Generally, it means a rope, but it is especially used in mountaineering to tie one's body together for safety when climbing rock or ice walls, and to assist in climbing by securing and hanging. Manila hemp and hemp were used as materials in the past, but nylon and vinylon became more common around 1950, but overconfidence in the strength of these synthetic fibers led to a series of accidents, which temporarily became a social problem. Structurally, it has also changed from "twisted ropes" to "braided ropes." Diameters are 8 to 11 millimeters, and ropes smaller than this are for assistance. Most are 30 to 40 meters long, and two or three people form a party by tying them together. Ropes can break when rubbed against rock corners, so it is dangerous to use them unless you are fully proficient in the various knots, techniques, and usage. [Tokuhisa Kyuuou] [References] |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
一般に綱を意味し、英語のロープにあたるが、とくに登山で岩壁や氷壁を登攀(とうはん)するときに安全のために体を結び合い、確保や懸垂など登攀の補助のために用いる綱をいう。材料には以前はマニラ麻や大麻が用いられ、1950年ころからナイロン、ビニロンのものが多くなったが、これらの合成繊維の強度への過信から事故が続き一時社会問題にまでなった。構造的にも「撚(よ)りザイル」から「編みザイル」に変遷してきた。直径は8~11ミリメートルで、これ以下は補助用である。長さは30~40メートルのものが多く、これを結び合って2~3人がパーティーを組んで行動する。ザイルは岩角などで摩擦すると切断したりするから、ザイルを用いるときには多くの結び方や各種の技術、用法に十分熟達したうえでなければ危険である。 [徳久球雄] [参照項目] |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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