KR20080018542A - Trailing arm for rear wheel in vehicles - Google Patents

Trailing arm for rear wheel in vehicles Download PDF

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Publication number
KR20080018542A
KR20080018542A KR1020060080786A KR20060080786A KR20080018542A KR 20080018542 A KR20080018542 A KR 20080018542A KR 1020060080786 A KR1020060080786 A KR 1020060080786A KR 20060080786 A KR20060080786 A KR 20060080786A KR 20080018542 A KR20080018542 A KR 20080018542A
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KR
South Korea
Prior art keywords
trailing arm
vehicle
rear wheel
bushing
elastic member
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KR1020060080786A
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Korean (ko)
Inventor
함선균
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현대모비스 주식회사
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Priority to KR1020060080786A priority Critical patent/KR20080018542A/en
Publication of KR20080018542A publication Critical patent/KR20080018542A/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
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/02—Attaching arms to sprung part of vehicle
    • 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
    • B60G2206/8103—Shaping by folding or bending

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

Abstract

A trailing arm for a rear wheel of a vehicle is provided to enhance resistance of the trailing arm against transversal impact and twist force by installing an elastic member in a variable unit. A trailing arm for a rear wheel comprises a body(50) which is installed between a rear axle and a vehicle body. A mounting section is formed in one end side of the body, and the rear axle is coupled to the mounting section. A bushing(54) is installed at the other end side of the body to be coupled with the vehicle body. A variable section(56) is formed between the mounting section and the bushing so that the variable section is bent when a transversal force is applied thereto. An elastic member(70) is installed in the variable section to enhance the bending property of the variable section.

Description

차량용 후륜 트레일링 암 {TRAILING ARM FOR REAR WHEEL IN VEHICLES}TRAILING ARM FOR REAR WHEEL IN VEHICLES}

도 1은 종래 기술에 따른 차량용 후륜 트레일링 암의 장착구조가 도시된 사시도이다.1 is a perspective view showing a mounting structure of a rear wheel trailing arm for a vehicle according to the prior art.

도 2는 종래 기술에 따른 트레일링 암이 도시된 사시도이다.2 is a perspective view of a trailing arm according to the prior art.

도 3은 본 발명에 따른 차량용 후륜 트레일링 암의 장착구조가 도시된 사시도이다.3 is a perspective view showing the mounting structure of the rear wheel trailing arm for a vehicle according to the present invention.

도 4는 본 발명에 따른 트레일링 암 및 강성부재가 도시된 사시도이다.4 is a perspective view showing a trailing arm and a rigid member according to the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

50 : 본체 52 : 마운팅부50: main body 52: mounting portion

54 : 부싱 56 : 가변부54 bushing 56 variable part

60 : 리어액슬 62 : 차륜60: rear axle 62: wheel

64 : 너클 66 : 쇽업소버64: knuckle 66: shock absorber

70 : 탄성부재 72 : 지지대70: elastic member 72: support

본 발명은 차량용 후륜 트레일링 암에 관한 것으로서, 특히 트레일링 암의 횡 방향의 강성이 향상되도록 함으로써, 트레일링 암의 수명을 연장토록 하는 차량용 후륜 트레일링 암에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear wheel trailing arm for a vehicle, and more particularly to a rear wheel trailing arm for a vehicle to extend the life of the trailing arm by allowing the lateral rigidity of the trailing arm to be improved.

일반적으로 차량의 현가장치는 차축현가식과 독립현가식이 있으며, 차량의 설치위치에 따라 앞 현가장치와 뒤 현가장치 나누어지는데 뒤 현가장치는 좌우의 차륜이 1개의 차축으로 연결된 차축 현가형식을 많이 사용하고 있으나 승용차량에서는 승차감과 안전성을 높이기 위해 독립현가식의 트레일링 암형(Trailing Arm)을 주로 사용하고 있다.Generally, the suspension system of the vehicle has axle suspension and independent suspension type, and according to the installation position of the vehicle, the front suspension system and the rear suspension system are divided. The rear suspension system uses many axle suspension types in which left and right wheels are connected to one axle. However, passenger cars mainly use independent suspension trailing arms to enhance ride comfort and safety.

도 1은 종래 기술에 따른 차량용 후륜 트레일링 암의 장착구조가 도시된 사시도이고, 도 2는 종래 기술에 따른 트레일링 암이 도시된 사시도이다.1 is a perspective view showing a mounting structure of a rear wheel trailing arm for a vehicle according to the prior art, Figure 2 is a perspective view showing a trailing arm according to the prior art.

도 1 및 도 2를 참조하면, 종래 기술에 따른 차량용 후륜 트레일링 암(100)은 너클(20)과 트레일링 암(100)을 볼트로 마운팅하며, 트레일링 암(100)의 부싱(100a)을 통해 차체에 마운팅한다.1 and 2, the vehicle rear wheel trailing arm 100 according to the prior art mounts the knuckle 20 and the trailing arm 100 with bolts, and the bushing 100a of the trailing arm 100. Mount on the body via

이러한 트레일링 암(100)은 차체에 장착하도록 구비된 부싱(100a)과 횡 방향의 충격에 따라 벤딩 변형이 가능한 플레이트(100b) 그리고 리어액슬(40)에 장착할 수 있도록 된 마운팅부(100c)로 구성되어 구조가 간단하고 휠 얼라인먼트의 변화나 타이어의 마모가 적은 장점이 있으며 전륜구동 차량의 뒤 현가장치로 많이 사용된다.The trailing arm 100 is provided with a bushing 100a provided to be mounted to the vehicle body, a plate 100b capable of bending deformation according to a transverse impact, and a mounting portion 100c that can be mounted to the rear axle 40. It is composed of simple structure, less wheel alignment change and less tire wear, and it is widely used as rear suspension of front wheel drive vehicle.

그러나, 종래 기술에 따른 트레일링 암(100)은 얇고 평평한 패널로 이루어지 기 때문에 소정량 이하의 횡 방향 외력이 발생될 경우에는 벤딩 변형되었다가 복원될 수 있지만 소정량 이상의 횡 방향의 외력이나 비틀림이 발생될 경우에는 소성 변형이 발생되어 절곡되는 문제점이 있다.However, since the trailing arm 100 according to the related art is made of a thin and flat panel, when a lateral external force of a predetermined amount or less is generated, the bending arm may be deformed and restored, but a lateral external force or torsion of a predetermined amount or more may be restored. If this occurs, there is a problem that the plastic deformation is generated and bent.

본 발명은 상기한 종래 기술의 문제점을 개선하기 위하여 안출된 것으로서, 트레일링 암의 횡 방향 외력에 대한 강성을 향상시킬 수 있는 차량용 후륜 트레일링 암을 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to improve the above-mentioned problems of the prior art, and an object thereof is to provide a rear wheel trailing arm for a vehicle capable of improving the rigidity of the trailing arm against lateral external force.

상기한 과제를 해결하기 위한 본 발명에 따른 차량용 후륜 트레일링 암은 차륜이 설치되는 리어액슬과 차체 사이에 설치되는 본체, 상기 본체의 일측 단부에 형성되어 상기 리어액슬이 결합되는 마운팅부, 상기 본체의 타측 단부에 설치되어 상기 차체에 결합되는 부싱, 및 상기 마운팅부와 상기 부싱 사이에 상대적으로 두께가 작게 형성되어 소정량 이하의 횡 방향 외력에 대해 벤딩 변형이 가능한 가변부, 및 상기 가변부에 설치되어 벤딩 변형의 한계가 연장되도록 하는 탄성부재를 포함하는 것을 특징으로 한다.The rear wheel trailing arm for a vehicle according to the present invention for solving the above problems is a main body installed between a rear axle and a vehicle body in which a wheel is installed, and a mounting portion formed at one end of the main body to couple the rear axle to the main body. A bushing installed at the other end of the bushing and coupled to the vehicle body, and a variable portion having a relatively small thickness between the mounting portion and the bushing to bend and deform to a transverse external force of a predetermined amount or less, and the variable portion It is characterized in that it comprises an elastic member is installed so that the limit of bending deformation is extended.

또한, 본 발명의 탄성부재는 그 측면 형상이 'Ｃ' 모양으로 형성되고, 양측 단부에서 측 방향으로 경사지게 연장되어 상기 가변부에 장착되는 지지대를 포함하는 것을 특징으로 한다.In addition, the elastic member of the present invention is characterized in that the side shape is formed in a 'C' shape, and extending inclined in the lateral direction at both ends to include a support mounted to the variable portion.

이하, 본 발명에 따른 차량용 후륜 트레일링 암의 일 실시예를 첨부된 도면들을 참조하여 상세히 설명한다.Hereinafter, an embodiment of a rear wheel trailing arm for a vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

설명의 편의를 위해 차량용 후륜 트레일링 암을 예로 들어 설명한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다.For convenience of description, the rear wheel trailing arm for a vehicle will be described as an example. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다.In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Therefore, definitions of these terms should be made based on the contents throughout the specification.

도 3은 본 발명에 따른 차량용 후륜 트레일링 암의 장착구조가 도시된 사시도이고, 도 4는 본 발명에 따른 트레일링 암 및 강성부재가 도시된 사시도이다.3 is a perspective view showing a mounting structure of a vehicle rear wheel trailing arm according to the present invention, Figure 4 is a perspective view showing a trailing arm and a rigid member according to the present invention.

도 3 및 도 4를 참조하면, 본 발명에 따른 차량용 후륜 트레일링 암은 차륜(62)이 설치되는 리어액슬(60)과 차체(미도시) 사이에 설치되는 본체(50)와, 본체(50)의 일측 단부에 형성되어 리어액슬(60)이 결합되는 마운팅부(52)와, 본체(50)의 타측 단부에 설치되어 차체에 결합되는 부싱(54)과, 마운팅부(52)와 부싱(54) 사이에 상대적으로 두께가 작게 형성되어 소정량 이하의 횡 방향 외력에 대해 벤딩 변형이 가능한 가변부(56)와, 가변부(56)에 설치되어 벤딩 변형의 한계가 연장되도록 하는 탄성부재(70)를 포함하여 이루어진다.3 and 4, the vehicle rear wheel trailing arm according to the present invention includes a main body 50 installed between the rear axle 60 on which the wheel 62 is installed and a vehicle body (not shown), and the main body 50. Is formed at one end of the mounting portion 52 is coupled to the rear axle (60), the bushing 54 is installed at the other end of the main body 50 is coupled to the vehicle body, the mounting portion 52 and the bushing ( 54 is formed with a relatively small thickness between the variable portion 56 is capable of bending deformation against a lateral external force of a predetermined amount or less, and an elastic member installed on the variable portion 56 to extend the limit of bending deformation ( 70).

이로써, 마운팅부(52)에 리어액슬(60)을 삽입하여 고정하고, 부싱(54)을 차체에 연결하여 트레일링 암의 장착을 이루고, 차량 주행 중에 횡 방향 외력이 발생 되면 가변부(56)가 소정량 벤딩 변형되었다가 가변부(56)의 복원력 및 탄성부재(70)의 복원력에 의해 원상태로 복원되면서 횡 방향의 외력이 상쇄되도록 한다.Accordingly, the rear axle 60 is inserted into the mounting portion 52 to be fixed, and the bushing 54 is connected to the vehicle body to mount the trailing arm, and when the lateral external force is generated while the vehicle travels, the variable portion 56 is formed. After bending a predetermined amount is deformed by the restoring force of the variable portion 56 and the restoring force of the elastic member 70, the external force in the lateral direction is canceled.

여기서, 탄성부재(70)는 그 측면 형상이 'Ｃ' 모양으로 형성되고, 양측 단부에서 측 방향으로 경사지게 연장되어 가변부(56)에 장착되는 지지대(72)가 형성된다.Here, the elastic member 70 has a side shape is formed in a 'C' shape, the support 72 is formed to be mounted to the variable portion 56 is inclined in the lateral direction at both ends.

이러한 구조에 의해 벤딩 변형이 자주 발생되는 가변부(56)에 한 쌍의 지지대(72)를 용접가공에 의해 고정시키면 가변부(56)가 변형될 때에 탄성부재(70)가 인장 또는 압축되면서 탄성에너지를 응축시키고, 외력이 해제된 후에 가변부(56)의 자체 복원력과 탄성부재(70)의 복원력에 의해 가변부(56)가 원상태로 환원되면서 외력이 상쇄되도록 한다.By fixing the pair of supports 72 to the variable portion 56 where bending deformation is frequently generated by such a structure by welding, the elastic member 70 is stretched or compressed when the variable portion 56 is deformed and elastic. The energy is condensed, and after the external force is released, the variable part 56 is reduced to its original state by the self restoring force of the variable part 56 and the restoring force of the elastic member 70, thereby canceling the external force.

상기와 같이 구성된 본 발명의 일 실시예에 따른 차량 후륜 트레일링 암의 작용을 살펴보면 다음과 같다.Looking at the operation of the vehicle rear wheel trailing arm according to an embodiment of the present invention configured as described above are as follows.

먼저, 트레일링 암의 장착은 마운팅부(52)가 리어액슬(60)에 설치되는 너클(64)에 볼트 결합되어 이루어지고, 부싱(54)이 차체에 체결되므로 쇽업소버(66)에 의해 유동 가능하게 지지되는 리어액슬(60)과 차체 사이에 트레일링 암이 설치된다.First, the mounting of the trailing arm is performed by bolting the knuckle 64 to which the mounting portion 52 is installed on the rear axle 60. Since the bushing 54 is fastened to the vehicle body, the shock absorber 66 flows. A trailing arm is provided between the rear axle 60 and the vehicle body which are possibly supported.

이후에, 차량 주행 중에 종 방향의 외력이 발생되면 트레일링 암의 지지력에 의해 변형이 방지되는데, 이는 트레일링 암의 본체(50)가 상하 방향으로 직립된 모양의 패널이므로 종 방향의 외력에 대해 강성이 높기 때문이다.Subsequently, when an external force in the longitudinal direction is generated while driving the vehicle, deformation is prevented by the supporting force of the trailing arm, which is a panel having a shape in which the main body 50 of the trailing arm is erected in the vertical direction. This is because the rigidity is high.

또한, 횡 방향의 외력 또는 비틀림이 발생될 때에는 가변부(56)가 소정량 벤 딩 변형되었다가 외력이 해제된 후에 가변부(56)의 차체 복원력과 탄성부재(70)의 복원력에 의해 원상태로 환원되면서 외력에 의한 트레일링 암의 변형을 방지한다.In addition, when an external force or torsion occurs in the lateral direction, the variable portion 56 is deformed by a predetermined amount, and after the external force is released, the variable portion 56 is restored to its original state by the vehicle body restoring force of the variable portion 56 and the restoring force of the elastic member 70. Reduction prevents deformation of the trailing arm by external forces.

본 발명은 도면에 도시된 일 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible from those skilled in the art. Will understand.

또한, 차량용 후륜 트레일링 암을 예로 들어 설명하였으나, 이는 예시적인 것에 불과하며, 차량용 후륜 트레일링 암에 사용되는 트레일링 암이 아닌 다른 제품의 트레일링 암에도 본 발명의 트레일링 암이 사용될 수 있다.In addition, the vehicle rear wheel trailing arm has been described as an example, but this is merely exemplary, and the trailing arm of the present invention may be used for a trailing arm of a product other than the trailing arm used for the vehicle rear wheel trailing arm. .

따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.Therefore, the true technical protection scope of the present invention will be defined by the claims below.

상기와 같이 구성되는 본 발명의 일 실시예에 따른 차량용 후륜 트레일링 암은 벤딩 변형이 이루어지는 가변부에 탄성부재가 설치됨으로써, 벤딩 변형의 한계가 연장되므로 횡 방향의 외력이나 비틀림에 대한 저항력이 향상되어 트레일링 암의 수명이 연장되는 이점이 있다.The rear wheel trailing arm for a vehicle according to the exemplary embodiment of the present invention configured as described above is provided with an elastic member at a variable portion at which bending deformation is made, so that the limit of bending deformation is extended, thereby improving resistance to external force or torsion in the lateral direction. This has the advantage of extending the life of the trailing arm.

Claims (2)

차륜이 설치되는 리어액슬과 차체 사이에 설치되는 본체;A main body installed between the rear axle where the wheel is installed and the vehicle body; 상기 본체의 일측 단부에 형성되어 상기 리어액슬이 결합되는 마운팅부;A mounting part formed at one end of the main body to which the rear axle is coupled; 상기 본체의 타측 단부에 설치되어 상기 차체에 결합되는 부싱; 및A bushing installed at the other end of the body and coupled to the vehicle body; And 상기 마운팅부와 상기 부싱 사이에 상대적으로 두께가 작게 형성되어 소정량 이하의 횡 방향 외력에 대해 벤딩 변형이 가능한 가변부; 및A variable portion having a relatively small thickness between the mounting portion and the bushing to bend and deform to a transverse external force of a predetermined amount or less; And 상기 가변부에 설치되어 벤딩 변형의 한계가 연장되도록 하는 탄성부재를 포함하는 것을 특징으로 하는 차량용 후륜 트레일링 암.The rear wheel trailing arm for a vehicle, characterized in that it comprises an elastic member installed in the variable portion to extend the limit of bending deformation. 제 1 항에 있어서,The method of claim 1, 상기 탄성부재는 그 측면 형상이 'Ｃ' 모양으로 형성되고, 양측 단부에서 측 방향으로 경사지게 연장되어 상기 가변부에 장착되는 지지대를 포함하는 것을 특징으로 하는 차량용 후륜 트레일링 암.The elastic member is a rear wheel trailing arm for the vehicle, characterized in that the side shape is formed in a 'C' shape, and includes a support that is inclined in the lateral direction at both ends mounted on the variable portion.
KR1020060080786A 2006-08-24 2006-08-24 Trailing arm for rear wheel in vehicles KR20080018542A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170050117A (en) * 2015-10-29 2017-05-11 현대자동차주식회사 Link structure for vehicle suspension
KR20190068127A (en) * 2017-12-08 2019-06-18 현대자동차주식회사 Upper arm for multi-link type rear suspension of vehicle
CN114683791A (en) * 2022-05-06 2022-07-01 深圳市大道智创科技有限公司 Robot chassis suspension structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170050117A (en) * 2015-10-29 2017-05-11 현대자동차주식회사 Link structure for vehicle suspension
KR20190068127A (en) * 2017-12-08 2019-06-18 현대자동차주식회사 Upper arm for multi-link type rear suspension of vehicle
CN114683791A (en) * 2022-05-06 2022-07-01 深圳市大道智创科技有限公司 Robot chassis suspension structure
CN114683791B (en) * 2022-05-06 2024-01-16 深圳市大道智创科技有限公司 Robot chassis suspension structure

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