JPH04107539U - Liquid-filled bushing - Google Patents
Liquid-filled bushingInfo
- Publication number
- JPH04107539U JPH04107539U JP1064691U JP1064691U JPH04107539U JP H04107539 U JPH04107539 U JP H04107539U JP 1064691 U JP1064691 U JP 1064691U JP 1064691 U JP1064691 U JP 1064691U JP H04107539 U JPH04107539 U JP H04107539U
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- cylinder member
- liquid
- inner cylinder
- elastic body
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 44
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 239000013013 elastic material Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
(57)【要約】
【構成】 内筒部材１に加硫接合された弾性体４によ
り、内筒部材１と外筒部材２とは一体的に連結されてい
る。弾性体４は、その内部に周方向に配設されオリフィ
ス孔８により連通された２つの液体室３をもっている。
内筒部材１に固定された第１ストッパ６は、液体室３に
面する外周面に遠心方向に膨出しその間に中央凹部６３
を形成する膨出部６４をもっている。この第１ストッパ
の中央凹部には膨出部よりさらに遠心方向に突出した頂
面をもつ弾性材料製の第２ストッパ７が固定されてい
る。
【効果】 内筒部材と外筒部材に相互作用する軸直角方
向の荷重を、第２ストッパと第２ストッパとで二段階に
受けとめることができるので、弾性材料製の第２ストッ
パの耐久性を確保しつつ、ストッパ特性を良好にでき
る。
(57) [Summary] [Structure] The inner cylinder member 1 and the outer cylinder member 2 are integrally connected by the elastic body 4 vulcanized and bonded to the inner cylinder member 1. The elastic body 4 has two liquid chambers 3 arranged circumferentially therein and communicated through an orifice hole 8.
The first stopper 6 fixed to the inner cylindrical member 1 bulges in the centrifugal direction on the outer peripheral surface facing the liquid chamber 3 and has a central recess 63 therebetween.
It has a bulge 64 that forms a bulge. A second stopper 7 made of an elastic material and having a top surface that protrudes further in the centrifugal direction than the bulge is fixed to the central concave portion of the first stopper. [Effect] The second stopper and the second stopper can receive the load in the direction perpendicular to the axis that interacts with the inner cylinder member and the outer cylinder member in two stages, so the durability of the second stopper made of elastic material is improved. It is possible to improve the stopper characteristics while ensuring the same.
Description
【０００１】0001
本考案は、例えば自動車の懸架装置に用いる液体封入式ブッシュに関する。 The present invention relates to a liquid-filled bushing used, for example, in a suspension system of an automobile.
【０００２】0002
従来の液体封入式ブッシュとして、図５及び図６に示すものが知られている。 この液体封入式ブッシュは、金属製の内筒部材９１と、内筒部材９１の中央部の 外周面に嵌合固定されその外周面にストッパゴム９２が固定されたリング状の金 属製ストッパ本体９３と、内筒部材９１の外側に所定間隔を隔てて配置されその 内周面にゴム層９４をもつ金属製外筒部材９５と、内筒部材９１と外筒部材９５ との間に介在されて両者を一体的に連結し、内筒部材９１と外筒部材９５との間 に周方向に配設された２つの液体室９６、９６を形成する弾性体９７とから構成 されている。なお、弾性体９７と外筒部材９５との間には、上記液体室９６に対 向する位置に２つの開口部が穿設された円筒状金具９８が配設されている。そし て、上記２つの液体室９６、９６は、この円筒状金具９８の２つの開口部を連結 する２つの縮径腕部９９と外筒部材９５との間に形成されたオリフィス孔１００ により連通されている。 As a conventional liquid-filled bush, those shown in FIGS. 5 and 6 are known. This liquid-filled bushing includes a metal inner cylinder member 91 and a central part of the inner cylinder member 91. A ring-shaped gold ring that is fitted and fixed to the outer circumferential surface and has a stopper rubber 92 fixed to the outer circumferential surface. A metal stopper main body 93 and a metal stopper body 93 arranged at a predetermined interval on the outside of the inner cylinder member 91. A metal outer cylinder member 95 having a rubber layer 94 on the inner peripheral surface, an inner cylinder member 91 and an outer cylinder member 95. is interposed between the inner cylinder member 91 and the outer cylinder member 95 to integrally connect them. and an elastic body 97 forming two liquid chambers 96, 96 disposed in the circumferential direction. has been done. Note that there is a gap between the elastic body 97 and the outer cylinder member 95 that corresponds to the liquid chamber 96. A cylindrical metal fitting 98 with two openings formed at opposite positions is disposed. stop The two liquid chambers 96, 96 connect the two openings of the cylindrical fitting 98. An orifice hole 100 formed between the two diameter-reduced arms 99 and the outer cylinder member 95 It is communicated by.
【０００３】 このような液体封入式ブッシュでは、弾性体９７の弾性作用やオリフィス孔１ ００を介して２つの液体室９６、９６間を流動する非圧縮性流体の流体作用によ り、内筒部材９１と外筒部材９５との間に相互作用する軸直角方向（液体室の対 向方向）振動に対して良好な減衰作用を果たす。また、内筒部材９１と外筒部材 ９５との間に過大荷重が作用した場合、ストッパ本体９３の外周面に固定された ストッパゴム９２が外筒部材９５に当接することにより、内筒部材９１及び外筒 部材９５を連結する弾性体９７の過大変形を阻止して、同弾性体９７の耐久性を 確保している。0003 In such a liquid-filled bushing, the elastic action of the elastic body 97 and the orifice hole 1 Due to the fluid action of the incompressible fluid flowing between the two liquid chambers 96, 96 via the In the direction perpendicular to the axis of interaction between the inner cylinder member 91 and the outer cylinder member 95 (the opposite direction of the liquid chamber), (direction) has a good damping effect against vibrations. In addition, the inner cylinder member 91 and the outer cylinder member 95, if an excessive load is applied between the stopper body 93 and the When the stopper rubber 92 comes into contact with the outer cylinder member 95, the inner cylinder member 91 and the outer cylinder The durability of the elastic body 97 is improved by preventing excessive deformation of the elastic body 97 that connects the members 95. It is secured.
【０００４】0004
【考案が解決しようとする課題】 そして、上記ストッパ機構においては、上記過大荷重入力に対して主にストッ パゴム９２で受けとめる構成であるため、繰り返し荷重を受けることでストッパ ゴム９２が損傷し、その耐久性が劣る問題がある。 この耐久性の対策として、ストッパゴム９２を薄くしてストッパゴム９２の自 由表面積を小さくすることにより、ストッパゴム９２が変形する絶対量を減少さ せて圧縮歪み量を小さくこともできる。しかし、この場合過大荷重入力によるス トッパゴム９２の当接時に、急激にばね定数が変化して衝撃的な振動伝達が起こ り、ストッパ特性（非線形特性）が悪化する。[Problem that the idea aims to solve] In the above-mentioned stopper mechanism, the stopper mechanism mainly stops in response to the above-mentioned excessive load input. Since the structure is such that the stopper rubber 92 receives the load, the stopper There is a problem that the rubber 92 is damaged and its durability is poor. As a measure for this durability, the stopper rubber 92 is made thinner and the stopper rubber 92 is made thinner. By reducing the free surface area, the absolute amount by which the stopper rubber 92 deforms can be reduced. It is also possible to reduce the amount of compressive strain. However, in this case, the shift due to excessive load input When the topper rubber 92 comes into contact, the spring constant changes suddenly and an impactful vibration is transmitted. As a result, the stopper characteristics (nonlinear characteristics) deteriorate.
【０００５】 本考案は上記実情に鑑みてなされたものであり、その技術課題はストッパゴム のストッパ特性及び耐久性の両方を充分に満足させることができる液体封入式ブ ッシュを提供することにある。[0005] This invention was made in view of the above circumstances, and the technical problem is the stopper rubber. A liquid-filled valve that fully satisfies both stopper characteristics and durability. The objective is to provide a
【０００６】[0006]
本考案の液体封入式ブッシュは、内筒部材と、該内筒部材の外側に所定間隔を 隔てて配置された外筒部材と、該内筒部材と該外筒部材との間に介在されて両者 を一体的に連結し、非圧縮流体が封入された液体室をもつ弾性体と、該内筒部材 に設けられ、該液体室に面する外周面に遠心方向に膨出してその間に中央凹部を 形成する膨出部をもつ第１ストッパと、該第１ストッパの該中央凹部に固定され 、該第１ストッパの膨出部よりさらに遠心方向に突出した頂面をもつ弾性材料製 の第２ストッパとからなることを特徴とする。 The liquid-filled bush of the present invention includes an inner cylindrical member and a predetermined interval on the outside of the inner cylindrical member. An outer cylindrical member disposed apart from each other, and an inner cylindrical member and an outer cylindrical member interposed between the two. an elastic body having a liquid chamber in which an incompressible fluid is sealed; and the inner cylinder member. The outer circumferential surface facing the liquid chamber bulges in the centrifugal direction and has a central recess between a first stopper having a bulge formed therein; and a first stopper fixed to the central recess of the first stopper. , made of an elastic material and having a top surface that protrudes further in the centrifugal direction than the bulging portion of the first stopper. and a second stopper.
【０００７】[0007]
本考案の液体封入式ブッシュは、内筒部材と外筒部材との間に相互作用する軸 直角方向の荷重が小さいときは、第１ストッパの中央凹部に固定された第２スト ッパの頂面が外筒部材に当接する。このとき、第２ストッパは弾性材料により構 成されているので、ばね定数が急激に変化して衝撃的な振動伝達が起こることが なく、柔らかい良好なストッパ特性が得られる。 The liquid-filled bushing of the present invention has a shaft that interacts between the inner cylinder member and the outer cylinder member. When the load in the right angle direction is small, the second stopper fixed to the central recess of the first stopper The top surface of the cap comes into contact with the outer cylinder member. At this time, the second stopper is made of an elastic material. Because of this structure, the spring constant does not change suddenly and shock vibration transmission occurs. Therefore, good soft stopper characteristics can be obtained.
【０００８】 また、内筒部材と外筒部材との間に相互作用する軸直角方向の荷重が大きいと きは、第１ストッパの膨出部が外筒部材に当接し、この膨出部で荷重を受けとめ る。このため、ストッパゴムを構成する第２ストッパが大荷重を受けることがな いので、第２ストッパの耐久性を確保することができる。[0008] Also, if the load in the direction perpendicular to the axis that interacts between the inner cylinder member and the outer cylinder member is large, When the bulge of the first stopper comes into contact with the outer cylindrical member, the bulge receives the load. Ru. Therefore, the second stopper that constitutes the stopper rubber will not receive a large load. Therefore, the durability of the second stopper can be ensured.
【０００９】[0009]
以下、本考案の具体的な実施例を図面に基づき説明する。 図１、図２は本実施例の液体封入式ブッシュに係り、図１は軸直角方向の断面 図、図２は図１のＡ−Ａ線に沿う軸方向の断面図である。 本実施例の液体封入式ブッシュは、内筒部材１と、内筒部材１の外側に所定間 隔を隔てて配置された外筒部材２と、内筒部材１の外周面に一体的に加硫接合さ れ非圧縮流体が封入された液体室３、３をもつ弾性体４と、その内周面に同弾性 体４が一体的に加硫接合され上記外筒部材２の内周側に配設された円筒状金具５ と、上記内筒部材１に嵌合固定された第１ストッパ６と、液体室３、３に面する 第１ストッパ６の外周面に固定された弾性材料製の第２ストッパ７、７とから構 成されている。 Hereinafter, specific embodiments of the present invention will be described based on the drawings. Figures 1 and 2 relate to the liquid-filled bush of this embodiment, and Figure 1 is a cross section in the direction perpendicular to the axis. 2 are axial cross-sectional views taken along line A-A in FIG. 1. The liquid-filled bush of this embodiment includes an inner cylinder member 1 and a predetermined space provided on the outside of the inner cylinder member 1. The outer cylindrical member 2 and the inner cylindrical member 1 are integrally vulcanized and bonded to the outer circumferential surfaces of the outer cylindrical member 2 and the inner cylindrical member 1, which are arranged at a distance from each other. An elastic body 4 having liquid chambers 3, 3 filled with incompressible fluid, and an elastic body 4 on its inner peripheral surface. A cylindrical metal fitting 5 whose body 4 is integrally vulcanized and arranged on the inner peripheral side of the outer cylinder member 2. , a first stopper 6 fitted and fixed to the inner cylinder member 1, and a first stopper 6 facing the liquid chambers 3, 3. It consists of second stoppers 7, 7 made of elastic material fixed to the outer peripheral surface of the first stopper 6. has been completed.
【００１０】 内筒部材１は、鉄等の金属により一定の肉厚で形成された円筒状部材である。 外筒部材２は、両端縮径部をもつ本体部２１と、本体部２１の両端からそれぞ れ径方向内方に張り出すフランジ２２、２２とからなり、これらは鉄等の金属か ら一体的に形成されている。また、外筒部材２の本体部２１の内周面にはゴム層 ２３が加硫接着されている。この外筒部材２は内筒部材１と同軸状に配設され、 外周面から絞り加工が施されている。これにより、外筒部材２及び内筒部材１間 に介在する弾性体４には圧縮応力が付与されている。0010 The inner cylinder member 1 is a cylindrical member made of metal such as iron and has a constant thickness. The outer cylindrical member 2 includes a main body portion 21 having diameter-reduced portions at both ends, and a main body portion 21 having diameter-reduced portions at both ends. It consists of flanges 22, 22 that protrude inward in the radial direction, and these are made of metal such as iron. They are integrally formed. Further, a rubber layer is provided on the inner peripheral surface of the main body portion 21 of the outer cylinder member 2. 23 is vulcanized and bonded. This outer cylinder member 2 is arranged coaxially with the inner cylinder member 1, Drawing processing is applied from the outer peripheral surface. As a result, between the outer cylinder member 2 and the inner cylinder member 1, Compressive stress is applied to the elastic body 4 interposed between the two.
【００１１】 弾性体４は、内筒部材１及び円筒状金具５に一体的に加硫接着され、ＮＲ等の ゴム材料よりなる。この弾性体４は、軸方向に連続的にのびて周方向に上下（図 １中）２つの液体室３、３を画成する両腕部４１、４１と、両腕部４１、４１の 軸方向の両端側に一体的に形成され上記液体室３、３の軸方向の両端を閉鎖する 閉鎖部４２、４２とから構成されている。なお、液体室３内には水やアルキレン グリコール、シリコンオイル等の非圧縮流体が封入されている。[0011] The elastic body 4 is integrally vulcanized and bonded to the inner cylinder member 1 and the cylindrical metal fitting 5, and is made of NR or the like. Made of rubber material. This elastic body 4 extends continuously in the axial direction and extends up and down in the circumferential direction (Fig. 1) Both arm parts 41, 41 defining the two liquid chambers 3, 3, and both arm parts 41, 41 It is integrally formed on both ends in the axial direction and closes both ends in the axial direction of the liquid chambers 3, 3. It is composed of closing parts 42, 42. Note that there is no water or alkylene in the liquid chamber 3. Incompressible fluids such as glycol and silicone oil are sealed.
【００１２】 円筒状金具５は、上記弾性体４の外周面全体を覆うとともに、上記液体室３に 対向する位置に２つの開口部が形成されている。また、上記弾性体４の両腕部４ １、４１の外周面を覆う円筒状金具５部分は一対の縮径連結部５１、５１となっ ている。そして、上記２つの液体室３、３は、この縮径締結部５１、５１と外筒 部材２との間に形成されたオリフィス孔８、８により連通されている。なお、円 筒状金具５の軸方向の両端は外筒部材２のフランジ２２、２２により規制されて いる。0012 The cylindrical metal fitting 5 covers the entire outer peripheral surface of the elastic body 4 and is connected to the liquid chamber 3. Two openings are formed at opposing positions. Further, both arm portions 4 of the elastic body 4 The cylindrical metal fitting 5 portion that covers the outer peripheral surface of 1 and 41 becomes a pair of diameter-reduced connecting parts 51 and 51. ing. The two liquid chambers 3, 3 are connected to the diameter-reduced fastening portions 51, 51 and the outer cylinder. It communicates with the member 2 through orifice holes 8, 8 formed between them. In addition, yen Both ends of the cylindrical metal fitting 5 in the axial direction are regulated by flanges 22, 22 of the outer cylinder member 2. There is.
【００１３】 第１ストッパ６は鉄等の金属よりなり、その中央を軸方向に貫通する中央孔６ ２を有している。また、遠心方向に膨出しその間に中央凹部６３を形成する膨出 部６４、６４が軸方向にのびて形成されている。この中央凹部６３及び膨出部６ ４、６４は第１ストッパ６の上下の軸対称位置に一組ずつ形成されている。なお 、第１ストッパ６は硬質樹脂等より形成することもできる。[0013] The first stopper 6 is made of metal such as iron, and has a central hole 6 passing through the center thereof in the axial direction. It has 2. Also, a bulge that bulges in the centrifugal direction and forms a central recess 63 therebetween. Portions 64, 64 are formed extending in the axial direction. This central recess 63 and bulge 6 4 and 64 are formed in pairs at axially symmetrical positions above and below the first stopper 6. In addition , the first stopper 6 can also be made of hard resin or the like.
【００１４】 第２ストッパ７、７は全体形状が略直方体で、上記弾性体４と同一材料で一体 的に成形されたものであり、第１ストッパ６の一対の中央凹部６３、６３にそれ ぞれ加硫接着されている。この第２ストッパ７、７は、第１ストッパ６の膨出部 ６４、６４よりさらに遠心方向に突出した頂面７１をもっている。なお、第２ス トッパ７は液体室３の上下方向高さの約半分の高さを有し、従来のものと比較し て２倍程度の高さを有している。[0014] The second stoppers 7, 7 have a generally rectangular parallelepiped shape and are integrally made of the same material as the elastic body 4. The pair of central recesses 63, 63 of the first stopper 6 Both are vulcanized and bonded. The second stoppers 7, 7 are bulged portions of the first stopper 6. It has a top surface 71 that protrudes further in the centrifugal direction than 64 and 64. In addition, the second stage The topper 7 has a height that is approximately half the vertical height of the liquid chamber 3, compared to the conventional one. It is about twice as tall as the original.
【００１５】 上記液体封入式ブッシュは次のようにして製造される。まず、内筒部材１の外 周面に第１ストッパ６を圧入により嵌合固定してなるものと、円筒状金具５とを 加硫成形型のキャビティの所定位置に同心的に配置し、キャビティ内にゴム材を 充填して加硫成形することにより、内筒部材１や円筒状金具５を弾性体４にて一 体的に加硫接着する。このとき、第１ストッパ６の各中央凹部６３、６３には弾 性体４と同一材料にて第２ストッパ７、７が同時に加硫接着される。[0015] The liquid-filled bushing described above is manufactured as follows. First, the outside of the inner cylinder member 1 The first stopper 6 is press-fitted and fixed on the circumferential surface, and the cylindrical metal fitting 5 is used. The rubber material is placed concentrically at a predetermined position in the cavity of the vulcanization mold, and the rubber material is placed inside the cavity. By filling and vulcanizing, the inner cylinder member 1 and the cylindrical metal fitting 5 are held together by the elastic body 4. Physically vulcanize and adhere. At this time, each central recess 63, 63 of the first stopper 6 is Second stoppers 7, 7 are simultaneously vulcanized and bonded using the same material as the elastic body 4.
【００１６】 一方、同様な加硫成形操作により、外筒部材２の内周面に所定厚さのゴム層２ ３が一体的に形成される。そして、非圧縮流体を収容した液槽内で、上記ブッシ ュアッセンブリを外筒部材２内に挿嵌後、外筒部材２の外周面に絞り加工を施す とともに、その両端を径方向内方にほぼ直角に折り曲げることによりフランジ２ ２、２２を形成して液体封入式ブッシュが完成する。[0016] On the other hand, a rubber layer 2 of a predetermined thickness is formed on the inner peripheral surface of the outer cylinder member 2 by a similar vulcanization molding operation. 3 are integrally formed. Then, the bushing is placed in a liquid tank containing an incompressible fluid. After inserting the secure assembly into the outer cylindrical member 2, a drawing process is performed on the outer peripheral surface of the outer cylindrical member 2. At the same time, the flange 2 is formed by bending both ends radially inward at almost right angles. 2 and 22 are formed to complete the liquid-filled bushing.
【００１７】 本実施例の液体封入式ブッシュは、自動車の懸架装置に装着されて使用される 。例えば、４リンク式サスペンション機構に用いた場合、外筒部材２がコントロ ールアームのアームアイ（ボス部）内に嵌合される一方、内筒部材１の内側に車 体やアクスルハウジング側に設けられた枢軸が嵌挿せしめられてブッシュが取り 付けられる。[0017] The liquid-filled bush of this example is used by being attached to an automobile suspension system. . For example, when used in a 4-link suspension mechanism, the outer cylinder member 2 It is fitted into the arm eye (boss part) of the roll arm, while the car is fitted inside the inner cylinder member 1. The pivot provided on the body or axle housing side is inserted and the bush is removed. Can be attached.
【００１８】 上記構成を有する液体封入式ブッシュは、弾性体４の弾性作用やオリフィス孔 ８、８を介して２つの液体室３、３間を流動する非圧縮性流体の流体作用により 、内筒部材１と外筒部材２との間に相互作用する軸直角方向振動に対して良好な 減衰作用を果たす。また、内筒部材１と外筒部材２との間に過大荷重が作用した 場合、第１ストッパ６の膨出両端部６４、６４や第２ストッパ７の頂面７１が外 筒部材２のゴム層２３に当接することにより、内筒部材１及び外筒部材２を連結 する弾性体４の過大変形を阻止して、同弾性体４の耐久性を確保している。[0018] The liquid-filled bushing having the above structure is characterized by the elastic action of the elastic body 4 and the orifice hole. Due to the fluid action of the incompressible fluid flowing between the two liquid chambers 3, 3 via 8, 8 , good resistance to vibrations in the direction perpendicular to the axis that interact between the inner cylinder member 1 and the outer cylinder member 2. Acts as a damper. In addition, an excessive load was applied between the inner cylinder member 1 and the outer cylinder member 2. In this case, the bulging ends 64, 64 of the first stopper 6 and the top surface 71 of the second stopper 7 are The inner cylinder member 1 and the outer cylinder member 2 are connected by contacting the rubber layer 23 of the cylinder member 2. This prevents excessive deformation of the elastic body 4 and ensures durability of the elastic body 4.
【００１９】 そして、本実施例の液体封入式ブッシュでは、内筒部材１及び外筒部材２に相 互作用する軸直角方向の荷重が小さいときは、弾性材料よりなる第２ストッパ７ の頂面７１が外筒部材２のゴム層２３に当接する。このとき、第２ストッパ７は 従来のものと比較して約２倍程度の高さをもつ弾性材料により構成されているの で、ばね定数が急激に変化して衝撃的な振動伝達が起こることがなく、柔らかい 良好なストッパ特性が得られる。[0019] In the liquid-filled bushing of this embodiment, the inner cylinder member 1 and the outer cylinder member 2 are compatible with each other. When the interacting load in the direction perpendicular to the axis is small, the second stopper 7 made of an elastic material The top surface 71 of is in contact with the rubber layer 23 of the outer cylinder member 2. At this time, the second stopper 7 It is made of an elastic material that is approximately twice as tall as the conventional one. Therefore, the spring constant does not change suddenly and shock vibration transmission occurs, and the spring constant is soft. Good stopper characteristics can be obtained.
【００２０】 また、内筒部材１及び外筒部材２に相互作用する軸直角方向の荷重が大きいと きは、第１ストッパ６の膨出部６４、６４が外筒部材２のゴム層２３に当接し、 この膨出部６４、６４で荷重を受けとめる。このため、ストッパゴムを構成する 第２ストッパ７が大荷重を受けることがないので、第２ストッパ７の耐久性を確 保することができる。[0020] Also, if the load in the direction perpendicular to the axis that interacts with the inner cylinder member 1 and the outer cylinder member 2 is large, When the bulges 64, 64 of the first stopper 6 come into contact with the rubber layer 23 of the outer cylinder member 2, The bulges 64, 64 receive the load. For this reason, the stopper rubber is Since the second stopper 7 is not subjected to large loads, the durability of the second stopper 7 can be ensured. can be maintained.
【００２１】 このように本実施例の液体封入式ブッシュは、ストッパゴムとしての第２スト ッパ７の耐久性が第１ストッパ６の膨出部６４、６４で確保されるので、第２ス トッパ７の高さを高くして、第２ストッパ７の当接時のストッパ特性を良好なも のとすることができ、弾性材料からなる第２ストッパ７の耐久性とストッパ特性 の両立を図ることができる。 （その他の実施例） 上記実施例の第１ストッパ６の形状を変更した他の実施例の液体封入式ブッシ ュを図３及び図４に示す。この実施例の第１ストッパ６’は、遠心方向に膨出し その間に中央凹部６３を形成する膨出部６４、６４が軸方向にのびて形成される とともに、その軸方向の両端部にも上記膨出部６４と遠心方向に同じだけ膨出す る膨出部６５、６５が形成されたもので、基本的には上記実施例と同様の作用、 効果を奏する。[0021] In this way, the liquid-filled bushing of this embodiment has a second stopper rubber. Since the durability of the stopper 7 is ensured by the bulges 64, 64 of the first stopper 6, the second stopper By increasing the height of the topper 7, the stopper characteristics when the second stopper 7 comes into contact can be improved. The durability and stopper characteristics of the second stopper 7 made of an elastic material It is possible to achieve both. (Other examples) A liquid-filled bushing of another embodiment in which the shape of the first stopper 6 of the above embodiment is changed. Figures 3 and 4 show the diagrams. The first stopper 6' of this embodiment bulges in the centrifugal direction. A bulge 64, 64 forming a central recess 63 is formed extending in the axial direction. At the same time, both ends in the axial direction also bulge out by the same amount in the centrifugal direction as the bulging portion 64. bulges 65, 65 are formed, and basically the same effect as the above embodiment, be effective.
【００２２】[0022]
以上詳述したように、本考案の液体封入式ブッシュは、内筒部材と外筒部材と の間に相互作用する軸直角方向の荷重を、弾性材料よりなる第２ストッパの頂面 と第１ストッパの膨出部とで二段階的に受けとめることができるので、弾性材料 からなる第２ストッパの耐久性を確保しつつ、ストッパ特性を良好なものとする ことができる。 As detailed above, the liquid-filled bushing of the present invention has an inner cylinder member and an outer cylinder member. The load in the direction perpendicular to the axis that interacts with the top surface of the second stopper made of an elastic material The elastic material can be received in two stages by the first stopper and the first stopper. To improve the stopper characteristics while ensuring the durability of the second stopper consisting of be able to.
【図１】本考案の実施例の液体封入式ブッシュの軸直角
方向の断面図である。FIG. 1 is a cross-sectional view of a liquid-filled bush according to an embodiment of the present invention in a direction perpendicular to its axis.
【図２】図１のＡ−Ａ線に沿う軸方向の断面図である。FIG. 2 is an axial cross-sectional view taken along line AA in FIG. 1;
【図３】本考案の他の実施例の液体封入式ブッシュの軸
直角方向の断面図である。FIG. 3 is a cross-sectional view in the direction perpendicular to the axis of a liquid-filled bushing according to another embodiment of the present invention.
【図４】図３のＡ−Ａ線に沿う軸方向の断面図である。FIG. 4 is an axial cross-sectional view taken along line A-A in FIG. 3;
【図５】従来の液体封入式ブッシュの軸直角方向の断面
図である。FIG. 5 is a cross-sectional view of a conventional liquid-filled bushing in the direction perpendicular to the axis.
【図６】図５のＢ−Ｂ線に沿う軸方向の断面図である。FIG. 6 is an axial cross-sectional view taken along line BB in FIG. 5;
１は内筒部材、２は外筒部材、３は液体室、４は弾性
体、５は円筒状金具、６、６’は第１ストッパ、７は第
２ストッパ、８はオリフィス孔、６３は中央凹部、６４
は膨出部、７１は頂面である。1 is an inner cylinder member, 2 is an outer cylinder member, 3 is a liquid chamber, 4 is an elastic body, 5 is a cylindrical metal fitting, 6 and 6' are a first stopper, 7 is a second stopper, 8 is an orifice hole, and 63 is a central recess, 64
is a bulge, and 71 is a top surface.
Claims (1)
隔を隔てて配置された外筒部材と、該内筒部材と該外筒
部材との間に介在されて両者を一体的に連結し、非圧縮
性流体が封入された液体室をもつ弾性体と、該内筒部材
に設けられ、該液体室に面する外周面に遠心方向に膨出
してその間に中央凹部を形成する膨出部をもつ第１スト
ッパと、該第１ストッパの該中央凹部に固定され、該第
１ストッパの膨出部よりさらに遠心方向に突出した頂面
をもつ弾性材料製の第２ストッパとからなることを特徴
とする液体封入式ブッシュ。1. An inner cylindrical member, an outer cylindrical member disposed outside the inner cylindrical member at a predetermined interval, and an outer cylindrical member interposed between the inner cylindrical member and the outer cylindrical member to integrally connect them. an elastic body connected to the inner cylinder member and having a liquid chamber filled with an incompressible fluid; and an elastic body provided in the inner cylinder member and bulging in the centrifugal direction on the outer peripheral surface facing the liquid chamber to form a central recess therebetween. a first stopper having a bulging portion; and a second stopper made of an elastic material and having a top surface that is fixed to the central recess of the first stopper and further protrudes in the centrifugal direction from the bulging portion of the first stopper. A liquid-filled bushing characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1064691U JPH04107539U (en) | 1991-03-01 | 1991-03-01 | Liquid-filled bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1064691U JPH04107539U (en) | 1991-03-01 | 1991-03-01 | Liquid-filled bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04107539U true JPH04107539U (en) | 1992-09-17 |
Family
ID=31900386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1064691U Pending JPH04107539U (en) | 1991-03-01 | 1991-03-01 | Liquid-filled bushing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04107539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010255785A (en) * | 2009-04-27 | 2010-11-11 | Bridgestone Corp | Vibration isolator |
| JP2019086102A (en) * | 2017-11-08 | 2019-06-06 | 株式会社ブリヂストン | Vibration controller |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03277845A (en) * | 1990-03-27 | 1991-12-09 | Kinugawa Rubber Ind Co Ltd | Fluid sealed bush |
-
1991
- 1991-03-01 JP JP1064691U patent/JPH04107539U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03277845A (en) * | 1990-03-27 | 1991-12-09 | Kinugawa Rubber Ind Co Ltd | Fluid sealed bush |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010255785A (en) * | 2009-04-27 | 2010-11-11 | Bridgestone Corp | Vibration isolator |
| JP2019086102A (en) * | 2017-11-08 | 2019-06-06 | 株式会社ブリヂストン | Vibration controller |
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