公开(公告)号：US20020062890A1

公开(公告)日：2002-05-30

申请号：US09885164

申请日：2001-06-21

Applicant: BRIDGESTONE CORPORATION

Inventor： Ken Masaoka ,  Hiroki Sawada ,  Mitsuo Hashimoto ,  Yuichiro Ogawa

IPC: B60C005/00

CPC classification number: B60C15/024 ,  B60C3/00 ,  B60C3/04 ,  B60C15/0213 ,  B60C15/04

Abstract: The invention provides an assembly of a pneumatic tire and a rim. The tire has at least one carcass ply 2 and a belt layer 8. The ply 2 is composed of ply cords and has end portions. The belt layer 8 is composed of belt cords provided outside of the ply 2. Each belt cord extends in a direction intersecting the ply cord. Each of the end portions is held in the rim 12. The width of the tire is maximum in a circumferential cross section nullTnull with a cylindrical shape with respect to the center axis nullDnull of the tire. The cross section nullTnull extends through the rim 10. When the tire is rolled under a load and a stress is applied on the tire as an arrow nullXnull, a neighboring portion 2d near the end portions 2a, 2b is considerably bending-deformed as arrows nullYnull to absorb the stress. The roundness of the belt layer 8 is thus preserved to reduce the rolling resistance of the tire considerably.

Abstract translation: 本发明提供一种充气轮胎和轮辋的组件。 轮胎具有至少一个胎体帘布层2和带束层8.帘布层2由帘布层帘线构成并具有端部。 带层8由设置在帘布层2的外侧的带束帘线组成。每个带束帘线在与帘布层帘线相交的方向上延伸。 每个端部保持在轮辋12中。轮胎的宽度在轮胎的中心轴线“D”的圆周形状的圆周截面“T”中是最大的。 横截面“T”延伸穿过轮辋10.当轮胎在负载下滚动并且在轮胎上施加作为箭头“X”的应力时，靠近端部2a​​，2b的相邻部分2d相当弯曲， 变形为箭头“Y”以吸收应力。 因此保持带层8的圆度显着降低了轮胎的滚动阻力。