JPH0325450Y2 - - Google Patents
Info
- Publication number
- JPH0325450Y2 JPH0325450Y2 JP1986047818U JP4781886U JPH0325450Y2 JP H0325450 Y2 JPH0325450 Y2 JP H0325450Y2 JP 1986047818 U JP1986047818 U JP 1986047818U JP 4781886 U JP4781886 U JP 4781886U JP H0325450 Y2 JPH0325450 Y2 JP H0325450Y2
- Authority
- JP
- Japan
- Prior art keywords
- metal fitting
- diameter portion
- large diameter
- circumferential surface
- rubber
- 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims description 66
- 239000002184 metal Substances 0.000 claims description 66
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 6
- 241001247986 Calotropis procera Species 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Springs (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、例えば、自動車の懸架装置に供せら
れるゴムブツシユに係る。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a rubber bushing used, for example, in a suspension system of an automobile.
従来のゴムブツシユについて自動車の懸架装置
を例にとつて説明する。
A conventional rubber bushing will be explained using an automobile suspension system as an example.
自動車の懸架装置は、第４図に示す如きであつ
て、この図に於いて矢印Ｆ−Ｒ方向は自動車の前
後方向、矢印Ｕ−Ｄ方向は上下方向、更にＲ−Ｌ
方向は横方向を示す。ここで、１００はストラツ
ト本体であり、その上端は車体フレーム２００に
回転自在に枢支されており、下端には車輪に結合
したドライブシヤフト（図示せず）を支承するア
クスルハウジング３００が設けられている。４０
０は車体２００の横方向に配置されているＡ型コ
ントロールアームであつて、一端ａを前記アクス
ルハウジング３００の下端に結合すると共に他端
ｂ及びｃを車体２００に結合することによつて、
車体を懸架せしめている。 The suspension system of an automobile is as shown in Fig. 4, in which the arrow FR direction is the front and back direction of the automobile, the arrow UD direction is the up and down direction, and the R-L direction is the upward and downward direction of the automobile.
The direction indicates the horizontal direction. Here, 100 is a strut body, the upper end of which is rotatably supported by the vehicle body frame 200, and the lower end thereof is provided with an axle housing 300 that supports a drive shaft (not shown) connected to a wheel. There is. 40
0 is an A-type control arm disposed in the lateral direction of the vehicle body 200, one end a is connected to the lower end of the axle housing 300, and the other ends b and c are connected to the vehicle body 200.
The vehicle body is suspended.
しかして、Ａ型コントロールアーム４００と車
体フレーム２００との結合部、即ちＡ型コントロ
ールアーム４００の他端部ｂ，ｃには、懸架装置
を弾性的に機能せしめる為、従来よりＡ型コント
ロールアーム４００の結合部ｂ，ｃに前後方向
（矢印Ｆ−Ｒ方向）にのびる貫通孔６００および
７００を設け、該貫通孔６００，７００にゴムブ
ツシユを挿入することにより、ゴムブツシユの軸
線が車体前後方向にそうように、ゴムブツシユを
取り付けている。 Therefore, in order to make the suspension device function elastically, the A-type control arm 400 has been conventionally attached to the connecting portion between the A-type control arm 400 and the vehicle body frame 200, that is, the other ends b and c of the A-type control arm 400. By providing through-holes 600 and 700 extending in the front-rear direction (direction of arrow F-R) in the joint parts b and c, and inserting rubber bushings into the through-holes 600 and 700, the axes of the rubber bushings are aligned in the longitudinal direction of the vehicle body. A rubber button is attached to it.
ここで従来より提供されているゴムブツシユ
は、外周径が同一の筒状の中央金具８００と、該
中央金具８００と同軸的に中央金具８００を覆う
内周面をもちかつ内周径が同一の外側金具８０３
と、中央金具８００の外周面と外側金具８０３の
内周面との間の空間を実質的に埋めるゴムスリー
ブ８０２とで構成されている。 The rubber bushes conventionally provided here have a cylindrical central metal fitting 800 with the same outer circumferential diameter and an inner peripheral surface that covers the central metal fitting 800 coaxially with the central metal fitting 800 and an outer side with the same inner circumferential diameter. Metal fittings 803
and a rubber sleeve 802 that substantially fills the space between the outer circumferential surface of the central fitting 800 and the inner circumferential surface of the outer fitting 803.
また従来より提供されているほかのゴムブツシ
ユは、外周径が同一の筒状の中央金具８０５と、
中央金具８０５と同軸的に中央金具８０５を覆い
かつ内周径が同一の外側金具８０７と、中央金具
８０５の外周面と外側金具８０７の内周面との間
の空間を実質的に埋めかつ対向する孔部８０６ａ
をもつゴムスリーブ８０６とで構成されている。 In addition, other conventionally provided rubber bushings have a cylindrical central metal fitting 805 with the same outer diameter,
An outer metal fitting 807 coaxially covers the central metal fitting 805 and has the same inner diameter, and substantially fills the space between the outer peripheral surface of the central metal fitting 805 and the inner peripheral surface of the outer metal fitting 807 and faces the central metal fitting 805. hole 806a
A rubber sleeve 806 with a
第５図にしめずゴムブツシユでは、径方向での
バネ特性をみると、全周にわたつてつまり360度
にわたつて同一である。また、第６図にしめすゴ
ムブツシユでは、矢印Ａ方向から作用したときの
バネ特性と、矢印Ｂ方向から作用したときのバネ
特性とは同一であつた。また、矢印A′方向から
作用したときのバネ特性と、矢印B′方向から作
用したときのバネ特性とは同一であつた。このよ
うに従来では、たがいに対向する向きのバネ特性
は同一であつた。 In the case of the rubber bush shown in Fig. 5, the spring characteristics in the radial direction are the same all around the circumference, that is, over 360 degrees. Further, in the rubber bush shown in FIG. 6, the spring characteristics when acting from the direction of arrow A and the spring characteristics when acting from the direction of arrow B were the same. Further, the spring characteristics when acting from the direction of arrow A' and the spring characteristics when acting from the direction of arrow B' were the same. As described above, in the past, the spring characteristics in opposing directions were the same.
そのため、上記２種のゴムブツシユでは、ハー
シユネス（道路の継目や段差、亀裂、穴、突起な
どを通過したときに生じる衝撃的な振動）と、操
縦安定性との妥協点をみいだすことが困難であつ
た。故に、産業界ではハーシユネスと操縦安定性
との妥協点を容易にみいだしうるゴムブツシユの
開発が進められている。 Therefore, with the above two types of rubber bushes, it is difficult to find a compromise between harshness (impact vibrations that occur when passing through road joints, steps, cracks, holes, protrusions, etc.) and steering stability. Ta. Therefore, the industry is progressing with the development of rubber bushings that can easily find a compromise between stiffness and handling stability.
本考案は上記した実情に鑑みなされたものであ
り、その目的は、ハーシユネスと操縦安定性との
妥協点を容易にみいだし得、ハーシユネスと操縦
安定性との双方を良好ならしめるゴムブツシユを
提供するにある。
The present invention was developed in view of the above-mentioned circumstances, and its purpose is to provide a rubber bushing that can easily find a compromise between stiffness and handling stability, and that achieves both good stiffness and handling stability. It is in.
本考案のゴムブツシユは、筒状の中央金具と、
該中央金具と同軸的に該中央金具を覆う内周面を
もつ外側金具と、該中央金具の該外周面と該外側
金具の該内周面との間の空間を実質的に埋めるゴ
ムスリーブとで構成され、該中央金具は、その一
方の側壁部が外側に突出した半筒状の大径部で、
他方の側壁部は該大径部よりも外径が小さな半筒
状の小径部で構成されており、中央金具の大径部
の外周面はゴムスリーブの内周面に非接着状態で
あり、小径部の外周面はゴムスリーブの内周面に
接着されており、｛（該小径部から該大径部に向う
力が作用したときのバネ定数）／（該大径部から
該小径部に向う力が作用したときのバネ定数）｝
の値を大きくしたことを特徴とするものである。
The rubber button of this invention has a cylindrical central metal fitting,
an outer metal fitting having an inner peripheral surface coaxially with the central metal fitting and covering the central metal fitting; and a rubber sleeve that substantially fills a space between the outer peripheral surface of the central metal fitting and the inner peripheral surface of the outer metal fitting. The central metal fitting is a semi-cylindrical large diameter portion with one side wall protruding outward;
The other side wall portion is composed of a semi-cylindrical small diameter portion having an outer diameter smaller than the large diameter portion, and the outer circumferential surface of the large diameter portion of the central metal fitting is not bonded to the inner circumferential surface of the rubber sleeve. The outer circumferential surface of the small diameter section is bonded to the inner circumferential surface of the rubber sleeve, and {(spring constant when a force is applied from the small diameter section toward the large diameter section)/(from the large diameter section to the small diameter section) Spring constant when a force is applied in the opposite direction)}
The feature is that the value of is increased.
以下構成要素に分けて説明する。 The components will be explained below.
中央金具は筒状である。中央金具を横断面図で
みたとき、その一方の側壁部は外側に突出した半
筒状の大径部で構成され、他方の側壁部は該大径
部よりも外径が小さな半筒状の小径部で構成され
ている。中央金具の大径部の外周面は、ゴムスリ
ーブの内周面に非接着状態とされており、小径部
の外周面はゴムスリーブの内周面に接着されてい
る。接着は加硫接着でおこなうことができる。 The central metal fitting is cylindrical. When the central metal fitting is viewed in a cross-sectional view, one side wall is composed of a semi-cylindrical large diameter part that protrudes outward, and the other side wall is composed of a semi-cylindrical large diameter part that is smaller in outer diameter than the large diameter part. Consists of a small diameter section. The outer circumferential surface of the large diameter portion of the central metal fitting is not bonded to the inner circumferential surface of the rubber sleeve, and the outer circumferential surface of the small diameter portion is bonded to the inner circumferential surface of the rubber sleeve. Bonding can be done by vulcanization bonding.
外側金具は、中央金具の大径部よりも大径の筒
状をなし、中央金具と同軸的に該中央金具を覆う
外周面をもつと共に、該内周面で形成される中央
孔をもつ。 The outer metal fitting has a cylindrical shape with a larger diameter than the large diameter portion of the central metal fitting, has an outer peripheral surface coaxially covering the central metal fitting, and has a central hole formed by the inner peripheral surface.
ゴムスリーブは、中央金具の外周面と外側金具
の内周面との間の空間を実質的に埋めるゴム製の
スリーブである。ここで「実質的」とは、一般
に、中央金具の外周面と外側金具の内周面との間
の空間にはゴムスリーブが隙間を形成することな
く、充填されているが、場合によつては、中央金
具の外周面の中央部と外側金具の内周面の中央部
との間にゴムスリーブが充填されているかぎり、
中央金具の外周面の端部と外側金具の内周面の端
部との間には隙間が若干存在していてもよいとい
う意味である。 The rubber sleeve is a rubber sleeve that substantially fills the space between the outer circumferential surface of the central fitting and the inner circumferential surface of the outer fitting. Here, "substantially" means that the space between the outer circumferential surface of the central fitting and the inner circumferential surface of the outer fitting is generally filled with a rubber sleeve without forming a gap, but in some cases As long as the rubber sleeve is filled between the center of the outer circumferential surface of the central fitting and the center of the inner circumferential surface of the outer fitting,
This means that there may be a slight gap between the end of the outer circumferential surface of the central fitting and the end of the inner circumferential surface of the outer fitting.
次にゴムスリーブを外側金具と中央金具との間
の空間に介在した状態について説明する。この状
態では、外側金具の中央孔にゴムスリーブが介在
されているため、中央金具が径方向へ相対変位す
ると、ゴムスリーブはこれの径方向に圧縮変形さ
れる。このようにゴムスリーブを介在した状態で
は、中央金具は大径部と小径部とで構成されてい
るため、大径部から該小径部に向う力が作用した
ときの該ゴムブツシユのバネ特性と、該小径部か
ら該大径部に向う力が作用したときの該ゴムブツ
シユのバネ特性とが異なる。 Next, a state in which the rubber sleeve is interposed in the space between the outer metal fitting and the central metal fitting will be explained. In this state, since the rubber sleeve is interposed in the central hole of the outer metal fitting, when the central metal fitting is relatively displaced in the radial direction, the rubber sleeve is compressed and deformed in the radial direction. With the rubber sleeve interposed in this way, since the central metal fitting is composed of a large diameter part and a small diameter part, the spring characteristics of the rubber bushing when a force is applied from the large diameter part to the small diameter part, The spring characteristics of the rubber bushing are different when a force is applied from the small diameter portion to the large diameter portion.
ところで、一般的にゴムの圧縮方向のバネ定数
はゴムの厚みにより大きく変動する。本考案のゴ
ムブツシユでは、ゴムブツシユの横断面でみたと
き、小径部と外側金具との間のゴムスリーブ部分
は厚肉であり、圧縮方向のバネ定数は軟目であ
り、大径部と外側金具との間のゴムスリーブ部分
は薄肉で硬目である。しかも、中央金具の小径部
はゴムスリーブに接着であり、中央金具の大径部
はゴムスリーブに非接着とされているので、小径
部と外側金具との間のゴムスリーブ部分が圧縮さ
れるときには、大径部と外側金具との間のゴムス
リーブ部分はバネ定数増加に基本的に寄与しな
い。一方、大径部と外側金具との間のゴムスリー
ブ部分が圧縮されるときには、小径部と外側金具
との間のゴムスリーブ部分はバネ定数増加に寄与
する。よつて、大径部から該小径部に向う力が作
用したときの該ゴムブツシユのバネ特性と、該小
径部から該大径部に向う力が作用したときの該ゴ
ムブツシユのバネ特性とが異なるため、対向する
方向でバネ特性が大きくことなる。そのため操縦
安定性にきく方向ではバネ特性を硬くし、一方、
ハーシユネスにきく方向ではバネ特性を軟らかく
設定すれば、ハーシユネスと操縦安定性との妥協
点をみいだしやすく、したがつて双方を良好なら
しめうる。したがつて、自動車のＡ型コントロー
ルアームの車体結合部に、ブツシユの軸線が車体
前後方向にそうように該ゴムブツシユを取り付け
れば、ハーシユネスと操縦安定性の双方を良好な
らしめ得る。
Incidentally, the spring constant of rubber in the compression direction generally varies greatly depending on the thickness of the rubber. In the rubber bushing of the present invention, when viewed in cross section of the rubber bushing, the rubber sleeve part between the small diameter part and the outer metal fitting is thick, the spring constant in the compression direction is soft, and the large diameter part and the outer metal fitting are thick. The rubber sleeve in between is thin and hard. Moreover, the small diameter part of the central fitting is bonded to the rubber sleeve, and the large diameter part of the central fitting is not bonded to the rubber sleeve, so when the rubber sleeve part between the small diameter part and the outer fitting is compressed, , the rubber sleeve portion between the large diameter portion and the outer metal fitting basically does not contribute to increasing the spring constant. On the other hand, when the rubber sleeve portion between the large diameter portion and the outer metal fitting is compressed, the rubber sleeve portion between the small diameter portion and the outer metal fitting contributes to an increase in the spring constant. Therefore, the spring characteristics of the rubber bushing when a force is applied from the large diameter portion toward the small diameter portion are different from the spring characteristics of the rubber bushing when a force is applied from the small diameter portion toward the large diameter portion. , the spring characteristics differ greatly in opposing directions. Therefore, the spring characteristics are made stiffer in the direction that improves steering stability, and on the other hand,
If the spring characteristics are set to be soft in the direction that affects harshness, it is easier to find a compromise between harshness and handling stability, and therefore, it is possible to achieve good results for both. Therefore, if the rubber bushing is attached to the vehicle body connection part of the A-type control arm of the automobile so that the axis of the bushing is in the longitudinal direction of the vehicle body, both stiffness and steering stability can be improved.
第１図および第２図は本考案の一実施例を示
す。
1 and 2 show an embodiment of the present invention.
本実施例のゴムブツシユは、中央金具１と外側
金具２とゴムスリーブ３とを主構成要素としてい
る。 The rubber bush of this embodiment has a central metal fitting 1, an outer metal fitting 2, and a rubber sleeve 3 as main components.
中央金具１は、第１図に示すように円筒状をな
している。中央金具１はアルミダイキヤストから
作製されている。中央金具１は、横断面図でみる
と、半筒状の大径部１０と、大径部１０と一体の
半筒状の小径部１１とで構成されている。すなわ
ち、中央金具１は横断面図でみると、大径部１０
と小径部１１とに２分割されている。 The central metal fitting 1 has a cylindrical shape as shown in FIG. The central metal fitting 1 is made of aluminum die-casting. When viewed in a cross-sectional view, the central fitting 1 is composed of a semi-cylindrical large diameter portion 10 and a semi-cylindrical small diameter portion 11 that is integral with the large diameter portion 10. That is, when the central fitting 1 is viewed in a cross-sectional view, the large diameter portion 10
It is divided into two parts: and a small diameter part 11.
第１図にしめすように大径部１０と小径部１１
とは内周面の半径が６mmと等しく設定されてお
り、大径部１０の外周面の半径は13mmであり、小
径部１１の外周面の半径は10mmである。ここで、
大径部１０および小径部１１はともに中央金具１
の軸方向の長さのほぼ全長にわたつて形成されて
いる。 As shown in FIG. 1, a large diameter portion 10 and a small diameter portion 11
The radius of the inner circumferential surface is set equal to 6 mm, the radius of the outer circumferential surface of the large diameter portion 10 is 13 mm, and the radius of the outer circumferential surface of the small diameter portion 11 is 10 mm. here,
Both the large diameter portion 10 and the small diameter portion 11 are connected to the central metal fitting 1.
It is formed over almost the entire axial length of.
外側金具２は、第１図に示すように円筒状をな
し、中央金具１と同軸的に中央金具１を覆う内周
面２０を有する。更に外側金具２はこれの内周面
２０で形成される中央孔２１を有する。なお、外
側金具２は内径35mmの鋼管から作製されている。 The outer metal fitting 2 has a cylindrical shape as shown in FIG. 1, and has an inner circumferential surface 20 that covers the central metal fitting 1 coaxially with the central metal fitting 1. Furthermore, the outer fitting 2 has a central hole 21 formed by its inner peripheral surface 20. Note that the outer metal fitting 2 is made from a steel pipe with an inner diameter of 35 mm.
ゴムスリーブ３は中央金具１の外周面と外側金
具２の内周面との間の空間に未加硫ゴムを注入し
て加硫することにより形成された筒状のゴム部材
である。このようにゴムスリーブ３が中央金具１
と外側金具２との間に介在した状態では、ゴムス
リーブ３の外周面と外側金具２の内周面とはほぼ
型対象の形状となつている。 The rubber sleeve 3 is a cylindrical rubber member formed by injecting unvulcanized rubber into the space between the outer circumferential surface of the central fitting 1 and the inner circumferential surface of the outer fitting 2 and vulcanizing it. In this way, the rubber sleeve 3 is attached to the central metal fitting 1.
In the state interposed between the rubber sleeve 3 and the outer metal fitting 2, the outer circumferential surface of the rubber sleeve 3 and the inner circumferential surface of the outer metal fitting 2 have substantially symmetrical shapes.
ところで、本実施例では中央金具１の大径部１
０の外周面１０ａはゴムスリーブ３の内周面に非
接着状態であり、小径部１１の外周面１１ａはゴ
ムスリーブ３の内周面に加硫接着されている。 By the way, in this embodiment, the large diameter portion 1 of the central fitting 1
The outer circumferential surface 10a of the rubber sleeve 3 is not bonded to the inner circumferential surface of the rubber sleeve 3, and the outer circumferential surface 11a of the small diameter portion 11 is vulcanized and bonded to the inner circumferential surface of the rubber sleeve 3.
本実施例では、第１図にしめすように大径部１
０から該小径部１１に向うように矢印Ｃ方向の力
が作用したときには、小径部１１によつて、小径
部１１と外側金具２との間のゴムスリーブ３の部
分３０が押圧される。このとき本実施例では部分
３０は部分３１よりも厚肉のため、圧縮方向のバ
ネ定数は軟目であり、しかも大径部１０とゴムス
リーブ３とが非接着であるため、大径部１０と外
側金具２との間のゴムスリーブ３の部分３１は、
中央金具１が矢印Ｃ方向へ移動したときであつて
もひきよせられないため、バネ定数増加には寄与
しない。従つて、矢印Ｃ方向へ中央金具１が相対
変位するときのバネ定数Kcは軟目である。 In this embodiment, as shown in FIG.
When a force in the direction of arrow C acts from zero toward the small diameter portion 11, the portion 30 of the rubber sleeve 3 between the small diameter portion 11 and the outer metal fitting 2 is pressed by the small diameter portion 11. At this time, in this embodiment, since the portion 30 is thicker than the portion 31, the spring constant in the compression direction is softer, and since the large diameter portion 10 and the rubber sleeve 3 are not bonded, the large diameter portion 10 The portion 31 of the rubber sleeve 3 between the
Even when the central metal fitting 1 moves in the direction of arrow C, it is not pulled together, so it does not contribute to an increase in the spring constant. Therefore, the spring constant Kc when the central fitting 1 is relatively displaced in the direction of arrow C is soft.
これに対して、小径部１１から大径部１０に部
１０にむかうように矢印Ｄ方向の力が作用したと
きには、部分３１は部分３０よりも薄肉のため、
圧縮方向のバネ定数は硬目であり、大径部１０と
外側金具２との間のゴムスリーブ３の部分３１が
大径部１０によつて押圧される。このとき本実施
例では小径部１１とゴムスリーブ３とが接着状態
であるため、中央金具１の移動につれて、小径部
１１と外側金具２との間のゴムスリーブ３の部分
３０はひきよせられ、よつてバネ定数増加に寄与
する。従つて、矢印Ｄ方向へ中央金具１が相対変
位するときのバネ定数Kdは、部分３１の圧縮方
向のバネ定数の他に、部分３０が抵抗として作用
するので、中央金具１が矢印Ｃ方向に相対変位す
る場合のバネ定数Kcに比較して硬目である。よ
つて｛Kd／Kc｝の値きは大きくなる。このよう
に本実施例では、ゴムスリーブ３の肉厚が異なる
こととあいまつて、小径部１１とゴムスリーブ３
とが接着状態であり、大径部１０をゴムスリーブ
３とが非接着状態であるため、大径部１０から小
径部１１に向かう力が作用したときのゴムブツシ
ユのバネ特性と、小径部１１から大径部１０に向
か力が作用したときのゴムブツシユのバネ特性と
は異なる。 On the other hand, when a force is applied in the direction of arrow D from the small diameter section 11 to the large diameter section 10, since the section 31 is thinner than the section 30,
The spring constant in the compression direction is hard, and the portion 31 of the rubber sleeve 3 between the large diameter portion 10 and the outer metal fitting 2 is pressed by the large diameter portion 10. At this time, in this embodiment, the small diameter portion 11 and the rubber sleeve 3 are in an adhesive state, so as the central metal fitting 1 moves, the portion 30 of the rubber sleeve 3 between the small diameter portion 11 and the outer metal fitting 2 is pulled together. This contributes to an increase in the spring constant. Therefore, the spring constant Kd when the center metal fitting 1 is relatively displaced in the direction of the arrow D is the spring constant of the portion 31 in the compression direction, and since the portion 30 acts as a resistance, the center metal fitting 1 moves in the direction of the arrow C. It is stiffer than the spring constant Kc in the case of relative displacement. Therefore, the value of {Kd/Kc} increases. As described above, in this embodiment, the small diameter portion 11 and the rubber sleeve 3 have different wall thicknesses.
are in a bonded state, and the large diameter portion 10 and the rubber sleeve 3 are in a non-bonded state. This is different from the spring characteristics of the rubber bushing when a directed force is applied to the large diameter portion 10.
かかる特性をもつゴムブツシユを、従来と同様
に第４図に示すＡ型コントロールアーム４００の
貫通孔６００及び７００に挿通して、該ゴムプツ
シユの軸線が車体前後方向にそうように、該ゴム
ブツシユを取り付ければ、ハーシユネスと自動車
の操縦安定性との双方が向上する。 If a rubber bushing having such characteristics is inserted into the through holes 600 and 700 of the A-type control arm 400 shown in FIG. 4 in the same manner as before, and the rubber bushing is attached so that the axis of the rubber bushing is in the longitudinal direction of the vehicle body. , both the harshness and the steering stability of the vehicle are improved.
本考案の第２実施例を第３図にしめす。この実
施例のゴムブツシユは基本的には、上記した実施
例と同一である。ただし、外側金具２と小径部１
１との間のゴムスリーブ３は孔部３４をもつ。こ
の実施例では、孔部３４をもつため、大径部１０
から小径部１１に向う力が作用したときのゴムブ
ツシユのバネ特性と、小径部１１から大径部１０
に向う力が作用したときのゴムブツシユのバネ特
性とをより一層異ならせうる。 A second embodiment of the present invention is shown in FIG. The rubber bushing of this embodiment is basically the same as the embodiment described above. However, the outer metal fitting 2 and the small diameter part 1
1 and the rubber sleeve 3 has a hole 34. In this embodiment, since the hole portion 34 is provided, the large diameter portion 10
The spring characteristics of the rubber bushing when a force is applied from the small diameter part 11 to the large diameter part 10
It is possible to further differentiate the spring characteristics of the rubber bushing when a force toward the rubber bush is applied.
第１図およ第２図は本考案の一実施例を示す。
第１図はゴムブツシユの横断面図であり、第２図
はゴムブツシユの縦断面図である。第３図は本考
案の第２実施例をしめし、ゴムブツシユの横断面
図である。第４図はゴムブツシユが使用される自
動車懸架装置の斜視図、第５図は従来のゴムブツ
シユの横断面図、第６図はほかの従来のゴムブツ
シユの横断面図である。
図中、１は中央金具、１０は大径部、１１は小
径部、２は外側金具、２０は内周面、２１は中央
孔、３はゴムスリーブ、３４は孔部を示す。
1 and 2 show an embodiment of the present invention.
FIG. 1 is a cross-sectional view of the rubber bushing, and FIG. 2 is a vertical cross-sectional view of the rubber bushing. FIG. 3 shows a second embodiment of the present invention, and is a cross-sectional view of a rubber bushing. FIG. 4 is a perspective view of an automobile suspension system in which a rubber bushing is used, FIG. 5 is a cross-sectional view of a conventional rubber bushing, and FIG. 6 is a cross-sectional view of another conventional rubber bushing. In the figure, 1 is a central metal fitting, 10 is a large diameter portion, 11 is a small diameter portion, 2 is an outer metal fitting, 20 is an inner peripheral surface, 21 is a central hole, 3 is a rubber sleeve, and 34 is a hole.
Claims (1)
面をもつ外側金具と、 該中央金具の該外周面と該外側金具の該内周
面との間の空間を実質的に埋めるゴムスリーブ
とで構成され、 該中央金具は、その一方の側壁部が外側に突
出した半筒状の大径部で、他方の側壁部は該大
径部よりも外径が小さな半筒状の小径部で構成
されており、 該中央金具の該大径部の外周面は該ゴムスリ
ーブの該内周面に非接着状態であり、該小径部
の外周面は該ゴムスリーブの該内周面に接着さ
れており、 ｛（該小径部から該大径部に向う力が作用し
たときのバネ定数）／（該大径部から該小径部
に向う力が作用したときのバネ定数）｝の値を
大きくしたことを特徴とするゴムブツシユ。 (2) 車体横方向に配置されるＡ型コントロールア
ームの車体結合部に設けられ、軸線が車体前後
方向に向つて取り付けられる自動車の懸架装置
に供する実用新案登録請求の範囲第１項記載の
ゴムブツシユ。[Scope of Claim for Utility Model Registration] (1) A cylindrical central metal fitting, an outer metal fitting having an inner peripheral surface coaxially with the central metal fitting and covering the central metal fitting, the outer peripheral surface of the central metal fitting and the outer metal fitting. and a rubber sleeve that substantially fills the space between the center metal fitting and the inner circumferential surface of the center metal fitting, and the center metal fitting is a semi-cylindrical large diameter part with one side wall projecting outward, and the other side wall is composed of a semi-cylindrical small diameter portion having an outer diameter smaller than the large diameter portion, and the outer circumferential surface of the large diameter portion of the central metal fitting is not bonded to the inner circumferential surface of the rubber sleeve; The outer circumferential surface of the small diameter portion is bonded to the inner circumferential surface of the rubber sleeve, and {(spring constant when a force is applied from the small diameter portion toward the large diameter portion)/(spring constant from the large diameter portion to the large diameter portion) A rubber bushing characterized by having a large spring constant (when a force is applied toward the small diameter portion). (2) A rubber bushing according to claim 1 of the utility model registration claim, which is provided in a vehicle body connection part of an A-type control arm arranged in the lateral direction of the vehicle body, and is used in an automobile suspension system with its axis facing in the longitudinal direction of the vehicle body. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986047818U JPH0325450Y2 (en) | 1986-03-31 | 1986-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986047818U JPH0325450Y2 (en) | 1986-03-31 | 1986-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62163340U JPS62163340U (en) | 1987-10-17 |
| JPH0325450Y2 true JPH0325450Y2 (en) | 1991-06-03 |
Family
ID=30868783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986047818U Expired JPH0325450Y2 (en) | 1986-03-31 | 1986-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0325450Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58146139U (en) * | 1982-03-27 | 1983-10-01 | 倉敷化工株式会社 | Button type vibration isolator |
-
1986
- 1986-03-31 JP JP1986047818U patent/JPH0325450Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62163340U (en) | 1987-10-17 |
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