CS458590A3 - Loading platform and a protective roof for an erection site - Google Patents

Description

protective roofs for construction site ^

BACKGROUND OF THE INVENTION The present invention relates to loading platforms (X) used in building buildings, in particular high-rise buildings. The invention also relates to a plurality of multi-storey stacking platforms for waste associated with loading platforms. When building buildings, loading platforms are used to feed the material to the individual floors of the building during its construction and to dispose of them. Loading platforms are used in conjunction with a mobile crane, whose rope delivers material loading platforms or removes waste generated from them.

The known loading platforms are usually formed by two generally horizontal, parallel beams protruding from the floor of a stationary building. The beams are connected by crossbars and ns of the inner ends are provided with vertical struts for anchoring them in a given position. A floor is laid on the cross-members of the protruding part and a protective railing is provided on the platforms.

Co-operating traveling cranes are moving away from the loading platforms. This is especially necessary when the loading platforms on the individual floors of the building are in the vertical direction and the crane must have access to the front end of each of them.

These known loading platforms have the disadvantage that they are difficult to install due to their spatial dimensions and weight. They are also expensive to transport because they occupy a considerable volume in the vehicle loading area. A further disadvantage is the need to manufacture and store several loading platforms, since loading platforms of different sizes are required.

The beams of the known loading platforms are anchored in the desired position by struts interposed between the beams and the ceiling of the building. Installing these struts is difficult and time-consuming. A disadvantage of the known loading platforms is also their limited load capacity. When operating the crane during the construction of the building, there is always danger of falling fragments and other objects from above. Particular attention should be paid to the safety of the driver and the operator by the vehicle unloaded or loaded by the crane and the safety of the vehicle itself. In addition, in the event of rain or high temperatures, crane operation is usually interrupted, because the loaded or loaded vehicle, and with it, the loadbearing agents would be exposed to adverse weather conditions.

In addition to the use of loading platforms, various waste needs to be removed from the individual floors of the building being erected or repaired. The purpose is to use waste chutes, usually located in the building or in openings made in the floors of individual sub-floors of the building. This prevents the finishing of the building and leads to additional costs associated with dismantling the chutes, disposing of the chute in the floors and additionally finishing the building.

The above-mentioned drawbacks are remedied or substantially alleviated by the solution of the invention, which consists in the creation of a loading platform consisting of a pair of generally parallel, transverse 7 V, 7 V, 7 V, 7 V, 7 V, 6 V, 7 V, 7 V, 7 V, 7 V, 7 * 7 -ΐ i V ΐ i *; 11 and A - 1. The two protective side panels are rotatably connected to the beams, adjustable from the erect working position, generally round to the floor, to a folded transport position parallel to the underlay. .

The side panels of the storage platform are located below the plane of the upper beams of the beam in the tilted transport position. They are mounted rotatably on horizontal pins parallel to the beams. The beams have an I-profile cross section whose upper and lower flanges are connected by a vertical web, the side panels being pivotally connected under the upper flange and in an upright position to the upper flange fastened. The axes of the horizontal parts of the side panels are displaced relative to the general plane of the side panels. In the basic embodiment of the collapsible loading platform, the spreaders interposed between the beams with the beams are firmly connected, with the front edge of the deck laid on the beams flush with the front ends of the beams and with the door pivotally connected to the side panels. in such a way that the beams are provided with guiding means carrying a sliding frame assembled from the spacer on the floor thereon, the frame with the floor being movable horizontally horizontally from the outer position to the inner position towards the building carrying the loading platform.

The loading platform may comprise at least one bi-slip extension strut, in an upright position perpendicular to the beams and protruding to the ceiling structure of the building 4 and supported by the upper ends thereof on the building's ceiling structure.

Each of the struts is pivotally coupled to a respective joint hinge, formed by an axially displaceable support pivot connected rigidly to the strut flange and supported in a guide sleeve connected rigidly to the beam web. The uprights are supported by their lower ends in the upright upright and are connected to them by the upper flanges of the respective supports. In a further embodiment, each beam may be provided with a front strut attached to the beam by a front hinge and a rear strut attached to the beam by a rear hinge, wherein the front hinge and the rear hinge are mutually elevated and the struts are stored in the collapsed horizontal transport position. one above the other.

The loading platforms can be assembled into a stack of stacking platforms arranged on top of each other on the floors of the building and supported at their ends by columns that are erected outside the building on which the monorail lifting device is suspended, operable to transport loads from outside a pillar of position above at least one floor at its outer half-building. Preferably, folding loading platforms with underlays mounted on beams and slidable in a horizontal direction parallel to these beams are preferably used in the stacking loading stack system thus assembled.

The loading platforms can be supplemented with a slip-on slip. In this arrangement, the floor of each loading platform is provided with a waste insertion opening, and a vertical channel is supported on each side of each loading platform, supported by at least one of the horizontal 5 beams of the loading platform. A hopper is connected to the channel, which connects to the opening in the floor of the loading platform, so that the waste fed into the opening falls through the hopper into the channel and down into the dump.

The invention also provides a protective roof for use with a lifting device formed by a support frame with a generally horizontal covering panel supported thereon, under which the vehicle or workers can operate and be protected. The cover sheet is provided with a cut-out covered by a sliding cover provided with a notch for the hoisting rope, the notch being perpendicular to the front edge of the cover.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a basic embodiment of a folding loading platform provided with a protective roof; FIG. 2 is a perspective view of the assembled collapsible loading platform of FIG. 1; Fig. 3 is a perspective view of the collapsible loading platform of Fig. 1 in a partially collapsed state; FIG. 4 is a front view of the collapsible loading platform of FIG. 1; - a front view of the collapsible loading platform of FIG. 1 in a folded transport condition; Fig. 6 is a perspective view of a collapsible protective cover used with the platform of Fig. 1; Fig. 7 is a perspective view of the collapsible canopy of Fig. 6 in a partially collapsed state; FIG. 8 is a front elevational view of the collapsible canopy of FIG. 6 in a collapsed condition; Figure 9 is a plan view of the collapsible loading platform of Figure 1; Fig. 10 is a top view of the collapsible loading platform of Fig. 1; Fig. 11 is an enlarged, fragmentary, detailed view of the face of the loading platform of Fig. 1; 12 is a perspective view of a component of the collapsible loading platform of FIG. 1; FIG. 13 is a top plan view of the overhead guard of FIG. 6; Fig. 14 is a side elevational view of the protective roof of Fig. 13; Fig. 15 is a front view of the protective roof of Fig. 14; 16 is a perspective view of a folding loading platform with severs; FIG. 17 is another perspective view of the collapsible tilting platform of FIG. 16; Fig. 18 is a perspective view of the collapsible loading platform of Fig. 16 in a partially collapsed state; Fig. 19 is a perspective view of the collapsible loading platform as shown in Fig. 16, showing its position and anchoring; 20 - An enlarged elevation view of the adjustable jacks inserted between the intermediate supports and the ceiling of the building; Fig. 21 is a front elevational view of the lower end of the side panel stiffener attached to the beam web; 22A, B - Figs. 19; FIG. 23 is a front elevational view of the collapsible loading platform beam as shown in FIG. 16, with folded struts inserted therein; Fig. 24 is a cross-sectional view of the rotary kits of Figs. 22A, B; Fig. 25 is a perspective view of the rotary assembly of Fig. 24; FIG. 26-a side view of the rotary kits of FIG. 24; Fig. 27 is a perspective view of a modification of the embodiment of a collapsible loading platform according to Figs. 16, with folding floor; FIG. 28 is a perspective view of the collapsible loading platform of FIG. 27, partially folded; FIG. 29 is a perspective view of the collapsible loading platform of FIG. 27, with the floor raised; FIG. 30 is a side elevational view of the loading platform of FIG. 27; FIG. 31 is a side elevational view of the loading platform of FIG. 27, in a working position with a suspended load; Fig. 32 is a perspective view of the stacking loading platform of Fig. 16 but with a horizontally displaceable floor; FIG. 33 is a perspective view of the collapsible loading platform of FIG. 32, with the floor being moved away to allow the load to be suspended on the rope; Fig. 34 - perspective view of the protective roof; Fig. 35 is a perspective view of the protective roof of Fig. 34 with a scaffold mounted thereon; 36 is a top view of the protective roof of FIG. 34 with a scaffold mounted thereon; Fig. 37 is a front elevational view of the protective hood of Fig. 35; 38 is a perspective view of stiffeners of the end portion of the safety shield of FIG. 37; Figure 39 is a perspective view of an expanded embodiment of a collapsible loading platform; FIG. 40 is a perspective view of the assembled folding loading platform assembly with a hoisted hoist and an associated slip; Fig. 41 is a perspective view of a variant of the embodiment of the system of Fig. 40, with the lift cage suspended; Fig. 42 is a side elevational view of the loading platform system of Fig. 40; Fig. 43 is a side elevational view of the loading platform assembly of Fig. 41; Fig. 44 is a perspective view of the protective screen with the crane rope passing through; FIG. 45 is a perspective view of the overhead guard of FIG. 44, with a different cover section position; Fig. 46 is a perspective view of a construction site with a protective screen of Fig. 44; Fig. 47 is a perspective view of the protective pad of Fig. 44 with an alternative embodiment of its support; 48 is a front view of the protective canopy of FIG. 49 is a perspective view of a collapsible loading platform with associated waste slip; Fig. 50 - another perspective view 8 of the arrangement of Fig. 49; Fig. 51 is a front elevational view of the loading platforms arranged one above the other, with the slipways attached; Fig. 52 is a plan view of a collapsible loading platform with associated waste glass as shown in Fig. 49; Fig. 53 is a perspective view of one end of one of the folding loading beams supported by the support roll.

Figures 1 to 15 show a basic embodiment of a collapsible loading platform 10 provided with a protective cover 11. The collapsible loading platform 10 is composed of a pair of generally parallel to parallel running I-beams 12 formed as a welded structure . Each I-beam 12 is formed by an upper flange 13 and a lower tube-shaped flange 13 'connected by a web 14. Spacers 15 are placed between the beams 12, laid on the lower flanges 13 of the beams 12 and connected thereto by fastening screws 16 / fig. . 11A /.

A floor plate 17 is attached to the spacers 15. The side panels 18, which can be pivoted from the erect working position generally perpendicular to the fixed floor 17, are pivotally connected to the beams 12, in a folded transport position parallel to the floor 17 / fig. 2 to 5. In this basic embodiment, the side panels 18 are pivotally connected to the webs 14 of the beams 12 / fig. Alternatively, however, the side panels 18 may be pivotally connected to the underlay 17.

As can be seen from FIGS. 10 and 11, the side panels 18 are formed by plates 19 mounted in the frames 20. The frames 20 are terminated by pivot lugs 21 slid onto the fixed lugs 22 welded to the 9 webs 14 of the beams 12, to the pivotable pivot points. the meshes 21 and the fixed meshes 22 are fitted with horizontal pegs 23. To secure the side panels 18 in their erected working position, these are secured by locking screws 24 to the upper flanges 13 of the beams 12. The pivot lugs 21 are pivoted to the frames 20 so that the holes provided therein the post pins are offset from the plane of the frames 20 towards The front ends of the side panels 18 are provided with hinges 25 for insertion of the vertical pins 26 / fig. 12 /, connecting the front protective door 27 to each other. Between the front ends of the beams 12 a retaining cross member 28 is inserted to prevent material falling from the front end of the loading platform 10.

The upper ends of the side panels 15 are provided with vertical sleeves 29 into which the locking pins 30 of the protective cover 11 can be inserted to secure it in position. The protective cover 11 is formed by the side plates 31 and the upper plate 32, which are pivotally connected so that the side plates 31 can be folded into the transport position / fig. 6 to 8. The top plate 32 is provided with a reinforced notch 31 / fig. 17 /, allowing the crane rope to pass.

The beams 12 are provided with hooks or lugs 34 / fig. 11), the possibility of suspending the folded loading platform 10 on the crane rope and raising it to the desired position. In order to change the width of the collapsible loading platform 10, it is possible to use spacers 15 of different lengths and of the floor 17 of another width. In such cases, it is also necessary to use a protective front door 27 of corresponding width and a retainer crossbar 28 of corresponding length. The beams 12 may also be provided in other 10 lengths and with other cross-sectional profiles and dimensions to accommodate different working requirements and different assumed loads of the collapsible loading platform 10.

FIGS. 16 to 26 show a variant embodiment of a folding loading platform. Its basic arrangement is practical with the folding loading platform of FIG. 1. Its spacers 15 are fixedly bolted to the beams 12 and carry a solid underlay 17, preferably made of sheet metal. The stiffeners 41 of the side panels 18, consisting of plates 19 fixed in the frame 40, are connected by pivot pins 36 to the webs 14 of the beams 12 / fig. 21 / and in their working position, their flanges 42 are bolted to the upper flanges 13 of the beams 12 / fig. 16 /. The side panels 18 can also be pivotally attached directly to the floor 17 and secured to the beams 12 in the upright position.

In addition, in this embodiment, the folding loading platform comprises two pairs of rear struts 43 and front struts 44 connected to the legs 14 of the beams 12 so that they can be moved from an upright working position, generally perpendicular to the beams 12, to a tilted transport position between the beams 13 and 13 'of the beams 12 FIG. 17 and 23, respectively. Adjustable jacks 40 can be inserted between the upright and secured rear struts 33a of the front strut 44 and the ceiling or building structure above the loading platform. 19 and 20), exerting a thrust force on the rear struts 33 and the front struts 44 and thus securing the beams 12 in their working position.

The rear struts 43 and the front struts 44 are rear hinges 61 and front hinges 48 / figs. 22A.B / pivotally connected to the webs 14 11 of the respective beams 12. Each rear joint 46 and front joint 48 comprise a rigid housing 49 welded to the web 14 of the beam 12.

A pivot pin 50 extending slidably into the fixed housing 49 extends through an opening in the web 14 and has a stop 51 at one end and firmly connected to the other end by a radially positioned side flange 52 with a respective rear strut 43 or front strut 44.

Each rear strut 43 and the front strut 44 are provided with a lower flange 53 with holes for the connecting bolts 54 allowing the rear strut 43 or front strut 44 to engage with the respective flange 13 of the truss 12. The pivot pins 50 of the rear struts 43 are on the trusses 14 of the beam 12 is located lower than the pins 50 of the front struts 44 / fig. 26 /. This makes it possible to insert the folded struts 43, 44 of the intersection 13 and 13 / of the respective beam 12 so that the rear strut 33 is inserted from the front strut 44 / fig. In order to tilt the rear struts 43 and the front struts 44 from their erect working position to the transport position and vice versa, it is necessary to move their pivot pins 50 in the rigid sleeves 49 (FIGS. 24 and 25). their generally horizontal transport position and generally vertical working position and their fitting 13 or their insertion between the flanges 13 and 13 / of the supports 12. The front struts 44 are screwed in their erect working position with the side panels 18, so These act as stiffeners 12 to increase the load capacity of the collapsible loading platform

The embodiments of the loading platform according to the invention have the advantage that the platform can be folded into a generally flat shape. This makes it possible to stack the stacked loading platforms together, so that storage or transport takes up less space. For securing the stacked loading platforms themselves, the flanges 13, 13 'of their beams 12 can be provided with mating pins and the apertures are formed in the upper flanges 13 and openings in the lower flanges 13'. The position of the loading platform according to the invention in its place of use is simple and relatively fast. The folded loading platform is lifted by the crane to the desired height and pushed onto the respective building floor. The side panels 18, the rear struts 43 and the front struts 44 are then erected, bolted to the beams 12, and the loaded loading platform is secured in its working position.

27 to 33 show a collapsible loading platform which is a modification of the loading platform of FIGS. In this particular embodiment of the loading platform, the side panels 18 are pivotally connected to the floor 17, which is connected by two hinged beams 61 pivotally connected to the beams 12. This is a system of hinged beams 61, floor 17, side panels 18 and door 27 after folding, it can be pivoted to the position of the wheels relative to the beams 12 / fig. 29 and FIG. 31]. With this tilting in the loading platform, the crane rope passage with the suspended load is released. 31 /. In this embodiment, the support frame 62 supporting the floor 17 may be mounted on rollers running along the guides in the beams 12. The frame 62 with the floor 17 can therefore be moved horizontally in the directions of the arrow 63, thereby also allowing the passage for the crane rope with the suspended load to be released. The side panels 18 and the door 27 can thus be pivotally connected to the beams 12. The running rollers can be moved in the beams 12 between the stops provided therein.

The embodiments of the collapsible loading platforms shown in FIGS. 27 to 33 are advantageous in that the individual loading platforms can be arranged vertically on the individual floors of the building by an overhang in the common axis, thereby allowing the crane rope to pass through the load between the beams 12 projecting from the building.

Figures 34-38 show a protective roof 70 consisting of a plurality of parallel and mutually spaced beams 71. Struts 72 protrude perpendicularly from the beams 71 to allow the protective roof 70 to anchor in its working position. Floor plates 73 are inserted between the beams 71 and the front edge of the protective roof 70 is provided with a sloping protective end plate 74 supported by angular brackets 75 connected to the webs 7 5 of the beams 71. carrying scaffolding 77 (FIG. 1). 36 /, allowing work on the outside of the building.

Fig. 39 shows a further variant of the folding loading platform 80, consisting of a narrow portion 81 and an expanded portion 32a provided with side panels 85. The narrow portion 81 is sized to extend between the scaffold posts 83. provides the often desired extended outer portion of the tilting platform.

FIGS. 40 to 43 show a stack 90 of loading platforms 93 useful for building or repairing a multi-storey building 91. The stack 90 is comprised of a plurality of folding loading platforms 93 arranged above a vertical axis axis. Folding loading platforms according to FIG. 16 or FIG. 32 may suitably be used as platforms 93. The platform beams 94 of the platforms 93 protruding from the building 91 are supported by the posts 96. The rear ends of the horizontal beams 94 may be anchored in the floor structures 92 of the building 91.

The upper ends of the uprights 96 are connected by horizontal longitudinal and transverse beams 97 carrying a monorail 2-way device 98 consisting of a hoist 100 suspended on a rail 9, 9

The hoist 100 may be suspended on the rail 99 by the carriage and may be used to feed the building material in the rope-suspended magazine 101. In this case, the platforms 93 are expediently covered with sliding floors 95. If material is to be supplied to one of the platforms 93, the platforms 9 ' lying above the flats 22 ' towards the building 91, and the raised material container 101 can be mounted on the platform 93, the floor 95 of which is in the extended position.

Alternatively, an elevator car 103 (FIG. 3) may be hung on the rope of the hoist 100 suspended on the rail 99. In this case, the platforms 93 can be provided with non-slip flooring 95.

The described embodiments of the folding loading platform system 90 have the advantage that a mobile crane is not required when used. It is replaced by hoist 100 with the required load.

The loading platform 90 of the loading platforms 93 may conveniently be completed with a waste slip 105 suspended on the side panels 104 of the individual loading platforms 93. The waste slip 10 is an assembly of vertical, mutually connected channels 106 terminating at the bottom of the outlet 107 of the loading platform. where the waste falls into the dispenser 108.

Each channel 106 includes a hopper 109 adjacent to the hopper opening provided in the floor 95 of the respective web 93 and closable by the cover.

The combination of the loading platform and the waste chute is shown schematically in Figs. 49 to 52. The loading platform 130 is formed by a pair of generally parallel and parallel horizontal beams 132 anchored into and projecting from the building.

Spacers 133 are supported between the beams 132 carrying the floor 134 with the ramp 135. In the floor 134, a hopper 136 is provided, covered by a normally removable or hinged cover 137. A removable or foldable cross-border 138 is also inserted in the opening 136.

Side panels 139 are rotatably mounted on the beams 132 with a front door 140. On the side panels 139, a waste slip 131 is formed by a pair of suspension hooks 142 formed by a vertical channel 141 provided with an upper flange 145 and a lower flange 14 6. the second pair of suspension hooks 143 can be hinged by nano-beams 132. The channel 141 is connected to a hopper 144 adjoining the hopper 136 provided in the floor 134 so that the waste fed into the hopper 136 falls through the hopper 144 into the channel 141. Bottom flanges 146 In this case, the ducts 141 are arranged so as to be able to be connected to the tapered duct inserts 147 which are movable into the adjoining ducts 141 suspended on the lower-lying loading platform 130 (FIG. 1). 51 /.

This combination of a loading platform system 130 and a waste slip 131pro. 40 / has the advantage that the waste slip 131 does not require its own supporting structure because it is simply suspended on the loading platforms 130. In addition, the waste slip 131 is located outside the building and thus does not prevent the course of normal construction work. It also allows for smooth finishing of the exterior of the building. It also does not require any special openings in the individual floors of the building.

Fig. 44 to Fig. 48 shows a protective roof 110, preferably a sheet metal 111 inserted into a rectangular frame 112. The sheet 111 serves to protect workers and vehicles operating under the protective cover 110. a cutout 113 through which the load 115 suspended and lifted on the rope 114 of the hoist or crane can pass. The cut-out 113 extends from the front edge of the sheet 111 and is normally covered by a cover 116 slidably disposed on the sheet 111. The movement of the cover 116 can be guided by the guides so as to move above the cutout 113. In the cover 116 a notch 11/7 extending from its front edge of the cover is provided The inlet portion 118 of the slit 117 is widened by a rounding to facilitate the introduction of the rope 114. 17 When a load 115 is suspended on the rope 114 or is lifted, the operator brings the rope 114 from its position to the notch 117 so as to hang above the load 115 Then the load 115 is suspended or suspended and the rope 114 is moved from the notch 117 to a position in which it can be lifted without contacting the load 115 with the protective cover 110.

Fig. 46 shows a protective canopy 110 mounted on the girder beams 119 anchored in their position by the struts 120. As can be seen from the figure, the protective canopy 110 is positioned at a sufficient height above the ground to allow the vehicle to travel beneath it and be protected by it. .

Fig. 47 and Fig. 48 show a protective canopy 110 not supported by a frame structure 122 formed by a horizontal frame 124 not supported by posts 123 at such a height that a vehicle 125 can be driven under the frame structure 122 and protected. The frame structure 122 can be expediently positioned in front of the building front or in front of a stacking platform system. When installing folding loading platforms, the ends of their beams 12 / fig. 1 / on the concrete floor of a building carrying a loading platform. Thereby the crane carrying the platform is subjected to a shock load and the concrete floor of the building is damaged. To alleviate this problem, the rear ends of the beams 12 can be provided with rollers. As shown in Fig. 53, the rear ends of the beams 12 can be provided with flanges 150 carrying rollers 151. The rollers 151 are in this case positioned in height so that only the rollers 12 are in contact with the concrete floor when tilted. During the installation of the loading platform 18, its beams 12 are tilted so that only the rollers 151 are in contact with the concrete floor of the building.

Claims (14)

/ r τι / u w ./ (_> PATENT CLAIMS - 19 - A loading platform, consisting of a pair of generally parallel-arranged, transversely spaced horizontal beams, of a plurality of spacers interposed between the beams and of the floor supported by these spacers, characterized in that the side panels (18) of the displaceable upright are connected to the beams (12). the working position, generally perpendicular to the floor (17), to the folded transport position parallel to the floor (17). 2. Loading platform according to claim 1, characterized in that the side panels (18) are located in the lowered transport position by means of the upper strips (13) of the beams (12). Loading platform according to claim 2, characterized in that the side panels (18) are rotatably mounted on horizontal bolts (23) with beams (12). 4. Loading platform according to claim 3, characterized in that the beams (12) are in cross-section in the shape of an I-profile, whose upper flange (13) and the lower flange (13 ') are connected by a web (14), the side panels (18) are pivotally connected beneath the upper flange (13) under the upright (14) and mounted in an upright position to the upper flange (13). 5. Loading platform according to claim 4, characterized in that the axes of the horizontal studs (23) of the side panels (18) are offset relative to the general plane of the side panels (18) towards the webs (14) of the beams (12). 20 6. Loading platform according to claim 4, characterized in that the openings (15) interposed between the beams (12) are rigidly connected to the beams (12), wherein the front edge of the floor (17) is supported by spacers (15). one plane with the front ends of the carrier (12) and with the door (27) connected rotatably to the side panels (18). 7. A loading platform according to any one of claims 1 to 5, characterized in that the beams (12) are provided with guiding means carrying a sliding frame (62) assembled from a spacer (15) on a non-adjustable floor (17), the frame (62) with the floor (17) is displaceable between the beams (12) horizontally horizontally from the outer position to the inner position towards the building carrying the loading platform. 8. A loading platform according to any one of claims 1 to 7, characterized in that it comprises at least one pair of foldable extended struts (44), in an upright position perpendicular to the beams (12) and with their upper ends abutting the ceiling structure either. wherein each of the struts (44) is pivotally coupled to a respective beam (12) of an articulation (48) formed by an axially displaceable pivot pin (50) connected rigidly to the side flange (52) of the strut (44) and mounted in a guide sleeve (49) connected rigidly to the table (14) beam (12). 9. Loading platform according to claim 8, characterized in that the struts (44) are supported by their lower ends on the upper flanges (13) of the respective beams (12) and are connected to them by means of their lower ends. Loading platform according to claim 8 or 9, characterized in that each beam (12) is provided with a rear strut (43) attached to it by a rear joint (46) and a front strut (44) attached to with the front hinge (48), the rear hinge (46) and the front hinge (48) being offset from each other and the rear hinge (43) and the front hinge (44) stacked one above the other between the upper flange (13) and the bottom the flange (13 ') of the beam. A stack of loading platforms comprising a plurality of folding loading platforms according to any one of claims 1 to 10, characterized in that the folding loading platforms (93) arranged one above the other on individual floors (92) of the building (91) are at their ends protruding from the building (91), not mounted (96), erected outside the building (91), on which a monorail lift (98) is suspended, operable for transporting loads from a position outside the columns (96) to a position above at least one floor (95) at its external position relative to the building (91). 12. A loading platform assembly according to claim 11, characterized in that the platforms (95) mounted on the support (s) (94) of the loading platforms (93) are displaceable in a horizontal direction parallel to the beams (94). 13. A loading slip combination comprising a loading platform assembly according to claim 11, wherein the shelf (134) of each loading platform (130) is provided with a hole (136) for throwing waste and at the side of each loading platform (130). a vertical channel (141) is suspended but supported by one of the horizontal beams (132) of the loading platform (130), with a hopper (144) connected to the channel (141) to the opening (136) in the floor (134) so that the waste to the hole (136) falls through the hopper (144) into the channel (141) and from there to the hopper (107), 14. Protective canopy for use with a lifting device, formed by a support frame and supported generally by a horizontal covering panel under which vehicles or workers can operate and protected, characterized in that the cover sheet (111) is provided with a cutout (113) covered by a sliding cover (116) provided with a notch (117) for the rope (114) of the lifting device, the notch (117) being perpendicular to the front edge of the cover (116). Representative: