| 摘要 |
Skateboard is an invention in the field of sports and amusement that gives, to up to now known boards for driving, completely new possibilities. On the side of treading board of a rectangular shape (1) turned toward the ground there are housings of a ball-shaped wheel (2) that on its endings turned toward the ground have housing of a ball shaped sheeld (3) therein comprise a ball-shaped wheel (6) enclosed by a rimmed bearing (4) and (5) that is wound round the ball shaped wheel wound round (6), yet do not overstrain it so that the ball-shaped wheel ball (6) is loose enough to move and there is a lot of freedom of moving and that 360 DEG in all directions thus skateboard driver for driving with ball-shaped wheels provide greater possibilities in moving. |
