KR20040025049A - Bush mounting adapter-damper of rear suspension - Google Patents

Bush mounting adapter-damper of rear suspension Download PDF

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Publication number
KR20040025049A
KR20040025049A KR1020020056843A KR20020056843A KR20040025049A KR 20040025049 A KR20040025049 A KR 20040025049A KR 1020020056843 A KR1020020056843 A KR 1020020056843A KR 20020056843 A KR20020056843 A KR 20020056843A KR 20040025049 A KR20040025049 A KR 20040025049A
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KR
South Korea
Prior art keywords
damper
adapter
bush
spiral spring
vehicle
Prior art date
Application number
KR1020020056843A
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Korean (ko)
Inventor
김효석
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현대자동차주식회사
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Priority to KR1020020056843A priority Critical patent/KR20040025049A/en
Publication of KR20040025049A publication Critical patent/KR20040025049A/en

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Classifications

    • 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
    • B60G21/052—Mounting means therefor
    • 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
    • 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
    • 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
    • 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
    • B60G2206/81—Shaping
    • B60G2206/8102—Shaping by stamping
    • B60G2206/81022—Shaping by stamping by forging
    • 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

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

Abstract

PURPOSE: A bush mounting adapter damper for a rear suspension is provided to improve stability by restricting oversteering in cornering a vehicle with mounting the adapter damper in the bushing mounting part and by increasing tread between the tire and the road surface with absorbing vibration. CONSTITUTION: An adapter damper(12) of a bush mounting part is composed of a supporting shaft(14) inserting a stroke stopper(24) and a spiral spring(26) to an installation plate(22) mounted in a vehicle body(20) by bolting and forming a damper plate(28); a damper(16) containing the damper plate and the spiral spring of the supporting shaft and protruding a mount shaft(30); and a bush(18) mounted in an arm of a coupled torsion beam axle suspension to assemble the mount shaft of the damper. The adapter damper is connected to the bush through the mount shaft of the damper. The stability of the vehicle is improved by restricting oversteering of the rear axle in turning the vehicle. Tread between the tire and the road surface is improved by absorbing vibration and impact with the restoring force of the damper and the spiral spring in traveling on the uneven road.

Description

리어 서스펜션의 부쉬마운팅 어댑터-댐퍼{BUSH MOUNTING ADAPTER-DAMPER OF REAR SUSPENSION }BUSH MOUNTING ADAPTER-DAMPER OF REAR SUSPENSION}

본 발명은 리어 서스펜션의 부쉬 마운팅 어댑터-댐퍼에 관한 것으로, 더욱 상세하게는 커플드 토오션 빔 액슬(CTBA: COUPLED TORSION BEAM AXLE)서스펜션의 부싱 마운팅부에 어댑터 댐퍼를 신설하여 선회시 리어 액슬 스티어(STEER)를 언더스티어 경향으로 진행하고, 빨래판로드(CORRUGATION LOAD) 주행시 진동 흡수를 용이하게 하면서 노면과 타이어의 접지력을 향상시키게 한 리어 서스펜션의 부쉬 마운팅 어댑터-댐퍼에 관한 것이다.The present invention relates to a bushing mounting adapter-damper of the rear suspension, and more particularly, to the rear axle steer (or swinging) by installing an adapter damper on the bushing mounting portion of a coupled torsion beam axle (CTBA) suspension. It is a rear mounting bushing adapter-damper that improves the grip of the road and tire while facilitating the absorption of vibration during driving of the load load.

일반적으로 자동차의 현가장치는 차축과 차체를 연결하여 충격을 흡수하는 장치로서, 자동차가 주행할때에 차축이 노면에서 받는 진동이나 충격을 차체에 직접적으로 전달되지 않도록 하여 차체나 화물의 손상을 방지하고 승차감을 좋게하며 차량의 중량을 지지하여 바퀴의 진동을 흡수할 뿐 만 아니라 조향장치가 장착된 구조로 되어 있다.In general, the suspension system of a car is a device that absorbs shock by connecting the axle and the car body, and prevents damage to the car body or cargo by preventing the axle from being directly transmitted to the car body when the car is running. It improves ride comfort, supports the weight of the vehicle, absorbs the vibration of the wheel, and is equipped with a steering system.

여기서 독립 현가식은 스프링의 아래무게를 가볍게 할 수 있도록 되어 승차감을 향상시키며 차체의 바닥을 낮출 수 있도록 되어 실내공간을 확보할 수 있도록 하기 위하여 트레일링 암형 현가장치를 많이 이용하게 되는바, 통상적으로 코일 스프링이나 토션바 스프링을 매개로 하여 차축에 연결된 구조로 되어 있다.Independent suspension type can be used to lighten the weight of the spring to improve the ride comfort and to lower the bottom of the car body to use the trailing female suspension device to secure the interior space, usually the coil It is connected to the axle by the spring or the torsion bar spring.

그리고 차축프레임과 트레일링 암 사이에는 통상적으로 고무재질로 이루어진서스펜션 부시가 개재되어 상기 차축으로부터 전달되는 충격을 용이하게 흡수할 수 있도록 되어 있다.In addition, a suspension bush made of a rubber material is interposed between the axle frame and the trailing arm to easily absorb the shock transmitted from the axle.

즉, 상기한 기능을 수행하도록 된 종래의 비독립 후륜 서스펜션 중 도1의 커플드 토션 빔 액슬 서스펜션(CTBA:Coupled Torsion Beam Axle)(2)의 부시마운팅부(4)에 부시(6)를 적용하여 차축(8)으로 전달되는 충격 흡수 뿐 만 아니라, 차량의 중량을 지지하고 있다.That is, the bush 6 is applied to the bush mounting portion 4 of the coupled torsion beam axle (CTBA) of FIG. 1 among the conventional non-independent rear wheel suspensions configured to perform the above functions. To support the weight of the vehicle, as well as the shock absorption delivered to the axle (8).

또, 부시(6)의 충격흡수시 일정한 방향으로 작용하게 발생하는 스프링 특성에 의해 도2와 같이 액슬스티어에 의한 오버스티어가 발생하여 선회시 횡력 입력이나 제동시의 전,후력 입력에 대해 컴플라이언스 스티어 특성이 떨어지는 문제점이 있다.In addition, due to the spring characteristic that acts in a constant direction when absorbing the impact of the bush 6, as shown in FIG. 2, an oversteer is generated by the axle steer. There is a problem that the characteristics are poor.

이에 따라 트레일링 암부쉬의 형상 개조등을 통해 토를 제어하는 토 콘트롤 부쉬를 개발이 요구되고 있는 실정이다.Accordingly, it is required to develop a toe control bush that controls the toe by reshaping the trailing arm bush.

상기한 바와 같이 이루어지는 종래기술의 문제점을 해소하기 위하여 제안된 것으로, 본 발명의 목적은 커플드 토오션 빔 액슬(CTBA: COUPLED TORSION BEAM AXLE)서스펜션의 부싱 마운팅부에 어댑터 댐퍼를 신설하여 선회시 리어 액슬 스티어(STEER)를 언더스티어 경향으로 진행하고, 빨래판로드(CORRUGATION LOAD) 주행시 진동 흡수를 용이하게 하면서 노면과 타이어의 접지력을 향상시키게 한 리어 서스펜션의 부쉬 마운팅 어댑터-댐퍼를 제공하는데 있다.In order to solve the problems of the prior art made as described above, an object of the present invention is to pivot the rear by installing an adapter damper in the bushing mounting portion of the coupled toe beam beam axle (CTBA) suspension The axle steer is an understeer trend and provides a rear mounting bush-mounting adapter-damper that improves the grip of the road and tires while facilitating the absorption of vibrations when driving a load load.

이를 실현하기 위한 본 발명은The present invention for realizing this

차체에 볼팅되는 장착판에 스트로크 스톱퍼와 나선스프링을 삽입 개재하면서 일단에 댐퍼판을 형성한 지지축과,A support shaft having a damper plate formed at one end thereof by inserting a stroke stopper and a spiral spring into a mounting plate bolted to the vehicle body;

상기 지지축의 댐퍼판과 나선스프링 일부를 일측에 매립하고 일정 간격을 두고 타측에 마운트축을 돌출 형성한 댐퍼와,A damper that embeds a portion of the damper plate and the spiral spring of the support shaft on one side and protrudes the mount shaft on the other side at a predetermined interval;

상기 댐퍼의 마운트축이 삽입 조립되게 커플드 토오션 빔 액슬 서스펜션의 아암에 정착한 부쉬를 포함한 구성으로 이루어짐을 특징으로 하는 리어 서스펜션의 부쉬 마운팅 어댑터-댐퍼를 제공하는데 있다.To provide a bushing mounting adapter-damper of the rear suspension, characterized in that the configuration including a bush fixed to the arm of the coupled torsion beam axle suspension so that the mount shaft of the damper is inserted and assembled.

도1은 종래기술에 따른 커플드 토션 빔 액슬 서스펜션에 부시마운팅이 적용됨을 도시한 도면.1 is a view showing that the bushing is applied to the coupled torsion beam axle suspension according to the prior art.

도2는 종래기술에 따른 커플드 토션 빔 액슬 서스펜션의 오버스티어를 도시한 도면.2 illustrates an oversteer of a coupled torsion beam axle suspension according to the prior art;

도3은 본 발명에 따른 부쉬마운팅부에 적용되는 어댑터-댐퍼를 도시한 사시도.Figure 3 is a perspective view of the adapter-damper applied to the bushing mounting portion according to the present invention.

도4는 본 발명에 따른 어댑터-댐퍼를 확대 도시한 측단면도.4 is an enlarged side sectional view of the adapter-damper according to the present invention;

도5는 본 발명인 어댑터-댐퍼가 적용된 리어 서스펜션 스티어를 도시한 도면.Fig. 5 shows the rear suspension steer to which the present inventors adapter-damper is applied.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

12:어댑터-댐퍼 14:지지축12: Adapter Damper 14: Support Shaft

16:댐퍼 18:부쉬16: Damper 18: Bush

20:차체 22:장착판20: body 22: mounting plate

24;스트로크 스톱퍼 26:나선스프링24; Stroke stopper 26: Spiral spring

28:댐퍼판 30:마운트축28: damper plate 30: mount shaft

32:커플드 토오션 빔 액슬 서스펜션 34:아암32: Coupled torsion beam axle suspension 34: Arm

이하, 본 발명의 바람직한 일 실시예를 첨부한 도면에 의하여 더욱 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

도3은 본 발명에 따른 부쉬마운팅부에 적용되는 어댑터-댐퍼를 도시한 사시도이고, 도4는 본 발명에 따른 어댑터-댐퍼를 확대 도시한 측단면도이다.Figure 3 is a perspective view showing the adapter-damper applied to the bushing mounting portion according to the present invention, Figure 4 is an enlarged side cross-sectional view of the adapter-damper according to the present invention.

부쉬마운팅부의 어댑터-댐퍼(12)는 지지축(14), 댐퍼(16), 부쉬(18)를 포함한 구성으로 이루어지고 있다.The adapter-damper 12 of the bushing mounting portion has a configuration including a support shaft 14, a damper 16, and a bush 18.

상기 지지축(14)은 차체(20)에 볼팅되는 장착판(22)에 스트로크 스톱퍼(24)와 나선스프링 (26)을 삽입 개재하면서 일단에 댐퍼판(28)을 형성하여 이루어지고 있다.The support shaft 14 is formed by inserting a stroke stopper 24 and a spiral spring 26 into the mounting plate 22 bolted to the vehicle body 20 to form a damper plate 28 at one end.

상기한 스트로크 스톱퍼(24)는 나선스프링(26)과 차체간의 공간확보와 충격 및 진동을 흡수하게 지지축(14)에 삽입하고 있다.The stroke stopper 24 described above is inserted into the support shaft 14 to secure the space between the spiral spring 26 and the vehicle body and to absorb shock and vibration.

댐퍼(16)는 지지축(14)의 댐퍼판(28)과 나선스프링(26) 일부를 일측에 매립하고 일정 간격을 두고 타측에 마운트축(30)을 돌출 형성하여 이루어지고 있다.The damper 16 is formed by embedding a portion of the damper plate 28 and the spiral spring 26 of the support shaft 14 on one side and protruding the mount shaft 30 on the other side at a predetermined interval.

부시(18)는 댐퍼(16)의 마운트축(30)이 삽입 조립되게 커플드 토오션 빔 액슬 서스펜션(32)의 아암(34)에 장착하여 이루어지고 있다.The bush 18 is attached to the arm 34 of the coupled torsion beam axle suspension 32 such that the mount shaft 30 of the damper 16 is inserted and assembled.

상기한 바와 같이 이루어지는 본 발명의 작용을 도5의 어댑터-댐퍼가 적용된 커플드 토오션 빔 액슬(CTBA: COUPLED TORSION BEAM AXLE)서스펜션(32)을 통해 설명하면 커플드 토오션 빔 액슬 서스펜션(32)의 아암(34)에 마운팅된 부싱(18)을 차체(20)에 장착판(22)으로 볼팅한 어댑터-댐퍼(12)를 이용 조립 설치한다.Coupling torsion beam axle (CTBA: COUPLED TORSION BEAM AXLE) with the adapter-damper of FIG. 5 is described. The bushing 18 mounted on the arm 34 of the arm 34 is assembled by using the adapter-damper 12 bolted to the vehicle body 20 by the mounting plate 22.

어댑터-댐퍼(12)는 나선스프링(26)과 스트로크스톱퍼(24)를 개재한 지지축(14)에 형성된 댐퍼(16)의 타측 마운트축(30)을 통해 부쉬(18)와 연결 설치되고 있어서, 선회시 리어축(36) 조향이 오버스티어(O/S)를 억제하면서 언더스티어(U/S) 경향으로 유도하여 차량을 주행하게 하므로서 차량의 자세 안정에 기여하게 된다.The adapter damper 12 is connected to the bush 18 via the other mount shaft 30 of the damper 16 formed on the support shaft 14 via the spiral spring 26 and the stroke stopper 24. During steering, the rear axle 36 steers the oversteer (O / S) while inducing the understeer (U / S) tendency to drive the vehicle, thereby contributing to stabilization of the attitude of the vehicle.

특히 댐퍼(16)와 나선스프링(26)에 의해 복원력을 발생시켜 공급하므로서 빨래판 노면 주행시 진동흡수가 용이하게 이루어져 노면과 타이어의 접지력을 향상시킨다.In particular, by generating the restoring force by the damper 16 and the spiral springs 26, the vibration absorption is easily performed during the driving of the washboard road, thereby improving the traction of the road surface and the tire.

그리고 리어휠의 임팩트시에는 지지축(14)측의 나선스프링(26)에 의한 1차적인 충격흡수와 댐퍼에 의한 감쇠 작용의 발생으로 충격과 진동을 흡수하게 된다.In the impact of the rear wheel, shock and vibration are absorbed by the primary shock absorption by the spiral spring 26 on the support shaft 14 and the damping action by the damper.

상기한 본 발명은 차량의 선회시 오버스티어의 억제로 조정 안정성이 향상되는 효과가 있다.The present invention described above has the effect of improving the stability of the adjustment by suppressing the oversteer during the turning of the vehicle.

그리고 리어휠의 임팩트시 설치된 나선스프링에서 1차충격을 흡수하고, 댐퍼의 감쇄 작용이 발휘되어 충격과 진동의 흡수가 이루어지져 소음, 진동, 내구성이 향상된다.And it absorbs the primary shock from the spiral spring installed at the impact of the rear wheel, the damping effect of the damper is exhibited to absorb the shock and vibration, thereby improving the noise, vibration, and durability.

또, 차량의 차선 긴급 회피등 커플드 토오션 빔 액슬 부쉬를 보조하게 발생하는 스프링력에 의해 노면과 타이어의 접지력의 향상으로 차량의 자세를 안정되게 한다.In addition, the attitude of the vehicle is stabilized by improving the traction of the road surface and the tire by the spring force generated to assist the coupled torsion beam axle bushes such as lane emergency avoidance of the vehicle.

Claims (1)

차체에 볼팅되는 장착판에 스트로크 스톱퍼와 나선스프링을 삽입 개재하면서 일단에 댐퍼판을 형성한 지지축과,A support shaft having a damper plate formed at one end thereof by inserting a stroke stopper and a spiral spring into a mounting plate bolted to the vehicle body; 상기 지지축의 댐퍼판과 나선스프링 일부를 일측에 매립하고 일정 간격을 두고 타측에 마운트축을 돌출 형성한 댐퍼와,A damper that embeds a portion of the damper plate and the spiral spring of the support shaft on one side and protrudes the mount shaft on the other side at a predetermined interval; 상기 댐퍼의 마운트축이 삽입 조립되게 커플드 토오션 빔 액슬 서스펜션의 아암에 정착한 부쉬를 포함한 구성으로 이루어짐을 특징으로 하는 리어 서스펜션의 부쉬 마운팅 어댑터-댐퍼.And a bushing adapter-damper for the rear suspension, wherein the bushing is fixed to the arm of the coupled torsion beam axle suspension such that the mount shaft of the damper is inserted and assembled.
KR1020020056843A 2002-09-18 2002-09-18 Bush mounting adapter-damper of rear suspension KR20040025049A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0732834A (en) * 1993-07-16 1995-02-03 Toyota Motor Corp Suspension system
KR970069418A (en) * 1996-04-30 1997-11-07 김영귀 Fuel system of rear dual link type suspension of car. Protective device
KR19980061332A (en) * 1996-12-31 1998-10-07 박병재 Suspension of automobile
KR19990010480U (en) * 1997-08-29 1999-03-15 정몽규 Rear axle buffer structure of car
JP2001219722A (en) * 2000-02-09 2001-08-14 Daihatsu Motor Co Ltd Rear suspension

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0732834A (en) * 1993-07-16 1995-02-03 Toyota Motor Corp Suspension system
KR970069418A (en) * 1996-04-30 1997-11-07 김영귀 Fuel system of rear dual link type suspension of car. Protective device
KR19980061332A (en) * 1996-12-31 1998-10-07 박병재 Suspension of automobile
KR19990010480U (en) * 1997-08-29 1999-03-15 정몽규 Rear axle buffer structure of car
JP2001219722A (en) * 2000-02-09 2001-08-14 Daihatsu Motor Co Ltd Rear suspension

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