| 摘要 |
FIELD: protection of seedlings from unfavorable weather conditions, especially frosts, may be used in gardening and flower planting. SUBSTANCE: thin-walled enclosure is adapted for plant covering formed as rectangular prism with sleeves adjoining to vertical ribs and designed to receive pins. Enclosure is made in the form of hose, which is symmetrically folded to define first and second outer ends, first and second ends positioned between outer ends at one side and third and fourth inner rectangular ends positioned symmetrically between outer ends at other side. First outer end borders along fold line at 180 deg with first inner end, the latter borders along fold line at 180 deg with second inner end. The latter borders along fold line at 180 deg with second outer end, which is bordering along fold line at 180 deg with third inner end. The latter is bordering along fold line at 180 deg with fourth inner end, which is bordering along fold line at 180 deg with first outer end. All ends mentioned are welded or glued along one end of folded hose with straight seam, extending perpendicular to fold lines. EFFECT: increased efficiency, reduced number of welded or glued seams and simplified folding of enclosure for transportation and storage. 3 cl, 5 dwg |
