JP2009185513A - Element for braided body, braided body, and net container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an element for a braided body having wear resistance, high tension, seawater resistance, weather resistance, and flexibility and so knittable without node that diamond-like meshes can be formed, and a braided body and a net container suitable for a revetment formation net bag, a revetment net, a slope formation net bag, a slope collapse prevention net, and other durable net bags and nets. <P>SOLUTION: A synthetic fiber core a having a high tension is covered with a crude rubber containing a cross-linking agent, formed in a bent shape, and heated and pressurized. The element 10 for a braided body having wave-like bent parts 11 fixed in bent shapes with flexibility is thereby formed. The braided body such as a mesh or a net is formed by knitting the element 10 for a braided body. The net bag-like or the net cage-like net container is formed by twining the ends of the braided body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a braided body element braided into a rhombus net, a braided body, and a net container.

  A diamond wire mesh is a wire mesh formed by processing lines into chevron and weaving them to form a parallelogram mesh.Because the joint of the mesh is not fixed like a welded wire mesh, it has high shock absorption. The product can be folded and transported easily, and can be repaired in the event of damage. The diamond wire mesh is made of polyethylene-coated iron wire, vinyl-coated iron wire, galvanized iron wire, colored painted galvanized iron wire, or stainless steel wire.

  Typical applications of rhombus wire netting include net fences, rockfall prevention nets, and jagged baskets for river revetments. In recent years, the installation of tetrapods has been criticized for destroying the white sand and blue pine that is the original landscape of the Japanese coast from its unique shape and color, and as an alternative to tetrapods, for example, a stone crate made of wire mesh Various revetment construction methods have been adopted in which natural stone blocks and the like are packed in the ground (see, for example, Patent Documents 1 to 4).

  On the other hand, conventionally, when a single yarn such as nylon is used to form a rhombus having the same mesh shape as that of a rhombus wire mesh, the mesh is not maintained at the initial fixed size, and the mesh becomes smaller and larger. Since the mesh is greatly shifted so as to concentrate on the mesh, a braided mesh of a mesh mesh made of fiber yarn is not provided. The braided fabric (mesh or net) of the same rhombus fibers as the rhombus wire mesh has a zigzag type knotless network in which the mesh yarn extends zigzag, a knotless Russell net, and a knotted net. These are made by lace knitting machines.

JP 2005-171687 A JP 2001-336156 A JP 2000-027151 A JP 09-235715 A

However, in the revetment method of Patent Documents 1 to 4, since the stone-packing frame is composed of a wire mesh, there is a problem that a sharp tip appears on the revetment surface after a long period of time. However, it is desirable to provide a frame lid made of fiber yarn or the like instead of a wire mesh.
On the other hand, when it has abrasion resistance, high tensile strength, resistance to seawater, weather resistance, flexibility, non-metallic (other than rhombus wire mesh) knitting yarn, rhombus mesh, and the mesh is hard to break and cut Therefore, it is desired to provide a braided body to be applied to a revetment forming net bag, a revetment net, a slope forming net bag, a slope collapse protection net, and the like.

  The present invention has been devised in view of the above points, and has abrasion resistance, high tensile strength, seawater resistance, weather resistance, and flexibility, and is knitted into a knot to form a rhombus mesh. Braided body element, revetment forming net bag, revetment net, slope forming net bag, slope collapse protection net, and other durable braids and net containers suitable as nets It is an issue to provide.

  In order to solve the above-mentioned problems, the braided body element of the present invention is a flexible material obtained by coating a synthetic fiber core material having a high tensile strength with a raw rubber containing a crosslinking agent, and sticking it into a continuous bent shape, followed by heating and pressurizing treatment. It has a wave-like bent part formed by fixing the shape to a bent shape having the property.

  It is preferable that the braided body element of the present invention has an intermediate portion that is folded back, and a pair of the wavy bent portions are provided in line symmetry on both side portions that are folded back at the intermediate portion.

  Further, the braided body of the present invention is a braided body such as a net or a net formed by braiding the braided body element of the present invention, and corresponding bent portions of one wavy bent portion and a wavy bent portion adjacent to the wavy bent portion. The braided body elements are entangled one after another, and the end of each braided body element is closed in a loop so as not to escape from the entangled state.

    The net container of the present invention is characterized in that the end of the braided body of the present invention is entangled to form a net bag shape or a net cage shape.

  According to the braided body element of the present invention, since it has a flexible bent wavy bent portion, the corresponding bent portions of one wavy bent portion and the adjacent wavy bent portion are entangled one after another. It is possible to easily knit the braided body by entwining the braided body element. Further, according to the braided body element of the present invention, since it has a wave-shaped bent portion whose shape is fixed (shape memory), after weaving as a braided body having the same knotless mesh as the rhombus metal mesh, Various braided bodies (such as nets and nets) can be knitted in which the nets are not easily broken even when a load is applied (the nets are not likely to be greatly shifted so as to concentrate on the smaller and larger nets).

  According to the braided body and the net container of the present invention, the braided element is knitted as a braided body with the same knotless mesh as that of the rhombus metal mesh, and the braided body element has abrasion resistance, high tensile strength, It has seawater, weather resistance, flexibility, and is shaped and fixed in a flexible bent shape so that the mesh is hard to collapse, revetment forming net bag, revetment forming net, slope forming net bag, slope It is suitable as a net for collapsing protection and other durable net bags and nets. When it is cut, it does not produce a sharp cut end and can be easily replaced and knitted.

  Embodiments of the present invention will be described below with reference to the drawings.

[Embodiment 1]
First, the braided body element will be described with reference to FIGS. 1 (a), 1 (b), and 2. FIG.
FIG. 1A is a shape diagram of a braided body element, and FIG. 1B is an enlarged longitudinal sectional view passing through the center line of the braided body element.
As shown in FIG. 1A, the braided body element 10 is a string having a triangular wave shape in a line. As shown in FIG. 1B, the braided body element 10 includes a synthetic fiber core material a and a covering rubber b. The synthetic fiber core material a is made of a synthetic fiber having a high tensile strength and plays a role of supporting the strength when formed into a braided body. The covering rubber b plays a role of covering the synthetic fiber core material a to maintain a zigzag saw blade shape and to support wear resistance.
The coated rubber b is formed by coating a synthetic fiber core material a having no shape-retaining property as uncrosslinked raw rubber with a coating molding machine, tensioned in a saw blade shape, and fixed at both ends. It is stored in a sulfur can and heated and pressurized for a certain period of time, at a certain temperature, and at a certain pressure. The element may be formed by press vulcanization.

  FIG. 2 shows an element material sticking tool 20 in which a plurality of pins 20b are projected in a staggered arrangement on a long rectangular plate 20a, and fixing means 20c are arranged at both ends, as shown in FIG. FIG. 5 is an element material insertion diagram showing a state in which an element material 10 ′ in which a synthetic fiber core material a having a tensile strength is coated with a raw rubber b is zigzag on a plurality of pins 20 b and is tensioned. In this way, the element material 10 'is stuck in the element material sticking tool 20 and accommodated in a vulcanizing can, and maintained at a pressure of about 2026 hPa to 5066 hPa, for example, and heated at 100 ° C to 160 ° C for 30 minutes to 90 minutes. This is the braided element 10.

  When the element material 10 ′ is zigzag and heated, the synthetic fiber core material does not change its length, but the raw rubber covering the synthetic fiber core material is heated and the intermolecular bond is formed by the action of the crosslinking agent. Strengthen (a kind of cross-linking reaction), reduce the volume to increase elasticity and tensile strength, increase wear resistance, weather resistance, oil resistance, fix the zigzag bent shape (shape memory), The braided element 10 exhibits elasticity, flexibility, and shape memory. The braided body element 10 serves to retain the triangular wave shape of the covering rubber b.

  The braided element 10 uses (1) an element material 10 ′ formed by coating a raw fiber b on a synthetic fiber core material a having high tensile strength, and (2) the element material 10 ′ as an element material sticking tool 20. By fixing to a zigzag and (3) heating and pressurizing with a vulcanizing can kept at a constant high temperature for a certain period of time, a fixed shape having a triangular wave-shaped bent portion 11 is obtained.

  In order to use the braided body element 10 for a revetment forming net bag, a revetment forming net, a slope forming net bag, and a slope collapse protection net, for example, as shown in FIG. An element material 10 ′ having a diameter d of the fiber core material a of 5 mm to 15 mm and a raw rubber thickness t of 0.5 mm to 3 mm is stuck to the element material sticking tool 20 and heated and pressurized. The numerical value of the diameter d of the synthetic fiber core material a and the numerical value of the thickness t of the covering rubber b are not intended to limit the present invention.

  When the wave-like bent portion 11 occupies the entire length of the braided body element 10, it is preferable that the inclined side portions at both ends are slightly longer than the middle inclined side portion when weaving the braided body, as will be described later. . In the braided body element 10, the wavy bent portion 11 may occupy the entire remaining length excluding both end portions.

The synthetic fiber core material a having high tensile strength is preferably selected from single wires or stranded wires such as aramid fibers, nylon fibers, or polyester fibers. The type, thickness, and the like of the synthetic fiber core material a are selected according to the purpose of use (size of load).
An aramid fiber is a polyamide fiber whose molecular skeleton is composed of an aromatic (benzene ring), and has very little elongation / shrinkage and is very strong in tensile strength.
Nylon fiber is a general term for polyamide-based resins, and is a polymer formed by bonding a large number of monomers by amide bonds. Examples of types include nylon 6, nylon 6,6, nylon 46, and nylon MXD6.
The polyester fiber is a polycondensate of polyvalent carboxylic acid (dicarboxylic acid) and polyalcohol (diol), and includes polytrimethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and the like.

  As the raw rubber for covering the synthetic fiber core material a, that is, the covering rubber b, styrene butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR) and the like are preferable, but other rubbers, specifically, Nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), fluorine rubber (FKM, FFKM), acrylic rubber (ACM), silicone rubber (VMQ, FVMQ), urethane rubber (AU, EU), ethylene propylene rubber (EPM, EPDM), chloroprene rubber (CR), chlorosulfonated polyethylene (CSM), epichlorohydrin rubber (CO, ECO), isoprene rubber (IR), polysulfide rubber (T), norbornene rubber (NOR) are not excluded. The raw rubber contains an appropriate amount of a crosslinking agent such as sulfur, other inorganic peroxo acid compounds, and compounds having peroxide or percarboxylic acid as a functional group.

  In order to avoid the element precursor wires in which the synthetic fiber core material is coated with the raw rubber from being in close contact with each other during the cross-linking treatment, a sliding material (anti-sticking agent) is formed on the outer surface of the raw rubber. As this sliding material, for example, talc is used.

Next, the braided body will be described with reference to FIGS.
First, the two braided body elements 10 shown in FIG. 1 are faced symmetrically so that the adjacent wave-like bent portions are entangled (see FIG. 3). Next, FIG. 4 shows a state in which one braided element 10 is further entangled with respect to one of the two entwined braided elements 10. FIG. 5 shows a state in which the fourth braided element 10 is entangled while changing its orientation with respect to one of the braided element 10 that is thirdly entangled. FIG. 6 shows a state in which the desired number of braided body elements 10 are entangled one after another. Finally, when the ends of each braided body element 10 are rearranged in a parallel passing state so that the ends of the braided elements 10 are not entangled, and connected by an appropriate means such as the caulking type fastening bracket 25, a net-like braid 30 Is completed. (See FIG. 7).
The net-shaped braid 30 is used for a revetment net, a slope collapse protection net, and the like.

Next, a bottomed cylindrical net container will be described with reference to FIGS.
When the net-like braided body 30 shown in FIG. 7 is wound into a cylindrical shape, and both ends of the braided body 30 are further entangled using two braided body elements 10 as shown in FIG. Further, as shown in FIG. 9, when the string-like body 41 is entangled and narrowed down to the bottom, the bottom can be closed, and the bottomed cylindrical net container 40 is obtained. A string-like body 42 is also entangled with the other end. The net container 40 is used for a revetment forming net bag, a slope forming net bag, and the like.

  The braided body 30 for forming an endless cylinder is formed by winding one braided element 10 first and then making one turn into a cylindrical shape, and a bent part at one end and a bent part at the other end Can be entangled using the remaining one braided body element 10 (see FIG. 8). After the braided body 30 and one braided body element 10 form an endless cylindrical body, one end in the cylindrical direction is closed. As the string-like bodies 41 and 42 used for the closing, the same material as that of the braided body element 10 can be used after being cross-linked and cut into an appropriate length.

  In the braided body element 10 shown in FIG. 1, when the net container 40 is formed such that a portion near the end which is the bottom side is formed to gradually become a smaller triangular wave toward the end, the braided body 30 is knitted. In the process of going through, the end is narrowed and the bottom surface can be configured. In addition, a net-like braided body 30 shown in FIG. 7 is half-folded and both sides thereof are closed to form a bag shape, which is also included in the net container of the present invention.

[Embodiment 2]
The braided body element, the braided body, and the net container according to the second embodiment will be described with reference to FIGS.

  FIG. 10 is a shape diagram of the braided element. The braided element 50 is a string having a triangular wave shape in a folded two-row shape. The braided body element 50 is exactly the same as the braided body element 10 of the first embodiment, and is composed of a synthetic fiber core material and a covering rubber.

  The braided body element 50 includes a pair of wave-like bent portions 51, 51 that are bent in line with a triangular wave symmetrically, an intermediate portion 52 that integrally connects one end of the pair of wave-like bent portions 51, 51, and each wave-like bend. It consists of short straight end portions 53 and 53 extending in parallel to the opposite side of the intermediate portion 52 of the portion 51.

FIG. 11 is an element material attachment diagram for making the braided body element 50.
In order to make the braided element 50, an element material sticking tool 60 having a plurality of pins 60b projecting symmetrically in a two-row staggered arrangement on a long rectangular plate 60a and having a fixing means 60c at one end is provided. Used, an element material 50 'formed by coating raw rubber on a synthetic fiber core material having high tensile strength, exactly the same as the element material 10' according to the first embodiment.
As a sticking procedure, first, the element material 50 ′ is zigzag-mounted on a plurality of pins 60b of one staggered arrangement of the element material sticking tool 60, folded at an intermediate portion, and zigzag-hooked to the plurality of pins 60b of the other staggered array. Then, both ends are pulled into tension and the both ends are fixed by the fixing means 60c.
In this way, the element material attaching tool 60 in which the element material 50 ′ is attached is accommodated in a vulcanizing can, and for example, maintained at a pressure of about 2026 hPa to 5066 hPa and heated and molded at 100 ° C. to 160 ° C. for 30 minutes to 90 minutes. FIG. 10 shows a braided body element 50 shown in FIG. As in the first embodiment, the element may be formed by press vulcanization.

  This braided body element 50 is formed by coating raw rubber on a synthetic fiber core made of the same material as that of the braided body element 10 according to the first embodiment, followed by heating and pressing under the same conditions. Yes, the synthetic fiber core material plays a role of supporting the strength when it is made of a synthetic fiber having a high tensile strength and formed into a braided body, and the coated rubber is coated with the synthetic fiber core material and has a zigzag saw blade shape. It plays the role of holding and carrying the wear resistance.

Next, the braided body will be described with reference to FIGS.
First, one braided element 50 shown in FIG. 10 is entangled in order from one side of the intermediate portion 52 side to the adjacent bent portions 51a, 51a of one wavy bent portion 51 and the other wavy bent portion 51. FIG. 12 shows a state in which a rhombus is formed and entangled.
Subsequently, a second braided body element 50 is prepared, and one wavy bent portion 51 of the braided body element 50 is not entangled on one side of the entangled first braided body element 50. FIG. 13 shows a state in which all the bent portions 51a are entangled with the bent portion from the intermediate portion 52 side, and the number of entangled positions is sequentially increased to increase the number. Next, the other wavy bent portion 51 is entangled with the one wavy bent portion 51 entangled with each other, and the bent portions adjacent to each other are entangled to form a rhombus in two rows and entangled. Shown in
FIG. 15 shows a state in which a desired number of braided body elements 50 are entangled one after another in this way. Finally, when the ends 53 and 53 of each braided body element 50 are rearranged in a parallel passing state so as not to be entangled, and connected by an appropriate means such as the caulking type fastening bracket 25, FIG. The net-shaped braid 30 shown is completed.
The net-shaped braid 70 is used for a revetment net and a slope collapse protection net.

Next, a bottomed cylindrical net container will be described with reference to FIGS.
As compared with the net-like braided body 70 shown in FIG. 16, as shown in FIG. 17, one wavy bent portion 51 of one braided body element 50 is further replaced with a wavy bent portion at one butt end of the braided body 70. 51 is wound in a cylindrical shape, and the other wavy bent portion 51 of the braided body element 50 is further connected to the one wavy bent portion 51 and the other butted edge of the braided body 70. By entangling the part 51 in a zigzag manner and sequentially feeding the entangled positions, an endless cylinder can be obtained. After that, when one end 53, 53 in the cylindrical direction is closed, it becomes an endless cylinder. Further, as shown in FIG. 18, the bottom can be closed by entwining and narrowing the string-like body 81 to the bottom, and the other end can be closed. When the string-like body 82 is entangled, a bottomed cylindrical net container 80 is obtained. The net container 80 is used for a revetment forming net bag, a slope forming net bag, and the like.
In the braided body element 50 shown in FIG. 10, when the net container 80 is formed so that the portion near the end on the bottom side becomes a gradually smaller triangular wave toward the end, the braided body 70 is knitted. When going on, the bottom surface can be constructed by narrowing the rhombus at the portion near the end which becomes the bottom side.

[Other Embodiments]
The present invention is not limited to the above-described embodiment, but includes variously modified forms within the technical scope without departing from the gist of the invention described in the claims.

FIG. 4 is a diagram illustrating a braided body element according to the first embodiment, and FIG. 5B is a partially enlarged cross-sectional view along the axis of the braided body element. It is a front view which shows the state which stuck the element material to the element material sticking tool. It is the front view braided so that a rhombus may be made in a line using two braiding elements. It is the front view which braided the element for 3rd braid bodies. It is the front view which braided the element for the 4th braided body. FIG. 2 is a front view showing a state in which a desired number of braided body elements shown in FIG. FIG. 7 is a front view of a braided body that is closed to a loop so that the ends are not further entangled from the braided state shown in FIG. 6. FIG. 8 is a front view of an essential part showing a halfway state in which the braided body of FIG. 7 is rolled into a cylinder and further braided to form a cylindrical net container using one braided element. FIG. 8 is a schematic perspective view of a net container in which the bottom is further knitted from the braided state shown in FIG. 7. 6 is a shape diagram of a braided body element according to Embodiment 2. FIG. It is a front view which shows the state which stuck the element material to the element material sticking tool. FIG. 11 is a front view showing a state in which one braided body element shown in FIG. 10 is braided so that rhombuses can be arranged in a row. It is a front view which shows the state braided so that the 2nd row rhombus could be made with the element for two braided bodies shown in FIG. FIG. 11 is a front view showing a state in which the braided body elements shown in FIG. 10 are braided so as to form a third row of rhombuses. FIG. 11 is a front view showing a state in which a desired number of braided body elements shown in FIG. FIG. 16 is a front view of a braided body that is closed to a loop so that the ends are not entangled from the braided state shown in FIG. 15. It is a principal part front view which shows the halfway state which rounds the braided body shown in FIG. 16 into a cylinder, and also braids so that it may become a net container using one braided body element. FIG. 17 is a schematic perspective view of a net container in which the bottom is further knitted from the braided state shown in FIG. 16.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Braided body element a Synthetic fiber core material b Covering rubber 30 Braided body 40 Net container 50 Braided body element 70 Braided body 80 Net container

Claims (4)

  A synthetic fiber core material having a high tensile strength is covered with a raw rubber containing a cross-linking agent, and has a wave-like bending portion formed by sticking in a continuous bending shape, heating and pressing, and fixing the shape into a flexible bending shape. A braided body element characterized by that. In the braided body element according to claim 1,
A braided body element comprising an intermediate portion that turns back, and a pair of wavy bent portions that are line-symmetrically provided on both side portions that are turned back at the intermediate portion. A braided body such as a net or a net formed by braiding the braided body element according to claim 1 or 2,
Loops so that the corresponding bent parts of one wavy bent part and the adjacent wavy bent part are entangled, the braided element is entangled one after another, and the end of each braided element does not escape from the entangled state A braided body characterized by being closed in a shape.   A net container characterized in that the braided body according to claim 3 is entangled to form a net bag shape or a net cage shape.

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