JP5240313B2

JP5240313B2 - Beverage container closure

Info

Publication number: JP5240313B2
Application number: JP2011075359A
Authority: JP
Inventors: 和広湯口; 邦生初本
Original assignee: Thermos KK
Current assignee: Thermos KK
Priority date: 2011-03-30
Filing date: 2011-03-30
Publication date: 2013-07-17
Anticipated expiration: 2031-03-30
Also published as: CN102730301A; JP2012206764A; CN102730301B; TW201238849A; TWI455852B

Description

本発明は、飲料用容器の栓体に関するものである。 The present invention relates to a stopper for a beverage container.

従来の飲料用容器は、飲料用の容器本体の上部開口に螺子により被着された栓体の口部に蓋体が開閉自在に設けられており、前記栓体には容器本体の開口を水密に塞ぐシール部材が設けられており、このシール部材はリング状であって、栓体の下部外面に形成された取り付け用溝にややはみ出した状態で嵌着したものであり、このシール部材が容器本体の上部開口側の内面に水密に取り付けられるようになっている（例えば特許文献１）。 A conventional beverage container is provided with a lid that can be freely opened and closed at the mouth of a stopper body that is attached to the upper opening of a beverage container body with a screw. The sealing member is provided in a ring shape and is fitted in a mounting groove formed on the lower outer surface of the plug body in a slightly protruding state. It is designed to be watertightly attached to the inner surface on the upper opening side of the main body (for example, Patent Document 1).

特開２００２−２０９７６４号公報JP 2002-209664 A

従来技術のようにシール部材が栓体の下部外面に形成された取り付け用溝に嵌着したものにおいては、シール部材を嵌着する溝が全周にあるため、シール部材をいったん伸ばして着脱しなければならず、着脱操作性に懸念があり、またシール部材の取り付けは、シール部材が取り付け用溝よりややはみ出た状態を視認することなどによって行うので取り付け状態の確認がしにくい。さらに栓体を回して開栓や閉栓をする時においてシール部材と上部開口の内面との間に摺動摩擦抵抗が発生し、この結果、回動による栓体の着脱の操作抵抗（トルク）が増加することで、操作が重くなるなど操作性が低くなり、そして、十分に締め付けしないと漏れてしまう懸念がある。 In the case where the sealing member is fitted in the mounting groove formed on the lower outer surface of the plug body as in the prior art, the groove for fitting the sealing member is on the entire circumference. There is a concern about the operability of attachment and detachment, and the attachment of the seal member is difficult to confirm the attachment state because the seal member is observed by visually checking the state where the seal member protrudes slightly from the attachment groove. Further, when the plug is turned to open or close, sliding friction resistance is generated between the seal member and the inner surface of the upper opening, and as a result, the operation resistance (torque) of the plug attachment / detachment due to rotation increases. By doing so, the operability becomes low, for example, the operation becomes heavy, and there is a concern that it will leak if not tightened sufficiently.

解決しようとする問題点は、栓体本体にシール部材を設け飲料用容器の栓体において、シール部材の着脱操作性、さらには付け忘れや紛失の防止のためにシール部材の取り付け状態の視認性を向上する点である。また、開栓や閉栓をする時の栓体の回動による栓着脱操作性やシール部材の止水性、着脱耐久性、栓体の洗浄性を向上する点である。さらに、内部減圧状態での開栓時におけるシール部材の脱落防止を図る点である。 The problem to be solved is that the plug body is provided with a sealing member, and the plug body of the beverage container has a detachable operability of the sealing member, and also the visibility of the sealing member mounting state to prevent forgetting and loss. It is a point to improve. In addition, the plug attachment / detachment operability by turning the plug body when opening and closing the plug, the waterproofness of the seal member, the attachment / detachment durability, and the cleaning performance of the plug body are improved. Furthermore, the seal member is prevented from falling off when opening the plug in the internal decompression state.

請求項１の発明の飲料用容器の栓体は、飲料用の容器本体の上部開口に被着され口部を有する栓体本体と、前記栓体本体に被着され該栓体本体の口部を開閉する蓋体と、前記栓体本体に装着され前記上部開口を水密に塞ぐシール部材を有する飲料用容器の栓体において、内部に上下方向の流路を設けた前記栓体本体の下部に底壁を設け、前記底壁に上下方向の第一の注液穴を設けると共に該底壁の中央に係合穴を設け、前記シール部材を有底凹状に形成し、該シール部材の底面部に第二の注液穴を設けると共に、前記底面部の中央に上向きの係合突起を設け、該係合突起を前記係合穴に挿入することにより前記シール部材を前記栓体本体に周方向で回転可能に設けることを特徴とする。 According to a first aspect of the present invention, there is provided a stopper for a beverage container. The stopper body is attached to an upper opening of a beverage container body and has a mouth portion, and the mouth portion of the stopper body is attached to the stopper body. A beverage container having a lid member that opens and closes and a sealing member that is attached to the stopper body and seals the upper opening in a water-tight manner. A bottom wall is provided, a first liquid injection hole in the vertical direction is provided in the bottom wall, an engagement hole is provided in the center of the bottom wall, the seal member is formed in a bottomed concave shape, and the bottom surface portion of the seal member A second liquid injection hole is provided, and an upward engaging projection is provided at the center of the bottom surface portion, and the sealing member is inserted into the plug body by inserting the engaging projection into the engagement hole in the circumferential direction. It is provided so that it can rotate.

請求項２の発明の飲料用容器の栓体は、請求項１において、前記シール部材の上向きの係合突起の上端縁部に前記栓体本体の係合穴よりも径大の抜け止め鍔部を設けたことを特徴とする。 A stopper for a beverage container according to a second aspect of the present invention is the stopper according to the first aspect, wherein the stopper member has a diameter larger than the engaging hole of the main body of the stopper at the upper edge of the upward engaging protrusion of the seal member. Is provided.

請求項３の発明の飲料用容器の栓体は、請求項１又は２において、前記栓体本体、前記シール部材の前記第一、第二の注液穴は、おのおのの底壁、底面部の周縁に放射状に複数個配置し、前記第一、第二の注液穴の内周径と外周径がそれぞれ略同一にすると共に、前記シール部材が前記栓体に対して回動した場合にも相対した前記第一、第二の注液穴同士が総て覆われることなく前記栓体本体の内外へ連通する前記注液穴が液の吐出と通気に必要な開口面積、位置関係を保持することを特徴とする。 The stopper of the beverage container according to the invention of claim 3 is the plug body according to claim 1 or 2, wherein the first and second liquid injection holes of the seal body and the seal member are respectively formed on the bottom wall and the bottom surface. Even when a plurality of radial holes are arranged on the periphery, the inner and outer diameters of the first and second liquid injection holes are substantially the same, and the seal member is rotated with respect to the plug body. The liquid injection hole communicating with the inside and outside of the plug body maintains the opening area and positional relationship necessary for liquid discharge and ventilation without covering the first and second liquid injection holes facing each other. It is characterized by that.

請求項４の発明の飲料用容器の栓体は、請求項３において、前記栓体本体の第一の注液穴の第一の周方向の長さが前記シール部材の第二の注液穴の第二の周方向の長さよりも大であり、かつ前記栓体本体の第一の注液穴の個数が前記シール部材の第二の注液穴の個数よりも少ないこと又は同数であることを特徴とする。 According to a fourth aspect of the present invention, there is provided a stopper for a beverage container according to the third aspect, wherein the first circumferential direction length of the first liquid injection hole of the plug body is the second liquid injection hole of the seal member. And the number of the first liquid injection holes of the plug body is less than or equal to the number of the second liquid injection holes of the seal member. It is characterized by.

請求項５の発明の飲料用容器の栓体は、請求項１〜４において、前記シール部材の上向きの係合突起の上面の中央部に、前記シール部材を前記栓体に着脱するための指当て部を設けたことを特徴とする。 According to a fifth aspect of the present invention, there is provided a plug for a beverage container according to any one of the first to fourth aspects, wherein a finger for attaching / detaching the seal member to / from the plug body is provided at the center of the upper surface of the upward engaging projection of the seal member. It is characterized by providing a contact part.

請求項６の発明の飲料用容器の栓体は、請求項１〜５において、前記シール部材は、前記上部開口の内面の内向き止水突起に当接する第一の止水部及び前記内向き止水突起より上方側の内側面を水密に保つ第二の止水部を有すると共に、前記栓体を締め付けた際に前記シール部材の内面下部と前記栓体の内部外面下部の間を水密に保つ第三の止水部及び、前記シール部材上端の上向き面と前記栓体の外面上部の段部下向き面の間を水密に保つ第四の止水部を有することを特徴とする。 According to a sixth aspect of the present invention, there is provided a plug for a beverage container according to the first to fifth aspects, wherein the seal member is in contact with an inward water stop projection on an inner surface of the upper opening and the inward direction. A second water stop portion that keeps the inner surface above the water stop protrusion watertight, and when the plug body is tightened, the space between the inner surface lower portion of the seal member and the inner outer surface lower portion of the plug body is watertight. A third water stop portion to be maintained, and a fourth water stop portion to keep watertight between the upward surface of the upper end of the seal member and the step downward surface of the upper portion of the outer surface of the stopper.

請求項７の発明の飲料用容器の栓体は、請求項１〜６において、前記シール部材は前記栓体の内部外面に対して平滑に設けられて、開栓時に前記第二の止水部で生ずるシール部材と前記上部開口の内側面の摩擦により栓本体に対して下方にずれることで前記第三の止水部、第四の止水部の水密状態が解除されて通気路が確保され、かつ前記上部開口から前記栓体を外した際に前記シール部材がその弾性によって元の装着状態に戻ることを特徴とする。 According to a seventh aspect of the present invention, there is provided a beverage container plug according to any one of the first to sixth aspects, wherein the sealing member is provided smoothly with respect to the inner and outer surfaces of the plug, and the second water stop portion is opened when the plug is opened. Due to the friction between the sealing member and the inner surface of the upper opening, the third water stop portion and the fourth water stop portion are released from the watertight state, and a ventilation path is secured. And when the said plug is removed from the said upper opening, the said sealing member returns to the original mounting state by the elasticity.

請求項１の発明によれば、係合突起を係合穴に挿入することによりシール部材の取り付け状態を視認でき、付け忘れや紛失の防止を図ることができる。 According to the invention of claim 1, by inserting the engaging protrusion into the engaging hole, the attached state of the seal member can be visually confirmed, and it is possible to prevent forgetting or losing.

請求項２の発明によれば、抜け止め鍔部によってシール部材を確実に装着することができる。 According to the second aspect of the present invention, the seal member can be reliably attached by the retaining collar portion.

請求項３の発明によれば、液の吐出状態と通気状態を良好に確保することができる。 According to the invention of claim 3, it is possible to satisfactorily ensure the liquid discharge state and the aeration state.

請求項４の発明によれば、液の吐出状態と通気状態を良好にいっそう確保することができる。 According to the invention of claim 4, the liquid discharge state and the ventilation state can be further ensured.

請求項５の発明によれば、指当て部によってシール部材の着脱操作性を向上することができる。 According to the invention of claim 5, the detachability of the seal member can be improved by the finger contact portion.

請求項６の発明によれば、第二の液通孔から第一の液通孔を通らないで栓体の外部に漏れようとする液の止水を行うことができる。 According to the sixth aspect of the present invention, it is possible to stop the liquid from leaking outside the plug body without passing through the first liquid passage hole from the second liquid passage hole.

請求項７の発明によれば、容器本体の内部減圧状態での開栓時におけるシール部材の脱落防止を図ることができる。 According to the seventh aspect of the present invention, it is possible to prevent the seal member from falling off when the container body is opened with the internal pressure reduced.

本発明の実施例１を示す閉栓時の断面図であるIt is sectional drawing at the time of closure which shows Example 1 of this invention. 同開栓途中時の断面図である。It is sectional drawing in the middle of the opening. 同栓体の底面図である。It is a bottom view of the plug body. 同栓体の分解斜視図である。It is a disassembled perspective view of the plug body. 本発明の実施例２を示す分解斜視図である。It is a disassembled perspective view which shows Example 2 of this invention.

本発明における好適な実施の形態について、添付図面を参照して説明する。尚、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。 Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

図１〜４は実施例１を示しており、水、コーヒ、お茶或いは清涼飲料を収容する飲料用容器は、容器本体１の上部に円筒状に設けられている上部開口２に栓体３を被着すると共に、この栓体３には蓋体４が開閉自在に設けられている。容器本体１は、有底筒状の外筒５の内側に有底筒状の内筒６を配置すると共に、相互の上端を接合して上部開口２を形成しており、外筒５と内筒６との間には真空空間７が設けられる。そして上部開口２に連設する首部となっている外筒５の外周に第一の雄ネジ８が容器本体１の中心軸線９を中心として形成されている。また、上部開口２の内面の下部に内向き止水突起となる第一の段部10及びその上部に第二の段部11が設けられており、これら第一の段部10、第二の段部11はいずれも下方が上方よりも径小となるように中心軸線９を中心とした円環状に設けられている。 1-4 shows Example 1, and the container for drinks which accommodates water, coffee, tea, or a soft drink has the stopper 3 in the upper opening 2 provided in the upper part of the container main body 1 at the cylindrical shape. The stopper 3 is provided with a lid 4 that can be opened and closed. The container main body 1 has a bottomed cylindrical inner cylinder 6 disposed inside a bottomed cylindrical outer cylinder 5 and has an upper opening 2 formed by joining the upper ends of the inner cylinder 6 and the inner cylinder 5. A vacuum space 7 is provided between the cylinder 6. A first male screw 8 is formed around the central axis 9 of the container main body 1 on the outer periphery of the outer cylinder 5 which is a neck portion connected to the upper opening 2. In addition, a first step portion 10 serving as an inward water blocking projection and a second step portion 11 are provided on the lower portion of the inner surface of the upper opening 2. Each of the step portions 11 is provided in an annular shape with the central axis 9 as the center so that the lower portion is smaller in diameter than the upper portion.

前記栓体３の栓体本体12は、合成樹脂製であって、中心軸線９と同軸状のほぼ円筒形状であって、上部開口２上に被着され上端が口部13Ａとなって飲み口または注ぎ口となる上部円筒部13と、この上部円筒部13の下方の外側に連設され外筒５の首部の外側に配置される下部外側円筒部14と、上部円筒部13の下方の内側に連設され上部開口２の内側に配置されて栓体３の内側を形成する下部内側円筒部15と、この下部内側円筒部15の下部に、容器本体１の内部から上部円筒部13に至る飲料の流路16を遮断するように中心軸線９を中心とした平面が円形の底壁17を設ける。そして、下部内側円筒部15の外面に止水のためのシリコンなどのゴム状弾性材からなるシール部材18が装着している。 The plug body 12 of the plug 3 is made of a synthetic resin and has a substantially cylindrical shape coaxial with the central axis 9. The plug body 12 is deposited on the upper opening 2 and has a mouth 13 </ b> A at the upper end. Alternatively, the upper cylindrical portion 13 that serves as a spout, the lower outer cylindrical portion 14 that is connected to the outer side below the upper cylindrical portion 13 and that is disposed outside the neck of the outer cylinder 5, and the inner side below the upper cylindrical portion 13 The lower inner cylindrical part 15 which is arranged inside the upper opening 2 and forms the inner side of the plug body 3, and the lower inner cylindrical part 15, from the inside of the container body 1 to the upper cylindrical part 13. A bottom wall 17 having a circular plane around the central axis 9 is provided so as to block the beverage flow path 16. A seal member 18 made of a rubber-like elastic material such as silicon for water stopping is attached to the outer surface of the lower inner cylindrical portion 15.

下部外側円筒部14の内面には第一の雄ネジ８に螺着する第一の雌ネジ19が形成されている。また、下部内側円筒部15の内面には第二の雌ネジ20が中心軸線９を中心として形成されており、この第二の雌ネジ20に蓋体４に設けた第二の雄ネジ21が螺着できるようになっている。尚、第二の雌ネジ20、第二の雄ネジ21は二条ネジであって、第二の雌ネジ20は後述するように吐出した液体の障壁を兼用する。更に、下部内側円筒部15の外面の上下方向のほぼ中間に第三の段部22が設けられ、この第三の段部22は下部内側円筒部15の上方よりも段部下向き面23を介して下方が径小に形成されている。 A first female screw 19 that is screwed onto the first male screw 8 is formed on the inner surface of the lower outer cylindrical portion 14. A second female screw 20 is formed around the central axis 9 on the inner surface of the lower inner cylindrical portion 15, and a second male screw 21 provided on the lid 4 is provided on the second female screw 20. It can be screwed. The second female screw 20 and the second male screw 21 are double-threaded screws, and the second female screw 20 also serves as a barrier for the discharged liquid as will be described later. Further, a third step portion 22 is provided approximately in the middle of the outer surface of the lower inner cylindrical portion 15 in the vertical direction, and the third step portion 22 is interposed via a step portion downward surface 23 from above the lower inner cylindrical portion 15. The lower part is formed with a small diameter.

さらに、底壁17の外周縁に沿って上下方向を貫通すると共に平面が円弧状の第一の注液穴24を複数円環状に配置することで、隣接する第一の注液穴24間には底壁17の周縁と第一の中底壁部25とを結ぶ第一の連絡橋部26が形成される。この第一の連絡橋部26は中心軸線９を中心とした放射方向に配置されている。実施例では第一の注液穴24は、等間隔に４箇所に設けられており、この結果第一の連絡橋部26も中心軸線９を中心として等間隔に４箇所に配置されており、また４箇所の注液穴24の上方に、螺旋方向に断続的に設けられる同数、実施例では４箇所の第二の雌ネジ20が正対向するように配置されている。 Further, by arranging a plurality of first liquid injection holes 24 penetrating in the vertical direction along the outer peripheral edge of the bottom wall 17 and having a circular arc shape in the plane, the first liquid injection holes 24 adjacent to each other are arranged. A first connecting bridge portion 26 is formed connecting the peripheral edge of the bottom wall 17 and the first middle bottom wall portion 25. The first connecting bridge portion 26 is disposed in a radial direction around the central axis 9. In the embodiment, the first liquid injection holes 24 are provided at four positions at equal intervals, and as a result, the first connecting bridge portions 26 are also arranged at four positions at equal intervals around the central axis 9. Further, above the four liquid injection holes 24, the same number of second female screws 20 provided intermittently in the spiral direction, in the embodiment, are arranged so as to face each other.

前記シール部材18は、中心軸線９を中心とした有底短円筒形であって、下部内側円筒部15の外面に嵌着する短円筒状の周面部27と、この周面部27の下部に連設して下方を塞ぎ底壁17の下面に添着するように底壁17の下面を覆う底面部28とを有する。 The seal member 18 has a short cylindrical shape with a bottom centered on the central axis 9, and has a short cylindrical peripheral surface portion 27 fitted to the outer surface of the lower inner cylindrical portion 15, and a lower portion of the peripheral surface portion 27. And a bottom surface portion 28 that covers the lower surface of the bottom wall 17 so as to close the bottom and attach to the lower surface of the bottom wall 17.

前記シール部材18の周面部27の外面は上部開口２側にある第一の段部10と第二の段部11との間に隙間29を介して対向しており、周面部27の外面の下部に第一の段部10に当接する第一の止水部30を一体に設ける。この第一の止水部30はその縦断面が先細な三角形或いは矩形の小突起状であって中心軸線９を中心として円環状に配置されており、第一の止水部30の先端が第一の段部10に当接できるようになっている。また、シール部材18の周面部27の外面の上部に第二の段部11の真上と真下に当接する上下一対の第二の止水部31を一体に設ける。この第二の止水部31はその縦断面が矩形或いは先細な三角形の小突起状であって中心軸線９を中心として円環状に配置されており、第二の止水部31の先端が第二の段部11の真上と真下にそれぞれ当接できるようになっている。 The outer surface of the peripheral surface portion 27 of the seal member 18 is opposed to the first step portion 10 and the second step portion 11 on the upper opening 2 side with a gap 29 therebetween. A first water stop portion 30 that contacts the first step portion 10 is integrally provided at the lower portion. The first water stop 30 is a small protrusion having a tapered longitudinal or rectangular shape and is arranged in an annular shape around the central axis 9, and the tip of the first water stop 30 is the first. It can come into contact with one step portion 10. In addition, a pair of upper and lower second water stop portions 31 that are in contact with the upper portion and the lower portion of the second step portion 11 are integrally provided on the outer surface of the peripheral surface portion 27 of the seal member 18. The second water stop 31 is a small protrusion having a rectangular or tapered triangle in longitudinal section, and is arranged in an annular shape around the central axis 9. The tip of the second water stop 31 is the first. It can come into contact with the upper and lower portions of the second step portion 11 respectively.

また、外面に溝などがなく平坦面となっている下部内側円筒部15が底壁17の周縁より立設していることにより、下部内側円筒部15の外周面と底壁17の下面との接続部には円の略１／４円弧状の第一の角部32が形成されている。そして、シール部材18の周面部27の内面と底面部28の上面との接続箇所によって第二の角部33が形成されることにより、この第二の角部33の内面、上面によって第一の角部32の外面に当接して密着することで止水できる第三の止水部34が形成されている。 Further, since the lower inner cylindrical portion 15 having a flat surface without a groove on the outer surface is erected from the periphery of the bottom wall 17, the outer peripheral surface of the lower inner cylindrical portion 15 and the lower surface of the bottom wall 17 are A first corner 32 having a substantially circular arc shape of a circle is formed in the connection portion. Then, the second corner portion 33 is formed by the connection portion between the inner surface of the peripheral surface portion 27 of the seal member 18 and the upper surface of the bottom surface portion 28, whereby the first inner surface and the upper surface of the second corner portion 33 A third water stop portion 34 is formed that can stop water by contacting and closely contacting the outer surface of the corner portion 32.

さらに、周面部27の上端に水平な上向き面により第四の止水部35が形成されており、この第四の止水部35が段部下向き面23に当接して止水するようになっている。 Further, a fourth water-stop portion 35 is formed at the upper end of the peripheral surface portion 27 by a horizontal upward surface, and the fourth water-stop portion 35 comes into contact with the step-down surface 23 to stop the water. ing.

底面部28には、その外周縁に沿って上下方向を貫通すると共に平面が円弧状の第二の注液穴36を複数円環状に配置することで、隣接する第二の注液穴36間には底面部28の周縁と中心軸線９上の第二の中底面部37とを結ぶ第二の連絡橋部38が形成される。この第二の連絡橋部38は中心軸線９を中心とした放射方向に配置されている。尚、第一の注液穴24と第二の注液穴36における中心軸線９を中心とした外縁、内縁の半径はほぼ同じに形成されている。 The bottom surface portion 28 has a plurality of second liquid injection holes 36 penetrating in the vertical direction along the outer peripheral edge and having a circular arc shape on the flat surface, thereby arranging the second liquid injection holes 36 between adjacent ones. A second connecting bridge portion 38 that connects the peripheral edge of the bottom surface portion 28 and the second middle bottom surface portion 37 on the central axis 9 is formed. The second connecting bridge portion 38 is arranged in a radial direction with the central axis 9 as the center. Note that the radii of the outer edge and the inner edge around the central axis 9 in the first liquid injection hole 24 and the second liquid injection hole 36 are formed substantially the same.

さらに、中心軸線９を中心として第一の中底壁部25、第二の中底面部37はほぼ同じ外径を有するものであって、第二の中底面部37の上面中央に縦断面がＴ字型となる係合突起39を上向きに突設する。すなわち、この係合突起39は上端に指当て可能なほぼ水平な平坦をなした上部指当て部40が設けられると共に、この上部指当て部40の外周に、第二の中底面部37よりもやや小径な抜け止め鍔部41を有する円柱状突起本体42を中心軸線９上に立設したものである。尚、上部指当て部40はやや上方に突設したり、やや下方に凹設してもよい。また、円柱状突起本体42の下面には上向きにやや凹設した下部指当て部43が設けられている。 Further, the first middle bottom wall portion 25 and the second middle bottom surface portion 37 have substantially the same outer diameter with the central axis 9 as the center, and a longitudinal section is formed at the center of the upper surface of the second middle bottom surface portion 37. An engagement protrusion 39 having a T-shape is protruded upward. That is, the engaging protrusion 39 is provided with a substantially horizontal flat upper finger rest portion 40 that can be finger-fitted to the upper end, and on the outer periphery of the upper finger rest portion 40 than the second middle bottom surface portion 37. A cylindrical projection body 42 having a slightly small diameter retaining collar 41 is erected on the central axis 9. Note that the upper finger rest 40 may protrude slightly upward or may be slightly recessed downward. In addition, a lower finger rest 43 that is slightly recessed upward is provided on the lower surface of the cylindrical protrusion main body 42.

そして、第一の中底壁部25の中心軸線９上に形成され突起本体42とほぼ同径な平面円形な係合穴44に、突起本体42を下方から無理に挿入することで、係合穴44に突起本体42が係合し、抜け止め鍔部41が第一の中底壁部25の上面に係止すると共に第二の中底面部37が第一の中底壁部25の下面に係止することで、シール部材18が栓体３に周方向で回転可能に装着されるようになっている。 Then, the projection body 42 is forcibly inserted from below into a flat circular engagement hole 44 formed on the central axis 9 of the first midsole wall portion 25 and having substantially the same diameter as the projection body 42. The protrusion main body 42 engages with the hole 44, the retaining collar 41 is locked to the upper surface of the first midsole wall 25, and the second midbottom 37 is the lower surface of the first midsole wall 25. The seal member 18 is attached to the plug body 3 so as to be rotatable in the circumferential direction.

さらに、中心軸線９を中心として第一の注液穴24、第二の注液穴36の内周径と外周径がそれぞれ略同一にすると共に、シール部材18が栓体３に対して回動した場合にも相対した第一の注液穴24、第二の注液穴36同士が総て覆われることなく栓体３内外へ連通する流路16が液の吐出と通気に必要な開口面積、位置関係を保持する構造となっている。このため、栓体３の第一の注液穴24の第一の周方向の長さＡが前記シール部材18の第二の注液穴36の第二の周方向の長さＢよりも大であり、かつ前記栓体３の第一の注液穴24の個数が前記シール部材18の第二の注液穴36の個数よりも少ないこと又は同数になっており、実施例では第一の周方向の長さＡが、第二の周方向の長さＢに第二の連絡橋部38の第三の周方向の長さＣを加えたものより長く形成されている。尚、第二の雌ネジ20の第四の周方向の長さＤは第一の周方向の長さＡより短く、第二の周方向の長さＢより長く形成されている。 Further, the inner peripheral diameter and the outer peripheral diameter of the first liquid injection hole 24 and the second liquid injection hole 36 are substantially the same with the center axis 9 as the center, and the seal member 18 is rotated with respect to the plug body 3. In this case, the first injection hole 24 and the second injection hole 36 which face each other are not covered with each other, and the flow path 16 communicating with the inside and outside of the plug body 3 has an opening area necessary for discharging and venting the liquid. In this structure, the positional relationship is maintained. Therefore, the first circumferential length A of the first liquid injection hole 24 of the plug body 3 is larger than the second circumferential length B of the second liquid injection hole 36 of the seal member 18. And the number of the first liquid injection holes 24 of the plug body 3 is less than or equal to the number of the second liquid injection holes 36 of the seal member 18, The circumferential length A is formed longer than the second circumferential length B plus the third circumferential length C of the second connecting bridge portion 38. The length D in the fourth circumferential direction of the second female screw 20 is shorter than the length A in the first circumferential direction and longer than the length B in the second circumferential direction.

前記蓋体４は、合成樹脂製であって、その下面中央に小径で有底な蓋円筒部45が下向きに突設しており、この蓋円筒部45に断熱材46が充填されていると共に、蓋円筒部45の上部にリング状シール部材47が設けられ、このリング状シール部材47は閉蓋時に上部円筒部13の内面に当接するようになっている。また、蓋円筒部45の外面に前記第二の雄ネジ21が設けられている。 The lid body 4 is made of synthetic resin, and has a small-diameter bottomed lid cylindrical portion 45 projecting downward at the center of the bottom surface, and the lid cylindrical portion 45 is filled with a heat insulating material 46. A ring-shaped seal member 47 is provided on the upper portion of the lid cylindrical portion 45, and this ring-shaped seal member 47 comes into contact with the inner surface of the upper cylindrical portion 13 when the lid is closed. Further, the second male screw 21 is provided on the outer surface of the lid cylindrical portion 45.

次に前記構成について説明する。上部開口２から例えばお茶などの飲料液を容器本体１に収容した後に、第一の雌ネジ19を第一の雄ネジ８に螺着することで、容器本体１に栓体３を装着する。このため、第一〜四の止水部30,31,34,35は、それぞれ第一の段部10、第二の段部11、第一の角部32の外面、段部下向き面23に当接することで止水がなされる。さらに、第二の雌ネジ20に第二の雄ネジ21を螺着することで、栓体３に蓋体４を装着する。このためリング状シール部材47は閉蓋時に上部円筒部13の内周面に当接して液流路16が遮断されて、容器本体１に収容されているお茶の液は液密に保温される。 Next, the configuration will be described. After the beverage liquid such as tea is accommodated in the container main body 1 from the upper opening 2, the plug body 3 is attached to the container main body 1 by screwing the first female screw 19 to the first male screw 8. For this reason, the first to fourth water stop portions 30, 31, 34, and 35 are respectively formed on the outer surface of the first step portion 10, the second step portion 11, the first corner portion 32, and the step portion downward surface 23. The water is stopped by the contact. Further, the lid 4 is attached to the plug 3 by screwing the second male screw 21 to the second female screw 20. For this reason, the ring-shaped seal member 47 abuts against the inner peripheral surface of the upper cylindrical portion 13 when the lid is closed, the liquid flow path 16 is blocked, and the tea liquid stored in the container body 1 is kept warm. .

飲料を飲むときには、蓋体４を回して第二の雌ネジ20より第二の雄ネジ21を脱して蓋体４を栓体３より上方へ外す。そして、栓体３を下向きになるように容器本体１を傾けることにより、収容されている飲料液は第二の注液穴36、第二の注液穴36と連通する第一の注液穴24の部位を通って上部円筒部13側に吐出され、口部13Ａに唇（図示せず）を着けて飲用する。この際、第一の注液穴24より吐出された飲料液は第一の注液穴24と正対する第二の雌ネジ20が障壁となって二股状に別れ、そして第二の雌ネジ20の周方向の両端、すなわち断続的に複数設けられる第二の雌ネジ20相互間を通って飲み口側となる上部円筒部13側に吐出される。 When drinking a beverage, the lid 4 is turned to remove the second male screw 21 from the second female screw 20 and remove the lid 4 upward from the plug 3. Then, by tilting the container body 1 so that the stopper 3 faces downward, the stored beverage liquid communicates with the second liquid injection hole 36 and the second liquid injection hole 36. It is discharged to the upper cylindrical part 13 side through 24 parts, and it is drunk by putting lips (not shown) on the mouth part 13A. At this time, the beverage discharged from the first liquid injection hole 24 is divided into two forks with the second female screw 20 facing the first liquid injection hole 24 as a barrier, and the second female screw 20 Are discharged to the upper cylindrical portion 13 side serving as a drinking mouth through both ends in the circumferential direction, that is, between the plurality of second female screws 20 provided intermittently.

尚、容器本体１を傾けて収容されていた液を吐出する際、第二の注液穴36を通った液の一部が底壁17の下面と底面部28の上面との間に浸入したとしても、第三の止水部32で止水を行うことができ、さらに液が万一第三の止水部32を通ったとしても、液を第四の止水部35で止水することができ、液が栓体本体12とシール部材18との間から漏れるようなことはなくなる。 In addition, when discharging the liquid stored while tilting the container body 1, part of the liquid that passed through the second liquid injection hole 36 entered between the lower surface of the bottom wall 17 and the upper surface of the bottom surface portion 28. Even in such a case, water can be stopped at the third water stop 32, and even if the liquid passes through the third water stop 32, the liquid is stopped at the fourth water stop 35. This prevents the liquid from leaking between the plug body 12 and the seal member 18.

このようにして飲料用容器として使用されている途中で、栓体３を水洗する場合には、栓体３を容器本体１に対して回すことで、第二の雌ネジ20と第二の雄ネジ21との螺着をやや緩める。この際、例えば容器本体１の内部が減圧状態の場合などでは、シール部材18の周面部27は下部内側円筒部15の外面に対して滑り、第一の角部32に対して第二の角部33、ひいては第三の止水部34が下降して両者間に僅かな第一の隙間Ｅが形成されると共に、段部下向き面23に対して第四の止水部35が下降して両者間に僅かな第二の隙間Ｆが形成される。これは合成樹脂製の下部内側円筒部15と、合成樹脂であるシリコン製のシール部材18との平滑な面接触による抜き出し摩擦力より、底面部28が下方に吸引される吸引力が勝ることで、第一の隙間Ｅ、第二の隙間Ｆを形成するものである。そして、このように第一の隙間Ｅ、第二の隙間Ｆを形成することで、これらの第一の隙間Ｅ、第二の隙間Ｆを介して外気が下部内側円筒部15と周面部27との僅かな通気路用隙間(図示せず)、底壁17と底面部28との僅かな通気路用隙間(図示せず)を通って減圧状態にある内筒６内に導入されることで、栓体３を弱い力で上部開口２より取り外すことができる。この際、シール部材18における周面部27、底面部28は自由度が向上した状態で弾性変形し、この結果周面部27、底面部28に大きな歪が生じようとしても、これを阻止でき、このため上部開口２より下部内側円筒部15を抜き出す際に栓体３のシール部材18に亀裂や栓体本体12からの分離・脱落が生じない。尚、容器本体１の内部が減圧状態ではなく、栓体３の取り付け、取り外し時にシール部材18に過大な力が加わったような状態でも、第一の隙間Ｅ、第二の隙間Ｆが形成されるようにすることでシール部材18の変形自由度を向上して破損を防ぐことができる。 When the stopper 3 is washed with water while being used as a beverage container in this way, the second female screw 20 and the second male screw 20 are rotated by turning the stopper 3 relative to the container body 1. Slightly loosen the screw 21. At this time, for example, when the inside of the container main body 1 is in a reduced pressure state, the peripheral surface portion 27 of the seal member 18 slides with respect to the outer surface of the lower inner cylindrical portion 15, and the second corner with respect to the first corner portion 32. The portion 33 and thus the third water stop 34 are lowered to form a slight first gap E therebetween, and the fourth water stop 35 is lowered relative to the stepped downward surface 23. A slight second gap F is formed between them. This is because the suction force by which the bottom surface portion 28 is sucked downward is superior to the extraction frictional force caused by the smooth surface contact between the synthetic resin lower inner cylindrical portion 15 and the synthetic resin silicon seal member 18. The first gap E and the second gap F are formed. And, by forming the first gap E and the second gap F in this way, the outside air passes through the first gap E and the second gap F, and the lower inner cylindrical portion 15 and the peripheral surface portion 27 Are introduced into the inner cylinder 6 in a decompressed state through a slight air gap (not shown) and a slight air gap (not shown) between the bottom wall 17 and the bottom surface portion 28. The plug 3 can be removed from the upper opening 2 with a weak force. At this time, the peripheral surface portion 27 and the bottom surface portion 28 of the seal member 18 are elastically deformed in a state where the degree of freedom is improved, and as a result, even if large distortion is generated in the peripheral surface portion 27 and the bottom surface portion 28, this can be prevented. Therefore, when the lower inner cylindrical portion 15 is extracted from the upper opening 2, the sealing member 18 of the plug body 3 is not cracked or separated from the plug body 12. Note that the first gap E and the second gap F are formed even when the inside of the container body 1 is not in a reduced pressure state and an excessive force is applied to the seal member 18 when the stopper 3 is attached or detached. By doing so, the degree of freedom of deformation of the seal member 18 can be improved and damage can be prevented.

そして、栓体３を容器本体より外すとシール部材18の弾性復元力により底面部28は底壁17に密着するようになっている。 When the stopper 3 is removed from the container body, the bottom surface portion 28 comes into close contact with the bottom wall 17 by the elastic restoring force of the seal member 18.

さらに、シール部材18を底壁17より外すときは、上部指当て部40に指（図示せず）を多少無理に押圧することで、鍔部41、ひいては係合突起39が弾性変形して係合穴44を下方に抜け出ることで、シール部材18を取り出すことができる。 Further, when the sealing member 18 is removed from the bottom wall 17, by pressing the finger (not shown) to the upper finger rest part 40 slightly, the collar part 41 and the engaging protrusion 39 are elastically deformed and engaged. The seal member 18 can be taken out by pulling out the joint hole 44 downward.

一方、洗浄後に組み立てるときは、下部指当て部43に指(図示せず）を当てて、シール部材18の係合突起39を係合穴44にやや無理に挿入することで鍔部41を底壁17の上面に係止せしめて抜け止めする。この際、第三の止水部34、第四の止水部35はそれぞれ第一の角部32、段部下向き面23に隙間なく密着している。そして、シール部材18を上部開口２に押し込むようにして第一の雄ネジ8に第一の雌ネジ19を螺着することで、栓体３を上部開口２に装着することができる。 On the other hand, when assembling after washing, put a finger (not shown) on the lower finger rest 43 and forcefully insert the engaging protrusion 39 of the seal member 18 into the engaging hole 44 to lower the flange 41. It is locked to the upper surface of the wall 17 to prevent it from coming off. At this time, the third water stop portion 34 and the fourth water stop portion 35 are in close contact with the first corner portion 32 and the stepped portion downward surface 23 without any gap. The plug body 3 can be attached to the upper opening 2 by screwing the first female screw 19 into the first male screw 8 so as to push the seal member 18 into the upper opening 2.

以上のように、前記実施例においては、飲料用の容器本体１における平面が円形で上下方向に円筒状の上部開口２に被着され上部に上部円筒部13と平面円形の口部13Ａを有する栓体本体12と、栓体本体12に被着され口部13Ａを開閉する蓋体４と、栓体本体12に装着され容器本体１の上部開口２に挿入してその内側を水密に塞ぐゴム状の弾性を有するシール部材18を備え、栓体本体12はその内部に口部13Ａに連通する上下方向の流路16を筒部を形成する上部円筒部13、下部内側円筒部15を介して設けると共に、下部に底壁17を設け、底壁17には上下方向の第一の注液穴24を設けると共に底壁17の中央に係合穴44を上下方向に設け、シール部材18は下部内側円筒部15の外面に添着される周面部27と周面部27の下部に連設されて底壁17の下面に添着される底面部28を有する有底凹状に形成され、シール部材18の底面部28に上下方向の第二の注液穴36を設けると共に、底面部28の平面の中央に上向きの係合突起39を設け、底壁17の平面の中央に設けた上下方向の係合穴44に係合突起39を栓体３の周方向で回転可能に挿入することにより、栓体３の中央部でシール部材18の着脱操作を行うことができる。また、栓体３を閉めた状態でシール部材18の有無を係合穴44に挿入した係合突起39を視認して簡単に確認することができる。そして、従来技術のように栓体本体12の周壁の外面にシール部材装着用の溝がなく、下部内側円筒部15の外面は平坦となるため、洗浄性の高い栓体３となる。 As mentioned above, in the said Example, the plane in the container main body 1 for drinks is circular, and is attached to the cylindrical upper opening 2 in the up-down direction, and has the upper cylindrical part 13 and the planar circular mouth part 13A in the upper part. A plug body 12, a lid 4 that is attached to the plug body 12 and opens and closes the opening 13 A, and a rubber that is attached to the plug body 12 and is inserted into the upper opening 2 of the container body 1 to tightly seal the inside thereof. The plug body 12 is provided with an upper flow passage 16 communicating with the mouth portion 13A through the upper cylindrical portion 13 and the lower inner cylindrical portion 15 that form a cylindrical portion. The bottom wall 17 is provided at the bottom, the first liquid injection hole 24 in the vertical direction is provided in the bottom wall 17, and the engagement hole 44 is provided in the vertical direction in the center of the bottom wall 17, and the seal member 18 is provided at the bottom. A peripheral surface portion 27 attached to the outer surface of the inner cylindrical portion 15 and a bottom surface portion 28 connected to the lower surface of the bottom wall 17 connected to the lower portion of the peripheral surface portion 27. The bottom wall portion 28 of the seal member 18 is provided with a second liquid injection hole 36 in the vertical direction, and an upward engagement protrusion 39 is provided at the center of the plane of the bottom surface portion 28 to form the bottom wall 17. By inserting the engagement protrusion 39 into the engagement hole 44 in the vertical direction provided in the center of the flat surface of the plug body 3 so as to be rotatable in the circumferential direction of the plug body 3, the sealing member 18 is attached and detached at the center portion of the plug body 3. be able to. Further, the presence or absence of the seal member 18 can be easily confirmed by visually recognizing the engagement protrusion 39 inserted into the engagement hole 44 with the plug 3 closed. And since there is no groove for attaching a seal member on the outer surface of the peripheral wall of the plug body 12 as in the prior art, and the outer surface of the lower inner cylindrical portion 15 is flat, the plug body 3 is highly cleanable.

また、シール部材18の上向きの係合突起39の上端縁部に底壁17の上面に係止可能で栓体３の係合穴44よりも径大の抜け止め鍔部41を設けたことにより、従来のように周方向の溝にシール部材を嵌合する必要がなくなり、係合突起39の上下にある上部指当て部40、下部指当て部43を指で押圧することで着脱が簡便になる。 Further, by providing an upper end edge portion of the upward engagement protrusion 39 of the seal member 18 with a retaining collar portion 41 that can be engaged with the upper surface of the bottom wall 17 and that is larger in diameter than the engagement hole 44 of the plug body 3. This eliminates the need to fit a seal member into the circumferential groove as in the prior art, and can be easily attached and detached by pressing the upper and lower finger rests 40 and 43 above and below the engaging protrusions 39 with a finger. Become.

さらに、栓体本体12、シール部材18の第一の注液穴24、第二の注液穴36はおのおの底壁17、底面部28の周縁側に放射状に複数個配置し、第一の注液穴24、第二の注液穴36の内周径と外周径がそれぞれ略同一にすると共に、シール部材18が栓体本体12に対して回動した場合にも相対した第一の注液穴24、第二の注液穴36同士が総て覆われることなく栓体本体12の内外へ連通する通路が液の吐出と通気に必要な開口面積、位置関係を保持することができる。 Further, the plug body 12, the first liquid injection hole 24 and the second liquid injection hole 36 of the seal member 18 are arranged radially on the peripheral side of the bottom wall 17 and the bottom surface portion 28, respectively. The inner and outer diameters of the liquid hole 24 and the second liquid injection hole 36 are substantially the same, and the first liquid injection is also opposed when the seal member 18 is rotated with respect to the plug body 12. The passages communicating with the inside and outside of the plug body 12 without the holes 24 and the second liquid injection holes 36 being completely covered with each other can maintain the opening area and positional relationship necessary for liquid discharge and ventilation.

また、栓体本体12の第一の注液穴24の第一の周方向の長さＡが第二の注液穴36の第二の周方向の長さＢよりも大であり、かつ栓体本体12の第一の注液穴24の個数が第二の注液穴36の個数よりも少ないこと又は同数であることで、シール部材18の放射状の第二の注液穴36の弧長を栓体３に設けた放射状の第一の注液穴24の弧長より短くすることで、シール部材18中央部の剛性が高くなり、着脱耐久性が向上できる。そして栓体３の第一の注液穴24の数よりもシール部材18の第二の注液穴36の数を多く設けることで、常に安定した吐出量、及び吐出状態・通気状態を得られる。 Further, the first circumferential length A of the first liquid injection hole 24 of the plug body 12 is larger than the second circumferential length B of the second liquid injection hole 36, and the plug The number of the first liquid injection holes 24 of the body body 12 is less than or equal to the number of the second liquid injection holes 36, so that the arc length of the radial second liquid injection holes 36 of the seal member 18 is increased. Is made shorter than the arc length of the radial first liquid injection hole 24 provided in the plug body 3, the rigidity of the central portion of the seal member 18 is increased, and the attachment / detachment durability can be improved. By providing a larger number of the second liquid injection holes 36 of the sealing member 18 than the number of the first liquid injection holes 24 of the plug 3, it is possible to always obtain a stable discharge amount, a discharge state, and a ventilation state. .

さらに、シール部材18の上向きの係合突起39の上面の中央部に、シール部材18を栓体３に脱するため第一の上部指当て部40を設け、他方、係合突起39の下面の中央部に、シール部材18を栓体３に挿着するため第二の上部指当て部43を設けたことで、シール部材18は指で上方から或いは下方から押圧するだけで簡単にシール部材を外したり、着けたりすることができる。 Further, a first upper finger rest 40 is provided at the center of the upper surface of the upward engaging projection 39 of the seal member 18 to remove the seal member 18 from the plug body 3. By providing a second upper finger rest 43 for inserting the seal member 18 into the plug body 3 at the center, the seal member 18 can be easily attached by simply pressing it from above or below with a finger. Can be removed and worn.

また、シール部材18は、周面部27の外面に設けられる平面が円環状の第一の止水部30、第二の止水部31のほかに、下部内側円筒部15の第一の角部32に水密状態に当接する平面が円環状の第三の止水部32、さらに周面部27の外面に下方が径小となるように形成した段部下向き面23に水密状態に当接する上向きで平面が円環状の第四の止水部35を設けることで、容器本体１を傾けて収容されていた液を吐出する際、第二の注液穴36を通った液の一部が底壁17の下面と底面部28の上面との間に浸入したとしても、第三の止水部32で止水を行うことができ、さらに液が万一第三の止水部32を通ったとしても、液を第四の止水部35で止水することができ、液が栓体本体12とシール部材18との間から漏れるようなことはなく、より確実な止水が可能となる。 Further, the seal member 18 is provided with the first corner portion of the lower inner cylindrical portion 15 in addition to the first water stop portion 30 and the second water stop portion 31 having an annular plane provided on the outer surface of the peripheral surface portion 27. The flat surface abutting on the watertight state 32 is an annular third water stop 32, and the stepped downward surface 23 formed on the outer surface of the peripheral surface portion 27 so that the diameter of the lower part is small is upward facing the watertight state. By providing the fourth water stop 35 having an annular plane, when the liquid stored in the container body 1 is inclined, a part of the liquid passing through the second liquid injection hole 36 is bottom wall. Even if it has entered between the lower surface of 17 and the upper surface of the bottom surface portion 28, it is possible to stop the water at the third water stop portion 32, and that the liquid should have passed through the third water stop portion 32. However, the liquid can be stopped by the fourth water stop portion 35, and the liquid does not leak from between the plug body 12 and the seal member 18, and a more reliable water stop is possible.

さらに、下部内側円筒部15の外面と周面部27の外面とは平坦状に当接しており、栓体３を上部開口２から上方への引き上げる開栓時において、下部内側円筒部15の外面とシール部材18の内面間には、両者間の垂直方向変位を拘束する周方向突起又は溝がなく、開栓時に容器本体１の内部が減圧状態にあったり、或いは第一の止水部30又は及び第二の止水部31で生ずるシール部材18と上部開口２の内面との摩擦により、シール部材18が栓体本体12に対して下方にずれることで第三の止水部34、第四の止水部35の水密状態が解除されて通気路が確保され、かつ容器本体１から前記栓体３を外した際にシール部材18がその弾性によって元の装着状態に復元することにより、栓体３を容器本体１への着脱時に、シール部材18と栓体本体12が一体で回転しないため、上部開口２の内面と第三の止水部34、第四の止水部35間の摺動摩擦が低減し、突起状の第三の止水部34、第四の止水部35の捩れや破断による漏れを防ぐことができる。 Further, the outer surface of the lower inner cylindrical portion 15 and the outer surface of the peripheral surface portion 27 are in contact with each other in a flat shape, and the outer surface of the lower inner cylindrical portion 15 is open when the plug body 3 is pulled upward from the upper opening 2. There is no circumferential projection or groove between the inner surfaces of the seal member 18 to restrain the vertical displacement between them, and the inside of the container body 1 is in a reduced pressure state when the cap is opened, or the first water stop 30 or Further, the friction between the seal member 18 generated in the second water stop portion 31 and the inner surface of the upper opening 2 causes the seal member 18 to shift downward with respect to the plug body 12, whereby the third water stop portion 34, the fourth water stop portion 34, and the fourth water stop portion 34. The watertight state of the water stop portion 35 is released to secure the air passage, and when the plug body 3 is removed from the container body 1, the seal member 18 is restored to its original mounting state by its elasticity, thereby When the body 3 is attached to or detached from the container body 1, the seal member 18 and the plug body 12 do not rotate together. The sliding friction between the inner surface of the upper opening 2 and the third water stop portion 34 and the fourth water stop portion 35 is reduced, and the protrusion-like third water stop portion 34 and the fourth water stop portion 35 are twisted. And leakage due to breakage can be prevented.

図５は実施例２を示しており、前記実施例１と同一部分には同一符号を付し、その詳細な説明を省略する。実施例２では第二の注液穴36´を多数の小径で上下方向の貫通穴によって形成したものであり、このような場合でも第一の注液穴24に対して多数の第二の注液穴36´の一部が連通状態となって液の吐出ができるようになっている。また、実施例では蓋体４は第二の雌ネジ20、第二の雄ネジ21により螺着できるものを示したが、栓体本体に対してヒンジ軸を介して蓋体を開閉自在に設けてもよく、また実施例では上部円筒部13の口部13Ａによって飲み口を形成したものを示したが、上部円筒部13の上部に注ぎ口を設けるようにしてもよい。 FIG. 5 shows a second embodiment. The same parts as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, the second liquid injection hole 36 ′ is formed by a large number of small-diameter vertical through holes. Even in such a case, a large number of second liquid injection holes 36 ′ are formed with respect to the first liquid injection hole 24. A part of the liquid hole 36 ′ is in a communicating state so that the liquid can be discharged. Further, in the embodiment, the lid body 4 is shown to be screwed by the second female screw 20 and the second male screw 21. However, the lid body is provided so as to be openable and closable with respect to the plug body through a hinge shaft. In the embodiment, the drinking mouth is formed by the mouth portion 13A of the upper cylindrical portion 13, but a spout may be provided on the upper portion of the upper cylindrical portion 13.

以上のように本発明に係る飲料用容器の栓体は、各種の用途に適用できる。 As described above, the beverage container plug according to the present invention can be applied to various applications.

１容器本体
２上部開口
３栓体
４蓋体
10 第一の段部（内向き止水突起）
12 栓体本体
13Ａ口部
16 流路
17 底壁
18 シール部材
24 第一の注液穴
27 周面部
28 底面部
30 第一の止水部
31 第二の止水部
34 第三の止水部
35 第四の止水部
36 第二の注液穴
39 係合突起
40 上部指当て部
41 抜け止め鍔部
44 係合穴 1 Container body 2 Upper opening 3 Plug body 4 Lid body
10 First step (inward water stop protrusion)
12 Plug body
13A mouth
16 flow path
17 Bottom wall
18 Seal member
24 First injection hole
27 Circumference
28 Bottom
30 First water stop
31 Second water stop
34 Third water stop
35 Fourth water stop
36 Second injection hole
39 Engagement protrusion
40 Upper finger rest
41 Retaining collar
44 engagement hole

Claims

飲料用の容器本体の上部開口に被着され口部を有する栓体本体と、前記栓体本体に被着され該栓体本体の口部を開閉する蓋体と、前記栓体本体に装着され前記上部開口を水密に塞ぐシール部材を有する飲料用容器の栓体において、内部に上下方向の流路を設けた前記栓体本体の下部に底壁を設け、前記底壁に上下方向の第一の注液穴を設けると共に該底壁の中央に係合穴を設け、前記シール部材を有底凹状に形成し、該シール部材の底面部に第二の注液穴を設けると共に、前記底面部の中央に上向きの係合突起を設け、該係合突起を前記係合穴に挿入することにより前記シール部材を前記栓体本体に周方向で回転可能に設けることを特徴とする飲料用容器の栓体。 A plug body that is attached to the upper opening of the beverage container body and has a mouth, a lid that is attached to the stopper body and opens and closes the mouth of the stopper body, and is attached to the stopper body. In the stopper of a beverage container having a sealing member that seals the upper opening in a water-tight manner, a bottom wall is provided at a lower portion of the stopper body provided with a flow path in the vertical direction therein, and a first wall in the vertical direction is provided on the bottom wall. And an engagement hole in the center of the bottom wall, the seal member is formed in a bottomed concave shape, a second liquid injection hole is provided in the bottom surface portion of the seal member, and the bottom surface portion An upward engaging protrusion is provided at the center of the container, and the sealing member is rotatably provided in the circumferential direction of the plug body by inserting the engaging protrusion into the engaging hole. Plug body.

前記シール部材の上向きの係合突起の上端縁部に前記栓体本体の係合穴よりも径大の抜け止め鍔部を設けたことを特徴とする請求項１記載の飲料用容器の栓体。 2. A stopper for a beverage container according to claim 1, wherein a retaining hook portion having a diameter larger than that of the engaging hole of the stopper body is provided at an upper end edge of the upward engaging protrusion of the seal member. .

前記栓体本体、前記シール部材の前記第一、第二の注液穴は、おのおのの底壁、底面部の周縁に放射状に複数個配置し、前記第一、第二の注液穴の内周径と外周径がそれぞれ略同一にすると共に、前記シール部材が前記栓体に対して回動した場合にも相対した前記第一、第二の注液穴同士が総て覆われることなく前記栓体本体の内外へ連通する前記注液穴が液の吐出と通気に必要な開口面積、位置関係を保持することを特徴とする請求項１又は２記載の飲料用容器の栓体。 A plurality of the first and second liquid injection holes of the plug body and the seal member are arranged radially on the periphery of the bottom wall and the bottom surface of each of the plug body and the first and second liquid injection holes. The circumferential diameter and the circumferential diameter are substantially the same, and the first and second liquid injection holes that face each other even when the sealing member is rotated with respect to the plug body are not covered with each other. 3. The stopper for a beverage container according to claim 1 or 2, wherein the liquid injection hole communicating with the inside and outside of the stopper body maintains an opening area and a positional relationship necessary for liquid discharge and ventilation.

前記栓体本体の第一の注液穴の第一の周方向の長さが前記シール部材の第二の注液穴の第二の周方向の長さよりも大であり、かつ前記栓体本体の第一の注液穴の個数が前記シール部材の第二の注液穴の個数よりも少ないこと又は同数であることを特徴とする請求項３記載の飲料用容器の栓体。 The length in the first circumferential direction of the first liquid injection hole of the plug body is larger than the length in the second circumferential direction of the second liquid injection hole of the seal member, and the plug body. The number of the first liquid injection holes is less than or equal to the number of the second liquid injection holes of the sealing member.

前記シール部材の上向きの係合突起の上面の中央部に、前記シール部材を前記栓体に着脱するための指当て部を設けたことを特徴とする請求項１〜４のいずれか１項に記載の飲料用容器の栓体。 The finger contact part for attaching or detaching the said sealing member to the said plug body was provided in the center part of the upper surface of the upward engaging protrusion of the said sealing member, The any one of Claims 1-4 characterized by the above-mentioned. The stopper of the beverage container as described.

前記シール部材は、前記上部開口の内面の内向き止水突起に当接する第一の止水部及び前記内向き止水突起より上方側の内側面を水密に保つ第二の止水部を有すると共に、前記栓体を締め付けた際に前記シール部材の内面下部と前記栓体の内部外面下部の間を水密に保つ第三の止水部及び、前記シール部材上端の上向き面と前記栓体の外面上部の段部下向き面の間を水密に保つ第四の止水部を有することを特徴とする請求項１〜５のいずれか１項に記載の飲料用容器の栓体。 The seal member has a first water stop portion that contacts an inward water stop protrusion on the inner surface of the upper opening and a second water stop portion that keeps the inner side surface above the inward water stop protrusion watertight. And a third water stop portion that keeps watertight between the lower portion of the inner surface of the seal member and the lower portion of the inner outer surface of the plug member when the plug member is tightened, and the upward surface of the upper end of the seal member and the plug member The stopper for a beverage container according to any one of claims 1 to 5, further comprising a fourth water stop portion that keeps a space between the stepped downward surfaces of the outer surface upper portion.

前記シール部材は前記栓体の内部外面に対して平滑に設けられて、開栓時に前記第二の止水部で生ずるシール部材と前記上部開口の内側面の摩擦により栓本体に対して下方にずれることで前記第三の止水部、第四の止水部の水密状態が解除されて通気路が確保され、かつ前記上部開口から前記栓体を外した際に前記シール部材がその弾性によって元の装着状態に戻ることを特徴とする請求項１〜６のいずれか１項に記載の飲料用容器の栓体。 The seal member is provided smoothly with respect to the inner and outer surfaces of the plug body, and is downward with respect to the plug body due to friction between the seal member generated in the second water stop portion and the inner surface of the upper opening when the plug is opened. By shifting, the watertight state of the third water stop portion and the fourth water stop portion is released to secure the air passage, and when the plug body is removed from the upper opening, the seal member is elastically moved. It returns to the original mounting state, The stopper of the drink container of any one of Claims 1-6 characterized by the above-mentioned.