| 摘要 |
FIELD: building, particularly for construction and reconstruction of opened stadiums to provide all-year-round care of grass. ^ SUBSTANCE: device includes multi-sectional envelope spaced from grass surface to provide free movement of maintenance staff, system of ropes and pulleys for fixing device in its lower position and to displacing thereof in its upper position. Envelope is of convexo-concave shape and has dimensions corresponding to that of playing ground. Envelope is formed of light transparent durable non-combustible materials. Convex envelope side face upwards and spaced a distance enough for free passage of small-size machinery for take care of grass. Device has anti-vandal ceiling formed of light transparent materials and walls extending along its perimeter and having entrance doors for maintenance staff. ^ EFFECT: possibility of all-year-round stadium usage. ^ 4 dwg, 1 ex |
