US2008308779A1PendingUtilityA1

Resin Guardrail

Assignee: YU CHEOLPriority: Jul 28, 2004Filed: Nov 23, 2004Published: Dec 18, 2008
Est. expiryJul 28, 2024(expired)· nominal 20-yr term from priority
E01F 15/0453E01F 15/00
21
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Claims

Abstract

The present invention relates to a resin guardrail including a post, a plurality of guard plates coupled to the post, and connection members for connecting the guard plates to one another. Each of the guard plates of the guardrail is manufactured through extrusion. The guard plate comprises a hollow base body that takes the shape of a wave in cross section to include a rear ridge protruding rearward and having a flat portion and a front ridge protruding forward. The flat portion of the rear ridge and the front ridge are formed with first and second fastening holes, respectively, and the base body has solid portions for reinforcing regions with the first and second fastening holes formed therein. The guard plate further comprises wavy ribs that are positioned within a hollow portion of the base body to connect upper and lower ends of the base body to each other and have the same sectional shape as the base body; and alternately arranged horizontal ribs for establishing connection between the wavy ribs and between the wavy ribs and inner surfaces of the base body.

Claims

exact text as granted — not AI-modified
1 . A resin guardrail including a post, a plurality of guard plates coupled to the post, and connection members for connecting the guard plates to one another, wherein:
 each of the guard plates is manufactured through extrusion to comprise:   a hollow base body taking the shape of a wave in cross section to include a rear ridge protruding rearward and having a flat portion and a front ridge protruding forward, the flat portion of the rear ridge and the front ridge being formed with first and second fastening holes, respectively, the base body having solid portions for reinforcing regions with the first and second fastening holes formed therein;   wavy ribs within a hollow portion of the base body to connect upper and lower ends of the base body to each other, the wavy ribs having the same sectional shape as the base body; and   alternately arranged horizontal ribs for establishing connection between the wavy ribs and between the wavy ribs and inner surfaces of the base body.   
     
     
         2 . The resin guardrail as claimed in  claim 1 , wherein the guard plate is extruded using a mixture of a resin and a fluorescent material or noctilucent material.

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