SHOCK ABSORPTION UNIT AND ROCK FALL PREVENTION SYSTEM

摘要

A shock absorption unit (10, 20, 100, 200) for absorbing shock has a compressible spring (12, 22, 120, 220) and a securing member (14, 24, 152, 230) for securing the spring. When the magnitude of the shock applied to the shock absorption unit (10, 20, 100, 200) is greater than a prescribed threshold value, the securing member (14, 24, 152, 230) fractures, whereby the shock applied to the shock absorption unit (10, 20, 100, 200) is absorbed.