JPS61651A - Knotless fishing net - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a knotless fishing net used for purse seine or trawl nets, etc., and in particular a four-penetration type fishing net having a penetrating portion in which two-stranded strings are crossed. It concerns knotless fishing nets.

(Prior Art) Generally, this type of four-penetrating knotless fishing net has the penetrating portions shown in FIGS. 3 and 4. To explain one of the penetration parts, in order to form a mesh, two twisted strings a, b, c, and d approach each other from different directions while being twisted, and each string crosses to form the penetration part e. is formed, and as the string is further twisted, the next penetrating portion is formed between the strings and other strings, so that a mesh is sequentially formed. In this case, the penetrating part e is simply the strings a and b that cross and pass through one twist formed by the strings c and d, and the penetrating part e is the thread that comes out in all directions from the penetrating part. It is held only by the twists of legs A, A', B, and B'.

With this structure, when a load is applied to the mesh like a membrane, the penetration part e easily resists the twisting of the yarn legs! Not only does the fishing condition become worse due to deviation from 1i, but also the fishing condition becomes worse.
If one of the strings of the real twist breaks, it will easily come out because the penetrating part itself has no holding power, and the penetrating part of the thread will also easily shift, which has the disadvantage of easily causing so-called misalignment. .

(Object of the Invention) The present invention was made to eliminate these drawbacks, and the purpose is to provide the penetrating portion itself with a holding force so that the mesh does not shift even when a load is applied to the mesh, as in the case of a membrane mesh. The aim is to provide a four-line knotless fishing net that prevents this from occurring.

(Structure of the Invention) The present invention, which has been made to achieve the above object, provides a knotless fishing net in which a mesh is constructed by crossing two twisted strings to form four through-holes. This is a tieless fishing net characterized by the fact that each of the two adjacent strands of a real twisted string are passed through each other, so that the mesh does not become misaligned even when a large load is applied to the mesh.
Also, by making the penetration span across two strands, each string has a total half-turn twist with respect to each other, which fixes the penetration, and in addition to the above-mentioned load-resistant deviation,
Even if the book string breaks, it will not come out of the penetrating portion, and the net itself will not be caught.

(Example) The present invention will now be described in more detail based on illustrated embodiments.

First, in the embodiment shown in FIGS. 1 and 2, four two-stranded strings 1.2 coming from one side and two two-stranded strings 3.4 coming from the other side pass through the penetration part 10. This penetration does not simply cross, but connects each two adjacent strands of the two wood twisted strings coming from different directions, that is, the strands 6 and 7 formed by the strings '1 and 2, and the strands 1 - The feature lies in that the twists 8 and 9 formed by the ring 3.4 penetrate through the phase n to form the through portion 10.

The twisting of the penetrating portion when the two twists interpenetrate is clearly visible when the net is knitted, and this state is shown in an enlarged view in FIG. 2. As is clear from the figure, when two adjacent twists formed by strings 1, 2, and 3, 4 are passed through each other, a gap occurs at the penetrating portion 10. -Ring 1.3 and string 2
.

In other words, string 1.3 has a half-turn twist, and at the same time string 2.4 has a half-turn twist,
Those with these twists are further twisted half a turn as a whole, and even if there are four penetrations, it is fixed by the mutual half turn and the overall half turn twist. Become.

To explain this four-penetration state in detail with reference to the exploded view of FIG. The figure-eight loops of the adjacent strands 8.9 formed by the other two-stranded string 3.4 are passed through the loops so as to cross each other. and,
At the same time as this cross, each of the two wood twisted strings is twisted individually, so each one of the crossed strings is
Strings 1 and 3 of books and string 2 of the other one tree,
4 each have a half-turn twist, and these half-turn twists are further given a half-turn twist as a whole, so that the twist itself becomes as shown in Figure 2. It becomes a penetrating structure with a fixed function.

In this way, since the penetrating part 10 has a structure in which each string has a mutual half-turn twist and a total half-turn twist, even if a load such as a split is applied to the mesh, that is, the penetrating part, the strings can be twisted in different directions. Of the string that came from? Since there is an l-rotation twist, there is no room for misalignment between the slings and no misalignment occurs. Also, by twisting with a total half-turn, all the strings passing through the penetration part are wrapped around each other, and the penetration part itself has a fixing function, so even if one string breaks, it will not be twisted. The broken sling I-ring cannot be easily pulled out from the penetration part 10, and [
Because a single cut does not cause infection, a stable web formation can be maintained.

(Effects of the Invention) As explained above, the knotless fishing net according to the present invention has two strands of slings coming from different directions, each adjacent to the other.
Because it has a structure that straddles two strands and penetrates each other,
Even if a load such as splitting is applied to the penetrating portion, there is no deviation of the penetrating portion, that is, no misalignment at all, which is an excellent effect. Furthermore, since the strings that have a half-turn twist to each other in the penetration part are further connected to other strings that have a half-turn twist, all the strings have a half-turn twist as a whole. By holding each other together, even if one string breaks, it will not come out from the penetration part, which is an excellent effect.

[Brief explanation of the drawing]

Figure 1: is an exploded schematic diagram showing only the penetration part of the knotless fishing net according to the present invention, Figure 2 is an enlarged plan view of the knitted state of the knotless fishing net, and Figure 3 is an artificial example with four penetration parts. FIG. 4 is an exploded schematic view of a part of the knotless fishing net, and FIG. 4 is an enlarged plan view showing only the penetrating portion of the conventional knotless fishing net in a knitted state. 1 to 4...Two-strand string 6 to 9...Twist number 10...Penetrating portion Patent applicant Hakodate Seimei Shipgu Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] In a knotless fishing net in which a mesh is constructed by crossing two-stranded strings and forming four through-holes, two-stranded strings coming from different directions are mutually straddled across two adjacent strands. A tieless fishing net characterized by having a penetrating net.