Abstract:
The present invention provides a pneumatic radial tire of the present invention is characterized in that: in a cross sectional view in the tire widthwise direction in the predetermined state thereof, provided that: i) Hout represents a distance in the tire radial direction between the maximum width position from the tire equatorial plane and a ground-contact end on the vehicle outer side of the tread and Hin represents a distance in the tire radial direction between the maximum width position from the tire equatorial plane and a ground-contact end on the vehicle inner side of the tread, Hout
Abstract:
A pneumatic tire having a designated orientation for mounting to a vehicle includes a tread, sidewalls, beads including bead cores, respectively, and a carcass including a carcass ply. Each bead includes a rubber apex, an outer bead and an inner bead, the rubber apex includes an outer apex portion and an inner apex portion, the outer apex portion includes a first outer apex portion positioned inward from the carcass ply in the axial direction and a second outer apex portion positioned outward from the carcass ply in the axial direction, the inner apex portion includes a first inner apex portion positioned inward from the carcass ply in the axial direction and a second inner apex portion positioned outward from the carcass ply in the axial direction, and the second outer apex portion has height which is greater than height of the second inner apex portion in the radial direction.
Abstract:
The present invention provides a pneumatic radial tire of the present invention is characterized in that: in a cross sectional view in the tire widthwise direction in the predetermined state thereof, provided that: i) Hout represents a distance in the tire radial direction between the maximum width position from the tire equatorial plane and a ground-contact end on the vehicle outer side of the tread and Hin represents a distance in the tire radial direction between the maximum width position from the tire equatorial plane and a ground-contact end on the vehicle inner side of the tread, Hout
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:
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:
A tire for a vehicle wheel, comprising two sidewalls, a crown zone provided on its radially outer portion with a circumferential tread, and a bead arranged in the radially inner portion of each of the sidewalls. Each bead comprises a seat and an outer flange which are intended to come into contact with the rim, the seat having a generatrix, the axially inner end of which lies on a circle of diameter greater than the diameter of the circle on which the axially outer end is located. A carcass-type reinforcement structure extends substantially radially from each of the beads, along the sidewalls, towards the crown zone. Each bead includes a zone for anchoring the carcass-type reinforcement structure in the bead, a bearing zone for the bead against a suitable rim seat, and an intermediate zone, which is provided substantially between said anchoring zone and the bearing zone.
Abstract:
The present invention provides a unitary run flat tire (RFT) reinforcement that is formed into a relatively rigid shape. The reinforcement is insertable into a mold for an RFT support and can maintain the needed structural rigidity for such insertion. Further, the invention provides an RFT support that is molded and includes the RFT reinforcement. The invention also provides a wheel assembly including a tire, a rim, and an RFT support between the rim and the tire, where the support includes the RFT reinforcement. The RFT support can have a colored indicator formed or subsequently applied thereto to indicate one or more attributes of the support.
Abstract:
Wheel rim comprising two rim seats having different diameters, inclined outwards and extended axially outwards by two humps of small height, the rim seat of smaller diameter being connected axially on the inside to a bearing surface via a truncated conical portion and the rim seat of larger diameter being connected axially on the inside to the said bearing surface by a rib of small or zero height, whose axially interior wall has a generatrix that makes with the rotation axis an angle open radially and axially outwards and at the most equal to 30°, characterised in that the said rib, which has an axially inside wall of axial width at most equal to the axial width of the said second seat is provided circumferentially with at least two transverse grooves of small size.
Abstract:
A heavy-duty pneumatic radial tire and rim assembly ha s a support ring within the tire to support the tire in a deflated condition, wherein the inner diameter Di of the inside bead portion which is inside with respect to the vehicle is substantially 80 to 200 mm larger than the inner diameter Do of the outside bead portion.
Abstract:
A tire (1) a mounting rim (2) therefor, and a prop ring (3) for supporting the tread (10) of the tire when running at low or zero pressure. The tire (1) has a radial ply casing (13) on which the points that are furthest apart axially are radially apart close to seats (12B) of outwardly sloping beads (12). The seats (12B) engage sloping seats (23', 23") on the rim (2), which may have at least one mounting well (22), at least one cylindrical portion (21) for receiving the elongatable and circumferentially unstretchable rubber supporting ring (3) and a rim flange (24).