KR20030008915A - A bumper of automobile - Google Patents

A bumper of automobile Download PDF

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Publication number
KR20030008915A
KR20030008915A KR1020010043946A KR20010043946A KR20030008915A KR 20030008915 A KR20030008915 A KR 20030008915A KR 1020010043946 A KR1020010043946 A KR 1020010043946A KR 20010043946 A KR20010043946 A KR 20010043946A KR 20030008915 A KR20030008915 A KR 20030008915A
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KR
South Korea
Prior art keywords
bumper
side members
upper beam
vehicle
bumper cover
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KR1020010043946A
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Korean (ko)
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KR100453855B1 (en
Inventor
정광섭
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현대자동차주식회사
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Priority to KR10-2001-0043946A priority Critical patent/KR100453855B1/en
Publication of KR20030008915A publication Critical patent/KR20030008915A/en
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Publication of KR100453855B1 publication Critical patent/KR100453855B1/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
    • B60R19/38—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked 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
    • B60R19/18—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
    • 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
    • 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

Abstract

PURPOSE: A vehicle bumper is provided to protect passengers of vehicle from being damaged by sufficiently absorbing impact energy when external impact is eccentrically applied to an upper or a lower portion of the vehicle bumper. CONSTITUTION: A vehicle bumper includes left/right side members(10,20), a bumper cover(30), and upper/lower beams(40,50). The left/right side members(10,20) are positioned parallel along both sides of a vehicle chassis. The bumper cover(30) is positioned at the front of the left/right side members(10,20). The upper beam(40) is positioned between the bumper cover(30) and the left/right side members(10,20). One end of the upper beam(40) is positioned at an inner side of the bumper cover(30) and the other end of the upper beam(40) is fixed to the left/right side members(10,20) by means of brackets(41). The lower beam(50) crosses the upper beam(40), and the center of the lower beam(50) is connected to the upper beam(40) with a pin(51).

Description

자동차의 범퍼{A BUMPER OF AUTOMOBILE}Bumper of car {A BUMPER OF AUTOMOBILE}

본 발명은 자동차의 범퍼에 관한 것이다.The present invention relates to a bumper of a motor vehicle.

일반적으로 자동차의 범퍼(bumper)는 자동차의 전면과 후면에 마련되어 충돌사고시 충격력을 흡수함으로써 운전자와 탑승자의 보호 그리고 차체의 변형을 방지하는 기능을 수행한다.In general, bumpers of a vehicle are provided at the front and rear of the vehicle to absorb impact force during a crash, thereby protecting the driver and the occupant and preventing deformation of the vehicle body.

이러한 자동차의 범퍼는, 자동차의 바디 전면에 범퍼 커버를 마련하고, 이범퍼 커버의 내면에 압소버를 개재하며, 스테이 및 빔을 통해 좌,우 사이드 멤버에 범퍼 커버를 연결함으로써 충돌 발생시 범퍼 커버와 압소버 그리고 스테이와 빔을 통해 좌,우 사이드 멤버에 전달함으로써 완충의 효과를 얻도록 하고 있다.The bumper of the vehicle includes a bumper cover in front of the body of the vehicle, a bumper cover on the inner surface of the bumper cover, and a bumper cover connected to the left and right side members through a stay and a beam. Absorber and the left and right side members through the stay and beam to the buffer effect.

그러나 이러한 통상의 범퍼는, 정면 충돌을 기준으로 하여 설계된 것이기 때문에 근래에 들어와서 상대적으로 지상고가 높은 차량(예를들면 갤로퍼등과 같은 레저용 차량)과 승용차간의 충돌 발생시 효과적으로 충격을 흡수할 수 없었고, 특히 저속 충돌시에도 범퍼의 손상이 심하게 발생되어 수리비의 과다로 소비자에게 경제적인 부담감을 가중시키는 요인이 발생되고 있다.However, since these conventional bumpers are designed based on frontal collisions, they have not been able to effectively absorb shock in recent years when a collision between a relatively high ground vehicle (eg, a recreational vehicle such as a galloper) and a passenger car occurs. In particular, bumper damage is severely generated even at low-speed collisions, causing excessive burden on the consumer due to excessive repair costs.

즉, 지상고가 높은 차량과 일반 승용차간의 충돌이 발생될 때 승용차의 범퍼 상부측으로 편중된 하중이 가해지게 되고, 이에따라 적은 충격에 의해서도 빔 및 스테이 등의 변형이 야기되는 것이다.That is, when a collision occurs between a vehicle having a high ground height and a general passenger vehicle, a load biased toward the upper side of the bumper of the passenger car is applied, and thus deformation of the beam and stay is caused by a small impact.

이러한 문제점을 해결하기 위하여 도 4에서와 같이 미국특허 US0605633호에서는, 좌,우 사이드 멤버(side member;1)상에 브래킷(bracket;2)을 각각 고정 설치하고 커버(cover;3)의 내측 상부에 좌,우 방향으로 길게 빔(beam;4)을 설치한 뒤, 브래킷(2)과 빔(4)의 좌,우 양단에 "L"형상의 연결부재(5)를 고정 설치한 범퍼가 제안되어 있다.In order to solve this problem, as shown in FIG. 4, in US Patent US0605633, a bracket 2 is fixedly installed on the left and right side members 1 and the inner upper part of the cover 3 is respectively installed. Bumper is proposed to install the beam (4) long in the left and right direction, and to fix the "L" shaped connecting member (5) on both ends of the bracket (2) and the left and right of the beam (4) It is.

이러한 종래 범퍼는, 충돌이 발생되면, 빔(4)이 사이드 멤버(1)까지의 거리만큼 휨 변형 및 비틀림 발생을 통해 어느정도의 충격 에너지를 흡수하도록 하여 저속 충돌시 빔 즉, 사이드 멤버(1)의 변형을 방지시키고 있는 것이다.Such a conventional bumper is such that when a collision occurs, the beam 4 absorbs a certain amount of impact energy through bending deformation and torsion by a distance to the side member 1 so that the beam, that is, the side member 1 at a low speed collision, is generated. To prevent deformation.

그러나 이러한 종래 범퍼에 있어서는, 저속 충돌시 어느정도 충격 에너지 흡수 효과가 있는 것은 사실이지만, 빔(4)이 쉽게 변형되어 이를 교환해야 함으로써 이 또는 소비자에게 경제적인 부담감을 가중시키는 요인이 되고 있다.However, in such a conventional bumper, it is true that there is a shock energy absorbing effect to a certain extent at low impacts, but the beam 4 is easily deformed and must be replaced, thereby increasing the economic burden on this or the consumer.

또한 어느정도 이상의 충돌 발생시에는 빔(4)의 쉽게 변형되어 충분한 충격 에너지 흡수효과를 발휘하지 못하는 문제점이 내재되어 있다.In addition, when a collision occurs to a certain degree, there is a problem in that the beam 4 is easily deformed and does not exhibit sufficient impact energy absorption effect.

본 발명은 이와같은 종래의 문제점을 해결하기 위하여 창출된 것으로서, 범퍼 커버를 중심으로 상부 또는 하부에 치우친 충돌이 발생될 때 충분한 충격 에너지 흡수 효과를 발휘할 수 있어 탑승객을 보호할 수 있으며, 저속 충돌시에도 쉽게 손상되는 것이 방지되어 즉, 교환 수리의 우려가 억제됨으로써 소비자의 경제적인 부담감을 줄일 수 있는 자동차의 범퍼를 제공함에 그 목적이 있다.The present invention was created in order to solve such a conventional problem, it is possible to exert a sufficient impact energy absorption effect when the collision occurs in the upper or lower center around the bumper cover can protect the passengers, at the time of low-speed collision It is an object of the present invention to provide a bumper of an automobile that can be easily prevented from being damaged, that is, the risk of replacement and repair is suppressed, thereby reducing the economic burden on the consumer.

상기한 목적을 달성하기 위하여 본 발명은, 차체의 좌,우 하면에 길이 방향으로 나란하게 설치되는 좌,우 사이드 멤버와; 상기 사이드 멤버의 전방에 위치되는 범퍼 커버와; 일단이 범퍼 커버의 내측면에 위치되고, 타단이 하향 경사로 연장되어 좌,우 사이드 멤버의 일측면에 고정되는 상부 빔과; 중심면이 상부 빔의 중심면에 회동 가능하게 결합되며, 상부 빔과 크로스 되도록 설치되는 하부 빔;으로 구성된 것을 그 특징으로 한다.In order to achieve the above object, the present invention, the left and right side members are installed side by side in the longitudinal direction on the lower left and right of the vehicle body; A bumper cover located in front of the side member; An upper beam having one end positioned at an inner side surface of the bumper cover and the other end extending downward in an inclined direction and fixed to one side of left and right side members; The center plane is rotatably coupled to the center plane of the upper beam, the lower beam is installed to cross the upper beam; characterized in that consisting of.

도 1은 본 발명에 따른 자동차 범퍼가 채용된 자동차의 개략적 측면도.1 is a schematic side view of an automobile employing an automobile bumper according to the present invention;

도 2는 충격 흡수수단을 발췌하여 나타낸 단면도.2 is a cross-sectional view showing the shock absorbing means.

도 3은 종래 자동차 범퍼가 채용된 자동차의 개략적 측면도.Figure 3 is a schematic side view of a vehicle employing a conventional car bumper.

<도면의 주요부분에 대한 부호 설명><Description of Signs of Major Parts of Drawings>

10,20 : 좌,우 사이드 멤버30 : 범퍼 커버10,20: left and right side members 30: bumper cover

40,50 : 상,하부 빔41 : 브래킷51 : 핀40,50: upper and lower beam 41: bracket 51: pin

100 : 충격 흡수수단110 : 쇽 업소버111 : 로드100: shock absorbing means 110: shock absorber 111: rod

112 : 실린더 몸체B : 볼트 N : 너트112: cylinder body B: bolt N: nut

도 1 및 도 2에서와 같이 본 발명은, 크게 좌,우 사이드 멤버(side member;10,20)와 범퍼 커버(bumper cover;30) 그리고 상,하부 빔(beam;40,50)으로 대별된다.As shown in FIGS. 1 and 2, the present invention is roughly divided into left and right side members 10 and 20, a bumper cover 30, and upper and lower beams 40 and 50. .

좌,우 사이드 멤버(10,20)는 차체의 좌,우 하면에 길이 방향으로 나란하게 설치된다.The left and right side members 10 and 20 are installed side by side in the longitudinal direction on the left and right lower surfaces of the vehicle body.

범퍼 커버(30)는 사이드 멤버(10,20)의 전방측에 위치되는 것으로서, 충돌시 직접적으로 충격력이 가해지는 부분이다.The bumper cover 30 is located at the front side of the side members 10 and 20 and is a portion to which an impact force is directly applied during a collision.

상부 빔(40)은 범퍼 커버(30)와 사이드 멤버(10,20) 사이에 위치되는 것으로서, 즉, 일단이 범퍼 커버(30)의 내측면에 위치되고 이로부터 하향 경사로 연장되어 타단이 사이드 멤버(10,20)의 측면에 브래킷(bracket;41)을 통해 고정 설치되는 것이다.The upper beam 40 is located between the bumper cover 30 and the side members 10 and 20, that is, one end is located on the inner side of the bumper cover 30 and extends downwardly from the side member so that the other end is side member. 10, 20 will be fixed through the bracket (bracket; 41) to the side.

하부 빔(50)은 상부 빔(40)과 크로스(cross)되도록 설치되는 것으로서, 특히 중심면이 상부 빔(40)의 일측 중심에 회동 가능하게 예를들어 핀(51) 결합된다.The lower beam 50 is installed so as to cross the upper beam 40, and in particular, the center plane is rotatably coupled to, for example, the pin 51 at the center of one side of the upper beam 40.

이와같이 구성된 본 발명은, 상,하부 빔(40,50)이 상호 크로스 상태로 배열 설치된 것이기 때문에 전체적으로 충격 흡수 범위가 넓어져 상부 뿐만 아니라 하부로 치우친 충격이 가해질때도 충격 흡수가 용이하며, 특히 상호간의 회동 가능하도록 결합됨으로써 충격이 가해질 때 회전되면서 충격을 흡수하여 어느정도 저속 충돌시 범퍼 커버(30) 뿐만 아니라 상,하부 빔(40,50) 및 사이드 멤버(10,20) 등에 변형이 야기되는 것을 미연에 방지할 수 있다.According to the present invention configured as described above, since the upper and lower beams 40 and 50 are arranged in a cross state, the overall shock absorption range is widened, so that the shock absorption is easy even when the impact biased to the upper part as well as the lower part is easily applied. It is rotated when it is applied by absorbing the shock, and absorbs the shock, so that deformation is not caused to the bumper cover 30 as well as the upper and lower beams 40 and 50 and the side members 10 and 20 when the impact is lowered to some extent. To prevent it.

한편, 충격 흡수 효과를 좀더 배가시키고, 특히 상,하부 빔(40,50)을 초기 위치로 복귀시킬 수 있도록 하기 위하여 하부 빔(50)의 양단과 대응되는 상부 빔(40) 사이에는 충격 흡수수단(100)이 더 개재되는 바, 이러한 충격 흡수수단(100)으로써는, 양단부가 상부 빔(40) 및 하부 빔(50)에 고정 결합된 쇽업소버(110)가 채용된다.On the other hand, in order to further double the shock absorbing effect, in particular to return the upper and lower beams (40, 50) to the initial position, the shock absorbing means between the upper beam 40 corresponding to both ends of the lower beam (50) As the shock absorbing means 100 is further interposed, the shock absorber 110 having both ends fixedly coupled to the upper beam 40 and the lower beam 50 is employed.

즉, 쇽 업소버(110)의 상,하 로드(111)가 상부 빔(40) 및 하부 빔(50)에 볼트(B)와 너트(N)를 통해 관통 체결됨으로써, 충격이 가해져 상,하부 빔(40,50)이 회전될 때 실린더 몸체(112)내로 로드(111)가 이동되면서 실린더 몸체(112)의 내부에 개재된 가스나 오일 등을 압축하면서 완충되고, 동시에 반발력에 의해 원위치로 복귀된다.That is, the upper and lower rods 111 of the shock absorber 110 are fastened through the bolts B and the nuts N to the upper beam 40 and the lower beam 50, so that an impact is applied to the upper and lower beams. As the rods 111 are moved into the cylinder body 112 when the 40 and 50 are rotated, they are buffered while compressing the gas or oil interposed in the cylinder body 112 and returned to their original positions by the repulsive force. .

따라서 상,하부 빔(40,50)에 가해지는 충격력이 완충될 뿐만 아니라 상,하 빔(40,50)을 초기 위치로 복귀시킴으로써 변형이 야기되는 것이 방지되는 것이다.Therefore, not only the impact force applied to the upper and lower beams 40 and 50 is buffered, but also the deformation is prevented from being caused by returning the upper and lower beams 40 and 50 to their initial positions.

이상과 같이 본 발명은, 범퍼 커버와 사이드 멤버 사이에 크로스 형태로 회전 가능하게 결합된 상,하부 빔을 배열 설치함으로 충돌시 상부 뿐만 아니라 하부 방향으로의 치우쳐 가해지는 충격 흡수가 용이하며, 또한 회전하면서 충격을 흡수하여 좀더 큰 충격 흡수 효과를 얻을 수 있게된다.As described above, in the present invention, the upper and lower beams rotatably coupled in a cross form between the bumper cover and the side member are arranged so that the shock absorbing in the direction as well as the upper and lower sides is easily absorbed during the collision, and also rotates While absorbing the shock it is possible to obtain a larger shock absorbing effect.

이외에도 상,하부 빔 사이에 충격 흡수수단으로써 쇽 업소버를 개재함으로써 충격 흡수 효과를 배가시킬 수 있는 이점이 있으며, 회전된 상,하부 빔을 초기 위치로 복귀시켜 이들의 변형을 방지할 수 있게된다.In addition, there is an advantage that the shock absorbing effect can be doubled by interposing the shock absorber as the shock absorbing means between the upper and lower beams, and the deformation of the rotated upper and lower beams can be prevented by returning them to their initial positions.

Claims (3)

차체의 좌,우 하면에 길이 방향으로 나란하게 설치되는 좌,우 사이드 멤버와;Left and right side members installed side by side in the longitudinal direction on the lower left and right sides of the vehicle body; 상기 사이드 멤버의 전방에 위치되는 범퍼 커버와;A bumper cover located in front of the side member; 일단이 범퍼 커버의 내측면에 위치되고, 타단이 하향 경사로 연장되어 좌,우 사이드 멤버의 일측면에 고정되는 상부 빔과;An upper beam having one end positioned at an inner side surface of the bumper cover and the other end extending downward in an inclined direction and fixed to one side of left and right side members; 중심면이 상부 빔의 중심면에 회동 가능하게 결합되며, 상부 빔과 크로스 되도록 설치되는 하부 빔;으로 구성된 것을 특징으로 하는 자동차의 범퍼.The bumper of claim 1, wherein the center plane is rotatably coupled to the center plane of the upper beam, and the lower beam is installed to cross the upper beam. 제 1 항에 있어서, 상기 하부 빔의 양단부와 대응되는 상부 빔 사이에는 충돌시 상호 반대되는 방향으로 회전하는 상,하부 빔의 회전력을 흡수하고 초기 위치로 복귀시키기 위한 충격 흡수수단이 더 개재되는 것을 특징으로 하는 자동차의 범퍼.According to claim 1, Between both ends of the lower beam and the corresponding upper beam is provided with a shock absorbing means for absorbing the rotational force of the upper and lower beams to rotate in the opposite direction during the collision and return to the initial position The bumper of the car characterized by. 제 2 항에 있어서, 상기 충격 흡수수단은, 양단이 상,하부 빔에 걸림된 쇽 업소버인 것을 특징으로 하는 자동차의 범퍼.3. The bumper of claim 2, wherein the shock absorbing means is a shock absorber whose both ends are caught by upper and lower beams.
KR10-2001-0043946A 2001-07-21 2001-07-21 A bumper of automobile KR100453855B1 (en)

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KR20030072637A (en) * 2002-03-06 2003-09-19 박경덕 Impact dispersion device for vehicle

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KR101251828B1 (en) 2007-12-07 2013-04-09 현대자동차주식회사 Bumper for vehicle

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DE2352179A1 (en) * 1973-10-17 1975-04-30 Daimler Benz Ag IMPACT PROTECTION DEVICE FOR A MOTOR VEHICLE
JPS5847667A (en) * 1981-09-18 1983-03-19 Mazda Motor Corp Car body front structure of automobile
KR960001349U (en) * 1994-06-27 1996-01-19 Bumper beam of car
KR200162442Y1 (en) * 1995-12-29 2000-01-15 정몽규 Fixing structure of bumper
KR19990011103U (en) * 1997-08-30 1999-03-25 정몽규 Bumper Bumper
KR100440855B1 (en) * 2001-06-20 2004-07-19 현대자동차주식회사 A bumper of automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030072637A (en) * 2002-03-06 2003-09-19 박경덕 Impact dispersion device for vehicle

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