JPH0257413A - Suspension device for automobile - Google Patents
Suspension device for automobileInfo
- Publication number
- JPH0257413A JPH0257413A JP20965488A JP20965488A JPH0257413A JP H0257413 A JPH0257413 A JP H0257413A JP 20965488 A JP20965488 A JP 20965488A JP 20965488 A JP20965488 A JP 20965488A JP H0257413 A JPH0257413 A JP H0257413A
- Authority
- JP
- Japan
- Prior art keywords
- link member
- link
- vehicle body
- arm
- link members
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 title claims description 15
- 238000010586 diagram Methods 0.000 description 3
- 241001247986 Calotropis procera Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
Landscapes
- 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、自動車の操舵輪を車体に懸架するサスペンシ
ョン装置に関し、特に、車輪支持部材を車体に上下揺動
可能に連結するアームが２本のリンク部材からなるもの
に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a suspension device for suspending steering wheels of an automobile on a vehicle body, and in particular, a suspension device that includes two arms that connect a wheel support member to the vehicle body in a vertically swingable manner. This relates to a link member consisting of a link member.
（従来の技術）
従来より、自動車のサスペンション装置としては、操舵
輪を回転自在に支持する車輪支持部材と、該車輪支持部
材の上部および下部をそれぞれ車体に上下揺動可能に連
結するアッパアームおよびロアアームとを備えたダブル
ウィツシュボーン式のもの、また、上記アッパアームの
代りにストラットを用いて車輪支持部材の上部を車体に
連結するストラット式のものなどが知られている。(Prior Art) Conventionally, suspension devices for automobiles include a wheel support member that rotatably supports a steered wheel, and an upper arm and a lower arm that connect the upper and lower parts of the wheel support member to the vehicle body so as to be able to swing up and down, respectively. There are also known double wishbone type wheels, and strut type wheels, in which a strut is used in place of the upper arm to connect the upper part of the wheel support member to the vehicle body.
ところで、上記アッパアームおよびロアアームは、鋼板
プレスよりなる一体成形品のいわゆるＡ型アームが一般
に多く使用されているが、一端が各々直接車輪支持部材
に連結される２本のリンク部材からなるものも使用され
ることがある。特に、特開昭５９−２２３５０７号公報
には、操縦性の向上を図る見地からキングピンオフセッ
トを零ないし負の値に近づけるために、アッパアームを
２本のリンク部材で構成し、かつ該２本のリンク部材を
車体上方から平面的に見て互いにクロスした状態に配置
することが開示されている。尚、キングピンオフセット
とは、車体前後方向から見たときの路面上におけるキン
グピン軸と車輪中心軸との間の間隔をいう。また、アー
ムが２本のリンク部材からなる場合、操舵輪の操舵回転
中心軸たるキングピン軸は、上記２本のリンク部材の軸
心線同士またはその延長線同士の交点を通る直線である
。By the way, while the above-mentioned upper arm and lower arm are generally so-called A-type arms that are integrally molded products made of pressed steel plates, those that are made of two link members each having one end directly connected to a wheel support member are also used. may be done. In particular, Japanese Patent Application Laid-Open No. 59-223507 discloses that in order to bring the kingpin offset close to zero or a negative value from the viewpoint of improving maneuverability, the upper arm is composed of two link members, and It is disclosed that the link members are arranged so as to cross each other when viewed in plan from above the vehicle body. Note that the kingpin offset refers to the distance between the kingpin axis and the wheel center axis on the road surface when viewed from the longitudinal direction of the vehicle body. Further, when the arm is composed of two link members, the kingpin axis, which is the steering rotation center axis of the steering wheel, is a straight line passing through the intersection of the axes of the two link members or their extensions.
（発明が解決しようとする課題）
ところが、上記の如くアームを構成する２本のリンク部
材をクロス状態に配置する場合、操舵輪のバンブ・リバ
ウンドに伴ってリンク部材が上下揺動する際に該リンク
部材同士が干渉しないようにするために両者を上下方向
にある程度離隔しなければならず、リンク部材の車体ま
たは車輪支持部材との連結点の位置設定の自由度が上下
方向にその分小さくなるという問題がある。(Problem to be Solved by the Invention) However, when the two link members constituting the arm are arranged in a crossed state as described above, when the link members swing up and down due to the bump rebound of the steered wheel, the In order to prevent the link members from interfering with each other, it is necessary to separate them to some extent in the vertical direction, and the degree of freedom in setting the position of the connection point of the link member with the vehicle body or wheel support member is correspondingly reduced in the vertical direction. There is a problem.
本発明はかかる点に鑑みてなされたものであり、その目
的とするところは、アームが２本のリンク部材からなる
ものにおいて、該２本のリンク部材の配置を適宜設定し
て、キングピンオフセットを自在に設定可能としつつ、
リンク部材の連結点の上下位置の自由度を高め得るよう
にするものである。The present invention has been made in view of the above, and its object is to appropriately set the arrangement of the two link members in an arm consisting of two link members to reduce the kingpin offset. While being freely configurable,
This makes it possible to increase the degree of freedom in the vertical position of the connection point of the link member.
（課題を解決するための手段）
上記目的を達成するため、本発明の解決手段は、自動車
のサスペンション装置として、操舵輪を支持する車輪支
持部材を車体に上下揺動可能に連結するアームを有し、
該アームは、一端が各々直接車輪支持部材に連結される
２本のリンク部材からなることを前提とする。そして、
上記２本のリンク部材を、車体上方から平面的に見て互
いに離れて位置させかつ一方のリンク部材の軸延長線が
他方のリンク部材と交差するように配置する構成とする
ものである。(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention is a suspension device for an automobile that has an arm that connects a wheel support member that supports a steered wheel to a vehicle body in a vertically swingable manner. death,
It is assumed that the arm consists of two link members each having one end directly connected to a wheel support member. and,
The two link members are positioned apart from each other when viewed from above the vehicle body, and arranged so that the axial extension line of one link member intersects with the other link member.
（作用）
上記の構成により、本発明では、アームを構成する２本
のリンク部材において、その一方のリンク部材の軸延長
線が他方のリンク部材と平面的に交差しているため、こ
の交点を通るキングピン軸は、該交点の位置を他方のリ
ンク部材上で変更することにより傾きが変ることになり
、これによりキングピンオフセットを任意に設定するこ
とができることになる。(Function) With the above configuration, in the present invention, in the two link members constituting the arm, the axial extension line of one link member intersects the other link member in a plane, so this intersection point is The inclination of the king pin axis passing through the link member can be changed by changing the position of the intersection on the other link member, and thereby the king pin offset can be set arbitrarily.
しかも、上記両リンク部材は平面的には互いにオーバー
ラツプしていないので、この両リンク部材が仮に上下方
向に同一位置の平面上に位置する場合でも、上下揺動の
際などにリンク部材同士が干渉することはなく、よって
、リンク部材の車体または車輪支持部材との連結点の上
下位置の自由度を高め得ることになる。Moreover, since the above two link members do not overlap each other in a plane, even if the two link members are located on the same plane in the vertical direction, the link members will interfere with each other when vertically swinging. Therefore, the degree of freedom in the vertical position of the connection point between the link member and the vehicle body or the wheel support member can be increased.
（実施例） 以下、本発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
第１図ないし第３図は本発明の第１実施例に係わる自動
車のダブルウィツシュボーン式のフロントサスペンショ
ン装置を示し、１は前輪２を回転自在に支持する車輪支
持部材であって、該車輪支持部材１は、その上端がアッ
パアーム３により、下端がロアアーム４によりそれぞれ
車体に上下揺動可能に連結されている。1 to 3 show a double wishbone type front suspension device for an automobile according to a first embodiment of the present invention, in which reference numeral 1 denotes a wheel support member that rotatably supports a front wheel 2; The support member 1 is connected to the vehicle body by an upper arm 3 at its upper end and by a lower arm 4 at its lower end so as to be vertically swingable.
上記アッパアーム３は互いに独立した２本のリンク部材
３ａ、３ｂからなり、該両リンク部材３ａ、３ｂは、前
輪２よりも上方の略同−平面上に配置されている。また
、両リンク部材３ａ、３ｂのうちの一方のリンク部材（
以下、第１のリンク部材という）３ａは略車体横方向に
延びて配置されており、他方のリンク部材（以下、第２
のリンク部材という）３ｂは、車体上方から平面的にみ
て上記第１のリンク部材３ａとオーバーラツプしないよ
う該第１のリンク部材３ａよりも前方で略車体前後方向
に延びかつその後方への軸延長線が第１のリンク部材３
ａと交差するように配置されている。上記両リンク部材
３ａ、３ｂの一端（第１のリンク部材３ａの外端および
第２のリンク部材３ｂの後端）はそれぞれボールジヨイ
ント５゜６により車輪支持部材１の上端に回転自在に１
かつ直接連結されている一方、両リンク部材３ａ、３ｂ
の他端（第１のリンク部材３ａの内端および第２のリン
ク部材３ｂの前端）は車体にラバーブツシュ７．８を介
して車体に枢着されている。The upper arm 3 is composed of two link members 3a and 3b that are independent of each other, and the link members 3a and 3b are arranged on substantially the same plane above the front wheel 2. Moreover, one link member (of both link members 3a, 3b)
The first link member (hereinafter referred to as the first link member) 3a is arranged to extend substantially in the lateral direction of the vehicle body, and the other link member (hereinafter referred to as the second
The link member 3b extends approximately in the longitudinal direction of the vehicle body forward of the first link member 3a so as not to overlap with the first link member 3a when viewed from above the vehicle body, and has an axis extending to the rear thereof. The line is the first link member 3
It is arranged to intersect with a. One end of both link members 3a and 3b (the outer end of the first link member 3a and the rear end of the second link member 3b) is rotatably connected to the upper end of the wheel support member 1 by a ball joint 5°6, respectively.
and both link members 3a, 3b are directly connected.
The other ends (the inner end of the first link member 3a and the front end of the second link member 3b) are pivotally connected to the vehicle body via rubber bushings 7.8.
一方、上記ロアアーム４は１つの二叉形状の部材（いわ
ゆるＡ型アーム）からなり、その内端は前後２箇所の部
位で各々ラバーブツシュ９，９を介して車体に枢着され
、外端はボールジヨイント１０により車輪支持部材１の
下端に回転自在に連結されている。On the other hand, the lower arm 4 is composed of one bifurcated member (a so-called A-type arm), the inner end of which is pivotally connected to the vehicle body at two locations, front and rear, via rubber bushes 9, 9, and the outer end is a ball It is rotatably connected to the lower end of the wheel support member 1 by a joint 10.
さらに、上記車輪支持部材１には車体後方に突出するア
ーム部１ａが形成され、該アーム部１ａの先端にはステ
アリング装置のタイロッド１１が連結されている。そし
て、ステアリング装置からの操舵力が車輪支持部材１に
伝達されることにより、前輪２が操舵輪として仮想キン
グピン軸に廻りに左右に操舵されるようになっている。Further, the wheel support member 1 is formed with an arm portion 1a that projects toward the rear of the vehicle body, and a tie rod 11 of a steering device is connected to the tip of the arm portion 1a. By transmitting the steering force from the steering device to the wheel support member 1, the front wheels 2 are steered left and right around the virtual kingpin axis as steered wheels.
ここで、仮想キングピン軸には、アッパアーム３の第１
のリンク部材３ａの軸線Ｌ１と第２のリンク部材３ｂの
軸延長線Ｌ２との交点Ｐ１と、ロアアーム４と車輪支持
部材１との連結中心点（ボールジヨイント１０の中心点
）Ｐ２とを通る直線である。Here, the virtual kingpin axis includes the first
It passes through the intersection P1 of the axis L1 of the link member 3a and the axis extension line L2 of the second link member 3b, and the connection center point P2 between the lower arm 4 and the wheel support member 1 (the center point of the ball joint 10). It is a straight line.
したがって、上記第１実施例においては、アッパアーム
３を２本のリンク部材３ａ、３ｂにより構成するととも
に、その一方のリンク部材（つまり第１のリンク部材）
３ａを車体横方向に配置し、他方のリンク部材（つまり
第２のリンク部材）３ｂを、上記第１のリンク部材３ａ
よりも前方で車体前後方向に延びかつその後方への軸延
長線Ｌ２が第１のリンク部材３ａと平面的に交差するよ
うに配置したことにより、操舵輪としての前輪２のキン
グピン軸には上記第１のリンク部材３ａ（軸線Ｌｌ）と
第２のリンク部材３ｂの軸延長線Ｌ２との交点Ｐ１を通
ることになる。また、その交点Ｐ１を第１のリンク部材
３ａ上つまり車体横方向の所定位置に設定することによ
り、キングピン軸ｋを所望の角度に傾斜させてキングピ
ンオフセットδを、操縦性の観点から零または負の値に
近付けるようにすることができる。Therefore, in the first embodiment, the upper arm 3 is composed of two link members 3a and 3b, and one of the link members (that is, the first link member)
3a is arranged in the lateral direction of the vehicle body, and the other link member (that is, the second link member) 3b is arranged in the lateral direction of the vehicle body, and the other link member (that is, the second link member) 3b
The kingpin shaft of the front wheel 2 serving as a steered wheel is arranged so that the shaft extension line L2 extending in the front-rear direction of the vehicle body and extending rearwardly intersects the first link member 3a in a plane. It passes through the intersection P1 between the first link member 3a (axis Ll) and the axial extension line L2 of the second link member 3b. Furthermore, by setting the intersection point P1 at a predetermined position on the first link member 3a, that is, in the lateral direction of the vehicle body, the kingpin axis k can be tilted at a desired angle, and the kingpin offset δ can be set to zero or negative from the viewpoint of maneuverability. can be made to approach the value of .
しかも、上記両リンク部材３ａ、３ｂは平面的には互い
にオーバーラツプしていないので、この両リンク部材３
ａ、３ｂが前輪２のバンブ・リバウンドに伴って上下揺
動するときにも部材干渉を起こすことはない。このため
、実施例の如く両リンク部材３ａ、３ｂを上下方向の同
一平面上に配置することもでき、リンク部材３ａ、３ｂ
の車体側連結点（ラバーブツシュ７．８）および車輪支
持部材側連結点（ボールジヨイント５，６）の上下位置
の自由度を高めることができる。Moreover, since the two link members 3a and 3b do not overlap each other in plan view, the two link members 3a and 3b do not overlap with each other in plan view.
Even when a and 3b swing up and down with the bump rebound of the front wheel 2, there is no interference between the members. Therefore, both the link members 3a, 3b can be arranged on the same plane in the vertical direction as in the embodiment, and the link members 3a, 3b
The degree of freedom in the vertical position of the vehicle body side connection points (rubber bushes 7.8) and the wheel support member side connection points (ball joints 5, 6) can be increased.
第４図および第５図は本発明の第２実施例に係わるサス
ペンション装置を示す。この第２実施例の場合、アッパ
アーム３を構成する２本のリンク部材３ａ、３ｂは、操
舵輪たる前輪２の回転中心の上側近傍位置で上下方向に
若干段違い状態に配置されている。また、第１のリンク
部材３ａは車体横方向に配置されている一方、第２のリ
ンク部材３ｂは、車体上方から平面的に見て第１のリン
ク部材３ｂとオーバーラツプしないよう該第１のリンク
部材３ｂよりも前側の位置で前方車体内側向きに傾斜し
て延びかつその後方への軸延長線が第１のリンク部材３
ａと交差するように配置されている。4 and 5 show a suspension device according to a second embodiment of the present invention. In the case of the second embodiment, the two link members 3a and 3b constituting the upper arm 3 are arranged at slightly different heights in the vertical direction near the upper side of the center of rotation of the front wheel 2, which is the steered wheel. Further, the first link member 3a is arranged in the lateral direction of the vehicle body, while the second link member 3b is arranged so as not to overlap with the first link member 3b when viewed from above the vehicle body. The first link member 3 extends at an angle toward the inside of the front vehicle body at a position on the front side of the member 3b, and the axial extension line to the rear thereof is the first link member 3.
It is arranged to intersect with a.
また、第６図および第７図は本発明の第３実施例に係わ
るサスペンション装置を示す。この第３実施例の場合、
ロアアーム４が、各々一端を車輪支持部材に連結する２
本のリンク部材４ａ、４ｂにより構成され、該両リンク
部材４ａ、４ｂは、車体上方から平面的に見て互いに若
干離れて位置しかつ一方のリンク部材４ａの軸延長線が
他方のリンク部材４ｂと交差するように配置されている
。6 and 7 show a suspension device according to a third embodiment of the present invention. In the case of this third embodiment,
Lower arms 4 each have one end connected to a wheel support member 2
The link members 4a, 4b are located slightly apart from each other when viewed from above the vehicle body, and the axial extension line of one link member 4a is the same as that of the other link member 4b. are arranged to intersect.
さらに、第８図および第９図は本発明の第４実施例に係
わるサスペンション装置を示す。この第４実施例の場合
、上記第３実施例の場合と同じくロアアーム４を２本の
リンク部材４ａ、４ｂにより構成したものであるが、こ
のリンク部材４ａ。Furthermore, FIGS. 8 and 9 show a suspension device according to a fourth embodiment of the present invention. In the case of this fourth embodiment, the lower arm 4 is constituted by two link members 4a and 4b as in the case of the third embodiment, and this link member 4a.
４ｂを上下方向に若干段違い状態に配置した点が異なる
。The difference is that 4b is arranged at slightly different levels in the vertical direction.
そして、上記第２、第３および第４実施例のいずれの場
合でも、上記第１実施例の場合と同様に、キングピン軸
の傾斜角ないしキングピンオフセットを適宜設定するこ
とができるとともに、リンク部材３ａ、３ｂまたは４ａ
、４ｂの車体側および車輪支持部材側連結点の上下位置
の自由度を高めることができるのは勿論である。In any of the second, third and fourth embodiments, as in the first embodiment, the inclination angle or kingpin offset of the kingpin axis can be set as appropriate, and the link member 3a , 3b or 4a
, 4b on the vehicle body side and on the wheel support member side, the degree of freedom in the vertical position can of course be increased.
（発明の効果）
以上の如く、本発明における自動車のサスペンション装
置によれば、アームを構成する２本のリンク部材を、車
体上方から平面的に見て互いにオーバーラツプさせずに
一方のリンク部材の軸延長線が他方のリンク部材と交差
する位置関係でもって配置したことにより、キングピン
オフセットの適切な設定を確保しながら、リング部材の
連結点の上下位置の自由度を高めることができ、実施化
を図る上で非常に有利なものである。(Effects of the Invention) As described above, according to the suspension device for an automobile according to the present invention, the two link members constituting the arm can be connected to the axis of one link member without overlapping each other when viewed from above the vehicle body. By arranging the extension line so that it intersects with the other link member, it is possible to increase the degree of freedom in the vertical position of the connection point of the ring member while ensuring an appropriate setting of the king pin offset, making it easier to implement. This is extremely advantageous for achieving this goal.
図面は本発明の実施例を示すもので、第１図ないし第３
図は第１実施例を示し、第１図は自動車のサスペンショ
ン装置の背面図、第２図および第３図はそれぞれ第１図
のＡ−Ａ線およびＢ−Ｂ線沿って見た平面図である。第
４図および第５図は第２実施例を示し、第４図はサスペ
ンション装置の模式平面図、第５図は同じく模式側面図
である。
第６図および第７図はそれぞれ第３実施例を示す第４図
相当図および第５図相当図であり、第８図および第９図
はそれぞれ第４実施例を示す第４図相当図および第５図
相当図である。The drawings show embodiments of the present invention, and FIGS.
The drawings show a first embodiment, in which Fig. 1 is a rear view of an automobile suspension device, and Figs. 2 and 3 are plan views taken along line A-A and line B-B in Fig. 1, respectively. be. 4 and 5 show a second embodiment, FIG. 4 is a schematic plan view of the suspension device, and FIG. 5 is a schematic side view of the suspension device. FIG. 6 and FIG. 7 are a diagram equivalent to FIG. 4 and FIG. 5, respectively, showing the third embodiment, and FIGS. 8 and 9 are a diagram equivalent to FIG. This is a diagram equivalent to Figure 5.
Claims (1)
可能に連結するアームを有し、該アームは、一端が各々
直接車輪支持部材に連結される２本のリンク部材からな
る自動車のサスペンション装置において、上記２本のリ
ンク部材は、車体上方から平面的に見て互いに離れて位
置しかつ一方のリンク部材の軸延長線が他方のリンク部
材と交差するように配置されていることを特徴とする自
動車のサスペンション装置。(1) It has an arm that connects a wheel support member that supports a steered wheel to the vehicle body in a vertically swingable manner, and the arm is composed of two link members each having one end directly connected to the wheel support member. In the suspension device, the two link members are located apart from each other when viewed from above the vehicle body, and are arranged such that the axial extension line of one link member intersects the other link member. Features of automobile suspension equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20965488A JP3135542B2 (en) | 1988-08-24 | 1988-08-24 | Automotive suspension equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20965488A JP3135542B2 (en) | 1988-08-24 | 1988-08-24 | Automotive suspension equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0257413A true JPH0257413A (en) | 1990-02-27 |
| JP3135542B2 JP3135542B2 (en) | 2001-02-19 |
Family
ID=16576387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20965488A Expired - Lifetime JP3135542B2 (en) | 1988-08-24 | 1988-08-24 | Automotive suspension equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3135542B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0357709A (en) * | 1989-07-25 | 1991-03-13 | Mitsubishi Motors Corp | Suspension for steering wheel of vehicle |
| JPH03153410A (en) * | 1989-11-07 | 1991-07-01 | Mitsubishi Motors Corp | Suspension for steering wheel of vehicle |
| US7407174B2 (en) | 2005-04-28 | 2008-08-05 | Honda Motor Co., Ltd. | Suspension system for vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101628279B1 (en) * | 2014-04-16 | 2016-06-08 | 인하대학교 산학협력단 | Business card using shape memory alloy |
-
1988
- 1988-08-24 JP JP20965488A patent/JP3135542B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0357709A (en) * | 1989-07-25 | 1991-03-13 | Mitsubishi Motors Corp | Suspension for steering wheel of vehicle |
| JPH03153410A (en) * | 1989-11-07 | 1991-07-01 | Mitsubishi Motors Corp | Suspension for steering wheel of vehicle |
| US7407174B2 (en) | 2005-04-28 | 2008-08-05 | Honda Motor Co., Ltd. | Suspension system for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3135542B2 (en) | 2001-02-19 |
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