KR20100042844A - Reinforcement structure of side member - Google Patents

Reinforcement structure of side member Download PDF

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Publication number
KR20100042844A
KR20100042844A KR1020080102032A KR20080102032A KR20100042844A KR 20100042844 A KR20100042844 A KR 20100042844A KR 1020080102032 A KR1020080102032 A KR 1020080102032A KR 20080102032 A KR20080102032 A KR 20080102032A KR 20100042844 A KR20100042844 A KR 20100042844A
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South Korea
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side member
center floor
front side
center
reinforcing
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KR1020080102032A
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Korean (ko)
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KR100957272B1 (en
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이재혁
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현대자동차주식회사
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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
    • 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
    • B62D21/17—Understructures, i.e. chassis frame on which a vehicle body may be mounted forming fluid or electrical conduit means or having other means to accommodate the transmission of a force or signal
    • 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

PURPOSE: A side member reinforcement structure is provided to prevent a buckling of a center floor side member and a front side member combining units by forming a center unit of a side member including a reinforcement member with a reinforcement unit. CONSTITUTION: A side member reinforcement structure comprises a front side member(200), a center floor side member(300), a seat member(400) and a reinforcement member(600). The front side member and the center floor side member is installed on the lower side of a center floor(100) in the longitudinal direction. The seat member is installed on the upper side of the center floor in the breadth direction of a vehicle. The reinforcement member is connected to the upper side of the center floor while covering the seat member. The reinforcement member includes a reinforcement unit(620).

Description

사이드멤버 보강구조{REINFORCEMENT STRUCTURE OF SIDE MEMBER}Side Member Reinforcement Structure {REINFORCEMENT STRUCTURE OF SIDE MEMBER}

본 발명은 사이드멤버 보강구조에 관한 것으로서, 더욱 상세하게는 차량의 정면 충돌시 사이드멤버 센터부분이 상부방향으로 좌굴되는 것을 방지하고, 충격력이 분산되도록 하여 탑승객의 상해치를 최소화시킬 수 있는 사이드멤버 보강구조에 관한 것이다. The present invention relates to a side member reinforcement structure, and more particularly, to prevent the side member center portion from buckling upward in a frontal collision of the vehicle, and to distribute the impact force so that side member reinforcement can be minimized. It's about structure.

일반적으로 차량의 차체는 여러 가지의 패널과 프레임이 상호 적절하게 조합되어 박스 형태를 가지며, 상기와 같은 조합을 통해 프레임과 바디가 일체로 제작된 차체를 모노코크 구조(monocoque structure)라 부르고, 상기 모노코크 구조를 통해 충돌 사고시에 센터플로어에 가하여지는 충격을 흡수하게 된다.In general, a vehicle body has a box shape by combining various panels and frames with each other, and a vehicle body in which a frame and a body are integrally manufactured through the above combination is called a monocoque structure. The structure absorbs the impact on the center floor in the event of a crash.

이와 같은 모노코크 구조의 조립 순서는 생산 라인의 레이아웃에 따라 정해지는데, 보통 처음에는 프런트부, 센터부, 리어부, 대시부 등이 조립되고, 두 번째로 측면 필러부가 조립되며, 최종적으로는 카울부가 장착된다.The order of assembly of the monocoque structure is determined according to the layout of the production line. Usually, the front part, the center part, the rear part, the dash part, etc. are assembled, and the second side pillar part is assembled, and finally the cowl part is assembled. Is mounted.

도 1은 종래기술에 따른 차체를 나타낸 사시도이고, 도 2는 사이드멤버의 센터부를 나타낸 확대도이며, 도 3은 도 2에 표시된 A-A선 단면도이며, 도 4는 종래기술에 따른 사이드멤버 센터부의 좌굴 상태를 나타낸 단면도이다.1 is a perspective view showing a vehicle body according to the prior art, Figure 2 is an enlarged view showing the center portion of the side member, Figure 3 is a cross-sectional view taken along the line AA shown in Figure 2, Figure 4 is a buckling of the side member center portion according to the prior art It is sectional drawing which showed state.

여기서 차체의 센터부는 도 1 및 도 2에 도시된 바와 같이, 센터플로어(10)의 양측단에 프론트사이드멤버(20)와 센터플로어사이드멤버(30)를 차체 길이방향을 따라 각각 설치하고, 프론트사이드멤버(20)와 센터플로어사이드멤버(30) 사이의 대응면은 용접을 통해 결합하며, 이를 통해 정면 충돌시 충격력을 흡수하게 된다.1 and 2, the center portion of the vehicle body, the front side member 20 and the center floor side member 30 are installed at both sides of the center floor 10 along the vehicle body length direction, respectively, The corresponding surface between the side member 20 and the center floor side member 30 is coupled by welding, thereby absorbing the impact force during frontal collision.

그리고 상기 센터플로어(10)의 상면에는 차폭방향으로 시트멤버(40)가 결합되며, 상기 시트멤버(40)를 통해 측면 충돌시 충격력을 흡수하게 된다.In addition, the seat member 40 is coupled to the upper surface of the center floor 10 in the vehicle width direction, and absorbs the impact force during side impact through the seat member 40.

또한, 프론트사이드멤버(20)의 내측에는 도 3에 도시된 바와 같이, 차체 길이방향을 따라 중앙사이드멤버(50)가 구비되며, 상기 중앙사이드멤버(50)를 통해 프론트사이드멤버(20)의 강도 및 강성을 보강하게 된다.In addition, the inside of the front side member 20, as shown in Figure 3, the central side member 50 is provided along the longitudinal direction of the vehicle body, through the center side member 50 of the front side member 20 Strength and rigidity will be reinforced.

한편, 상기 프론트사이드멤버(20)와 센터플로어사이드멤버(30) 사이의 대응면을 용접하기 위해 센터플로어(10)의 상면에는 도 3에 도시된 바와 같이, 용접건(미도시) 등의 공구를 진입시키기 위한 공구 진입용 진입홀(11)이 형성되며, 상기 공구 진입용 진입홀(11)은 용접완료 후 마감커버(12)를 통해 마감된다.Meanwhile, in order to weld the corresponding surface between the front side member 20 and the center floor side member 30, a tool such as a welding gun (not shown) is provided on the top surface of the center floor 10 as shown in FIG. 3. An entry hole 11 for entering a tool is formed, and the entry hole 11 for entering the tool is closed through the finishing cover 12 after completion of welding.

그러나 상기한 사이드멤버의 센터부는 도 4에 도시된 바와 같이, 차량의 정면 충돌시 엔진룸으로부터 전달되는 충돌 충격에 의해 프론트사이드멤버(20)와 센터플로어사이드멤버(30)의 결합부분이 상부방향으로 좌굴되면서 센터플로어(10)가 들어 올려지게 되며, 이에 따라 승객에게 치명상을 줄 수 있는 문제점이 있었다.However, as shown in FIG. 4, the center portion of the side member is coupled to the front side member 20 and the center floor side member 30 by an impact shock transmitted from the engine room during the frontal collision of the vehicle. The center floor 10 is lifted up as it is buckled, and accordingly, there is a problem that can cause a fatal injury to the passenger.

더욱이 용접건(미도시)이 진입하기 위한 공구 진입용 진입홀(11)로 인하여 센터플로어(10)의 강도 및 강성이 약화되어 프론트사이드멤버(20)와 센터플로어사이드멤버(30)의 결합부분의 좌굴을 가속화시키게 되는 문제점이 있었다.Furthermore, the strength and rigidity of the center floor 10 is weakened by the entry hole 11 for entering the welding gun (not shown), so that the engagement portion of the front side member 20 and the center floor side member 30 is reduced. There was a problem of accelerating buckling.

이와 같은 문제점을 해결하기 위해 센터플로어사이드멤버(30)의 두께를 0.9~1.2t로 상향하여 설정함으로써 프론트사이드멤버(20)와 센터플로어사이드멤버(30) 결합부분의 좌굴 현상을 현저하게 방지할 수 있지만, 차체의 중량 및 원가 상승하는 문제점이 있었다.In order to solve this problem, by setting the thickness of the center floor side member 30 to 0.9 to 1.2t, the buckling of the front side member 20 and the center floor side member 30 can be significantly prevented. Although there is a problem that the weight and cost of the car body rises.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 프론트사이드멤버와 센터플로어사이드멤버의 결합부위에 보강부재를 설치함으로써 프론트사이드멤버와 센터플로어사이드멤버 결합부위의 좌굴을 방지할 수 있고, 그에 따라 승객의 상해치를 최소화시킬 수 있으며, 더불어 중량 및 원가를 절감할 수 있는 사이드멤버 보강구조를 제공하는데 있다.The present invention has been made to solve the above problems, an object of the present invention is to provide a buckling of the front side member and the center floor side member coupling portion by installing a reinforcing member on the coupling portion of the front side member and the center floor side member. It is possible to prevent, thereby minimizing the passenger injury, and to provide a side member reinforcement structure that can reduce the weight and cost.

상기와 같은 목적을 달성하기 위한 본 발명의 사이드멤버 보강구조는 센터플로어의 하면에 차체 길이방향으로 설치되고 대응하는 단부가 결합되는 프론트사이드멤버 및 센터플로어사이드멤버; 상기 센터플로어의 상면에 차폭 방향으로 설치되는 시트멤버; 상기 시트멤버를 감싸는 형태로 센터플로어의 상면에 결합되고, 저면에 센터플로어의 공구 진입용 진입홀을 통해 프론트사이드멤버 및 센터플로어사이드멤버의 결합부위에 중첩 결합되는 보강부가 구비되는 보강부재를 포함하는 것을 특징으로 한다.Side member reinforcement structure of the present invention for achieving the above object is a front side member and a center floor side member is installed in the longitudinal direction of the vehicle body on the lower surface of the center floor and the corresponding end is coupled; A seat member installed on the upper surface of the center floor in a vehicle width direction; The reinforcing member is coupled to an upper surface of the center floor in a form surrounding the seat member, and a reinforcing member having a reinforcing part overlapped with a coupling part of the front side member and the center floor side member through an entrance hole for entering the tool of the center floor. It is characterized by.

상기 보강부재는 상부로 돌출되는 리브를 추가로 포함하는 것을 특징으로 한다.The reinforcing member is characterized in that it further comprises a rib protruding upwards.

상기 보강부는 상기 공구 진입용 진입홀의 내주면에 밀착되게 삽입되어 공구 진입용 진입홀을 마감하는 것을 특징으로 한다.The reinforcing part is inserted in close contact with the inner circumferential surface of the entry hole for entering the tool, characterized in that to close the entry hole for entering the tool.

상기 프론트사이드멤버의 내측에는 길이방향으로 중앙사이드멤버가 설치되 며, 상기 중앙사이드멤버의 일단은 프론트사이드멤버의 선단에 결합되고 타단은 센터플로어사이드멤버 방향으로 연장되고 프론트사이드멤버 및 센터플로어사이드멤버의 결합부위에 결합되는 것을 특징으로 한다.The inner side of the front side member is provided with a central side member in the longitudinal direction, one end of the central side member is coupled to the front end of the front side member and the other end extends in the direction of the center floor side member, the front side member and the center floor side It is characterized in that coupled to the coupling portion of the member.

상기와 같이 본 발명은 프론트사이드멤버 및 센터플로어사이드멤버의 결합부위를 지지하는 보강부를 형성한 보강부재를 포함하여 사이드멤버의 센터부를 구성함으로써 프론트사이드멤버 및 센터플로어사이드멤버 결합부위의 좌굴을 방지하는 한편, 충격력을 센터플로어 전체에 분산시킬 수 있어 탑승객의 상해치를 최소화시킬 수 있으며, 더불어 중량 및 원가를 절감할 수 있어 품질을 향상시킬 수 있는 효과가 있다.As described above, the present invention prevents buckling of the front side member and the center floor side member coupling part by configuring the center part of the side member, including a reinforcement member having a reinforcement part supporting the coupling part of the front side member and the center floor side member. On the other hand, the impact force can be dispersed throughout the center floor, thereby minimizing the injuries of the passengers, and can reduce the weight and cost, thereby improving quality.

이하, 본 발명에 따른 사이드멤버 보강구조를 첨부된 도 5 내지 도 8을 참조하여 상세히 설명한다.Hereinafter, the side member reinforcing structure according to the present invention will be described in detail with reference to FIGS. 5 to 8.

본 발명에 따른 사이드멤버 보강구조는 사이드멤버 센터부의 강도 및 강성을 보강하여 정면 충돌시 차체 변형을 방지하고, 탑승객을 보호하기 위한 것으로, 센터플로어(100)의 양측단에 차체 길이방향으로 설치되고 대응하는 단부가 중첩된 상태로 용접을 통해 결합되는 프론트사이드멤버(200) 및 센터플로어사이드멤버(300), 상기 센터플로어(100)의 상면에 차폭 방향으로 설치되는 시트멤버(400), 상기 프론트사이드멤버(200) 내측에서 차체 길이방향으로 설치되어 프론트사이드멤버(200)의 강도 및 강성을 보강하는 중앙사이드멤버(500), 상기 센터플로어(100) 상면에 설치 되고 센터플로어(100)에 형성된 용저건 등의 공구(미도시) 진입용 진입홀(110)을 통해 프론트사이드멤버(200) 및 센터플로어사이드멤버(300) 결합부위의 강도 및 강성을 보강하는 보강부재(600)를 포함한다.The side member reinforcement structure according to the present invention is to reinforce the strength and rigidity of the side member center portion to prevent the body deformation during the frontal collision and to protect the passengers, and is installed in the vehicle body longitudinal direction at both ends of the center floor 100. The front side member 200 and the center floor side member 300 coupled by welding in a state where the corresponding ends overlap, the seat member 400 installed in the vehicle width direction on the top surface of the center floor 100, the front The central side member 500 is installed in the longitudinal direction of the vehicle body inside the side member 200 to reinforce the strength and rigidity of the front side member 200, and is installed on the center floor 100 and formed on the center floor 100. Reinforcing member 600 for reinforcing the strength and rigidity of the front side member 200 and the center floor side member 300 through the entrance hole 110 for entering a tool (not shown) such as a melting gun It includes.

여기서, 상기 센터플로어(100), 프론트사이드멤버(200), 센터플로어사이드멤버(300), 시트멤버(400)는 종래기술에서 전술한 센터플로어, 프론트사이드멤버, 센터플로어사이드멤버, 시트멤버와 동일한 구성과 기능을 가지기 때문에, 그에 따라 자세한 설명은 생략한다.Here, the center floor 100, the front side member 200, the center floor side member 300, the seat member 400 is the center floor, the front side member, the center floor side member, the seat member and Since the same configuration and function, detailed description thereof will be omitted accordingly.

보강부재(600)는 도 7 및 도 8에 도시된 바와 같이, 정면 충돌시 프론트사이드멤버(200) 및 센터플로어사이드멤버(300)의 결합부위가 상부방향으로 좌굴되지 않도록 지지하는 한편, 프론트사이드멤버(200)로부터 전달되는 충격력을 센터플로어(100) 전체로 분산시키기 위한 것이다.As shown in FIGS. 7 and 8, the reinforcing member 600 supports the coupling portion of the front side member 200 and the center floor side member 300 when the frontal collision is not buckled upward, and the front side. The impact force transmitted from the member 200 is to be distributed to the entire center floor 100.

즉, 상기 보강부재(600)는 중앙에 시트멤버(400)의 주면을 감싸는 형태로 용접을 통해 결합되는 '∩'자 형태의 절곡부(610)가 형성되고, 양단부는 시트멤버(400)의 양측에 위치하는 센터플로어(100)의 상면에 공구 진입용 진입홀(110)을 포함한 상태로 용접을 통해 결합되며, 저면에는 센터플로어(100)에 형성된 공구 진입용 진입홀(110)을 통해 하부로 연장되고 프론트사이드멤버(200) 및 센터플로어사이드멤버(300)의 결합부위에 지지되는 보강부(620)가 형성되고, 상기 보강부(620)는 저면이 프론트사이드멤버(200) 및 센터플로어사이드멤버(300)의 중첩부위에 용접을 통해 부착되어 프론트사이드멤버(200) 및 센터플로어사이드멤버(300)의 중첩부위가 좌굴되는 것을 방지하게 된다.That is, the reinforcing member 600 has a bent portion 610 of the '∩' shape is coupled in the form of wrapping the main surface of the sheet member 400 in the center by welding, both ends of the sheet member 400 The upper surface of the center floor 100 located on both sides is coupled by welding in a state including the entry hole 110 for entering the tool, and the bottom extends downward through the entry hole 110 for entering the tool formed in the center floor 100. And a reinforcement part 620 is formed at a coupling portion of the front side member 200 and the center floor side member 300, and the reinforcement part 620 has a bottom surface of the front side member 200 and the center floor side member. It is attached to the overlapping portion of the 300 by welding to prevent the overlapping portion of the front side member 200 and the center floor side member 300 is buckled.

따라서 보강부재(600)는 정면 충돌시 발생하는 충격력에 의해 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 중첩부위가 상부방향으로 좌굴되지 않도록 지지하는 한편, 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 결합부위로부터 전달되는 충격력을 센터플로어(100) 전체로 전가하여 분산시킴으로써 탑승객의 안정성을 향상시킬 수 있다.Therefore, the reinforcing member 600 supports the overlapping portion of the front side member 200 and the center floor side member 300 by the impact force generated during the front collision so as not to be buckled upward, and the front side member 200 and the front side member 200. The impact force transmitted from the coupling portion of the center floor side member 300 is transferred to the entire center floor 100 to be distributed, thereby improving stability of the passenger.

또한, 상기 보강부(620)는 공구 진입용 진입홀(110)의 내주면에 밀착된 상태로 삽입되어 마감함으로써 공구 진입용 진입홀(110)을 마감하기 위한 별도의 마감커버(미도시)를 구비해야 하는 번거로움을 해소할 수 있고, 더불어 제작비용을 절감할 수 있다.In addition, the reinforcement part 620 is to be provided in the state close to the inner circumferential surface of the entry hole 110 for entering the tool to be closed to provide a separate finishing cover (not shown) for closing the entry hole 110 for entering the tool. It can eliminate the inconvenience and reduce the production cost.

여기서, 상기 보강부재(600)의 상면 일측(도 5에서 보았을 때 좌측)에는 보강부재(600)의 강도 및 강성을 보강하기 위한 리브(630)가 차체 길이방향으로 돌출되게 추가로 형성될 수 있으며, 상기 리브(630)의 일단은 보강부(620)와 연결되어 보강부(620)의 강도 및 강성을 증대시키게 된다.Here, a rib 630 for reinforcing the strength and rigidity of the reinforcing member 600 may be further formed on one side of the upper surface of the reinforcing member 600 (left side when viewed in FIG. 5) to protrude in the vehicle body length direction. One end of the rib 630 is connected to the reinforcement part 620 to increase the strength and rigidity of the reinforcement part 620.

즉, 상기 리브(630)는 보강부재(600)의 강도 및 강성을 보강함으로써 센터플로어(100)의 변형을 방지하는 한편, 보강부(620)의 강도 및 강성을 보강함으로써 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 결합부위의 좌굴을 현저하게 방지하게 된다.That is, the rib 630 prevents deformation of the center floor 100 by reinforcing the strength and rigidity of the reinforcing member 600, while reinforcing the strength and rigidity of the reinforcing part 620, so that the front side member 200 And buckling of the coupling portion of the center floor side member 300 is significantly prevented.

또한, 보강부재(600)의 상면 타측(도 5에서 보았을 때 우측)에는 상기 보강부(620)의 내부까지 연장 형성되는 개방홈(640)이 추가로 형성될 수 있으며, 상기 개방홈(640)을 통해 중량감소 및 원가를 절감할 수 있다.In addition, an open groove 640 extending to the inside of the reinforcement part 620 may be further formed on the other side of the upper surface of the reinforcement member 600 (the right side when viewed in FIG. 5), and the open groove 640. Through this, weight reduction and cost can be reduced.

한편, 중앙사이드멤버(500)의 일단부는 프론트사이드멤버(200)에 결합되고, 타단부(510)는 센터플로어사이드멤버(300) 방향으로 연장되고 프론트사이드멤버(200) 및 센터플로어사이드멤버(300)의 결합부위에 용접을 통해 결합되며, 이를 통해 충돌시 중앙사이드멤버(500)의 타단부(510)가 상부방향으로 일어나는 것을 방지하게 되며, 더불어 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 결합부위를 지지하여 이들의 결합부위의 좌굴을 방지하게 된다.Meanwhile, one end of the central side member 500 is coupled to the front side member 200, and the other end 510 extends in the direction of the center floor side member 300 and the front side member 200 and the center floor side member ( It is coupled to the coupling portion of the 300 by welding, thereby preventing the other end portion 510 of the central side member 500 from occurring in the upper direction during the collision, and also the front side member 200 and the center floor side member. Supporting the coupling portions of 300 to prevent the buckling of these coupling portions.

이와 같이 사이드멤버 보강구조는 프론트사이드멤버(200)와 중앙사이드멤버(500)의 타단부(510)가 중첩된 상태에서 센터플로어사이드멤버(300)의 단부가 중앙사이드멤버(500)의 상면에 배치되고, 그 위에 보강부재(600)의 보강부(620)가 중첩된 상태에서 용접장치에 의해 중첩된 부위를 한꺼번에 결합하게 된다.As described above, the side member reinforcement structure has the front end member 200 and the other end portion 510 of the center side member 500 overlapped with the end of the center floor side member 300 on the top surface of the center side member 500. The reinforcement part 620 of the reinforcement member 600 is disposed thereon, and the overlapped portions are joined at the same time by the welding apparatus.

이와 같은 구성을 가지는 사이드멤버 보강구조의 작용을 설명하면 다음과 같다.Referring to the operation of the side member reinforcement structure having such a configuration as follows.

먼저, 차량의 정면 충돌시 엔진룸으로부터 전달되는 충돌 충격이 프론트사이드멤버(200)를 통해 센터플로어사이드멤버(300)로 전달되는데, 이때 센터플로어사이드멤버(300)의 지지력에 의해 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 결합부위가 상부방향으로 좌굴되는 현상이 발생한다.First, a collision shock transmitted from an engine room during a frontal collision of a vehicle is transmitted to the center floor side member 300 through the front side member 200, wherein the front side member (by the support force of the center floor side member 300) The coupling portion of the center 200 and the center floor member 300 is buckled upward.

그러나 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 결합부위를 보강부재(600)의 보강부(620)가 지지함에 따라 좌굴을 억제하여 센터플로어(100)의 변형을 현저하게 방지하며, 이에 따라 탑승객의 상해치를 최소화시킬 수 있다.However, as the reinforcing portion 620 of the reinforcing member 600 supports the coupling portion of the front side member 200 and the center floor side member 300, the buckling is suppressed to significantly prevent deformation of the center floor 100. Therefore, injuries of passengers can be minimized.

더욱이 보강부재(600)에 형성되는 리브(630)에 의해 보강부(620)의 강성 및 강도를 증대시킴으로써 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 결합부위의 좌굴현상을 크게 억제시킬 수 있다.Furthermore, by increasing the rigidity and strength of the reinforcing portion 620 by the rib 630 formed in the reinforcing member 600, the buckling phenomenon of the coupling portion of the front side member 200 and the center floor side member 300 is greatly suppressed. You can.

한편, 프론트사이드멤버(200)의 좌굴시 중앙사이드멤버(500)의 타단부(510)가 프론트사이드멤버(200)와 센터플로어사이드멤버(300)의 결합부위에 결합됨에 따라 정면 충돌시 프론트사이드멤버(200)와 센터플로어사이드멤버(300) 결합부위의 강성 및 강도를 더욱 보강하는 한편, 타단부(510)가 상부방향으로 일어나는 것을 방지하여 센터플로어(100)의 변형을 현저하게 방지할 수 있다.Meanwhile, when the front end member 200 is buckled, the other end portion 510 of the central side member 500 is coupled to the coupling portion of the front side member 200 and the center floor side member 300, so that the front side is struck when the front side member 200 is buckled. While further reinforcing the rigidity and strength of the member 200 and the center floor side member 300, the other end 510 may be prevented from occurring upwards, thereby significantly preventing deformation of the center floor 100. have.

따라서 상기 보강부재(600)는 정면 충돌시 도 7에 표시된 화살표와 같이, 프론트사이드멤버(200)와 센터플로어사이드멤버(300) 결합부위의 좌굴방향과 반대방향으로 힘이 전달되도록 이루어짐으로써 보행자의 상해치를 최소화시킬 수 있으며, 센터플로어사이드멤버(300)의 중량을 일정하게 유지시킬 수 있고, 공구 진입용 진입홀(110) 마감용 별도의 마감커버를 사용할 필요가 없다.Therefore, the reinforcing member 600 is a pedestrian by the force is transmitted in the direction opposite to the buckling direction of the coupling portion of the front side member 200 and the center floor side member 300, as shown by the arrow shown in FIG. Injury value can be minimized, and the weight of the center floor side member 300 can be kept constant, and there is no need to use a separate finishing cover for finishing the entrance hole 110 for entering the tool.

도 1은 종래기술에 따른 차체를 나타낸 사시도.1 is a perspective view showing a vehicle body according to the prior art.

도 2는 종래기술에 따른 사이드멤버 센터부를 나타낸 확대도.Figure 2 is an enlarged view showing the side member center portion according to the prior art.

도 3은 도 1에 표시된 A-A선 단면도.3 is a cross-sectional view taken along the line A-A shown in FIG.

도 4는 종래기술에 따른 사이드멤버 센터부의 좌굴 상태를 나타낸 단면도.Figure 4 is a cross-sectional view showing a buckling state of the side member center portion according to the prior art.

도 5는 본 발명에 따른 사이드멤버 보강구조를 나타낸 사시도.5 is a perspective view showing a side member reinforcing structure according to the present invention.

도 6은 본 발명에 따른 보강부재를 나타낸 사시도.6 is a perspective view showing a reinforcing member according to the present invention.

도 7은 도 5에 표시된 B-B선 단면도.FIG. 7 is a cross-sectional view taken along the line B-B shown in FIG. 5. FIG.

도 8은 도 5에 표시된 C-C선 단면도.8 is a cross-sectional view taken along the line C-C shown in FIG.

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

100 : 센터플로어 200 : 사이드멤버100: center floor 200: side members

300 : 센터플로어사이드멤버 400 : 시트멤버300: center floor side member 400: seat member

500 : 중앙사이드멤버 600 : 보강부재500: center side member 600: reinforcing member

610 : 절곡부 620 : 보강부610: bend portion 620: reinforcement portion

630 : 리브 640 : 개방홈630: rib 640: open groove

Claims (4)

센터플로어의 하면에 차체 길이방향으로 설치되고 대응하는 단부가 결합되는 프론트사이드멤버 및 센터플로어사이드멤버;A front side member and a center floor side member installed on a lower surface of the center floor in a longitudinal direction of the vehicle body and having corresponding ends coupled thereto; 상기 센터플로어의 상면에 차폭 방향으로 설치되는 시트멤버;A seat member installed on the upper surface of the center floor in a vehicle width direction; 상기 시트멤버를 감싸는 형태로 센터플로어의 상면에 결합되고, 저면에 센터플로어의 공구 진입용 진입홀을 통해 프론트사이드멤버 및 센터플로어사이드멤버의 결합부위에 중첩 결합되는 보강부가 구비되는 보강부재를 포함하는 것을 특징으로 하는 사이드멤버 보강구조.The reinforcing member is coupled to an upper surface of the center floor in a form surrounding the seat member, and a reinforcing member having a reinforcing part overlapped with a coupling part of the front side member and the center floor side member through an entrance hole for entering the tool of the center floor. Side member reinforcement structure, characterized in that. 청구항 1에 있어서,The method according to claim 1, 상기 보강부재는 상부로 돌출되는 리브를 추가로 포함하는 것을 특징으로 하는 사이드멤버 보강구조.The reinforcing member is a side member reinforcing structure, characterized in that it further comprises a rib protruding upward. 청구항 1에 있어서,The method according to claim 1, 상기 보강부는 상기 공구 진입용 진입홀의 내주면에 밀착되게 삽입되어 공구 진입용 진입홀을 마감하는 것을 특징으로 하는 사이드멤버 보강구조.The reinforcing part is inserted in close contact with the inner circumference of the entry hole for entering the tool side member reinforcement structure, characterized in that for closing the entry hole for tool entry. 청구항 1에 있어서,The method according to claim 1, 상기 프론트사이드멤버의 내측에는 길이방향으로 중앙사이드멤버가 설치되 며,Inside the front side member is installed a central side member in the longitudinal direction, 상기 중앙사이드멤버의 일단은 프론트사이드멤버의 선단에 결합되고 타단은 센터플로어사이드멤버 방향으로 연장되고 프론트사이드멤버 및 센터플로어사이드멤버의 결합부위에 결합되는 것을 특징으로 하는 사이드멤버 보강구조.One end of the center side member is coupled to the front end of the front side member and the other end extends in the direction of the center floor side member and side member reinforcement structure, characterized in that coupled to the coupling portion of the front side member and the center floor side member.
KR1020080102032A 2008-10-17 2008-10-17 Reinforcement structure of side member KR100957272B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107618568A (en) * 2016-07-15 2018-01-23 天津瑞林迪金属制品有限公司 Lower reinforcing plate behind preceding floor

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KR19980062504U (en) * 1997-04-03 1998-11-16 김영귀 Reinforcement panel of the vehicle side member
JP3622504B2 (en) 1998-06-05 2005-02-23 三菱自動車エンジニアリング株式会社 Connecting structure of car body members
JP2000001184A (en) * 1998-06-16 2000-01-07 Fuji Heavy Ind Ltd Vehicle body structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107618568A (en) * 2016-07-15 2018-01-23 天津瑞林迪金属制品有限公司 Lower reinforcing plate behind preceding floor

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