JPS6245027Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a knotted structure of the mesh that prevents eye misalignment.

Conventional single or double knots or double knots have the disadvantage of causing misalignment during use, and in recent years many knots with a special structure in which the intertwining of the warp and weft is more complex than single or double knots have been used. However, when the intertwining of the warp and weft yarns becomes complicated within the knot, the mesh threads form sharp bending angles, and when tension is applied to the mesh threads, they tend to break, making it impossible to expect high hooking strength. Furthermore, due to the increased number of crossings between the mesh yarns, frictional force is generated between the mesh yarns, making it difficult to perform sufficient tightening. Furthermore, depending on the degree of entanglement of the threads, the net legs may not open in an orderly manner in all directions from the knots, so an excessive heat treatment must be performed to orient the net legs.

In order to solve these drawbacks, the present invention arranges warp loops and weft loops in parallel with each other so that there is no entanglement between them. This is a knot in which the warp is wrapped around the warp on the other side three-quarters of the way, the warp is pulled out from both the warp loop and the weft loop with the front hook, and the weft is passed through and tightened, so that the net legs are on the same plane. The object of the present invention is to provide a knot structure that is easy to spread in all directions at the top and has high slip-off strength and hook-up strength.

Next, we will discuss the nodular structure of the net according to this invention, but first we will explain the device for manufacturing the nodules.
Referring to FIG. 1, reference numeral 1 denotes a rotatable upper hook, and the upper hook 1 is configured to be able to move back and forth in order to remove a loop formed therein. Reference numeral 2 indicates warp threads on the swinging side, which are wound around a bobbin and hung on creel pins (not shown). 3 is a thread swinger for moving the warp up and down, left and right, and front and back; 2' is the warp on the already knotted side; 4 is the weft, which is not shown but is housed in the hull support. It is wrapped around a boat-shaped coin. 4' is the already knotted weft, 5 is a lifting plate for lifting the weft 4 upward, and 6 is a front hook for pulling out the warp 2 through a loop formed in the upper hook.

The knotting method performed using this device is as follows. The steps will be explained below in the order of steps based on FIGS. 1 to 19.

<First step> Turn the upper hook 1 a quarter turn in the direction of the arrow as shown in FIG. 1 to make it as shown in FIG. 2.

<Second step> Raise the spool 3 as shown in Figure 3, then turn the upper hook 1 by half a turn in the opposite direction as shown in Figures 4 and 5, and raise the spool 3 as shown in Figure 5. It is lowered and the warp threads 2 are hooked onto the upper hook 1.

<Third step> As shown in Figures 6 and 7, turn the upper hook 1 by half a turn in the same direction as in the second step, and turn the thread swinger 3 as shown in Figure 7.
Raise it again, keep it raised as shown in Figure 8, turn the upper hook 1 by a half turn in the same direction, lower the thread swinger 3 as shown in Figure 9, and wind the warp threads 2 around the upper hook 1. Multiply.

<Fourth step> As shown in Figures 10 and 11, turn the upper hook 1 by half a turn in the same direction as in the second step, and then turn the upper hook 1 in the same direction as in the second step.
Raise the lifting plate 5 as shown below.

<Fifth step> With the lifting plate 5 raised as shown in FIG. 12, the upper hook 1 is rotated by half in the same direction as in the first step, and the weft thread 4 is placed in the upper hook as shown in FIG. 13. 1 warp 2
from the opposite side and lower the lifting plate 5 to remove the weft 4.
is hung on the upper hook 1 and the thread swinger 3 is raised.

<Sixth step> Turn the upper hook 1 by half a turn in the same direction as in the first step, pass the weft 4 under the warp 2 on the swinger 3 side as shown in Figures 14 and 15, and then turn the upper hook 1 from the upper hook 1. After removing the warp threads 2 on the swinger 3 side, the swinger 3 is lowered.

<Seventh Step> As shown in FIGS. 16 to 18, the upper hook 1 is rotated five quarters in the same direction as the second step.

<Eighth Step> As shown in FIGS. 19 and 20, the warp threads 2 are hooked onto the front hook 6 from the left side when viewed from the operating side, and the loops 2l of the warp threads 2 and the loops 4 of the weft threads 4 are formed on the upper hook 1.
l Pull out the warp thread 2 from inside ₁ and pass it through the weft thread 4.

<9th step> Remove the upper hook 1 from the loops 4l ₁ and 2l and remove the warp threads 2,
2' and weft threads 4 and 4' to tighten.

Figure 2 shows the state in which the knots formed through all the above steps are loosened, and 2l is the warp threads 21 to 2.
It is a warp loop having one intersection 2c formed by 2, the warp 21 is connected to the warp 2 on the swinging side, the warp 22 is connected to the warp 2' on the already knotted side, 2, 21, 22 , 2' is one continuous warp thread. 4l ₁ is 1 formed by wefts 41-42
It is a weft loop having a cross section 4c, and the weft 4
1 is connected to the weft 4 on the bunsen side, weft 42 is connected to the weft 4' on the already knotted side, 4, 41, 4
2 and 4' are one continuous weft. _4l2 is a curve created when the warp thread 2 passes through both the warp loop 2l and the weft thread loop _4l1 , is hooked on the front hook 6 and pulled out, passes through the weft thread 4 on the bunsen side, and the warp thread 2 returns to its original position. Department. 2p ₀ , 2p ₁ , 2p ₂ are positions indicating the number of turns of warp thread 2 to form coil A by winding it three-half times, and coil A starts from point 2p 0 and continues from 2p ₀ to 2p ₀ .
Winding is performed at 3/2 turns from 2p ₁ to 2p ₂ .

Figure 3 is a front and side view of the nodule viewed from the front, and Figure 4 is a back and side view, showing that the net legs are open in all directions within the same plane.

FIG. 4 shows the process progressing from the 1st process to the 7th process, and in the 8th process, the warp threads are hooked onto the front hook 6 from the right side when viewed from the side where the warp is being operated, forming the upper hook 1. warp and weft loops 2l and 4
₁ is a diagram showing a state in which the knot is loosened after the warp thread 2 is pulled out from inside the thread 1 and passed through the weft thread 4, and then the knot is completed through the <9th step>. The condition of the tightened knot in this case is similar to that shown in FIG.

As mentioned above, according to the knotted structure of the mesh according to this invention, the warp loop 2l having one intersection 2c
The weft loops 4l ₁ having one intersection 4c are arranged in parallel with each other without intertwining, and one of the warp threads 22 on one side forming the warp loop and one on both sides forming the weft loop. Since there is no twist between the two weft yarns 41 and 42, the warp loop 2l is created by pulling the warp yarn 2' and the weft yarn 4' when tightening the stitches.
And it becomes possible to smoothly tighten the weft loop _4l1 . In addition, the warp 22 constituting the warp loop 2l
and the weft threads 41 on both sides forming a weft loop 4l ₁
Due to the presence of the coil A, in which the warp threads 2 are wound three-half turns around the warp threads 2p ₀ → 2p ₁ → 2p ₂ , the warp threads 22 and the weft threads 41, 4 are tightened.
2 are tightened, and by tightening the weft yarns 4, the warp yarns 2 are also tightened by the weft yarns of the curved portion _4l2 . Especially the warp 22→2' and the weft 42→
4' helps to prevent unnecessary entanglement and to effectively exert the tightening force. Moreover, warp 2
The fact that the tube is wound three-quarters of a turn at points 2p ₀ → 2p ₁ → 2p ₂ firmly prevents the knot from loosening and strengthens the strength of the slippage. In other words, the tightening force is strong and there is no misalignment, the hooking force is large, the net threads coming out of the knots are in the same plane and can be spread out in all directions, and the directionality of the net legs can be changed by heat treatment. It does not need to be attached, has excellent opening during operation, and greatly contributes to improving coverage rate.

[Brief explanation of the drawing]

Figure 1 is a process diagram of the method for obtaining the knotted structure of the net according to this invention, Figure 2 is a diagram with the knot loosened, Figure 3 A is a front view of the knotted mesh according to this invention, and B is the right side. FIG. 4 is a front view, C is a rear view, D is a left side view, and FIG. 4 is a view of another example with the knot loosened. 1... upper hook, 2, 2', 21, 22... warp,
3... Thread swing, 4, 4', 41, 42... Weft,
5... Lifting plate, 6... Front hook, 2l... Warp loop, 4l, 4l ₁ ... Weft loop, 2c, 4c...
Crossover, 4l ₂ ...Curved part.

Claims (1)

[Scope of utility model claims] The warp loop formed by crossing the warp once and the weft are 1
The weft loops that are crossed are arranged in parallel with each other without any entanglement, and there are a total of three threads, one warp on one side forming the warp loop and two weft threads on both sides forming the weft loop. There is no twist in the knot, and the warp on the warp side wraps around these three threads three-half times, and the weft on the bunsen side, which passes through both the warp loop and the weft loop, bends back. The knotted structure of the net is characterized by the warp threads passing through the inside of the curved part.