The invention relates to an assembly for a tyre comprising a first fabric, a second fabric and a load-bearing structure comprising filamentary load-bearing elements made of heat-shrinkable textile material connecting the first fabric to the second fabric, the load-bearing filamentary elements exhibit a thermal contraction CT, measured after 2 min at 185° C., greater than or equal to 5%.

Adapter for a rolling assembly comprising a tire, and a rim having two rim seats and two rim flanges. The adapter has an axially inner end mounted on the rim seat and comprises an inner reinforcing element, an axially outer end that comprises an outer reinforcing element, a body that connects the two ends to form a single piece. A substantially cylindrical adapter seat is configured to receive a bead, and is situated at the axially outer end of the body. An adapter bearing face is substantially contained in a plane perpendicular to the rotation axis, and situated on the axially inner face of the axially outer end. The reinforcing element of the axially outer end is entirely situated axially outside the bearing face. The body comprises, opposite the adapter seat, an annular seat reinforcer. The inner wall of the tire is covered by a layer of a self-sealing composition.

The assembly (24) comprises: a woven first fabric (26) comprising filamentary warp elements (64) comprising first and second filamentary members, a woven second fabric (28), a bearing structure (30) comprising filamentary bearing elements (32) connecting the woven first and second fabrics together. For a length at rest L of the woven first fabric (26): for any elongation of the woven first fabric (26) less than or equal to (2π×H)/L, the first filamentary member has a non-zero elongation and is not broken; there is an elongation of the woven first fabric (26), less than or equal to (2π×H)/L, and beyond which the second filamentary member is broken, in which H0×K≤H where H0 is the distance between the woven first and second fabrics (26, 28) when each filamentary bearing portion (74) is at rest, and K=0.50.

The assembly (24) comprises: a first structure (10) extending in a first overall direction (G1), a second structure (12), and a bearing structure (30) comprising filamentary bearing elements (32) comprising at least one filamentary bearing portion (74) extending between the first structure (10) and the second structure (12), the first structure (10) being arranged such that, for a length at rest L of the first structure (10) in the first overall direction (G1), the elongation at maximum force Art of the first structure in the first overall direction (G1) satisfies: Art≤(2π×H)/L, in which H0×K≤H where H0 is the mean straight-line distance between an internal face (42) of the first structure (10) and an internal face (46) of the second structure (12) when each filamentary bearing portion (74) is at rest, and K=0.50.

Disclosed is an anti-puncture shield insert for a wheel. The wheel includes a rim and an inflated tire connected to the edges of the rim. The shield insert is made of a shock-absorbing material. The shield insert is placed at the widest point between the inner sidewalls of the tire. As a hit causes the tire to collapse, the shield insert absorbs the shock taken by the tire and the rim, by staying between inner parts of the tire. The shield insert is floating relative to the tire.

A run-flat tire insert for installation in a pneumatic tire mounted on a rim. The insert is a one-piece toroidal member formed from expanded polymer foam beads molded into a structural foam part. The insert has an inner diameter surface sized to fit snuggly about a periphery of a tire rim and an outer diameter sized to fit within a tire cavity. The insert is spaced from the tire inner casing surface during normal operation and supports the tire inner casing surface away from the rim in the event of a flat tire. A molding apparatus and a method of forming a run-flat tire insert is also disclosed.

A run-flat tire has: a pair of bead cores, each bead core formed by covering a wire with resin; a carcass that straddles the pair of bead cores, and having end portions that are anchored on the bead cores; side reinforcing rubbers that are provided at tire side portions, and that extend in a tire radial direction along an inner surface of the carcass; and a tread that is provided at an outer side, in a tire radial direction, of the carcass.

The assembly (24) comprises: a woven first fabric (26) extending in an overall direction (G1) and comprising filamentary warp elements (64) extending in a direction (C1) parallel to the overall direction (G1) comprising first and second filamentary members, a woven second fabric (28), a bearing structure (30) comprising filamentary bearing elements (32) connecting the woven first and second fabrics together, each filamentary bearing element (32) comprising a filamentary bearing portion (74) extending between the woven first and second fabrics (28). For a length at rest L of the woven first fabric (26): for any elongation of the woven first fabric (26) less than or equal to (2H)/L, the first filamentary member has a non-zero elongation and is not broken; there is an elongation of the woven first fabric (26), less than or equal to (2H)/L, beyond which the second filamentary member is broken, in which H0KH where H0 is the distance between the woven first and second fabrics (26, 28) when each filamentary bearing portion (74) is at rest, and K=0.50.

The assembly (24) comprises: a first structure (10) extending in a first overall direction (G1), a second structure (12), and a bearing structure (30) comprising filamentary bearing elements (32) comprising at least one filamentary bearing portion (74) extending between the first structure (10) and the second structure (12), the first structure (10) being arranged such that, for a length at rest L of the first structure (10) in the first overall direction (G1), the elongation at maximum force Art of the first structure in the first overall direction (G1) satisfies: Art(2H)/L, in which H0KH where H0 is the mean straight-line distance between an internal face (42) of the first structure (10) and an internal face (46) of the second structure (12) when each filamentary bearing portion (74) is at rest, and K=0.50.

A tire-wheel assembly includes a run-flat support member disposed on an inner side of a tread portion of a pneumatic tire, wherein the run-flat support member is made from a foamed body and has a height or greater of a cavity height of the pneumatic tire. When an internal pressure of the pneumatic tire is higher than a predetermined air pressure, the run-flat support member does not come into contact with a rim of the wheel, a side portion of the pneumatic tire, or an inner circumferential surface of a bead portion When an internal pressure of the pneumatic tire is equal to or lower than a predetermined air pressure, an inner side of the run-flat support member in a tire radial direction comes into contact with an outer circumference of the rim of the wheel and/or the inner circumferential surface of the bead portion of the pneumatic tire.