Provided is a tire set for three-wheeled vehicles, the tire set being to be mounted on a three-wheeled vehicle of a type that makes a turn by tilting tires during cornering, and the tire set exhibiting excellent ride comfort, especially during high-speed running, and excellent handling performance and lightness in weight. The tire set for three-wheeled vehicles is to be mounted on a three-wheeled vehicle that is configured with two front wheels and one rear wheel or with one front wheel and two rear wheels and includes a mechanism for tilting tires during cornering. A two-wheel side tire to be mounted on the two-wheel side has a tire diameter smaller than a tire diameter of a one-wheel side tire to be mounted on the one-wheel side, and the two-wheel side tire includes a lateral groove (1) extending across the tire equator on a tread portion.

A tire with improved uneven wear resistance has a designated tire rotation direction and includes inclined grooves in both halves of the tread surface divided by the tire equatorial plane, the inclined grooves extending inward in the tire width direction from the tread surface edge side, being inclined opposite the tire rotation direction, and being aligned in the tire circumferential direction; and an inter-inclined-groove land portion formed between each pair of inclined grooves that are adjacent in the tire circumferential direction. Along a land portion edge of the inter-inclined-groove land portion on the tire rotation direction side thereof, a point P1 located of the tread half-width from the tire equatorial plane in the tire width direction is positioned on the tire rotation direction side of a point P2 located of the tread half-width from the tire equatorial plane in the tire width direction.

A pneumatic tire includes a tread; sidewalls; and beads. Lug grooves are formed in the tread inclining symmetrically about an equator, an inclination angle of the lug grooves relative to the lateral direction being 1545. A width W1 of the lug grooves at the tread edge and an interval W2 between the lug grooves at the tread edge satisfying 0.7W1/W21.5. Shoulder grooves connecting lug grooves are inclined in an opposite direction to the lug grooves have an inclination angle relative to the lug grooves being 80100, a center position of the shoulder grooves being 15% to 35% of tread width TW from the equator. An area A1 of the shoulder grooves and an area A2 of shoulder blocks satisfy 0.2A1/A20.6. A groove area ratio of the tread is 0.4 to 0.7.

A pneumatic tire includes a tread; sidewalls; beads inward of the sidewalls; lug grooves formed in the tread and inclined symmetrically about the equator, an inclination angle of the lug grooves with respect to the lateral direction being 1545; and shoulder grooves connecting the lug grooves and inclined in an opposite direction to the lug grooves, a center line of the shoulder grooves at both sides meeting with two of the lug grooves at intersection points. A difference between distances L1, L2 from the equator to the intersection points and a tread width TW satisfy TW0.03|L1L2|TW0.2. An average value of the distances and the tread width TW satisfy TW0.15(L1+L2)/2TW0.35. A groove area ratio of the tread is from 0.4 to 0.7.

A tire pattern structure including a tread pattern and a sidewall pattern is formed by uniformly distributed patterns in the circumferential direction of a tire. The tread pattern is formed by two long spoon-shaped pattern blocks symmetrical with respect to the center of the tire tread and the axial direction of the tire. A spoon-shaped pattern block group is across the center of the tire tread and each interlaced and mapped sideway along the center of the tire tread formed by upper and lower long spoon-shaped pattern block groups. The two spoon-shaped patterns are coupled from a head block to a handle block and bent at the tire shoulder to couple the sidewall pattern formed by the upper and lower sidewall pattern blocks which are formed by a quadrilateral block of two protrusions and three recessed blocks to overcome rough terrains and provide excellent mud and water removing performance.

An agricultural tool used to form furrows includes a generally cylindrical support and a plurality of tires. Each tire includes a sole by way of which the tire is mounted on the support, a tread opposite the sole (3) and two sidewalls that connect the tread to the sole. The sole, the tread (5) and the sidewalls jointly form a deformable casing. The tread of at least one of the plurality of tires has a generally domed shape. The sidewalls of this tire are generally inclined radially. The domed shape of the tread and the inclination of the sidewalls are such that the deformation of the casing urges the sole axially outward.

The present invention concerns a tire (10) comprising a tread (11) provided with a base surface (14) and with a plurality of ribs (12), each rib (12) being provided with a front wall and a rear wall, wherein, on the front wall of the rib (12), under a top portion (13) of the front wall, a shaped profile (15) is present, with a base in the portion of the tread (11) comprised between the front wall of the rib (12) and the adjacent rib, height equal to a portion of the overall height of the front wall of the rib (12) and a length that extends in the transverse direction with respect to the height of the rib (12), characterised in that said shaped profile (15) has a section that defines at least one flat surface (17) of the shaped profile (15) which is parallel, or inclined at an angle up to 20, with respect to the surface of the head (16) of the rib and which is joint to said top portion (13) of the front wall of the rib (12) by means of a connecting surface (18), at least one sharp angle (19) of the shaped profile (15) and at least one front wall (23) of the shaped profile (15), which is joint to said base surface (14) of the tread (11) by means of a connecting surface (21).

A heavy load tire includes a first inner widthwise groove which opens to a circumferential groove, and a first outer widthwise groove which extends outward in the tire-widthwise direction and opens to the circumferential groove at a location facing the first inner widthwise groove are arranged in the tire-circumferential direction on at least one side of the tire equator line of the tread portion. The first inner widthwise groove has an inflection point where a direction of a convex or a concave with respect to the tire-circumferential direction changes, and has a curved convex shape toward a tire normal rotation direction side from the inflection point to the circumferential groove. A groove wall forming the first outer widthwise groove on a side opposite to a tire normal rotation direction extends outward in the tire-widthwise direction while being inclined toward a side opposite to the tire normal rotation direction.

A pneumatic tire has a non-stretchable tread (30) flanked by two shoulder regions (34), and two non-stretchable bead regions (36) for mounting the tire to a wheel, each bead region being connected via a sidewall to the corresponding bead region. Each sidewall has a first portion (38) extending inwardly relative to a width of the tire from one of the bead regions (36) to a deflection region (40), and a second portion (42) extending outwardly relative to the width of the tire from the deflection region (40) to a corresponding one of the shoulder regions (34). A non-stretchable girth-limiting configuration (44, 46, 56) and a radial reinforcing structure (48, 50, 52) are associated with the first portion (38) of each of the sidewalls, thereby limiting radial flexing of first portion (38) and maintaining an annular concavity between the bead region (36) and the shoulder region (34).