A tire repairing apparatus includes: a tire support portion rotatably supporting a pneumatic tire; and an application mechanism configured to apply an additive that has a softening effect, to a tread portion of the pneumatic tire supported by the tire support portion, thereby causing the additive to permeate into the tread portion

A tire tread includes a silica bar extending in a tire circumferential direction. An upper part of the silica bar is exposed to a cap tread so as to contact the road. The tire tread improves grip performance on wet roads, thereby offering a tire suitable for high-speed driving.

This invention discloses a tire having enhanced wet traction and ice traction characteristics. These tires are comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, wherein the tread includes at least one circumferential groove which separates circumferential ribs, each circumferential groove having two sides and a base therebetween, and wherein the sides of each circumferential groove are comprised of a rubbery composition that includes silicate microflakes which are substantially aligned in an orientation which is parallel with the sides of the grooves.

This invention discloses a tire having enhanced wet traction and ice traction characteristics. These tires are comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, wherein the tread includes at least one circumferential groove which separates circumferential ribs, each circumferential groove having two sides and a base therebetween, and wherein the sides of each circumferential groove are comprised of a rubbery composition that includes silicate microflakes which are substantially aligned in an orientation which is parallel with the sides of the grooves.

This invention discloses a tire having enhanced wet traction and ice traction characteristics. These tires are comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads, wherein said tread is adapted to be ground-contacting, wherein the tread includes at least one circumferential groove which separates circumferential ribs, each circumferential groove having two sides and a base therebetween, and wherein the sides of each circumferential groove are comprised of a rubbery composition that includes silicate microflakes which are substantially aligned in an orientation which is parallel with the sides of the grooves.

Method of manufacturing a tire tread having a plurality of raised elements, each having a contact face intended to come into contact with a ground when the tire is rolling and lateral faces connected to this contact face. The method of manufacture comprises: preparing a green form of the tire; laying a cover layer over all or part of an external surface of the green tire; laying the green tire in a mold; with the mold comprising a blade, using this blade to mold a lateral face of a raised element; vulcanizing the green tire to obtain the tire cutting the cover layer using cutting means belonging to the mold; during the molding of the lateral face driving with the blade a cut part of the cover layer into the green tire so that the lateral face of the raised element is partially or fully covered.

A mould for manufacturing a tire includes a plurality of segments including a first segment. The first segment has a first end, an opposite second end, primary lamella blades that are arranged close to the first end, and secondary lamella blades that are arranged far from both the ends. An average of the heights of the primary lamella blades is at least 75% of an average of the heights of the secondary lamella blades. A bending strength of the primary lamella blades against bending in a circumferential direction of the mould is greater than a bending strength of the secondary lamella blades against bending in the circumferential direction of the mould. A tire is manufactured by the mould.