A method and a device for post-treating tyres after a vulcanization process, which supports slow and controlled cooling of the finished tyre containing residual heat from a first to a second temperature level within an insulating chamber of a PCD and with the optional use of internal tyre pressure by a support gas as part of a PCI function.

The molding element has a plurality of contacting elements delimited by a plurality of grooves and has a molding surface for forming a contact face and a groove forming rib portion for forming the groove. The groove forming rib portion provides a space opening to one of the rib side faces and/or to the rib top face and an insert that is received in the space for forming a portion of the groove and a closing device in the groove. The insert is composed of thin plates stacked with one another. The forming plate assembly also comprises at notched plates of thickness t1, and each notched plate includes a notch for forming a flexible fence, and the notched plate has no area overlapping to the notch in the other notched plated adjacent thereto in sectional view in a direction along which the groove forming rib portion extends.

An RFID mesh label configured to be integrally incorporated within a vulcanized tire and to further provide unique identifier(s) and/or other information about the vulcanized tire during and/or post-vulcanization, the RFID mesh label including a face layer configured to be positioned adjacent or flush to an outer surface of the vulcanized tire; an RFID layer positioned underneath the face layer, the RFID layer having an RFID device that is configured to provide unique identifier(s) and/or other information about the vulcanized tire upon being read with an RFID reader; and a mesh backing overlying the RFID layer and adapted to be integrally incorporated in a vulcanized tire after subjecting a green tire to a vulcanization process.

A mold (20) for curing a tire comprises at least one body, such as a shell (21) or a lining, and at least one insert (22) mounted removably in a housing of the body, the molding surface (23) of the body having a first texture pattern (24), the molding surface (25) of the insert having a marking pattern (26). The molding surface of the insert also has a second texture pattern (27) chosen such that the surface molded by the second texture pattern contrasts with the surface molded by the marking pattern (26), and contrasts barely, if at all, with the surface molded by the first texture pattern (24).

One or more embodiments of the present invention provide a method for applying a dual compound coextruded continuous strip of a first compound and a second compound, the method comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

Provided is a tire provided with a mark capable of reducing the air resistance during tire rotation while maintaining good visibility. A tire is provided with a mark on a tire side portion. The mark includes a first mark located on an outer side in a tire radial direction, and a second mark located inward of the first mark in the tire radial direction. Each of the first mark and the second mark includes a recess that is recessed from a side profile surface of the tire side portion. A depth of the recess of the first mark from the side profile surface is smaller than a depth of the recess of the second mark from the side profile surface.

An RFID mesh label configured to be integrally incorporated within a vulcanized tire and to further provide unique identifier(s) and/or other information about the vulcanized tire during and/or post-vulcanization, the RFID mesh label including a face layer configured to be positioned adjacent or flush to an outer surface of the vulcanized tire; an RFID layer positioned underneath the face layer, the RFID layer having an RFID device that is configured to provide unique identifier(s) and/or other information about the vulcanized tire upon being read with an RFID reader; and a mesh backing overlying the RFID layer and adapted to be integrally incorporated in a vulcanized tire after subjecting a green tire to a vulcanization process.

A mold (20) for vulcanizing tires comprises an upper part (24) and a lower part (26), the upper part and the lower part being able to move axially between an open position and a closed position in which the lower part and the upper part meet along a joint line (31). A mold part (24, 26) has at least one sipe blade (50), all or some of the sipe blades extending substantially axially or helically on the radially internal surface (30) of the mold, all or some of the sipe blades being: contiguous at one of their ends with a protruding element (46) and contiguous at the other of their ends with a recessed element (44) or with the other part of the mold, and able to move relative to the tire in the wake of the protruding element (46), during opening of the mold.

A tire mold comprises sector molds for forming a tread portion of a tire and mold pins provided on the sector molds for forming insertion holes in the tread portion. The insertion holes each comprise a first hole portion with a first inner diameter where a body portion of a stud pin is disposed and a second hole portion with a second inner diameter greater than the first inner diameter where a bottom flange portion of the stud pin is disposed. The mold pins each comprise a trunk portion with a first outer diameter for forming the first hole portion and a tip portion with a second outer diameter greater than the first outer diameter for forming the second hole portion.

Method for curing a tyre during which a green tyre is pressed against the lining of a curing mould provided with a venting device, the moulding surface of said lining forming protrusions that define cavities, the venting device comprising vents that pass through the lining, one cavity being divided into chambers by a protrusion in the form of a blade (26), each cavity closing on one or more vents, at least one of said chambers not closing on a vent, at least one duct (42) passing through the blade (26) so that the chamber(s) that does/do not close on a vent communicate(s) through the duct with a chamber that does close on a vent.

According to the invention, the cross-section of the duct (42) has an area of between 0.0001 mm.sup.2 and 0.25 mm.sup.2 and, more preferably, 0.01 mm.sup.2 and 0.1 mm.sup.2.