An improved 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.

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.

A tire includes a tire frame member that has bead portions in which bead cores are embedded in a resin material and side portions that comprise the resin material and are continuous with tire radial direction outer sides of the bead portions, wherein assuming that T1 is a thickness of thick-walled portions of the tire frame member that are adjacent to the tire radial direction outer sides of the bead cores and that T2 is a thickness of the side portions, T1>T2, a thickness of the tire frame member decreases from T1 to T2 between the thick-walled portions and the side portions, and a position at which the thickness of the tire frame member starts to decrease from T1 to T2 is on a tire radial direction outer side of tire radial direction outer ends of rim flanges of a rim on which the bead portions are mounted.

A tire includes a tire frame member that has bead portions in which bead cores are embedded in a resin material and side portions that comprise the resin material and are continuous with tire radial direction outer sides of the bead portions, wherein assuming that T1 is a thickness of thick-walled portions of the tire frame member that are adjacent to the tire radial direction outer sides of the bead cores and that T2 is a thickness of the side portions, T1>T2, a thickness of the tire frame member decreases from T1 to T2 between the thick-walled portions and the side portions, and a position at which the thickness of the tire frame member starts to decrease from T1 to T2 is on a tire radial direction outer side of tire radial direction outer ends of rim flanges of a rim on which the bead portions are mounted.

A vehicle tire-wheel assembly includes: a wheel main body; a Helmholtz resonator provided on an outer peripheral surface of a well portion of the wheel main body; a tire attached to an outer peripheral surface of the wheel main body so that the tire covers the Helmholtz resonator; and a separation restraining part which, in cooperation with the tire, restrains the Helmholtz resonator from separating from the outer peripheral surface of the well portion.

A rim for a tire for means of displacement preferably for heavy loads at low-speed. The rim may include a main tubular body having a cylindrical surface extending between two lateral edges, a bead-seat having a greater diameter than the cylindrical surface of the tubular body and overlapped to it and at least a side-ring being overlapped to one of the lateral edges for the lateral containment of the tire. The rim may include compensating means interposed between the cylindrical surface of the tubular body and the bead-seat and in contact with them to realise a compensation in thickness.

The rolling assembly has a rotation axis and comprises a rim having two rim seats that is axially outwardly extended by rim flanges, one adapter and a tire having two beads. The adapter provides the connection between one of the beads and the rim and comprises an axially inner end that is adapted to be mounted on one of the rim seats, an axially outer end that is adapted to receive one of the beads and an adapter body connecting the axially inner end and the axially outer end as to form a single piece. The two rim seats of the rim have different diameters with a gap D. The adapter is mounted onto the rim seat having smaller diameter. The rim seat of the rim has a smaller diameter positions on a side intended to be inside when the rolling assembly being mounted onto a vehicle.

Adapter for a rolling assembly intended to be fitted to a passenger vehicle, with improved mountability and a high capacity for absorbing large deformations in the event of pinch shocks. The adapter has reinforcing element (15) of the axially outer end (9) wholly situated axially on the outside of bearing face (21) and radially on the outside of adapter seat (18), and a main reinforcement (17) having a radial superposition of at least two layers of reinforcers, the reinforcers being mutually parallel within one and the same layer and crossed with one another from one layer to the next. Each of the layers of main reinforcement (17) comprises reinforcers which make, with a circumferential direction (XX) of the tire, an angle at least equal to 30, and coated with a polymer material having an elastic modulus at 10% elongation at most equal to 70 MPa.

A pneumatic tire in which a side reinforcement layer formed of a treated member is arranged, the treated member formed by coating with rubber organic fiber cords extending parallelly to ply cords of a carcass ply of the carcass main body, only on a sidewall portion of a half portion on one tire widthwise side; a tire radial inner end of the side reinforcement layer is located on a side inner in the tire radial direction than a tire radial outermost position of a rim flange, and a tire radial outer end of the side reinforcement layer overlaps the belt by 5 mm or more in a tire widthwise direction; and the tread portion has one or more circumferential main grooves, and a contact width of a tire widthwise outermost land portion is larger than a contact width of a tire widthwise outermost land portion.

A pneumatic tire in which a side reinforcement layer formed of a treated member is arranged, the treated member formed by coating with rubber organic fiber cords extending parallelly to ply cords of a carcass ply of the carcass main body, only on a sidewall portion of a half portion on one tire widthwise side; a tire radial inner end of the side reinforcement layer is located on a side inner in the tire radial direction than a tire radial outermost position of a rim flange, and a tire radial outer end of the side reinforcement layer overlaps the belt by 5 mm or more in a tire widthwise direction; and the tread portion has one or more circumferential main grooves, and a contact width of a tire widthwise outermost land portion is larger than a contact width of a tire widthwise outermost land portion.