A non-pneumatic tire includes a lower ring having a first diameter and an upper ring having a second diameter greater than the first diameter. The upper ring is substantially coaxial with the lower ring. The non-pneumatic tire further includes support structure extending between the lower ring and the upper ring and a tread layer formed of a rubber material. The non-pneumatic tire also has a sidewall formed of the rubber material and extending seamlessly from the tread layer on a first side of the non-pneumatic tire.

A non-pneumatic tire includes a lower ring having a first diameter and an upper ring having a second diameter greater than the first diameter. The upper ring is substantially coaxial with the lower ring. The non-pneumatic tire further includes support structure extending between the lower ring and the upper ring. The non-pneumatic tire also includes a flexible cover having an annulus shape that covers at least a portion of a first side of the support structure, wherein a lower portion of the flexible cover includes a circumferential projection that projects axially outward relative to a region above the circumferential projection.

A tire has a material diffusion barrier, and a method produces the same. In an embodiment, a method for producing a material diffusion barrier on a tire comprises exposing a surface of the tire to a cationic solution to produce a cationic layer on the surface. The method further comprises exposing the cationic layer to an anionic solution to produce an anionic layer on the cationic layer, wherein a layer comprises the cationic layer and the anionic layer. The layer comprises the material diffusion barrier.

A non-pneumatic tire includes a lower ring having a first diameter and an upper ring having a second diameter greater than the first diameter. The upper ring is substantially coaxial with the lower ring. The non-pneumatic tire further includes support structure extending between the lower ring and the upper ring. The non-pneumatic tire also includes an upper sidewall having an annulus shape that covers a portion of a first side of the support structure. The upper sidewall has an inner diameter that is greater than the first diameter.

A tire includes a plurality of side blocks arrayed at a predetermined interval in a tire circumferential direction in a buttress portion. The side blocks include a short portion and a long portion arrayed in a Y shape and a slit that defines a connection portion of the short portion and the long portion and are disposed with a top portion of the Y shape facing toward an inner side in a tire radial direction. A radial height Hb of the side blocks is in the range 0.20≤Hb/SH≤0.50 with respect to a tire cross-sectional height SH.

A tire has a rim protector which is formed at a sidewall and which constitutes an annular protrusion that extends in a tire circumferential direction. The rim protector has not less than two recesses that extend toward the tread region from a location toward the bead region in such fashion as to be directed toward a location in a second direction from a location in a first direction in the tire circumferential direction, the not less than two recesses being arranged with spaces therebetween in the tire circumferential direction. A mutually adjacent pair of recesses among the not less than two recesses are in a positional relationship such that they partially overlap as seen when projected onto a virtual plane perpendicular to a tire radial direction.

The invention relates to a utility vehicle tire having sidewalls (2) and having a tread (1) with shoulder-side profile ribs (3), which shoulder-side profile ribs have shoulder-side profile blocks (6) which are separated from one another by transverse channels (5) and which have in each case one flank surface (6a) running in the direction of the adjoining sidewall (2), wherein, on at least one sidewall (2), there is formed a flank guard (7′) which adjoins the shoulder-side profile blocks (6) and which is elevated in relation to the level of the sidewall (2). It is the intention for the flank guard to be designed such that the risk of crack formation is greatly reduced. This is achieved in that the flank guard (7′) is formed from a multiplicity of wedge-shaped elevations (7), wherein each wedge-shaped elevation (7) adjoins the flank surface (6a) of a shoulder-side profile block (6) and has an outer surface (7a) which, in the tire cross section, transitions without a kink into the flank surface (6a) of the profile block (6).

A pneumatic tire includes a tread portion and a pair of sidewall portions each extending inwardly in a tire radial direction from the tread portion. At least one of the pair of the sidewall portions is provided with at least one side protector protruding outwardly in a tire axial direction. The side protector is provided with a groove, a cut-out portion connected with the groove, and a sipe connected with the groove.

In a pneumatic tire having a point-symmetric structure block pattern, narrow and wide outer blocks having different outer end positions in the lateral direction are alternately arranged in the circumferential direction. Among side blocks provided in a side region, large and small blocks are disposed respectively on the outer sides of the narrow and wide outer blocks in the lateral direction. The lateral and side grooves are continuous such that the groove width of the side groove connected to the wide portion of the lateral groove where the outer block converges toward the inner side in the radial direction, and the groove width of the side portion connected to the narrow portion of the lateral groove where the outer block widens toward the inner side in the radial direction, and the side block is tapered with an inner portion block width in the radial direction converges toward the wide portion.

A plurality of side blocks each has a high protruding portion, an amount by which the high protruding portion protrudes relative to a reference surface which is an exterior surface in a region peripheral to an insignia being not less than a maximum amount by which the insignia protrudes relative to the reference surface. The plurality of side blocks include a first side block which as viewed in the tire radial direction appears to overlap the insignia, and a second side block which as viewed in the tire radial direction appears not to overlap the insignia. An inner end in the tire radial direction of the high protruding portion of the first side block is separated in the tire radial direction from the insignia, and a portion of the high protruding portion of the second side block appears to overlap the insignia as viewed in the tire circumferential direction.