JPH0114705Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a rope joining structure in which ropes or ropes and rods are joined together to form a net or the like.

[Conventional technology]

Conventionally, wire ropes and fiber ropes are connected by unraveling the ropes and then braiding them to create knots, or by tightening the overlapping parts using clamps or by driving pins into the ropes. However, the conventional connection structure has drawbacks such as complicated connection work and complicated structure. Furthermore, the above structure has the disadvantage that when a large load is applied to the rope, the area of contact with the rope is small, the fixed part shifts and the rope formed in a net shape loosens or bends, causing the rope to become under tension. It was difficult to hold the Therefore, the present inventor carried out intensive research and development based on the idea that the above-mentioned drawbacks could be solved all at once by using an adhesive, and as a result, the present invention was completed.

[Problem that the invention attempts to solve]

This idea uses two types of synthetic resins with adhesive properties on the inside and outside to join ropes of the same or different types, or to join ropes and rods, to form a net, etc. that maintains tension. It is there to provide structure.

[Means to solve the problem]

In order to solve the above problems, this invention involves overlapping ropes formed by converging multiple filament wires or fibers, or overlapping the above rope and rod material, and joining the overlapping parts of the ropes. In this structure, (a) the rope overlapping portion is coated with an inner bonding agent made of a soft and adhesive synthetic resin containing reinforcing fibers; (b) by applying pressure to the inside of the rope overlapping portion. (c) The inner bonding agent is cured in this state; (d) The outer surface is made of a photocurable synthetic resin having adhesive properties; A technical measure has been taken in which the two layers are coated integrally with a bonding agent and fixed by light irradiation to create a two-layered joint.

[Effect]

The inner bonding agent penetrates into the gaps between the overlapping parts of the rope and into the twisted grooves of the rope, so it can come into wide contact with the rope, and it hardens in that state, making it possible to fix the rope extremely strongly. Furthermore, since the inner bonding agent contains reinforcing fibers, the rope can withstand a large load. Since the outside of the inner bonding agent is integrally coated with the outer bonding agent, the ends of the reinforcing fibers exposed on the surface of the inner bonding agent are covered and do not directly appear on the outer surface. Furthermore, since the outer bonding agent is made of photocurable synthetic resin, even if a structure such as a net using a rope bonding structure is installed outdoors, it will not cover and deteriorate the inner bonding agent, and it can be colored as appropriate. You can also.

【Example】

Below, preferred embodiments of the rope joining structure according to this invention will be described based on the drawings. The rope joining structure shown in the perspective view in FIG. 1 consists of two ropes 1 and 2 arranged in a cross-section and fixed together with a paste-like joining agent 3 to form a knot-like joint 10. There is. That is, in this embodiment, the ropes 1 and 2 are respectively made of fiber ropes formed by converging and twisting fibers, and are arranged to cross each other vertically. Here, since the ropes 1 and 2 are used for a play net, it is more effective if they each have a diameter of about 12 mm. In this invention, the combination of the ropes is not particularly limited, and one may be a wire rope formed by converging and twisting filament wires and the other may be a fiber rope, or both may be wire ropes. Alternatively, one of the ropes may be connected to the other using a rod material (not shown) made of wood or metal pipe or the like. Paste-like inner bonding agent 3A is applied to this rope overlapping portion without any gaps. This inner bonding agent 3A may be made of a soft and adhesive synthetic resin containing reinforcing fibers, and is suitable for optimal hardening depending on the purpose and application of the structure formed using the rope bonding structure. physical properties (tensile strength, bending strength, elastic modulus, barcol strength,
Adhesive strength, etc.) may be appropriately selected. In this example, a paste-like vinyl ester resin (Lipoxy) (product name: Lipoxy VS-) mixed with glass fiber flakes was used as the inner bonding agent 3A.
100・Showa Kobunshi Co., Ltd.) is used. This has photocurability, but in this invention, a synthetic resin that does not have photocurability can be used as an adhesive. That is, since a photocurable synthetic resin is used as the outer bonding agent 3B, which will be described later, when a structure using a rope bonding structure is installed outdoors, the inner bonding agent 3A is covered with the outer bonding agent 3B. This is because it is not affected by sunlight and does not have any negative effect on its adhesion. Next, the inner bonding agent 3A is applied to the inside of the rope overlapping portion by an appropriate means. In this embodiment, the upper and lower formwork materials 4 shown in FIG.
5 is used to mold and pressurize the inner bonding agent 3A, but the pressurizing method is not limited to the above configuration and may be a method such as pressing by hand. In the molding of the inner bonding agent 3A, small holes 8 and 9 communicating with the outer surfaces of the ropes 1 and 2 may be formed as shown in FIG. This can suppress the formation of cavities when the bonding agent 3 hardens, and the strength of the connecting portion 10 can be further improved. Due to this pressurization, the inner bonding agent 3A penetrates into the gap S1 between the ropes 1 and 2 and into the twisted grooves S2 of each of the ropes 1 and 2, as shown in the cross-sectional view in FIG. In this state, light irradiation is performed using a light irradiation device such as a high-pressure mercury lamp. As a result, the inner bonding agent 3A rapidly hardens and strongly fixes the ropes 1 and 2 to each other. Also, since it contains reinforcing fibers, it is resistant to impact forces. In the above embodiment, a structure in which the ropes 1 and 2 are connected to each other is illustrated, but in this invention, at least one of the ropes may be a rope, and the other may be a rod material such as wood or metal. In this case, the bonding agent 3 does not penetrate into the inside of the rod material, but it can penetrate into the rope portion in the same way, so it is possible to achieve substantially the same effect as in the above embodiment. . Furthermore, in the case of wire ropes, etc., into which the bonding agent 3 is difficult to penetrate, or when an even stronger adhesion force is required, in addition to the above configuration, a driving pin P is driven in the thickness direction at the overlapped part of the rope. But that's fine. At this time, if small holes 8 and 9 are provided that communicate with the outer surfaces of the ropes 1 and 2, the driving pin P can be positioned and driven into these small holes, which is preferable (see Fig. 8). reference). Since the inner bonding agent 3A contains glass flakes, the ends of the glass flakes may protrude outward and the surface may be rough. Therefore, the outside of this inner bonding agent 3A is further coated with a photocurable synthetic resin as an outer bonding agent 3B (see FIG. 5). This outer bonding agent 3B serves as a cover that integrally covers the outside of the inner bonding agent 3A, and in this embodiment, it is made of paste vinyl ester resin (lipoxy).
It is applied to the outside of the inner bonding agent 3A which has been cured using a predetermined thickness, and after molding, it is irradiated with light to integrally cure the adhesive. This outer bonding agent 3B may be any photocurable synthetic resin, and may also be a vinyl acetate copolymer (EVA resin) or the like. Therefore, as clearly shown in FIG. 2, the connecting portion 10 is fixed with a two-layer structure of the inner bonding agent 3A and the outer bonding agent 3B. As a result, the ends of the glass fibers mixed in the inner bonding agent 3A are also covered with the outer bonding agent 3B, so there is no risk of injury even if the body comes in contact with it from the outside, making it extremely safe. The external appearance of the inner bonding agent 3A may be in the form of a paste or a tape. For example, as shown in Fig. 4 and Fig. 6, a tape made of a glass fiber tape woven into a mesh shape is used as a core material and the outside is covered with a modified vinyl ester resin (product name: Ripoxy VS-
1000C) may be used. Here, the reinforcing fiber to be impregnated may also be a strand mat of glass chops, a nonwoven fabric of organic fibers, or a combination thereof. In this case, the ends of the glass fibers are not exposed, but since there is a slight step at the overlapped portion of the tape, the surface can be coated with the outer bonding agent 3B to give a smooth surface finish. A typical example of a structure using such a rope joining structure is a net. Of course, this net may be used for exercise or play, as a protective net, or for any other purpose. Furthermore, since the outer bonding agent 3B is made of a photocurable synthetic resin, it can be colored as appropriate. Therefore, as shown in FIG. 9, by color-coding the outer bonding agent 3B of the rope overlapping part that becomes the connecting part 10 of the net N, it can be used for games and play with distinguishability, and the range of use can be reduced. can be expanded. In addition, the types of inner and outer bonding agents used in this invention are of course not limited to those in the above embodiments, and may be selected depending on the intended use of the structure using the rope bonding structure. You can choose.

[Effect of the idea]

As described above, in this invention, the ropes are joined using a synthetic resin that is soft and has adhesive properties and contains reinforcing fibers, so the synthetic resin material penetrates into the gaps between the ropes, eliminating gaps and widening the contact area to make the ropes strong. It becomes possible to join. In addition, since the outside is integrally covered with a photocurable synthetic resin, even when a structure using a rope joint structure is installed outdoors, it can improve its durability without deteriorating. Furthermore, even if the ends of the reinforcing fibers contained in the inner bonding agent are exposed, they are covered with the outer bonding agent, so that a smooth outer surface can be formed. It is also possible to add an appropriate shape to the outer surface made of the outer bonding agent, such as integrally forming a number of hemispherical convex portions for anti-slip purposes. The rope joint structure formed in this way is firmly fixed, so even if a load is applied to the net, there will be no displacement of the knots (connections) or sagging or loosening of the rope, which is seen in conventional nets. It is possible to maintain the tension of the network and increase reliability. The effect of this invention can be said to be revolutionary, as the production of a net using this rope joining structure can be extremely labor-saving and reduce costs.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the rope joining structure of this invention, Fig. 2 is a sectional view thereof, Fig. 3 is a perspective view showing the formwork material, and Fig. 4 is a tape-shaped inner bonding agent. FIG. 5 is a sectional view of the different embodiments used, FIG. 6 is a partially cutaway sectional view of a tape-shaped bonding agent, and FIG. 7 is a sectional view of a different embodiment in which small holes are provided. 8 are cross-sectional views showing different embodiments in which the bonding agent is divided into inner and outer parts, and FIG. 9 is a view showing a part of the net in which the bonding agent is colored. 1...One rope, 2...The other rope, 3
A...Inner bonding agent, 3B...Outer bonding agent, 4...
One formwork material, 5...other formwork material, 8...one small hole, 9...other small hole, 10...connection part, P
...Drive pin.

Claims (1)

[Claims for Utility Model Registration] (1) By overlapping ropes formed by converging a plurality of filamentary wires or fibers, or by overlapping the above-mentioned rope and rod material, and joining the overlapping parts of the ropes. In the structure, the rope overlapping portion is coated with an inner bonding agent made of a soft and adhesive synthetic resin containing reinforcing fibers, and the gap between the rope overlapping portions is closed by applying pressure to the inside of the rope overlapping portion. The inner bonding agent is cured while being penetrated between the twisted grooves of the rope, and the outside thereof is integrally coated with an outer bonding agent made of a photocurable synthetic resin having adhesive properties and fixed by light irradiation. A rope joint structure characterized by forming a layered connecting part. (2) The rope joining structure according to claim 1, wherein the inner joining agent is made of a paste-like synthetic resin mixed with chip-like glass fibers. (3) The rope joining structure according to claim 1, wherein the inner joining agent is made of a photocurable synthetic resin impregnated with a strand mat of glass hops or a nonwoven fabric of organic fibers. (4) The rope joining structure according to claim 1, wherein the joining agent is appropriately colored. (5) The rope joining structure according to claim 4, wherein the rope is formed into a net shape, and the connecting portions fixed to the overlapping portions of the ropes are color-coded.