PNEUMATIC RADIAL TIRE FOR HEAVY LOAD

PURPOSE:To use a tire on good and bad roads further prevent its uneven wear, in the captioned tire having at least five tread main grooves, by changing a sloped angle of groove walls at each main groove of central part, side parts and intermediate parts between these side parts and the central part....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ENDOU KAZUYUKI, MAKINO SHIGEO
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES OR ARRANGEMENTS RELATED TO TYRES PERFORMING OPERATIONS REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL TRANSPORTING TYRE CHANGING OR REPAIRING TYRE INFLATION VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To use a tire on good and bad roads further prevent its uneven wear, in the captioned tire having at least five tread main grooves, by changing a sloped angle of groove walls at each main groove of central part, side parts and intermediate parts between these side parts and the central part. CONSTITUTION:In a tire of tread pattern, having at least five circumferentially extended zigzag shaped tread main grooves, a central part circumferential main groove 1, arranged in the central area of a tread Tr, a pair of side part circumferential main grooves 3, partitioning outermost side ribs 6 of the tread Tr, and intermediate part circumferential main groove 2, arranged between these grooves, the main groove 1 is formed to laterally symmetrical cross sectional shape sloped at a prescribed angle. While the main groove 2 is formed to laterally symmetrical cross sectional shape having a folding linear groove wall slope, further the main groove 3 is formed to laterally unsymmetrical cross sectional shape with a sloped angle of an axially outside groove wall larger than that of an axially inside groove wall.