| 摘要 |
<p>The invention concerns a solid tyre comprising a running tread (1) including at least a unit (3) for measuring the tyre road adhesion, comprising: a central zone (10), a surrounding zone (20) around the central zone (10), a sensor (40) responsive to at least a tangential force exerted on the radially outer summit (11) of the central zone (10) being provided opposite the summit (11), the central zone (10) and the surrounding zone (20) fulfilling the two conditions: a) Rzzc < Rzze b) (i) Rxzc/Rzzc > Rxze/Rzze or (ii) Ryzc/Rzzc > Ryze/Rzze, wherein x, y and z represent the circumferential, axial and radial directions for the tyre, Rzzc and Rzze represent the rigidity levels of the central zone (10) and of the surrounding zone (20) at a force oriented perpendicularly to the radially outer surface (5), Rxzc and Rxze (respectively Ryzc and Ryze) represent the rigidity levels of the central zone (10) and of the surrounding zone (20) at a force oriented tangentially to the radially outer surface (5) in the circumferential direction (X) of the tyre (respectively in the axial direction (Y)).</p> |
