Patent ID: 8840123

Claim:
Double-decker coach comprising: a frame; an engine; a front axle, which lies transversely to the principal axis of said frame and which offers support to the aforesaid frame, wherein said front axle comprises a pair of steerable wheels, which lie mounted on bearings, and wherein said pair of wheels can be steered by a driver; a tandem rear axle, which lies transversely to the longitudinal direction of said frame, which is mounted parallel to said front axle and which offers support to the aforesaid frame, and wherein said tandem rear axle comprises a drive axle and a trailing axle, wherein the drive axle comprises two pairs of drive wheels, wherein said drive axle is coupled to said engine, and wherein the trailing axle, which is mounted parallel to the drive axle, comprises two pairs of trailing wheels, wherein the ratio of the distance (C) between the third axle and the rear end of the double-decker coach relative to the mutual distance (B) between the front axle and the trailing axle is between 0.20 and 0.50, wherein the suspension of the steerable wheels, the suspension of the left drive wheels, the suspension of the right drive wheels, the suspension of the left trailing wheels and the suspension of the right training wheels comprises one or more air bellows and wherein a first pressure-regulating device is provided for said air bellows of said suspension of the steerable wheels, in that a second pressure-regulating device is provided for said air bellows of the suspension of said left drive wheels and said left trailing wheels, and in that a third pressure-regulating device is provided for said air bellows of the suspension of said right drive wheels and said right trailing wheels.