Patent ID: 9004125
Filing Date: 2015-04-14
Classification: B60C,Y10S

Abstract:
1. A pneumatic tire comprising a plurality of circumferential main grooves extending in a tire circumferential direction and a plurality of land portions formed by being partitioned by the circumferential main grooves comprising, when areas on left and right sides of the tread portion, with a tire equator as a boundary, are referred to as an inner side area and an outer side area respectively: a central land portion located on the tire equator including a central narrow groove and a first central sipe located in the inner side area, and a notch portion and a second central sipe located in the outer side area, wherein the central narrow groove has an arc shape, an inner diameter side of the arc shape faces towards a tire ground contact edge side, one end of the central narrow groove is open to another adjacent central narrow groove, and another end thereof is open to the circumferential main groove on an inner side area side; the first central sipe is disposed between the adjacent central narrow grooves and connects the central narrow groove and the circumferential main groove on the inner side area side; the first central sipe extends from the center of the central narrow groove in an extending direction of the arc shape of the central narrow groove and reaches to the circumferential main groove on the inner side area side; one end of the notch portion is open to the circumferential main groove on an outer side area side and another end thereof terminates within the central land portion; and the second central sipe is disposed between adjacent notch portions, one end of the second central sipe is connected to the circumferential main groove on the outer side area side and another end thereof terminates within the central land portion.