DE19703558B4 - Bar equipment for a scaffolding system - Google Patents

Abstract

Bar means (20) for a scaffolding system with
- Bar units (30, 32) having a longitudinal axis (22) and
- In each case in the end region of the bar units (30, 32) arranged terminal units (24, 26) for connection to further components (90) of the scaffold system, wherein
- The rod means (20) is telescopically formed and form the rod means (20) and the further component (90) in the connected state an imaginary plane,
characterized in that
- At least one terminal unit (26) about a rotational axis (28) is rotatably formed, which is arranged perpendicular to the longitudinal axis (22) of the rod means (20) and in the imaginary plane.

Description

TECHNICAL TERRITORY

The The present invention relates to a bar assembly for a scaffolding system with bar units with a longitudinal axis and each arranged in the end region of the bar units terminal units to connect to further components of the scaffold system, wherein the rod means is telescopic and the Bar device and the other component in the connected state form an imaginary plane.

scaffolding systems consist of a variety of standardized components that a simple and reliable Assembly, high stability and economical production guarantee should. About that In addition, a high variability regarding the equipment of buildings with regard to different outer contours required.

STATE OF TECHNOLOGY

Under the name Layher Lightning Scaffold is a scaffolding system known, which has transversely in the frame members, in the height direction are plugged on each other. The horizontal stiffening take over one Kralleneinhängung hinged pads. The Longitudinal will over to be connected diagonal associations guaranteed. Furthermore railing posts are used, which are attached to the stems of the frame members. The connection of the balusters is via as connection lugs trained connection units of the balusters, the hung in key pockets and subsequently be wedged. The diagonal bars are over bolts connected to the stems of the frame elements. To their position assurance There are tilting pins available.

One known under the name Layher-PotzBlitz scaffolding system has a similar Construction of transverse frames and coverings, wherein the coverings over tenon joints anchored to the bars of the diagonal elements.

One known and proven scaffolding system under the name Layher-AllroundGerüst has plug-in standpipes on, which have perforated discs at a predetermined distance. To this Perforated discs can connected at almost any angle longitudinal, transverse and diagonal bars be, these rods each connection heads with own a wedge, which can be pushed onto the perforated disc and by means of of the wedge detachable are fastened.

These scaffolding systems are according to certain grid dimensions built up. this makes possible a rational and thus economical production.

There the one to be equipped structure have the most varied dimensions, it comes in certain Points to a geometric space situation, where the given pitches can not be reached. This is the case, for example, if a facade of two Scaled up sides is, as a rule, whereby at the meeting of the two framework sections screeding a compensatory field must, that not the usual pitches having. Similar Problems also occur in the area of inner corners or outer corners on. Also with the equipment of round structures, Like silos or boilers, compensation fields occur that are not the usual ones Grid dimensions and beyond at relatively large curvatures to problems in the connection area the longitudinal bars, in particular the balusters, can lead.

Become frequent in these areas of equalizing pipes with couplings as Railing used, which, however, felt in economic terms as unsatisfactory is because the installation is complex and therefore expensive.

The DE 31 41 367 A1 discloses a generic length-adjustable scaffold stick. This consists of an outer tube and at least one telescoping slidably inserted inner tube, which can be clamped in the desired extension position by means of a fixed to the inner tube end facing the outer tube clamping means.

The US Pat. No. 2,897,013 describes a scaffold for a scaffold system having in its end a rotatable about a rotation axis terminal unit. The rotation is designed so that the rod can be connected at right angles as a horizontal rod or inclined as a diagonal bar to a vertical stem of the scaffolding system.

PRESENTATION THE INVENTION

Of the present invention, starting from the cited state technology, the technical problem or the task to provide an improved rod device for a scaffold system, the one ensures easy installation in the area of compensation fields and curved scaffolding economic production and easy in the existing scaffolding systems can be integrated.

The Bar device according to the invention for a scaffolding system The type mentioned above is characterized by the features of the independent claim 1 given. Advantageous embodiments and developments are Subject of the dependent Claims.

The Bar device according to the invention for a scaffolding system is characterized accordingly by that at least a connection unit is formed about a rotational axis which is perpendicular to the longitudinal axis the rod device and is arranged in the imaginary plane. By the telescopic training and the rotation of at least a connection unit is a variable adaptation to the respective individual case Compensation field easily possible. Especially with round armaments it comes in the connection area to no difficulties, since even with relatively strong bends the in the connection area predetermined connection directions complied with easily due to the rotation of the terminal unit can be being according to a preferred embodiment of the invention, both terminal units can be rotatably mounted. Especially with balusters for scaffolding constructions this is particularly advantageous. It can be used in the field of reenactments as well in the framework areas, in which there is a normal pitch, the rod device according to the invention be used without problems to the connection problems in particular at Railing rods at relatively large curvatures deal with to be able to. With the rod device according to the invention is also in the inner and outer corner area of scaffolding Installation due to the variable length of the rod device and the rotatability of the connection unit easily possible. This is a major application of the present bar equipment.

A Particularly economically producible development of the invention is characterized by the fact that the Bar means a first bar unit with connection unit and a second bar unit with terminal unit, the bar units are designed as hollow profiles and the clear outside diameter the first bar unit slightly is smaller than the inside diameter of the second rod unit, So that the first rod unit at least partially in the second rod unit insertable is or vice versa. According to this Embodiment variant are the bar units can be pushed into one another. However, it is also possible that the telescopic Bar units do not have a common longitudinal axis, but offset juxtaposed, without sacrificing telescoping must become.

Around the area big curvatures or the inner corner region of scaffolds with regard to the connection rod equipment, especially balusters, to cope easily, is the angle of rotation of the rotatable connection unit, seen in plan view, at least 180 °.

Regarding the manageability and reliable exact geometric positioning and in particular in terms safety in handling during assembly respectively Disassembly of the rod device according to the invention is according to one Particularly advantageous embodiment, a locking device available, the one locking of the bar units in the inserted state and / or guaranteed in any position to each other. The transport of Bar facilities on the site is due to space in pushed together state. In this state, the bar facilities taken at the construction site for assembly purposes of the vehicle, wherein ensures the locking device the existence unintentional retraction or telescoping of the Device is prevented. This is for the safety of the assembly personnel. The same applies to the dismantling of the scaffolding.

A preferred embodiment of the invention is characterized by that the Locking unit one on the outer bar unit fastened nut, in whose thread a screw, in particular Thumbscrew is screwed, the clamping position of the inner bar unit locked.

It is possible, too, that the Locking unit has nubs, which in a predeterminable grid the rod units are present, so that the respective desired length of the Bar equipment set on site at the construction site without any problems can be.

A particularly advantageous embodiment of the rod device according to the invention is characterized by the fact that the first rod unit in regions one parallel to the longitudinal axis has extending bead, in which a projection unit of the second rod unit protrudes. As a result, a relative rotation of the bar units with each other while the telescoping process reliable prevented. In particular with regard to a particularly economical production become the bead and the projection unit by cold deformation the wall of the bar units made. It is special advantageous to design the projection unit simultaneously as an end stop, the maximum relative displacement of both bar units to each other limited.

A particularly structurally simple implementation of the rotatable connection unit is made possible according to the invention in that an outwardly open U-profile element is connected in the region of the rotatable connection unit to the rod unit, having in its flanges holes in which an axle body is rotatably mounted, and this axle body is passed through corresponding holes in the terminal unit. In this case, the axle body may be formed as a rivet.

As already mentioned above, offers the rod device according to the invention special advantages, if it is implemented in a balustrade. there a particularly economical production of the bar unit according to the invention is characterized as a handrail in that the first rod unit and the first terminal unit integrally connected to each other are and represent a part of a serial railing and the second access unit the disconnected terminal unit of the serial railing forms. In this embodiment becomes the rod device according to the invention produced in a particularly economical manner, by - starting from a production railing bar - from this one a connection area is separated. The first bar unit with the integrally connected access unit forms part of the railing bar. At the corresponding to the outer diameter The first bar unit formed second bar unit is in a simple Way the U-profile element welded on the web side and the corresponding holes in the U-profile element and the other disconnected terminal unit of the original one Seriengeländerstabes made. By introducing an axis body, as in example a rivet, then the rotatability of the second Access unit the disconnected terminal unit represents the serial railing, easily guaranteed become.

A particularly preferred embodiment of the rod device according to the invention as a handrail is characterized by the fact that the line units one at a right angle to the longitudinal axis molded nose, in existing on subsequent scaffolding components Keet pockets insertable and detachable by means of wedges are fastened, wherein in an advantageous development the longitudinal axis the lugs substantially parallel to the axis of rotation of the rotatable terminal unit is arranged. Such a design allows easy use the rod device according to the invention as part of the Layher PotzBlitz scaffolding system.

A further advantageous embodiment of the rod device according to the invention is characterized by the fact that the line units each have at least one receiving bearing bore, so that the connection unit on one of the adjacent scaffolding components existing projection unit can be pushed, the Position assurance by a substantially perpendicular to the longitudinal axis the projection unit rotatable tilting pin takes place. Such Embodiment of the rod device according to the invention guaranteed easy use within the Layher Blitz framework system. It can be dispensed with the rotatability of the connection unit, because the perforated disc connections at different angles.

A further alternative embodiment of the rod device according to the invention is characterized by the fact that the line units one connection head each own with wedge, wherein the connection head partially on a Perforated disk of an adjacent scaffolding component postponed and by means of of the wedge detachable can be attached. Such a configuration allows the easy use of the rod device according to the invention in the frame of the Layher Allround Scaffolding System.

Further embodiments and advantages of the invention will be apparent from the claims listed Features and by the embodiments given below. The features of the claims can be combined in any way as far as they are concerned not obviously mutually exclusive.

SHORT DESCRIPTION THE DRAWING

The Invention as well as advantageous embodiments and developments The same will be described below with reference to the drawings Examples closer described and explained. The description and drawing to be taken features can individually for applied to one or more in any combination according to the invention become. Show it:

1 schematic detail top view of a scaffold in the inside corner area,

2 schematic detail top view of a scaffold in the outer corner area,

3 schematic detailed top view of a scaffold with compensation field,

4 schematic detail top view of a round frame with compensation field,

5 schematically side view of a first embodiment of the rod device according to the invention in the partially telescoped state,

6 schematic side view of the rod device according to 5 in the inserted state,

7 schematic view of the rotatable Connecting unit according to the rod device according to 5 .

8th schematic cross section through the rod device according to 5 along the cutting guide AA,

9 schematic detailed section through the rod device according to 5 in reverse withdrawal direction,

10 schematic detailed plan view of the connection region of the rotatable connection unit of the rod device according to 5 .

11 schematic view of the connection of the rod device according to 5 to the Layher lightning scaffold system in the inside corner area,

12 schematic side view of a connection of a rod device according to the Layher PotzBlitz scaffold system and

13 Top view of the connection according to 11 ,

WAYS TO EXECUTE INVENTION

In 1 is detailed a Innenecksituation shown in the scaffolding. From the right, the framework comes in a grid R1, from below in a grid R2. This results for the inside railing rod 19 a pitch A, which differs from the grid dimensions R1 and R2. In addition, there is the problem that the railing rod 19 must be connected at a right angle to the scaffolding area coming from the right.

In 2 An external corner area in the scaffolding is shown schematically. From the right is a grid frame area with the grid R1. From below comes a framework area with the grid R2. This results in a compensation field for the railing rod 19 with a grid spacing A. The covering is simply laid on the adjacent scaffold floorings and secured in this compensation area.

In 3 is a compensation field with the grid dimension A shown schematically, has been started from the left or right with a scaffold with the grid R1.

In 4 is shown schematically a plan view of a scaffold situation, which relates to the installation of a round body. From the right or from the left framework areas come with the grid R1. The result is a compensation field with the pitch A, in particular for the balusters, in addition to compensate for angle differences in the connection area of the compensation field for the rods.

5 schematically shows a side view of a rod device according to the invention 20 , which is used as a railing rod. In this case, components are used from a standard railing rod. A standard railing bar consists of a first bar unit 30 and one in the 5 in the upper part integrally formed terminal unit 24 that has a down-molded nose 50 with rectangular cross-section has. The first bar unit 30 has a longitudinal axis 22 on, to which the longitudinal axis 48 the nose 50 is arranged substantially at right angles. In the opposite end region has originally designed as a series railing rod unit 30 a second connection unit 26 , the axisymmetric to the first terminal unit 29 is trained. To form the rod device according to the invention 20 became the second connection unit 26 separated from the original series railing. At the same time is a second bar unit 32 present, which has a slightly larger inner diameter than the first rod unit 30 , Both bar units 30 . 32 are designed as pipe profiles.

The second bar unit 32 has the same longitudinal axis 22 like the first bar unit 30 so that both bar units 30 . 32 are telescopically arranged one inside the other.

Im in 5 lower end portion of the second rod unit 32 is a U-profile element 80 web side to the second bar unit 32 welded, such that its flanges 82 to the outside. The flanges 82 point perpendicular to the longitudinal axis 22 existing holes in which a rivet 84 is mounted rotatably as Achskörper. At the same time has the second terminal unit 26 to the holes of the flanges 82 coincidentable recesses through which the rivet passes 89 is also conducted. This will be a rotation axis 28 generated at right angles to the longitudinal axis 22 is present and a rotation of the second terminal unit 26 around a rotation angle 34 (please refer 10 ) of at least 180 ° (old grade).

The great advantage of this construction is that a railing rod, which is present as a serial component, for forming the rod device according to the invention 20 can be used. It is only necessary to disconnect the second terminal unit ( 7 ), provided with corresponding holes and a second bar unit 32 provide, on which the U-profile element 80 is welded.

The first bar unit 30 has a bead in its outer wall 36 that are substantially parallel to the longitudinal axis 22 extends and is made by cold working.

The second bar unit 32 owns in the 5 right end of a projection unit 38 , which is present as part circular punching inward and partially into the bead 36 the inside arranged bar unit 30 protrudes.

This projection unit 38 at the same time forms an anti-twist device of the bar units 30 . 32 with each other an end stop for the maximum extraction movement of the first rod unit 30 opposite the second bar unit 32 what's special in 9 is shown in more detail. In 9 it can be seen that the projection unit 38 is designed as an end stop and the upwardly extending wall of the end portion of the bead 36 contacted in extended condition. It should be noted that in 9 the withdrawal direction of the bar unit 30 contrary to the withdrawal direction according to 5 is shown.

In 11 is schematically the connection area of the rotatable connection unit 26 to a vertical pipe handle 90 a framework shown. From both sides become the connection units 24 . 26 with her nose 50 in one on the vertical tube 90 existing wedge bag 78 introduced from above. The connection unit 26 is here by 90 ° relative to the bar unit 32 turned. Subsequently, these terminal units are then by means of the wedge 79 fixed non-positively. This type of connection is used within the Layher Lightning Scaffold System.

12 schematically shows the connection of a terminal unit 56 within the Layher-PotzBlitz scaffolding system in the inside corner area. A vertical stalk 90 a vertical frame has an inwardly projecting Kippstiftbolzen 70 on, on which a tilting pin flap 72 is hingedly connected, such that it assumes a blocking position under the action of its own weight, ie with its cross-sectional dimensions over the outer dimensions of both the upper side and underside over the bolt 70 protrudes. The rotation axis 74 the tilting pin flap 72 is in this case substantially perpendicular to the longitudinal axis of the bolt 70 and substantially parallel to the longitudinal axis 22 the rod device available. The connection unit 56 is in its end region as a flat rectangular cross-section 57 with a receiving hole 58 educated. The diameter of the mounting hole 58 is chosen so large that the connection unit 50 over the Cappstiftbolzen 70 with folded tilting pin flap 72 can be pushed. After pushing on the connection unit 56 falls the tilting pin flap 72 due to their own weight in the 12 shown position, whereby the connection unit 56 safely on the bolt 70 is positioned.

Claims (19)

Bar equipment ( 20 ) for a scaffolding system with - bar units ( 30 . 32 ) with a longitudinal axis ( 22 ) and - in each case in the end region of the bar units ( 30 . 32 ) arranged connection units ( 24 . 26 ) for connection to other components ( 90 ) of the scaffold system, wherein - the rod device ( 20 ) is telescopically formed and the rod device ( 20 ) and the further component ( 90 ) form an imaginary plane in the connected state, characterized in that - at least one connection unit ( 26 ) about a rotation axis ( 28 ) is rotatable, which is perpendicular to the longitudinal axis ( 22 ) of the rod device ( 20 ) and arranged in the imaginary plane. Device according to claim 1, characterized in that - both line units are rotatably formed. Device according to one or more of the preceding claims, characterized in that - the rod device ( 20 ) a first bar unit ( 30 ) with connection unit ( 24 ) and a second bar unit ( 32 ) with connection unit ( 26 ), - the bar units ( 30 . 32 ) are formed as hollow profiles and - the clear outer diameter of the first rod unit ( 30 ) is slightly smaller than the inside diameter of the second rod unit ( 32 ), so that the first bar unit ( 30 ) at least partially into the second bar unit ( 32 ) or vice versa. Device according to one or more of the preceding claims, characterized in that - the angle of rotation ( 34 ) of the rotatable connection unit ( 26 ) is at least 180 ° (old degree). Establish according to one or more of the preceding claims, characterized characterized in that - An arresting unit is present, which is a locking of the bar units in any Position to each other or at least in the inserted state of Bar units guaranteed. Device according to claim 5, characterized in that - The locking unit a fixed to the outer rod unit Nut, in whose thread a screw, in particular wing screw, is screwed, the clamping position of the inner bar unit locked. Device according to claim 5, characterized ge indicates that - the locking unit has nubs. Device according to one or more of the preceding claims, characterized in that - the first rod unit ( 30 ) partially parallel to the longitudinal axis ( 22 ) running bead ( 36 ) into which a projection unit ( 38 ) of the second bar unit ( 32 ) protrudes. Device according to claim 8, characterized in that - the bead ( 36 ) and the projection unit ( 38 ) by cold deformation of the wall of the bar units ( 30 . 32 ) is made. Device according to claim 8 and / or 9, characterized in that - the projection unit ( 38 ) is formed simultaneously as an end stop, the maximum relative displacement of both bar units ( 30 . 32 ) limited. Device according to claim 10, characterized in that - the projection unit ( 38 ) is formed as a partial circle punched. Device according to one or more of the preceding claims, characterized in that - in the region of the rotatable connection unit ( 26 ) to the bar unit ( 32 ) an outwardly open U-profile element ( 80 ) connected in its flanges ( 82 ) Has bores in which an axle body ( 84 ) is rotatably mounted, and this axle body ( 84 ) through corresponding holes in the terminal unit ( 26 ) is passed. Device according to claim 12, characterized in that - the axle body ( 84 ) is designed as a rivet. Device according to one or more of the preceding claims, characterized in that - the rod device ( 20 ) is designed as a railing rod. Device according to claim 14, characterized in that - the first bar unit ( 30 ) and the first terminal unit ( 24 ) are integrally connected to each other and form part of a series railing and the second terminal unit ( 26 ) forms the disconnected terminal unit of the series railing. Device according to one or more of the preceding claims, characterized in that - the connection units ( 24 . 26 ) each at right angles to the longitudinal axis ( 22 ) molded nose ( 50 ) which are connected to subsequent scaffolding components ( 90 ) existing key pockets ( 78 ) and by means of wedges ( 79 ) are releasably attachable. Device according to claim 16, characterized in that - the longitudinal axis ( 48 ) of the noses ( 50 ) substantially parallel to the axis of rotation ( 28 ) of the rotatable connection unit ( 26 ) is arranged. Device according to one or more of claims 1 to 15, characterized in that - the connection units ( 56 ) at least one receiving bearing bore ( 58 ), so that the connection unit ( 56 ) on one of the adjacent scaffolding components ( 90 ) existing projection unit ( 70 ) can be pushed, wherein the position assurance by a substantially perpendicular to the longitudinal axis of the projection unit ( 70 ) rotatable tilting pin ( 72 ) he follows. Device according to one or more of claims 1 to 15, characterized in that - the connection units each with a connection head Have wedge, wherein the connection head in some areas on a Perforated disk of an adjacent scaffolding component pushed and detachable by means of the wedge can be attached.