| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a course-building unit for a roller blade, a skateboard, and a BMX (bicycle motocross), which can easily perform cost reduction, flexibility in course preparation, and transportation. Ž<P>SOLUTION: A sliding device is made as a unit type, so as to compose various configurations by combination of an approach plate and legs. Further, in a sliding device for playing, it is possible to compose the sliding surfaces of various configurations by suitably combining straight-line and curved pipes, a forked pipe, and the approach plate. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
