KR20020047406A - vehicle body - Google Patents

vehicle body Download PDF

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Publication number
KR20020047406A
KR20020047406A KR1020000075794A KR20000075794A KR20020047406A KR 20020047406 A KR20020047406 A KR 20020047406A KR 1020000075794 A KR1020000075794 A KR 1020000075794A KR 20000075794 A KR20000075794 A KR 20000075794A KR 20020047406 A KR20020047406 A KR 20020047406A
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KR
South Korea
Prior art keywords
cross member
vehicle body
body structure
frame
bracket
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KR1020000075794A
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Korean (ko)
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KR100373655B1 (en
Inventor
함병렬
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류정열
기아자동차주식회사
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Priority to KR10-2000-0075794A priority Critical patent/KR100373655B1/en
Publication of KR20020047406A publication Critical patent/KR20020047406A/en
Application granted granted Critical
Publication of KR100373655B1 publication Critical patent/KR100373655B1/en

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Classifications

    • 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
    • B62D21/152—Front or rear frames
    • B62D21/155—Sub-frames or underguards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/02—Connections between superstructure or understructure sub-units rigid
    • B62D27/023—Assembly of structural joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

PURPOSE: Structure of a chassis for a vehicle is provided to improve the safety of an occupant by restraining the movement of a first cross member toward a second cross member in a head-on collision of a vehicle. CONSTITUTION: A side frame(40) is connected with a side sill(50) via a torque box(60). A first cross member(20) and a second cross member(30) are installed on the front and rear faces of the side sill. The rear end of a sub frame(10) forming an engine room is connected to the first cross member. A departure preventing bracket(70) is installed between the first cross member and the second cross member. Even if a shock over a specific value is applied to the sub frame in a head-on collision, the departure preventing bracket restrains the movement of the first cross member toward the second cross member.

Description

자동차용 차체구조{vehicle body}Vehicle body structure {vehicle body}

본 발명은 자동차용 차체구조에 관한 것으로서, 더욱더 상세하게는 엔진룸을 형성하고 있는 서브프레임에 충격하중이 가해지는 경우에도 제1크로스멤버가 변형되는 것이 억제되도록 하는 자동차용 차체구조에 관한 것이다.The present invention relates to a vehicle body structure, and more particularly, to a vehicle body structure for suppressing deformation of the first cross member even when an impact load is applied to the subframe forming the engine room.

종래 자동차용 차체구조는 도 1에 도시하고 있는 바와 같이, 사이드프레임(40)이 토크박스(60)에 의해 사이드실(50)과 연결되고, 상기 사이드실(50)의 전후면에는 제1크로스멤버(20)와 제2크로스멤버(30)가 소정의 간격을 두고 설치되며, 상기 제1크로스멤버(20)에는 엔진룸을 형성하는 서브프레임(Sub frame)(10)의 후단부가 연결되어 있다.In the conventional vehicle body structure as shown in Figure 1, the side frame 40 is connected to the side chamber 50 by the torque box 60, the first cross on the front and rear surfaces of the side chamber 50 The member 20 and the second cross member 30 are installed at predetermined intervals, and the first cross member 20 is connected to the rear end of the sub frame 10 forming the engine room. .

이러한 종래 자동차용 차체구조는 차량을 운행중 정면충돌사고등이 발생하여 엔진룸을 형성하고 있는 서브프레임(10)으로 충격하중이 가해지면, 상기 서브프레임(10)에 가해진 충격에너지가 1차적으로 제1크로스멤버(20)에서 흡수됨과 동시에 사이드프레임(40)으로 전달되고, 상기 사이드프레임(40)으로 전달된 충격에너지는 2차적으로 흡수됨과 동시에 토크박스(60)를 거쳐 사이드실(50)로 폭넓게 분산되고 있다.In such a conventional vehicle body structure, when an impact load is applied to a subframe 10 that forms an engine room due to a frontal collision accident or the like while driving a vehicle, the impact energy applied to the subframe 10 is primarily applied. At the same time as absorbed from the cross member 20 is delivered to the side frame 40, the impact energy delivered to the side frame 40 is secondarily absorbed and at the same time through the torque box 60 to the side chamber 50 It is widely distributed.

그러나 이러한 종래 자동차용 차체구조는 사이드프레임(40)에 일측단부가 결합된 제1크로스멤버(20)에 의해 서만 서브프레임(10)에 가해진 충격에너지를 흡수하게 됨으로서, 상기 서브프레임(10)에 일정치 이상의 충격하중이 가해지는 경우 제1크로스멤버(20)가 제2크로스멤버(20) 방향으로 이동되면서 과도한 변형이 발생하게 되어 차실에 탑승한 승원의 안전을 위협하게 되는 문제점이 있었다.However, such a conventional vehicle body structure absorbs the impact energy applied to the subframe 10 only by the first cross member 20 having one side end coupled to the side frame 40, thereby providing the subframe 10 with the subframe 10. When a shock load of more than a predetermined value is applied, the first cross member 20 is moved toward the second cross member 20, causing excessive deformation, thereby threatening the safety of the occupant in the cabin.

본 발명의 목적은 상기 종래와 같은 문제점을 해결하기 위해, 사이드프레임이 토크박스에 의해 사이드실과 연결되고, 상기 사이드실의 전후면에는 제1크로스멤버와 제2크로스멤버가 소정의 간격을 두고 설치되며, 상기 제1크로스멤버에는 엔진룸을 형성하는 서브프레임(Sub frame)의 후단부가 연결되어 지는 것에 있어서, 상기 제1크로스멤버와 제2크로스멤버 사이에 밀림방지용브라켓을 설치하여, 차량을 운행중 정면충돌사고등이 발생하여 서브프레임에 일정치 이상의 충격하중이 가해지는 경우에도 밀림방지용브라켓에 의해 제1크로스멤버가 제2크로스멤버 방향으로 이동되는 것이 억제됨으로서, 차실에 탑승한 승원의 안전성이 향상되도록 하는 자동차용 차체구조를 제공하는 데 있다.An object of the present invention, in order to solve the problem as described above, the side frame is connected to the side chamber by the torque box, the first cross member and the second cross member is installed at a predetermined interval on the front and rear surfaces of the side chamber When the rear end of the sub frame forming the engine room is connected to the first cross member, an anti-rolling bracket is installed between the first cross member and the second cross member to operate the vehicle. Even when a frontal collision accident occurs and a shock load of more than a certain level is applied to the subframe, the movement of the first cross member in the direction of the second cross member is suppressed by the anti-bracket to prevent the safety of the occupant in the cabin. It is to provide a vehicle body structure to be improved.

도 1은 종래 차체구조를 보인 개략도1 is a schematic view showing a conventional vehicle body structure

도 2는 본 발명의 차체구조를 보인 개략도2 is a schematic view showing a vehicle body structure of the present invention;

도 3은 본 발명의 밀림방지용브라켓을 보인 정면도Figure 3 is a front view showing the jungle prevention bracket of the present invention

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

10 : 서브프레임20 : 제1크로스멤버10: subframe 20: first cross member

30 : 제2크로스멤버40 : 사이드프레임30: second cross member 40: side frame

50 : 사이드실60 : 토크박스50: side seal 60: torque box

70 : 밀림방지용브라켓80 : 플레이트70: anti-roll bracket 80: plate

이하, 첨부된 도면에 의하여 본 발명의 그 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention with reference to the accompanying drawings in detail as follows.

본 발명의 자동차용 차체구조도 도 2에 도시하고 있는 바와 같이, 사이드프레임(40)이 토크박스(60)에 의해 사이드실(50)과 연결되고, 상기 사이드실(50)의 전후면에는 제1크로스멤버(20)와 제2크로스멤버(30)가 소정의 간격을 두고 설치되며, 상기 제1크로스멤버(20)에는 엔진룸을 형성하는 서브프레임(Sub frame)(10)의 후단부가 연결되어 지는 것은 종래와 같다.As shown in FIG. 2, the vehicle body structure of the present invention is connected to the side chamber 50 by the torque box 60, and is formed on the front and rear surfaces of the side chamber 50. One cross member 20 and the second cross member 30 are installed at predetermined intervals, and the first cross member 20 is connected to a rear end of a sub frame 10 forming an engine room. It is the same as before.

단, 본 발명은 상기 제1크로스멤버(20)와 제2크로스멤버(30) 사이에 밀림방지용브라켓(70)이 설치됨을 그 기술적 구성상의 기본 특징으로 한다.However, the present invention has the basic feature of the technical configuration that the anti-rolling bracket 70 is installed between the first cross member 20 and the second cross member 30.

한편, 상기 밀림방지용브라켓(70)은 도 3에 도시하고 있는 바와 같이, 지름이 50~60인 중공의 파이프로 구성함이 바람직함을 밝혀 둔다.On the other hand, the anti-roll bracket 70 is shown in Figure 3, it turns out that it is preferable to configure a hollow pipe having a diameter of 50 ~ 60.

또한, 상기 밀림방지용브라켓(70)의 좌우 양측단부에는 볼트체결에 의해 제1크로스멤버(20)와 제2크로스멤버(30)에 설치가 이루어지도록 하는 원판타입의 플레이트(80)를 설치하여, 상기 밀림방지용브라켓(70)을 기존차량에도 장착할 수 있도록 함을 밝혀 둔다.In addition, by installing a disk-type plate 80 to be installed on the first cross member 20 and the second cross member 30 by fastening bolts on the left and right both ends of the anti-roll bracket 70, It turns out that the jungle prevention bracket 70 can be mounted on an existing vehicle.

이와 같이 구성되는 본 발명은 차량을 운행중 정면충돌사고등이 발생하여 엔진룸을 형성하고 있는 서브프레임(10)으로 일정치이상의 충격충격하중이 가해지면, 상기 서브프레임(10)에 가해진 충격에너지가 1차적으로 제1크로스멤버(20)에서 흡수함과 동시에 밀림방지용브라켓(70)으로 전달하고, 2차적으로 밀림방지용브라켓(70)에서 충격에너지를 흡수함과 동시에 제2크로스멤버(30)로 전달하며, 3차적으로 제2크로스멤버(30)에서 충격에너지를 흡수함과 동시에 사이드프레임(40)과 사이드실(50)을 통해 폭넓은 분산이 이루어지게 된다.According to the present invention configured as described above, when an impact impact load of a predetermined value or more is applied to a subframe 10 that forms an engine room due to a front collision accident or the like while driving a vehicle, the impact energy applied to the subframe 10 is Firstly absorbed by the first cross member 20 and at the same time delivered to the jungle prevention bracket 70, secondly absorbed impact energy from the jungle prevention bracket 70 and at the same time to the second cross member 30 It transmits and absorbs the impact energy in the second cross member 30, and at the same time, a wide dispersion is achieved through the side frame 40 and the side chamber 50.

따라서 이러한 본 발명은 차량을 운행중 정면충돌사고등이 발생하여 서브프레임(10)에 일정치 이상의 충격하중이 가해지는 경우에도 밀림방지용브라켓(70)에 의해 제1크로스멤버(20)가 제2크로스멤버(20) 방향으로 이동되는 것이 억제 됨으로서, 차실에 탑승한 승원의 안전성이 향상되도록 하는 효과가 있다.Therefore, in the present invention, the first cross member 20 is the second cross by the anti-roll bracket 70 even when the impact load of a predetermined value or more is applied to the subframe 10 due to the occurrence of a frontal collision accident, etc. Since the movement in the direction of the member 20 is suppressed, there is an effect to improve the safety of the occupant in the cabin.

이상에서 살펴본 바와 같이 본 발명은 사이드프레임이 토크박스에 의해 사이드실과 연결되고, 상기 사이드실의 전후면에는 제1크로스멤버와 제2크로스멤버가소정의 간격을 두고 설치되며, 상기 제1크로스멤버에는 엔진룸을 형성하는 서브프레임(Sub frame)의 후단부가 연결되어 지는 것에 있어서, 상기 제1크로스멤버와 제2크로스멤버 사이에 밀림방지용브라켓을 설치하여, 차량을 운행중 정면충돌사고등이 발생하여 서브프레임에 일정치 이상의 충격하중이 가해지는 경우에도 밀림방지용브라켓에 의해 제1크로스멤버가 제2크로스멤버 방향으로 이동되는 것이 억제 됨으로서, 차실에 탑승한 승원의 안전성이 향상되도록 하는 매우 유용한 발명이다.As described above, in the present invention, the side frame is connected to the side chamber by the torque box, and the first cross member and the second cross member are installed at predetermined intervals on the front and rear surfaces of the side chamber, and the first cross member In the rear end of the sub-frame (Sub frame) forming the engine room is connected, the anti-rolling bracket is installed between the first cross member and the second cross member, the front collision accident occurs while driving the vehicle Even when a certain impact load or more is applied to the subframe, the movement of the first cross member in the direction of the second cross member is suppressed by the anti-braking bracket, thereby improving the safety of the occupant in the cabin. .

Claims (3)

사이드프레임(40)이 토크박스(60)에 의해 사이드실(50)과 연결되고, 상기 사이드실(50)의 전후면에는 제1크로스멤버(20)와 제2크로스멤버(30)가 소정의 간격을 두고 설치되며, 상기 제1크로스멤버(20)에는 엔진룸을 형성하는 서브프레임(Sub frame)(10)의 후단부가 연결되어 지는 것에 있어서, 상기 제1크로스멤버(20)와 제2크로스멤버(30) 사이에 밀림방지용브라켓(70)이 설치됨을 특징으로 하는 자동차용 차체구조.The side frame 40 is connected to the side chamber 50 by the torque box 60, and the first cross member 20 and the second cross member 30 are formed on the front and rear surfaces of the side chamber 50. Installed at intervals, the first cross member 20 is connected to the rear end of the sub-frame (Sub frame) 10 forming the engine room, the first cross member 20 and the second cross Vehicle body structure, characterized in that the anti-roll bracket 70 is installed between the members (30). 청구항 1에 있어서, 상기 밀림방지용브라켓(70)은 지름이 50~60인 중공의 파이프로 구성됨을 특징으로 하는 자동차용 차체구조.The vehicle body structure according to claim 1, wherein the anti-roll bracket 70 is composed of a hollow pipe having a diameter of 50 to 60. 청구항 1에 있어서, 상기 밀림방지용브라켓(70)의 좌우 양측단부에는 볼트체결에 의해 제1크로스멤버(20)와 제2크로스멤버(30)에 설치가 이루어지도록 하는 원판타입의 플레이트(80)가 설치됨을 특징으로 하는 자동차용 차체구조.The plate-type plate 80 of claim 1, wherein the plate-shaped plate 80 is installed at the first cross member 20 and the second cross member 30 by bolts at both left and right ends of the anti-roll bracket 70. Car body structure, characterized in that installed.
KR10-2000-0075794A 2000-12-13 2000-12-13 vehicle body KR100373655B1 (en)

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Application Number Priority Date Filing Date Title
KR10-2000-0075794A KR100373655B1 (en) 2000-12-13 2000-12-13 vehicle body

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KR100373655B1 KR100373655B1 (en) 2003-02-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030041621A (en) * 2001-11-21 2003-05-27 기아자동차주식회사 Chassis Frame Reinforcement Structure of Passenger Car
KR20090023320A (en) * 2007-08-30 2009-03-04 티센크룹 니로스타 게엠베하 Device and method for the casting of strips from a metal melt, in particular a steel melt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030041621A (en) * 2001-11-21 2003-05-27 기아자동차주식회사 Chassis Frame Reinforcement Structure of Passenger Car
KR20090023320A (en) * 2007-08-30 2009-03-04 티센크룹 니로스타 게엠베하 Device and method for the casting of strips from a metal melt, in particular a steel melt

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Publication number Publication date
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