| 摘要 |
As described above, the roller shoes of the present invention have the following structures and functions: the two roller-grooves are at the front and back side of the undersurface of the base of the shoe; the rollers are affixed to the roller-grooves; the roller-shafts of the roller and the roller-shaft supporting grooves are linked by magnetic force so that the roller-shafts of the roller do not separate from the roller-shaft supporting grooves. Because these two rollers are fixed at the front and back side of the base of the shoe, the user can use them like roller skates. And, if he wants use them like usual shoes after using them as roller skates, he can shift their usage from the roller-shoes to common shoes by easily separating the rollers from the roller-grooves.
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