Title:
DOWNFALL RISK PREVENTION DEVICE FOR SAILING SHIP
Document Type and Number:
Japanese Patent JP2015140026
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for improving safety of a ship during navigation which travels by thrust obtained by wind blowing in atmosphere, using a sail like a yacht (in the following, the ship is called as a sailing ship, simply).SOLUTION: A float H capable of trailing at a lee side is added to a tip of a mast C. The float H attached to the mast tip is defined to be an air bag which is not inflated normally and which is inflated during splashdown. Air pressure can be reduced compared with a float of a conventional sphere having sufficient float force and overturn moment can be significantly reduced because the float H has no air inside in a normal time, for improving safety of a sailing ship.
Inventors:
FURUKAWA HIROYUKI
Application Number:
JP2014012034A
Publication Date:
August 03, 2015
Filing Date:
January 27, 2014
Export Citation:
Assignee:
FURUKAWA HIROYUKI
International Classes:
B63B43/14; B63B15/02; B63C9/19
Domestic Patent References:
JPH0396294U | 1991-10-01 | |||
JPS55179998U | 1980-12-24 | |||
JPH08198180A | 1996-08-06 | |||
JPS3613975B1 |
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