A tire and rim seal is disclosed by which to reliably seal the beads of a tire against the rim of a wheel on which the tire is mounted so as to advantageously prevent the tire from leaking air and slipping off the beads of the rim. The tire and rim seal includes an elastomer that is seated on the rim and a rigid backing that lays on top of the elastomer. A plurality of threaded bolts extend from the rigid backing and run through the elastomer and the rim of the wheel. A corresponding plurality of threaded nuts are rotated around the threaded bolts and tightened against the rim so as to pull the rigid backing towards the rim. Accordingly, a compressive force is generated by which to cause the elastomer to be sandwiched between the rigid backing and the rim so as to expand along the rim and move into sealing engagement with the rim and the beads.

A tire structure, including a rim, an outer tire, an inner tube, and an inflating valve; an outer peripheral surface of the rim is provided with a mounting groove; tire beads of the outer tire are hermetically connected with side walls of the mounting groove, so that a hermetically sealed air cavity is formed between the rim and the outer tire; the inner tube is annular and made of an elastic porous material, with a sectional size larger than that of the air cavity; the inner tube is disposed in the air cavity so that an outer surface of the inner tube is tightly attached to an inner wall of the air cavity; the inflating valve is mounted to the rim to inflate the air cavity and the inner tube. Impact force can be absorbed to protect the rim even when the tire is not completely inflated.

A tire structure, including a rim, an outer tire, an inner tube, and an inflating valve; an outer peripheral surface of the rim is provided with a mounting groove; tire beads of the outer tire are hermetically connected with side walls of the mounting groove, so that a hermetically sealed air cavity is formed between the rim and the outer tire; the inner tube is annular and made of an elastic porous material, with a sectional size larger than that of the air cavity; the inner tube is disposed in the air cavity so that an outer surface of the inner tube is tightly attached to an inner wall of the air cavity; the inflating valve is mounted to the rim to inflate the air cavity and the inner tube. Impact force can be absorbed to protect the rim even when the tire is not completely inflated.

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.

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.

Adapter for rolling assembly comprising tire and rim to provide the connection therebetween. The adapter has axially inner end with inner reinforcing element, axially outer end with outer reinforcing element, and a body. The outer reinforcing element, axially outside of bearing face (21), is a bead wire made of three layers (23, 24, 25) of metal threads and concentric. First layer (23) includes metal thread of diameter D1, 0.8D15 mm, second layer (24) has metal thread of diameter D2, D21.4D1, and wound in a helix at angle A2, 2A210, and third layer (25) has metal thread of diameter D3 and wound in a helix around second layer (24) at angle A3, 2A310, and of opposite sign to A2.

Adapter for rolling assembly comprising tire and rim to provide the connection therebetween. The adapter has axially inner end with inner reinforcing element, axially outer end with outer reinforcing element, and a body. The outer reinforcing element, axially outside of bearing face (21), is a bead wire made of three layers (23, 24, 25) of metal threads and concentric. First layer (23) includes metal thread of diameter D1, 0.8D15 mm, second layer (24) has metal thread of diameter D2, D21.4D1, and wound in a helix at angle A2, 2A210, and third layer (25) has metal thread of diameter D3 and wound in a helix around second layer (24) at angle A3, 2A310, and of opposite sign to A2.

Rolling assembly comprising tire P, rim J, adapter connecting a bead and the rim. The adapter has axially outer (9) and inner (10) ends mounted on rim seat (7) having respective outer (16) and inner (20) reinforcers. Body (11) connects the outer (9) and inner (10) ends forming a single piece, an adapter seat (18) receives a bead and is situated at end (9), an adapter bearing face (21) in a plane perpendicular to the rotation axis, and situated on the axially inner face of outer end (9). Reinforcer (20) of end (9) is axially outside bearing face (21). The body comprises, opposite adapter seat (14), annular seat reinforcer (19) and the adapter comprises conductive strip (22) positioned over all or part of the circumferential perimeter of said adapter and along a complete path extending from adapter seat (14) to rim flange (8).

Rolling assembly comprising tire P, rim J, adapter connecting a bead and the rim. The adapter has axially outer (9) and inner (10) ends mounted on rim seat (7) having respective outer (16) and inner (20) reinforcers. Body (11) connects the outer (9) and inner (10) ends forming a single piece, an adapter seat (18) receives a bead and is situated at end (9), an adapter bearing face (21) in a plane perpendicular to the rotation axis, and situated on the axially inner face of outer end (9). Reinforcer (20) of end (9) is axially outside bearing face (21). The body comprises, opposite adapter seat (14), annular seat reinforcer (19) and the adapter comprises conductive strip (22) positioned over all or part of the circumferential perimeter of said adapter and along a complete path extending from adapter seat (14) to rim flange (8).

A tire (10), including a circular tire frame (17) including a resinous material, the resinous material including at least polypropylene and having a pentad ratio of from 88.2% to 93.4%. The resinous material may include at least a first resin that is polypropylene and a second resin that is different from the first resin.