초록 ▼

A skateboard is provided with trucks, each of which carries a plurality of wheels mounted in independent suspension. Longitudinally extending swing arms carry the wheel axles forwardly or rearwardly through a yoke mounted under the skateboard by a pivot connection and by a resilient support. The arm

A skateboard is provided with trucks, each of which carries a plurality of wheels mounted in independent suspension. Longitudinally extending swing arms carry the wheel axles forwardly or rearwardly through a yoke mounted under the skateboard by a pivot connection and by a resilient support. The arms are resiliently biased by means of separate springs or torsion bars so that varying pressures across the skateboard platform alter the distance of the skateboard wheels from the underside of the platform and conversely roadway irregularities displace the skateboard wheels towards the platform independently one from another. In one embodiment the swing arms are mounted such that the wheel axles extend substantially across the axis of the resilient support.

대표청구항 ▼

In a wheel truck having wheels mounted for rotation about a wheel axis on a yoke which in turn is adapted for mounting on an elongate moveable platform along a support axis which extends through the longitudinal centerline of the platform said yoke being pivotable relative to the platform, the impro

In a wheel truck having wheels mounted for rotation about a wheel axis on a yoke which in turn is adapted for mounting on an elongate moveable platform along a support axis which extends through the longitudinal centerline of the platform said yoke being pivotable relative to the platform, the improvement comprising a pair of laterally spaced swing arms having distal ends for rotatably mounting the wheels, and means for mounting the proximal ends of the swing arms on the yoke for resiliently yieldable independent movement of their distal ends through arcs about a transverse axis, with the distal ends of the swing arms disposed so that the axes of rotation of the wheels substantially normally intersect the support axis so that a portion of the weight on the platform is carried through the support axis over the wheels.