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KR101316378B1 - Suspension bush in vehicle - Google Patents

Suspension bush in vehicle Download PDF

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Publication number
KR101316378B1
KR101316378B1 KR1020070130858A KR20070130858A KR101316378B1 KR 101316378 B1 KR101316378 B1 KR 101316378B1 KR 1020070130858 A KR1020070130858 A KR 1020070130858A KR 20070130858 A KR20070130858 A KR 20070130858A KR 101316378 B1 KR101316378 B1 KR 101316378B1
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South Korea
Prior art keywords
bush
vehicle
rubber bush
suspension
air chamber
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Korean (ko)
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KR20090063480A (en
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김현수
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/04—Buffer means for limiting movement of arms
    • 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
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051—Trailing arm twist beam axles
    • 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
    • B60G2204/43—Fittings, brackets or knuckles
    • 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
    • B60G2206/012—Hollow or tubular elements
    • 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
    • B60G2206/70—Materials used in suspensions
    • B60G2206/73—Rubber; Elastomers

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

Abstract

본 발명은 차량의 현가장치의 부시에 관한 것으로, 차량이 직진 주행할 때는 CTBA 현가장치의 부시의 스프링 강성이 낮게 되어 승차감을 향상시키는 반면에 선회 주행할 때에는 스프링 강성이 높게 되어 차량의 조종 안정성을 동시에 향상시킬 수 있도록 외측 파이프에 내측 파이프가 삽입되어 이들 사이에 개재된 고무부시로 일체로 연결되고, 상기 고무부시에는 공기 유출입구를 가진 공기실이 고무부시의 고무살을 절개해서 내측을 향해 형성되어 있다.The present invention relates to a bush of a suspension of a vehicle, and when the vehicle travels straight, the spring stiffness of the bush of the CTBA suspension is lowered to improve ride comfort, while the spring stiffness is increased when turning, thereby improving the steering stability of the vehicle. The inner pipe is inserted into the outer pipe so as to be improved at the same time, and is integrally connected with the rubber bush interposed therebetween, wherein the air chamber having the air outlet is formed by cutting the rubber bush of the rubber bush toward the inside It is.

공기실, 공기 유출입구, 고무부시 Air chamber, air outlet, rubber bush

Description

차량의 현가장치의 부시{Suspension bush in vehicle}Suspension bush in vehicle

본 발명은 차량의 현가장치에 사용되는 부시 관한 것으로, 특히 부시고부의 내부에 공기실이 형성되어 부시의 스프링특성을 가변시켜 차량의 승차감과 주행 안정성을 동시에 향상시키도록 한 차량의 현가장치의 부시에 관한 것이다.The present invention relates to a bush used for a suspension of a vehicle, and more particularly, to an bush of a suspension of a vehicle designed to improve the riding comfort and driving stability of a vehicle by varying the spring characteristics of the bush by forming an air chamber inside the bush. It is about.

일반적으로 차량의 현가장치는 차체와 차축을 연결하여 주행중에 차축이 노면으로부터 받는 진동이나 충격을 차체에 직접적으로 전달되지 않도록 제어하여 차체와 화물의 손상을 방지하고 승차감을 좋게 만드는 장치로서 노면으로부터의 충격을 완화시키는 섀시스프링과, 이 섀시스프링의 자유진동을 제어하여 승차감을 좋게 하는 쇽 업소버 및, 차량의 롤링을 방지하는 스태빌라이저 등으로 구성된다.In general, the suspension system of the vehicle connects the vehicle body and the axle to prevent the axle from being transmitted directly from the road surface while driving, thereby preventing damage to the body and cargo and improving ride comfort. A chassis spring for mitigating impact, a shock absorber for controlling the free vibration of the chassis spring to improve ride comfort, a stabilizer for preventing rolling of the vehicle, and the like.

상기 현가장치는 차량의 장착부위에 따라 전륜 현가장치와 후륜 현가장치로 구분되어지고, 또 좌우의 바퀴가 1개의 차축으로 연결된 일체 차축식 앞차축을 스프링으로 차체와 연결시킨 차축 현가식과, 좌우 양바퀴에 독립적으로 작동할 수 있도록 차체에 설치되면서 스프링 하중량이 가볍고 승차감이 좋으며 접지성이나 조종안정성이 뛰어난 독립 현가식으로 구분된다.The suspension is divided into a front wheel suspension and a rear wheel suspension according to the mounting portion of the vehicle, and the axle suspension type that connects the axle-type front axle connected to the axle with the left and right wheels by one axle with the spring body, and the left and right wheels As it is installed on the car body to operate independently, it is divided into an independent suspension type that has a light spring load, good ride comfort, and excellent grounding and maneuvering stability.

한편, 최근에는 소형차의 현가장치로서 중량과 원가, 작업성 등에 우수한 CTBA(Coupled Torsion Beam Axle)형 현가장치를 주로 사용하고 있고, 이 CTBA형 현가장치를 도 1에 도시된 바와 같이 차량의 폭방향을 따라 연장된 토션빔(1)의 양단에 트레일링아암(2)이 끼워져서 용접 등의 방법으로 일체로 연결되고, 상기 트레일링아암(2)의 일단은 부시(3)를 개재하여 차체에 볼트로 체결되는 반면에 타단에는 좌우 차륜이 각각 연결된다.On the other hand, in recent years, as a suspension device for a small vehicle, a CTBA (Coupled Torsion Beam Axle) suspension system, which is excellent in weight, cost, and workability, is mainly used, and this CTBA suspension system is shown in FIG. 1 in the width direction of a vehicle. The trailing arm 2 is fitted to both ends of the torsion beam 1 extending along, and is integrally connected by welding or the like. One end of the trailing arm 2 is connected to the vehicle body via a bush 3. The left and right wheels are connected to the other end while being bolted together.

상기 부시(3)는 도 2에서 단면으로 도시한 바와 같이, 외측 파이프(3a)에 내측 파이프(3b)가 삽입되어 이들 사이에 개재된 고무부시(3c)를 매개로 일체로 연결되고, 상기 외측 파이프(3a)의 선단에는 반경방향으로 확장된 스톱퍼(3d)가 절곡되어 형성되며, 상기 트레일링아암(2)의 선단부에 형성된 원형의 연결부(2a)에 상기 외측 파이프가 압입되어 연결되며, 상기 내측 파이프를 통해 도시되지 않은 체결볼트가 삽입되어서 부시(3)를 차체 브라켓(4)에 체결하여 연결하게 된다.As shown in the cross section in FIG. 2, the bush 3 is connected to the outer pipe 3a by an inner pipe 3b and integrally connected to each other via a rubber bush 3c interposed therebetween. A radially extended stopper 3d is formed at the tip of the pipe 3a, and the outer pipe is press-fitted and connected to a circular connecting portion 2a formed at the tip of the trailing arm 2. A fastening bolt (not shown) is inserted through the inner pipe to connect the bush 3 to the body bracket 4.

도 3에는 상기 CTBA형 현가장치를 장착한 차량이 선회할 경우의 거동을 개략적으로 도시한 것인 바, 즉 차량이 예컨대 시계방향으로 선회할 경우에 차륜을 통해 횡방향 하중(Ｆ)이 가해지면, CTBA형 현가장치 전체가 차량의 횡방향으로 이동하게 되고, 이 때에 상기 부시(3)는 도 2에서 도시한 바와 같이 트레일링아암을 통해 입력된 하중에 의해 그 스톱퍼(3d)가 상기 차체 브라켓(4)에 접촉할 때까지 횡방향으로 이동하고, 이 후에 좌측 부시는 후방으로 우측 부시는 전방으로 이동하여 CTBA 현가장치 전체가 반시계방향으로 회전하게 된다.       FIG. 3 schematically shows the behavior when the vehicle equipped with the CTBA suspension is turned, that is, when the vehicle is applied, for example, in the clockwise direction, when a lateral load F is applied through the wheel. The entire CTBA suspension is moved in the transverse direction of the vehicle. At this time, as shown in FIG. 2, the bush 3 has its stopper 3d moved by the load input through the trailing arm. It moves laterally until it contacts (4), after which the left bush moves backward and the right bush moves forward so that the entire CTBA suspension rotates counterclockwise.

상기와 같이 부시가 차량의 전방 및 후방으로 움직일 때에 상기 좌측 부시는 도 4에서 단면으로 도시한 바와 같이 상기 내측 파이프를 중심으로 하여 전방의 고 무부시(3c)가 압축되는 반면에 후방의 고무부시(3c)는 인장되게 된다.When the bush moves forward and backward of the vehicle as described above, the left bush is compressed with the rubber bush 3c at the front while the rubber bush 3c at the front is compressed around the inner pipe as shown in cross section in FIG. 3c becomes tensioned.

상기와 같이 고무부시가 내측 파이프를 중심으로 전방 및 후방의 고무부시가 각각 인장 및 압축될 때에 고무부시의 스프링 강성이 낮으면 CTBA 현가장치의 회전량이 많아져 과도한 오버스티어가 발생해서 차량의 조종 안정성이 저하되는 반면에, 고무부시의 스프링 강성이 높으면 차량의 선회시에 조종 안정성은 향상되지만 차량의 직진 주행시에 상기 차륜을 통해 충격하중이 입력될 때에 그 충격을 흡수하는 성능이 저하되어 승차감을 저하시키므로, 고무부시의 스프링 특성이 특정되어 있는 한 차량의 승차감과 조종 안정성을 동시에 만족시킬 수 없게 된다.As described above, when the rubber bush is tensioned and compressed with the front and rear rubber bushes centered on the inner pipe, respectively, if the spring stiffness of the rubber bush is low, the amount of rotation of the CTBA suspension is increased, resulting in excessive oversteering and stability of the vehicle. On the other hand, when the spring stiffness of the rubber bush is high, the steering stability is improved when the vehicle is turning, but the performance of absorbing the impact when the impact load is input through the wheel during the straight driving of the vehicle is deteriorated, thereby reducing the riding comfort. As a result, as long as the spring characteristics of the rubber bush are specified, the riding comfort and the steering stability of the vehicle cannot be satisfied at the same time.

이에 본 발명은 상기한 사정을 감안하여 안출된 것으로, 차량이 직진 주행할 때는 CTBA 현가장치의 부시의 스프링 강성이 낮게 되어 승차감을 향상시키는 반면에 선회 주행할 때에는 스프링 강성이 높게 되어 차량의 조종 안정성을 동시에 향상시킬 수 있는 스프링 특성 가변형의 차량의 현가장치의 부시를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and when the vehicle travels straight, the spring stiffness of the bush of the CTBA suspension is lowered to improve ride comfort, while the stiffness of the spring is high when turning, resulting in a high steering stability. It is an object of the present invention to provide a bush of the suspension of the vehicle of the variable spring characteristics that can be improved at the same time.

상기와 같은 목적을 달성하기 위한 본 발명은, 외측 파이프에 내측 파이프가 삽입되어 이들 사이에 개재된 고무부시로 일체로 연결되고, 상기 고무부시에는 공기 유출입구를 가진 공기실이 고무부시의 고무살을 절개해서 내측을 향해 형성되어 있다.The present invention for achieving the above object, the inner pipe is inserted into the outer pipe is integrally connected to the rubber bush interposed therebetween, the rubber bush is an air chamber having an air outlet in the rubber bush The incision is formed toward the inner side.

본 발명에 따른 차량의 현가장치의 부시에 의하면, 내측 파이프와 외측 파이프를 일체로 연결하는 고무부시에 공기실이 형성되어, 차량의 직진 주행시에는 공기실의 공기가 외부로 유출되면서 고무부시의 스프링 강성이 약화되어 차량의 승차감을 향상시키는 반면에 차량의 선회시에는 상기 공기실의 입구가 차체 브라켓에 의해 밀봉되어져 공기실 내부의 공기가 고무부시의 전후방향으로의 변형을 억제해서 고무부시의 스프링 강성을 증대시켜 차량의 선회 주행 안정성을 향상시키는 등의 효과가 있다. According to the bush of the suspension device of the vehicle according to the present invention, the air chamber is formed in the rubber bush which integrally connects the inner pipe and the outer pipe, and the spring of the rubber bush while the air in the air chamber flows out during the straight running of the vehicle. While the rigidity is weakened to improve the ride comfort of the vehicle, the inlet of the air chamber is sealed by the body bracket during the turning of the vehicle so that the air inside the air chamber can be prevented from deforming in the front and rear directions of the rubber bush, There is an effect of increasing the rigidity to improve the turning running stability of the vehicle.

이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the accompanying drawings.

도 5에는 본 발명에 따른 부시가 차량의 직진 주행시의 거동 상태가 단면도 및 정면도로 도시되어 있는 바, 외측 파이프(13a)에 내측 파이프(13b)가 삽입되어 이들 사이에 개재된 고무부시(13c)를 매개로 일체로 연결되고, 상기 외측 파이프(13a)의 선단에는 반경방향으로 확장된 스톱퍼(13d)가 절곡되어 형성되며, 상기 고무부시(13c)에는 고무부시(13c)의 고무살을 절개해서 내측으로 향하는 공기실(13e)이 형성되고, 상기 공기실(13e)은 상기 내측 파이프를 중심으로 상하로 혹은 전후로 대칭되어 2개로 형성되며, 상기 각 공기실의 공기 유출입구(13f)는 차체 브라켓(14)과 인접하도록 형성되어 있다.5 is a cross-sectional view and a front view showing the behavior of the bush according to the present invention when the vehicle travels straight, the inner bush 13c is inserted into the outer pipe 13a, and the rubber bush 13c interposed therebetween. It is integrally connected via a medium, and a stopper 13d extending radially is formed at the tip of the outer pipe 13a, and the rubber bush of the rubber bush 13c is cut in the rubber bush 13c. An air chamber 13e facing inward is formed, and the air chamber 13e is symmetrically formed up and down or back and forth around the inner pipe, and the air outlets 13f of the respective air chambers are body brackets. It is formed adjacent to (14).

이에 따라 CTBA 현가장치의 트레일링아암의 선단부에 형성된 원형의 연결부에 상기 외측 파이프가 압입되어 연결된 상태에서 상기 내측 파이프를 통해 도시되 지 않은 체결볼트가 삽입되어서 부시(13)를 차체 브라켓(4)에 체결하여 연결하게 된다.Accordingly, a fastening bolt (not shown) is inserted through the inner pipe in the state where the outer pipe is press-fitted to the circular connection portion formed at the distal end of the trailing arm of the CTBA suspension system, thereby inserting the bush 13 into the body bracket 4. It is connected to the fastener.

상기와 같이 고무부시(13d)에 공기실이 형성된 상태에서 차량이 직진 주행할 경우에 상기 고무부시가 차륜을 통해 전후 방향으로의 하중을 받게 되면, 상기 고무부시가 압축 및 인장되게 되는 데, 이 때에 상기 공기실의 유출입구는 개방되어 있으므로, 공기실 내부의 공기가 자유로이 유출입하고, 고무부시의 스프링 강성은 공기실만큼의 고무살이 절개되어 없는 만큼 낮아져서 차량의 승차감을 향상시키게 된다.When the rubber bush is subjected to the load in the front-rear direction through the wheel when the vehicle travels straight in the air chamber formed in the rubber bush 13d as described above, the rubber bush is compressed and tensioned. At this time, since the outlet of the air chamber is open, the air inside the air chamber is free to flow in and out, and the spring stiffness of the rubber bush is lowered so that the rubber flesh as the air chamber is not cut out, thereby improving the riding comfort of the vehicle.

한편 차량이 선회 주행을 할 차륜을 통해 횡방향 하중이 가해지면, CTBA형 현가장치 전체가 차량의 횡방향으로 이동하게 되고, 이 때에 상기 부시(13)는 도 6에서 도시한 바와 같이 트레일링아암을 통해 입력된 하중에 의해 그 스톱퍼(13d)가 상기 차체 브라켓(14)에 접촉할 때까지 횡방향으로 이동하고, 이 후에 좌측 부시는 후방으로 우측 부시는 전방으로 이동하여 CTBA 현가장치 전체가 반시계방향으로 회전하게 된다.On the other hand, when the lateral load is applied through the wheel on which the vehicle will turn, the entire CTBA suspension is moved in the lateral direction of the vehicle. At this time, the bushing 13 has a trailing arm as shown in FIG. The stopper 13d moves in the lateral direction by the load inputted through the body bracket 14, after which the left bush moves rearward and the right bush moves forward, so that the entire CTBA suspension system is cut in half. Rotate clockwise.

상기 부시의 스톱퍼(13d)가 차체 브라켓 쪽으로 이동하면 고무부시에 형성된 공기실의 유출입구(13f)가 차체 브라켓에 의해 막혀지게 되고, 공기실 내부에 있는 공기는 고무부시가 압축될 때에 고무부시의 압축 변형을 억제해서 고무부시의 스프링 강성을 높여주게 되므로, 차량의 선회 주행시에 고무부시의 스프링 강성이 증대되면서 고무부시의 압축양이 줄어들 뿐만 아니라 CTBA 현가장치의 거동도 저감되어 차량의 조종 안정성을 향상시키게 되는 것이다.When the stopper 13d of the bush moves toward the vehicle body bracket, the outlet inlet 13f of the air chamber formed in the rubber bush is blocked by the vehicle body bracket, and the air inside the air chamber is removed from the rubber bush when the rubber bush is compressed. The spring stiffness of the rubber bush is increased by suppressing the compression deformation, so that the spring stiffness of the rubber bush increases during turning of the vehicle. It will be improved.

도 1은 종래 기술에 따른 부시를 장착한 CTBA형 현가장치의 평면도,1 is a plan view of a CTBA-type suspension equipped with a bush according to the prior art,

도 2는 종래 기술에 따른 부시가 장착된 상태에서 선회 주행시의 부시의 거동을 설명하는 단면도,2 is a cross-sectional view illustrating the behavior of the bush during turning travel in the state where the bush according to the prior art is mounted;

도 3은 종래 기술에 따른 부시를 장착한 CTBA형 현가장치의 선회 주행시의 거동을 설명하는 개략도,3 is a schematic diagram illustrating the behavior during turning of the CTBA-type suspension equipped with a bush according to the prior art;

도 4는 종래 기술에 따른 부시가 장착된 상태에서 선회 주행시의 부시의 거동을 설명하는 단면도,4 is a cross-sectional view illustrating the behavior of the bush during turning driving in the state where the bush according to the prior art is mounted;

도 5는 본 발명에 따른 부시의 직진 주행시의 거동을 설명하는 단면도,5 is a cross-sectional view illustrating the behavior of the bush in the straight running, according to the present invention;

도 6은 본 발명에 따른 부시의 신회 주행시의 거동을 설명하는 단면도이다.6 is a cross-sectional view illustrating the behavior of the bush in the new run according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 >Description of the Related Art

13-부시 13a-외측 파이프13-Bush 13a-Outer Pipe

13b-내측 파이프 13c-고무부시13b-inner pipe 13c-rubber bush

13d-스톱퍼 13e-공기실13d stopper 13e air chamber

13f-공기 유출입구 14-차체 브라켓13f-Air Outlet 14-Body Bracket

Claims (3)

외측 파이프(13a)에 내측 파이프(13b)가 삽입되어 이들 사이에 개재된 고무부시(13c)로 일체로 연결되고, 상기 고무부시(13c)에는 공기 유출입구(13f)를 가진 공기실(13e)이 고무부시의 고무살을 절개해서 내측을 향해 형성되고,An inner pipe 13b is inserted into the outer pipe 13a and integrally connected to the rubber bush 13c interposed therebetween, and the rubber bush 13c has an air chamber 13e having an air outlet 13f. This rubber bush of the rubber bush is cut out and formed toward the inside, 상기 외측파이프(13a)에는 CTBA형 현가장치의 트레일링아암이 끼워져 상기 내측 파이프를 통해 삽입되는 체결볼트로 차체 브라켓(14)에 연결되고, 상기 외측 파이프의 선단부에는 상기 차체 브라켓(14)에 닿아서 부시의 거동을 제한하는 스톱퍼(13d)가 형성되며,A trailing arm of a CTBA-type suspension is fitted to the outer pipe 13a and connected to the body bracket 14 by a fastening bolt inserted through the inner pipe, and the front end of the outer pipe contacts the body bracket 14. A stopper 13d is formed to limit the behavior of the sub bush, 상기 스톱퍼(13d)가 상기 차체 브라켓에 닿으면 상기 공기 유출입구가 차체 브라켓에 의해 밀폐되는 것을 특징으로 하는 차량의 현가장치의 부시.And the air outlet is closed by the vehicle body bracket when the stopper (13d) contacts the vehicle body bracket. 청구항 1에 있어서, 상기 공기실(13e)이 상기 내측 파이프를 중심으로 상하 혹은 전후로 대칭되게 형성된 것을 특징으로 하는 차량의 현가장치의 부시.2. The bush of a vehicle suspension according to claim 1, wherein said air chamber (13e) is formed symmetrically up and down or back and forth with respect to said inner pipe. 삭제delete
KR1020070130858A 2007-12-14 2007-12-14 Suspension bush in vehicle Active KR101316378B1 (en)

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CN102689572B (en) * 2012-06-11 2015-04-01 宁波拓普集团股份有限公司 Bush for automobile
KR101484195B1 (en) * 2012-12-31 2015-01-19 현대자동차 주식회사 Energy regeneration device of suspension system for vehicle
CN216374094U (en) * 2021-11-26 2022-04-26 宁德时代新能源科技股份有限公司 Bushing assembly, control arm and vehicle

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KR20030006340A (en) * 2001-07-12 2003-01-23 현대자동차주식회사 a mounting bush of trailing arm for vehicles
KR20050051251A (en) * 2003-11-27 2005-06-01 현대자동차주식회사 Bushing of suspension system in automobile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030006340A (en) * 2001-07-12 2003-01-23 현대자동차주식회사 a mounting bush of trailing arm for vehicles
KR20050051251A (en) * 2003-11-27 2005-06-01 현대자동차주식회사 Bushing of suspension system in automobile

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