公开(公告)号：US20070034308A1

公开(公告)日：2007-02-15

申请号：US10543938

申请日：2004-02-04

Applicant: Peter Campbell ,  Anthony Glazebrook ,  Alan Burdett

Inventor： Peter Campbell ,  Anthony Glazebrook ,  Alan Burdett

IPC: B60C17/04

CPC classification number: B60C17/06 ,  B60C17/04 ,  B60C17/041 ,  B60C17/044 ,  B60C17/045 ,  Y10T29/49494 ,  Y10T152/10009 ,  Y10T152/10036 ,  Y10T152/10495

Abstract: A wheel unit (10) comprises a wheel rim (12), a pneumatic tyre (14) receivable on the wheel rim (12) and a runflat assembly (16) adapted to be seated on the wheel rim (12) to close off a well (22) provided in the wheel rim (12). The runflat assembly (16) includes an annular support body (24) which is radially expandable to an expanded condition and contraction means (28,30) adapted to be operated via an opening (78) formed in the wheel rim (12). The contraction means (28, 30), when activated, is operable on the support body (24) to cause the support body (24) to be contracted to a radially contracted condition. The contraction mean is accessible through the opening (78) to cause the support body (24) to be radially contracted to seat the runflat assembly (16) on the wheel rim (12) to close off the well (22). The support body (24), when in its contracted condition, has a diameter greater than that of the wheel rim (12).

Abstract translation: 车轮单元（10）包括轮辋（12），可接收在轮辋（12）上的充气轮胎（14）和适于安置在轮辋（12）上的挡风玻璃组件（16），以关闭 （22），设置在轮辋（12）中。 漏气保护组件（16）包括可径向膨胀到扩张状态的环形支撑体（24），并且适于通过形成在轮缘（12）中的开口（78）来操作的收缩装置（28,30）。 所述收缩装置（28,30）在被启动时可在所述支撑体（24）上操作以使所述支撑体（24）收缩到径向收缩状态。 收缩平均值通过开口（78）可以通过使支承体（24）径向收缩以将漏气保险装置（16）安置在轮辋（12）上以便关闭井（22）。 当处于收缩状态时，支撑体（24）的直径大于轮辋（12）的直径。