KR920003168Y1 - Cross member connecting structure for vehicles - Google Patents

Cross member connecting structure for vehicles Download PDF

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Publication number
KR920003168Y1
KR920003168Y1 KR2019890020262U KR890020262U KR920003168Y1 KR 920003168 Y1 KR920003168 Y1 KR 920003168Y1 KR 2019890020262 U KR2019890020262 U KR 2019890020262U KR 890020262 U KR890020262 U KR 890020262U KR 920003168 Y1 KR920003168 Y1 KR 920003168Y1
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South Korea
Prior art keywords
cross member
side wall
flange
cross
side member
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KR2019890020262U
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Korean (ko)
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KR910011427U (en
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김호명
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기아자동차 주식회사
이범창
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Priority to KR2019890020262U priority Critical patent/KR920003168Y1/en
Publication of KR910011427U publication Critical patent/KR910011427U/en
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Publication of KR920003168Y1 publication Critical patent/KR920003168Y1/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
    • B62D21/08—Understructures, i.e. chassis frame on which a vehicle body may be mounted built up with interlaced cross members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/12—Production or manufacturing of vehicle parts
    • B60Y2410/124—Welded parts

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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

내용 없음.No content.

Description

자동차의 크로스멤버접합구조Cross member joint structure of automobile

제1도는 본 고안의 분해 사시도.1 is an exploded perspective view of the present invention.

제2도는 제1도의 A-A선 조립측단면도.2 is a cross-sectional view taken along line A-A of FIG.

제3도는 제2도의 부분우측면도.3 is a partial right side view of FIG.

제4도는 종래 기술의 조립측단면도.4 is an assembly side cross-sectional view of the prior art.

제5도는 다른 종래 기술의 조립측단면도이다.5 is another assembled side cross-sectional view of the prior art.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 크로스멤버 2 : 사이드멤버1: Cross Member 2: Side Member

3, 3 : 상부플랜지 4, 4' : 측벽부3, 3: upper flange 4, 4 ': side wall

4a, 4a' : 플랜지 5 : 바닥부4a, 4a ': flange 5: bottom

5a : 플랜지 6, 6' : 측벽부5a: flange 6, 6 ': side wall

6a : 플랜지 7, 7' : 상부플랜지6a: Flange 7, 7 ': Upper flange

8 : 절개부 9 : 섀시멤버8: incision 9: chassis member

10 : 보울트10: bolt

본 고안은 자동차의 크로스멤버접합구조에 관한 것으로, 특히 사이드멤버에 접합되는 크로스멤버의 구조가 간단하면서도 접합부의 강성을 높여줄 수 있도록 한 자동차의 크로스멤버접합구조에 관한 것이다.The present invention relates to a cross member joint structure of an automobile, and more particularly, to a cross member joint structure of a vehicle that allows the structure of the cross member joined to the side member to be simple and to increase the rigidity of the joint.

일반적으로 자동차 섀시프레임에서 자동차의 길이방향을 따라 양쪽으로 뻗은 사이드멤버(side member)에는 이들 사이에 소정간격을 두고 다수개의 크로스멤버(cross member)가 접합되어, 양쪽 사이드멤버를 일정간격으로 유지시켜 주면서 서로 지지되게 함으로써, 승차감에 주요영향을 미치는 섀시프레임의 비틀림강성을 높여 주도록 되어 있는 바, 종래 사이드멤버와 크로스멤버의 접합구조로서는 제4도 및 제5도에 도시된 바와 같은 구조로 된 것이 있다.In general, a plurality of cross members are joined to side members extending in both directions along the longitudinal direction of the car in a car chassis frame with a predetermined distance therebetween, thereby maintaining both side members at a constant interval. By supporting each other while giving the torsional rigidity of the chassis frame, which has a major influence on the ride comfort, the conventional side member and cross member joint structure as shown in Figures 4 and 5 have.

여기서 제4도에 도시된 접합구조는, 크로스멤버(20)의 상부선단과 사이드멤버(21)의 플랜지(21a)가 용접되고, 상기 크로스멤버(20)의 하부와 사이드멤버(21)의 하단사이에 연결플레이트(22)가 고정연결되며, 상기 사이드멤버(21)의 하부에 현가장치(도시안됨)을 장착시키기 위한 섀시멤버(23)를 부착하는 경우, 접합부위의 강도를 보강해주기 위해 상기 사이드멤버(21)의 내부하단에 보강부재(24)를 접합시킨 구조로 되어있는바, 이러한 구조로 된 접합구조는 우선 구성부품이 복잡할 뿐만아니라 제작단가가 상승하게 되고, 또 상기 연결플레이트(22)와 사이드멤버(21)사이의 접합면적이 작기 때문에 그 접합강도가 충분치 못하다는 결점이 있다.In the joint structure shown in FIG. 4, the upper end of the cross member 20 and the flange 21a of the side member 21 are welded, and the lower part of the cross member 20 and the lower end of the side member 21. The connecting plate 22 is fixedly connected therebetween, and when the chassis member 23 for attaching the suspension device (not shown) is attached to the lower side of the side member 21, the strength of the joint is increased. The reinforcing member 24 is bonded to the inner lower end of the side member 21, and the joining structure having such a structure is not only complicated in components but also increases in manufacturing cost, and the connecting plate ( There is a drawback that the bonding strength is insufficient because the bonding area between the 22 and the side members 21 is small.

이러한 문제를 개선시키기 위해 일본국 실용신안공개 소 57-98975호로 제5도에 도시된 바와같은 접합구조가 제안되어 있는 바, 즉 사이드멤버(30)의 한쪽 측벽이 절개되어 바깥으로 절곡되면서 개구부와 이 개구부의 양쪽에 1경사면부(31)가 각각 형성되고, 상기 개구부를 통해 삽입되는 크로스멤버(32)의 양쪽 선단 측벽은 바깥쪽으로 확장되어 상기 사이드멤버(30)의 제1경사면부(31)와 대응되는 제2경사면부(33)로 형성됨과 더불어 제2경사면부(33)의 바깥쪽으로 측면부(34)가 형성되며, 이 측면부(34)의 선단이 절곡되어 플랜지부(35)로 형성된 구조로 되어, 상기 제1, 2경사면부(31, 33)사이와, 상기 플랜지부(35)와 사이드멤버(30)의 반대쪽 측벽(36)사이 및, 크로스멤버(32)의 바닥부(37)와 사이드멤버(30)의 바닥부(38)사이를 용접으로 접합시켜주도록 되어 있다.In order to improve this problem, Japanese Utility Model Publication No. 57-98975 proposes a joining structure as shown in FIG. 5, that is, one side wall of the side member 30 is cut and bent outwards. One inclined surface portion 31 is formed on both sides of the opening, and both front end sidewalls of the cross member 32 inserted through the opening extend outwards to form the first inclined surface portion 31 of the side member 30. In addition to the second inclined surface portion 33 corresponding to the side portion 34 is formed to the outside of the second inclined surface portion 33, the end of the side portion 34 is bent to form a flange portion 35 Between the first and second inclined surface portions 31 and 33, between the flange portion 35 and the side wall 36 opposite the side member 30, and the bottom portion 37 of the cross member 32. And the bottom portion 38 of the side member 30 by welding.

그런데 상기와 같은 접합구조는, 크로스멤버(32)의 바닥부(37) 면적이 사이드멤버(30)속으로 삽입되는 부분과 삽입되지 않는 부분이 일정하지 않고 앞, 뒷쪽이 서로 달라야하며, 이렇게 서로 폭이 다른 바닥부(37)의 각 측벽을 이 바닥부(37)와 일체적으로 수직절곡성형시켜야 하기 때문에 구조가 복잡하여 제작하기가 까다로울 뿐만아니라 상기 크로스멤버(32)와 사이드멤버(30)의 바닥부(37, 38) 수평높이가 거의 같을 경우에만 적용시킬 수가 있게 되고, 또 상기 제1, 2경사면부(31, 33)의 접합부를 이루는 사이드멤버(30)의 절취부가 강성취약부가 되는 등의 결점이 있다.By the way, the junction structure as described above, the portion of the bottom portion 37 of the cross member 32 is inserted into the side member 30 and the non-inserted portion is not constant, and the front and rear sides should be different from each other. Since each sidewall of the bottom portion 37 having different widths must be vertically bent integrally with the bottom portion 37, the structure is complicated and difficult to manufacture, and the cross member 32 and the side member 30 are formed. It is possible to apply only when the horizontal heights of the bottom portions 37 and 38 are substantially the same, and the cutout portions of the side members 30 forming the joint portions of the first and second inclined surface portions 31 and 33 become rigid weak portions. There are drawbacks.

이에 본 고안은 상기와 같은 제반 결점을 해결하기 위해 안출된 것으로, 크로스 멤버의 바닥면이 전체적으로 일정간격을 유지하면서 선단쪽 측벽부가 소정각도로 벌어지게 형성됨과 더불어 이 측벽부와 바닥부에 플랜지가 각각 절곡성형되고, 사이드멤버의 한쪽 측벽부에는 상기 크로스멤버의 측벽부 및 바닥부가 끼워지도록 사다리꼴 형상의 절개부가 형성됨과 더불어 이 절개부의 바닥부에 플랜지가 절곡형성된 구조로 되어, 상기 크로스멤버의 선단부를 사이드멤버의 절개부에 끼운 상태에서 이 크로스멤버의 선단플랜지를 사이드멤버의 다른쪽 측벽부에 접촉시켜 그 접촉면을 용접시키는 한편, 사이드멤버의 절개부에 형성된 플랜지를 크로스멤버의 바닥부에 용접시킨 구조함으로써, 간단한 구조이면서 접합강도가 극히 우수한 접합부위를 얻을 수 있도록 된 자동차의 크로스 맴버접합구조를 제공함에 그 목적이 있다.The present invention has been devised to solve the above-mentioned shortcomings, and the bottom side of the cross member is formed to be spaced at a predetermined angle with the bottom side of the cross member maintained at a predetermined interval as a whole. Each of the side members of the side member is formed by bending, and a trapezoidal incision is formed so that the side wall and the bottom of the cross member are fitted, and a flange is bent at the bottom of the incision. Is inserted into the cutout of the side member, the front flange of the crossmember is brought into contact with the other side wall of the side member to weld the contact surface, while the flange formed at the cutout of the side member is welded to the bottom of the crossmember. In this way, a simple structure and excellent bonding strength can be obtained. Its purpose is to provide a cross member joint structure of a vehicle that can be used.

이하 본 고안을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 고안은 제1도 내지 제3도에 도시된 바와같이, 크로스멤버(1)와 사이드멤버(2)를 서로 접합하는 구조에 관한 것으로, 상기 크로스멤버(1)의 양쪽 상부면에 길이방향으로 상부 플랜지(3, 3')가 형성되고, 이 크로스멤버(1)의 선단 양쪽 측벽부(4, 4')가 수직평면에 대해 소정각도로 벌어지도록 경사지게 형성되며, 이 크로스멤버(1)의 측벽부(4, 4') 및 바닥부(5)의 선단이 각각 90각도로 절곡되어 플랜지(4a, 4a', 5a)를 형성시키는 한편, 상기 사이드멤버(2)의 양쪽 측벽부(6, 6')의 상부면에도 각각 상부플랜지(7, 7')가 형성되고, 한쪽 측벽부(6)에는 상기 크로스멤버(1)의 선단이 관통되게 설치되도록 사다리꼴 형상의 절개부(8)가 형성되며, 이 절개부(8)의 바닥면에는 바깥쪽을 향해 소정길이의 플랜지(6a)가 절곡형성된 구조로 되어 있다.The present invention relates to a structure in which the cross member 1 and the side member 2 are bonded to each other, as shown in FIGS. 1 to 3, in the longitudinal direction on both upper surfaces of the cross member 1. The upper flanges 3 and 3 'are formed, and both side wall portions 4 and 4' of the front end of the cross member 1 are formed to be inclined so as to be opened at a predetermined angle with respect to the vertical plane. The tip ends of the side wall portions 4, 4 'and the bottom portion 5 are each bent at an angle of 90 degrees to form flanges 4a, 4a', 5a, while the side wall portions 6 of the side members 2, Upper flanges 7 and 7 'are also formed on the upper surface of 6'), and trapezoidal cutouts 8 are formed in one side wall portion 6 so that the front end of the cross member 1 is installed therethrough. The bottom surface of the cutout portion 8 has a structure in which a flange 6a of a predetermined length is bent outward.

다음 상기와 같은 구조로 된 본 고안의 접합작업을 설명하면, 먼저 크로스멤버(1)의 선단부를 사이드멤버(2)에 한쪽 측벽부(6)에 형성된 절개부(8)에 끼워, 크로스멤버(1)의 바닥부(5)가 절개부(8)의 바닥면에 얹히게 한 상태에서 크로스멤버(1)의 플랜지(4a, 4a', 5a)'를 사이드 멤버(2)의 다른쪽 측벽부(6')에 밀착시켜 상기 플랜지(4a, 4a', 5a)와 측벽부(6')의 접촉면을 용접으로 고정결합한다. 그 다음 사이드멤버(2)의 절개부(8)로 부터 돌출된 플랜지(6a)를 크로스멤버(1)의 바닥부(5)에 용접으로 고정결합시키면 본 고안 크로스멤버의 접합구조의 접합작업이 완료되게 된다.Next, the joining operation of the present invention having the above structure will be described. First, the front end portion of the cross member 1 is inserted into the cutout portion 8 formed at one side wall portion 6 in the side member 2, and the cross member ( Flanges 4a, 4a ', 5a' of the crossmember 1 are mounted on the bottom surface of the incision 8 at the bottom 5 of the side member 2 on the other side wall of the side member 2. In close contact with 6 ', the contact surfaces of the flanges 4a, 4a' and 5a and the side wall portion 6 'are fixed by welding. Then, by welding the flange 6a protruding from the cutout 8 of the side member 2 to the bottom 5 of the cross member 1 by welding, the joining operation of the joint structure of the cross member of the present invention is performed. Will be completed.

따라서 본 고안 접합구조는, 비스듬히 형성된 선단 측벽부(4, 4')를 갖춘 크로스멤버(1)가 사이드멤버(2)의 절개부(8) 바닥면에 얹혀져 지지된 상태에서 크로스멤버(1)의 프랜지(4a, 4a', 5a)가 사이드멤버(2)의 측벽부(6')에 고정결합되고, 또 사이드멤버(2)의 절개부(8)로부터 돌출된 플랜지(6a)가 크로스멤버(1)의 바닥부(5)에 고정됨으로해서, 크로스멤버(1)와 사이드멤버(2) 사이의 접촉면적이 증대되어 이에 용접 부위를 많게 함으로써 충분한 접합강도가 확보되게 된다.Therefore, in the joint structure of the present invention, the cross member 1 having the obliquely formed tip side wall portions 4 and 4 'is placed on the bottom surface of the cutout portion 8 of the side member 2 and supported. Flanges 4a, 4a ', and 5a of the side members 2 are fixedly coupled to the side walls 6' of the side members 2, and the flanges 6a protruding from the cutouts 8 of the side members 2 are cross members. By being fixed to the bottom part 5 of (1), the contact area between the cross member 1 and the side member 2 is increased, and sufficient welding strength is ensured by increasing the welding site.

이에 따라 이 사이드멤버(2)의 하단에 현가장치(도시안됨)가 장착된 섀시멤버(9)가 보울트(10)로써 연결되더라도 이를 충분히 지지할 수 있게 될 뿐만 아니라, 차량의 주행중 발생되는 진동등에 의해 섀시 프레임이 비틀림하중이 가해지더라도 이를 흡수하여 승차감을 향상시킬 수 있도록 되어 있다.Accordingly, even if the chassis member 9 equipped with the suspension device (not shown) at the bottom of the side member 2 is connected with the bolt 10, it is not only able to sufficiently support it, but also to vibrations generated during driving of the vehicle. As a result, even if the chassis frame is subjected to torsional load, the chassis frame is absorbed to improve the riding comfort.

이상의 설명에서와 같이, 본 고안은 바닥부(5)의 폭은 일정하면서 측벽부(4, 4')가 소정각도로 경사지게 절곡 형성되고 그 선단에 플랜지(4a, 4a')가 형성됨과 더불어, 상기 바닥부(5)에 플랜지(5a)가 형성된 크로스멤버(1)가 사이드멤버(2)에 형성된 절개부(8)의 바닥면에 얹혀져 지지되고, 상기 플랜지(4a, 4a', 5a)들이 사이드멤버(2)의 측벽부(6')에 용접됨과 더불어, 사이드멤버(2)의 측벽부(6)에 형성된 플랜지(6a)가 크로스멤버(1)의 바닥부(5)에 용접된 구조로 되어, 크로스멤버(1)와 사이드멤버(2) 사이의 접합부위 면적이 넓어지면서 이에 용접부위를 증대시킬 수 있도록 되어 접합강도가 충분히 확보되게 되고, 이에 따라 차량의 섀시프레임의 강도를 보강할 수 있을 뿐만아니라 승차감을 향상시킬 수 있는 효과가 있다.As described above, the present invention, while the width of the bottom portion 5 is constant, the side wall portions 4, 4 'is bent to be inclined at a predetermined angle, and the flanges 4a, 4a' are formed at the front end thereof, The cross member 1 having the flange 5a formed on the bottom portion 5 is supported on the bottom surface of the cutout 8 formed on the side member 2, and the flanges 4a, 4a 'and 5a are supported. In addition to being welded to the side wall portion 6 ′ of the side member 2, the flange 6a formed on the side wall portion 6 of the side member 2 is welded to the bottom portion 5 of the cross member 1. When the area of the joint between the cross member 1 and the side member 2 is enlarged, the welding area can be increased, thereby sufficiently securing the joint strength, thereby reinforcing the strength of the chassis frame of the vehicle. Not only can it improve the riding comfort.

Claims (1)

크로스멤버(1)와 사이드멤버(2)를 용접으로 접합시키도록 된 자동차의 크로스멤버접합구조에 있어서, 상기 크로스멤버(1)의 바닥부(5)폭이 일정하면서 그 선단 측벽부(4, 4')가 소정각도로 경사지게 형성되고, 상기 사이드멤버(2)의 한쪽 측벽부(6)에는 상기 크로스멤버(1)의 선단이 관통삽입될 수 있도록 상기 선단측벽부(4, 4')의 경사각도와 부합하는 사다리꼴 형상의 절개부(8)가 형성됨과 더불어, 이 절개부(8)의 바닥면에는 바깥쪽으로 돌출된 플랜지(6a)가 형성되어, 상기 크로스멤버(1)의 선단부가 사이드멤버(2)의 절개부(8) 바닥면에 안착된 상태에서 크로스멤버(1)의 플랜지(4a, 4a', 5a)가 사이드멤버(2)의 측벽부(6')에 고정결합되고, 절개부(8)의 플랜지(6a)가 크로스멤버(1)의 바닥부(5)하면에 고정결합된 것을 특징으로 하는 자동차의 크로스멤버접합구조.In the cross member joining structure of an automobile in which the cross member 1 and the side member 2 are welded together, the front side wall portion 4, while the width of the bottom portion 5 of the cross member 1 is constant, 4 ') is formed to be inclined at a predetermined angle, and one side wall portion 6 of the side member 2 is formed so that the front end of the cross member 1 can be inserted therethrough. A trapezoidal cutout portion 8 corresponding to the inclination angle is formed, and a flange 6a protruding outward is formed on the bottom surface of the cutout portion 8, so that the front end portion of the crossmember 1 is a side member. The flanges 4a, 4a ', and 5a of the cross member 1 are fixedly coupled to the side wall portion 6' of the side member 2 in a state of being seated on the bottom surface of the cutout portion 8 of (2). Cross member joining structure of a vehicle, characterized in that the flange (6a) of the part (8) is fixedly coupled to the bottom surface (5) of the cross member (1).
KR2019890020262U 1989-12-28 1989-12-28 Cross member connecting structure for vehicles KR920003168Y1 (en)

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KR920003168Y1 true KR920003168Y1 (en) 1992-05-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990015088A (en) * 1997-08-01 1999-03-05 정몽규 Cross member reinforcement structure of vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990015088A (en) * 1997-08-01 1999-03-05 정몽규 Cross member reinforcement structure of vehicle

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KR910011427U (en) 1991-07-29

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