KR101365057B1 - Bumper beam for a vehicle - Google Patents

Bumper beam for a vehicle Download PDF

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Publication number
KR101365057B1
KR101365057B1 KR1020070095089A KR20070095089A KR101365057B1 KR 101365057 B1 KR101365057 B1 KR 101365057B1 KR 1020070095089 A KR1020070095089 A KR 1020070095089A KR 20070095089 A KR20070095089 A KR 20070095089A KR 101365057 B1 KR101365057 B1 KR 101365057B1
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KR
South Korea
Prior art keywords
bumper beam
front part
lower support
automobiles
groove
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KR1020070095089A
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Korean (ko)
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KR20090029912A (en
Inventor
박성욱
심호창
소원섭
공태윤
김재용
차용길
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한라비스테온공조 주식회사
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Priority to KR1020070095089A priority Critical patent/KR101365057B1/en
Publication of KR20090029912A publication Critical patent/KR20090029912A/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
    • B60R19/023—Details
    • 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
    • B60R19/04—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
    • B60R2019/026—Buffers, i.e. bumpers of limited extent
    • 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
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • 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
    • B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material

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

Abstract

본 발명은 자동차용 범퍼빔에 관한 것으로, 본 발명에 의한 자동차용 범퍼빔은 수직방향으로 소정의 높이를 갖는 전면부와, 상기 전면부의 상단부와 하단부로부터 상기 전면부의 후방으로 연장된 상·하측지지부로 이루어져 자동차의 폭방향으로 길게 형성된 자동차용 범퍼빔에 있어서,The present invention relates to a bumper beam for automobiles, and the bumper beam for automobiles according to the present invention includes a front portion having a predetermined height in a vertical direction, and an upper and lower support portion extending rearward from the upper and lower ends of the front portion. In the bumper beam for cars formed long in the width direction of the vehicle,

상기 전면부 및 상·하측지지부는 플라스틱(plastic)재로 이루어지고, 상기 전면부의 수직방향 중앙부에는 홈부가 합입 형성되며, 상기 홈부에는 스틸(steel)재의 보강부재가 장착되는 것을 특징으로 한다.The front part and the upper and lower support parts are made of a plastic material, and a groove part is formed in the vertical center part of the front part, and the groove part is mounted with a reinforcing member made of steel.

이에 따라, 범퍼빔의 중량은 감소되는 반면 강성 및 완충효과는 보다 향상된다는 작용효과가 있다.Accordingly, the weight of the bumper beam is reduced while the stiffness and the buffering effect are improved.

범퍼빔, 범퍼, 보강리브, 하이브리드(hybrid) A bumper beam, a bumper, a reinforcing rib, a hybrid,

Description

자동차용 범퍼빔{BUMPER BEAM FOR A VEHICLE}Bumper Beam for Cars {BUMPER BEAM FOR A VEHICLE}

본 발명은 자동차용 범퍼빔에 관한 것으로, 더욱 상세하게는 플라스틱(plastic)재로 이루어진 범퍼빔의 전방에 스틸(steel)재의 보강부재가 장착되어 하중은 감소된 반면 완충력은 보다 향상된 자동차용 범퍼빔에 관한 것이다.The present invention relates to a bumper beam for an automobile, and more particularly, a reinforcing member of a steel material is mounted in front of a bumper beam made of a plastic material so that a load is reduced and a buffering force is improved. It is about.

일반적으로 자동차에는 충돌 시 발생되는 충격력을 흡수하여 차량 및 탑승자 등을 보호하기 위해 차체의 전방 및 후방에 범퍼가 장착된다.BACKGROUND OF THE INVENTION [0002] Generally, a bumper is mounted on the front and rear of a vehicle body to protect a vehicle and an occupant by absorbing an impact force generated in a collision.

상기 범퍼는 외면을 이루는 범퍼커버와, 상기 범퍼커버를 통해 충격이 전달되는 범퍼빔으로 구성되는데, 상기 범퍼빔은 자동차에 전달되는 충격을 완충하는 것으로 충격력이 클 경우에는 그 충격력을 효과적으로 완충하도록 변형되고, 충격력이 적을 경우에는 변형되지 않거나 변형량을 최소화하도록 하는 역할을 한다.The bumper is composed of a bumper cover forming an outer surface and a bumper beam through which the impact is transmitted through the bumper cover. The bumper beam cushions an impact transmitted to an automobile. When the impact force is large, And when the impact force is small, it does not deform or minimizes the deformation amount.

도 1은 종래의 범퍼빔(100)의 장착을 나타낸 것으로, 도시된 바와 같이 범퍼빔(100)은 차체의 사이드 멤버(110)에 고정된 캐리어(120)의 전면에 장착된다.1 shows a mounting of a conventional bumper beam 100 in which a bumper beam 100 is mounted on the front side of a carrier 120 fixed to a side member 110 of a vehicle body.

상기 범퍼빔(100)은 전술한 바와 같이 충격의 완충 역할을 하는 것으로, 수 직방향으로 소정의 높이를 갖는 전면부(110)와, 상기 전면부(110)의 상단부와 하단부로부터 연장되어 상기 전면부(110)의 후방으로 절곡된 상·하측지지부(112, 113)로 되어 자동차의 폭방향으로 길게 형성된다.The bumper beam 100 serves as a shock absorber as described above, and extends from the upper end and the lower end of the front part 110 having a predetermined height in a vertical direction, and the front part of the front part 110. It becomes the upper and lower support parts 112 and 113 bent backward of the part 110, and is formed long in the width direction of an automobile.

상기 전면부(110)와 상·하측지지부(112, 113)는 충격으로부터 차량 및 탑승자의 보호를 위해 소정의 강성을 갖도록 스틸(steel)재로 형성되는데, 상기 범퍼빔(100)이 스틸(steel)재로 이루어짐에 따라 소정의 강성이 확보된다는 장점이 있으나, 중량이 커져 자동차의 중량 및 연비에 악영향을 끼친다는 문제점이 있으며, 스틸(steel)재의 특성상 완충력이 떨어져 충격력이 그대로 탑승자에게 전달된다는 문제점이 있었다.The front portion 110 and the upper and lower support portions 112 and 113 are formed of steel so as to have a predetermined rigidity for protecting the vehicle and the passenger from impact. The bumper beam 100 is made of steel, However, the weight of the automobile is adversely affected by the weight of the automobile and the fuel consumption of the automobile, and the buffering force is reduced due to the characteristics of the steel material, so that the impact force is transmitted to the occupant as it is .

이와 같은 문제점을 극복하고자 플라스틱(plastic)재로 이루어진 범퍼빔이 개시되었다. 상기 범퍼빔이 플라스틱(plastic)재로 이루어짐에 따라 범퍼빔의 경량화 및 자동차의 경량화는 가능하나 충격을 완충할만한 강성이 확보되지 않아 완충 역할을 하는데 적합하지 못하다는 문제점이 발생하였다.In order to overcome such a problem, a bumper beam made of a plastic material has been disclosed. Since the bumper beam is made of a plastic material, it is possible to reduce the weight of the bumper beam and the weight of the automobile, but the stiffness sufficient to cushion impact is not ensured, which is not suitable for buffering.

이에 덧붙여 종래의 범퍼빔은 큰 충격이 발생됨은 물론 작은 충격이 발생되었을 경우에도 범퍼빔 전체를 교환해야 함에 따라 수리공수의 증가 그리고 수리비가 증가된다는 문제점이 발생하였다.In addition, the conventional bumper beams have a problem in that a large impact is generated as well as a large impact is generated, so that the entire bumper beam needs to be replaced.

본 발명은 상기의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 스틸(steel)재와 플라스틱(plastic)재가 혼용되어 충격의 완충을 위해 소정의 강성이 보장됨은 물론 중량이 감소된 자동차용 범퍼빔을 제공하는 것이다.The present invention has been made to solve the above problems, an object of the present invention is to use a steel material and a plastic material (mixture) is mixed with a certain stiffness for shock absorbing as well as the weight is reduced for automobiles It is to provide a bumper beam.

본 발명은 또 다른 목적은 전면에 홈부가 형성된 플라스틱(plastic)재의 범퍼빔에 스틸(steel)재의 보강부재가 장착됨으로써 스틸(steel)재와 플라스틱(plastic)재의 고정구조가 단순화 되어 제작이 용이한 자동차용 범퍼빔을 제공하는 것이다.Another object of the present invention is to simplify the fixing structure of steel and plastic by mounting a reinforcing member of steel on the bumper beam of plastic having a groove formed on the front surface. It is to provide a bumper beam for automobiles.

본 발명의 또 다른 목적은 플라스틱(plastic)재의 보강리브에 의해 충격의 분산 및 충격의 흡수가 뛰어난 자동차용 범퍼빔을 제공하는 것이다.Still another object of the present invention is to provide a bumper beam for automobiles which is excellent in dispersion of shock and absorption of shock by reinforcing ribs of plastic material.

수직방향으로 소정의 높이를 갖는 전면부와, 상기 전면부의 상단부와 하단부로부터 상기 전면부의 후방으로 연장된 상·하측지지부로 이루어져 자동차의 폭방향으로 길게 형성된 자동차용 범퍼빔에 있어서,In the bumper beam for automobiles formed in the width direction of the vehicle consisting of a front portion having a predetermined height in the vertical direction, and the upper and lower support portions extending to the rear of the front portion from the upper end and the lower end of the front portion,

상기 전면부 및 상·하측지지부는 플라스틱(plastic)재로 이루어지며, 상기 전면부의 수직방향 중앙부에는 홈부가 함입 형성되고, 상기 홈부에는 스틸(steel)재의 보강부재가 장착되는 것을 특징으로 한다.The front part and the upper and lower support parts are made of a plastic material, and a groove part is formed in the vertical central part of the front part, and the groove part is mounted with a reinforcing member made of steel.

여기서, 상기 홈부에는 상측 또는 하측면에 각각 하측 또는 상측으로 돌출된 고정돌기가 형성되고, 상기 보강부재에는 상기 고정돌기가 삽입되어 고정되도록 걸림홈이 함입 형성된 것을 특징으로 한다.Here, the groove portion is formed with a fixing protrusion protruding to the lower side or upper side, respectively, on the upper side or the lower side, the reinforcing member is characterized in that the engaging groove is formed so that the fixing protrusion is inserted and fixed.

한편, 상기 보강부재의 최전방은 상기 전면부의 최전방보다 전방으로 돌출된 것을 특징으로 한다.On the other hand, the forefront of the reinforcing member is characterized in that it protrudes forward than the foremost of the front portion.

또한, 상기 전면부와 상·하측지지부가 이루는 공간부에는 합성수지재의 보강리브가 형성된 것을 특징으로 한다.In addition, the space portion formed by the front portion and the upper and lower support portion is characterized in that the reinforcing rib of the synthetic resin material is formed.

또한, 상기 상·하측지지부의 단부에는 수직방향으로 상·하측 플랜지부가 각각 연장 형성된 것을 특징으로 한다.In addition, the upper and lower flanges are formed in the vertical direction at the ends of the upper and lower support portions, respectively.

상술한 바와 같이 본 발명에 의하면, 스틸(steel)재와 플라스틱(plastic)재를 혼용하여 범퍼빔을 구성함으로써 범퍼빔의 중량은 감소된 반면, 강성 및 완충효과가 보다 향상된다는 작용효과가 있다.As described above, according to the present invention, the weight of the bumper beam is reduced by constituting the bumper beam by mixing the steel material and the plastic material, while the stiffness and the buffering effect are improved.

또한, 플라스틱(plastic)재로 이루어진 범퍼빔의 전면에 스틸(steel)재의 보강부재가 장착됨으로서 스틸(steel)재와 플라스틱(plastic)재 사이에 고정구조가 단순화됨과 동시에 견고한 결합이 이루어진다는 작용효과가 있다.In addition, the reinforcing member of the steel material is mounted on the front surface of the bumper beam made of plastic material, thereby simplifying the fixing structure between the steel material and the plastic material, and at the same time, providing a firm coupling. have.

또한, 보강부재의 최전방이 전면부의 최전방 보다 전방으로 돌출됨으로써 작은 충격이 발생될 경우 상기 보강부재만 손상되고 그로 인해 상기 보강부재만 선택적으로 교체할 수 있어 수리 공수 및 수리비가 절감된다는 특유의 작용효과가 있다.In addition, when the front of the reinforcing member protrudes forward than the front of the front portion, when a small impact occurs, only the reinforcing member is damaged, and thus, only the reinforcing member can be replaced, thereby reducing the labor and repair costs. There is.

또한, 범퍼빔의 내측면에 보강리브가 형성됨으로써 상기 범퍼빔의 안정도가 향상되고, 층격흡수율이 보다 향상된다는 작용효과가 있다.In addition, since the reinforcing ribs are formed on the inner surface of the bumper beam, the stability of the bumper beam is improved and the layer absorption rate is improved.

이하, 상기한 바와 같은 구성을 가지는 본 발명에 의한 자동차용 범퍼빔에 대해서 첨부된 도면을 참고하여 상세하게 설명한다.Hereinafter, a bumper beam for a vehicle according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 자동차용 범퍼빔의 전면을 나타낸 사시도이고, 도 4는 본 발명의 자동차용 범퍼빔의 후면을 나타낸 사시도이며, 도 5a는 본 발명의 자동차용 범퍼빔을 나타낸 단면도이고, 도 5b는 본 발명의 자동차용 범퍼빔을 나타낸 분해사시도이며, 도 6a는 본 발명의 자동차용 범퍼빔의 다른 형태를 나타낸 단면도이고, 도 6b는 본 발명의 자동차용 범퍼빔의 다른 형태를 나타낸 분해사시도이며, 도 7은 본 발명의 자동차용 범퍼빔의 다른 실시예를 나타낸 단면도이다.Figure 3 is a perspective view showing the front of the bumper beam for automobiles of the present invention, Figure 4 is a perspective view showing a rear of the bumper beam for automobiles of the present invention, Figure 5a is a cross-sectional view showing a bumper beam for automobiles of the present invention, Figure 5B is an exploded perspective view showing a bumper beam for automobiles of the present invention, FIG. 6A is a cross-sectional view showing another form of the bumper beam for automobiles of the present invention, and FIG. 6B is an exploded perspective view showing another form of a bumper beam for automobiles of the present invention. 7 is a cross-sectional view showing another embodiment of the bumper beam for automobiles of the present invention.

도 3 내지 도 6은 본 발명의 범퍼빔을 나타낸 도면으로서, 도시된 바와 같이 본 발명의 범퍼빔은 수직방향으로 소정의 높이를 갖는 전면부(10)와, 상기 전면부(10)의 상단부로부터 상기 전면부(10)의 후방으로 연장된 상측지지부(12), 및 상기 전면부(10)의 하단부로부터 상기 전면부(10)의 후방으로 연장된 하측지지부(13)로 이루어져 자동차의 폭방향으로 길게 형성된다.3 to 6 are views showing the bumper beam of the present invention, as shown in the bumper beam of the present invention, which has a predetermined height in a vertical direction, and from an upper end of the front part 10. The upper support portion 12 extending to the rear of the front portion 10, and the lower support portion 13 extending rearward of the front portion 10 from the lower end of the front portion 10 in the width direction of the vehicle It is formed long.

상기 전면부(10) 및 상·하측지지부(12, 13)는 경량이고 성형이 용이한 플라스틱(plastic)재로 이루어지며, 상기 플라스틱(plastic)재로 이루어진 전면부(10) 의 수직방향 중앙부에는 홈부(14)가 함입 형성된다.The front portion 10 and the upper and lower support portions 12 and 13 are made of a plastic material that is lightweight and easy to mold, and a groove portion is formed in the vertical center portion of the front portion 10 made of the plastic material. 14) is formed to be recessed.

상기 전면부(10)에 함입 형성된 상기 홈부(14)에는 스틸(steel)재의 보강부재(30)가 장착되는데, 도 5a와 도 5b에서 참조되는 바와 같이 상기 보강부재(30)에는 걸림홈(31)이 길이방향으로 함입 형성되고, 상기 홈부에(14)는 상기 걸림홈(31)에 대응되도록 상측 또는 하측면에 각각 하측 또는 상측으로 돌출된 고정돌기(15)가 형성된다.The groove portion 14 formed in the front portion 10 is mounted with a reinforcing member 30 made of steel, and as shown in FIGS. 5A and 5B, the locking groove 31 is disposed in the reinforcing member 30. ) Is formed in the longitudinal direction, and the groove portion 14 is formed with a fixing protrusion 15 protruding downward or upward on the upper or lower side, respectively, to correspond to the engaging groove 31.

이처럼 상기 걸림홈(31)과 고정돌기(15)가 보강부재(30)를 비롯한 상기 홈부(14)의 길이방향으로 길게 형성됨으로써 상기 보강부재(30)는 길이방향으로 상기 홈부(14)에 슬라이딩 되어 장착된다.As such, the engaging groove 31 and the fixing protrusion 15 are formed to extend in the longitudinal direction of the groove portion 14 including the reinforcing member 30 so that the reinforcing member 30 slides in the groove portion 14 in the longitudinal direction. Is fitted.

여기서 도 6a와 도 6b에 참조되는 바와 같이 상기 보강부재(20)는 상·하측 단부가 후방으로 갈수록 길이가 점점 작아져 테이퍼지도록 형성되며, 상기 고정돌기(15)는 이에 대응되도록 경사부가 형성됨에 따라 상기 보강부재(20)는 상기 홈부(14)의 전방으로부터 삽입되어 스냅-인(snap-in) 결합될 수 있다.6A and 6B, the reinforcing member 20 is formed to taper as the length of the upper and lower ends thereof gradually decreases toward the rear, and the fixing protrusion 15 is formed to have an inclined portion corresponding thereto. Accordingly, the reinforcing member 20 may be inserted from the front of the groove 14 to be snap-in coupled.

상기 걸림홈(31)과 고정돌기(15)는 위의 예로서 한정치 아니하며, 도 7에서 참조되는 바와 같이 당업자 입장에서 상기 보강부재(30)의 장착이 용이하며 고정구조가 견고히 유지될 수 있는 형태로 얼마든지 변경실시가 가능할 것이다.The locking groove 31 and the fixing protrusion 15 are not limited to the above examples, and as shown in FIG. 7, it is easy to mount the reinforcing member 30 from the viewpoint of those skilled in the art, and the fixing structure may be firmly maintained. Any number of changes can be made.

상기 전면부(10)와 상·하측지지부(12, 13)가 이루는 공간부에는 상기 상·하측지지부(12, 13)를 잇는 보강리브(20)가 형성되는데, 상기 보강리브(20)는 합성수지재로 이루어져, 범퍼빔의 부족한 강성, 충격의 흡수 및 분산이 용이하도록 대 각선형상으로 이루어진다. 이때 상기 보강리브는 상기 전면부(10)와 상·하측지지부(12, 13)와 같이 플라스틱(plastic)재로 이루어짐이 바람직하다.In the space formed by the front portion 10 and the upper and lower support portions 12 and 13, a reinforcement rib 20 is formed to connect the upper and lower support portions 12 and 13, and the reinforcement rib 20 is a synthetic resin. It is made of ash and has a diagonal shape to facilitate the insufficient rigidity of the bumper beam, the absorption and dispersion of the impact. In this case, the reinforcing rib is preferably made of a plastic material, such as the front portion 10 and the upper and lower support portions 12 and 13.

전술한 바와 같이, 상기 홈부(14)에 스틸(steel)재의 보강부재(30)가 장착됨으로써, 자동차의 전방으로부터 전달되는 충격은 상기 보강부재(30)에 의해 1차 완충되고, 상기 보강리브(20)를 포함한 플라스틱(plastic)재에 의해 2차 완충된다.As described above, by mounting the reinforcing member 30 made of steel in the groove portion 14, the impact transmitted from the front of the vehicle is primarily buffered by the reinforcing member 30, the reinforcing rib ( Secondary buffer by a plastic material, including 20).

여기서 상기 보강부재(20)의 최전방이 상기 전면부(10)의 최전방보다 전방으로 돌출 형성됨으로써, 작은 충격이 발생될 경우 상기 충격으로 인해 상기 보강부재(20)만 손상됨에 따라 손상된 상기 보강부재(20)만 선택적으로 교체할 수 있어 수리가 용이함은 물론 비용이 절감된다는 장점이 있다.Here, the frontmost portion of the reinforcing member 20 is formed to protrude forward than the frontmost portion of the front portion 10, so that when a small impact occurs, only the reinforcing member 20 is damaged due to the impact. Only 20) can be replaced selectively so that repair is easy and cost is reduced.

한편, 상기 상측지지부(12)의 단부와 하측지지부(13)의 단부에는 각각 상측 플랜지부(12a)와 하측 플랜지부(13a)가 연장 형성되는데, 상기 상측 플랜지부(12a)와 하측 플랜지부(13a)는 수직방향으로 즉, 상기 전면부(10)와 평행하게 형성된다.On the other hand, the upper flange portion 12a and the lower flange portion 13a are formed at the ends of the upper support portion 12 and the lower support portion 13, respectively, and the upper flange portion 12a and the lower flange portion ( 13a) is formed in the vertical direction, that is, in parallel with the front portion 10.

이때, 상기 상측 플랜지부(12a)는 상측으로 연장 형성됨이 바람직하며, 하측 플랜지부(13a)는 하측으로 연장 형성됨이 바람직하다.At this time, the upper flange portion 12a is preferably formed extending upward, the lower flange portion 13a is preferably formed extending downward.

이처럼 상기 상·하측지지부(12, 13)의 단부에 수직방향으로 상·하측 플랜지부(12a, 13a)가 연장됨으로서 범퍼빔의 강성이 보다 향상된다.As such, the upper and lower flange portions 12a and 13a extend in the direction perpendicular to the ends of the upper and lower support portions 12 and 13, thereby improving the rigidity of the bumper beam.

앞서 말한 바와 같이 플라스틱(plastic)재와 스틸(steel)재가 혼용되어 범퍼빔이 제작됨에 따라 충격력이 클 경우에는 상기 범퍼빔이 충격에 의해 변형되어 효 과적인 완충이 이루어지고, 충격력이 적을 경우에는 상기 범퍼빔이 변형되지 않거나 변형량이 최소화 되어 자동차 및 탑승자가 보호된다는 장점이 있다.As mentioned above, when a bumper beam is manufactured by mixing a plastic material with a steel material, when the impact force is large, the bumper beam is deformed by the impact, thereby effectively buffering and when the impact force is low. The bumper beam is not deformed or the amount of deformation is minimized to protect the vehicle and the occupant.

본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 만족하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not satisfy all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be variations and variations.

도 1은 종래의 자동차용 범퍼빔의 장착을 나타낸 분해사시도.1 is an exploded perspective view showing the mounting of a conventional automotive bumper beam.

도 2는 종래의 자동차용 범퍼빔의 단면을 나타내 단면도.2 is a cross-sectional view of a conventional automotive bumper beam.

도 3은 본 발명의 자동차용 범퍼빔의 전면을 나타낸 사시도.3 is a perspective view showing a front surface of a bumper beam for a vehicle according to the present invention.

도 4는 본 발명의 자동차용 범퍼빔의 후면을 나타낸 사시도.4 is a perspective view showing the rear surface of the automotive bumper beam according to the present invention.

도 5a는 본 발명의 자동차용 범퍼빔을 나타낸 단면도.Figure 5a is a cross-sectional view showing a bumper beam for automobiles of the present invention.

도 5b는 본 발명의 자동차용 범퍼빔을 나타낸 분해사시도.Figure 5b is an exploded perspective view showing a bumper beam for automobiles of the present invention.

도 6a는 본 발명의 자동차용 범퍼빔의 다른 형태를 나타낸 단면도.Figure 6a is a sectional view showing another form of the bumper beam for automobiles of the present invention.

도 6b는 본 발명의 자동차용 범퍼빔의 다른 형태를 나타낸 분해사시도.Figure 6b is an exploded perspective view showing another form of the bumper beam for automobiles of the present invention.

도 7은 본 발명의 자동차용 범퍼빔의 다른 실시예를 나타낸 단면도.7 is a cross-sectional view showing another embodiment of the bumper beam for automobiles of the present invention.

*도면의 주요부분에 대한 부호의 설명*Description of the Related Art [0002]

10: 전면부 12: 상측지지부10: front part 12: upper support part

12a: 상측 플랜지부 13: 하측지지부12a: upper flange portion 13: lower side support portion

13a: 하측 플랜지부 14: 홈부13a: lower flange 14: groove

15: 고정돌기 20: 보강리브15: fixing protrusion 20: reinforcing rib

30: 보강부재 31: 걸림홈30: reinforcing member 31: locking groove

Claims (5)

삭제delete 수직방향으로 소정의 높이를 갖는 전면부(10)와, 상기 전면부(10)의 상단부와 하단부로부터 상기 전면부(10)의 후방으로 연장된 상·하측지지부(12, 13)로 이루어져 자동차의 폭방향으로 길게 형성된 자동차용 범퍼빔에 있어서,The front part 10 having a predetermined height in the vertical direction, and the upper and lower support parts 12, 13 extending from the upper end and the lower end of the front part 10 to the rear of the front part 10, In the bumper beam for automobiles formed long in the width direction, 상기 전면부(10) 및 상·하측지지부(12, 13)는 플라스틱(plastic)재로 이루어지고, 상기 전면부(10)의 수직방향 중앙부에는 홈부(14)가 함입 형성되며, 상기 홈부(14)에는 스틸(steel)재의 보강부재(30)가 장착되되,The front part 10 and the upper and lower support parts 12 and 13 are made of plastic, and the groove part 14 is formed in the vertical center part of the front part 10 and the groove part 14 is formed. In the reinforcement member 30 of steel material is mounted, 상기 홈부(14)에는 상측 또는 하측면에 각각 하측 또는 상측으로 돌출된 고정돌기(15)가 형성되고, 상기 보강부재(30)에는 상기 고정돌기(15)가 삽입되어 고정되도록 걸림홈(31)이 함입 형성된 것을 특징으로 하는 자동차용 범퍼빔.The groove 14 has a fixing protrusion 15 protruding downwardly or upwardly on an upper side or a lower side, respectively, and the locking groove 31 is inserted into the reinforcing member 30 to fix the fixing protrusion 15. A bumper beam for automobiles, characterized in that the recess is formed. 수직방향으로 소정의 높이를 갖는 전면부(10)와, 상기 전면부(10)의 상단부와 하단부로부터 상기 전면부(10)의 후방으로 연장된 상·하측지지부(12, 13)로 이루어져 자동차의 폭방향으로 길게 형성된 자동차용 범퍼빔에 있어서,The front part 10 having a predetermined height in the vertical direction, and the upper and lower support parts 12, 13 extending from the upper end and the lower end of the front part 10 to the rear of the front part 10, In the bumper beam for automobiles formed long in the width direction, 상기 전면부(10) 및 상·하측지지부(12, 13)는 플라스틱(plastic)재로 이루어지고, 상기 전면부(10)의 수직방향 중앙부에는 홈부(14)가 함입 형성되며, 상기 홈부(14)에는 스틸(steel)재의 보강부재(30)가 장착되되,The front part 10 and the upper and lower support parts 12 and 13 are made of plastic, and the groove part 14 is formed in the vertical center part of the front part 10 and the groove part 14 is formed. In the reinforcement member 30 of steel material is mounted, 상기 보강부재(30)의 최전방은 상기 전면부(10)의 최전방보다 전방으로 돌출된 것을 특징으로 하는 자동차용 범퍼빔.Bump beam for a vehicle, characterized in that the front of the reinforcing member 30 protrudes forward than the front of the front portion (10). 제 2항 또는 제 3항에 있어서,The method according to claim 2 or 3, 상기 전면부(10)와 상·하측지지부(12, 13)가 이루는 공간부에는 합성수지재의 보강리브(20)가 형성된 것을 특징으로 하는 자동차용 범퍼빔.Bumper beams for automobiles, characterized in that the reinforcing ribs 20 of the synthetic resin material is formed in the space formed by the front portion 10 and the upper and lower support portions (12, 13). 수직방향으로 소정의 높이를 갖는 전면부(10)와, 상기 전면부(10)의 상단부와 하단부로부터 상기 전면부(10)의 후방으로 연장된 상·하측지지부(12, 13)로 이루어져 자동차의 폭방향으로 길게 형성된 자동차용 범퍼빔에 있어서,The front part 10 having a predetermined height in the vertical direction, and the upper and lower support parts 12, 13 extending from the upper end and the lower end of the front part 10 to the rear of the front part 10, In the bumper beam for automobiles formed long in the width direction, 상기 전면부(10) 및 상·하측지지부(12, 13)는 플라스틱(plastic)재로 이루어지고, 상기 전면부(10)의 수직방향 중앙부에는 홈부(14)가 함입 형성되며, 상기 홈부(14)에는 스틸(steel)재의 보강부재(30)가 장착되되,The front part 10 and the upper and lower support parts 12 and 13 are made of plastic, and the groove part 14 is formed in the vertical center part of the front part 10 and the groove part 14 is formed. In the reinforcement member 30 of steel material is mounted, 상기 상·하측지지부(12, 13)의 단부에는 수직방향으로 상·하측 플랜지부(12a, 13a)가 각각 연장 형성된 것을 특징으로 하는 자동차용 범퍼빔.Bumper beams for automobiles, characterized in that the upper and lower flange portions (12a, 13a) are extended at the ends of the upper and lower support portions (12, 13) in the vertical direction, respectively.
KR1020070095089A 2007-09-19 2007-09-19 Bumper beam for a vehicle KR101365057B1 (en)

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Cited By (1)

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US10696830B2 (en) 2015-06-29 2020-06-30 Lotte Chemical Corporation Polyolefin resin, preparation method therefor, and vehicle rear bumper beam using same

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KR102194218B1 (en) 2017-11-29 2020-12-22 롯데케미칼 주식회사 Bumfer beam of vehicle
CN109866721A (en) * 2019-03-22 2019-06-11 安徽彤上智能科技有限公司 A kind of automobile tail reduces the collision prevention girders of small collision maintenance cost

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JPH07304462A (en) * 1994-05-11 1995-11-21 Honda Motor Co Ltd Front body structure for automobile
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US20060181089A1 (en) * 2004-04-23 2006-08-17 Compagnie Plastic Omnium Beam with an over-moulded insert

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JPH07304462A (en) * 1994-05-11 1995-11-21 Honda Motor Co Ltd Front body structure for automobile
KR970039258A (en) * 1995-12-28 1997-07-24 김태구 Rigid Bumper Impact Beam
US20060181089A1 (en) * 2004-04-23 2006-08-17 Compagnie Plastic Omnium Beam with an over-moulded insert

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10696830B2 (en) 2015-06-29 2020-06-30 Lotte Chemical Corporation Polyolefin resin, preparation method therefor, and vehicle rear bumper beam using same

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