JPS6243177Y2 - - Google Patents
Info
- Publication number
- JPS6243177Y2 JPS6243177Y2 JP1981127501U JP12750181U JPS6243177Y2 JP S6243177 Y2 JPS6243177 Y2 JP S6243177Y2 JP 1981127501 U JP1981127501 U JP 1981127501U JP 12750181 U JP12750181 U JP 12750181U JP S6243177 Y2 JPS6243177 Y2 JP S6243177Y2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- mounting
- separation
- flexible
- protrusions
- 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
Links
- 238000000926 separation method Methods 0.000 claims description 18
- 230000013011 mating Effects 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Diaphragms And Bellows (AREA)
Description
【考案の詳細な説明】
本考案はダイアフラムに関する。更に詳しく
は、ダイアフラムバルブ等に用いられてダイアフ
ラムの可撓部の取付部側が摩耗損傷しないように
したダイアフラムに関する。[Detailed Description of the Invention] The present invention relates to a diaphragm. More specifically, the present invention relates to a diaphragm that is used in a diaphragm valve or the like and prevents wear and damage on the mounting side of the flexible portion of the diaphragm.
本考案に関する先行技術としては第１図に示す
もの（実公昭53−5975号）がある。第１図に示す
ダイアフラムは取付部１が両側のケース３，４の
周縁部５，６により挾持されているものである。
このダイアフラムは取付部の構造としてはすぐれ
ているが、ダイアフラムの可撓部７の取付部１近
傍から摩耗損傷する問題がある。即ち、ダイアフ
ラムの取付部１と可撓部７との境界はダイアフラ
ムが作動するときたえず屈曲するので、応力集中
を防止するためこの屈曲に対応するケース３，４
側が曲面を成す取付端部の離反面８に形成されて
いる。この結果、ダイアフラムの側面と取付端部
の離反面８との間はくさび状に空間を形成するこ
とになる。そして、ダイアフラムが図示状態で上
下に移動するたびに、当該空間をつぶすようにし
てダイアフラムは交互に上下の取付端部の離反面
８に圧接する。このような態様で作動流体中にダ
スト等が混在していると、ダイアフラムがくさび
状空間をつぶすようにして取付端部の離反面８に
圧接するときダイアフラムの側面と取付端部の離
反面８との間からダスト等を取付部１側に侵入さ
せることになる。そして、ダイアフラムが取付部
の離反面８にたえず圧接を繰返すとダイアフラム
はダスト等により研摩されるようにして摩耗損傷
することになる。特に、ダイアフラムの可撓部７
は、膜状に形成されているから、損傷を早めダイ
アフラムとしての耐久性に欠点を生ずる。 As a prior art related to the present invention, there is the one shown in FIG. 1 (Utility Model Publication No. 53-5975). In the diaphragm shown in FIG. 1, a mounting portion 1 is held between peripheral edges 5 and 6 of cases 3 and 4 on both sides.
Although this diaphragm has an excellent structure as an attachment part, there is a problem in that the flexible part 7 of the diaphragm is worn and damaged from the vicinity of the attachment part 1. That is, since the boundary between the attachment part 1 and the flexible part 7 of the diaphragm is constantly bent whenever the diaphragm is operated, the cases 3 and 4 corresponding to this bending are required to prevent stress concentration.
It is formed on the separation surface 8 of the mounting end portion which has a curved side. As a result, a wedge-shaped space is formed between the side surface of the diaphragm and the separation surface 8 of the mounting end. Each time the diaphragm moves up and down in the illustrated state, the diaphragm alternately presses against the separating surfaces 8 of the upper and lower mounting ends so as to collapse the space. If dust or the like is mixed in the working fluid in this manner, when the diaphragm presses against the separation surface 8 of the mounting end so as to collapse the wedge-shaped space, the side surface of the diaphragm and the separation surface 8 of the installation end may Dust etc. will be allowed to enter the mounting portion 1 side from between the two. If the diaphragm is repeatedly pressed against the separation surface 8 of the mounting portion, the diaphragm will be abraded by dust and the like and will be worn out and damaged. In particular, the flexible part 7 of the diaphragm
Since the diaphragm is formed in the form of a membrane, it tends to be damaged quickly and has a drawback in its durability as a diaphragm.
本考案は上述のような問題点に鑑みなされたも
ので、その目的はダイアフラムが可撓部の取付部
近傍より損傷するのを効果的に防止するものであ
る。このため、本考案は次のように構成されてい
る。すなわち、ケース又は取付板に挟持される取
付部の近傍で可撓部の両面に、取付部を挟持する
相手部材の取付接面端部に形成された離反面のそ
れぞれと密接する凸起部を設けた構成となすもの
である。 The present invention was devised in view of the above-mentioned problems, and its purpose is to effectively prevent the diaphragm from being damaged in the vicinity of the attachment portion of the flexible portion. Therefore, the present invention is constructed as follows. That is, in the vicinity of the mounting part held between the case or the mounting plate, protrusions are provided on both sides of the flexible part that come into close contact with the separation surfaces formed at the end of the mounting surface of the mating member that holds the mounting part. The configuration is as follows.
上述のように構成された本考案は次のような特
有の効果を生ずる。 The present invention configured as described above produces the following unique effects.
ダイアフラムの可撓部の取付部の近傍の両面に
付設された凸起部の先端部が、相手部材の取付接
面端部に形成された離反面のそれぞれと常に密接
しているから、作動流体中に含まれているダスト
等がダイアフラム側面と相手部材側面との間から
取付部側へ侵入することを阻止される。従つて、
ダイアフラムが変動して相手部材面に接面するご
とく曲面しても、ダスト等がダイアフラムと相手
部材との間隙に蓄積しないから、ダスト等によつ
てダイアフラムの可撓部が摩耗して損傷されるこ
とを効果的に防止される。更に、ダイアフラムに
設けられた凸起部はダイアフラムが変形しても可
撓性を相手部材に接面しないような形に保持させ
ようとするから、可撓部が相手部材に接面して摩
耗されるのを効果的に防止する。 Since the tips of the protrusions attached to both sides of the flexible part of the diaphragm near the mounting part are always in close contact with each of the separating surfaces formed at the end of the mounting surface of the mating member, the working fluid Dust and the like contained therein are prevented from entering the mounting portion side from between the side surface of the diaphragm and the side surface of the mating member. Therefore,
Even if the diaphragm moves and curves into contact with the surface of the mating member, dust, etc. will not accumulate in the gap between the diaphragm and the mating member, so the flexible portion of the diaphragm will be worn out and damaged by the dust, etc. This is effectively prevented. Furthermore, even if the diaphragm is deformed, the convex part provided on the diaphragm tries to maintain its flexibility in a form that does not contact the mating member, so the flexible part contacts the mating member and wears out. effectively prevent it from happening.
以下、本考案の一実施例を図面に基づいて詳細
に説明する。第２図はダイアフラムの外周の取付
部側を示す一部断面図である。１０はゴム状弾性
材製のダイアフラムであり、ダイアフラム１０の
外周側には取付部１２を有し、その内周側は膜状
の可撓部１１を有している。更に、可撓部１１の
取付部１２側近傍には両面に凸起した環状の凸起
部１６，１６′が形成されている。更に、その内
周側にも両面に環状の小凸起部１８，１８′が設
けられている。又、各ケース１３，１３′は外周
に取付接面１５，１５′を有し、この取付接面を
互いに対面するようにして内面側に空室２０を形
成している。 Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. FIG. 2 is a partial sectional view showing the mounting portion side of the outer periphery of the diaphragm. Reference numeral 10 denotes a diaphragm made of a rubber-like elastic material.The diaphragm 10 has a mounting portion 12 on its outer circumferential side and a membrane-like flexible portion 11 on its inner circumferential side. Furthermore, annular protrusions 16 and 16' are formed on both surfaces of the flexible portion 11 near the mounting portion 12 side. Furthermore, small annular protrusions 18, 18' are provided on both surfaces of the inner peripheral side. Further, each case 13, 13' has mounting surfaces 15, 15' on the outer periphery, and these mounting surfaces face each other to form a cavity 20 on the inner surface side.
ケース１３，１３′の外周縁の取付接面１５，
１５′の端部はダイアフラム１０より離反するよ
うに曲面をした離反面１４，１４′を形成してい
る。そして、ダイアフラム１０は取付部１２がケ
ース１３，１３′の取付接面１５，１５′側により
挾持されて空室２０を２分割している。更に、ダ
イアフラム１０に設けられた凸起部１６，１６′
は先端側が離反面１４，１４′に密封的に接面し
ている。 Mounting surface 15 on the outer periphery of the cases 13, 13',
The ends of the diaphragm 15' form curved separation surfaces 14, 14' so as to be separated from the diaphragm 10. The mounting portion 12 of the diaphragm 10 is held between the mounting surfaces 15 and 15' of the cases 13 and 13', dividing the chamber 20 into two. Furthermore, the protrusions 16, 16' provided on the diaphragm 10
The distal end side is in sealing contact with the separating surfaces 14, 14'.
このように構成されたダイアフラム１０は一方
より作動圧力を受けると受圧方向に変形する。し
かし、ダイアフラム１０の可撓部１１の取付部１
２近傍には凸起部１６，１６′が設けられて凸起
部１６，１６′先端側が離反面１４，１４′に密封
的に接面しているから、離反面１４，１４′と可
撓部１１側面との間にくさび状の空間を形成しな
い。 The diaphragm 10 configured in this manner deforms in the pressure receiving direction when receiving operating pressure from one side. However, the mounting portion 1 of the flexible portion 11 of the diaphragm 10
2, protrusions 16, 16' are provided near the protrusions 16, 16', and the tips of the protrusions 16, 16' are in sealing contact with the separation surfaces 14, 14'. A wedge-shaped space is not formed between the portion 11 and the side surface.
従つて、ダイアフラム１０が作動圧力を受けて
ケース１３，１３′内面側に交互に移動しても作
動圧力流体中に含まれるダスト等は離反面１４，
１４′と可撓部１１側面との間に侵入して付着さ
れることがない。更に、小凸起部１８，１８′を
設けた態様は、可撓部１１がケース１３，１３′
内面に接面する場合に摩耗するのを防止すること
ができる。 Therefore, even if the diaphragm 10 alternately moves toward the inner surfaces of the cases 13 and 13' in response to the operating pressure, dust and the like contained in the operating pressure fluid will be removed from the separation surfaces 14 and 13'.
14' and the side surface of the flexible portion 11 and will not be attached thereto. Furthermore, in the embodiment in which the small convex portions 18, 18' are provided, the flexible portion 11 is attached to the cases 13, 13'.
This can prevent wear when coming into contact with the inner surface.
次に第３図は第２図と構成に於てはほぼ同じも
のである。相違する点はケース１３，１３′の取
付接面１５，１５′により内周面に至る曲げの角
度が略直角を成すもので、この角部を曲面にした
離反面１４，１４′に形成したものである。この
場合は、ダイアフラム１０に小凸起部がなく凸起
部のみで、凸起部１６，１６′の先端側がケース
１３，１３′の離反面１４，１４′に密封的に接面
している。その結果、離反面１４，１４′と可撓
部１１側面との間でくさび状の空間を形成するこ
とがない。従つて、ダイアフラム１０が作動して
も、ダスト等が、可撓部１１側面と離反面１４，
１４′との間隙に侵入することが防止できるか
ら、ダスト等がダイアフラムに付着してダイアフ
ラムを摩耗損傷するのを防止する効果が期待でき
る。 Next, FIG. 3 is almost the same in structure as FIG. 2. The difference is that the angle of bending from the mounting surfaces 15, 15' of the cases 13, 13' to the inner circumferential surface is approximately a right angle, and this corner is formed into a curved separation surface 14, 14'. It is something. In this case, the diaphragm 10 has no small protrusions, only protrusions, and the tips of the protrusions 16, 16' are in sealing contact with the separation surfaces 14, 14' of the cases 13, 13'. . As a result, a wedge-shaped space is not formed between the separation surfaces 14, 14' and the side surface of the flexible portion 11. Therefore, even if the diaphragm 10 operates, dust and the like will not be absorbed by the side surface of the flexible portion 11 and the separation surface 14.
Since it is possible to prevent dust from entering the gap between the diaphragm 14' and the diaphragm 14', the effect of preventing dust and the like from adhering to the diaphragm and causing wear and tear on the diaphragm can be expected.
第４図はダイアフラム１０の中央の取付部３１
の両側に出力軸用の取付板３０，３０′を設けた
態様である。取付板３０，３０′の外周縁３２，
３２′はダイアフラム１０の可撓部１１を損傷し
ないように曲面の離反面３３，３３′を形成して
いる。この場合にも、離反面３３，３３′に対応
する可撓部１１の両側面に環状の凸起部３４，３
４′を設け、凸起部３４，３４′の先端側を離反面
３３，３３′に密封的に接面させることによつ
て、離反面３３，３３′と可撓部１１側面との間
にくさび状の空間を形成させないようにできる。
従つて、離反面３３，３３′と可撓部１１側面と
の間にダスト等が侵入することがなく、ダイアフ
ラムが作動して離反面３３，３３′と接面しても
ダスト等によつてダイアフラム１０が摩耗損傷さ
れないような効果が期待できる。 FIG. 4 shows the central mounting portion 31 of the diaphragm 10.
In this embodiment, output shaft mounting plates 30, 30' are provided on both sides of the output shaft. The outer peripheral edge 32 of the mounting plate 30, 30',
32' forms curved separating surfaces 33, 33' so as not to damage the flexible portion 11 of the diaphragm 10. Also in this case, annular protrusions 34 and 3 are formed on both sides of the flexible portion 11 corresponding to the separation surfaces 33 and 33'.
4' and by bringing the tip sides of the convex parts 34, 34' into sealing contact with the separating surfaces 33, 33', there is a gap between the separating surfaces 33, 33' and the side surface of the flexible part 11. This can prevent the formation of wedge-shaped spaces.
Therefore, dust etc. do not enter between the separation surfaces 33, 33' and the side surfaces of the flexible portion 11, and even if the diaphragm operates and comes into contact with the separation surfaces 33, 33', the dust etc. The effect that the diaphragm 10 is not damaged by wear can be expected.
第１図は従来のダイアフラムの取付部を示す一
部断面図、第２図は本考案の一実施例のダイアフ
ラムの取付部を示す一部断面図、第３図は本考案
の他の実施例のダイアフラムの取付部を示す一部
断面図、第４図は本考案の一実施例のダイアフラ
ムの中央の取付部を示す一部断面図である。
１……取付部、３，４……ケース、５，６……
周縁部、７……可撓部、８……離反面、１０……
ダイアフラム、１１……可撓部、１２……取付
部、１３，１３′……ケース、１４，１４′……離
反面、１５，１５′……取付接面、１６，１６′…
…凸起部、１８，１８′……小凸起部、２０……
空室、３０，３０′……取付板、３１……取付
部、３２，３２′……外周縁、３３，３３′……離
反面、３４，３４′……凸起部。
Fig. 1 is a partial sectional view showing the mounting part of a conventional diaphragm, Fig. 2 is a partial sectional view showing the diaphragm mounting part of one embodiment of the present invention, and Fig. 3 is another embodiment of the present invention. FIG. 4 is a partial cross-sectional view showing the central mounting portion of the diaphragm according to an embodiment of the present invention. 1... Mounting part, 3, 4... Case, 5, 6...
Peripheral part, 7...Flexible part, 8... Separation surface, 10...
Diaphragm, 11... Flexible part, 12... Mounting part, 13, 13'... Case, 14, 14'... Separating surface, 15, 15'... Mounting contact surface, 16, 16'...
...Convex part, 18, 18'...Small convex part, 20...
Empty chamber, 30, 30'... Mounting plate, 31... Mounting portion, 32, 32'... Outer periphery, 33, 33'... Separating surface, 34, 34'... Convex portion.
Claims (1)
持される取付部１２，３１と膜状を呈する可撓部
１１とを有し、前記可撓部１１の前記取付部１
２，３１の近傍の両面に、前記取付部１２，３１
を挟持する相手部材の取付接面端部に形成された
離反面１４，１４′，３３，３３′のそれぞれと密
接する凸起部１６，１６′，３４，３４′を付した
ダイアフラム。 The mounting part 1 of the flexible part 11 has mounting parts 12 and 31 that are held between the cases 13 and 13' or the mounting plates 30 and 30', and a flexible part 11 that has a membrane shape.
The mounting portions 12, 31 are mounted on both sides near the mounting portions 12, 31.
A diaphragm provided with protrusions 16, 16', 34, 34' that come into close contact with separation surfaces 14, 14', 33, 33' formed at the ends of the attachment surfaces of the mating member that sandwich the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12750181U JPS5833862U (en) | 1981-08-28 | 1981-08-28 | diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12750181U JPS5833862U (en) | 1981-08-28 | 1981-08-28 | diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5833862U JPS5833862U (en) | 1983-03-05 |
| JPS6243177Y2 true JPS6243177Y2 (en) | 1987-11-09 |
Family
ID=29921227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12750181U Granted JPS5833862U (en) | 1981-08-28 | 1981-08-28 | diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5833862U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6000416A (en) * | 1997-06-04 | 1999-12-14 | Furon Company | Compact valve with rolling diaphragm poppet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538464B2 (en) * | 1973-05-17 | 1978-03-29 | ||
| JPS5547001A (en) * | 1978-09-29 | 1980-04-02 | Nissin Kogyo Kk | Reservoir for two-wheeled vehicle master cylinder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939237Y2 (en) * | 1976-07-07 | 1984-11-01 | エヌオーケー株式会社 | flexible membrane body |
| JPS5656918U (en) * | 1979-10-11 | 1981-05-16 | ||
| JPS614746Y2 (en) * | 1979-12-26 | 1986-02-14 |
-
1981
- 1981-08-28 JP JP12750181U patent/JPS5833862U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538464B2 (en) * | 1973-05-17 | 1978-03-29 | ||
| JPS5547001A (en) * | 1978-09-29 | 1980-04-02 | Nissin Kogyo Kk | Reservoir for two-wheeled vehicle master cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5833862U (en) | 1983-03-05 |
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