KR20040034838A - Caster angle adjusting device of macperson type suspension in vehicle - Google Patents

Caster angle adjusting device of macperson type suspension in vehicle Download PDF

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Publication number
KR20040034838A
KR20040034838A KR1020020063466A KR20020063466A KR20040034838A KR 20040034838 A KR20040034838 A KR 20040034838A KR 1020020063466 A KR1020020063466 A KR 1020020063466A KR 20020063466 A KR20020063466 A KR 20020063466A KR 20040034838 A KR20040034838 A KR 20040034838A
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KR
South Korea
Prior art keywords
caster
lower arm
vehicle
arm
adjusting
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KR1020020063466A
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Korean (ko)
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KR100461427B1 (en
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박병일
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현대자동차주식회사
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Priority to KR10-2002-0063466A priority Critical patent/KR100461427B1/en
Publication of KR20040034838A publication Critical patent/KR20040034838A/en
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Publication of KR100461427B1 publication Critical patent/KR100461427B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • 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
    • B60G2200/464—Caster angle
    • 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
    • B60G2204/41—Elastic mounts, e.g. bushings
    • 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
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8207—Joining by screwing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D17/00—Means on vehicles for adjusting camber, castor, or toe-in

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

Abstract

PURPOSE: A caster adjusting apparatus of a MacPherson suspension for a vehicle is provided to improve convenience by adjusting the caster angle independently without changing the camber with rotating the caster adjusting unit, and to increase the rigidity by connecting both ends of the lower arm. CONSTITUTION: An end of a lower arm(5) is connected to a knuckle arm installed to a wheel by a ball joint(3), and the other end of the lower arm is connected to a vehicle body through a mounting bush(5a). A caster adjusting unit(20) is installed in the lower arm, and composed of first and second movable rods(21,21') combined with the mounting bush of the lower arm and an adjusting member(22) connecting both ends of the first movable rod and the second movable rod with pulling or separating the first and second movable rods through thread-connecting. Left and right screws(21a,21a') are formed in the first and second movable rods and combined with a thread(22a) of the adjusting member.

Description

차량용 맥퍼슨 현가장치의 캐스터 조절장치{Caster angle adjusting device of macperson type suspension in vehicle}Caster angle adjusting device of macperson type suspension in vehicle

본 발명은 차량용 맥퍼슨 현가장치의 캐스터 조절장치에 관한 것으로, 보다 상세하게는 캠버의 변화없이 캐스터각 만을 독립적으로 조절할 수 있도록 된 차량용 맥퍼슨 현가장치의 캐스터 조절장치에 관한 것이다.The present invention relates to a caster control device for a vehicle McPherson suspension device, and more particularly to a caster control device for a vehicle McPherson suspension device to be able to independently adjust the caster angle without changing the camber.

일반적으로 현가장치는 차측과 차체를 연결하여 주행할 때 노면에서 받는 진동이나 충격을 차체에 직접 전달되지 않도록 하여 차체나 하물의 손상을 방지하고 승차감을 좋게 하는 장치로써, 이중 전방현가장치는 앞차축의 형식에 따라 차축현가식과 독립현가식으로분류되고, 상기 독립현가식은 전방현가장치에서 가장 널리 쓰이는 위시본형과, 리이프 스프링을 가로로 설치하여 어퍼암 또는 로어서스펜션암의 작용을 스프링이 겸하도록 된 가로놓인 리이프 스프링 형과, 후방으로 향한 1개 또는 2개의 압에 의해 바퀴를 지지하도록 된 트레일링 링크형및, 코일스프링이 설치된 스트럿을 이용하는 맥퍼슨형으로 분류된다.In general, the suspension system is a device that prevents damage to the vehicle body or loads and improves the riding comfort by not transmitting vibrations or shocks received from the road surface directly when driving by connecting the vehicle side and the vehicle body. According to the type, it is classified into axle suspension type and independent suspension type. The independent suspension type is the most widely used wishbone type in the front suspension system, and the spring is installed horizontally to act as the upper arm or the lower suspension arm. It is classified into a cross-type leaf spring type, a trailing link type adapted to support the wheel by one or two pressures facing backwards, and a McPherson type using a strut provided with a coil spring.

이중, 맥퍼슨식 현가장치는 차체에 장착되는 쇽업소버의 장착점이 높아 얼라이먼트(Alignment)가 정확히 설정되면서 또한 그의 변화도 적어 노면으로부터의 충격을 광범위하게 분산시킬 수 있는 특징이 있게 된다.Among them, the McPherson suspension system has a high mounting point of the shock absorber mounted on the vehicle body, and the alignment is set accurately, and its change is small, so that the impact from the road surface can be widely distributed.

이와 같은 맥퍼슨식 현가장치는 도1에 도시된바와 같이, 너클아암(1)의 상단에는 쇽업소버(4)가 설치되어 쇽업소버(4)의 피스톤로드는 차체에 인슐레이터로 고정되며 로워아암(5)은 너클아암(1)의 하단에 볼조인트(3)로 연결된다.As shown in Fig. 1, the McPherson suspension system has a shock absorber 4 installed at the upper end of the knuckle arm 1 so that the piston rod of the shock absorber 4 is fixed to the vehicle body by an insulator and a lower arm 5 ) Is connected to the bottom of the knuckle arm (1) by a ball joint (3).

여기서, 미 설명 부호 5'는 어퍼아암이다.Here, reference numeral 5 'is an upper arm.

한편, 전륜 현가장치는 조향조작을 위해 조향너클과 함께 킹핀 또는 볼조인트를 중심으로 좌우로 방향을 바꾸도록 되어 캠버각과 토우인, 캐스터 및 킹핀경사각의 4대요소로 갖추게 되는데, 이중 캠버각은 휠의 중심선과 노면에 대한 수직선이 이루는 각도를 말하여 휠이 외측으로 벌어진 상태를 정의 캠버라하며 직진성을 좋게하면서 킹핀오프셋을 작게해 클수록 커브주행시 선회력은 감소시키는 반면, 내측으로 기울어진 상태를 부의 캠버라 하며 커브 주행시 선회력을 증가시킨다.On the other hand, the front wheel suspension is turned left and right around the kingpin or ball joint with steering knuckles for steering operation, and is equipped with four elements of camber angle, toe-in, caster and kingpin inclination angle. The angle formed by the center line and the vertical line with respect to the road surface is defined as the camber, and the straighter the better the straightness, the smaller the kingpin offset and the lower the turning force during curve running, while the inclined inward is the negative camber. It increases the turning force when driving on curves.

또한, 캐스터란 킹핀의 중심선과 노면에 대한 수직선이 이루는 각도를 말한다. 통상 캐스터점은 타이어의 접지면보다 앞쪽에 있으며, 휠에 작용하는 구름저항은 타이어의 접지면의 중심점에 작용하므로 주행시 항시 휠을 진행하는 방향으로 향하게 하는 힘이 발생하여 휠에 복원력을 주게 된다.In addition, the caster refers to the angle formed between the centerline of the kingpin and the vertical line with respect to the road surface. Typically, the caster point is located in front of the tire's ground plane, and the rolling resistance acting on the wheel acts on the center point of the tire's ground plane, so that a force directed toward the wheel is always generated when driving, thereby giving a restoring force to the wheel.

이에 따라, 맥퍼슨 현가장치의 캠버각은 도 1에 도시된 바와 같이, 지면의 수직선(a)과 볼조인트(3)로부터 인슐레이터와 연결된 쇽업소버(4)의 피스톤로드의 종단을 연결하는 선(b)이 이루는 각(α)으로 결정되며, 캐스터각은 볼조인트(3)가 휠의 측면의 수직선과 이루는 각으로 결정된다.Accordingly, the camber angle of the McPherson suspension is a line b connecting the end of the piston rod of the shock absorber 4 connected to the insulator from the vertical line a of the ground and the ball joint 3, as shown in FIG. Is determined by the angle α, and the caster angle is determined by the angle between the ball joint 3 and the vertical line of the side of the wheel.

이와 같은 캠버와 캐스터각은 항상 최적으로 유지하기 위해 마운팅부시(5a)를 매개로 차체쪽으로 고정되는 로워아암(5)에 조절수단(10)을 장착해 그 값을 조절할 수 있는데 즉, 도 2에 도시된 바와 같이 상기 로워아암(5)의 마운팅부시(5a)에 삽입된 캠(11)에 연결된 연결단(12)을 돌리게 되면, 상기 캠(11)의 편심(D)에 따라 회전되면서 로워아암(5)이 볼조인트(3)를 회전중심으로 이동되어 캠버와 캐스터각을 조정하게 된다.In order to maintain such a camber and caster angle at all times, the adjustment means 10 may be mounted on the lower arm 5 fixed to the vehicle body via the mounting bush 5a to adjust the value. As shown, when the connecting end 12 connected to the cam 11 inserted in the mounting bush 5a of the lower arm 5 is rotated according to the eccentricity D of the cam 11, the lower arm is rotated. (5) The ball joint (3) is moved to the center of rotation to adjust the camber and caster angle.

그러나, 이와 같은 캠버와 캐스터각 조절수단(10)은 조작시 캠버와 캐스터각을 동시에 변경시켜 캠버각이나 또는 캐스터각만을 독립적으로 변경할 수 없는 단점이 있게 된다.However, such a camber and caster angle adjusting means 10 has the disadvantage that the camber angle or caster angle alone cannot be changed independently by simultaneously changing the camber and caster angle during operation.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 캐스터각 만을 독립적으로 변경함은 물론 그 조작도 간단하면서 신속하게 해 편리성을 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and an object thereof is to provide convenience by changing the caster angle independently and making the operation simple and quick.

상기와 같은 목적을 달성하기 위한 본 발명은, 차륜에 장착된 너클라암에 볼조인트를 매개로 일단이 연결되며 서로 벌어진 타단이 마운팅부시를 매개로 차체부위로 연결되는 로워아암에 캐스터조절수단이 장착되되, 이 캐스터조절수단은 로워아암의 마운팅부시에 각각 결합되는 제1·2이동로드와, 회전시 그 회전방향에 따라 제1·2이동로드를 서로 당기거나 떨어지도록 서로 나사 결합되면서 상기 제1·2이동로드의 양단을 서로 연결시키는 조절부재로 이루어진 것을 특징으로 한다.The present invention for achieving the above object, the one end is connected to the knuckle arm mounted on the wheel through the joint and the other end is a caster control means to the lower arm is connected to the vehicle body portion via the mounting bushing The caster adjusting means is mounted on the first and second moving rods respectively coupled to the mounting arm of the lower arm, and the first and second moving rods are screwed together so as to pull or drop each other according to the rotational direction thereof. Characterized in that the adjustment member for connecting both ends of the 1/2 moving rod.

도 1은 일반적인 맥퍼슨 현가장치의 구성도1 is a block diagram of a typical McPherson suspension

도 2는 도 1의 A - A 선 부분 단면도로서, 종래에 따른 캠버와 캐스터 각 조절장치의 구성도FIG. 2 is a cross-sectional view taken along a line A-A of FIG. 1 and illustrates a configuration of a camber and a caster angle adjusting device according to the related art.

도 3은 본 발명에 따른 캐스터 조절장치의 구성도3 is a block diagram of a caster adjustment apparatus according to the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 너클아암3 : 볼조인트1: knuckle arm 3: ball joint

4 : 쇽업소버5 : 로워아암4: Shock absorber 5: Lower arm

5' : 어퍼아암5a : 마운팅부시5 ': upper arm 5a: mounting bush

10 : 조절수단10: adjusting means

11 : 캠12 : 조절단11: Cam 12: control stage

20 : 캐스터조절수단21,21' : 제1·2이동로드20: Caster adjusting means 21, 21 ': first and second moving rod

21a.21a' : 왼·오른나사22 : 조절부재21a.21a ': Left-right screw 22: Adjusting member

22a : 나사22a: screw

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 캐스터 조절장치의 구성도를 도시한 것인바, 본 발명은 스프링에 감싸여진 피스톤로드가 차체에 인슐레이터로 고정되는 쇽업소버(4)가그 상단으로 장착되는 너클아암(1)의 하단에서 어퍼아암(5')과 간격을 두고 볼조인트(3)를 매개로 일단이 연결되며 타단이 차체부위로 연결되는 로워아암(5)에 캐스터조절수단(20)이 장착되되, 이 캐스터조절수단(20)은 상기 로워아암(5)의 볼조인트(3)결합부위에 대해 서로 벌어지면서 마운팅부시(5a)를 매개로 차체로 연결되는 양쪽부위를 가로질러 결합되어진다.Figure 3 shows a block diagram of the caster adjusting device according to the present invention, the present invention is a knuckle arm (1) is mounted to the top of the shock absorber (4), the piston rod wrapped in the spring is fixed to the vehicle body by an insulator At the lower end of the upper arm (5 ') is spaced apart from the ball joint (3) one end is connected via the lower arm (5) is connected to the car body portion, the caster adjusting means 20 is mounted, this caster The adjusting means 20 is coupled across both parts connected to the vehicle body via the mounting bush 5a while being spaced apart from each other with respect to the joint portion of the ball joint 3 of the lower arm 5.

즉, 상기 캐스터조절수단(20)은 로워아암(5)의 마운팅부시(5a)에 각각 결합되는 제1·2이동로드(21,21')와, 이 제1·2이동로드(21,21')의 양단을 서로 연결시키는 조절부재(22)로 이루어지게 된다.That is, the caster adjusting means 20 includes first and second moving rods 21 and 21 'coupled to the mounting bushes 5a of the lower arm 5, and the first and second moving rods 21 and 21, respectively. ') Is made of a control member 22 for connecting both ends of each other.

여기서, 상기 제1·2이동로드(21,21')와 조절부재(22)는 조절부재(22)의 회전시 그 회전방향에 따라 제1·2이동로드(21,21')를 서로 당기거나 떨어지도록 서로 나사 결합되는데 즉, 상기 조절부재(22)의 내면에 형성된 나사(22a)가 제1·2이동로드(21,21')에 각각 형성된 왼·오른나사(21a,21a')와 체결되고 이에 따라, 상기 조절부재(22)의 회전방향에 따라 제1·2이동로드(21,21')가 서로 반대방향으로 이동되어진다.Here, the first and second movable rods 21 and 21 'and the adjusting member 22 pull the first and second movable rods 21 and 21' according to their rotational direction when the adjusting member 22 is rotated. Screws 22a formed on the inner surface of the adjusting member 22 are left and right screws 21a and 21a 'formed on the first and second moving rods 21 and 21', respectively. The first and second moving rods 21 and 21 ′ are moved in opposite directions according to the rotation direction of the adjustment member 22.

이하 본 발명의 작동을 첨부된 도면을 참조로 상세히 설명한다.Hereinafter, the operation of the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 캐스터각을 조절하고자 하면 로워아암(5)의 양단에 설치된 캐스터조절수단(20)을 통해 손쉽게 조절할 수 있게 되는데 즉, 상기 캐스터조절수단(20)의 조절부재(22)를 손으로 잡고 회전 예를 들어, 시계방향으로 회전시키면 제1·2이동로드(21,21')에 각각 형성된 왼·오른나사(21a,21a')에 의해제1·2이동로드(21,21')가 서로 벌어지면서 로워아암(5)양 단을 넓혀 캐스터각을 조절하게 된다.When the caster angle is to be adjusted, the present invention can be easily adjusted through the caster adjusting means 20 installed at both ends of the lower arm 5, that is, holding the adjusting member 22 of the caster adjusting means 20 by hand. Rotation For example, when rotated clockwise, the first and second movement rods 21 and 21 'are formed by the left and right screws 21a and 21a' respectively formed in the first and second movement rods 21 and 21 '. As they open to each other, the lower arm 5 is widened to adjust the caster angle.

즉, 상기 조절부재(22)에 의해 제1·2이동로드(21,21')가 서로 벌어지면, 상기 제1·2이동로드(21,21')의 양단이 로워아암(5)을 벌리게 되고 이에 따라, 상기 로워아암(5)이 너클아암(1)에 결합된 볼조인트(3)를 중심으로 도 3에 도시된 바와 같이 초기위치에서 이동위치로 변경되어진다.That is, when the first and second moving rods 21 and 21 'are opened to each other by the adjusting member 22, both ends of the first and second moving rods 21 and 21' are opened to open the lower arm 5. Accordingly, the lower arm 5 is changed from an initial position to a moving position with respect to the ball joint 3 coupled to the knuckle arm 1 as shown in FIG. 3.

이와 같이, 상기 로워아암(5)의 양단이 벌어지면 너클아암(1)에 결합된 볼조인트(3)부위는 캐스터조절수단(20)쪽으로 어느 정도 당겨지면서 캠버각은 그대로 유지하는 반면 캐스터각만을 변화시켜 주게 된다.As such, when both ends of the lower arm 5 are opened, the ball joint portion 3 coupled to the knuckle arm 1 is partially drawn toward the caster adjusting means 20 while maintaining the camber angle while keeping the caster angle as it is. Will change.

한편, 상기 캐스터조절수단(20)의 조절부재(22)를 손으로 잡고 반 시계방향으로 회전시키면 제1·2이동로드(21,21')에 각각 형성된 왼·오른나사(21a,21a')에 의해 제1·2이동로드(21,21')가 서로 당겨지면서 로워아암(5)을 양단을 좁혀 캐스터각을 조절하게 된다.On the other hand, when holding the adjusting member 22 of the caster adjusting means 20 by hand and rotates counterclockwise, left and right screws 21a and 21a 'respectively formed on the first and second moving rods 21 and 21'. As a result, the first and second moving rods 21 and 21 'are pulled together to narrow the lower arm 5 to adjust the caster angle.

즉, 상기 제1·2이동로드(21,21')가 서로 당겨져 로워아암(5)의 양단이 좁혀지게 되면 너클아암(1)에 결합된 볼조인트(3)부위가 캐스터조절수단(20)으로부터 어느 정도 멀어지면서 캠버각은 그대로 유지하는 반면 캐스터각만을 변화시켜 주게 된다.That is, when the first and second moving rods 21 and 21 'are pulled together and both ends of the lower arm 5 are narrowed, the ball joint 3 coupled to the knuckle arm 1 is caster adjusting means 20. Some distance away from the camber angle, while maintaining the caster angle only changes.

이와 같이, 본 발명은 캐스터조절수단(20)을 간단히 회전시키는 조작만으로 로워아암(5)을 조작해 캠버의 변경없이 캐스터각만을 조정할 수 있게 되어 편리성은 물론 로워아암(5)의 강성도 함께 증가될 수 있게 된다.As described above, the present invention can operate only the lower arm 5 by simply rotating the caster adjusting means 20 to adjust only the caster angle without changing the camber, thereby increasing convenience as well as the rigidity of the lower arm 5. It becomes possible.

이상 설명한 바와 같이 본 발명에 의하면, 로워아암의 차체로 연결되는 양단을 회전시 서로 당기거나 떨어지면서 이동시키도록 나사 결합된 캐스터조절수단이 구비되어 캠버의 변경없이 캐스터각만을 조정할 수 있게 되어 편리성은 물론 로워아암의 양단을 서로 연결시켜 그 강성도 함께 증가시켜주는 효과가 있게 된다.As described above, according to the present invention, the caster adjusting means is screwed to move both ends connected to the vehicle body of the lower arm to rotate or pull each other when rotating, so that only the caster angle can be adjusted without changing the camber. Of course, both ends of the lower arm are connected to each other to increase the rigidity together.

Claims (2)

차륜에 장착된 너클라암(1)에 볼조인트(3)를 매개로 일단이 연결되며 서로 벌어진 타단이 마운팅부시(5a)를 매개로 차체부위로 연결되는 로워아암(5)에 캐스터조절수단(20)이 장착되되, 이 캐스터조절수단(20)은 로워아암(5)의 마운팅부시(5a)에 각각 결합되는 제1·2이동로드(21,21')와, 회전시 그 회전방향에 따라 제1·2이동로드(21,21')를 서로 당기거나 떨어지도록 서로 나사 결합되면서 상기 제1·2이동로드(21,21')의 양단을 서로 연결시키는 조절부재(22)로 이루어진 차량용 맥퍼슨 현가장치의 캐스터 조절장치.One end is connected to the knuckle arm (1) mounted on the wheel by means of a ball joint (3), and the other ends of each other are connected to the lower arm (5) connected to the vehicle body via the mounting bush (5a). 20) is mounted, the caster adjusting means 20 is the first and second moving rods (21, 21 ') coupled to the mounting bush (5a) of the lower arm (5), respectively, depending on the direction of rotation McPherson vehicle comprising an adjustment member 22 for screwing together the first and second moving rods 21 and 21 'to connect both ends of the first and second moving rods 21 and 21' to each other. Suspension caster adjustment. 제 1항에 있어서, 상기 조절부재(22)의 내면에 형성된 나사(22a)에 결합되는 제1·2이동로드(21,21')에는 서로 반대방향으로 이동되도록 각각 왼·오른나사(21a,21a')가 형성되는 것을 특징으로 하는 차량용 맥퍼슨 현가장치의 캐스터 조절장치.The first and second movable rods 21 and 21 'coupled to the screw 22a formed on the inner surface of the adjusting member 22 are respectively left and right screws 21a and 21a ') caster adjustment device of the vehicle McPherson suspension characterized in that it is formed.
KR10-2002-0063466A 2002-10-17 2002-10-17 Caster angle adjusting device of macperson type suspension in vehicle KR100461427B1 (en)

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JPH08282528A (en) * 1995-04-14 1996-10-29 Isuzu Motors Ltd Caster adjusting mechanism for vehicle
KR200168231Y1 (en) * 1995-12-27 2000-03-02 김태구 Parallel link
KR19990019905A (en) * 1997-08-30 1999-03-25 양재신 Caster angle adjustment structure of bus with turnbuckle
KR19990014929U (en) * 1997-10-10 1999-05-15 정몽규 Caster Angle Adjuster
KR19990065256A (en) * 1998-01-10 1999-08-05 유철진 Upper arm structure of double wishbone suspension

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