JPH07233875A - Packing valve used in fluid passage and manufacture thereof - Google Patents
Packing valve used in fluid passage and manufacture thereofInfo
- Publication number
- JPH07233875A JPH07233875A JP6025240A JP2524094A JPH07233875A JP H07233875 A JPH07233875 A JP H07233875A JP 6025240 A JP6025240 A JP 6025240A JP 2524094 A JP2524094 A JP 2524094A JP H07233875 A JPH07233875 A JP H07233875A
- Authority
- JP
- Japan
- Prior art keywords
- packing
- plastic material
- valve
- molded
- valve body
- 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.)
- Pending
Links
Landscapes
- Lift Valve (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エア・水のような流体
通路に用いられるパッキング弁及びその製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing valve used for a fluid passage such as air and water and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】エアダクトのような空気通路の開閉に
は、図９に示すような全体を符号２０で示すパッキング
弁が用いられる。このパッキング弁２０は、上縁部に１
対の支柱２２を突設した本体２１の周縁部に、例えばウ
レタンフォームなどのフレキシブルプラスチック材のパ
ッキング部２３を接着して構成されている。2. Description of the Related Art To open and close an air passage such as an air duct, a packing valve shown in FIG. This packing valve 20 has one on the upper edge.
A packing portion 23 made of a flexible plastic material such as urethane foam is adhered to the peripheral edge portion of the main body 21 on which the pair of support columns 22 are projected.
【０００３】[0003]
【発明が解決しようとする課題】従来のパッキング弁２
０においては、フレキシブルプラスチック材をカット
し、両面接着紙により本体２１の周縁部に沿って人手に
より貼り付けている。したがって、周縁部に均一に貼れ
ないで曲がってしまう、切れ目が隙間となり、空気がも
れる、接着がはがれる、工程数が多くてコストが高い、
パッキング部２３の耐熱性や耐油性に問題があるなどの
不具合がある。DISCLOSURE OF THE INVENTION Conventional packing valve 2
In No. 0, the flexible plastic material is cut and manually attached along the peripheral edge of the main body 21 with double-sided adhesive paper. Therefore, it is bent without being evenly attached to the peripheral edge, the gap becomes a gap, air is leaked, the adhesive is peeled off, the number of steps is large and the cost is high.
There is a problem such as a problem in heat resistance and oil resistance of the packing portion 23.
【０００４】本発明は、密閉性が良く加工が容易で耐熱
性、耐油性が良く信頼性のあるパッキング弁及びその製
造方法を提供することを目的としている。An object of the present invention is to provide a packing valve which has a good sealing property, is easy to process, has good heat resistance and oil resistance, and is reliable, and a manufacturing method thereof.
【０００５】[0005]
【課題を解決するための手段】本発明によるパッキング
弁は、硬質プラスチック材で形成され周縁部に複数の係
合部が設けられ上縁部に１対の支柱が突設された弁本体
と、フレキシブルプラスチック材で形成され前記係合部
を係合して前記弁本体の周縁部を覆い外側方に延設され
たパッキング部とからなっている。A packing valve according to the present invention comprises a valve body formed of a hard plastic material and provided with a plurality of engaging portions at its peripheral portion and a pair of struts protruding from its upper edge portion. And a packing portion which is made of a flexible plastic material and which engages with the engaging portion to cover the peripheral portion of the valve body and extend outward.
【０００６】本発明によるパッキング弁の製造方法は、
周縁部に複数の透孔が穿設され上縁部の１対の支柱が突
設された弁本体を硬質プラスチック材で１次成形する１
次成形工程と、前記弁本体の透孔を埋め該弁本体の周縁
部を覆って外側方に伸びるパッキング部を耐熱性、耐油
性のあるフレキシブルプラスチック材で２次形成する２
次成形工程とを含むことを特徴としている。The method of manufacturing a packing valve according to the present invention is
Primary molding of a valve body with a hard plastic material, in which a plurality of through holes are formed in the peripheral edge portion and a pair of support posts at the upper edge portion are projectingly formed 1
Next molding step, and a packing part that fills the through hole of the valve body and covers the peripheral edge of the valve body and extends outward is secondarily formed from a flexible plastic material having heat resistance and oil resistance.
It is characterized by including a subsequent molding step.
【０００７】上記硬質プラスチック材には、例えばガラ
ス入りポリプロピレンを用いるのが好ましい。また係合
部は透孔を突設してもよく、或は突起で構成することも
できる。It is preferable to use, for example, polypropylene containing glass as the hard plastic material. Further, the engaging portion may be provided with a through hole or may be formed by a protrusion.
【０００８】また、耐熱性、耐油性のあるフレキシブル
プラスチック材には、例えばエラストマーを用いるのが
好ましい。For the flexible plastic material having heat resistance and oil resistance, it is preferable to use, for example, an elastomer.
【０００９】[0009]
【作用】本発明においては、パッキング部が本体に２次
成形により、一体に成形される。したがって、加工が容
易で密閉性がよい。また、パッキング部は本体の透孔に
入り込むので、はがれることがなく信頼性が高い。ま
た、パッキング部は、耐熱性、耐油性がよい。In the present invention, the packing portion is integrally formed on the main body by secondary molding. Therefore, the processing is easy and the sealing property is good. Further, since the packing portion is inserted into the through hole of the main body, it does not come off and has high reliability. Further, the packing part has good heat resistance and oil resistance.
【００１０】[0010]
【実施例】以下図面を参照して本発明の実施例を説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】図１ないし図３において、全体を符号１で
示すパッキング弁の本体２には、周縁部に係合部すなわ
ち図示の例では複数の透孔３が穿設され、上縁部には、
１対の支柱４が突設されている。この本体２の周縁部を
覆い外側方に延びるパッキング部５が設けられている。In FIGS. 1 to 3, a main body 2 of the packing valve, generally designated by reference numeral 1, is provided with an engaging portion, that is, a plurality of through holes 3 in the illustrated example, at its peripheral portion, and an upper edge portion. ,
A pair of columns 4 is provided so as to project. A packing portion 5 is provided which covers the peripheral portion of the main body 2 and extends outward.
【００１２】前記本体２は、例えばガラス入りポリプロ
ピレン等の硬質プラスチック材で形成されている。そし
て、パッキング部５は、例えばエラストマー等の耐熱
性、耐油性のあるフレキシブルプラスチック材で形成さ
れ、本体２の透孔３に埋め込まれている。The main body 2 is made of a hard plastic material such as glass-filled polypropylene. The packing portion 5 is formed of a flexible plastic material having heat resistance and oil resistance, such as an elastomer, and is embedded in the through hole 3 of the main body 2.
【００１３】次に、製造の態様を説明する。図４及び図
５には、成形の例とする全体を符号１０で示すパッキン
グ弁が示されている。このパッキング弁１０は、図１と
同様に本体１１とパッキング部１４から構成され、本体
１１には、１対の支柱１２が突設され、係合部である複
数の透孔１３が穿設されている。Next, the manufacturing mode will be described. 4 and 5 show a packing valve generally designated by the numeral 10 as an example of molding. The packing valve 10 is composed of a main body 11 and a packing portion 14 as in FIG. 1, and a pair of columns 12 are projectingly provided on the main body 11 and a plurality of through holes 13 which are engaging portions are formed therein. ing.
【００１４】このパッキング弁１０の本体１１の成形す
なわち１次成形は図６に示すように、１次キャビティ
Ａ、コアＢ及びバック用コアＣで形成される空間に、１
次キャビティＡの１次ゲートＡ１から硬質プラスチック
材を射出し、透孔１３を備えた本体１１を成形する。As shown in FIG. 6, molding of the main body 11 of the packing valve 10, that is, primary molding, is performed in a space formed by the primary cavity A, the core B and the back core C.
A hard plastic material is injected from the primary gate A1 of the next cavity A to mold the main body 11 having the through holes 13.
【００１５】次いで図７に示すように、２次キャビティ
Ｄをセットし、バック用コアＣを下げて２次キャビティ
Ｄとの間に画成される空間に、２次ゲートＤ１からフレ
キシブルプラスチック材を射出し、本体１１の周縁部に
パッキング部１４を２次成形し、パッキング弁１０を成
形する。Next, as shown in FIG. 7, the secondary cavity D is set, the back core C is lowered, and a flexible plastic material is inserted from the secondary gate D1 into the space defined between the secondary cavity D and the secondary cavity D. After injection, the packing portion 14 is secondarily molded on the peripheral portion of the main body 11 to mold the packing valve 10.
【００１６】したがって、パッキング部１４は本体１１
に一体成形され、かつ、透孔１３にくい込んでいるの
で、密着性がよく、はがれることがない。Therefore, the packing portion 14 is composed of the main body 11
Since it is integrally molded with the through hole 13 and is embedded in the through hole 13, it has good adhesion and does not peel off.
【００１７】また、パッキング弁１０の形状は、空気通
路の種々の成形に対応可能で、更に図８に示すように、
上縁部Ｅ１及び下縁部Ｅ２が湾曲している空気ダクトＥ
にも対応することができる。Further, the shape of the packing valve 10 can correspond to various shaping of the air passage, and as shown in FIG.
An air duct E whose upper edge E1 and lower edge E2 are curved
Can also be accommodated.
【００１８】[0018]
【発明の効果】以上説明したように本発明によれば、以
下に記載されるような効果を奏する。As described above, according to the present invention, the following effects can be obtained.
【００１９】（１） パッキング部が本体に一体成形さ
れるので、加工が容易ではがれることがなく、また、密
閉性がよい。(1) Since the packing part is integrally molded with the main body, it is easy to process and does not peel off, and the sealing property is good.
【００２０】（２） ２次成形に種々のプラスチック材
を選択することができ、耐熱性、耐油性等の品質を確保
できる。(2) Various plastic materials can be selected for the secondary molding, and quality such as heat resistance and oil resistance can be secured.
【００２１】（３） パッキング弁の形状が制約されな
いで、空気通路の角形、丸形、楕円形又は不定形等の形
状に対応することができ、更に、パッキング部の接触面
が湾曲している空気通路にも対応することができる。(3) The shape of the packing valve is not restricted, and the air passage can have a square, round, elliptical, or irregular shape, and the contact surface of the packing portion is curved. It can also be used as an air passage.
【図１】本発明の一実施例を示す斜視図。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】図１の要部の側断面図。FIG. 2 is a side sectional view of a main part of FIG.
【図３】図１の本体を示す斜視図。FIG. 3 is a perspective view showing the main body of FIG.
【図４】本発明の別の実施例を示す斜視図。FIG. 4 is a perspective view showing another embodiment of the present invention.
【図５】図４のＡ−Ａ矢視断面図。5 is a sectional view taken along the line AA of FIG.
【図６】１次成形工程を説明する断面図。FIG. 6 is a sectional view illustrating a primary molding process.
【図７】２次成形工程を説明する断面図。FIG. 7 is a sectional view illustrating a secondary molding process.
【図８】空気ダクトの一例を示す斜視図。FIG. 8 is a perspective view showing an example of an air duct.
【図９】従来のパッキング弁の一例を示す斜視図。FIG. 9 is a perspective view showing an example of a conventional packing valve.
Ａ・・・１次キャビティ Ａ１・・・１次ゲート Ｂ・・・コア Ｃ・・・バックコア Ｄ・・２次キャビティ Ｄ１・・・２次ゲート Ｅ・・・空気ダクト １、１０、２０・・・パッキング弁 ２、１１、２１・・・本体 ３、１３・・・透孔（係合部） ４、１２、２２・・・支柱 ５、１４、２３・・・パッキング部 A ... Primary cavity A1 ... Primary gate B ... Core C ... Back core D ... Secondary cavity D1 ... Secondary gate E ... Air duct 1, 10, 20, ... ..Packing valve 2, 11, 21 ... Main body 3, 13 ... Through hole (engaging portion) 4, 12, 22 ... Strut 5, 14, 23 ... Packing portion
Claims (2)
複数の係合部が設けられ上縁部に１対の支柱が突設され
た弁本体と、フレキシブルプラスチック材で形成され前
記係合部と係合して前記弁本体の周縁部を覆い外側方に
延設されたパッキング部とからなることを特徴とする流
体通路に用いられるパッキング弁。1. A valve body formed of a hard plastic material, provided with a plurality of engaging portions at its peripheral portion, and a pair of struts protruding from its upper edge portion; and the engaging portion formed of a flexible plastic material. A packing valve used in a fluid passage, comprising a packing part which is engaged with the peripheral part of the valve body and extends outward.
１対の支柱が突設された弁本体を硬質プラスチック材で
１次成形する１次成形工程と、前記弁本体の透孔を埋め
該弁本体の周縁部を覆って外側方に伸びるパッキング部
を耐熱性、耐油性のあるフレキシブルプラスチック材で
２次形成する２次成形工程とを含むことを特徴とするエ
ア通路に用いられるパッキング弁の製造方法。2. A primary molding step of primary molding a hard plastic material into a valve body having a plurality of through holes formed in a peripheral edge portion thereof and a pair of struts protruding from an upper edge portion thereof; And a secondary molding step of secondary forming a packing portion that fills the through hole and covers the peripheral portion of the valve body and extends outward with a flexible plastic material having heat resistance and oil resistance. The manufacturing method of the packing valve used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6025240A JPH07233875A (en) | 1994-02-23 | 1994-02-23 | Packing valve used in fluid passage and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6025240A JPH07233875A (en) | 1994-02-23 | 1994-02-23 | Packing valve used in fluid passage and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07233875A true JPH07233875A (en) | 1995-09-05 |
Family
ID=12160468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6025240A Pending JPH07233875A (en) | 1994-02-23 | 1994-02-23 | Packing valve used in fluid passage and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07233875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144915A (en) * | 2007-11-13 | 2009-07-02 | Snecma | Relief valve in turbomachine |
-
1994
- 1994-02-23 JP JP6025240A patent/JPH07233875A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009144915A (en) * | 2007-11-13 | 2009-07-02 | Snecma | Relief valve in turbomachine |
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