JP6552246B2 - Rope strand and rope - Google Patents
Rope strand and rope Download PDFInfo
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- JP6552246B2 JP6552246B2 JP2015074796A JP2015074796A JP6552246B2 JP 6552246 B2 JP6552246 B2 JP 6552246B2 JP 2015074796 A JP2015074796 A JP 2015074796A JP 2015074796 A JP2015074796 A JP 2015074796A JP 6552246 B2 JP6552246 B2 JP 6552246B2
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- rope
- strand
- woven fabric
- warp
- tubular
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- 239000002759 woven fabric Substances 0.000 claims description 28
- 239000011162 core material Substances 0.000 claims description 22
- 239000000835 fiber Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000009941 weaving Methods 0.000 claims description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/1096—Rope or cable structures braided
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2083—Jackets or coverings
- D07B2201/20903—Jackets or coverings comprising woven structures
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2061—Ship moorings
Landscapes
- Ropes Or Cables (AREA)
- Woven Fabrics (AREA)
Description
本発明はロープ用ストランド及び当該ストランドを使用したロープに関するものであって、特に船舶を係留したり、海上構造物を海底から係留するための海洋リグ固定用のロープに関するものである。 The present invention relates to a rope strand and a rope using the strand, and more particularly to a marine rig fixing rope for mooring a ship or mooring a marine structure from the seabed.
一般にロープは、複数の原糸を撚り合わせてヤーンを形成し、当該ヤーンをさらに複数本撚り合わせてストランドとし、さらに当該ストランドをより合わせ又は組み合わせてロープとしている。 In general, a rope is formed by twisting a plurality of yarns to form a yarn, further twisting a plurality of the yarns into a strand, and further combining or combining the strands into a rope.
三本のストランドを撚り合わせたものを三つ撚りロープ又は三つ打ちロープと称し、八本のストランドを組み合わせたものをクロスロープ又は八つ打ちロープと称している。さらに四本のストランドを撚り合わせた四つ打ちロープや、十二本または十六本組み合わせたロープも使用されている。 A combination of three strands is referred to as a three-strand rope or a three-strike rope, and a combination of eight strands is referred to as a cross rope or a eight-strike rope. Furthermore, four-strand ropes in which four strands are twisted, and ropes in which twelve or sixteen are combined are also used.
而してこれらのロープにおけるストランドとして、特開２０１４−１１１８５１号公報に見られるように、たて糸とよこ糸とを筒状に織成した筒状織物内に、複数の繊維を引き揃えた芯材を挿通したものが知られている。 As shown in JP-A-2014-111851, a core material in which a plurality of fibers are aligned is inserted into a tubular woven fabric in which a warp and a weft are woven in a tubular shape as strands in these ropes. Is known.
しかしながら、前述の三つ撚りロープやクロスロープにおいては、ヤーンを形成するために原糸を二度・三度と繰り返して撚り合わせ、さらにそのヤーンを撚り合わせてストランドとし、さらに当該ストランドをより合わせ又は組み合わせることによりロープを形成している。 However, in the above-mentioned three-strand rope and cross rope, the yarn is twisted twice or three times to form a yarn, and the yarn is further twisted into a strand, and the strand is further combined. Or the rope is formed by combining.
そのため最終的なストランド又はロープにおいては、個々の原糸が繰り返して撚られることにより、ロープの長さに対して原糸の長さが長くなり、ロープにテンションがかかったときの伸び率が大きいものとなると共に、繊維が本来有する引っ張り強さを十分に活かすことができなかった。 Therefore, in the final strand or rope, the individual yarns are repeatedly twisted, so that the length of the yarn becomes longer than the length of the rope, and the elongation when the rope is tensioned is large. At the same time, the tensile strength inherent to the fiber could not be fully utilized.
またロープの太さが大きくなるにつれて、ストランドを構成するヤーンの本数が増加し、ストランドの中心部と周辺部とでヤーンの長さが異なり、複数のヤーンの張力を合わせることが困難であり、繊維の強度の利用率が低下していた。 Also, as the thickness of the rope increases, the number of yarns constituting the strand increases, the length of the yarn differs between the central portion and the peripheral portion of the strand, and it is difficult to match the tensions of a plurality of yarns, The utilization of fiber strength was reduced.
また前記公報に記載されたストランド又はロープにおいては、ストランドの芯材が略平行に延びているため、比較的強度の利用率が高いロープが得られているが、それでも十分とは言えなかった。特に破断時伸度が１０％未満であるような高機能繊維をストランドのたて糸として使用したような場合に問題がある。 Further, in the strand or rope described in the above publication, since the strand core material extends substantially in parallel, a rope having a relatively high strength utilization rate has been obtained, but it was still not sufficient. In particular, there is a problem when a high-performance fiber having an elongation at break of less than 10% is used as the warp of a strand.
本発明はかかる事情に鑑みなされたものであって、前記公報に記載された構造のストランド又はロープにおいて、強度の利用率がさらに高いロープを得ることを目的とするものである。 This invention is made | formed in view of this situation, Comprising: In the strand or rope of the structure described in the said gazette, it aims at obtaining a rope with still higher utilization factor of intensity | strength.
たて糸とよこ糸とを筒状に織成した筒状織物と、当該筒状織物内にその長さ方向に対して平行に集束された、前記筒状織物のたて糸と同種の素材よりなる芯材とよりなるロープ用ストランドにおいて、前記筒状織物の織り組織が綾織り組織であり、且つ前記筒状織物におけるたて糸と芯材との長さが、下記の式を満足することを特徴とする、ロープ用ストランド A tubular fabric in which a warp yarn and a weft yarn are woven into a tubular shape, and a core material made of the same kind of material as the warp yarn of the tubular fabric converged parallel to the length direction in the tubular fabric. In the rope strand, the woven fabric of the tubular woven fabric is a twill weave structure, and the lengths of the warp and the core in the tubular woven fabric satisfy the following equation. Strand
Ｌ１ ：ストランドの単位長さ当たりの筒状織物のたて糸の織り込み長さ
Ｌ２ ：ストランドの単位長さ当たりの芯材の長さ
本発明のロープ用ストランドにおいては、前記筒状織物のたて糸及び芯材が、高強度高弾性繊維よりなることが好ましい。また前記筒状織物の織り組織が３／１綾織り組織であることが好ましい。また前記筒状織物は、環状織機で織成されていることが好ましい。
In the rope strand of the present invention, it is preferable that the warp and the core material of the tubular woven fabric are made of high-strength and high-elasticity fibers. Moreover, it is preferable that the woven structure of the cylindrical fabric is a 3/1 twill structure. Moreover, it is preferable that the said cylindrical fabric is woven by a cyclic | annular loom.
また本発明のロープは、上記記載のロープ用ストランドを撚り合わせ、又は組み合わせてなることを特徴とするものである。 The rope of the present invention is characterized in that the rope strands described above are twisted or combined.
本発明によれば、筒状織物のたて糸と芯材とのストランドを同種の繊維とし、その長さ方向に対する長さをほゞ等しくすることにより、筒状織物のたて糸をも効率的に強度に寄与させることができ、高い強度利用率を有するストランドとすることができ、ひいては強度の大きいロープを得ることができるのである。 According to the present invention, the strands of the warp yarn and the core material of the tubular woven fabric are made of the same kind of fibers, and the lengths in the longitudinal direction are made almost equal to each other, so that the warp yarn of the tubular woven fabric can be efficiently strengthened. This can contribute to a strand having a high strength utilization rate, and thus a rope having a high strength can be obtained.
また前記筒状織物を綾織り組織とすることにより、たて糸とよこ糸との交点をが少なくなり、当該たて糸と芯材との長さを揃えることが可能となり、さらにストランドの強度利用率を高めることができる。 Further, by making the tubular woven fabric into a twill weave structure, the number of intersections between the warp and the weft decreases, and it becomes possible to make the lengths of the warp and the core uniform, and the strength utilization factor of the strand is further enhanced. Can do.
以下本発明を図面に基づいて説明する。図１は本発明のストランド１を示すものであって、たて糸２とよこ糸３とを筒状に織成した筒状織布４内に、その長さ方向に延びる芯材５が平行に挿通されており、前記筒状織布４の織り組織を３／１綾織り組織としたものである。そして筒状織布４のたて糸と、芯材とは同種の素材よりなっており、高強度高弾性繊維を使用するのが好ましい。 Hereinafter, the present invention will be described based on the drawings. FIG. 1 shows a strand 1 according to the present invention, in which a core material 5 extending in the length direction is inserted in parallel into a tubular woven fabric 4 in which warp yarns 2 and weft yarns 3 are woven into a tubular shape. The woven structure of the tubular woven fabric 4 is a 3/1 twill structure. The warp yarn of the tubular woven fabric 4 and the core material are made of the same kind of material, and it is preferable to use high-strength and high-elasticity fibers.
かかる高強度高弾性繊維としては、パラ型アラミド繊維、超高強力ポリエチレン繊維、ポリアリレート繊維、ポリベンズアゾール繊維、超高強力ポリビニルアルコール繊維などの繊維が適当である。 As such a high-strength and high-elasticity fiber, fibers such as para-aramid fiber, ultra-high strength polyethylene fiber, polyarylate fiber, polybenzazole fiber, and ultra-high strength polyvinyl alcohol fiber are suitable.
そして図２は本発明のロープ６を示すものであって、前記ストランド１を十二本組み合わせて、十二打ちのクロスロープとしたものである。なおこのロープ１は八つ打ちなどであっても良く、また三つ撚りなどのロープとすることも可能である。 FIG. 2 shows a rope 6 according to the present invention, in which twelve strands 1 are combined to form a twelve-strike cross rope. The rope 1 may be eight-strike or the like, or may be a three-strand rope.
次に、前記筒状織布４のたて糸２と芯材５とを同一の素材として、前記たて糸２の張力及び筒状織布４の組織を調整することにより、筒状織布４におけるたて糸２の織り込み長さを調節し、芯材５との長さのバランスを種々調整したストランド１を形成し、当該ストランド１及びそれを組み合わせたロープ６の強度を測定した。 Next, the warp yarn 2 in the tubular woven fabric 4 is adjusted by adjusting the tension of the warp yarn 2 and the structure of the tubular woven fabric 4 using the warp yarn 2 and the core material 5 of the tubular woven fabric 4 as the same material. The strand 1 in which the balance of the length with the core material 5 was variously adjusted was formed, and the strength of the strand 1 and the rope 6 combined with the strand 1 was measured.
而して前記たて糸２及び芯材５の素材として、高強度高弾性繊維として超高分子量ポリエチレン繊維を使用し、１７６０テックスの単糸を３本撚り合わせた糸条をヤーンとした。芯材５としては、当該ヤーンを１０３本使用した。 Thus, as the raw material of the warp yarn 2 and the core material 5, ultrahigh molecular weight polyethylene fiber was used as a high-strength high-elasticity fiber, and a yarn obtained by twisting three single yarns of 1760 tex was used as a yarn. As the core 5, 103 yarns were used.
また筒状織布４としては前記ヤーンを５０本使用してたて糸２とし、それと１６５０テックスのポリエステル繊維を２本撚り合わせた糸条をよこ糸３として、当該たて糸２とよこ糸３とを３／１綾織り組織により筒状織布４を織成した。 Further, as the tubular woven fabric 4, 50 yarns are used as the warp yarn 2, and a yarn obtained by twisting two polyester fibers of 1650 Tex together is used as the weft yarn 3 and the warp yarn 2 and the weft yarn 3 concerned 3/1 The tubular woven fabric 4 was woven by the twill weave structure.
而して前記芯材５としてのヤーンを引き込みながら、前記たて糸２とよこ糸３とを３／１綾織りにて筒状に織成して筒状織布４を形成し、筒状織布４内に芯材５を挿通した直径２０mmのストランド１を得た。また当該ストランド１を十二打ちのロープ６（ロープ径４８mm、ロープリード７倍）を作製した。 Thus, while drawing the yarn as the core material 5, the warp yarn 2 and the weft yarn 3 are woven into a cylindrical shape by 3/1 twill weave to form a cylindrical woven fabric 4. A strand 1 having a diameter of 20 mm through which the core material 5 was inserted was obtained. Further, a 12-strand rope 6 (rope diameter 48 mm, rope lead 7 times) was produced from the strand 1.
なお筒状織布４のよこ糸３の打ち込み密度を変えることにより、たて糸２の織り込み長さを調節したが、実施例２，３，４については、たて糸２のテンションウェイトを変更することによりたて糸２の張力を変え、たて糸２の織り込み長さを調節した。 Although the weaving length of the warp 2 was adjusted by changing the insertion density of the weft 3 of the tubular woven fabric 4, the warping yarn 2 of the second, third, and fourth embodiments was modified by changing the tension weight of the warp 2. The weaving length of the warp yarn 2 was adjusted.
試験のデータを表１に示す。ただし、「長さの差」は、ストランド１ｍ当たりの筒状織布４のたて糸２の平均長さと、芯材５のヤーンの平均長さとの差を測定した。またストランド及びロープの強度利用率は、超高分子量ポリエチレンの単糸の強度と使用単糸数との積に対する、ストランド及びロープの強度の割合を算出した。 The test data is shown in Table 1. However, for the “difference in length”, the difference between the average length of the warp yarn 2 of the tubular woven fabric 4 per 1 m of strand and the average length of the yarn of the core material 5 was measured. Moreover, the strength utilization factor of the strand and the rope was calculated by calculating the ratio of the strength of the strand and the rope to the product of the strength of the single yarn of the ultra high molecular weight polyethylene and the number of single yarns used.
１ ストランド
２ たて糸
３ よこ糸
４ 筒状織布
５ 芯材
６ ロープ
1 strand 2 warp 3 weft 4 tubular woven fabric 5 core 6 rope
Claims (5)
Ｌ１ ：ストランドの単位長さ当たりの筒状織物のたて糸の織り込み長さ
Ｌ２ ：ストランドの単位長さ当たりの芯材の長さ A tubular woven fabric (4) in which a warp (2) and a weft (3) are tubularly woven, and the tubular woven fabric converged in parallel with the length direction in the tubular woven fabric (4) (4) In the rope strand (1) comprising the core material (5) made of the same kind of material as the warp (2), the weave structure of the tubular woven fabric (4) is twill weave, and the cylinder The rope strand, wherein the lengths of the warp yarn (2) and the core material (5) in the woven fabric (4) satisfy the following formula:
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015074796A JP6552246B2 (en) | 2015-04-01 | 2015-04-01 | Rope strand and rope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015074796A JP6552246B2 (en) | 2015-04-01 | 2015-04-01 | Rope strand and rope |
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| Publication Number | Publication Date |
|---|---|
| JP2016194172A JP2016194172A (en) | 2016-11-17 |
| JP6552246B2 true JP6552246B2 (en) | 2019-07-31 |
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| JP7303520B2 (en) * | 2019-05-28 | 2023-07-05 | 西日本ニチモウ株式会社 | Synthetic fiber net manufacturing method |
| CN112009652A (en) * | 2020-07-30 | 2020-12-01 | 鲁普耐特集团有限公司 | Water surface rope rescue system in flood season |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5095552A (en) * | 1973-12-28 | 1975-07-30 | ||
| JPH038878A (en) * | 1989-06-01 | 1991-01-16 | Yoshidatsukasa Kk | Linear composite material |
| JP4097004B2 (en) * | 1998-12-11 | 2008-06-04 | 東京製綱繊維ロープ株式会社 | Fiber rope |
| JP6190647B2 (en) * | 2012-10-29 | 2017-08-30 | 株式会社オルセン | Synthetic fiber rope |
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