| 摘要 |
In the present invention, there is provided an ice skateboard comprising a bottom surface and trucks and axles mounted to the bottom surface. A set of runners is pivotally mounted to the axles. Each of the runners has a solid body, a bearing assembly, a metal blade mounted to the solid body and a centre of gravity between the bearing assembly and the metal blade. The maximum radial dimension of the runner about the bearing assembly is shorter than the distance of the axle from the bottom surface of the skateboard such that each runner is free to rotate about one of the axles to recede against the board. In another aspect, the metal blade of each runner is mounted in a slot and a cushion strip is mounted between the metal blade and the bottom surface of the slot for absorbing a vertical movement of the blade. The movements of the metal blade on a rough ice surface is partly absorbed by the cushion strip and only partly transmitted to the solid body, to the trucks and to the bottom surface of the ice skateboard.
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