JPS6138238A - Membrane for air spring device - Google Patents
Membrane for air spring deviceInfo
- Publication number
- JPS6138238A JPS6138238A JP16042284A JP16042284A JPS6138238A JP S6138238 A JPS6138238 A JP S6138238A JP 16042284 A JP16042284 A JP 16042284A JP 16042284 A JP16042284 A JP 16042284A JP S6138238 A JPS6138238 A JP S6138238A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- air spring
- spring device
- membrane body
- reinforcing cord
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/0409—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the wall structure
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は空気バネ装置用膜体の改良に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to improvements in membrane bodies for air spring devices.
車両用懸架装置等に用いられる空気バネ装置の膜体は、
一般に補強コードを埋設したゴム等の可撓性材料を略円
筒状に成形すると共に、その両端部に空気バネ装置への
取付部を形成して構成されている。The membrane body of air spring devices used in vehicle suspension systems, etc.
Generally, a flexible material such as rubber with a reinforcing cord embedded therein is molded into a substantially cylindrical shape, and attachment portions to the air spring device are formed at both ends of the cylindrical shape.
ところが、従来のこの種の空気バネ装置用膜体Ｇは、第
９図及び第１０図に示すように、前記補強コードＧａが
内側と外側に計二層配置されており、しかも各補強コー
ドＧａは、膜体Ｇの軸線に対して相互に交差せしめて配
置されている。However, in the conventional film body G for an air spring device of this type, as shown in FIGS. 9 and 10, the reinforcing cords Ga are arranged in two layers on the inside and outside, and each reinforcing cord Ga are arranged so as to intersect with the axis of the membrane G.
従って、膜体剛性を低減せしめることが困難である関係
上、フリクションを低減することは到底望む−ことがで
きなかった。Therefore, since it is difficult to reduce the membrane rigidity, it has not been possible to reduce the friction at all.
この結果、フリクション性能を改善することができない
ばかりでなく、車両の乗心地性能にも悪影響をおよぼす
等問題があるのが現状である。As a result, the current situation is that not only it is not possible to improve the friction performance, but also the ride comfort performance of the vehicle is adversely affected.
本発明は上述した問題を解消すべく検討した結果、導か
れたものである。The present invention was developed as a result of studies aimed at solving the above-mentioned problems.
従って本発明の目的は、空気バネ装置への安定した取付
性能を得ることができると共に、良好なフリクション性
能を得ることができる空気バネ装置用膜体を提供するこ
とにある。Therefore, an object of the present invention is to provide a membrane body for an air spring device that can achieve stable attachment performance to an air spring device and can also provide good friction performance.
すなわち本発明は、補強コードを埋設したゴム等の可撓
性材料を略円筒状に成形すると共に、その両端部に空気
バネ装置への取付部を形成してなり、前記補強コードは
、軸線方向と平行に一層配置したことを特徴とする空気
ハネ装置用膜体を、その要旨とするものである。That is, in the present invention, a flexible material such as rubber in which a reinforcing cord is embedded is molded into a substantially cylindrical shape, and mounting portions to an air spring device are formed at both ends of the flexible material, and the reinforcing cord is formed in an axial direction. The gist of the invention is a membrane body for an air splash device, characterized in that one layer is arranged parallel to the membrane body.
以下本発明を実施例により図面を参照して具体的に説明
する。Hereinafter, the present invention will be specifically described by way of examples with reference to the drawings.
第１図〜第４図はそれぞれ本発明の各実施例からなる空
気バネ装置用膜体を示し、第１図は第１実施例の一部を
切欠した正面視説明図、第２図は第２実施例の一部を切
欠した正面視説明図、第３図は第３実施例の一部を切欠
した正面視説明図、第４図は第４実施例の一部を切欠し
た正面視説明図である。また第５図及び第６図はそれぞ
れ本膜体の空気ハネ装置への取付状態例を示す一部を切
欠した正面視説明図、第７図は第６図に示す空気バネ装
置に取り付けられた膜体拘束外筒体を示す一部を切欠し
た正面視説明図である。1 to 4 each show a membrane body for an air spring device according to each embodiment of the present invention, FIG. 1 is a partially cutaway front view explanatory view of the first embodiment, and FIG. FIG. 3 is a partially cutaway front view illustration of the third embodiment; FIG. 4 is a partially cutaway front view illustration of the fourth embodiment. It is a diagram. In addition, Figs. 5 and 6 are partially cutaway front view explanatory views showing examples of how the membrane body is attached to the air spring device, respectively, and Fig. 7 is an explanatory front view showing an example of how the membrane body is attached to the air spring device shown in Fig. 6. FIG. 2 is a partially cutaway front view explanatory view showing a membrane restraining outer cylinder.
図においてＥは本発明の実施例からなる空気バネ装置用
膜体で、補強コード１０を埋設したゴム等の可撓性材料
を略円筒状に成形すると共に、その両端部に空気バネ装
置Ａへの取付部２０１及び２０２を形成することにより
構成されている。In the figure, E is a membrane body for an air spring device according to an embodiment of the present invention, in which a flexible material such as rubber in which a reinforcing cord 10 is embedded is formed into a substantially cylindrical shape, and the air spring device A is attached to both ends of the flexible material such as rubber. The mounting portions 201 and 202 are formed.
そして本発明においては、特に、前記補“強コード１０
は、本膜体Ｅの軸線方向と平行に、しかも一層だけ配置
されている。In the present invention, particularly, the reinforcement cord 10
are arranged parallel to the axial direction of the main membrane body E, and in only one layer.
さらにこの構造を説明すると、前記補強コード１０は、
本膜体Ｅを装着する空気バネ装置Ａの主たる用途が自動
車等の懸架装置に取り付けられるもので、取付スペース
及び使用ストローク量から、本膜体Ｅの折り返し部Ｅ、
に小さな曲率半径の繰返し曲げ応力が作用するため、耐
屈曲疲労性の良いナイロンコードや、ポリエステルコー
ド、芳香族ポリアミド繊維コード等、耐屈曲疲労性の良
い高強度低伸長の合成繊維コードを用いることが好まし
い。To further explain this structure, the reinforcement cord 10 is
The main use of the air spring device A to which this membrane body E is attached is to be attached to a suspension system of an automobile, etc., and due to the installation space and the amount of stroke used, the folded part E of the membrane body E,
Since repeated bending stress with a small radius of curvature acts on the cable, use high-strength, low-elongation synthetic fiber cords with good bending fatigue resistance, such as nylon cords, polyester cords, and aromatic polyamide fiber cords with good bending fatigue resistance. is preferred.
また、上述した補強コードｌＯと共に本膜体Ｅを構成す
るゴム等の可撓性材料としては、クロロプレンゴム等耐
屈曲疲労性に優れた合成ゴムを用いることが好ましい。Further, as a flexible material such as rubber constituting the main membrane body E together with the above-mentioned reinforcing cord IO, it is preferable to use synthetic rubber having excellent bending fatigue resistance such as chloroprene rubber.
さらに第２図〜第４図に示す第２実施例〜第４実施例に
おいては、図示したように、前記空気バネ装置Ａへの各
取付部２０１及び２０２に、それぞれ補強手段３０が施
しである。Further, in the second to fourth embodiments shown in FIGS. 2 to 4, reinforcing means 30 are provided at each attachment portion 201 and 202 to the air spring device A, as shown. .
そして、本膜体Ｅの各取付部２０□及び２０２に施され
た補強手段３０は、
（ａ） 第２実施例においては、第２図に示すように
、各取付部２０１及び２０２に、前記補強コード１０と
直交するよう、つまり本膜体Ｅの周方向に補強コード３
０□を配置して二層構造として各取付部２０１及び２０
２の剛性を向上せしめ、（ｂｌ また、第３実施例に
おいては、第３図に示すように、各取付部２０１及び２
０２に、本膜体Ｅと同質の可撓性材料、又はこれと相容
性の良い材料、あるいは、異質材料で高モジュラスの可
撓性材料からなる補強層３０２を一体的に加硫接着する
ことにより、各取付部２０１及び２０２の剛性を向上せ
しめ、
（Ｃ１さらに、第４実施例においては、第４図に示すよ
うに、各取付部２０１及び２０２の外周面に、周方向に
連続した凸条３０３を配置することにより、各取付部２
０□及び２０２の剛性を向上せしめると共に、本膜体Ｅ
を空気バネ装置Ａに取り付けた際の気密性をもさらに向
上することができる。The reinforcing means 30 applied to each of the attachment parts 20□ and 202 of the main membrane body E is (a) In the second embodiment, as shown in FIG. The reinforcement cord 3 is installed perpendicularly to the reinforcement cord 10, that is, in the circumferential direction of the main membrane body E.
Each mounting part 201 and 20 has a two-layer structure by arranging 0□.
In addition, in the third embodiment, as shown in FIG.
02, a reinforcing layer 302 made of a flexible material that is the same as the main membrane body E, a material that is compatible with it, or a different material with a high modulus is integrally bonded by vulcanization. By this, the rigidity of each mounting part 201 and 202 is improved, and (C1) Furthermore, in the fourth embodiment, as shown in FIG. By arranging the protrusions 303, each mounting portion 2
In addition to improving the rigidity of 0□ and 202, this membrane body E
The airtightness when attached to the air spring device A can also be further improved.
上述したように、本膜体Ｅは、補強コード１０を一層だ
け配置したので、従来のものと比較して膜体の肉厚及び
膜体剛性を大幅に低減することができ、しかも、補強コ
ード１０を本膜体Ｅの軸線方向と平行に配置したので、
膜体転動方向の耐圧強度は充分保持でき、膜体歪の低減
も可能となり、さらに、第２実施例〜第４実施例に示し
たように、前記空気バネ装置Ａへの各取付部２０１及び
２０２に、それぞれ補強手段３０を施すと、各取付部２
０１及び２０２の剛性をも向上せしめることができる。As mentioned above, this membrane body E has only one layer of reinforcing cords 10, so the thickness and rigidity of the membrane body can be significantly reduced compared to the conventional membrane body. 10 is arranged parallel to the axial direction of the main membrane body E,
The pressure resistance strength in the rolling direction of the membrane body can be maintained sufficiently, and the strain of the membrane body can be reduced.Furthermore, as shown in the second to fourth embodiments, each attachment part 201 to the air spring device A can be When reinforcing means 30 are applied to and 202, each mounting portion 2
The rigidity of 01 and 202 can also be improved.
このように、各取付部２０１及び２０２の剛性を向上せ
しめる一方、膜体転動の膜体剛性を大幅に低減すること
ができるので、空気バネ装置Ａへの安定した取付性能を
得ることができると共に、フリクションを大幅に低減す
ることができる。In this way, while improving the rigidity of each attachment part 201 and 202, it is possible to significantly reduce the membrane rigidity of the membrane rolling, so stable attachment performance to the air spring device A can be obtained. At the same time, friction can be significantly reduced.
第５図は、気室側外筒部１ａの下部に膜体拘束外筒部１
ｂを連続して一体的に形成した外筒１を備えた空気バネ
装置Ａに、本膜体Ｅを取り付けた例である。FIG. 5 shows a membrane restraining outer cylinder part 1 attached to the lower part of the air chamber side outer cylinder part 1a.
This is an example in which the membrane body E is attached to an air spring device A that includes an outer cylinder 1 that is continuously and integrally formed.
しかしながら第６図に示すように、気室側外筒部１ａの
下部に膜体拘束外筒部１ｂが連続して一体的に形成され
ていない場合は、図示したように、別途成形された膜体
拘束外筒体Ｍを、気室側外筒部１ａの下部に取り付ける
必要がある。However, as shown in FIG. 6, if the membrane restraining outer cylinder part 1b is not continuously and integrally formed at the lower part of the air chamber side outer cylinder part 1a, as shown in the figure, a separately formed membrane is required. It is necessary to attach the body restraining outer cylinder M to the lower part of the air chamber side outer cylinder part 1a.
これは、本膜体Ｅにおいて前記補強コード１０は、本膜
体Ｅの軸線方向と平行に、しかも一層だけ配置して構成
されているので、径方向に対する強度が不足する関係上
、使用に際し、本膜体Ｅが拡径するのを前記膜体拘束外
筒体Ｍによって拘束する必要があるからである。This is because the reinforcement cords 10 in the main membrane body E are arranged parallel to the axial direction of the main membrane body E and in only one layer, so the strength in the radial direction is insufficient. This is because it is necessary to restrain the membrane body E from expanding in diameter by the membrane body restraining outer cylinder M.
上述した膜体拘束外筒体Ｍは、第７図に示すように、補
強コードＭａを埋設したゴム等の可撓性材料を円筒状に
成形すると共に、前記補強コードＭａを、本膜体拘束外
筒体Ｍの周方向に配置して構成されている。As shown in FIG. 7, the above-mentioned membrane restraining outer cylinder M is formed by molding a flexible material such as rubber into a cylindrical shape in which a reinforcing cord Ma is embedded, and the reinforcing cord Ma is connected to the main membrane restraining body. They are arranged in the circumferential direction of the outer cylindrical body M.
上述したように、本膜体拘束外筒体Ｍの補強コードＭａ
は周方向に配置されているので１、径方向に対して大き
な強度を有し、従って、前述した本膜体Ｅが拡径するの
を本膜体拘束外筒体Ｍによって確実に拘束することがで
きる。As mentioned above, the reinforcing cord Ma of the membrane restraining outer cylinder M
Since it is arranged in the circumferential direction, it has a large strength in the radial direction, and therefore, the expansion of the diameter of the aforementioned membrane body E can be reliably restrained by the membrane body restraining outer cylindrical body M. I can do it.
また、本膜体拘束外筒体Ｍは本膜体Ｅと同様に可撓性を
有しているので、隣在する他のものを損傷する恐れがな
く、しかも外筒長さを大きくすることができる。In addition, since the membrane restraining outer cylinder M has flexibility like the membrane E, there is no risk of damaging other adjacent objects, and the length of the outer cylinder can be increased. I can do it.
なお、図において２は空気バネ装置Ａのオイルダンパー
、３はロッド、４ば気室をそれぞれ示すものである。In the figure, 2 indicates an oil damper of the air spring device A, 3 indicates a rod, and 4 indicates an air chamber.
以下本発明の効果を確認する実験とその結果について説
明する。Experiments to confirm the effects of the present invention and their results will be described below.
本実験は室温下で第５図に示す膜体拘束タイプの空気バ
ネ装置を用い、第１図に示す本発明の膜体と第９図に示
す従来の膜体とのフリクション（ヒステリシスロスが代
用特性となる）を比較した。This experiment was carried out at room temperature using a membrane restraint type air spring device shown in Figure 5. characteristics) were compared.
本実験に用いた膜体の仕様及び実験条件は次の通りであ
る。The specifications of the membrane used in this experiment and the experimental conditions are as follows.
（本発明の膜体）
第１図に示す構造で、軸線長さ１８０．０ ’＋ｎ取付
部２０１の内径５０．８鶴
取付部２０２の内径６６．０龍
（従来の膜体）
第９図に示す構造で、軸線長さ１８０．０ ＋ｕ取付部
２０１の内径５０，８期
取付部２０２の内径６６．０鶴
〔実験条件〕
温度・・・・・・・・・室温（２５℃）変位速度−１０
０１１１／ ｍｉｎ
封入内圧・・・２ 、 ４ 、 、６ 、 ８ ｋｇ
／ ｃｔａ実験の結果を第８図に示す。第８図は支持荷
重を基準にしてヒステリシスロスを比較したもので、封
入内圧を可変した。(Membrane body of the present invention) With the structure shown in Fig. 1, the axis length is 180.0'+n, the inner diameter of the mounting part 201 is 50.8, and the inner diameter of the mounting part 202 is 66.0 (conventional membrane body). With the structure shown in, the axis length is 180.0 + the inner diameter of the u attachment part 201 is 50, the inner diameter of the 8th stage attachment part 202 is 66.0 [Experimental conditions] Temperature: Room temperature (25°C) Displacement Speed -10
0111/min Enclosed internal pressure...2, 4, , 6, 8 kg
The results of the /cta experiment are shown in FIG. FIG. 8 shows a comparison of hysteresis loss based on the supporting load, and the sealed internal pressure was varied.
なお、第８図において点線は本発明の膜体を実線は従来
の膜体を示す。In FIG. 8, the dotted line shows the film body of the present invention, and the solid line shows the conventional film body.
この実験結果から、本発明の膜体は、ヒステリシスロス
を従来の膜体と比較して３０〜４０％低減することがで
きる一方、支持荷重能力が大きく、従来の膜体より少な
い封入内圧で支持能力を保持できることも判明した。From this experimental result, the membrane of the present invention can reduce hysteresis loss by 30 to 40% compared to conventional membranes, while having a large supporting load capacity and supporting with less internal pressure than conventional membranes. It was also discovered that he was able to retain his abilities.
このように、本発明の膜体は従来の膜体と比較してフリ
クション性能を３０〜４０％改善することができる一方
、支持荷重能力も向上することができ、車両の乗心地性
能改善にも寄与することができる。As described above, the membrane body of the present invention can improve friction performance by 30 to 40% compared to conventional membrane bodies, and can also improve the supporting load capacity, which can also improve vehicle ride comfort. can contribute.
本発明は上述したように、補強コードを一層だけ配置し
たので、従来のものと比較して膜体の肉厚及び膜体剛性
を大幅に低減することができ、しかも、補強コードを本
膜体の軸線方向と平行に配置したので、膜体転動方向の
耐圧強度は充分保持でき、膜体歪を低減することができ
る。As described above, in the present invention, since the reinforcing cords are arranged in only one layer, the thickness and rigidity of the membrane body can be significantly reduced compared to conventional ones. Since it is arranged parallel to the axial direction of the membrane, the pressure resistance in the rolling direction of the membrane can be sufficiently maintained, and the strain of the membrane can be reduced.
このように、膜体転動の膜体剛性を大幅に低減すること
ができるので、空気ハネ装置への安定した取付性能を得
ることができると共に、フリクションを大幅に低減する
ことができる一方、車両の乗心地性能改善にも寄与する
ことができる。In this way, the rigidity of the membrane body due to membrane body rolling can be significantly reduced, making it possible to obtain stable mounting performance to the air splash device and greatly reducing friction. It can also contribute to improving ride comfort.
第１図〜第４図はそれぞれ本発明の各実施例からなる空
気バネ装置用膜体を示し、第１図は第１実施例の一部を
切欠した正面視説明図、第２図は第２実施例の一部を切
欠した正面視説明図、第３図は第３実施例の一部を切欠
した正面視説明図、第４図は第４実施例の一部を切欠し
た正面視説明図である。また第５図及び第６図はそれぞ
れ本膜体の空気バネ装置への取付状態例を示す一部を切
欠した正面視説明図、第７図は第６図に示す空気バネ装
置に取り付けられた膜体拘束外筒体を示す一部を切欠し
た正面視説明図、第８図は実験例の結果を示す図である
。
さらに第９図及び第１０図は従来の空気バネ装置用膜体
を示し、第９図は一部を切欠した正面視説明図、第１０
図は第９図Ｘ−Ｘ矢視断面説明図、第１１図は同上従来
の空気バネ装置用膜体の空気バネ装置への取付状態例を
示す一部を切欠した正面視説明図である。
１０・・・補強コード、２０ （２０１２０２）・・・
空気バネ装置への取付部、Ａ・・・空気バネ装置。1 to 4 each show a membrane body for an air spring device according to each embodiment of the present invention, FIG. 1 is a partially cutaway front view explanatory view of the first embodiment, and FIG. FIG. 3 is a partially cutaway front view illustration of the third embodiment; FIG. 4 is a partially cutaway front view illustration of the fourth embodiment. It is a diagram. In addition, Figs. 5 and 6 are partially cutaway front view explanatory views showing examples of how the membrane body is attached to the air spring device, respectively, and Fig. 7 is an explanatory front view showing an example of how the membrane body is attached to the air spring device shown in Fig. 6. FIG. 8 is a front view explanatory view with a part cut away showing the membrane restraining outer cylinder, and FIG. 8 is a diagram showing the results of an experimental example. Furthermore, FIGS. 9 and 10 show a conventional membrane body for an air spring device, FIG.
The drawings are an explanatory cross-sectional view taken along the line X--X in FIG. 9, and FIG. 11 is an explanatory partially cutaway front view showing an example of how the conventional membrane body for an air spring device is attached to the air spring device. 10... Reinforcement cord, 20 (201202)...
Attachment part to air spring device, A... Air spring device.
Claims (1)
成形すると共に、その両端部に空気バネ装置への取付部
を形成してなり、前記補強コードは、軸線方向と平行に
一層配置したことを特徴とする空気バネ装置用膜体。A flexible material such as rubber with a reinforcing cord embedded therein is molded into a substantially cylindrical shape, and mounting portions to the air spring device are formed at both ends of the flexible material, and the reinforcing cord is arranged parallel to the axial direction. A membrane body for an air spring device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16042284A JPS6138238A (en) | 1984-07-31 | 1984-07-31 | Membrane for air spring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16042284A JPS6138238A (en) | 1984-07-31 | 1984-07-31 | Membrane for air spring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6138238A true JPS6138238A (en) | 1986-02-24 |
Family
ID=15714580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16042284A Pending JPS6138238A (en) | 1984-07-31 | 1984-07-31 | Membrane for air spring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6138238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6392736U (en) * | 1986-12-05 | 1988-06-15 | ||
| JP2007083410A (en) * | 2005-09-20 | 2007-04-05 | Toyo Tire & Rubber Co Ltd | Method for forming reinforcing cord layer and rubber cylindrical body with metal fittings |
-
1984
- 1984-07-31 JP JP16042284A patent/JPS6138238A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6392736U (en) * | 1986-12-05 | 1988-06-15 | ||
| JP2007083410A (en) * | 2005-09-20 | 2007-04-05 | Toyo Tire & Rubber Co Ltd | Method for forming reinforcing cord layer and rubber cylindrical body with metal fittings |
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