公开(公告)号：US11554816B2

公开(公告)日：2023-01-17

申请号：US17174593

申请日：2021-02-12

Applicant: FAYMONVILLE DISTRIBUTION AG ,  COMETTO S.P.A.

Inventor： Fabrizio Lippi ,  Alexander Fickers ,  Luca Macagno ,  Gabriele Giordano ,  Gabriele Arnaudo ,  Francesco Froni

IPC: B62D33/06 ,  B62D33/063 ,  B62D33/02

Abstract: A freight vehicle has a frame defining a support surface for the goods to be transported, a plurality of rubberized wheel assemblies with suspensions, the height of which can be adjusted to shift the support surface between a lowered loading position and a raised transport position, and a driver's cab arranged beneath said support surface; the cab being coupled to, and overhanging, the frame by means of an articulated quadrilateral transmission unit and being shifted by pneumatic actuators configured to vertically move the whole cab in relation to the support surface between two extreme end positions, one approaching the support surface and one spaced apart from said support surface, and to arrange the cab in a cushioned intermediate position for the transport of the goods.

公开(公告)号：US12030562B2

公开(公告)日：2024-07-09

申请号：US17278076

申请日：2019-09-20

Applicant: Faymonville Distribution AG

Inventor： Fabrizio Lippi ,  Francesco Froni

IPC: B62D53/06 ,  B60G21/067

CPC classification number: B62D53/068 ,  B60G21/067 ,  B62D53/064 ,  B60G2204/8304 ,  B60G2300/042

Abstract: A semi-trailer for transporting a load to be moved has a wheeled front module having a right-hand front row and a left-hand front row of front bogies each provided with a respective hydraulic suspension driven by its own hydraulic cylinder; a wheeled rear module comprising a right-hand rear row and a left-hand rear row of rear bogies each provided with a respective hydraulic suspension driven by its own hydraulic cylinder; a coupling unit of the wheeled front module for the coupling to a tractor and comprising a pair of hydraulic jacks for transferring a part of the load to be moved to the tractor; a first hydraulic unit interposed between the hydraulic cylinders of the front and rear rows of bogies and configured in such a way that the sum of the instantaneous load-supporting pressures acting on the hydraulic cylinders of the right front row and of the cylinders of the left-hand rear row is equal to the sum of the instantaneous pressures controlling the cylinders of the left-hand front row and of the cylinders of the right rear row; and a second hydraulic unit configured to control the hydraulic jacks based on the sum of the instantaneous load-supporting pressures acting on the hydraulic cylinders of said right front row and of said left-hand front row.

公开(公告)号：US20240326543A1

公开(公告)日：2024-10-03

申请号：US18614656

申请日：2024-03-23

Applicant: COMETTO S.P.A.

Inventor： Fabrizio Lippi ,  Alexander Fickers ,  Gabriele Giordano ,  Francesco Froni ,  Stefano Ghiglione ,  Alessandro Martini

IPC: B60G17/04

CPC classification number: B60G17/0416 ,  B60G2202/154 ,  B60G2500/2062

Abstract: A hydropneumatic system for suspensions of vehicle wheel assemblies is provided, for each suspension, with a respective hydropneumatic cylinder having a first and a second body, which can move axially relative to each other and define respective chambers, axially separated from each other via a piston element; the latter is coupled in a fluid-tight manner to the second body and floats between two stroke end positions in response to the pressures in the two chambers; the two chambers of each hydropneumatic cylinder communicate respectively with a hydraulic supply line and with a pneumatic supply line; the system further has a pressurization device which sets the pressure in the pneumatic supply line to a value at least equal to the pressure in the hydraulic supply line.