JP6543144B2 - Vibration control device - Google Patents

Vibration control device Download PDF

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JP6543144B2
JP6543144B2 JP2015176942A JP2015176942A JP6543144B2 JP 6543144 B2 JP6543144 B2 JP 6543144B2 JP 2015176942 A JP2015176942 A JP 2015176942A JP 2015176942 A JP2015176942 A JP 2015176942A JP 6543144 B2 JP6543144 B2 JP 6543144B2
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vibration
axial direction
attachment member
flange portion
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JP2017053412A (en
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佐藤　俊介
俊介 佐藤
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Bridgestone Corp
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Description

本発明は、防振装置に関する。   The present invention relates to a vibration isolation device.

従来の防振装置には、内側取付部材（内筒）、弾性体及び外側取付部材（外筒）によって形成された液室内にシリコーンオイル等の液体を封入した防振装置であって、前記内側取付部材に、前記液室内に突出する上下一対のフランジ部（ストッパ）を設けるとともに、前記液室内に突出する左右一対のフランジ部（抵抗板）を固着させたものがある（例えば、特許文献１参照）。特許文献１の技術は、前記上下一対のフランジ部が、軸方向の振動を減衰させるとともに当該軸方向と直交する軸直方向（上下方向）の過大な変位を抑制し、併せて、前記左右一対のフランジ部が上下方向の振動を減衰させる。   A conventional vibration damping device is a vibration damping device in which a liquid such as silicone oil is sealed in a liquid chamber formed by an inner mounting member (inner cylinder), an elastic body and an outer mounting member (outer cylinder). There is a mounting member provided with a pair of upper and lower flanges (stoppers) projecting into the liquid chamber, and a pair of left and right flanges (resistance plates) projecting into the liquid chamber are fixed (for example, Patent Document 1) reference). According to the technique of Patent Document 1, the upper and lower flange portions damp axial vibration and suppress excessive displacement in the axial direction (vertical direction) orthogonal to the axial direction, and additionally, the left and right pair The flange portion of the shaft damps vertical vibration.

特開平６−２９４４３９号公報Unexamined-Japanese-Patent No. 6-294439

しかしながら、特許文献１の技術は、軸直方向における減衰に改善の余地があった。   However, the technique of Patent Document 1 has room for improvement in attenuation in the axial direction.

本発明の目的は、軸方向の振動を減衰させつつ軸直方向の振動も大きく減衰させることが可能な防振装置を提供することにある。   An object of the present invention is to provide a vibration-damping device capable of attenuating vibrations in the axial direction while also attenuating vibrations in the axial direction.

本発明に係る防振装置は、振動発生部及び振動受部のうちの一方に連結される、筒状の外側取付部材と、前記振動発生部及び前記振動受部のうちの他方に連結されるとともに、前記外側取付部材の内側に配置される、内側取付部材と、前記外側取付部材と前記内側取付部材とを連結すると共に、前記外側取付部材の中心軸線に沿う軸方向に間隔をあけて配置された一対の弾性体と、前記弾性体を壁面の一部として前記外側取付部材の内側に形成されるとともに、液体が封入される、液室と、前記一対の弾性体の間に配置され、軸周りの少なくとも一部で前記内側取付部材側から前記外側取付部材に向かって延びる、フランジ部と、前記内側取付部材側から前記外側取付部材に向かって延びるとともに、前記フランジ部よりも軸方向の外側で軸直方向に向く面を形成する、抵抗部と、を有する。
本発明に係る防振装置によれば、軸方向の振動を減衰させつつ軸直方向の振動も大きく減衰させることが可能になる。 The vibration control device according to the present invention is connected to the other of the cylindrical outer attachment member connected to one of the vibration generating portion and the vibration receiving portion, and the other of the vibration generating portion and the vibration receiving portion. And an inner mounting member disposed inside the outer mounting member, and the outer mounting member and the inner mounting member are connected to each other, and are spaced apart in the axial direction along the central axis of the outer mounting member. A pair of elastic bodies, the elastic body being formed as a part of a wall surface inside the outer attachment member, and disposed between a liquid chamber in which liquid is sealed and the pair of elastic bodies; A flange portion extending toward the outer attachment member from the inner attachment member side at least in part around an axis, extending from the inner attachment member side toward the outer attachment member, and being axially more axial than the flange portion Outside axis Forming a surface facing in a direction having a resistance unit.
According to the vibration damping device of the present invention, it is possible to damp the vibration in the axial direction while also damping the vibration in the axial direction.

本発明に係る防振装置では、前記抵抗部は、前記内側取付部材側から軸直方向外側に、前記フランジ部よりも軸直方向の外側にまでわたって形成されていることが好ましい。
この場合、軸直方向に向く、抵抗部の面の面積が増大することにより、軸直方向の振動をより大きく減衰させることが可能になる。 In the anti-vibration device according to the present invention, preferably, the resistance portion is formed to extend outward in the axial straight direction from the inner attachment member side and extend outward in the axial straight direction with respect to the flange portion.
In this case, the increase in the area of the surface of the resistance portion facing in the axial direction makes it possible to damp the vibration in the axial direction more largely.

本発明に係る防振装置では、前記抵抗部と前記フランジ部とに連結されており、軸方向に向く面を有する、補強部をさらに備えることが好ましい。
この場合、軸方向の振動をより減衰させることが可能になる。 The vibration control device according to the present invention preferably further includes a reinforcing portion connected to the resistance portion and the flange portion and having a surface facing in the axial direction.
In this case, it is possible to further damp axial vibration.

本発明に係る防振装置では、前記補強部は、前記フランジ部の軸直方向の外側に形成されていることが好ましい。
この場合、前記補強部が、前記フランジ部の軸直方向の外側に形成されていることで、抵抗部の剛性が高まることにより、軸直方向の振動をより一層大きく減衰させることが可能になる。 In the vibration control device according to the present invention, preferably, the reinforcing portion is formed on the outer side in the axial direction of the flange portion.
In this case, by forming the reinforcing portion on the outer side in the axial direction of the flange portion, the rigidity of the resistance portion can be enhanced, thereby making it possible to further attenuate the vibration in the axial direction. .

本発明に係る防振装置では、前記補強部は、軸方向の寸法が、前記フランジ部の当該軸方向の寸法よりも小さいことが好ましい。
この場合、補強部の剛性の増加が抑えられることにより、抵抗部が振動入力時に圧縮される場合でも過大な反力を生じ難くなるため、柔らかなばね特性を得ることができる。 In the vibration damping device according to the present invention, it is preferable that an axial dimension of the reinforcing portion is smaller than a dimension of the flange portion in the axial direction.
In this case, since the increase in the rigidity of the reinforcing portion is suppressed, it is difficult to generate an excessive reaction force even when the resistance portion is compressed at the time of vibration input, so that a soft spring characteristic can be obtained.

本発明に係る防振装置では、前記抵抗部は、前記抵抗部に形成される前記面と直交する方向の軸直方向の寸法が前記内側取付部材の当該軸直方向の寸法よりも小さいことが好ましい。
この場合、抵抗部の剛性が低く抑えられることにより、抵抗部が振動入力時に圧縮される場合でも過大な反力を生じ難くなるため、柔らかなばね特性を得ることができる。 In the anti-vibration device according to the present invention, it is preferable that the dimension of the resistance portion in a direction perpendicular to the surface formed in the resistance portion is smaller than the dimension in the direction perpendicular to the axis of the inner attachment member. preferable.
In this case, since the rigidity of the resistance portion is suppressed to be low, it is difficult to generate an excessive reaction force even when the resistance portion is compressed at the time of vibration input, so that a soft spring characteristic can be obtained.

本発明に係る防振装置では、前記フランジ部は、前記内側取付部材を挟んで互いに対向する向きに延びる２つの突出部を有しており、前記抵抗部は、前記フランジ部の前記突出部と直交するように前記内側取付部材を挟んで互いに対向する２箇所の位置に設けられていることが好ましい。
この場合、軸方向の振動を減衰させつつ軸直方向の振動も大きく効果的に減衰させることが可能になる。 In the vibration damping device according to the present invention, the flange portion has two projecting portions extending in directions facing each other across the inner attachment member, and the resistance portion is the projecting portion of the flange portion It is preferable to provide in two positions which mutually oppose on both sides of the said inner attachment member so that it may be orthogonal.
In this case, it is possible to effectively damp the vibration in the axial direction while damping the vibration in the axial direction.

本発明によれば、軸方向の振動を減衰させつつ軸直方向の振動も大きく減衰させることが可能な防振装置を提供することができる。   According to the present invention, it is possible to provide an anti-vibration device capable of largely damping the vibration in the axial direction while damping the vibration in the axial direction.

（ａ）は、本発明の一実施形態に係る防振装置を当該防振装置の一端側から示す斜視図であり、（ｂ）は、（ａ）の防振装置を当該防振装置の他端側から示す斜視図である。(A) is a perspective view which shows the vibration isolator which concerns on one Embodiment of this invention from one end side of the said vibration isolator, (b) is the vibration isolator of (a) other than the said vibration isolator It is a perspective view shown from an end side. （ａ）は、図１（ａ），（ｂ）のＡ−Ａ断面図であり、（ｂ）は、図１（ａ），（ｂ）のＢ−Ｂ断面図である。(A) is AA sectional drawing of Fig.1 (a), (b), (b) is BB sectional drawing of Fig.1 (a), (b). 図１（ａ），（ｂ）の防振装置を、外側取付部材を取り除いた状態で示す斜視図である。It is a perspective view which shows the anti-vibration apparatus of FIG. 1 (a), (b) in the state which removed the outer side attachment member. 図３のＣ−Ｃ断面図である。It is CC sectional drawing of FIG. （ａ）は、図３を上方向又は下方向から示す平面図であり、（ｂ）は、図３を左方向又は右方向から示す側面図である。(A) is a top view which shows FIG. 3 from upper direction or lower direction, (b) is a side view which shows FIG. 3 from left direction or right direction. （ａ）は、図５（ａ）のＤ−Ｄ断面図であり、（ｂ）は、（ａ）の斜視図である。(A) is DD sectional drawing of Fig.5 (a), (b) is a perspective view of (a).

以下、図面を参照して、本発明の一実施形態に係る防振装置を詳細に説明する。   Hereinafter, with reference to the drawings, a vibration control apparatus according to an embodiment of the present invention will be described in detail.

図１（ａ）及び図１（ｂ）中、符号１は、本発明の一実施形態に係る防振装置である。防振装置１は、車両に取り付けることができ、例えば、エンジンとフレーム又はシャシとを連結する。本実施形態では、車両の前後、上下及び左右を互いに直交する座標軸として、図示のように規定し、本実施形態の防振装置１は、例えば、車両に配置されている。   In FIG. 1A and FIG. 1B, reference numeral 1 denotes an anti-vibration device according to an embodiment of the present invention. The vibration isolation device 1 can be attached to a vehicle, and for example, connects an engine and a frame or a chassis. In the present embodiment, the front, rear, upper and lower sides, and left and right of the vehicle are defined as coordinate axes orthogonal to each other as illustrated, and the vibration control device 1 of the present embodiment is disposed in the vehicle, for example.

符号２は、振動発生部（例えば、エンジン）及び振動受部（例えば、フレーム又はシャシ）のうちの一方に連結される外側取付部材である。外側取付部材２は、筒状の部材である。本実施形態では、外側取付部材２は、円筒状の部材であるが、筒状の部材であれば、外側取付部材２の外観形状は限定されない。また、本実施形態では、外側取付部材２は、アルミ合金等の金属で構成されているが、外側取付部材２を構成する材質は金属に限定されるものではなく、合成樹脂等で構成することができる。   The code | symbol 2 is an outer side attachment member connected with one of a vibration generation part (for example, engine) and a vibration receiving part (for example, frame or chassis). The outer attachment member 2 is a cylindrical member. In the present embodiment, the outer attachment member 2 is a cylindrical member, but the outer appearance of the outer attachment member 2 is not limited as long as it is a cylindrical member. Moreover, although the outer side attachment member 2 is comprised with metals, such as an aluminum alloy, in this embodiment, the material which comprises the outer side attachment member 2 is not limited to a metal, It is comprised with a synthetic resin etc. Can.

符号３は、前記振動発生部及び前記振動受部のうちの他方に連結されるとともに外側取付部材２の内側に配置される内側取付部材である。内側取付部材３は、軸Ｏの方向（以下、「軸方向」ともいう）に沿って延びている軸部材とされている。本実施形態では、外側取付部材２及び内側取付部材３は、内側取付部材３の軸Ｏを中心軸に同軸に配置されている。   Reference numeral 3 denotes an inner mounting member connected to the other of the vibration generating portion and the vibration receiving portion and disposed inside the outer mounting member 2. The inner mounting member 3 is a shaft member extending in the direction of the axis O (hereinafter, also referred to as “axial direction”). In the present embodiment, the outer mounting member 2 and the inner mounting member 3 are disposed coaxially with the axis O of the inner mounting member 3 as the central axis.

また本実施形態では、内側取付部材３は円筒状の部材であり、内側取付部材３の内周面形状は楕円形状であるが、外観形状及び内周面形状はこれに限定されることなく、様々な形状とすることができる。さらに、内側取付部材３は、筒状の部材に限定されることなく、中実の部材等とすることも可能である。また、本実施形態では、内側取付部材３は、アルミ合金等の金属で構成されているが、内側取付部材３を構成する材質は、外側取付部材３と同様、金属に限定されるものではない。   Further, in the present embodiment, the inner mounting member 3 is a cylindrical member, and the inner peripheral surface shape of the inner mounting member 3 is an elliptical shape, but the external shape and the inner peripheral surface shape are not limited thereto. It can be of various shapes. Furthermore, the inner attachment member 3 is not limited to a tubular member, and may be a solid member or the like. Further, in the present embodiment, the inner mounting member 3 is made of a metal such as an aluminum alloy, but the material of the inner mounting member 3 is not limited to metal, like the outer mounting member 3. .

符号４は、外側取付部材２と内側取付部材３とを連結する弾性連結部材である。弾性連結部材４は、例えば、ゴム等で構成されている。   The code | symbol 4 is an elastic connection member which connects the outer side attachment member 2 and the inner side attachment member 3. As shown in FIG. The elastic connection member 4 is made of, for example, rubber or the like.

図２（ａ）及び図２（ｂ）中、符号Ｒは、弾性連結部材４を壁面の一部として外側取付部材２の内側に形成されるとともに液体が封入される液室である。本実施形態では、弾性連結部材４は、外側取付部材２と内側取付部材３とを連結すると共に、軸Ｏ（中心軸線）に沿う軸方向に間隔をあけて配置された一対の弾性体４ａを有している。２つの弾性体４ａはそれぞれ、軸Ｏと直交する方向（以下、「軸直方向」ともいう）に広がる環状の形状であり、外側取付部材２の前側及び後側で、外側取付部材２と内側取付部材３との間に形成される環状の隙間を閉じている。これにより、本実施形態では、液室Ｒは、２つの弾性体４ａを壁面の一部として外側取付部材２の内側に、軸方向に間隔を置いて閉じられて軸方向周りに通じる環状の液室として構成されている。なお、本実施形態の防振装置１で用いられる液体の例としては、シリコーンオイル等の高粘度の液体が挙げられる。また、本実施形態では、外側取付部材２をかしめて弾性体４ａに固定するため、弾性体４ａの外縁付近には、金属製の中間筒Ｃが設けられている。   In FIG. 2A and FIG. 2B, reference symbol R denotes a liquid chamber which is formed inside the outer mounting member 2 with the elastic connecting member 4 as a part of the wall surface and in which the liquid is sealed. In the present embodiment, the elastic connection member 4 connects the outer attachment member 2 and the inner attachment member 3 and at the same time, is spaced apart in the axial direction along the axis O (central axis). Have. Each of the two elastic bodies 4a has an annular shape extending in a direction orthogonal to the axis O (hereinafter, also referred to as “axially perpendicular direction”), and the outer mounting member 2 and the inner side on the front and rear sides of the outer mounting member 2 The annular gap formed with the mounting member 3 is closed. Thereby, in the present embodiment, the liquid chamber R is an annular liquid which is closed at an interval in the axial direction and is opened in the axial direction around the inside of the outer mounting member 2 with the two elastic bodies 4a as a part of the wall surface. It is configured as a room. In addition, high viscosity liquids, such as silicone oil, are mentioned as an example of the liquid used with the vibration isolator 1 of this embodiment. Further, in the present embodiment, a metal intermediate cylinder C is provided in the vicinity of the outer edge of the elastic body 4a in order to crimp the outer mounting member 2 and fix it to the elastic body 4a.

図２（ａ）中、符号５は、一対の弾性体４ａの間に配置され、軸周りの少なくとも一部で内側取付部材３側から外側取付部材２に向かって延びる、フランジ部である。本実施形態では、フランジ部５は、一対の弾性体４ａの軸方向の間に配置されており、内側取付部材３側から軸直方向に延びている。フランジ部５は、軸方向（本実施形態では、「前後方向」）に向く２つの面５ｆを形成している。フランジ部５、特に本実施形態では、フランジ部５の面５ｆはそれぞれ、液室Ｒ内の液体からの抵抗を受けることにより、軸方向（本実施形態では、「前後方向」）の振動を減衰させる機能を発揮する。   In FIG. 2A, reference numeral 5 is a flange portion disposed between the pair of elastic bodies 4a and extending toward the outer attachment member 2 from the inner attachment member 3 side at least in part around the axis. In the present embodiment, the flange portion 5 is disposed between the pair of elastic bodies 4 a in the axial direction, and extends in the axial direction from the inner mounting member 3 side. The flange portion 5 forms two surfaces 5 f facing in the axial direction (in the present embodiment, “front-rear direction”). The flange portion 5, particularly the surface 5f of the flange portion 5 in the present embodiment, receives the resistance from the liquid in the liquid chamber R, thereby damping the vibration in the axial direction ("front-rear direction" in the present embodiment) Demonstrate the ability to

また本実施形態では、フランジ部５は、内側取付部材３を挟んで互いに対向する方向に延びている。具体的には、図３に示すように、フランジ部５は、軸直方向に広がる形状であり、フランジ部５の上下方向が左右方向よりも長く延びている。本実施形態では、フランジ部５は、弾性体４ａよりも小径のフランジを仮想フランジとし、この仮想フランジの左右両側の一部をそれぞれ、図３に示すように、上下方向に切り欠いたような形状である。これにより、フランジ部５には、左右方向よりも上下方向に延びる２つの突出部５ａが形成されている。２つの突出部５ａはそれぞれ、防振装置１に対して軸直方向（本実施形態では、「上下方向」）に過大な振動が入力されたときに、外側取付部材２の内面に接触することによって過大な相対変位を抑制する。   Further, in the present embodiment, the flanges 5 extend in the direction opposite to each other with the inner attachment member 3 interposed therebetween. Specifically, as shown in FIG. 3, the flange portion 5 has a shape that spreads in the axial direction, and the vertical direction of the flange portion 5 is longer than the left and right direction. In the present embodiment, the flange portion 5 has a flange smaller in diameter than the elastic body 4a as a virtual flange, and a part of the left and right sides of the virtual flange is cut away in the vertical direction as shown in FIG. It is a shape. Thus, the flange portion 5 is formed with two projecting portions 5 a extending in the vertical direction more than in the lateral direction. The two projecting portions 5a respectively contact the inner surface of the outer mounting member 2 when excessive vibration is input in the axial direction (in the present embodiment, "vertical direction") with respect to the vibration damping device 1. Suppresses excessive relative displacement.

さらに本実施形態では、図４に示すように、フランジ部５は、内側取付部材３に設けられたフランジ部本体６と弾性連結部材４とで構成されている。フランジ部本体６は、内側取付部材３と一体に設けられており、フランジ部５よりも小さく、フランジ部５と略相似形とされている。フランジ部本体６は、金属等で構成されているが、フランジ部本体６を構成する材質は金属に限定されるものではなく、合成樹脂等で構成することができる。本実施形態では、フランジ部本体６は、弾性連結部材４によって被覆されている。本実施形態では、フランジ部５は、弾性連結部材４で被覆されているため、フランジ部５が外側取付部材２に接触したときの衝撃を緩和することができる。   Furthermore, in the present embodiment, as shown in FIG. 4, the flange portion 5 is configured by the flange portion main body 6 provided on the inner mounting member 3 and the elastic connection member 4. The flange portion main body 6 is provided integrally with the inner attachment member 3, is smaller than the flange portion 5, and is substantially similar to the flange portion 5. The flange body 6 is made of metal or the like, but the material of the flange body 6 is not limited to metal and can be made of synthetic resin or the like. In the present embodiment, the flange portion main body 6 is covered by the elastic connection member 4. In the present embodiment, since the flange portion 5 is covered with the elastic connection member 4, the impact when the flange portion 5 contacts the outer attachment member 2 can be alleviated.

なお、本実施形態では、図４に示すように、フランジ部本体６のうち、フランジ部５の突出部５ａを形作る部分に、少なくとも１つの貫通穴６ｈが形成されている。本実施形態では、フランジ部本体６に複数の貫通穴６ｈが形成されている。フランジ部本体６に貫通穴６ｈを形成すれば、弾性連結部材４とフランジ部本体６とを強固に固定できるとともに軽量化を図ることができる。   In the present embodiment, as shown in FIG. 4, at least one through hole 6 h is formed in the portion of the flange portion main body 6 that forms the protruding portion 5 a of the flange portion 5. In the present embodiment, a plurality of through holes 6 h are formed in the flange portion main body 6. If the through hole 6h is formed in the flange portion main body 6, the elastic connection member 4 and the flange portion main body 6 can be firmly fixed and weight reduction can be achieved.

符号７は、内側取付部材３から外側取付部材２に向かって延びる抵抗部である。抵抗部７は、図４に示すように、内側取付部材３に対してフランジ本体部６及び弾性連結部材４を介して連結されている。本実施形態では、抵抗部７は、弾性材料で構成されており、弾性連結部材４と一体に形成されている。さらに、本実施形態では、図３に示すように、抵抗部７は、軸直方向外側（径方向外側）に延びている。具体的には、上下方向に対して直交する左右方向に延びている。加えて、抵抗部７は、軸方向に延びることで軸直方向（本実施形態では、「上下方向」）に向く面７ｆを形成している。本実施形態では、抵抗部７の面７ｆは、上下方向に対して直交する面である。抵抗部７の面７ｆは、液室Ｒ内の液体からの抵抗を受けることにより、軸直方向の振動を減衰させる機能を発揮する。   Reference numeral 7 denotes a resistance portion extending from the inner mounting member 3 toward the outer mounting member 2. As shown in FIG. 4, the resistance portion 7 is connected to the inner attachment member 3 via the flange main body portion 6 and the elastic connection member 4. In the present embodiment, the resistance portion 7 is made of an elastic material, and is integrally formed with the elastic connection member 4. Furthermore, in the present embodiment, as shown in FIG. 3, the resistance portion 7 extends outward in the axial direction (outward in the radial direction). Specifically, it extends in the left-right direction orthogonal to the up-down direction. In addition, the resistance portion 7 extends in the axial direction to form a surface 7 f facing in the axial direction (in the present embodiment, “vertical direction”). In the present embodiment, the surface 7 f of the resistance portion 7 is a surface orthogonal to the vertical direction. The surface 7f of the resistance portion 7 exerts a function of damping the vibration in the axial direction by receiving the resistance from the liquid in the liquid chamber R.

抵抗部７は、少なくともフランジ部５よりも軸方向の外側に形成する必要がある。本実施形態では、抵抗部７は、図５（ａ）に示すように、軸直方向（本実施形態では、上下方向）から見たときの、フランジ部５よりも軸方向の外側で、即ち、フランジ部５と弾性体４ａとの軸方向間の領域Ｘで、それぞれ、軸直方向（本実施形態では、「上下方向」）に向く面７ｆを形成している。なお、フランジ部５よりも軸方向の外側に形成する抵抗部７は、２つの領域Ｘの少なくとも一方に形成することができる。   The resistance portion 7 needs to be formed at least axially outside of the flange portion 5. In the present embodiment, as shown in FIG. 5A, the resistance portion 7 is located outside the flange portion 5 in the axial direction when viewed from the axial direction (in the present embodiment, the vertical direction), that is, In a region X between the flange portion 5 and the elastic body 4a in the axial direction, a surface 7f facing in the axial direction (in the present embodiment, "vertical direction") is formed. In addition, the resistance part 7 formed in the axial direction outer side rather than the flange part 5 can be formed in at least one of the two area | regions X. FIG.

このように、本実施形態の防振装置１によれば、フランジ部５及び抵抗部７を設けたことにより、軸方向の振動を減衰させつつ軸直方向の振動も大きく減衰させることが可能になる。   As described above, according to the vibration damping device 1 of the present embodiment, by providing the flange portion 5 and the resistance portion 7, it is possible to damp the vibration in the axial direction while largely damping the vibration in the axial direction. Become.

また、抵抗部７は、フランジ部５よりも軸直方向の外側に形成されている。本実施形態では、抵抗部７は、内側取付部材３側から軸直方向の外側に、フランジ部５よりも軸直方向の外側にまでわたって形成されている。具体的には、抵抗部７は、図５（ａ）に示すように、内側取付部材３（本実施形態では、内側取付部材３を被覆する弾性連結部材４）と外側取付部材２（本実施形態では、弾性体４ａの軸直方向端縁）との軸直方向間、すなわち、領域Ｙのうち、フランジ部５よりも軸直方向（本実施形態では、「左方向」又は「右方向」）の外側にまでわたって形成されている。   In addition, the resistance portion 7 is formed outside the flange portion 5 in the axial direction. In the present embodiment, the resistance portion 7 is formed on the outer side in the axial straight direction from the inner mounting member 3 side to the outer side in the axial straight direction more than the flange portion 5. Specifically, as shown in FIG. 5A, the resistance portion 7 includes an inner attachment member 3 (in the present embodiment, an elastic connecting member 4 that covers the inner attachment member 3) and an outer attachment member 2 (this embodiment) In the embodiment, in the axial direction between the elastic body 4a and the axial direction of the elastic body 4a, that is, in the area Y, the axial direction (in the present embodiment, “left direction” or “right direction”) It is formed extending to the outside of).

このように、抵抗部７をフランジ部５よりも軸直方向の外側に形成すれば、軸直方向に向く、抵抗部の面の面積が増大することにより、軸直方向の振動をより大きく減衰させることが可能になる。特に、抵抗部７をフランジ部５よりも軸直方向の外側に形成する場合には、抵抗部７は、図５（ａ）に示すように、フランジ部５を取り囲むように形成することが好ましい。面７ｆの面積をより最も大きく確保できるからである。ただし、フランジ部５よりも軸直方向の外側に形成する抵抗部７には、抵抗部７を内側取付部材３側に連結することなく、フランジ部５よりも軸直方向の外側で当該フランジ部５から軸方向に延ばしただけものや、フランジ部５よりも軸直方向の外側でフランジ部５に連結することなく、２つの領域Ｘの少なくとも一方から軸直方向に延ばしたものが挙げられる。   As described above, when the resistance portion 7 is formed on the outer side in the axial straight direction with respect to the flange portion 5, the area of the surface of the resistance portion facing in the axial straight direction is increased, thereby damping the vibration in the axial straight direction more largely. It will be possible to In particular, in the case where the resistance portion 7 is formed outside the flange portion 5 in the axial straight direction, it is preferable to form the resistance portion 7 so as to surround the flange portion 5 as shown in FIG. . This is because the area of the surface 7f can be secured the largest. However, without connecting the resistance portion 7 to the inner mounting member 3 side in the resistance portion 7 formed outside the flange portion 5 in the axial straight direction, the flange portion is provided outside the flange portion 5 in the axial direction. What extended only in the axial direction from 5 and the thing extended in the axial direction from at least one of the two area | regions X without connecting with the flange part 5 in the axial direction outer side rather than the flange part 5 is mentioned.

符号８及び符号９は、それぞれ、フランジ部５と抵抗部７とを軸方向（本実施形態では、「前後方向」）及び軸直方向（本実施形態では、「左右方向」）に沿って連結する連結部である。連結部８は、軸直方向（本実施形態では「左右方向」）に延びて、抵抗部７をフランジ部５に対して軸方向（本実施形態では、「前後方向」）に連結している。連結部９は、軸方向（本実施形態では「前後方向」）に延びて、抵抗部７をフランジ部５に対して軸直方向（本実施形態では、「左方向」又は「右方向」）に連結している。このように、連結部８及び連結部９を設けて抵抗部７をフランジ部５に連結すれば、抵抗部７の剛性が高まることで、軸直方向（本実施形態では、「上下方向」）の振動をさらに減衰させることが可能になる。   The reference numerals 8 and 9 respectively connect the flange portion 5 and the resistance portion 7 along an axial direction ("longitudinal direction" in the present embodiment) and a straight axial direction ("horizontal direction" in the present embodiment). Connected part. The connecting portion 8 extends in the axial direction (in the present embodiment "left-right direction") and connects the resistance portion 7 in the axial direction (in the present embodiment "front-back direction") with respect to the flange portion 5 . The connecting portion 9 extends in the axial direction ("longitudinal direction" in the present embodiment), and the resistance portion 7 extends in the axial direction with respect to the flange portion 5 ("left direction" or "right direction" in the present embodiment) Connected to As described above, by providing the connecting portion 8 and the connecting portion 9 and connecting the resistance portion 7 to the flange portion 5, the rigidity of the resistance portion 7 is increased, whereby the axial direction (in the present embodiment, “vertical direction”) is obtained. It is possible to further dampen the vibration of the

さらに、符号１０は、抵抗部７とフランジ部６とに連結されている補強部である。本実施形態では、図４に示すように、補強部１０は、フランジ部５に対して上下方向に延びる連結部１１ａを介して連結されており、抵抗部７に対して左右方向に延びる連結部１１ｂを介して連結されている。補強部１０は、軸方向に向く面１０ｆを有している。本実施形態では、補強部１０の面１０ｆは、前後方向を向いている。
この場合、補強部１０の面１０ｆが液体から受ける抵抗により、軸方向（本実施形態では、「前後方向」）の振動をより減衰させることが可能になる。このように、補強部１０を設ければ、軸方向の振動をより減衰させることが可能になる。 Further, reference numeral 10 is a reinforcing portion connected to the resistance portion 7 and the flange portion 6. In the present embodiment, as shown in FIG. 4, the reinforcing portion 10 is connected to the flange portion 5 via the connecting portion 11 a extending in the vertical direction, and the connecting portion extends in the lateral direction to the resistance portion 7. It is connected via 11b. The reinforcing portion 10 has a surface 10 f facing in the axial direction. In the present embodiment, the surface 10 f of the reinforcing portion 10 faces in the front-rear direction.
In this case, due to the resistance that the surface 10 f of the reinforcing portion 10 receives from the liquid, it is possible to further damp the vibration in the axial direction (in the present embodiment, “front-rear direction”). Thus, if the reinforcing portion 10 is provided, it is possible to further damp axial vibration.

また、補強部１０は、フランジ部５の軸直方向（本実施形態では、「左右方向」）の内側及び外側のいずれの位置に設けることができる。例えば、補強部１０は、フランジ部５よりも軸直方向内側、すなわち、内側取付部材３（本実施形態では、内側取付部材３を被覆する弾性連結部材４）とフランジ部５の軸直方向（本実施形態では、「左右方向」）端縁との間に設けることができる。特に、本実施形態のように、抵抗部７がフランジ部５よりも軸直方向（本実施形態では、「左右方向」）の外側に形成される場合、補強部１０をフランジ部５の軸直方向（本実施形態では、「左右方向」）の外側に形成すれば、当該軸直方向に直交する軸直方向（本実施形態では、「上下方向」）に向く、抵抗部７の面７ｆの面積を増大させるとともに、補強部１０が、フランジ部５の軸直方向（本実施形態では、「左右方向」）の外側に形成されていることで、抵抗部７の剛性が高まることにより、軸直方向（本実施形態では、「上下方向」）の振動をより一層大きく減衰させることが可能になる。   In addition, the reinforcing portion 10 can be provided at any position inside or outside of the flange portion 5 in the axial direction (in the present embodiment, “left and right direction”) in the axial direction. For example, the reinforcing portion 10 is axially inner than the flange portion 5 in the axial direction, that is, the axial direction of the inner mounting member 3 (in the present embodiment, the elastic connecting member 4 covering the inner mounting member 3) In this embodiment, it can be provided between the “left and right direction” edge. In particular, as in the present embodiment, when the resistance portion 7 is formed outside the flange portion 5 in the axial direction (in the present embodiment, “left and right direction”) outside the flange portion 5, the reinforcing portion 10 is formed straight in the flange portion 5. If it is formed on the outer side of the direction (in the present embodiment, “left and right direction”), the surface 7 f of the resistance portion 7 which faces in the axial direction perpendicular to the axis (vertical direction in the present embodiment). While the area is increased, the reinforcing portion 10 is formed on the outer side in the axial direction of the flange portion 5 (in the present embodiment, “left and right direction”), so that the rigidity of the resistance portion 7 is enhanced. It is possible to damp the vibration in the straight direction (in the present embodiment, the "vertical direction") more greatly.

補強部１０の軸方向から見た形状は、軸方向に向く面１０ｆを形成する形状であれば、矩形等の、様々な形状を採用できる。本実施形態では、図６（ａ）及び（ｂ）に示すように、補強部１０は、軸方向（本実施形態絵は、前後方向）から見た形状が直角三角形の形状をしている。この場合、補強部１０が液体から受ける抵抗を確保しつつ、抵抗部７及び補強部１０の剛性を高めることで、軸方向（本実施形態では、前後方向）及び軸直方向（本実施形態では、上下方向）の減衰を向上させることができる。   If the shape seen from the axial direction of the reinforcement part 10 is a shape which forms the surface 10f turned to an axial direction, various shapes, such as a rectangle, are employable. In the present embodiment, as shown in FIGS. 6A and 6B, the reinforcing portion 10 has a right triangle shape when viewed from the axial direction (in the present embodiment, the front and rear direction). In this case, the rigidity of the resistance portion 7 and the reinforcement portion 10 is increased while securing the resistance that the reinforcement portion 10 receives from the liquid, thereby the axial direction (in the present embodiment, the front and rear direction) and the axial direction (in the present embodiment) And vertical)) can be improved.

また、抵抗部７及び補強部１０は、防振装置１に対して軸直方向（本実施形態では、「左右方向）に過大な振動が入力されたときに、外側取付部材２の内面に接触することによって過大な変位を抑制する。   In addition, the resistance portion 7 and the reinforcement portion 10 contact the inner surface of the outer attachment member 2 when excessive vibration is input to the vibration isolation device 1 in the axial direction (in the present embodiment, in the left-right direction). To prevent excessive displacement.

さらに、本実施形態では、抵抗部７及び補強部１０は、弾性材料で構成されており、弾性連結部材４と一体に形成されている。これにより、抵抗部７及び補強部１０が外側取付部材２に接触したときの衝撃を緩和することができる。   Furthermore, in the present embodiment, the resistance portion 7 and the reinforcing portion 10 are made of an elastic material, and are integrally formed with the elastic connection member 4. Thereby, the impact when the resistance part 7 and the reinforcement part 10 contact the outer side attachment member 2 can be relieved.

加えて、本実施形態では、抵抗部７は、抵抗部７に形成される面７ｆと直交する方向の軸直方向の寸法が内側取付部材３の当該軸直方向の寸法よりも小さい。より具体的に本実施形態では、抵抗部７は、図６（ａ）に示すように、抵抗部７に形成される面７ｆと直交する方向（本実施形態では、「上下方向」）の抵抗部７の厚みＤ7 が内側取付部材３の外径寸法Ｄ3よりも小さい。
この場合、抵抗部７の剛性が低く抑えられることにより、抵抗部７が、振動入力時（本実施形態では、左右方向の振動入力時）に、外側取付部材２に接触することにより圧縮される場合でも、外側取付部材２に対して過大な反力を生じ難くなるため、ばね定数が小さな柔らかなばね特性を得ることができる。 In addition, in the present embodiment, the dimension of the resistance portion 7 in the axial direction perpendicular to the surface 7 f formed in the resistance portion 7 is smaller than the dimension of the inner attachment member 3 in the axial direction. More specifically, in the present embodiment, as shown in FIG. 6A, the resistor 7 has a resistance in a direction ("vertical direction" in the present embodiment) orthogonal to the surface 7f formed on the resistor 7. The thickness D 7 of the portion 7 is smaller than the outer diameter dimension D 3 of the inner mounting member 3.
In this case, by suppressing the rigidity of the resistance portion 7 low, the resistance portion 7 is compressed by coming into contact with the outer attachment member 2 at the time of vibration input (in the present embodiment, at the time of vibration input in the left and right direction). Even in this case, since it is difficult to generate an excessive reaction force to the outer attachment member 2, it is possible to obtain a soft spring characteristic having a small spring constant.

特に、本実施形態では、補強部１０は、軸方向（本実施形態では、前後方向）の寸法が、フランジ部５の当該軸直方向の寸法よりも小さい。本実施形態では、図５（ｂ）に示すように、補強部１０の軸方向寸法Ｗ10は、フランジ部５の軸方向寸法Ｗ5 よりも小さい。この場合、補強部１０の剛性の増加が抑えられることにより、抵抗部７が、振動時（本実施形態では、例えば、左右方向の振動入力時）に、外側取付部材２に接触することにより圧縮される場合でも、外側取付部材２に対して過大な反力を生じ難くなるため、ばね定数が小さな柔らかなばね特性を得ることができる。 In particular, in the present embodiment, the dimension of the reinforcing portion 10 in the axial direction (in the present embodiment, the front-rear direction) is smaller than the dimension in the axial direction of the flange portion 5. In the present embodiment, as shown in FIG. 5 (b), the axial dimension W 10 of the reinforcing portion 10 is smaller than the axial dimension W 5 of the flange portion 5. In this case, by suppressing the increase in the rigidity of the reinforcing portion 10, the resistance portion 7 contacts the outer mounting member 2 at the time of vibration (in the present embodiment, for example, at the time of vibration input in the left and right direction) Even in such a case, since it becomes difficult to generate an excessive reaction force on the outer attachment member 2, it is possible to obtain a soft spring characteristic having a small spring constant.

さらに、本実施形態では、フランジ部５は、内側取付部材３を挟んで互いに対向する向きに延びる２つの突出部５ａを有しており、抵抗部７は、フランジ部５の突出部５ａと直交するように内側取付部材３を挟んで互いに対向する２箇所の位置に設けられている。本実施形態では、２つの突出部５ａは、内側取付部材３を挟んで上下方向に対向する向きに延び、抵抗部７は、内側取付部材３を挟んで左右方向に互いに対向する２箇所の位置に設けられている。
この場合、軸方向の振動を減衰させつつ軸直方向の振動をより効果的に減衰させることが可能になる。 Furthermore, in the present embodiment, the flange portion 5 includes two projecting portions 5 a extending in directions facing each other with the inner mounting member 3 interposed therebetween, and the resistance portion 7 is orthogonal to the projecting portion 5 a of the flange portion 5 It is provided in two positions which mutually oppose on both sides of the inner attachment member 3 so that it may be carried out. In the present embodiment, the two projecting portions 5a extend in the direction facing each other in the vertical direction across the inner mounting member 3, and the resistance portions 7 are located at two positions facing each other in the lateral direction across the inner mounting member 3. Provided in
In this case, it is possible to more effectively damp the vibration in the axial direction while damping the vibration in the axial direction.

本発明によれば、軸方向の振動を減衰させつつ軸直方向の振動をより減衰させることが可能な防振装置を提供することができる。   According to the present invention, it is possible to provide a vibration-damping device capable of further damping the vibration in the axial direction while damping the vibration in the axial direction.

上述したところは、本発明の実施形態の例示であって、特許請求の範囲の記載によれば、種々の変更が可能である。例えば、本実施形態では、フランジ部５は、内側取付部材３を挟んで互いに対向する向きに延びる２つの突出部５ａを有しているが、軸周りの少なくとも一部で内側取付部材３から外側取付部材２に向かって延びる構成であればよい。例えば、フランジ部５は、少なくとも１つ以上の突出部５ａを有していればよく、或いは、軸周りに形成された円形のものであってもよい。また、本実施形態では、フランジ部５をストッパとして機能させたが、外側取付部材２との間での液体の流通を調整するようにして減衰機能を発揮させることもできる。さらに、防振装置１の配置は、本実施形態の座標軸に限定されるものではなく、様々に変更することができる。例えば、軸Ｏは、本実施形態のように、前後方向に採るだけではなく、上下方向又は左右方向に採ることもできる。   The above description is an illustration of an embodiment of the present invention, and various modifications are possible according to the description of the claims. For example, in the present embodiment, the flange portion 5 has two projecting portions 5a extending in directions facing each other with the inner mounting member 3 interposed therebetween, but at least a part of the circumference of the axis is outside the inner mounting member 3 It may be configured to extend toward the mounting member 2. For example, the flange portion 5 may have at least one or more projecting portions 5a, or may be a circular shape formed around an axis. Further, in the present embodiment, although the flange portion 5 is made to function as a stopper, it is also possible to exert a damping function by adjusting the flow of the liquid with the outer attachment member 2. Furthermore, the arrangement of the anti-vibration device 1 is not limited to the coordinate axes of the present embodiment, and can be variously changed. For example, as in the present embodiment, the axis O can be taken not only in the front-rear direction but also in the vertical direction or the left-right direction.

本発明は、外側取付部材、内側取付部材、外側取付部材及び内側取付部材を連結する弾性体、並びに、前記弾性体を壁面の一部として外側取付部材の内側に形成される液室を有する防振装置に適用することができる。   The present invention has an outer mounting member, an inner mounting member, an elastic body connecting the outer mounting member and the inner mounting member, and a liquid chamber formed with the elastic body as a part of the wall surface inside the outer mounting member. The invention can be applied to vibration devices.

１；防振装置， ２；外側取付部材， ３；内側取付部材， ４；弾性連結部材， ４ａ；弾性体， ５；フランジ部， ５ａ；突出部， ５ｆ；面， ６；フランジ部本体， ７；抵抗部， ７ｆ；面， ８；連結部， ９； 連結部， １０；補強部， １０ｆ；面， １１ａ；連結部， １１ｂ；連結部， Ｒ；液室   1; anti-vibration device, 2; outer mounting member, 3; inner mounting member, 4; elastic connecting member, 4a; elastic body, 5; flange portion, 5a; projecting portion, 5f; surface, 6; flange portion main body, 7 Resistance portion 7f surface 8 connection portion 9 connection portion 10 reinforcement portion 10f surface 11a connection portion 11b connection portion R liquid chamber

Claims (7)

振動発生部及び振動受部のうちの一方に連結される、筒状の外側取付部材と、
前記振動発生部及び前記振動受部のうちの他方に連結されるとともに、前記外側取付部材の内側に配置される、内側取付部材と、
前記外側取付部材と前記内側取付部材とを連結すると共に、前記外側取付部材の中心軸線に沿う軸方向に間隔をあけて配置された一対の弾性体と、
前記弾性体を壁面の一部として前記外側取付部材の内側に形成されるとともに、液体が封入される、液室と、
前記一対の弾性体の間に配置され、軸周りの少なくとも一部で前記内側取付部材側から前記外側取付部材に向かって延びる、フランジ部と、
前記内側取付部材側から前記外側取付部材に向かって延びるとともに、前記フランジ部よりも軸方向の外側で軸直方向に向く面を形成する、抵抗部と、
を有する防振装置。 A cylindrical outer attachment member connected to one of the vibration generator and the vibration receiver;
An inner mounting member connected to the other of the vibration generating portion and the vibration receiving portion and disposed inside the outer mounting member;
A pair of elastic bodies connected between the outer attachment member and the inner attachment member and spaced apart in the axial direction along the central axis of the outer attachment member;
A liquid chamber formed inside the outer mounting member with the elastic body as a part of a wall, and in which a liquid is sealed;
A flange portion disposed between the pair of elastic bodies and extending toward the outer attachment member from the inner attachment member side at least in part around an axis;
A resistance portion that extends from the inner attachment member side toward the outer attachment member and that forms a surface facing axially inward in the axial direction outside the flange portion;
Vibration isolation device. 前記抵抗部は、前記内側取付部材側から軸直方向外側に、前記フランジ部よりも軸直方向の外側にまでわたって形成されている、請求項１に記載の防振装置。   2. The anti-vibration device according to claim 1, wherein the resistance portion is formed so as to extend outward in the axial straight direction from the inner attachment member side and extend outward in the axial straight direction with respect to the flange portion. 前記抵抗部と前記フランジ部とに連結されており、軸方向に向く面を有する、補強部をさらに備える、請求項１又は２に記載の防振装置。   The anti-vibration device according to claim 1, further comprising a reinforcing portion connected to the resistance portion and the flange portion and having a surface facing in the axial direction. 前記補強部は、前記フランジ部の軸直方向の外側に形成されている、請求項３に記載の防振装置。   The anti-vibration device according to claim 3, wherein the reinforcing portion is formed on the outer side in the axial direction of the flange portion. 前記補強部は、軸方向の寸法が、前記フランジ部の当該軸方向の寸法よりも小さい、請求項３又は４に記載の防振装置。   The anti-vibration device according to claim 3, wherein an axial dimension of the reinforcing portion is smaller than a dimension of the flange portion in the axial direction. 前記抵抗部は、前記抵抗部に形成される前記面と直交する方向の軸直方向の寸法が前記内側取付部材の当該軸直方向の寸法よりも小さい、請求項１乃至５のいずれか１項に記載の防振装置。   The dimension in the axial direction of the direction orthogonal to the surface formed in the resistor portion is smaller than the dimension in the axial direction of the inner attachment member. Vibration isolation device according to. 前記フランジ部は、前記内側取付部材を挟んで互いに対向する向きに延びる２つの突出部を有しており、前記抵抗部は、前記フランジ部の前記突出部と直交するように前記内側取付部材を挟んで互いに対向する２箇所の位置に設けられている、請求項１乃至６のいずれか１項に記載の防振装置。   The flange portion has two protrusions extending in directions facing each other with the inner attachment member interposed therebetween, and the resistance portion is configured to have the inner attachment member perpendicular to the protrusion of the flange portion. The anti-vibration device according to any one of claims 1 to 6, wherein the anti-vibration device is provided at two positions facing each other.
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