Rope fixing structure

Abstract

Depending on the intended use of the perforated rope, there was a demand to extend the overall rope length by attaching a regular rope to the perforated rope itself, or to use it as a sling rope. [Solution] A structure is formed by joining ropes made of a material that is both deformable and rigid at regular intervals, fixing the joints to create a perforated rope with multiple interconnected holes, and then passing a through rope through the holes in the perforated rope in a sewing-like manner, thereby fixing the through rope to the holes against the pulling force, where n is the number of holes through which the through rope passes in the perforated rope, and α is the angle between the holes and the through rope in a side view, 100

Description

Technical Field

[0001] The present invention relates to a rope fixing structure for securely fixing a rope to a perforated rope.

Background Art

[0002] The applicant has previously obtained Patent No. 5338018 for a perforated rope, and in Example 1 described in FIGS. 2 to 4 of the patent, a fixing method using a perforated rope made by welding from two nylon zyles is disclosed. In such a perforated rope, depending on the purpose of use, the rope end was firmly fixed by passing the rope end through a plurality of hole portions.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventional fixing of a perforated rope has fixed the rope end by passing the rope end through a plurality of hole portions of the perforated rope as described above. However, depending on the purpose of use, there has been a desire to fix a normal rope to the perforated rope itself to extend the overall rope length or to use it as a sling rope. At this time, it is necessary to fix the rope to the hole portion of the perforated rope more firmly and surely, and if the fixing is insufficient, there is a risk that it will not fulfill its role.

Means for Solving the Problems

[0005] In order to meet the above requirements, the rope fixing structure of the present invention joins ropes made of a material having deformability and rigidity at regular intervals, fixes the joint portions thereof, and passes a through-rope through the hole portions of a perforated rope formed by connecting a plurality of hole portions in series, thereby fixing the through-rope to the hole portions against the pulling force of the through-rope. When the number of hole portions through which the through-rope passes through the hole portions of the perforated rope is n and the angle formed by the hole portions and the through-rope in a side view is α, 100 < nα < 140.

[0006] It is characterized in that it is optimal that nα ≒ 120.

[0007] Further, the rope fixing structure of the present invention joins ropes made of a material having deformability and rigidity at regular intervals, fixes the joint portions thereof, and passes a through-rope through the hole portions of a perforated rope formed by connecting a plurality of hole portions in series, thereby fixing the through-rope to the hole portions against the pulling force of the through-rope. It is characterized in that a rod-shaped member is inserted between the joint portion of the perforated rope and the through-rope.

Effect of the Invention

[0008] According to the rope fixing structure of the present invention, if the value of nα is optimally set, when a pulling force is applied to the through-rope, the through-rope can be firmly and reliably fixed to the rope hole portion by the frictional force at the time of contact between the rope hole portion and the through-rope passed through the rope hole portion. Further, by inserting a rod-shaped member between the joint portion of the perforated rope and the through-rope, the through-rope can be more reliably and firmly fixed to the rope hole portion.

Brief Description of the Drawings

[0009] [Figure 1] It is a diagram for explaining the basic concept of the rope fixing structure of the present invention, where (a) is a plan view thereof and (b) is a side view thereof. [Figure 2] It is an external view showing a part of a prototype of the first embodiment of the rope fixing structure of the present invention. [Figure 3]This is an external view showing a part of a prototype of a second embodiment of the rope fixing structure of the present invention. [Figure 4] This is an external view showing a part of a prototype of the third embodiment of the rope fixing structure of the present invention. [Figure 5] This is an external view showing a part of a prototype of the fourth embodiment of the rope fixing structure of the present invention. [Figure 6] This is an external view showing a part of a prototype of the fifth embodiment of the rope fixing structure of the present invention. [Figure 7] This is an external view showing a part of a prototype of the sixth embodiment of the rope fixing structure of the present invention. [Figure 8] This is an external view showing a part of a prototype of the seventh embodiment of the rope fixing structure of the present invention. [Figure 9] This figure shows a first usage configuration of a rope having the rope fixing structure of the present invention. [Figure 10] This figure shows a second use case of a rope having the rope fixing structure of the present invention. [Figure 11] This figure shows a third use of a rope having the rope fixing structure of the present invention. [Figure 12] This figure shows a fourth form of use for a rope having the rope fixing structure of the present invention. [Figure 13] This figure shows a fifth usage configuration of a rope having the rope fixing structure of the present invention. [Figure 14] This figure shows the first usage state of a rope having the rope fixing structure of the present invention. [Figure 15] This figure shows a second state of use for a rope having the rope fixing structure of the present invention. [Figure 16] This figure shows a third state of use for a rope having the rope fixing structure of the present invention. [Figure 17] This figure shows a fourth state of use for a rope having the rope fixing structure of the present invention. [Figure 18] This figure shows the fifth usage state of a rope having the rope fixing structure of the present invention. [Figure 19] This figure shows the sixth usage state of a rope having the rope fixing structure of the present invention. [Figure 20] This is a diagram showing the seventh usage state of the rope having the rope fixing structure of the present invention. [Figure 21] This is a diagram showing the eighth usage state of the rope having the rope fixing structure of the present invention. [Figure 22] This is a diagram showing the ninth usage state of the rope having the rope fixing structure of the present invention. [Figure 23] This is a diagram showing the tenth usage state of the rope having the rope fixing structure of the present invention. [Figure 24] This is a diagram showing the eleventh usage state of the rope having the rope fixing structure of the present invention. [Figure 25] This is a plan view for explaining other basic concepts of the rope fixing structure of the present invention.

[0010] Figure 1 illustrates the basic concept of the rope fixing structure of the present invention, with (a) being a plan view and (b) being a side view. In Figure 1, 1 is a perforated rope, and its material is a rope with deformability and rigidity. The perforated rope 1 is a rope formed by joining two ropes at a regular interval, fixing the joint 1a, and connecting multiple holes 3. 2 is a through rope, which is a single rope made of the same material as the perforated rope 1. As shown in Figure 1, the through rope 2 is fixed to the perforated rope 1 by passing it through the holes 3 of the perforated rope 1 as if sewing. At this time, the through rope 2 comes into contact with the holes 3 and frictional force is generated. This frictional force changes depending on the contact state between the through rope 2 and the holes 3, that is, the size of the gap between the inner diameter of the holes 3 and the through rope 2. Since both the perforated rope 1 and the through rope 2 are deformable, and each rope has a different outer diameter, the size of the gap is not always constant and cannot be measured quantitatively. Therefore, as a substitute for the size of this gap, the angle α between the perforated rope 1 and the through rope 2 is defined as shown in Figure 1(b). In addition, when joining two ropes at a certain interval in the perforated rope 1, they may be joined in a crossed state. Furthermore, the rope fixing structure of the present invention is released by holding down the through rope 2 and sliding one end of the perforated rope 1 against the other end.

[0011] Table 1 shows measurement data illustrating the relationship between the angle α between the perforated rope 1 and the through rope 2 in the rope fixing structure of the present invention and the number of holes n in the perforated rope 1. When the number of holes n when the through rope 2 is fixed to the perforated rope 1 was measured while varying the angle α in Figure 1(b), the results were obtained as follows: when α≈60° (measured value 50°<α<70°), n=2; when α≈40° (measured value 35°<α<45°), n=3; when α≈30° (measured value 25°<α<35°), n=4; when α≈25° (measured value 20°<α<28°), n=5; and when α≈20° (measured value 17°<α<23°), n=6. From this measurement data, it was found that nα ≈ 120 (measured value 100° < α < 140°). [Table 1]

[0012] Figures 2 to 8 are external views showing some prototypes of the first to seventh embodiments of the rope fixing structure of the present invention. Since all prototypes shown in each figure are made to satisfy the basic requirements described in Figure 1, detailed explanations with reference numerals are omitted. The first embodiment in Figure 2 is the basic structure of the present invention, in which one rope is sewn through the continuous holes of a perforated rope. The second embodiment in Figure 3 uses two perforated ropes, and one rope is sewn through each hole in the same way as in Figure 2. The third embodiment in Figure 4 replaces the perforated rope in Figure 2 with a flat belt-shaped rope. The fourth embodiment in Figure 5 has two ropes passed in parallel through the holes of the belt-shaped perforated rope in Figure 4. The fifth embodiment in Figure 6 has two ropes passed in parallel through the holes of a perforated rope and is fitted with a stopper. The sixth embodiment in Figure 7 has the intersection of the perforated rope fixed with a separate member. The seventh embodiment in Figure 8 has both the perforated rope and the ropes passed through each hole being flat belt-shaped.

[0013] Figures 9 to 13 show the first to fifth uses of the rope having the rope fixing structure of the present invention. Furthermore, Figures 14 to 23 show the first to tenth uses of the rope having the rope fixing structure of the present invention. The first use in Figure 9 is a rope with a snap hook attached to the end, allowing the rope to be fixed by hooking the snap hook onto an object. The second use in Figure 10 is a rope with a larger hole at the end to serve as a handle. The third use in Figure 11 is a rope with a single rope extended from the holes at both ends, allowing it to be used as a lead for two dogs. The fourth use in Figure 12 is a rope with a handle grip attached to one end. The fifth use in Figure 13 is a form that can be used as a dog choke collar. The first use in Figure 14 can be used as a lockable climbing sling rope. The second use in Figure 15 is a state where it is used as a shoelace. The third usage state in Figure 16 shows a sheet fixed to a steel pipe using the holes in the sheet. The fourth usage state in Figure 17 shows two orthogonal steel pipes fixed together. The fifth usage state in Figure 18 shows the fixing structure of the present invention being used as a hook for the object to be fixed. The sixth usage state in Figure 19 shows it being used to move a heavy object attached via a shackle. The seventh usage state in Figure 20 is another example of using the fixing structure of the present invention as a hook for the object to be fixed, as in Figure 18. The eighth usage state in Figure 21 shows the rope fixed to the object. The ninth usage state in Figure 22 shows the rope fixed to the object where each rope in Figure 20 is belt-shaped. The tenth usage state in Figure 23 shows it fixed to a vehicle-mounted winch. The eleventh usage state in Figure 24 shows a vehicle being lifted using the rope fixing structure of the present invention.

[0014] Furthermore, Figure 25 is a plan view illustrating another basic concept of the rope fixing structure of the present invention. In Figure 25, two rod-shaped members 4 made of ramin material are inserted between the joint 1a of the perforated rope 1 and the through rope 2. By inserting these rod-shaped members 4, the movement of the through rope 2 can be suppressed. These rod-shaped members 4 can be made of any material, regardless of hardness, and can even be made of rope. The number of rod-shaped members 4 can be one or more, but the more rod-shaped members 4 there are, the greater the effect of suppressing the movement of the through rope 2. [Industrial applicability]

[0015] As described above in terms of usage forms and conditions, the present invention can be used in a wide variety of situations, such as dog collars and leashes, medical restraint devices and rehabilitation aids, vehicle towing devices, and luggage lifting devices. [Explanation of symbols]

[0016] 1...Perforated rope, 1a...Joint, 2...Through rope, 3...Hole, 4...Rod-shaped member

Claims

1. A rope fixing structure is formed by joining ropes made of a material that is both deformable and rigid at regular intervals, fixing the joints to create a perforated rope in which a plurality of holes are connected, and then passing a through rope through the holes in the perforated rope in a sewing-like manner, thereby fixing the through rope to the holes against a pulling force, characterized in that when the number of holes through which the through rope passes in the perforated rope is n and the angle between the holes and the through rope in a side view is α, 100 < nα < 140.

2. A rope fixing structure comprising joining ropes made of a material having deformability and rigidity at regular intervals, fixing the joints to form a perforated rope in which a plurality of holes are connected, and passing a through rope through the holes in a sewing manner, thereby fixing the through rope to the holes against a pulling force, characterized in that a rod-shaped member is inserted between the joints of the perforated rope and the through rope.

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