Abstract: A tread pattern of a pneumatic tire includes continuous lands provided in half treads on first and second sides, circumferential main grooves, and sipes having a chamfered configuration. The sipes extend inward in a lateral direction from the circumferential main grooves and are closed in the middle of regions of the continuous lands. An edge shape of each of sipes on the first side includes an extending portion extending inward in the lateral direction constantly in an extension direction and a bent portion that is provided to be joined to an end of the first extending portion and that has the edge shape bent from the extension direction of the first extending portion to a direction close to the circumferential direction. Every portion of the first extending portion and the bent portion of the sipes are provided with a main body portion and a sipe chamfered portion.

Abstract: A pneumatic tire includes block rows which are arranged in a tire width direction and each of which includes a plurality of blocks defined by main grooves extending in a tire circumferential direction and lateral grooves extending in a tire width direction. The plurality of block rows includes inner block rows which are the block rows other than an outermost block row located most outwardly in the tire width direction. Numbers of the blocks included in the inner block rows increase toward an inner side in the tire width direction. The blocks in each of the inner block rows include an auxiliary-grooves-formed block having, on an outer surface thereof, an auxiliary groove region in which a plurality of drain auxiliary grooves extending in the tire circumferential direction are formed. Occupied areas in each of the inner block rows decrease toward the inner side in the tire width direction.

Abstract: The process for producing tyres comprises arranging no more than four sets of noise-reducing elements, each set being associated with a respective dimension Lx different from each other; feeding in succession a set of tyres for vehicle wheels, having different values C of the inner circumferential extension; for each inner circumferential extension value, determining a respective number nx of noise-reducing elements for each set of noise-reducing elements, with x ranging from 1 to N, wherein for at least one value of the inner circumferential extension at least two respective numbers nx differ from 0; for each tyre, collecting from each set of noise-reducing elements the respective number nx of noise-reducing elements and applying the collected noise-reducing elements in circumferential sequence along an inner surface of the tyre, with dimension Lx oriented circumferentially.

Abstract: A pneumatic tyre comprising an inner surface of the tyre, wherein a sound absorbing device component is connected to the inner surface of the tyre. The sound absorbing device component comprises a panel with a plurality of perforations and two sidewall sections, the sidewall sections being distinct from the panel, wherein the sidewall sections are connected to the inner surface of the tyre and arranged opposite of each other and wherein the panel is borne by the sidewall sections, thereby positioning the panel at a distance from the inner surface of the tyre and defining an inner volume enclosed by the panel, the sidewall sections and the inner surface. Furthermore, ?95 area-% of all perforations which permit access to the inner volume are located on the panel.

Abstract: A method for manufacturing a tire (1) equipped with a communication module (20) consists in successively, and in the order required by the architecture of said tire, laying rubber products, notably profiled elements (50) and reinforcing elements on a given support in order to yield a green tire (1), then in vulcanizing the green tire to yield a tire (1), wherein, prior to laying one of the rubber profiled elements (50) on the green tire, a slot (52) is created starting from a surface of the rubber profiled element (50) and the communication module (20) is introduced into the slot (52).

Abstract: The invention discloses a tire building device and a tire building method. The tire building device includes a lateral-longitudinal-orthogonal 1 rail unit, a transferring ring, a carcass application unit, a bead placement unit, a belt application unit, a building unit, a shaping unit, and a tire unloading mechanism; the lateral and longitudinal orthogonal rail unit divides the tire building device into four areas, and also establishes the connection between the units through the transferring ring. The tire building method, including: 1) adhere the bead and tire carcass compound and then sent to the building unit; 2) send the belt compound to the building unit, 3) compound the carcass compound and belt compound into a carcass and sent to the shaping unit; 4) wind the carcass around the tread to form a green tire and sends it to the tire unloading mechanism for disassembly.

Abstract: Provided is a tire including: a decorative portion that is formed on an outer surface of the tire and has a base surface; and a pattern region that is provided at the decorative portion and includes plural projections projecting from the base surface and formed at an interval of from more than 0.1 mm to 1.0 mm, the plural projections having a height of from 0.1 mm to 1.0 mm, in which at least in the pattern region, the plurality of projections is inclined in one direction with respect to a normal line perpendicular to the base surface.

Abstract: A tire includes a block 30. The block 30 includes a land 36b, a transverse groove 48b, a longitudinal groove 50b, and a side surface 38b. The land 36b is flat. The transverse groove 48b is recessed from the land 36b. The transverse groove 48b has inner and outer ends 52 and 54 in an axial direction of the tire. The inner end 52 of the transverse groove 48b is open on the side surface 38b. The outer end 54 of the transverse groove 48b is not open on the side surface 38b. The transverse groove 48b is localized in the inner region of the block 30 in the axial direction.

Abstract: A pneumatic tire has a large number of protector ribs on a side surface thereof. Each protector rib projects from a profile of the tire. The protector rib has an outer end and an inner end. A shape of a cross-section of the outer end is convex inward in an axial direction. The shape of the cross-section of the outer end is preferably a circular arc. A shape of a cross-section of the inner end is convex inward in the axial direction. The shape of the cross-section of the inner end is preferably a circular arc. The tire further has a lateral groove. An intersection angle of an axially outer end of this lateral groove relative to the profile is not less than 100° and not greater than 140°.

Abstract: A radial pneumatic tire for a heavy-duty civil engineering vehicle aims to reduce the risk of tread separation of the pneumatic tire, during driving on sharp rocks, while ensuring good resistance to cracking of the crown reinforcement. The pneumatic tire has a protective reinforcement with two protective layers, the radially innermost protective layer having elastic metal reinforcements with a diameter D1 which are axially distributed according to an axial pitch P1, and the radially outermost protective layer has elastic metal reinforcements with a diameter D2 which are axially distributed according to an axial pitch P2. In the tire the following relations are satisfied: D1>D2 P1>P2 P1>=1.2*D1 and P2>=1.2*D2 2.5<=(D1*P1)/(D2*P2)<=5.

Abstract: In a pneumatic tire, an inner second land portion includes chamfered portions and lug grooves. The chamfered portions are on an edge portion on a tire ground contact edge side of the inner second land portion and widen chamfer widths on a road contact surface of the inner second land portion in a tire circumferential direction. The lug grooves terminate in the inner second land portion at one end portion and open to central portions in a longitudinal direction of the chamfered portions at another end portion. An outer second land portion and an outer shoulder land portion include closed lug grooves terminating in the outer second land portion at one end portion. The closed lug grooves extend in the tire width direction and penetrate a circumferential narrow groove. The closed lug grooves terminate in a ground contact surface of the outer shoulder land portion at another end portion.

Abstract: In a pneumatic tire, a plurality of side blocks include a first side block which is contiguous with the exterior in a tire axial direction of a first tread block, and a second side block which is contiguous with the exterior in the tire axial direction of a second tread block; the first side block comprises a first apical surface which is arranged at an outer end of the first side block in the tire axial direction; the second side block comprises a second apical surface which is arranged at an outer end of the second side block in the tire axial direction, and area of the second apical surface is greater than area of the first apical surface.

Abstract: A tire comprises a tread portion whose shoulder land part is provided with a narrow circumferential groove having an axially inner wall surface, an axially outer wall surface and a groove bottom including a deepest point. The axially inner wall surface has a radially inner curved portion concaved toward the axially inside, and the axially outer wall surface has a radially inner curved portion concaved toward the axially outside. the radially outer end of the radially inner curved portion of the axially inner wall surface is positioned radially inside the radially outer end of the radially inner curved portion of the axially outer wall surface.

Abstract: A pneumatic tire comprises a sidewall portion of which outer surface is provided with a decorative portion extending in the tire circumferential direction in an arc shape. The decorative portion is formed from a first pattern area and a second pattern area having different surface aspects. When the decorative portion is divided into a number N of decorative zones (N>2) by equally-spaced parallel straight lines which are perpendicular to a reference center line extending in a tire radial direction, percentages of occupied area of the first pattern area in the respective decorative zones are gradually increased from the radially innermost decorative zone to the radially outermost decorative zone.

Abstract: A pneumatic tire is provided. Side regions located outward of shoulder regions of a tread portion in a tire lateral direction are each provided with a pair of side blocks opposite each other across a side groove extending in the tire lateral direction, iteration elements each including the side groove and the pair of side blocks are arranged at an interval in a tire circumferential direction. A road contact surface of each of the side blocks has a recess/protrusion shape including a reference surface located on a side closer to the side groove and a step portion located on a side farther from the side groove and raised from the reference surface. The side groove includes a raised bottom portion raised from a groove bottom and coupling the pair of side blocks.

Abstract: A tire includes a pair of shoulder land regions each provided with a plurality of wavy sipes and first shoulder lateral grooves each having a groove width of 2 mm or less and larger than a width of each of the wavy sipes. The tire further includes a pair of middle land regions and a crown land region each provided with a plurality of non-wavy sipes.

Abstract: A tyre for a motorcycle includes a tread portion. The tread portion includes a crown longitudinal groove extending in a tyre circumferential direction on a side of a tyre equator, a shoulder longitudinal groove extending in the tyre circumferential direction on a side of a first tread edge, and a middle groove arranged between the crown longitudinal groove and the shoulder longitudinal groove. The middle groove includes a plurality of middle main groove portions arranged in the tyre circumferential direction and each protruding toward the tyre equator or the first tread edge. Each of the middle main groove portions is formed in a bent line shape or in an arc shape. Each of the middle main groove portions includes a shallow bottom portion having a groove depth smaller than a maximum groove depth of the shoulder longitudinal groove and a maximum groove depth of the crown longitudinal groove.

Abstract: At least one mark formed by a character or a figure and a surface geometry arrangement region disposed adjacent to the mark outside the mark can be formed on a surface of a sidewall portion of a tire. The surface geometry arrangement region can have a plurality of micro projections. The surface geometry arrangement region can include a first region formed in at least a part of the surface geometry arrangement region such that the greater a distance from the mark is, the less a height of the micro projection can be.

Abstract: A tire has a block pattern. The block pattern includes a plurality of linked block pairs. Each linked block pair includes two blocks 28 and a tie bar 30 interposed between the two blocks 28 and linking the two blocks 28 together. The tie bar 30 has a toe end 40 having a height equal to or smaller than a height of the blocks 28 and a heel end 38 having a height smaller than the height of the toe end 40.

Abstract: Tire comprising at least one working layer (41). The radially outermost one thereof comprises at least one undulation (412) radially on the outside of the points of the working layer (41) that are in line with the centre of the bottom face (243) of the major groove (24) closest to undulation (412). The undulation (412) of the radially outermost working layer (41) is such that, over at least 10% of the radially outer surface (ROS) of the said working layer (41), the radial distance (do) between the radially outer surface (ROS) and the tread surface (21) is at least 1 mm less than the radial distance (dc) between the radially outer surface (ROS) and the tread surface (21), which is the distance in line with the centre of the bottom face (243) of the major groove (24) closest to the said undulation (412).