JP2545547B2 - Air spring device - Google Patents
Air spring deviceInfo
- Publication number
- JP2545547B2 JP2545547B2 JP19172787A JP19172787A JP2545547B2 JP 2545547 B2 JP2545547 B2 JP 2545547B2 JP 19172787 A JP19172787 A JP 19172787A JP 19172787 A JP19172787 A JP 19172787A JP 2545547 B2 JP2545547 B2 JP 2545547B2
- Authority
- JP
- Japan
- Prior art keywords
- air spring
- laminated rubber
- spring device
- inner cylinder
- diaphragm
- 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 - Lifetime
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
- F16F9/049—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 multi-chamber units
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、除振および免震装置として使用される空
気ばね装置に関する。TECHNICAL FIELD The present invention relates to an air spring device used as a vibration isolation and seismic isolation device.
従来、精密機械等を弾性支持して振動を与えないよう
にする除振装置として、たとえば第２図に示す空気ばね
装置が使用されている。2. Description of the Related Art Conventionally, for example, an air spring device shown in FIG. 2 has been used as a vibration isolator that elastically supports a precision machine or the like to prevent vibration.
この空気ばね装置は、ローリングシール式のダイヤフ
ラム２による空気室３が形成された空気ばね１と、この
空気ばね１に直列に結合された積層ゴム５とから構成さ
れている。This air spring device is composed of an air spring 1 in which an air chamber 3 is formed by a rolling seal type diaphragm 2 and a laminated rubber 5 connected in series to the air spring 1.
従来のこの種の空気ばね装置は、積層ゴム５が水平変
位したときに空気ばね１の内筒４に接触して水平変位量
が制限されるのを回避するために、積層ゴム５の外径を
空気ばね１の内筒４の内径よりも小さく設定して、積層
ゴム５と空気ばね１の内筒４との間にすき間６を設けて
いる。The conventional air spring device of this type has an outer diameter of the laminated rubber 5 in order to prevent the laminated rubber 5 from contacting the inner cylinder 4 of the air spring 1 and limiting the horizontal displacement amount when the rubber 5 is horizontally displaced. Is set smaller than the inner diameter of the inner cylinder 4 of the air spring 1, and a gap 6 is provided between the laminated rubber 5 and the inner cylinder 4 of the air spring 1.
このように、従来の積層ゴム５は高さに対する外径寸
法が比較的小さな細長い形状のものが使用されているた
め、水平方向に大きな変位が生じた場合には座屈するお
それがある。このため従来の空気ばね装置を地震発生時
の免震装置として兼用することは困難であって、用途が
限定されるという問題がある。As described above, since the conventional laminated rubber 5 has an elongated shape having a relatively small outer diameter with respect to the height, it may be buckled when a large displacement occurs in the horizontal direction. Therefore, it is difficult to use the conventional air spring device also as a seismic isolation device in the event of an earthquake, and there is a problem that the application is limited.
この発明は、上記の問題を解決して水平方向の大変位
に対して耐座屈性を有する積層ゴムが直列に結合された
空気ばね装置を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide an air spring device in which laminated rubbers having buckling resistance against large horizontal displacement are connected in series.
この発明の空気ばね装置は、空気ばねのダイヤフラム
の内周側に反転部を、積層ゴムの外径面に直接接触させ
て、空気ばねの内筒としての機能を積層ゴムに付与して
いる。In the air spring device of the present invention, the inversion portion is brought into direct contact with the outer diameter surface of the laminated rubber on the inner peripheral side of the diaphragm of the air spring to give the laminated rubber a function as the inner cylinder of the air spring.
この発明の空気ばね装置は、有効径が同一の空気ばね
に対して外径が従来のものよりも大きい積層ゴムを直列
に結合することができる。In the air spring device of the present invention, laminated rubbers having an outer diameter larger than that of a conventional one can be connected in series to air springs having the same effective diameter.
以下、この発明の実施例について図面を参照して説明
する。Embodiments of the present invention will be described below with reference to the drawings.
第１図は、この発明の実施例を右半部を断面にして示
す側面図である。FIG. 1 is a side view showing an embodiment of the present invention with the right half section shown in section.
空気ばね10は、前記第２図の空気ばねと同一の有効径
を有するローリングシール式のものであって、上面板11
と下面板13との間に、環状の可撓性ゴム膜からなるダイ
ヤフラム14の外周側取付部と内周側取付部とが気密に固
着されて空気室15を形成している。この空気ばね10の上
面板11には第２図と同様に外筒12が取り付けてあるが、
下面板13に取り付けられる内筒は省除した構造になって
いる。The air spring 10 is of a rolling seal type having the same effective diameter as the air spring of FIG.
The outer peripheral side mounting portion and the inner peripheral side mounting portion of the diaphragm 14 formed of an annular flexible rubber film are airtightly fixed between the lower surface plate 13 and the lower surface plate 13 to form an air chamber 15. An outer cylinder 12 is attached to the top plate 11 of the air spring 10 as in FIG.
The inner cylinder attached to the lower plate 13 has a structure in which it is omitted.
上記の空気ばね10の下面板13には、積層ゴム20が空気
ばね10と同一鉛直中心軸線上に直列に結合されている。
この積層ゴム20は、第２図の積層ゴムと同様に環状のゴ
ム層21と金属板22とを交互に積層接着して中空円筒状体
に成形し、その上端部に環状の受圧板23を、下端部に円
板状の受圧板24をそれぞれ一体に接着したものであり、
中空部25が図示しない通気穴を介して空気ばね10の空気
室15と連通して補助空気室を形成している。The laminated rubber 20 is connected to the lower plate 13 of the air spring 10 in series on the same vertical central axis as the air spring 10.
This laminated rubber 20 is formed into a hollow cylindrical body by alternately laminating and bonding an annular rubber layer 21 and a metal plate 22 similarly to the laminated rubber of FIG. 2, and an annular pressure receiving plate 23 is formed on the upper end thereof. , A disc-shaped pressure receiving plate 24 is integrally bonded to the lower end,
The hollow portion 25 communicates with the air chamber 15 of the air spring 10 via a vent hole (not shown) to form an auxiliary air chamber.
上記の積層ゴム20の高さは第２図のものと同一寸法で
あるが、外径は空気ばね10の下面板13の直径と同一寸法
となるように大径に成形されており、空気ばね10のダイ
ヤフラム14の内周側の反転部14aを積層ゴム20の外径面
に直接接触させて取り付けている。The height of the laminated rubber 20 is the same as that of FIG. 2, but the outer diameter is formed to be the same as the diameter of the lower surface plate 13 of the air spring 10, and the air spring is formed. The inversion portion 14a on the inner peripheral side of the diaphragm 14 of 10 is attached so as to be in direct contact with the outer diameter surface of the laminated rubber 20.
上記の構成からなる空気ばね装置は、空気ばね10が鉛
直方向または水平方向に変位したときは、ダイヤフラム
14の内周側反転部14aに接触している積層ゴム20が空気
ばね10の内筒としての機能を営むことになり、積層ゴム
20の水平変位時においては空気ばね10の有効径を変化さ
せることができる。The air spring device having the above-described configuration is configured so that when the air spring 10 is displaced vertically or horizontally, the diaphragm
The laminated rubber 20 that is in contact with the inner circumferential side reversing portion 14a of 14 functions as the inner cylinder of the air spring 10.
When 20 is horizontally displaced, the effective diameter of the air spring 10 can be changed.
また、積層ゴム20に水平方向の大きな変位が生じた場
合においても、積層ゴム20は高さに比べて外径寸法が大
きく、安定性のよい形状になっているため、座屈するこ
となく、水平方向の大変位に耐え得る性能が発揮させる
ことになる。Further, even when a large horizontal displacement occurs in the laminated rubber 20, the laminated rubber 20 has a large outer diameter dimension compared to the height and has a stable shape, so that the laminated rubber 20 does not buckle horizontally. The performance that can withstand large displacement in the direction will be exhibited.
前記実施例の空気ばねは外筒を有する型式のものにつ
いて説明したが、この発明が適用される空気ばねは少な
くとも内筒を有する型式のものであればよく、外筒を省
略した空気ばねについても前記と同様の構成にすること
ができる。Although the air spring of the above-described embodiment has been described as the type having the outer cylinder, the air spring to which the present invention is applied may be the type having at least the inner cylinder, and the air spring in which the outer cylinder is omitted is also used. The same configuration as described above can be used.
また、前記実施例では中空状体の積層ゴムを空気ばね
に直列に結合した場合について説明したが、積層ゴムは
中空状体のものに限らず中実状体のものであってもよ
く、その外形形状についても前記実施例のように円筒形
に限らず、円すい形に成形したものを使用することもで
きる。Further, in the above-mentioned embodiment, the case where the laminated rubber of the hollow body is coupled to the air spring in series has been described, but the laminated rubber is not limited to the hollow body and may be the solid body, and its outer shape The shape is not limited to the cylindrical shape as in the above-described embodiment, and a conical shape may be used.
以上説明したように、この発明の空気ばね装置は、空
気ばねに直列に結合された積層ゴムの外径面に、空気ば
ねのダイヤフラムの内周側の反転部を直接接触させて、
空気ばねの内筒としての機能を積層ゴムに付与する構成
としているから、少なくとも内筒を有するローリングシ
ール式のダイヤフラム型空気ばねの性能を損なうことな
く、積層ゴムの外径を従来のものよりも大きく、安定性
のよい形状に成形することが可能となる。このため、水
平方向に大きな変位が生じた場合でも積層ゴムに座屈が
起こるおそれが解消され、除振装置としてだけでなく、
免震装置としての使用も可能な空気ばね装置が得られ
る。As described above, in the air spring device of the present invention, the outer peripheral surface of the laminated rubber coupled in series to the air spring is brought into direct contact with the inversion portion on the inner peripheral side of the diaphragm of the air spring,
Since it is configured to give the laminated rubber the function of the inner cylinder of the air spring, the outer diameter of the laminated rubber is smaller than that of the conventional one without impairing the performance of the rolling seal type diaphragm type air spring having at least the inner cylinder. It becomes possible to form a large and stable shape. Therefore, even if a large horizontal displacement occurs, the possibility that the laminated rubber will buckle is eliminated, and not only as a vibration isolation device,
It is possible to obtain an air spring device that can be used as a seismic isolation device.
また、この発明によれば、積層ゴムが空気ばねの内筒
としての機能を有しており、従来の空気ばねの構成部品
であった内筒を省除することができるから、部品減によ
る製造コストの低減効果が得られるだけでなく、中空状
体の積層ゴムを使用する場合は、外径を大きくした割合
に応じて薄肉構造にすることができるから、材料費の軽
減により製造コストをさらに低減することができる。Further, according to the present invention, the laminated rubber has a function as an inner cylinder of the air spring, and the inner cylinder which is a component of the conventional air spring can be omitted. Not only is the cost reduction effect obtained, but when using a laminated rubber with a hollow body, it is possible to make a thin-walled structure according to the proportion of the increased outer diameter. It can be reduced.
第１図はこの発明の実施例を示す右半部断面側面図、第
２図は従来の空気ばね装置を示す右半部断面側面図であ
る。 図中、10は空気ばね、13は下面板、14はダイヤフラム、
14aはダイヤフラムの内周側反転部、20は積層ゴムであ
る。1 is a right half sectional side view showing an embodiment of the present invention, and FIG. 2 is a right half sectional side view showing a conventional air spring device. In the figure, 10 is an air spring, 13 is a bottom plate, 14 is a diaphragm,
Reference numeral 14a is an inner peripheral side inversion portion of the diaphragm, and 20 is a laminated rubber.
Claims (1)
ばねの下面板に積層ゴムを直列に結合してなる空気ばね
装置において、前記空気ばねのタイヤフラムの内周側の
反転部を積層ゴムの外径面に直接接触させて取り付け、
空気ばねの円筒としての機能を積層ゴムに付与したこと
を特徴とする空気ばね装置。1. An air spring device comprising a rolling seal type diaphragm type air spring in which a laminated rubber is connected in series to a lower plate of the air spring. Attach by directly contacting the surface,
An air spring device characterized in that a laminated rubber is provided with a function as a cylinder of an air spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19172787A JP2545547B2 (en) | 1987-07-31 | 1987-07-31 | Air spring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19172787A JP2545547B2 (en) | 1987-07-31 | 1987-07-31 | Air spring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6435136A JPS6435136A (en) | 1989-02-06 |
| JP2545547B2 true JP2545547B2 (en) | 1996-10-23 |
Family
ID=16279485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19172787A Expired - Lifetime JP2545547B2 (en) | 1987-07-31 | 1987-07-31 | Air spring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545547B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4009495A1 (en) * | 1990-03-24 | 1991-09-26 | Continental Ag | ROLL BELLOW AIR SPRING WITH A REINFORCED ROLL BELLOW |
-
1987
- 1987-07-31 JP JP19172787A patent/JP2545547B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6435136A (en) | 1989-02-06 |
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