| 摘要 |
PURPOSE: A guardrail having a shock-resistant coupling structure of a support and a buffer unit is provided to improve bending rigidity by integrally welding multiple square pipes to supports. CONSTITUTION: A guardrail having a shock-resistant coupling structure of a support and a buffer unit comprises supports(20), buffer units(30), and a support plate(40). Multiple square pipes(10) are welded to the side surface of each support. A fastening unit is formed on each buffer unit and is coupled to the protruded part of each support. A pair of wing pieces are formed on both sides of each buffer unit and are coupled to the rear surface of the support plate. The support plate is coupled to the ends of the wing pieces of the buffer units.
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