The pneumatic tire of tubeless is in in recent years car and the use on a few van are increasingly extensive, what accordingly here discusses basically is with at present the most commonly used tubeless tire, namely normally embryo of so called vacuum is an object.
The structural cent of tire is 3 parts: Face of carcass, card fabric, cover tyre.
Carcass is softer, tigidity of cover tyre face is bigger, the shade line among rises to enhance carcass intensity and the action that finalize the design, try more the bounce performance that tinsel improves tire.
Passenger car tyre is divided roughly for meridian tire and diagonal tire. The shade line of diagonal tire is arranged by diagonal across, get a name so. Carcass formed the basic framework of tire, arrive from cover tyre face the pliability of sidewall is consistent. Although the noise of diagonal tire is little, cover tyre side is limp, it is good that comfortable sex is taken when low speed travel, and low-cost, but its integral performance is inferior to meridian tire, car manufacturer develops new car for premise with meridian tire, improve of tire ceaselessly as meridian, diagonal tire basically will be washed out.
The ply of meridian tire is equivalent to the basic framework of tire, its arrange direction and tire child midday section is consistent, because the tire when travel wants to bear bigger tangential active force, be those who assure shade line is firm, in its exterior again a certain number of layers are made by the material of high strenth, not easy drawing take bundle of layer (say band tightens a) again, direction of its shade line and child midday section assumes bigger angle of cut (70-75 spends) , material chooses the high strenth material such as fiber of fibre glass, polyamide or steel wire more, have the effect of fixed shade line already, use loincloth to raise the tigidity of tread at the same time. Tire lateral tigidity is less than the tigidity of tread, because flank of the tire when turning so stands the ground transverse strength effect happens be out of shape, the touchdown area of the tread outside assuring thereby keeps basically changeless.
Meridian tire and photograph of embryo of common oblique line are compared, flexibility is big, wearability is good, scroll resistance is little, adherent performance is good, amortize performance is good, carrying capacity is large, not easy and piercing; Defect is sidewall easy breach, be out of shape as a result of side direction big, bring about stability of car side direction to be differred a bit, production technology demand is high, cost is high.
We lift two to explain the norms of diagonal tire and meridian tire reachs his to mark below. Diagonal tire: 5.60-13 4PR 5.60: Naevus タ ?5.6 inch) 13: Suit rim diameter (13 inches) 4PR: ? of naevus デ Kang is equivalent to 4 card fabric) meridian tire: 195/60R 14 85 H 195: Tire is wide (195mm) 60: Tire of? of Hun bore with a reamer child midday section aspect ratio) (60%) R: Tire structure (Radial) 14: Suitable rim diameter (14 inches) 85: Allow load code H: Ultimate rate symbol (H=210km/h)
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