Movable modular scaffold system for building works and method to form it

Abstract

A platform scaffold system for building work, which typically is self-moving as a sole integrally body without needing disassembling and re-assembly its sub-systems, whereby the working times are shortened, pieces and components thereof do not go lost, and the maximal flexibility and safety will be reached. The platform is extensible in width and/or length and adjustable, in length, its support comprises two sub-systems (S 3 -S 5 ) which are telescopically coupled to each other and to the platform (S 1 ) by means of “overturned glasses” associated to the frame (T 1 ) of the platform central element ( 1 ). One or several mechanisms act on the telescopically coupled support components also to make them pass from a work static state to a dynamic state on twirling wheels.

1 . Scaffolding or staging systems for the construction of building of any type, in particular of residential buildings and houses, and for the related components like plasters, roofings and the like, said systems comprising a platform extensible in the height, superior uprights supporting said platform, inferior uprights coupled with the heads of said superior uprights and with ground wheels, characterized in that, to be adjustable in several directions, to be movable as integral bodies, to avoid disassembling and re-assembling operations, to hold their components in good and long conditions, to shorten the working times and to guarantee a maximal safety, they comprise following sub-systems:
 a first sub-system (S 1 ) involving a “composable” platform which is extensible also in width and length, and consists at least of a central platform element ( 1 ) and of lateral elements ( 2 ,  3 ) even in situ assemblable to the edges of said central element ( 1 ) with the aid of coupling means, pre-incorporated in said element edges;   a second sub-system (S 2 ) consisting of superior uprights ( 11 - 11 ′,  12 - 12 ′) to selectively support only said platform central element ( 1 ), and of “overturned glasses” ( 10 ) downwardly projecting from the bottom of only said platform central element, stiffening means ( 22 ) being provided at the top of said superior uprights;   a third sub-system (S 3 ) consisting of means ( 15 - 15 ′) associated to the lower ends of said superior uprights ( 11 - 12 ) and means associated to the upper heads of inferior uprights ( 14 - 14 ′) whereby said lower ends ( 15 - 15 ′) telescopically penetrate within said upper heads;   a fourth sub-system (S 4 ) consisting of means ( 50 - 50 ′) associated to the lower ends of said inferior uprights, and of means ( 54 - 54 ′) associated to a low wheel carrier, said inferior uprights ( 14 - 15 ) being stiffened by transversal beans ( 42 - 44 ); and   a fifth sub-system (S 5 ) comprising a carriage (RP) of a structure of immovable plates, and twirling wheels.   
     
     
         2 . System according to  claim 1 , characterized by a sixth sub-system (S 6 ) for the planar and even aerial movement of said S 1 -S 5  sub-systems assembled in only one integral body, said further sub-system (S 6 ) being preferably selected among elevators and hoisters (M 1 , M 2 ) 
     
     
         3 . System according to  claim 1 , wherein said elements ( 1 ,  2 ,  3 ) comprise a frame, the frame (T 1 ) of said platform central element ( 1 ) being provided with said “overturned glasses” ( 10 - 10 ′) having mouths (B-B′) opened at their distal ends for the telescoping engagement with the upper ends of said superior support structure (S 3 ), said mouths being wider than the top openings ( 15 ) of said (S 3 ) uprights ( 11 - 11 ′,  12 - 12 ′). 
     
     
         4 . System according to  claim 1 , characterized in that said uprights of sub-system (S 3 ) are hollow and, besides their upper penetration in said downwards projecting mouths of the platform central element ( 1 ), their lower opened ends ( 15 ′) penetrate telescopically also into the upper end openings ( 15 ″) of the lower uprights ( 13 - 13 ′,  14 - 14 ′) and have transversal cross-section ( 15 ″) higher than that of the lower ends ( 15 ′) of the superior uprights of (S 3 ). 
     
     
         5 . System according to  claim 1 , characterized in that the platform extending quadrangular, rectangular, trapezoidal elements ( 2  and  3 ), are provided at their four apex with anchorage means ( 6 ″) to block the free higher ends ( 16 ) of poles (PUS-PUS′, PIM-PUD′) which are also telescopic and extend down to the ground from said apex. 
     
     
         6 . System according to  claim 1 , wherein adjustable tie bars (TR) are anchored between the apex of the platform extending lateral elements and the outer surface of the (S 3 ) superior uprights ( FIG. 4 ). 
     
     
         7 . System according to  claim 1 , characterized in that said (S 3 ) uprights ( 11 - 11 ′,  12 - 12 ′) make short up-down runs within said (S 2 ) glasses under the action of a lifting first organ preferably a jackscrews, in order to finely adjust the platform height over that of the building work. 
     
     
         8 . System according to  claim 1 , characterized in that the (S 5 ) upright lower ends are provided as well with immovable plates whereupon said uprights rest during the work stationary conditions, as with twirling wheel mechanisms on which the whole integral system is transferred for the movement step, the transfer from the immovable plates to said movable pirouette wheels being carried out under the action of a second lifting organ preferably a second jackscrew which makes the wider uprights of (S 5 ) to telescopically slide on the less wide uprights of (S 3 ). 
     
     
         9 . Method to embody the system according to  claim 1 , wherein:
 the platform width and/or length are extended by applying to its central element ( 1 ) at least one extension element ( 2 ,  3 ) using fixation means pre-disposed on such elements which are already provided with connection means to at least an other platform (PIA′) of a second and/or third integral (SI′) system thanks to their modularity;   the uprights of the two supporting sub-systems (S 3 ) and (S 5 ) are telescopically combined by inserting those of (S 3 ) within those of (S 5 );   the glass mouths (B-B′) protruding from the lower face of the platform central element ( 1 ) are set over the upper ends of the sub-system (S 3 ) upright preferably already assembled with the (S 5 ) wider uprights;   the platform height is adjusted according to the under-work building height by acting on a mechanism preferably a jackscrew (M) associated to (S 3 );   the (S 1 ), (S 2 ), (S 3 ) combined ensemble is placed on static plates associated at the feet of the sub-system (S 5 );   the displacement movement of the whole system to an other work zone is carried out by lifting the integral combined body (S 1 +S 3 +S 5 ) from said immovable plates to the twirling wheel mechanism; and   the whole integral system is lifted by a lifting apparatus in particular by the sub-system (S 6 ) elevator in a new work place different from the ended initial work place.