KR19980043830A - Installation structure of front lower arm for McPherson type suspension of passenger car - Google Patents

Installation structure of front lower arm for McPherson type suspension of passenger car Download PDF

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Publication number
KR19980043830A
KR19980043830A KR1019960061809A KR19960061809A KR19980043830A KR 19980043830 A KR19980043830 A KR 19980043830A KR 1019960061809 A KR1019960061809 A KR 1019960061809A KR 19960061809 A KR19960061809 A KR 19960061809A KR 19980043830 A KR19980043830 A KR 19980043830A
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KR
South Korea
Prior art keywords
lower arm
front lower
fixed
hinge portion
passenger car
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KR1019960061809A
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Korean (ko)
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KR100192403B1 (en
Inventor
정은화
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박병재
현대자동차 주식회사
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Priority to KR1019960061809A priority Critical patent/KR100192403B1/en
Publication of KR19980043830A publication Critical patent/KR19980043830A/en
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Publication of KR100192403B1 publication Critical patent/KR100192403B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/006—Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor
    • 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
    • B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
    • 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
    • B60G2206/12—Constructional features of arms with two attachment points on the sprung part of the vehicle
    • 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)
  • Body Structure For Vehicles (AREA)

Abstract

본 발명은 승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조에 관한 것으로, 차체프론트플로어(100)와 소정위치에 설치된 좌우측의 프론트사이드멤버(200)를 가로질러 고정된 소정형상의 프론트크로스멤버(300)에 프론트로어아암(400)의 제1힌지부(410)가 고정되고, 상기 차체프론트플로어(100)의 하부에 설치된 프론트센타멤버(110)에 프론트로어아암(400)의 제2힌지부(420)가 브라켓트(500)를 매개로 고정되고, 이 프론트로어아암(400)의 남은 제3힌지부(430)에는 타이어 등으로 이루어진 휠(600)이 설치되어, 구조가 간단하여 경량화가 가능할 뿐만 아니라 설계자유도도 우수함은 물론, 충돌시 프론트로어아암이 차체플로어프레임의 안쪽으로 침입하는 경우가 없게 되어 충돌안정성도 향상시킬 수 있도록 된 것이다.The present invention relates to an installation structure of a front wheel arm for McPherson suspension of a passenger car, and has a front cross member of a predetermined shape fixed across the body front floor 100 and the front side members 200 on the left and right sides installed at a predetermined position. The first hinge part 410 of the front lower arm 400 is fixed to the second hinge part 410 of the front lower arm 400 at the front center member 110 installed below the body front floor 100. 420 is fixed via the bracket 500, and the remaining third hinge portion 430 of the front lower arm 400 is provided with a wheel 600 made of a tire, etc., the structure is simple and lightweight In addition, the design freedom is excellent, and the front lower arm does not intrude into the body floor frame during a collision, thereby improving collision stability.

Description

승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조Installation structure of front lower arm for McPherson type suspension of passenger car

본 발명은 승용차의 맥퍼슨형 서스펜션용 프론트로어암의 설치구조에 관한 것으로, 특히 구조가 간단하여 경량화가 가능할 뿐만 아니라 설계자유도도 우수함은 물론, 충돌시 프론트로어아암이 차체플로어프레임의 안쪽으로 침입하는 경우가 없게 되어 충돌안정성도 향상시킬 수 있도록 된 승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조에 관한 것이다.The present invention relates to the installation structure of the front wheel arm for McPherson type suspension of a passenger car. In particular, the structure is simple and lightweight, and the design freedom is excellent, and the front lower arm intrudes into the body floor frame during a collision. The present invention relates to an installation structure of the front lower arm for the McPherson type suspension of a passenger car, which can improve the collision stability.

일반적으로 차량의 서스펜션은 차축과 차체를 연결하여 주행중에 차축이 노면으로부터 받는 진동이나 충격을 차체에 직접적으로 전달되지 않도록 제어하여 차체와 화물의 손상을 방지하고 승차감을 좋게 만드는 장치로서 노면으로부터 충격을 완화시키는 섀시 스프링과, 섀시 스프링의 자유진동을 제어하여 승차감을 좋게 하는 쇽 업소버 및 차량의 롤링을 방지하는 스태빌라이저 등으로 구성된다.In general, the suspension of the vehicle is connected to the axle and the body so that the vibration or shock received from the road surface is not directly transmitted to the body while driving, thereby preventing damage to the body and cargo and improving ride comfort. And a chassis spring for mitigating, a shock absorber for controlling the free vibration of the chassis spring to improve ride comfort, and a stabilizer for preventing rolling of the vehicle.

그리고 맥퍼슨형(스트러트식) 서스펜션에서 크로스멤버가 없는 상태로 프론트로어아암이 설치된 구조는 도 1에 도시된 바와 같이, 차체플로어프레임(10)의 전방부 좌우측에 프론트사이드멤버(20)가 고정됨과 더불어 상기 차체플로어프레임(10)의 전방하부 쪽으로 돌출된 돌출부(11)에 용접되는 브라켓트(30)를 매개로 프론트사이드멤버(20)의 길이방향중심이 지지되는 한편, 상기 돌출부(11)의 하부면에 서스펜션을 구성하는 프론트로어아암(40)의 2곳의 힌지부가 고정된 구조로 되어 있다.And the structure of the front lower arm in the state without the cross member in the McPherson type (strut type) suspension, as shown in Figure 1, the front side member 20 is fixed to the front left and right sides of the body floor frame 10 and In addition, the longitudinal center of the front side member 20 is supported by the bracket 30 welded to the protrusion 11 protruding toward the front lower portion of the body floor frame 10, while the lower portion of the protrusion 11 is supported. The two hinge parts of the front lower arm 40 which comprise a suspension on the surface are fixed.

또한 맥퍼슨형(스트러트식) 서스펜션에서 크로스멤버가 있는 상태에서 프론트로어아암이 설치된 구조는 도 2에 도시된 바와 같이, 차체플로어프레임(10)의 전방부 좌우측에 프론트사이드멤버(20)가 고정됨과 더불어, 상기 차체플로어프레임(10)의 전방하부와 프론트사이드멤버(20)의 길이방향중심이 지지되도록 전방크로스멤버(50)가 설치되는 한편, 상기 프론트사이드멤버(20)의 소정위치와 전방크로스멤버(50)의 소정위치에 브라켓트(60)가 설치됨과 더불어, 상기 전방크로스멤버(50)의 하부면 앞뒤쪽에 프론트로어아암(40)의 2곳의 힌지부가 고정되어 있다.In addition, the structure of the front lower arm is installed in the state of the cross member in the McPherson type (strut type) suspension, as shown in Figure 2, the front side member 20 is fixed to the front left and right sides of the body floor frame 10 and In addition, the front cross member 50 is installed so that the front lower part of the body floor frame 10 and the longitudinal center of the front side member 20 are supported, while a predetermined position and front cross of the front side member 20 are supported. The bracket 60 is installed at a predetermined position of the member 50, and two hinge parts of the front lower arm 40 are fixed to the front and rear of the lower surface of the front cross member 50.

그러나 전방크로스멤버가 없는 상태로 프론트로어아암(40)을 설치하는 구조는, 차축으로부터 충격이 전달되어 프론트로어아암(40)에도 전달되면, 이때, 프론트로어아암(40)에 전달된 충돌충격이 상기 차체플로어프레임(10)에 직접전달되어 차체플로어프레임(10)이 변형되어 승객의 인명피해를 초래하는 결점이 있었다.However, when the front lower arm 40 is installed without the front cross member, the shock is transmitted from the axle to the front lower arm 40, and at this time, the impact shock transmitted to the front lower arm 40 The body floor frame 10 is directly transmitted to the body floor frame 10, so that the body floor frame 10 may be deformed, resulting in damage to passengers.

또한, 프론트크로스멤버(50)에 프론트로어아암이 설치되는 구조는, 상기 전방크로스멤버(50)의 제작시 디프드로잉에 의한 성형과 많은 용접등으로 인해 제조 및 용접불량이 많이 발생되어 조립성과 생산성이 나쁘고, 내구성과 충돌특성이 나쁜결점이 있었다.In addition, the structure in which the front lower arm is installed in the front cross member 50 is manufactured and welded poorly due to the formation by the deep drawing and a lot of welding during the manufacturing of the front cross member 50. This was bad, and had the disadvantage of poor durability and crash characteristics.

이에 본 발명은 상기와 같은 결점을 해결하기 위해 안출된 것으로, 프론트크로스멤버의 하부에 프론트로어아암의 1힌지부이 고정됨과 더불어 차체 플로어하단의 센터멤버에 프론트로어아암의 다른 1힌지부이 소정형상의 브라켓트를 매개로 설치되어, 구조가 간단하여 경량화가 가능할 뿐만 아니라 설계자유도도 우수함은 물론, 충돌시 프론트로어아암이 차체플로어프레임의 안쪽으로 침입하는 경우가 없게 되어 충돌안정성도 향상시킬 수 있도록 된 승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-described drawbacks, and one hinge portion of the front lower arm is fixed to the lower portion of the front cross member, and the other one hinge portion of the front lower arm is fixed to the center member of the lower body floor. Passenger cars that are installed through brackets, which are simple in structure and light in weight, have excellent design freedom, and do not allow the front lower arm to intrude into the body floor frame in the event of a collision. The purpose is to provide an installation structure of the front lower arm for the McPherson type suspension.

도 1은 맥퍼슨형 서스펜션에서 크로스멤버가 없는 상태의 개략적인 설명도,1 is a schematic explanatory view of a state without a cross member in the McPherson suspension;

도 2는 맥퍼슨형 서스펜션에서 크로스멤버가 없는 상태의 개략적인 설명도,2 is a schematic explanatory diagram of a state without a cross member in the McPherson suspension;

도 3은 본 발명에 따른 프론트로어아암의 사시도,3 is a perspective view of the front lower arm according to the present invention;

도 4는 본 발명에 따라 프론트로어아암이 차체측에 설치되는 부위를 나타내는 상세사시도,4 is a detailed perspective view showing a portion where the front lower arm is installed on the vehicle body side according to the present invention;

도 5는 본 발명에 따른 프론트로어아암이 설치된 상태를 차체의 하부에서 바라본 저면도,5 is a bottom view of the front lower body of the present invention, in which the front lower arm is installed;

도 6은 도 5의 A방향에서 바라본 정면도,6 is a front view as seen from the direction A of FIG.

도 7은 도 5의 B방향에서 바라본 측면도,FIG. 7 is a side view seen from the direction B of FIG. 5;

도 8은 본 발명에 따른 프론트로어아암이 설치된 상태에서 승용차의 충돌시에 발생되는 상황을 설명하는 개략도이다.8 is a schematic diagram illustrating a situation that occurs when a passenger car collides with a front lower arm installed in accordance with the present invention.

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

100-차체프론트플로어200-프론트사이드멤버100-Body Front Floor 200-Front Side Member

300-프론트크로스멤버310-고정부300-front crossmember 310-fixed

400-프론트로어아암410-제1힌지부400-front tro arm 410-first hinge

420-제2힌지부430-제3힌지부420-Second Hinge 430-Third Hinge

500-브라켓트510-원형밀착부500-bracket 510-round contact

520-차체고정부530-구멍520-Hullwork 530-hole

600-휠600-wheel

상기한 바의 목적을 달성하기 위한 본 발명은, 차체프론트플로어와 소정위치에 설치된 좌우측의 프론트사이드멤버를 가로질러 고정된 소정형상의 프론트크로스멤버에 프론트로어아암의 제1힌지부가 고정되고, 상기 차체프론트플로어의 하부에 설치된 프론트센타멤버에 프론트로어아암의 제2힌지부가 브라켓트를 매개로 고정되고, 이 프론트로어아암의 남은 제3힌지부에는 타이어 등으로 이루어진 휠이 설치된 구조로 되어 있다.The present invention for achieving the above object, the first hinge portion of the front lower arm is fixed to the front cross member of a predetermined shape fixed across the front body and the left and right front side members installed at a predetermined position, the The second hinge portion of the front lower arm is fixed to the front center member installed at the lower portion of the body front floor via a bracket, and a wheel made of a tire or the like is installed at the remaining third hinge portion of the front lower arm.

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

도 3은 본 발명에 따른 프론트로어암의 사시도이고, 도 4는 본 발명에 따라 프론트로어아암이 차체측에 설치되는 부위를 나타내는 상세사시도이며, 도 5는 본 발명에 따른 프론트로어아암이 설치된 상태를 차체의 하부에서 바라본 저면도이고, 도 6은 도 5의 A방향에서 바라본 정면도이며, 도 7은 도 5의 B방향에서 바라본 측면도로서, 본 발명에 따른 프론트로어아암의 설치구조는, 차체프론트플로어(100)와 소정위치에 설치된 좌우측의 프론트사이드멤버(200)를 가로질러 고정된 소정형상의 프론트크로스멤버(300)에 프론트로어아암(400)의 제1힌지부(410)가 고정되고, 상기 차체프론트플로어(100)의 하부에 설치된 프론트센타멤버(110)에 프론트로어아암(400)의 제2힌지부(420)가 브라켓트(500)를 매개로 고정되고, 이 프론트로어아암(400)의 남은 제3힌지부(430)에는 타이어 등으로 이루어진 휠(wheel; 600)이 설치된 구조로 되어 있다.Figure 3 is a perspective view of the front lower arm according to the present invention, Figure 4 is a detailed perspective view showing a portion where the front lower arm is installed on the vehicle body side according to the present invention, Figure 5 is a state in which the front lower arm according to the present invention is installed 6 is a bottom view as seen from the lower part of the vehicle body, FIG. 6 is a front view as seen from the direction A of FIG. 5, and FIG. 7 is a side view as seen from the direction B of FIG. 5, wherein the installation structure of the front lower arm according to the present invention is the body front. The first hinge part 410 of the front lower arm 400 is fixed to the front cross member 300 of a predetermined shape fixed across the front 100 and the left and right front side members 200 installed at a predetermined position, The second hinge portion 420 of the front lower arm 400 is fixed to the front center member 110 installed at the lower portion of the body front floor 100 via the bracket 500, and the front lower arm 400 The remaining third hinge portion 430 of the Ear consisting of such wheel; is a (wheel 600) is installed structure.

여기서 상기 프론트크로스멤버(300)는, 상기 프론트사이드멤버(200)의 하부에 보울트 등의 체결수단에 의해 체결됨과 더불어 프론트로어아암(400)의 제1힌지부(410)가 보울트 등의 체결수단에 의해 고정되도록 양단이 U자형상의 고정부(310)를 갖추고 있다.Here, the front cross member 300 is fastened to the lower portion of the front side member 200 by a fastening means such as a bolt, and the first hinge part 410 of the front lower arm 400 is a fastening means such as a bolt. Both ends are provided with the U-shaped fixing part 310 so that it may be fixed by.

그리고 상기 브라켓트(500)는, 상기 프론트로어아암(400)의 제2힌지부(420)를 감싸는 형태로 성형된 원형밀착부(510)와, 이 원형밀착부(510)에서 일체로 연장되어 양단이 상기 프론트센타멤버(110)에 보울트와 너트 등의 체결수단으로 밀착되도록 구멍(530)이 성형된 차체고정부(520)를 갖춘 구조로 되어 있다.The bracket 500 includes a circular contact portion 510 formed in a shape surrounding the second hinge portion 420 of the front lower arm 400, and integrally extends from both ends of the circular contact portion 510. The front center member 110 has a structure having a vehicle body fixing part 520 in which a hole 530 is formed to be in close contact with a fastening means such as a bolt and a nut.

따라서 상기 구동수단(600)으로부터 충격이 전달되어 프론트로어아암(400)에도전달되면, 이때 프론트로어아암(400)에 전달된 충돌충격이 상기 프론트사이드멤버(200)와 프론트크로스멤버(300)에 의해 흡수되게 되므로 내구성과 충돌특성이 우수하게 된다.Accordingly, when the shock is transmitted from the driving means 600 to the front lower arm 400, the impact shock transmitted to the front lower arm 400 is transmitted to the front side member 200 and the front cross member 300. It is absorbed by it, so durability and collision characteristics are excellent.

또한 상기 프론트로어아암(400)의 제2힌지부(420)가 브라켓트(500)의 원형밀착부(510)에 고정됨과 더불어 이 브라켓트(500)의 차체고정부(520)는 프론트센타멤버(110)에 보울트와 너트로 고정되어, 도 8에 도시된 것과 같이 충돌충격이 클경우에는 상기 프론트로어아암(400)의 제2힌지부(420)가 후방으로 밀리면서 상기 프론트센타멤버(110)의 하부로 밀리게 되어, 상기 차체프론트플로어(100)로 침입하지 않게 되므로 승객의 인명피해를 최대한으로 방지할 수 있게 된다.In addition, the second hinge portion 420 of the front lower arm 400 is fixed to the circular contact portion 510 of the bracket 500 and the body fixing part 520 of the bracket 500 is the front center member 110. When the impact shock is large as shown in FIG. 8, the second hinge portion 420 of the front lower arm 400 is pushed backward and the rear center member 110 of the front center member 110 is fixed to the bolt and nut. Since it is pushed to the lower part, it does not invade into the vehicle front floor 100, and thus it is possible to prevent passenger's casualty to the maximum.

한편 상기 프론트크로스멤버(300)는 중앙부가 폐단면을 이루면서 양단에만 U자형상의 고정부(310)가 갖춰진 구조로, 그 구조가 간단하여 제작이 쉽고 설계자의 설계자유도가 우수함은 물론, 조립성과 생산성이 우수하게 된다.On the other hand, the front cross member 300 is a structure having a U-shaped fixing portion 310 only at both ends while the central portion forms a closed cross section, and its structure is simple and easy to manufacture, and excellent design freedom of the designer, as well as assembly and productivity This will be excellent.

이상 설명한 바와 같이 본 발명에 따른 승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조에 의하면, 프론트크로스멤버의 하부에 프론트로어아암의 1힌지부이 고정됨과 더불어 차체 플로어하단의 센터멤버에 프론트로어아암의 다른 1힌지부이 소정형상의 브라켓트를 매개로 설치되므로, 구조가 간단하여 경량화가 가능할 뿐만 아니라 설계자유도도 우수함은 물론, 충돌시 프론트로어아암이 차체플로어프레임의 안쪽으로 침입하는 경우가 없게 되어 충돌안정성도 향상시킬 수 있는 효과가 있다.As described above, according to the installation structure of the McPherson suspension front lower arm of the passenger car according to the present invention, one hinge portion of the front lower arm is fixed to the lower portion of the front cross member and the front lower arm is fixed to the center member of the lower body floor. Since the other one hinge part is installed through a bracket of a predetermined shape, the structure is simple and lightweight, and the design freedom is excellent, and the front lower arm does not invade the inside of the vehicle floor frame during a collision. There is also an effect that can be improved.

Claims (3)

차체프론트플로어(100)와 소정위치에 설치된 좌우측의 프론트사이드멤버(200)를 가로질러 고정된 소정형상의 프론트크로스멤버(300)에 프론트로어아암(400)의 제1힌지부(410)가 고정되고, 상기 차체프론트플러어(100)의 하부에 설치된 프론트센타멤버(110)에 프론트로어아암(400)의 제2힌지부(420)가 브라켓트(500)를 매개로 고정되고, 이 프론트로어아암(400)의 남은 제3힌지부(430)에는 타이어 등으로 이루어진 휠(600)이 설치된 것을 특징으로 하는 승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조.The first hinge portion 410 of the front lower arm 400 is fixed to the front cross member 300 of a predetermined shape fixed across the front body 100 on the left and right sides installed at a predetermined position with the vehicle front floor 100. The second hinge portion 420 of the front lower arm 400 is fixed to the front center member 110 installed at the lower portion of the vehicle front plug 100 through the bracket 500, and the front lower arm The remaining third hinge portion 430 of the 400, the installation structure of the front wheel arm for McPherson suspension of a passenger car, characterized in that a wheel 600 made of a tire or the like is installed. 제1항에 있어서, 상기 프론트크로스멤버(300)는, 상기 프론트사이드멤버(200)의 하부에 보울트 등의 체결수단에 의해 체결됨과 더불어 프론트로어아암(400)의 제1힌지부(410)가 보울트 등의 체결수단에 의해 고정되도록 양단이 U자 형상의 고정부(310)를 갖춘 것을 특징으로 하는 승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조.The front cross member 300 is fastened to a lower portion of the front side member 200 by a fastening means such as a bolt, and the first hinge portion 410 of the front lower arm 400 is formed. An installation structure of a McPherson suspension front lower arm for a passenger car, characterized in that both ends are provided with a U-shaped fixing part 310 so as to be fixed by a fastening means such as a bolt. 제1항에 있어서, 상기 브라켓트(500)는, 상기 프론트로어아암(400)의 제2힌지부(420)를 감싸는 형태로 성형된 원형밀착부(510)와, 이 원형밀착부(510)에서 일체로 연장되어 양단이 상기 프론트센타멤버(110)에 밀착되도록 성형된 차체고정부(520)와, 이 차체고정부(520)에 보울트와 너트 등의 체결수단이 끼워져 상기 원형밀착부(510)에 끼워진 제2힌지부(420)가 고정됨은 물론 상기 프론트센타멤버(110)에 체결하기 위한 구멍(530)을 갖춘 것을 특징으로 하는 승용차의 맥퍼슨형 서스펜션용 프론트로어아암의 설치구조.The method of claim 1, wherein the bracket 500, the circular close contact portion 510 formed in a shape surrounding the second hinge portion 420 of the front lower arm 400, and the circular contact portion 510 The body fixing part 520 is formed integrally extended so that both ends are in close contact with the front center member 110, and a fastening means such as a bolt and a nut is fitted into the body fixing part 520 so that the circular contact part 510 is fitted. Mounting structure of the McPherson suspension front lower arm of the passenger car, characterized in that the second hinge portion 420 is fitted to the fixed as well as a hole 530 for fastening to the front center member 110.
KR1019960061809A 1996-12-05 1996-12-05 Structure of establishing front lower arm for passenger car of macferson type suspension KR100192403B1 (en)

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