A non-pneumatic tire 1 comprises: a radially inner ring 3 coupled with an tire wheel H; a radially outer ring 2 comprising a radially outermost annular tread portion 5 having electrical conductivity, and a radially innermost second portion 6; and radial link portions 4 connecting between the radially outer and inner rings 2 and 3. The second portion 6, radial link portions 4 and radially inner ring 3 are each formed of a resin material containing carbon black to have electrical conductivity. The resin material comprises 0.5 to 20 parts by mass of carbon black having a BET specific surface area of from 300 to 1500 sq.Math.m/g with respect to 100 parts by mass of its resin component. The tread portion 5 is electrically connected with the second portion 6.

A non-pneumatic tire 1 comprises: a radially inner ring 3 coupled with an tire wheel H; a radially outer ring 2 comprising a radially outermost annular tread portion 5 having electrical conductivity, and a radially innermost second portion 6; and radial link portions 4 connecting between the radially outer and inner rings 2 and 3. The second portion 6, radial link portions 4 and radially inner ring 3 are each formed of a resin material containing carbon black to have electrical conductivity. The resin material comprises 0.5 to 20 parts by mass of carbon black having a BET specific surface area of from 300 to 1500 sq.Math.m/g with respect to 100 parts by mass of its resin component. The tread portion 5 is electrically connected with the second portion 6.

A pneumatic radial tire includes a carcass structure having a pair of sidewalls and a crown, a pair of beads, a tread, a belt structure, and a plurality of reinforcing hoops. The plurality of spaced apart reinforcing hoops are disposed intermediate the crown of the carcass structure and the tread, and are formed of a rigid material coated in an elastomeric material. The plurality of reinforcing hoops includes a pair of outer reinforcing hoops disposed adjacent the sidewalls of the carcass, and an at least one inner reinforcing hoop disposed between the outer reinforcing hoops.

A pneumatic radial tire includes a carcass structure having a pair of sidewalls and a crown, a pair of beads, a tread, a belt structure, and a plurality of reinforcing hoops. The plurality of spaced apart reinforcing hoops are disposed intermediate the crown of the carcass structure and the tread, and are formed of a rigid material coated in an elastomeric material. The plurality of reinforcing hoops includes a pair of outer reinforcing hoops disposed adjacent the sidewalls of the carcass, and an at least one inner reinforcing hoop disposed between the outer reinforcing hoops.

A pneumatic tire includes: an annular structure that is cylindrical and metal where at least an outer side surface in the radial direction is a rough surface; a tread rubber layer that will become a tread portion provided along a circumferential direction of the annular structure on an outer side of the annular structure; and a carcass portion including fibers covered with rubber, provided on at least both sides in a direction parallel to a center axis of the cylindrical structure including the annular structure and the tread rubber layer.

A pneumatic tire includes: an annular structure that is cylindrical and metal where at least an outer side surface in the radial direction is a rough surface; a tread rubber layer that will become a tread portion provided along a circumferential direction of the annular structure on an outer side of the annular structure; and a carcass portion including fibers covered with rubber, provided on at least both sides in a direction parallel to a center axis of the cylindrical structure including the annular structure and the tread rubber layer.

A pneumatic radial tire includes a carcass structure having a pair of sidewalls and a crown, a pair of beads, a tread, a belt structure, and a plurality of reinforcing hoops. The plurality of spaced apart reinforcing hoops are disposed intermediate the crown of the carcass structure and the tread, and are formed of a rigid material coated in an elastomeric material. The plurality of reinforcing hoops includes a pair of outer reinforcing hoops disposed adjacent the sidewalls of the carcass, and an at least one inner reinforcing hoop disposed between the outer reinforcing hoops.

A pneumatic radial tire includes a carcass structure having a pair of sidewalls and a crown, a pair of beads, a tread, a belt structure, and a plurality of reinforcing hoops. The plurality of spaced apart reinforcing hoops are disposed intermediate the crown of the carcass structure and the tread, and are formed of a rigid material coated in an elastomeric material. The plurality of reinforcing hoops includes a pair of outer reinforcing hoops disposed adjacent the sidewalls of the carcass, and an at least one inner reinforcing hoop disposed between the outer reinforcing hoops.

The present application relates to the field of tires and provides a passenger all-steel tire and a turn-up process in a building process thereof. It is advantageous to improve tire strength, impact resistance, endurance and prolong service life. A longitudinal section of the passenger all-steel tire comprises a crown (1) located at an outer side of an upper portion, shoulders (2) located on two sides of the crown (1) and connected to the crown (1), a sidewall (3) connected to the shoulder (2), a bead (6) located at a lower portion of the sidewall (3) and matched with a rim, and a carcass (4) located at an inner side of the longitudinal section and the carcass (4) is a ply of all-steel carcass (41).

The present application relates to the field of tires and provides a passenger all-steel tire and a turn-up process in a building process thereof. It is advantageous to improve tire strength, impact resistance, endurance and prolong service life. A longitudinal section of the passenger all-steel tire comprises a crown (1) located at an outer side of an upper portion, shoulders (2) located on two sides of the crown (1) and connected to the crown (1), a sidewall (3) connected to the shoulder (2), a bead (6) located at a lower portion of the sidewall (3) and matched with a rim, and a carcass (4) located at an inner side of the longitudinal section and the carcass (4) is a ply of all-steel carcass (41).