JP2543258Y2 - Automatic pressure equalizing valve for closed containers - Google Patents
Automatic pressure equalizing valve for closed containersInfo
- Publication number
- JP2543258Y2 JP2543258Y2 JP6323391U JP6323391U JP2543258Y2 JP 2543258 Y2 JP2543258 Y2 JP 2543258Y2 JP 6323391 U JP6323391 U JP 6323391U JP 6323391 U JP6323391 U JP 6323391U JP 2543258 Y2 JP2543258 Y2 JP 2543258Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- valve body
- packing
- air hole
- closed container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Closures For Containers (AREA)
- Lift Valve (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、弁当箱のような密閉容
器の開閉自在な蓋部に取り付けられ、密閉容器の負圧状
態を自動的に外部と均圧化する密閉容器の自動均圧弁装
置に関するものである。BACKGROUND OF THE INVENTION The present invention relates to an automatic pressure equalizing valve for a closed container which is attached to an openable and closable lid of a closed container such as a lunch box and automatically equalizes a negative pressure state of the closed container with the outside. It concerns the device.
【０００２】[0002]
【従来の技術】弁当箱のように中に入れた食品の温度が
下がって内部が外部に対して負圧になり、蓋が開け難く
なるのを防ぐために、密閉容器の開閉自在な蓋部に取り
付けられて密閉容器の負圧状態を自動的に外部と均圧に
する弁装置が種々提案されている。例えば、蓋に通気孔
を開設するとともに、この通気孔を内側から塞ぐ可撓性
素材からなる閉塞片の上部に押ボタンを一体に突設し、
この押ボタンと閉塞片への連絡部に該当する部位には押
ボタンによる閉塞片の変形時に容器本体内を外気と連通
させるための通気孔を形成してなる弁体が開示されてい
る（実公昭５９−４３２３８号公報参照）。しかし、こ
の弁体を備えた弁装置は、密閉容器内外の圧力を均一化
するには押ボタンを指で押すことが必要であることに加
え、通気孔に挿入された可撓性素材の弁体は可撓性があ
るために通気孔に挿入できるものであるが、挿入後に力
のかかり方によっては逆に抜け落ちるという欠点があっ
た。2. Description of the Related Art In order to prevent the temperature of food inside from dropping as in a lunch box and the inside becomes negative pressure with respect to the outside and the lid is difficult to open, a closed container that can be opened and closed is provided. Various valve devices have been proposed that are attached to automatically equalize the negative pressure state of the closed container with the outside. For example, a vent is formed in the lid, and a push button is integrally provided on an upper portion of a closing piece made of a flexible material for closing the vent from the inside,
A valve element is disclosed in which a vent hole for communicating the inside of the container body with the outside air when the obstruction piece is deformed by the push button is formed at a portion corresponding to a communication portion between the push button and the obstruction piece (actually). See JP-B-59-43238). However, the valve device provided with this valve element requires not only a push button to be pressed with a finger to equalize the pressure inside and outside the sealed container, but also a valve made of a flexible material inserted into the vent hole. Although the body is flexible and can be inserted into the ventilation hole, it has a drawback that it may fall off depending on how the force is applied after insertion.
【０００３】また、押ボタンによる操作が不要で、蓋ま
たは容器を押圧することにより負圧にすることができる
逆止弁を備えた減圧シール容器が提案されている（特開
平３−６９４６７号公報参照）。この容器は、蓋および
容器本体を押圧すると、パッキンが圧縮され、容器内の
空気の一部が通気孔を通じて外部に排出され、押圧を止
めれば、パッキン、蓋および容器本体が復元せんとする
際に逆止弁が働いて外部よりの空気の流入を閉塞して容
器は負圧となり、容器の内外圧力差によって蓋および容
器本体がパッキンを介して密着し容器は密閉され、逆止
弁を持ち上げれば容器内の負圧が解除されて蓋が開放さ
れるようになっている。Further, there has been proposed a pressure-reducing seal container provided with a check valve which does not require an operation by a push button and can make a negative pressure by pressing a lid or a container (JP-A-3-69467). reference). In this container, when the lid and the container body are pressed, the packing is compressed, a part of the air in the container is discharged to the outside through the ventilation hole, and when the pressing is stopped, the packing, the lid and the container body are restored. The check valve works to block the inflow of air from outside and the container becomes negative pressure, and the pressure difference between the inside and outside of the container causes the lid and the container body to come in close contact through the packing, the container is sealed, and the check valve is lifted. Then, the negative pressure in the container is released and the lid is opened.
【０００４】[0004]
【考案が解決しようとする課題】しかし、この減圧シー
ル容器は、逆止弁が動作することによって外部の空気を
遮断でき食品を安定的に保存できる利点を有している
が、蓋を開放するには逆止弁を持ち上げる必要があるこ
とから、薄肉の逆止弁が傷み易く、特に周縁部がちぎれ
て密閉効果がなくなり逆止弁が機能しなくなるという不
具合があった。また、逆止弁は傘状であるために、本体
部が蓋の上面より突出するとともに突起を含む軸が蓋の
下面より突出している。蓋はこの突出部分があるために
面一にならないことから、蓋を洗うときに邪魔になるう
え長期の使用で損傷し、軸がちぎれて使用できなくなる
といった問題も残されていた。However, this pressure-reducing seal container has an advantage that the air can be shut off by operating the check valve and the food can be stably stored, but the lid is opened. However, since the check valve needs to be lifted, the thin check valve is apt to be damaged. In particular, there is a problem that the peripheral portion is torn and the sealing effect is lost and the check valve does not function. Further, since the check valve has an umbrella shape, the main body portion protrudes from the upper surface of the lid, and a shaft including the protrusion protrudes from the lower surface of the lid. Since the lid cannot be flushed due to the protruding portion, there is still a problem that the lid is obstructed when the lid is washed, is damaged by long-term use, and the shaft is broken and cannot be used.
【０００５】本考案は、上記課題を解決することを目的
としている。An object of the present invention is to solve the above problems.
【０００６】[0006]
【課題を解決するための手段】本考案においては、上記
課題を解決するため、密閉容器の合成樹脂製の蓋部に形
成された空気孔と、この空気孔に挿嵌される弁体とから
なり、密閉容器の内圧が所定負圧以下のとき開く密閉容
器の自動均圧弁装置において、前記空気孔の周壁の高さ
方向中段に環状凸部を形成し、前記弁体が弁本体部とパ
ッキング部との２分割体からなり、弁本体部が頂盤部と
軸部およびこの軸部よりも略大径の係止部を備えて硬質
樹脂材により形成され、パッキング部が段付筒体で上部
小径部と下部大径部とを備えて軟弾性材料により形成さ
れ、前記弁本体部を蓋部の上方から空気孔に挿入し、前
記パッキング部を蓋部の下方から空気孔に挿入してパッ
キング部の嵌合孔に弁本体部の軸部を嵌合させたとき、
環状凸部の上面側に頂盤部の下面周縁が当接するととも
に、頂盤部の上面が蓋部の外側面と面一になる一方、パ
ッキング部の上部小径部と環状凸部の周壁との間には少
間隙が設けられ、また環状凸部の下面側に下部大径部の
上面が略接触するとともに、下部大径部の下面と蓋部の
内側面とが面一に保たれており、前記密閉容器が所定負
圧以下になると前記下部大径部の周縁が下方に変形して
前記空気孔と弁体との間に空気通路が形成され、前記蓋
部内外が連通するように構成されてなることを特徴とす
る。According to the present invention, in order to solve the above-mentioned problems, an air hole formed in a synthetic resin lid portion of a closed container and a valve inserted into the air hole are provided. In the automatic equalizing valve device for a closed container that opens when the internal pressure of the closed container is equal to or lower than a predetermined negative pressure, an annular convex portion is formed in a middle portion in a height direction of a peripheral wall of the air hole, and the valve body is packed with a valve body. The valve body is made of a hard resin material with a top portion, a shaft portion and a locking portion having a diameter substantially larger than the shaft portion, and the packing portion is a stepped cylindrical body. It is formed of a soft elastic material having an upper small diameter portion and a lower large diameter portion, and the valve body is inserted into the air hole from above the lid, and the packing portion is inserted into the air hole from below the lid. When the shaft of the valve body is fitted into the fitting hole of the packing,
The lower peripheral edge of the top portion abuts on the upper surface side of the annular convex portion, and the upper surface of the top portion is flush with the outer surface of the lid portion, while the upper small diameter portion of the packing portion and the peripheral wall of the annular convex portion are in contact with each other. A small gap is provided between them, and the upper surface of the lower large-diameter portion substantially contacts the lower surface side of the annular convex portion, and the lower surface of the lower large-diameter portion and the inner surface of the lid are kept flush. When the pressure of the closed container becomes equal to or lower than a predetermined negative pressure, the periphery of the lower large-diameter portion is deformed downward to form an air passage between the air hole and the valve body, and the inside and outside of the lid communicate with each other. It is characterized by being done.
【０００７】[0007]
【作用】本考案は上記構成により、弁体が弁本体部とパ
ッキング部との２分割体からなり、弁体を蓋部の上方か
ら空気孔に挿入し、パッキング部を蓋部の下方から空気
孔に挿入してパッキング部の嵌合孔に弁本体部の軸部を
嵌合させると空気孔に弁体が挿嵌されるので、組み付け
が簡単である。また、弁体が組み付けられた状態では、
頂盤部の上面が蓋部の外側面と面一となり、下部大径部
の下面と蓋部の内側面とが面一に保たれるので、蓋部の
上下には突起物が存在しないから、蓋部を支障なく洗う
ことができるうえ、洗浄に際しては弁体を外す必要もな
いから、取扱いも容易である。According to the present invention, the valve body is composed of a two-part body composed of a valve body and a packing part. The valve body is inserted into the air hole from above the lid part, and the packing part is air-filled from below the lid part. When the valve body is inserted into the hole and the shaft of the valve main body is fitted into the fitting hole of the packing portion, the valve body is inserted into the air hole, so that the assembly is simple. When the valve is assembled,
Since the upper surface of the top portion is flush with the outer surface of the lid, and the lower surface of the lower large-diameter portion and the inner surface of the lid are flush with each other, there are no protrusions above and below the lid. The lid can be washed without hindrance, and the valve body does not need to be removed for washing, so that the handling is easy.
【０００８】さらに、従来品のように弁体の構成部が突
出していない点に加えて、軟弾性材料により形成された
パッキング部は、同一肉厚となっているので、使用に際
してちぎれたり亀裂するといった問題が回避され、弁体
が傷む問題も解消される。Further, in addition to the fact that the constituent parts of the valve element do not protrude as in the conventional product, the packing part formed of a soft elastic material has the same thickness, so that it is torn or cracked during use. Such a problem is avoided, and the problem that the valve body is damaged is also solved.
【０００９】そして、加熱した食品を密閉容器に入れて
蓋部で密閉し、これが冷えて密閉容器の内部が負圧にな
ると、パッキング部の下部大径部の周縁が下方に軟弾性
変形して、前記空気孔と弁体との間に空気通路を形成し
て蓋部内外を連通させる。このため、密閉容器の負圧が
解消される。[0009] Then, the heated food is put in a closed container and sealed with a lid. When the inside of the closed container is cooled to a negative pressure, the periphery of the lower large-diameter portion of the packing portion is soft elastically deformed downward. An air passage is formed between the air hole and the valve body to communicate the inside and outside of the lid. Therefore, the negative pressure of the closed container is eliminated.
【００１０】[0010]
【実施例】以下、本考案の一実施例について、図を参照
しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【００１１】図１は、本考案に係る密閉容器の自動均圧
弁装置の平面図である。FIG. 1 is a plan view of an automatic pressure equalizing valve device for a closed container according to the present invention.
【００１２】この密閉容器の自動均圧弁装置は、弁当箱
に適用されるもので、食品を入れる図示しない容器本体
の蓋部１に自動均圧弁として弁体５を取り付ける構成と
なっている。This automatic pressure equalizing valve device for a closed container is applied to a lunch box, and has a structure in which a valve body 5 is mounted as an automatic pressure equalizing valve on a lid 1 of a container body (not shown) for storing food.
【００１３】前記蓋部１は合成樹脂製で、図１に示すよ
うに、両側部に配設した係止部材２が容器本体に設けら
れた係止受部に係脱自在に係合するようになっている。
そして、この蓋部１の一端部近傍には、円形の空気孔３
が開設されている。なお、この空気孔３の周囲は、図３
に示す如く他よりも厚さを増して厚みＷを４．５mmとし
ており、この空気孔３に環状凸部４を形成している。こ
の環状凸部４は、空気孔３の周壁３ａの高さ方向中段に
形成され、この空気孔３の内径Ｖ1 が１２．１mmである
のに対し環状凸部４の内径Ｖ2 を９．２mmとしている。The lid 1 is made of a synthetic resin. As shown in FIG. 1, the locking members 2 provided on both sides are removably engaged with locking receiving portions provided on the container body. It has become.
A circular air hole 3 is provided near one end of the lid 1.
Has been established. The periphery of the air hole 3 is shown in FIG.
As shown in FIG. 2, the thickness W is increased to 4.5 mm and the thickness W is set to 4.5 mm, and an annular convex portion 4 is formed in the air hole 3. The annular convex portion 4 is formed at the middle of the peripheral wall 3a of the air hole 3 in the height direction. The inner diameter V1 of the air hole 3 is 12.1 mm, while the inner diameter V2 of the annular convex portion 4 is 9.2 mm. I have.
【００１４】前記弁体５は、弁本体部６とパッキング部
７との２分割体からなり、嵌め合いにより一体化できる
ようになっている。弁本体部６は、図２および図４に示
す如く頂盤部８と軸部９および係止部１０を備えて硬質
樹脂材により形成され、高さＴ1 が前記蓋部１の厚さと
同一の４．５mmになっている。The valve body 5 is composed of a two-part body composed of a valve body 6 and a packing 7, and can be integrated by fitting. As shown in FIGS. 2 and 4, the valve body 6 is provided with a top portion 8, a shaft portion 9 and a locking portion 10 and is formed of a hard resin material. The height T1 is the same as the thickness of the lid portion 1. 4.5 mm.
【００１５】頂盤部８は、厚さＴ2 が１．０mm、外径Ｗ
1 が１２．０mmで空気孔３の内径よりも僅かに小径とし
ている。この頂盤部８の下面中央には、外径Ｗ2 が３．
０mmの軸部９が突設されている。また、この軸部９下端
部には、厚さＴ3 が１．５mmで、外径Ｗ3 が５．０mmの
係止部１０が一体形成されている。なお、この係止部１
０の周縁には、丸みを設けてパッキング部７の挿入を容
易にしている。The top part 8 has a thickness T2 of 1.0 mm and an outer diameter W
1 is 12.0 mm, which is slightly smaller than the inner diameter of the air hole 3. In the center of the lower surface of the top part 8, the outer diameter W2 is 3.
A shaft portion 9 of 0 mm protrudes. An engaging portion 10 having a thickness T3 of 1.5 mm and an outer diameter W3 of 5.0 mm is integrally formed at the lower end of the shaft portion 9. In addition, this locking part 1
The periphery of 0 is rounded to facilitate the insertion of the packing portion 7.
【００１６】このパッキング部７は、図２および図５に
示すように、嵌合孔７ａと凹所７ｂとを有する段付筒体
で軟弾性材料により形成されている。また、このパッキ
ング部７は、外周に上部小径部１１と下部大径部１２と
を設けており、高さＴ4 を４．５mmとしている。As shown in FIGS. 2 and 5, the packing 7 is a stepped cylinder having a fitting hole 7a and a recess 7b, and is formed of a soft elastic material. The packing 7 has an upper small-diameter portion 11 and a lower large-diameter portion 12 on the outer periphery, and has a height T4 of 4.5 mm.
【００１７】上部小径部１１は、厚さＴ5 が１．４mm、
外径Ｗ4 が９．０mmで環状凸部４の内径よりも僅かに小
径とされている。なお、この上部小径部１１の周縁には
丸みを設けてパッキング部７の挿入を容易にしている。
前記下部大径部１２は、厚さＴ6 が２．１mm、外径Ｗ5
が１２mmで、空気孔３の内径よりも僅かに小径とされて
いる。The upper small diameter portion 11 has a thickness T5 of 1.4 mm,
The outer diameter W4 is 9.0 mm, which is slightly smaller than the inner diameter of the annular projection 4. The periphery of the upper small-diameter portion 11 is rounded to facilitate the insertion of the packing portion 7.
The lower large diameter portion 12 has a thickness T6 of 2.1 mm and an outer diameter W5.
Is 12 mm, which is slightly smaller than the inner diameter of the air hole 3.
【００１８】しかして、この弁体５を蓋部１に挿嵌する
際は、前記弁本体部６を蓋部１の上方から空気孔３に挿
入し、パッキング部７を蓋部１の下方から空気孔３に挿
入してパッキング部７の嵌合孔７ａに弁本体部６の軸部
９を嵌合させる。すると、図２および図３に示すよう
に、パッキング部７の凹所７ｂに係止部１０が係止さ
れ、弁本体部６とパッキング部７とが環状凸部４を挟み
付けた状態で空気孔３内に挿嵌される。When the valve element 5 is inserted into the lid 1, the valve body 6 is inserted into the air hole 3 from above the lid 1, and the packing 7 is inserted from below the lid 1. The shaft 9 of the valve body 6 is fitted into the fitting hole 7a of the packing part 7 by being inserted into the air hole 3. Then, as shown in FIG. 2 and FIG. 3, the locking portion 10 is locked in the recess 7 b of the packing portion 7, and the valve body portion 6 and the packing portion 7 sandwich the annular convex portion 4 with air. It is inserted into the hole 3.
【００１９】このとき、頂盤部８の外周面と上部側周壁
３ａとの間には、少間隙が設けられるので空気通路Ｇ1
が形成される。また、蓋部１が合成樹脂製であり、弁本
体部６も硬質樹脂材により形成されていて、成形時の歪
みにより各部の面が真平面になっていないことから、当
接面である環状凸部４の上面４ｂと頂盤部８の下面８ｂ
との間には、微小間隙が生じて空気の流通が可能な状態
となる。また、パッキング部７の上部小径部１１の外周
面と環状凸部４の周壁４ａとの間には、少間隙が設けら
れるので空気通路Ｇ2 が形成される。また、環状凸部４
の下面４ｃに下部大径部１２の上面１２ａが略接触し、
下部大径部１２の外周面と空気孔３の下部側周壁３ｂと
の間に少間隙が設けられるので空気通路Ｇ3 が形成され
る。At this time, a small gap is provided between the outer peripheral surface of the top portion 8 and the upper peripheral wall 3a, so that the air passage G1 is provided.
Is formed. Further, the lid 1 is made of a synthetic resin, the valve body 6 is also formed of a hard resin material, and the surface of each part is not a true plane due to distortion during molding. Upper surface 4b of projection 4 and lower surface 8b of top plate 8
And a small gap is created between them to allow air to flow. Since a small gap is provided between the outer peripheral surface of the upper small diameter portion 11 of the packing portion 7 and the peripheral wall 4a of the annular convex portion 4, an air passage G2 is formed. In addition, the annular convex portion 4
The upper surface 12a of the lower large diameter portion 12 substantially contacts the lower surface 4c of the
Since a small gap is provided between the outer peripheral surface of the lower large diameter portion 12 and the lower peripheral wall 3b of the air hole 3, an air passage G3 is formed.
【００２０】そして、頂盤部８の上面８ａが蓋部１の外
側面１ａと面一になる一方、下部大径部１２の下面１２
ｂと蓋部１の内側面１ｂとが面一に保たれる。The upper surface 8a of the top 8 is flush with the outer surface 1a of the lid 1, while the lower surface 12
b and the inner surface 1b of the lid 1 are kept flush.
【００２１】このように、上記弁体５は弁本体部６とパ
ッキング部７との２分割体からなり、弁体５を蓋部１の
上方よりパッキング部７を下方から空気孔３に挿入して
このパッキング部７と弁本体部６とを嵌合して空気孔３
に挿嵌するので、組み付けが簡単である。また、この弁
体５が組み付けられた状態では、蓋部１の外側面１ａと
頂盤部８の上面８ａ、蓋部１の内側面１ｂと下部大径部
１２の下面１２ｂおよび係止部１０の下面１０ａがそれ
ぞれ面一となるので、蓋部１の上下には突起物が存在し
ないから、蓋部１を支障なく洗うことができるうえ、洗
浄に際しては弁体５を外す必要もないから、取扱いも容
易である。As described above, the valve element 5 is composed of a two-part body composed of the valve body 6 and the packing section 7. The valve element 5 is inserted into the air hole 3 from above the lid 1 with the packing section 7 from above. The lever packing part 7 and the valve body part 6 are fitted to each other to form the air hole 3.
, So that assembly is easy. When the valve element 5 is assembled, the outer surface 1a of the lid 1 and the upper surface 8a of the top plate 8, the inner surface 1b of the lid 1, the lower surface 12b of the lower large-diameter portion 12, and the locking portion 10 Since the lower surfaces 10a are flush with each other, there are no protrusions above and below the lid 1, so that the lid 1 can be washed without hindrance, and the valve body 5 does not need to be removed for cleaning. Handling is easy.
【００２２】さらに、従来品のように弁体５の構成部が
突出していない点に加えて、軟弾性材料により形成され
たパッキング部７は、同一肉厚となっているので、使用
に際してちぎれたり亀裂するといった問題が回避され、
弁体５が傷む問題も解消される。Further, in addition to the fact that the constituent parts of the valve element 5 do not protrude as in the conventional product, the packing part 7 made of a soft elastic material has the same thickness, so that the packing part 7 is torn in use. The problem of cracking is avoided,
The problem that the valve body 5 is damaged is also eliminated.
【００２３】そして、上記弁体５を用いた密閉容器に加
熱した食品を入れて蓋部１で密閉し、これが冷えて密閉
容器の内部が負圧になると、図２の鎖線で示す如く下部
大径部１２の下面１２ｂの周縁が下方に軟弾性変形して
蓋部１から離れる。すると、前記空気通路Ｇ1,Ｇ2,Ｇ3
が全て連通するため、前記空気孔３と弁体５との間に空
気が流通するので、蓋部１の内外が連通して密閉容器の
負圧が解消されるものである。Then, the heated food is put into a closed container using the valve body 5 and sealed with the lid 1. When the inside of the closed container is cooled to a negative pressure as shown by a chain line in FIG. The periphery of the lower surface 12b of the diameter portion 12 is softly elastically deformed downward and separates from the lid 1. Then, the air passages G1, G2, G3
Are communicated with each other, so that air flows between the air hole 3 and the valve body 5, so that the inside and outside of the lid 1 communicate with each other, thereby eliminating the negative pressure of the closed container.
【００２４】次に、他の実施例について説明する。Next, another embodiment will be described.
【００２５】図７は本実施例に係る密閉容器の自動均圧
弁装置の断面図である。FIG. 7 is a sectional view of an automatic pressure equalizing valve device for a closed vessel according to this embodiment.
【００２６】この自動均圧弁装置は、空気孔３に形成さ
れた環状凸部４に突起４ｄを設けるとともに、テーパ面
４ｅを形成して弁体５０を構成するもので、他は上記実
施例と基本的構成が略同一であり、従って同一部分の詳
細な説明は省略する。In this automatic pressure equalizing valve device, a projection 4d is provided on an annular convex portion 4 formed in an air hole 3 and a tapered surface 4e is formed to constitute a valve body 50. Since the basic configuration is substantially the same, a detailed description of the same portion will be omitted.
【００２７】前記突起４ｄは、図８および図９に示すよ
うに、環状凸部４の上面４ｂにおいて、空気孔３を４等
分した位置に４個が突設されている。また、テーパ面４
ｅは、環状凸部４の下面４ｃ側に形成されている。As shown in FIGS. 8 and 9, four projections 4d are provided on the upper surface 4b of the annular projection 4 at positions where the air holes 3 are equally divided into four. Also, the tapered surface 4
e is formed on the lower surface 4c side of the annular convex portion 4.
【００２８】これにより、環状凸部４を挟み付けた状態
で空気孔３内に弁本体部６とパッキング部７とが挿嵌さ
れると、図７に示すように、環状凸部４の上面４ｂに突
起４ｄを設けているので、環状凸部４の上面４ｂと頂盤
部８の下面８ｂとの間には、間隙Ｇが生じる。また、環
状凸部４のテーパ面４ｅにパッキング部７の下部大径部
１２が略接触したとき、当接部は線接触となる。As a result, when the valve body 6 and the packing portion 7 are inserted into the air holes 3 with the annular convex portion 4 sandwiched therebetween, as shown in FIG. Since the projections 4d are provided on 4b, a gap G is formed between the upper surface 4b of the annular convex portion 4 and the lower surface 8b of the top portion 8. When the lower large-diameter portion 12 of the packing portion 7 substantially contacts the tapered surface 4e of the annular convex portion 4, the contact portion comes into line contact.
【００２９】従って、上記弁体５０を用いた密閉容器に
加熱した食品を入れて蓋部１で密閉し、これが冷えて密
閉容器の内部が負圧になると、図７の鎖線で示す如く下
部大径部１２の下面１２ｂの周縁が下方に軟弾性変形し
て蓋部１から離れる。このとき、当接部は線接触となっ
ているので、下面１２ｂの離脱は容易である。これに伴
って、前記空気通路Ｇ1,ＧおよびＧ2,Ｇ3 が全て連通す
るため、前記空気孔３と弁体５０との間に空気が流通
し、蓋部１の内外が連通して密閉容器の負圧が容易に解
消される。Therefore, the heated food is put in a closed container using the valve body 50 and sealed by the lid 1. When the inside of the closed container is cooled to a negative pressure as shown in FIG. The periphery of the lower surface 12b of the diameter portion 12 is softly elastically deformed downward and separates from the lid 1. At this time, since the contact portion is in line contact, the lower surface 12b can be easily separated. Accordingly, the air passages G1, G and G2, G3 all communicate with each other, so that air flows between the air hole 3 and the valve body 50, and the inside and outside of the lid portion 1 communicate with each other to form a closed container. The negative pressure is easily eliminated.
【００３０】[0030]
【考案の効果】以上のように本考案は、弁体が弁本体部
とパッキング部との２分割体からなりパッキング部の嵌
合孔に弁本体部の軸部を嵌合させると空気孔に弁体が挿
嵌されるので、組み付けが簡単である。また、弁体が組
み付けられた状態では、弁体の上下面と蓋部の内外面と
が面一に保たれるので、蓋部の上下には突起物が存在し
ないから、蓋部を支障なく洗うことができる。そして、
洗浄に際しては弁体を外す必要もないから、取扱いも容
易である。As described above, according to the present invention, the valve body is formed of a two-piece body consisting of the valve body and the packing, and the air hole is formed when the shaft of the valve body is fitted into the fitting hole of the packing. Since the valve body is inserted, assembly is easy. Further, in a state where the valve body is assembled, since the upper and lower surfaces of the valve body and the inner and outer surfaces of the lid are kept flush, there are no protrusions above and below the lid, so that the lid is not hindered. Can be washed. And
Since there is no need to remove the valve body during cleaning, handling is easy.
【００３１】さらに、従来品のように弁体の構成部が突
出していない点に加えて、軟弾性材料のパッキング部
は、同一肉厚により形成されるので、使用に際してちぎ
れたり亀裂するといった弁体が傷む問題が回避され、長
期の使用に耐え得るといった効果がある。Further, in addition to the fact that the components of the valve body do not protrude as in the conventional product, the packing portion of the soft elastic material is formed with the same thickness, so that the valve body may be torn or cracked during use. This has the effect of avoiding the problem of damage to the material and of being able to withstand long-term use.
【図１】本考案の実施例に係る弁体を取り付けた蓋部の
平面図である。FIG. 1 is a plan view of a lid to which a valve body according to an embodiment of the present invention is attached.
【図２】密閉容器の自動均圧弁装置の断面図である。FIG. 2 is a cross-sectional view of an automatic pressure equalizing valve device for a closed container.
【図３】密閉容器の蓋部の断面図である。FIG. 3 is a sectional view of a lid portion of the closed container.
【図４】弁体の弁本体部の断面図である。FIG. 4 is a sectional view of a valve body of the valve body.
【図５】弁体のパッキング部の断面図である。FIG. 5 is a sectional view of a packing portion of the valve body.
【図６】弁本体部とパッキング部とが嵌合された弁体の
平面図である。FIG. 6 is a plan view of the valve body in which the valve body and the packing are fitted.
【図７】本考案の他の実施例に係る密閉容器の自動均圧
弁装置の断面図である。FIG. 7 is a sectional view of an automatic pressure equalizing valve device for a closed container according to another embodiment of the present invention.
【図８】同密閉容器の蓋部の断面図である。FIG. 8 is a cross-sectional view of a lid of the closed container.
【図９】同密閉容器の蓋部の平面図である。FIG. 9 is a plan view of a lid of the closed container.
１ 蓋部 ３ 空気孔 ４ 環状凸部 ５ 弁体 ６ 弁本体部 ７ パッキング部 ８ 頂盤部 ９ 軸部 １０ 係止部 １１ 上部小径部 １２ 下部大径部 DESCRIPTION OF SYMBOLS 1 Cover part 3 Air hole 4 Annular convex part 5 Valve body 6 Valve main body part 7 Packing part 8 Top part 9 Shaft part 10 Locking part 11 Upper small diameter part 12 Lower large diameter part
Claims (1)
た空気孔と、この空気孔に挿嵌される弁体とからなり、
密閉容器の内圧が所定負圧以下のとき開く密閉容器の自
動均圧弁装置において、 前記空気孔の周壁の高さ方向中段に環状凸部を形成し、
前記弁体が弁本体部とパッキング部との２分割体からな
り、弁本体部が頂盤部と軸部およびこの軸部よりも略大
径の係止部を備えて硬質樹脂材により形成され、パッキ
ング部が段付筒体で上部小径部と下部大径部とを備えて
軟弾性材料により形成され、前記弁本体部を蓋部の上方
から空気孔に挿入し、前記パッキング部を蓋部の下方か
ら空気孔に挿入してパッキング部の嵌合孔に弁本体部の
軸部を嵌合させたとき、環状凸部の上面側に頂盤部の下
面周縁が当接するとともに、頂盤部の上面が蓋部の外側
面と面一になる一方、パッキング部の上部小径部と環状
凸部の周壁との間には少間隙が設けられ、また環状凸部
の下面側に下部大径部の上面が略接触するとともに、下
部大径部の下面と蓋部の内側面とが面一に保たれてお
り、前記密閉容器が所定負圧以下になると前記下部大径
部の周縁が下方に変形して前記空気孔と弁体との間に空
気通路が形成され、前記蓋部内外が連通するように構成
されてなることを特徴とする密閉容器の自動均圧弁装
置。1. An air hole formed in a synthetic resin lid of a closed container, and a valve plug inserted into the air hole,
In an automatic equalizing valve device for a closed container that opens when the internal pressure of the closed container is equal to or lower than a predetermined negative pressure, an annular convex portion is formed at a height-wise middle portion of the peripheral wall of the air hole,
The valve body is formed of a two-piece body consisting of a valve body and a packing, and the valve body is formed of a hard resin material having a top portion, a shaft portion, and a locking portion having a diameter substantially larger than the shaft portion. A packing portion formed of a soft elastic material having an upper small-diameter portion and a lower large-diameter portion in a stepped cylindrical body, inserting the valve body portion into the air hole from above the lid portion, and attaching the packing portion to the lid portion; When the shaft of the valve body is fitted into the fitting hole of the packing part by inserting it into the air hole from below, the lower peripheral edge of the top part abuts on the upper surface side of the annular convex part and the top part The upper surface is flush with the outer surface of the lid portion, while a small gap is provided between the upper small diameter portion of the packing portion and the peripheral wall of the annular convex portion, and the lower large diameter portion is provided on the lower surface side of the annular convex portion. And the lower surface of the large-diameter portion and the inner surface of the lid are kept flush, and the closed container is When the pressure is equal to or lower than the constant negative pressure, the periphery of the lower large-diameter portion is deformed downward to form an air passage between the air hole and the valve body, and the inside and outside of the lid communicate with each other. Characteristic automatic pressure equalizing valve device for closed containers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6323391U JP2543258Y2 (en) | 1991-08-09 | 1991-08-09 | Automatic pressure equalizing valve for closed containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6323391U JP2543258Y2 (en) | 1991-08-09 | 1991-08-09 | Automatic pressure equalizing valve for closed containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0526860U JPH0526860U (en) | 1993-04-06 |
| JP2543258Y2 true JP2543258Y2 (en) | 1997-08-06 |
Family
ID=13223297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6323391U Expired - Fee Related JP2543258Y2 (en) | 1991-08-09 | 1991-08-09 | Automatic pressure equalizing valve for closed containers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543258Y2 (en) |
-
1991
- 1991-08-09 JP JP6323391U patent/JP2543258Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526860U (en) | 1993-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |