KR20110038832A - Lower arm structure - Google Patents

Lower arm structure Download PDF

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Publication number
KR20110038832A
KR20110038832A KR1020090096001A KR20090096001A KR20110038832A KR 20110038832 A KR20110038832 A KR 20110038832A KR 1020090096001 A KR1020090096001 A KR 1020090096001A KR 20090096001 A KR20090096001 A KR 20090096001A KR 20110038832 A KR20110038832 A KR 20110038832A
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KR
South Korea
Prior art keywords
lower arm
bush
fastening end
arm body
arm structure
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KR1020090096001A
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Korean (ko)
Inventor
김형주
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020090096001A priority Critical patent/KR20110038832A/en
Publication of KR20110038832A publication Critical patent/KR20110038832A/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
    • B60G7/005—Ball joints
    • 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
    • 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
    • B60G2206/013—Constructional features of suspension elements, e.g. arms, dampers, springs with embedded inserts for material reinforcement
    • 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
    • B60G2206/017—Constructional features of suspension elements, e.g. arms, dampers, springs forming an eye for the bushing
    • 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
    • B60G2206/10—Constructional features of arms
    • 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
    • B60G2206/10—Constructional features of arms
    • B60G2206/122—Constructional features of arms the arm having L-shape
    • 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
    • B60G2206/10—Constructional features of arms
    • B60G2206/16—Constructional features of arms the arm having a U profile and/or made of a plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints

Abstract

PURPOSE: A lower arm structure is provided to reduce the weight and material costs of a lower arm by simplifying the lower arm structure. CONSTITUTION: A lower arm structure comprises a lower arm body(100) and a reinforcing plate(500). The lower arm body comprises a three-point fastening end. The three-point fastening end has a ball joint fastening end(110), an A bush fastening end(120), and a G bush fastening end(130). The reinforcing plate is formed in the inner center of the lower arm body and reinforces the strength of the lower arm body.

Description

로어암 구조{LOWER ARM STRUCTURE}Lower arm structure {LOWER ARM STRUCTURE}

본 발명은 로어암 구조에 관한 것으로서, 더욱 상세하게는 로어암의 구조를 개선하여 강도를 보강함과 동시에, 경량화시킬 수 있는 로어암 구조에 관한 것이다.The present invention relates to a lower arm structure, and more particularly, to a lower arm structure that can be lightened by improving the structure of the lower arm and reinforcing strength.

일반적으로 자동차의 현가장치는, 차체의 중량을 지지함과 동시에 노면으로부터 발생되는 차륜의 상,하 진동을 완충하여 가능한 진동이 차체로 전달되지 않도록 한다.In general, the suspension of the vehicle supports the weight of the vehicle body and at the same time buffers the up and down vibrations of the wheels generated from the road surface so that possible vibration is not transmitted to the vehicle body.

이러한 현가장치는 휠을 회전 가능하게 지지하는 조향 너클에 하단이 고정되고 상단이 차체에 지지되는 쇽업소버와, 상기 조향 너클에 일단이 고정되고, 차체 하부의 서브 프레임에 적어도 2점의 타단이 고정되는 로어암을 포함한다.Such suspension has a shock absorber having a lower end fixed to a steering knuckle rotatably supporting a wheel and an upper end supported on a vehicle body, and one end fixed to the steering knuckle, and at least two other ends fixed to a subframe below the vehicle body. It includes a lower arm.

도 1은 종래기술에 따른 로어암 구조를 나타낸 평면도이고, 도 2는 도 1에 표시된 A-A선 단면도이다.1 is a plan view showing a lower arm structure according to the prior art, Figure 2 is a cross-sectional view taken along the line A-A shown in FIG.

로어암(10)은 도 1에 도시된 바와 같이, 3점 체결단부를 형성하는데, 이 로어암(10)의 3점 체결단부는 차륜쪽 조향 너틀(미도시)에 고정되는 볼 조인트(20)가 체결되는 볼조인트 체결단부(11)와, 차체의 서브 프레임(미도시)에 고정되는 A 부 시(30)가 체결되는 A 부시 체결단부(12), 및 상기 A 부시부(12)에 간격을 두고 차체의 서브 프레임에 고정되는 G 부시(40)가 체결되는 G 부시 체결단부(13)를 포함한다.The lower arm 10 forms a three-point fastening end, as shown in FIG. 1, wherein the three-point fastening end of the lower arm 10 is fixed to a wheel-side steering nut (not shown) 20. Is spaced between the A-joint end portion 11 to which the ball joint fastening end portion 11 to which the fastener is fastened, the A bush 30 fixed to the sub-frame (not shown) of the vehicle body, and the A bush part 12 are fastened. It includes a G-bush fastening end 13 is fastened to the G bush 40 is fixed to the sub-frame of the vehicle body.

여기서 상기 로어암(10)은 도 2에 도시된 바와 같이, 강도보강을 위해 볼조인트부(20), A 부시부(30) 및 G 부시부(40)를 연결하는 단부에 내측으로 수평하게 절곡되는 컬링부(14)를 추가로 형성한다.Here, the lower arm 10 is bent horizontally inward to the end connecting the ball joint portion 20, the A bush portion 30 and the G bush portion 40 for strength reinforcement, as shown in FIG. The curling portion 14 is further formed.

즉, 상기 컬링부(14)를 통해 로어암(10)에 작용하는 후향 대하중 강도를 보강할 수 있으며, 더불어 로어암(10)이 좌굴되는 것을 방지할 수 있다.That is, it is possible to reinforce the backward heavy load strength acting on the lower arm 10 through the curling portion 14, and also to prevent the lower arm 10 from buckling.

그러나 종래의 로어암(10)은 컬링부(14)를 추가로 형성함으로써 중량 및 재료비가 크게 증가하는 문제점이 있었다.However, the conventional lower arm 10 has a problem in that the weight and material cost are greatly increased by additionally forming the curling portion 14.

또한, 종래의 로어암(10)은 도 1에 표시된 'C'부분의 면적이 작기 때문에, 컬링부(14)를 형성한다고 해도 외부의 대하중 강도에 매우 취약하며, 더욱이 로어암(10) 제작시 'C'부분에서 파단되는 사례도 있어, 안정성 증대를 위해 보강이 절실히 요구되고 있는 실정이다.In addition, since the conventional lower arm 10 has a small area of the 'C' portion shown in FIG. 1, even when the curling portion 14 is formed, the lower arm 10 is very vulnerable to external heavy load strength, and furthermore, the lower arm 10 is manufactured. There is a case of breaking at the 'C' part of the city, and reinforcement is urgently needed to increase stability.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 로어암의 구조를 단순화시킴과 동시에, 보강판을 추가로 결합시킴으로써 로어암을 경량화시킬 수 있어 중량 및 재료비를 감소시킬 수 있는 로어암 구조를 제공하는데 있다.The present invention has been made to solve the above problems, the object of the present invention is to simplify the structure of the lower arm, and at the same time can further reduce the weight and material cost by combining the reinforcement plate to reduce the lower arm It is to provide a lower arm structure that can be.

상기와 같은 목적을 달성하기 위한 본 발명의 로어암 구조는 볼 조인트가 체결되는 볼 조인트 체결단부, A 부시가 체결되는 A 부시 체결단부, 및 G 부시가 체결되는 G 부시 체결단부를 포함한 3점의 체결 단부를 가지는 로어암 몸체와; 상기 로어암 몸체의 내부 중앙에 구비되어 로어암 몸체의 강도를 보강하는 보강판을 포함하는 것을 특징으로 한다.The lower arm structure of the present invention for achieving the above object is of three points including the ball joint fastening end to which the ball joint is fastened, the A bush fastening end to which the A bush is fastened, and the G bush fastening end to which the G bush is fastened. A lower arm body having a fastening end; It is characterized in that it comprises a reinforcement plate provided in the inner center of the lower arm body to reinforce the strength of the lower arm body.

상기 로어암 몸체는 '

Figure 112009061890254-PAT00001
'자 단면 형태로 이루어지며, 상기 보강판은 로어암 내부에 삽입되고, 양단이 로어암 몸체의 양측 내벽에 각각 고정되는 것을 특징으로 한다.The lower arm body is'
Figure 112009061890254-PAT00001
'It is made of a cross-sectional shape, the reinforcement plate is inserted into the lower arm, characterized in that both ends are fixed to both inner walls of the lower arm body, respectively.

상기 보강판은 상기 로어암 몸체 보다 얇은 두께를 가지는 것을 특징으로 한다.The reinforcement plate is characterized in that it has a thickness thinner than the lower arm body.

상기 보강판은 2.0t~2.6t로 이루어지는 것을 특징으로 한다.The reinforcement plate is characterized in that consisting of 2.0t ~ 2.6t.

상기 보강판은 G 부시 체결단부의 끝단까지 연장 형성되는 것을 특징으로 한다.The reinforcing plate is characterized in that it is formed extending to the end of the G bush fastening end portion.

이와 같이 본 발명은 로어암 몸체 중앙에 보강판을 추가로 포함하여 로어암 구조를 구성함으로써 로어암을 경량화시킬 수 있으며, 그에 따라 재료비와 중량을 감소시킬 수 있고, 더불어 연료비를 절감할 수 있는 효과가 있다.As described above, the present invention may further include a reinforcing plate in the center of the lower arm body to configure the lower arm structure, thereby reducing the lower arm, thereby reducing material cost and weight, and reducing fuel cost. There is.

이하, 본 발명에 따른 로어암 구조를 첨부된 도 3 및 도 4를 참조하여 상세히 설명한다.Hereinafter, the lower arm structure according to the present invention will be described in detail with reference to FIGS. 3 and 4.

본 발명의 로어암 구조는 후향 대하중 강도를 보강하기 위해 보강판을 추가로 구비하여 로어암 구조를 경량화시킴과 동시에, 중량 및 비용을 절감할 수 있는 기술이다. The lower arm structure of the present invention is provided with a reinforcement plate to reinforce the rear heavy load strength to reduce the weight of the lower arm structure and reduce the weight and cost.

즉, 본 발명의 로어암 구조는 도 3에 도시된 바와 같이, 3점의 체결 단부를 가지는 로어암 몸체(100)와, 상기 로어암 몸체(100)의 3점 체결 단부에 각각 체결되는 볼 조인트(200), A 부시(300) 및 G 부시(400)를 포함하며, 상기 로어암 몸체(100) 내부에는 로어암 몸체(100)의 후향 대하중 강도를 보강하기 위한 보강판(500)이 추가로 구비된다.That is, the lower arm structure of the present invention, as shown in Figure 3, the lower arm body having three fastening ends of the three points, the ball joint is fastened to each of the three-point fastening end of the lower arm body 100 (200), A bush 300 and G bush 400, the lower arm body 100 inside the reinforcement plate 500 for reinforcing the rear heavy load strength of the lower arm body 100 is added It is provided with.

여기서, 상기 로어암 몸체(100)는 '

Figure 112009061890254-PAT00002
'자 단면 형태로 이루어지며, 조향 너클에 고정되는 볼 조인트(200)가 체결되는 볼 조인트 체결단부(110)와, 차체 서브 프레임에 고정되는 A 부시(300)가 체결되는 A 부시 체결단부(120)와, 차체 서브 프레임에 고정되는 G 부시(400)가 체결되는 G 부시 체결단부(130)를 포함하여 'ㅅ'자 형태의 3점 체결단부를 갖는다.Here, the lower arm body 100 is'
Figure 112009061890254-PAT00002
'A-shape cross-sectional shape, the A-joint end portion 120 to which the ball joint fastening end 110 to which the ball joint 200 fixed to the steering knuckle is fastened, and the A bush 300 fixed to the vehicle subframe is fastened. ), And the G bush fastening end 130 to which the G bush 400 fixed to the vehicle subframe is fastened, has a three-point fastening end of the 's' shape.

이와 같이 '

Figure 112009061890254-PAT00003
'자 단면 형태를 가지는 로어암 구조는 후향 대하중 강도에 있어서 취약한 문제점이 있으며, 이를 보완하기 위해 로어암 몸체(100) 내부에 보강판(500)을 추가로 구비한다.like this '
Figure 112009061890254-PAT00003
'The lower arm structure having a cross-sectional shape has a weak problem in the rear load strength, and further includes a reinforcement plate 500 inside the lower arm body 100 to compensate for this.

즉, 상기 보강판(500)은 볼 조인트 체결단부(100), A 부시 체결단부(200) 및 G 부시 체결단부(300)가 연결되는 로어암 몸체(100)의 내부 중앙에 구비되고, 외측 단부가 대응하는 로어암 몸체(100)의 내벽에 각각 고정된다.That is, the reinforcement plate 500 is provided at the inner center of the lower arm body 100 to which the ball joint fastening end 100, the A bush fastening end 200, and the G bush fastening end 300 are connected, and an outer end thereof. Are respectively fixed to the inner wall of the corresponding lower arm body 100.

여기서 상기 보강판(500)은 로어암 내부 상면으로부터 이격된 상태로 로어암 내벽에 각각 고정되는 것이 바람직하며, 이를 통해 로어암과 보강판(500)이 'ㅁ'자 단면형태를 가지게 되어 강도를 더욱 증대시킬 수 있다.Here, the reinforcement plate 500 is preferably fixed to the inner wall of the lower arm in a state spaced apart from the upper surface of the lower arm, through which the lower arm and the reinforcement plate 500 have a cross-sectional shape of 'ㅁ' shape to increase the strength. It can be increased further.

또한, 상기 보강판(500)의 두께는 로어암의 두께 보다 얇은 두께로 형성하는 것이 바람직하다. 즉, 로어암 몸체(100)는 2.6t~3.6t로 형성하고, 상기 보강판(500)은 로어암 몸체(100)의 두께 보다 얇은 2.0t~2.6t로 형성한다.In addition, the thickness of the reinforcing plate 500 is preferably formed to a thickness thinner than the thickness of the lower arm. That is, the lower arm body 100 is formed of 2.6t ~ 3.6t, the reinforcement plate 500 is formed of 2.0t ~ 2.6t thinner than the thickness of the lower arm body (100).

이와 같이 보강판(500)의 두께를 로어암 몸체(100)의 두께 보다 얇게 형성함으로써 종래기술에서 강도보강을 위해 추가로 형성하는 컬링부(도 2 참조)의 중량 보다 보강판(500)의 중량이 가볍기 때문에, 중량 및 재료비를 절감할 수 있다.As such, by forming the thickness of the reinforcement plate 500 thinner than the thickness of the lower arm body 100, the weight of the reinforcement plate 500 is greater than the weight of the curling part (see FIG. 2) additionally formed for strength reinforcement in the prior art. Since it is light, weight and material cost can be saved.

한편, 상기 A 부시 체결단부(300)는 도 4에 도시된 바와 같이, 볼 조인트 체결단부(100)와 G 부시 체결단부(300) 사이의 외주면에 연결되어 형성되는데, 그 연결부의 면적, 즉 도 4에 표시된 'D'부분의 면적이 매우 작기 때문에, 취약한 강도를 가지고 있다.Meanwhile, as shown in FIG. 4, the A bush fastening end 300 is connected to the outer circumferential surface between the ball joint fastening end 100 and the G bush fastening end 300, and the area of the connection part, that is, FIG. Since the area of the 'D' part shown in 4 is very small, it has a weak strength.

본 발명은 이와 같은 상기 A 부시 체결단부(300)의 연결부위(도 4에 표시된 'D'부위)에 대한 강도를 보강하기 위해 보강판(400)의 일단을 상기 A 부시 체결단부(300) 끝단까지 연장되고 고정됨으로써 상기 A 부시 체결단부(300)의 연결부분에 대한 강도를 보강할 수 있다.The present invention is one end of the reinforcing plate 400 to reinforce the strength of the connection portion (the 'D' portion shown in Figure 4) of the A bush fastening end 300 as described above A bush fastening end 300 end By extending and fixed to it can reinforce the strength of the connection portion of the A bush fastening end 300.

도 1은 종래기술에 따른 로어암 구조를 나타낸 도면.1 is a view showing a lower arm structure according to the prior art.

도 2는 도 1에 표시된 A-A선 단면도.2 is a cross-sectional view taken along the line A-A shown in FIG.

도 3은 본 발명에 따른 로어암 구조를 나타낸 도면.3 is a view showing a lower arm structure according to the present invention.

도 4는 도 3에 표시된 B-B선 단면도.4 is a cross-sectional view taken along the line B-B shown in FIG.

* 도면의 주요 부분에 대한 부호의 설명 * Explanation of symbols on the main parts of the drawings

100: 로어암 몸체 110: 볼 조인트 체결단부100: lower arm body 110: ball joint fastening end

120: A 부시 체결단부 130: G 부시 체결단부120: A bush fastening end 130: G bush fastening end

200: 볼 조인트 300: A 부시200: ball joint 300: A bush

400: G 부시 500: 보강판400: G bush 500: gusset

Claims (6)

볼 조인트가 체결되는 볼 조인트 체결단부, A 부시가 체결되는 A 부시 체결단부, 및 G 부시가 체결되는 G 부시 체결단부를 포함한 3점의 체결 단부를 가지는 로어암 몸체와;A lower arm body having three fastening ends including a ball joint fastening end to which the ball joint is fastened, an A bush fastening end to which the A bush is fastened, and a G bush fastening end to which the G bush is fastened; 상기 로어암 몸체의 내부 중앙에 구비되어 로어암 몸체의 강도를 보강하는 보강판을 포함하는 것을 특징으로 하는 로어암 구조.The lower arm structure, characterized in that it comprises a reinforcing plate provided in the inner center of the lower arm body to reinforce the strength of the lower arm body. 청구항 1에 있어서,The method according to claim 1, 상기 로어암 몸체는 '
Figure 112009061890254-PAT00004
'자 단면 형태로 이루어지며,The lower arm body is'
Figure 112009061890254-PAT00004
'Shaped cross section, 상기 보강판은 로어암 내부에 삽입되고, 양단이 로어암 몸체의 양측 내벽에 각각 고정되는 것을 특징으로 하는 로어암 구조.The reinforcing plate is inserted into the lower arm, the lower arm structure, characterized in that both ends are fixed to both inner walls of the lower arm body, respectively. 청구항 1에 있어서,The method according to claim 1, 상기 보강판은 상기 로어암 몸체 보다 얇은 두께를 가지는 것을 특징으로 하는 로어암 구조.The reinforcing plate has a lower arm structure, characterized in that having a thickness thinner than the lower arm body. 청구항 3에 있어서,The method of claim 3, 상기 보강판은 2.0t~2.6t로 이루어지는 것을 특징으로 하는 로어암 구조.The reinforcement plate is a lower arm structure, characterized in that consisting of 2.0t ~ 2.6t. 청구항 1에 있어서, The method according to claim 1, 상기 보강판은 G 부시 체결단부의 끝단까지 연장 형성되는 것을 특징으로 하는 로어암 구조.The reinforcement plate is a lower arm structure, characterized in that formed extending to the end of the G bush fastening end. 청구항 1에 있어서, The method according to claim 1, 상기 보강판은 일단이 상기 A 부시 체결단부 끝단까지 연장되고 고정되는 것을 특징으로 하는 로어암 구조.The reinforcement plate is a lower arm structure, characterized in that one end is extended and fixed to the end of the A bush fastening end.
KR1020090096001A 2009-10-09 2009-10-09 Lower arm structure KR20110038832A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105564172A (en) * 2014-11-05 2016-05-11 福特全球技术公司 Transverse control arm with ball joint in press-fit connection
WO2017171106A1 (en) * 2016-03-28 2017-10-05 주식회사 티앤지 Lower arm for vehicle
EP3564052A4 (en) * 2016-12-27 2020-09-23 Iljin Co., Ltd. Hybrid suspension arm for vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105564172A (en) * 2014-11-05 2016-05-11 福特全球技术公司 Transverse control arm with ball joint in press-fit connection
CN105564172B (en) * 2014-11-05 2019-08-20 福特全球技术公司 The tranverse connecting rod of spheric connection with press-fit connection
WO2017171106A1 (en) * 2016-03-28 2017-10-05 주식회사 티앤지 Lower arm for vehicle
EP3564052A4 (en) * 2016-12-27 2020-09-23 Iljin Co., Ltd. Hybrid suspension arm for vehicle
US11241928B2 (en) 2016-12-27 2022-02-08 Iljin Co., Ltd. Hybrid suspension arm for vehicle

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