Tire tread for a heavy goods vehicle comprising stone-expelling and noise-preventing projections

A tire for a vehicle, comprising a tread, which is intended to come into contact with a ground via a tread surface and which comprises cuts delimiting raised elements extending from a bottom surface along a radial direction,

• wherein at least one cut is a longitudinal furrow, which is delimited by a first lateral wall and a second lateral wall that are facing each other and connected to each other by a furrow bottom, and which extends along an entire circumferential length L of the tread along a longitudinal direction,
• wherein the longitudinal furrow has a depth H, which is measured between the tread surface and the furrow bottom along a radial direction, and a mean width W, which is measured between the first and second lateral walls in the tread surface along a transverse direction,
• wherein the longitudinal furrow comprises protuberances distributed in the longitudinal direction,
• wherein each protuberance extends transversely from a depression in the first lateral wall of the longitudinal furrow towards the second lateral wall of the longitudinal furrow, the depression having a longitudinal length LA along the longitudinal direction and a transverse width TA along the transverse direction towards inside the longitudinal furrow,
• wherein each protuberance has a free end that is positioned at a transverse distance d1 from the second lateral wall of the longitudinal furrow at least equal to 0.4 times the mean width W of the longitudinal furrow,
• wherein each protuberance extends radially outwards from the furrow bottom over a height H′, at the free end of the protuberance, at least equal to 0.7 times the depth H of the longitudinal furrow,
• wherein each protuberance has, at the free end of the protuberance, a longitudinal thickness L1 at least equal to 1 mm, and
• wherein each protuberance is positioned facing a portion of the second lateral wall, which is free of protuberance.