Assertion: pneumatic radial tire | /r/HasAspect | a carcass layer
Facets:
Source sentences:
text: In order to achieve the aforementioned object, the pneumatic radial tire of the present invention is a pneumatic radial tire having a carcass layer mounted between a pair of right and left bead portions and a belt layer embedded in the outer peripheral side of the carcass layer in a tread portion, wherein a belt cover layer comprising the fiber cords made of the filaments of polyolefin ketone having a structure represented by the following formula (1) disposed around the outer peripheral side of the belt layer, and an elongation rate of the fiber cords composing the belt cover layer is equal or inferior to 2.5% in the tire.
text: According to the present invention, in a pneumatic radial tire having a carcass layer mounted between a pair of right and left bead portions and a belt layer embedded in the outer peripheral side of the carcass layer in a tread portion, as a belt cover layer comprising fiber cords made of polyolefin ketone satisfying specific conditions is arranged on the outer peripheral side of the belt layer, the elastic modulus provided by the polyolefin ketone fiber cords can be exploited maximally, and the high speed endurance and road noise can be improved considerably.
text: In general, conventional pneumatic radial tires for passenger vehicles have a carcass layer in which a synthetic fiber such as nylon fiber and polyester fiber is used as material for the cords therein, and a belt reinforcement layer consisting of two steel belt layers in which the cords in one layer cross those in the other.