JPS6010157B2 - Method for forming loops in rope making - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of forming loops in a thin rope that can be used for rope products having a loop at one or both ends, such as a sling or a dog leash.

As is well known, as a method for forming loops in lobes from subordinate ends, there is a so-called ice splice method in which the ends of the rope are untied, and the ropes are inserted one by one into the desired splicing location and spliced.

However, with this method, it is necessary for skilled craftsmen to spend time and effort to process the spliced parts so that they do not fall out, which is time-consuming and difficult to mass-produce, resulting in problems in terms of economy. It had In particular, eye splicing of thin lobes used for mooring ships is extremely difficult and could only be accomplished by specialized craftsmen, so there was a desire for a method for forming loops that could be formed more easily. be. Therefore, the purpose of this invention is to
To provide a method for forming loops that does not require the time and effort of ice milling, is extremely easy to form loops regardless of fiber or steel wire, allows changing the joint location as necessary, and does not easily come off. It's there.

The characteristics of this rope are that the end of the rope is tied to prevent it from unraveling, and the end is treated by fusion, etc., and a desired loop circle is formed near one end of the rope and from the vicinity. At the separating point corresponding to the circumference length, each strand or wire constituting the rope is expanded to form an insertion hole, and the one end of the rope is separated from the rope corresponding to the loop circumference length. It is inserted into a camellia through hole formed at a certain point, and the other end is inserted into an insertion hole formed near one end and tightened.

Below, specific embodiments will be explained according to the drawings.
Reference numeral 1 denotes a thin rope made of eight strands 2 each made of five single yarns of synthetic fibers, and made by a normal stringing machine.

Reference numeral 3 denotes one end of this thin rope 1. The thin rope 1 made by a string making machine is cut to a desired length, and at the same time as the dimensions are adjusted, the ends are fused to prevent it from coming apart. It has undergone terminal processing.

Note that this terminal treatment is not limited to simultaneous fusing by fusing or fusing after cutting, but the cut portion may be simply wrapped and bound using a thin wire such as a wire. Note that the material for the thin rope is not limited to synthetic fiber materials, but can be applied to thin ropes made of various materials such as steel wire. By the way, as a method of forming a loop using such a rope, as shown in FIG. Further, at a location separated by a desired circumferential length L from this insertion hole 4, the space between each strand 2 is expanded again to form a separate insertion hole 5. Next, as shown in FIG. 2, the one end 3 and the wire through hole 4 formed near the one end are inserted into the insertion hole 5 to form the loop part A [A→mouth], and then the loop part of the rope is inserted into the insertion hole 5. 6 into the insertion hole 4 [c].

Thereafter, by tightening the other end 6 and the one end 3 of the loop portion A in opposite directions as shown by the arrows [2], a loop corresponding to the desired loop circumference is formed [2].
Not]. By the way, as a loop forming method other than the method described above, there is a method as shown in FIG.

That is, the loop portion A is formed by inserting the one end portion 3 and the insertion hole 4 formed near the one end portion into the insertion hole 5 [A→mouth].
Up to this stage, the process is similar to the previously described method shown in FIG. Next, insert the loop part A into the insertion hole 4, and tighten the one end side of the inserted loop part A in the direction of the arrow.
C → 2], a loop is formed in the same way [E]. Another method for forming a loop is to form a loop part A by inserting the other end part 6 into the insertion hole 4 on the side of one end, as shown in FIG. If you insert A through it and pull it in the direction of the arrow, then tighten it further [C→2], a similar loop will be formed [tree].

In the above-mentioned deviation procedure, as is clear from the [tree] in each figure showing the final procedure, one end 3 is inserted into the insertion hole 5, and the other end 6 is inserted into the insertion hole 4. A loop is formed by tightening.

When the loop portion A formed in this way is used, the insertion hole 4 on one end side is pulled in that direction by a tensile force applied in the loop direction in the neck portion B, and the insertion hole 5 on the other end side is pulled in that direction by a tensile force applied in the loop direction. Since it is pulled in that direction by the tensile force applied toward the other end, it is extremely firmly fastened by the tensions from these opposite directions, and there is no risk of it coming off in exchange for terminal treatment. Also, unlike the ice splice, where one end is simply inserted between the strands, the loop part A and the loaf. The entire structure is almost integrated, which makes it a strong and reliable loop formation method. By the way, when a loop is formed as described above, one end 3 protrudes sideways at the neck B as shown in Figs. 1 to 4, resulting in an unsightly appearance. If there is, it is a hollow coarse weave, so if one end 3 with this terminal treatment is placed in the hollow part inside the robe that appears when the rope is shortened in the longitudinal direction, one end of the rope will be hidden. , it is possible to form a loop with high commercial value that is integrated with the whole in terms of appearance.

In addition, when forming an insertion hole in a lobe, if the component of the rope is not a strand but simply a hollyhock wire, it is of course possible to form the insertion hole by widening between each strand. Even if the constituent single yarns or strands are expanded at the same time as other strands and the insertion hole itself is formed by both the expansion of the strands and the opening of the single yarns or strands, There is no problem in forming the loop.However, from the viewpoint of durability, it is preferable that the strands widen.As described above, the method for forming the loop in the thin rope according to the present invention is simply by melting, fusing, etc. Two insertion holes are formed by expanding the length between each strand or between each wire of the thin rope, which has been subjected to terminal treatment, and one end of each lobe and the pond end are inserted into these insertion holes and tightened. Since it is possible to form a loop, it is extremely simple and can be formed in a short time compared to the conventional so-called ice splicing method, and anyone can form it without requiring a particularly skilled craftsman. It is possible to mechanize the entire process.

Therefore, mass production is possible, and a loop forming method can be achieved that can significantly reduce costs. In addition, since it can be used regardless of the material, the rope can be used in a very wide range of applications, including slings, dog leashes, and ship mooring ropes, as well as in any field that requires loop formation.

In addition, by reversing the procedure, it is possible to return to a normal rope again, so if you re-form the insertion hole in another location and pull it through in the same way, you can use ropes with different circumferences. The loop can be easily obtained with the same product, and the loop circumference can be easily adjusted, and when used as a sling, the total length (the diameter of the loop part and the length of the main body part) can be changed. , the damage position of the sling can be shifted,
It also has the advantage that the overall durability can be improved accordingly.

[Brief explanation of the drawing]

FIG. 1 is a front view of essential parts showing an embodiment of the method for forming a loop in a thin rope according to the present invention, and A to H in FIG. A to H in Figure 3, a schematic explanatory diagram showing the
A to T in Fig. 4, a schematic explanatory diagram showing another example of the procedure, are as follows:
It is a schematic explanatory diagram showing still another example of a procedure. DESCRIPTION OF SYMBOLS 1... Thin rope, 2... Strand, 3... One end part, 4, 5... Insertion hole, 6... Other end part. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. Apply terminal treatment such as binding or fusing to the rope, and tie between each strand or each element constituting the rope near one end of the core rope and at a separation point corresponding to the desired loop circumference from the vicinity. Each wire is expanded to form an insertion hole, and the one end of the rope is inserted into the insertion hole formed at a separated location corresponding to the circumference of the loop, and the other end is inserted near the one end. A method for forming a loop in a rope made by inserting it into a formed insertion hole and tightening it.