JPS6088160A - Knotless fishing net and its knitting method - 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 (Field of Industrial Application) The present invention relates to a knotless fishing net used as a purse seine, etc., and particularly relates to a knotless fishing net with two twists and four penetrating wires, and a method for knitting the fishing net. be.

(Prior Art) Generally, in this type of knotless fishing net, the net is continuously knitted from the body part to the edge, and in order to form a mesh, the intersecting parts of two strands are passed through each other, It is designed to engage in a so-called four-through type. This four-penetration type of fastening has the same fastening structure not only at the body net but also at the edges.

When a net fabric with such a structure is used, for example, as a purse seine, the purse seine is made by sewing together multiple threads of fabric, and the edges are used for the stitching part of the net fabrics and the part for tying them to the rope. be done.

However, the edge of conventional knotless fishing nets, like the body net, becomes a twisted part immediately from the penetrating part of the strands, so when a large force is applied to the edge, the penetrating part pushes away the twisted part and adjoins. The legs of the net begin to move to the side, and the mesh near the edge becomes uneven, causing fishing to be carried out, which not only reduces the performance of the fishing gear, but also weakens the strands as they rub against each other, causing the net to break. It has become. Therefore, it is generally necessary to use slightly thicker strands to reinforce the edges and splint them so that the penetrating portions do not shift. This attachment has to be done manually and tied to the edges, which has the drawback of requiring a great deal of time and effort.

(Object of the Invention) The present invention has been made in order to eliminate the drawbacks of the conventional example described above, and its purpose is to greatly improve the strength of the edge and to improve the intersection of the portions forming the edge. The object of the present invention is to provide a knotless fishing net in which no displacement occurs in the penetrating portion, and a method for knitting the fishing net.

(Structure of the Invention) The present invention, which was made to achieve this object, provides a four-penetration knotless fishing net in which two IJ rings are twisted.
The net yarn that has reached the edge is meandered twice, and during the meandering, the valley net yarn forms three six-penetration portions and two first-stitch intermediate crossing portions, so that the edge portion is substantially A knotless fishing net characterized by being formed of two net threads, the edge being formed by two of the net threads.
Not only does the intertwining of the strings become strong because six threads pass through the windings, but the edges are formed with two mesh threads, so there is no need to attach extra strands. It has excellent strength. Further, in the method of knitting a fishing net, a knotless fishing net is provided, characterized in that four strings of two net threads are crossed with each other before and after forming the six penetration parts to form a double-cross part. Knitting method and 6
The method of inserting a slight twist between the main penetration part and the double cross part, and the method of creating multiple threads when forming the six penetration parts) IJ
This is a knitting method in which a clutch is used to perform the process of waiting for the twisting, and the process of restoring rotation and twisting by the amount of waiting after the formation of the six-penetration part. By providing a double cross section and a slight twist, it will not shift even if an external force is applied to the 6-penetration section, making it stable.
By waiting for the J-ring, a complicated intertwining can be formed, which also causes misalignment of the six through-holes and makes them hang.

(Example) Next, the present invention will be explained in more detail based on the illustrated example. 5-1 4- To explain, the net 11 shown in FIG. This is a knotless fishing net with four penetrating nets, which are knitted in the direction of arrow a. In this knotless fishing net, the part numbered 12 is the body net part, and 1
3 is the edge. In forming this edge part 13, for example, the net threads 1.4, 15, 1 knitted from the body net part 12
．． 6 is sequentially braided with the net threads 17 and 1.8 that have reached the edge 13 first to form an edge, and then U-turned again to the side of the body net 12 to form a body net. In this case, the net yarn that has reached the edge meander twice, forming a double edge and forming a trick at the edge, and six net yarns are formed between it and the body net portion 12. It becomes a penetration and a mesh is formed. In other words, the mesh threads 1.7, . 18 and the mesh thread 14 that reaches the edge from behind are braided together, six threads pass through the braid, and the mesh thread 17, which reached the edge first, passes through the six threads to the body mesh part 12 side. Make a U-turn. and two net threads 1.
4 and 18 form an edge, and then a six-penetration braid is made between the net yarns 15 that reach the edge, and the net yarns 18 form the body net portion 1.
A U-turn is made to the 2nd side, and the edges are formed in the same way thereafter.

-A- The two meanderings at the edge of the mesh yarn create a double structure at the edge, but the mesh yarn that reaches the edge from behind at the six-penetration part is located on the outside of the double structure, At the top of the early stage, it reaches the edge first, crosses with the tomoami thread, enters the inside, becomes intertwined at the 6-piercing part, and further meandering towards the edge, goes outside at the cross at the top, and then enters the 6-strand thread. It exits to the side of the body net part 12 through. The double-layered mesh yarns at the edges cross each other at the top where the fast stitches are formed, that is, at the position corresponding to the four-penetrating portion of the mesh formation in the body netting section 12. The strings are intertwined so that they penetrate each other and do not separate.

The four penetrating portions of the body net portion 12 are as shown in FIG.
The mesh yarn 15 and the mesh yarn J7 are each formed by twisting two strings, and the intersecting portions of these strings penetrate each other to form a mesh, and are braided. A known penetrating braiding method can be used as is.

As shown in FIG. 3, the cross portion at the top of the edge 13 is such that when the two-twisted mesh yarn 14 and the mesh yarn 15 cross, each one string passes through the outer mesh. The thread 15 goes inside, and the inside mesh thread 14 goes outside. By crossing in this way, both the mesh yarns 1.4 and 15 are no longer separated even at the top where the fastening is formed.

The six penetrating portions constituting the edge 13 are different from the fourth in the first embodiment.
As shown in the figure. This 6-wire penetrating part has 3 mesh threads 14
, 15, 1.6, and is not a simple piercing, but a complicated intertwining to prevent the stitches from shifting. This entanglement is caused by the fact that the string 1゜2 of the mesh thread 14 and the strings 3 and 4 of the mesh thread 15 form a double cross section between them just before they penetrate six threads, and the four threads are connected together. Next, after forming a slight twisted part C, the IJ rings 5 and 6 are brought together to form a six-penetration part d, and the mesh thread 14 is They are taken out to the side of the net 11 to knit a body net as they are, and the net yarns 5 and 16 are taken out to the side of the edge 13 where the fastening is to be formed. Immediately after the six threads exit from the penetration part d, a predetermined twist part e is formed, and then the mesh thread 16 goes outside through the double cross part f, and the mesh thread 15 enters the inside to form a predetermined twist. added to form a thread foot.

In the second embodiment shown in FIG. 5, the twisting portion C2θ of the first embodiment is omitted, and the other parts are the same, so the same reference numerals are given and the explanation will be given.

Before the six mesh threads 14 and 15 pass through, the strings 1 to 4 of both mesh threads form a double cross section, and immediately from the double cross section, the strings 5 and 6 of the mesh thread 16 are entwined to form a 6
The main penetration part d is formed, the net yarn 14 is taken out to the side of the body net 11 to knit the body net, and the net yarn 15 and the net yarn 16 are taken out to the side forming the fastening of the edge 13 and taken out. Immediately after the double cross section f is formed, a predetermined twist is applied to each of the mesh yarns 15 and 1.6 to form yarn legs. In any of the embodiments, double cross portions (i) and (f) are formed before and after the six through portions (d) so that the six through portions (d) do not shift.

The knitting method of the first embodiment will be explained with reference to FIG. 6, which is a schematic plan view showing one running state of the twisting weight wheel and the braiding weight wheel. In the figure, numeral 21 is a twisting weight wheel, and 22 is a grouping weight wheel. These two spindle wheels are arranged alternately in the longitudinal direction, and only one row forming the edge 13 is shown in operation. That is, the strings 1 and 2 of the mesh thread 14 and the mesh thread 15
After the strings 3 and 4 have twisted the mesh legs of the edge 13 to a predetermined length by the respective twisting weight wheels 21, the process of double crossing shown in FIG. 4 begins. At this time, both net threads 14
The upper spinning weight ring 22 located between , and 15 sequentially receives the string 4°3 of the net thread 15 from the twisting weight ring 21, and receives the IJ song received first into the upper twisting weight ring 21 as it is. As you pass it, pull the net thread 14 from the twisting weight ring at the top) IJ
In the upper twisting weight wheel 21, strings 2 and 4 are entangled with one twist, and in the second part of the twisting weight wheel 22, strings 1 and 3 are entangled with one twist, and both silk threads 14 are twisted. , 15 strings cross each other, return string 1 from the group weight ring 22 to the upper twist weight ring, and return the IJ song and 4 to the center twist weight ring. Finish the double cross process. Next, the strings 1 and 2 of the net yarn 14 and the strings 3 and 4 of the net yarn 15 are twisted approximately once each by the twisting weight wheels in the upper and central portions, and then the six strings reach the penetration portion d. During this time, the IJ song 6 is twisted by the twisting weight ring 21 at the bottom to knit the net part 2 which reaches the edge 13.

When reaching the 6-wire penetration part d, the clutches of the uppermost twisting weight ring and the lowermost twisting weight ring are released, and the strings 2 and 5 are allowed to wait while preventing rotation from being transmitted. String 1 is delivered to the center twisting weight via the upper grouping weight, and the IJ song at the bottom is transferred to the center twisting weight via the center grouping weight. is,
There are a total of 4 strings on the twisting weight ring in the center], ,
3, 4, and 6 will be collected. At this point, the clutch engages and the upper and lower twisting weight wheels also begin to rotate. Then, the screw left on the upper twisting weight ring) IJ ring 2
is transferred to the upper group-un weight, and also from the central group-un weight. (Two Sus on the second group-un weight) IJ song, 6
is delivered. At the same time, the s that remained on the lower twisting weight ring)
The IJ song is delivered to the grouping weight in the center, and two strings 1 and 4 are also delivered from the twisting weight in the center. During this period, the rotation of the upper and lower twisting weight wheels is half a rotation,
The pairing weight wheels at the top and center and the twisting weight wheels at the center rotate by η.

Subsequently, strings 3 and 6 are transferred to the upper twisting weight ring by 3/4 rotation of each ring, and the strings 3 and 6 are transferred to the twisting weight ring in the center.
Rings 2 and 5 are transferred, and the lower twisting weight ring is
Tongue and 4 are delivered respectively. In this state, remove the clutches of the upper and lower twisting weight wheels again and set string 3 to IJ-.
, 6 , ], , 4 are waited, and the upper and center group weight wheels turn 1/4 turn to separate from the center twist weight wheel respectively)
Receive the IJ song, 2, and at this point engage the clutch and rotate all the spindle wheels to deliver strings 5 and 2 to the upper and lower twisting weight wheels, respectively, and in the next 1/4 turn, turn the upper twisting spindle. Receive the IJ song from the weight ring, and also receive the IJ song 4 from the lower twisting weight ring, and deliver both strings 3 and 4 to the twisting weight ring in the center. When this step is completed, six through-holes d are formed.

Further, each string emerging from the six through holes forms a twisting portion e of one turn by the upper, middle, and lower twisting weight wheels.

In this case, in order to recover the expected one-rotation delay caused by the clutch operation twice before and after the six-strand penetration described above, the clutch is switched to the side where the gear ratio is doubled, and the normal body is used. For each rotation of knitting the net, two rotations are performed, and the number of twisted portions e is increased by the amount of the delay. Then, after the six strings of the net yarn 14 located in the lower twisting weight ring are passed through, the string is U
Turn.

String 3 of mesh thread 5, which had reached the edge along with strings 5 and 6 of mesh thread 16, which had already reached the edge and finished penetrating six threads.
, 4 in the next step, the double cross part f
The twisting weight ring at the top and the twisting weight ring at the center perform the net twisting process. In this case, since the double cross section f is of a penetrating type, the intertwining state is somewhat different from that of the double cross section, but the double cross process is the same. After a predetermined twisting of the net, the first stitch intermediate crossing process as shown in FIG. 3 begins. The net twist in this case varies depending on the mesh of the mesh to be manufactured, and can be changed as desired.

The first intermediate cross first receives the string 3 of the netting thread 15 located in the center twisting weight ring at the upper spinning weight ring, passes it to the upper twisting weight ring, and at the same time receives the string 3 of the mesh yarn 15 from the upper twisting weight ring. The string 4 is received between the strings 5 and 6, and the string 4 is inserted between the strings 5 and 6 by passing the string 4 to the two-part twisting weight wheel, thereby forming a first-stitch intermediate cross section. and,
16 net threads from the upper grouping weight ring to the center twisting weight ring)
IJ song.

6 is delivered. The position where this intermediate intersecting part is formed coincides with the intersecting part of the net, and a predetermined twisting of the net is further performed from this intersecting part. Also, at the point at which this crossing part is completed, the modified mesh threads are positioned on the lower twisting weight ring for the next six penetrations, and an edge part 3 is formed in the same way.

The braiding method of the second embodiment shown in FIG. 5 is different from that of the first embodiment in that there is no twisting section before and after the six-penetration section d, and double cross sections S and F are immediately formed. They differ only in one point. Therefore, the process is shown in FIG. 7, and the same parts as in the first embodiment are given the same reference numerals to simplify the explanation.

That is, in the second embodiment, the strings 1, 2, 3.4 of the net yarn 14 and the net yarn 15 form a double cross portion f after twisting the net legs, and after forming the double cross portion, the upper part and Remove the clutch of the lower twisting weight wheel to free it and string 2,
Wait for 5, then collect the four (4), 3, 4. Then, the 6-hole penetration process is proceeded, and after passing through the process of releasing the clutch once again in the middle, the 6-hole penetration process is completed in the same way as in the first embodiment. At the end of this process, the clutch is switched to the side where the gear ratio is doubled, the twisting that was delayed during the six-strand penetration process is recovered, and the clutch is returned to its original position.

After forming the six through parts d, the double cross part f is formed again.
, then perform a predetermined mesh thread twist, perform the first stitch intermediate crossing, further perform mesh thread twisting, and mesh thread 14.
It is the same as in the first embodiment that the strings 1 and 2 make a U-turn toward the body net side.

Regarding the clutch operation part described above, see Figures 8 and 9.
To explain based on the figure, two idler gears 24 and 25 are provided on the shaft 23 of the twisting weight wheel 21 on which the clutch is to be operated, and a clutch 26 is provided between the two idler gears, and the clutch 26 is operated. The arm 27 is configured to be able to selectively engage either of the floating gears 24 and 25 from the neutral position. The assembly weight wheel 22 is provided with fixed gears 29 and 30 on its shaft that mesh with the floating gear 24.5, respectively, and the rotation of the shaft portion of the assembly weight wheel rotates the twisting weight wheel via the fixed gear. It will be rotated. A fixed gear 31 is attached to the shaft 23 of the twisting weight wheel, which does not require any clutch operation, and the fixed gear 29 of the twisting weight wheel is
It's a combination. (Symbol 32fd in the figure) This is what is called a weight or gun with an IJ song stored in it.

In this clutch operation, the clutch 26
4, the rotation transmitted from the shaft of the twisting weight wheel 22 is transmitted from the fixed gear 29 to the shaft 23 of the twisting weight wheel 21 via the floating gear 24 and clutch 26, If the gear ratios of the gear 24 and the fixed gear 29 are set to be the same, the assembly weight wheel 22 and the twisting weight wheel 21 are synchronized and rotate at the same number of rotations. From this state, when the clutch 26 is lowered to the neutral position and disconnected from the floating gear U, the floating gear 24 idles and the twisting weight ring 21 no longer rotates. This state is the state in which the clutch in the six-piece penetration process is released.

Next, when the clutch 26 is engaged with the floating gear 5 side, the shaft 23 of the twisting weight wheel is driven through the clutch from the floating gear 5 meshing with the fixed gear 30 of the assembly weight wheel, causing a predetermined rotation. I do. In this case, by setting the gear ratio between the floating gear 5 and the fixed gear 30 to be 1=2, the floating gear 5 rotates twice while the fixed gear 30 rotates once. By changing the gear ratio in this way, the twisting weight wheel 21 can be rotated quickly,
The rotation and twisting delayed in the 6-strand penetration process is recovered. Then, by this rotation and untwisting, the length of the fishnet part becomes the same as the net length, making it impossible to drag the fish and improving the net formation.

(Effects of the Invention) As explained above, the knotless fishing net according to the present invention is a knotless fishing net with four penetrating threads twisted with two IJ songs, and the knotless fishing net that has reached the edge is By meandering twice, the edges are
Sufficient strength can be obtained without adding extra strings (17-16-) due to heavy formation, and the formation of three six-penetration sections prevents misalignment at the edges. It has a great effect.

Furthermore, in the knotless fishing net knitting method according to the present invention,
By meandering the mesh thread that has reached the edge twice and forming a 6-penetration part three times, and forming a double cross part or a slight twist part before and after the 6-penetration part, the 6-penetration part can be made. There is no misalignment, and as a result, even if an external force is applied, the fishing net will not be dragged and the net formation will always be maintained in a good condition, which is an excellent effect.

Furthermore, complex entanglements can be formed by waiting for multiple IJ songs in six penetrations, and it is also possible to recover the rotation and twist delayed by waiting after forming complex entanglements. There is also the excellent effect that there is no length or shortness of the mesh legs at the edges, and a knotless intersection can be formed without misalignment.

[Brief explanation of the drawing]

Fig. 1 is a plan view schematically showing a part of a knotless fishing net with two twists and four penetrating rods according to the present invention, and Fig. 2 IQ - is an enlarged view of the part indicated by ■ in Fig. 1. , FIG. 3 is an enlarged view showing the intertwined parts of the part indicated by ■ in FIG. FIG. 5 is an enlarged view of the second embodiment of the same part as FIG. 4, and FIG. Fig. 7 is a diagram of the operation of the twisting weight wheel and the grouping weight wheel, which schematically shows the main part of the process of knitting the fishing net of the second embodiment. ,
FIG. 8 is a schematic perspective view of a clutch portion used in the knitting method of the present invention, and FIG. 9 is a sectional view showing a part of the clutch portion. 1 to 6... String] 1... Knotless fishing net 12... Body net portion 13... Edge portion 14 to I8... Net Thread 21... Twisting weight wheel 22... Grouping weight wheel O, 28... Shaft 24.25... Idle cam 26... Clutch 27...Operating levers 29, 30, 31...Fixed gear 32...
... Weight or gun patent applicant Hakodate Net Shipment Co., Ltd. ζtsuho n Figure 6

Claims (4)

[Claims] (1) In a knotless fishing net with four threads twisted between two strings, the thread that has reached the edge is meandered twice, and during this meandering, each thread has three six-penetration points. A knotless fishing net characterized in that it forms two intermediate intersecting parts, and the edge is substantially formed of two silk threads. (2) In the method of manufacturing a knotless fishing net with four penetrating strings twisted with two strings, the net thread that has reached the edge is meandered twice, and during the meandering, each thread is At the same time as forming the main penetration part, the first intersecting part is formed twice, and the edge is formed of two mesh threads, and four strings of two mesh threads are formed before and after the formation of the six penetration parts. A knotless fishing net knitting method characterized in that double cross sections are formed by crossing each other. (3) The method for knitting a knotless fishing net according to item (2) above, characterized in that a slight twist is inserted between the six-penetration portion and the double-cross portion. (4) In the method for manufacturing a knotless fishing net with four penetrating strings twisted, the net thread that has reached the edge is meandered twice, and during the meandering, each thread is twisted three times. At the same time as forming the main penetration part, the first intersecting part is formed twice, and the edge is formed of two mesh threads, and four strips of two mesh threads are formed before and after the formation of the six penetration parts. ) Crossing the IJ songs mutually to form a double cross part, waiting for a plurality of strings when forming the six-through parts, and rotating and twisting by the amount of waiting after forming the six-through parts. A knotless fishing net knitting method characterized in that the steps of retrieving and retrieving are carried out using a clutch.