Tyre tread bands Tread patterns Anti-skid inserts

BPERFORMING OPERATIONS TRANSPORTING B60Vehicles B60CVEHICLE TYRES TYRE INFLATION TYRE CHANGING OR REPAIRING REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIES IN GENERAL DEVICES OR ARRANGEMENTS RELATED TO TYRES

B60C11/00Tyre tread bands Tread patterns Anti-skid inserts

B60C11/0008characterised by the tread rubber B60C11/0041comprising different tread rubber layers B60C11/005with cap and base layers B60C11/0058with different cap rubber layers in the axial direction B60C11/0066having an asymmetric arrangement B60C11/0075with different base rubber layers in the axial direction B60C11/0083characterised by the curvature of the tyre tread B60C11/01Shape of the shoulders between tread and sidewall B60C11/02Replaceable treads B60C11/03Tread patterns B60C11/0302directional pattern B60C11/0304Asymmetric patterns B60C11/0306Patterns comprising block rows or discontinuous ribs B60C11/0309further characterised by the groove cross-section B60C11/0311Patterns comprising tread lugs arranged parallel or oblique to the axis of rotation B60C11/0316further characterised by the groove cross-section B60C11/0318irregular patterns with particular pitch sequence B60C11/032Patterns comprising isolated recesses B60C11/0323tread comprising channels under the tread surface B60C11/0327characterised by special properties of the tread pattern B60C11/033by the void or net-to-gross ratios of the patterns B60C11/0332by the footprint-ground contacting area of the tyre tread B60C11/04in which the raised area of the pattern consists only of continuous circumferential ribs B60C11/042further characterised by the groove cross-section B60C11/045the groove walls having a three-dimensional shape B60C11/047the groove bottom comprising stone trapping protection elements B60C11/11in which the raised area of the pattern consists only of isolated elements B60C11/12characterised by the use of narrow slits or incisions B60C11/1204with special shape of the sipe B60C11/1218Three-dimensional shape with regard to depth and extending direction B60C11/1222Twisted or warped shape in the sipe plane B60C11/1236with special arrangements in the tread pattern B60C11/124inclined with regard to a plane normal to the tread surface B60C11/125arranged at the groove bottom B60C11/1259Depth of the sipe B60C11/1263different within the same sipe B60C11/1272Width of the sipe B60C11/1281different within the same sipe B60C11/13characterised by the groove cross-section B60C11/1307with special features of the groove walls B60C11/1315having variable inclination angles B60C11/1323asymmetric B60C11/1346covered by a rubber different from the tread rubber B60C11/1353with special features of the groove bottom B60C11/1369Tie bars for linking block elements and bridging the groove B60C11/1376Three dimensional block surfaces departing from the enveloping tread contour B60C11/1384with chamfered block corners B60C11/1392with chamfered block edges B60C11/14Anti-skid inserts B60C11/16of plug form B60C11/1606retractable plug B60C11/1612actuated by fluid B60C11/1618actuated by temperature B60C11/1625Arrangements thereof in the tread patterns B60C11/1631inclined with regard to the radial direction B60C11/1637Attachment of the plugs into the tread B60C11/1643with special shape of the plug-body portion B60C11/165conical B60C11/1656concave or convex B60C11/1662helical-shaped B60C11/1668with an additional collar B60C11/1675with special shape of the plug- tip B60C11/1681Spherical top portions B60C11/1687Multiple tips B60C11/1693Attachment of the plug-tip within the plug-body B60C11/18of strip form B60C11/185of metal comb form, lamellar shaped or blade-like B60C11/20in coiled form B60C11/22Tread rings between dual tyres B60C11/24Wear-indicating arrangements B60C11/243Tread wear sensors B60C11/246Tread wear monitoring systems