RU2230443C2 - Hand-held tillage tool - Google Patents

Abstract

FIELD: agricultural equipment, in particular, hand-held equipment for tillage of agricultural land and country house plots.

SUBSTANCE: hand-held tillage tool has working tool connected through holder to shank and made in the form of U-shaped bracket with cutting members attached thereto by fastening members. Cutting members are made in the form of two plated knives formed as shares fixed in parallel with one another on U-shaped bracket. Each plated knife is composed of upper flat part and lower curved part. Flat parts of knives are aligned with vertical walls of U-shaped bracket. Outer sides of curved part of each knife are converging at an angle of 30-45 deg to define wedge and are sharpened to form cutting edges. Holder is made in the form of faceplate with openings for receiving of fastening members and is rigidly attached to horizontal part of U-shaped bracket. Holder is arranged at an angle of 20-50 deg to horizontal part of U-shaped bracket in horizontal plane and at an angle of 30-60 deg to horizontal part of U-shaped bracket in vertical plane.

EFFECT: enhanced reliability in operation and increased efficiency of

hand-held tillage tool.

3 cl, 4 dwg

Description

The invention relates to manual agricultural implements and can be used in the processing of agricultural land, summer cottages and personal plots.

Known manual cultivating implement Fokin [1], including an elongated blade fixed by an arm to the end of the handle, while the cutting edge of the blade with a plane passing through the longitudinal axis of the handle makes an angle of 50-90 °, and its front surface with another surface perpendicular to the aforementioned , - angle 45-75 °, the blade is made narrowing in width in the direction from the handle.

The disadvantage of this technical solution is the lack of productivity in the tillage, due to the narrow profile of the blade.

The closest technical solution to the proposed technical solution is a manual tool for tillage [2], which includes a working body in the form of a rectangular frame, the base of which is connected to the handle, and the blade in the form of the lower and side parts of the frame has a sharpening along the outer contour on both sides, the base is made in the form of a U-shaped bracket, on the opposite sides of which two cylindrical pins are installed on the inside, and the side parts of the frame at the ends have holes for the pins when installing the internal base.

The well-known hand tool also has the disadvantage noted above - low productivity when processing the soil, because the cutting element has a small area, which limits the "capture" of the soil that needs to be processed.

The technical result, which consists in eliminating the aforementioned drawbacks, is achieved in the proposed manual soil cultivation tool, comprising a working body connected by a holder to a handle and made in the form of a U-shaped bracket on which the cutting elements are fixed by means of fasteners so that the cutting elements are made in in the form of two plate knives in the form of plowshares fixed parallel to each other on a U-shaped bracket, with each plate knife consisting of an upper flat and lower curved part, We eat the flat parts of the knives aligned with the vertical walls of the U-shaped bracket, and the outer sides of the curved part of each of the knives are made converging in the form of a wedge at an angle α = 30-45 ° and sharpened as cutting edges.

The holder is made in the form of a lining with holes for fasteners and is rigidly attached to the horizontal part of the U-shaped bracket and is located at an angle β = 20-50 ° to the horizontal part of the U-shaped bracket in the horizontal XOY plane and at an angle γ = 30- 60 ° to the horizontal part of the U-shaped bracket in the vertical XOZ plane.

The invention is illustrated by drawings, where

- figure 1 presents the hand gun assembly;

- figure 2 shows the coordinate system in which the angles α, β and γ are indicated;

- figure 3 shows three projections of a U-shaped bracket and holder;

- figure 4 shows three projections of knives.

A hand tool for tillage (Fig. 1) contains a working body made in the form of a U-shaped bracket 1 connected by a holder 2 to a handle 3.

The holder 2 is made in the form of a lining with holes 4 for fasteners and is rigidly attached to the horizontal part of the U-shaped bracket 1, for example, by electric welding.

The pad is located at an angle β = 20-50 ° to the horizontal part of the U-shaped bracket in the horizontal XOY plane and at an angle γ = 30-60 ° to the horizontal part of the U-shaped bracket in the vertical XOZ plane (see FIGS. 2 and 3) .

On the U-shaped bracket 1 are fixed by means of fasteners 5 cutting elements made in the form of two plate knives 6 in the form of plowshares mounted in parallel on the walls of the vertical parts of the U-shaped bracket 1 (Fig. 1).

Each plate knife 6 consists of an upper flat 7 and a lower curved 8 part (Fig. 4), while the flat parts 7 of the knives 6 are aligned with the vertical walls of the U-shaped bracket 1, and the outer sides of the curved part 8 of each of the knives are made converging in the form the wedge at an angle α = 30-45 ° and sharpened as cutting edges 9 and 10.

The work of the proposed manual tool for tillage is as follows.

The hand tool is held with both hands so that the handle is inclined with respect to the cultivated surface of the earth, and the knives are located somewhat away from the working person.

Then carry out the swing of the gun and the impact of the cutting edges of the knives on the selected surface area, resulting in undercutting of the upper soil layer. After that, the cut soil layer is buried on itself, loosening it.

The sharp edges of the knives allow you to trim the roots of weeds, which are then removed to the side with the appropriate movement of a hand gun.

Using the proposed tool, it is possible to produce earthing up and local "tilling" of the soil.

The presence of two parallel knives, made in the form of plowshares, increases the efficiency of tillage in relation to the known hand tools of the same purpose, because with each movement, an effect is made on the increased area of the local area.

Sharpening the edges of the knives in the form of a wedge allows a targeted effect on the hard clods of the earth to loosen them.

For the manufacture of a U-shaped bracket and holder, ordinary structural steel is used. Special alloys, hardening, or carbide hardening can be used to reduce wear on the edges of knives.

The proposed manual tool for tillage has passed industrial tests and has shown operational efficiency and reliability in operation.

Sources of information

1. RF patent No. 2040133, M. cl. A 01 B 1/08, published. 1995 year

2. RF patent No. 2038711, M. cl. A 01 B 1/08, published. 1995 year

Claims (3)

1. A manual tool for tillage, containing a working body connected by a holder with a handle and made in the form of a U-shaped bracket, on which cutting elements are fixed by means of fasteners, characterized in that the cutting elements are made in the form of two plate knives in the form of plowshares, fixed parallel to each other on a U-shaped bracket, each plate knife consists of an upper flat and lower curved parts, with the flat parts of the knives aligned with the vertical walls of the U-shaped bracket, and the outer Torons curved portion of each of the blades are made converging in a wedge angle of 30 ÷ 45 ° and sharpened as cutting edges. 2. A manual tool for tillage according to claim 1, characterized in that the holder is made in the form of a lining with holes for fasteners and is rigidly attached to the horizontal part of the U-shaped bracket. 3. A manual tool for tillage according to claim 2, characterized in that the pad is located at an angle of 20 ÷ 50 ° to the horizontal part of the U-shaped bracket in the horizontal plane and at an angle of 30 ÷ 60 ° to the horizontal part of the U-shaped bracket the plane.

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