Abstract: A pneumatic tire including a center block row 21 provided in a center area of a tread surface 1, wherein the center block row includes a plurality of center blocks 210 arranged along a tire circumferential direction, the plurality of center blocks includes a plurality of first center blocks 211 and a plurality of second center blocks 212, the plurality of first center blocks and the plurality of second center blocks have polygonal shapes on the tread surface, the polygonal shape formed by each second center block has a same number of sides as, but a different shape than, the polygonal shape formed by each first center block, each first center block and each second center block has one or more sipes, and a number n of sipes included in each second center block is greater than a number m of sipes included in each first center block.

Abstract: A first lateral groove and a second lateral groove are formed in a pneumatic tire. A first inclined portion is formed on one side of the first lateral groove in the tire circumferential direction, and a second inclined portion is formed on the other side of the second lateral groove in the tire circumferential direction. The first inclined portion is inclined from tire radial direction outside to tire radial direction inside by chamfering the end of one side circumferential block in the tire circumferential direction. The second inclined portion is inclined from tire radial direction outside to tire radial direction inside by chamfering the end of the other side circumferential block in the tire circumferential direction. The first inclined portion crosses the circumferential block and communicates with the circumferential groove. One end portion of the second inclined portion in the tire width direction terminates in the circumferential direction block.

Abstract: In a tire, a plurality of outer resonators (25) are formed in an outer land portion (28) partitioned by two outer main grooves (21, 22) and arranged in a tire circumferential direction, a plurality of inner resonators (26) are formed in an inner land portion (29) partitioned by two inner main grooves (23, 24) and arranged in the tire circumferential direction, the outer resonator includes a first vertical groove (31) which extend in the tire circumferential direction, and a first branch groove (32) and a second branch groove (33) which have an inner volume smaller than that of the first vertical groove, extend in the tire width direction from both end portions of the first vertical groove in the tire circumferential direction such that the first branch groove and the second branch groove extend in directions opposite to each other, and are respectively opened to the two outer main grooves, and the inner resonator includes a second vertical groove (36) which extends in the tire circumferential direction, and a

Abstract: A pneumatic tire comprises: a first block 71 located on a tire equatorial plane and having a recess 62 that inclines with respect to a tire width direction; and a second block 72 located to face the recess of the first block.

Abstract: A pneumatic tire comprising on a tread surface 1 a plurality of blocks 7, wherein: the blocks have an inclined groove 43 formed thereon; the inclined groove has a connecting portion 43a connected to the circumferential main grooves, a wide-width portion 43b connected to the connecting portion, and a narrow-width portion 43c connected to the wide-width portion; the wide-width portion and the narrow-width portion have inclination angles with respect to the tire circumferential direction smaller than the connecting portion; the blocks have a sipe 52a formed thereon, the sipe having one end opening to the connecting portion and the other end opening to the circumferential main grooves; and the sipe has a bent portion.

Abstract: A pneumatic tire includes: a zigzag circumferential direction groove that is formed in a tread portion by alternating and continuously formed first inclined portions and second inclined portions, the first inclined portions being inclined with respect to a tire circumferential direction and the second inclined portions being inclined in the opposite direction to the first inclined portions with respect to the tire circumferential direction; first lug grooves that are inclined in the same direction as the first inclined portions with respect to the tire circumferential direction and that merge with the first inclined portions; and second lug grooves that are inclined in the opposite direction to the first inclined portions with respect to the tire circumferential direction and that intersect the first inclined portions.

Abstract: An object is to enhance traction performance on snowy road surfaces while suppressing a drop in braking performance and handling stability performance on dry road surfaces and icy road surfaces. A tread (12) includes first auxiliary grooves (21) formed on one groove width direction side of lug grooves (18, the first auxiliary grooves (21) opening onto the lug grooves (18) and terminating inside central land portion rows (16) (land portions), and second auxiliary grooves (22) formed on the other groove width direction side of the lug grooves (18), the second auxiliary grooves (22) opening onto the lug grooves (18) so as to face opening portions (21A) of the first auxiliary grooves (21) that open onto the lug grooves (18), and terminating inside the central land portion rows (16) (land portions).

Abstract: A pneumatic tire comprising on a tread surface 1 a plurality of blocks 7, wherein: the blocks have an inclined groove 43 formed thereon; the inclined groove has a connecting portion 43a connected to the circumferential main grooves, a wide-width portion 43b connected to the connecting portion, and a narrow-width portion 43c connected to the wide-width portion; the wide-width portion and the narrow-width portion have inclination angles with respect to the tire circumferential direction smaller than the connecting portion; the blocks have a sipe 52a formed thereon, the sipe having one end opening to the connecting portion and the other end opening to the circumferential main grooves; and the sipe has a bent portion.

Abstract: A pneumatic tire comprises: a first block 71 located on a tire equatorial plane and having a recess 62 that inclines with respect to a tire width direction; and a second block 72 located to face the recess of the first block.

Abstract: An object is to enhance traction performance and handling stability performance, these being related to braking performance and acceleration performance on snowy road surfaces. A tread (12) of a pneumatic tire (10) includes: two circumferential direction main grooves (14) that are formed further to the tire width direction inside from the tread (12) ground contact edge T than positions at ? of the ground contact width W and that extend along the tire circumferential direction; a central land portion row (16) formed between the two circumferential direction main grooves (14); edge land portion rows (18) respectively formed at tire width direction outsides of the two circumferential direction main grooves (14; and main lug grooves (20) extending in the edge land portion rows (18) from the circumferential direction main grooves (14) towards the ground contact edges T.

Abstract: A pneumatic tire includes: a zigzag circumferential direction groove that is formed in a tread portion by alternating and continuously formed first inclined portions and second inclined portions, the first inclined portions being inclined with respect to a tire circumferential direction and the second inclined portions being inclined in the opposite direction to the first inclined portions with respect to the tire circumferential direction; first lug grooves that are inclined in the same direction as the first inclined portions with respect to the tire circumferential direction and that merge with the first inclined portions; and second lug grooves that are inclined in the opposite direction to the first inclined portions with respect to the tire circumferential direction and that intersect the first inclined portions.

Abstract: A pneumatic tire which comprises a land portion (10) and a land portion (20). A main groove (50) extending along the tire circumferential direction is formed between the land portion (10) and the land portion (20). The land portion (10) comprises a groove wall (10a) that forms the main groove (50). The land portion (20) comprises a groove wall (20a) that forms the main groove (50). The groove wall (10a) and the groove wall (20a) are serpentine along the tire circumferential direction (R) when seen from a plane of the tread surface, and the groove width of the main groove (50) in the tread width direction (WTR) varies in a predetermined repetition interval (?) along the tire circumferential direction. The ratio of the minimum width (WMIN) of the groove to the maximum width (WMAX) of the groove satisfies a relation of 35%?WMIN/WMAX?85%.

Abstract: In a pneumatic tire 10, inclined grooves 120, 170 are formed, the groove 120 with groove depth becoming larger and groove width in circumferential-direction becoming smaller as the groove 120 extends toward the inner side in width-direction, the groove 170 with groove depth becoming larger and groove width in the circumferential-direction becoming smaller as the groove 170 extends toward the outer side in the width-direction. An outer end portion of the groove 120 in the width-direction is continuous with a land portion 110 and an inner end portion of the groove 120 in the width-direction extends toward circumferential groove 22 along an end portion of a land portion 160 in the circumferential-direction. An inner end portion of the groove 170 in the width-direction is continuous with the land portion 160 and the groove 170 extends along an inner end portion of the land portion 110 in the width-direction.