| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flexible guard fence for a vehicle, which can exert stable protective performance on various types of vehicles, a collision speed, and a collision angle. <P>SOLUTION: In a guard fence M, one protective net 30a comprising a large number of unit blocks 10 aligned lengthwise and breadthwise is provided in a tensioned state on a road by using a holding rope 50 and a support 60, The unit block 10 includes a plurality of ring-shaped circular plates 11, and a ring-shaped rubber plate 14 which is interposed between the circular plates 11. The large number of unit blocks 10 are concurrently shear-deformed in an impact on the vehicle to absorb vehicle collision energy in a phased manner, and the protective net 30a is deformed to envelop the colliding vehicle. <P>COPYRIGHT: (C)2013,JPO&INPIT |
