Run-Flat Tires for Emergency Mobility

A tire auxiliary inner support device for run-flat tires that improves safety of heavy-duty vehicles like trucks. The device has sector-shaped support blocks connected around the tire rim to provide hoop strength when the tire loses pressure. The support blocks are made of carbon fiber skeletons with locking bolts and positioning pins to adjust spacing. The carbon fiber provides high strength and light weight compared to polymer-based supports. The device allows heavy-duty vehicles to keep moving after a tire blowout without risk of failure or loss of control.

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Run-flat tire design with improved durability and puncture resistance compared to traditional run-flat tires. The tire has features like a carcass frame, sidewall reinforcing profiles, bead fillers, and carcass reinforcing profiles to provide overall tire support, enhance sidewall strength, and prevent deformation issues when run flat. This improves durability under deflation, reduces stress concentrations, and maintains tire shape better compared to adding integral supports.

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Reinforcement profile for run-flat tires that improves their zero-pressure driving capability. The profile includes a bead filler with a steel wire, a carcass frame, carcass reinforcement, an airtight part, a buffer strip, and a sidewall reinforcing component. The airtight part contacts the carcass frame and seals against air leakage when the tire loses pressure. The buffer strip between the airtight part and carcass frame absorbs deformation forces to prevent tearing. The sidewall reinforcing component provides additional strength to the sidewall. This profile design allows the tire to continue driving without air pressure for a longer distance compared to conventional run-flat tires.

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Safety puncture-proof tire with multiple layers of puncture protection to prevent flat tires from road debris. The tire has a rectangular block inside the wheel frame, surrounded by a cushion belt, inner tube, tire, and layers of reinforcement. The outer tire wall has a styrene-butadiene rubber reinforcement layer fixed to the chlorosulfonated polyethylene rubber reinforcement layer, followed by a high manganese steel anti-puncture layer. The inner tube has a resin anti-puncture layer, covered by an aramid fiber layer. This multi-layered puncture protection system provides robust defense against punctures and damage from road hazards.

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Flat-run tire with self-puncture recovery capability that allows uninterrupted driving even after a tire puncture occurs. The tire maintains structural integrity, supports vehicle weight, and provides traction after a puncture to prevent sudden loss of pressure. The tire design involves a puncture recovery mechanism that captures and utilizes the remaining air in the tire after a puncture to provide temporary run-flat capability. It also includes a run-flat system that distributes the load evenly across the tire to prevent further damage and ensure adequate control.

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Run-flat tire design that improves durability and performance when driven with zero air pressure. The tire has a reinforcing rubber layer on the sidewall, a bead reinforcing layer between the carcass and apex, and a crescent-shaped reinforcing rubber layer on the shoulder. The reinforcing rubber layer on the sidewall provides rigidity. The bead reinforcing layer made of steel wire strengthens the sidewall and bead area. The crescent-shaped shoulder reinforcement reduces deformation when driven flat. These reinforcing layers improve durability and support when air pressure is low.

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Vehicle tire with improved safety and durability after punctures. The tire has an internal support system that prevents excessive deformation and blowouts when air pressure is low. The support system is a cavity filled with items like airbags, balls, and fluid. These components absorb energy from impacts and expand to replace damaged ones. This allows the tire to maintain shape and support when punctured, reducing deformations and enabling safe driving until repairs can be made.

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Run-flat tire with improved support and stability after blowouts. The tire has a strong explosion-proof capability to prevent vehicle instability and loss of control when a tire blows out. It achieves this by adding a support assembly with springs, frames, and sliding blocks inside the wheel hub. The assembly provides an internal buffer and reinforcement to prevent wheel hub deformation and sidewall deviation when the tire loses air pressure. This maintains vehicle balance and stability after a blowout.

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Low rolling resistance run-flat tire structure that improves safety and durability when the tire loses air pressure. The tire has steel belts extending into the shoulder and sidewall areas to provide support in those locations when the tire is deflated. This prevents excessive wear and sidewall collapse. The belts also help support the tire if it loses air, allowing the vehicle to continue driving. The sidewall has reinforcement to further enhance run-flat capability. The tire has a crescent-shaped carcass in the sidewall that extends into the shoulder.

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A pneumatic vehicle tire with emergency running properties that allows the tire to be driven safely for a certain distance if it loses air pressure. The tire has features like a profiled tread, multi-layer belt, sidewalls with reinforced profiles, and a carcass. The reinforced profiles in the sidewalls provide the emergency running ability. The tire can continue driving without air pressure for a limited distance before needing replacement.

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Run-flat tire capable of traveling a certain distance even when the internal pressure drops to about atmospheric pressure. The tire includes a pair of beads provided on both sides in the tire width direction, a pair of sidewalls extending outward in the tire radial direction from each of the pair of beads, a tread arranged between the pair of sidewalls, and a space between the pair of beads.

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Explosion-proof tire with improved durability and comfort when run flat. The tire has an inner liner, a support rubber, and a carcass. The support rubber provides run-flat capability when the tire loses air pressure. The support rubber composition is a composite of different rubber types with varying hardnesses. This composite rubber prevents delamination and blowouts by distributing deformation forces more uniformly compared to a single rubber type. The support rubber also uses a thinner glue layer compared to a solid support, reducing tire weight and rolling resistance.

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Support type run-flat tire with improved support and durability in low air pressure or flat conditions. The tire has a crescent-shaped support rubber between the inner liner and ply at the sidewalls and shoulders. This provides additional reinforcement to prevent excessive deformation when air pressure is low. The crescent shape optimizes mechanical properties and strength. The tire also has a reinforcing layer, bead ring, and apex rubber to further support the sidewalls, shoulder, and overall shape. This improves load carrying capacity and prevents rolling issues in flat tire scenarios.

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Explosion-proof tire design for run-flat capability that allows stable operation after puncture. The tire has a detection chamber inside the tire. When the tire bursts, the chamber collapses and squeezes an air cushion. This squeezes a support block with a rubber tire and a telescopic rod. The rod extends into a spring-loaded sleeve. The sleeve limits rod movement to keep the block and tire fixed on the wheel hub, preventing unbalanced rolling.

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Run-flat tire support structure that allows a tire to continue rolling and driving for at least 60 km at 60 km/h even when completely deflated. The structure uses a thin layer of fiber cord reinforcement instead of a thick rubber support layer. This reduces weight, cost, and rolling resistance compared to traditional run-flat tires with thick rubber supports. The fiber cord layer provides sidewall flexural durability without excessive thickness and hardness. The thinner support also avoids stress concentration on the sidewall and reduces hidden safety risks.

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Run-flat tire that suppresses bending deformation of the reinforcing rubber and suppresses rim detachment during run-flat running. The tire includes a tread, a carcass ply bridged between the beads, and a reinforcing rubber arranged on the tire cavity side of the carcass ply on the sidewall.

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A support structure for run-flat tires that provides improved durability and prevents delamination of tire components when running on low air pressure. The structure uses a composite support assembly at the lower sidewall section of the tire. It includes an apex, carcass cords, triangular rubber, and support rubber. The apex, bead ring, and carcass cords cover the lower sidewall. The triangular rubber connects between the carcass cords. The support rubber is inside the carcass. The triangular rubber shape prevents deformation separation between the carcass and apex. The apex elastic modulus matches the carcass. The triangular rubber thickness is maximized at the rim. This coordinated deformation prevents sub-port delamination in run-flat tires.

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Run-flat tire design that allows driving on deflated tires without damage or loss of control. The tire has a crescent-shaped support rubber layer between the inner liner and ply at the sidewall and shoulder. This provides extra support when air pressure is low or zero due to leakage or blowouts. The crescent shape optimizes mechanical properties for strength and deflection. The support rubber layer prevents excessive deformation and allows normal driving.

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A run-flat tire design that allows a vehicle to continue driving after a puncture without the need for a spare tire. The run-flat tire has a composite construction with a tire casing, a solid rubber tire inside the casing, and a rim. The solid tire provides support and allows the vehicle to continue driving when the regular tire is punctured or deflated. The casing prevents the rim from damaging the road when the tire is flat. The rim width is slightly larger than the casing width to prevent the rim from protruding when the tire is flat.

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Puncture protection tire system that uses an onboard gas generation module to inflate the inner tube of the tire if the tire pressure drops significantly while the vehicle is moving at a certain speed. This prevents deflation and potential accidents caused by punctures. A tire pressure monitoring module and speed detection module trigger the gas generation when conditions are met. This prevents tire bursts when stationary or at low speed, reducing maintenance costs compared to traditional puncture protection tires.

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Explosion-proof run-flat tire with improved structure to prevent tire deflation and maintain vehicle stability in the event of puncture. The tire has a trapezoidal inner ring inside the carcass. This inner ring has multiple buffer holes. The tire also has side frames on the inner side of the tire that have matching grooves. When a puncture occurs, the tire will deflate but the trapezoidal inner ring and buffer holes will prevent explosive tire failure. The side frames and grooves prevent the tire from collapsing completely and provide a path for the deflating air to escape. This allows the vehicle to continue driving at reduced speed without risk of loss of balance.

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Run-flat tire with improved durability in a deflated state by using a specific configuration of support rubber layers between the ply and inner liner. The tire has a tread, inner liner, and sidewall with a belt and ply in between. Between the ply and inner liner is a support rubber for run-flat protection. The support rubber is divided into upper, middle, and lower sections in a specific ratio. The longest width of the upper section is T1, the middle section is T2, and the lower section is T1=T3<T2. This configuration improves durability of the tire when running flat by optimizing the run-flat support without negatively impacting regular tire performance.

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Run flat tire design that allows driving even with a puncture or zero air pressure. The tire has a reinforced sidewall with a cross-compounded support rubber layer. The layer has two types of rubber with different hardnesses. This cross-compounding allows the two rubber types to interact and disperse stresses instead of concentrating in one area. This prevents fatigue failure and delamination of the support rubber in a flat tire state.

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Run-flat tire with improved ride comfort and fuel efficiency compared to traditional run-flat tires. The tire has reinforcing layers inserted between the carcass and inner liner of the sidewall. These reinforcing layers have curved outer surfaces that extend outside the tire and curved inner surfaces that extend inside the tire. This configuration disperses load more effectively, increases flexibility for better ride comfort, and facilitates heat dissipation.

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Emergency running support body for a pneumatic vehicle tire which can be retrofitted into conventional pneumatic vehicle tires without run-flat function and with which the tire fitted with this run-flat support body can be arranged with optimized rolling resistance as possible and safely without slipping in the various load conditions of the tire and with the wheel load in the emergency run Loss of compressed air safely carries. The body is dimensioned in such a way that it is subsequently to be arranged in the tire cavity of a fully vulcanized tire in such a way that one each element touches a tire sidewall from the inside and the web runs approximately parallel to the tire axis.

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Elastic run-flat tire that allows driving on a puncture without loss of pressure and prevents rapid pressure loss. The tire has an internal support mechanism between the inner and outer rings of the tire cavity. The support expands during normal driving to maintain tire shape and prevent pressure loss. When maintenance is needed, the mechanism can be partially released to facilitate tire removal. The support tensioning is adjusted by a mechanism connected to an outer rotating shaft. Multiple support levels can be added in series for wider range and better cushioning. The support tensioning mechanism can be shared between rods or ropes. A locking mechanism and elastic element or air pressure device adjusts the support tension. This allows tensioning and loosening to expand/contract the support for normal driving and maintenance access.

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A pneumatic tire that enables stable run-flat capability without degrading normal driving performance. The tire has load support bodies extending around the inner side of each sidewall. These load supports are detachably attached via mechanical engagement members to the sidewall inner surface. This allows the tire to continue running when deflated by shifting weight to the sidewalls. The load supports prevent collapse. During normal inflation, the supports don't impede driving. This improves reusability after run-flat by avoiding sidewall damage. It also minimizes resistance and ride comfort degradation compared to integrated sidewall reinforcement.

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Run-flat tire design that allows driving on punctured or deflated tires without the need for spare tires or air compressors. The tire has an internal support ring that extends along the inner sidewalls. The ring connects to the tire body using threaded fasteners. The ring has openings for inflation gas. This allows the tire to maintain some shape and support if the outer sidewalls deflate or puncture. The ring reduces the need for high sidewall strength and special rubber, improving assembly, NVH, and cost compared to traditional run-flat tires.

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Single-sided double sidewall safety run-flat tire design that allows driving with punctures or leaks to prevent sudden tire failure at high speeds. The tire has double sidewalls with air retention cavities between them. When punctured, only one cavity ruptures since each cavity has a gas retention layer. This isolates air leaks and allows driving on a flat tire for short distances. A spare rubber ring around the wheel rim provides additional support. The tire also has reinforced crown and carcass layers to prevent punctures from propagating.

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Explosion-proof and zero-pressure maintenance tire that can continue driving after puncture or when tire is flat. The tire has an inner liner, a steel belt in the crown, a reinforced intersection between sidewall and bead, carcass plies in shoulder, sidewall, and bead. This provides strength and protection to prevent blowouts even with punctures or zero air pressure. The reinforced intersection between sidewall and bead prevents sidewall collapse when pressure is lost. The carcass plies around the shoulder, sidewall, and bead provide additional reinforcement to prevent blowouts.

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Run-flat tire that can be driven without air pressure by changing the tire and wheel hub structure. The tire has a reinforced carcass extending inside the tire to surround it. The wheel hub has a groove matching the carcass shape. When a tire deflates, the carcass engages in the groove to support the vehicle and prevent loss of control. The carcass is higher than the groove to counter vehicle tilt.

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Tire design to prevent runaway when punctured that balances safety and ride comfort. The tire has a reinforced sidewall and shoulder area between the carcass and inner liner. This special structural reinforcement layer strengthens those parts to maintain load support when a tire loses pressure. It allows driving with a flat tire for a distance, preventing runaway and loss of control. The reinforcement layer is made of rubber with specific properties to balance durability and ride comfort.

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Pneumatic tire with compensation function to maintain vehicle balance and allow driving after puncture. The tire has an inner support frame mounted on the wheel hub with a smaller radius than the tire. Inside the frame is an airbag shaped like a C with folds. When the tire is punctured, the airbag inflates through a valve to compensate for pressure loss and prevent balance issues. The frame protects the airbag from further punctures.

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Run-flat tire design that allows continued driving on a punctured or deflated tire. The tire has a reinforced rubber layer between the inner and outer tire cavities that provides additional support if the inner carcasses leak or puncture. This prevents immediate tire collapse and allows driving to a safe location. The tire also has a protective layer and wear-resistant layer to support the tire body if both inner carcasses fail.

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Tire design that allows driving with a puncture or at zero air pressure. The tire has features to prevent loss of control or getting stuck when a puncture occurs or the tire goes flat. The tire has a reinforced sidewall and bead area to prevent bulging or separation when pressures are low. The carcass ply extends through the shoulder, sidewall, and bead areas for added reinforcement. This allows the tire to continue rolling without deflating or deforming excessively when punctured or at low pressure.

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Shock-absorbing and run-flat tire design that combines puncture protection, explosion prevention, and improved ride comfort. The tire has a unique inner cavity shape with a drop-shaped anti-puncture cavity and a spiral support frame. The drop-shaped cavity prevents punctures from reaching the tire inner volume, and the frame provides double shock absorption. A thin airtight inner liner is blown into the cavity. The molding process involves creating the cavity and frame in separate halves, then joining them. This allows features like the drop-shaped cavity to be molded precisely. The inner liner is blown in after vulcanization.

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Run-flat tire with improved performance in both normal driving and flat situations without compromises. The tire has a sidewall reinforcement divided into multiple sections by a wall. Each section contains a separate storage chamber for a two-part adhesive. In normal driving, the adhesive remains separate. But when the tire is punctured, the wall ruptures and the adhesive mixes and cures, increasing sidewall rigidity to support the tire. This allows running on a flat while also filling the puncture hole to slow air loss.

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Run-flat tire design with improved shock burst resistance and reduced rolling resistance. The tire has a unique construction to balance these performance characteristics. The key features are: 1. Sidewall reinforcement: A layer of side reinforcing rubber is added inside the sidewall. This provides rigidity to prevent sidewall deformation when hitting protrusions. 2. Tread thickness ratio: The average thickness in the center and shoulder regions is optimized. The ratio should be between 1.00 and 1.30 for the center and 0.98 to 1.25 for the side. This prevents excessive deflection in the center versus shoulder. 3. Tread rubber thickness: The average actual rubber thickness in the center and shoulder is optimized. The ratio should be between 1.6 and 2.5. This prevents excessive thinning in the center versus shoulder. 4. Side reinforcing

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Tire design to improve stability and safety during punctures and provide better overall performance. The tire has insertion portions extending from the sidewall into the reinforcement layer inside the tire. The width and length of the insertion portions can vary. Having these internal inserts provides reinforcement in the critical area where punctures occur, improving puncture resistance. It also improves stability during run-flat operation by preventing bulging and deformation. The lower strength material in the insertions allows them to compress and deform slightly during puncture instead of causing the sidewall to buckle.

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Run-flat tire design with an outwardly curved elastic support that helps prevent the tire from coming off the rim when punctured. The elastic support is located between the bead and carcass of the tire and has a curved shape that outwardly bulges when force is applied. This bulging action helps rim the bead and prevent tire separation from the rim when punctured. The curved shape is formed by using a thermoplastic elastomer that softens and flows when heated, then hardens when cooled.

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Run-flat tire design that improves durability during run-flat operation. The tire has a reinforcing rubber layer between the carcass and inner liner in the sidewall. This layer provides rigidity when air leaks, preventing excessive sidewall deformation. The reinforcing rubber thickness between 38-68% of the tire height. Bead filler rubbers outside the reinforcing rubber provide additional rigidity. The total thickness of the reinforcing, bead fillers, and inner liners is 100-140% of the reinforcing rubber max. This ensures sidewall rigidity from tread to bead during run-flat.

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Tire with run-flat capability that can continue driving after a puncture without air. The tire has a damper inside the inner liner at the lower tread end. This damper absorbs impact when the tire is flat, preventing it from collapsing. The damper is shaped with a curved side and width less than 80% of the tire height. This allows stable contact with the rim when flat. The damper also has a lower width than upper width. This prevents interference with the rim when the tire is inflated. The damper can be supported by the rim while spreading. The curved shape absorbs impact better than a straight side.

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A run-flat tire design that allows the tire to continue driving for a short distance even with zero air pressure. The run-flat tire has a pair of bead cores, a carcass between the cores, and a side reinforcing rubber on the tire side. The bead filler extending from the bead core is made of rigid resin instead of rubber. This provides higher torsional rigidity to prevent deformation and enables reducing the thickness of the side reinforcing rubber. This reduces bending rigidity, weight, and rolling resistance compared to traditional tires. The rigid bead filler also helps prevent bead separation when run flat.

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Run-flat tire with integrated pressure monitoring and sealing system to prevent blowouts and accidents. The tire has a pressure sensor and gas generator installed in an annular groove on the wheel rim. The pressure sensor contacts the inner tube and detects low pressure. If the tire strength is exceeded or punctured, the pressure drop triggers the gas generator to ignite solid fuel and generate gas. This inflates the inner tube to block punctures and allow driving on deflated tires.

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Run-flat tire design that allows a vehicle to continue driving even when the tire is completely deflated. The tire has thicker sidewall on the inner crown area compared to a conventional tire. This compensates for the height of the rim groove and rim when the tire loses air pressure. This prevents the rim from contacting the ground and allows safe driving without the need for spare tires.

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Run-flat tire design with improved durability, longer service life, and better comfort compared to existing run-flat tires. The tire has a unique internal structure with an arch-shaped reinforcing layer between the curtain layer and liner. This reinforcing layer gradually thickens from the center towards the sidewalls, ending at 0mm. The reinforcing layer supports the vehicle weight when air pressure is lost without folding the sidewalls. Short fiber reinforcement is used in the reinforcing layer for durability. This allows the tire to run flat without delamination or cracking issues, improving longevity. The gradual thickness transition prevents sidewall creasing and preserves elasticity for better comfort when the tire is run flat.

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A pneumatic tire with improved emergency running properties and durability compared to conventional run-flat tires. The tire has a crescent-shaped reinforcing profile in the sidewall that self-supports the tire in the event of air loss. But to prevent cracking and failure, an additional textile reinforcement layer is added inside the reinforcing profile. This inner layer contacts the tire carcass and prevents centrifugal forces from damaging the outer reinforcing profile during high-speed cruising. In an emergency, the inner layer compresses against the carcass, providing additional support. The inner layer also covers the outer ends of the inner reinforcement strip to prevent cracking when the tire is compressed. This improves durability and allows longer self-supporting distances.

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A tire design that provides leak resistance, low-pressure capability, and reduced electrical hazard compared to conventional runflat tires. The tire has a unique construction with multiple layers and components to achieve these features. The tire has a rubber layer with a reinforced ply, covered by an inner layer and a top cover. Below the ply is a traveler wrapped in the ply. The ply has steel wire belt layers sandwiched by a buffer layer. Inside the ply, symmetric rubber sheets are arranged on the inner wall. These sheets have hard rubber blocks above and below, connected by elastic rubber blocks. This structure allows the tire to continue supporting the vehicle when deflated due to the reinforced ply and traveler. The rubber sheets prevent air leakage between the ply layers. The hard rubber blocks reduce electrical conduction compared to conventional steel belt tires.

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Low-pressure all-terrain tire with puncture and leak protection that allows safe driving even when the tire loses internal pressure. The tire has a unique design to support it when deflated. A hard rubber block below the tread compresses when the sidewall deflects due to loss of air pressure, providing support to keep the tire from sagging. An elastic rubber block connects the hard block to the sidewall. This cushions and absorbs impacts when the tire is inflated.

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A wheel design that prevents vehicle loss of control and rollover after a tire burst at high speed. The wheel has a tire, hub, tire frame, and multiple support units. The support units replace the tire rim and prevent direct contact with the road. The support components mesh around a central pressing component. The tire frame connects to the inner surface of the tire. When the tire pressure drops, the support units open and the wheel continues rotating without tire falloff. It allows normal driving and control after a flat tire.

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