1822 results about "Tire bead" patented technology

A pneumatic vehicle tire includes a carcass, a bead with a bead core arranged in the bead, and a first sensor located within the bead. The first sensor delivers signals which are correlated to frictional forces transmitted by the pneumatic vehicle tire during operation. This sensor has a first end and a second end, wherein the first end includes a heel attached to the bead core and the second end extends radially outward from the bead core within the tire. A plurality of such sensors can be included in each tire, some for measuring longitudinal forces in a circumferential direction of the tire and others for measuring lateral forces in an axial direction of the tire.

The invention relates to a rubber tire composed of carbon black reinforced rubber carcass and having a rubber tread which is quantitatively reinforced with silica and which, in turn, has a thin, integral, rubber outer cap on its outer surface which contains a quantitative amount of carbon black. In one aspect, said outer cap, sometimes referred to herein as an outer top cap, extends across the outer surface of the tread which is normally intended to be ground contacting and in an alternative aspect, the outer top cap extends only over the outer portion, namely the peripheral edges, of said tread surface intended to be ground contacting. The outer, carbon black reinforced, rubber tread top cap connects with at least one other carbon black reinforced rubber component of the tire in a manner to provide a path of reduced electrical resistance from said outer tread top cap to the bead portion of the tire carcass and, therefore, such a path from the vehicle to the road surface.

Method and apparatus for mounting a pneumatic tire Method for mounting a pneumatic tire (5) on a well base rim (26) of a motor vehicle wheel, in which the pneumatic tire (5) is grasped by means of a manipulator (1), brought up to a rim (26) held in a clamping device (27) and slipped with at least the one tire bead (20) facing the rim over a rim flange (28) by controlled movement of the manipulator (1). The apparatus suitable for this purpose comprises a manipulator (1) with an articulated arm (3) movable in three directions, which bears at its free end a gripper (2) for gripping and holding pneumatic tires (5), and a first mounting station (25) with clamping means (27) for releasably holding a rim (26), wherein the mounting station (25) is arranged within the working range of the manipulator (1).

A pneumatic tire has an inboard tire tread edge and an outboard tire tread edge positioned towards the center of a vehicle body and away from the center of the vehicle body, respectively. The tire tread is divided by circumferentially continuously extending main grooves into a center land portion, a pair of middle land portions and a pair of shoulder land portions. In a meridian section of the tire, a center profile of a tread of the center land portion and a middle profile of a tread of each of the middle land portions protrude convexly, radially outwardly from a virtual tread profile defined as smoothly passing through the axial ends of the treads of the center land portion and the middle land portions. The peak of the center profile and the peak of the middle profile are off-centered toward the outboard tire tread edge.

The invention relates to the tire manufacture field, especially to a tire apex composition for improving a bond system and its preparation method and application. The tire apex composition for improving the bond system is formed by the mixing of the following ingredients of: by weight, 70-100 parts of natural rubber, 0-30 parts of styrene-butadiene rubber, 55-75 parts of carbon black, 1.0-4.0 parts of resorcinol, 0.2-3.0 parts of cobalt decanoate, 3-8 parts of a methylene donator adhesive, 0-20 parts of white carbon black, 3-8 parts of a vulcanizing agent and a sulfuration promoter and other processing auxiliary agents. The tire apex composition for improving a bond system obviously raises modulus and binding property, decreases heat generation, minimizes modulus loss at high temperature,and simultaneously reduces formula cost. By employing BTR tires under the precondition of unchanged structure, the hard apex strength and hardness can be guaranteed not to be decreased, the modulus is substantially increased, the bond performance between the apex and steel wires/steel wire cords is remarkably improved, and the anti-destroy performance of tire bead positions is raised.

It is a subject to restrict occurrence of deficient moldings and to improve the bead durability without harming the advantages provided through a bead wind structure, and for this purpose, a ply turn-up portion of a carcass comprises a winding portion, which continues from a main portion that is bent along a bead core, which extends while being spaced from the bead core, and which inclines at an angle θ that is smaller than 90°. A height of a tip end of the winding portion from an outer surface of the bead core is 3 to 15 mm. A cushion rubber having a complex elastic modulus E1* at 70° C. of 2 to 25 MPa is disposed in a region surrounded by a ply main body portion of the carcass, the bead core and the winding portion.

A filler rubber being triangular-shaped in cross section can be held in an upright posture to be stuck to an outer peripheral surface of a bead core and a leading end and a trailing end can be butted against each other to be joined without the generation of crack. A filler rubber (F) is held in an upright posture to be wound around an outer peripheral surface of a bead core (C) supported by a rotary support body (10), and in joining a leading end (F1) and a trailing end (F2) of the filler rubber cut to a predetermined length, the neighborhood of the leading end and the neighborhood of the trailing end, respectively, are interposed by first and second interposing means (50), (70), and one (50) of the interposing means is displaced toward the other from a state, in which the leading end (F1) and the trailing end (F2) are opposed to each other whereby end surfaces of the leading end (F1) and the trailing end (F2) are butted against each other.

The running characteristics of a vehicle wheel with a tire are improved by applying axial pressure with a pressure application ring (26) which temporarily compresses the flanks of a tire (10) to such an extent that a portion of the axially outwardly facing surface of the respective tire bead lifts off from the respective rim flange. This permits the tire bead to press itself, in response to the air pressure in the tire, into the corner formed between a cylindrical portion of the rim and the flange portion of the rim. The ring-shaped pressure application ring (26) comprises a plurality of circumferentially arranged ring sectors (7). These sectors can be adjusted in their radially inwardly or outwardly to thereby adapt the diameter of the pressure application ring for use in connection with a wide range of tire diameters.

A pneumatic tire that can be manufactured according to the conventional method without requiring special tire manufacturing steps and without needing addition of material members and production steps, and having excellent rolling resistance and wet properties, and having conductivity is to be provided. A pneumatic tire 10 comprises a carcass 14 having a ply which is turned back and locked around a bead core 12, a rim strip 19 provided in a bead part 11, and a wing 24 in which one edge thereof is contacted with the carcass 14 and the other edge is exposed to the surface of a ground contact edge region of a tread part 13, wherein a covering rubber of a carcass ply 25, the rim strip 19 and the wing 24 are formed into a continuous conductive path by a conductive rubber material, only the conductive path is used as a conducting path of the tire 10, and members other than the conducting path are selected and used from a conductive rubber material or a nonconductive rubber material.

The invention discloses a method for producing gelatine powder under normal temperature by using waste tires, which relates to the technical field of producing gelatine powder under normal temperatureby using waste rubber products, and comprises the detailed steps of: a. separating a tire bead; b. crashing the tire; c. separating steel wires; d. magnetically separating for the first time; e. screening for the first time; f. magnetically separating for the second time; g. screening for the second time; and h. screening for the third time. The method has simple technique, is convenient for large-scale industrial production, and has lower investment and production cost; the grain diameter quality of the produced gelatine powder is stable; moreover, the method can produce the gelatine powderwith different grain diameter specifications, thus meeting the demands of different users.

There is provided a method of tire manufacturing a tire in which preset-beads each preformed by mounting a bead filler on a bead core are disposed radially outward of a carcass band and both side portions of the carcass band are turned around the preset beads to build the tire. The method eliminates a need to bold the considerable intermediate stocks and does not deteriorate the tire uniformity due to the unevenness of the preset bead in the circumference direction. There are also provided an apparatus of forming a preset bead used therefore and a system of forming a preset bead. In the method of manufacturing a tire in which preset-beads each preformed by mounting a bead filler on a bead core are disposed radially outward of a carcass band and both side portions of the carcass band are turned around the preset beads to build the tire, the preset bead is formed by winding and laminating a ribbon-shaped filler rubber 5 radially outward of the bead core 10 over several laps.

The invention provides an inflatable tire which can suppress water entering a tire bead core. The inflatable tire (1) comprises a tire bead part (4) provided with the annular tire bead core (17) along the circumference of the tire. The inflatable tire further comprises an inner lining (10), a tire bead wrapping rubber (11), a tire bead basal part (24) and a rubber sheet (13) clamped between the inner lining (10) and the tire bead wrapping rubber (11). In a tire (1) cross section including a central shaft plane, the end part (10c) of the inner lining (10) is located on a position closer to the tire axial outer side than the end part position (CE) of an embedding area (CP). The embedding area (CP) is in close connection with a tire rim (40) of the tire bead basal part (24). The thickness of the inner lining (10) at least on the embedding area is over 1.0mm.

The invention relates to a three-drum forming method of a full steel wire loading radial tire via a one-time method, belonging to the manufacturing technical field of a tire. A tire bead is located by a magnet absorption ring, a tire cord joint adopts an automatic seaming type joint, an inclined angle between an lining layer/a tire-side composite component joint and a tire cord is more than or equal to 6 degrees, the joint adopts automatic lamination, and weighing control of each tire blank is implemented by adopting a device which repairs the tire in the front and dismounts the tire at the back for a material feeding frame. In such a forming process, an automatic level and production efficiency of the forming are improved, a labor intensity of operators and a quality defect caused by human factors are reduced, a forming storage space and a transportation line are optimized, and the quality and the cost control level of products are improved.

The truck tire of the invention allows the endurance of an ordianry tire not to be damaged and helps to improve the wearing resistance. A tire bead is provided with a first tire bead reinforcing cord layer, a second tire bead reinforcing cord layer and an anti-wearing rubber layer. The first tire bead reinforcing cord layer is U-shaped for connecting an internal portion and an external portion via a bottom portion, wherein the internal portion is arranged along the internal side of the cord main body of a tire body, and the external portion is arranged along the external side of the cord returning portion of the tire body. From an internal end clamped between the internal portion and the cord main body, the second tire bead reinforcing cord layer extends toward an radial external side beyond the internal portion along the cord main body. The anti-wearing rubber layer comprises a rubber sheet which is 0.5-1.5mm in thickness, has a complex modulus of 6.0-10.0MPa, and is arranged between a tire body cord and a tire bead core along the tire body cord. The difference between the height of the external end of the second tire bead reinforcing cord layer and the height of the external end of the cord returning portion is 5-25mm. The difference between the height of the external end of the internal portion and the height of the internal end of the second tire bead reinforcing cord layer is 10-40mm.

A heavy duty tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions each with a bead core therein, the bead core with an aspect ratio (HC1/WC) of from 0.43 to 0.58, and a carcass comprising a carcass ply of cords extending between the bead portions and turned up around a bead core in each bead portion from the inside to outside of the tire so as to form a pair of turnup portions and a main portion therebetween, the turnup portion comprising a turnup main-part extending along an axially inner surface, a radially inner surface and an axially outer surface of the bead core smoothly, and a turnup sub-part extending from the turnup main-part toward the main portion near the radially outer surface of the bead core.