Non-pneumatic tire and a system and method of making same

A system for assembling a circumferential tread and a non-pneumatic tire structure having an upper ring, a lower ring, and support structure extending between the upper ring and the lower ring, the system comprising:

• a curing envelope dimensioned to receive an upper ring of a non-pneumatic tire structure and a circumferential tread,
• wherein the curing envelope includes a first side configured to be secured to a bottom of a first ledge of the upper ring, and
• wherein the curing envelope includes a second side configured to be secured to a bottom of a second ledge of the upper ring;
• a first fastener configured to secure the first side of the curing envelope to the bottom of the first ledge of the upper ring, and
• a second fastener configured to secure the second side of the curing envelope to the bottom of the second ledge of the upper ring.

A non-pneumatic tire comprising:

• a lower ring having a first diameter and a first width;
• an upper ring having a second diameter greater than the first diameter and a second width, the upper ring being substantially coaxial with the lower ring;
• a support structure extending between the lower ring and the upper ring,
• wherein the support structure has a third width that is less than the second width,
• wherein the support structure is affixed to the upper ring such that a first side of the upper ring extends outward from a first side of the support structure, thereby defining a first ledge, and
• wherein the support structure is affixed to the upper ring such that a second side of the upper ring extends outward from a second side of the support structure, thereby defining a second ledge;
• and
• an elastomeric tread circumferentially affixed to a top of the upper ring, wherein no pressure-sensitive adhesive is disposed between the upper ring and the elastomeric tread.