Transport trolley comprising - a frame that extends from a front portion to a rear portion, along a prevailing longitudinal direction (X-X), - the front portion being provided with a pair of front wheels, including a front steering wheel about a steering axis (S-S) parallel to a vertical direction (Z-Z), perpendicular to a ground support of the trolley, and a front idle wheel, pivoting about an axis parallel to said vertical direction (Z-Z), and a tiller, - the rear portion being provided with a pair of rear wheels, including a rear steering wheel about a steering axis parallel to the vertical direction (Z-Z), and a rear idle wheel, pivoting about an axis parallel to said vertical direction (Z-Z), - wherein the front and rear steering wheels (20, 36), are arranged on the same side of the trolley with respect to a centre plane (M-M) of the frame parallel to the prevailing longitudinal direction (X-X), - wherein the trolley comprises transmission means that kinematically connect the tiller with said front and rear steering wheels (20, 36), - the transmission means comprise a front belt or chain kinematically connected with the tiller and with the front steering wheel, and a rear belt or chain kinematically connected with the rear steering wheel, - wherein said front and rear belts or chains (48, 52) are mechanically separated from each other and kinematically connected through the interposition of inversion of motion means, so as to command said front and rear steering wheels (20, 36), to rotate in directions opposite to each other, characterised in that the rear portion comprises a rocker pivoting around a pivoting pin that defines a pivoting axis (B-B) passing through the centre plane (M-M) of the frame parallel to the prevailing longitudinal direction (X-X), said pivoting rocker supporting the rear steering wheel and the rear idle wheel. - a frame that extends from a front portion to a rear portion, along a prevailing longitudinal direction (X-X), - the front portion being provided with a pair of front wheels, including a front steering wheel about a steering axis (S-S) parallel to a vertical direction (Z-Z), perpendicular to a ground support of the trolley, and a front idle wheel, pivoting about an axis parallel to said vertical direction (Z-Z), and a tiller, - the rear portion being provided with a pair of rear wheels, including a rear steering wheel about a steering axis parallel to the vertical direction (Z-Z), and a rear idle wheel, pivoting about an axis parallel to said vertical direction (Z-Z), - wherein the front and rear steering wheels (20, 36), are arranged on the same side of the trolley with respect to a centre plane (M-M) of the frame parallel to the prevailing longitudinal direction (X-X), - wherein the trolley comprises transmission means that kinematically connect the tiller with said front and rear steering wheels (20, 36), - the transmission means comprise a front belt or chain kinematically connected with the tiller and with the front steering wheel, and a rear belt or chain kinematically connected with the rear steering wheel, - wherein said front and rear belts or chains (48, 52) are mechanically separated from each other and kinematically connected through the interposition of inversion of motion means, so as to command said front and rear steering wheels (20, 36), to rotate in directions opposite to each other, characterised in that the rear portion comprises a rocker pivoting around a pivoting pin that defines a pivoting axis (B-B) passing through the centre plane (M-M) of the frame parallel to the prevailing longitudinal direction (X-X), said pivoting rocker supporting the rear steering wheel and the rear idle wheel.