Abstract: A pneumatic tire includes the plurality of sipes, when, with regard to each sipe in which the shoulder-side end portion is located closest to a center side among the plurality of sipes, a position of the shoulder-side end portion of the sipe in the tire width direction is taken as a first reference position, and with regard to each sipe in which the center-side end portion is located closest to a shoulder side among the plurality of sipes, a position of the center-side end portion of the sipe in the tire width direction is taken as a second reference position, the plurality of sipes are arranged at regular intervals in the tire circumferential direction, and at other of the first reference position and the second reference position, the plurality of sipes are arranged at irregular intervals in the tire circumferential direction.

Abstract: A tyre has a tread portion having a tread ground contacting surface and a main groove having a bottom surface and two groove wall surfaces extending outwardly in a tyre radial direction from the bottom surface. In a lateral cross section perpendicular to a length direction, at least one groove wall surface has an inner groove wall portion connected with the bottom surface and a protruding portion connected with the inner groove wall portion and having a protruding end protruding inwardly in a groove width direction from a groove reference line obtained by extending the inner groove wall portion. The protruding portion has an inclined surface portion extends obliquely between the protruding end and the tread ground contacting surface. When the tread portion in a reference state is loaded with a tyre load of 1.20 times a standard tyre load, the whole inclined surface portion contacts a flat surface.

Abstract: A pneumatic tire is provided with an electrically conductive portion at least extending continuously from a bead portion to a belt layer. The electrically conductive portion has a linear structure. The linear structure includes an electrically conductive linear member linearly formed of electrically conductive material with an electrical line resistivity of less than 1×10{circumflex over (?)}8 ?/cm. The electrically conductive portion ensures an electrically conductive path from the bead portion to the belt layer.

Abstract: A pneumatic tire in which a plurality of sipes 20 are formed in land sections of a tread and at least one of end parts in an extending direction of each sipe 20 is an end part 21 in the land section that is blocked in the land section, in which holes 22 separated from the sipes 20 are formed on line segments L connecting the end parts 21 in the land section of adjacent two sipes 20 to each other, and the hole 22 has a circular shape or an elliptical shape in plan view, a diameter of which becomes smaller as coming toward a deeper position.

Abstract: A tyre includes a tread portion having an outer shoulder main groove, a crown main groove, and an outer middle land region defined between the outer shoulder main groove and the crown main groove. The outer middle land region is provided with first middle sipes each extending inwardly in a tyre axial direction from the outer shoulder main groove to have an inner end in the outer middle land region and second middle sipes each extending outwardly in the tyre axial direction from the crown main groove to have an outer end in the outer middle land region. The number of the second middle sipes is larger than the number of the first middle sipes.

Abstract: A motorcycle tyre for traveling on rough terrain, the tyre includes a tread portion provided with blocks. The at least one of the blocks includes a ground contact surface having a pair of lateral edges extending in a tyre axial direction. The at least one of the blocks is provided with a pair of lateral narrow grooves extending in the tyre axial direction on the ground contact surface to form a pair of edge-side portions defined between the pair of lateral narrow grooves and the pair of lateral edges. The at least one of the pair of edge-side portions includes a neck portion having a minimum circumferential length thereof, wherein a circumferential length of the at least one of the pair of edge-side portions increases toward axially both sides from the neck portion.

Abstract: Tire (1) comprising a directional tread (2) comprising a plurality of blocks (5) extending continuously along an overall curvature C from one of the edges (3) towards the centre (4) of said tread, all or some of the blocks (5) of the tread comprising a median sipe (10) of length S extending along a curvature C? substantially identical to the curvature C of the block, each block (5) comprising a central zone at an angle ?1 such that 35°??1?65°, an edge zone at an angle ?3 such that 0°??3?10°, and an intermediate zone between the central zone and the edge zone at an angle ?2 allowing continuity between the three zones, at least some of the blocks (5) being designed with a block chamfer (15) provided at the trailing edge in the intermediate zone and/or the edge zone.

Abstract: A tire comprising a tread, this tread comprising at least one channel and at least one wear indicator that is disposed on the bottom of the channel. The wear indicator has a contact face which is intended to come into contact with a road surface when the tire reaches a wear limit. The contact face has a texture that contrasts with the bottom of the channel.

Abstract: A tyre includes a tread portion including an outboard middle land portion disposed between an outboard tread edge and a tyre equator. The outboard middle land portion includes first and second longitudinal edges, outboard middle lateral grooves extending from the first longitudinal edge and having terminal ends within the outboard middle land portion, first outboard middle sipes extending from the respective terminal ends of the outboard middle lateral grooves to the second longitudinal edge, and second outboard middle sipes extending from the first longitudinal edge toward the second longitudinal edge beyond the terminal ends of the outboard middle lateral grooves and terminating within the outboard middle land portion. The outboard middle land portion is not provided with any lateral grooves that extend from the second longitudinal edge toward the first longitudinal edge to reach an axial center location of the outboard middle land portion.

Abstract: A tire having a tread portion. The tread portion includes a first shoulder land portion that is defined between a first shoulder main groove and a first tread end. The first shoulder land portion includes: a shoulder lateral groove that extends from the first tread end and ends in the first shoulder land portion; a first sipe that extends from an end of the shoulder lateral groove to the first shoulder main groove; and a second sipe that extends from the first tread end toward the first shoulder main groove, and ends in the first shoulder land portion. A length of the shoulder lateral groove in a tire axial direction is 0.10 to 0.30 times a width of the first shoulder land portion in the tire axial direction.

Abstract: A tire (1) comprising a tread (8), this tread comprising at least one channel (2), at least one wear indicator (3) disposed on the bottom of the channel (2), the wear indicator comprising a contact face (7) intended to come into contact with a road surface when the tire reaches a wear limit, the channel (2) comprising a texture (4) surrounding the wear indicator (3) and contrasting with the contact face (7) of the wear indicator.

Abstract: In a pneumatic tire on a rim with 5° taper, a bead core includes a bead core bottom inclined 0° to 5° with respect to a rotation axis in a direction in which the bead core bottom extends outward in a radial direction from an inner side toward an outer side in the lateral direction, a bead portion includes a bead base portion inclined 8° to 12° with respect to the rotation axis in a direction in which the bead base portion extends outward in the radial direction from the inner side toward the outer side in the lateral direction. A bead width BW is a distance between tire inner and outer surfaces on a straight line through a bead core center in the meridian cross-section and parallel to the bead base portion. The bead core has a maximum width CW within a range of (BW×0.54)?CW?(BW×0.58).

Abstract: A heavy-duty pneumatic tire includes a section width being equal to or less than 335 mm, an aspect ratio being equal to or less than 55%, and a toroidal carcass extending between axially spaced bead portions through a tread portion and sidewall portions. The carcass includes a carcass ply which includes a main portion and a turn-up portion turned up around a bead core of each bead portion. A belt layer is disposed radially outward of the carcass in the tread portion, wherein a radially outer end of the turn-up portion is located between the main portion and the belt layer in the tread portion. A sheeted rubber layer is disposed between the main portion and the turn-up portions in each sidewall portion.

Abstract: A pneumatic tire includes first and second main grooves, and first sipes and auxiliary grooves on second land portions between the first and second main grooves, the auxiliary grooves opening to the second main grooves and terminating in the second land portions. The auxiliary grooves bend at a bend point and include a first portion extending from an opening end to the bend point, and a second portion extending from the bend point to a terminating end. A groove width of the first portion gradually reduces from the opening end to the bend point. Second sipes have an end that opens to each of the second main grooves and another end that opens to each of the terminating ends. Third sipes have an end that opens to the first main grooves and another end that opens to the first portions. The sipes are parallel to each other.

Abstract: Provided is a pneumatic tire that can be obtained without requiring complicated design and has improved noise performance. On the inner vehicle-mounting side, the circumferential pitch length of the tire has pitch variation comprising at least three pitch lengths and, if the number of pitches is n and the pitch lengths (Pi) are Pi1, Pi2, Pi3, . . . , Pin, in order from the greatest pitch length, the pitch lengths satisfy the relationships Pi1/Pi2?Pi2/Pi3? . . . ?Pin?1/Pin, and Pi1/Pi2.

Abstract: A pneumatic tyre includes a tread portion, and a pair of buttress portions each extending inwardly in a tyre radial direction from a respective one of tread edges. At least one of the pair of buttress portions is provided with side protectors protruding outwardly in a tyre axial direction. The side protectors include first protectors arranged in a tyre circumferential direction. Each first protector includes a lateral V-shaped portion including a first inclined element inclined with respect to the tyre circumferential direction and a second inclined element inclined in an opposite direction to the first inclined element with respect to the tyre circumferential direction and connected to the first inclined element.

Abstract: A pneumatic tire includes first and second pairs of main grooves extending in the tire circumferential direction; and auxiliary grooves disposed in land portions located between the first and second main grooves which open to the corresponding first main groove or the corresponding second main groove and terminate within the corresponding land portion. Each of the auxiliary grooves includes a first auxiliary groove that extends from the opening portion to the bent portion and a second auxiliary groove that extends from the bent portion to the terminating end. A length a of the first auxiliary groove and a length b of the second auxiliary groove have the relationship 0.3a<b<0.8a. The angle ? made by the first auxiliary groove and the second auxiliary groove at the bent portion is in the range 0°<?<90°.

Abstract: A tire includes an electronic device, such as a RFID chip, within the body of the tire. For particular embodiments, a RFID chip is disposed within a tire belt. The RFID chip may be disposed on an inner or outer belt. The RFID chip is connected to at least one steel cords forming an antenna for the RFID chip. The steel cords are disposed at a first angle and second angle with respect to the tire equator. A method of joining the RFID chip to a tire cord is also provided.

Abstract: In a pneumatic tire, a sponge member extending in a tire circumferential direction is attached around an entire circumference of a tire inner peripheral surface of a tread portion. The sponge member includes at least: a first sponge layer; a second sponge layer laminated inward of the first sponge layer in a tire radial direction; and a third sponge layer laminated inward of the second sponge layer in the tire radial direction. Each of the first sponge layer and the third sponge layer has a smaller expansion ratio than an expansion ratio of the second sponge layer.

Abstract: A pneumatic tire includes a tread portion being provided with blocks which are provided with sipes. When the tread portion is virtually divided into a crown area having a ¼ tread ground-contact width centered on a tire equator, a pair of middle areas each having a ? tread ground-contact width and being adjacent to axially each side of the crown area and a pair of inner shoulder areas each having a ? tread ground-contact width and being adjacent to axially outside the middle areas, the sipes comprise crown sipes having main portions included in the crown area, middle sipes having main portions included in the middle areas and shoulder sipes having main portions included in the inner shoulder areas. Depths of the crown sipes are smaller than depths of the middle sipes, and depths of the shoulder sipes are smaller than the depths of the middle sipes.