RU115769U1 - INTEGRATED UNIT - Google Patents

Abstract

A raft unit containing beams installed in a row and attached by flexible ties to fastening logs, characterized in that the extreme beams of the row are formed from round timber with a sufficient buoyancy margin, and between them there are beams of round timber with an insufficient buoyancy margin, while the extreme beams the rows are surrounded through the fastening log with a flexible connection along the top and bottom, and those located between them - only along the bottom, and the ends of the flexible connections pass through the holes in the fastening logs made from their ends at a distance equal to the width of the beam, and are equipped with clamps.

Description

The utility model relates to timber rafting and can be used in the formation of transport units in coastal warehouses with flooded rafts and forming raids.

It is known to use the most common raft units - bundles of round timber during timber rafting (Handbook on forest water transport / V. Scherbakov, Yu.P. Borisovets, V.D. Alexandrov, and others. Edited by V.A. . Scherbakova. - M.: "Lesn. Prom-st", 1986. p. 177). The disadvantage of the beam is insufficient strength with a small volume (up to 5 m ³ ).

Closest to the claimed solution is a raft unit containing beams installed in a row and attached to the fastening logs with their flexible connections (bundle strapping) (Guide on timber rafting. M.-L. Goslesbumizdat, 1952. p. 220). This raft unit is taken as a prototype. The disadvantage of the prototype is the insufficient strength of the raft unit, formed from beams with different margins of buoyancy, because fastening is carried out by turning the upper branches of the bundle bundles through the fastening logs using short timber. At the same time, beams with different buoyancy margins with the same overall dimensions have different draft, therefore, the tension of the strands will be different.

The problem the utility model aims to solve is to increase the strength of a raft unit, formed from bundles of round timber with different buoyancy margins.

This is achieved by the fact that in a raft unit containing beams installed in a row and attached with flexible ties to the fastening logs, the extreme bundles of the row are formed of round timber with a sufficient buoyancy margin, and bundles of round timber with an insufficient buoyancy margin are installed between them. extreme bundles are enclosed through the fastening log by flexible connection on the top and bottom, and located between them - only on the bottom, and the ends of the flexible connections pass through the holes in the fastening logs made from their ends at a distance equal to the width of the beam, and are equipped with clamps.

The listed essential features make it possible to increase the strength of a raft unit formed from bundles of round timber with different buoyancy margins.

The authors are not aware of the existence of a similar raft unit characterized by the totality of these essential features introduced into the utility model formula. Therefore, the authors believe that the utility model meets the patentability criterion of “novelty”.

The utility model is illustrated in the drawing, where Fig. 1 shows a raft unit, side view, Fig. 2 also a top view.

A raft unit contains bundles arranged in a row. The extreme bundles 1 are formed from round timber with a sufficient buoyancy margin, for example, from a spruce or pine log, and the bundles 2 installed between them (shaded in FIG. 1) from round timber with an insufficient buoyancy margin, for example, from hardwood assortments. Fastening logs 3 are laid across the beams from above, to which the bundles are attached with flexible ties 4. Flexible ties through the fastening logs cover the extreme bundles of the row along the top and bottom, and located between them only at the bottom. Moreover, the ends of the flexible connections pass through holes in the mounting logs made from their ends at a distance equal to the width of the beam, and are equipped with clamps 5.

The formation of the raft unit is as follows. In the winter period, in a flooded graveyard, 2 bundles of assortments with an insufficient buoyancy margin are stacked in a row on the lining. Beams 1 of the assortments with a sufficient margin of buoyancy are laid to them from the sides. Then, fastening logs 3 are laid on top of the beams and across them. A flexible connection 4 is passed through the hole in the fastening log, then it is brought under the extreme beam 1, it is covered from above together with the fastening log, it is brought under the beam 2 from round timber with insufficient buoyancy, cover fixing log. Similarly, they cover the remaining bundles with a flexible connection. After that, a flexible connection is passed through another hole in the mounting log. Then, using a portable winch, the flexible connection is pulled and clamps are placed at its ends. In a similar way, raft units are formed during the navigation period on the water.

Claims (1)

A raft unit containing beams installed in a row and attached by flexible ties to the fastening logs, characterized in that the extreme bundles of the row are formed from round timber with a sufficient buoyancy margin, and between them are bundles of round timber with an insufficient buoyancy margin, while the extreme bundles rows are surrounded through the fastening log by flexible connection on the top and bottom, and located between them - only on the bottom, and the ends of the flexible connections pass through the holes in the fastening logs made from their ends at a distance equal to the width of the beam, and are equipped with clamps.