Abstract: In a first aspect of the invention, a pneumatic tire is provided, the pneumatic tire comprising two spaced apart beads, a tread portion, a pair of sidewalls extending radially inward from axially outer edges of the tread portion to join the respective beads, the axially outer edges of the tread portion defining a tread width, a carcass, an innerliner covering the carcass and enclosing a tire cavity when mounted on a rim, and multiple layers of open cell, noise damping foam strip material attached on top of each other to the innerliner within the tire cavity in an area radially below the tread portion, wherein each layer has an axial width from 20% to 80% of the tread width and a radial thickness from 5% to 20% of the tread width and said multiple layers fill together from 8% to 40% of the volume of the tire cavity.

Abstract: Tyre (1) comprising a monitoring device (10) comprising an electronic unit (11) comprising a sensor for detecting at least one of the following physical quantities: temperature, pressure, acceleration, deformation; a processing unit; a transceiver; an electric power supplier (12) having a housing body (50), a first pole (22) and a second pole (24); an electric circuit (18) for connecting the two poles (22, 24) to the electronic unit (11); a flexible support (13) on which the electronic unit is fixed (11), wherein the housing body (50) is fixed onto the flexible support (13) at a first face (23), wherein the monitoring device (10) comprises a tab (26) integral with the flexible support (13) and folded so that a portion (27) of the tab is fixed to a second face (25) of the housing body (50), and wherein the electric circuit (18) comprises a connecting track (28) extending along the tab (26) up to electrically contact the second pole (24).

Abstract: Tyre for vehicle wheels, comprising a tread band comprising circumferential grooves, circumferential ribs defined by said circumferential grooves and a plurality of sipes (10) that extend, on said circumferential ribs, from a radially outer surface of the tread band towards a radially inner portion of the tread band. Said sipes (10) extend along a predetermined trajectory and comprise, in any cross section perpendicular to said predetermined trajectory, a main portion (100) having a first radial dimension (H?) and a first transversal dimension (T, T?) substantially constant along a radial direction and, in a radially outer position with respect to said main portion (100), a top portion (110) extending up to said radially outer surface of the tread band and having, at said radially outer surface of the tread band, a second transversal dimension (W) greater than said first transversal dimension (T, T?).

Abstract: A tread (12) for a tire (10) which has a tread surface intended to contact a road surface during running. The tread (12) has at least one cavity opening onto the tread surface when new, called external cavity (14), which has length L, width W and central plane P. The external cavity (14) has bottom (16) and at least two opposite lateral walls (18a, 18b) extending from bottom (16) and a mechanism (20) for ejecting stones during running, which has two protuberances (22a, 22b) from bottom (16) of external cavity, which are disposed at least partially opposite one another at a distance d. Each protuberance (22a, 22b) is inclined respectively from a lateral wall (18a, 18b) of the external cavity (14) towards the central plane P. The distance d between the two protuberances (22a, 22b) is less than or equal to 10% of width W of external cavity (14).

Abstract: In a pneumatic tire, a block includes recess/protrusions on a road contact surface. Additionally, a recess/protrusion height of the recess/protrusions is from 0.1 mm to 1.0 mm. A width of the recess/protrusions is from 0.1 mm to 0.8 mm. A recess/protrusion region is where an arrangement interval between adjacent recess/protrusions is not greater than 1.2 mm. A smooth region other than the recess/protrusion region has an arithmetic mean roughness of the road contact surface of the block not greater than 50 ?m. A lateral length of the road contact surface of the block in a tire lateral direction is defined. In this case, the block includes the recess/protrusion region and the smooth region in an optional cross-section in a lateral range of not less than 40% of a lateral length of the road contact surface of the block.

Abstract: A tire includes a pair of beads and a crown region including a circumferential tread disposed radially above a circumferential belt. The tire further includes a pair sidewalls extending from the pair of beads to the crown region. A body ply wraps around the pair of beads and terminates in a pair of turn up ends in the crown region, below the middle 30% of the circumferential belt. A conductive substance is disposed along a strip of the body ply.

Abstract: A tire includes a tread portion including first and second tread edges, a first shoulder land portion including the first tread edge, and a first shoulder circumferential groove located inwardly in a tire axial direction of and adjacent to the first shoulder land portion and extending continuously in a tire circumferential direction. The first shoulder land portion is provided with a plurality of first shoulder lateral grooves extending from the first shoulder circumferential groove across the first tread edge, each of the plurality of first shoulder lateral grooves has a pair of first groove walls, and the pair of first groove walls is provided with a pair of first chamfer portions that extends from the first shoulder circumferential groove to a first location beyond the first tread edge.

Abstract: In a pneumatic tire, a tread comprises a plurality of main grooves including a first main groove that extends in straight fashion in a tire circumferential direction, and at least one first recess that is recessed toward a first side in a tire axial direction from the first main groove and that is arranged at a portion in the tire circumferential direction of the first main groove, and the at least one first recess comprises a first recess side face that is planar and that extends toward an interior in a tire radial direction from the tread surface, and a first recess bottom that is planar and that extends toward the first side in the tire axial direction from the first main groove so as to intersect the first recess side face.

Abstract: A tire includes a surface geometry arrangement on a surface of a sidewall portion. The surface geometry arrangement includes a ridge pair in which two ridges bend so as to intersect each other a multiple number of times.

Abstract: The tire includes a tread portion having circumferential grooves extending in a tire circumferential direction and land regions demarcated by the circumferential grooves. The circumferential grooves include a first circumferential groove and a second circumferential groove adjacent to the first circumferential groove and having a width larger than the first circumferential groove. The land regions include a first land region demarcated between the first circumferential groove and the second circumferential groove. The first land region has lateral grooves extending in a tire axial direction and lateral sipes extending in the tire axial direction and each having a width smaller than that of each of the lateral grooves. A total value of the widths of the lateral grooves and the lateral sipes connected to the second circumferential grooves is smaller than a total value of the widths of the lateral grooves and the lateral sipes connected to the first circumferential grooves.

Abstract: A tire includes a tread portion including a first land portion, the first land portion being provided with a plurality of first sipes. The plurality of first sipes extends in an arc shape manner. The plurality of first sipes is arranged on the first land portion without communicating with lateral grooves extending in a tire axial direction. In a tread plan view, a virtual sipe reference line of each of the plurality of first sipes has an angle equal to or less than 10 degrees with respect to a tire circumferential direction, wherein the virtual sipe reference line is a straight line that connects both ends of each of the plurality of first sipes.

Abstract: A radial tire (1) for a heavy-duty vehicle of construction plant type, and to reduce the risk of tire tread separation when running over sharp stones, while at the same time ensuring that the crown reinforcement exhibits good resistance to cracking. The tire (1) has a protective reinforcement (50) having three protective layers (51, 52, 53), comprising metal reinforcers that respectively have a diameter (D1, D2, D3) and are distributed at an axial spacing (P1, P2, P3). According to the invention, with Alpha1, Alpha2 and Alpha3 being the angles of the reinforcers of the respective layers (51, 52, 53) with the circumferential direction, the following relationships are satisfied: 15°?|Alpha1|?40° 15°?|Alpha2|?40° Alpha1*Alpha2?0 35°?|Alpha3|?75° As regards the differences between the angles of the reinforcers of the protective layers, the following relationship in terms of absolute values applies: |(Alpha1?Alpha3)|?10° |(Alpha2?Alpha3)|?10°.

Abstract: A tire includes a tread portion including four circumferential grooves extending continuously in the tire circumferential direction and five land portions divided by the four circumferential grooves. The five land portions include a first middle land portion located between a first tread edge and a tire equator. The first middle land portion is provided with first middle sipes inclined with respect to a tire axial direction and fully traversing the first middle land portion in the tire axial direction. Each first middle sipe includes a pair of sipe edges, and at least one of the pair of sipe edges opens at the ground contact surface via a chamfer portion over an entire length thereof. The chamfer portion has a chamfer width increasing continuously from a first longitudinal edge to a second longitudinal edge of the first middle land portion.

Abstract: Provided is a pneumatic tire. Center blocks provided in a center region of a tread portion are arrayed and form pairs across inclined grooves that are inclined with respect to a tire circumferential direction. Each one of the center blocks extends across a tire equator from one side to the other side of the tire equator. Each one of the center block includes a cut formed of a first wall and a second wall connected in a V-shape in a tread surface. The first wall extends at an angle within ±20° with respect to the tire circumferential direction in the tread surface, and the second wall extends at an angle within ±10° with respect to a tire lateral direction. Each one of wall surface angles of the first wall and the second wall is larger than a wall surface angle of a wall surface provided with the cut.

Abstract: Tread for heavy-duty vehicle tire, having tread surface in the new state, having a first volume of cavities opening onto the tread surface, a second volume of cavities formed entirely under the tread surface and having at least one channel of height Hc delimited by two main walls spaced apart from one another by a width Lc and connected together by a lower part and by an upper part, this channel intended to form, after partial wear corresponding to a thickness Lu, an additional groove, such that each channel has a plurality of extensions forming cavities extending between this channel and the tread surface over a height He at least equal to 20% and at most equal to 75% of the thickness Lu, each extension opening at least into the upper part of the channel through an opening having a cross-sectional area Sa at least equal to 0.8*(Hc*Lc).

Abstract: A tire has a tread portion provided with three or four circumferential grooves including a shoulder circumferential groove to form a shoulder land region and a middle land region. The middle land region is provided with a middle circumferential sipe and middle lateral sipes. The shoulder land region is provided with shoulder lateral grooves extending from the shoulder circumferential groove to a tread edge, and shoulder lateral sipes extending from the shoulder circumferential groove and terminated without reaching the tread edge.

Abstract: A tire that can achieve both desired visibility and design properties of a mark provided on a sidewall portion is provided. A tire has a mark provided on a surface of a sidewall portion so as to be raised from the surface. The mark includes a curved surface portion curved so as to project in a direction substantially perpendicular to the surface of the sidewall portion, and a flat surface portion provided on at least one side in a tire circumferential direction of the curved surface portion, and a raised height h of the flat surface portion from the surface gradually decreases with increasing distance in the tire circumferential direction from the curved surface portion.

Abstract: Tyre (100) for all-terrain vehicles having a tread band (2) comprising: —a central annular portion (A1), located across the equatorial plane (X-X), and two shoulder annular portions (A2, A3), separated from said central annular portion (A1) by two circumferential grooves (3, 4); said central annular portion (A1) having at least one circumferential row (8) of central blocks, comprising a plurality of central blocks (20), and at least two rows (9, 10) of lateral blocks, opposed to each other relative to said at least one circumferential row (8) of central blocks, and comprising a plurality of lateral blocks (21), wherein —said central blocks (20) have a first and a second portion (20a; 20b) located opposite to each other relative to the equatorial plane (X-X); —said central blocks (20) and said lateral blocks (21) have a circumferential dimension greater than 2% of the development extension of the tread of the tyre; —said lateral blocks (21) have an elongate portion (13) and a head portion (14) located at an en

Abstract: Provided is a pneumatic tire. Side blocks are provided at extension positions of shoulder blocks on an inner side in a tire lateral direction, and each of the side block is formed into an L-shape in which a radial portion extending in a tire radial direction and a circumferential portion extending in a tire circumferential direction are coupled in a hook portion. Of the side blocks, first blocks having the circumferential portions oriented to the shoulder block side and second blocks having the radial portions oriented to the shoulder block side form pairs by facing each other so that the circumferential portions of the first blocks and the second blocks overlap with each other. The side block pairs formed of the first blocks and the second blocks are arrayed in the tire circumferential direction.

Abstract: Agricultural vehicle tire having tread (1) with bearing surface (10) on which main lugs (3) and shorter secondary lugs (3) are formed on each side of the equatorial mid-plane (XX?), each secondary lug (3) interposed between two main lugs (2). The main lugs (2) and secondary lugs (3) make up, in the radial direction, a lens (21, 31) of a first material, each lens (21, 31) surmounted by a second material extending to the contact face of the main lugs and the secondary lugs. The viscous modulus G?1 of the first material is at most 60% of the viscous modulus G?2 of the second material. The complex modulus G?1 of the first material differs from the complex modulus G?2 of the second material, the difference between these complex moduli being at most 30% of the complex modulus G?2 of the second material.