Title:
HIGH-STRENGTH GRATING
Document Type and Number:
WIPO Patent Application WO/2015/050363
Kind Code:
A1
Abstract:
The present invention relates to a high-strength grating, and more specifically to a high-strength grating having coupling grooves on partitioning inner bearing bars, and reinforced partitioning connecting bars, having concave protrusions and convex grooves at set distances apart, attached at the concave grooves so as to provide a set level of stiffness. A grating according to the present invention is provided with inner partitioning bearing bars (20) partitioning, at set distances, the interior of a boundary frame (60) of any one shape from among a square or a rectangular shape, and discharge spaces (11) in between the inner partitioning bearing bars (20) so that a safety net (40) blocks the discharge spaces, wherein the inner partitioning bearing bars (20) are provided with assembly grooves (21) at set distances apart on the upper surfaces thereof, and a net support bar (50) is disposed in the width-wise direction in each assembly groove (21) so that the safety net (40), having a mesh sash (41) closing the four sides, is disposed on the upper side of the net support bars (50) so as to block the discharge space (11), and the reinforced partitioning connecting bars (30), having bent parts (31) and assembly parts (32), are assembled in the assembly grooves (21), wherein the assembly parts (32) are fitted into the assembly grooves (21), and welding sections (34) on both ends of the reinforced partitioning connecting bars (30) are fixedly welded onto the interior of the boundary frame (60), pressing on the safety net (40) below and fixing same.
Inventors:
OH WOONG-BAE (KR)
Application Number:
PCT/KR2014/009197
Publication Date:
April 09, 2015
Filing Date:
September 30, 2014
Export Citation:
Assignee:
WOOCHANG GRATING CO LTD (KR)
International Classes:
E03F5/06
Foreign References:
| KR20060102864A | 2006-09-28 | |||
| KR20100074486A | 2010-07-02 | |||
| KR20090026233A | 2009-03-12 | |||
| JP2005146729A | 2005-06-09 |
Attorney, Agent or Firm:
YOON, HEE-SIK (KR)
윤희식 (KR)
윤희식 (KR)
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