A tire for a vehicle includes a tire body having a circumferentially extending tread portion with an outer surface and an inner surface. First and second sidewalls are joined to the tread portion, and the first and second sidewalls terminate in first and second edges, respectively, and are configured to be secured within a flange of a rim of a wheel. In addition, the tire includes a tire insert comprising a circumferential hoop of resilient material and positioned adjacent to the inner surface of the tread portion. The tire insert may have an arcuate cross section and a width that extends across from the first sidewall to the second sidewall. The resilient material of the tire insert may comprise spring steel of a steel alloy and be in a state of compression.

A tire for a vehicle includes a tire body having a circumferentially extending tread portion with an outer surface and an inner surface. First and second sidewalls are joined to the tread portion, and the first and second sidewalls terminate in first and second edges, respectively, and are configured to be secured within a flange of a rim of a wheel. In addition, the tire includes a tire insert comprising a circumferential hoop of resilient material and positioned adjacent to the inner surface of the tread portion. The tire insert may have an arcuate cross section and a width that extends across from the first sidewall to the second sidewall. The resilient material of the tire insert may comprise spring steel of a steel alloy and be in a state of compression.

There is provided silicone based materials with enhanced tackiness upon cure. These may be used for cured self-adhering silicone-based products such as pressure sensitive adhesives, self-adhering materials and/or self-sealing materials, made from condensation curable silicone-based compositions, the compositions therefor and to applications for which said self-adhesive products may be used. In one particular application the cured silicone based material may be utilised as a self-sealing layer in an inflatable article such as a pneumatic tire.

There is provided silicone based materials with enhanced tackiness upon cure. These may be used for cured self-adhering silicone-based products such as pressure sensitive adhesives, self-adhering materials and/or self-sealing materials, made from condensation curable silicone-based compositions, the compositions therefor and to applications for which said self-adhesive products may be used. In one particular application the cured silicone based material may be utilised as a self-sealing layer in an inflatable article such as a pneumatic tire.

A peristaltic pump chamber with shape memory for pressure adjustment in tires is provided and which is part of the tire or is adjacent to the tire wall or is a part of a vehicle wheel, in particular for tires with an inner tube, e.g. bicycle tires.

A peristaltic pump chamber with shape memory for pressure adjustment in tires is provided and which is part of the tire or is adjacent to the tire wall or is a part of a vehicle wheel, in particular for tires with an inner tube, e.g. bicycle tires.

Provided is a pneumatic tire vulcanizing method which includes the steps of setting a green tire in a mold, inserting a bladder inside the green tire, and expanding the bladder to press the bladder to an outer side in the tire radial direction and perform vulcanization molding. The bladder is expanded with a rigidity reinforcement ring interposed between an inner circumferential surface of a region of the green tire corresponding to a tread portion and an outer circumferential surface of a region of the bladder corresponding to the tread portion.

Provided is a pneumatic tire vulcanizing method which includes the steps of setting a green tire in a mold, inserting a bladder inside the green tire, and expanding the bladder to press the bladder to an outer side in the tire radial direction and perform vulcanization molding. The bladder is expanded with a rigidity reinforcement ring interposed between an inner circumferential surface of a region of the green tire corresponding to a tread portion and an outer circumferential surface of a region of the bladder corresponding to the tread portion.

When (I) a tyre 1 is in contact with a flat surface (S) with a camber angle θ of 40 degrees, (II) a load (F) applied to the tyre is increased from zero, and (III) a curve (T) is obtained by plotting, in a XY coordinate, a displacement (Δx) in a tyre axial direction and a displacement (Δy) in a tyre radial direction of a position (A) of one of tyre tread edges (Te) closer to the flat surface (S), the displacements being from a reference position (A0) when the load (F) is zero, inclination of the curve (T) increases as the load (F) increases at least in a range where the load (F) is not more than 78% of a maximum load capacity load of the tyre.

An insert for a pneumatic tire including an annular member adapted to contact at least 10% of an interior surface of the pneumatic tire and provide an outward pressure thereagainst.