JP3409685B2 - Anti-vibration support device - Google Patents
Anti-vibration support deviceInfo
- Publication number
- JP3409685B2 JP3409685B2 JP6858198A JP6858198A JP3409685B2 JP 3409685 B2 JP3409685 B2 JP 3409685B2 JP 6858198 A JP6858198 A JP 6858198A JP 6858198 A JP6858198 A JP 6858198A JP 3409685 B2 JP3409685 B2 JP 3409685B2
- Authority
- JP
- Japan
- Prior art keywords
- movable member
- peripheral portion
- fixed
- support device
- electromagnetic actuator
- 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
Landscapes
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば車両のエ
ンジン等の振動体を車体等の支持体に防振しつつ支持す
る装置に係り、特にシール部材の改善に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting a vibration body such as a vehicle engine on a support body such as a vehicle body while damping the vibration, and more particularly to an improvement of a seal member.
【０００２】[0002]
【従来の技術】この種の従来の防振支持装置として、例
えば特開平９−２７３５８５号公報に記載されるものが
ある。この防振支持装置は、エンジンを弾性的に支持す
る弾性体と、該弾性体の内部に形成される流体室と、該
流体室の一部を形成する可動板と、可動板の流体室の反
対側に設けられ、可動板を変位させ流体室内の圧力を変
化させる電磁アクチュエータとから形成される。また、
可動板の全周には外周が防振支持装置本体側に加硫接着
されたシールゴムが形成され、流体室の電磁アクチュエ
ータ側への液漏れを防止している。2. Description of the Related Art As a conventional anti-vibration support device of this type, there is one disclosed in Japanese Patent Application Laid-Open No. 9-273585. This anti-vibration support device includes an elastic body that elastically supports an engine, a fluid chamber formed inside the elastic body, a movable plate that forms a part of the fluid chamber, and a fluid chamber of the movable plate. And an electromagnetic actuator which is provided on the opposite side and displaces the movable plate to change the pressure in the fluid chamber. Also,
A seal rubber, which is vulcanized and adhered to the main body of the vibration isolating support device, is formed around the entire circumference of the movable plate to prevent liquid leakage to the electromagnetic actuator side of the fluid chamber.
【０００３】そして、エンジンの駆動状態から防振支持
装置に入力されるエンジンの振動を推定し、弾性体を介
して入力されるエンジン振動による流体室内の圧力変化
を低減するように可動板を駆動させる。すなわち、エン
ジンの振動が防振支持装置に入力される間での伝達関数
を算出すると共に、実際に防振支持装置から車体へ伝達
される振動入力を荷重センサにて検出し、この検出値の
自乗和が最小となるように伝達関数を随時更新するいわ
ゆるＬＭＳアルゴリズムを用いて、エンジンから防振支
持装置を介して車体への振動伝達が最小となるように制
御している。The engine vibration input to the anti-vibration support device is estimated from the driving state of the engine, and the movable plate is driven so as to reduce the pressure change in the fluid chamber due to the engine vibration input via the elastic body. Let That is, the transfer function while the engine vibration is input to the anti-vibration support device is calculated, and the vibration input actually transmitted from the anti-vibration support device to the vehicle body is detected by the load sensor. The so-called LMS algorithm that updates the transfer function as needed to minimize the sum of squares is used to control the vibration transfer from the engine to the vehicle body via the anti-vibration support device.
【０００４】また、前記可動板は、防振支持装置本体側
に外周部が係止された板ばねの内周部にて弾性的に支持
されており、電磁アクチュエータの電磁力の非発生時に
は電磁石に設けられている永久磁石の磁力と板ばねの弾
性力の釣り合うところに位置している。そして、電磁ア
クチュエータの電磁力の磁性方向が磁石の磁力と同じ方
向であると可動板は電磁アクチュエータ側に移動して流
体室を拡張し、電磁石の磁性方向が磁石の磁力と反対方
向であると可動板は電磁アクチュエータの反対方向に移
動して流体室を圧縮するようになっている。Further, the movable plate is elastically supported by an inner peripheral portion of a leaf spring whose outer peripheral portion is locked on the main body side of the anti-vibration supporting device, and when the electromagnetic force of the electromagnetic actuator is not generated, an electromagnet is generated. It is located at a position where the magnetic force of the permanent magnet and the elastic force of the leaf spring are balanced. When the magnetic direction of the electromagnetic force of the electromagnetic actuator is the same as the magnetic force of the magnet, the movable plate moves to the electromagnetic actuator side to expand the fluid chamber, and the magnetic direction of the electromagnet is opposite to the magnetic force of the magnet. The movable plate moves in the direction opposite to the electromagnetic actuator to compress the fluid chamber.
【０００５】[0005]
【発明が解決しようとする課題】ところで、前記シール
ゴムは可動板の外周及び防振支持装置本体側と加硫接着
されることから、これらを一体的に構成したアッセンブ
リーとして防振支持装置に組み付けるようにしており、
組付けた際に可動板が永久磁石に引きつけられ磁力と釣
り合う弾性力を発生させるまで板ばねが撓むようになっ
ている。このとき、可動板の外周に設けられているシー
ルゴムも弾性変形するため、磁力と対向する弾性力は板
ばね撓みによるものの他にシールゴムも弾性力を発生さ
せている。By the way, since the seal rubber is vulcanized and adhered to the outer periphery of the movable plate and the main body side of the vibration isolating support device, it should be assembled to the vibration isolating support device as an integrated assembly. And
When assembled, the leaf spring is designed to bend until the movable plate is attracted to the permanent magnet to generate an elastic force that balances the magnetic force. At this time, since the seal rubber provided on the outer periphery of the movable plate is also elastically deformed, the elastic force opposing the magnetic force is not only due to the bending of the leaf spring, but also the seal rubber generates an elastic force.
【０００６】しかしながら、防振支持装置の非制御中に
はシールゴムは常に弾性変形され弾性力を発生させてい
ることになるため、早期に弾性疲労を起こすことが考え
られる。また、弾性疲労により弾性力が変化すると永久
磁石の磁力と釣り合う弾性力が変化し、可動板と電磁石
との初期のギャップが変化して電磁力によって駆動され
る可動板の駆動力も変化するため制御性能が悪化する問
題が考えられる。However, since the seal rubber is always elastically deformed to generate an elastic force during non-control of the anti-vibration supporting device, it is considered that elastic fatigue is caused at an early stage. Also, when the elastic force changes due to elastic fatigue, the elastic force that balances the magnetic force of the permanent magnet changes, the initial gap between the movable plate and the electromagnet changes, and the driving force of the movable plate that is driven by electromagnetic force also changes. There is a possibility that the performance will deteriorate.
【０００７】本発明は、このような問題に鑑みてなされ
たものであって、シール部材の耐久性を向上させながら
安定した防振制御特性を得ることができる防振支持装置
を提供することを目的としている。The present invention has been made in view of the above problems, and it is an object of the present invention to provide an anti-vibration support device capable of obtaining stable anti-vibration control characteristics while improving the durability of a seal member. Has an aim.
【０００８】[0008]
【課題を解決するための手段】上記目的を解決するため
に、請求項１に記載の防振支持装置は、支持弾性体と、
この支持弾性体の一端側が固定される第１部材と、前記
支持弾性体の他端側が固定される第２部材と、前記支持
弾性体及び前記第２部材によって画成され内部に流体が
封入された流体室と、前記第２部材の内部に配設されて
前記流体室の容積を変化させる方向に変位する可動部材
と、この可動部材を挟んで前記流体室とは逆側に位置す
るように前記第２部材に支持され且つ前記可動部材を変
位させる電磁アクチュエータと、前記可動部材が前記電
磁アクチュエータに対向するように前記可動部材を弾性
支持する板ばねと、内周部が前記可動部材の外周に固定
され、外周部が第２部材に固定されており、前記流体室
から前記電磁アクチュエータへの流体の漏洩を防止する
弾性体からなるリング形状のシール部材とを有し、前記
電磁アクチュエータは、前記可動部材を引きつける磁力
を発生する永久磁石と、駆動信号に応じて前記永久磁石
の磁力方向に対して正逆方向に電磁力が発生して前記可
動部材を変位させる励磁コイルとを備えている防振支持
装置において、前記励磁コイルの電磁力の非発生時に、
前記永久磁石の磁力と前記流体室内の流体の圧力及び質
量と前記可動部材の重量とを合わせた力に対して、前記
板ばねの支持反力が釣り合う位置まで前記可動部材が変
位し、当該可動部材と前記電磁アクチュエータとの間に
初期のギャップを設定したときに、前記シール部材の弾
性変形が略ゼロとなるとともに、前記シール部材の外周
部が固着する前記第２部材の固着面を曲面形状に形成し
た。 In order to solve the above-mentioned object, a vibration-damping support device according to a first aspect of the present invention comprises a support elastic body,
A first member to which one end side of the support elastic body is fixed, a second member to which the other end side of the support elastic body is fixed, a fluid which is defined by the support elastic body and the second member A fluid chamber, a movable member that is disposed inside the second member and is displaced in a direction that changes the volume of the fluid chamber, and a movable member that is located on the opposite side of the fluid chamber with the movable member interposed therebetween. An electromagnetic actuator that is supported by the second member and displaces the movable member, a leaf spring that elastically supports the movable member so that the movable member faces the electromagnetic actuator, and an inner peripheral portion of the movable member is an outer periphery of the movable member. A ring-shaped seal member made of an elastic body for preventing fluid from leaking from the fluid chamber to the electromagnetic actuator, the electromagnetic actuator being fixed to the second member. Includes a permanent magnet that generates a magnetic force that attracts the movable member, and an excitation coil that displaces the movable member by generating an electromagnetic force in a direction opposite to a magnetic force direction of the permanent magnet according to a drive signal. In the anti-vibration supporting device, when the electromagnetic force of the exciting coil is not generated,
Magnetic force of the permanent magnet and pressure and quality of fluid in the fluid chamber
For the combined force of the amount and the weight of the movable member,
The movable member is changed to a position where the supporting reaction force of the leaf spring is balanced.
Between the movable member and the electromagnetic actuator.
When the initial gap is set, the
The elastic deformation is almost zero and the outer circumference of the seal member
Forming a curved surface on the fixing surface of the second member to which the portion is fixed,
It was
【０００９】また、請求項２記載の発明は、支持弾性体
と、この支持弾性体の一端側が固定される第１部材と、
前記支持弾性体の他端側が固定される第２部材と、前記
支持弾性体及び前記第２部材によって画成され内部に流
体が封入された流体室と、前記第２部材の内部に配設さ
れて前記流体室の容積を変化させる方向に変位する可動
部材と、この可動部材を挟んで前記流体室とは逆側に位
置するように前記第２部材に支持され且つ前記可動部材
を変位させる電磁アクチュエータと、前記可動部材が前
記電磁アクチュエータに対向するように前記可動部材を
弾性支持する板ばねと、内周部が前記可動部材の外周に
固定され、外周部が第２部材に固定されており、前記流
体室から前記電磁アクチュエータへの流体の漏洩を防止
する弾性体からなるリング形状のシール部材とを有し、
前記電磁アクチュエータは、前記可動部材を引きつける
磁力を発生する永久磁石と、駆動信号に応じて前記永久
磁石の磁力方向に対して正逆方向に電磁力が発生して前
記可動部材を変位させる励磁コイルとを備えている防振
支持装置において、前記励磁コイルの電磁力の非発生時
に、前記永久磁石の磁力と前記流体室内の流体の圧力及
び質量と前記可動部材の重量とを合わせた力に対して、
前記板ばねの支持反力が釣り合う位置まで前記可動部材
が変位し、当該可動部材と前記電磁アクチュエータとの
間に初期のギャップを設定したときに、前記シール部材
の弾性変形が略ゼロとなるとともに、前記シール部材の
内周部が固着する可動部材の外周の固着面を曲面形状に
形成した。 The invention according to claim 2 is the support elastic body.
And a first member to which one end side of the support elastic body is fixed,
A second member to which the other end side of the support elastic body is fixed;
It is defined by the supporting elastic body and the second member and flows inside.
A fluid chamber in which a body is enclosed and a second chamber disposed inside the second member.
Movable to move in the direction that changes the volume of the fluid chamber
The member and the movable member on the opposite side of the fluid chamber.
The movable member supported by the second member so as to be placed therein.
The electromagnetic actuator that displaces the
Set the movable member so that it faces the electromagnetic actuator.
A leaf spring that elastically supports and an inner peripheral portion on the outer periphery of the movable member.
Is fixed and the outer peripheral portion is fixed to the second member.
Prevents fluid leakage from the body chamber to the electromagnetic actuator
And a ring-shaped seal member made of an elastic body,
The electromagnetic actuator attracts the movable member
A permanent magnet that generates a magnetic force and the permanent magnet depending on the drive signal
Before electromagnetic force is generated in the direction opposite to the magnetic force direction of the magnet
Anti-vibration provided with an exciting coil for displacing the movable member
When the electromagnetic force of the exciting coil is not generated in the supporting device
The magnetic force of the permanent magnet and the pressure of the fluid in the fluid chamber.
And the force that combines the mass and the weight of the movable member,
The movable member up to a position where the supporting reaction force of the leaf spring is balanced.
Of the movable member and the electromagnetic actuator
When the initial gap is set between
The elastic deformation of the
The curved surface of the fixed surface on the outer circumference of the movable member to which the inner circumference is fixed
Formed.
【００１０】また、請求項３記載の発明は、請求項１又
は２記載の防振支持装置において、前記シール部材は、
前記外周部に対して前記内周部が前記電磁アクチュエー
タ側に位置するように、前記外周部から内周部に向かう
に従い下り傾斜を付けて形成した。 According to a third aspect of the invention, in the vibration-damping support device according to the first or second aspect, the seal member is
The inner peripheral portion is the electromagnetic actuator with respect to the outer peripheral portion.
From the outer circumference to the inner circumference so that it is located on the
Therefore, it was formed with a downward slope.
【００１１】また、請求項４記載の発明は、請求項１乃
至３の何れかに記載の防振支持装置において、前記第２
部材に、前記可動部材の外周に向けて突出する環状の突
出部を形成し、この突出部の全周に前記シール部材の外
周部を固着した。 [0011] The invention of claim 4, wherein, in the vibration-damping support device according to any one of claims 1 to 3, wherein the second
An annular protrusion protruding toward the outer periphery of the movable member.
The protrusion is formed, and the outer circumference of the sealing member is
The periphery was fixed.
【００１２】また、請求項５記載の発明は、請求項１乃
至４の何れかに記載の防振支持装置において、前記可動
部材にこの外周から前記可動部材の変位方向に向けて突
出する環状のリブを形成し、このリブの全周に前記シー
ル部材の内周部を固着した。According to a fifth aspect of the present invention, in the vibration-damping support device according to any one of the first to fourth aspects, the movable member has an annular shape protruding from the outer periphery in the displacement direction of the movable member. A rib was formed, and the inner peripheral portion of the seal member was fixed to the entire circumference of the rib.
【００１３】また、請求項６記載の発明は、請求項１記
載の防振支持装置において、前記シール部材の内周部が
固着する可動部材の外周の固着面を、曲面形状に形成し
た。The invention according to claim 6 is the same as claim 1.
In the mounted anti-vibration supporting device, the fixed surface of the outer periphery of the movable member to which the inner peripheral portion of the seal member is fixed is formed in a curved shape.
【００１４】また、請求項７記載の発明は、請求項１乃
至６の何れかに記載の防振支持装置において、前記可動
部材の外周に固定したシール部材を、前記可動部材の前
記流体室に対向する面の略全域を覆うように延長して設
けた。According to a seventh aspect of the invention, in the vibration-damping support device according to any one of the first to sixth aspects, a seal member fixed to the outer periphery of the movable member is provided in the fluid chamber of the movable member. The extension was provided so as to cover substantially the entire area of the facing surfaces.
【００１５】また、請求項８記載の発明は、請求項１乃
至７の何れかに記載の防振支持装置において、前記シー
ル部材を、前記可動部材の外周に固定されている外周部
から前記第２部材に固定されている内周部までの肉厚を
略均一に形成するとともに、前記第２部材側に寄った外
周側に局部的に肉厚が減少する環状の凹み部を形成し
た。The invention according to claim 8 is the vibration isolating support device according to any one of claims 1 to 7, wherein the seal member is arranged from the outer peripheral portion fixed to the outer periphery of the movable member to the first outer peripheral portion. The thickness up to the inner peripheral portion fixed to the two members is formed to be substantially uniform, and an annular recessed portion whose thickness is locally reduced is formed on the outer peripheral side close to the second member side.
【００１６】さらに、請求項９記載の発明は、請求項１
乃至７の何れかに記載の防振支持装置において、前記シ
ール部材を、前記第２部材に固定されている外周部から
前記可動部材の外周に固定されている内周部に向かうに
従い、徐々に肉厚を増大させて形成した。Further, the invention of claim 9 is the same as claim 1.
In the vibration-damping support device according to any one of 1 to 7, the seal member is gradually moved from an outer peripheral portion fixed to the second member toward an inner peripheral portion fixed to an outer periphery of the movable member. It was formed by increasing the wall thickness.
【００１７】[0017]
【発明の効果】請求項１の発明によると、電磁アクチュ
エータの電磁力が発生していないときには、可動部材を
電磁アクチュエータへ引きつける永久磁石の磁力と流体
室内の流体の圧力及び質量と可動部材の重量とを合わせ
た力に対して、板ばねの支持反力が釣り合う位置まで前
記可動部材が変位し、当該可動部材と前記電磁アクチュ
エータとの間に初期のギャップを設定したときに、前記
シール部材の弾性変形が略ゼロとなるようにしたこと
で、電磁アクチュエータの電磁力が発生して可動部材が
流体室の容積を変化させる方向に変位するときだけシー
ル部材が変形して歪みが発生するので、従来装置のシー
ル部材と比較して永久歪みが発生しにくく、疲労が容易
に生じにくい。したがって、シール部材の耐久性を向上
させることができる。According to the invention of claim 1, the electromagnetic actuator is
When the electromagnetic force of the data is not generated , the magnetic force of the permanent magnet that attracts the movable member to the electromagnetic actuator and the fluid
Combine the pressure and mass of the fluid in the room with the weight of the movable member.
To the position where the supporting reaction force of the leaf spring balances
When the movable member is displaced, the movable member and the electromagnetic actuator are moved.
When setting the initial gap with the data,
The elastic deformation of the seal member is set to almost zero.
Thus, the seal member deforms and causes distortion only when the electromagnetic force of the electromagnetic actuator is generated and the movable member is displaced in the direction in which the volume of the fluid chamber is changed. Is less likely to occur and fatigue is less likely to occur. Therefore, the durability of the seal member can be improved.
【００１８】また、シール部材のばね定数を無視して電
磁アクチュエータと可動部材との間の初期のギャップを
設定することができるので、電磁アクチュエータで発生
する力の伝達特性が大きく変化することがなく、常に良
好な防振効果を得るための制御系を設計する上で有利と
なる。また、シール部材の外周部が固着する第２部材の
固着面を曲面形状に形成したことから。シール部材の外
周部が弾性変形してもその外周部に加わる応力が分散
し、シール部材の外周部及び第２部材間の固着力が増大
する。 Further, since the initial gap between the electromagnetic actuator and the movable member can be set by ignoring the spring constant of the seal member, the transfer characteristic of the force generated by the electromagnetic actuator does not change significantly. This is advantageous in designing a control system that always obtains a good anti-vibration effect. In addition, the second member to which the outer peripheral portion of the seal member adheres
Because the fixing surface is formed into a curved shape. Outside the seal member
Even if the circumference is elastically deformed, the stress applied to the circumference is dispersed
However, the fixing force between the outer periphery of the seal member and the second member increases.
To do.
【００１９】また、請求項２記載の発明によると、請求
項１と同様の効果を得ることができるとともに、シール
部材の内周部が固着する可動部材の外周の固着面を曲面
形状に形成したことから、シール部材の内周部が弾性変
形してもその内周部に加わる応力が分散し、シール部材
の内周部及び可動部材間の固着力が増大する。 [0019] According to the second aspect of the invention, wherein
The same effect as item 1 can be obtained, and the seal
The fixed surface on the outer circumference of the movable member, to which the inner circumference of the member is fixed, is a curved surface.
Due to its shape, the inner circumference of the seal member is elastically deformed.
Even if formed, the stress applied to the inner peripheral part is dispersed, and the seal member
The fixing force between the inner peripheral portion and the movable member increases.
【００２０】また、請求項３記載の発明によると、シー
ル部材を、外周部に対して内周部が電磁アクチュエータ
側に位置するように、前記外周部から内周部に向かうに
従い下り傾斜を付けて形成したことから、傾斜面の角度
を適宜変更するだけでシール部材の変形開始位置を容易
に設定することができるので、防振支持装置の組み立て
性を良好とすることができる。 According to the invention of claim 3, the sea
The inner part of the electromagnetic member
So that it is located on the side, from the outer peripheral part toward the inner peripheral part
Therefore, since it was formed with a downward inclination, the angle of the inclined surface
The deformation start position of the seal member can be easily changed by simply changing
Assembling the anti-vibration support device can be set to
The property can be made good.
【００２１】また、請求項４記載の発明によると、第２
部材に設けた環状の突出部の全周にシール部材の外周部
を固着したので、第２部材に対するシール部材の外周部
の固着面積が増大し、シール部材の耐久性がさらに向上
する。 According to the invention of claim 4, the second aspect is provided.
The outer peripheral portion of the seal member is provided on the entire circumference of the annular protrusion provided on the member.
The outer peripheral portion of the seal member with respect to the second member is fixed because
The adhesion area of the seal is increased, and the durability of the seal member is further improved.
To do.
【００２２】また、請求項５記載の発明によると、可動
部材に、この外周から可動部材の変位方向に向けて突出
する環状のリブを形成し、このリブの全周に前記シール
部材の内周部を固着したので、可動部材に対するシール
部材の固着面積が増大し、シール部材の耐久性がさらに
向上する。According to the fifth aspect of the present invention, the movable member is formed with an annular rib projecting from the outer circumference in the displacement direction of the movable member, and the inner circumference of the seal member is provided around the entire circumference of the rib. Since the parts are fixed, the fixing area of the seal member with respect to the movable member is increased, and the durability of the seal member is further improved.
【００２３】また、請求項６記載の発明によると、シー
ル部材の内周部が固着する可動部材の外周の固着面を曲
面形状に形成したので、前記内周部が弾性変形してもそ
の内周部に加わる応力が分散し、シール部材の内周部及
び可動部材間の固着力がさらに増大する。Further, according to the invention of claim 6, since the fixing surface of the outer periphery of the movable member to which the inner peripheral portion of the seal member is fixed is formed in a curved shape, even if the inner peripheral portion is elastically deformed, The stress applied to the peripheral portion is dispersed, and the fixing force between the inner peripheral portion of the seal member and the movable member is further increased.
【００２４】また、請求項７記載の発明によると、可動
部材の外周に固定したシール部材を、前記可動部材の前
記流体室に対向する面の略全域を覆うように延長して設
けたので、可動部材に対するシール部材の固着面積がさ
らに増大する。また、電磁アクチュエータが発熱する
と、この熱が可動部材を介して流体室内の流体に伝わっ
て流体が沸騰するおそれがあるが、可動部材の前記流体
室に対向する面の略全域を覆うように前記シール部材を
延長して設けたことから、その延長部分が熱伝達を防止
する熱遮断部材として機能し、流体の沸騰を防止するこ
とができる。Further, according to the invention of claim 7, the seal member fixed to the outer periphery of the movable member is provided so as to extend so as to cover substantially the entire area of the surface of the movable member facing the fluid chamber. The area where the seal member is fixed to the movable member is further increased. Further, when the electromagnetic actuator generates heat, this heat may be transferred to the fluid in the fluid chamber via the movable member and cause the fluid to boil. However, it is necessary to cover substantially the entire surface of the movable member facing the fluid chamber. Since the seal member is provided as an extension, the extended portion functions as a heat blocking member that prevents heat transfer, and thus it is possible to prevent boiling of the fluid.
【００２５】また、請求項８記載の発明によると、可動
部材が変位するとシール部材は凹み部を設けた位置の弾
性変形量が他の領域と比較して大きくなり、この凹み部
から内側の領域が可動部材の上部とともに流体の容積を
変化させる方向に移動する。したがって、流体室を向く
可動部材の上部面積と、凹み部より内側のシール部材の
面積とを合わせた大きな有効受圧面積となって流体室の
容積変化を大きくすることができるので、本発明の防振
支持装置は、能動的な大きな支持力を発生することがで
きる。また、繰り返し弾性変形する凹み部は、第２部材
及び可動部材の外周に固定されるシール部材の外周部及
び内周部から離間しており、それら外周部及び内周部に
大きな応力が加わらないので、シール部材の固定力を長
期に渡って保持することができる。Further, according to the invention described in claim 8, when the movable member is displaced, the elastic deformation amount of the seal member at the position where the recessed portion is provided becomes larger than that of the other region, and the region inside the recessed portion is inside. Moves along with the upper part of the movable member in the direction of changing the volume of the fluid. Therefore, a large effective pressure receiving area, which is the sum of the upper area of the movable member facing the fluid chamber and the area of the seal member inside the recess, becomes a large volume change of the fluid chamber. The vibration supporting device can generate a large active supporting force. Further, the recessed portion that is repeatedly elastically deformed is separated from the outer peripheral portion and the inner peripheral portion of the seal member fixed to the outer periphery of the second member and the movable member, so that large stress is not applied to the outer peripheral portion and the inner peripheral portion. Therefore, the fixing force of the seal member can be maintained for a long period of time.
【００２６】さらに、請求項９記載の発明によると、可
動部材が変位するとシール部材は肉厚が薄い外周側の弾
性変形量が内周側の領域と比較して大きくなり、この位
置から内周側の領域が可動部材の上部とともに流体の容
積を変化させる方向に移動する。したがって、流体室を
向く可動部材の上部面積と、内周側シール部材の面積と
を合わせた大きな有効受圧面積となって流体室の容積変
化を大きくすることができるので、本発明の防振支持装
置も、能動的な大きな支持力を発生することができる。Further, according to the invention described in claim 9, when the movable member is displaced, the elastic deformation amount of the seal member on the outer peripheral side having a small wall thickness is larger than that on the inner peripheral side, and from this position, the inner peripheral surface is changed. The region on the side moves together with the upper part of the movable member in a direction that changes the volume of the fluid. Therefore, the upper area of the movable member facing the fluid chamber and the area of the inner peripheral side seal member are combined to provide a large effective pressure receiving area, and the volume change of the fluid chamber can be increased. The device can also generate large active support forces.
【００２７】[0027]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は本発明に係る防振支持装置
の一実施形態である能動型振動制御装置を適用した車両
の概略側面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view of a vehicle to which an active vibration control device, which is an embodiment of a vibration isolation support device according to the present invention, is applied.
【００２８】先ず、構成を説明すると、エンジン（振動
体）１７が駆動信号に応じた能動的な支持力を発生可能
な防振支持装置（能動型エンジンマウント）２０を介し
て、サスペンションメンバ等から構成される車体（支持
体）１８に支持されている。なお、実際には、エンジン
１７及び車体１８間には、防振支持装置２０の他にエン
ジン１７及び車体１８間の相対変位に応じた受動的な支
持力を発生する複数のエンジンマウントも介在してい
る。受動的なエンジンマウントとしては、例えばゴム状
の弾性体で荷重を支持する通常のエンジンマウントや、
ゴム状の弾性体内部に減衰力発生可能に流体を封入して
なる公知の流体封入式のマウントインシュレータ等が適
用できる。First, the structure will be described. From the suspension member, etc., through an anti-vibration support device (active engine mount) 20 by which the engine (vibrating body) 17 can generate an active supporting force according to a drive signal. It is supported by the constituted vehicle body (support) 18. In addition, between the engine 17 and the vehicle body 18, actually, in addition to the anti-vibration support device 20, a plurality of engine mounts that generate a passive supporting force according to the relative displacement between the engine 17 and the vehicle body 18 are also interposed. ing. As a passive engine mount, for example, a normal engine mount that supports the load with a rubber-like elastic body,
A known fluid-filled mount insulator or the like in which a fluid is enclosed in a rubber-like elastic body so that a damping force can be generated can be applied.
【００２９】次に、図２に示すものは、第１実施形態と
なる防振支持装置２０の具体的な構成を示すものであ
る、装置ケース４３に外筒３４、オリフィス構成部材３
６、内筒３７、支持弾性体３２等のマウント部品を内蔵
し、これらマウント部品の下部に、流体室８４の隔壁の
一部を形成しながら弾性支持された可動部材７８を流体
室８４の容積が変化する方向に変位させる電磁アクチュ
エータ５２と、車体メンバ２８の振動状況を検出する荷
重センサ６４とを内蔵している。Next, FIG. 2 shows a specific structure of the vibration-damping support device 20 according to the first embodiment. The device case 43 has an outer cylinder 34 and an orifice component member 3.
6, the inner cylinder 37, mounting components such as the support elastic body 32 are built in, and a movable member 78 elastically supported while forming a part of the partition wall of the fluid chamber 84 is formed in the lower portion of these mounting components. The electromagnetic actuator 52 that displaces in the direction in which the load changes and the load sensor 64 that detects the vibration state of the vehicle body member 28 are incorporated.
【００３０】すなわち、本実施形態の防振支持装置２０
は、連結ボルト３０ａを上方に向けて固定したエンジン
側連結部材３０を備えている。このエンジン側連結部材
３０の下部には、断面逆台形状の中空筒体３０ｂが固定
されている。That is, the anti-vibration support device 20 of this embodiment
Includes an engine-side connecting member 30 having a connecting bolt 30a fixed upward. A hollow cylindrical body 30b having an inverted trapezoidal cross section is fixed to a lower portion of the engine side connecting member 30.
【００３１】前記エンジン側連結部材３０の下面側に
は、エンジン側連結部材３０の下部側及び中空筒体３０
ｂの周囲を覆うように、支持弾性体３２が加硫接着によ
り固定されている。この支持弾性体３２は、中央部から
外周部に向けて緩やかに下方に傾斜する厚肉の略円筒状
の弾性体であって、内面に断面山形状の空洞部３２ａが
形成されている。そして、薄肉形状とした支持弾性体３
２の下端部は、軸心（以下、マウント軸と称する）Ｐ1
が中空筒体３０ｂと同軸に振動体支持方向（この場合
は、上下方向）を向くオリフィス構成部材３６の内周面
に加硫接着により結合している。On the lower surface side of the engine side connecting member 30, the lower side of the engine side connecting member 30 and the hollow cylindrical body 30.
The support elastic body 32 is fixed by vulcanization adhesion so as to cover the periphery of b. The support elastic body 32 is a thick-walled, substantially cylindrical elastic body that gently inclines downward from the central portion toward the outer peripheral portion, and has a hollow portion 32a having a mountain-shaped cross section on its inner surface. The supporting elastic body 3 having a thin shape
The lower end of 2 has a shaft center (hereinafter referred to as a mount shaft) P 1
Is coupled by vulcanization adhesion to the inner peripheral surface of the orifice constituting member 36 that is coaxial with the hollow cylindrical body 30b and faces the vibrating body supporting direction (in this case, the vertical direction).
【００３２】オリフィス構成部材３６は、同一外周径と
した上端筒部３６ａ及び下端筒部３６ｂの間に小径筒部
３６ｃを連続して形成した部材であり、外周に環状凹部
を設けている。また、図示しないが、小径筒部３６ｃに
は開口部が形成されており、この開口部を介してオリフ
ィス構成部材３６の内側及び外側が連通している。The orifice-constituting member 36 is a member in which a small-diameter tubular portion 36c is continuously formed between an upper end tubular portion 36a and a lower end tubular portion 36b having the same outer diameter, and an annular recess is provided on the outer periphery. Although not shown, an opening is formed in the small-diameter cylindrical portion 36c, and the inside and outside of the orifice component member 36 communicate with each other through this opening.
【００３３】オリフィス構成部材３６の外側には外筒３
４が嵌合しており、この外筒３４は内周径をオリフィス
構成部材３６の上端筒部３６ａ及び下端筒部３６ｂの外
周径と同一寸法とし、軸方向の長さをオリフィス構成部
材３６と同一寸法に設定した円筒部材である。また、こ
の外筒３４には開口部３４ａが形成されており、この開
口部３４ａの開口縁部にゴム製の薄膜弾性体からなるダ
イアフラム４２の外周が結合して開口部３４ａを閉塞し
つつ、外筒３４の内側に向けて膨出している。The outer cylinder 3 is provided outside the orifice component 36.
4, the outer cylinder 34 has an inner diameter equal to the outer diameters of the upper end cylinder portion 36a and the lower end cylinder portion 36b of the orifice component 36, and the axial length of the outer cylinder 34 is the orifice component 36. It is a cylindrical member set to the same size. Further, an opening 34a is formed in the outer cylinder 34, and the outer periphery of the diaphragm 42 made of a rubber thin film elastic body is coupled to the opening edge of the opening 34a to close the opening 34a, It bulges toward the inside of the outer cylinder 34.
【００３４】そして、上記構成の外筒３４を、環状凹部
を囲むようにオリフィス構成部材３６に外嵌すると、外
筒３４及びオリフィス構成部材３６間の周方向に環状空
間が画成され、その環状空間にダイアフラム４２が膨出
した状態で配設される。Then, when the outer cylinder 34 having the above structure is fitted onto the orifice component 36 so as to surround the annular recess, an annular space is defined in the circumferential direction between the outer cylinder 34 and the orifice component 36, and the annular space is formed. The diaphragm 42 is arranged in a bulged state in the space.
【００３５】オリフィス構成部材３６の内側に嵌合して
いる内筒３７は、オリフィス構成部材３６の小径筒部３
６ｃより小径に形成した最小径筒部３７ａを備え、その
最小径筒部３７ａの上下端部に径方向外方に向けて環状
部３７ｂ、３７ｃが形成されている。上部側の環状部３
７ｂは、外周径がオリフィス構成部材３６の小径筒部３
６ｃより僅かに小径に形成され、下部側の環状部３６ｃ
は、オリフィス構成部材３６の下端筒部３６ｂより小径
に形成されているとともに、最小径筒部３７ａに第２開
口部３７ｄが形成されている。The inner cylinder 37 fitted inside the orifice constituting member 36 is the small-diameter cylindrical portion 3 of the orifice constituting member 36.
The minimum diameter cylindrical portion 37a is formed to have a diameter smaller than 6c, and the annular portions 37b and 37c are formed at the upper and lower ends of the minimum diameter cylindrical portion 37a so as to extend radially outward. Ring part 3 on the upper side
7b is a small-diameter cylindrical portion 3 having an outer peripheral diameter of the orifice-constituting member 36.
6c, slightly smaller in diameter than the lower annular portion 36c
Has a diameter smaller than that of the lower end tubular portion 36b of the orifice forming member 36, and has a second opening 37d formed in the minimum diameter tubular portion 37a.
【００３６】装置ケース４３は、その上端部に上端筒部
３６ａの外周径より小径の円形開口部を有する上端かし
め部４３ａが形成されているとともに、この上端かしめ
部４３ａと連続するケース本体の形状を、内周径が外筒
３４の外周径と同一寸法で下端開口部まで連続する円筒
形状（下端開口部を図２の破線で示した形状）とした部
材である。The apparatus case 43 has an upper end crimped portion 43a having a circular opening having a diameter smaller than the outer diameter of the upper end tubular portion 36a, and the shape of the case body continuous with the upper end crimped portion 43a. Is a member having a cylindrical shape in which the inner peripheral diameter is the same as the outer peripheral diameter of the outer cylinder 34 and continues to the lower end opening (the lower end opening is shown by the broken line in FIG. 2).
【００３７】そして、支持弾性体３２、オリフィス構成
部材３６、内筒３７及びダイアフラム４２を一体化した
外筒３４を装置ケース４３の下端開口部から内部に嵌め
込んでいき、上端かしめ部４３ａの下面に外筒３４及び
オリフィス構成部材３６の上端部を当接させることによ
り、それらが装置ケース４３内の上部に配設される。Then, the outer cylinder 34 in which the supporting elastic body 32, the orifice component 36, the inner cylinder 37 and the diaphragm 42 are integrated is fitted into the inside of the lower end opening of the apparatus case 43, and the lower surface of the upper end caulking portion 43a. By bringing the outer cylinder 34 and the upper end of the orifice forming member 36 into contact with each other, they are arranged in the upper portion of the device case 43.
【００３８】ここで、装置ケース４３の内周面とダイヤ
フラム４２とで囲まれた部分に空気室４２ｃが画成され
るが、この空気室４２ｃを臨む位置に空気孔４３ａが形
成されており、この空気孔４３ａを介して空気室４２ｃ
と大気が連通している。Here, an air chamber 42c is defined in a portion surrounded by the inner peripheral surface of the device case 43 and the diaphragm 42, and an air hole 43a is formed at a position facing the air chamber 42c. Air chamber 42c through this air hole 43a
And the atmosphere are in communication.
【００３９】装置ケース４３内の下部には円筒状のスペ
ーサ７０が嵌め込まれており、このスペーサ７０内の上
部に可動部材７８が配置されているとともに、スペーサ
７０内の下部に電磁アクチュエータ５２が配置されてい
る。すなわち、スペーサ７０は、上部筒体７０ａ及び下
部筒体７０ｂとの間にゴム製の薄膜弾性体からなるダイ
アフラム７０ｃを加硫接着した部材である。A cylindrical spacer 70 is fitted in the lower part of the device case 43, a movable member 78 is arranged in the upper part of the spacer 70, and an electromagnetic actuator 52 is arranged in the lower part of the spacer 70. Has been done. That is, the spacer 70 is a member obtained by vulcanizing and adhering the diaphragm 70c made of a thin elastic film made of rubber between the upper cylinder 70a and the lower cylinder 70b.
【００４０】電磁アクチュエータ５２は、外観円筒形の
ヨーク５２ａと、ヨーク５２ａの上端面側に埋設した円
環状の励磁コイル５２ｂと、ヨーク５２ａの上面中央部
に磁極を上下方向に向けて固定した永久磁石５２ｃとで
構成されており、前記ヨーク５２ａは、上下方向に２分
割した上部ヨーク部材５３ａ及び下部ヨーク部材５３ｂ
とで構成されており、上部ヨーク部材５３ａの下側外周
及び下部ヨーク部材５３ｂの上側外周を削り取って、周
方向に連続する凹部５２ｄが形成されている。そして、
スペーサ７０のダイアフラム７０ｃは、前記凹部５２ｄ
にむけて膨出しており、装置ケース４３の内周面とダイ
ヤフラム７０ｃとで囲まれた部分に空気室７０ｄが画成
されるが、この空気室７０ｄを臨む位置に空気孔４３ｂ
が形成されており、この空気孔４３ｂを介して空気室７
０ｄと大気が連通している。なお、ヨーク５２ａの下面
と、車体側連結ボルト６０を備えた蓋部材６２との間に
は、振動低減制御に必要な残留振動を検出るために、荷
重センサ６４が介装されている。なお、荷重センサ６４
としては、圧電素子，磁歪素子，歪ゲージ等が適用可能
であり、このセンサの検出結果は、図１に示すように、
残留振動信号ｅとしてコントローラ２５に供給されるよ
うになっている。The electromagnetic actuator 52 has a cylindrical outer yoke 52a, an annular exciting coil 52b buried in the upper end surface of the yoke 52a, and a permanent magnet having a magnetic pole vertically fixed to the center of the upper surface of the yoke 52a. The yoke 52a is composed of a magnet 52c, and the yoke 52a is divided into two parts in the vertical direction. The upper yoke member 53a and the lower yoke member 53b.
The lower outer periphery of the upper yoke member 53a and the upper outer periphery of the lower yoke member 53b are scraped off to form a recess 52d that is continuous in the circumferential direction. And
The diaphragm 70c of the spacer 70 has the recess 52d.
An air chamber 70d is formed in a portion surrounded by the diaphragm 70c and the inner peripheral surface of the device case 43. The air hole 43b is located at a position facing the air chamber 70d.
Is formed, and the air chamber 7 is formed through this air hole 43b.
0d communicates with the atmosphere. A load sensor 64 is interposed between the lower surface of the yoke 52a and the lid member 62 provided with the vehicle body side connecting bolt 60 in order to detect residual vibration required for vibration reduction control. The load sensor 64
As the element, a piezoelectric element, a magnetostrictive element, a strain gauge, or the like can be applied, and the detection result of this sensor is as shown in FIG.
The residual vibration signal e is supplied to the controller 25.
【００４１】一方、スペーサ７０内の上部には、内側に
向けて突出している内周部を曲面形状に形成したシール
部材固定用のシールリング７２と、後述する板ばね８２
の外周部を下側から自由端支持する支持リング７４と、
電磁アクチュエータ５２のヨーク５２ａ及び可動部材７
８間のギャップを設定するギャップ保持リング７６と
が、振動体支持方向Ｐ1 に同軸に配置されているととも
に、これらリングの内側に上下方向に変位可能となるよ
うに可動部材７８が配置されている。On the other hand, in the upper part of the spacer 70, a seal ring 72 for fixing a seal member having an inner peripheral portion projecting inwardly formed in a curved shape and a leaf spring 82 described later are provided.
A support ring 74 for supporting the outer periphery of the free end from below,
The yoke 52a of the electromagnetic actuator 52 and the movable member 7
The gap holding ring 76 for setting the gap between the eight is arranged coaxially in the vibrating body supporting direction P 1 , and the movable member 78 is arranged inside these rings so as to be vertically displaceable. There is.
【００４２】可動部材７８は、外観円盤状の隔壁形成部
材７８Ａと、この隔壁形成部材７８Ａより大径円盤状に
形成した磁路形成部材７８Ｂとで構成した部材であっ
て、電磁アクチュエータ５２に対して遠い方に位置する
隔壁形成部材７８Ａの軸心にボルト孔８０ａを形成し、
電磁アクチュエータ５２に近い磁路形成部材７８Ｂを貫
通した可動部材用ボルト８０がボルト孔８０ａに螺合す
ることにより、隔壁形成部材７８Ａ及び磁路形成部材７
８Ｂを一体に連結した構造となっている。The movable member 78 is a member composed of a partition forming member 78A having an outer appearance disk shape and a magnetic path forming member 78B formed in a disk shape having a larger diameter than the partition forming member 78A. And a bolt hole 80a is formed in the shaft center of the partition wall forming member 78A located at a far side.
The movable member bolt 80 penetrating the magnetic path forming member 78B close to the electromagnetic actuator 52 is screwed into the bolt hole 80a, whereby the partition wall forming member 78A and the magnetic path forming member 7 are formed.
8B is integrally connected.
【００４３】隔壁形成部材７８Ａ及び磁路形成部材７８
Ｂ間には、リング状に連続したくびれ部７９が画成され
ているが、このくびれ部７９に可動部材７８を弾性支持
するための板ばね８２が収容されている。つまり、板ば
ね８２は、中央部に孔部を形成した円盤形状の部材であ
り、この板ばね８２の内周部を隔壁形成部材７８Ａの裏
面中央部の下側から自由端支持し、板ばね８２の外周部
を支持リング７４のばね支持部７４ａが下側から自由端
支持しており、これにより可動部材７８が装置ケース４
３に板ばね８２を介して弾性支持されている。The partition wall forming member 78A and the magnetic path forming member 78
A ring-shaped continuous constricted portion 79 is defined between B, and a leaf spring 82 for elastically supporting the movable member 78 is accommodated in the constricted portion 79. That is, the leaf spring 82 is a disk-shaped member having a hole formed in the center thereof, and the inner peripheral portion of the leaf spring 82 is supported by the free end of the bottom of the back surface center portion of the partition wall forming member 78A. A spring support portion 74a of a support ring 74 supports the outer peripheral portion of the free end 82 from the lower end so that the movable member 78 can be supported by the device case 4 as shown in FIG.
3 is elastically supported by a leaf spring 82.
【００４４】前記隔壁形成部材７８Ａは、流体室８４に
面している隔壁部８０ｃの肉厚を薄くし、隔壁部８０ｃ
の外周から上方に突出する環状のリブ８０ｂを形成した
部材であり、図３にも示すように、リブ８０ｂの外周及
び頂部は曲面形状に形成されている。そして、隔壁形成
部材７８の上面と、支持弾性体３２の下面と、内筒３７
の内周面とで流体室８４が形成され、この流体室８４内
に流体が封入される。In the partition wall forming member 78A, the wall thickness of the partition wall portion 80c facing the fluid chamber 84 is reduced so that the partition wall portion 80c is formed.
Is a member in which an annular rib 80b protruding upward from the outer periphery of the rib 80b is formed. As shown in FIG. 3, the outer periphery and the top of the rib 80b are formed in a curved shape. Then, the upper surface of the partition wall forming member 78, the lower surface of the support elastic body 32, and the inner cylinder 37.
A fluid chamber 84 is formed with the inner peripheral surface of the, and the fluid is enclosed in the fluid chamber 84.
【００４５】ここで、流体室８４から板ばね８２を収容
しているくびれ部７９側への流体の漏洩を防止するた
め、隔壁形成部材７８Ａの外周とシールリング７２の内
周との間には、ゴム状弾性体からなるリング形状のシー
ル部材８６が固定されており、このシール部材８６の弾
性変形によって、シールリング７２や装置ケース４３に
対する可動部材７８の上下方向への相対変位を許容して
いる。Here, in order to prevent the fluid from leaking from the fluid chamber 84 to the side of the constricted portion 79 accommodating the leaf spring 82, between the outer circumference of the partition wall forming member 78A and the inner circumference of the seal ring 72. A ring-shaped seal member 86 made of a rubber-like elastic body is fixed, and elastic deformation of the seal member 86 allows relative displacement of the movable member 78 with respect to the seal ring 72 and the device case 43 in the vertical direction. There is.
【００４６】シール部材８６は、図３に示すように、シ
ールリング７２に固定されている外周部８６ａからリブ
８０ｂに固定されている内周部８６ｂまで略同一の肉厚
のリング形状に形成されている。As shown in FIG. 3, the seal member 86 is formed in a ring shape having substantially the same thickness from the outer peripheral portion 86a fixed to the seal ring 72 to the inner peripheral portion 86b fixed to the rib 80b. ing.
【００４７】また、このシール部材８６は、外周部８６
ａに対して内周部８６ｂが下側（電磁アクチュエータ５
２側）に位置するように、外周部８６ａから内周部８６
ｂに向かうに従い下り傾斜面を付けて形成されている。Further, the seal member 86 has an outer peripheral portion 86.
The inner peripheral portion 86b is on the lower side with respect to a (the electromagnetic actuator 5
2 side), the outer peripheral portion 86a to the inner peripheral portion 86
It is formed with a downward sloping surface toward b.
【００４８】そして、シール部材８６の外周部８６ａ
は、シールリング７２の曲面形状に形成した内周面全域
を覆って固定されており、内周部８６ｂは、曲面形状に
形成したリブ８０ｂの外周面及び頂部と内周面を覆って
固定されている。シール部材８６の加硫接着によって一
体的になった隔壁形成部材７８Ａとシール部材８６とシ
ールリング７２とに、隔壁形成部材７８Ａの下部から板
ばね８２及び支持リング７４を組み込んだ後、磁路形成
部材７８Ｂをボルト８０で隔壁形成部材７８Ａに設けら
れたボルト孔８０ａに螺合することにより、可動部材７
８とシール部材８６とシールリング７２と板ばね８２と
支持リング７４とを一体的にアッセンブリーとして設け
ている。そして、電磁アクチュエータ５２上にギャップ
保持リング７６を介して組み込むことにより可動部材７
８が電磁アクチュエータ５２側に引きつけられ、隔壁形
成部材７８Ａの下部が板ばね８２の内周部を電磁アクチ
ュエータ５２側に押して板ばね８２が撓み、その反力と
して電磁アクチュエータ５２と反対方向に弾性力を発生
させる。そして、この弾性力と永久磁石５２との釣り合
う位置でシール部材８６の弾性変形がゼロとなるように
設定している。また、必要に応じてギャップ保持リング
７６を交換して初期のギャップＨの大きさを所望の値に
なるように調整するようにしている。The outer peripheral portion 86a of the seal member 86
Is fixed so as to cover the entire inner peripheral surface formed in the curved shape of the seal ring 72, and the inner peripheral portion 86b is fixed so as to cover the outer peripheral surface and the top and inner peripheral surface of the rib 80b formed in the curved shape. ing. The partition spring forming member 78A, the seal member 86, and the seal ring 72, which are integrated by vulcanization adhesion of the seal member 86, are assembled with the leaf spring 82 and the support ring 74 from the lower portion of the partition wall forming member 78A, and then the magnetic path is formed. The member 78B is screwed with a bolt 80 into a bolt hole 80a provided in the partition wall forming member 78A, whereby the movable member 7
8, the seal member 86, the seal ring 72, the leaf spring 82, and the support ring 74 are integrally provided as an assembly. Then, the movable member 7 is assembled on the electromagnetic actuator 52 via the gap retaining ring 76.
8 is attracted to the electromagnetic actuator 52 side, and the lower part of the partition wall forming member 78A pushes the inner peripheral portion of the leaf spring 82 toward the electromagnetic actuator 52 side to bend the leaf spring 82, and as a reaction force thereof, an elastic force is exerted in the direction opposite to the electromagnetic actuator 52. Generate. The elastic deformation of the seal member 86 is set to zero at the position where this elastic force balances with the permanent magnet 52. Further, the gap retaining ring 76 is exchanged as needed to adjust the initial size of the gap H to a desired value.
【００４９】また、シール部材８６の内周部８６ｂに
は、リブ８０ｂの隔壁部８０ｃの上面を覆っている延長
シール部８６ｃが連続して形成されている。そして、こ
のシール部材８６の外周部８６ａに寄った位置の上面に
は、円環状の凹み部８６ｄが形成されている。Further, an extension seal portion 86c covering the upper surface of the partition wall portion 80c of the rib 80b is continuously formed on the inner peripheral portion 86b of the seal member 86. An annular recess 86d is formed on the upper surface of the seal member 86 near the outer periphery 86a.
【００５０】さらに、電磁アクチュエータ５２の電磁力
が発生していないときには、可動部材７８の電磁アクチ
ュエータ５２側を向く下向きの力Ｆａ（永久磁石５２ｃ
が磁路形成部材７８Ｂを引きつける力、流体室８４内の
流体の圧力及び質量、可動部材７８の重量を合わせた
力）と、板ばね８２の流体室８４側を向く上向きの支持
反力Ｆｂとの両者が釣り合う位置（Ｆａ＝Ｆｂとなる位
置）で可動部材７８とヨーク５２ａとの間に初期のギャ
ップＨを設定している。Further, when the electromagnetic force of the electromagnetic actuator 52 is not generated, the downward force Fa (permanent magnet 52c) of the movable member 78 which faces the electromagnetic actuator 52 side.
Is a force that attracts the magnetic path forming member 78B, a pressure and a mass of the fluid in the fluid chamber 84, and a weight of the movable member 78), and an upward supporting reaction force Fb of the leaf spring 82 facing the fluid chamber 84 side. An initial gap H is set between the movable member 78 and the yoke 52a at a position where both of them are balanced (position where Fa = Fb).
【００５１】一方、電磁アクチュエータ５２の励磁コイ
ル５２ｂは、コントローラ２５から供給される電流であ
る駆動信号ｙに応じて所定の電磁力を発生するようにな
っている。コントローラ２５は、マイクロコンピュー
タ，必要なインタフェース回路，Ａ／Ｄ変換器，Ｄ／Ａ
変換器，アンプ、ＲＯＭ，ＲＡＭ等の記憶媒体等を含ん
で構成され、エンジン１７で発生する振動を低減できる
能動的な支持力が防振支持装置２０に発生するように、
防振支持装置２０に対する駆動信号ｙを生成し出力する
ようになっている。On the other hand, the exciting coil 52b of the electromagnetic actuator 52 is adapted to generate a predetermined electromagnetic force according to the drive signal y which is a current supplied from the controller 25. The controller 25 includes a microcomputer, necessary interface circuits, A / D converter, D / A
The vibration-proof support device 20 is configured to include a converter, an amplifier, a storage medium such as a ROM, a RAM, and the like, and an active supporting force that can reduce the vibration generated in the engine 17 is generated in the anti-vibration supporting device 20.
The drive signal y for the anti-vibration support device 20 is generated and output.
【００５２】ここで、エンジン１７で発生するアイドル
振動やこもり音振動は、例えばレシプロ４気筒エンジン
の場合、エンジン回転２次成分のエンジン振動が車体１
８に伝達されることが主な原因であるから、そのエンジ
ン回転２次成分に同期して駆動信号ｙを生成し出力すれ
ば、車体側振動の低減が可能となる。そこで、本実施の
形態では、エンジン１７のクランク軸の回転に同期した
（例えば、レシプロ４気筒エンジンの場合には、クラン
ク軸が１８０度回転する度に一つの）インパルス信号を
生成し基準信号ｘとして出力するパルス信号生成器１９
を設けていて、その基準信号ｘが、コントローラ２５に
供給されるようになっている。Here, for example, in the case of a reciprocating four-cylinder engine, the idle vibration and the muffled sound vibration generated by the engine 17 are the engine vibration of the engine rotation secondary component.
The main cause is that the vibration is transmitted to the vehicle 8. Therefore, if the drive signal y is generated and output in synchronization with the engine rotation secondary component, the vibration on the vehicle body side can be reduced. Therefore, in the present embodiment, an impulse signal is generated in synchronization with the rotation of the crankshaft of the engine 17 (for example, in the case of a reciprocating 4-cylinder engine, one impulse signal is generated each time the crankshaft rotates 180 degrees), and the reference signal x Pulse signal generator 19 for outputting as
Is provided, and the reference signal x is supplied to the controller 25.
【００５３】そして、コントローラ２５は、供給される
残留振動信号ｅ及び基準信号ｘに基づき、逐次更新型の
適応アルゴリズムの一つである同期式Ｆｉｌｔｅｒｅｄ
−ＸＬＭＳアルゴリズムを実行することにより、防振支
持装置２０に対する駆動信号ｙを演算し、その駆動信号
ｙを防振支持装置２０に出力するようになっている。Then, the controller 25, based on the supplied residual vibration signal e and the reference signal x, is a synchronous filtered one which is one of the adaptive algorithms of the successive update type.
By executing the -XLMS algorithm, the drive signal y for the image stabilization support device 20 is calculated, and the drive signal y is output to the image stabilization support device 20.
【００５４】具体的には、コントローラ２５は、フィル
タ係数Ｗi （ｉ＝０，１，２，…，Ｉ−１：Ｉはタップ
数）可変の適応ディジタルフィルタＷを有していて、最
新の基準信号ｘが入力された時点から所定のサンプリン
グ・クロックの間隔で、その適応ディジタルフィルタＷ
のフィルタ係数Ｗi を順番に駆動信号ｙとして出力する
一方、基準信号ｘ及び残留振動信号ｅに基づいて適応デ
ィジタルフィルタＷのフィルタ係数Ｗi を適宜更新する
処理を実行するようになっている。Specifically, the controller 25 has an adaptive digital filter W with a variable filter coefficient W i (i = 0, 1, 2, ..., I-1: I is the number of taps), and the latest The adaptive digital filter W at a predetermined sampling clock interval from the time when the reference signal x is input.
Of one of outputting a filter coefficient W i in the order as the drive signal y, it is adapted to execute a process of appropriately updating the filter coefficient W i of the adaptive digital filter W based on the reference signal x and the residual vibration signal e.
【００５５】適応ディジタルフィルタＷの更新式は、Ｆ
ｉｌｔｅｒｅｄ−Ｘ ＬＭＳアルゴリズムに従った下記
の（１）式のようになる。
Ｗi （ｎ＋１）＝Ｗi （ｎ）−μＲT ｅ（ｎ） ……（１）
ここで、（ｎ），（ｎ＋１）が付く項はサンプリング時
刻ｎ，ｎ＋１における値であることを表し、μは収束係
数である。また、更新用基準信号ＲT は、理論的には、
基準信号ｘを、防振支持装置１の電磁アクチュエータ５
２及び荷重センサ６４間の伝達関数Ｃを有限インパルス
応答型フィルタでモデル化した伝達関数フィルタＣ＾で
フィルタ処理した値であるが、基準信号ｘの大きさは
“１”であるから、伝達関数フィルタＣ＾のインパルス
応答を基準信号ｘに同期して次々と生成した場合のそれ
らインパルス応答波形のサンプリング時刻ｎにおける和
に一致する。また、理論的には、基準信号ｘを適応ディ
ジタルフィルタＷでフィルタ処理して駆動信号ｙを生成
するのであるが、基準信号ｘの大きさが“１”であるた
め、フィルタ係数Ｗi を順番に駆動信号ｙとして出力し
ても、フィルタ処理の結果を駆動信号ｙとしたのと同じ
結果になる。The updating formula of the adaptive digital filter W is F
The following equation (1) follows the iltered-X LMS algorithm. W i (n + 1) = W i (n) −μR T e (n) (1) Here, the terms with (n) and (n + 1) represent values at sampling times n and n + 1, μ is a convergence coefficient. Further, theoretically, the update reference signal R T is
The reference signal x is transferred to the electromagnetic actuator 5 of the anti-vibration support device 1.
2 is a value obtained by filtering the transfer function C between the load sensor 64 and the load sensor 64 with the transfer function filter C ^ modeled by the finite impulse response type filter. However, since the magnitude of the reference signal x is "1", the transfer function This coincides with the sum at the sampling time n of the impulse response waveforms when the impulse responses of the filter C ^ are generated one after another in synchronization with the reference signal x. Further, theoretically, the reference signal x is filtered by the adaptive digital filter W to generate the drive signal y. However, since the magnitude of the reference signal x is "1", the filter coefficients W i are sequentially set. Even when it is output as the drive signal y, the same result is obtained as when the result of the filtering process is set as the drive signal y.
【００５６】次に、本実施の形態の動作を説明する。即
ち、エンジン１７でアイドル振動やこもり音振動が発生
している状況では、コントローラ２５から防振支持装置
２０の電磁アクチュエータ５２に対しては、基準信号ｘ
が入力された時点から、サンプリング・クロックの間隔
で、適応ディジタルフィルタＷのフィルタ係数Ｗi が順
番に駆動信号ｙとして供給される。Next, the operation of this embodiment will be described. That is, when idle vibration or muffled sound vibration is generated in the engine 17, the controller 25 sends a reference signal x to the electromagnetic actuator 52 of the anti-vibration support device 20.
From the time when is input, the filter coefficient W i of the adaptive digital filter W is sequentially supplied as the drive signal y at the sampling clock interval.
【００５７】この結果、励磁コイル５２ｂに駆動信号ｙ
に応じた磁力が発生するが、磁路形成部材７８Ｂには、
既に永久磁石５２ｃによる一定の磁力が付与されている
から、その励磁コイル５２ｂによる磁力は永久磁石５２
ｃの磁力を強める又は弱めるように作用すると考えるこ
とができる。このように、永久磁石５２ｃの磁力が強ま
ったり、弱まったりすると可動部材７８が正逆両方向に
変位し、可動部材７８が変位すれば、流体室８４の隔壁
の一部を形成する隔壁形成部材７８Ａも変位し、これに
より流体室８４の容積が変化し、その容積変化によって
支持弾性体３２の拡張ばねが変形するから、この防振支
持装置２０に正逆両方向の能動的な支持力が発生するの
である。As a result, the drive signal y is applied to the exciting coil 52b.
Magnetic force is generated according to the magnetic field forming member 78B,
Since a constant magnetic force is already applied by the permanent magnet 52c, the magnetic force by the exciting coil 52b is already applied.
It can be considered to act to strengthen or weaken the magnetic force of c. As described above, when the magnetic force of the permanent magnet 52c is strengthened or weakened, the movable member 78 is displaced in both forward and reverse directions, and when the movable member 78 is displaced, the partition wall forming member 78A forming a part of the partition wall of the fluid chamber 84 is formed. Is also displaced, whereby the volume of the fluid chamber 84 changes, and the expansion spring of the support elastic body 32 deforms due to the change in volume, so that an active support force in both the forward and reverse directions is generated in the anti-vibration support device 20. Of.
【００５８】駆動信号ｙとなる適応ディジタルフィルタ
Ｗの各フィルタ係数Ｗi は、同期式Ｆｉｌｔｅｒｅｄ−
Ｘ ＬＭＳアルゴリズムに従った上記（１）式によって
逐次更新されるため、ある程度の時間が経過して適応デ
ィジタルフィルタＷの各フィルタ係数Ｗi が最適値に収
束した後は、駆動信号ｙが防振支持装置１に供給される
ことによって、エンジン１７から防振支持装置２０を介
して車体１８側に伝達されるアイドル振動やこもり音振
動が低減されるようになるのである。Each filter coefficient W i of the adaptive digital filter W which becomes the drive signal y is a synchronous Filtered-
Since it is sequentially updated by the above formula (1) according to the X LMS algorithm, after a certain amount of time has passed and each filter coefficient W i of the adaptive digital filter W has converged to an optimum value, the drive signal y is shaken. By being supplied to the support device 1, the idle vibration and the muffled sound vibration transmitted from the engine 17 to the vehicle body 18 side via the anti-vibration support device 20 are reduced.
【００５９】次に、本実施形態のシール部材８６の作用
効果について説明する。励磁コイル５２ｂに駆動信号ｙ
が供給されていない状態では、可動部材７８は、可動部
材７８の電磁アクチュエータ５２側を向く下向きの力Ｆ
ａと、板ばね８２の流体室８４側を向く上向きの支持反
力Ｆｂとの両者が釣り合う中立位置（Ｆａ＝Ｆｂとな
り、初期のギャップＨを設定する位置）まで変位する
が、このとき、隔壁形成部材７８Ａ及びシールリング７
２間に固定されているシール部材８６は変形していない
状態となる。Next, the function and effect of the seal member 86 of this embodiment will be described. Drive signal y is applied to the excitation coil 52b.
In the state in which the movable member 78 is not supplied, the movable member 78 moves downwardly to the electromagnetic actuator 52 side of the movable member 78.
It is displaced to a neutral position (a position where Fa = Fb and an initial gap H is set) where both a and the upward supporting reaction force Fb of the leaf spring 82 facing the fluid chamber 84 side are balanced. Forming member 78A and seal ring 7
The seal member 86 fixed between the two is in a non-deformed state.
【００６０】そして、この中立位置の状態から励磁コイ
ル５２ｂに駆動信号ｙが供給されると、その駆動信号ｙ
によって励磁コイル５２ｂに発生する電磁力が永久磁石
５２ｃの磁力と逆方向であれば、可動部材７８がヨーク
５２ａとの間のギャップが増大する上方向に変位し、逆
に、励磁コイル５２ｂに発生する電磁力が永久磁石５２
ｃの磁力と同じ方向であれば、可動部材７８がヨーク５
２ａとのギャップが減少する下方向に変位する。When the drive signal y is supplied to the exciting coil 52b from the neutral position, the drive signal y is supplied.
If the electromagnetic force generated by the exciting coil 52b is in the opposite direction to the magnetic force of the permanent magnet 52c, the movable member 78 is displaced upward so that the gap between the movable member 78 and the yoke 52a increases, and conversely, the exciting coil 52b generates the electromagnetic force. The electromagnetic force generated by the permanent magnet 52
In the same direction as the magnetic force of c, the movable member 78 moves to the yoke 5
It is displaced in the downward direction where the gap with 2a decreases.
【００６１】このように、電磁アクチュエータ５２の電
磁力が発生して可動部材７８が上下方向に変位するとき
だけシール部材８６が上下方向に変形して歪みが発生す
るので、従来装置のシール部材と比較して本実施形態の
シール部材８６は永久歪みが発生しにくく、疲労が容易
に生じにくい。したがって、耐久性が向上したシール部
材８６を提供することができる。As described above, the seal member 86 is vertically deformed and distorted only when the electromagnetic force of the electromagnetic actuator 52 is generated and the movable member 78 is displaced in the vertical direction. In comparison, the seal member 86 of the present embodiment is unlikely to cause permanent set and is less likely to cause fatigue. Therefore, the seal member 86 with improved durability can be provided.
【００６２】また、シール部材８６は、外周部８６ａに
対して内周部８６ｂが下側（電磁アクチュエータ５２
側）に位置するように、外周部８６ａから内周部８６ｂ
に向かうに従い下り傾斜面を付けて形成されており、傾
斜面の角度を適宜変更するだけでシール部材８６の変形
開始位置を容易に設定することができるので、防振支持
装置の組み立て性を良好とすることができる。Further, in the seal member 86, the inner peripheral portion 86b is lower than the outer peripheral portion 86a (the electromagnetic actuator 52).
Side), the outer peripheral portion 86a to the inner peripheral portion 86b
The deformation start position of the seal member 86 can be easily set only by appropriately changing the angle of the inclined surface, so that the vibration proof support device can be easily assembled. Can be
【００６３】また、シール部材８６の上方向を向く反力
を無視してヨーク５２ａと可動部材１１の間の初期のギ
ャップＨを設定することができるので、電磁アクチュエ
ータ５２で発生する力の伝達特性が大きく変化すること
がなく、常に良好な防振効果を得るための制御系を設計
する上で有利となる。Since the initial gap H between the yoke 52a and the movable member 11 can be set by ignoring the reaction force of the seal member 86 directed upward, the transmission characteristic of the force generated by the electromagnetic actuator 52 can be set. Does not significantly change, which is advantageous in designing a control system that always obtains a good vibration damping effect.
【００６４】さらに、隔壁形成部材７８Ａが上下方向に
移動すると、シール部材８６は、凹み部８６ｄを設けた
位置の弾性変形量が他の領域と比較して大きくなり、こ
の凹み部８６ｄから内側の領域が隔壁形成部材７８Ａと
ともに上下方向に移動する。したがって、図３に示すよ
うに、隔壁形成部材７８Ａの上面の面積と、凹み部８６
ｄより内側のシール部材８６の上面の面積とを合わせた
大きな有効受圧面積ＥＳ2 となって流体室１５の容積変
化を大きくすることができるので、本実施形態の防振支
持装置２０は、正逆両方向に能動的な大きな支持力を発
生させることができる。Further, when the partition wall forming member 78A moves in the vertical direction, the amount of elastic deformation of the seal member 86 at the position where the recessed portion 86d is provided is larger than that in other regions, and the inside of the recessed portion 86d is increased. The region moves vertically with the partition wall forming member 78A. Therefore, as shown in FIG. 3, the area of the upper surface of the partition wall forming member 78A and the recessed portion 86.
Since a large effective pressure receiving area ES 2 that is the sum of the area of the upper surface of the seal member 86 inside d and the volume change of the fluid chamber 15 can be increased, the vibration isolating support device 20 of the present embodiment has It is possible to generate a large active supporting force in the opposite directions.
【００６５】また、シール部材８６の凹み部８６ｄを設
けた位置は、シールリング７２に固定した外周部８６
ａ、隔壁形成部材７８Ａのリブ８０ｂに固定した内周部
８６ｂの両者から離間しており、外周部８６ａ及び内周
部８６ｂに大きな応力が加わらないので、シールリング
７２及び隔壁形成部材７８Ａに対するシール部材８６の
一定の固定力を長期に渡って保持することができる。The position where the recessed portion 86d of the seal member 86 is provided is the outer peripheral portion 86 fixed to the seal ring 72.
a and the inner peripheral portion 86b fixed to the rib 80b of the partition wall forming member 78A, and a large stress is not applied to the outer peripheral portion 86a and the inner peripheral portion 86b, the seal ring 72 and the partition wall forming member 78A are sealed. The constant fixing force of the member 86 can be maintained for a long period of time.
【００６６】また、シール部材８６の外周部８６ａは、
シールリング７２の内周面全域を覆って加硫接着されて
いるので接着面積が増大する。また、シールリング７２
の接着面を曲面形状に形成しているので、シール部材８
６の外周部８６ａが弾性変形しても、その外周部８６ａ
に加わる応力が分散する。これにより、シール部材８６
の外周部８６ａ及びシールリング７２間の固定力がさら
に増大する。The outer peripheral portion 86a of the seal member 86 is
Since the entire area of the inner peripheral surface of the seal ring 72 is vulcanized and adhered, the adhesion area increases. In addition, the seal ring 72
Since the adhesive surface of is formed into a curved shape, the sealing member 8
Even if the outer peripheral portion 86a of 6 is elastically deformed, the outer peripheral portion 86a
The stress applied to is dispersed. Thereby, the seal member 86
The fixing force between the outer peripheral portion 86a and the seal ring 72 is further increased.
【００６７】さらに、シール部材８６の内周部８６ｂ
は、隔壁部８０ｃの外周から上方に突出した環状のリブ
８０ｂの周囲を覆って加硫接着されているので接着面積
が増大する。また、シール部材８６が接着するリブ８０
ｂの外周及び頂部を曲面形状に形成しているので、シー
ル部材８６の内周部８６ｂが弾性変形しても、その内周
部８６ｂに加わる応力が分散する。これにより、シール
部材８６の内周部８６ｂ及び隔壁形成部材７８Ａ間の固
定力がさらに増大する。Further, the inner peripheral portion 86b of the seal member 86
Is vulcanized and bonded so as to cover the periphery of the annular rib 80b protruding upward from the outer periphery of the partition wall portion 80c, so that the bonding area increases. Also, the rib 80 to which the seal member 86 adheres
Since the outer periphery and the top of b are formed in a curved shape, even if the inner peripheral portion 86b of the seal member 86 is elastically deformed, the stress applied to the inner peripheral portion 86b is dispersed. This further increases the fixing force between the inner peripheral portion 86b of the seal member 86 and the partition wall forming member 78A.
【００６８】さらにまた、隔壁形成部材７８Ａの隔壁部
８０ｃには、リブ８０ｂ側のシール部材８６から連続し
て延びる延長シール部８６ｃが加硫接着されており、こ
の延長部８６ｃも、隔壁形成部材７８Ａへのシール部材
８６の固定力を増大させる機能を有しているが、以下に
示す効果も得ることができる。即ち、電磁アクチュエー
タ５２の励磁コイル５２ｂが発熱すると、この熱が可動
部材７８を介して流体室８４内の流体に伝わって流体が
沸騰するおそれがあるが、隔壁部８０ｃの上面を覆って
いる延長シール部８６ｃが熱伝達を防止する熱遮断部材
として機能するので、流体室８４内の流体の沸騰を防止
することができる。Further, an extension seal portion 86c continuously extending from the seal member 86 on the rib 80b side is vulcanized and adhered to the partition wall portion 80c of the partition wall forming member 78A, and this extension portion 86c is also a partition wall forming member. Although it has a function of increasing the fixing force of the seal member 86 to 78A, the following effects can also be obtained. That is, when the exciting coil 52b of the electromagnetic actuator 52 generates heat, this heat may be transferred to the fluid in the fluid chamber 84 via the movable member 78 to boil the fluid, but the extension covering the upper surface of the partition wall portion 80c. Since the seal portion 86c functions as a heat blocking member that prevents heat transfer, it is possible to prevent boiling of the fluid in the fluid chamber 84.
【００６９】ここで、本実施形態の隔壁形成部材７８Ａ
が本発明の可動部材の上部に相当し、エンジン側連結部
材３０が本発明の第１部材に相当し、装置ケース４３、
シールリング７２、支持リング７４が本発明の第２部材
に相当する。Here, the partition wall forming member 78A of the present embodiment.
Corresponds to the upper part of the movable member of the present invention, the engine side connecting member 30 corresponds to the first member of the present invention, and the device case 43,
The seal ring 72 and the support ring 74 correspond to the second member of the present invention.
【００７０】次に、図４に示すものは、本発明の第２実
施形態を示すものである。なお、全体構成は上述した第
１の実施形態と同様であるためその図示及び説明は省略
する。Next, FIG. 4 shows a second embodiment of the present invention. The overall configuration is similar to that of the above-described first embodiment, and therefore its illustration and description will be omitted.
【００７１】本実施形態の可動部材７８を構成している
隔壁形成部材７８Ｃは、第１実施形態のようにリブを形
成せず、外観略円盤形状の部材である。そして、隔壁形
成部材７８Ｃの外周面７８Ｃ1 は曲面形状に形成されて
いる。The partition wall forming member 78C which constitutes the movable member 78 of the present embodiment is a member which does not have ribs as in the first embodiment and has a substantially disc-shaped appearance. The outer peripheral surface 78C 1 of the partition wall forming member 78C is formed in a curved shape.
【００７２】また、隔壁形成部材７８Ｃとシールリング
７２の内周面との間に加硫接着により固定されているシ
ール部材９０は、シールリング７２に固定されている外
周部９０ａから隔壁形成部材７８Ｃに固定されている内
周部９０ｂに向かうに従い肉厚を徐々に厚くしたリング
形状に形成されている。また、このシール部材９０は、
外周部９０ａに対して内周部９０ｂが下側（電磁アクチ
ュエータ５２側）に位置するように、外周部９０ａから
内周部９０ｂに向かうに従い下り傾斜面を付けて形成さ
れている。Further, the seal member 90 fixed by vulcanization adhesion between the partition wall forming member 78C and the inner peripheral surface of the seal ring 72 is separated from the outer peripheral portion 90a fixed to the seal ring 72 to the partition wall forming member 78C. It is formed in a ring shape in which the wall thickness gradually increases toward the inner peripheral portion 90b fixed to. Further, the sealing member 90 is
The inner peripheral portion 90b is formed on the lower side (on the side of the electromagnetic actuator 52) with respect to the outer peripheral portion 90a, and is formed so as to have a downwardly inclined surface from the outer peripheral portion 90a toward the inner peripheral portion 90b.
【００７３】また、シール部材９０の内周部９０ｂは、
前述した隔壁形成部材７８Ｃの曲面形状に形成した外周
面７８Ｃ1 を覆って固定されているとともに、シール部
材９０の内周部９０ｂには、隔壁形成部材７８Ｃの上面
を覆っている延長シール部９０ｃが連続して形成されて
いる。The inner peripheral portion 90b of the seal member 90 is
The extended seal portion 90c is fixed to cover the outer peripheral surface 78C 1 formed in the curved shape of the partition wall forming member 78C and fixed to the inner peripheral portion 90b of the seal member 90, and covers the upper surface of the partition wall forming member 78C. Are continuously formed.
【００７４】さらに、電磁アクチュエータ５２の電磁力
が発生していないときには、可動部材７８の電磁アクチ
ュエータ５２側を向く下向きの力Ｆａ（永久磁石５２ｃ
が磁路形成部材７８Ｂを引きつける力、流体室８４内の
流体の圧力及び質量、可動部材７８の重量を合わせた
力）と、板ばね８２の流体室８４側を向く上向きの支持
反力Ｆｂとの両者が釣り合う位置（Ｆａ＝Ｆｂとなる位
置）で可動部材７８とヨーク５２ａとの間に初期のギャ
ップＨを設定している。Further, when the electromagnetic force of the electromagnetic actuator 52 is not generated, the downward force Fa (permanent magnet 52c) of the movable member 78 facing the electromagnetic actuator 52 side.
Is a force that attracts the magnetic path forming member 78B, a pressure and a mass of the fluid in the fluid chamber 84, and a weight of the movable member 78), and an upward supporting reaction force Fb of the leaf spring 82 facing the fluid chamber 84 side. An initial gap H is set between the movable member 78 and the yoke 52a at a position where both of them are balanced (position where Fa = Fb).
【００７５】この実施形態によると、電磁アクチュエー
タ５２の電磁力が発生して可動部材７８が上下方向に変
位するときだけシール部材９０が上下方向に変形して歪
みが発生するので、従来装置のシール部材と比較して本
実施形態のシール部材９０も永久歪みが発生しにくく、
疲労が容易に生じにくい。したがって、耐久性が向上し
たシール部材９０を提供することができる。According to this embodiment, the seal member 90 is vertically deformed and distorted only when the electromagnetic force of the electromagnetic actuator 52 is generated to displace the movable member 78 in the vertical direction. Compared with the member, the sealing member 90 of the present embodiment is less likely to cause permanent strain,
Fatigue does not easily occur. Therefore, the seal member 90 having improved durability can be provided.
【００７６】また、シール部材９０は、外周部９０ａに
対して内周部９０ｂが下側（電磁アクチュエータ５２
側）に位置するように、外周部９０ａから内周部９０ｂ
に向かうに従い下り傾斜面を付けて形成されており、傾
斜面の角度を適宜変更するだけでシール部材９０の変形
開始位置を容易に設定することができるので、防振支持
装置の組み立て性を良好とすることができる。Further, in the seal member 90, the inner peripheral portion 90b is lower than the outer peripheral portion 90a (the electromagnetic actuator 52).
Side), the outer peripheral portion 90a to the inner peripheral portion 90b
It is formed with a descending inclined surface as it goes toward, and the deformation start position of the seal member 90 can be easily set only by appropriately changing the angle of the inclined surface. Can be
【００７７】また、シール部材９０の上方向を向く反力
を無視してヨーク５２ａと可動部材１１の間の初期のギ
ャップＨを設定することができるので、電磁アクチュエ
ータ５２で発生する力の伝達特性が大きく変化すること
がなく、常に良好な防振効果を得るための制御系を設計
する上で有利となる。Since the initial gap H between the yoke 52a and the movable member 11 can be set by ignoring the upward reaction force of the seal member 90, the transmission characteristic of the force generated by the electromagnetic actuator 52 can be set. Does not significantly change, which is advantageous in designing a control system that always obtains a good vibration damping effect.
【００７８】また、本実施形態では、隔壁形成部材７８
Ｃの上面の面積と、シール部材９０の内周側の面積とを
合わせた大きな有効受圧面積ＥＳ3 となって流体室１５
の容積変化を大きくすることができるので、本実施形態
の防振支持装置２０も、正逆両方向に能動的な大きな支
持力を発生させることができる。Further, in this embodiment, the partition wall forming member 78 is used.
A large effective pressure receiving area ES 3 that is the sum of the area of the upper surface of C and the area of the inner peripheral side of the seal member 90 becomes the fluid chamber 15
Since the change in the volume can be increased, the anti-vibration support device 20 of the present embodiment can also generate a large active support force in both the forward and reverse directions.
【００７９】また、シール部材９０の内周部９０ｂは、
隔壁形成部材７８Ｃの外周面７８Ｃ 1 を覆って加硫接着
されているので接着面積が増大する。また、シール部材
９０が接着する外周面７８を曲面形状に形成しているの
で、シール部材９０の内周部９０ｂが弾性変形しても、
その内周部９０ｂに加わる応力が分散する。これによ
り、シール部材９０の内周部９０ｂ及び隔壁形成部材７
８Ｃ間の固定力が増大する。Further, the inner peripheral portion 90b of the seal member 90 is
Outer peripheral surface 78C of partition wall forming member 78C 1Vulcanization and adhesion
As a result, the adhesion area increases. Also, the seal member
The outer peripheral surface 78 to which 90 is bonded is formed in a curved shape.
Therefore, even if the inner peripheral portion 90b of the seal member 90 is elastically deformed,
The stress applied to the inner peripheral portion 90b is dispersed. By this
The inner peripheral portion 90b of the seal member 90 and the partition wall forming member 7
The fixing force between 8C increases.
【００８０】また、隔壁形成部材７８Ｃの上面に延長シ
ール部９０ｃが加硫接着されているので、この延長シー
ル部９０ｃが熱伝達を防止する熱遮断部材として機能
し、流体室８４内の流体の沸騰を防止することができ
る。Further, since the extension seal portion 90c is vulcanized and adhered to the upper surface of the partition wall forming member 78C, the extension seal portion 90c functions as a heat shield member for preventing heat transfer, and the fluid in the fluid chamber 84 is prevented. Boiling can be prevented.
【００８１】なお、本発明の適用対象は車両に限定され
るものではなく、エンジン１７以外で発生する振動を低
減するための防振支持装置であっても本発明は適用可能
であり、適用対象に関係なく上記各実施の形態と同様の
作用効果を奏することができる。例えば、工作機械から
フロアや室内に伝達される振動を低減する防振支持装置
であっても、本発明は適用可能である。The object to which the present invention is applied is not limited to the vehicle, and the present invention can be applied even to a vibration-damping support device for reducing vibrations other than the engine 17. Regardless of the above, the same operational effects as those of the above-described respective embodiments can be obtained. For example, the present invention can be applied even to a vibration isolation support device that reduces vibrations transmitted from a machine tool to a floor or a room.
【００８２】さらに、上記各実施の形態では、駆動信号
ｙを生成するアルゴリズムとして同期式Ｆｉｌｔｅｒｅ
ｄ−Ｘ ＬＭＳアルゴリズムを適用しているが、適用可
能なアルゴリズムはこれに限定されるものではなく、例
えば、通常のＦｉｌｔｅｒｅｄ−Ｘ ＬＭＳアルゴリズ
ム等であってもよい。Further, in each of the above embodiments, the synchronous filtere is used as an algorithm for generating the drive signal y.
Although the d-X LMS algorithm is applied, the applicable algorithm is not limited to this, and may be, for example, a normal Filtered-X LMS algorithm.
【図１】車両の概略側面図である。FIG. 1 is a schematic side view of a vehicle.
【図２】本発明の防振支持装置の構成を示す断面図であ
る。FIG. 2 is a cross-sectional view showing the structure of the vibration-damping support device of the present invention.
【図３】本発明に係るシール部材及び可動部材の第１実
施形態を示す図である。FIG. 3 is a diagram showing a first embodiment of a seal member and a movable member according to the present invention.
【図４】本発明に係るシール部材及び可動部材の第２実
施形態を示す図である。FIG. 4 is a diagram showing a second embodiment of a seal member and a movable member according to the present invention.
１７ エンジン（振動体） １８ 車体（支持体） ２０ 防振支持装置 ３０ エンジン側連結部材（第１部材） ３２ 支持弾性体 ４３ 装置ケース（第２部材） ５２ 電磁アクチュエータ ５２ａ ヨーク ５２ｂ 励磁コイル ７２ シールリング（第２部材） ７４ 支持リング（第２部材） ７８ 可動部材 ７８Ａ 隔壁形成部材 ８０ｂ リブ ８２ 板ばね ８４ 流体室 ８６、９０ シール部材 ８６ａ、９０ａ シール部材の外周部 ８６ｂ、９０ｂ シール部材の内周部 ８６ｃ、９０ｃ 延長シール部 ８６ｄ 凹み部 ＥＳ2 、ＥＳ3 有効受圧面積 Ｈ 初期のギャップReference Signs List 17 engine (vibrating body) 18 vehicle body (supporting body) 20 anti-vibration supporting device 30 engine side connecting member (first member) 32 supporting elastic body 43 device case (second member) 52 electromagnetic actuator 52a yoke 52b exciting coil 72 seal ring (Second member) 74 Support ring (second member) 78 Movable member 78A Partition wall forming member 80b Rib 82 Leaf spring 84 Fluid chamber 86, 90 Seal member 86a, 90a Outer peripheral portion 86b, 90b of seal member Inner peripheral portion of seal member 86c, 90c extending seal portion 86d recessed portion ES 2, ES 3 effective pressure receiving area H initial gap
───────────────────────────────────────────────────── フロントページの続き (72)発明者 青木 和重 神奈川県横浜市神奈川区宝町２番地 日 産自動車株式会社内 (56)参考文献 特開 平８−14320（ＪＰ，Ａ) 特開 平６−264955（ＪＰ，Ａ) 特開 平９−100868（ＪＰ，Ａ) 特開 平９−273585（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16F 13/26 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazushige Aoki 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (56) Reference JP-A-8-14320 (JP, A) JP-A-6 -264955 (JP, A) JP 9-100868 (JP, A) JP 9-273585 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) F16F 13/26
Claims (9)
が固定される第１部材と、前記支持弾性体の他端側が固
定される第２部材と、前記支持弾性体及び前記第２部材
によって画成され内部に流体が封入された流体室と、前
記第２部材の内部に配設されて前記流体室の容積を変化
させる方向に変位する可動部材と、この可動部材を挟ん
で前記流体室とは逆側に位置するように前記第２部材に
支持され且つ前記可動部材を変位させる電磁アクチュエ
ータと、前記可動部材が前記電磁アクチュエータに対向
するように前記可動部材を弾性支持する板ばねと、内周
部が前記可動部材の外周に固定され、外周部が第２部材
に固定されており、前記流体室から前記電磁アクチュエ
ータへの流体の漏洩を防止する弾性体からなるリング形
状のシール部材とを有し、前記電磁アクチュエータは、
前記可動部材を引きつける磁力を発生する永久磁石と、
駆動信号に応じて前記永久磁石の磁力方向に対して正逆
方向に電磁力が発生して前記可動部材を変位させる励磁
コイルとを備えている防振支持装置において、前記励磁コイルの電磁力の非発生時に、前記永久磁石の
磁力と前記流体室内の流体の圧力及び質量と前記可動部
材の重量とを合わせた力に対して、前記板ばねの支持反
力が釣り合う位置まで前記可動部材が変位し、当該可動
部材と前記電磁アクチュエータとの間に初期のギャップ
を設定したときに、前記シール部材の弾性変形が略ゼロ
となるとともに、前記シール部材の外周部が固着する前
記第２部材の固着面を曲面形状に形成したことを特徴と
する防振支持装置。 1. A support elastic body, a first member to which one end side of the support elastic body is fixed, a second member to which the other end side of the support elastic body is fixed, the support elastic body and the second member. Defined by the above, a fluid chamber in which a fluid is enclosed, a movable member disposed inside the second member and displaced in a direction in which the volume of the fluid chamber is changed, and the fluid sandwiching the movable member. An electromagnetic actuator that is supported by the second member so as to be located on the side opposite to the chamber and that displaces the movable member, and a leaf spring that elastically supports the movable member so that the movable member faces the electromagnetic actuator. A ring-shaped seal member having an inner peripheral portion fixed to the outer periphery of the movable member and an outer peripheral portion fixed to the second member, and made of an elastic body for preventing fluid from leaking from the fluid chamber to the electromagnetic actuator. And And the electromagnetic actuator has
A permanent magnet that generates a magnetic force that attracts the movable member;
An anti-vibration support device comprising an exciting coil that displaces the movable member by generating an electromagnetic force in a direction opposite to the magnetic force direction of the permanent magnet according to a drive signal. When not generated, the permanent magnet
Magnetic force, pressure and mass of fluid in the fluid chamber, and the movable part
Support force of the leaf spring against the combined force of the material weight
The movable member is displaced to a position where the forces are balanced,
Initial gap between member and said electromagnetic actuator
When set to, the elastic deformation of the seal member is almost zero.
And before the outer peripheral portion of the seal member is fixed
The fixing surface of the second member is formed into a curved shape.
Anti-vibration support device.
が固定される第１部材と、前記支持弾性体の他端側が固
定される第２部材と、前記支持弾性体及び前記第２部材
によって画成され内部に流体が封入された流体室と、前
記第２部材の内部に配設されて前記流体室の容積を変化
させる方向に変位する可動部材と、この可動部材を挟ん
で前記流体室とは逆側に位置するように前記第２部材に
支持され且つ前記可動部材を変位させる電磁アクチュエ
ータと、前記可動部材が前記電磁アクチュエータに対向
するように前記可動部材を弾性支持する板ばねと、内周
部が前記可動部材の外周に固定され、外周部が第２部材
に固定されており、前記流体室から前記電磁アクチュエ
ータへの流体の漏洩を防止する弾性体からなるリ ング形
状のシール部材とを有し、前記電磁アクチュエータは、
前記可動部材を引きつける磁力を発生する永久磁石と、
駆動信号に応じて前記永久磁石の磁力方向に対して正逆
方向に電磁力が発生して前記可動部材を変位させる励磁
コイルとを備えている防振支持装置において、 前記励磁コイルの電磁力の非発生時に、前記永久磁石の
磁力と前記流体室内の流体の圧力及び質量と前記可動部
材の重量とを合わせた力に対して、前記板ばねの支持反
力が釣り合う位置まで前記可動部材が変位し、当該可動
部材と前記電磁アクチュエータとの間に初期のギャップ
を設定したときに、前記シール部材の弾性変形が略ゼロ
となるとともに、前記シール部材の内周部が固着する可
動部材の外周の固着面を曲面形状に形成したことを特徴
とする防振支持装置。 2. A support elastic body and one end side of the support elastic body
Is fixed to the first member and the other end side of the support elastic body is fixed.
Defined second member, the support elastic body, and the second member
And a fluid chamber defined by
It is arranged inside the second member to change the volume of the fluid chamber.
And the movable member that displaces in the direction
The second member so that it is located on the side opposite to the fluid chamber.
Electromagnetic actuator supported and displacing the movable member
And the movable member faces the electromagnetic actuator.
A leaf spring that elastically supports the movable member and an inner circumference
Part is fixed to the outer circumference of the movable member, and the outer circumference part is the second member.
Fixed to the electromagnetic chamber from the fluid chamber.
-Ring type made of an elastic body that prevents leakage of fluid to the chromatography data
And a seal member, the electromagnetic actuator,
A permanent magnet that generates a magnetic force that attracts the movable member;
Forward or reverse to the magnetic force direction of the permanent magnet according to the drive signal
Excitation to displace the movable member by generating electromagnetic force in the direction
In a vibration isolation support device including a coil, when the electromagnetic force of the exciting coil is not generated, the permanent magnet of the permanent magnet is
Magnetic force, pressure and mass of fluid in the fluid chamber, and the movable part
Support force of the leaf spring against the combined force of the material weight
The movable member is displaced to a position where the forces are balanced,
Initial gap between member and said electromagnetic actuator
When set to, the elastic deformation of the seal member is almost zero.
In addition, the inner peripheral part of the seal member may become stuck.
Characterized by forming the fixed surface of the outer periphery of the moving member into a curved shape
Anti-vibration support device.
前記内周部が前記電磁アクチュエータ側に位置するよう
に、前記外周部から内周部に向かうに従い下り傾斜を付
けて形成されていることを特徴とする請求項１又は２記
載の防振支持装置。 3. The seal member with respect to the outer peripheral portion
The inner peripheral part should be located on the electromagnetic actuator side.
In addition, a downward slope is applied from the outer circumference to the inner circumference.
3. The structure according to claim 1 or 2, characterized in that
Anti-vibration support device.
向けて突出する環状の突出部を形成し、この突出部の全
周に前記シール部材の外周部を固着したことを特徴とす
る請求項１乃至３の何れかに記載の防振支持装置。 4. The second member, the outer periphery of the movable member.
Form an annular protrusion that protrudes toward the
The outer peripheral portion of the seal member is fixed to the circumference.
The anti-vibration support device according to any one of claims 1 to 3.
部材の変位方向に向けて突出する環状のリブを形成し、
このリブの全周に前記シール部材の内周部を固着したこ
とを特徴とする請求項１乃至４の何れかに記載の防振支
持装置。5. An annular rib protruding from the outer periphery of the movable member in the displacement direction of the movable member is formed on the movable member,
The anti-vibration support device according to any one of claims 1 to 4, wherein the inner peripheral portion of the seal member is fixed to the entire circumference of the rib.
部材の外周の固着面を、曲面形状に形成したことを特徴
とする請求項１記載の防振支持装置。 6. The anti-vibration support device according to claim 1 , wherein the fixing surface of the outer periphery of the movable member to which the inner peripheral portion of the seal member is fixed is formed in a curved shape .
材を、前記可動部材の前記流体室に対向する面の略全域
を覆うように延長して設けたことを特徴とする請求項１
乃至６の何れかに記載の防振支持装置。7. The seal member fixed to the outer periphery of the movable member is provided so as to extend so as to cover substantially the entire area of the surface of the movable member facing the fluid chamber.
7. The anti-vibration support device according to any one of 6 to 6.
に固定されている外周部から前記第２部材に固定されて
いる内周部までの肉厚を略均一に形成するとともに、前
記第２部材側に寄った外周側に局部的に肉厚が減少する
環状の凹み部を形成したことを特徴とする請求項１乃至
７の何れかに記載の防振支持装置。8. The seal member is formed to have a substantially uniform thickness from an outer peripheral portion fixed to the outer periphery of the movable member to an inner peripheral portion fixed to the second member, and the second member The antivibration support device according to any one of claims 1 to 7, wherein an annular recessed portion whose thickness is locally reduced is formed on the outer peripheral side close to the member side.
されている外周部から前記可動部材の外周に固定されて
いる内周部に向かうに従い、徐々に肉厚を増大させて形
成したことを特徴とする請求項１乃至７の何れかに記載
の防振支持装置。9. The sealing member is formed by gradually increasing the thickness from the outer peripheral portion fixed to the second member toward the inner peripheral portion fixed to the outer periphery of the movable member. The anti-vibration support device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6858198A JP3409685B2 (en) | 1998-03-18 | 1998-03-18 | Anti-vibration support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6858198A JP3409685B2 (en) | 1998-03-18 | 1998-03-18 | Anti-vibration support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11264441A JPH11264441A (en) | 1999-09-28 |
| JP3409685B2 true JP3409685B2 (en) | 2003-05-26 |
Family
ID=13377901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6858198A Expired - Lifetime JP3409685B2 (en) | 1998-03-18 | 1998-03-18 | Anti-vibration support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3409685B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101439048B1 (en) * | 2013-08-06 | 2014-09-05 | 현대자동차주식회사 | Integrated type engine mount for vehicle |
-
1998
- 1998-03-18 JP JP6858198A patent/JP3409685B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11264441A (en) | 1999-09-28 |
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