Patent classifications
B60C15/0018
TIRE
A tire (10) includes bead portions (16) in which bead cores (22) of resin-covered cord (20) are respectively embedded, and reinforcing layers (14) that are formed of a reinforcing material (30) covered by a resin material, that are each thermally welded to the respective bead core (22), and that extend from the respective bead portion (16) to a side portion (18).
TIRE
A tire whose pressure-proofing performance and impact durability can be improved, is provided. The tire includes: a tire frame member which is made of resin and includes: a bead portion covering a bead core; a side portion extending outwardly in a tire radial direction from the bead portion; and a crown portion extending inwardly in a tire width direction from the side portion, and the tire also includes a reinforcing layer which includes plural cords covered by resin or rubber and which extends from the bead portion to the side portion of the tire frame member to cover at least an inner peripheral surface of the side portion.
Pneumatic tyre equipped with a transponder
Pneumatic tyre having a toroidal carcass, which has a body ply that is partially folded onto itself and therefore having two lateral flaps; two annular beads, each of which is surrounded by the body ply and has a bead core and a bead filler; an annular tread; a pair of sidewalls; a pair of abrasion gum strips; an innerliner which is impermeable to air and is arranged within the body ply; and a transponder which is arranged between the body ply and the innerliner at a flap of the body ply and is arranged at a distance of less than 7 mm from an edge of the body ply.
RUN-FLAT TIRE
A run-flat tire comprises a tread portion, sidewall portions, bead portions, and a carcass ply extending between the bead portions. The sidewall portions are each provided therein with a sidewall reinforcing rubber layer having a crescent-shaped cross sectional shape and disposed on the axially inside of the carcass ply. The sidewall portions are each provided in the axially outer surface thereof with a rim protector which projects radially outward most on the radially outside of the radially inner edge of the sidewall reinforcing rubber layer. The bead portions are each provided therein with an axially inside core and an axially outside core between which each radially inner edge portion of the carcass ply is secured. When measured along a normal line drawn normally to the carcass ply from an apex of the rim protector, the thickness of the sidewall reinforcing rubber layer is in a range of from 29% to 35% of the thickness of the tire.
Method of making a tire with multiple body plies
A method of making a tire includes providing a first body ply having a first width and laying a second body ply above the first body ply. The second body ply has a second width less than the first width. The method also includes laying a third body ply above the second body ply. The third body ply has a third width greater than the first width. The method further includes laying a first bead at a first location above the third body ply, laying a second bead at a second location above the third body ply, laying a first stabilizer ply insert at a third location above the third body ply, and laying a second stabilizer ply insert at a fourth location above the third body ply. The third location is between the first location and the second location, and the fourth location is between the third location and the second location.
Tire with dissymmetrical beads
A tire intended to be mounted on a drop-center rim with a flange height G and a radius of curvature R1 has first and second beads each having an annular reinforcing structure having a radially innermost point, the radial distance between the radially innermost point and the mounting rim being A, and a carcass reinforcement anchored in the two beads by being turned back around the annular reinforcing structure forming, within each bead, a main strand and a turned-back strand, in which the thicknesses EB1 of the first bead and EB2 of the second bead are the distance separating (i) the point on the main strand that is at a distance R from the radially innermost point, where R=G+(R1)/2A, and (ii) the point on the exterior surface of the bead that is at the distance R from the radially innermost point, and in which |EB1EB2|1 mm.
PNEUMATIC TIRE
A pneumatic tire comprises a carcass formed of a carcass ply extending between a pair of bead portions in a toroidal shape, and a bead core disposed in a respective one of the bead portions, the bead core comprising an axially inner core and an axially outer core respectively disposed on an axially inner side and the axially outer side of the carcass ply. The bead portion comprises an inner bead apex rubber extending radially outward from the inner core, and an outer bead apex rubber extending radially outward from the outer core. An outer apex height Ho from a bead base line to a outer end of the outer bead apex rubber is in a range of from 120% to 150% of an inner apex height Hi from the bead base line to the outer end of the inner bead apex rubber.
Tire Including A Knitted Fabric
A tire that comprises a knit (44) comprising: columns (C1, C2, C3, C4) of loops (B), the loops (B) of one and the same column (C1, C2, C3, C4) being arranged one after the other substantially in an overall direction (X1) referred to as the main direction; and rows (R1, R2, R3, R4) of loops, the loops (B) of one and the same row (R1, R2, R3, R4) being arranged one beside the other substantially in an overall direction (Z1) referred to as the transverse direction.
The knit (44) has, in the main overall direction (X1) and/or the transverse overall direction (Z1), a force at 100% elongation greater than or equal to 250 N, the force at 100% elongation being determined from a force-elongation curve obtained by applying standard ISO 13934-1:2013 to the knit (44) embedded in a standard elastomer matrix.
PNEUMATIC TIRE
A pneumatic tire comprises a bead portion, a carcass, a bead reinforcing layer and a bead apex rubber. The carcass comprises a first carcass ply of carcass cords arranged at an angle of 60 to 90 degrees with respect to the tire circumferential direction. The bead reinforcing layer comprises a first reinforcing ply of bead reinforcing cords arranged at an angle of 60 to 90 degrees with respect to the tire circumferential direction. The first carcass ply is composed of a main portion and a turnup portion continued from the main portion. The first reinforcing ply comprises a first portion and a second portion continued from the first portion. The radially outer end of the second portion is located on the axially outer side of the bead apex rubber and on the radially inner side of the radially outer end of the bead apex rubber.
TIRE WITH SIMPLIFIED CARCASS REINFORCEMENT
A motor vehicle tire is designed for standardized manufacture of its carcass reinforcement comprising two layers. A first layer (41) is anchored in the two beads (50) by a turn-up (53) around a bead wire (51), so as to form, in each bead, a main part (52) and a turn-up (53). A second layer (42) is laid axially and radially on the outside of the first carcass layer, and positioned in the bead axially on the inside of the turn-up of the first carcass layer. The first carcass layer (41) has a turn-up (53) of length HNC1 ranging between 10% and 30% of the height of one of the sidewalls (30); the length LREC is comprised in the range [0.6*HNC1; 0.9*HNC1], and the maximum value of the distances (LNDEG, LNDED) is comprised in the range [2; 18] mm.