862results about "Tyre beads" patented technology

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.

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.

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.

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.

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).

Provided are: a tire capable of suppressing decrease in power supply efficiency even on wet road surfaces; and a wireless power supply system utilizing the tire. A tire 10 includes: a tread section D that includes a tread surface 34; a pair of bead sections A; and a pair of sidewall sections B disposed between the tread section D and the bead sections A. The tire 10 comprises a power reception coil 40 that receives power supplied via an alternating-current magnetic field from outside the tire 10. In a view of a tire meridian cross-section in a non-loaded state, the power reception coil 40 is disposed on the radially inner side of the tire relative to the outermost position OP where a first virtual line L1, forming an angle α of 15° with a tire equatorial plane CP, and a tire side surface contact.

To provide a pneumatic tire of an outer apex structure, which improves durability performance of a toe of bead.SOLUTION: In a pneumatic tire, a reinforcement rubber layer adjacent to the tire-axial-direction outside of a folded part is arranged on at least one of a pair of toes 4 of bead. The reinforcement rubber layer includes a first rubber layer 11, and a second rubber layer 12 that is arranged on the tire-axial-direction outside of the first rubber layer 11. The loss tangent tanδ1 of the first rubber layer 11 is smaller than the loss tangent tanδ2 of the second rubber layer 12.SELECTED DRAWING: Figure 2

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