JPH0511299Y2 - - Google Patents
Info
- Publication number
- JPH0511299Y2 JPH0511299Y2 JP1987127640U JP12764087U JPH0511299Y2 JP H0511299 Y2 JPH0511299 Y2 JP H0511299Y2 JP 1987127640 U JP1987127640 U JP 1987127640U JP 12764087 U JP12764087 U JP 12764087U JP H0511299 Y2 JPH0511299 Y2 JP H0511299Y2
- Authority
- JP
- Japan
- Prior art keywords
- reed
- cloth
- lead
- reed valve
- polyimide film
- 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 - Lifetime
Links
- 235000014676 Phragmites communis Nutrition 0.000 claims description 49
- 229920001721 polyimide Polymers 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 150000003949 imides Chemical class 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 229920001646 UPILEX Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 244000273256 Phragmites communis Species 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- -1 etc. Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
Landscapes
- Check Valves (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はリードバルブに関し、特に、耐熱性を
向上したリードバルブに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a reed valve, and particularly to a reed valve with improved heat resistance.
一般に、２サイクルエンジン用リードバルブに
は、作動応答性等の点から樹脂系のリードが使用
されている。
Generally, a resin-based reed is used in a reed valve for a two-stroke engine from the viewpoint of operational response.
従来用いられている樹脂系のリード１０は、第
４図ａ，ｂに示す如く、ガラス繊維、カーボン繊
維等を平織りや朱子織りして布状とし、この布状
構造物をエポキシ系樹脂、イミド系樹脂等に含浸
してプリプレグを得た後、このプリプレグを複数
枚重ねて、加熱・加圧して板状にし、つぎにこの
板を所定の形状に打抜いて製造している。 As shown in FIGS. 4a and 4b, the conventionally used resin-based lead 10 is made into a cloth by plain weaving or satin weaving glass fibers, carbon fibers, etc., and this cloth-like structure is made of epoxy resin, imide resin, etc. After obtaining a prepreg by impregnating it with a system resin, a plurality of sheets of the prepreg are stacked, heated and pressurized to form a plate, and then the plate is punched into a predetermined shape.
しかしながら、特に、船外機用２サイクルエン
ジンでは、そのアイドリング時において、運転を
効率よくスムーズにするために本来の点火時期よ
りもタイミングを遅らせる場合があり、この時、
吸入工程まで燃焼が続く、所謂、バツクフアイア
現象が発生し、吸入ポート付近が高温となり、従
来の樹脂系のリードを用いるリードバルブにあつ
ては、リード部分が加熱されることにより、一部
溶解したり焼損してプリプレグ積層間の剥離を生
じてリードが破損したり、また、リードが熱変形
して着座面に対し反り返り、リードの先端と着座
面との間に隙間が発生し、リードバルブの機能を
果たさなくなるという問題点を有していた。 However, especially in two-stroke outboard engines, the ignition timing may be delayed from the original ignition timing during idling to ensure efficient and smooth operation.
A so-called backfire phenomenon occurs in which combustion continues until the suction process, and the area near the suction port becomes high temperature.For reed valves that use conventional resin-based reeds, the reed part is heated and partially melted. The reed may be damaged due to delamination between the prepreg laminations due to burnout, or the reed may be thermally deformed and warped against the seating surface, creating a gap between the tip of the reed and the seating surface, causing damage to the reed valve. This has the problem that it no longer functions properly.
本考案は前記のような従来のもののもつ問題点
を解決したものであつて、バツクフアイア現象に
よつても破損せず、また、着座面に対し反り返つ
て、リードの先端と着座面との間に隙間を生じる
ことがなく熱変形しないリードを有して、耐熱性
に優れたリードバルブを提供することを目的とす
るものである。 The present invention solves the above-mentioned problems of the conventional products, and is not damaged by the backfire phenomenon, and does not warp against the seating surface, causing the gap between the tip of the lead and the seating surface to It is an object of the present invention to provide a reed valve that has excellent heat resistance and has reeds that do not form gaps and are not thermally deformed.
上記の問題点を解決するために本考案は、圧力
差に応じて開閉するリードで流体を制御するリー
ドバルブにおいて、前記リードは、ガラス繊維、
カーボン繊維等の繊維からなる布状構造物または
該布状構造物をエポキシ樹脂、イミド系樹脂等に
含浸して得られるプリプレグからなるリード本体
と、このリード本体の表裏面に貼着されるポリイ
ミドフイルムとから構成されている手段を採用し
たものである。
In order to solve the above problems, the present invention provides a reed valve that controls fluid with a reed that opens and closes in response to a pressure difference.
A lead body made of a cloth-like structure made of fibers such as carbon fiber or a prepreg obtained by impregnating the cloth-like structure with epoxy resin, imide resin, etc., and polyimide attached to the front and back surfaces of this lead body. This method employs a method consisting of film.
本考案は上記の構成を採用したことにより、リ
ードの表面に耐熱性のポリイミドフイルムを設け
ることで、バツクフアイア現象によつて破損する
ことも、また、熱変形することもない、耐熱性に
優れたものとなる。
By adopting the above structure, the present invention provides a heat-resistant polyimide film on the surface of the lead, which has excellent heat resistance and will not be damaged by the backfire phenomenon or deformed by heat. Become something.
以下、図面に示す本考案の実施例について説明
する。
Embodiments of the present invention shown in the drawings will be described below.
第１図には本考案のリードバルブが示されてい
て、このリードバルブ１は、流体の流路となる連
通孔２を形成するとともにリード５の着座面とな
るゴム状弾性材からなる着座部材３を具えたケー
スコンプリート４に、リード本体５ａの表裏面に
ポリイミドフイルム５ｂが貼着されたリード５
と、ストツパ６とを取付けねじ７によつて取付け
て構成したものである。 FIG. 1 shows a reed valve of the present invention, and this reed valve 1 has a seating member made of a rubber-like elastic material that forms a communication hole 2 that serves as a fluid flow path and serves as a seating surface for a reed 5. A lead body 5a has a polyimide film 5b attached to the front and back surfaces of the lead body 5a.
and a stopper 6 are attached by means of mounting screws 7.
本考案において、前記リード本体５ａの表裏面
に貼着するポリイミドフイルム５ｂは、芳香族四
塩基酸と芳香族ジアミンとの縮重合によつて得ら
れる耐熱性ポリイミドをフイルム状に加工したも
のであり、カプトン（東レ・デユポン社製）、ア
ピカル（鐘淵化学工業社製）、ユーピレツクス
（宇部興産社製）等の商品名で知られるものが代
表的なものとして挙げられる。 In the present invention, the polyimide film 5b attached to the front and back surfaces of the lead body 5a is a heat-resistant polyimide obtained by polycondensation of an aromatic tetrabasic acid and an aromatic diamine and processed into a film shape. Representative examples include those known by trade names such as Kapton (manufactured by Toray DuPont), Apical (manufactured by Kanebuchi Kagaku Kogyo), and Upilex (manufactured by Ube Industries).
また、リード本体５ａは、リード５の応答性に
要求される弾性特性等を満足するものであれば基
本的にその材質に制限はないが、例えば、ガラス
繊維、カーボン繊維等の繊維を織る、編む等によ
り布状構造物としたもの、さらに、これらの布状
構造物をエポキシ樹脂、イミド系樹脂等に含浸し
てプリプレグを得た後、このプリプレグを一枚ま
たは複数枚重ねて、加熱・加圧して板状としたも
の等が挙げられる。 The material of the lead body 5a is basically not limited as long as it satisfies the elastic properties required for the responsiveness of the lead 5, but for example, it may be made of woven fibers such as glass fiber or carbon fiber. After making a cloth-like structure by knitting or the like, and then impregnating these cloth-like structures with epoxy resin, imide resin, etc. to obtain prepreg, one or more sheets of this prepreg are stacked and heated and heated. Examples include those made into a plate shape by applying pressure.
第２図には、本考案のリードバルブ１に用いら
れるリード５の第１の実施例が示されていて、第
２図ａは一部を切欠いた平面説明図、第２図ｂは
断面説明図であり、同図に示すリード５は、一枚
の布状構造物からなるリード本体５ａの両面にポ
リイミドフイルム５ｂを貼着したものである。 2 shows a first embodiment of the reed 5 used in the reed valve 1 of the present invention, FIG. 2a is a partially cutaway plan view, and FIG. 2b is a cross-sectional view. The lead 5 shown in the figure has a lead body 5a made of a single sheet of cloth-like structure and polyimide films 5b adhered to both sides of the lead body 5a.
上記リード５は、カーボン繊維等の繊維を平織
りして一枚の布状構造物としたものに、接着剤を
その表面に塗布し、ポリイミドフイルムを両面に
重ねて圧着した後、リード形状に打抜いて得るこ
とができる。 The lead 5 is made by plain-weaving fibers such as carbon fiber to form a single cloth-like structure, applying an adhesive to the surface, overlapping polyimide film on both sides and pressing it, and then punching it into a lead shape. You can get it by pulling it out.
第３図は本考案のリードバルブ１に用いられる
リード５の第２の実施例を示す断面説明図であ
り、同図に示すリード５は、従来の樹脂系リード
そのものをリード本体５ａとし、その両面にポリ
イミドフイルム５ｂを貼着したものであり、この
リード５は、上記布状構造物をエポキシ樹脂、イ
ミド系樹脂等に含浸してプリプレグを得た後、こ
のプリプレグを三枚重ねて、加熱・加圧して板状
にしたものに、接着剤をその表裏面に塗布し、ポ
リイミドフイルムを両面に重ねて圧着した後、リ
ード形状に打抜いて得ることができる。 FIG. 3 is an explanatory cross-sectional view showing a second embodiment of the reed 5 used in the reed valve 1 of the present invention. A polyimide film 5b is pasted on both sides, and this lead 5 is made by impregnating the cloth-like structure with epoxy resin, imide resin, etc. to obtain a prepreg, and then stacking three sheets of this prepreg and heating.・It can be obtained by applying adhesive to the front and back surfaces of a pressed plate, pressing polyimide film over both sides, and punching it into a lead shape.
上記のように構成されたリード５を有するリー
ドバルブ１にあつては、リード５の表面に耐熱性
のポリイミドフイルム５ｂ（約400℃の温度でも使
用可能）を貼着することにより、バツクフアイア
現象においても、焼損せず、また、熱変形しにく
いので、リード５の先端と着座面との間に隙間が
発生することがないものであり、耐熱性に優れた
ものである。 In the case of the reed valve 1 having the reed 5 configured as described above, a heat-resistant polyimide film 5b (which can be used at a temperature of about 400°C) is attached to the surface of the reed 5 to prevent the backfire phenomenon. Also, since it does not burn out and is not easily deformed by heat, there is no gap between the tip of the lead 5 and the seating surface, and it has excellent heat resistance.
また、本考案のリードバルブ１に用いられるリ
ード５にあつては、リード５の表裏面にポリイミ
ドフイルム５ｂを貼着するので、リード本体５ａ
として、多少の隙間のある布状構造物単体のみも
使用することができ、さらにリード本体５ａの耐
熱性の許容度が拡がり、使用し得る材質の選択範
囲が大幅に拡がる利点を有する。 Further, in the case of the reed 5 used in the reed valve 1 of the present invention, since the polyimide film 5b is attached to the front and back surfaces of the reed 5, the reed main body 5a
As a result, it is possible to use only a single cloth-like structure with some gaps, and the heat resistance tolerance of the lead body 5a is expanded, which has the advantage of greatly expanding the range of materials that can be used.
本考案は前記のように、圧力差に応じて開閉す
るリードを、ガラス繊維、カーボン繊維等の繊維
からなる布状構造物または該布状構造物をエポキ
シ樹脂、イミド系樹脂等に含浸して得られるプリ
プレグからなるリード本体と、このリード本体の
表裏面に貼着されるポリイミドフイルムとから構
成したので、リードバルブとしての作動応答性を
損なうことなく、耐熱性をも高めることができる
ことになる。すなわち、リード本体の表裏面は耐
熱性に優れるポリイミドフイルムで完全に被覆さ
れることになるので、バツクフアイア現象が発生
した場合においても、熱によりリード本体が溶解
したり破損したりするようなことは全くなく、ま
た、リード全体が熱変形してリードとの着座面と
の間に隙間が生じるようなことも全くない。した
がつて、作動応答性を著しく高めることができる
とともに、耐久性を高めることもできることにな
る等の優れた効果を有するものである。
As described above, the present invention provides a lead that opens and closes in response to a pressure difference by using a cloth-like structure made of fibers such as glass fiber or carbon fiber, or by impregnating the cloth-like structure with epoxy resin, imide resin, etc. Since it is composed of a reed body made of the obtained prepreg and a polyimide film attached to the front and back surfaces of the reed body, it is possible to improve heat resistance without impairing the operational response of the reed valve. . In other words, the front and back surfaces of the lead body are completely covered with polyimide film, which has excellent heat resistance, so even if a backfire phenomenon occurs, the lead body will not melt or be damaged due to heat. There is no possibility that the entire reed is thermally deformed and a gap is created between the reed and the seating surface. Therefore, it has excellent effects such as being able to significantly improve operational response and also improving durability.
第１図は本考案のリードバルブを示す断面図、
第２図は本考案のリードバルブに用いられるリー
ドの第１の実施例を示し、第２図ａはリードの一
部を切欠いた平面説明図、第２図ｂは断面説明
図、第３図は本考案のリードバルブに用いられる
リードの第２の実施例を示す断面説明図、第４図
は従来のリードを示し、第４図ａはリードの平面
図、第４図ｂは断面説明図である。
１……リードバルブ、２……連通孔、３……着
座部材、４……ケースコンプリート、５，１０…
…リード、５ａ……リード本体、５ｂ……ポリイ
ミドフイルム、６……ストツパ、７……取付けね
じ。
FIG. 1 is a sectional view showing the reed valve of the present invention.
Fig. 2 shows a first embodiment of the reed used in the reed valve of the present invention, Fig. 2a is a plan view with a part of the reed cut away, Fig. 2b is a cross-sectional view, and Fig. 3 4 is a cross-sectional explanatory diagram showing a second embodiment of the reed used in the reed valve of the present invention, FIG. 4 is a conventional reed, FIG. 4 a is a plan view of the reed, and FIG. 4 b is a cross-sectional explanatory diagram. It is. 1... Reed valve, 2... Communication hole, 3... Seating member, 4... Case complete, 5, 10...
...Lead, 5a...Lead body, 5b...Polyimide film, 6...Stopper, 7...Mounting screw.
Claims (1)
するリードバルブにおいて、前記リード５は、ガ
ラス繊維、カーボン繊維等の繊維からなる布状構
造物または該布状構造物をエポキシ樹脂、イミド
系樹脂等に含浸して得られるプリプレグからなる
リード本体５ａと、このリード本体５ａの表裏面
に貼着されるポリイミドフイルム５ｂとから構成
されていることを特徴とするリードバルブ。 In a reed valve that controls fluid with a reed 5 that opens and closes in response to a pressure difference, the reed 5 is made of a cloth-like structure made of fibers such as glass fiber or carbon fiber, or made of a cloth-like structure made of epoxy resin or imide resin. A reed valve comprising a reed main body 5a made of a prepreg obtained by impregnating the lead body 5a with a polyimide film 5b attached to the front and back surfaces of the reed main body 5a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987127640U JPH0511299Y2 (en) | 1987-08-22 | 1987-08-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987127640U JPH0511299Y2 (en) | 1987-08-22 | 1987-08-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6432421U JPS6432421U (en) | 1989-03-01 |
| JPH0511299Y2 true JPH0511299Y2 (en) | 1993-03-19 |
Family
ID=31380252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987127640U Expired - Lifetime JPH0511299Y2 (en) | 1987-08-22 | 1987-08-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0511299Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002349729A (en) * | 2001-05-29 | 2002-12-04 | Fujikura Rubber Ltd | Reed valve |
| JP2002349731A (en) * | 2001-05-29 | 2002-12-04 | Fujikura Rubber Ltd | Reed valve |
| JP2002349730A (en) * | 2001-05-29 | 2002-12-04 | Fujikura Rubber Ltd | Reed valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833870B2 (en) * | 1976-01-12 | 1983-07-22 | 塩野義製薬株式会社 | Thiazoline derivative |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833870U (en) * | 1981-08-29 | 1983-03-05 | 株式会社東京シリコ−ン名古屋工場 | reed valve |
-
1987
- 1987-08-22 JP JP1987127640U patent/JPH0511299Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833870B2 (en) * | 1976-01-12 | 1983-07-22 | 塩野義製薬株式会社 | Thiazoline derivative |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6432421U (en) | 1989-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4723783A (en) | Aluminum faced expanded graphite gasket and method of making same | |
| US4911972A (en) | Insulating composite gasket | |
| US5788247A (en) | Composite gasket comprising surface formed tangs | |
| JPH0511299Y2 (en) | ||
| US5349259A (en) | Rotor for a printed motor | |
| EP1858106A3 (en) | Ceramic thin plate member | |
| JPH0513952Y2 (en) | ||
| JPH0543329Y2 (en) | ||
| JPS6242345Y2 (en) | ||
| JP2002340845A (en) | Gas sensor element and manufacturing method thereof | |
| JPH08228052A (en) | Manufacture of metal fitted substrate | |
| JPS5892424U (en) | Sound insulation material for internal combustion engines | |
| JPH0612200Y2 (en) | Reed valve | |
| KR930008545Y1 (en) | Complex panels with regard to insulation | |
| KR930005337Y1 (en) | Fan | |
| JP2002349730A (en) | Reed valve | |
| JPH1194189A (en) | Heat insulating material pressing structure | |
| JPH0219573Y2 (en) | ||
| JP2001153576A (en) | Carbon fiber skin heat pipe panel and heat pipe | |
| JPS6229230Y2 (en) | ||
| MXPA97009948A (en) | Composite gasket that comprises a surface formed by language | |
| JP2002349729A (en) | Reed valve | |
| JPH10330730A (en) | Material for gasket and its production | |
| JPS5913403Y2 (en) | Heat-resistant airtight packing | |
| JPS5929382A (en) | Insulating plate used as terminal part for fuel cell |