FI61069C - BYGGNADSSTAELLNING - Google Patents

Description

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FINLAND I - Fl N LAN D (21) Ptt «nttlh» k «mu * - P« «nt» n * »knlng 780992 (22) H« k «ml * ptlvl - Antttknlnpdtc 31.03.78 (23) AI kupli vt - Glttlghetsdag 31.03.78 (41) Tullut | external - Bllvlt offentllg 02.10.78

National Board of Patents and Registration .... M .... ... . . , '. , (44) N Put on a scarf | » date | -

Patent and registration authorities Aniskin utligd och «Ukrlftan publkend 29.01.82 (32) (33) (31) Pyydetty etuoikeus —Begird prlorltet 01.0U. 7 7

Sweden-Sverige (SE) 7703867-7 (71) (72) Sune Sundström, Dombäcksövägen * + B, 890 35 Husum,

Karl-Erik Nyberg, Brännavägen 1 * +, 891 00 Örnsköldsvik,

Ruot s i-Sverige (SE) (7 * 0 Oy Kolster Ab (5 * 0 Scaffolding - Byggnadsställning

The invention relates to a scaffold for roofing of a building and comprising a frame supporting the floor and railings of the scaffold, which scaffold is intended to be hung on the edge of the building Kate or the like, whereby the part below the frame or frames

For building maintenance work, a scaffold is usually erected from the ground and attached to the building at regular intervals. This is a cumbersome and time consuming operation. Even if the work is to be carried out only on the roof and eaves of the building, the scaffolding will be erected from the ground up, which will unnecessarily increase the cost of such special work on the building. The entire rack must be clad to protect pedestrians, etc. from splashes and falling objects. The lower part of the scaffold blocks traffic on sidewalks and streets. In addition, if the scaffold does not have to be connected to the guardrails on the roof itself, the erection of the scaffold will be further complicated in this conventional structure.

An example of a known solution is GB patent publication 1462313, which discloses a roof rack adapted to hang so that a substantially horizontal support is fitted to a bracket on the top surface of the roof or to an opening in the roof. The disadvantage of this structure is nm. the fact that the roof edge is not free for work because the supports are in the way. Other known structures are described in U.S. Pat. No. 3,158,223 and DE Pat. No. 2,901,322. These racks have the same drawback as the structure disclosed in the above-mentioned GB publication. These scaffolds are also supported in the openings in the upper surface of the roof 2 61069, whereby the edge of the roof is not free to work, since the support members passing over the edge are at the front.

The main object of the present invention is esm. eliminating the disadvantage and simplifying the erection of the scaffolding, especially when work is to be carried out only on roofs and eaves, etc. This object is achieved according to the invention by the vertical part of the frame or frames

The invention will be explained in more detail below with reference to the drawings.

Figure 1 shows a perspective view of a part of a building and a scaffold according to the invention fitted to the building.

Figure 2 is an exploded view of another embodiment of the rack fastener of Figure 1.

Figure 1 shows a building with a vertical wall 10 and a roof 11 with a normal slope against the edge of the roof. The scaffold according to the invention comprises a frame with horizontal load-bearing beams 12, at the ends of which away from the building are arranged vertical posts 13 for a guardrail, which in the shown embodiment Floor or scaffold planks 16 are arranged on the horizontal support beams 12 in the longitudinal direction of the scaffold, and latches, not shown in more detail, are arranged on the longitudinal edges of the scaffold, which rise vertically from the floor planks. The slats and latches 14 as well as the floorboards 16 and other latches can be attached to the frame with nails or bolts in holes in the frame, which are not shown in more detail. This makes the stand sturdy and holds the latches in place.

Depending on the length of the rack used, of course, several frames can be arranged in the longitudinal direction of the rack. In smaller buildings, however, a few frames and latches 14 and floorboards 16 arranged between them are sufficient. In the following, one frame with its associated fasteners will be explained. In this case, it is clear that this explanation also applies to the other frames of the complete rack. The frame includes, in addition to the horizontal support beams 12 and the vertical columns 13, a vertical support beam 17 attached to the horizontal support beam of the frame at 18 and an oblique beam 19 attached to the horizontal support beam at 20 and a vertical support beam 17 at 21. according to the invention, a suspension device 22 formed by a rod is attached at 21 to the joint between the beams 17 and 19. The other end of this suspension device 3 61069 extends downwards to one of the beams 17, 19, in this case the beam 19 to which it is locked by a bolt 23. The suspension device 22 extends upwards from the beams 17, 19 and is adapted to pass through an opening 24 in the roof 11. In this case, the upper end or part of the suspension device protrudes outside the upper surface of the roof, to which it is attached by a locking pin 25 which passes through the hole of the suspension device 22. For receiving and distributing the load, a plate 25 is arranged over the roof surface, which receives the suspension device 22 through the hole and acts as a base for the loaded pin 25. The plate 25 is rectangular in the embodiment shown, but may of course also be cylindrical or otherwise shaped. The suspension device 22 is, as shown in the figure, preferably angular so that its upper end is located against a rectangular roof surface with the frame hanging in its position of use, the roof opening 24 having only slightly larger dimensions than the cross-section of the suspension device 22.

The roof rack shown is thus suspended from two or more frame suspension devices 22 on the roof surface 11 itself. The rack is then preferably suspended, as shown in the figure, on the ceiling next to a support beam to which part of the load can be transferred. In order to receive the horizontal load component generated in the frame when loaded from above, the frame is adapted to rest on the wall 10 of the building with a support leg 27 arranged below the horizontal support beam 12 of the frame. which is adapted for your transfer! to the corresponding sleeve 29 below the bar 12. Through the hole 30 in the sleeve 29 and in the rod or tube 28, the support leg can be locked in different displacement positions depending on its distance from the support wall 10.

Figure 2 shows a variation of the support plate 25. The slab, designated herein by reference numeral 31, is adapted to be fastened to the ceiling with bolts 32 with slabs 33 and nuts 34 fitted to the lower surface of the roof or support beam. The plate then has holes 38 in which a suspension device 22 with a locking socket 25 is placed, as described in connection with Fig. 1. The through bolts 32 are secured to the top surface of the plate 31 by lock nuts 35 which, in the embodiment shown, are cylindrical slender and have lower threaded holes for locking the bolts 32 to the top surface of the plate 31. The top of the sleeves 35 has cross holes for two locking pins 37 adapted to hold and lock the top plate 39 threaded on the sleeves 35 at the respective holes 40 so that the cross holes of the sleeves 35 are located above the plate 39. The top plate is, for example, welded to a foot or fastener for poles or the like for a rack fitted to the ceiling, not shown, which can be made, for example, as a guardrail with vertical supports or longitudinal strips or latches. The fastener 36 is then made as an angular or cylindrical tube which acts as a foot of the railing post which is inserted into the tube 36. The tube 36 can also be fitted at an angle of about 15 ° to the slab 39 according to the embodiment shown to compensate for the roof slope. When using an avalanche barrier, this can be fitted to a special bracket 41 fitted to the leg 36.

In the third embodiment, the plate 39 shown in Fig. 2 is fixed directly to the ceiling without the plate 31, whereby it acts as a support plate for the locking pin 25 of the suspension device 22. In order to place the pin in place, the fastener 36 then has upwardly curved recesses 42, as shown in Figure 2.

It is intended that the support plate 26, 31 and / or 39 be permanently fixed to the ceiling, so that the frame of the stand can be quickly and easily mounted by means of a suspension device also from above the roof, as will be explained below. When using the slab 39, the avalanche guard can also be permanently attached to the bracket 41. This replaces the conventional avalanche guards normally mounted on the roofs of buildings. The invention thus offers the possibility of combining a bracket bracket and an avalanche cover.

An essential advantage of the scaffold according to the invention is that it can be very simply installed completely above the roof. In this case, the frame is lowered over the edge of the roof and taken towards the building wall or the like and raised so that the suspension device 22 penetrates the opening 24, after which the device is fixed to the roof surface with a locking pin 25. The longitudinal and floor latches can then be way. If necessary, of course, a conventional installation can also be used, in which the elements of the rack are lifted from the ground.

5,61069

With the embodiments of the invention shown and described, the suspension bracket can be simply and reliably placed in place when performing roof and gutter work without the bracket having to be in contact with the ground. This is a very big advantage because the lower part of conventional scaffolding blocks traffic, etc. The whole conventional scaffolding must also be clad to protect pedestrians from splashes and falling objects, which is expensive when erecting conventional scaffolding.

The design of the special suspension device allows for very fast, simple and reliable installation. When using the special embodiment of the slab 39 shown in Fig. 2, the railings and avalanche barriers can also be fitted to the rack simply and reliably. In this case, it is particularly suitable to use a railing post 13 of the same type, which belongs to the frame of the suspension stand, for a railing which may be fitted to the foot 36 of the ceiling.

It is clear that the presented and described embodiment is only one example of the implementation of the invention and that it can be changed and modified within the scope of the following claims. The scaffold can thus also be used for non-construction work, such as tower, tank, etc. work.