Patent classifications
B60C13/001
NON-PNEUMATIC TIRE HAVING MOLDED SIDEWALL COVER
A non-pneumatic tire includes a lower ring having a first diameter and an upper ring having a second diameter greater than the first diameter. The upper ring is substantially coaxial with the lower ring. The non-pneumatic tire further includes support structure extending between the lower ring and the upper ring and a tread layer formed of a rubber material. The non-pneumatic tire also has a sidewall formed of the rubber material and extending seamlessly from the tread layer on a first side of the non-pneumatic tire.
PNEUMATIC TIRE
The disclosed pneumatic tire includes a marking portion on an outer surface of a tire side portion, the marking portion including one or more markings that include a letter, a symbol, or a graphic. In a side view of the tire, the marking portion has a curved shape, linear ridges are arranged in the one or more markings of the marking portion, and all of the ridges in the marking portion are parallel.
PNEUMATIC TIRE
A pneumatic tire has a first region including a plurality of first zones disposed adjacently to each other in a tire circumferential direction, each first zone being formed in a closed region and extending in a first extending direction; and a second region which is disposed adjacently to the first region in a tire radial direction and includes a plurality of second zones, each second zone being disposed adjacently to each other in a tire circumferential direction, being formed in a closed region and extending in a second extending direction. On an end portion of the first region disposed adjacently to the second region, valley portions are formed by the first zones disposed adjacently to each other in the tire circumferential direction. Each of the second zones has a portion disposed adjacently to the first region and configured to mate with each of the valley portions.
PNEUMATIC TIRE
In a pneumatic tire including a decorative portion on an outer surface of a sidewall portion, the decorative portion includes a plurality of decorative elements arranged in a step-like manner along reference lines parallel to each other, each of the decorative elements forms a hexagon in which three regions forming a parallelogram are disposed sharing adjacent sides of the three regions, a plurality of ridges extending in the same direction is formed in each of the regions of each of the decorative elements, and inclination directions of the ridges are different from one another in the three regions forming each of the decorative elements.
TIRE AND RUBBER COMPOSITION
The present disclosure provides a tire in which cracks or other defects on the surface of a tire component can be reduced to provide an excellent market life. A tire including a rubber layer and satisfying the following relationships (1) and (2): E1/E2×100>25 (1); and E1/E2×T×100>50 (2) wherein E1 denotes the fracture energy (MPa.Math.%) determined by cutting a No. 7 dumbbell-shaped specimen cut out of the rubber layer, heat-treating the specimen with the cut sections attached to each other at 170° C. for 12 minutes, and then stretching and deforming the specimen; E2 denotes the fracture energy (MPa.Math.%) determined by heat-treating a No. 7 dumbbell-shaped specimen cut out of the rubber layer at 170° C. for 12 minutes and then stretching and deforming the specimen; and T denotes the thickness (mm) of the rubber layer.
Wheel or tire with illuminable feature
Tire or wheel for use on a vehicle, machine, equipment, toy or the like. The tire or wheel has an illuminable feature including at least one optical fiber.
COLOR RUBBER COMPOSITION FOR TIRE, AND TIRE
A color rubber composition for tires according to an embodiment contains a rubber component, a pigment other than black or white, a petroleum wax, and a white filler. The petroleum wax has a normal/iso ratio (mass ratio) of 70/30 to 90/10. The carbon number distribution for iso components in the whole petroleum wax is 1.0% or less for 25 or less carbon atoms, 4.0 to 8.0% for 26 to 32 carbon atoms, 5.0 to 15.0% for 33 to 44 carbon atoms, and 1.0% or more for 45 or more carbon atoms. The carbon number distribution for normal components in the whole petroleum wax is 5.0 to 18.0% for 25 or less carbon atoms, 40.0 to 48.0% for 26 to 32 carbon atoms, 15.0 to 27.5% for 33 to 44 carbon atoms, and 2.0% or more for 45 or more carbon atoms.
Tyre for vehicle wheels
The present invention relates to a tyre for vehicle wheels comprising at least one external structural element comprising at least one external structural element comprising a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising (i) at least one diene elastomeric polymer, and (ii) a system for protection against ozone substantially free of polymeric static protective agents which essentially consists of at least one phenolic antioxidant in an amount substantially equal to or higher than 3 phr.
Tire
A tire that includes a decorative pattern formed on a surface of a sidewall portion. The decorative pattern is formed such that a plurality of ridges that extend in a tire radial direction are aligned in a tire circumferential direction so as to form gaps. A transverse cross-section of each ridge is tapered so as to gradually reduce a length along the surface such that the greater a distance from the surface is, the less the length along the surface is. The decorative pattern is structured so as to satisfy expressions (1) and (2):
20≤A≤40 (1)
0.15≤C≤0.25 (2)
wherein A represents a taper angle (degree) of the ridge, and C represents a minimum length (mm) of each gap measured along the surface.
TIRE CURING MOLD HAVING A REMOVABLE INSERT, AND ASSOCIATED MANUFACTURING METHOD
A mold (20) for curing a tire comprises at least one body, such as a shell (21) or a lining, and at least one insert (22) mounted removably in a housing of the body, the molding surface (23) of the body having a first texture pattern (24), the molding surface (25) of the insert having a marking pattern (26). The molding surface of the insert also has a second texture pattern (27) chosen such that the surface molded by the second texture pattern contrasts with the surface molded by the marking pattern (26), and contrasts barely, if at all, with the surface molded by the first texture pattern (24).