JP2002038386A - Rope for sailboat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide rope for a sailboat, excellent in sail-operating property and handling property and retaining a high breaking strength, a low breaking elongation, flexibility and shape-holding properties in the rope for a sailboat having 6-14 mm fiber diameter. SOLUTION: This rope for sailboat having 6-14 mm separated diameter is obtained by using 12 core-forming yarns formed by doubling a prescribed number of fine denier synthetic fibers having >=20 cN/dtex breaking strength and <=5.0% breaking elongation and twisting by 40-100 twists/m, braiding by diagonally knitting one of the core-forming yarns with the two other core- forming yarns to form a core material, braiding and covering the outside of the core material by using 24 braiding and covering yarns formed by doubling a prescribed number of polyester fine denier fibers having >=10 cN/dtex breaking strength and <=10.0% breaking elongation and twisting by 40-100 twists/m to make a braided rope, performing a heat treatment on the braided rope while imparting a loaded elongation in 12-24% range to provide >=10.0% its breaking elongation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yacht rope, and more particularly to a yacht rope capable of operating accurately and easily even under drastically changing marine weather.

[0002]

2. Description of the Related Art In recent years, the improvement of living standards and the increase of leisure have been combined, and the trend toward marine leisure has been increasing, and the number of yachts has been rapidly increasing. The yacht is designed to operate while sailing and steering while grasping the complicated and drastically changing wind direction, wind speed or tide, etc., so that the main seat, jib sail or spinnaker etc. can be properly operated in the cockpit of the steering seat. Many types of yacht ropes are guided and collected. Since the mainsail and spinnaker are formed with a very large area and are exposed to strong wind pressure or contain wind, high strength and low elongation are required for yacht ropes for sailing. In some cases, the height of the mainsail is extended to several meters, so the yacht rope is used in an extremely long state.In addition, sheaves and deck blocks and other pulleys are used everywhere in order to facilitate sailing. What is used.

[0003] For this reason, yacht ropes vary in length depending on the boat length and the object to be used, but generally have a diameter of about 3 mm to about 14 mm and a breaking strength of 3 mm in diameter. 3
In the case of 00 kg or more and a diameter of 12 mm, a size of about 3000 to 7000 kg is required, and in order to maintain more accurate sailability. Its elongation at break is at most 1
0.0% or less, and the shape of the circular cross section is not deformed when sailing through a sheave or deck block, and it can slide on a sheave or deck block with sufficient flexibility. In addition, it is also required to prevent the occurrence of looseness due to rigidity at the time of winding and rewinding to the winch, and it is also important that the edge of the yacht rope can be spliced for locking or coupling. I have.

[0004] By the way, ropes have been formed by twisting a required fiber material, forming a strand having a required diameter, and twisting two or three strands of the strand. Therefore, when an excessive impact load is applied, or when a repeated load is applied or relaxed, the twist balance is broken and kink is generated. For this reason, rescue ropes, including yacht ropes, have been replaced by braided ropes. Thus, the structure of the braided rope is such that the required number of required synthetic fiber materials is twisted on a composite yarn to form a yarn of a required diameter, and then the eight yarns are braided into eight strokes. It is common to have a 16-stroke configuration in which 16 pieces are braided or a 32-stroke configuration in which 32 pieces are braided.

However, in the braided rope, a hollow portion is inevitably formed because the yarns are braided into a circular cross section, and the hollow portion becomes firmer and the cross sectional shape becomes rounder as the braiding density increases. It has characteristics. On the other hand, since a yacht rope is subjected to a large load as well as an impact in practical use, a braided rope having an eight-stroke structure significantly collapses the hollow portion and deforms the cross-sectional shape. In the configuration, a large elongation occurs due to the elongation deformation of the braided structure. In addition, in the braided rope, since the yarn configuration and the diameter of the yarn are regulated with respect to the braided rope diameter, the braided rope having such a configuration cannot be used for a yacht rope.

Accordingly, the current yacht rope is shown in FIG.
By braiding the outer peripheral surface of the high-strength and low-elongation fine-fiber synthetic fiber A as shown in FIG. The yarns C are formed into a required thickness by using appropriate synthetic fibers. However, since the current yacht rope cannot be spliced, it is necessary not only to prepare special fasteners and couplings, but also to maintain high strength and shape retention, and to firmly knit and wrap the braid. The rigidity of the braided rope to be formed is remarkably increased due to the use of the core body that has been bundled, and especially the thick one having a diameter of 6 mm or more has excessive rigidity so that the sliding of the sheave or the deck block cannot be smoothly performed. Also, in the winding and rewinding operation on the winch, many troubles occur due to the rigidity. Furthermore, as a fatal problem, the braiding of the core body and the outer peripheral surface of the core body in which the synthetic fiber material is bundled in parallel with the repeated application and relaxation of the load during use or the curved sliding of the sheave or deck block during sailing The wrapping causes slippage, resulting in inhomogeneous physical properties of the yacht rope, or deformation of the circular outer shape, which causes various troubles with use.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve these problems of the current yacht rope, and the present invention provides a high breaking strength for a yacht rope having a diameter of 6 mm to 14 mm. Another object of the present invention is to provide a yacht rope which has extremely low elongation at break, flexibility and shape retention, and thus has excellent sailability and handleability.

[0008]

In order to solve the above-mentioned problems, the technical means used in the present invention has a breaking strength of at least 20 cN / dtex and a breaking elongation of 5.0%.
By using the following fine fineness synthetic fibers, the required number thereof is twisted in the range of 40 to 100 times / m on the plied yarn to form a core forming yarn with limited elongation due to twisting, In order to reduce the elongation of the tissue deformation due to the braiding and to braid the cross section in a circular shape with good shape retention, 12 of the core forming yarns are used, and one of the core forming yarns is used for the other. A braided rope in which two core forming yarns are twilled and braided is used as the core. Then, on the outer peripheral surface of the core body, a polyester fine fiber having excellent breaking resistance having a breaking strength of at least 10 cN / dtex or more and a breaking elongation of 10.0% or less is used. The knitted yarn is twisted at a rate of 40 to 100 times / m to form a braided wrapped yarn, and the braided wrapped yarn is wrapped and braided using 24 of the braided wrapped yarns. Form braided rope of diameter. Since the braided rope thus formed contains a mixture of strains inherent in the fine-fiber synthetic fiber material, strains and spots generated at the time of yarn formation, and shrinkage of the tissue associated with the braided braided rope. The present invention is directed to a yacht rope having a breaking elongation of 10.0% or less by performing a heat treatment while applying a load elongation of 12 to 24% to the rope. Furthermore, since many yacht ropes are guided and concentrated on the upper deck block, it is necessary to identify many yacht ropes for proper sailing. The present invention resides in the configuration of a yacht rope in which a suitable number of the ropes are colored in a suitable hue.

[0009]

Since the present invention has the above-described configuration, it has the following functions. That is, the core has a breaking strength of at least 20 cN / dtex or more and a breaking elongation of 5.
Using 0% or less fine-fiber synthetic fibers, and using 12 core-forming yarns obtained by twisting the required number of fine-fiber synthetic fibers in the range of 40 to 100 times / m on the plying yarn, A braided rope in which one of the core-forming yarns is twill-knitted and braided with the other two core-forming yarns is used for the core, so that the yarn properties of high strength and low elongation are utilized. In addition, the hollow portion is not formed, and the cross-section is braided into a substantially circular shape, so that the shape retention is significantly improved, and the braided braid has an elongated braid equivalent to substantially six strokes in the length direction. Because of the structure, the elongation of the core-forming yarn and the elongation due to the deformation of the structure are significantly restricted even when a strong load is applied. In addition, since the braid is braided, it is extremely flexible in combination with the fineness of the original yarn and can be flexibly coped with bending when sailing. Since the core is a braided rope, its outer peripheral surface , Many irregularities related to the twill braid appear.

The outer peripheral surface of the core made of such a braided rope has a breaking strength of at least 10 cN / dte.
x knitting and wrapping using 24 yarns obtained by twisting polyester fine fibers having a breaking elongation of not less than x and a breaking elongation of not more than 10.0% in a range of 40 to 100 times / m on a required number of plied yarns. The braided rope that is formed by combining the flexibility of the braided rope forming the core and the flexibility of the braid wrapping of the outer peripheral surface to form a braided rope is extremely flexible regardless of the diameter. Since the core has a circular cross section and retains shape retention due to the knitting of twelve core forming yarns, 24 knitting and wrapping yarns are provided on the outer peripheral surface of the core. The braided rope formed has a cross-sectional shape close to a perfect circle, and the shape and shape retention are remarkably enhanced. In addition, many irregularities due to braiding appear on the outer peripheral surface of the core body of the present invention, and the outer peripheral surface of the core body is further braided and wrapped using 24 yarns. However, even if the shed or the deck block is skewed in a curved manner, the core body and the braid do not slip or slip, and uniform physical properties and shapes are maintained for a long period of time. Also, the braided rope formed by braiding and enclosing the outer periphery of the core body is heat-treated while applying a load elongation at an appropriate elongation ratio of 12 to 24%. The elongation of the braided structure relating to the braided knitting is fixed, and the occurrence of the elongation due to the tissue deformation is prevented even in practical use.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. In the present invention, in order to counter a load applied due to a huge wind pressure and wind in a large area such as a mainsail or a spinnaker, the present invention is not limited thereto. Even if the diameter is about 6 mm, the breaking strength is about 1000 to 1600 kg or more. If the diameter is about 12 mm, the breaking strength is about 320.
Since it is required to have a weight of 0 to 7000 kg or more and to be used in a long length, it is desired to have a small elongation after agile and accurate sailing, and preferably to have a breaking elongation of 10.0% or less. In addition, from the viewpoint of operability, flexible and stable physical properties and shape retention over a long period of time are required, and from the viewpoint of handling, it is also desired that splicing be possible.

Therefore, in order to realize such a breaking strength, it is necessary to impart high strength and low elongation performance to the core body 2 which greatly affects the breaking strength and the breaking elongation. Figure 1
Is an explanatory view of the core-forming yarn 1, wherein the core-forming yarn 1 uses fine-fiber synthetic fiber 1A having a breaking strength of at least 20 cN / dtex or more and a breaking elongation of 5.0% or less. Specific examples of the fine-fiber synthetic fibers 1A include polyethylene high-strength yarn (trade name: Dyneema) and polyaramid fibers (trade names: Vectran, Technora, Kevlar) and the like. These fine-fiber synthetic fibers 1A are made of a single fiber having a fineness desired from the viewpoint of imparting flexibility to the core 2, and the single-fiber fineness should be at most 30 cN / dtex or less. It is.

The core forming yarn 1 is formed by twisting the required number of the selected fine-fiber synthetic fibers 1A in the range of 40 to 100 times / m on the composite yarn. In such a case, the number of plied yarns of the fine-fiber synthetic fibers 1A in forming the core-forming yarn 1 is determined by the required diameter and breaking strength of the core 2 to be knitted and the core-forming yarn 1 constituting the divided diameter. And the breaking strength of the fine-fiber synthetic fibers 1A. Further, the reason why the twisting is required at least 40 times / m or more is to prevent an enormous load from being applied to the single yarn of the fine-fiber synthetic fiber 1A and to disperse and add the entire core-forming yarn 1 to the core. This is because the braiding operation is performed efficiently, and if the twisting exceeds 100 turns / m, it is to prevent the occurrence of elongation due to twisting when a load is applied.

The present invention also employs specific technical means for forming the core 2 by braiding the core forming yarn 1 thus formed. That is, the core body 2 has a breaking strength against a huge load applied in practical use of the present invention and a low elongation at break related to sailability, and has a diameter of 6 to 14 mm.
The braided rope is used as the core body 2 because flexibility and shape retention that can maintain a cross section related to operability in a circular shape are required even with a large diameter of mm. Thus, braided ropes are generally used in eight strokes formed by braiding eight yarns, 16 strokes in which 16 yarns are braided, or 32 strokes in which 32 yarns are braided. However, as a characteristic of the braided rope, it is braided while forming a hollow portion in the center thereof, and the hollow portion is formed somewhat firmly as the number of yarns increases and the braid density increases, but on the other hand, the hollow portion is formed. Due to the formation of the portion, the amount of the fine fineness synthetic fiber 1A used per diameter is remarkably reduced, and it becomes impossible to maintain the breaking strength against the application of the load, and the knitting and wrapping on the outer peripheral surface of the core body 2 is performed. The hollow portion is deformed even when worn, making it difficult to realize the circular cross section of the present invention. Furthermore, when the braid tightly adheres, a large elongation occurs due to deformation of the braid structure when a load is applied.

Therefore, when forming the braided rope of the core 2, as shown in FIG. 2, twelve core-forming yarns 1 are replaced by one core-forming yarn 1 and two other core-forming yarns 1. By knitting each piece into a twill braid, it is braided with only the core forming yarn 1 having substantially no hollow portion, and has a cross-sectional shape of substantially circular, which is equivalent to 6 hits in the longitudinal direction. The core body 2 having almost no deformation of the braided structure even when a load is applied is formed with the structured structure. In addition, on the outer surface of the core 2, irregularities due to the twill braid of the core forming yarn 1 also appear.

A braided wrap 3 as shown in FIG. 3 is applied to the outer peripheral surface of the core body 2 thus formed, and a braided rope 4 for the present invention is formed. The braided and wrapped cloth 3 serves to protect the core body 2 from external impacts in practical use and, particularly, to abrasion during sailing, to smooth the outer surface, to improve the external appearance, and to identify the display. It is responsible for. Therefore, when forming the braided and wrapped material 3, a material which has these required characteristics and does not impair the physical properties of the core body 2 is required. For this reason, the polyester fineness fiber 3A is selected, and as the polyester fineness fiber 3A,
A braid having a rupture strength of at least 10 cN / dtex or more and a rupture elongation of 10.0% or less is used. The yarn 3B is formed. Of course, the twisting range of the braided wrapping yarn 3B is based on the same reason as the core forming yarn 1 described above, and the specific thickness of the braided wrapping yarn 3B is determined by the required diameter. And core body 2 to be braided and wrapped 3
Is determined by, for example, the division diameter of The braided wrapping rope 3 is formed by wrapping the outer peripheral surface of the core body 2 while braiding the 24 braided wrapping yarns 3B with each other. In such a case, the knitting density using 24 knitting and wrapping yarns 3B is based on the optimal results derived from performance tests and practical tests in relation to the knitting density of the core body 2.

Thus, as shown in FIG. 3, the braided rope 4 is formed by applying the braided wrapping 3 to the outer peripheral surface of the core body 2. The cored body 2 is formed on the braided rope 4. Elongation caused by twists inherent in the core-forming yarn 1 and the braided wrapping yarn 3B, as well as the distortion and spots inherent in the fineness synthetic fibers 1A used for the polyester fiber 3A used for the braided wrapping 3; Elongation as much as about 20 to 30% is mixed due to shrinkage accompanying braiding of the core body 2 or braiding such as braiding of braid 3, or elongation deformation of the braided structure due to load application. Therefore, the braided rope 4 is subjected to a heat treatment at a required temperature while applying a load elongation at a rate of 12 to 24% so that the elongation at break is 10.0%.
By performing the following, the yacht rope 5 of the present invention is obtained. There is no particular limitation on the heat treatment means. Desirable examples include a high-frequency heat treatment apparatus and a pressurized steam heat treatment apparatus. However, since the apparatus becomes expensive, a means as shown in FIG. 4 is proposed as a simple heat treatment apparatus. That is, such a heat treatment means causes the braided rope 4 to travel between the supply roll 6A and the supply 6B so that a load elongation is substantially added in the range of 12 to 24%, and the temperature is substantially reduced in the vicinity of the supply roll 6A. This is made possible by providing a preheating bus 6C of 60 to 80 ° C., immersing in the preheating bus for preheating, and then running for several minutes in a dry heat bath at a temperature of approximately 110 to 130 ° C.

Hereinafter, specific examples of the yacht rope of the present invention and the performance thereof will be described. Polyethylene high-strength yarn 1600 d / 15
60F fine fineness synthetic fiber is 60
A core forming yarn is prepared by twisting the cores twice, and a braid is formed using twelve of the core forming yarns such that one of the core forming yarns is twill-knitted with two of the other core forming yarns. Then, a core having a circular section without a hollow portion is formed. On the other hand, 4 fibers of polyester synthetic fiber 1000d / 96F are combined and 1m
A braided wrapping yarn is formed by adding 60 twists per contact, and the outer circumference of the core is braided and wrapped using 24 braided wrapping yarns. 8.2
A 2 mm braided rope was made. 16 braided ropes
Heat treatment is performed at 120 ° C. for 5 minutes under the condition of% load elongation to form a yacht rope of the present invention having a diameter of 8.06 mm. The physical performance of this yacht rope is 2890 kg breaking strength,
The elongation at break was 8.9%.

[0019]

As described above, the present invention is applied to a yacht rope which is frequently used as a yacht rope and has a diameter of 6 to 14 mm where a huge load is applied to the sail. The core-forming yarn forming the braided rope has a breaking strength of 20 cN / d.
A high-strength, low-elongation, fine-fiber synthetic fiber having a breaking elongation of 5.0% or less and a tex of not less than tex is used. There is no elongation caused by the above, and one of the core-forming yarns is twill-knitted with two of the other core-forming yarns using twelve of the core-forming yarns. In the direction, the braided structure substantially close to 6 strokes is braided in a sufficiently stretched state, and since there is no hollow portion and the cross-section is braided in a substantially circular shape, it can sufficiently resist even when a huge load is applied. It can be handled with low elongation. Furthermore, the outer surface of the core body has braided knitted irregularities due to twill knitting, so that the core body and braided wrapper are tightly adhered to the outer peripheral surface of the core body by braided wrapping yarn. Even under severe use, there is no occurrence of slippage or slippage between the core body and the braided wrapping, uniform properties and shapes are maintained over a long period, and excellent sailability is exhibited. Furthermore, since the present invention uses a braided rope as the core body, it is flexible regardless of the diameter and has excellent operability irrespective of the diameter, and can be spliced so that it can be appropriately connected and terminated. It is a yacht rope with many features such as convenience.

[0020]

[Brief description of the drawings]

FIG. 1 is an explanatory view of a core forming yarn.

FIG. 2 is an enlarged explanatory view of a core body.

FIG. 3 is an explanatory diagram of the present invention.

FIG. 4 is an explanatory diagram of a heat treatment method.

FIG. 5 is an explanatory view of a conventional yacht rope.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 core forming yarn 1A fine-fiber synthetic fiber 2 core 3 knitting and wrapping 3A polyester fine-filament fiber 3B knitting and wrapping yarn 4 knitting rope 5 Yacht rope of the present invention

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B153 AA07 AA26 AA32 AA41 BB01 BB20 CC13 CC21 CC23 EE02 EE18 FF15 GG01 GG40

Claims (2)

[Claims] 1. A braided rope having a core having a braided rope and a braided outer peripheral surface having a diameter of 6 to 14 mm and a breaking strength of at least 20 cN / dtex and a breaking elongation of 5 One of the core-forming yarns, using a fine-fiber synthetic fiber of not more than 0.0%, and using a required number of twelve core-forming yarns twisted in a range of 40 to 100 times / m on a plied yarn. Is formed by twill knitting and knitting two of the other core forming yarns, and the breaking strength of the core is 1
Twenty-four braided and wrapped yarns made of polyester fine-fiber fibers having a breaking elongation of not less than 0 cN / dtex and not more than 10.0% and twisting the required number of yarns in the range of 40 to 100 times / m on a plying yarn. The outer surface of the core body is braided and wrapped, and the formed braided rope is subjected to a heat treatment by applying a load elongation of 12 to 24%, so that the elongation at break becomes 10.0% or less. A yacht rope characterized by being formed. 2. The yacht rope according to claim 1, wherein an appropriate number of braided and wrapped yarns are appropriately colored in a hue for identification.