Trellis wall for realizing e.g. parapet in sports field, has trellis fixed on rope passing drill holes whose axis is shifted with respect to vertical median plane of columns to be in plane closest to trellis

摘要

The wall has a flexible trellis (2) fixed on a tight rope (4) passing through drill holes (5, 6) crossing through circular shaped tubular columns (3). An axis of the drill holes realized in each column is shifted with respect to a vertical median plane (M) of the column to be in a plane (P) closest to the trellis. A support surface of the rope is larger than that of the drill holes along the vertical median plane of the column. The axis of the holes is defined based on diameter of the holes such that the holes are close to tangent at an inner face of the column.