| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem with a conventional blowgun dart that a loaded arrow slips down inside a blowpipe which occurs due to a relation between the arrow and the blowpipe. SOLUTION: In the conventional blowgun dart, a magnet 6 is fitted to the cone 4 of the arrow, and a magnet 7 is fitted to the outer surface of the blowpipe 2. Two magnets are attracted to each other by a magnetic force to hold the arrow inside the blowpipe. COPYRIGHT: (C)2004,JPO
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