Abstract: A rim having a bearing support located between its two rim seats, which bearing support is intended to receive a support ring, is characterized in that this bearing surface comprises at least one surface clamping part, each surface clamping part being regularly distributed in the circumferential direction over the bearing surface and having a maximum external development Ds, measured on an enveloping surface concentric to the bearing surface, which is greater than the development Dp of the bearing surface, in order to create mechanical clamping between a support ring and the surface clamping part which is appropriate to ensure holding of the ring on the bearing surface during travel.

Abstract: A tire (1), a mounting rim (2) therefor and a circumferentially unstretchable 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 supporting ring (3) and a rim flange (24).

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 circumferentially unstretchable 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 supporting ring (3) and a rim flange (24).

Abstract: An assembly is formed of a tire (1), a mounting rim (2), and an annular bearing support (3) for the tread (10) of the tire, for running at low pressure or at zero pressure. The rim (2) has two seats (23', 23"), the first seat (23') having an outwardly inclined generatrix and being axially outwardly extended by a shoulder or hump (25'), and the second seat (23") having an inwardly inclined generatrix and being axially outwardly extended by a flange (24). The tire (1) has a radial carcass reinforcement (13) with a particular meridional profile and two beads (12', 12") adapted to the mounting rim (2). The tread supporting ring (3) is ovalizable and circumferentially inextensible.

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: A tire of the closed torus type is made solid with a rim due to bead wires hich hug a body tightly between themselves and the rim. At each lateral end of the rim, a shoulder is provided and extended by a seat. Diameter .phi..sub.s of the seat is always less than the shoulder diameter .phi..sub.c, and the shape of the bead wire assumes the shape of the rim over at least a 45.degree. sector.

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: Disclosed is a rim intended to form a safety unit with a tire and a body of oam rubber, which gives the tire the ability to roll in a deflated state. Lateral walls of a central groove receiving the body each include an undercut portion to retain the body effectively. The groove is delimited on opposite sides by lateral walls. The groove has an orifice formed therein for communication with atmospheric pressure.

Abstract: The transmission of an electric signal between a driving wheel and the vehicle exclusively by electric conduction requires the presence of two electrically conductive paths. One of the conductive paths includes suspended stationary elements and a bearing of the driving wheel. The end of the transmission is insulated from the ground and the part of the transmission not insulated from the ground is included in the other of the conductive paths.

Abstract: A device and electric circuit mounted on a wheel of a vehicle and to transmit via bearings an electrical signal for measurement of parameters such as the pressure and temperature of the tire. The measurement is made based on the conduction state of a semiconductor element coupled to a sensor sensing the tire pressure and/or temperature. Specifically observed are three resistances of sufficient different values: the resistance of a semiconductor element in the on-state, a resistance R.sub.o two orders of magnitude greater than the preceding one and the internal resistance of at least one semiconductor element in the off-state. The sensor and circuit ar integrated in a standard valve. In one embodiment, it is possible to operate an electric element mounted on the wheel.

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.