A wheel
OwnerRoger Thompsoninventor
Life of this patent
Estimating the term…
Abstract
A wheel (10) comprising means for providing one or more protrusions in a ground-engaging surface of the wheel. In some embodiments, the wheel comprises a first hub (18), a tire (12) mounted on the first hub (18), a second hub (20) rotatable with respect to the first hub (18), and means for deforming the tire in a generally radial direction in response to relative rotation between the first (18) and second hubs (20). The invention also provides a wheel cover (110) comprising an outer surface having one or more protrusions and, when the cover is fitted to a wheel, the outer surface of the cover (110) provides the ground-engaging surface (114) of the wheel. The wheel (10) and wheel cover (110) of the invention are particularly suited for use with prams and similar vehicles in order to impart a rocking motion to the pram during use.
Claims20
A wheel system for imparting a rhythmic rocking motion to a baby carriage, said wheel system comprising:
- a first hub;
- and a tire mountable to said first hub, said tire having at least one ground-engaging protrusion adapted to utilize a child's own weight and inertia to produce a rocking motion.
A wheel system for imparting a rhythmic rocking motion, said wheel system comprising:
- a first hub;
- a tire mountable to said first hub, said tire having an inner wall;
- a second hub rotatable with respect to said first hub, said second hub being of a smaller diameter than said first hub and being seated within said first hub;
- and a tire deforming means for deforming said tire in a generally radial direction, said tire deforming means being couplable between said second hub and said tire, and responsive to relative rotation between said first and second hubs to deform said tire.
A wheel system for imparting a rhythmic rocking motion to a baby carriage tire, said wheel system comprising:
- a tire cover adapted to be removably attachable to a baby carriage tire, said tire cover having ground engaging surface, a front wall, a rear wall, a tire receiving channel, and at least two recesses defined in said front wall;
- wherein said recesses being located opposite from each other and adapted to facilitate the further deformation of said tire cover;
- and wherein said ground engaging surface comprising at least one protrusion.
Dependencies are inferred from the claim text.