Impact absorption facility for road

In an impact absorption facility for road which is installed in a centerline of a road or a road side for absorbing and distributing the impact when a vehicle collides, an impact absorption facility for road, comprising;

• a plurality of piles which are installed in a centerline of a road or a road side at regular intervals and are shaped in column-shapes;
• a rotation support pipe 20 which is rotatably engaged to the pile 10;
• a plurality of cushioning roller members 200a which are rotatably engaged to an outer surface of the rotation support pipe 20 and are equipped with engaging members 201 with the inner and outer sides of the same being made of integral elastic rubber materials and being formed in cylindrical shapes, with the outer side of the same being equipped with a high luminance reflection band 205;
• a plurality of safety rails 300a which are installed in the cushioning roller member at regular intervals and are horizontally installed to both sides of the upper and lower side of each pile 10;
• a first rotation block plate 600a which is installed in upper and lower ends of an outer surface of the rotation support pipe 20 equipped with the cushioning roller member 200a, with a first fixing groove 21 being formed in one surface of the rotation support pipe 20, with a second fixing groove 602 being formed in part of an inner surface of the engaging hole 601 and fixed by means of a first fixing pin 22, with a plurality of upwardly protruded radial first protrusions being formed in one side of the same;
• and
• a second rotation block plate 600b which is installed in the upper and lower sides of the pile 10 for mounting on the upper and lower surfaces of the first rotation block plate 600a installed in the upper and lower sides of the rotation support pipe 20, with a third fixing groove 11 being formed in one surface of the pipe 10, with a fourth fixing groove 602 being formed in pat of an inner surface of the engaging hole 601 for fixing by means of a second fixing pin 12, with a plurality of upwardly protruded radial first protrusions 603 being formed in the second rotation block plate 600b and engaged with one side in which the first protrusions 603 of the first rotation block plate 600a are formed.