| 翻訳と辞書 |
| Cowboy bowline ： ウィキペディア英語版 |
Cowboy bowline
The cowboy bowline (also left-hand bowline, Dutch marine bowline or winter bowline) is a variation of the bowline loop knot. Some hearsay suggest the Dutch Navy uses (or used) this variant of the bowline because they consider it superior since the working end is not so easily pushed back by accident. However, there is no documentation to confirm this allegation, and some Dutch knot tyers outright deny it. Another piece of unverified lore is that it is called a winter bowline because the exposed working end on the outside would blow in the wind and prevent it from freezing to the loop on ships in the north Atlantic during winter. (This suggests that the standard bowline would be the summer bowline.) ''The Ashley Book of Knots'' states that it is "distinctly inferior" to the standard bowline〔Clifford W. Ashley, ''The Ashley Book of Knots'' (New York: Doubleday, 1944), 188.〕 because of its similarity to the left-hand sheet bend.〔Clifford W. Ashley, ''The Ashley Book of Knots'' (New York: Doubleday, 1944), 16.〕 Various tests of the different versions' strengths show little difference; conjecture about either knot's vulnerability to some failure remain pretty much only that – conjectures. In fact, though, this version of the knot is much more resistant to failing on "ring-loading" – i.e., where the eye of the knot is loaded as though it is a ring / sling.
The reason for the superior performance of the Cowboy bowline when ring-loaded is that the knot is then loaded as the correct form of the Lapp knot,〔()〕 a secure bend, whereas the bowline, when ring loaded, is loaded as an incorrect form of the Lapp knot, an unsafe bend.〔See the comment in the (International Guild of Knot Tyers forum message ).〕
As for the tail of a regular bowline finishing "inside the loop (eye )", that is more a formal-image state than one of an actual knot, as the draw of the standing part will pull the tail around so that it actually points away from the eye, but there are various ways the knot can be dressed to affect this aspect.
== Difference from bowline ==
The cowboy bowline has the working end go around the standing part on the side closer to the loop and results with the working end outside the loop. In contrast, a regular bowline has the working end finishing inside the loop.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Cowboy bowline」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|