JPH04145240A - Anisotropic air spring - Google Patents
Anisotropic air springInfo
- Publication number
- JPH04145240A JPH04145240A JP26378790A JP26378790A JPH04145240A JP H04145240 A JPH04145240 A JP H04145240A JP 26378790 A JP26378790 A JP 26378790A JP 26378790 A JP26378790 A JP 26378790A JP H04145240 A JPH04145240 A JP H04145240A
- Authority
- JP
- Japan
- Prior art keywords
- surface plate
- deformation
- air spring
- plate
- top plate
- 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
- 230000000452 restraining effect Effects 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract 1
- 239000011324 bead Substances 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000035936 sexual power Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、たとえば、鉄道車両用のボルスタレス台車
に適用して好適な異方性空気ばねに関し、上下の面板の
上下方向の相対変位のみならず、水平方向の相対変位に
対してもまたばねとして機能することができ、しかも、
水平方向の相対変位に対するばね特性を、水平面内での
変位方向により、所要に応じて変化させるものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an anisotropic air spring suitable for application to, for example, a bolster-less bogie for a railway vehicle. First, it can also function as a spring against relative displacement in the horizontal direction, and
The spring characteristics for relative displacement in the horizontal direction are changed as required depending on the direction of displacement in the horizontal plane.
（従来の技術）
鉄道車両用のボルスタレス台車に適用されて、たとえば
、車両の前後方向には軟かく、左右方向には硬いばね特
性を有する異方性空気ばねは、筒状可撓膜体の、上下の
面板への連結部より外周側で筒状可撓膜体の変形を拘束
する変形拘束部を上面板もしくは下面板に設けることに
よって構成することが一般的であり、そこで従来は、第
４図（ａ）に上面板を路線平面図で示すように、上面板
Ｕの車両の左右方向と対応する一定の角度領域Ａでは、
第４図（ｂ）に示すように、上面板Ｕの下面側に、変形
拘束部ｒを下方へ突出させて設け、その変形拘束部ｒと
筒状可撓膜体との接触面を上面板の内側下方に向く傾斜
面ｔとする一方、車両の前後方向と対応する一定の角度
領域Ｂでは、第４図（Ｃ）に示すように、変形拘束部Ｕ
を全く形成せず、そして、領域Ａと領域Ｂとの中間領域
Ｃでは、領域Ｂから領域Ａに向けて突出高さが次第に増
加する遷移突部Ｓを形成し、かかる上面板によって車両
の前後方向に軟かく、左右方向には硬いばね特性をもた
らすことが多かった。(Prior art) Anisotropic air springs that are applied to bolsterless bogies for railway vehicles and have spring characteristics that are soft in the longitudinal direction of the vehicle and hard in the lateral directions are , it is common to construct a structure by providing a deformation restraining part on the upper face plate or the lower face plate to restrain the deformation of the cylindrical flexible membrane body on the outer peripheral side of the connection part to the upper and lower face plates. As shown in the route plan view of the top plate in Figure 4(a), in a certain angular area A of the top plate U that corresponds to the left and right direction of the vehicle,
As shown in FIG. 4(b), a deformation restraint part r is provided on the lower surface side of the top plate U to protrude downward, and the contact surface between the deformation restraint part r and the cylindrical flexible membrane body is connected to the top plate U. On the other hand, in a certain angular region B corresponding to the longitudinal direction of the vehicle, the deformable restraint portion U
In addition, in the intermediate region C between region A and region B, a transition protrusion S is formed whose protrusion height gradually increases from region B to region A. This often resulted in spring characteristics that were soft in the direction and hard in the left and right directions.
（発明が解決しようとする課題）
ところか、かかる従来技術にあっては、とくには、上面
板Ｕに形成されて、これもまた、筒状可撓膜体の変形を
拘束すべく機能する遷移突部Ｓの存在の故に、車両の前
後方向と左右方向、いいかえれば、水平二次元方向の一
方側と他方側とのばね特性の差を所期したほどには大き
くすることができず、十分な異方性を確保し得ないとい
う問題があった他、筒状可撓膜体に異常摩耗が早期に発
生し易く、それの耐久性が低いという問題があった。(Problem to be Solved by the Invention) However, in this prior art, in particular, there is a transition formed on the top plate U, which also functions to restrain the deformation of the cylindrical flexible membrane body. Due to the existence of the protrusion S, it is not possible to make the difference in spring characteristics as large as expected between the longitudinal and lateral directions of the vehicle, or in other words, between one side and the other in the two-dimensional horizontal direction. In addition to the problem of not being able to secure a good anisotropy, there was also a problem that the cylindrical flexible membrane body was prone to abnormal wear at an early stage, and its durability was low.
この発明は、従来技術のかかる問題を有利に解決するも
のであり、所要に応じた異方性を確保できる他、筒状可
撓膜体の耐久性を有利に向上させることができる異方性
空気ばねを提供するものである。The present invention advantageously solves the problems of the prior art, and provides anisotropy that not only ensures a desired anisotropy but also advantageously improves the durability of a cylindrical flexible membrane body. It provides an air spring.
（課題を解決するための手段）
この発明は、上面板および下面板と、これらのそれぞれ
の面板に、上下の端部分を気密に連結した筒状可撓膜体
とを具え、この筒状可撓膜体の、上面板への連結部より
外周側で筒状可撓膜体の変形を拘束する変形拘束部をそ
の上面板に設けてなる異方性空気ばねであって、上面板
の平面視で、その上面板の、二次元方向の一方側の端部
分にのみ前記変形拘束部を設けたものである。(Means for Solving the Problems) The present invention includes an upper surface plate, a lower surface plate, and a cylindrical flexible membrane body whose upper and lower end portions are airtightly connected to each of these face plates. An anisotropic air spring in which a deformation restraining part is provided on the top plate of the flexible membrane body to restrain deformation of the cylindrical flexible membrane body on the outer peripheral side of the connection part to the top plate, and As seen, the deformation restraining portion is provided only at one end portion of the top plate in the two-dimensional direction.
（作 用）
この異方性空気ばねでは、上面板の平面視で、それの、
二次元方向の一方側の端部分にのみ変形拘束部を設け、
その変形拘束部を設けた側への筒状可撓膜体の変形だけ
を適正に拘束することにより、その変形拘束部を設けた
側でのばね特性と、変形拘束部設けない側でのばね特性
とを大きく異ならせることができる。(Function) In this anisotropic air spring, in plan view of the top plate, its
A deformation restraining part is provided only at one end in the two-dimensional direction,
By appropriately restraining only the deformation of the cylindrical flexible membrane body toward the side where the deformation restraint part is provided, the spring characteristics on the side where the deformation restraint part is provided and the spring characteristics on the side where the deformation restraint part is not provided are The characteristics can be significantly different.
すなわち、上面板の、二次元方向の一方側の端部分だけ
に変形拘束部を設けて、たとえば、その変形拘束部の、
半径方向内側縁を弧状に形成することにより、従来技術
の遷移部分Ｓを完全に取り除くことができ、これがため
、空気ばねに十分な異方性を付与するとともに、筒状可
撓膜体の耐久性を大きく向上させることが可能となる。That is, by providing a deformation restraining portion only at one end of the top plate in the two-dimensional direction, for example, the deformation restraining portion may be
By forming the radially inner edge in an arc shape, the transition section S of the prior art can be completely eliminated, which gives the air spring sufficient anisotropy and improves the durability of the cylindrical flexible membrane. It becomes possible to greatly improve performance.
（実施例） 以下にこの発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
第１図はこの発明の一実施例を示す図であり、第１図（
ａ）は拡大縦断面図、第１図（ｂ）は平面図である。FIG. 1 is a diagram showing an embodiment of the present invention, and FIG.
1(a) is an enlarged longitudinal sectional view, and FIG. 1(b) is a plan view.
図中１． ２はそれぞれ、ともに板状をなす上下の取付
部材を示し、ここで、上取付部材１は、第１図（ｂ）に
示すように、全体としてほぼ円弧状をなすも、直径方向
に対抗する二個所に弧状部分を有する平面輪郭形状の上
面板３と、この上面板３の下面中央部分にねじ止めした
上ビードシート４とからなる。1 in the figure. 2 designate upper and lower mounting members, both of which are plate-shaped, and here, as shown in FIG. It consists of an upper surface plate 3 having a planar contour shape having arcuate portions at two places, and an upper bead sheet 4 screwed to the center portion of the lower surface of this upper surface plate 3.
ここにおけるこの上取付部材１は、その中央部分に環状
の窪み部５を有しており、この環状窪み部５は、図示例
では、上ビードシート４と、この上ビートシート４の中
央部に取付けられて、車体に嵌まり込む給気用突部６と
、上面板３の、上ビードシート４へのねじ止め部より外
周側に位置するステップアップ周壁３ａとによって区画
されている。そしてまた、この窪み部５は、上取付部材
１の上ビードシート４と、上取付部材上に配設される車
体との間隔を維持すべく上ビードシート４に設けたスペ
ーサ７によって径方向の内外に二分割されている。The upper mounting member 1 here has an annular recess 5 in its central portion, and in the illustrated example, the annular recess 5 is connected to the upper bead sheet 4 and the central portion of the upper bead sheet 4. It is divided by an air supply protrusion 6 that is attached and fits into the vehicle body, and a step-up peripheral wall 3a located on the outer peripheral side of the screw-fastened portion of the top plate 3 to the upper bead seat 4. Furthermore, this recessed portion 5 is formed in the radial direction by a spacer 7 provided on the upper bead seat 4 in order to maintain the distance between the upper bead seat 4 of the upper mounting member 1 and the vehicle body disposed on the upper mounting member. It is divided into two parts: inside and outside.
なお図中８は、周方向の複数個所で上ビードシート４に
取付けた吊上げフックを示す。Note that 8 in the figure indicates lifting hooks attached to the upper bead sheet 4 at multiple locations in the circumferential direction.
また、下取付部材２は、下ビードシート９と、それにね
じ止めした下面板１０とからなり、ここでは、下ビード
シート９はその中央部に形成した絞り通路９ａを有する
他、そこに取付けた二個の可変絞り弁１１を有する。The lower mounting member 2 is composed of a lower bead sheet 9 and a lower plate 10 screwed to the lower bead sheet 9. Here, the lower bead sheet 9 has a constriction passage 9a formed in the center thereof, and a It has two variable throttle valves 11.
さらに、図中１２は、筒状可撓膜体の一例としてのゴム
ベローズを示し、このベローズ１２の上端部分は、そこ
に設けたビード部１２ａを、上面板３と上ビードシート
４との間に挟み込むことにより、またその下端部分は、
そこに設けたビード部１２ｂを、下ビードシート９と下
面板１０との間に、下面板上に配設した弾性中間部材１
３を介して挟み込むことにより、上下の取付部材１，２
、ひいては、上下の面板３，１０にそれぞれ気密に連結
されている。Further, reference numeral 12 in the figure indicates a rubber bellows as an example of a cylindrical flexible membrane body. By sandwiching it between the
The bead portion 12b provided there is placed between the lower bead sheet 9 and the lower plate 10, and the elastic intermediate member 1 disposed on the lower plate
By sandwiching the upper and lower mounting members 1 and 2 through 3,
, and in turn, are hermetically connected to the upper and lower face plates 3 and 10, respectively.
また図中１４は、筒状ゴム質弾性体を示し、上端を下取
付部材２に固定したこのゴム質弾性体Ｉ４は、その下端
に端板１５を有し、この端板１５はその中央部分に、筒
状ゴム質弾性体１４を、図示しない下部補助空気室に連
通させる連通通路１６を有する。Reference numeral 14 in the figure indicates a cylindrical rubber elastic body, and this rubber elastic body I4 whose upper end is fixed to the lower mounting member 2 has an end plate 15 at its lower end, and this end plate 15 is located at its central portion. It has a communication passage 16 that connects the cylindrical rubber elastic body 14 to a lower auxiliary air chamber (not shown).
ここにおいて、内部に上部補助空気室１７を区画する筒
状ゴム質弾性体１４は、ゴム、プラスチックその他から
なる弾性リング１４ａと、剛性リング１４ｂとの交互の
積層構体よりなり、ゴムベローズ１２がパンクしたとき
の下限ストッパーとして機能する他、上下の取付部材１
，２の、とくには水平方向の相対変位に際し、ベローズ
１２とともに、その変位を吸収すべく機能する。Here, the cylindrical rubber elastic body 14 that partitions the upper auxiliary air chamber 17 inside is composed of an alternately laminated structure of elastic rings 14a made of rubber, plastic, etc. and rigid rings 14b, and the rubber bellows 12 is punctured. In addition to functioning as a lower limit stopper when
, 2, especially in the horizontal direction, functions together with the bellows 12 to absorb the displacement.
なおここで、上面板３の下面に沿わせてそこに取付けた
、これもまた上面板３の一部としての摺接板３ｂは、摩
擦係数の小さい材料からなり、ベローズＩ２の外周面に
配設した網布１２ａとの協働下で、そのベローズ１２の
摩耗を抑制すべく機能する。Note that the sliding contact plate 3b, which is also a part of the upper plate 3 and is attached along the lower surface of the upper plate 3, is made of a material with a small coefficient of friction and is arranged on the outer peripheral surface of the bellows I2. It functions to suppress wear of the bellows 12 in cooperation with the provided mesh cloth 12a.
ところで、この空気ばねでは、第１図（ｂ）に示すよう
な、上面板３の平面視で、その上面板の、二次元方向の
一方側の端部分、図では弧状の輪郭を有するそれぞれの
端部分に、はぼ一定の幅を有する変形拘束部１８を設け
る。By the way, in this air spring, when the top plate 3 is viewed from above as shown in FIG. A deformation restraining portion 18 having a substantially constant width is provided at the end portion.
このことを第２図に示すところによって具体的に説明す
ると、上面板３の下面に、それぞれの笠状輪郭線３ｃに
沿って、はぼ一定幅Ｗでのびる変形拘束部１８を形成し
、これらのそれぞれの変形拘束部１８の、ゴムベローズ
１２との接触面を、上面板３の内側下方に向く一定傾斜
の傾斜面１９として、この傾斜面１９の下方への迫出量
を笠状輪郭線３Ｃの幾分内周側で最大とする一方、その
上面板３の他の部分については、下方への迫出量を実質
的に零として平坦な形状とし、これらのことによって、
ゴムベローズ１２の、笠状輪郭線３ｃの方向への変形に
対しては変形拘束力をとくに大きくし、その方向と直交
する方向への変形に対しては変形拘束力を極めて小なら
しめる。To explain this in detail with reference to FIG. 2, deformation restraining portions 18 are formed on the lower surface of the top plate 3, extending with a substantially constant width W along each cap-shaped contour line 3c. The contact surface of each of the deformation restraining parts 18 with the rubber bellows 12 is defined as an inclined surface 19 with a constant inclination facing downward inside the top plate 3, and the amount of downward protrusion of this inclined surface 19 is defined by the cap-shaped contour 3C is maximized on the somewhat inner peripheral side, while other parts of the upper surface plate 3 have a flat shape with the amount of downward protrusion being substantially zero.
The deformation restraining force is made especially large for deformation of the rubber bellows 12 in the direction of the cap-shaped contour line 3c, and the deformation restraining force is made extremely small for deformation in a direction perpendicular to that direction.
このように構成してなる空気ばねは、たとえば、ボルス
タレス台車に、上面板３の笠状輪郭線３ｃが車両の左右
方向に向くようにそれを適用した場合において、その空
気ばねに車体側もしくは台車側のいずれか一方から上下
方向もくしは水平方向の振動が入力されたときには、通
常は、ゴムベローズ１２の、その振動方向への変形によ
ってそれを有効に吸収することにより、その振動の、台
車側もしくは車体側への伝達を十分に防止することがで
きるとともに、ゴムベローズ内および補強空気室内の空
気の、絞り通路９ａ、ときとしては絞り通路９ａおよび
可変絞り弁１１を通る流動に基づき、その振動を、これ
も十分に減衰させることができる。For example, when the air spring configured in this manner is applied to a bolsterless bogie so that the cap-shaped contour line 3c of the top plate 3 faces in the left-right direction of the vehicle, the air spring is attached to the vehicle body side or the bogie. When vertical or horizontal vibration is input from one of the sides, the rubber bellows 12 deforms in the direction of vibration to effectively absorb the vibration, thereby reducing the vibration. It is possible to sufficiently prevent the transmission of air to the side or the vehicle body side, and also to prevent the air from being transmitted to the rubber bellows and the reinforced air chamber based on the flow of air through the throttle passage 9a, sometimes through the throttle passage 9a and the variable throttle valve 11. Vibrations can also be sufficiently damped.
しかもここでは、変形拘束部１８を、上面板３に前述し
たように形成していることから、車体と台車とのとくに
は水平面内での相対変位に際し、台車の前後方向への変
位は、変形拘束手段１８の影響をほとんど受けることな
く、軟かいばね特性の下で比較的に自由に行われことに
なる一方、車体の左右方向の変位は、その変形拘束手段
１８が極めて効果的に作用することにより、とくに硬い
ばね特性の下にて行われることになる。Moreover, here, since the deformation restraining portion 18 is formed on the top plate 3 as described above, when there is a relative displacement between the car body and the bogie, especially in the horizontal plane, the displacement of the bogie in the front and rear direction is prevented by the deformation. While the deformation restraint means 18 is hardly affected by the restraint means 18 and is relatively freely carried out under the soft spring characteristics, the left and right displacement of the vehicle body is caused by the deformation restraint means 18 acting extremely effectively. This results in particularly stiff spring characteristics.
従ってこの空気ばねでは、所期した通りの異方性を実現
することができ、同時に、この空気ばねには、従来技術
で述べた遷移突部Ｓが存在しないことに基づき、ゴムベ
ローズ１２の耐久性の向上をもまた実現することができ
る。Therefore, this air spring can achieve the desired anisotropy, and at the same time, due to the absence of the transition protrusion S mentioned in the prior art, the durability of the rubber bellows 12 is improved. Improvements in sexual performance can also be achieved.
第３図は、この発明の他の実施例を示す、第２図（ａ）
と同様の縦断面図であり、この例は、上面板３が、その
下面に、それの全周にわたるほぼ截頭円錐状のテーパ面
３ｄを有する場合において、そのテーパ面３ｄからさら
に下方へ迫出す変形拘束部１８を、前述した実施例とほ
ぼ同様にして設けたものである。FIG. 3 shows another embodiment of the invention, FIG. 2(a)
This is a vertical cross-sectional view similar to , and this example shows a case in which the upper plate 3 has a substantially truncated conical tapered surface 3d extending over its entire circumference on its lower surface. The deformation restricting portion 18 is provided in substantially the same manner as in the embodiment described above.
この例では、上面板３の下面それ自身が、テーパ面３ｄ
を有しており、そのテーパ面３ｄによってもゴムベロー
ズ１２の変形は幾分の抵抗を受けることから、図示の変
形拘束部１８の、笠状輪郭線３Ｃからの幅ＷＯは、前述
した例のそれの幅Ｗより狭くしている。In this example, the lower surface of the upper plate 3 itself has a tapered surface 3d.
Since the deformation of the rubber bellows 12 is somewhat resisted by the tapered surface 3d, the width WO of the illustrated deformation restraining portion 18 from the cap-shaped contour line 3C is the same as that of the above-mentioned example. It is made narrower than its width W.
このような構成の上面板３を用いた空気ばねによれば、
上述したように、テーパ面３ｄの存在に起因して、とく
には、変形拘束部１８を形成しない方向での、ゴムベロ
ーズ１２の変形抵抗は幾分増加することになるも、前述
した実施例と同様、従来技術で述べた遷移突部Ｓが存在
しないが故に、空気ばねに、所期した通りの異方性をも
たらし、併せて、ゴムベローズ１２の耐久性を大きく向
上させることができる。According to the air spring using the top plate 3 having such a configuration,
As described above, due to the presence of the tapered surface 3d, the deformation resistance of the rubber bellows 12 increases somewhat, especially in the direction in which the deformation restraining portion 18 is not formed. Similarly, since the transition protrusion S described in the prior art is not present, the air spring can be provided with the desired anisotropy, and at the same time, the durability of the rubber bellows 12 can be greatly improved.
（発明の効果）
かくして、この発明によれば、とくには、上面板の平面
視で、その上面板の、二次元方向の一方側の端部分にの
み変形拘束部を設けることにより、空気ばねに所要に応
じて異方性を付与することができ、筒状可撓膜体の耐久
性を十分に高めることができる。(Effects of the Invention) Thus, according to the present invention, in particular, by providing the deformation restraining portion only at one end portion of the top plate in the two-dimensional direction when the top plate is viewed from above, the air spring can be restrained. Anisotropy can be imparted as required, and the durability of the cylindrical flexible membrane body can be sufficiently increased.
第１図は、この発明の実施例を示す図、第２図は、上面
板を拡大して示す図、
第３図は、この発明の他の実施例を示す縦断面図、
第４図は、従来例を示す図である。
■・・・上取付部材 ２・・・下取付部材３・・
・上面板 ｌＯ・・・下面板１２・・・ゴム
ベローズ １８・・・変形拘束部１９・・・傾斜面FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is an enlarged view of the top plate, FIG. 3 is a vertical sectional view showing another embodiment of the invention, and FIG. , is a diagram showing a conventional example. ■...Top mounting member 2...Lower mounting member 3...
・Top plate lO...Bottom plate 12...Rubber bellows 18...Deformation restraint part 19...Slanted surface
Claims (1)
、上下の端部分を気密に連結した筒状可撓膜体とを具え
、この筒状可撓膜体の、上面板への連結部より外周側で
筒状可撓膜体の変形を拘束する変形拘束部をその上面板
に設けてなる異方性空気ばねであって、 上面板の平面視で、その上面板の、二次元方向の一方側
の端部分にのみ前記変形拘束部を設けてなる異方性空気
ばね。[Scope of Claims] 1. A cylindrical flexible membrane body comprising an upper surface plate, a lower surface plate, and a cylindrical flexible membrane body whose upper and lower end portions are airtightly connected to each of these face plates, the cylindrical flexible membrane body: An anisotropic air spring having a deformation restraining portion on the top plate thereof that restrains deformation of a cylindrical flexible membrane body on the outer peripheral side of the connecting portion to the top plate, An anisotropic air spring in which the deformation restraining portion is provided only at one end portion of a face plate in a two-dimensional direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26378790A JPH04145240A (en) | 1990-10-03 | 1990-10-03 | Anisotropic air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26378790A JPH04145240A (en) | 1990-10-03 | 1990-10-03 | Anisotropic air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04145240A true JPH04145240A (en) | 1992-05-19 |
Family
ID=17394255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26378790A Pending JPH04145240A (en) | 1990-10-03 | 1990-10-03 | Anisotropic air spring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04145240A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222196A (en) * | 2008-03-18 | 2009-10-01 | Bridgestone Corp | Pneumatic spring |
| JP2010221915A (en) * | 2009-03-24 | 2010-10-07 | Toyo Tire & Rubber Co Ltd | Air spring for railway rolling stock |
| JP2012017842A (en) * | 2010-07-09 | 2012-01-26 | Toyo Tire & Rubber Co Ltd | Air spring device |
| CN103062269A (en) * | 2012-12-18 | 2013-04-24 | 青岛四方车辆研究所有限公司 | Clamp pressing type air spring |
| JP2015145170A (en) * | 2014-02-03 | 2015-08-13 | 株式会社総合車両製作所 | Railway vehicle truck |
| JP2020051518A (en) * | 2018-09-27 | 2020-04-02 | ニッタ化工品株式会社 | Air spring and assembly method thereof |
| JP2020204370A (en) * | 2019-06-18 | 2020-12-24 | 株式会社ブリヂストン | Air spring |
-
1990
- 1990-10-03 JP JP26378790A patent/JPH04145240A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222196A (en) * | 2008-03-18 | 2009-10-01 | Bridgestone Corp | Pneumatic spring |
| JP2010221915A (en) * | 2009-03-24 | 2010-10-07 | Toyo Tire & Rubber Co Ltd | Air spring for railway rolling stock |
| JP2012017842A (en) * | 2010-07-09 | 2012-01-26 | Toyo Tire & Rubber Co Ltd | Air spring device |
| CN103062269A (en) * | 2012-12-18 | 2013-04-24 | 青岛四方车辆研究所有限公司 | Clamp pressing type air spring |
| JP2015145170A (en) * | 2014-02-03 | 2015-08-13 | 株式会社総合車両製作所 | Railway vehicle truck |
| JP2020051518A (en) * | 2018-09-27 | 2020-04-02 | ニッタ化工品株式会社 | Air spring and assembly method thereof |
| JP2020204370A (en) * | 2019-06-18 | 2020-12-24 | 株式会社ブリヂストン | Air spring |
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