JPS6124608A - Suspension device of car - Google Patents
Suspension device of carInfo
- Publication number
- JPS6124608A JPS6124608A JP14499584A JP14499584A JPS6124608A JP S6124608 A JPS6124608 A JP S6124608A JP 14499584 A JP14499584 A JP 14499584A JP 14499584 A JP14499584 A JP 14499584A JP S6124608 A JPS6124608 A JP S6124608A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- clamp mechanism
- helper
- vehicle
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
- B60G15/065—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper characterised by the use of a combination of springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
- B60G15/068—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit specially adapted for MacPherson strut-type suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
- B60G2202/312—The spring being a wound spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/124—Mounting of coil springs
- B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/128—Damper mount on vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/418—Bearings, e.g. ball or roller bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/45—Stops limiting travel
- B60G2204/4502—Stops limiting travel using resilient buffer
- B60G2204/45021—Stops limiting travel using resilient buffer for limiting upper mount movement of a McPherson strut
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は自動車などの懸架機構部に適用される車両用懸
架装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a vehicle suspension system applied to a suspension mechanism of an automobile or the like.
〔発明の技術的背景とその問題点］
車両の乗り心地や操縦安定性は懸架装置のばね定数によ
って大きく影響される。たとえば良路における直進走行
時にばばね定数が低い方が乗り心地がよいが、未舗装路
等の悪路走行時や進路変更時などでばばね定数が高い方
が走行安定性がよい。[Technical background of the invention and its problems] The ride comfort and handling stability of a vehicle are greatly influenced by the spring constant of the suspension system. For example, a lower spring constant provides better riding comfort when driving straight on a good road, but a higher spring constant provides better driving stability when driving on a rough road such as an unpaved road or when changing course.
また最近の自動車は前輪駆動車が増加する傾向にあるが
、前輪駆動車は乗車人数によって後輪荷重の変化が後輪
駆動車よりも大きく、例えば１名東車時ではね定数を設
定すると定員乗車時に車体後部が沈み込み、操縦安定性
が低下したり、夜間走行時の前照灯の照射方向などに悪
影響が出る。またこれらの対策として、撓みの増加に伴
ってばね定数が増加するような非線形特性のばねを用い
ることもあるが、充分な対策どは言いｔ「い。In addition, there is a tendency for front-wheel drive vehicles to increase in recent years, but front-wheel drive vehicles have a larger change in rear wheel load depending on the number of passengers than rear-wheel drive vehicles. At times, the rear of the vehicle sinks, reducing steering stability and adversely affecting the direction of headlights when driving at night. In addition, as a countermeasure to these problems, a spring with non-linear characteristics in which the spring constant increases as the deflection increases is sometimes used, but there is no sufficient countermeasure.
本発明は上記事情に基づきなされたものでその目的とす
るところは、車高が変わることなくばね定数を変化させ
ることのできるような車両用懸架装置を提供することに
ある。The present invention was developed based on the above circumstances, and an object of the present invention is to provide a suspension system for a vehicle in which the spring constant can be changed without changing the vehicle height.
本発明の要旨とするところは、軸方向に互いに伸縮可能
な第１部材および第２部材を備えたストラットと、上記
第１部材側の支持部と第２部材側の支持部との間に介設
した主ばねと、一端側を上記第１部材側に固定しかつ他
端側を上記第２部材に対して軸方向に移動自在とした補
助ばねと、上記補助ばねの自由端側に設けられかつ上記
第２部材に対する固定および固定の解除を任意に行なう
ことの可能なりランプ機構とを具備したことを特徴とす
る車両用懸架装置にある。The gist of the present invention is to provide a strut including a first member and a second member that are mutually expandable and contractible in the axial direction, and an intervening member between the support portion on the first member side and the support portion on the second member side. an auxiliary spring having one end fixed to the first member and the other end movable in the axial direction relative to the second member; and a auxiliary spring provided at the free end of the auxiliary spring. The suspension system for a vehicle is further provided with a ramp mechanism capable of fixing and releasing the fixation to the second member as desired.
上記構成によれば、上記クランプ機構を非締付状態にし
たときには補助ばねは実質的にばねとして機能せず、主
ばねのみの反発力が働くため低いぼね定数となる。一方
、クランプ機構を締付状態にすると補助ばねも主ばねと
共に働（ため双方のばね定数が加算されて全体としての
ばね定数は高くなる。すなわちクランプ機構を操作する
ことにより、車高を変化させることなくばね定数を少な
くとも２段階に切換えることができるようになり、乗り
心地や操縦安定性の向上などを図る上で効果がある。According to the above configuration, when the clamp mechanism is in the non-tightened state, the auxiliary spring does not substantially function as a spring, and only the repulsive force of the main spring acts, resulting in a low spring constant. On the other hand, when the clamp mechanism is tightened, the auxiliary spring also works together with the main spring (therefore, the spring constants of both are added and the overall spring constant becomes higher. In other words, by operating the clamp mechanism, the vehicle height can be changed. This makes it possible to switch the spring constant in at least two stages without any trouble, which is effective in improving ride comfort and handling stability.
以下に本発明の第１実施例につき第１図ないし第７図を
参照して説明する。第１図に示された懸架装置１におい
て、図中１０はストラットである。A first embodiment of the present invention will be described below with reference to FIGS. 1 to 7. In the suspension system 1 shown in FIG. 1, numeral 10 in the figure is a strut.
このストラット１０は、互いに軸方向に伸縮可能な第１
部材１１および第２部材１２を備えている。The struts 10 include first struts that are mutually axially expandable and retractable.
It includes a member 11 and a second member 12.
本実施例の場合、第１部材１１はシリンダに挿入された
ロッド、第２部材１２はストラッ１へ外筒である。そし
て通常のオイルダンパと同様に第１部材１１は第２部材
１２に摺動自在に挿入され、内部に設けた減衰力発生機
構に油が流通することにより減衰力が得られるようにな
っている。１３゜１４はバンプラバーである。In the case of this embodiment, the first member 11 is a rod inserted into a cylinder, and the second member 12 is an outer cylinder attached to the strap 1. As with a normal oil damper, the first member 11 is slidably inserted into the second member 12, and damping force is obtained by circulating oil to a damping force generating mechanism provided inside. . 13° and 14 are bump rubbers.
また第１部材１１の上端部には、上ばね座としては能す
る支持部１５が設けられている。そしてマウントインシ
ュレータ１６を介して車体側の部材１７に連結されるよ
うになっている。Further, a support portion 15 that functions as an upper spring seat is provided at the upper end portion of the first member 11. Then, it is connected to a member 17 on the vehicle body side via a mount insulator 16.
一方、第２部材１２には下ばね座としては能する支持部
２０が設けられている。そして上記支持部１５．２０間
に主ばね２１が圧縮した状態で介設されている。２２．
２３は上下のばねシートである。On the other hand, the second member 12 is provided with a support portion 20 that functions as a lower spring seat. A main spring 21 is interposed between the support parts 15 and 20 in a compressed state. 22.
23 are upper and lower spring sheets.
また、主はね２１の内側に補助はね２５が設けられてい
る。この補助ばね２５の一端側（図示上端側）は、上記
支持部１５にばねシート２７を介して、固定具２８によ
って固定されている。また補助はね２５の他端側すなわ
ち自由端側は、第２部材１２の外周面に対して少なくと
も軸方向に移動自在となっている。上記補助ばね２５と
主ばね２１は、円筒形コイルばねであっても非円筒形コ
イルばね（たる形等）であってもよい。また非線形特性
をもつものであっても勿論よい。Further, an auxiliary spring 25 is provided inside the main spring 21. One end side (upper end side in the figure) of this auxiliary spring 25 is fixed to the support portion 15 via a spring sheet 27 by a fixture 28. Further, the other end side, that is, the free end side of the auxiliary spring 25 is movable at least in the axial direction with respect to the outer peripheral surface of the second member 12. The auxiliary spring 25 and the main spring 21 may be cylindrical coil springs or non-cylindrical coil springs (barrel-shaped, etc.). Of course, it may also have nonlinear characteristics.
そして上記補助はね２５の自由端側にクランプ典構３０
が設けられている。このクランプ機構３０は、第２図に
例示したようにケーシング３１と、このケーシング３１
に取付けられたアクチュエータ３２と、このアクチュエ
ータ３２によって締付力の与えられるベルト３３などを
備えて構成される。A clamp mechanism 30 is attached to the free end side of the auxiliary spring 25.
is provided. This clamp mechanism 30 includes a casing 31 and a casing 31 as illustrated in FIG.
The belt 33 is configured to include an actuator 32 attached to the belt 32, a belt 33 to which a tightening force is applied by the actuator 32, and the like.
更に詳しくは、上記ケーシング３１は第２部材１２を挿
通させる円形の孔３５を有し、第２部材１２に対してス
トローククの範囲で軸方向に移動できるようになってい
る。ｅはサスペンションの動きを妨げない範囲の値とす
る。またケーシング３１は、ばねシート３６を介し、固
定具３７によって補助ばね２５の図示下端部に固定され
ている。More specifically, the casing 31 has a circular hole 35 through which the second member 12 is inserted, and is movable in the axial direction relative to the second member 12 within a stroke range. e is a value within a range that does not hinder the movement of the suspension. Further, the casing 31 is fixed to the lower end of the auxiliary spring 25 in the drawing by a fixing member 37 via a spring sheet 36.
上記ベル１〜３３はケーシングの孔３５の内面に沿って
配されている。そしてベルト３３の一端はアクチュエー
タ３２の固定側部材３２ａに連結され、またベルト３３
の他端はアクチュエータ３２の可動側部材３２ｂに連結
されている。上記アクチュエータ３２としては例えば油
圧シリンダ機構を用いており、配管３８を介して油圧を
与えてロツド３２ｃを伸長させることにより、上記ベル
ト３３に締付力を与えるようになっている。上記クラン
プ機構３０は本実施例で述べたようなバンドブレーキ方
式に限らず、他の制動機構を用いてもよい。The bells 1 to 33 are arranged along the inner surface of the hole 35 of the casing. One end of the belt 33 is connected to the fixed side member 32a of the actuator 32, and the belt 33
The other end is connected to the movable member 32b of the actuator 32. For example, a hydraulic cylinder mechanism is used as the actuator 32, and a tightening force is applied to the belt 33 by applying hydraulic pressure through a pipe 38 to extend the rod 32c. The clamping mechanism 30 is not limited to the band brake type described in this embodiment, but other braking mechanisms may be used.
以上の如く構成された懸架装置１は、クランプ機構３０
が非締付状態（ＯＦＦ状態）にあるときには、補助ばね
２５の自由端側は第２部材１２に対し実質的に移動自在
である。すなわち、第１部材１１と第２部材１２とが相
対的に伸縮するどき′主ばね２１のみがばねとして機能
する。従ってばね定数は低くなり、良路での乗り心地が
良くなる。The suspension device 1 configured as described above includes the clamp mechanism 30
When in the untightened state (OFF state), the free end side of the auxiliary spring 25 is substantially movable with respect to the second member 12. That is, when the first member 11 and the second member 12 relatively expand and contract, only the main spring 21 functions as a spring. Therefore, the spring constant becomes low and the ride comfort on good roads becomes better.
一方、クランプ機構３０を締付状態（ＯＮ状態）にして
補助ばね２５の自由端側を第２部材１２に拘束させると
、補助ばね２５と主ばね２１とが並列に働くばねとなり
、双方のはね定数が加算されて高いぼね定数が得られる
。このため悪路走行時や進路変更時などにおいて操縦安
定性を向上させる上で有効である。しかも車高を変化さ
せることなしに、ばね定数を切換えることができる。On the other hand, when the clamp mechanism 30 is tightened (ON state) and the free end side of the auxiliary spring 25 is restrained by the second member 12, the auxiliary spring 25 and the main spring 21 become springs that work in parallel, and both The bending constants are added to obtain a higher bending constant. Therefore, it is effective in improving steering stability when driving on rough roads or changing course. Moreover, the spring constant can be changed without changing the vehicle height.
また、第３図に例示したようにハンドル角、アクセル開
度、ブレーキ踏み代などをそれぞれセンサで感知し、例
えばハンドル角信号４１、アクセル開度信号４２、ブレ
ーキ踏み代信号４３などの信号をマイクロコンピュータ
を用いた制御器４０に送り、ある一定レベルの信号が制
御器４０に入力されたときクランプ機構３０を動作させ
たり、あるいは各センサからの信号にもとづき車体の状
態を制御器４０により判断してクランプ機構３０を動作
させ、ばね定数を変化させるようにしてもいるが、定員
乗車となることにより後輪にかかる荷重が前輪に比べて
増大し、車両後部が沈むような状態になる。従ってこの
場合には、空車時に予めクランプ機構３０をＯＮし、は
ね定数を高めておくことにより、後サスペンションの撓
みを小さくすることができ、車両後部の沈み込みが小さ
くなる。In addition, as illustrated in FIG. 3, the handle angle, accelerator opening, brake pedal distance, etc. are detected by sensors, and signals such as the steering wheel angle signal 41, accelerator pedal opening signal 42, and brake pedal pedal distance signal 43 are sent to the microcontroller. The signals are sent to a controller 40 using a computer, and when a signal of a certain level is input to the controller 40, the clamp mechanism 30 is operated, or the controller 40 determines the state of the vehicle body based on the signals from each sensor. Although the clamp mechanism 30 is operated to change the spring constant, as the number of passengers increases, the load applied to the rear wheels increases compared to the front wheels, causing the rear of the vehicle to sink. Therefore, in this case, by turning on the clamp mechanism 30 in advance to increase the spring constant when the vehicle is empty, the deflection of the rear suspension can be reduced, and the sinking of the rear portion of the vehicle can be reduced.
また、急制動時には第５図に示すように重心回りにモー
メントＭがはたらき、前サスペンションでは荷重が増大
して撓みが大きくなる一方、後サスペンションでは荷重
が減少し撓みが小さくなり、その結果車両前部の沈み込
みが発生する。従ってこの場合、急制動を感知するセン
サなどからの信号にもとづいてクランプ機構３０をＯＮ
することにより、主ばねによる力Ｆ１．Ｆ２に補助ばね
による力ｆ、、ｆ２を加えれば、車両前部の沈み込みを
小さくできる。また車両姿勢の復元力は（Ｆ１＋ｆ１
）と（Ｆ２＋ｆ２）の差であり、現行サスペンションの
ものと比較して大きく、速やかに車両姿勢を復元できる
。In addition, during sudden braking, a moment M acts around the center of gravity as shown in Figure 5, and the load on the front suspension increases and the deflection becomes large, while the load on the rear suspension decreases and the deflection becomes small, resulting in a Subsidence occurs. Therefore, in this case, the clamp mechanism 30 is turned on based on a signal from a sensor that detects sudden braking.
By doing so, the force F1 due to the main spring is reduced. By adding forces f, , f2 from the auxiliary springs to F2, it is possible to reduce the sinking of the front of the vehicle. In addition, the restoring force of the vehicle attitude is (F1+f1
) and (F2+f2), which is larger than that of the current suspension, and allows the vehicle attitude to be restored quickly.
また、急発進時には第６図に示すように重心回りにモー
メントＭ′がはたらき、前サスペンションでは荷重が減
少して撓みが小さくなる一方、後サスペンションでは荷
重が増大し撓みが大きくなり、その結果車両後部の沈み
込みが発生する。従ってこの場合には、急発進を感知す
るセンサなどからの信号にもとづいてクランプ機構３０
をＯＮすることにより、主ばねの撓みによる力Ｆｌ。In addition, when starting suddenly, a moment M' acts around the center of gravity as shown in Figure 6, and while the load on the front suspension decreases and the deflection becomes smaller, the load on the rear suspension increases and the deflection increases, resulting in the vehicle Rear subsidence occurs. Therefore, in this case, the clamp mechanism 30
By turning ON, the force Fl due to the deflection of the main spring is increased.
Ｆ２に補助ばねの撓みによるｆｌ、ｆ２を加えれば、車
両後部の沈み込みが小さくなる。また車両姿勢の復元力
は（Ｆ＋ ＋ｆ１）と（Ｆ２ ＋ｆ２ ＞の差であり、
現行サスペンションのものと比較して大きく、速やかに
車両姿勢を復元できる。If fl and f2 due to the deflection of the auxiliary spring are added to F2, the sinking of the rear of the vehicle will be reduced. Also, the restoring force of the vehicle attitude is the difference between (F+ + f1) and (F2 + f2 >,
It is larger than the current suspension and can quickly restore the vehicle's posture.
第７図は急旋回時の車両姿勢を示している。へ方向に急
旋回した場合、重心回りにモーメントＭｎがはたらき、
旋回内側のサスペンションでは荷重が減少し、撓みが小
さくなる一方、旋回外側のサスペンションでは荷重が増
大し撓みが大きくなる。その結果ローリングが発生する
。従ってこの場合、旋回時にクランプ機構３０をＯＮに
しておくことにより、主ばねの撓みによる力Ｆ３゜Ｆ４
に加えて補助ばねの撓みによる力ｆ３とｆ４を加えれば
、ローリングが小さくなる。また車両姿勢の復元力は（
Ｆ３ ＋ｆ３ ）と（Ｆ４ ＋ｆ４ ）の差であり、そ
の差は現行サスペンションのものと比較して大きく、速
やかに車両姿勢を復元できる。FIG. 7 shows the vehicle attitude during a sharp turn. When a sudden turn is made in the direction of , a moment Mn acts around the center of gravity,
The load on the suspension on the inside of the turn decreases and the deflection becomes smaller, while the load on the suspension on the outside of the turn increases and the deflection increases. As a result, rolling occurs. Therefore, in this case, by keeping the clamp mechanism 30 ON during turning, the force due to the deflection of the main spring can be reduced by F3°F4.
If forces f3 and f4 due to the deflection of the auxiliary springs are added to this, the rolling will be reduced. In addition, the restoring force of the vehicle attitude is (
This is the difference between F3 + f3 ) and (F4 + f4 ), and the difference is larger than that of the current suspension, allowing the vehicle attitude to be quickly restored.
なお第８図は本発明の第２実施例を示すものであって、
この場合、補助ばね２５の軸線方向に２箇所のクランプ
機構３０８，３０ｂを設けている。Note that FIG. 8 shows a second embodiment of the present invention,
In this case, two clamp mechanisms 308 and 30b are provided in the axial direction of the auxiliary spring 25.
その他の基本的構成は第１実施例とほぼ同様であるから
、第１実施例と共通する部位については同一符号を付し
て説明を省略し、相違する点につき以下説明する。Since the other basic configurations are almost the same as those of the first embodiment, the same reference numerals are given to the parts common to the first embodiment, and the explanation thereof will be omitted, and the different points will be explained below.
この第２実施例の補助ばね２５は、図示上側に位置する
第１部分２５ａと、図示下側に位置する第２部分２５ｂ
とからなる。そしてこれら両部会２５ａ、２５ｂの間に
第１のクランプ機構３０８を設けているとともに、第２
部分３０’ｂの端部に第２のクランプ機構３０ｂを設け
ている。これらクランプ機構３０ａ、３０ｂの構造は、
第１実施例で述べたクランプ機構３０と同様に、ケーシ
ング３１やアクチュエータ３２、そしてベルト３３など
からなる。２７ａと３６８ばばねシートである。また２
８ａと３７８は固定具を示している。The auxiliary spring 25 of the second embodiment has a first portion 25a located on the upper side in the drawing and a second portion 25b located on the lower side in the drawing.
It consists of A first clamp mechanism 308 is provided between these two sections 25a and 25b, and a second
A second clamping mechanism 30b is provided at the end of the portion 30'b. The structure of these clamp mechanisms 30a and 30b is as follows:
Similar to the clamp mechanism 30 described in the first embodiment, it includes a casing 31, an actuator 32, a belt 33, and the like. 27a and 368 spring sheets. Also 2
8a and 378 indicate fixtures.
上記のように構成される第２実施例は、第１および第２
のクランプ機１３０ａ、３０ｂを共に非締付状態（ＯＦ
Ｆ）にすると、実質的に主ばね２１のみがばねとして働
くからばね定数は低くなる。The second embodiment configured as described above has the first and second
Both the clamping machines 130a and 30b are in the non-tightened state (OF
In case of F), the spring constant becomes low because only the main spring 21 substantially acts as a spring.
一方、第・１のクランプ機構３０ａをＯＦＦにし、第２
のクランプ機構３０ｂのみをＯＮにすると、補助ばねの
第１部分２５ａと第２部分２５ｂを直列につないだ状態
のばね定数が主ばね２１のばね定数に付加される。従っ
て、主ばね２１のみの場合に比較してばね定数は高くな
る。更に、第１のクランプ機構３０ａをＯＮにすれば、
補助ばねの第１部分２５ａのみが主ばね２１が並列とな
るため、更にばね定数が高くなる。すなわちこの第２実
施例によれば、３段階にばね定数を変化させることがで
きるものである。Meanwhile, the first clamp mechanism 30a is turned off, and the second
When only the clamp mechanism 30b is turned on, the spring constant of the first part 25a and second part 25b of the auxiliary spring connected in series is added to the spring constant of the main spring 21. Therefore, the spring constant is higher than when only the main spring 21 is used. Furthermore, if the first clamp mechanism 30a is turned on,
Since only the first portion 25a of the auxiliary spring is parallel to the main spring 21, the spring constant is further increased. That is, according to this second embodiment, the spring constant can be changed in three stages.
なお本発明の懸架装置基、車種に応じて前輪サスペンシ
ョンのみ、あるいは後輪サスペンションのみに用いても
本発明の所期の目的は達成できる。Note that the intended purpose of the present invention can be achieved even if the suspension system of the present invention is used only for the front wheel suspension or only for the rear wheel suspension, depending on the type of vehicle.
また、上記２つの実施例では説明の都合上、ストラット
外筒を第２部材とし、またロッドを第１部材どしたが、
これらの関係は逆であってもよい。In addition, in the above two embodiments, for convenience of explanation, the strut outer cylinder was used as the second member, and the rod was used as the first member.
These relationships may be reversed.
またロッドの外側にカバー筒を設け、このカバー筒が第
１部材または第２部材となる場合もある。Further, a cover tube may be provided on the outside of the rod, and this cover tube may serve as the first member or the second member.
また、大きい締付力にも耐えかつ摩擦係数を増加させる
ために、第９図に例示したように、ストラット外筒の外
側に、更に摩擦係数の大きい材質からなる外筒１２′を
設けてもよい。Furthermore, in order to withstand large clamping forces and increase the coefficient of friction, an outer cylinder 12' made of a material with an even higher coefficient of friction may be provided on the outside of the strut outer cylinder, as illustrated in FIG. good.
上述したように本発明によれば、はね定数を少なくとも
２段階以上に切換えることができるようになり、乗り心
地の向上あるいは車両姿勢の安定化などを図る上で大き
な効果がある。As described above, according to the present invention, it becomes possible to switch the spring constant into at least two or more stages, which is highly effective in improving ride comfort and stabilizing the vehicle posture.
第１図ないし第３図は本発明の第１実施例を示し、第１
図は懸架装置を一部断面で示す正面図、第２図はクラン
プ機構部の横断面図、第３図は制御器と懸架装置の関係
を示す概略図、第４図から第７図はそれぞれ互いに異な
る車両姿勢を示す概略図、第８図は本発明の第２実施例
に係る懸架装置を一部断面で示す正面図、第９図はスト
ラッ１−・外筒の一変形例を示す断面図である。
１・・・懸架装置、１０・・・ストラット、１１・・・
第１部材、１２・・・第２部材、１５・・・第１部材側
の支持部、２０・・・第２部材側の支持部、２１・・・
主ばね、２５・・・補助ばね、３０．３０ａ、３０ｂ・
・・クランプ機構、３２・・・アクチュエータ、３３・
・・ベルト。
出願人代理人 弁理士 鈴江武彦
第３図
第５図
第６図
第７図
領）８図1 to 3 show a first embodiment of the present invention.
The figure is a partially sectional front view of the suspension system, Figure 2 is a cross-sectional view of the clamp mechanism, Figure 3 is a schematic diagram showing the relationship between the controller and the suspension system, and Figures 4 to 7 are respectively Schematic diagrams showing mutually different vehicle postures, FIG. 8 is a partially sectional front view of a suspension system according to a second embodiment of the present invention, and FIG. 9 is a sectional diagram showing a modified example of the strut 1 and the outer cylinder. It is a diagram. 1... Suspension device, 10... Strut, 11...
First member, 12... Second member, 15... Support part on the first member side, 20... Support part on the second member side, 21...
Main spring, 25...Auxiliary spring, 30.30a, 30b.
... Clamp mechanism, 32 ... Actuator, 33.
··belt. Applicant's Representative Patent Attorney Takehiko Suzue Figure 3 Figure 5 Figure 6 Figure 7) Figure 8
Claims (3)
材を備えたストラットと、上記第１部材側の支持部と第
２部材側の支持部との間に介設した主ばねと、一端側を
上記第１部材側に固定しかつ他端側を上記第２部材に対
して軸方向に移動自在とした補助ばねと、上記補助ばね
の自由端側に設けられかつ上記第２部材に対する固定お
よび固定の解除を任意に行なうことの可能なクランプ機
構とを具備したことを特徴とする車両用懸架装置。(1) a strut including a first member and a second member that are mutually expandable and contractible in the axial direction; a main spring interposed between the support portion on the first member side and the support portion on the second member side; an auxiliary spring having one end fixed to the first member and the other end movable in the axial direction relative to the second member; A vehicle suspension system comprising a clamp mechanism that can be fixed and unfixed at will.
にして設けたベルトと、このベルトに締付力を与えるア
クチュエータとを備えて構成されることを特徴とする特
許請求の範囲第（１）項記載の車両用懸架装置。(2) Claim (1) characterized in that the clamp mechanism includes a belt provided so as to surround the second member, and an actuator that applies a tightening force to the belt. The vehicle suspension system described in Section 1.
ンプ機構を備えていることを特徴とする特許請求の範囲
第（１）項記載の車両用懸架装置。(3) The vehicle suspension system according to claim (1), wherein the auxiliary spring is provided with the clamp mechanism at two or more locations in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14499584A JPS6124608A (en) | 1984-07-12 | 1984-07-12 | Suspension device of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14499584A JPS6124608A (en) | 1984-07-12 | 1984-07-12 | Suspension device of car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6124608A true JPS6124608A (en) | 1986-02-03 |
Family
ID=15375019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14499584A Pending JPS6124608A (en) | 1984-07-12 | 1984-07-12 | Suspension device of car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6124608A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241135A (en) * | 1988-06-16 | 1990-02-09 | Haag Streit Ag | Height adjustment support for apparatus |
| JPH0465276A (en) * | 1990-07-06 | 1992-03-02 | Dainichiseika Color & Chem Mfg Co Ltd | Ink ribbon |
| US6155543A (en) * | 1999-01-27 | 2000-12-05 | Daimlerchrysler Corporation | Spring seat assembly for an automotive vehicle |
| JP2009257800A (en) * | 2008-04-14 | 2009-11-05 | Niigata Seiki Kk | Electronic level |
| KR100962203B1 (en) * | 2008-07-25 | 2010-06-10 | 현대자동차주식회사 | Strut type suspension system |
| WO2015004676A1 (en) * | 2013-07-11 | 2015-01-15 | Kpit Technologies Limited | A dynamically adjustable suspension device |
| JP2019188839A (en) * | 2018-04-18 | 2019-10-31 | マツダ株式会社 | Suspension device of vehicle |
-
1984
- 1984-07-12 JP JP14499584A patent/JPS6124608A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241135A (en) * | 1988-06-16 | 1990-02-09 | Haag Streit Ag | Height adjustment support for apparatus |
| JPH0465276A (en) * | 1990-07-06 | 1992-03-02 | Dainichiseika Color & Chem Mfg Co Ltd | Ink ribbon |
| US6155543A (en) * | 1999-01-27 | 2000-12-05 | Daimlerchrysler Corporation | Spring seat assembly for an automotive vehicle |
| JP2009257800A (en) * | 2008-04-14 | 2009-11-05 | Niigata Seiki Kk | Electronic level |
| KR100962203B1 (en) * | 2008-07-25 | 2010-06-10 | 현대자동차주식회사 | Strut type suspension system |
| WO2015004676A1 (en) * | 2013-07-11 | 2015-01-15 | Kpit Technologies Limited | A dynamically adjustable suspension device |
| US10315479B2 (en) | 2013-07-11 | 2019-06-11 | Kpit Technologies Ltd. | Dynamically adjustable suspension device |
| JP2019188839A (en) * | 2018-04-18 | 2019-10-31 | マツダ株式会社 | Suspension device of vehicle |
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