KR20070061666A - Sub frame reinforcing structure - Google Patents

Sub frame reinforcing structure Download PDF

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Publication number
KR20070061666A
KR20070061666A KR1020050121308A KR20050121308A KR20070061666A KR 20070061666 A KR20070061666 A KR 20070061666A KR 1020050121308 A KR1020050121308 A KR 1020050121308A KR 20050121308 A KR20050121308 A KR 20050121308A KR 20070061666 A KR20070061666 A KR 20070061666A
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KR
South Korea
Prior art keywords
mounting bracket
reinforcing member
vehicle
suspension arm
mounting
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KR1020050121308A
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Korean (ko)
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KR101103962B1 (en
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박명만
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현대자동차주식회사
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Priority to KR1020050121308A priority Critical patent/KR101103962B1/en
Publication of KR20070061666A publication Critical patent/KR20070061666A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B62D21/05—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members pinched frame type, i.e. formed of at least two longitudinal frame sections connected by other longitudinal frame sections of lesser transverse dimension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/157—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body for side impacts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein

Abstract

A sub frame reinforcing structure is provided to reduce a load noise and improve a handling characteristic by stably supporting a suspension arm mounted on the sub frame. A sub frame reinforcing structure includes two cross members(11,12), two side members(13), mounting brackets(14,15), and a reinforcing member(16). The two cross members are elongated along the width of a vehicle. The two side members are elongated along the length of the vehicle. Both ends of the two cross members and both ends of the two side members are connected to each other to form a rectangular shape. A steering gear box is arranged along the width of the vehicle on the first cross member and is mounted and supported by a bracket. The mounting bracket is attached on both ends of the first cross member for mounting one end of a suspension arm. The mounting bracket is attached on a rear surface of each side member for mounting a torsion bar. One side of the mounting bracket for the suspension arm and one side of the mounting bracket of the torsion bar are connected to each other through the reinforcing member for increasing the lengthwise bending stiffness of each side member.

Description

서브프레임 보강구조{Sub frame reinforcing structure}Sub frame reinforcing structure}

도 1은 종래 기술에 따른 서브프레임의 사시도,1 is a perspective view of a subframe according to the prior art,

도 2는 본 발명에 따른 보강부재가 장착된 서브프레임의 사시도,2 is a perspective view of a subframe equipped with a reinforcing member according to the present invention;

도 3과 도 4는 본 발명에 따른 보강부재 마운팅 부위의 확대 상세도이다.3 and 4 is an enlarged detail of the reinforcing member mounting portion according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

11,12-크로스 멤버 13-사이드 멤버11,12-cross member 13-side member

14-현가아암 장착브라켓 15-토션바아 장착브라켓14-Suspension Arm Mounting Bracket 15-Torsion Bar Mounting Bracket

16-보강부재16-reinforcement member

본 발명은 서브프레임 보강구조에 관한 것으로, 특히 현가아암 마운팅 브라켓과 토션 바아 마운팅 브라켓을 보강부재로 일체로 연결해서 서브프레임의 구조적인 강성을 증대시키도록 한 서브프레임 보강구조에 관한 것이다.The present invention relates to a subframe reinforcement structure, and more particularly, to a subframe reinforcement structure in which the suspension arm mounting bracket and the torsion bar mounting bracket are integrally connected with a reinforcement member to increase the structural rigidity of the subframe.

도 1에는 종래 기술에 따른 서브프레임의 구조가 도시되어 있는 바, 즉 차량의 폭 방향으로 연장되게 형성된 2개의 크로스 멤버(1,2)의 양단부가 차량의 길이 방향으로 연장되게 형성된 2개의 사이드 멤버(3)의 양단부와 연결되어 대략 사각 프레임 형상을 이루고 있고, 상기 제1크로스 멤버(1)에는 스티어링 기어박스(4)가 동일한 방향으로 배치되어 브라켓을 매개로 장착되어 지지된다.1 shows a structure of a subframe according to the prior art, that is, two side members formed at both ends of two cross members 1 and 2 extending in the width direction of the vehicle and extending in the longitudinal direction of the vehicle. It is connected to both ends of (3) to form a substantially rectangular frame shape, the steering gear box (4) is arranged in the same direction on the first cross member (1) is supported via a bracket mounted.

그리고, 상기 제1크로스 멤버(1)의 양단부에는 현가아암(5)의 일단을 마운팅하기 위한 장착브라켓(6)이 장착되어 있고, 상기 각 사이드 멤버(3)의 배면에는 토션 바아를 장착하기 위한 장착브라켓(7)이 부착되어 있다.In addition, mounting brackets 6 for mounting one end of the suspension arm 5 are mounted at both ends of the first cross member 1, and a rear side of each side member 3 is provided for mounting a torsion bar. The mounting bracket 7 is attached.

그런데, 상기와 같은 종래의 서브프레임 구조에서는 상기 스티어링 기어박스(4)가 제1크로스 멤버에 장착되어 지지됨에 따라 상기 양측 사이드 멤버(3)를 스티어링 기어박스와의 간섭을 피하기 위해 굴곡되게 형성시켜야 하고, 이로 인해 사이드 멤버의 구조적인 강성이 취약해지면서 충돌 사고 발생시에 효과적으로 대응하기가 어렵게 되고, 또한 상기 현가아암 장착브라켓의 장착강성도 취약해져 차량의 주행 중에 로드 노이즈와 핸들링 특성에 불리하다고 하는 결점이 있었다.However, in the conventional subframe structure as described above, as the steering gearbox 4 is mounted and supported on the first cross member, the side side members 3 should be curved to avoid interference with the steering gearbox. As a result, the structural rigidity of the side member becomes weak, making it difficult to effectively cope with a crash, and the mounting rigidity of the suspension arm mounting bracket is also weakened, which is disadvantageous for road noise and handling characteristics while driving the vehicle. There was this.

이에 본 발명은 상기와 같은 사정을 감안하여 안출된 것으로, 스티어링 기어박스로 인해 굴곡되어 성형됨에 따라 취약해진 사이드 멤버의 강성을 보강하는 보강부재를 추가하여 차량의 충돌 사고 발생시에 효과적으로 대응할 수 있을 뿐만 아니라 차량의 안정된 핸들링 특성과 로드 노이즈의 저감을 도모할 수 있도록 한 서브프레임 보강구조를 제공함에 그 목적이 있다.Accordingly, the present invention is conceived in view of the above circumstances, by adding a reinforcing member to reinforce the rigidity of the vulnerable side member as it is bent and molded by the steering gear box can effectively respond to the collision of the vehicle. It is also an object of the present invention to provide a subframe reinforcement structure capable of achieving stable handling characteristics of vehicles and reduction of road noise.

상기와 같은 목적을 달성하기 위한 본 발명은, 현가아암 장착브라켓과 토션바아 장착브라켓이 차량이 길이 반향을 따라 연장되게 형성된 보강부재에 의해 서 로 연결되어 좌우측 사이드 멤버의 강성이 보강되는 구조로 되어 있다.The present invention for achieving the above object, the suspension arm mounting bracket and the torsion bar mounting bracket is connected to each other by a reinforcing member formed so that the vehicle extends along the length of the reinforcement of the structure of the left and right side members are reinforced have.

바람직하기로는, 상기 보강부재의 일단부에는 플랜지가 직하게 절곡되어 형성되고, 상기 플랜지가 상기 현가아암 장착브라켓에 부착된 것을 특징으로 한다.Preferably, one end of the reinforcing member is formed by bending the flange straight, characterized in that the flange is attached to the suspension arm mounting bracket.

또한, 상기 보강부재는 Ｖ자 형상을 한 양측 날개와, 이 양측 날개를 일체로 연결하는 중앙의 수평한 플랜지를 구비하고, 상기 토션바아 장착브라켓이 상기 보강부재의 단면과 동일한 단면을 갖도록 형성된 것을 특징으로 한다.In addition, the reinforcing member is provided with both sides of the U-shape wing and the central horizontal flange connecting the two wings integrally, and the torsion bar mounting bracket is formed to have the same cross section as the cross section of the reinforcing member. It features.

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 2에는 본 발명에 따른 서브프레임 구조가 사시도로 도시되어 있는 바, 차량의 폭 방향으로 연장되어 형성된 2개의 크로스 멤버(11,12)의 양단부가 차량의 길이 방향으로 연장되어 형성된 2개의 사이드 멤버(13)의 양단부와 연결되어 대략 사각 프레임 형상을 이루고, 상기 제1크로스 멤버(11)에는 스티어링 기어박스가 차량의 폭 방향으로 배치되어 브라켓을 통해 장착되어 지지된다.FIG. 2 is a perspective view of a subframe structure according to the present invention, wherein two side members having both ends of two cross members 11 and 12 extending in the width direction of the vehicle and extending in the longitudinal direction of the vehicle are shown. It is connected to both ends of (13) to form a substantially rectangular frame shape, the steering gear box is disposed in the width direction of the vehicle to the first cross member 11 is mounted and supported through the bracket.

그리고, 상기 제1크로스 멤버(11)의 양단부에는 현가아암의 일단을 마운팅하기 위한 장착브라켓(14)이 부착되어 있고, 상기 각 사이드 멤버(13)의 배면에는 토션 바아를 장착하기 위한 장착브라켓(15)이 부착되어 있다.In addition, mounting brackets 14 for mounting one end of the suspension arm are attached to both ends of the first cross member 11, and mounting brackets for mounting the torsion bar on the back of each side member 13 ( 15) is attached.

상기 각 사이드 멤버(13)의 길이 방향 굽힘 강성을 증대시키기 위해 상기 현가아암의 장착브라켓(14)의 일측면과 상기 토션 바아의 장착브라켓(15)이 보강부재(16)를 매개로 서로 연결되어 있다.In order to increase the longitudinal bending rigidity of each side member 13, one side of the mounting bracket 14 of the suspension arm and the mounting bracket 15 of the torsion bar are connected to each other via a reinforcing member 16. have.

상기 보강부재(16)는 차체의 길이 방향으로 연장되게 형성되면서 그 단면은 2개의 Ｖ자 형상의 날개와, 이 날개를 서로 이어주는 중앙의 수평한 플랜지를 구비 한 구조로 되어 있다.The reinforcing member 16 is formed to extend in the longitudinal direction of the vehicle body and has a cross-section having two U-shaped wings and a central horizontal flange connecting the wings to each other.

상기 보강부재(16)의 일단부는 상기 현가아암 장착브라켓(14)의 측면에 용접으로 부착될 수 있도록 수직하게 절곡된 플랜지(16a)가 일체로 형성되어 있는 반면에 상기 보강부재(16)의 타단부는 상기 토션바아 장착브라켓(16)과 안정되게 연결되도록 상기 토션바아 장착브라켓도 상기와 동일한 형상의 단면을 가지게 된다.One end of the reinforcing member 16 is integrally formed with a flange 16a bent vertically to be welded to the side of the suspension arm mounting bracket 14, while the other of the reinforcing member 16 An end portion of the torsion bar mounting bracket 16 has a cross section of the same shape as that of the torsion bar mounting bracket 16 so as to be stably connected.

상기와 같이 보강부재가 장착되면 상기 스티어링 기어박스는 보강부재 위에 배치되어 보강부재에 의해 지지될 수 있고, 차량의 충돌 사고 발생시에 상기 사이드 멤버에 가해지는 충격에 대해 상기 보강부재로 인해 증대된 굽힘 강성으로 효과적으로 대응할 수 있을 뿐만 아니라 사이드 멤버의 변형도 최소화시킬 수 있게 된다.When the reinforcing member is mounted as described above, the steering gearbox may be disposed on the reinforcing member and supported by the reinforcing member, and increased bending due to the reinforcing member against the impact applied to the side member in the event of a collision of the vehicle. Not only can the rigidity respond effectively, but it also minimizes the deformation of the side members.

또한, 현가아암이 장착된 장착브라켓(14)이 보강부재를 통해 사이드 멤버에 의해 지지됨에 따라 장착브라켓의 장착 강성이 증대되어 차량의 핸들링 특성을 안정화시킬 수 있을 뿐만 아니라 차량의 주행 중에 차체에 전달되는 로드 노이즈에 대해서도 효과적으로 대응해서 저감시킬 수 있게 된다.In addition, as the mounting bracket 14 equipped with the suspension arm is supported by the side member through the reinforcing member, the mounting rigidity of the mounting bracket is increased, which not only stabilizes the handling characteristics of the vehicle but also transmits it to the vehicle body during driving. The resulting load noise can also be effectively coped with and reduced.

이상 설명한 바와 같이 본 발명에 따른 서브프레임 보강구조에 의하면, 스티어링 기어박스의 배치로 인해 굴곡되게 성형됨에 따라 강성이 취약해진 사이드 멤버를 보강부재를 통해 증대시켜 차량의 충돌 사고 발생시에 사이드 멤버의 변형을 최소화시키면서 효과적으로 대응할 수 있게 되고, 서브프레임에 장착된 현가아암을 보다 안정되게 지지해서 핸들링 특성의 향상과 로드 노이즈의 저감을 도모할 수 있 는 등의 효과가 있게 된다.As described above, according to the subframe reinforcement structure according to the present invention, the side member, which is weakly rigid due to the arrangement of the steering gear box, is increased by the reinforcement member so that the side member is deformed in the event of a collision of the vehicle. It is possible to cope effectively while minimizing the number, and to support the suspension arm mounted on the subframe more stably, thereby improving the handling characteristics and reducing the load noise.

Claims (4)

현가아암 장착브라켓과 토션바아 장착브라켓이 차량이 길이 반향을 따라 연장되게 형성된 보강부재에 의해 서로 연결되어 좌우측 사이드 멤버의 강성이 보강된 서브프레임 보강구조.A subframe reinforcement structure in which the suspension arm mounting bracket and the torsion bar mounting bracket are connected to each other by a reinforcing member formed so that the vehicle extends along the longitudinal direction, and the rigidity of the left and right side members is reinforced. 제 1항에 있어서, 상기 보강부재의 일단부에는 플랜지가 직하게 절곡되어 형성되고, 상기 플랜지가 상기 현가아암 장착브라켓에 부착된 것을 특징으로 하는 서브프레임 보강구조.2. The subframe reinforcement structure of claim 1, wherein one end of the reinforcing member is formed by bending a flange straightly, and the flange is attached to the suspension arm mounting bracket. 제 2항에 있어서, 상기 보강부재는 Ｖ자 형상을 한 양측 날개와, 이 양측 날개를 일체로 연결하는 중앙의 수평한 플랜지를 구비하고, 상기 토션바아 장착브라켓이 상기 보강부재의 단면과 동일한 단면을 갖도록 형성된 것을 특징으로 하는 서브프레임 보강구조.3. The reinforcing member according to claim 2, wherein the reinforcing member has a U-shaped bilateral wing, and a central horizontal flange for connecting the two wings integrally, wherein the torsion bar mounting bracket has the same cross section as that of the reinforcing member. Subframe reinforcement structure, characterized in that formed to have. 제 3항에 있어서, 상기 좌우측 사이드 멤버의 양단부는 차량의 폭 방향으로 연장되어 형성된 2개의 제1,2크로스 멤버의 양단부와 각각 연결된 것을 특징으로 하는 서브프레임 보강구조.4. The subframe reinforcement structure of claim 3, wherein both ends of the left and right side members are connected to both ends of two first and second cross members extending in the width direction of the vehicle, respectively.
KR1020050121308A 2005-12-10 2005-12-10 Sub frame reinforcing structure KR101103962B1 (en)

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KR101103962B1 KR101103962B1 (en) 2012-01-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120057144A (en) * 2010-11-26 2012-06-05 현대자동차주식회사 Rear cross member for rear driven vehicle
CN113650678A (en) * 2021-09-16 2021-11-16 奇瑞商用车（安徽）有限公司 Mounting structure of new forms of energy plantago sub vehicle frame

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100217668B1 (en) * 1996-12-19 1999-09-01 정몽규 Mounting structure of sub frame and lower arm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120057144A (en) * 2010-11-26 2012-06-05 현대자동차주식회사 Rear cross member for rear driven vehicle
CN113650678A (en) * 2021-09-16 2021-11-16 奇瑞商用车（安徽）有限公司 Mounting structure of new forms of energy plantago sub vehicle frame

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