| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire and a tire metal mold capable of preventing chipping and cracking. SOLUTION: The pneumatic tire is vulcanized/molded by a sectional type tire metal mold in which an annular side mold 13 for molding a tread part is constituted by a plurality of sectors 14 divided along a circumferential direction K. Sipes 4, 7 having only one end opened to a circumferential groove 2 and extending in a tire width direction are arranged on a land part 3 sectioned/formed by circumferential grooves 2 extending in a tire circumferential direction T on a tread surface 1 along the tire circumferential direction T with a predetermined gap. Length W1 in tire width direction of the sipes 4X, 7X positioned at an area S1 near a division position of the sector 14 becomes shorter than the sipes 4Y, 7Y positioned at other areas S2. COPYRIGHT: (C)2005,JPO&NCIPI |
