发明名称 Device for tying double bow knot
摘要 A device is provided which can be used as an educational means for teaching young children how to tie a double bow knot, particularly in their shoe laces, or as an aid to the handicapped child lacking sufficient manual dexterity in tying such a knot. Basically the device is a planar body member in which is provided two pairs of spaced-apart openings in alignment with one another, the two intermediate openings being connected by a narrow opening or slit. The device allows "bunny ear" loops to be formed in the intermediate spaced-apart openings and to form the double bow knot by making a simple overhand knot with the two "bunny ear" loops.
申请公布号 US4342557(A) 申请公布日期 1982.08.03
申请号 US19810271504 申请日期 1981.06.08
申请人 BANDAR, LESLEY F. 发明人 BANDAR, LESLEY F.
分类号 G09B19/00;(IPC1-7):G09B19/00 主分类号 G09B19/00
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