Method for the prior assembly of an extension scaffolding beam and at least one extension scaffolding floor supported thereon

Abstract

The invention relates to a method for the prior assembly of an extension scaffolding beam (22) and at least one extension scaffolding floor (20.2), supported thereon, in order to enlarge a starting working area (19) of a starting scaffolding platform (15) having starting scaffolding floors (20.1), said starting scaffolding platform comprising a platform scaffolding beam (16.1, 16.2) which extends along a platform scaffolding beam longitudinal axis (18.1, 18.2) of the platform scaffolding beam (16.1, 16.2) To this end, at least one temporarily attached auxiliary assembly device, at least one temporarily attached auxiliary scaffolding beam (40.1, 40.2) and at least one fastening and guide adapter (30.1, 30.2) are used, the latter being fastened to the extension scaffolding beam (22) and being transferred in a displacement direction (42), relative to the at least one auxiliary scaffolding beam (40.1, 40.2), from an intermediate assembly position, in which it rests on a support surface of the at least one temporarily attached auxiliary assembly device, into an extension final assembly position (47) with the aid of the at least one extension scaffolding floor (20.2), and, in the course thereof or subsequently, also being attached to the platform scaffolding beam (16.1), such that an extension scaffolding platform with an extension scaffolding platform working area that is enlarged, compared with the starting working area, by an extension working area formed by the extension scaffolding floor, is formed.

Description

[0001] Method for the preliminary assembly of an extension scaffold beam and at least one extension scaffold deck supported thereon

[0002] The invention relates to a method for the advance assembly of a, preferably elongated, extension scaffold support and at least one extension scaffold floor supported thereon or thereon for enlarging a, preferably horizontal, initial work surface of an initial scaffold platform, which comprises a platform scaffold support which extends along a platform scaffold support longitudinal axis of the platform scaffold support, preferably on or on which at least one scaffold floor is attached.

[0003] Scaffold beams are generally long and unwieldy components and are primarily used to support heavy loads or create large work surfaces, for example, as suspended scaffolds for bridge renovations or as floor-standing scaffolds. During bridge renovations, the scaffolding platform hangs beneath the bridge. With a standing scaffolding platform, the scaffolding platform is connected to a supporting scaffold supported on the ground and, depending on its length, requires multiple supports. Scaffold beams can be, for example, lattice girders made of steel or aluminum, extruded aluminum profiles, steel beams, or similar.

[0004] For the assembly of scaffolding, advantageous scaffold beams are known, for example, from DE 10 2018 103 897 A and DE 10 2018 103 898 A of the applicant. These are preferably U-profile aluminum beams. These are known in practice under the name "FLEXBEAM" or "FlexBeam" of the applicant. These scaffold beams enable rapid assembly and optimal use of materials. The rapid assembly is achieved, among other things, by the elimination of compression chord stiffeners, such as those used in steel lattice girders, and by the possibility of suspending U-system decks into the U-profile of the beam and by an easily installed anti-lift device.

[0005] Technological background and state of the art

[0006] As a rule, the scaffolding girders of a scaffolding platform mentioned above are moved into position using a crane or similar for assembly or disassembly. However, this is not always possible and is also expensive. Alternatively, the scaffolding girders are then moved into position by hand and with other suitable tools / scaffolding components, in which case fall protection in the form of personal protective equipment is always required. In practice, it has also become known that many additional holes have to be drilled into the concrete ceiling or concrete bridge to assemble such scaffolding girders for ceiling scaffolds, bridge caps, or bridge soffit scaffolds. Drilling such holes in the concrete is very complex and time-consuming, as there are usually many reinforcing bars in the concrete. In addition, separate chain hoists are required for assembly, which require an external power source.The structures that can be realized in this way can be shaky and therefore unsafe, which can lead to a significant safety risk.

[0007] Summary of the invention

[0008] The invention is based on the object of providing a method of the type mentioned above, which enables simple and safe advance assembly of scaffold supports and extension scaffold decks for an extended scaffold platform. This object is achieved by the features of claim 1. Accordingly, the invention relates to a method for the advance assembly of a, preferably elongated, extension scaffold support and at least one extension scaffold deck supported thereon or thereon for enlarging a, preferably horizontal, initial working surface of an initial scaffold platform, which comprises a platform scaffold support extending along a platform scaffold support longitudinal axis of the platform scaffold support, preferably on or to which a scaffold deck is attached or on or to which several scaffold decks are attached, wherein the invention provides the following assembly steps: a) Attaching,preferably suspending an auxiliary assembly device on the platform scaffolding support for temporarily depositing the extension scaffolding support in an intermediate assembly position on the auxiliary assembly device; b) placing the extension scaffolding support on a support surface of the auxiliary assembly device, preferably extending outwards from the platform scaffolding support transversely or perpendicularly to the platform scaffolding support longitudinal axis, in the intermediate assembly position at a first transverse distance from the platform scaffolding support; c) fastening a fastening and guide adapter to the extension scaffolding support resting on the support surface of the auxiliary assembly device, wherein the fastening and guide adapter has a preferably upwardly open adapter recess for inserting a preferably elongated,Auxiliary scaffolding support and for inserting and guiding the auxiliary scaffolding support in a displacement direction transversely or perpendicularly to the platform scaffolding support longitudinal axis of the platform scaffolding support; d) inserting the auxiliary scaffolding support for, preferably indirectly, supporting the extension scaffolding support and for, preferably indirectly, displacing the extension scaffolding support relative to the platform scaffolding support in the displacement direction, preferably vertically from top to bottom, into the, preferably upwardly open, adapter recess of the fastening and guiding adapter and inserting the auxiliary scaffolding support in the displacement direction through the adapter recess of the fastening and guiding adapter, which is attached to the extension scaffolding support resting on the support surface of the auxiliary assembly device; e) before assembly step d) or subsequently, fastening the auxiliary scaffolding support with the aid of a fastening adapter,for example a cross connector, on the initial scaffolding platform or on the platform scaffolding support, preferably in such a way that the auxiliary scaffolding support extending in a direction parallel to the direction of displacement projects in the direction of displacement over the extension scaffolding support resting on the support surface of the auxiliary assembly device, in particular outwards, preferably sufficiently; f) if not already done or present, attaching a, in particular upper, carrying and displacement device to the fastening and guiding adapter, for carrying the extension scaffolding support and for displacing the extension scaffolding support relative to the auxiliary scaffolding support in the direction of displacement, so that the auxiliary scaffolding support can be displaced by the carrying and displacement device, in particular upwards,limited adapter recess of the fastening and guide adapter extends through; g) attaching at least one displacement aid for displacing the extension scaffold support, preferably from the starting scaffold platform, to the extension scaffold support, so that the extension scaffold support can be displaced in the displacement direction with the aid of the at least one displacement aid, preferably from the starting scaffold platform, from the first intermediate assembly position, in which the extension scaffold support rests on the support surface of the auxiliary assembly device, into an extension assembly end position, in which the extension scaffold support is arranged at a third transverse distance from the platform scaffold support, which is greater than the first transverse distance; h) displacing the extension scaffold support with the aid of the at least one displacement aid, preferably from the starting scaffold platform, from the intermediate assembly position,in which the extension scaffold beam rests on the support surface of the auxiliary assembly device, in the displacement direction up to the extension assembly end position, preferably in which the extension scaffold beam is or is supported, in particular indirectly, by the auxiliary scaffold beam, preferably in which the extension scaffold beam hangs, in particular indirectly, from the auxiliary scaffold beam; i) wherein the at least one displacement aid is either at least one extension scaffold deck, which, after the extension scaffold beam has been moved into the extension assembly end position, is also attached to or on the platform scaffold beam in such a way that it forms an extension work surface, so that an extension scaffold platform is formed with an extension scaffold platform work surface that is enlarged by the extension work surface compared to the initial work surface, or an aid,in particular, an auxiliary body which is removed from the extension scaffolding support after the extension scaffolding support has been moved into the extension assembly end position, wherein or upon which at least one extension scaffolding deck is attached to the platform scaffolding support and to or on the extension scaffolding support in such a way that it forms an extension work surface, so that an extension scaffolding platform is formed with an extension scaffolding platform work surface that is enlarged by the extension work surface compared to the initial work surface. If the at least one displacement aid is at least one further scaffolding deck which, after the extension scaffolding support has been moved into the extension assembly end position, is also attached to or on the platform scaffolding support in such a way that it forms an extension work surface,so that an extension scaffold platform is formed with an extension scaffold platform working surface that is larger than the original working surface, no additional shifting aid is required, the exact field dimension is immediately available, and any subsequent measuring or alignment that would otherwise be required can be omitted. Preferably, the shifting according to assembly step h) is carried out with the aid of at least two shifting aids, in particular at least two extension scaffold decks, which, after the extension scaffold beam has been shifted into the extension assembly end position, are also attached to or on the platform scaffold beam in such a way that they form an extension working surface.This creates an extension scaffold platform with a working surface that is larger than the original working surface. This further improves assembly safety.

[0009] According to one embodiment, a support device, preferably a support body, is used as the auxiliary assembly device. The support body has a support plate with a support surface that extends transversely or vertically from a support body of the support device, preferably formed with a support plate. The support body has at least one suspension aid, for example a suspension claw, for suspending the auxiliary assembly device from the platform scaffolding support at a support body end extending away from the support surface. This enables a further improvement in the sense of the inventive task.

[0010] According to one variant of the method, it can be provided that the extension scaffold support, when or as long as it rests on the support surface of the auxiliary assembly device or before it is pushed down from the support surface of the auxiliary assembly device in the direction of displacement, is or is secured against falling from the support surface by means of a releasable securing means which can be transferred from a released position to a secured position and vice versa, by means of which the extension scaffold support and the auxiliary assembly device are or are connected in a form-fitting and / or force-fitting manner. This can significantly further improve assembly safety. It goes without saying that if such a temporary securing means is attached, it is or is removed before the extension scaffold support is moved or pushed down in the direction of displacement.

[0011] It can be provided that a double connection head (wedge head coupling, double) is used as the securing means, which has a first connection head which can be or is releasably fastened to a projection, for example to a rosette part, by means of a first connection wedge, which has at least one first opening for the insertion of the first connection wedge, wherein the projection is firmly connected to the assembly auxiliary device, and which has a second connection head which extends away from the first connection head, preferably in an opposite direction, and which can be or is releasably fastened to a first fastening body by means of a second connection wedge, which has a second opening for the insertion of the second connection wedge, wherein the first fastening body is fastened to the first connection head by means of at least one fastening means, for example by means of one or more hexagon screws.is detachably attachable or is detachably attached to the extension scaffold support. This enables simple and at the same time effective securing, preferably with at least partial use of existing securing and / or fastening means, which results in corresponding cost savings. According to a preferred variant, it can be provided that a fastening and guide body is used as the fastening and guide adapter, which has a second fastening body and a guide body, wherein the second fastening body has at least one fastening adapter plate or at least two adapter fastening plates for detachably attaching the fastening and guide adapter to the extension scaffold support.and wherein the guide body extending away from the second fastening body has at least two guide plates for guiding the fastening and guiding adapter along the extension scaffold beam inserted through the adapter recess, which are arranged parallel to one another at a second distance, preferably and each arranged at an angle of 90 degrees to the adapter fastening plate or to the adapter fastening plates. As a result, the extension scaffold beam can be mounted parallel to the platform scaffold beam and, at the same time, the extension scaffold beam can be displaced in the displacement direction perpendicular to the platform scaffold beam longitudinal axis along the auxiliary scaffold beam, whose auxiliary scaffold beam longitudinal axis is arranged perpendicular to both the platform scaffold beam longitudinal axis and perpendicular to the extension scaffold beam longitudinal axis. This enables a particularly simple,fast and safe advance assembly.,

[0012] According to one variant, the support and displacement device can be provided with one or more rollers, preferably arranged one behind the other or on an imaginary straight line and rotatable about parallel axes of rotation, or with one or more plates, which are supported on the auxiliary scaffold beam so that they can be moved or displaced relative to the auxiliary scaffold beam in the displacement direction. This allows for simple and easy displacement of the extension scaffold beam in the displacement direction along the auxiliary scaffold beam.

[0013] According to an advantageous variant, it can be provided that a third fastening body 59 is used as the fastening adapter 35.1, 35.2, which has at least one first adapter plate 81 for fastening the fastening adapter 35.1, 35.2 to the platform scaffold support 16.1 or at least two first adapter plates 81 for fastening the fastening adapter 35.1, 35.2 to the platform scaffold support 16.1, which are arranged parallel to one another at a first plate spacing, and which has at least one second adapter plate 82 for fastening the auxiliary scaffold support 40.1, 40.2 to the fastening adapter 35.1, 35.2 or at least two second adapter plates 82 for fastening the auxiliary scaffold support 40.1, 40.2 to the fastening adapter 35.1, 35.2, which are arranged in a second plate spacing are arranged parallel to each other, preferably and which, if necessary,each arranged at an angle of 90 degrees to the first adapter plate or plates. Such a fastening adapter is known in practice under the name "cross connector" of the applicant.

[0014] According to a preferred method variant, it can be provided that following assembly step f), the auxiliary scaffold support is first attached or placed in a pre-assembly position on or onto the fastening adapter so as to be displaceable relative to the latter in the direction of displacement, and only then is it displaced outwards in the direction of displacement relative to the fastening adapter, specifically into a final assembly position in which a free auxiliary scaffold support end of the auxiliary scaffold support extending in a direction parallel to the direction of displacement projects beyond the platform scaffold support in the direction of displacement and has a fourth transverse distance from the platform scaffold support which is greater than the third transverse distance. This enables particularly simple and, at the same time, safer assembly.

[0015] In this case, it can be provided that, in the pre-assembly position, a handrail is attached to the auxiliary scaffold beam using a railing adapter. This handrail extends along or parallel to the auxiliary scaffold beam, so that when the auxiliary scaffold beam is moved in the direction of travel until the final assembly position, the handrail is moved along with the auxiliary scaffold beam. This can further improve assembly safety.

[0016] According to a preferred variant, the displacement aid can be attached to the extension scaffold beam and to the platform scaffold beam in such a way that, after the extension scaffold beam has been moved into the extension assembly end position with the aid of the displacement aid and the subsequent attachment of the displacement aid to the platform scaffold beam, the extension scaffold beam is secured with the aid of the displacement aid against displacement in a direction parallel to the displacement direction relative to the platform scaffold beam. This further improves assembly reliability.

[0017] A simple, quick and safe disassembly can be carried out in reverse order.

[0018] It is understood that the above-mentioned measures can be combined with each other as required within the scope of feasibility.

[0019] An advantageous embodiment of the invention is described in more detail below with reference to the figures.

[0020] Short description of the characters

[0021] They show:

[0022] Fig. 1 shows a starting scaffolding platform in a perspective view after carrying out a first assembly step, in which two essentially identical assembly auxiliary devices with support surfaces for temporarily depositing an extension scaffolding support (not shown here) were attached at a first longitudinal distance from one another;

[0023] Fig. 2 shows an assembly situation after carrying out a further assembly step, in which an extension scaffold beam was placed on the support surfaces of the two auxiliary assembly devices in a temporary intermediate assembly position;

[0024] Fig. 3 shows an assembly situation after carrying out a further assembly step in which two identical fastening and guide adapters were attached to the extension scaffold support at a second longitudinal distance from each other;

[0025] Fig. 4 shows an assembly situation after carrying out further assembly steps, in which as a result each auxiliary scaffold support was fastened to the two platform scaffold supports of the initial scaffold platform by means of two identical fastening adapters in such a way that it extends through a recess of the respective fastening adapter perpendicular to the respective platform scaffold support longitudinal axis of the respective platform scaffold support and at the same time extends outwards through an adapter recess of the respectively assigned fastening and guide adapter;

[0026] Fig. 5 shows an assembly situation after further assembly steps have been carried out, in which a support and displacement device comprising two rotatable rollers has been attached to the respective upper end of the respective fastening and guide adapter, wherein the extension scaffold support extends through the adapter recess of the respective fastening and guide adapter, which is delimited at the top by the respective support and displacement device; Fig. 5.1 shows an enlarged perspective view of the section marked with a rectangle in Figure 5;

[0027] Fig. 6 shows an assembly situation after carrying out further assembly steps, in which the extension scaffold beam has been moved with the aid of displacement aids in the form of a supplementary scaffold deck from the initial scaffold platform from the intermediate assembly position, in which it rests on the respective support surface of the respective assembly auxiliary device, in a displacement direction perpendicular to the platform scaffold beam longitudinal axis of the front, first platform scaffold beam to an extension assembly end position, in which the extension scaffold beam hangs freely on the respective auxiliary scaffold beam via the respective fastening and guide adapter provided with the respective carrying and displacement device, and in which the extension scaffold beam is supported by the two supplementary scaffold decks,which have been suspended with their suspension claws from both the extension scaffold beam and the first platform scaffold beam (U-profile beam), are secured or fixed against displacement in a direction parallel to the direction of displacement;,

[0028] Fig. 7 shows an assembly situation after further assembly steps have been carried out, in which the remaining free space between the first platform scaffolding support and the extension scaffolding support as well as between the two auxiliary scaffolding supports was covered with additional scaffolding decks, so that an extension work surface was created there, by which the initial work surface was extended to form an extension scaffolding platform work surface;

[0029] Fig. 8 is a perspective view of one of the two auxiliary assembly devices; Fig. 9 is a cross-sectional view of the extension scaffold support resting on a support surface of an auxiliary assembly device, wherein the auxiliary assembly device is suspended from a platform scaffold support, and wherein a securing means is provided, which is releasably fastened on the one hand by means of a first fastening means to the auxiliary assembly device and on the other hand by means of a second fastening means to the extension scaffold support, in order to prevent the extension scaffold support from falling off the support surface of the auxiliary assembly device;

[0030] Fig. 10 is a perspective view of a fastening and guiding adapter of the two fastening and guiding adapters provided with a carrying and sliding device;

[0031] Fig. 10.1 shows the fastening and guiding adapter equipped with the support and sliding device (rollers) in a side view, whereby an auxiliary scaffold support is inserted through the adapter recess of the fastening and guiding adapter.

[0032] Detailed description of the characters

[0033] Figure 1 shows a perspective view of an initial scaffolding platform 15. This comprises a first, here front, platform scaffold support 16.1 and a second, here rear, platform scaffold support 16.2, which are arranged at a second transverse distance 24 from one another. The platform scaffold supports 16.1, 16.2 can be of identical design. Preferably, the platform scaffold supports 16.1, 16.2 have at least one cross-section 28.1 that is essentially the same and remains essentially the same over their respective platform scaffold support length (see Figure 9). The platform scaffold supports 16.1, 16.2 each extend along a platform scaffold support longitudinal axis 18.1, 18.2 essentially parallel to one another. The initial scaffolding platform 15 also comprises a plurality of initial scaffold floors 20.1. The initial scaffolding floors 20.1 extend between the two platform scaffolding beams 16.1, 16.2, preferably substantially parallel to each other.

[0034] To carry out or apply the assembly method according to the invention, starting from the initial scaffolding platform 15 shown in Figure 1, for example, on the front, first platform scaffolding support 16.1 in Figure 1, preferably two separate auxiliary assembly devices 21; 21.1, 21.2 are attached for depositing an extension scaffolding support 22 at a first longitudinal distance 23 from one another. Preferably, the two auxiliary assembly devices 21; 21.1, 21.2 are designed identically (Figure 1).

[0035] Subsequently, the extension scaffold beam 22 is placed on the support surfaces 26.1, 26.2 of the two auxiliary assembly devices 21; 21.1, 21.2, which are horizontal in the installation position shown, in the temporary intermediate assembly position 27 at a first transverse distance from the platform scaffold beam 16.1. Preferably, the extension scaffold beam 22 is designed substantially identically to at least one of the platform scaffold beams 16.1, 16.2, or the extension scaffold beam 22 has, at least over its extension scaffold beam length, a substantially identical cross-section 28.2 to at least one of the platform scaffold beams 16.1, 16.2 (see Figures 2 and 10 - cross-section 28.1).

[0036] In a subsequent assembly step, preferably two, in particular essentially identically designed, preferably essentially identical, fastening and guide adapters 30; 30.1, 30.2 are fastened to the extension scaffold support 22 at a second longitudinal distance 31 from one another (Figure 3).

[0037] Subsequently, further assembly steps are carried out, after which each auxiliary scaffold support 40.1, 40.2 is preferably fastened to the two platform scaffold supports 16.1, 16.2 of the already existing initial scaffold platform 15 by means of at least two, in particular essentially identical, fastening adapters 35.1, 35.2 in such a way that it extends through an adapter opening 36.1, 36.2 of the respective fastening adapter 35.1, 35.2 perpendicular to the respective platform scaffold support longitudinal axis

[0038] 18.1, 18.2 of the respective platform scaffold support 16.1, 16.2 and that it also extends through an adapter recess 37.1, 37.2 of the respectively assigned fastening and guide adapter 30; 31.1, 30.2 perpendicular to the platform scaffold support longitudinal axis 18.1 of the first platform scaffold support 16.1, wherein the extension scaffold support 22 still rests on the support surfaces 26; 26.1, 26.2 of the auxiliary assembly devices 21;

[0039] 21 .1 . 21 .2 rests (Figure 4).

[0040] For this purpose, four, in particular essentially identically designed or essentially identical, fastening adapters

[0041] 35.1 , 35.2 for fastening auxiliary scaffold beams 40.1 , 40.2 to the first platform scaffold beam 16.1 and also to the second platform scaffold beam

[0042] 16.2. The fastening of the four fastening adapters 35.1, 35.2 can be carried out in such a way that two fastening adapters 35.1, 35.2 of the four fastening adapters 35.1, 35.2 are fastened to the first platform scaffold support 16.1 at a third longitudinal distance 38 from one another and that two other fastening adapters 35.1, 35.2 of the four fastening adapters 35.1, 35.2 are also fastened to the second platform scaffold support 16.2 at the third longitudinal distance 38, in such a way that the fastening adapter 35.1 which is fastened to the platform scaffold support 16.1 has a second transverse distance 39 from the associated fastening adapter 35.1 which is fastened to the platform scaffold support 16.2, and wherein the fastening adapter 35.2 which is fastened to the platform scaffold support 16.1 is attached, from the associated fastening adapter 35.2 which is attached to the platform scaffold support 16.2, also has the second transverse distance 39 (see Figure 4).

[0043] If this has not already been done or is present, two auxiliary scaffold supports 40.1, 40.2, preferably of essentially the same design or substantially identical, preferably with a substantially identical cross-section 28.3, can then be transferred to the starting scaffold platform 15. Each auxiliary scaffold support 40.1, 40.2 can be of essentially the same design or can at least have a substantially identical cross-section 28.3 over its auxiliary scaffold support length as the respective platform scaffold support 16.1, 16.2 (cross-section 28.1) or the extension scaffold support 22 (cross-section 28.2).

[0044] Each auxiliary scaffold beam 40.1 , 40.2 is now inserted, preferably vertically from top to bottom, into the adapter opening, which is preferably open at the top

[0045] 36.1 , 36.2 of the respectively assigned fastening adapter 35.1 , 35.2 and also, preferably likewise vertically from top to bottom, into the preferably upwardly open adapter recess 37; 37.1 , 37.2 of the assigned fastening and guide adapter 30; 30.1 , 30.2.

[0046] If not already done, each auxiliary scaffold beam 40.1 ,

[0047] 40.2 in a displacement direction 42 perpendicular to the platform scaffold support longitudinal axis 18.1 of the first platform scaffold support 16.1 through the adapter recess 37; 37.1, 37.2 of the respectively assigned fastening and guide adapter 30; 30.1, 30.2 and through the adapter opening 36.1, 36.2 of the respectively assigned fastening adapter 35.1, 35.2 by a specific or desired displacement path sufficiently far (fourth transverse distance 83 - see Figure 5) in order to be able to achieve a desired extension of the initial work surface 19 by means of the extension scaffold support 22 and by means of the supplementary scaffold decks 20.2 then attached thereto.

[0048] Each fastening adapter 35.1, 35.2 can be a connecting body, which has become known in practice under the name "cross connector" by the applicant. This enables a cross-wise connection or fastening of two scaffolding beams, in particular of two of the aluminum U-profile scaffolding beams, which have become known in practice under the name "FLEXBEAM" or "FlexBeam" by the applicant. The connection is made in such a way that the two scaffolding beams, i.e. here the respective auxiliary scaffolding beam 40.1, 40.2 and the first platform scaffolding beam 16.1, can be firmly, preferably rigidly, connected to one another with the aid of fastening means not shown, or can be fastened to one another with the aid of fastening means not shown, preferably rigidly.

[0049] If this has not already been done or is present, a support and displacement device 43.1, 43.2, preferably comprising at least two rollers 44.1, 44.2 each rotatable about parallel axes of rotation 70.1, 70.2 and arranged one behind the other on an imaginary straight line, can then be fastened to the respective upper end of the respective fastening and guide adapter 30; 30.1, 30.2, so that the extension scaffold support 22 extends through the respective adapter recess 37; 37.1, 37.2 of the respective fastening and guide adapter 30; 30.1, 30.2, which is delimited at the top by the respective support and displacement device (43.1, 43.2) (Figures 5 and 5.1).

[0050] Following this, the extension scaffold support 22 is moved from the starting scaffold platform 15 with the aid of two displacement aids 45.1, 45.2, which in the exemplary embodiment shown are two, preferably essentially identically designed, in particular equally long, preferably essentially identical, extension scaffold floors 20.2, from the intermediate assembly position 27, in which the extension scaffold support 22 rests on the respective support surface 26; 26.1, 26.2 of the respective assembly aid device 21; 21.1, 21.2, in the displacement direction 42 into the extension assembly end position 47, in which the extension scaffold support 22 is provided with the respective support and displacement device 43.1, 43.2 via the fastening and guide adapter 30; 30.1, 30.2 hang freely from the respective auxiliary scaffold beams 40.1, 40.2. For this purpose, the two extension scaffold decks 20.2 are first suspended in or on a vertical support leg 49.1 of the U-profile 50.1 of the extension scaffold beam 22 by means of their suspension claws 48 assigned to the extension scaffold beam 22, and then the extension scaffold beam 22 is moved in the displacement direction 42 with the aid of these two extension scaffold decks 20.2 into the extension assembly end position 47. Subsequently or simultaneously, the two extension scaffold decks 20.2 are also suspended in or on a vertical support leg 49.2 of the U-profile 50.2 of the first platform scaffold beam 16.1 with their suspension claws 48 assigned to the first platform scaffold beam 16.1. Then, the extension scaffold support 22 is secured or fixed by the two extension scaffold floors 20.2 against displacement in a first direction 51 parallel to the displacement direction 42 (Figure 6).

[0051] Finally, a remaining free space between the first platform scaffold support 16.1 and the extension scaffold support 22 moved into the extension assembly end position 47 as well as between the two assembled auxiliary scaffold supports 40.1, 40.2 is occupied with further supplementary scaffold decks 20.2, so that an extension work surface 53 is then created there, by which the initial work surface 19 has been extended by the extension work surface 53 to form an extension scaffold platform work surface 55 (Figure 7).

[0052] Before this assembly step, in particular immediately before this assembly step, the two assembly auxiliary devices 21.1, 21.2 are removed from the first platform scaffold support 16.1 or unhooked from the first platform scaffold support 16.1 in order to fill the entire free space 52 between the first platform scaffold support 16.1 and the extension scaffold support 22 moved into the extension assembly end position 47 as well as between the two assembled auxiliary scaffold supports 40.1, 40.2 with further extension scaffold decks

[0053] 20.2, as shown in Figure 7.

[0054] Once the extension scaffold platform 56 has been completed in this way, it can be supported downwards using support means (not shown) and / or suspended using suspension means (not shown). Subsequently, the auxiliary scaffold supports 40.1, 40.2 as well as the fastening and guide adapters 30.1, 30.2 and the fastening adapters 35.1, 35.2 can be dismantled. These components can then advantageously be used for a continued preliminary assembly according to the invention in order to extend the extension scaffold platform 56 accordingly in the direction of displacement 42.

[0055] Figure 8 shows a perspective view of one of the two auxiliary assembly devices 21.1, 21.2. This auxiliary assembly device 21, or each auxiliary assembly device 21.1, 21.2, has a support plate 60, which, in the installed position shown in Figures 1 to 5.1, has a horizontal support surface 26 for temporarily supporting the extension scaffold support 22. Each support plate 60, at one of its mutually facing support plate ends, merges into a support plate 61, which extends transversely or perpendicularly from the support plate 60. Each support plate 61 has, at a support plate end pointing away from the support surface 26 of the associated support plate 60, two suspension aids, preferably in the form of suspension claws 62, by means of which the respective assembly aid device 21; 21.1, 21.2 can be suspended from a platform scaffold support 16.1 (Figure 1).

[0056] Figure 9 shows a cross-section of an arrangement 73 comprising the first platform scaffold support 16.1, the extension scaffold support 22, the auxiliary assembly device 21 suspended from the first platform scaffold support 16.1, and a securing means 74. The securing means 74 is, on the one hand, releasably fastened to the auxiliary assembly device 21 by means of a first fastening means and, on the other hand, is releasably fastened to the extension scaffold support 22 by means of a second fastening means in order to temporarily or for a desired period of time prevent the extension scaffold support 22 from falling off the support surface 26 of the auxiliary assembly device 21. The securing means 74 shown is a double connection wedge head 75, which is known in practice under the designation “wedge head coupling, double” by the applicant. The double connection wedge head 75 has a first connection wedge head 76.1, which is releasably fastened by means of a first connecting wedge 77.1 to a projection 78, for example the rosette part shown, which has at least one first opening for the insertion of the first connecting wedge 77.1. The projection 78 is firmly connected, preferably by welding, to the support plate 61 of the auxiliary assembly device 21. The double connecting wedge head 75 has a second connecting head 76.2, which extends away from the first connecting wedge head 76.1 in an opposite direction. The second connecting wedge head 76.2 is releasably fastened by means of a second connecting wedge 77.2 to a fastening body 79, which has a second opening for the insertion of the second connecting wedge 77.2. The fastening body 79 is releasably fastened to the extension scaffold support 22 by means of at least one fastening means, preferably by means of hexagon screws 80.

[0057] Figures 10 and 10.1 each show a fastening and guiding adapter 30 of the two fastening and guiding adapters 30.1, 30.2, each provided with a supporting and displacing device 43 of the two supporting and displacing devices 43.1, 43.2. The fastening and guiding adapter 30 has a second fastening body 64 for fastening the fastening and guiding adapter 30 to the extension scaffold support 22 and a guide body 65 extending away from the first fastening body 64 for guiding the fastening and guiding adapter 30 during its displacement along the associated auxiliary scaffold support 40.1, 40.2 in the displacement direction 42. The second fastening body 64 has two essentially identically designed fastening adapter plates 66.1, 66.2 for releasably fastening the fastening and guide adapter 30 to the extension scaffold support 22 by means of fastening means not shown in this figure.The two fastening adapter plates 66.1, 66.2 are arranged parallel to one another at a first distance 67. The guide body 65 has two essentially identically designed guide plates 68.1, 68.2 for guiding the fastening and guide adapter 30 during its displacement along the associated auxiliary scaffolding support 40.1, 40.2 in the displacement direction 42. The two guide plates 68.1, 68.2 are arranged parallel to one another at a second distance 69. The guide plates 68.1, 68.2 are arranged parallel to an imaginary guide plate plane which is arranged at an angle of 90 degrees to an imaginary fastening plate plane which is arranged parallel to the fastening adapter plates 66.1, 66.2. Each carrying and displacement device 43; 43.1, 43.2 comprises two essentially identically designed rollers 44.1, 44.2, each of which is freely rotatable about a rotational axis 70.1, 70.2. The rotational axes 70.1, 70.2 of the two rollers 44.1, 44.2 are formed parallel to one another. The two rollers 44.1, 44.2 are fastened one behind the other in an imaginary straight line at the same height at the upper end of the two guide plates 68.1, 68.2, so that the fastening and guide adapter 30 provided with the two rollers 44.1, 44.2 can be supported via its two rollers 44.1, 44.2 on preferably essentially flat surfaces, preferably of opposing and mutually extending groove-engaging webs 86.1, 86.2 of the respectively associated auxiliary scaffolding support 40.1, 40.2, preferably in a freely suspended manner, and can roll along these surfaces.

[0058] In the intermediate assembly position 27 of the extension scaffold support 22, a handrail (not shown) can be attached to one or each auxiliary scaffold support 40.1, 40.1 with the aid of a railing adapter (not shown), which handrail extends along the respective auxiliary scaffold support 40.1, 40.2 or parallel to the respective auxiliary scaffold support 40.1, 40.2, so that when the respective auxiliary scaffold support 40.1, 40.2 is moved in the direction of movement 42, the handrail is moved together with the respective auxiliary scaffold support 40.1, 40.2 in the direction of movement 42 into the extension assembly end position 47. Such a railing adapter has become known in practice, for example, under the designation “railing adapter” of the applicant. List of reference symbols

[0059] 15 Exit scaffolding platform

[0060] 16.1 (first, front) platform scaffold support

[0061] 16.2 (second, rear) platform scaffold support

[0062] 17 (first) transverse distance (22 (in position 27) to 16.1 ))

[0063] 18.1 Platform scaffold beam longitudinal axis (from 16.1 )

[0064] 18.2 Platform scaffold beam longitudinal axis (from 16.2)

[0065] 19 Initial work surface

[0066] 20 scaffolding floor

[0067] 20.1 Initial scaffolding floor

[0068] 20.2 Extension scaffolding floor

[0069] 21 Assembly aid device

[0070] 21.1 Assembly aid device

[0071] 21.2 Assembly aid device

[0072] 22 extension scaffold beams

[0073] 23 (first) longitudinal distance (21.1 to 21.2)

[0074] 24 (second) transverse distance (16.1 to 16.2)

[0075] 26 contact surfaces (of 21)

[0076] 26.1 contact surface (of 21.1 )

[0077] 26.2 contact surface (of 21 .2)

[0078] 27 Intermediate assembly position

[0079] 28.1 Cross section (of 16.1 ) (see Figure 9)

[0080] 28.2 Cross section (of 22) (see Figure 9)

[0081] 30 mounting and guide adapters

[0082] 30.1 Mounting and guide adapters

[0083] 30.2 Mounting and guide adapters

[0084] 31 (second) longitudinal distance (30.1 to 30.2)

[0085] 35.1 Mounting adapter (cross connector)

[0086] 35.2 Mounting adapter (cross connector)

[0087] 36.1 (open at the top) adapter opening (from 35.1) 36.2 (open at the top) adapter opening (from 35.2)

[0088] 37 (open at the top) adapter recess (of 30)

[0089] 37.1 (open at the top) adapter recess (from 30.1 )

[0090] 37.2 (open at the top) adapter recess (from 30.2)

[0091] 38 (third) longitudinal distance (35.1 to 35.2)

[0092] 39 (second) transverse distance (35.1 to 35.1 and 35.2 to 35.2)

[0093] 40 auxiliary scaffold beams (see Figure 10)

[0094] 40.1 Auxiliary scaffold beams

[0095] 40.2 Auxiliary scaffold beams

[0096] 42 Direction of displacement (arrow) (see Figures 5 and 6)

[0097] 43 carrying and shifting devices (out of 30)

[0098] 43.1 Carrying and shifting device (from 30.1)

[0099] 43.2 Carrying and shifting device (from 30.2)

[0100] 44.1 Roller

[0101] 44.2 Roller

[0102] 45.1 Shifting aid / Extension scaffold deck (20.2)

[0103] 45.2 Shifting aid / Extension scaffold deck (20.2)

[0104] 47 Extension assembly end position (see Figures 6 and 7)

[0105] 48 suspension claws (of 20)

[0106] 49.1 (vertical) support leg (of 50.1 )

[0107] 49.2 (vertical) support leg (of 50.2)

[0108] 50.1 U-profile (of 22)

[0109] 50.2 U-profile (from 16.1 )

[0110] 51 (first) direction (parallel to the displacement direction 42) (see Figure 6)

[0111] 52 open space

[0112] 53 Extension work surface

[0113] 54 (third) transverse distance (22 (in position 47) to 16.1 ) (see Figure 6)

[0114] 55 Extension scaffold platform work surface

[0115] 56 Extension scaffold platform

[0116] 57 Carrying device

[0117] 58 support bodies

[0118] 59 (third) fastening body 60 support plate (of 21 , 57)

[0119] 61 support plate (of 21, 58)

[0120] 62 Hanging aid (hanging claw)

[0121] 64 (first) fastening body (of 30)

[0122] 65 leadership bodies (out of 30)

[0123] 66.1 Mounting adapter plate (of 64)

[0124] 66.2 Mounting adapter plate (of 64)

[0125] 67 (first) distance (66.1 to 66.2)

[0126] 68.1 Guide plate (of 64)

[0127] 68.2 Guide plate (of 64)

[0128] 69 (second) distance (68.1 to 68.2)

[0129] 70.1 axis of rotation (from 44.1 )

[0130] 70.2 axis of rotation (from 44.2

[0131] 72 Final assembly position

[0132] 73 Arrangement (Fig. 9)

[0133] 74 securing devices

[0134] 75 Double connection (wedge) head (wedge head coupling, double)

[0135] 76.1 (first) connecting (wedge) head

[0136] 76.2 (second) connecting (wedge) head

[0137] 77.1 (first) connecting wedge

[0138] 77.2 (second) connecting wedge

[0139] 78 projection (rosette part)

[0140] 79 (first) fastening body

[0141] 80 fasteners / hexagon screw

[0142] 81 (first) adapter plate (of 35)

[0143] 82 (second) adapter plate (of 35)

[0144] 83 (fourth) transverse distance (85.1 to 16 and 82.2 to 16.1 ) (see Figure 5)

[0145] 84 (second) direction

[0146] 85.1 (free) auxiliary scaffold beam end (of 40.1 )

[0147] 85.2 (free) auxiliary scaffold beam end (of 40.2)

[0148] 86.1 (first) groove-rear-engaging web (of 40)

[0149] 86.2 (second) groove-rear-engaging web (of 40)

Claims

Patent claims 1. Method for the preliminary assembly of an extension scaffold support (22) and at least one extension scaffold floor (20.2) supported thereon for enlarging an initial working surface (19) of an initial scaffold platform (15) which has a platform scaffold support (16.1, 16.2) which extends along a platform scaffolding girder longitudinal axis (18.1, 18.2) of the platform scaffolding girder (16.1, 16.2), characterized by the following assembly steps: a) attaching an auxiliary assembly device (21; 21.1, 21.2) to the platform scaffolding girder (16.1) for temporarily depositing the extension scaffolding girder (22) in an intermediate assembly position (27); b) placing the extension scaffolding girder (22) on a support surface (26; 26.1, 26.2) of the auxiliary assembly device (21; 21.1, 21.2) in the intermediate assembly position (27) at a first transverse distance (17) from the platform scaffolding girder (16.1); c) Attaching a fastening and guide adapter (30; 30.1 , 30.2) on the extension scaffold support (22) resting on the support surface (26; 26.1, 26.2) of the auxiliary assembly device (21; 21.1, 21.2), wherein the fastening and guiding adapter (30; 30.1, 30.2) has an adapter recess (37; 37.1, 37.2) for inserting an auxiliary scaffold support (40.1, 40.2) and for inserting and guiding the auxiliary scaffold support (40.1, 40.2) in a displacement direction (42) transversely or perpendicularly to the platform scaffold support longitudinal axis (18.1) of the platform scaffold support (16.1); d) Inserting the auxiliary scaffold support (40.1, 40.2) for supporting the extension scaffold support (22) and for displacing the extension scaffold support (22) relative to the platform scaffold support (16.1) in the displacement direction (42) into the adapter recess (37; 37.1, 37.2) of the fastening and guide adapter (30; 310., 30.2) and inserting the auxiliary scaffold beam (40.1, 40.2) in the Displacement direction (42) through the adapter recess (37; 37.1, 37.2) of the fastening and guide adapter (30; 30.1, 30.2), which is fastened to the extension scaffold support (22) resting on the support surface (26.1, 26.2) of the auxiliary assembly device (21; 21.1, 21.2); e) before assembly step d) or subsequently, fastening the auxiliary scaffold support (40.1, 40.2) to the starting scaffold platform (15) with the aid of a fastening adapter (35.1, 35.2); f) if not already done or present, attaching a carrying and shifting device (43.1, 43.2) to the fastening and guiding adapter (30; 30.1, 30.2) for carrying the extension scaffold support (22) and for shifting the extension scaffold support (22) relative to the auxiliary scaffold support (40.1, 40.2) in the shifting direction (42), so that the auxiliary scaffold support (40.1, 40.2) can be moved through the adapter recess (37; 37.1, 37.2) delimited by the carrying and shifting device (43.1, 43.2).2) of the fastening and guide adapter (30; 30.1, 30.2); g) Attaching at least one displacement aid (45.1, 45.2) for displacing the extension scaffold support (22) to the extension scaffold support, so that the extension scaffold support (22) can be displaced with the aid of the at least one displacement aid (45.1, 45.2) from its intermediate assembly position (27), in which the extension scaffold support (22) rests on the support surface (26; 26.1, 26.2) of the assembly aid device (21; 21.1, 21.2), in the displacement direction (42) into an extension assembly end position (47), in which the extension scaffold support (22) is arranged at a third transverse distance (54) from the platform scaffold support (16.1), which is greater than the first transverse distance (17); h) Moving the extension scaffold support (22) with the aid of at least one moving aid (45.1, 45.2) from the intermediate assembly position (27) in which the extension scaffold support (22) rests on the support surface (26; 26.1, 26.2) of the auxiliary assembly device. (21; 21.1, 21.2), in the displacement direction (42) into the extension assembly end position (47); i) wherein the at least one displacement aid (45.1, 45.2) is either at least one extension scaffolding floor (20.2) which, after the extension scaffolding support (22) has been moved into the extension assembly end position (47), is also attached to the platform scaffolding support (16.1 ) is attached in such a way that it forms an extension work surface (53), so that an extension scaffolding platform (56) is formed with an extension scaffolding platform work surface (55) which is enlarged by the extension work surface (53) compared to the initial work surface (19), or is an aid which is removed from the extension scaffolding support after the extension scaffolding support has been moved into the extension assembly end position, wherein or on which at least one extension scaffolding floor is attached to the platform scaffolding support and to the extension scaffolding support in such a way that it forms an extension work surface, so that an extension scaffolding platform is formed with an extension scaffolding platform work surface which is enlarged by the extension work surface compared to the initial work surface.

2. Method according to claim 1, characterized in that a support device (57) is used as the auxiliary assembly device (21; 21.1, 21.2), which has a support plate (60) having the support surface (26; 26.1, 26.2) and which extends transversely or vertically from a support body (58) of the support device (57), which at one support body end extending away from the support surface (26; 26.1, 26.2) has at least one Hanging aid (62) for hanging the assembly aid device (21 ; 21.1 , 21.2) on the platform scaffold support (16.1 ).

3. Method according to one of claims 1 or 2, characterized in that the extension scaffold support (22), when or as long as it rests on the support surface (26; 26.1, 26.2) of the auxiliary assembly device (21; 21.1, 21.2), is or is secured against falling from the support surface (26; 26.1, 26.2) by means of a releasable securing means (74), by means of which the extension scaffold support (22) and the auxiliary assembly device (21; 21.1, 21.2) are or are connected in a form-fitting and / or force-fitting manner.

4. The method according to claim 3, characterized in that a double connection head (75) is used as the securing means (74), which has a first connection head (76.1) which is detachably attachable or is detachably attached to a projection (78) by means of a first connection wedge (77.1), which has at least one first opening for the insertion of the first connection wedge (77.1), wherein the projection (78) is firmly connected to the assembly aid device (21; 21.1, 21.2), and which has a second connection head (76.2) which extends away from the first connection head (76.1) and which is detachably attachable or is detachably attached to a first fastening body (79) by means of a second connection wedge (77.2), which has a second opening for the insertion of the second connection wedge (77.2), wherein the first fastening body (79) is detachably attachable or is detachably attached to the extension scaffold support (22) by means of at least one fastening means (80).

5. Method according to one of claims 1 to 4, characterized in that a fastening and guiding body is used as the fastening and guiding adapter (30; 30.1, 30.2), which has a second fastening body (64) and a guiding body (65), wherein the second Fastening body (64) at least one adapter fastening plate (66.1 , 66.2) or at least two adapter fastening plates (66.1, 66.2) for releasably fastening the fastening and guide adapter (30; 30.1, 30.2) on the extension scaffold support (22), and wherein the guide body (65) extending away from the second fastening body (64) has at least two guide plates (68.1, 68.2) for guiding the fastening and guide adapter (30; 30.1, 30.2) along the extension scaffold support (22) inserted through the adapter recess (37; 37.1, 37.2), which are arranged parallel to one another at a second distance (69).

6. Method according to one of claims 1 to 5, characterized in that as the carrying and shifting device (43.1, 43.2) a roller (44.1, 44.2) or several rollers (44.1, 44.2) or one plate or several plates are used, which are located on the auxiliary scaffold support (40.1, 40.2) is or are supported so as to be movable or displaceable relative to the latter in the direction of displacement (42).

7. Method according to one of claims 1 to 6, characterized in that a third fastening body (59) is used as the fastening adapter (35.1, 35.2), which has at least one first adapter plate (81) for fastening the fastening adapter (35.1, 35.2) to the platform scaffold support (16.1) or at least two first adapter plates (81) for fastening the fastening adapter (35.1, 35.2) to the platform scaffold support (16.1), which are arranged parallel to one another at a first plate spacing, and which has at least one second adapter plate (82) for fastening the auxiliary scaffold support (40.1, 40.2) to the fastening adapter (35.1, 35.2) or at least two second adapter plates (82) for fastening the auxiliary scaffold support (40.1, 40.2) on the fastening adapter (35.1, 35.2), which are arranged parallel to one another at a second plate distance.

8. Method according to one of claims 1 to 7, characterized in that following the assembly step f) the auxiliary scaffold support (40.1, 40.2) is first attached in a pre-assembly position to the fastening adapter (35.1, 35.2) so as to be displaceable relative thereto in the displacement direction (42) and is then displaced in the displacement direction (42) relative to the fastening adapter (35.1, 35.2), namely up to a final assembly position (72), in which a free auxiliary scaffold support end (85.1, 85.2) of the auxiliary scaffold support (40.1, 40.2) extending in a first direction (51) parallel to the displacement direction (42) has a fourth transverse distance (83) to the platform scaffold support (16.1) which is greater than the third transverse distance (54).

9. Method according to claim 8, characterized in that in the pre-assembly position, a handrail is attached to the auxiliary scaffold support with the aid of a railing adapter, which handrail extends along the auxiliary scaffold support, so that when the auxiliary scaffold support is displaced in the displacement direction up to the final assembly position, the handrail is displaced together with the auxiliary scaffold support in the displacement direction.

10. Method according to one of claims 1 to 9, characterized in that the displacement aid (45.1, 45.2) is attached to the extension scaffold support (22) and to the platform scaffold support (16.1) in such a way that after the extension scaffold support (22) has been moved with the aid of the displacement aid (45.1, 45.2) into the extension assembly end position (47) and the displacement aid (45.1, 45.2) has been subsequently attached to the platform scaffold support (16.1), the extension scaffold support (22) is fixed with the aid of the displacement aid (45.1, 45.2) against displacement in a second direction (84) parallel to the displacement direction (42) relative to the platform scaffold support (16.1).

Images