WO2018110877A1 - Glissière de sécurité en plastique - Google Patents

Glissière de sécurité en plastique Download PDF

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Publication number
WO2018110877A1
WO2018110877A1 PCT/KR2017/013971 KR2017013971W WO2018110877A1 WO 2018110877 A1 WO2018110877 A1 WO 2018110877A1 KR 2017013971 W KR2017013971 W KR 2017013971W WO 2018110877 A1 WO2018110877 A1 WO 2018110877A1
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WO
WIPO (PCT)
Prior art keywords
rib
ribs
guardrail
plastic
fitting groove
Prior art date
Application number
PCT/KR2017/013971
Other languages
English (en)
Korean (ko)
Inventor
유준령
Original Assignee
(주)카리스가드레일
유준령
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)카리스가드레일, 유준령 filed Critical (주)카리스가드레일
Priority to CN201780006979.5A priority Critical patent/CN108474186B/zh
Publication of WO2018110877A1 publication Critical patent/WO2018110877A1/fr

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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
    • E01F15/0453—Rails of materials other than metal or concrete, e.g. wood, plastics; Rails of different materials, e.g. rubber-faced metal profiles, concrete-filled steel tubes
    • 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
    • E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/143—Protecting devices located at the ends of barriers

Definitions

  • the present invention mainly relates to protective guardrails erected on roadsides for vehicle traffic, and more particularly to plastic molded guardrails designed to effectively respond to external impacts.
  • guardrails are road facilities installed along roadsides for the purpose of indicating road boundaries and preventing vehicle departure.
  • Such a guard rail needs to have a high impact strength to prevent the vehicle from falling off when the vehicle collides, while simultaneously requiring a property that can absorb the shock applied to the vehicle and the guard rail. This demand is particularly concerned with the protection of drivers and occupants.
  • guardrails are metal plates that are press-formed in a continuously curved form and are continuously placed and fixed on rail posts properly disposed along the roadside.
  • this metal guard rail is inconvenient to handle and dangerous, and thus has a problem of poor workability.
  • the metal guard rail not only has a buffering ability to absorb shock but also has problems such as corrosion.
  • there have been proposals such as making the material plastic or adding a cushioning element thereto.
  • Utility Model Registration Nos. 180108, 331636, and the like disclose a guardrail which is designed to mitigate an impact in a vehicle crash by attaching a polymer shock absorber to the surface of a metal plate.
  • a guardrail which is designed to mitigate an impact in a vehicle crash by attaching a polymer shock absorber to the surface of a metal plate.
  • the production and attachment of the guardrail takes a considerable cost and time, there is a problem that the productivity is significantly reduced.
  • Utility Model Registration No. 308889 discloses a guardrail molded only as a synthetic resin or FRP, and there are various proposals in which a fastening structure or a reflective structure is added to a guardrail having a similar material. There is no problem with regard to the strength, stiffness or cushioning of the. It is proposed to form an air layer inside the guardrail.
  • Registered Patent Nos. 466411, 897583, 1313133, and Published Patent Nos. 2010-109080 use synthetic resins or resins, but form an air layer therein, and each layer is approximately one-shaped, V-shaped, or W.
  • Plastic guardrails are disclosed that are constructed by connecting linear ribs or honeycomb ribs. This structure will have a cushioning effect compared to the simple plate guardrails described above.
  • the guardrail inner structure including the air layer and the ribs is limited in shape and does not actively act on external impact.
  • each layer is easily destroyed in turn, and in the process, the internal structure and shape have no active action for cushioning and mitigation.
  • the air layer and ribs provide the cushioning properties of the guardrail, the effect is only marginal.
  • the present invention has been proposed to solve the problems of the guardrail according to the prior art described above. It is an object of the present invention to provide a guardrail that can more effectively mitigate an impact through an active action for its absorption against an external impact. Another object of the present invention is to provide a guardrail configured so that fragmentation of the guardrail due to the impact does not occur as much as possible.
  • the guardrail of the present invention is based on a plastic guardrail formed from synthetic resin and fixed transversely to the vertical post.
  • An outer structure comprising a surface layer providing a contact surface against external impact and a plurality of first ribs protruding inwardly from the surface layer;
  • a backing layer providing a fixing surface for the post, a plurality of second ribs protruding outwardly from the backing layer, and a fitting groove formed to closely insert the first rib between the adjacent second ribs.
  • An intermediate layer that alternately connects the ends of the first and second ribs so that the ends of the first rib are located at the inlet of the fitting groove when the outer structure and the internal structure are disposed to face each other;
  • the intermediate layer is broken and the first rib is forcibly inserted into the fitting groove, and the impact is alleviated by the frictional resistance continuously provided during the insertion process.
  • the guardrail of the present invention is:
  • the outer surface of the first rib and the inner wall of the fitting groove have corresponding friction protrusion-groove structures.
  • a PC resin material of a thermoplastic engineering plastic resin is applied as the material of the outer structure 20, and a material selected from the engineering plastic resin and high-density polyethylene (HDPE) as the material of the inner structure 30.
  • Plastic resin material obtained by mixing the mixture in a weight ratio of 30 to 50:70 to 50 is applied.
  • the foam is a conventional polyethylene foam.
  • the guardrail of the present invention when an impact is applied to the surface layer of the outer structure, the intermediate layer is broken and the first rib is forcibly inserted into the fitting groove of the inner structure.
  • the frictional resistance is continuously provided during the insertion process, and the internal and external structures are pressed together and are integrally combined. Therefore, the impact that is applied can be absolutely alleviated, and the likelihood that the guardrail fragments will occur after the impact is significantly reduced.
  • the foam elastically absorbs the impact corresponding to the front end of the first rib, and the friction protrusion-groove structure provides a stronger frictional resistance between the first rib and the fitting groove in succession. Therefore, there is an effect that can double the features that can mitigate the impact and reduce the occurrence of debris.
  • FIG. 1 is a perspective view of a guardrail according to the present invention.
  • FIG. 2 is a state diagram of use of the guardrail according to the present invention.
  • FIG. 3 is an enlarged sectional view taken along line 'A' of FIG.
  • FIG. 4 is a cross-sectional view for explaining the operation of the guardrail according to the present invention.
  • FIG. 5 is an enlarged view of a portion 'B' of FIG. 2;
  • guardrail of the present invention described or not described above (hereinafter guardrail)
  • the guardrail 10 is a plate extending longitudinally in the transverse direction with a longitudinal-waveform waveform, at the end of another guardrail 10 of the same structure and shape Is connected.
  • a fastening hole 11 penetrating the ends of the opposite side guard rails 10, bolts 12 penetrating the fastening holes 11, respectively, two bolts on the back of the guard rail 10
  • reference numerals 14 and 15 are fixing holes and fixing bolts formed for installing the guard rail 10 according to the present invention on the roadside rail post P.
  • the plate shape and connection structure of the guardrail 10 described above are not special in the present invention, and the present invention is not limited thereto.
  • a separate bracket structure may be used for connecting the guard rails 10 and fixing the posts P.
  • the guard rail 10 of the present invention is based on a plastic guard rail formed of a synthetic resin and fixed in a transverse direction to a vertical post P, and is designed in multiple structures. Is an intermediate layer disposed between the front side outer structure 20 and the rear post P side inner structure 30 and the outer structure 20 and the inner structure 30 to connect both structures 20 and 30 ( 40).
  • the guardrail 10 shown as described above is formed in a waveform of an overall shape, but may be formed in a curved or planar shape.
  • the outer structure 20 includes a surface layer 21 that provides a contact surface to the outside and a plurality of first ribs 22 protruding inward from the surface layer 21.
  • the internal structure 30 includes a rear layer 31 which provides a fixing surface for the post P, and a plurality of second ribs 32 protruding outward from the rear layer 31. Is done.
  • the internal structure 30 includes a fitting groove 33 formed to allow the first rib 22 to be tightly inserted between the second ribs 32 adjacent to each other.
  • the outer structure 20 may likewise have a fitting groove 23 formed so that the second ribs 32 may be tightly inserted between the first ribs 22 adjacent to each other. It is designed to include.
  • the first rib 22 Since the outer diameter of the first rib 22 and the inner diameter of the fitting groove 33 are about the same level by the term 'close contact', the position and size of the first rib 22 are precisely determined. If not set, the insertion may be difficult or the first rib 22 or the second rib 32 may be broken. Therefore, in order to guide the proper insertion into the fitting groove 33, the first rib 22 is formed in a pointed shape or a round shape.
  • the first rib 22 and the second rib 32 is formed radially from the center of the waveform in the longitudinal-direction waveform section (D1, D2) of the guard rail (10).
  • This form allows the impact transmission direction and the corresponding shock absorbing means 22, 33, 34 to lie in a straight line 'C-C' against the impact at any point on the surface of the outer structure 20, It guides the proper insertion of the fitting groove 33 of the first rib 22 as well as functions to improve the directionality and efficiency of the buffer. For example, when an impact is applied to the peak portion of the waveform, the crest is gradually lowered, and accordingly, proper insertion into the fitting groove 33 of the first rib 22 may be naturally performed.
  • the intermediate layer 40 is a means for maintaining the overall integral shape of the guard rail 10, and the first rib 22 and the second rib (between the outer structure 20 and the inner structure 30 facing each other ( And connecting means for integrally forming both structures 20-30 by connecting the ends of the ends 32.
  • the intermediate layer 40 may include a first portion such that an end portion of the first rib 22 is positioned at an inlet of the fitting groove 33 when the outer structure 20 and the inner structure 30 are disposed to face each other. End portions of the ribs 22 and the second ribs 32 are connected to each other by a shift.
  • the intermediate layer 40 is shown as one layer in which the ends of the first ribs 22 and the second ribs 32 are in contact with the upper and lower surfaces, respectively. It can be understood as a line extending along the ends of the first ribs 22 and the second ribs 32 which are contact-connected between the edges of the ends.
  • the intermediate layer 40 here forms one longitudinal-waveform line by successive 'V' or rounds corresponding to the end shape of each rib 22, 32.
  • the guard rail 10 is formed of a thermoplastic resin material, preferably, the outer structure 20 and the intermediate layer 40 is applied with a high strength material to enhance the impact resistance
  • the internal structure 30 is integrally formed by applying a material having a lower strength than the external structure 20 in consideration of internal buffering property and water solubility of the first rib 22.
  • EP.VC engineering plastic resin
  • a material of the internal structure 30 may be applied to a general-purpose plastic resin selected from PE, PP, PVC, PS, ABS, AS (acrylonitrile styrene copolymer), MBS (methacryl resin).
  • a PC (Polycarbonate) resin having the highest impact strength is used among the thermoplastic resin and the engineering resin as the material of the external structure 20, and the above-described E-P.V.C.
  • the resin material obtained by mixing the material selected from the resin and HDPE (High-Density Polyethylene) is applied.
  • the resin is not to exceed the weight of the HDPE resin, preferably obtained by mixing in a weight ratio of 30 to 50:70 to 50.
  • the external impact R on the guard rail 10 impacts the surface layer 21 of the external structure 20, the external structure 20 and the internal structure 30 are affected.
  • the first layer 22 is forcibly inserted into the fitting groove 33 while the intermediate layer 40 for connecting the first layer 22 is broken, and the first rib 22 and the fitting groove 33 are continuously provided during the insertion process.
  • the shock is alleviated by the frictional resistance between the shells.
  • the guardrail of the present invention preferably further includes a shock absorbing synthetic resin foam 34 in the form of a foam filled in the fitting groove 33.
  • the foam 34 corresponds to the end of the first rib 22 in front to elastically absorb the impact.
  • the foam 34 is a conventional polyethylene molded foam.
  • the filling foam 24 serves to elastically support the adjacent second ribs 32 on the left and right sides in addition to the front corresponding to the impact.
  • the first rib 22 includes a plurality of friction protrusions 24 formed on an outer surface thereof, and the fitting groove 33 is formed on an inner wall to correspond to the friction protrusions 24. 35).
  • the friction protrusion-groove 24,35 corresponding structure provides a stronger frictional resistance between the first rib 22 and the fitting groove 33 in succession and at the same time suppresses the force to be shot in the opposite direction, while the foam ( 34) is firmly disposed on the inner wall of the fitting groove (33).
  • the impact resistance of the guard rail 10 is ensured by the outer structure 20 of the material described above.
  • the cushioning properties of the guard rail 10 are ensured by the internal structure 30 of the material, the interaction between both ribs 22 and 32, the foam 24 and the friction protrusion-groove 24 and 35 corresponding structures.
  • Reference numerals 25 and 36 denote ordinary air holes for buffering which are formed in the longitudinal direction in the surface layer 21 of the outer structure 20 and the back layer 31 of the inner structure 30, respectively.
  • the guard rail 10 has a fixing hole 14 formed through the second rib 32 in the surface layer 21 of the outer structure 20.
  • the guard rail 10 is fixed to an element such as a post (P) based on the internal structure 30, if the fixing bolt 15 or the like penetrates the hollow fitting groove 33, the guard rail The support base of 10 becomes weak. Therefore, preferably, the fixing hole 14 of the guard rail 10 passes through the second rib 32 of the internal structure 30.

Abstract

La présente invention concerne une glissière de sécurité en plastique constituée d'un matériau en résine synthétique et fixée à un montant vertical dans une direction transversale. La glissière de sécurité de la présente invention comprend : une structure externe présentant une pluralité de premières nervures orientées vers l'intérieur; une structure interne présentant des rainures d'ajustement formées entre une pluralité de secondes nervures orientées vers l'extérieur de telle sorte que les premières nervures peuvent être ajustées et insérées dans ces dernières; et une couche intermédiaire destinée à relier des parties d'extrémité des premières et secondes nervures pour être en diagonale l'une par rapport à l'autre de telle sorte que la partie d'extrémité des premières nervures est positionnée à l'entrée des rainures d'ajustement lorsque les structures interne et externe se font face. Dans la structure, lorsqu'un impact est appliqué à la structure externe, la couche intermédiaire est coupée et réduit l'impact tandis que les premières nervures sont insérées de force dans les rainures d'ajustement.
PCT/KR2017/013971 2016-12-13 2017-12-01 Glissière de sécurité en plastique WO2018110877A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780006979.5A CN108474186B (zh) 2016-12-13 2017-12-01 塑料护栏

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160169333A KR101738549B1 (ko) 2016-12-13 2016-12-13 플라스틱 가드레일
KR10-2016-0169333 2016-12-13

Publications (1)

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WO2018110877A1 true WO2018110877A1 (fr) 2018-06-21

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PCT/KR2017/013971 WO2018110877A1 (fr) 2016-12-13 2017-12-01 Glissière de sécurité en plastique

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KR (1) KR101738549B1 (fr)
CN (1) CN108474186B (fr)
WO (1) WO2018110877A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101771134B1 (ko) 2017-05-02 2017-09-05 (주)카리스가드레일 봉형 플라스틱 가드레일
CN113086679B (zh) * 2021-04-09 2022-12-09 国网安徽省电力有限公司定远县供电公司 一种水泥电线杆卸车滚落器

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JPH1111239A (ja) * 1997-06-24 1999-01-19 Toyota Motor Corp エネルギー吸収構造体
KR100466411B1 (ko) * 2004-07-28 2005-01-13 유철리 레진 가드레일
KR20080103883A (ko) * 2007-05-25 2008-11-28 정인기 안전 가이드레일
KR100897583B1 (ko) * 2008-07-25 2009-05-14 김주영 운전자를 보호 및 시공이 편리한 안전 가드레일
KR101667562B1 (ko) * 2016-02-15 2016-10-19 고려씨엔씨 주식회사 이중 충격흡수구조를 갖는 차량용 충격흡수장치

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US5039567A (en) * 1989-12-04 1991-08-13 Supracor Systems, Inc. Resilient panel having anisotropic flexing characteristics and method of making same
CN100351121C (zh) * 2003-05-14 2007-11-28 京洛株式会社 汽车冲击吸收体
CN201202101Y (zh) * 2008-05-27 2009-03-04 陈万仁 防撞护栏
JP6330989B2 (ja) * 2013-04-09 2018-05-30 住友ゴム工業株式会社 渡し板

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1111239A (ja) * 1997-06-24 1999-01-19 Toyota Motor Corp エネルギー吸収構造体
KR100466411B1 (ko) * 2004-07-28 2005-01-13 유철리 레진 가드레일
KR20080103883A (ko) * 2007-05-25 2008-11-28 정인기 안전 가이드레일
KR100897583B1 (ko) * 2008-07-25 2009-05-14 김주영 운전자를 보호 및 시공이 편리한 안전 가드레일
KR101667562B1 (ko) * 2016-02-15 2016-10-19 고려씨엔씨 주식회사 이중 충격흡수구조를 갖는 차량용 충격흡수장치

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Publication number Publication date
CN108474186B (zh) 2019-05-14
CN108474186A (zh) 2018-08-31
KR101738549B1 (ko) 2017-06-08

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