A wheel for a toy vehicle, the wheel comprising an axle hub defining a wheel axis of rotation and a rim with an inboard flange and an outboard flange each having an outer diameter. The wheel further comprises a primary tire forming the tread of the wheel with a tread diameter and a tread width. The primary tire is attached to the axle hub between the inboard and the outboard flange such that it rotates with the axle hub. The wheel further comprises an outboard slip ring rotatably mounted between the primary tire and the outboard flange so that the outboard slip ring can rotate with respect to the primary tire about the wheel axis of rotation. The outboard slip ring has an outer diameter smaller than the tread diameter and larger than the outer diameter of the outboard flange.

A wheel for a toy vehicle, the wheel comprising an axle hub defining a wheel axis of rotation and a rim with an inboard flange and an outboard flange each having an outer diameter. The wheel further comprises a primary tire forming the tread of the wheel with a tread diameter and a tread width. The primary tire is attached to the axle hub between the inboard and the outboard flange such that it rotates with the axle hub. The wheel further comprises an outboard slip ring rotatably mounted between the primary tire and the outboard flange so that the outboard slip ring can rotate with respect to the primary tire about the wheel axis of rotation. The outboard slip ring has an outer diameter smaller than the tread diameter and larger than the outer diameter of the outboard flange.

A structurally supported tire includes a ground contacting annular tread portion, an annular shear band and geodesic ply.

A structurally supported tire includes a ground contacting annular tread portion, an annular shear band and geodesic ply.

A method and apparatus for molding non-pneumatic wheels is provided. The exemplary method and apparatus allow for the use of the same molding system to manufacture wheels with different hub constructions. Different configurations of removable mold elements are utilized within the same molding system to provide wheels with different hub constructions.

A non-pneumatic tire for a vehicle or other machine. The non-pneumatic tire may include an annular beam. The annular beam may include a plurality of layers of different elastomeric materials. The annular beam may be free of a substantially inextensible reinforcing layer running in a circumferential direction of the non-pneumatic tire. The annular beam may include a plurality of openings distributed in the circumferential direction of the non-pneumatic tire. Such an annular beam may be part of other annular devices.

A tire for sand traction includes a ground-engaging tread that is disposed radially outwardly of a wheel. Structural elements extend radially between the wheel and the tread. The tread includes an inboard shoulder and an outboard shoulder. The tread is formed with a recess wall that extends laterally between the inboard shoulder and the outboard shoulder. The recess wall is disposed radially inwardly of the inboard shoulder and the outboard shoulder to form a central recess. The tire also includes a plurality of circumferentially-spaced, laterally-extending lugs. Each lug extends across the central recess from the inboard shoulder to the outboard shoulder.

Systems and methods for an energy harvester proximate to a rotatable component of a vehicle's wheel are disclosed. In some embodiments, an energy harvester system includes: a substrate having a first surface configured to contact and interface with a surface of a wheel, and a second surface opposite the first surface; a piezoelectric component configured to produce energy in response to mechanical strain imparted on the piezoelectric component, wherein the piezoelectric component is configured to deform while experiencing the mechanical strain so as to contact at least a portion of the second surface.

The rubber composite comprises a steel reinforcing element coated with an adhesive layer coating at least a portion of the reinforcing element. The adhesive layer comprises an adhesive composition comprising at least one phenol/aldehyde resin based on at least: one aromatic aldehyde and one polyphenol comprising one or more aromatic nucleus/nuclei. The coated steel reinforcing element is embedded in a rubber matrix based on a rubber composition comprising a crosslinking system comprising a content of molecular sulphur ranging from 1 to 5 phr.

A wheel assembly and method of assembling the same for use with an airless or non-pneumatic tyre. The assembly includes a rim member and at least one locking or retaining member. The rim member includes a first portion at least part of which is adapted to be attached to an axle in use, and at least part of the locking member is configured to detachably attach to at least part of the first portion of the rim member. Attachment to the rim member assists in retaining the tyre in position on rim member and/or the wheel assembly in use.