A pneumatic tire includes a bead core including end portions in a width direction formed as a vertical line along a radial direction, the vertical line has a length of 31% to 45% of a core height, in two adjacent bead core layers of first, second and third layers of the bead core, the number of…
A tire comprises a pair of flexible bead wires () of reduced mass. Each bead wire () has the form of a closed circumferential ring, bracing the bead of the tire () against the rim () and comprising a first part made of a first material M taking the form of textile cords (), the first part…
A cable bead comprising an annular core and a side wire spirally wrapped up around the annular core, wherein the annular core is made up of a round steel wire made to circle once or made, without being stranded, to circle 2 to 10 times side by side, and wherein the side wire is a round steel wire…
In a pneumatic tire, a bead core has end portions in a tirewidth direction formed as vertical lines along a tireradial direction. A length of the vertical lines is from 20% to 30% of a core height. In two adjacent bead core layers of first, second and third layers, the radial outer layer…
A pneumatic tire (1) is provided in a bead portion (4) with a bead core (5) formed of a bead wire (20); the bead core (5) has a wound single bead wire structure formed from turns of the single bead wire (20), and has at least three wire layers (10); each side face of the bead core (5) has a shape…
The present invention provides a pneumatic tire having a bead core embedded in a bead portion of the tire, the bead core being constituted of a strand as a rubber-coated single bead wire wound around the bead portion to be juxtaposed in plural columns in the axial direction and stacked in plural…
A pneumatic tire comprising a pair of axially spaced apart annular bead cores (11) is disclosed. A first carcass ply (14) is wrapped around each bead core (11) and has a first pair of carcass ply turnup portions (14A) substantially contiguous with the first carcass ply (14) from the bead core (11)…
A tire comprising a reinforcement structure comprising cords of a TRIPLEX steel is disclosed. The cords may have a 2 + 1 construction, a 2 x construction, a 2 + 2 construction or 5 x construction. The TRIPLEX steel is of the generic composition Fe x Mn y Al z C containing 18-28 % manganese, 9-12 %…
A heavy duty pneumatic tire (1) comprises a carcass ply (6A) of steel cords turned up around a bead core (5) in each bead portion (4) so as to form a pair of turned up portions (6b) and a main portion (6a) therebetween. The steel cords (6c) of the carcass ply are rubberized with a topping rubber…
This invention relates to a pneumatic tire for a motorcycle improving a cornering stability, and more particularly to a pneumatic tire for a motorcycle comprising a pair of bead portions 2, a carcass 1 wound around a bead core 3 embedded in the respective bead portion, a tread portion arranged on…
A pneumatic tire comprises a pair of bead portions, a carcass comprising a carcass ply extending between the bead portions, a pair of bead cores each disposed in each bead portion, the bead core comprising an annular core formed from one monofilament cord and a sheath having at least one sheath…
A plurality of reference signals output from a controller which computes an operation amount of an electric actuator is subjected to the logical operation, and the power supply to a drive circuit for the electric actuator is shut off based on an output by the logical operation.
A light weight cable bead core (30) is described having an inner core (33) made of a metal wire (34) with an outer sheath (35) of steel cord wires (36). Each cord (36) is made of a plurality of filaments (37). The bead core (30) is particularly suited for heavy-duty service conditions in tires…
A bead core (11) is formed by spirally winding a single cord (13) and stacking spiral windings (15) to each other, wherein a winding start end (M) of the single cord (13) is shifted from an axially outermost or innermost position of a radially innermost first stage to a next position at least…