A rim assembly for a tire includes an outer rim having an outer annular surface and an inner surface. The rim assembly also has an inner rim with an outer surface, wherein the inner surface of the outer rim has a first plurality of axial grooves that define a first plurality of axial ridges. The outer surface of the inner rim has a second plurality of axial grooves that define a second plurality of axial ridges. The second plurality of axial grooves have a cross-sectional geometry corresponding to a cross-sectional geometry of the first plurality of axial ridges, and the second plurality of axial ridges have a cross-sectional geometry corresponding to a cross-sectional geometry of the first plurality of axial grooves.

A wheel for a vehicle is non-pneumatic (i.e., airless), may be designed to enhance its use and performance and/or use and performance of the vehicle, and may be manufactured efficiently, including by a single non-pneumatic tire molding operation that can allow rigid rim incorporation and complex tread implementation.

A wheel for a vehicle is non-pneumatic (i.e., airless), may be designed to enhance its use and performance and/or use and performance of the vehicle, and may be manufactured efficiently, including by a single non-pneumatic tire molding operation that can allow rigid rim incorporation and complex tread implementation.

A tire member of a non-pneumatic tire is provided. An inner circumference of the tire member is provided with a mounting protrusion. Securing notches for securing the tire member to a rim are provided at two sides of where the mounting protrusion joins the tire member. A position fixing groove is provided at an inner circumference of the mounting protrusion. The position fixing groove has an annular structure; alternatively, the position fixing groove has an arc structure, and a plurality of the position fixing grooves having the arc structure are uniformly distributed at the inner circumference of the mounting protrusion in a circumferential direction. Two side walls of the position fixing groove are provided with several securing holes below the securing notches, respectively. The securing holes pass through the side walls of the position fixing groove, and partially coincide with securing notches at an outer side.

A tire member of a non-pneumatic tire is provided. An inner circumference of the tire member is provided with a mounting protrusion. Securing notches for securing the tire member to a rim are provided at two sides of where the mounting protrusion joins the tire member. A position fixing groove is provided at an inner circumference of the mounting protrusion. The position fixing groove has an annular structure; alternatively, the position fixing groove has an arc structure, and a plurality of the position fixing grooves having the arc structure are uniformly distributed at the inner circumference of the mounting protrusion in a circumferential direction. Two side walls of the position fixing groove are provided with several securing holes below the securing notches, respectively. The securing holes pass through the side walls of the position fixing groove, and partially coincide with securing notches at an outer side.

A non-pneumatic tire and wheel assembly including a wheel having a first and second bead ring, a non-pneumatic tire having a shear band and tread forming a tread band, and a first and second sidewall region; wherein the first and second sidewall regions each extend from the tread band and terminate into a first and second respective bead area, wherein the first and second bead area are each mounted on the first and second bead ring, respectively; wherein each bead area is located axially outward of the crown region of the non-pneumatic tire when mounted on the wheel, and wherein the first and second sidewall each have an upper sidewall region that is uncoupled from the outer lateral ends of the tread band.

A non-pneumatic tire and wheel assembly including a wheel having a first and second bead ring, a non-pneumatic tire having a shear band and tread forming a tread band, and a first and second sidewall region; wherein the first and second sidewall regions each extend from the tread band and terminate into a first and second respective bead area, wherein the first and second bead area are each mounted on the first and second bead ring, respectively; wherein each bead area is located axially outward of the crown region of the non-pneumatic tire when mounted on the wheel, and wherein the first and second sidewall each have an upper sidewall region that is uncoupled from the outer lateral ends of the tread band.

A variable compliance non-pneumatic wheel which comprises a stationary tubular body (32) attached to the vehicle chassis. A tubular member is freely rotatable relative to the stationary tubular body and has a series of peripheral mounting rods (12, 13) on sides of the wheel. A plurality of interconnected and freely rotating caterpillar-like tiles (5), which are in contact with the ground during wheel operation, are coupled to the outer periphery of the wheel. A plurality of connecting spring members, (3, 4, 6, 7, 8, 9, 10, 11), each connecting a specific mounting rod on a side of the hub (1, 2) are configured to connect the tiles (5) to the hub. The tubular member is split in two parts (1, 2) which are each free to rotate relative to one another. Each part carries approximately half number of mounting rods and connecting springs on a respective side of the wheel.

A non-pneumatic tire and rim assembly having a wheel having a first and second bead ring, wherein the non-pneumatic tire has a crown region and a first and second sidewall region; wherein the first and second sidewall regions each extend from the crown and terminate into a first and second respective bead area, wherein the first and second bead area are each mounted on the first and second bead ring, respectively; wherein each bead area is located axially outward of the crown region of the non-pneumatic tire when mounted on the wheel, and wherein the non-pneumatic tire further includes a reinforcement ply which extends from the first bead area to the second bead area.

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.