Abstract: A non-pneumatic tire (10) comprising a tread band having a ground engaging surface, a first reinforcement layer (250) comprised of at least one reinforcement (251) oriented in the tire's circumferential direction, a second reinforcement layer (254), located radially outward from said first reinforcement layer (250), said second reinforcement layer (254) comprised of a plurality of reinforcements oriented at an angle in a first direction to said tire's circumferential direction, a third reinforcement layer (258), located radially outward from said second reinforcement layer (254), said third reinforcement layer (258) comprised of a plurality of reinforcements oriented at an angle in a second direction to said tire's circumferential direction and a fourth reinforcement layer (262), located radially outward from said third reinforcement layer (258), comprised of at least one reinforcement oriented in the tire's circumferential direction.

Abstract: 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.

Abstract: A non-pneumatic wheel having spokes that are constructed such that collectively the plurality of spokes exhibit a fractional radial stiffness value within a range of 1 N/mm/deg to 10 N/mm/deg and a non-linearity of less than 20% when deflected under normal loading conditions.

Abstract: A spoke (100) for a wheel (10) attaching an outer tread (200) to a hub (20), the spoke having a first (142) and second (144) spoke elements joined by a joint body (130) comprised of an elastomer connecting the first spoke element to a second spoke element.

Abstract: A non-pneumatic tire (10) including a rigid central annular portion (12), an annular shear band (14), one or more deformable spokes (16), a tread (18), a plurality of tread elements, one or more displaced reinforcement layers arranged within the annular shear band (14) such that a longitudinal groove extends through at least one of the one or more displaced reinforcement layers wherein the one or more displaced reinforcement layers are arranged between one or more non-displaced reinforcement layers and the tread (18).

Abstract: A spoke for a wheel attaching an outer tread to a hub, the spoke having a first and second spoke elements joined by a joint body comprised of an elastomer connecting the first spoke element to a second spoke element.

Abstract: 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.

Abstract: A non-pneumatic tire having a nesting high modulus spoke structure each spoke pretension such that the spokes maintain positive tension during operation of the wheel under normal operating loading conditions over a smooth surface.

Abstract: A non-pneumatic wheel having a plurality of lengthwise reinforced spokes each spoke having at least one separation extending from the radially inner end of each of the plurality of spokes to the radially outer end of each of the plurality of spokes forming at least two spoke web sections where the radially inner end of each spoke is mechanically attached to the hub and the radially outer surface of each spoke is bonded to the outer annular band.

Abstract: A method of constructing a non-pneumatic wheel by securing a plurality of spokes around the outer circumference of a hub, positioning at least one spoke support at the radially outer end of each spoke such that the at least one spoke support holds the radially outer end of each spoke in a radially outward annular orientation, placing an outer annular band concentrically over the radially outer ends of the spokes, bonding the spokes to the outer annular band, contracting the at least one spoke support radially inward; and separating the at least one spoke supports from the non-pneumatic wheel.

Abstract: A non-pneumatic wheel having a plurality of spokes attached within slots in a hub, the slots having a first retaining surface and a second retaining surface, the radially outer portion of the first retaining surface possesses a flared edge such that the radially outer portion of the first retaining surface curves away from the radially outer portion of the second retaining surface.

Abstract: A tire that has a hub and a spoke is provided. The spoke extends from the hub in a radial direction of the tire. The spoke has a first face and a second face that are spaced from one another in a longitudinal direction of the tire. The spoke has a crack suppression feature that has a groove that extends into the first face. The groove extends in the radial direction.

Abstract: The present invention is related to a method and an apparatus for curing a polymeric form. The method includes arranging an uncured polymeric form within a curing chamber (60) formed by a base member (20) and a constraining member (40). A thermal expansion member (30) is additionally positioned within the curing chamber (60) with the uncured polymeric form (70) such that the thermal expansion member and the uncured polymeric form are positioned between the base member (20) and the constraining member (40). The thermal expansion member (30) is heated to expand in size into an expanded state. In the expanded state the thermal expansion member (30) applies pressure to the uncured polymeric form (70) within the curing chamber. The expansion of the thermal expansion member (30) is maintained to maintain the application of pressure to the uncured polymeric form while the uncured polymeric form is being cured to form a cured polymeric form.

Abstract: A non-pneumatic tire having a hub and a compliant outer band connected by multiple rows of connecting members, the connecting members of a given row of connecting members angled in a like direction and the predominant curvature of each connecting member resulting in the majority of the connecting member positioned toward a preferred intended direction of rotation of the tire.

Abstract: A non-pneumatic tire (101) having a hub (201) and a compliant outer band (109) connected by connecting members (129) that are intersected by an intermediate band (120) positioned between the hub (201) and compliant outer band (109) forming a plurality of connecting element segments (331,333), each segment having a predominant curvature extending in the same longitudinal direction said direction coinciding with the preferred direction of rotation of the tire (101).

Abstract: The present invention includes methods and apparatus for testing tire performance using a laterally-contoured road wheel. Accordingly, particular embodiments of the machine include a wheel configured to rotate, the wheel having a tire operating surface configured to engage a tire during operation, the outer tire operating surface arranged along an annular side of the wheel and having a width extending laterally relative a circumferential direction of the wheel along a contoured path. The machine may further include a drive source configured to rotate the wheel and a tire mount configured to rotatably maintain a tire. The present invention also includes methods of forming a laterally-contoured tire operating surface for a road wheel.

Abstract: A non-pneumatic wheel having a thermoplastic wheel hub includes a center hub for attachment to a wheel bearing of a vehicle. The center hub has a central shaft aperture extending axially therethough and a plurality of lug apertures spaced radially from and circumferentially about the central shaft aperture. The thermoplastic wheel hub also includes a plurality of ribs extending radially outwardly from the center hub. The thermoplastic wheel hub further includes a cylindrical tire mount connected to the ribs and extending axially in substantially a cylinder for mounting a non-pneumatic tire thereon.

Abstract: A tension-based non-pneumatic structurally supported wheel with reduced lateral stiffness having a compliant tread band and a plurality of web spokes for bearing the load in tension extending transversely across and inward from a compliant tread band for attachment to a hub. The web spokes have an increasing draft angle and decreasing width as they extend from the compliant tread band to the hub reducing the lateral stiffness of the wheel thereby reducing steering force feedback to the steering mechanism.

Abstract: A mold for forming a tire for a non-pneumatic or hybrid tire. The mold possesses a telescoping mold core having an angled shut off surface that extends past the cavities and into a mold half and contacts or nearly contacts the mold half on the angled shut off surface which changes the placement and orientation of potential flash.

Abstract: The present invention provides spoke geometry for a non-pneumatic tire that is less prone to fatigue when used. In particular, the spoke geometry is provided with an optimized thickness profile over the length of the spoke. This optimization results in a reduction in the peak strain energy density levels in the spoke, thereby reducing the likelihood of crack initiation and propagation which in turn enhances the durability of the spoke and tire.