KR960003495Y1 - Rear suspension of car - Google Patents

Rear suspension of car Download PDF

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Publication number
KR960003495Y1
KR960003495Y1 KR2019910024115U KR910024115U KR960003495Y1 KR 960003495 Y1 KR960003495 Y1 KR 960003495Y1 KR 2019910024115 U KR2019910024115 U KR 2019910024115U KR 910024115 U KR910024115 U KR 910024115U KR 960003495 Y1 KR960003495 Y1 KR 960003495Y1
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South Korea
Prior art keywords
trailing arm
suspension
vehicle
vehicle body
support shaft
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KR2019910024115U
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Korean (ko)
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KR930013653U (en
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전동기
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현대자동차 주식회사
전성원
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    • 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
    • B60G3/26—Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/005—Ball joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/462—Toe-in/out
    • 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
    • B60G2204/416—Ball or spherical joints
    • 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
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/02—Control of vehicle driving stability
    • B60Y2300/022—Stability in turns or during cornering
    • B60Y2300/0227—Stability in turns or during cornering related to under-steering

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

내용 없음.No content.

Description

자동차의 후륜 현가장치Rear suspension of car

제1도는 본 고안의 적용부위를 나타내기 위한 현가장치의 일부를 도시한 사시도.Figure 1 is a perspective view showing a part of the suspension device for showing the application of the subject innovation.

제2도는 본 고안에 의한 현가장치의 평면도.2 is a plan view of the suspension according to the present invention.

제3도는 본 고안에 적용되는 링크 아암의 평면도.3 is a plan view of a link arm applied to the present invention.

제4도는 본 고안의 작동 설명을 위한 개략적인 평면도.4 is a schematic plan view for explaining the operation of the present invention.

제5도는 종래 현가장치의 평면도이다.5 is a plan view of a conventional suspension device.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 지지축 2 : 트레일링 아암1: support shaft 2: trailing arm

3 : 휠 4 : 스프링3: wheel 4: spring

5 : 쇽 업소오버 6 : 탄성부시5: Shock Absorber 6: Elastic Bushing

7, 8 : 브라켓 10 : 토우 조절용 아암7, 8: bracket 10: tow adjustment arm

12 : 스텃 13 : 베어링12: swim 13: bearing

14 : 커버14: cover

본 고안은 자동차의 후륜 현가장치에 관한 것으로서, 보다 상세하게는 트레일링 아암형 현가장치의 전측부에 토우 조절용 아암을 추가 설치하여 자동차의 선회시 휠이 토우인(Toe-in)상태를 유지토록함으로써, 선회성능을 향상시키고, 언더 스티어링 경향을 갖도록하여 조종 안정성을 향상 시킬 수 있도록 한 자동차의 후륜 현가장치에 관한 것이다.The present invention relates to a rear suspension of an automobile, and more particularly, an additional tow adjustment arm is installed at the front side of the trailing arm suspension to maintain the wheel in a toe-in state when the vehicle is turning. The present invention relates to a rear wheel suspension of a vehicle which improves steering performance and improves steering stability by having an understeering tendency.

자동차에 있어서의 현가장치는 차축과 차체를 연결하여 주행할 때 차축이 노면에서 받는 진동이나 충격을 차체에 직접 전달되지 않도록 하여 차체나 화물의 손상을 방지하고 승차감을 좋게 하는 장치이다.Suspension in automobiles is a device that prevents damage to the vehicle body or cargo and improves ride comfort by preventing the axle from being directly transmitted to the vehicle body when vibrations or shocks received from the road surface when the vehicle is connected by connecting the axle and the vehicle body.

이와 같은 자동차의 현가장치는 대분(大分)하여 차측 현가식과 독립현가식이 있는데, 본 고안이 관계하는 트레일링 아암형 현가장치는 상기 독립 현가장치의 일종으로서, 1개 또는 2개의 트레일링 아암에 의해 휘일이 지지되는 방식으로 전륜(轉輪) 구동차량의 후륜 현가장치에 많이 사용되고 있으며, 후륜(後輪) 구동차량의 경우에는 거의 사용하지 않는다.The suspension of such a vehicle is largely divided into a vehicle side suspension type and an independent suspension type. The trailing arm type suspension system of the present invention is a kind of the independent suspension type, and is provided by one or two trailing arms. It is widely used in the rear wheel suspension of a front wheel drive vehicle in a way that a wheel is supported, and is hardly used in the case of a rear wheel drive vehicle.

즉, 제1도는 전륜 구동형 후륜 현가장치인 트레일링 아암형 현가장치의 일부 사시도로서, 지지축(1)의 양단에 트레일링 아암(2)이 결합되고 이의 트레일링 아암(1)의 후단에는 외측으로 휠(3)이 설치되며, 트레일링 아암(2)의 후측 상부에는 코일 스프링(4)과 쇽 업소오버(5)가 설치되어 그들의 상단부가 미도시된 차체와 연결되어진다.That is, FIG. 1 is a partial perspective view of a trailing arm suspension, which is a front wheel driven rear wheel suspension, in which trailing arms 2 are coupled to both ends of the support shaft 1, and trailing arms 1 at the rear end thereof. A wheel 3 is provided outward, and a coil spring 4 and a shock absorber 5 are provided at the rear upper portion of the trailing arm 2 so that their upper ends are connected to a vehicle body not shown.

이러한 현가장치를 차체에 고정함에 있어서, 종래에는 단순히 지지축(1)의 양단에 제5도에서와 같이 탄성부시(6)를 개재시켜 결합되는 브라켓(7)을 차체의 하부에 체결하는 수단으로 고정하는 것이 보편적이었다.In fixing the suspension device to the vehicle body, conventionally, as a means for fastening the bracket 7 coupled to the lower end of the vehicle body through the elastic bush 6 as shown in FIG. 5 at both ends of the support shaft 1. Fixing was universal.

그러나 상기와 같은 트레일링 아암형 현가장치에 있어서는 휠의 상, 하 진동시 윤거 및 캠버의 변화가 없어 차량의 직진 안정성은 매우 좋으나, 선회시 휠이 횡력이 가해지는 경우에는 제5도의 가상선과 같이 현가장치가 전체적으로 횡력을 받으면서 변형이 이루어져 선회 바깥쪽의 휠이 토우아웃(Toe-Out)상태로 변화하여 차량의 선회 안정성에 많은 악영향을 미치게 된다는 문제점이 있었다.However, in the trailing arm suspension as described above, there is no change in lubrication and camber during the up and down vibration of the wheel, so that the straight stability of the vehicle is very good. However, when the wheel is applied with lateral force during turning, as shown in FIG. As the suspension is subjected to the lateral force as a whole, the deformation is performed, and the wheels outside the turning are changed to the toe-out state, which has a lot of adverse effects on the turning stability of the vehicle.

즉, 상기와 같은 휠의 자세 변형은 차체와, 지지축을 연결하는데에 개재되는 탄성부시의 탄력 유연성에 의하여 이루어지게 되는데, 횡력에 대한 강성을 증가 시키기 위하여 탄성부시의 강성을 증가시키는 경우 승차감에 많은 악영향을 미치게 되는바, 종래의 트레일링 아암형 현가장치에 있어서는 승차감과 조종 안정성을 양립시킬 수 없다는 문제점이 있다.That is, the deformation of the attitude of the wheel as described above is made by the elastic flexibility of the elastic bushing interposed between the vehicle body and the support shaft, when increasing the rigidity of the elastic bush in order to increase the rigidity for the lateral force, As a result of adverse effects, the conventional trailing arm suspension device has a problem in that it is not possible to achieve both riding comfort and steering stability.

따라서 본 고안은 상기의 종래 제반 문제점을 해결하기 위하여 안출된 것으로서, 본 고안의 목적은 트레일링 아암형 현가장치의 전측부에 토우 조절용 아암을 추가 설치하여 자동차의 선회시 휠이 토우인(Toe-in)상태를 유지토록함으로써 선회성능을 향상시키고, 언더 스티어링 경향을 갖도록하여 조종 안정성을 향상시킬 수 있도록 한 자동차의 후륜 현가장치를 제공하려는 것이다.Therefore, the present invention was devised to solve the above-mentioned conventional problems, and an object of the present invention is to install an additional tow adjustment arm on the front side of the trailing arm suspension device, so that the wheel is toe-in when turning the car. The purpose of the present invention is to provide a rear suspension of a vehicle that improves turning performance by maintaining the state and improves steering stability by having an under steering tendency.

상기 목적을 실현하기 위하여 본 고안은 지지축의 양단에 트레일링 아암이 결합되고 이의 트레일링 아암의 후단에는 외측으로 휠이 설치되며, 트레일링 아암의 후측 상부에는 코일 스프링과 쇽 업소오버가 설치되어 그들의 상단부가 차체와 연결되는 트레일링 아암형 후륜 현가장치에 있어서, 상기 지지축 양측부에 토우 조절용 아암을 연결하되, 그의 선단부를 외측으로 확개되는 형태로 차체에 고정함에 특징이 있다.In order to realize the above object, the present invention has a trailing arm coupled to both ends of the support shaft, and a wheel is installed outwardly at the rear end of the trailing arm, and a coil spring and a shock absorber are installed at the rear upper portion of the trailing arm. A trailing arm type rear wheel suspension in which an upper end portion is connected to a vehicle body, wherein a tow adjustment arm is connected to both sides of the support shaft, and the front end portion thereof is fixed to the vehicle body in a form in which the tip portion thereof is extended outward.

이하, 상기의 목적을 구체적으로 실현할 수 있는 본 고안의 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention that can specifically realize the above object is as follows.

제2도 내지 제4도는 본 고안의 바람직한 실시예를 도시한 것으로서, 본 고안의 토우 조절용 아암(10)은 제3도에서와 같이 그의 양단에 스텃(12), 베어링(13), 커버(14)등을 구비하여 구성되는 볼 조인트(11)로 형성하여 그의 일측단은 지지축(1)의 양측으로 형성되는 브라켓(8)에 고정하고 타측단은 외측으로 확개되는 형태로 하여 차체(9)에 고정하였다.2 to 4 show a preferred embodiment of the present invention, the tow adjusting arm 10 of the present invention has a scoop 12, a bearing 13, a cover 14 at both ends thereof as shown in FIG. And a ball joint 11 formed of a ball joint 11, and one end thereof is fixed to a bracket 8 formed on both sides of the support shaft 1, and the other end thereof is extended outward. Fixed on.

이에 따라 본 고안의 현가장치는 종래의 현가장치에 토우 조절용 아암(10)을 추가 설치한 것으로서, 평면에서 볼 때 제3도와 같이 이루어진다.Accordingly, the suspension device of the present invention is an additional installation of the tow adjustment arm 10 in the conventional suspension device, and is made as shown in FIG. 3 in plan view.

상기와 같이 구성되는 본 고안의 현가장치에 횡력이 가해지면 지지축(1)의 양측으로 형성되는 토우 조절용 아암(10)에 의하여 종래와는 달리 휠이 토우 인으로 변화하게 된다.When the lateral force is applied to the suspension device of the present invention, which is configured as described above, the wheel is changed to toe-in, unlike the conventional one, by the tow adjustment arms 10 formed on both sides of the support shaft 1.

구체적으로는 제4도의 가상선과 같이 변화가 이루어지게 되는데, 이의 작동설명에 대한 이해를 편리하게 하기 위하여 선회 외측의 휠과 토우 조절용 아암 및 차체의 부호를 3'와 10' 및 9'로 지칭하여 설명한다.Specifically, the change is made like the imaginary line of FIG. 4, and in order to facilitate understanding of the operation description thereof, the wheels on the outside of the turning, the tow adjustment arms, and the signs of the vehicle bodies are referred to as 3 ', 10' and 9 '. Explain.

즉, 제4도에서와 같이 차량이 좌회전을 하여 화살표와 같은 횡력이 가해지는 경우에는 현가장치의 전체에 화살표 방향으로의 밀리는 힘이 작용하게 된다.That is, as shown in FIG. 4, when the vehicle turns left and a lateral force such as an arrow is applied, the pushing force in the direction of the arrow acts on the entire suspension.

그러면 지지축(1)이 양단에 탄성부시(6)를 개재시킨 브라켓(7)에 의해 차체에 고정되어 있으나, 상기 탄성부시(6)의 탄력 유연성에 의하여 후측부가 화살표 방향으로 밀리는 힘을 받게 된다.Then, the support shaft 1 is fixed to the vehicle body by the bracket 7 having the elastic bush 6 interposed therebetween, but the rear side is pushed in the direction of the arrow by the elastic flexibility of the elastic bush 6. do.

그러나 지지축(1)의 선단으로는 본 고안에 의한 토우 조절용 아암(10)(10')이 차체(9)(9')에 연결되고, 그 양 선단이 외측으로 확개되는 형태로 연결되어 있는바, 선회 내측의 토우 조절용 아암(10)은 차체(9)를 기준으로 반시계 방향으로 회전하면서 지지축(1)을 후측으로 밀어 주게되고, 그의 반대측인 선회 외측의 토우 조절용 아암(10')은 반시계 방향으로 회전하면서 지지축(1)을 전측으로 당겨주게 되므로 지지축(1)을 포함하는 현가장치 전체가 가상선과 같이 변형이 이루어지게 된다.However, the toe adjustment arms 10, 10 'according to the present invention are connected to the vehicle bodies 9, 9' as the front end of the support shaft 1, and the front ends thereof are connected in the form of extending outward. The toe adjusting arm 10 of the turning inner side pushes the support shaft 1 to the rear side while rotating in the counterclockwise direction with respect to the vehicle body 9, and the toe adjusting arm 10 'on the opposite side of the turning side opposite to the turning body. Since the support shaft 1 is pulled to the front side while rotating in the counterclockwise direction, the entire suspension including the support shaft 1 is deformed like a virtual line.

따라서, 선회 외측의 휠(3')이 토우인 상태로 변화가 이루어지게 되어 차량의 선회 특성이 언더 스티어링 경향을 나타내면서 선회 조정 안정성이 향상되는 것이다.Therefore, the change is made in the state that the wheel 3 'of the outer side of the turning is toe, so that the turning control stability of the vehicle is improved while the turning characteristic of the vehicle exhibits an under steering tendency.

또한, 상기와 같은 특성에 의하여 탄성부시(6)의 강성을 크게 하여도 조정 안정성에 손상을 입히지 않게 되므로 승차감을 높일 수 있게 된다.In addition, even if the rigidity of the elastic bush 6 is increased due to the above characteristics, it is possible to increase the riding comfort because it does not damage the adjustment stability.

상기와는 반대 방향으로 선회하는 경우에는 방향만 반대 일 뿐 동일한 작용을 하게 되므로 효과는 같다.In the case of turning in the opposite direction as described above, the effect is the same because only the opposite direction has the same effect.

이상에서와 같이 본 고안에 의하여 트레일링 아암형 현가장치의 전측부에 토우 조절용 아암을 추가 설치하여 자동차의 선회시 휠이 토우인(Toe-in)상태를 유지토록하여 선회성능을 향상시키고, 언더 스티어링 경향을 갖도록하여 조종 안정성을 향상시킬 수 있는 유용한 고안인 것이다.As described above, the tow adjustment arm is additionally installed at the front side of the trailing arm suspension device to maintain the toe-in state when the vehicle is turning, thereby improving turning performance and under steering. It is a useful design that can improve steering stability by having a tendency.

Claims (2)

양측으로 탄성부시(6)를 개재시킨 브라켓(7)에 의하여 차체에 고정되는 지지축(1)의 양단에 상하 요동이 자유롭도록 트레일링 아암(2)이 결합되고 이의 트레일링 아암(2)의 후단에는 외측으로 휘일(3)이 설치되며, 트레일링 아암(2)의 후측 상부에는 코일 스프링(4)과 쇽 업소오버(5)가 설치되어 그들의 상단부가 차체와 연결되는 자동차의 트레일링 아암형 현가장치에 있어서; 상기 지지축(1)의 양측단에는 전단부가 외측으로 확개되는 형태로 차체(9)에 각각 고정되는 토우 조절용 아암(10)을 추가 설치하여 이루어지는 자동차의 후륜 현가장치.The trailing arm 2 is coupled to both ends of the support shaft 1 fixed to the vehicle body by the bracket 7 having the elastic bush 6 interposed therebetween so as to freely swing the trailing arm 2 and the trailing arm 2 of the trailing arm 2. The rear end of the trailing wheel (3) is provided, the trailing arm (2) is provided with a coil spring (4) and a shock absorber (5) is installed on the upper upper side of the trailing arm of the car that their upper end is connected to the vehicle body In a suspension device; The rear wheel suspension of the vehicle, which is provided on both sides of the support shaft (1) by additionally installing the tow adjustment arms (10) fixed to the vehicle body (9) in a form in which the front end portion is extended to the outside. 제1항에 있어서, 토우 조절용 링크아암(10)은 그의 양단을 구성하는 볼 조인트(11)로 형성함을 특징으로 하는 자동차의 후륜 현가장치.2. The rear wheel suspension of an automobile according to claim 1, wherein the tow adjustment link arm (10) is formed of a ball joint (11) constituting both ends thereof.
KR2019910024115U 1991-12-26 1991-12-26 Rear suspension of car Expired - Lifetime KR960003495Y1 (en)

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KR2019910024115U KR960003495Y1 (en) 1991-12-26 1991-12-26 Rear suspension of car

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KR2019910024115U KR960003495Y1 (en) 1991-12-26 1991-12-26 Rear suspension of car

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KR960003495Y1 true KR960003495Y1 (en) 1996-04-24

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Publication number Priority date Publication date Assignee Title
KR20030018913A (en) * 2001-08-31 2003-03-06 현대자동차주식회사 Rear suspension system of vehicle

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