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KR20030096618A - Mounting structure for suspension crossmember - Google Patents

Mounting structure for suspension crossmember Download PDF

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Publication number
KR20030096618A
KR20030096618A KR1020020033594A KR20020033594A KR20030096618A KR 20030096618 A KR20030096618 A KR 20030096618A KR 1020020033594 A KR1020020033594 A KR 1020020033594A KR 20020033594 A KR20020033594 A KR 20020033594A KR 20030096618 A KR20030096618 A KR 20030096618A
Authority
KR
South Korea
Prior art keywords
cross member
hole
stopper member
bolt
stopper
Prior art date
Application number
KR1020020033594A
Other languages
Korean (ko)
Other versions
KR100492403B1 (en
Inventor
박경수
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR10-2002-0033594A priority Critical patent/KR100492403B1/en
Publication of KR20030096618A publication Critical patent/KR20030096618A/en
Application granted granted Critical
Publication of KR100492403B1 publication Critical patent/KR100492403B1/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
    • B60G7/001—Suspension arms, e.g. constructional features
    • 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
    • B60G2206/80—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

PURPOSE: Structure for a cross member mounting in a suspension for a vehicle is provided to prevent lowering of steering stability from change of wheel alignment by restricting the cross member from moving against the vehicle body with inserting a stopper to a taper hole. CONSTITUTION: A cross member mounting structure comprises a cross member(100) having a through hole(102); a taper hole(104) formed in the lower part of the through hole of the cross member; a stopper member(130) inserted to the taper hole; a bolt(110) inserted to the taper member, the through hole and the vehicle body; and a nut combined with the bolt to fasten the cross member to the vehicle body. An inclined surface is formed outside the stopper member, and a slit is formed in the stopper member. The height of the stopper member at one side of the slit is different from the height of the stopper member at the other side of the slit. The cross member is fastened firmly by combining the bolt with the through hole accurately with forming the inclined surface of the stopper member.

Description

차량 현가장치용 크로스멤버 마운팅 구조 {MOUNTING STRUCTURE FOR SUSPENSION CROSSMEMBER}Crossmember mounting structure for vehicle suspension {MOUNTING STRUCTURE FOR SUSPENSION CROSSMEMBER}

본 발명은 차량 현가장치용 콘트롤아암용 부쉬에 관한 것으로서, 특히 압입작업이 용이하고 압입 후에는 이탈을 방지할 수 있는 차량 현가장치용 콘트롤아암용 부쉬에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bushing for a control arm for a vehicle suspension, and more particularly to a bushing for a control arm for a vehicle suspension that can be easily pushed in and prevented from coming off after the press.

일반적으로 차량의 현가장치는 타이어와 차체를 연결하여 주행중에 타이어가 노면으로부터 받는 진동이나 충격을 차체에 직접적으로 전달되지 않도록 제어하여 차체와 화물의 손상을 방지하고 승차감을 좋게 만드는 장치로서 노면으로부터 충격을 완화시키는 스프링과, 스프링의 자유진동을 제어하여 승차감을 좋게 하는 쇽업소버 및 차량의 롤링을 방지하는 스태빌라이저바, 차륜의 상하방향운동을 허용하며 횡방향에 대해서는 움직임을 억제하는 콘트롤아암(로어아암, 어퍼아암 및 링크류 등) 및 휠을 회전자유롭게 지지하며 콘트롤아암에 연결된 너클 등으로 구성된다.In general, the suspension system of a vehicle connects the tire and the car body to prevent the tire from being transmitted directly to the car body during vibration while preventing the damage to the car body and cargo and improving ride comfort. Springs to reduce tension, shock absorbers that control the free vibration of the springs to improve ride quality, stabilizer bars that prevent rolling of the vehicle, and control arms that allow vertical movement of the wheels and suppress movement in the lateral direction. , Upper arm and linkage) and wheel freely rotating and consist of knuckle connected to control arm.

여기서 상기 스태빌라이저바는 좌우의 콘트롤암에 양단이 장착되어 좌우의 바퀴가 서로 동시에 상하운동하는 경우에는 작용하지 않지만, 좌우의 바퀴가 서로 상하운동하는 경우에는 비틀려져 그 때에 발생하는 스프링 복원력으로 차체의 롤을 감소시키는 역할을 하고 있다.Here, the stabilizer bar is mounted at both ends of the left and right control arms and does not work when the left and right wheels move up and down at the same time. It serves to reduce the roll.

도 1은 상기와 같은 종래의 스태빌라이저바와 로어아암의 장착구조를 나타내는 사시도(특허 제291058호)이다. 크로스멤버(100)의 양쪽 선단부에 각각 장착된 로어아암(101)의 각 선단부는 너클을 매개로 차륜과 체결되어, 차륜을 적절히 지지해주게 되어 있다.1 is a perspective view (Patent No. 291058) showing a mounting structure of a conventional stabilizer bar and a lower arm as described above. Each front end of the lower arm 101 attached to both front ends of the crossmember 100 is engaged with the wheel via a knuckle to properly support the wheel.

크로스멤버(100)에 대하여 로어아암(101)이 회전운동 또는 미소변위를 허용할 수 있도록 로어암(101)은 부쉬를 매개로 크로스멤버(100)에 장착되어 있다.The lower arm 101 is mounted to the cross member 100 via a bush so that the lower arm 101 can allow rotational movement or micro displacement with respect to the cross member 100.

크로스멤버(100)에는 관통공이 형성되며, 상기 관통공에 삽입되는 볼트를 이용하여 차체에 취부된다.A through hole is formed in the cross member 100 and is mounted to the vehicle body by using a bolt inserted into the through hole.

도2는 종래의 차량 현가장치용 크로스멤버(100)의 마운팅 구조를 나타내는 단면도이다.2 is a cross-sectional view illustrating a mounting structure of a conventional cross member 100 for a vehicle suspension device.

도2에 도시된 바와 같이, 종래 기술의 크로스멤버(100)에는 관통공(102)이 형성되어 있으며, 차체(120)에도 관통공이 형성되어 있다.As shown in FIG. 2, a through hole 102 is formed in the cross member 100 of the prior art, and a through hole is also formed in the vehicle body 120.

크로스멤버(100)에 형성된 관통공(102)와 차체(120)에 형성된 관통공을 서로 맞춘 후 볼트(110)와 너트(112)를 이용하여 크로스멤버(100)를 차체(120)에 취부한다. 크로스멤버(100) 하단과 볼트(110) 사이에 개재된 부품은 평와셔(114)이다. 별개 부품인 평와셔(114) 대신에 볼트(110)의 헤드부 직경을 크게 형성하는 경우도 있다.After the through holes 102 formed in the cross member 100 and the through holes formed in the vehicle body 120 are aligned with each other, the cross member 100 is mounted to the vehicle body 120 using the bolts 110 and the nuts 112. . The part interposed between the bottom of the cross member 100 and the bolt 110 is a flat washer 114. Instead of the flat washer 114, which is a separate component, the diameter of the head portion of the bolt 110 may be large.

그런데 상기와 같은 차량 현가장치용 크로스멤버(100)의 마운팅 구조는 다음과 같은 문제점이 있었다.However, the mounting structure of the vehicle suspension cross member 100 as described above had the following problems.

즉, 크로스멤버(100)에는 관통공(102)이 복수개 형성되어 있으며 제작시 발생하는 오차로 인하여 차체에 형성된 관통공과 정확히 일치시킬 수 없었다. 따라서, 종래에는 크로스멤버(100)에 형성된 관통공(102)의 내경을 볼트의 외경보다 크게 성형하고 있다.That is, the plurality of through-holes 102 are formed in the cross member 100 and could not be exactly matched with the through-holes formed in the vehicle due to an error generated during manufacturing. Therefore, conventionally, the inner diameter of the through hole 102 formed in the cross member 100 is formed larger than the outer diameter of the bolt.

그런데 타이어와 노면 사이에 발생하는 힘이 콘트롤아암 등을 거쳐 크로스멤버(100)에 작용하는 경우, 볼트(110)와 관통공(102) 사이의 유격으로 인하여 서스펜션크로스멤버(100)에 유동이 발생하게 된다. 즉, 크로스멤버(100)는 볼트(110)의 체결토크에 의해 차체(120) 및 크로스멤버(100) 또는 평와셔(114) 및 크로스멤버(100) 사이의 마찰력에 의해서만 고정되기 때문에 마찰력 보다 큰 힘이작용하는 경우 크로스멤버(100)가 유동하게 되는 것이다. 크로스멤버(100)가 유동하는 경우, 크로스멤버(100)에 부쉬를 매개로 회동가능하게 설치된 로어암(101) 마운팅 포인트가 이동하게 되어 캠버, 킹핀경사각 등 휠얼라인먼트가 변화하게 된다. 따라서, 종래의 기술은 크로스멤버(100)의 유동 발생에 의해 휠얼라인먼트가 변화하여 차량의 조종안정성에 영향을 미치게 되는 문제점이 있었다.However, when the force generated between the tire and the road surface acts on the cross member 100 via the control arm, the flow occurs in the suspension cross member 100 due to the play between the bolt 110 and the through hole 102. Done. That is, the cross member 100 is larger than the friction force because it is fixed only by the friction force between the vehicle body 120 and the cross member 100 or the flat washer 114 and the cross member 100 by the fastening torque of the bolt 110. When the force acts that the cross member 100 will flow. When the cross member 100 flows, the lower arm 101 mounting point rotatably installed on the cross member 100 through the bush is moved to change the wheel alignment such as camber and king pin inclination angle. Therefore, the prior art has a problem that the wheel alignment is changed by the flow of the cross member 100 affects the steering stability of the vehicle.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 차량 현가장치용 크로스멤버의 유동을 방지할 수 있는 마운팅 구조를 제공하기 위한 것이다.The present invention is to solve the above problems, and to provide a mounting structure that can prevent the flow of the cross member for vehicle suspension.

도1은 종래의 현가장치를 도시하는 사시도1 is a perspective view showing a conventional suspension device

도2는 종래의 차량 현가장치용 크로스멤버 마운팅 구조를 나타내는 단면도Figure 2 is a cross-sectional view showing a conventional cross member mounting structure for a vehicle suspension

도3은 본 발명에 의한 차량 현가장치용 크로스멤버 마운팅 구조를 나타내는 단면도Figure 3 is a cross-sectional view showing a crossmember mounting structure for a vehicle suspension according to the present invention

도4는 본 발명의 스토퍼부재를 나타내는 사시도Figure 4 is a perspective view of the stopper member of the present invention

도5는 본 발명의 스토퍼부재의 다른 실시예를 나타내는 사시도Figure 5 is a perspective view showing another embodiment of the stopper member of the present invention

*도면의 주요기호에 대한 간략한 설명** Brief description of the major symbols in the drawings *

100 크로스멤버100 crossmembers

130 스토퍼부재130 stopper member

상기와 같은 목적을 달성하기 위해 본 발명의 차량 현가장치용 크로스멤버 마운팅 구조는, 관통공이 형성된 크로스멤버와; 상기 크로스멤버의 관통공 하부에 형성된 테이퍼공과; 상기 테이퍼공에 삽입되는 스토퍼부재와; 상기 테이퍼부재, 관통공 및 차체에 삽입되는 볼트와; 상기 크로스멤버가 차체에 고정되도록 상기 볼트에 나사결합되는 너트로 이루어지되; 상기 스토퍼부재의 외면에는 경사면이 형성된 것을 특징으로 한다.In order to achieve the above object, a cross member mounting structure for a vehicle suspension device according to the present invention includes a cross member having a through hole formed therein; A taper hole formed under the through hole of the cross member; A stopper member inserted into the taper hole; A bolt inserted into the taper member, the through hole and the vehicle body; The cross member is made of a nut screwed to the bolt to be fixed to the vehicle body; The outer surface of the stopper member is characterized in that the inclined surface is formed.

또한, 본 발명의 차량 현가장치용 크로스멤버 마운팅구조에서, 상기 스토퍼부재에는 슬리트가 형성되며, 상기 슬리트를 경계로 스토퍼부재의 양측의 높이가 서로 다르게 형성된 것을 특징으로 한다.In addition, in the cross member mounting structure for a vehicle suspension apparatus of the present invention, the stopper member is formed with slits, and the heights of both sides of the stopper member are different from each other based on the slits.

이하, 본 발명의 바람직한 실시예에 대하여 첨부된 도3 내지 도5를 참조하여 설명한다. 도3은 본 발명의 차량 현가장치용 크로스멤버의 마운팅 구조를 나타내는단면도이고, 도4는 스토퍼부재를 나타내는 사시도이며, 도5는 스토퍼부재의 다른 실시예를 나타내는 사시도이다.Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 3 to 5. Figure 3 is a cross-sectional view showing a mounting structure of the cross member for a vehicle suspension of the present invention, Figure 4 is a perspective view showing a stopper member, Figure 5 is a perspective view showing another embodiment of the stopper member.

도3 및 도4에 도시되어 있듯이, 본 발명의 크로스멤버(100)에는 관통공(102)과 테이퍼공(104)이 형성되어 있다. 테이퍼공(104)은 크로스멤버(100)의 조립작업을 용이하게 하기 위하여 관통공(102)의 하부에 형성하는 것이 바람직하다.3 and 4, the through member 102 and the taper hole 104 are formed in the cross member 100 of the present invention. Tapered hole 104 is preferably formed in the lower portion of the through hole 102 in order to facilitate the assembly of the cross member 100.

크로스멤버(100)의 테이퍼공(104)에는 스토퍼부재(130)가 삽입된다. 스토퍼부재(130)에는 볼트(110)의 몸체가 삽입될 수 있도록 내부에 홀이 관통되게 형성되어 있으며, 스토퍼부재(130)의 외면에는 아래로 갈수록 직경이 커지는 경사면(134)이 형성되어 있다.The stopper member 130 is inserted into the taper hole 104 of the cross member 100. The stopper member 130 has a hole formed therein so that the body of the bolt 110 can be inserted, the inclined surface 134 is formed on the outer surface of the stopper member 130 to increase in diameter downward.

도5에 도시된 스토퍼부재(130)에는 슬리트(136)가 형성되어 있으며, 슬리트(136)를 중심으로 스토퍼부재(130)의 양쪽은 그 높이가 서로 다르게 형성되어 있다. 물론, 슬리트(136)가 형성된 부분에서 그 높이 차가 가장 크며, 슬리트(136)로부터 멀어질수록 높이 차가 감소하게 된다.Slit 136 is formed in the stopper member 130 shown in FIG. 5, and both sides of the stopper member 130 are formed at different heights with respect to the slit 136. Of course, the height difference is the largest in the portion where the slits 136 are formed, and the height difference decreases away from the slits 136.

즉, 본 발명에서는 크로스멤버(100)를 차체(120)에 대하여 위치시킨 후, 스토퍼부재(130)가 삽입된 볼트(110)를 크로스멤버(100)의 테이퍼공(104), 관통공(102) 및 차체(120)에 삽입하여, 볼트(110)와 너트(112)를 나사결합하여 크로스멤버(100)를 차체(120)에 대하여 조립하게 된다.That is, in the present invention, after the cross member 100 is positioned with respect to the vehicle body 120, the taper hole 104 and the through hole 102 of the cross member 100 are inserted into the bolt 110 into which the stopper member 130 is inserted. ) And the bolt 110 and the nut 112 are screwed to assemble the cross member 100 with respect to the vehicle body 120.

이하, 본 발명의 작용에 대하여 설명한다.Hereinafter, the operation of the present invention will be described.

본 발명에서는 크로스멤버(100)에 형성된 테이퍼공(104)에 스토퍼부재(130)를 삽입하여 볼트(110)로 체결하기 때문에 크로스멤버(100)의 조립작업시, 테이퍼공(104)과 스토퍼부재(130)의 경사면(134)이 서로 접촉하면서 테이퍼공(104)과 스토퍼부재(130)의 중심선이 일치하게 조립되는 것이다. 즉, 크로스멤버(100)에 형성된 관통공(104)이 볼트(110)의 외경 보다 크게 형성되어 있다고 하더라도, 테이퍼공(104)에 조립되는 스토퍼부재(130)에 의해 크로스멤버(100)가 정확한 위치로 차체(120)에 조립되는 것이다.In the present invention, since the stopper member 130 is inserted into the taper hole 104 formed in the cross member 100 and fastened by the bolt 110, the taper hole 104 and the stopper member are assembled at the time of assembling the cross member 100. While the inclined surfaces 134 of 130 are in contact with each other, the tapered hole 104 and the center line of the stopper member 130 are assembled to match. That is, even though the through hole 104 formed in the cross member 100 is formed larger than the outer diameter of the bolt 110, the cross member 100 is accurately formed by the stopper member 130 assembled to the taper hole 104. To be assembled to the vehicle body 120 in position.

또한, 차량 주행시 크로스멤버(100)에 하중이 전달되더라도, 스토퍼부재(130)의 경사면(134)이 크로스멤버(100)의 테이퍼공(104)에 삽입된 상태일 뿐만 아니라 볼트(110)가 차체에 형성된 관통공에 정확하게 위치하기 때문에, 크로스멤버(100)는 차체(120)에 대하여 유동이 발생되지 않는 것이다.In addition, even when a load is transmitted to the cross member 100 when the vehicle is driven, the inclined surface 134 of the stopper member 130 is not only inserted into the taper hole 104 of the cross member 100, but also the bolt 110 is connected to the vehicle body. Because it is precisely located in the through hole formed in the cross member 100 is no flow is generated with respect to the vehicle body (120).

또한, 스토퍼부재(130)에 슬리트(136)를 형성하고, 슬리트(136)를 경계로 스토퍼부재(130)의 양측의 높이를 서로 다르게 하는 경우, 볼트(110)를 조임에 따라 슬리트(136) 양측에서 스토퍼부재(130)가 탄성변형을 일으키면서 조립되게 된다. 따라서, 스토퍼부재(130)의 탄성변형에 의한 반발력이 볼트(110)에 작용하기 때문에 볼트(110)가 잘 풀리지 않을 뿐만 아니라, 스토퍼부재(130)에서 발생하는 반발력이 크로스멤버(100)에 작용하여 크로스멤버(100)를 강하게 구속하여 체결력을 높여주게 된다. 따라서, 슬리트(136)가 형성된 스토퍼부재(130)에 의해 크로스멤버(100)가 차체(120)에 대하여 유동하지 않을 뿐만 아니라 크로스멤버(100)와 차체(120) 사이에 체결력을 강화하는 작용을 하게 된다.In addition, when the slits 136 are formed on the stopper member 130 and the heights of both sides of the stopper member 130 are different from each other on the basis of the slits 136, the slits are formed by tightening the bolt 110. (136) On both sides, the stopper member 130 is assembled while causing elastic deformation. Therefore, since the repulsive force due to the elastic deformation of the stopper member 130 acts on the bolt 110, not only the bolt 110 is loosened, but also the repulsive force generated by the stopper member 130 acts on the cross member 100. Thereby strongly constraining the cross member 100 to increase the fastening force. Therefore, the cross member 100 does not flow with respect to the vehicle body 120 by the stopper member 130 on which the slits 136 are formed, and also acts to strengthen the fastening force between the cross member 100 and the vehicle body 120. Will be

본 발명은, 크로스멤버에 형성된 테이퍼공에 스토퍼부재를 삽입하는 구성을채택하였기 때문에 크로스멤버가 차체에 대하여 유동되는 것을 억제할 수 있어서, 크로스멤버의 유동에 의한 휠얼라인먼트의 변화로 발생하는 조종안정성의 저하를 방지할 수 있다.Since the present invention adopts a configuration in which a stopper member is inserted into a taper hole formed in the cross member, the cross member can be prevented from flowing with respect to the vehicle body, and the steering stability caused by the change in wheel alignment due to the flow of the cross member can be suppressed. Can be prevented from deteriorating.

또한, 본 발명은, 스토퍼부재의 외면을 경사면으로 형성하였기 때문에, 크로스멤버의 조립작업시 볼트가 크로스멤버의 관통공 중앙에 정확하게 자리잡게 되어 차체에 형성된 관통공 보다 크로스멤버에 형성된 관통공의 직경이 크게 형성되어 있다고 하더라도, 크로스멤버를 정확한 위치로 조립할 수 있게 된다.In addition, according to the present invention, since the outer surface of the stopper member is formed as an inclined surface, the bolt is correctly positioned at the center of the through member of the cross member during the assembling operation of the cross member, and thus the diameter of the through hole formed in the cross member rather than the through hole formed in the vehicle body. Even if this is formed large, the cross member can be assembled at the correct position.

또한, 본 발명은, 스토퍼부재에 슬리트를 형성하고 슬리트를 기준으로 스토퍼부재의 양측 높이를 서로 다르게 구성하였기 때문에, 크로스멤버가 차체에 대하여 유동이 발생되지 않을 뿐만 아니라 조립시 체결력이 증대되고 볼트가 잘 풀리지 않게 된다.Further, in the present invention, since the slits are formed on the stopper member and the heights of both sides of the stopper member are configured differently based on the slits, the cross member does not generate flow with respect to the vehicle body and the fastening force is increased during assembly. The bolt will not loosen well.

Claims (2)

관통공이 형성된 크로스멤버와;A cross member having a through hole formed therein; 상기 크로스멤버의 관통공 하부에 형성된 테이퍼공과;A taper hole formed under the through hole of the cross member; 상기 테이퍼공에 삽입되는 스토퍼부재와;A stopper member inserted into the taper hole; 상기 테이퍼부재, 관통공 및 차체에 삽입되는 볼트와;A bolt inserted into the taper member, the through hole and the vehicle body; 상기 크로스멤버가 차체에 고정되도록 상기 볼트에 나사결합되는 너트로 이루어지되;The cross member is made of a nut screwed to the bolt to be fixed to the vehicle body; 상기 스토퍼부재의 외면에는 경사면이 형성된 것을 특징으로 하는 차량 현가장치용 크로스멤버 마운팅구조Cross member mounting structure for a vehicle suspension, characterized in that the inclined surface is formed on the outer surface of the stopper member 제1항에 있어서,The method of claim 1, 상기 스토퍼부재에는 슬리트가 형성되며,Slit is formed in the stopper member, 상기 슬리트를 경계로 스토퍼부재의 양측의 높이가 서로 다르게 형성된 것을 특징으로 하는 차량 현가장치용 크로스멤버 마운팅구조Cross member mounting structure for a vehicle suspension, characterized in that the height of both sides of the stopper member is formed differently on the basis of the slits
KR10-2002-0033594A 2002-06-17 2002-06-17 Mounting structure for suspension crossmember KR100492403B1 (en)

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Publication number Priority date Publication date Assignee Title
JPH068012U (en) * 1992-07-10 1994-02-01 マツダ株式会社 Suspension arm mounting structure
KR200145126Y1 (en) * 1996-05-30 1999-06-15 양재신 Suspension bush with adjustable rigidity
KR200229857Y1 (en) * 1997-12-16 2001-07-19 정주호 A bush

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