JP5970490B2

JP5970490B2 - Portable beverage container

Info

Publication number: JP5970490B2
Application number: JP2014016321A
Authority: JP
Inventors: 山中　茂弘; 茂弘山中
Original assignee: ピーコック魔法瓶工業株式会社
Priority date: 2014-01-31
Filing date: 2014-01-31
Publication date: 2016-08-17
Anticipated expiration: 2032-10-29
Also published as: JP2014114078A

Description

この発明は、容器本体から栓体を取り外すことなく注出操作が可能で、該栓体の開栓操作が手で楽に行える携帯飲料容器に関する。 The present invention relates to a portable beverage container that can be poured out without removing the stopper from the container body and can be easily opened by hand.

上述の液体を貯留する容器としては、特許文献１に開示の魔法瓶が既に提案されている（参照）。この魔法瓶は、容器本体を、上部に固定した下口部材と、下部に固定した外装ケースと、内部に配置した中容器とで構成している。下口部材の上部一側には、注液口となる嘴部を形成している。蓋体の下面中央に固着した栓体は、下口部材の内部に形成した栓差込み穴に螺合している。栓体の外周部に嵌着した弾性を有するパッキンは、栓差込み穴における中容器内部と連通する開口部の周縁部に押し付けられ、該開口部を閉塞している。 As a container for storing the liquid, a thermos bottle disclosed in Patent Document 1 has already been proposed (see). In this thermos bottle, a container body is composed of a lower mouth member fixed to the upper part, an outer case fixed to the lower part, and a middle container disposed inside. On the upper one side of the lower opening member, a collar portion serving as a liquid injection port is formed. The plug fixed to the center of the lower surface of the lid is screwed into a plug insertion hole formed in the lower opening member. The elastic packing fitted to the outer peripheral portion of the stopper is pressed against the peripheral edge of the opening communicating with the inside of the inner container in the plug insertion hole to close the opening.

しかし、上述の魔法瓶において、例えば、容器本体における中容器に貯留した液体の温度が低下する等して、中容器の内圧が常圧時よりも下降した場合、中容器内部の圧力が外部よりも低くなるため、栓体に嵌着したパッキンが、栓差込み穴の開口部の周縁部に対して強く押し付けられる。
つまり、栓体に嵌着したパッキンと、栓差込み穴における開口部の周縁部とが強く押し付けられるほど、その押し付け部分に生じる接触抵抗が大きくなる。このため、栓体を開栓方向へ回動操作する際の抵抗が大きく、栓体の開栓操作を手で行うことが困難となる問題があった。 However, in the above-described thermos, for example, when the internal pressure of the intermediate container is lower than that at normal pressure due to a decrease in the temperature of the liquid stored in the intermediate container in the container body, the pressure inside the intermediate container is higher than the outside. Since it becomes low, the packing fitted to the plug is strongly pressed against the peripheral edge of the opening of the plug insertion hole.
That is, the stronger the pressing of the packing fitted to the plug and the peripheral edge of the opening in the plug insertion hole, the greater the contact resistance generated at the pressed portion. For this reason, there is a problem that resistance when rotating the plug body in the opening direction is large, and it is difficult to open the plug body by hand.

実開昭５７−８７６２９号公報Japanese Utility Model Publication No. 57-87629

この発明は、液体の流出を防止するのに必要な止水性を確保しつつ、栓体の開栓操作が手で楽に行える携帯飲料容器を提供することを目的とする。 An object of the present invention is to provide a portable beverage container in which a stopper can be opened easily by hand while ensuring water-stopping necessary to prevent the outflow of liquid.

この発明は、内部に液体を貯留するための貯留空間を備えた容器本体と、前記容器本体の上端側内部に形成した前記貯留空間と連通する開口部を閉栓する栓体と、前記栓体の下端側外周部に取り付けた該栓体と前記開口部との隙間を止水する弾性部材製のパッキンと、を備え、前記栓体の下端側中央部に、該栓体内部の内部空間と連通する開口部を設け、前記パッキンを、前記栓体の開口部が閉塞される大きさ及び形状に形成し、前記パッキンにおける前記栓体の下端側周縁部に押し付けられる部分に、前記容器本体の貯留空間と前記栓体の内部空間との連通が許容される調圧孔を形成した携帯飲料容器であることを特徴とする。 The present invention provides a container body having a storage space for storing a liquid therein, a plug body for closing an opening communicating with the storage space formed inside the upper end side of the container body, A packing made of an elastic member that stops a gap between the plug body attached to the lower end side outer peripheral portion and the opening, and communicates with the internal space inside the plug body at the lower end side central portion of the plug body. And opening the opening of the plug body in a size and shape that closes the opening, and storing the container body in a portion of the packing that is pressed against a peripheral edge on the lower end side of the plug body. It is a portable beverage container having a pressure adjusting hole that allows communication between the space and the internal space of the stopper.

この発明によれば、液体の流出を防止するのに必要な止水性を確保しつつ、栓体の開栓操作が手で楽に行える。
詳しくは、例えば、容器本体における貯留空間に貯留した液体の温度が低下する等して、容器本体の内圧が常圧時よりも下降した場合、容器本体内部の圧力が外部よりも低くなるため、栓体に嵌着した弾性を有するパッキンが、容器本体における開口部の周縁部に対して強く押し付けられる。 According to this invention, the plug opening operation of the plug can be easily performed by hand while ensuring the water stop necessary for preventing the liquid from flowing out.
Specifically, for example, when the internal pressure of the container body is lower than the normal pressure when the temperature of the liquid stored in the storage space in the container body is reduced, the pressure inside the container body is lower than the outside, The elastic packing fitted to the stopper is pressed strongly against the peripheral edge of the opening in the container body.

つまり、栓体に嵌着したパッキンと、容器本体における開口部の周縁部とが強く押し付けられるほど、その押し付け部分に生じる接触抵抗が大きくなる。このため、栓体を開栓操作する際の抵抗が大きく、栓体の開栓操作を手で行うことが困難となる。 That is, as the packing fitted to the stopper and the peripheral edge of the opening in the container body are strongly pressed, the contact resistance generated at the pressed portion increases. For this reason, the resistance when opening the plug body is large, and it is difficult to manually open the plug body.

これに対し、本発明の携帯飲料容器は、容器本体における貯留空間の内圧が常圧時よりも下降した際、パッキンにおける栓体の開口部と対応する部分が、該パッキン自体の復元力に抗して貯留空間側に向けて弾性変形する。 In contrast, in the portable beverage container of the present invention, when the internal pressure of the storage space in the container body is lower than that at normal pressure, the portion of the packing corresponding to the opening of the plug body resists the restoring force of the packing itself. Then, it is elastically deformed toward the storage space side.

パッキンにおける栓体の下端側周縁部に押し付けられた部分が貯留空間側へ弾性変形するとともに、該パッキンにおける弾性変形する部分に形成した調圧孔が、栓体における開口部の周縁部から引き離されるので、調圧孔の周縁部と、栓体における開口部の周縁部との間に隙間が形成される。 A portion of the packing pressed against the lower end side peripheral portion of the plug is elastically deformed toward the storage space, and a pressure adjusting hole formed in the elastic deformation portion of the packing is separated from the peripheral portion of the opening of the plug. Therefore, a gap is formed between the peripheral edge of the pressure adjusting hole and the peripheral edge of the opening in the plug.

これにより、調圧孔を介して、容器本体の貯留空間と栓体の内部空間との連通が許容されるとともに、栓体の内部空間から容器本体の貯留空間に向けて吸気が許容されるため、容器本体における貯留空間の内圧が常圧時に復帰し、容器本体の貯留空間と栓体の内部空間との圧力差が小さくなる。 As a result, communication between the storage space of the container body and the internal space of the plug body is permitted via the pressure adjusting hole, and intake air is permitted from the internal space of the plug body toward the storage space of the container body. The internal pressure of the storage space in the container body returns to normal pressure, and the pressure difference between the storage space of the container body and the internal space of the plug body is reduced.

この結果、容器本体における開口部の周縁部に対するパッキンの押し付け力が常圧時の状態に復帰し、栓体を開栓操作する際に付与される接触抵抗が小さくなるため、栓体の開栓操作が手で楽に行える。 As a result, the pressing force of the packing against the peripheral edge of the opening in the container body returns to the normal pressure state, and the contact resistance given when the plug is opened is reduced. Easy to operate by hand.

また、この発明の態様として、前記パッキンにおける前記栓体の開口部と対応する中央部に、該栓体内部に向けて突出する断面弧状の反転部を形成し、前記反転部を、前記栓体内部に向けて突出する突出状態と、該突出状態と反対向きに突出する反転状態とに弾性変形可能に形成することができる。 Further, as an aspect of the present invention, a reversing portion having an arc-shaped cross section projecting toward the inside of the plug body is formed in a central portion corresponding to the opening portion of the plug body in the packing, and the reversing portion is connected to the plug body. It can be formed to be elastically deformable in a protruding state protruding toward the inside and an inverted state protruding in the opposite direction to the protruding state.

この発明によれば、栓体を開栓操作する際に付与される抵抗を確実に小さくすることができる。
詳しくは、容器本体における貯留空間の内圧が常圧時よりも下降した際、パッキンにおける反転部が、該パッキン自体の復元力に抗して突出状態と反対向きに突出する反転状態に反転する。 According to the present invention, it is possible to reliably reduce the resistance applied when the plug body is opened.
Specifically, when the internal pressure of the storage space in the container body is lower than that at normal pressure, the reversing portion of the packing is reversed to a reversed state that projects in the opposite direction to the protruding state against the restoring force of the packing itself.

パッキンにおける反転部の反転により、該パッキンにおける栓体の下端側周縁部に押し付けられた部分が貯留空間側へ弾性変形しやすく、該パッキンにおける調圧孔が、栓体における開口部の周縁部から積極的に引き離されるため、調圧孔の周縁部と、栓体における開口部の周縁部との間に隙間を確実に形成することができる。 Due to the reversal of the reversing part in the packing, the part pressed against the lower end side peripheral part of the plug body in the packing is easily elastically deformed toward the storage space side, and the pressure regulating hole in the packing is Since the separation is positively performed, a gap can be reliably formed between the peripheral edge of the pressure adjusting hole and the peripheral edge of the opening in the plug.

これにより、調圧孔を介して、栓体の内部空間から容器本体の貯留空間に向けて確実に吸気されるため、容器本体における貯留空間の内圧を常圧時に復帰させて、容器本体の貯留空間と栓体の内部空間との圧力差を確実に小さくすることができる。
この結果、栓体を開栓操作する際に付与される抵抗が小さくなり、栓体の開栓操作が手で確実に行える。 Thus, since the air is reliably sucked from the internal space of the plug body toward the storage space of the container main body through the pressure adjusting hole, the internal pressure of the storage space in the container main body is restored to the normal pressure to store the container main body. The pressure difference between the space and the internal space of the plug can be reliably reduced.
As a result, the resistance imparted when opening the plug body is reduced, and the plug opening operation can be reliably performed by hand.

また、この発明の態様として、前記調圧孔における周縁部の肉厚を、該調圧孔の周辺部分よりも厚肉に形成することができる。
この発明によれば、パッキンにおける調圧孔の周縁部に、例えば、割れや亀裂等が生じることを防止できる。 Moreover, as an aspect of this invention, the thickness of the peripheral part in the said pressure regulation hole can be formed thicker than the peripheral part of this pressure regulation hole.
According to this invention, it can prevent that a crack, a crack, etc. arise in the peripheral part of the pressure regulation hole in packing, for example.

詳しくは、容器本体における貯留空間の内圧が常圧時よりも下降した際、栓体に取り付けたパッキンの反転部が、該パッキン自体の復元力に抗して反転状態に反転する。また、貯留空間の内圧が常圧時に復帰した際、パッキンの反転部が、該パッキン自体の復元力によって突出状態に復帰する。 Specifically, when the internal pressure of the storage space in the container body is lower than that at normal pressure, the reversing part of the packing attached to the stopper is reversed to the reversed state against the restoring force of the packing itself. Further, when the internal pressure of the storage space returns to normal pressure, the reversal part of the packing returns to the protruding state by the restoring force of the packing itself.

ところが、パッキンにおける調圧孔の周縁部を厚肉に形成しているため、上述のような内圧変化により、パッキンにおける反転部の反転動作が何回も繰り返されても、調圧孔の周縁部に、例えば、割れや亀裂等が生じにくく、調圧孔による調圧作用が継続して得られるうえ、気密性及び止水性を保つために必要な強度を確保することができる。 However, since the peripheral portion of the pressure adjusting hole in the packing is formed thick, even if the reversing operation of the reversing portion in the packing is repeated many times due to the change in internal pressure as described above, the peripheral portion of the pressure adjusting hole In addition, for example, cracks and cracks are unlikely to occur, and the pressure adjusting action by the pressure adjusting holes can be continuously obtained, and the strength necessary for maintaining airtightness and waterstop can be ensured.

また、この発明の態様として、前記パッキンにおける調圧孔の周縁部と、該調圧孔が押し付けられる前記栓体における開口部の周縁部とを、互いに垂直に押し付けられる形状に形成することができる。 As an aspect of the present invention, the peripheral edge portion of the pressure adjusting hole in the packing and the peripheral edge portion of the opening in the plug body to which the pressure adjusting hole is pressed can be formed in a shape that is pressed perpendicularly to each other. .

この発明によれば、栓体による閉栓状態において、より高い気密性及び止水性を確保することができる。
詳しくは、容器本体における貯留空間と連通する開口部を、栓体に取り付けたパッキンにより閉栓した閉栓状態において、パッキンにおける調圧孔の周縁部が、栓体における開口部の周縁部に対して密着した状態に垂直に押し付けられる。
この結果、閉栓状態において、携帯飲料容器が転倒することがあっても、容器本体の貯留空間に貯留された液体が流出することを確実に防止できる。 According to this invention, it is possible to ensure higher airtightness and water stoppage in the closed state by the plug.
Specifically, in the closed state in which the opening communicating with the storage space in the container body is closed by the packing attached to the stopper, the peripheral edge of the pressure adjusting hole in the packing closely contacts the peripheral edge of the opening in the stopper. It is pushed vertically to the state.
As a result, even when the portable beverage container falls over in the closed state, it is possible to reliably prevent the liquid stored in the storage space of the container body from flowing out.

この発明によれば、液体の流出を防止するのに必要な止水性を確保しつつ、栓体の開栓操作が手で楽に行える携帯飲料容器を提供することができる。 According to the present invention, it is possible to provide a portable beverage container in which a stopper can be opened easily by hand while ensuring water-stopping necessary to prevent the outflow of liquid.

第１実施形態における閉栓状態の携帯飲料容器の正面図。The front view of the portable beverage container of the closure state in a 1st embodiment. 図１に示す閉栓状態の携帯飲料容器を後側斜め上方から見た斜視図。The perspective view which looked at the portable drink container of the closure state shown in FIG. 1 from back side diagonally upward. 図１に示す閉栓状態の携帯飲料容器のＡ−Ａ矢視断面図。AA arrow sectional drawing of the portable beverage container of the closure state shown in FIG. 図３に示す閉栓状態の携帯飲料容器のＢ−Ｂ矢視断面図。BB arrow sectional drawing of the portable beverage container of the closure state shown in FIG. 開栓状態の携帯飲料容器の正面図。The front view of the portable beverage container in the opened state. 図５に示す開栓状態の携帯飲料容器を前側斜め上方斜視図。Fig. 6 is a front oblique upper perspective view of the opened portable beverage container shown in Fig. 5. 図５に示す開栓状態の携帯飲料容器のＤ−Ｄ矢視断面図。DD arrow sectional drawing of the portable beverage container of the open state shown in FIG. 図６に示す開栓状態の携帯飲料容器のＥ−Ｅ矢視断面図。EE arrow sectional drawing of the portable beverage container of the open state shown in FIG. 飲み口を栓体により閉塞又は開放する回動操作の説明図。Explanatory drawing of rotation operation which obstructs or opens a drinking mouth with a stopper. 栓体を閉栓状態と開栓状態とに回動操作する際の説明図。Explanatory drawing at the time of carrying out rotation operation of the plug body to a closed state and an open state. 図１０に示す溝部と凸部とを係合する動作のａ部拡大説明図。FIG. 11 is an enlarged view of a portion of an operation for engaging the groove and the convex portion shown in FIG. 10. 栓体のパッキンによる止水状態の説明図。Explanatory drawing of the water stop state by packing of a stopper.

この発明の一実施形態を以下図面に基づいて詳述する。
図１は第１実施形態における閉栓状態の携帯飲料容器１０の正面図、図２は図１に示す閉栓状態の携帯飲料容器１０を後側斜め上方斜視図、図３は図１に示す閉栓状態の携帯飲料容器１０のＡ−Ａ矢視断面図、図４は図３に示す閉栓状態の携帯飲料容器１０のＢ−Ｂ矢視断面図である。 An embodiment of the present invention will be described in detail with reference to the drawings.
1 is a front view of a portable beverage container 10 in a closed state according to the first embodiment, FIG. 2 is a rear oblique upper perspective view of the portable beverage container 10 in a closed state shown in FIG. 1, and FIG. 3 is a closed state shown in FIG. 4 is a cross-sectional view of the portable beverage container 10 taken along the line A-A, and FIG. 4 is a cross-sectional view of the portable beverage container 10 in the closed state shown in FIG.

図５は開栓状態の携帯飲料容器１０の正面図、図６は図５に示す開栓状態の携帯飲料容器１０を前側斜め上方斜視図、図７は図５に示す開栓状態の携帯飲料容器１０のＤ−Ｄ矢視断面図、図８は図６に示す開栓状態の携帯飲料容器１０のＥ−Ｅ矢視断面図である。 5 is a front view of the opened portable beverage container 10, FIG. 6 is a front oblique oblique view of the opened portable beverage container 10 shown in FIG. 5, and FIG. 7 is the opened portable beverage shown in FIG. DD arrow sectional drawing of the container 10, FIG. 8 is EE arrow sectional drawing of the portable drink container 10 of the open state shown in FIG.

本実施形態の携帯飲料容器１０は、内部に液体（具体的には、飲料水）を貯留するための貯留空間Ｘが形成され、上部に筒状の口部１２が開口された有底筒状の容器本体１１と、該容器本体１１の上部に嵌着される筒状の下口部材１３と、容器本体１１の貯留空間Ｘと連通する飲み口部材１５の開口部１５ｍを閉栓する止水用のパッキン２１を備えた栓体１６とを有している。
また、下口部材１３は、容器本体１１の上部外周に対して嵌着される環状の肩部材１４と、容器本体１１の上部内周に対して着脱可能に螺合される筒状の飲み口部材１５とで構成している。 The portable beverage container 10 of the present embodiment has a bottomed cylindrical shape in which a storage space X for storing a liquid (specifically, drinking water) is formed inside, and a cylindrical mouth portion 12 is opened at the top. The container main body 11, the cylindrical lower mouth member 13 fitted to the upper portion of the container main body 11, and the water stop for closing the opening 15 m of the drinking mouth member 15 communicating with the storage space X of the container main body 11. The plug body 16 having the packing 21 is provided.
The lower mouth member 13 includes an annular shoulder member 14 fitted to the upper outer periphery of the container main body 11 and a cylindrical drinking mouth detachably screwed to the upper inner periphery of the container main body 11. It consists of the member 15.

容器本体１１は、外側に配置した外容器１１ａと、該外容器１１ａの内側に配置した内容器１１ｂとで真空二重構造に構成している。なお、外容器１１ａと内容器１１ｂとは、いずれも薄肉のステンレス鋼で構成している。
容器本体１１の胴部１１ｃは、上下方向の中途部から口部１２の手前部分に至るまで上部に進むに従って滑らかに半径方向へ膨出する形状に形成している。
なお、胴部１１ｃの外径は、下端側から上端側に向けて略同径となる形状に形成してもよい。 The container main body 11 is configured in a vacuum double structure with an outer container 11a arranged outside and an inner container 11b arranged inside the outer container 11a. The outer container 11a and the inner container 11b are both made of thin stainless steel.
The body portion 11c of the container body 11 is formed in a shape that smoothly bulges in the radial direction as it progresses from the midway portion in the vertical direction to the front portion of the mouth portion 12.
In addition, you may form the outer diameter of the trunk | drum 11c in the shape which becomes substantially the same diameter toward the upper end side from a lower end side.

容器本体１１における口部１２の口縁部１２ａは、上方に向けて筒状に突出する形状に形成している。さらに、口部１２の口縁部１２ａよりも下側の上部外周は、口部１２の手前部分から上方に向けて段階的に小径となる段付き形状に形成している。 The mouth edge portion 12a of the mouth portion 12 in the container body 11 is formed in a shape projecting upward in a cylindrical shape. Further, the upper outer periphery of the mouth portion 12 below the mouth edge portion 12a is formed in a stepped shape that gradually decreases in diameter from the front portion of the mouth portion 12 toward the upper side.

口縁部１２ａの内周には、飲み口部材１５を容器本体１１の口部１２に対して着脱可能に螺合するため、一対の螺着ねじ部１８ａ，１８ｂにおける一方の螺着ねじ部１８ａを螺刻している。 In order to removably screw the drinking mouth member 15 to the mouth portion 12 of the container main body 11 on the inner periphery of the mouth edge portion 12a, one screwed screw portion 18a of the pair of screwed screw portions 18a and 18b. Is screwed.

口縁部１２ａにおける螺着ねじ部１８ａよりも下側内周には、内周全体が径内方向に向けて突出する凸状の環状突部１９を、該螺着ねじ部１８ａの下側周面に沿って周方向に連続して形成している。 A convex annular protrusion 19 whose entire inner periphery protrudes in the radially inward direction is provided on the inner periphery below the screw thread portion 18a in the mouth edge portion 12a, and the lower periphery of the screw thread portion 18a. It forms continuously in the circumferential direction along the surface.

肩部材１４は、上方に向けて筒状に突出する上側筒部１４ａと、下方に向けて筒状に突出する下側筒部１４ｂとを、一体的に連設して略環状に構成している。上側筒部１４ａの外周面は、下端側から上端側に向けて徐々に小径となるテーパー面に傾斜している。 The shoulder member 14 is formed in a substantially annular shape by integrally connecting an upper cylindrical portion 14a protruding upward in a cylindrical shape and a lower cylindrical portion 14b protruding downward in a cylindrical shape. Yes. The outer peripheral surface of the upper cylindrical portion 14a is inclined to a tapered surface that gradually decreases in diameter from the lower end side toward the upper end side.

下側筒部１４ｂは、容器本体１１における口部１２の口縁部１２ａと対応して、下端側から上端側に向けて段階的に小径となる段付き形状に形成している。下側筒部１４ｂの内周面は、口縁部１２ａの外周面に対して面接触される内径及び形状に形成している。 The lower cylindrical portion 14b is formed in a stepped shape that gradually decreases in diameter from the lower end side toward the upper end side, corresponding to the mouth edge portion 12a of the mouth portion 12 in the container main body 11. The inner peripheral surface of the lower side cylinder part 14b is formed in the internal diameter and shape which are surface-contacted with the outer peripheral surface of the edge part 12a.

上述した肩部材１４と飲み口部材１５との嵌着部分の構造を、図９、図１０、図１１を用いて説明する。
図９は飲み口１５ｃを栓体１６により閉塞又は開放する回動操作の説明図、詳しくは、図９（ａ）は飲み口１５ｃを閉塞した状態の平面図、図９（ｂ）は飲み口１５ｃを開放した状態の平面図である。 The structure of the fitting part of the shoulder member 14 and the drinking mouth member 15 described above will be described with reference to FIGS. 9, 10, and 11.
FIG. 9 is an explanatory view of a turning operation for closing or opening the drinking mouth 15c with the plug body 16. Specifically, FIG. 9A is a plan view of the drinking mouth 15c closed, and FIG. 9B is a drinking mouth. It is a top view in the state where 15c was opened.

図１０は栓体１６を閉栓状態と開栓状態とに回動操作する際の説明図、詳しくは、図１０（ａ）は図３に示す閉栓状態のＣ−Ｃ矢視断面図、図１０（ｂ）は図７に示す開栓状態のＦ−Ｆ矢視断面図である。 FIG. 10 is an explanatory view when the plug body 16 is rotated between a closed state and an opened state. Specifically, FIG. 10 (a) is a cross-sectional view taken along the line CC in the closed state shown in FIG. (B) is FF arrow sectional drawing of the open state shown in FIG.

図１１は図１０に示す溝部２０ａと凸部２３ｂとを係合する動作のａ部拡大説明図、詳しくは、図１１（ａ）は凸部２３ｂを溝部２０ａに係合した状態の拡大断面図、図１１（ｂ）は凸部２３ｂが壁部２０ｂを乗り越える状態の拡大断面図である。 FIG. 11 is an enlarged explanatory view of a portion of the operation of engaging the groove portion 20a and the convex portion 23b shown in FIG. 10, and specifically, FIG. 11A is an enlarged cross-sectional view of the state in which the convex portion 23b is engaged with the groove portion 20a. FIG. 11B is an enlarged cross-sectional view showing a state in which the convex portion 23b gets over the wall portion 20b.

上側筒部１４ａの対向する上端側内周には、径内方向に向けて突出する凸部１４ｃをそれぞれ形成している。その対向する一対の凸部１４ｃは、大小の異なる大きさに形成している（図４、図８、図１０参照）。 Convex portions 14c projecting in the radially inward direction are formed on the inner periphery of the upper end side facing the upper cylindrical portion 14a. The opposing pair of convex portions 14c are formed in different sizes (see FIGS. 4, 8, and 10).

上側筒部１４ａの凸部１４ｃが形成された部分を除く上端側内周には、径内方向に向けて突出する爪部１４ｄを、該上側筒部１４ａの上端側内周面に沿って周方向に対して所定間隔を隔てて複数形成している（図３、図７参照）。
なお、実施形態では、凸部１４ｃを、上側筒部１４ａの対向する内周面に２箇所配置しているが、例えば、１箇所、あるいは、３箇所以上を配置してもよい。 A claw portion 14d protruding in the radially inward direction is provided along the upper end side inner peripheral surface of the upper tube portion 14a on the upper end side inner periphery excluding the portion where the convex portion 14c of the upper tube portion 14a is formed. A plurality are formed at predetermined intervals with respect to the direction (see FIGS. 3 and 7).
In the embodiment, the convex portions 14c are arranged at two locations on the inner peripheral surface facing the upper cylindrical portion 14a. However, for example, one location or three or more locations may be arranged.

上側筒部１４ａの外周面には、径外方向に向けて凹状に窪んだ凹状係合部２０を、凸部１４ｃに対して略９０度偏心した位置の外周面に形成している（図１０、図１１参照）。
凹状係合部２０は、外周側の幅方向中央部が径内方向に向けて断面凹状に窪んだ溝部２０ａと、溝部２０ａの幅方向両側部が径外方向に向けて突出する壁部２０ｂとで構成している。 On the outer peripheral surface of the upper cylindrical portion 14a, a concave engagement portion 20 that is recessed in a radially outward direction is formed on the outer peripheral surface at a position that is eccentric by approximately 90 degrees with respect to the convex portion 14c (FIG. 10). FIG. 11).
The concave engaging portion 20 includes a groove portion 20a having a central portion in the width direction on the outer peripheral side that is recessed in a concave shape in the radial direction, and a wall portion 20b in which both side portions in the width direction of the groove portion 20a protrude in the radial direction. It consists of.

壁部２０ｂは、溝部２０ａから周方向に向けて離れるのに伴って徐々に小径となるテーパー面に傾斜している。また、壁部２０ｂの径外方向に突出する面は、下端側から上端側に向けて徐々に小径となるテーパー面に傾斜している（図１１（ａ）（ｂ）参照）。 Wall part 20b inclines to the taper surface which becomes a small diameter gradually as it leaves | separates toward the circumferential direction from the groove part 20a. Further, the surface of the wall portion 20b that protrudes in the radially outward direction is inclined to a tapered surface that gradually decreases in diameter from the lower end side toward the upper end side (see FIGS. 11A and 11B).

上側筒部１４ａの下端側外周には、栓体１６の外周部が嵌着される環状の段部１４ｅを筒部１４ａ，１４ｂと同心円に形成している。段部１４ｅは、下側筒部１４ｂの外径よりも小径で、壁部２０ｂの下端側外面と略同径に形成している。 On the outer periphery on the lower end side of the upper cylindrical portion 14a, an annular step portion 14e to which the outer peripheral portion of the plug 16 is fitted is formed concentrically with the cylindrical portions 14a and 14b. The step portion 14e has a smaller diameter than the outer diameter of the lower cylindrical portion 14b and is formed to have substantially the same diameter as the lower end side outer surface of the wall portion 20b.

飲み口部材１５は、容器本体１１の口縁部１２ａより上方に向けて突出される筒状の上側筒部１５ａと、口縁部１２ａの内周に対して螺合される下側筒部１５ｂとを、一体的に連結して略筒状に構成している。 The drinking mouth member 15 includes a cylindrical upper tube portion 15a that protrudes upward from the rim portion 12a of the container body 11, and a lower tube portion 15b that is screwed into the inner periphery of the lip portion 12a. Are integrally connected to form a substantially cylindrical shape.

上側筒部１５ａの上部内周（一側内周）には、容器本体１１の貯留空間Ｘに貯留された液体の注出が許容される弧状の飲み口１５ｃを形成している。その飲み口１５ｃと反対側の上部内周には、容器本体１１の貯留空間Ｘに向けて外気の流入が許容される通気路１５ｄを形成している。 On the upper inner periphery (one side inner periphery) of the upper cylindrical portion 15a, an arc-shaped drinking mouth 15c that allows the liquid stored in the storage space X of the container body 11 to be poured is formed. An air passage 15d that allows inflow of outside air toward the storage space X of the container body 11 is formed in the upper inner periphery on the side opposite to the drinking mouth 15c.

上側筒部１５ａの飲み口１５ｃと反対側の上部には、蓋体２３の飲み口突出孔２３ａと略一致する大きさ及び形状を有するとともに、上側筒部１５ａの中央部から飲み口１５ｃと反対側の外周部に向けて徐々に低くなる角度に傾斜する飲み口閉塞部１５Ｔを形成している。 The upper portion of the upper cylindrical portion 15a opposite to the drinking mouth 15c has a size and a shape substantially coincident with the drinking mouth protruding hole 23a of the lid 23, and is opposite to the drinking mouth 15c from the center of the upper cylindrical portion 15a. A drinking mouth closing portion 15T that is inclined at a gradually decreasing angle toward the outer peripheral portion on the side is formed.

また、飲み口閉塞部１５Ｔは、該飲み口閉塞部１５Ｔの中央部から両端部に向けて徐々に高くなる滑らかな曲面に形成している。
なお、上側筒部１５ａの飲み口閉塞部１５Ｔを除く上端部は、径内方向に向けて徐々に低くなるテーパー面に傾斜している。 Further, the drinking mouth closing portion 15T is formed in a smooth curved surface that gradually increases from the central portion of the drinking mouth closing portion 15T toward both ends.
The upper end portion of the upper cylindrical portion 15a excluding the drinking mouth closing portion 15T is inclined to a tapered surface that gradually decreases in the radial direction.

飲み口１５ｃと対応する上側筒部１５ａの上部外面には、径外方向に向けて凹状に窪んだ滑らかな曲面の窪み部１５ｅを形成している。
これにより、飲み口１５ｃの上端側縁部が前方に向けて突出した形状となるので、容器本体１１を、飲み口１５ｃが上向きとなる姿勢に起立した際、液体の切れがよく、上側筒部１５ａの上部外面に沿って液体が滴り落ちることを防止できる（図３、図７参照）。 On the upper outer surface of the upper cylindrical portion 15a corresponding to the drinking mouth 15c, a smoothly curved hollow portion 15e that is recessed in a radially outward direction is formed.
Thereby, since the upper end side edge part of the drinking mouth 15c becomes the shape which protruded toward the front, when the container main body 11 stands in the attitude | position which the drinking mouth 15c faces upwards, the cut | disconnection of a liquid is good and an upper cylinder part The liquid can be prevented from dripping along the upper outer surface of 15a (see FIGS. 3 and 7).

飲み口部材１５の飲み口１５ｃよりも下側の中央部外周には、上側筒部１４ａの上端が当接される鍔部１５ｆを周方向に連続して形成している。その鍔部１５ｆの下側外周には、上側筒部１４ａの爪部１４ｄが係止される溝部１５ｇを、該鍔部１５ｆの下側外周面に沿って周方向に連続して形成している。 On the outer periphery of the central portion below the drinking mouth 15c of the drinking mouth member 15, a flange portion 15f that is in contact with the upper end of the upper cylindrical portion 14a is continuously formed in the circumferential direction. On the lower outer periphery of the flange portion 15f, a groove portion 15g for engaging the claw portion 14d of the upper cylindrical portion 14a is formed continuously in the circumferential direction along the lower outer peripheral surface of the flange portion 15f. .

溝部１５ｇの下側外周には、上側筒部１４ａの上端側内周が当接される凸状の環状突起１５ｈを、該溝部１５ｇの下側外周に沿って周方向に連続して形成している（図３、図７参照）。 On the lower outer periphery of the groove portion 15g, a convex annular protrusion 15h is formed continuously in the circumferential direction along the lower outer periphery of the upper groove portion 14g. (See FIGS. 3 and 7).

環状突起１５ｈの対向する周縁部には、上側筒部１４ａの凸部１４ｃと対応して、該凸部１４ｃの係合が許容される凹部１５ｉをそれぞれ形成している。その対向する一対の凹部１５ｉは、凸部１４ｃと対応して大小の異なる大きさに形成している（図４、図８、図１０参照）。 Concave portions 15i that are allowed to engage with the convex portions 14c are formed on the opposing peripheral portions of the annular protrusions 15h, corresponding to the convex portions 14c of the upper cylindrical portion 14a. The pair of opposing concave portions 15i are formed in different sizes corresponding to the convex portion 14c (see FIGS. 4, 8, and 10).

さらに、飲み口部材１５の環状突起１５ｈよりも下側の下部外周には、口縁部１２ａの螺着ねじ部１８ａと対応して、他方の螺着ねじ部１８ｂを螺刻している。
なお、実施例では、一対の凸部１４と一対の凹部１５ｉとを大小の異なる大きさに形成した例を説明したが、同一の大きさに形成してもよい。 Further, on the lower outer periphery below the annular protrusion 15h of the drinking mouth member 15, the other screwing screw part 18b is screwed in correspondence with the screwing screw part 18a of the mouth edge part 12a.
In the embodiment, the example in which the pair of convex portions 14 and the pair of concave portions 15i are formed in different sizes, but may be formed in the same size.

下側筒部１５ｂの下端部は、口縁部１２ａにおける螺着ねじ部１８ａよりも下方に延長され、螺着ねじ部１８ａよりも下側内周に形成した環状突起１９の径内方向に突出する突出側内周と対向する位置に至る垂下長さに形成している。 The lower end portion of the lower cylindrical portion 15b extends downward from the screw thread portion 18a in the mouth edge portion 12a, and projects inward in the radial direction of the annular protrusion 19 formed on the lower inner periphery from the screw screw portion 18a. It is formed in a drooping length that reaches a position facing the inner periphery of the protruding side.

下側筒部１５ｂの下端側外周には、径外方向に向けて突出する環状の突出部１５ｊを、該下側筒部１５ｂの下端部外周に沿って周方向に連続して形成している。その突出部１５ｊには、柔軟性を有する弾性部材（具体的には、シリコーンゴム）にて形成した環状の止水用パッキン２１を嵌着している。 On the lower end side outer periphery of the lower cylindrical portion 15b, an annular projecting portion 15j protruding outward in the radial direction is formed continuously along the outer periphery of the lower end portion of the lower cylindrical portion 15b. . An annular water-stopping packing 21 formed of a flexible elastic member (specifically, silicone rubber) is fitted to the protruding portion 15j.

下側筒部１５ｂの下端側中央部には、平面視円形の開口部１５ｍを、容器本体１１の貯留空間Ｘと連通して開口している。その下側筒部１５ｂの下端側内周には、径内方向に向けて突出する突出部１５ｋを、開口部１５ｍよりも上側内周に沿って周方向に連続して形成している。 An opening 15m having a circular shape in plan view is opened in communication with the storage space X of the container main body 11 at the lower end side central portion of the lower cylindrical portion 15b. On the lower end side inner periphery of the lower cylindrical portion 15b, a protruding portion 15k that protrudes in the radially inward direction is formed continuously in the circumferential direction along the upper inner periphery from the opening 15m.

さらに、飲み口部材１５の飲み口１５ｃよりも下側の中央部内周には、栓体１６の栓本体２４を容器本体１１の口部１２に対して着脱可能に螺合するため、一対の螺着ねじ部２２ａ，２２ｂにおける一方の螺着ねじ部２２ａを螺刻している。
なお、螺着ねじ部２２ａは、飲み口１５ｃ及び通気路１５ｄを形成した部分を除く飲み口部材１５の両側内周に配置している。 Furthermore, a plug body 24 of the plug body 16 is detachably screwed to the mouth section 12 of the container body 11 on the inner periphery of the center portion below the drinking mouth 15c of the drinking mouth member 15, so One screwing screw portion 22a in the screwing screw portions 22a and 22b is screwed.
In addition, the screwing screw part 22a is arrange | positioned at the both-sides inner periphery of the drinking mouth member 15 except the part which formed the drinking mouth 15c and the ventilation path 15d.

上述した肩部材１４と飲み口部材１５は、肩部材１４における上側筒部１４ａの凸部１４ｃと、飲み口部材１５における環状突起１５ｈの凹部１５ｉとの大きさを一致させて、肩部材１４を飲み口部材１５の下部外周に対して下方から挿嵌する。 The shoulder member 14 and the mouthpiece member 15 described above are configured such that the size of the convex portion 14c of the upper cylindrical portion 14a of the shoulder member 14 and the size of the concave portion 15i of the annular protrusion 15h of the mouthpiece member 15 match each other. It is inserted from below into the lower outer periphery of the drinking mouth member 15.

続いて、上側筒部１４ａの爪部１４ｄを飲み口部材１５の溝部１５ｇに係止し、上側筒部１４ａの凸部１４ｃを環状突起１５ｈの凹部１５ｉに係合して、肩部材１４と飲み口部材１５とを一体的に嵌着固定している（図４、図１０（ａ）参照）。 Subsequently, the claw portion 14d of the upper cylindrical portion 14a is engaged with the groove portion 15g of the drinking mouth member 15, and the convex portion 14c of the upper cylindrical portion 14a is engaged with the concave portion 15i of the annular protrusion 15h, thereby The mouth member 15 is integrally fitted and fixed (see FIGS. 4 and 10A).

つまり、凸部１４ｃと凹部１５ｉとの大きさを一致させて、肩部材１４と飲み口部材１５とを嵌着するので、肩部材１４の凹状係合部２０を、飲み口部材１５の飲み口１５ｃと反対側に向けたまま嵌着することができる。
これにより、肩部材１４と飲み口部材１５との向きを間違えることなく一体的に組み付けることができる。 That is, since the size of the convex portion 14c and the concave portion 15i are matched and the shoulder member 14 and the drinking mouth member 15 are fitted, the concave engaging portion 20 of the shoulder member 14 is connected to the drinking mouth of the drinking mouth member 15. It can be fitted while facing away from 15c.
Thereby, it can assemble | attach integrally, without mistaking the direction of the shoulder member 14 and the drinking mouth member 15.

上述の肩部材１４と飲み口部材１５とで構成される下口部材１３を、容器本体１１の口部１２に固定する場合、肩部材１４が一体的に嵌着された飲み口部材１５の下側筒部１５ｂを、容器本体１１の口部１２に挿入するとともに、一対の螺着ねじ部１８ａ，１８ｂが互いに螺合するよう閉栓方向ＣＬ（時計回り）に回動操作して、下側筒部１５ｂの下端部を、環状突起１９の突出側周面と対向する位置に至るまで深く押し込む。 When the lower mouth member 13 composed of the shoulder member 14 and the mouthpiece member 15 described above is fixed to the mouth portion 12 of the container body 11, the lower portion of the mouthpiece member 15 to which the shoulder member 14 is integrally fitted. The side tube portion 15b is inserted into the mouth portion 12 of the container body 11, and the bottom tube is rotated in the closing direction CL (clockwise) so that the pair of screwing screw portions 18a and 18b are screwed together. The lower end portion of the portion 15b is pushed deeply until reaching the position facing the protruding side peripheral surface of the annular protrusion 19.

同時に、飲み口部材１５の外周に嵌着した肩部材１４を、容器本体１１における段付き形状を有する口縁部１２ａの外周面に嵌着して、口部１２の口縁部１２ａを、肩部材１４と飲み口部材１５とで厚み方向に挟持する。 At the same time, the shoulder member 14 fitted to the outer periphery of the drinking mouth member 15 is fitted to the outer peripheral surface of the mouth edge portion 12a having a stepped shape in the container body 11, and the mouth edge portion 12a of the mouth portion 12 is attached to the shoulder portion. The member 14 and the drinking mouth member 15 are sandwiched in the thickness direction.

飲み口部材１５の下側筒部１５ｂを容器本体１１の口部１２に挿入する際、下側筒部１５ｂのパッキン２１を、口縁部１２ａにおける環状突起１９の突出側周面と対向する位置まで押し込み、パッキン２１を、環状突部１９の上側突出周面から径内側突出周面に亘る周面に対して密着した状態に押し付ける（図１２参照）。 When inserting the lower cylinder part 15b of the drinking mouth member 15 into the mouth part 12 of the container body 11, the packing 21 of the lower cylinder part 15b is opposed to the protruding peripheral surface of the annular protrusion 19 in the mouth edge part 12a. Until the packing 21 is in close contact with the circumferential surface extending from the upper projecting circumferential surface of the annular projection 19 to the radially inner projecting circumferential surface (see FIG. 12).

この結果、パッキン２１を環状突部１９の上側突出周面のみに押し付けるよりも、環状突部１９とパッキン２１との接触面積が大きく、より高い止水性を確保することができる。 As a result, the contact area between the annular protrusion 19 and the packing 21 is larger than when the packing 21 is pressed only against the upper protruding peripheral surface of the annular protrusion 19, and higher water-stopping performance can be ensured.

さらに、パッキン２１を環状突部１９の上側突出周面のみに押し付けるよりも、より大きな接触抵抗が得られるので、栓体１６を開栓方向ＯＰ（反時計回り）へ回動操作する際、環状突部１９とパッキン２１との接触抵抗により、飲み口部材１５が供回りすることを防止する効果も得られる。 Furthermore, since a larger contact resistance can be obtained than when the packing 21 is pressed only on the upper projecting peripheral surface of the annular protrusion 19, when the plug body 16 is turned in the opening direction OP (counterclockwise), the annular shape is increased. Due to the contact resistance between the protrusion 19 and the packing 21, an effect of preventing the drinking mouth member 15 from rotating is also obtained.

さらにまた、肩部材１４と飲み口部材１５とを、容器本体１１における口部１２の口縁部１２ａに対して厚み方向に押し付け、口部１２の口縁部１２ａを、肩部材１４と飲み口部材１５とで厚み方向に挟持するため、栓体１６を開栓方向ＯＰへ回動操作する際、飲み口部材１５が供回りすることを防止する効果が得られる（図３、図４参照）。 Furthermore, the shoulder member 14 and the drinking mouth member 15 are pressed in the thickness direction against the mouth edge portion 12a of the mouth portion 12 in the container body 11, and the mouth edge portion 12a of the mouth portion 12 is pressed against the shoulder member 14 and the mouth opening. Since it is clamped with the member 15 in the thickness direction, when the plug body 16 is rotated in the opening direction OP, an effect of preventing the drinking mouth member 15 from being provided is obtained (see FIGS. 3 and 4). .

上述のパッキン２１と環状突部１９との接触抵抗による供回り防止効果に加えて、口部１２の口縁部１２ａを肩部材１４と飲み口部材１５とで挟持することによる供回り防止効果が相乗して得られるため、より高い供回り防止効果が得られる。 In addition to the effect of preventing rotation due to the contact resistance between the packing 21 and the annular protrusion 19 described above, the effect of preventing rotation by sandwiching the lip 12a of the mouth 12 between the shoulder member 14 and the drinking mouth member 15 is provided. Since it is obtained synergistically, a higher anti-rotation effect can be obtained.

栓体１６は、容器本体１１の口部１２より上方に突出する飲み口部材１５の上側筒部１５ａの外周が覆われる大きさ及び形状に形成した蓋体２３と、蓋体２３の内側中央部から下方に向けて突出した筒状の栓本体２４とを、一体的に嵌着して構成している（図３、図４参照）。
なお、蓋体２３と栓本体２４とは、いずれもポリプロピレンなどの合成樹脂で構成している。 The stopper 16 includes a lid 23 formed in a size and shape that covers the outer periphery of the upper cylindrical portion 15 a of the drinking mouth member 15 that protrudes upward from the mouth 12 of the container body 11, and an inner central portion of the lid 23. A cylindrical plug main body 24 projecting downward from the pipe is integrally fitted (see FIGS. 3 and 4).
The lid body 23 and the plug body 24 are both made of a synthetic resin such as polypropylene.

蓋体２３は、その上面を、平面視円形に形成するとともに、該蓋体２３の外周部を、上端側から下端側に向けて徐々に大径となる末広がり形状に形成している。
その蓋体２３の上面部には、下口部材１３における飲み口部材１５の飲み口１５ｃが形成された上端部と同一円周上に、該飲み口１５ｃが上方に向けて突出が許容される弧状の飲み口突出孔２３ａを形成している。 The lid body 23 has an upper surface formed in a circular shape in plan view, and an outer peripheral portion of the lid body 23 formed in a divergent shape gradually increasing in diameter from the upper end side toward the lower end side.
On the upper surface of the lid 23, the drinking mouth 15 c is allowed to protrude upward on the same circumference as the upper end of the lower mouth member 13 where the drinking mouth 15 c of the drinking mouth member 15 is formed. An arc-shaped drinking hole projection hole 23a is formed.

飲み口突出孔２３ａは、栓体１６の回動方向（開栓方向ＯＰ及び閉栓方向ＣＬ）に沿って周方向に形成するとともに、飲み口部材１５の飲み口１５ｃが形成された上端部と同一の曲率半径に形成している。 The drinking hole projection hole 23a is formed in the circumferential direction along the rotation direction of the plug body 16 (opening direction OP and closing direction CL), and is the same as the upper end portion where the drinking hole 15c of the drinking hole member 15 is formed. The radius of curvature is formed.

蓋体２３の飲み口突出孔２３ａが形成された上部には、該蓋体２３の中央部から飲み口突出孔２３ａと対応する外周部に向けて徐々に低くなる角度に傾斜する飲み口露出部２３Ｔを形成している。また、蓋体２３の飲み口露出部２３Ｔは、飲み口部材１５の飲み口閉塞部１５Ｔと略同一の角度に傾斜するとともに、略同一の曲面に形成している。 In the upper part of the lid 23 where the drinking hole projecting hole 23a is formed, the drinking mouth exposing part that inclines at an angle gradually decreasing from the central part of the lid body 23 toward the outer peripheral part corresponding to the drinking hole projecting hole 23a. 23T is formed. Further, the drinking mouth exposed portion 23T of the lid body 23 is inclined at substantially the same angle as the drinking mouth closing portion 15T of the drinking mouth member 15, and is formed to have substantially the same curved surface.

蓋体２３の下端側外周部は、肩部材１４の段部１４ｅの外周面に対して嵌着が許容される大きさ及び形状に形成している。その蓋体２３の下端側内周には、径内方向に向けて突出する凸部２３ｂを、該蓋体２３の飲み口突出孔２３ａと反対側の一部内周面に形成している。 The outer peripheral portion on the lower end side of the lid body 23 is formed in a size and a shape that allow fitting to the outer peripheral surface of the stepped portion 14e of the shoulder member 14. On the inner periphery on the lower end side of the lid body 23, a convex portion 23b that projects in the radially inward direction is formed on a part of the inner circumferential surface of the lid body 23 opposite to the drinking hole projection hole 23a.

凸部２３ｂは、凹状係合部２０の溝部２０ａに対して係合が許容される大きさ及び形状に形成され、肩部材１４の上側筒部１４ａに形成した凹状係合部２０と対応する高さ位置の内周面に形成している。 The convex portion 23 b is formed in a size and shape that allows engagement with the groove portion 20 a of the concave engaging portion 20, and has a height corresponding to the concave engaging portion 20 formed on the upper cylindrical portion 14 a of the shoulder member 14. It is formed on the inner peripheral surface at the position.

蓋体２３の内側中央面には、下方に向けて突出する筒状の受け部２３ｃを形成している。受け部２３ｃの下端側内周には、径内方向に向けて突出する係止爪２３ｄを周方向に所定間隔を隔てて複数形成している。 A cylindrical receiving portion 23 c that protrudes downward is formed on the inner central surface of the lid body 23. A plurality of locking claws 23d projecting in the radially inward direction are formed at a predetermined interval in the circumferential direction on the inner periphery on the lower end side of the receiving portion 23c.

栓本体２４は、該栓本体２４の内部を、下端側から上端側に向けて貫通する中空筒状に形成している。その栓本体２４の上端部開口部に嵌着した蓋体２３と、下端部開口部に嵌着したパッキン２５とで囲繞した内部空間Ｙは、図示しない通気路を介して栓体１６の外部と連通するように構成している。 The plug body 24 is formed in a hollow cylindrical shape that penetrates the inside of the plug body 24 from the lower end side toward the upper end side. The internal space Y surrounded by the lid 23 fitted to the upper end opening of the plug body 24 and the packing 25 fitted to the lower end opening is connected to the outside of the plug 16 via a ventilation path (not shown). It is configured to communicate.

栓本体２４の上側筒部２４ａは、蓋体２３の受け部２３ｃに対して嵌着が許容される大きさ及び形状に形成している。その上側筒部２４ａの外周には、受け部２３ｃの係止爪２３ｄが係止される係止孔２４ｂを周方向に所定間隔を隔てて形成している。
さらに、栓本体２４の上側筒部２４ａよりも下側の中央部外周には、飲み口部材１５の螺着ねじ部２２ａと対応して、他方の螺着ねじ部２２ｂを螺刻している。 The upper cylinder portion 24 a of the plug body 24 is formed in a size and shape that allows fitting to the receiving portion 23 c of the lid body 23. On the outer periphery of the upper cylindrical portion 24a, locking holes 24b for locking the locking claws 23d of the receiving portion 23c are formed at predetermined intervals in the circumferential direction.
Further, on the outer periphery of the central portion below the upper cylindrical portion 24a of the plug body 24, the other screwing screw portion 22b is screwed in correspondence with the screwing screw portion 22a of the spout member 15.

上述した蓋体２３と栓本体２４は、栓本体２４の上側筒部２４ａを、蓋体２３の受け部２３ｃに対して下方から嵌め込むとともに、上側筒部２４ａの係止孔２４ｂに、受け部２３ｃの係止爪２３ｄを係合して、蓋体２３と栓本体２４とを一体的に嵌着固定している。 The lid body 23 and the plug body 24 described above are fitted into the upper cylinder portion 24a of the plug body 24 from below with respect to the receiving portion 23c of the lid body 23, and are also received in the locking holes 24b of the upper cylinder portion 24a. The locking claw 23d of 23c is engaged, and the lid body 23 and the plug main body 24 are integrally fitted and fixed.

栓本体２４の下端部外周には、柔軟性を有する弾性部材（具体的には、シリコーンゴム）にて円板状に形成した止水用のパッキン２５を、該栓本体２４の下端部外周に沿って形成した階段状の突出部２４ｃに嵌着している（図１２参照）。
その突出部２４ｃよりも下側の下端部には、パッキン２５（具体的には、反転部２５ａの外周部分）が押し付けられる支持部２４ｅを形成している。 On the outer periphery of the lower end portion of the stopper main body 24, a water-stopping packing 25 formed in a disk shape with a flexible elastic member (specifically, silicone rubber) is provided on the outer periphery of the lower end portion of the stopper main body 24. It fits into the step-like protrusion 24c formed along (see FIG. 12).
A support portion 24e to which the packing 25 (specifically, the outer peripheral portion of the reversing portion 25a) is pressed is formed at the lower end portion below the protruding portion 24c.

支持部２４ｅにおける反転部２５ａの外周部分が押し付けられる下面は、外周側から内周側に向けて徐々に低くなるテーパー面に傾斜している。
このため、容器本体１１における貯留空間Ｘの圧力が高くなるほど、反転部２５ａの外周部分が支持部２４ｅの下面に対して垂直に押し付けられるため、より高い止水性を確保することができる。 The lower surface of the support portion 24e against which the outer peripheral portion of the reversing portion 25a is pressed is inclined to a tapered surface that gradually decreases from the outer peripheral side toward the inner peripheral side.
For this reason, the higher the pressure in the storage space X in the container body 11, the more the outer peripheral portion of the reversing portion 25a is pressed perpendicularly to the lower surface of the support portion 24e.

パッキン２５は、栓本体２４の下端側開口部２４ｄが閉塞される大きさ及び形状に形成している。その開口部２４ｄと対応するパッキン２５の中央部には、上方に向けて突出する断面弧状の反転部２５ａを形成している（図３、図４、図１２参照）。 The packing 25 is formed in such a size and shape that the lower end side opening 24d of the plug body 24 is closed. A reversing portion 25a having an arcuate cross section projecting upward is formed at the center of the packing 25 corresponding to the opening 24d (see FIGS. 3, 4, and 12).

図１２は図３のb部に示す栓体１６のパッキン２５による止水状態の説明図、詳しくは、図１２（ａ）は栓体１６のパッキン２５による止水状態の拡大断面図、図１２（ｂ）は貯留空間Ｘと内部空間Ｙとを連通した状態の拡大断面図である。 FIG. 12 is an explanatory diagram of a water-stopped state by the packing 25 of the plug body 16 shown in part b of FIG. 3. Specifically, FIG. 12 (a) is an enlarged sectional view of the water-stopped state by the packing 25 of the plug body 16, FIG. (B) is an enlarged sectional view of a state in which the storage space X and the internal space Y are communicated with each other.

パッキン２５の反転部２５ａは、容器本体１１における貯留空間Ｘの内圧の変化に応じて、栓本体２４の内部空間Ｙに向けて上向きに突出する突出状態（図１２（ａ）参照）と、該突出状態と反対に向けて下向きに突出する反転状態（図１２（ｂ）参照）とに弾性変位可能な弾性を備えている。
常圧時において、反転部２５ａは、該反転部２５ａ自体の復元力によって上方に向けて弧状に突出する突出状態を保っている。 The reversing portion 25a of the packing 25 has a protruding state (see FIG. 12A) that protrudes upward toward the internal space Y of the plug body 24 in accordance with the change in the internal pressure of the storage space X in the container body 11. Elasticity capable of elastic displacement is provided in an inverted state (see FIG. 12B) that protrudes downward in the opposite direction to the protruding state.
Under normal pressure, the reversing portion 25a maintains a projecting state in which the reversing portion 25a projects in an arc shape upward due to the restoring force of the reversing portion 25a itself.

さらに、反転部２５ａの支持部２４ｅに対して押し付けられる外周部分の一部には、平面視丸形状の調圧孔２６を厚み方向に貫通して形成している。
調圧孔２６の下側周縁部には、下方に向けて突出する凸状の突出部２６ａを、該調圧孔２６の下側周縁部に沿って周方向に連続して形成している。つまり、調圧孔２６における周縁部の肉厚を、該調圧孔２６の周辺部分に比べて厚くしている。 Further, a pressure adjusting hole 26 having a round shape in plan view is formed through a part of the outer peripheral portion pressed against the support portion 24e of the reversing portion 25a in the thickness direction.
On the lower peripheral edge of the pressure adjusting hole 26, a convex protrusion 26 a that protrudes downward is formed continuously in the circumferential direction along the lower peripheral edge of the pressure adjusting hole 26. That is, the thickness of the peripheral portion of the pressure adjusting hole 26 is made thicker than the peripheral portion of the pressure adjusting hole 26.

このため、反転部２５ａの反転動作が何回も繰り返されても、調圧孔２６の周縁部に、例えば、割れや亀裂等が生じにくく、調圧孔２６による調圧作用が継続して得られるとともに、気密性及び止水性を保つために必要な強度を確保することができる。
なお、実施例では、調圧孔２６を１箇所形成しているが、必要に応じて複数個所形成してもよい。 For this reason, even if the reversing operation of the reversing portion 25a is repeated many times, for example, cracks and cracks are hardly generated in the peripheral portion of the pressure regulating hole 26, and the pressure regulating action by the pressure regulating hole 26 is continuously obtained. In addition, it is possible to ensure the strength necessary to maintain airtightness and waterstop.
In addition, in the Example, although the pressure regulation hole 26 is formed in one place, you may form in multiple places as needed.

上述の蓋体２３と栓本体２４とで構成される栓体１６を、容器本体１１の口部１２に固定した下口部材１３に対して回動可能に螺着する場合、蓋体２３が一体的に嵌着された栓本体２４を、容器本体１１の口部１２に螺合した飲み口部材１５に挿入するとともに、一対の螺着ねじ部２２ａ，２２ｂが互いに螺合するよう閉栓方向ＣＬに回動操作する。
栓本体２４の下端部に嵌着したパッキン２５の外周部分を、飲み口部材１５における下側筒部１５ｂの突出部１５ｋに対応して密着した状態に押し付けるので、止水性を確保することができる。 When the plug body 16 composed of the lid body 23 and the plug body 24 described above is rotatably screwed to the lower mouth member 13 fixed to the mouth portion 12 of the container body 11, the lid body 23 is integrated. The plug body 24 fitted into the container body 11 is inserted into the drinking mouth member 15 screwed into the mouth portion 12 of the container body 11, and the pair of screwing screw portions 22a, 22b are screwed together in the closing direction CL. Rotate.
Since the outer peripheral portion of the packing 25 fitted to the lower end portion of the stopper main body 24 is pressed against the protruding portion 15k of the lower cylindrical portion 15b in the drinking mouth member 15, the water-stopping property can be ensured. .

つまり、栓本体２４のパッキン２５によって、下口部材１３における飲み口部材１５の開口部１５ｍを閉塞するため、容器本体１１の貯留空間Ｘに貯留された液体が、飲み口部材１５の開口部１５ｍから流出することを防止できる。 That is, since the opening 15m of the drinking mouth member 15 in the lower mouth member 13 is closed by the packing 25 of the stopper body 24, the liquid stored in the storage space X of the container body 11 is opened to the opening 15m of the drinking mouth member 15. Can be prevented from flowing out.

容器本体１１における貯留空間Ｘの内圧が常圧時の場合、パッキン２５の外周部分は、該パッキン２５自体の復元力によって栓本体２４の支持部２４ｅに対して密着した状態に押し付けられている。
さらに、その外周部分に配置した調圧孔２６の上面側周縁部も、支持部２４ｅの下側斜面に対して垂直に密着した状態に押し付けられるため、気密性及び止水性を同時に確保することができる（図１２（ａ）の実線参照）。 When the internal pressure of the storage space X in the container main body 11 is normal pressure, the outer peripheral portion of the packing 25 is pressed against the support portion 24e of the plug main body 24 by the restoring force of the packing 25 itself.
Furthermore, since the upper surface side peripheral portion of the pressure adjusting hole 26 disposed in the outer peripheral portion is also pressed in a state of being in close contact with the lower slope of the support portion 24e, airtightness and water stoppage can be secured at the same time. (See the solid line in FIG. 12 (a)).

容器本体１１における貯留空間Ｘの内圧が常圧時よりも上昇した場合、パッキン２５の外周部分が支持部２４ｅの下側斜面に対して強く押し付けられるとともに、調圧孔２６の上面側周縁部も支持部２４ｅの下側斜面に対して垂直に強く押し付けられるため、より高い気密性及び止水性を確保することができる。
したがって、上述のように閉栓した状態において、携帯飲料容器１０が転倒することがあっても、容器本体１１の貯留空間Ｘに貯留された液体が流出することを確実に防止できる。 When the internal pressure of the storage space X in the container main body 11 is higher than that at normal pressure, the outer peripheral portion of the packing 25 is strongly pressed against the lower slope of the support portion 24e, and the upper peripheral edge portion of the pressure adjusting hole 26 is also Since it is strongly pressed perpendicularly to the lower slope of the support portion 24e, it is possible to ensure higher airtightness and waterstop.
Therefore, even if the portable beverage container 10 falls over in the closed state as described above, it is possible to reliably prevent the liquid stored in the storage space X of the container body 11 from flowing out.

容器本体１１の貯留空間Ｘに貯留された液体の温度が低下する等して、貯留空間Ｘの内圧が常圧時よりも下降した場合、栓本体２４のパッキン２５が、飲み口部材１５における下側筒部１５ｂの突出部１５ｋに対して強く押し付けられるため、栓体１６を開栓方向ＯＰへ回動操作する際の抵抗が大きくなり、開栓することが困難となる。 When the temperature of the liquid stored in the storage space X of the container main body 11 decreases, for example, when the internal pressure of the storage space X is lower than that at normal pressure, the packing 25 of the plug main body 24 is lowered in the mouthpiece member 15. Since it is strongly pressed against the protruding portion 15k of the side tube portion 15b, the resistance when the plug body 16 is turned in the opening direction OP increases, and it is difficult to open the plug.

ところが、貯留空間Ｘの内圧が常圧時よりも下降した際、パッキン２５の反転部２５ａが復元力に抗して下向きに反転する（図１２（ａ）の仮想線参照）。 However, when the internal pressure of the storage space X is lower than that at normal pressure, the reversing portion 25a of the packing 25 is reversed downward against the restoring force (see the phantom line in FIG. 12A).

さらに、パッキン２５の反転部２５ａが下方に向けて引き下げられることで、パッキン２５の外周部分と、支持部２４ｅの下側斜面との間に隙間が生じることになる。 Furthermore, the reversal part 25a of the packing 25 is pulled downward, whereby a gap is generated between the outer peripheral part of the packing 25 and the lower slope of the support part 24e.

パッキン２５の外周部分に形成した調圧孔２６の上面側周縁部が、支持部２４ｅの下側斜面から引き離され、調圧孔２６の上面側周縁部と、支持部２４ｅの下側斜面との間に隙間が形成されるため、調圧孔２６を介して、容器本体１１の貯留空間Ｘと、栓本体２４の内部空間Ｙとが連通される（図１２（ｂ）の実線参照）。 The upper surface side peripheral portion of the pressure adjusting hole 26 formed in the outer peripheral portion of the packing 25 is separated from the lower inclined surface of the support portion 24e, and the upper surface side peripheral portion of the pressure adjusting hole 26 and the lower inclined surface of the support portion 24e Since a gap is formed between them, the storage space X of the container main body 11 and the internal space Y of the stopper main body 24 communicate with each other through the pressure adjusting hole 26 (see the solid line in FIG. 12B).

容器本体１１の内部空間Ｙは、図示しない通気路を介して栓体１６の外部と連通しているので、調圧孔２６を介して、栓本体２４の内部空間Ｙ側から容器本体１１の貯留空間Ｘ側に向けて外気の吸気が許容される。 Since the internal space Y of the container main body 11 communicates with the outside of the plug body 16 through an air passage (not shown), the container main body 11 is stored from the internal space Y side of the plug main body 24 via the pressure adjusting hole 26. Intake of outside air is allowed toward the space X side.

その吸気によって、容器本体１１における貯留空間Ｘの内圧が常圧時に復帰した際、飲み口部材１５における下側筒部１５ｂの突出部１５ｋに対するパッキン２５の押し付け力が常圧時の状態に復帰するため、栓体１６を開栓方向ＯＰへ回動操作する際に付与される接触抵抗が小さくなり、栓体１６の開栓操作が楽に行える。 When the internal pressure of the storage space X in the container main body 11 returns to normal pressure due to the intake air, the pressing force of the packing 25 against the protruding portion 15k of the lower cylindrical portion 15b in the drinking mouth member 15 returns to the normal pressure state. Therefore, the contact resistance imparted when the plug body 16 is turned in the opening direction OP is reduced, and the plug body 16 can be opened easily.

容器本体１１における貯留空間Ｘの内圧が常圧時に復帰した際、パッキン２５の反転部２５ａが、該反転部２５ａ自体の復元力によって上向きに突出する突出状態に復帰するとともに、パッキン２５の外周部分及び調圧孔２６の上面側周縁部が支持部２４ｅの下側斜面に対して密着した状態に押し付けられるため、気密性及び止水性が確保することができる。 When the internal pressure of the storage space X in the container body 11 returns to normal pressure, the reversing portion 25a of the packing 25 returns to the protruding state in which the reversing portion 25a itself protrudes upward, and the outer peripheral portion of the packing 25 And since the upper surface side peripheral part of the pressure regulation hole 26 is pressed in the state closely_contact | adhered with respect to the lower side slope of the support part 24e, airtightness and water-proof property can be ensured.

また、栓体１６を開栓方向ＯＰへ回動操作して、栓体１６における蓋体２３の下端部を、下口部材１３における肩部材１４の段部１４ｅよりも上方へ移動させた際、蓋体２３の下端部が、肩部材１４に形成した凹状係合部２０の壁部２０ｂにて支持される（図３、図１０(ａ)参照）。 Further, when the plug body 16 is rotated in the opening direction OP and the lower end portion of the lid body 23 in the plug body 16 is moved upward from the step portion 14e of the shoulder member 14 in the lower mouth member 13, The lower end portion of the lid body 23 is supported by the wall portion 20b of the concave engagement portion 20 formed on the shoulder member 14 (see FIGS. 3 and 10A).

一方、栓体１６を閉栓方向ＣＬへ回動操作して、栓体１６における蓋体２３の下端側内周を、下口部材１３における肩部材１４の段部１４ｅの外周面に係合した際、栓体１６の蓋体２３が下口部材１３の肩部材１４に対してガタツキ無く同心円に嵌着及び保持される。 On the other hand, when the stopper 16 is turned in the closing direction CL and the inner periphery of the lower end side of the lid 23 in the stopper 16 is engaged with the outer peripheral surface of the step 14e of the shoulder member 14 in the lower opening member 13. The lid body 23 of the plug body 16 is fitted and held concentrically with the shoulder member 14 of the lower mouth member 13 without rattling.

上述のように栓体１６を上方へ移動した際、肩部材１４における凹状係合部２０と反対側の外周面には該凹状係合部２０が形成されていないため、栓体１６における蓋体２３の下端側内周と、下口部材１３における肩部材１４の上側筒部１４ａの上端側外周との対向周面に、上側筒部１４ａと段部１４ｅとの段差分だけ、蓋体２３の飲み口２３ａと対応する方向へ栓体１６の偏心移動が許容されるクリアランスＳが形成される（図７、図１０(ｂ)参照）。 When the plug body 16 is moved upward as described above, since the concave engagement portion 20 is not formed on the outer peripheral surface of the shoulder member 14 opposite to the concave engagement portion 20, the lid body of the plug body 16. 23 on the opposite peripheral surface of the lower end side inner periphery of the lower end member 13 and the upper end side outer periphery of the upper cylindrical portion 14a of the shoulder member 14 of the lower opening member 13 by the level difference between the upper cylindrical portion 14a and the stepped portion 14e. A clearance S is formed in which the eccentric movement of the plug body 16 is allowed in a direction corresponding to the drinking mouth 23a (see FIGS. 7 and 10B).

次に、上述した携帯飲料容器１０から液体を注出する動作を説明する。栓体１６を開栓方向ＯＰへ回動操作して、パッキン２５を飲み口部材１５の開口部１５ｍが解放される方向へ移動させ、容器本体１１の貯留空間Ｘと飲み口部材１５の飲み口１５ｃとを液体の注出が許容される状態に開栓する。 Next, the operation | movement which pours out the liquid from the portable drink container 10 mentioned above is demonstrated. The stopper 16 is rotated in the opening direction OP to move the packing 25 in the direction in which the opening 15m of the drinking mouth member 15 is released, and the storage space X of the container body 11 and the drinking mouth of the drinking mouth member 15 are moved. 15c is opened to allow the liquid to be dispensed.

栓体１６の開栓操作により、蓋体２３の飲み口突出孔２３ａを飲み口部材１５の飲み口１５ｃと一致する位置に移動させて、下口部材１３の飲み口１５ｃを栓体１６の飲み口突出孔２３ａより上方に突出した際、下口部材１３の飲み口１５ｃは、栓体１６の飲み口露出部２３Ｔよりさらに上方に突出されるので、下口部材１３の飲み口１５ｃから液体を直接飲む場合、飲み易い突出量を確保することができる（図５〜図７、図９(ｂ)参照）。 By the opening operation of the plug body 16, the drinking hole protruding hole 23 a of the lid body 23 is moved to a position that coincides with the drinking hole 15 c of the drinking hole member 15, and the drinking hole 15 c of the lower mouth member 13 is swallowed by the plug body 16. When projecting upward from the mouth projecting hole 23a, the drinking mouth 15c of the lower mouth member 13 projects further upward from the drinking mouth exposing portion 23T of the plug body 16, so that liquid can be discharged from the drinking mouth 15c of the lower mouth member 13. When drinking directly, it is possible to secure a protruding amount that is easy to drink (see FIGS. 5 to 7 and FIG. 9B).

蓋体２３の飲み口突出孔２３ａを飲み口部材１５の飲み口１５ｃと一致する位置に回動した際、栓体１６における蓋体２３の凸部２３ｂが、肩部材１４における凹状係合部２０の壁部２０ｂを乗り越えて溝部２０ａに係合し、蓋体２３の飲み口突出孔２３ａが飲み口部材１５の飲み口１５ｃと一致する位置に回動規制される(図７、図１０(ｂ)、図１１(ａ)参照)。 When the mouthpiece protrusion hole 23 a of the lid body 23 is rotated to a position that coincides with the mouthpiece 15 c of the mouthpiece member 15, the convex portion 23 b of the lid body 23 in the plug body 16 becomes the concave engagement portion 20 in the shoulder member 14. Is engaged with the groove 20a, and the rotation of the drinking hole projecting hole 23a of the lid 23 is restricted to the position where it coincides with the drinking hole 15c of the drinking hole member 15 (FIGS. 7 and 10 (b)). ), FIG. 11 (a)).

上述のように、下口部材１３の飲み口１５ｃを、栓体１６の飲み口露出部２３Ｔより上方に突出した状態において、携帯飲料容器１０を、下口部材１３における飲み口部材１５の飲み口１５ｃが手前側となる姿勢に保持して、該飲み口１５ｃから液体が注出される所望の角度に傾ける。
その際、栓体１６における蓋体２３の飲み口突出孔２３ａと、下口部材１３における飲み口部材１５の飲み口１５ｃとの位置が周方向にずれることを防止でき、飲み口部材１５の飲み口１５ｃを、蓋体２３の飲み口突出孔２３ａより上方に向けて所定量突出した状態に保つことができる。 As described above, in the state where the drinking mouth 15 c of the lower mouth member 13 protrudes upward from the drinking mouth exposed portion 23 </ b> T of the plug body 16, the portable beverage container 10 is taken as the drinking mouth of the drinking mouth member 15 in the lower mouth member 13. While maintaining the posture where 15c is on the near side, it is tilted to a desired angle at which the liquid is poured out from the drinking mouth 15c.
At that time, it is possible to prevent the positions of the drinking hole projecting hole 23a of the lid body 23 in the plug body 16 and the drinking hole 15c of the drinking hole member 15 in the lower mouth member 13 from being shifted in the circumferential direction. The mouth 15c can be maintained in a state of protruding a predetermined amount upward from the drinking hole projection hole 23a of the lid 23.

この結果、携帯飲料容器１０を所望の角度に傾けて、下口部材１３における飲み口部材１５の飲み口１５ｃから所望量の液体を注出する際、蓋体２３の飲み口突出孔２３ａと飲み口部材１５の飲み口１５ｃとの位置が不意にずれてしまうことを防止でき、例えば、飲み口部材１５の飲み口１５ｃから液体を直接飲んだり、コップ等の容器に注いだりすることが安心して行える。 As a result, when the portable beverage container 10 is tilted to a desired angle and a desired amount of liquid is poured out from the drinking mouth 15c of the drinking mouth member 15 in the lower mouth member 13, the drinking mouth projecting hole 23a of the lid 23 and the drinking mouth The position of the mouth member 15 with respect to the drinking mouth 15c can be prevented from being shifted unexpectedly. For example, it is safe to drink liquid directly from the drinking mouth 15c of the drinking mouth member 15 or to pour it into a container such as a cup. Yes.

注出中において、容器本体１１内に貯留された液体の貯留量が減少するのに伴って貯留空間Ｘの内圧が低下しても、飲み口部材１５の通気路１５ｄから容器本体１１内に向けて外気の流入が許容されるため、容器本体１１内に貯留された液体を飲み口１５ｃからスムースに注出することができる。 Even when the internal pressure of the storage space X decreases as the storage amount of the liquid stored in the container body 11 decreases during the dispensing, the direction from the air passage 15d of the spout member 15 toward the container body 11 is reduced. Since the inflow of outside air is allowed, the liquid stored in the container body 11 can be smoothly poured out from the drinking mouth 15c.

また、蓋体２３の凸部２３ｂを、凹状係合部２０の壁部２０ｂを乗り越えさせて溝部２０ａに係合する際に付与される凹凸感触により、蓋体２３の口部２３が、飲み口部材１５の飲み口１５ｃと一致する位置に回動されたことを、栓体１６を回動操作する手に付与される操作感によって把握することができるため、栓体１６を必要以上に回し過ぎてしまう、あるいは、回し足りないことを防止できる。 Further, the mouth portion 23 of the lid body 23 is made to have a drinking mouth due to the uneven feel imparted when the convex portion 23b of the lid body 23 is moved over the wall portion 20b of the concave engagement portion 20 and engaged with the groove portion 20a. Since it can be grasped by the operational feeling given to the hand that rotates the plug body 16 that the member 15 has been rotated to a position that coincides with the drinking hole 15c, the plug body 16 is turned more than necessary. Can be prevented.

さらにまた、蓋体２３の飲み口突出孔２３ａを飲み口部材１５の飲み口１５ｃと一致する位置に回動した状態において、携帯飲料容器１０を、飲み口部材１５の飲み口１５ｃから液体が注出される角度に傾けた際、その傾ける動作によって、クリアランスＳと対応する移動量だけ、栓体１６の全体が、肩部材１４における凹状係合部２０の溝部２０ａと、蓋体２３の凸部２３ｂとが互いに係合される方向に向けて偏心移動が許容される(図７、図１０(ｂ)、図１１(ａ)参照)。 Furthermore, in the state where the drinking hole projecting hole 23a of the lid body 23 is rotated to a position coinciding with the drinking hole 15c of the drinking hole member 15, the liquid is poured into the portable beverage container 10 from the drinking hole 15c of the drinking hole member 15. When tilted to the exit angle, the tilting operation causes the entire plug body 16 to be moved by a distance corresponding to the clearance S, so that the groove portion 20a of the concave engagement portion 20 in the shoulder member 14 and the convex portion 23b of the lid body 23 are formed. Are allowed to move in the direction in which they are engaged with each other (see FIG. 7, FIG. 10 (b), FIG. 11 (a)).

これにより、溝部２０ａと凸部２３ｂとの係合が許容される方向への栓体１６の偏心移動方向を、下口部材１３における飲み口部材１５の飲み口１５ｃと対応する方向と一致させて、より確実に係合することができる。 Accordingly, the eccentric movement direction of the plug body 16 in the direction in which the engagement between the groove portion 20a and the convex portion 23b is allowed to coincide with the direction corresponding to the drinking mouth 15c of the drinking mouth member 15 in the lower mouth member 13. , Can be engaged more reliably.

飲み口１５ｃと反対側の位置にて、蓋体２３の凸部２３ｂが肩部材１４における溝部２０ａに対して係合され、栓体１６の飲み口突出孔２３ａが飲み口部材１５の飲み口１５ｃと一致する位置に回動規制されるので、栓体１６における蓋体２３の飲み口突出孔２３ａとの位置がずれることを防止することができる。 The protrusion 23b of the lid 23 is engaged with the groove 20a in the shoulder member 14 at a position opposite to the drinking mouth 15c, and the drinking mouth protruding hole 23a of the stopper 16 is the drinking mouth 15c of the drinking mouth member 15. Therefore, it is possible to prevent the position of the lid body 23 from the drinking hole projecting hole 23a from being displaced.

この結果、携帯飲料容器１０を所望する角度に傾けて、下口部材１３における飲み口部材１５の飲み口１５ｃから液体を直接飲んだり、コップ等の容器に注いだりする際、栓体１６が不意に回転することを、より確実に防止できる。 As a result, when the portable beverage container 10 is tilted to a desired angle and a liquid is directly drunk from the drinking port 15c of the drinking port member 15 in the lower mouth member 13 or poured into a container such as a cup, the plug 16 is inadvertent. Can be more reliably prevented.

さらにまた、栓体１６における蓋体２３の凸部２３ｂを、下口部材１３における肩部材１４の凹状係合部２０の壁部２０ｂを乗り越えさせて溝部２０ａに係合する動作と、凸部２３ｂを、溝部２０ａから離脱する動作とが上述したクリアランスＳによって許容されるので、栓体１６を開栓方向ＯＰあるいは閉栓方向ＣＬへ回動する際の回動操作が何等支障無く行える(図7、図１０(ａ)、図１１(ｂ)参照)。 Furthermore, the projection 23b of the lid 23 in the plug body 16 gets over the wall 20b of the concave engagement portion 20 of the shoulder member 14 in the lower mouth member 13 and engages with the groove 20a, and the projection 23b. Is permitted by the clearance S described above, so that the rotation operation when the plug body 16 is rotated in the opening direction OP or the closing direction CL can be performed without any trouble (FIG. 7, (See FIGS. 10 (a) and 11 (b)).

なお、栓体１６を閉栓方向ＣＬへ回動操作して、蓋体２３の飲み口突出孔２３ａを飲み口部材１５の飲み口閉塞部１５Ｔと一致する位置に回動すれば、蓋体２３の飲み口突出孔２３ａが飲み口部材１５の飲み口閉塞部１５Ｔに係合するので、蓋体２３の飲み口突出孔２３ａを閉塞することができる（図１〜図３、図９(ａ)参照）。 In addition, if the stopper 16 is rotated in the closing direction CL and the drinking hole protruding hole 23a of the lid 23 is rotated to a position coinciding with the drinking hole closing portion 15T of the drinking mouth member 15, the lid 23 Since the drinking hole protrusion hole 23a engages with the drinking hole blocking portion 15T of the drinking hole member 15, the drinking hole protrusion hole 23a of the lid body 23 can be closed (see FIGS. 1 to 3 and FIG. 9A). ).

また、容器本体１１の内部を清掃する場合、栓体１６を、飲み口部材１５と栓本体２４とに螺刻した螺着ねじ部２２ａ，２２ｂの螺合が解除される開栓方向ＯＰへ回動操作し、栓体１６の栓本体２４を飲み口部材１５から抜き取る。
続いて、飲み口部材１５を、容器本体１１と飲み口部材１５とに螺刻した螺着ねじ部１８ａ，１８ｂの螺合が解除される方向へ回動操作し、肩部材１４及び飲み口部材１５からなる下口部材１３を、容器本体１１の上端部から取り外せば、容器本体１１の口部１２全体が開口されるため、容器本体１１の内部を綺麗に洗浄する作業が容易に行える。 Further, when cleaning the inside of the container body 11, the stopper 16 is turned in the opening direction OP in which the screwing screw portions 22 a and 22 b screwed into the drinking mouth member 15 and the stopper body 24 are released. The stopper main body 24 of the stopper body 16 is removed from the drinking mouth member 15 by operating.
Subsequently, the mouthpiece member 15 is rotated in the direction in which the screwing screw portions 18a and 18b screwed into the container body 11 and the mouthpiece member 15 are released, and the shoulder member 14 and the mouthpiece member If the lower opening member 13 consisting of 15 is removed from the upper end portion of the container main body 11, the entire mouth portion 12 of the container main body 11 is opened, so that the operation of cleanly cleaning the inside of the container main body 11 can be easily performed.

この発明の構成と、前記実施形態との対応において、
この発明の回転位置規制手段は、実施形態における凹状係合部２０の溝部２０ａと、凸部２３ｂに対応し、
以下同様に、
肩部は、肩部材１４に対応し、
飲み口部は、飲み口部材１５に対応し、
蓋部は、蓋体２３に対応し、
栓部は、栓本体２４に対応し、
調圧孔は、調圧孔２６に対応し、
回り止め手段は、凸部１４ｃと、凹部１５ｉに対応するも、
この発明は、上述の実施形態の構成のみに限定されるものではなく、請求項に示される技術思想に基づいて応用することができ、多くの実施の形態を得ることができる。 In the correspondence between the configuration of the present invention and the embodiment,
The rotational position restricting means of the present invention corresponds to the groove portion 20a of the concave engagement portion 20 and the convex portion 23b in the embodiment,
Similarly,
The shoulder corresponds to the shoulder member 14,
The mouthpiece part corresponds to the mouthpiece member 15,
The lid corresponds to the lid 23,
The plug portion corresponds to the plug body 24,
The pressure adjusting hole corresponds to the pressure adjusting hole 26,
The anti-rotation means corresponds to the convex portion 14c and the concave portion 15i,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

上述の実施形態では、下口部材１３を、肩部材１４と飲み口部材１５とに分離可能に構成しているが、例えば、環状の肩部と筒状の飲み口部とを一体的に形成した１つの部材で構成してもよい。 In the above-described embodiment, the lower mouth member 13 is configured to be separable into the shoulder member 14 and the drinking mouth member 15, but for example, an annular shoulder portion and a cylindrical drinking mouth portion are integrally formed. You may comprise by one member.

Ｘ…貯留空間
Ｙ…内部空間
Ｓ…クリアランス
１０…携帯飲料容器
１１…容器本体
１２…口部
１３…下口部材
１４…肩部材
１４ｃ…凸部
１５…飲み口部材
１５ｃ…飲み口
１５ｈ…環状突起
１５ｉ…凹部
１５Ｔ…飲み口閉塞部
１６…栓体
１９…環状突部
２０…凹状係合部
２０ａ…溝部
２０ｂ…壁部
２１…パッキン
２３…蓋体
２３ａ…飲み口突出孔
２３ｂ…凸部
２３Ｔ…飲み口露出部
２４…栓本体
２４ｃ…突出部
２５…パッキン
２５ａ…反転部
２６…調圧孔 X: Storage space Y ... Internal space S ... Clearance 10 ... Portable beverage container 11 ... Container body 12 ... Mouth part 13 ... Lower mouth member 14 ... Shoulder member 14c ... Convex part 15 ... Drinking mouth member 15c ... Drinking mouth 15h ... Annular projection 15i ... concave portion 15T ... drinking mouth closing portion 16 ... plug body 19 ... annular projection 20 ... concave engagement portion 20a ... groove portion 20b ... wall portion 21 ... packing 23 ... lid body 23a ... drinking mouth protruding hole 23b ... convex portion 23T ... Drinking port exposure part 24 ... Plug body 24c ... Projection part 25 ... Packing 25a ... Inversion part 26 ... Pressure adjustment hole

Claims

A container body having a storage space for storing a liquid therein;
A plug for closing the opening communicating with the storage space formed in the upper end side of the container body;
A packing made of an elastic member that stops the gap between the plug and the opening attached to the outer peripheral portion on the lower end side of the plug, and
In the central part on the lower end side of the plug body, an opening that communicates with the internal space inside the plug body is provided,
The packing is formed in a size and shape that closes the opening of the plug,
The portable drink container which formed the pressure regulation hole in which the communication with the storage space of the said container main body and the internal space of the said plug body was permitted in the part pressed on the lower end side peripheral part of the said plug body in the said packing.

In the central portion corresponding to the opening of the plug in the packing, a reversing portion having an arc-shaped cross section protruding toward the inside of the plug is formed,
The inversion part,
The portable beverage container according to claim 1, wherein the portable beverage container is formed so as to be elastically deformable in a protruding state protruding toward the inside of the plug body and an inverted state protruding in the opposite direction to the protruding state.

The portable beverage container according to claim 1 or 2, wherein a wall thickness of a peripheral edge portion of the pressure adjusting hole is formed thicker than a peripheral portion of the pressure adjusting hole.

The peripheral edge portion of the pressure adjusting hole in the packing and the peripheral edge portion of the opening in the plug body to which the pressure adjusting hole is pressed are formed into shapes that are pressed perpendicular to each other. The portable beverage container as described.