KR100649551B1 - Side frame of a vehicle - Google Patents

Side frame of a vehicle Download PDF

Info

Publication number
KR100649551B1
KR100649551B1 KR1020040109099A KR20040109099A KR100649551B1 KR 100649551 B1 KR100649551 B1 KR 100649551B1 KR 1020040109099 A KR1020040109099 A KR 1020040109099A KR 20040109099 A KR20040109099 A KR 20040109099A KR 100649551 B1 KR100649551 B1 KR 100649551B1
Authority
KR
South Korea
Prior art keywords
members
side frame
bent portion
vehicle side
vehicle
Prior art date
Application number
KR1020040109099A
Other languages
Korean (ko)
Other versions
KR20060070586A (en
Inventor
노승강
최보영
Original Assignee
서진산업 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.)
Filing date
Publication date
Application filed by 서진산업 주식회사 filed Critical 서진산업 주식회사
Priority to KR1020040109099A priority Critical patent/KR100649551B1/en
Publication of KR20060070586A publication Critical patent/KR20060070586A/en
Application granted granted Critical
Publication of KR100649551B1 publication Critical patent/KR100649551B1/en

Links

Images

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
    • B62D21/02—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
    • 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
    • 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
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units

Landscapes

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

Abstract

본 발명은 사이드 프레임 부재를 하이드로포밍공정으로 성형한 뒤 끝단을 절단하여 용접하는 차량용 사이드 프레임에 관한 것이다. 이를 위해, 제 1, 2 중간부재(22, 25), 제 1, 2 전방부재(23, 26), 제 1, 2 후방부재(21, 24) 및 복수개의 크로스부재(30)로 이루어지는 차량용 사이드 프레임에 있어서, 양단에 하향 절곡부(50)를 갖는 제 1, 2 중간부재(22, 24); 일단에 하향 절곡부(50)와 형상맞춤 가능한 상향 절곡부(42)를 갖고, 상향 절곡부(42)의 단부에는 제 1, 2 중간부재(22, 24)가 삽입될 정도의 확장부(40)를 갖는 제 1, 2 전방부재(23, 26); 일단에 하향 절곡부(50)와 형상맞춤 가능한 상향 절곡부(42)를 갖고, 상향 절곡부(42)의 단부에는 제 1, 2 중간부재(22, 24)가 삽입될 정도의 확장부(40)를 갖는 제 1, 2 후방부재(21, 24); 및 제 1 중간부재(22)와 제 1 전방부재(23) 사이의 접합부위, 제 1 중간부재(22)와 제 1 후방부재(21) 사이의 접합부위, 제 2 중간부재(25)와 제 2 전방부재(26) 사이의 접합부위, 제 2 중간부재(25)와 제 2 후방부재(24) 사이의 접합부위에 형성된 용접부(60)가 제공된다.The present invention relates to a vehicle side frame that is formed by cutting the end frame member by a hydroforming process and then cutting the end. To this end, a vehicle side composed of first and second intermediate members 22 and 25, first and second front members 23 and 26, first and second rear members 21 and 24, and a plurality of cross members 30. A frame comprising: first and second intermediate members (22, 24) having downward bent portions (50) at both ends; An extension portion 40 having a downward bent portion 50 and an upwardly bent portion 42 that can be conformed to one end, and the first and second intermediate members 22 and 24 are inserted into an end portion of the upwardly bent portion 42. First and second front members (23, 26) having; An extension portion 40 having a downward bent portion 50 and an upwardly bent portion 42 that can be conformed to one end, and the first and second intermediate members 22 and 24 are inserted into an end portion of the upwardly bent portion 42. First and second rear members (21, 24) having; And a joint portion between the first intermediate member 22 and the first front member 23, a joint portion between the first intermediate member 22 and the first rear member 21, and a second intermediate member 25 and the first intermediate member 22. A weld 60 formed at the junction between the second front member 26 and the junction between the second intermediate member 25 and the second rear member 24 is provided.

중간부재, 전방부재, 후방부재, 크로스부재, 사이드 프레임, 차량Middle member, front member, rear member, cross member, side frame, vehicle

Description

차량용 사이드 프레임{Side frame of a vehicle}Side frame of a vehicle

도 1은 종래기술에 따른 차량용 사이드 프레임 부재가 1차적으로 용접되어 준비된 상태를 나타내는 사시도,1 is a perspective view showing a state in which a vehicle side frame member according to the prior art is primarily welded and prepared;

도 2는 도 1에 도시된 사이드 프레임 부재(10)에 크로스부재(30)를 용접한 상태를 도시한 사시도,2 is a perspective view showing a state in which the cross member 30 is welded to the side frame member 10 shown in FIG.

도 3은 본 발명에 따른 차량용 사이드 프레임에서 사이드 프레임 부재가 용접된 상태를 나타내는 사시도,3 is a perspective view showing a state in which a side frame member is welded in a vehicle side frame according to the present invention;

도 4는 도 3중 A-부분의 확대도,4 is an enlarged view of portion A- in FIG. 3;

도 5는 도 4에 도시된 A-부분의 분해사시도이다.FIG. 5 is an exploded perspective view of the A-part shown in FIG. 4. FIG.

* 주요 도면 부호의 설명 *Explanation of the Main References

10 : (종래기술)사이드 프레임 부재,10: (prior art) side frame member,

11 ; (종래기술)제 1 후방부재,11; (Prior Art) The first rear member,

12 : (종래기술)제 1 중간부재,12: (prior art) first intermediate member,

13 : (종래기술)제 1 전방부재,13 (prior art) the first front member,

14 : (종래기술)제 2 후방부재,14 (prior art) the second rear member,

15 : (종래기술)제 2 중간부재,15: (prior art) the second intermediate member,

16 : (종래기술)제 2 전방부재,16: (prior art) the second front member,

20 : 사이드 프레임 부재,20: side frame member,

21 ; 제 1 후방부재,21; A first rear member,

22 : 제 1 중간부재,22: the first intermediate member,

23 : 제 1 전방부재,23: first front member,

24 : 제 2 후방부재,24: second rear member,

25 : 제 2 중간부재,25: second intermediate member,

26 : 제 2 전방부재,26: second front member,

30a, 30b, 30c : 크로스부재,30a, 30b, 30c: cross member,

40 : 확장부,40: extension part,

42 : 상향 절단부,42: upward cut portion,

50 : 하향 절단부,50: downward cut,

60 : 용접부,60: weld,

C : 마진.C: Margin.

본 발명은 차량용 사이드 프레임에 관한 것으로, 더욱 상세하게는 사이드 프레임 부재를 하이드로포밍공정으로 성형한 뒤 끝단을 절단하여 용접하는 차량용 사이드 프레임에 관한 것이다.The present invention relates to a vehicle side frame, and more particularly, to a vehicle side frame for molding the side frame member by a hydroforming process and cutting the end.

일반적으로, 차량의 하부에는 한쌍의 평행한 사이드 프레임 부재가 설치되 며, 이러한 사이드 프레임 부재에 크로스 부재를 포함한 몇가지 부품들이 함께 조립된다.In general, a pair of parallel side frame members is installed at the bottom of the vehicle, and several parts including the cross member are assembled together in the side frame members.

도 1은 종래기술에 따른 차량용 사이드 프레임 부재가 1차적으로 용접되어 준비된 상태를 나타내는 사시도이고, 도 2는 도 1에 도시된 사이드 프레임 부재(10)에 크로스부재(30)를 용접한 상태를 도시한 사시도이다. 1 is a perspective view illustrating a state in which a vehicle side frame member according to the prior art is primarily welded and prepared, and FIG. 2 illustrates a state in which the cross member 30 is welded to the side frame member 10 illustrated in FIG. 1. One perspective view.

도 1 및 도 2에 도시된 바와 같이, 사이드 프레임 부재(10)는 제 1, 2 중간부재(12, 15), 제 1, 2 전방부재(13, 16), 제 1, 2 후방부재(11, 14) 및 크로스부재(30) 등으로 구성된다.As shown in FIGS. 1 and 2, the side frame member 10 includes the first and second intermediate members 12 and 15, the first and second front members 13 and 16, and the first and second rear members 11. And 14) and cross member 30.

제 1, 2 중간부재(12, 15)는 상호 평행하게 위치하며, 크로스 부재(30)의 길이 정도로 이격되도록 설치된다. 이러한 중간부재(12, 15)는 단면이 "ㄷ"자인 형강을 용접하여 중공 사각형상으로 제작하며, 재질은 철재이다.The first and second intermediate members 12 and 15 are disposed in parallel to each other and are installed to be spaced apart by the length of the cross member 30. The intermediate members 12 and 15 are manufactured in a hollow rectangular shape by welding a section steel having a cross-section of the letter “c”, and the material is steel.

제 1, 2 중간부재(12, 15)의 일단에는 제 1, 2 전방부재(13, 16)가 각각 용접된다. 즉, 제 1 중간부재(12)의 일단에는 제 1 전방부재(13)가 용접되고, 제 2 중간부재(15)의 일단에는 제 2 전방부재(16)가 용접된다. 아울러, 제 1, 2 중간부재(12, 15)의 타단에는 제 1, 2 후방부재(11, 14)가 각각 용접된다. 즉, 제 1 중간부재(12)의 타단에는 제 1 후방부재(11)가 용접되고, 제 2 중간부재(15)의 타단에는 제 2 후방부재(14)가 용접된다. First and second front members 13 and 16 are welded to one end of the first and second intermediate members 12 and 15, respectively. That is, the first front member 13 is welded to one end of the first intermediate member 12, and the second front member 16 is welded to one end of the second intermediate member 15. In addition, the first and second rear members 11 and 14 are welded to the other ends of the first and second intermediate members 12 and 15, respectively. That is, the first rear member 11 is welded to the other end of the first intermediate member 12, and the second rear member 14 is welded to the other end of the second intermediate member 15.

이와 같이 용접되면, 제 1 전방부재(13), 제 1 중간부재(12) 및 제 1 후방부재(11)가 일체로 되고, 제 2 전방부재(16), 제 2 중간부재(15) 및 제 2 후방부재(14)가 일체로 된다. 이와 같은 상태에서 도 2에 도시된 바와 같이 가로방향으로 다수의 크로스 부재(30)를 용접함으로서 완성된다.When welding in this way, the first front member 13, the first intermediate member 12 and the first rear member 11 are integrated, the second front member 16, the second intermediate member 15 and the first 2 rear member 14 is integrated. In this state, as shown in FIG. 2, the plurality of cross members 30 are welded in the horizontal direction.

그러나, 도 1 및 도 2에 도시된 바와 같은 종래의 용접방법에 의할 경우, 각 부재사이의 용접길이가 최대 단면길이에 한하는 한계가 있었다. 이로 인해, 차량의 하중을 견디는데 한계가 있었다. 또한, 용접부위에 결함이 있는 경우, 프레임 부재의 절단으로 직결되어 대형사고로 연결되는 위험성 마저 있었다. However, according to the conventional welding method as shown in Figs. 1 and 2, there is a limit that the welding length between each member is limited to the maximum cross-sectional length. For this reason, there was a limit in bearing the load of the vehicle. In addition, when the welded part is defective, there is even a risk of being directly connected to the cutting of the frame member and leading to a large accident.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 제 1 목적은, 사이드 프레임 부재에 충분한 용접길이를 실현함으로서, 용접강도를 향상시켜 종국에는 사이드 프레임이 지지할 수 있는 하중 용량을 증대시킬 수 있는 차량용 사이드 프레임을 제공하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a first object of the present invention is to realize a welding length sufficient for the side frame member, thereby improving the welding strength and ultimately providing a load capacity that the side frame can support. It is to provide a vehicle side frame that can be increased.

본 발명의 제 2 목적은, 용접부위에 작은 결합이 있더라도 각 부재사이의 기계적 끼워 물림으로 인해 하중을 견딜 수 있도록 하는 차량용 사이드 프레임을 제공하는 것이다.It is a second object of the present invention to provide a vehicle side frame that can withstand loads due to mechanical engagement between each member even if there is a small engagement in the welded portion.

상기와 같은 본 발명의 목적들은,Objects of the present invention as described above,

제 1, 2 중간부재(22, 25), 제 1, 2 전방부재(23, 26), 제 1, 2 후방부재(21, 24) 및 복수개의 크로스부재(30)로 이루어지는 차량용 사이드 프레임 에 있어서,In the vehicle side frame comprising the first and second intermediate members 22 and 25, the first and second front members 23 and 26, the first and second rear members 21 and 24, and the plurality of cross members 30. ,

양단에 하향 절곡부(50)를 갖는 제 1, 2 중간부재(22, 24);First and second intermediate members 22 and 24 having downward bent portions 50 at both ends;

일단에 하향 절곡부(50)와 끼워맞춤 가능한 상향 절곡부(42)를 갖고, 상향 절곡부(42)의 단부에는 제 1, 2 중간부재(22, 24)가 삽입될 정도의 확장부(40)를 갖는 제 1, 2 전방부재(23, 26); An extension portion 40 having an upward bent portion 42 that can be fitted with a downward bent portion 50 at one end thereof, and the first and second intermediate members 22 and 24 are inserted into an end portion of the upward bent portion 42. First and second front members (23, 26) having;

일단에 하향 절곡부(50)와 끼워맞춤 가능한 상향 절곡부(42)를 갖고, 상향 절곡부(42)의 단부에는 제 1, 2 중간부재(22, 24)가 삽입될 정도의 확장부(40)를 갖는 제 1, 2 후방부재(21, 24); 및An extension portion 40 having an upward bent portion 42 that can be fitted with a downward bent portion 50 at one end thereof, and the first and second intermediate members 22 and 24 are inserted into an end portion of the upward bent portion 42. First and second rear members (21, 24) having; And

제 1 중간부재(22)와 제 1 전방부재(23) 사이의 접합부위, 제 1 중간부재(22)와 제 1 후방부재(21) 사이의 접합부위, 제 2 중간부재(25)와 제 2 전방부재(26) 사이의 접합부위, 제 2 중간부재(25)와 제 2 후방부재(24) 사이의 접합부위에 형성된 용접부(60)를 포함하는 것을 특징으로 하는 차량용 사이드 프레임에 의해 달성될 수 있다. Bonding portion between the first intermediate member 22 and the first front member 23, Bonding portion between the first intermediate member 22 and the first rear member 21, Second intermediate member 25 and the second It can be achieved by a side frame for a vehicle, characterized in that it comprises a welding portion 60 formed at the junction between the front member 26, the junction between the second intermediate member 25 and the second rear member 24. .

그리고, 전방부재(23, 26), 후방부재(21, 24) 및 중간부재(22, 25)는 하이드로포밍공정으로 성형된 사각단면의 중공 관재인 것이 바람직하다.In addition, the front members 23 and 26, the rear members 21 and 24 and the intermediate members 22 and 25 are preferably hollow tube members having a rectangular cross section formed by a hydroforming process.

또한, 하향 절단부(50)와 상향 절단부(42)는 "ㄱ"자 형상으로 절단되어 형성되는 것이 더욱 바람직하다.In addition, the downward cut portion 50 and the upward cut portion 42 is more preferably formed by cutting in a "-" shape.

뿐만 아니라, 확장부(40)는 각 전방부재(23, 26)와 각 후방부재(21, 24)의 단면중 3면에 형성되는 것이 가장 바람직하다.In addition, the expansion portion 40 is most preferably formed on three surfaces of the cross section of each of the front members (23, 26) and each of the rear members (21, 24).

본 발명의 그밖의 목적, 특정한 장점 및 신규한 특징들은 첨부된 도면들과 연관되어지는 이하의 상세한 설명과 바람직한 실시예들로부터 더욱 분명해질 것이다.Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

이하에서는 본 발명의 바람직한 실시예에 따른 차량용 사이드 프레임의 구성 에 대해 상세히 설명하기로 한다.Hereinafter will be described in detail the configuration of the vehicle side frame according to an embodiment of the present invention.

도 3은 본 발명에 따른 차량용 사이드 프레임에서 사이드 프레임 부재가 용접된 상태를 나타내는 사시도이고, 도 4는 도 3중 A-부분의 확대도이며, 도 5는 도 4에 도시된 A-부분의 분해사시도이다. 도 3, 4, 5에 도시된 바와 같이, 우선, 제 1, 2 전방부재(23, 26), 제 1, 2 중간부재(22, 25) 및 제 1, 2 후방부재(20, 24)를 하이드로포밍공정으로 성형하여 준비한다.3 is a perspective view illustrating a state in which a side frame member is welded in a vehicle side frame according to the present invention, FIG. 4 is an enlarged view of an A-part in FIG. 3, and FIG. 5 is an exploded view of the A-part shown in FIG. 4. Perspective view. As shown in Figs. 3, 4 and 5, first, the first and second front members 23 and 26, the first and second intermediate members 22 and 25 and the first and second rear members 20 and 24 are It is prepared by molding in a hydroforming process.

이 때, 전방부재(23, 26)와 후방부재(20, 24)의 일단은 하이드로포밍 공정에 의해 확장부(40)를 동시에 성형한다. 참고로, 하이드로포밍공정은 폐쇄된 금형(미도시)의 내부에 관재를 넣고, 관재의 안쪽으로 유압을 가해, 관재가 금형의 내면에 밀착되면서 성형되는 공정이다. At this time, one end of the front member (23, 26) and the rear member (20, 24) simultaneously forms the expansion portion 40 by a hydroforming process. For reference, the hydroforming process is a process in which a tube is placed inside a closed mold (not shown), and hydraulic pressure is applied to the inside of the tube, thereby forming the tube close to the inner surface of the mold.

그 다음, 각 부재의 단면에 절단부를 형성한다. 즉, 중간부재(22, 25)의 양단에는 하향 절단부(50)를 형성한다. 이러한 하향 절단부(50)는 "ㄱ"자 형상이 되도록 단부의 아래부분을 절개함으로서 이루어진다. 중간부재(22, 25)의 외관치수는 전방부재(23, 26)와 후방부재(20, 24) 속으로 끼워들기 쉽도록 조금 작은 치수이다. Next, a cutout is formed in the cross section of each member. That is, downward cut portions 50 are formed at both ends of the intermediate members 22 and 25. This downward cut 50 is made by cutting the lower portion of the end to be a "b" shape. The external dimensions of the intermediate members 22 and 25 are slightly smaller so as to be easily inserted into the front members 23 and 26 and the rear members 20 and 24.

그리고, 전방부재(23, 26)와 후방부재(20, 24)의 일단에도 상향 절단부(42)를 형성한다. 이러한 상향 절단부(42)는 "ㄴ"자 형상이 되도록 단부의 위부분을 절개함으로서 이루어진다.In addition, up cuts 42 are formed at one ends of the front members 23 and 26 and the rear members 20 and 24. This upward cut 42 is made by cutting the upper portion of the end to be a "b" shape.

그 다음, 제 1 전방부재(23)와 제 1 후방부재(21)를 지그(미도시)에 고정한 다음, 상부로 부터 하향방향으로 제 1 중간부재(22)를 접근시킨다. 제 1 전방부재 (23)의 확장부(40)와 제 1 후방부재(21)의 확장부(40)에 제 1 중간부재(22)의 각 단부를 끼워넣어 상면이 일치할 때까지 밀착시킨다. 이 때, 도 4에 도시된 마진(C)에 의해 끼움공정이 원활해지고, 부재간의 간섭이 없어진다. 이러한 마진(C)는 다음 공정의 용접에서 용접 플럭스에 의해 채워짐으로서 외관상 보이지 않게 된다.Then, the first front member 23 and the first rear member 21 are fixed to the jig (not shown), and then the first intermediate member 22 is approached downward from the top. Each end of the first intermediate member 22 is fitted into the expansion portion 40 of the first front member 23 and the expansion portion 40 of the first rear member 21 until the upper surface coincides with each other. At this time, the fitting process is smoothed by the margin C shown in FIG. 4, and interference between members is eliminated. This margin C is filled by the welding flux in the welding of the next process so that it is invisible in appearance.

그 다음, 외부상으로 노출되는 접촉부위에 대해 용접을 실시하여 용접부(60)를 형성한다. 이와 같은 과정을 통해 제 1 후방부재(21), 제 1 중간부재(22), 제 1 전방부재(23)가 일체로 제작되고, 제 2 후방부재(24), 제 2 중간부재(25), 제 2 전방부재(26)에 대해서도 동일한 공정을 실시하여 한쌍을 준비한다. Then, welding is performed on the contact portion exposed to the outside to form the weld portion 60. Through this process, the first rear member 21, the first intermediate member 22, and the first front member 23 are integrally manufactured, and the second rear member 24, the second intermediate member 25, The same process is performed also about the 2nd front member 26, and a pair is prepared.

그 다음, 크로스부재(30)를 용접하여 프레임을 완성한다. 크로스 부재(30)의 용접이 완료된 다음, 당업자의 선택에 따라 프레임 부재에 필요한 여타 부품들의 조립이나 용접공정을 수행한다.Then, the cross member 30 is welded to complete the frame. After the welding of the cross member 30 is completed, the assembly or welding process of other components required for the frame member is performed according to the choice of a person skilled in the art.

상기한 구성을 갖는 본 발명의 바람직한 실시예에 따른 차량용 사이드 프레임에 의하면, 사이드 프레임 부재에 충분한 용접길이를 실현함으로서, 용접강도를 향상시켜 종국에는 사이드 프레임이 지지할 수 있는 하중 용량을 증대시킬 수 있는 장점이 있다.According to the vehicle side frame according to the preferred embodiment of the present invention having the above-described configuration, by realizing a sufficient welding length for the side frame member, the welding strength can be improved to increase the load capacity that the side frame can finally support. There is an advantage.

그리고, 용접부위에 작은 결합이 있더라도 각 부재사이의 확실한 기계적 형상물림으로 인해 하중을 견딜 수 있다.In addition, even if there is a small coupling in the welded portion, it is able to withstand the load due to the reliable mechanical shaping between the members.

아울러, 각 부재를 하이드로포밍공정으로 성형함으로서, 용접으로 제작하는 것에 비해 변형강도, 굽힘강도 등이 향상된다. In addition, by forming each member by a hydroforming process, the deformation strength, the bending strength, and the like are improved as compared with those produced by welding.                     

비록 본 발명이 상기 언급된 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정이나 변형을 하는 것이 가능하다. 따라서 첨부된 특허청구의 범위는 본 발명의 요지에서 속하는 이러한 수정이나 변형을 포함할 것이다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

Claims (4)

제 1, 2 중간부재(22, 25), 제 1, 2 전방부재(23, 26), 제 1, 2 후방부재(21, 24) 및 복수개의 크로스부재(30)로 이루어지는 차량용 사이드 프레임 에 있어서,In the vehicle side frame comprising the first and second intermediate members 22 and 25, the first and second front members 23 and 26, the first and second rear members 21 and 24, and the plurality of cross members 30. , 양단에 하향 절곡부(50)를 갖는 제 1, 2 중간부재(22, 24);First and second intermediate members 22 and 24 having downward bent portions 50 at both ends; 일단에 상기 하향 절곡부(50)와 끼워맞춤 가능한 상향 절곡부(42)를 갖고, 상기 상향 절곡부(42)의 단부에는 상기 제 1, 2 중간부재(22, 24)가 삽입될 수 있도록 하이드로포밍공정에 의해 형성된 확장부(40)를 갖는 제 1, 2 전방부재(23, 26); It has an upper bent portion 42 that can be fitted to the lower bent portion 50 at one end, and the first and second intermediate members 22 and 24 can be inserted into the end of the upward bent portion 42. First and second front members 23 and 26 having expansion portions 40 formed by a forming process; 일단에 상기 하향 절곡부(50)와 끼워맞춤 가능한 상향 절곡부(42)를 갖고, 상기 상향 절곡부(42)의 단부에는 상기 제 1, 2 중간부재(22, 24)가 삽입될 수 있도록 하이드로포밍공정에 의해 형성된 확장부(40)를 갖는 제 1, 2 후방부재(21, 24); 및It has an upper bent portion 42 that can be fitted to the lower bent portion 50 at one end, and the first and second intermediate members 22 and 24 can be inserted into the end of the upward bent portion 42. First and second rear members 21 and 24 having expansion portions 40 formed by a forming process; And 상기 제 1 중간부재(22)와 상기 제 1 전방부재(23) 사이의 접합부위, 상기 제 1 중간부재(22)와 상기 제 1 후방부재(21) 사이의 접합부위, 상기 제 2 중간부재(25)와 제 2 전방부재(26) 사이의 접합부위, 상기 제 2 중간부재(25)와 상기 제 2 후방부재(24) 사이의 접합부위에 형성된 용접부(60)를 포함하는 것을 특징으로 하는 차량용 사이드 프레임.Bonding portion between the first intermediate member 22 and the first front member 23, bonding portion between the first intermediate member 22 and the first rear member 21, the second intermediate member ( A welding part 60 formed at the joint between the second front member 26 and the second front member 26, and at the joint between the second intermediate member 25 and the second rear member 24; frame. 삭제delete 제 1 항에 있어서, 상기 하향 절단부(50)와 상향 절단부(42)는 "ㄱ"자 형상으로 절단되어 형성되는 것을 특징으로 하는 차량용 사이드 프레임.The vehicle side frame according to claim 1, wherein the downward cut portion (50) and the upward cut portion (42) are formed by cutting in a "-" shape. 제 1 항 또는 제 3 항에 있어서, 상기 확장부(40)는 상기 각 전방부재(23, 26)와 상기 각 후방부재(21, 24)의 단면중 3면에 형성되는 것을 특징으로 하는 차량용 사이드 프레임.4. The vehicle side according to claim 1 or 3, wherein the extension part 40 is formed on three surfaces of the cross sections of the front members 23 and 26 and the rear members 21 and 24, respectively. frame.
KR1020040109099A 2004-12-21 2004-12-21 Side frame of a vehicle KR100649551B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040109099A KR100649551B1 (en) 2004-12-21 2004-12-21 Side frame of a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040109099A KR100649551B1 (en) 2004-12-21 2004-12-21 Side frame of a vehicle

Publications (2)

Publication Number Publication Date
KR20060070586A KR20060070586A (en) 2006-06-26
KR100649551B1 true KR100649551B1 (en) 2006-11-28

Family

ID=37164190

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040109099A KR100649551B1 (en) 2004-12-21 2004-12-21 Side frame of a vehicle

Country Status (1)

Country Link
KR (1) KR100649551B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018080406A1 (en) * 2016-10-31 2018-05-03 Aapico Amata Company Limited The strengthen part for connecting point on chassis and its manufacturing
WO2022080537A1 (en) * 2020-10-15 2022-04-21 주식회사 엠이알아이티 Electric vehicle platform

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101526420B1 (en) * 2013-12-16 2015-06-05 현대자동차 주식회사 Discontinuous multi-overlapped vehicle body member

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018080406A1 (en) * 2016-10-31 2018-05-03 Aapico Amata Company Limited The strengthen part for connecting point on chassis and its manufacturing
JP2019534205A (en) * 2016-10-31 2019-11-28 アピコ アマタ カンパニー リミテッド Strengthening parts for connecting points on the chassis and their manufacture
JP7068326B2 (en) 2016-10-31 2022-05-16 アピコ アマタ カンパニー リミテッド Reinforced parts for connecting points on the chassis and their manufacture
WO2022080537A1 (en) * 2020-10-15 2022-04-21 주식회사 엠이알아이티 Electric vehicle platform

Also Published As

Publication number Publication date
KR20060070586A (en) 2006-06-26

Similar Documents

Publication Publication Date Title
KR100342792B1 (en) Supporting frame for an Automobile
US5213386A (en) Space frame construction
CN101720292B (en) Process for constructing the loadbearing structure of a motor vehicle body, and loadbearing structure so constructed
GB2305639A (en) Vehicle body frame structure
JP5571169B2 (en) Vehicle seat back frame
KR19980081586A (en) Frame constructions
US5497924A (en) Roof rack rail support foot for automotive vehicles
KR100649551B1 (en) Side frame of a vehicle
US7789429B2 (en) Bodywork structure of a motor vehicle with a suspension strut dome
EP1081022A3 (en) Method of manufacturing a vehicle body and frame assembly
JP4560288B2 (en) Welding method
KR100524638B1 (en) Vehicle Body Frame Structure
US20070102965A1 (en) Hydroformed windshield surround frame for vehicles and method of making same
KR100283366B1 (en) Beams using tailored welding blanks and hydroforming molding methods and manufacturing methods
CN217554030U (en) Rear floor reinforcing cross beam structure and vehicle
JP4098117B2 (en) Axle case
JP4533739B2 (en) Lower arm
JPH01212681A (en) Frame for motorcycle
KR200204157Y1 (en) Frame Structure of Side Entrance for Railway Vehicles
JPH0544226Y2 (en)
KR970003558Y1 (en) Front body assembly of a car
JPH09175431A (en) Reinforcement installing structure of roof panel
JP2940473B2 (en) Cross member mounting structure
KR19990026766A (en) Floor panel connection structure of automobile
JPH02299989A (en) Front car body structure for automobile

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20101101

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee