JPS6130060B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is characterized in that the thickness of the knotted part is made smaller than the diameter of the net leg, so that when this net is used as a fishing gear, for example, when the net is used as a fishing gear, the fish caught and the knotted part are separated. This invention relates to a method of braiding a knotless braided net in which damage to the knotted parts is suppressed by reducing friction between the parts.

<Prior Art> Conventionally known methods for braiding the knots of a knotted network of braided cords include, for example, the following methods.
In other words, it is as shown in Patent Application Publication No. 147272 of 1982, and when shown here, Figure 1 shows notches for transferring strands at positions divided into four equal parts on the circumference. 3 having one each
The spindle wheels are arranged in a straight line as normal rotation wheel P ₁ → reverse rotation wheel M ₁ → normal rotation wheel P ₂ , and two strands having a phase of 90° to each other are paired. A pair of strands a, b is attached to the normal rotation wheel P ₁ on both sides of the reverse rotation wheel M 1 so that the phase between the pair of strands a, b, c, and d is 90°, and the pair of strands a, b is attached to the normal rotation wheel P ₁ on both sides of the reverse rotation wheel M ₁ . This is a braided unit of net legs in which another pair of strands c and d are arranged. Figure 2 shows four strands a,
This shows that the net legs are braided in 12 steps b, c, and d, and this step is repeated as many times as necessary depending on the length of the net legs. Figure 3 shows the braid unit A of the net leg in the upper stage, and the three spindle wheels each having one notch for transferring the strands at positions divided into four equal parts on the circumference, and the normal rotation wheel P. ₃ → Reverse rotation wheel M ₂ → Forward rotation wheel _P The phase between the pair is 90
Normal rotation wheels on both sides sandwiching reverse rotation wheel M ₂ so that
A pair of strands e, f are placed on P ₃ , and another pair of strands g, h are placed on another normal wheel _P4 .
Connect wheels M ₃ and M ₄ between P ₁ and P ₃ and between P ₂ and P ₄ P ₁ →M ₁ →
They are arranged so as to be perpendicular to the P ₂ direction and the P ₃ →M ₂ →P ₄ direction, respectively, and this is defined as the braid unit α of the knot. Thus, the eight spindles are arranged in a square shape as a whole, and the phase between the pairs of opposing strands on the three spindles aligned in a straight line is 90°, and the phase between the opposing strands on the spindle is 90°, There is a 180° phase between opposing pairs of strands. Figure 4 shows that each of the four strands a, b, c, d, e, f, g, and h of the net leg braid units A and B, which are the constituent elements of the braided unit α of the knot, are assembled into the net leg in 12 steps. Indicates braiding. Figure 5 shows that after braiding the net legs, the strands a and b on the left and the reversing wheel M ₂ on the bottom of the lower net leg braiding unit center around the reversing wheel M1 on the upper net leg braiding unit _A.
The left strand pair e and f centered on
In addition, pairs c and d of the strands on the right centering on the reversal wheel _M1 of the braid unit of the upper net leg, and pairs g and h of the strands on the right side centering on the reversal wheel _M2 on the opening of the lower braid unit. In the process, they are crossed to form a single braided knot. In other words, the set joint formed by the part C on the left surrounded by the dotted line in Figure 5 and the set joint formed by the part 2 surrounded by the dotted line on the right side overlap on the left and right to form one set joint. . Fig. 6 is a diagram schematically showing the outline of the knots formed by the method shown in Fig. 5. A', B' are strands a, b, c, d, e, f, g,
H is the braided net leg, C' is strand a, b,
The braided knots are braided with e and f, d' is the strand c,
The knit knots d, g, and h are braided, and α' is a knit knot that integrates c' and d', and the thickness of the knit knots is approximately equal to the diameter of the net leg.

<Problems to be Solved by the Invention> In other words, in the conventional example, the thickness of the joints is approximately equal to the diameter of the net leg, so when used for the knotted end of a bottom trawl net as fishing gear, for example, this The drawback was that the caught fish and the knotted end of the tangled end rubbed against each other, causing premature damage to the knotted end.

<Means for Solving the Problems> Therefore, the method of braiding the knots of the braided knotless net according to the present invention has one notch at each of the four equal positions on the circumference for transferring the bobbin. Three weight rings are arranged in a straight line, and the weight rings at both ends have 180
Two pairs of strands with a phase difference of 90° are arranged so that the phase between the pairs is 90° to form a net leg unit, and the braided units of the net legs are arranged one unit at a time above and below. The same spindles as above are used between the spindles at both ends, and the whole is arranged in a square shape, and the pairs of strands on the spindles that face each other in the side direction are 90° phased and diagonally aligned. After arranging the pairs of strands on opposing spindles at a 180° phase and braiding the net leg as a knitting unit, each pair of strands is arranged with a pair of strands at a 90° phase position. After intersecting, the strands cross over the other pair of strands with a 90° phase, and then cross over the other pair of strands on the opposite side, and then cross over the other pair of strands without intersecting each other. When this net is used for a closed end by moving up to the ring and making the thickness of the joints smaller than the diameter of the net legs, the friction between the caught fish and the joints will be reduced. The purpose of this invention is to obtain a net that suppresses damage to the knitted joints.

<Example> Next, an example of the method for braiding the knots of the braided knotless net according to the present invention will be described based on the drawings.
The braiding unit of the net leg and the braiding unit of the braided knot of the present invention are different from those of the conventional example described above, and when braiding the braided knot, a pair of strands and a pair of strands of the braided unit of the mesh leg adjacent to this are used. After intersecting, the former strand intersects with another pair of strands on the braiding unit of the net leg on which the former strand is arranged to braid a knot.

That is, as shown in FIG. 7, after braiding the net legs in the same process as in _FIG . , b and the pair of strands on the left, e and f, centering on the reversing ring M ₂ that constitutes the braiding unit opening of the lower net leg, and also centering on the reversing ring M ₁ that constitutes the braiding unit a of the upper net leg. The pairs c and d of the right strands intersect the pair g and h of the right strands in 12 steps, respectively, centering on the reversing wheel _M2 that constitutes the braiding unit opening of the lower net leg, and then The two pairs of strands a, b, c, and d constituting the braiding unit A pass through the spindle wheels P ₁ and P ₂ and the reversing wheel M ₁ located at the beginning of the braiding of the braided knots, respectively, and then pass through the lower tier. 2 constituting the braided unit opening of the net leg of
The pairs of strands e, f and g, h pass through the spindle wheels P ₃ and P ₄ and the reversal wheel M ₂ , which were located at the start of braiding, and cross each other in steps 13 to 18, respectively, to the opposite side. The knots are braided in steps 1 to 18 in total. Thereafter, in steps 19 to 28, each pair of strands a, b, c, d, e, f, g, and h moves onto diagonally opposing spindle wheels without intersecting each other. In other words, strands a and b are luck wheels.
Strands c and d are from P ₂ to P ₃ , Strands e and f are from P ₁ to P ₄ , Strands g and h are from P ₄ to P ₁ , and strands g and h are Move from fortune wheel P ₃ to fortune wheel P ₂ respectively. Crossing of the strands is accomplished by switching known point valves (not shown). FIG. 8 is a diagram schematically showing that the thickness of the knots braided in FIG. 7 is smaller than the diameter of the net leg, and A', B' are strands a, b, and
Net legs braided with c, d, e, f, g, h, β'
is a set of knots.

<Effects of the Invention> As described above, according to the method for braiding the knots of the braided knotless net according to the present invention, the knots are relatively small, the spread of the net legs in the vertical and horizontal directions is uniform, and the knots are The thickness of the net is smaller than the diameter of the net leg, so when a net with this set of joints is used at the closed end of a bottom trawl net, there is less friction between the caught fish and the joint, which is extremely effective in reducing wear and tear on the joints. .

[Brief explanation of the drawing]

Figures 1 to 6 all show conventional examples, of which Figure 1 is a front view of the braiding unit of the net leg, Figure 2 is a diagram of the braiding process of the net leg, and Figure 3 is a diagram of the braided joint of the net leg. A front view of the braiding unit, Figure 4 is a diagram of the braiding process of the knots,
Figure 5 is a process diagram of braiding knots by crossing the upper net leg braiding unit and the lower net leg braiding unit after braiding the net legs, and Figure 6 shows a model of the completed braided knots. These are explanatory drawings, of which A is a front view and B is an
7 is a cross-sectional view taken along the line X' and is shown as an embodiment of the method for braiding the knots of the knotless braided net according to the present invention. FIG. 8 is an explanatory diagram schematically showing a knitted knot obtained by the present invention; A front view, and B is a sectional view taken along the line YY'. a, b, c, d, e, f, g, h...Strand, _P1 , _P2 , _P3 , _P4 ...Normal wheel, _M1 , _M2 , _M3 ,
M ₄ ... Reversing wheel, A, B... Braiding unit of net leg,
A', B'...net leg, C', d', α', β'...knit knot, α...knit knot unit.

Claims (1)

[Claims] 1 Three spindle wheels each having one notch for transferring the bobbin at four equal positions on the circumference are arranged in a straight line, and the spindle wheels at both ends have a phase difference of 180°. The phase between the pairs of two strands is
Arrange a pair of strands at 90 degrees each to form a braided unit of the net legs, arrange one braided unit of the net legs above and below, and place the same spindle as above between the spindles at both ends. Use one piece at a time and arrange the whole in a square shape, with pairs of strands on the spindle wheel facing each other in the side direction having a 90° phase, and pairs of strands on the weight wheel facing each other in the diagonal direction having a phase of 180°. After each pair of strands is arranged and braided as a braiding unit of knots, each pair of strands is intersected with a pair of strands having a 90° phase with it, and then with another pair of strands having a 90° phase. The strand is characterized in that it crosses over the spindle on the opposite side while intersecting with the strand, and then moves onto the spindle on the diagonal line without intersecting the other pairs of strands. A method of braiding knots of a knotless braided net.