Heavy-Duty Tires for Industrial Equipment

Puncture-resistant all-steel radial tubeless tire for mining that reduces early tire damage due to crown punctures. The tire design features transverse blocks in the tread pattern with inner steps and stone-discharging rubber nails to prevent crown punctures from sharp objects. Between the tread and steel belt, a rubber protective layer and additional layer of rubber protect the belt. A nylon curtain is added between the rubber protective layers. This multi-layer protection reduces punctures from thick steel bars and sharp stones in mining areas where tires often fail prematurely due to crown damage.

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A pneumatic tire for aircraft that balances wear resistance during taxiing and touchdown landing. The tire has a tread with a stepped outer surface where the step height at 90° from the equatorial plane (δ90) is less than 0.025 times the tire radius (Rc) and the step height at 35° from the equatorial plane (δ35) is between 0 and 0.004 times Rc. This configuration allows sufficient ground contact width at low loads for touchdown wear suppression while reducing diameter difference drag during taxiing for wear suppression. The step height at the shoulder is also greater than zero for improved belt tension and standing wave performance.

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Non-pneumatic tire design with improved durability by completely reinforcing the outer annular portion with embedded spring steel layers. The tire has an inner annular portion, an outer annular portion coaxially around it, spokes, and a tread. The outer annular portion is reinforced with spring steel layers embedded all around. This provides effective reinforcement to improve durability of the outer portion that experiences repeated deformation during tire usage.

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Industrial solid tire designed specifically for tunnel applications to improve longevity and performance compared to symmetrical tires used in tunnels. The tire has an asymmetric tread pattern with internal layers arranged in a way that distributes forces more evenly when driving in tunnels. The tire structure includes a high-strength steel wire arrangement assembly, base rubber layer, buffer rubber layer, tread rubber layer, and an asymmetric pattern. This configuration helps prevent uneven wear, heating, and load distribution issues that can shorten tire life and degrade performance when driving in tunnels.

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Radial aircraft tire design with improved durability, particularly in the bead area. The tire has specific width and thickness ratios, as well as a unique chafer configuration, to improve bead durability while maintaining tread wear resistance. The tire width (TW) is between 0.73 and 0.8 of the maximum width (W) when inflated and loaded. The thickness (GW) of the outer chafer (first rubber chaper) near the bead edge is 0.2 times the thickness (SW) of the inner chafer (second rubber chaper). This prevents heat transfer to the carcass from the outer chafer. The stiffener rubber between the carcass and chafers has lower loss factor (tan δ) than the outer chafer. The inner chafer has higher tan δ for rim durability. The lower tan δ stiffener rubber prevents heat build

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A high-strength puncture-resistant off-road tire for construction machinery like loaders and dump trucks operating in harsh environments with poor road conditions. The tire has a carcass with additional layers of rubber fiber composite material instead of traditional ply rubber. This provides enhanced protection against stone penetration and prevents blowouts. The composite material has a specific density of 1.16-1.20 g/cm3. The composite layer replaces at least one of the standard ply layers in the tire carcass.

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Heavy duty truck tires with improved durability and retreadability while reducing weight. The tires have specific tread designs and materials to achieve these goals. The tread has two main areas: a central area and two edge areas. The central area width is 35-70% of the total tread width. The tread has circumferential cuts that define the areas. This configuration reduces the tread's cavity ratio in the center, preventing premature wear and damage. The tread also has hidden cavities inside the outermost layer that connect to the surface through sipe cutouts. This reduces weight. The tire's crown reinforcement has a thinner inner layer using low-elasticity cords to reduce weight. However, the outer layer uses higher-elasticity cords for durability. This allows weight reduction while maintaining strength. The tread material has specific properties like low rolling resistance and good wear

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A wide-base, very wide tire for construction vehicles like earth movers and garbage trucks that is designed to handle severe operating conditions like extreme loading, unpaved roads, and high speeds. The tire is optimized for cold running in challenging terrains like sand and oil to prevent premature failure due to bead fatigue, heat, and high stress. The cold running tire design mitigates issues like vertical instability, drift, and excessive heat buildup by focusing on factors like tire size, compounding, and construction that allow it to operate effectively in harsh environments.

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Radial tire for heavy vehicles like construction equipment that simplifies the tire design to reduce weight without sacrificing performance. The top reinforcement of the tire has a composite structure with a rigid layer and a low modulus layer. The low modulus layer is wider and outermost. This configuration provides two functions: absorbing inflation stresses and preventing buckling of the carcass cables. The ratio of the rigid layer's stress to the low modulus layer's stress is 1.2. The rigid layer has high tensile strength and the low modulus layer has low elastic modulus. This allows the low modulus layer to deform more than the rigid layer to absorb inflation stresses. The triangulation layer between them prevents overlapping ends. The tire also has a lining layer with angled reinforcements to absorb inflation stresses.

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A shear band structure for tires that improves durability, reduces weight, and maintains handling response compared to traditional tire structures. The shear band is inserted between the tread and other tire components. It provides reinforcement and prevents tread delamination. The shear band is made of lightweight, high-strength materials that reduce overall tire weight while maintaining durability. It also allows for thinner treads since the shear band provides additional protection. The shear band is configured with angled reinforcement cords that fold around the inner tire layers. This provides radial stiffness without adding bulk. The angled cord geometry reduces the shear force on the tread during cornering, preventing delamination. The shear band allows for thinner, lighter tires with improved durability and handling.

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High-strength, high-wear industrial tire with improved rigidity, strength, and wear resistance. The tire has a crown, breaker layer, carcass ply, and steel rim. Patterns with blocks and grooves are on the crown. Reinforcing ribs are in the grooves. This design provides enhanced rigidity, strength, and wear resistance compared to conventional industrial tires.

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Heavy-duty truck tire with high wear resistance and specialized patterns to improve traction and durability. The tire has a unique tread design with a first special pattern on the crown outer surface and a second pattern in the annular notch. This increases friction between the tire and road compared to plain treads. The tire also has a reinforcement layer assembly inside the tire body with two carcass plies sandwiched by a steel wire layer. This strengthens the tire structure and extends wear life compared to single-ply tires.

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Low-profile, tubeless industrial tire with improved wear resistance, stability, and puncture resistance. The tire has a flattened design with shorter sidewalls for better shock absorption. The tread has an anti-arc shape to prevent crown protrusion and increase ground contact. The blocks have stepped connections to the grooves for better root support. The inner tire has a steel buffer layer between the sidewall and carcass to reinforce puncture resistance. The tire is also tubeless with airtight liner and toe angle to prevent leaks.

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A heavy duty tire for use on heavy duty vehicles like trucks that have an outer diameter of less than 755 mm and an internal pressure of at least 10 bar. The compact size and high pressure allow for reduced overall vehicle height compared to standard tires. The tire has a base wall and side walls with a carcass extending radially between them. The compact size is achieved by using a standard rim diameter and reducing the tire width, while the high pressure helps prevent overheating issues.

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Dual-purpose tire that can be driven both inflated and non-inflated. The tire has a unique internal structure with components like a tread, belts, carcasses, an inner pressure ring, a steel ring, and breathing holes. This allows the tire to maintain load capacity and stability when deflated, like a solid tire, as well as have normal performance when inflated. The internal structure provides support and rigidity without an air chamber. The steel ring inside the pressure ring enhances stability. The breathing holes allow deflation and inflation. The tire can be used for heavy trucks, agriculture, mining, etc., where deflation is needed, as well as passenger cars and aircraft.

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Military semi-steel radial tire with improved strength, durability, and reliability for heavy load applications like off-road transportation. The tire has a multi-layer nylon cord carcass for enhanced strength and reduced voiding under high loads. It also uses a double bead construction with wrapped apexes to prevent cord separation. The tread has a graded 4-layer steel wire reinforcement for additional durability.

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A high-durability engineering machinery tire with improved longevity in harsh environments. The tire has a variable angle design for the carcass plies that reduces shear stress at the inner ply turn-ups and shoulder positions. The inner and outer plies have reduced cutting angles, and the crown angle is increased. This buffers the stress and prevents voids and delamination in the carcass. The tire construction also has an inner cord, outer cord, cushion cord, and tread with a sidewall connection.

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High-strength solid tire for heavy duty applications like construction vehicles that eliminates the need for inner tubes and allows running on rough terrain without punctures. The tire has a unique carcass design with a metal inner wheel that deforms under load and then returns to shape when the load is removed. This provides high strength and compression compared to conventional solid tires. The metal inner wheel is surrounded by layers like a conventional tire: filling, buffer, reinforcement, wear resistance, and tread. The tread has drainage grooves and aluminum foam for shock absorption. The metal inner wheel prevents compression deformation when the outer layers wear, maintaining tire shape and reducing ride harshness compared to solid tires with just rubber layers.

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Radial tire for heavy construction vehicles with a crown design that improves durability and resistance to stone damage. The crown has a tread with high void volume to reduce heat buildup, but also has narrow, deep cuts called "effective cuts" that penetrate the tread and crown reinforcement. These cuts provide airflow while maintaining contact between the tread and crown. The cuts prevent stones trapped in the tread from penetrating and damaging the crown reinforcement. The cuts also have reinforced layers to resist stone impact. The crown reinforcement has a multi-strand elastic cable for permeability and a reinforced carcass. This prevents heat buildup and stone penetration in the crown for longer tire life.

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Radial tire for heavy civil engineering vehicles with a crown reinforcement that reduces the risk of tread separation after cuts while maintaining good crack resistance. The tire has a tread, carcass, and crown reinforcement. The crown reinforcement is between the tread and carcass. It has two protective layers with elastic metal reinforcements. The inner layer has lower modulus than the outer layer. This geometry difference helps prevent premature tread separation after cuts by absorbing forces that would otherwise cause separation. The lower inner modulus reduces the risk of tread pulling away from the crown reinforcement.

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