| 摘要 |
A roller skate includes a base for supporting wheels and a support for attaching to a boot. The base includes a hub 32 and a slot 35. The support includes a pair of extensions extended downward for slidably engaging with the side portions of the base and for guiding and limiting the support to move up and down relative to the base. A shaft 53 is secured to the extensions and slidably engaged in the slot for limiting the up and down movement of the support relative to the base. A spring is engaged between the base and the support for cushioning the support. A resilient member 37 may also be inserted in the slots 35.
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