown in FIG. The threads of the container mouth 20 are engaged in the vertical direction, and the tips 13 and 23 of the respective threads are close to the inner surface 7 of the cap and the outer surface 24 of the container mouth in order to ensure the hermeticity. For this reason, the flow passage 11 formed by the notch has a small gap as it is and it is difficult to sufficiently flow the wash water, but the groove is formed so that the wall thickness of the skirt portion of the flow passage 11 becomes slightly thin. By being formed, the groove forms a guide path for the wash water, and the flow above the cap can be effectively performed.

【0012】また本発明の上記(2)の態様において
は、スカート部の内面が下方に向かって内径が大きくな
るようなテーパー状になっているので、下方から流入さ
れた洗浄液が容易にキャップスカート部内面及び容器口
部外周部の間を通ることができると共に、上方に流れた
洗浄水が下方へ戻り、キャップ外へと容易に流出するこ
とも可能になる。図2は、上記(2)の態様を備えたキ
ャップ一例が容器口部と螺合された状態を示す一部断面
図であり、この図2に示されるように、キャップ1のス
カート部内面7は、下方に向かって内径が大きくなるよ
うに若干テーパー状になっている。このため、キャップ
内面に設けられた螺子山8a,8bと容器口部に設けら
れた螺子山21a,21bとの係合が下方(8bと22
bの係合)において上方(8aと21aの係合)よりも
若干浅い係合になっているため、切欠きによって形成さ
れる間隙が下方に行くに従って若干広くなり、洗浄水の
流出入が容易に行われるのである。
Further, in the above aspect (2) of the present invention, since the inner surface of the skirt portion is tapered so that the inner diameter increases downward, the cleaning liquid introduced from below can be easily introduced. It is possible to pass between the inner surface of the part and the outer peripheral part of the container mouth, and it is also possible for wash water that has flowed upward to return downward and to easily flow out of the cap. FIG. 2 is a partial cross-sectional view showing a state in which an example of the cap having the above-mentioned aspect (2) is screwed into the container mouth portion. As shown in FIG. 2, the inner surface 7 of the skirt portion of the cap 1 is Is slightly tapered so that the inner diameter increases downward. Therefore, the engagement between the screw threads 8a and 8b provided on the inner surface of the cap and the screw threads 21a and 21b provided on the container mouth is downward (8b and 22b).
In (engagement b), the engagement is slightly shallower than the upper side (engagement of 8a and 21a), so the gap formed by the notch becomes slightly wider as it goes downward, and the inflow and outflow of cleaning water is easy. It is done in.

【0013】本発明においては、上記(1)及び(2)
の特徴をそれぞれ単独で備えていてもよいが、上記
(1)及び(2)の両方を兼ね備えていることが特に好
ましい。これにより、洗浄水の流出入はより効率的にな
り、有効に洗浄が行われると共に、洗浄水がキャップ内
面及び容器口部外周面により形成される空間に残留する
ことも有効に防止される。
In the present invention, the above (1) and (2)
Although each of the features (1) and (2) may be independently provided, it is particularly preferable that both of the features (1) and (2) are provided. Thereby, the inflow and outflow of the cleaning water becomes more efficient, the cleaning is effectively performed, and the cleaning water is effectively prevented from remaining in the space formed by the inner surface of the cap and the outer peripheral surface of the container mouth.

【0014】本発明のキャップは、射出成形により成形
される、スカート部下端に破断可能なブリッジ部を介し
て一体に成形されるタンパーエビデントバンド(以下、
TEバンドという)を有するキャップであることが好ま
しい。すなわち、TEバンドをつなぐブリッジ部も後加
工によらず一体的に形成されるため、ブリッジ部間の開
口が、後加工によってカッター等により切り込みを入れ
られたものより大きく、低温の洗浄水であってもブリッ
ジ部の開口から流入させることが可能であり、耐熱性の
低い無菌充填用容器等においてもキャップ内面及び容器
口部外周の間の全域を有効に洗浄することが可能になる
のである。
The cap of the present invention is a tamper-evidence band (hereinafter, referred to as "molder") formed integrally by injection molding and at the lower end of the skirt through a rupturable bridge portion.
A cap having a TE band) is preferable. That is, since the bridge portion that connects the TE bands is also integrally formed without post-processing, the opening between the bridge portions is larger than that cut by a cutter or the like by post-processing, and it is low-temperature cleaning water. However, it is possible to make it flow from the opening of the bridge portion, and it is possible to effectively clean the entire area between the inner surface of the cap and the outer circumference of the container mouth even in a sterile filling container having low heat resistance.

【0015】この際、ブリッジ部間の開口の下端には径
方向外方から内方に向けて上方に傾斜する傾斜面が設け
られていることが特に好ましく、この傾斜面に噴射され
た洗浄水がぶつかることによって、水平方向から噴射さ
れた洗浄水が上方に角度を変えて流れ、効率よく、キャ
ップ内部に洗浄水を流入させることが可能になるのであ
る。
At this time, it is particularly preferable that the lower end of the opening between the bridge portions is provided with an inclined surface which inclines upward from the outside in the radial direction toward the inside, and the washing water sprayed onto this inclined surface is preferable. By hitting against each other, the cleaning water sprayed from the horizontal direction flows upward at different angles, and the cleaning water can efficiently flow into the cap.

【0016】以下本発明を添付図面に基づいて詳細に説
明する。図3は、上記(1)の態様を備えたキャップの
一例を示す図であり、(A)は側断面図、(B)は底面
図であり、図4は、上記(2)の態様を備えたキャップ
の一例を示す図であり、(A)は側断面図、(B)は底
面図である。図1及び図3において、全体を1で表す本
発明のキャップは、頂板部2、頂板部から垂下するスカ
ート部3から成り、スカート部3の下端には破断可能な
弱化部4を介してTEバンド5が設けられ、TEバンド
5の内面には、容器口部(図示せず)と係合するフラッ
プ片6が複数形成されている。スカート部3の内面7に
は、容器口部20に設けられる螺子部21と係合する螺
子部8が設けられている。また頂板部2の内面側には、
容器口部内に挿入され容器の密封性を保持するインナー
リング9がキャップシェルと一体に形成されている。
The present invention will be described below in detail with reference to the accompanying drawings. 3A and 3B are views showing an example of a cap having the above aspect (1), (A) is a side sectional view, (B) is a bottom view, and FIG. 4 shows the aspect (2). It is a figure which shows an example of the provided cap, (A) is a sectional side view, (B) is a bottom view. 1 and 3, the cap of the present invention, which is generally designated by 1, is composed of a top plate portion 2 and a skirt portion 3 depending from the top plate portion, and a TE is provided at a lower end of the skirt portion 3 via a breakable weakening portion 4. A band 5 is provided, and a plurality of flap pieces 6 that engage with a container opening (not shown) are formed on the inner surface of the TE band 5. The inner surface 7 of the skirt portion 3 is provided with a screw portion 8 that engages with a screw portion 21 provided on the container mouth portion 20. Also, on the inner surface side of the top plate portion 2,
An inner ring 9 that is inserted into the mouth of the container and holds the container in a sealed state is formed integrally with the cap shell.

【0017】図1及び図3に示す螺子部8は一条螺子で
あり、図3(A)に示すように上段の螺子山8a及び下
段の螺子山8bによって二重になっている部分を有して
いる。本発明のキャップにおいては、かかる螺子山8a
及び8bに切欠き10a及び10bが上下に同じ位置に
設けられ、この切欠き10a及び10bによって軸方向
の流通路11が形成されている。本発明においては、こ
の軸方向の流通路11の部分に溝14が形成され、洗浄
水の流量を増加させると共に、この溝14に沿って洗浄
水が流れるので、洗浄水が流れ易くなるのである。この
溝の深さは、キャップスカート部の肉厚の30%以下、
特に0.2乃至1.0mm程度であることが、キャップ
のスカート部内面及び天面の一部或いは容器口部の外周
面の洗浄を有効に行うと共にキャップの強度を維持する
ために好ましい。
The screw portion 8 shown in FIGS. 1 and 3 is a single-thread screw, and as shown in FIG. 3 (A), it has a doubled portion by an upper screw thread 8a and a lower screw thread 8b. ing. In the cap of the present invention, such a screw thread 8a
And 8b are provided with notches 10a and 10b at the same position vertically, and the notches 10a and 10b form a flow passage 11 in the axial direction. In the present invention, the groove 14 is formed in the portion of the flow passage 11 in the axial direction, the flow rate of the wash water is increased, and the wash water flows along the groove 14, so that the wash water easily flows. . The depth of this groove is 30% or less of the wall thickness of the cap skirt,
In particular, the thickness is preferably about 0.2 to 1.0 mm in order to effectively clean the inner surface of the skirt part of the cap and a part of the top surface or the outer peripheral surface of the container mouth and to maintain the strength of the cap.

【0018】図2及び図4に示すキャップは、キャップ
のスカート部3の内側面7が下方に向かって内径が大き
くなるようなテーパー状である以外は基本的な構造は図
1及び図3に示すキャップと同様である。図2から明ら
かな通り、スカート部内面に設けられた螺子山8と容器
口部に設けられた螺子山21との係合が下方において上
方よりも若干浅い係合になっているため、容器口部の螺
子山先端23とスカート部内面7によって形成される間
隙12或いはキャップの螺子山先端13と容器口部外周
面22によって形成される間隙15が下方に従って若干
広くなって、洗浄水の流出入を容易に行わうことが可能
になるのである。キャップスカート部内面のテーパー角
度は、軸線に対して0.5乃至5.0°程度であること
が、キャップスカート部内面及び天面の一部或いは容器
口部の外周面の洗浄を有効に行うと共にスカート部内面
に設けられた螺子山と容器口部に設けられた螺子山の係
合強度を維持するために好ましい。
The basic structure of the cap shown in FIGS. 2 and 4 is the same as that shown in FIGS. 1 and 3 except that the inner surface 7 of the skirt portion 3 of the cap is tapered so that the inner diameter increases downward. Similar to the cap shown. As apparent from FIG. 2, the engagement between the screw thread 8 provided on the inner surface of the skirt portion and the screw thread 21 provided on the container mouth portion is slightly shallower in the lower portion than in the upper portion. The gap 12 formed by the screw tip 23 of the portion and the inner surface 7 of the skirt or the gap 15 formed by the tip 13 of the screw of the cap and the outer peripheral surface 22 of the container mouth becomes slightly wider as it goes downward, and the inflow and outflow of washing water is increased. Can be done easily. The taper angle of the inner surface of the cap skirt is about 0.5 to 5.0 ° with respect to the axis, so that the inner surface of the cap skirt and a part of the top surface or the outer peripheral surface of the container mouth can be effectively cleaned. At the same time, it is preferable to maintain the engagement strength between the screw thread provided on the inner surface of the skirt portion and the screw thread provided on the container mouth portion.

【0019】図1乃至図4に示すキャップにおいて、T
Eバンド5に設けられた複数のフラップ片6は、切欠き
によって形成される軸方向の流通路11に相当する位置
には形成されていないことが特に好ましい。すなわち、
この流通路11の下方にフラップ片6が形成されていな
いことにより、流通路11がフラップ片の間16を通っ
てキャップの下端まで連なり、洗浄水の流出入が容易に
なるからである。
In the cap shown in FIGS. 1 to 4, T
It is particularly preferable that the plurality of flap pieces 6 provided on the E band 5 are not formed at positions corresponding to the axial flow passages 11 formed by the notches. That is,
Since the flap piece 6 is not formed below the flow passage 11, the flow passage 11 is connected to the lower end of the cap through the space 16 between the flap pieces, and the inflow and outflow of washing water is facilitated.

【0020】本発明においては、前述した通り、洗浄水
はTEバンドをつなぐブリッジ部間の開口部分から流入
させることが、高温水を使用せず、無菌充填容器等の耐
熱性の低い容器にも適用できるので好ましいが、勿論、
従来の洗浄方法のようにキャップスカート部上方或いは
頂板部周縁に切り込みを入れて高温の洗浄水を噴射して
流入させて洗浄する場合にも有効である。
In the present invention, as described above, the washing water can be made to flow from the opening between the bridge portions connecting the TE bands, but high temperature water is not used, and it can be used even in a container having low heat resistance such as an aseptic filling container. It is preferable because it can be applied, but of course,
It is also effective when a notch is made above the cap skirt portion or at the periphery of the top plate portion as in the conventional washing method, and high-temperature washing water is sprayed and made to flow in to perform washing.

【0021】本発明のキャップは、射出成形、圧縮成形
等従来公知の成形法により成形されるキャップに適用で
きるが、特に射出成形により、二次加工することなく成
形されるものに有効である。キャップの成形に用いるこ
とができる樹脂としては、従来、樹脂キャップに用いら
れていたすべてのものを使用することができる。例え
ば、ポリエチレン、アイソタクティクポリプロピレン、
エチレン−ポリプロピレン共重合体、ポリブテン−1、
エチレン−ブテン−1共重合体、プロピレン−ブテン−
1共重合体、エチレン−酢酸ビニル共重合体等のオレフ
ィン系樹脂や、ポリスチレン、スチレン−ブタジエン共
重合体、ABS樹脂或いはポリカーボネート等の合成樹
脂を挙げることができる。
The cap of the present invention can be applied to a cap molded by a conventionally known molding method such as injection molding or compression molding, but is particularly effective for a cap molded by injection molding without secondary processing. As the resin that can be used for molding the cap, any resin that has been conventionally used for resin caps can be used. For example, polyethylene, isotactic polypropylene,
Ethylene-polypropylene copolymer, polybutene-1,
Ethylene-butene-1 copolymer, propylene-butene-
Examples thereof include olefin resins such as 1-copolymer and ethylene-vinyl acetate copolymer, and synthetic resins such as polystyrene, styrene-butadiene copolymer, ABS resin and polycarbonate.

【0022】[0022]

【発明の効果】本発明によれば、頂板部と、該頂板部周
縁から垂下し、容器口部に係合する螺子山を内面に備え
たスカート部から成り、該スカート部内面には螺子山を
周方向に分割する切欠きが形成され、該切欠き及び上下
の螺子山の間が洗浄液の流通路を形成するキャップにお
いて、(1)前記切欠きにより形成される軸方向の流通
路に、軸方向の溝が形成されていること、及び/又は
(2)前記スカート部の内面が下方に向かって内径が大
きくなるようなテーパー状であることにより、洗浄水を
効果的に流通すると共に、洗浄水の流量を増加させるこ
とができ、キャップ内面及び容器口部外周面を効率的に
洗浄することが可能となる。また洗浄水の流出入が効果
的でキャップ内の洗浄液の残存が有効に防止される。更
に無菌充填用容器等の耐熱性の低い容器に適用された場
合にも確実に洗浄可能なキャップを提供することができ
た。
According to the present invention, there is provided a top plate portion and a skirt portion having an inner surface provided with a screw thread hanging down from a peripheral edge of the top plate portion and engaging with a container mouth portion. In a cap in which a notch that divides in the circumferential direction is formed, and the notch and the upper and lower screw threads form a passage for the cleaning liquid, (1) in the axial passage formed by the notch, By forming the groove in the axial direction and / or (2) the inner surface of the skirt portion is tapered so that the inner diameter increases downward, the cleaning water is effectively circulated, and The flow rate of cleaning water can be increased, and the inner surface of the cap and the outer peripheral surface of the container mouth can be efficiently cleaned. In addition, the inflow and outflow of cleaning water is effective, and the remaining cleaning liquid in the cap is effectively prevented. Further, it was possible to provide a cap that can be reliably washed even when applied to a container having low heat resistance such as a container for aseptic filling.

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

【図1】本発明の第一の態様を採用したキャップの一例
が容器口部と螺合した状態を示す図であり、右半分が側
面図、左半分が側断面図である。
FIG. 1 is a diagram showing a state in which an example of a cap adopting the first aspect of the present invention is screwed into a container mouth, a right half is a side view, and a left half is a side sectional view.

【図2】本発明の第二の態様を採用したキャップの一例
が容器口部と螺合した状態を示す図であり、右半分が側
面図、左半分が側断面図である。
FIG. 2 is a view showing a state in which an example of a cap adopting the second aspect of the present invention is screwed with a container mouth, a right half is a side view and a left half is a side sectional view.

【図3】本発明の第一の態様を採用したキャップの一例
を示す図であり、(A)は側断面図、(B)は底面図で
ある。
FIG. 3 is a diagram showing an example of a cap adopting the first aspect of the present invention, (A) is a side sectional view, and (B) is a bottom view.

【図4】本発明の第二の態様を採用したキャップの一例
を示す図であり、(A)は側断面図、(B)は底面図で
ある。
FIG. 4 is a view showing an example of a cap adopting the second aspect of the present invention, (A) is a side sectional view, and (B) is a bottom view.

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3E084 AA04 AA12 AB01 BA01 CA01 DA01 DB05 DB12 FA09 FB04 GA01 GB01 GB08 HA03 HB02 HD01 HD04 KA13 KA15 KB01   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E084 AA04 AA12 AB01 BA01 CA01                       DA01 DB05 DB12 FA09 FB04                       GA01 GB01 GB08 HA03 HB02                       HD01 HD04 KA13 KA15 KB01

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 頂板部と、該頂板部周縁から垂下し、容
器口部に係合する螺子山を内面に備えたスカート部から
成り、該スカート部内面には螺子山を周方向に分割する
切欠きが形成され、該切欠き及び上下の螺子山の間が洗
浄液の流通路を形成するキャップにおいて、 前記切欠きにより形成される軸方向の流通路に、軸方向
の溝が形成されていることを特徴とするキャップ。
1. A top plate portion and a skirt portion having a screw thread hanging down from a peripheral edge of the top plate portion and engaging with a container mouth portion provided on an inner surface thereof. The screw thread is circumferentially divided on the inner surface of the skirt portion. In a cap in which a notch is formed and between the notch and the upper and lower screw threads forms a flow passage for the cleaning liquid, an axial groove is formed in the axial flow passage formed by the notch. A cap characterized by that.
【請求項2】 頂板部と、該頂板部周縁から垂下し、容
器口部に係合する螺子山を内面に備えたスカート部から
成り、該スカート部内面には螺子山を周方向に分割する
切欠きが形成され、該切欠き及び上下の螺子山の間が洗
浄液の流通路を形成するキャップにおいて、 前記スカート部の内面が下方に向かって内径が大きくな
るようなテーパー状であることを特徴とするキャップ。
2. A top plate part and a skirt part having a screw thread hanging down from the periphery of the top plate part and engaging with the container mouth part provided on the inner surface, and the screw thread is circumferentially divided on the inner surface of the skirt part. In a cap in which a notch is formed and between the notch and the upper and lower screw threads forms a flow passage for the cleaning liquid, the inner surface of the skirt portion is tapered so that the inner diameter increases downward. And the cap.
【請求項3】 頂板部と、該頂板部周縁から垂下し、容
器口部に係合する螺子山を内面に備えたスカート部から
成り、該スカート部内面には螺子山を周方向に分割する
切欠きが形成され、該切欠き及び上下の螺子山の間が洗
浄液の流通路を形成するキャップにおいて、 前記切欠きにより形成される軸方向の流通路には、軸方
向の溝が形成されていると共に、前記スカート部の内側
面が下方に向かって内径が大きくなるようなテーパー状
であることを特徴とするキャップ。
3. A top plate part and a skirt part having a screw thread hanging down from the peripheral edge of the top plate part and engaging with a container mouth part provided on the inner surface. The screw thread is circumferentially divided on the inner surface of the skirt part. In a cap in which a notch is formed and between the notch and the upper and lower screw threads forms a flow passage for the cleaning liquid, an axial groove is formed in the axial flow passage formed by the notch. The cap is characterized in that the inner surface of the skirt is tapered so that the inner diameter increases downward.
【請求項4】 前記キャップが射出成形により成形さ
れ、前記スカート部下端に破断可能なブリッジ部を介し
て一体に成形されるタンパーエビデントバンドを有する
キャップであって、洗浄水が該ブリッジ部間の開口から
流入する請求項1乃至3の何れかに記載のキャップ。
4. A cap having a tamper-evidence band formed integrally by injection molding of the cap at the lower end of the skirt via a rupturable bridge part, wherein the cleaning water is between the bridge parts. The cap according to any one of claims 1 to 3, which flows in through an opening.
【請求項5】 前記破断可能なブリッジ部間の開口下端
が径方向外方から内方に向けて上方に傾斜している請求
項4記載のキャップ。
5. The cap according to claim 4, wherein the lower end of the opening between the rupturable bridge portions is inclined upward from the outside toward the inside in the radial direction.
JP2002063825A 2002-03-08 2002-03-08 Cap with excellent cleanability Expired - Fee Related JP4205883B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002063825A JP4205883B2 (en) 2002-03-08 2002-03-08 Cap with excellent cleanability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002063825A JP4205883B2 (en) 2002-03-08 2002-03-08 Cap with excellent cleanability

Publications (2)

Publication Number Publication Date
JP2003267408A true JP2003267408A (en) 2003-09-25
JP4205883B2 JP4205883B2 (en) 2009-01-07

Family

ID=29196906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002063825A Expired - Fee Related JP4205883B2 (en) 2002-03-08 2002-03-08 Cap with excellent cleanability

Country Status (1)

Country Link
JP (1) JP4205883B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015186153A1 (en) * 2014-06-02 2015-12-10 株式会社トレジャー Capped container

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61232163A (en) * 1985-01-23 1986-10-16 アストラ プラステイ−ク Bottle closing device with screwing cap
JPH0182152U (en) * 1987-11-20 1989-06-01
JP2000327015A (en) * 1999-03-15 2000-11-28 Paio:Kk Cap and manufacture of cap

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61232163A (en) * 1985-01-23 1986-10-16 アストラ プラステイ−ク Bottle closing device with screwing cap
JPH0182152U (en) * 1987-11-20 1989-06-01
JP2000327015A (en) * 1999-03-15 2000-11-28 Paio:Kk Cap and manufacture of cap

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015186153A1 (en) * 2014-06-02 2015-12-10 株式会社トレジャー Capped container
JPWO2015186153A1 (en) * 2014-06-02 2017-04-20 株式会社トレジャー Container with cap
US9764877B2 (en) 2014-06-02 2017-09-19 Tr Holdings Inc. Capped container

Also Published As

Publication number Publication date
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