发明名称 SMALL-SIZED SAIL BOAT EQUIPPED WITH JIB SAIL
摘要 PURPOSE:To prevent the boat from excessively listing during strong wind as well as to ease disassembly and assembly of the sail boat in such a way that rear list only is prevented by a jib sail. CONSTITUTION:Though a mast 3 is held at its lower end part by a cylindrical concave part 20, and rear list is prevented by a jib sail 5, since a stay is not provided, in case where a sail undergoes the wind, it is to be listed in transverse direction by flection. If the mast 3 is listed in forward and rearward directions, it is unfavorable because the performance of the boat is changed, but list in the transverse direction is favorable because it prevents the boat from excessively listing by means that when it undergoes the strong wind, some of it lets pass by. Besides, the mast 3 can be exceedingly easily disassembled and assembled because what is to be done is to only insert it into the cylindrical concave part 20, but there is no need of fixing the stay.
申请公布号 JPS57155194(A) 申请公布日期 1982.09.25
申请号 JP19810041113 申请日期 1981.03.19
申请人 YAMAHA HATSUDOKI KK 发明人 KUBOTA AKIRA
分类号 B63H9/08;B63B15/02 主分类号 B63H9/08
代理机构 代理人
主权项
地址