JPS621842B2 - - Google Patents
Info
- Publication number
- JPS621842B2 JPS621842B2 JP57012900A JP1290082A JPS621842B2 JP S621842 B2 JPS621842 B2 JP S621842B2 JP 57012900 A JP57012900 A JP 57012900A JP 1290082 A JP1290082 A JP 1290082A JP S621842 B2 JPS621842 B2 JP S621842B2
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- air
- surge tank
- axles
- suspension device
- 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
- 239000000725 suspension Substances 0.000 claims description 13
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/033—Spring characteristics, e.g. mechanical springs and mechanical adjusting means characterised by regulating means acting on more than one spring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Description
【発明の詳細な説明】
本発明は２つの車軸（後車軸をいう。以下同
じ）をそれぞれエアベローズを介してシヤシに懸
架するようにしたエアサスペンシヨン装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air suspension device in which two axles (referred to as rear axles; hereinafter the same) are each suspended from a chassis via air bellows.
後輪側の車軸を２軸にして成る多軸車において
は、これらの２軸のサスペンシヨン装置をイコラ
イズすることにより、円滑な走行を行なうことが
できる。そこで例えば２軸をそれぞれエアベロー
ズを介してシヤシに懸架するとともに、これらの
エアベローズを共通のサージタンクと連通させる
ことにより、軸間の空気の流れを可能にしてイコ
ライズさせている。（実公昭47−10652号公報参
照）。しかし２つの軸のタイヤの数が異なる場合
や、２つの軸の内の一方が駆動輪である場合に
は、静的にはイコライズさせても動的には差をつ
けた方が乗心地やあるいは確実な駆動を行なう場
合に好ましい。 In a multi-axle vehicle having two axles on the rear wheel side, smooth running can be achieved by equalizing the suspension devices of these two axles. Therefore, for example, two shafts are each suspended from the chassis via air bellows, and these air bellows are communicated with a common surge tank to enable air flow between the shafts for equalization. (Refer to Utility Model Publication No. 47-10652). However, if the number of tires on the two axles is different, or if one of the two axles is a driving wheel, it may be better to equalize statically, but it may be better to make a difference dynamically for better ride comfort. Alternatively, it is preferable for reliable driving.
本発明はこのような問題点に鑑みてなされたも
のであつて、２つの後車軸をそれぞれエアベロー
ズを介してシヤシに懸架するようにしたエアサス
ペンシヨン装置において、一方の後車軸側のエア
ベローズとサージタンクとの間の接続抵抗を他方
の後車軸側のエアベローズとサージタンクとの間
の接続抵抗に対比して充分に小さくすることによ
り、これら２つのエアベローズを静的にはイコラ
イズさせてバランスさせるとともに、動的にはそ
の特性を変えるようにしたものであつて、良好な
乗心地が得られ、あるいは確実な駆動を行なうこ
とのできるエアサスペンシヨン装置を提供するこ
とを目的とするものである。 The present invention has been made in view of these problems, and includes an air suspension device in which two rear axles are suspended from the chassis via air bellows. By making the connection resistance between the air bellows and the surge tank sufficiently smaller than the connection resistance between the air bellows on the other rear axle side and the surge tank, these two air bellows can be statically equalized. The purpose of the present invention is to provide an air suspension device which is capable of achieving good riding comfort and reliable driving, by balancing the vehicle and dynamically changing its characteristics. It is something.
以下本発明の一実施例を図面を参照して説明す
る。第１図はこの実施例のエアサスペンシヨン装
置を示しており、トラツクの後側の２つの車軸
１，２はそれぞれエアベローズ３，４を介してシ
ヤシ５に懸架されている。なお車軸１，２にはそ
れぞれ車輪６，７が取付けられている。車輪６は
ダブルタイヤから構成され、また車輪７はシング
ルタイヤから構成されている。そして前方側の車
軸１を懸架するエアベローズ３は比較的大きな直
径を有する連通管８を介してサージタンク１０と
連通されている。このサージタンク１０はさらに
連通管９を介して後方側の車軸２のエアベローズ
４と連通されている。なお連通管９はその直径が
小さくなつており、それ自身が空気の流動に対し
て抵抗を有するようになつている。さらに連通管
９のサージタンク１０との接続部分には絞り１１
が設けられている。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the air suspension system of this embodiment, in which the two rear axles 1 and 2 of the truck are suspended on a chassis 5 via air bellows 3 and 4, respectively. Note that wheels 6 and 7 are attached to the axles 1 and 2, respectively. The wheels 6 are composed of double tires, and the wheels 7 are composed of single tires. An air bellows 3 that suspends the front axle 1 is communicated with a surge tank 10 via a communication pipe 8 having a relatively large diameter. This surge tank 10 is further communicated with an air bellows 4 of the rear axle 2 via a communication pipe 9. Note that the diameter of the communication pipe 9 is reduced so that it itself has resistance to the flow of air. Furthermore, a throttle 11 is provided at the connection part of the communication pipe 9 to the surge tank 10.
is provided.
このような構成において、車軸１を懸架するエ
アベローズ３がゆつくりと圧縮され、あるいは膨
張すると、このベローズ３と連通管８を介して接
続されているサージタンク１０の圧力が変化し、
このサージタンク１０とエアベローズ４との間に
圧力差が生ずる。よつて細い連通管９を通つて空
気の移動が起り、ベローズ４の内圧とサージタン
ク１０の内圧とが互に等しくなり、結局ベローズ
４の内圧とベローズ３の内圧とが互に等しくなつ
て、車軸１のエアサスペンシヨン装置と車軸２の
エアサスペンシヨン装置とは静的にイコライズさ
れることになる。 In such a configuration, when the air bellows 3 that suspends the axle 1 is slowly compressed or expanded, the pressure in the surge tank 10 connected to the bellows 3 via the communication pipe 8 changes,
A pressure difference is generated between the surge tank 10 and the air bellows 4. Therefore, movement of air occurs through the narrow communication pipe 9, and the internal pressure of the bellows 4 and the internal pressure of the surge tank 10 become equal to each other, and eventually the internal pressure of the bellows 4 and the internal pressure of the bellows 3 become equal to each other, The air suspension device of axle 1 and the air suspension device of axle 2 are statically equalized.
これに対して急激な振動を受けた場合には、ベ
ローズ３とサージタンク１０との間の空気の流動
は妨げられず、ベローズ３のばね定数の変動はサ
ージタンク１０によつて緩和される。しかるにこ
の場合におけるベローズ４とサージタンク１０と
の間の空気の流動は、細い連通管９自身の抵抗と
絞り１１の抵抗とによつて阻止されることにな
る。すなわち動的には２つのベローズ３，４がイ
コライズされなくなり、急激に大きな荷重が加わ
つた場合には、ベローズ３のばね定数が小さくな
つても、ベローズ４のばね定数は大きな値のまま
に保持されることになる。 On the other hand, in the case of sudden vibration, the flow of air between the bellows 3 and the surge tank 10 is not hindered, and fluctuations in the spring constant of the bellows 3 are alleviated by the surge tank 10. However, in this case, the flow of air between the bellows 4 and the surge tank 10 is prevented by the resistance of the thin communication pipe 9 itself and the resistance of the throttle 11. In other words, dynamically, the two bellows 3 and 4 are no longer equalized, and if a large load is suddenly applied, even if the spring constant of bellows 3 becomes small, the spring constant of bellows 4 remains at a large value. will be done.
このように本実施例によれば、静的には２つの
車軸１，２間のエアサスペンシヨン装置をイコラ
イズするとともに、ダブルタイヤから成る車輪６
側のベローズ３とシングルタイヤから成る車輪７
側のベローズ４とを動的には互に特性を変えるよ
うにしているために、最適な乗心地を達成するこ
とができる。 In this way, according to this embodiment, the air suspension device between the two axles 1 and 2 is statically equalized, and the wheels 6 made of double tires are equalized.
Wheel 7 consisting of side bellows 3 and a single tire
Since the characteristics of the side bellows 4 are dynamically changed, optimum riding comfort can be achieved.
次に上記実施例の変形例を第２図につき説明す
る。なお上記実施例と対応する部分には同一の符
号を付して説明する。この変形例においては後２
軸の車軸の内、前方側の車輪６が従動輪をなし、
また後方側の車輪７が駆動輪をなしている。さら
にサージタンク１０がベローズ３の下部に連設さ
れているピストン型のタンクから構成されてい
る。このタンク１０はベローズ３を介して連通管
１５により、ベローズ４と連通されている。そし
て連通管１５のベローズ３および４との接続部分
にはそれぞれ絞り１６が設けられている。 Next, a modification of the above embodiment will be explained with reference to FIG. Note that parts corresponding to those in the above embodiment will be described with the same reference numerals. In this modification, the latter 2
The front wheel 6 of the axle of the shaft serves as a driven wheel,
Further, the wheels 7 on the rear side serve as driving wheels. Further, a surge tank 10 is constituted by a piston-type tank connected to the lower part of the bellows 3. This tank 10 is communicated with the bellows 4 via the bellows 3 and a communication pipe 15. A throttle 16 is provided at each connection portion of the communication pipe 15 with the bellows 3 and 4.
従つてこの変形例においても、サージタンク１
０を有するベローズ３とサージタンクを有しない
ベローズ４とは互に静イコライズされるととも
に、絞り１６の作用によつてベローズ３とベロー
ズ４とは動的にはイコライズされないようにな
る。従つて路面の振動等によつて２つのベローズ
３，４にそれぞれ急激な荷重が加わつた場合に
は、ベローズ３のばね定数が小さくなるが、ベロ
ーズ４のばね定数は小さくならない。すなわち駆
動輪７側のベローズ４は硬いままになり、これに
よつて駆動輪７の路面に対するスリツプを防止し
て確実な駆動を行なうことができる。 Therefore, also in this modification, the surge tank 1
0 and the bellows 4 without a surge tank are statically equalized, and due to the action of the diaphragm 16, the bellows 3 and the bellows 4 are not dynamically equalized. Therefore, when a sudden load is applied to each of the two bellows 3 and 4 due to road vibration or the like, the spring constant of the bellows 3 becomes small, but the spring constant of the bellows 4 does not become small. That is, the bellows 4 on the driving wheel 7 side remains hard, thereby preventing the driving wheel 7 from slipping on the road surface and ensuring reliable driving.
以上に述べたように本発明によれば、一方の車
軸側のエアベローズに連通されたサージタンクが
他方の車軸側のエアベローズと抵抗を有する空気
流路を介して連通して両エアベローズとサージタ
ンクとの接続抵抗を大きく異らせてエアベローズ
の動的特性を異らせているために、２つの後車軸
間で静的にはイコライズされ、しかも動的には特
性の異なるエアサスペンシヨン装置を提供するこ
ができる。 As described above, according to the present invention, the surge tank communicates with the air bellows on one axle side and communicates with the air bellows on the other axle side via the air flow path having resistance. Because the dynamic characteristics of the air bellows are varied by greatly varying the connection resistance with the surge tank, the air suspension is statically equalized between the two rear axles, but has different dynamic characteristics. The system can be provided with a
第１図は本発明の一実施例に係るエアサスペン
シヨン装置の概略正面図、第２図は変形例に係る
エアサスペンシヨン装置の概略正面図である。
なお図面に用いた符号において、１，２……車
軸、３，４……エアベローズ、５……シヤシ、９
……連通管、１０……サージタンク、１１……絞
り、１５……連通管、１６……絞り、である。
FIG. 1 is a schematic front view of an air suspension device according to an embodiment of the present invention, and FIG. 2 is a schematic front view of an air suspension device according to a modification. In addition, in the symbols used in the drawings, 1, 2... Axle, 3, 4... Air bellows, 5... Seat, 9
. . . communicating pipe, 10… surge tank, 11… throttle, 15… communicating pipe, 16… throttle.
Claims (1)
てシヤシに懸架するようにしたエアサスペンシヨ
ン装置において、一方の後車軸側のエアベローズ
に実質的に抵抗のない状態で連通するサージタン
クを設けるとともに、他方の後車軸側のエアベロ
ーズと前記サージタンクとを前記一方の後車軸側
に対比して充分に大きな抵抗を有する空気通路を
介して連通させたことを特徴とするエアサスペン
シヨン装置。1. In an air suspension device in which two rear axles are suspended from the chassis via air bellows, a surge tank is provided which communicates with the air bellows on one of the rear axles in a substantially resistance-free state, and An air suspension device characterized in that an air bellows on the other rear axle side and the surge tank are communicated through an air passage having a sufficiently larger resistance than the air bellows on the one rear axle side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290082A JPS58128913A (en) | 1982-01-29 | 1982-01-29 | Air-suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290082A JPS58128913A (en) | 1982-01-29 | 1982-01-29 | Air-suspension device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58128913A JPS58128913A (en) | 1983-08-01 |
| JPS621842B2 true JPS621842B2 (en) | 1987-01-16 |
Family
ID=11818250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1290082A Granted JPS58128913A (en) | 1982-01-29 | 1982-01-29 | Air-suspension device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58128913A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7690663B2 (en) | 1998-07-29 | 2010-04-06 | Angela Kate Haire | Vehicle suspension with linked air bags |
| DE69939218D1 (en) * | 1998-07-29 | 2008-09-11 | Haire Angela Kate | VEHICLE MOUNTING WITH CONNECTED AIR SPRINGS |
| US7740257B2 (en) | 1998-07-29 | 2010-06-22 | Angela Kate Haire | Vehicle suspension with linked air bags |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4710652U (en) * | 1971-03-05 | 1972-10-07 |
-
1982
- 1982-01-29 JP JP1290082A patent/JPS58128913A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4710652U (en) * | 1971-03-05 | 1972-10-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58128913A (en) | 1983-08-01 |
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