| 摘要 |
PROBLEM TO BE SOLVED: To provide a swimming counter 1km for use in when confirming how many times a person swims back and forth in a pool. SOLUTION: Fifteen strings 3 on which balls 4 and 5 with a number printed thereon are threaded, are attached to a waterproof and length adjustable wrist band body 1 and a swimming frequency is counted by moving the balls. There are two types of big balls 5 and small balls 4 and a cushion 6 is attached to the central part of the string 3 for fixing the moved ball. When counting from 1 to 10, the small balls 4 are moved and when counting 10, 20, 30, 40 and 50, the big balls 5 are moved. As for the small balls 4, two balls of 1 and 2, 3 and 4, 5 and 6, 7 and 8, and 9 and 10 are distinguished by using different colors so as to easily distinguish reciprocating the pool. As for the big balls 5, 10 and 20, 30 and 40, and 50 are distinguished by color so as to easily confirm that the user swam 1km in a 50 m pool, a 25 m pool or a 20 m pool respectively. COPYRIGHT: (C)2004,JPO&NCIPI
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