JPS5926668A - Gasket and production thereof - Google Patents
Gasket and production thereofInfo
- Publication number
- JPS5926668A JPS5926668A JP13781782A JP13781782A JPS5926668A JP S5926668 A JPS5926668 A JP S5926668A JP 13781782 A JP13781782 A JP 13781782A JP 13781782 A JP13781782 A JP 13781782A JP S5926668 A JPS5926668 A JP S5926668A
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- shape memory
- temperature
- temperature range
- annular 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は金属板材製ガスケット及びその製造方法に関し
、更に詳しくは、形状記憶合金材料をもって製せられた
ガスケット及びその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gasket made of a metal plate and a method of manufacturing the same, and more particularly to a gasket made of a shape memory alloy material and a method of manufacturing the same.
従来より、耐熱性等を要求される密封手段として金属材
料を用いたガスケットが広く使用されているが、金属ガ
スケットにおいては、ガスケットに対する締イ」力を強
固に保つことにより密封性を保持させるのが通常であっ
て、そのために経時変化に基づく弾性力の減衰等により
密封性が低下する等の問題点を有している。第１図は先
行技術による金属材製ガスケットの一例を示すもので、
金属板材をもって中空の環状体に製せられたガスケット
１が、互いに結合される二部材２，３の一方の部材２に
削設された環状を呈する装着用溝５に挿入され、他方の
部材３により押圧されて、装着用溝５の底面及び他方の
部材３に対し弾性接触して両部材２．３間の隙間を密封
する構成となっているが、経時変化によりガスケット１
の弾性力が減衰して密封性の低下を来すおそれがあり、
特に環境温度の変化等を伴なう装置においては、上記し
たガスケツ１〜１の弾性減衰による密封性低下現象が著
じるしく表われる。Conventionally, gaskets made of metal materials have been widely used as sealing means that require heat resistance, etc., but with metal gaskets, the sealing performance is maintained by maintaining a strong tightening force against the gasket. This usually causes problems such as a decrease in sealing performance due to attenuation of elastic force due to changes over time. Figure 1 shows an example of a metal gasket according to the prior art.
A gasket 1 made of a metal plate into a hollow annular body is inserted into an annular mounting groove 5 cut into one of the two members 2 and 3 to be joined to each other, and the gasket 1 is inserted into an annular mounting groove 5 cut into one of the two members 2 and 3 to be joined to the other member 3. The gasket 1 is pressed against the bottom surface of the mounting groove 5 and the other member 3 to seal the gap between the two members 2 and 3. However, due to aging, the gasket 1
There is a risk that the elastic force of the seal will attenuate and the sealing performance will deteriorate.
Particularly in devices that are subject to changes in environmental temperature, etc., the phenomenon in which the sealing performance deteriorates due to the elastic damping of the gaskets 1 to 1 described above is noticeable.
発明者等は形状記憶合金が環境温度の変化に対応して形
状を変化させることに着目して、ガスケットを形状記憶
合金をもって製作し、形状の変化に伴なって寸法を変化
させる構成となすことにより、弾性力の減衰を生起させ
ず、長期間にわたり正常な密封性を保ち得るガスケット
及びその製造方法を発明した。本発明の構成は、形状記
憶合金の板材をもって、形状記憶温度よりも高温の領域
において、径方向に開口する断面略Ｕ字形状の環状体を
形成し、次いで形状記憶温度に比し低温の領域において
、上記環状体に塑性変形を生起させてＵ字状断面の開口
端部の軸方向幅寸法を減縮さゼた後、ガスケツｌ−装着
用溝内に挿入するものである。減縮前の軸方向幅寸法は
、ガスケット装着用溝の深さに比し大きく設定され、減
縮後の軸方向幅寸法は装着用溝の深さに比しゃ）小さく
設定されて挿入され、形状記憶温度よりも高温領域内に
ある運転温度において、当初設定された軸方向寸法に復
帰しようとして装着用溝の底面及び他方の部材の対向面
に対し弾性接触する如くなすものである。The inventors focused on the fact that shape memory alloys change their shape in response to changes in environmental temperature, and created a gasket using a shape memory alloy so that its dimensions change as the shape changes. As a result, we have invented a gasket that does not cause attenuation of elastic force and can maintain normal sealing performance for a long period of time, and a method for manufacturing the same. The structure of the present invention is to form an annular body having a generally U-shaped cross section that opens in the radial direction in a region of a shape memory alloy plate having a temperature higher than the shape memory temperature, and then in a region having a temperature lower than the shape memory temperature. In this method, the annular body is plastically deformed to reduce the axial width of the open end of the U-shaped cross section, and then the annular body is inserted into the gasket L-installation groove. The axial width dimension before reduction is set larger than the depth of the gasket installation groove, and the axial width dimension after reduction is set smaller than the depth of the installation groove, and the gasket is inserted with shape memory. At an operating temperature that is in a higher temperature range than the above temperature, the axial dimension attempts to return to the originally set axial dimension and comes into elastic contact with the bottom surface of the mounting groove and the opposing surface of the other member.
以下、図面により本発明の実施例について述べる。第２
図の実施例においては、形状記憶合金の板材を曲げ加工
されて成るガスケツ１〜１は、径方向外方に開口する略
Ｕ字形状の断面形状を備える環状体をなし、形状記憶温
度に比し高温の領域において図上に鎖線をもって示す如
く、軸方向幅寸法が装着用溝５の深さよりも犬になる如
くに設定され、次いで、形状記憶温度に比し低温の領域
において、図上に点線をもって示す如く、軸方向幅寸法
を装着用溝５の深さよりも小となるように変形させられ
て、装着用溝５内に挿入される。両部材１，２が組合せ
られて、形状記憶温度よりも高温の領域にある運転温度
に達するど、ガスケット１は点線で示される状態から鎖
線で示される状態に復帰して軸方向幅寸法を拡大させよ
うとするが、装着用溝５の底面と他方の部材３に挟圧さ
れて実線で示す状態に保たれるので開口側の外側縁を装
着用ｉＭ ５の底面及び他方の部材３の対向面に弾性接
触させて両部材２．３間の隙間に対し密封作用を示す。Embodiments of the present invention will be described below with reference to the drawings. Second
In the illustrated embodiment, the gaskets 1 to 1 formed by bending a shape memory alloy plate form an annular body with a substantially U-shaped cross section opening radially outward, and have a shape memory temperature that is In the high temperature region, as shown by the chain line in the figure, the axial width dimension is set to be smaller than the depth of the mounting groove 5, and then in the region of low temperature compared to the shape memory temperature, as shown by the chain line in the figure. As shown by the dotted line, it is inserted into the mounting groove 5 after being deformed so that the axial width dimension is smaller than the depth of the mounting groove 5 . When both members 1 and 2 are combined and reach an operating temperature in a region higher than the shape memory temperature, the gasket 1 returns from the state shown by the dotted line to the state shown by the chain line and expands the axial width dimension. However, the bottom surface of the mounting groove 5 and the other member 3 keep the state shown by the solid line. It is brought into elastic contact with the surface and exhibits a sealing effect against the gap between both members 2.3.
本発明のガスケットは上記したように形状記憶合金の板
材を用いて、形状記憶温度に比し高温の領域において、
装着用溝の深さよりも軸方向幅寸法が広くなる如くに曲
げ加工された後に、形状記憶温度に比し低温の領域にお
いて装着用溝の深さよりも小さい軸方向幅寸法に変形さ
れ、形状記憶温度よりも高い温度領域において、当初の
曲げ加工時の幅寸法に復元して装着用溝の底面及び該底
面と対向する他方の部材の表面に対し弾性接触をなして
密封性をもたらす構成となっているために、従来技術に
よるガスケットにおいて見られた弾性の減衰による密封
性の低下が見られず、装着用溝の深さのバラツキに対し
ても適応して密封性を示すことができ、更に修理等によ
り両部材２．３を分解した後においても数便用のガスケ
ットが弾性を有しているので、再使用が可能である。As described above, the gasket of the present invention uses a shape memory alloy plate material, and in a region of high temperature compared to the shape memory temperature,
After being bent so that the axial width dimension is wider than the depth of the mounting groove, the shape memory is deformed to an axial width dimension smaller than the depth of the mounting groove in a region of low temperature compared to the shape memory temperature. In a temperature range higher than the above temperature, the width is restored to the original width at the time of bending, and elastic contact is made with the bottom surface of the mounting groove and the surface of the other member facing the bottom surface to provide sealing performance. Because of this, there is no deterioration in sealing performance due to elastic attenuation, which was seen in conventional gaskets, and the sealing performance can be shown by adapting to variations in the depth of the mounting groove. Even after both members 2.3 are disassembled for repair or the like, the gasket for multiple flights has elasticity, so it can be reused.
尚図示の実施例においては、ガスケットが怪力５−
内外方へ開口する略Ｕ字形状の断面形状を呈する如くに
示されているが、これに限定されるものでなく、径方向
内方に開口する略Ｕ字状の断面形状を呈するものであっ
ても同時の効果を奏し得る。In the illustrated embodiment, the gasket is shown to have a substantially U-shaped cross-sectional shape that opens inwardly and outwardly; however, the gasket is not limited to this, and may have an opening inwardly in the radial direction. Even if it has a substantially U-shaped cross-sectional shape, the same effect can be achieved.
第１図は従来技術によるガスケットの一例を示す断面図
、第２図は本発明によるガスケットの一実施例を示す断
面図である。
１・・・ガスケット、 ２・・・一方の部材、３・・
・他方の部材、 ５・・・装着用溝。
特許出願人
日本オイルシール工業株式会社
６一
第１図
３
第２図
手続ネ巾正書（方式）
％式％）
１、事件の表示
昭和５７年特許願第１３７８１７号
２、発明の名称
カスケラ１〜及びその製造方法
３、補正をする省
事（’ｌとの関係 特許出願人
郵便番号 １０５
住 所 東京都港区芝大門１丁目１２番１５号名 称（
４３ｇ＞日本オイルシールエ業株式会社昭和５７年１１
月１２日
５、補正の対象
明細書全文
６、補正の内容
明＠書の浄書（内容に変更なし）。
７、添付書類
明細書 １通
以上
手続補正書（自発）
特許庁長官 若 杉 和 夫 殿
１、事件の表示
昭和５７年特許願第１３７８１７号
２、発明の名称
ガスケット及びその製造方法
３、補正を１−る者
事件との関係 特許出願人
郵便番号 １０５
住 所 東京都港区芝大門１丁目１２番１５号（１〉明
細書の発明の詳細な説明の欄
（２）明細書の図面の簡単な説明の欄
（３〉図面
く１）明細書の第５ページ第２行乃至第４行に記載の［
密封作用を示す。 本発明のガスケットは］を、下記の
通りに訂正覆る。
［−密封作用を示ず。 図示の実施例においては、ガス
ケット１が径方向外方へ開口する断面略Ｕ字形状の環状
体として示されているが、これに限定されるものではな
く、径方向内方に開口する断面略Ｕ字形状の環状体であ
っても同様の効果を奏し得る。
第３図の実施例は、共に形状記憶合金をもって製せられ
、径方向外方へ開口する大径断面のガスケット部材６と
、径方向内方へ開口する小径断面のガスケット部材７と
が互いに結合されて成り、強力な拡張力を示し得るもの
で、第４図の実施例は、形状記憶合金をもって製せられ
、径方向外方へ開口するガスケット１を、四弗化エチレ
ン樹脂の如く、耐熱性に冨む弗素樹脂材製被膜９をもっ
て覆ったもので、すぐれた密封性及び剛性を兼ね備える
もので、第５図の実施例は、径方向外方に開口する断面
略Ｕ字形状のガスケット１の両端縁部に曲げ加工を施し
て、被密封両部材に対し弾性接触する部分に先鋭な稜部
１０を形成させて密封機能の向上をはかったものである
。
本発明のガスケツｉ〜は、」
（２）明細書の第５ページ第２０行に記載の「尚図示の
実施例」から、第６ページ第４行【こ記載の１効果を奏
し得る。」までを削除する。
（３）明細書の第６ページ第８行に記載の「実施例を示
４−断面図である。」から同ページ第１０行に記載の［
−装着用溝。」までを、下記の通りに訂正する。
［実施例を示す断面図、第３図乃至第５図は、それぞれ
、他の実施例を示づ断面図である。
１・・・ガスケット、 ２・・・一方の部材、３・・・
他方の部材、 ５・・・装着用溝、 ６・・・大径断面
のガスケット部材、 ７・・・小径断面のガスケット部
材、 ９・・・被膜、 １０・・・稜部。」
（４）図面に添付図面に示す第３図、第４図及び第５図
を加入する。
６、添付書類の目録
（１）図面 １通
以 上
４−
第３図
第４図
、９FIG. 1 is a sectional view showing an example of a gasket according to the prior art, and FIG. 2 is a sectional view showing an embodiment of a gasket according to the present invention. 1... Gasket, 2... One member, 3...
- The other member, 5... mounting groove. Patent Applicant Japan Oil Seal Industry Co., Ltd. 61 Figure 1 Figure 2 Figure 2 Procedure Name (Method) % Formula %) 1. Indication of the incident 1982 Patent Application No. 137817 2. Name of the invention Casquera 1 - and its manufacturing method 3, relationship with the Ministry of Affairs ('l) Patent applicant postal code 105 Address 1-12-15 Shiba Daimon, Minato-ku, Tokyo Name (
43g>Japan Oil Seal Engineering Co., Ltd. November 1988
May 12, 5, Full text of the specification to be amended 6, Engraving of the contents of the amendment @ letter (no change in content). 7. Description of attached documents One or more written amendments (voluntary) Director of the Patent Office Kazuo Wakasugi 1. Indication of the case Patent Application No. 137817 filed in 1982 2. Name of the invention Gasket and its manufacturing method 3. Amendment 1-Relationship with the person's case Patent applicant postal code 105 Address 1-12-15 Shiba Daimon, Minato-ku, Tokyo (1> Detailed description of the invention in the specification (2) Brief description of the drawings in the specification Explanation column (3> Drawings 1) [
Shows sealing action. The gasket of the present invention covers ] with the following corrections. [-No sealing effect. In the illustrated embodiment, the gasket 1 is shown as an annular body with a substantially U-shaped cross section that opens radially outward, but the present invention is not limited to this. A similar effect can be achieved even with a U-shaped annular body. In the embodiment shown in FIG. 3, a gasket member 6 having a large diameter cross section opening radially outward and a gasket member 7 having a small diameter cross section opening radially inward are both made of a shape memory alloy and are coupled to each other. In the embodiment shown in FIG. 4, the gasket 1, which is made of a shape memory alloy and opens radially outward, is made of a heat-resistant material such as tetrafluoroethylene resin. The gasket 1 is covered with a coating 9 made of a fluororesin material having excellent properties and has excellent sealing performance and rigidity.The embodiment shown in FIG. The sealing function is improved by bending both end edges to form sharp ridges 10 at the portions that come into elastic contact with both members to be sealed. The gasket i~ of the present invention can achieve one effect from the "illustrated embodiment" described in page 5, line 20 of the specification to page 6, line 4 of the specification. ” to be deleted. (3) From "This is a 4-sectional view showing an embodiment" written on page 6, line 8 of the specification to "[This is a sectional view]" written on line 10 of the same page
- Mounting groove. ” are corrected as follows. [Cross-sectional views showing embodiments, FIGS. 3 to 5 are sectional views showing other embodiments. 1... Gasket, 2... One member, 3...
The other member, 5... Mounting groove, 6... Gasket member with large diameter cross section, 7... Gasket member with small diameter cross section, 9... Coating, 10... Edge portion. (4) Figures 3, 4 and 5 shown in the attached drawings are added to the drawings. 6. List of attached documents (1) Drawings 1 or more copies 4- Figure 3 Figure 4, 9
Claims (1)
高温の領域において、径方向に開口する断面略Ｕ字形状
の環状体に製せられ、形状記憶温度に比し低温の領域に
おいて軸方向幅寸法を縮小されて成るガスケット。 ２、形状記憶合金の板材を用い、形状記憶温度に比し高
温の領域において、径方向に開口する断面略Ｕ字形状の
環状体に曲げ加工する工程と、形状記憶温度に比し低温
の領域において前記環状体の軸方向幅寸法を縮小させる
工程とを含むガスケットの製造方法。[Claims] 1. A plate material of a shape memory alloy is made into an annular body with a substantially U-shaped cross section opening in the radial direction in a region of high temperature compared to the shape memory humidity, and A gasket whose axial width is reduced in low-temperature areas. 2. Using a shape memory alloy plate material, bending it into an annular body with an approximately U-shaped cross section opening in the radial direction in a region of high temperature compared to the shape memory temperature, and a step of bending it into an annular body with a substantially U-shaped cross section that opens in the radial direction. A method for manufacturing a gasket, comprising: reducing the axial width dimension of the annular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13781782A JPS5926668A (en) | 1982-08-06 | 1982-08-06 | Gasket and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13781782A JPS5926668A (en) | 1982-08-06 | 1982-08-06 | Gasket and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5926668A true JPS5926668A (en) | 1984-02-10 |
Family
ID=15207542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13781782A Pending JPS5926668A (en) | 1982-08-06 | 1982-08-06 | Gasket and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926668A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0112674A2 (en) * | 1982-12-17 | 1984-07-04 | Westinghouse Electric Corporation | All-metal expandable ultra high vacuum seal |
| JPS6130759U (en) * | 1984-07-30 | 1986-02-24 | 日東工器株式会社 | Seal ring for fluid tightness |
| JPS62188927U (en) * | 1986-05-19 | 1987-12-01 | ||
| EP1602864A1 (en) * | 2004-06-03 | 2005-12-07 | C.R.F. Società Consortile per Azioni | Sealing device with shape memory means |
| CN102097703A (en) * | 2009-12-09 | 2011-06-15 | 苏州华旃航天电器有限公司 | Self-sealing sealed connector |
| CN103711908A (en) * | 2014-01-22 | 2014-04-09 | 四川日机密封件股份有限公司 | Temperature triggering type passive parking security sealing device |
| CN107100997A (en) * | 2017-07-03 | 2017-08-29 | 广汉川油井控装备有限公司 | Lip-type packing and its plug valve |
| US10612658B2 (en) | 2016-06-03 | 2020-04-07 | Fmc Technologies, Inc. | Shape memory alloy member for use in polymer or composite seal applications |
| JP2021071118A (en) * | 2019-10-29 | 2021-05-06 | 株式会社フジキン | Joint structure and assembly method of the same |
| CN115218048A (en) * | 2021-04-15 | 2022-10-21 | 中国航发商用航空发动机有限责任公司 | Pipe joint device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545789A (en) * | 1978-09-26 | 1980-03-31 | Dow Chemical Co | Halopolymers crossslinked with 1*33diaminopropane |
-
1982
- 1982-08-06 JP JP13781782A patent/JPS5926668A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545789A (en) * | 1978-09-26 | 1980-03-31 | Dow Chemical Co | Halopolymers crossslinked with 1*33diaminopropane |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0112674A2 (en) * | 1982-12-17 | 1984-07-04 | Westinghouse Electric Corporation | All-metal expandable ultra high vacuum seal |
| EP0112674A3 (en) * | 1982-12-17 | 1986-01-22 | Westinghouse Electric Corporation | All-metal expandable ultra high vacuum seal |
| JPS6130759U (en) * | 1984-07-30 | 1986-02-24 | 日東工器株式会社 | Seal ring for fluid tightness |
| JPS62188927U (en) * | 1986-05-19 | 1987-12-01 | ||
| EP1602864A1 (en) * | 2004-06-03 | 2005-12-07 | C.R.F. Società Consortile per Azioni | Sealing device with shape memory means |
| WO2005119102A1 (en) * | 2004-06-03 | 2005-12-15 | C.R.F. Società Consortile Per Azioni | Sealing device with shape memory means |
| CN102097703A (en) * | 2009-12-09 | 2011-06-15 | 苏州华旃航天电器有限公司 | Self-sealing sealed connector |
| CN103711908A (en) * | 2014-01-22 | 2014-04-09 | 四川日机密封件股份有限公司 | Temperature triggering type passive parking security sealing device |
| US10612658B2 (en) | 2016-06-03 | 2020-04-07 | Fmc Technologies, Inc. | Shape memory alloy member for use in polymer or composite seal applications |
| CN107100997A (en) * | 2017-07-03 | 2017-08-29 | 广汉川油井控装备有限公司 | Lip-type packing and its plug valve |
| JP2021071118A (en) * | 2019-10-29 | 2021-05-06 | 株式会社フジキン | Joint structure and assembly method of the same |
| CN115218048A (en) * | 2021-04-15 | 2022-10-21 | 中国航发商用航空发动机有限责任公司 | Pipe joint device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1282792B1 (en) | Improved ring seal | |
| JPS5926668A (en) | Gasket and production thereof | |
| US6073976A (en) | Screwed pipe joint with cutting ring for metal tubes | |
| US4673187A (en) | Bimetallic spiral wound gasket | |
| US5040804A (en) | Lip seal with unitized support ring | |
| JPS6159069A (en) | Mechanical seal | |
| WO2009142110A1 (en) | Metal gasket | |
| KR950033227A (en) | How to obtain a leakproof connection between the tube and the sleeve | |
| JP2597071Y2 (en) | gasket | |
| JPH0656211B2 (en) | Flexible metal seal joint | |
| US3727925A (en) | Antiblow-by rings | |
| US3784213A (en) | Rotary face seal assembly | |
| KR920004755A (en) | Closing valve | |
| WO2005052360A1 (en) | Combustion gas seal for fuel injection valve | |
| US2167603A (en) | Grease retainer with unitary diaphragms and supports | |
| JPH11210886A (en) | Gasket | |
| KR100537155B1 (en) | Combustion gas seal for injector | |
| GB2220702A (en) | Device for retaining a housing of a ball joint | |
| JP3177099B2 (en) | Sealing device | |
| JP2729886B2 (en) | Synthetic resin seal ring | |
| JPS60132173A (en) | Annular seal | |
| JPH1078135A (en) | Seal structure | |
| JPH01153871A (en) | Gasket | |
| JPS62124322A (en) | Fastening structure for ceramic bearing | |
| JP3288343B2 (en) | One-touch fitting for flexible tube |