Thickness conserving device for snow cover and safety nut fixation of ski piste, has metallic poles constituted by metallic part including base vertical plated in concrete, and metallic crossbeams bolted to ground through rod

摘要

The device has metallic poles (1) that are constituted by a metallic part including a base vertical plated in a concrete (3). Metallic crossbeams (6) are bolted to a ground through a threaded rod (4) having a diameter of 25 millimeter. Wood plates are fixed to the poles. A fixation system is arranged between a safety screw thread (17) and a rigid barrier by a cable (14) having a diameter of 10 millimeter.