TREAD FOR HEAVY DUTY TRAILER LIKE VEHICLE AND MOULDING ELEMENT

摘要

The tread (2) has incisions (4) that are circumferentially oriented and extended into the tread over a depth less than the average thickness of the tread. Each incision is extended radially toward an inner side of the tread by a channel, where each incision interconnects drain wells (6). Each drain well is formed in the tread by an opening (61) on a rolling surface (3) of the tread and another opening in the channel. A protuberance formed on a base of the channel has height less than that of the channel, and width lower than the maximum width of the channel. An independent claim is also included for a mold element for molding an incision in a tread of a tire.