KR20050045076A - Bumper back beam for vehicle - Google Patents
Bumper back beam for vehicle Download PDFInfo
- Publication number
- KR20050045076A KR20050045076A KR1020030079019A KR20030079019A KR20050045076A KR 20050045076 A KR20050045076 A KR 20050045076A KR 1020030079019 A KR1020030079019 A KR 1020030079019A KR 20030079019 A KR20030079019 A KR 20030079019A KR 20050045076 A KR20050045076 A KR 20050045076A
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- South Korea
- Prior art keywords
- back beam
- crash box
- stay
- bumper
- vehicle
- Prior art date
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Classifications
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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
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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
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
-
- 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
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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
- B62D21/152—Front or rear frames
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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
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Dampers (AREA)
- Body Structure For Vehicles (AREA)
Abstract
본 발명은 차량용 범퍼 백빔에 관한 것으로, 차체의 스테이에 장착되어 외부충격을 흡수하는 차량의 범퍼백빔에 있어서, 길이방향을 따라 충격력흡수부(5)가 형성된 백빔스테이부(1)의 양측끝부분에 크래쉬박스(3)가 후면을 향해 돌출되고, 백빔스테이부(1)의 중앙부에서 크래쉬박스(3)로 향하면서 구부러져 호형상의 단면을 이루며, 백빔스테이부(1)와 크래쉬박스(3) 연결선상에 그루우브(7)가 형성되어,크래쉬박스를 별도로 설치하는데 따른 설치공간을 줄여 차체 경량화 및 조립 편의성을 추구하고, 외부충격에 대응하여 자체변형되도록 유도하므로써 후방 밀림량을 최소화시키도록 되어 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper back beam for a vehicle, wherein both side ends of a back beam stay part 1 in which a bumper back beam of a vehicle mounted on a stay of a vehicle body to absorb external shocks is formed along the longitudinal direction. The crash box (3) protrudes toward the rear side, bent toward the crash box (3) from the center of the back beam stay portion 1 to form an arc-shaped cross section, the back beam stay portion (1) and the crash box (3) Groove (7) is formed on the connection line, to reduce the installation space for installing the crash box separately, to reduce the body weight and ease of assembly, and to induce self-deformation in response to external shock to minimize the amount of rear push. have.
Description
본 발명은 차량 충돌시 충격을 흡수하기 위한 범퍼에 관한 것으로, 더욱 상세하게는 크래쉬박스를 일체화시켜 설치공간을 줄이고 자체변형을 통해 충돌에너지를 최대한 흡수하도록 하므로써 차체 및 탑승자의 안전을 최대한 도모한 차량용 범퍼 백빔에 관한 것이다.The present invention relates to a bumper for absorbing a shock during a vehicle crash, and more particularly, by integrating a crash box to reduce installation space and absorbing collision energy as much as possible through self-deformation, thereby ensuring maximum safety of the vehicle body and occupant. Relates to a bumper backbeam.
범퍼는 차체 전방 및 후방에 설치되어 차량 또는 외부 물체와 충돌시 충격을 흡수하여 차체가 받는 충격량을 감소시키므로써 차체 및 탑승자를 보호할 뿐 아니라 후드 및 엔진룸에 장착된 엔진과 각종 구동기기등을 보호하는 역할을 하는데, 각종 법규에 의한 충격요건에 만족되어야 함은 물론 소정의 강성과 신축성을 갖도록 설계되어야 한다.Bumpers are installed at the front and rear of the body to absorb shocks when colliding with the vehicle or external objects to reduce the amount of impact received by the body, thereby protecting the body and occupants, as well as the engine and various driving devices installed in the hood and engine room. It plays a role of protection, and it must be designed to have a certain rigidity and elasticity as well as satisfying the shock requirements according to various laws.
한편 범퍼는 외피를 이루는 페이셔와, 페이셔의 형상을 유지시키면서 충돌시 충격력을 완화시키는 충돌흡수부재 및, 탄성변형 또는 소성변형을 통해 충돌에너지를 흡수하는 백빔으로 구성되는 바, 이 백빔에는 다시 크래쉬박스가 설치되므로써 고속충돌에 견딜 수 있는 높은 에너지 흡수량을 얻게 된다. On the other hand, the bumper is composed of a facer constituting the outer shell, a collision absorbing member for alleviating the impact force during the collision while maintaining the shape of the facer, and a back beam absorbing the collision energy through elastic deformation or plastic deformation. By installing a crash box, you get a high energy absorption that can withstand high-speed collisions.
도 4는 종래 실시예에 따른 백빔에 크래쉬박스가 설치된 것을 도시한 것으로, 범퍼백빔(50)의 양단선단에 각각 스틸재 크래쉬박스(52)를 장착시키고 이 크래쉬박스(52)가 범퍼스테이(54)에 연결부착되도록 하여 충격이 가해지면 크래쉬박스(52)가 접혀지면서 충돌에너지를 흡수하도록 구성된 것이고, 도 5는 범퍼스테이(60)에 충격흡수브라켓트(62)와 4각박스형태의 크래쉬박스(64)를 연결설치하여 범퍼백빔(66)에 가해진 충격에너지가 크래쉬박스(62)와 지지브라켓트(64)를 통해 단계적으로 흡수되도록 고안된 것이다.Figure 4 shows that the crash box is installed in the back beam according to the prior embodiment, the steel box of the crash box 52 is mounted on both ends of the bumper back beam 50, respectively, the crash box 52 is a bumper stay 54 When the shock is applied to the connection to be attached to the crash box 52 is folded and configured to absorb the collision energy, Figure 5 is a bumper stay (60) in the shock absorbing bracket 62 and quadrangular box-type crash box ( 64 is designed so that the impact energy applied to the bumper back beam 66 is gradually absorbed through the crash box 62 and the support bracket 64.
그러나, 상기 좌굴형상의 크래쉬박스는 충격흡수율을 높이기 위해 넓은 폭의 패키지공간이 필요하게 되므로 패키지 증대요인이 되고, 그로 인해 차체중량이 증가된다는 단점이 있으며, 상기 4각박스형태로 된 구조 역시 크래쉬박스를 별도로 설치하여야 한다는 불편 외에도 변형공간을 제공하기 위해 패키지의 전체 크기가 증대된다는 근본적인 문제가 있다. However, the buckled crash box requires a wide package space in order to increase the shock absorption rate, which is a factor of increasing the package, thereby increasing the weight of the vehicle, and the four-box structure also has a crash. In addition to the inconvenience of having to install the box separately, there is a fundamental problem that the overall size of the package is increased to provide a deformation space.
이에 본 발명은 상기와 같은 문제점을 해소하기 위한 것으로, 크래쉬박스를 일체화시켜 설치공간을 줄이고 자체변형을 유도하여 범퍼스테이를 통해 차체전반으로 전달되는 충돌에너지를 최소화 하므로써 차체 및 탑승자의 안전을 최대한 도모한 차량용 범퍼 백빔을 제공함에 그 목적이 있다.Accordingly, the present invention is to solve the above problems, by integrating the crash box to reduce the installation space and induce self-deformation by minimizing the collision energy transmitted to the vehicle body through the bumper stay to maximize the safety of the body and occupants The object is to provide a bumper back beam for a vehicle.
상기와 같은 목적을 달성하기 위한 본 발명 차량용 범퍼 백빔은, 차체의 스테이에 장착되어 외부충격을 흡수하는 차량의 범퍼백빔에 있어서, 길이방향을 따라 충격력흡수부가 형성된 백빔스테이부의 양측끝부분에 크래쉬박스가 후면을 향해 돌출되고, 백빔스테이부의 중앙부에서 크래쉬박스로 향하면서 구부러져 호형상의 단면을 이루며, 백빔스테이부와 크래쉬박스 연결선상에 그루우브가 형성된 것을 특징으로 한다.The bumper back beam of the present invention for achieving the above object, the bumper back beam of the vehicle mounted on the stay of the vehicle body to absorb the external impact, the crash box at both ends of the back beam stay portion formed with a shock absorbing portion along the longitudinal direction Is protruded toward the rear side, bent toward the crash box from the center of the back beam stay portion to form an arc-shaped cross-section, the groove is formed on the back beam stay portion and the crash box connecting line.
또한 본 발명에 따른 범퍼 백빔은, 상기 충격력흡수부가 백빔스테이 상에서 스테이 전면을 향해 개방되고, 상기 크래쉬박스가 백빔스테이부에 일체로 형성된 것을 특징으로 한다. In addition, the bumper back beam according to the present invention is characterized in that the impact force absorbing part is opened toward the front of the stay on the back beam stay, and the crash box is formed integrally with the back beam stay part.
이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1 내지 도 3은 각각 본 발명이 적용된 범퍼 백빔의 사시도와 정면도 및 평면도로써, 본 발명은 도시된 것과 같이, 백빔스테이부(1)의 양측끝부분에 각각 크래쉬박스(3)가 후면을 향해 일체로 돌출형성되고, 전면부에 백빔스테이부(1)의 길이방향을 따라 충격력흡수부(5)가 ⊂형태로 개방되며, 백빔스테이부(1)의 중앙부에서 크래쉬박스(3)로 향하면서 구부러져 전체적으로 호(弧)형상의 단면을 이루는 한편, 백빔스테이부(1)와 크래쉬박스(3) 연결선상에 각각 그루우브(7)가 형성된 구조로 되어 있다.1 to 3 are respectively a perspective view, a front view, and a plan view of a bumper back beam to which the present invention is applied. As shown in the present invention, the crash boxes 3 respectively have rear sides at both ends of the back beam stay unit 1. Toward the crash box 3 from the central portion of the back beam stay portion 1, the impact force absorbing portion 5 is opened in the shape of a bevel along the longitudinal direction of the back beam stay portion 1 in the front portion. While being bent to form an arc-shaped cross section as a whole, the grooves 7 are formed on the connecting line of the back beam stay part 1 and the crash box 3, respectively.
따라서, 차량 충돌에 따라 차량에 가해지는 충격력은 일차적으로 범퍼페이스(도시되지 않음)로 전달되는데, 이 범퍼페이스의 완충능력이 매우 미약하므로 전달된 대부분의 충돌에너지가 범퍼백빔(9)으로 전달되게 되고, 이에 따라 백빔스테이부(1)에서 탄력적으로 대응하면서 1차적으로 충격을 흡수하게 되며, 크래쉬박스(3)에서 2차적으로 충격을 흡수하게 된다.Therefore, the impact force applied to the vehicle according to the vehicle collision is primarily transmitted to the bumper face (not shown). Since the buffering capacity of the bumper face is very weak, most of the transmitted collision energy is transmitted to the bumper back beam 9. As a result, the back beam stay unit 1 responsively elastically absorbs the shock, and the crash box 3 secondarily absorbs the impact.
즉, 약 15㎞/h 이상에 해당하는 충돌에너지가 가해지면 먼저 충격력흡수부(5)를 통해 충격에너지가 빠르게 크래쉬박스(3)로 전달되고, 전달된 충격력에 의해 크래쉬박스(3)가 탄성변형되면서 나머지 에너지를 흡수하게 되는데, 이는 충격력흡수부(5)가 백빔(9) 전방쪽으로 개방되어 있기 때문이고, 전면을 향해 호형을 이루고 있기 때문이다.That is, when collision energy corresponding to about 15 km / h or more is applied, the impact energy is quickly transferred to the crash box 3 through the impact force absorbing part 5, and the crash box 3 is elastic by the transmitted impact force. The remaining energy is absorbed as it is deformed, because the impact force absorbing part 5 is open toward the front of the back beam 9 and is arc-shaped toward the front side.
또한, 이들 각 충격흡수부 특히, 백빔스테이부(1)의 변형으로도 감당할 수 없는 과도한 충격에너지가 전가되면 이에 대응하여 그루우브(7)가 파단되므로써 에너지 흡수율을 더욱 향상시키게 되는데, 상기 백빔스테이부(1)에 형성된 충격력흡수부(5)는 범퍼백빔(9) 전체의 비틀림을 방지함과 동시에 횡방향의 강성을 보강하게 되므로써 외부로부터의 충격에 대한 강성을 최대한 확보할 수 있게 된다.In addition, when excessive impact energy that cannot be handled even by deformation of each of the impact absorbing units, in particular, the back beam stay unit 1 is transferred, the groove 7 is broken in response to this, thereby further improving the energy absorption rate. The impact force absorbing part 5 formed in the part 1 prevents the torsion of the entire bumper back beam 9 and at the same time reinforces the stiffness in the lateral direction, thereby maximizing the rigidity against the impact from the outside.
한편 본 발명의 실시예에 따른 범퍼백빔은 스틸재 대신 플라스틱재로 이루어져 종래 사용예와 대비할 때 약 2kg이상으로 중량이 절감되고, 충격에너지에 따른 후방밀림량이 종래기술 대비 20mm정도 감소되며, 전체패키기 크기로 볼 때 종래의 좌굴형상의 크래쉬박스는 범퍼 선단에서 사이드벰버까지의 폭이 120mm이상 필요하지만, 본 발명에 따른 범퍼백빔은 60mm정도로 가능하므로 패키지를 축소시키는 효과가 있다.Meanwhile, the bumper back beam according to the embodiment of the present invention is made of plastic instead of steel, and the weight is reduced by about 2 kg or more as compared with the conventional use, and the rear push amount according to the impact energy is reduced by about 20 mm compared to the prior art. In view of the size of the conventional buckling-shaped crash box, the width from the bumper tip to the side chamber is required 120mm or more, but the bumper back beam according to the present invention can be reduced to about 60mm has the effect of reducing the package.
이상 설명한 바와 같이 본 발명에 따르면, 크래쉬박스를 일체로 형성시켜 별도로 설치하는데 따른 설치공간을 줄여 차체 경량화 및 조립 편의성을 추구하고, 외부충격에 대응하여 자체변형되도록 유도하므로써 후방 밀림량을 최소화하여 범퍼스테이를 통해 차체 전반으로 전달되는 충돌에너지를 최소화하여 차체 및 탑승자의 안전을 최대한 도모하는 효과가 있다.As described above, according to the present invention, the crash box is formed by integrating the crash box integrally, thereby reducing the installation space required for the separate installation, and pursuing light weight and assembly convenience, and minimizing the rear push amount by inducing self deformation in response to external shock. By minimizing collision energy transmitted to the entire body through the stay, it is effective to maximize the safety of the body and the occupant.
도 1은 본 발명에 따른 백빔의 사시도,1 is a perspective view of a back beam according to the present invention;
도 2는 본 발명에 따른 백빔의 정면도,2 is a front view of a back beam according to the present invention;
도 3은 본 발명에 따른 백빔의 평면도,3 is a plan view of a back beam according to the present invention;
도 4는 종래 사용예에 따른 것으로, 백빔에 크래쉬박스가 장착된 상태의 개략단면도,4 is a schematic cross-sectional view of a state in which a crash box is mounted on a back beam according to a conventional use example;
도 5는 종래 사용예에 따른 것으로, 백빔과 크래쉬박스의 다른 실시예를 도시한 개략단면도, 5 is a schematic cross-sectional view showing another embodiment of a back beam and a crash box according to a conventional use example.
< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>
1 - 백빔스테이부 3 - 크래쉬박스1-Back Beam Stay 3-Crash Box
5 - 충격력흡수부 7 - 그루우브5-Shock Absorber 7-Groove
9 - 범퍼백빔9-Bumper Back Beam
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030079019A KR20050045076A (en) | 2003-11-10 | 2003-11-10 | Bumper back beam for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030079019A KR20050045076A (en) | 2003-11-10 | 2003-11-10 | Bumper back beam for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20050045076A true KR20050045076A (en) | 2005-05-17 |
Family
ID=37244819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030079019A KR20050045076A (en) | 2003-11-10 | 2003-11-10 | Bumper back beam for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20050045076A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110049915A1 (en) * | 2008-04-08 | 2011-03-03 | Showa Denko K.K. | Bumper reinforcement for vehicles |
| KR101496466B1 (en) * | 2008-09-10 | 2015-02-26 | 현대자동차주식회사 | Backbeam for Automobile Bumper |
| US9302638B2 (en) * | 2010-10-29 | 2016-04-05 | Sabic Global Technologies B.V. | Unitary energy absorbing assembly and method of making the same |
-
2003
- 2003-11-10 KR KR1020030079019A patent/KR20050045076A/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110049915A1 (en) * | 2008-04-08 | 2011-03-03 | Showa Denko K.K. | Bumper reinforcement for vehicles |
| CN102015377A (en) * | 2008-04-08 | 2011-04-13 | 昭和电工株式会社 | Bumper reinforcement for vehicles |
| US8287012B2 (en) * | 2008-04-08 | 2012-10-16 | Showa Denko K.K. | Bumper reinforcement for vehicles |
| KR101496466B1 (en) * | 2008-09-10 | 2015-02-26 | 현대자동차주식회사 | Backbeam for Automobile Bumper |
| US9302638B2 (en) * | 2010-10-29 | 2016-04-05 | Sabic Global Technologies B.V. | Unitary energy absorbing assembly and method of making the same |
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| E601 | Decision to refuse application |