A tire-wheel assembly includes: a wheel having a rim portion at least part of which is formed of a non-magnetic material; and a tire mounted on the rim portion, in which a tread portion includes a belt formed of a non-magnetic material. The wheel includes, inside the rim portion in a tire radial direction, a container portion that contains a power receiving device that receives electric power supplied wirelessly from outside of the tire in the tire radial direction. The tire includes bead fillers. When BFH represents a radial height of the bead fillers and SH represents a tire cross-sectional heigh, 0.1≤BFH/SH≤0.5 holds true.

A tire-wheel assembly includes: a wheel having a rim portion at least part of which is formed of a non-magnetic material; and a tire mounted on the rim portion, in which a tread portion includes a belt formed of a non-magnetic material. The wheel includes, inside the rim portion in a tire radial direction, a container portion that contains a power receiving device that receives electric power supplied wirelessly from outside of the tire in the tire radial direction. The tire includes bead fillers. When BFH represents a radial height of the bead fillers and SH represents a tire cross-sectional heigh, 0.1≤BFH/SH≤0.5 holds true.

The present invention relates to an adhesive composition comprising: at least one phosphate salt chosen from sodium phosphate, potassium phosphate and mixtures of these phosphates; and at least one resin based on: at least one compound A1, compound A1 being chosen from a compound A11 comprising at least two functions, one of these functions being a hydroxymethyl function and the other being an aldehyde function or a hydroxymethyl function, or a compound A12 comprising at least one aldehyde function, or a mixture of a compound A11 and of a compound A12; and at least one phenol A21.

The present invention relates to an adhesive composition comprising: at least one phosphate salt chosen from sodium phosphate, potassium phosphate and mixtures of these phosphates; and at least one resin based on: at least one compound A1, compound A1 being chosen from a compound A11 comprising at least two functions, one of these functions being a hydroxymethyl function and the other being an aldehyde function or a hydroxymethyl function, or a compound A12 comprising at least one aldehyde function, or a mixture of a compound A11 and of a compound A12; and at least one phenol A21.

A non-pneumatic tire 1 comprises: a radially inner ring 3 coupled with an tire wheel H; a radially outer ring 2 comprising a radially outermost annular tread portion 5 having electrical conductivity, and a radially innermost second portion 6; and radial link portions 4 connecting between the radially outer and inner rings 2 and 3. The second portion 6, radial link portions 4 and radially inner ring 3 are each formed of a resin material containing carbon black to have electrical conductivity. The resin material comprises 0.5 to 20 parts by mass of carbon black having a BET specific surface area of from 300 to 1500 sq.Math.m/g with respect to 100 parts by mass of its resin component. The tread portion 5 is electrically connected with the second portion 6.

Disclosed are various embodiments for sensing wear of a tire tread and for providing for electrostatic discharge of electrostatic charge buildup in a vehicle. Various sensor structures and electrostatic discharge structures are created using conductive rubber compositions and/or other elements to achieve tire tread wear sensing and discharge of electrostatic buildup. Such structures include conductors made of conductive rubber compositions, for example, having an uncured or cured electrical resistance at 23° C. less than about 10 KΩ when formed into a wire about 254 millimeters long and 2 millimeters in diameter.

Disclosed are various embodiments for sensing wear of a tire tread and for providing for electrostatic discharge of electrostatic charge buildup in a vehicle. Various sensor structures and electrostatic discharge structures are created using conductive rubber compositions and/or other elements to achieve tire tread wear sensing and discharge of electrostatic buildup. Such structures include conductors made of conductive rubber compositions, for example, having an uncured or cured electrical resistance at 23° C. less than about 10 KΩ when formed into a wire about 254 millimeters long and 2 millimeters in diameter.

A pneumatic tire is provided in the tread portion with a land portion including a conductive portion made of a conductive rubber. The conductive portion has a radially inner end electrically connected to a conductive tire internal structural to be connected to a wheel rim, and a radially outer end exposed in a ground contacting top surface of the land portion. The conductive portion extends from its radially inner end to outer end while inclining toward a first side surface of the land portion. The first side surface comprises a radially inner part, and a radially outer part extending radially outwardly from the radially inner part while inclining to the radially outer end of the conductive portion at an angle greater than the radially inner part.

A system for powering an electronic device within a tire is provided, the system comprising: a generator; an electrically conductive wheel coated in a non-conductive coating, the wheel including rim lips, wherein one of the rim lips includes a conductive area; the tire including bead portions, sidewalls, shoulders, a tread oriented in a tread region, and an inner surface; a conductive element extending from a bead portion, and in contact with the inner surface; an electronic device within the vehicle tire; and a ground path extending through a thickness of the vehicle tire from the inner surface to an exterior surface in a contact patch of the tread; wherein the generator is electrically connected to the electrically conductive wheel; wherein the electronic device is electrically connected to the conductive element and the ground path; and wherein the conducive element contacts the conductive area.

A pneumatic tire manufacturing method is provided in which winding collapse is prevented, there is no possibility of adverse effects on the FV, a current-carrying layer can be formed easily, and down-stitching can be dispensed with or minimized in the manufacture of SOT-structure pneumatic tires having a base-pen structure in the tread. This pneumatic tire manufacturing method involves: a step in which a sidewall, an inner liner, and a ply are bonded on a first molding drum, beads are set, and the tread side part that will form the current-carrying layer is formed on the side wall, forming a first cover; a step in which a breaker and band are bonded on a second molding drum and the tread center part is formed on the band, shaping the tread ring; a step in which the first cover is inserted inside of the tread ring and inflated to bond to the tread ring with pressure; and a step in which the sidewall is bonded to the lateral surface of the first cover, and the tread side part and the tread center part are bonded together.