WO2022117365A1

WO2022117365A1 - Railing bar, modular scaffolding, method for erecting modular scaffolding, and use of a railing bar in modular scaffolding

Info

Publication number: WO2022117365A1
Application number: PCT/EP2021/082313
Authority: WO
Inventors: Erzad MIKIC
Original assignee: Peri Ag
Priority date: 2020-12-02
Filing date: 2021-11-19
Publication date: 2022-06-09
Also published as: DE102020132056A1

Abstract

The invention relates to a railing bar (10) for modular scaffolding (100), which railing bar has, at at least one end (11, 12), a double hook (20) for connecting to a standard (30) of the modular scaffolding (100). In a top view of the railing bar (10), the double hook (20) has two mutually spaced hook elements (21, 22) disposed axially symmetrically with respect to a longitudinal axis (A1) of the railing bar (10), which hook elements can be selectively brought into engagement with a perforated disk (40) disposed on the standard (30). The invention also relates to modular scaffolding (100) having a railing bar (10) according to the invention, to a method for erecting modular scaffolding (100), and to a use of a railing bar (10) according to the invention.

Description

Railing, modular scaffolding, method of erecting a modular scaffolding, and using a railing in a modular scaffolding

Reference to Related Applications

The present application claims priority from German Patent Application No. 10 2020 132 056.6, filed December 2, 2020, the entirety of which is incorporated herein by reference.

The invention relates to a railing for a modular scaffold and a modular scaffold with a railing according to the invention. In addition, the invention relates to a method for erecting a modular scaffold and the use of a railing post according to the invention in a modular scaffold.

Technical background

A modular scaffold includes prefabricated, standardized scaffolding components that enable the scaffolding to be erected and dismantled quickly, for example to scaffold a building facade. The scaffolding components are connected using standardized connecting elements and/or connection nodes, which - with or without standardized adapter components - enable connections from different directions. The scaffolding components can thus be put together to form complex planar or spatial scaffolding. Since these usually include several scaffolding levels, fall protection in the form of railings is provided. When scaffolding is erected, however, there is no fall protection until the site is assembled.

In the prior art, scaffolding that can be dismantled with a so-called “advancing railing” have therefore already been proposed. If the guardrail is in front, the guardrail of the next scaffolding level is erected from the level below, namely in front the floor covering. If the floor covering then follows, the fall protection is already in place. In this way, safety is increased when erecting scaffolding with several scaffolding levels.

A method for assembling and disassembling a collapsible facade scaffolding, in which the railing is designed as a leading railing, can be found in published application DE 196 33 092 A1, for example. In order to assemble a railing element that belongs to a scaffolding level to be erected before the base plates of the scaffolding level to be erected, this is coupled at one end to an already assembled support element in the area of the scaffolding level to be erected, and at the other end to an additional supporting element that has not yet been assembled. During assembly of the further support element, the railing element is then pivoted into a horizontal position and thus brought into its end position.

The published application DE 101 11 976 A1 shows an example of a method for attaching a plurality of railing elements to one level of scaffolding, in which the railing elements have engagement means at their ends for engaging in a perforated rosette connected to a vertical support. These engagement means are designed like hooks or claws, so that they enable pivoting of the railing elements relative to the vertical support having the rosette when engaged with a rosette on one side. The hole rosette defines the fastening position of the railing elements.

Furthermore, published application DE 10 2018 133 506 A1 shows a connection head for a tube profile of a modular scaffolding component, in particular for a vertical diagonal. The connection head has a connection section and an eye flange. The connection head is articulated to the tubular profile of the modular framework component via the eye flange, so that the tubular profile and the connection head can be pivoted relative to one another. The connection section of the connection head is used to attach the tube profile to a connection rosette of a vertical standard. For this purpose, the connection section forms two claws, which come to rest above and below the connection rosette when the connection section is pushed onto the connection rosette. A locking means in the form of a U-shaped locking bolt is provided for locking the connection head on the connection rosette, which is inserted through the connection head and the connection rosette for this purpose. Due to the special design of the connection head, the one with a vertical post can be connecting pipe section are arranged eccentrically with respect to the vertical post. This increases the connection options.

Proceeding from the prior art mentioned above, the object of the present invention is to expand the connection options when connecting a railing post to a vertical post. In this way, greater flexibility should be created when erecting a scaffold. At the same time, the connecting or connecting means required for this should be simplified.

The handrail with the features of claim 1 and the modular scaffold with the features of claim 8 and the method for erecting a modular scaffold with the features of claim 13 are proposed to solve the tasks. In addition, a preferred use of a railing post according to the invention in a modular framework is specified.

Disclosure of Invention

A railing post for a modular scaffold is proposed, which has a double hook at at least one end for connection to a vertical post of the modular scaffold. In a plan view of the railing, the double hook comprises two hook elements which are spaced apart from one another and arranged axisymmetrically with respect to a longitudinal axis of the railing, which can be selectively engaged with a perforated disk arranged on the vertical post.

Due to the axially symmetrical arrangement of the two hook elements in relation to the longitudinal axis of the railing rail, both hook elements are at a distance from the longitudinal axis. This means that both hook elements are arranged eccentrically with respect to the longitudinal axis. If a hook element is brought into engagement with the perforated disc, the railing rail comes to lie in front of or behind the vertical post. Since either one or the other hook element can be brought into engagement with the perforated disc, the handrail rail can be used in different positions. If the perforated disc is used to connect other scaffolding components, space can be created for the other scaffolding components in this way. For example, the railing can be mounted next to or at the same height as a longitudinal bar. Depending on the desired width of use of the scaffold bay, the guardrail can be arranged on the inside or outside of the longitudinal ledger. The position of use of the railing rail can preferably also be influenced in that the double hook or a hook element of the double hook is brought into engagement with a specific opening in the perforated disk. This is because the perforated disc preferably has a large number of holes which are suitable for receiving a hook element of the double hook.

If the railing rail has a double hook at each of its two ends, there are further connection options that lead to different usage positions of the railing rail. For example, the first double hook can be brought into engagement with a perforated disc of a first vertical post, so that the railing rail comes to rest on the outside or in front of the vertical post. The further double hook can then be brought into engagement with a perforated disk of a further vertical post in such a way that the railing rail comes to rest on the inside or behind the further vertical post. In this case, the railing rail runs at an angle to an axis grid specified by the two vertical standards.

The proposed double hook thus enables different positions of use of the railing rail, even if the railing rail is connected to another vertical post at the other end by means of connection means other than a further double hook. In addition, the double hook can be connected directly, i.e. without an adapter, to a perforated disk of a vertical post, so that the number of parts is reduced. In addition, the double hook can be of comparatively simple design, so that the railing rail having the double hook can be manufactured simply and inexpensively.

According to a preferred embodiment, the double hook is designed as a U-shaped angle, which has two legs, preferably running parallel, for forming the two hook elements and is firmly connected, preferably welded, to the railing rail. The double hook can thus be produced in a simple manner from a flat material, in particular from a metal sheet. The production can take place, for example, in a stamping/bending process. The two hook elements can be formed by stamping or cutting from the two legs of the bracket.

Furthermore, the two hook elements of the double hook preferably run parallel. Due to the axisymmetric arrangement of the two hook elements with respect to the Longitudinal axis of the railing, this means that the two hook elements also run parallel to the longitudinal axis of the railing.

Furthermore, the two hook elements of the double hook are preferably oriented towards the same side. This also results almost inevitably from the axisymmetric arrangement of the two hook elements in relation to the longitudinal axis of the railing.

The two hook elements are preferably each U-shaped and open towards the railing. Accordingly, the railing rail must be tilted sharply in order to bring one of the two hook elements into engagement with the perforated disc. As a result, the railing is held captive when it is connected at the other end to a further vertical post and pivoted relative to the first vertical post, for example to form a leading railing. When a hook element is brought into engagement with the perforated disk of a vertical post, the hook element is preferably inserted from above into an opening in the perforated disk. In this way, the double hook can be supported on the perforated disc, so that unintentional loosening is reliably prevented.

As already mentioned, the railing rail can have a double hook with two hook elements at both ends. In this case, the two hook elements of one double hook are preferably on one side, for example downwards (relative to the position of use of the railing), and the two hook elements of the other double hook are on the other side, for example upwards (relative to the position of use of the railing). , oriented. This means that the hook element is inserted into the opening of the respective perforated disk once from above and once from below. This facilitates the formation of a leading railing. Because to connect the railing rail with the perforated disc of an already installed vertical post, it must be guided steeply upwards in order to insert a hook element of the double hook - preferably from above - into an opening in the perforated disc. In this position, a hook element of the additional double hook can be connected to the perforated disc of a vertical post that is still to be assembled. To do this, the hook element of the additional double hook is inserted from below into an opening in the perforated disk of the vertical post that is still to be installed. This vertical post can then be mounted, with the railing being pivoted in relation to the two vertical posts. The hook elements of the two double hooks allow such a pivoting movement and are held captive in an opening of the respective perforated disk. A railing that has a double hook at both ends cannot be easily removed from a scaffold bay. This means that the railing rail cannot be removed or dismantled at any time, but only when the scaffolding bay encompassing the railing rail is dismantled. The already mounted railing with two double hooks is thus secured in its position. In this way, increased security requirements can be taken into account. In particular, manipulation of the framework by external influences can be prevented.

According to an alternative embodiment of a railing rail, this does not have a double hook at both ends, but rather the double hook at one end and connecting means at the other end, which are formed on a connection head connected to the railing rail, which is movable relative to the railing rail, in particular pivotable about an axis. If the connection head is connected to a vertical post, the railing rail can be moved, in particular pivoted, relative to the connection head or the vertical post. This is particularly advantageous if the railing is to be used to form a leading railing.

The connection head is preferably articulated to the railing rail. This means that the railing rail and the connection head are connected via a joint. The joint defines the axis about which the railing rail can be pivoted relative to the connection head. When the railing rail is installed, that is to say when the railing rail is in the position of use, the axis about which the railing rail can be pivoted preferably runs horizontally.

To form the joint, the connection head can have an eye flange with an eye. The longitudinal axis of the eye corresponds to the axis about which the railing rail can be pivoted. A bolt can be guided through the eye, which is held in openings on the jacket side of an end-side tubular piece of the railing rail.

For connection to a perforated disc of a vertical post, the connection head can also have a connection section with two claws that can be pushed onto the perforated disc in such a way that one claw comes to rest above and one claw below the perforated disc. To accommodate a locking means, for example in the form of a U-shaped locking bolt, the connection section can have openings that can be brought into overlap with an opening in the perforated disk, so that the locking means can be inserted into the openings. According to a preferred embodiment of the present disclosure, the connection head is designed analogously to the connection head of DE 10 2018 133 506 A1 mentioned at the outset. The railing rail to be connected to a vertical standard can thus be arranged eccentrically in relation to the vertical standard via the connection head.

The proposed connection head enables similar connection options as the double hook arranged on the other end of the railing. In contrast to the embodiment with two double hooks arranged at the ends, the embodiment with a double hook and a connection head can be removed or dismantled at any time from a fully assembled scaffold bay. All you have to do is loosen the locking device. The railing is therefore not protected from external influences. In addition, the connection head is more complex than the double hook, so that the production costs increase. However, if the railing should be able to be dismantled at any time, a railing post that has the double hook on one end and the connection head on the other is the preferred solution.

The railing rail is advantageously formed from a metal tube which, in principle, can have any desired cross section. However, the metal tube preferably has a circular cross-sectional shape. The design as a metal tube has the advantage that the railing has a low weight and is therefore easier to handle, especially during assembly. At the same time, high dimensional stability is guaranteed over the tube cross section. This applies in particular to a circular cross-sectional shape. In addition, a circular cross-sectional shape can be gripped more easily with the hand, for example in order to hold or support oneself. There are no annoying edges that could possibly lead to an injury.

It is also proposed that the metal tube is plastically deformed at at least one end to accommodate the double hook and/or the connecting means. The cross-sectional shape of the metal tube can be changed by plastic deformation in such a way that the accommodation of the double hook and/or the connecting means is simplified.

To solve the task mentioned above, a modular scaffolding with at least one railing and at least one vertical post is proposed, with the vertical post having a perforated disk for connection to the railing. The railing can have a double hook at each of its two ends. Alternatively, the railing rail can have a double hook at one end and a connection head at the other end. Both the double hook and the connection head can each be connected to the perforated disc in such a way that when the railing rail is installed, it can be pivoted relative to the vertical post. Thus, with the help of the railing, a modular scaffolding with a leading railing can be formed. If the modular scaffolding is erected in front of a facade, the scaffolding beam can be used both on the side facing the facade and on the side facing away from the facade. Depending on the local conditions or the design of the facade, fall protection may be required on both sides.

The perforated disc is preferably designed as a rosette surrounding the vertical post, which has several, preferably at least four, identical openings arranged at the same angular distance from one another for receiving a hook element of a double hook of the railing rail. In this case, the hook element can be inserted into each of the openings of the perforated disc, so that there are several connection options. Depending on the opening in which the hook element is inserted, the usage position of the railing rail varies. By changing the hook element of the double hook, the position of use of the railing rail can be changed again.

The plurality of openings for receiving a hook element of a double hook are preferably arranged in the shape of a cross or a star when viewed from above the perforated disk. In the position of use of the vertical post having the perforated disc, the openings of the perforated disc arranged in a cross or star shape are preferably offset in their angular position relative to an axis grid of the modular framework. The offset or eccentric arrangement of the railing rail via the double hook in relation to the axis grid of the modular scaffold can be reinforced or eliminated in this way by the perforated disc.

In a further development of the embodiments described here, it is proposed that the perforated disk has further openings for accommodating further scaffolding components, in particular decking bars and/or longitudinal bars running horizontally in the position of use. The further openings are preferably also arranged at the same angular distance from one another, preferably offset by half the angular distance from the first openings, which serve to accommodate a hook element of the double hook. In this way, the perforated disc offers a wide range of connection options for a large number of different scaffolding components. According to a first preferred embodiment of the modular scaffolding, the railing is connected at one end via the double hook to a first vertical post and at the other end via a further double hook to a second vertical post. The hook elements of the first double hook are preferably oriented to one side, for example upwards, and the hook elements of the second double hook are oriented to the other side, for example downwards. This orientation of the hook elements facilitates the assembly of the railing since the hook elements can be inserted more easily into an opening in the respective perforated disk. The railing post, which has a double hook at both ends, cannot be removed or dismantled at any time, but only in connection with the dismantling of the respective scaffold bay. The modular scaffolding that has this railing rail is therefore particularly well protected from external influences.

According to a further preferred embodiment of the modular scaffolding, the railing is connected at one end via the double hook to a first vertical post and at the other end via connecting means to a second vertical post, the connecting means being formed on a connection head connected to the railing, which can be moved relative to the railing, in particular by one Axis is pivotable. This railing rail can be removed or dismantled at any time if required.

In the case of the modular scaffolding described here, the longitudinal axis of the railing rail can run parallel or at an angle with respect to an axis grid of the modular scaffolding. The axis grid of the modular framework is preferably defined by the longitudinal axes of several vertical standards. In relation to these longitudinal axes, the railing rail can also be offset by a certain amount or arranged eccentrically. For example, the railing can be in front of or behind a longitudinal axis. The amount of offset or eccentricity is preferably between 40 mm and 60 mm, for example 50 mm. A railing rail running obliquely to a longitudinal axis can be located in front of a longitudinal axis in sections and behind it in sections. This means that the railing crosses the longitudinal axis.

The eccentric arrangement of the railing allows the arrangement of another scaffolding component at the same height as the railing. The further scaffolding component can be a longitudinal bar, for example. More than just one additional scaffolding component can also be connected via the one perforated disc. through the Due to the eccentric arrangement of the railing post, a large number of connection options for further scaffolding components on the same perforated disc are retained. For example, several longitudinal ledgers arranged on one level can be connected in addition to the railing.

Longitudinal bars form load-bearing scaffolding components in a modular scaffold. They serve to reinforce the modular framework. If a longitudinal bar is to be installed at the level of a railing, the railing must be moved inwards or outwards. This can be implemented in a simple manner with the aid of a railing rail as described herein. The advantages of a stiffening longitudinal bar come into play in particular in connection with a guardrail in advance. Because in this case, the railing rail comes to rest in the immediate vicinity of a contact joint between two vertical standards inserted into one another, i.e. in the area of a "weak point" of the modular scaffold. With the help of at least one longitudinal bar, the rigidity and thus the load-bearing capacity in this area can be increased. For additional bracing, a crossbar can also be installed as an additional load-bearing scaffolding component.

In the additionally proposed method for erecting a modular scaffolding, a railing is connected to a first and a second vertical post. The method comprises the following steps: a) I bringing a hook element of the double hook arranged at one end of the railing rail into engagement with a perforated disk arranged at the first vertical post, b) connecting the other end of the railing rail to the second vertical post, c) positioning the railing rail with With the help of the second vertical post, which is brought into its position of use for this purpose.

With the help of the proposed method, in particular, a modular scaffolding with a leading railing can be erected. This means that the railing of a scaffolding level to be erected is mounted from the scaffolding level below. The method described can be used here.

Since the method described uses one of the handrails described, this is held captively on the two vertical posts during assembly. At the same time he can be pivoted relative to the two vertical posts, regardless of whether the railing rail has a double hook at both ends or is connected to a double hook at one end and to a connection head at the other end.

In step a), the railing rail is preferably aligned at an angle to the first vertical post and the hook element is brought into engagement with an opening in the perforated disk. In step b) and/or in step c), the railing rail is then pivoted at least in relation to the first vertical post. By pivoting, not only the railing rail is brought into its position of use, but also the second vertical post.

Furthermore, it is proposed that in step b) the railing rail is connected to the second vertical post using a connection head which is movable relative to the railing rail, in particular pivotable about an axis. A connection head is preferably used which is designed analogously to the connection head of DE 10 2018 133 506 A1 mentioned at the outset. Because this allows - similar to the double hook - an eccentric arrangement of the railing rail in relation to the vertical standard. With regard to the advantages of an eccentric arrangement, reference is made to the description above in order to avoid repetition.

In addition, the use of a railing rail described in a modular scaffolding to form a leading railing is proposed. In this application, the advantages of the invention, in particular the advantage of the eccentric arrangement of the railing rail in relation to at least one vertical post, come into play particularly clearly.

Preferred embodiments of the invention and their advantages are explained in more detail below with reference to the figures. These show:

1 is a perspective view of a modular scaffolding with a railing,

Fig. 2 is a perspective view of the railing of Fig. 1,

FIG. 3 shows an enlarged representation of a first end section of the railing rail of FIG. 1 , Fig. 4 is an enlarged view of a second end portion of the railing of

1 ,

5 shows a perspective representation of the end section of FIG. 3 in engagement with a perforated disk of a vertical post,

6 shows a perspective representation of the end section of FIG. 4 engaged with a perforated disk of a vertical post,

7 shows a perspective view of a modular scaffolding with another railing post,

Fig. 8 is a perspective view of the railing of Fig. 7

Fig. 9 is an enlarged view of a first end portion of the railing of the

figure 7,

Fig. 10 is an enlarged view of a second end portion of the railing of the

figure 7,

11 shows a perspective representation of the end section of FIG. 9 in engagement with a perforated disk of a vertical post,

12 shows a perspective representation of the end section of FIG. 10 in engagement with a perforated disk of a vertical post,

13 shows a top view of two railing bars designed according to FIG.

Fig. 14 a) to c) each show an enlarged representation of the areas circled in Fig. 13,

FIG. 15 shows a top view of two railing bars designed according to FIG. 7, which are in engagement with the perforated disks of three vertical standards at both of their ends, Fig. 16 a) to c) each show an enlarged representation of the areas circled in Fig. 15,

17 shows a top view of two railing bars designed according to FIG. 1, which are in engagement at both of their ends with the perforated disks of three vertical standards, longitudinal bars being arranged next to the railing bars,

Fig. 18 a) to c) each show an enlarged representation of the areas circled in Fig. 17,

19 shows a plan view of two railing bars designed according to FIG. 7, which are in engagement at both of their ends with the perforated disks of three vertical standards, with longitudinal bars being arranged next to the railing bars,

20 a) to c) each show an enlarged representation of the areas circled in FIG. 19, and

21 shows a perspective representation of a modular scaffolding during construction with railing bars for the formation of a leading railing.

Detailed description of the drawings

1 shows a section of a modular scaffolding 100 with a railing post 10 according to a first preferred embodiment.

The detail of Fig. 1 shows a scaffolding level with four vertical standards 30, two decking ledgers 60, which carry a scaffolding deck 61, two longitudinal ledgers 62 arranged in one plane with the decking ledgers 60, and a railing spar 10, which defines an outer side of the modular scaffolding 100 and above the longitudinal bar 62 arranged on the outside is arranged between two vertical posts 30 . The railing rail 10, the longitudinal bars 62 and the deck bars 60 are in engagement with perforated disks 40 which are connected to the vertical posts 30. Each perforated disk 40 has a plurality of, in this case four, first openings 41 and a plurality of, in this case likewise four, second openings 42 . The first openings 41 and second openings 42 are each arranged in a cross shape and offset in their angular position relative to one another, so that there are different connection options in a plane that is defined by the position of the perforated disk 40 . The four vertical posts 30 have longitudinal axes A2 which span an axis grid which has first axes Ax running in the longitudinal direction and second axes AY running in the transverse direction. While the deck bars 60 and the longitudinal bars 62 are each arranged centrally in relation to these axes Ax, AY, the railing rail 10 is arranged eccentrically in relation to an axis Ax. This means that a longitudinal axis Ai of the railing rail 10 does not run in the axis grid but alongside the axis grid. Sufficient space therefore remains on the perforated disks 40 for the connection of further scaffolding components.

The handrail 10 of FIG. 1 is shown in FIG. 2 on its own. 2 clearly shows that the railing rail 10 has ends 11 , 12 of different design. A first end 11 is provided with a double hook 20 which can be brought into engagement with a perforated disk 40 of a vertical post 30 . Instead of a double hook 20 , a second end 12 has connection means 50 for connection to a perforated disk 40 , the connection means 50 being formed on a connection head 51 which is connected to the railing strut 10 via a joint 53 . The two ends 11, 12 are shown enlarged in FIGS. 3 and 4 and are explained below on the basis of these.

FIG. 3 shows the first end 11 of the railing spar 10, which is equipped with a double hook 20. FIG. The double hook 20 consists of a U-shaped angle 25 which has two legs 23, 24 running parallel. The two parallel legs 23 , 24 each form a U-shaped hook element 21 , 22 which can be brought into engagement with a first opening 41 of a perforated disk 40 . The two hook elements 21, 22 are arranged axially symmetrically in relation to the longitudinal axis A1 of the railing spar 10 and each point downwards. This alignment also corresponds to the alignment in the subsequent position of use of the railing 10. The railing 10 is formed from a metal tube 13 which is plastically deformed at a first end 14 for connection to the double hook 20. The double hook 20 is frontally attached to the first end 14 of the metal tube 13 and welded to it. The double hook 20 is thus firmly connected to the metal tube 13 and forms part of the railing rail 10 .

The second end 12 of the railing strut 10 of FIGS. 1 and 2 can be seen in FIG. The second end 12 has the connection head 51 with the connecting means 50 instead of the double hook 20 . The metal tube 13 of the railing spar 10 is also plastically deformed at its second end 15 for connection to the connection head 51, specifically identical to the first end 14. The connection head 51 could thus be selectively connected to the first end 14 or the second end 15 of the metal tube 13. The second end 15 has openings 16 in which a safety bolt 52 is received, which is also guided through an eye of an eye flange 54 of the connection head 51 . In this way, the securing bolt 52 and the eye flange 54 of the connection head 51 form the joint 53 . The joint 53 allows the railing rail 10 or the metal tube 13 to be pivoted relative to the connection head 51 about an axis A3 which corresponds to the longitudinal axis of the securing bolt 52 . Alternatively, the connection head 51 can also be pivoted relative to the railing strut 10 or the metal tube 13 if the connecting means 50 of the connection head 51 are not already in engagement with a perforated disk 40 . In the present case, the connecting means 50 comprise two claws 55 which are pushed onto the perforated disc 40 in such a way that a first claw 55 comes to lie above and a second claw 55 below the perforated disc 40 . In this case, openings 56 of the connecting head 51 are brought into overlap with a second opening 42 of the perforated disk 40, so that a locking means 57 in the form of a U-shaped locking pin can be inserted into the openings 56, 42.

Figures 5 and 6 show the handrail 10 of Figures 1 and 2 in connection with a perforated disk 40 of a vertical post 30.

FIG. 5 shows the first end 11 of the railing spar 10 which has the double hook 20 . The hook element 21 is inserted into a first opening 41 of the perforated disk 40 . The opening 41 of the perforated disk 40 already lies outside the axis grid, which is indicated by the axes Ax and AY. The fact that the hook element 21 of the railing 10 is also offset from the longitudinal axis Ai of the railing 10 results in an eccentric arrangement of the railing 10 with an eccentricity e between the longitudinal axis Ai of the railing 10 and the longitudinal axis Ax.

6 shows the second end 12 of the railing spar 10 with the connection head 51 and the connecting means 50 formed thereon, which are in engagement with a perforated disk 40 of a further vertical post 30 . The locking means 57 in the form of the U-shaped locking bolt is also guided through a first opening 41 in the perforated disk 40, so that the longitudinal axis Ai of the railing spar 10 has an eccentricity e relative to the axis Ax. The eccentric arrangement of the banister 10 in relation to the vertical posts 30 creates space for the connection of further scaffolding components, specifically at the same height as the banister 10. Examples are described further below.

A further preferred embodiment of a railing rail 10 can be seen in FIG. 7 . This differs from the one previously described in that it has a double hook 20 at each of its two ends 11 , 12 . The further double hook 20 replaces the connection head 51 with the connecting means 50. The further double hook 20 is designed identically to the first double hook 20, but is oriented differently, so that the hook elements 21, 22 do not point downwards but upwards (see also Fig. 8 , which shows the handrail 10 on its own).

FIG. 9 corresponds to FIG. 3, so that reference is made to the description of FIG. FIG. 10 shows the further double hook 20 with the hook elements 21, 22 pointing upwards. FIG. 11 corresponds to FIG. 5, so that reference is made to the description of FIG.

Fig. 12 shows the additional double hook 20 engaged with a perforated disk 40 of a further vertical post 30. Of the two hook elements 21, 22, the inner hook element 21 is in turn received in a first opening 41 of the perforated disk 40, so that the longitudinal axis Ai of the railing post 10 has the eccentricity e with respect to the longitudinal axis Ax.

The handrails 10 shown in FIGS. 1 to 12 can be offset both outwards and inwards with respect to the axis Ax of the axis grid extending in the longitudinal direction. Examples are shown in Figures 13 to 20, which are described below.

FIGS. 13 and 14 a) -c) show a first example with two railing posts 10 which are each designed according to the embodiment of FIG. This means that a double hook 20 is arranged on the first end 11 of the railing spar 10 and a connection head 51 is arranged on the second end 12 of the railing spar 10 . The longitudinal axes Ai of the two railings 10 are each offset outwards by an eccentricity e in relation to the axis Ax extending in the longitudinal direction, so that both railings 10 come to rest on the outside. This enables the connection of further scaffolding components, for example the connection of longitudinal bars 62 (see FIGS. 17 and 18 a)-c)). FIGS. 15 and 16 a)-c) show an example with two railing bars 10, of which the left railing bar 10 is designed according to the embodiment of FIG. 1 and the right hand railing 10 according to the embodiment of FIG. This means that the left handrail 10 has a double hook 20 at its first end 11 and a connection head 51 with connecting means 50 at its second end 12 . In contrast, the right-hand railing rail 10 has a double hook 20 at both ends 11 , 12 , which, however, differ in terms of the orientation of their hook elements 21 , 22 . While the left handrail 10 is offset outwards relative to the axis Ax, the right handrail 10 is offset inwards relative to the axis Ax. The position of use of the railings 10 is therefore different. In addition, there are different widths of use in the respective scaffolding bays. In addition to the railing posts 10, other scaffolding components, for example longitudinal bars 62, can also be arranged on the perforated disks 40 of the vertical posts 30 (see FIGS. 19 and 20 a)-c)).

Fig. 21 shows an example of a modular scaffold 100 with a leading railing under construction. Leading railing means that the railing posts 10 of the scaffolding level to be erected are assembled from the scaffolding level below, specifically in front of the scaffolding deck 61 .

To form the leading railing, the first end 11 of the railing rail 10 is first attached to the perforated disk 40 of a vertical post 30 that has already been installed. When using a handrail 10 described here, only one hook element 21 or 22 of the double hook 20 has to be brought into engagement with an opening 41 of the perforated disk 40 . Here, the orientation of the hook elements 21, 22 of the double hook 20 at the first end 11 of the railing rail 10 proves to be an advantage. Because the hook elements 21 , 22 are directed downwards, they can be threaded more easily into the opening 41 of the perforated disk 40 . The second end 12 of the railing 10 is then connected to the perforated disk 40 of a vertical post 30 that is still to be assembled. This can be done—depending on the design of the railing post 10—with the aid of a further double hook 20 or, as shown in FIG. 21, with the aid of a connection head 51 and the connection means 50 formed thereon. After the second end 12 has been attached to the further vertical post 30, this can be mounted or brought into its position of use (see the sequence of movements indicated in FIG. 21). The vertical post 30 is this on a vertical post 30 of the lower Scaffold level attached. After the formation of the leading railing, the deck ledgers 60, the longitudinal ledgers 62 and the scaffold decking 61 can be installed. The pre-installed railing in front serves as fall protection. In FIG. 21, the scaffolding level to be erected has a leading railing on both sides, ie both on the outside and on the inside. An inside arrangement of the railing may be necessary if the facade (not shown), in front of which the modular scaffold is erected, has a recess, so that there is a dangerous gap between the facade and the modular scaffold. The recess can be formed, for example, by a recessed window.

Reference List

10 banister

11 first end of the railing

12 second end of the banister

13 metal tube

14 first end of metal tube

15 second end of the metal tube

20 double hooks

21 first hook element

22 second hook element

23 first leg

24 second leg

25 angles

30 vertical post

40 perforated disc

41 opening

42 opening

50 lanyards

51 connection head

52 safety bolts

53 joint

54 eye flange

55 claw

56 opening

57 locking means

60 topping bars 61 scaffold covering

62 longitudinal bars

100 module scaffold

Ai Longitudinal axis of the railing

A2 Longitudinal axis of the vertical standard

A3 Axis around which the connection head is pivoted Ax Axis of an axis grid running in the longitudinal direction

AY transverse axis of an axis grid

Claims

patent claims

1 . Railing (10) for a modular scaffold (100), which has a double hook (20) on at least one end (11, 12) for connection to a vertical post (30) of the modular scaffold (100), the double hook (20) in a plan view on the railing rail (10) comprises two hook elements (21, 22) which are spaced apart from one another and arranged axially symmetrically in relation to a longitudinal axis (Ai) of the railing rail (10) and which optionally engage with a perforated disk (40) arranged on the vertical post (30). are bringable.

2. Railing post (10) according to claim 1, wherein the double hook (20) is designed as a U-shaped angle (25), the two, preferably parallel, legs (23, 24) to form the two hook elements (21, 22) has and is firmly connected to the railing (10), preferably welded.

3. Railing post (10) according to claim 1 or 2, wherein the two hook elements (21, 22) run parallel and/or are oriented towards the same side.

4. banister (10) according to any one of the preceding claims, wherein the two hook elements (21, 22) are each designed U-shaped and the banister (10) are open towards.

5. Handrail (10) according to one of the preceding claims, wherein the handrail (10) has a double hook (20) with two hook elements (21, 22) at both ends (11, 22) and wherein the two hook elements (21, 22 ) of a double hook (20) to one side and the two hook elements (21, 22) of the further double hook (20) are oriented to the other side.

6. Railing rail (10) according to one of claims 1 to 4, wherein the railing rail (10) has the double hook (20) at one end and connecting means (50) at the other end, which are formed on a connection head (51) connected to the railing rail (10). , which is movable relative to the railing (10), in particular pivotable about an axis (A3).

7. Handrail (10) according to one of the preceding claims, wherein the handrail (10) is formed from a metal tube (13) which preferably has a circular cross-sectional shape and/or at least one end (14, 15) for receiving the double hook ( 20) and/or the connecting means (50) is plastically deformed.

8. Modular scaffolding (100) with at least one railing (10) according to one of the preceding claims and at least one vertical post (30) which has a perforated disk (40) for connection to the railing (10).

9. Modular scaffolding (100) according to claim 8, wherein the perforated disk (40) is designed as a rosette surrounding the vertical post (30), which has a plurality of, preferably at least four, identical openings (41) arranged at the same angular distance from one another for receiving a hook element (21, 22) of a double hook (20) of the railing (10).

10. Modular scaffolding (100) according to claim 8 or 9, wherein the perforated disc (40) has further openings (42) for receiving further scaffolding components, in particular decking bars (60) and/or longitudinal bars (62) running horizontally in the position of use.

11 . Modular scaffolding (100) according to one of Claims 8 to 10, the railing (10) being connected at one end via the double hook (20) to a first vertical post (30) and at the other end via a further double hook (20) or via connecting means (50) to a second vertical post (30), the connecting means (50) being formed on a connecting head (51) which is connected to the railing (10) and is movable relative to the railing (10), in particular pivotable about an axis (A3).

12. Modular scaffolding (100) according to one of claims 8 to 11, wherein the longitudinal axis (Ai) of the railing (10) runs parallel or at an angle in relation to an axis grid of the modular scaffolding (100), which preferably has several vertical posts through the longitudinal axes (A2). (30) is defined.

13. A method for erecting a modular scaffolding (100), in which a railing (10) according to any one of claims 1 to 7 is connected to a first and a second vertical post (30), comprising the steps of: 21, 22) of the double hook (20) arranged at one end (11) of the railing (10) with a perforated disc (40) arranged on the first vertical post (30), b) connecting the other end (12) of the railing (10) with the second vertical post (30), c) positioning of the railing (10) with the aid of the second vertical post (30), which is brought into its position of use for this purpose.

14. The method according to claim 13, wherein in step a) the railing (10) is aligned obliquely to the first vertical post (30) and the hook element (21, 22) is brought into engagement with an opening (41) of the perforated disk (40) and wherein in step b) and/or in step c) the railing (10) is pivoted at least in relation to the first vertical post (30).

15. The method according to claim 13 or 14, wherein in step b) the railing (10) is connected to the second vertical post (30) using a connection head (51) which is movable relative to the railing (10), in particular about an axis ( A3) is pivotable.

16. Use of a railing (10) according to any one of claims 1 to 7 in a modular framework (100) to form a leading railing.