JP2010137878A - Cap made of synthetic resin - Google Patents

Cap made of synthetic resin Download PDF

Info

Publication number
JP2010137878A
JP2010137878A JP2008314215A JP2008314215A JP2010137878A JP 2010137878 A JP2010137878 A JP 2010137878A JP 2008314215 A JP2008314215 A JP 2008314215A JP 2008314215 A JP2008314215 A JP 2008314215A JP 2010137878 A JP2010137878 A JP 2010137878A
Authority
JP
Japan
Prior art keywords
tab
cap
connecting portion
synthetic resin
outer cylinder
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
JP2008314215A
Other languages
Japanese (ja)
Other versions
JP5303253B2 (en
Inventor
Hirotaka Hori
裕貴 堀
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.)
Mikasa Sangyo Co Ltd
Original Assignee
Mikasa Sangyo 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 Mikasa Sangyo Co Ltd filed Critical Mikasa Sangyo Co Ltd
Priority to JP2008314215A priority Critical patent/JP5303253B2/en
Publication of JP2010137878A publication Critical patent/JP2010137878A/en
Application granted granted Critical
Publication of JP5303253B2 publication Critical patent/JP5303253B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Closures For Containers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap made of a synthetic resin, which is capped over the mouth of a container, the cap being configured so that one easily pulls apart a connecting portion, which circumferentially connects a tab and an outer cylindrical portion, and that a damage due to capping over the mouth of the bottle is prevented. <P>SOLUTION: The cap includes: the tab 13 that circumferentially extends from the outer cylindrical portion 4 of a cap body 2 and is continuous with a weakened portion; and the connecting portion 15 in the form of a thin wall, which circumferentially connects the leading end 13a of the tab 13 and the outer cylindrical portion 4. The connecting portion 15 includes a curved portion 15a, which curves in the lengthwise direction. The length of the connecting portion 15 when the curved portion 15a is stretched is made longer than the length L of the imaginary arc formed by its being extended along the circumference of the peripheral face of the outer cylindrical portion 4 between the leading end of the tab 13 and the outer cylindrical portion 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、瓶等の容器口部に打栓装着される合成樹脂製キャップに関するものである。   The present invention relates to a synthetic resin cap that is plugged into a container mouth such as a bottle.

近年、資源の有効利用や公害防止の観点から、使用済みの容器は、回収し種々の製品の原料として再利用、所謂リサイクルされている。   In recent years, from the viewpoint of effective use of resources and prevention of pollution, used containers are collected and reused as raw materials for various products, so-called recycling.

容器口部へ打栓装着されるキャップは通常合成樹脂製であるが、それが装着される容器が瓶等のガラス製である場合、即ち、キャップが容器と異なる材質のものである場合、容器のリサイクルのためには、容器からキャップを分離する必要がある。   The cap that is plugged into the container mouth is usually made of synthetic resin, but if the container to which it is attached is made of glass such as a bottle, that is, if the cap is made of a material different from the container, the container In order to recycle, it is necessary to separate the cap from the container.

容器口部へ打栓装着されるキャップは、容器口部と嵌合する部分の嵌合力を弱めれば、容器からの分離が容易となる。そこで、容器口部へ打栓装着されるキャップにおいて、容器口部へ嵌合する部分を内周に有するキャップ本体の外筒部に弱化部とそれに連続するタブを設け、タブを摘んで引っ張っり、弱化部を引き裂くことで、キャップ本体の外筒部の容器口部への嵌合力を弱め、容器からの分離が容易にできる様にしたものが従来より用いられている。   The cap attached to the container mouth portion can be easily separated from the container if the fitting force of the portion that fits into the container mouth portion is weakened. Therefore, in the cap that is plugged into the container mouth, a weakened part and a continuous tab are provided in the outer cylinder part of the cap body that has a portion that fits into the container mouth on the inner periphery, and the tab is picked and pulled. Conventionally, the weakened portion is torn so that the fitting force of the outer cylinder portion of the cap body to the container mouth portion is weakened so that the cap body can be easily separated from the container.

特開２００１−１４６２５０号公報（特許文献１）に記載のものはその様なキャップの一例であるが、同公報に記載のキャップには、タブの先端と外筒部との間に両者を周方向に連結する繋ぎ部（ブリッジ）が外筒部外周の円周上にそれに沿って延在して設けられている。同公報に記載のキャップの様に、タブの先端と外筒部との間に繋ぎ部が設けられていると、容器口部へ打栓装着されるキャップにおいて、キャップの製造ラインでタブが何かに引っ掛かったり、或いは絡んだりするのを防ぐことができ、又、製造後、流通から消費に至るまで、誤ってタブが引っ張られ、外筒部が引き裂かれるのを防ぐことができるとの利点がある。   The one described in Japanese Patent Laid-Open No. 2001-146250 (Patent Document 1) is an example of such a cap. However, in the cap described in the same publication, both of them are provided between the tip of the tab and the outer cylinder portion. A connecting portion (bridge) connected in the direction is provided extending along the circumference of the outer periphery of the outer cylinder portion. As in the cap described in the publication, when a connecting portion is provided between the tip of the tab and the outer cylinder portion, what is the tab on the cap production line in the cap that is plugged into the container mouth portion? It is possible to prevent the tab from being caught or entangled, and the advantage that it is possible to prevent the tab from being accidentally pulled and the outer tube portion from being torn from manufacturing to distribution to consumption. There is.

特開２００１−１４６２５０号公報JP 2001-146250 A

容器口部に打栓装着されるキャップにおいては、打栓によりキャップ本体の外筒部が容器口部に嵌合する際、外筒部内周の環状凸部が容器口部外周の環状凸部を乗り越えることから、打栓の際、外筒部の径は一時的に拡大することとなる。前記公報に記載のキャップの様に、外筒部にタブの先端との周方向の繋ぎ部があるものの場合、打栓の際、外筒部の径が拡大する時に、繋ぎ部は外筒部により周方向に引っ張られることとなるが、同キャップにおいては、繋ぎ部が外筒部外周の円周上にそれに沿って延在して設けられており、外筒部の径の拡大により、繋ぎ部は直ちに伸びきった状態となり、繋ぎ部に外筒部による周方向の引っ張り力に耐える破断強度がないと、繋ぎ部は破断することとなる。そこで、繋ぎ部の破断強度を高くして、繋ぎ部の破断を防ぐことが考えられるが、キャップ本体を容器から容易に分離できる様にするために、繋ぎ部は人が手指を使って容易に引きちぎることができるものである必要があり、繋ぎ部の破断強度は高くすることは、引きちぎりを困難なものとするので好ましくない。   In caps that are plugged into the container mouth portion, when the outer cylinder portion of the cap body is fitted into the container mouth portion by the stopper, the annular convex portion on the inner periphery of the outer cylinder portion is replaced with the annular convex portion on the outer periphery of the container mouth portion Since it gets over, the diameter of an outer cylinder part will temporarily expand in the case of a stopper. In the case where the outer cylinder portion has a circumferential connecting portion with the tip of the tab like the cap described in the above publication, when the diameter of the outer cylindrical portion is enlarged at the time of plugging, the connecting portion is the outer cylindrical portion. However, in the same cap, the connecting part is provided extending along the circumference of the outer cylinder part outer periphery, and the connecting part is expanded by increasing the diameter of the outer cylinder part. The part immediately extends, and the joint part will be broken if the joint part does not have a breaking strength that can withstand the pulling force in the circumferential direction by the outer tube part. Therefore, it is conceivable to increase the breaking strength of the joint part to prevent the joint part from being broken, but in order to make it easy to separate the cap body from the container, the joint part can be easily used by human hands. It is necessary to be able to be torn off, and it is not preferable to increase the breaking strength of the joining portion because it makes the tearing difficult.

つまり、前記公報に記載のキャップの様に、外筒部にタブの先端との周方向の繋ぎ部があり、その繋ぎ部が外筒部外周の円周上にそれに沿って延在しているものにおいては、繋ぎ部を人が容易に引きちぎることができるものにすると、打栓時の外筒部の径の拡大による繋ぎ部の破断が生じるのを防ぐのが困難で、特に、気温の低い環境下（冬季等）で打栓する場合や、高速で打栓する場合等、破断が生じ易い条件下で打栓する場合に、繋ぎ部の破断が生じるのを防ぐのが困難であった。   That is, like the cap described in the above publication, the outer cylinder portion has a circumferential connecting portion with the tip of the tab, and the connecting portion extends along the circumference of the outer cylindrical portion outer periphery. In the case of a thing, it is difficult to prevent the breakage of the joint part due to the expansion of the diameter of the outer cylindrical part at the time of plugging if the joint part can be easily torn by a person, especially at low temperatures. It has been difficult to prevent breakage of the joint portion when plugging under conditions where breakage is likely to occur, such as when plugging in an environment (in winter, etc.) or at a high speed.

この発明は、前記の事情に鑑み、容器口部へ打栓装着される合成樹脂製のキャップにおいて、容器口部と嵌合する外筒部にタブを有すると共に、そのタブと外筒部とを周方向に連結する繋ぎ部を有していても、その繋ぎ部を人が容易に引きちぎることができるものとしつつ、打栓による繋ぎ部の破断が生じるのを有効に防ぐことができるものとすることを目的とする。   In view of the above circumstances, the present invention has a cap made of a synthetic resin that is plugged into the container mouth portion, and has a tab on the outer cylinder portion that fits into the container mouth portion, and the tab and the outer cylinder portion. Even if it has a connecting portion that is connected in the circumferential direction, it is possible to effectively prevent the connecting portion from being broken by a stopper while allowing the person to easily tear the connecting portion. For the purpose.

この発明は、容器口部と嵌合する嵌合部を内周面に有すると共に、弱化部を有する外筒部をキャップ本体に備え、該外筒部に周方向に延在して該弱化部に連続するタブと、該タブの先端と該外筒部との間を周方向に連結する薄肉の繋ぎ部が設けられた合成樹脂製のキャップであって、該繋ぎ部はその長さ方向において曲がって形成された曲成部を含み、該曲成部の伸展時における該繋ぎ部の長さが、該タブの先端と該外筒部との間に該外筒部の外周面の円周に沿って延長して形成される仮想の円弧の長さよりも長いことを特徴とする合成樹脂製のキャップである。   The present invention has a fitting portion for fitting with a container mouth portion on an inner peripheral surface, and an outer cylinder portion having a weakening portion is provided in a cap body, and extends in the circumferential direction to the outer cylinder portion so that the weakening portion is provided. A synthetic resin cap provided with a continuous tab, and a thin-walled connecting portion for connecting the tip of the tab and the outer tube portion in the circumferential direction, the connecting portion being in the length direction thereof A bent portion formed by bending, and the length of the connecting portion when the bent portion is extended is the circumference of the outer peripheral surface of the outer cylindrical portion between the tip of the tab and the outer cylindrical portion. It is a synthetic resin cap characterized by being longer than the length of a virtual arc formed by extending along the axis.

又、この発明は、該繋ぎ部の該曲成部が略Ｕ字状又は略弓状に湾曲していることを特徴とする合成樹脂製のキャップである。   Further, the present invention is a synthetic resin cap characterized in that the bent portion of the joint portion is curved in a substantially U shape or a substantially arc shape.

又、この発明は、該繋ぎ部の該曲成部が該キャップ本体内方に凹んでいることを特徴とする合成樹脂製のキャップである。   Further, the present invention is a synthetic resin cap characterized in that the bent portion of the connecting portion is recessed inward of the cap body.

又、この発明は、該タブは該外筒部の外周面に凹設された円弧状凹部の外方に間隙を介して設けられるものであり、該タブの内面と該凹部の外面とを連結する補強連結部が設けられていることを特徴とする合成樹脂製のキャップである。   Further, according to the present invention, the tab is provided on the outer side of the arc-shaped recess provided in the outer peripheral surface of the outer cylinder portion via a gap, and the inner surface of the tab and the outer surface of the recess are connected to each other. It is a synthetic resin cap provided with a reinforcing connecting portion.

又、この発明は、該補強連結部は、該タブの先端と該外筒部とを周方向に連結する該繋ぎ部に近接すると共に、該タブの先端側に位置して設けられていることを特徴とする合成樹脂製のキャップである。   In the present invention, the reinforcing connecting portion is provided close to the connecting portion for connecting the tip end of the tab and the outer tube portion in the circumferential direction, and is provided at the tip end side of the tab. It is a cap made of synthetic resin characterized by the following.

この発明によれば、タブの先端と外筒部との間を周方向に連結する繋ぎ部がその長さ方向において曲がって形成された曲成部を含み、曲成部の伸展時の繋ぎ部の長さが、タブの先端と外筒部との間に外筒部の外周面の円周に沿って延長して形成される仮想の円弧（劣弧）の長さよりも長いものとなっており、即ち、打栓時の外筒部の径の拡大による繋ぎ部に対する周方向の引っ張りに対して、曲成部による伸び代を有するものとなっており、繋ぎ部が薄肉で、人が手指で引きちぎり易い程に破断強度の低いものであっても、打栓による破断が繋ぎ部に生じるのを防ぐことができる。   According to the present invention, the connecting portion that connects the tip end of the tab and the outer cylinder portion in the circumferential direction includes the bent portion formed by bending in the length direction, and the connecting portion when the bent portion is extended. Is longer than the length of a virtual arc (subarc) formed by extending along the circumference of the outer peripheral surface of the outer cylinder portion between the tip of the tab and the outer cylinder portion. In other words, it has a margin of elongation due to the bent portion with respect to the pulling in the circumferential direction with respect to the connecting portion due to the expansion of the diameter of the outer cylindrical portion at the time of plugging. Even if the breaking strength is so low that it can be easily torn off, it is possible to prevent breakage due to the stopper from occurring in the joint portion.

即ち、この発明によれば、容器口部へ打栓装着される合成樹脂製のキャップにおいて、容器口部と嵌合する外筒部にタブを有すると共に、そのタブと外筒部とを周方向に連結する繋ぎ部を有していても、その繋ぎ部を人が容易に引きちぎることができるものとしつつ、打栓による繋ぎ部の破断が生じるのを有効に防ぐことができるものとすることができる。   That is, according to the present invention, in the cap made of synthetic resin that is plugged into the container mouth portion, the outer cylinder portion that fits into the container mouth portion has the tab, and the tab and the outer cylinder portion are circumferentially connected. Even if it has a connecting part to be connected to, the person can easily tear off the connecting part, and it is possible to effectively prevent breakage of the connecting part due to the stopper. it can.

更に、この発明によれば、タブの先端と外筒部とを周方向に連結する繋ぎ部の曲成部をキャップ本体内方に凹んでいるものとすることで、繋ぎ部が曲成部を含むものであっても、キャップの製造ラインでタブが何かに引っ掛かったり、或いは絡んだりするのを防ぐことができ、又、製造後、流通から消費に至るまで、誤ってタブが引っ張られ、外筒部が引き裂かれるのを防ぐことができる。   Further, according to the present invention, the bent portion of the connecting portion that connects the tip end of the tab and the outer cylinder portion in the circumferential direction is recessed inwardly of the cap main body, so that the connecting portion changes the bent portion. Even if it is included, it can prevent the tab from being caught or entangled in the cap production line, and the tab is accidentally pulled from production to distribution until consumption, It is possible to prevent the outer cylinder portion from being torn.

更に、この発明によれば、タブは外筒部の外周面に凹設された円弧状凹部の外方に間隙を介して設けられているものであり、そのタブの内面と円弧状凹部の外面とを連結する補強連結部が設けられているものとすることで、繋ぎ部の打栓による破断をより防ぐことができる。   Further, according to the present invention, the tab is provided on the outer side of the arc-shaped recess provided in the outer peripheral surface of the outer cylinder portion via the gap, and the inner surface of the tab and the outer surface of the arc-shaped recess It is possible to further prevent breakage due to the stopper of the connecting portion by providing the reinforcing connecting portion that connects the two.

更に、この発明によれば、補強連結部を、タブの先端と外筒部とを周方向に連結する繋ぎ部に近接すると共に、タブの先端側に位置して設けられているものとすることで、繋ぎ部の打栓による破断を更により防ぐことができる。   Further, according to the present invention, the reinforcing connecting portion is provided close to the connecting portion for connecting the tip end of the tab and the outer tube portion in the circumferential direction, and is provided on the tip end side of the tab. Thus, it is possible to further prevent breakage due to the plugging of the connecting portion.

この発明の実施の形態を図１乃至５に基づき説明する。尚、図１はこの発明のキャップ本体の平面部分拡大図であり、図２は同上の底面部分拡大図であり、図３は同上の正面図であり、図４は同上の縦断面図であり、図５は同上のキャップ本体に蓋体を装着した状態における正面図であり、図６は同上のキャップを容器口部へ装着した状態における一部断面正面図である。   An embodiment of the present invention will be described with reference to FIGS. 1 is a partially enlarged plan view of the cap body of the present invention, FIG. 2 is a partially enlarged bottom view of the same, FIG. 3 is a front view of the same, and FIG. 4 is a longitudinal sectional view of the same. FIG. 5 is a front view of the same cap body with the lid mounted thereon, and FIG. 6 is a partial cross-sectional front view of the same cap attached to the container mouth.

合成樹脂性のキャップ１は、容器口部Ｙ１に打栓装着されるキャップ本体２とそのキャップ本体２に螺着される蓋体３とからなる。即ち、キャップ１は打栓装着式のキャップであると共に、いわゆるスクリュー式のキャップである。尚、この発明は、当該スクリュー式のキャップに適用することができるだけでなく、キャップ本体と蓋体とをヒンジにより連結してなるいわゆるヒンジ式のキャップにも適用することもできる。   The synthetic resin cap 1 includes a cap main body 2 that is plugged into the container mouth portion Y1 and a lid 3 that is screwed to the cap main body 2. That is, the cap 1 is a cap-mounted cap and a so-called screw-type cap. The present invention can be applied not only to the screw-type cap but also to a so-called hinge-type cap in which a cap body and a lid are connected by a hinge.

キャップ本体２は外筒部４を備え、その内周面に容器口部Ｙ１の外周面に設けられた嵌合部Ｙ２と嵌合する嵌合部５が設けられている。キャップ本体２の嵌合部５は環状の嵌合凸部６とその上方の嵌合凹部７とを含み、容器口部Ｙ１の嵌合部Ｙ２は環状の嵌合凸部Ｙ３とその下方の嵌合凹部Ｙ４とを含んでおり、キャップ本体２側の嵌合部５と容器口部キャップ本体２側の嵌合凸部６と容器口部Ｙ１側の嵌合凹部Ｙ４とが嵌合し、キャップ本体２側の嵌合凹部７と容器口部Ｙ１側の嵌合凸部Ｙ３とが嵌合することで、キャップ本体２側の嵌合部５と容器口部Ｙ１側の嵌合部Ｙ２とが嵌合する様になっている。   The cap main body 2 includes an outer cylinder portion 4, and a fitting portion 5 that fits with a fitting portion Y <b> 2 provided on the outer peripheral surface of the container mouth portion Y <b> 1 is provided on the inner peripheral surface thereof. The fitting part 5 of the cap body 2 includes an annular fitting convex part 6 and a fitting concave part 7 above the annular fitting convex part 6, and the fitting part Y2 of the container mouth part Y1 is fitted with the annular fitting convex part Y3 and below it. A fitting recess 5 on the cap body 2 side, a fitting convex part 6 on the container mouth cap body 2 side, and a fitting recess Y4 on the container mouth part Y1 side. By fitting the fitting recess 7 on the main body 2 side and the fitting convex portion Y3 on the container mouth Y1 side, the fitting portion 5 on the cap main body 2 side and the fitting portion Y2 on the container mouth Y1 side are formed. It is designed to fit.

キャップ本体２の外筒部４はその外周面上に外方に突出する環状状段部８を有している。外筒部４の内周面に設けられる嵌合凸部６は、この環状段部８の部分の内側に位置して設けられている。又、環状段部８の上面８ａにはキャップ本体２に螺着される蓋体３のスカート部９の下端が当接する様になっている。尚、キャップ本体２において、２１は外筒部４の天面を覆う天壁、２２は蓋体３が螺着される螺着筒、２３は螺着筒２２の内側に設けられた注出筒、２４は注出筒２３の内側に設けられたプルリング、２５は天壁２１の下面に外筒部４に対向して設けられた内筒部である。   The outer cylinder portion 4 of the cap body 2 has an annular step portion 8 protruding outward on the outer peripheral surface thereof. The fitting convex portion 6 provided on the inner peripheral surface of the outer cylindrical portion 4 is provided inside the annular step portion 8. The lower end of the skirt portion 9 of the lid body 3 screwed to the cap body 2 is in contact with the upper surface 8a of the annular step portion 8. In the cap body 2, 21 is a top wall that covers the top surface of the outer cylinder portion 4, 22 is a screwed cylinder to which the lid 3 is screwed, and 23 is a dispensing cylinder provided inside the screwed cylinder 22. , 24 is a pull ring provided inside the pouring cylinder 23, and 25 is an inner cylinder part provided on the lower surface of the top wall 21 so as to face the outer cylinder part 4.

外筒部４の内周面には線状に弱化された弱化部１０が設けられている。弱化部１０は、縦方向弱化部１１と周方向弱化部１２とからなり、縦方向弱化部１１が環状段部８の部分の内側に嵌合凸部６と交差して、それを分断する様に設けられ、周方向弱化部１２が環状段部８の上面８ａと略同じ高さに位置して設けられている。尚、縦方向弱化部１１は、一端で周方向弱化部１２と連続し、他端が環状段部８の下端近傍に至るものとなっており、横に略Ｖ字状に連結される上側傾斜弱化部１１ａと下側傾斜弱化部１１ｂからなるものとなっており、上側傾斜弱化部１１ａと下側弱化部１１ｂとの連結部尖端１１ｃの位置が環状段部８の高さ方向において嵌合凸部６の頂部（最も突出する部分）よりも高い位置に位置するものとなっており、更に上側弱化部１１ａと下側弱化部１１ｂとの連結部尖端１１ｃが後記するタブ１３側に向くものとなっている。   A weakened portion 10 weakened linearly is provided on the inner peripheral surface of the outer cylinder portion 4. The weakening part 10 consists of the longitudinal direction weakening part 11 and the circumferential direction weakening part 12, and the vertical direction weakening part 11 cross | intersects the fitting convex part 6 inside the part of the annular step part 8, and divides it. The circumferential weakened portion 12 is provided at substantially the same height as the upper surface 8 a of the annular step portion 8. In addition, the longitudinal direction weakening part 11 is connected to the circumferential direction weakening part 12 at one end, and the other end reaches the vicinity of the lower end of the annular step part 8, and is an upper side slope connected in a substantially V shape horizontally. It consists of a weakened portion 11a and a lower inclined weakened portion 11b, and the position of the connecting portion tip 11c between the upper inclined weakened portion 11a and the lower weakened portion 11b is a fitting convex in the height direction of the annular stepped portion 8. It is located at a position higher than the top part (the most protruding part) of the part 6, and further, the connecting part point 11c between the upper weakened part 11a and the lower weakened part 11b faces the tab 13 side described later. It has become.

外筒部４には、その周方向に延在する円弧状のタブ１３が環状段部８の部分に設けられており、具体的には、円弧状のタブ１３は、環状段部８の外周面に周方向に円弧状に凹設された円弧状凹部１４に環状段部８からそれと連続してその外周面に沿って周方向に延在すると共に、円弧状凹部１４の外側に円弧状の間隙１４ｂを介して設けられている。更に、タブ１３は、その基端側１３ｂが付け根となって環状段部８と一体であると共に、その基端側１３ｂにおいて弱化部１０の縦方向弱化部１１に連続している。尚、タブ１３の内面１３ｄには、その高さ方向に延在する複数の突条１３ｃがタブ１３を摘んで引っ張る際の滑りとめ用に設けられている。   The outer cylindrical portion 4 is provided with an arc-shaped tab 13 extending in the circumferential direction at a portion of the annular step portion 8. Specifically, the arc-shaped tab 13 is formed on the outer periphery of the annular step portion 8. An arcuate recess 14 that is recessed in a circumferential direction on the surface extends from the annular step 8 in the circumferential direction along the outer circumferential surface of the annular recess 8, and has an arcuate shape outside the arcuate recess 14. It is provided via a gap 14b. Further, the tab 13 is integral with the annular step portion 8 with the base end side 13b as a root, and continues to the longitudinal direction weakening portion 11 of the weakening portion 10 on the base end side 13b. A plurality of protrusions 13c extending in the height direction are provided on the inner surface 13d of the tab 13 for slipping when the tab 13 is picked and pulled.

タブ１３の先端１３ａと外筒部４の環状段部８とは薄肉の繋ぎ部１５によって連結されている。繋ぎ部１５は、具体的には、タブ１３の先端１３ａとそれに対向する環状段部８の円弧状凹部１４に臨む端壁８ｂとを連結し、円弧状凹部１４の外面側に向けて凹む様に、その長さ方向において略Ｕ字状に湾曲した曲成部１５ａを含んでいる。更に、繋ぎ部１５は、曲成部１５ａを含むことで、曲成部１５ａの伸展時のその長さが、タブ１３の先端１３ａと外筒部４の環状段部８の端壁８ｂとの間に外筒部４の環状段部８の外周面の円周に沿って延長して形成される仮想の円弧Ｌの長さよりも長いものとなっており、即ち、曲成部１５ａによる長さ方向の伸び代を有するものとなっている。この繋ぎ部１５の曲成部１５ａは、繋ぎ部１５に長さ方向の伸び代を持たせるためのものであり、そのために長さ方向に曲がって形成されているものであればよく、本実施の形態の様な略Ｕ字状のものに限らず、略弓状のものでもよいし、撓む様に曲がって形成したものでもよいし、略Ｖ字状に鋭角に折曲させたものでもよいし、更にはそれらを長さ方向に連設したものにしてもよい。尚、タブ１３の先端１３ａと環状段部８の端壁８ｂとの間において、繋ぎ部１５の上方は開放されており、繋ぎ部１５の上方には上方に向けて開口する上部開放間隙１６が形成されており、この間隙１６から指先を入れる様にして、タブ１３の先端１３ａ側を摘むことができる様になっている。   The tip 13a of the tab 13 and the annular step portion 8 of the outer cylinder portion 4 are connected by a thin connecting portion 15. Specifically, the connecting portion 15 connects the tip 13a of the tab 13 and the end wall 8b facing the arc-shaped recess 14 of the annular step portion 8 facing the tab 13 so as to be recessed toward the outer surface side of the arc-shaped recess 14. In addition, a bent portion 15a curved in a substantially U shape in the length direction is included. Further, since the connecting portion 15 includes the bent portion 15a, the length when the bent portion 15a is extended is such that the tip 13a of the tab 13 and the end wall 8b of the annular step portion 8 of the outer cylinder portion 4 are connected. It is longer than the length of the virtual arc L formed by extending along the circumference of the outer peripheral surface of the annular step portion 8 of the outer cylinder portion 4, that is, the length by the bent portion 15 a. Has a margin of elongation in the direction. The bent portion 15a of the connecting portion 15 is provided to allow the connecting portion 15 to have an extension allowance in the length direction. For this purpose, the bent portion 15a may be formed so as to be bent in the length direction. It is not limited to a substantially U-shaped shape such as that of the above-mentioned form, it may be a substantially arcuate shape, may be bent so as to be bent, or may be bent substantially at an acute angle in a V-shape. Alternatively, they may be provided continuously in the length direction. In addition, the upper part of the connection part 15 is open | released between the front-end | tip 13a of the tab 13, and the end wall 8b of the cyclic | annular step part 8, and the upper open space | gap 16 opened upwards above the connection part 15 is provided. It is formed, and the tip 13a side of the tab 13 can be gripped by inserting a fingertip through the gap 16.

前記の様に、この発明のキャップ１においては、タブ１３の先端１３ａと外筒部４の環状段部８の端壁８ｂとの間を周方向に連結する繋ぎ部１５がその長さ方向において曲がって形成された曲成部１５ａを含み、曲成部１５ａの伸展時における繋ぎ部１５の長さが、タブ１３の先端１３ａと外筒部４の環状段部８の端壁８ｂとの間に外筒部４の環状段部８の外周面の円周に沿って延長して形成される仮想の円弧Ｌの長さよりも長いものとなっており、即ち、曲成部１５による長さ方向の伸び代を有するものとなっており、キャップ本体２を容器口部Ｙ１へ打栓装着する際に、キャップ本体２における外筒部４の環状段部８の内周面に設けられている嵌合凸部６が容器口部Ｙ１側の嵌合凸部Ｙ３を乗り越える時に、環状段部８がその径を拡大させることにより、繋ぎ部１５に対して周方向の引っ張り力が作用したとしても、その力を曲成部１５ａが伸展することで吸収することができるので、繋ぎ部１５が薄肉で、人が手指で引きちぎり易い程度に破断強度の低いものであっても、繋ぎ部１５に破断が生じるのを防ぐことができるものとなっている。   As described above, in the cap 1 of the present invention, the connecting portion 15 that connects the tip 13a of the tab 13 and the end wall 8b of the annular step portion 8 of the outer cylinder portion 4 in the circumferential direction is provided in the length direction. The bent portion 15a includes a bent portion 15a, and the length of the connecting portion 15 when the bent portion 15a is extended is between the tip 13a of the tab 13 and the end wall 8b of the annular step portion 8 of the outer cylindrical portion 4. Is longer than the length of a virtual arc L formed along the circumference of the outer peripheral surface of the annular step portion 8 of the outer cylindrical portion 4, that is, the length direction by the bent portion 15. The fitting provided on the inner peripheral surface of the annular step portion 8 of the outer cylinder portion 4 in the cap body 2 when the cap body 2 is plugged into the container mouth portion Y1. When the joint convex portion 6 gets over the fitting convex portion Y3 on the container mouth portion Y1, the annular step portion 8 is enlarged in diameter. Therefore, even if a tensile force in the circumferential direction acts on the connecting portion 15, the bending portion 15a can absorb the force, so that the connecting portion 15 is thin and a human finger Even if the breaking strength is low enough to be easily torn off, it is possible to prevent the joining portion 15 from being broken.

更に、タブ１３の内面１３ｄと円弧状凹部１４の外面１４ａとの間には、両者を径方向に連結する補強連結部１７が設けられている。この径方向の補強連結部１７は周方向の繋ぎ部１５の破断防止機能を補助するものであり、タブ１３の内面１３ｄと円弧状凹部１４の外面１４ａとの間に形成されるものであれば、その設置位置は任意であるが、本実施の形態の様に、繋ぎ部１５に近接しつつ、タブ１３の先端側の位置とすることで、その補助機能を高めることができ、又、その形状も任意であるが、本実施の形態の様に、全体を縦リブ状に形成すると共に、その内面１７ａ（円弧状凹部１４側）を湾曲面とし、タブ１３の内面１３ｄとの連結部分及び円弧状凹部１４の外面１４ａとの連結部分を部分的に肉厚にすることで、その補助機能を高めることができる。尚、径方向の補強連結部１７の設置位置は繋ぎ部１５の上方開放間隙１６に対応する位置に形成されており、補強連結部１７の下端部が繋ぎ部１５の上端部に対応する位置とすることで、タブの切り起こしをスムーズに行うことができる。   Furthermore, between the inner surface 13d of the tab 13 and the outer surface 14a of the arcuate recess 14 is provided a reinforcing connecting portion 17 that connects both in the radial direction. The radial reinforcing connecting portion 17 assists the function of preventing the circumferential connecting portion 15 from breaking, and can be formed between the inner surface 13d of the tab 13 and the outer surface 14a of the arcuate recess 14. Although the installation position is arbitrary, the auxiliary function can be enhanced by making the position on the tip side of the tab 13 close to the connecting portion 15 as in the present embodiment. Although the shape is also arbitrary, as in the present embodiment, the whole is formed in a vertical rib shape, and its inner surface 17a (arc-shaped concave portion 14 side) is a curved surface, and the connecting portion with the inner surface 13d of the tab 13 and The auxiliary function can be enhanced by partially thickening the connecting portion of the arcuate recess 14 with the outer surface 14a. The installation position of the reinforcing connecting portion 17 in the radial direction is formed at a position corresponding to the upper open gap 16 of the connecting portion 15, and the lower end portion of the reinforcing connecting portion 17 corresponds to the upper end portion of the connecting portion 15. By doing so, the tab can be cut and raised smoothly.

キャップ本体２を容器口部Ｙ１から分離は、隙間１６から円弧状凹部１４に架けて指先を入れてタブ１３の先端１３ａ側を摘み、径方向の繋ぎ部１７及びを周方向の繋ぎ部１５を引きちぎって、タブ１３を切り起こし、そのタブ１３をしっかりと掴んで、縦方向弱化部１１に向けて周方向に引っ張り、先ずは縦方向弱化部１１を引き裂き、次いで周方向弱化部１２を外筒部４の環状段部８の内周面の嵌合部５の容器口部Ｙ１への嵌合力を弱めるように引き裂けば、容易にそれをすることができる。   The cap body 2 is separated from the container mouth portion Y1 by placing a fingertip over the arc-shaped recess 14 from the gap 16 and picking the tip 13a side of the tab 13, and connecting the radial connecting portion 17 and the circumferential connecting portion 15 with each other. The tab 13 is cut and raised, and the tab 13 is firmly grasped and pulled in the circumferential direction toward the longitudinal direction weakening portion 11. First, the longitudinal direction weakening portion 11 is torn, and then the circumferential direction weakening portion 12 is detached from the outer cylinder. If it tears so that the fitting force to the container opening part Y1 of the fitting part 5 of the internal peripheral surface of the cyclic | annular step part 8 of the part 4 may be weakened, it can be done easily.

この発明のキャップ本体の平面部分拡大図である。It is a plane partial enlarged view of the cap main body of this invention. 同上の底面部分拡大図である。It is a bottom face partial enlarged view same as the above. 同上の正面図である。It is a front view same as the above. 同上の縦断面図である。It is a longitudinal cross-sectional view same as the above. 同上のキャップ本体に蓋体を装着した状態における正面図である。It is a front view in the state where a lid was attached to a cap body same as the above. 同上のキャップを容器口部へ装着した状態における一部断面正面図である。It is a partial cross section front view in the state where a cap same as the above was installed in a container mouth.

符号の説明Explanation of symbols

１ キャップ
２ キャップ本体
３ 蓋体
４ 外筒部
５ 嵌合部
６ 嵌合凸部
７ 嵌合凹部
８ 環状段部
８ａ 上面
８ｂ 端壁
１０ 弱化部
１３ タブ
１３ａ 先端
１４ 円弧状凹部
１５ 繋ぎ部
１５ａ 曲成部
１６ 上部開放間隙
１７ 補強連結部
Ｙ１ 容器口部
Ｙ２ 嵌合部
Ｙ３ 嵌合凸部
Ｙ４ 嵌合凹部 DESCRIPTION OF SYMBOLS 1 Cap 2 Cap main body 3 Cover body 4 Outer cylinder part 5 Fitting part 6 Fitting convex part 7 Fitting concave part 8 Annular step part 8a Upper surface 8b End wall 10 Weakening part 13 Tab 13a Tip 14 Arc-shaped concave part 15 Connecting part 15a Bending Growing part 16 Upper opening gap 17 Reinforcement connecting part Y1 Container mouth part Y2 Fitting part Y3 Fitting convex part Y4 Fitting concave part

Claims (5)

容器口部と嵌合する嵌合部を内周面に有すると共に、弱化部を有する外筒部をキャップ本体に備え、該外筒部に周方向に延在して該弱化部に連続するタブと、該タブの先端と該外筒部との間を周方向に連結する薄肉の繋ぎ部が設けられた合成樹脂製のキャップであって、
該繋ぎ部はその長さ方向において曲がって形成された曲成部を含み、該曲成部の伸展時における該繋ぎ部の長さが、該タブの先端と該外筒部との間に該外筒部の外周面の円周に沿って延長して形成される仮想の円弧の長さよりも長いことを特徴とする合成樹脂製のキャップ。 A tab that has a fitting portion that fits into the container mouth portion on the inner peripheral surface, and has an outer cylinder portion that has a weakened portion on the cap body, extends in the circumferential direction to the outer cylindrical portion, and continues to the weakened portion. And a synthetic resin cap provided with a thin joint portion that connects the tip of the tab and the outer cylinder portion in the circumferential direction,
The connecting portion includes a bent portion formed by bending in the length direction, and the length of the connecting portion when the bent portion is extended is between the tip of the tab and the outer tube portion. A synthetic resin cap characterized in that it is longer than the length of a virtual arc formed by extending along the circumference of the outer peripheral surface of the outer cylinder portion. 該繋ぎ部の該曲成部が略Ｕ字状又は略弓状に湾曲していることを特徴とする請求項１記載の合成樹脂製のキャップ。   The synthetic resin cap according to claim 1, wherein the bent portion of the joint portion is curved in a substantially U shape or a substantially arc shape. 該繋ぎ部の該曲成部が該キャップ本体内方に凹んでいることを特徴とする請求項１又は２に記載の合成樹脂製のキャップ。   The synthetic resin cap according to claim 1 or 2, wherein the bent portion of the joint portion is recessed inward of the cap body. 該タブは該外筒部の外周面に凹設された円弧状凹部の外方に間隙を介して設けられるものであり、該タブの内面と該凹部の外面との間を連結する補強連結部が設けられていることを特徴とする請求項１乃至３の何れかに記載の合成樹脂製のキャップ。   The tab is provided on the outer side of an arc-shaped recess recessed in the outer peripheral surface of the outer cylinder portion via a gap, and a reinforcing connecting portion that connects between the inner surface of the tab and the outer surface of the recess The synthetic resin cap according to any one of claims 1 to 3, wherein a cap is provided. 該補強連結部は、該タブの先端と該外筒部とを周方向に連結する該繋ぎ部に近接すると共に、該タブの先端側に位置して設けられていることを特徴とする請求項４記載の合成樹脂製のキャップ。   The reinforcing connecting portion is provided close to the connecting portion for connecting the tip end of the tab and the outer cylinder portion in the circumferential direction, and is provided on the tip end side of the tab. 4. A cap made of synthetic resin according to 4.
JP2008314215A 2008-12-10 2008-12-10 Plastic cap Active JP5303253B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008314215A JP5303253B2 (en) 2008-12-10 2008-12-10 Plastic cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008314215A JP5303253B2 (en) 2008-12-10 2008-12-10 Plastic cap

Publications (2)

Publication Number Publication Date
JP2010137878A true JP2010137878A (en) 2010-06-24
JP5303253B2 JP5303253B2 (en) 2013-10-02

Family

ID=42348367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008314215A Active JP5303253B2 (en) 2008-12-10 2008-12-10 Plastic cap

Country Status (1)

Country Link
JP (1) JP5303253B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016088538A (en) * 2014-10-31 2016-05-23 株式会社吉野工業所 Cap for classified waste
JP2016222311A (en) * 2015-05-29 2016-12-28 株式会社吉野工業所 Cap for separate disposal

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3043467U (en) * 1997-05-16 1997-11-18 味の素株式会社 Cap stopper for sorting containers
JP3044664U (en) * 1997-05-16 1998-01-06 味の素株式会社 Separation stopper cap
JP2001063744A (en) * 1999-08-31 2001-03-13 Yoshino Kogyosho Co Ltd Container having cap
JP2001146250A (en) * 1999-11-19 2001-05-29 Tenryu Kagaku Kogyo Kk Plug fixing type synthetic resin cap
JP2002211616A (en) * 2001-01-23 2002-07-31 Tenryu Kagaku Kogyo Kk Synthetic resin cap
JP2002225899A (en) * 2001-01-31 2002-08-14 Yoshino Kogyosho Co Ltd Container with separate caps
JP2003312703A (en) * 2002-04-17 2003-11-06 Tenryu Kagaku Kogyo Kk Forcedly fitting type cap made of synthetic resin and mold apparatus for manufacturing it
JP2003312696A (en) * 2002-04-25 2003-11-06 Yoshino Kogyosho Co Ltd Synthetic resin cap
JP2004067175A (en) * 2002-08-07 2004-03-04 Mitsubishi Plastics Ind Ltd Cap and container

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3043467U (en) * 1997-05-16 1997-11-18 味の素株式会社 Cap stopper for sorting containers
JP3044664U (en) * 1997-05-16 1998-01-06 味の素株式会社 Separation stopper cap
JP2001063744A (en) * 1999-08-31 2001-03-13 Yoshino Kogyosho Co Ltd Container having cap
JP2001146250A (en) * 1999-11-19 2001-05-29 Tenryu Kagaku Kogyo Kk Plug fixing type synthetic resin cap
JP2002211616A (en) * 2001-01-23 2002-07-31 Tenryu Kagaku Kogyo Kk Synthetic resin cap
JP2002225899A (en) * 2001-01-31 2002-08-14 Yoshino Kogyosho Co Ltd Container with separate caps
JP2003312703A (en) * 2002-04-17 2003-11-06 Tenryu Kagaku Kogyo Kk Forcedly fitting type cap made of synthetic resin and mold apparatus for manufacturing it
JP2003312696A (en) * 2002-04-25 2003-11-06 Yoshino Kogyosho Co Ltd Synthetic resin cap
JP2004067175A (en) * 2002-08-07 2004-03-04 Mitsubishi Plastics Ind Ltd Cap and container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016088538A (en) * 2014-10-31 2016-05-23 株式会社吉野工業所 Cap for classified waste
JP2016222311A (en) * 2015-05-29 2016-12-28 株式会社吉野工業所 Cap for separate disposal

Also Published As

Publication number Publication date
JP5303253B2 (en) 2013-10-02

Similar Documents

Publication Publication Date Title
JP5645213B2 (en) Hinge cap
EP2822869B1 (en) Tamper-evident closure with tear-off seal
JP2005289389A (en) Hinged cap having no pull-ring
JP5303253B2 (en) Plastic cap
JP5202189B2 (en) Synthetic resin stopper cap with excellent separation and disposal
JP4803661B2 (en) Tamper-evident hinge cap
JP5342047B2 (en) Plastic cap with excellent capping and sorting
JP4401467B2 (en) Plastic cap
JP5027019B2 (en) Plastic cap with excellent capping and sorting
JP2011001119A (en) Hinge cap excellent in separation disposal
JP2008213924A (en) Hinged cap with separation mechanism
JP5069426B2 (en) Pouring tool
JP5312874B2 (en) Plastic cap
JP5188220B2 (en) Plastic cap with excellent capping and sorting
JP5611638B2 (en) Plug
JP4473067B2 (en) Plastic cap that prevents splashing when opening
JP6663272B2 (en) Hinge cap
JP5613489B2 (en) Plastic cap
JP4704765B2 (en) Plastic cap that prevents splashing when opening
JP5713437B2 (en) Hinge cap
JP4430856B2 (en) Plug
JP3188139U (en) Bottle cap
JP5755030B2 (en) cap
JP5710211B2 (en) Hinge cap
JP5627262B2 (en) Hinge cap

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110929

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130129

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130327

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20130611

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130624

R150 Certificate of patent or registration of utility model

Ref document number: 5303253

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250