Patent ID: 6056304
Filing Date: 2000-05-02
Classification: B60G

Abstract:
An elastic suspension for an axle of an industrial vehicle having elastically yielding means interposed directly between the axle and a chassis of the vehicle, comprising; two substantially identical and superimposed metal plates, the upper one of said plates being rigidly anchored to the chassis of the vehicle, and the lower one of said plates being connected to oscillating supports of the axle, said plates having a side thereof which is directed longitudinally with respect to the vehicle; hinge means provided at said side for hinging along an axis of said hinge means such that said plates are movable mutually apart and respectively mutually closer; elastic means which are capable of absorbing a maximum load that bears on the axle, said elastic means comprising a torsion bar, said torsion bar being keyed, with a first end thereof, to said hinge means and further rigidly coupled, with a second opposite end thereof, to the chassis of the vehicle; a adverse crank arm for connecting said second end of the torsion bar to the chassis; and a cylinder with a stem thereof connected to said crank arm, wherein said stem has a vertical axis and supplies the torsion bar with a necessary preloading for correct operation while allowing the axle, by adjusting a stroke of said cylinder, to be in any of a suspended or fixed condition with respect to the chassis.