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US 10,376,773 B2Granted
Wheel-bearing truck
OwnerRasyad Chung, Stephen F. Sporerinventors
Life of this patent
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Abstract
A wheel-bearing truck as might be used on a skateboard includes a base, a transverse hanger mounted pivotally at or near its center to the base and adapted to bear a road-engaging wheel at each opposed end. There is a pair of telescopic arms, one end of each being attached to the hanger flanking its center. A longitudinal spring fixed with respect to the base interacts with the other end of each telescopic arm.
Claims3
A truck comprising:
- a base comprising a hanger pivot pin, and a longitudinal v-shaped guide,
- a transverse hanger mounted at its center to the hanger pivot pin and adapted to bear a road-engaging wheel at each opposed end thereof,
- a pair of telescopic arms, each telescopic arm comprising a hanger end portion and a slider end portion that is capable of telescoping within the hanger end portion,
- each slider end portion is connected to a slider by a ball joint,
- each hanger end portion pivotally attaches to the hanger and flanks the hanger pivot pin,
- the slider is fixed to a spring sleeve that houses a longitudinal spring and the slider is capable of sliding along the longitudinal v-shaped guide,
- a preload bolt passes through the longitudinal spring with one end attached to the base and it other end attached to a preload nut, wherein rotation of the preload bolt will compress the longitudinal spring.
4 more elements
Dependencies are inferred from the claim text.