Abstract: A heavy duty radial tire having improved bead durability accommodated to a standard 15 degree taper center drop rim comprises a pair of bead cores disposed one in each bead portion, a steel cord radial carcass ply turned up around the bead cores from the axially inside to the outside, a hard rubber bead apex disposed between the carcass ply main portion and each turnup portion, a bead reinforcing layer of reinforcing cords disposed axially outside each carcass ply turnup portion, and a rubber strip disposed between each turnup portion and the bead reinforcing layer, the rubber strip being harder than the bead apex, and the difference B-D of the inside diameter B of the bead cores from the rim diameter D of the rim is in the range of from -4 to 1 mm.

Abstract: A pneumatic radial tire comprises a breaker belt disposed radially outside the carcass having at least two cross plies of high elastic modulus cords laid at an inclination angle of from 15 to 30 degrees with respect to the tire equator, and a band belt disposed radially outside the breaker belt and comprising a full-width band and a pair of axially spaced edge bands, wherein the full-width band is made of low elastic modulus organic fiber cords arranged substantially parallel to the tire equator. The edge bands are made of high modulus organic fiber cords arranged substantially parallel to the tire equator, whereby the high speed durability and cornering performance are improved.

Abstract: A tire has a carcass reinforcement (1) which, when viewed in meridian secn, is wound in each bead B about a bead wire (2) coated with a rubber mix, passing from the heel to the toe of the bead B, the upturn (10) being located in a profile (3) of rubber mix in the form of a wedge defined by two sides (31 and 32) coming from an apex A located beneath the section of the coated bead wire (2). Advantageously the upturn (10) surrounds in its entirety the contour of the profile (3), forming either a first radially inner side (32), a lateral side (30), and a final radially outer side (31) or a first radially outer side (31), a lateral side (30), and a final radially inner side (32). The tire may form with different rims J high-performance assemblies in the event of travel at low or zero pressure, permitting simple mounting of the tires and optionally of bearing supports S for the tire tread on the rims J.

Abstract: A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber.

Abstract: A pneumatic radial tire has a carcass extending around the tire from bead-to-bead, sidewalls and a rubber tread region which has a profile, when considered in transverse cross section, of a new tire terminating at the sides of the tread in inner and outer shoulder regions, respectively, each shoulder region having a shoulder drop, which is the distance, in the radially inward direction, from the point of maximum tire diameter to a point of the shoulder at the edge of the shoulder region, such that when the tire is mounted on a scheduled wheel rim and inflated to a scheduled pressure, the tread region is asymmetric, having its point of maximum tire diameter offset in the axial direction of the tire from the center line of the tire section in the direction of the inner shoulder, and the shoulder drop of the outer shoulder is greater than the shoulder drop of the inner shoulder such that the tread region has an asymmetric profile, wherein the tread region has a substantially constant tread gauge or thickness exc

Abstract: A pneumatic tire comprises a radially inner bead core disposed in at least one of the bead portions, a radially outer bead core disposed radially outside the inner bead core, a buffer rubber layer disposed between the radially inner bead core and radially outer bead core to provide a predetermined space therebetween, and a toroidal carcass extending between the bead portions through the tread portion and sidewall portions, wherein the carcass comprises a ply of cords turned up around the radially outer bead core to be secured thereto, passing between the radially outer bead core and the buffer rubber layer, so that a radially outward tension of the carcass caused by tire inflation acts less on the radially inner bead core than the radially outer bead core.

Abstract: The pneumatic radial tire comprises a carcass made of a ply of radially arranged cords toroidally extending between a pair of bead portions, a belt arranged outside the carcass in a radial direction of the tire, and a belt reinforcing layer of organic fiber cords arranged outside the belt in the radial direction of the tire, in which the organic fiber cord constituting the belt reinforcing layer has a strand construction and a twisting coefficient N.sub.t of 0.06-0.30 defined according to the equation.N.sub.t =T.times.(0.139.times.D/2.rho.).sup.1/2 .times.10.sup.-3 (1)whereinT: twisting number (turns/10 cm),D: total denier,.rho.: specific gravity (g/cm.sup.3).

Abstract: An organic fiber cord for rubber reinforcement satisfies relationships of S1.gtoreq.2.5, S2.ltoreq.1.8 and S2.ltoreq.S1-2.0 wherein S1 and S2 are dry heat shrinkage factors under particular conditions in order to improve the durability and dimensional stability of rubber articles without the degradation of other properties in the rubber article. When such an organic fiber cord is applied to a carcass ply of a pneumatic radial tire, the tire durability and uniformity are considerably improved.

Abstract: A front tire for-wheeled vehicles comprising a carcass of toric form having a high transverse curvature and provided with a central crown and two sidewalls terminating in a pair of beads for anchoring to a corresponding mounting rim, a tread band located on the crown and a circumferentially-inextensible belt structure disposed between the carcass and tread band. The belt structure at a radially external position is comprised of a layer of cord coils substantially disposed at a zero angle to the equatorial plane of the tire in axial side-by-side relationship and extended from one axial extremity of the belt to the other axial extremity of the belt. The winding thickness of the cord coils increasingly grows from the equatorial plane to the belt axial extremities.

Abstract: A process produces a tubular body with at least one dividing wall extending across its length and forming longitudinal chambers disposed next to each other. A foil strip is used whereby a dividing-wall strip or a section of dividing-wall strip is cut to length and is fastened at its lateral outer edges on the foil strip or section of the foil strip, with parallel alignment with the foil strip or section of foil strip. The lateral edges of the foil strip or section of foil strip are then joined with each other thereby either directly forming a tubular body or forming an endless tube, from which tubular bodies are then cut to length. The tube is then solidly joined with a tube head having a dividing bridge conforming to the arrangement of the dividing wall in the tubular body. The tube head has a dispensing aperture closable by a closure.

Abstract: A vehicle wheel is provided with a pneumatic tire and has a way to provide information. The pneumatic tire has at least at one predetermined location a rubber mixture that is permeated with magnetizable particles. An annular band of this rubber mixture contains the magnetizable particles anisotropically aligned in a peripheral direction of the tire. The tire can be used in a slip regulation system.

Abstract: A pneumatic radial tire includes a belt layer, comprised of steel cords having a lateral flat cross-section, arranged around an outer periphery of a tread portion of a carcass layer so that the diameter direction of the steel cords is made to follow the planar direction of the belt layer, the steel cord is made a flat 1.times.6 twist structure comprised of filaments of a filament diameter d of 0.20 to 0.40 mm, the long diameter D.sub.L and twist pitch P of the steel cord taken out from the tire are made with respect to the filament diameter d as follows:3.67 d-0.04.ltoreq.D.sub.L .ltoreq.3.67 d+0.1630d.ltoreq.P.ltoreq.45dand the elongation of the steel cord caused when increasing a load from 0.25 kg to 5.0 kg is made 0.25% or less.

Abstract: A pneumatic rubber tire with a chafer positioned around at least a portion of its bead component and intended for contacting a rigid rim of a wheel, wherein said chafer is composed of a rubber composition which is based upon a combination of a specified trans 1,4-polybutadiene polymer and a high cis 1,4-polybutadiene rubber. The rubber composition for the tire chafer component may also contain cis 1,4-polyisoprene rubber and/or styrene/butadiene rubber.

Abstract: A vehicle tire and wheel assembly for use in high brake heat generated service has an overall tire diameter (TD) of approximately 43 inches and an overall wheel diameter (WD) of approximately 24.5 inches to provide a ratio of approximately 1.76. The tire section height (H) is approximately 9.2 inches and the tire section width (W) is approximately 11.5 inches. The tire is of a radial construction containing steel reinforcing cords.

Abstract: A pneumatic radial tire comprising a tread portion, a pair of sidewall portions, a pair of bead portions each with a bead core therein, a carcass extending between the bead portions, a belt disposed radially outside the carcass and having a pair of edges, a rubber bead apex disposed in each bead portion and extending radially outwardly from the bead core, portions of the carcass one between each edge of the belt and the maximum tire width position are each provided therein with a rubber spacer disposed between axially adjacent carcass cords so that the cord spacing between the axially adjacent cords is in the range of from 0.55 to 5.5 times the diameter of the cords, whereby steering performance is improved without increasing the tire weight.

Abstract: A disposable undergarment forming apparatus and methods are provided for forming disposable undergarments. The apparatus preferably includes a core former positioned to form a stream of undergarment cores. The core former includes a mat securer positioned to secure each of a plurality of undergarment mats to a sheet of a polymeric material and a first separator positioned downstream from the mat securer for separating the stream of undergarment cores into a plurality of individual cores. An elastic waistband former preferably is positioned adjacent the core former for forming elastic waistbands. A waistband securer is positioned downstream from the core former and positioned to receive the elastic waistbands from the elastic waistband former for securing the waistbands to the plurality of individual undergarment cores to thereby form a chain of a plurality of undergarments. A folder is positioned downstream from the waistband securer for folding each of the plurality of undergarments of the chain.

Abstract: A run flat pneumatic tire is reinforced by a thin annular composite band imbedded in the crown portion of the tire in combination with a plurality of radial cords or plies in its sidewalls which have freedom in shear with respect to one another. The band is formed by a plurality of layers of material strips wherein each strip is wound in a helical pattern, with adjacent strips being wound at reverse angles to each other. Each layer is formed under sufficient pressure and at an elevated temperature whereby the band is prestressed in tension which decreases the maximum stress at the footprint area of the tire. The invention furthermore incorporates the method of imparting the prestress on the annular band during its manufacture.

Abstract: A pneumatic radial tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a carcass of at least one rubberized ply containing cords arranged in a radial direction and consisting of a main carcass body and a turnup portion. A belt is superimposed about a crown portion of the carcass, and a rubber filler is arranged between the main carcass body and the turnup portion above the bead core. The rubber filler is composed of three different rubber stocks, and a hardest rubber stock among these rubber stocks is arranged in at least an outer zone in the radial direction of the tire sandwiching a normal line drawn from the turnup end to the outer surface of the main carcass body at a cross section of the tire and perpendicular to the main carcass body. A rubber stock having a middle hardness is arranged between the outer surface of the main carcass body and the hardest rubber stock as a stress-mitigating rubber layer.

Abstract: A steel cord intended for use to reinforce rubber products is produced by drawing, into a steel filament of 0.10 to 0.40 mm in diameter and more than 3,000 N/mm.sup.2 in strength, a wire rod having a carbon content of more than 0.70% by weight, and twisting a plurality of such steel filaments together. Also a pneumatic tire is provided which employs in at least a portion of a reinforcing member thereof the steel cord improved in corrosion resistance and having an R.sub.1 /R.sub.0 ratio .times.100 which is less than 100, where R.sub.0 is the radius of spiral curvature of the spiraled steel filament resulting from untwisting said steel cord and R.sub.1 is the radius of spiral curvature of said steel filament of which the surface layer inside the spiral is removed by dissolving.

Abstract: A pneumatic tire comprises a bead core formed by helically winding and spirally laminating an organic or inorganic fiber cord obtained by twisting an organic or inorganic fiber reinforcing element in one direction and then twisting at least two twisted fiber reinforcing elements in a direction opposite to the twisting direction of the fiber reinforcing element, in which the cord is formed by successively twisting so that the twisting number in the last twisting is made larger than the twisting number in the initial twisting and the twisting directions from the initial twisting to the last twisting are made different to each other.