JP2013043687A - Container lid - Google Patents

Container lid Download PDF

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JP2013043687A
JP2013043687A JP2011184465A JP2011184465A JP2013043687A JP 2013043687 A JP2013043687 A JP 2013043687A JP 2011184465 A JP2011184465 A JP 2011184465A JP 2011184465 A JP2011184465 A JP 2011184465A JP 2013043687 A JP2013043687 A JP 2013043687A
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wall
annular
side wall
lid
upper lid
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JP5757568B2 (en
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Takuto Hasegawa
拓人 長谷川
Yasunori Yamazaki
恭典 山崎
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Nippon Closures Co Ltd
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Japan Crown Cork Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a cap structure which forms a breakable opening at a container mouth, prevents a broken piece from being separated as trash, and has a small opening torque required for breaking.SOLUTION: A container lid includes: a spout portion provided with an annular score in an upper surface wall positioned on the inner side of a mounting wall and at a position eccentric to a mounting wall, and integrally including a breaking portion formed of a bottom surface surrounded by the score and an annular wall extended upward from the circumferential edge of the bottom surface, and fixedly mounted to a container mouth; and an upper lid where an inner annular sidewall suspended downward at a position on the inner side of a mounted wall and eccentric to the mounted wall, and a non-circular outer annular sidewall surrounding the inner annular sidewall, are arranged, wherein the annular wall of the breaking portion of the spout portion is sealed in a form so as to be interposed and fitted between the inner annular sidewall and the outer annular sidewall of the upper lid, and since the upper lid is turned to open the lid, the initial break occurs at a part of the score, and a breaking position successively progresses from an initial breaking portion as the upper lid turns.

Description

本発明は、プルリング方式による開口部開封形態をとらない開栓機構を備えた容器キャップ構造に関するものである。   The present invention relates to a container cap structure having an opening mechanism that does not take the form of opening an opening by a pull ring system.

従来の容器キャップには開封前の密封性を確保するため、プルリングに代表されるような引き裂き可能な開口部を容器口部に形成したものが提供されている。しかし、このプルリング方式の開口部開封構造は引き裂かれた開口部の破断片がゴミとして排出されるため、この不要物の排出を無くした形態が従来から提示されている。図６は特許文献１が提示した紙パック容器のキャップ構造であるが、この発明はプラスチックの成型メーカーのみで簡単に製造でき、アルミニウムラミネート材は不要であり、しかも密封構造が採れるキャップ構造を提供することを目的として提示されたものである。開封前状態を示す図のＡから解るように容器本体側に構成されるキャップ基部体103と、前記キャップ基部体の開口部を塞ぐ中蓋105と、外蓋111とを具備してなり、前記キャップ基部体103と中蓋105とは、キャップ基部体の開口部107の内縁と中蓋の外周縁との間に設けられた薄肉部106を介して一体的に構成されており、前記キャップ基部体と外蓋とは、その外周部と内周部とに形成された螺子溝構造により脱着できるよう構成されている。前記外蓋と中蓋とは、外蓋を螺子溝に沿って回動して前記キャップ基部体に捩じ込むにつれて、図のＢに示されるように、外蓋111を捩じ込み方向に回し、外蓋111を下側に多少変位させると、中蓋105のフランジ部110に外蓋111の凸部112が掛止する。さらに、外蓋111を捩じ込み方向に回し、下側に変位させると、図のＣに示す如く、薄肉部106は切断されキャップ基部体103の立設壁108に中蓋105の立設壁109が案内されて中蓋105が押し込まれる。この切断後、外蓋111を、これまでと逆方向に回し、外蓋111を上側に変位させると、図のＤに示す如く、キャップ基部体103から切断され、かつ、外蓋111に掛止された中蓋105は、キャップ基部体103から分離され、外蓋111に保持された状態で蓋が開かれることになるものである。
この機構は開封に際して、一旦、開封とは逆の方向（閉栓方向）にキャップをねじ込み破断開口を行ってからキャップを開封方向に回転させて開封を行うという厄介な動作を必要とするだけでなく、ねじ込みながら開口部を破断開封する際に、環状形態の薄肉部106全体を一気に破断させる形態であるため、破断のためには大きな力を必要とするものであった。 A conventional container cap is provided with a tearable opening represented by a pull ring formed in a container mouth in order to ensure sealing before opening. However, in this pull-ring-type opening opening structure, a broken piece of the torn opening is discharged as dust, and therefore, a form in which the unnecessary object is not discharged has been proposed. FIG. 6 shows the cap structure of a paper pack container proposed in Patent Document 1, but the present invention provides a cap structure that can be easily manufactured only by a plastic molding manufacturer, does not require an aluminum laminate material, and can have a sealed structure. It was presented for the purpose of doing. A cap base body 103 configured on the container main body side, an inner lid 105 for closing the opening of the cap base body, and an outer lid 111, as can be seen from A in the figure showing the state before opening, The cap base body 103 and the inner lid 105 are integrally configured via a thin portion 106 provided between the inner edge of the opening 107 of the cap base body and the outer peripheral edge of the inner lid, and the cap base The body and the outer lid are configured to be detachable by a screw groove structure formed in the outer peripheral portion and the inner peripheral portion. The outer lid and the inner lid rotate the outer lid 111 in the screwing direction as shown in FIG. B as the outer lid rotates along the screw groove and is screwed into the cap base body. When the outer lid 111 is slightly displaced downward, the convex portion 112 of the outer lid 111 is hooked on the flange portion 110 of the inner lid 105. Further, when the outer lid 111 is turned in the screwing direction and displaced downward, the thin portion 106 is cut and the standing wall 108 of the inner lid 105 is cut to the standing wall 108 of the cap base body 103 as shown in FIG. 109 is guided and the inner lid 105 is pushed. After this cutting, when the outer lid 111 is turned in the opposite direction and the outer lid 111 is displaced upward, it is cut from the cap base body 103 and hooked to the outer lid 111 as shown in FIG. The inner lid 105 is separated from the cap base body 103 and the lid is opened while being held by the outer lid 111.
This mechanism not only requires the troublesome operation of opening the cap by screwing the cap in the direction opposite to the opening direction (capping direction) and opening the rupture opening, then rotating the cap in the opening direction. When the opening is broken and opened while being screwed, the entire thin-walled portion 106 having an annular shape is broken at a stretch, and thus a large force is required for breaking.

また、特許文献２に示されたものは、開栓前は液密性に優れ、開栓に際しては上蓋の旋回に伴って、注出用開口が容易且つ確実に形成可能であると共に、取り除かれた開口予定部を廃棄する必要のないキャップを提供することを目的としたもので、図５に示されるように頂板部202と該頂板部外周縁から垂下するスカート部203とから成り、該スカート部の内面に容器口部の螺子と係合する螺子204が形成されていると共に、頂板部内面にはインナーリング205が形成されて成る上蓋201と、天面221と該天面外周縁から垂下する周状壁222から成り且つ該天面中央部に注出用ノズル225が形成され、該注出用ノズルよりも内側に破断可能な弱化線226により区画された開口予定部227が形成されて成る容器口部に嵌合固定される中栓220とから成るキャップにおいて、前記上蓋頂板部202内面及び中栓の開口予定部227にはそれぞれ環状壁207、228が形成されており、それぞれの環状壁には、上蓋及び中栓が上下方向に係合可能な係合用突起208,229及び開栓方向に上蓋を旋回したときに上蓋及び中栓が周方向に係合可能な複数個のラチェット209,230が形成されていることを特徴とするキャップである。
このキャップも開封に際しては、環状形態の薄肉部226全体を一気に破断させる形態であるため、特許文献１と同様に破断のためには大きな力を必要とするものであった。 In addition, what is disclosed in Patent Document 2 is excellent in liquid tightness before opening, and when opening, the opening for pouring can be easily and reliably formed and removed as the upper lid turns. In order to provide a cap that does not require disposal of the planned opening portion, as shown in FIG. 5, it comprises a top plate portion 202 and a skirt portion 203 depending from the outer periphery of the top plate portion. A screw 204 that engages with a screw of the container mouth is formed on the inner surface of the top portion, and an upper lid 201 having an inner ring 205 formed on the inner surface of the top plate portion, a top surface 221, and a top surface 221 depending from the outer periphery of the top surface A pouring nozzle 225 is formed in the central portion of the top surface, and a pre-opening portion 227 defined by a weakening line 226 that can be broken inside the pouring nozzle is formed. Cap cap comprising inner cap 220 fitted and fixed to the container mouth Further, annular walls 207 and 228 are respectively formed on the inner surface of the upper lid top plate portion 202 and the planned opening portion 227 of the inner plug, and each annular wall is for engagement with which the upper lid and the inner plug can be engaged in the vertical direction. The cap is characterized in that a plurality of ratchets 209, 230 are formed in which the upper lid and the inner plug can be engaged in the circumferential direction when the upper lid is pivoted in the direction of opening the projections 208, 229.
When opening the cap, the entire thin-walled portion 226 having an annular shape is ruptured at a stroke, so that a large force is required for the rupture as in Patent Document 1.

第２９７５６７０号公報（平成１１年９月３日登録）「キャップ構造」 平成１１年１１月１０日発行No. 2975670 (registered on September 3, 1999) “Cap structure” issued on November 10, 1999 特開２００８−３０８２１８号公報 「キャップ」 平成２０年１２月２５日公開JP 2008-308218 A “Cap” Released on December 25, 2008

本発明の課題は、破断可能な開口部を容器口部に形成したキャップ構造であって、破断片がゴミとして分離せず、破断に必要な開栓トルクが小さいキャップ構造を提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide a cap structure in which a breakable opening is formed in a container mouth, and the broken piece is not separated as dust, and the cap opening torque required for breaking is small. .

本発明の容器蓋は、上面壁と該上面壁の上面から上方に延出する外周面に雄ネジが形成される環状の装着壁を有し、該装着壁より内側の上面壁には、該装着壁に対して偏心した位置に環状のスコアが設けられ、該スコアで囲まれた底面部と該底面部の周縁から上方に延びる環状壁とから成る破断部を一体に備えた容器口部に固着される注出部と、天板と該天板内面から垂下する前記雄ネジと螺合する雌ネジが内面に形成される環状の被装着壁を有し、該天板内面には該被装着壁より内側で該被装着壁に対して偏心した位置において下方に垂下する内環状側壁及び該内環状側壁を囲うように非円形の外環状側壁が配置された上蓋とからなり、前記注出部の破断部の環状壁は前記上蓋の内環状側壁と外環状側壁間に挟まれて嵌合される形態で封止され、開封に際しては上蓋が回動されることにより、内環状側壁と外環状側壁が破断部の環状壁に及ぼす力によってスコアの一部で初期破断し、前記上蓋の回動にともない破断位置が初期破断部から順次進行してゆくことを特徴とする。   The container lid of the present invention has an upper surface wall and an annular mounting wall in which a male screw is formed on the outer peripheral surface extending upward from the upper surface of the upper surface wall. An annular score is provided at a position that is eccentric with respect to the mounting wall, and a container mouth portion that is integrally provided with a fracture portion composed of a bottom surface portion surrounded by the score and an annular wall extending upward from the periphery of the bottom surface portion. A pour-out portion to be fixed, and an annular mounting wall formed on the inner surface of the top plate and a female screw to be screwed with the male screw suspended from the inner surface of the top plate. An inner annular side wall that hangs downward at a position that is eccentric with respect to the mounting wall inside the mounting wall and an upper lid on which a non-circular outer annular side wall is disposed so as to surround the inner annular side wall, The annular wall of the broken part of the part is sealed in a form that is sandwiched and fitted between the inner annular side wall and the outer annular side wall of the upper lid When opening, the upper lid is rotated, so that the inner annular side wall and the outer annular side wall are initially broken by a part of the score due to the force exerted on the annular wall of the breaking portion, and the breaking position is accompanied by the rotation of the upper lid. It progresses sequentially from the initial fracture part.

本発明の容器蓋の異なる形態は、上記構成に加え、前記破断部の環状壁上部外側部には突部が形成されると共に、前記外環状側壁の内側にも突部が形成されており、上蓋開封後、両突部により前記破断部が注出部から分離された状態でも該破断部の環状壁は前記上蓋の内環状側壁と外環状側壁間に挟まれて保持固定されることを特徴とする。
本発明の容器蓋の更なる形態は、上記構成に加え、前記外環状側壁を囲うと共に、封止時には容器肩部までを覆うように、前記上蓋には天面に延在するスカート部が形成されるようにした。 A different form of the container lid of the present invention, in addition to the above-mentioned configuration, a protrusion is formed on the upper part of the annular wall of the fracture part, and a protrusion is also formed on the inner side of the outer annular side wall. After the upper lid is opened, the annular wall of the fractured portion is sandwiched between the inner annular side wall and the outer annular side wall of the upper lid and is held and fixed even when the fractured portion is separated from the dispensing portion by both protrusions. And
A further form of the container lid according to the present invention includes, in addition to the above configuration, a skirt portion extending to the top surface is formed on the upper lid so as to surround the outer annular side wall and cover up to the container shoulder when sealed. It was made to be.

本発明の容器蓋は、開封前は注出部の偏心した位置に環状のスコアを介してつながれた環状壁が上蓋の偏心した位置において下方に垂下する内環状側壁と外環状側壁に嵌合挟持された位置関係となっているが、開封に際し、上蓋が回動されると、偏心された内環状側壁と外環状側壁が嵌合挟持している破断部の環状壁に及ぼす力によってスコアの一部で初期破断し、前記上蓋の回動にともない破断位置が初期破断部から順次進行して全周を破断させ、前記破断部を注出部から分離させ、内環状側壁と外環状側壁間に挟まれて保持固定されることになるので、破断部は注出部から分離されても小片としてゴミとなることはない。そして、スコアの破断は初期の部分破断が順次全周に及ぶ形態であるので、破断に必要な開栓トルクは小さいものとなる。しかも、容器の開栓動作は単純な一方向回動動作で行うことができる。   In the container lid of the present invention, before opening, the annular wall connected through the annular score to the eccentric position of the pouring part is fitted and held between the inner annular side wall and the outer annular side wall that hang downward at the eccentric position of the upper lid. However, when the upper lid is rotated at the time of opening, the score is determined by the force exerted on the annular wall of the fractured portion where the eccentric inner annular side wall and outer annular side wall are fitted and sandwiched. The initial breakage occurs at the part, the breakage position sequentially advances from the initial breakage part with the rotation of the upper lid, breaks the entire circumference, separates the breakage part from the pouring part, and between the inner annular side wall and the outer annular side wall. Since it is sandwiched and held and fixed, the broken portion will not become dust as a small piece even if it is separated from the pouring portion. The score rupture is such that the initial partial rupture sequentially extends over the entire circumference, so that the opening torque required for the rupture is small. Moreover, the container opening operation can be performed by a simple one-way rotation operation.

前記破断部の環状壁上部外側部には突部が形成されると共に、前記外環状側壁の内側にも突部が形成される構成を付加した本発明の容器蓋は、上蓋開封後、破断部に回転力がかかって回動され、変形による挟持力が弱められるような場合になっても、両突部により該破断部の環状壁は前記上蓋の内環状側壁と外環状側壁間に挟まれて保持固定される効果を奏する。
また、上記構成に加え、前記外環状側壁を囲うと共に、封止時には容器肩部までを覆うように、前記上蓋には天面に延在するスカート部が形成されるようにした本発明の容器蓋は、容器口部に嵌合された注出部を全体的に覆う形態となるので、その部分の汚れを防止することが出来るだけでなく、上蓋の外径を大きくすることになるため、回転力を大きくすることができ、開封動作におけるスコアの破断を楽に行うことができる。 The container lid of the present invention to which a protrusion is formed on the outer peripheral portion of the annular wall of the fracture portion and a projection is also formed on the inner side of the outer annular sidewall is the fracture portion after the upper lid is opened. Even if the pinching force due to deformation is weakened, the annular wall of the rupture portion is sandwiched between the inner annular side wall and the outer annular side wall of the upper lid by both projections. It has the effect of being held and fixed.
Further, in addition to the above configuration, the container of the present invention is configured such that a skirt portion extending to the top surface is formed on the upper lid so as to surround the outer annular side wall and cover up to the shoulder portion of the container when sealed. Since the lid is in a form that covers the entire pouring part fitted to the container mouth part, not only can the dirt of that part be prevented, but also the outer diameter of the upper lid will be increased, The rotational force can be increased, and the score can be easily broken in the opening operation.

本発明の容器蓋を構成する上蓋と注出部の製造時の断面を示した図である。It is the figure which showed the cross section at the time of manufacture of the upper cover and extraction part which comprise the container lid of this invention. 本発明の上蓋の断面図と下面図を示した図である。It is the figure which showed sectional drawing and the bottom view of the upper cover of this invention. 本発明の注出部の上面図、側面図と下面図を示した図である。It is the figure which showed the upper side figure, side view, and bottom view of the extraction | pouring part of this invention. 本発明の容器蓋の開封時作動を説明する時である。It is time to explain the opening operation of the container lid of the present invention. 従来のキャップ(特許文献２)を示す図である。It is a figure which shows the conventional cap (patent document 2). 従来のキャップ(特許文献１)を示す図である。It is a figure which shows the conventional cap (patent document 1).

本発明の容器蓋の一実施形態を説明する。図１は本発明の容器蓋を構成する製造時の上蓋と注出部を示す。上蓋１は天板３と該天板３内面から垂下する後述する注出部２の雄ネジ9aと螺合する雌ネジ4aが内面に形成される環状の被装着壁４を有し、該天板３の内面には該被装着壁４より内側に天板３から下方に垂下する内環状側壁６及び外環状側壁５が配置され、該内環状側壁６は真円環状の被装着壁４に対して偏心した位置における真円環状体であり、該内環状側壁６を囲うように配置された外環状側壁５は扁平な非円形環状体である。この実施形態に示す被装着壁４、外環状側壁５及び内環状側壁６の形状と位置関係は図２の上蓋下面図に明らかに示されている。   An embodiment of the container lid of the present invention will be described. FIG. 1 shows an upper lid and a dispensing part at the time of manufacture constituting the container lid of the present invention. The top cover 1 has a top plate 3 and an annular mounting wall 4 formed on the inner surface with a female screw 4a screwed with a male screw 9a of a pouring portion 2 to be described later, which hangs down from the inner surface of the top plate 3. An inner annular side wall 6 and an outer annular side wall 5 that hang downward from the top plate 3 are disposed on the inner surface of the plate 3 on the inner side of the mounted wall 4, and the inner annular side wall 6 is formed on the mounted wall 4 having a perfect annular shape. The outer annular side wall 5 arranged so as to surround the inner annular side wall 6 is a flat non-circular annular body. The shapes and positional relationships of the mounted wall 4, the outer annular side wall 5 and the inner annular side wall 6 shown in this embodiment are clearly shown in the bottom view of the upper lid of FIG.

注出部２の構成は上面壁８と該上面壁８の上面から上方に延出する外周面に前記雌ネジ4aと螺合する雄ネジ9aが形成される環状の装着壁９を有し、該装着壁９より内側の上面壁８には、上方に延出する注出ノズル１４が形成され、更にその内側には、該装着壁９に対して偏心した位置に環状のスコア１０が設けられ、該スコア１０で囲まれた底面部１１と該底面部１１の周縁から上方に延びる環状壁１２とから成る破断部１３を一体構造に形成製造される。また、この注出部２の上面壁８の下面には該上面壁８の周縁より下方に延在する周状壁１６とインナーリング１５が形成されており、該周状壁１６の内面が容器口部２０の外周面に、該インナーリング１５外面が容器口部の内周面に密着した状態となって容器口部に嵌合固着され容器に装着される。注出部２の底面部１１と環状壁１２、スコア１０と装着壁９との位置関係及びその形状は図３の上面図、下面図に明らかに示されている。   The structure of the pouring part 2 has an upper surface wall 8 and an annular mounting wall 9 in which a male screw 9a screwed with the female screw 4a is formed on the outer peripheral surface extending upward from the upper surface of the upper surface wall 8. The upper surface wall 8 on the inner side of the mounting wall 9 is formed with a pouring nozzle 14 extending upward, and an annular score 10 is provided on the inner side at a position eccentric to the mounting wall 9. The fractured portion 13 including the bottom surface portion 11 surrounded by the score 10 and the annular wall 12 extending upward from the peripheral edge of the bottom surface portion 11 is integrally formed and manufactured. Further, a peripheral wall 16 and an inner ring 15 extending downward from the peripheral edge of the upper surface wall 8 are formed on the lower surface of the upper surface wall 8 of the pouring portion 2, and the inner surface of the peripheral wall 16 is the container. The outer surface of the inner ring 15 is in close contact with the inner peripheral surface of the container mouth portion on the outer peripheral surface of the mouth portion 20 and is fitted and fixed to the container mouth portion and attached to the container. The positional relationship and the shape of the bottom surface portion 11 and the annular wall 12, the score 10 and the mounting wall 9 of the dispensing portion 2 are clearly shown in the top view and the bottom view of FIG.

上記のような形態に製造された上蓋１と注出部２は、共に偏心構造を備えており、閉栓状態において、両者が互いに干渉することなく嵌合されるためには適正な相対位置で相互に組み合わせることが重要である。その際、注出部２の装着壁９の外面に形成される雄ネジ9aに対して、上蓋１の被装着壁４の内面に形成される雌ネジ4aが強制的に乗り越えるように軸方向に強く力を加えて嵌合される。その後、上蓋１と注出部２とが一体に組み合わされた容器蓋は、嵌合固着された状態で、内容液が充填された容器の容器口部２０に打栓されることで嵌合閉栓される。上記閉栓状態時の上蓋１と注出部２との相対位置について説明すると、図４のＡ（閉栓時）は打栓によって上蓋１が注出部２に嵌合された状態を示している。この図から判るように注出部２の環状壁１２は、装着壁９の中心位置０に対して偏心した位置（偏心中心位置Ｘ）にあるが、上蓋１の被装着壁４の中心位置０に対してやはり偏心した位置（偏心中心位置Ｘ）にある内環状側壁６及びそれを囲む外環状側壁５間に干渉せずに嵌合されるように互いの位置が整合されて封止されている。そして、上蓋１の外環状側壁５の下部内面に形成される突部5aと、破断部１３の環状壁１２の上部外面に形成される突部12aとは干渉しておらず、突部5aは突部12aより下方に位置している。したがって、開封前のスコア１０に対しても無理な負荷がかかることはなく、製造から流通を経て消費地で開封される時まで安定した密封状態を保つことができる。   The upper lid 1 and the dispensing portion 2 manufactured in the above-described form are both provided with an eccentric structure, and in the closed state, in order to be fitted with each other without interfering with each other, the upper lid 1 and the dispensing portion 2 are in an appropriate relative position. It is important to combine them. At that time, the female screw 4a formed on the inner surface of the mounting wall 4 of the upper lid 1 is forced to get over the male screw 9a formed on the outer surface of the mounting wall 9 of the pouring part 2 in the axial direction. It is fitted with a strong force. Thereafter, the container lid in which the upper lid 1 and the dispensing portion 2 are integrally combined is stoppered by being plugged into the container mouth portion 20 of the container filled with the content liquid in a state of being fitted and fixed. Is done. The relative position between the upper lid 1 and the dispensing portion 2 in the closed state will be described. A in FIG. 4 (when closed) shows a state in which the upper lid 1 is fitted to the dispensing portion 2 by stoppering. As can be seen from this figure, the annular wall 12 of the extraction portion 2 is in an eccentric position (eccentric center position X) with respect to the central position 0 of the mounting wall 9, but the central position 0 of the mounted wall 4 of the upper lid 1. The positions of the inner annular side wall 6 and the outer annular side wall 5 that surround the inner annular side wall 6 that are also in an eccentric position (eccentric center position X) are aligned and sealed so as to be fitted without interference. Yes. The protrusion 5a formed on the lower inner surface of the outer annular side wall 5 of the upper lid 1 and the protrusion 12a formed on the upper outer surface of the annular wall 12 of the fracture portion 13 do not interfere with each other. It is located below the protrusion 12a. Therefore, an unreasonable load is not applied to the score 10 before opening, and a stable sealed state can be maintained until it is opened at the consumption area through distribution from manufacture.

また、円形の内環状側壁６が、環状壁１２の内周面に対して、径方向内方に均等な間隔で環状に配置されている（換言すれば、内環状側壁６と環状壁１２の偏心中心位置Ｘ同士が一致している状態となっている）のに対して、非円形の外環状側壁５は、環状壁１２の外周面に対して径方向外方に間隔をおいて配置され、径方向外方に大きく張り出す狭持部１７が一箇所存在することが重要である。図４のＡ（閉栓時）の上面図で更に説明を続けると、閉栓時の狭持部１７は、上面から見て、中心位置０に対して偏心中心位置Ｘが右側に位置する場合、中心位置０と偏心中心位置Ｘとを結ぶ仮想線Ｙよりも下方側に配置されていることが重要である。   Further, the circular inner annular side wall 6 is annularly arranged at equal intervals radially inward with respect to the inner peripheral surface of the annular wall 12 (in other words, the inner annular side wall 6 and the annular wall 12 On the other hand, the non-circular outer annular side wall 5 is arranged radially outwardly with respect to the outer peripheral surface of the annular wall 12. It is important that there is one holding portion 17 that projects greatly outward in the radial direction. When further explaining with the top view of FIG. 4A (at the time of closing), the holding portion 17 at the time of closing is centered when the eccentric center position X is located on the right side with respect to the center position 0 when viewed from above. It is important that it is arranged below the virtual line Y connecting the position 0 and the eccentric center position X.

次に、本発明の容器蓋が開けられる時の動作について図４を参照しつつ詳細に説明する。容器の開栓にあたり、図４のＢ（初期破断時）に示されるように上蓋１が反時計方向に回動させられる。この図はＡ（閉栓時）に示された初期位置から３５度回動された状態を示す図である。この状態では注出部２の環状壁１２が、上蓋１の偏心した位置にある内環状側壁６及びそれを囲む非円形形状の外環状側壁５間に部分的に狭持された状態となっており、この実施形態では本来は真円形状である環状壁１２が弾性変形を強いられて歪む。破断部１３としてこの環状壁１２と一体構造である底面部１１も同様に弾性歪みを生じる。この破断部１３の弾性歪みは注出部２の上面部８と連結しているスコア１０に及び、最も歪みが集中した部分で初期破断が起こる。さらに上蓋１の回動が進むと、歪み集中部が順次移動し破断個所が初期位置から反時計方向に進むこととなる。図のＣ（破断時）に示す図は初期回転位置から１８０度回動された状態を示している。１８０度回動すなわち、上蓋１が半回転されたところで破断部１３のスコア破断伝播は全周に及び、スコア１０は上面部８と完全に分離され、破断部１３は、上蓋１の内環状側壁６と外環状側壁５間に変形された状態、特に狭持部１７に狭持された状態で嵌合保持される。   Next, the operation when the container lid of the present invention is opened will be described in detail with reference to FIG. When opening the container, the upper lid 1 is rotated counterclockwise as shown in FIG. 4B (at the time of initial fracture). This figure is a diagram showing a state of being rotated 35 degrees from the initial position shown in A (at the time of closing). In this state, the annular wall 12 of the pouring part 2 is partially sandwiched between the inner annular side wall 6 in the eccentric position of the upper lid 1 and the noncircular outer annular side wall 5 surrounding the inner annular side wall 6. In this embodiment, the circular wall 12 that is originally a perfect circle is forced to be elastically deformed and distorted. Similarly, the bottom portion 11 that is integrated with the annular wall 12 as the breaking portion 13 is also elastically strained. The elastic strain of the rupture portion 13 reaches the score 10 connected to the upper surface portion 8 of the extraction portion 2, and the initial rupture occurs at the portion where the strain is most concentrated. When the upper lid 1 further rotates, the strain concentrating portion sequentially moves, and the breakage portion advances counterclockwise from the initial position. The figure shown at C (at the time of break) in the figure shows a state rotated 180 degrees from the initial rotation position. When the top cover 1 is rotated, that is, when the upper cover 1 is rotated halfway, the score break propagation of the breaking portion 13 extends over the entire circumference, and the score 10 is completely separated from the upper surface portion 8, and the breaking portion 13 is the inner annular side wall of the upper lid 1. 6 and the outer annular side wall 5 are fitted and held in a state of being deformed between the outer annular side wall 5 and the pinched portion 17.

さらに使用者が上蓋１の回動を進めると注出部２の装着壁９の雄ネジ9aと上蓋１の被装着壁４の雌ネジ4aの螺合が解け、上蓋１が外れるため、容器が開封される。そのとき、破断分離された破断部１３は蓋１の内環状側壁６と外環状側壁５間に変形された状態で嵌合保持されているため、それを破断片としてゴミ処理する必要はなく、使用者は直接内容物の注出を行うことができる。
使用者の再封止に際しては、上蓋１を注出部２に被せ時計方向に回動を進めると注出部２の装着壁９の雄ネジ9aと上蓋１の被装着壁４の雌ネジ4aの螺合がなって再封止がなされる。このとき、上蓋１の内環状側壁６と外環状側壁５間に嵌合保持された破断部１３の底面部１１がスコア１０の破断された開口領域を部分的に塞ぐことになるが、スコア１０が破断されているのでこの部分での封止十分ではない。そのため、この実施形態では注出部２の上面壁８の注出ノズル１４の内周面に密着するようなシールリング１８が上蓋１の天板３の内面より下方に形成されており、再封止機能を担うようになっている。 When the user further rotates the upper lid 1, the male screw 9 a of the mounting wall 9 of the pouring part 2 and the female screw 4 a of the mounted wall 4 of the upper lid 1 are unscrewed, and the upper lid 1 is removed. Opened. At that time, since the fractured portion 13 that has been fractured and separated is fitted and held in a deformed state between the inner annular side wall 6 and the outer annular side wall 5 of the lid 1, it is not necessary to dispose of it as a broken fragment. The user can dispense the contents directly.
When the user reseals, when the upper lid 1 is put on the extraction portion 2 and rotated clockwise, the male screw 9a of the mounting wall 9 of the extraction portion 2 and the female screw 4a of the mounting wall 4 of the upper lid 1 are moved. Are re-sealed. At this time, the bottom surface portion 11 of the breaking portion 13 fitted and held between the inner annular side wall 6 and the outer annular side wall 5 of the upper lid 1 partially blocks the broken opening region of the score 10. Since this is broken, sealing at this portion is not sufficient. For this reason, in this embodiment, a seal ring 18 is formed below the inner surface of the top plate 3 of the top lid 1 so as to be in close contact with the inner peripheral surface of the pouring nozzle 14 of the upper surface wall 8 of the pouring part 2. It comes to bear the stopping function.

本発明の他の実施形態では、破断部１３の環状壁１２上部外側部には突部12aが形成されると共に、上蓋１の外環状側壁５の内側にも突部5aが形成される構成を採用する。この構成は上蓋１の開封後、両突部5a，12aの係合により前記破断部１３が注出部２から分離された状態でも該破断部１３の環状壁１２は前記上蓋１の内環状側壁６と外環状側壁５間に挟まれて保持固定が堅持されるための保証機能を付与したものである。開封後、内環状側壁６と外環状側壁５間に嵌合保持されている破断部１３に何らかの状況で回転力がかかって回動され、環状壁１２の変形による挟持力が弱められ、嵌合が外れるような状況が起こったとしても、両突部5a，12aの係合により該破断部１３は前記上蓋１の内環状側壁６と外環状側壁５間に挟まれて保持固定された状態を確実に保つことができるというものである。   In another embodiment of the present invention, the protrusion 12 a is formed on the outer side of the upper portion of the annular wall 12 of the fracture portion 13, and the protrusion 5 a is also formed on the inner side of the outer annular side wall 5 of the upper lid 1. adopt. In this configuration, after the upper lid 1 is opened, the annular wall 12 of the fractured portion 13 is the inner annular side wall of the upper lid 1 even when the fractured portion 13 is separated from the extraction portion 2 by the engagement of the projections 5a and 12a. 6 and the outer annular side wall 5 are provided with a guarantee function for holding and fixing firmly. After opening, the rupture part 13 fitted and held between the inner annular side wall 6 and the outer annular side wall 5 is rotated by applying a rotational force in some situation, and the clamping force due to the deformation of the annular wall 12 is weakened and fitted. Even if a situation occurs, the broken portion 13 is held and fixed between the inner annular side wall 6 and the outer annular side wall 5 of the upper lid 1 by the engagement of the protrusions 5a and 12a. It can be reliably maintained.

本発明の更なる実施形態では、上蓋１には前記外環状側壁５を囲うと共に、封止時には注出部２のみならず容器肩部までを覆うように、前記天面に延在するスカート部７が形成されるようにする形態を提示する。この構成は容器口部に嵌合された注出部２を全体的に覆う形態となるので、蓋が閉められている間は容器口部から肩部にかけての領域で外気との接触を避け、汚れの付着を防止することが出来るという効果を奏する。また、それだけでなく、上蓋１の外径を大きくすることで、回転力を大きくすることができ、開封動作におけるスコア１０の破断を楽に行うことができる効果も奏する。   In a further embodiment of the present invention, the upper lid 1 surrounds the outer annular side wall 5 and, at the time of sealing, a skirt portion extending to the top surface so as to cover not only the pouring portion 2 but also the container shoulder portion. 7 is formed. Since this configuration is a form that covers the entire dispensing portion 2 fitted to the container mouth, avoid contact with the outside air in the region from the container mouth to the shoulder while the lid is closed, There exists an effect that adhesion of dirt can be prevented. In addition, by increasing the outer diameter of the upper lid 1, the rotational force can be increased, and the score 10 can be easily broken in the opening operation.

本発明の容器蓋は、上蓋の回転により、偏心構造に基づく変形歪みをスコアの一部に集中させて初期破断を起こさせ、更なる回転によって破断が順次先方に進行してゆく現象を利用するものであるから、必ずしも図示した例のよう破断部となるスコアで囲まれた底面部と環状壁や内環状壁の形状は真円である必要はなく、適宜の形状設計が可能である。また、素材としては適度の弾性を要するものであるが、上蓋及び注出部はそれぞれ、従来プラスチックキャップに用いられていたポリエチレン、ポリプロピレン等の樹脂を用いて、射出成形等の従来公知の成形法により成形し、これを組み合わせることにより作製することができる。   The container lid of the present invention utilizes a phenomenon in which the deformation of the eccentric structure is concentrated on a part of the score by the rotation of the upper lid, causing the initial breakage, and the breakage is sequentially advanced further by the further rotation. Therefore, the shapes of the bottom surface portion, the annular wall, and the inner annular wall surrounded by the score that becomes the fracture portion are not necessarily perfect circles as in the illustrated example, and an appropriate shape design is possible. In addition, although the material requires moderate elasticity, the upper lid and the pouring part are each made of a conventionally known molding method such as injection molding using a resin such as polyethylene or polypropylene, which has been used in conventional plastic caps. It can be manufactured by molding and combining these.

１ 上蓋 ２ 注出部
３ 天板 ４ 被装着壁
4a 雌ネジ ５ 外環状壁
5a 突部 ６ 内環状壁
７ スカート部 ８ 上面壁
９ 装着壁 9a 雄ネジ
１０ スコア １１ 底面部
１２ 環状壁 12a 突部
１３ 破断部 １４ 注出ノズル
１５ インナーリング １６ 周状壁
１７ 挟持部 １８ シールリング
Ｏ 中心位置 Ｘ 偏心中心位置
Ｙ 仮想線 1 upper lid 2 pouring part 3 top plate 4 wall to be mounted
4a Female thread 5 Outer annular wall
5a Protrusion 6 Inner annular wall 7 Skirt portion 8 Upper surface wall 9 Mounting wall 9a Male screw 10 Score 11 Bottom portion 12 Annular wall 12a Protrusion 13 Breaking portion 14 Outlet nozzle 15 Inner ring 16 Circumferential wall 17 Holding portion 18 Sealing ring O Center position X Eccentric center position Y Virtual line

Claims (3)

上面壁と該上面壁の上面から上方に延出する外周面に雄ネジが形成される環状の装着壁を有し、該装着壁より内側の上面壁には、該装着壁に対して偏心した位置に環状のスコアが設けられ、該スコアで囲まれた底面部と該底面部の周縁から上方に延びる環状壁とから成る破断部を一体に備えた容器口部に固着される注出部と、
天板と該天板内面から垂下する前記雄ネジと螺合する雌ネジが内面に形成される環状の被装着壁を有し、該天板内面には該被装着壁より内側で該被装着壁に対して偏心した位置において下方に垂下する内環状側壁及び該内環状側壁を囲うように非円形の外環状側壁が配置された上蓋とからなり、
前記注出部の破断部の環状壁は前記上蓋の内環状側壁と外環状側壁間に挟まれて嵌合される形態で封止され、開封に際しては上蓋が回動されることにより、内環状側壁と外環状側壁が破断部の環状壁に及ぼす力によってスコアの一部で初期破断し、前記上蓋の回動にともない破断位置が初期破断部から順次進行してゆくことを特徴とする容器蓋。 The upper wall includes an annular mounting wall formed with a male screw on the outer peripheral surface extending upward from the upper surface of the upper wall, and the upper wall on the inner side of the mounting wall is eccentric with respect to the mounting wall A pouring part fixed to a container mouth part provided with an annular score at a position and having a break part composed of a bottom part surrounded by the score and an annular wall extending upward from the periphery of the bottom part; ,
A top plate and a female screw threadedly engaged with the male screw hanging from the inner surface of the top plate have an annular mounting wall formed on the inner surface, and the inner surface of the top plate is mounted on the inner side of the mounting wall. An inner annular side wall that hangs downward at a position eccentric to the wall, and an upper lid on which a non-circular outer annular side wall is disposed so as to surround the inner annular side wall,
The annular wall of the breaking portion of the pouring part is sealed in a form that is sandwiched and fitted between the inner annular side wall and the outer annular side wall of the upper lid. A container lid characterized in that the side wall and the outer annular side wall are initially fractured at a part of the score by the force exerted on the annular wall of the fractured portion, and the fracture position proceeds sequentially from the initial fractured portion as the upper lid rotates. . 前記破断部の環状壁上部外側部には突部が形成されると共に、前記外環状側壁の内側にも突部が形成されており、上蓋開封後、両突部により前記破断部が注出部から分離された状態でも該破断部の環状壁は前記上蓋の内環状側壁と外環状側壁間に挟まれて保持固定されることを特徴とする請求項１に記載の容器蓋。   A protrusion is formed on the outer part of the upper part of the annular wall of the breaking part, and a protrusion is also formed on the inner side of the outer annular side wall. 2. The container lid according to claim 1, wherein the annular wall of the fracture portion is sandwiched and held between the inner annular side wall and the outer annular side wall of the upper lid even when separated from the container. 前記外環状側壁を囲うと共に、封止時には容器肩部までを覆うように、前記上蓋には天面に延在するスカート部が形成されるようにした請求項１又は２に記載の容器蓋。   The container lid according to claim 1 or 2, wherein a skirt portion extending to the top surface is formed on the upper lid so as to surround the outer annular side wall and to cover up to the container shoulder at the time of sealing.
JP2011184465A 2011-08-26 2011-08-26 Container lid Active JP5757568B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016030619A (en) * 2014-07-29 2016-03-07 三笠産業株式会社 cap
JP2016041608A (en) * 2014-08-13 2016-03-31 三笠産業株式会社 cap
JP2016120966A (en) * 2014-12-25 2016-07-07 株式会社吉野工業所 container
CN107554956A (en) * 2017-09-30 2018-01-09 中山市华宝勒生活用品实业有限公司 With the container cover exempted to open upper lid and unsealed
CN108891758A (en) * 2018-03-24 2018-11-27 中山市华宝勒生活用品实业有限公司 A kind of screw lid

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JPS52123465U (en) * 1976-03-16 1977-09-20
JP2005022674A (en) * 2003-06-30 2005-01-27 Mikasa Sangyo Kk Nozzle cap
JP2010260570A (en) * 2009-04-30 2010-11-18 Yoshino Kogyosho Co Ltd Container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52123465U (en) * 1976-03-16 1977-09-20
JP2005022674A (en) * 2003-06-30 2005-01-27 Mikasa Sangyo Kk Nozzle cap
JP2010260570A (en) * 2009-04-30 2010-11-18 Yoshino Kogyosho Co Ltd Container

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016030619A (en) * 2014-07-29 2016-03-07 三笠産業株式会社 cap
JP2016041608A (en) * 2014-08-13 2016-03-31 三笠産業株式会社 cap
JP2016120966A (en) * 2014-12-25 2016-07-07 株式会社吉野工業所 container
CN107554956A (en) * 2017-09-30 2018-01-09 中山市华宝勒生活用品实业有限公司 With the container cover exempted to open upper lid and unsealed
CN108891758A (en) * 2018-03-24 2018-11-27 中山市华宝勒生活用品实业有限公司 A kind of screw lid

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