200817246 九、發明說明： 【發明所屬之技術領域】 本發明係與塑膠製盒有關，尤其針對用於固定蓋體於 盒體之扣合裝置，及具有該扣合裝置之塑膠製容器。 【先前技術】 習知用以容納物品及儲藏食物之密封盒結構容器，如 「第1〜3圖」所示之塑膠製容器。塑膠製之密封盒100包 含容器主體110及蓋體120、凸出於容器主體110頂部之 多個固定凸出部111，及設置於該蓋體120周邊的緊扣翼 130，該些緊扣翼130透過鉸接部140連接於蓋體120週 邊，且透過鉸接部140該緊扣翼130可轉動。另該緊扣翼 130上設有與該固定凸出部111相對應之鎖孔131，該鎖孔 131用以緊扣固定凸出部111使緊扣翼130緊扣該蓋體120 與容器主體110。 蓋體120之頂蓋表面121週緣内形成凹處122，與容 器主體110頂邊113接合，其中襯墊150可插設於該凹處 、 122。 當蓋體120置於容器主體110之上並用手指壓下該緊 扣翼130之施壓部132,即將緊扣翼130壓向容器主體110 之固定凸出部111時，固定凸出部111將分別穿越鎖孔131 而緊扣。同時，因為該頂邊113將緊壓襯墊150於該凹處 122，容器主體110之内部空間將與外界隔絕形成密封的 狀態。 如圖所示，在矩形密封盒100的情況下，及一邊長度 200817246 .大於10公分的情況下’緊扣翼！3〇之鎖孔131及容器主 體110之固定凸出部⑴為每邊兩個以確保有充足緊扣麗 力及一致之密封壓力。然而，該鉸接部14〇以較緊扣翼13〇 極低之厚度連接該緊扣翼130與該蓋體12〇,而欽接部M〇 因為需應付該緊扣翼130相對於蓋體12〇的彎折，所以在 製作上將不可以太薄，否則該鉸接冑M〇 $彎曲應力將因 反覆動作的產生而變得脆弱。 尤其在該鉸接部14〇之鉸接尾端部份141，該部份更 合易因為重覆摺疊及打開該緊扣翼13〇時容易撕裂與損壞 之斷裂部份。—旦該鉸接尾端部份141撕裂，即使只有一 點點，其撕裂處將持續擴大，密封盒1〇〇之壽命並因此而 降低。但在長度大於10公分的情況下該鉸接部140如果 太厚，該緊扣翼13〇的摺疊及打開將會變的很吃力，不易 單手操作。 另’該些固定凸出部111的設計也將無法保有該容器 t主體110頂部周邊之完整性，且當該容器主體110為圓型 開口時’其蓋體120之緊扣翼130的鎖孔131必須與該容 器主體110上之固定凸出部ill對準，才可以使該鎖孔131 緊扣固定凸出部111，使緊扣翼130緊扣該蓋體120與容 器主體110。 【發明内容】 本發明之目的在提供_種緊扣結構，在不改變其蓋體 #緊扣翼間鉸接部的厚度情況下，保有鉸接部的應力，但 該緊扣翼的摺燮及打開的操作嫁將比習用的更省力。 200817246 本發明之再一目的在提供一種密封盒，其容器主體無 該些固定凸出部，所以該容器主體頂部周邊保有完整性， 且當該密封盒為圓型開口時，該緊扣翼無鎖孔須與該固定 凸出部對準之問題，所以緊扣翼緊扣該蓋體與容器主體之 操作將更方便。 本發明之緊扣結構係設置於一蓋體週邊之緊扣固定 結構，其包括：至少一由該蓋體週邊向外延伸之緊扣翼， 且該緊扣翼下方至少設有一卡扣部，用以緊扣固定該蓋 體；以及一鉸接部，該鉸接部用以連接前述緊扣翼於該蓋 體週邊，其中該鉸接部中設有複數段之細縫洞，使該緊扣 翼與蓋體連接之鉸接區域變小。 其中，該鉸接部的厚度小於該緊扣翼的厚度，使該緊 扣翼可藉由該鉸接部相對於該蓋體摺疊。 本發明之密封盒之實施例包括：一盖體’其周邊设有 複數個緊扣翼，且該緊扣翼下方至少設有一卡扣部；一鉸 接部連接前述緊扣翼於該蓋體週邊，其中該鉸接部的厚度 小於該緊扣翼的厚度，使該緊扣翼可藉由該鉸接部相對於 該蓋體摺疊，且該鉸接部中設有複數段之細縫洞，使該緊 扣翼與蓋體連接之鉸接區域變小；以及一容器主體，且鄰 近頂邊處設有一扣合結構，且該扣合結構與該卡扣部相四 配用，用以緊扣固定該蓋體。 其中’該扣合結構包括一凹陷狀之扣合部，該扣合部 可以使該卡扣部壓入緊勾，使該緊扣翼緊勾扣該蓋體於該 容器主體’所以該扣合結構可延該該容器主體頂部周邊設 7 200817246 - 置’保有其頂部開口之完整性，當該容器主體為圓型開口 時’該蓋體之緊扣翼可以很方便的被按壓。 在該鉸接部需具必要的厚度的情況下，本發明將使該 欽接部具足夠的厚度與彎曲應力，以應付該鉸接部上下轉 動的摺疊及打開動作。而本發明之鉸接部透過細縫洞的形 成’將使緊扣翼與蓋體連接之鉸接區域變小，因此將不會 因為該鉸接部的厚度與該緊扣翼的長度問題而增加該緊 扣翼上下轉動的摺疊及打開動作的硬度，使得使用者在操 作該緊扣翼的摺疊及打開的動作變跟短型緊扣翼一樣省 力，更易於單手操作。 本發明之進一步可在該蓋體之頂蓋表面向下設一套 孔，且該套孔外周側設有複數個氣孔；及一抽真空用之傘 閥’藉此保持該密封盒内部呈真空態樣，使被容裝在該密 封盒内之物品能延長其保存期限，透過該傘閥的應用，可 增加本發明除了密封功能外，也加入真空之功能。 【實施方式】 ' 茲有關本發明之詳細内容及技術說明，現以實施例來 作進一步說明，但應瞭解的是，該等實施例僅為例示說明 之用，而不應被解釋為本發明實施之限制。 請參閱「第4-1圖至第6圖」所示，本發明之實施例 之塑膠製欲封盒200包括一容器主體210及一蓋體220 ’ 係以塑膠材料射出成形製成。其中該容器主體210鄰近頂 邊213處週邊設有一凸出於容器主體no之扣合結構 211，且該扣合結構211下方設有一扣合部212。該蓋體220 8 200817246 - 周邊設有複數個緊扣翼230(如圖示中的矩形密封盒200四 個邊各一個），且各緊扣翼230透過一鉸接部240連接於該 蓋體220週邊，透過該鉸接部240該緊扣翼230可相對於 該蓋體220週邊上下彎折轉動。其中，該鉸接部24〇除了 鉸接尾端部份241之中間段將形成複數段之細缝洞242， 如0.2mm左右的細縫洞242，該細縫洞242將使該緊扣翼 230與該蓋體220週邊連接之鉸接區域變小。 另該緊扣翼130上設有與該扣合部212相配合之複數 個卡扣部231，該卡扣部231用以緊勾扣於該扣合結構211 之扣合部212 ’使該緊扣翼230緊勾扣該蓋體220於該容 器主體210上。 該蓋體220之頂蓋表面221週緣内形成一凹處222與 容器主體210頂邊213接合，其中一襯墊250可插設於該 凹處122。當該蓋體220置於該容器主體210之上時，用 手指壓下該緊扣翼230之施壓部232 ,即將該緊扣翼230 壓向該谷器主體210之扣合結構2Π之扣合部212，該緊 " 扣翼230上之卡扣部231將分別擠壓該扣合結構211下緣 而勾至該扣合部212而緊勾扣。同時，因為該頂邊113將 緊壓該襯墊250於該凹處222，容器主體21〇之内部空間 將與外部隔絕形成密封狀態。 藉由刖述結構，在如矩形之密封盒200情況下，當一 邊長度大於ίο公分的情況下，該緊扣翼23〇之卡扣部231 為每邊最至少兩個，以確保有充足緊勾扣壓力及一致之密 封壓力。 200817246 私田在該^部因為需應付該緊扣翼230上下轉 及打開動作，所以在該緊扣翼咖長度大於1〇 =9ζιΓ兄下’讀竣接部240將可具必要的厚度，使該鉸 私^具足_彎曲應力’以應付該鉸接部240上下轉 的摆主及打開動作，而該鉸接部24〇透過細縫洞⑽的 :成，使該緊扣翼咖與該蓋體2㈣邊連接之鉸接區域 集’、，使的不因為該鉸接部240的厚度與該緊扣翼230的 ，題而增加該緊扣翼23〇上下轉動的摺疊及打開動作 私硬性吏得使用者在操作該緊扣翼230的摺疊及打開的 作同短型緊扣翼23〇 一樣省力，更易於單手操作。而習 、、最容易撕裂與損壞之鉸接尾端部份⑷，將因為該細縫 ，242的形成’使該處的厚度可增厚，使該狡接尾端部份 241更不易撕裂與損壞而斷裂。 =^另該扣合結構211與其扣合部212的設計也將保有 該合器主體210頂部周邊之完整性，當該容器主體21〇為 ，型開口時，該蓋體22G之緊扣翼，可以很方便的被按 ，，使該些卡扣部231可緊勾扣於該扣合結構211之扣合 β 212 ’使該緊扣翼23()緊勾扣該蓋體22()於該容器主體 一請參閱「第7〜8圖」所示，本發明之另一實施例係在 該蓋體22G之頂蓋表面221向下設—凹埠223，該凹埠奶 中央設一貫通内外之套孔224，且該凹4 223之套孔似 外周側設有複數個氣孔225。 一傘閥260，該傘閥260包括一膜片262，一位於該 200817246 膜片262上方之按鈕263，及一位於該膜片262下方之擋 卡部261，該伞闕260係由該擔卡部261插套在該套孔224 上，且該膜片262之寬度係能覆蓋在該凹埠223之氣孔225 藉此，組合時該傘閥260可強行按壓套入於該蓋體22〇 之套孔224内，且藉由該傘閥260之該擋卡部261卡抵於 該蓋體220下方底壁獲得定位；使用時可藉一抽氣筒（圖中 未示）罩在該凹埠223上抽氣，或手按壓該頂蓋表面221， 此時膜片262會被抽吸而往上掀，該密封盒2〇〇内之空氣 可由該凹埠223之氣孔225釋出’當該密封盒2〇〇内已呈 真空態樣時，拔掉抽氣筒或停止按壓該頂蓋表面221，誃 丰閥260上的膜片262會受壓力之影響而緊貼在該各氣孔 225上方，保持該密封盒2〇〇内部呈真空態樣，使被容裝 在該密封盒200内之物品能延長其保存期限。 " 如欲打開該蓋體220存取物品於該密封盒2〇〇内，僅 以手下按該傘閥260之按紐263，可藉由按知263的下壓 令該膜片262變形，進而可脫離該凹埠223表面之各氣孔 225，可使外面的空氣順利進入該密封盒綱β，如= 可更方便將該蓋體，打開。透過該傘閥⑽的應用 增加本發明密封盒的應用面，除了密封功能外，更加 入真空之功能。 以上介紹的僅僅是基於本發明的實施例，並不能 來限疋本發明的範圍。任何對本發明的裝置作本技 内熟知的部件㈣換、組合、分立，以及對本發明實施^ 11 200817246 / 驟作本技術領域内熟知的等同改變或替換均不超出本發 明的揭露以及保護範圍。 12 200817246 【圖式簡單說明】 :系顯不習知之塑膠製密封盒蓋 =，係第1圖蓋體之橫截面。 主體Y系’具不驾知之矩形密封盒，包含組合蓋體與容器 第7圖，:系實另= 第8圖，係顯示使用第=:=fr盒蓋體。 圖。 口盍體之雄、封盒組合之剖面示意 【主要元件符號說明】 (習知） 100 ·_密封盒 ill ·固定凸出部 120 :蓋體 122 :凹處 131 ··鎖孔 140 :鉸接部 150 :襯墊 (本發明） 200 :密封盒 211 :扣合結構 110 :容器主體 113 :頂邊 121 :頂蓋表面 13〇 :緊扣翼 132 :施壓部 141 ·鉸接尾端部份 210 ··容器主體 212 :扣合部 13 200817246 213 ： 221 223 225 231 240 242 260 262 ： 頂邊 220 ： 蓋體 頂蓋表面 222 ： 凹處 凹璋 224 :套孔 氣孔 230 ： 緊扣翼 卡扣部 232 ： 施壓部 鉸接部 241 ： 鉸接尾端部份 細縫洞 250 ： 襯墊 傘閥 261 ： 擔卡部 :膜片 263 ： 按紐 14[Technical Field] The present invention relates to a plastic case, and more particularly to a fastening device for fixing a cover to a case, and a plastic container having the same. [Prior Art] A sealed box structure container for accommodating articles and storing foods, such as a plastic container shown in "1 to 3". The plastic sealing case 100 comprises a container body 110 and a cover body 120, a plurality of fixing protrusions 111 protruding from the top of the container body 110, and a fastening wing 130 disposed at the periphery of the cover body 120, the fastening wings The 130 is connected to the periphery of the cover 120 through the hinge 140, and the fastening wing 130 is rotatable through the hinge 140. The locking wing 131 is provided with a locking hole 131 corresponding to the fixing protrusion 111. The locking hole 131 is used for fastening the protruding portion 111 to fasten the fastening wing 130 to the cover body 120 and the container body. 110. A recess 122 is formed in the periphery of the top cover surface 121 of the cover 120 to engage the top edge 113 of the container body 110, wherein the gasket 150 can be inserted into the recess 122. When the cover 120 is placed on the container body 110 and the pressing portion 132 of the fastening wing 130 is pressed by a finger, that is, when the fastening flap 130 is pressed against the fixing protrusion 111 of the container body 110, the fixing protrusion 111 will They are fastened through the lock holes 131 respectively. At the same time, since the top edge 113 will press the liner 150 in the recess 122, the internal space of the container body 110 will be isolated from the outside to form a sealed state. As shown in the figure, in the case of the rectangular sealed box 100, and the length of one side 200817246. If it is larger than 10 cm, the tight wings! The locking projections 131 of the 3" and the fixing projections (1) of the container body 110 are two on each side to ensure sufficient tightness and uniform sealing pressure. However, the hinge portion 14 connects the fastening wing 130 and the cover body 12 with a thickness that is relatively low, and the inching portion M is required to cope with the fastening wing 130 relative to the cover 12 The bending of the cymbal, so it should not be too thin in the production, otherwise the bending 应力M〇$ bending stress will become fragile due to the repeated action. In particular, in the hinged end portion 141 of the hinge portion 14, the portion is more susceptible to tearing and rupturing the broken portion when the folding flap 13 is repeatedly folded and opened. Once the hinged end portion 141 is torn, even if there is only a little bit, the tearing portion will continue to expand, and the life of the sealed case will be reduced and thus reduced. However, if the hinge portion 140 is too thick in the case where the length is more than 10 cm, the folding and opening of the fastening flap 13 will become very difficult and it is difficult to operate with one hand. In addition, the design of the fixing protrusions 111 will not retain the integrity of the top periphery of the main body 110 of the container t, and when the container body 110 has a circular opening, the locking hole of the tight wing 130 of the cover 120 The fixing protrusion ill of the container body 110 must be aligned with the fixing protrusion ill of the container body 110 so that the locking hole 131 can be fastened to the fixing body 111 so that the fastening wing 130 can fasten the lid body 120 and the container body 110. SUMMARY OF THE INVENTION The object of the present invention is to provide a fastening structure that retains the stress of the hinge without changing the thickness of the hinge portion of the cover body, but the folding and opening of the fastening wing The operation of marriage will be more labor-saving than the practice. A further object of the present invention is to provide a sealed box in which the container body does not have the fixing projections, so that the top periphery of the container body maintains integrity, and when the sealing box has a circular opening, the fastening wing has no The keyhole has to be aligned with the fixing projection, so that it is more convenient for the fastening flap to fasten the cover and the container body. The fastening structure of the present invention is provided on a fastening structure around a cover body, and comprises: at least one fastening wing extending outward from the periphery of the cover body, and at least one buckle portion is disposed under the fastening wing, a fastening portion for fastening the cover body; and a hinge portion for connecting the fastening sleeve to the periphery of the cover body, wherein the hinge portion is provided with a plurality of slit holes in the hinge portion, so that the fastening wing is The hinge area of the cover connection becomes smaller. Wherein the thickness of the hinge portion is smaller than the thickness of the fastening wing, so that the fastening wing can be folded relative to the cover body by the hinge portion. The embodiment of the sealed box of the present invention comprises: a cover body having a plurality of fastening wings at the periphery thereof, and at least one buckle portion is disposed under the fastening wing; a hinge portion connecting the fastening wings around the cover body The thickness of the hinge portion is smaller than the thickness of the fastening wing, so that the fastening wing can be folded relative to the cover body by the hinge portion, and the plurality of slit holes are provided in the hinge portion to make the tightness The hinge area connecting the buckle and the cover body is small; and a container body is provided with a fastening structure adjacent to the top edge, and the fastening structure is matched with the buckle portion for fastening the cover body. Wherein the fastening structure comprises a recessed fastening portion, the fastening portion can press the buckle portion into the fastening hook, so that the fastening wing hooks the cover body to the container body, so the fastening The structure can extend the top periphery of the container body 7 200817246 - to maintain the integrity of its top opening, when the container body is a circular opening, the tight wing of the cover can be conveniently pressed. In the case where the hinge portion is required to have a necessary thickness, the present invention will provide the plucking portion with sufficient thickness and bending stress to cope with the folding and opening action of the hinge portion up and down. However, the formation of the hinge portion of the present invention through the formation of the slit hole will reduce the hinge region where the fastening wing and the cover body are connected, so that the tightness will not be increased due to the thickness of the hinge portion and the length of the fastening wing. The rigidity of the folding and opening action of the flap up and down rotation makes the folding and opening action of the user to operate the tight flaps as labor-saving as the short-type tight-fitting wings, and is easier to operate with one hand. Further, the present invention can further provide a hole in the top surface of the cover body, and a plurality of air holes are arranged on the outer peripheral side of the sleeve hole; and an umbrella valve for vacuuming, thereby maintaining a vacuum inside the sealing box In this way, the articles accommodated in the sealed box can extend the shelf life thereof, and the application of the umbrella valve can increase the function of the vacuum addition of the present invention in addition to the sealing function. DETAILED DESCRIPTION OF THE INVENTION The detailed description and technical description of the present invention will be further described by the embodiments, but it should be understood that the embodiments are only illustrative and should not be construed as Implementation restrictions. Referring to the "FIG. 4-1 to FIG. 6", the plastic capsule 20 of the embodiment of the present invention comprises a container body 210 and a lid 220' which are formed by injection molding of a plastic material. A fastening structure 211 protruding from the container body is disposed adjacent to the periphery of the top edge 213, and a fastening portion 212 is disposed under the fastening structure 211. The cover body 220 8 200817246 - is provided with a plurality of fastening wings 230 (one of the four sides of the rectangular sealing box 200 in the figure), and the fastening wings 230 are connected to the cover body 220 through a hinge portion 240. Through the hinge portion 240, the fastening wing 230 can be bent up and down with respect to the periphery of the cover body 220. Wherein, the hinge portion 24 except the middle portion of the hinged end portion 241 will form a plurality of slit holes 242, such as a slit hole 242 of about 0.2 mm, which will make the tight wing 230 The hinge area to which the cover 220 is connected is small. The plurality of fastening portions 231 are matched with the fastening portion 212, and the fastening portion 231 is fastened to the fastening portion 212 of the fastening structure 211 to make the tightness The buckle 230 tightly hooks the cover 220 to the container body 210. A recess 222 is formed in the periphery of the top surface 221 of the cover 220 to engage the top edge 213 of the container body 210, and a gasket 250 can be inserted into the recess 122. When the cover 220 is placed on the container body 210, the pressing portion 232 of the fastening wing 230 is pressed by a finger, that is, the fastening wing 230 is pressed against the fastening structure of the bar body 210. The fastening portion 231 of the fastening portion 230 is pressed against the lower edge of the fastening structure 211 and hooked to the fastening portion 212 to be hooked. At the same time, since the top edge 113 will press the gasket 250 in the recess 222, the inner space of the container body 21 will be sealed from the outside to form a sealed state. By arranging the structure, in the case of a sealed box 200 such as a rectangular shape, when the length of one side is greater than ίο cm, the fastening portion 231 of the fastening flap 23 is at least two at each side to ensure sufficient tightness. Hook pressure and consistent sealing pressure. 200817246 The private field in the section is required to cope with the upswing and opening action of the tight wing 230, so the length of the tight-fitting wing is greater than 1〇=9ζιΓ, and the reading bracket 240 will have the necessary thickness. The hinge has a foot_bending stress' to cope with the swinging and opening action of the hinge portion 240, and the hinge portion 24 passes through the slit hole (10) to make the tight wing coffee and the cover body 2 (4) The hinged area set of the side joints is such that the folding and opening action of the fastening flaps 23 are not increased because of the thickness of the hinges 240 and the fastening wings 230. The folding and opening of the tight-fitting wings 230 is as labor-saving as the short-type fastening wings 23, making it easier to operate with one hand. The hinged end portion (4), which is the easiest to tear and damage, will be thickened by the formation of the slit 242, making the end portion 241 less tearable and Broken and broken. The design of the fastening structure 211 and the fastening portion 212 thereof will also maintain the integrity of the top periphery of the connector body 210. When the container body 21 is shaped and opened, the fastening wings of the cover 22G, It can be conveniently pressed so that the fastening portions 231 can be fastened to the fastening β 212 ' of the fastening structure 211 so that the fastening wings 23 ( ) are fastened to the cover 22 ( ) As shown in FIG. 7 to FIG. 8 , another embodiment of the present invention is provided with a concave 223 on the top surface 221 of the cover 22G, and a central portion of the concave milk is disposed inside and outside. The hole 224 is sleeved, and the sleeve hole of the recess 4 223 is provided with a plurality of air holes 225 on the outer peripheral side. An umbrella valve 260 includes a diaphragm 262, a button 263 located above the 200817246 diaphragm 262, and a card portion 261 located below the diaphragm 262. The umbrella 260 is supported by the card The portion 261 is sleeved on the sleeve hole 224, and the width of the diaphragm 262 can cover the air hole 225 of the recess 223. When combined, the umbrella valve 260 can be forcibly pressed into the cover body 22 The sleeve 224 is located in the hole 224, and the card portion 261 of the umbrella valve 260 is locked against the bottom wall of the cover body 220 to obtain a positioning; in use, an air pump (not shown) can be used to cover the recess 223. Pumping up, or hand pressing the top cover surface 221, when the diaphragm 262 is sucked up, the air in the sealed box 2 can be released by the air hole 225 of the recess 223 'When the seal When the inside of the box 2 is in a vacuum state, the pumping cylinder is unplugged or the top surface 221 of the top cover is stopped. The diaphragm 262 on the phoenix valve 260 is pressed against the air holes 225 to maintain the pressure. The inside of the sealed casing 2 is in a vacuum state, so that the articles accommodated in the sealed casing 200 can extend the shelf life thereof. " If the cover 220 is to be opened and the article is accessed in the sealed box 2, the button 262 of the umbrella valve 260 can be pressed only by the hand, and the diaphragm 262 can be deformed by pressing down the 263. Further, the air holes 225 on the surface of the recess 223 can be separated, so that the outside air can smoothly enter the sealed box frame β, for example, the cover can be opened more conveniently. Through the application of the umbrella valve (10), the application surface of the sealing box of the present invention is added, and in addition to the sealing function, the function of vacuuming is further enhanced. The above description is only based on the embodiments of the present invention and is not intended to limit the scope of the present invention. Any alterations, substitutions, and substitutions of the components of the present invention which are well known in the art may be made without departing from the scope of the invention and the scope of the invention. 12 200817246 [Simple description of the diagram]: The plastic sealed box cover is not known. It is the cross section of the cover of Figure 1. The main body Y system 'has a rectangular seal box with no knowing knowledge, including the combined cover body and the container. Fig. 7, Fig. 8 shows the use of the =:=fr cover body. Figure. Cross-section of the male and female combination of the corpus callosum [Description of the main components] (Generally known) 100 · Sealing box ill · Fixing projection 120 : Cover 122 : Recess 131 · Locking hole 140 : Hinge 150 : Liner (Invention) 200: Sealing Box 211: Fastening Structure 110: Container Body 113: Top Edge 121: Top Cover Surface 13: Tightening Wing 132: Pressing Portion 141 • Hinged End Portion 210·· Container body 212: fastening portion 13 200817246 213 : 221 223 225 231 240 242 260 262 : top edge 220 : cover top cover surface 222 : recessed recess 224 : sleeve hole vent 230 : tight wing snap portion 232 : Pressing part hinge 241 : hinged end part part slit hole 250 : padded umbrella valve 261 : support part: diaphragm 263 : button 14