JPS62101506A - Front suspension for automobile - Google Patents
Front suspension for automobileInfo
- Publication number
- JPS62101506A JPS62101506A JP24050685A JP24050685A JPS62101506A JP S62101506 A JPS62101506 A JP S62101506A JP 24050685 A JP24050685 A JP 24050685A JP 24050685 A JP24050685 A JP 24050685A JP S62101506 A JPS62101506 A JP S62101506A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- vehicle body
- rubber member
- compressed
- spring constant
- 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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
- F16F1/3873—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions having holes or openings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自動車のフロントサスペンションに関し、特
にＡ形サスペンションアームを備えた構成に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a front suspension for an automobile, and particularly to a structure provided with an A-shaped suspension arm.
（従来技術）
−Ｇに、自動車のフロントサスペンションは、路面の凹
凸による衝撃が前輪を介して車体に伝達されるのを吸収
して乗り心地を良好にするものであり、このようなフロ
ントサスペンションとして、実開昭６０−４７６１１号
公報に開示されているようなＡ形サスペンションアーム
を備えたものがある。このＡ形サスペンションアームは
、車体の進行方向に沿って前方側と後方側の２ケ所に枢
着部を存し、これら枢着部は、内筒と外筒との間にラバ
ー部材を嵌装したラバーブツシュを介して車体部材に枢
着され、車体前方側枢着部は、前輪車軸方向の延長線上
またはその近傍に配置されている。(Prior art) -G. The front suspension of a car absorbs the impact caused by uneven road surfaces that is transmitted to the car body through the front wheels to improve ride comfort. There is one equipped with an A-type suspension arm as disclosed in Japanese Utility Model Application Publication No. 60-47611. This A-type suspension arm has two pivot points, one on the front side and the other on the rear side, along the direction of movement of the vehicle body, and these pivot points have rubber members fitted between the inner cylinder and the outer cylinder. The front pivot portion of the vehicle body is pivotally connected to the vehicle body member via a rubber bush, and the front pivot portion of the vehicle body is disposed on or near an extension line of the front wheel axle direction.
第６図は、車体前方側枢着部１ａと車体後方側率■着部
ｌｂと、外側の前輪支持部１ｃとを備えた自動車の右側
部分におけるＡ形サスペンションアームｌの路線的平面
図で、車体前方側枢着部１ａおよび車体後方側枢着部１
ｂにラバーブツシュ７および８がそれぞれ取付けられた
状態を示したものである。FIG. 6 is a schematic plan view of an A-type suspension arm l in the right side of an automobile, which is equipped with a pivot joint part 1a on the front side of the vehicle body, a joint part lb on the rear side of the vehicle body, and an outer front wheel support part 1c. Vehicle front side pivot joint 1a and vehicle body rear side pivot joint 1
The rubber bushes 7 and 8 are shown attached to FIG.
ところで、第６図から明らかなように、自動車の走行中
のハンドル操作により車体を左方に向けた場合、旋回外
輪側のＡ形サスペンションアーム１の前輪支持部１ｃに
は矢Ａで示すような図の左方に向う力が加えられる。し
たがって前方のラバーブツシュ７のラバー部材には矢ａ
で示す方向、すなわち車幅方向に車体側に圧縮する力が
作用するが、この場合のラバー部材は、操安性の面から
硬い方が望ましい。すなわち、ラバー部材のばね定数が
大きい方が望ましい。一方、走行中にブレーキが作動さ
れた場合、前輪支持部１ｃには矢Ｂで示すような後方に
向う力が加えられる。したがってラバーブツシュ７のラ
バー部材には、矢すで示す矢ａとは反対側の方向の圧縮
力が作用するが、この場合のラバー部材は、乗り心地の
面から軟い方が望ましい。すなわちラバー部材のばね定
数が小さい方が望ましい。By the way, as is clear from FIG. 6, when the vehicle body is turned to the left by operating the steering wheel while the vehicle is running, the front wheel support portion 1c of the A-type suspension arm 1 on the outer wheel side of the turn is attached as shown by arrow A. A force is applied to the left in the diagram. Therefore, the rubber member of the front rubber bush 7 has an arrow a.
A compressive force acts on the vehicle body side in the direction shown by , that is, in the vehicle width direction, but it is desirable that the rubber member in this case be hard from the viewpoint of maneuverability. That is, it is desirable that the rubber member has a large spring constant. On the other hand, when the brake is activated while the vehicle is running, a rearward force as shown by arrow B is applied to the front wheel support portion 1c. Therefore, a compressive force acts on the rubber member of the rubber bush 7 in the direction opposite to arrow a, but it is desirable that the rubber member in this case be soft in terms of riding comfort. In other words, it is desirable that the spring constant of the rubber member is small.
このようにラバーブツシュ７に対して互いに相反する特
性が要求されるが、従来の構成によっては、操安性と乗
り心地とを両立させることは困難であった。As described above, contradictory characteristics are required for the rubber bushing 7, but depending on the conventional configuration, it has been difficult to achieve both maneuverability and ride comfort.
（発明の目的）
本発明は、上記事情に鑑みてなされたもので、艮安性の
向上と乗り心地の改善とを両立させることができる自動
車のフロントサスペンションを提供することを目的とす
る。(Object of the Invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a front suspension for an automobile that can improve both stability and ride comfort.
（発明の構成）
本発明は、Ａ形サスペンションアームの車体枢着部を車
体部材に枢着する場合にその枢着部分に介在される、内
筒と外筒との間にラバー部材を嵌装したラバーブツシュ
を、そのラバー部材が車体側に向って圧縮される場合の
車幅方向のばね定数の値がそれと反対方向に圧縮される
場合の値よりも大であるように構成したことを特徴とす
る。(Structure of the Invention) The present invention provides a method for fitting a rubber member between an inner cylinder and an outer cylinder that are interposed at the pivot joint part of an A-type suspension arm when the joint part of the vehicle body is pivotally connected to a vehicle body member. The rubber bushing is configured such that the spring constant value in the vehicle width direction when the rubber member is compressed toward the vehicle body is larger than the value when the rubber member is compressed in the opposite direction. do.
（発明の効果）
本発明の構成によれば、操安性の向上と乗り心地の改善
との双方を両立させることができる効果がある。(Effects of the Invention) According to the configuration of the present invention, there is an effect that it is possible to improve both the steering stability and the ride comfort.
（実 施 例）
以下本発明の実施例に２いて図面を参照して詳細に説明
する。(Example) Hereinafter, Example 2 of the present invention will be described in detail with reference to the drawings.
第１図および第２図において、１は車体５の前部左右に
設けられたＡ形サスペンションアームであり、このアー
ム１の外端には前輪２を支承する車軸受体３が取付けら
れており、この車軸受体３はダンパ４により車体５の取
付ブラケット部５ａに懸架され、かつダンパ４と車体５
との間にはスプリング６が設けられている。In FIGS. 1 and 2, 1 is an A-type suspension arm provided on the left and right sides of the front of the vehicle body 5, and an axle bearing 3 for supporting a front wheel 2 is attached to the outer end of this arm 1. , this axle bearing body 3 is suspended by a damper 4 on a mounting bracket portion 5a of a vehicle body 5, and the damper 4 and the vehicle body 5 are connected to each other.
A spring 6 is provided between the two.
人形サスペンションアームｌば車体前方側枢着部１ａと
車体後方側枢着部１ｂとを有し、車体前方側枢着部１ａ
は前輪車軸の車幅方向の延長線上またはその近傍におい
て車体側サブフレーム５ｂにラバーブツシュ７を介して
枢着されており、また車体後方側枢着部１ｂはラバーブ
・２シユ８を介して車体側サブフレーム５ｂに枢着され
ている。The doll suspension arm 1 has a front side pivot portion 1a of the vehicle body and a rear side pivot portion 1b of the vehicle body, and the front side pivot portion 1a of the vehicle body.
is pivotally connected to the vehicle body side subframe 5b via a rubber bush 7 on or near the extension line of the front wheel axle in the vehicle width direction, and the vehicle body rear side pivot joint portion 1b is connected to the vehicle body side via a rubber bush 8. It is pivotally attached to the subframe 5b.
前方側のラバーブツシュ７は、第３図および第４図に示
すように、内筒９と外筒１０との間にラバー部材１１を
嵌装したものよりなり、がっそのラバー部材１１の一側
部（図の左側部分）に空洞１２が形成された構成を有す
る。このようにラバーブツシュ７のラバー部材１１に空
洞１２が設けられていることにより、内筒９を固定した
状態において、外筒１０を図の左方（ａ方向）および右
方（ｂ方向）に押圧してラバー部材１１を圧縮する場合
を考えるとき、ラバー部材１１を図の左方（ａ方向）に
圧縮する場合のばね定数の値が、ラバー部材１１を図の
右方（ｂ方向）に圧縮する場合のばね定数の値よりも大
となる。以上のような構成を有するラバーブツシュ７は
、ラバー部材Ｉｔに設けられた空洞１２を車体側（図の
左方）に位πさせた状態で外筒１ｏをＡ形サスペンショ
ンアーム１の車体前方側枢着部１ａの取付孔（図示せず
）内に挿入した状態で固着され、さらにラバーブツシュ
７は車体側サブフレーム５ｂの下面に固着された取付ブ
ラケット１５内に挿入され、その内筒９をこれに挿入さ
れた連結ボルト１６により取付ブラケット１５に締着す
ることによりサブフレーム５ｂに取付けられる。As shown in FIGS. 3 and 4, the front rubber bush 7 is made up of a rubber member 11 fitted between an inner cylinder 9 and an outer cylinder 10, and one side of the rubber bush 11 is fitted between an inner cylinder 9 and an outer cylinder 10. It has a configuration in which a cavity 12 is formed in the left side part of the figure. By providing the cavity 12 in the rubber member 11 of the rubber bush 7, the outer cylinder 10 can be pressed to the left (direction a) and right (direction b) in the figure when the inner cylinder 9 is fixed. When considering the case where the rubber member 11 is compressed by It is larger than the value of the spring constant when The rubber bushing 7 having the above-mentioned configuration is configured so that the outer cylinder 1o is attached to the front pivot point of the A-type suspension arm 1 with the cavity 12 provided in the rubber member It positioned toward the vehicle body (left side in the figure). The rubber bushing 7 is inserted into a mounting hole (not shown) of the mounting portion 1a and fixed therein, and the rubber bushing 7 is further inserted into a mounting bracket 15 fixed to the lower surface of the vehicle body side subframe 5b, and the inner cylinder 9 is inserted into this. It is attached to the subframe 5b by fastening to the mounting bracket 15 using the inserted connecting bolt 16.
このようにラバーブツシュ７がＡ形サスペンションアー
ム１の車体前方側枢着部１ａの枢着部分に取付けられる
ことにより、第６図に示すように、ハンドルの操作によ
ってＡ形サスペンションアーム１の前輪支持部ＩＣに矢
Ａで示すような図の左方に向う力が加えられた場合、ラ
バーブツシュ７のラバー部材１１に、これを矢ａで示す
ような車幅方向に車体側に圧縮する力が作用するが、こ
の方向のラバー部材１１のばね定数は大きいから、操安
性を向上することができる。また走行中にブレーキが作
動されて前輪支持部ＩＣに矢Ｂで示すような車体後方に
向う力が加えられた場合、ラバーブツシュ７のラバー部
材１１に、これを矢すで示すような車幅方向に外方へ圧
縮する力が作用するが、この方向のラバー部材１１のば
ね定数は小さいから、乗り心地を改善することができる
のである。By attaching the rubber bushing 7 to the pivot portion of the front side pivot portion 1a of the A-type suspension arm 1, as shown in FIG. When a force is applied to the IC toward the left in the figure as shown by arrow A, a force acts on the rubber member 11 of the rubber bushing 7 to compress it toward the vehicle body in the vehicle width direction as shown by arrow a. However, since the spring constant of the rubber member 11 in this direction is large, steering stability can be improved. Also, when the brake is activated while driving and a force is applied to the front wheel support IC toward the rear of the vehicle as shown by the arrow B, the rubber member 11 of the rubber bushing 7 is forced to move in the vehicle width direction as shown by the arrow. An outward compressive force acts on the rubber member 11, but since the spring constant of the rubber member 11 in this direction is small, the riding comfort can be improved.
なお、第３図および第４図においては、ラバーブツシュ
７は、そのラバー部材１１の一側部に空洞１２を設けて
いるが、この空洞１２を設ぼる代りに、第５図に示すよ
うに、ラバー部材１１の他側部（図の右側部分）にスペ
ーサ１３を挿入した構成としてもよく、あるいは空洞１
２またはスペーサ１３を設ける代りに、ラバー部材１１
の硬度を部分的に変えたものでもよい。3 and 4, the rubber bushing 7 has a cavity 12 on one side of the rubber member 11, but instead of providing this cavity 12, as shown in FIG. The spacer 13 may be inserted into the other side of the rubber member 11 (the right side in the figure), or the spacer 13 may be inserted into the cavity 1.
2 or the spacer 13, the rubber member 11
The hardness may be partially changed.
第１図は本発明の一実施例による自り」車のフロントサ
スペンションの右側部分の平面図、第２図はその正面図
、第３図はそのラバーブツシュの軸線方向の断面図、第
４図は第３図ＩＶ−ｒＶ線に沿った断面図、第５図はラ
バーブツシュの変形を示す断面図、第６図はＡ形サスペ
ンションアームの動作の説明図である。
１−Ａ形すスベンソヨンアーム
１ａ−車体前方側枢着部
５ｂ−サブフレーム ７−ラハーブノソユ９−内筒
１０−外筒
１１−ラバー部材 】２−空洞
１３−スペーサ
特許出願人 マツダ株式会社
代理人 弁理士 山 元 俊 仁
第５区 第６図FIG. 1 is a plan view of the right side of the front suspension of a vehicle according to an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a sectional view of the rubber bushing in the axial direction, and FIG. FIG. 3 is a sectional view taken along the line IV-rV, FIG. 5 is a sectional view showing deformation of the rubber bush, and FIG. 6 is an explanatory diagram of the operation of the A-type suspension arm. 1-A type Subensoyon arm 1a-Vehicle front side pivot joint 5b-Subframe 7-Rahabnosoy 9-Inner cylinder
10-Outer cylinder 11-Rubber member] 2-Cavity 13-Spacer Patent applicant Mazda Motor Corporation agent Patent attorney Toshihito Yamamoto District 5 Figure 6
Claims (1)
アームの車体前方側枢着部が、内筒と外筒との間にラバ
ー部材を嵌装したラバーブッシュを介して、前輪車軸の
車幅の方向の延長線上またはその近傍において車体部材
に枢着されている自動車のフロントサスペンションにお
いて、 前記ラバーブッシュを、そのラバー部材が車幅方向に車
体側に向って圧縮される場合のばね定数の値がそれと反
対側に向って車幅方向に圧縮される場合の値よりも大で
あるように構成したことを特徴とする自動車のフロント
サスペンション。[Scope of Claims] The vehicle body forward side pivot portion of the A-type suspension arm constituting the front suspension is connected to the vehicle width of the front wheel axle via a rubber bush in which a rubber member is fitted between the inner cylinder and the outer cylinder. In a front suspension of an automobile that is pivotally connected to a vehicle body member on or near an extension line in the direction of A front suspension for an automobile, characterized in that the front suspension is configured such that the value is larger than the value when compressed in the vehicle width direction toward the opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24050685A JPS62101506A (en) | 1985-10-29 | 1985-10-29 | Front suspension for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24050685A JPS62101506A (en) | 1985-10-29 | 1985-10-29 | Front suspension for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62101506A true JPS62101506A (en) | 1987-05-12 |
Family
ID=17060529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24050685A Pending JPS62101506A (en) | 1985-10-29 | 1985-10-29 | Front suspension for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62101506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6452908U (en) * | 1987-09-30 | 1989-03-31 |
-
1985
- 1985-10-29 JP JP24050685A patent/JPS62101506A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6452908U (en) * | 1987-09-30 | 1989-03-31 |
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