A tire includes a tread formed with tread elements that include a dual angled chamfer. The tire includes a pair of sidewalls extending radially outward to a ground-engaging tread. A plurality of circumferentially-extending grooves extend about the tread and define a plurality of ribs. A plurality of laterally-extending grooves cooperate with the circumferential grooves to divide the ribs into tread elements. A plurality of selected tread elements are formed with a dual angled chamfer. Each of the selected tread elements includes a body, a radially outer, ground-engaging surface, a chamfer side, and a dual angled chamfer that is formed in the body between the ground-engaging surface and the chamfer side.

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 20230120001 · 2023-04-20 · Toyo Tire Corporation · Yoshiki Sato A pneumatic tire of the present disclosure includes: a pair of main grooves, lateral grooves and longitudinal grooves, wherein a center land, repeats, in the tire circumferential direction, four center blocks, each of the four center blocks includes a recessed portion that is open to the main groove, the lateral groove or the longitudinal groove and has one end closed, when the recessed portions provided in the four center blocks are defined as first to fourth recessed portions, the first recessed portion and the second recessed portion extend in a direction inclined to one direction with respect to the tire equator line, and the third recessed portion and the fourth recessed portion extend in a direction inclined to another direction with respect to the tire equator line, and a groove width of each of the first to fourth recessed portions is 5.0 mm or more. TIRE 20220324263 · 2022-10-13 · Sumitomo Rubber Industries, Ltd. · Koichi NAKAJIMA A tire 1 includes a tread portion 2 provided with a block 3. A block corner portion 5 of the block 3 has a stepped chamfered portion 7 formed therein in which a block height decreases stepwise from a tread surface 3a toward a top portion 3b. The stepped chamfered portion 7 includes upper surfaces 10 parallel to the tread surface 3a, and step corner portions 12 each formed so as to protrude toward a block outer side as a result of the upper surface 10 and a vertical surface 11 or the vertical surface 11 and the tread surface 3a intersecting each other. An angle θ1 between the tread surface 3a and a virtual straight line n3 connecting the step corner portions 12 in a vertical cross-sectional view, of the block corner portion 5, passing through the top portion 3b is 10 to 40 degrees. TIRE 20230110465 · 2023-04-13 · Tsuyoto SHIMIZU In a cross-sectional view of a tire, a line connecting, by a single arc, a ground contact edge in a shoulder land, and midpoints of center and middle lands in a width direction is a profile. A distance between intersection points of the profile and lines extended from groove walls, on sides of the center land, of a main groove adjacent to both ends of the center land in the width direction is defined as Wc. Ends of the center land and of the middle land on both sides of the main groove are recessed toward the inner side in the radial direction relative to the profile, the recess of the middle land end is larger than the recess of the center land end, and a range of 0.03Wc from the center land end on the middle land side does not touch the ground. Tire with improved snow performance without sacrificing dry braking or wear 11623478 · 2023-04-11 · COMPAGNIE GENERALE DES ETABLISSMENTS MICHELIN · Patrick Jon Buresh, Jason Schoenmaker, Robert Dillon, Phillip William Check, William Marshall Thompson Embodiments of the disclosure include pneumatic tires having improved snow performance. Said tires include a cap ply extending at least partially across a full width of at least one of the belt plies and having a rupture force greater than 210 N per 15 mm of cap ply width. A shoulder rib includes a compliance groove or sipe extending primarily in a circumferential direction and to a depth equal to or less than 75% of the skid depth. The lateral sipes and grooves are arranged to provide an average lateral feature spacing of less than 15 mm. The average inclination angle for the lateral grooves is greater than 6 degrees in the shoulder ribs and is greater than 20 degrees in the central ribs. A longitudinal non-lateral sipe edge density is greater than 21.1 micrometers/mm.sup.2. A longitudinal lateral sipe edge density for all lateral sipes is greater than 5.5 micrometers/mm.sup.2. Tire 11618284 · 2023-04-04 · Sumitomo Rubber Industries, Ltd. · Takashi Hagihara A tire includes a tread portion. The tread portion has a main groove extending continuously in a tire circumferential direction, and a land portion adjacent to the main groove. The land portion has lateral grooves extending from the main groove in a tire axial direction. Each of the lateral grooves has a first portion communicating with the main groove, and a second portion connected to the first portion. The first portion has a larger groove width than the second portion and has a smaller groove depth than the second portion. Tire 11648804 · 2023-05-16 · Sumitomo Rubber Industries, Ltd. · Koichi Nakajima A tire can include a block having a recess. The recess can include a first opening on a tread side and a second opening on a side wall face side. The first opening can include a pair of first edges extending from a first vertex to the side wall face side so as to form a V-shaped edge on the tread. The second opening can include a pair of second edges that can extend from a second vertex on the side wall face, and can be connected to the pair of first edges at intersection points. One of the pair of second edges can include a second edge body that can extend on a straight line from the second vertex to the intersection point, and a second edge subsidiary portion that can be bent so as to widen the second opening. Pneumatic tire 11685195 · 2023-06-27 · The Yokohama Rubber Co., Ltd. · Ryouichi Tomomatsu A tread pattern of a pneumatic tire includes continuous lands provided in half treads on first and second sides, circumferential main grooves, and sipes having a chamfered configuration. The sipes extend inward in a lateral direction from the circumferential main grooves and are closed in the middle of regions of the continuous lands. An edge shape of each of sipes on the first side includes an extending portion extending inward in the lateral direction constantly in an extension direction and a bent portion that is provided to be joined to an end of the first extending portion and that has the edge shape bent from the extension direction of the first extending portion to a direction close to the circumferential direction. Every portion of the first extending portion and the bent portion of the sipes are provided with a main body portion and a sipe chamfered portion. $