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:
An integral rim intended for mounting a tire having at least two beads and including, when viewed in meridian section, at least a first rim seat, a second rim seat, and a rim base which is without a groove. The first rim seat slopes downwardly towards the outside. The second rim seat has a generatrix, the axially inner end of which is on a circle of diameter at least as great as the diameter of the circle on which the axially inner end of the first rim seat is located. The assembly formed by such a rim and a supporting ring for the thread.
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).
Abstract:
The invention relates to a tire formed of a plurality of independent pneuic sectors (S) intended to be mounted on a single rim (J) but removable individually from said rim (J), they being inflatable individually or together. The sectors (S) include at least one reinforcing armoring (4) anchored on at least one circumferential bead wire (10) in each circumferential bead, which is the bead mounted on the wheel rim (J), the reinforcing armoring (4) being radially adjacent to a reinforcement armoring (8) of the tread (2). The circumferential bead wires (10) are connected to meridian bead wires (11) located in the sidewalls (50) of the circumferentially adjacent sectors (S).
Abstract:
An auxiliary wheel is to be paired with a main wheel of a vehicle, while the main wheel remains on the vehicle. The auxiliary wheel includes a disk having a wheel rim, as well as a tire mounted on the wheel rim. In order to securely mount the auxiliary wheel on the main wheel, a bolt is insertable through a hole in the disk of the auxiliary wheel, the hole being eccentric with respect to the rotational center of the auxiliary wheel. An arcuate guide slot is formed in the auxiliary wheel disk, the guide slot forming an arc of a circle centered on the hole. A threaded rod fits into the slot and can be threaded into the main wheel, and tightened when the centers of the main and auxiliary wheels become concentric after mounting.
Abstract:
A tire which can be used without an inner tube on a standard "safety" rim, each of the beads of which tire has, on the one hand, a base of a width L.sub.2, comprising essentially a cylindrical zone of diameter D.sub.2, equal to the diameter D.sub.1 of the cylindrical hump of the rim and having an axial width l.sub.23 which is between 0.15 L.sub.2 and 0.25 L.sub.2, and a frustoconical zone of an axial width l.sub.24 which is between 0.45 L.sub.2 and 0.65 L.sub.2, the generatrix of the frustoconical zone forming with the axis of rotation of the tire an angle .beta. such that tan .beta. is between 0.5 and 0.6, and, on the other hand, a reinforcing bead ring of an interior diameter D.sub.3 which is very little different from D.sub.1, the center O.sub.3 of a circle circumscribed around the cross section thereof being located at a distance L.sub.3 from the rim flange such that the clamp on the rim is at least equal to 0.45.