RU2043255C1 - Raft section - Google Patents

Abstract

FIELD: forestry industry. SUBSTANCE: raft section has round timber of limited buoyancy which is laid in upper row 1, inner row 2 and lower row 3 and stacks of round timber of increased buoyancy provided with binding. Raft section is provided with flexible inner couplings 6 located horizontally and used for connection of extreme timber of inner rows 2. Timber of inner row 2 rests against stacks 4 of timber 6 which are interconnected by means of flexible binding 7 embracing the round timber of limited buoyancy on the outside. EFFECT: enhanced reliability.

Description

 The invention relates to the forest industry and can be used in the alloy of timber along rivers with shallow depths.

 The least labor-intensive raft unit, which allows the use of rafting mechanisms, is a beam. The bundles are formed from parallel circular timber, connected by bundle strapping. They are simple in design, but when floating along small rivers, they have a small volume.

 Known flat raft unit containing rows of logs interconnected by rigid bonds, and the logs in each row are laid in the direction perpendicular to the previous one. This design is taken as a prototype.

 The disadvantage of the prototype is the complexity of the design and the high consumption of fixing timber.

 The purpose of the invention is to simplify the design of the raft unit.

 This goal is achieved by the fact that in a raft unit containing rows of round timber, the inner rows of timber of limited buoyancy are perpendicular to the outer and are limited on both sides by bundles of timber of increased buoyancy. The ends of the timber of the inner rows abut in packages, interconnected by flexible strapping, covering the outside of the timber of limited buoyancy. Extreme timber of the inner rows are connected by horizontal flexible connections. In addition, flexible harnesses and ties are connected by vertical ties.

 New distinctive features in the proposed technical solution is that the timber of the inner rows with limited buoyancy abuts butt ends in packages of round timber with increased buoyancy. At the same time, the raft unit is equipped with flexible internal connections located horizontally and connecting the extreme timber of the inner rows, and the packages are interconnected by flexible strapping, covering the outer round timber of limited buoyancy. Moreover, the timber of the upper and lower rows are parallel to the packages, and the flexible strapping and ties are connected by vertical ties. Therefore, the proposed technical solution meets the criterion of "novelty."

 The listed set of new features makes it possible to ensure a significant volume of the raft unit with a small draft. This eliminates the expense of fastening timber and reduces labor costs for the manufacture of a raft unit, since the design is much simpler. Therefore, the proposed technical solution meets the criterion of "positive effect".

 In contrast to the known flat raft units, the proposed one contains several rows of individual round timber and packages of round timber. Moreover, timber of limited buoyancy is located between packages of round timber of increased buoyancy. In this case, the timber of the inner rows butt on the ends of the packages, and the timber of the upper and lower rows are parallel to the packages, which are interconnected by flexible strapping, covering the outside of the timber with limited buoyancy. In addition, the raft unit is equipped with flexible internal connections located horizontally and connecting the extreme timber of the inner rows. At the same time, flexible ties and ties are connected by vertical ties. Thus, the proposed technical solution meets the criterion of "significant differences".

 In FIG. 1 shows a raft unit, side view; in FIG. 2 same, top view; in FIG. 3 section aa in figure 1.

 The raft unit contains round timber of limited buoyancy, which are stacked in the upper 1, inner 2 and lower 3 rows, and packages 4 of round timber of increased buoyancy (shaded in FIG. 1), equipped with strapping 5. The raft unit is equipped with flexible inner ties 6 arranged horizontally and connecting the extreme timber of the inner rows 2. The timber of the inner rows 2 abuts in the packages 4 of the timber 6, which are interconnected by flexible strapping 7, covering the outside of the round forest materials of limited buoyancy, which are parallel to the packets in the upper 1 and lower 3 rows 4. Flexible strapping 7 and ties 6 are connected by vertical ties 8, which can be made in the form of a piece of wire fixed to the lower branch of the strapping tying, covering a flexible connection and fixed on the upper strapping branches.

 The formation of the proposed raft unit can be carried out both on shore and on water. When forming on the shore, for example, in the winter, the lower row 3 of timber of limited buoyancy is first laid on the graveyard on strapping 7 previously laid on the surface of the pasture, to which vertical ties are attached 8. These ties are passed between the logs of the row and laid on its surface. Then parallel to the logs of the row close to the extreme logs are placed packages 4 of timber of increased buoyancy, on which the strapping 5 is preliminarily laid. After that, the inner rows 2 of timber of limited buoyancy are laid perpendicularly to the packages. In this case, the extreme timber is connected by flexible horizontally arranged internal bonds 6, which are wrapped by vertical ties 8. After completion of the formation of the inner rows, the ties 8 are laid on top of the timber. Then, in parallel with the packages 4, the upper row 1 of timber of limited buoyancy is laid, and the ties 8 are brought out on top of the row. After this, the strapping of the raft unit is pulled and connected, vertical ties 8 are fastened to the strapping.

 During the flood period, raft units float and form rulers, rows or rafts that tow the consumer.

 When forming the proposed raft unit both on the shore and on the water, manipulators can be used. The raft unit is simple in design, less labor-consuming to manufacture, eliminates the consumption of fastening timber. Compared with beams of the same draft, it has a larger volume and, therefore, greater wave stability. As a result, wood losses will be reduced. Due to the denser stacking of wood in the raft unit, as well as due to the more complete use of the dimensions of the raft, the raft full-wood coefficient of the proposed raft units increases by 20-25% compared to the raft from bunches, and therefore, operating costs for towing the raft are reduced.

Claims (1)

 A SOLID UNIT containing outer and inner rows of round timber interconnected by bonds, characterized in that the inner rows are made of wood of limited buoyancy, are perpendicular to the outer rows and bounded on both sides by packages of increased buoyancy timber parallel to the outer rows of timber, while the ends of the timber of the inner rows are arranged to interact with packages interconnected by flexible strapping, covering Limited flotation timber outside, and the outermost timber internal series connected horizontal flexible links, wherein the flexible connection and connected piping vertical ties.

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