A tire comprising a plurality of tread blocks. At least one tread block includes one or more piers for stiffening the tread blocks while allowing normal lateral (tangential) or circumferential strain for normal braking and motive traction. The piers can extend the entire length dimension of the tread block or portions thereof.

In a tire with a tread that includes tread pattern elements, a circumferential reinforcement, and first and second circumferential grooves, the circumferential reinforcement is formed of a rubber mixture having a stiffness greater than a stiffness of a rubber mixture forming a remainder of the tread. The tire has an outer side on one side of a median plane of the tire, and an inner side on an opposite side of the median plane. The first circumferential groove is disposed axially toward the outer side relative to the second circumferential groove. The circumferential reinforcement includes a reinforcing element having a tapered shape positioned in each of a group of the tread pattern elements disposed axially toward the outer side relative to one of the first and second circumferential grooves, with the reinforcing elements being axially close to an outer-side face of that circumferential groove.

In a tire with a tread that includes tread pattern elements, a circumferential reinforcement, and first and second circumferential grooves, the circumferential reinforcement is formed of a rubber mixture having a stiffness greater than a stiffness of a rubber mixture forming a remainder of the tread. The tire has an outer side on one side of a median plane of the tire, and an inner side on an opposite side of the median plane. The first circumferential groove is disposed axially toward the outer side relative to the second circumferential groove. The circumferential reinforcement includes a reinforcing element having a tapered shape positioned in each of a group of the tread pattern elements disposed axially toward the outer side relative to one of the first and second circumferential grooves, with the reinforcing elements being axially close to an outer-side face of that circumferential groove.

According to the invention, there is provided a pneumatic tire with a 3D kerf, including: one or more 3D kerfs; and a tire having a tread and a shoulder formed at a side surface of the tread. The tread has: one or more grooves that are sunken toward a center of the tread and are formed in a circumferential direction of the tire; one or more kerf grooves that are sunken toward the center of the tread and are formed in a central axis direction of the tire; and one or more blocks which are divided by the one or more grooves and the one or more kerf grooves, respectively. The one or more 3D kerfs come into close contact with and are fixed between the one or more blocks, respectively, as being inserted into the one or more kerf grooves, respectively.

According to the invention, there is provided a pneumatic tire with a 3D kerf, including: one or more 3D kerfs; and a tire having a tread and a shoulder formed at a side surface of the tread. The tread has: one or more grooves that are sunken toward a center of the tread and are formed in a circumferential direction of the tire; one or more kerf grooves that are sunken toward the center of the tread and are formed in a central axis direction of the tire; and one or more blocks which are divided by the one or more grooves and the one or more kerf grooves, respectively. The one or more 3D kerfs come into close contact with and are fixed between the one or more blocks, respectively, as being inserted into the one or more kerf grooves, respectively.

A non-pneumatic tire assembly includes a non-pneumatic tire. The non-pneumatic tire includes an inner circumferential ring and an outer circumferential ring defining an annular space and a cylindrical space inside the inner circumferential ring. A plurality of partitions connect the circumferential rings within the annular space. A ground-contacting tread is located on the outer circumferential ring. A rim, including a plurality of pieces, is located within the cylindrical space. The non-pneumatic tire assembly further includes a hub that is removably connected to the rim.

A tire comprising a plurality of tread blocks. At least one tread block includes one or more piers for stiffening the tread blocks while allowing normal lateral (tangential) or circumferential strain for normal braking and motive traction. The piers can extend the entire length dimension of the tread block or portions thereof.

A tire comprising a plurality of tread blocks. At least one tread block includes one or more piers for stiffening the tread blocks while allowing normal lateral (tangential) or circumferential strain for normal braking and motive traction. The piers can extend the entire length dimension of the tread block or portions thereof.

Noise-reducing device intended to be added to a groove of the tread of a tire comprising an elastic sole preferably extending in a given longitudinal direction, wherein the said sole on one of its faces comprises one or several flexible walls the planes of which run substantially perpendicular to the longitudinal direction of the sole.

Noise-reducing device intended to be added to a groove of the tread of a tire comprising an elastic sole preferably extending in a given longitudinal direction, wherein the said sole on one of its faces comprises one or several flexible walls the planes of which run substantially perpendicular to the longitudinal direction of the sole.