COUPLING STRUCTURE FOR A GABION WITH SPIRAL TWIST STRUCTURE COMPOSED OF AN UPPER WIRE, A LOWER WIRE AND A HORIZONTAL WIRE AND THE MANUFACTURING METHOD

摘要

PURPOSE: A coupling structure for a gabion unit is provided to automate the manufacture of a gabion wire completely by dealing successfully with the structural limit of a gabion wire. CONSTITUTION: The manufacturing method of the coupling structure(10) for a gabion unit comprises the steps of: forming a front spiral twist structure(12) by rotating an upper wire(A) and a lower wire(B) to one side; fitting a horizontal wire(C) horizontally against the advancing direction of the front spiral twist structure(12) between the upper wire(A) and the lower wire(B) of the front spiral twist structure(12); and forming a rear spiral twist structure(14) by rotating the upper wire(A) and the lower wire(B) to the opposite direction of the one way around the horizontal wire(C).