JP2775176B2 - Diaphragm mounting structure - Google Patents
Diaphragm mounting structureInfo
- Publication number
- JP2775176B2 JP2775176B2 JP1159883A JP15988389A JP2775176B2 JP 2775176 B2 JP2775176 B2 JP 2775176B2 JP 1159883 A JP1159883 A JP 1159883A JP 15988389 A JP15988389 A JP 15988389A JP 2775176 B2 JP2775176 B2 JP 2775176B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- outer peripheral
- peripheral edge
- joining flange
- flange portion
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
- G05D16/0655—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0633—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the properties of the membrane
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Reciprocating Pumps (AREA)
- Diaphragms And Bellows (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ この発明は、ダイアフラム弁やダイアフラムポンプ等
に使用されるダイアフラムの取付構造に関する。The present invention relates to a diaphragm mounting structure used for a diaphragm valve, a diaphragm pump, and the like.
＜従来の技術＞ 従来のダイアフラムの取付構造では、第６図に示すよ
うに、ダイアフラム１の外周縁の上下面が二つの部材２
・６のそれぞれの接合フランジ部３・７の間に配置さ
れ、一方の接合フランジ部３の外周縁部４が他方の接合
フランジ部７を取り囲むように内側にかしめられること
により、両接合フランジ部３・７の全面に挟持されてダ
イアフラム１が取り付けられていた（実開平１−8575号
公報参照）。なお、一方の部材２は、接合フランジ部３
が外周縁部４とともに当初平板状としており、絞り加工
等により、かしめ前に、外周縁部４を下方へ延びるよう
に賦形するものである。<Prior Art> In a conventional diaphragm mounting structure, the upper and lower surfaces of an outer peripheral edge of a diaphragm 1 are two members 2 as shown in FIG.
6 are arranged between the respective joining flanges 3 and 7, and the outer peripheral edge 4 of one of the joining flanges 3 is swaged inward so as to surround the other joining flange 7, so that the two joining flanges are joined together. Diaphragm 1 was attached so as to be sandwiched over the entire surface of 3.7 (see Japanese Utility Model Laid-Open No. 1-8575). In addition, one member 2 includes a joining flange 3
Is initially flat with the outer peripheral portion 4, and the outer peripheral portion 4 is shaped by drawing or the like so as to extend downward before caulking.
そして、従来の外周縁部４のかしめ時には、接合フラ
ンジ部３の外周縁側から内側に向って押圧力をかけてか
しめており、何ら特別な手段を講じないと、ダイアフラ
ム１の外周縁が内側にずれてダイアフラム１にしわや芯
ずれが生じ易くなつてしまう。When the conventional outer peripheral edge portion 4 is caulked, a pressing force is applied inward from the outer peripheral edge side of the joining flange portion 3, and if no special measures are taken, the outer peripheral edge of the diaphragm 1 becomes inward. As a result, the diaphragm 1 is likely to be wrinkled or misaligned.
そのため、接合フランジ部３に凹部５を形成するとと
もに、ダイアフラム１の外周縁の端部に凹部５へ配置さ
せるリツプ部1aを形成し、かしめ時に、リツプ部1aを凹
部５内に収容し、ダイアフラム１の外周縁の内側への移
動を防止して、両接合フランジ部３・７間でダイアフラ
ム１の外周縁を挟持するようにしていた。Therefore, a concave portion 5 is formed in the joining flange portion 3 and a lip portion 1a to be disposed in the concave portion 5 is formed at an end of the outer peripheral edge of the diaphragm 1, and the lip portion 1a is accommodated in the concave portion 5 at the time of caulking, and The inner peripheral edge of the diaphragm 1 is prevented from moving inward, and the outer peripheral edge of the diaphragm 1 is sandwiched between the joining flange portions 3 and 7.
＜発明が解決しようとする課題＞ しかし、従来のような構造では、接合フランジ部３に
凹部５を形成するとともに、ダイアフラム１の外周縁に
リツプ部1aを形成しなければならず、接合フランジ部３
の凹部５の加工やダイアフラム１の成形に工数がかか
り、ダイアフラム１を取り付けた製品のコストアツプを
招いていた。<Problem to be Solved by the Invention> However, in the conventional structure, the concave portion 5 must be formed in the joint flange portion 3 and the lip portion 1a must be formed on the outer peripheral edge of the diaphragm 1. 3
It takes a lot of man-hours to process the concave portion 5 and to form the diaphragm 1, leading to an increase in the cost of a product to which the diaphragm 1 is attached.
この発明は、上述の課題を解決するものであり、製品
のコストアツプを招くような、一方の接合フランジ部に
凹部を設けたり、ダイアフラム外周縁にリツプ部を設け
たりすることなく、ダイアフラムのしわや芯ずれの発生
を防止して取り付けることができるダイアフラムの取付
構造を提供することを目的とする。The present invention solves the above-mentioned problem, and does not provide a concave portion on one of the joining flanges or a lip portion on the outer peripheral edge of the diaphragm, which may increase the cost of the product. An object of the present invention is to provide a diaphragm mounting structure that can be mounted while preventing occurrence of misalignment.
＜課題を解決するための手段＞ この発明に係る取付構造では、ダイアフラム外周縁の
上下面が二つの部材のそれぞれの接合フランジ部の間に
配置され、前記一方の接合フランジ部の外周縁部が前記
他方の接合フランジ部を取り囲むように内側からかしめ
られることにより、前記ダイアフラムが前記両接合フラ
ンジ部間に挟持されて取り付けられるダイアフラムの取
付構造であつて、 前記一方の接合フランジ部の外周縁部が、前記他方の
接合フランジ部の外周面に接触することなく、先端だけ
を前記ダイアフラム外周縁の端部より内側部位で前記他
方の接合フランジ部に当接させるように、前記他方の接
合フランジ部に対して、前記当接部位を除いて、隙間を
生じさせてかしめられていることを特徴とする。<Means for Solving the Problems> In the mounting structure according to the present invention, the upper and lower surfaces of the outer peripheral edge of the diaphragm are arranged between the joint flange portions of the two members, and the outer peripheral edge of the one joint flange portion is A diaphragm mounting structure in which the diaphragm is clamped between the two joining flange portions so as to be clamped from the inside so as to surround the other joining flange portion, and an outer peripheral edge portion of the one joining flange portion is provided. The other joint flange portion so that only the tip abuts on the other joint flange portion at a position inside the end of the outer peripheral edge of the diaphragm without contacting the outer peripheral surface of the other joint flange portion. On the other hand, a gap is formed except for the contact portion, and caulking is performed.
＜実施例＞ 以下、この発明の一実施例を図面に基づいて説明す
る。An embodiment of the present invention will be described below with reference to the drawings.
第１・２図に示す実施例のダイアフラム11が取り付け
られる製品は、内燃機関の燃料噴射装置の燃料を一定に
保持するために使用される燃料圧力調整弁Ｘである。The product to which the diaphragm 11 of the embodiment shown in FIGS. 1 and 2 is attached is a fuel pressure regulating valve X used to keep the fuel of a fuel injection device of an internal combustion engine constant.
この燃料圧力調整弁Ｘについて述べると、第２図に示
すように、負圧導入パイプ18を備えた板金製で略円筒状
の上カバー部材12と、燃料入口19及び燃料出口20を備え
た板金製で略円筒状の下カバー部材16と、上下カバー部
材12・16のそれぞれ全周に設けられた接合フランジ部13
・17の間に取り付けられるゴム製で円環状のダイアフラ
ム11と、から構成されている。なお、負圧導入パイプ18
は、図示しない内燃機関の吸気通路に連通され、また、
燃料入口19は、図示しないフユーエルポンプに接続さ
れ、さらに、燃料出口20は、図示しない燃料タンクに接
続されるものである。As shown in FIG. 2, the fuel pressure regulating valve X is made of a sheet metal having a substantially cylindrical upper cover member 12 having a negative pressure introducing pipe 18 and a sheet metal having a fuel inlet 19 and a fuel outlet 20. And a substantially cylindrical lower cover member 16 and a joining flange portion 13 provided on the entire periphery of each of the upper and lower cover members 12 and 16.
-It is composed of an annular diaphragm 11 made of rubber and attached between 17. The negative pressure introduction pipe 18
Is communicated with an intake passage of an internal combustion engine (not shown).
The fuel inlet 19 is connected to a fuel pump (not shown), and the fuel outlet 20 is connected to a fuel tank (not shown).
ダイアフラム11の上面には、圧縮コイルばね22用のば
ね座21が配設され、ダイアフラム11の下面には、ダイア
フラム11を経てばね座21と接続固定される弁体保持部材
23が配設されている。A spring seat 21 for a compression coil spring 22 is provided on the upper surface of the diaphragm 11, and a valve body holding member connected and fixed to the spring seat 21 via the diaphragm 11 on the lower surface of the diaphragm 11.
23 are arranged.
弁体保持部材23の下部には、リテーナ24により保持さ
れたボール25が配設され、ボール25には、燃料出口20の
上部に形成された弁座26に当接する弁体27が固定されて
いる。A ball 25 held by a retainer 24 is disposed below the valve body holding member 23, and a valve body 27 that is in contact with a valve seat 26 formed on an upper portion of the fuel outlet 20 is fixed to the ball 25. I have.
この燃料圧力調整弁Ｘは、燃料室29内の圧力が負圧室
28内の圧力と所定以上の差を生じた場合に、圧縮コイル
ばね22の付勢力に抗してダイアフラム11が押し上げら
れ、燃料入口19からの燃料を、弁体27と弁座26との間か
ら燃料出口20を経て図示しない燃料タンクへ戻すことに
より、燃料流路内の圧力調整を行なうものである。The fuel pressure regulating valve X is configured so that the pressure in the fuel chamber 29 is a negative pressure chamber.
When a difference greater than a predetermined value from the pressure in 28 occurs, the diaphragm 11 is pushed up against the urging force of the compression coil spring 22, and the fuel from the fuel inlet 19 is moved between the valve body 27 and the valve seat 26. Then, the pressure in the fuel flow path is adjusted by returning the fuel to a fuel tank (not shown) through the fuel outlet 20.
そして、実施例のダイアフラム11は、上カバー部材12
の接合フランジ部13の外周縁部14がダイアフラム11外周
縁の端部より内側部位で下カバー部材16の接合フランジ
部17に当接してかしめられ、ダイアフラム11の外周縁が
接合フランジ部13・17間に挟持されて、燃料圧力調整弁
Ｘに取り付けられている。なお、接合フランジ部13・17
のそれぞれの対向面には、ダイアフラム11の挟持力を向
上させるため、従来と同様に、複数の円環状の凹溝13a
・17aが形成されている。The diaphragm 11 of the embodiment is provided with an upper cover member 12.
The outer peripheral edge portion 14 of the joining flange portion 13 abuts against the joining flange portion 17 of the lower cover member 16 at a position inside the end of the outer peripheral edge of the diaphragm 11 and is caulked, and the outer peripheral edge of the diaphragm 11 is joined to the joining flange portions 13 and 17. The fuel pressure regulating valve X is mounted between the fuel pressure regulating valves X. Note that the joint flanges 13 and 17
In order to improve the holding force of the diaphragm 11, a plurality of annular concave grooves 13a
・ 17a is formed.
接合フランジ部13の外周縁部14をかしめる場合には、
第３図に示すように、上下方向に開閉する上型31と下型
32とから構成される金型30を使用する。この金型30の上
型31には、第３図に示すように、かしめ前の状態におい
て接合フランジ部13から上方へ突出している外周縁部14
をかしめるために、円環状に配置されて断面形状を略半
円形状とするかしめ用凹部31aが形成されている。な
お、32a・32bは、上カバー部材12のセツト用凹部であ
り、31bは、かしめ時の下カバー部材16の収容凹部であ
る。When caulking the outer peripheral edge portion 14 of the joining flange portion 13,
As shown in Fig. 3, upper die 31 and lower die that open and close in the vertical direction
A mold 30 composed of 32 and 30 is used. As shown in FIG. 3, the upper die 31 of the die 30 has an outer peripheral edge portion 14 protruding upward from the joining flange portion 13 before caulking.
In order to caulk, a caulking concave portion 31a which is arranged in an annular shape and has a substantially semicircular cross section is formed. 32a and 32b are set recesses of the upper cover member 12, and 31b is a storage recess of the lower cover member 16 at the time of swaging.
そして、かしめ加工時には、燃料入口19・弁体27・圧
縮コイルばね22等をそれぞれ組み付けた状態で上カバー
部材12・ダイアフラム11・下カバー部材16を順次下型32
にセツトし、金型30を型締めすれば、接合フランジ部13
の外周縁部14がかしめられる。At the time of caulking, the upper cover member 12, the diaphragm 11, and the lower cover member 16 are sequentially connected to the lower mold 32 while the fuel inlet 19, the valve body 27, the compression coil spring 22, and the like are assembled.
To the joint flange 13
Is crimped.
そして、その際には、接合フランジ部13の外周縁部14
が、上型31のかしめ用凹部31aにより、接合フランジ部1
7に対して、接合フランジ部17の外周面から当接する部
位の直前までの範囲で、隙間Ｈを生じさせて曲面状にか
しめられて、先端だけをダイアフラム11外周縁の端部よ
り内側部位で接合フランジ部17に対して当接させる。す
ると、ダイヤフラム11の外周縁は、接合フランジ部17に
おける外周縁部14の当接する部位17Aが塑性変形して、
その変形部17Aと接合フランジ部13とで挟持されること
となる。また、接合フランジ部13の外周縁部14は、隙間
Ｈを生じさせて、先端まで接合フランジ部17に対して接
触しないことから、接合フランジ部17をその半径方向に
押圧せず、その結果、ダイアイフラム11は、かしめ時、
接合フランジ部13・17を介して、半径方向の内方へ移動
するような力を受けることなく、挟持されることとな
る。At that time, the outer peripheral edge portion 14 of the joining flange portion 13
However, due to the caulking recess 31a of the upper die 31, the joining flange 1
In the range from the outer peripheral surface of the joining flange portion 17 to the region immediately before the abutting portion, a gap H is formed and caulked in a curved shape, and only the leading end is located inside the end of the outer peripheral edge of the diaphragm 11. It is brought into contact with the joining flange 17. Then, the outer peripheral edge of the diaphragm 11 is plastically deformed at the portion 17A where the outer peripheral edge portion 14 in the joining flange portion 17 contacts,
The deformed portion 17A and the joining flange portion 13 are sandwiched. Further, since the outer peripheral edge portion 14 of the joining flange portion 13 generates a gap H and does not contact the joining flange portion 17 to the tip end, the joining flange portion 17 is not pressed in the radial direction. When the diaphragm 11 is swaged,
Through the joining flanges 13 and 17, the sheet is clamped without receiving a force that moves inward in the radial direction.
そして、ダイアフラム11が挟持される部位11Aは、ダ
イアフラム11外周縁の端部から内側へ入りこんだ位置で
あり、その挟持部位11Aでは、ダイアフラム11のゴム材
料がダイアフラム11の半径方向の外方及び内方へ逃げ
る。The portion 11A where the diaphragm 11 is clamped is a position where the rubber material of the diaphragm 11 is radially outward and inward of the diaphragm 11 at the clamping portion 11A. Run away.
そのため、半径方向外方へ逃げたゴム材料により、挟
持部位11Aから外側の部位11Bでは挟持部位11Aより厚肉
となり、その厚肉の外側部位11Bが既述の変形部17Aと接
合フランジ部13との引つ掛かり部位となることから、ダ
イアフラム11のずれや芯ずれが抑えられて、両接合フラ
ンジ部13・17の間にダイアフラム11が取り付けられるこ
ととなる。Therefore, due to the rubber material that has escaped radially outward, the portion 11B outside the holding portion 11A becomes thicker than the holding portion 11A, and the thick outer portion 11B is connected to the deformed portion 17A and the joining flange portion 13 described above. Therefore, the displacement and the misalignment of the diaphragm 11 are suppressed, and the diaphragm 11 is attached between the joining flange portions 13 and 17.
なお、挟持部位11Aから内側へ逃げた余剰のゴム材料
は、挟持部位11Aより内側の部位11Cの近傍を単に厚肉と
するだけであり、ダイアフラム11のずれや芯ずれを発生
させる虞れが無い。The excess rubber material that has escaped from the holding portion 11A to the inside only increases the thickness of the vicinity of the portion 11C inside the holding portion 11A, and there is no possibility that the diaphragm 11 may be misaligned or misaligned. .
ちなみに、この時のダイアフラム11の各部位11A・11B
・11Cの圧縮率は、11C＜11B＜11Aとなる。By the way, each part 11A, 11B of the diaphragm 11 at this time
・ The compression ratio of 11C is 11C <11B <11A.
また、実施例の取付構造では、接合フランジ部13の外
周縁部14をかしめる際に使用する金型30において、上型
31のかしめ用凹部31aを全て下方に曲率中心を有する曲
面から構成するものを示したが、第４・５図に示すよう
に、内側内周面の所定部位を平面形状Ｐや実施例と逆の
曲率の曲面形状Ｒから構成しても良い。Further, in the mounting structure of the embodiment, the upper mold is used in the mold 30 used for caulking the outer peripheral edge portion 14 of the joining flange portion 13.
Although all the caulking concave portions 31a of 31 have a curved surface having a center of curvature below, as shown in FIGS. 4 and 5, a predetermined portion of the inner inner peripheral surface is formed in a reverse shape to the plane shape P or the embodiment. May be formed from the curved surface shape R having the curvature of.
さらに、実施例の取付構造では、取り付けるダイアフ
ラム11として二層構造のものを示したが、勿論、一層の
ものや基布を埋設させたダイアフラムを使用しても良
い。Further, in the mounting structure of the embodiment, the diaphragm 11 to be mounted has a two-layer structure, but it is needless to say that a single layer or a diaphragm in which a base cloth is embedded may be used.
＜発明の作用・効果＞ この発明に係る取付構造では、一方の接合フランジ部
の外周縁部が、他方の接合フランジ部の外周面に接触す
ることなく、先端だけをダイアフラム外周縁の端部より
内側部位で他方の接合フランジ部に当接させるように、
他方の接合フランジ部に対して、当接部位を除いて、隙
間を生じさせてかしめられている。すなわち、一方の接
合フランジ部の外周縁部は、所定の隙間を生じさせて、
先端まで他方の接合フランジ部に対して接触しないこと
から、他方の接合フランジ部をその半径方向に押圧せ
ず、その結果、ダイアフラムは、かしめ時、両接合フラ
ンジ部を介して、半径方向の内方へ移動するような力を
受けず、その状態で、ダイアフラムの外周縁が、半径方
向へ移動することなく、一方の接合フランジ部の外周縁
部のかしめにより、他方の接合フランジ部における前記
外周縁部の当接する部位が変形し、その変形部と外周縁
部を有する接合フランジ部とで挟持されることとなる。<Effects and Effects of the Invention> In the mounting structure according to the present invention, the outer edge of one of the joining flanges does not contact the outer peripheral surface of the other joining flange, and only the tip is moved from the end of the outer edge of the diaphragm. So that it contacts the other joint flange at the inner part,
The other joining flange portion is swaged with a gap except for the contact portion. That is, the outer peripheral edge of one of the joining flanges generates a predetermined gap,
Since the tip does not contact the other joint flange portion, the other joint flange portion is not pressed in the radial direction. As a result, the diaphragm, when swaged, passes through both joint flange portions in the radial direction. In this state, the outer peripheral edge of the diaphragm does not move in the radial direction, and the outer peripheral edge of one of the joining flange portions is swaged without being moved in the radial direction. The contacting portion of the peripheral portion is deformed, and is sandwiched between the deformed portion and the joining flange having the outer peripheral portion.
そして、ダイアフラムが挟持される部位は、ダイアフ
ラム外周縁の端部から内側へ入りこんだ位置であり、そ
の挟持部位では、ダイアフラムのゴム材料がダイアフラ
ムの半径方向の外方及び内方へ逃げる。The portion where the diaphragm is clamped is a position where it enters inside from the end of the outer peripheral edge of the diaphragm, and at the clamping portion, the rubber material of the diaphragm escapes outward and inward in the radial direction of the diaphragm.
そのため、半径方向外方へ逃げたゴム材料により、挟
持部位から外側の部位ではダイアフラムが挟持部位より
厚肉となり、その厚肉の外側部位が既述の変形部と外周
縁部を有する接合フランジ部との引っ掛かり部位となる
ことから、かしめ時に、ダイアフラムのずれや芯ずれが
抑えられて、両接合フランジ部の間にダイアフラムが取
り付けられることとなる。Therefore, due to the rubber material escaping outward in the radial direction, the diaphragm becomes thicker at the portion outside the holding portion than at the holding portion, and the outer portion of the thick portion has the aforementioned deformed portion and the joining flange portion having the outer peripheral edge. Therefore, the displacement and the misalignment of the diaphragm during crimping are suppressed, and the diaphragm is attached between the two joining flange portions.
なお、ダイアフラムの挟持部位の内側において、挟持
部位から内側へ逃げた余剰のゴム材料は、挟持部位から
内側の部位の近傍を単に厚肉とするだけであり、ダイア
フラムのずれや芯ずれを招く虞れが無い。In addition, the excess rubber material that has escaped from the holding portion to the inside inside the holding portion of the diaphragm simply thickens the vicinity of the portion inside from the holding portion, and may cause the displacement and the misalignment of the diaphragm. There is not.
したがつて、この発明に係るダイアフラムの取付構造
では、製品のコストアツプを招くような、一方の接合フ
ランジ部に凹部を設けたり、ダイアフラム外周縁にリツ
プ部を設けたりすることなく、しわや芯ずれの発生を防
止して、ダイアフラムを取り付けることができる。Therefore, in the diaphragm mounting structure according to the present invention, wrinkles or misalignment can be achieved without providing a concave portion on one of the joining flange portions or providing a lip portion on the outer peripheral edge of the diaphragm, which would increase the cost of the product. Can be prevented and the diaphragm can be attached.
第１図は、この発明の一実施例の要部を示す断面図、 第２図は、同実施例が使用される燃料圧力調整弁の断面
図、 第３図は、同実施例のかしめ時の状態を示す金型の断面
図、 第４図は、かしめ時に使用する金型の他の例を示す図、 第５図は、かしめ時に使用する金型のさらに他の例を示
す図、 第６図は、従来の取付構造を示す断面図である。 11……ダイアフラム、 12……上カバー部材、 13……接合フランジ部、 14……外周縁部、 16……下カバー部材、 17……接合フランジ部、FIG. 1 is a cross-sectional view showing a main part of an embodiment of the present invention, FIG. 2 is a cross-sectional view of a fuel pressure regulating valve in which the embodiment is used, and FIG. FIG. 4 is a view showing another example of a mold used for caulking, FIG. 5 is a view showing still another example of a mold used for caulking, FIG. 6 is a sectional view showing a conventional mounting structure. 11 ... diaphragm, 12 ... upper cover member, 13 ... joint flange, 14 ... outer peripheral edge, 16 ... lower cover member, 17 ... joint flange,
Claims (1)
のそれぞれの接合フランジ部の間に配置され、前記一方
の接合フランジ部の外周縁部が前記他方の接合フランジ
部を取り囲むように内側にかしめられることにより、前
記ダイアフラムが前記両接合フランジ部間に挟持されて
取り付けられるダイアフラムの取付構造であつて、 前記一方の接合フランジ部の外周縁部が、前記他方の接
合フランジ部の外周面に接触することなく、先端だけを
前記ダイアフラム外周縁の端部より内側部位で前記他方
の接合フランジ部に当接させるように、前記他方の接合
フランジ部に対して、前記当接部位を除いて、隙間を生
じさせてかしめられていることを特徴とするダイアフラ
ムの取付構造。An upper and lower surface of an outer peripheral edge of a diaphragm is disposed between joining flange portions of two members, and an outer peripheral edge of one of the joining flange portions is inwardly surrounded by the other joining flange portion. A diaphragm mounting structure in which the diaphragm is sandwiched and mounted between the two joining flange portions by being caulked, wherein an outer peripheral edge of the one joining flange portion is attached to an outer peripheral surface of the other joining flange portion. Without contact, so that only the tip abuts on the other joint flange portion at a position inside the end of the diaphragm outer peripheral edge, with respect to the other joint flange portion, excluding the contact portion, A diaphragm mounting structure characterized by being caulked with a gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159883A JP2775176B2 (en) | 1989-06-22 | 1989-06-22 | Diaphragm mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159883A JP2775176B2 (en) | 1989-06-22 | 1989-06-22 | Diaphragm mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0324369A JPH0324369A (en) | 1991-02-01 |
| JP2775176B2 true JP2775176B2 (en) | 1998-07-16 |
Family
ID=15703274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1159883A Expired - Fee Related JP2775176B2 (en) | 1989-06-22 | 1989-06-22 | Diaphragm mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2775176B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7025915B2 (en) | 2017-12-18 | 2022-02-25 | 株式会社キッツエスシーティー | Diaphragm valve |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881997A (en) * | 1997-11-24 | 1999-03-16 | Fujikin Incorporated | Metal diaphragm type valve |
| JP4765746B2 (en) * | 2006-04-17 | 2011-09-07 | 日立金属株式会社 | Shut-off valve device and mass flow control device incorporating the same |
| JP5090824B2 (en) * | 2007-08-29 | 2012-12-05 | 株式会社ケーヒン | Pressure reducing valve |
| US7845820B2 (en) * | 2008-10-02 | 2010-12-07 | Life+Gear, Inc. | Multipurpose lighting device with electronic glow stick |
| JP5688705B2 (en) * | 2010-04-07 | 2015-03-25 | 株式会社フジキン | Fluid controller |
| CN105201798B (en) * | 2015-09-16 | 2017-12-08 | 吴忠仪表有限责任公司 | A kind of water pressurizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527508A (en) * | 1978-08-12 | 1980-02-27 | Fuji Kikai Seizo Kk | Coupling method of plurality of member requiring airtightness |
| JPS626923U (en) * | 1985-06-29 | 1987-01-16 |
-
1989
- 1989-06-22 JP JP1159883A patent/JP2775176B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7025915B2 (en) | 2017-12-18 | 2022-02-25 | 株式会社キッツエスシーティー | Diaphragm valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0324369A (en) | 1991-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |