JP5687376B1 - Nodular network - Google Patents

Abstract

An object of the present invention is to provide a nodule that does not come loose while using a rope body made of a metal element wire in the nodule body and a nodule net body formed by using a plurality of the striate bodies and forming a net having a nodule portion. There is a technical problem to improve the breaking strength, corrosion resistance, and weather resistance of the nodule body having a portion. A plateau suitable for making a net using the mechanical strength characteristics of a coated body, which is greatly influenced by the mechanical strength characteristics of a rope body made of metal strands. It is possible to drastically improve the breaking strength of the knot network having the knot portion and the durability against the natural environment. [Selection] Figure 5

Description

  The present invention relates to a striated body used for a nodule net for protection such as for animal protection or for bird proofing, and a knot network formed by netting using this striated body.

  Conventional protective nets used for animal protection or bird protection use resin wires, metal wires, and metal wires for resin wires in order to prevent the invasion of wild animals such as deer, wild birds and wild birds. It is used as a net that is made using a mixed string or the like and stretched between struts.

  In such a case, the strength to prevent breakage by wild animals, the flexibility to be stretched according to the undulations of the topography, the corrosion resistance from rain, sea breeze, etc. for outdoor installation, the weather resistance from natural light, Durability to the natural environment and ease of net making are required.

  Patent Document 1 describes an anti-animal net formed by mixing a synthetic fiber with a metal wire such as a stainless steel wire.

  Patent Document 2 describes a net made of a stainless steel metal wire and a method for manufacturing the same.

Japanese Patent No. 4933372 JP 2011-63908 A

  The animal protection net described in Patent Document 1 is a combination of a knitted fabric made of a synthetic fiber mixed with a metal wire such as a stainless steel wire and a knitted fabric made only of a synthetic fiber to form a net and knitted by rubbing against a tension rope. The technical content is to prevent the breakage of the ground and the netting by wild animals.

  The net described in Patent Document 2 and the manufacturing method thereof are provided with a coating portion made of a resin material on the outer periphery of a wire material that is twisted using at least one stainless steel wire or at least one resin wire such as polyethylene. It is a technical content to make a net using a string and improve the heat resistance and strength of the net.

And although both patent documents 1 and 2 are the knitted fabric or the string body of the combination of different materials of a metal wire and a resin material, the mechanical strength characteristics differ greatly between the metal wire and the resin material, respectively. There is no technical description that understands the mechanical strength characteristics and uses these characteristics. In addition, when using a metal wire to make a net having a knot, analyze the correlation between the mechanical strength characteristics of the metal wire and the resin material to obtain the mechanical strength characteristics required for the net. There is no technical description of a synthetic fiber mixed with a metal wire or a string.
Furthermore, using the specific mechanical strength characteristics of the resin material, the mechanical strength characteristics of the knitted fabric or string body, which are greatly affected by the mechanical strength characteristics of the metal wire, have no loose knots. There is no description about a new technical idea of a knot network formed by using a plurality of filaments having mechanical strength characteristics suitable for making a knot network and having a knot portion. .

The present invention has been made in view of the above problems, and prevents the breakage of the net body and the deformation of the mesh during net making, as well as the ease of installation by improving flexibility, the prevention of invasion from wild animals, and corrosion resistance to the natural environment, with a weather resistance, and to provide a knot net assembly having a nub without loosening with dramatically improved durability.

In order to achieve the above-mentioned object, the knot network of the present invention is formed by using a plurality of filaments made of a rope body and a covering body covering the outer periphery of the rope body .

The rope body is a spiral rope twisted at a length of 6 to 12 times the outer diameter of the rope body using 7 to 19 metal strands, and has a tensile elongation at break of 30% to 50%. %, The tensile breaking force is 40N or more and 75N or less, and the metal strand has a chemical component C of 0.01% or more and 0.08% or less, Cr of 16% or more and 18% or less, and Mo of 2 2.0% to 3.0% or less, a tensile elongation at break less than 50% to 30%, a tensile strength at break is 1050MPa or less appearance than 550MPa Ru Ah in mirror-like solution treatment to austenitic stainless steel.

The covering is made of a crystalline thermoplastic resin containing an ultraviolet absorber having a tensile yield point elongation of 30% to 60% and a tensile yield point strength of 15 MPa to 35 MPa and having a main component of polyamide. Ru envelope to the outer peripheral adhesion-shaped rope member.

Then, 0 of the striatum, the tensile elongation at break Gallo-loop body. 45 times 0.75 times or less, 1 tensile breaking strength of the rope body. And 03 times 1.20 times or less, with increasing tensile elongation at break, tensile elongation at break Tensile within 2.5% breaking force increases linearly, then tensile elongation at break is up to 15% tensile and breaking force is gradually increased, the tensile elongation at break Ru optimum rupture after a plateau-like plateau become looser gradual change increases the tensile breaking strength exceeds 15%, the non-linear characteristic having a plateau der is, nodules network element is characterized in that it consists in manufacturing network with a knot portion with a plurality of the striatum.

Gold Shokumotosen rope body, Ri C is der 0.03% to 0.01% of chemical components, the covering body is a crystalline thermoplastic resin of the polyamides 12 or polyamides 12 elastomer, ultraviolet absorbing The agent may contain 0.01% or more and 0.25% or less of a benzotriazole-based compound or a hydroxybenzophenone-based compound .

Line Article body Ru using the nodal network of the present invention, Ri consists jacket encapsulating the periphery of the rope body and a rope member adhesion shape, having respective specific mechanical strength properties and rope body and a covering member .
The linear body is formed by covering the outer periphery of the rope body in a close-contact manner so that the tensile breaking elongation of the linear body is smaller than the tensile breaking elongation of the rope body, and the tensile breaking force of the linear body the set larger than the tensile force of the rope member, the mechanical strength properties of breaking strength and tensile elongation at break of the striatum, with increasing tensile elongation at break, breaking strength tensile within a certain tensile elongation at break Increases linearly and then gradually increases within a certain range of tensile breaking elongation, and when the tensile breaking elongation exceeds a certain value, the tensile breaking force gradually increases gradually and becomes plateau-like. Ru optimum rupture after leveled off, indicating the non-linear characteristic having a plateau.
The present invention is characterized in that it is a knot network formed by using a plurality of striates having this characteristic and making a net having a knot portion.
Thus, by using a striated body that can prevent breakage and prevention of mesh deformation at the time of making a mesh, a knot network body having a knot portion can be used. It is possible to obtain a nodule network having a loose nodule portion which has a net breakage prevention from animals, corrosion resistance and weather resistance against the natural environment, and drastically improved durability .

The rope body constituting the wire body is a spiral rope twisted with a length of 6 to 12 times the outer diameter of the rope body using 7 to 19 metal strands , and tensile elongation at break There 50% or less than 30%, a tensile break strength is Ru der than 75N or less 40N.
In addition, the metal strand has a chemical composition C of 0.01% to 0.08%, Cr of 16% to 18%, Mo of 2.0% to 3.0%, tensile fracture An austenitic stainless steel having an external appearance of a mirror surface and having an elongation of 30% to 50% and a tensile strength at break of 550 MPa to 1050 MPa is used .
As a result, 7 to 19 thin stainless steel metal wires with a diameter of 1 mm or less, which are easy to reduce diameter drawing, are twisted together, and a strong adhesion force is applied to adjacent wires to form a knot network. It is possible to obtain a rope body having a tensile breaking elongation and a tensile breaking force that can be made of

In addition, the covering constituting the striated body contains an ultraviolet absorber having a tensile yield point elongation of 30% to 60% and a tensile yield point strength of 15 MPa to 35 MPa . wherein the envelope to Rukoto the outer periphery of the rope body contact shape using a thermoplastic resin.
Accordingly, the specific mechanical strength characteristics of the covering mainly composed of polyamide easily modified by adjusting the degree of crystallinity, the structural characteristics of covering the outer periphery of the rope body in a close-contact manner, and the rope body using the mechanical strength properties, obtain the striatum having suitable mechanical strength properties manufacturing network node network having a slack-free nodules can Rukoto.
Furthermore, by using together a rope body composed of a metal strand having the chemical component and a coated body of a crystalline thermoplastic resin whose main component is a polyamide containing an ultraviolet absorber, corrosion resistance to the natural environment, It is possible to obtain a striated body for use in a knot network having a knot portion having no weathering and improved durability.

Then, by covering the outer periphery of the rope body in a close-contact manner, the tensile breaking elongation of the linear body is 0.45 times or more and 0.75 times or less of the tensile breaking elongation of the rope body, The tensile breaking force of the body is set to 1.03 times or more and 1.20 times or less of the tensile breaking force of the rope body, and the respective mechanical strength characteristics are limited to a certain range, and the tensile breaking elongation and tensile breaking of the linear body are limited. The mechanical strength characteristics of the force increase with increasing tensile breaking elongation, and the tensile breaking force increases linearly within 2.5% of tensile breaking elongation. Thereafter , the tensile breaking force is moderate until the tensile breaking elongation reaches 15%. It increases the tensile breaking elongation is Ru optimum rupture after a plateau-like plateau become looser gradual change increases tensile strength exceeds 15% to be a non-linear characteristic having a plateau Features.
Thus, certain mechanical strength properties and, in combination with a covering material having a specific mechanical strength properties, suitable mechanical strength to the manufacturing network node network having a node portion, which will be described later in Japanese rope body By obtaining a striated body having characteristics, it is possible to prevent breakage at the time of making a knot network, prevent deformation of the mesh, and prevent loosening of the knot portion.

Metal strands of the rope body C of chemical components is less than 0.03% 0.01% coating material is a crystalline thermoplastic resins of polyamide 12 or polyamide 12 elastomers, ultraviolet absorber benzo A triazole compound or a hydroxybenzophenone compound may be contained in an amount of 0.01% to 0.25% .
Accordingly, the rope member comprising a metal wire of austenitic stainless steels containing low carbon, polyamide 12 or polyamide 12 elastomer striatum using a combination of coated body containing a specific UV absorber suitable for the kneading of the obtained, and corrosion resistance to the natural environment, the ease of tensioned by increased flexibility with a fracture network prevention from wild animals, nodules network having a node portion without looseness with dramatically improved durability it is possible to obtain.

BRIEF DESCRIPTION OF THE DRAWINGS The front view and sectional drawing which notched some linear bodies of Embodiment 1 of this invention are shown. The mechanical strength characteristic of the rope body which comprises a filament is shown. It is sectional drawing which shows the filament body of Embodiment 2 of this invention. It is sectional drawing which shows the filament body of Embodiment 3 of this invention. The Example of the nodular net | network body using the linear body of Embodiment 4 of this invention is shown.

  Hereinafter, embodiments of the striatum and the nodular net used in the nodular net of the present invention will be described.

Embodiment 1 FIG.
FIG. 1 shows a linear body 1 according to a first embodiment of the present invention, FIG. 1 (a) shows a front view in which a part of the linear body 1 is cut out, and FIG. The aa sectional view of 1 (i) line object 1 is shown.
The linear body 1 includes a rope body 2 and a covering body 3 that covers the outer periphery of the rope body 2.
The rope body 2 uses six side metal wires 2B having a wire diameter d1 of 0.11 mm on the outside of a core metal wire 2A having a wire diameter d0 of 0.13 mm and an outer diameter D0 of 0.1. The twisted structure described later is a 1 × 7 spiral rope that is 33 mm and twisted to a length P of 3.3 mm using a twisting machine.
And the coating | coated body 3 is formed in the outer periphery of the rope body 2 by extrusion molding etc., and it is set as the linear body 1 whose outer diameter D1 is 0.75 mm.

The spiral rope here refers to a rope formed by twisting three or more metal strands into strands (bundles). When n is the number of metal strands, the name of the twist configuration is (1 × n ). Since the filament 1 of the first embodiment uses seven metal strands 2A and 2B, the name of the twisted configuration is 1 × 7. Moreover, the twist structure of the rope body 22 of the linear body 11 of 2nd Embodiment shown in FIG. 3 mentioned later is 1x19.
A strand rope means a rope in which three or more strands are twisted together, where m is the total number of strands and n is the number of metal strands in the strand, the name of the twist configuration is (m × n) is there. Further, the rope body 222 of the linear body 111 of the third embodiment shown in FIG. 4 described later has a total number m of strands of 7 bundles, and the number n of metal strands in one bundle of strands is 7. The twist configuration is 7 × 7.

  The rope body of the present invention may use either a spiral rope or a strand rope, but it is preferable to use a spiral rope. This is because in the case of a strand rope, the flexibility is improved, but the tensile breaking elongation is larger than that of the spiral rope, and the tensile breaking force is low, so that the net making process is somewhat difficult.

The metal strands 2A and 2B used for the rope body 2 are subjected to a solution heat treatment at 900 ° C. to 1150 ° C. for 30 seconds to 2 hours. By this heat treatment, the core metal wire 2A having a wire diameter d0 of 0.13 mm obtained the characteristics that the tensile breaking elongation (JIS3540) was 42% and the tensile breaking strength (JIS3540) was 733 MPa. Further, the side metal member 2B having a wire diameter d1 of 0.11 mm has a tensile elongation at break of 34% and a tensile strength at break of 663 MPa.
And considering the upper and lower limit values required for the tensile break elongation and tensile break strength of the metal wires 2A and 2B derived from many experimental results, the tensile break elongation is 30% to 50%, and the tensile break strength is An austenitic stainless steel wire of 550 MPa or more and 1050 MPa or less is suitable as the metal wires 2A and 2B. The reason for this is that the filament 1 comprising the rope body 2 composed of the metal strands 2A and 2B made of austenite stainless steel structure that is completely dissolved by solidifying the carbide generated during the diameter reduction drawing process, This is because the tensile breaking elongation is large and the tensile breaking force is constant, which is the optimum characteristic for netting as a knot network.

Here, the wire diameter d0 of the core metal wire 2A was 0.13 mm, and the wire diameter d1 of the side metal wire 2B was 0.11 mm. The reason why the tensile strength at break was improved by making the wire diameter d0 of the core material larger than the wire diameter d1 of the side material in this way is that the core material arranged linearly when the tensile force is applied to the rope body 2. The tensile force applied to the metal wire 2A is larger than that of the single metal wire 2B of the side material arranged in a spiral shape, and the rope body 2 is brought into an early stage due to an increase in the tensile force applied to the core metal wire 2A. This is to prevent breakage. Preferably, the wire diameter of the core metal wire 2A is 10% or more and 30% or less thicker than the wire diameter of the side metal wire 2B, more preferably 15% or more and 25% or less.
In the first embodiment, the wire diameter d0 of the core metal wire 2A is about 18% thicker than the wire diameter d1 of the side metal wire 2B.

Further, the length P of the rope body is preferably 6 to 12 times the outer diameter D0 of the rope body 2, and more preferably 8 to 12 times. The reason for this is that, if the lower limit is not reached, the metal wires 2B of the side members receive a compressive force from each other and easily float outward, and the tensile elongation at break increases. Further, if the above range is exceeded, a non-uniform gap is likely to be generated between adjacent wires of the side metal wires 2B, and the shape is likely to be lost.
In the first embodiment of the present invention, the length P is 3.3 mm, which is 10 times the outer diameter D0, and is within the above range.

The rope body 2 having a twist configuration of 1 × 7 using the metal strands 2A and 2B and an outer diameter D0 of 0.33 mm has a tensile breaking elongation of 38% and a tensile breaking force of 52N.
And considering the upper and lower limit values required for the tensile breaking elongation and tensile breaking force obtained from many experimental results, the tensile breaking elongation of the rope body 2 is 30% to 50% and the tensile breaking force is 40 N or more. 75N or less is appropriate. The reason for this is to obtain a rope body 2 having suitable characteristics having both a tensile breaking elongation and a tensile breaking force capable of forming a knot network having a knot portion of the knot network.

The covering 3 has a tensile yield point elongation (ASTM.D638) of 50% and a tensile yield point strength (A
STM. D638) is mainly composed of a crystalline thermoplastic resin having a pressure of 23 MPa.
The rope body 2 is formed in close contact with the outer peripheral surface of the metal element wire 2B which is the side material constituting the outer periphery of the rope body 2 to obtain a linear body 1 having an outer diameter D1 of 0.75 mm.
And considering the upper and lower limit values of the tensile yield point elongation and tensile yield point strength of the crystalline thermoplastic resin obtained from many experimental results, the tensile yield point elongation of the crystalline thermoplastic resin is 30% or more and 50% or less. The tensile yield point strength is suitably 15 MPa or more and 35 MPa or less. The reason for this is that by combining the mechanical strength characteristics of the crystalline thermoplastic resin constituting the covering 3 and the mechanical strength characteristics of the rope body 2 that is a twist of metal strands, This is to make the mechanical strength characteristics suitable for making a knot network having a knot portion without looseness.

As the crystalline thermoplastic resin, polyethylene, polypropylene, polyamide (6, 66, 12, 6-12, etc.), polypropylene elastomer, polyamide (6, 66, 12, 6-12, etc.) elastomer, etc. can be used. Polyamide 12 or polyamide 12 elastomer is preferred. In the first embodiment, a polyamide 12 elastomer is used. The reason for using this crystalline plastic resin is that a resin material that can be easily modified by adjusting the degree of crystallinity and has mechanical strength characteristics of desired tensile yield point elongation and tensile yield point strength can be obtained.
The polyamide 12 elastomer of the first embodiment has a specific gravity of 1.02, a water absorption of 0.7% (65% RH, 20 ° C.), a flexural modulus (ASTM.D790) of 200 MPa to 450 MPa, IZOD impact strength (ASTM D256A method, notched, when dried) has the property of not breaking.

Next, FIG. 2 shows the relationship between the tensile breaking elongation (%) and the tensile breaking force (N) of the linear body 1 of the first embodiment and the rope body 2 constituting the linear body 1, and the reference symbol A is The wire body 1 and the reference symbol B indicate the rope body 2.
As described above, the tensile strength at break of the rope body 2 (indicated by reference symbol B) is 38%, and the tensile strength at break is 52N. Further, the wire body 1 (indicated by reference symbol A) has a tensile elongation at break of 24% and a tensile strength at break of 59N. From this result, as the covering 3 covering the outer periphery of the rope body 2, a polyamide 12 elastomer of a crystalline thermoplastic resin is used, so that the tensile elongation at break of the linear body 1 is reduced with respect to the tensile elongation at break of the rope body 2. And about 0.63 times. Moreover, the tensile breaking force of the filament 1 could be improved about 1.13 times the tensile breaking force of the rope body 2.
Then, “nonlinear characteristics having a plateau” were obtained as the characteristics of the tensile breaking elongation and the tensile breaking force of the filament 1. That is, as the tensile breaking elongation increases, the tensile breaking force increases linearly within about 2.5%, and then the tensile breaking force gradually increases until the tensile breaking elongation is about 15%. When the tensile elongation at break exceeded about 15%, the tensile breaking force gradually increased gradually, and the properties of the striated body 1 leading to breakage were obtained after the plateau was flat. By using the striate body 1 having such a plateau and having non-linear characteristics, a knot without loosening can be made in a knot portion of a knot network described later.

As described above, the wire body 1 including the rope body 2 and the covering body 3 covering the outer periphery of the rope body has a tensile breaking elongation smaller than that of the rope body, and a tensile breaking force. However, it was possible to obtain characteristics larger than the tensile breaking force of the rope body. As the tensile breaking elongation increased, the tensile breaking force increased linearly, and then gradually increased to a plateau-like leveling state, and then a non-linear characteristic having a so-called plateau that led to breaking could be obtained. .
The reason why such a characteristic is obtained is that the covering 3 has a specific mechanical strength by adjusting the crystallinity with a crystalline thermoplastic resin as a main component, and the rope body 2 is an austenitic heat-treated solution. A plurality of stainless steel wires are twisted together to have a certain mechanical strength, and the covering 3 is tightly encapsulated in a rope body 2 whose outer periphery is uneven by twisting of the metal strands. Thus, it is considered that this is due to the synergistic effect of the mechanical strength characteristics of the covering body 3 and the rope body 2 and the anchor effect with the rope body 2 having an uneven outer periphery.
Then, in consideration of many experimental results regarding the tensile breaking elongation and tensile breaking force of the linear body 1, the tensile breaking elongation of the linear body 1 is 0.45 times or more than the tensile breaking elongation of the rope body 2. It is 75 times or less, and the tensile breaking force of the wire body 1 is 1.03 times or more and 1.20 times or less than the tensile breaking force of the rope body 2, so that the linear shape suitable for the nodule of the nodule network It turns out that the body 1 can be obtained. The reason for this is that if it exceeds the lower limit, the tensile elongation at break increases, and it becomes difficult to break when forming a loop by hooking the filament 1 on the upper collar during the netting process described later, and the tensile breaking force is This is because the wire 1 is less likely to break when it is increased and retreats while the wire 1 is hooked on the lower arm during the net making process described later to try to form another loop.
Also, if below the upper limit, the tensile elongation at break decreases, and when forming a loop by hooking the wire 1 to the upper collar during the netting described later, the loop shape is uniform, uniform square shape, or It is easy to form a rhombus-like mesh, and the rigidity is reduced by reducing the tensile breaking force. Therefore, the knots of the knots are caused by the springback characteristics of the linear body 1 that tends to repel bending deformation. This is because the problem of loosening is suppressed.
And, by the range of the upper and lower limit values, it is possible to more reliably perform the flexibility necessary for the knot portion of the knot network and the knot without loosening.

Next, as chemical components of the metal strands 2A and 2B used for the rope body 2, C is 0.01% or more and 0.08% or less, Cr is 16% or more and 18% or less, and Mo is 2.0%. It is desirable that it is 3.0% or less. For example, SUS316 or the like. By making C 0.08% or less, the formation of carbides is suppressed, and by adding Cr and Mo within the above range, corrosion resistance and acid resistance can be reduced without deteriorating mechanical strength characteristics. Can be increased.
As the coating member 3, it is possible to improve the crystalline thermoplastic resin of the polyamide which is a main component, resistance weather resistance against natural light that contain an ultraviolet absorber.
And by combining the optimization of the chemical composition of the metal strands 2A and 2B used for the rope body 2 and the addition of an ultraviolet absorber to the covering 3, the corrosion resistance of the linear body 1 due to salt damage or the like can be improved. The improvement and the weather resistance from natural light can be improved, and the overall durability against the natural environment can be improved.

And preferably, as a chemical composition of the metal strands 2A and 2B used for the rope body 2, C is 0.01% or more and 0.03% or less. For example, SUS316L. The crystalline thermoplastic resin used for the covering 3 is made of polyamide or polyamide elastomer, and the ultraviolet absorber contains 0.01% or more and 0.25% or less of benzotriazole-based compound, hydroxybenzophenone-based compound, or salicylic acid ester. . The reason for this is that the formation of chromium carbide generated at the crystal grain boundaries of the metal wires 2A and 2B is suppressed, the corrosion resistance of the crystal grain boundaries is improved, and the crystalline thermoplastic resin of the covering 3 is polyamide or polyamide It is easy to knead as an elastomer and contains an ultraviolet absorber such as a benzotriazole-based compound that exhibits weather resistance. By using these in combination, the corrosion resistance of the filament 1 due to salt damage, etc. This is because the resistance to natural environment can be further improved by further improving the weather resistance from natural light.
As the ultraviolet absorber, those containing a benzotriazole-based compound such as 2 (2′hydroxy-5-methylphenyl) benzotriazole are more preferable. This is because benzotriazole compounds have a very large ultraviolet absorption coefficient, so even if the content is only 0.02% compared to 0.2% of other ultraviolet absorbers, the product life This is because the length can be greatly increased by 6 times or more.

As a supplement, it is desirable that the metal strands 2A and 2B used for the rope body 2 have a “mirror surface” appearance. The reason for this is that, when forming a knot portion such as a knot or knot of a knot network, which will be described later, the rope body 2 used for the striated body 1 is required to have a large tensile breaking elongation characteristic, and the lower collar has a warp thread. This is because a tensile breaking strength that can withstand this tensile force is required when forming another loop by pulling back while being pulled. In this case, when a tensile force is applied in the longitudinal direction, a compressive force is applied in a direction (radial direction) orthogonal to the longitudinal direction, and adjacent wires of the metal strands 2A and 2B receive this compressive force. And since the adjacent line is mirror-like and made of the same material, a strong adhesive force acts on the adjacent lines to increase the frictional resistance, and this increased frictional resistance can improve the tensile breaking strength. It is. The term “mirror surface” as used herein refers to a surface state in which unevenness cannot be detected by visual and tactile sensations, or a surface state in which light can be reflected, and it means a state in which an object is clearly reflected like a mirror. Not to do.
In the first embodiment, when the tensile breaking force of the rope body 2 is calculated from the sum of the tensile breaking strengths of the metal wires 2A and 2B, it is approximately 47.5N (9.7 × 1 + 6.3 × 6). On the other hand, since the actual tensile breaking force is 52N, the tensile breaking force is improved by about 10% from the calculated value 47.5N. This is considered to be due to the fact that the rope body 2 has a twisted configuration and that the surfaces of the adjacent metal strands twisted together are mirror-like.

  In order to make the appearance of the metal strands 2A and 2B “mirror-like”, it is effective to use bright heat treatment. This is because heat treatment is performed in hydrogen gas or decomposed ammonia gas (25% N 2, 75% H 2), thereby preventing the generation of oxide scale on the surfaces of the metal wires 2A and 2B and maintaining high brightness. Because it can.

Embodiment 2. FIG.
Next, FIG. 3 shows a cross-sectional view of the filament 11 of the second embodiment of the present invention. The linear body 11 includes a rope body 22 having a twisted configuration of 1 × 19 and a covering body 33 that tightly covers the outer periphery of the rope body 22, and the outer diameter is the same as that of the linear body 1 in the first embodiment. 0.75 mm. The metal strand used for the rope body 22 is formed by twisting six metal strands 22B having a wire diameter of 0.065 mm on the outside of the metal strand 22A having a wire diameter of 0.08 mm, and further a metal having a wire diameter of 0.065 mm. This is a spiral rope having a twist configuration of 1 × 19, in which 12 strands 22C are twisted to have an outer diameter of 0.33 mm. The covering 33 is made of the same material as the covering 3 in the first embodiment.

Embodiment 3 FIG.
Next, FIG. 4 shows a cross-sectional view of the filament 111 of the third embodiment of the present invention. The wire body 111 is composed of a rope body 222 having a twist configuration of 7 × 7 and a covering body 333 that tightly covers the outer periphery of the rope body 222, and the outer diameter is 0.75 mm, similar to the wire body 1. is there. The metal strand used for the rope body 222 is a strand rope having a strand configuration of 7 × 7, twisted by using 49 metal strands having a wire diameter of 0.030 mm to 0.040 mm to an outer diameter of 0.33 mm. is there. The covering body 333 uses the same material as the covering body 3 in the first embodiment.

In the first to third embodiments described above, the rope bodies 2, 22, and 222 used for the linear bodies 1, 11, and 111 are formed by twisting the solution heat treated metal strands into a rope body. The rope body 2 having a certain range of mechanical strength characteristics after performing wire diameter reduction and twisting using a metal wire having a tensile breaking strength of 1500 MPa or more, followed by solution heat treatment under the heat treatment conditions, 22 and 222 may be used.
In other words, in the striated body used for the nodular mesh body, the striated body is composed of a rope body and a covering body that covers the outer periphery of the rope body, and the rope body is subjected to reduced diameter drawing and tensile breaking strength. Is formed by twisting a plurality of austenitic stainless steel wires of 1500 MPa to 3500 MPa to form a rope body, followed by a solution heat treatment, a tensile breaking elongation of 30% to 50% and a tensile breaking force of 40 N 75 N or less, the covering is a crystalline thermoplastic resin, has a tensile yield point elongation of 30% to 60% and a tensile yield point strength of 15 MPa to 35 MPa, and is disposed on the outer periphery of the rope body. The tensile breaking elongation of the linear body is 0.45 times or more and 0.75 times or less of the tensile breaking elongation of the rope body, and the tensile breaking force of the linear body is set to the rope. The mechanical strength characteristics of the tensile breaking elongation and the tensile breaking force of the above-mentioned filaments are linear with the increase in the tensile breaking elongation. It is a linear body characterized by a non-linear characteristic having a plateau that increases and then gradually increases to a flat plateau and then breaks.
Similarly, the nodule net is a nodule net formed by forming a net with a nodule portion using the above-mentioned striatum.
This facilitates the twisting operation of the rope body, and the mechanical strength characteristics of the rope body are particularly suitable for the production of nets using the mechanical strength characteristics of the covering body having specific mechanical strength characteristics. By using a non-linear characteristic striate having a plateau suitable for a knot network having a knot part, which will be described later, it is possible to prevent breakage at the time of netting, deformation of the mesh, and prevention of loosening of the knot part.

Embodiment 4 FIG.
Next, FIG. 5 shows the nodule net 4 made of the filaments 1 and 6 of the present invention and having the nodule portion 5, and FIG. The figure is shown.

FIG. 5 (a) shows a nodule net 4 in which the length of one side of the net is 20 mm to 200 mm and the nodule 5 is formed by the line 1 and the line 6. In addition, the filament 1 and the filament 6 are the same specifications.
FIG. 5 (b) is an enlarged view before the knotted knot method of the knot portion 5 shows the saddle knot using the striated body 1 and the striated body 6, and is tightened tightly. The knot knot of the knot part 5 is not limited to the knot or knot, and a double knot or knot or the like may be used, but a knot or knot is preferable. The reason for this is that the double fold or knot is a method in which the fold or tie is double-wound, and more tensile rupture elongation and plastic deformation performance are required than the fold or tie, and the tensile rupture force decreases at the knot 5. In addition, in this knot, misalignment of the square mesh is likely to occur due to the springback characteristic that tends to repel the bending deformation of the filaments 1 and 6, and the size of the square shape is likely to be uneven. Because it becomes. The mesh shape may be either a square shape or a rhombus shape.

  For example, as disclosed in Japanese Patent Application Laid-Open No. 2006-57201, a method for netting a knot network 4 having a knot portion 5 is obtained by hooking a warp thread (in this embodiment, a filament 1) in an upper collar. Rotating the upper collar forms a loop, and the lower collar passes through the loop and retracts while hooking the warp to form another loop, and the weft (in this embodiment, the filament 6 in this embodiment) is wrapped around At the lower side of the shuttle that stores the money, the knotted knot portion 5 is formed by pulling it to the lower heel and releasing the warp, thereby forming the knotted net 4.

In this case, the hook shape that hooks the warp of the upper hook has a radius of curvature of approximately 3 mm to 5 mm inside the hook, and when the warp is hooked and rotated to form a loop, the filament 1 has a certain elongation at break. Need. Further, the hook shape for pulling the lower warp warp has a small radius of curvature of about 3 mm inside the hook, and the wire 1 needs a certain tensile breaking force when the warp is pulled back. The coated body 3 which is an elastic body depending on the presence or absence of tension in the longitudinal direction of the filaments 1 and 6 is reduced in diameter (with tension) in the direction orthogonal to the longitudinal direction (diameter direction) and expanded by restoration (without tension). Works. By this action acting on the nodule part 5, the nodule part 5 without looseness can be formed.
In the present invention, in the nodule network 4 having the nodule portion 5 such as the knot or knot, the mechanical properties of the filaments 1 and 6 necessary for the production of the nodule net 4 having the nodule portion 5 having no looseness. This invention has found out the strength characteristics. In order to obtain the linear bodies 1 and 6 satisfying the mechanical strength characteristics, a rope body having a large tensile breaking elongation and a constant tensile breaking force is used while being a metal wire, and on the outer periphery of the rope body. An adhesive covering 3 is provided to specify the mechanical strength characteristics of the covering 3, and by using the specified mechanical strength characteristics, the rope body can be provided with a large tensile elongation at break and tensile breaking force. Ru can be obtained striatal 1,6 having a suitable tensile elongation at break and tensile breaking force.
As described above, the present invention is suitable for the nodule network 4 having the nodule portion 5 by using the specific mechanical strength characteristic of the covering 3 while using the rope body made of the metal strand. From the new technical idea, the striated body 1 and 6 is obtained, and the striated body 1 and 6 is used to form a knot network 4 having a knot portion 5 having no looseness. Become.

Although the nodular net 4 of the present invention has been described as preventing the invasion of wild animals, in addition to the above, it is stretched over the pond of the garden as a protective net for preventing the invasion of birds, cats, etc. When it is used as a protective net for bird damage prevention that protects sculptures and sculptures, a landscape is required.
In such a case, if the knot network 4 of the present invention is used, the outer diameter D1 of the filaments 1 and 6 is 0.75 mm, and the crossing area of the ropes 2 with respect to the transverse area of the filaments 1 and 6 is reduced. The area occupies about 16% [{(0.13 square) + (0.11 square) × 6) / (0.75 squared)} × 100], and the remaining 84%. % Is covered with the highly transparent polyamide 12 elastomer coating 3 so that the landscape is not impaired. Also, when used as a protective net from birds, cats, etc. in garden ponds, if polyamide 12 or polyamide 12 elastomer is used, the water absorption is 1/2 or less (0.7 or less than the same polyamide 6, 66, etc.). The mechanical strength characteristics can be prevented from being lowered by water absorption from rain water, pond water, or the like.
Furthermore, by using together the rope body 2 made of a metal wire with improved corrosion resistance and the covering body 3 with improved weather resistance from natural light, the durability is dramatically improved over the natural environment for a long period of time. It is possible to provide the nodule network 4 improved to the above.

1, 6, 11, 111 Striated body 2, 22, 222 Rope body 3 Cover body 4 Knot network 5 Knot part

Claims (2)

A nodular net body formed by netting with a nodule portion using a linear body covering the outer periphery of the rope body,
The rope body, using nineteen gold Shokumotosen from seven, and spiral rope more length was stranding below 12 times 6 times the outer diameter of the rope body, a tensile elongation at break not less than 30% 50% or less, the tensile breaking force is 40N or more and 75N or less ,
The metal strand has a chemical component C of 0.01% to 0.08%, Cr of 16% to 18%, Mo of 2.0% to 3.0%, tensile elongation at break Is an austenitic stainless steel that has been subjected to a solution heat treatment having a mirror-like appearance with a tensile breaking strength of 550 MPa to 1050 MPa.
The covering is made of a crystalline thermoplastic resin having a tensile yield point elongation of 30% or more and 60% or less and a tensile yield point strength of 15 MPa or more and 35 MPa or less, containing an ultraviolet absorber and having a main component of polyamide. Cover the outer circumference of the rope body in close contact,
The wire body has a tensile breaking elongation of 0.45 times or more and 0.75 times or less of the rope body, and a tensile breaking force of 1.03 times or more and 1.20 times or less of the rope body,
With increasing tensile elongation at break, tensile elongation at break tensile fracture strength, within 2.5 percent increases linearly, then the tensile elongation at break tensile breaking strength up to 15% is increased gradually, tensile When the elongation exceeds 15%, the tensile breaking force gradually increases gradually and becomes a plateau-like flat state, and then breaks .
A knot network comprising a plurality of the striates and a net having a knot portion . The metal strand of the rope body has a chemical component C of 0.01% or more and 0.03% or less,
The covering is a crystalline thermoplastic resin of polyamide 12 or polyamide 12 elastomer, and the ultraviolet absorber contains 0.01% or more and 0.25% or less of a benzotriazole compound or a hydroxybenzophenone compound. The nodule network according to claim 1 .