FLOWER WITH IRON PETALS | MODEL CONSTRUCTION

When you create a small mounted implements, hand tools for tillage, as well as in solving other technical problems of Amateur designers are often faced with the necessity of installation on the axis of certain of the parts at an angle, the value of which could easily and quickly change. For example, depending on the nature of the cultivated soil, its moisture content, etc.

Many opt for retaining the knot with a pin inserted in one of the holes made with a certain step. But the number of possible positions here, as a rule, small.

Longtime subscriber “M-K”, candidate of agricultural Sciences S. Larkin offers to take advantage of the clamping unit, the main elements of which are made in the form scalloped “flower” or adjusting of the clutch V-neck small (“mouse”) tooth.

Among the variety of manual tools, fixtures and tools for soil cultivation, plant care and weed control, a significant place is occupied by structures with a rotary working portion. These include shovels, blade (bayonet) which can be set at a particular cutting angle. For example, with the help of a pin inserted into one of mounting holes, made with a step of determining the discreteness adjustment.

All this I had to remember when I got a private suburban area, and the appropriate tools to work the land, alas, is not got. So I decided to fill the gap, starting with the manufacture of shovels hoes. But this, in which the canvas might be mounted virtually at any “corner cutting” (in small increments).

Somehow it just popped up in memory microsatellite on tightly clinging to each other surfaces. Then — a leap of imagination to the small teeth included in engagement the ends of the two bushings… So it’s a simple and quite reliable solution to a technical problem!

Hand immediately reached for the pencil. And on paper appeared the first sketches of the future design of shovel-hoes, which if necessary can serve and pollinica-cultivator (with minimal angle of attack). The final version was immediately implemented (see Fig.), fortunately nearly all the necessary there: and the old, beat-up tongs, which were meant to be the body of the tool, and cut a steel pipe of suitable diameter (bushing and fatty fasteners), and a bayonet without tolicy broken from a neighbor’s shovel, and, of course, files with a hacksaw. Welding works helped to run the specialists collective workshop. As, however, and choose the required bolt (the axis) with the wing nut.

Fig. 1. “Flower” shovel-hoe with rotary blade:

1 — turning leaf, 2 — sleeve-scalloped base with fasteners on the ends, 3 — case with tulisa and fatty fasteners, 4 — axis, 5 — nut M14 wing, 6 — stalk.

Fig. 2. The toothed element mounting pegs and the side of the trailer to the motorcycle, which can be used in makeshift constructions with “flower”.

Fig. 3. Universal tool of the gardener-gardener with a patented mounting node

Fig. 3. Universal tool of the gardener-gardener with a patented mounting hub:

1 — stacked rotatable canvas, 2 — patented fastening element (7), 3 — the case of fatty tulisa and notched fastening elements, 4 — axis, 5 — M12 wing nut, 6 — stalk; And — embodiment of a work item, stacked canvases.

Used in the construction of the shovel-hoes fixing unit dubbed himself “the flower” — the similarity of gear elements (for edges incoming into engagement with each other tubes) with an open halo of daisies. Admired the simplicity and reliability of the resulting attachment.

Fig. 4. Options for possible reforms of the universal tool:

1 — fork, 2 — toothed hoe, 3 rakes.

Fig. 5. “Flower” in the hitch mechanism units mini-tractors.

Fig. 6. The use of couplings with V-neck small (“mouse”) a tooth to the attaching node.

The main parameters of the control and safety couplings with V-shaped fine teeth.

M* — maximum permissible torque: the numerator for the angle β = 60° (see figure and table profile of teeth), the denominator for β = 90°.

Linear dimensions, mm

^zp — number of teeth control and safety couplings.

But as it turned out, the laurels of the discoverer is not for me. Fastening the knots with the incoming into engagement with each other toothed elements are already used in the art. For example, in the motorcycle IZH-P, IL-L2, IL-L3 (see figure). Moreover, 40 years ago the patented, turns out to be a universal tool of the gardener-gardener with a mounting node — analogous to my “flower”. Moreover, the rotary blades of this invention are made stacked. In combination with fasteners, each of which has on its four faces according to “flower”, it gives the possibility of varying not only originally performed by tool works (digging, weeding, hoeing, harrowing, etc.), but also the type, the shape of the tip (see Fig.).

Lifting, for example, each of the second elements, stacked canvases, you will receive a convenient tool for digging roots. Dropping all of them down, have a rectangular shovel with a wide blade. Well, for “grubbing” weeds with long, narrow root is the best fit tool with a single omitted work item, stacked canvases.

The originality of the structure in question can not refuse. As, however, and in the universality, the possibility of wide application in any sector, in any compound. Only here to make, is probably complicated.

To fulfill my “flower” are quite capable of any, including beginner, homebrew. And the use of such clamping unit is wide enough. In particular, it is successfully possible to use in the hitch mechanism of the units in any two-wheel tractor, mini tractor (see figure). And as the toothed fasteners to use both halves of the coupling V-neck small (“mouse”) tooth, produced by the domestic industry. Welded to bond with each other part or parts of any mechanical system with a common axis, they allow you to securely fix these parts (system part) under any desired angle.

An example of the use of such couplings with the adopted letter designations, their parameters are given in the illustrations. And the parameters of commercially available control and safety couplings V-neck small (“mouse”) tooth tabulated. Choose the most suitable for self-made design, size, and boldly proceed to implement the plan. Creative you success!

S. LARKIN, candidate of agricultural Sciences, Moscow

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