US 5,287,804 AGranted

Mechanical system for displacing modular platforms for fitting out multi-purpose halls

OwnerRocco Compagnoneinventor

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Abstract

A mechanical system constituting a modular driving unit for the programmed displacement of a mobile structure with respect to a reference bearing plane, the structure remaining parallel to itself. The mechanical system includes a frame formed by at least two lateral sides connected together. The frame is fast with the mobile structure. There is a principal upright articulated on the frame by a first end, with the second, opposite end resting on said reference bearing plane. There is also a maneuvering jack articulated by one end on the frame and by the opposite end on the second end of upright. Maneuver of the jack allows the angular displacement of the upright. The assembly of the upright and the jack constitutes with the frame a deformable triangle. A transmission assembly is borne by the frame and is constituted: (i) by a longitudinal shaft located in a plane parallel to the plane of displacement of the jack (ii) by a transverse shaft at right angles to the longitudinal shaft, and (iii) by a pinion controlling maneuver of the jack, the two shafts being kinetically connected together and connected to the pinion.

Claims11

Dependent claims

A mobile platform adapted to be displaced, while remaining in a horizontal plane, between a lower retracted position and an elevated position at an adjustable height, said platform being constituted by one longitudinal beam, one longitudinal shaft running colinearly over the whole of the beam and at least two driving units, wherein each driving unit comprises:

(a) a frame formed by at least two lateral sides connected together and supporting the longitudinal beam;
(b) a principal upright articulated on the frame;
(c) rolling means provided on the free end of said principal upright and resting on a floor;
(d) a maneuvering jack constituted by:
(i) a telescopic sleeve articulated on said frame,
(ii) a movable piston contained inside said sleeve and articulated on the free end of said principal upright,
(iii) an endless screw, and
(iv) a captive nut fast with the piston;
(e) a secondary shaft parallel to the longitudinal shaft;
(f) transmission means for mechanical connection of the longitudinal shaft and the secondary shaft;
(g) a transverse shaft at right angles to the secondary shaft;
(h) a first bevel pinion mounted on said secondary shaft;
(i) a second bevel pinion mounted on the transverse shaft and gearing on said first bevel pinion;
(j) a third bevel pinion gearing on said second bevel pinion for maneuver of the jack and mounted on said endless screw;
(k) connection means for kinetic connection of a shaft belonging to a mobile platform to a shaft belonging to an adjacent platform.

12 more elements

Dependencies are inferred from the claim text.