JPH0914333A - Vibration control device - Google Patents
Vibration control deviceInfo
- Publication number
- JPH0914333A JPH0914333A JP16270895A JP16270895A JPH0914333A JP H0914333 A JPH0914333 A JP H0914333A JP 16270895 A JP16270895 A JP 16270895A JP 16270895 A JP16270895 A JP 16270895A JP H0914333 A JPH0914333 A JP H0914333A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- elastic body
- liquid chamber
- outer cylinder
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Combined Devices Of Dampers And Springs (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、振動発生部からの振
動の伝達を防止する場合等に適用される防振装置に関
し、例えばエンジン振動の車体への伝達を阻止するため
のエンジンマウント、その他車両用及び一般産業機体等
に適用可能なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration isolator applied to prevent transmission of vibrations from a vibration generator, for example, an engine mount for preventing transmission of engine vibrations to a vehicle body, and others. It is applicable to vehicles and general industrial machines.
【0002】[0002]
【従来の技術】例えば、車両の振動発生部となるエンジ
ンと振動受部となる車体との間にエンジンマウントとし
ての防振装置が配設されていて、エンジンが発生する振
動をこの防振装置が吸収し、車体側に伝達されるのを阻
止するようになっている。すなわち、このような防振装
置の一例として、図4に示すような防振装置110が知
られており、この図に基づき従来技術を説明する。2. Description of the Related Art For example, a vibration isolator as an engine mount is arranged between an engine which is a vibration generating part of a vehicle and a vehicle body which is a vibration receiving part. Is absorbed and is prevented from being transmitted to the vehicle body side. That is, as an example of such a vibration isolation device, a vibration isolation device 110 as shown in FIG. 4 is known, and a conventional technique will be described based on this drawing.
【0003】この防振装置110は、エンジン側のブラ
ケットに取り付けられるセンター部材112と外筒11
4との間にゴムからなる弾性体116が設けられ、外筒
114および弾性体116の内側には液体を封入した液
室118が設けられると共にゴム膜からなるダイヤフラ
ム120でこの液室118が密閉されることによって構
成される。液室118内は隔壁部材122によって一対
の液室118A、118Bに区画され、制限通路124
によってこれらの液室118A、118Bが互いに連通
されている。この隔壁部材122およびダイヤフラム1
20は、外筒114の開口部分に蓋部材126を固定す
る際にこの両者に挟持されることによって取り付けられ
る。蓋部材126はボルト126Aによって車体側に取
り付けられ、従って、蓋部材126と一体の外筒114
はこの蓋部材126を介して車体側に取り付けられてい
る。そして、搭載されたエンジンが作動して振動が発生
した場合には、弾性体116の制振機能および液室11
8A、118Bを連通する制限通路124内の液体の液
柱共振等で、減衰力を発生させて振動を吸収し、振動の
伝達を阻止するようになっている。The vibration isolator 110 includes a center member 112 mounted on a bracket on the engine side and an outer cylinder 11.
4, an elastic body 116 made of rubber is provided, a liquid chamber 118 in which a liquid is sealed is provided inside the outer cylinder 114 and the elastic body 116, and the liquid chamber 118 is sealed by a diaphragm 120 made of a rubber film. It is configured by The inside of the liquid chamber 118 is partitioned into a pair of liquid chambers 118A and 118B by a partition member 122, and the limiting passage 124
These liquid chambers 118A and 118B are communicated with each other. The partition member 122 and the diaphragm 1
20 is attached by being sandwiched by both when fixing the lid member 126 to the opening portion of the outer cylinder 114. The lid member 126 is attached to the vehicle body side by a bolt 126A, and therefore, the outer cylinder 114 integral with the lid member 126.
Is attached to the vehicle body side via the lid member 126. When the mounted engine operates to generate vibration, the vibration damping function of the elastic body 116 and the liquid chamber 11
A liquid column resonance of the liquid in the restriction passage 124 that communicates 8A and 118B, etc., is used to generate a damping force, absorb the vibration, and prevent the vibration from being transmitted.
【0004】[0004]
【発明が解決しようとする課題】しかし、前述のような
防振装置110では、低周波数域の振動が制限通路12
4を液体が流通することによって減衰されるのに対し
て、これより高周波数域の振動が伝達されると、制限通
路124の目詰まりにより、液室118Aの内圧が上昇
してばね係数が高まり、結果として、十分に振動を低減
出来ないという欠点を有していた。However, in the vibration isolator 110 as described above, vibrations in the low frequency range are restricted to the restricted passage 12.
When the liquid in the liquid chamber 4 is attenuated by the flow of the liquid, when the vibration in the higher frequency range is transmitted, the internal pressure of the liquid chamber 118A is increased due to the clogging of the restriction passage 124, and the spring coefficient is increased. As a result, there is a drawback that the vibration cannot be reduced sufficiently.
【0005】また、この欠点を解決すべく、図5に示さ
れるような隔壁部材122に往復動可能な可動片128
を備えたもの、あるいは可動片128の替わりにゴム膜
からなるメンブランを備えたものが提案されているが、
これらのものは、構造が複雑となり、製造が煩雑で部品
点数が多くなってコストアップする欠点が生ずる。Further, in order to solve this drawback, a movable piece 128 capable of reciprocating in the partition member 122 as shown in FIG.
It has been proposed that the one having a membrane made of a rubber film instead of the movable piece 128 is provided.
These products have the disadvantages that the structure is complicated, the manufacturing is complicated, the number of parts is large, and the cost is increased.
【0006】またさらに、図6,図7に示されるよう
に、弾性体116に凹部130を設けて薄肉部132を
形成し、液室118Aの内圧が上昇するのを防止する構
成のものも提案されているが、図5のものは、液室側に
凹部130が形成されているため液室内に封入される液
体の量が増加し、装置重量が増加する不具合が生じてし
まい、図6のものは、図中上方へ成形型を離型させて凹
部130を軸方向に凹設させているため、凹部130内
に異物が溜まり易く、また一旦異物が入り込むと排出さ
れ難い。さらには例えば段付き等の外径が異なるセンタ
ー部材を用いた場合には、成形型の離型の関係からこの
センター部材の最外径より中心側に凹部130が形成で
きないため薄肉部の面積が十分に確保でき難く、そして
これらのことは装置の特性に悪影響を与えることにもな
る。Further, as shown in FIGS. 6 and 7, a structure is also proposed in which a recess 130 is provided in the elastic member 116 to form a thin portion 132 so as to prevent the internal pressure of the liquid chamber 118A from rising. However, in the case of FIG. 5, since the recess 130 is formed on the side of the liquid chamber, the amount of the liquid sealed in the liquid chamber increases, which causes a problem that the weight of the device increases, and therefore, in FIG. In the case of the product, since the recess 130 is axially recessed by releasing the molding die upward in the drawing, foreign matter is likely to accumulate in the recess 130 and is difficult to be discharged once foreign matter enters. Further, for example, when a center member having a different outer diameter such as a step is used, the recess 130 cannot be formed closer to the center than the outermost diameter of the center member due to the mold release, so that the area of the thin portion is reduced. It is difficult to secure enough, and these also adversely affect the characteristics of the device.
【0007】本発明は上記事実を考慮し、簡易な構成で
広範囲な帯域の振動を有効に吸収し得る防振装置を提供
することを目的とする。In view of the above facts, an object of the present invention is to provide a vibration damping device having a simple structure and capable of effectively absorbing vibration in a wide band.
【0008】[0008]
【課題を解決するための手段】本発明は、振動発生部お
よび振動受部の一方に連結される外筒と、振動発生部お
よび振動受部の他方に連結されるセンター部材と、前記
外筒と前記センター部材との間に介在配設されたゴム状
弾性体と、このゴム状弾性体を隔壁の一部とし且つ液体
が封入された液室とを備えた防振装置であって、前記液
室に臨む前記ゴム状弾性体の一部が肉厚の薄い薄肉部と
なるよう、前記液室とは反対側となる前記ゴム状弾性体
部分に切欠凹部を設け、さらに、この切欠凹部は少なく
とも軸直交方向外方に向かって開放されるよう凹設され
てなるものである。According to the present invention, an outer cylinder connected to one of a vibration generating portion and a vibration receiving portion, a center member connected to the other of the vibration generating portion and the vibration receiving portion, and the outer cylinder. A vibration-damping device comprising: a rubber-like elastic body interposed between the center member and the center member; and a liquid chamber in which the rubber-like elastic body is part of a partition wall and a liquid is sealed. A cutout recess is provided in the rubber-like elastic body portion opposite to the liquid chamber so that a part of the rubber-like elastic body facing the liquid chamber becomes a thin thin portion, and the cutout recess is It is formed so as to be opened at least outward in the direction orthogonal to the axis.
【0009】[0009]
【作用】本発明の上記構成によれば、振動発生部側から
センター部材あるいは外筒に振動が伝達されると、弾性
体が変形すると共に液室内の液体に圧力変化が生じ、弾
性体および液体により振動が減衰されて振動受部側に振
動が伝達され難くなる。また、液室の隔壁を構成する弾
性体には切欠凹部により薄肉部が形成されているため、
弾性体および液体によっては減衰できないような高周波
の振動が振動発生部側から伝達された場合でも、この薄
肉部が弾性変形して低動ばねとなり、振動受部側に振動
が伝達され難くなる。According to the above-mentioned structure of the present invention, when the vibration is transmitted from the vibration generating portion side to the center member or the outer cylinder, the elastic body is deformed and a pressure change occurs in the liquid in the liquid chamber. As a result, the vibration is damped and it becomes difficult to transmit the vibration to the vibration receiving portion side. Further, since the elastic body forming the partition wall of the liquid chamber has a thin portion formed by the notched concave portion,
Even when a high-frequency vibration that cannot be damped by the elastic body and the liquid is transmitted from the vibration generating portion side, this thin portion is elastically deformed to become a low dynamic spring, and it becomes difficult to transmit the vibration to the vibration receiving portion side.
【0010】さらに、切欠凹部は弾性体の液室側ではな
く外側に形成されるので、液室側に凹部を形成するのに
比べ、液室内に封入される液体の量が増加せず少量で済
み、その分の軽量化が可能である。また、切欠凹部は少
なくとも軸直交方向外方に向かって開放されるよう凹設
されるので、切欠凹部に異物が溜まり難く、また異物が
入り込んでも容易に排出され易く、適切な振動減衰が出
来なくなる危惧がない。また弾性体の加硫成形時に型抜
きが容易に行えて製造が簡易である。Further, since the cutout recess is formed on the outer side of the elastic body rather than on the liquid chamber side, the amount of the liquid enclosed in the liquid chamber does not increase and is small compared to when the recess is formed on the liquid chamber side. It is possible to reduce the weight. Further, since the cutout recess is formed so as to be opened at least outward in the direction orthogonal to the axis, it is difficult for foreign matter to collect in the cutout recess, and even if foreign matter enters, it is easily discharged and proper vibration damping cannot be performed. There is no fear. Further, the die can be easily removed at the time of vulcanization molding of the elastic body, and the production is simple.
【0011】[0011]
【実施例】以下に、この発明の好適な実施例を図面を参
照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.
【0012】図1に示す実施例では、防振装置10の上
部側を形成する鋼製で略円錐形状のセンター部材12の
中央部分には、図示しないエンジンにこの防振装置10
を連結して固着するためのボルト孔12Bが設けられて
いる。このセンター部材12の下方側の周囲はテーパ状
の壁部12Aとなっている。一方、外筒14は鋼板製で
円筒状に形成されている。そしてこの外筒14の径方向
内方の中心軸線上位置で且つ軸線方向にはずれた位置に
センター部材12が配置される。外筒14の下部側開口
部には、鋼板製の蓋部材16がかしめ固定され、この蓋
部材16はボルト16Aを有しこのボルト16Aによっ
て図示しない車体側部材に取り付けられる。従って、外
筒14は蓋部材16と一体的に組付固定されることによ
って車体側に連結されることとなる。In the embodiment shown in FIG. 1, the center portion of the steel-made substantially conical center member 12 forming the upper side of the vibration isolator 10 has an anti-vibration device 10 for an engine (not shown).
Is provided with a bolt hole 12B for connecting and fixing. The periphery of the lower side of the center member 12 is a tapered wall portion 12A. On the other hand, the outer cylinder 14 is made of a steel plate and has a cylindrical shape. Then, the center member 12 is arranged at a position on the central axis line radially inward of the outer cylinder 14 and at a position deviated in the axial direction. A lid member 16 made of a steel plate is caulked and fixed to the lower opening of the outer cylinder 14, and the lid member 16 has a bolt 16A and is attached to a body member (not shown) by the bolt 16A. Therefore, the outer cylinder 14 is connected to the vehicle body side by being integrally assembled and fixed to the lid member 16.
【0013】また、センター部材12と外筒14との間
には、概ね円錐台形状をしたゴム製の弾性体18が配設
されている。すなわち、弾性体18はその中央部分でセ
ンター部分12の壁部12Aに加硫接着されて取り付け
られており、弾性体18の下部周縁部分で外筒14の上
部内周側に加硫接着されて取り付けられている。弾性体
18の下面18Aは後述するように液室の隔壁の一部と
して構成され、また弾性体18は外筒14との固着部分
から外筒14の内周下端まで膜状に延設されている。Further, between the center member 12 and the outer cylinder 14, an elastic body 18 made of rubber and having a substantially truncated cone shape is disposed. That is, the elastic body 18 is vulcanized and attached to the wall portion 12A of the center portion 12 at its central portion, and vulcanized and adhered to the upper inner peripheral side of the outer cylinder 14 at the lower peripheral edge portion of the elastic body 18. It is installed. A lower surface 18A of the elastic body 18 is configured as a part of a partition wall of the liquid chamber as described later, and the elastic body 18 is extended in a film shape from a portion fixed to the outer cylinder 14 to a lower end of an inner circumference of the outer cylinder 14. There is.
【0014】弾性体18は、その傾斜面18Bの一部分
に切欠凹部20が形成されるように加硫成形されてい
る。この切欠凹部20は、センター部材12に沿って立
ち上がった立壁部20Aと軸直交方向に沿って延設され
た底面20Bとで構成される。The elastic body 18 is vulcanized and molded so that a cutout recess 20 is formed in a part of the inclined surface 18B. The notched concave portion 20 is composed of a standing wall portion 20A that stands up along the center member 12 and a bottom surface 20B that extends along the axis orthogonal direction.
【0015】ここで底面20Bは、図2に示されるよう
に一辺が円弧で且つこの一辺に向かって内方から外方へ
拡開された略扇形形状とされ、これによって切欠凹部2
0が径方向外方に開放されている。また、底面20Bの
内方側は、センター部材12の最外径(ボルト孔12B
形成部分側の径)よりも中心軸線側に入り込むように形
成されている。また、この底面20Bは下面18Aに対
し平行な面となるよう形成されており、従って、この両
面の間の弾性体18は肉厚が薄く形成されて薄肉部22
となっている。なお本実施例では薄肉部22の肉厚が2
〜4mmに形成されている。一方、立壁部20Aは、底面
20Bの内方側においてセンター部材12に沿って立ち
上がり、また内方側および円弧辺部分以外においては略
垂直に立ち上がるよう形成される。As shown in FIG. 2, the bottom surface 20B has a substantially fan shape in which one side is a circular arc and is expanded from the inside toward the outside toward the one side, whereby the cutout recess 2 is formed.
0 is opened radially outward. Further, the inner side of the bottom surface 20B has an outermost diameter of the center member 12 (the bolt hole 12B).
It is formed so as to enter the central axis side more than the diameter of the forming portion side). Further, the bottom surface 20B is formed to be a surface parallel to the lower surface 18A. Therefore, the elastic body 18 between the both surfaces is formed to have a small wall thickness and a thin wall portion 22.
It has become. In this embodiment, the thin portion 22 has a thickness of 2
It is formed to ~ 4 mm. On the other hand, the standing wall portion 20A is formed so as to rise along the center member 12 on the inner side of the bottom surface 20B and rise substantially vertically except on the inner side and the arc side portion.
【0016】外筒14の下端には、その開口部分を覆う
ようにゴム膜からなるダイヤフラム24が組み付けられ
ている。そして弾性体18,外筒14およびダイヤフラ
ム24によって囲まれた密閉空は、例えば水、エチレン
グリコール等の液体が封入されて液室26が設けられ
る。さらに、この液室26内には、円板状に形成された
合成樹脂製の隔壁板28が配置されている。この隔壁板
28は、液室26を一対の液室である受圧液室26Aと
副液室26Bとに二分して区画している。また、隔壁板
28の周縁には断面コ字状に開口した周溝が形成されて
おり、隔壁板28を外筒14内方に組み付ける際に前記
周溝の開口が外筒14の内周壁面で塞がれることによっ
て、リング状の空間である制限通路30が形成される。
なお、この制限通路30は、隔壁板28の周囲に半周に
渡ってあるいはほぼ全周にわたって形成されており、そ
の一端は透孔30Aによって受圧液室26Aと連通し、
また他端は透孔30Bによって副液室26Bと連通して
いる。A diaphragm 24 made of a rubber film is attached to the lower end of the outer cylinder 14 so as to cover the opening thereof. The closed space surrounded by the elastic body 18, the outer cylinder 14 and the diaphragm 24 is provided with a liquid chamber 26 in which a liquid such as water or ethylene glycol is enclosed. Further, in the liquid chamber 26, a partition plate 28 made of a synthetic resin and formed in a disc shape is arranged. The partition plate 28 divides the liquid chamber 26 into a pair of liquid chambers, that is, a pressure receiving liquid chamber 26A and a sub liquid chamber 26B. Further, a peripheral groove having a U-shaped cross section is formed on the peripheral edge of the partition plate 28, and when the partition plate 28 is assembled inside the outer cylinder 14, the opening of the peripheral groove is the inner peripheral wall surface of the outer cylinder 14. By being closed by, the limiting passage 30 which is a ring-shaped space is formed.
The limiting passage 30 is formed around the partition wall plate 28 over a half circumference or almost the entire circumference, and one end thereof communicates with the pressure receiving liquid chamber 26A by a through hole 30A.
The other end communicates with the sub liquid chamber 26B through the through hole 30B.
【0017】隔壁板28には、径方向外方に突出した支
持部28Aが形成されており、この支持部28Aはダイ
ヤフラム24の周縁部と共に外筒14のフランジ部14
Aと蓋部材16とで挟持固定される。ダイヤフラム24
と蓋部材16との間の空間は空気室32とされて、ダイ
ヤフラム24の変形を可能としている。The partition plate 28 is formed with a support portion 28A which projects outward in the radial direction. The support portion 28A together with the peripheral edge portion of the diaphragm 24 and the flange portion 14 of the outer cylinder 14.
It is clamped and fixed by A and the lid member 16. Diaphragm 24
A space between the lid member 16 and the lid member 16 is an air chamber 32, and the diaphragm 24 can be deformed.
【0018】図3は、弾性体18の加硫成形による製造
を説明するためのもので、成形型34は、上成形型34
A,成形型34B,成形型34C,下成形型34D,成
形型34E,成形型34Fに分割されて構成され、各成
形型は図中矢印で示されたように相対的にスライド可能
とされている。なお、成形型34Bには切欠凹部20を
形成するためにこの切欠凹部20と対応する凸部35が
形成される。そして成形の際には、外筒14およびセン
ター部材12が成形型にセットされ、この状態で各成形
型によって囲まれた空間内に弾性材材料を図示しない導
入路から注入した後、加熱されて加硫成形が行われる。FIG. 3 is for explaining the production of the elastic body 18 by vulcanization molding. The molding die 34 is an upper molding die 34.
A, a molding die 34B, a molding die 34C, a lower molding die 34D, a molding die 34E, and a molding die 34F, which are configured to be slidable relative to each other as indicated by arrows in the figure. There is. In addition, in order to form the cutout recess 20 in the molding die 34B, a projection 35 corresponding to the cutout recess 20 is formed. At the time of molding, the outer cylinder 14 and the center member 12 are set in a molding die, and in this state, the elastic material is injected into the space surrounded by the molding dies from an introduction path (not shown) and then heated. Vulcanization molding is performed.
【0019】次に本実施例の作用を説明する。Next, the operation of this embodiment will be described.
【0020】センター部材12に搭載されるエンジンが
作動すると、エンジンの振動がセンター部材12を介し
て弾性体18へ伝達される。弾性体18は吸振主体とし
て作用し、弾性体18の内部摩擦に基づく制振機能によ
って振動を吸収することができる。さらに、弾性体18
の変形に合わせて受圧液室26Aが拡縮し受圧液室26
A内の液体に圧力変化が生じるのに伴って、液体が制限
通路30を通って受圧液室26Aとダイヤフラム24に
より拡縮可能とされている副液室26Bとの間で相互に
流通し、制限通路30内で生ずる液体の液柱共振等に基
づく減衰作用で防振効果を向上することができる。When the engine mounted on the center member 12 operates, the vibration of the engine is transmitted to the elastic body 18 via the center member 12. The elastic body 18 acts as a vibration absorbing body, and can absorb vibration by a vibration damping function based on internal friction of the elastic body 18. Further, the elastic body 18
The pressure receiving liquid chamber 26A expands and contracts in accordance with the deformation of the pressure receiving liquid chamber 26A.
As the pressure change occurs in the liquid in A, the liquid passes through the restriction passage 30 and flows between the pressure receiving liquid chamber 26A and the sub liquid chamber 26B expandable / contractible by the diaphragm 24, and the liquid is restricted. The damping effect based on the liquid column resonance of the liquid generated in the passage 30 can improve the vibration damping effect.
【0021】また、制限通路30が目詰まりした場合で
も、例えば200Hz近辺の周波数あるいはそれ以上の高
周波数域の振動に対して、弾性体18に設けた薄肉部2
2の変形によって低動ばね係数となり、受圧液室26A
内の液圧上昇が防がれて、車体側に振動が伝達され難く
なる。Even when the restriction passage 30 is clogged, the thin portion 2 provided in the elastic body 18 against vibrations in a high frequency range of about 200 Hz or higher, for example.
Due to the deformation of 2, the low dynamic spring coefficient and the pressure receiving liquid chamber 26A
The rise of hydraulic pressure inside is prevented, and it becomes difficult to transmit vibration to the vehicle body side.
【0022】また、上述のような構造にすれば、薄肉部
22を形成するための切欠凹部20が弾性体18の液室
26側ではなく外方側に形成されるので、液室26側に
凹部を形成するのに比べ、液室26内に封入される液体
の量が増加することがなく、重量の増加を防止できコス
トも増加することがない。さらに、切欠凹部20は軸直
交方向外方に向かって開放されるよう凹設され、切欠凹
部に異物が溜まり難く、また異物が入り込んでも容易に
排出され易く、適切な振動減衰が出来なくなる危惧がな
い。特に、図1の状態から反時計方向に90度回転させ
た状態で使用される場合には好適である。また切欠凹部
20は軸直交方向外方に向かって開放されるよう凹設さ
れており、軸直交方向に関し外方から内方に向かって奥
行きが拡がるような構成でないので、弾性体の加硫成形
時に軸直交方向に型抜きが容易に行えて製造が簡易であ
る。Further, with the above-described structure, the notch recess 20 for forming the thin portion 22 is formed not on the liquid chamber 26 side of the elastic body 18 but on the outer side thereof. Compared to forming the concave portion, the amount of the liquid sealed in the liquid chamber 26 does not increase, the increase in weight can be prevented, and the cost does not increase. Further, the notch recess 20 is provided so as to be opened outward in the direction orthogonal to the axis, and foreign matter is unlikely to collect in the notch recess, and even if foreign matter enters, it is easily discharged, and there is a danger that proper vibration damping cannot be performed. Absent. In particular, it is suitable when used in a state rotated 90 degrees counterclockwise from the state of FIG. Further, since the cutout recess 20 is provided so as to be opened outward in the direction orthogonal to the axis, and the depth does not expand from the outside to the inside in the direction orthogonal to the axis, the elastic body is vulcanized and molded. At times, die cutting can be easily performed in the direction orthogonal to the axis, and the manufacturing is simple.
【0023】なお、上述の例では、エンジンにセンター
部材12を連結し、車体に外筒14側を連結するような
構成としたが、この逆の構成としてもよい。また、切欠
凹部は軸直交方向に関し平行あるいは外方に向かって拡
開されるような内壁面により構成されていればよく、ま
た軸方向にも開放されるよう形成されてもよい。また、
上述の例では、車両に搭載されるエンジンの防振を目的
としたが、本発明の防振装置は他の用途にも用いられる
ことはいうまでもなく、また、部材の形状等も実施例の
ものに限定されるものではない。Although the center member 12 is connected to the engine and the outer cylinder 14 side is connected to the vehicle body in the above-mentioned example, the reverse structure may be adopted. Further, the notch concave portion may be formed by an inner wall surface that is parallel or outwardly widened in the direction orthogonal to the axis, or may be formed so as to be opened in the axial direction. Also,
In the above-mentioned example, the purpose is to prevent the engine mounted on the vehicle from vibration, but it goes without saying that the vibration control device of the present invention can be used for other purposes as well, and the shape of the members and the like are also different from those of the embodiment. It is not limited to ones.
【0024】[0024]
【発明の効果】以上説明したように、本発明は上述の構
成により、簡易で安価な構成で製造が容易となって、異
物の侵入・滞留が防止可能で且つ広範囲な帯域の振動を
有効に吸収し得るという優れた効果が生じる。As described above, according to the present invention, the above-described structure facilitates manufacturing with a simple and inexpensive structure, can prevent foreign matter from entering and staying, and effectively vibrates in a wide band. The excellent effect that it can be absorbed occurs.
【図1】本発明の一実施例を示した縦断面図である。FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.
【図2】本発明の一実施例を示した平面図である。FIG. 2 is a plan view showing an embodiment of the present invention.
【図3】本発明の一実施例にかかるゴム状弾性体の製造
を説明する縦断面図である。FIG. 3 is a vertical cross-sectional view illustrating the production of a rubber-like elastic body according to an example of the present invention.
【図4】従来技術を示した縦断面図である。FIG. 4 is a vertical cross-sectional view showing a conventional technique.
【図5】従来技術を示した縦断面図である。FIG. 5 is a vertical sectional view showing a conventional technique.
【図6】従来技術を示した縦断面図である。FIG. 6 is a vertical cross-sectional view showing a conventional technique.
【図7】従来技術を示した縦断面図である。FIG. 7 is a vertical sectional view showing a conventional technique.
12 センター部材 14 外筒 18 弾性体 20 切欠凹部 22 薄肉部 24 ダイヤフラム 26A受圧液室(液室) 26B副液室(液室) 12 Center Member 14 Outer Cylinder 18 Elastic Body 20 Notch Recess 22 Thin-walled Part 24 Diaphragm 26A Pressure-receiving Liquid Chamber (Liquid Chamber) 26B Sub-Liquid Chamber (Liquid Chamber)
Claims (1)
される外筒と、振動発生部および振動受部の他方に連結
されるセンター部材と、前記外筒と前記センター部材と
の間に介在配設されたゴム状弾性体と、このゴム状弾性
体を隔壁の一部とし且つ液体が封入された液室とを備え
た防振装置であって、前記液室に臨む前記ゴム状弾性体
の一部が肉厚の薄い薄肉部となるよう、前記液室とは反
対側となる前記ゴム状弾性体部分に切欠凹部を設け、さ
らに、この切欠凹部は少なくとも軸直交方向外方に向か
って開放されるよう凹設されてなることを特徴とする防
振装置。1. An outer cylinder connected to one of the vibration generator and the vibration receiver, a center member connected to the other of the vibration generator and the vibration receiver, and between the outer cylinder and the center member. An anti-vibration device comprising a rubber-like elastic body interposed and a liquid chamber in which the rubber-like elastic body is part of a partition wall and liquid is sealed, wherein the rubber-like elastic body faces the liquid chamber. A cutout recess is provided in the rubber-like elastic body portion on the side opposite to the liquid chamber so that a part of the body becomes a thin and thin portion, and the cutout recess extends at least outward in the direction orthogonal to the axis. The anti-vibration device is characterized in that it is recessed so as to be opened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16270895A JPH0914333A (en) | 1995-06-28 | 1995-06-28 | Vibration control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16270895A JPH0914333A (en) | 1995-06-28 | 1995-06-28 | Vibration control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0914333A true JPH0914333A (en) | 1997-01-14 |
Family
ID=15759792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16270895A Pending JPH0914333A (en) | 1995-06-28 | 1995-06-28 | Vibration control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0914333A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003038300A1 (en) * | 2001-10-30 | 2003-05-08 | Lord Corporation | Mount having integrated damper and load carrying spring |
EP1113187A3 (en) * | 1999-12-28 | 2003-08-27 | Yamashita Rubber Kabushiki Kaisha | Fluid-sealed anti-vibration device |
JP2010106866A (en) * | 2008-10-28 | 2010-05-13 | Tokai Rubber Ind Ltd | Fluid sealed vibration control device |
DE102008015199B4 (en) * | 2007-03-22 | 2011-07-07 | Honda Motor Co., Ltd. | Sealed liquid vibration isolation device |
JP2012122508A (en) * | 2010-12-06 | 2012-06-28 | Toyo Tire & Rubber Co Ltd | Vibration control device |
-
1995
- 1995-06-28 JP JP16270895A patent/JPH0914333A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1113187A3 (en) * | 1999-12-28 | 2003-08-27 | Yamashita Rubber Kabushiki Kaisha | Fluid-sealed anti-vibration device |
WO2003038300A1 (en) * | 2001-10-30 | 2003-05-08 | Lord Corporation | Mount having integrated damper and load carrying spring |
US6752389B2 (en) | 2001-10-30 | 2004-06-22 | Lord Corporation | Mount having integrated damper and load carrying spring |
DE102008015199B4 (en) * | 2007-03-22 | 2011-07-07 | Honda Motor Co., Ltd. | Sealed liquid vibration isolation device |
US8382079B2 (en) | 2007-03-22 | 2013-02-26 | Honda Motor Co., Ltd. | Liquid sealed vibration isolating device |
JP2010106866A (en) * | 2008-10-28 | 2010-05-13 | Tokai Rubber Ind Ltd | Fluid sealed vibration control device |
JP2012122508A (en) * | 2010-12-06 | 2012-06-28 | Toyo Tire & Rubber Co Ltd | Vibration control device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3461913B2 (en) | Anti-vibration device | |
JP5014329B2 (en) | Vibration isolator | |
JP2010031989A (en) | Fluid-sealed vibration control device | |
US4907786A (en) | Fluid-filled elastic mount having partition member which includes a double-layered section | |
JP2505503Y2 (en) | Fluid-filled mounting device | |
JPH0932878A (en) | Vibration preventing device | |
JP3915531B2 (en) | Fluid filled anti-vibration mount | |
US4850578A (en) | Fluid-filled elastic mount for damping a wide frequency range of vibrations | |
JP2007177975A (en) | Vibration damper | |
JP3212047B2 (en) | Liquid filled type vibration damping device | |
JP4563197B2 (en) | Vibration isolator | |
JPH0914333A (en) | Vibration control device | |
JP2005113954A (en) | Vibration damping device | |
JP2010031988A (en) | Fluid-sealed vibration control device | |
JPH01224544A (en) | Fluid seal type vibrationproof device | |
JPH03288036A (en) | Fluid filled-type mount device | |
JP5114799B2 (en) | Vibration isolator | |
JPS63266242A (en) | Fluid-sealed type mount device | |
JPH0716126Y2 (en) | Fluid-filled mounting device | |
JPH0771506A (en) | Ff type automobile engine supporting device | |
JPH0389043A (en) | Fluid-filled vibration isolating mount | |
JP2007177972A (en) | Vibration damper | |
JP2004204964A (en) | Fluid enclosed-vibration isolator | |
JP2569561Y2 (en) | Partition member for fluid-filled mount | |
JPH07190130A (en) | Fluid-filled mount and manufacture thereof |