Impact absorbing device for dynamic barriers against rockfalls

Abstract

An impact absorbing device comprises at least one tube. This tube has a wall that is provided with two holes at a first side and two holes at a second side. The device further comprises a first rope and a second rope. The first rope passes through the tube or tubes starting from a first hole at the first side and going to a first hole at the second side. This first rope is provided at its one end with a thickening that prevents the first rope from slipping back through the tube or tubes. The second rope passes through the tube or tubes starting from a second hole at the second side and going to a second hole at the first side. The second rope is provided at its one end with a thickening that prevents the second rope from slipping back through the tube or tubes.