Utility model "arcuate support cutting spades," relates the International Patent Classification Class A "Human necessities".; The device is intended to facilitate horticultural and other digging work shoveling, lifting part of the processed material (earth, soil, soil, mortar, sand and cement) above the level of the under support bulk and discharge it to the side, and without departing support from the surface level the bulk material.; The arcuate bearing cuttings shovels - a half-arches (semicircle, semi-oval, semi-ellipse) having a lug, e.g., circular or ring crimped, at its ends, through which the threaded shank shovels. One eyelet support is located directly at the top of the blade shovel, another in the region bearing diameters - also on the handle, the convex part of the support arch rests on the surface of the treated material (soil, earth, soil, turf), which may be a thrust bearing to prevent drowning arc base in loose or bulk material by reference.; Convexity support allows swinging movement of the cutting blade and the shovel down-up, perform a rotation about pivot point above the surface of the processed material without raising the bulk of the support surface, rotation of shovel blade lugs in a fixed upright support.; Arc eyes are not fixed rigidly to the handle of a shovel, suspension sags freely under its own weight in the upright position.; Handle shovels and the arc lever of the first kind is formed with a short arm (of a shovel blade to the point on the arc foot pasture material) and length (from the point of the arc foot to the opposite end of the cutting blade shovels). Fulcrum is projected on a cutting shovel.; Point touch support arc soil shifts depending on the inclination of the cutting shovel. At high partite position of the cutting blade end (e.g., when entering the blades ground) of the arc foot point close to the blade during horizontal cutting position - is removed from the blade support to half the diameter of arc.; This causes changes in the lengths of the lever arm.; The shortening of the lever arm causes the mechanical advantage that reduces the force for detachment of the material of the total weight, multiply the quotient of the length of a large shoulder on the short length.; The gain in power when operating a standard bayonet spade - mnogokraten.; If the weight of the material in the shovel blade - 4.2 kg, the force when lifting with the help of the arc support of 600 g; The operation of separation of the material takes place worker direct downward pressure on the long arms of the lever arm using the weight of the trunk running, without force compression arm muscles and back into lifting up the shovel with the load on a support material.; The arc and support lugs may be formed, or of a metal or hard plastic or wood.; Cyclic operating sequence is as follows: the shovel blade is introduced into the material (earth, gravel, soil, turf) via the legs and arms; material on the shovel blade, and is lifted off by pushing down on the long end of the cutting body weight worker; It turns on the discharge to the side without lifting the bottom of the arc above the level of the material being processed.; The support has the shape of half-arches (semi-oval, semi-circle, semi-ellipse) of a given curvature. Has eyelets at the ends of the arcuate support, the end plane of which is perpendicular to the plane of the support; thrust bearing at the arc base of the arc for obstacles drowning in loose or bulk material is mounted on an arc of a bolt and nut or pin; lock in Dolny from the blade eyelets to prevent slipping from the arc to the distal end of the cutting blade.; Arc support can sit down on the cuttings with different types of blades shovels, as well as on the forks.
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