METHOD FOR FABRICATIONG OF GRATING

PURPOSE: A method for manufacturing a grating is provided to manufacture a grating without the deterioration of a drainage function, deformation due to a high load, and welding. CONSTITUTION: A method for manufacturing a grating includes: a step of forming burring holes, first holes(122), and second...

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Bibliographic Details
Main Author KWON, HYUG MYUNG
Format Patent
LanguageEnglish
Korean
Published 20.03.2013
Subjects
CESSPOOLS
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE
FIXED CONSTRUCTIONS
MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
SEWERAGE
SEWERS
WATER SUPPLY
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Summary:PURPOSE: A method for manufacturing a grating is provided to manufacture a grating without the deterioration of a drainage function, deformation due to a high load, and welding. CONSTITUTION: A method for manufacturing a grating includes: a step of forming burring holes, first holes(122), and second holes(124) on a flat panel; a step of inserting burring punches into the burring holes to be expanded in order to simultaneously forming open water holes(112) and flanges; and a step of downwardly bending first side plates(120) and second side plates(130) against a top plate(110). [Reference numerals] (AA) Transverse direction; (BB) Longitudinal direction
Bibliography:Application Number: KR20120074157