JPS598700B2 - diaphragm - Google Patents
diaphragmInfo
- Publication number
- JPS598700B2 JPS598700B2 JP12185475A JP12185475A JPS598700B2 JP S598700 B2 JPS598700 B2 JP S598700B2 JP 12185475 A JP12185475 A JP 12185475A JP 12185475 A JP12185475 A JP 12185475A JP S598700 B2 JPS598700 B2 JP S598700B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- base fabric
- warp
- rubber
- base
- 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
Landscapes
- Diaphragms And Bellows (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明はダイヤフラムに係り、特にダイヤフラムの基布
のバイアス方向の伸び、歪を少なくし、使用時の変形を
なくするに好適な２枚の基布を用いたダイヤフラムに関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a diaphragm, and more particularly to a diaphragm using two base fabrics suitable for reducing elongation and distortion in the bias direction of the base fabric of the diaphragm and eliminating deformation during use. .
ダイヤフラムは従来より極めて広範な分野で数多く用い
られている。Diaphragms have traditionally been used in a wide variety of fields.
一般のダイヤフラムは気密性をもたせる為に通常ゴム質
（フッ素ゴム、ニトリルゴム、フロロシリコンゴム等）
の部材と耐圧強度、引張強度をもたせる為の布状の繊維
質の部材（基布）を適当な方法で接合したものである。
この基布は通常は平織の薄い布であり、従来のダイヤフ
ラムは総て一枚の基布を使用したものである。従って、
従来のダイヤフラムは基布の経糸、緯糸方向には伸び、
歪は少なかつたが、バイアス方向の力に対しては極めて
弱く、伸び量、歪量も大きなものである。本発明は従来
技術の欠点をなくし、バイアス方向の力に対しても強い
ダイヤフラムを提供するにある。General diaphragms are usually made of rubber (fluororubber, nitrile rubber, fluorosilicone rubber, etc.) to provide airtightness.
This material is joined by an appropriate method to a cloth-like fibrous material (base fabric) to provide pressure resistance and tensile strength.
This base fabric is usually a thin, plain-woven fabric, and all conventional diaphragms use a single piece of base fabric. Therefore,
Conventional diaphragms stretch in the warp and weft directions of the base fabric,
Although the strain was small, it was extremely weak against force in the bias direction, and the amount of elongation and strain were large. The present invention eliminates the drawbacks of the prior art and provides a diaphragm that is strong against forces in the bias direction.
本発明は、二枚の基布を用い、各基布の経糸の方向を各
々４５０ずれるようにして、どの方向に対しても引張応
力を高くし、伸び、歪の量を少なくしたものである。次
に本発明を図をもつて説明する。The present invention uses two base fabrics, and the warp directions of each base fabric are shifted by 450 degrees to increase the tensile stress in any direction and reduce the amount of elongation and distortion. . Next, the present invention will be explained using figures.
第１図は従来のダイヤフラムの一部断面図である。基布
はダイヤフラムの中間にしたものを示している。通常の
ダイヤフラムでは基布は片側についている。１はダイヤ
フラム本体、２はゴム質、３は基布を示している。FIG. 1 is a partial cross-sectional view of a conventional diaphragm. The base fabric is shown in the middle of the diaphragm. In a normal diaphragm, the base fabric is attached to one side. 1 is a diaphragm body, 2 is a rubber material, and 3 is a base fabric.
基布は平織で経糸と緯糸よりなつている。この為、基布
の経糸方向、緯糸方向即ちＡ−Ａ、Ｂ−Ｂの方向の力に
対しては強く、伸びや歪も少ない。しかしバイアス方向
Ｃ−Ｃ、Ｄ−Ｄの力に対しては極めて弱く、伸び、歪は
非常に大きい。ダイヤフラムを使用した機械部分は通常
空気圧や液体圧を入力とした何らかの制御機構をもたせ
たものが普通である。したがつて、従来のダイヤフラム
では、ダイヤフラムを締付ける時や固定する際の歪や、
バネによるかたより等に起因したバイアス方向の歪はそ
の機械部品の性能を大巾に損うものとなる。また、これ
までダイヤフラムの基布のバイアス方向にやぷれるとい
つた例は数多くあり、決して経糸、緯糸方向には破壊し
ていない。この場合は基布の強度を上げれば、一応は破
れに対しては解決できるが、普通はダイヤフラム・ 性
能を損うことになる。第３図は本発明になるダイヤフラ
ムの一部断面図である。The base fabric is plain woven and has warp and weft threads. Therefore, it is strong against forces in the warp and weft directions of the base fabric, that is, in the A-A and B-B directions, and has little elongation or distortion. However, it is extremely weak against forces in the bias directions CC and DD, and elongation and distortion are extremely large. Mechanical parts that use diaphragms usually have some kind of control mechanism that uses air pressure or liquid pressure as input. Therefore, with conventional diaphragms, distortion occurs when tightening or fixing the diaphragm,
Distortion in the bias direction due to bias caused by a spring, etc., greatly impairs the performance of the mechanical component. Furthermore, there have been many cases where the base fabric of the diaphragm has broken in the bias direction, but has never broken in the warp or weft directions. In this case, increasing the strength of the base fabric can solve the problem of tearing, but it usually impairs the performance of the diaphragm. FIG. 3 is a partial cross-sectional view of the diaphragm according to the present invention.
本実施例でも基布はゴムの中間にある例を示した。ダイ
ヤフラムは二枚の基布４、５を各々の経糸が４５０ずれ
るようにしたものである。・ 従つて、従来の一枚の基
布のダイヤフラムに見られるバイヤス方向の欠点はなく
、どの方向に対しても伸び、歪は非常に少なくなり、い
わゆるバイアス方向というものを無くすることができる
。また基布を二枚使用しても、構成繊維経を適当に選ぶ
ことによつて、本来の性能は容易に、充分に維持するこ
とができる。更に、全体の引張強度を大きくすることに
なり、破れつ圧力も高まり耐久性を向上させることがで
きる。尚、従来のダイヤフラムの基布は平織の他にあや
織もあるが、このものはバイアス方向の力には弱く、単
なる織り方だけでは解決は困難である。This example also shows an example in which the base fabric is in the middle of rubber. The diaphragm is made up of two base fabrics 4 and 5 whose warp threads are offset by 450 degrees. - Therefore, there is no disadvantage in the bias direction seen in conventional diaphragms made of a single piece of base fabric, and it stretches in any direction, resulting in very little distortion, and the so-called bias direction can be eliminated. Furthermore, even if two base fabrics are used, the original performance can be easily and sufficiently maintained by appropriately selecting the constituent fiber diameter. Furthermore, the overall tensile strength is increased, the tearing pressure is also increased, and durability can be improved. In addition to plain weave, conventional diaphragm base fabrics include twill weave, but these are weak against forces in the bias direction, and it is difficult to solve the problem by simply weaving.
又、繊維密度をいたずらに高くしても、ゴムと基布の接
合方法、仕土りに問題があり、場合によつては必要な特
性を損うことになる。本発明は、上記した他に基布をダ
イヤフラム片側にした場合も同様である。Furthermore, even if the fiber density is increased unnecessarily, there will be problems with the method of joining the rubber and the base fabric and the finishing process, and in some cases, necessary properties will be impaired. The present invention is similar to the case where the base fabric is placed on one side of the diaphragm.
第１図は従来ダイヤフラムの一部断面図、第２図は第１
図の一断面図、第３図は本発明になるダイヤフラムの一
部断面図、第４図は第３図の−断面図である。
符号の説明、１・・・・・・ダイヤフラム本体、２・・
・・・・ゴム質、３・・・・−・基布。Figure 1 is a partial cross-sectional view of a conventional diaphragm, and Figure 2 is a partial cross-sectional view of a conventional diaphragm.
3 is a partial cross-sectional view of the diaphragm according to the present invention, and FIG. 4 is a cross-sectional view taken from - in FIG. 3. Explanation of symbols, 1...Diaphragm body, 2...
...Rubber, 3...--Base fabric.
Claims (1)
布の少なくとも片面側にゴムを結合したダイヤフラムに
おいて、前記基布の経糸方向が各々４５°ずれるように
二枚の基布を重ね合せてなることを特徴とするダイヤフ
ラム。1. In a diaphragm in which rubber is bonded to at least one side of a base fabric consisting of a warp and a weft woven approximately at right angles to the warp, two base fabrics are overlapped so that the warp directions of the base fabrics are shifted by 45 degrees from each other. A diaphragm characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12185475A JPS598700B2 (en) | 1975-10-11 | 1975-10-11 | diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12185475A JPS598700B2 (en) | 1975-10-11 | 1975-10-11 | diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5246252A JPS5246252A (en) | 1977-04-12 |
| JPS598700B2 true JPS598700B2 (en) | 1984-02-27 |
Family
ID=14821565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12185475A Expired JPS598700B2 (en) | 1975-10-11 | 1975-10-11 | diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS598700B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62128500U (en) * | 1986-02-05 | 1987-08-14 | ||
| JPH03120896U (en) * | 1990-03-24 | 1991-12-11 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54179356U (en) * | 1978-06-09 | 1979-12-18 |
-
1975
- 1975-10-11 JP JP12185475A patent/JPS598700B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62128500U (en) * | 1986-02-05 | 1987-08-14 | ||
| JPH03120896U (en) * | 1990-03-24 | 1991-12-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5246252A (en) | 1977-04-12 |
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