| 摘要 |
PROBLEM TO BE SOLVED: To provide roller shoes with which roller-skating can be done anywhere. SOLUTION: A bladder 4 is attached to shoe 1, a griddle 5 and a roller 3 are attached to the bladder 4, and when water is supplied to the bladder 4 from a hose 2, the bladder 4 inflates and the roller 3 is extruded from the bottom of the shoe, so that the roller-skating can be done. COPYRIGHT: (C)2005,JPO&NCIPI
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