Abstract: Heat in a reflow soldering may cause a reaction between the electrolyte liquid and the positive or negative pole active material to result in a rapid inflation or a burst in a battery. A non-aqueous electrolyte secondary battery of a high capacity adaptable to reflow soldering can be produced by employing a positive pole active material or a negative pole active material constituted of particles coated with an oil repellent material.

Abstract: A tire component used in a pneumatic radial tire is a rubber-coated layer comprised of a given number of reinforcing elements separately arranged in parallel with each other, in which the reinforcing elements corresponding to at least 30% of all reinforcing elements included in the rubber-coated layer are divided into plural groups, and a distance between mutually adjoining and opposite reinforcing elements not grouped with each other is wider than a distance between mutually adjoining reinforcing elements separately arranged at equal spaces in the group. Thus, the occurrence of cracking at cut ends of the reinforcing elements is prevented to improve the tire durability.

Abstract: A tire component used in a pneumatic radial tire is a rubber-coated layer comprised of a given number of reinforcing elements separately arranged in parallel with each other, in which the reinforcing elements corresponding to at least 30% of all reinforcing elements included in the rubber-coated layer are divided into plural groups, and a distance between mutually adjoining and opposite reinforcing elements not grouped with each other is wider than a distance between mutually adjoining reinforcing elements separately arranged at equal spaces in the group. Thus, the occurrence of cracking at cut ends of the reinforcing elements is prevented to improve the tire durability.

Abstract: A tire component used in a pneumatic radial tire is a rubber-coated layer comprised of a given number of reinforcing elements separately arranged in parallel with each other, in which the reinforcing elements corresponding to at least 30% of all reinforcing elements included in the rubber-coated layer are divided into plural groups, and a distance between mutually adjoining and opposite reinforcing elements not grouped with each other is wider than a distance between mutually adjoining reinforcing elements separately arranged at equal spaces. Thus, the occurrence of cracking at cut ends of the reinforcing elements is prevented to improve the tire durability.

Abstract: A tire component used in a pneumatic radial tire is a rubber-coated layer comprised of a given number of reinforcing elements separately arranged in parallel with each other, in which the reinforcing elements corresponding to at least 30% of all reinforcing elements included in the rubber-coated layer are divided into plural groups, and a distance between mutually adjoining and opposite reinforcing elements not grouped with each other is wider than a distance between mutually adjoining reinforcing elements separately arranged at equal spaces in the group. Thus, the occurrence of cracking at cut ends of the reinforcing elements is prevented to improve the tire durability.

Abstract: A pneumatic radial tire for heavy duty vehicles comprises a radial carcass, a belt, a belt reinforcing layer and a tread, in which the belt has a particular structure formed by using a rubberized strip containing one or more cords therein, and the belt reinforcing layer comprised of at least one rubberized cord ply in a region corresponding to at least each side region of the tread, and the belt and the belt reinforcing layer satisfy a ratio h/h.sub.0 of not more than 65%. In the tire of the above structure, the occurrence of shoulder wear is controlled together with the avoidance of belt end separation and the durability is improved.

Abstract: A pneumatic tire comprising a pair of beads, and a carcass ply consisting of a main body located axially inside the beads and outer ply portions extending along the main body of the carcass ply axially outside each of the beads. A number of circumferentially spaced recesses are provided in the outer surface of the tire between a radially outer end of each of the outer ply portions and a location corresponding to a maximum width of the tire, and the recesses has a depth equal to 1/10 time to 1/2 time as large as a thickness of those portions of the tire which are provided with the recesses. The inclined angle of a base portion of each of the beads is about 15.degree. relative to the rotary axis of the tire. In the tire, 0.4P.ltoreq.W.ltoreq.0.8P and B.ltoreq.0.

Abstract: A pneumatic tire includes a toroidal carcass anchored by at least a pair of bead cores and a belt having strips. The strip has as reinforcing elements a plurality of zigzag or wave-shaped cords or filaments arranged side by side around a crown of the toroidal carcass. The strip is coated with a high molecular weight material less in modulus of elasticity than the reinforcing elements. Waves of the reinforcing elements of the strips are arranged in width directions of the belt so that ratios of amplitudes to wave lengths of the waves are maximum at side edges of the belt. The ratios are preferably progressively increased toward the side edges of the belt. Ratios of amplitudes to pitches of the waves are 0.005-0.175 and ratios of pitches of the waves to maximum circumferential lengths when filled with a normal inner pressure is less than 0.025.

Abstract: A pneumatic tire comprises a radial carcass of at least one carcass ply wound around each of bead cores from inside toward outside to form a turnup portion, an outer ply inclusive of the turnup portion containing cords each having a modulus of elasticity of not less than 2500 kg/mm.sup.2 and a diameter d, and a rubber stiffener arranged at its radially inward portion between the carcass ply and the outer ply. In a bead structure of such a pneumatic tire, the stiffener is divided into an inner stiffener portion and an outer stiffener portion around a specified boundary plane, and each of these stiffener portions is comprised of rubber having a given Shore A hardness, and a volume ratio of the outer stiffener portion in the stiffener is not less than 10%.

Abstract: A heavy duty radial tire includes at least one radial carcass extending from one bead portion to the other bead portion and using inextensible cords and a belt arranged outwardly of the radial carcass for reinforcing a tread of the tire. The tire comprises, during expanding of the tire from 5% to 100% of a normal inner pressure, a first profile portion expanding radially outwardly in a tread zone, a second profile portion depressing axially inwardly of the tire in a radially outer zone of a sidewall from one end of said tread to a tire maximum width position when filled with the normal inner pressure, and a third profile portion expanding axially outwardly of the tire in a radially inner zone of the sidewall from the tire maximum width position when filled with the normal inner pressure to a parting point of the sidewall from the rim, thereby properly distributing strains occurring in the tire in filling with the normal inner pressure.

Abstract: A pneumatic radial tire including a carcass layer having cords embedded therein and arranged perpendicular to an equatorial plane of the tire, and a belt layer including at least one belt ply having a large number of cords embedded therein, the cords including one or more filaments. The cords are disposed radially outside of said carcass layer, arranged substantially in parallel to the equatorial plane of the tire and bent in a wavy or zigzag form. At least those of the cords or filaments located at widthwise outermost locations in the parallel belt ply satisfy the following expression:d.times.a/.lambda..sup.2 .ltoreq.0.005and the cords or filaments in the parallel belt ply satisfy the following expression:a/.lambda..ltoreq.0.1wherein d is a filament diameter of the cords or filaments; .lambda. is a wavelength of the form; and a is one half of the amplitude of the form.

Abstract: A pneumatic tire involves a toroidal carcass ply extending between a pair of beads. The carcass ply consists of a main body located axially inside the beads and a pair of outer ply portions each extending along the main body of the carcass ply and on an axially outer side of the bead. A recess is provided on an outer surface of the tire between a radially outer end of each of the outer ply portions of the tire and the tire maximum width location such that a part of the recess is located in a zone surrounded by a curve C--C, a curve D--D, and an E-axis. The curve C--C satisfies d/s=1-0.825.times..sqroot.2.

Abstract: A pneumatic tire for a passenger car includes a toroidal carcass anchored by a pair of beads and a belt made of laminated strips. The strips have a number of reinforcing elements of cords or filaments surrounding a crown of the toroidal carcass and are coated with a high molecular weight material having a modulus of elasticity less than that of the reinforcing elements. The belt is of a laminated construction of a first layer and a second layer of a single strip. The first layer has wave-shaped reinforcing elements arranged side by side and directing in parallel with an equatorial plane of the tire, while the second layer has reinforcing elements arranged in parallel with each other at angles of 15.degree.-75.degree., preferably 35.degree.-60.degree. with respect to the equatorial plane.

Abstract: A pneumatic radial tire with high durable bead portions includes a pair of bead portions, a pair of sidewalls and a tread extending between the sidewalls, and further includes as a body reinforcement a carcass extending between the bead portions and consisting of plies whose cords are radially arranged. At least one ply being turned up about bead cores of the bead portions from inside to outside of the tire to form a turn-up portions. A carcass pass line in radial section of the tire in its self-holding position filled with 5% of a normal inner pressure under no-load condition includes curvature changing areas in a carcass profile curved toward the turned-up portions in the proximities of positions corresponding to a height of turn-up ends of the ply from a rim diameter line to cause compressive stresses in the bead portions near to the turn-up ends of the ply by deformations of the carcass when the normal inner pressure is filled in the tire.

Abstract: A pneumatic radial tire having at least one carcass ply, distal ends of which are folded back axially outwardly about a pair of bead cores to form respective turn-up portions. A hard rubber sheet is disposed on the outer side of each turn-up portion in such a manner as to partially overlap with the same in a mutually space-apart relationship, and a soft rubber material which is softer than the hard rubber sheet is interposed between the turn-up portion and the hard rubber sheet, thereby reducing the amount of stress and heat ocurring in the vicinity of the end portions of the turn-up portions of the carcass ply.

Abstract: A high durable pneumatic radial tire includes reinforcing belts of at least four cord layers whose cords are arranged in parallel with each other and coated with rubber. These cord layers are laminated about a crowd region of a radial carcass with the cords intersecting with each other over a crown circumference to reinforce a tread of the tire. The cord layers are divided into two groups of positive and negative signs by signs of inclined angles of projections of the cords of the respective cord layers onto an imaginary coordinate plane including a rotating axis of the tire. The cord layers in each of the groups are wider as they are arranged on further radially outer sides. The maximum width of the cord layers of the one group is much narrower than a maximum width of the cord layers of the other group. In this manner, shearing strains caused by load acting upon the tire in rubbers between the cord layers near to side ends of the cord layers in contact with a tread rubber on the reinforcing belts.

Abstract: A crown portion of a pneumatic tire comprising at least one radial carcass ply and a belt of at least two cross belt layers is reinforced by arranging a strip containing wavy or zigzag-like cords or filaments between the carcass ply and the belt as a crown reinforcing layer.

Abstract: A pneumatic radial tire with high durable bead portions includes a pair of bead portions, a pair of sidewalls and a tread extending between the sidewalls, and further includes as a body reinforcement a carcass extending between the bead portions and consisting of plies whose cords are radially arranged. At least one ply being turned up about bead cores of the bead portions from inside to outside of the tire to form a turn-up portions. A carcass pass line in radial section of the tire in its self-holding position filled with 5% of a normal inner pressure under no-load condition includes curvature changing areas in a carcass profile curved toward the turned-up portions in the proximities of positions corresponding to a height of turn-up ends of the ply from a rim diameter line to cause compressive stresses in the bead portions near to the turn-up ends of the ply by deformations of the carcass when the normal inner pressure is filled in the tire.

Abstract: A strip-like reinforcing laminate is comprised of at least two laminated strips each containing wave-like or zigzag reinforcing elements covered with a particular polymer material, wherein each reinforcing element in each of these strips has interlaced portions crossly lying on at least two reinforcing elements included in the adjoining strip, and the reinforcing elements in all of these strips are aligned in the same direction. Further, such a strip-like reinforcing laminate is used as a reinforcement in various parts of a pneumatic tire.

Abstract: A pneumatic radial tire includes a carcass layer consisting of at least one carcass ply having cords embedded therein and extending substantially in radial directions, a tread arranged radially outwardly of the carcass layer, and a belt layer consisting of at least tow layers of belt plies having cords embedded therein intersecting with each other at angles within 10.degree.-40.degree.. The tire comprises a reinforcing layer arranged between the carcass layer and the belt ply arranged radially outermost and consisting of at most two layers of reinforcing plies having cords embedded therein substantially in parallel with an equatorial plane. Both outer ends of the reinforcing layer are positioned inwardly, in width directions, of locations spaced apart one fifth of a tread width of the tire from shoulder ends. Outer ends of at least one reinforcing ply are positioned inwardly, in the width directions, of outermost ends of main grooves in the tread between center ribs and side ribs.