Tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorsTakayuki Namera, Yuto Hashimoto, Sho Nakajima, Ryuhei Sanae
Life of this patent
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Abstract
A tire comprises a tread portion provided with blocks including a first block provided with a plurality of sipes. Each sipe comprises a zigzag portion in a cross section perpendicular to the sipe length direction, and a zigzag portion in a cross section parallel to the ground contacting top surface of the first block. Each of the sipes is provided with at least one tie bar protruding radially outwardly from the bottom of the sipe and terminating without reaching the ground contacting top surface. The sipes includes a first sipe having the tie bar at a first position in the tire axial direction, and a second sipe having the tie bar at a second position in the tire axial direction different from the first position.
Claims10
A tire comprising a tread portion provided with a plurality of blocks including first blocks as shoulder blocks arranged in a tire circumferential direction along a tread edge of the tread portion,
- wherein each of the first blocks is provided with a plurality of zigzag sipes extending in a tire axial direction in parallel with each other across the entire width of the first block and arranged at intervals in the tire circumferential direction,
- in each of the first blocks, each of the zigzag sipes has a zigzag portion in a cross section perpendicular to the length direction of the zigzag sipe, and a zigzag portion in a cross section parallel to a ground contacting top surface of the first block,
- each of the zigzag sipes is provided with a single tie bar protruding radially outwardly from a bottom of the zigzag sipe and terminating without reaching the ground contacting top surface of the first block, and
- the tie bars of the respective zigzag sipes are arranged such that, between the circumferentially adjacent zigzag sipes, positions in the tire axial direction of the tie bars are different from each other.
Dependencies are inferred from the claim text.