JP3603147B2 - Knotless mesh changeable net - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a knotless mesh-shaped changeable net.
[0002]
[Prior art]
A knotless rhombic mesh as shown in FIG. 5 has conventionally existed. In this type of net, a twist is generally formed on each side 1a, 1b, 1c, 1d of the rhombus 1, and the intersection 2 of each side 1a, 1b, 1c, 1d is a penetrating node. At this time, since the penetrating node does not have a spherical portion such as a nodule, it contributes not to damage an object in contact with the net surface.
[0003]
Here, a general example of forming a square net having no knotted square nets will be described. First, a cylindrical net 3 of a rhomb net as shown in FIG. Next, the peripheral surface of the cylindrical net 3 is cut in a direction along one side of the diamond as shown by an inclined dashed line s1 in the same figure, and as shown by a horizontal dashed line s2 in the same figure. B is cut in the longitudinal direction f1 (or cut in the width direction f2) to form a cutting net 3a as shown in FIG. B. Thereafter, both ends of the cutting net 3a are formed. The triangular portion 3a1 is cut off, and the cut net portion 3a2 remaining after the cut is formed into a square net having a square mesh.
[0004]
[Problems to be solved by the invention]
In the above-described conventional knotless rhombic mesh, since each side 1a, 1b, 1c, 1d of the mesh is inclined with respect to its longitudinal direction f1, when forming a square mesh having a square mesh, However, there is a problem that many portions are cut off in vain.
The present invention has been made to address such a problem, that is, a knotless network in which a waste net is reduced so that a square net having knotless meshes similar to a square mesh can be obtained. It is intended to provide a reconfigurable net.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, in the modifiable net of the present invention, as described in claim 1, adjacent mesh sides in a knotless rhombic mesh are defined as upper and lower sides of a tortoise mesh in the longitudinal direction. A mesh net is formed, a rhombic mesh and a mesh net are mixed, and a rectangular mesh is formed by stretching both in the width direction.
[0006]
This changeable net is manufactured by known means in the same manner as in the case of the conventional knotless net.
In this changeable net, the left and right net legs connecting the upper side and the lower side of the tortoise mesh match the longitudinal direction of the cloth. Therefore, when forming a square net having a mesh similar to a knotless square mesh from the changeable net, the changeable net may be cut in the longitudinal direction and the width direction as necessary to cut the square shape. It is sufficient to form a net, and there is hardly any portion that is cut off needlessly in this cut net.
[0007]
In carrying out the above invention, as described in claim 2, when the mesh side size of the rhombus is set to 1, the left and right mesh leg sizes of the tortoiseshell mesh are formed in a ratio of 0.4 to 3. As a result, a mesh corresponding to most of the existing square meshes can be obtained. In addition, due to the interaction of the tensile force of each side of the rhombus and the tortoise of the cutting net body in the width direction of the cutting net body, a relatively uniform mesh group having a shape similar to a square mesh on the entire mesh surface of the cutting net body. In addition to the above, a group of relatively uniform meshes having a constant shape formed by arbitrarily deforming rhombuses and tortoise can be obtained.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1 to 4 relate to a knot-free mesh-shaped changeable net according to the present invention. FIG. 1 is a front view showing an outline of a weave structure of the mesh, and FIG. 2 is a front view for explaining a comparative dimension of each side. FIGS. 3 and 3 show the deformable net, wherein A is a front view of a plane net having the same width as the square net to be formed from the deformable net, and B is a square net to be formed from the deformable net. FIG. 4 is a front view showing a state in which the mesh is approximated to a square mesh, which is much larger than the body.
[0009]
As shown in these figures, the knotless changeable net 5 according to the present invention is a mixture of rhombuses 1 and tortoiseshells 4.
The form of the rhombic mesh 1 conforms to the mesh of the conventional rhombic mesh, and the tortoise-mesh 4 is formed of the adjacent mesh sides 1a, 1b, 1c, 1d in the conventional knotless rhombic mesh. Of these, 1a and 1b are defined as upper sides, and 1c and 1d are defined as lower sides. The left and right ends of these upper sides 1a and 1b and the corresponding ones of the left and right ends of lower sides 1c and 1d are joined together. Of the nets 4a and 4b.
[0010]
At this time, as shown in FIG. 2, the dimensions of the left and right net legs 4a, 4b are formed at a ratio of 0.4 to 3, where one of the diamond sides 1a, 1b, 1c, 1d is 1. . As a result, meshes corresponding to most existing square meshes can be obtained, and each side 1a, 1b of the rhombus 1 and the tortoise 4 generated by stretching in the width direction of the cut mesh body described later. , 1c and 1d make it possible to obtain a relatively uniform mesh group having a shape similar to a square mesh on the entire mesh surface of the cut mesh body, and the rhombic mesh 1 and the tortoise mesh 4 are optional. Thus, a group of relatively uniform meshes having a uniform shape formed by deformation can be obtained.
[0011]
In order to form the above-described changeable net 5 according to the present invention, for example, the net can be formed by using a known net-making machine used for forming a conventional knotless net. The rhombic sides 1a, 1b, 1c and 1d of the changeable net 5 are inclined with respect to the longitudinal direction f1 in the same manner as in the prior art, while the tortoiseshell 4 has its left and right net legs 4a and 4b It follows the direction f1.
[0012]
In this case, the woven structure of the changeable net 5 according to the present invention is, for example, as follows.
That is, as shown in FIG. 1, in one tortoise shell 4, each of the intersection 2 of the two legs forming the lower sides 1 c and 1 d and the intersection 2 of the two legs forming the upper sides 1 a and 1 b penetrate. A twist is formed on each of the upper and lower sides 1a and 1b and the lower and upper sides 1c and 1d. Then, in the tortoise shells 4 and 4 adjacent to each other on the left and right, at the intersection 2a1 between the left and right net legs 4a and 4b, the left and right continuous lower edges 1c and 1d. Each of the intersections 2a2 between the net legs and the left and right net legs 4a, 4b is formed as a staggered node, and a penetrating node is formed at the center of the length of each net leg 4a, 4b. Between the lower staggered section and the penetrating section at the center of the length of each of the legs 4a, 4b, and the staggered node above each of the legs 4a, 4b, and the respective legs 4a, 4b A twist is formed in each of the portions between the through-type nodes at the center of the length. At this time, since each of the net legs 4a, 4b is a merged portion of the two upper sides 1a, 1b or the lower sides 1c, 1d, the yarn amount is assumed to be the same for the sides 1a, 1b, 1c, 1d. Double that. The deformable net 5 having such a structure is structurally stable, and does not have a spherical portion such as a knot at each node.
[0013]
From the plane net formed as the deformable net 5 according to the present invention obtained as described above, forming a square net having a mesh similar to a square net is performed, for example, as follows. That is, in general, a deformable net 5 having a flat net shape having the same width as that of a square net to be formed is formed, and is formed at a specific position p1 in the longitudinal direction f1 and in the width direction f2 as shown in FIG. To form a rectangular cutting net 5a.
[0014]
Next, one edge m1, m2 (or both edges m1, m2) of the mesh body 5a in the longitudinal direction f1 is pulled in the width direction f2, and as shown in FIG. Alternatively, the lower sides 1c and 1d (or the upper sides 1a and 1b and the lower sides 1c and 1d) are in a state of being linear in the width direction f2 of the cutting net body 5a, and under this state, the tension yarn 6 is pulled by the pulled edge. Sew along the net legs of m1 and m2. In addition, the ends of the mesh legs at the edges m3 and m4 of the tension thread 6 that are not sewn are subjected to an appropriate treatment so that the mesh thread is not unraveled.
[0015]
When the rectangular net formed in this way is used, for example, both ends of the tension string 6 are tied to another object to make the tension state, and the entire cutting net 5a is hung on the tension string 6 in a hanging state. To support. In this state, the weight of the cutting net 5a acts on each of the sides 1a, 1b, 1c, and 1d of the rhombus 1 and the tortoise 4, and the mutual tensile force of each of the sides 1a, 1b, 1c, and 1d. Due to the action, each rhomb 1 is compressed in the vertical dimension L (see FIG. 2) and becomes flat, while each turtle shell 4 has two upper legs 1a and 1b and two lower legs 1c and 1d. The shape approximates to a rectangular mesh as shown in FIG. 4 by approaching a horizontal straight line, and the square mesh in this state can be used in the same manner as a conventional mesh having a square mesh.
[0016]
Further, when forming a square net having a mesh of a constant shape by arbitrarily deforming the rhombic mesh 1 and the tortoise mesh 4 from the deformable mesh 5 according to the present invention, for example, the following is performed. That is, the flat net-like deformable net 5 is cut in the longitudinal direction f1 and the width direction f2 to form a rectangular cut net 5a, and then one end m1 of the net 5a in the longitudinal direction f1. , M2 (or both edges m1, m2) are adjusted to an appropriate length, and the upper side 1a, 1b or the lower side 1c, 1d (or the upper side 1a, 1b and the lower side 1c, 1d) of the tortoiseshell 4 is adjusted. The two net legs intersect at an arbitrary angle formed in the process of becoming linear in the width direction f2 of the cutting net body 5a, and the tension yarn 6 having the width dimension is maintained so as to maintain this state. Attached to the prepared leg of edge m1, m2, and sewed on it. .
[0017]
If the thus formed rectangular net is supported by the tension yarns 6 in the same manner as in the previous use, the tortoise mesh 4 does not come close to a square mesh, but the tension yarn 6 and the cutting net 5a. Is transformed into a fixed shape determined by the relative relationship with
[0018]
Further, when the tension yarn 6 is sewn to both ends m1 and m2 in the longitudinal direction f1 of the cutting net 5a and the two tension yarns 6 and 6 support the cutting net 5a in a tension state, the cutting net 5a is cut. A large number of the tortoise shells 4 of 5a form a mesh having a uniform shape.
[0019]
The deformable net of the present invention can be conveniently used as an aquaculture net or a net used in sports such as baseball, soccer, tennis and basketball by approximating the tortoise mesh 4 to a square net. In addition, by forming rhombuses or turtle-shaped meshes of an arbitrary shape up to a mesh shape similar to a square mesh, the use thereof is further widened.
[0020]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention comprised as mentioned above, a square-shaped net having a knotless mesh similar to a square mesh can be easily formed without causing waste of the net, It is possible to form a net having a rhombus or a tortoise in an arbitrary shape from a net having the above-mentioned net.
[0021]
According to the second aspect, it is possible to obtain a mesh similar to most of the existing square meshes, and the interaction of the tensile force of each side of the rhombus and the tortoise generated by stretching in the width direction, In addition to forming a group of meshes of a relatively uniform and uniform shape similar to a square mesh on the entire mesh surface, a relatively uniform tortoise of a uniform shape deformed to a degree that does not reach the shape of a square mesh A group will be formed.
[Brief description of the drawings]
FIG. 1 is a front view showing an outline of a woven structure of a changeable net according to the present invention.
FIG. 2 is a front view for explaining a comparative dimension of each side of the deformable net.
3 is a front view of the deformable network shown and who should be formed from a deformation allows network shape network member.
FIG. 4 is a front view showing a state in which the mesh of the deformable mesh is approximated to a square mesh.
FIG. 5 is a front view showing a conventional knotless net.
FIG. 6 is a front view of a cylindrical net, and FIG. 6B is a front view showing a cutting net cut out from the cylindrical net, regarding a conventional knotless mesh.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Diamond 1a, 1b, 1c, 1d Side 1a, 1b Upper side 1c, 1d Lower side of a mesh 4 Tortoise mesh a Dimension of a mesh of a diamond b Size of right and left mesh legs of a crack mesh net f1 Longitudinal direction f2 Width direction

Claims (2)

Adjoining mesh sides in a knotless mesh are formed in the longitudinal direction as the upper and lower sides of the mesh mesh to form a mesh mesh, and it is assumed that the diamond mesh and the mesh mesh are mixed. A knotless mesh-shaped changeable net, characterized in that a rectangular net is formed by both of them by stretching. 2. The knotless mesh-type changeable net according to claim 1, wherein the left and right net legs of the tortoise-shaped mesh are formed in a ratio of 0.4 to 3 when the rhombic mesh side size is set to 1.

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