KR100820126B1 - Supporting structure for bumper - Google Patents

Supporting structure for bumper Download PDF

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Publication number
KR100820126B1
KR100820126B1 KR1020060121916A KR20060121916A KR100820126B1 KR 100820126 B1 KR100820126 B1 KR 100820126B1 KR 1020060121916 A KR1020060121916 A KR 1020060121916A KR 20060121916 A KR20060121916 A KR 20060121916A KR 100820126 B1 KR100820126 B1 KR 100820126B1
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KR
South Korea
Prior art keywords
bumper
back beam
side member
vehicle
bumper cover
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KR1020060121916A
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Korean (ko)
Inventor
이근철
Original Assignee
기아자동차주식회사
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Priority to KR1020060121916A priority Critical patent/KR100820126B1/en
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Publication of KR100820126B1 publication Critical patent/KR100820126B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3044—Bumpers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1886—Bumper fascias and fastening means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R2019/242—Arrangements for mounting bumpers on vehicles on two vertical sleeves, e.g. on energy absorber ends

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A supporting structure of a bumper is provided to protrude a reinforcement part, which supports two opposite ends of a bumper cover, from an outer side surface of a side member, to maintain strength of a front portion and a side portion of a vehicle in the case of the offset collision of the vehicle so that an amount of shock delivered to a passenger is minimized. A supporting structure of a bumper includes a bumper cover(10), a bumper back beam(20), and a pair of side members(30). The bumper back beam is mounted inside the bumper cover to maintain the strength. The side members vertically support the bumper back beam. A reinforcement part(140) protrudes from the outer side surface of the side member to support two opposite ends of the bumper cover deformed by an external force. The reinforcement part includes a vertical member perpendicular to the side member and a plurality of inclination members making a predetermined angle between the side member and the vertical member.

Description

범퍼지지구조 {Supporting structure for bumper}Bumper Support Structure {Supporting structure for bumper}

도 1의 (a) 및 (b)는 일반적인 정면 충돌 시험상태를 나타내는 사시도,(A) and (b) is a perspective view showing a general frontal collision test state,

도 2의 (a) 및 (b)는 일반적인 옵셋 충돌 시험상태를 나타내는 사시도,(A) and (b) are perspective views showing a general offset collision test state,

도 3은 일반적인 차량 프레임을 나타내는 구성도,3 is a block diagram showing a general vehicle frame,

도 4는 본 발명의 실시예에 범퍼지지구조를 부착한 차량 프레임의 Figure 4 is a vehicle frame of the bumper support structure attached to an embodiment of the present invention

전방부를 나타내는 구성도,       Configuration diagram showing the front part,

도 5는 본 발명에 의한 범퍼지지구조를 나타내는 상세도,5 is a detailed view showing a bumper support structure according to the present invention;

도 6의 (a) 및 (b)는 본 발명의 실시예에 따른 범퍼지지구조의 작동 상태를Figure 6 (a) and (b) is an operating state of the bumper support structure according to an embodiment of the present invention

나타내는 사시도.       Indicative perspective view.

<도면의 주요 부분에 대한 설명>Description of the main parts of the drawing

10 : 범퍼커버 20 : 범퍼백빔10: bumper cover 20: bumper back beam

30 : 사이드멤버 140 : 보강부30: side member 140: reinforcement

141 : 수직부재 142, 143 : 경사부재141: vertical member 142, 143: inclined member

본 발명은 범퍼지지구조에 관한 것으로, 사이드멤버의 전방 외측면에 범퍼커버의 양단부를 지지하는 보강부를 돌출 형성하여, 차량의 옵셋(Offset) 충돌시 전방부와 측면부의 강성을 효과적으로 유지하여 충분한 충격 흡수 기능을 수행하고 탑승객에게 전달되는 충격량을 최소화하며 프레임의 손상 없이 간이하게 보강부를 교체할 수 있도록 하여 차량의 내구성과 경제성을 향상시키는 범퍼지지구조 관한 발명이다.The present invention relates to a bumper support structure, and protrudes a reinforcing part supporting both ends of the bumper cover on the front outer surface of the side member, and effectively maintains the rigidity of the front part and the side part during an offset collision of the vehicle, thereby providing sufficient impact. The present invention relates to a bumper support structure that performs an absorption function, minimizes the amount of impact delivered to a passenger, and makes it easy to replace the reinforcement without damaging the frame, thereby improving durability and economy of the vehicle.

일반적으로 자동차의 충돌 사고시 탑승객의 안전을 확보하기 위한 테스트로는 전방 충돌과 측면 충돌 시험을 수행하며, 상기 테스트는 자동차의 안전성을 확보하는 중요한 수단으로, 국내뿐 아니라 해외 각국에서 상기 충돌시의 안전치를 법규화하여 수입허가 여부를 결정하는 판단 자료로 이용하고 있다.In general, as a test to ensure the safety of the passengers in the event of a car crash, the front crash and side crash test is performed, and the test is an important means to secure the safety of the car. Can be used as a judgment data to decide whether to permit importation.

도 1의 (a) 및 (b)는 일반적인 정면 충돌 시험상태를 나타내는 사시도인데 도 1의 (a) 및 (b)에서 도시하는 바와 같이, 일반적으로 차량의 충돌 시험 시 자동차의 정면 또는 후면의 범퍼커버(10) 중심부를 베리어(1)에 충돌하여 안전 테스트를 실시한다.Figure 1 (a) and (b) is a perspective view showing a general front crash test condition, as shown in Figures 1 (a) and (b), in general bumper of the front or rear of the vehicle during the collision test of the vehicle The safety test is performed by colliding the center of the cover 10 with the barrier 1.

도 2의 (a) 및 (b)는 일반적인 옵셋(Offset) 충돌 시험상태를 나타내는 사시 도인데, 옵셋(Offset) 충돌 시험이란 도 2의 (a) 및 (b)에서 도시하는 바와 같이 범퍼커버(10)의 양단부가 베리어(1)에 충돌하도록 전폭대비 15% ~ 40%의 옵셋(Offset)을 두어 충돌하는 편중 충돌 테스트이다. (도 3의 D 참조)2 (a) and 2 (b) are perspective views showing a general offset collision test state. The offset collision test is a bumper cover (as shown in FIGS. 2 (a) and 2 (b)). This is a one-sided collision test in which the both ends of 10) collide with an offset of 15% to 40% of the full width so as to collide with the barrier 1. (See D in FIG. 3)

참고로, 상기 40% 옵셋(Offset)은 유럽에서 적용 예정인 정면 충돌 시행 법규로 자동차의 장면 충돌 테스트에 있어 정면으로 부딪치지 않고 차량의 좌측이나 우측으로 편중하여 충돌시 베리어(Barrie, 장벽)와 충돌하는 차량 전방부 면적을 퍼센트(percent, 백분률)로 나타내는 것이다. 이는 각 나라마다 적용치가 다르며 북미에서는 100% 옵셋(Offset)을 적용하고 있다.For reference, the 40% Offset is a frontal collision enforcement law that is to be applied in Europe. The 40% offset does not collide with the front in the scene collision test of the vehicle, but shifts to the left or right side of the vehicle and collides with the barrier when the collision occurs. The front area of the vehicle is expressed as a percentage. This is different for each country and 100% offset in North America.

도 3은 일반적인 차량 프레임을 나타내는 구성도로써, 도 3에서 도시하는 바와 같이 일반적인 자동차 프레임의 구조는 범퍼커버(10)와, 상기 범퍼커버(10) 내측면에 장착되어 강성을 유지하는 범퍼백빔(20)과 상기 범퍼백빔(20)을 수직으로 지지하며 평행하게 형성된 한 쌍의 사이드멤버(30)를 포함하여 구성된다.3 is a block diagram illustrating a general vehicle frame. As shown in FIG. 3, a structure of a general vehicle frame includes a bumper cover 10 and a bumper back beam mounted on an inner surface of the bumper cover 10 to maintain rigidity. 20) and the bumper back beam 20 is vertically supported and comprises a pair of side members 30 formed in parallel.

상기와 같은 구성을 가지는 차량이 정면 충돌 시, 차량 전방부의 완충부재인 범퍼커버(10) 및 범퍼백빔(20)에서 외력에 의한 충격을 일차적으로 흡수하고 나머지 충격력에 대해서는 사이드멤버(30)가 흡수하게 된다. 범퍼백빔(20) 및 사이드멤버(30)와 이들의 결합부는 구조적으로 높은 응력이 있어, 정면 충돌에 대하여는 외부 충격량을 원활하게 흡수하여 큰 반력을 지니는 장점을 가지게 되고, 현재 국내 에서 생산되는 자동차의 대부분이 전방 충돌에 대해서는 양호한 수준의 강성을 가진 것으로 평가받고 있다.When the vehicle having the above configuration has a frontal collision, the bumper cover 10 and the bumper back beam 20, which are shock absorbing members at the front of the vehicle, absorb the impact of external force primarily and the side member 30 absorbs the remaining impact force. Done. The bumper back beam 20 and the side member 30 and their joints are structurally high in stress, and thus have the advantage of having a large reaction force by smoothly absorbing an external impact against a frontal collision and having a large reaction force. Most of them are considered to have good stiffness for forward collisions.

그러나 범퍼백빔(20)은 한정된 길이로 형성되어 차량의 중심부에 한하여 범퍼커버(10)를 지지하며 일반적으로 범퍼백빔(20) 측면에는 포그램프(2)가 위치하여 범퍼백빔(20)의 측면부를 연장할 수 없어 범퍼백빔(20)으로 보강되지 않는 범퍼커버(10)의 양단부에 대해서는 외력에 의한 충격을 흡수하는 수단이 구비되어 있지 않았다. However, the bumper back beam 20 is formed to have a limited length to support the bumper cover 10 only in the center of the vehicle, and in general, a pogram 2 is positioned at the side of the bumper back beam 20 so that the side portion of the bumper back beam 20 is located. There is no means for absorbing the impact by external force on both ends of the bumper cover 10 which cannot be extended and is not reinforced by the bumper back beam 20.

따라서 차량이 편중된 방향으로 충돌체에 옵셋(Offset) 충돌을 하는 경우, 범퍼백빔(20)은 범퍼커버(10)의 중심부에 한하여 외력을 흡수하게 되므로 차체의 범퍼백빔(20) 및 사이드멤버(30)의 구조는 옵셋(Offset) 충돌에 대한 강성이 취약하였고, 옵셋(Offset) 충격에는 취약한 강성을 가지게 된 차체의 구조상 옵셋(Offset) 충돌 시험시 전방 충돌에 대해서는 높은 강성을 보유한 구조임에도 상기 테스트 기준에 부합하지 못하는 경우가 있었다.Therefore, when the vehicle collides with the collision body in an offset direction, the bumper back beam 20 absorbs the external force only at the center of the bumper cover 10, and thus the bumper back beam 20 and the side member 30 of the vehicle body. ) Is a structure that has a high rigidity for forward collision during the structural collision test of the vehicle which has a stiffness against offset collision and a weak rigidity against offset impact. There was a case that did not meet.

또한 옵셋(Offset) 방향의 충격에 대해서는 취약한 구성을 가지는 차체의 구조상, 상기의 편중 충격이 차체에 극심한 변형 및 파손을 초래하고 심한 경우 차량 후방에 위치한 엔진 룸을 실내로 밀려가는 원인이 되어 탑승객의 안전을 크게 위협하는 문제점을 내재하고 있었다.In addition, due to the structure of the vehicle body having a weak configuration against the impact of the offset (Offset), the above-mentioned one-sided impact causes extreme deformation and damage to the vehicle body, and in severe cases pushes the engine room located behind the vehicle into the room, There was a problem that greatly threatened safety.

본 발명은 상기의 문제점을 해결하기 위한 것으로, 사이드멤버의 전방 외측면에 범퍼커버의 양단부를 지지하는 보강부를 돌출 형성하여, 차량의 옵셋(Offset) 충돌시 전방부와 측면부의 강성을 효과적으로 유지하여 충분한 충격 흡수를 수행하고 탑승객에게 전달되는 충격량을 최소화하고 프레임의 손상 없이 보강부를 간이하게 교체할 수 있도록 하여 차량의 내구성과 경제성을 향상시키는 범퍼지지구조를 제공하는데 그 목적이 있다.The present invention is to solve the above problems, by forming a reinforcement for supporting both ends of the bumper cover on the front outer surface of the side member to effectively maintain the stiffness of the front portion and the side portion during offset collision of the vehicle The object of the present invention is to provide a bumper support structure that performs sufficient shock absorption, minimizes the amount of impact delivered to the passengers, and makes it possible to easily replace the reinforcement without damaging the frame.

상기의 문제점을 해결하기 위하여 본 발명은 범퍼커버와, 상기 범퍼커버 내측면에 장착되어 강성을 유지하는 범퍼백빔과 상기 범퍼백빔을 수직으로 지지하는 한 쌍의 사이드멤버를 포함하여 구성된 범퍼지지구조에 있어서, 상기 사이드멤버의 전방 외측면에 외력에 의해 변형되는 범퍼커버 양단부를 지지하는 보강부가 돌출 형성된 것을 특징으로 한다.In order to solve the above problems, the present invention provides a bumper cover structure including a bumper cover, a bumper back beam mounted on an inner surface of the bumper cover to maintain rigidity, and a pair of side members vertically supporting the bumper back beam. The reinforcing part supporting both ends of the bumper cover deformed by an external force is formed on the front outer surface of the side member.

이하 첨부한 도면에 의하여 본 발명의 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명의 실시예에 범퍼지지구조를 부착한 차량 프레임의 전방부를 나타내는 구성도이고, 도 5는 본 발명에 의한 범퍼지지구조를 나타내는 상세도이며, 도 6의 (a) 및 (b)는 본 발명의 실시예에 따른 범퍼지지구조의 작동 상태를 나 타내는 사시도이다.Figure 4 is a configuration diagram showing the front portion of the vehicle frame with a bumper support structure in an embodiment of the present invention, Figure 5 is a detailed view showing a bumper support structure according to the present invention, Figures 6a and 6b ) Is a perspective view showing an operating state of the bumper support structure according to the embodiment of the present invention.

도 4 내지 도 5에서 도시하는 바와 같이 본 발명은 범퍼커버(10)와, 상기 범퍼커버(10) 내측면에 장착되어 강성을 유지하는 범퍼백빔(20)과 상기 범퍼백빔(20)을 수직으로 지지하는 한 쌍의 사이드멤버(30)를 포함하여 구성된 범퍼지지구조에 있어서, 상기 사이드멤버(30)의 전방 외측면에 외력에 의해 변형되는 범퍼커버(10) 양단부를 지지하는 보강부(140)가 돌출 형성된 것을 특징으로 한다.As shown in FIGS. 4 to 5, the present invention includes a bumper cover 10, a bumper back beam 20 mounted on an inner surface of the bumper cover 10 to maintain rigidity, and the bumper back beam 20 vertically. In the bumper support structure including a pair of side members 30 to support, the reinforcement part 140 for supporting both ends of the bumper cover 10 which is deformed by an external force on the front outer surface of the side member 30. It is characterized in that the protrusion formed.

상기 보강부(140)는 사이드멤버(30)의 전방 외측면에 장착되는데, 사이드멤버(30)와 범퍼백빔(20)과의 결합부에 근접하여, 즉 범퍼커버(10) 양 단부가 베리어(1)와의 충돌로 인해 충격량이 가해지는 방향으로 변형하는 경우 변형된 상기 범퍼커버(10) 양단부를 지지할 수 있을 정도의 위치에 설치된다. 상기 보강부(140)는 사이드멤버(30)와 일체로 형성될 수도 있으나 본 발명의 실시예에서는 볼트, 나사 등의 통상적인 결합 방법에 의해 간이하게 탈부착할 수 있도록 조립하는 것이 타당하다. The reinforcement part 140 is mounted on the front outer surface of the side member 30, and close to the coupling portion between the side member 30 and the bumper back beam 20, that is, both ends of the bumper cover 10 are barriers ( When deformed in the direction in which the impact amount is applied due to the collision with 1) is installed at a position enough to support the both ends of the deformed bumper cover (10). The reinforcement part 140 may be integrally formed with the side member 30, but in the embodiment of the present invention, it is reasonable to assemble the detachable part so that the reinforcement part 140 can be easily detached by a conventional coupling method such as a bolt or a screw.

상기 보강부(140)는 철봉으로 형성된 지지부재를 일정 길이로 절단하여 상기 사이드멤버(30)에 결합하는 방법으로 실시할 수 있는데, 이에 대한 일 예로 상기 사이드멤버(30)와 직각을 이루며 결합하는 수직부재(141)와, 상기 사이드멤버(30)와 상기 수직부재(141)를 소정 각도를 이루며 연결하는 복수개의 경사부재(142, 143)로 구성할 수 있다.The reinforcement part 140 may be implemented by cutting the support member formed of the iron rod to a predetermined length and coupling the side member 30. For example, the reinforcement part 140 is coupled to form the right angle with the side member 30. The vertical member 141, the side member 30 and the vertical member 141 may be composed of a plurality of inclined members (142, 143) connecting at a predetermined angle.

상기 실시예의 경우, 수직부재(141)를 사이드멤버(30)상에 상기 사이드멤버(30)와 직각을 이루도록 결합하며, 상기 수직부재(141)를 중심으로 한 쌍의 경사부재(142, 143)를 대향으로 상기 사이드멤버(30)에 볼트, 너트 등의 통상적인 결합수단을 통하여 고정 결합한다. 이 때 상기 경사부재(142, 143)는 상기 사이드멤버(30)와 소정 각도를 이루도록 고정하여 끝단부가 상기 수직부재에 수렴하여 상기 수직부재(141) 및 한 쌍의 경사부재(142, 143)의 끝단부가 꼭지점을 이루는 삼각형상을 형성할 수 있도록 구성하여 실시함이 타당하다. In this embodiment, the vertical member 141 is coupled to form a right angle with the side member 30 on the side member 30, a pair of inclined members 142, 143 around the vertical member 141 Oppositely fixed to the side member 30 through a conventional coupling means such as bolts, nuts. At this time, the inclined members 142 and 143 are fixed to form a predetermined angle with the side member 30 so that the end portion converges to the vertical member so that the vertical member 141 and the pair of inclined members 142 and 143 are formed. It is reasonable to construct so that the end portion can form a triangular shape forming a vertex.

또한 차량의 충돌 시 상기 사이드멤버(30)에는 손상을 주지 않으며 상기 수직부재(141) 및 한 쌍의 경사부재(142, 143)만 변형을 일으키게 하기 위하여 상기 수직부재(141) 및 한 쌍의 경사부재(142, 143)는 적절한 강도를 가질 수 있는 사이즈를 가지도록 실시함이 타당한데, 이를 위한 일 예로 상기 수직부재(141)는 직경 40mm에 3mm의 두께를 가지는 금속부재 봉으로 형성하고, 상기 경사부재(142, 143)는 직경 25mm에 3mm의 두께를 가지는 금속부재 봉으로 형성하여 상기 수직부재(141) 및 한 쌍의 경사부재(142, 143)의 끝단부를 용접 등의 방법으로 고정하여 실시한다.In addition, the vertical member 141 and the pair of inclinations do not damage the side member 30 when the vehicle collides, so that only the vertical member 141 and the pair of inclined members 142 and 143 cause deformation. The members 142 and 143 are appropriate to have a size that can have a suitable strength, for example, the vertical member 141 is formed of a metal member rod having a thickness of 3mm to 40mm in diameter, The inclined members 142 and 143 are formed of a metal member rod having a thickness of 25 mm and a diameter of 25 mm to fix the ends of the vertical member 141 and the pair of inclined members 142 and 143 by welding or the like. do.

도 6의 (a) 및 (b)는 본 발명의 실시예에 따른 범퍼지지구조의 작동 상태를 나타내는 사시도이다. 이를 참조하여 본 발명의 작용, 효과를 설명한다.6 (a) and 6 (b) are perspective views showing an operating state of the bumper support structure according to the embodiment of the present invention. The operation and effects of the present invention will be described with reference to this.

본 발명의 실시예에 따르면, 도 6의 (a)는 차량과 베리어(1)의 옵셋 충돌 전의 보강부(140)의 형상을 도시하며, 도 6의 (b)는 차량과 베리어(1)의 옵셋 충돌 이후 변형된 보강부(140)의 형상을 도시한다. According to an embodiment of the invention, Figure 6 (a) shows the shape of the reinforcing portion 140 before the offset collision between the vehicle and the barrier (1), Figure 6 (b) shows the shape of the vehicle and the barrier (1) The shape of the deformed reinforcement part 140 after the offset collision is illustrated.

상기 보강부(140) 구조는 배리어(1)와의 옵셋 충돌 시 발생하는 충격량을 지지할 수 있는 구조로 반력을 가질 수 있도록 실시되어 진다. 즉, 충격량은 중량 * 속도이므로 공차중량을 2.5톤이라고 가정하고 실험속도는 5km/h 이므로 2,500kg * 5km/h = 34,722kgm/s 정도의 충격량을 버틸수 있도록 보강부(140)를 장착하여 실시하고 상기와 같은 구성의 경우 이러한 조건을 만족하게 된다.The reinforcement part 140 is configured to have a reaction force in a structure capable of supporting an amount of impact generated when an offset collision with the barrier 1 occurs. That is, the impact amount is weight * speed, so the tolerance weight is 2.5 tons, and the test speed is 5km / h. Therefore, the reinforcement part 140 is mounted to carry the impact amount of about 2,500kg * 5km / h = 34,722kgm / s. In the case of the above configuration, such a condition is satisfied.

따라서 상기 베리어(10)와의 옵셋 충격에 의해 범퍼커버(10)의 양 단부가 충격 방향으로 변형되어 변형된 범퍼커버(10) 양단부가 상기 지지부(140)에 응력을 가하게 되고 이는 상기 고정부재(141) 및 경사부재(142, 143)로 이루어진 지지부(140)를 변형시킨다.Accordingly, both ends of the bumper cover 10 are deformed in the impact direction by an offset impact with the barrier 10, so that both ends of the deformed bumper cover 10 exert stress on the support 140, which is the fixing member 141. ) And the support 140 formed of the inclined members 142 and 143.

변형 전 상기 고정부재(141)와 복수의 경사부재(142, 143)는 등각(θ1)을 이루어 형성되어 있으며, 상기 충격에 의해 고정부재(141)와 각각의 경사부재(142, 143)는 이각(θ2, θ3)을 형성하며 외형이 변형되어 충돌에 의한 충격량을 흡수하 여, 상기 사이드멤버(30)의 변형 및 손상을 방지하고 탑승객에게 전달되는 충격량을 최소화한다. 또한 변형된 지지부(140)는 손쉽게 교체할 수 있어 작업성을 향상시키는 이점도 발휘하게 된다. Before the deformation, the fixing member 141 and the plurality of inclined members 142 and 143 are formed at an equiangular angle θ1, and the fixing member 141 and each of the inclined members 142 and 143 are bilateral by the impact. Form (θ2, θ3) and the outer shape is deformed to absorb the impact amount due to the collision, to prevent deformation and damage of the side member 30 and to minimize the amount of impact delivered to the passengers. In addition, the deformed support portion 140 can be easily replaced to exhibit the advantage of improving workability.

이상에서 설명한 바와 같이, 본 발명은 범퍼지지구조에 관한 것으로, 사이드멤버의 전방 외측면에 범퍼커버의 양단부를 지지하는 보강부를 돌출 형성하여, 차량의 정면 충돌시 효과적인 충격 흡수 및 완충을 수행하는 것은 물론, 옵셋(Offset) 충돌시에도 전방부와 측면부의 강성을 효과적으로 유지하여 충분한 충격 흡수를 수행하고 탑승객에게 전달되는 충격량을 최소화하며 프레임의 손상 없이 간이하게 보강부를 교체할 수 있도록 하여 차량의 내구성과 경제성을 향상시키는 범퍼지지구조 관한 발명이다.As described above, the present invention relates to a bumper support structure, and protruding a reinforcing part supporting both ends of the bumper cover on the front outer surface of the side member, so as to perform effective shock absorption and cushioning during frontal collision of the vehicle. Of course, the front and side stiffness effectively maintains the rigidity of the front and side in the event of an offset collision, so that sufficient shock absorption can be achieved, the amount of impact delivered to the passengers can be minimized, and the reinforcement can be easily replaced without damaging the frame. The present invention relates to a bumper support structure for improving economics.

Claims (3)

범퍼커버와, 상기 범퍼커버 내측면에 장착되어 강성을 유지하는 범퍼백빔과 상기 범퍼백빔을 수직으로 지지하는 한쌍의 사이드멤버를 포함하여 구성된 범퍼지지구조에 있어서,In the bumper support structure comprising a bumper cover, a bumper back beam mounted on the inner surface of the bumper cover to maintain rigidity and a pair of side members vertically supporting the bumper back beam, 상기 사이드멤버의 전방 외측면에 외력에 의해 변형되는 범퍼커버 양단부를 지지하는 보강부가 돌출 형성된 것을 특징으로 하는 범퍼지지구조. And a reinforcement part protruding from the front outer surface of the side member to support both ends of the bumper cover that is deformed by an external force. 제 1항에 있어서, The method of claim 1, 상기 보강부는 상기 사이드멤버와 직각을 이루며 결합하는 수직부재와, 상기 사이드멤버와 상기 수직부재를 소정 각도를 이루며 연결하는 복수개의 경사부재로 이루어지는 것을 특징으로 하는 범퍼 지지구조.The reinforcing part is a bumper supporting structure, characterized in that it comprises a vertical member for coupling at a right angle with the side member, and a plurality of inclined members for connecting the side member and the vertical member at a predetermined angle. 제 2항에 있어서,The method of claim 2, 상기 수직부재는 직경 40mm에 3mm의 두께를 가지는 금속부재 봉으로 형성되며, 상기 경사부재는 직경 25mm에 3mm의 두께를 가지는 금속부재 봉으로 형성되는 것을 특징으로 하는 범퍼 지지구조. The vertical member is formed of a metal member rod having a thickness of 3mm in diameter 40mm, the inclined member is formed of a metal member rod having a thickness of 3mm in diameter 25mm.
KR1020060121916A 2006-12-05 2006-12-05 Supporting structure for bumper KR100820126B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133549U (en) 1978-03-08 1979-09-17
JPS5698761U (en) 1979-12-28 1981-08-04
JPS5757140U (en) 1980-09-24 1982-04-03
JPS5792560U (en) 1980-11-28 1982-06-07
JPS60156059U (en) 1984-03-29 1985-10-17 いすゞ自動車株式会社 Bumper side vehicle body panel deformation prevention device
US4783104A (en) * 1986-02-17 1988-11-08 Nissan Motor Company, Ltd. Bumper assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133549U (en) 1978-03-08 1979-09-17
JPS5698761U (en) 1979-12-28 1981-08-04
JPS5757140U (en) 1980-09-24 1982-04-03
JPS5792560U (en) 1980-11-28 1982-06-07
JPS60156059U (en) 1984-03-29 1985-10-17 いすゞ自動車株式会社 Bumper side vehicle body panel deformation prevention device
US4783104A (en) * 1986-02-17 1988-11-08 Nissan Motor Company, Ltd. Bumper assembly

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