Abstract:
Rolling assembly comprising tire P, rim J, adapter connecting a bead and the rim. The adapter has axially outer (9) and inner (10) ends mounted on rim seat (7) having respective outer (16) and inner (20) reinforcers. Body (11) connects the outer (9) and inner (10) ends forming a single piece, an adapter seat (18) receives a bead and is situated at end (9), an adapter bearing face (21) in a plane perpendicular to the rotation axis, and situated on the axially inner face of outer end (9). Reinforcer (20) of end (9) is axially outside bearing face (21). The body comprises, opposite adapter seat (14), annular seat reinforcer (19) and the adapter comprises conductive strip (22) positioned over all or part of the circumferential perimeter of said adapter and along a complete path extending from adapter seat (14) to rim flange (8).
Abstract:
Adapter providing the connection between one tire bead and the rim. An axially inner end of the adapter is mounted on the rim seat, an axially outer end is mounted on the rim seat, a body connects said outer end to said inner end, a substantially cylindrical adapter seat receives one of said beads, and an adapter bearing face is substantially contained in a plane perpendicular to the axis. The reinforcer element of the axially outer end is entirely situated axially outside the bearing face. The body comprises, opposite the adapter seat, an annular seat protuberance, said protuberance comprising at least one rubber composition.
Abstract:
A sealing tube is wrapped around the rim and inflated such as to seal the gap between tire and rim if the seal between the tire bead and rim has lost its integrity. After this, the tire can be inflated to specified pressure at a slow rate using a portable compressor. The repair can be done at roadside on any vehicle using inflatable tires usually without demounting the wheel or even jacking up the defective wheel.
Abstract:
The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between said bead components, and a rubber chafer positioned around at least a portion of each of said bead components and intended for contacting a rigid rim of a wheel, wherein said chafer comprises an outer skin layer intended for contacting the rigid rim and an inner core layer disposed radially inward of the skin layer.
Abstract:
The present invention is a system which improves the installation and provides a seal between tubeless tires and the rims of the wheels upon which they are mounted. A pliant sealing member or ring (10) is placed over the base (21) or rim of the wheel The ring has an opening to match the valve opening (27) of the rim. A special valve stem sleeve (15) may be provided to enhance the sealing of the valve stem. The invention features a stretch zone (19) which allows universal fit for a range of wheel sizes and also accommodates the drop center (24) of wheels. A method of casting the ring (10) is disclosed which includes the design of a mold (40) and the production of twin rings which are cut when completed to form two separate rings (10). The sealing ring (10) may be made of vinyl having a durometer rating of between 50-75 and a thickness of 0.5-1.0 mm.
Abstract:
An elastomeric tire sealing ring for installation against a rim of a wheel to provide a sealing surface with a tire bead of a tire when a tire is installed on the wheel over the sealing ring, the sealing ring comprising a thermoplastic composition wherein the thermoplastic composition has a durometer reading of between 36 and 50 on the Shore D scale as per ISO 868; and a tensile strength of 7.0 MPa to 8.9 MPa at 10% elongation as determined with ISO 527 method.
Abstract:
The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between said bead components, and a rubber chafer positioned around at least a portion of each of said bead components and intended for contacting a rigid rim of a wheel, wherein said chafer comprises an outer skin layer intended for contacting the rigid rim and an inner core layer disposed radially inward of the skin layer.
Abstract:
An assembly comprising a tire (P) without an inner tube, provided with two beads and intended to be mounted on a mounting rim (J) comprising seats (440) extended radially towards the outside by flanges (R), and a rubber sealing piece (E) arranged between said rim and said tire, characterized in that the diameters (DP) of the tire bead seats are greater than the corresponding diameters (DJ) of the rim seats (440), said tire (P) being provided integrally with the sealing piece (E) formed of three parts which are integral with each other, a central part (51), made of material impermeable to the inflation gases, being placed axially between the beads of the tire, this central part (51) being extended axially beneath the beads of the tire by edges (50) integral with said beads, means being provided for facilitating the separation of the central part from the lateral parts.A process for manufacturing such an assembly.
Abstract:
A tire/wheel assembly includes a wheel having a rim, a pneumatic tire fitted to the rim of the wheel and a run-flat support member, the pneumatic tire having a tread surface and a hollow space, the tread surface having circumferential grooves extending in a circumferential direction of the tire, the run-flat support member being disposed in the hollow space of the pneumatic tire and having an annular shell and elastic rings, the annular shell comprising a support surface formed radially outward having a convexly curved surface portion with an annular apical line or face and two leg portions formed radially inward, the elastic rings supporting the two leg portions on the rim. The apical line or apical face of the convexly curved surface portion is offset in a direction of a center axis of rotation of the wheel so as not to be located in a position corresponding to the circumferential grooves when viewed from a radial direction of the wheel.
Abstract:
The present inventions are a run-flat tire and a tire/wheel assembly in which the workability of the tire-to-rim fit has been improved while including a core-type run-flat support member. The tire/wheel assembly is formed by fitting a pneumatic tire into a wheel rim. In the tire/wheel assembly, the run-flat support member constituted of a circular shell and elastic rings is inserted into a cavity of the pneumatic tire, in which the circular shell has a support surface thereof extended toward the periphery of the tire and leg portions along each end of the support surface, and the elastic rings are attached to the leg portions of the circular shell. Meanwhile, stages extending in a tire circumferential direction are formed on the inner walls of a pair of right and left beads in the pneumatic tire, and the elastic rings are locked into the stages.