JP3636143B2

JP3636143B2 - Liquid insulation container

Info

Publication number: JP3636143B2
Application number: JP2002038774A
Authority: JP
Inventors: 光紀川村
Original assignee: Tiger Corp
Current assignee: Tiger Corp
Priority date: 2002-02-15
Filing date: 2002-02-15
Publication date: 2005-04-06
Anticipated expiration: 2022-02-15
Also published as: JP2003237808A

Description

【０００２】
【発明の属する技術分野】
【０００３】
本願発明は、液体保温容器の構造に関するものである。
【従来の技術】
【０００４】
最近では、飲料等の液体を収納して、保温（暖かく保温する場合と冷たく保温する場合の両方を含む）する液体容器にも種々の形態のものがある。中でも、例えば携帯用ステンレスボトル等の液体保温容器では、コップを使わずに直接注出口に口を付けて飲むことができる直飲み型のものが増えている。
【０００５】
そのような直飲み型ボトルの構造の一例を、図２８に示す。
【０００６】
該直飲み型ボトル１は、大きく分けて、先ず断熱保温機能を有するステンレス製の容器本体（ボトル本体）１Ａと、該容器本体（ボトル本体）１Ａの上端側開口部２ｃから肩部２ｂにかけて、その外周に嵌合固定された合成樹脂製の肩部材１Ｂと、該肩部材１Ｂの外周に着脱可能に螺合固定される飲口形成部材１Ｃと、該飲口形成部材１Ｃの上端側筒状の飲み口部４の外周に着脱可能に螺合され、同飲み口部４の開口部４ａを液体が漏出しないように閉じる断面ハット形の飲み口栓５よりなるキャップ部１Ｄとから構成されている。
【０００７】
先ず容器本体（ボトル本体）１Ａは、それぞれステンレス製の金属材料よりなり、内容器である内板１１ａと外装体である外板１１ｂとをそれらの間に真空断熱空間１１ｃを設けた状態で、その上端側口縁部同士を相互に接合一体化するとともに外板１１ｂの底部側の開口を封孔部を備えた同じくステンレス製の金属材料よりなる底板１１ｄを介して接合閉蓋して一体化することにより、図示のような上下方向に長い有底筒状の真空２重壁による断熱保温構造の飲料容器を形成している。この容器本体（ボトル本体）１Ａは、大径筒状の胴体部２ａと、該胴体部２ａの上部に肩部２ｂを介して所定寸法小径化して設けられた筒状の開口部２ｃとからなり、その底部２ｄには合成樹脂製の底部材３が下方側から嵌合固定されているとともに、他方上部側の肩部２ｂから開口部２ｃの外周には、上述のように合成樹脂製の肩部材１Ｂが上方側から嵌合固定されている。
【０００８】
この肩部材１Ｂは、上記容器本体（ボトル本体）１Ａの開口部２ｃの上縁部に対してシール用のパッキン８を介して外周側から嵌合される上端側断面逆Ｕ字状の開口部カバー部１２ａと、上記容器本体（ボトル本体）１Ａの肩部２ｂの外周をカバーするとともに、同肩部２ｂの下部外周面に形成された段部１１ｄに、その下部側縁部１２ｄを外周側から嵌合固定した開口部カバー部本体部１２ｂと、該開口部カバー部本体部１２ｂの側壁部外周面に設けられた飲み口形成部材１Ｃ回転時のガイドリブ１２ｃと、上記容器本体（ボトル本体）１Ａの肩部２ｂの段部１１ｄに嵌合される下部側縁部１２ｄと、上記開口部カバー部１２ａを有する上記開口部カバー部本体部１２ｂの半径方向内周側に所定の間隔を置いて２重筒壁状に上方から下方に延設され、その下部内周面側に上記容器本体（ボトル本体）１Ａ側開口部２ｃの外周面側に設けられた筒状の係合部材９の下端に下方側から係合して固定される爪部材１０を有する筒状の嵌合固定部材１４とから構成されている。上記爪部材１０は、上記筒状の嵌合固定部材１４の下部に周方向に所定の間隔で上下方向のスリ割を入れることにより、半径方向外方に曲げ変形が可能な弾性を有する構成となっており、嵌合操作時の嵌合作用がスムーズになるように構成されている。
【０００９】
一方、飲み口形成部材１Ｃは、上記肩部材１Ｂの開口部カバー部１２ａ外周面の螺合溝部の外周に対して螺合される螺合溝部を有し、上記肩部材１Ｂの開口部カバー部１２ａおよび開口部カバー部本体１２ｂ部分の外周に螺合固定される飲み口形成部材本体１５と、該飲み口形成部材本体１５の略水平な天板部１５ｂの中央部から上部に所定高さ突出して設けられた直接に口を付けて飲むのに最適な小径筒状の飲み口部４と、該飲み口部４の外周面に設けられた螺合溝部４ｂと、上記飲み口形成部材本体１５の天板部１５ｂの下面から上記容器本体（ボトル本体）１Ａの開口部２ｃ方向に若干突出された筒状のパッキン係止部１５ｅと、上記飲み口形成部材本体１５の肩部側面に設けられたグリップ部材嵌合部１５ｄとから構成されている。そして、上記グリップ部材嵌合部１５ｄには、肩部保護用のグリップ部材１６が嵌合固定されている。また、上記飲み口部４は、上記容器本体（ボトル本体）１Ａの開口部２ｃの中心軸位置に設けられている。
【００１０】
一方、上記飲み口形成部材本体１５の天板部１５ｂの外周部下面と上記筒状のパッキン係止部１５ｅ外周面との間のコーナー部には、上記飲み口形成部材本体１５の天板部１５ｂと上記開口部カバー部１２ａとの間を液密にシールするシール用のパッキン２１が設けられている。
【００１１】
さらに、上記キャップ部１Ｄは、上記飲み口形成部材１Ｃ上部の飲み口部４の上端側開口面に対してリング状のシール用パッキン１７を介して着脱可能に被冠されるとともに、下部側内周面の螺合部５ａを介して螺合固定される断面ハット形の飲み口栓５とから構成されている。上記飲み口栓５の天板部内側中央には、その軸方向位置固定用の筒状部５ｂが下方に立設され、その外周に上記リング状のシール用パッキン１７が嵌装されている。
【００１２】
また、符号５ｄは、上記飲み口栓５の外周面中央に形成されている無理嵌め用係合部、７ａは、上記外カバー部材７の内周面中央にに形成された上記飲み口栓５側の無理嵌め用係合部５ｄに対応して下方側から係合する無理嵌め用係合部である。
【００１３】
また、符号２５，２５は、携帯用ストラップ２６の左右一対の掛け止め部である。
【００１４】
したがって、該構成の場合、例えば上記飲み口部４の開口４ａを右回りの螺合でシールしている飲み口栓５を、例えば左に回すと、上記飲み口部４との間の螺合関係が解除されて、同飲み口栓５が、上記シール用パッキン８とともに上方に離脱されて、上記飲み口部４の開口４ａが開放される。
【００１５】
その結果、同飲み口部４に直接口を付けて、例えば上記容器本体（ボトル本体）１Ａの内容器内の冷水等を飲むことができる。従って、コップ等が要らず、携帯に便利である。
【００１６】
そして、飲み終われば、再び上記飲み口栓５を飲み口部４に螺合して、上記飲み口部４をシール用パッキン８で液密にシールして保存する。
【００１７】
また、以上の構成では、容器本体１Ａの肩部材１Ｂから、飲み口形成部材１Ｃ、キャップ１Ｄをそれぞれ分離して容器本体１Ａを含めて個別に丸洗いすることができ、洗浄が容易で衛生的である。
【発明が解決しようとする課題】
【００１８】
ところが、上記のような構成の場合、上記ボトル本体側肩部材１Ｂに対して、飲み口部４を一体に形成した飲み口形成部材１Ｃが、シール用のパッキン２１を介して相対的な螺合により締結固定されているだけであるから、上述のように飲み口部４に対する飲み口栓５の開閉操作を繰り返していると、使用時間の経過によっては飲み口栓５の開操作時の非螺合方向への回動力の作用により、次第に飲み口形成部材１Ｃの肩部材１Ｂとの螺合部の螺合状態が緩んでくる問題がある（螺合部の締結方向は同一である）。その結果、パッキン２１部分のシール性が悪化する。
【００１９】
これと類似の螺合部の緩みに対するシール性確保の問題は、例えば液体注出路の開閉にスクリュー栓構造を採用した断熱保温型のステンレスポットの場合にも生じる。すなわち、スクリュー栓の場合、一旦栓を閉めても螺合時の締結力が維持しにくく、それ自体で緩みやすい傾向がある。
【００２０】
本願発明は、このような問題を解決するためになされたもので、飲み口部を形成している飲み口形成部材やスクリュー栓部材等被螺合部材側に容器本体側開口部の開口面へのシール用パッキンとは別に、非螺合方向への回動力に対して制動力を作用させる制動力付与部材を設けて、上記のような螺合部の緩みを生じさせないようにした液体保温容器を提供することを目的とするものである。
【課題を解決するための手段】
【００２１】
本願発明は、上記の目的を達成するために、次のような課題解決手段を備えて構成されている。
【００２２】
（１）請求項１の発明
この発明の液体保温容器は、保温すべき液体が収容される断熱構造の容器本体と、該容器本体の開口部外周にシール用のパッキンを介して設けられた肩部材と、該肩部材の開口部外周にシール用のパッキンを介して螺合固定された飲み口形成部材と、該飲み口形成部材の上部に延設された飲み口部と、該飲み口部の外周にシール用のパッキンを介して螺合固定された飲み口栓とを備えてなる液体保温容器であって、上記飲み口形成部材の一部を上記容器本体の開口部内下方に延設するとともに、該延設部に、上記容器本体の開口部との間で相対回動時において制動力を作用させる制動力付与部材を設けたことを特徴としている。
【００２３】
このような構成の場合、飲み口形成部材と容器本体側肩部材とは、その螺合固定状態において、上記シール用パッキンのシール圧に基く接触抵抗と上記制動力付与部材の圧接力に基く接触抵抗との両方を合わせた大きな接触抵抗によって非螺合方向への回動力に対する制動力が付与されるようになる。
【００２４】
そのため、上記飲み口栓を繰り返し開方向に回動させたとしても、その回動力に優る十分な制止力が維持されるようになり、確実に飲み口形成部材の緩みが防止され、シール機能も確保される。
【００２５】
（２）請求項２の発明
この発明の液体保温容器は、上記請求項１記載の発明の構成において、制動力付与部材は、パッキン部材よりなることを特徴としている。
【００２６】
このような構成によれば、当該制動力を発揮する制動力付与部材がパッキンとしても機能するようになり、併せてシール機能をも発揮するので、容器本体の開口部と飲み口形成部材とのシール性能が向上する。
【００２７】
（３）請求項３の発明
この発明の液体保温容器は、上記請求項１記載の発明の構成において、制動力付与部材は、それが設けられている本体部分の螺合回動方向には付与する制動力が小さく、それとは逆の非螺合回動方向には付与する制動力が大きくなる、接線方向に傾斜した放射リブ構造の弾性体よりなることを特徴としている。
【００２８】
このような構成によれば、上記飲み口形成部材や上記栓部材は、上記肩部材や上記開口部カバー部材に対して螺合時には小さな接触抵抗でスムーズに螺合される一方、逆に戻し時には大きな接触抵抗に打ち勝たないと戻されないことになる。
【００２９】
そのため、栓部材の緩みは生じにくくなり、確実にシール機能が維持される。
【００３０】
（４）請求項４の発明
この発明の液体保温容器は、上記請求項１又は２記載の発明の構成において、飲み口部と飲み口栓との間をシールするパッキンのシール圧と肩部材の開口部と飲み口形成部材との間をシールするパッキンのシール圧との関係は、前者のシール圧よりも後者のパッキンのシール圧の方が大きく形成されていることを特徴としている。
【００３１】
このような構成によれば、上記請求項１又は２の発明における飲み口形成部材の肩部材に対する螺合状態の接触抵抗の方をさらに有効に増大させることができ、上述した飲み口形成部材の緩みを、より生じにくくすることができる。
【００３２】
（５）請求項５の発明
この発明の液体保温容器は、上記請求項１，２，３又は４記載の発明の構成において、飲み口形成部材の容器本体内下方への延設部は、当該飲み口形成部材の天板部から容器本体の開口部内下方に容器本体の開口部内周面に対して所定の間隔を保って延びる筒状体であることを特徴としている。
【００３３】
このような構成によれば、同筒状体を利用して、その外周に上記各制動力付与部材を容易に設けることができ、また容器本体側開口部の内周壁面との間に２重壁部が形成され、シールも行ないやすくなる。
【発明の効果】
【００３４】
以上の結果、本願発明の液体保温容器によると、螺合構造により分解、丸洗い可能な構造を採用した場合その他の場合において、飲み口部を形成している飲み口形成部材と容器本体側肩部材又はスクリュー栓部材と開口部カバー部材を介した容器本体側開口部との各螺合固定状態には、殆ど緩みを生じることなく、安定したシール固定状態を維持することができるようになる。
【発明の実施の形態】
【００３５】
（実施の形態１）
図１〜図１１は、例えば直飲み型のステンレスボトルとして構成した本願発明の実施の形態１に係る液体保温容器の構造を示している。
【００３６】
該液体保温容器としての直飲み型のボトル１は、大きく分けて、先ず断熱保温機能を有するステンレス製の容器本体（ボトル本体）１Ａと、該容器本体（ボトル本体）１Ａの上端側開口部２ｃから肩部２ｂにかけて、その外周に嵌合固定された合成樹脂製の肩部材１Ｂと、該肩部材１Ｂの外周に着脱可能に螺合固定される飲口形成部材１Ｃと、該飲口形成部材１Ｃの上端側筒状の飲み口部４の外周に着脱可能に螺合され、同飲み口部４の開口部４ａを内部の液体が漏出しないようにシール用パッキン１７を介して閉じる断面ハット形の飲み口栓５および該飲み口栓５の外周側下部にスライド回転自在に嵌合されたヒモ挿通リング６を同下部位置に位置固定する同じく断面ハット形の外カバー部材７よりなるキャップ部１Ｄとから構成されている。
【００３７】
先ず容器本体（ボトル本体）１Ａは、それぞれステンレス製の金属材料よりなり、内容器である内板１１ａと外装体である外板１１ｂとをそれらの間に真空断熱空間１１ｃを設けた状態で、その上端側口縁部同士を相互に接合一体化するとともに外板１１ｂの底部側の開口を封孔部を備えた同じくステンレス製の金属材料よりなる底板１１ｄを介して接合閉蓋して一体化することにより、図示のような上下方向に長い有底筒状の真空２重壁による断熱保温構造の飲料容器を形成している。この容器本体（ボトル本体）１Ａは、大径筒状の胴体部２ａと、該胴体部２ａの上部に肩部２ｂを介して所定寸法小径化して設けられた筒状の開口部２ｃとからなり、その底部２ｄには合成樹脂製の底部材３が下方側から嵌合固定されているとともに、他方上部側の肩部２ｂから開口部２ｃの外周には、上述のように合成樹脂製の肩部材１Ｂが上方側から嵌合固定されている。
【００３８】
この肩部材１Ｂは、上記容器本体（ボトル本体）１Ａの開口部２ｃの上縁部に対してシール用のパッキン８を介して外周側から嵌合される上端側断面逆Ｕ字状の開口部カバー部１２ａと、上記容器本体（ボトル本体）１Ａの肩部２ｂの外周をカバーするとともに、同肩部２ｂの下部外周面に形成された段部１１ｄに、その下部側縁部１２ｄを外周側から嵌合固定した開口部カバー部本体部１２ｂと、該開口部カバー部本体部１２ｂの側壁部外周面に設けられた飲み口形成部材１Ｃ回転時のガイドリブ１２ｃと、上記容器本体（ボトル本体）１Ａの肩部２ｂの段部１１ｄに嵌合される上記下部側縁部１２ｄと、上記開口部カバー部１２ａを有する上記開口部カバー部本体部１２ｂの半径方向内周側に所定の間隔を置いて２重筒壁状に上方から下方に延設され、その下部内周面側に上記容器本体（ボトル本体）１Ａ側開口部２ｃの外周面側に設けられた筒状の係合部材９の下端に下方側から係合して固定される爪部材１０を有する筒状の嵌合固定部材１４とから構成されている。上記爪部材１０は、上記筒状の嵌合固定部材１４の下部に周方向に所定の間隔で上下方向のスリ割を入れることにより、半径方向外方に曲げ変形が可能な弾性を有する構成となっており、嵌合操作時の嵌合作用がスムーズになるように構成されている。
【００３９】
一方、飲み口形成部材１Ｃは、上記肩部材１Ｂの開口部カバー部１２ａ外周面の螺合溝部１２ｅの外周に対して螺合される螺合溝部１５ａを有し、上記肩部材１Ｂの開口部カバー部１２ａおよび開口部カバー部本体１２ｂ部分の外周に螺合固定される飲み口形成部材本体１５と、該飲み口形成部材本体１５の略水平な天板部１５ｂから上部に所定高さ突出して設けられた直接に口を付けて飲むのに最適な小径筒状の飲み口部４と、該飲み口部４の外周面に設けられた螺合溝部４ｂと、上記飲み口形成部材本体１５の天板部１５ｂの下面から上記容器本体（ボトル本体）１Ａの開口部２ｃ内下方に所定の長さ延設された開口部２ｅよりも所定寸法小径の筒状部１５ｃと、上記飲み口形成部材本体１５の肩部側面に設けられたグリップ部材嵌合部１５ｄとから構成されている。そして、上記グリップ部材嵌合部１５ｄには、肩部保護用のグリップ部材１６が嵌合固定されている。また、本実施の形態の構成の場合、上記飲み口部４は、図示の如く上記容器本体（ボトル本体）１Ａの開口部２ｃの中心軸位置よりも所定距離半径方向外方に偏位して設けられ、残量が少なくなったような時にも飲みやすいように工夫されている。
【００４０】
一方、上記飲み口形成部材本体１５の天板部１５ｂの外周部下面と上記筒状部１５ｃの上端部外周面との間のコーナー部には、例えば図３〜図６に示すように、上記筒状部１５ｃの外周に嵌合固定される嵌合部２１ｂを有するリング状の本体部２１ａと同本体部２１ａの下部から断面Ｖ字状に延びる舌部２１ｃとから構成されていて、その舌部２１ｃにより上記飲み口形成部材本体１５の天板部１５ｂおよび筒状部１５ｃと上記開口部カバー部１２ａとの間を液密にシールする第１のパッキン２１が、また上記筒状部１５ｃの下端部外周には例えば図７〜図１０に示すように、上記筒状部１５ｃ外周のパッキン嵌合溝２０に嵌合固定される嵌合部２２ｂを有するリング状の本体部２２ａと、該本体部２２ａの下部から半径方向外方に湾曲して延びる断面Ｃ字状の舌部２２ｃによって、上記開口部２ｃの内周壁面に対して所定の圧接力を与えながら、同筒状部１５ｃと上記容器本体（ボトル本体）１Ａの開口部２ｃ内周壁面との間を液密にシールする第２のパッキン２２が、それぞれ接合又は嵌合して固定されている。上記第２のパッキン２２のリング状の本体部２２ａは、上記筒状部１５ｃ下端の嵌合溝２０に嵌合され、下方から固定リング２３を嵌合して固定されている。
【００４１】
さらに、上記キャップ部１Ｄは、上記飲み口形成部材１Ｃ上部の飲み口部４の上端側開口面に対して扁平なリング状のシール用パッキン１７を介して着脱可能に被冠されるとともに、その下部側内周面に形成された螺合部５ａを介して上記飲み口部４の外周面に形成された螺合部４ｂに螺合固定される断面ハット形の飲み口栓５と、該飲み口栓５の外周に一体に無理嵌めされるとともに軸回動方向に相互にセレーション係合されていて、上述のようにヒモ挿通リング６をスライド回転自在に位置固定する同じく断面ハット形の外カバー部材７とから構成されている。上記飲み口栓５の天板部内下面側中央には、その軸方向位置固定用の筒状部５ｂが下方に立設され、その外周に上記リング状のシール用パッキン１７が嵌装されている。また、同飲み口栓５の外周壁部下端には、半径方向外方に幅の広いフランジ部５ｃが設けられており、該フランジ部５ｃ上にスライド回転自在にヒモ挿通リング６を遊嵌し、上記外カバー部材７の下端との間で外れないように係止している。
【００４２】
また、符号５ｄは、上記飲み口栓５の外周面中央に形成されている無理嵌め用係合部、７ａは、上記外カバー部材７の内周面中央にに形成された上記飲み口栓５側の無理嵌め用係合部５ｄに対応して下方側から係合する無理嵌め用係合部である。また、符号６ａは、上記ヒモ挿通リング６のヒモ挿通孔部である。
【００４３】
また、符号２５，２５は、携帯用ストラップ２６の左右一対の掛け止め部であり、それぞれ携帯用ストラップ２６の両端側が係止されている。
【００４４】
したがって、該構成の場合、先ず右回りで螺合されている上記飲み口栓５を外カバー部材７を介して左回りに回動する。すると、やがて同飲み口栓５の上記飲み口部４との間の螺合関係が解除されて、同飲み口栓５が、上記外カバー部材７およびシール用パッキン８とともに一体に上方に離脱されて、上記飲み口部４の開口４ａが開放される。
【００４５】
この時、当該飲み口栓５と上記外カバー部材７とは、上記のようにヒモ挿通リング６を介して相互に一体化されており、ヒモ挿通リング６のヒモ挿通孔部６ａには、例えば図１１に示すように、ストラップ２６との連結ヒモ２９が挿通されて、本体側ストラップ２６につながれるようになっている。したがって、当該飲み口４から外された飲み口栓５等キャップ部１Ｄは、紛失することなく保持される。なお、符号２６ａはストラップ２６の止め金具２７側係止端部である。
【００４６】
上記の結果、上記キャップ部１Ｄが外された飲み口部４に直接口を付けて、例えば上記容器本体（ボトル本体）１Ａの内容器内の冷水等を飲むことができる。従って、コップ等が不要で、携帯に適している。
【００４７】
そして、飲み終われば、再び上記キャップ部１Ｄの飲み口栓５部分を飲み口部４に螺合して、上記飲み口部４を液密にシールして保存する。
【００４８】
また、以上の構成では、容器本体１Ａの肩部材１Ｂから、飲み口形成部材１Ｃ、キャップ１Ｄをそれぞれ分離して容器本体１Ａを含めて個別に丸洗いすることができるので、洗浄が容易で衛生的である。
【００４９】
ところが、上記のような構成の場合、そのままでは上記ボトル本体側肩部材１Ｂに対して、飲み口部４を一体に形成した飲み口形成部材１Ｃが、シール用のパッキン２１を介して相対的な螺合により締結固定されているだけであるから、上述のような飲み口部４に対する飲み口栓５の開閉操作を何度も繰り返していると、使用時間の経過によっては飲み口栓５の開操作時の非螺合方向への回動力の作用により、次第に飲み口形成部材１Ｃの肩部材１Ｂとの螺合部の螺合状態が緩んでくる問題が生じる。その結果、パッキン２１部分のシール性が悪化することが懸念される。
【００５０】
そこで、本実施の形態では、上記のように飲み口部４を形成している飲み口形成部材１Ｃ側に容器本体１Ａ側開口部２Ｃの開口面シール用の第１のパッキン２１とは別に、飲み口形成部材１Ｃの非螺合回動方向への回動力に対して制動力を作用させる制動力付与部材である第２のパッキン２２を設けて、上記のような螺合部の緩みを生じさせないようにしている。
【００５１】
このような構成の場合、飲み口形成部材１Ｃと容器本体１Ａ側肩部材１Ｂとは、その螺合固定状態において、上記シール用の第１のパッキン２１のシール圧に基く接触抵抗と上記制動力付与部材である第２のパッキン２２の圧接力に基く接触抵抗との両方を合わせた大きな接触抵抗によって非螺合回動方向への回動力に対する制動力が付与されるようになる。
【００５２】
そのため、上記飲み口栓５を繰り返し開方向に回動させたとしても、その回動力に優る十分な制止力が維持されるようになり、確実に飲み口形成部材１Ｃの緩みが防止され、シール機能も確保される。
【００５３】
しかも、制動力付与部材としての上記第２のパッキン２２は、断面Ｃ字状の舌部２２ｃを有したパッキン部材よりなっている。
【００５４】
したがって、当該制動力を発揮する制動力付与部材がパッキンとしても機能するようになり、併せてシール機能をも発揮するので、容器本体１Ａの開口部２ｃと飲み口形成部材１Ｃとのシール性能が一層向上するとともに、断熱保温作用も発揮する。
【００５５】
さらに、その場合において、上記の構成では、上記飲み口部４と飲み口栓５との間をシールするパッキン１７のシール圧と上記肩部材１Ｂを介した容器本体１Ａの開口部２ｃと飲み口形成部材１Ｃとの間をシールする第１のパッキン２１のシール圧との関係は、前者のシール圧よりも後者のシール圧の方が大きく形成されている。
【００５６】
このような構成によれば、上記飲み口形成部材１Ｃの肩部材１Ｂに対する螺合状態の接触抵抗の方をさらに有効に増大させることができ、上述した飲み口形成部材１Ｃの緩みを、より生じにくくすることができる。
【００５７】
（実施の形態２）
図１２は、やはり直飲み型のステンレスボトルとして構成した本願発明の実施の形態２に係る液体保温容器の構造を示している。
【００５８】
この実施の形態の液体保温容器は、上記実施の形態１の液体保温容器の構成に対し、そのキャップ１Ｄ部分の構造を若干改良したもので、上部が開放した筒状の外カバー部材３５を飲み口栓５の外周に係合リブ５ｅおよび係合片３５ａを介して嵌合固定するとともに、その下端側にストラップ２６との係止リング３７を係止し、さらに、それらの上部から回動操作部材３６の下部側筒状部３６ｄを嵌合して、その係合部３６ｂ部分を上記外カバー部材３５の内周壁下端に係合することによって相互に固定する。
【００５９】
さらに、その上で、上記回動操作部材３６の筒状部３６ｄの天板部下面側の下方に突出した筒部３６ａを上記飲み口栓５の天板部の筒状部５ｂ上面側に形成されている凹部５ｄ内に嵌合して軸方向位置を固定するとともに、その外周側の係合凸部を上記飲み口栓５の天板部上に設けた係合凹部５ｆに嵌合して回動方向にも係合固定する。そして、同回動操作部材３６の上部には、さらに円弧状の回動用把手部３６ａを設けて上記飲み口栓５を回動操作しやすくしている。
【００６０】
そして、それにより上記飲み口栓５部分を上記外カバー部材３５側の上記回動操作部材３６の把手部３６ａを介して右又は左に任意に回動操作することによって、楽に飲み口栓５を開閉できるようにしたことを特徴とするものである。
【００６１】
その他の部分の構成は、全て上記実施の形態１のものと同一である。
【００６２】
このような構成によると、上述した実施の形態１のものと同様の作用効果に加えて、上記飲み口栓５の最終的な締付力をアップしたとしても、次に開放する時には上記把手部３６ａを回すことによって比較的容易に開放することができるようになる。
【００６３】
（実施の形態３）
図１３〜図１５は、やはり直飲み型のステンレスボトルとして構成した本願発明の実施の形態３に係る液体保温容器の構造を示している。
【００６４】
この実施の形態の液体保温容器は、上記実施の形態１の液体保温容器の構成における肩部材１Ｂの開口部カバー部１２ａを介した容器本体１Ａの開口部２ｃに対するシール用の第１のパッキン２１を、例えば図１４に示すような構造のもの３１に、また同容器本体１Ａの開口部２ｃ内周壁面に圧接して回動時に制動力を作用させる制動用の第２のパッキン２２を、例えば図１５に示すような構造のもの３２に、それぞれ変更したことを特徴とするものである。
【００６５】
上記実施の形態１のシール用の第１のパッキン２１を、例えば図１４に示すような嵌合部３１ｂを有するリング状の本体部３１ａと、横方向に断面Ｖ字形状をなす舌部３１Ｃとを有するシール用パッキン３１にすると、上記飲み口形成部材１Ｃを上記肩部材１Ｂに螺合し、その天板部１５ｂの外周部下面と肩部材１Ｂ側開口部カバー部１２ａ上端との間に同シール用パッキン３１を挟み込んだ時に、舌部３１Ｃの上下２片が上下２枚構造に重合して挟み込まれるようになり、より弾圧力が高く、より十分なシール圧と接触抵抗とを有して挟着されることになる。
【００６６】
その結果、同部分のシール性能、制動性能が向上する。
【００６７】
また上記実施の形態１の制動用の第２のパッキン２２を、例えば図１５に示すような断面コ字状の制動用パッキン３２に変えると、結局上下に平行な２枚の舌部３２ｃ，３２ｄにより２重構造で容器本体１Ａの開口部２ｃの内周壁面と圧接されることになり、その制動力、シール性が、さらに向上する。
【００６８】
（実施の形態４）
図１６〜図１８は、やはり直飲み型のステンレスボトルとして構成した本願発明の実施の形態４に係る液体保温容器の構造を示している。
【００６９】
この実施の形態の液体保温容器は、上記実施の形態１の液体保温容器の構成における肩部材１Ｂの開口部カバー部１２ａを介した容器本体１Ａの開口部２ｃに対するシール用の第１のパッキン２１を、例えば図１７に示すような、肉厚の舌部で、リング状の本体部４１ａの下部側外周から一旦水平方向に延び、その後斜め上方から水平方向に折り曲がったクランク構造のもの４１に、また同容器本体１Ａの開口部２ｃの内周壁面に圧接して回動時に制動力を作用させる制動用の第２のパッキン２２を、例えば図１８に示す断面Ｔ字状の舌部４２Ｃが上下１枚構造のもの４２に、それぞれ変更したことを特徴としている。
【００７０】
上記のように、上述した実施の形態１のシール用の第１のパッキン２１を、図１７に示すような形状で厚肉の舌部４１Ｃを有するシール用パッキン４１にすると、飲み口形成部材１Ｃを肩部材１Ｂに螺合し、その天板部１５ｂの外周部下面と肩部材１Ｂ側開口部カバー部１２ａ上端との間に同シール用パッキン４１を挟み込んだ時に、剛性および弾圧力が高く、十分なシール圧と接触抵抗とを有して安定に挟着されることになる。
【００７１】
その結果、同部分のシール性能、制動性能が向上する。
【００７２】
また同様に制動用の第２のパッキン２２を、図１８の制動用パッキン４２に変えると、適切に容器本体１Ａの開口部２ｃの内周壁面と圧接されることになり、適切な制動力が得られる。
【００７３】
さらに、形状がシンプルで、製作が容易となる。
【００７４】
（実施の形態５）
図１９〜図２２は、やはり直飲み型のステンレスボトルとして構成した本願発明の実施の形態５に係る液体保温容器の構造を示している。
【００７５】
この実施の形態の液体保温容器は、上記実施の形態１の液体保温容器の構成における肩部材１Ｂの開口部カバー部１２ａを介した容器本体１Ａの開口部２ｃに対するシール用の第１のパッキン２１は同一のものを採用しているが、一方同容器本体１Ａの開口部２ｃの内周壁面に圧接して非螺合回動方向（戻り方向）への回動時に制動力を作用させる制動用の第２のパッキン２２を、例えば図２０〜図２２に示す放射リブ構造のもの５２に変更したことを特徴としている。
【００７６】
該構成の場合、飲み口形成部材１Ｃの非螺合回動方向への回動力に対して制動力を与える制動用の第２のパッキン５２が、図２０〜図２２に示すように、嵌合部５２ｂを有するリング状の本体５２ａの外周面に、同外周面から接線方向に傾斜曲成した放射状のリブ５２ｃ，５２ｃ・・・を設けて構成されており、それが設けられている本体部分、すなわち飲み口形成部材１Ｃの螺合回動方向（イ）には付与する制動力が小さく、非螺合回動方向（ロ）には付与する制動力が大きくなるように構成されている。
【００７７】
このような構成によれば、上記飲み口形成部材１Ｃは、肩部材１Ｂに対して螺合時には小さな接触抵抗でスムーズに螺合される一方、逆に戻し時には大きな接触抵抗を伴って戻されることになる。
【００７８】
そのため、飲み口栓５開操作時の緩みは生じにくくなり、飲み口形成部材１Ｃ螺合部の確実なシール機能が維持される。
【００７９】
（実施の形態６）
図２３は、例えばサーバータイプのステンレスポットとして構成した本願発明の実施の形態６に係る液体保温容器の構造を示している。
【００８０】
該液体容器５０は、例えばレストランやホテル等において、湯沸し後の湯を収納して保温したり、また内容器内に氷を入れて冷水を保存したりすることができるサーバータイプのステンレスポットとして構成されており、その液体注出口部および栓体部分を容器本体から分離して丸洗いすることができるようになっている。
【００８１】
そして、同液体容器５０は、大きく分けて、先ず断熱保温機能を有するステンレス製の容器本体（ポット本体）５０Ａと、該容器本体（ポット本体）５０Ａの上端側筒状の開口部６２Ｃの外周に第１の螺合部５４を介して螺合固定された筒状の開口部カバー部材（液体注出口形成部材）５０Ｂと、該筒状の開口部カバー部材５０Ｂの上端部内側に非螺合回動方向に回して緩められた時に液体注出路を形成するスクリュー溝構造の第２の螺合部５５を介して着脱可能に螺合固定され、上記容器本体（ポット本体）５０Ａの開口部６２Ｃを閉じる有底異径筒構造の栓部材５０Ｃと、該栓部材５０Ｃの上部側大径筒部（栓体部）５７ａの上端側開口部に一体に嵌合固定された栓カバー部材５０Ｄとから構成されている。
【００８２】
先ず上記容器本体（ポット本体）５０Ａは、それぞれステンレス製の金属材料よりなり、内容器である内板５１ａと外装体である外板５１ｂとを、それらの間に真空断熱空間５１ｃを設けた状態で、その上端側口縁部同士を相互に接合一体化するとともに、上記外板５１ｂの底部側開口部を封孔部を備えた同じくステンレス製の金属材料よりなる底板５１ｄを介して接合閉蓋して一体化することにより、図示のような幅の広い有底筒状の真空２重壁による断熱保温構造の液体容器を形成している。
【００８３】
この容器本体（ポット本体）５０Ａは、大径筒状の胴体部６２ａと、該胴体部６２ａの上部に位置して緩やかな湾曲面を描いて上昇する肩部６２ｂと、該肩部６２ｂを介して最上部中央に小径化して設けられた筒状の開口部６２ｃとからなり、その底部６２ｄの下面側には合成樹脂製の底部材６３が下方側から嵌合固定されているとともに、他方上部側の開口部６２ｃの外周には、上述のように合成樹脂製の筒状の開口部カバー部材５０Ｂが上述のように第１の螺合部５４を介して螺合固定されている。
【００８４】
この筒状の開口部カバー部材５０Ｂは、上記容器本体（ポット本体）５０Ａの開口部６２ｃの上縁部に対してシール用のパッキン６１を介して上部外周側から嵌合される所定半径分内側に突出した断面逆Ｕ字状の開口縁部カバー部６２と、上記容器本体（ポット本体）５０Ａの開口部６２Ｃの外周面に上記第１の螺合部５４を介して螺合固定される下部側第１の螺合筒部５６ａと、上記栓部材５０Ｃの大径筒部（栓体部）５７ａが上記第２の螺合部５５を介して螺合される上部側第２の螺合筒部５６ｂと、上記開口部カバー部材５０Ｂの側壁である上記第２の螺合筒部５６ｂ部分から水平方向に直交して開口延設された液体注出口（液体注出パイプ）６５とから構成されている。
【００８５】
他方、上記栓部材５０Ｃは、上記開口部カバー部材５０Ｂの上方側第２の螺合筒部５６ｂに対し、液体注出の可能なスクリュー溝よりなる第２の螺合部５５を介して螺合される大径の螺合筒部（栓体部）５７ａを備えた栓本体５７を中心として構成されており、該栓本体５７の底板部中央から下方には、筒状に延び、上記容器本体（ポット本体）５０Ａの開口部６２Ｃの内周壁面から半径方向内周側に所定の間隔を置いた同容器本体（ポット本体）５０Ａの開口部６２Ｃの内径よりも所定寸法小径の有底筒状のパッキン取付筒５７ｂが一体に設けられている。
【００８６】
一方、上記栓本体５７の大径筒部５７ａの底板部下面と上記パッキン取付筒５７ｂの上端外周面との間のコーナー部には、パッキン嵌合溝が設けられ、上記大径筒部５７ａの底板部および上記パッキン取付筒５７ｂと上記容器本体（ポット本体）５０Ａの開口縁部カバー部６２を介した開口部６２ｃとの間を液密にシールする上記実施の形態１のものと同様のシール用のパッキン２１が、また上記パッキン取付筒５７ｂの下端部外周にもパッキン嵌合溝が設けられ、同パッキン嵌合溝には同パッキン取付筒５７ｂと上記容器本体（ポット本体）５０Ａの開口部６２ｃ内周壁面との間にあって螺合回動方向には小さく非螺合回動方向には、大きい接触抵抗を作用させる上記実施の形態５のものと同様の放射状の制動リブ５２ｃ，５２ｃ・・・を設けた制動リブ５２が、それぞれ嵌合固定されている。
【００８７】
さらに、上記キャップ部１Ｄは、上方に突出した半休体よりなり、上記栓部材５０Ｃの大径筒部５７ａ上部の開口壁に対して一体に嵌合して固定されている。
【００８８】
したがって、該構成の場合、例えば上記キャップ部５０Ｄを指で回動操作することにより、上記栓部材５０Ｃを、例えば右に回すと、上記開口部カバー部材５０Ｂとの間のスクリュー溝構造の第２の螺合部５５での螺合関係が進行して、同栓部材５０Ｃの大径筒部（栓体部）５７ａの底板部が上記シール用のパッキン２１を介して上記容器本体（ポット本体）５０Ａ側の開口部カバー部５２の上端に圧接し、上記容器本体（ポット本体）５０Ａの開口部６２Ｃをシール状態に維持する。この場合、上記栓部材５０Ｃの制動リブ５２が制動力付与部材として作用するが、その制動リブ片５２ｃ，５２ｃ・・・は非螺合回動方向に向いて接線方向に傾斜しているので、当該螺合回動方向の制動力は小さくスムーズに回動される。
【００８９】
その結果、容器本体（ポット本体）５０Ａの内容器内の例えば冷水は、液体注出口６５側には、供給されず、注水は行えない状態となる。
【００９０】
そして、この状態では、上記容器本体（ポット本体）５０Ａの開口部６２Ｃに対しては、さらに上記パッキン取付筒５７ｂ下端の制動用リブ５２が所定の弾圧力を伴って圧接しており、先に実施の形態５の所で述べたように、同パッキン５２の複数の放射状の制動リブ５２ｃ，５２ｃ・・・は、ゴム等の弾性体よりなっていて、締付方向には緩やかに変形して滑かに回動を許すが、それとは逆の解除方向には突張り力を作用させて回動を阻止するように制動力を作用させる。
【００９１】
したがって、一旦栓部材５０Ｃの螺合が完了されると、以後栓部材５０Ｃは、解除されにくくなる。そのため、閉栓状態は安定し、転倒しても安全であり、確実なシール状態が維持される。
【００９２】
（実施の形態７）
図２４および図２５は、直飲み型のステンレスボトルとして構成した本願発明の実施の形態７に係る液体保温容器の構造を示している。
【００９３】
この実施の形態の液体保温容器は、基本的に上記実施の形態１〜５のものと同様の液体保温容器の構成において、その肩部材１Ｂの開口部カバー部１２ａを介した容器本体１Ａの開口部２ｃに対するシール用のパッキンとして、上記実施の形態３のものと同様のもの３１を採用し、そのシール圧および接触抵抗を、上記飲み口部４と飲み口栓５との間をシールするシール用パッキン１７のシール圧および接触抵抗よりも大きく形成したことを特徴としている。
【００９４】
このような構成の場合、飲み口形成部材１Ｃと容器本体側肩部材１Ｂとは、その螺合固定状態において、上記シール用パッキン３１，１７相互のシール圧および接触抵抗の差によって非螺合方向への回動力に対する制動力が付与されるようになる。
【００９５】
そのため、上記飲み口栓５を繰り返し開方向に回動させたとしても、飲み口形成部材１Ｃ側では、その回動力に優る十分な制止力が維持されるようになり、確実に飲み口形成部材１Ｃの肩部材１Ｂとの緩みが防止され、シール機能も確保される。
【００９６】
また、同構成では、上記シール用パッキン３１が嵌合される筒状部１５ｅが短かく形成され、その内周面側には補強用のリブ１５ｆ，１５ｆ，１５ｆが設けられている一方、外周面側にはシール用パッキン３１を取り出すための凹溝部１５ｇが設けられており、各部丸洗い時に上記シール用パッキン３１自体をも取り外して洗うことができるようになっている。
【００９７】
さらに、この場合において、上記飲み口形成部材１Ｃの天板部１５ｂ部分を、上記偏心した飲み口部４の方向に昇り傾斜させた円錐状傾斜面としてあり、直飲み時にスムーズに飲料が飲み口部４部分にガイドされるようになっている。
【００９８】
（変形例）
なお、この実施の形態７の構成における上記飲み口部分４の位置は、必ずしも上述のように一側方に偏心させる必要はなく、例えば図２６および図２７のように飲み口形成部材１Ｃの中心軸部分に位置させるようにしてもよいことはもちろんである。
【図面の簡単な説明】
【００９９】
【図１】本願発明の実施の形態１に係る液体保温容器の全体的な構造を示す断面図である。
【図２】同保温容器の飲み口部周辺の構造を示す拡大断面図である。
【図３】同保温容器の要部の一つである容器本体側肩部材の開口部と飲み口形成部材との間をシールするシール用パッキンの上面図である。
【図４】同パッキンの図３のＡ−Ａ線切断部断面図である。
【図５】同パッキンの下面図である。
【図６】同パッキンの一部拡大断面図である。
【図７】上記保温容器の要部の一つである容器本体の開口部内周壁面に圧接して飲み口形成部材の非螺合回動方向（戻り方向）への回動を阻止する制動用パッキン（制動力付与部材）の上面図である。
【図８】同制動用パッキンの図７のＢ−Ｂ線切断部断面図である。
【図９】同制動用パッキンの下面図である。
【図１０】同制動用パッキンの一部拡大断面図である。
【図１１】上記保温容器の要部（肩部付近）の外観斜視図である。
【図１２】本願発明の実施の形態２に係る液体保温容器の飲み口部周辺の構造を示す拡大断面図である。
【図１３】本願発明の実施の形態３に係る液体保温容器の飲み口部周辺の構造を示す拡大断面図である。
【図１４】同保温容器の要部の一つである容器本体側肩部材の開口部と飲み口形成部材との間をシールするシール用パッキンの断面図である。
【図１５】同保温容器の要部の一つである容器本体の開口部内周壁面に圧接して飲み口形成部材の非螺合回動方向（戻り方向）への回動を阻止する制動用パッキン（制動力付与部材）の断面図である。
【図１６】本願発明の実施の形態４に係る液体保温容器の飲み口部周辺の構造を示す一側部側の拡大断面図である。
【図１７】同保温容器の要部の一つである容器本体側肩部材の開口部と飲み口形成部材との間をシールするシール用パッキンの断面図である。
【図１８】同保温容器の要部の一つである容器本体の開口部内周壁面に圧接して飲み口形成部材の非螺合回動方向（戻り方向）への回動を阻止する制動用パッキン（制動力付与部材）の上面図である。
【図１９】本願発明の実施の形態５に係る液体保温容器の飲み口部周辺の構造を示す拡大断面図である。
【図２０】同保温容器の要部の一つである容器本体の開口部内周壁面に圧接して飲み口形成部材の非螺合回動方向（戻り方向）への回動を阻止する制動用リブ（制動力付与部材）の上面図である。
【図２１】同制動用リブの図２０のＣ−Ｃ線切断部断面図である。
【図２２】同制動用リブの容器本体の開口部内周壁面との関係を示す一部拡大上面図である。
【図２３】本願発明の実施の形態６に係る液体保温容器の全体構造を示す断面図である。
【図２４】本願発明の実施の形態７に係る液体保温容器の飲み口部周辺の構造を示す縦断面図である。
【図２５】同液体保温容器の飲み口部周辺の構造を示す水平断面図である。
【図２６】本願発明の実施の形態７の変形例に係る液体保温容器の飲み口部周辺要部の構造を示す縦面図である。
【図２７】同液体保温容器の飲み口部周辺要部の構造を示す水平断面図である。
【図２８】従来の液体保温容器の全体的な構造を示す断面図である。
【符号の説明】
【０１００】
１はボトル、１Ａは容器本体、１Ｂは肩部材、１Ｃは飲み口形成部材、１Ｄはキャップ部、２ａは胴体部、２ｂは肩部、２ｃは開口部、３は底部材、４は飲み口部、４ａは開口、４ｂは螺合部、５は飲み口栓、５ａは螺合部、５ｂは筒状部、５ｃはフランジ部、６はヒモ挿通リング、６ａはヒモ挿通孔部、７は外カバー部材、１１ａは内板、１１ｂは外板、１５ｃは筒状部、２１，３１，５１はシール用パッキン、２２，３２，４２は制動用パッキン、５２は制動用リブである。[0002]
BACKGROUND OF THE INVENTION
[0003]
The present invention relates to a structure of a liquid heat insulating container.
[Prior art]
[0004]
Recently, there are various types of liquid containers for storing liquids such as beverages and keeping warm (including both warm and cold). Among them, for example, a liquid heat-retaining container such as a portable stainless steel bottle is increasing in direct-drinking type that can be directly attached to the spout without using a cup.
[0005]
An example of the structure of such a direct drinking bottle is shown in FIG.
[0006]
The direct drinking bottle 1 is roughly divided into a stainless steel container main body (bottle main body) 1A having a heat insulation and heat retaining function, and from the upper end side opening 2c of the container main body (bottle main body) 1A to the shoulder 2b. A synthetic resin shoulder member 1B fitted and fixed to the outer periphery thereof, a mouthpiece forming member 1C that is detachably screwed to the outer periphery of the shoulder member 1B, and an upper end side tubular shape of the mouthpiece forming member 1C The cap portion 1D is formed of a hat-shaped tap portion 5 having a hat-shaped cross section that is detachably screwed to the outer periphery of the drinking portion 4 and closes the opening 4a of the drinking portion 4 so that liquid does not leak. Yes.
[0007]
First, the container main body (bottle main body) 1A is made of a metal material made of stainless steel, and the inner plate 11a as an inner container and the outer plate 11b as an outer package are provided with a vacuum heat insulating space 11c therebetween, The top edge portions are joined and integrated with each other, and the opening on the bottom side of the outer plate 11b is joined and closed through a bottom plate 11d made of a stainless steel metal material having a sealing portion. By doing so, a beverage container having a heat insulation and heat insulation structure is formed by a bottomed cylindrical vacuum double wall which is long in the vertical direction as shown in the figure. The container main body (bottle main body) 1A includes a large-diameter cylindrical body portion 2a, and a cylindrical opening 2c provided on the upper portion of the body portion 2a through a shoulder 2b with a predetermined size reduced. A bottom member 3 made of synthetic resin is fitted and fixed to the bottom 2d from the lower side, and a shoulder made of synthetic resin is provided from the shoulder portion 2b on the other upper side to the outer periphery of the opening 2c as described above. The member 1B is fitted and fixed from above.
[0008]
The shoulder member 1B is an opening having an inverted U-shaped cross section at the upper end side that is fitted from the outer peripheral side via a seal packing 8 to the upper edge of the opening 2c of the container body (bottle body) 1A. The outer periphery of the cover portion 12a and the shoulder portion 2b of the container body (bottle body) 1A is covered, and the lower edge 12d is formed on the outer peripheral side of the step portion 11d formed on the lower outer peripheral surface of the shoulder portion 2b. The opening cover part main body part 12b fitted and fixed from above, the guide rib 12c at the time of rotation of the drinking mouth forming member 1C provided on the outer peripheral surface of the side wall part of the opening cover part main body part 12b, and the container main body (bottle main body) A predetermined distance is provided between the lower edge portion 12d fitted to the step portion 11d of the shoulder portion 2b of 1A and the radially inner peripheral side of the opening cover body portion 12b having the opening cover portion 12a. Double cylinder wall from top to bottom It is engaged with the lower end of the cylindrical engagement member 9 provided on the outer peripheral surface side of the container main body (bottle main body) 1A side opening 2c on the lower inner peripheral surface side, and is fixed from the lower side. It is comprised from the cylindrical fitting fixing member 14 which has the nail | claw member 10. FIG. The claw member 10 has a configuration having elasticity that can be bent and deformed radially outward by inserting a slit in the vertical direction at a predetermined interval in the circumferential direction at the lower part of the cylindrical fitting and fixing member 14. It is comprised so that the fitting operation | movement at the time of fitting operation may become smooth.
[0009]
On the other hand, the drinking mouth forming member 1C has a screwing groove portion that is screwed to the outer periphery of the screwing groove portion on the outer peripheral surface of the opening portion cover portion 12a of the shoulder member 1B, and the opening portion cover portion of the shoulder member 1B. 12a and a mouthpiece forming member main body 15 that is screwed and fixed to the outer periphery of the opening portion cover main body 12b, and a central portion of the substantially horizontal top plate portion 15b of the mouthpiece forming member main body 15 projecting upward by a predetermined height. A small-diameter cylindrical drinking mouth portion 4 that is optimally provided for drinking with a mouth directly, a screwing groove portion 4b provided on the outer peripheral surface of the drinking mouth portion 4, and the drinking mouth forming member main body 15 A cylindrical packing locking portion 15e slightly protruding in the direction of the opening 2c of the container main body (bottle main body) 1A from the lower surface of the top plate portion 15b, and a shoulder side surface of the drinking mouth forming member main body 15. And a grip member fitting portion 15d. A grip member 16 for shoulder protection is fitted and fixed to the grip member fitting portion 15d. Moreover, the said drinking part 4 is provided in the center axis position of the opening part 2c of the said container main body (bottle main body) 1A.
[0010]
On the other hand, in the corner portion between the lower surface of the outer peripheral portion of the top plate portion 15b of the drinking mouth forming member main body 15 and the outer peripheral surface of the cylindrical packing engaging portion 15e, the top plate portion of the drinking mouth forming member main body 15 is provided. Sealing packing 21 is provided for liquid-tightly sealing between 15b and the opening cover portion 12a.
[0011]
Further, the cap portion 1D is removably crowned via a ring-shaped sealing packing 17 with respect to the upper opening side opening surface of the drinking mouth portion 4 above the drinking mouth forming member 1C, It is comprised from the cross-sectional hat-shaped drinking mouth stopper 5 screwed and fixed via the screwing part 5a of a surrounding surface. A cylindrical portion 5b for fixing the axial position of the drinking cap 5 is provided at the center on the inner side of the top plate portion, and the ring-shaped sealing packing 17 is fitted on the outer periphery thereof.
[0012]
Reference numeral 5d denotes a forced fitting engaging portion formed at the center of the outer peripheral surface of the drinking spout 5, and 7a denotes the drinking spout 5 formed at the center of the inner peripheral surface of the outer cover member 7. This is an engaging portion for forcibly fitting that is engaged from the lower side corresponding to the forcibly engaging portion 5d on the side.
[0013]
Reference numerals 25 and 25 denote a pair of left and right latching portions of the portable strap 26.
[0014]
Therefore, in the case of this configuration, for example, when the spout stopper 5 that seals the opening 4a of the spout portion 4 with a clockwise screwing is turned, for example, counterclockwise, it is screwed with the spout portion 4 The relationship is released, and the tap 5 is removed upward together with the seal packing 8, and the opening 4a of the tap 4 is opened.
[0015]
As a result, a mouth can be directly attached to the drinking mouth part 4 to drink, for example, cold water in the inner container of the container body (bottle body) 1A. Therefore, a cup or the like is not required and it is convenient to carry.
[0016]
When the drinking is finished, the drinking tap 5 is screwed into the drinking mouth portion 4 again, and the drinking mouth portion 4 is liquid-tightly sealed with the seal packing 8 and stored.
[0017]
In the above configuration, the drinking mouth forming member 1C and the cap 1D can be separated from the shoulder member 1B of the container main body 1A and individually washed with the container main body 1A. The cleaning is easy and hygienic. is there.
[Problems to be solved by the invention]
[0018]
However, in the case of the above configuration, the drinking mouth forming member 1C, in which the drinking mouth portion 4 is formed integrally with the bottle body side shoulder member 1B, is relatively screwed through the seal packing 21. As described above, when the opening / closing operation of the drinking spout 5 with respect to the drinking spout 4 is repeated, depending on the elapsed time of use, the non-screwing during the opening operation of the drinking spout 5 may be performed. There is a problem that the screwing state of the screwing portion with the shoulder member 1B of the drinking mouth forming member 1C is gradually loosened due to the action of the rotational force in the mating direction (the fastening direction of the screwing portion is the same). As a result, the sealing performance of the packing 21 portion is deteriorated.
[0019]
A similar problem of ensuring sealing performance against loosening of the threaded portion also occurs, for example, in the case of an adiabatic and heat-insulating stainless steel pot that employs a screw plug structure for opening and closing the liquid pouring path. That is, in the case of a screw stopper, even if the stopper is once closed, it is difficult to maintain the fastening force at the time of screwing and tends to be loosened by itself.
[0020]
The invention of the present application was made to solve such problems. To the opening surface of the container body side opening portion on the side of the member to be screwed such as the mouthpiece forming member and screw plug member forming the mouthpiece portion. In addition to the seal packing, a liquid heat retaining container provided with a braking force applying member that applies a braking force to the rotational force in the non-screwing direction so as not to cause loosening of the screwing portion as described above. Is intended to provide.
[Means for Solving the Problems]
[0021]
In order to achieve the above object, the present invention is configured with the following problem solving means.
[0022]
(1) Invention of Claim 1
The liquid heat retaining container of the present invention includes a container body having a heat insulating structure in which a liquid to be warmed is stored, a shoulder member provided on the outer periphery of the opening of the container body via a seal packing, and an opening of the shoulder member A mouthpiece forming member screwed and fixed to the outer periphery of the mouth portion via a seal packing, a mouth portion extending on the top of the mouth portion forming member, and a seal packing on the outer periphery of the mouth portion A liquid heat insulating container provided with a drinking spout screwed through, extending a part of the drinking mouth forming member in the lower part of the opening of the container body, and in the extending part, A braking force applying member for applying a braking force at the time of relative rotation with the opening of the container body is provided.
[0023]
In such a configuration, the drinking mouth forming member and the container body side shoulder member are in contact with each other based on the contact resistance based on the seal pressure of the seal packing and the pressure contact force of the braking force applying member in the screwed and fixed state. A braking force against the turning force in the non-threading direction is applied by a large contact resistance that combines both the resistance and the resistance.
[0024]
For this reason, even if the spout is repeatedly rotated in the opening direction, a sufficient restraining force superior to the turning force is maintained, the slack of the spout forming member is reliably prevented, and the sealing function is also achieved. Secured.
[0025]
(2) Invention of Claim 2
The liquid heat retaining container according to the present invention is characterized in that, in the configuration of the first aspect of the present invention, the braking force applying member is a packing member.
[0026]
According to such a configuration, the braking force applying member that exerts the braking force functions as a packing, and also exhibits a sealing function, so the opening of the container body and the drinking mouth forming member Sealing performance is improved.
[0027]
(3) Invention of Claim 3
In the liquid heat insulation container according to the first aspect of the present invention, the braking force applying member has a small braking force applied in the screwing rotation direction of the main body portion on which the braking force applying member is provided. In the reverse non-screwing rotation direction, a braking force to be applied is increased, and the elastic rib is configured to have a radiating rib structure inclined in a tangential direction.
[0028]
According to such a configuration, the drinking mouth forming member and the plug member are smoothly screwed to the shoulder member and the opening cover member with a small contact resistance when screwed, and conversely when returned. It will not be returned unless the large contact resistance is overcome.
[0029]
For this reason, the plug member is hardly loosened, and the sealing function is reliably maintained.
[0030]
(4) Invention of Claim 4
The liquid heat insulation container according to the present invention is the above-mentioned claim 1 or. Is 2 In the configuration of the invention described above, the relationship between the seal pressure of the packing that seals between the mouthpiece and the mouthpiece stopper and the seal pressure of the seal that seals between the opening of the shoulder member and the mouthpiece forming member, The seal pressure of the latter packing is formed larger than the seal pressure of the former.
[0031]
According to such a configuration, the above-mentioned claim 1 Or 2 According to the invention, the contact resistance in the screwed state with respect to the shoulder member of the drinking mouth forming member can be further effectively increased, and the above-described loosening of the drinking mouth forming member can be made less likely to occur.
[0032]
(5) Invention of Claim 5
The liquid thermal insulation container according to the present invention is the above-mentioned claim 1, 2, or 3. 3 or 4 In the configuration of the described invention, the extending portion of the drinking mouth forming member to the lower side in the container main body is from the top plate portion of the drinking mouth forming member to the lower inside of the opening of the container main body with respect to the inner peripheral surface of the opening of the container main body. It is characterized by being a cylindrical body extending at a predetermined interval.
[0033]
According to such a configuration, each of the braking force applying members can be easily provided on the outer periphery of the cylindrical body, and the double body is provided between the inner peripheral wall surface of the container body side opening. A wall portion is formed, and sealing is also facilitated.
【The invention's effect】
[0034]
As a result of the above, according to the liquid heat insulation container of the present invention, when adopting a structure that can be disassembled and washed by screwing structure, in other cases, a drinking mouth forming member that forms a drinking mouth portion and a container body side shoulder member Alternatively, a stable seal fixing state can be maintained with almost no loosening in each screwed fixing state between the screw plug member and the container body side opening through the opening cover member.
DETAILED DESCRIPTION OF THE INVENTION
[0035]
(Embodiment 1)
FIGS. 1-11 has shown the structure of the liquid thermal insulation container which concerns on Embodiment 1 of this invention comprised, for example as a direct drinking type stainless steel bottle.
[0036]
The directly drinking type bottle 1 as the liquid heat retaining container is roughly divided into a stainless steel container body (bottle body) 1A having a heat insulation and heat retaining function, and an upper end side opening 2c of the container body (bottle body) 1A. A shoulder member 1B made of synthetic resin fitted and fixed to the outer periphery of the shoulder member 2b, a mouthpiece forming member 1C screwed and fixed to the outer periphery of the shoulder member 1B, and the mouthpiece forming member A cross-sectional hat shape that is detachably screwed to the outer periphery of the upper end side cylindrical drinking mouth portion 4 of 1C and closes the opening portion 4a of the drinking mouth portion 4 via a seal packing 17 so that the liquid inside does not leak out. And a cap part 1D comprising a hat-shaped outer cover member 7 having a hat-shaped cross section for fixing the strap insertion ring 6 slidably and rotatably fitted to the lower part of the outer periphery of the drinking stopper 5 to the same lower position. And consists of .
[0037]
First, the container main body (bottle main body) 1A is made of a metal material made of stainless steel, and the inner plate 11a as an inner container and the outer plate 11b as an outer package are provided with a vacuum heat insulating space 11c therebetween, The top edge portions are joined and integrated with each other, and the opening on the bottom side of the outer plate 11b is joined and closed through a bottom plate 11d made of a stainless steel metal material having a sealing portion. By doing so, a beverage container having a heat insulation and heat insulation structure is formed by a bottomed cylindrical vacuum double wall which is long in the vertical direction as shown in the figure. The container main body (bottle main body) 1A includes a large-diameter cylindrical body portion 2a, and a cylindrical opening 2c provided on the upper portion of the body portion 2a through a shoulder 2b with a predetermined size reduced. A bottom member 3 made of synthetic resin is fitted and fixed to the bottom 2d from the lower side, and a shoulder made of synthetic resin is provided from the shoulder portion 2b on the other upper side to the outer periphery of the opening 2c as described above. The member 1B is fitted and fixed from above.
[0038]
The shoulder member 1B is an opening having an inverted U-shaped cross section at the upper end side that is fitted from the outer peripheral side via a seal packing 8 to the upper edge of the opening 2c of the container body (bottle body) 1A. The outer periphery of the cover portion 12a and the shoulder portion 2b of the container body (bottle body) 1A is covered, and the lower edge 12d is formed on the outer peripheral side of the step portion 11d formed on the lower outer peripheral surface of the shoulder portion 2b. The opening cover part main body part 12b fitted and fixed from above, the guide rib 12c at the time of rotation of the drinking mouth forming member 1C provided on the outer peripheral surface of the side wall part of the opening cover part main body part 12b, and the container main body (bottle main body) A predetermined interval is provided between the lower edge portion 12d fitted to the step portion 11d of the shoulder portion 2b of 1A and the radially inner peripheral side of the opening cover body portion 12b having the opening cover portion 12a. From the top to the bottom of a double cylinder wall And is engaged and fixed from the lower side to the lower end of a cylindrical engagement member 9 provided on the outer peripheral surface side of the container main body (bottle main body) 1A side opening 2c on the lower inner peripheral surface side thereof. It is comprised from the cylindrical fitting fixing member 14 which has the nail | claw member 10 made. The claw member 10 has a configuration having elasticity that can be bent and deformed radially outward by inserting a slit in the vertical direction at a predetermined interval in the circumferential direction at the lower part of the cylindrical fitting and fixing member 14. It is comprised so that the fitting operation | movement at the time of fitting operation may become smooth.
[0039]
On the other hand, the drinking mouth forming member 1C has a screwing groove portion 15a that is screwed into the outer periphery of the screwing groove portion 12e on the outer peripheral surface of the opening portion cover portion 12a of the shoulder member 1B, and the opening portion of the shoulder member 1B. A drinking mouth forming member main body 15 screwed and fixed to the outer periphery of the cover portion 12a and the opening cover main body 12b, and a predetermined height projecting from a substantially horizontal top plate portion 15b of the drinking mouth forming member main body 15 The provided small-diameter cylindrical drinking mouth portion 4 that is optimal for drinking with a mouth directly provided, the screwing groove portion 4b provided on the outer peripheral surface of the drinking mouth portion 4, and the drinking mouth forming member main body 15 A cylindrical portion 15c having a smaller diameter than the opening 2e extending a predetermined length from the lower surface of the top plate portion 15b downward in the opening 2c of the container main body (bottle main body) 1A, and the drinking mouth forming member Grip member fitting part provided on the shoulder side surface of the main body 15 It is composed of a 5d. A grip member 16 for shoulder protection is fitted and fixed to the grip member fitting portion 15d. In the case of the configuration of the present embodiment, the drinking mouth portion 4 is displaced radially outward by a predetermined distance from the central axis position of the opening 2c of the container main body (bottle main body) 1A as shown in the figure. It is provided and devised so that it is easy to drink even when the remaining amount is low.
[0040]
On the other hand, in the corner portion between the lower surface of the outer peripheral portion of the top plate portion 15b of the mouthpiece forming member main body 15 and the outer peripheral surface of the upper end portion of the cylindrical portion 15c, for example, as shown in FIGS. The ring-shaped main body portion 21a having a fitting portion 21b fitted and fixed to the outer periphery of the cylindrical portion 15c and a tongue portion 21c extending in a V-shaped cross section from the lower portion of the main body portion 21a. The first packing 21 that seals the top plate portion 15b and the cylindrical portion 15c of the drinking mouth forming member main body 15 and the opening cover portion 12a in a liquid-tight manner by the portion 21c is also provided on the cylindrical portion 15c. For example, as shown in FIGS. 7 to 10 at the outer periphery of the lower end portion, a ring-shaped main body portion 22a having a fitting portion 22b fitted and fixed to the packing fitting groove 20 on the outer periphery of the cylindrical portion 15c, and the main body Curved radially outward from the bottom of the portion 22a The cylindrical portion 15c and the inner periphery of the opening 2c of the container main body (bottle main body) 1A while giving a predetermined pressure contact force to the inner peripheral wall surface of the opening 2c by the tongue portion 22c having a C-shaped cross section A second packing 22 that seals between the wall surfaces in a liquid-tight manner is joined or fitted and fixed. The ring-shaped main body portion 22a of the second packing 22 is fitted into the fitting groove 20 at the lower end of the cylindrical portion 15c, and is fixed by fitting a fixing ring 23 from below.
[0041]
Further, the cap portion 1D is removably crowned through a ring-shaped sealing packing 17 that is flat with respect to the upper end side opening surface of the drinking mouth portion 4 above the drinking mouth forming member 1C. A drinking cap 5 having a hat-shaped cross section that is screwed and fixed to a screwing portion 4b formed on the outer peripheral surface of the drinking mouth portion 4 via a screwing portion 5a formed on the lower inner peripheral surface; An outer cover having the same cross-sectional hat shape, which is forcibly fitted integrally with the outer periphery of the spigot 5 and is serrated and engaged with each other in the axial rotation direction so that the string insertion ring 6 is slidably fixed in position as described above. It is comprised from the member 7. FIG. A cylindrical portion 5b for fixing the axial position of the drinking cap 5 is provided at the center on the lower surface side of the top plate portion, and the ring-shaped sealing packing 17 is fitted on the outer periphery thereof. . Further, a flange portion 5c having a wide width radially outward is provided at the lower end of the outer peripheral wall portion of the drinking spout 5 and a string insertion ring 6 is loosely fitted on the flange portion 5c so as to be slidably rotatable. The outer cover member 7 is locked so as not to be detached from the lower end.
[0042]
Reference numeral 5d denotes a forced fitting engaging portion formed at the center of the outer peripheral surface of the drinking spout 5, and 7a denotes the drinking spout 5 formed at the center of the inner peripheral surface of the outer cover member 7. This is an engaging portion for forcibly fitting that is engaged from the lower side corresponding to the forcibly engaging portion 5d on the side. Reference numeral 6a denotes a string insertion hole portion of the string insertion ring 6.
[0043]
Reference numerals 25 and 25 denote a pair of left and right latching portions of the portable strap 26, and both ends of the portable strap 26 are locked.
[0044]
Therefore, in the case of this configuration, the drinking tap 5 that is screwed clockwise is first rotated counterclockwise via the outer cover member 7. Then, the screwing relationship between the drinking mouth plug 5 and the drinking mouth portion 4 is eventually released, and the drinking mouth stopper 5 is detached upward together with the outer cover member 7 and the seal packing 8. Thus, the opening 4a of the drinking mouth part 4 is opened.
[0045]
At this time, the drinking spout 5 and the outer cover member 7 are integrated with each other through the string insertion ring 6 as described above, and the string insertion hole 6a of the string insertion ring 6 includes, for example, As shown in FIG. 11, a connection string 29 with the strap 26 is inserted and connected to the main body side strap 26. Therefore, the cap portion 1D such as the spout stopper 5 removed from the spout 4 is held without being lost. Reference numeral 26 a denotes a locking end side of the strap 26 on the side of the stopper 27.
[0046]
As a result, a mouth can be directly attached to the drinking mouth part 4 from which the cap part 1D is removed, and for example, cold water or the like in the inner container of the container body (bottle body) 1A can be drunk. Therefore, a cup or the like is unnecessary and it is suitable for carrying.
[0047]
Then, when drinking is finished, the drinking mouth plug 5 portion of the cap portion 1D is again screwed into the drinking mouth portion 4, and the drinking mouth portion 4 is liquid-tightly sealed and stored.
[0048]
Further, in the above configuration, the drinking mouth forming member 1C and the cap 1D can be separated from the shoulder member 1B of the container main body 1A and individually washed with the container main body 1A. It is.
[0049]
However, in the case of the configuration as described above, the drinking mouth forming member 1C in which the drinking mouth portion 4 is formed integrally with the bottle main body side shoulder member 1B is relative to the bottle body side shoulder member 1B as it is through the seal packing 21. Since it is only fastened and fixed by screwing, if the opening and closing operation of the drinking spout 5 with respect to the drinking spout 4 as described above is repeated many times, the opening of the drinking spout 5 may be opened depending on the usage time. Due to the action of the rotational force in the non-screwing direction at the time of operation, there arises a problem that the screwing state of the screwing portion with the shoulder member 1B of the drinking mouth forming member 1C gradually becomes loose. As a result, there is a concern that the sealing performance of the packing 21 portion is deteriorated.
[0050]
Therefore, in the present embodiment, apart from the first packing 21 for sealing the opening surface of the container body 1A side opening 2C on the mouth opening forming member 1C side forming the mouth opening 4 as described above, A second packing 22 that is a braking force applying member that applies a braking force to the rotational force of the drinking mouth forming member 1C in the non-screwing rotation direction is provided to cause loosening of the screwing portion as described above. I try not to let you.
[0051]
In the case of such a configuration, the drinking mouth forming member 1C and the container main body 1A side shoulder member 1B have contact resistance and braking force based on the seal pressure of the first packing 21 for sealing in the screwed and fixed state. Due to the large contact resistance that combines both the contact resistance based on the pressure contact force of the second packing 22 as the applying member, a braking force against the turning force in the non-screwing rotation direction is applied.
[0052]
Therefore, even if the drinking spout 5 is repeatedly rotated in the opening direction, a sufficient restraining force superior to the turning force can be maintained, and the loosening of the drinking spout forming member 1C can be reliably prevented and the seal Function is also secured.
[0053]
And the said 2nd packing 22 as a braking force provision member consists of a packing member which has the tongue part 22c of C-shaped cross section.
[0054]
Therefore, the braking force application member that exerts the braking force functions as a packing, and also exhibits a sealing function. Therefore, the sealing performance between the opening 2c of the container body 1A and the drinking mouth forming member 1C is improved. In addition to further improvement, it also exhibits heat insulation and heat retention.
[0055]
Furthermore, in that case, in the above-described configuration, the sealing pressure of the packing 17 that seals between the mouthpiece portion 4 and the mouthpiece stopper 5, the opening 2c of the container body 1A via the shoulder member 1B, and the mouthpiece Regarding the relationship with the seal pressure of the first packing 21 that seals between the forming member 1C, the latter seal pressure is formed larger than the former seal pressure.
[0056]
According to such a configuration, the contact resistance in the screwed state with respect to the shoulder member 1B of the drinking mouth forming member 1C can be further effectively increased, and the above-described loosening of the drinking mouth forming member 1C is further generated. Can be difficult.
[0057]
(Embodiment 2)
FIG. 12 shows the structure of a liquid heat insulating container according to Embodiment 2 of the present invention, which is also configured as a direct drinking type stainless steel bottle.
[0058]
The liquid heat insulating container of this embodiment is a slightly improved structure of the cap 1D portion with respect to the structure of the liquid heat insulating container of the first embodiment. The stopper 5 is fitted and fixed to the outer periphery of the spigot 5 via the engaging rib 5e and the engaging piece 35a, and the locking ring 37 with the strap 26 is locked to the lower end thereof, and further, the rotation operation is performed from the upper part thereof. The lower side cylindrical portion 36d of the member 36 is fitted, and the engaging portion 36b portion is engaged with the lower end of the inner peripheral wall of the outer cover member 35 to be fixed to each other.
[0059]
Further, a cylindrical portion 36a protruding downward on the lower surface side of the top plate portion of the cylindrical portion 36d of the rotating operation member 36 is formed on the upper surface side of the cylindrical portion 5b of the top plate portion of the drinking spout 5. The recessed portion 5d is fitted to fix the position in the axial direction, and the engaging convex portion on the outer peripheral side is fitted to the engaging recessed portion 5f provided on the top plate portion of the drinking spout 5 Engage and fix in the direction of rotation. Further, an arcuate turning handle 36a is further provided on the upper part of the turning operation member 36 so that the drinking plug 5 can be easily turned.
[0060]
Then, the drinking spigot 5 can be easily moved by rotating the drinking spigot 5 part to the right or the left via the handle portion 36a of the turning operation member 36 on the outer cover member 35 side. It is characterized in that it can be opened and closed.
[0061]
The rest of the configuration is the same as that of the first embodiment.
[0062]
According to such a configuration, in addition to the same function and effect as those of the first embodiment described above, even if the final tightening force of the drinking spout 5 is increased, the handle portion is required to be opened next time. It can be opened relatively easily by turning 36a.
[0063]
(Embodiment 3)
13 to 15 show the structure of the liquid heat insulating container according to the third embodiment of the present invention, which is also configured as a direct drinking type stainless steel bottle.
[0064]
The liquid heat insulation container of this embodiment is a first packing 21 for sealing against the opening 2c of the container main body 1A through the opening cover 12a of the shoulder member 1B in the configuration of the liquid heat insulation container of the first embodiment. For example, a second packing 22 for braking that presses against the inner peripheral wall surface of the opening 2c of the container body 1A and applies a braking force when rotating is provided, for example, on a structure 31 as shown in FIG. The present invention is characterized in that the structure 32 is changed as shown in FIG.
[0065]
The first packing 21 for sealing according to the first embodiment includes, for example, a ring-shaped main body portion 31a having a fitting portion 31b as shown in FIG. 14, and a tongue portion 31C having a V-shaped cross section in the lateral direction. When the sealing packing 31 having the above is used, the drinking mouth forming member 1C is screwed into the shoulder member 1B, and the same is provided between the lower surface of the outer peripheral portion of the top plate portion 15b and the upper end of the shoulder member 1B side opening cover portion 12a. When the seal packing 31 is sandwiched, the upper and lower two pieces of the tongue portion 31C are overlapped and sandwiched in the upper and lower two-sheet structure, and the elastic force is higher, and the seal pressure and the contact resistance are more sufficient. It will be pinched.
[0066]
As a result, the sealing performance and braking performance of the same part are improved.
[0067]
Further, if the second packing 22 for braking according to the first embodiment is changed to a braking packing 32 having a U-shaped cross section as shown in FIG. 15, for example, two tongue portions 32c and 32d parallel in the vertical direction are eventually obtained. By this, it will be press-contacted with the inner peripheral wall surface of the opening part 2c of the container main body 1A by a double structure, and the braking force and sealing performance will further improve.
[0068]
(Embodiment 4)
FIGS. 16-18 has shown the structure of the liquid thermal insulation container which concerns on Embodiment 4 of this invention which was again comprised as a direct drinking type stainless steel bottle.
[0069]
The liquid heat insulation container of this embodiment is a first packing 21 for sealing against the opening 2c of the container main body 1A through the opening cover 12a of the shoulder member 1B in the configuration of the liquid heat insulation container of the first embodiment. For example, as shown in FIG. 17, a thick tongue 41 extends in the horizontal direction from the outer periphery on the lower side of the ring-shaped main body 41a, and then has a crank structure 41 bent in the horizontal direction obliquely from above. Further, the second packing 22 for braking that presses against the inner peripheral wall surface of the opening 2c of the container main body 1A and applies a braking force at the time of rotation, for example, a tongue portion 42C having a T-shaped cross section shown in FIG. It is characterized in that it has been changed to the one 42 in the upper and lower structure.
[0070]
As described above, when the first packing 21 for sealing according to the first embodiment described above is changed to the sealing packing 41 having the shape shown in FIG. 17 and the thick tongue portion 41C, the drinking mouth forming member 1C is formed. When the seal packing 41 is sandwiched between the lower surface of the outer peripheral portion of the top plate portion 15b and the upper end of the shoulder member 1B side opening cover portion 12a, the rigidity and the elastic force are high. It will be clamped stably with sufficient sealing pressure and contact resistance.
[0071]
As a result, the sealing performance and braking performance of the same part are improved.
[0072]
Similarly, when the second packing 22 for braking is changed to the packing 42 for braking shown in FIG. 18, it is appropriately brought into pressure contact with the inner peripheral wall surface of the opening 2c of the container body 1A, and an appropriate braking force is obtained. can get.
[0073]
Furthermore, the shape is simple and the manufacture is easy.
[0074]
(Embodiment 5)
FIGS. 19 to 22 show the structure of a liquid heat insulating container according to Embodiment 5 of the present invention, which is also configured as a direct-drinking stainless steel bottle.
[0075]
The liquid heat insulation container of this embodiment is a first packing 21 for sealing against the opening 2c of the container main body 1A through the opening cover 12a of the shoulder member 1B in the configuration of the liquid heat insulation container of the first embodiment. Are the same, but on the other hand, they are pressed against the inner peripheral wall surface of the opening 2c of the container main body 1A to apply a braking force when rotating in the non-screwing rotation direction (return direction). The second packing 22 is changed to a radiating rib structure 52 shown in FIGS. 20 to 22, for example.
[0076]
In the case of this configuration, as shown in FIGS. 20 to 22, the second packing 52 for braking that applies a braking force to the turning force in the non-screwing rotation direction of the drinking mouth forming member 1 </ b> C is fitted. .. Are formed on the outer peripheral surface of the ring-shaped main body 52a having the portion 52b, and are provided with radial ribs 52c, 52c... Tangentially bent from the outer peripheral surface. That is, the braking force to be applied is small in the screwing rotation direction (A) of the drinking mouth forming member 1C, and the braking force to be applied is large in the non-screwing rotation direction (B).
[0077]
According to such a configuration, the drinking mouth forming member 1C is smoothly screwed with a small contact resistance when screwed to the shoulder member 1B, and on the contrary, when it is returned, it is returned with a large contact resistance. become.
[0078]
Therefore, the looseness at the time of opening the mouthpiece stopper 5 is less likely to occur, and the reliable sealing function of the mouthpiece forming member 1C screwing portion is maintained.
[0079]
(Embodiment 6)
FIG. 23 shows the structure of a liquid heat insulating container according to Embodiment 6 of the present invention configured as, for example, a server-type stainless steel pot.
[0080]
The liquid container 50 is configured as a server-type stainless steel pot that can store hot water after boiling, for example, in a restaurant or a hotel, and can store cold water by putting ice in the inner container. Thus, the liquid outlet port and the plug portion can be separated from the container body and washed.
[0081]
The liquid container 50 is roughly divided into a stainless steel container body (pot body) 50A having a heat insulation and heat retaining function, and an outer periphery of a cylindrical opening 62C on the upper end side of the container body (pot body) 50A. A cylindrical opening cover member (liquid pouring port forming member) 50B screwed and fixed via the first screwing portion 54, and a non-threaded turn inside the upper end portion of the cylindrical opening cover member 50B It is screwed and fixed detachably through a second threaded portion 55 having a screw groove structure that forms a liquid pouring path when it is loosened by turning in the moving direction, and the opening 62C of the container body (pot body) 50A is opened. A plug member 50C having a closed bottomed different diameter cylindrical structure and a plug cover member 50D integrally fitted and fixed to the upper end side opening of the upper-side large-diameter cylindrical portion (plug body portion) 57a of the plug member 50C. Has been.
[0082]
First, the container body (pot body) 50A is made of a metal material made of stainless steel, and an inner plate 51a as an inner container and an outer plate 51b as an exterior body are provided with a vacuum heat insulating space 51c therebetween. The upper edge portions are joined and integrated with each other, and the bottom side opening of the outer plate 51b is joined and closed via the bottom plate 51d made of the same stainless steel metal material provided with a sealing portion. As a result, a liquid container having a heat insulation structure with a wide bottomed cylindrical vacuum double wall as shown in the figure is formed.
[0083]
The container main body (pot main body) 50A includes a large-diameter cylindrical body portion 62a, a shoulder portion 62b that is located on the upper portion of the body portion 62a and rises while drawing a gently curved surface, and the shoulder portion 62b. And a cylindrical opening 62c provided in the center of the uppermost portion with a reduced diameter, and a bottom member 63 made of synthetic resin is fitted and fixed to the lower surface side of the bottom 62d from below, and the other upper portion As described above, the cylindrical opening cover member 50B made of synthetic resin is screwed and fixed to the outer periphery of the side opening 62c via the first screwing portion 54 as described above.
[0084]
The cylindrical opening cover member 50B is fitted to the upper edge of the opening 62c of the container main body (pot main body) 50A by a predetermined radius that is fitted from the upper outer peripheral side via the seal packing 61. An opening edge cover portion 62 having an inverted U-shaped cross section projecting to the bottom, and a lower portion screwed and fixed to the outer peripheral surface of the opening portion 62C of the container main body (pot main body) 50A via the first screwing portion 54. The upper side second screwing cylinder in which the side first screwing cylinder part 56a and the large diameter cylinder part (plug body part) 57a of the plug member 50C are screwed through the second screwing part 55. Part 56b, and a liquid outlet (liquid outlet pipe) 65 that extends from the second threaded cylinder part 56b, which is the side wall of the opening cover member 50B, perpendicularly to the horizontal direction. ing.
[0085]
On the other hand, the plug member 50C is screwed to the second screwed cylinder portion 56b on the upper side of the opening cover member 50B via a second screwed portion 55 made of a screw groove capable of liquid discharge. The plug body 57 is provided with a large-diameter threaded tube portion (plug body portion) 57a, and extends downward from the center of the bottom plate portion of the plug body 57 in a cylindrical shape. (Pot body) A bottomed cylindrical shape having a smaller diameter than the inner diameter of the opening 62C of the container body (pot body) 50A spaced from the inner peripheral wall surface of the opening 62C of the 50A in the radial inner peripheral side. The packing mounting cylinder 57b is integrally provided.
[0086]
On the other hand, a packing fitting groove is provided at the corner between the bottom surface of the bottom plate portion of the large-diameter cylindrical portion 57a of the plug main body 57 and the upper end outer peripheral surface of the packing mounting cylinder 57b, and the large-diameter cylindrical portion 57a A seal similar to that of the first embodiment that seals the space between the bottom plate and the packing mounting cylinder 57b and the opening 62c through the opening edge cover 62 of the container main body (pot main body) 50A. And a packing fitting groove is provided on the outer periphery of the lower end of the packing mounting cylinder 57b. The packing fitting cylinder 57b and the opening of the container main body (pot main body) 50A are provided in the packing fitting groove. 62c, radial braking ribs 52c, 52c,... Similar to those of the fifth embodiment, which are between the inner peripheral wall surface 62c and have a small contact rotation direction and a large contact resistance in the non-screw rotation direction.・Braking ribs 52 digits, are respectively fitted and fixed.
[0087]
Further, the cap portion 1D is formed of a semi-resting body projecting upward, and is integrally fitted and fixed to the opening wall at the top of the large-diameter cylindrical portion 57a of the plug member 50C.
[0088]
Therefore, in the case of this configuration, for example, when the cap member 50C is rotated to the right, for example, by turning the cap portion 50D with a finger, a second screw groove structure between the opening portion cover member 50B and the second portion. Then, the bottom plate portion of the large-diameter cylindrical portion (plug body portion) 57a of the plug member 50C passes through the seal packing 21 and the container main body (pot main body). The upper end of the opening cover portion 52 on the 50A side is pressed against and the opening 62C of the container body (pot body) 50A is maintained in a sealed state. In this case, the braking rib 52 of the plug member 50C acts as a braking force application member, but the braking rib pieces 52c, 52c... Are inclined in the tangential direction toward the non-screwing rotation direction. The braking force in the screwing rotation direction is small and smoothly rotated.
[0089]
As a result, for example, cold water in the inner container of the container main body (pot main body) 50 </ b> A is not supplied to the liquid pouring outlet 65, and water cannot be poured.
[0090]
In this state, the brake rib 52 at the lower end of the packing mounting cylinder 57b is further in pressure contact with the opening 62C of the container body (pot body) 50A with a predetermined elastic force. As described in the fifth embodiment, the plurality of radial braking ribs 52c, 52c,... Of the packing 52 are made of an elastic body such as rubber, and are gently deformed in the tightening direction. Although smooth rotation is allowed, a braking force is applied to prevent the rotation by applying a thrust force in the release direction opposite to that.
[0091]
Therefore, once screwing of the plug member 50C is completed, the plug member 50C is less likely to be released thereafter. Therefore, the closed state is stable, safe even if it falls, and a reliable sealing state is maintained.
[0092]
(Embodiment 7)
24 and 25 show the structure of a liquid heat insulating container according to Embodiment 7 of the present invention configured as a direct-drinking type stainless steel bottle.
[0093]
The liquid heat insulating container of this embodiment is basically the same as the liquid heat insulating container of the first to fifth embodiments, and the opening of the container main body 1A through the opening cover portion 12a of the shoulder member 1B. As the packing for sealing the portion 2c, the same one 31 as in the third embodiment is adopted, and the seal pressure and the contact resistance are sealed to seal between the drinking mouth portion 4 and the drinking mouth stopper 5 It is characterized in that it is formed larger than the sealing pressure and contact resistance of the packing 17 for use.
[0094]
In the case of such a configuration, the drinking mouth forming member 1C and the container main body side shoulder member 1B are in the non-screwing direction due to the difference in the sealing pressure and the contact resistance between the sealing packings 31 and 17 in the screwed and fixed state. A braking force with respect to the turning force is applied.
[0095]
Therefore, even if the drinking spout 5 is repeatedly rotated in the opening direction, a sufficient restraining force superior to the turning force is maintained on the drinking spout forming member 1C side, and the spout forming member is surely provided. The looseness with the shoulder member 1B of 1C is prevented, and a sealing function is also ensured.
[0096]
Further, in the same configuration, the cylindrical portion 15e to which the sealing packing 31 is fitted is formed short, and reinforcing ribs 15f, 15f, 15f are provided on the inner peripheral surface side, while the outer periphery is provided. A concave groove 15g for taking out the seal packing 31 is provided on the surface side, and the seal packing 31 itself can be removed and washed when each part is washed.
[0097]
Furthermore, in this case, the top plate portion 15b portion of the drinking mouth forming member 1C is a conical inclined surface that rises and slopes in the direction of the eccentric drinking mouth portion 4, so that the beverage can be smoothly taken when drinking directly. Guided by the portion 4 part.
[0098]
(Modification)
It should be noted that the position of the mouthpiece portion 4 in the configuration of the seventh embodiment does not necessarily have to be eccentric to one side as described above. For example, the center of the mouthpiece forming member 1C as shown in FIGS. Of course, it may be located on the shaft portion.
[Brief description of the drawings]
[0099]
FIG. 1 is a cross-sectional view showing the overall structure of a liquid heat insulating container according to Embodiment 1 of the present invention.
FIG. 2 is an enlarged sectional view showing a structure around a drinking mouth portion of the heat retaining container.
FIG. 3 is a top view of a seal packing that seals between an opening of a container body-side shoulder member and a drinking mouth forming member, which is one of the main parts of the heat retaining container.
4 is a cross-sectional view taken along line AA of FIG. 3 of the packing.
FIG. 5 is a bottom view of the packing.
FIG. 6 is a partially enlarged sectional view of the packing.
FIG. 7 is a brake for blocking the rotation of the drinking mouth forming member in the non-screwing rotation direction (return direction) by pressing against the inner peripheral wall surface of the opening of the container body which is one of the main parts of the heat retaining container. It is a top view of packing (braking force provision member).
8 is a cross-sectional view taken along the line BB in FIG. 7 of the brake packing. FIG.
FIG. 9 is a bottom view of the brake packing.
FIG. 10 is a partially enlarged sectional view of the braking packing.
FIG. 11 is an external perspective view of a main part (near the shoulder) of the heat retaining container.
FIG. 12 is an enlarged cross-sectional view showing a structure around a drinking mouth part of a liquid heat-retaining container according to Embodiment 2 of the present invention.
FIG. 13 is an enlarged cross-sectional view showing a structure around a drinking mouth part of a liquid heat retaining container according to Embodiment 3 of the present invention.
FIG. 14 is a cross-sectional view of a seal packing that seals between an opening of a container body-side shoulder member and a drinking mouth forming member, which is one of the main parts of the heat retaining container.
FIG. 15 is used for braking that presses against the inner peripheral wall surface of the opening of the container main body, which is one of the main parts of the heat retaining container, and prevents the spout forming member from rotating in the non-screwing rotation direction (return direction). It is sectional drawing of packing (braking force provision member).
FIG. 16 is an enlarged cross-sectional view on one side showing a structure around a drinking mouth part of a liquid heat-retaining container according to Embodiment 4 of the present invention.
FIG. 17 is a cross-sectional view of a seal packing that seals between an opening of a container body-side shoulder member and a drinking mouth forming member, which is one of the main parts of the heat retaining container.
FIG. 18 is used for braking to prevent the drinking mouth forming member from rotating in the non-screwing rotation direction (return direction) by being pressed against the inner peripheral wall surface of the opening of the container body which is one of the main parts of the heat retaining container It is a top view of packing (braking force provision member).
FIG. 19 is an enlarged cross-sectional view showing a structure around a drinking mouth part of a liquid thermal insulation container according to a fifth embodiment of the present invention.
FIG. 20 is used for braking to prevent the drinking mouth forming member from rotating in the non-screwing rotation direction (return direction) by being pressed against the inner peripheral wall surface of the opening of the container main body, which is one of the main parts of the heat retaining container. It is a top view of a rib (braking force provision member).
21 is a cross-sectional view taken along the line CC of FIG. 20 of the braking rib.
FIG. 22 is a partially enlarged top view showing the relationship between the braking rib and the inner peripheral wall surface of the opening of the container main body.
FIG. 23 is a cross-sectional view showing the overall structure of a liquid thermal insulation container according to Embodiment 6 of the present invention.
FIG. 24 is a longitudinal sectional view showing a structure around a drinking mouth part of a liquid heat retaining container according to a seventh embodiment of the present invention.
FIG. 25 is a horizontal sectional view showing a structure around a drinking mouth part of the liquid heat retaining container.
FIG. 26 is a longitudinal view showing a structure of a main part around a drinking mouth part of a liquid heat retaining container according to a modification of the seventh embodiment of the present invention.
FIG. 27 is a horizontal sectional view showing the structure of the main part around the drinking mouth of the liquid heat retaining container.
FIG. 28 is a cross-sectional view showing the overall structure of a conventional liquid heat insulation container.
[Explanation of symbols]
[0100]
1 is a bottle, 1A is a container body, 1B is a shoulder member, 1C is a drinking mouth forming member, 1D is a cap portion, 2a is a trunk portion, 2b is a shoulder portion, 2c is an opening portion, 3 is a bottom member, 4 is a drinking mouth Part, 4a is an opening, 4b is a screwing part, 5 is a spout stopper, 5a is a screwing part, 5b is a cylindrical part, 5c is a flange part, 6 is a string insertion ring, 6a is a string insertion hole part, 7 is An outer cover member, 11a is an inner plate, 11b is an outer plate, 15c is a cylindrical portion, 21, 31, 51 are sealing packings, 22, 32, 42 are braking packings, and 52 is a braking rib.

Claims

A container body having a heat insulating structure for storing a liquid to be kept warm, a shoulder member provided on the outer periphery of the opening of the container body via a seal packing, and a seal packing on the outer periphery of the opening of the shoulder member A drinking mouth forming member screwed and fixed, a drinking mouth portion extending above the drinking mouth forming member, and a drinking screw screwed and fixed to the outer periphery of the drinking mouth portion via a seal packing A liquid heat insulation container comprising a spout, wherein a part of the drinking mouth forming member is extended downward in the opening of the container main body, and the extension is provided with an opening of the container main body. A liquid heat insulation container provided with a braking force applying member that applies a braking force during relative rotation between the two.

The liquid thermal insulation container according to claim 1, wherein the braking force application member is a packing member.

The braking force applying member has a small braking force applied in the screwing rotation direction of the main body portion on which the braking force applying member is provided, and a tangential line in which the braking force applied in the non-screwing rotation direction opposite thereto is large. The liquid thermal insulation container according to claim 1 , wherein the liquid thermal insulation container is made of an elastic body having a radial rib structure inclined in a direction.

The relationship between the seal pressure of the packing that seals between the mouthpiece and the mouthpiece plug and the seal pressure of the seal that seals between the opening of the shoulder member and the mouthpiece forming member is greater than the former seal pressure. liquid insulated container according to claim 1 or 2 Symbol mounting, characterized in that towards the packing seal pressure is larger.

The extending portion of the drinking mouth forming member extending downward in the container main body extends from the top plate portion of the drinking mouth forming member downward in the opening of the container main body while maintaining a predetermined interval with respect to the inner peripheral surface of the opening of the container main body. The liquid thermal insulation container according to claim 1, 2, 3, or 4 , wherein the liquid thermal insulation container is a cylindrical body.