| 摘要 |
PROBLEM TO BE SOLVED: To provide a preventing device of illegal boarding to a ship capable of reliably detecting the approach of pirates and automatically blocking the illegal boarding. SOLUTION: Handrail covers having a surface shape on which an anchor slips and covering a handrail are fitted removably and continuously on the upper deck of the ship in this preventing device of illegal boarding to the ship. A signal wire cut by the anchor if the anchor is hooked is stretched on the ship inside surface of the handrail covers when the handrail covers are fitted, and an alarm is issued by the cutting of the signal wire. |
