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KR100448142B1 - Bumper stay for vehicle - Google Patents

Bumper stay for vehicle Download PDF

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Publication number
KR100448142B1
KR100448142B1 KR10-2001-0052070A KR20010052070A KR100448142B1 KR 100448142 B1 KR100448142 B1 KR 100448142B1 KR 20010052070 A KR20010052070 A KR 20010052070A KR 100448142 B1 KR100448142 B1 KR 100448142B1
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KR
South Korea
Prior art keywords
bumper
bumper stay
stay
aluminum
vehicle
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
KR10-2001-0052070A
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Korean (ko)
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KR20030018366A (en
Inventor
권용우
Original Assignee
현대자동차주식회사
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Priority to KR10-2001-0052070A priority Critical patent/KR100448142B1/en
Publication of KR20030018366A publication Critical patent/KR20030018366A/en
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Classifications

    • 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
    • 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
    • B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
    • 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
    • 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
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • 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

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

Abstract

본 발명은 자동차용 범퍼 스테이에 관한 것으로서, 기존에 3개의 단품을 프레스 성형한 후, 스폿용접으로 결합하여 제작되었던 범퍼 스테이와는 달리, 일체형 구조로 한 번에 압출 성형으로 제조함에 따라, 범퍼 스테이의 완충 성능을 용이하게 유지할 수 있고, 범퍼 스테이의 제조공정이 기존보다 매우 간편해지고, 그에따라 제조원가를 크게 절감할 수 있으며, 알루미늄 재질이므로 경량화(기존 스틸재의 40%)를 이룰 수 있는 자동차용 범퍼 스테이를 제공하고자 한 것이다.The present invention relates to a bumper stay for automobiles. Unlike the bumper stays, which were previously manufactured by press molding three pieces and then being joined by spot welding, the bumper stays are manufactured by extrusion molding at a time as an integral structure. Bumper performance can be easily maintained, the manufacturing process of the bumper stay is much simpler than before, and the manufacturing cost can be greatly reduced, and since it is made of aluminum, the automobile bumper can be made lightweight (40% of the existing steel material). It was intended to provide a stay.

Description

자동차용 범퍼 스테이{Bumper stay for vehicle}Bumper stay for vehicle}

본 발명은 자동차용 알루미늄 범퍼 스테이에 관한 것으로서, 더욱 상세하게는 기존의 스틸(steel)소재 범퍼 스테이가 변형이 일어나는 점을 고려하여 알루미늄 재질을 적용하여 변형을 줄이고 경량화를 이룰 수 있도록 한 구조의 자동차용 알루미늄 범퍼 스테이에 관한 것이다.The present invention relates to an aluminum bumper stay for automobiles, and more particularly, in consideration of the fact that the existing steel bumper stays are deformed by applying an aluminum material to reduce the deformation and achieve a lightweight vehicle. It relates to an aluminum bumper stay.

통상적으로 자동차용 범퍼는 차량의 충돌 발생시 1차적인 완충부재로서, 첨부한 도 6에 도시한 바와 같이, 범퍼 커버(bumper cover)(20)와, 범퍼 커버(20)내에 위치되는 에너지 압소버(energy absorber)(18)와, 에너지 압소버(18)의 바로 뒤쪽에 설치되는 범퍼빔(범퍼레일)(12)과, 이 범퍼 빔(bumper beam)(12)의 후면 양쪽에 소정의 거리를 유지하며 설치되는 범퍼스테이(bumper stay)(10b)로 구성되어 있다.Typically, a bumper for a vehicle is a primary shock absorbing member when a collision occurs in a vehicle, and as illustrated in FIG. 6, an bumper cover 20 and an energy absorber positioned in the bumper cover 20 may be used. A predetermined distance is maintained on both an energy absorber 18, a bumper beam (bumper rail) 12 provided immediately behind the energy absorber 18, and a rear surface of the bumper beam 12. And consists of a bumper stay (bump stay) (10b) is installed.

이러한 구성을 갖는 자동차용 범퍼에서, 상기 범퍼 빔은 알루미늄을 압출 성형한 후, 소정의 곡률반경으로 벤딩(bending)을 하여 제작하고 있고, 이와 같은 범퍼 빔을 차체의 사이드 멤버와 체결하기 위한 수단으로 스틸 소재의 범퍼 스테이를 사용하고 있다.In the bumper for automobiles having such a configuration, the bumper beam is manufactured by extruding aluminum and bending the sheet at a predetermined radius of curvature, and is a means for fastening the bumper beam with the side member of the vehicle body. A bumper stay made of steel is used.

첨부한 도 4에 도시한 바와 같이, 기존의 스틸(steel)재 범퍼 스테이(10b)는 차종에 따라 3개 또는 그 이상의 단품으로 나누어져 있는 바, 각각의 단품을 스틸 판재로 프레스 성형한 후, 스폿 용접으로 일체가 되게 제작된 것으로서, 첨부한 도 5a에 도시한 바와 같이, 상기 범퍼 빔과 차체의 사이드멤버에 볼팅에 의하여 체결하고 있다.As shown in FIG. 4, the conventional steel bumper stay 10b is divided into three or more parts according to the vehicle type. As integrally manufactured by spot welding, as shown in FIG. 5A, the bumper beam and the side member of the vehicle body are fastened by bolting.

한편, 상기 범퍼 빔은 소정의 충격에 충분히 견딜 수 있도록 제조되고 있는데, 기존에는 시속 2,5mph(mile per hour) 또는 5mph의 충돌에 견딜 수 있게 제조되고 있다.On the other hand, the bumper beam is manufactured to withstand a predetermined shock sufficiently, it is conventionally manufactured to withstand collisions of 2,5 mph (miles per hour) or 5 mph.

그러나, 알루미늄 범퍼 빔에 범퍼 스테이를 기존의 스틸재로 그대로 사용할 경우, 첨부한 도 5b에 도시한 바와 같이 상기 스틸재 범퍼 스테이의 변형이 심하게 일어나서, 범퍼 빔의 휘어지는 정도보다 인입되는 정도가 크기 때문에 범퍼 스테이의 보강이 요구되고 있다.However, when the bumper stay is used as the existing steel material for the aluminum bumper beam as shown in FIG. 5B, the deformation of the steel bumper stay occurs severely, and thus, the degree of pulling in the bumper beam is greater than that of the bumper beam. Reinforcement of bumper stays is required.

따라서, 본 발명은 상기와 같은 점을 감안하여 안출한 것으로서, 시속 5mph 및 2.5mph의 충돌에 견딜 수 있도록 한 알루미늄 범퍼 빔과, 차체의 사이드 멤버간을 연결하며 체결되는 범퍼 스테이를 알루미늄 재질로 압출 성형하여, 범퍼 빔에서 충격을 거의 흡수함에 따라, 알루미늄 범퍼 스테이의 변형이 거의 없어져 자체 성능을 만족시킬 뿐만 아니라 경량화를 이룰 수 있도록 한 구조의 자동차용 알루미늄 범퍼 스테이를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and the aluminum bumper beam that can withstand collisions of 5 mph and 2.5 mph and the bumper stay connected to the side members of the vehicle body are extruded into an aluminum material. It is an object of the present invention to provide an aluminum bumper stay for automobiles having a structure in which the deformation of the aluminum bumper stay is almost eliminated by molding and almost absorbing the impact in the bumper beam, thereby satisfying its own performance and achieving a light weight.

도 1은 본 발명에 따른 자동차용 범퍼 스테이를 나타내는 사시도,1 is a perspective view showing a bumper stay for automobiles according to the present invention;

도 2는 본 발명의 범퍼 스테이를 커팅하여 장착시킨 상태를 나타내는 사시도,2 is a perspective view showing a state in which the bumper stay of the present invention is cut and mounted;

도 3은 본 발명에 따른 범퍼 스테이가 범퍼 빔에 장착된 상태를 나타내는 평단면도,3 is a plan sectional view showing a state in which a bumper stay is mounted on a bumper beam according to the present invention;

도 4는 종래의 자동차용 범퍼 스테이를 나타내는 분리 사시도,4 is an exploded perspective view illustrating a conventional bumper stay for a vehicle;

도 5a,5b는 종래의 자동차용 범퍼 스테이의 장착상태와, 충돌후 변형상태를 나타내는 사시도,5A and 5B are perspective views illustrating a mounting state of a conventional bumper stay for a vehicle and a deformation state after a collision;

도 6은 통상적인 자동차용 범퍼를 나타내는 개략도,6 is a schematic view showing a conventional automobile bumper,

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10a,10b: 범퍼 스테이 12 : 범퍼 빔10a, 10b: bumper stay 12: bumper beam

18 : 에너지 압소버 20 : 범퍼 커버18: energy absorber 20: bumper cover

이하, 본 발명을 첨부도면을 참조로 설명한다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

상기한 목적을 달성하기 위한 본 발명은:The present invention for achieving the above object is:

자동차용 범퍼 스테이에 있어서,In the bumper stay for cars,

상기 범퍼 스테이(10a)를 알루미늄 재질로 압출 성형하되, 내부를 트러스 구조가 되도록 하고, 상기 범퍼 스테이(10a)의 안쪽단은 충돌시 취약부로서, 그 단면 두께를 다소 두껍게 성형한 것을 특징으로 한다.The bumper stay 10a is extruded from an aluminum material, but the inside of the bumper stay 10a is a truss structure, and the inner end of the bumper stay 10a is a fragile part when colliding, and its cross-sectional thickness is somewhat thickened.

바람직한 구현예로서, 상기 범퍼 스테이(10a)의 내부는 두 개의 공간으로 나누어지게 성형되고, 안쪽내부는 X자형 트러스 구조가 되도록 하고, 바깥쪽 내부는 대각의 트러스 구조가 되도록 한 것을 특징으로 한다.In a preferred embodiment, the interior of the bumper stay (10a) is formed to be divided into two spaces, the inner inside is to be an X-shaped truss structure, the outer inside is characterized in that the diagonal truss structure.

여기서 본 발명의 실시예를 첨부한 도면을 참조로 더욱 상세하게 설명한다.Herein with reference to the accompanying drawings, an embodiment of the present invention will be described in more detail.

첨부한 도 1은 본 발명에 따른 자동차용 범퍼 스테이를 나타내는 사시도이고, 도 2는 본 발명의 범퍼 스테이를 커팅하여 장착시킨 상태를 나타내는 사시도이며, 도 3은 본 발명의 범퍼 스테이의 장착상태를 나타내는 평단면도이다.1 is a perspective view showing a bumper stay for a vehicle according to the present invention, Figure 2 is a perspective view showing a state mounted by cutting the bumper stay of the present invention, Figure 3 shows a mounting state of the bumper stay of the present invention Plane section view.

상기 범퍼 스테이(10a)는 알루미늄 재질을 사용하여 압출 성형한 것으로서, 그 공정은 1)알루미늄 재료를 선정하는 공정, 2)선정된 알루미늄을 용융시키는 공정, 3)용융된 알루미늄을 소정의 형상으로 주조하는 공정, 4)소정의 형상, 즉 잉곳(ingot)화 된 알루미늄을 적재하는 공정, 5)잉곳화 된 알루미늄 덩어리를 소정의 크기로 커팅하는 공정, 6)커팅된 알루미늄재를 압출 성형을 위하여 가열하는 공정, 7)압출 성형기에 투입하여 소정의 형상으로 압출 성형하는 공정으로 제조된 것이다.The bumper stay 10a is extruded using an aluminum material, and the process includes 1) selecting an aluminum material, 2) melting the selected aluminum, and 3) casting molten aluminum into a predetermined shape. Process), 4) loading a predetermined shape, i.e., ingotized aluminum, 5) cutting the ingotized aluminum mass into a predetermined size, 6) heating the cut aluminum material for extrusion molding Step 7) and the extrusion molding into a predetermined shape.

이와 같이, 본 발명의 범퍼 스테이(10a)는 기존에 3개 또는 그 이상의 단품을 프레스 성형한 후, 스폿용접으로 결합하여 제작되었던 범퍼 스테이(10b)와는 달리, 일체형 구조로 한 번에 압출 성형으로 제조됨에 따라, 범퍼 스테이의 제조공정이 간편해지고, 제조원가를 크게 절감할 수 있으며, 알루미늄 재질이므로 경량화(기존 스틸재의 40%)를 이룰 수 있게 된다.Thus, the bumper stay 10a of the present invention, unlike the bumper stay 10b, which was manufactured by press-molding three or more units separately and then joined by spot welding, has an integral structure and is formed by extrusion molding at once. As it is manufactured, the manufacturing process of the bumper stay is simplified, manufacturing cost can be greatly reduced, and since it is made of aluminum, weight reduction (40% of existing steel material) can be achieved.

본 발명의 범퍼 스테이는 5mph용 알루미늄 범퍼 빔에 더욱 유리하게 적용될 수 있고, 2.5mph용 범퍼 빔에도 유효하게 적용 가능하다.The bumper stay of the present invention can be more advantageously applied to an aluminum bumper beam for 5 mph, and can be effectively applied to a bumper beam for 2.5 mph.

여기서, 본 발명의 알루미늄 범퍼 스테이의 구조를 보다 상세하게 설명한다.Here, the structure of the aluminum bumper stay of this invention is demonstrated in detail.

압출 성형에 의하여 연속적인 길이를 갖으며 제조된 상기 범퍼 스테이(10a)를 소정의 크기로 커팅하여, 상기 범퍼빔과 차체의 사이드멤버간에 볼팅으로 체결하게 되는데, 그 커팅된 단면 구조는 첨부한 도 3에 도시한 바와 같다.The bumper stay 10a having a continuous length by extrusion molding is cut to a predetermined size and fastened by bolting between the bumper beam and the side member of the vehicle body. As shown in 3.

상기 범퍼 스테이(10a)의 안쪽단(도 3에서, 범퍼 빔(12)에 장착되는 방향을 기준으로 한 안쪽방향의 끝단부)은 다른 부분보다 더 두껍게 성형되는 바, 그 이유는 범퍼 빔(12)에 장착된 상태에서 가장 취약한 부분이기 때문이다.The inner end of the bumper stay 10a (in Fig. 3, the inner end relative to the mounting direction of the bumper beam 12) is formed thicker than the other parts because the bumper beam 12 This is because it is the most vulnerable part when it is mounted on the).

즉, 충돌에 따른 범퍼빔의 인입량이 가장 많은 부분이기 때문에, 충격강도가 충분히 견딜 수 있도록 다른 부분보다 더 두껍게 성형한 것이다.That is, since the amount of the bumper beams due to the collision is the largest part, it is molded thicker than other parts so that the impact strength can be sufficiently endured.

특히, 상기 범퍼 스테이(10a)의 내부는 두 개의 공간으로 나누어지게 성형된 것으로서, 안쪽부분의 공간에는 X자 형태의 트러스 구조로, 그리고 바깥쪽의 공간에는 대각선의 트러스 구조가 되도록 성형된다.In particular, the interior of the bumper stay (10a) is formed to be divided into two spaces, the inner space is formed in the X-shaped truss structure, and the outer space is formed to be a diagonal truss structure.

물론, 상기 범퍼 스테이(10a)의 내부구조는 트러스 구조 이외에 격자형 또는 굴곡형등 여러가지 구조로 압출 성형 가능하다.Of course, the internal structure of the bumper stay 10a may be extruded into various structures such as a lattice type or a curved type in addition to the truss structure.

이상에서 본 바와 같이, 본 발명에 따른 자동차용 범퍼 스테이에 의하면, 기존에 3개 또는 그 이상의 단품을 프레스 성형한 후, 스폿용접으로 일체화시켜 제작되었던 스틸재 범퍼 스테이와는 달리, 알루미늄 재질을 사용하여 한 번의 압출 성형으로 제작함으로써, 작업공수를 감소시키는 동시에 비용을 절감할 수 있고, 또한 기존의 스틸재 범퍼 스테이에 비하여 40%가량의 경량화를 이룰 수 있는 장점이 있다.As seen above, according to the bumper stay for automobiles according to the present invention, unlike the steel bumper stay was produced by press molding three or more units separately and then integrated by spot welding, aluminum is used. By manufacturing in one extrusion, it is possible to reduce the labor and at the same time reduce the cost, and also can achieve a weight reduction of about 40% compared to the conventional steel bumper stay.

Claims (2)

삭제delete 범퍼 스테이(10a)를 알루미늄 재질로 한 번에 압출 성형하되, 내부를 트러스 구조가 되도록 한 자동차용 범퍼 스테이에 있어서, 상기 범퍼 스테이(10a)의 트러스구조는 안쪽 내부는 X자형 트러스 구조가 되도록 하고 바깥쪽 내부는 대각의 트러스 구조가 되도록 한 것을 특징으로 하는 자동차용 범퍼 스테이.Extruded bumper stay (10a) in aluminum at a time, but in the bumper stay for cars so that the inside of the truss structure, the truss structure of the bumper stay (10a) is to be inside the X-shaped truss structure Bumper stay for automobiles, characterized in that the inside of the outside is a diagonal truss structure.
KR10-2001-0052070A 2001-08-28 2001-08-28 Bumper stay for vehicle Expired - Fee Related KR100448142B1 (en)

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KR100826471B1 (en) * 2006-12-27 2008-04-30 주식회사 성우하이텍 Car Crash Box

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5772267A (en) * 1995-07-24 1998-06-30 Ymos Aktiengesellschaft Industrieprodukte Collision damper for motor vehicles
KR19980059444A (en) * 1996-12-31 1998-10-07 김영귀 Reinforcement structure of automobile bumper
JPH1159298A (en) * 1997-05-23 1999-03-02 Daimler Benz Ag Energy absorbing element
JP2000318552A (en) * 1999-05-13 2000-11-21 Tokai Rubber Ind Ltd bumper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5772267A (en) * 1995-07-24 1998-06-30 Ymos Aktiengesellschaft Industrieprodukte Collision damper for motor vehicles
KR19980059444A (en) * 1996-12-31 1998-10-07 김영귀 Reinforcement structure of automobile bumper
JPH1159298A (en) * 1997-05-23 1999-03-02 Daimler Benz Ag Energy absorbing element
JP2000318552A (en) * 1999-05-13 2000-11-21 Tokai Rubber Ind Ltd bumper

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