KR101224753B1 - A rope which having double structure of right-direction rope and left-direction rope - Google Patents

Abstract

PURPOSE: A composite rope of a dual structure is provided to enhance high strength and excellent abrasion resistance. CONSTITUTION: A composite rope of a dual structure comprises an outer protection rope part(160) which protects an inner protection rope part by twisting a plurality of unit outer ropes(168) around an inner core rope part(120) in a right direction. The inner core rope part comprises a plurality of inner core ropes(122). The outer core rope is fabricated by twisting a plurality of high tensile fiber yarns(14) in a left direction.

Description

A rope which having double structure of right-direction rope and left-direction rope}

The present invention relates to a rope, in particular, a plurality of left-right directional ropes comprising an inner core rope part which is twisted in a left direction at the center, and an outer protection rope part that is twisted in a right direction around the inner core rope part; ; The inner core rope part twisted in the right direction is located at the center, and the right-left end is made of the outer protection rope part twisted in the left direction around the inner core rope part and made of the same number of strands as the left-right rope. With directional rope; The left-right direction rope and the right-left direction rope is configured to relate to a composite rope of a dual structure characterized in that the twist is made in an alternately arranged state.

Ropes used by various means in various industrial fields are roughly classified into fiber ropes made of synthetic fibers and wire ropes made of twisted steel wires with fibers as cores. Wire ropes have a much stronger and harder advantage than fiber ropes, but have a disadvantage in decreasing elongation, and the field of application of fiber ropes is gradually expanded as high-strength yarns having superior strength and elasticity as compared to near-natural fibers are developed.

However, when working with a fiber rope, if the surface is in contact with a rough object, the surface of the fiber rope is often severely damaged by friction, so the structure of the fiber rope is similar to that of the inner rope and the outer rope. A large number of dual structures have been proposed. In this case, the effect of remarkably reducing the breakage of the rope due to the surface damage of the fiber rope is expected to some extent.However, due to the property of the double structure rope, when the tension acts on the rope, the inner rope and the outer rope are inclined separately. As a result, there was a problem that the reliability of the intended strength did not meet expectations.

In order to solve this problem in the double rope, the applicant has proposed a configuration such as the Republic of Korea Patent No. 0622565, Republic of Korea Patent No. 0,080,741. The former is configured to bind the inner rope and the outer rope through the adhesive member 300 between the inner rope 100 and the outer rope 200 as shown in FIG. 8, and the latter is the inner rope as shown in FIG. 9. While interposing the mesh net 300b between the 100 and the outer rope 200, the inner rope and the outside are tightly bound to the mesh net using the adhesive 300a.

As such, the Republic of Korea Patent No. 0622565 and the Republic of Korea Patent No. 0741741 prevent the mutual appearance of the inner rope and the outer rope constituting the double rope by using a separate adhesive means. These configurations can be expected to have a desired effect when the tension on the rope is not so great, but when the tension on the rope is significant, such as a large structure or a large ship, as shown in FIG. There was a problem that the rope did not function properly because it could not tolerate it.

Republic of Korea Patent No. 0622565, Republic of Korea Registered Patent No.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a double rope that can ensure high reliability for strength even without a separate bonding means between the inner rope and the outer rope. have.

In order to achieve the above object, the present invention includes a plurality of unit outer ropes 168 having an outer protection rope part 160 that twists and protects the inner core rope part 120 in a right direction. Rope portion 120 is composed of a plurality of inner core ropes 122, each of the inner core ropes 122 is made of a plurality of high-strength fibers 12 twisted to the left direction, each of the outer ropes 168 It consists of an outer core rope 164 and an outer protection rope 166 twisted around the outer core rope 164 in a left direction, wherein the outer core rope 164 is left of a plurality of high tension fiber yarns 14. Twisted in the direction, the outer protective rope (166) and the left-right rope (100) is made by twisting a plurality of elastic fiber yarn 16 in the left direction; A plurality of unit outer ropes 268 is made of an outer protection rope portion 260 to twist the protection around the inner core rope portion in the left direction, the inner core rope portion 220 is a plurality of inner core rope ( 222 and each of the inner core ropes 222 is made by twisting a plurality of high-strength fiber yarns 22 in the right direction, and each unit outer rope 268 is an outer core rope 264 and the outer core rope ( 264) is made of an outer protection rope 266 twisted around in the right direction, the outer core rope 264 is made by twisting a plurality of high-tensile fibers (24) in the right direction, the outer protection rope (266) A right-left rope 200 made by twisting a plurality of elastic fiber yarns 26 in a right direction; It is characterized in that the left-right direction rope 100 and the right-left rope 200 each made of a plurality of identical strands are twisted in a state arranged alternately with each other.

The unit outer rope 168 constituting the outer rope part 160 of the left-right direction rope 100 is composed of a plurality of outer protection ropes 166 bundles, the outer rope of the right-left rope 200 The unit outer rope 268 constituting the part 260 may be formed of a plurality of bundles of the outer protective rope 266.

Each of the high tension fiber yarns 12, 14, 22, and 24 is made of any one material selected from ultra high molecular weight polyethylene, metallocene polyethylene, aromatic polyamide, and liquid crystal polymer, and the elastic fiber yarns 16 and 26. Each may be made of any one material selected from polyester or nylon.

In the present invention, in the construction of a double rope consisting of an inner rope and an outer rope, the inner rope uses a high tension fiber yarn, and the outer rope proposes a configuration in which the high strength fiber yarn is surrounded by the elastic fiber yarn, thereby providing high strength and friction. The wear resistance is excellent.

In addition, the present invention proposes a composite rope in which the left-right rope in which the basic twist is in the left direction and the right-left rope in which the basic twist is in the right direction alternately intersect with each other. Proportionally, restoring force is generated in the opposite direction of each twisted direction to achieve structural integration, so that adjacent ropes can be kept in close contact without intervening a separate adhesive member.

1 is a schematic appearance configuration diagram of a composite rope consisting of two strands of left-right rope and two strands of right-left rope as an example according to the present invention.
Figure 2 is a schematic coupling configuration of the inner core rope portion and the outer protective rope portion in the composite rope of Figure 1 example.
3 is a detailed internal configuration of the left-right rope in the composite rope of the FIG. 1 example.
4 is a detailed internal configuration of the right-left rope in the composite rope of the FIG. 1 example.
5 is a schematic appearance configuration diagram of a composite rope consisting of six strands of left-right rope and six strands of right-left rope as another example according to the present invention.
Figure 6 is a schematic coupling configuration of the inner core rope portion and the outer protective rope portion in the composite rope of Figure 5 example.
7 is a detailed internal configuration of the left-right rope in the composite rope of the FIG. 5 example.
8 is a configuration diagram of a conventional double rope.
9 is another configuration of the conventional double rope.
Figure 10 is an example of the inner rope and the outer rope coupling surface is broken by the high tension applied to the conventional double rope.

Preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings, in which embodiments of the present invention are not directly related to the technical features of the present invention, or in the art to which the present invention pertains. The detailed description of the matters apparent to those skilled in the art will be omitted.

The composite rope according to the present invention has a left-right direction rope which is located in the center and has an inner rope core part having a basic twist in a left direction and an outer protective rope part wrapped in the inner rope core part and a basic twist in a right direction. The inner rope core part is located in the center and the basic twist is in the right direction and the inner rope core part is enclosed and the right-left rope is composed of the outer protection rope part in which the basic twist is in the left direction. The left-right direction rope and the right-left direction rope is characterized in that it consists of a dual structure consisting of alternately arranged. This double rope composite rope configuration will be described in detail with reference to the accompanying drawings.

1 is a schematic appearance configuration diagram of a four-strand composite rope consisting of two strands of left-right rope and two strands of right-left rope as an example according to the present invention, and FIG. 2 is a composite rope of FIG. Fig. 3 and Fig. 4 respectively show the internal configuration of the left-right rope and the internal configuration of the right-left rope in the composite rope of Fig. 1, respectively. Shows.

As disclosed in the figure, the left-right direction rope 100 is composed of an inner core rope portion 120 and an outer protective rope portion 160 surrounding the inner core rope portion 120.

The inner core rope part 120 is composed of a plurality of inner core ropes 122, each of the inner core ropes 122 is preferably made of a plurality of high-strength fiber yarn (12). The present invention proposes a case in which the high-strength fiber yarn 12 is twisted in the left direction in configuring the respective inner core ropes 122. The inner core rope part 120 is configured by using a high-strength fiber yarn that provides a high strength of the basic unit to ensure that the rope is stable to support the load transmitted even if a significant load load on the rope from the outside.

The high-strength fiber yarn 12 according to the present invention can be arbitrarily selected from materials that ensure a certain strength, ultra high molecular weight polyethylene (Ultra-High Molecular Weight Polyethylene, or UHMW-PE), metallocene polyethylene (Metallocene-catalyzed polyethylene), aromatic Polyamide, a liquid crystal polymer (Liquid crystal polyester, or LCP) may be made of any one selected.

Ultra high molecular weight polyethylene having an average molecular weight of approximately 1 million or more is known to have the highest impact resistance and high abrasion resistance among thermoplastics, and metallocene polyethylene produced by polymerization using a metallocene catalyst is known. Compared with polyethylene, it is known to have excellent thermal and mechanical properties such as transparency, strength, and elongation. In addition, the aromatic polyamide, also called aramid fiber (Aramid Fiber) is made of a very strong and straight molecular structure has excellent tensile strength and heat resistance, and the liquid crystal polymer, which is one of the super engineering plastics (heat engineering) It is characterized by strength.

The outer protection rope 160 is composed of a plurality of unit outer ropes 168, each unit outer rope 168 is the outer core rope 164, and the outer core rope 164 around the left direction It is preferable that it consists of the outer protection rope 166 which twists and protects. The outer core rope 164 is made by twisting a plurality of high-tensile fibers 14 to the left, each of the outer protective rope 166 is made by twisting a plurality of elastic fibers 16 to the left.

That is, the outer protective rope 160 is also similar to the inner core rope 120 structure described above, by twisting a plurality of high-tensile fibers 14 to the left to make the outer core rope 164, a plurality of elastic fibers Twist the yarn 16 to the left to form the outer protective rope 166, and then twist the outer protective rope 166 to the left again with the outer core rope 164 centered to twist the unit outer core rope 168. Will be protected.

It is apparent that the high tension fiber yarn 14 may be arbitrarily selected from the above materials, and the elastic fiber yarn 16 may be made of any one material selected from polyester or nylon having excellent wear resistance. That is, according to the present invention, the outer protective rope portion 160 constitutes a central portion by using high tensile fiber yarns, and proposes a configuration in which the outer protective rope portion 160 is protected by elastic fibers. While maintaining a constant strength, it is possible to actively prevent the rope surface from being damaged by frequent friction by the surroundings.

On the other hand, the present invention, in addition to the configuration as described above, in protecting the inner core rope portion 120 consisting of a plurality of inner core rope 122 by using a plurality of unit outer rope 168, the plurality of unit outer rope 168 proposes a configuration to protect the inner core rope portion 120 located in the center while twisting the inner core rope portion 120 in the right direction. That is, the elements constituting each of the inner core rope part 120 and the outer protective rope part 160 are basically all twisted in the left direction, but the outer protective rope part 160 has the inner core rope part 120. The configuration consists of twisting in the right direction.

This is to enhance the inner closeness in consideration of the left-right direction rope 100 itself is made of a double structure of the inner core rope portion and the outer protective rope portion. That is, when each of the high-strength fibers and elastic fibers are twisted in the left direction, the restoring force acts in the right direction. When the outer protective rope part is twisted in the right direction with respect to the inner core rope part, the restoring force acts in the left direction. will be. In this way, as each component is twisted in the left direction, the composite rope is able to increase the degree of engagement due to the forces in the opposite directions by appropriately counteracting the forces acting in the opposite direction to the internal restoring force acting in the overall right direction. Will be.

In addition, the right-left rope 200 according to the present invention is characterized by consisting of an inner core rope portion 220, and an outer protective rope portion 260 surrounding the inner core rope portion 220, which configuration As can be seen from the above-mentioned left-right direction rope 100 and has a similar characteristic.

That is, in the right-left rope 200, the inner core rope portion 220 is composed of a plurality of inner core ropes 222, each of the inner core ropes 222 is raised to a plurality of high-tensile fiber yarns 22 It is twisted in the direction. Except that the twisting direction of the individual fiber yarns and the individual inner core ropes is in the right direction, its construction and the properties thereof are the same as the inner core rope portions of the left-right rope. Of course, the high tension fiber yarn 22 may also be made of any one of the materials described above.

The outer protection rope part 260 is composed of a plurality of unit outer ropes 268, each of the plurality of unit outer ropes 268 are twisted in the left direction to protect the inner core rope portion 220 is located in the center The configuration is also substantially the same as the case of the left-right direction rope 100 described above.

That is, each unit outer rope 268 is composed of an outer core rope 264 and an outer protection rope 266 to twist and protect the outer core rope 264 around the right direction. In addition, the outer core rope 264 is made by twisting a plurality of high-strength fiber yarns 24 in the right direction, each of the outer protective ropes 266 is made by twisting a plurality of elastic fiber yarns 16 in the right direction. Here, the high tensile fiber yarns 24 may be made of any one of the above materials, and the elastic fiber yarns 26 may be made of any one material selected from polyester or nylon, and the characteristics thereof are as described above.

On the other hand, the present invention in configuring the composite rope using the left-right direction rope 100 and the right-left rope 200 of the configuration as described above, the left-right direction rope 100 and the right-left direction The case where the ropes 200 are prepared in the same strand and then twisted in a state where these are alternately arranged is proposed. This includes left-right ropes, right-left ropes, left-right ropes, right-left ropes, twisted and arranged in such an order, or left-right ropes as disclosed in FIG. The right-left rope may have the same number of strands, but each may be a unit, and may be twisted alternately with each other.

When the composite rope is made of the configuration as shown in FIG. 1, the effects thereof will be described with reference to FIG. 1 and the description of each of the above-described elements. As shown in Fig. 1, when the left-right rope and the right-left rope are each twisted alternately with each other as a unit, each high tension fiber and elastic fiber yarn are twisted in the left direction (solid line direction). The basic restoring force of the left-right direction rope 100 acts in the right direction (dotted line ① direction). In addition, the restoring force generated while the outer protective rope portion twists the inner core rope portion in the right direction acts in the left direction (dotted line ② direction).

On the contrary, the basic restoring force of the right-left rope 200, which is made by twisting each of the high tension fibers and the elastic fibers in the right direction (solid line direction), acts in the left direction (dotted line ③ direction). Further, the restoring force generated while the outer protective rope portion twists the inner core rope portion in the left direction acts in the right direction (dotted line ④ direction).

As such, when a load F is applied in a state in which different restoring forces are applied to each rope, the left-right ropes 100 which are in contact with the right-left rope 200 are in the right direction (dotted line ① direction). The right-left rope 200 which rotates toward the right-left rope 200 by a predetermined angle by the restoring force acting, and the right-left rope 200 which is in contact with the left-right rope 100 acts in the left direction (dotted line ③ direction). It rotates toward the left-right direction rope 100 by a predetermined angle by the restoring force. As a result, the left-right rope 100 and the right-left rope 200, which are in contact with each other, are in close contact with each other by the restoring force in the opposite direction acting on each other, and It maintains its state with proportional restoring force.

That is, the present invention improves the strength and wear resistance of the rope by using a fiber yarn having different characteristics of high-strength fibers and elastic fibers in forming the left-right rope and right-left rope respectively. Furthermore, by twisting each directional rope in different directions, then twisting each other in different directions and twisting them back together to form a composite rope, each directional rope has some degree of internal binding of itself. Resilient forces acting in opposite directions to each other allow the adjacent ropes to remain in close contact.

FIG. 5 shows a schematic appearance configuration diagram of a twelve-strand composite rope consisting of six strands of left-right rope and six strands of right-left rope as another example according to the present invention, and FIG. Schematic coupling configuration of the inner core rope section and the outer protection rope section in the rope, and FIG. 7 shows the internal configuration of the left-right direction rope in the composite rope of FIG. 5 example, respectively.

In this embodiment, the total number of strands is 12 in the composite rope, and the left-right rope 100 and the right-left rope 200 are characterized in that they are sequentially arranged and crossed. Specifically, this embodiment includes a left-right rope, a right-left rope, a left-right rope, a right-left rope,. . . As a case where they are arranged in a sequential order and are twisted with each other, they are similar to those of the above-described embodiment except for this arrangement.

Thus, this embodiment also basically, the left-right direction rope 100 is composed of the inner core rope portion 120 and the outer protection rope portion 160, the right-left rope 200 is also an inner core rope portion It consists of the 220 and the outer protective rope portion 260, each of the internal configuration and operation configuration is also the same, so the description thereof will be omitted. However, this embodiment is different from the above-described embodiment in that a plurality of unit outer ropes constituting the outer protection rope in each direction rope, which will be described with reference to FIG.

Figure 7 shows the internal configuration of the left-right direction rope 100, as disclosed the unit outer rope is characterized by consisting of a plurality of outer protective rope 168. That is, the outer protection rope 160 is composed of a plurality of unit outer ropes 168, each of the unit outer ropes 168 is composed of an outer core rope 164 and the outer protection rope 126.

Specifically, twisting the plurality of high-strength fibers 14 to the left to make the outer core rope 164, twisting the plurality of elastic fibers 14 to the left to form the outer protective rope 166, and then The outer protective rope 166 is twisted to the left again with the outer core rope 164 at the center. Although not disclosed, the right-left rope 200 also includes a unit outer rope made of a plurality of outer protection ropes, and each outer protection rope is made of an outer core rope and an outer protection rope, and the twist direction thereof is tactical. It is of course opposite to a left-right rope. This embodiment can provide a somewhat higher tensile strength than the above-described embodiment in that a plurality of unit outer ropes constituting the outer protective rope part are provided.

In the above description, but limited to the preferred embodiments of the present invention, but this is only an example, the present invention is not limited to this may be modified and carried out in various ways, and further technical features based on the technical spirit disclosed It will be apparent that it can be implemented in addition.

12, 14, 22, 24: high tensile fiber yarn 16, 26: elastic fiber yarn
100: left-right rope 120, 220: inner core rope portion
122, 222: inner core rope 160, 260: outer protective rope
164, 264: outer core rope 168, 268: unit outer rope
200: right-left rope

Claims (3)

A plurality of unit outer ropes 168 is made of an outer protection rope 160 to twist the right around the inner core rope portion 120 in a right direction, the inner core rope portion 120 is a plurality of inner core rope ( Each of the inner core ropes 122 is made of a plurality of high-strength fibers 12 twisted to the left, and each unit outer rope 168 is made of an outer core rope 164 and the outer core rope ( 164 is made of an outer protection rope 166 twisted around in the left direction, the outer core rope 164 is made by twisting a plurality of high-tensile fiber yarn 14 in the left direction, the outer protection rope 166 The left-right direction rope 100 is made by twisting a plurality of elastic fiber yarn 16 in the left direction;
The plurality of unit outer ropes 268 are formed of an outer protection rope part 260 that twists and protects the inner core rope part 220 in a left direction, and the inner core rope part 220 includes a plurality of inner core ropes ( 222, each of the inner core rope 222 is made by twisting a plurality of high-strength fiber yarns 22 in the right direction, and each unit outer rope 268 is an outer core rope 264 and the outer core rope ( 264) is made of an outer protection rope 266 twisted around in the right direction, the outer core rope 264 is made by twisting a plurality of high-tensile fibers (24) in the right direction, the outer protection rope (266) A right-left rope 200 made by twisting a plurality of elastic fiber yarns 26 in a right direction;
The composite rope of the dual structure, characterized in that the left-right direction rope (100) and right-left direction rope (200) each made of a plurality of identical strands are twisted in an alternately arranged state. The method of claim 1,
The unit outer rope 168 constituting the outer rope portion 160 of the left rope 100 is composed of a plurality of bundles of outer protection rope 166, the outer rope portion 260 of the right rope 200 The unit outer rope 268 constituting a composite rope having a dual structure, characterized in that consisting of a plurality of outer protective rope (266) bundle. The method according to any one of claims 1 and 2,
Each of the high tension fiber yarns 12, 14, 22, and 24 is made of any one material selected from ultra high molecular weight polyethylene, metallocene polyethylene, aromatic polyamide, and liquid crystal polymer, and the elastic fiber yarns 16 and 26. A double rope composite rope, characterized in that each made of a material selected from polyester or nylon.

Images