Patent ID: 8366508

Claim:
A toy vehicle track set, comprising: a track; and a booster proximate to the track for accelerating a toy vehicle along the track, the booster including: a first wheel having a folded configuration and including an outer wall, a central support, a thin-walled member coupled to the central support, and an intermediate wall, the intermediate wall being connected to the outer wall by an outer linkage having a substantially U-shaped cross section and being connected to the central support by an inner linkage having a substantially U-shaped cross-section, the first wheel being formed of a resilient material, the folded configuration of the first wheel allowing for movement of the outer wall of the first wheel; a second wheel having a folded configuration and an outer wall, the second wheel being formed of a resilient material, the folded configuration of the second wheel allowing for movement of the outer wall of the second wheel; and a drive mechanism connected to the first wheel and to the second wheel, the drive mechanism being operable to rotate the first wheel and the second wheel in opposite directions, the outer wall of the first wheel and the outer wall of the second wheel being engageable with a toy vehicle when the first wheel and the second wheel are rotated by the drive mechanism.