Abstract: An attachment for a vehicle wheel enables driving operation with limited tire function. The attachment includes a base body and a fastening device for fastening the attachment to a rim of the vehicle wheel, wherein the base body, when seen in an axial direction, is circular or annular in shape.

Abstract: This disclosure relates to an attachment for a vehicle wheel which allows the vehicle to be driven with limited tire functions.

Abstract: An attachment is provided for a vehicle wheel for enabling a driving operation with restricted tire functions. An attachment system may include such an attachment and a wheel disc of the vehicle wheel.

Abstract: An attachment for a vehicle wheel enables driving operation with limited tire function. The attachment may include a base body, a tread surface for contacting a road surface, at least one bracing apparatus configured to engage with a hook portion behind a portion of a rim of the vehicle wheel and a bracing mechanism having a contact portion configured to actuate the bracing apparatus and to bring the hook portion into engagement behind the portion of the upon actuation of the contact portion.

Abstract: Provided is a wheel which is inexpensive, light, and sufficiently rigid. A wheel 6a includes an annular rim 60 to which a tire 6b is externally fitted, a hub 61 which is arranged at a center portion of the rim 60 and to which an axle is connected, and a disk 62 which is attached with the rim 60 at a periphery portion and which covers one side of the wheel 6a. The disk 62 includes a planar portion 62a and a first rib 62b provided at a surface of one side of the planar portion 62a and extending in the radial direction. The planar portion 62a is provided with a first groove 62d at a surface of the other side at a position corresponding to the first rib 62b.

Abstract: A mounting arrangement for adding an auxiliary wheel spaced from an existing wheel of a motor vehicle including two or more generally cylindrical spacers connected together abutting end to end, an inner spacer attached to a brake assembly member with a preexisting wheel rim compressed between an inside face of the inner spacer and the brake assembly member, and an outer spacer connected to the inner spacer by bolts, and holding stud bolts extending out and received through holes in the auxiliary wheel rim, with lug nuts fixing the rim of the auxiliary wheel against the outside end of the outer spacer. An intermediate spacer between the inner and outer spacers may alternatively be provided detachably connecting the inner and outer spacers together, attached to an outside end of the inner spacer and to the inside end of the outer spacer by bolts.

Abstract: Disclosed is an auxiliary wheel comprising a wheel hub and a tire. The auxiliary wheel is fixedly mounted on a wheel of an automotive vehicle in a manner that the auxiliary wheel and the wheel have a common rotary axis. The auxiliary wheel may further comprise one or more locking components located on the wheel hub, and the locking component is used to fix the auxiliary wheel on the wheel hub of the wheel, so that the auxiliary wheel is driven by the wheel hub of the wheel. The present invention further relates to an unassisted lifting jack used when the auxiliary wheel is mounted. The unassisted lifting jack comprises a climbing block and a supporting block connected in a rotary way, the climbing block and the supporting block have a common supporting bottom, and the climbing block has a slope provided to the auxiliary wheel for climbing.

Abstract: Provided is a core (10A), in which split pieces (10P) adjacent to each other in a circumferential direction are coupled by a coupling pin (11), an axial direction of which is disposed in a width direction of the split pieces (10P), at a radial inner circumferential side thereof, and split surfaces (10a, 10b) formed by both of the split pieces (10P, 10P) include a first load receiving surface (10c) and a second load receiving surface (10d) having a predetermined angle with respect to a radial direction at a radial outer circumferential side from the coupling pin (11).

Abstract: Interface disc for a vehicle wheel, comprising: at least one substantially central attachment element designed to allow the said disc to be attached to a wheel; a plurality of substantially radial arms connected to the attachment elements and extending radially outwards from a substantially central portion of the said disc as far as a substantially peripheral portion of the said disc; an energy absorption surface collaborating with the said arms and configured to form a wall between the said substantially central portion of the disc and its substantially peripheral portion; at least one circumferential reinforcing element collaborating with the said arms and the modulus of which is substantially higher than that of the energy absorption element.

Abstract: A wheel on a vehicle having a flat tire may be protected by attaching a first semi-cylindrical shell having a first planar end to the wheel, and attaching a second semi-cylindrical shell to the first semi-cylindrical shell. The first semi-cylindrical shell and the second semi-cylindrical shell are secured together so as to form a cylindrical shell of diameter having a cylindrical wall which covers a tread surface of the flat tire. The first semi-cylindrical shell is attached to the wheel to cover a first portion of a tread surface of the flat tire; and, after attaching the first semi-cylindrical shell, the wheel is rotated. The first portion of the tread surface does not contact a ground surface prior to the rotation step, but does contact a ground surface through the first semi-cylindrical shell after the rotation step. A connector for connecting the semi-cylindrical shells to the wheel is also disclosed.

Abstract: A wheel on a vehicle having a flat tire may be protected by attaching a first semi-cylindrical shell having a first planar end to the wheel, and attaching a second semi-cylindrical shell to the first semi-cylindrical shell. The first semi-cylindrical shell and the second semi-cylindrical shell are secured together so as to form a cylindrical shell of diameter having a cylindrical wall which covers a tread surface of the flat tire. The first semi-cylindrical shell is attached to the wheel to cover a first portion of a tread surface of the flat tire; and, after attaching the first semi-cylindrical shell, the wheel is rotated. The first portion of the tread surface does not contact a ground surface prior to the rotation step, but does contact a ground surface through the first semi-cylindrical shell after the rotation step. A connector for connecting the semi-cylindrical shells to the wheel is also disclosed.

Abstract: The present invention relates to a process for the production of cellular polyurethane (PUR) casting elastomers and moulded articles based on 1,5-naphthalenediisocyanate (NDI)-prepolymers.

Abstract: A tire clamp substituting for a spare tire for a vehicle is provided. When a tire is punctured, the punctured tire is substituted with a spare tire. In this invention, a tire clamp is substituted for a spare tire.

Abstract: A circular tire rim has intermediate its ends an annular drop-center section, and coaxially on opposite ends thereof enlarged diameter, circumferential flange sections engageable with the beads of a tubeless tire to support the tire on the rim. Adjacent one end thereof the drop-center section has projecting from its outer peripheral surface a pair of projections angularly spaced 180° from each other about the axis of the rim. Removably secured coaxially on the drop-center section of the rim is an annular runflat device the outer peripheral surface of which normally is radially spaced from the inner peripheral surface of the properly inflated tire on the rim, but engageable by and slidably supporting the inner peripheral surface of the tire when the latter is operated in a runflat mode. The two projections on the drop-center section of the rim seat in registering recesses formed in the inner peripheral surface of the runflat device to prevent any relative movement between the device and the rim.