197results about "Without separate inflatable inserts" patented technology

The present invention addresses the problem of providing a pneumatic tire in which a reduction in tire performance is mitigated despite using polyamide fibers with low amide density. The solution is a pneumatic tire characterized by comprising a carcass layer (50), belt layers (60A, 60B), and a belt reinforcement layer (70A), wherein reinforcing cords (50-1, 70A-1) in the carcass layer (50) and / or the belt reinforcement layer (70A) contains polyamide fibers having an amide density of 14.0 or less, and (i) when a gauge thickness A from the outer circumferential surface on the tire inner-surface side of the reinforcing cords (50-1) of the carcass layer (50) to the tire inner surface is measured at 100 equally spaced points, the average of the gauge thickness A is 1.5 mm or less, or (ii) when a gauge thickness D from the outer circumferential surface on the tire outer-surface side of the reinforcing cords (70A-1) of the belt reinforcement layer (70A) to the tire outer surface is measured at 100 equally spaced points, the gauge thickness D is 6.0 mm or less at 80% of the measurement points or more.

A pneumatic tire 1 includes a tread portion 2, a pair of bead portions 4, a carcass 6 extending on and between the pair of bead portions 4, a reinforcing layer 7 disposed outward of the carcass 6 in a tire radial direction in the tread portion 2, and a wireless tag 8 disposed inward of the carcass 6 in the tire radial direction in the tread portion 2. The reinforcing layer 7 includes at least one reinforcing ply 7A in which reinforcing cords 7a are arranged. The wireless tag 8 includes an electronic component body 9 that defines a longitudinal direction D, and an antenna portion 10 helically wound around the electronic component body 9 along the longitudinal direction D. The longitudinal direction D of the wireless tag 8 intersects all of the reinforcing cords 7a.

To provide a rubber composition and a tire excellent in overall performance of hardness and crack growth resistance.SOLUTION: The rubber composition comprises a rubber ingredient containing a butyl-based rubber, a cyclic amine having double bonds in the ring, and carbon black having a 24M4DBP oil absorption of 170ml / 100g or more.SELECTED DRAWING: None

A pneumatic tire (10) is disclosed comprising a carcass (16), an air barrier layer (24) and a puncture resistant layer (20, 20b). In one aspect, the puncture resistant layer (20, 20b) is located adjacent to the carcass (16) and the puncture resistant layer (20, 20b) has a post cure tack value with the carcass (16) of less than 50 N as measured at normal inflation pressure in accordance with ASTM D624-00 - Type C configuration. In another aspect, the puncture resistant layer (20, 20b) is located adjacent to the air barrier layer (24) and the puncture resistant layer (20, 20b) has a post cure tack value with the air barrier layer (24) of less than 50 N as measured at normal inflation pressure in accordance with ASTM D624-00 - Type C configuration.

A tire comprising an inner liner and insulation that contacts the inner liner on an outer surface of the inner liner in a tire radial direction, the insulation is made up of a rubber compound that includes recovered carbon black, where an air permeability coefficient of a rubber composition forming the inner liner is less than 18 × 10 -11 cm 3 · cm / (cm 2 · s · cmHg) is, where the thickness of the inner liner on a tire equator plane is 1.5 mm or less, and where the loss tangent at 70 °C, 70 °C tanδ, of a complex of the insulation and the inner liner is 0.22 or less.

The present invention provides a tire rubber composition that has excellent resistance to ozone, and high retention rates for elongation at break (EB) and tensile strength (TB) after aging. This tire rubber composition is characterized by including a rubber component, an amine-based antioxidant represented by prescribed general formula (1), and a quinoline-based antioxidant, wherein the amine-based antioxidant content is 0.1 to 11 parts by mass relative to 100 parts by mass of the rubber component, and the quinoline-based antioxidant content is 0.1 to 0.95 parts by mass relative to 100 parts by mass of the rubber component.

A tire has at least an electrically-conductive rubber. The electrically-conductive rubber has a contacting portion provided at a position contacting a rim.

An assembly (1) for a tire comprises: a first structure (10) formed by first cord elements (15), a second structure (12) formed by second cord elements (16), a bearing structure (14) comprising bearing cord elements (17) linking the first cord elements (15) to the first structure (10) and the second cord elements (16) of the second structure (12), and at least one cord securing element (18) fixed to the first cord elements (15) and to the second cord elements (16), said securing element (18) exhibiting an elongation at rupture at least equal to a minimum elongation greater than or equal to the ratio (A1) between a conformation height (h) of the assembly (1) and the sum of a thickness (e1) of the first structure (10), of a thickness (e2) of the second structure (12) and of a lock length (E).

A pneumatic tire of the present invention includes a tread portion, sidewall portions, bead portions, a carcass, and an inner liner layer. The carcass includes a plurality of carcass cords and a topping rubber layer. The inner liner layer includes a butyl rubber layer and an adhesive rubber layer. An electronic module is disposed between the carcass and the adhesive rubber layer. The electronic module includes an electronic component and a cover rubber. The cover rubber includes an inner layer and an outer layer. The electronic component is covered between the inner layer and the outer layer of the cover rubber.

This invention provides a tire that suppresses deterioration of rolling resistance, reduces electrical resistance, suppresses shrinkage of the unvulcanized rubber in the tread area that contacts the road surface, and improves high-speed durability. [Solution] The tire of the embodiment comprises Earth Red rubber 14, Cap Tread rubber 12 and Tie rubber 10. Earth Red rubber 14 has a specific surface area [m²] of carbon black CTAB adsorption. 2 The specific surface area × mass fraction (ET), which is the product of the [ / g] and mass fraction, is 20 to 40. The cap tread rubber 12 contains 80 parts by mass or more of silica per 100 parts by mass of rubber components, and the ratio of the mass of silica to the mass of filler is 90% or more. The tie rubber 10 is positioned on the inside of the tire relative to the carcass 4 and extends along the carcass 4 between a pair of bead cores 5. The specific surface area of ​​carbon black (A) and (B) of the tie rubber 10 with adsorption [m² 2 The product of [ / g] and mass fraction is between 20 and 40.

The invention relates to a method for producing a vehicle tyre blank (10), comprising the method steps of: a) producing or providing a starting composition, comprising: i) one or more rubber materials that are selected from the group consisting of isobutene-isoprene rubbers and halogenised isobutene-isoprene rubbers, and ii) one or more polyamides, b) extruding the starting composition at a temperature in the range from 220 to 290°C to obtain a mixed material, c) producing a flat material film (12) comprising the mixed material, d) contacting the flat material film (12) with a carcass layer (14) to produce a carcass laminate (16), wherein the carcass layer (14) comprises a plurality of reinforcing members (18) embedded in a vulcanisable rubber mixture, wherein the flat material film (12) is materially bonded to the carcass layer (14), and e) further processing the resulting carcass laminate (16) on a tyre assembly device and producing a vehicle tyre blank (10), wherein the vehicle tyre blank (10) comprises the carcass laminate (16).

Pneumatic tires, including: a tread section (1) extending in a circumferential direction of the tire and having a ring shape; a pair of sidewall sections (2) arranged on both sides of the running surface section (1); and a pair of bead sections (3) which are each arranged on an inner side of the pair of sidewall sections (2) in the tire radial direction; a transponder (20) embedded in one of the sidewall sections (2) extending in the circumferential direction of the tire, wherein the transponder (20) is covered with a coating layer (23), the relative dielectric constant of the coating layer (23) being lower than the relative dielectric constant of a peripheral rubber element adjacent to the coating layer (23), and the shortest distance (D) from an outer edge of the coating layer (23) to the transponder (20) in a tire meridian cross-section being 0.3 mm to 1.0 mm, wherein the total thickness (Gac) of the coating layer (23) is in the range of 1.5 mm to 3.5 mm.

This pneumatic tire (1) comprises: a tread part (2) having land portions (24) divided by a plurality of main grooves (22) formed in a tread surface (21); an inner liner (7) constituting a tire inner surface (7A) on an internal side of the tread part (2); and a mount member (10) which can mount an electrical device provided to the tire inner surface (7A). In the pneumatic tire (1), a complex modulus of elasticity E*1 of a rubber composition constituting the mount member (10) is greater than a complex modulus of elasticity E*2 of a rubber composition constituting the inner liner (7).

An inflation system for tubeless bicycle tires may include a valve, a sealant canister, a pump head, and / or a valve core adapter. The valve, sealant canister, and pump head may collectively facilitate sealant injection into a tire by a user. The valve has an external valve seat, and includes a valve body, a valve stem extending through the length of the valve body, and a retaining mechanism for the valve stem disposed interior to the valve body. The valve stem is configured to move relative to the valve body, such that a resilient seating surface disposed at a proximal end of the valve stem is displaced relative to a valve seat formed by an exterior surface of a proximal end of the valve body.

A tyre for vehicle wheels comprises a carcass structure comprising at least a carcass ply having a plurality of hybrid reinforcing cords (10). Each hybrid reinforcing cord (10) comprises at least two strands (20a, 20b) twisted together with a predetermined twisting pitch (P). Each of the at least two strands (20a, 20b) comprises at least one monofilament textile thread made of polyester fibre and at least one multifilament textile yarn (22a, 22b) comprising a plurality of textile filaments (23a, 23b) made of aramid fibre and / or polyester fibre and / or rayon fibre. In any cross section of the hybrid reinforcing cord (10), the at least one monofilament textile thread is at least partially embedded in the filaments (23a, 23b) of the at least one multifilament textile yarn (22a, 22b).

A pneumatic tire and method of production thereof are disclosed, wherein the tire comprises an innerliner, which constitutes an inner covering and has the purpose of holding air within the pneumatic tire. A joint of the innerliner confers a cylindrical shape to the innerliner. A radio frequency identification (RFID) label is applied to a radially inner surface of the innerliner which constitutes the innermost free surface of the pneumatic tire, and is completely arranged within a zone which is centered on the joint and which extends circumferentially starting with the joint for no more than 90° per side.

A tire (1) has improved handling and comprises a stiffening structure (7) comprising two stiffening elements (8), each extending continuously in the toroidal interior cavity (6) from a crown interface (81) connected to a radially inner face of the crown (23) to a bead interface (82) connected to an axially inner face of the bead (41). The stiffening structure (7) is distributed circumferentially around the entire circumference of the tire. The crown interface (81) is positioned, with respect to the equatorial plane (XZ), at an axial distance A at most equal to 0.45 times the axial width S and the bead interface (82) is positioned, with respect to a radially innermost point (I) of the axially inner face of the bead (41), at a radial distance B at least equal to 0.10 times the radial height H and at most equal to 0.5 times the radial height H.

A tire includes a tread portion; a pair of bead portions; a pair of sidewall portions, each of which extend between the tread portion and a respective bead portion; a carcass that extends from one bead portion to the other, through the sidewall portions and tread portion; and an inner surface that defines a tire cavity; wherein the tread portion comprises a belt disposed outside of the carcass in a radial direction of the tire, the belt comprising one or more belt plies that extend in an axial direction of the tire; wherein each sidewall portion comprises an intermediate layer arranged inward in the tire radial direction from the carcass, wherein each intermediate layer comprises an outer edge that overlaps the belt and an inner edge arranged in the sidewall portion or bead portion; wherein the tire further comprises an inner layer arranged inward in the tire radial direction from the tread portion, the inner layer having a thickness in the radial direction defined by the carcass and inner surface; and wherein the thickness of the inner layer is greater than a thickness between the carcass and inner surface in the sidewall portions.

To provide a tire that is excellent in integrated performance of steering stability and low-fuel economy at the time of running at high speed.SOLUTION: The tire comprises a rubber member constituted of a composition for the rubber member including a rubber constituent, a reinforcement filler containing carbon black and micro-fibrillated plant fiber. The carbon black includes regenerated carbon black. A ratio (Sm / Sc) of an average fiber diameter Sm (nm) of the micro-fibrillated plant fiber to an average primary particle size Sc (nm) of the carbon black is 10.0 or more. A ratio (Cc / Tc) of content Cc (mass parts) of the carbon black with respect to 100 mass parts of the rubber constituent to a thickness Tc (mm) of the rubber member is 3.5 or more.SELECTED DRAWING: None

A pneumatic tire (1) having: a carcass ply (3); two annular bead plies (4); annular tread (7); a liner (12); a pair of sidewalls (13); a pair of cover elements (14), each cover element surrounding a corresponding bead ply (4); a pair of scrapers (18), each scraper inserted between a corresponding edge (17) of the carcass ply (3) and the remainder of the carcass ply (3); and an electronic device applied to the inner surface of the liner (12) and arranged between the corresponding cover element (14) and the corresponding scraper (18). The electronic device is arranged at a first radial distance (R1) greater than 8 mm from the inner edge (15) of the corresponding cover element (14) and a second radial distance (R2) greater than 5 mm from the corresponding scraper (18). Alternatively, the electronic device is arranged at a first radial distance (R1) from the inner edge (15) of the corresponding cover element (14) and is radially aligned or radially partially stacked on the corresponding scraper (18). Alternatively, the electronic device is radially aligned or radially partially stacked on the corresponding cover element (14) and is arranged at a second radial distance (R2) from the corresponding scraper (18).

To provide a pneumatic tire improving on-ice performance while maintaining noise performance.SOLUTION: A pneumatic tire according to the present invention includes a tread part 2, a pair of side wall parts 3, a pair of bead parts 4, a carcass 6, and an inner rubber 10. The inner rubber 10 includes a first portion 11 extending with a first thickness t1 and a second portion 12 extending with a second thickness t2. The first thickness t1 is larger than the second thickness t2. A row of unit patterns 15 which appear repeatedly in a tire circumferential direction is formed on a ground contact surface 2s of the tread part 2. Pitch number P1 that is the number of the unit patterns 15 repeatedly appearing is 78-100.SELECTED DRAWING: Figure 1

The present invention provides a pneumatic tire and a method for manufacturing the same, in which a sound-absorbing material is adhered in a state in which a release agent is adhered to the inner surface of the tire, whereby both air retention and adhesiveness of the sound-absorbing material can be achieved without deteriorating tire productivity. A pneumatic tire vulcanized using a bladder provided with a coating layer formed from a release agent, in which a sound-absorbing material (6) is affixed to the inner surface of a tread portion (1) in the tire circumferential direction via an adhesive layer (7), and the silicon content of the release agent detected by X-ray fluorescence analysis at least in the affixed region of the sound-absorbing material (6) is 0.1-10.0 wt%.

The utility model discloses a two-piece type tubeless self-sealing wheel, characterized in that: including tubeless pneumatic tire body, with the hub of tire body adaptation connection, set up at tire body and the hub one side junction place's bead seat and the pneumatic rod of penetrating the hub, tire body's bead part integral moulding has a plurality of with the ring -like distribution of bead seat and the sealed connection of hub O -ring, the utility model discloses the setting of annular O -ring, O -ring and the hook portion of bead seat, the fixed part sealed surface of hub close adhesion, utilize the elastic deformation of O -ring to fill the gap, form sealed structure, simultaneously hook portion both sides edge resist O -ring circumference, force O -ring to produce radial elastic deformation, further enhance sealed density, effectively prevent tire body air leakage, satisfy the self -sealing demand of tubeless wheel, guarantee the pressure stability of wheel internal air cavity, improved the driving safety and stability, reduced the manufacturing and maintenance cost of inner tube, with good economic benefits.

A pneumatic tire is provided that can ensure sealing performance in low-temperature environments. In a pneumatic tire having a tread (1) that extends in a ring shape along the tire circumference, a pair of sidewall portions (2) disposed on both sides of the tread (1), and a pair of bead portions (4) disposed on the radially inner side of these sidewall portions (2), a sealant layer (20) is formed on the inner surface of the tire at the tread (1), such that the glass transition temperature of the sealant constituting the sealant layer (20) is below the glass transition temperature of the crown rubber material constituting the tread (1).

This disclosure provides compositions comprising carbon particles such as carbon black. The compositions may comprise rubber, for example, rubber usable in tires, and carbon black as a filler compound. The carbon black filler compound may comprise carbon black particles produced by thermal plasma methane pyrolysis and one or more binders configured to pelletize the carbon black particles.

A disclosed vehicle tire includes at least one resonator embedded within tire material. The resonator may be formed from three-dimensional monolithic carbonaceous growth and may detect electromagnetic pings from an interrogator device. The resonator may generate electromagnetic return signals indicating material state and environmental conditions at positions proximate to the resonator. The resonator may resonate at a first frequency when the material is in a first state or under first environmental conditions, and at a second frequency when in a second state or under second environmental conditions. The resonant frequency of the carbonaceous growth is based on physical characteristics of the material. This frequency-shifting capability enables real-time monitoring of tire conditions including deformation, wear, pressure changes, and environmental factors through passive electromagnetic sensing without requiring moving parts or complex electronics.