401 results about "Flat tire" patented technology

A non-pneumatic tire for supporting a load by working in tension comprising a generally annular inner surface, a generally annular outer ring, and an interconnected web having a plurality of web elements and comprising a plurality of generally polygonal openings. Web elements are sized, oriented and comprised of a material that facilitates buckling when subjected to a compressive load. By buckling, those elements in a deformed portion of the tire between a hub and a footprint region where the tire contacts a surface may assume a significantly reduced portion of the load, if any. This causes web elements in other portions of the interconnected web to operate in tension to support the load. Since the tire is non-pneumatic, it may be easier to maintain and may have a longer life than standard pneumatic tires since it eliminates the possibility of blowouts, flat tires, or tires operating with low air pressure. By virtue of the portion of the tire in the footprint region not bearing a significant portion of the load, non-pneumatic tire may also exhibit a more comfortable ride subject to less noise and vibration and improved handling capabilities.

The present invention relates to a tire cover or casing that includes two flexible sides and a central member. The flexible sides have a width sufficient to essentially cover a sidewall of a tire, while allowing, when mounted on the tire, access to the inner opening of the tire; and a securing device for securing the side over the sidewall of the tire. The central member has sufficient length to essentially cover a tire tread; and an adjusting device for adjusting the size of the tire cover or casing to fit the tire. The present invention further includes methods for changing a flat tire, for storing a seasonal tire, and for covering tires for use in a show room or the ground. Additionally, the present invention relates to wheel assemblies and emergency roadside kits, both including the tire cover.

A self-supporting pneumatic tire is molded in such a manner that ride comfort is improved, durability is increased, and a greater run-flat capability can be achieved. The self-supporting run-flat tire is molded such that the molded bead base width is equal or less than the rim width of the intended rim upon which the tire is to be mounted. By molding the tire with a bead width less than or equal to the rim width, the sidewall inserts are not subjected to additional stress during and after inflation of the tire and the strain energy is more evenly distributed through the sidewall pillar construction.

An intelligent tire pressure management system capable of real-time tire pressure monitoring, vehicle load detection, and automatic tire inflation and deflation for maintaining optimal tire pressure in a commercial vehicle. Additional functions include counting tire rotations for calculating and recording distance travelled for each tire, and detecting wheel sliding due to locked-up tires. The system includes a chassis-mounted control box connecting to the vehicle air supply, a hubcap-mounted dual wheel valve apparatus integrated with a rotary union assembly that connects through the vehicle hollowed axles to the air tubes from the control box. The inflation / deflation supporting dual wheel valve apparatus has an embedded electronic unit that monitors individual tire pressure and temperature in real time, and communicates with the control box over the power line. Furthermore a load sensor integrated with the control box provides the system with the current vehicle load information. With readily available real time tire pressure data and current vehicle load information, this system can intelligently adjusts tire pressure to the desired level when necessary and, as a result, prolongs tire life, improves fuel economy, reduces the vehicle maintenance costs, and promptly alerts the driver of low, leaky or flat tire conditions for enabling the driver to take immediate corrective actions.

A flat tire sealant storage container is provided for a flat tire repair device in a formed in a simple configuration which enables the container to be stably secured. The flat tire sealant storage container includes an air inflow pipe for injecting compressed air under pressure into the container filled with a flat tire sealant and a sealant outlet discharge pipe for discharging the flat tire sealant under pressure to the outside of the container. The flat tire sealant storage container further includes an attachable and detachable fixing device formed on the outer surface of the container. When the container is secured to an external object by the fixing device, the inlet of the sealant outlet discharge pipe is positioned at the inner lower part of the container.

A pneumatic tire is capable of operation during underinflated condition and the construction of sidewalls are configured to compensate for negative cambers acting upon the tire. The inboard side of the tire is softened in comparison to the outboard side of the tire. This is achieved by either forming an asymmetrical tire in either the tire profile or the internal construction.

The invention relates to a rubber composition for a tire sidewall part of a run-flat tire. Polybutadiene rubber of which the cis content is 35-40%, the trans content is 45-55% and vinyl content is 10-20%, and natural rubber are taken as primary materials and matched with various rubber ingredients to prepare the rubber composition in a common rubber molding process; the elasticity of the material achieves about 50%; the tensile strength achieves 18MPa; the hardness achieves about 74; the rubber composition can be used for a rubber sidewall support, and the anaerobic endurance can be improved.

Provided is a run-flat tire having improved durability when punctured and showing increased running distance and speed. A side part reinforcing layer for a run-flat tire comprising a rubber composition obtained by compounding 0.1 to 50 parts by mass of a reinforcing material of poly(p-phenylene terephthalamide) with 100 parts by mass of a rubber component containing 20 to 80% by mass of natural rubber and / or polyisoprene rubber and 80 to 20% by mass of polybutadiene rubber, and the run-flat tire using the same.

A dual purpose automotive tire apparatus for alternatively supporting a vehicle's tire and / or rim in the event of a flat tire or providing enhanced traction for a vehicle on a slippery road surface. The apparatus includes a pair of elongated flexible retaining members defining extended end portions, a plurality of evenly spaced support members carried by and extending laterally between the retaining members and each defining a first surface providing a tread and second surface providing a traction element. Attachment members are provided for joining the extended end portions of the retaining members together about the vehicle tire and / or rim such that the first surfaces collectively project outwardly therefrom for supporting said tire and / or rim in the event of a flat tire or such that the second surfaces collectively project outwardly therefrom for providing traction on a slippery surface.

Provided is a run-flat tire which has an excellent run-flat performance as well as a high high-speed straight running stability in the non-punctured state, a high steering stability on both of a dry road surface and a wet road surface and a good fuel efficiency. A run-flat tire which comprises at least two cross belt layers formed by rubberizing a steel cord and a tread rubber located successively, wherein a reinforcing rubber is provided inside a carcass. The above-described steel cord has a single twisted structure or a core / single layered sheath structure consisting of 6 to 10 steel strands having a strand diameter of 0.10 to 0.20 mm. The density of the implanted steel cords is 40 cords / 50 mm or more and the distance between the adjacent steel cords in the belt layer is 0.3 mm or longer. Moreover, the dynamic storage modulus E' (MPa) at 30 DEG C of the tread rubber and tand at 60 DEG C of the same respectively satisfy the relationships represented by the formulae: 5.0<=E' and 0.050<=tand<=0.240.