JPS62113934A - Liquid damping type vibration-proof mount - Google Patents
Liquid damping type vibration-proof mountInfo
- Publication number
- JPS62113934A JPS62113934A JP25417185A JP25417185A JPS62113934A JP S62113934 A JPS62113934 A JP S62113934A JP 25417185 A JP25417185 A JP 25417185A JP 25417185 A JP25417185 A JP 25417185A JP S62113934 A JPS62113934 A JP S62113934A
- Authority
- JP
- Japan
- Prior art keywords
- partition wall
- orifice
- cylinder
- elastic
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/18—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper characterised by the location or the shape of the equilibration chamber, e.g. the equilibration chamber, surrounding the plastics spring or being annular
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
【発明の詳細な説明】
（Ｍ業上の利用分野）
本発明は自１１ＩＪ車のエンジン側で発生するＳ肋を車
体側に伝えさせないためにエンジンと車体との間に介在
せしめる液体減衰式防振マウントに関する。Detailed Description of the Invention (Field of Application in M Industry) The present invention is a liquid damping type barrier that is interposed between the engine and the car body in order to prevent the S ribs generated on the engine side of the 11IJ car from being transmitted to the car body side. Regarding the swing mount.
（従来の技術）
この種の防振マウントで従来のものは、例えば実開昭５
７−７０５３４号公報によって明らかなように、マウン
ト中心軸、すなわち、取付軸よ平行でマウントの中心に
なる＠を基準として・マウント中心軸方向に並べた２つ
の液室をＭする薄着てあって、第５図々示の如くオリフ
ィス（５）′ヲ有する仕切壁１４ ＋’ ｋ介して液室
ｔ７＋ｆ、 １ｓ 、ｆが上下に配役さ名ている。(Prior art) Conventional anti-vibration mounts of this type include, for example,
As is clear from Publication No. 7-70534, two liquid chambers arranged in the direction of the mount center axis are thinly attached with reference to the mount center axis, that is, parallel to the mounting axis and at the center of the mount. As shown in FIG. 5, liquid chambers t7+f, 1s, and f are arranged above and below through a partition wall 14+'k having an orifice (5)'.
（発明が解決しようとする問題点）
上述する従来の防振マウントは、液室１７１’、 ＋８
１’が取付軸方向に並んでいるのでエンジンと車体側と
の間の寸法（高さ寸法）が大きくなる傾向があり、機械
室のコンパクト化を阻害するおそれがあった。(Problems to be Solved by the Invention) The conventional anti-vibration mount described above has the liquid chambers 171', +8
1' are lined up in the mounting axis direction, the dimension (height dimension) between the engine and the vehicle body side tends to increase, which may impede the downsizing of the machine room.
さらに両液室＋７１’、 ＋８１’ｉ仕切らせる仕切壁
（４）′が一般に金属板などの剛性体′５ｃ要素として
いて、そのために、高周波域の振動に対しては仕切壁が
変形し難くなって、オリフィスＩＦ＋ｌ”２通じての流
体の移動が殆どなくて抵抗が大きく、その結果、液室＋
７１’。Furthermore, the partition wall (4)' that separates both the liquid chambers +71' and +81'i is generally made of a rigid element such as a metal plate, which makes it difficult for the partition wall to deform due to vibrations in the high frequency range. Therefore, there is almost no movement of fluid through the orifice IF+l"2, resulting in large resistance, and as a result, the fluid chamber +
71'.
＋ｓｆの液圧が上昇して、動バネ定数全大きくさせるこ
ととなり、車体に振動が伝播して騒音を発し不快感２与
える欠点があった。The +sf hydraulic pressure increases and the dynamic spring constant is increased, which causes vibrations to propagate to the vehicle body, producing noise and causing discomfort.
Ｃのように従来のものが多くの欠点を有している事実に
鑑みて、本発明は成されたものであって、この種の防振
マウントにおける液室構造を取付軸に直角な方向に２室
が設けられてなる構成とすることによって、高さ寸法の
縮少をはかり、また、仕切壁も弾性栃造となし得ること
によって高周波域での振動に対する仙バネ定数を小さく
保持せ（２め、もって機械室のコンパクト化及び車室内
の１腎粛化を果さんとするものである。The present invention has been made in view of the fact that conventional types such as C have many drawbacks. By adopting a configuration with two chambers, the height dimension can be reduced, and since the partition wall can also be made of elastic Tochizukuri, the spring constant against vibration in the high frequency range can be kept small (2 The aim is to make the machine room more compact and reduce the number of compartments in the vehicle compartment to one.
（問題点を解決するための手段）
しかして本発明は面対向させて設け、一方がエンジン側
、他方が車体側に夫々結合される１組の板状部材ｆｌ＋
、 １２＋と、それ等両板状部材ｉｌｌ、 ＋２）間に
亘らせ固着した筒状のゴム外筒１３）と、弾性筒体に形
成されて前記ゴム外筒＋３）内に同心に介設せしぬ、か
つ、両端部を前記各板状部材＋１１ 、 ＋２）に夫々
固着せしめた仕切壁（４）と、前記仕切壁１４）の筒軸
方向中央付近に該筒軸に直交させて貫設した少くとも１
つのオリフィス＋５）と、略截頭円錐形のゴムよりなり
、前記仕切壁（４）の筒内で大径側端面を前記各板状部
材＋１１． ＋２）に夫々固着せしめた１組の弾性突起
＜ＩＥ １６１ 、１６１と、前記ゴム外筒１３）と前
記仕切壁（４）との間及び該仕切壁１４）の筒内に設け
られて・液体が充填されると共に、前記オリアイス＋５
） ｉ介し相互に連通している外室（７）及び内室（８
１とによって液体減衰式防振マウントを構成したもので
ある。(Means for Solving the Problems) Accordingly, the present invention includes a set of plate-like members fl
, 12+, and both plate-like members ill, +2), a cylindrical rubber outer cylinder 13) which is fixed between them, and which is formed into an elastic cylinder and is interposed concentrically within the rubber outer cylinder +3). A partition wall (4) having both ends fixed to the respective plate-like members +11 and +2), and a partition wall 14) extending perpendicularly to the cylinder axis near the center of the partition wall 14). At least 1
The large-diameter end face of each of the plate-like members +11. A pair of elastic protrusions <IE 161 , 161 fixed to the rubber outer cylinder 13 ) and the partition wall ( 4 ) and within the cylinder of the partition wall 14 is filled, and the Oriice+5
) The outer chamber (7) and the inner chamber (8
1 constitutes a liquid damping type vibration isolation mount.
本発明はさらに、前記オリスイス（５）ヲ宥する筒部分
？厚手に、かつこの筒部分に隣接する筒部分を薄手に夫
々形成した弾性筒体によって前記仕切壁（４）全形成下
ることを好適な実施態様とするものであり、また、無荷
重状態で軸方向の予圧縮が付与されてなる仕切壁とした
構成も好適な実施態様とする。The present invention further provides a cylindrical portion that accommodates the oriswiss (5). In a preferred embodiment, the partition wall (4) is entirely formed by an elastic cylindrical body having a thick cylindrical body and a thin cylindrical part adjacent to the cylindrical part, and the shaft is supported under no load. A configuration in which the partition wall is pre-compressed in the direction is also a preferred embodiment.
（作用）
本発明は液室である外室（７１と内室（８）とを取付軸
に対し同心に配置したことにより、取付軸に直交する断
面積全増大する代りに取付軸方向の高さ寸法を大巾に短
くすることが可能であって取付スペースの狭小化が果さ
れる。(Function) By arranging the outer chamber (71) and the inner chamber (8), which are liquid chambers, concentrically with respect to the mounting axis, the cross-sectional area perpendicular to the mounting axis is increased, but the height in the direction of the mounting axis is increased. It is possible to significantly shorten the length, and the installation space can be narrowed.
また、仕切壁（４）が弾性体であって高周波域の振動に
対してオリフィス（５）まわりの変形が比較的容易に行
われることがら液圧上昇？防いで仙）ゞネ定数を大きく
させないようにし得る。Furthermore, since the partition wall (4) is an elastic body, the area around the orifice (5) is relatively easily deformed in response to vibrations in the high frequency range, which may cause an increase in hydraulic pressure. This can be prevented to prevent the constant from increasing.
なお、この点はオリフィス１５）に隣接する筒部分を薄
手に形成することによって−ｆｊ ！Ｊｆｉ著なものと
なる。Note that this point can be solved by making the cylindrical portion adjacent to the orifice 15) thinner. Written by Jfi.
さらに本発明は仕切壁（４）に予圧縮を与えることによ
って、引張１回の荷重が作用したときに板状部材１１＋
、 Ｆ２）とゴム外筒（３）との結合部のシールを確実
なものとして、低周波振動に対する減衰特性の安定化を
果し得る。Furthermore, the present invention provides precompression to the partition wall (4), so that when a single tensile load is applied, the plate member 11+
, F2) and the rubber outer cylinder (3), thereby stabilizing the damping characteristics against low frequency vibrations.
（実施例）
’！１図乃至第３図は本発明の１例に係る断面示正面図
であり、各図においてＩＩ＋ 、 ＋２）は１組の板状
部材で金属板からなり、適宜の間隔を存し互いに面対向
させて平行に設けられるもので、一方の板状部材ＩＩＩ
ハエンジン側の邪材にポル） Ｆｌｌ＋によって固定
結合され、他方の板状部材（２）は車体側の邪材にポル
）＋１２）によって固定結合される。(Example) '! 1 to 3 are cross-sectional front views according to an example of the present invention, and in each figure, II+, +2) are a pair of plate-like members made of metal plates, facing each other at appropriate intervals. one of the plate-like members III
The other plate-like member (2) is fixedly connected to the material on the engine side by means of the material Fll+, and the other plate member (2) is fixedly connected to the material on the vehicle body side by means of the material.
１３）は厚手のゴムからなるゴム外筒であって、両端部
は板状部材＋１１． ＋２）に対して夫々加硫接着処理
によって固着一体させ、両板状部材ｉｌ＋、 ＋２）間
に亘らせて設けている。13) is a rubber outer cylinder made of thick rubber, and both ends are plate-shaped members +11. +2) are fixed and integrated with each other by vulcanization adhesive treatment, and are provided so as to span between both plate-like members il+ and +2).
従って、このゴム外筒１３（が両板状部材ｆｉ＋ 、
［２＋ ｉ連結すると共に、一方で発生した振動に対し
てしゃ断行性を有していることは言うまでもない。Therefore, this rubber outer cylinder 13 (both plate-like members fi+,
[2+ It goes without saying that it is connected and has the ability to block vibrations generated on one side.
このように板状部材＋１１． ＋２）とゴム外筒１３）
とからなる密閉構造体の内部には、仕切壁（４）と弾性
突起体１６１．１８１と全介在させているが、仕切壁（
４）は所定厚さの周壁を持つ直円筒形あるいは鼓形の筒
体に形成していて、ゴムを材料とした弾性筒体であって
、両端部を各板状部材ｆｉ＋、 ＋２）に対し加硫接着
処理によって固着一体させて、前記ゴム外筒（３）に対
し同心となして設けている。In this way, the plate member +11. +2) and rubber outer cylinder 13)
The partition wall (4) and the elastic projections 161 and 181 are completely interposed inside the sealed structure consisting of the partition wall (
4) is formed into a right cylindrical or hourglass-shaped cylinder with a peripheral wall of a predetermined thickness, and is an elastic cylinder made of rubber, with both ends attached to each plate member fi+, +2). It is fixed and integrated by vulcanization adhesive treatment and is provided concentrically with respect to the rubber outer cylinder (3).
−１、弾性突起体＋６１． ＋６１は前記ゴム外筒【３
）と略々同一硬度を有するゴムからなっていて、略截頭
円錐形金成して相互に同形状のものの一対全、一方は大
径側端面をエンジン側の板状部材ｉｌ＋に固着せしめ、
他方は同じく大径側端面を車体側の板状部材（２）に固
着せしめている。-1, elastic protrusion +61. +61 is the rubber outer cylinder [3
) are made of rubber having approximately the same hardness as the truncated conical metal, and are of the same shape, one of which has its large diameter end surface fixed to the plate-like member il+ on the engine side,
The other end has its large diameter end face fixed to a plate member (2) on the vehicle body side.
上記各弾性突起体１６１． ＋６１は、周面が前記仕切
壁１４）の端部側内面に密接するように位置づけられて
、仕切壁（４）とによって内室（８）を囲繞する壁とし
て作用すると共に、仕切壁＋４］が変形により平たく潰
されることが無いように内室（８］の空間保持体として
機能している。Each of the elastic protrusions 161. +61 is positioned so that its peripheral surface is in close contact with the inner surface on the end side of the partition wall 14), and acts as a wall surrounding the inner chamber (8) with the partition wall (4), It functions as a space holder for the inner chamber (8) so that it will not be flattened due to deformation.
１Ｆ＋１は絞り孔として作用するオリアイスであって、
仕切壁（４）の筒軸方向中央付近に該筒軸に直交させて
厚肉部分に貫通させ設けており、この筒軸方向中央付近
の周壁に１個または分散させた複数個設けている。1F+1 is an oriais that acts as an aperture hole,
It is provided perpendicularly to the cylinder axis near the center of the partition wall (4) in the direction of the cylinder axis and penetrates through the thick part, and one or a plurality of partitions are provided on the peripheral wall near the center of the cylinder axis.
かかる構造を有する防振マウントは、ゴム外筒１３）と
仕切壁（４）と、両板状部材＋ｌ＋、 ＋２）とによっ
て液密に囲繞されてなる環状筒形の空間が形成され、ま
た、仕切壁（４）と弾性突起体＋６１．１６１とによっ
て液密に囲繞されてなる筒形空間が形成されるが、それ
等同空間は取付軸すなわちポル）ｆｌｌ＋、＋１２）の
中心を通る軸に対し同心の配置となって、外側の環状筒
形をなす空間が外室（７１となり、内側の筒形空間が内
室（８］となるのであるが、それ等画室［７＋ 、 ＋
８１は仕切壁（４）に設けたオリフィス（５）によって
互いに連通されている。In the vibration isolation mount having such a structure, an annular cylindrical space is formed that is liquid-tightly surrounded by the rubber outer cylinder 13), the partition wall (4), and both plate-like members +l+, +2). A cylindrical space is formed that is liquid-tightly surrounded by the partition wall (4) and the elastic protrusion +61. They are arranged concentrically, and the outer annular cylindrical space becomes the outer chamber (71), and the inner cylindrical space becomes the inner chamber (8), but these compartments [7+, +
81 are communicated with each other through an orifice (5) provided in the partition wall (4).
そしてこの両室ｆ７１．１１１１１内に不凍液などの液
体が充填されるのである。Both chambers f71.11111 are filled with a liquid such as antifreeze.
かく構成した液体減衰式防振マウントは、車体とエンジ
ンとの間に介設して、板状部材＋１１ ’ｉｉエンジン
架台に、板状部材＋２）を車体フレームに夫々固定し結
合はせて使用されるが、エンジン駆動により低周波機動
が発生し圧縮方向の荷重が防振マウントに作用した場合
には、第２図に示す如くゴム外筒１３）は軸方向が圧縮
されて中間部が膨れ出るように変形する−１、仕切壁（
４）は上下両端部間の距離が短くなって筒が縮まるよう
に変形する。The liquid damping type anti-vibration mount thus constructed is used by interposing the plate member +11'ii between the vehicle body and the engine, and fixing and connecting the plate member +11'ii) to the engine stand and the plate member +2) to the vehicle body frame, respectively. However, when low-frequency motion occurs due to engine drive and a load in the compression direction acts on the vibration isolation mount, the rubber outer cylinder 13) is compressed in the axial direction and the middle part swells, as shown in Figure 2. Transform to appear -1, Partition wall (
4) is deformed so that the distance between the upper and lower ends becomes shorter and the cylinder becomes smaller.
従って内室（８１が容積減少し、外室（７１が容積増加
するために液体はｇｌＪ２図に矢示線で示す通り、内室
（８］から外室（７１に回ってオリフィス１５）内を流
動する。Therefore, since the volume of the inner chamber (81) decreases and the volume of the outer chamber (71 increases), the liquid flows from the inner chamber (8) to the outer chamber (71 and into the orifice 15) as shown by the arrow line in the glJ2 diagram. Flow.
逆に引っ張り方向の荷重が作用した場合には、第３図に
示すようにゴム外筒＋３）及び仕切壁１４ンは軸方向に
伸ばされ、前者のゴム外筒１３）は中間部が内方にくび
れるように変形するので、外室（７１は容積減少し、内
室（８）は容積増加するために液体は第３図に矢示線で
示す通り、外室（７１から内室（８］に回ってオリフィ
ス１５）内を流動する。Conversely, when a load is applied in the tensile direction, the rubber outer cylinder +3) and the partition wall 14 are stretched in the axial direction, as shown in Fig. 3, and the middle part of the former rubber outer cylinder 13) is stretched inward. As the outer chamber (71) deforms in a constricted manner, the volume of the outer chamber (71) decreases and the volume of the inner chamber (8) increases, so the liquid flows from the outer chamber (71) to the inner chamber (8) as shown by the arrow line in FIG. ] and flows through the orifice 15).
かくして液体がオリフィス１５）内全振動の度に反転流
動することから防振マウントは低周波振１Ｍ１に対し有
効な減衰作用をな丁ものである。Since the liquid flows in the orifice 15) in reverse every time there is a total vibration, the anti-vibration mount has an effective damping effect on the low-frequency vibration 1M1.
一方、高周波撮動が発生した場合には、オリフィス１５
＋ ｉ通じての液体の出入りが殆どなさｒＬないので前
記画室＋７１． ＋８１の内圧が漸増してぐるが、前記
仕切壁（４］を弾性筒体により形成しているのでオリフ
ィス１５）を有する中央付近部分の筒体が径全変化させ
る方向に容易に動くことができるので、この変形によっ
て前記内圧の上昇全防止し、かぐして朝バネ定数の増加
を抑制し得る。On the other hand, when high frequency imaging occurs, the orifice 15
Since there is almost no liquid going in and out through +i, the above-mentioned compartment +71. The internal pressure of +81 increases gradually, but since the partition wall (4) is formed of an elastic cylinder, the cylinder near the center having the orifice 15) can easily move in the direction of changing the entire diameter. Therefore, this deformation can completely prevent the internal pressure from increasing and thereby suppress the increase in the spring constant.
ところで第１図乃至第３図に示す実施例は、オリフィス
１５）の流体に対する抵抗全適正な値に設定し得るよう
にするべく、通路の長さを十分とることが可能なように
、オリフィス１５）が設けられた部分の仕切壁（４］を
厚くさせる−１、この厚手の筒部の用り
分輪噛ｉで夫々隣接する筒部分（４）１． （９１を薄
くさせた構造となしており、かぐ構成することによりオ
リフィス（６１を有する中央部の筒部分が容易かつ大き
く仙〈ことが可能となって動バネ定数抑制作用をより一
層発揮させることが可能である。By the way, in the embodiment shown in FIGS. 1 to 3, the orifice 15) is designed to have a sufficient passage length so that the resistance to the fluid of the orifice 15) can be set to an appropriate value. ) The partition wall (4) of the part where the thick cylinder part is provided is made thicker (1), and the cylinder parts (4) 1. Due to the configuration, the central cylindrical portion having the orifice (61) can be easily and largely expanded, and the dynamic spring constant suppressing effect can be further exerted.
なお、各図中１１０１は前記薄手筒部（ｇ）、 １９１
に隣接する筒部内に埋設してなる固定用リングであって
、仕切壁（４）が振動により変型した際に平たく漬れる
如き過大で異常な変型が生じないように保持するだめの
部材である。In addition, 1101 in each figure is the thin cylinder part (g), 191
This is a fixing ring embedded in the cylindrical part adjacent to the partition wall (4), and is a member for holding the partition wall (4) to prevent excessive and abnormal deformation such as flattening when the partition wall (4) is deformed due to vibration. .
また、この実施例は前記仕切壁１４）に、無荷重の状態
で軸方向に若干の予圧縮を与えて組付けており、かかる
予圧縮を与えることによって、仕切壁（４）は引張方向
の荷重に対して板状部材＋１１ 、 ［２＋とゴム外筒
＋３）との結合部のシール性をより確実なものとし、低
周波振動に対する減衰特性の安定化をはかり得る如く形
成している。Furthermore, in this embodiment, the partition wall (4) is assembled with a slight precompression in the axial direction under no load, and by applying such precompression, the partition wall (4) is assembled in the tensile direction. The sealing properties of the joint between the plate members +11, [2+ and the rubber outer cylinder +3) are made more reliable against loads, and the damping characteristics against low frequency vibrations are stabilized.
次に＠４図は本発明の他実施例を示していて、この例は
前記弾性突起体１６１ ＊ １６１ ｆ突合わせてつな
いで一体化したのと同じ形態の弾性突起体１６１”ｉｆ
！いた点で前述した実施例と構造が異な〜るだけであっ
て、その他の構造ならびに作用については同じであるの
で説明は省略する。Next, Figure @4 shows another embodiment of the present invention, and this example has elastic protrusions 161"if which have the same form as the elastic protrusions 161*161f which are butt-connected and integrated.
! This embodiment differs only in structure from the above-mentioned embodiments in that respect, and the other structures and functions are the same, so a description thereof will be omitted.
（発明の効果）
本発明は以上説明したように、流体を充填せしめ、かつ
オリフィス］５）ヲ通じ連通してなる外室（７）と内室
（８］とが中心軸となる取付軸に対して同心的に配設さ
れた構造であるので、取付軸方向に隣り合った２室を有
する従来の防振マウントに比して取付軸長を短縮させる
ことが可能であり、防振マウントの設置スペースを縮減
して機械室の所要空間をより狭く改善することができ車
両のコンパクト化をはかる点で頗る有用である。(Effects of the Invention) As explained above, the present invention is characterized in that the outer chamber (7) and the inner chamber (8), which are filled with fluid and communicated through the orifice [5], are attached to a mounting shaft having a central axis. Since it has a structure in which the vibration isolating mounts are arranged concentrically with each other, it is possible to shorten the mounting axis length compared to the conventional vibration isolating mount which has two chambers adjacent to each other in the mounting axis direction. This is extremely useful in terms of reducing the installation space and reducing the space required for the machine room, making the vehicle more compact.
さらに前記画室＋７１． ＋８１を仕切るための仕切壁
（４］が弾性筒体により形成されて軸方向の圧縮、引張
に対して容易、確実に変形し得ることから、高周波振動
による内圧の上昇を速やかに抑制して、動的バネ定数を
増大させない効果を奏し、従って、車室内への騒音の伝
播を確実にしゃ断すると共に、乗り心地の改善を期し得
る特長を有する。Furthermore, the above-mentioned painting room +71. Since the partition wall (4) for partitioning the +81 is formed of an elastic cylinder and can be easily and reliably deformed under axial compression and tension, it can quickly suppress the increase in internal pressure due to high frequency vibration. It has the effect of not increasing the dynamic spring constant, and therefore has the advantage of reliably blocking the propagation of noise into the vehicle interior and improving ride comfort.
第１図は本発明の１実施例に係る断面不正面図・第２図
及び第３図は同じく圧縮変形及び伸長変形を夫々示す断
面不正面図、’！４図は本発明の他実施例に係る断面不
正面図、第５図は従来の防振マウントの断面不正面図で
ある。
ｉｌｌ ＋２）・・・板状部材、（３）・・・ゴム外筒
。
（４）・・・仕切１１． １５）・・・オリフィス。
１６１・・・弾性突起体、（７１・・・外室。
（８１・・・内室。
第１図
第２図FIG. 1 is a sectional irregular view according to an embodiment of the present invention, and FIGS. 2 and 3 are sectional irregular views showing compression deformation and elongation deformation, respectively. FIG. 4 is a sectional rough view of another embodiment of the present invention, and FIG. 5 is a sectional rough view of a conventional anti-vibration mount. ill +2)...Plate member, (3)...Rubber outer cylinder. (4)...Partition 11. 15)...Orifice. 161... Elastic protrusion, (71... Outer chamber. (81... Inner chamber. Figure 1 Figure 2
Claims (1)
側に夫々結合される１組の板状部材（１）、（２）と、
それ等両板状部材（１）、（２）間に亘らせ固着した筒
状のゴム外筒（３）と、弾性筒体に形成されて前記ゴム
外筒（３）内に同心に介設せしめ、かつ、両端部を前記
各板状部材（１）、（２）に夫々固着せしめた仕切壁（
４）と、前記仕切壁（４）の筒軸方向中央付近に該筒軸
に直交させて貫設した少くとも１つのオリフィス（５）
と、略截頭円錐形のゴムよりなり、前記仕切壁（４）の
筒内で大径側端面を前記各板状部材（１）、（２）に夫
々固着せしめた１組の弾性突起体（６）、（６）と、前
記ゴム外筒（３）と前記仕切壁（４）との間及び該仕切
壁（４）の筒内に設けられて、液体が充填されると共に
、前記オリフィス（５）を介し相互に連通している外室
（７）及び内室（８）とからなることを特徴とする液体
減衰式防振マウント。 ２、仕切壁（４）が、前記オリフィス（５）を有する筒
部分を厚手に、かつ、この筒部分に隣接する筒部分を薄
手に夫々形成した弾性筒体からなる特許請求の範囲第１
項記載の液体減衰式防振マウント。 ３、仕切壁（４）が、無荷重状態で軸方向の予圧縮が付
与されてなる特許請求の範囲第１項又は第２項記載の液
体減衰式防振マウント。[Scope of Claims] 1. A pair of plate-like members (1) and (2) that are provided face-to-face, one of which is connected to the engine side and the other to the vehicle body, respectively;
A cylindrical rubber outer cylinder (3) is fixed between the plate members (1) and (2), and a rubber outer cylinder (3) formed as an elastic cylinder is inserted concentrically within the rubber outer cylinder (3). a partition wall (
4), and at least one orifice (5) penetrating orthogonally to the cylinder axis near the center of the partition wall (4) in the cylinder axis direction.
and a set of elastic protrusions made of rubber having a substantially truncated conical shape, the large diameter side end surfaces of which are fixed to each of the plate members (1) and (2), respectively, within the cylinder of the partition wall (4). (6), (6) are provided between the rubber outer cylinder (3) and the partition wall (4) and in the cylinder of the partition wall (4), and are filled with a liquid and the orifice A liquid damping type vibration isolation mount comprising an outer chamber (7) and an inner chamber (8) which communicate with each other via (5). 2. The partition wall (4) is made of an elastic cylindrical body in which a cylindrical portion having the orifice (5) is thick and a cylindrical portion adjacent to this cylindrical portion is thin.
Liquid-damped anti-vibration mount as described in section. 3. The liquid damping vibration isolation mount according to claim 1 or 2, wherein the partition wall (4) is precompressed in the axial direction in an unloaded state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25417185A JPS62113934A (en) | 1985-11-13 | 1985-11-13 | Liquid damping type vibration-proof mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25417185A JPS62113934A (en) | 1985-11-13 | 1985-11-13 | Liquid damping type vibration-proof mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62113934A true JPS62113934A (en) | 1987-05-25 |
Family
ID=17261217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25417185A Pending JPS62113934A (en) | 1985-11-13 | 1985-11-13 | Liquid damping type vibration-proof mount |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62113934A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6474336A (en) * | 1987-06-27 | 1989-03-20 | Mitsubishi Motors Corp | Fluid mount |
| US5082252A (en) * | 1987-11-25 | 1992-01-21 | Honda Giken Kogyo Kabushiki Kaisha | Fluid-filled mount |
-
1985
- 1985-11-13 JP JP25417185A patent/JPS62113934A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6474336A (en) * | 1987-06-27 | 1989-03-20 | Mitsubishi Motors Corp | Fluid mount |
| US5082252A (en) * | 1987-11-25 | 1992-01-21 | Honda Giken Kogyo Kabushiki Kaisha | Fluid-filled mount |
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