KR20070055014A - Front impact absorption means of vehicle - Google Patents

Front impact absorption means of vehicle Download PDF

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Publication number
KR20070055014A
KR20070055014A KR1020050113238A KR20050113238A KR20070055014A KR 20070055014 A KR20070055014 A KR 20070055014A KR 1020050113238 A KR1020050113238 A KR 1020050113238A KR 20050113238 A KR20050113238 A KR 20050113238A KR 20070055014 A KR20070055014 A KR 20070055014A
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South Korea
Prior art keywords
shock absorbing
vehicle
horizontal plate
absorbing member
flange
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KR1020050113238A
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Korean (ko)
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안용덕
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현대자동차주식회사
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Priority to KR1020050113238A priority Critical patent/KR20070055014A/en
Publication of KR20070055014A publication Critical patent/KR20070055014A/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
    • B60R19/18—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
    • B60R19/24—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

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

Abstract

본 발명은 차량의 전방 충격흡수구조에 관한 것이며, 상세하게는 프론트 사이드 멤버와 범퍼 빔 사이에 폐단면의 충격흡수부재를 설치한 차량의 전방 충격흡수구조에 관한 것으로서, 저렴하게 제조하고 설치가 간편하며, 충격력의 흡수를 양호하게 한 것이다.The present invention relates to a front shock absorbing structure of a vehicle, and more particularly, to a front shock absorbing structure of a vehicle in which a shock absorbing member of a closed section is installed between a front side member and a bumper beam. It is to improve the absorption of impact force.

본 발명은 프론트 사이드 멤버(10)의 선단에 플랜지(11)를 형성하여 상기 플랜지(11)에, 지지부(12)에 부설한 플랜지(13)를 보강부재(14)를 사이에 두고 용접 결합하고, 상기 지지부(12)와 범퍼 빔(15) 사이에 폐단면(C)의 충격흡수부재(30)를 볼트(31a)(31b)로 결합한 것에 있어서, 상기 충격흡수부재(30)는 강판으로 폐단면의 다면체로 형성함과 동시에 후방에서 전방으로 갈수록 그 단면적을 작게 형성하고, 전방에 플랜지(32)를 형성하여 보강부재(33)를 용접 결합하여서, 후방은 상기 지지부(12)의 외부에 삽입하고 전방은 보강부재(33)를 범퍼 빔(15)에 면접촉시킨 후 볼트(31a)(31b)로 체결 결합한 것이다.According to the present invention, a flange 11 is formed at the front end of the front side member 10 to weld the flange 13 attached to the flange 11 to the flange 11 with the reinforcing member 14 interposed therebetween. In coupling the shock absorbing member 30 of the closed end surface C with bolts 31a and 31b between the support 12 and the bumper beam 15, the shock absorbing member 30 is closed by a steel plate. At the same time as forming a polyhedron of the face, the cross-sectional area is made smaller from the rear to the front, and the flange 32 is formed at the front to weld the reinforcing member 33 to the front, so that the rear side is inserted outside the support 12. And the front is the surface of the reinforcing member 33 is in contact with the bumper beam 15 is fastened and coupled with bolts (31a) (31b).

프론트 사이드 멤버, 범퍼 빔, 충격흡수부재, 경사부 Front side member, bumper beam, shock absorbing member, slope

Description

차량의 전방 충격흡수구조 {FRONT IMPACT ABSORPTION MEANS OF VEHICLE}Front shock absorber structure of vehicle {FRONT IMPACT ABSORPTION MEANS OF VEHICLE}

도 1은 본 발명의 실시예의 분해사시도1 is an exploded perspective view of an embodiment of the present invention

도 2는 본 발명의 실시예의 종단면도2 is a longitudinal sectional view of an embodiment of the present invention;

도 3은 본 발명의 실시예의 충격흡수부재의 사시도Figure 3 is a perspective view of the shock absorbing member of the embodiment of the present invention

도 4는 도 3의 A-A 선 단면도4 is a cross-sectional view taken along the line A-A of FIG.

도 5는 도 3의 B-B 선 단면도5 is a cross-sectional view taken along the line B-B of FIG.

< 도면의 주요부분에 대한 부호설명 >                <Explanation of Signs of Major Parts of Drawings>

10 : 프론트 사이드 멤버 15 : 범퍼 빔 30 : 충격흡수부재Reference Signs List 10 front side member 15 bumper beam 30 shock absorbing member

133 : 경사부133: inclined portion

본 발명은 차량의 전방 충격흡수구조에 관한 것이며, 상세하게는 프론트 사이드 멤버와 범퍼 빔 사이에 폐단면의 충격흡수부재를 설치한 차량의 전방 충격흡수구조에 관한 것이다.The present invention relates to a front shock absorbing structure of a vehicle, and more particularly, to a front shock absorbing structure of a vehicle provided with a shock absorbing member of a closed section between a front side member and a bumper beam.

주지하는 바와 같이, 자동차는 차체를 구성하는 프론트 사이드 멤버와 범퍼의 범퍼 빔 사이에 충격흡수부재를 배치하여 범퍼에 충격력이 작용하면 상기 충격 흡수부재가 축방향으로 압축 변형하면서 충격력을 흡수하도록 되어 있으며, 상기 충격흡수부재는 저렴하고, 또한 충격력이 작용할 때 양호하게 압축 변형되어 프론트 사이드 멤버의 변형을 최소화하여 수리비를 절감할 수 있는 것이다.As is well known, the automobile is arranged between the front side member constituting the vehicle body and the bumper beam of the bumper so that when the impact force acts on the bumper, the shock absorbing member compresses and deforms in the axial direction to absorb the impact force. In addition, the shock absorbing member is inexpensive, and when the impact force is applied, the compression deformation is satisfactorily to minimize the deformation of the front side member to reduce the repair cost.

상기한 요구를 충족하기 위한 차량의 충격흡수부재가 일본국 특허출원공개번호 특개 2005-1462 호 공보에 개시되어 있다.A shock absorbing member of a vehicle for satisfying the above requirement is disclosed in Japanese Patent Application Laid-Open No. 2005-1462.

상기 차량의 충격흡수부재 즉 크래쉬 박스(clash box)는 알루미늄 합금단조에 의하여 통상으로 형성한 충격흡수부와, 상기 충격흡수부의 축방향 일단부에 축방향과 교차하는 방향으로 돌출시켜 범퍼골격부재에 체결수단으로 고정하는 범퍼측 취부부와, 상기 충격흡수부의 축방향 타단부에 축방향으로 연장 설치하여 차량골격부재에 체결수단으로 고정하는 차량측 취부부를 일체로 형성하여서, 범퍼골격부재 측으로부터 충격력이 작용하면 충격흡수부재가 축방향으로 압축 변형하면서 충격력을 흡수하도록 한 것이다.The shock absorbing member of the vehicle, that is, the crash box (clash box) is a shock absorbing portion formed by forging aluminum alloy, and one end of the shock absorbing portion in the axial direction protrudes in the direction crossing the axial direction to the bumper skeleton member. The bumper side mounting portion fixed by the fastening means, and the vehicle side mounting portion fixedly installed on the vehicle skeleton member by the fastening means by being axially extended to the other axial end of the shock absorbing portion from the bumper skeleton member side. When the impact force acts, the shock absorbing member compresses and deforms in the axial direction to absorb the impact force.

그러나 상기한 차량의 충격흡수부재는 알루미늄 소재를 절단한 후 단조를 실시하고 나사구멍을 형성하여야 함으로써 제조공정이 복잡하여 비용이 과다하게 소요되고, 또한 충격흡수부는 그 축방향 전후의 단면계수가 동일함으로 충돌시에 축방향 전길이에 걸쳐 균일하게 압축된 후 흡수되지 못한 충격력이 충격흡수부와 차량골격부재(프론트 사이드 멤버)의 체결부위에 전달됨으로써 충돌사고시에 프론트 사이드 멤버까지 수리하여야하기 때문에 수리비가 과도하게 소요되는 문제점이 있는 것이다.However, the above-described shock absorbing member of the vehicle has to be forged after cutting the aluminum material and to form a screw hole, so that the manufacturing process is complicated, and the cost is excessively increased. As the impact force that is not absorbed after being uniformly compressed over the entire axial length at the time of a collision is transmitted to the joint of the shock absorber and the vehicle skeleton member (front side member), the front side member must be repaired in the event of a collision. There is a problem that takes excessively.

본 발명은 상기한 문제점을 시정하여, 저렴하게 제조하고 설치가 간편하며, 충격력의 흡수를 양호하게 한 차량의 전방 충격흡수구조를 제공하는 것을 목적으로 한다.It is an object of the present invention to provide a front shock absorbing structure for a vehicle that corrects the above problems, is inexpensive to manufacture, is simple to install, and has a good absorption of impact force.

상기한 목적을 달성하기 위하여, 본 발명은 프론트 사이드 멤버의 선단에 지지부를 결합하여 상기 지지부와 범퍼 빔 사이에 폐단면의 충격흡수부재를 볼트로 결합한 것에 있어서, 상기 충격흡수부재는 강판으로 폐단면의 다면체로 형성함과 동시에 후방에서 전방으로 갈수록 그 단면적을 작게 형성한 것을 특징으로 한다.In order to achieve the above object, the present invention is to couple the support to the front end of the front side member to the bolt and the shock absorbing member of the closed cross-section between the support and the bumper beam, the shock absorbing member is a closed section with a steel sheet It is characterized in that the polyhedron formed at the same time smaller cross-sectional area from the rear toward the front.

본 발명은 도 1 내지 도 5에 도시한 바와 같이, 프론트 사이드 멤버(10)의 선단에 플랜지(11)를 형성하여 상기 플랜지(11)에, 지지부(12)에 부설한 플랜지(13)를 보강부재(14)를 사이에 두고 용접 결합하고, 상기 지지부(12)와 범퍼 빔(15)사이에 폐단면(C)의 충격흡수부재(30)를 볼트(31a)(31b)로 결합한 것에 있어서, 상기 충격흡수부재(30)는 강판으로 폐단면의 다면체로 형성함과 동시에 후방에서 전방으로 갈수록 그 단면적을 작게 형성하고, 전방에 플랜지(32)를 형성하여 보강부재(33)를 용접 결합하여서, 후방은 상기 지지부(12)의 외부에 삽입하고 전방은 보강부재(33)를 범퍼 빔(15)에 면접촉시킨 후 볼트(31a)(31b)로 체결 결합한 것이다.1 to 5, the flange 11 is formed at the tip of the front side member 10 to reinforce the flange 13 attached to the support part 12 to the flange 11. In the welding coupling between the members 14 and the support 12 and the bumper beam 15, the shock absorbing member 30 of the closed end surface C is joined by bolts 31a and 31b. The shock absorbing member 30 is formed of a polyhedron of the closed end face with a steel plate, and at the same time, the cross-sectional area thereof is made smaller from the rear to the front side, and the flange 32 is formed at the front to weld-bond the reinforcing member 33, The rear part is inserted into the outside of the support part 12, and the front part is the surface contact of the reinforcing member 33 to the bumper beam 15 and then fastened and coupled with bolts 31a and 31b.

그리고 상기 충격흡수부재(30)는 제 1 및 제 2 부재(130)(230)로 분할 형성하여 축방향으로 용접 결합하는바, 상기 제 1 부재(130)는 제 1 수직부(131)의 하부에 상기 폐단면(C)의 폭과 동일한 제 1 수평판 A(132)를 형성하고 상부는 전방에 서 후방으로 갈수록 그 폭이 작은 경사부(133)를 형성함과 동시에 제 1 수평판 B(134)를 형성하며, 한편 상기 제 2 부재(230)는 제 2 수직부(231)의 하부에 폭이 좁은 제 2 수평판 A(232)를 형성하고 상부는 상기 폐단면(C)보다 약간 작은 폭의 제 2 수평판 B(234)를 형성하여서, 제 1 수평판 A(132)와 제 2 수평판 A(232)를 겹치기 용접 결합하고, 상기 제 1 수평판 B(134)와 제 2 수평판 B(234)를 겹치기 용접 결합한 것이며, 상기 제 1 및 제 2 부재(130)(230)의 전방에는 플랜지(32)를 각각 형성하여서 된 것이다.The shock absorbing member 30 is divided into first and second members 130 and 230 to be welded in the axial direction, and the first member 130 is disposed below the first vertical portion 131. The first horizontal plate A (132) equal to the width of the closed end surface (C), and the upper portion of the first horizontal plate B ( 134, while the second member 230 forms a narrow second horizontal plate A 232 at a lower portion of the second vertical portion 231, and an upper portion thereof is slightly smaller than the closed end surface C. A second horizontal plate B 234 having a width is formed to overlap and weld the first horizontal plate A 132 and the second horizontal plate A 232 to each other, and the first horizontal plate B 134 and the second number are overlapped. The plate B 234 is overlap welded together, and the flanges 32 are formed in front of the first and second members 130 and 230, respectively.

이상과 같은 본 발명은 강판을 프레스함으로써 저렴하게 제조할 수 있고, 전방충돌시 그 충격력이 범퍼 빔(15)을 경유하여 충격흡수부재(30)에 전달될 때 그 충격흡수부재(30)의 전방은 단면적이 작고 후방은 단면적이 크기 때문에 단면적이 작은 전방부가 쉽게 축방향으로 압축 변형되면서 충격력을 양호하게 흡수하는 것이다.The present invention as described above can be produced inexpensively by pressing the steel sheet, and when the front impact is transmitted to the shock absorbing member 30 via the bumper beam 15, the front of the shock absorbing member 30 The silver cross section is small and the rear section has a large cross section, so that the front section having a small cross section is easily compressed and deformed in the axial direction, thereby absorbing the impact force well.

상기와 같이 충격흡수부재(30)의 전방에서 충격력을 양호하게 흡수하면 충격흡수부재(30)의 후방으로 전달되는 충격력은 작게 됨으로써 프론트 사이드 멤버(10)의 변형을 방지할 수 있는 것이다.As described above, if the shock force is satisfactorily absorbed from the front of the shock absorbing member 30, the impact force transmitted to the rear of the shock absorbing member 30 is reduced, thereby preventing deformation of the front side member 10.

그리고 충격력이 크게 되면 충격흡수부재(30)의 후방을 볼트(31b)로 결합하는 지지부(12)가 변형되지만 이 경우에도 지지부(12)만을 수리하면 되므로 수리비를 절감할 수 있는 것이다.And when the impact force is large, the support portion 12 for coupling the rear of the shock absorbing member 30 to the bolt 31b is deformed, but in this case, only the support portion 12 needs to be repaired, thereby reducing the repair cost.

또한 충격흡수부재(30)는 제 1 및 제 2 부재(130)(230)로 분할 형성하여 그 축방향으로 겹치기 용접함으로써 강성이 증대되는 것이다.In addition, the impact absorbing member 30 is formed by dividing the first and second members 130, 230, and overlap welding in the axial direction is to increase the rigidity.

이상과 같이 본 발명은 프론트 사이드 멤버와 범퍼 빔 사이에 결합되는 충격흡수부재를 강판으로 폐단면의 다면체로 형성함으로써 저렴하게 제조함과 동시에 후방에서 전방측으로 갈수록 그 단면적을 작게 형성하여 즉 전방의 단면적을 후방보다 작게 형성하여서 단면적이 작은 전방에서 충격력을 양호하게 흡수하고, 또한 충격흡수부재의 전방에서 충격력을 양호하게 흡수함으로써 나머지 충격력이 프론트 사이드 멤버에 전달되는 것이 억제됨으로 수리비를 대폭 절감할 수 있는 것이다.As described above, the present invention is inexpensively manufactured by forming the shock absorbing member coupled between the front side member and the bumper beam as a polyhedron of the closed cross section with a steel sheet, and at the same time, the cross-sectional area of the front is made smaller from the rear to the front side. It is possible to reduce the repair cost by forming a smaller than the rear to absorb the impact force well in the front with a small cross-sectional area, and also to absorb the impact force in the front of the shock absorbing member to restrain the transmission of the remaining impact force to the front side member. will be.

Claims (3)

프론트 사이드 멤버의 선단에 지지부를 결합하여 상기 지지부와 범퍼 빔 사이에 폐단면의 충격흡수부재를 볼트로 결합한 것에 있어서, 상기 충격흡수부재는 강판으로 폐단면의 다면체로 형성함과 동시에 후방에서 전방으로 갈수록 그 단면적을 작게 형성한 것을 특징으로 한 차량의 전방 충격흡수구조.In the coupling of the support portion to the front end of the front side member bolted to the shock absorbing member of the closed cross-section between the support and the bumper beam, the shock absorbing member is formed of a polyhedron of the closed cross section with a steel plate and at the same time from the rear to the front A front shock absorbing structure for a vehicle, characterized by a smaller cross-sectional area. 제 1 항에 있어서, 충격흡수부재는 제 1 및 제 2 부재로 분할 형성하여 축방향으로 겹치기 용접 결합한 차량의 전방 충격흡수구조.The vehicle front shock absorbing structure according to claim 1, wherein the shock absorbing member is divided into first and second members and overlapped and welded in the axial direction. 제 2 항에 있어서, 제 1 부재는 제 1 수직부의 하부에 폐단면의 폭과 동일한 제 1 수평판 A를 형성하고 상부는 전방에서 후방으로 갈수록 그 폭이 작은 경사부를 형성함과 동시에 제 1 수평판 B를 형성하며, 한편 제 2 부재는 제 2 수직부의 하부에 폭이 좁은 제 2 수평판 A를 형성하고 상부는 상기 폐단면보다 약간 작은 폭의 제 2 수평판 B를 형성하여서, 제 1 수평판 A와 제 2 수평판 A를 겹치기 용접 결합하고, 제 1 수평판 B와 제 2 수평판 B를 겹치기 용접 결합한 차량의 전방 충격흡수구조.3. The first member according to claim 2, wherein the first member forms a first horizontal plate A at the lower portion of the first vertical portion that is equal to the width of the closed cross section, and the upper portion forms an inclined portion whose width is smaller from front to rear. The second member forms a narrow second horizontal plate A at the bottom of the second vertical portion, and the upper part forms a second horizontal plate B having a width slightly smaller than the closed cross section, thereby forming the first horizontal plate. A front shock absorbing structure of a vehicle in which A and a second horizontal plate A are overlap-welded, and a first horizontal plate B and a second horizontal plate B are overlap-welded.
KR1020050113238A 2005-11-25 2005-11-25 Front impact absorption means of vehicle KR20070055014A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101046170B1 (en) * 2009-07-27 2011-07-04 주식회사 성우하이텍 Car Crash Box
KR101106330B1 (en) * 2010-09-09 2012-01-18 호남석유화학 주식회사 Crash box in automobile bumper beam assembly
KR101510039B1 (en) * 2014-02-06 2015-04-07 현대자동차주식회사 Crash box for vehicle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101046170B1 (en) * 2009-07-27 2011-07-04 주식회사 성우하이텍 Car Crash Box
KR101106330B1 (en) * 2010-09-09 2012-01-18 호남석유화학 주식회사 Crash box in automobile bumper beam assembly
WO2012033370A3 (en) * 2010-09-09 2012-06-28 호남석유화학 주식회사 Crash box for a vehicle
US20130154287A1 (en) * 2010-09-09 2013-06-20 Lotte Chemical Corporation Crash box for a vehicle
US8820805B2 (en) 2010-09-09 2014-09-02 Lotte Chemical Corporation Crash box for a vehicle
KR101510039B1 (en) * 2014-02-06 2015-04-07 현대자동차주식회사 Crash box for vehicle
US9174594B2 (en) 2014-02-06 2015-11-03 Hyundai Motor Company Crash box for vehicle

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