FIELD: transportation.
SUBSTANCE: invention is attributed to pneumatic tire which has radial reinforcement of frame and contains crest reinforcement formed by at least two crest working layers created of inextensible reinforcing elements intercrossing from one layer to another forming with circumferential direction the angles in the range of 10 to 45°. Tire tread connected with two beads by means of two sidewalls is located over this radial frame reinforcement in radial direction. Crest reinforcement contains at least one layer of circumferential reinforcing elements which has axial width less than axial width of at least one of crest working layers. Ratio of axial width of at least one layer of circumferential reinforcing elements to axial width of tire tread is equal to value which exceeds 0.6 and preferentially exceeds 0.65. Ratio of tire tread axial width to maximum axial width of this pneumatic tire is equal to value exceeding 0.89.
EFFECT: tire strength and reliability is improving.
17 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PNEUMATIC TIRE FOR HIGH-LOAD VEHICLES | 2004 |
|
RU2337014C2 |
| PNEUMATIC TIRE FOR HEAVY VEHICLES | 2004 |
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| PNEUMATIC TIRE WITH RIB TRIANGULATED REINFORCEMENT MEMBER | 1999 |
|
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| PNEUMATIC TYRE RIB REINFORCEMENT | 1997 |
|
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| PNEUMATIC TYPE WITH TRIANGULATED RIDGE | 1999 |
|
RU2223871C2 |
| REINFORCING MATERIAL LAYER FOR PNEUMATIC TIRE, METHOD OF MANUFACTURE OF SAID LAYER AND METHOD OF MANUFACTURE OF PNEUMATIC TIRE | 2000 |
|
RU2250836C2 |
