A non-pneumatic tire includes an attachment body (11) attached to an axle, a ring member (14) including an inner rim (12) fitted onto the attachment body (11) and an outer rim (13) configured to surround the inner rim (12) from the outside in a tire radial direction, and a plurality of connecting members (15) disposed between the inner rim (12) and the outer rim (13) in a tire circumferential direction and configured to connect the rims (12) and (13) to each other, wherein at least a portion of the ring member (14) and the plurality of connecting members (15) are integrally formed of a synthetic resin material having a bending modulus of elasticity obtained through a 3-point bending test pursuant to ISO 178 of more than 300 MPa and a deflection temperature under a load at 0.455 MPa obtained pursuant to ASTM D648 of 62 C. or more.

A non-pneumatic tire includes an attachment body (11) attached to an axle, an inner tubular body (12) fitted onto the attachment body (11) from the outside, an outer tubular body (13) configured to surround the inner tubular body (12) from the outside in a tire radial direction, and a plurality of connecting members (15) disposed between the inner tubular body (12) and the outer tubular body (13) in a tire circumferential direction and configured to connect both of the tubular bodies (12) and (13) while maintaining relative elastic displacement therebetween, wherein at least one of an outer circumferential section of the attachment body (11) and an inner circumferential section of the inner tubular body (12) that are locked to each other is inclined throughout the circumference in the tire circumferential direction from the outside toward the inside in a tire radial direction as it goes from both of the outsides toward the inside in a tire width direction (H), and is formed in a V shape when seen in a cross-sectional view in the tire width direction (H).

A non-pneumatic tire includes an attachment body (11) attached to an axle, an inner tubular body (12) fitted onto the attachment body (11) from the outside, an outer tubular body (13) configured to surround the inner tubular body (12) from the outside in a tire radial direction, and a plurality of connecting members (15) disposed between the inner tubular body (12) and the outer tubular body (13) in a tire circumferential direction and configured to connect both of the tubular bodies (12) and (13) while maintaining relative elastic displacement therebetween, wherein at least one of an outer circumferential section of the attachment body (11) and an inner circumferential section of the inner tubular body (12) that are locked to each other is inclined throughout the circumference in the tire circumferential direction from the outside toward the inside in a tire radial direction as it goes from both of the outsides toward the inside in a tire width direction (H), and is formed in a V shape when seen in a cross-sectional view in the tire width direction (H).

A wheel assembly for traversing a path along a ground surface having a layer of soil, the wheel assembly comprising a central support and an airless flexible covering mounted on the central support and having a plurality of rigid sections and a plurality of flexible sections. The outwardly protruding spokes urge the rigid sections into the layer of soil when the rigid sections contact the ground surface. The flexible sections flex inwardly when the flexible sections contact the ground surface so that the rigid sections and the flexible sections cooperatively form a corrugated pattern in the ground surface without urging the soil to side margins of the airless flexible covering, the corrugated pattern having a plurality of valleys formed by the rigid sections and a plurality of peaks formed by the flexible sections.

A wheel assembly for traversing a path along a ground surface having a layer of soil, the wheel assembly comprising a central support and an airless flexible covering mounted on the central support and having a plurality of rigid sections and a plurality of flexible sections. The outwardly protruding spokes urge the rigid sections into the layer of soil when the rigid sections contact the ground surface. The flexible sections flex inwardly when the flexible sections contact the ground surface so that the rigid sections and the flexible sections cooperatively form a corrugated pattern in the ground surface without urging the soil to side margins of the airless flexible covering, the corrugated pattern having a plurality of valleys formed by the rigid sections and a plurality of peaks formed by the flexible sections.

A wheel suitable for use on sandy surface that includes an inner rigid support and an outer resilient, airless, tire. The tire has two series of flexible spokes that move when the tire is in use under a load to form a ground engaged section of the tire to assume a substantially flat track portion. The flexible spokes revert to their normal configuration when rotated out of the ground engaged section. Each of the two series of spokes have an arc shape, with the two series of spokes leaning in opposite directions.

Provided is a non-pneumatic tire having excellent durability performance. This non-pneumatic tire is provided with an annular tread portion which contacts the road surface, an annular inner peripheral portion which is positioned radially inward of the tread portion, and multiple linking units which join the tread portion and the inner peripheral portion. The tread portion includes a first portion which contacts the road surface, and a second portion which includes an inner peripheral surface facing the inner peripheral portion. The thermal conductivity of the second portion is greater than that of the first portion.

Provided is a non-pneumatic tire having excellent durability performance. This non-pneumatic tire is provided with an annular tread portion which contacts the road surface, an annular inner peripheral portion which is positioned radially inward of the tread portion, and multiple linking units which join the tread portion and the inner peripheral portion. The tread portion includes a first portion which contacts the road surface, and a second portion which includes an inner peripheral surface facing the inner peripheral portion. The thermal conductivity of the second portion is greater than that of the first portion.

A tire abnormality determination system can include: a related information acquisition portion that acquires deterioration-related information that may exert influence on deterioration of a non-pneumatic tire mounted on a vehicle; a first determination processing portion that determines, based on the deterioration-related information, at least one of presence or absence of a sign of an abnormality in the non-pneumatic tire and presence or absence of the abnormality in the non-pneumatic tire; and an output processing portion that outputs a first determination result of the first determination processing portion to a predetermined output destination.

A connecting member (15) includes connecting plates (21, 22) configured to connect an attachment body and a ring-shaped body (13), a plurality of curved sections (21d to 21j, 22d to 22j) curved in a tire circumferential direction are formed at the connecting plates (21, 22) in a direction in which the connecting plates (21, 22) extend in a side view of a tire when seen from a tire width direction, and in the plurality of curved sections (21d to 21j, 22d to 22j) of one of the connecting plates (21, 22), the thickness of a maximum curved section having largest central angles (d to j) about a center of curvature of the curved section (21d to 21j, 22d to 22j) is maximized, and the thickness of a minimum curved section having the smallest central angles (d to j) is minimized.