An adjustable portal box assembly for selectively mounting a wheel to an off road vehicle in either of two positions. The assembly includes a mounting plate mountable to the suspension of an off road vehicle, and a portal box is mountable to the mounting plate. The portal box includes an input shaft opening for an input shaft, and an output opening for an output shaft. The portal box is mountable to the mounting plate in a first position in which the output shaft is positioned to extend the wheelbase relative to the input shaft, or in a second position in which the output shaft is positioned in vertical alignment with the input shaft.

An adapter, for a rolling assembly having an axis of rotation and comprising a tyre (P) having two beads (B), and a rim (J), provides the connection between one of the beads (B) and the rim (J), the said rim having two rim seats (7), the said adapter having an axially inner end (10) intended to be mounted on the rim seat (7) and comprising an inner reinforcing element (16), the said reinforcing element (16) having a centre C.sub.2, an axially outer end (9) comprising an outer reinforcing element (15), the said reinforcing element (15) having a centre C.sub.1, a body (11) that connects the said outer end (9) to the said inner end (10) so as to form a single piece and comprises at least one main reinforcement that provides the connection between the said outer reinforcer and the said inner reinforcer, and comprises a first end (17A) and a second end (17B), a substantially cylindrical adapter seat (18) intended to receive one of the said beads (B), the said seat (18) being situated at the axially outer end (9) of the said body (11), an adapter bearing face (21) substantially contained in a plane perpendicular to the axis of rotation, the said bearing face being situated on the axially inner face of the axially outer end (9), and an overall length L and a length LT measured between the centres C.sub.1 and C.sub.2. The first end (17A) and the second end (17B) of the reinforcement are arranged one upon the other so as to form an overlap.

A wheel assembly to be coupled to a hub of a vehicle, may include arcuate inner rim assemblies removably coupled together to define a circular inner rim to be coupled to the hub of the vehicle. Each arcuate inner rim assembly may include an arcuate inner rim segment, and an arcuate inner ring segment extending radially outward from the arcuate inner rim segment. The wheel assembly may also include arcuate outer rim assemblies removably coupled together to define a circular outer rim. Each arcuate outer rim assembly may include an arcuate outer rim segment, and an arcuate outer ring segment extending radially inward from the arcuate outer rim segment. The wheel assembly may also include gas springs operatively coupled between the circular inner rim and the circular outer rim to provide a gas suspension for relative movement therebetween.

A flexible adapter (1) for a rolling assembly, said rolling assembly comprising a tyre (2) having two beads (21), a rim (3) and two adapters (1) each intended to ensure the joint between one of the beads (21) and the rim (3), said rim (3) having two rim seats (31) each extended axially outwards by a rim flange (32), the rim seat having a diameter D3, the adapter comprising an axially outer end (11) and a body (12) oriented substantially axially and disposed between said axially outer end (11) and said axially inner end (10), said body (12) having a radially outer face (121) and a radially inner face (122), having the intersection between the shoulder (111) of the axially outer end (11) of the adapter (1) and the substantially tapered face of said adapter seat (13) forming a circle of diameter D1, said adapter seat (13) having a substantially tapered face of angle α, in which the difference “d” between the diameters D1 and D3, d=D1−D3, lies between 25.9 mm and 30.4 mm and the angle α is greater than 0.5°.

An improved clamping mechanism to secure a tire between a bead ring and a wheel utilizing a bolt is provided. The bolt has a ball seat that pivots within an enlarged pilot hole in the bead ring as the bolt threads engage in threaded section of the wheel, pulling the bead ring toward the wheel. As the bead ring is tightened upon the wheel, eventually the bead ring contacts a fulcrum on the wheel, at which point the outer edge of the bead ring is leveraged against the tire bead bundle and pressing down the tire bead to lock it in place against the wheel. As the bead ring can pivot within the enlarged pilot hole around the bolt, the bolt is not stressed. Further, the wheel comprising a safety bead and non-skid coating on the inner wall of the wheel to prevent the wheel sliding around the wheel.

The tire comprises an outer ring structure with a tread, the outer ring structure comprising a first support ring and a second support ring, the first and second support rings being substantially coaxial around the tire axis; an inner ring structure, the inner ring structure comprising a first base ring and a second base ring, the first and second base rings being substantially coaxial around the tire axis; and a connecting structure effective to transfer load from the inner ring structure to the outer ring structure, the connecting structure including first and second spokes made of reinforced rubber that connect the first and second support rings to the first and second base rings.

A rim assembly for a non-pneumatic tire has at least two rim components including: a first rim component having a first rim flange and a first lip, and a second rim component having a second rim flange and a second lip. The rim assembly further includes a plurality of lateral rim component support structures configured to extend through a plurality of openings of a tire support structure. The rim assembly also includes a first plurality of fasteners securing the plurality of lateral rim component support structures to the first rim flange, and a second plurality of fasteners securing the plurality of lateral rim component support structures to the second rim flange.

A portal box assembly for mounting a wheel to an off road vehicle in a lifted and extended wheelbase position. The assembly includes a portal gear box having an input shaft opening for an input shaft, and an output shaft extending from an output shaft opening. The portal gear box also includes a set of gears effective to transmit power from the input shaft to the output shaft, and optionally to reduce the gear ratio. The assembly is mountable to the vehicle in an extended wheelbase position in which the output shaft is positioned below and forward of the input shaft when the assembly is used to mount a forward wheel, and in which the output shaft is positioned below and rearward of the input shaft when the assembly is used to mount a rear wheel.

An adjustable portal box assembly for selectively mounting a wheel to an off road vehicle in either of two positions. The assembly includes a mounting plate mountable to the suspension of an off road vehicle, and a portal box is mountable to the mounting plate. The portal box includes an input shaft opening for an input shaft, and an output opening for an output shaft. The portal box is mountable to the mounting plate in a first position in which the output shaft is positioned to extend the wheelbase relative to the input shaft, or in a second position in which the output shaft is positioned in vertical alignment with the input shaft.

An adjustable portal box assembly for selectively mounting a wheel to an off road vehicle in either of two positions. The assembly includes a mounting plate mountable to the suspension of an off road vehicle, and a portal box is mountable to the mounting plate. The portal box includes an input shaft opening for an input shaft, and an output opening for an output shaft. The portal box is mountable to the mounting plate in a first position in which the output shaft is positioned to extend the wheelbase relative to the input shaft, or in a second position in which the output shaft is positioned in vertical alignment with the input shaft.