EP1288392B1 - Support structure for the bearing system of a stage, a podium, a scaffold construction or similar - Google Patents

Description

TECHNICAL AREA

The present invention relates to a support structure comprising a system carrier, stems and a carrying device arranged below the system carrier, wherein the system carrier has a predetermined span, is designed for a predefined traffic load, has in each of its two end regions a first connection unit releasably connected to the stems and to Storage of coverings of a stage, podium, scaffolding or the like is used and the stems have in a predetermined Rastersystemmaß in their longitudinal direction corresponding counter-connection units.

STATE OF THE ART

It is known to use in stage constructions system carrier, which are designed for a certain span and traffic load and are plugged in a simple way on pipe connector. In practice, however, situations arise where such a carrier must be able to accommodate increased traffic loads without the system dimensions of the overall system within which the system carriers are used being able to be changed.

With a demanded increased traffic load, system carriers with increased cross-section values could be used. However, this is uneconomical because within the Scaffolding system several different system support would have to be used, which must be dimensioned differently in the connection area, so that a considerable amount of design effort to operate.

Furthermore, system carriers are used which each have a connection unit in their front end region. The carrying capacity is determined on the one hand by the profile itself and on the other hand by the connection unit, so that an increase in the cross-sectional values does not necessarily increase the load capacity.

A support structure of the type mentioned is out EP 0402816 A1 known.

In the DE 27 37 859 A1 is a truss girder carrier disclosed, the top flange has detachable connection units at the end region, wherein the truss girder is designed as a parallel carrier. In the middle of the upper belt a pipe socket is provided on the upper side, which is fixed by welding upwards perpendicular to the longitudinal axis of the upper belt and has an upwardly pointing pipe connector. At this pipe connector, a scaffolding stem of a scaffold arranged above can be connected.

The WO 80/00031 A1 discloses a scaffolding platform, which is designed to be height adjustable. The upper stage field is stiffened like a truss with a rising and falling diagonal. Overall, this work area can be moved with the stage covering on longitudinal stems as a whole.

PRESENTATION OF THE INVENTION

The present invention has the object or the technical problem of providing a support structure of the type mentioned, which can be produced economically, which can be easily and quickly assembled or disassembled, which fits seamlessly into the measurement system of the existing construction with system carriers and the Ensures the use of system carriers, which are dimensioned for a given span and traffic load, even with increased traffic occurring load.

The support structure according to the invention is given by the features of independent claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.

The support structure according to the invention is characterized in that the support device is designed as a separate component, the support device is detachably connected in its two end regions via at least one second connection unit to the offset by the Rastersystemmaß down counter-connection units and the support means in the connected state at least one Support for the system carrier forms, wherein the height level of the support is selected with respect to the terminal height level of the second terminal units to the counter-connection units so that the system carrier comes to rest on the support and the first terminal units of the system carrier to the corresponding relative to the second terminal units to the Rastersystemmaß offset upwards existing counter-connection units are connected.

The advantageous development is characterized by a horizontal bar having in its two end regions in each case a second connection unit for connection to the counter-connection units, and a first and second respectively counter-rotating diagonal bar, which form a triangular structure with the horizontal bar, which by the two diagonal bars formed corner region of the triangular structure is formed as a support for the support on which rests the support as soon as the support structure is connected to the counter-connection units of the stems.

A particularly advantageous embodiment, which overall represents a construction with high rigidity, is characterized in that between the support and the horizontal rod, a perpendicular to the horizontal rod extending vertical rod is connected.

An alternative embodiment is characterized by a carrying device with the following features: a horizontal bar, which in its end regions in each case has a second connection unit and at least one rigidly connected to the horizontal rod vertical rod whose upper end face forms the support for the system carrier.

Another alternative embodiment is characterized by a trapezoidal support structure having the following features: a first horizontal bar, a second parallel to the first horizontal rod extending horizontal bar, two diagonal bars and two vertical bars which are connected vertically above the first horizontal bar, which are connected to the second horizontal bar and one diagonal and in this connection area the support is formed.

A further alternative embodiment is characterized in that the support structure is formed as an arcuate support and the support is formed by the vertex of the arcuate support, wherein a particularly advantageous embodiment is characterized in that between the terminal units, a tension band is present to the stress of Vertical stems to prevent bending.

An alternative embodiment is characterized in that the carrying device is designed as a lower-tensioned carrier.

Alternatively, a particularly advantageous embodiment is possible, which ensures particularly high loads, which is characterized in that the support structure is formed as a lattice girder having in its front end region one, in particular two, spaced by the measure spaced, second terminal units and between the lattice girder and the system support at least one vertical element is arranged, which forms the support in its upper Stirnendbereich.

Alternatively, the carrier may rest loosely on the support, screwed thereto or otherwise releasably connected thereto.

In order to ensure a permanently reliable function, a particularly advantageous development is characterized in that in the region of the support means, in particular releasable means for securing the system support against lateral displacement, that is against dodging from the support plane, are available.

A particularly advantageous embodiment, which is structurally simple, allows a simple connection in the support area and ensures a permanently reliable fixation of the support in the support area, characterized in that the means for securing two parallel tabs each having a recess, wherein the recess a hammer head screw is feasible, the hammer head contour can be inserted into a groove provided on the carrier and the tabs in the assembled state overlap the support structure in the region of the support.

Alternatively, a structural design in the support area be designed such that the support has a bearing plate with parallel slots, wherein the clear distance of the slots is slightly larger than the clear outer cross-sectional dimension of the carrier and in the slots wedges are inserted.

A structurally particularly simple embodiment of the means for securing against lateral displacement is characterized in that the support has a bearing plate with two holes arranged one behind the other in the longitudinal direction, wherein the clear distance of the holes in the transverse direction is slightly larger than the clear outside cross-sectional dimension of the carrier and in the holes U-shaped bracket can be inserted or plugged.

It is particularly advantageous to weld together rods of the support device as a unit, wherein the rods themselves can be designed as round tube profiles in an advantageous manner.

A particularly preferred embodiment in terms of practical assembly work is characterized in that the first and second connection unit are designed as wedge head unit with slot and wedge and Gegenanschlusseinheit as annular rosette with recesses and the connection produced by pushing the wedge head unit on the annular rosette followed by wrapping the wedge is. This connection technique is known from the scaffolding and stage system of the applicant and has been proven for decades.

A support structure according to a particularly advantageous embodiment is characterized in that the horizontal bar elements and the diagonal bars and the vertical bar are each detachably connected to each other and in particular formed as a system component of the Layher Allroundgerüstsystems.

It is also possible to form the support structure and the system carrier as a unit that can be handled in one piece.

As the material for the support structure, for example, aluminum or steel can be selected.

Further embodiments and advantages of the invention will become apparent from the features further listed in the claims as well as by the embodiments given below.

BRIEF DESCRIPTION OF THE DRAWING

Fig. 1

schematische Seitenansicht eines als Strangpressprofil ausgebildeten Systemträgers mit Anschlusseinheiten,

Fig. 2

schematische Seitenansicht einer Unterstützungskonstruktion für den Systemträger gemäß Figur 1 mit dreieckförmiger Tragstruktur,

Fig. 3

schematische Seitenansicht des Systemträgers gemäß Figur 1 und der Unterstützungskonstruktion gemäß Figur 2 in an Vertikalstiele einer Bühnenkonstruktion montiertem zustand,

Fig. 4

schematische Detailseitenansicht eines Auflagerbereiches mit Laschen und Hammerkopfschrauben,

Fig. 5

schematische Längsansicht des Auflagerbereiches gemäß Figur 4,

Fig. 6

schematische Detailseitenansicht eines Auflagerbereiches mit einer Auflagerplatte, in die Keile eingesteckt werden können,

Fig. 7

schematische Längsansicht des Auflagerbereiches gemäß Figur 6,

Fig. 8

schematische Seitenansicht einer Unterstützungskonstruktion mit einem Auflagerbereich mit einer Auflagerplatte, in die Bügel eingesteckt werden können,

Fig. 9

schematische Draufsicht auf die Auflagerplatte gemäß Figur 8,

Fig. 10

schematische Seitenansicht eines Bügels zum Einstecken in die Lagerplatte gemäß Figur 9,

Fig. 11a-f

schematische Darstellung des statischen Systems unterschiedlicher Unterstützungskonstruktionen.

The invention and advantageous embodiments and developments thereof are described in more detail below with reference to the examples shown in the drawing and explained. Show it:

Fig. 1

schematic side view of a formed as an extruded system carrier with connection units,

Fig. 2

schematic side view of a support structure for the system carrier according to FIG. 1 with triangular support structure,

Fig. 3

schematic side view of the system carrier according to FIG. 1 and the support structure according to FIG. 2 in a state mounted on vertical stems of a stage construction,

Fig. 4

schematic detail side view of a support area with tabs and hammerhead screws,

Fig. 5

schematic longitudinal view of the support area according to FIG. 4 .

Fig. 6

schematic detail side view of a support area with a support plate into which wedges can be inserted,

Fig. 7

schematic longitudinal view of the support area according to FIG. 6 .

Fig. 8

schematic side view of a support structure with a support area with a support plate into which brackets can be inserted,

Fig. 9

schematic plan view of the support plate according to FIG. 8 .

Fig. 10

schematic side view of a bracket for insertion into the bearing plate according to FIG. 9 .

Fig. 11a-f

schematic representation of the static system of different support structures.

WAYS FOR CARRYING OUT THE INVENTION

In FIG. 1 is a system support 12 of a stage construction shown having a predetermined span S and for a predetermined load P, the in FIG. 1 is shown schematically as a single arrow P is designed. The system carrier 12 is formed as an extruded profile and has on its two outer sides in each case a longitudinally continuous groove 34. In the system carrier 12 not shown pads are suspended from above in the figures, which transmit the traffic load on the system carrier 12. In the respective front end region of the system carrier 12, a connection unit 14 is present. The connection units 14 are also dimensioned according to the occurring traffic load P.

In FIG. 2 a support structure 10 for the system carrier 12 is shown, which also has the span S having. The support structure 10 has a triangular support structure with a horizontal bar 16, at the front end portions of each terminal unit 24 is present, two diagonal bars 18.1, 18.2, which are arranged from the end upwards in opposite directions inclined towards the center, wherein between by the two diagonal bars 18.1, 18.2 formed corner portion of the triangular structure and the horizontal beam 16, a vertical rod 20 is arranged, which is arranged perpendicular to the longitudinal direction of the horizontal bar 16. The connections of the horizontal bar 16, the diagonal bars 18.1, 18.2 and the vertical bar 20 are welded. All said rods are designed as round tubes.

The corner region of the triangular structure, in which the diagonal bars 18.1, 18.2 and the vertical bar 20 collide, is designed as a support 22.1 for the system carrier 12, the upper end face of the vertical bar 20 forming the support 22.1.

In FIG. 3 the use of the support structure 10 is shown in the context of a stage construction, the vertical bars 30, wherein overall in the stage design, the system dimensions B in the width or longitudinal direction and H in the height direction are predetermined. The vertical bars 30 have, in their longitudinal direction in the height system dimension H, raster-wise existing counter-connection units 32, to which the system carrier 12 and the substructure 10 can be connected. The span S is adjusted to the system width B so that the connection can be made easily.

Similarly, the height level H1 of the support 22.1 with respect to the terminal height level of the terminal units 24 to the counter-terminal units 32 is selected so that at connected substructure 10 of the system carrier 12 comes to rest on the support 22.1 and the terminal units 14 of the system carrier 12 can be connected to the corresponding counter-connection units 32.

The terminal units 14 and 24 are formed as wedge head units with slot and wedge and the counter-connection units 32 are formed as annular rosettes with recesses, this connection technology is known from the Layher Allround system of the Applicant and has been used for decades. In this case, the wedge head unit is pushed onto the annular rosette in a simple manner and the connection is produced by subsequent wrenching of the wedge.

In FIG. 3 the system carrier 12 is loosely placed on the support 22.1. By creating this additional support 22.1, the system carrier 12 can easily absorb an increased traffic load P1.

In the FIGS. 4 and 5 is a further embodiment of a support 22.2 shown. In the upper corner point of the triangular structure, a tab 26 is present on both sides on the outside. The tabs 26 have a recess 28 through which the shaft of a hammer head screw 36 can be guided, which is then screwed by means of a nut with the tabs 26. The hammer head contour of the hammer head screws 36 is designed so that it can be inserted into the existing groove 12 on the carrier 34. In the assembled state, in which the tabs 26 fold down and thus the support 22.2 of the support structure 10 is overlapped, this construction is a reliable displacement protection the system carrier 12 against lateral displacement, that is against displacement from the structural plane guaranteed.

In the FIGS. 6 and 7 is a further embodiment of a support 22.3 shown, which also ensures reliable protection against lateral displacement. In this support 22.3 a Stirnlagerplatte 38 is welded to the front end of the vertical rod 20, which extends parallel to the underside of the system carrier 12. The bearing plate 38 has two slots 42 arranged parallel to one another, whose clear inner spacing A is slightly larger than the clear outer cross-sectional dimension of the system carrier 12. Securing against lateral displacement takes place by staking, in particular by inserting a respective wedge 40 into the slots 42.

In FIG. 8 a support structure 10 is shown, which in principle has the same structure as the support structures 10 shown above. However, a support plate 46 is welded on the upper end face on the vertical rod 20, which runs parallel to the underside of the system carrier 12. The support plate 46 has according to FIG. 9 in the longitudinal direction two holes 48.1, 48.2, wherein the bore 48.1 is designed as a round bore and the bore 48.2 as a slot. In these holes 48.1, 48.2 can in a simple manner, the bracket 49 according to FIG. 10 are plugged, whereby a reliable protection against lateral displacement of the system carrier 12 can be ensured.

With regard to a simple assembly or disassembly, it is particularly important that the means for securing a lateral displacement are releasably present in the support area.

In the FIGS. 11a-f are shown schematically different static systems for support structures 10.1 to 10.5.

The support structure 10.1 according to FIG. 11a has a trapezoidal support structure. Between the second terminal units 24, a first horizontal bar 50 is present. Parallel to the first horizontal bar 50, a second horizontal bar 52 is provided below the system carrier 12. Connected to the second connection unit 24 is an ascending and descending diagonal 54.1, 54.2, which in turn is connected to a vertical bar 56, which vertical bar 56 is connected to the first horizontal bar 50 on its underside and forms the end-side upper end region of the support 22 for the system carrier 12 ,

In FIG. 11b a support structure 10.2 is shown, which has a horizontal bar 16 which has in each case a second connection unit 24 in its end region. In the middle of the horizontal bar 16 is perpendicular to this upwardly extending a vertical rod 20.1 connected rigidly, the upper end region forms the support 22 for the system carrier 12.

In the FIG. 11c illustrated support structure 10.3 has seen from the static principle, the same structure as the support structure according to FIG. 2 , However, in this embodiment, it is such that the horizontal bar consists of two horizontal bar elements 16.1, 16.2 consists. In addition, a vertical bar 20.1 and two diagonal bars 18.3, 18.4 are provided, which together form a triangular support structure. The said rod elements are components of the known Layher Allroundgerüstsystem, that is, the horizontal bar elements 16.1, 16.2 are designed as locking elements having terminal units 24, 25 in their end, which are formed as a wedge head unit. The same applies to the diagonals 18.3, 18.4, which also have wedge head units 24, 25 in their end region. The vertical rod 20.1 each has two spaced-apart circumferential rosettes 64 with recesses, wherein the wedge head units of the diagonals 18.3, 18.4 and the horizontal bar elements 16.1, 16.2 can be pushed onto these rosettes 64 in a simple manner and the connection is made by striking a wedge.

The support structure 10.4 according to FIG. 11d has an arcuate support 60, the apex of which forms the support 22 for the system carrier 12. At the same time a drawstring 62 is connected between the two second connection units 24, whereby an additional bending stress of in FIG. 11d not shown vertical stems a stage construction is avoided.

In the FIG. 11e illustrated support structure 10.5 has a lattice girder 80 with a top flange 84, a bottom chord 86 and arranged therebetween vertical bars 88 and diagonal 89. The height of the lattice girder 80 is dimensioned such that it coincides with the system dimension H of the counter-connection units of the vertical stems of a stage construction, so that the upper chord 84 and the lower chord 86 via the second connection units 24 to the counter-connection units of the stems of the stage construction can be connected. On the upper side, in each case a vertical element 82 is connected in the quarter points of the span to the upper flange 84, whose upper front end region respectively forms the support 22 for the system carrier 12.

In FIG. 11f a support structure 10.6 is shown, which is designed as an under-stressed carrier 70. A polygonal upper flange 72 has in the quarter points of the span bearing elements 78 which form the support 22 for the system carrier 12. In extension of the bearing elements 78, three vertical bars 74 are present, which are connected to the underside of a polygonal lower flange 76. The vertical bars 74 can also pass through to the system carrier 12, so that the bearing elements 78 can be omitted.

With the illustrated substructure 10, a further system component is given, for example, for a stage construction which can be easily assembled or disassembled and increases the carrying capacity of the system carrier 12, without the system dimensions of the construction having to be changed.

Claims (22)

1. Support construction (10, 10.1, ..., 10.5) comprising a system load-bearing member (12), posts (30) and a load-bearing device arranged below the system load-bearing member, wherein the system load-bearing member (12) has a predetermined span (S), is designed for a predetermined traffic load (P), is provided in each of its two end regions with a first connection unit (14) detachably connected to the posts (30) and serves for mounting the decking of a stage, podium or scaffold construction or the like, and the posts (30) have complementary connection units (32) which correspond in a predetermined grid system dimension (H) in their longitudinal direction,
   characterized in that

   - the load-bearing device is designed as a separate component,

   - the load-bearing device is detachably connected in its two end regions, via at least one second connection unit (24) in each case, to the complementary connection units (32) which are offset downwardly by the grid system dimension (H), and the load-bearing device in the connected state forms at least one bearing (22) for the system load-bearing member (12),

   - wherein the height level (H1) of the bearing (22) with respect to the connection height level where the second connection units (24) are connected to the complementary connection units (32) is chosen such that the system load-bearing member (12) comes to lie on the bearing (22) and the first connection units (14) of the system load-bearing member (12) are connected to the corresponding complementary connection units (32) which are offset upwardly by the grid system dimension (H) with respect to the second connection units (24).
2. Support construction according to Claim 1,
   characterized in that the load-bearing device has the following features:

   - a horizontal bar (16) which is provided in each of its two end regions with a second connection unit (24) for connection to the complementary connection units (32), and

   - a first and a second diagonal bar (18.1, 18.2) which each extend in opposite directions and which, together with the horizontal bar (16), form a triangular structure,

   - wherein the corner region of the triangular structure that is formed by the two diagonal bars (18.1, 18.2) is designed as a bearing (22.1; 22.2; 22.3) for the load-bearing member (12), on which bearing the load-bearing member (12) rests as soon as the support construction (10) is connected to the complementary connection units (32) of the posts (30).
3. Support construction according to Claim 2,
   characterized in that a vertical bar (20) extending perpendicularly to the horizontal bar (16) is connected between the bearing (22) and the horizontal bar (16).
4. Support construction (10.2) according to Claim 1, characterized in that the load-bearing device has the following features:

   - a horizontal bar (16) which is provided in each of its end regions with a second connection unit (24), and

   - at least one vertical bar (44) which is connected in a flexurally rigid manner to the horizontal bar (16) and whose upper terminal end region forms the bearing (22.1) for the system load-bearing member (12).
5. Support construction (10.1) according to Claim 1, characterized in that the load-bearing device has a trapezoidal load-bearing structure with the following features:

   - a first horizontal bar (50),

   - a second horizontal bar (52) extending parallel to the first horizontal bar (50),

   - two diagonal bars (54.1, 54.2) and

   - two vertical bars (56) which are connected perpendicularly above the first horizontal bar (50) and which are connected to the second horizontal bar (52) and to a respective diagonal (54.1, 54.2), and the bearing (22) is formed in this connection region.
6. Support construction (10.4) according to Claim 1, characterized in that the load-bearing device is designed as a curved load-bearing member (60), and the bearing (22.1) is formed by the summit of the curved load-bearing member (60).
7. Support construction according to Claim 6,
   characterized in that a tension member (62) is connected between the second connection units (24) of the curved load-bearing member (60).
8. Support construction (10.6) according to Claim 1, characterized in that the load-bearing device is designed as an underbraced load-bearing member.
9. Support construction (10.5) according to Claim 1, characterized in that the load-bearing structure is designed as a lattice load-bearing member (80) which is provided in its terminal end region with in each case one, in particular two, second connection units (24) spaced apart by the dimension (H), and at least one vertical element (82) which forms the bearing (22.1) in its upper terminal end region is arranged between the lattice load-bearing member (80) and the system load-bearing member (12).
10. Support construction according to Claim 3,
    characterized in that the horizontal bar (16) is formed by two horizontal bar elements (16.1) which are connected on their inner side to the vertical bar (20.1).
11. Support construction according to one or more of the preceding claims, characterized in that the load-bearing member (12) rests loosely on the bearing (22.1).
12. Support construction according to Claim 1 or 2, characterized in that the load-bearing member (12) is screwed to the bearing (22.2).
13. Support construction according to one or more of the preceding claims, characterized in that means, in particular detachable means, for securing the system load-bearing member (12) against lateral displacement, that is to say against deflection from the load-bearing plane, are present in the region of the bearing (22).
14. Support construction according to Claim 13,
    characterized in that the securing means comprise two parallel straps (26) with a respective aperture (28), wherein a hammer-head bolt (36) can be guided or is guided through the aperture (28), the hammer-head contour of which bolt can be fitted or is fitted into a groove (34) present in the load-bearing member (12), and, in the mounted state, the straps (26) overlap the support construction (10) in the region of the bearing (22.2).
15. Support construction according to Claim 13,
    characterized in that the bearing (22.3) comprises a bearing plate (38) having parallel slots (42), wherein the clear spacing of the slots (42) is slightly larger than the clear outer cross-sectional dimension of the load-bearing member (12), and wedges (40) can be inserted or are inserted into the slots (42).
16. Support structure according to Claim 13,
    characterized in that the bearing (22.4) comprises a bearing plate (46) having pairs of holes (48) arranged one behind the other in the longitudinal direction, wherein the clear spacing of the holes (48) in the transverse direction is slightly larger than the clear outer cross-sectional dimension of the load-bearing member (12), and U-shaped brackets (49) can be inserted or are inserted into the holes (48).
17. Support construction according to one or more of the preceding claims, characterized in that the load-bearing device is designed as a welded construction.
18. Support construction according to Claim 10,
    characterized in that the horizontal bar elements (16.1) and the diagonal bars (18.1, 18.2) and the vertical bar (20.1) are in each case detachably interconnected and are designed in particular as a system component of the Layher Allround scaffolding system.
19. Support construction according to one or more of the preceding claims, characterized in that the load-bearing device is formed from round tube profiles.
20. Support construction according to one or more of the preceding claims, characterized in that the first and second connection units (14; 24) are designed as wedge-head units with a slot and wedge, and the complementary connection unit (32) is designed as an annular anchor plate with apertures, and the connection can be produced by pushing the wedge-head unit onto the annular anchor plate and subsequently driving in the wedge.
21. Support construction according to one or more of the preceding claims, characterized in that the system load-bearing member is designed as an extruded aluminium profile.
22. Support construction according to one or more of the preceding claims, characterized in that the load-bearing device is made of aluminium or steel.

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