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:
A load-bearing structure for a bearing support intended to be mounted on a rim inside a tire fitted on a vehicle to support the tread of the tire in the event of a loss of inflation pressure is provided. The load-bearing structure includes a base, a crown, and an annular body connecting the base and the crown. The body includes a plurality of partitions distributed regularly circumferentially, extending axially substantially from one side to the other of the body and radially from the base to the crown with a mean orientation relative to the radial direction of between 10 and 50 degrees, in that two circumferentially adjacent partitions exhibit contrary orientations relative to the radial direction and in that two adjacent partitions define with the base and/or the crown cavities in the form of triangles or trapezoids.
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:
A load-bearing structure for a bearing support intended to be mounted on a rim inside a tire fitted on a vehicle to support the tread of the tire in the event of a loss of inflation pressure is provided. The load-bearing structure includes a base, a crown, and an annular body connecting the base and the crown. The body includes a plurality of partitions distributed regularly circumferentially, extending axially substantially from one side to the other of the body and radially from the base to the crown with a mean orientation relative to the radial direction of between 10 and 50 degrees, in that two circumferentially adjacent partitions exhibit contrary orientations relative to the radial direction and in that two adjacent partitions define with the base and/or the crown cavities in the form of triangles or trapezoids.
Abstract:
A vehicle rim (22-28; 251-252; 262; 272), of revolution, adapted for mounting a tire (30), this rim comprising a first (51; 512) and a second (52; 522) rim seat and a first and a second safety hump (571, 572) which are located axially to the inside of the seats, each of the rim seats being adapted to receive a bead (33) of the tire (30), each of the rim seats having a generatrix the axially inner end of which is on a circle of diameter DI greater than the diameter DE of the circle on which the axially outer end is located, at least one of the seats opening on to a groove (71-78; 791-793) arranged axially between the seat and the safety hump axially closest to the seat.
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°.