KR19980035830A - Bumper Beam Structure of Automobile - Google Patents

Bumper Beam Structure of Automobile Download PDF

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Publication number
KR19980035830A
KR19980035830A KR1019960054275A KR19960054275A KR19980035830A KR 19980035830 A KR19980035830 A KR 19980035830A KR 1019960054275 A KR1019960054275 A KR 1019960054275A KR 19960054275 A KR19960054275 A KR 19960054275A KR 19980035830 A KR19980035830 A KR 19980035830A
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KR
South Korea
Prior art keywords
bumper beam
vehicle
bumper
collision
beam portion
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KR1019960054275A
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Korean (ko)
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KR100243584B1 (en
Inventor
장성환
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박병재
현대자동차 주식회사
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Priority to KR1019960054275A priority Critical patent/KR100243584B1/en
Publication of KR19980035830A publication Critical patent/KR19980035830A/en
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Publication of KR100243584B1 publication Critical patent/KR100243584B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, 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
    • B60R2019/1806Structural beams therefor, e.g. shock-absorbing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00Other features of vehicle sub-units
    • B60Y2306/01Reducing damages in case of crash, e.g. by improving battery protection

Abstract

본 발명은 자동차의 범퍼빔구조에 관한 것으로, 블로워 공법으로 플라스틱 재질로 용이하게 제작할 수 있고, 또 자동차의 주행중에 충돌이나 추돌사고시에 충격을 적절히 흡수할 수 있을 뿐만 아니라 충격저항강성도 뛰어나서 탑승자 등을 보다 안전하게 보호할 수 있도록 된 자동차의 범퍼빔구조를 제공함에 그 목적이 있다.The present invention relates to a bumper beam structure of an automobile, which can be easily manufactured from a plastic material by a blower method, and can not only absorb an impact appropriately during a collision or collision accident while driving a vehicle, but also has excellent impact resistance stiffness, so that the occupant and the like can be used. The object is to provide a bumper beam structure of a vehicle that can be more securely protected.

상기한 바의 목적을 달성하기 위한 본 발명은, 차체의 폭방향을 따라 만곡되게 연장되어 범프스테이를 매개로 차체에 체결되는 빔부와, 이 빔부의 상부와 하부에 각각 형성되면서 빔부의 길이방향을 따라 연장된 4각의 로브를 갖춘 자동차의 범퍼빔에 있어서, 상기 상하의 로브사이에는 하나의 횡리브와 다수개의 종리브가 격자무늬형상으로 일체로 형성된 것을 특징으로 한다.The present invention for achieving the above object, the beam portion is bent along the width direction of the vehicle body is fastened to the vehicle body via the bump stay, and the beam portion is formed on the upper and lower portions of the beam portion, respectively, In the bumper beam of the vehicle having a four-lobed lobe extending along, one lateral rib and a plurality of longitudinal ribs are integrally formed in a lattice pattern between the upper and lower lobes.

이에 따라 플라스틱 재질로 블로워 공법을 사용해서 제작할 수 있으므로, 중량이 가볍고 제작하기가 용이할 뿐만 아니라 충돌시에 전체적으로 적절히 변형되면서 충격을 효과적으로 흡수하면서 충격저항강성도 우수하여 탑승자 등을 보다 안전하게 보호할 수 있는 효과가 있다.Accordingly, it can be manufactured using a blower method made of plastic, so it is light in weight and easy to manufacture, and it can be appropriately deformed at the time of collision, effectively absorbing shock, and excellent in impact resistance stiffness, thus protecting passengers and the like. It works.

Description

자동차의 범퍼빔구조Bumper Beam Structure of Automobile

본 발명은 자동차의 범퍼빔에 관한 것으로, 특히 플라스틱 재질로 블로워 공법으로 제작되면서 충격흡수능력이 우수하고 충격저항강성도 뛰어난 자동차의 범퍼빔구조에 관한 것이다.The present invention relates to a bumper beam of an automobile, and more particularly, to a bumper beam structure of an automobile having excellent shock absorbing ability and excellent impact resistance rigidity while being manufactured by a blower method using a plastic material.

일반적으로 자동차에는 주행중에 충돌이나 추돌사고시에 탑승자 등을 보다 안전하게 보호하기 위해 차체의 전방 및 후방에 범퍼가 장착되어 있는 바, 이 범퍼는 외면을 이루는 범퍼카바와, 충격이 가해질 때에 충격을 적절히 흡수하면서 충격저항기능을 하는 범퍼빔, 이 범퍼빔을 차체에 체결시키는 범퍼스테이 등으로 구성되어 있다.Generally, bumpers are mounted on the front and rear of the vehicle body to protect the passengers in the event of a collision or collision while driving, and the bumper covers the bumper cover forming the outer surface and absorbs the shocks when the impact is applied. The bumper beam which functions as a shock resistance, and the bumper stay which fastens this bumper beam to a vehicle body are comprised.

여기서 상기 범퍼빔은 충격저항강성을 높이기 위해 스틸재질로 만들어지는 경우에는 충격흡수능력을 향상시키기 위해 별도의 에너지 업소버가 결합되게 되어 있는 바, 이 스틸재질의 범퍼빔은 제작이 어렵고 구조가 복잡할 뿐만 아니라 제작단가도 비싸기 때문에 충격흡수능력과 충격저항강성이 우수한 플라스틱 범퍼빔을 사용하는 자동차도 있다.Where the bumper beam is made of a steel material to increase the impact resistance stiffness, a separate energy absorber is to be combined to improve the shock absorbing ability, this bumper beam of steel material is difficult to manufacture and the structure is complicated In addition, some automobiles use plastic bumper beams with excellent shock absorption and impact resistance stiffness due to their high manufacturing cost.

도 1은 상기한 종래의 플라스틱 재질로 사출성형된 범퍼빔을 도시한 것인 바, 즉 이 범퍼빔은 차체의 폭방향을 따라 길게 연장되면서 만곡되게 형성됨과 더불어 단면이 ㄷ자채널형상으로 형성된 빔부(101)와, 이 빔부의 채널속에 일체로 형성되면서 빔부의 강성을 보완하기 위해 격자무늬형상으로 형성된 다수개의 리브(102) 및, 상기 빔부를 스테이를 매개로 차체에 체결하기 위해 빔부의 좌우 양측에 각각 폐단면으로 2개씩 형성된 타워부(103)를 갖춘 구조로 되어 있다.1 is a view illustrating a bumper beam injection-molded with the conventional plastic material, that is, the bumper beam is formed to be curved while extending along the width direction of the vehicle body, and a beam portion having a cross-section having a c-channel shape ( 101, a plurality of ribs 102 formed in a lattice pattern to complement the rigidity of the beam part while being integrally formed in the channel of the beam part, and to the left and right sides of the beam part for fastening the beam part to the vehicle body via the stay. Each of them has a structure with two tower sections 103 formed in closed sections.

상기한 종래의 사출 범퍼빔이 차체에 장착된 상태에서 충격이 가해질 때에는 도 2에 도시된 바와 같이 빔부의 중앙부위가 휘어지면서 충격을 흡수해주게 되는데, 이 경우에 충격이 심할 때에는 빔부가 과도하게 휘어지면서 빔부의 중앙부위에 크랙이 발생되게 된다.When the impact is applied while the conventional injection bumper beam is mounted on the vehicle body, the center portion of the beam part is bent to absorb the shock as shown in FIG. 2. In this case, when the impact is severe, the beam part is excessively bent. As the cracks form, cracks are generated in the center of the beam part.

상기와 같은 크랙을 방지하기 위해 빔부나 리브의 두께를 크게 할 수도 있지만, 그 치수도 다른 상황을 고려할 때에 어느정도까지만 한정되어 있으므로, 사출 범퍼빔으로는 충격강성이 미흡하다고 하는 결점이 있었다.In order to prevent such cracks, the thickness of the beam portion and the ribs may be increased. However, since the dimensions are limited to a certain extent in consideration of other situations, there is a drawback that the impact stiffness is insufficient in the injection bumper beam.

이러한 결점을 해소하고, 또 제작이 용이한 블로워 공법의 범퍼빔도 제안되어 있는 바, 이 범퍼빔은 도 3에 도시된 바와 같이 차체의 폭방향을 따라 만곡되게 연장되면서 상하로 각각 2개의 폐단면을 빔부(201)로 이루어지고, 이 빔부(201)의 폭방향을 따른 중앙부위에는 ㄷ자형상의 요홈(202)이 길이방향을 따라 연장되게 형성되어 있다.The blower beam of the blower method is also proposed, which eliminates these drawbacks and is easy to manufacture. The bumper beams are curved in the width direction of the vehicle body as shown in FIG. It is made of a beam portion 201, the c-shaped groove 202 is formed to extend in the longitudinal direction in the center portion along the width direction of the beam portion 201.

상기한 종래의 블로워 범퍼빔에 충격이 가해질 때에 그 변형상태는 도 4에 단면으로 도시되어 있는 바, 즉 상기 중앙의 요홈으로 인해 빔부가 상하로 벌어지면서 폐단면부의 변형으로 충격을 적절히 흡수해주게 되어 있지만, 이 빔부의 상하 변형으로 인해 충돌차량이 차체 안쪽으로 밀려들어오면서 차체나 기타 다른 부위에 지나친 손상을 입힌다고 하는 결점이 있었다.When the impact is applied to the conventional blower bumper beam, the deformation state is shown in cross section in FIG. 4, that is, the beam portion is vertically expanded due to the central groove to absorb the impact properly by deformation of the closed end portion. However, there was a flaw that the upper and lower deformation of the beam part caused excessive damage to the car body and other parts as the crash vehicle was pushed into the car body.

이에 본 발명은 상기한 제반 결점을 해소하기 위해 안출된 것으로, 블로워 공법으로 플라스틱 재질로 용이하게 제작할 수 있고, 또 자동차의 주행중에 충돌이나 추돌사고시에 충격을 적절히 흡수할 수 있을 뿐만 아니라 충격저항강성도 뛰어나서 탑승자 등을 보다 안전하게 보호할 수 있도록 된 자동차의 범퍼빔구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been devised to solve the above-mentioned shortcomings, and can be easily manufactured by plastic material by the blower method, and can not only absorb shocks in the event of a collision or collision while driving a vehicle, but also provide impact resistance stiffness. The purpose is to provide a bumper beam structure of a car that is excellent to be able to protect the occupants and more safely.

도 1은 종래 기술에 따른 사출 범퍼빔의 사시도,1 is a perspective view of an injection bumper beam according to the prior art,

도 2는 종래 기술에 따른 사출 범퍼빔에 충격이 가해질 때에 변형상태를 나타내는 평면도,2 is a plan view showing a deformation state when an impact is applied to the injection bumper beam according to the prior art;

도 3은 종래 기술에 따른 블로워 범퍼빔의 사시도,3 is a perspective view of a blower bumper beam according to the prior art,

도 4는 종래 기술에 따른 블로워 범퍼빔에 충격이 가해질 때에 변형상태를 나타내는 단면도,4 is a cross-sectional view showing a deformation state when an impact is applied to a blower bumper beam according to the prior art;

도 5는 본 발명에 따른 블로워 범퍼빔의 사시도이다.5 is a perspective view of a blower bumper beam according to the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1:빔부2:로브1: beam part 2: robe

3:횡리브4:종리브3: horizontal rib 4: longitudinal rib

상기한 바의 목적을 달성하기 위한 본 발명은, 차체의 폭방향을 따라 만곡되게 연장되어 범퍼스테이를 매개로 차체에 체결되는 빔부와, 이 빔부의 상부와 하부에 각각 형성되면서 빔부의 길이방향을 따라 연장된 4각의 로브 및, 이 상하의 로브 사이에는 하나의 횡리브와 다수개의 종리브가 격자무늬형상으로 일체로 형성된 것을 특징으로 한다.The present invention for achieving the above object, the beam portion is extended along the width direction of the vehicle body is fastened to the vehicle body via the bumper stay, and formed in the upper and lower portions of the beam portion, respectively, the beam direction in the longitudinal direction The four-lobed lobe extending along the upper and lower lobes is characterized in that one horizontal rib and a plurality of longitudinal ribs are integrally formed in a lattice pattern.

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

도 5는 본 발명에 따른 블로워 범퍼빔의 사시도인 바, 즉 차체의 폭방향을 따라 만곡되게 연장된 빔부(1)를 갖추고, 이 빔부(1)의 상부와 하부에는 빔부의 길이방향을 따라 연장된 4각의 로브(2:robe)가 각각 형성되며, 이 상하의 로브 사이에는 하나의 횡리브(3)와 다수개의 종리브(4)가 격자무늬형상으로 일체로 형성된 구조로 되어 있다.FIG. 5 is a perspective view of a blower bumper beam according to the present invention, i.e., having a beam portion 1 which extends curved along the width direction of the vehicle body, and extends along the longitudinal direction of the beam portion at the upper and lower portions of the beam portion 1; Four square lobes (2: robe) are formed, and one horizontal rib 3 and a plurality of longitudinal ribs 4 are integrally formed in a lattice pattern between the upper and lower lobes.

상기와 같은 빔부는 플라스틱 재질로 블로워 공법으로 제작되는데, 플라스틱 재질을 사용함에 따라 빔부의 중량이 가볍게 되므로, 차량의 중량을 줄일 수 있게 되고, 또 블로워 공법을 사용함으로써 제작도 용이하게 되는 것이다.Such a beam part is manufactured by a blower method using a plastic material. As the weight of the beam part is reduced by using a plastic material, the weight of the vehicle can be reduced, and the manufacturing can be facilitated by using a blower method.

그리고 빔부의 구조적인 강성을 보완하기 위해 격자무늬형상의 보강리브가 일체로 형성되어 있기 때문에 충돌시에 충격저항강성이 우수하게 되고, 또 충돌시에 전체적으로 적절히 변형되면서 충격을 흡수하여 탑승자 등을 보다 안전하게 보호할 수 있게 된다.In addition, since the grid-like reinforcing ribs are integrally formed to complement the structural rigidity of the beam part, the impact resistance stiffness is excellent in the event of a collision, and the shock absorber is absorbed while being deformed as a whole during the collision, thereby safer the occupants. You can protect it.

이상 설명한 바와 같이 본 발명에 따른 자동차의 범퍼빔구조에 의하면, 플라스틱 재질로 블로워 공법을 사용해서 제작할 수 있으므로, 중량이 가볍고 제작하기가 용이할 뿐만 아니라 충돌시에 전체적으로 적절히 변형되면서 충격을 효과적으로 흡수하면서 충격저항강성도 우수하여 탑승자 등을 보다 안전하게 보호할 수 있는 효과가 있다.As described above, according to the bumper beam structure of the vehicle according to the present invention, since the plastic material can be manufactured using the blower method, it is light in weight and easy to manufacture, and while absorbing the impact effectively while being properly deformed overall during a collision, It also has excellent impact resistance stiffness, which has the effect of protecting the occupants more safely.

Claims (1)

차체의 폭방향을 따라 만곡되게 연장되어 범퍼스테이를 매개로 차체에 체결되는 빔부와, 이 빔부의 상부와 하부에 각각 형성되면서 빔부의 길이방향을 따라 연장된 4각의 로브를 갖춘 자동차의 범퍼빔에 있어서,Bumper beam of an automobile having a beam portion extending in a width direction of the vehicle body and fastened to the vehicle body via a bumper stay, and quadrangular lobes extending in the longitudinal direction of the beam portion, respectively, formed on the upper and lower portions of the beam portion; To 상기 상하의 로브 사이에는 하나의 횡리브와 다수개의 종리브가 격자무늬형상으로 일체로 형성된 것을 특징으로 하는 자동차의 범퍼빔구조.A bumper beam structure of a vehicle, wherein one horizontal rib and a plurality of longitudinal ribs are integrally formed in a lattice pattern between the upper and lower lobes.
KR1019960054275A 1996-11-15 1996-11-15 Structure of bumper beam of a car KR100243584B1 (en)

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Application Number Priority Date Filing Date Title
KR1019960054275A KR100243584B1 (en) 1996-11-15 1996-11-15 Structure of bumper beam of a car

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Application Number Priority Date Filing Date Title
KR1019960054275A KR100243584B1 (en) 1996-11-15 1996-11-15 Structure of bumper beam of a car

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KR19980035830A true KR19980035830A (en) 1998-08-05
KR100243584B1 KR100243584B1 (en) 2000-03-02

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CN109017650A (en) * 2018-07-24 2018-12-18 浙江摩多巴克斯科技股份有限公司 A kind of T word arc collision prevention girders and its Hydroform process

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