JPH06241270A - Bush type vibration control device - Google Patents
Bush type vibration control deviceInfo
- Publication number
- JPH06241270A JPH06241270A JP2525393A JP2525393A JPH06241270A JP H06241270 A JPH06241270 A JP H06241270A JP 2525393 A JP2525393 A JP 2525393A JP 2525393 A JP2525393 A JP 2525393A JP H06241270 A JPH06241270 A JP H06241270A
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- liquid
- liquid chambers
- spring constant
- type vibration
- 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
Landscapes
- Vehicle Body Suspensions (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車等の車両、一般
産業用の機械等に用いられ、振動発生部からの振動を吸
収減衰するブッシュ型防振装置に係り、特に、サスペン
ションブッシュ等に好適に用いられる液体封入式のブッ
シュ型防振装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bush type vibration damping device which is used for vehicles such as automobiles, machines for general industries and the like, and which absorbs and dampens vibrations from a vibration generating part, and more particularly to a suspension bushing and the like. The present invention relates to a liquid-filled bush type vibration damping device that is preferably used.
【０００２】[0002]
【従来の技術】自動車のサスペンションにはブッシュ型
防振装置が用いられている。近年では、このブッシュ型
防振装置として減衰力を高めるために液体を封入した液
体封入式のブッシュ型防振装置が提案されている。2. Description of the Related Art A bush type vibration damping device is used for a vehicle suspension. In recent years, as this bush type vibration damping device, a liquid filled bush type vibration damping device in which a liquid is sealed in order to increase the damping force has been proposed.
【０００３】このサスペンションに用いられる液体封入
式のブッシュ型防振装置は、内筒と外筒とが平行軸状に
配設されており、内筒と外筒との間にゴム等の弾性体が
掛け渡されている。内筒を挟んで半径方向両側には、弾
性体を隔壁とする一対の液室が設けられており、各液室
は制限通路で連結されている。In a liquid-filled bush type vibration damping device used for this suspension, an inner cylinder and an outer cylinder are arranged parallel to each other, and an elastic body such as rubber is provided between the inner cylinder and the outer cylinder. Have been passed over. A pair of liquid chambers having elastic bodies as partition walls are provided on both sides of the inner cylinder in the radial direction, and the liquid chambers are connected by a restriction passage.
【０００４】この液体封入式のブッシュ型防振装置は、
内筒が振動発生部及び振動受部の一方、例えばタイヤ側
の支持部材に連結され、外筒が振動発生部及び振動受部
の他方である、例えば車体側へ連結される。This liquid-filled bush type vibration damping device is
The inner cylinder is connected to one of the vibration generating portion and the vibration receiving portion, for example, a supporting member on the tire side, and the outer cylinder is connected to the other of the vibration generating portion and the vibration receiving portion, for example, to the vehicle body side.
【０００５】この液体封入式のブッシュ型防振装置に振
動が入力すると、液室が交互に拡縮し、液体が通路内で
共振してその際にその際に発生する大きな減衰力によっ
て振動が吸収、減衰される。When vibration is input to the liquid-filled bush type vibration damping device, the liquid chambers are alternately expanded and contracted, and the liquid resonates in the passage to absorb the vibration by a large damping force generated at that time. Is attenuated.
【０００６】[0006]
【発明が解決しようとする課題】ところで、車両の悪路
走行時や、急旋回時に望まれる特性は異なり、悪路走行
時には、ばね定数が低く振動吸収能力が大きい特性が望
まれ、急旋回時には操縦安定性を確保するためにばね定
数が高いことが望まれており、従来の液体封入式のブッ
シュ型防振装置では、大きな減衰力を得ることができる
ものの、悪路走行時の性能と車両旋回時の性能とを高次
元で両立することが出来なかった。By the way, the characteristics desired when the vehicle is traveling on a bad road or when making a sharp turn are different, and when traveling on a bad road, a characteristic that the spring constant is low and the vibration absorption capacity is large is desired. It is desired that the spring constant is high in order to ensure steering stability, and although a conventional liquid-filled bush type vibration damping device can obtain a large damping force, the performance and vehicle performance on rough roads can be improved. It was not possible to achieve a high level of both turning performance.
【０００７】即ち、急旋回時等における操縦安定性を考
慮すると、悪路走行時における振動吸収性が犠牲になる
という不具合があった。That is, in consideration of the steering stability when turning sharply, there is a problem that the vibration absorbing property is sacrificed when traveling on a rough road.
【０００８】また、油圧等を使用した装置、機構でばね
定数を制御することも考えられているが、装置、機構が
大掛かりなもので行われており、複雑且つコスト高であ
るという問題があった。Further, it has been considered to control the spring constant by a device or mechanism using hydraulic pressure or the like, but the device and mechanism are large-scaled, and there is a problem that they are complicated and costly. It was
【０００９】本発明は上記事実を考慮し、ばね定数を可
変出来、しかも構成の簡単な液体封入式のブッシュ型防
振装置を提供することが目的である。In view of the above facts, it is an object of the present invention to provide a liquid-filled bush type vibration damping device which can change the spring constant and has a simple structure.
【００１０】[0010]
【課題を解決するための手段】本発明は、内筒と外筒と
の間に弾性体が介在されたブッシュ形防振装置におい
て、前記内筒を挟んで半径方向両側に配設され前記弾性
体を隔壁の一部としてそれぞれが独立した一対の液室
と、前記液室を相互に連通する通路と、前記通路に設け
られ、液体の流量を制限する制限手段と、を備えたこと
を特徴としている。DISCLOSURE OF THE INVENTION The present invention provides a bush type vibration damping device in which an elastic body is interposed between an inner cylinder and an outer cylinder. A pair of liquid chambers, each of which is independent of the body as a part of the partition wall, a passage that connects the liquid chambers to each other, and a limiting unit that is provided in the passage and limits the flow rate of the liquid. I am trying.
【００１１】[0011]
【作用】本発明のブッシュ型防振装置によれば、制限手
段によって液体の流量を制限する、例えば、通路を閉止
状態とすると、液体が液室間を相互に流れなくなり、液
室の拡縮が拘束状態となって、液室間を結ぶ方向の剛性
が高く、即ち、ばね定数が高くなる。According to the bush type vibration damping device of the present invention, when the flow rate of the liquid is restricted by the restricting means, for example, when the passage is closed, the liquid does not flow between the liquid chambers and the expansion and contraction of the liquid chambers is prevented. In the restrained state, the rigidity in the direction connecting the liquid chambers is high, that is, the spring constant is high.
【００１２】一方、制限手段によって液体の流量を制限
しない、例えば、通路を連通状態とすると、液体が液室
間を相互に自由に流れることができるため、液室は自由
に拡縮でき、液室間を結ぶ方向の剛性が低く、即ち、ば
ね定数が低くなる。On the other hand, when the flow rate of the liquid is not limited by the limiting means, for example, when the passage is in the communicating state, the liquids can freely flow between the liquid chambers, so that the liquid chambers can be freely expanded and contracted, and the liquid chambers can be freely expanded and contracted. The rigidity in the direction connecting the two is low, that is, the spring constant is low.
【００１３】したがって、例えば、このブッシュ型防振
装置を自動車のサスペンションブッシュとして用いた場
合、一般走行、旋回時等にばね定数を高くして操縦安定
性を高め、悪路走行時等にはばね定数を低くして振動吸
収性を高めることができ、操縦安定性と振動吸収性との
両方を高次元で両立させることができる。Therefore, for example, when the bush type vibration damping device is used as a suspension bush of an automobile, the spring constant is increased during general traveling, turning, etc. to improve steering stability, and the spring is restrained during traveling on rough roads. The constant can be lowered to enhance the vibration absorption, and both the steering stability and the vibration absorption can be achieved at a high level.
【００１４】なお、本発明では、制限手段は液体の流量
を制限できればよいため、複雑な油圧装置等を使用する
ことなく、簡単な構成の開閉弁等を使用でき、防振装置
を複雑化することがなくコストも最小限に抑えることが
できる。In the present invention, since the restricting means is only required to restrict the flow rate of the liquid, it is possible to use an opening / closing valve having a simple structure without using a complicated hydraulic device, which complicates the vibration isolator. And the cost can be minimized.
【００１５】また、本発明では、制限手段によって液体
の流量を小（通路の完全な閉止状態）〜大（通路の完全
な連通状態）まで可変することによって、ばね定数を連
続的に可変することもできる。Further, in the present invention, the spring constant is continuously varied by varying the flow rate of the liquid from the small amount (completely closed state of the passage) to the large amount (completely connected state of the passage) by the limiting means. You can also
【００１６】[0016]
【実施例】本発明の一実施例を図１乃至図４にしたがっ
て説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
【００１７】図１に示すように、本実施例の防振装置１
０は、一例として自動車のサスペンションブッシュとし
て用いられるものであり、制限手段の一部を構成する内
筒１２及び外筒１４を備えており、例えば、外筒１４は
サスペンションアーム側へ、内筒１２はアームシャフト
側へ連結される。As shown in FIG. 1, a vibration isolator 1 of this embodiment.
0 is used as a suspension bush of an automobile as an example, and is provided with an inner cylinder 12 and an outer cylinder 14 that form a part of the limiting means. For example, the outer cylinder 14 is directed to the suspension arm side and the inner cylinder 12 is provided. Is connected to the arm shaft side.
【００１８】外筒１４の内部には中間筒１８が圧入固定
されている。この中間筒１８の内側に内筒１２が同軸的
に配設されており、内筒１２と中間筒１８との間には、
円筒状の弾性体１６が掛け渡されている。An intermediate cylinder 18 is press-fitted and fixed inside the outer cylinder 14. The inner cylinder 12 is coaxially arranged inside the intermediate cylinder 18, and between the inner cylinder 12 and the intermediate cylinder 18,
A cylindrical elastic body 16 is bridged.
【００１９】中間筒１８の軸方向中間部は縮径された小
径部１８Ａとされており、この小径部１８Ａの外周側に
は、前記弾性体１６の一部が延設されており、外筒１４
の内周面に密着している。An intermediate portion in the axial direction of the intermediate cylinder 18 is a small diameter portion 18A having a reduced diameter, and a part of the elastic body 16 is extended on the outer peripheral side of the small diameter portion 18A. 14
It adheres to the inner surface of the.
【００２０】小径部１８Ａには、内筒１２を挟んで両側
に一対の開口１８Ｂが形成されており、弾性体１６には
各開口１８Ｂに対応して外筒１４側から内筒１２側へ窪
む凹部１６Ａが形成されている。A pair of openings 18B are formed on both sides of the small diameter portion 18A so as to sandwich the inner cylinder 12, and the elastic body 16 is recessed from the outer cylinder 14 side to the inner cylinder 12 side corresponding to each opening 18B. A recess 16A is formed.
【００２１】弾性体１６の各凹部１６Ａは外筒１４によ
って閉塞され、それぞれが独立した液室２０を構成して
いる。なお、液室２０の内部には水、オイル等の液体が
封入されている。Each recess 16A of the elastic body 16 is closed by the outer cylinder 14 to form an independent liquid chamber 20. The liquid chamber 20 is filled with a liquid such as water or oil.
【００２２】内筒１２は、両端部が弾性体１６から突出
しており、一方の端部には、軸線と直交する方向に取り
付け用の貫通孔２２が形成されている。Both ends of the inner cylinder 12 project from the elastic body 16, and a through hole 22 for mounting is formed at one end in a direction orthogonal to the axis.
【００２３】また、内筒１２の他方の端部には、同軸的
に円穴２４が形成されている。この円穴２４は、底部か
ら所定寸法が小径部２４Ａとされ、この小径部２４Ａ内
には、内筒１２と共に制限手段を構成するローター２６
が回転可能に配設されている。A circular hole 24 is coaxially formed at the other end of the inner cylinder 12. The circular hole 24 has a small-diameter portion 24A having a predetermined dimension from the bottom, and a rotor 26 that constitutes a limiting means together with the inner cylinder 12 is provided in the small-diameter portion 24A.
Are rotatably arranged.
【００２４】ローター２６は、円筒部２６Ａ、円筒部２
６Ａの一方を閉塞する閉塞部２６Ｂ及び閉塞部２６Ｂの
中央部に同軸的に一体化された軸部２６Ｃとから構成さ
れており、円筒部２６Ａの端部は円穴２４の底部に回転
摺動可能に接している。The rotor 26 includes a cylindrical portion 26A and a cylindrical portion 2
6A, and a shaft portion 26C coaxially integrated with the central portion of the closing portion 26B for closing one side of the closing portion 6A. The end portion of the cylindrical portion 26A is rotationally slid on the bottom portion of the circular hole 24. We are in contact with each other.
【００２５】円穴２４には、ローター２６の軸部２６Ｃ
側にシール部材２８が配設されている。なお、シール部
材２８のローター２６側の端部は、ローター２６の閉塞
部２６Ｃに回転摺動可能に接している。The circular hole 24 has a shaft portion 26C of the rotor 26.
The seal member 28 is disposed on the side. The end of the seal member 28 on the rotor 26 side is in contact with the closed portion 26C of the rotor 26 in a rotatable and slidable manner.
【００２６】シール部材２８の軸線部には、貫通孔３０
が形成されており、この貫通孔３０に前記ローター２６
の軸部２６Ｃが回転可能に挿入されている。A through hole 30 is formed in the axial portion of the seal member 28.
Is formed in the through hole 30.
The shaft portion 26C is rotatably inserted.
【００２７】このシール部材２８の大径部２８Ａ側に
は、モータ３２が配設されており、モータ３２の回転軸
３２Ａは、ローター２６の軸部２６Ｃに回転方向には相
対移動不可状態に連結されている。A motor 32 is disposed on the large diameter portion 28A side of the seal member 28, and a rotation shaft 32A of the motor 32 is connected to a shaft portion 26C of the rotor 26 in a relatively immovable state in the rotation direction. Has been done.
【００２８】なお、内筒１２のモータ３２側の端部近傍
の外周には、螺子部１２Ａが形成さてており、この螺子
部１２Ａには、キャップ３４が螺合して固定されてい
る。A screw portion 12A is formed on the outer periphery of the end of the inner cylinder 12 on the motor 32 side, and a cap 34 is screwed and fixed to the screw portion 12A.
【００２９】なお、このキャップ３４には、内筒１２の
貫通孔２２と平行に取付用の貫通孔３６が形成されてい
ると共に、モータ３２の導線３８が貫通して外部に取り
出されている。A through hole 36 for mounting is formed in the cap 34 in parallel with the through hole 22 of the inner cylinder 12, and a conducting wire 38 of the motor 32 penetrates and is taken out to the outside.
【００３０】図１及び図２に示すように、ローター２６
の円筒部２６Ａには、軸線を挟んで一対の円孔４０が形
成されており、内筒１２には、この円孔４０と対向する
ように、軸線を挟んで一対の円孔４２が軸線と直交する
方向に形成されている。As shown in FIGS. 1 and 2, the rotor 26
A pair of circular holes 40 are formed in the cylindrical portion 26A of the inner cylinder 12 so as to sandwich the axis, and a pair of circular holes 42 are formed in the inner cylinder 12 so as to face the circular hole 40 and sandwich the axis. It is formed in the orthogonal direction.
【００３１】このため、図３に示すように、ローター２
６の円孔４０と内筒１２の円孔４２とが対向すると、一
対の液室２０が円孔４２、円孔４０、円筒部２６Ａの内
部、円孔４０及び円孔４２を介して連通することとな
り、内筒１２の一方の円孔４２と他方の円孔４２との間
に所謂制限通路４４が形成される。For this reason, as shown in FIG.
When the circular hole 40 of 6 and the circular hole 42 of the inner cylinder 12 face each other, the pair of liquid chambers 20 communicate with each other through the circular hole 42, the circular hole 40, the inside of the cylindrical portion 26A, the circular hole 40 and the circular hole 42. Therefore, a so-called restricted passage 44 is formed between the one circular hole 42 of the inner cylinder 12 and the other circular hole 42.
【００３２】なお、ローター２６の軸部２６Ｃ及びシー
ル部材２８には、それぞれオーリング４６、４８が取り
付けられており、液室２０内の液体の、モータ３２側へ
の漏れを阻止している。O-rings 46 and 48 are attached to the shaft portion 26C of the rotor 26 and the seal member 28, respectively, to prevent the liquid in the liquid chamber 20 from leaking to the motor 32 side.
【００３３】次に本実施例の作用を説明する。本実施例
の防振装置１０は、自動車のサスペンションブッシュと
して用いるため、液室２０同士を結ぶ方向と伝達を阻止
すべき振動の振幅方向とを一致させて使用する。Next, the operation of this embodiment will be described. Since the vibration damping device 10 of the present embodiment is used as a suspension bush of an automobile, the vibration coupling device 10 is used with the direction in which the liquid chambers 20 are connected and the amplitude direction of vibration that should be blocked from being transmitted.
【００３４】実際の使用にあたっては、例えば、ハーシ
ュネスのような振動に対しては、ローター２６を回転さ
せて、図２に示すようにローター２６の円孔４０と内筒
１２の円孔４２とを一致させ、液室２０同士を連通させ
る。これによって、液室２０内の液体が制限通路４４を
介して相互に行き来することが可能となり、液室２０が
相互に拡縮可能な状態となる。ここで、振動が入力して
内筒１２と外筒１４とが液室２０同士を結ぶ方向に相対
変位すると、制限通路４４で液体が共振してばね定数が
低減され（図４参照、一例として振動数３０〜１００Hz
の領域）、振動の伝達が効果的に阻止され、乗り心地の
悪化を防止することができる。In actual use, for example, in response to vibration such as harshness, the rotor 26 is rotated so that the circular hole 40 of the rotor 26 and the circular hole 42 of the inner cylinder 12 are formed as shown in FIG. The liquid chambers 20 are made to correspond to each other and communicate with each other. As a result, the liquids in the liquid chamber 20 can move back and forth through the restriction passage 44, and the liquid chambers 20 can expand and contract with each other. Here, when vibration is input and the inner cylinder 12 and the outer cylinder 14 are relatively displaced in the direction connecting the liquid chambers 20, the liquid resonates in the restriction passage 44 and the spring constant is reduced (see FIG. 4, as an example. Frequency 30-100Hz
Area), the transmission of vibrations is effectively prevented, and the deterioration of riding comfort can be prevented.
【００３５】一方、一般走行時、旋回時等において操縦
安定性を向上させたい場合には、ローター２６を回転さ
せて、図３に示すようにローター２６の円孔４０と、内
筒１２の円孔４２とが対向しないようにする。これによ
って、液体が液室２０相互を流れなくなり、液室２０の
拡縮が拘束されるため、液室２０同士を結ぶ方向のばね
定数が高くなり（図４参照）、外力に対する内筒１２と
外筒１４との相対変位が抑えられ、操縦安定性が向上す
る。On the other hand, when it is desired to improve the steering stability during general running, turning, etc., the rotor 26 is rotated so that the circular hole 40 of the rotor 26 and the circle of the inner cylinder 12 as shown in FIG. The holes 42 should not face each other. As a result, the liquid does not flow between the liquid chambers 20 and the expansion and contraction of the liquid chambers 20 are constrained, so that the spring constant in the direction connecting the liquid chambers 20 becomes high (see FIG. 4), and the inner cylinder 12 and the outside The relative displacement with the cylinder 14 is suppressed, and the steering stability is improved.
【００３６】このように、本実施例の防振装置１０で
は、径方向のばね定数を必要に応じて変化させることが
できるため、サスペンションブッシュに用いた場合に
は、乗り心地と操縦安定性とを両立することができる。As described above, in the vibration damping device 10 of the present embodiment, the spring constant in the radial direction can be changed as needed, and therefore, when it is used for the suspension bush, the riding comfort and the steering stability are improved. Can be compatible.
【００３７】さらに、本実施例の防振装置１０では、ロ
ーター２６、内筒１２及びシール部材２８という最小現
の部品で開閉弁を構成しているため、構造が極めてシン
プルである。また、モータ３２もローター２６を回転さ
せるのみでよいため大きな出力は必要なく、小型のもの
を使用でき、本実施例のように内筒１２に内蔵可能とな
って、防振装置１０を大型化することがない。したがっ
て、防振装置１０のコストを最小限に抑えることができ
る。Further, in the vibration isolator 10 of the present embodiment, since the on-off valve is constituted by the minimum existing parts such as the rotor 26, the inner cylinder 12 and the seal member 28, the structure is extremely simple. Further, the motor 32 does not need to have a large output because it only has to rotate the rotor 26, and a small one can be used, which can be built in the inner cylinder 12 as in the present embodiment, and the vibration isolator 10 can be enlarged. There is nothing to do. Therefore, the cost of the vibration isolator 10 can be minimized.
【００３８】なお、本実施例で、制限通路４４を閉状態
と開状態とに切り換えるようにロータ２６を回転させ、
ばね定数を高低２段に切り換えるようにしたが、本発明
はこれに限らず、ローター２６の円孔４０と内筒１２の
円孔４２との重なり面積を可変させてばね定数を連続的
に可変してもよい。In the present embodiment, the rotor 26 is rotated so as to switch the restriction passage 44 between the closed state and the open state,
Although the spring constant is switched between high and low stages, the present invention is not limited to this, and the overlapping area of the circular hole 40 of the rotor 26 and the circular hole 42 of the inner cylinder 12 is changed to continuously change the spring constant. You may.
【００３９】また、本実施例では、ローター２６を駆動
する手段としてモータ３２を用いたが、本発明はこれに
限らず、ローター２６を回転駆動できるものであればモ
ータ３２以外のものであってもよいのは勿論である。ま
た、モータ３２の取付位置も、内筒１２内に内蔵するこ
とに限らず、内筒１２の外に取り付けてもよい。Further, in the present embodiment, the motor 32 is used as a means for driving the rotor 26, but the present invention is not limited to this, and any motor other than the motor 32 may be used as long as it can drive the rotor 26 to rotate. Of course, it is good. Further, the mounting position of the motor 32 is not limited to being built in the inner cylinder 12, and may be mounted outside the inner cylinder 12.
【００４０】さらに、本実施例では、液室２０同士の液
体の流れを制限する手段としてローター２６等を用いる
構成としたが、本発明はこれに限らず、液体の流れを制
限する手段としては一般の油圧回路等に用いられる開閉
弁（電磁弁）等を用いることもできる。Further, in the present embodiment, the rotor 26 and the like are used as means for limiting the flow of liquid between the liquid chambers 20, but the present invention is not limited to this, and means for limiting the flow of liquid is provided. An on-off valve (solenoid valve) used in a general hydraulic circuit or the like can also be used.
【００４１】また、本実施例では、防振装置１０をサス
ペンションブッシュとして用いた例を示したが、本発明
はこれに限らず、本発明の防振装置はキャブマウント、
ボディーマウント、サスペンションマウント、等の他の
マウントに用いてもよいのは勿論である。Further, in the present embodiment, the example in which the vibration isolator 10 is used as the suspension bush is shown, but the present invention is not limited to this, and the vibration isolator of the present invention is a cab mount,
Of course, it may be used for other mounts such as a body mount and a suspension mount.
【００４２】[0042]
【発明の効果】以上説明したように、本発明のブッシュ
型防振装置は上記構成としたので、極めて簡単な構成で
ばね定数を可変でき、例えば、本発明のブッシュ型防振
装置をサスペンションブッシュとして用いた場合には、
旋回時等の操縦安定性と悪路走行等における振動吸収性
とを両立でき、しかもコストも最小限に抑えることがで
きるという優れた効果を有する。As described above, since the bush type vibration damping device of the present invention has the above-mentioned structure, the spring constant can be varied with a very simple structure. When used as
It has an excellent effect that both the steering stability at the time of turning and the vibration absorption at the time of traveling on a bad road can be made compatible and the cost can be minimized.
【図１】本発明の一実施例に係る防振装置を示す軸線に
沿った断面図である。FIG. 1 is a sectional view taken along the axis of a vibration damping device according to an embodiment of the present invention.
【図２】制限通路の連通した状態を示す、図１の防振装
置の２−２線断面図である。FIG. 2 is a cross-sectional view taken along line 2-2 of the vibration isolator of FIG. 1, showing a state in which the restricted passages are in communication.
【図３】制限通路の閉止した状態を示す、防振装置の断
面図である。FIG. 3 is a cross-sectional view of the vibration control device showing a closed state of the restriction passage.
【図４】本実施例の防振装置の特性の変化を示すグラフ
である。FIG. 4 is a graph showing changes in the characteristics of the image stabilization device of this embodiment.
１０ 防振装置（ブッシュ型防振装置） １２ 内筒（制限手段） １４ 外筒 １６ 弾性体 ２０ 液室 ２６ ローター（制限手段） ４４ 制限通路 10 Anti-Vibration Device (Bush Type Anti-Vibration Device) 12 Inner Cylinder (Limiting Means) 14 Outer Cylinder 16 Elastic Body 20 Liquid Chamber 26 Rotor (Limiting Means) 44 Restriction Passage
Claims (1)
ブッシュ形防振装置において、 前記内筒を挟んで半径方向両側に配設され前記弾性体を
隔壁の一部としてそれぞれが独立した一対の液室と、 前記液室を相互に連通する通路と、 前記通路に設けられ、液体の流量を制限する制限手段
と、 を備えたことを特徴とするブッシュ型防振装置。1. A bush type vibration damping device in which an elastic body is interposed between an inner cylinder and an outer cylinder, wherein the elastic bodies are arranged on both sides in the radial direction with the inner cylinder interposed therebetween, and the elastic bodies are respectively formed as part of partition walls. A bush-type vibration damping device comprising: a pair of independent liquid chambers; a passage that connects the liquid chambers to each other; and a limiting unit that is provided in the passage and limits the flow rate of the liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2525393A JPH06241270A (en) | 1993-02-15 | 1993-02-15 | Bush type vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2525393A JPH06241270A (en) | 1993-02-15 | 1993-02-15 | Bush type vibration control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06241270A true JPH06241270A (en) | 1994-08-30 |
Family
ID=12160845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2525393A Pending JPH06241270A (en) | 1993-02-15 | 1993-02-15 | Bush type vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06241270A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014194255A (en) * | 2013-03-29 | 2014-10-09 | Railway Technical Research Institute | Elastic body bush and axle box supporting device |
| CN114893533A (en) * | 2022-04-01 | 2022-08-12 | 中国第一汽车股份有限公司 | Hydraulic bushing controlled by electromagnetic valve |
-
1993
- 1993-02-15 JP JP2525393A patent/JPH06241270A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014194255A (en) * | 2013-03-29 | 2014-10-09 | Railway Technical Research Institute | Elastic body bush and axle box supporting device |
| CN114893533A (en) * | 2022-04-01 | 2022-08-12 | 中国第一汽车股份有限公司 | Hydraulic bushing controlled by electromagnetic valve |
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