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1. (WO2018159880) PLASTIC GUARDRAIL

Pub. No.:    WO/2018/159880    International Application No.:    PCT/KR2017/002292
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Sat Mar 04 00:59:59 CET 2017
IPC: E01F 15/04
Applicants: CARIS GUARD RAIL CO., LTD.
(주)카리스가드레일
YOO, Jun-Ryeong
유준령
Inventors: YOO, Jun-Ryeong
유준령
Title: PLASTIC GUARDRAIL
Abstract:
The present invention relates to a plastic guardrail. The present guardrail is made of a thermoplastic resin material and is extrusion-molded into a multilayer structure having interlayer ribs, wherein an outer layer, an inner layer, and the ribs are integrally molded by a double extrusion method in which a high-strength material is applied to the outer layer in order to reinforce impact resistance, and a material lower in strength than that of at least the outer layer is applied to the inner layer and the ribs in order to reinforce inner shock-absorbency. According to the guardrail of the present invention, impact resistance and a shock-absorbing function are simultaneously secured.