…Of these, lifesaving equipment is the basic tool for protecting human lives, and includes lifeboats and life rafts for group use, and life jackets for individual use. Life jackets are also called life jackets, and come in a variety of styles, including those made of buoyant materials such as kapok and those that inflate with gas, and also in various shapes, such as pillow-shaped, vest-shaped, and neck-worn. They are designed to have sufficient buoyancy and to keep the wearer's face facing upwards and the mouth exposed at a sufficient height above the water surface even when the wearer loses consciousness, but if worn incorrectly or loosely, it is difficult to maintain a stable floating position, and there is a high risk of being lost. … *Some of the terminology that mentions "life jacket" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このうち救命器具が人命を守る基本的な道具であり,これには集団で使用する救命艇や救命いかだなどと,個人ごとに使用する救命胴衣などとがある。救命胴衣はライフジャケットlife jacketとも呼ばれ,カポックなどの浮力材を用いたものやガスによる膨張式など種々の形式があり,形状も枕状,チョッキ型,首にかける型などさまざまである。十分な浮力をもつとともに,装着者が意識を失った状態でも,顔面が上方を向き口が水面上十分な高さに露出するように設計されているが,誤った装着状態やゆるんだ状態では安定した浮遊姿勢を保ちにくく,遭難する危険が大きい。… ※「life jacket」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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