KR0134656Y1 - Welding structure of rear body for a car - Google Patents

Welding structure of rear body for a car Download PDF

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Publication number
KR0134656Y1
KR0134656Y1 KR2019930030872U KR930030872U KR0134656Y1 KR 0134656 Y1 KR0134656 Y1 KR 0134656Y1 KR 2019930030872 U KR2019930030872 U KR 2019930030872U KR 930030872 U KR930030872 U KR 930030872U KR 0134656 Y1 KR0134656 Y1 KR 0134656Y1
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KR
South Korea
Prior art keywords
horizontal member
rear side
side frame
flanges
vehicle body
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Application number
KR2019930030872U
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Korean (ko)
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KR950018424U (en
Inventor
이성호
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한승준
기아자동차주식회사
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Priority to KR2019930030872U priority Critical patent/KR0134656Y1/en
Publication of KR950018424U publication Critical patent/KR950018424U/en
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Publication of KR0134656Y1 publication Critical patent/KR0134656Y1/en

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    • 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
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
    • 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
    • B62D25/02—Side panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision
    • 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
    • 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

본 고안은 승용차의 차체후방하부 접합구조에 관한 것으로, 리어사이드프레임(3)에 접합되는 제4가로부재(4)를 소정형상으로 된 연결브라켓트(5)를 매개로 취부시켜 접합부위의 결합력을 강화함에 따라 차체의 내구성을 향상시킬 수 있게 된다.The present invention relates to a car body rear lower joining structure of a car, and the fourth horizontal member (4) to be bonded to the rear side frame (3) is attached through a connecting bracket (5) of a predetermined shape to improve the joining force of the joining portion. By reinforcing it is possible to improve the durability of the vehicle body.

Description

차량의 후방차체하부 접합구조Rear body undercarriage structure of vehicle

제1도는 본 고안이 적용되는 후방차제하부의 개략적인 사시도.1 is a schematic perspective view of the rear vehicle undercarriage to which the present invention is applied.

제2도는 제1도의 I-I선 단면도.2 is a cross-sectional view taken along the line I-I of FIG.

제3도는 본 고안의 요부인 연결브라켓트의 사시도.3 is a perspective view of a connecting bracket which is a main part of the present invention.

제4도와 제5도는 종래구조로서, 제1도 및 제2도의 대응도이다.4 and 5 are conventional structures, corresponding to the first and second views.

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

1 : 센터플로워 2 : 보강판1: center follower 2: reinforcement plate

3 : 리어사이드프레임 4 : 제4가로부재3: rear side frame 4: fourth side member

5 : 연결브라켓트5: Connecting bracket

본 고안은 승용차의 후방차체하부 접합구조에 관한 것으로, 특히 리어사이드프레임에 소정형상의 연결브라켓트를 매개로 가로부재를 접합시킴으로써 차체의 내구성 및 조립성을 향상시킬 수 있도록 된 차량의 후방차체하부 접합구조에 관한 것이다.The present invention relates to a rear body bottom joining structure of a passenger car, and in particular, the rear body bottom joining of the vehicle that can improve the durability and assemblability of the vehicle body by joining the horizontal member to the rear side frame via a connecting bracket of a predetermined shape. It's about structure.

일반적으로 승용차의 후미차체는 제4도에 도시된 바와 같이, 센터플로워(1)하부 양측부에 차체의 길이방향을 따라 소정형상으로 절곡되면서 내부에 ㄷ자형상의 보강판(2)이 접합된 리어사이드프레임(3)이 설치되고, 이 리어사이드프레임(3)의 사이에 횡방향으로 제4가로부재(4)가 접합되어 차체를 지지하도록 되어 있었다.In general, the rear body of the passenger car, as shown in FIG. 4, is bent in a predetermined shape along the longitudinal direction of the vehicle body on both lower sides of the center follower 1, and the rear U-shaped reinforcement plate 2 is joined to the inside. The side frame 3 was provided, and the fourth horizontal member 4 was joined in the transverse direction between the rear side frames 3 to support the vehicle body.

이와 같은 접합구조는 제4도의 II-II선의 단면을 도시한 제5도에 도시된 바와 같이, 상기 리어사이드프레임(3)의 일측에 형성된 플랜지(3a) 하부에 제4가로부재(4)의 양쪽 상부에 바깥쪽으로 절곡형성된 플랜지(4a)가 용접과 같은 수단으로 접합된 구조로 되어 있었다.As shown in FIG. 5, which shows a cross section of the II-II line of FIG. 4, the joint structure of the fourth horizontal member 4 is formed under the flange 3a formed on one side of the rear side frame 3. As shown in FIG. The flanges 4a, which were bent outwardly on both upper portions, were joined together by means such as welding.

그러나 상기와 같은 접합구조는, 차체의 양측부에 설치된 리어사이드프레임(3)이 차체의 구조상 절곡이 심한 형상으로 제작되어야만 하기 때문에, 이 리어사이드프레임(3)에 접합되는 제4가로부재(4)의 형상제작이 용이하지 못함과 더불어, 이들간의 결합이 플랜지(3a, 4a) 부위만의 접합이므로 그 접합부위의 체결력이 약해서 차량의 측면충돌사고시 발생되는 충격력에 차체가 효과적으로 대응할 수 없게 됨에 따라 탑승자의 안전이 위협받게 되는 문제점이 있었다.However, since the rear side frame 3 provided on both sides of the vehicle body has to be manufactured in a shape that is severely bent due to the structural structure of the vehicle body, the fourth horizontal member 4 joined to the rear side frame 3 is connected. ) Is not easy to manufacture, and since the coupling between them is only a joint of the flanges 3a and 4a, the fastening force of the joint is weak so that the vehicle body cannot effectively cope with the impact force generated in the event of a side collision of the vehicle. There was a problem that the safety of the occupants is threatened.

이에 본 고안은 상기와 같은 제반 문제점을 해소하기 위해 안출된 것으로, 리어사이드프레임에 접합되는 제4가로부재를 소정형상으로 된 연결브라켓트를 매개로 취부시킴에 따라 접합부위의 결합력을 강화시켜 차체의 내구성을 향상시킬 수 있도록 된 차량의 후방차체하부 접합구조를 제공함에 그 목적이 있다.Therefore, the present invention was devised to solve the above problems, and by attaching the fourth horizontal member joined to the rear side frame through a connection bracket having a predetermined shape, the coupling force of the joint portion was strengthened. It is an object of the present invention to provide a joint structure under the rear body of the vehicle to improve the durability.

상기와 같은 목적을 달성하기 위한 본 고안은, 차체의 양측부에 길이방향을 따라 설치된 리어사이드프레임의 사이에 횡방향으로 제4가로부재가 상호 플랜지부위의 접합으로 이루어진 후방차체하부접합구조에 있어서, 상기 리어사이드프레임과 제4가로부재사이에 단면이 대략 ㄷ자형상으로 경사지면서 일측부에 좌면을 갖추고 다른쪽 측부에 연장면을 갖춘 하부면과 이 하부면이 연장되어 수직상방향으로 서로 대향되게 절곡된 측면, 이 측면에 상방향 및 측방향으로 연장되어 절곡된 플랜지를 일체로 구비한 연결브라켓트가 각각 리어사이드프레임의 플랜지와 측면 및 하부면, 그리고 제4가로부재의 플랜지와 하부면에 각각 3매 또는 2매 용접되어지는 구조로 되어 있다.The present invention for achieving the above object is, in the rear vehicle body lower joint structure consisting of the joining of the flange portion between the fourth horizontal member in the transverse direction between the rear side frame installed in both sides of the vehicle body in the longitudinal direction A lower surface having a left surface on one side and an extended surface on the other side and an inclined cross section between the rear side frame and the fourth horizontal member so as to face each other in the vertical direction; Connecting brackets having integrally bent sides and flanges bent upward and laterally on the side surfaces are respectively provided on the flange and the side and bottom surfaces of the rear side frame, and on the flange and the bottom surface of the fourth horizontal member, respectively. It is structured to weld three or two sheets.

이하 본 고안은 첨부된 예시도면에 의거 상세히 설명한다. 제1도는 본 고안이 적용되는 후방차체의 개략적인 사시도이고, 제2도는 제1도의 I-I선 단면도이며, 제3도는 본 고안이 요부인 연결브라켓트의 사시도로서, 종래구조와 동일한 부위에는 동일참조부호를 병기하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a rear vehicle body to which the present invention is applied, FIG. 2 is a cross-sectional view taken along line II of FIG. 1, and FIG. 3 is a perspective view of a connecting bracket to which the present invention is essential. To write.

본 고안은 도면에 도시된 바와 같이, 차량의 센터플로워(1)하부 양측부에 차체의 길이방향을 따라 내부에 대략 ㄷ자형상의 보강판(2)이 접합되면서 양선단부가 외측으로 절곡된 플랜지(3a)를 일체로 갖춘 리어사이드프레임(3)이 설치되고, 이 리어사이드프레임(3)사이에 횡방향으로 제4가로부재(4)가 양선단부에 소정형상으로 된 연결브라켓트(5)를 매개로 접합된 구조로 되어 있다.According to the present invention, as shown in the drawings, both sides of the lower portion of the center follower (1) of the vehicle are joined to each other along the longitudinal direction of the vehicle body in a substantially c-shaped reinforcement plate (2) while the flanges having both ends bent outwards ( A rear side frame 3 integrally provided with 3a) is provided, and a fourth horizontal member 4 is interposed between the rear side frames 3 in a predetermined shape at both ends thereof. It is a structure joined together.

그리고 상기 연결브라켓트(5)는 제3도에 도시된 바와 같이, 단면이 대략 ㄷ자형상으로 하부면(5a)이 경사지면서 한쪽선단의 중앙부에 볼록하게 형성된 좌면(5b)과 다른쪽 선단이 전방으로 돌출된 연장면(5c)을 갖추고, 이 하부면(5a)이 연장되어 수직상방향으로 서로 대향되도록 절곡된 측면(5d)과, 이 측면(5d)이 연장되어 상방향 외측으로 수평이면서 단차가 지도록 절곡된 플랜지(5e) 및 측면(5d)의 전방외측으로 절곡된 플랜지(5f)를 일체로 갖추도록 형성되어져 있는 바, 먼저 이 연결브라켓트(5)의 측면(5d) 상방향으로 연장절곡된 플랜지(5e)의 일부분과 측면(5d)의 전방으로 연장절곡된 플랜지(5f) 및 하부면(5a)의 연장면(5c)이 각각 리어사이드프레임(3)의 플랜지(3a)와 측면(3b) 및 하부면(3c)에 접하여 센터플로워(1) 및 보강판(2)과 함께 3매 용접되고, 연결브라켓트(5)의 측면(5d) 상방향으로 연장절곡된 플랜지(5e)의 다른 일부분이 제4가로부재(4)의 플랜지(4a) 및 센터플로워(1)와 3매 용접됨과 더불어, 연결브라켓트(5)의 하부면(5a) 일측에 형성된 좌면(5b)이 제4가로부재(4)의 하부면(4b)과 2매 용접되게 된다.As shown in FIG. 3, the connecting bracket 5 has an inclined bottom surface 5a in the shape of a c-shape and a convex seat surface 5b and the other front end of which are convex in the center of one front end. It has a protruding extending surface 5c, the lower surface 5a is extended and bent to face each other in the vertical direction, and the side surface 5d is extended so that the step is horizontally upward and outward. It is formed to integrally have a flange (5e) bent to be formed and a flange (5f) bent outwardly of the side (5d), first bent upward of the side (5d) of the connecting bracket (5) A portion of the flange 5e and a flange 5f extended forward of the side surface 5d and an extension surface 5c of the lower surface 5a are respectively the flange 3a and the side surface 3b of the rear side frame 3. 3) welded together with the center follower (1) and the reinforcement plate (2) in contact with the lower surface (3c) and the connecting bracket The other portion of the flange 5e extending upwardly bent to the side 5d of the side 5 is welded to the flange 4a and the center follower 1 of the fourth horizontal member 4, and the connecting bracket ( The seating surface 5b formed at one side of the lower surface 5a of 5) is welded to the lower surface 4b of the fourth horizontal member 4.

따라서, 상기와 같이 리어사이드프레임(3)에 연결브라켓트(5)를 매개로 제4가로부재(4)가 접합됨으로써, 리어사이드프레임(3)의 굴곡진 부위에서도 제4가로부재(4)의 정확한 접합이 이루어져 조립공정상의 불량성이 감소되게 된다.Therefore, as described above, the fourth horizontal member 4 is joined to the rear side frame 3 via the connecting bracket 5, so that the fourth horizontal member 4 of the rear side frame 3 may be curved. Accurate bonding is achieved to reduce defects in the assembly process.

이상 설명한 바와 같이 본 고안 차량의 후방차체하부 접합구조에 의하면, 차체의 양측부에 설치된 리어사이드프레임(3)의 사이에 횡방향으로 제4가로부재(4)가 연결브라켓트(5)를 매개로 견고하게 접합됨에 따라, 차량의 측면충돌시에 발생되는 충격량을 효과적으로 분산흡수시켜서 탑승자의 안전을 도모할 수 있는 효과가 있는 것이다.As described above, according to the rear body lower joining structure of the vehicle according to the present invention, the fourth horizontal member 4 is transversely disposed between the rear side frame 3 provided at both sides of the vehicle body via the connecting bracket 5. As it is firmly bonded, it is possible to effectively absorb and absorb the amount of impact generated during the side collision of the vehicle to achieve the safety of the occupants.

Claims (1)

차체의 양측부에 길이방향을 따라 설치된 리어사이드프레임(3)의 사이에 횡방향으로 제4가로부재(4)가 상호 플랜지(3a, 4a) 부위의 접합으로 이루어진 후방차체하부접합구조에 있어서, 상기 리어사이드프레임(3)과 제4가로부재(4)사이에, 단면이 대략 ㄷ자형상으로 경사지면서 한쪽선단부에 볼록한 형상의 좌면(5b)을 갖추고 다른쪽 선단부에 연장면(5b)을 갖춘 하부면(5a)과, 이 하부면(5a)이 연장되어 수직상방향으로 서로 대향되게 절곡된 측면(5d), 이 측면(5d)에 상방향 및 전방외측으로 연장되어 절곡된 플랜지(5e, 5f)를 일체로 구비한 연결브라켓트(5)가 각각 리어사이드프레임(3)의 플랜지(3a)와 측면(3b) 및 하부면(3c), 제4가로부재(4)의 플랜지(4a)와 하부면(4b), 그리고 센터플로워(1)에 각각 3매 또는 2매 용접되어지는 것을 특징으로 하는 차량의 후방차체하부 접합구조.In the rear vehicle body lower joining structure in which the fourth horizontal member 4 is joined to the flanges 3a and 4a in the lateral direction between the rear side frames 3 provided in the longitudinal direction on both sides of the vehicle body, Between the rear side frame 3 and the fourth horizontal member 4, a cross section is inclined in a substantially C-shape and has a convex seating surface 5b at one tip and an extension surface 5b at the other tip. A surface 5a, a side surface 5d on which the lower surface 5a extends and bends to face each other in the vertical direction, and flanges 5e and 5f extending upward and forward and outward on the side surface 5d. The connecting brackets 5 having integrally formed) are respectively the flanges 3a and the side surfaces 3b and the lower surface 3c of the rear side frame 3, and the flanges 4a and the lower portion of the fourth horizontal member 4, respectively. Underbody of the rear of the vehicle, characterized in that three or two sheets are welded to the surface 4b and the center follower 1, respectively. Must architecture.
KR2019930030872U 1993-12-30 1993-12-30 Welding structure of rear body for a car KR0134656Y1 (en)

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KR2019930030872U KR0134656Y1 (en) 1993-12-30 1993-12-30 Welding structure of rear body for a car

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KR2019930030872U KR0134656Y1 (en) 1993-12-30 1993-12-30 Welding structure of rear body for a car

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KR0134656Y1 true KR0134656Y1 (en) 1999-01-15

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