ES2337776T3 - DEVICE FOR ASSEMBLY OF A TEMPORARY BARREL LENGTH OF A SHELF. - Google Patents

Abstract

The arrangement (10) for extending a required support element (22) from an existing scaffolding level (50) to a scaffolding level (52) yet to be erected take the form of struts (12) which are attachable to the front of the vertical members (26) of the scaffolding level (50), and are provided with connector devices (14, 16, 18, 20).

Description

Device for mounting a stringer temporary railing of a scaffolding.

Technical field

The present invention relates to a scaffolding device with scaffolding floors with uprights verticals, pins, covers and rails of rails for mount a railing rail temporarily necessary of a existing closet floor for a floor yet to be mounted above the first with at least two railing supports that connect with a vertical upright and can be released respectively through joining systems and, at least, with a railing rail telescopic telescope that can be attached, in each case, in its corresponding final zone through a first joint system in the upper end zone with the support of the railing meeting the first union unit and with it the railing beam Temporarily connected, when railing supports are connected with vertical uprights, at a height of predetermined height with reference to the height level of the upper scaffold floor yet for mounting and having the temporary railing stringer a first stringer made as a hollow profile and a second stringer that You can enter or remove from the first crossbar.

Such devices are also called safe. advanced or advanced railings.

Current technique

In the scaffolding systems of Layher-Blitz and Layher-Allround known, the different floors of the scaffold are mounted with modular components The assembly process is then performed starting from the bottom up. Once they have mounted for each respective floor, vertical uprights or vertical racks, pins, covers, stringers of railing and if necessary the diagonals can be hooked on First the cover for the upper floor to be mounted. When he assembler reaches the new floor to build it is necessary to ensure that even in this state there are certain elements of security that offer a support for it. In the systems of mentioned scaffolding advanced supports of railing. That is, when the assembler reaches the "new floor "there are at least railing supports where you can hold a railing rail. This railing, however, has to assemble and disassemble in each level.

Scaffolding systems are known in which they use racks that replace the railings and the diagonals After mounting such a rack, the upper horizontal pin already forms the floor railing top of the scaffolding that has yet to be assembled. The construction of Racks itself is an integral part of the scaffolding. Another is known type of execution in which a rack is also used whose upper horizontal pin forms the advanced railing. This frame fits during mounting on two stringers of handrail already assembled and must be changed next by each floor to guarantee an advanced railing. Both frame constructions are relatively bulky, heavy and therefore expensive to ride. In each case it is necessary use several assemblers in the assembly or disassembly.

In JP 2001 288883 A a system for a scaffolding of the aforementioned type. This system too represents an advanced railing that has a railing bar telescopic For the assembly of the advanced railing, first mount sliding support units in the area upper vertical uprights on a scaffold floor existing. Once a first deck level has been mounted, they introduce the railing stringers from above by sliding them inside the sliding support units. In this state yet There is no railing on the upper floor. Once they have placed the telescopic railing bars the second one is mounted scaffold floor and sliding support units are mounted again in the upper area of the vertical uprights. In the next assembly development the advanced railing is released or its railing bars of the lower sliding support unit and it push up through the sliding support unit upper until reaching the final position of the handrail in the level of the scaffolding above, level that has yet to be mount.

The DE 29902904 U1 and DE 19900113 Al reveal advanced railings which, however, have no telescopic railing bar.

Description of the invention

Starting from the mentioned state of the art the This invention aims at or as a technical problem to resolve, indicate a system of the type mentioned above that allows in a simple way an assembly of an advanced railing of a floor existing for an upper floor to mount, which clearly reduces the cost of assembly for the preparation of the advanced railing, which It can be manufactured economically and does not require that for system assembly must be adapted for scaffolding current serial components.

Another technical problem or objective of the invention consists in indicating a system of the type mentioned above that can be mounted and relocated by an assembler.

The device according to the invention is defined. by the characteristics of independent claim 1. Advantageous configurations and developments are subject to the subordinate claims.

The device according to the invention of the above type mentioned is characterized, therefore, because the stringer of railing has a locking system that prevents them from being able to completely separate the telescopic stringers, having the second telescopic beam a continuous longitudinal groove, existing in the longitudinal groove in the final zone introduced on the inner side a first projection, having the first stringer telescopic on its wall a through groove in its final area oriented to the second crossbar, there is a plug unit that It can be connected to the first stringer and has a second projection that can be introduced through the notch of the first stringer and when reaching the maximum extension length of the telescopic stringers, the first and the second projections collide each.

According to a conditioning especially preferred the telescopic length of the stringer of railing so that you can use the device with different field lengths and also to cover several field lengths of the scaffolding system, remaining Preference field lengths in the range between 2 to 4 m (meters), particularly between 2.07 and 3.07 m (meters).

Due to having planned a stringer of telescopic railing the assembler can mount the railing Advanced without any problem. To this end it is pushed first place on one side of the floor the railing support from the floor existing on a level up being the railing beam already connected to the first union system and remaining there together also during the entire assembly process. After moving the first railing support is also disposed towards up on the other side of the floor the railing support there existing attached to the railing beam on another floor existing as well as a result on the upper floor, which still a stringer must be mounted from the scaffolding system railing with railing supports. During the assembly of a scaffolding system thus assembles the device first in the lower floor, that is in the left vertical upright and right is mounted respectively a railing support attached with The railing. This construction of two railing supports with connected railing stringer then moves through floors in vertical direction during the development of the scaffolding assembly, that is to say, an expensive assembly or disassembly is no longer necessary for each floor.

In order to prevent a complete separation not desired of the two rails of the railing stringer telescopic, which could occur especially during the disassembly, there is the blocking unit that prevents a separation full of the telescopic beam having the second crossbar telescopic a continuous longitudinal groove in direction longitudinal, there is a first projection in the groove longitudinal in the final zone introduced by the inner side, having the first telescopic beam on its wall a notch through, there is a plug unit that connects to the first stringer, plug unit that has a second projection that can be introduced through the notch of the first stringer and where to reach the maximum extension length of the telescopic stringers collide the first and second projection between yes.

The plug unit can be designed as Mode and simple way as elastic pin.

The first and / or second outgoing are formed, preferably, as a rivet which guarantees a economical manufacturing

A preferred conditioning is characterized because the second crossbar has on its outer side a fluted.

To help the extension be done or insertion of the stringers without problems, or to reduce possible the necessary force to carry out the mentioned processes, a preferred execution is characterized in that the second crossbar it rests through a sliding support on the first crossbar, at least in one final zone, especially in both zones late.

A configuration variant with a result Practical especially good is characterized because in the final area of the second crossbar introduced in the first crossbar the support Slider is shaped as a plug attached to the second stringer, cap whose outer wall rests, for example, on the inner wall of the first stringer.

In order to guarantee characteristics of optimal sliding during the assembly process, a development especially advantageous it stands out because the sliding support in the final area of the first crossbar located in the direction of extension It is designed as a guide cap attached to the first crossbar with support surfaces directed inwardly supported on the outer wall of the second crossbar.

As material for the sliding support you can use any material with a low coefficient of friction Sliding.

Due to the telescopic length of the stringer of temporary railing there is no problem to use the "advanced railing" for different field lengths and also to cover various field lengths of the system scaffolding. So it is possible without any problem the assembly or disassembly by an assembler.

The device according to the invention of the above type mentioned is characterized, therefore, by a railing support which can be joined on the front side with a vertical upright of the existing scaffolding floor, support that has a first system of union, a second system of union, a third system of union, a fourth connection system, the first system being arranged union in the upper end zone of the scaffold support and serving to connect the temporary railing beam, being arranged the fourth connection system in the lower area of the support of railing, the third joining system being designed so which in the connection area of the mounted railing beam is you can connect, place, detachablely fit into the stud mounted vertical of the existing floor, and because the distance between the third union system and the first union system has selected so that the temporary railing stringer is finds, with the third connection system connected, at a level of predetermined height relative to the scaffolding floor even by perform, the second joining system being located between the first and third joining system so that you can connect from detachable form in the upper area with the vertical upright assembled from the existing scaffolding floor.

Due to the constructive design and the positioning of the joining units can be done without problem a simple assembly of an advanced railing without require a modification of the construction of the components of existing series scaffolding. The device is possible without any construction modification in known scaffolding systems (eg Layher-Blitz scaffolding systems and Layher-Allround).

An especially preferred configuration is stands out because the first joint system has a projection with rocker pin arranged essentially perpendicular to the longitudinal direction of the scaffold support and to which the Temporary scaffolding stringer has a through groove in its end zone so that the railing beam can be fitted on the projection and that the swing pin ensures the connection of the railing beam under the effect of its own weight.

Another advantageous configuration that guarantees a extremely simple assembly is characterized because the second joining system has two overlapping flange elements or one U-profile unit that can be fitted on the upright vertical mounted with protruding flange elements and because the protruding flange elements each have a notch through and because the detachable union with the vertical upright is possible by driving a key into the notches.

An especially simple realization from the constructive point of view of the third system of union is given because the third joint system has a flange, especially two spaced parallel flanges, which have preference each a first flange area tilted down and a second flange area that follows the first. At case of the Layher-Blitz scaffolding system the flanges can fit easily and easily in the area of connection of existing rail railing. In connection with The Layher-Allround scaffolding system are placed the flanges of way and simple way on the rosettes of the vertical uprights in this scaffolding system. So the geometric position of the vertical amount in each scaffolding system.

An especially preferred configuration that guarantees during assembly simple handling and reliable fixation is characterized because the second connection system It has a protrusion that holds the upright by areas vertical mounted with its rear grip area and because in the area With a rear grip, there is an open down slot can fit on an existing mounting bracket on the scaffold mounted, characterizing a preferred configuration because the area rear grip essentially has a cross section of Graduated circle

An especially advantageous execution in the practical application is characterized because the third system of union has one, particularly two spaced parallel flanges with flange areas that look obliquely down while designed the joint system so that the railing support adopts a vertical mounting position during connection under the sole effect of its own weight.

A particularly simple embodiment from the constructive point of view of the fourth joining system is characterized because it is executed as outgoing, especially as a hollow profile unit, whose final frontal area free is supported, at least by areas, on the outer side of the vertical upright mounted in mounted state of the support of railing.

An alternative configuration especially preferred that guarantees a simple positioning reliable during the assembly process is characterized because the fourth joining system has two separate butt projections that are support each one mounted on the inner side in the scaffolding mounted in the connection area and thus constitute a safe against torsion.

As for a manufacturing especially cost-effective device according to the invention is especially advantageous perform the third and second joining system in one piece. Here, an especially preferred configuration shows important technical advantages for assembly that are characterized because the third joining system and / or the fourth joining system have area contour of the contact cross section that is supported by areas dragged in a state mounted on the contour exterior of the vertical upright mounted.

Another especially advantageous configuration of device according to the invention that is preferably used in the known Layher-Allround scaffolding system in the that the vertical uprights of the scaffolding system have, in longitudinal direction, rosettes with recesses in a lattice default and that constitutes an independent variant that characterized because it has a support railing support that can be connect on the front side with a vertical floor stud existing closet, support that has a first joint system, a second union system and a third union system, where the first joining system is arranged in the upper end zone of the railing support and serves to connect the crossbar of temporary railing, the third joining system is arranged in the lower end zone of the railing support, the second system of union is shaped so that it can fit over the connection rosette and connect detachably by means of a key with the apex of the cone, the third system of union is performed as an overhang with a pin that looks down and can be placed inside a notch of a connecting rosette corresponding the distance between the second and third system of junction to the rosette grid and the selected distance between the second and the first joining system so that the crossbar Temporary railing is located at a height predetermined with respect to the scaffolding floor yet to be carried out at be the third connection system connected.

With such a device you can make an advanced railing without any problem without having to modify the base scaffolding system Layher-Allround, advanced railing that can assemble or disassemble without problem.

A preferred configuration is characterized because the key is held securely at the apex of the cone.

An alternative configuration that guarantees for assembly staff especially easy handling during assembly or disassembly it is characterized in that the key it is arranged in the railing support in a movable way in longitudinal direction Here you increase the security of the "advanced railing" during assembly or disassembly according to a especially preferred design because the key has been connected a longitudinal displacement piece designed of way that a person, who is on the field of scaffolding to ride, you can grab it.

Other types of configuration and advantages of the invention results from the characteristics further indicated in the claims as well as the execution examples indicated then. The characteristics of the claims may combine with each other randomly as long as they are not excluded obviously with each other.

Brief description of the drawings

The following are described and explained more in detail the invention and embodiments and advantageous developments of it with the help of the examples represented in the drawing. The characteristics that can be seen from the description and from the drawing can be applied according to the invention individually separately or in any combination of several. They show:

- Figure 1, a schematic detail of a perspective view of a scaffold with an advanced railing of two scaffold studs and a telescopic railing beam arranged between the previous ones, having the support of railing four joining systems;

- Figure 2, a schematic side view of a railing beam according to figure 1;

- Figure 3, a longitudinal view schematic of the railing beam according to figure 2;

- Figure 4, a schematic representation of the third connection system according to detail A of Figure 2;

- Figure 5, a schematic section through the railing support according to the direction of the B-B cut of figure 2;

- Figure 6, a schematic representation of the fourth connection system according to detail B of Figure 2;

- Figure 7, a schematic section through the railing support according to direction of the A-A cut of figure 2;

- Figure 8, a schematic section through the railing support according to figure 2 along the direction of C-C cut;

- Figure 9, a schematic side view of the detail D of the railing support according to figure 2;

- Figure 10, a schematic view of the detail D, perpendicular to the view according to figure 9;

- Figure 11, a schematic side view of the telescopic railing beam according to figure 1;

- Figure 12, a schematic view of the detail Z of the railing beam according to figure 11, partially  in a cut state;

- Figure 13, a schematic detail view of the railing beam according to figure 11 in the direction of the arrow F;

- Figure 14, a schematic section according to cutting direction D-D of figure 12, having represented only the railing rail inserted;

- Figure 15, a schematic detail view of the railing beam according to figure 11 according to detail X;

- Figure 16, a schematic detail view partially in section of the railing beam according to figure 11 according to detail Y;

- Figure 17, a schematic detail view of the outer railing beam according to figure 11 in the direction of arrow E;

- Figure 18, a longitudinal view schematic of a plug unit with projection;

- Figure 19, a schematic side view of the plug unit according to figure 18;

- Figure 20, a schematic side view in the area of the third and fourth joining system during assembly in a Layher-Allround scaffolding system;

- Figure 21, a schematic side view in the area of the third and fourth joining system during assembly in a Layher-Blitz scaffolding system;

- Figure 22, a schematic side view of the end area of the railing stringer inserted with stopper Teflon placed;

- Figure 23, a schematic side view of a second example of the execution of a railing support, especially suitable for the known scaffolding system Layher-Blitz;

- Figure 24, schematic view from top, side and longitudinal detail K according to figure 23;

- Figure 25, a top, side view and longitudinal of detail L according to figure 23;

- Figure 26, a top, side view and longitudinal of detail M according to figure 23;

- Figure 27, a schematic perspective of the detail L in assembled state with scaffolding;

- Figure 28, a schematic perspective of the M detail in assembled state with scaffolding;

- Figure 29, a schematic view of a third example of running a railing support, especially  suitable for a scaffolding system Layher-Allround;

- Figure 30, a schematic view from top, side and longitudinal detail P according to figure 23;

- Figure 31, a schematic view from top, side and longitudinal detail O according to figure 23;

- Figure 32, a schematic view from top, side and longitudinal detail N according to figure 23;

- Figure 33, a schematic view of a fourth example of the execution of a railing support, particularly suitable for a Layher scaffolding system Allround;

- Figure 34, a schematic view from top, side and longitudinal detail S according to figure 23;

- Figure 35, a schematic view from top, side and longitudinal detail R according to figure 23.

- Figure 36, a schematic view from top, side and longitudinal detail Q according to figure 23;

- Figures 37a) to e), schematic views of detail of a section of the scaffolding in different mounting states using an advanced railing;

- Figure 38, a schematic side view of detail E according to figure 11 with a sliding support piece additional;

- Figure 39, a sector of detail in schematic perspective of a known scaffolding system of Layher-Allround using a railing advanced in an intermediate state of assembly and

- Figure 40, a sector of detail in schematic perspective of a known scaffolding system of Layher-Blitz using an advanced railing in an intermediate state of assembly.

Methods for carrying out the invention

In figure 1 it is represented schematically a detail of a scaffold seen in perspective, in which they have already assembled two floors of scaffolding 49, 50. Each floor of scaffolding 4 9, 50 with a field length L1 is composed of systematic components of scaffolding, ie of vertical uprights 26 arranged respectively to the left and to the right or from racks vertical, a railing rail 24 arranged between the uprights and connected to the left and right with the uprights vertical 26, with longitudinal latches not shown more in detail and with a bottom cover 54 fitted in each case between two rails of the railing perpendicular to the plane of splice of figure 1.

As soon as the second floor has been mounted 50 of Figure 1 a top cover 56 is mounted and can be assemble the next floor 52 to perform. In this state there is no moment no safety element on the floor of scaffolding 52 a mount.

These security features are provided with a device 10 shown in figure 1 which is composed of two railing supports 12 that can be connected respectively with the vertical upright 26 already assembled and with a telescopic beam of railing 22 arranged between the previous ones.

For reasons of a better understanding it has turned in 90º (sexagesimal degrees) to the right the support of railing 12 shown on the right in figure 1 and the support of railing 12 existing to the left of figure 1 at 90º (sexagesimal degrees), that is, in practice, the supports of railing 12 are in view according to figure 1 immediately ahead of vertical uprights 26, that is on the side of the vertical uprights 26 directed towards the observer.

The assembly of the device10 or its realization by floors during the development of the mounting.

The railing support 12 represented in the Figures 2 and 3 have a continuous round tubular profile 13 from the top to bottom. Railing support 12 it has from the top to the bottom a first, second, third and fourth joining system 14, 16, 18, 20. The first system connection 14 is used to connect the railing beam 22. The second, third and fourth joining system 16, 18, 20 serve for connection with the vertical upright already mounted on a floor 50 scaffolding.

The first joining system 14 arranged in the upper end zone has been represented in more detail in the Figures 9 and 10. In the upper end zone of round tube 13, a pressure piece 28 is inserted into the round tube 13 that has a flat area 29 that runs upwards with which has attached a flange 36. Perpendicularly to flange 36 or to the longitudinal direction of the round tube 13 has formed a overhang 30 in whose free end zone a pin has been connected tilting 32 that is placed transversely to the protrusion 30 under the Effect of your own weight.

A simple connection of a telescopic railing railing 22 because it has in each case in its final area according to figure 11 a final piece 38 inserted under pressure which also ends in a flat area 39, a through groove 34 arranged in the flat area 39 whose inner diameter is chosen so that the railing beam 22 on shoulder 30. Once fitted the connection position of the railing rail 22 by the swinging pin 32.

The second joining system 16 is located shown in more detail in figure 8. A piece of U-profile 40 through an extension element 41 perpendicular to the longitudinal axis of round tube 13, part U-profile 40 that can be fitted to the vertical upright 26 where the flange elements 42 protrude from the piece of U-profile 40 above vertical upright 26 and existing in this outgoing area of flange elements 42 in each case a groove 44 in the form of a groove so that you can insert a cotter pin 46 into the notches 44 of so that a tightening joint is achieved between the profile piece at U 40 and vertical upright 26. The distance A1 of the axis length of round tube 13 and longitudinal axis of the upright Vertical 26 is indicated in Figure 8 with A1. It has been sized the same so that, considering the design of the third and fourth joining system 18, 20 described below, the railing support 12 can be assembled essentially parallel to the vertical upright 26.

The third joining system 18 represented in Figures 4 and 5 have two parallel spaced flanges 60, joined by the outer side with the round tube 13, flanges that they have a first zone 62 that runs obliquely down is say towards the vertical upright 26 and a second zone 64 that runs parallel to round tube 13. Approximately in the center of the first flange zone 62 has welded a sheet of reinforcing soul 68. The free inner distance of the flange 60 is only very little greater than the outer diameter of the vertical upright 26.

The fourth joining system 20 is represented in figures 6 and 7. The fourth joint system 20 is designed as projection 21 (spacer tube) connected perpendicularly to the axis length of round tube 13, the size having been length L of the spacer tube so that the free front side of the spacer tube is supported in the assembled state of the support of railing 12 by zones on the outer side of the vertical upright 26.

The height of the railing support 12 at be the support 12 connected with the vertical upright 26 and therefore the height dimension H of the temporary railing rail 22 is determined by the position of the third joint system 18. It is that is, the third connection system 18 is connected, in the connection zone of railing beam 24 mounted, with vertical upright 26 mounted. This position is predetermined in the corresponding scaffolding system Depending on the provision of the third connection system 18, the second connection system is arranged in longitudinal direction of railing support 12 with a distance A2 (Figure 2) which ensures that the second joining system 16 can connect below top cover 56 (see figure 1) with the vertical upright 26 of the existing closet floor 50. From the same way the distance A3 of the fourth joint system is determined 20 with the third joint system 18 according to the condition that the fourth connection system 20 rests on vertical upright 26 below the railing beam 24 already mounted.

The distance A4 of the first joining system 14 against the third joint system 18 is chosen so that the railing beam 22 is arranged above the deck upper 56 as an integral part of the advanced railing at be the railing support 12 mounted on a height elevation H (see figure 1), distance corresponding to the prescriptions of security.

The connection of the third connection system 18 in known scaffolding systems Layher-Allround It is schematically represented in Figure 20. The connection of the railing beam 24 of a 50 floor already mounted with the upright vertical 26 is performed by means of the known closing technique in key. In the front end area of the railing rail 24 is has connected a cone vertex 87 that has an open slot forward that can be fitted to rosette 86 attached to the stud vertical 26. Rosette 86 has through grooves that can be matched with an existing through groove in the cone vertex arranged perpendicular to the groove so that the connection / connection can be achieved by entering a key 88 to blows. As you can see from figure 20, the third joint system 18 is connected so that the second area 64 flange rests on rosette 86 with its lower front end on the top inside. The front outer side of the fourth joining system 20 is supported at the same time in the outer part in the vertical upright 26. If the second system of junction 16 is not yet connected, it is still possible to swing the railing support 12 somewhat forward until the second area 64 collision with cone vertex 87 which facilitates assembly during the coupling or decoupling operation.

The coupling situation of the third system of union 18 within the framework of the known scaffolding Layher-Blitz is schematically represented in Figure 21. On this prefabricated scaffold, the spars of scaffolding 24 through a ledge 48 directed towards down on 40 hook recesses in the upright vertical 26. As you can see from Figure 21, the geometry of the third joint system 18 as regards the first flange area 62 and second flange area 64 is designed so that the second area flange 64 hugs behind the already mounted area of the crossbar railing 24, that is to say in the example it rests on the projection 48, and therefore as a result a simple construction is performed of coupling.

In figures 11 to 17 it has been represented of schematic way the design of the temporary telescopic stringer of railing 22.

The railing stringer 22 has a first stringer 70 made as round tubular profile. Within or from this first stringer 70 a second can be inserted or removed stringer 72, which also has a round tubular profile and is provided with an outer striatum surrounding it in the direction longitudinal.

In order to prevent a complete extraction of the second crossbar 72 of the first crossbar 70 a lock unit described below. The second stringer 72 first has a groove 74 in the direction longitudinal. In the final area of the insertion side of the groove 74 a first projection 76 formed as a bollard has been arranged. He first stringer 70 has at the same time in its final zone of insertion into the wall a through groove 78. Once it has been inserted during the manufacture of the railing beam 22 the second stringer 72 on the first stringer 70, a unit is used insert 80 designed as an elastic pin that has a peripheral contour of graduated circle and can fit well by widening on the second crossbar 70 (??). The same time has the insertion unit 80 a projection 82 oriented to the interior that can be passed through notch 78. The length of the second projection 82 is sized here so that penetrates into the groove 74. Once the insertion unit 80 on the first stringer 70 in the area of the notch 78 the second stringer 76 can only be removed until the first projection 76 collides with the second projection 82. The second projection 82 is also designed as a roblon.

In order to improve the characteristics of sliding of the second crossbar 72 into the first crossbar 70 according to the exemplary embodiment of figure 22, a Teflon plug 84 in the fitted front end zone of the second stringer 72, Teflon plug 84 that rests with its outer wall on the inner wall of the first stringer 70. You can also use a sliding support element of another design.

The following explains in more detail the mounting of device 10, that is of an advanced railing, with the help of the representations of figure 1 and figures 37 a) to e).

After assembling the lower floor of the scaffolding 49 a cover 54 is fitted on top and prepared in the floor the device 10 composed of two railing supports 12 and the telescopic handrail 22. It is now possible to connect the device 10 with both sides of the floor 49. For this purpose it fits the third connection system 18 in the connection area of the crossbar of railing 24 already mounted on vertical upright 26 and the second connection system 16 is coupled with vertical upright 26 with support of a key 46. This is done on both sides of the lower floor of scaffolding 49. This state is represented in the figure 1 with railing support 12 indicated on the right with stripes and the railing support 12 indicated on the left with continuous stroke. In this state it already exists for the assembler, who has to work at continuation at level N1, a temporary railing rail 22 with railing supports 12.

If the second floor 50 of the scaffolding of figure 1 and the upper cover 56 has been fitted in level N2, the device 10 moves up without being it is necessary to disassemble it or require a second assembler. He assembler located on level N loose according to figure 1 the second connection system 16 of the vertical upright 26 on the right of figure 1. This is possible from level N1 because the second joining system 16 is coupled directly below the level N1 with vertical upright 26. The assembler can be attached (arrow l) then moved up the right handrail support 12  in the direction of the arrow l at the height of a floor, decoupling the third union system 18, first fitting the third connection system 18 in the connection area of the crossbar to be mounted the railing 24 of the 50 scaffold floor mounted and then key the second joining system 16 below the cover upper 56 with vertical upright 26. This process is repeated exactly on the side of the left support of the railing 12 (arrow ll). Then it exists for the floor of scaffolding 52 even by mount an advanced railing with railing rail 22 and protruding railing supports 12.

With the railing telescopic beam 22, you can use the device 10 on flooring without any problem scaffolding with different widths. To guarantee a railing advanced in the course of successive assembly is only it is necessary to move the railing supports 12, while the railing beam 22 is still mounted on the support of railing 22.

It is also possible to couple with the support of railing several spars of railing 22 spaced apart. For for this purpose it is only necessary to connect more connection systems with railing supports 12.

It is also possible for the railing beam Do not be telescopic. It is not in this case any kind of Execution of the invention. For device placement, without However, two releasers are then required. parallel left or right handrail support respectively and move it up.

In figure 23 a second is represented execution variant of a railing support 200 especially suitable for use in a known scaffolding system Layher-Blitz In the upper end zone there is a first union system 14 designed, as in the case of support of handrail 12 according to figure 2, as tilting pin 32 the which is directly coupled to the outer wall of the tube round 13 through a cantilever element 122.

In the lower end zone of Figure 23 it has been connected a third and fourth connection system 100, 110 through cantilever elements 104, both joining systems 100, 110 being made in one piece. Both systems 100, 110 have seen from above a U-shaped cross section contour, the nerve having a semicircle shape and representing this one a contour cross section support area 120 for the vertical upright 26 mounted scaffolding.

The third joint system 100 has two areas flange 102 inclined downwards (inclination approx. 45º (degrees sexagesimal), the geometry of the third joint system 110 being designed so that due to the railing support's own weight 200 it automatically adopts a vertical mounting position  of tightening when fitting the third joint system 100 on the crossbar of railing 24 to assemble from the existing scaffolding.

The inner contour of the contour zone of support cross section 120 is located in this state on the outer contour of the vertical upright 26 mounted on the scaffold. The fourth connection system 110 has two support projections 112 distanced parallel looking forward, outgoing 112 that they protrude in a mounted state above the vertical upright 26 assembled from scaffolding and constitute an additional insurance against the torsion as they rely on the inner side in the construction of existing coupling 108 (see figure 28) for stringers of railing 28 of the existing scaffolding.

The railing support 200 is represented in state mounted in detail in perspective in figure 28. The areas inclined flange 102 of the third joint system 100 extend above railing rails 24 mounted on scaffolding existing. The railing stringers 24 are coupled with the vertical upright 26 mounted on the existing scaffold through a so-called railing box 108. The support projections 112 of the fourth connection system 110 is supported laterally on the box railing 108 so that in total you get insurance against torsion of the railing support 200.

Between the third joint system 100 and the first connection system 14 a second connection system 90 has been coupled with the round tube 13 through a projection 92. At the end free of the projection 92 a rear grip zone is connected 94 which has a semicircular cross section seen from above. In the free end zone of the rear grip zone semicircular 94 there is a slot 96 open downwards.

The coupling of the second connection system 90 with the scaffold in assembled state it is represented in figure 27 in detail perspective. On the vertical upright 26 of the scaffolding existing a 96 mounting bracket has been welded in the corner upper to form a frame with a crossbar 27. In the corner of the mounting bracket exists a notch 25. In this notch 25 is inserted from above the free end of the rear grip area 94 of the second joint system 90 and is fits through slot 96 on mounting bracket 98. The rear grip area 94 simultaneously surrounds areas in drag the outer contour of the vertical upright 26 mounted. In total it results in a good drag connection so that guarantees reliable operation and yet you can mount or disassemble easily.

In figures 23 to 26, the distance of round tube 13 from railing support 200 in front of vertical upright 26 mounted.

In figures 29 to 32 a third is shown Execution example of a railing support 300 suitable for your use in known scaffolding systems Layher-Allround. The railing support 300 has a continuous round tube 13 whose upper end zone has been coupled a first connection system 150 with a tilting pin 32 corresponding to the first joint system 14 of the support of railing 200. In the lower end area of the railing support 300 a third connection system 140 has been coupled which has a overhang 142 directed outward in whose free end zone a pin 144 that projects downwards has been connected.

A second joint system 130 is coupled with round tube 13 in a spaced R dimension upward facing the third joint system 140, second system 130 which has a cone vertex 132. The cone vertex 132 has a slot 136 open forward so that the vertex of cone 132 can be fitted onto a coupling rosette 162 (see figure 39). Coupling rosette 162 has through notches. The tightening coupling that can be dropping is done by hitting a wedge 134 safety pin existing at the apex of cone 132. This type of connection corresponds in the scaffolding to the well-known technique of key closure.

The distance A5 between the second system of junction 130 and the first junction system 150 is sized so that the first union system 150 adopts, with a support of handrail 30 coupled with a vertical upright 26.1 mounted (see Figure 38), a height dimension H corresponding to the height of scaffolding floor railing yet to be assembled.

In figures 33 to 36 another type is represented of execution of a railing support 400 that essentially has the same design as railing support 300. The same components Constructive have the same reference and are not explained again. The first joint system 150 and the third joint system 140 correspond to the joining systems already explained with the help of Figures 30 and 32.

Unlike railing support 400 according to Figure 29 there is a second connection system 160 which also it has a cone vertex 132 with groove 136, and it has, however, a cone 160 that is not attached to the cone vertex so unmissable but exists in the tube 13 longitudinally movable to through a longitudinal displacement unit 166. The unit of longitudinal displacement 166 has an upper sleeve 167, a central bushing 168 and a lower bushing 169. The bushes surround the round tube 13 and rest on it with displacement longitudinal. The bushings are coupled to each other by a bar 170. The wedge 164 is connected with the central bushing 168 which Something is found above cone vertex 132.

Below cone vertex 132 is the lower bushing 169. The upper bushing 162 is left arranged in the upper end area of the railing support 400 of so that, when the railing support is mounted, the bushing top 167 can be comfortably reached by an assembler that found on the upper level of the scaffolding. Railing support 400 offers, in front of railing support 300, the advantage of security that the assembler to release wedge 164 is in a secure position virtually erect, while, for the opposite, to release the wedge 134 of the second joint system 130 of the railing support 300 the assembler has to tilt much.

In figure 39 it is represented in perspective of detail an intermediate state of mounting an advanced railing with use of the railing support according to figure 2 9 spanning two fields of scaffolding. The base scaffold is formed by the well-known Layher-Allround scaffolding system. Be they have already assembled two floors of scaffolding 50, 49. For the floor of the Scaffolding 52 still to be assembled, a railing must be provided intends to ride from the existing upper floor 50. In the representation according to figure 39, the railing support 300 of the right is still coupled with vertical upright 26.1 lower. The left 300 railing support is already found coupled at the top in the upper vertical upright 26.1 on the left For this purpose the second system has been connected of union 130 with the upper rosette 162 of the vertical upright 36.1 by means of wedge 134 and cone vertex 132. At the same time hooks the pin 144 of the third joint system 140 into a notch of rosette 162 of vertical upright 26.1 arranged below and spaced in a plot dimension R. The support of central railing 300 according to figure 39 has been shown of schematic mode disassembled from the vertical upright 2 6.1. Through a simple sliding up of the central railing support 300 and connection with the corresponding upright vertical post 26.1 you can take the railing beam 22 to be mounted up to the level H height for the left field of the scaffold. It is not necessary release the railing beam 22 for this because of its telescopic capacity can be performed without problem a Length modification during the assembly process. One time the central vertical support 300 is connected at the top of the central vertical upright 26.1, is released next during assembly the railing support 300 represented to the right in figure 39 and also connects on the upper side in the right vertical upright 26.1.

Figure 40 shows the same mounting status for railing support 200 according to figure 23 using as the scaffolding base system the known scaffolding system Layher-Blitz For mounting the support of railing 32 the third joint system 100 is suspended in the area for coupling a railing beam 24 already mounted on the vertical support 26 with its oblique flange area 102, inserting the same time the second joint system 90 in the notch of the mounting bracket 98 and a trailing closure is obtained fitting slot 96 onto mounting bracket 98. The protrusions of contact 112 of the fourth joint system 110 surround the housing connection arranged in the coupling area for the stringers of railing 24 so that insurance against the torsion of railing support 200 in assembled state.

A side view is shown in figure 38 detail of a position variant for the telescopic beam of railing 22 with its first crossbar 70 and its second crossbar 72. The representation essentially corresponds to the representation according to figure 12. The same construction components carry the Same references and are not explained again. The variant of Execution represented improves the telescopic capacity of the two stringers Thus it has been placed in the extreme area of the first crossbar 70 a guide cap 85 and has been coupled through the unit to fit 80 protruding from the final contour of the first stringer 70 and it has in this area support surfaces 89 that protrude something inwards and rest on the outer wall of the second crossbar 72. As a guide cap material, a material with a very low slip friction coefficient, What is the case especially with Teflon. In connection with the sliding support unit at the other end of the second stringer 72, that is, for example, the Teflon plug 84 according to the figure 22 a telescopic operation of the stringer of railing 22 extremely soft.

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References cited in the description

The list of references cited by the applicant is only for the utility of the reader, not forming part of the European patent documents. Even when the references have been carefully collected, cannot errors or omissions excluded and the EPO rejects all responsibility In this regard.

Patent documents cited in the description

JP 2001288883 A [0005]

DE 19900113 A1 [0006]

DE 29902904 U1 [0006].

Claims (25)

1. Device (10) for a scaffold with flooring scaffolding (49, 50, 52) with vertical uprights (26), latches, covers (54) and railing stringers (24) to mount a necessary railing beam (22) provided temporarily on an existing closet floor (50) for a scaffolding floor upper (52) to be mounted and still to be done with - at least two railing supports (12) detachable in a vertical upright (26) respectively above joining systems (16, 18, 20; 90, 100, 110; 150, 130, 140; 160) and - at least one temporary telescopic beam (22) that can be coupled respectively in its temporary end zone with the support of railing (12) through a first system of junction (14; 150) in the upper end zone, - meeting the first joining system (14; 150) and, therefore, the temporary railing beam (22) coupled, with railing supports (12) connected to the uprights vertical (26) at a height height (H) predetermined with respect to of the height level (N2) of a scaffold floor (52) higher still by mount and having the temporary railing beam (22) a first stringer (70) made as a hollow profile and a second stringer (72) that can be introduced or removed from the first crossbar (70) sliding it, characterized because - the railing beam (22) has a locking system (66) that prevents the telescopic stringers (70, 72) can be completely separated, having the second crossbar telescopic (72) a continuous longitudinal groove (74), - in said longitudinal groove (74) of the area end inserted inside, there is a first projection (76), - the first telescopic beam (70) has in the wall of its end oriented to the second crossbar (72) a through groove (78), - a plug unit (80) is provided attachable to the first stringer (70), said plug unit having (80) a second projection (82) that can be introduced through the notch (78) of the first crossbar (70) and - when telescopic stringers (70, 72) are extend to reach the maximum extraction length, the first and second projections (76, 82) collide with each other. 2. Device according to claim 1, characterized in that the telescopic length of the railing beam (22) is chosen such that the device can be used with different field lengths (L) and even along several field lengths of the system scaffolding. 3. Device according to claim 2, characterized in that the field length is in the range of 2 to 4 m (meters), particularly 2.07 to 3.07 m (meters). Device according to claim 1, characterized in that the plug unit (80) is made as an elastic pin. 5. Device according to claim 1 or 4, characterized in that the first and / or second projection (76, 82) are constructed as a bolt. 6. Device according to claim 1 characterized in that the second stringer (72) has a groove in its outer part. Device according to one or more of the preceding claims, characterized in that the second crossbar (72) is supported, at least by one end, especially by both ends on the first crossbar (70) above a sliding support unit. 8. Device according to claim 7, characterized in that the sliding support unit has a material with a low coefficient of friction to slip, especially synthetic material or Teflon. Device according to claim 8, characterized in that at the end of the second crossbar (72) inserted in the first crossbar (70), the sliding support unit is formed as a plug (84) connected with the second crossbar (72), the outer wall of cap (84) supports by zones in the inner wall of the first stringer (70). A device according to claim 7 or 8, characterized in that at the end of the first stringer (70), located in the extraction direction, the sliding support unit is formed as a guide cap (85) connected with the first stringer (70) with support surfaces (89) directed inwards that rest on the outer wall of the second crossbar (72). Device (10; 200; 300) according to one or more of the preceding claims characterized in that it has a railing support (12; 200) coupled in a vertical upright (26) of the existing closet floor (50) with - a first connection system (14), - a second joining system (16; 90), - a third connection system (18, 100), - a fourth connection system (20, 110), where, - said first joining system (14) is arranged in the upper end area of the railing support (12) and serves to couple the temporary railing beam (22), - said fourth joining system (20, 110) is arranged in the lower end area of the railing support (12), - said third joining system (18, 100) is designed so that it can be assembled detachably or fit or suspend in the coupling area of the crossbar railing (24) to be mounted on the vertical upright (26) mounted on the existing floor (50) and distance (A4) between the third system of union (18, 100) and the first joint system (14) is chosen so that the temporary railing beam (22), being the third connection system (18, 100) connected, is at a level of height (H) predetermined with respect to the scaffold floor (52) still to ride, - said second joining system (16, 90) is positioned between the first and third joining system (14, 18, 100) so that it can be detachably connected in the area upper on the vertical upright (26) mounted on the closet floor existing (50). 12. Device according to claim 11, characterized in that the first connection system (14) has a projection (30) with tilting pin (32) arranged essentially perpendicular to the longitudinal direction of the railing support (12) and because the temporary railing beam (22) has at its end a through groove (34) so that the railing beam (22) can fit into the projection (30) and the tilting pin (32) ensures the coupling of the railing beam (22) by effect of its own weight. 13. Device according to claim 11, characterized in that the second joint system (16) has two overlapping flange elements (42) or a U-profile unit (40) that can (n) fit on the mounted vertical post (26) by means of said flange elements (42) superimposed and each of said flange elements (42) superimposed with a through-cut (44) and the removable connection with the vertical upright (26) being provided by striking a wedge (46) in the notches (44) when the U-profile unit is fitted. 14. Device according to claim 11, characterized in that the second connection system (90) has a projection (92) that grabs behind the vertical upright (26) mounted with a rear grip area (94) and because in the grip area rear (94) is provided a groove (96) open downwards that can be fitted in a mounting bracket (98) existing in the mounted scaffold. 15. Device according to claim 14, characterized in that the rear grip area (94) essentially has a partially circular cross-section. 16. Device according to claim 14, characterized in that the third joint system (18, 100) has one, especially two parallel flanges (60, 102) spaced apart with flange areas (32) inclined downwards, said joint system being ( 18, 100) designed so that the railing support adopts a vertical mounting position during coupling only by the effect of its own weight. 17. Device according to claim 11, characterized in that the fourth connection system (20) is designed as a projection (21) whose free front area in the assembled state of the railing support (12) is supported, at least by areas, on the side exterior of the vertical upright (26) mounted. 18. Device according to claim 17 characterized in that the fourth connection system (110) has two support projections (112) spaced each of which in the assembled state respectively rest on the inner side of the scaffold mounted in the connection area, forming thus a torsion insurance. 19. Device according to claim 16, 17 or 18, characterized in that the third connection system and the fourth connection system (110) are made in one piece. 20. Device according to one or more claims 16 to 19, characterized in that the third joint system (100) and / or the fourth joint system (110) has a support cross-sectional contour (120) which in the mounted state rests on the external contour of the vertical upright (26) mounted by areas in accordance with shapes. 21. Device according to claim 20 characterized in that the third joint system (100) and the second joint system (110) viewed from above essentially have a U-shaped cross-sectional contour, forming the core of the U-shaped cross-section. the support cross section contour (120). 22. Device according to one or several claims 1 to 10, the vertical uprights (26) of the scaffold mounted in the longitudinal direction coupling rosettes (162) with notches with a predetermined weft measure characterized in that - has a scaffolding support (300,400) attachable on the front side in a vertical upright (26) of the scaffolding floor existing (50) with - a first connection system (150), - a second connection system (130, 160), - a third connection system (140), where the first joint system (150) is arranged in the upper end zone of the scaffold support (300,400) and serves to couple the temporary railing beam (22), - the third connection system (140) is arranged in the lower end area of the railing support (300,400), - the second joining system (130, 160) is built so that it can fit over the coupling rosette (162) and connect with the cone vertex (132) detachably by means of a wedge, - the third connection system (140) is designed as projection (142) with a pin (144) directed downwards which can be inserted in a notch of a coupling rosette (160), - corresponding distance between the second and third system of union (90, 100) to the measure of weft (R) and the distance (A5) between the second joint system (130, 160) and the first joining system (150) is chosen so that, when the third joint system (18) is connected, the stringer of Temporary railing (22) is at a height level (H) predetermined with respect to the scaffold floor (52) even by mount. 23. Device according to claim 22, characterized in that the wedge (134) is arranged in the cone vertex (132) in an impermissible way. 24. Device according to claim 22 characterized in that the wedge (164) is arranged in the railing support (300) with longitudinal displacement. 25. Device according to claim 24, characterized in that there is a longitudinal displacement unit (166) connected with the wedge (164) and shaped so that a person in the field of the scaffold to be mounted can reach it.