A tire has a tread comprising at least two tread pattern elements (MA, MB) distributed periodically in the circumferential direction at pitches (PA, PB). Each tread pattern element is formed of three portions (Z1, Z2, Z3), each defining a volumetric element of which the leading edge corner is the one common to the tread surface and is the first to enter the contact patch in which the tire is in contact with the ground. With each leading edge corner being chamfered, in the portions Z1 and/or Z2, and/or Z3, the widths of the chamfers of the leading edge corners (LC.sub.i.sup.A, LC.sub.i.sup.B, i ranging from 1 to 3) satisfy the following inequalities: a) for the portion Z1:

[00001]$\left[\left[\right]\right]0.8*\frac{PA}{PB}\le \frac{L{C}_1^A}{L{C}_1^B}\le \frac{PA}{PB}*1.2;$

b) for the portion Z2:

[00002]$\left[\left[\right]\right]0.8*\frac{PA}{PB}\le \frac{L{C}_2^A}{L{C}_2^B}\le \frac{PA}{PB}*1.2;$

and c) for the portion Z3:

[00003]$ [ [ ] ] 0.8 * P ⁢ A P ⁢ B ≤ L ⁢ C 3 TIRE 20230061615 · 2023-03-02 · Ryohei TAKEMORI A tire includes first through fourth chamfered portions where tire width direction dimensions change in a tire circumferential direction formed along respective vehicle mounting outer edges of first through fourth circumferential main grooves. A second inclined groove adjacent to a vehicle mounting outermost position of the second chamfered portion is formed. A third inclined groove adjacent to a vehicle mounting outermost position of the third chamfered portion is formed. At least one circumferential narrow groove extending in the tire circumferential direction is formed in at least one of a first land portion and a second land portion. PNEUMATIC TIRE 20230068330 · 2023-03-02 · Toyo Tire Corporation · Nobuyuki Kamada In a pneumatic tire according to an embodiment, a pattern is formed in a pattern forming area provided on a surface of a sidewall. The pattern includes ridges protruding from a reference surface in the pattern forming area, grooves recessed from the reference surface, and flat surfaces interposed between the ridges and the grooves adjacent to each other and extending along the reference surface. Molding element for manufacturing a noise reducing tread 11628640 · 2023-04-18 · Compagnie Generale Des Etablissements Michelin · Anthony Gueugneau, Khotchakorn Pengsaloong, Gael Roty, Xavier Marduel The molding element has a plurality of contacting element delimited by grooves, the molding element having a molding surface for forming a contact face of the contacting element intended to come into contact with ground during rolling and a groove forming rib portion for forming the groove comprising two opposed rib side faces for forming two opposed groove side faces and a rib top face connecting two rib side faces for forming a groove bottom, the groove forming rib portion providing a space opening to at least one of the rib side faces and/or to the rib top face and an insert being received in the space for forming a portion of the groove and a closing device in the groove, the insert comprises at least one notched plate of thickness t1, the notched plate includes at least one notch for forming a flexible fence of the closing device. TIRE 20220324261 · 2022-10-13 · Sumitomo Rubber Industries, Ltd. · Keiji HIGUCHI, Ryota IKEDA, Takashi HAGIHARA, Takuya OSAWA, Takuya FUJIMOTO A tire includes a tread portion including four circumferential grooves between outboard and inboard tread edges, and five land portions divided by the circumferential grooves. The circumferential grooves include an inboard shoulder circumferential groove located nearest to the inboard tread edge in the circumferential grooves. The land portions include an inboard shoulder land portion disposed axially outward of the inboard shoulder circumferential groove and having a ground contact surface with the smallest axial width in the land portions. The inboard shoulder land portion is provided with inboard shoulder lateral grooves and inboard shoulder sipes. The inboard shoulder lateral grooves include inner ends away from the inboard shoulder circumferential groove. The inboard shoulder lateral grooves extend axially outward from the inner ends to a location beyond the inboard tread edge. The inboard shoulder sipes extends from the inboard shoulder circumferential groove to a location beyond the inboard tread edge. TIRE 20230115477 · 2023-04-13 · Gerardo Del Guercio, Mattia Giustiniano A tyre tread (10) has a groove (12) having a snow trapping device in the form of a dam (14) in it. The dam (14) is attached to a bottom wall (16) of the groove (12), and to side walls (18, 20) of the groove (12). The dam (14) has a first, snow trapping surface (22) and a second, inclined surface (24) which face in opposite sides in the groove longitudinal direction. The second, inclined surface (24) directs the flow of water away from the bottom wall (16). A hole (32) and a sipe (34) form a passageway (30) for water through the dam (14) in the groove longitudinal direction. The passageway reduces water flow recirculation. The whole of the dam (14) is between the side walls (18, 20) of the groove (12). Heavy-duty goods vehicle tire 11465449 · 2022-10-11 · Compagnie Generale Des Etablissements Michelin · Philippe Mansuy Tread (2) of a radial tire for a heavy vehicle. The tire alternatingly rolls in laden and unladen states on descent and ascent, respectively. Tread (2) has total width W.sub.T and comprises first median portion (21) having median width W.sub.c, where 0.2W.sub.T≤W.sub.c≤0.5W.sub.T. Tread (2) is axially delimited by second and third lateral portions (22, 23) having respective lateral widths (W.sub.S2, W.sub.S3) at least equal to 25% and at most equal to 40% of total width W.sub.T. Angle A.sub.51 of leading face (51) of every element in relief (31) of first median portion (21) is strictly greater than angle A.sub.61 of trailing face (61) of said element in relief (31). Angle (A.sub.52, A.sub.53) of leading face (52, 53) of every element in relief (32, 33) of each of the second and third lateral portions (22, 23) is strictly less than angle (A.sub.62, A.sub.63) of trailing face (62, 63) of said element in relief (32, 33). Pneumatic tire 11465448 · 2022-10-11 · The Yokohama Rubber Co., Ltd. · Masaya Mita A tread pattern of a pneumatic tire includes an inner circumferential main groove and an outer circumferential main groove that have groove walls extending in a tire circumferential direction while the angle of the groove walls relative to a contact surface varies with a predetermined amplitude, an inner lug groove extending from the inner circumferential main groove toward the outer circumferential main groove, an outer lug groove extending from the outer circumferential main groove toward the inner circumferential main groove, and a sipe configured to communicate the inner lug groove with the outer lug groove. A pair of chamfered surfaces are provided on walls of the sipe along an extension direction of the sipe on the contact surface. Pneumatic tire 11465448 · 2022-10-11 · The Yokohama Rubber Co., Ltd. · Masaya Mita A tread pattern of a pneumatic tire includes an inner circumferential main groove and an outer circumferential main groove that have groove walls extending in a tire circumferential direction while the angle of the groove walls relative to a contact surface varies with a predetermined amplitude, an inner lug groove extending from the inner circumferential main groove toward the outer circumferential main groove, an outer lug groove extending from the outer circumferential main groove toward the inner circumferential main groove, and a sipe configured to communicate the inner lug groove with the outer lug groove. A pair of chamfered surfaces are provided on walls of the sipe along an extension direction of the sipe on the contact surface. Tyre 11465451 · 2022-10-11 · Sumitomo Rubber Industries, Ltd. · Yuzo Kawasaki A tyre includes a tread portion including a first land portion having a circumferentially extending first edge and a circumferentially extending second edge on its ground contacting surface. The first land portion is provided with sipes each extending from the first edge to the second edge. The sipes include bent sipes each including two or more sipe elements joined with each other to form a bent portion. The bent sipes include first sipes and second sipes. Each first sipe, as the sipes elements, includes at least one first sipe element inclined in a first direction with respect to a tyre axial direction and at least one second sipe element inclined in a second direction opposite to the first direction with respect to the tyre axial direction. All sipe elements of each second sipe are inclined in the first direction with respect to the tyre axial direction. $