51 patents in this list

Updated:

Modern tire designs must accommodate increasing vehicle weights while maintaining safety margins. Heavy-duty applications now require tires to support static loads exceeding 7,500 kg per tire, with dynamic loads during acceleration and cornering introducing additional stress factors. These demands push traditional pneumatic designs to their structural limits.

The fundamental challenge lies in developing tire architectures that can transfer higher loads while maintaining acceptable deflection characteristics, heat generation, and wear patterns.

This page brings together solutions from recent research—including reinforced non-pneumatic support structures, advanced shear band designs, optimized belt configurations, and novel bead architectures. These and other approaches demonstrate how load capacity can be enhanced while preserving tire durability and performance characteristics.

1. Light Truck Tire with Dual Ring-Shaped Metal Braided Reinforcements and Symmetrical Sidewall Patterns

HUBEI JINTIAN TYRE CO LTD, 2024

A high wear-resistant light truck tire with two metal braided structures inside the tire body. The tire has symmetrical stripes and patterns on the outer sidewall. The metal braids are ring-shaped and evenly placed inside the tire. They provide reinforcement to resist wear in high load and rough road conditions.

2. Passenger Car Tire with Extended Inward Carcass Reinforcement and Optimized Sidewall Height

コンパニー ゼネラール デ エタブリッスマン ミシュラン, COMPANY GENERAL DETA BRISSMAN MICHELIN, 2023

A passenger car tire with higher load capacity than standard tires of the same size without sacrificing space or comfort. The tire has a carcass reinforcement that extends further inward than usual relative to the tire's size. This allows the tire to withstand higher loads than a standard tire of the same size without increasing inflation pressure. The tire also has a sidewall height and carcass construction that enable it to maintain similar space and performance characteristics compared to the standard tire.

JP2023544751A-patent-drawing

3. Passenger Car Tire with Enhanced Load Index and Standard Dimensions

コンパニー ゼネラール デ エタブリッスマン ミシュラン, COMPANY GENERAL DETA BRISSMAN MICHELIN, 2023

Tire design that allows a passenger car tire to carry higher loads without needing higher inflation pressures. The tire has a load index greater than that of a standard tire of the same size and construction. This provides increased load capacity without sacrificing compactness or comfort. The tire maintains the same dimensions as a standard tire of the same size and aspect ratio. The higher load capacity allows using larger batteries for electric vehicles without needing larger tires or higher pressures. The tire can have a distinctive marking like "HL" or "XL+" to indicate the higher load capacity.

JP2023544389A-patent-drawing

4. Curved Flexible Membrane Support Structure with Reinforced Joints for Non-Pneumatic Tires

COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, 2023

Resilient, reinforced support structure for non-pneumatic tires that improves durability and load transmission. The support has a curved, flexible membrane connecting the inner and outer joints. The curved shape allows the support to flex and absorb impacts while maintaining radial stiffness. The joints connect to tire components like hubs and tread bands.

5. Spring Tire with Shape Memory Alloy Springs and Variable Stiffness Tread

The SMART Tire Company Inc., 2023

A spring tire that provides improved load-carrying capacity, climbing ability, flotation, and traction compared to previous non-pneumatic tires. The tire uses shape memory alloy springs in the main body, tread, and bump stop. The tread has variable stiffness springs to create uneven deflection and form tread lugs when pressured. The bump stop contacts the rim to prevent over-deflection. The springs are interconnected to distribute the load around the rim. This allows top and bottom loading for increased capacity. The tire also has a spoked rim and integrated lugs for weight reduction.

US20230241919A1-patent-drawing

6. Non-Pneumatic Tire with Reinforced Annular Bands and Wound Linear Reinforcement

HANKOOK TIRE & TECH CO LTD, HANKOOK TIRE & TECHNOLOGY CO LTD, 2023

Non-pneumatic tire design for vehicles that doesn't require air pressure. The tire has a structure with reinforced annular bands adjacent to the tread that provide load support and uniform contact pressure. It also has a reinforcing belt formed by winding a linear reinforcement around the outer annular band to improve durability, rotational resistance, and lateral stiffness. This allows a non-pneumatic tire with maneuverability similar to pneumatic tires and efficient load support without air.

7. Pneumatic Tire with Belt Layer and Mercaptocarboxylic Acid Compound Rubber for High Load Capacity and Low Rolling Resistance

BRIDGESTONE CORPORATION, 2023

High-strength, load-carrying pneumatic tire with low rolling resistance for small shuttles and other vehicles. The tire has an outer diameter of 350-600 mm and a belt layer to support high loads. It also contains a rubber compound with a mercaptocarboxylic acid compound to improve rolling resistance (fuel efficiency) and rubber strength. The tire design allows for a large rim diameter relative to the outer diameter to maximize load capacity while saving space.

8. Lattice-Patterned Yarn Shear Band Structure for Non-Pneumatic Tires

The Goodyear Tire & Rubber Company, 2023

An improved shear band design for non-pneumatic tires provides a cost-effective, lightweight, and low heat-generating load transfer mechanism. The shear band is made of yarns arranged in a lattice-like pattern. The yarns are oriented at different angles to optimize load transfer and shear resistance. This lattice structure allows the shear band to deform primarily in shear rather than bending, which reduces stress and heat generation. The yarns can be made of high-strength materials like aramids or polyethylene to provide the necessary tensile strength.

US20230191835A1-patent-drawing

9. Truck Tire with Enhanced Crown Structure Featuring Thicker Center Rib Section

The Goodyear Tire & Rubber Company, 2023

A truck tire with improved crown durability and increased load-carrying capacity. The tire has a tread with a thicker center rib section compared to the shoulder sections. This provides a stronger crown area for better durability and load-carrying capacity.

10. Truck Tire with Multiple Circumferential Ribs, Wide Grooves, and Reinforced Crown Area

The Goodyear Tire & Rubber Company, 2023

A truck tire with improved crown durability and increased load-carrying capacity. The tire has a new tread pattern with unique features like multiple circumferential ribs and wide grooves to increase the contact area with the road. This provides better traction and reduces wear. The wider grooves also help with heat dissipation, which improves durability. Additionally, the tire has a reinforced crown area with thicker rubber to handle higher loads.

11. Belt Reinforcement Structure with Angled and Zigzag Belts for Truck Tire Tread

The Goodyear Tire & Rubber Company, 2023

A truck tire design with improved load-carrying capacity and durability. The tire has a tread, sidewalls, and beads. It features a belt reinforcement structure under the tread, with two angled working belts and a zigzag belt. The belts are oriented at angles of 10-50 degrees from the circumferential direction. This configuration allows the tire to carry heavier loads without excessive tread wear, providing improved crown durability.

12. Bead Structure with Overlapping Contention Armature for Heavy-Duty Truck Tires

Compagnie Generale des Etablissements Michelin, 2023

Bead design for heavy-duty truck tires to improve endurance and prevent carcass damage. The bead features a contention armature that overlaps itself on the outer side of the bead core rod. This overlapping armature provides additional reinforcement and prevents relative movement between the bead core and rubber components, reducing stress on the carcass and increasing bead endurance.

US11673431B2-patent-drawing

13. Reinforced Annular Beam and Thermoplastic Elastomer Support Structure in Non-Pneumatic Tire

Patrick F. KING, Christopher MAST, John DUTY, 2023

The invention is a non-pneumatic tire (NPT) with improved load-carrying capacity, damage tolerance, and speed capability compared to previous NPT designs. It achieves this through a reinforced annular beam that supports the load and extends radially inward to a thermoplastic elastomer annular support and rim. The annular beam is reinforced to prevent excessive deflection. The annular support is molded after the beam to create prestrain when it contracts upon cooling. This prestrain prevents excessive deflection under load. The rim lacks reinforcement to allow radial deflection.

14. Non-Pneumatic Tire and Wheel Assembly with Integrated Spoke Grid and Outer Flexible Tread Band

The Goodyear Tire & Rubber Company, 2023

A non-pneumatic tire and wheel assembly provides a long-lasting, efficient, and comfortable alternative to traditional pneumatic tires that can go flat. The non-pneumatic tire has an outer flexible tread band with a grid of load-carrying spokes inside. The spokes are made of a material having a higher stiffness than the tread band. This allows the spokes to support the load and carry it like a traditional pneumatic tire, while the tread band provides contact with the road. The non-pneumatic tire can be molded in one piece for simplicity and cost efficiency.

US20230144132A1-patent-drawing

15. Lightweight Annular Tread with Synthetic Fiber Cord Belt Layers for Non-Pneumatic Tires

GUANGDONG YUEGANG AODAWAN HUANGPU MATERIAL RES INSTITUTE, GUANGDONG YUEGANG AODAWAN HUANGPU MATERIAL RESEARCH INSTITUTE, 2023

A lightweight, high-load annular tread for non-pneumatic tires that provides good stiffness and load-bearing performance while reducing weight compared to conventional treads. The tread uses a unique cord material for the belt layers instead of steel wire. The cord material is a synthetic fiber that balances strength and weight, allowing fewer layers to meet the load requirements. This reduces the overall weight of the tread compared to traditional steel-cord treads with more layers. The lightweight tread can be used in non-pneumatic tires to improve performance, reduce heat generation, and lower energy consumption compared to heavy steel-cord treads.

CN218616102U-patent-drawing

16. Tire with Reinforced Crown and Flexible Shoulder Regions

The Goodyear Tire & Rubber Company, 2023

A pneumatic tire for vehicles like trucks that has improved durability and load-carrying capacity. The tire has a tread with a crown region and shoulder region. The crown region is reinforced with additional rubber material to increase its durability. The shoulder regions have a lower rubber thickness to allow for more flexing and deformation, which increases the tire's load-carrying capacity. The combination of strengthening the crown and allowing more flex in the shoulders enhances the tire's overall durability and load capacity.

US20230064757A1-patent-drawing

17. Aircraft Tire with Monofilament Breaker Layer Positioned Between Crown Reinforcement and Tread

The Goodyear Tire & Rubber Company, 2023

Aircraft tire with improved cut and puncture resistance for heavy load and high-speed conditions. The tire has a cut/puncture-resistant breaker layer between the crown reinforcement and tread. The breaker layer is made of parallel monofilaments inclined at 0-10 degrees to the equatorial plane. This configuration protects against cuts and punctures without sacrificing ride comfort or tire life.

US20230055170A1-patent-drawing

18. Helically Angled Radial Spoke Structure in Non-Pneumatic Wheel Assembly with Closed Cavities and Alternating Openings

The Goodyear Tire & Rubber Company, 2023

Non-pneumatic wheel/tire assembly with a spoke structure that supports a vehicle without relying on air pressure like traditional tires. The spoke structure consists of radially extending closed cavities and alternating radially extending openings. These cavities and openings are helically angled relative to the wheel axis. Under load, the flexible wheel ring can deflect vertically, while the part of the spoke structure adjacent to the ring also deflects vertically due to the helical angle. This vertical deflection allows the spoke structure to support the load without buckling.

19. Dual-Strand Reinforced Tire Cord with Opposing Helical Winding and Incomplete External Layer for Enhanced Elastomer Penetration

COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, 2023

A reinforced tire cord that balances strength and flexibility while allowing good elastomer penetration. The cord has an internal strand surrounded by an external strand. The external strand is wound in the opposite direction to the internal strand. The external strand has an incomplete layer - the outer wires don't touch. This creates gaps for elastomer to penetrate between the strands. The internal strand's wires have larger diameters towards the center to help elastomer flow. The cord is used in heavy-duty vehicle tires.

US11578459B1-patent-drawing

20. Bias Tire with Carcass Structure Featuring Outer Ply Extension and Dual Ply Bead Reinforcement

CHEMCHINA SHUGUANG RUBBER INDUSTRY RES AND DESIGN INSTITUTE CO LTD, CHEMCHINA SHUGUANG RUBBER INDUSTRY RESEARCH AND DESIGN INSTITUTE CO LTD, 2023

A bias tire design with improved rigidity and load-carrying capacity at the tire side and bead areas. The carcass structure has an outer ply extending to the tire heels, a positive ply wrapping the traveler, and a turned-up ply wrapping the traveler. This provides additional reinforcement at the critical sidewall and bead regions compared to traditional bias tires with just a turn-up ply. The outer ply extending to the heels increases rigidity there, while the positive and turned-up plies around the bead improve load-carrying capacity.

CN115610164A-patent-drawing

21. Heavy Duty Tire with Laminated Cushioning Layer and Multi-Ply Belt Construction

22. Tire with Epitaxial Tread Extension on Shoulder for Increased Width and Thickness

23. Radial Tire with Composite Top Reinforcement Featuring Rigid and Low Modulus Layers for Heavy Vehicles

24. Tire Shear Band with Angled Reinforcement Cords and Lightweight High-Strength Materials

25. Heavy-Duty Truck Tire with Dual-Pattern Tread and Reinforced Multi-Layer Structure

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New developments in tire design show how much progress has been made in increasing load capacity in a variety of applications. The issues of carrying enormous loads while maintaining safety and performance are addressed by these innovations through the integration of new materials and structural systems.