367results about "Tyre beads" patented technology

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.

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.

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.

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.

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.

The invention provides a pneumatic tire and a method for manufacturing the same, wherein the tire thickness of a tire shoulder part can be sufficiently ensured and the durability and the puncture sealing property of the tire can be both realized through the structure of a tire body. In a pneumatic tire in which a carcass layer (4) has a structure in which a bead core (5) of a bead section (3) is wound up from the inside to the outside of the tire, the end (4e) of a wound-up section (4B) of the carcass layer (4) is disposed further toward the inside in the width direction of the tire than the end (7e) of a belt layer (7), and a sealant layer (20) is formed on the inner surface (10) of the tire at a tread section (1). The end portion (20e) of the sealant layer (20) in the tire width direction is located at the shoulder portion and is disposed further toward the outside in the tire width direction than the tip end (4e) of the wound-up portion (4B) of the carcass layer (4).

To provide a heavy load tire 2 which can be reduced in weight and can achieve improvement of SFC resistance.SOLUTION: In a meridian cross section of a tire 2, a contour CL of a carcass 12 has: a curved portion 44 expanded outward; and a reverse curved portion 46 which is provided at radial inside of the curved portion 44 and dents inward. The reverse curved portion 46 is connected to the curved portion 44. A boundary between the curved portion 44 and the reverse curved portion 46 is a flexion point PV. A part or whole of the curved portion 44 is expressed by a first arc including the flexion point PV. A part or whole of the reverse curved portion 46 is expressed by a second arc including the flexion point. The first and second arcs come in contact with each other at the flexion point PV. A side surface 48 of the tire 2 has; a recessed portion 50 which hollows inward; an outside portion 52 which is located at radial outside of the recessed portion 50; and an inside portion 54 which is located at radial inside of the recessed portion 50. The recessed portion 50 is located at radial outside of the flexion point PV.SELECTED DRAWING: Figure 5

To provide a pneumatic tire capable of improving riding comfort performance while suppressing deterioration of low rolling performance.SOLUTION: The pneumatic tire 1 includes a cap rubber 2C having a rubber hardness B. In a tire meridian cross section of a normal state, a rim protector 10 having a top part 11 projecting to a tire outer side is formed on an outer surface side 4s of a first bead part side 4A. The rim protector 10 includes an inside circular arc surface 12 of a curvature radius C (mm) extending from a top part 11 to the inside in the tire radial direction and having a 12c central part in the tire outside. When a separation distance in the tire axial direction between the top portion 11 and a tire radial direction line RL defining a rim width of a normal rim R is H, the following formula (1) is satisfied. 12.8 ≤ H * B / C ≤ 93.5 (1) SELECTED DRAWING: Figure 1

The invention relates to a vehicle pneumatic tire comprising two sidewalls connected to each other via a tread, and a tire carcass with bead areas arranged in the sidewalls, wherein the first and / or second bead area is additionally connected to a relative inner helix area (6) which anchors the tire carcass (3) by wrapping around a bead core (4) arranged on the corresponding bead area (5) and has a free carcass end (7), wherein the helix area is guided around the associated bead core such that the carcass end (7) terminates radially outside the bead core, and wherein a separate reinforcing element (13) is provided with two reinforcing sections (13a, 13b) folded towards each other at a fold (8), wherein the reinforcing element (13) is arranged either on a side of the tire carcass (3) facing the bead core or facing away from it, and wherein the free ends (15,16) the reinforcement sections (13a, 13b) are arranged radially inside the bead core in a region (9) and the folding is arranged radially outside the bead core.

The invention relates to a pneumatic vehicle tyre having a tread, a carcass (2) and a winding bandage with at least one winding bandage reinforcement, wherein the carcass (2) has a carcass ply (2a) with a carcass reinforcement (2b), and the carcass ply (2a) runs between bead regions via side walls (3). According to the invention, - in the carcass ply (2a), a carcass reinforcement (2b) made of a metallic material (mM) runs at a third angle (α3) which changes between the bead regions (4) in such a way that the carcass reinforcement (2b) runs radially below the tread (6) at a different third angle (α3) than in the bead regions (4) and / or in the region of the side walls (3); - the winding bandage reinforcement (8b) has an elongation at break (D) of between 2% and 6%; and - the pneumatic vehicle tyre (50) has a load index in the range of 71 to 126.

Provided is a tire having improved durability during high-speed travel. A tire having a pair of bead sections each having a bead filler extending from a bead core to the outside in the tire radial direction, and a bead support layer disposed on the outside of the bead filler in the tire rotation axis direction, the bead support layer being composed of a rubber composition (B), the tire having an outer diameter (mm) of Dt and an outer diameter (mm) of Dt, the outer diameter (mm) of Dt being smaller than the outer diameter (mm) of Dt being smaller than the outer diameter (mm) of Dt, and the outer diameter (mm) of Dt being smaller than the outer diameter (mm) of Dt being smaller than the outer diameter (mm) of Dt. When the loss tangent of the rubber composition (B) at 70 DEG C is 70 DEG C tan [delta] (B), Dt and 70 DEG C tan [delta] (B) satisfy the following formulae: (1) 70 DEG C tan [delta] (B) * Dt < = 110.0; (2) Dt < = 600.

A pneumatic tire including: a tire body; and a communication device embedded in the tire body or attached to an inner surface of the tire body. The communication device includes a flat antenna, and the communication device is disposed so that an antenna in-plane direction that is perpendicular to the thickness direction of the flat antenna is along an outer surface of the tire body.

The invention relates to a pneumatic vehicle tire having two sidewalls (5) terminating in a bead region (8), in which the bead region (8) is formed with a bead core (3), a carcass insert (4) extending around the bead core, and a rubber rim flap (7) forming the outer surface of the bead region (8), the rubber rim band (7) is arranged at least partially between the rim (1) and the bead core (3) in a position for using the vehicle pneumatic tire on the rim (1), the rubber rim band (7) being formed as a single piece from a rubber compound, and the rubber compound being arranged at least partially between the rim (1) and the bead core (3) in a position for using the vehicle pneumatic tire on the rim (1). The rubber compound has a loss factor (tan [delta]) of between 0.02 and 0.2 at 20 DEG C according to DIN 53512 and a Shore hardness in the range of 65 Sh-A to 80 Sh-A measured by means of a durometer at 20 DEG C according to DIN ISO 7619-1. The invention also relates to a wheel having such a pneumatic vehicle tire, and to the use of a rubber rim flap.

To further improve the fuel efficiency performance of a tire, provided is a tire comprises a carcass formed by winding up a two-layer structure of a first carcass ply having a carcass cord and a second carcass ply, a belt having a belt cord, a band having a band cord containing polyethylene terephthalate fiber, and a tread formed using a rubber composition containing more than 75 parts by mass of silica per 100 parts by mass of a rubber component and having an acetone extractable content of more than 15% by mass and provided on the radially outer side of the band, wherein the outer diameter Dt (mm) of the tire, the winding height P1 (mm) of the first carcass ply, the winding height P2 (mm) of the second carcass ply, the diameter D1 (mm) of the band cord, the diameter D2 (mm) of the belt cord, and the diameter D3 (mm) of the carcass cord satisfy (formula 1) and (formula 2). P1−P2 / Dt<0.07 D1+D2+D3<2.00

To address a problem of providing recovered carbon black capable of maintaining the physical properties of a rubber composition even when reused in the rubber composition, and also providing a mixture of such recovered carbon black and a liquid polymer, a solution is: recovered carbon black obtained by decomposition of crosslinked rubber containing diene rubber and carbon black, wherein an organic component remaining in the recovered carbon black after toluene washing is 5 mass% or more; and a mixture of such recovered carbon black and a liquid polymer, wherein the liquid polymer has a weight-average molecular weight of 300,000 or less.

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 utility model discloses a tire with a reinforced shoulder structure, belonging to the field of tire manufacturing technology. It includes a ply, a belt layer, a ply rubber strip, a crown belt layer, and a reverse wrap portion. The ply layer's end wraps back to the shoulder area, forming a reverse wrap portion. The belt layer is located in the crown area above the ply layer. The crown belt layer covers the upper surface of the belt layer. The ply rubber strip is attached to the end of the ply layer, extending circumferentially along the tire, and its end is attached to the bottom surface of the belt layer and crown belt layer ends. The ply rubber strip fills the reverse wrap edge of the ply layer and the shoulder space at the end of the belt layer. This invention solves the problem of structural integrity damage caused by excessive stretching of the ply layer due to high-pressure environments in existing technologies. It significantly reduces raw material consumption while maintaining the uniformity of the tire carcass cord arrangement and avoiding the distortion risk caused by high-pressure vulcanization.

The utility model discloses a tire bead structure of an all-steel radial tire, which belongs to the field of tire structures and comprises a sidewall rubber area, a wear-resistant rubber area, a steel wire wrapping cloth area, a reinforced steel wire wrapping cloth area, an isolation rubber area, a tire body steel cord area, a steel wire ring area, a lower apex area, a lining layer area and an upper apex area. A layer of reinforced steel wire wrapping cloth is additionally arranged between the steel wire wrapping cloth area and the tire body steel cord area, and the height values of all end points of the steel wire wrapping cloth area, the reinforced steel wire wrapping cloth area, the tire body steel cord area, the upper apex area and the lower apex area are configured in a staggered difference level mode, so that the stress concentration problem of all component materials can be solved; wherein the end point of the inner side of the reinforced steel wire wrapping cloth area is located in the center of the bottom of the steel wire ring area, the purpose of reinforcing the tire bead can be achieved, stretching from the tire sidewall to the tire bead part can be reduced, and the risk that the tire sidewall cracks is reduced.

The invention relates to the technical field of tire structures, and discloses a high turn-up structure all-steel radial pneumatic tire for urban rail vehicles, which comprises a tire body and a tire bead, the tire body is sequentially provided with an inner layer cord fabric and an outer layer cord fabric to form a high turn-up structure; the outer-layer cord fabric is close to the tire bead to form a bent section AB, the curvature center of the bent section AB is far away from the inner-layer cord fabric, the bent section AB forms an arc upper end point A, an arc lower end point B and a bent vertex C, the height HA / H of the arc upper end point A is 0.24, the height HB / H of the arc lower end point B is 0.076, and the depth Tc of the bent vertex C and the height H of the section meet the condition that Tc / H is larger than or equal to 0.019 and smaller than or equal to 0.031. The bearing capacity of the tire is improved by arranging the high turn-up structure, the outer-layer cord fabric located on the tire bead is bent inwards, the depth of the bending vertex C is limited, and the position of the bending section AB relative to the tire bead is limited, so that the tire body is always in a tension bearing state; the steel wire cords forming the tire body are prevented from being separated from rubber and even being abraded and broken due to periodic compression and pull circulation, and the durability of the tire is improved.

An embodiment of the present invention provides a tire having a bead portion for improving transverse rigidity and durability. The tire having a bead portion for improving transverse rigidity and durability according to an embodiment of the present invention comprises: a bead bundle positioned on the bead portion of the tire; a bead filler having a lower end portion coupled to the upper surface portion of the bead bundle, the bead filler being disposed to extend from the bead bundle to a side wall; a carcass coupled to the inner surface of the side wall of the tire and disposed to extend such that the inner surface of the bead filler and the lower portion of the bead bundle are surrounded; an inner liner coupled to the inner surface of the carcass and disposed to extend to the bottom surface portion of the carcass; rim cushion rubber coupled to extend from the lower inner surface of the inner liner to the bottom surface portion of the carcass, thereby surrounding one edge of the carcass, the rim cushion rubber being disposed to extend to the upper portion of the bead filler; and side wall rubber coupled to the upper portion of the carcass and disposed to extend to the rim cushion rubber, thereby being coupled to the upper end portion of the bead filler and to the rim cushion rubber. One edge corresponding to one end of the carcass is disposed adjacent to the bead bundle and is positioned below a rim flange of the tire.

An integral alloy vehicle wheel is provided with a replaceable bead seat protector that protects the bead seat portion of the wheel from tire abrasion and subsequent corrosion. The bead seat protector has a split body to aid in mounting the protector over the outer flanges of the vehicle wheel.

Provided is a tire (2) that can achieve weight reduction while suppressing a decrease in strength of a carcass without impairing appearance quality. The tire (2) includes a pair of beads (10), a carcass (12), an inner liner (20), and a separation layer (22) between the carcass (12) and the inner liner (20). The carcass (12) is composed of one carcass ply (42). The carcass ply (42) is composed of a plurality of carcass cords (44) and a coating rubber (46). The total fineness of the carcass cords (44) is 6000 dtex or more and 9000 dtex or less. The separation layer (22) is between the first bead (10) and the second bead (10). The ratio (ta / td) of the thickness ta of the coating rubber (46) between the separation layer (22) and the carcass cords (44) to the thickness td of the separation layer (22) is 0.2 or more and 0.6 or less.

The utility model provides a tire with low rolling resistance, which belongs to the technical field of tires and comprises a tread, a tire body and a belted layer arranged between the tread and the tire body, a central pattern groove extending along the circumferential direction of the tire is arranged in the middle area of the tread, and a plurality of transverse pattern grooves are arranged in tire shoulder areas on two sides of the tread. And the depth H1 of the transverse pattern grooves and the depth H2 of the central pattern grooves meet the equation that H2-H1 is equal to 2-3mm. The low-rolling-resistance tire has the characteristics that the weight of the tire is reduced, the rolling resistance is reduced, the heat dissipation is improved, the ageing resistance is improved, and the service life of the tire is prolonged.

The present application relates to the technical field of tire overall preparation, and proposes a variable stiffness tire and a tire overall preparation device, which can adapt to various driving conditions and realize the collaborative optimization of comfort and control performance, and the structure can effectively disperse flexural stress, and is not prone to heat accumulation, bulging and cracking, thereby significantly improving high-speed durability and load capacity, and the matching tire overall preparation device can adapt to the molding process of the tire body, effectively improve tire production efficiency and manufacturing precision, and comprises a tire body and a triangular rubber ring, wherein the tire body comprises a tread, a sidewall and an inner tire ring, the sidewall is divided into a shoulder section, a sidewall middle section and a bead section in the radial direction, the stiffness of the bead section, the shoulder section and the sidewall middle section decreases in turn, the sidewall middle section is a main flexible deformation area, the shoulder section provides lateral restraint, the bead section provides high stiffness support, the tread is fixedly connected with the shoulder section, and the inner tire ring is fixedly connected with the triangular rubber ring.

The invention belongs to the technical field of tire simulation and tire structure design, and discloses a method for improving abnormal deformation of the side wall of a bias tire, which comprises a steel wire ring, apex, a fiber cord fabric layer and a tire body cord fabric layer, the steel wire ring, the apex, the fiber cord fabric layer and the tire body cord fabric layer jointly form a lower part of the tire, the method comprises the following specific steps: step 1, determining an improvement target and a tire specification, determining a specific target for improving the abnormal deformation of the side wall of the bias tire, and selecting the tire specification needing to be improved; according to the invention, the number of existing steel wire rings does not need to be increased to 3-4, so that the unnecessary extra increase of the production cost of the steel wire rings and the tire body cord is reduced, and the difficulty of a forming process is far lower than that of a scheme of 3-4 steel wire rings; only a single-layer fiber cord thread layer is used, so that the production cost is low, and the risk of heat generation and delamination is low; according to the fiber cord layer, the problem that the rigidity is insufficient due to the fact that only the fiber cord layer is arranged on the inner side is solved through the process of reversely wrapping the steel wire ring.

Vehicle tires with two bead areas (1) with bead cores (2), wherein each bead core (2) is wound spirally from a linear reinforcement carrier (8) to form an annular bead core (2), characterized in that the linear reinforcement carrier (8) is a cord made of non-metallic materials and has at least two intertwined linear elements, preferably yarns, and that the cord - either a cord (8) made of non-metallic high-modulus material, preferably PBO is - or a hybrid cord (8) wherein one linear element is made of a non-metallic, high-modulus material and wherein another linear element is made of a non-metallic, low-modulus material.

The utility model relates to an agricultural tire bead belongs to tire technical field, including the crown and the side, the side makes the crown radially extend inwards, the inside installation of side has multiple groups's buffer layer, the inside installation of buffer layer has the inner liner or the oil skin glue, the outside of side is provided with multiple groups's circumferential waterproof line and circumferential exhaust line, between circumferential exhaust line and circumferential waterproof line is provided with multiple groups's first section exhaust line of intercommunication, is provided with exhaust hole on first section exhaust line, the present application is through first section exhaust line, second section exhaust line and exhaust hole to solve the bead scar problem and the potential residual gas in the bead position, improve the appearance quality while avoiding residual gas to cause the early damage in the process of using the bead, the increase of exhaust line can increase the cooperation of tire bead and rim simultaneously, increase the friction, when using more closely reduce the tire and the rim use stress too big when slipping problem.