Abstract: An off-road pneumatic tire 10 having a tread 12 with a plurality of lugs 14, each lug 14 having a wide section 22 near at least one shoulder of the tread and a narrow section 24 crossing a centerline of the tread. In a preferred embodiment, each lug 14 having two wide sections 22, one extending from each shoulder 16, 18 of the tread 12 and being interconnected by the narrow section 24.

Abstract: An off-road pneumatic tire 10 having a plurality of lugs 14 extending from a first shoulder 16 to a second shoulder 18. The plurality of lugs 14 are separated by a plurality of wide grooves 20. The tire 10 has at least a first lug 22 and a second lug 24. The lugs 14 alternate circumferentially between the first lug 22 and the second lug 24. The first lugs 22 has three tread elements 30, 32, 34 separated by a first and second narrow groove 26, 28, and the second lug 24 has two tread elements 36, 38 separated by a third narrow groove 40. In a preferred embodiment, the respective lugs 14 incline from the first shoulder 16 to the second shoulder 18 and are interconnected by wide groove tie bars 44.

Abstract: A pneumatic tire having an aspect ratio of not more than 55% and comprising: an axially protruding rib provided on each side of the tire to overhang a flange of a wheel rim; a carcass extending between bead portions through a tread portion and sidewall portions; a belt disposed radially outside the carcass; a tread rubber disposed radially outside the belt to define the ground contacting surface of the tire; a sidewall rubber disposed on each side of the tire and extending from the tread portion to the rib along the axially outside of the carcass; a clinch rubber disposed on each side of the tire and extending from the bead portion to the rib along the outer surface of the tire; and a wing rubber disposed axially outside the sidewall rubber and extending from the tread rubber to the rib along the outer surface of the tire, the wing rubber being softer than the tread rubber.

Abstract: A tread (20) for a pneumatic tire (10) has three distinct traction elements (40, 42, 44) arranged in three circumferential extending rows (2, 4, 6). The middle row (4) has a chevron-shaped traction element (42) oriented in an alternating pattern where a truncated apex (43) and an open end (50) are oriented facing the tread shoulders (24, 26). The two shoulder rows (2, 6) each have a plurality of two distinctly differentially-shaped, laterally extending lugs (40, 44), a first laterally extending shoulder lug (40) which has a narrow axially inner end (41) adjacent an open end (50) of the chevron-shaped traction element (42) and a second laterally extending shoulder lug (44) which has an enlarged axially inner end (45) aligned circumferentially with the truncated apex (43).

Abstract: A tire having a pair of beads; a carcass ply having ends, each of the ends anchored to a respective one of the beads; at least one belt ply extending circumferentially around the tire and disposed radially outward of the carcass ply; and a tread layer disposed radially outward of the at least one belt ply and formed from a first tread compound. The tread layer has a plurality of tread ribs; at least one groove disposed between adjacent tread ribs; and a groove wall lining covering from the at least one groove. The groove wall lining is made from a second tread compound different than the first tread compound.

Abstract: A pneumatic radial tire capable of effectively controlling the occurrence of wandering phenomenon when being used in vehicles such as passenger car, small-size truck, truck, bus and the like is provided, in which a second tread zone contacting with a mountain side of a slant road surface is arranged so as to project toward a side of a first tread zone contacting with a flat road surface and camber thrust of the radial tire is increased by the second tread zone during the running on ruts and the like under loading.

Abstract: A heavy duty radial tire includes a pair of shoulder portions tapered at an angle &agr; of from 40 to 50 degrees, a pair of zigzag main grooves extending circumferentially to form a pair of shoulder ribs, the shoulder ribs provided with lug grooves each having an axially inner end P1 terminated in the rib and an axially outer end opened at the tread edge TE, the bottom Ys of the lug grooves extending from the radially outer surface to the axially outer surface of the shoulder rib while inclining at an angle &bgr;, the height H1 of the tapered shoulder portion being in the range of from 50 to 67% of the depth Hg of the zigzag main grooves, the angle &agr; at the tread edge TE being larger than the angle &bgr; at the axially inner end P1, the distance LA between the axially inner end P1 and the zigzag main groove being in the range of from 0.95 to 1.

Abstract: An aggressive on/off-road pneumatic tire tread design for recreational vehicles which is highly durable, self cleaning, improves rolling resistance on paved roads, has excellent tread wear characteristics, and is relatively quiet on paved roads. The tread design includes a side wall tread portion including a scuff bar and the area between it and the ground contacting tread is further provided with raised emblems and distinctive markings which provide traction and reduce mud caking, The tire's tread includes a pair of parallel rows of opposing chevron shaped lugs, defining a zigzag channel therebetween, and an outer row of polyhedron shoulder lugs outboard of the chevron rows, the polyhedron lugs being three different sizes, a short, intermediate and long, sequentially arranged in sets of three with a short lug between each long and intermediate lug. Root risers in the lateral channel between each chevron shaped lug are provided to prevent stress crack running in the tread.

Abstract: A wheel for skates comprises a hub which is rotatably associable with a pivot and with which a tread is associated. A plurality of grooved regions are formed in the lateral surfaces of the tread and run gradually toward the median plane of the tread, so as to allow optimum stability when the lateral inclination assumed by the skate increases.