Assertion: radial tire's durability | /r/HasProperty | improved
Facets:
value: greatly
type: DEGREE
value: according to the present invention
type: OTHER
value: further
type: MANNER
value: especially
type: DEGREE
value: by protecting the carcass ply
type: MANNER
value: by using a polyester cord
type: MANNER
Source sentences:
text: It is said that the durability of can be improved.
text: As mentioned above, according to the present invention the durability of the bead section can be considerably improved by effectively protecting the carcass ply and ends of turned-over ply portion and chafer, which are difficult to adhere to rubber, with the carcass reinforcing member and the composite rubber stiffener.
text: Thus, buckling deformation of the steel cord is prevented and durability is improved.
text: Thus, durability of the carcass is improved.
text: Therefore, the compressive strain of the cord of the carcass in the flex zone at the time of load can be reduced, and the durability against flex break (cord break) can be greatly improved.
text: The durability against is greatly improved.
text: As described above, since the pneumatic bias tire of the present invention has the above-described structure, it has an excellent effect that durability against flex break can be improved.
text: When such a cord is applied to the carcass of the tire, the durability under a heavy load and the steering stability are improved well-balancedly (see JP-A-2000-190705 and JP-A-2002-307908 ).
text: Therefore, in the present invention, the weight of the entire tire is reduced, and even when the weight is reduced in this way, the plurality of bead wires forming the bead core are more effectively suppressed from being dispersed, and the durability is improved.
text: Accordingly, the cross-sectional shape of the bead core can be stabilized and deformation of the bead core can be prevented, so that the durability of the entire tire can be improved.
text: According to the present invention, in particular, by making the corrugated orientation plane parallel to the tread surface and using a specific high-strength steel filament for all the filaments, steering stability, ride comfort, and durability are improved.
text: The present inventor intensively studied to resolve the above-mentioned problems to find that, by using a polyester cord having predetermined physical properties as a reinforcing material of a belt reinforcing layer and ensuring adhesive strength between the polyester cord and rubber, the run-flat durability can be improved while inhibiting vibration during tire rolling and tire protrusion during high-speed traveling, thereby completing the present invention.
text: By adjusting the relationship between the end count of the middle region and the end count of the both end regions of a belt reinforcing layer, the run-flat durability can be further improved.
text: Especially, when the diameter of the cords is from 0.58 to 0.63 mm, the durability thereof is markedly improved.
text: Therefore, the durability of the tire, especially, the durability at the bent or folded-over portions of the layer of aromatic polyamide fiber cords can be improved.