Title:
樹脂製ガードレール
Document Type and Number:
Japanese Patent JP2008508452
Kind Code:
A
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.
Inventors:
Yuchul
Han Bouyan
Chu Won Sik
Yusun Yi
Han Bouyan
Chu Won Sik
Yusun Yi
Application Number:
JP2007523456A
Publication Date:
March 21, 2008
Filing Date:
November 23, 2004
Export Citation:
Assignee:
Wooler Tech Co., Ltd.
Yuchul
Han Bouyan
Yuchul
Han Bouyan
International Classes:
E01F15/00; E01F15/04
Domestic Patent References:
| JP2003041540A | 2003-02-13 | |||
| JPH1018257A | 1998-01-20 | |||
| JPH05321966A | 1993-12-07 | |||
| JPH0914320A | 1997-01-14 |
Foreign References:
| US5152507A | 1992-10-06 |
Attorney, Agent or Firm:
Takaishi Tachibana