3109results about "Pneumatic tyre reinforcements" patented technology

The invention discloses a tire with a continuously woven carcass ply, and relates to the technical field of tires. Comprising a steel wire ring framework, a bead filler part, a sidewall rubber layer, a continuous woven carcass ply, a belted layer, a tread upper layer, a tread lower layer, a tire shoulder pad rubber layer, an airtight layer, a steel ring wrapping cloth layer and a seam allowance rubber protection layer, the tire side rubber layer, the belted layer, the tire shoulder pad rubber layer and the steel ring wrapping cloth layer are all arranged on the outer side of the continuously woven tire body cord fabric layer and are all attached to the continuously woven tire body cord fabric layer, and the continuously woven tire body cord fabric layer is an endpoint-free tire body cord fabric cylinder formed by continuously weaving cord threads or rubber-coated cord threads in a zigzag mode. The bead ring skeleton and at least a portion of the apex member are located inside the continuously woven carcass ply structure. The tire body cord thread cutting point generated in the manufacturing process of a traditional tire body cord fabric layer can be eliminated, and the technical problems that the rigidity at the cutting point of an existing tire body cord fabric layer is discontinuous and the bonding defect of a tire body cord thread and a rubber interface exists are solved.

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.

The present invention addresses the problem of providing a tire in which deterioration in steering stability is suppressed even when polyamide fibers having a low amide density are used. Provided is a tire which is the solution to the foregoing problem and which is characterized in that: the tire comprises a carcass layer, belt layers (60A, 60B), and a belt reinforcement layer; the carcass layer and the belt reinforcement layer include reinforcement cords; the reinforcement cords of at least one of the carcass layer and the belt reinforcement layer include polyamide fibers having an amide density of 14.0 or less; and (i) angles (α, β) formed by the reinforcement cords (60A-1, 60B-1) of the belt layers (60A, 60B) with respect to the tire circumferential direction (DC) are 25 degrees to 65 degrees, inclusive, or (ii) angles formed by the reinforcement cords of the carcass layer with respect to the tire circumferential direction are 70 degrees or more and less than 90 degrees.

The present invention relates to an elastomeric laminate comprising at least two adjacent layers, wherein: the rubber composition constituting the first layer is based on 20 phr to 100 phr of at least one copolymer comprising ethylene units and 1,3-diene units of formula CH2=CR-CH=CH2, the ethylene units in the copolymer representing more than 50 mol% of the copolymer monomer units, and the symbol R represents a hydrocarbon chain having 3 to 20 carbon atoms, 0 phr to 80 phr of at least one diene elastomer having a diene unit weight concentration greater than 50%, 10 phr to 100 phr of a plasticizing system comprising at least one plasticizing resin having a glass transition temperature higher than 20°C and / or at least one plasticizer which is liquid at 23°C, and a reinforcing filler, and a crosslinking system; the rubber composition constituting the second layer is based on a diene elastomer having a diene unit weight concentration greater than 50% and a crosslinking system. The present invention also relates to a rubber article, in particular a pneumatic or non-pneumatic tire, comprising such a laminate.

The present invention addresses the problem of providing a cord capable of reducing environmental load while maintaining physical properties at high temperatures. In order to solve the problem, provided is a hybrid cord characterized by comprising polyamide 4, 10 fibers and fibers A having an elongation at break of 7% or less.

A computing system uses a vehicle monitoring system to detect a change in at least one condition external to the vehicle. The system determines, using the vehicle monitoring system, whether a driver of the vehicle is using a computing device. Based on determining that the driver is using the computing device, the system outputs an alert.

To provide a tire with improved durability performance.SOLUTION: A tire includes a tread, side walls, clinches, a pair of bead parts in each of which a bead core is embedded; an inner liner; and at least one tire member having a steel cord. The at least one tire member having the steel cord includes at least one layer ply having a steel cord of a 1×4 structure.SELECTED DRAWING: None

Pneumatic tire with an aspect ratio of 35% to 70%, Y is defined by the following formula: Y = (B-16) / A, wherein when the tread of the tire (the tire is mounted on a normal rim and is in a normal state with normal internal pressure and no load) is pressed against a flat surface under a normal load, A is the total width of the tire (mm), B is the width of the buffer layer of the tire (mm), and the range of the Y value varies according to the aspect ratio as follows: when the aspect ratio is greater than 35% and less than 40%, Y is less than 0.80; when the aspect ratio is greater than 40% and less than 45%, Y is less than 0.79; when the aspect ratio is greater than 40% and less than 45%, Y is less than 0.80 .... When the flatness is 45% or more and less than 50%, Y is less than 0.78; when the flatness is 50% or more and less than 55%, Y is less than 0.77; when the flatness is 55% or more and less than 60%, Y is less than 0.75; when the flatness is 60% or more and less than 65%, Y is less than 0.72; when the flatness is 65% or more and less than 70%, Y is less than 0.69; when the flatness is 70%, Y is less than 0.67; wherein, the elongation at break of the tread rubber composition measured under the conditions of 14.0m / tensile rate and 100°C atmosphere is 180% or more.

The invention discloses an all-steel truck radial tire, and relates to the technical field of radial tires. The outer contour section width SW, the lower side plate height LSH and the tire bead part positioning line width TTZ of the tire are optimally designed, and under the constraint of given technical parameters, the stress deformation of the tire bead part of the tire is small; meanwhile, in the structural design, the tire body cord fabric endpoint height HSC, the chafer outer side endpoint height HWC.O, the chafer inner side endpoint height HWC.I, the hard apex upper endpoint height HHBF, a tire bead part integral reinforcing layer arranged among the tire body cord fabric, the apex and the steel wire ring, and a tire bead part integral reinforcing layer arranged among the tire body cord fabric, the apex and the steel wire ring are matched; the tire body cord fabric and the chafer inner side reinforcing layer arranged between the tire body cord fabric and the inner side end point of the chafer are optimally designed, and new requirements on the strength of the reinforcing layer and the strength and modulus of cord thread coating rubber are met; deformation and modulus matching of the soft apex and the hard apex are deeply explored and verified on formula materials, so that stress deformation of the whole tire bead part is reduced, early-stage cracks at a tire body cord fabric end point, an outer / inner side end point of a tire chafer, an upper end point of the hard apex and a widest position of a steel wire ring are reduced, and the service life of the tire is effectively prolonged.

A tire (1, 10) is disclosed comprising a tread (20) and a belt portion (100) located radially below the tread. The tread (20) has two shoulder portions, each shoulder portion comprising a shoulder groove (21). The belt portion (100) comprises a pair of working belts (110, 130) and a relatively low angle belt (120), wherein the relatively low angle belt (120) has reinforcement elements making an angle of less than 5° with a circumferential direction of the tire (1, 10), and wherein the relatively low angle belt (120) comprises a first layer (121) and one or more further layers (122, 123). The first layer (120) of the relatively low angle belt (120) extends over at least 70% of the axial width of the axially largest working belt (110, 130). Each layer of the one or more further layers (122, 123) of the relatively low angle belt (120) is arranged radially below one of the shoulder grooves (21) and extends over at most 50% of the axial width of the axially largest working belt (110, 130).

Provided is a tire comprising at least one reinforcement layer in a tread portion, wherein the reinforcement layer includes a reinforcement element 2 consisting of a plurality of metal filaments 1 that are aligned in a single row without being twisted together, and crosslinked rubber 3 coating the reinforcement element 2, and the metal that constitutes the metal filaments 1 is steel whose surface is coated with a ternary plating of copper, zinc, and iron. This tire has a reinforcement layer with excellent adhesive durability between the steel cord and its coating crosslinked rubber and high fuel efficiency.

The invention provides a low-rolling-resistance and high-wet-grabbing pneumatic radial tire, which belongs to the technical field of tires, and comprises a tread and a circumferential groove extending along the circumferential direction of the tread, the contour between the highest point of the tread and the end point of one side of the tread is sequentially divided into a first arc section, a second arc section, a third arc section and a fourth arc section, the radius TR1 of the first section of arc, the radius TR2 of the second section of arc, the radius TR3 of the third section of arc and the radius TR4 of the fourth section of arc meet the following relation: TR1: TR2: TR3: TR4 = 2.3: 1.9: 1.6: 1; the number of the circumferential grooves is five, the five circumferential grooves sequentially comprise a central water-drop-shaped pattern groove, two pattern grooves close to the center and two shoulder water-drop-shaped pattern grooves from the center to the two sides of the tread, and the central water-drop-shaped pattern groove and the shoulder water-drop-shaped pattern grooves are grooves which are self-closed in a loading state; according to the invention, the tire structure design, the pattern design and the formula design are optimized, so that the tire has the ultimate durability, low rolling resistance and full-life-cycle high-wet-grip performance at the same time.

A computing system can wirelessly connect with a computing device of a driver of a vehicle while the driver is within the vehicle. The system can determine, based on being wirelessly connected with the computing device of the driver, that the driver of the vehicle is using the computing device, and using a vehicle monitoring system of the vehicle while the vehicle is moving, the system can process sensor data from at least one sensor of the vehicle monitoring system to detect an object ahead of the vehicle. Based on detecting the object and determining that the driver is using the computing device, the system can output an alert to the computing device of the driver.

To provide a tire 2 that can suppress generation of peeling-off of a tread while suppressing increase in rolling resistance.SOLUTION: A tire 2 includes a tread 4 and a belt 20. An end BE of a base layer 34 of the tread 4 is positioned on an axial direction inner side of an end 20E of the belt 20. The tread 4 includes a plurality of circumferential grooves 30, and a plurality of land parts 32 are constituted by them. The plurality of land parts 32 include crown land parts 32c, shoulder land parts 32s and middle land parts 32m. A cap layer ratio ARc of the crown land part 32c is 1.5 or more and 3.5 or less. A cap layer ratio ARm of the middle land part 32m is equal to or more than the cap layer ratio ARc of the crown land part 32c. A cap layer ratio ARs of the shoulder land part 32s is larger than the cap layer ratio ARm of the middle land part 32m, and is 5.0 or more and 9.5 or less.SELECTED DRAWING: Figure 6

To continuously reduce electric resistance of a tire.SOLUTION: A tire includes a pair of bead parts 10 where a bead core 11 and a bead part rubber 30 having volume resistivity of less than 1×10^8[Ω cm] are arranged, at least one carcass layer 13 which is bridged between the pair of bead parts 10 and has volume resistivity of 1×10^8[Ω cm] or more, a belt layer 14 which is arranged outside in a tire radial direction of the carcass layer 13, a tread rubber 15 which is arranged outside in the tire radial direction of the belt layer 14, and a conductive member 50 which is formed into a sheet shape and continuously extends to the bead parts 10 from at least a position overlapped with an end 144 in a tire width direction of the belt layer 14 on a tire inner surface 25, and has volume resistivity of less than 1×10^8[Ω cm], wherein the conductive member 50 has an inside end 51 in the tire radial direction covered with the bead part rubber 30 arranged in the bead part 10.SELECTED DRAWING: Figure 4

To provide a pneumatic tire with a wide and small diameter capable of improving riding comfort performance.SOLUTION: Provided is a pneumatic tire 1 comprising a tread part 2 that includes a tread rubber 2G forming a ground contact surface 2s and a belt layer 7 disposed inwardly in a tire radial direction of the tread rubber 2G. The outer diameter of the pneumatic tire 1 is 350 to 600 mm, and the rim width RW of a rim is 78% to 99% of a tire cross-sectional width SW. The ground contact surface 2s is divided into a plurality of land parts 9 including a shoulder land part 9B, by circumferential grooves 8 provided in the tread part 2. The shoulder land part 9B has an inner end edge 9e located inside in a tire axial direction from an outer end part 7e of the belt layer 7. A distance LA between the inner end edge 9e and the outer end part 7e is 10% to 30% of the maximum belt width WA of the belt layer 7. The hardness Hs of the tread rubber 2G satisfies mathematical formula (1) based on the distance LA and the tire cross-sectional width SW.SELECTED DRAWING: Figure 1

Provided is a pneumatic radial tire for passenger vehicles in which the cross-sectional width SW of the tire and the outer diameter OD of the tire satisfy a predetermined relationship, and an end of the carcass (an end of a carcass turn-up portion when the carcass has the carcass turn-up portion) in one tire width-direction half that is on the inner side when the tire is mounted on a vehicle is located on the inner side in the tire radial direction than an end of the carcass turn-up portion in the other tire width-direction half that is on the outer side when the tire is mounted on a vehicle.

A computing system can wirelessly connect with a computing device of a driver of a vehicle while the driver is within the vehicle. The system can determine, based on being wirelessly connected with the computing device of the driver, that the driver of the vehicle is using the computing device, and using a vehicle monitoring system of the vehicle while the vehicle is moving, the system can process sensor data from at least one sensor of the vehicle monitoring system to detect an object ahead of the vehicle. Based on detecting the object and determining that the driver is using the computing device, the system can output an alert to the computing device of the driver.

In a pneumatic tire, a rim R has a rim diameter RD of 12 to 17 inches. A ratio SH / SW of a tire cross-sectional height SH to a tire cross-sectional width SW is 0.30 to 0.45. A ratio RW / SW of a rim width RW of the rim to the tire cross-sectional width SW is 0.78 to 0.99. A complex elastic modulus E* 1 (MPa) of a cap rubber layer 15 is larger than a complex elastic modulus E*2 (MPa) of a base rubber layer 16. In belt plies, a plurality of belt cords 7c having a bending stiffness M (g·cm) are arranged so as to have a number n of the belt cords per ply width of 5 cm. The complex elastic modulus E*1, the complex elastic modulus E*2, the bending stiffness M, and the number n satisfy a relationship of the following formula (1). M×n<E*1 / E*2×3000

A two-wheeled vehicle pneumatic tire having a tread, a tire carcass, tire sidewalls, and two bead regions with a bead protective strip. The tire carcass is formed from a first carcass inlay and a second carcass inlay. The second carcass inlay is arranged radially inwardly of the first carcass inlay, and extends from a crown region (17) of the two-wheeled vehicle pneumatic tire and terminates at a second carcass inlay end under the bead protective strip. The two-wheeled vehicle pneumatic tire provides improved puncture protection whilst maintaining good rolling resistance. This is achieved in that the first carcass inlay is guided with a first carcass inlay turn-up over the particular tire sidewall as far as under the tread to a first carcass inlay end, and terminates there at the first carcass inlay end.

The present disclosure relates to a tire cord. The tire cord includes a polyester drawn yarn containing recycled polyethylene terephthalate. The tire cord may exhibit excellent physical properties industrially required while including eco-friendly materials.

The invention discloses a low-rolling-resistance and high-abrasion truck radial tire, and relates to the technical field of tire design, the truck radial tire comprises a tire body, a tread, a tire body, a sidewall, a tire bead, a belted layer, a steel wire ring and apex, the relation of the outer contour of the tire body is h / D > = 1.2% and < = 5.2%, the radial height difference between the end point of the outer contour of the tread and the middle point of the outer contour of the tread is h, and the width of the tire body is 0.5 mm. The vertical distance from the widest end point position in the belted layer to the grounding contour is D, the relationship of the inner contour of the tire body is (Gs-h) / Gc is greater than or equal to 0.98 and less than or equal to 1.02, the vertical distance from the end point of the outer contour of the tread to the inner contour is Gs, and the vertical distance from the midpoint of the outer contour of the tread to the inner contour is Gc. The design scheme of the low-rolling-resistance and high-abrasion truck radial tire is obtained by starting from key design elements of the tire and considering the relation between the rolling resistance and the abrasion of the tire, more fuel oil can be saved, and the abrasion mileage is longer.

A metallic strength member rubberized with a sulfur-crosslinkable, essentially cobalt-free rubberization mixture, wherein the metallic strength member is a steel cord containing one or more filaments, wherein the filaments include a steel substrate filament and a coating that partly or completely covers the steel substrate filament, wherein the coating includes brass consisting of copper and zinc, and wherein the coating is enriched with iron in the form of particles having a size between 10 and 10 000 nm in the brass. In order to optimize vulcanization times, the rubberization mixture contains 0.5 to 3 phr of at least one sulfenimide accelerator and / or at least one dibenzylamine-based sulfenamide accelerator.

To provide a pneumatic tire which can balance improvement of wandering performance with suppressing of rolling resistance.SOLUTION: A tread 30 of a pneumatic tire comprises: a tread surface 36 which contacts with a road surface; and a belt 31 which is embedded in the tread 30. A land 70 of the tread surface 36 includes a shoulder land 72 which is arranged at an end part of the tread surface 36 in a tire axial direction. A major groove 80 of the tread surface 36 includes a second major groove 82 as a shoulder major groove which is adjacent to the shoulder land 72 at an inner side in the tire axial direction. The shoulder land 72 includes a plurality of slits 77 which are extended in a direction crossing the tire circumferential direction and arrayed in the tire circumferential direction. When ground width of the tread surface 36 is C and width of the belt 31 is B, a ratio B / C is 105% or more and 110% or less at the time of 70% load of the maximum load based on the tire standard JATMA. An end 77a of the slit 77 at an inner side in the tire axial direction is not communicated with the second major groove 82 and is terminated in the shoulder land 72.SELECTED DRAWING: Figure 2

To provide a pneumatic tire which can balance improvement of wandering performance with suppressing of rolling resistance.SOLUTION: A pneumatic tire includes a tread 30. The tread 30 comprises: a tread surface 36 which contacts with a road surface; a plurality of major grooves 80 which are formed on the tread surface 36 and extend in a tire circumferential direction; and a belt 31 which is embedded in the tread 30. When ground width of the tread surface 36 is C and width of the belt 31 is B, a ratio B / C is 105% or more and 110% or less at the time of 70% load of the maximum load based on the tire standard JATMA. When a distance between a surface 33a of the belt 31 at an outer side in a tire radial direction and the tread surface 36 is T1 and a distance between the surface 33a of the belt 31 at the outer side in the tire radial direction and the bottom part of the major groove 80 is T2, a ratio T1 / T2 is 3.60 or more and 3.80 or less.SELECTED DRAWING: Figure 1

A tire fitted with a transponder comprises: a crown comprising a crown reinforcement having an axial end at each of its edges, connected at each of its axial ends by a sidewall to a bead having an interior end; a carcass reinforcement layer formed of parallel reinforcers, which is anchored in each bead around a bead wire to form a main part and a turn-up; the transponder comprising a core defining a first axis, a first cover filament helically twisted around the core and an electrical insulation device; and the first cover filament comprising at least two conductive filamentary elements galvanically connected to an electronic chip comprising a radiofrequency transmission-reception component. The thickness of elastomeric compound separating the outer cover filament, located radially outermost with respect to the first axis, and the reinforcements is greater than 0.5 millimeters.

Shape memory alloy elements (“SMAs”) are bonded, encased, or encapsulated with one or more polymers to form an integrated component with unique elastic, pseudoelastic, and load-bearing properties.

A steel cord having a 1 * 4 structure in which four single wires are twisted together, in which the diameter of the single wires is 0.15-0.20 mm, and in a cross-section perpendicular to the long dimension of the steel cord when embedded in rubber, the diameter of the single wires is less than or equal to 0.15 mm and less than or equal to 0.20 mm, and the diameter of the single wires is less than or equal to 0.20 mm, in the cross-section perpendicular to the long dimension of the steel cord, and the diameter of the single wires is less than or equal to 0.20 mm. A composite region is defined as a region surrounded by a common tangent line between adjacent single wires that is tangent to the outer surface of the steel cord and a line segment connecting the centers of the adjacent single wires along the outer surface of the steel cord, and the area of the composite region is defined as an effective cross-sectional area. The effective cross-sectional area is from 0.099 mm < 2 > to 0.224 mm < 2 > (inclusive).