UNIT FOR LAYING OF PERFORATED FILM ONTO RIDGE OF PREDETERMINED PROFILE Russian patent published in 2006 - IPC A01B13/02 A01B49/02 A01C7/00 

FIELD: agricultural engineering, in particular, equipment for preparing of soil, laying of irrigation pipeline and mulching film onto ridge having predetermined profile.

SUBSTANCE: unit has frame carrying soil rakes, ridge forming device equipped with unit for laying of irrigation pipeline located on drum, brackets for film roll, pressure wheels and coverers for spilling soil onto mulching film edges, said parts of unit being arranged in succession. Soil mellowers are disposed in front of soil rakes on frame so that spatial position thereof may be adjusted. Soil mellowers are made in the form of general-purpose and chisel-shaped mellowing A-cultivator hoes. Ridge former is equipped in its central part with leveling board movable in vertical plane and provided in its central part with roll arranged at the level of lower edge and adapted for guiding of flexible irrigation pipeline coming down from drum. Brackets for film roll are positioned on frame in succession behind roll. Perforator mounted on brackets under frame is defined by cylindrical drums located for fixed displacement on horizontal transverse shaft. Mounted on outer drums under guiding rods are pins which intersect plane of arrangement of guiding rods. Replaceable perforating knives are located on intermediate drums in spaced apart relation, with circumferential pitch being equal to seedling planting pitch.

EFFECT: wider operational capabilities and provision for creating favorable conditions for development of seedlings.

8 dwg