Single twisted rope

Japanese: 片撚りロープ - かたよりろーぷ
Single twisted rope

...The core rope is made of another strand (Figure 2-a), or synthetic or natural fibers that have been thoroughly soaked in oil (Figure 2-b). In contrast, the spiral rope (also called a single-twist rope) shown in Figure 2-c is made by bundling strands made of several layers of twisted wire in parallel to achieve the required cross-sectional area, allowing the use of relatively thick wire and a long twist pitch (twist length). Another type of spiral rope is the locked coil rope shown in Figure 2-d, which has a trapezoidal or Z-shaped irregular cross-section wire in the outer layer to reduce the gap.

*Some of the terminology that refers to "single twisted rope" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…心綱には別のストランド(図2-a),または油を十分にしみ込ませた,合成繊維,あるいは天然繊維(図2-b)を用いる。これに対し図2-cのスパイラルロープ(片撚りロープとも呼ばれる)は,ワイヤを何層かに撚ってつくったストランドを所要の断面積になるよう平行に束ねたもので,比較的太径のワイヤが使え,撚りのピッチ(撚り長)も長い。またスパイラルロープの一種に,図2-dのように外層に台形やZ形の異形断面ワイヤを配して空隙を小さくしたロックドコイルロープがある。…

※「片撚りロープ」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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