Abstract:
A tire is provided that includes a crown with a mid-plane S, two sidewalls, a first bead, of diameter Φ1, intended to be positioned on the outboard side of a vehicle, and a second bead, of diameter Φ2, intended to be positioned on the inboard side of a vehicle, such that Φ1>Φ2. When the tire is mounted on its working rim and inflated to its nominal pressure, the mid-plane S of the crown is axially offset towards the first bead relative to a mid-plane B of the beads by a positive or zero distance D.
Abstract:
A tire is provided that includes a crown with a mid-plane S, two sidewalls, a first bead, of diameter Φ1, intended to be positioned on the outboard side of a vehicle, and a second bead, of diameter Φ2, intended to be positioned on the inboard side of a vehicle, such that Φ1>Φ2. When the tire is mounted on its working rim and inflated to its nominal pressure, the mid-plane S of the crown is axially offset towards the first bead relative to a mid-plane B of the beads by a positive or zero distance D.
Abstract:
A method for manufacturing a tyre includes: assembling an unvulcanized tyre, the tyre including a crown, a first sidewall and a first bead, a second sidewall and a second bead, and a carcass reinforcement, each bead including a seat; and vulcanizing the unvulcanized tyre in a mould having an asymmetric configuration in order to obtain a vulcanized tyre, wherein the mould is such that, when the tyre is placed in the mould, in any meridian section, the seat of the first bead has an angle β1 with a rotation axis A and the seat of the second bead has an angle β2 with the rotation axis A, such that β1−β23, with the angles β1 and β2 being expressed in degrees, with the angles β1 and β2 being defined, for each bead, relative to an axis Ox and Ox′ parallel to the rotation axis A oriented positively towards outside of the tyre, and with the angles β1 and β2 being positive when extending radially outwards.
Abstract:
The object of the invention is a rotationally symmetric vehicle wheel rim (26) designed for the mounting of a tyre, comprising a first seat (30) intended to be positioned towards the inside of the vehicle and a second seat (32), the first seat (30) being extended axially towards the second seat (32) by a safety hump (40) and comprising a frustoconical bottom (34) which coincides locally with a cone of revolution (46) open towards the second seat (32) and coaxial with the rim (26), and an inner edge (36) which extends the bottom of the first seat (30) towards the second seat (32), such that on the hump side the inner edge (36) of the first seat (30) is tangential to a cone of revolution (48) coaxial with the rim (26) and open towards the second seat (32, with an apex angle larger than 103°.
Abstract:
A tire for a vehicle wheel, in which at least one of the tire's beads includes: an anchoring zone for anchoring the reinforcement structure and including an upturn of the reinforcement structure around the bead wire, a bearing zone disposed radially and axially external to the bead wire and surrounded by the turned-up portion of the reinforcement structure, and an anchoring closure zone disposed substantially radially to the outside of the bead wire. The location of the anchoring closure zone is defined on one hand by an imaginary bead wire axis (At) which is substantially axial and passes substantially radially externally to the bead wire, and on the other hand an imaginary axis alpha which passes substantially radially externally to the bearing zone. The angle alpha has an angle alpha of less than 50° and preferably less than 45° as measured between the bead wire axis (At) and the axis alpha, in a clockwise direction.
Abstract:
Tire designed to be mounted on a mounting rim comprising rim seats 11 that are inclined outwards. This tire comprises beads 1 designed to come into contact with the mounting rim, each bead having a circumferential reinforcing element which serves to anchor to a carcass reinforcement, this element having a center of rotation about which this element is able to rotate while the bead is being mounted on the rim. This bead has an external profile 8 which, viewed in meridian cross section, comprises a bead seat forming part 81, a side wall 83 and a connecting profile 82 connecting the seat and the side wall, at least one bead being such that the maximum distance L1 from the center of rotation of the bead reinforcing element to the points on the lateral profile 82 of the bead and the minimum distance L0 from the center of rotation of the circumferential bead reinforcement to the points on the lateral profile 83 of the bead satisfy the following relationship: K
Abstract translation:轮胎设计成安装在安装轮辋上,包括向外倾斜的轮辋座椅11。 该轮胎包括被设计成与安装边缘接触的珠子1,每个胎圈具有用于锚定到胎体增强件的周向加强元件,该元件具有旋转中心,该元件能够围绕该旋转中心旋转,而胎圈是 安装在轮辋上。 该胎圈具有外部轮廓8,其从子午线截面看,包括一个胎圈座形成部分81,一个侧壁83和连接座和侧壁的连接轮廓82,至少一个胎圈使得最大距离 L 1从胎圈加强元件的旋转中心到胎圈的侧面轮廓82上的点以及从周向胎圈加强件的旋转中心到胎圈的侧向轮廓83上的点的最小距离L 0 满足以下关系:<?in-line-formula description =“In-line formula”end =“lead”?> K <1%,WHEREK =(L 1 -L 0)/ L 1 < 公式描述=“内联公式”end =“tail”?>
Abstract:
Tire having two beads, at least one bead 1 of which has a seat 11 inclined toward the outside, this seat 11 being extended axially and radially to the outside by a lateral part 12. This bead 1 includes an anchoring device formed from at least one circumferential bead reinforcing element 5 and from a wedge-shaped profiled element 7 made of a rubber compound. A radial carcass reinforcement 4 is anchored in each bead to the circumferential bead reinforcing element 5, this tire being characterized in that the outwardly inclined bead seat 11 includes at least one circumferentially continuous rib 9 making at least one complete revolution, said at least one rib 9 being located axially to the outside of a plane perpendicular to the axis of rotation of the tire and axially tangential to the outside of the circumferential bead reinforcing element 5 in order to create a continuous line of contact pressure equal to or greater than the inflation pressure of the tire.
Abstract:
A method for manufacturing a tyre includes: assembling an unvulcanized tyre, the tyre including a crown, a first sidewall and a first bead, a second sidewall and a second bead, and a carcass reinforcement, each bead including a seat; and vulcanizing the unvulcanized tyre in a mould having an asymmetric configuration in order to obtain a vulcanized tyre, wherein the mould is such that, when the tyre is placed in the mould, in any meridian section, the seat of the first bead has an angle β1 with a rotation axis A and the seat of the second bead has an angle β2 with the rotation axis A, such that β1−β23, with the angles β1 and β2 being expressed in degrees, with the angles β1 and β2 being defined, for each bead, relative to an axis Ox and Ox′ parallel to the rotation axis A oriented positively towards outside of the tyre, and with the angles β1 and β2 being positive when extending radially outwards.
Abstract:
Assembly comprising a vehicle wheel, with symmetry of revolution, comprising a disc and a rim, the said rim comprising a first and a second seat which seats are intended to receive and to hold a first and a second bead of the tire, each seat having a substantially frustoconical bottom locally coinciding with a cone of revolution coaxial with the rim and open towards the other seat, the said rim defining, at the level of an axial straight line passing through the farthermost points of the outer portions, a width Lj and, on the other hand, a tire for a vehicle wheel, comprising two sidewalls spaced axially apart and defining, at the level of an axial straight line passing through the farthermost points, a width Lf, in which when the said tire is mounted on the said rim and inflated close to its nominal working pressure and when the said tire is substantially unflattened, the said width Lf is greater than the said width Lj.
Abstract:
Tire having two beads, at least one bead 1 of which has a seat 11 inclined toward the outside, this seat 11 being extended axially and radially to the outside by a lateral part 12, this bead 1 comprising an anchoring device formed from at least one circumferential bead reinforcing element 5 and from a wedge-shaped profiled element 7 made of a rubber compound, a radial carcass reinforcement 4 anchored in each bead to the circumferential bead reinforcing element 5, this tire being characterized in that the outwardly inclined bead seat 11 includes at least one circumferentially continuous rib 9 making at least one complete revolution, said at least one rib 9 being located axially to the outside of a plane perpendicular to the axis of rotation of the tire and axially tangential to the outside of the circumferential bead reinforcing element 5 in order to create a continuous line of contact pressure equal to or greater than the inflation pressure of the tire.