KR100501237B1 - Vehicle bumper for protecting pedestrian - Google Patents

Vehicle bumper for protecting pedestrian Download PDF

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Publication number
KR100501237B1
KR100501237B1 KR10-2002-0019675A KR20020019675A KR100501237B1 KR 100501237 B1 KR100501237 B1 KR 100501237B1 KR 20020019675 A KR20020019675 A KR 20020019675A KR 100501237 B1 KR100501237 B1 KR 100501237B1
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KR
South Korea
Prior art keywords
bumper
pedestrian
reinforcement
present
cover
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KR10-2002-0019675A
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Korean (ko)
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KR20030080846A (en
Inventor
이정호
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현대자동차주식회사
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Priority to KR10-2002-0019675A priority Critical patent/KR100501237B1/en
Publication of KR20030080846A publication Critical patent/KR20030080846A/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
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • 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
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B62D25/084—Radiator supports
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Vibration Dampers (AREA)

Abstract

본 발명은 보행자 보호를 위한 자동차용 범퍼에 관한 것으로, 더욱 상세하게는 범퍼 커버의 안쪽 하부에 보행자와의 충돌 시 서서히 변형되는 하니콤 구조의 보강재를 설치하여 보행자의 상해치를 최소화 할 수 있는 보행자 보호를 위한 자동차용 범퍼에 관한 것이다.The present invention relates to a bumper for automobiles for pedestrian protection, and more particularly, to install a reinforcement of a honeycomb structure that is gradually deformed when colliding with a pedestrian in the inner lower portion of the bumper cover to minimize pedestrian injury. The present invention relates to a bumper for an automobile.

본 발명은, 범퍼 커버(1)의 내측에 위치된 에너지 업소버(2)와, 상기 에너지 업서버(2)를 지지하는 백빔(3)을 구비하는 자동차의 범퍼에 있어서, 상기 커버(1)의 안쪽 하부에는 보강재(110)가 설치되는 데, 상기 보강재(110)는 하니콤(벌집) 구조로 이루어진다.The present invention provides a bumper for an automobile including an energy absorber (2) located inside the bumper cover (1) and a back beam (3) for supporting the energy upserver (2). Reinforcement 110 is installed in the inner lower portion, the reinforcement 110 is made of a honeycomb (honeycomb) structure.

Description

보행자 보호를 위한 자동차용 범퍼{Vehicle bumper for protecting pedestrian}Vehicle bumper for pedestrian protection {Vehicle bumper for protecting pedestrian}

본 발명은 보행자 보호를 위한 자동차용 범퍼에 관한 것으로, 더욱 상세하게는 범퍼 커버의 안쪽 하부에 보행자와의 충돌 시 서서히 변형되는 하니콤 구조의 보강재를 설치하여 보행자의 상해치를 최소화 할 수 있는 보행자 보호를 위한 자동차용 범퍼에 관한 것이다.The present invention relates to a bumper for automobiles for pedestrian protection, and more particularly, to install a reinforcement of a honeycomb structure that is gradually deformed when colliding with a pedestrian in the inner lower portion of the bumper cover to minimize pedestrian injury. The present invention relates to a bumper for an automobile.

일반적으로 자동차의 차체는 정면 및 측면 그리고 오프셋 충돌 시 차실 내에 탑승한 승객의 안전을 도모하기 위해 구조적인 강성을 점진적으로 강화되고 있는 추세인 바, 이와 같은 경향은 전적으로 차량에 탑승한 승객의 보호하기 위한 것이다.In general, the vehicle body is gradually increasing structural stiffness in order to ensure the safety of passengers in the cabin in the front and side and in the case of offset collision, this trend is to fully protect the passengers in the vehicle It is for.

차체가 보다 더 강화되는 경우에 있어서 주행 중인 차량과 보행자 사이의 충돌사고가 발생하면, 보행자가 입게 되는 상해치는 차체가 강화되는 만큼 더욱 더 증가한다.In the case where the vehicle body is further strengthened, and a collision accident between the vehicle and the pedestrian in progress occurs, the injury value to the pedestrian is further increased as the vehicle body is strengthened.

근래에 들어서는 자동차의 차체에 대한 구조적인 강성의 보완과는 별도로, 주행 중인 차량과 보행자의 충돌사고 시 보행자의 안전을 도모하기 위한 법규가 더욱 강화되고 있는 실정이다.In recent years, apart from the structural rigidity of the vehicle body, legislation is being tightened to promote the safety of pedestrians in the event of a collision between a vehicle and a pedestrian.

이러한 일 예의 하나로, 범퍼의 구조를 개량하여 충돌사고 시 보행자의 안전을 도모하고자 하는 기술이 활발하게 연구되고 있다.As an example of this, techniques for improving the structure of bumpers to promote the safety of pedestrians in crash accidents have been actively studied.

참고적으로, 범퍼는 충격흡수방식에 따라 고 충격성 타입의 5마일 범퍼와, 저 충격성 타입의 2.5마일 범퍼로 나눌 수 있다.For reference, the bumper may be classified into a high impact type 5 mile bumper and a low impact type 2.5 mile bumper according to the shock absorbing method.

5마일 범퍼는 큰 충격에너지를 흡수해야 하는 복잡한 구조로 이루어져 있는 바, 이는 다시 에너지 흡수 폼내장 방식과, 하니콤 방식, 쇽업서버 방식 등으로 나뉜다. 그리고 2.5마일 범퍼는 시속 40㎞ 정도의 보다 작은 충격에 대응하는 구조로 이루어져 있다.The 5-mile bumper has a complex structure that must absorb large impact energy, which is divided into energy-absorbing foam-embedded, honeycomb and shock-up servers. And the 2.5-mile bumper is built to handle a smaller impact, about 40 kilometers per hour.

도 1은 일반적인 자동차 외관을 보인 사시도이고, 도 2는 도 1의 A-A선 단면도로서, 종래 범퍼가 보행자 보호 법규치를 만족하고 있는 지에 대한 실차 실험 상태를 보인 도면이다.FIG. 1 is a perspective view illustrating a general automobile appearance, and FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 and illustrates a vehicle test state of whether a conventional bumper satisfies a pedestrian protection rule.

통상적으로 범퍼(10)의 구성은, 범퍼 커버(1)의 내측에 에너지 업소버(2)가 위치되며, 상기 에너지 업서버(2)는 백빔(3)에 의해 지지되어 있다.In general, in the configuration of the bumper 10, an energy absorber 2 is positioned inside the bumper cover 1, and the energy upserver 2 is supported by the back beam 3.

또한, 엔진룸 안에는 냉각수를 냉각시키는 라디에이터(4)가 설치되는 데, 이 라디에이터(4)는 라디에이터 로워 멤버(5)에 의해 지지되어 있다.In addition, a radiator 4 for cooling the coolant is provided in the engine room, and the radiator 4 is supported by the radiator lower member 5.

실제 자동차가 주행 중에 보행자와 부딪힐 경우 그 상해치를 측정하기 위하여 제품 출시 전에, 레그 폼(20)을 이용하여 실차 실험을 하고 있는 데, 실차 실험에서 보행자의 다리에 해당하는 레그 폼(20)의 굽힘 각도가 크면 클수록 보행자에게 큰 상해를 준다는 것을 알 수 있다.When a real car hits a pedestrian while driving, the actual vehicle experiment is conducted using the leg form 20 before the product is released in order to measure the injury value. In the actual vehicle experiment, the leg form 20 corresponding to the leg of the pedestrian is The larger the bend angle, the greater the injury to pedestrians.

종래의 범퍼의 경우 시속 40㎞ 로 자동차가 레그 폼에 부딪혔을 때, 레그 폼(무릎부위)의 굽힘 각도(파선으로 보임), 다시 말하면 가속도가 법규 규제치(150g) 보다 높게 나타나 보행자에게 큰 상해를 주고 있다.In the case of the conventional bumper, when the vehicle hits the leg form at 40 km / h, the bending angle of the leg form (knee portion) (indicated by the broken line), that is, the acceleration is higher than the legal limit value (150g), causing serious injury to pedestrians. have.

종래 범퍼의 경우 가속도가 법규치 보다 높게 나타나는 이유는, 범퍼 커버의 안쪽 하부에, 레그 폼 하부(TIBIA COG)를 서서히 지지하여 레그 폼의 굽힘 각도를 줄일 수 있는 별도의 부재가 없었기 때문이다.In the case of the conventional bumper, the acceleration is higher than the legal value because the lower part of the bumper cover does not have a separate member for gradually supporting the lower leg form (TIBIA COG) to reduce the bending angle of the leg form.

따라서, 충돌 시 레그 폼 하부를 지지하고 서서히 뒤로 밀리면서 변형되어 레그 폼의 굽힘 각도를 줄여 보행자의 상해치를 최소화 할 수 있도록 범퍼 커버 하부쪽에 보강재를 설치할 필요성이 대두되었다.Therefore, there is a need to install a reinforcement on the lower side of the bumper cover to support the lower leg form and to slowly deform and deform in order to reduce the bending angle of the leg form to minimize the pedestrian injury.

본 발명은 상기한 문제점 해결하기 위하여 발명한 것으로서, 그 목적은 범퍼 커버의 안쪽 하부에 보행자와의 충돌 시 서서히 변형되는 하니콤 구조의 보강재를 설치하여 보행자의 상해치를 줄일 수 있는 보행자 보호를 위한 자동차의 범퍼를 제공함에 있다.The present invention has been invented to solve the above problems, the object is to install a reinforcement of the honeycomb structure that is gradually deformed when colliding with the pedestrian in the inner bottom of the bumper cover for reducing the pedestrian injury vehicle In providing a bumper.

상기 목적을 달성하기 위한 본 발명의 특징적인 구성을 설명하면 다음과 같다.Referring to the characteristic configuration of the present invention for achieving the above object is as follows.

본 발명은, 범퍼 커버의 내측에 위치된 에너지 업소버와, 상기 에너지 업서버를 지지하는 백빔을 구비하는 자동차의 범퍼에 있어서, 상기 커버의 안쪽 하부에는 보강재가 설치된다.In the bumper of an automobile provided with an energy absorber located inside the bumper cover and a back beam supporting the energy upserver, a reinforcement is provided on the inner lower part of the cover.

상기 보강재는 마운팅 브래킷에 의해서 라디에이터 로워 멤버에 착탈 가능하게 설치되고, 상기 보강재는 하니콤(벌집) 구조로 이루어진다.The reinforcing material is detachably installed on the radiator lower member by a mounting bracket, and the reinforcing material has a honeycomb structure.

이하, 첨부도면을 참조하여, 이와 같이 구성된 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the present invention configured as described in detail as follows.

도 3은 본 발명의 자동차용 범퍼의 종단면도이고, 도 4는 본 발명의 보강재를 보인 부분 확대 사시도이다.Figure 3 is a longitudinal cross-sectional view of the bumper for automobiles of the present invention, Figure 4 is a partially enlarged perspective view showing a reinforcing material of the present invention.

도 3 및 도 4에 보인 바와 같이, 본 발명의 범퍼(10)는, 범퍼 커버(1) 내측에 에너지 업소버(2)가 위치되고, 상기 에너지 업서버(2)를 백빔(3)이 지지하고 있다. 또한 엔진룸 안에는 냉각수를 냉각시키는 라디에이터(4)가 설치되는 데, 이 라디에이터(4)는 라디에이터 로워 멤버(5)에 의해 지지되어 있다.3 and 4, in the bumper 10 of the present invention, an energy absorber 2 is positioned inside the bumper cover 1, and the energy upserver 2 is supported by the back beam 3. have. In addition, a radiator 4 for cooling the coolant is provided in the engine room, and the radiator 4 is supported by the radiator lower member 5.

상기 커버(1)의 안쪽 하부에 보강재(110)가 설치되는 데, 상기 보강재(110)는 마운팅 브래킷(111)에 의해서 라디에이터 로워 멤버(5)에 착탈 가능하게 볼트(112) 결합된다.The reinforcement 110 is installed at an inner lower portion of the cover 1, and the reinforcement 110 is detachably coupled to the radiator lower member 5 by the mounting bracket 111.

도 4를 참조하여, 상기 보강재(110)의 형상을 살펴보면, 원형 모양의 관통 구멍이 일정 간격으로 배열된 대략의 하니콤(벌집) 구조로 그 중간에서 양측으로 갈수록 폭이 좁아지는 판상으로 이루어진다.Referring to Figure 4, looking at the shape of the reinforcing member 110, a circular honeycomb (honeycomb) structure in which the through-holes are arranged at a predetermined interval is made of a plate shape narrowing toward both sides from the middle.

이와 같이 구성된 본 발명에서는, 도 3에 보인 바와 같이, 자동차가 소정 속도로 레그 폼(20)에 부딪치면, 보강재(110)가 하니콤 구조로 이루어져 있기 때문에, 보강재(110)는 레그 폼(20)의 하부(보행자의 무릎 하부)를 지지함과 동시에 서서히 속도를 줄여 변형된다.In the present invention configured as described above, as shown in FIG. 3, when the vehicle hits the leg form 20 at a predetermined speed, since the reinforcement 110 is made of a honeycomb structure, the reinforcement 110 is a leg form 20. At the same time as supporting the lower part () of the lap of the walker) the speed is gradually deformed.

또한 "T"방향 밀림이 없을 때(충격이 가해지는 방향) 압착된 보강재(110)는 반발력에 의해서 레그 폼(20) 하부(보행자 무릎 하부)를 탄성 복원시켜 주어 결과적으로 레그 폼(20)의 굽힘 각도를 줄여주는 것이다. 즉, 보행자의 무릎의 굽힘 각도를 줄여 상해치를 최소화할 수 있는 것이다. In addition, when there is no "T" direction (the direction in which the impact is applied), the crimped reinforcement 110 elastically restores the lower leg form 20 (lower pedestrian knee) by repulsive force, and consequently, It is to reduce the bend angle. That is, by reducing the bending angle of the knee of the pedestrian can minimize the injury.

이상에서와 같이, 실차 실험결과, 보강재(110)는 레그 폼(20)의 하부를 지지한 상태에서 서서히 변형되어 레그 폼(20)의 가속도를 낮추고 "T"방향 밀림이 없어지는 시점에서, 탄성 복원력으로 레그 폼(20)의 굽힘 각도를 다시 줄여 줌으로써 보행자의 상해치를 최소화시킬 수 있는 것이다.As described above, as a result of the actual vehicle test, the reinforcement 110 is gradually deformed while supporting the lower portion of the leg form 20 to lower the acceleration of the leg form 20 and the elasticity at the point where the "T" direction push disappears. By reducing the bending angle of the leg form 20 to the restoring force is to minimize the injury of the pedestrian.

이와 같은 본 발명에 의하면, 범퍼 커버의 안쪽 하부에 보행자와의 충돌 시 서서히 변형되는 하니콤 구조의 보강재를 설치하여 보행자의 상해치를 최소화할 수 있는 것이다.According to the present invention, it is possible to minimize the injury of the pedestrian by installing a reinforcing material of the honeycomb structure that is gradually deformed when the collision with the pedestrian in the inner lower portion of the bumper cover.

도 1은 일반적인 자동차 외관을 보인 사시도,1 is a perspective view showing a typical car exterior;

도 2는 도 1의 A-A선 단면도,2 is a cross-sectional view taken along the line A-A of FIG.

도 3은 본 발명의 자동차용 범퍼의 종단면도,3 is a longitudinal cross-sectional view of the bumper for automobile of the present invention;

도 4는 본 발명의 보강재를 보인 부분 확대 사시도.Figure 4 is a partially enlarged perspective view showing the reinforcing material of the present invention.

※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※

1 : 범퍼 커버(Bumper cover)1: Bumper cover

2 : 에너지 업소버(Energy absorber)2: energy absorber

3 : 백빔(Back beam)3: Back beam

4 : 라디에이터4: radiator

5 : 라디에이터 로워 멤버5: Radiator Lower Member

110 : 보강재110: reinforcement

111 : 마운팅 브래킷111: mounting bracket

112 : 볼트112: Bolt

Claims (3)

범퍼 커버(1)의 내측에 위치된 에너지 업소버(2)와, 상기 에너지 업소버(2)를 지지하는 백빔(3)을 구비하는 자동차의 범퍼에 있어서,In the bumper of an automobile having an energy absorber (2) located inside the bumper cover (1) and a back beam (3) for supporting the energy absorber (2), 상기 커버(1)의 안쪽 하부에는 보강재(110)가 마운팅 브래킷(111)에 의해서 라디에이터 로워 멤버(5)에 착탈 가능하게 설치되고, 상기 보강재(110)는 원형 모양의 관통 구멍이 일정 간격으로 배열된 구조로 이루어진 것을 특징으로 하는 보행자 보호를 위한 자동차용 범퍼.A reinforcement 110 is detachably installed at the radiator lower member 5 by a mounting bracket 111 at an inner lower portion of the cover 1, and the reinforcement 110 has circular through holes arranged at regular intervals. Bumper for pedestrian protection, characterized in that consisting of a structure. 삭제delete 삭제delete
KR10-2002-0019675A 2002-04-11 2002-04-11 Vehicle bumper for protecting pedestrian KR100501237B1 (en)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0019675A KR100501237B1 (en) 2002-04-11 2002-04-11 Vehicle bumper for protecting pedestrian

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KR20030080846A KR20030080846A (en) 2003-10-17
KR100501237B1 true KR100501237B1 (en) 2005-07-18

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101283206B1 (en) * 2006-09-14 2013-07-05 현대모비스 주식회사 Structure of front bumper for automobile
KR100792574B1 (en) * 2006-12-12 2008-01-09 현대자동차주식회사 Structure for improving bumper energy absorber foam
KR101084217B1 (en) 2010-03-29 2011-11-17 삼성에스디아이 주식회사 Battery pack, and method for controlling the battery pack

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970039233A (en) * 1995-12-30 1997-07-24 한승준 Car body
KR20010007531A (en) * 1999-06-28 2001-01-26 제임스 이. 미러 Front Body Structure of Vehicle
JP2002283937A (en) * 2001-03-27 2002-10-03 Fuji Heavy Ind Ltd Vehicular bumper structure
KR100410787B1 (en) * 2000-12-29 2003-12-18 현대자동차주식회사 Front bumper cover for an automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970039233A (en) * 1995-12-30 1997-07-24 한승준 Car body
KR20010007531A (en) * 1999-06-28 2001-01-26 제임스 이. 미러 Front Body Structure of Vehicle
KR100410787B1 (en) * 2000-12-29 2003-12-18 현대자동차주식회사 Front bumper cover for an automobile
JP2002283937A (en) * 2001-03-27 2002-10-03 Fuji Heavy Ind Ltd Vehicular bumper structure

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