KR100233502B1 - Side impact reinforcing structure of passenger car - Google Patents

Side impact reinforcing structure of passenger car Download PDF

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Publication number
KR100233502B1
KR100233502B1 KR1019950047039A KR19950047039A KR100233502B1 KR 100233502 B1 KR100233502 B1 KR 100233502B1 KR 1019950047039 A KR1019950047039 A KR 1019950047039A KR 19950047039 A KR19950047039 A KR 19950047039A KR 100233502 B1 KR100233502 B1 KR 100233502B1
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KR
South Korea
Prior art keywords
reinforcing member
side seal
welded
door
passenger car
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KR1019950047039A
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Korean (ko)
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KR970041181A (en
Inventor
한경식
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정몽규
현대자동차주식회사
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Priority to KR1019950047039A priority Critical patent/KR100233502B1/en
Publication of KR970041181A publication Critical patent/KR970041181A/en
Application granted granted Critical
Publication of KR100233502B1 publication Critical patent/KR100233502B1/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
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02—Side panels

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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 발명은 승용차에 측면충돌이 가해질 때 그 충격에너지를 도어와 사이드 씰내에서 흡수하도록 하는 승용차의 측면충돌 보강구조에 관한 것이다.The present invention relates to a side collision reinforcement structure of a passenger car to absorb the impact energy in the door and the side seal when a side collision is applied to the passenger car.

본 발명의 구성은 중간에 단차가 형성되고 전방에 하향으로 길게 플랜지(1)가 형성되는 단면형상의 제1보강부재(2)를 측면충돌에 대한 충격에너지의 1차흡수가 가능하게 도어외측패널(3) 하단과 도어내측패널(4) 하단내에 용접하고, 충격하중 작용방향으로 양측에 경사면을 이루고 그 중간과 사이드 씰 내측패널간(7)에 지지부재(6)가 충격하중 작용방향으로 용접되는 단면형상의 제2보강부재(5)를 사이드 씰 외측패널(8) 상단방향으로의 충격에너지의 1차흡수와 상기 제1보강부재(2)의 침입에 따른 2차흡수의 동시작용이 가능하게 상기 사이드 씰 내측패널(7) 상하단에 용접시킨 것이다.According to the configuration of the present invention, the door outer panel enables the first absorption of impact energy against side impacts to the first reinforcing member 2 having a cross-sectional shape in which a step is formed in the middle and the flange 1 is elongated downward. (3) The lower end is welded in the lower end of the inner panel 4 of the door, and the inclined surface is formed on both sides in the impact load acting direction, and the support member 6 is welded between the middle and the side seal inner panel 7 in the impact load acting direction. The second reinforcing member 5 having a cross-sectional shape of the cross-sectional shape is capable of simultaneously absorbing the first absorption of the impact energy toward the upper side of the side seal outer panel 8 and the second absorption due to the intrusion of the first reinforcing member 2. It is welded to the upper and lower ends of the side seal inner panel (7).

Description

승용차의 측면충돌 보강구조Side collision reinforcement structure of passenger car

제1도는 본 발명의 적용부위를 예시한 차량사시도.1 is a perspective view of a vehicle illustrating the application of the present invention.

제2도는 제1도의 A-A선에 해당하는 본 발명의 실시예의 종단면도.2 is a longitudinal cross-sectional view of an embodiment of the present invention corresponding to line A-A in FIG.

제3도는 본 발명의 측면충돌에 따른 변형후의 예시도.3 is an exemplary view after deformation according to the side impact of the present invention.

제4도는 제1도의 A-A선에 해당하는 종래의 승용차 측면하부와 측면충돌에 대한 설명도.4 is an explanatory view of the side lower side and side collision of the conventional passenger car corresponding to the A-A line of FIG.

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

1 : 플랜지 2 : 제1보강부재1 Flange 2 First reinforcing member

5 : 제2보강부재 6 : 지지부재5: second reinforcing member 6: supporting member

본 발명은 승용차에 측면충돌이 가해질 때 그 충격에너지를 도어와 사이드 씰내에서 흡수하도록 하는 승용차의 측면충돌 보강구조에 관한 것이다.The present invention relates to a side collision reinforcement structure of a passenger car to absorb the impact energy in the door and the side seal when a side collision is applied to the passenger car.

종래의 승용차 도어에는 제4도와 같이 도어외측패널(21) 내면과 접하는 임팩트 빔(22)을 도어 하부측에 가로질러 설치하고 있었다.In the conventional passenger car door, the impact beam 22 contacting the inner surface of the door outer panel 21 is provided across the lower door side as shown in FIG.

상기 임팩트 빔(22)은 대차(23)가 화살표방향으로 측면충돌할 경우에 그 충격에너지를 흡수하는 기능을 수행하지만 임팩트 빔(22)이 소탄성변형되는 탄성한도를 넘어 항복점 이상의 충격하중을 받게 되면 쉽게 휘어져 들어가기 때문에 가상선 표시와 같이 도어외측패널(21)은 물론 도어내측패널(24)과 사이드 씰(25)까지 변형되면서 실내로 밀려들어와 차체의 큰 손상은 물론 실내의 승객 상해치가 그 만큼 높아지는 문제가 있는 것이다.The impact beam 22 absorbs the impact energy when the bogie 23 laterally collides in the direction of the arrow, but the impact beam 22 receives an impact load beyond the yield point beyond the elastic limit at which the impact beam 22 is elastically deformed. As it is easily bent, the door outer panel 21 as well as the door inner panel 24 and the side seal 25 are deformed and pushed into the room as shown in the virtual line, so that the car body is damaged as well as the passenger injury in the room. There is a rising problem.

상기에서 차체가 실내로 크게 밀려들어올 때에 침입량이 많은 부위는 대차(23)의 P1과 P2지점과 만나는 도어 하단과 사이드 씰(25) 상단부위로서 이 부위가 깊이 밀려들어가면 승객의 골반부위에 충격이 크게 전해지는 것이다.In the above, when the vehicle body is greatly pushed into the room, the invasive part is the lower part of the door and the upper part of the side seal 25 that meet the P 1 and P 2 points of the trolley 23. The shock is greatly transmitted.

본 발명의 목적은 측면충돌시에 취약한 부위인 도어하단과 사이드 씰 상단의 강성을 높여 차체의 변형을 방지하고 동시에 충격에너지의 흡수가 유리한 구조를 취하여 승객을 보호코자 하는 데 있는 것이다.An object of the present invention is to protect the passengers by increasing the rigidity of the lower door and the upper side seals, which are vulnerable in the event of side collision, to prevent deformation of the vehicle body and at the same time take advantage of the structure of the absorption of impact energy.

본 발명은 상기 목적을 달성하기 위하여, 중간에 단차가 형성되고 전방에 하향으로 길게 플랜지가 형성되는 단면형상의 제1보강부재를 측면충돌에 대한 충격에너지의 1차흡수가 가능하게 도어외측패널 하단과 도어내측패널 하단내에 용접하고, 충격하중 작용방향으로 양측에 경사면을 이루고 그 중간과 사이드 씰 내측패널간에 지지부재가 충격하중 작용방향으로 용접되는 단면형상의 제2보강부재를 사이드 씰 외측패널 상단방향으로의 충격에너지의 1차흡수와 상기 제1보강부재의 침입에 따른 2차흡수의 동시작용이 가능하게 상기 사이드 씰 내측패널 상하단에 용접시킨 것이다.In order to achieve the above object, the first reinforcing member having a cross-sectional shape in which a step is formed in the middle and a flange is elongated downward is formed in front of the door outer panel to enable the first absorption of impact energy against side impacts. And a second reinforcing member having a cross-sectional shape in which the inner side of the door inner panel is welded and formed inclined surfaces on both sides in the direction of impact load and the support member is welded in the direction of impact load between the middle and the side seal inner panel. It is welded to the upper and lower ends of the side seal inner panel to enable simultaneous action of the primary absorption of the impact energy in the direction and the secondary absorption due to the intrusion of the first reinforcing member.

이하 본 발명의 실시예를 도면에 의하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the drawings.

본 발명은 제1도와 같이 차량의 도어(B) 하단과 사이드 씰(C)의 길이방향으로 적용된다.The present invention is applied in the longitudinal direction of the lower side of the door (B) and the side seal (C) of the vehicle as shown in FIG.

본 발명은 제2도와 같이 중간에 단차가 위로 돌출하도록 형성되고 전방에 하향으로 길게 플랜지(1)가 형성되는 단면형상의 제1보강부재(2)를 도어외측패널(3) 하단과 도어내측패널(4) 하단내에 용접한 것으로, 특히 제1보강부재(2)의 플랜지(1)는 하부의 도어외측패널(3)과 도어내측패널(4)의 끝말이 부위까지 내려와 용접된다.According to the present invention, the first reinforcing member (2) having a cross-sectional shape, in which a step (1) is formed to protrude upward in the middle and the flange (1) is formed downward in the front, is formed in the lower side of the door outer panel (3) and the door inner panel. (4) In the lower end, in particular, the flange 1 of the first reinforcing member 2 is welded with the end of the lower door outer panel 3 and the door inner panel 4 descending to the site.

상기 제1보강부재(2)는 제4도에 예시하는 대차(23)의 P1지점이 침입하는 충격하중의 작용방향으로 설치되어 있다.The first reinforcing member 2 is provided in the direction of action of the impact load that the point P 1 of the trolley 23 illustrated in FIG.

또, 제4도에 예시하는 대차(23)의 P2지점이 침입하는 충격하중의 작용방향으로 양측에 경사면을 이루는 단면형상의 제2보강부재(5)는 상기 P2지점이 침입하는 충격하중의 작용방향으로 지나가는 지지부재(6)가 경사면 중간과 사이드 씰 내측패널(7)의 내측면 사이에 용접되는 단면형상을 취하여 사이드 씰 내측패널(7)과 사이드 씰 외측패널(8)의 접합점인 상단과 사이드 씰(7) 하단측면에 제2보강부재(5)의 양단을 용접시킨 것이다.In addition, the second reinforcing member 5 having a cross-sectional shape that forms an inclined surface on both sides in the action direction of the impact load penetrating the point P 2 of the bogie 23 illustrated in FIG. 4 has an impact load that the point P 2 penetrates. The supporting member 6 passing in the direction of action of the cross section is welded between the middle of the inclined surface and the inner surface of the side seal inner panel 7, and is a junction point of the side seal inner panel 7 and the side seal outer panel 8. Both ends of the second reinforcing member 5 are welded to the upper end and the lower side of the side seal 7.

미설명부호 9는 임팩트 빔이다.Reference numeral 9 denotes an impact beam.

따라서, 제4도와 같은 조건으로 대차(23)가 측면충돌하게 되면 제3도와 같이 변형하게 되는데, 이때 도어(B)측에서는 대차(23)의 P1지점이 침입하는 것을 제1보강부재(2)가 중간의 단차부분이 오그라들면서 그 측면충돌에 대한 충격에너지를 1차로 흡수하게 된다.Accordingly, when the trolley 23 collides sideways under the same conditions as in FIG. 4, the trolley 23 is deformed as shown in FIG. 3, in which the first reinforcing member 2 enters the point P 1 of the trolley 23 at the door B side. As the stepped portion in the middle is shrunk, the impact energy for the side impact is absorbed first.

한편, 사이드 씰(C)측에서는 대차(23)의 P2지점이 사이드 씰 외측패널(8) 상단쪽으로 침입하는 것을 제2보강부재(5)가 저지하고 지지부재(6)는 중간이 꺾여지면서 그 측면충돌에 대한 충격에너지를 1차로 흡수하게 된다.On the other hand, at the side seal C side, the second reinforcing member 5 prevents the P 2 point of the trolley 23 from entering the upper end of the side seal outer panel 8, and the supporting member 6 is bent in the middle. It absorbs the impact energy for the side impacts first.

또, 제1보강부재(2)가 깊이 밀려들어올 때 제2보강부재(5)의 전면(제3도의 우측)에는 제1보강부재(2)의 하단 플랜지(1)부분이 걸리게 되므로 결국 제2보강부재(5)가 후속적으로 측면충돌에 대한 충격에너지의 2차흡수를 행하게 되는 것이다.In addition, when the first reinforcing member 2 is pushed deeply, the lower flange 1 portion of the first reinforcing member 2 is caught on the front surface (right side of FIG. 3) of the second reinforcing member 5, so that the second The reinforcing member 5 subsequently performs secondary absorption of the impact energy against side impacts.

이에 따라 실질적으로 제1보강부재(2)와 제2보강부재(5) 및 지지부재(6)를 설치하지 않았을 때 보다 도어(B)와 사이드 씰(C)을 포함하는 차체가 실내로 밀려들어가는 정도는 현저하게 감소되는 것이다.Accordingly, when the first reinforcing member 2, the second reinforcing member 5, and the supporting member 6 are not installed, the vehicle body including the door B and the side seal C is pushed into the room. The extent is significantly reduced.

이와 같은 본 발명은 상기와 같이 도어내에 제1보강부재를, 사이드 씰내에 제2보강부재와 지지부재를 설치하여 측면충돌에 대한 충격에너지를 1,2차에 걸쳐 흡수하고 지지케 한 것으로서, 차체의 강성을 유지하여 사이드 씰을 비롯한 도어가 실내로 밀려들어가지 않게 하므로써 차체의 변형방지와 실내승객을 보호할 수 있는 효과가 있는 것이다.As described above, the present invention provides the first reinforcing member in the door and the second reinforcing member and the supporting member in the side seal to absorb and support the impact energy against side impacts in the first and second stages. By maintaining the rigidity of the door, such as the side seal to prevent the door from being pushed into the room has the effect of preventing the deformation of the car body and protect the passengers.

Claims (1)

중간에 단차가 형성되고 전방에 하향으로 길게 플랜지가 형성되는 단면형상의 제1보강부재를 측면충돌에 대한 충격에너지의 1차흡수가 가능하게 도어외측패널의 하단과 도어내측패널 하단내에 용접하고, 충격하중 작용방향으로 양측에 경사면을 이루고 그 중간과 사이드 씰 내측패널간에 지지부재가 충격하중 작용방향으로 용접되는 단면형상의 제2보강부재를 사이드 씰 외측패널 상단방향으로의 충격에너지의 1차흡수와 상기 제1보강부재의 침입에 따른 2차흡수의 동시작용이 가능하게 상기 사이드 씰 내측패널 상하단에 용접시킨 승용차의 측면충돌 보강구조.A first reinforcing member having a cross-sectional shape having a step formed in the middle and a flange extending downwards in front is welded in the lower end of the outer door panel and the lower end of the inner door panel to enable primary absorption of the impact energy against side collision. Primary absorption of the impact energy toward the upper side of the side seal outer panel by the second reinforcing member having a sloping surface on both sides in the direction of impact load action, and the supporting member welded in the direction of impact load between the middle and the side seal inner panel. And a side collision reinforcement structure of a passenger car welded to the upper and lower ends of the side seal inner panel to simultaneously perform secondary absorption due to the intrusion of the first reinforcing member.
KR1019950047039A 1995-12-06 1995-12-06 Side impact reinforcing structure of passenger car KR100233502B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950047039A KR100233502B1 (en) 1995-12-06 1995-12-06 Side impact reinforcing structure of passenger car

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Application Number Priority Date Filing Date Title
KR1019950047039A KR100233502B1 (en) 1995-12-06 1995-12-06 Side impact reinforcing structure of passenger car

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KR970041181A KR970041181A (en) 1997-07-24
KR100233502B1 true KR100233502B1 (en) 1999-12-01

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KR1019950047039A KR100233502B1 (en) 1995-12-06 1995-12-06 Side impact reinforcing structure of passenger car

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