发明名称 Uphauler for boardsailing
摘要 An improved uphauler assembly for use in facilitating the uphauling of a sail of a sailboard by a user wearing a harness including a harness hook. The assembly includes an uphauler rope or line formed in a large loop having a small loop at one end. The large loop is held in a pulley affixed near the front of the boom. The smaller loop is placed in the harness hook, and one end of the large loop is pulled, thereby raising the sail from the surface of the water with only half the force necessary with the usual method. An elastic cord retracts the assembly against the front of the mast when the unit is not in use.
申请公布号 US4993339(A) 申请公布日期 1991.02.19
申请号 US19900474341 申请日期 1990.02.02
申请人 COOPER, FRANK H.;WATKINS, DONALD E. 发明人 COOPER, FRANK H.;WATKINS, DONALD E.
分类号 B63B35/79 主分类号 B63B35/79
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