Abstract: A tire molding die includes sectors separated from one another in a tire circumferential direction, and sipe blades disposed on tread molding surfaces of the sectors, the sipe blades are disposed repeatedly in the tire circumferential direction in a repeating pattern corresponding to a predetermined arrangement pattern, and a near sipe blade that is included in sipe blades disposed in one of the sectors and that is a sipe blade closest to a division position between the sectors is more rigid than an original shape blade corresponding to the sipe blade provided in the repeating pattern differing from the repeating pattern including the near sipe blade at a position identical to a position of the near sipe blade in the repeating pattern including the near sipe blade.

Abstract: Provided is a pneumatic tire. In shoulder regions of a tread portion, as shoulder blocks, inner blocks and outer blocks, which have outer edges in a tire lateral direction at different positions on a tread contact surface, are alternately disposed in a tire circumferential direction. In shoulder grooves disposed between the inner blocks and outer blocks adjacent to each other in the tire circumferential direction, groove bottom protrusions, which extend from a laterally inner side to a laterally outer side in the tire lateral direction along the shoulder grooves over the positions of the outer edges of the inner blocks, are provided. Broad width portions having a relatively broad protrusion width of the groove bottom protrusions are disposed on a laterally outer side in the tire lateral direction with respect to the outer edges of the inner blocks in a front view.

Abstract: In a pneumatic tire including a carcass layer mounted between a pair of bead portions and a belt reinforcing layer disposed on an outer circumferential side of the carcass layer, the carcass layer is formed of a carcass cord made of an organic fiber cord, an elongation at break of the carcass cord is set to 20% or more, an elongation under a load of 1.5 cN/dtex of the carcass cord on the inner circumferential side of the belt layers is set to from 5.5% to 8.5%, the belt reinforcing layer is formed of a cover cord made of an organic fiber cord, and a tensile strength of the cover cord per width of 50 mm at a 3.0% elongation is set to from 2.8 kN to 4.0 kN.

Abstract: A pneumatic tire includes circumferential main grooves extending in the tire circumferential direction and arranged side by side in the tire width direction and a land portion defined by the circumferential main grooves. The land portion includes notch portions extending in the tire width direction and connected to the circumferential main grooves and shallow groove portions connected to the notch portions, respectively, and terminating in the land portion. The height of the notch portions decreases continuously toward the circumferential main grooves connected thereto.

Abstract: In a pneumatic tire including a carcass layer mounted between a pair of bead portions and a belt reinforcing layer disposed on an outer circumferential side of the carcass layer, the carcass layer is formed of a carcass cord made of an organic fiber cord, an elongation at break of the carcass cord is set to 20% or more, an elongation under a load of 1.5 cN/dtex of the carcass cord in sidewall portions is set to from 5.0% to 8.0%, the belt reinforcing layer is formed of a cover cord made of an organic fiber cord, and a tensile strength of the cover cord per width of 50 mm at a 3.0% elongation is set to from 2.8 kN to 4.0 kN.

Abstract: In a pneumatic tire, a two-dimensional code is provided on a surface of side rubber provided in a side portion. The two-dimensional code is formed of a dot pattern including two types of gray scale elements identifiably formed using surface irregularities. A two-dimensional code range in a tire radial direction in which the two-dimensional code is provided lies outward or inward of a bead filler rubber edge located outward of bead filler rubber in the tire radial direction.

Abstract: A pneumatic tire having dry grip performance, wet grip performance, low rolling resistance, and performance on snow, formed by: molding a rubber composition for a tire, the rubber composition containing: from 70 to 150 parts by mass of silica per 100 parts by mass of a diene rubber formed from two types of modified styrene butadiene rubbers and a butadiene rubber, and oil, and from 5 to 15 mass % of 3-octanoylthio-1-propyltriethoxysilane with respect to a mass of the silica, the diene rubber containing 75 mass % or greater and less than 100 mass % total of the two types of modified styrene butadiene rubbers and greater than 0 mass % and 25 mass % or less of the butadiene rubber, a total amount of oil component containing the oil being from 25 to 45 mass % of a total mass of filler containing the silica, and a glass transition temperature being ?50° C. or lower.

Abstract: The pneumatic tire includes a shoulder main groove and a center main groove disposed in one region demarcated by a tire equatorial plane and a shoulder land portion and a middle land portion defined by the shoulder main groove. The shoulder land portion is a rib that is continuous in a tire circumferential direction, and the middle land portion includes a plurality of middle lug grooves and a plurality of middle blocks defined by the plurality of middle lug grooves. When defining a section in the tire circumferential direction along an edge portion of one middle block close to the shoulder main groove, a groove width of the shoulder main groove continuously increases or decreases in the section.

Abstract: In a tire, a main groove has a bend where the groove wall angle relative to the tread surface normal line changes in a meridian cross-section. In first and second blocks adjacent in a width direction with the main groove therebetween, an angle between a line extended from a ridge line formed by a bend of a first block side groove wall and a line extended from a lug groove wall defining the first block is larger than an angle between a line extended from the ridge line formed by a bend of the second block side groove wall and a line extended from a lug groove wall defining the second block, and an angle of the first block side groove wall to the tread surface normal line is smaller than an angle of the second block side groove wall to the tread surface normal line.

Abstract: To provide a pneumatic tire that provides improved driving performance on unpaved roads and cut resistance. High blocks and low blocks with different raised heights are provided as side blocks provided in a side region. One of the high blocks and one of the low blocks adjacent to each other in a tire circumferential direction are defined as a block pair. The high block and the low block included in the block pair are partially in contact with each other. Thus, a side groove between these blocks is a closed groove. In each block pair, a pair of contour lines (a first linear portion, a second linear portion, and a third linear portion) define edges on both sides, in the tire circumferential direction, of a top surface of each of the high block and the low block.

Abstract: In a pneumatic tire, a bead filler is radially outward of a bead core, a carcass turned up end is radially inward of an outer side end of the bead filler, the turned up end is spaced from a carcass body, a reinforcement layer is laterally outward of the bead filler, a sidewall rubber extends from a sidewall to the bead, an inner rubber reinforcing layer is between the bead filler and the reinforcement layer and adjacent to the turned up end, a crack suppression layer is between the reinforcement layer and the sidewall rubber, the crack suppression layer extends 5 mm or more from where the crack suppression layer overlaps, the reinforcement layer contacts the carcass body radially outwardly of the bead filler, and a 100% modulus KcM100 of the crack suppression layer is at least 1.5 times that of the sidewall rubber.

Abstract: A pneumatic tire includes a circumferential main groove extending in a tire circumferential direction and a land portion defined by the circumferential main groove. The circumferential main groove includes a groove opening portion and a groove bottom portion each having a zigzag shape or a wave-like shape with an amplitude in a tire width direction. An outer maximum amplitude position of an outer edge portion in the groove opening portion is disposed to be offset in a tire circumferential direction with respect to an outer maximum amplitude position of an outer edge portion of the corresponding groove bottom portion.

Abstract: On a pneumatic tire, a sound absorbing member is installed on an inner surface of a tread portion via a surface fastener including a pair including a hook member and a loop member, the hook member including hook-shaped elements on one surface and being fixed to the tire inner surface, and the loop member being provided with loop-shaped elements engageable with the hook-shaped elements and being fixed to the sound absorbing member. In a meridian cross-section, the loop member has at least one section partially fixed in a tire width direction to the sound absorbing member. Given a fixed region in which the loop member is fixed to the sound absorbing member, and a non-fixed region in which the loop member is not fixed to the sound absorbing member, an engaging region in which the loop member and the hook member engage each other is on the non-fixed region.

Abstract: In a pneumatic tire, a sound absorptive member is installed on an inner surface of a tread portion with a sheet material interposed therebetween. The sheet material is fixed relative to the tire inner surface or the sound absorptive member at first fixed regions. The sheet material is not fixed relative to the tire inner surface or the sound absorptive member at a non-fixed region between the first fixed regions. The sheet material is fixed at a second fixed region relative to the other of the tire inner surface or the sound absorptive member ina portion of the non-fixed region. A repair liquid introducing portion connects a closed space and a tire cavity with the sheet material, the closed space being separated from the tire cavity by the tire inner surface and the non-fixed region or the sound absorptive member and the non-fixed region in a meridian cross-section.

Abstract: In a pneumatic tire, an intermediate land portion is provided with a plurality of lug grooves having acute bent portions and a plurality of sipes extending in a direction that intersects with the lug grooves. The lug grooves are disposed so as not to overlap one another in the tire circumferential direction, and each have one end that opens to an outer main groove and an other end that terminates in the intermediate land portion. When pitches, which serve as reference positions, are defined based on end points at which the lug grooves open to the outer main groove, the sipes each are disposed to be located inside one of the pitches, and the groove area ratio in the pitches in the intermediate land portion is in the range from 15% to 25%.

Abstract: A pneumatic tire includes a mounting direction indicator, an inner shoulder and center main grooves, inner shoulder and second lands, and a center land. The inner shoulder and center main grooves are formed inward in a vehicle width direction and extend in a circumferential direction. The inner shoulder and second lands and the center land are defined by the inner shoulder and center main grooves. The inner shoulder land includes a circumferential narrow groove, an inner shoulder lug groove, and an inner shoulder sipe. The circumferential narrow groove extends in the circumferential direction. The inner shoulder lug groove extends from a ground contact edge in a lateral direction, intersects with the circumferential narrow groove, and terminates in the inner shoulder land. The inner shoulder sipe extends from the inner shoulder main groove in the lateral direction, intersects with the circumferential narrow groove, and terminates in the inner shoulder land.

Abstract: A two-part curable adhesive composition includes a main agent (A) containing a urethane prepolymer (a1) and a remaining polyisocyanate (a2), and a curing agent (B) containing a non-crystalline polyol compound (b1) and a polyamine compound (b2). An equivalent ratio of an isocyanate group in a raw polyisocyanate to a hydroxyl group in a crystalline polyol compound constituting the urethane prepolymer (a1) is from 2.05 to 12. An NCO group/total active hydrogen group ratio is from 0.5 to 4. An isocyanate group/hydroxyl group ratio is from 2 to 12.

Abstract: Provided is a pneumatic tire including an indicator made of a protrusion portion or a recess portion extending in a tire circumferential direction is formed on a tire inner surface. A sound absorbing member or a sealant layer is applied to the tire inner surface along the indicator.

Abstract: A pneumatic tire includes first main grooves formed on outer sides, in the lateral direction, of a first land including an equatorial plane and extending in the circumferential direction; second main grooves outside, in the lateral direction, of the first main grooves and extending in the circumferential direction; auxiliary grooves formed on second lands between the first main grooves and the second main grooves, opening to the second main grooves, and terminating in the second lands; and first sipes inclined identically to the auxiliary grooves and crossing the second lands. The auxiliary grooves are formed into a shape bending 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.