KR101085888B1 - Shock absorbing device of guard rail - Google Patents
Shock absorbing device of guard rail Download PDFInfo
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- KR101085888B1 KR101085888B1 KR1020080135935A KR20080135935A KR101085888B1 KR 101085888 B1 KR101085888 B1 KR 101085888B1 KR 1020080135935 A KR1020080135935 A KR 1020080135935A KR 20080135935 A KR20080135935 A KR 20080135935A KR 101085888 B1 KR101085888 B1 KR 101085888B1
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- Prior art keywords
- guard rail
- shock absorbing
- plastic deformation
- elastic deformation
- deformation member
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- 230000035939 shock Effects 0.000 title claims abstract description 27
- 230000005489 elastic deformation Effects 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract description 2
- 230000000116 mitigating Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010001497 Agitation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000002238 attenuated Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
- E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means
Abstract
본 발명은 도로 가드레일용으로 설치되는 완충부재를 소성변형부재와 탄성변형부재로 복합 구성하므로서 차량충돌에 의한 충격에너지의 흡수효과를 배가시키는 한편, 이차적인 반발충격을 억제하므로서 가드레일과 차량은 물론 탑승자의 신체적 손상을 최소화시키기 위한 가드레일의 충격흡수·감쇄 구조에 관한 것이다.According to the present invention, the shock absorbing member installed for the road guardrail is composed of a plastic deformation member and an elastic deformation member, thereby doubling the absorption effect of impact energy due to the vehicle collision, while suppressing the secondary repulsive impact. Of course, it relates to the shock absorbing and damping structure of the guardrail to minimize the physical damage of the occupant.
가드레일, 탄성변형, 소성변형, 충격에너지, 완충부재 Guard rail, elastic deformation, plastic deformation, impact energy, cushioning member
Description
본 발명은 도로의 노변이나 중앙분리대 또는 교량의 난간 등에 설치되어 주행하는 차량의 이탈이나 전복을 방지하기 위한 가드레일에 관련된 것으로, 보다 상세하게는 차량이 가드레일에 충돌시 그 충격에너지를 흡수·완화하는 충격감쇄 구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a guard rail for preventing the vehicle from falling off or overturning when installed on a roadside, a median or a railing of a bridge. More specifically, the vehicle absorbs the impact energy when the vehicle collides with the guardrail. The present invention relates to a shock absorbing structure for mitigating.
일반적으로 도로용 가드레일은 도 1에 도시된 바와 같이 철판을 절곡 형성한 가드레일판(10)과, 철재 파이프 또는 콘크리트재의 지주(20), 그리고 상기 가드레일판(10)과 지주(20)를 연결 고정하는 완충부재(30)로 이루어져 있다.In general, the road guardrail is a guardrail plate 10 formed by bending the iron plate, as shown in Figure 1, the steel pipe or concrete support 20, and the guard rail plate 10 and the support 20 Consists of a buffer member 30 for fixing the connection.
상기한 가드레일판(10)은 사전 설정된 충격에너지를 견딜 수 있도록 일정 강도로 설계되는 강성부재이며, 완충부재(30)는 상기 가드레일판(10)의 강도와 같거나 그 보다 다소 낮은 강도로 설정되므로서 상기 가드레일판(10)이 훼손되기 전에 먼저 변형훼손되도록 구성되는 부재이고, 지주(20)는 전술한 가드레일판(10)의 설계강도보다도 큰 강도로 설정되는 강성부재이다.The guardrail plate 10 is a rigid member designed to have a predetermined strength to withstand a predetermined impact energy, and the shock absorbing member 30 has a strength lower than or equal to that of the guardrail plate 10. Since the guard rail plate 10 is set, the member is configured to be deformed first before being damaged, and the support 20 is a rigid member that is set to have a strength greater than the design strength of the guard rail plate 10 described above.
이와 같은 가드레일에 차량이 충돌하게 되면 일차적으로 가드레일판(10)이 충격을 받게 되고, 그 충격이 2차적으로 완충부재(30)를 거쳐 지주(20)로 최종 전달된다.When the vehicle collides with such a guard rail, the guard rail plate 10 is first impacted, and the impact is secondly transmitted to the support 20 through the shock absorbing member 30.
따라서 차량 충돌에 의한 충격에너지가 경미한 경우에는 일차적으로 가드레일판(10)의 강성과 완충부재(30)의 변형에 의해 흡수·완화되고, 보다 강한 경우에는 가드레일판(10)과 완충부재(30)가 함께 변형하거나 파손되므로서 감쇄되며, 충격에너지가 아주 강한 경우에는 지주(20) 자체가 변형되거나 쓰러지므로서 최종 흡수되고, 사고차량은 가드레일의 경계를 넘어 이탈하는 상황으로까지 전개된다.Therefore, when the impact energy due to the collision of the vehicle is slight, it is primarily absorbed and relaxed by the rigidity of the guard rail plate 10 and the deformation of the shock absorbing member 30, and when it is stronger, the guard rail plate 10 and the shock absorbing member ( 30) are attenuated by deforming or breaking together, and when the impact energy is very strong, the prop 20 is finally absorbed by deforming or collapsing, and the accident vehicle develops to a situation where it breaks beyond the boundary of the guard rail. .
결국, 충격에너지에 대한 흡수 또는 완화방식은 가드레일의 전체적인 강성(剛性)을 높여 대처하거나, 가드레일판 또는 완충부재의 구조와 관련시켜 여러형태로 충격을 흡수·완화하는 방식으로 대처할 수 밖에 없다.As a result, the absorbing or mitigating method for impact energy has to be coped with by increasing the overall rigidity of the guard rail or by absorbing and mitigating the shock in various forms in relation to the structure of the guard rail plate or the buffer member. .
먼저, 가드레일의 강성을 전체적으로 높여 대처하는 방식은 차량의 이탈이나 시설의 훼손 등은 상단수준 방지할 수 있으나, 충돌사고시 차량의 손상은 물론 탑승자의 신체적 위해가 심각해질 위험이 있을 뿐만 아니라, 시설비도 과도하게 높아지는 문제가 따르게 된다.First of all, the approach to increase the stiffness of the guard rail as a whole can prevent the departure of the vehicle or the damage of the facility to the upper level. Excessively high problems will follow.
따라서 선행기술들은 대부분 두번째 방식 즉, 가드레일판 또는 완충부재의 개선구조에 의하여 해결하고 있으며, 그 중에서도 완충부재의 개선에 관련된 기술들이 거의 대부분을 차지하고 있다.Therefore, the prior arts are mostly solved by the second method, that is, the improvement structure of the guard rail plate or the cushioning member, and among them, the technologies related to the improvement of the cushioning member occupy almost the majority.
그리고 이러한 선행기술들은 크게 탄성변형과 소성변형에 의해 충격을 흡수하거나 완화하는 메카니즘 또는 이들의 조합구조로 되어 있다.And these prior art is largely a mechanism or a combination structure of the shock absorbing or mitigated by elastic deformation and plastic deformation.
도 2로 도시되어 있는 국내실용신안 등록번호 제20-0229387호(등록일자 2001.04.21) "도로용 가드레일"은 완충부재(30)가 탄성변형에 의해 충격에너지를 흡수·완화하는 방식의 대표적인 사례인 바, 이러한 탄성변형 방식은 일단 차량 충돌에 의한 충격에너지를 흡수·완화하기는 하나 상기 완충부재(30)가 원래의 형상으로 돌아가려는 이차적인 복원력에 의해 재차 반발충격이 차량이나 운전자에게 전달되어 또 다른 위해의 요인이 되는 문제점이 있다.Domestic utility model registration No. 20-0229387 (Registration date 2001.04.21) shown in Figure 2 "road guard rail" is a representative of the way that the shock absorbing member 30 absorbs and mitigates the impact energy by elastic deformation. As an example, the elastic deformation method absorbs and alleviates the impact energy caused by the collision of the vehicle, but the repulsive shock is transmitted to the vehicle or the driver again by the secondary restoring force of the shock absorbing member 30 to return to its original shape. There is a problem that becomes another cause of harm.
도 3에 도시되어 있는 국내 특허공보 공개번호 제10-2004-0086115호(공개일자 2004.10.08) "가드레일의 충격흡수 구조체"는 소성변형에 의해 충격에너지를 흡수한 이후의 상태를 도시한 사례인 바, 이 경우에는 완충부재(30)가 소성변형되므로 충격에너지를 효과적으로 흡수하기는 하나 상대적으로 약한 충격에도 완충부재(30)가 복귀 불능상태로 훼손되는 문제점이 있다.Domestic Patent Publication No. 10-2004-0086115 (published on 2004.10.08) shown in Figure 3 "shock absorbing structure of the guard rail" is a case showing the state after absorbing the impact energy by plastic deformation In this case, since the shock absorbing member 30 is plastically deformed, there is a problem in that the shock absorbing energy is effectively absorbed, but the shock absorbing member 30 is damaged in a non-returnable state even in a relatively low impact.
도 4에 도시되어 있는 국내 특허공보 공개번호 제10-2008-0102017호(공개일자 2008.11.24) "이중 상쇄구조의 도로용 충격흡수대"는 소성변형과 탄성변형을 조합한 방식의 사례인 바, 이 역시 소성변형을 초과하는 강한 충격에너지가 수반되는 차량충돌의 경우에는 결국 판스프링(2)에 의한 이차적인 탄성 복원력이 작용하게 되므로, 이 역시 여전히 또 다른 위해요인이 되는 단점이 있다.Korean Patent Publication No. 10-2008-0102017 (published date 2008.11.24) shown in Figure 4 "double-off structure road shock absorber" is an example of a combination of plastic deformation and elastic deformation, In the case of a vehicle crash accompanied with a strong impact energy exceeding plastic deformation, the secondary elastic restoring force by the leaf spring 2 acts, which is still another risk factor.
기타 고무나 연질합성수지와 같은 탄성재들도 간혹 충격흡수재로 이용되고 있으나, 이들 탄성재들은 시간이 지남에 따라 비바람 등에 노후·변질되어 탄성력 자체가 훼손되는 문제 때문에 실효성이 없다는 단점이 있다.Other elastic materials such as rubber or soft synthetic resins are also sometimes used as shock absorbers, but these elastic materials have a disadvantage in that they are not effective due to a problem that the elastic force itself is damaged due to aging and deterioration over time.
본 발명은 상기한 바와 같은 종래기술의 문제점에 착안하여 차량충돌에 의한 강한 충격에너지를 보다 효과적으로 흡수·감쇄하므로서, 가드레일이나 차량의 파손은 물론 탑승자에 가해지는 위해요인을 최소화할 수 있는 도로 가드레일의 충격흡수 감쇄구조를 제안함에 그 목적이 있다.The present invention focuses on the problems of the prior art as described above, and more effectively absorbs and attenuates strong impact energy caused by a vehicle crash, thereby minimizing hazards to the occupants as well as damage to the guardrail or the vehicle. The purpose is to propose a shock absorbing attenuation structure of the rail.
전술한 바와 같은 목적을 달성하기 위한 본 발명은 다음과 같은 기술적 해결수단으로 이루어짐을 특징으로 한다.The present invention for achieving the object as described above is characterized by consisting of the following technical solutions.
즉, 본 발명은 완충부재를 소성변형부재와 탄성변형부재로 조합 구성하되, 외곽구조인 소성변형부재 내부에 탄성변형부재를 설치함으로써, 상기 탄성변형부재의 이차적인 탄성반발을 변형된 소성변형부재 내에서 억제시킴을 기본적인 특징으로 한다.That is, in the present invention, the cushioning member is composed of a plastic deformation member and an elastic deformation member, but by installing an elastic deformation member inside the plastic deformation member having an outer structure, the plastic deformation member deforms the secondary elastic repulsion of the elastic deformation member. It is a basic feature to suppress in the inside.
그리고 본 발명의 상기 탄성변형부재는 코일스프링 또는 판스프링을 선택적 혹은 복합적 구성할 수 있음을 이차적 특징으로 한다.In addition, the elastic deformation member of the present invention has a secondary feature that the coil spring or the leaf spring can be configured selectively or in combination.
본 발명은 전술한 바와 같이 소성변형부재의 변형공간범위 내에 탄성변형부재가 위치하여 함께 거동되므로서, 충격에너지에 대하여 소성변형부재와 탄성변형부재가 함께 순차적으로 변형하면서 충격을 흡수하므로 충격에너지의 흡수효과가 배가되어 상당한 강도의 충돌사고에도 구조물이 훼손되거나 파손되지 않게 된다.According to the present invention, since the elastic deformation member is positioned and behave together in the deformation space of the plastic deformation member as described above, the plastic deformation member and the elastic deformation member absorb the impact while sequentially deforming the impact energy. The absorption effect is doubled so that the structure will not be damaged or damaged in the event of a severe collision.
그리고 일정 강도를 초과한 충격에너지가 가해지는 경우에는 탄성변형부재가 변형된 소성변형부재 내에 갇히거나, 그 탄성 복원력이 현저하게 억제 되므로 이차적인 탄성충격이 발생하지 않아 차량이나 탑승자에 대한 위해요인이 최소화 되는 효과가 있다.When the impact energy exceeding a certain strength is applied, the elastic deformation member is trapped in the deformed plastic deformation member, or the elastic restoring force is significantly suppressed, so secondary elastic shock does not occur, thereby causing a hazard to the vehicle or the occupant. It has the effect of being minimized.
또한, 본 발명은 탄성변형부재가 소성변형부재 내에 수용될 뿐만 아니라, 수용되는 탄성변형부재도 코일스프링과 판스프링 등으로 복합 또는 중복 구성할 수 있어 시설구조물의 설치공간이나 면적을 효과적으로 활용할 수 있는 이점이 기대된다.In addition, the present invention is not only the elastic deformation member is accommodated in the plastic deformation member, but also the elastic deformation member can be combined or overlapped with the coil spring and the leaf spring, etc. can effectively utilize the installation space or area of the facility structure This is expected.
본 발명을 가드레일의 완충부재에 적용한 사례에 대하여 첨부된 도면을 참조하여 구체적으로 설명하면 다음과 같다.If the present invention is described in detail with reference to the accompanying drawings for the case applied to the cushioning member of the guardrail as follows.
도 5에 예시된 완충부재(30)는 사다리꼴 모양의 소성변형부재(31) 내에 탄성변형부재로서 코일스프링(32)을 내설한 경우로, 가드레일판(10)과 지주(20) 사이의 간격이 상대적으로 큰 경우에 적용하기 좋다.The buffer member 30 illustrated in FIG. 5 is a case in which the coil spring 32 is embedded in the trapezoidal plastic deformation member 31 as an elastic deformation member, and the gap between the guardrail plate 10 and the support 20. It is good to apply in this relatively large case.
도 6에는 직사각형 모양의 소성변형부재(31) 내에 탄성변형부재로서 판스프링(33)을 내설한 경우로, 이 경우에는 가드레일판(10)과 지주(20)의 간격이 상대적으로 좁은 구조에 적용하기 알맞은 형태이다.FIG. 6 illustrates a case in which the leaf spring 33 is installed as an elastic deformation member in the plastic deformation member 31 having a rectangular shape. In this case, the gap between the guard rail plate 10 and the support 20 is relatively narrow. It is a suitable form.
도 7은 소성변형부재(31) 내에 탄성변형부재로 코일스프링(32)과 판스프링(33)을 복합시켜 내설한 구조로서, 탄성변형부재의 탄발력을 현저히 강화시키는 경우에 적용할 수 있다.FIG. 7 is a structure in which the coil spring 32 and the leaf spring 33 are integrated with the elastic deformation member 31 in the plastic deformation member 31, and can be applied to reinforce the elastic force of the elastic deformation member significantly.
이상에 예시된 소성변형부재(31)는 어느 경우든 폐쇄된 형상으로 되어 있고, 가드레일판(10)과 접면하는 변의 양단부에 프렌지(34)가 연장 형성되어 있다.In any case, the plastic deformation member 31 illustrated above has a closed shape, and flanges 34 are formed at both ends of the side in contact with the guardrail plate 10.
상기 소성변형부재(31)는 상기 프렌지(34) 부위에서 가드레일판(10)과 리베팅이나 볼트체결방식에 의해 일체로 연결·고착되어 있으며, 다시 지주(20)와 가드레일판(10)은 소성변형부재(31)와 탄성변형부재(32)(33)들을 관통하여 볼트(35)에 의해 함께 체결되어 있다.The plastic deformation member 31 is integrally connected and fixed to the guardrail plate 10 at the portion of the flange 34 by a riveting or bolting method, and again the support 20 and the guardrail plate 10. Silver penetrates the plastic deformation member 31 and the elastic deformation members 32 and 33 together by a bolt 35.
이상과 같이 구성된 본 발명은 차량충돌시 가드레일판(10)에 가해지는 충격에너지가 완충부재(30)에 외력으로 작용하여 최종적으로 지주(20)에 전달되는 바, 상기 외력은 먼저 완충부재(30)의 외곽인 소성변형부재(31)에 가해지게 된다.According to the present invention configured as described above, the impact energy applied to the guardrail plate 10 during a vehicle crash acts as an external force on the shock absorbing member 30 and finally is transmitted to the support 20, and the external force is first absorbed by the shock absorbing member ( It is applied to the plastic deformation member 31, which is the outer side of the 30.
따라서 일정한 강도 이상의 외력이 작용하면 소성변형부재(31)가 찌그러지는 등의 변형이 일어나야 되나, 이때 그 내부에서 탄성변형부재(32)(33)가 받쳐주면서 탄성적으로 충격에너지를 흡수하는 결과가 되어 소성변형부재(31)는 전술한 가드레일판(10)의 설정강도 범위 내에서는 찌그러지는 등의 훼손이 발생하지 않게 된다.Therefore, when an external force of a certain strength or more acts, deformation such as plastic deformation member 31 is to be crushed, but at this time, the elastic deformation members 32 and 33 support the elastically absorbing impact energy. Thus, the plastic deformation member 31 does not cause damage such as crushing within the set strength range of the guardrail plate 10 described above.
그리고 상기 설정강도 보다 훨씬 큰 외력이 작용하게 되면, 소성변형부재(31)는 탄성변형부재(32)(33)와 함께 원상회복이 안되는 정도의 소성변형 즉, 찌그러지므로서 한번 더 충격에너지를 흡수할 뿐만 아니라, 그 과정에서 탄성변형부재(32)(33)는 계속 탄성변형하면서 충격을 흡수하므로 충격감쇄 능력이 배가된다.When an external force much greater than the set strength is applied, the plastic deformation member 31 absorbs the impact energy once again as it is not plastically deformed, that is, crushed together with the elastic deformation members 32 and 33. In addition, in the process, the elastic deformation members 32 and 33 absorb shock while continuously elastically deforming, thereby doubling the impact reduction ability.
이와 같은 과정을 통해 소성변형부재(31)가 완전히 찌그러들면, 그 안에 갇혀 있는 탄성변형부재(32)(33)도 탄성 복원력을 잃거나 억제되므로 결국, 탄성 복원력에 의한 이차충격이 충돌차량이나 탑승자에게 전달되지 않게 된다.When the plastic deformation member 31 is completely crushed through such a process, the elastic deformation members 32 and 33 trapped therein also lose or restrain the elastic restoring force, and thus, the secondary shock due to the elastic restoring force is impaired by the crash vehicle or the occupant. It will not be delivered to.
따라서 본 발명은 차량 충돌사고에 의한 충격에너지를 보다 효과적으로 흡수·감쇄시킬 뿐만 아니라 차량파손이나 탑승자의 신체적 위해요인을 최소화 시킬 수 있게 되는 것이다.Therefore, the present invention can more effectively absorb and attenuate the impact energy due to the vehicle crash, and minimize the physical damage of the vehicle or the occupant.
이상의 사례는 본 발명을 가드레일의 완충부재에 적용한 예시지만 동일한 기술목적이나 기능을 갖는 자동차 범퍼나 선박의 접안시설 즉, 방현재 등의 유사한 기술분야에도 적용될 수 있음은 물론이다.The above example is an example in which the present invention is applied to the cushioning member of the guardrail, but it can be applied to a similar technical field such as an automobile bumper or a ship's eyepiece, that is, a fender having the same technical purpose or function.
도 1 a, b는 종래 가드레일의 구조도1 a and b is a structural diagram of a conventional guard rail
도 2는 종래 탄성변형에 의해 충격에너지를 흡수하는 가드레일의 평단면도.Figure 2 is a plan sectional view of the guardrail absorbing the impact energy by the conventional elastic deformation.
도 3은 종래 소성변형에 의해 충격에너지를 흡수하는 가드레일의 충격 후의 상태를 나타낸 평단면도.Figure 3 is a plan sectional view showing a state after the impact of the guard rail absorbing the impact energy by the plastic deformation.
도 4는 종래 탄성변형과 소성변형을 조합한 가드레일의 측단면도.Figure 4 is a side cross-sectional view of the guard rail combining the conventional elastic deformation and plastic deformation.
도 5는 본 발명 가드레일의 충격감쇄 구조로 소성변형부재 내에 탄성변형부재로 코일스프링이 내설된 상태의 평단면도.Figure 5 is a cross-sectional plan view of the coil spring is built into the elastic deformation member in the plastic deformation member in the impact reduction structure of the guard rail of the present invention.
도 6은 본 발명 가드레일의 충격감쇄 구조로 소성변형부재 내에 탄성변형부재로 판스프링이 내설된 상태의 평단면도.Figure 6 is a cross-sectional plan view of a state in which the leaf spring is built into the elastic deformation member in the plastic deformation member in the impact reduction structure of the guard rail of the present invention.
도 7은 본 발명 가드레일의 충격감쇄 구조로 소성변형부재 내에 탄성변형부재로 코일스프링과 판스프링이 복합 내설된 상태의 평단면도.7 is a cross-sectional plan view of a coil spring and a leaf spring in a state in which the elastic deformation member is elastically deformed in the plastic deformation member as a shock attenuation structure of the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
10 : 가드레일판 20 : 지주10: guardrail plate 20: prop
30 : 완충부재 31 : 소성변형부재30: buffer member 31: plastic deformation member
32 : 코일스프링 33 : 판스프링32: coil spring 33: leaf spring
34 : 프렌지34: Frenzy
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080135935A KR101085888B1 (en) | 2008-12-29 | 2008-12-29 | Shock absorbing device of guard rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080135935A KR101085888B1 (en) | 2008-12-29 | 2008-12-29 | Shock absorbing device of guard rail |
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| Publication Number | Publication Date |
|---|---|
| KR20100077866A KR20100077866A (en) | 2010-07-08 |
| KR101085888B1 true KR101085888B1 (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020080135935A KR101085888B1 (en) | 2008-12-29 | 2008-12-29 | Shock absorbing device of guard rail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101621271B1 (en) * | 2015-07-01 | 2016-06-01 | 유한회사 원진알미늄 | Vehicle Designs of protections |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101397382B1 (en) * | 2013-11-13 | 2014-05-20 | (주) 금성산업 | A safety with multiple absorbing-impact |
| DE102014107874A1 (en) | 2014-06-04 | 2015-12-17 | SGGT Straßenausstattungen GmbH | Vehicle restraint system |
| KR101993766B1 (en) * | 2018-09-14 | 2019-07-01 | (주)태평양 | Safety barrier for shock absorption enhanced shock absorbing function |
| KR102238512B1 (en) * | 2019-06-28 | 2021-04-09 | (주)성산정공 | Guardrail coupling structure with improved durability |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10292330A (en) | 1997-04-11 | 1998-11-04 | Kazumitsu Kanamaru | Shock-absorbing device against vehicle |
| KR100832789B1 (en) | 2007-05-22 | 2008-05-28 | 김원주 | Impaction suction bar for road |
| KR100832790B1 (en) | 2007-05-23 | 2008-05-28 | 김원주 | Impaction suction bar for road |
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2008
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10292330A (en) | 1997-04-11 | 1998-11-04 | Kazumitsu Kanamaru | Shock-absorbing device against vehicle |
| KR100832789B1 (en) | 2007-05-22 | 2008-05-28 | 김원주 | Impaction suction bar for road |
| KR100832790B1 (en) | 2007-05-23 | 2008-05-28 | 김원주 | Impaction suction bar for road |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101621271B1 (en) * | 2015-07-01 | 2016-06-01 | 유한회사 원진알미늄 | Vehicle Designs of protections |
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| KR20100077866A (en) | 2010-07-08 |
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