KR102104742B1 - A device for absorbing shock of a rear end collision for a High Weight vehicle - Google Patents

A device for absorbing shock of a rear end collision for a High Weight vehicle Download PDF

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KR102104742B1
KR102104742B1 KR1020190019809A KR20190019809A KR102104742B1 KR 102104742 B1 KR102104742 B1 KR 102104742B1 KR 1020190019809 A KR1020190019809 A KR 1020190019809A KR 20190019809 A KR20190019809 A KR 20190019809A KR 102104742 B1 KR102104742 B1 KR 102104742B1
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plate
space portion
buffer plate
buffer
vehicle
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KR1020190019809A
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Korean (ko)
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KR102104742B9 (en
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박연화
유재영
최인묵
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박연화
유재영
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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
    • B60R19/56—Fittings damping bouncing force in truck collisions, e.g. bumpers; Arrangements on high-riding vehicles, e.g. lorries, for preventing vehicles or objects from running thereunder
    • 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
    • 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
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/145—Haulage vehicles, trailing trucks

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

Abstract

The present invention relates to a rear shock absorber of a heavy vehicle. The objective of the present invention is to provide the rear shock absorber of a heavy vehicle, wherein multiple plates having space portions are overlapped to effectively absorb impact force generated by a rear colliding vehicle to prevent the impact force from returning to the rear colliding vehicle, thereby absorbing and dispersing the impact force by sequential distortion of the multiple plates during a rear collision.

Description

고중량 차량의 후방 완충장치{A device for absorbing shock of a rear end collision for a High Weight vehicle}A device for absorbing shock of a rear end collision for a High Weight vehicle}

본 발명은 고중량 차량의 후방 완충장치에 관한 것으로, 보다 상세하게 후방 추돌차량으로 인해 발생된 충격력이 후방 추돌차량으로 되돌아가지 않도록 효과적으로 흡수할 수 있도록 공간부를 갖는 다중 판을 중첩하여 형성함으로써 후방 추돌시 다중 판의 순차적 찌그러짐으로 충격력을 흡수하여 분산시키도록 한 고중량 차량의 후방 완충장치에 관한 것이다.The present invention relates to a rear shock absorber of a heavy-duty vehicle, and more specifically, when a rear collision occurs by overlapping and forming multiple plates having spaces so as to effectively absorb the impact force generated by the rear collision vehicle so as not to return to the rear collision vehicle. It relates to a rear shock absorber of a heavy vehicle that absorbs and disperses impact force by sequential distortion of multiple plates.

주지된 바와 같이, 대형 화물차량의 후방에는 외부로부터의 추돌이나 충돌로 인해 발생되는 충격으로부터 차량이나 탑승자를 보호할 수 있도록 차체의 강성을 증대하며 충격을 흡수하는 구조의 범퍼(bumper)가 설치되는 바, 이러한 범퍼(6)는 도 1에 도시된 바와 같이, 차량의 외관미를 향상시키며 통상적으로 스틸 재질의 철판 구조물이 체결 수단을 이용해 차량의 프레임에 고정되도록 구성된다.As is well known, a bumper having a structure that absorbs impact while increasing the rigidity of the vehicle body is installed at the rear of a large cargo vehicle to protect the vehicle or passengers from impacts caused by collisions or collisions from the outside. Bar, such a bumper 6, as shown in Figure 1, improves the appearance of the vehicle and is typically configured to be fixed to the frame of the vehicle using a steel plate structure made of steel.

그리고, 대형 화물차량(2)의 후방부(4)에 구성되는 후방범퍼(rear bumper: 6)는 승용차와 같은 차량의 후방 추돌시 승용차의 앞부분이 화물차량의 적재함 하면으로 침범하여 운전자나 동승자에게 치명적인 상해를 입히는 것을 방지하고자 법규로 제정한 것으로 소형 1톤 화물차량에서 대형 차량에 이르기까지 광범위하게 적용되고 있다.And, the rear bumper (6) configured in the rear portion (4) of the large cargo vehicle (2) when the rear collision of a vehicle, such as a passenger car, the front part of the passenger car invades the lower surface of the cargo vehicle to the driver or passenger It is enacted by law to prevent fatal injuries and is widely applied from small one-ton freight vehicles to large vehicles.

종래의 화물차량(2) 후방에 적용되는 후방범퍼(6)는, 후방차체의 하측으로 지지 프레임에 의하여 지지되어 화물차량의 하측으로 돌출되도록 구성된다.The rear bumper 6, which is applied to the rear of the conventional freight vehicle 2, is supported by a support frame to the lower side of the rear body and is configured to protrude to the lower side of the freight vehicle.

그러나, 이와 같은 화물차량의 후방범퍼(6)는 차체 구조상 설치되는 위치가 일반 소형 차량보다 높은 곳에 설치되며 차량의 주행중 추돌(追突)이 발생되면 승용차와 같은 소형 차량은 차체의 구조가 유선형이기 때문에 화물차량의 범퍼 하측을 통하여 차체의 하측으로 진입하여 대형 사고가 유발되는 문제점이 있었다.However, the rear bumper 6 of such a freight vehicle is installed in a position higher than a general small vehicle due to the structure of the vehicle body, and when a collision occurs while driving the vehicle, the small vehicle such as a passenger car has a streamlined body structure. There was a problem in that a large accident occurred by entering the lower side of the body through the lower side of the bumper of the freight vehicle.

더군다나, 고중량인 화물차량(2)의 경우, 후방에서 승용차가 추돌하는 경우, 화물차량(2)이 고중량이므로 승용차의 추돌력에 의해 전방으로 거의 밀리지 않기 때문에 승용차에 충격력이 그대로 전달된다는 문제가 있었다.Furthermore, in the case of the heavy-duty freight vehicle 2, when the passenger car collides from the rear, the impact force is transmitted to the passenger car as it is because the freight vehicle 2 is heavy and hardly pushed forward due to the collision force of the passenger car. .

최근에는 이러한 상기 후방범퍼(6)의 외측면에는 발포고무와 같은 충격흡수부재(미도시)를 매개로 하여 범퍼 페이셔(bumper fascia)가 장착되어 외관미를 향상시킴과 더불어 보다 용이하게 충격을 흡수할 수 있게 하였다.Recently, a bumper fascia is mounted on the outer surface of the rear bumper 6 via a shock absorbing member (not shown) such as foamed rubber to improve the appearance and impact more easily. And allowed to absorb.

그러나, 이와 같은 충격흡수부재는 강재의 범퍼(6)와 일체형으로 충돌 초기의 충격력은 어느 정도 해소할 수 있지만, 이를 충분히 흡수하지 못하고 차체에 바로 전달하여 화물차량 운전자 또는 탑승자에게 그 충격이 전달된다.However, such a shock absorbing member is integral with the bumper 6 of the steel material, so that the impact force at the initial stage of the collision can be resolved to some extent, but it is not sufficiently absorbed and transmitted directly to the vehicle body, so that the shock is transmitted to the driver or passenger of the freight vehicle. .

또한, 후방에서 추돌 또는 충돌하는 소형 차량은 되돌아온 충격이 고스란히 전해져 인명 사망사고나 대량 차량 파손으로 이어지는 문제점이 있었다.In addition, a small vehicle colliding or colliding from the rear has a problem in that the returned shock is transmitted intactly, leading to a fatal accident or damage to a large vehicle.

그리고, 필요에 따라 상기 범퍼(6)와 함께 스프링(미도시)과 같은 탄성부재를 사용하여 충격이 발생하면 상기 스프링이 충격에너지를 탄성에너지로 저장시켜 충격을 분산 흡수시킬 수 있도록 구성하기도 하지만, 이러한 스프링 등의 탄성부재만을 이용한 구조 또한 초기의 충격에너지는 어느 정도 흡수하여 해소할 수 있지만 이어지는 추돌에 의해 발생하는 에너지는 해소할 수 없으며 상기 탄성부재가 원상태로 돌아갈 때 충격에너지는 고스란히 후방으로 전달되어 후방에서 충돌한 소형차량에 그 충격을 되돌려준다.In addition, if an impact occurs by using an elastic member such as a spring (not shown) together with the bumper 6, the spring may be configured to store shock energy as elastic energy to absorb and disperse the shock. The structure using only an elastic member such as a spring can also absorb and resolve the initial impact energy to some extent, but the energy generated by the subsequent collision cannot be resolved, and when the elastic member returns to its original state, the impact energy is transmitted back to the rear. It returns the impact to a small vehicle that collides from the rear.

일반적으로, 차량 추돌사고시 추돌은 1차 추돌로 끝나지 않고 차량끼리의 부딪치는 반발력과 차량 탑승자의 브레이크 제어 및 뒤이은 차량의 추돌에 의한 2차 추돌에 의해 다단계로 발생하게 된다.In general, in a vehicle collision accident, the collision does not end with the first collision, but is generated in multiple stages by the repulsive force of collision between vehicles, the brake control of the vehicle occupant, and the second collision due to the collision of the following vehicle.

이에 따라 소형차량의 운전자나 탑승자는 되돌아오는 충격에너지에 의해 2중의 대형사고를 겪게 되는 문제점이 발생한다.Accordingly, a problem arises in that a driver or a passenger of a small vehicle experiences a double large accident due to the impact energy that comes back.

본 발명은 상기한 종래 기술의 사정을 감안하여 이루어진 것으로, 후방 추돌차량으로 인해 발생된 충격력이 후방 추돌차량으로 되돌아가지 않도록 효과적으로 흡수할 수 있도록 공간부를 갖는 다중 판을 중첩하여 형성함으로써 후방 추돌시 다중 판의 순차적 찌그러짐으로 충격력을 흡수하여 분산시키도록 한 고중량 차량의 후방 완충장치를 제공함에 그 목적이 있다. The present invention has been made in view of the above-described circumstances of the prior art, and is formed by overlapping multiple plates having spaces so as to effectively absorb the impact force generated by the rear collision vehicle so as not to return to the rear collision vehicle. An object of the present invention is to provide a rear shock absorber for a heavy vehicle that absorbs and disperses impact force by sequential distortion of the plate.

상기한 목적을 달성하기 위해, 본 발명의 바람직한 실시예에 따르면 고중량 차량(2)의 후방범퍼(6) 상에 결합되되, 내부에 중공상태의 공간부를 갖도록 중첩되어 형성되는 다중의 완충판과; 그 완충판의 외부에 중첩되며 충격력을 흡수하는 연질의 발포 고무판(36)과; 상기 발포 고무판(36)의 외부에 씌워져 부식을 방지하는 아연도금판(40)과; 상기 후방범퍼(6)와 완충판, 발포고무판(36) 및 아연도금판(40)을 결합시키는 결합수단으로 이루어져, 후방 추돌시 다중 판의 순차적 찌그러짐으로 충격력을 흡수하여 분산시키도록 한 것을 특징으로 하는 고중량 차량의 후방 완충장치가 제공된다.In order to achieve the above object, according to a preferred embodiment of the present invention is coupled to the rear bumper 6 of the heavy vehicle 2, a plurality of buffer plates formed overlapping to have a hollow space portion therein; A soft foam rubber plate (36) superimposed on the outside of the buffer plate and absorbing impact force; A zinc plated plate 40 which is covered on the outside of the foamed rubber plate 36 to prevent corrosion; The rear bumper (6) and the shock absorber plate, foam rubber plate (36) and a galvanized plate (40) consisting of coupling means, characterized in that to absorb and disperse the impact force by sequential distortion of multiple plates during rear collision A rear shock absorber of a heavy vehicle is provided.

바람직하게, 상기 공간부는 제 1완충판(12)의 중앙에 형성된 제 1공간부(14)와; 상기 제 1공간부(14)를 둘러싸면서, 제 2완충판(18)의 중앙에 형성된 제 2공간부(20)와; 상기 제 2공간부(20)를 둘러싸면서, 제 3완충판(24)의 중앙에 형성된 제 3공간부(26)와; 상기 제 3공간부(26)를 둘러싸면서, 제 4완충판(30)의 중앙에 형성된 제 4공간부(32)로 이루어진 것을 특징으로 하는 고중량 차량의 후방 완충장치가 제공된다.Preferably, the space portion includes a first space portion 14 formed in the center of the first buffer plate 12; A second space portion 20 formed in the center of the second buffer plate 18 while surrounding the first space portion 14; A third space portion 26 formed in the center of the third buffer plate 24 while surrounding the second space portion 20; A rear shock absorber of a heavy-duty vehicle is provided, which comprises a fourth space portion 32 formed in the center of the fourth buffer plate 30 while surrounding the third space portion 26.

바람직하게, 상기 완충판은 그 가장자리에 상호 밀착되어 중첩되는 제 1 내지 제 4 받침부(16, 22, 28, 34)가 구성되고, 상기 발포 고무판(36)의 가장자리에 제 1 내지 제 4 받침부(16, 22, 28, 34)와 밀착되어 중첩되는 제 5 받침부(38)가 형성되며, 상기 아연도금판(40)의 가장자리에 상기 제 5받침부(38)와 밀착되어 중첩되는 제 6받침부(40)가 형성된 것을 특징으로 하는 고중량 차량의 후방 완충장치가 제공된다.Preferably, the buffer plate is composed of first to fourth support portions 16, 22, 28, and 34 that overlap each other in close contact with the edge thereof, and the first to fourth support portions are provided at the edge of the foamed rubber plate 36. (16, 22, 28, 34) is formed in close contact with the fifth support portion 38 is overlapped, the edge of the zinc plated plate 40 is in close contact with the fifth support portion 38 overlapping the sixth Provided is a rear shock absorber of a heavy vehicle, characterized in that the support portion 40 is formed.

바람직하게, 상기 제 1 내지 제 6 받침부(16, 22, 28, 34, 38, 40)는 그 소정부에 볼트(42)가 관통되는 제 1내지 제 4 볼트 관통공(16a, 22a, 28a, 34a, 38a, 40a)이 형성된 것을 특징으로 하는 고중량 차량의 후방 완충장치가 제공된다.Preferably, the first to sixth support portions (16, 22, 28, 34, 38, 40) are first to fourth bolt through holes (16a, 22a, 28a) through which a bolt (42) passes through a predetermined portion thereof. , 34a, 38a, and 40a) are provided.

바람직하게, 상기 완충판은 상기 후방범퍼(6)의 페이스면에 밀착되고, 철부(54)와 요부가 반복되어 내부에 폐쇄된 제 1공간부(52)가 형성된 제 1완충판(50)과; 상기 제 1완충판(50)을 덮도록 장착되어 상기 제 1완충판(50)과의 사이에 폐쇄된 제 2공간부(58)가 형성된 제 1 지지판(56)과; 상기 제 1지지판(56)을 덮도록 장착되어 철부(66)와 요부가 반복되어 내부에 폐쇄된 제 3공간부(62)가 형성된 제 2완충판(60)과; 상기 제 2완충판(60)을 덮도록 장착되어 상기 제 2완충판(60)과의 사이에 폐쇄된 제 4공간부(70)가 형성된 제 2 지지판(68)과; 상기 제 2지지판(68)의 외부에 중첩되며 충격력을 흡수하는 연질의 발포 고무판(36)과; 상기 발포 고무판(36)의 외부에 씌워져 부식을 방지하는 아연도금판(40)으로 순차 중첩된 것을 특징으로 하는 고중량 차량의 후방 완충장치가 제공된다.Preferably, the buffer plate is in close contact with the face surface of the rear bumper 6, the first buffer plate 50 is formed with the first space portion 52 closed therein by repeating the concave portion 54 and the recess; A first support plate 56 mounted to cover the first buffer plate 50 and having a second space portion 58 closed between the first buffer plate 50; A second buffer plate 60 formed to cover the first support plate 56 and having a third space portion 62 closed therein repeatedly by a convex portion 66 and a concave portion; A second support plate 68 mounted to cover the second buffer plate 60 and having a fourth space portion 70 closed between the second buffer plate 60; A soft foam rubber plate 36 superimposed on the outside of the second support plate 68 and absorbing impact force; A rear shock absorber of a heavy vehicle is provided, characterized in that it is sequentially overlapped with a galvanized plate (40) which is covered on the outside of the foamed rubber plate (36) to prevent corrosion.

바람직하게, 상기 제 4공간부(70)의 하면 중앙은 제 1완충판(50)의 상기 철부(54)의 상면 중앙과 동일 선상에 위치되고, 상기 제 4공간부(70)의 하면 면적은 제 1완충판(50)의 상기 철부(54)의 상면 면적보다 작아서 제 4공간부(70)의 하면을 통해 전달되는 충격력은 상기 철부(54)의 상면 일부에만 가해지게 된 것을 특징으로 하는 고중량 차량의 후방 완충장치가 제공된다.Preferably, the center of the lower surface of the fourth space portion 70 is located on the same line as the center of the upper surface of the iron portion 54 of the first buffer plate 50, and the area of the lower surface of the fourth space portion 70 is The impact force transmitted through the lower surface of the fourth space portion 70 is smaller than the area of the upper surface of the iron portion 54 of the first buffer plate 50, so that only a portion of the upper surface of the iron portion 54 is applied. Rear shock absorbers are provided.

바람직하게, 상기 결합수단은 용접일 수도 있는 것을 특징으로 하는 고중량 차량의 후방 완충장치가 제공된다. Preferably, the coupling means is provided with a rear shock absorber for a heavy vehicle, characterized in that it may be welding.

본 발명에 따른 고중량 차량의 후방 완충장치는 독립된 공간부를 다수개 형성하고, 그 공간부들이 상호 내부에 중첩되게 배치함으로써 작은 부피로 구성하더라도 매우 효과적인 충격 완충력을 발휘함으로써 후방에 추돌하는 차량의 승객을 보호할 수 있다는 장점이 있다.The rear shock absorber of a heavy vehicle according to the present invention forms a plurality of independent spaces and arranges the spaces to overlap each other, so that even when configured in a small volume, it exerts a very effective shock-absorbing force to help the vehicle passenger collide in the rear. It has the advantage of being able to protect.

도 1은 종래의 실시예에 따른 고중량 차량의 후방장치를 도시한 사시도,
도 2는 본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치를 도시한 측단면도,
도 3은 본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치의 다른 예를 도시한 측단면도이다.1 is a perspective view showing a rear device of a heavy vehicle according to a conventional embodiment,
Figure 2 is a side cross-sectional view showing a rear shock absorber of a heavy vehicle according to an embodiment of the present invention,
3 is a side cross-sectional view showing another example of a rear shock absorber of a heavy vehicle according to an embodiment of the present invention.

이하, 본 발명에 대해 도면을 참조하여 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.

도 2는 본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치를 도시한 측단면도이다.2 is a side cross-sectional view showing a rear shock absorber of a heavy vehicle according to an embodiment of the present invention.

이를 참조하면, 본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치(10)는 후방 추돌차량으로 인해 발생된 충격력이 후방 추돌차량으로 되돌아가지 않도록 효과적으로 흡수할 수 있도록 공간부를 갖는 다중 판을 중첩하여 형성함으로써 후방 추돌시 다중 판의 순차적 찌그러짐으로 충격력을 흡수하여 분산시키도록 한 장치이다.Referring to this, the rear shock absorber 10 of a heavy vehicle according to an embodiment of the present invention overlaps multiple plates having a space so as to effectively absorb the impact force generated by the rear collision vehicle so as not to return to the rear collision vehicle It is a device that absorbs and disperses the impact force by sequential crushing of multiple plates during rear collision.

본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치(10)는 고중량 차량(2)의 후방범퍼(6) 상에 결합되어 완충작용을 함으로써, 후방에 추돌하는 승용차의 승객을 보호할 수 있도록 한다.The rear shock absorber 10 of the heavy vehicle according to an embodiment of the present invention is coupled to the rear bumper 6 of the heavy vehicle 2 to perform a cushioning action, so as to protect the passengers of the passenger car colliding with the rear. do.

이를 위해, 본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치(10)는 고중량 차량(2)의 후방범퍼(6) 상에 밀착 결합되면서, 동시에 내부에 중공상태의 공간부를 갖도록 중첩되어 형성되는 다중의 완충판과; 그 완충판의 외부에 중첩되며 충격력을 흡수하는 연질의 발포 고무판(36)과; 상기 발포 고무판(36)의 외부에 씌워져 부식을 방지하는 아연도금판(40)으로 구성된다.To this end, the rear shock absorber 10 of the heavy vehicle according to an embodiment of the present invention is closely coupled on the rear bumper 6 of the heavy vehicle 2, and at the same time overlapped to have a hollow space therein. A plurality of buffer plates; A soft foam rubber plate (36) superimposed on the outside of the buffer plate and absorbing impact force; It is composed of a galvanized plate 40 that is covered on the outside of the foamed rubber plate 36 to prevent corrosion.

따라서, 상기 후방범퍼(6)와 완충판, 발포고무판(36) 및 아연도금판(40)을 결합시키는 결합수단으로 이루어져, 후방 추돌시 다중 판의 순차적 찌그러짐으로 충격력을 흡수하여 분산시키도록 한다.Therefore, the rear bumper 6 and the buffer plate, the foamed rubber plate 36 and the galvanized plate 40 are composed of coupling means for coupling, so as to absorb and disperse the impact force by sequential distortion of multiple plates during rear collision.

보다 상세하게, 상기 공간부는 제 1완충판(12)의 중앙에 형성된 제 1공간부(14)와; 상기 제 1공간부(14)를 둘러싸면서, 제 2완충판(18)의 중앙에 형성된 제 2공간부(20)와; 상기 제 2공간부(20)를 둘러싸면서, 제 3완충판(24)의 중앙에 형성된 제 3공간부(26)와; 상기 제 3공간부(26)를 둘러싸면서, 제 4완충판(30)의 중앙에 형성된 제 4공간부(32)로 이루어진다.More specifically, the space portion includes a first space portion 14 formed in the center of the first buffer plate 12; A second space portion 20 formed in the center of the second buffer plate 18 while surrounding the first space portion 14; A third space portion 26 formed in the center of the third buffer plate 24 while surrounding the second space portion 20; While surrounding the third space portion 26, it is made of a fourth space portion 32 formed in the center of the fourth buffer plate 30.

즉, 상기 제 1, 2, 3, 4 공간부(14, 20, 26, 32)는 상기 제 1, 2, 3, 4완충판(12, 18, 24, 30)에 의해 독립된 공간을 형성하면서, 충격력을 유입받아 찌그러지면서 충격을 완충하게 된다.That is, the first, second, third, and fourth space portions 14, 20, 26, and 32 form independent spaces by the first, second, third, and fourth buffer plates 12, 18, 24, 30, It absorbs the impact force and cushions the impact as it is distorted.

바람직하게, 본 발명은 상기 제 4공간부(30)가 상기 제 1, 2, 3공간부(14, 20, 26)를 감싸게 구성된 상태에서 형성되고, 상기 제 3 공간부(26)는 제 1, 2 공간부(14, 20)를 감싸게 구성된 상태에서 형성되며, 상기 제 2공간부(20)는 제 1공간부(14)를 감싸게 구성된 상태에서 형성된다.Preferably, the present invention is formed in a state in which the fourth space portion 30 is configured to surround the first, second, and third space portions 14, 20, and 26, and the third space portion 26 is the first space portion. , It is formed in a state configured to surround the two space parts 14 and 20, and the second space part 20 is formed in a state configured to surround the first space part 14.

한편, 바람직하게 상기 완충판은 그 가장자리에 상호 밀착되어 중첩되는 제 1 내지 제 4 받침부(16, 22, 28, 34)가 구성되고, 상기 발포 고무판(36)의 가장자리에 제 1 내지 제 4 받침부(16, 22, 28, 34)와 밀착되어 중첩되는 제 5 받침부(38)가 형성되며, 상기 아연도금판(40)의 가장자리에 상기 제 5받침부(38)와 밀착되어 중첩되는 제 6받침부(40)가 형성된다.On the other hand, preferably, the buffer plate is composed of first to fourth supporting portions 16, 22, 28, and 34 that are mutually close to each other and overlap, and the first to fourth bearings are provided at the edge of the foamed rubber plate 36. A fifth supporting portion 38 that is in close contact with the portions 16, 22, 28, and 34 and overlaps, is formed on the edge of the galvanized plate 40 and overlaps with the fifth supporting portion 38. 6 the support portion 40 is formed.

또한, 상기 제 1 내지 제 6 받침부(16, 22, 28, 34, 38, 40)는 그 소정부에 볼트(42)가 관통되는 제 1내지 제 6 볼트 관통공(16a, 22a, 28a, 34a, 38a, 40a)이 형성된다.In addition, the first to sixth support portion (16, 22, 28, 34, 38, 40) is a first through sixth bolt through-holes (16a, 22a, 28a) through which the bolt 42 passes through the predetermined portion, 34a, 38a, 40a) are formed.

따라서, 제 1내지 제 6 볼트 관통공(16a, 22a, 28a, 34a, 38a, 40a)을 통해 삽입되고, 상기 후방범퍼(6)에 대해 체결되는 볼트(42)에 대해 너트(44)로 결합되면 상기 후방범퍼(6)에 대해 상기 제 1, 2, 3, 4완충판(12, 18, 24, 30)은 물론, 발포 고무판(36)과 아연도금판(40)이 모두 볼트 너트에 의해 체결되게 된다.Therefore, it is inserted through the first through sixth bolt through holes 16a, 22a, 28a, 34a, 38a, 40a, and coupled with a nut 44 to a bolt 42 fastened to the rear bumper 6 When the rear bumper 6, the first, second, third, and fourth buffer plates 12, 18, 24, 30, as well as the foam rubber plate 36 and the zinc plated plate 40 are all fastened by bolt nuts. Will be.

이때, 상기 결합수단은 볼트-너트에 제한된 것이 아니고, 다양한 결합수다니 가능한 바, 예컨대, 용접을 통해 후방범퍼(6)에 상기 제 1, 2, 3, 4완충판(12, 18, 24, 30), 발포 고무판(36)과 아연도금판(40)을 결합시킬 수도 있다.At this time, the coupling means is not limited to the bolt-nut, and various combinations are possible, for example, the first, 2, 3, and 4 buffer plates 12, 18, 24, 30 to the rear bumper 6 through welding. ), The foamed rubber plate 36 and the galvanized plate 40 may be combined.

도 3은 본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치의 다른 예를 도시한 측단면도이다.3 is a side cross-sectional view showing another example of a rear shock absorber of a heavy vehicle according to an embodiment of the present invention.

이를 참조하면, 동 도면도 내부에 다수개의 공간부가 형성되고, 각 공간부가 독립된 구조로 이루어져 단계적 흡수 구조를 갖는 완충장치를 도시한 것으로, 그 공간부의 배치가 도 2와는 조금 다른 구조를 갖는다.Referring to this, a plurality of spaces are formed inside the same drawing, and each space is formed of an independent structure and shows a shock absorber having a stepwise absorption structure, and the arrangement of the spaces has a slightly different structure from that of FIG.

동 도면에서, 완충수단은 상기 후방범퍼(6)의 페이스면에 밀착되고, 철부(54)와 요부가 반복되어 내부에 폐쇄된 제 1공간부(52)가 형성된 제 1완충판(50)과; 상기 제 1완충판(50)을 덮도록 장착되어 상기 제 1완충판(50)과의 사이에 폐쇄된 제 2공간부(58)가 형성된 제 1 지지판(56)과; 상기 제 1지지판(56)을 덮도록 장착되어 철부(66)와 요부가 반복되어 내부에 폐쇄된 제 3공간부(62)가 형성된 제 2완충판(60)과; 상기 제 2완충판(60)을 덮도록 장착되어 상기 제 2완충판(60)과의 사이에 폐쇄된 제 4공간부(70)가 형성된 제 2 지지판(68)으로 이루어진다.In the same figure, the buffer means is a first buffer plate 50 is formed in close contact with the face surface of the rear bumper 6, the first space portion 52 closed therein by repeating the concave portion 54 and the concave portion; A first support plate 56 mounted to cover the first buffer plate 50 and having a second space portion 58 closed between the first buffer plate 50; A second buffer plate 60 formed to cover the first support plate 56 and having a third space portion 62 closed therein repeatedly by a convex portion 66 and a concave portion; It is mounted to cover the second buffer plate 60 and is made of a second support plate 68 having a fourth space portion 70 closed between the second buffer plate 60.

또한, 상기 제 2지지판(68)의 외부에 중첩되며 충격력을 흡수하는 연질의 발포 고무판(36)과; 상기 발포 고무판(36)의 외부에 씌워져 부식을 방지하는 아연도금판(40)으로 순차 중첩된다.In addition, a soft foam rubber plate 36 superimposed on the outside of the second support plate 68 and absorbing impact force; The foamed rubber plate (36) is covered with the zinc plated plate (40) to prevent corrosion.

이를 통해, 본 발명의 일실시예에 따른 고중량 차량의 후방 완충장치는 상대적으로 부피가 크지 않은 면적이지만, 철부(54)와 요부가 구성됨으로 인해 동일 선상에 더 많은 공간부가 형성되어 완충력을 높일 수 있게 하고, 그 완충판와 밀착되는 제 1, 2 지지판(56,68)을 통해서 추가적인 공간부를 더 형성할 수 있게 되며, 완충력을 더욱 높일 수 있게 된다.Through this, the rear shock absorber of the heavy vehicle according to an embodiment of the present invention is a relatively non-bulk area, but more space is formed on the same line due to the constitution of the concave portion 54 and the concave portion to increase the buffering force. It is possible to further form an additional space through the first and second support plates 56 and 68 that are in close contact with the buffer plate, and the buffer force can be further increased.

이때, 바람직하게 상기 제 4공간부(70)의 하면 중앙은 제 1완충판(50)의 상기 철부(54)의 상면 중앙과 동일 선상에 위치되고, 상기 제 4공간부(70)의 하면 면적은 제 1완충판(50)의 상기 철부(54)의 상면 면적보다 작아서 제 4공간부(70)의 하면을 통해 전달되는 충격력은 상기 철부(54)의 상면 일부에만 가해지게 된다.At this time, preferably, the center of the lower surface of the fourth space portion 70 is located on the same line as the center of the upper surface of the iron portion 54 of the first buffer plate 50, and the area of the lower surface of the fourth space portion 70 is The impact force transmitted through the lower surface of the fourth space portion 70 is smaller than the area of the upper surface of the iron portion 54 of the first buffer plate 50, and only the portion of the upper surface of the iron portion 54 is applied.

즉, A의 길이는 B의 길이보다 더 크므로 충격력이 가해져서 제 4공간부(70)가 찌그러지게 되면 상기 제 4공간부(70)의 하면이 상기 제 1완충판(50)의 상기 철부(54)의 상면에 밀착되면서 그 충격력을 전달하게 되는 데, 상기 제 4공간부(70)의 하면 면적은 제 1완충판(50)의 상기 철부(54)의 상면 면적보다 작아서 제 4공간부(70)의 하면을 통해 전달되는 충격력은 상기 철부(54)의 상면 일부에만 가해지게 되고, 그로인해 제 1완충판(50)의 상기 철부(54)의 상면은 일부만 찌그러지고 일부는 지지되는 방식으로 충격력을 분산시키게 된다.That is, since the length of A is greater than the length of B, when an impact force is applied and the fourth space portion 70 is distorted, the lower surface of the fourth space portion 70 is the iron portion of the first buffer plate 50 ( 54, the impact force is transmitted while being in close contact with the upper surface of the fourth space portion, so the lower surface area of the fourth space portion 70 is smaller than the upper surface area of the iron portion 54 of the first buffer plate 50, and thus the fourth space portion 70 ), The impact force transmitted through the lower surface is applied only to a portion of the upper surface of the iron portion 54, so that the upper surface of the iron portion 54 of the first buffer plate 50 is partially distorted and partially supports the impact force. To disperse.

한편, 본 발명의 실시예에 따른 고중량 차량의 후방 완충장치는 단지 상기한 실시예에 한정되는 것이 아니라 그 기술적 요지를 이탈하지 않는 범위내에서 다양한 변경이 가능하다. On the other hand, the rear shock absorber of a heavy vehicle according to an embodiment of the present invention is not limited to the above-described embodiment, and various modifications are possible within a range not departing from the technical gist.

6:후방범퍼, 10:후방 완충장치,
12,18,24,30:제 1,2,3,4완충판, 14,20,26,32:제 1,2,3,4공간부,
36:발포고무판, 40:아연도금판,
42:볼트, 44:너트.6: Rear bumper, 10: Rear shock absorber,
12,18,24,30: 1st, 2nd, 3rd, 4th full version, 14,20, 26th, 3rd: 1st, 2nd, 3rd, 4th space part,
36: foamed rubber plate, 40: zinc plated plate,
42: bolt, 44: nut.

Claims (7)

고중량 차량(2)의 후방범퍼(6) 상에 결합되되,
내부에 중공상태의 공간부를 갖도록 중첩되어 형성되는 다중의 완충판과;
그 완충판의 외부에 중첩되며 충격력을 흡수하는 연질의 발포 고무판(36)과;
상기 발포 고무판(36)의 외부에 씌워져 부식을 방지하는 아연도금판(40)과;
상기 후방범퍼(6)와 완충판, 발포고무판(36) 및 아연도금판(40)을 결합시키는 결합수단으로 이루어지고,
상기 완충판은 상기 후방범퍼(6)의 페이스면에 밀착되고, 철부(54)와 요부가 반복되어 내부에 폐쇄된 제 1공간부(52)가 형성된 제 1완충판(50)과; 상기 제 1완충판(50)을 덮도록 장착되어 상기 제 1완충판(50)과의 사이에 폐쇄된 제 2공간부(58)가 형성된 제 1 지지판(56)과; 상기 제 1지지판(56)을 덮도록 장착되어 철부(66)와 요부가 반복되어 내부에 폐쇄된 제 3공간부(62)가 형성된 제 2완충판(60)과; 상기 제 2완충판(60)을 덮도록 장착되어 상기 제 2완충판(60)과의 사이에 폐쇄된 제 4공간부(70)가 형성된 제 2 지지판(68)과; 상기 제 2지지판(68)의 외부에 중첩되며 충격력을 흡수하는 연질의 발포 고무판(36)과; 상기 발포 고무판(36)의 외부에 씌워져 부식을 방지하는 아연도금판(40)으로 순차 중첩되고;
상기 제 4공간부(70)의 하면 중앙은 제 1완충판(50)의 상기 철부(54)의 상면 중앙과 동일 선상에 위치되고, 상기 제 4공간부(70)의 하면 면적은 제 1완충판(50)의 상기 철부(54)의 상면 면적보다 작아서 제 4공간부(70)의 하면을 통해 전달되는 충격력은 상기 철부(54)의 상면 일부에만 가해지게 된 것을 특징으로 하는 고중량 차량의 후방 완충장치.Is coupled on the rear bumper (6) of the heavy vehicle (2),
A plurality of buffer plates formed to overlap to have a hollow space portion therein;
A soft foam rubber plate (36) superimposed on the outside of the buffer plate and absorbing impact force;
A zinc plated plate 40 which is covered on the outside of the foamed rubber plate 36 to prevent corrosion;
The rear bumper (6) and the buffer plate, the foam rubber plate 36 and the zinc plated plate 40 is made of a coupling means for coupling,
The buffer plate is in close contact with the face surface of the rear bumper 6, the first buffer plate 50 is formed with a first space portion 52 closed therein by repeating the concave portion 54 and the recess; A first support plate 56 mounted to cover the first buffer plate 50 and having a second space portion 58 closed between the first buffer plate 50; A second buffer plate 60 formed to cover the first support plate 56 and having a third space portion 62 closed therein by repeating the convex portion 66 and the concave portion; A second support plate 68 mounted to cover the second buffer plate 60 and having a fourth space portion 70 closed between the second buffer plate 60; A soft foam rubber plate 36 superimposed on the outside of the second support plate 68 and absorbing impact force; The foamed rubber plate 36 is sequentially covered with a galvanized plate 40 which is covered with corrosion to prevent corrosion;
The center of the lower surface of the fourth space portion 70 is located on the same line as the center of the upper surface of the iron portion 54 of the first buffer plate 50, and the area of the lower surface of the fourth space portion 70 is the first buffer plate ( The shock absorbing force transmitted through the lower surface of the fourth space portion 70 is smaller than the upper surface area of the iron portion 54 of 50), so that only a portion of the upper surface of the iron portion 54 is applied. . 제 1항에 있어서,
상기 공간부는 제 1완충판(12)의 중앙에 형성된 제 1공간부(14)와;
상기 제 1공간부(14)를 둘러싸면서, 제 2완충판(18)의 중앙에 형성된 제 2공간부(20)와;
상기 제 2공간부(20)를 둘러싸면서, 제 3완충판(24)의 중앙에 형성된 제 3공간부(26)와;
상기 제 3공간부(26)를 둘러싸면서, 제 4완충판(30)의 중앙에 형성된 제 4공간부(32)로 이루어진 것을 특징으로 하는 고중량 차량의 후방 완충장치.According to claim 1,
The space portion includes a first space portion 14 formed in the center of the first buffer plate 12;
A second space portion 20 formed in the center of the second buffer plate 18 while surrounding the first space portion 14;
A third space portion 26 formed in the center of the third buffer plate 24 while surrounding the second space portion 20;
Surrounding the third space portion 26, the rear shock absorber of a heavy vehicle, characterized in that consisting of a fourth space portion 32 formed in the center of the fourth buffer plate (30). 제 1항에 있어서,
상기 완충판은 그 가장자리에 상호 밀착되어 중첩되는 제 1 내지 제 4 받침부(16, 22, 28, 34)가 구성되고, 상기 발포 고무판(36)의 가장자리에 제 1 내지 제 4 받침부(16, 22, 28, 34)와 밀착되어 중첩되는 제 5 받침부(38)가 형성되며, 상기 아연도금판(40)의 가장자리에 상기 제 5받침부(38)와 밀착되어 중첩되는 제 6받침부(40)가 형성된 것을 특징으로 하는 고중량 차량의 후방 완충장치.According to claim 1,
The buffer plate is composed of first to fourth supporting portions 16, 22, 28, and 34 that are in close contact with each other and overlap the first and fourth supporting portions 16, at the edge of the foamed rubber plate 36. 22, 28, 34), a fifth support portion 38 is formed that overlaps and overlaps, and a sixth support portion that is in close contact with and overlaps the fifth support portion 38 at the edge of the galvanized plate 40 ( 40) rear shock absorber of a heavy vehicle, characterized in that formed. 제 3항에 있어서,
상기 제 1 내지 제 6 받침부(16, 22, 28, 34, 38, 40)는 그 소정부에 볼트(42)가 관통되는 제 1내지 제 6 볼트 관통공(16a, 22a, 28a, 34a, 38a, 40a)이 형성된 것을 특징으로 하는 고중량 차량의 후방 완충장치.According to claim 3,
The first to sixth support portions (16, 22, 28, 34, 38, 40) are first to sixth bolt through holes (16a, 22a, 28a, 34a) through which a bolt (42) passes through a predetermined portion thereof. 38a, 40a), characterized in that the rear shock absorber of a heavy vehicle. 삭제delete 삭제delete 제 1항에 있어서,
상기 결합수단은 용접된 것을 특징으로 하는 고중량 차량의 후방 완충장치.According to claim 1,
The coupling means is a rear shock absorber of a heavy vehicle, characterized in that welded.
KR1020190019809A 2019-02-20 2019-02-20 A device for absorbing shock of a rear end collision for a High Weight vehicle KR102104742B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1111239A (en) * 1997-06-24 1999-01-19 Toyota Motor Corp Energy absorbing structure
KR19990011006U (en) * 1997-08-30 1999-03-25 정몽규 Multistage collapsible shock absorbing beam of car
JP2013123927A (en) * 2011-12-13 2013-06-24 Toyoda Iron Works Co Ltd Bumper beam for vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1111239A (en) * 1997-06-24 1999-01-19 Toyota Motor Corp Energy absorbing structure
KR19990011006U (en) * 1997-08-30 1999-03-25 정몽규 Multistage collapsible shock absorbing beam of car
JP2013123927A (en) * 2011-12-13 2013-06-24 Toyoda Iron Works Co Ltd Bumper beam for vehicle

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