JPH07216769A - Rope-suspension tool made of plastic - Google Patents

Abstract

PURPOSE:To obtain a rope-suspension tool made of a plastic material and having high tensile strength, light weight, easy handleability and high durability. CONSTITUTION:This rope-suspension tool is produced by braiding a rope with a twist yarn of a high-tenacity fiber made of a polymer resin, forming loops 2 at both ends of the rope by folding the end parts and braiding into the rope to form braided parts 6 and slidably covering the loops 2 at both sides and the middle part of the rope with tubular protection materials 4 made of a soft resin. The braided part 6 is pressed with a thermoplastic resin tube 7 coated its inner surface with a soft adhesive. Each of plural ropes produced by using a high-tenacity fiber made of a polymer as a twist yarn is inserted into each of plural insertion holes 13 formed in a row on a positioning member 12 made of a flexible material and both ends of the ropes are connected to form loops.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin rope suspender capable of suspending a heavy object using high strength fibers made of a polymer resin.

[0002]

2. Description of the Related Art Conventional suspending equipment includes metal materials such as wire ropes and chains, mountain ropes such as nylon ropes, and sling belts made of synthetic resin fibers. Some are mainly composed of chemical fibers.

A wire rope does not stretch or break,
Since it has useful properties such as wear resistance,
It has been used most often for many years as a lifting device for heavy objects. Then, the wire is a ball-shaped wire or a loop-shaped wire provided with a loop at its end so that it can be easily used as a hanging tool. Also, chains are often used as suspenders for heavy objects because they have useful properties almost similar to those of wire ropes. The usage of this chain is mainly used as a suspension tool for suspension scaffolds installed on bridges and construction sites. The reason is that it is possible to form a ring at the end by hooking the hook provided at the end in the middle of the chain and at the same time change the hooking position to make the length adjustment simple. Is.

[0004] For mountaineering zile, elongation for softening the impact at the time of falling and abrasion resistance with a sharp rock surface are required together with strength, and nylon is a material satisfying these requirements. Nylon rope is used. In addition, the sling belt is composed of a high strength fiber as the warp yarn, a fiber having excellent wear resistance and weather resistance as the weft yarn, and a bundle of high strength fibers is enclosed in a nylon bag to form a belt shape. We use as hanging equipment.

[0005]

On the other hand, the above-mentioned wire rope is heavy, hard, rusts, is difficult to be deformed and restored, is easy to rotate when a heavy object is hung, is electrified, and has poor operability. It has drawbacks such as being easily injured. Therefore, there is a problem that it cannot be used depending on the purpose of use. Also in chains, heavy, hard,
It has the drawbacks of rusting, easy rotation when hanging a heavy object, and energization, and likewise it cannot be used depending on the intended purpose.

Further, although nylon ropes used for sile and the like are excellent in tensile strength to some extent, the weight of the suspended object is at most about 100 kg because of its elasticity and elongation, and slipperiness and gripping. However, there is a problem that it is not suitable as a hanging tool for heavy objects. Furthermore, in the case of a sling belt,
Since it is not a rope but a belt, it has the problem of being much inferior to the rope in terms of operability and storability, and since it is contained in a nylon bag, the bundle of high-strength fibers inside is cut. If you do, there is a problem that it is difficult to find out from the outside. In addition, the ropes may overlap with each other, and if the ropes are continuously used in this state, they may be easily cut.

[0007]

[Means for Solving the Problems] According to the means for solving the above problems, a rope made of high-strength polymer resin is used as a braided rope, and loops are formed at both ends thereof. In the above-mentioned resin rope hanger, loops are formed by folding back both ends of the rope to form a loop, and the two loops at both ends and the intermediate portion of the rope are made of flexible resin. It is covered with the protective material of slidably.

According to a second aspect of the present invention, the braided portion is clamped and crimped with a tubular thermoplastic resin having a soft adhesive applied to its inner surface.

According to a third aspect of the present invention, the rope is impregnated or coated with a resin containing ceramic.

According to a fourth aspect of the present invention, a plurality of ropes formed by twisting high-strength fibers made of polymer resin are inserted into a plurality of through holes formed in a positioning member made of a flexible material and arranged in a line. Then, the both ends are connected to form a loop.

[0011]

The resin rope suspending device according to the means of claim 1 is
Since a rope made of high-strength fiber made of high-polymer resin is used as a braided rope, its tensile strength is great, and both ends are folded back to form a braided part to form a loop. When hanging an object, it can be used as a hanging tool by hooking it on one wheel and hooking it on the hook of a lifting machine or the like on the other wheel. Also, since the two wheels and the intermediate part of the rope are slidably covered with a tubular protective material made of flexible resin, hooks and the like do not come into direct contact with the rope, and wear is correspondingly increased. It is possible to prevent damage due to the like, improve weather resistance, and improve durability of the rope.

According to the second aspect of the present invention, since the braided portion is clamped and crimped by the cylindrical thermoplastic resin having the inner surface coated with the soft adhesive, the braided portion is firmly bonded and the durability is improved.

According to the third aspect of the present invention, since the rope is impregnated or coated with the ceramic compound resin, wear resistance,
It has excellent weather resistance, and as a result, the durability of the rope is dramatically improved.

According to a fourth aspect of the present invention, a plurality of ropes formed by twisting high-strength fiber made of polymer resin into a loop shape are inserted into the insertion hole of the positioning member made of a flexible material so as to form a line. Therefore, it can be used as a belt-shaped hanging tool. The positioning member allows the ropes to be entangled and thus can be used as a belt in a lateral alignment. Further, by forming the insertion hole of the positioning member to be slightly larger than the thickness of the rope, the positioning member can be slid freely, and it is possible to prevent the rope from being worn or damaged by moving to the contact position of the load to be lifted. Also, since each rope is well visible from the outside, it is immediately visible when a defect occurs.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of claim 1 of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a resin rope suspending tool 1 of this embodiment slides a ring 2 formed by folding back both ends of a resin rope and the two rings 2 and an intermediate portion 3 of the rope. Protective material 4 covered freely
And 5. As shown in FIG. 2, a resin rope is made of a polymer resin such as polyester resin fiber and polyarylate resin fiber, and a fiber made of high-strength resin, which is made into a twisted yarn, and then, as shown in FIG. It is woven into a rope. Then, the loop 2 is formed by folding back both ends of the resin rope formed in this way,
The size of the ring 2 is appropriately set according to the purpose of use. As shown in FIG. 4, the folded back tip portion is woven into a resin rope to form a woven portion 6, which is firmly connected. The braid 6 is formed by weaving and inserting fibers in a twisted state between resin ropes braided into a braid, and fixing the ends with an adhesive or the like so as not to pull out the ends.

In the resin rope hanger 1 of this embodiment, the strength of the rope is increased by increasing the strength of the fiber as the raw material of the resin rope hanger 1 and by increasing the diameter of the rope. Can be larger.
The specific gravity of resin rope is about 1 / compared to wire rope
Therefore, even if the diameter is doubled, the total weight is still 1/3 of that of the wire rope. Therefore, even if the diameter of the rope is increased, the usability may decrease. Absent. As a concrete example, a wire rope made of stainless steel and having a diameter of 9 mm has a cutting weight of 4.29 t and a weight of 0.3 kg / m.
If t (about twice the wire rope) is set, the required diameter of the rope is 14 mm and its weight is 0.737 (1 m load of 14 mm wire rope) x 1/6 = 0.123 kg. This is tabulated and compared as follows.

[0017]

[Table 1]

The material of the protective members 4 and 5 slidably covering the two wheels 2 and the intermediate portion 3 of the rope is a fibrous braid if it is a tubular member made of a flexible resin. Alternatively, the resin itself formed into a tubular shape may be used. Such protective materials 4 and 5 are provided when the rope comes into contact with other members such as a hook of a lifting machine or a hanging rope.
It is used to prevent the abrasion and improve the weather resistance.

In the second embodiment of the present invention, as shown in FIGS. 5 and 6, in order to reinforce the braided portion 6, a tubular thermoplastic resin 7 is tightened and crimped. . In this case, by applying a soft adhesive to the inner surface of the thermoplastic resin 7, the thermoplastic resin 7 is firmly fixed to the woven portion 6 without peeling off after tightening and pressure bonding.

Further, in the third embodiment of the present invention, by applying or impregnating all or part of the outer circumference of the resin rope with a ceramic compound resin in which fine ceramic particles are compounded. , The strength of the rope itself can be improved. In this case, the resin preferably has an adhesive force to the resin itself, and when the resin does not have an adhesive force, a material having an adhesive force is separately mixed.

An example of using the resin rope hanger 1 of this embodiment as described above will be described with reference to FIG. This illustrated example is for use as a suspension scaffold, and its ends have been fixed to a building in advance.
In the fixed rope 8 of the book, one ring 2 of the resin rope suspending device 1 of a required number is previously inserted, and
A scaffolding rope 10 on which a scaffolding board 9 is placed is inserted in the other wheel 2. After making such preparations, the scaffolding board 9 is placed on the two scaffolding ropes 10 in order from one end.
In this case, the scaffolding plate 9 is provided with hooks for the scaffolding rope 10 at both ends of the back surface thereof, for example. By constructing in this way, it can be applied to suspension scaffolding such as bridges and construction sites.

A resin rope hanger 1 according to a fourth embodiment of the present invention, as shown in FIGS.
A plurality of ropes 11 in which a twisted yarn made of the same material as in the above example is knitted are formed in a positioning member 12 made of a flexible material such as synthetic resin or rubber.
It is inserted through and both ends are connected. The positioning member 12 is formed in a thin plate shape in the illustrated example, and the insertion holes 13 corresponding to the number of the ropes 11 are formed inside the positioning members 12 in a row in a row slightly larger than the diameter of the ropes 11. 11 is slidably inserted.
By inserting the ropes 11 in this way, the ropes 11 are in a state of being arranged in a line in a row with a little space left between them. Furthermore, by connecting both ends of each rope 11,
It is formed in a loop shape and becomes a belt shape as a whole. The number of positioning members 12 through which the rope 11 is inserted is not limited and may be any number. To connect both ends of each rope 11, as shown in FIG. 11, after unbraiding both ends to form a twisted yarn state, this is re-knitted to be an integrated body. It is fixed by a means such as crimping and fixing with a tightening member 14 having an adhesive applied inside. However, the connection may be made by other means, and is not limited to this.

An example in which a load is hoisted by the belt-shaped resin rope hoisting tool 1 will be described with reference to FIGS. 12 and 13. First, the luggage 15 is put into the two resin rope suspenders 1. At this time, the positioning member 12 is placed on the rope 11 so that the positioning member 12 contacts the corner portion where the load of the luggage 15 is most applied. Move by sliding. And this
The durability of the rope 11 can be improved. Then, the upper part of the two resin rope suspenders 1 is hooked and lifted by a hook 16 fixed to a rope such as a lifting machine.
At this time, the load is distributed to each rope 11, so that it is possible to lift the maximum load of the rope 11 × the number of loads 15 of the rope 11. Should one of the ropes 11 be missing, cut the rope 11 and
It can be used as a belt-shaped suspender formed by the remaining rope 11.

[0024]

As is apparent from the above description, since the resin rope suspending device according to claim 1 of the present invention is a braided rope in which high-strength fiber made of polymer resin is used as a twisted yarn. Its tensile strength is large, it is equivalent to a wire rope, and its weight is light and easy to use. Further, since the rings are formed in advance on both ends of the ring, it is easy to suspend. Since the intermediate portion and the loop of the rope are slidably covered with a tubular protective material made of a flexible resin, the rope is excellent in wear resistance and weather resistance, and durability is improved.

Furthermore, in the resin rope hanger according to claim 2 of the present invention, the braided portions at both ends are clamped and crimped with the tubular thermoplastic resin having the soft adhesive applied to the inner surface thereof. It is possible to prevent the deformation of the yarn and the twisted yarn that is woven into it, and improve the durability.

Further, in the resin rope suspending device according to the third aspect of the present invention, when the resin rope is impregnated with or coated with the ceramic compounding resin, the heat resistance and the resistance which are the greatest defects of the resin rope are Abrasion resistance and weather resistance can be improved.

Further, unlike the conventional sling belt, the resin rope hanger according to claim 4 of the present invention is not contained in the bag, so that the defect of the rope can be easily found from the outside. In addition, since the ropes do not overlap with each other by the positioning member, the load-bearing portion of the luggage is always uniform over the plurality of ropes, and an unbalanced load is not applied to a specific rope, resulting in improved durability. Furthermore, since the positioning member can be moved with respect to the rope and is made of a flexible material, the durability of the rope can be improved also by applying the positioning member to the most loaded portion. Furthermore, even if one of the ropes is broken, the broken rope can be cut off and removed, and the remaining rope can be used as a belt-shaped hanging tool. Has the advantage of improving.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an embodiment of the present invention with some parts omitted.

FIG. 2 is an explanatory view of a twisted yarn.

FIG. 3 is an explanatory view of a braid.

FIG. 4 is an enlarged explanatory view of a braided portion.

FIG. 5 is an explanatory view in which a woven portion is covered with a thermoplastic resin.

6 is a cross-sectional view taken along the line AA of FIG.

FIG. 7 is a diagram showing an example of use of a resin rope hanger.

FIG. 8 is an overall perspective view of another embodiment of the present invention.

FIG. 9 is a partially enlarged explanatory view of FIG.

10 is a cross-sectional explanatory view of FIG.

FIG. 11 is an enlarged explanatory view of a connecting portion of a rope.

FIG. 12 is an explanatory diagram of a state in which the luggage is lifted.

FIG. 13 is a side view of FIG.

[Explanation of symbols]

 1 Resin rope suspending device 2 Wheel 3 Intermediate part of rope 4 Protective material (wheel) 5 Protective material (intermediate part) 6 Braided part 7 Thermoplastic resin 12 Positioning member 13 Insertion hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshimin Muraki 1-7-1-5111 Tomobuchi-cho, Miyakojima-ku, Osaka-shi, Osaka

Claims (4)

[Claims] 1. A braided rope made of high-strength fiber made of a polymer resin, which is a braided rope, and loops are formed at both ends of the rope. A rope made of resin, characterized in that a loop is formed by forming a portion, and two loops at both ends of the rope and an intermediate portion of the rope are slidably covered with a tubular protective material made of a flexible resin. Hanging equipment. 2. The resin rope hanger according to claim 1, wherein the braided portion is clamped and crimped with a tubular thermoplastic resin having a soft adhesive applied to the inner surface thereof. 3. The resin rope hanger according to claim 1 or 2, wherein the rope is impregnated with or coated with a ceramic compounding resin. 4. A plurality of ropes in which high-strength fibers made of a polymer resin are twisted, are inserted into a plurality of through holes formed in a positioning member made of a flexible material and arranged in a line, and both ends thereof are inserted. A rope suspender made of resin, characterized in that it is connected to form a loop.