Patent classifications
B60C2011/0016
TREAD OF TBR PNEUMATIC TIRES OF DRIVING WHEELS
A TBR pneumatic tire of a driving wheel comprising a tread having a design such as to confer an average tread slip of less than 0.5 mm and a tread points slip range of between 0.07 mm and 1.17 mm. The tread is manufactured with a compound comprising a cross-linking unsaturated chain polymer base comprising from 40 to 80% by weight of a stirene-butadiene rubber (SBR), a filler comprising from 40 to 80% by weight of silica and a vulcanization system.
Tire, and method for manufacturing tire
A tire having a layered structure includes: a resin member comprising at least one resin selected from the group consisting of a polyamide resin, a polyamide thermoplastic elastomer, a polyester resin, and a polyester thermoplastic elastomer; a resin adhesive layer disposed on the resin member; a rubber adhesive layer that is adhered to a side of the resin adhesive layer and that has a thickness of from 5 μm to 300 μm; and a rubber member disposed on a side of the rubber adhesive layer, wherein the tire is vulcanized, and wherein each of a hardness of the resin member (Ha), a hardness of the resin adhesive layer (Hb), a hardness of the rubber adhesive layer (Hc), and a hardness of the rubber member (Hd) is from 100 MPa to 600 MPa.
Two-wheeled vehicle tire
A two-wheeled vehicle tire includes a carcass extending between bead cores each disposed in a respective one of bead portions through a tread portion and sidewall portions, the carcass including at least one carcass ply having a ply main portion extending between the bead cores through the tread portion, and a bead apex rubber extending radially outwardly from each bead core. The bead apex rubber includes a first rubber portion arranged adjacent to the ply main portion, and a second rubber portion arranged axially outwardly of the first rubber portion, the first rubber portion has a first end positioning radially outermost thereof, the second rubber portion has a second end positioning radially outermost thereof, and the first end is located radially outwardly of the second end.
Tread for an aircraft tire
Airplane tire tread (2), having an axial width L, comprises a middle part (3) having an axial width L.sub.C at least equal to 50% and at most equal to 80% of L and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of the middle part (3), each having an axial width (L.sub.S1, L.sub.S2) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer comprises ethylene units and diene units comprising a carbon-carbon double bond, which units are distributed randomly within the first diene elastomer, the ethylene units representing at least 50 mol % of all the monomer units of the first diene elastomer.
VEHICLE PNEUMATIC TYRE AND RUBBER MIXTURE FOR A TREAD
A pneumatic vehicle tire in radial design that is a summer tire or all-season tire, with a profiled tread comprising rows of profile blocks and/or profile ribs running around the tire in circumferential direction, wherein the total number of sipes within each row of profile blocks and/or profile ribs is not more than 150, wherein the tread is in the form of a single layer or multiple layers with a radially outermost tread layer that extends at least over the width of the ground contact area, and wherein the profile depth of the tread is up to 6.5 mm. The tread or its radially outermost tread layer consists of a rubber material with a Shore A hardness at room temperature in accordance with DIN ISO 7619-1 of 40 ShA to 55 ShA.
Tire
A tire having a tire frame, the tire frame comprising a thermoplastic elastomer as a resin material, and the thermoplastic elastomer having a value of orientation f, as measured by a small angle X-ray scattering method, of from −0.08 to 0.08.
Tread for an aircraft tire
An aeroplane tire, and, in particular, the tread thereof. The tread (2), having an axial width L, comprises a middle part (3) having an axial width L.sub.C at least equal to 50% and at most equal to 80% of the axial width L of the tread and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of the middle part (3), each having an axial width (L.sub.S1, L.sub.S2) at least equal to 10% and at most equal to 25% of the axial width L of the tread and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first diene elastomer, a reinforcing filler and a crosslinking system, which first diene elastomer is a terpolymer of ethylene, of an α-olefin and of a non-conjugated diene.
Tread for an aircraft tire
Airplane tire tread (2), having an axial width L, comprises a middle part (3) having an axial width L.sub.C between 50% and 80% of L and composed of a middle rubber composition, and two lateral parts (41, 42), positioned axially on either side of middle part (3), each having an axial width (L.sub.S1, L.sub.S2) between 10% and 25% of L and each composed of a lateral rubber composition. The middle rubber composition comprises at least 50 phr of a first middle part diene elastomer (“FMPDE”), at most 70 phr of a middle part reinforcing filler (“MPRF”) and a crosslinking system. FMPDE is a terpolymer of ethylene, of an α-olefin and of a non-conjugated diene. The FLPDE lateral rubber composition of each lateral part comprises at least 50 phr of a first lateral part diene elastomer, a lateral part reinforcing filler content at least equal to the MPRF and a crosslinking system. The FLPDE is a terpolymer of ethylene, of an α-olefin and of a non-conjugated diene.
TIRE
A tire comprises a tread portion. The tread portion is provided with a sipe. The sipe comprises four sipe segments: a first sipe segment, a second sipe segment, a third sipe segment, and a fourth sipe segment. At least one of the first sipe segment and the third sipe segment comprises an oscillated portion which extends in the radial direction of the tire, while oscillating in a lateral direction orthogonal to the length direction of the sipe in a cross section of the sipe orthogonal to the length direction. Each of the first sipe segment and the third sipe segment comprises the oscillated portion including an oscillating-start portion, and the oscillating-start portion of the first sipe segment is inclined with respect to the tire radial direction in the same direction as the oscillating-start portion of the third sipe segment.
TIRE
A tire includes a tread portion bound with an intended tire rotational direction. The tread portion is provided a plurality of blocks. Each of the blocks includes a first ground contact edge, which is a ground contact edge on a heel side in the tire rotational direction, and a second ground contact edge, which is the ground contact edge on a toe side in the tire rotational direction. A second tire radius which is a tire radius at the second ground contact edge is larger than a first tire radius which is the tire radius at the first ground contact edge.