201114654 六、發明說明： c發明戶斤屬之技術領域】 發明領域 本發明係有關於幼兒用之飲料容器。 C先前技術3 發明背景 幼兒用之飲料容係安裝有可裝設或拆卸之接合器， 並設有能配合幼兒成長需求之飲用D(請參照專利文獻m 例）。制π除奶嘴或吸管科另有仿杯敎㈣口，幼兒 可直接以口就該飲用口再傾斜飲料容器開始飲用。 先行技術文獻 專利文獻 【專利文獻1】日本專利公開公報特開細2_321755號 I：發明内容3 發明概要 發明欲解決之課題 有些飲料容器於飲用〇却_古田 ， π 5又有用以防止飲料溢漏之防漏 機構以利攜行，但該機構益 再热法取下，因此無法更換零件。 進而，若欲做成可更換之愛Iβ 零件必須做成可防止幼兒誤食 之構造。 為此，本發明之目的即在於提供一種具有用以防止攜 帶時飲用口漏液並可更換之零件，且可防止誤食該零件之 飲料容器。 用以解決課題之手段 "m. 3 201114654 本發明之飲料容器，係具備有—用以於内部保持飲料 遮具有供飲料流出之流出部（15)之容器本體(2)、_可相對 於前述容器本體開啟閉合並於與前述流出部相向之裏面側 具有安裝部（21)之蓋子(3)、一具有可固定於前述安裝部上 之固定部（32)並用以於前述蓋子閉合時塞住前述流出部之 墊圈（6)、及一用以將前述固定部固定於前述安裝部上之墊 圈迫緊構件(7);前述㈣迫緊構件係可於可相對於前述安 裝部進仃裝設或拆卸之裝卸位置與用以固定前述墊圈之固 定位置間移動’且於前述墊圈迫緊構件及前述安裝部中至 少任一方，設有用以使前述墊圈迫緊構件變位之凸部 (43a)，以於前述墊圈迫緊構件於前述裝卸位置與前述固定 位置移動時，使如述固定部之彈性變形量車交位於前述固 定位置時増加。本發明乃藉由前述構造，解決上述課題。 ，據本發明之飲料容器’係於與飲料流出部相向之蓋 手之裏面侧所設之安裝部，藉由塾圈迫緊構件安裳塾圈。 藉此關上蓋子時可利用墊圈塞住流出部。墊圈係藉由墊 圈追緊構件固定，但因設有凸部，若㈣未產生彈性變形 則無法安^取下塾圈。㈣圈迫緊構件及安裝部中任一 方 P則墊圈迫緊構件將藉由與安裝部之關係使墊 圈彈f㈣而變位。藉此’幼兒將無法輕易取下塾圈，因 而可防止幼兒誤食墊圈，亦可更換塾圈。 务月之飲料各器亦有一種型態，前述安裝部係圓筒 狀，其外周面一部分具有突起(24)，且前述墊圈迫緊構件夢 由面心壓前述固定部一面繞著前述安裝部旋轉，使設於 201114654 前述墊圈迫緊構件上之前述凸部避開前述突起於前述裝卸 位置及前述固定位置間移動。依據該型態，由於墊圈迫緊 構件之凸部避開安裝部之突起’故可藉由墊圈迫緊構件按 壓墊圈之固定部。藉此，若墊圈未產生彈性變形則無法使 墊圈迫緊構件於裝卸位置與固定位置間移動，因此可防止 幼兒操作旅防止誤食。 本發明之飲料容器亦有一種型態，係於前述固定部之 與前述緊迫壓蓋構件之接觸面上’設有複數突出部(34)。依 據該型態，因突出部彈性變形而可藉由適切之壓迫力緊壓 墊圈迫緊構件。藉由調整突出部之形狀或個數，可將墊圈 迫緊構件之壓迫力設定達幼兒無法操作之程度。 本發明之飲料容器亦有一種型態，前述容器本體係設 有用以保持飲料之杯體(4)、與具有前述流出部並形成飲用 口之接合器（5) ’且4述接合器可相對於前述杯體進行裝設 或拆卸。依據該梨態，因杯體與接合器分離故操作容易， 便利性提高。 本發明之飲料容器亦有-種型態，係於前述接合器形 成有仿杯體緣部形狀之飲用口部⑴）。依據該型態，即使形 成有仿杯狀之飲用口部’仍可藉由_塞住流出部防止飲 料溢漏。且因墊圈可更換更提高了便利性。 另，上述說明中為便於本發明之理解乃以括弧標示附 回之參照元件標號’但本發明並非因此以圖示之型離為阳 發明欵果 —^ 承以上說明，本發明之飲料容器中，係於與飲料流出 5 201114654 部相向之蓋子之裏面側所設之安裝部上，藉由墊圈迫緊構 件安裝墊圈。藉此，關上蓋子時可利用墊圈塞住流出部。 墊圈係藉由墊圈迫緊構件固定，但因設有凸部，若墊圈未 產生彈性變形則無法安裝或取下墊圈。於墊圈迫緊構件及 安裝部中任一方設有凸部，則墊圈迫緊構件將藉由與安裝 部之關使墊圈彈性變形而變位。藉此，幼兒將無法輕易取 下墊圈，因而可防止幼兒誤食墊圈，亦可更換墊圈。 圖式簡單說明 第1圖係本發明之一型態之飲料容器重要部分截面圖。 第2圖係由蓋體裏面側觀看之透視圖。 第3圖係墊圈之透視圖。 第4圖係墊圈迫緊構件之透視圖。 第5圖係墊圈之安裝步驟說明圖。 第6圖所示者係第5圖之下一步。 第7圖所示者係第6圖之下一步。 第8圖所示者係第7圖之下一步。 L實施方式3 用以實施發明之型態 第1圖所示者係本發明之一型態之飲料容器重要部分 截面圖。飲料容器1係供幼兒用來飲用茶或果汁等飲料之容 器。飲料容器1係具備有一用以保持飲料並形成有供幼兒飲 用之飲用口之容器本體2，及一安裝成可相對於容器本體2 開啟閉合之作為蓋子之蓋體3。容器本體2係具有一用以保 持飲料之杯體4、與一可安裝於杯體4上並形成飲用口之接 201114654 合器5。杯體4係一有底筒狀之容器’内部可保持飲料。又， 杯體4上亦可設有握把部以供幼兒握持。杯體4上部則形成 有用以安裝接合器5之溝部4a。 接合器5係具備有一用以形成供飲用飲料之飲用口之 飲用口部11、一覆蓋杯體4上部以防飲料因過剩而流出之覆 蓋部12、一用以支持蓋體3形成可開啟閉合狀態之支持部 13、及一用以與杯體4之溝部4a相後合之溝部14。飲用口部 Η係做成仿杯體緣部之形狀。幼兒以口就飲用口部11再傾 斜飲料容器1飲用飲料’可進行以杯體飲用飲料之訓練。覆 蓋部12上設有供杯體4内部之飲料流出之流出部丨5。流出部 15係設有一貫通覆蓋部12之孔、及一設於該孔周圍且由覆 蓋部12連續而成之側壁15a。側壁15a係相對於覆蓋部12形 成凹陷之狀態。飲料係由孔流出，因此傾斜飲料容器1時可 抑制飲料之流出量。支持部13係與飲用口部u對向設置， 並支持蓋體3使其可相對於接合器5開啟或閉合。於支持部 13形成可供蓋體3之凸部23嵌入之凹部，蓋體3藉由繞著凹 部之轴線方向旋轉進行開啟閉合。溝部14係設於接合器5之 内側’可藉由與杯體4之溝部4a嵌合進行固定。又，接合器 5可藉此於杯體4裝設或卸下，亦可替換如吸管或奶嘴等不 同飲用口之接合器。 第2圖所示者係由蓋體3裏面側觀看之透視圖。蓋體3設 有一用以安裝後述之整圈6之安裴部21、一用以於蓋體3關 閉時將蓋體3固定於接合器5上之開閉部22、及可嵌入接合 器5之支持部13之凹部中之凸部23。安裝部21係呈圓筒狀 201114654 位於蓋體3之裏面中心側。安裝部21之上端部21a設有兩個 對向設置並形成突起之小片24。於安裝部21上安裝塾圈6， 進而以壓下墊圈6之狀態安裝墊圈迫緊構件7。 第3圖所示者係墊圈6之透視圖。墊圈6上設有可插進接 合器5之流出部15以防飲料漏出之凸部31 '及可嵌入蓋體3 之安裝部21中之固定部32。墊圈5係以樹脂、橡膠等彈性體 一體成形。凸部31係形成可嵌入流出部15中之狀態，並藉 由與側壁15a無縫隙地緊密貼合，防止飲料漏出（第丨圖）。固 疋部32係呈環狀，其内周面32a設有凹部33，用以避開安裂 部21之小片24後嵌入安裝部21。於固定部32之上面32b，按 預定之間隔設有複數突出部34。本型態中，係設置4個突出 部34。於固定部32之下面側，形成可與設於蓋體3上之突起 25嵌合之凹部35(參照第丨圖）。於安裝部21安裝墊圈6時使突 起25與凹部35相嵌合，藉以防止塾圈6以安裝部21為中心旋 轉。 第4圖所示者係墊圈迫緊構件7之透視圖。墊圈迫緊構 件7係呈環狀’並與_6之@定部32同樣於内周面^設有 凹部41，用以避開安裝部21之小片24後嵌入安裝部Μ。又， 於塾圈迫緊構件7之外周面關對向設有-對凸耳42,用以 =6及墊圈物她之咖⑽，使塾圈 =構件7繞其軸線方向旋轉。凸耳42係於外周面几上突出 :並構成安裝部21上已安裝塾圈迫緊構件了時可朝正反 操作之狀態。_迫緊構件7為於其進行旋轉操作 女裝。⑵之小片24於塾圈迫緊構件7之上面7c;f 201114654 動’乃將上面7C朝軸線方向退縮形成墊圈固定部43。於墊 圈固疋部43設有作為凸部之壓入部43a及與壓入部間產生 内低差之壓緊部43b。墊圈固定部43係形成壓入部43a較壓 緊部43b凸之高低差狀態。 蓋體3之開閉部22係設於蓋體3之裏面側，並構成蓋體3 關閉時可扣在接合器5之飲用口部11上固定之狀態。蓋體3 之凸部23係形成可嵌入接合器5之支持部13之狀態。另，亦 可構成可於接合器5上裝設或卸下蓋體3之狀態。 飲料容器1之墊圈6之安裝步驟說明如下。墊圈6係安襞 於蓋體3之裏面側。如第5圖所示，將塾圈6之固定部32嵌於 蓋體3之安裝部21上。此時，固定部32係以使安裝部21之小 片24與固定部32之凹部33之位置一致之狀態嵌於安裝部21 上’與此同時’將蓋體3之突起25嵌入墊圈6之凹部35。其 次如第6圖所示，再將墊圈迫緊構件7嵌於安裝有墊圈6之安 裴部21上。塾圈迫緊構件7亦與塾圈6相同，係以使小片24 與墊圈迫緊構件7之凹部41之位置一致之狀態嵌於安裝部 21上。墊圈迫緊構件7在此狀態下之位置稱為裝卸位置。 繼之，一面壓下墊圈迫緊構件7—面向右旋轉（第7圖）。 此時，精由強撼塾圈迫緊構件7使塾圈6產生彈性變形。料 由小片24於壓入部43a之上面移動，使墊圈迫緊構件7變位 形成固定部32之彈性變形量增加之狀態。特別是藉由設於 固定部32之上面32b之突出部34，可促進墊圈6之彈性變 形，並<以適當之壓迫力使墊圈迫緊構件7旋轉。藉由調整 突出部34之高度或面積、個數，可達到幼兒無法操作之硬 9 201114654 度°再按此狀態’使墊圈迫緊構件7旋轉至小片24位於壓 部43b(第8圖）。墊圈6之回復力使墊圈迫緊構件7緊壓、 24 ’並使墊圈迫緊構件7以無法旋轉之狀態固定於小片μ山 入壓緊部43b之固定位置。藉由上述步驟，墊圈6之安装= 成。墊圈6之取下步驟則以與安裝時相反之步驟進行。二4 藉由壓入部43a令墊圈6之固定部32彈性變形更甚於位在 定位置時，則無法使墊圈迫緊構件7於固定位置與裝卸位固 間移動。因此’藉由將塾圈迫緊構件人再旋轉之兩P^ 操作，可防止幼兒取下塾圈6及塾圈ϋ緊構件7,以防誤2 本發明並非以上述型態為限，以各種型態實施均可。 本型態係以墊圈迫緊構件7上設有壓人部仏之例 明’但並非以此為限。舉例言之，亦可設於安装部21上°。 :要:塾圈迫緊構件7或安裝部21任一方形成有麼入部 一、於_妓構件7移動時墊®迫緊構件即可於使固 定部32彈性變敎㈣、下進行變位。縣 裝部21之小片24鱼執園执 亦可於女 將安F邻2m 構件7之接觸面上形成凸部，並 將女裝仙及塾圈迫緊構 與墊圈迫緊構件7相嵌合之狀能。二，位置時 Π ^ 狀心右將形成於該小片24上之 凸杨成中央凸起且傾斜面、即截 態，則墊圈迫近椹于狀及U子狀之狀 動。 B ;固定位置及裝卸位置間順利移 本型態係、以她由彈性體—體成形為例進行說明，但 之凸部31瓣部32亦可分別由不同 素料成。本《所述之例係於杯式之接合器 10 201114654 6，但並非以此為限，亦可用於防止飲料從壺嘴或吸管等流 出。墊圈6之凸部31之形狀亦可配合飲用口側之形狀適當變 更。雖以於容器本體2設有杯體4及接合器5為例進行說明， 但並非以此為限，舉例言之，亦可於杯體4設有流出部15。 亦即，杯體4與接合器5亦可為一體成形，即使在此情形下 塞住流出部15時仍適用本發明之墊圈6及墊圈迫緊構件7。 小片24之個數亦非以例中設有2個為限，按適宜之個數設置 即可。 I：圖式簡單說明3 第1圖係本發明之一型態之飲料容器重要部分截面圖。 第2圖係由蓋體裏面側觀看之透視圖。 第3圖係墊圈之透視圖。 第4圖係墊圈迫緊構件之透視圖。 第5圖係墊圈之安裝步驟說明圖。 第6圖所示者係第5圖之下一步。 第7圖所示者係第6圖之下一步。 第8圖所示者係第7圖之下一步。 【主要元件符號說明】 1.. .飲料容器 6...墊圈 2.. .容器本體 7...墊圈迫緊構件 3·.·蓋體(蓋子） 7a··.内周面 4.. .杯體 4a...溝部 5.. .接合器 7b...外周面 7c____L 面 11…飲用口部 11 201114654 12...覆蓋部 32...固定部 13...支持部 32a...内周面 14...溝部 32b...上面 15…流出部 33...凹部 15a...側壁 34...突出部 21...安裝部 35...凹部 21a...上端部 41…凹部 22...開閉部 42.··凸耳 23...凸部 43...墊圈固定部 24···小片（突起） 43a_..壓入部（凸部) 25...突起 43b...壓緊部 31...凸部 12201114654 VI. INSTRUCTIONS: C TECHNICAL FIELD OF THE INVENTION The present invention relates to beverage containers for infants. C. Prior Art 3 Background of the Invention The beverage for children is equipped with an adapter that can be attached or detached, and is provided with drinking D that can meet the growth needs of young children (refer to the patent document m). The π nipple or straw department has another imitation cup 四 (4) mouth, and the child can directly drink the mouth of the drink mouth and then tilt the beverage container. PRIOR ART DOCUMENT PATENT DOCUMENT PATENT DOCUMENT PATENT DOCUMENT PATENT DOCUMENT 1 Japanese Patent Laid-Open Publication No. 2-321755 I: SUMMARY OF THE INVENTION SUMMARY OF THE INVENTION Problems to be Solved by the Invention Some beverage containers are used for drinking _ Gutian, π 5 is also useful to prevent beverage spillage The leak-proof mechanism facilitates the carrying, but the mechanism is reheated and removed, so parts cannot be replaced. Furthermore, if it is desired to make a replaceable Iβ part, it must be constructed to prevent the child from eating. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a beverage container having a member for preventing leakage of a drinking port when it is carried and which can be replaced, and which prevents accidental eating of the part. Means for Solving the Problem"m. 3 201114654 The beverage container of the present invention is provided with a container body (2) for retaining the beverage with an outflow portion (15) for the beverage to flow out, and _ relative to The container body is opened and closed, and has a cover (3) having a mounting portion (21) on a back side opposite to the outflow portion, a fixing portion (32) fixed to the mounting portion, and used for closing the cover when the cover is closed. a gasket (6) for accommodating the outflow portion, and a gasket pressing member (7) for fixing the fixing portion to the mounting portion; the (4) pressing member is detachable with respect to the mounting portion a fixing portion (43a) for dislocating the gasket pressing member and at least one of the gasket pressing member and the mounting portion at a position where the loading or unloading position is set or removed and fixed between the fixing position for fixing the gasket When the washer pressing member is moved to the fixed position and the fixed position, the elastic deformation amount of the fixed portion is added to the fixed position. The present invention solves the above problems by the above configuration. According to the present invention, the beverage container is attached to the mounting portion provided on the inner side of the handle facing the beverage outflow portion, and the member is tightened by the looper. By closing the lid, the gasket can be used to plug the outflow. The gasket is fixed by the gasket catching member. However, since the convex portion is provided, if the (4) is not elastically deformed, the lower loop cannot be removed. (4) One of the tightening members and the mounting portion P, the washer pressing member will be displaced by the mat b (four) in relation to the mounting portion. In this way, the toddler will not be able to easily remove the loop, thus preventing the child from ingesting the gasket and replacing the loop. There is also a type of the beverage device of the moon, the mounting portion is cylindrical, and a part of the outer peripheral surface thereof has a protrusion (24), and the gasket pressing member dreams to press the fixing portion around the mounting portion. Rotating so that the convex portion provided on the washer pressing member provided in 201114654 moves between the attaching and detaching position and the fixed position while avoiding the protrusion. According to this type, since the convex portion of the gasket pressing member avoids the projection of the mounting portion, the fixing portion of the gasket can be pressed by the gasket pressing member. Therefore, if the gasket is not elastically deformed, the gasket pressing member cannot be moved between the loading and unloading position and the fixed position, so that the child can be prevented from operating by accident. The beverage container of the present invention also has a pattern in which a plurality of projections (34) are provided on the contact surface of the fixing portion with the pressing cap member. According to this type, the member can be pressed against the gasket by a suitable pressing force due to the elastic deformation of the projection. By adjusting the shape or the number of the projections, the pressing force of the gasket pressing member can be set to an extent that the child cannot operate. The beverage container of the present invention also has a form, the container system is provided with a cup body (4) for holding a beverage, and an adapter (5) having the aforementioned outflow portion and forming a drinking opening, and the adapter is relatively Mounting or dismounting the cup body. According to this pear state, since the cup body and the adapter are separated, the operation is easy and the convenience is improved. The beverage container of the present invention is also of a type in which the mouthpiece is formed with a drinking mouth portion (1) having the shape of the edge of the cup. According to this type, even if a drinking cup-like drinking mouth portion is formed, it is possible to prevent the beverage from leaking by blocking the outflow portion. And the convenience of the gasket can be replaced. In addition, in the above description, in order to facilitate the understanding of the present invention, the referenced reference numerals are attached in the parentheses. However, the present invention is not in the form of the illustrations of the invention, and the above description, in the beverage container of the present invention. It is attached to the mounting portion provided on the inner side of the lid opposite to the beverage outflow 5 201114654, and the gasket is attached by the gasket pressing member. Thereby, the gasket can be used to plug the outflow portion when the lid is closed. The washer is fixed by the washer pressing member, but because the projection is provided, the washer cannot be attached or removed if the washer is not elastically deformed. When any of the washer pressing member and the mounting portion is provided with a convex portion, the washer pressing member is displaced by elastic deformation of the washer by the contact portion. As a result, the child will not be able to easily remove the gasket, thus preventing the child from ingesting the gasket and replacing the gasket. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of an essential part of a beverage container of one form of the present invention. Figure 2 is a perspective view of the inside of the cover. Figure 3 is a perspective view of the gasket. Figure 4 is a perspective view of the washer pressing member. Figure 5 is an explanatory diagram of the installation steps of the gasket. The figure shown in Figure 6 is the next step in Figure 5. The figure shown in Figure 7 is the next step in Figure 6. The figure shown in Figure 8 is the next step in Figure 7. L. Embodiment 3 Mode for Carrying Out the Invention FIG. 1 is a cross-sectional view showing an essential part of a beverage container of one form of the present invention. The beverage container 1 is a container for children to drink beverages such as tea or juice. The beverage container 1 is provided with a container body 2 for holding a drink and having a drinking opening for drinking a child, and a lid body 3 as a lid which is attached to be opened and closed with respect to the container body 2. The container body 2 has a cup 4 for holding a beverage, and a joint that can be attached to the cup 4 to form a drinking opening. The cup 4 is a bottomed cylindrical container which holds the beverage inside. Moreover, the cup body 4 may also be provided with a grip portion for the child to hold. The upper portion of the cup body 4 is formed with a groove portion 4a for mounting the adapter 5. The adapter 5 is provided with a drinking mouth portion 11 for forming a drinking mouth for drinking beverages, a covering portion 12 covering the upper portion of the cup body 4 to prevent the beverage from flowing out due to excess, and a supporting cover body 3 for opening and closing. The support portion 13 of the state and a groove portion 14 for being joined to the groove portion 4a of the cup body 4. The mouth of the drinking is made into the shape of the edge of the cup. The child can drink the drink in the cup by drinking the mouth 11 and then drinking the drink from the drink container. The cover portion 12 is provided with an outflow portion 丨5 for the outflow of the beverage inside the cup 4. The outflow portion 15 is provided with a hole penetrating the cover portion 12, and a side wall 15a provided around the hole and continuously formed by the cover portion 12. The side wall 15a is in a state of being recessed with respect to the covering portion 12. The beverage flows out of the hole, so that the beverage outflow can be suppressed when the beverage container 1 is tilted. The support portion 13 is disposed opposite the drinking mouth portion u and supports the lid body 3 to be opened or closed with respect to the adapter 5. A concave portion into which the convex portion 23 of the lid body 3 is fitted is formed in the support portion 13, and the lid body 3 is opened and closed by being rotated about the axial direction of the concave portion. The groove portion 14 is provided inside the adapter 5, and can be fixed by fitting into the groove portion 4a of the cup 4. Further, the adapter 5 can be attached or detached to the cup 4, and can be replaced with an adapter of a different drinking port such as a straw or a nipple. The figure shown in Fig. 2 is a perspective view of the inside of the cover body 3. The cover body 3 is provided with an ampoule portion 21 for mounting the full ring 6 described later, an opening and closing portion 22 for fixing the cover body 3 to the adapter 5 when the cover body 3 is closed, and an insertable connector 5 The convex portion 23 in the concave portion of the support portion 13. The mounting portion 21 has a cylindrical shape. 201114654 is located on the inner center side of the lid body 3. The upper end portion 21a of the mounting portion 21 is provided with two small pieces 24 which are opposed to each other and which are formed with protrusions. The weir 6 is attached to the mounting portion 21, and the washer pressing member 7 is attached in a state where the washer 6 is pressed. The figure shown in Fig. 3 is a perspective view of the gasket 6. The gasket 6 is provided with a projection 31' which can be inserted into the outflow portion 15 of the adapter 5 to prevent leakage of the beverage, and a fixing portion 32 which can be fitted into the mounting portion 21 of the cover 3. The gasket 5 is integrally molded of an elastomer such as a resin or a rubber. The convex portion 31 is formed in a state in which it can be fitted into the outflow portion 15, and is closely adhered to the side wall 15a without gaps to prevent leakage of the beverage (Fig. 3). The fixing portion 32 is annular, and the inner peripheral surface 32a is provided with a recess 33 for avoiding the small piece 24 of the split portion 21 and then being fitted into the mounting portion 21. On the upper surface 32b of the fixing portion 32, a plurality of projections 34 are provided at predetermined intervals. In this type, four protruding portions 34 are provided. On the lower surface side of the fixing portion 32, a concave portion 35 (refer to the first drawing) which can be fitted to the projection 25 provided on the lid body 3 is formed. When the washer 6 is attached to the mounting portion 21, the projection 25 is fitted to the recess 35 to prevent the loop 6 from rotating about the mounting portion 21. The figure shown in Fig. 4 is a perspective view of the washer pressing member 7. The washer pressing member 7 is annularly formed and has a recessed portion 41 similar to the inner portion 32 of the _6, for avoiding the small piece 24 of the mounting portion 21 and then fitting the mounting portion Μ. Further, the outer peripheral surface of the pressing member 7 is closed to the opposite side with the pair of lugs 42 for =6 and the gasket (10), so that the ring member 7 is rotated about its axial direction. The lug 42 is protruded from the outer peripheral surface several times and constitutes a state in which the mounting portion 21 is mounted on the mounting portion 21 in the forward and reverse directions. The pressing member 7 is a rotating operation for it. The small piece 24 of (2) is on the upper surface 7c of the pressing member 7 of the cymbal; the movement of the upper surface 7C is retracted in the axial direction to form the washer fixing portion 43. The pad fixing portion 43 is provided with a press-fitting portion 43a as a convex portion and a pressing portion 43b which generates an internal low difference from the press-fitting portion. The washer fixing portion 43 forms a state in which the press-fitting portion 43a is convexer than the pressing portion 43b. The opening and closing portion 22 of the lid body 3 is provided on the back side of the lid body 3, and is configured to be fastened to the drinking opening portion 11 of the adapter 5 when the lid body 3 is closed. The convex portion 23 of the lid body 3 is formed in a state in which it can be fitted into the support portion 13 of the adapter 5. Further, a state in which the lid body 3 can be attached or detached to the adapter 5 can be constructed. The installation procedure of the gasket 6 of the beverage container 1 is explained below. The washer 6 is attached to the inner side of the cover 3. As shown in Fig. 5, the fixing portion 32 of the loop 6 is fitted to the mounting portion 21 of the lid 3. At this time, the fixing portion 32 is fitted to the mounting portion 21 in a state where the small piece 24 of the mounting portion 21 and the concave portion 33 of the fixing portion 32 coincide with each other. At the same time, the projection 25 of the cover 3 is fitted into the recess of the gasket 6. 35. Next, as shown in Fig. 6, the gasket pressing member 7 is fitted to the dam portion 21 to which the gasket 6 is attached. The loop pressing member 7 is also the same as the loop 6 and is fitted to the mounting portion 21 in a state where the small piece 24 is aligned with the position of the recess 41 of the washer pressing member 7. The position of the washer pressing member 7 in this state is referred to as a loading and unloading position. Then, the gasket pressing member 7 is pressed against the right side (Fig. 7). At this time, the tightening member 7 is tightened by the strong snap ring to elastically deform the loop 6 . The small piece 24 is moved over the press-fitting portion 43a to displace the washer pressing member 7, and the amount of elastic deformation of the fixed portion 32 is increased. In particular, by the projections 34 provided on the upper surface 32b of the fixing portion 32, the elastic deformation of the gasket 6 can be promoted, and the gasket pressing member 7 can be rotated by an appropriate pressing force. By adjusting the height or area and the number of the projections 34, it is possible to achieve the hardness of the child's inability to operate. 9 201114654 degrees. In this state, the washer pressing member 7 is rotated to the small piece 24 at the pressing portion 43b (Fig. 8). The restoring force of the washer 6 causes the washer pressing member 7 to be pressed, 24' and the washer pressing member 7 to be fixed in a non-rotatable state to the fixed position of the small piece μ into the pressing portion 43b. With the above steps, the installation of the gasket 6 is completed. The removal step of the gasket 6 is carried out in the reverse order of the installation. When the fixing portion 32 of the gasket 6 is elastically deformed more than the fixed position by the press-fitting portion 43a, the gasket pressing member 7 cannot be moved between the fixed position and the loading and unloading position. Therefore, by the two P^ operations of tightening the member and then rotating the member, it is possible to prevent the child from removing the loop 6 and the loop tightening member 7, in order to prevent the error 2, the present invention is not limited to the above type, Various types of implementation can be. This type is exemplified by the fact that the gasket pressing member 7 is provided with a pressing portion, but is not limited thereto. For example, it can also be disposed on the mounting portion 21 . : It is assumed that either the snap ring member 7 or the mounting portion 21 is formed with the inserting portion. When the y-shaped member 7 is moved, the pad member pressing member can elastically deform the fixing portion 32 (four) and displace the lower portion. The small piece of the county department 21, the fish garden, can also form a convex part on the contact surface of the female 2A member 2, and the female singer and the shackle are tightly fitted to the gasket pressing member 7. The shape can be. Second, the position Π ^ The right heart will be formed on the small piece 24, the convex poplar is centered and inclined, that is, the off-state, the gasket is forced into a shape and a U-like shape. B; The smooth movement between the fixed position and the loading and unloading position is described by taking an elastomer-body forming as an example, but the convex portion 31 can also be made of different materials. The example described herein is based on the cup adapter 10 201114654 6, but is not limited thereto, and can also be used to prevent the beverage from flowing out of the spout or straw. The shape of the convex portion 31 of the gasket 6 can also be appropriately changed in accordance with the shape of the drinking opening side. Although the container body 2 is provided with the cup body 4 and the adapter 5 as an example, the present invention is not limited thereto. For example, the cup body 4 may be provided with the outflow portion 15. That is, the cup body 4 and the adapter 5 may be integrally formed, and the gasket 6 and the gasket pressing member 7 of the present invention are applied even when the outflow portion 15 is plugged in this case. The number of the small pieces 24 is not limited to two in the example, and may be set according to the appropriate number. I: BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an essential part of a beverage container of one form of the present invention. Figure 2 is a perspective view of the inside of the cover. Figure 3 is a perspective view of the gasket. Figure 4 is a perspective view of the washer pressing member. Figure 5 is an explanatory diagram of the installation steps of the gasket. The figure shown in Figure 6 is the next step in Figure 5. The figure shown in Figure 7 is the next step in Figure 6. The figure shown in Figure 8 is the next step in Figure 7. [Explanation of main component symbols] 1. Beverage container 6...Washer 2:. Container body 7...Washer pressing member 3·.·Cover (cover) 7a··. Inner circumferential surface 4.. Cup 4a...groove portion 5.. adapter 7b...outer peripheral surface 7c____L surface 11...drinking mouth portion 11 201114654 12...covering portion 32...fixing portion 13...support portion 32a.. Inner peripheral surface 14...groove portion 32b...upper surface 15...outflow portion 33...recessed portion 15a...side wall 34...projection portion 21...mounting portion 35...upper portion of recess portion 21a... Portion 41...recessed portion 22...opening and closing portion 42.·the lug 23...the convex portion 43...the gasket fixing portion 24···the small piece (protrusion) 43a_.. the press-in portion (the convex portion) 25... Protrusion 43b...pressing portion 31...convex portion 12