JP2718660B2 - String thread - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to easily form a knotted loop portion at the end of a stringing yarn, and more particularly
Regarding the beautiful and functional string thread that is rich in workability,
It is used in fields that require terminal processing such as decorative cords, cords, various industrial cords and ropes, fishing lines, fishery branch line traps, longline ropes, and sling belts.

[0002]

2. Description of the Related Art Conventionally, when forming a loop portion for binding to an annular member such as a ring, an eggplant, a sarkan, or the like at the end of various fishing lines, strings, ropes, or sling belts made of a cord, tying, Locking with metal fittings,
Alternatively, a method using a drip stop has been used.

[0003] However, in the case of tying, of course, the appearance is poor, but since the ends are fixed, the size and position of the loop cannot be freely changed, and the functionality is significantly reduced. I do. Furthermore, there was a drawback that the nodule strength was significantly reduced.

In the case of locking with a metal fitting,
There is a drawback that the lock breakage by the metal fitting at the portion forming the loop portion occurs very often, and also in this case, there is a drawback that the strength is greatly reduced. In addition, in the case of lashing by lashing, it can be used for loop processing of twisted yarn, but it is very difficult to work because it has a large number of yarns that make up lace yarn when applied to lace yarn. Is impossible.

Further, the present inventors have already proposed a string thread which can easily process a loop portion at a terminal portion prior to this application. In other words, this string is a bag-shaped sleeve or tube at the end, a hot melt adhesive, and heat-melt the yarn or tape made of them, to prevent the end of the string from breaking. Next, the uncoated portion is bent, and the coated end portion is inserted into the hollow portion inside the uncoated portion, and a loop of an arbitrary size is formed at the end of the cord thread. However, this string thread is not resin-processed in the length direction, so when it is cut at an arbitrary length for use, the cut end is easy to come apart, Unless the work of hot-melt bonding the bag-like sleeve or tube, the hot melt adhesive, and the thread or tape made of them is not rapid, the area to be separated becomes large and it is difficult to coat the terminal part. There is a problem that.

[0006] Further, since no resin is applied to the surface in the longitudinal direction, moisture enters between the knitting structures of the string-forming yarn in the case of industrial use outdoors, particularly in the case of fishing. As a result, since the drainage is poor, the water content increases, and the winding operation is very difficult. Also,
As mentioned above, the surface is not resin-processed, so it is weak against abrasion, deteriorates in abrasion resistance and is inferior in durability. There is. Furthermore, this string yarn uses monofilament yarn for each yarn, but if monofilament yarn is used, drainage is better than multifilament yarn,
In addition, although the water flow resistance is reduced, even in the case of a string made of a monofilament yarn, since there are also irregularities, for example, compared to a case where one thick monofilament yarn is used for a longline used as a fishing material, There is a problem that the flow resistance becomes much larger. For that purpose, one thick monofilament yarn is used as the main rope as the yarn used for the longline.
When loop processing is performed on a terminal by using a branch rope, only lock processing using a metal fitting can be performed, and lock breakage due to the metal fitting is likely to occur, and a reduction in strength cannot be avoided. In addition, there is a problem that, because of the lock processing, a cut accident may occur when hitting a hand or face during operation. Furthermore, when one thick monofilament yarn is used for the longline, there is a problem that the rigidity is too strong and the operability is poor.

[0007] In general, strings are often used after being processed by terminal processing.
In general, a protection device called an armor made of metal or plastic is provided inside the loop for the purpose of preventing abrasion cutting. Because string threads of various thicknesses are connected with the above-mentioned hard metal fittings and plastic products depending on the purpose, especially in the case of longline fishing that catches large fish such as tuna even in the fishery, to wind the longline at high speed, These are extremely dangerous when hitting the worker's hand, face, head, etc.
The emergence of improved and safe materials from field workers has been awaited.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems and to provide a beautiful and functional string yarn which is excellent in workability and which is not released by a terminal. It is assumed that.

[0009]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies in view of the above problems, and as a result, have come to invent a cord-forming yarn which has remarkably improved many conventional problems.

That is, the present invention relates to a string made of a natural fiber, a synthetic fiber, or a metal fiber, or an arbitrary number ratio of the natural fiber, the synthetic fiber, and the metal fiber combined alone or in an arbitrary ratio. Covered with a thermoplastic resin over the entire length in the length direction of the string made by combining with, at a portion separated by an arbitrary length from an end portion of the string,
The covering layer of the thermoplastic resin coated on the string is peeled off and cut off, and the end portion of the string thread covered with the thermoplastic resin is bent to form a portion where the covering layer is peeled off. The gist of the present invention is to insert a loop having an arbitrary size into an end portion by inserting the loop into an inner cavity portion.

In the following, the present invention will be described in detail. As the fiber used for the cord yarn of the present invention, any fiber may be used as long as it is a natural fiber, a synthetic fiber or a metal fiber. Synthetic fibers are the most suitable, considering their high strength and ease of handling, for example, multifilament yarns, monofilament yarns or aggregates of moderate thickness produced from synthetic resins such as nylon, polyester, polyolefin, and polyarylate. (Referring to a yarn in which a plurality of monofilament yarns are aggregated in consideration of rigidity for the purpose of use).

The metal fibers include stainless steel and metal fibers made of various alloys. These fibers may be used alone or in any combination to form a cord.

Further, in the case where a long fiber yarn made of a high-strength synthetic fiber or a metal fiber is used to make a cord, a sufficient adhesive effect can be obtained because the resin flows between the cord yarns, but a thick monofilament yarn is used. In this case, since the number of fibers used is reduced and the surface of the long fiber yarn is smooth, when the surface is later coated with a thermoplastic resin, it can be said that the adhesiveness between the fiber and the resin is not necessarily good. May not,
In such a case, when a spun yarn made of a natural fiber or a synthetic fiber is used in combination to improve the adhesiveness, the short fiber generated on the surface of the string yarn exhibits an anchor effect, and further adhesive strength is obtained.

Needless to say, in these cases, the same effect can be obtained by using various filament-processed yarns such as a Taslan-processed yarn. In general, there are two types of string yarns, single blade and double blade. The number of striking styles is eight, twelve, sixteen, etc. it can. After the surface of the string thread of the present invention is subjected to resin processing, it is peeled off and cut, and contracted by applying a compressive stress in the length direction to increase the diameter of the string thread and form a cavity therein. In order to insert the terminal portion coated with the same resin into the portion, a single-blade type string thread is particularly preferable.

The thermoplastic resin used in the present invention includes vinyl chloride, vinylidene chloride, urethane, acrylic, ethylene-vinyl acetate copolymer, nylon, polyester, polyethylene, polypropylene, and copolymers of these resins. Can be

Next, as shown in FIG. 1, the end portion 3 of the string 2 is provided with a coating layer 1 of a thermoplastic resin over the entire length in the longitudinal direction.
Is exfoliated and cut over an arbitrary length to expose the string thread 2 over an arbitrary length (see FIG. 2). To increase
The coating layer 1 from the point A to the point B where the stitch pitch is loose is inserted and inserted into the cavity inside the part 4 which has been peeled off (see FIG. 3). In FIG. 3, reference numeral 5 denotes a loop formed at the end of the string 1 of the present invention. The insertion length may be such that the terminal portion does not come off, but about a few cm is necessary to obtain a sufficient length that does not come off even if contraction and compression are repeated.

By the way, when the terminal portion is inserted into a portion of the string thread where the thermoplastic resin coating layer has been peeled off and cut,
As shown in FIG. 4, two or more places may be inserted into the main body-side string thread. In this case, the thermoplastic resin coating layer of the terminal portion to be inserted may be divided into a plurality of portions, and the present invention is not limited at all.

Since the end portion of the string made of the present invention is coated with a thermoplastic resin and is in contact with the inside of the string made of the main body, the coefficient of friction becomes very large, and as a result, it becomes difficult to slip.
A compressive stress is applied in the length direction of the main-body-side cord yarn, contracts, the diameter increases, and even if the pitch of the stitches is loose, the inserted terminal portion does not come out, and can be used in various fields with security.

In the present invention, FIGS.
May be provided by covering and contracting a bag-shaped sleeve or tube on the insertion insertion portions C and D shown in FIG. Since the entire length in the length direction of the string yarn of the present invention is covered with the thermoplastic resin, it becomes as if it were a single monofilament, and the water flow resistance, drainage, and abrasion resistance are further improved. For example, when used as a longline, if the string is stretched only by being tied over a long distance, the surface of the tied yarn is generally uneven, so that the water flow resistance increases, and the yarn is flown in the ocean current, Greatly deviated from the position where Therefore, it is important to cover the entire length of the cord yarn in the length direction with a resin and process it as if it were a single monofilament yarn to reduce the water flow resistance.

In addition, the contact pressure for holding the longline when winding up with a line holer is generally 120 to 130 kg / cm ^{2 for} a longline in which each yarn is made of a multifilament yarn.
80-90kg / for longline made of monofilament yarn
cm ² . In contrast, the longline according to the present invention has a weight of 50 to 60 kg / cm ² , requires a small winding power, and greatly improves workability.

Further, the present invention provides a cord made of a monofilament yarn as a synthetic fiber. This is because when creating a string thread of a certain thickness, even if it is combined with only multifilament yarn and covered with thermoplastic resin,
The string made is soft. Since the cord yarn of the present invention is used for various purposes, for example, when this cord yarn is used as a branch harris in longline fishing, the main core fiber constituting the cord yarn of the present invention is multi-filament. If the filament is tied only with the filament yarn, the flexibility will be superior, so the branching of the longline main body from the main rope cannot be performed quickly, and it is difficult to quickly attach it to the target water depth. A moderate rigidity is indispensable for branch harris because it will miss the best fishing season. Furthermore, in the case of making a thick string thread, as described above, the number of strands that can be used in a string-making machine, such as eight-stroke and 16-stroke, is limited. Becomes thicker. For this reason, it is difficult to obtain the desired rigidity. The present inventors have completed the present invention, paying particular attention to these points, and as a result, drainage and abrasion resistance have been further improved.

In summary, the present invention relates to a bag-like sleeve, a tube or a hot-melt adhesive and a thread or tape made of the same after the end portion of the above-mentioned cord yarn proposed before this application is formed. Are further improved. That is, the entire length in the length direction of the string thread is subsequently covered with a thermoplastic resin after the string is formed, and when a loop portion is formed at an arbitrary position, the resin at the portion where the terminal portion is inserted is peeled off and removed. Good, no other components are required, work can be easily performed in any place, and significant improvement in workability is recognized, greatly contributing to the industry that uses cord products. .

[0023]

Embodiments of the present invention will be described below. Embodiment 1 In preparing a cord yarn of the present invention, first, a string is formed using twelve nylon fiber 4200d / 700f multifilament yarns, and a thermoplastic resin is formed over the entire length in the length direction of the cord yarn. A vinyl chloride resin, which is a resin, was coated using a die-type coating machine. The vinyl chloride resin covering the portion between the length of 16 cm and the length of 8 cm from one end of this string was peeled off and cut. Next, a terminal portion that has been coated with the vinyl chloride resin is inserted into a portion where the vinyl chloride resin has been peeled off to form a loop portion. A loop portion is similarly formed on the other end portion of the main body-side string thread. The loop diameter was 4 cm in size.
Also, the length from the loop portion at both ends to the loop portion is 20c.
m, the loop portions at both ends were set on an autograph tester manufactured by Shimadzu Corporation, and the tensile strength was measured and evaluated by the numerical value.

Comparative Example 1 As Comparative Example 1, the same nylon fiber 4200d / 700f multifilament yarn as that of Embodiment 1 of the present invention was used.
Using this cord, the cord is inserted into the hollow portion of the cord string without coating any resin, and a cord having the same length as that of the first embodiment of the present invention is created. The test was performed.

Embodiment 2 Twelve 4400d monofilament yarns made of a nylon resin are used to make a cord, and a vinyl chloride resin, which is a thermoplastic resin, is coated with a die-type coating machine over the entire length of the cord in the longitudinal direction. Was used for coating. 8cm from 16cm length from one end of this string
The vinyl chloride resin coated in the part between the lengths of the above was peeled off. Next, a terminal portion that has been coated with the vinyl chloride resin is inserted into a portion where the vinyl chloride resin has been peeled off to form a loop portion. A loop portion is similarly formed on the other end portion of the main body-side string thread. The loop diameter was 4 cm in size. Also, the length from the loop part at both ends to the loop part is 2
It was set to 0 cm, and the loop portions at both ends were set on an autograph tester manufactured by Shimadzu Corporation, and the tensile strength was measured and evaluated by the numerical value.

Comparative Example 2 As Comparative Example 2, a 12400 monofilament yarn of 4400d made of the same nylon resin as in the second embodiment of the present invention was used to make a cord, and this cord was covered with any resin. Without being inserted into the hollow portion of the main-body-side lace thread, one having the same length as that of the second embodiment of the present invention was prepared and subjected to the same test.
Due to the rigidity of the monofilament, the end portion inserted into the hollow portion of the main-body-side lace thread was separated from the lace portion and protruded to the outside of the main-body-side lace thread.

Embodiment 3 Twelve monofilament yarns of 5500d made of polyester resin are used to form a cord, and a urethane resin which is a thermoplastic resin is applied to the whole length in the length direction of the cord by using a die-type coating machine. Coating was used. 10cm from 18cm length from one end of this string
The urethane resin coated at the portion between the cm lengths was peeled off. Next, the terminal portion, which is still coated with the urethane resin, is inserted into a portion where the urethane resin has been peeled off, thereby forming a loop portion. A loop portion is similarly formed on the other end portion of the main body-side string thread. The loop diameter was 4 cm in size.
Also, the length from the loop portion at both ends to the loop portion is 40c.
m, the loop portions at both ends were set on an autograph tester manufactured by Shimadzu Corporation, and the tensile strength was measured and evaluated by the numerical value.

Comparative Example 3 As Comparative Example 3, a monofilament yarn of 5500 d made of the same polyester resin as in Embodiment 3 of the present invention was used.
Two strings are used, and the string is inserted into the hollow portion of the main-body-made string without coating any resin, and a string having the same length as that of the third embodiment of the present invention is formed. And subjected to the same test. Due to the rigidity of the monofilament, the end portion inserted into the hollow portion of the main-body-side lace thread was separated from the lace portion and protruded to the outside of the main-body-side lace thread.

Embodiment 4 A string is formed using eight 8300d monofilament yarns made of a polyester resin, and a urethane resin, which is a thermoplastic resin, is coated with a die-type coating machine over the entire length of the yarns in the length direction. Coating was used. 10cm from 18cm length from one end of this string
The urethane resin coated in the portion between the lengths of m was peeled off. Next, the terminal portion, which is still coated with the urethane resin, is inserted into a portion where the urethane resin has been peeled off, thereby forming a loop portion. A loop portion is similarly formed on the other end portion of the main body-side string thread. The loop diameter was 4 cm in size.
Also, the length from the loop portion at both ends to the loop portion is 40c.
m, the loop portions at both ends were set on an autograph tester manufactured by Shimadzu Corporation, and the tensile strength was measured and evaluated by the numerical value.

Comparative Example 4 As Comparative Example 4, an 8300d monofilament yarn made of the same polyester resin as in Embodiment 4 of the present invention was used.
Two strings are used, and the string is inserted into the hollow portion of the main-body-made string without coating any resin, and a string having the same length as that of the fourth embodiment of the present invention is formed. And subjected to the same test. Due to the rigidity of the monofilament, the end portion inserted into the hollow portion of the main-body-side lace thread was separated from the lace portion and protruded to the outside of the main-body-side lace thread.

Embodiment 5 Six 4200d / 700f multifilament yarns made of nylon fiber and 4400d made of nylon resin
Using six monofilaments, the cords were alternately arranged and bound, and a vinyl chloride resin as a thermoplastic resin was coated over the entire length in the length direction of the cord using a die-type coating machine. From one end of this string,
The coated vinyl chloride resin was cut off at a portion between the length of 8 cm and the length of 10 cm. Next, a terminal portion that has been coated with the vinyl chloride resin is inserted into a portion where the vinyl chloride resin has been peeled off to form a loop portion. A loop portion is similarly formed on the other end portion of the main body-side string thread. The loop diameter was 4 cm in size. The length from the loop portion at both ends to the loop portion was 25 cm, the loop portions at both ends were set on an autograph tester manufactured by Shimadzu Corporation, and the tensile strength was measured and evaluated by the numerical value.

Comparative Example 5 As Comparative Example 5, six 4200d / 700f multifilament yarns made of the same nylon fiber as in the fifth embodiment of the present invention and six 4400d monofilaments made of a nylon resin were used alternately. The string is arranged and tied, and the tied string is inserted into the hollow portion of the main-body tied string without coating with any resin, and a string having the same length as that of the fifth embodiment of the present invention is formed. Tested. Due to the rigidity of the monofilament, the end portion inserted into the hollow portion of the main-body-side lace thread was separated from the lace portion and protruded to the outside of the main-body-side lace thread.

Embodiment 6 Nylon resin 4400d / 10f (440d /
f), a mono-filament yarn composed of ten mono-filament yarns (f) is woven using twelve mono-multi-filament yarns, and a vinyl resin, which is a thermoplastic resin, is coated with a die-type coating over the entire length of the woven yarn in the length direction. Coating was performed using a machine. The vinyl chloride resin covering the portion between the length of 16 cm and the length of 8 cm from one end of this string was peeled off and cut. Next, a terminal portion that has been coated with the vinyl chloride resin is inserted into a portion where the vinyl chloride resin has been peeled off to form a loop portion. A loop portion is similarly formed on the other end portion of the main body-side string thread. The loop diameter was 4 cm in size. Further, the length from the loop portion at both ends to the loop portion was set to 20 cm, and the loop portions at both ends were set on an autograph tester manufactured by Shimadzu Corporation.
Tensile strength was measured and evaluated by the numerical value.

Comparative Example 6 As Comparative Example 6, 12 mono-multifilament yarns of 4400 d / 10 f (10 monofilament yarns of 440 d / f) made of the same nylon resin as in Embodiment 6 of the present invention were used. The string was inserted into the hollow part of the string made of the main body without coating the string with any resin, and a string having the same length as that of the sixth embodiment of the present invention was prepared. Was served.

Table 1 shows the results of the tensile tests of Embodiments 1 to 6 of the present invention and Comparative Examples 1 to 6. From this table, it can be seen that the cord yarn of the embodiment of the present invention originally has It can be seen that the string thread of the comparative example can not be put to practical use because the inserted string portion comes off before exhibiting the inherent strength, while the string strength of the comparative example can be sufficiently exhibited.

In the tables, the water absorption and the abrasion resistance were evaluated by the following test methods. Water absorption rate Specimens were cut into 1m lengths, immersed in water for 3 minutes, pulled up, drained for 1 minute, weighed with a scale, and weighed on each non-immersed specimen. In contrast, the increased weight was expressed as a percentage. Abrasion resistance (edge method) As shown in FIG.
m, a load 8 of 2 kg was applied to the other end of the string 6 and the part for evaluating the abrasion of the string 6 was wound with emery paper CC-800CW No.9. 1. Make contact with the support rod 10 at a right angle
After a lapse of 0 minutes, the blank was set on an autograph tester manufactured by Shimadzu Corporation, the tensile strength was measured, and the blank was evaluated for the strength retention to the tensile strength. The larger the value, the smaller the decrease in power.

[0037]

[Table 1]

[0038]

As described above, according to the present invention, it is possible to easily produce a loop portion having no knot at the end, and to provide a beautifully-functional, highly-functional and highly workable string thread. , Decorative cords, cords, various industrial cords and ropes, fishing line, fishery branch line, tackle, longline ropes,
It can be used in fields requiring terminal processing such as sling belts, and as described above, brings beneficial effects in each field of use.

[Brief description of the drawings]

FIG. 1 is an enlarged view of a main part showing a state in which a cord yarn of the present invention is covered with a thermoplastic resin.

FIG. 2 is an enlarged view of a main part showing a state in which the resin film portion of the string thread of the present invention has been peeled off

FIG. 3 is an enlarged view of a main part showing a state in which a loop portion is formed at a terminal portion of the string thread of the present invention.

FIG. 4 is an enlarged view of a main part showing a state where a loop portion is formed by inserting two or more places into a terminal portion of the string thread of the present invention.

FIG. 5 is a perspective view showing a method for testing wear resistance.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coating layer of thermoplastic resin 2 String thread 3 Terminal part 4 Part where coating layer was peeled off 5 Loop part

Claims (1)

(57) [Claims] 1. A string made of a natural fiber, a synthetic fiber or a metal fiber, or a combination of the natural fiber, the synthetic fiber and the metal fiber alone or in an arbitrary number of composite yarns in an arbitrary ratio. The string is covered with a thermoplastic resin over the entire length in the length direction of the string, and at a portion separated by an arbitrary length from an end portion of the string, the thermoplastic resin is coated with the string. Peeling off the coating layer of the plastic resin,
The end portion of the string thread covered with the thermoplastic resin is bent and inserted into the hollow portion inside the portion where the coating layer has been peeled off, and a loop of an arbitrary size is formed at the end portion. A string thread, characterized in that: