NL1036838C2 - METHOD AND APPARATUS USED FOR DUTIES WHICH REQUIRE A SCREENER AND FOR WHICH THIS DOES NOT BE DISMOSED FOR TRANSPORTATION AND STORAGE, BUT IF AN ENTIRE HOLDS CAN BE FOLDED. - Google Patents

Description

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Title: Method and device used for tasks where a scaffold is required, and where it does not have to be dismantled for transport and storage, but can be folded as a whole.

Scaffolding is used for various activities, for example bricklaying the facades of a building. The parts of these scaffolding are generally supplied separately and assembled at the construction site into a construction which spatially takes on a larger size than the individual parts during transport. This method is used for both traditional scaffolding and system scaffolding. However, the assembly process as well as the dismantling at the construction site is unfavorable for the following reasons: (a) The parts are relatively heavy and put a great deal of physical strain on the builders.

(b) The work takes a lot of time and sometimes has to take place in adverse weather conditions.

20 (c) The work presents significant safety risks.

These disadvantages can be overcome by assembling the scaffolding in advance in a production hall and then transporting it. However, the transport and storage of the assembled scaffolding is not economically attractive due to the spatial format.

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The object of the invention is to avoid the aforementioned disadvantages (a), (b) and (c). For this, the scaffolding is made collapsible so that the time for assembly and disassembly at the construction site is shortened. The scaffolding is assembled in a horizontal position, which improves safety and working conditions. The scaffolding is then stored in the folded position. After transport, the scaffolding is folded out again at the construction site and then placed in the vertical position. The disassembly consists of placing back in a horizontal position and folding the scaffolding 35 so that it is ready for transport again.

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In addition to the folding principle, the patent application also relates to the design of the hinged parts that are necessary for the folding movement. The hinged parts 5 are designed such that they can be fully coupled in the folded-out position. The parts that must be able to pivot freely relative to each other for collapsing are rigidly connected after coupling.

The advantages of this locking are: (a) the stability of the folded-out scaffolding is no longer solely dependent on the stabilizing braces, which increases safety, (b) the dimensional stability of the scaffolding is improved compared to the traditional scaffolding with scaffolding couplings.

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The invention will now be explained in more detail with reference to a number of figures.

Spatially speaking, 3 folding movements are possible: 1. The hinged parts are on the short sides (figures 1a, 1b, 1c), these hinged parts taking a horizontal position when the device is in the position of use.

2. The hinged parts are on the long sides (figures 2a, 2b, 2c), these hinged parts taking a horizontal position when the device is in the position of use.

3. The hinges are in the vertical tubes when the device is in the position of use. This solution has disadvantages in practical terms and may already be patented, therefore this variant is not considered further.

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Explanation of figures:

Figure 1a: 5 This shows the collapsed state that is used for storage and transport. The reference (s) stands for the hinge that is schematically lowered here. The hinge is not blocked in this illustration, which is indicated by an open ellipse. The reference (w) stands for the work floor which in the final position 10 is used for the access of persons. The hinged parts are placed here on the short horizontal sides of the scaffolding, these parts occupying a horizontal position when the scaffolding is in the position of use.

Figure 1b:

This shows the unfolded state where the scaffolding with the long sides is still horizontal. The hinged parts are blocked after folding out. A blocked hinge is indicated with a closed ellipse so that it is clear that this operation must still take place here.

Figure 1c

Here the folded-out scaffold is shown in the vertical position of use, for the lifting of the scaffold the hinged parts are coupled, which is indicated by a closed ellipse.

2a, 2b and 2c:

The hinged parts are now placed on the long horizontal sides, the method being further the same as the description of Figures 1a, 1b, 1c, respectively.

Figure 3:

A possible embodiment of the hinge and coupling has been drawn: The plate (u) is provided with a notch (v) with which the plate can rotate around the hinge pin (b). This hinge pin (b) is inserted through the plate (p) which is clamped to a tube with the aid of a scaffolding coupling. The nut (m) must be removed before opening. To connect the plate (u), the nut (m) is reapplied to the thread (d).

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In this setup, scaffolding couplings with bolts are assumed, of course it is also possible to use scaffolding couplings with keys for fixing plate (p). This is also the case with the coupling construction which, instead of with a nut (m) and screw thread (d), can also be designed with a key.

Figure 4:

The hinge is drawn in the open position, the work floor parts 10 are marked with (w).

Figure 5:

The hinge is drawn in the coupled position.

Figure 6:

The scaffolding has been collapsed for transport.

Figure 7:

A detail of the collapsed scaffolding has been drawn.

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Figure 8:

The scaffolding is drawn in the unfolded position and in the vertical position.

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Claims (6)

Method and device used for tasks where a scaffold is required, and where it does not have to be dismantled for transport and storage, but can be collapsed as a whole. Device as mentioned under claim (1) wherein it can be folded out and placed vertically on the construction site. 3. Device as mentioned under claim (1) and (2), wherein the hinged parts necessary for folding are provided with a hinge only at the ends. Device as mentioned under claim (1) and (2), wherein the hinged parts are designed such that the movement thereof can be blocked when the scaffolding is folded out. 20 5. Device as mentioned under claim (1) and (2), wherein the hinged parts necessary for folding them in are placed on the short sides of the device, and wherein these hinged parts assume a horizontal position when the device is in the position of use . 6. Device as mentioned under claim (1) and (2), wherein the hinged parts necessary for folding them are placed on the long sides of the device and wherein said hinged parts assume a horizontal position when the device is in the position of use. 1036838