The invention relates to a scaffold in accordance with the preamble of claim 1.
Such scaffolds are frequently used, for example in the building sector, to enable work to be carried out, for example on a building under construction, at a certain height above the ground.
Such scaffolds preferably include vertical supports consisting of sections which can be individually plugged together and on which perforated roses are arranged at intervals of, for example, 0.5 m at which horizontal carriers and diagonal supports can be secured which connect adjacent vertical supports to one another so that a stable three dimensional scaffold is provided.
For the erection of such scaffolds, scaffold decks shaped like planks are inserted between oppositely disposed horizontal carriers which generally extend parallel to one another. The scaffold decks engage by means of hooks on the two associated horizontal carriers and are thereby fixed in a horizontal position, but are removable upwardly. Generally, a plurality of such scaffold decks are arranged next to one another on two opposite horizontal carriers. From the platform formed in this manner, scaffold decks can then be attached to adjacent horizontal carriers, or also to above lying horizontal carriers.
A problem with such scaffolds consists of the fact that for the insertion of a first scaffold deck between two oppositely disposed horizontal carriers which are parallel to one another, the scaffold deck can only be taken up at one end by the operator standing on the already completed platform, whereby the lifting of the other end is made very much more difficult, if not actually impossible. For this reason, planks are frequently used as aids which are longer than the spacing between the two oppositely disposed horizontal carriers, whereby the plank lifted at one end by the operator can be brought onto the remote horizontal carrier albeit only with substantial effort.
The aim of the invention consists of providing a scaffold of the kind initially mentioned in which the insertion of a first scaffold deck into an opening between horizontal carriers forming a square or a rectangle starting from an already completed platform is made substantially easier.
The features of the characterizing part of claim 1 are provided to satisfy this object.
The idea of the invention can therefore be seen in the fact that the end of the scaffold deck remote from the holding end is supported by placing the guide stop onto the horizontal carrier extending parallel to the scaffold deck and can be displaced on this up to the opposite horizontal carrier as if on a rail. By lowering the holding end and tilting about the longitudinal axis, the hook-like structures generally provided at the other end of the scaffold deck can then be pushed over the relevant horizontal carrier and then be brought into the final position of use by tilting back and fully lowering the scaffold deck.
In this connection, the guide stops must be arranged such that the securing hooks can be raised over the associated horizontal carrier by tilting the scaffold deck about its longitudinal axis and can be placed onto the horizontal carrier by tilting it back into the substantially horizontal position.
The embodiment in accordance with claim 2 has the advantage that the installation of the scaffold decks in accordance with the invention is possible irrespective of whether the horizontal carrier serving as the rail is disposed to the left or the right of the scaffold deck. A support by means of a guide stop can thus take place on the desired side thereof by turning the scaffold deck round into the appropriate direction.
So that the guide stops of the adjacent scaffold decks do not abut one another at the side in the event that two scaffold decks lie next to one another at their sides carrying the guide stops, the offsetting thereof in accordance with claim 3 is of advantage.
Advantageous practical embodiments of the guide stop can be found in claims 4 to 6.
By arranging an eyelet in accordance with claims 7, 8 on the side of the scaffold decks remote from the guide stop and at the same spacing from the end of the scaffold deck as the associated guide stop, it is possible to fix adjacent scaffold decks at a small distance to one another defined by the eyelet and the guide stops engaging therein. The guide stop fulfils a dual function in this embodiment.
The invention can be used with horizontal carriers made either of a single tube member in accordance with claims 9 to 11 or of two individual carriers, for example in C shape in accordance with claims 12 to 15, which extend closely spaced parallel to one another, with care having to be taken that the hooks provided at opposite ends of the horizontal carriers for the fixing of the scaffold decks are offset in a lateral direction relative to one another such that they do not collide with one another when two scaffold decks are arranged with their end faces adjoining one another.
The invention is used with particular advantage with vertical supports in accordance with claim 16. Hook and wedge arrangements for securing the horizontal carriers to the perforated roses are known from EP 0876541 A2.
Preferred embodiments of the plates and of the scaffold can be found in claims 17, 18 and 19.
Protection is also sought for a scaffold deck in accordance with claim 20.
The preferred method for the attachment of a scaffold deck in accordance with the invention is defined in claim 21.
The invention will be described in the following by way of example with reference to the drawing, in which are shown:
In accordance with
The vertical spacing of the perforated roses 28 can, for example, amount to 0.5 to 1 m, while the vertical support sections 11″ can, for example, be 1 to 2 m long.
Some of the adjacent vertical supports 11 are also connected to diagonal supports 35 engaging at their ends at perforated roses 28 to stabilize the scaffold.
For the further erection of the scaffold shown in only partly erected manner in
As can be seen in a particularly illustrative manner from
If, with such a scaffold, a platform 30 composed of one or more scaffold decks 14 is formed at a certain height, it is a problem to also likewise insert scaffold decks 14 between two respective horizontal carriers 12 extending parallel to one another in the adjacent open square 31, because the person handling the scaffold decks 14 is standing on the platform 30 and can only grip the scaffold deck 14 to be inserted first at its one end 17 (
To now facilitate the insertion of a scaffold deck 14 into an open square 31 of horizontal carriers 12, 13, in accordance with
In accordance with
Subsequently, the end 17 of the scaffold deck 14 in an inclined position is then lowered in the direction of the arrow W, with the guide stop 15 provided in the region of the end 17 also being laid over the horizontal carrier 13. Subsequently, the scaffold deck 14 is then tilted so far about the contact points of the guide stops 15 in the sense of the arrow P in
The adjacent scaffold decks 14 can then be inserted without problem from the scaffold deck 14 now fixed inside the upper square 31 in
It can be seen from
Respective angled plates 23 are attached to the respective side of the same scaffold deck 14 remote from a guide stop 15 and comprise a limb 24 secured to the side of the scaffold deck 14 and a horizontal limb 21 in which an opening 22 is provided which is formed complementary to the projection 18 at the oppositely disposed guide stop 15 such that—as can in particular be recognized from FIG. 4—the downwardly extending projection 18 of the guide stop 15 of an adjacent scaffold deck 14 can be inserted from above into the opening 22 to ensure the low spacing D in this manner.
It can be recognized at the right in
Since only one horizontal carrier 12 each is available for the attachment of the ends 16, 17 of adjacent two scaffold decks 14 at these ends, the ends 16, 17 of the scaffold decks 14 in accordance with
For this purpose, the hooks 26 are offset with respect to one another relative to the axis of symmetry 25 (
In accordance with
The offset of the hooks 26 at the ends 16 or 17 relative to the longitudinal axis of symmetry 25 of the scaffold decks 14 (
To the right of the central lower horizontal carriers 12 shown in
In accordance with
In accordance with
Since the support plates 36 engage between the individual carriers 12a, 12b in the embodiment in accordance with
Number | Date | Country | Kind |
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101 08 784 | Feb 2001 | DE | national |
Number | Name | Date | Kind |
---|---|---|---|
4802553 | Waters et al. | Feb 1989 | A |
4969777 | Eickhoff | Nov 1990 | A |
6027276 | Schworer | Feb 2000 | A |
6032427 | Randjelovic | Mar 2000 | A |
Number | Date | Country |
---|---|---|
37 05 566 | Sep 1988 | DE |
40 27 754 | Mar 1992 | DE |
WO 9727372 | Jul 1997 | WO |
Number | Date | Country | |
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20020166726 A1 | Nov 2002 | US |