JP4407890B2

JP4407890B2 - Weighing cap

Info

Publication number: JP4407890B2
Application number: JP2003192777A
Authority: JP
Inventors: 昇八島
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2003-02-28
Filing date: 2003-07-07
Publication date: 2010-02-03
Anticipated expiration: 2023-07-07
Also published as: JP2004315083A

Description

【０００１】
【発明の属する技術分野】
本発明は、計量キャップに関し、特に容器本体の口首部に取り付けられた液回収用凹部を有する本体キャップに着脱可能に装着される計量キャップに関する。
【０００２】
【従来の技術】
内容液として例えば液体洗剤等を収容する容器は、これらの内容液を計量しつつ使用される場合があり、計量用のカップ等を別途に用いることが煩わしいことから、キャップとして内容液を計量する機能を備えた計量キャップを、例えば合成樹脂製のボトル容器等の口首部に装着して使用されることになる。計量キャップは、目盛り等を備えていて、内容液の種類や使用量に応じて適量を容易に計量することができるようになっている他、計量した内容液を注ぎ出した後に、再び計量キャップを口首部に装着する際に、液だれが生じないようにする必要がある。
【０００３】
口首部への再装着時に液だれが生じないように工夫した計量キャップとしては、例えば、計量キャップの注ぎ口を上方から挿入可能な液回収用の凹部を有する本体キャップを口首部に取り付け、この液回収用の凹部に注ぎ口部を挿入させつつ計量キャップを本体キャップに装着するようにしたものが知られている（例えば、特許文献１参照）。また、注ぎ口の開口周縁部分をラッパ口形状に形成して、液切れが良好となるようにしたものも開示されている（例えば、特許文献２、特許文献３参照）。
【０００４】
【特許文献１】
特開２００１−１３９０４９号公報
【特許文献２】
特開平９−７７１０２号公報
【特許文献３】
実開昭５４−３２５５２号公報
【０００５】
【発明が解決しようとする課題】
従来の計量キャップは、主として射出成形によって形成される合成樹脂製のキャップであったため、成形時の金型の抜き易さ等から、計量キャップの液溜め部分の断面形状は、注ぎ口部の断面形状に制約され、これと同等かこれより小さい形状とする必要があった。したがって、上記従来の注ぎ口部を容器の口首部や本体キャップの内側に挿入配置するようにした計量キャップによれば、計量可能な量を増大するべく、液溜め部分の容量を増やそうとした場合、注ぎ口部と同等の断面で、計量キャップの口首部からの突出長さを大きくする必要があり、高さ方向にかさばることになると共に、外観上不安定な印象を与えやすくなる。また、計量キャップの注ぎ口部を横断方向に拡径して容量を増大しようとすると、注ぎ口部が挿入される口首部や本体キャップもまた横断方向に拡径する必要が生じて、容器や本体キャップを形成する際に使用する樹脂の量が増えることになる。
【０００６】
さらに、計量キャップの注ぎ口部を横断方向に拡径することに伴ない、容器の口首部の径も大きくなるため口首部の径の寸法が不安定になり、品質面での不具合（液モレ、嵌合外れ等）を生じる虞れがあった。
【０００７】
これに対し、例えば計量キャップの成形方法等を工夫することにより、本体キャップの液回収用凹部に挿入配置される液戻し筒部の上方に当該液戻し筒部の内径よりも大きな内径を備える液溜め膨出部を設け、これによって計量キャップの口首部からの突出長さを大きくすることなく、また本体キャップを横断方向に拡径することなく計量可能な容量を増やすようにした計量キャップが、本願出願人の出願に係る特願２００２−３７７８６３号に記載されているが、計量のし易さや成形のし易さをさらに改良すると共に、清掃性の向上、製造価格の安さ、容量のさらなる増大をもたらす計量キャップの開発が要望されている。
【０００８】
本発明は、口首部からの突出長さを過度に大きくすることなく、且つ本体キャップを横断方向に拡径することなく液溜め部分の容量を増大して、計量キャップによって計量可能な容量を容易に増やすことができると共に、計量のし易さや成形のし易さを向上させ、且つ清掃性の向上、製造価格の安さ、容量のさらなる増大をもたらすことのできる計量キャップを提供することを目的とする。
【０００９】
【課題を解決するための手段】
本発明は、容器本体の口首部に取り付けられた液回収用凹部を有する本体キャップに着脱可能に装着される計量キャップであって、先端の注ぎ口を下方に向けて、装着時に前記本体キャップの液回収用凹部に挿入配置される液戻し筒部と、該液戻し筒部と連接して前記液回収用凹部の上方に配置される、液戻し筒部の内径よりも大きな内径を備える液溜め膨出部とを有しており、且つ前記液溜め膨出部と前記液戻し筒部との接続部が、前記液戻し筒部に向けて斜めに延設してその内径を徐々に縮径させていると共に、装着時にその外周面の一部を前記液回収用凹部の上端部内周面に密着せさている計量キャップを提供することにより、上記目的を達成したものである。
【００１０】
ここで、上記記載において、液戻し筒部の内径と比較される液溜め膨出部の内径は、当該液溜め膨出部における胴部の内径を意味するものであり、当該胴部において、液戻し筒部の内径よりも内径が大きい部分を少なくとも一部に有していれば良い。また、内径は、液戻し筒部又は液溜め膨出部の断面形状が円形である場合にはこれの直径を意味し、円形以外のものである場合には、当該断面形状の断面二次半径の２倍を意味するものである。
【００１１】
さらに、上記記載において、液戻し筒部に向けて斜めに延設してその内径を徐々に縮径させている液溜め膨出部と液戻し筒部との接続部は、その全体に亘って直線状に連続して斜めに延設している必要は必ずしもなく、曲線状に斜めに延設しつつ縮径したり、斜めではない部分を挟んで階段状に徐々に縮径している場合も含まれる。
【００１２】
【発明の実施の形態】
図１に示す本発明の好ましい実施形態に係る計量キャップ１０は、例えば内容液として液体洗剤や柔軟剤、糊剤等を収容する合成樹脂製のボトル容器の口首部１１に着脱可能に装着されると共に、外周面又は内周面に目盛り等が描かれていて、適量の液体洗剤を計量して洗濯機等に投入することのできる機能を備えている。
【００１３】
また、本実施形態によれば、ボトル容器を構成する容器本体１２の上端部から突出して設けられた口首部１１には、液回収用凹部２０を有する本体キャップ１３が取り付けられており、この本体キャップ１３に螺合装着されることにより、計量キャップ１０は、当該本体キャップ１３を介して口首部１１に着脱可能に装着されることになる。なお、本実施形態によれば、口首部１１の内径Ｄ1は、例えばφ３２．０ｍｍとなっている。
【００１４】
そして、本実施形態の計量キャップ１０は、先端の注ぎ口１４を下方に向けて、装着時に本体キャップ１３の液回収用凹部２０に上方から挿入配置される液戻し筒部１５と、この液戻し筒部１５と連接して液回収用凹部２０の上方に配置される、液戻し筒部の内径Ｄ2よりも大きな内径Ｄ3を備える液溜め膨出部１６とを有しており、且つ液溜め膨出部１６と液戻し筒部１５との接続部３５が、液戻し筒部１５に向けて斜めに延設してその内径を徐々に縮径させていると共に、装着時にその外周面の一部を上方シール面３７として液回収用凹部２０の上端部内周面に密着せさている。
【００１５】
また、本実施形態によれば、液溜め膨出部１６は、容器本体１２の口首部１１の内径Ｄ1よりも大きな内径Ｄ3を備えている。
【００１６】
さらに、本実施形態によれば、計量キャップ１０は、上下に分割した下方部材１８と上方部材１９とを射出成形により形成し、環状接合部１７を介してこれらを接合一体化することによって得られるようになっている。
【００１７】
さらにまた、本実施形態によれば、注ぎ口１４の周縁部分が、計量キャップ１０の装着時に、液回収用凹部２０の下部における内周面に設けられた当接段差部３６と密着当接するようになっている。
【００１８】
本実施形態によれば、口首部１１に取り付けられる本体キャップ１３は、例えば特開２００１−１３９０４９号公報に記載される本体キャップと略同様の構成を有する、例えば射出成形によって形成された合成樹脂製の公知のものであり、注ぎ口１４を下方に向けた状態の計量キャップ１０の液戻し筒部１５を、上方から挿入配置させることのできる大きさの液回収用凹部２０を内側に有している。
【００１９】
また、本体キャップ１３は、ボトル容器の口首部１１を覆って装着されるスカート壁部２２と、スカート壁部２２の天井部２３から上方に突出してスカート壁部２２よりも小さな径で同心状に設けられ、外周面に雄ネジ２５が形成された雄ネジ壁部２４と、雄ネジ壁部２４の下端部から口首部１１の内周面に沿うようにして下方に延設されると共に、斜めに傾斜する底面板２６を有する椀状の受け皿部２７と、この受け皿部２７の中央部分から上方に突出して設けられ、液回収用凹部２０に液戻し筒部１５を挿入配置した計量キャップ１０の装着時に、液戻し筒部１５を経て計量キャップ１０の内側に配置される注出ノズル２１とからなる。
【００２０】
スカート壁部２２は、その下端部内周面に係合用凹凸部２８を有しており、本体キャップ１３をボトル容器の口首部１１に押し込んで、この係合用凹凸部２８を口首部１１の基端部外周面に形成した被係合用凹凸部２９に係止することにより、本体キャップ１３がボトル容器の口首部１１に装着固定される。また、雄ネジ壁部２４の雄ネジ２５には、後述する計量キャップ１０のスカート状の環状壁３０に形成された雌ネジ３１が螺合され、また雄ネジ壁部２４は、受け皿部２７と共にその内側に液回収用凹部２０を形成する。
【００２１】
受け皿部２７は、ボトル容器の口首部１１の内側に挿入配置される椀状部分であって、これの斜めに傾斜する底面板２６には、その最も低い部分に位置して液戻し開口３２か形成されている。そして計量キャップ１０を再装着した際に、計量キャップ１０から液回収用凹部２０に回収された余剰液を、この液戻し開口３２を介して容器本体１２の内部に戻すことができるようになっている。また、底面板２６の周縁部分から離れた中央部分には、当該底面板２６から雄ネジ壁部２４の上方まで突出させて注出ノズル２１が設けられている。注出ノズル２１は、その基端部において底面板２６に開口形成した流出開口３３と連通しており、計量キャップ１０の注ぎ口１４よりも断面形状が小さくなった先端注出口３４を介して、計量キャップ１０に液体洗剤をスムーズに注出することができるようになっている。
【００２２】
本実施形態によれば、本体キャップ１３を介して口首部１１に装着される計量キャップ１０は、例えば透明な合成樹脂を射出成形して形成される下方部材１８と上方部材１９との２部材で構成されている。下方部材１８及び上方部材１９は、いずれも、射出成形時に金型を容易に抜くことができるように設計された形状を有している。下方部材１８及び上方部材１９は、成形後に環状接合部１７を介して接合一体化することによって、装着時に本体キャップ１３の液回収用凹部２０に挿入配置される液戻し筒部１５と、液戻し筒部１５と連接一体化されて本体キャップ１３の上方に配置される液溜め膨出部１６とを備える計量キャップ１０を構成することになる。
【００２３】
下方部材１８は、内径Ｄ2が例えばφ２６．６ｍｍとなった円筒状部分である液戻し筒部１５と、この液戻し筒部１５の基端部から液溜め膨出部１６に向けてその内径を徐々に拡径させつつ斜めに延設する部分を備える接続部３５とを有しており、また接続部３５の基端部から外側に張り出した環状リブ４３の外周縁部から垂下されて、内周面に雌ネジ３１を有するスカート状の環状壁３０が、液戻し筒部１５と同心状に設けられている。このスカート状の環状壁３０を、外周面に雄ネジ２５が設けられた本体キャップ１３の雄ネジ壁部２４に螺合することによって、計量キャップ１０が口首部１１に着脱可能に装着される。なお、環状壁３０の雌ネジ３１を介して計量キャップ１０を本体キャップ１３に螺合装着することにより、注ぎ口１４から液戻し筒部１５の外周面に液体洗剤が液だれした場合でも、当該液体洗剤が雌ネジ３１に付着するのを効果的に回避できると共に、計量キャップ１０を着脱する際に指が汚れるのを回避することが可能になる。
【００２４】
液戻し筒部１５は、環状リブ４３の下面が本体キャップ１３の雄ネジ壁部２４の上端に当接するまで計量キャップ１０を螺合装着した際に、先端の注ぎ口１４が受け皿部２７の底面板２６の近くに配置される長さで設けられている。また、計量キャップ１０が本体キャップ１３に螺合装着された際に、注ぎ口１４の開口周縁部分は、液回収用凹部２０の下部において受け皿部２７の内周面に形成された当接段差部３６と密着当接するようになっており、これによって、収容された液体洗剤等が、液戻し筒部１５の外側の液回収用凹部２０との間の隙間に回り込むのを防止するシール機能を、効果的に発揮するようになっている。さらに、液戻し筒部１５とこれに連接する接続部３５には、外周面又は内周面に、計量用の目盛りが適宜描かれている。
【００２５】
本実施形態によれば、内用液（液体洗剤等）を計量キャップ１０で計量した後に本体キャップ１３に挿入された液戻し筒部１５は、小さな起伏で内側に傾かせた形状となっているので、液溜め膨張部１６を含めた計量キャップ１０の内壁面に付着している内容液を、本体キャップ１３を経由して容器本体１２の内部に容易に戻すことが可能になる。また、液戻し筒部１５は、その注ぎ口１４の開口周縁部分が当接段差部３６と密着して下方シール面を構成し、本体キャップ１３への上方シール面３７と共に２重にシールすることが可能になっているので、液漏れをより確実に防止することが可能になる。さらに、液戻し筒部１５の外周部分には、環状壁３０による雌ネジ３１が形成されており、環状壁３０の雌ネジ３１と液戻し筒部１５とが一体となって本体キャップ１５に嵌着（螺合）されることにより、摩擦や内容液の付着等によって液戻し筒部１５の嵌合が緩くなるのを回避して、計量キャップ１０の落下をより効果的に防止することが可能になる。
【００２６】
なお、本実施形態によれば、液戻し筒部１５の注ぎ口１４の先端の開口周縁部分は、図２に示すように、外側に折り返すように湾曲するラッパ口形状を備えるように形成することもできる。すなわち、本実施形態によれば、液戻し筒部１５が設けられる下方部材１８は、例えば射出成形時に金型を容易に抜くことができるように設計された形状を有していることから、このようなラッパ口形状を注ぎ口１４の開口周縁部分に容易に形成することが可能になる。また注ぎ口１４の先端の開口周縁部分がラッパ口形状となっていることにより、計量キャップ１０から液体洗剤等を注ぎ出した後の開口周縁部分における液切れが確実かつ容易に行われることになり、これによって液体洗剤等の回り込みをさらに効果的に回避することが可能になると共に、周辺部分を汚損することもない。さらに、汚れなどの付着した部分には塗布しやすくなり、必要な箇所に適量塗布することが可能になる。
【００２７】
接続部３５は、図１にも示すように、液溜め膨出部１６と液戻し筒部１５との間に介在してこれらを接続する部分であって、戻し筒部１５の基端部から斜めに延設する傾斜部３５ａと、環状リブ４３に近接する部分において垂直に延設する垂直部３５ｂとからなり、垂直部３５ｂの外周面が、計量キャップ１０の装着時に液回収用凹部２０の上端部内周面と密着する上方シール面３７を構成している。この上方シール面３７と環状壁３０の内側面との間に本体キャップ１３の雄ネジ壁部２４の上端部を挟み込みようにしつつ、計量キャップ１０が本体キャップ１３に装着されることになる。
【００２８】
環状リブ４３は、接続部３５と、上方部材１９による液溜め膨出部１６との段差部分に設けられる円環状部分であって、当該段差部分においてこれらを滑らかに接続できるように、その内側角部分がテーパー部４４として斜めに配置されている。また環状リブ４３の上面には、一対の挟込み環状リブ３８が上方に突出して設けられており、これらの挟込み環状リブ３８の間隔部分に、上方部材１９の挿入環状リブ４１を挿入係止しつつ、上方部材１９が下方部材１８に装着一体化されることになる。
【００２９】
そして、本実施形態によれば、外側の挟込み環状リブ３８は、その外周面が環状壁３０の外周面と面一となるように立設しており、これらの連続する外周面によって形成される下方部材１８の上部外周面３９が、上方部材１９の下部に設けられた接合スカート部４０の内側に填め込まれることにより、下方部材１８と上方部材１９とを接合一体化する環状接合部１７が構成されることになる。また、外側の挟込み環状リブ３８の外周面と環状壁３０の外周面とによる上部外周面３９には、上下方向に延設する帯状係止凹部（図示せず）が、周方向に間隔をおいて複数設けられている。上方部材１９の接合スカート部４０の内側面に上下方向に延設して複数設けた帯状係止凸部（図示せず）を、これらの帯状係止凹部に各々係止しつつ上方部材１９を下方部材１８に装着一体化することにより、上方部材１９の下方部材１８に対する周方向への相対的な回転移動を効果的に回避することができるようになっている。
【００３０】
上方部材１９は、その胴部の内径Ｄ3が例えばφ３６．０ｍｍとなった略有底円筒形状を備える液溜め膨出部１６と、液溜め膨出部１６の下端部から内径を僅かに拡径させて下方に延設された接合スカート部４０とからなり、また接合スカート部４０の上端部内側には、液溜め膨出部１６と同径で下方に延設する挿入リブ４１が同心状に設けられている。
【００３１】
液溜め膨出部１６は、環状リブ４３を介して液戻し筒部１５及び接続部３５と連続形成された、主として計量される液体洗剤を貯留する部分であって、その内径Ｄ3が、液戻し筒部１５の内径Ｄ2及び容器本体１２の口首部１１の内径Ｄ1よりも大きくなっており、且つ上方から見て本体キャップ１３のスカート壁部２２によって囲まれる領域内に納まる大きさの外径となるように形成されている。また、液溜め膨出部１６は、環状リブ４３からの高さＨが例えば３２．０ｍｍとなっており、当該高さＨが液溜め膨出部１６の内径Ｄ3よりも小さくなった、扁平で安定した外観形状を有している。さらに、複雑な凹凸形状が外側からは見えないように内側に隠されて、簡素な外観形状を有している。
【００３２】
接合スカート部４０は、上方部材１９の下部に配置されて下方部材１８の上部外周面３９を内挿嵌合するスカート状の部分であって、帯状係止凸部を帯状係止凹部に係止しつつ上部外周面３９を内側に填め込むようにして、下方部材１８と上方部材１９とを接合一体化させる。また接合スカート部４０の下端内側面には、下端固定リブ４２が内側に突出して設けられており、接合スカート部４０の下端開口の弾性変形を介して、填め込まれた下方部材１８の環状壁３０の下端縁部に下端固定リブ４２を係止固定することにより、一対の挟込み環状リブ３８の間に挿入リブ４１を挿入係止した状態で、上方部材１９と下方部材１８とが強固に接合一体化されることになる。
【００３３】
そして、上記構成を有する本実施形態の計量キャップ１０によれば、口首部１１からの突出長さを過度に大きくすることなく、且つ口首部１１や本体キャップ１３を横断方向に拡径することなく液溜め部分の容量を増大して、計量キャップ１０によって計量可能な容量を容易に増やすことができると共に、計量のし易さや成形のし易さを向上させることができる。すなわち、本実施形態によれば、計量キャップ１０は、液戻し筒部１５と連接したこれの内径Ｄ2よりも大きな内径Ｄ3を備える液溜め膨出部１６を有しているので、この拡径された液溜め膨出部１６によって、当該液溜め膨出部１６の高さを過度に大きくして不安定な形状とすることなく、計量可能な液体洗剤等の容量を容易に増やすことが可能になる。
【００３４】
また、液溜め膨出部１６の拡径によって計量可能な容量が増えることにより、液戻し筒部１５の外径を、従来のものと同様の大きさに保持することができ、従って口首部１１や本体キャップ１３を横断方向に拡径する必要がない。また口首部１１や本体キャップ１３を横断方向に拡径する必要がないため、口首部１１を拡径する場合に生じる寸法不安定による液漏れの不具合を防止することが可能になる。
【００３５】
さらに、本実施形態によれば、液溜め膨出部１６の外径が本体キャップ１３のスカート壁部２２の外径と略同じ大きさとなっているので、安定感のあるシンプルな外観を有すると共に、計量キャップ１０を着脱する際の操作や、ボトル容器の製造時における箱詰めする工程等において、容器の首部を把持する操作をスムーズに行うことが可能になる。また容量の設計変更をする場合、液溜め膨出部１６を所望量に容量変更したものに付けかえ、液戻し筒部１５に装着することで、容易に容量の設計変更をすることが可能になる。
【００３６】
さらにまた、本実施形態の計量キャップ１０によれば、上下に分割した下方部材１８及び上方部材１９は、いずれも金型が抜き易いように設計された形状を有しており、射出成形によって各々容易に形成することができるので、例えば液溜め膨出部をブロー成形によって成形する場合と比較して、精度良く成形することが可能になり、また容量の設計変更に対する自由度を容易に確保することが可能になる。
【００３７】
また、本実施形態の計量キャップ１０によれば、液溜め膨出部１６と液戻し筒部１５は、液戻し筒部１５に向けて斜めに延設してその内径を徐々に縮径させた接続部３５を介して接続しており、当該接続部３５においては大きな段差部が排除されているので、注出ノズル２１を介して液体洗剤を計量キャップ１０に注入する際に、段差部を挟んで断面積が変化することによる急激な液面上昇を効果的に回避して、滑らかな液面上昇を得ることができ、これによって所望の容量の液体洗剤、柔軟剤、糊剤等を、容易且つ正確に計りとることが可能になる。また計量した液体洗剤を注出する際に、段差部に液残りが生じるのを効果的に回避することも可能になる。さらに、段差部が無いことで、計量キャップ１０による計量可能な容量が増大するので、計量可能な容量を増大するための液溜め膨出部１６の拡径や、高さ方向の延長を、極力抑制することが可能になる。
【００３８】
また、本実施形態の計量キャップ１０によれば、本体キャップ１３の径（容器本体の口首部１１の径）を大きくすることなく計量可能な容量を大きくすることができるので、容器本体１２や本体キャップ１３を含めた樹脂量を少なくすると共に、成形品の寸法のバラツキを小さくすることが可能になり、液漏れ等の品質面でも非常に優れる。
【００３９】
さらにまた、本実施形態の計量キャップ１０によれば、接続部３５の上方シール面３７を液回収用凹部２０の上端部内周面に密着せさて、装着時における本体キャップ１３の開口縁部のシール性を確保しているので、当該シール性を確保するためのインナーリングを設ける必要がなく、これによってインナーリングのための金型や樹脂量を低減し、且つ計量キャップ１０の金型構造を簡素化することにより価格を安くして、計量キャップ１０の成形のし易さを向上させることが可能になると共に、上方シール面３７は、相当の強度を有する接続部３５の一部として設けられているので、剛性に優れており、これによって強固なシール性を容易に確保することが可能になる。
【００４０】
なお、本発明は上記実施形態に限定されることなく種々の変更が可能である。例えば、計量キャップの液戻し筒部や液溜め膨出部は円筒形状のものである必要は必ずしもなく、また雄ネジや雌ネジを介して本体キャップに螺合装着されるものである必要は必ずしもない。さらに、容器本体に収容される内容液は、液体洗剤、柔軟剤、糊剤等の他、計量を必要とするその他の種々の液体製品であっても良い。さらにまた、計量キャップは、射出成形によって形成した下方部材と上方部材とを環状接合部を介して接合一体化したものである必要は必ずしもなく、環状接合部は、例えば下方部材の上端部に上方部材をネジ嵌合するものであっても良い。
【００４１】
【発明の効果】
本発明の計量キャップによれば、口首部からの突出長さを過度に大きくすることなく、且つ本体キャップを横断方向に拡径することなく液溜め部分の容量を増大して、計量キャップによって計量可能な容量を容易に増やすことができると共に、計量のし易さや成形のし易さを向上させることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る計量キャップを説明する、容器本体の口首部への装着状態の断面図である。
【図２】本発明の一実施形態に係る計量キャップの他の実施態様を説明する、容器本体の口首部への装着状態の断面図である。
【符号の説明】
１０計量キャップ
１１口首部
１２容器本体
１３本体キャップ
１４注ぎ口
１５液戻し筒部
１６液溜め膨出部
１７環状接合部
１８下方部材
１９上方部材
２０液回収用凹部
３５接続部
３５ａ傾斜部
３５ｂ垂直部
３６当接段差部
３７上方シール面
４３環状リブ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a measuring cap, and more particularly, to a measuring cap that is detachably attached to a main body cap having a liquid recovery concave portion attached to a mouth portion of a container main body.
[0002]
[Prior art]
For example, containers containing liquid detergent or the like as content liquids may be used while measuring these content liquids, and it is cumbersome to use a measuring cup or the like separately. For example, a measuring cap having a function is attached to a mouth portion of a synthetic resin bottle container or the like. The measuring cap is equipped with a scale, etc., so that an appropriate amount can be easily measured according to the type and usage of the content liquid. It is necessary to prevent dripping when attaching to the mouth.
[0003]
As a measuring cap devised so as not to cause dripping when reattached to the mouth, for example, a body cap having a liquid recovery recess that can be inserted from above the measuring spout is attached to the mouth. There is known one in which a measuring cap is attached to a main body cap while a spout portion is inserted into a recess for liquid recovery (see, for example, Patent Document 1). Moreover, the thing which formed the opening peripheral part of the opening of the spout in the trumpet shape so that liquid breakage is good is disclosed (for example, refer to Patent Document 2 and Patent Document 3).
[0004]
[Patent Document 1]
JP 2001-139049 A [Patent Document 2]
JP-A-9-77102 [Patent Document 3]
Japanese Utility Model Publication No. 54-32552 gazette
[Problems to be solved by the invention]
Since the conventional measuring cap is a synthetic resin cap mainly formed by injection molding, the cross-sectional shape of the liquid reservoir part of the measuring cap is the cross-section of the spout part, for ease of removal of the mold during molding, etc. It was constrained by the shape, and it was necessary to make the shape equal to or smaller than this. Therefore, according to the measuring cap in which the conventional spout part is inserted and arranged inside the neck part of the container or the inside of the main body cap, when trying to increase the capacity of the liquid storage part in order to increase the measurable amount In addition, it is necessary to increase the protruding length from the neck portion of the measuring cap with a cross-section equivalent to the spout portion, and it becomes bulky in the height direction, and it is easy to give an unstable appearance. Further, when trying to increase the capacity by expanding the diameter of the spout part of the measuring cap in the transverse direction, the neck part and the body cap into which the spout part is inserted also need to be expanded in the transverse direction. The amount of resin used when forming the main body cap will increase.
[0006]
Furthermore, as the diameter of the spout of the measuring cap is increased in the transverse direction, the diameter of the neck of the container also increases, making the diameter of the mouth of the container unstable, resulting in quality problems (liquid , Disengagement, etc.).
[0007]
On the other hand, for example, by devising a molding cap molding method, etc., a liquid having an inner diameter larger than the inner diameter of the liquid return cylinder part above the liquid return cylinder part inserted and arranged in the liquid recovery recess of the main body cap. A measuring cap provided with a reservoir bulge, thereby increasing the capacity that can be measured without increasing the protruding length of the measuring cap from the neck and without expanding the main body cap in the transverse direction. Although described in Japanese Patent Application No. 2002-377863 relating to the application of the present applicant, the ease of weighing and the ease of molding are further improved, the cleaning property is improved, the manufacturing price is lower, and the capacity is further increased. Development of a measuring cap that brings
[0008]
The present invention increases the capacity of the liquid reservoir without excessively increasing the protruding length from the mouth and without expanding the main body cap in the transverse direction, and facilitates the capacity that can be measured by the measuring cap. It is an object of the present invention to provide a measuring cap that can be easily increased, can be easily metered, can be easily molded, can be easily cleaned, can be manufactured at low cost, and can further increase its capacity. To do.
[0009]
[Means for Solving the Problems]
The present invention is a measuring cap that is detachably attached to a body cap having a liquid recovery recess attached to a mouth part of a container body, and the tip of the body cap is directed downward when attached. A liquid return cylinder portion inserted into the liquid recovery recess, and a liquid reservoir having an inner diameter larger than the inner diameter of the liquid return cylinder portion connected to the liquid return cylinder portion and disposed above the liquid recovery recess And a connecting portion between the liquid reservoir bulge and the liquid return cylinder extends obliquely toward the liquid return cylinder and gradually reduces the inner diameter thereof. In addition, the above-mentioned object is achieved by providing a measuring cap in which a part of the outer peripheral surface thereof is in close contact with the inner peripheral surface of the upper end portion of the liquid recovery recess when mounted.
[0010]
Here, in the above description, the inner diameter of the liquid reservoir bulging portion compared with the inner diameter of the liquid return cylinder portion means the inner diameter of the trunk portion in the liquid reservoir bulging portion. It suffices to have at least a part having a larger inner diameter than the inner diameter of the return cylinder part. The inner diameter means the diameter of the liquid return cylinder or the liquid reservoir bulge when the cross-sectional shape is circular, and when the cross-sectional shape is other than circular, the secondary radius of the cross-section of the cross-sectional shape. Means twice as much.
[0011]
Further, in the above description, the connecting portion between the liquid reservoir bulging portion and the liquid returning cylindrical portion, which extends obliquely toward the liquid returning cylindrical portion and gradually reduces its inner diameter, extends over the entire portion. It is not always necessary to extend diagonally continuously in a straight line, and when the diameter is reduced while extending diagonally in a curved line, or when the diameter is gradually reduced stepwise across a non-oblique part Is also included.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
A measuring cap 10 according to a preferred embodiment of the present invention shown in FIG. 1 is detachably attached to a mouthpiece 11 of a synthetic resin bottle container containing, for example, a liquid detergent, a softening agent, a glue, etc. as a content liquid. In addition, a scale or the like is drawn on the outer peripheral surface or the inner peripheral surface, and it has a function of measuring an appropriate amount of liquid detergent and putting it in a washing machine or the like.
[0013]
In addition, according to the present embodiment, the body cap 13 having the liquid recovery recess 20 is attached to the mouth 11 that protrudes from the upper end of the container body 12 that constitutes the bottle container. By being screwed onto the cap 13, the measuring cap 10 is detachably attached to the mouthpiece 11 via the main body cap 13. According to the present embodiment, the inner diameter D1 of the mouth neck 11 is, for example, φ32.0 mm.
[0014]
The measuring cap 10 of the present embodiment has a liquid return cylinder portion 15 that is inserted and disposed in the liquid recovery recess 20 of the main body cap 13 from above when the spout 14 at the tip is directed downward, and this liquid return. A liquid reservoir bulging portion 16 having an inner diameter D3 larger than the inner diameter D2 of the liquid return cylinder portion, which is connected to the cylindrical portion 15 and disposed above the liquid recovery recess 20; A connecting portion 35 between the outlet portion 16 and the liquid return cylinder portion 15 extends obliquely toward the liquid return cylinder portion 15 to gradually reduce its inner diameter, and a part of the outer peripheral surface at the time of mounting. As an upper seal surface 37 and is in close contact with the inner peripheral surface of the upper end of the liquid recovery recess 20.
[0015]
In addition, according to the present embodiment, the liquid reservoir bulging portion 16 has an inner diameter D3 that is larger than the inner diameter D1 of the neck 11 of the container body 12.
[0016]
Furthermore, according to the present embodiment, the measuring cap 10 is obtained by forming the lower member 18 and the upper member 19 divided into upper and lower parts by injection molding, and joining and integrating them through the annular joint portion 17. It is like that.
[0017]
Furthermore, according to the present embodiment, the peripheral portion of the spout 14 is in close contact with the contact stepped portion 36 provided on the inner peripheral surface of the lower portion of the liquid recovery recess 20 when the measuring cap 10 is attached. It has become.
[0018]
According to this embodiment, the main body cap 13 attached to the mouthpiece 11 has a configuration substantially the same as that of the main body cap described in, for example, Japanese Patent Application Laid-Open No. 2001-139049, and is made of, for example, a synthetic resin formed by injection molding. The liquid return cylinder portion 15 of the measuring cap 10 with the spout 14 facing downward is provided on the inside with a liquid recovery recess 20 of a size that can be inserted and arranged from above. Yes.
[0019]
The body cap 13 is concentrically formed with a skirt wall 22 that covers the mouth 11 of the bottle container and a skirt wall 22 that protrudes upward from the ceiling 23 of the skirt wall 22 and has a smaller diameter than the skirt wall 22. A male screw wall portion 24 having a male screw 25 formed on the outer peripheral surface, and extending downward from the lower end portion of the male screw wall portion 24 along the inner peripheral surface of the mouth portion 11 and obliquely. Of a bowl-shaped saucer portion 27 having a bottom plate 26 inclined to the top, and a measuring cap 10 provided so as to protrude upward from the central portion of the saucer portion 27 and having the liquid return cylinder portion 15 inserted and disposed in the liquid recovery recess 20. At the time of mounting, it consists of a dispensing nozzle 21 disposed inside the measuring cap 10 through the liquid return cylinder portion 15.
[0020]
The skirt wall portion 22 has an engaging uneven portion 28 on the inner peripheral surface of the lower end portion, and the main body cap 13 is pushed into the mouth neck portion 11 of the bottle container so that the engaging uneven portion 28 is made the base end of the mouth neck portion 11. The main body cap 13 is attached and fixed to the mouthpiece 11 of the bottle container by engaging with the engaged uneven portion 29 formed on the outer peripheral surface of the portion. Further, a female screw 31 formed on a skirt-like annular wall 30 of the measuring cap 10 to be described later is screwed into the male screw 25 of the male screw wall portion 24, and the male screw wall portion 24 together with the tray portion 27. A liquid recovery recess 20 is formed inside thereof.
[0021]
The tray part 27 is a bowl-shaped part that is inserted and arranged inside the mouthpiece part 11 of the bottle container. The bottom plate 26 that is inclined obliquely has a liquid return opening 32 located at the lowest part thereof. Is formed. When the measuring cap 10 is remounted, the excess liquid recovered from the measuring cap 10 to the liquid recovery recess 20 can be returned to the inside of the container body 12 through the liquid return opening 32. Yes. Further, a pouring nozzle 21 is provided at a central portion away from the peripheral portion of the bottom plate 26 so as to protrude from the bottom plate 26 to above the male screw wall portion 24. The pouring nozzle 21 communicates with an outflow opening 33 formed in the bottom plate 26 at the base end portion thereof, and through a distal end pouring port 34 having a smaller sectional shape than the pouring port 14 of the measuring cap 10. Liquid detergent can be smoothly poured into the measuring cap 10.
[0022]
According to the present embodiment, the measuring cap 10 attached to the mouthpiece 11 through the main body cap 13 is composed of two members, a lower member 18 and an upper member 19 formed by injection molding a transparent synthetic resin, for example. It is configured. Each of the lower member 18 and the upper member 19 has a shape designed so that the mold can be easily pulled out at the time of injection molding. The lower member 18 and the upper member 19 are joined and integrated through the annular joint 17 after molding, so that the liquid return cylinder 15 inserted and disposed in the liquid recovery recess 20 of the main body cap 13 at the time of mounting, and the liquid return The measuring cap 10 is configured to include a liquid reservoir bulging portion 16 that is connected and integrated with the cylindrical portion 15 and disposed above the main body cap 13.
[0023]
The lower member 18 has a liquid return cylinder portion 15 which is a cylindrical portion having an inner diameter D2 of, for example, φ26.6 mm, and an inner diameter of the liquid return cylinder portion 15 from the base end portion toward the liquid reservoir bulging portion 16. A connecting portion 35 having a portion extending obliquely while gradually expanding in diameter, and is suspended from the outer peripheral edge portion of the annular rib 43 projecting outward from the base end portion of the connecting portion 35, A skirt-like annular wall 30 having a female screw 31 on the peripheral surface is provided concentrically with the liquid return cylinder portion 15. The measuring cap 10 is detachably attached to the mouthpiece 11 by screwing the skirt-shaped annular wall 30 into the male screw wall portion 24 of the main body cap 13 provided with the male screw 25 on the outer peripheral surface. In addition, even if liquid detergent leaks from the spout 14 to the outer peripheral surface of the liquid return cylinder portion 15 by screwing and mounting the measuring cap 10 to the main body cap 13 through the female screw 31 of the annular wall 30, It is possible to effectively avoid the liquid detergent from adhering to the female screw 31 and to prevent the finger from becoming dirty when the measuring cap 10 is attached / detached.
[0024]
When the measuring cap 10 is screwed and attached until the lower surface of the annular rib 43 comes into contact with the upper end of the male screw wall portion 24 of the main body cap 13, the liquid return cylinder portion 15 has the spout 14 at the tip of the bottom of the tray portion 27. The length is provided near the face plate 26. Further, when the measuring cap 10 is screwed onto the main body cap 13, the opening peripheral portion of the spout 14 is a contact step portion formed on the inner peripheral surface of the tray portion 27 at the lower portion of the liquid recovery recess 20. 36 so that the contained liquid detergent or the like has a sealing function for preventing the liquid detergent or the like from flowing into the gap between the liquid recovery recess 20 on the outside of the liquid return cylinder 15. It comes to be effective. Furthermore, a scale for measurement is appropriately drawn on the outer peripheral surface or the inner peripheral surface of the liquid return cylinder portion 15 and the connection portion 35 connected thereto.
[0025]
According to the present embodiment, the liquid return cylinder portion 15 inserted into the main body cap 13 after measuring the internal liquid (liquid detergent or the like) with the measuring cap 10 has a shape that is inclined inward with a small undulation. Therefore, the content liquid adhering to the inner wall surface of the measuring cap 10 including the liquid reservoir inflating portion 16 can be easily returned to the inside of the container main body 12 via the main body cap 13. Further, the liquid return cylinder portion 15 is configured such that the opening peripheral portion of the spout 14 is in close contact with the contact stepped portion 36 to form a lower seal surface, and is double sealed together with the upper seal surface 37 to the main body cap 13. Therefore, it is possible to prevent liquid leakage more reliably. Further, a female screw 31 formed by an annular wall 30 is formed on the outer peripheral portion of the liquid return cylinder portion 15, and the female screw 31 of the annular wall 30 and the liquid return cylinder portion 15 are integrally fitted to the main body cap 15. By being attached (screwed), it is possible to prevent the measurement cap 10 from dropping more effectively by avoiding loose fitting of the liquid return cylinder portion 15 due to friction, adhesion of the content liquid, or the like. become.
[0026]
In addition, according to this embodiment, as shown in FIG. 2, the opening peripheral part of the front-end | tip of the pouring spout 14 of the liquid return cylinder part 15 is formed so that it may be provided with the trumpet mouth shape which curves so that it may fold outward. You can also. That is, according to the present embodiment, the lower member 18 provided with the liquid return cylinder portion 15 has a shape designed so that the mold can be easily removed during injection molding, for example. Such a trumpet shape can be easily formed on the peripheral edge portion of the spout 14. Moreover, since the opening peripheral part at the front-end | tip of the pouring spout 14 is a trumpet shape, the liquid cutting | disconnection in the opening peripheral part after pouring liquid detergent etc. out of the measurement cap 10 will be performed reliably and easily. This makes it possible to more effectively avoid the wraparound of the liquid detergent and the like, and does not contaminate the peripheral portion. Furthermore, it becomes easy to apply to the adhered part such as dirt, and an appropriate amount can be applied to a necessary part.
[0027]
As shown also in FIG. 1, the connecting portion 35 is a portion that is interposed between the liquid reservoir bulging portion 16 and the liquid return cylinder portion 15 and connects them, and from the proximal end portion of the return cylinder portion 15. The inclined portion 35a that extends obliquely and the vertical portion 35b that extends vertically in a portion close to the annular rib 43, the outer peripheral surface of the vertical portion 35b of the liquid recovery recess 20 when the measuring cap 10 is attached. An upper seal surface 37 that is in close contact with the inner peripheral surface of the upper end portion is formed. The measuring cap 10 is attached to the main body cap 13 while the upper end portion of the male screw wall portion 24 of the main body cap 13 is sandwiched between the upper sealing surface 37 and the inner side surface of the annular wall 30.
[0028]
The annular rib 43 is an annular portion provided at a step portion between the connection portion 35 and the liquid reservoir bulging portion 16 by the upper member 19, and the inner corner of the annular rib 43 can be smoothly connected at the step portion. The portion is disposed obliquely as a tapered portion 44. Further, a pair of sandwiching annular ribs 38 are provided on the upper surface of the annular rib 43 so as to protrude upward, and the insertion annular rib 41 of the upper member 19 is inserted and locked in the space between the sandwiching annular ribs 38. However, the upper member 19 is mounted and integrated with the lower member 18.
[0029]
According to the present embodiment, the outer sandwiched annular rib 38 is erected so that the outer peripheral surface thereof is flush with the outer peripheral surface of the annular wall 30, and is formed by these continuous outer peripheral surfaces. The upper outer peripheral surface 39 of the lower member 18 is fitted inside the joining skirt portion 40 provided at the lower portion of the upper member 19 so that the lower member 18 and the upper member 19 are joined and integrated. Will be configured. Further, on the outer peripheral surface 39 formed by the outer peripheral surface of the outer sandwiched annular rib 38 and the outer peripheral surface of the annular wall 30, a band-shaped locking recess (not shown) extending in the vertical direction is spaced apart in the circumferential direction. A plurality of them are provided. A plurality of strip-shaped locking projections (not shown) extending in the vertical direction on the inner side surface of the joining skirt portion 40 of the upper member 19 are locked to these band-shaped locking recesses, and the upper member 19 is locked. By mounting and integrating with the lower member 18, the relative rotational movement of the upper member 19 in the circumferential direction with respect to the lower member 18 can be effectively avoided.
[0030]
The upper member 19 has a liquid reservoir bulging portion 16 having a substantially bottomed cylindrical shape in which the inner diameter D3 of the body portion is, for example, φ36.0 mm, and the inner diameter is slightly increased from the lower end portion of the liquid reservoir bulging portion 16. And an insertion rib 41 extending downward and having the same diameter as the liquid reservoir bulging portion 16 on the inner side of the upper end of the joining skirt portion 40. Is provided.
[0031]
The liquid reservoir bulging portion 16 is a portion that is formed continuously with the liquid return cylinder portion 15 and the connecting portion 35 via the annular rib 43 and stores mainly liquid detergent to be measured. An outer diameter that is larger than the inner diameter D2 of the cylindrical portion 15 and the inner diameter D1 of the mouth neck portion 11 of the container body 12 and that fits in the region surrounded by the skirt wall portion 22 of the body cap 13 when viewed from above. It is formed to become. Further, the liquid bulging portion 16 has a flat shape in which the height H from the annular rib 43 is 32.0 mm, for example, and the height H is smaller than the inner diameter D3 of the liquid pool bulging portion 16. It has a stable appearance. Furthermore, the complicated uneven shape is hidden inside so that it cannot be seen from the outside, and has a simple external shape.
[0032]
The joining skirt portion 40 is a skirt-like portion that is disposed at the lower portion of the upper member 19 and that is inserted and fitted into the upper outer peripheral surface 39 of the lower member 18. However, the lower member 18 and the upper member 19 are joined and integrated so that the upper outer peripheral surface 39 is fitted inside. Further, a lower end fixing rib 42 is provided on the inner side surface of the lower end of the joining skirt portion 40 so as to protrude inward, and the annular wall of the lower member 18 that is fitted through the elastic deformation of the lower end opening of the joining skirt portion 40. By locking and fixing the lower end fixing rib 42 to the lower end edge portion of the 30, the upper member 19 and the lower member 18 are firmly fixed with the insertion rib 41 inserted and locked between the pair of sandwiched annular ribs 38. It is joined and integrated.
[0033]
And according to the measuring cap 10 of this embodiment which has the said structure, without extending the protrusion length from the mouth part 11 excessively, and without expanding the diameter of the mouth part 11 and the main body cap 13 in a cross direction. By increasing the capacity of the liquid reservoir portion, the capacity that can be measured by the measuring cap 10 can be easily increased, and the ease of measurement and the ease of molding can be improved. That is, according to the present embodiment, the measuring cap 10 has the liquid reservoir bulging portion 16 having an inner diameter D3 larger than the inner diameter D2 connected to the liquid return cylinder portion 15, so that the diameter is increased. The liquid reservoir bulging portion 16 makes it possible to easily increase the volume of liquid detergent that can be measured without excessively increasing the height of the liquid reservoir bulging portion 16 and making it unstable. Become.
[0034]
Further, since the capacity that can be measured is increased by expanding the diameter of the liquid bulging portion 16, the outer diameter of the liquid return cylinder portion 15 can be maintained at the same size as that of the conventional one. It is not necessary to expand the diameter of the body cap 13 in the transverse direction. Moreover, since it is not necessary to expand the diameter of the neck part 11 or the main body cap 13 in the transverse direction, it is possible to prevent a problem of liquid leakage due to dimensional instability that occurs when the diameter of the neck part 11 is expanded.
[0035]
Furthermore, according to the present embodiment, the outer diameter of the liquid reservoir bulging portion 16 is substantially the same as the outer diameter of the skirt wall portion 22 of the main body cap 13, so that it has a stable and simple appearance. In the operation for attaching and detaching the measuring cap 10 and the boxing process at the time of manufacturing the bottle container, it is possible to smoothly perform the operation for gripping the neck of the container. In addition, when changing the design of the capacity, it is possible to easily change the design of the capacity by replacing the liquid bulging portion 16 with the one whose capacity has been changed to the desired amount and mounting it on the liquid return cylinder portion 15. Become.
[0036]
Furthermore, according to the measuring cap 10 of the present embodiment, the lower member 18 and the upper member 19 which are divided into upper and lower parts have shapes designed so that the mold can be easily pulled out, and each is formed by injection molding. Since it can be easily formed, for example, compared with the case where the liquid reservoir bulging portion is formed by blow molding, it is possible to form it with high accuracy, and the degree of freedom for capacity change can be easily secured. It becomes possible.
[0037]
Further, according to the measuring cap 10 of the present embodiment, the liquid reservoir bulging portion 16 and the liquid return cylinder portion 15 are obliquely extended toward the liquid return cylinder portion 15 and the inner diameter thereof is gradually reduced. Since the connection portion 35 is connected and a large step portion is excluded in the connection portion 35, the step portion is sandwiched when the liquid detergent is injected into the measuring cap 10 through the dispensing nozzle 21. Effectively avoiding a sudden rise in liquid level due to a change in cross-sectional area, it is possible to obtain a smooth rise in liquid level, which makes it possible to easily obtain a desired volume of liquid detergent, softener, glue, etc. And it becomes possible to measure accurately. Further, when the measured liquid detergent is poured out, it is possible to effectively avoid the occurrence of liquid residue at the stepped portion. Further, since there is no stepped portion, the capacity that can be measured by the measuring cap 10 is increased, so that the diameter of the liquid reservoir bulging portion 16 and the extension in the height direction are increased as much as possible to increase the capacity that can be measured. It becomes possible to suppress.
[0038]
Further, according to the measuring cap 10 of the present embodiment, the capacity that can be measured can be increased without increasing the diameter of the main body cap 13 (the diameter of the neck 11 of the container main body). It is possible to reduce the amount of resin including the cap 13 and to reduce the dimensional variation of the molded product, which is very excellent in terms of quality such as liquid leakage.
[0039]
Furthermore, according to the measuring cap 10 of the present embodiment, the upper seal surface 37 of the connecting portion 35 is brought into close contact with the inner peripheral surface of the upper end portion of the liquid recovery recess 20 to seal the opening edge portion of the main body cap 13 during mounting. Therefore, there is no need to provide an inner ring to ensure the sealing performance, thereby reducing the mold and resin amount for the inner ring and simplifying the mold structure of the measuring cap 10 This makes it possible to reduce the price and improve the ease of forming the measuring cap 10, and the upper seal surface 37 is provided as a part of the connecting portion 35 having a considerable strength. Therefore, it is excellent in rigidity, and this makes it possible to easily ensure a strong sealing property.
[0040]
The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the liquid return cylinder part and the liquid reservoir bulge part of the measuring cap do not necessarily have to be cylindrical, and need not necessarily be screwed to the main body cap via a male screw or a female screw. Absent. Furthermore, the content liquid stored in the container body may be a liquid detergent, a softening agent, a paste, and other various liquid products that require weighing. Furthermore, the measuring cap does not necessarily have to be formed by joining and integrating the lower member and the upper member formed by injection molding via the annular joint, and the annular joint is, for example, above the upper end of the lower member. The member may be screw-fitted.
[0041]
【The invention's effect】
According to the measuring cap of the present invention, the capacity of the liquid reservoir is increased without excessively increasing the protruding length from the mouth and without expanding the main body cap in the transverse direction, and the measuring cap is used for measuring. The possible capacity can be easily increased, and the ease of weighing and the ease of molding can be improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a measuring cap according to an embodiment of the present invention in a mounted state on a mouth portion of a container body.
FIG. 2 is a cross-sectional view illustrating another embodiment of the measuring cap according to the embodiment of the present invention, in a state where the measuring cap is attached to the mouth portion of the container body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Measuring cap 11 Mouth part 12 Container main body 13 Main body cap 14 Spout 15 Liquid return cylinder part 16 Liquid storage bulging part 17 Annular junction part 18 Lower member 19 Upper member 20 Liquid recovery recessed part 35 Connection part 35a Inclination part 35b Vertical part 36 Abutting step 37 Upper seal surface 43 Annular rib

Claims

A measuring cap that is detachably attached to a body cap having a liquid recovery recess attached to the mouth portion of the container body,
A liquid return cylinder portion that is inserted and disposed in the liquid recovery recess portion of the main body cap at the time of mounting, with the tip spout facing downward, and is disposed above the liquid recovery recess portion connected to the liquid return cylinder portion. A liquid reservoir bulging portion having an inner diameter larger than the inner diameter of the liquid return cylinder portion,
A connecting portion that is interposed between and connected between the liquid reservoir bulging portion and the liquid return cylinder portion extends obliquely from the liquid reservoir bulge portion toward the liquid return cylinder portion. with gradually reduced in diameter to internal diameter has a vertical portion which extends vertically in the portion close to the reservoir bulging portion, the outer circumferential surface of the vertical portion, the recess for the liquid collected during mounting A measuring cap that constitutes a sealing surface that is in close contact with the inner peripheral surface of the upper end portion.

The measuring cap according to claim 1, wherein the liquid pool bulging portion has an inner diameter larger than an inner diameter of a mouth neck portion of the container body.

The measuring cap according to claim 1 or 2, which is obtained by forming a lower member and an upper member which are divided into upper and lower parts by injection molding, and joining and integrating them through an annular joint.

The measuring cap according to any one of claims 1 to 3, wherein an opening peripheral edge portion of the spout is in close contact with an abutting step portion provided on an inner peripheral surface of the liquid recovery recess during mounting.

The measuring cap according to any one of claims 1 to 4, wherein an opening peripheral edge portion of the spout has a trumpet shape that curves so as to be folded outward.