KR100406702B1 - Bumper for vehicle - Google Patents

Bumper for vehicle Download PDF

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Publication number
KR100406702B1
KR100406702B1 KR10-2001-0015499A KR20010015499A KR100406702B1 KR 100406702 B1 KR100406702 B1 KR 100406702B1 KR 20010015499 A KR20010015499 A KR 20010015499A KR 100406702 B1 KR100406702 B1 KR 100406702B1
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South Korea
Prior art keywords
bumper
cylinder
piston
collision
bumper cover
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KR10-2001-0015499A
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Korean (ko)
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KR20020075810A (en
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김성택
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현대자동차주식회사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18Bumpers, 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
    • B60R19/20Bumpers, 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 containing mainly gas or liquid, e.g. inflatable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24Arrangements for mounting bumpers on vehicles
    • B60R19/38Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
    • B60R19/40Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles in the direction of an obstacle before a collision, or extending during driving of the vehicle, i.e. to increase the energy absorption capacity of the bumper

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

Abstract

본 발명은 자동차의 범퍼에 관한 것으로서, 특히 차량간의 충돌시 충격 흡수가 양호할 뿐만 아니라, 보행자의 충돌시에도 큰 충격 흡수 효과를 얻을 수 있도록 한 것이다.The present invention relates to a bumper of an automobile, and in particular, the shock absorption is not only good in the event of a collision between the vehicle, but also to achieve a large shock absorption effect even in the collision of pedestrians.

본 발명은, 범퍼 커버(1)와 범퍼 빔(2) 사이의 범퍼 빔(2)에 고정하고, 내부에 일단이 범퍼 커버(1)의 내측단에 연결된 피스톤(11)이 슬라이딩 가능하게 설치되며, 피스톤(11)의 전방측이 서지 탱크(4)에 연결된 실린더(10)와; 실린더(10)의 일측에 마련되어 실린더(10)의 피스톤(11) 후방측을 선택적으로 대기와 연통시키는 에어 밸브(20)와; 충돌에 따라 에어 밸브(20)를 개방하여 대기와 실린더(10)의 피스톤 후방측을 연통시킴으로써 피스톤(11)이 전진되어 범퍼 커버(1)를 내측으로 급속 이동시키는 밸브 개방수단(30);으로 구성된다.The present invention is fixed to the bumper beam (2) between the bumper cover (1) and the bumper beam (2), the one end is connected to the inner end of the bumper cover 1, the piston (11) is slidably installed A cylinder 10 having a front side of the piston 11 connected to the surge tank 4; An air valve 20 provided at one side of the cylinder 10 to selectively communicate the rear side of the piston 11 of the cylinder 10 with the atmosphere; The valve opening means 30 which opens the air valve 20 and communicates the atmosphere with the piston rear side of the cylinder 10 according to a collision, and the piston 11 advances and rapidly moves the bumper cover 1 inward. It is composed.

Description

자동차의 범퍼 {BUMPER FOR VEHICLE}Bumper of car {BUMPER FOR VEHICLE}

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

일반적으로 자동차의 범퍼(bumper)는 강판제 및 플라스틱제로 구분되며, 강판제 범퍼는 통상적으로 강판을 "ㄷ"형으로 형성한 범퍼 본체를 프레임에 고정하고 플라스틱제 범퍼는 차체(통상적으로 사이드 멤버)에 금속제 범퍼 빔을 범퍼 스테이로 고정하고 차체에 플라스틱제 범퍼 커버를 고정하여 범퍼 빔과 범퍼 커버 사이에 플라스틱 발포 에너지 압소버를 배치한 것이다.Generally, bumpers of automobiles are classified into steel and plastics, and steel bumpers usually fix a bumper body having a steel plate formed in a "c" shape to a frame, and a plastic bumper is a body (usually a side member). The metal bumper beam is fixed to the bumper stay, and the plastic bumper cover is fixed to the vehicle body, and the plastic foam energy absorber is disposed between the bumper beam and the bumper cover.

한편, 상술한 강판제 범퍼는 범퍼 본체의 강성에 의하여 충격을 흡수하고, 플라스틱제 범퍼는 주로 에너지 압소버 자체가 가지고 있는 재질의 특성에 의하여 충격을 흡수하는 것으로 차량간의 충돌 발생시 충격 흡수를 주된 기능으로 하는 것이다.On the other hand, the above-mentioned steel plate bumper absorbs the shock by the rigidity of the bumper body, and the plastic bumper mainly absorbs the shock based on the characteristics of the material of the energy absorber itself. It is to be done.

그러나 이러한 종래 범퍼에 있어서는, 상술한 바와 같이 그 주된 기능이 차량간의 충돌시 충격 흡수를 위한 것이기 때문에 차량 및 탑승자의 충격 흡수는 양호한 것이지만, 보행자와의 충돌시에는 충격 흡수가 미약하여 보행자의 상해치가 크게되는 문제점이 야기된다.However, in the conventional bumper, as described above, since the main function is to absorb shock during collision between the vehicles, the shock absorption of the vehicle and the occupant is good. However, when the collision with the pedestrian collides with the pedestrian, the injury value of the pedestrian is increased. The problem of becoming large is caused.

본 발명은 이와같은 종래의 문제점을 해결하기 위하여 창출된 것으로서, 차량간의 충돌시 충격 흡수가 양호할 뿐만 아니라, 보행자의 충돌시에도 큰 충격 흡수 효과를 얻을 수 있는 자동차의 범퍼를 제공함에 그 목적이 있다.The present invention has been made to solve such a conventional problem, and the object of the present invention is to provide a bumper of a vehicle that can not only provide good shock absorption during a collision between vehicles, but also obtain a great shock absorption effect even when a pedestrian crashes. have.

상기한 목적을 달성하기 위하여 본 발명은, 범퍼 커버와 범퍼 빔 사이의 범퍼 빔에 고정하고, 내부에 일단이 범퍼 커버의 내측단에 연결된 피스톤이 슬라이딩 가능하게 설치되며, 피스톤의 전방측이 서지 탱크에 연결된 실린더와; 상기 실린더의 일측에 마련되어 실린더의 피스톤 후방측을 선택적으로 대기와 연통시키는 에어 밸브와; 충돌에 따라 상기 에어 밸브를 개방하여 대기와 실린더의 피스톤 후방측을 연통시킴으로써 피스톤이 전진되어 범퍼 커버를 내측으로 급속 이동시키는 밸브 개방수단;으로 구성된 것을 그 특징으로 한다.In order to achieve the above object, the present invention is fixed to the bumper beam between the bumper cover and the bumper beam, and a piston connected to the inner end of the bumper cover is slidably installed therein, and the front side of the piston is a surge tank. A cylinder connected to; An air valve provided on one side of the cylinder to selectively communicate the piston rear side of the cylinder with the atmosphere; It is characterized in that it comprises a valve opening means for opening the air valve in accordance with the collision to communicate the piston and the piston rear side of the cylinder to move the piston forward to move the bumper cover inward.

도 1은 본 발명에 따른 자동차 범퍼의 단면도.1 is a cross-sectional view of an automobile bumper according to the present invention.

도 2는 도 1의 요부 발췌 사시도.Figure 2 is a perspective view of the main portion of Figure 1 excerpt.

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

1 : 범퍼 커버 2 : 범퍼 빔1: bumper cover 2: bumper beam

10 : 실린더 11 : 피스톤10 cylinder 11 piston

20 : 에어 밸브 30 : 밸브 개방수단20: air valve 30: valve opening means

31 : 충격 감지레버 32 : 회전 레버31: shock detection lever 32: rotary lever

도 1 및 도 2에서와 같이 본 발명은, 크게 실린더(cylinder;10)와 에어 밸브(air valve;20) 및 밸브 개방수단(30)으로 대별된다.1 and 2, the present invention is roughly divided into a cylinder 10, an air valve 20, and a valve opening means 30. As shown in FIG.

실린더(10)는 범퍼 커버(bumper cover;1)와 범퍼 빔(bumper beam;2) 사이의 범퍼 빔(2)에 고정되는 것으로서, 내부에는 피스톤(piston;11)이 왕복 이송 가능하게 설치된다.The cylinder 10 is fixed to the bumper beam 2 between the bumper cover 1 and the bumper beam 2, and a piston 11 is installed inside the cylinder 10 in a reciprocating manner.

이때 피스톤(11)의 외측단은 범퍼 커버(1)와 결합된 상태이며, 특히 실린더(10)의 일측면에 마련된 코일 스프링으로 지지된 베어링(B)을 통해 원활한 이송이 가능하도록 그 로드가 구름 지지된 상태이다.At this time, the outer end of the piston (11) is coupled to the bumper cover (1), in particular, the rod is rolling to enable a smooth transfer through the bearing (B) supported by the coil spring provided on one side of the cylinder (10) It is supported.

또한 실린더(10)는, 피스톤(11)의 전방측이 서지 탱크(4)와 연결되어 있어 내부가 진공(眞空) 상태를 유지하고 있다.Moreover, the cylinder 10 has the front side of the piston 11 connected with the surge tank 4, and the inside maintains a vacuum state.

에어 밸브(20)는, 실린더(10)의 일측에 마련되는 것으로서, 실린더(10)와 외부 즉, 진공 상태인 실린더(10)의 피스톤(11) 후방측과 대기가 연통되는 것을 선택적으로 차단하는 기능을 수행한다.The air valve 20 is provided on one side of the cylinder 10, and selectively blocks air from communicating with the cylinder 10 outside, that is, the piston 11 rear side of the cylinder 10 in a vacuum state. Perform the function.

밸브 개방수단(30)은, 보행자 또는 차량과의 충돌시 에어 밸브(20)를 선택적으로 개방시켜 실린더(10)내로 대기를 유입시킴으로써 피스톤(11)의 이송에 따른 범퍼 커버(1)의 이송을 도모하기 위하여 마련되는 것이다.The valve opening means 30 selectively transfers the air valve 20 in a collision with a pedestrian or a vehicle to introduce air into the cylinder 10, thereby transferring the bumper cover 1 according to the transfer of the piston 11. It is provided for the purpose of planning.

즉, 충돌 사고시 실린더(10)내와 대기중의 압력차를 통해 피스톤(11)을 이동시키고 동시에 범퍼 커버(1)를 이동시켜 충격을 흡수하도록 하는 기능을 수행하는 것이다.That is, in the event of a collision, the piston 11 is moved through a pressure difference between the cylinder 10 and the atmosphere, and at the same time, the bumper cover 1 is moved to absorb a shock.

이러한 밸브 개방수단(30)의 상세한 구조를 보면, 크게 충격 감지레버(31)와, 회전 레버(32)로 이루어진다.Looking at the detailed structure of the valve opening means 30, the impact detection lever 31 and the rotary lever 32 is composed of.

충격 감지레버(31)는, 실린더(10)에 설치한 브래킷(3)에 대략 그 중심면이 회전 가능하게 핀으로 설치되는 것으로서 일단은 범퍼 커버(1)의 내측에 지지된다.The shock detection lever 31 is installed in the bracket 3 attached to the cylinder 10 so that its center surface can be rotatably provided by a pin, and one end is supported inside the bumper cover 1.

회전 레버(32)는, 범퍼 빔(2)상에 고정 설치된 브래킷(bracket;5)에 중심면이 회전 가능하게 핀으로 설치되는 것으로서, 일단은 충격 감지레버(31)의 자유단과 접촉되도록 설치되어 이 충격 감지레버(31)의 회전에 의해 시계방향으로 회전되도록 위치되며, 타단은 전술한 에어 밸브(20)와 연결된다.The rotary lever 32 is a pin that is rotatably installed in the center of the bracket (5) fixed on the bumper beam (2), one end is installed to contact the free end of the impact detection lever 31 The shock detection lever 31 is rotated in a clockwise direction by rotation, and the other end is connected to the air valve 20 described above.

이와같이 구성된 본 발명은, 차량간의 충돌 또는 보행자와의 충돌이 발생하게 되면, 범퍼 커버(1)가 충격에 의해 후방으로 이동됨과 동시에 이 범퍼 커버(1)에 일단이 지지된 충격 감지레버(31)의 자유단이 반시계방향으로 회전된다.According to the present invention configured as described above, when a collision between vehicles or a collision with a pedestrian occurs, the bumper cover 1 is moved backward by an impact and at the same time, the shock detection lever 31 having one end supported by the bumper cover 1 is provided. The free end of is rotated counterclockwise.

이 충격 감지레버(31) 자유단의 반시계방향의 회전에 의해 이와 접촉되도록 설치된 회전레버(32)의 일단이 시계방향으로 회전되며, 동시에 이 회전 레버(32)의 타단에 결합된 에어 밸브(20)가 화살표방향으로 이동하면서 개방됨으로써 진공 상태인 실린더(10)의 피스톤(11) 후방측이 대기(大氣)와 연통되게 된다.One end of the rotary lever 32 provided to be in contact with this by the counterclockwise rotation of the free end of the impact detection lever 31 is rotated clockwise, and at the same time an air valve coupled to the other end of the rotary lever 32 ( 20 is opened while moving in the direction of the arrow so that the piston 11 rear side of the cylinder 10 in a vacuum state communicates with the atmosphere.

이와같이 실린더(10)의 피스톤(11) 후방측이 대기와 연통되면, 즉 피스톤(11)의 후방은 대기압이 작용하고 피스톤(11)의 전방은 흡기부압이 작용함으로써 피스톤(11)의 전·후방 사이에 압력차가 발생되고, 이 압력차에 의해 피스톤(11)이 범퍼 빔(2) 측으로 이동하게 된다.When the rear side of the piston 11 of the cylinder 10 communicates with the atmosphere in this way, that is, the rear side of the piston 11 acts as an atmospheric pressure and the intake side pressure acts as the front of the piston 11 to the front and rear of the piston 11. A pressure difference is generated between them, and the pressure difference causes the piston 11 to move to the bumper beam 2 side.

이와같이 피스톤(11)이 범퍼 빔(2)측으로 이동하면, 피스톤(11)의 로드단에 결합된 범퍼 커버(1)가 후방으로 급속이동하게 되면서 충격을 흡수하게 되는 바, 따라서 차량간의 충돌 및 보행자와의 충돌시 큰 충격 흡수 효과를 발휘함으로써 차량충돌시는 탑승자의 보호를 좀더 도모할 수 있게되고, 보행자 충돌시에도 보행자에게 가해지는 상해치를 감소시킬 수 있게되는 것이다.When the piston 11 moves to the bumper beam 2 side as described above, the bumper cover 1 coupled to the rod end of the piston 11 rapidly moves backwards to absorb shocks, and thus collision between vehicles and pedestrians. By exerting a great shock absorbing effect when colliding with the vehicle, it is possible to further protect the occupant during a vehicle crash, and to reduce the injury value to the pedestrian even in the case of a pedestrian collision.

이상과 같이 본 발명은, 범퍼 커버와 범퍼 빔 사이에 차량간의 충돌 및 특히 보행자와의 충돌시 범퍼 커버를 급속히 이동시킬 수 있도록 실린더와 레버들을 마련함으로써 충격 흡수 효과를 크게할 수 있다.As described above, the present invention can increase the shock absorbing effect by providing cylinders and levers so that the bumper cover can be moved rapidly during a collision between the bumper cover and the bumper beam and in particular a collision with a pedestrian.

따라서 차량 내부의 탑승자 보호 뿐만 아니라 보행자에게 가해질 수 있는 상해치를 감소시킬 수 있는 이점이 있다.Therefore, there is an advantage that can reduce the injuries that can be applied to the pedestrian as well as to protect the occupants inside the vehicle.

Claims (3)

범퍼 커버와 범퍼 빔 사이의 범퍼 빔에 고정하고, 내부에 일단이 범퍼 커버의 내측단에 연결된 피스톤이 슬라이딩 가능하게 설치되며, 피스톤의 전방측이 서지 탱크에 연결된 실린더와;A cylinder fixed to the bumper beam between the bumper cover and the bumper beam, the piston having one end connected to the inner end of the bumper cover to be slidable, and having a front side connected to the surge tank; 상기 실린더의 일측에 마련되어 실린더의 피스톤 후방측을 선택적으로 대기와 연통시키는 에어 밸브와;An air valve provided on one side of the cylinder to selectively communicate the piston rear side of the cylinder with the atmosphere; 충돌에 따라 상기 에어 밸브를 개방하여 대기와 실린더의 피스톤 후방측을 연통시킴으로써 피스톤이 전진되어 범퍼 커버를 내측으로 급속 이동시키는 밸브 개방수단;으로 구성된 것을 특징으로 하는 자동차의 범퍼.And a valve opening means for opening the air valve and communicating the atmosphere with the piston rear side of the cylinder in accordance with a collision, thereby advancing the piston and rapidly moving the bumper cover inward. 제 1 항에 있어서, 상기 밸브 개방수단은, 실린더에 고정한 브래킷에 그 중심면이 회전 가능하게 힌지 결합되며, 일단이 범퍼 커버의 내측에 지지된 충격 감지레버와;The method of claim 1, wherein the valve opening means, the center surface is hinged rotatably coupled to the bracket fixed to the cylinder, one end of the shock detection lever is supported on the inside of the bumper cover; 상기 범퍼 빔상에 고정 설치된 브래킷상에 중심면이 회동 가능하게 힌지 결합되며, 일단은 충격 감지레버의 자유단과 접촉되도록 위치되고, 타단이 에어 밸브와 결합된 회전 레버;로 이루어진 것을 특징으로 하는 자동차의 범퍼.The center surface is hinged rotatably on the bracket fixedly mounted on the bumper beam, one end is positioned to contact the free end of the impact detection lever, the other end is a rotary lever coupled to the air valve; bumper. 제 2 항에 있어서, 상기 실린더의 일측면에는 내부를 따라 슬라이딩 이송되는 피스톤 로드를 가이딩 하기 위한 베어링이 더 마련된 것을 특징으로 하는 자동차의 범퍼.The bumper of claim 2, wherein a bearing is provided on one side of the cylinder to guide the piston rod sliding along the inside thereof.
KR10-2001-0015499A 2001-03-24 2001-03-24 Bumper for vehicle Expired - Fee Related KR100406702B1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890012836A (en) * 1988-02-04 1989-09-19 송철수 Damage prevention device in the event of a car crash
KR900012781A (en) * 1989-02-14 1990-09-01 김철수 Vehicle shock absorber
KR970039279A (en) * 1995-12-23 1997-07-24 전성원 Bumper Shock Absorption Hydraulic Cylinder
KR19980034949U (en) * 1996-12-11 1998-09-15 박병재 Shock absorber with built-in piston
JPH11170936A (en) * 1997-12-09 1999-06-29 Kayaba Ind Co Ltd Impact buffer
KR200171403Y1 (en) * 1999-09-07 2000-03-15 박술갑 Sub-bumper of a car
KR20020049651A (en) * 2000-12-19 2002-06-26 이계안 Bumper for vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890012836A (en) * 1988-02-04 1989-09-19 송철수 Damage prevention device in the event of a car crash
KR900012781A (en) * 1989-02-14 1990-09-01 김철수 Vehicle shock absorber
KR970039279A (en) * 1995-12-23 1997-07-24 전성원 Bumper Shock Absorption Hydraulic Cylinder
KR19980034949U (en) * 1996-12-11 1998-09-15 박병재 Shock absorber with built-in piston
JPH11170936A (en) * 1997-12-09 1999-06-29 Kayaba Ind Co Ltd Impact buffer
KR200171403Y1 (en) * 1999-09-07 2000-03-15 박술갑 Sub-bumper of a car
KR20020049651A (en) * 2000-12-19 2002-06-26 이계안 Bumper for vehicle

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