Protection device for defending cultures against hailstorms or frost, has rollable protection panels supported on axes provided into housings at both ends of each longitudinal stringer

摘要

Spaced apart longitudinal stringers, supported on posts, have housings at both ends hovering above the cultures to be protected. Each housing houses an axis on which a protection panel is rolled. A cable extension or brace is passed through pulleys on the ground and on the panel side and is pulled to unroll the panel from the axis.