发明名称 TIRE
摘要 An object is to improve noise performance of a tire while enhancing movement performance thereof. At least one of the land portions (20) includes an outer wall surface (30) positioned on a vehicle outer side, an inner wall surface (31) positioned on a vehicle inner side, a tread surface (32) on an outer side in a tire radial direction, an outer edge (33) of the tread surface (32) in contact with the outer wall surface (30), and an inner edge (34) of the tread surface (32) in contact with the inner wall surface (31). The tread surface (32) is formed in a convex shape which is smoothly curved between the outer edge (33) and the inner edge (34) and which has a top portion (43) most protruded outward in the tire radial direction, in a cross section of the land portion (20) in a tire width direction. A relationship of Do<Di is satisfied when a distance between the top portion (43) and the outer edge (33) in the tire radial direction is donated as Do, and a distance between the top portion (43) and the inner edge (34) in the tire radial direction is donated as Di. The top portion (43) is positioned closer to the inner edge (34) side from a center (P) of the land portion (20) in the tire width direction.
申请公布号 US2016236519(A1) 申请公布日期 2016.08.18
申请号 US201415026639 申请日期 2014.06.30
申请人 BRIDGESTONE CORPORATION 发明人 WAKIYAMA Tadashi;HAYASHI Shoji;MATSUNAGA Ietomo;WADA Masaki;KOIDE Masafumi;NAKAI Tatsuya
分类号 B60C11/03 主分类号 B60C11/03
代理机构 代理人
主权项 1. A tire comprising a plurality of land portions formed on a tread portion by a plurality of circumferential grooves extending in a tire circumferential direction, a mounting direction of the tire with respect to a vehicle being designated, wherein: at least one of the land portions includes an outer wall surface positioned on a vehicle outer side, an inner wall surface positioned on a vehicle inner side, a tread surface on an outer side in a tire radial direction, an outer edge of the tread surface in contact with the outer wall surface, and an inner edge of the tread surface in contact with the inner wall surface; the tread surface of the land portion is formed in a convex shape which is smoothly curved between the outer edge and the inner edge and which has a top portion most protruded outward in the tire radial direction, in a cross section of the land portion in a tire width direction; a relationship of Do<Di is satisfied when a distance between the top portion of the tread surface and the outer edge in the tire radial direction is donated as Do, and a distance between the top portion of the tread surface and the inner edge in the tire radial direction is donated as Di; and the top portion of the tread surface is positioned closer to the inner edge side than a center of the land portion in the tire width direction.
地址 Tokyo JP