JP5350287B2 - Fluid-filled active vibration isolator and manufacturing method thereof - Google Patents

Fluid-filled active vibration isolator and manufacturing method thereof Download PDF

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JP5350287B2
JP5350287B2 JP2010018229A JP2010018229A JP5350287B2 JP 5350287 B2 JP5350287 B2 JP 5350287B2 JP 2010018229 A JP2010018229 A JP 2010018229A JP 2010018229 A JP2010018229 A JP 2010018229A JP 5350287 B2 JP5350287 B2 JP 5350287B2
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drive shaft
annular
mover
fluid
axial direction
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JP2011157993A (en
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裕教 小山
睦 村岡
聡 梅村
篤 村松
篤 浦山
裕純 金
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Sumitomo Riko Co Ltd
Keihin Corp
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Sumitomo Riko Co Ltd
Keihin Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid-filled active vibration control device of a new structure which enables a driving shaft to be easily connected to a movable member in assembling the vibration control device body and an electromagnetic actuator; and to provide a method of manufacturing the same. <P>SOLUTION: A pair of annular connecting members 132, 134 is arranged to be externally mounted to the driving shaft 54 provided protrusively from a vibration member 48 and passed through the movable element 104, and is configured to sandwich axially a fixed portion 122 formed on either of the driving shaft 54 and the movable member 104 in the coupled portion of the driving shaft 54 and the movable member 104. In addition, a fixing means 130 is provided that fixes the driving shaft 54 to the movable member 104 by pressing a pair of annular connecting members 132, 134 to the fixed portion 122 in the axial direction. Furthermore, a temporary connecting member 152 is provided that prevents the fall-off of the pair of annular connecting members 132, 134 from the fixed portion 122 by connecting the pair of annular connecting members 132, 134 to each other prior to fixing by the fixing member 130. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、例えば自動車のエンジンマウントやサブフレームマウント等に適用される流体封入式能動型防振装置であって、受圧室に及ぼされる加振力に基づいて能動的な防振効果が発揮されるようにした流体封入式能動型防振装置と、その製造方法に関するものである。   The present invention is a fluid-filled active vibration isolator that is applied to, for example, an automobile engine mount or subframe mount, and exhibits an active vibration isolating effect based on an excitation force exerted on a pressure receiving chamber. The present invention relates to a fluid-filled active vibration isolator and a manufacturing method thereof.

従来から、振動伝達系を構成する部材間に介装されて、それら部材を相互に防振連結する防振装置として、壁部の一部が本体ゴム弾性体で構成されて非圧縮性流体を封入された受圧室を備えており、該受圧室の圧力を制御することで能動的な防振効果が発揮されるようにした流体封入式能動型防振装置がある。このような流体封入式能動型防振装置では、受圧室に及ぼされる加振力の発生源として、制御性に優れた電磁式アクチュエータが好適に採用される。   Conventionally, as an anti-vibration device that is interposed between members constituting a vibration transmission system and mutually anti-vibrates and connects these members, a part of the wall portion is formed of a main rubber elastic body and an incompressible fluid is supplied. There is a fluid-filled active vibration isolator that includes an enclosed pressure receiving chamber and that exhibits an active vibration isolating effect by controlling the pressure in the pressure receiving chamber. In such a fluid-filled active vibration isolator, an electromagnetic actuator excellent in controllability is suitably employed as a source for generating an excitation force exerted on the pressure receiving chamber.

ところで、流体封入式能動型防振装置では、第一の取付部材と第二の取付部材を本体ゴム弾性体で連結した構造を有して受圧室を備えたマウント本体と、受圧室の壁部の他の一部を構成する加振部材に対して外部から加振力を及ぼす電磁式アクチュエータとが、それぞれ独立して別体で形成されて、後から組み合わされるようになっている。   By the way, in the fluid-filled active vibration isolator, a mount body having a structure in which a first mounting member and a second mounting member are connected by a main rubber elastic body and having a pressure receiving chamber, and a wall portion of the pressure receiving chamber An electromagnetic actuator that exerts a vibration force from the outside on a vibration member that constitutes another part of the vibration member is formed independently of each other and combined later.

ところが、マウント本体と電磁式アクチュエータを別体として後から組み合わせる場合には、部品寸法の誤差やゴム弾性体の成形後の収縮変形等によって、相互に連結されるべきマウント本体側の駆動軸と電磁式アクチュエータ側の可動子が、相対的に傾斜や軸ずれを生じるおそれがある。その結果、駆動軸への連結によって可動子が傾動したり軸直角方向で変位して可動子が他部材に接触することで、偏磨耗による耐久性の低下や出力特性への悪影響等の問題が引き起こされる可能性もあった。   However, when the mount body and the electromagnetic actuator are combined separately later, the drive shaft on the side of the mount body and the electromagnetic to be connected to each other due to component size errors, shrinkage deformation after molding of the rubber elastic body, etc. There is a possibility that the movable element on the side of the type actuator is relatively inclined and misaligned. As a result, the mover tilts or is displaced in the direction perpendicular to the axis due to the connection to the drive shaft, and the mover comes into contact with other members, thereby causing problems such as deterioration in durability due to uneven wear and adverse effects on output characteristics. There was also the possibility of being triggered.

そこで、特許第４０７５０６２号公報（特許文献１）等には、駆動軸と可動子がコイルスプリング等で弾性的に連結されて、それら駆動軸と可動子の相対的な傾斜や位置ずれが許容されるようにした流体封入式能動型防振装置も提案されている。   Therefore, in Japanese Patent No. 4075062 (Patent Document 1) and the like, the drive shaft and the mover are elastically connected by a coil spring or the like, and relative inclination and displacement of the drive shaft and the mover are allowed. There has also been proposed a fluid-filled active vibration isolator.

しかしながら、このような特許文献１に記載の構造では、駆動軸と可動子を位置決めした状態で、可動子の中心孔内の狭いスペースで部品の組付け作業を行う必要があることから、製造時の作業が難しくなるおそれがある。しかも、可動子の中心孔内に配設されるコイルスプリング等の部品は、狭い配設領域に配設できるように寸法が小さくなることから、駆動軸を可動子に挿通した状態で組付け作業を行うには取扱いが困難であった。   However, in such a structure described in Patent Document 1, it is necessary to perform assembly work of parts in a narrow space in the central hole of the movable element in a state where the drive shaft and the movable element are positioned. May be difficult. In addition, coil springs and other parts arranged in the center hole of the mover are reduced in size so that they can be placed in a narrow area, so that the assembly work can be done with the drive shaft inserted through the mover. It was difficult to handle.

特許第４０７５０６２号公報Japanese Patent No. 4075062

本発明は、上述の事情を背景に為されたものであって、その解決課題は、防振装置本体と電磁式アクチュエータの組付けに際して、駆動軸と可動子を容易に連結することが出来る、新規な構造の流体封入式能動型防振装置と、その製造方法を提供することにある。   The present invention has been made in the background of the above-described circumstances, and its solution is to easily connect the drive shaft and the mover when assembling the vibration isolator body and the electromagnetic actuator. An object of the present invention is to provide a fluid-filled active vibration isolator having a novel structure and a method for manufacturing the same.

本発明の第一の態様は、第一の取付部材と第二の取付部材を本体ゴム弾性体によって連結すると共に壁部の一部が該本体ゴム弾性体で構成されて非圧縮性流体を封入された受圧室を形成することにより防振装置本体が形成されている一方、該受圧室の壁部の別の一部が加振部材で構成されており、該加振部材に駆動力を及ぼして加振変位させるアクチュエータが該加振部材を挟んで該受圧室と反対側に配設されて該防振装置本体に取り付けられている流体封入式能動型防振装置において、前記アクチュエータとして、前記第二の取付部材に固定されるコイルを含んで構成された固定子と、該コイルへの通電によって該固定子に対して直線的に相対変位可能とされた可動子とを備えた電磁式アクチュエータが採用されていると共に、前記加振部材から突設されて該可動子に挿通される駆動軸に対して外挿装着されて、該駆動軸と該可動子の連結部分において該駆動軸と該可動子の何れか一方に形成された固定部を軸方向に挟んで一対の環状連結部材が配設されており、該一対の環状連結部材を該固定部に対して軸方向に押圧して該駆動軸を該可動子に対して固定する固定手段が設けられている一方、該固定手段による固定に先立って該一対の環状連結部材を相互に連結して該固定部からの脱落を防止する仮連結手段が設けられていることを特徴とする。   In the first aspect of the present invention, the first mounting member and the second mounting member are connected by the main rubber elastic body, and a part of the wall portion is formed of the main rubber elastic body to enclose the incompressible fluid. While the vibration isolator body is formed by forming the pressure receiving chamber, another part of the wall portion of the pressure receiving chamber is constituted by a vibration member, and exerts a driving force on the vibration member. In the fluid-filled active vibration isolator mounted on the vibration isolator body, the actuator for exciting and displacing the actuator is disposed on the opposite side of the pressure receiving chamber with the vibration member interposed therebetween. An electromagnetic actuator comprising: a stator configured to include a coil fixed to the second mounting member; and a mover linearly displaceable with respect to the stator by energizing the coil And the excitation unit Fixedly formed on one of the drive shaft and the mover at a connecting portion between the drive shaft and the mover. A pair of annular coupling members are disposed sandwiching the portion in the axial direction, and the pair of annular coupling members are pressed against the fixing portion in the axial direction to fix the drive shaft to the mover. The fixing means is provided, while the pair of annular connecting members are connected to each other prior to fixing by the fixing means, and provisional connecting means is provided for preventing the falling from the fixing portion. To do.

第一の態様によれば、一対の環状連結部材が仮連結手段によって固定部からの脱落を防止されていることによって、環状連結部材を駆動軸又は可動子と一体的に取り扱うことが可能となっている。それ故、駆動軸と可動子を連結する前の単体状態で環状連結部材を予め固定部に取り付けておくことが出来て、防振装置本体と電磁式アクチュエータを組み付ける際には、環状連結部材を駆動軸と可動子の連結部分という狭いスペースに配設する作業を行う必要がない。その結果、防振装置本体と電磁式アクチュエータの組付け作業が容易になると共に、環状連結部材の誤組付けや紛失等の問題が生じるのを防ぐことも出来る。   According to the first aspect, since the pair of annular connecting members are prevented from falling off the fixed portion by the temporary connecting means, the annular connecting member can be handled integrally with the drive shaft or the mover. ing. Therefore, the annular coupling member can be attached to the fixed portion in advance in a single state before coupling the drive shaft and the mover, and when assembling the vibration isolator body and the electromagnetic actuator, There is no need to perform the work of arranging in a narrow space such as a connecting portion between the drive shaft and the mover. As a result, the assembly work of the vibration isolator main body and the electromagnetic actuator can be facilitated, and problems such as erroneous assembly and loss of the annular connecting member can be prevented.

本発明の第二の態様は、第一の態様に記載された流体封入式能動型防振装置において、前記駆動軸と前記可動子の何れか他方に第一の当接面が形成されていると共に、該第一の当接面に対して重ね合わされる第二の当接面が前記一対の環状連結部材に対してそれぞれ形成されており、それら第一の当接面と第二の当接面によって該駆動軸と該可動子の相対的な傾斜を許容する傾斜許容手段が構成されているものである。   According to a second aspect of the present invention, in the fluid-filled active vibration isolator described in the first aspect, a first contact surface is formed on one of the drive shaft and the mover. In addition, a second contact surface that is superimposed on the first contact surface is formed on each of the pair of annular coupling members, and the first contact surface and the second contact surface Inclination permitting means for permitting relative tilting of the drive shaft and the mover is constituted by the surface.

第二の態様では、駆動軸と可動子の連結部分に設けられた傾斜許容手段によって、駆動軸と可動子の相対的な傾斜が許容されている。それ故、例えば加振部材を支持する支持ゴム弾性体の成形後収縮等によって駆動軸が傾斜している場合にも、支持ゴム弾性体に余分な応力を及ぼすことなく、且つ可動子の偏磨耗やかじりによる作動不良も防止された状態で、駆動軸と可動子を連結することが出来る。   In the second aspect, relative inclination of the drive shaft and the mover is permitted by the tilt permission means provided at the connecting portion of the drive shaft and the mover. Therefore, for example, even when the drive shaft is inclined due to shrinkage after molding of the support rubber elastic body that supports the vibration member, the wear of the mover is not applied to the support rubber elastic body without applying excessive stress. The drive shaft and the mover can be connected in a state where malfunction due to scuffing is also prevented.

本発明の第三の態様は、第一又は第二の態様に記載された流体封入式能動型防振装置において、前記駆動軸と前記可動子の軸直角方向への相対変位を許容する変位許容手段が設けられているものである。   According to a third aspect of the present invention, in the fluid-filled active vibration isolator described in the first or second aspect, a displacement allowance that allows relative displacement of the drive shaft and the mover in a direction perpendicular to the axis. Means are provided.

第三の態様によれば、駆動軸と可動子の連結部分に設けれらた変位許容手段によって、駆動軸と可動子の相対的な軸ずれが許容されている。それ故、例えば部品の寸法誤差等によって駆動軸と可動子の軸直角方向での相対位置がずれている場合にも、それら駆動軸と可動子を問題なく連結することが出来る。   According to the third aspect, relative displacement of the drive shaft and the mover is permitted by the displacement permission means provided at the connecting portion of the drive shaft and the mover. Therefore, even when the relative positions of the drive shaft and the mover in the direction perpendicular to the axis are shifted due to, for example, dimensional errors of parts, the drive shaft and the mover can be connected without any problem.

本発明の第四の態様は、第一〜第三の何れか１つの態様に記載された流体封入式能動型防振装置において、前記固定部として筒状とされた前記可動子の内周側に突出する支持突部が設けられており、前記一対の環状連結部材が該支持突部を軸方向に挟み込むことで該可動子に組み付けられる一方、前記仮連結手段が筒状部を有していると共に、該筒状部の軸方向一方の端部に径方向外側に向かって突出する係止突部が形成されており、該仮連結手段の該筒状部が一方の該環状連結部材の中心孔に遊挿されて該係止突部が該一方の環状連結部材の内周縁部に係止されていると共に、該仮連結手段の軸方向他方の端部が他方の該環状連結部材の中心孔に挿入されて該他方の環状連結部材に固定されているものである。   According to a fourth aspect of the present invention, in the fluid-filled active vibration isolator described in any one of the first to third aspects, the inner peripheral side of the mover that is cylindrical as the fixed portion And a pair of annular connecting members are assembled to the mover by sandwiching the supporting protrusions in the axial direction, while the temporary connecting means has a cylindrical portion. And a locking projection projecting radially outward is formed at one axial end of the cylindrical portion, and the cylindrical portion of the temporary coupling means is connected to one of the annular coupling members. The locking protrusion is loosely inserted into the center hole and locked to the inner peripheral edge of the one annular connecting member, and the other axial end of the temporary connecting means is connected to the other annular connecting member. It is inserted into the center hole and fixed to the other annular connecting member.

第四の態様では、一対の環状連結部材が可動子に対して脱落不能に取り付けられていることにより、一対の環状連結部材を可動子と一体的に取り扱うことが出来て、可動子を駆動軸に連結する際に、一対の環状連結部材を可動子と駆動軸の連結部分に対して容易に組み付けることが出来る。   In the fourth aspect, the pair of annular coupling members are attached to the movable element so as not to fall off, so that the pair of annular coupling members can be handled integrally with the movable element, and the movable element is connected to the drive shaft. When connecting the two, the pair of annular connecting members can be easily assembled to the connecting portion of the mover and the drive shaft.

本発明の第五の態様は、第一〜第三の何れか１つの態様に記載された流体封入式能動型防振装置において、前記固定部として前記駆動軸に対して軸直角方向外側に膨出する膨出部が設けられており、前記一対の環状連結部材が該膨出部を軸方向に挟み込むことで該駆動軸に組み付けられる一方、前記仮連結手段が筒状部を有していると共に、該筒状部の軸方向一方の端部に径方向内側に向かって突出する係止突部が形成されており、一方の該環状連結部材が該仮連結手段の該筒状部の中心孔に遊挿されて該係止突部が該一方の環状連結部材の外周縁部に係止されると共に、他方の該環状連結部材が該仮連結手段の該筒状部の中心孔における軸方向他方の端部に挿入されて該筒状部に固定されているものである。   According to a fifth aspect of the present invention, in the fluid filled active vibration isolator described in any one of the first to third aspects, the fixed portion swells outward in a direction perpendicular to the drive shaft. A protruding bulging portion is provided, and the pair of annular connecting members are assembled to the drive shaft by sandwiching the bulging portion in the axial direction, while the temporary connecting means has a cylindrical portion. In addition, a locking projection protruding radially inward is formed at one axial end of the cylindrical portion, and one of the annular connecting members is the center of the cylindrical portion of the temporary connecting means. The locking protrusion is loosely inserted into the hole and locked to the outer peripheral edge of the one annular connecting member, and the other annular connecting member is a shaft in the central hole of the tubular portion of the temporary connecting means. It is inserted into the other end portion in the direction and fixed to the cylindrical portion.

第五の態様では、一対の環状連結部材が駆動軸に対して脱落不能に取り付けられていることにより、一対の環状連結部材を駆動軸と一体的に取り扱うことが出来て、可動子を駆動軸に連結する際に一対の環状連結部材をそれら可動子と駆動軸の連結部分に容易に組み付けることが出来る。   In the fifth aspect, since the pair of annular coupling members are attached to the drive shaft so as not to fall off, the pair of annular coupling members can be handled integrally with the drive shaft, and the mover is driven to the drive shaft. When connecting to a pair, the pair of annular connecting members can be easily assembled to the connecting portion of the mover and the drive shaft.

また、本発明の第六の態様は、第一〜第五の何れか１つの態様に記載された流体封入式能動型防振装置を製造するための方法であって、前記一対の環状連結部材を前記固定部を軸方向に挟んで配設する工程と、該一対の環状連結部材を前記仮連結手段で相互に連結して該固定部からの脱落を防止する工程と、該仮連結手段で連結された該一対の環状連結部材を前記固定手段によって該固定部に対して軸方向に押圧して該駆動軸を該可動子に対して固定する工程とを有することを特徴とする。   A sixth aspect of the present invention is a method for manufacturing the fluid-filled active vibration isolator described in any one of the first to fifth aspects, wherein the pair of annular coupling members A step of sandwiching the fixing portion in the axial direction, a step of connecting the pair of annular connecting members to each other by the temporary connecting means to prevent the fixing portion from coming off, and a step of temporarily connecting the And a step of fixing the drive shaft to the movable element by pressing the pair of connected annular connecting members axially against the fixed portion by the fixing means.

第六の態様によれば、駆動軸と可動子の連結部分に配されるべき一対の環状連結部材を、駆動軸と可動子の連結に先んじて、駆動軸又は可動子に設けられた固定部に対して仮連結手段で予め脱落不能に取り付けることによって、防振装置本体と電磁式アクチュエータの組付け作業を容易に行うことが出来る。   According to the sixth aspect, the pair of annular connecting members to be arranged at the connecting portion between the drive shaft and the mover is provided with the fixed portion provided on the drive shaft or the mover prior to the connection between the drive shaft and the mover. On the other hand, it is possible to easily perform the assembling work of the vibration isolator main body and the electromagnetic actuator by preliminarily attaching them with the temporary connecting means.

本発明によれば、駆動軸と可動子の連結部分に配設される一対の環状連結部材が、それら駆動軸と可動子の何れか一方に設けられた固定部に対して、駆動軸と可動子の連結に先んじて、仮連結手段によって脱落を防止された状態で取り付けられている。それ故、駆動軸と可動子の連結作業時には、一対の環状連結部材を駆動軸又は可動子と一体的に取り扱うことが可能となって、作業の実施が容易になると共に、狭い作業スペースでの作業を強いられることもなく、部品の誤組付け等の問題も防止される。   According to the present invention, the pair of annular coupling members disposed at the coupling portion between the drive shaft and the mover is movable with respect to the fixed portion provided on either the drive shaft or the mover. Prior to the connection of the child, it is attached in a state in which the drop-off is prevented by the temporary connection means. Therefore, when connecting the drive shaft and the mover, it becomes possible to handle the pair of annular connecting members integrally with the drive shaft or the mover. No work is forced, and problems such as incorrect assembly of parts are prevented.

本発明の第一の実施形態としてのエンジンマウントを示す縦断面図。The longitudinal cross-sectional view which shows the engine mount as 1st embodiment of this invention. 図１に示されたエンジンマウントの要部を拡大して示す縦断面図。The longitudinal cross-sectional view which expands and shows the principal part of the engine mount shown by FIG. 本発明の第二の実施形態としてのエンジンマウントを示す縦断面図。The longitudinal cross-sectional view which shows the engine mount as 2nd embodiment of this invention. 図３に示されたエンジンマウントの要部を拡大して示す縦断面図。The longitudinal cross-sectional view which expands and shows the principal part of the engine mount shown by FIG.

以下、本発明の実施形態について、図面を参照しつつ説明する。   Embodiments of the present invention will be described below with reference to the drawings.

先ず、図１には、本発明に従う構造とされた流体封入式能動型防振装置の第一の実施形態として、自動車用エンジンマウント１０が示されている。エンジンマウント１０は、防振装置本体としてのマウント本体１２に対して電磁式アクチュエータ１４を取り付けた構造とされている。更に、マウント本体１２は、第一の取付部材１６と第二の取付部材１８が本体ゴム弾性体２０によって相互に連結された構造を有している。なお、以下の説明において、上下方向とは、原則として、マウント軸方向である図１中の上下方向を言う。   First, FIG. 1 shows an automotive engine mount 10 as a first embodiment of a fluid-filled active vibration isolator having a structure according to the present invention. The engine mount 10 has a structure in which an electromagnetic actuator 14 is attached to a mount body 12 as a vibration isolator body. Further, the mount body 12 has a structure in which a first mounting member 16 and a second mounting member 18 are connected to each other by a main rubber elastic body 20. In the following description, the vertical direction means the vertical direction in FIG. 1 which is the mount axis direction in principle.

より詳細には、第一の取付部材１６は、段付の略円柱形状を有する高剛性の部材であって、軸方向中間に設けられた段差部分には径方向外方に向かって突出する円環板状のフランジ部２２が一体形成されている。また、第一の取付部材１６には、内周面にねじ山を形成された取付孔２４が中心軸上を延びて形成されており、取付孔２４に螺着されるボルトによって第一の取付部材１６が図示しないパワーユニットに固定されるようになっている。   More specifically, the first mounting member 16 is a high-rigidity member having a stepped substantially cylindrical shape, and is a circle protruding outward in the radial direction at a step portion provided in the middle in the axial direction. An annular plate-like flange portion 22 is integrally formed. Further, the first mounting member 16 is formed with a mounting hole 24 formed with a thread on the inner peripheral surface so as to extend on the central axis, and the first mounting member 16 is attached by a bolt screwed into the mounting hole 24. The member 16 is fixed to a power unit (not shown).

一方、第二の取付部材１８は、薄肉大径の略円筒形状を有する高剛性の部材であって、軸方向に直線的に延びている。   On the other hand, the second mounting member 18 is a highly rigid member having a thin and large-diameter, generally cylindrical shape, and linearly extends in the axial direction.

第一の取付部材１６と第二の取付部材１８は、同一中心軸上で軸方向に離隔するように配設されて、本体ゴム弾性体２０によって弾性的に連結されている。本体ゴム弾性体２０は、厚肉大径の略円錐台形状を有しており、その小径側端面に第一の取付部材１６が重ね合わされて加硫接着されていると共に、大径側端部の外周面が第二の取付部材１８の内周面に重ね合わされて加硫接着されている。これにより、第一の取付部材１６と第二の取付部材１８が相互に連結されていると共に、第二の取付部材１８の上側開口部が本体ゴム弾性体２０によって閉塞されている。なお、本体ゴム弾性体２０は、第一の取付部材１６と第二の取付部材１８を備えた一体加硫成形品として形成されている。   The first mounting member 16 and the second mounting member 18 are disposed so as to be separated from each other in the axial direction on the same central axis, and are elastically connected by the main rubber elastic body 20. The main rubber elastic body 20 has a thick-walled large-diameter substantially truncated cone shape, and the first mounting member 16 is overlapped and vulcanized and bonded to the small-diameter side end face, and the large-diameter side end part. The outer peripheral surface of the second mounting member 18 is overlapped with the inner peripheral surface of the second mounting member 18 and vulcanized and bonded. Thus, the first mounting member 16 and the second mounting member 18 are connected to each other, and the upper opening of the second mounting member 18 is closed by the main rubber elastic body 20. The main rubber elastic body 20 is formed as an integrally vulcanized molded product including the first mounting member 16 and the second mounting member 18.

また、本体ゴム弾性体２０の小径側端部には、環状のストッパゴム２６が一体形成されて、第一の取付部材１６のフランジ部２２に対して上方に突出するように固着されている。また、本体ゴム弾性体２０の大径側端部には、逆向きの略ドーム形状を有する大径凹所２８が形成されて、本体ゴム弾性体２０の大径側端面に開口している。更に、本体ゴム弾性体２０の大径側端部の外周縁部から下方に突出するようにゴム層３０が一体形成されており、第二の取付部材１８の内周面に加硫接着されることで、第二の取付部材１８の内周面が全面に亘ってゴム弾性体で被覆されている。   An annular stopper rubber 26 is integrally formed at the small diameter side end portion of the main rubber elastic body 20 and is fixed so as to protrude upward with respect to the flange portion 22 of the first mounting member 16. In addition, a large-diameter recess 28 having a substantially dome shape in the opposite direction is formed at the large-diameter side end of the main rubber elastic body 20 and opens to the large-diameter side end face of the main rubber elastic body 20. Further, the rubber layer 30 is integrally formed so as to protrude downward from the outer peripheral edge of the large-diameter end of the main rubber elastic body 20 and is vulcanized and bonded to the inner peripheral surface of the second mounting member 18. Thus, the inner peripheral surface of the second mounting member 18 is entirely covered with a rubber elastic body.

また、第二の取付部材１８には、可撓性膜３２が取り付けられている。可撓性膜３２は、略円板形状乃至は逆向きの略ドーム形状を呈する薄肉のゴム膜であって、軸方向に充分な弛みを備えている。また、可撓性膜３２の外周縁部には、固定金具３４が加硫接着されている。この固定金具３４は、薄肉大径の略円筒形状を有していると共に、軸方向中間部分に段差部３６を有しており、段差部３６を挟んだ軸方向上側が下側に比べて大径とされている。   A flexible film 32 is attached to the second attachment member 18. The flexible film 32 is a thin rubber film having a substantially disk shape or a substantially dome shape in the opposite direction, and has sufficient slackness in the axial direction. A fixing metal fitting 34 is vulcanized and bonded to the outer peripheral edge of the flexible film 32. The fixing bracket 34 has a thin-walled, large-diameter, generally cylindrical shape, and has a stepped portion 36 at an axially intermediate portion, and the upper side in the axial direction across the stepped portion 36 is larger than the lower side. It is the diameter.

そして、固定金具３４の大径部分が第二の取付部材１８に外嵌されることにより、可撓性膜３２が第二の取付部材１８の下側開口部を閉塞するように取り付けられて、本体ゴム弾性体２０と可撓性膜３２の軸方向間に非圧縮性流体を封入された流体封入領域３８が形成されている。なお、流体封入領域３８に封入される非圧縮性流体としては、水やアルキレングリコール，ポリアルキレングリコール，シリコーン油，或いはそれらの混合液等が好適に採用される。更に、封入流体は、後述する流体の流動作用に基づく防振効果を有利に得るために、粘度が０．１Ｐａ・ｓ以下の低粘性流体であることが望ましい。   And the flexible membrane 32 is attached so that the lower side opening part of the 2nd attachment member 18 may be obstruct | occluded by externally fitting the large diameter part of the fixing metal fitting 34 to the 2nd attachment member 18, A fluid sealing region 38 in which an incompressible fluid is sealed is formed between the main rubber elastic body 20 and the flexible film 32 in the axial direction. As the incompressible fluid sealed in the fluid sealing region 38, water, alkylene glycol, polyalkylene glycol, silicone oil, or a mixed solution thereof is preferably used. Furthermore, the sealed fluid is desirably a low-viscosity fluid having a viscosity of 0.1 Pa · s or less in order to advantageously obtain a vibration isolation effect based on the fluid flow action described later.

また、固定金具３４には、アウタブラケット４０が取り付けられている。このアウタブラケット４０は、段付きの略円筒形状であって、その下端部には周上の複数箇所に取付用脚部４２が設けられて、図示しない車両ボデーに固定されるようになっている。また、アウタブラケット４０の上端部には、径方向内側に突出する内フランジ状の当接部４４が一体形成されており、当接部４４が第一の取付部材１６のフランジ部２２と軸方向で所定距離を隔てて対向している。これにより、第一の取付部材１６と第二の取付部材１８が軸方向で大きく接近変位すると、フランジ部２２と当接部４４がストッパゴム２６を介して弾性的に当接するようになっており、第一の取付部材１６と第二の取付部材１８の相対的な接近変位量を制限するバウンドストッパ機構が構成されている。   An outer bracket 40 is attached to the fixing bracket 34. The outer bracket 40 has a substantially cylindrical shape with a step. The lower end of the outer bracket 40 is provided with mounting leg portions 42 at a plurality of locations on the circumference, and is fixed to a vehicle body (not shown). . Further, an inner flange-shaped contact portion 44 protruding radially inward is integrally formed at the upper end portion of the outer bracket 40, and the contact portion 44 and the flange portion 22 of the first mounting member 16 are in the axial direction. Are opposed to each other with a predetermined distance. As a result, when the first mounting member 16 and the second mounting member 18 are largely approached and displaced in the axial direction, the flange portion 22 and the contact portion 44 are elastically contacted via the stopper rubber 26. A bound stopper mechanism for limiting the relative approach displacement between the first mounting member 16 and the second mounting member 18 is configured.

また、流体封入領域３８には、第一の仕切部材４６が配設されている。第一の仕切部材４６は、全体として略円板形状とされており、加振部材４８と環状支持部材５０を支持ゴム弾性体５２で連結した構造を有している。   A first partition member 46 is disposed in the fluid sealing region 38. The first partition member 46 has a substantially disk shape as a whole, and has a structure in which a vibration member 48 and an annular support member 50 are connected by a support rubber elastic body 52.

加振部材４８は、小径の略有底円筒形状を有する硬質の部材であって、その底壁部には軸方向に貫通する小径の係止孔が貫通形成されている。更に、加振部材４８には、駆動軸５４が取り付けられており、駆動軸５４が加振部材４８から下方に向かって突出している。駆動軸５４は、略ロッド形状を有しており、その上端に設けられたかしめ突起５６が加振部材４８の係止孔に挿通されてかしめ固定されることにより、加振部材４８に固設されている。また、駆動軸５４は、可撓性膜３２の径方向中央を軸方向に貫通して配設されており、可撓性膜３２の中央部分が、駆動軸５４の軸方向中間部分に一体形成されたフランジ状の固着部５８に対して全周に亘って加硫接着されている。また、駆動軸５４の下端部には、雄ねじ部６０が一体形成されている。   The vibration member 48 is a hard member having a small-diameter substantially bottomed cylindrical shape, and a small-diameter locking hole penetrating in the axial direction is formed through the bottom wall portion of the vibration member 48. Further, a drive shaft 54 is attached to the vibration member 48, and the drive shaft 54 protrudes downward from the vibration member 48. The drive shaft 54 has a substantially rod shape, and a caulking projection 56 provided at the upper end thereof is inserted into the locking hole of the vibration member 48 and fixed by caulking, whereby the drive shaft 54 is fixed to the vibration member 48. Has been. In addition, the drive shaft 54 is disposed so as to penetrate the radial center of the flexible membrane 32 in the axial direction, and the central portion of the flexible membrane 32 is formed integrally with an intermediate portion of the drive shaft 54 in the axial direction. The flange-like fixing portion 58 is vulcanized and bonded over the entire circumference. A male screw portion 60 is integrally formed at the lower end portion of the drive shaft 54.

また、環状支持部材５０は、全体として大径の略円環形状であって、上方に開口する略一定の溝断面形状とされていることで、周方向に延びる周方向溝６２を有している。また、環状支持部材５０において周方向溝６２の底壁を構成する部位には、後述する複数の第二の連通孔９６が全周に亘って等間隔に形成されている。また、環状支持部材５０において周方向溝６２の外周壁を構成する部位には、上端から径方向外方に向かって突出するフランジ状の取付板部６４が一体形成されている。更に、環状支持部材５０において周方向溝６２の内周壁を構成する部位には、周上の一部において軸方向の突出高さが小さくされることで、径方向の連通路６６が形成されている。   Further, the annular support member 50 has a substantially annular shape with a large diameter as a whole and a substantially constant groove cross-sectional shape opening upward, and thus has a circumferential groove 62 extending in the circumferential direction. Yes. In addition, a plurality of second communication holes 96 described later are formed at equal intervals over the entire circumference in a portion of the annular support member 50 that constitutes the bottom wall of the circumferential groove 62. In addition, a flange-shaped mounting plate portion 64 that protrudes radially outward from the upper end is integrally formed at a portion of the annular support member 50 that forms the outer peripheral wall of the circumferential groove 62. Further, a radial communication path 66 is formed in a portion of the annular support member 50 that constitutes the inner peripheral wall of the circumferential groove 62 by reducing the axial protrusion height at a part of the circumference. Yes.

また、支持ゴム弾性体５２は、大径の略円環板形状を有しており、径方向内方に向かって次第に厚肉となっている。そして、同軸的に配置された加振部材４８と環状支持部材５０の径方向間に支持ゴム弾性体５２が加硫成形されて、支持ゴム弾性体５２の内周面が加振部材４８の周壁部に重ね合わされて加硫接着されていると共に、支持ゴム弾性体５２の外周縁部が環状支持部材５０の内周壁部に加硫接着されている。これにより、加振部材４８と環状支持部材５０が支持ゴム弾性体５２で連結されて、加振部材４８が環状支持部材５０に対して軸方向への相対変位を許容された状態で弾性的に支持されている。なお、支持ゴム弾性体５２は、加振部材４８と環状支持部材５０を備えた一体加硫成形品として形成されている。また、支持ゴム弾性体５２の外周側には、環状支持部材５０の周方向溝６２を周方向で複数に分割する図示しない隔壁部が一体形成されて、径方向放射状に延び出している。   Moreover, the support rubber elastic body 52 has a large-diameter substantially annular plate shape, and is gradually thickened radially inward. The support rubber elastic body 52 is vulcanized between the radial direction of the vibration member 48 and the annular support member 50 arranged coaxially, and the inner peripheral surface of the support rubber elastic body 52 is the peripheral wall of the vibration member 48. The outer peripheral edge portion of the support rubber elastic body 52 is vulcanized and bonded to the inner peripheral wall portion of the annular support member 50. Thereby, the vibration member 48 and the annular support member 50 are connected by the support rubber elastic body 52, and the vibration member 48 is elastic in a state in which relative displacement in the axial direction is allowed with respect to the ring support member 50. It is supported. The support rubber elastic body 52 is formed as an integral vulcanization molded product including the vibration member 48 and the annular support member 50. Further, on the outer peripheral side of the support rubber elastic body 52, a partition wall portion (not shown) that divides the circumferential groove 62 of the annular support member 50 into a plurality of portions in the circumferential direction is integrally formed and extends radially.

このような構造とされた第一の仕切部材４６は、環状支持部材５０の取付板部６４が第二の取付部材１８と固定金具３４の段差部３６との軸方向間に挟み込まれることにより、流体封入領域３８内で軸直角方向に広がるように配設されており、流体封入領域３８が第一の仕切部材４６を挟んで上下に２分されている。即ち、第一の仕切部材４６の上方に、壁部の一部を本体ゴム弾性体２０で構成されて、振動入力時に内圧変動が惹起される受圧室６８が形成されていると共に、第二の仕切部材７２の下方に、壁部の一部を可撓性膜３２で構成されて、容積変化が容易に許容される平衡室７０が形成されている。   In the first partition member 46 having such a structure, the mounting plate portion 64 of the annular support member 50 is sandwiched between the second mounting member 18 and the stepped portion 36 of the fixing bracket 34, so that The fluid sealing region 38 is disposed so as to extend in the direction perpendicular to the axis within the fluid sealing region 38, and the fluid sealing region 38 is vertically divided into two with the first partition member 46 interposed therebetween. That is, a pressure receiving chamber 68 in which a part of the wall portion is constituted by the main rubber elastic body 20 and an internal pressure fluctuation is caused at the time of vibration input is formed above the first partition member 46, and the second Below the partition member 72, an equilibrium chamber 70 is formed in which a part of the wall portion is made of the flexible film 32 and the volume change is easily allowed.

また、受圧室６８には、第二の仕切部材７２が配設されている。第二の仕切部材７２は、それぞれ薄肉の略円板形状を有する第一の板金具７４と第二の板金具７６が軸方向で重ね合わされた構造を有している。また、第一の板金具７４は、その径方向中央部分と外周縁部が上方に突出しており、径方向中央部分には下方に向かって開口する円形の凹所が形成されている。そして、第一の板金具７４に対して平板形状の第二の板金具７６が軸方向下方から重ね合わされることで、該凹所の開口部が覆蓋されて収容領域７８が形成されていると共に、外周縁部には外周面に開口して周方向に延びる周溝８０が形成されている。   A second partition member 72 is disposed in the pressure receiving chamber 68. The second partition member 72 has a structure in which a first plate metal member 74 and a second plate metal member 76 each having a thin and substantially disk shape are overlapped in the axial direction. Further, the first metal plate 74 has a radially central portion and an outer peripheral edge projecting upward, and a circular recess opening downward is formed in the radially central portion. A flat plate-like second metal fitting 76 is superimposed on the first metal fitting 74 from below in the axial direction, so that the opening of the recess is covered and an accommodation region 78 is formed. In the outer peripheral edge portion, a circumferential groove 80 is formed in the outer peripheral surface and extending in the circumferential direction.

また、収容領域７８には、略円板形状を有する可動部材としての可動ゴム板８２が収容配置されている。更に、可動ゴム板８２には、突出先端に向かって次第に狭幅となる複数の凸条が、厚さ方向両側に向かって突出するように且つ全周に亘って連続的に形成されており、可動ゴム板８２の厚さ寸法が径方向で変化している。   In the accommodation area 78, a movable rubber plate 82 as a movable member having a substantially disc shape is accommodated. Furthermore, the movable rubber plate 82 is formed with a plurality of ridges gradually narrowing toward the projecting tip so as to project toward both sides in the thickness direction and continuously over the entire circumference. The thickness dimension of the movable rubber plate 82 changes in the radial direction.

この可動ゴム板８２は、第一の板金具７４と第二の板金具７６の重ね合わせ面間に設けられた収容領域７８に配設されている。また、可動ゴム板８２の径方向中央に一体形成された位置決め用の突起８４が、第一，第二の板金具７４，７６の中心軸上を厚さ方向に貫通する位置決め用の孔に挿入されることにより、可動ゴム板８２が第一，第二の板金具７４，７６に対して径方向で位置決めされている。更に、可動ゴム板８２は、軸方向での微小変位を許容された状態での収容領域７８に配設されている。   The movable rubber plate 82 is disposed in an accommodation area 78 provided between the overlapping surfaces of the first plate metal member 74 and the second plate metal member 76. Further, a positioning projection 84 integrally formed at the radial center of the movable rubber plate 82 is inserted into a positioning hole penetrating the central axis of the first and second plate fittings 74 and 76 in the thickness direction. Thus, the movable rubber plate 82 is positioned in the radial direction with respect to the first and second plate fittings 74 and 76. Furthermore, the movable rubber plate 82 is disposed in the accommodation region 78 in a state where a minute displacement in the axial direction is allowed.

このような構造とされた第二の仕切部材７２は、第一の板金具７４の外周縁部が本体ゴム弾性体２０の下端面に重ね合わされていると共に、第二の板金具７６の外周縁部が第二の取付部材１８と固定金具３４の段差部３６との間に挟み込まれて支持されている。これにより、第二の仕切部材７２が受圧室６８内で軸直角方向に広がるように配設されて、受圧室６８が第二の仕切部材７２を挟んで上下に２分されている。そして、第二の仕切部材７２よりも上側が壁部の一部を本体ゴム弾性体２０で構成された振動入力室８６とされていると共に、第二の仕切部材７２よりも下側が壁部の一部を加振部材４８で構成された加振室８８とされている。なお、第一，第二の板金具７４，７６において可動ゴム板８２の軸方向両側に位置する部位に、複数の透孔９０が形成されており、可動ゴム板８２の一方の面に振動入力室８６の圧力が及ぼされると共に、他方の面に加振室８８の圧力が及ぼされるようになっている。   In the second partition member 72 having such a structure, the outer peripheral edge portion of the first metal plate 74 is superimposed on the lower end surface of the main rubber elastic body 20 and the outer peripheral edge of the second metal plate 76. The portion is sandwiched and supported between the second mounting member 18 and the stepped portion 36 of the fixing bracket 34. As a result, the second partition member 72 is disposed so as to expand in the direction perpendicular to the axis within the pressure receiving chamber 68, and the pressure receiving chamber 68 is divided into two vertically with the second partition member 72 interposed therebetween. The upper side of the second partition member 72 is a vibration input chamber 86 formed of a part of the main rubber elastic body 20, and the lower side of the second partition member 72 is a wall portion. A part of the vibration chamber 88 is composed of a vibration member 48. A plurality of through holes 90 are formed in portions of the first and second plate fittings 74 and 76 located on both sides in the axial direction of the movable rubber plate 82, and vibration input is applied to one surface of the movable rubber plate 82. The pressure of the chamber 86 is exerted, and the pressure of the vibration chamber 88 is exerted on the other surface.

また、第二の仕切部材７２の外周縁部に形成された周溝８０の開口部が第二の取付部材１８によって覆蓋されて、トンネル状通路が形成されている。更に、第二の仕切部材７２が第一の仕切部材４６に対して上方から重ね合わされることで周方向溝６２の上側開口部が第二の仕切部材７２によって覆蓋されている。そして、周溝８０と隔壁で分割された周方向溝６２の一部とが接続孔９２で連通されている一方、周溝８０の端部が第一の連通孔９４を通じて受圧室６８に連通されていると共に、周方向溝６２が底壁部に形成された第二の連通孔９６を通じて平衡室７０に連通されている。これにより、受圧室６８と平衡室７０を相互に連通する第一のオリフィス通路９８が形成されており、流体の流動作用に基づく防振効果が、エンジンシェイクに相当する１０Ｈｚ程度の低周波数域で有効に発揮されるようにチューニングされている。   Moreover, the opening part of the circumferential groove 80 formed in the outer periphery part of the 2nd partition member 72 is covered with the 2nd attachment member 18, and the tunnel-shaped channel | path is formed. Further, the second partition member 72 is overlapped with the first partition member 46 from above so that the upper opening of the circumferential groove 62 is covered with the second partition member 72. The circumferential groove 80 and a part of the circumferential groove 62 divided by the partition wall are communicated with each other through the connection hole 92, while the end of the circumferential groove 80 is communicated with the pressure receiving chamber 68 through the first communication hole 94. In addition, the circumferential groove 62 is communicated with the equilibrium chamber 70 through a second communication hole 96 formed in the bottom wall portion. As a result, a first orifice passage 98 that connects the pressure receiving chamber 68 and the equilibrium chamber 70 to each other is formed, and the vibration isolation effect based on the fluid flow action is in a low frequency range of about 10 Hz corresponding to the engine shake. It is tuned to be effective.

また、受圧室６８と平衡室７０は、連通路６６と、第一のオリフィス通路９８の平衡室７０側の端部とによっても相互に連通されており、もって、第二のオリフィス通路１００が形成されている。第二のオリフィス通路１００は、第一のオリフィス通路９８よりも高周波数にチューニングされて、例えばアイドリング振動や走行こもり音等の中乃至高周波数の振動に対して有効な防振効果が発揮されるようになっている。また、第二のオリフィス通路１００の流体流路上には、可動ゴム板８２が配設されており、低周波大振幅振動の入力時には、可動ゴム板８２が透孔９０を覆蓋することで第二のオリフィス通路１００が遮断されて、第一のオリフィス通路９８を通じての流体流動量が確保されるようになっている。なお、オリフィス通路９８，１００のチューニング周波数は、オリフィス通路９８，１００の通路断面積（Ａ）と通路長（Ｌ）の比（Ａ／Ｌ）を調節することで適当に設定されている。   Further, the pressure receiving chamber 68 and the equilibrium chamber 70 are also connected to each other by the communication passage 66 and the end portion of the first orifice passage 98 on the equilibrium chamber 70 side, so that the second orifice passage 100 is formed. Has been. The second orifice passage 100 is tuned to a higher frequency than the first orifice passage 98 and exhibits an effective vibration-proofing effect against medium to high-frequency vibrations such as idling vibration and traveling booming noise. It is like that. In addition, a movable rubber plate 82 is disposed on the fluid flow path of the second orifice passage 100, and the movable rubber plate 82 covers the through-hole 90 when the low frequency large amplitude vibration is input. The orifice passage 100 is blocked, and the amount of fluid flow through the first orifice passage 98 is ensured. The tuning frequency of the orifice passages 98 and 100 is appropriately set by adjusting the ratio (A / L) of the passage sectional area (A) and the passage length (L) of the orifice passages 98 and 100.

かくの如き構造とされたマウント本体１２には、電磁式アクチュエータ１４が取り付けられている。電磁式アクチュエータ１４は、マウント本体１２の下方に配設されており、第二の取付部材１８によって固定的に支持される固定子１０２と、固定子１０２に対して軸方向で相対的に駆動変位される可動子１０４とを、含んで構成されている。   An electromagnetic actuator 14 is attached to the mount body 12 having such a structure. The electromagnetic actuator 14 is disposed below the mount body 12, and the stator 102 fixedly supported by the second mounting member 18 and the drive displacement relative to the stator 102 in the axial direction. The movable element 104 is configured to be included.

固定子１０２は、非磁性材料で形成されたボビンに巻回されたコイル１０６を含んで構成されている。コイル１０６は、ボビンに固設された通電用端子を通じて外部から通電されるようになっており、コイル１０６への通電によって磁界が形成されるようになっている。また、コイル１０６には、上ヨーク金具１０８と下ヨーク金具１１０が取り付けられている。それら上下のヨーク金具１０８，１１０は、何れも強磁性材料で形成されており、上ヨーク金具１０８がコイル１０６の上面および内周面に重ね合わされていると共に、下ヨーク金具１１０がコイル１０６の下面に重ね合わされている。なお、上ヨーク金具１０８の内周部分と下ヨーク金具１１０の外周部分との軸方向間には、絶縁体で形成された環状のスペーサが介装されている。   The stator 102 includes a coil 106 wound around a bobbin made of a nonmagnetic material. The coil 106 is energized from the outside through an energizing terminal fixed to the bobbin, and a magnetic field is formed by energizing the coil 106. In addition, an upper yoke fitting 108 and a lower yoke fitting 110 are attached to the coil 106. The upper and lower yoke fittings 108 and 110 are both made of a ferromagnetic material. The upper yoke fitting 108 is superimposed on the upper surface and inner peripheral surface of the coil 106, and the lower yoke fitting 110 is placed on the lower surface of the coil 106. Is superimposed. An annular spacer formed of an insulator is interposed between the inner peripheral portion of the upper yoke fitting 108 and the outer peripheral portion of the lower yoke fitting 110.

また、上下のヨーク金具１０８，１１０を取り付けられたコイル１０６は、ハウジング１１２を介して固定金具３４に支持されている。ハウジング１１２は、略有底円筒形状を有しており、その下部においてコイル１０６および上下のヨーク金具１０８，１１０が支持されている。加えて、ハウジング１１２は、強磁性材料で形成されており、上下のヨーク金具１０８，１１０と協働してコイル１０６の周囲に磁路を形成している。そして、コイル１０６への通電によって、筒状とされた上ヨーク金具１０８の内周部分と、環状とされた下ヨーク金具１１０の内周部分に、それぞれ磁極が形成されるようになっている。   The coil 106 to which the upper and lower yoke fittings 108 and 110 are attached is supported by the fixing fitting 34 via the housing 112. The housing 112 has a substantially bottomed cylindrical shape, and the coil 106 and the upper and lower yoke fittings 108 and 110 are supported at the lower part thereof. In addition, the housing 112 is made of a ferromagnetic material, and forms a magnetic path around the coil 106 in cooperation with the upper and lower yoke fittings 108 and 110. By energizing the coil 106, magnetic poles are respectively formed on the inner peripheral portion of the cylindrical upper yoke fitting 108 and the inner peripheral portion of the annular lower yoke fitting 110.

また、下ヨーク金具１１０の中心孔は、蓋部材１１４によって閉塞されている。蓋部材１１４は、円形金属板の上面に板状のゴム弾性体を加硫接着した構造とされており、蓋部材１１４の装着によって異物の侵入が防止されるようになっている。更に、下ヨーク金具１１０の中心孔には、環状の支持金具１１６が螺着されていると共に、支持金具１１６の抜けを防止するための保持金具１１８が螺着されており、蓋部材１１４よりも上方に配設されている。   Further, the center hole of the lower yoke fitting 110 is closed by a lid member 114. The lid member 114 has a structure in which a plate-like rubber elastic body is vulcanized and bonded to the upper surface of a circular metal plate, and entry of foreign matter is prevented by mounting the lid member 114. Further, an annular support fitting 116 is screwed into the center hole of the lower yoke fitting 110 and a holding fitting 118 for preventing the removal of the support fitting 116 is screwed. Arranged above.

一方、上ヨーク金具１０８の中心孔に筒状のガイドスリーブ１２０が挿入されていると共に、ガイドスリーブ１２０の中心孔に可動子１０４が配設されている。可動子１０４は軸方向に延びる略円筒形状を有する強磁性材料で形成されており、可動子１０４の上端部には内フランジ状とされた固定部としての支持突部１２２が一体形成されていると共に、支持突部１２２の内周側に円形の挿通孔１２３が形成されている。また、可動子１０４の下端部は、その内周面が下方に向かって次第に拡径するテーパ形状とされて、下方に向かって次第に薄肉となっている。更に、可動子１０４の軸方向中間部分には、内周面に段差部が全周に亘って形成されており、該段差部を挟んで上部が下部よりも内方に突出している。   On the other hand, a cylindrical guide sleeve 120 is inserted into the central hole of the upper yoke fitting 108, and the movable element 104 is disposed in the central hole of the guide sleeve 120. The mover 104 is formed of a ferromagnetic material having a substantially cylindrical shape extending in the axial direction, and a support projection 122 as a fixed portion having an inner flange shape is integrally formed at the upper end of the mover 104. In addition, a circular insertion hole 123 is formed on the inner peripheral side of the support protrusion 122. Further, the lower end portion of the mover 104 has a tapered shape in which the inner peripheral surface gradually increases in diameter downward, and is gradually thinned downward. Further, a stepped portion is formed on the inner peripheral surface of the intermediate portion of the mover 104 in the axial direction, and the upper portion projects inward from the lower portion with the stepped portion interposed therebetween.

そして、可動子１０４は、上ヨーク金具１０８の内周面に重ね合わされたガイドスリーブ１２０の内周側に軸方向への変位を許容された状態で挿入されており、下ヨーク金具１１０の内周部分の上端に対して、軸方向上方に離隔配置されている。また、固定子１０２を構成する支持金具１１６と、可動子１０４の段差部との軸方向間にコイルスプリング１２４が介装されている。   The mover 104 is inserted into the inner peripheral side of the guide sleeve 120 superimposed on the inner peripheral surface of the upper yoke fitting 108 while allowing displacement in the axial direction, and the inner circumference of the lower yoke fitting 110 is inserted. It is spaced apart in the axial direction upward with respect to the upper end of the portion. Further, a coil spring 124 is interposed between the support fitting 116 constituting the stator 102 and the stepped portion of the mover 104 in the axial direction.

かかる可動子１０４の配設状態下、コイル１０６への通電で上下のヨーク金具１０８，１１０に磁極が形成されることにより、可動子１０４に対して軸方向下向きの磁気的な吸引力が及ぼされて、可動子１０４が固定子１０２に対して軸方向下方へ駆動変位されるようになっている。なお、本実施形態では、コイル１０６への通電のオン／オフを制御することにより、支持ゴム弾性体５２とコイルスプリング１２４の復元力を利用して問題となる振動の周波数に応じた加振力が発揮されるようになっている。尤も、交流電源によってコイル１０６への通電方向を制御することにより、可動子１０４に対して吸引力と排斥力を交互に及ぼすことで目的とする加振力を発揮するようにされた電磁式アクチュエータ等も採用可能である。   Under the arrangement of the mover 104, magnetic poles are formed on the upper and lower yoke fittings 108 and 110 by energizing the coil 106, so that a downward magnetic attraction force is exerted on the mover 104 in the axial direction. Thus, the movable element 104 is driven and displaced downward in the axial direction with respect to the stator 102. In this embodiment, the excitation force according to the frequency of the vibration in question using the restoring force of the support rubber elastic body 52 and the coil spring 124 by controlling the on / off of energization to the coil 106. Has come to be demonstrated. However, by controlling the energization direction to the coil 106 with an AC power source, an electromagnetic actuator that exerts a desired excitation force by alternately exerting an attractive force and a repelling force on the mover 104. Etc. can also be adopted.

かくの如き構造とされた電磁式アクチュエータ１４は、マウント本体１２の軸方向下側に配設されて、マウント本体１２に取り付けられている。即ち、ハウジング１１２の上端に一体形成されたフランジが、固定金具３４の下端に対してかしめ固定されることにより、マウント本体１２と電磁式アクチュエータ１４が相互に連結されている。   The electromagnetic actuator 14 having such a structure is disposed on the lower side in the axial direction of the mount body 12 and attached to the mount body 12. That is, the mount body 12 and the electromagnetic actuator 14 are connected to each other by caulking and fixing the flange formed integrally with the upper end of the housing 112 to the lower end of the fixing bracket 34.

また、マウント本体１２の駆動軸５４は、後述する膨出部１２８とナット１３０の軸方向間が電磁式アクチュエータ１４の可動子１０４に設けられた挿通孔１２３に対して挿通されており、それら駆動軸５４と可動子１０４の連結部分に連結手段１２６が設けられている。連結手段１２６は、図２に示されているように、駆動軸５４側に設けられた膨出部１２８およびナット１３０と、可動子１０４側に取り付けられた第一の環状連結部材１３２および第二の環状連結部材１３４とを含んで構成されている。   Further, the drive shaft 54 of the mount body 12 is inserted between an axial direction of a later-described bulging portion 128 and a nut 130 into an insertion hole 123 provided in the mover 104 of the electromagnetic actuator 14, and the drive A connecting means 126 is provided at a connecting portion between the shaft 54 and the mover 104. As shown in FIG. 2, the connecting means 126 includes a bulging portion 128 and a nut 130 provided on the drive shaft 54 side, a first annular connecting member 132 and a second member attached to the mover 104 side. And an annular connecting member 134.

膨出部１２８は、略下半球形状を有しており、駆動軸５４の軸方向中間部分に一体形成されて、径方向外方に突出している。また、膨出部１２８の上端には、径方向外方に突出する固着部５８が一体形成されて、可撓性膜３２の内周縁部が加硫接着されている。更に、膨出部１２８の下面は、下方に向かって凸の湾曲面であって、第一の当接面としての第一の上当接面１３６とされている。なお、膨出部１２８の外周部分には、膨出部１２８の表面上に突出する環状の規制突部１３７が一体形成されており、駆動軸５４と可動子１０４との間で許容され得る傾斜角度が制限されるようになっている。   The bulging portion 128 has a substantially lower hemispherical shape, is integrally formed at the axial intermediate portion of the drive shaft 54, and protrudes outward in the radial direction. A fixed portion 58 that projects radially outward is integrally formed at the upper end of the bulging portion 128, and the inner peripheral edge of the flexible membrane 32 is vulcanized and bonded. Furthermore, the lower surface of the bulging portion 128 is a curved surface that protrudes downward, and serves as a first upper contact surface 136 as a first contact surface. In addition, an annular regulating protrusion 137 that protrudes on the surface of the bulging portion 128 is integrally formed on the outer peripheral portion of the bulging portion 128, and an allowable inclination between the drive shaft 54 and the movable element 104. The angle is limited.

ナット１３０は、全体として六角ナット状であって、駆動軸５４の雄ねじ部６０に螺着されるようになっている。また、ナット１３０の軸方向上端面が下方に向かって凸の湾曲面とされており、かかる湾曲面によって第一の当接面としての第一の下当接面１３８が設けられている。なお、本実施形態のナット１３０では、板ばね１３９による軸方向の付勢力を利用した抜止機構が設けられている。   The nut 130 has a hexagonal nut shape as a whole, and is screwed onto the male screw portion 60 of the drive shaft 54. Further, the upper end surface in the axial direction of the nut 130 is a curved surface convex downward, and the curved surface is provided with a first lower contact surface 138 as a first contact surface. Note that the nut 130 of the present embodiment is provided with a retaining mechanism that uses the axial biasing force of the leaf spring 139.

一方、第一の環状連結部材１３２は、略小径リング状の部材であって、その上面に第二の当接面としての第二の上当接面１４０が形成されていると共に、下面が軸直角方向に広がる平坦面とされている。第二の上当接面１４０は、第一の上当接面１３６に対応する下方に凸の湾曲面であって、全体に亘って略一定の曲率半径で凹凸の無い滑らかな湾曲形状を有している。また、第一の環状連結部材１３２の下端部には、径方向内方に向かって突出する係止部１４２が、全周に亘って連続的に一体形成されている。更に、第一の環状連結部材１３２の下端部には、径方向に延びる通気溝１４４が形成されており、第一の環状連結部材１３２の下面および内外周両面に開口している。   On the other hand, the first annular coupling member 132 is a substantially small-diameter ring-shaped member, and a second upper contact surface 140 as a second contact surface is formed on the upper surface thereof, and the lower surface is perpendicular to the axis. The flat surface extends in the direction. The second upper abutment surface 140 is a curved surface convex downward corresponding to the first upper abutment surface 136, and has a smooth curved shape with no irregularities with a substantially constant radius of curvature throughout. Yes. In addition, a locking portion 142 protruding radially inward is integrally formed continuously at the lower end portion of the first annular connecting member 132 over the entire circumference. Further, a radial groove 144 extending in the radial direction is formed at the lower end portion of the first annular coupling member 132, and opens on both the lower surface and the inner and outer peripheral surfaces of the first annular coupling member 132.

第二の環状連結部材１３４は、略小径リング状の部材であって、その上面が軸直角方向に広がる平坦面とされていると共に、下面に第二の当接面としての第二の下当接面１４６が形成されている。第二の下当接面１４６は、第一の下当接面１３８に対応する下方に凸の湾曲面であって、全体に亘って略一定の曲率半径で凹凸の無い滑らかな湾曲形状を有している。また、第二の環状連結部材１３４の上端部には、径方向で直線的に延びる通気溝１４８が形成されており、第二の環状連結部材１３４の上面および内外両面に開口している。また、第二の環状連結部材１３４の中心孔には軸方向中間部分に段差が形成されており、第二の環状連結部材１３４における段差よりも上側部分が、下側部分に比して内径寸法が大きい圧入部１５０とされている。また、上記の説明からも明らかなように、第二の当接面１４０，１４６の曲率中心は、何れも駆動軸５４の中心軸上且つ加振部材４８側に位置しており、特に本実施形態では、それら第二の当接面１４０，１４６の曲率中心が互いに同じ位置に設定されている。   The second annular connecting member 134 is a substantially small ring-shaped member, and its upper surface is a flat surface extending in the direction perpendicular to the axis, and the second lower contact as a second contact surface on the lower surface. A contact surface 146 is formed. The second lower abutment surface 146 is a downwardly convex curved surface corresponding to the first lower abutment surface 138, and has a smooth curved shape with no irregularities with a substantially constant radius of curvature throughout. doing. In addition, a ventilation groove 148 that extends linearly in the radial direction is formed at the upper end of the second annular coupling member 134, and is open on the upper surface and both inner and outer surfaces of the second annular coupling member 134. In addition, a step is formed in the center hole of the second annular connecting member 134 in the axially intermediate portion, and the upper portion of the step in the second annular connecting member 134 has an inner diameter dimension as compared to the lower portion. Is a large press-fit portion 150. As is clear from the above description, the centers of curvature of the second contact surfaces 140 and 146 are both located on the center axis of the drive shaft 54 and on the vibration member 48 side. In the embodiment, the centers of curvature of the second contact surfaces 140 and 146 are set at the same position.

これら第一の環状連結部材１３２と第二の環状連結部材１３４は、可動子１０４の支持突部１２２に対して軸方向両側から重ね合わされており、支持突部１２２を挟んだ軸方向上側に第一の環状連結部材１３２が配設されていると共に、軸方向下側に第二の環状連結部材１３４が配設されている。また、第一，第二の環状連結部材１３２，１３４は、何れも可動子１０４の支持突部１２２に対して軸直角方向で相対変位可能に取り付けられている。   The first annular coupling member 132 and the second annular coupling member 134 are overlapped from both sides in the axial direction with respect to the support protrusion 122 of the mover 104, and the first annular connection member 132 and the second annular connection member 134 are arranged on the upper side in the axial direction across the support protrusion 122. One annular coupling member 132 is disposed, and a second annular coupling member 134 is disposed on the lower side in the axial direction. The first and second annular coupling members 132 and 134 are both attached to the support protrusion 122 of the mover 104 so as to be relatively displaceable in the direction perpendicular to the axis.

また、軸方向で支持突部１２２を挟んで対向配置された第一の環状連結部材１３２と第二の環状連結部材１３４は、仮連結手段としての仮連結部材１５２によって相互に仮連結されている。   Further, the first annular coupling member 132 and the second annular coupling member 134 which are arranged to face each other with the support protrusion 122 interposed therebetween in the axial direction are temporarily coupled to each other by a temporary coupling member 152 as a temporary coupling means. .

仮連結部材１５２は、図２に示されているように、全体として薄肉小径の略円筒形状を有しており、ステンレスなどの高剛性の材料で形成されている。また、仮連結部材１５２は、円筒形状の筒状部１５４と、筒状部１５４の軸方向上端において径方向外方に向かって突出するフランジ状の係止突部１５６とを一体的に備えている。更に、仮連結部材１５２の軸方向下端部は、外周面が下方に向かって次第に小径となるテーパ面とされていることで、下方に向かって次第に薄肉となっている。なお、係止突部１５６は、筒状部１５４の上端に曲げ加工を施すことによって形成されていても良いし、筒状部１５４の上端に別体のリングを外嵌固定することによって形成されていても良い。   As shown in FIG. 2, the temporary connecting member 152 has a thin cylindrical shape with a small diameter as a whole, and is formed of a highly rigid material such as stainless steel. Further, the temporary connecting member 152 is integrally provided with a cylindrical tubular portion 154 and a flange-shaped locking projection 156 that protrudes radially outward at the axial upper end of the tubular portion 154. Yes. Further, the lower end portion in the axial direction of the temporary connecting member 152 is a tapered surface having an outer peripheral surface that gradually decreases in diameter toward the lower side, so that the thickness gradually decreases toward the lower side. The locking protrusion 156 may be formed by bending the upper end of the cylindrical portion 154, or formed by externally fixing a separate ring to the upper end of the cylindrical portion 154. May be.

このような構造とされた仮連結部材１５２は、軸方向で対向配置された第一，第二の環状連結部材１３２，１３４の中心孔に上方から挿入されて、第一の環状連結部材１３２に遊挿されると共に、第二の環状連結部材１３４の圧入部１５０に対して圧入固定される。また、仮連結部材１５２の係止突部１５６が、第一の環状連結部材１３２の下端に設けられた係止部１４２に係止されることで、第一の環状連結部材１３２の第二の環状連結部材１３４に対する軸方向での離隔変位が制限されている。これらにより、第一の環状連結部材１３２と第二の環状連結部材１３４は、軸方向で所定量の相対変位を許容された状態で相互に仮連結されて、第一の環状連結部材１３２と第二の環状連結部材１３４の支持突部１２２からの脱落が防止されている。なお、仮連結部材１５２の下端部は、外径寸法が下方に行くに従って小さくなっており、仮連結部材１５２を第一，第二の環状連結部材１３２，１３４の中心孔に挿入し易くなっている。   The temporary connecting member 152 having such a structure is inserted from above into the center holes of the first and second annular connecting members 132 and 134 that are arranged to face each other in the axial direction, and is attached to the first annular connecting member 132. While being loosely inserted, it is press-fitted and fixed to the press-fit portion 150 of the second annular connecting member 134. In addition, the locking projection 156 of the temporary connecting member 152 is locked to the locking portion 142 provided at the lower end of the first annular connecting member 132, so that the second annular connecting member 132 has a second shape. The axial displacement with respect to the annular connecting member 134 is limited. As a result, the first annular coupling member 132 and the second annular coupling member 134 are temporarily coupled to each other in a state where a predetermined amount of relative displacement is allowed in the axial direction. The second annular connecting member 134 is prevented from falling off from the support protrusion 122. In addition, the lower end part of the temporary connection member 152 becomes smaller as the outer diameter dimension goes downward, so that the temporary connection member 152 can be easily inserted into the center holes of the first and second annular connection members 132 and 134. Yes.

また、可動子１０４および第一，第二の環状連結部材１３２，１３４の中心孔には、駆動軸５４が遊挿されており、駆動軸５４の雄ねじ部６０にナット１３０が螺着されることで、駆動軸５４と可動子１０４が連結される。即ち、駆動軸５４が可動子１０４の挿通孔１２３に挿通されることによって、第一の環状連結部材１３２と第二の環状連結部材１３４が、駆動軸５４における挿通孔１２３への挿通部分を挟んだ軸方向の各一方の側に外挿されて、駆動軸５４の膨出部１２８とナット１３０に対して軸方向で重ね合わされている。そして、ナット１３０が締め付けられることにより、第一，第二の環状連結部材１３２，１３４を取り付けられた可動子１０４の支持突部１２２が、駆動軸５４の膨出部１２８とナット１３０との軸方向対向面間に挟み込まれて、駆動軸５４と可動子１０４が連結されている。なお、ナット１３０を螺着する前の状態では、第一の環状連結部材１３２が膨出部１２８と支持突部１２２に接触していると共に、第二の環状連結部材１３４と支持突部１２２の間に隙間が形成されている。   Further, the drive shaft 54 is loosely inserted into the center hole of the mover 104 and the first and second annular coupling members 132 and 134, and the nut 130 is screwed to the male thread portion 60 of the drive shaft 54. Thus, the drive shaft 54 and the mover 104 are connected. That is, when the drive shaft 54 is inserted into the insertion hole 123 of the mover 104, the first annular coupling member 132 and the second annular coupling member 134 sandwich the insertion portion of the drive shaft 54 into the insertion hole 123. It is extrapolated to one side in the axial direction and overlapped with the bulging portion 128 of the drive shaft 54 and the nut 130 in the axial direction. When the nut 130 is tightened, the support protrusion 122 of the mover 104 to which the first and second annular coupling members 132 and 134 are attached becomes the shaft between the bulging portion 128 of the drive shaft 54 and the nut 130. The drive shaft 54 and the mover 104 are connected by being sandwiched between the direction-opposing surfaces. In the state before the nut 130 is screwed, the first annular coupling member 132 is in contact with the bulging portion 128 and the support projection 122, and the second annular coupling member 134 and the support projection 122 are in contact with each other. A gap is formed between them.

さらに、膨出部１２８の第一の上当接面１３６と第一の環状連結部材１３２の第二の上当接面１４０が軸方向で重ね合わされていると共に、ナット１３０の第一の下当接面１３８と第二の環状連結部材１３４の第二の下当接面１４６が軸方向に重ね合わされている。また、第一の上当接面１３６と第二の上当接面１４０および第一の下当接面１３８と第二の下当接面１４６は、駆動軸５４と可動子１０４が相対的にどのような角度であっても、面で接触することが可能となっている。これにより、駆動軸５４と可動子１０４は、相対的に傾斜している場合にも、連結手段１２６によって問題なく連結されるようになっており、連結手段１２６によって傾斜許容手段が構成されている。   Further, the first upper contact surface 136 of the bulging portion 128 and the second upper contact surface 140 of the first annular coupling member 132 are overlapped in the axial direction, and the first lower contact surface of the nut 130 is also overlapped. 138 and the second lower contact surface 146 of the second annular coupling member 134 are overlapped in the axial direction. Further, the first upper contact surface 136 and the second upper contact surface 140 and the first lower contact surface 138 and the second lower contact surface 146 show how the drive shaft 54 and the mover 104 are relative to each other. Even at a small angle, it is possible to make contact with the surface. As a result, even when the drive shaft 54 and the mover 104 are relatively inclined, the drive means 54 is connected without any problem by the connecting means 126, and the connecting means 126 constitutes an inclination allowing means. .

更にまた、ナット１３０を螺着する前の状態では、第一，第二の環状連結部材１３２，１３４が駆動軸５４の位置に合わせて軸直角方向に自由に追従する。これにより、駆動軸５４と可動子１０４が相対的な軸ずれを許容された状態であり、連結手段１２６によって変位許容手段が構成されている。   Furthermore, in a state before the nut 130 is screwed, the first and second annular coupling members 132 and 134 freely follow the direction perpendicular to the axis in accordance with the position of the drive shaft 54. As a result, the drive shaft 54 and the mover 104 are allowed to be displaced relative to each other, and the connecting means 126 constitutes a displacement allowing means.

また、ナット１３０が雄ねじ部６０に対して締め込まれることにより、駆動軸５４と可動子１０４の相対的な傾動および軸直角方向変位が阻止されて、それら駆動軸５４と可動子１０４が固定される。即ち、ナット１３０を軸方向で締め込むと、第一の当接面１３６，１３８と第二の当接面１４０，１４６の当接圧が大きくなって、それら第一の当接面１３６，１３８と第二の当接面１４０，１４６の間で作用する摩擦力が増大することから、駆動軸５４と可動子１０４の相対的な傾動が阻止される。更に、第一，第二の環状連結部材１３２，１３４と支持突部１２２の間に作用する摩擦力も大きくなることから、それら第一，第二の環状連結部材１３２，１３４の支持突部１２２に対する軸直角方向への変位も阻止されて、駆動軸５４と可動子１０４が軸直角方向で固定的に位置決めされる。これらによって、駆動軸５４と可動子１０４を固定する固定手段が実現されている。なお、固定手段を構成するナット１３０が、傾斜許容手段を構成する連結手段１２６に含まれており、固定手段が傾斜許容手段の一部を利用して構成されている。   Further, when the nut 130 is tightened with respect to the male screw portion 60, the relative tilt and the axial perpendicular displacement of the drive shaft 54 and the mover 104 are prevented, and the drive shaft 54 and the mover 104 are fixed. The That is, when the nut 130 is tightened in the axial direction, the contact pressure between the first contact surfaces 136 and 138 and the second contact surfaces 140 and 146 increases, and the first contact surfaces 136 and 138 are increased. Since the frictional force acting between the first contact surface 140 and the second contact surface 146 increases, the relative tilting of the drive shaft 54 and the mover 104 is prevented. Further, since the frictional force acting between the first and second annular coupling members 132 and 134 and the support protrusion 122 also increases, the first and second annular connection members 132 and 134 with respect to the support protrusion 122. Displacement in the direction perpendicular to the axis is also prevented, and the drive shaft 54 and the mover 104 are fixedly positioned in the direction perpendicular to the axis. By these, a fixing means for fixing the drive shaft 54 and the movable element 104 is realized. The nut 130 constituting the fixing means is included in the connecting means 126 constituting the tilt allowing means, and the fixing means is configured using a part of the tilt allowing means.

なお、仮連結部材１５２を用いた第一，第二の環状連結部材１３２，１３４の仮連結と、ナット１３０による駆動軸５４と可動子１０４の連結は、以下の如き方法で実現される。   The temporary connection of the first and second annular connection members 132 and 134 using the temporary connection member 152 and the connection of the drive shaft 54 and the mover 104 by the nut 130 are realized by the following method.

すなわち、先ず、第一の環状連結部材１３２と第二の環状連結部材１３４を同一中心軸上で軸方向に所定距離だけ離隔するように配置して、駆動軸５４に連結される前の可動子１０４単体の支持突部１２２に対してそれら第一，第二の環状連結部材１３２，１３４を軸方向両側から重ね合わせる。これにより、配設工程を完了する。   That is, first, the first annular connecting member 132 and the second annular connecting member 134 are arranged so as to be separated from each other by a predetermined distance in the axial direction on the same central axis, and the mover before being connected to the drive shaft 54. The first and second annular coupling members 132 and 134 are superposed on the supporting protrusion 122 of the single 104 from both sides in the axial direction. This completes the arrangement process.

次に、第一，第二の環状連結部材１３２，１３４および支持突部１２２の中心孔に仮連結部材１５２を挿入して、第一の環状連結部材１３２に対して軸方向に相対変位可能な状態で挿通すると共に、第二の環状連結部材１３４に対して圧入固定する。更に、仮連結部材１５２の上端部に外方への曲げ加工を施して係止突部１５６を形成することによって、係止突部１５６と第一の環状連結部材１３２の係止部１４２に対する係止で第一の環状連結部材１３２と第二の環状連結部材１３４の軸方向での離隔変位を制限する。これにより、第一, 第二の環状連結部材１３２，１３４を支持突部１２２に対して離脱不能に保持させて、脱落防止工程を完了する。   Next, the temporary connecting member 152 is inserted into the center holes of the first and second annular connecting members 132 and 134 and the support protrusion 122 so that the first annular connecting member 132 can be relatively displaced in the axial direction. While being inserted in a state, it is press-fitted and fixed to the second annular connecting member 134. Further, the engagement protrusion 156 and the engagement portion 142 of the first annular connection member 132 with respect to the engagement portion 142 are formed by bending the upper end portion of the temporary connection member 152 outward to form the engagement protrusion 156. The axial displacement of the first annular coupling member 132 and the second annular coupling member 134 is limited by stopping. Accordingly, the first and second annular coupling members 132 and 134 are held so as not to be detached from the support protrusion 122, and the drop-off prevention process is completed.

その後、駆動軸５４を第一，第二の環状連結部材１３２，１３４および仮連結部材１５２の中心孔に挿通させる。この時、第一の環状連結部材１３２が膨出部１２８と支持突部１２２に接触していると共に、第二の環状連結部材１３４と支持突部１２２の間に隙間が形成されており、駆動軸５４と可動子１０４の相対的な軸ずれおよび傾斜が許容され得る状態となっている。   Thereafter, the drive shaft 54 is inserted through the center holes of the first and second annular connecting members 132 and 134 and the temporary connecting member 152. At this time, the first annular coupling member 132 is in contact with the bulging portion 128 and the support projection 122, and a gap is formed between the second annular coupling member 134 and the support projection 122. The shaft 54 and the mover 104 are in a state in which a relative axial shift and inclination can be allowed.

かかる状態から駆動軸５４の雄ねじ部６０にナット１３０を締め付けて、第一の環状連結部材１３２と第二の環状連結部材１３４に接近方向の軸方向外力を作用させることにより、第二の環状連結部材１３４と支持突部１２２の間の隙間を無くして、駆動軸５４と可動子１０４を固定する。これにより、軸固定工程を完了する。   From this state, the nut 130 is fastened to the male thread portion 60 of the drive shaft 54, and an axial external force in the approaching direction is applied to the first annular coupling member 132 and the second annular coupling member 134, thereby the second annular coupling. The gap between the member 134 and the support protrusion 122 is eliminated, and the drive shaft 54 and the mover 104 are fixed. Thereby, the shaft fixing step is completed.

以上の工程を経ることにより、駆動軸５４と可動子１０４が連結前の相対的な傾斜角と軸直角方向位置を維持したままで固定的に連結されて、マウント本体１２と電磁式アクチュエータ１４を有するエンジンマウント１０が実現される。   Through the above steps, the drive shaft 54 and the mover 104 are fixedly connected while maintaining the relative inclination angle and the position perpendicular to the axis before the connection, and the mount body 12 and the electromagnetic actuator 14 are connected. The engine mount 10 having the above is realized.

このような構造とされたエンジンマウント１０は、第一の取付部材１６がパワーユニットに取り付けられると共に、第二の取付部材１８が車両ボデーに取り付けられることにより、自動車に装着されるようになっている。そして、エンジンシェイクに相当する低周波数振動の入力時には、第一のオリフィス通路９８を通じて流動する流体の流動作用に基づいて、目的とする防振効果（高減衰効果）が発揮されるようになっている。一方、アイドリング振動や走行こもり音に相当する中乃至高周波数振動の入力時には、第二のオリフィス通路１００を通じて流動する流体の流動作用に基づいて、目的とする防振効果（低動ばね効果）が発揮されるようになっている。   The engine mount 10 having such a structure is adapted to be mounted on an automobile by attaching the first attachment member 16 to the power unit and attaching the second attachment member 18 to the vehicle body. . When a low frequency vibration corresponding to an engine shake is input, the intended vibration isolation effect (high damping effect) is exhibited based on the fluid action of the fluid flowing through the first orifice passage 98. Yes. On the other hand, when a medium to high frequency vibration corresponding to idling vibration or traveling noise is input, the target vibration isolation effect (low dynamic spring effect) is obtained based on the fluid action of the fluid flowing through the second orifice passage 100. It has come to be demonstrated.

さらに、エンジンマウント１０では、電磁式アクチュエータ１４による発生力が駆動軸５４を介して加振部材４８に伝達されることで、受圧室６８の圧力が能動的に制御されるようになっている。これにより、入力振動に応じた能動的な防振効果が発揮されるようになっており、更なる防振性能の向上が図られている。   Further, in the engine mount 10, the force generated by the electromagnetic actuator 14 is transmitted to the vibration member 48 via the drive shaft 54, so that the pressure in the pressure receiving chamber 68 is actively controlled. As a result, an active anti-vibration effect corresponding to the input vibration is exhibited, and further improvement of the anti-vibration performance is achieved.

また、膨出部１２８およびナット１３０と第一，第二の環状連結部材１３２，１３４との当接面が、湾曲面とされた第一の当接面１３６，１３８と第二の当接面１４０，１４６で構成されている。そして、駆動軸５４と可動子１０４は、ナット１３０で固定される前の状態において、膨出部１２８およびナット１３０が、第一，第二の環状連結部材１３２，１３４に対してフレキシブルに対応可能とされていることによって、相対的な傾斜を許容されている。それ故、支持ゴム弾性体５２の成形後収縮等によって駆動軸５４がマウント中心軸に対して傾斜している場合にも、駆動軸５４に揺動方向の不要な応力が作用することなく、且つ可動子１０４がマウント中心軸に対して傾斜することもない状態で、駆動軸５４と可動子１０４が連結される。従って、支持ゴム弾性体５２の耐久性低下や、可動子１０４の偏磨耗およびかじりによる作動不良を、回避することが出来る。   In addition, the first contact surfaces 136 and 138 and the second contact surfaces in which the contact surfaces of the bulging portion 128 and the nut 130 and the first and second annular coupling members 132 and 134 are curved surfaces are used. 140,146. The drive shaft 54 and the mover 104 can flexibly correspond to the first and second annular coupling members 132 and 134 in the state before the drive shaft 54 and the mover 104 are fixed by the nut 130. Therefore, relative inclination is allowed. Therefore, even when the drive shaft 54 is inclined with respect to the mount center axis due to shrinkage after molding of the support rubber elastic body 52, unnecessary stress in the swinging direction does not act on the drive shaft 54, and The drive shaft 54 and the mover 104 are connected in a state where the mover 104 is not inclined with respect to the mount center axis. Accordingly, it is possible to avoid the deterioration of the durability of the support rubber elastic body 52 and the malfunction due to the partial wear and galling of the mover 104.

さらに、ナット１３０で固定される前の状態において、第一，第二の環状連結部材１３２，１３４が可動子１０４に対して軸直角方向で相対変位可能に取り付けられている。それ故、駆動軸５４と可動子１０４は、第一，第二の環状連結部材１３２，１３４の可動子１０４に対する軸直角方向での相対変位によって、軸直角方向での軸ずれを許容されている。これにより、マウント本体１２と電磁式アクチュエータ１４の組付けに際して、駆動軸５４と可動子１０４が軸直角方向でずれている場合にも、それら駆動軸５４と可動子１０４が連結前の相対的な位置関係を維持した状態で容易に連結される。   Further, in a state before being fixed by the nut 130, the first and second annular coupling members 132 and 134 are attached to the movable element 104 so as to be relatively displaceable in the direction perpendicular to the axis. Therefore, the drive shaft 54 and the mover 104 are allowed to be displaced in the direction perpendicular to the axis by the relative displacement of the first and second annular coupling members 132 and 134 in the direction perpendicular to the axis with respect to the mover 104. . As a result, when the mount body 12 and the electromagnetic actuator 14 are assembled, even when the drive shaft 54 and the mover 104 are displaced in the direction perpendicular to the axis, the drive shaft 54 and the mover 104 are relative to each other before connection. It is easily connected while maintaining the positional relationship.

また、エンジンマウント１０では、第一の環状連結部材１３２と第二の環状連結部材１３４が、駆動軸５４と可動子１０４の連結に先んじて、仮連結部材１５２によって相互に仮連結されて、可動子１０４に対して予め脱落不能に組み付けられている。これにより、それら第一，第二の環状連結部材１３２，１３４が可動子１０４に対する装着状態に保持されるようになっており、第一，第二の環状連結部材１３２，１３４を可動子１０４と一体的に１つの部品として取り扱うことが出来る。従って、マウント本体１２と電磁式アクチュエータ１４の組付け時に駆動軸５４が可動子１０４に対して挿通された状態で第一，第二の環状連結部材１３２，１３４の組付け作業を行う必要がなく、単体の可動子１０４に対してそれら第一，第二の環状連結部材１３２，１３４を容易に組み付けることが出来る。   Further, in the engine mount 10, the first annular coupling member 132 and the second annular coupling member 134 are temporarily coupled to each other by the temporary coupling member 152 prior to coupling of the drive shaft 54 and the movable element 104, and are movable. It is assembled to the child 104 in advance so that it cannot be removed. As a result, the first and second annular coupling members 132 and 134 are held in the mounted state with respect to the movable element 104, and the first and second annular coupling members 132 and 134 are connected to the movable element 104. It can be handled as a single component. Therefore, when the mount body 12 and the electromagnetic actuator 14 are assembled, it is not necessary to perform the assembly work of the first and second annular coupling members 132 and 134 in a state where the drive shaft 54 is inserted through the movable element 104. The first and second annular coupling members 132 and 134 can be easily assembled to the single movable element 104.

また、仮連結部材１５２を圧入固定される第二の環状連結部材１３４は、仮連結部材１５２を圧入される上側部分が、下側部分よりも内径寸法の大きい圧入部１５０とされている。これにより、仮連結部材１５２による仮連結状態においても、駆動軸５４と第一，第二の環状連結部材１３２，１３４および仮連結部材１５２との軸直角方向間に充分な隙間が確保されている。その結果、駆動軸５４の可動子１０４に対する傾斜が、それら駆動軸５４と可動子１０４の連結部分における軸直角方向での大型化を要することなく、有効に許容される。   Further, in the second annular connecting member 134 to which the temporary connecting member 152 is press-fitted and fixed, the upper portion into which the temporary connecting member 152 is press-fitted is a press-in portion 150 having a larger inner diameter than the lower portion. Thereby, even in the temporarily connected state by the temporary connecting member 152, a sufficient gap is secured between the drive shaft 54 and the first and second annular connecting members 132 and 134 and the temporary connecting member 152 in the direction perpendicular to the axis. . As a result, the inclination of the drive shaft 54 with respect to the mover 104 is effectively permitted without requiring an increase in size in the direction perpendicular to the axis at the connecting portion of the drive shaft 54 and the mover 104.

次に、図３には、本発明に従う構造の流体封入式能動型防振装置の第二の実施形態として、自動車用のエンジンマウント１６０が示されている。エンジンマウント１６０は、防振装置本体としてのマウント本体１６２と電磁式アクチュエータ１６４を含んで構成されている。なお、以下の説明において、第一の実施形態と実質的に同一の部材および部位については、図中に同一の符号を付すことにより説明を省略する。   Next, FIG. 3 shows an engine mount 160 for an automobile as a second embodiment of the fluid-filled active vibration isolator having a structure according to the present invention. The engine mount 160 includes a mount main body 162 as an anti-vibration device main body and an electromagnetic actuator 164. In addition, in the following description, about the member and site | part substantially the same as 1st embodiment, description is abbreviate | omitted by attaching | subjecting the same code | symbol in a figure.

マウント本体１６２は、第一の取付部材１６と第二の取付部材１６６を本体ゴム弾性体２０で連結した構造を有している。本実施形態の第二の取付部材１６６は、薄肉大径の段付円筒形状を有しており、下部が上部に比べて大径とされていると共に、下端部にはかしめ片１６８が一体形成されている。そして、第一の取付部材１６と第二の取付部材１６６は、同一中心軸上で軸方向に離隔して配置されて、本体ゴム弾性体２０によって弾性的に連結されている。   The mount main body 162 has a structure in which the first mounting member 16 and the second mounting member 166 are connected by the main rubber elastic body 20. The second mounting member 166 of the present embodiment has a thin and large-diameter stepped cylindrical shape, the lower part has a larger diameter than the upper part, and a caulking piece 168 is integrally formed at the lower end part. Has been. The first attachment member 16 and the second attachment member 166 are arranged on the same central axis so as to be separated from each other in the axial direction, and are elastically connected by the main rubber elastic body 20.

また、第二の取付部材１６６の下側開口部には、可撓性膜３２が配設されている。即ち、可撓性膜３２の外周縁部に固着された環状の固定金具１７０が第二の取付部材１６６のかしめ片１６８でかしめ固定されることで、第二の取付部材１６６の下側開口部が可撓性膜３２によって覆蓋されている。   A flexible film 32 is disposed in the lower opening of the second attachment member 166. That is, the annular fixing fitting 170 fixed to the outer peripheral edge of the flexible film 32 is fixed by caulking with the caulking piece 168 of the second mounting member 166, so that the lower opening of the second mounting member 166 is opened. Is covered with a flexible membrane 32.

また、本体ゴム弾性体２０と可撓性膜３２の軸方向対向面間には、仕切部材１７２が配設されている。仕切部材１７２は、全体として略円板形状とされており、仕切部材本体１７４と加振部材１７６で構成されている。仕切部材本体１７４は、略円環板形状とされており、外周部分には上面に開口する周溝１７８が形成されている。また、仕切部材本体１７４の内周面は段付形状とされており、仕切部材本体１７４の内径寸法は加振部材１７６の配設領域である下側部分が上側部分よりも小さくされている。   In addition, a partition member 172 is disposed between the axially opposing surfaces of the main rubber elastic body 20 and the flexible film 32. The partition member 172 has a substantially disk shape as a whole, and includes a partition member main body 174 and a vibration member 176. The partition member main body 174 has a substantially annular plate shape, and a circumferential groove 178 that opens to the upper surface is formed in the outer peripheral portion. In addition, the inner peripheral surface of the partition member main body 174 has a stepped shape, and the inner diameter dimension of the partition member main body 174 is smaller in the lower part, which is the region where the vibration member 176 is disposed, than in the upper part.

加振部材１７６は、外周側に向かって下傾するテーパ形状を有していると共に、外周縁部には上方に向かって突出する筒状ガイド部１８０が一体形成されている。また、加振部材１７６の径方向中央部分には、仕切部材本体１７４に外周縁部を支持された板ばね１８２の中央部分が重ね合わされていると共に、駆動軸１８４が取り付けられており、板ばね１８２の弾性によって加振部材１７６と駆動軸１８４が仕切部材本体１７４に対して軸方向で弾性的に位置決めされている。駆動軸１８４は、マウント中心軸上を直線的に延びるロッド形状とされており、軸方向上端にかしめ突起１８６が一体形成されて、加振部材１７６および板ばね１８２に固定されていると共に、軸方向中間部分に固着部５８が一体形成されて可撓性膜３２の径方向中央部分に固着されている。また、駆動軸１８４の下端部には、雄ねじ部６０が設けられており、外周面にねじ山が刻設されている。なお、板ばね１８２には、厚さ方向に貫通する孔が形成されており、板ばねを挟んだ軸方向両側が相互に連通されている。   The vibration member 176 has a tapered shape that inclines downward toward the outer peripheral side, and a cylindrical guide portion 180 that protrudes upward is integrally formed at the outer peripheral edge portion. In addition, a central portion of a leaf spring 182 supported on the outer peripheral edge portion of the partition member main body 174 is overlapped with a central portion of the vibration member 176 in the radial direction, and a drive shaft 184 is attached to the leaf spring. The vibration member 176 and the drive shaft 184 are elastically positioned in the axial direction with respect to the partition member main body 174 by the elasticity of 182. The drive shaft 184 has a rod shape extending linearly on the mount center axis. A caulking projection 186 is integrally formed at the upper end in the axial direction, and is fixed to the vibration member 176 and the leaf spring 182. A fixing portion 58 is integrally formed in the middle portion in the direction and fixed to the central portion in the radial direction of the flexible film 32. Further, a male screw portion 60 is provided at the lower end portion of the drive shaft 184, and a screw thread is engraved on the outer peripheral surface. The leaf spring 182 is formed with a hole penetrating in the thickness direction, and both axial sides sandwiching the leaf spring are communicated with each other.

このような構造の仕切部材１７２が流体封入領域３８に配設されて、外周縁部を第二の取付部材１６６に支持されることにより、流体封入領域３８が上下に二分されて、受圧室６８と平衡室７０が形成されている。また、仕切部材１７２には、上方から円板形状の蓋板金具１８８が重ね合わされており、蓋板金具１８８によって受圧室６８が上下に二分されて振動入力室８６と加振室８８が形成されている。なお、蓋板金具１８８には、複数の透孔１９０が貫通形成されており、振動入力室８６と加振室８８が透孔１９０を通じて連通されている。   The partition member 172 having such a structure is disposed in the fluid sealing region 38 and the outer peripheral edge portion is supported by the second mounting member 166, whereby the fluid sealing region 38 is divided into two parts in the vertical direction, and the pressure receiving chamber 68. An equilibrium chamber 70 is formed. In addition, a disc-shaped cover plate fitting 188 is superimposed on the partition member 172 from above, and the pressure receiving chamber 68 is divided into two parts by the cover plate fitting 188 to form a vibration input chamber 86 and an excitation chamber 88. ing. Note that a plurality of through holes 190 are formed through the lid plate metal 188, and the vibration input chamber 86 and the excitation chamber 88 communicate with each other through the through holes 190.

また、マウント本体１６２の下方には、電磁式アクチュエータ１６４が配設されている。電磁式アクチュエータ１６４は、固定子１９２と可動子１９４を有しており、固定子１９２は、コイル１０６の周囲に上下のヨーク金具１０８，１１０を組み付けると共に、それらコイル１０６と上下のヨーク金具１０８，１１０をハウジング１１２に固定した構造を有している。一方、可動子１９４は、強磁性材料で形成された略円筒形状の部材であって、上端部に径方向内方に向かって突出する支持突部１９６が一体形成されていると共に、軸方向中間部分に径方向内方に向かって開口する支持溝１９８が形成されている。そして、可動子１９４は、上ヨーク金具１０８の中心孔に配設されたガイドスリーブ１２０に挿入されて、固定子１９２に対する軸方向での相対変位を許容された状態で配設されている。   An electromagnetic actuator 164 is disposed below the mount body 162. The electromagnetic actuator 164 includes a stator 192 and a mover 194. The stator 192 is assembled with upper and lower yoke fittings 108 and 110 around the coil 106, and the coil 106 and upper and lower yoke fittings 108, 110 is fixed to the housing 112. On the other hand, the mover 194 is a substantially cylindrical member made of a ferromagnetic material, and is integrally formed with a support protrusion 196 that protrudes inward in the radial direction at the upper end, and in the middle in the axial direction. A support groove 198 is formed in the portion and opens radially inward. The movable element 194 is inserted into the guide sleeve 120 disposed in the central hole of the upper yoke fitting 108 and is disposed in a state in which relative displacement in the axial direction with respect to the stator 192 is allowed.

このような構造の電磁式アクチュエータ１６４は、マウント本体１６２に対して取り付けられている。即ち、固定子１９２のハウジング１１２が第二の取付部材１６６のかしめ片１６８で支持されると共に、可動子１９４が駆動軸１８４の下端部に取り付けられることにより、電磁式アクチュエータ１６４がマウント本体１６２に対して取り付けられている。かかる取付状態において、コイル１０６への通電によって可動子１９４に及ぼされる加振力が、駆動軸１８４を介して加振部材１７６に伝達されるようになっている。なお、本実施形態では、コイル１０６への通電が停止されると、駆動軸１８４の上端に取り付けられた板ばね１８２の復元力を利用して可動子１９４が初期位置に復帰するようになっている。   The electromagnetic actuator 164 having such a structure is attached to the mount body 162. That is, the housing 112 of the stator 192 is supported by the caulking piece 168 of the second mounting member 166, and the movable element 194 is attached to the lower end portion of the drive shaft 184, so that the electromagnetic actuator 164 is attached to the mount body 162. It is attached to. In this attached state, the excitation force exerted on the mover 194 by energization of the coil 106 is transmitted to the excitation member 176 via the drive shaft 184. In the present embodiment, when energization of the coil 106 is stopped, the movable element 194 returns to the initial position using the restoring force of the leaf spring 182 attached to the upper end of the drive shaft 184. Yes.

そこにおいて、駆動軸１８４と可動子１９４の連結部分には、傾斜許容手段および変位許容手段としての連結手段２００が設けられている。連結手段２００は、図４に示されているように、駆動軸１８４に取り付けられるナット２０２と、可動子１９４に取り付けられる第一の環状連結部材２０４および第二の環状連結部材２０６を含んでいる。   Here, a connecting means 200 as an inclination allowing means and a displacement allowing means is provided at a connecting portion between the drive shaft 184 and the movable element 194. As shown in FIG. 4, the connecting means 200 includes a nut 202 attached to the drive shaft 184, a first annular connecting member 204 and a second annular connecting member 206 attached to the mover 194. .

ナット２０２は、環状とされた可動子１９４の支持突部１９６の内径寸法よりも小径の略円筒形状を有しており、内周面の略全体にねじ山が刻設されている。また、ナット２０２の軸方向中間部分には、径方向外方に突出する固定部としての膨出部２０８が一体形成されており、膨出部２０８の外周面が略球面形状の第一の当接面２１０とされている。   The nut 202 has a substantially cylindrical shape having a smaller diameter than the inner diameter of the support protrusion 196 of the annular mover 194, and a thread is engraved on substantially the entire inner peripheral surface. In addition, a bulging portion 208 as a fixed portion protruding radially outward is integrally formed at the axially intermediate portion of the nut 202, and the outer peripheral surface of the bulging portion 208 is a first contact having a substantially spherical shape. It is a contact surface 210.

一方、第一の環状連結部材２０４は、略リング形状を有しており、可動子１９４の中心孔よりも小さく且つ可動子１９４の支持突部１９６の内径寸法よりも大きい外径寸法で形成されている。また、第一の環状連結部材２０４には、上端面に開口して径方向に延びる通気溝２１２が周上の複数箇所に形成されていると共に、下端部に径方向外側に向かって突出する係止部２１４が一体形成されている。   On the other hand, the first annular connecting member 204 has a substantially ring shape, and is formed with an outer diameter that is smaller than the center hole of the mover 194 and larger than the inner diameter of the support protrusion 196 of the mover 194. ing. In addition, the first annular connecting member 204 is formed with a plurality of vent grooves 212 that are open on the upper end surface and extend in the radial direction, and protrudes radially outward at the lower end portion. A stop 214 is integrally formed.

また、第一の環状連結部材２０４の内周面には、第二の当接面としての第二の上当接面２１６が形成されている。第二の上当接面２１６は、膨出部２０８の第一の当接面２１０に対応する凹状の湾曲面であって、第一の環状連結部材２０４の軸方向中間部分から下端に至る領域に全周に亘って形成されている。   A second upper contact surface 216 as a second contact surface is formed on the inner peripheral surface of the first annular connecting member 204. The second upper abutting surface 216 is a concave curved surface corresponding to the first abutting surface 210 of the bulging portion 208 and is in a region extending from the axially intermediate portion of the first annular connecting member 204 to the lower end. It is formed over the entire circumference.

第二の環状連結部材２０６は、第一の環状連結部材２０４と同様の略リング形状とされており、外径寸法が第一の環状連結部材２０４よりも僅かに大きくされている。また、第二の環状連結部材２０６には、下端面に開口して径方向に延びる通気溝２１８が周上の複数箇所に形成されている。更に、第二の環状連結部材２０６は、外周面が段付形状とされており、段差よりも上側部分が下側部分よりも小径の圧入部２２０とされている。   The second annular connecting member 206 has a substantially ring shape similar to the first annular connecting member 204, and has an outer diameter slightly larger than that of the first annular connecting member 204. Further, the second annular connecting member 206 is formed with a plurality of ventilation grooves 218 that open at the lower end surface and extend in the radial direction at a plurality of locations on the circumference. Further, the outer peripheral surface of the second annular connecting member 206 has a stepped shape, and the upper part of the step is a press-fit part 220 having a smaller diameter than the lower part.

また、第二の環状連結部材２０６の内周面には、第二の当接面としての第二の下当接面２２２が形成されている。第二の下当接面２２２は、膨出部２０８の第一の当接面２１０に対応する凹状の湾曲面であって、第二の環状連結部材２０６の軸方向中間部分から上端に至る領域に全周に亘って形成されている。   A second lower contact surface 222 as a second contact surface is formed on the inner peripheral surface of the second annular coupling member 206. The second lower contact surface 222 is a concave curved surface corresponding to the first contact surface 210 of the bulging portion 208, and is a region extending from the axially intermediate portion of the second annular coupling member 206 to the upper end. Formed over the entire circumference.

これら第一の環状連結部材２０４と第二の環状連結部材２０６は、ナット２０２に対して上下両側から外挿されて、ナット２０２の膨出部２０８を軸方向に挟み込むように配設されている。そして、第一，第二の環状連結部材２０４，２０６は、ナット２０２への外挿状態で仮連結手段としての仮連結部材２２４によって相互に仮連結されている。   The first annular coupling member 204 and the second annular coupling member 206 are arranged so as to be inserted from the upper and lower sides of the nut 202 so as to sandwich the bulging portion 208 of the nut 202 in the axial direction. . The first and second annular connecting members 204 and 206 are temporarily connected to each other by a temporary connecting member 224 as temporary connecting means in an extrapolated state to the nut 202.

仮連結部材２２４は、略円筒形状とされた筒状部２２６の上端において径方向内方に突出する係止突部２２８が一体形成された構造を有している。そして、第一，第二の環状連結部材２０４，２０６がナット２０２に外挿された後、第一の環状連結部材２０４が仮連結部材２２４の筒状部２２６に対して下方から挿入されると共に、第二の環状連結部材２０６の圧入部２２０が仮連結部材２２４の筒状部２２６に対して下方から圧入固定される。これにより、第一の環状連結部材２０４と第二の環状連結部材２０６は、軸方向で所定量の相対変位を許容された状態で分離不能に仮連結されて、ナット２０２に対して脱落を防止された状態で装着される。なお、筒状部２２６の下端の内周面は、下方に行くに従って拡径するテーパ面とされており、案内作用によって第二の環状連結部材２０６に対して外嵌固定し易くなっている。また、第二の環状連結部材２０６の外周面に段差が設けられていることにより、第二の環状連結部材２０６が仮連結部材２２４の下端の所定位置に位置決めされるようになっている。   The temporary connecting member 224 has a structure in which a locking projection 228 that protrudes inward in the radial direction is integrally formed at the upper end of a cylindrical portion 226 having a substantially cylindrical shape. Then, after the first and second annular connecting members 204 and 206 are extrapolated to the nut 202, the first annular connecting member 204 is inserted into the cylindrical portion 226 of the temporary connecting member 224 from below. The press-fit portion 220 of the second annular connecting member 206 is press-fitted and fixed to the cylindrical portion 226 of the temporary connecting member 224 from below. As a result, the first annular coupling member 204 and the second annular coupling member 206 are temporarily coupled in a non-separable state in a state where a predetermined amount of relative displacement is allowed in the axial direction to prevent the nut 202 from falling off. It is mounted in the state that was done. In addition, the inner peripheral surface of the lower end of the cylindrical part 226 is a tapered surface that increases in diameter as it goes downward, and is easily fitted and fixed to the second annular connecting member 206 by a guiding action. Further, by providing a step on the outer peripheral surface of the second annular connecting member 206, the second annular connecting member 206 is positioned at a predetermined position at the lower end of the temporary connecting member 224.

また、仮連結された第一の環状連結部材２０４と第二の環状連結部材２０６は、ナット２０２に上下両側から挟み込むように配設された状態で可動子１９４に取り付けられている。即ち、第一，第二の環状連結部材２０４，２０６およびナット２０２は、可動子１９４の中心孔内に配置されており、第一の環状連結部材２０４が支持突部１９６に対して下方から重ね合わされている。そして、可動子１９４の中心孔に対して下方から環状とされた固定手段としての固定リング２３２が圧入されて、第二の環状連結部材２０６に対して下方から重ね合わされることで、第一，第二の環状連結部材２０４，２０６が可動子１９４に対して軸方向で位置決めされている。   Further, the temporarily connected first annular connecting member 204 and second annular connecting member 206 are attached to the mover 194 in a state where they are disposed so as to be sandwiched between the upper and lower sides of the nut 202. That is, the first and second annular coupling members 204 and 206 and the nut 202 are disposed in the center hole of the movable element 194, and the first annular coupling member 204 overlaps the support protrusion 196 from below. Has been. Then, a fixing ring 232 as a fixing means that is annularly formed from the lower side with respect to the center hole of the movable element 194 is press-fitted and overlapped with the second annular coupling member 206 from the lower side. The second annular connecting members 204 and 206 are positioned in the axial direction with respect to the mover 194.

また、この段階では、固定リング２３２の圧入量が調節されることで、第一，第二の環状連結部材２０４，２０６が可動子１９４に対して軸直角方向での相対変位を許容された状態に仮連結されている。そして、ナット２０２が駆動軸１８４の下端に設けられた雄ねじ部６０に螺着されて、第一，第二の環状連結部材２０４，２０６の可動子１９４に対する軸直角方向の位置と、ナット２０２の第一，第二の環状連結部材２０４，２０６に対する傾斜角が、駆動軸１８４と可動子１９４の相対的な位置関係に応じて自動的に調節されることにより、駆動軸１８４と可動子１９４の相対的な傾斜と軸直角方向での位置ずれが許容されている。なお、ロックボルト２３０によってナット２０２の駆動軸１８４からの抜けが防止されている。   At this stage, the amount of press-fitting of the fixing ring 232 is adjusted so that the first and second annular coupling members 204 and 206 are allowed to be displaced relative to the mover 194 in the direction perpendicular to the axis. Are temporarily connected. Then, the nut 202 is screwed to the male screw portion 60 provided at the lower end of the drive shaft 184, and the position of the first and second annular connecting members 204, 206 in the direction perpendicular to the axis with respect to the mover 194, The inclination angle with respect to the first and second annular connecting members 204 and 206 is automatically adjusted according to the relative positional relationship between the drive shaft 184 and the mover 194, so that the drive shaft 184 and the mover 194 are moved. Relative tilt and misalignment in the direction perpendicular to the axis are allowed. Note that the lock bolt 230 prevents the nut 202 from coming off from the drive shaft 184.

さらに、駆動軸１８４と可動子１９４の仮連結状態から固定リング２３２を可動子１９４に対して軸方向で更に押し込むことにより、駆動軸１８４と可動子１９４が相互に固定される。即ち、第一の環状連結部材２０４と第二の環状連結部材２０６が軸方向で相対的に接近変位させられると、第一の環状連結部材２０４に設けられた第二の上当接面２１６の第一の当接面２１０に対する当接圧と、第二の環状連結部材２０６に設けられた第二の下当接面２２２の第一の当接面２１０に対する当接圧が、何れも充分に大きくなる。その結果、ナット２０２の第一，第二の環状連結部材２０４，２０６に対する摺動と、第一，第二の環状連結部材２０４，２０６の可動子１９４に対する軸直角方向への相対変位が何れも阻止されて、駆動軸１８４と可動子１９４が相互に固定される。なお、固定リング２３２の軸方向への押込みによって駆動軸１８４と可動子１９４が固定された状態では、第一の環状連結部材２０４と第二の環状連結部材２０６が軸方向で接近変位させられて、仮連結部材２２４の係止突部２２８が第一の環状連結部材２０４の係止部２１４に対して軸方向上方に離隔させられている。   Further, the drive shaft 184 and the mover 194 are fixed to each other by further pushing the fixing ring 232 in the axial direction from the temporarily connected state of the drive shaft 184 and the mover 194. That is, when the first annular coupling member 204 and the second annular coupling member 206 are relatively displaced in the axial direction, the second upper abutment surface 216 provided on the first annular coupling member 204 has a first shape. The contact pressure with respect to the first contact surface 210 and the contact pressure with respect to the first contact surface 210 of the second lower contact surface 222 provided on the second annular coupling member 206 are both sufficiently large. Become. As a result, the sliding of the nut 202 with respect to the first and second annular coupling members 204 and 206 and the relative displacement of the first and second annular coupling members 204 and 206 in the direction perpendicular to the axis with respect to the mover 194 are both. As a result, the drive shaft 184 and the movable element 194 are fixed to each other. When the drive shaft 184 and the mover 194 are fixed by pushing the fixing ring 232 in the axial direction, the first annular connecting member 204 and the second annular connecting member 206 are displaced in the axial direction. The locking projection 228 of the temporary connecting member 224 is spaced apart upward in the axial direction with respect to the locking portion 214 of the first annular connecting member 204.

このような構造とされたエンジンマウント１６０では、駆動軸１８４と可動子１９４の連結に先んじて、第一の環状連結部材２０４と第二の環状連結部材２０６が駆動軸１８４側の部材であるナット２０２に対して装着されていると共に、仮連結部材２２４によって脱落を防止されている。それ故、第一，第二の環状連結部材２０４，２０６が駆動軸１８４と可動子１９４の連結部分に容易に配設され得て、マウント本体１６２と電磁式アクチュエータ１６４の組付け作業を容易に行うことが出来る。   In the engine mount 160 having such a structure, the first annular connecting member 204 and the second annular connecting member 206 are nuts on the drive shaft 184 side prior to the connection between the drive shaft 184 and the mover 194. It is attached to 202 and is prevented from falling off by the temporary connecting member 224. Therefore, the first and second annular connecting members 204 and 206 can be easily disposed at the connecting portion of the drive shaft 184 and the movable element 194, and the assembling work of the mount body 162 and the electromagnetic actuator 164 is facilitated. Can be done.

また、第一，第二の環状連結部材２０４，２０６がナット２０２に対して外挿されていることから、それら第一，第二の環状連結部材２０４，２０６の取付けがより容易である。しかも、第一，第二の環状連結部材２０４，２０６を予め脱落不能に装着されたナット２０２を駆動軸１８４に螺着することにより、それら第一，第二の環状連結部材２０４，２０６を駆動軸１８４に対して簡単に取り付けることが出来る。   In addition, since the first and second annular coupling members 204 and 206 are extrapolated with respect to the nut 202, the first and second annular coupling members 204 and 206 can be attached more easily. In addition, the first and second annular coupling members 204 and 206 are screwed onto the drive shaft 184 in advance so that the first and second annular coupling members 204 and 206 are attached to the drive shaft 184, thereby driving the first and second annular coupling members 204 and 206. It can be easily attached to the shaft 184.

また、仮連結部材２２４が第一，第二の環状連結部材２０４，２０６の外周側に配設されることから、仮連結部材２２４のそれら第一，第二の環状連結部材２０４，２０６に対する取付けが容易である。しかも、仮連結部材２２４に圧入固定される第二の環状連結部材２０６は、仮連結部材２２４に圧入される上側部分が下側部分よりも小径の圧入部２２０とされていることから、駆動軸１８４と可動子１９４の連結部分において仮連結部材２２４の装着による大径化を防ぐことが出来て、エンジンマウント１６０の小型化が図られる。   Further, since the temporary connecting member 224 is disposed on the outer peripheral side of the first and second annular connecting members 204 and 206, the temporary connecting member 224 is attached to the first and second annular connecting members 204 and 206. Is easy. Moreover, the second annular connecting member 206 press-fitted and fixed to the temporary connecting member 224 has an upper portion pressed into the temporary connecting member 224 as a press-fit portion 220 having a smaller diameter than the lower portion. An increase in diameter due to the provision of the temporary connecting member 224 can be prevented at the connecting portion between the 184 and the mover 194, and the engine mount 160 can be downsized.

以上、本発明の実施形態について詳述してきたが、本発明はその具体的な記載によって限定されない。例えば、第一の当接面１３６，１３８と第二の当接面１４０，１４６は、必ずしも下方に向かって凸の湾曲面とされていなくても良く、例えばそれら第一の当接面および第二の当接面が上方に向かって凸の湾曲面とされていても良い。このように、円弧状の縦断面形状を有する第一の当接面および第二の当接面の曲率中心は、中心軸上で加振部材４８側に位置していても良いし、加振部材４８とは反対側に位置していても良い。   As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, the first contact surfaces 136 and 138 and the second contact surfaces 140 and 146 do not necessarily have to be curved surfaces that are convex downward. The second contact surface may be a curved surface convex upward. As described above, the centers of curvature of the first contact surface and the second contact surface having an arcuate vertical cross-sectional shape may be located on the vibration member 48 side on the central axis, The member 48 may be located on the opposite side.

さらに、第一の当接面および第二の当接面の曲率中心は、一対の環状連結部材の軸方向中間に位置していても良く、第一の上当接面１３６および第二の上当接面１４０が上方に凸の湾曲面とされていると共に、第一の下当接面１３８および第二の下当接面１４６が下方に凸の湾曲面とされている構造も採用可能である。これによれば、駆動軸と可動子の連結部分において軸直角方向での小型化が図られ得る。   Furthermore, the center of curvature of the first contact surface and the second contact surface may be located in the middle in the axial direction of the pair of annular coupling members, and the first upper contact surface 136 and the second upper contact surface. It is also possible to adopt a structure in which the surface 140 is an upward convex curved surface, and the first lower contact surface 138 and the second lower contact surface 146 are downward convex curved surfaces. Accordingly, it is possible to reduce the size of the connecting portion between the drive shaft and the mover in the direction perpendicular to the axis.

また、第一の当接面および第二の当接面は、例えば軸直角方向に広がる平面であっても良く、このような構造においても駆動軸と可動子の軸直角方向への相対変位が許容される。更に、第一の当接面および第二の当接面が平面形状とされている場合にも、一対の環状連結部材が駆動軸と可動子の連結部分に介装されていることで、駆動軸と可動子の軸方向投影における当接面積が、それら第一，第二の環状連結部材によって大きく確保されて、駆動軸と可動子が強固に固定される。   Further, the first contact surface and the second contact surface may be flat surfaces extending in a direction perpendicular to the axis, for example, and even in such a structure, the relative displacement of the drive shaft and the mover in the direction perpendicular to the axis is also possible. Permissible. Furthermore, even when the first contact surface and the second contact surface have a planar shape, the pair of annular connection members are interposed in the connection portion between the drive shaft and the mover, so that the drive The contact area in the axial projection of the shaft and the mover is largely secured by the first and second annular connecting members, and the drive shaft and the mover are firmly fixed.

また、環状連結部材は、必ずしも第二の当接面を有していなくても良い。例えば、環状連結部材は、駆動軸と可動子の軸方向投影における当接面積を大きく確保して駆動軸と可動子を強固に連結する等の目的で、第二の当接面を持たない平板形状の平座金とされていても良い。更に、例えば、環状連結部材は、ナットの緩みを防止して駆動軸と可動子を安定して連結状態に保持するためのばね座金とされていても良い。なお、上記の如き第二の当接面を持たない環状連結部材では、表面に粗面加工を施してナットの緩みを防止することも出来る。   Further, the annular connecting member does not necessarily have the second contact surface. For example, the annular connecting member is a flat plate having no second contact surface for the purpose of securing a large contact area in the axial projection of the drive shaft and the mover to firmly connect the drive shaft and the mover. It may be a flat washer. Further, for example, the annular connecting member may be a spring washer for preventing the nut from loosening and stably holding the drive shaft and the mover in a connected state. In addition, in the annular connecting member having no second contact surface as described above, the surface can be roughened to prevent the nut from loosening.

また、連結手段における係止突部１５６の形成位置は、必ずしも筒状部１５４における加振部材４８側の端部（上端部）ではなくても良い。具体的には、例えば、筒状部１５４における可動子１０４側の端部（下端部）に係止突部１５６が形成されており、筒状部１５４における加振部材４８側の端部が、加振部材４８側に配設された環状連結部材に対して圧入固定されるようになっていても良い。更に、例えば、係止突部は、筒状部１５４の軸方向中間に形成されていても良い。   Further, the formation position of the locking projection 156 in the connecting means is not necessarily the end (upper end) on the vibration member 48 side in the cylindrical portion 154. Specifically, for example, a locking projection 156 is formed at the end (lower end) of the cylindrical portion 154 on the movable element 104 side, and the end of the cylindrical portion 154 on the vibration member 48 side is You may press-fit and fix with respect to the annular connection member arrange | positioned at the vibration member 48 side. Furthermore, for example, the locking projection may be formed in the middle of the cylindrical portion 154 in the axial direction.

また、第一の実施形態に示されたマウント本体１２と第二の実施形態に示された電磁式アクチュエータ１６４とを組み合わせて、本発明に従う構造のエンジンマウントを形成することも出来る。なお、第二の実施形態に示されたマウント本体１６２と第一の実施形態に示された電磁式アクチュエータ１４とを組み合わせても良いことは、言うまでもない。   Further, the mount body 12 shown in the first embodiment and the electromagnetic actuator 164 shown in the second embodiment can be combined to form an engine mount having a structure according to the present invention. Needless to say, the mount main body 162 shown in the second embodiment and the electromagnetic actuator 14 shown in the first embodiment may be combined.

また、本発明の適用範囲は、自動車用に限定されるものではなく、鉄道用車両や産業用車両等に用いられる流体封入式能動型防振装置にも適用可能である。加えて、本発明は、エンジンマウントのみに適用されるものではなく、例えばボデーマウントやサブフレームマウント等、各種用途に用いられる流体封入式能動型防振装置に対して好適に適用され得る。   The scope of application of the present invention is not limited to automobiles, but can be applied to fluid-filled active vibration isolator used for railway vehicles, industrial vehicles, and the like. In addition, the present invention is not only applied to the engine mount, but can be suitably applied to a fluid-filled active vibration isolator used for various purposes such as a body mount and a subframe mount.

１０，１６０：エンジンマウント（流体封入式能動型防振装置）、１２，１６２：マウント本体（防振装置本体）、１４，１６４：電磁式アクチュエータ、１６：第一の取付部材、１８，１６６：第二の取付部材、２０：本体ゴム弾性体、４８，１７６：加振部材、５４：駆動軸、６８：受圧室、１０２，１９２：固定子、１０４，１９４：可動子、１０６：コイル、１２２：支持突部（固定部）、１２６，２００：連結手段（傾斜許容手段、変位許容手段）、１３０：ナット（固定手段）、１３２，２０４：第一の環状連結部材（環状連結部材）、１３４，２０６：第二の環状連結部材（環状連結部材）、１３６：第一の上当接面（第一の当接面）、１３８：第一の下当接面（第一の当接面）、１４０，２１６：第二の上当接面（第二の当接面）、１４６，２２２：第二の下当接面（第二の当接面）、１５２，２２４：仮連結部材（仮連結手段）、１５４，２２６：筒状部、１５６，２２８：係止突部、２０２：ナット、２０８：膨出部（固定部）、２１０：第一の当接面、２３２：固定リング（固定手段） 10, 160: Engine mount (fluid-filled active vibration isolator), 12, 162: Mount main body (vibration isolator main body), 14, 164: Electromagnetic actuator, 16: First mounting member, 18, 166: Second mounting member, 20: rubber elastic body, 48, 176: vibration member, 54: drive shaft, 68: pressure receiving chamber, 102, 192: stator, 104, 194: mover, 106: coil, 122 : Support protrusion (fixed portion), 126, 200: connecting means (tilting permitting means, displacement allowing means), 130: nut (fixing means), 132, 204: first annular connecting member (annular connecting member), 134 206: second annular connecting member (annular connecting member), 136: first upper contact surface (first contact surface), 138: first lower contact surface (first contact surface), 140, 216: Second upper contact surface (second contact surface) Surface), 146, 222: second lower contact surface (second contact surface), 152, 224: temporary connection member (temporary connection means), 154, 226: cylindrical portion, 156, 228: locking Projection, 202: nut, 208: bulging part (fixing part), 210: first contact surface, 232: fixing ring (fixing means)

Claims (6)

第一の取付部材と第二の取付部材を本体ゴム弾性体によって連結すると共に壁部の一部が該本体ゴム弾性体で構成されて非圧縮性流体を封入された受圧室を形成することにより防振装置本体が形成されている一方、該受圧室の壁部の別の一部が加振部材で構成されており、該加振部材に駆動力を及ぼして加振変位させるアクチュエータが該加振部材を挟んで該受圧室と反対側に配設されて該防振装置本体に取り付けられている流体封入式能動型防振装置において、
前記アクチュエータとして、前記第二の取付部材に固定されるコイルを含んで構成された固定子と、該コイルへの通電によって該固定子に対して直線的に相対変位可能とされた可動子とを備えた電磁式アクチュエータが採用されていると共に、
前記加振部材から突設されて該可動子に挿通される駆動軸に対して外挿装着されて、該駆動軸と該可動子の連結部分において該駆動軸と該可動子の何れか一方に形成された固定部を軸方向に挟んで一対の環状連結部材が配設されており、
該一対の環状連結部材を該固定部に対して軸方向に押圧して該駆動軸を該可動子に対して固定する固定手段が設けられている一方、
該固定手段による固定に先立って該一対の環状連結部材を相互に連結して該固定部からの脱落を防止する仮連結手段が設けられていることを特徴とする流体封入式能動型防振装置。 By connecting the first mounting member and the second mounting member by the main rubber elastic body and forming a pressure receiving chamber in which a part of the wall portion is configured by the main rubber elastic body and in which an incompressible fluid is enclosed. While the vibration isolator body is formed, another part of the wall portion of the pressure receiving chamber is composed of a vibration member, and an actuator that applies a driving force to the vibration member to displace the vibration is included in the vibration isolation member. In the fluid-filled active vibration isolator disposed on the opposite side of the pressure receiving chamber with the vibration member interposed therebetween and attached to the vibration isolator main body,
As the actuator, a stator including a coil fixed to the second mounting member, and a mover that is linearly displaceable relative to the stator by energizing the coil. The equipped electromagnetic actuator is adopted,
A drive shaft that protrudes from the vibration member and is inserted through the mover is attached to the drive shaft and is attached to either the drive shaft or the mover at a connecting portion of the drive shaft and the mover. A pair of annular coupling members are disposed with the formed fixing portion sandwiched in the axial direction,
While a fixing means is provided for pressing the pair of annular coupling members in the axial direction against the fixing portion to fix the drive shaft to the mover,
A fluid-filled active vibration isolator comprising temporary connection means for connecting the pair of annular connecting members to each other prior to fixing by the fixing means to prevent them from falling off the fixing portion. . 前記駆動軸と前記可動子の何れか他方に第一の当接面が形成されていると共に、該第一の当接面に対して重ね合わされる第二の当接面が前記一対の環状連結部材に対してそれぞれ形成されており、それら第一の当接面と第二の当接面によって該駆動軸と該可動子の相対的な傾斜を許容する傾斜許容手段が構成されている請求項１に記載の流体封入式能動型防振装置。   A first contact surface is formed on the other of the drive shaft and the mover, and a second contact surface overlapped with the first contact surface is the pair of annular links. An inclination allowing means that is formed with respect to each member and that allows relative inclination of the drive shaft and the movable element is constituted by the first contact surface and the second contact surface. 2. A fluid-filled active vibration isolator according to 1. 前記駆動軸と前記可動子の軸直角方向への相対変位を許容する変位許容手段が設けられている請求項１又は２に記載の流体封入式能動型防振装置。   The fluid-filled active vibration isolator according to claim 1, further comprising a displacement permissive unit that allows relative displacement of the drive shaft and the mover in a direction perpendicular to the axis. 前記固定部として筒状とされた前記可動子の内周側に突出する支持突部が設けられており、前記一対の環状連結部材が該支持突部を軸方向に挟み込むことで該可動子に組み付けられる一方、前記仮連結手段が筒状部を有していると共に、該筒状部の軸方向一方の端部に径方向外側に向かって突出する係止突部が形成されており、該仮連結手段の該筒状部が一方の該環状連結部材の中心孔に遊挿されて該係止突部が該一方の環状連結部材の内周縁部に係止されていると共に、該仮連結手段の軸方向他方の端部が他方の該環状連結部材の中心孔に挿入されて該他方の環状連結部材に固定されている請求項１〜３の何れか１項に記載の流体封入式能動型防振装置。   A support protrusion that protrudes toward the inner peripheral side of the movable element that is cylindrical as the fixed part is provided, and the pair of annular connecting members sandwich the support protrusion in the axial direction so that the movable element On the other hand, the temporary connecting means has a cylindrical portion, and a locking projection that protrudes radially outward is formed at one axial end of the cylindrical portion, The cylindrical portion of the temporary connecting means is loosely inserted into the center hole of one of the annular connecting members, and the locking projection is locked to the inner peripheral edge of the one annular connecting member. The fluid-filled active according to any one of claims 1 to 3, wherein the other end in the axial direction of the means is inserted into the center hole of the other annular connecting member and fixed to the other annular connecting member. Mold vibration isolator. 前記固定部として前記駆動軸に対して軸直角方向外側に膨出する膨出部が設けられており、前記一対の環状連結部材が該膨出部を軸方向に挟み込むことで該駆動軸に組み付けられる一方、前記仮連結手段が筒状部を有していると共に、該筒状部の軸方向一方の端部に径方向内側に向かって突出する係止突部が形成されており、一方の該環状連結部材が該仮連結手段の該筒状部の中心孔に遊挿されて該係止突部が該一方の環状連結部材の外周縁部に係止されると共に、他方の該環状連結部材が該仮連結手段の該筒状部の中心孔における軸方向他方の端部に挿入されて該筒状部に固定されている請求項１〜３の何れか１項に記載の流体封入式能動型防振装置。   A bulging portion that bulges outward in the direction perpendicular to the axis with respect to the drive shaft is provided as the fixed portion, and the pair of annular connecting members are assembled to the drive shaft by sandwiching the bulged portion in the axial direction. On the other hand, the temporary connecting means has a cylindrical portion, and a locking projection that protrudes radially inward is formed at one axial end of the cylindrical portion. The annular connecting member is loosely inserted into the central hole of the cylindrical portion of the temporary connecting means, and the locking projection is locked to the outer peripheral edge of the one annular connecting member, while the other annular connection is The fluid-filled type according to any one of claims 1 to 3, wherein a member is inserted into the other axial end of the central hole of the cylindrical portion of the temporary connecting means and fixed to the cylindrical portion. Active vibration isolator. 請求項１〜５の何れか１項に記載された流体封入式能動型防振装置の製造方法であって、
前記一対の環状連結部材を前記固定部を軸方向に挟んで配設する工程と、
該一対の環状連結部材を前記仮連結手段で相互に連結して該固定部からの脱落を防止する工程と、
該仮連結手段で連結された該一対の環状連結部材を前記固定手段によって該固定部に対して軸方向に押圧して該駆動軸を該可動子に対して固定する工程と
を有することを特徴とする流体封入式能動型防振装置の製造方法。 A method for manufacturing a fluid-filled active vibration isolator according to any one of claims 1 to 5,
Disposing the pair of annular connecting members with the fixing portion sandwiched in the axial direction;
Connecting the pair of annular connecting members to each other by the temporary connecting means to prevent the fixing parts from dropping off;
A step of fixing the drive shaft to the movable element by pressing the pair of annular connecting members connected by the temporary connecting means in the axial direction against the fixed portion by the fixing means. A method for manufacturing a fluid-filled active vibration isolator.
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