PROBLEM TO BE SOLVED: To provide a thruster of a craft, which reduces resistance during navigation by providing a cover for an opening of a tunnel and which can make the amount of protrusion small when the cover is opened.SOLUTION: A thruster of a craft includes: a thruster tunnel 61 that is provided in a laterally penetrating manner in a hull and within which a propeller is installed; a cover 64 for closing an opening 63 of the thruster tunnel 61; a guide mechanism for guiding the cover 64 so that it can be opened/closed in such a manner as to slide along an outer plate 1a; and driving means 75 for driving the cover 64 so that it can be opened/closed.
【課題】トンネルの開口部にカバーを設けて航行中の抵抗を低減させるとともに、カバー開放時の突出量を小さくすることができるようにした、船舶のスラスターを提供する。【解決手段】船体に横方向へ貫通して設けられ、内部にプロペラが設置されたスラスタートンネル61と、スラスタートンネル61の開口部63を塞ぐカバー64と、カバー64を外板1aに沿ってスライド開閉するように案内するガイド機構と、カバー64を開閉駆動する駆動手段75と、を備える。【選択図】図4
THRUSTER OF CRAFT AND COVER DEVICE FOR THRUSTER TUNNEL
船舶のスラスター及びスラスタートンネルのカバー装置
2015-08-20
Patent
Electronic Resource
Japanese