KR20090064180A - Side member joint structure of vehicle with frame - Google Patents

Side member joint structure of vehicle with frame Download PDF

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Publication number
KR20090064180A
KR20090064180A KR1020070131757A KR20070131757A KR20090064180A KR 20090064180 A KR20090064180 A KR 20090064180A KR 1020070131757 A KR1020070131757 A KR 1020070131757A KR 20070131757 A KR20070131757 A KR 20070131757A KR 20090064180 A KR20090064180 A KR 20090064180A
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South Korea
Prior art keywords
side member
center
center side
front side
vehicle
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KR1020070131757A
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Korean (ko)
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KR101316329B1 (en
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차문수
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기아자동차주식회사
현대자동차주식회사
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Priority to KR1020070131757A priority Critical patent/KR101316329B1/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
    • B62D21/15—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
    • 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
    • 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
    • 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

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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

A side member combining structure of a frame vehicle is provided to efficiently absorb collision energy and prevent a side member from being bent in the horizontal direction in the event of head-on collision and enhance joint rigidity of a connecting part of a front side member and a center side member. A side member combining structure of a frame vehicle includes a center side member(1) and a front side member(3). The center side member has a closed section. The rear end of the front side member is bent to the outside of a car body and combined with the inner side of the center side member. The center side member includes a center side extended part extended forward. A body mounting bracket is located between the center side extended part and the front side member and connects the center side extended part to the front side member.

Description

프레임 차량의 사이드멤버 결합구조{Side Member Joint Structure of Vehicle with Frame}Side member joint structure of vehicle with frame

본 발명은 프레임 차량의 사이드멤버 결합구조에 관한 것으로서, 보다 상세하게는 프론트사이드멤버와 센터사이드멤버 사이의 연결부 결합구조에 관한 기술이다.The present invention relates to a side member coupling structure of a frame vehicle, and more particularly, to a connection coupling structure between a front side member and a center side member.

프레임을 구비한 프레임 바디 차량의 경우, 충돌시 대부분의 에너지를 바디에서 흡수하는 모노코크 타입 차량과는 달리, 프레임에서 충돌에너지의 대부분을 흡수하게 되며, 프레임의 꺽임각, 단면형상, 프론트사이드멤버와 센터사이드멤버의 접합구조 등이 충돌성능의 주요 인자로 작용한다.In the case of a frame body vehicle having a frame, unlike a monocoque type vehicle that absorbs most of the energy in the body when a collision occurs, the frame body vehicle absorbs most of the collision energy in the frame. The junction structure of the center side members acts as a major factor in the collision performance.

여기서, 상기 프레임은 상기 프론트사이드멤버와 센터사이드멤버를 포함하는 개념으로 사용되며, 상기 프론트사이드멤버는 차량의 전방 양측에 설치되는 것을 말하며, 센터프레임은 차량의 중간부분 즉, 객실 부분의 양측에 설치되는 것을 말하는바, 이들 프론트사이드멤버와 센터사이드멤버를 한꺼번에 사이드멤버로 통칭하기도 한다.Here, the frame is used in the concept including the front side member and the center side member, the front side member is installed on both sides of the front of the vehicle, the center frame is in the middle of the vehicle, that is, both sides of the cabin part It is said that these front side members and center side members are collectively referred to as side members.

상기 프레임 차량의 충돌성능에 영향을 미치는 인자들 중, 상기 사이드멤버의 꺽임각과 단면높이 및 폭은 차량의 최저 지상고, 플로어패널의 높이 등 차체의 레이아웃적인 측면에 의해 결정되며, 경우에 따라 상기와 같은 차체의 레이아웃적인 측면을 고려하다 보면, 차체의 충돌성능 만족을 위한 충분한 값을 확보하지 못하기도 한다. Among the factors influencing the collision performance of the frame vehicle, the angle of inclination, cross-sectional height and width of the side member are determined by the layout aspects of the vehicle body such as the minimum ground height of the vehicle and the height of the floor panel. Considering the layout aspect of the same body, it may not be enough to satisfy the collision performance of the body.

특히, 프론트사이드멤버와 센터사이드멤버가 도 1 및 도 2에 도시된 바와 같이 삽입형으로 결합된 경우 접합부의 단면은 프론트사이드멤버(500)와 센터사이드멤버(502)가 서로 동일해야 하며, 상술한 차체의 레이아웃적 요소의 고려에 의해, 직선화가 힘들어 사이드실 부로 절곡되는 형상을 가진다. 이는 차체의 골격 강성을 악화시키는 요인으로 작용하기도 한다.Particularly, when the front side member and the center side member are inserted in the insert type as shown in FIGS. 1 and 2, the cross section of the junction portion must have the same front side member 500 and the center side member 502. By considering the layout elements of the vehicle body, it is difficult to straighten and has a shape that is bent into the side seal part. This also acts as a factor deteriorating the skeleton rigidity of the car body.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 차량의 정면충돌 사고 발생시 효율적인 충돌에너지 흡수가 가능하고, 충돌사고시 사이드멤버의 횡방향 꺽임을 방지할 수 있도록 하며, 프론트사이드멤버와 센터사이드멤버의 연결부 결합강성을 크게 향상시킬 수 있도록 하여, 차량의 안전성을 극대화 하도록 한 프레임 차량의 사이드멤버 결합구조를 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, it is possible to efficiently absorb the collision energy in the event of a frontal collision of the vehicle, to prevent the lateral bending of the side member in the event of a collision, the front side member and the center The purpose is to provide a side member coupling structure of the frame vehicle to maximize the safety of the vehicle by greatly improving the coupling rigidity of the side member connection.

상기한 바와 같은 목적을 달성하기 위한 본 발명 프레임 차량의 사이드멤버 결합구조는 Side member coupling structure of the present invention frame vehicle for achieving the object as described above

폐단면을 가진 센터사이드멤버와;A center side member having a closed section;

차체의 외측으로 절곡된 후방단부가 상기 센터사이드멤버의 차체 내측면에 결합되는 프론트사이드멤버;A front side member having a rear end bent to the outside of the vehicle body and coupled to an inner surface of the vehicle body of the center side member;

를 포함하여 구성된 것을 특징으로 한다.Characterized in that configured to include.

상기 센터사이드멤버는 ㄷ 자형 단면을 가진 센터내측부재 및 센터외측부재가 횡방향으로 서로 마주보며 접합되어 상기 폐단면을 형성하고;The center side member is joined to the center inner member and the center outer member having a c-shaped cross section facing each other in the transverse direction to form the closed cross section;

상기 프론트사이드멤버의 단면의 상측단은 상기 센터내측부재의 상단보다 하측에서 상기 센터내측부재에 접합되는 구조로 할 수 있다.The upper end of the cross section of the front side member may have a structure joined to the center inner member below the upper end of the center inner member.

상기 센터사이드멤버는 상기 프론트사이드멤버와의 결합부위보다 전방으로 연장된 센터사이드연장부를 구비하고;The center side member includes a center side extension portion extending forward from the coupling portion with the front side member;

상기 센터사이드연장부와 상기 프론트사이드멤버 사이에는 바디마운팅브라켓이 상기 센터사이드연장부와 프론트사이드멤버를 연결하면서 장착된 구조로 할 수 있다.A body mounting bracket may be mounted between the center side extension part and the front side member while connecting the center side extension part and the front side member.

본 발명은 차량의 정면충돌 사고 발생시 효율적인 충돌에너지 흡수가 가능하고, 충돌사고시 사이드멤버의 횡방향 꺽임을 방지할 수 있도록 하며, 프론트사이드멤버와 센터사이드멤버의 연결부 결합강성을 크게 향상시킬 수 있도록 하여, 차량의 안전성을 극대화 하도록 한다.The present invention enables efficient collision energy absorption in the event of a frontal collision of a vehicle, prevents side bending of the side member in the event of a collision, and greatly improves the coupling stiffness of the connection between the front side member and the center side member. To maximize the safety of the vehicle.

도 3 내지 도 5를 참조하면, 본 발명 실시예는 폐단면을 가진 센터사이드멤버(1)와; 차체의 외측으로 절곡된 후방단부가 상기 센터사이드멤버(1)의 차체 내측면에 결합되는 프론트사이드멤버(3)를 포함하여 구성된다.3 to 5, an embodiment of the present invention includes a center side member 1 having a closed cross section; The rear end bent to the outside of the vehicle body is configured to include a front side member (3) coupled to the vehicle body inner surface of the center side member (1).

즉, 종래의 삽입형과 같이 센터사이드멤버와 프론트사이드멤버가 함께 하나의 폐단면을 이루는 구조가 아니라, 상기 센터사이드멤버(1) 자체가 별도의 폐단면을 이루고 있는 구조이고, 여기에 또한 폐단면을 이루고 있는 프론트사이드멤버(3)의 후단부가 상기 센터사이드멤버(1)의 차체 내측면에 일체로 결합된 구조를 취한 것이다.That is, the center side member and the front side member do not form a single closed cross-section as in the conventional insertion type, but the center side member 1 itself constitutes a separate closed cross section, and here also the closed cross section. The rear end of the front side member (3) forming a structure that is integrally coupled to the inner surface of the vehicle body of the center side member (1).

상기 센터사이드멤버(1)는 ㄷ 자형 단면을 가진 센터내측부재(5) 및 센터외 측부재(7)가 횡방향으로 서로 마주보며 접합되어 상기 센터사이드멤버(1) 자체의 폐단면을 형성하고, 상기 프론트사이드멤버(3)는 자체적으로 폐단면을 가진 형상으로 형성되어 있으면서 그 단면의 상측단은 상기 센터내측부재(5)의 상단보다 하측에서 상기 센터내측부재(5)에 접합되어 있다.The center side member (1) is a center inner member (5) having a c-shaped cross section and the center member (7) facing each other in the transverse direction are joined to form a closed cross section of the center side member (1) itself The front side member 3 is formed in a shape having a closed cross section itself, and an upper end of the cross section is joined to the center inner member 5 below the upper end of the center inner member 5.

물론, 상기 프론트사이드멤버(3)의 단면의 상측단 높이는 필요에 따라 상하방향으로 적절히 조절하여, 상기 센터사이드멤버(1)의 상단과 프론트사이드멤버(3)의 상단 사이의 단차가 차체의 레이아웃 조건 등에 따라 변경이 가능하다.Of course, the height of the upper end of the cross section of the front side member 3 is appropriately adjusted in the vertical direction as necessary, so that the step between the top of the center side member 1 and the top of the front side member 3 is the layout of the vehicle body. It can be changed according to conditions.

또한, 상기 센터사이드멤버(1)는 상기 프론트사이드멤버(3)와의 결합부위보다 전방으로 연장된 센터사이드연장부(9)를 구비하고, 상기 센터사이드연장부(9)와 상기 프론트사이드멤버(3) 사이에는 바디마운팅브라켓(11)이 상기 센터사이드연장부(9)와 프론트사이드멤버(3)를 연결하면서 장착된 구조이다.In addition, the center side member (1) has a center side extension (9) extending forward than the engaging portion with the front side member (3), the center side extension (9) and the front side member ( 3) Between the body mounting bracket 11 is a structure mounted while connecting the center side extension portion 9 and the front side member (3).

상기한 바와 같이 구성된 본 발명 프레임 차량의 사이드멤버 결합구조는 상기와 같이 자체적으로 폐단면을 구성하고 있는 센터사이드멤버(1)의 측면에 별도의 폐단면을 가지고 있는 프론트사이드멤버(3)의 후단이 결합됨으로써, 상기 센터사이드멤버(1)와 프론트사이드멤버(3)의 접합부가 2중 폐단면 구조를 가지게 되어, 이 부위의 강성이 크게 향상되는 효과를 얻을 수 있다.The side member coupling structure of the frame vehicle according to the present invention configured as described above has a rear end of the front side member 3 having a separate closed cross section on the side of the center side member 1 constituting its own closed cross section as described above. By this combination, the junction between the center side member 1 and the front side member 3 has a double closed cross-sectional structure, and the rigidity of this portion can be greatly improved.

또한, 상기한 바와 같이 센터사이드멤버(1)의 전방 단부를 연장하여 센터사이드연장부(9)를 구비하고, 이 부위를 상기 프론트사이드멤버(3)에 상기 바디마운팅브라켓(11)을 통해 다시 한번 결합함으로써, 상기 센터사이드멤버(1)와 프론트사이드멤버(3)의 결합부 강성이 매우 강화되어, 충돌 사고 등과 같은 경우에도 이 부 분이 차체의 횡방향으로 꺽이거나 하는 등의 변형을 최소화할 수 있다.In addition, as described above, the front end of the center side member 1 is extended to include a center side extension 9, and this part is attached to the front side member 3 through the body mounting bracket 11 again. By combining once, the rigidity of the coupling portion of the center side member (1) and the front side member (3) is very strengthened, even in the case of a collision accident, such as to minimize the deformation such as bending in the transverse direction of the vehicle body Can be.

아울러, 상기 바디마운팅브라켓(11)은 별도의 보강재가 아니라 어차피 바디를 프레임에 장착하기 위해 필요한 부품이므로, 결과적으로 별도의 보강재를 추가하지 않고도 상기한 바와 같은 구조적 특성을 통해 강성을 향상시키는 효과를 얻어 내는 것이다.In addition, the body mounting bracket 11 is not a separate reinforcement, but a component necessary for mounting the body anyway, so as a result, the effect of improving the rigidity through the structural characteristics as described above without adding a separate reinforcement To get it.

도 1은 종래 기술에 의한 프레임 차량의 사이드멤버 결합구조를 설명한 도면,1 is a view illustrating a side member coupling structure of a frame vehicle according to the prior art;

도 2는 도 1의 Ⅱ―Ⅱ선 단면도,2 is a cross-sectional view taken along the line II-II of FIG. 1;

도 3은 본 발명에 따른 프레임 차량의 사이드멤버 결합구조를 설명한 도면,3 is a view illustrating a side member coupling structure of a frame vehicle according to the present invention;

도 4는 도 3의 Ⅳ―Ⅳ선 단면도,4 is a cross-sectional view taken along line IV-IV of FIG. 3;

도 5는 도 3의 Ⅴ―Ⅴ선 단면도이다.5 is a cross-sectional view taken along the line VV of FIG. 3.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 센터사이드멤버 3; 프론트사이드멤버One; Centerside member 3; Front side member

5; 센터내측부재 7; 센터외측부재5; Center inner member 7; Center Outer Member

9; 센터사이드연장부 11; 바디마운팅브라켓9; Centerside extension 11; Body Mounting Bracket

Claims (3)

폐단면을 가진 센터사이드멤버와;A center side member having a closed section; 차체의 외측으로 절곡된 후방단부가 상기 센터사이드멤버의 차체 내측면에 결합되는 프론트사이드멤버;A front side member having a rear end bent to the outside of the vehicle body and coupled to an inner surface of the vehicle body of the center side member; 를 포함하여 구성된 것을 특징으로 하는 프레임 차량의 사이드멤버 결합구조.Side member coupling structure of the frame vehicle, characterized in that configured to include. 청구항 1에 있어서,The method according to claim 1, 상기 센터사이드멤버는 ㄷ 자형 단면을 가진 센터내측부재 및 센터외측부재가 횡방향으로 서로 마주보며 접합되어 상기 폐단면을 형성하고;The center side member is joined to the center inner member and the center outer member having a c-shaped cross section facing each other in the transverse direction to form the closed cross section; 상기 프론트사이드멤버의 단면의 상측단은 상기 센터내측부재의 상단보다 하측에서 상기 센터내측부재에 접합되는 것The upper end of the cross section of the front side member is joined to the center inner member below the upper end of the center inner member 을 특징으로 하는 프레임 차량의 사이드멤버 결합구조.Side member coupling structure of the frame vehicle, characterized in that. 청구항 1 또는 청구항 2에 있어서,The method according to claim 1 or 2, 상기 센터사이드멤버는 상기 프론트사이드멤버와의 결합부위보다 전방으로 연장된 센터사이드연장부를 구비하고;The center side member includes a center side extension portion extending forward from the coupling portion with the front side member; 상기 센터사이드연장부와 상기 프론트사이드멤버 사이에는 바디마운팅브라켓이 상기 센터사이드연장부와 프론트사이드멤버를 연결하면서 장착된 것A body mounting bracket is mounted between the center side extension and the front side member while connecting the center side extension and the front side member. 을 특징으로 하는 프레임 차량의 사이드멤버 결합구조.Side member coupling structure of the frame vehicle, characterized in that.
KR1020070131757A 2007-12-15 2007-12-15 Side Member Joint Structure of Vehicle with Frame KR101316329B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017018626A1 (en) * 2015-07-27 2017-02-02 주식회사 포스코 Vehicle front side frame

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Publication number Priority date Publication date Assignee Title
KR102478127B1 (en) 2017-12-05 2022-12-15 현대자동차주식회사 Combination structure of automobile side member and cross member

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JP4519243B2 (en) * 2000-02-22 2010-08-04 いすゞ自動車株式会社 Body frame
JP2008222185A (en) 2007-03-16 2008-09-25 Mazda Motor Corp Front body structure of vehicle
JP4875559B2 (en) 2007-07-12 2012-02-15 本田技研工業株式会社 Body frame structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017018626A1 (en) * 2015-07-27 2017-02-02 주식회사 포스코 Vehicle front side frame
KR20170013463A (en) * 2015-07-27 2017-02-07 주식회사 포스코 Front side frame for vehicle
US10696329B2 (en) 2015-07-27 2020-06-30 Posco Automotive front side frame

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