Heavy duty vehicle with a tread including a plurality of parts

Details Heavy duty vehicle with a tread including a plurality of parts Heavy duty vehicle with a tread including a plurality of parts

B - Operations, Transporting

60

C

B60C 11/00 (2006.01) B60C 19/00 (2006.01)

Patent

CA 2700791

The invention relates to a vehicle, such as a transport vehicle or a civil engineering vehicle that comprises at least two axles, one of which at least comprises at least two assemblies mounted so as to be paired and fitted with tyres. According to the invention, each tread of the tyres fitted on the assemblies mounted so as to be paired, comprises, at least on the outer surface thereof, at least two circumferential portions made of polymer mixtures having different physicochemical properties, the distributions of the polymer mixtures in the tread of each tyre being symmetrical relative to a longitudinal plane extending through a point located halfway between the two assemblies mounted so as to be paired.

L'invention concerne un véhicule, tel qu'un véhicule de transport ou un engin de <= Génie Civil >=, comportant au moins deux trains, au moins l'un d'eux comportant au moins deux ensembles montés jumelés équipées de pneumatiques. Selon l'invention, chacune des bandes de roulement des pneumatiques équipant deux ensembles montés jumelés comporte au moins sur sa surface extérieure au moins deux parties circonférentielles, constituées de mélanges polymériques présentant des propriétés physico--chimiques différentes, les répartitions desdits mélanges polymériques dans les bandes de roulement de chacun des pneumatiques étant symétriques par rapport à un plan longitudinal passant par un point à mi- distance entre les deux ensembles montés jumelés.

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