A non-pneumatic wheel having a hub (12), an outer tread band (200) and a plurality of spokes (100) connecting the hub (12) with the outer tread band (200), each of the plurality of spokes (10) having first and second support elements joined by a first elastomeric joint body (130) connecting the first support element to the second support element.

An assembly has a wheel and a nonpneumatic tire. The nonpneumatic tire includes a plurality of helical springs. Each helical spring includes a first end portion, a second end portion, and an arching middle portion. Each helical spring being is interlaced with at least one other helical spring thereby forming a laced toroidal structure extending about an entire circumference of the nonpneumatic tire. The toroidal structure supports an entire load placed on the nonpneumatic tire. The plurality of helical springs are constructed of a predetermined material that maintains strength and ductility down to 17 K.

A structurally supported non-pneumatic tyre comprises a tread, an annular band, a plurality of spokes extending transversely and radially inside the annular band, and means for connecting the plurality of spokes to a wheel, characterized in that the spokes comprise a polymeric composition based on at least one polymeric matrix comprising 50 to 70% of one or more thermoplastic polymers, the glass transition temperature (Tg) of which is within a range extending from 120 to 250° C. and 30 to 50% of one or more thermoplastic elastomers, said thermoplastic elastomer(s) being compatible with said thermoplastic polymer(s), such that the elongation at break of the mixture of these polymers is greater than or equal to the elongation at break of the thermoplastic polymer(s) alone.

A wheel for a vehicle (e.g., a construction vehicle, an all-terrain vehicle, or other off-road vehicle) or other device, in which the wheel includes a non-pneumatic tire that may be designed to enhance its use and performance, including to be able to be used longer and/or in more challenging conditions, such as by being more resistant to cracking or other damage which could lead to premature failure (e.g., due to manufacturing artifacts and/or rocks and other hazards that can cut, chip, or tear during use). The non-pneumatic tire includes an annular beam configured to deflect at a contact patch of the non-pneumatic tire and an annular support extending radially inwardly from the annular beam and configured to support loading by tension. An elastomeric material of at least one of the annular beam and the annular support may have selected properties, including greater crack propagation resistance when subject to tensile stress.

An object of the present disclosure is to provide a non-pneumatic tire having a small temperature dependence of ride comfort, providing a good ride comfort over a wide temperature range, and having an excellent durability. A solution thereto is a non-pneumatic tire (1) using a resin composition for a framework member, the resin composition having a bending modulus of elasticity at −20° C. according to ISO 178 of 1600 MPa or less, and a bending modulus of elasticity at 60° C. according to ISO 178 of 150 MPa or more.

A shear band that may be used e.g., in a non-pneumatic tire is provided. The shear band uses interlaced reinforcing elements positioned within a shear layer of elastomeric material. A variety of configurations may be used to create the interlaced positioning of the reinforcing elements including e.g., a horizontal diamond or vertical diamond configuration. The shear layer formed from a rubber composition having a very low hysteresis reinforced with silica.

Disclosed herein are polymeric blends suitable for use in non-pneumatic tires, processes for preparing the polymeric blends, and non-pneumatic tires and components thereof incorporating the polymeric blend. The polymeric blends include a thermoplastic polyester elastomer, a high temperature thermoplastic polymer, a compatibilizer resin, a delayed crosslinking agent, and an activator.

A method and apparatus for molding non-pneumatic wheels is provided. The exemplary method and apparatus allow for the use of the same molding system to manufacture wheels with different hub constructions. Different configurations of removable mold elements are utilized within the same molding system to provide wheels with different hub constructions.

A non-pneumatic tire, comprising a polyurethane composite layer which comprises a polyurethane matrix material and a thermoplastic expandable polymer material dispersed in the polyurethane matrix material. The polyurethane matrix material is obtained by a reaction comprising the following components: (A1) a polyisocyanate composition; (B1) at least one polyalkylene oxide-based polyether polyol having a number average molecular weight of 2000-7000 g/mol, calculated according to GB/T 7383-2007: test method for hydroxyl value, and containing 15-35 wt % of solid particles based on the total weight of the polyether polyol; (B2) one or more chain extenders; (B3) one or more catalysts; and (B4) one or more foaming agents. Also provided herein is a method for preparing a non-pneumatic tire, a process for manufacture of a non-motor vehicle, and a non-motor vehicle.

The provided tire has excellent durability regardless of use in a high-humidity environment or contact with water, even though the framework member of the tire is made of a resin material. The resin material is made of a resin composition including 60 mass % or more of a polyamide resin formed by polymerizing an aliphatic diamine having 6 to 20 carbon atoms and an aliphatic dicarboxylic acid having 10 to 20 carbon atoms.