| 摘要 |
<p>The invention relates to a tread for a snow tyre, comprising lugs defined by grooves. Each lug comprises a contact surface intended to come into contact with a road, all or part of said lugs comprising at least one cavity (15) extending along the length of the lug. When viewed circumferentially, the aforementioned cavity has a generally rectangular cross-section having a thickness E measured along an axis perpendicular to the contact surface of the lug and a length L measured circumferentially. The dimensions E and L of the cavity are determined such that L = ½ * W, wherein W is the width of the lug measured circumferentially, and E =½ * L. The tread comprises an incision extending mainly circumferentially, by means of which the above-mentioned cavity opens onto the contact surface of the lug.</p> |
