1152results about "Tyre beads" 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.

A wireless power reception system includes a power transmission device, a power reception device, a wheel with a rim, and a tire mounted on the rim. The tire includes a bead core and a bead filler, a tire width direction cross-sectional area S1 of the bead filler is one to eight times a tire width direction cross-sectional area S2 of the bead core, the power transmission device can transmit electric power with a frequency of 1000 kHz or less wirelessly, the power reception device is disposed farther inward in the tire radial direction than a tread portion of the tire, the power reception device receives the electric power wirelessly from the power transmission device in a state such that the power transmission device is located farther outward in the tire radial direction than the tire, and the tread portion of the tire is formed from a non-magnetic material.

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.

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 tire for a heavy load 2 capable of suppressing generation of SFC that affects appearance quality while maintaining durability.SOLUTION: A tire 2 includes a pair of beads 10, a carcass 12, a pair of side walls 6, a pair of chafers 8, and a tag member 22 including an RFID tag 54. The carcass 12 includes a carcass ply 36. The carcass ply 36 includes a ply body 38 and a pair of folding part 40. A plurality of recesses 62 are provided in a side surface 26 of the tire 2 including the maximum width position PW of the tire 2. An end PF of the folding part 40 and the plurality of recesses 62 overlap a boundary BS of the side wall 6 and the chafers 8. A first recess 62a is the recess located in the radially outermost side among the plurality of recesses 62. The RFID tag 54 is located in the radially inside of the maximum width position PW and located in the radially outside of the first recess 62a.SELECTED DRAWING: Figure 1

A tubeless tire insert comprising: an annular body having shock absorbing characteristics; a positioning system configured to vary a mean inner diameter of the insert, wherein the insert has a mean inner diameter X when the tire is being installed on the rim; and the insert has a mean inner diameter Y when the tire is installed on the rim, where X is greater than Y.

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 tubeless tire insert comprising: an annular body having shock absorbing characteristics; a positioning system configured to vary a mean inner diameter of the insert, wherein the insert has a mean inner diameter X when the tire is being installed on the rim; and the insert has a mean inner diameter Y when the tire is installed on the rim, where X is greater than Y.

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 utility model relates to the technical field of tire design, and particularly discloses a reinforced tire bead structure of a light truck tire, which is used for solving the problem of poor performance of a tire structure in the prior art. Comprising a lining, a carcass ply is attached to the outer side of the lining, hard bead filler corresponding to a steel wire ring is arranged on the outer side of the carcass ply, soft bead filler extending upwards is arranged on the outer side of the hard bead filler, the bottom of the carcass ply bypasses the steel wire ring and extends upwards to form a wrapping structure, and the outer end of the carcass ply is a carcass ply end point. According to the utility model, the structural form and material distribution of the tire bead part are innovatively designed, so that the durability of the tire bead part is improved; compared with the prior art, by applying the novel seam allowance reinforcing steel wire structure and the special rubber, changing the difference level between the tire body and the seam allowance reinforcing steel wires, isolating the end points of all steel wire components and the like, the deformation resistance of the tire bead position is improved, the damage to the tire bead caused by the stress concentration of the tire body turn-up end points is eliminated, and the overall durability of the tire bead position is improved.

Provided is a pneumatic tire capable of improving low fuel consumption performance by reducing air resistance during running. 【Solution means】The present invention is a pneumatic tire 1 including a ground contact surface 3a extending from a first ground contact end Te1 to a second ground contact end Te2, and a first side outer surface 6a extending inward in the tire radial direction from the first ground contact end Te1. The tread portion 3 has a first shoulder circumferential groove 4A and a first shoulder land portion 5A defined by the first shoulder circumferential groove 4A and the first ground contact end Te1. The ground contact surface 3a has a first virtual line L1, which is a tangent line at the intermediate position Pm in the tire axial direction of the first shoulder land portion 5A, having a first angle θ1 of 74 to 80° with respect to the tire radial direction. The first side outer surface 6a has a second virtual line L2, which is a tangent line at the first position P1, having a second angle θ2 of 36 to 40° with respect to the tire radial direction. The distance t in the tire radial direction between the first ground contact end Te1 and the tire equator C is 2% to 6% of the ground contact width TW.

The invention belongs to the technical field of tire manufacturing, and particularly discloses application of a SiO2 / C composite material in preparation of an upper apex. Specifically, the upper apex disclosed by the invention comprises 100 parts of natural rubber; 0-40 parts of a filler; 10 to 60 parts of a SiO2 / C composite material; 5-10 parts of an activator; 0.5 to 4 parts of tackifying resin; 3-6 parts of a vulcanizing agent; and 2-5 parts of an anti-aging agent. The SiO2 / C composite material can effectively replace white carbon black or carbon black when being used in the preparation process of apex on a tire, and the tire prepared based on the SiO2 / C composite material has low heat generation and excellent fatigue resistance.

A pneumatic tire comprises: a tread portion having a ground contacting surface; a sidewall portions having an outer surface; a bead portions; a carcass extending between the bead portions; and an inner rubber extending between bead portions. The inner rubber comprises a first portion extending through the tread portion with a first thickness t1, and a second portion extending through the sidewall portion with a second thickness t2. The first thickness t1 is more than the second thickness t2. In a meridian cross section of the tire under its normal state, when a first reference point (Pb1), a second reference point (Pb2), a shoulder reference point (Ps), a reference line segment (Lb), and a shoulder line segment (Ls) are defined, then a length (L1) of the shoulder line segment (Ls) is 85.9% to 89.3% of a length (L2) of the reference line segment (Lb).

Disclosed are various embodiments for integrating one or more sensing device(s) into a tire during a tire manufacturing process. In one example, the sensor device includes an electronic device (e.g., a sensing and / or energy harvesting device), a communication device, or any combination thereof. The sensing and / or energy harvesting device is positioned between a chafer and a ply of a tire, at an axially outward side of the ply, wherein the chafer is configured to form a seal with a rim flange of a wheel. The communication device is positioned between a liner and the ply at an axially inward side of the ply. In some examples, a connector is connected between the sensing and / or energy harvesting device and the communication device.

To provide a pneumatic tire of which durability is improved and weight saving can be achieved.SOLUTION: In a pneumatic tire 10, a carcass ply 1 of one or more layers, in which cut cords are arranged in parallel, is toroidally arranged, and one or more belt layers 2, in which the cut cords are arranged in parallel, are arranged on a tire radial direction outer side of a crown part of the carcass ply 1. In the pneumatic tire 10, an auxiliary reinforcement layer 4 containing a copolymer having a conjugated diene unit and a non-conjugated olefin unit is arranged adjacent to the vicinity of a cord cut end of at least one layer of the carcass ply 1 and the belt layer 2 or the vicinity a tire width direction outer side end of a chafer located outside the carcass ply 1 in a bead part 5.SELECTED DRAWING: Figure 1

A tubeless tire insert comprising: an annular body having shock absorbing characteristics; a positioning system configured to vary a mean inner diameter of the insert, wherein the insert has a mean inner diameter X when the tire is being installed on the rim; and the insert has a mean inner diameter Y when the tire is installed on the rim, where X is greater than Y.

The invention provides a nose type solid tire. The nose type solid tire comprises a base layer part; a plurality of steel wires are distributed at intervals along the axial direction of the tire; the base layer part comprises a bead part, and the bead part is matched with a rim; the bead part comprises a bead nose edge side, a bead non-nose edge side and a bead bottom connected between the bead nose edge side and the bead non-nose edge side; the bead nose edge side comprises a nose edge body area and a nose edge deflection area, and the outline of the nose edge deflection area is formed by an arc line; the axial distance from the axial outer end of the nose edge side of the bead to the central plane of the tire is equal to the axial distance from the axial outer end of the non-nose edge side of the bead to the central plane of the tire; the bead bottom at least comprises a bead bottom first area, a bead bottom second area and a bead bottom third area, and an inner diameter difference exists between the bead bottom first area and the bead bottom second area; the radial outer side of the third area of the bead bottom is not provided with steel wires; the axial distances of the plurality of steel wires arranged at the bottom of the bead are unequal; the steel wires on the nose edge side of the bead are arranged in a manner of deviating to the center of the tire.

The present invention addresses the problem of providing: a recycled carbon black capable of maintaining the physical properties of a rubber composition even when reused in the rubber composition; and a mixture of the recycled carbon black and a liquid polymer. The means for solving the problem is: a recycled carbon black obtained by the decomposition of a crosslinked rubber containing a diene-based rubber and carbon black, the recycled carbon black being characterized in that the proportion of aggregates having a diameter of 5 μm or more, as determined using a particle size distribution measurement device in a state in which recycled carbon black is dispersed by ultrasonic waves in a toluene solvent, is 50 vol% or less; and a mixture of the recycled carbon black and a liquid polymer, the mixture being characterized in that the weight average molecular weight of the liquid polymer is 300,000 or less.

Provided is a method and apparatus for cell staining without cell loss, and more particularly, to a method and apparatus for cell staining without cell loss during treatment of a staining reagent or washing reagent by immobilizing cells to be analyzed in a phase change material before staining. A method for cell staining without cell loss may effectively prevent cell loss during staining and analysis of rare cells that are becoming important in clinical diagnosis, and thus may facilitate observation, analysis and diagnosis thereby even with a trace amount of sample. In addition, as the method for cell staining without cell loss allows immobilization of cells, it makes discrimination and isolation of single cells easy, and may be effectively used in analysis of the isolated cells.

A pneumatic tire comprises: a tread portion; a pair of sidewall portions; a pair of bead portions each with a bead core embedded therein; a toroidal carcass extending between the bead portions; and a sidewall rubber disposed axially outside the carcass in each of the sidewall portions. The bead portion has a bead bottom surface which contacts with a bead seat of a wheel rim when the tire is mounted thereon. The bead bottom surface comprises an axially inner region including a bead toe and an axially outer region including a bead heel. The axially inner region is formed by a canvas chafer. The axially outer region is formed by the sidewall rubber extended radially inwardly from the sidewall portion.

To provide a pneumatic tire which can improve rim fitting properties and also improve operation stability.SOLUTION: A pneumatic tire 1 comprises: a tread 10; a side wall 20; and a bead part 30. The bead part 30 includes: a bead base surface 34 which extends along a first linear line L1 slanted to a tire radial direction outer side toward a tire axial direction outer side at a tire radial direction inner end of the bead part 30 on the external surface when viewed in a tire meridian cross section; a bead back face 35 which extends in the tire radial direction outer side at the tire axial direction outer end of the bead part 30, and extends along a second linear line L2 in which a tire radial direction inner end is along the tire radial direction; and a bead heel surface 36 which extends along a third linear line L3 further slanted to the tire radial direction outer side toward the tire axial direction outer side than the first linear line L1 between the tire axial direction outer end of the bead base surface 34 and the tire radial direction inner end of the bead back face 35.SELECTED DRAWING: Figure 3

To provide a motorcycle tire capable of increasing vibration absorbability to improve steering stabilizing performance while maintaining high rigid feeling during traveling.SOLUTION: A motorcycle tire 1 comprises an installation rubber layer 10 disposed between a body 6a of a carcass ply 6A and an inner liner layer 9. The installation rubber layer 10 extends from a first end 10e of a tread 2 side to at least a bead core 5. A side wall 3 includes an outermost end t1 of the tire in a radial direction in which a normal rim R comes into contact with a tire outer surface 1s of the side wall 3. The tire outer surface 1s of the side wall 3 is provided with a side profile 3S which occupies, from a tread end Te, to 90% or more of a tire radial length La between the tread end Te and the outermost end t1. The side profile 3S is linear or a circular arc in which a curvature radius r1 is 55 mm or larger and which is projected inside in a tire axial direction.SELECTED DRAWING: Figure 1

The light-weight tire comprises a tire bead area, a tire side area, a tire body layer, a belted layer and a tire crown area which are distributed from inside to outside, the tire bead area is provided with a steel wire ring, bead filler wrapping the steel wire ring, a tire bead filling rubber strip covering the outer side of the bead filler, a wear-resistant rubber strip wrapping the exterior of a tire bead, and a tire chafer, the tire sidewall area comprises a tire sidewall and steel wire wrapping cloth at the edge of the tire sidewall, the tire body layer penetrates through the whole tire, the tire body layer comprises a tire body, and a lining layer is arranged on the inner side of the tire body layer. Through a series of structural design and process optimization measures, the self weight of the tire is reduced, and meanwhile, the driving performance and the safety of the tire are ensured not to be influenced.

A pneumatic tire (10) is disclosed comprising a carcass (22) and a belt structure (40). The belt structure (40) comprises a plurality of belt layers that include at least one spiral belt layer (60) and at least one zigzag belt layer (70). Each of the at least one spiral belt layers (60) has cords arranged at an angle of 5° or less with respect to an equatorial plane of the pneumatic tire (10) and each of the at least one zigzag belt layers (70) has cords arranged at an angle in a range of from of 2° to 40°, alternatively from 5° to 30°, with respect to the equatorial plane of the pneumatic tire (10) and extending in alternation to turnaround points at each lateral edge of the belt structure (40). A first belt layer of the plurality of belt layers located radially outward of the carcass (22) is one of the at least one spiral belt layers (60). The first belt layer has an axial width less than the axially widest belt layer of the plurality of belt layers. The pneumatic tire (10) further comprises a tread (20) comprising two or more main grooves (17a, 19a, 17b, 19b) extending circumferentially continuously around the pneumatic tire (10) and defining a plurality of ribs (25a, 23a, 21, 23b, 25b) that include an axially outermost rib (25a, 25b) on each lateral side of the tread (20). At 10% to 100% of the rated inflation pressure of the pneumatic tire (10) and no load, each of the two axially outermost ribs (25a, 25b) is radially raised in relation to a respective next nearest rib (23a, 23b) located axially inward of the respective axially outermost rib (25a, 25b).

The application discloses a light truck tire with a light-weighted bead structure and relates to the field of all-steel tires. The bead part comprises a tire body, a steel wire ring, lower triangular rubber, upper triangular rubber and wear-resistant rubber. The outer end point of the wear-resistant rubber is higher than the upper end point of the upper triangular rubber. The ratio of the height of the outer end point of the wear-resistant rubber to the height of the tire section is in the range of 0.23-0.53. The ratio of the height of the upper end point of the upper triangular rubber to the height of the tire section is in the range of 0.20-0.50. The outer end point of the wear-resistant rubber is higher than the upper end point of the upper triangular rubber, so that the thickness of the triangular rubber and the height of the triangular rubber are further reduced, the thickness of the bead is reduced, and stress concentration of the end points of the components of the bead part caused by the small difference level is avoided.

Pneumatic tires (1), comprising: a bead core (11) formed from one or more tire bead wires (111) which are wound in a ring shape and multiple times; a carcass layer (13) formed from one or more carcass layers, wherein the carcass layer (13) is folded over so that it wraps around the bead core (11) and extends over the bead core (11); a wheel rim pad rubber (17) arranged along a folded-over section (132) of the carcass layer (13) to form a rim mating surface of a bead section, wherein the bead core (11) has a predetermined wire arrangement structure formed by arranging a wire cross-section of the tire bead wire (111) in a cross-sectional view in a tire meridian direction, The following is determined in the wire arrangement structure: a tangent line L1, which touches an innermost wire layer in a tire radial direction and the innermost and outermost wire cross-sections in a tire transverse direction from one side of the rim mating surface; contact points C1, C2 on the tangent line L1; a center point Cm of the contact points C1, C2; and thicknesses G1, G2 and Gm in the tire radial direction between the contact points C1, C2 and the center point Cm and the rim mating surface. The rates of change ΔG1, ΔG2 and ΔGm of the thicknesses G1, G2 and Gm before and after rim mounting are each in a range of 10 (%) to 60 (%); wherein a layer with the largest number of wire cross-sections in the wire arrangement structure is determined as a maximum arrangement layer, the number of layers of wire cross-section on the outside of the maximum arrangement layer in the tire radial direction is greater than the number of layers of wire cross-section on the inside of the maximum arrangement layer in the tire radial direction and The number of wire cross-sections in each layer on the outside of the maximum arrangement layer decreases monotonically from the maximum arrangement layer towards the outside in the tire radial direction.

The invention relates to a vehicle pneumatic tire comprising a tread, a carcass (2) with a carcass ply (2a) with carcass reinforcement carriers and a coil bandage with a coil bandage reinforcement carrier, wherein each carcass ply (2a) runs between bead areas (4), wherein a bead core (5) is arranged in each bead area (4) and each carcass ply (2a) is folded over the bead cores (5) so that a carcass fold (2f) is formed. According to the invention, it is provided that - in the carcass (2) a carcass reinforcement carrier (2b) made of a metallic material runs, - the bead core (5) has a teardrop-shaped cross-section and no apex is arranged radially above the bead core (5) between the bead core (5) and the carcass layer (2a), - the carcass high-profile cut (2f) runs radially below the sidewall (3), and - the vehicle tire has a load index in the range of 71 to 126.