A vehicle tire, as a rubber member, includes, on at least a part of the surface thereof, a fine ridged/grooved structure formed via transfer from a mold and having fine ridged/grooved portions arranged at a constant arrangement pitch, wherein a region in which the fine ridged/grooved structure is provided is visually recognizable by a different structural color from the colors of other regions. The fine ridged/grooved structure is formed on a sidewall portion of the vehicle tire, and the region in which the fine ridged/grooved structure is provided is formed in a shape to display predetermined information.

An insert for a mould for vulcanising tyres for vehicle wheels, the insert arranged to receive in a seat formed on a moulding surface of the mould and comprising a base surface from which a plurality of projections extends; wherein, each projection comprises a lateral surface extending away from the base surface such that the lateral surface defines a tapered profile of the projection away from the base surface, is inclined at an angle between 10? and 25? with respect to a direction perpendicular to the base surface, and has a roughness between 4 and 11 ?m.

Provided is a pneumatic tire that can suppress an increase in weight and deterioration of rolling resistance even when a protrusion-like mark having a large raised height is provided on a sidewall portion. A green tire production method 100 includes: a first step S1 of forming a cylindrical or annular unvulcanized carcass; a second step S2 of winding an unvulcanized sidewall rubber on each of a pair of outer circumferential surfaces of the carcass on an outer side in an axial direction; and a third step S3 of locally attaching an unvulcanized band-shaped rubber to a part of an outer circumferential surface of at least one of the sidewall rubbers.

A process and an apparatus for labelling tires for vehicle wheels. The apparatus includes an application head with a support surface for a label to be applied, at least one label holder feeder and movement devices connected to the application head. The movement devices are configured for moving the application head between the label holder feeder for picking up a label, and an application zone of the label to a green tire. The apparatus further includes a guide device located at the application zone. The guide device includes a guide extending along a predefined path and a support movable along the guide.

A tire includes: a pattern portion, in which plural ridges having ridgelines are arranged adjacent to each other, on a tire surface, the ridgelines including a main body portion and a first extending portion and a second extending portion that extend in different directions from the main body portion in plan view, in which the first extending portion of a ridge and the second extending portion of an adjacent ridge at least partially overlap each other when viewed from a direction orthogonal to an adjacent direction of the ridges, a height of the ridge is from 0.2 mm to 0.5 mm, and ridges adjacent to each other are arranged at a constant pitch of from 0.15 mm to 0.35 mm.

Identification labels and their incorporation in rubber-based articles are described. The labels include RFID components and can be incorporated in tires. The labels can withstand the relatively harsh conditions associated with vulcanization.

Provided is a tire on which cracks on sidewall portion outer surfaces are unlikely to progress. The tire comprises a depthwise part I from a point on a sidewall portion outer surface to 0.5 mm on at least a part of a sidewall portion, wherein: the depthwise part I satisfies the following requirement: the depthwise part I: comprising a natural rubber, a butadiene rubber, and a thermoplastic elastomer; a peak temperature T1 ( C.) of tan is 20 C. or more and 5 C. or less; and when tan at the peak temperature T1 ( C.) is 1 and a storage modulus at the peak temperature T1 ( C.) is E1 (MPa), 10.90 and E1MPa.

A color mark structure applying on rubber product comprises cellophane and a transfer paper. The transfer paper is arranged on the cellophane and a predetermined color or a predetermined pattern with a predetermined color is printed thereon by screen printing. The transfer paper having the predetermined color or the predetermined pattern with the predetermined color and the cellophane are attached on the rubber product. The upper and lower sides of the transfer paper are respectively connected with the cellophane and the rubber product.

A holder is for arranging a foil on the mold surface of a sidewall shell of a vulcanizing mold. The holder has a sleeve which can be pressed into a bore in the sidewall shell and, arranged in the sleeve, a helically-spring-mounted, coaxially movable pin. The pin has a pin head which, in an initial position, projects beyond an end of the sleeve with the force of the spring and on which a foil can be positioned on the mold surface. The pin, in an end position, is movable into the sleeve counter to the force of the spring such that the pin head end remote from the pin is aligned with the end of the sleeve. The pin head forms a clearance fit with the sleeve. The clearance fit is such that the pin is movable in the sleeve but no rubber material can ingress into the sleeve.

A process and an apparatus for labelling tyres for vehicle wheels. The apparatus includes an application head with a support surface for a label to be applied, at least one label holder feeder and movement devices connected to the application head. The movement devices are configured for moving the application head between the label holder feeder for picking up a label, and an application zone of the label to a green tyre. The apparatus further includes a guide device located at the application zone. The guide device includes a guide extending along a predefined path and a support movable along the guide.