RU2007076C1 - Trawl for catching hydrobionts - Google Patents

Abstract

FIELD: commercial fishing. SUBSTANCE: trawl comprises upper 1 and lower 2 wings, square 3, bunts 4, 5, net bags 6, 7, headline 8 and fishing line 9. Bunts 4, 5 are formed by upper, lower, external side 12 and internal side 13 net sections. Internal edges of upper net sections are joined in point 15 located on rear edge of square. Internal edges of lower net sections are interconnected in point 17 on fishing line 9. Rib lines 18 are secured between point 15 and headline 8. EFFECT: improved design. 5 dwg

Description

 The invention relates to industrial fishing, and in particular to fishing trawls for fishing water objects.

 Known trawl system for fishing aquatic organisms, containing three trawls, the adjacent wings of which are interconnected via bare ends, trawl boards connected to the outer wings of the side trawls, warriors and connecting cables, in addition, the system is equipped with additional trawl boards connected to the warriors connected to the bare ends of the central trawl by means of the upper and lower cables, the side trawl headers are connected to the central trawl heap by lines, connecting cables are located between the trawl boards connecting brackets with the possibility of connecting-disconnecting them to the upper or lower cable of the central trawl to adjust the fishing zone vertically, additional trawl boards have an area exceeding the area of the trawl boards of the side trawls and cables of the central one, at the bare ends of adjacent wings of the trawl trawls, and the area of the mouth of the central trawl exceeds the mouth of the side.

 The specified trawl system has a complex structure, which creates difficulties when working with it on the deck of a fishing vessel. Launching and raising this system requires a lot of fishing time, which will negatively affect the total catch of a fishing vessel per voyage.

 The closest technical solution, selected as a prototype, is a trawl for fishing, containing upper and lower wings, a belt, upper, lower, lateral outer and lateral inner layers, forming two coiled parts, two bags for concentrating the catch, upper and lower selections while the inner edges of the upper layers are interconnected at a point located on the trailing edge of the upper part of the belt, and the inner edges of the lower layers are interconnected at a point located on the trailing edge of the lower part of the belt.

 The disadvantage of this trawl is as follows.

 In the process of trawling, the drag forces of the moving parts and bags act on the belt, which leads to a decrease in the vertical and horizontal opening of the trawl.

 The aim of the invention is to increase catchability by increasing horizontal disclosure.

 This goal is achieved by the fact that in the trawl for fishing of aquatic organisms, containing the upper and lower wings, the square, the upper, lower, lateral outer and lateral inner layers forming two coiled parts, while the inner edges of the upper layers are interconnected at a point located on the trailing edge of the square, two bags for the concentration of the catch, the upper and lower selections, the inner edges of the lower layers being interconnected at a point located on the lower selection, and between the connection point of the inner edges of the upper layer Selection of the upper and secured pozhiliny coinciding with the direction of the upper inner edges of the wings, the cut on the bias.

 Upper and lower wings, a square, two mottled parts are used to catch aquatic organisms.

 The bag is intended for the concentration of aquatic organisms trapped in the worn parts of the trawl.

 The connection of the inner edges of the lower layers at a point located on the bottom selection, in the absence of a mesh web between the lower wings and the lower layers, allows you to increase the horizontal opening of the trawl.

 Veins coinciding with the direction of the inner edges of the upper wings, cut along the oblique, and fixed between the connection point of the inner edges of the upper layers and the upper selection, reduce the load on the net cloth of the square and the upper wings of the drag forces of the worn parts and bags. This increases the horizontal opening of the trawl.

 In FIG. 1 shows the proposed trawl, General view; on fi g. 2 - open the upper part of the trawl; in FIG. 3 - cutting the lateral outer layer of the trawl; in FIG. 4 - open the bottom of the trawl; in FIG. 5 - cutting the lateral inner face of the trawl.

 The trawl for fishing of aquatic organisms contains the upper 1 and lower 2 wings, square 3, two wound parts 4.5, two bags 6.7 for the concentration of the catch, upper 8 and lower 9 selections.

 The woven parts 4 and 5 are formed by the upper 10, lower 10, lateral outer 12 and lateral inner 13 layers. The inner edges 14 of the upper layers 10 are interconnected at a point 15 located on the trailing edge of the square 3.

 The inner edges 16 of the lower layers 11 are interconnected at a point 17 located on the lower selection 9.

 Between the connection point 15 of the inner edges 14 of the upper layers 10 and the upper selection 8, veins 18 are fixed, coinciding with the direction of the inner edges 19 of the upper wings 1, which are cut along the oblique. The trawl works according to the usual scheme.

 The inventive trawl, in comparison with the prototype, has a large horizontal opening, which provides an increase in the catchability of the trawl. (56) French Patent No. 1,423,507, cl. A 01 K, 1966.

Claims (1)

 WATER BODY TRAIL, comprising upper and lower wings, a square, upper, lower, lateral outer and lateral inner plates forming two coiled parts, while the inner edges of the upper layers are interconnected at a point located on the rear edge of the square, two bags for the concentration of the catch, the upper and lower sets, characterized in that, in order to increase catchability by increasing the horizontal opening, the inner edges of the lower layers are interconnected at a point located on the lower selection, and between the point of connection of the inner edges of the upper layers and the upper collar fixed veins coinciding with the direction of the inner edges of the upper wings, cut along the oblique.

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