TIRE,申请号US201414771063-传众专利搜索

发明名称	TIRE
摘要	To improve motion performance of a tire on a dry road surface and also improve drainage performance of a land so as to improve motion performance of the tire on a wet road surface. A tire (1) includes a land (20) formed on a tread portion (2). A ground contact surface (30) of the land (20) is formed in a convex shape in which a plurality of curved portions (31 to 33) each having a predetermined curvature Rc, Re, and Rm is smoothly connected at least on a section of the land (20) in a tire width direction H. Rc<Re holds when a curvature of the center curved portion (31) including a center part (35) of the ground contact surface (30) is Rc and a curvature of the end curved portion (32) including an end portion (34) of the ground contact surface (30) is Re. The curvature Rm of the curved portion (33) located between the center curved portion (31) and the end curved portion (32) is within a range of Rc to Re.
申请公布号	US2016009143(A1)	申请公布日期	2016.01.14
申请号	US201414771063	申请日期	2014.03.05
申请人	BRIDGESTONE CORPORATION	发明人	KOBAYASHI Fumitaka
分类号	B60C11/03;B60C11/13	主分类号	B60C11/03
代理机构		代理人
主权项	1. A tire including a land formed on a tread portion, wherein a ground contact surface of the land is formed in a convex shape in which a plurality of curved portions each having a predetermined curvature is smoothly connected at least on a section of the land in a tire width direction, Rc<Re holds when a curvature of a center curved portion including a center part of the ground contact surface is Rc and a curvature of an end curved portion including an end portion of the ground contact surface is Re, and a curvature of a curved portion located between the center curved portion and the end curved portion is within a range of Rc to Re.
地址	Tokyo JP