摘要 |
FIELD: shipbuilding. ^ SUBSTANCE: folding sail-umbrella is designed for use on water transport, as well as sports and leisure uses (skis, skates, roller skates, snowboards, skateboards, ice boat, bicycles, carriages, sailboards, yachts, boats). Folding umbrella-sail is made with an adjustable angle of attack through the use of rotating base in a circle form, on which needles with attached sail material are fixed. Managing is performed with the tension of controlling thread and turning the mast around its axis. Folding sail-umbrella has a transport position, a neutral position at which the sail is parallel to the mast, the operating position at which the desired angle is fixed. ^ EFFECT: simplified management and improved usability. ^ 1 dwg |