EP1338723A2 - Mounting device for a temporary scaffolding safety rail - 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

TECHNICAL AREA

The present invention relates to a device for a Scaffolding with scaffolding days with vertical supports, transoms, Coverings and railing spars for mounting a temporary required railing from an existing Scaffolding days for a still to be created, too assembling scaffolding days.

Such devices also become leading fuses or leading railings called.

STATE OF THE ART

In the well-known Layher Blitz and Layher all-round scaffolding systems the individual scaffolding days System components assembled. The assembly process takes place from the bottom up. After each of the vertical stems or vertical frames, the bars, the coverings, the Railing rails and, if necessary, the diagonals per floor are installed, the covering for the above can be closed mounting floor. If the fitter New floor to be created must be ensured that certain security elements already in this state are present that offer him a hold. at the scaffolding systems mentioned are leading Railing supports used. That means if the fitter has the "New" floors are reached, at least railing posts to which he can attach a railing rail. However, this railing needs to be assembled on every level and be dismantled.

Scaffolding systems are known in which frames are used that replace the railings and diagonals. After Assembly of such a frame forms the upper one Horizontal ledger is already the railing for those above scaffolding days to be assembled. The frame construction itself is part of the scaffold. It is another Embodiment known, in which also a frame is used, the upper horizontal bar that leading railings. This framework is used at Mounted in two already installed railing rails and then has to be relocated to one level to ensure leading railings. Both frame constructions are relatively bulky, heavy and therefore in theirs Assembly complex. In any case, during assembly or disassembly used several fitters become.

PRESENTATION OF THE INVENTION

Based on the prior art mentioned, the present invention the task or that technical problem, a device of the beginning Specify the type mentioned in a simple manner Assembly of a leading railing from an existing one Floor for a floor to be created above that the assembly effort to provide the leading Railing significantly reduced, the economical can be manufactured and which does not require that for Assembly of the device for the previous series components the scaffolding must be adjusted.

The invention also has the technical problem or the task of a device of Specify the type mentioned by a mechanic can be installed and moved.

The device according to the invention is characterized by the features of given independent claim 1. advantageous Refinements and developments are the subject of dependent claims.

The inventive device of the type mentioned is accordingly characterized by at least two each Detachable to a vertical handle via connection devices connectable railing supports and at least one telescopic temporary railing rail, each in its respective end area via a first connection device to the railing support in the upper end area can be connected, the first connection unit and so that the connected temporary railing rail at the Vertical posts connected to railing supports on one predetermined height level related to the height level of a scaffolding days still to be assembled located.

According to a particularly preferred embodiment, the telescopic length of the railing spar chosen so that the Device with different field lengths and also over multiple field lengths of the scaffolding system can be used, preferably field lengths in the range between 2 to 4 m (Meters), in particular 2.07 to 3.07 m (meters).

By providing a telescopic railing rail the leading railing easily by a mechanic to be created. To do this, first of all on one side of the Replace the railing support from the existing floor moved one level up, the railing spar is already connected to the first connection device and there during the entire assembly process stays connected. After moving the first Railing support is on the other side of the floor existing railing support with connected railing rail also arranged one level up, as a result, in the floor above, the is still to be assembled from the scaffolding system Railing rail with railing supports is available. In the Assembly of a scaffolding system becomes the device first installed on the lowest floor, i.e. on left and right vertical stems each one Guardrail support with handrail connected assembled. This construction of two railing supports with connected guardrail is then in the course of Creation of the scaffolding in the vertical direction Staggered on floors, which means complex assembly or disassembly per floor is no longer required.

A particularly preferred embodiment of the device or the formation of the railing spar, whereby the latter training is dependent on stands out characterized in that the temporary railing spar at least one has first and second telescopic spar element.

A particularly simple implementation is evident characterized in that the temporary railing spar a first spar designed as a hollow profile and one in this first Spar retractable or extendable second spar, the is preferably also designed as a hollow profile, having.

To prevent the telescopic railing spar in its two spars prevent what particularly occurs during disassembly could be, according to a preferred embodiment Blocking unit available that pull apart completely the telescopic spars prevents.

This blocking unit is preferably constructed according to one advantageous embodiment implemented in that the second telescopic spar a continuous in the longitudinal direction Has longitudinal groove in the longitudinal groove on the inside inserted end portion a first projection unit is present, the first telescopic spar in its Wall has a continuous recess, one on the first spar connectable plug-in unit is present, the has a second projection unit formed by the Recess of the first spar is insertable and at Reaching the maximum extension length of the telescopic Bring the first and second projection units together attacks.

The plug-in unit can be used in a simple manner Be spring pins.

The first and / or second projection unit are preferred trained as a rivet, which is an economical production method guaranteed.

A preferred embodiment is characterized in that that the second spar has corrugations on the outside.

To a trouble-free pull-out respectively Support the insertion process of the spars, respectively to the force to be used in the above-mentioned processes Keeping them as small as possible is particularly important preferred embodiment characterized in that the second spar in at least one end region, in particular in both End areas, via a plain bearing unit on the first spar is stored.

A design variant that has proven particularly successful in practice is characterized in that in the first spar introduced end portion of the second spar the slide bearing unit as a plug connected to the second spar is formed, the outer wall in some areas on the Inner wall of the first spar rests.

For optimal sliding properties during the assembly process to ensure is particularly advantageous Continuing education characterized in that in the pull-out direction lying end region of the first spar the plain bearing unit as a guide cap connected to the first spar inside bearing surfaces is formed on the Fit the outer wall of the second spar.

Any material can be used for the slide bearing unit Material are used that have a low coefficient of sliding friction having.

Due to the telescopic length of the temporary railing rail it is easily possible to use the "leading railing" for different field lengths and also over several field lengths of the scaffolding system can be used without any problems. Here is the Assembly or disassembly by a fitter possible without any problems.

The inventive device of the type mentioned in the introduction, which is also independent of the device described above can be used, is accordingly characterized by a on the front on a vertical stick of the existing one Scaffold support that can be connected with a first Connection device, a second connection device, a third connection device, a fourth connection device, the first connection device in the upper End region of the scaffold support is arranged and for Connecting the temporary railing rail serves the fourth Connection device in the lower end area of the Banister support is arranged, the third connection device is designed so that in the area of the connection of the assembled railing rail to the installed vertical post the existing floor detachably connected respectively can be put on or hung in and the Distance between the third connection device and the the first connection device is selected so that the Temporary railing rail with a third connection device connected at a given height level regarding of the scaffolding days to be created, the second Connection device between the first and third Connection device is positioned so that it is in the upper Area on the assembled vertical post of the existing one Scaffolding days can be detachably connected.

Due to the constructive design and positioning of the Connection units can be easily installed leading railing can be easily implemented without there is a change in the design of the existing series scaffolding components requirement. The device is without change Construction in known scaffolding systems (for example Layher Blitz and Layher all-round scaffolding system) possible.

A particularly preferred embodiment is distinguished characterized in that the first connection device in Essentially perpendicular to the longitudinal direction of the scaffold support arranged projection unit with tilt pin and the temporary guardrail in its end area one has a continuous recess, such that the Railing rail can be pushed onto the projection unit can and the tilt pin under the effect of its Own weight secures the connection of the railing spar.

Another advantageous embodiment that is extremely ensures easy installation, is characterized by that the second connection device protrudes two Has flange elements or a U-profile unit that on the assembled vertical handle with protruding flange elements is postponed and the protruding ones Flange elements each have a continuous recess own and the detachable connection to the vertical handle possible by driving a wedge into the recesses is.

A particularly simple implementation of the third Connection device is given in that the third Connection device one, in particular two in parallel has spaced tabs, each preferably one first, sloping downward tab area and one has second adjoining tab area. The In the case of the Layher flash scaffolding system, lugs can be simple way of connecting the existing railing spars can be hung there. In which They are connected to the Layher all-round scaffolding system Tabs in a simple way on this one Scaffolding system existing rosettes of the vertical stems placed. This makes the geometrical position of the Vertical support clearly defined for every scaffolding system.

A particularly preferred embodiment, which during the Assembly easy handling and reliable fixation guaranteed, is characterized in that the second Connection unit has a projection unit that the mounted vertical handle with a grip area reaches behind in areas and in the area behind there is a slot that is open at the bottom and that is attached to one existing gusset plate can be plugged into the assembled scaffold, a preferred embodiment thereby distinguishes that the back area essentially has a pitch circle cross section.

A particularly advantageous one in practical use Design is characterized in that the third Connection device one, in particular two in parallel spaced tabs with diagonally pointing downwards Has tab areas, the connection device so is designed that the railing support when connecting a vertical under the sole effect of its own weight Assumes assembly position.

A particularly simple implementation of the fourth Connection unit is characterized in that this as Projection unit, in particular as a hollow profile unit, is formed, the free end region in the assembled Condition of the railing support at least in some areas on the Outside of the mounted vertical handle.

A particularly preferred alternative embodiment, which in simple and reliable positioning guaranteed during the assembly process characterized in that the fourth connection device two has spaced abutment projections, which in assembled Condition on the inside of the assembled scaffold Contact area and thereby an anti-rotation form.

With regard to a particularly economical production the device according to the invention is special advantageous, the third connection device and the second To form the connection device in one piece. It shows a particularly preferred embodiment very large assembly technology advantages, which are characterized by that the third connection device and / or the fourth Connection device a system cross-sectional contour area have, which in the assembled state on the outer contour of the mounted vertical handle form-fitting in some areas is applied.

Another particularly advantageous embodiment of the device according to the invention, preferably on the known Layher all-round scaffolding system is used at the vertical stems of the scaffolding system in the longitudinal direction in a specified pitch with connection rosettes Have recesses, and an independent variant is characterized by a front to one Vertical leg of the existing scaffolding days can be connected Railing support with a first connection device, one second connection device, a third connection device, the first connection device in the upper one End region of the scaffold support is arranged and for Connecting the temporary railing rail serves the third Connection device in the lower end area of the Banister support is arranged, the second connection device than can be pushed onto the connection rosette and detachably connectable to the wedge head by means of a wedge is designed, the third connection device as Projection device with pin pointing downwards is formed which in a recess Connection rosette can be used, the distance between the second and third connection device the pitch of the rosettes and the distance between them second connection device and the first connection device is chosen so that the temporary Railing rail with a third connection device connected at a given height level with respect to the scaffolding days to be created.

With such a device, it is easily possible without changing the underlying Layher all-round scaffolding system to create a leading railing that can be easily assembled or disassembled.

A preferred embodiment is characterized in that that the wedge is captively connected to the wedge head is.

An alternative embodiment that is particularly simple Handling during assembly or disassembly for the Assembly personnel guaranteed, is characterized by that the wedge can be moved longitudinally on the railing support is arranged. The security during assembly or disassembly of the "leading railings" according to a particularly preferred embodiment increases that a longitudinal displacement unit connected to the wedge is present, which is designed so that it from one standing on the scaffold field to be assembled Person can be detected.

Further embodiments and advantages of the invention result themselves by the features listed in the claims and by the exemplary embodiments specified below. The features of the claims can be in any way be combined with each other insofar as they are not obviously mutually exclusive.

BRIEF DESCRIPTION OF THE DRAWING

Fig. 1

schematischer Ausschnitt aus einer Perspektivansicht eines Gerüstes mit einem voreilenden Geländer bestehend aus zwei Gerüststielen und einem dazwischen angeordneten, teleskopierbaren Geländerholm, wobei die Geländerstütze vier Anschlusseinrichtungen aufweist,

Fig. 2

schematische Seitenansicht eines Geländerholms gemäß Fig. 1,

Fig. 3

schematische Längsansicht des Geländerholms gemäß Fig. 2,

Fig. 4

schematische Darstellung der dritten Anschlusseinrichtung gemäß Detail A in Fig. 2,

Fig. 5

schematischer Schnitt durch die Geländerstütze gemäß Schnittführung B-B in Fig. 2,

Fig. 6

schematische Darstellung der vierten Anschlusseinrichtung gemäß Detail B in Fig. 2,

Fig. 7

schematischer Schnitt durch die Geländerstütze gemäß Schnittführung A-A in Fig. 2,

Fig. 8

schematischer Schnitt durch die Gerüststütze gemäß Fig. 2 entlang Schnittführung C-C,

Fig. 9

schematische Seitenansicht des Details D der Geländerstütze gemäß Fig. 2,

Fig. 10

schematische Ansicht des Details D rechtwinklig zur Ansicht gemäß Fig. 9,

Fig. 11

schematische Seitenansicht des teleskopierbaren Geländerholms gemäß Fig. 1,

Fig. 12

schematische Ansicht des Details Z des Geländerholms gemäß Fig. 11, teilweise im geschnittenen Zustand,

Fig. 13

schematische Detailansicht des Geländerholms gemäß Fig. 11 in Pfeilrichtung F,

Fig. 14

schematischer Schnitt gemäß Schnittführung D-D in Fig. 12, wobei nur der eingeschobene Geländerholm dargestellt ist,

Fig. 15

schematische Detailansicht des Geländerholms gemäß Fig. 11 gemäß Detail X,

Fig. 16

schematische Detailansicht mit teilweiser Schnittführung des Geländerholms gemäß Fig. 11 gemäß Detail Y,

Fig. 17

schematische Detailansicht des äußeren Geländerholms gemäß Fig. 11 in Pfeilrichtung E,

Fig. 18

schematische Längsansicht einer Steckeinheit mit Vorsprungeinheit,

Fig. 19

schematische Seitenansicht der Steckeinheit gemäß Fig. 18,

Fig. 20

schematische Seitenansicht im Bereich der dritten und vierten Anschlusseinrichtung bei Montage an einem Layher-Allround-Gerüstsystem,

Fig. 21

schematische Seitenansicht im Bereich der dritten und vierten Anschlusseinrichtung bei Montage an einem Layher-Blitz-Gerüstsystem,

Fig. 22

schematische Seitenansicht des Endbereichs des eingesteckten Geländerholms mit aufgesetztem Teflonstopfen,

Fig. 23

schematische Seitenansicht eines zweiten Ausführungsbeispiels einer Geländerstütze, insbesondere geeignet für das bekannte Layher-Blitz-Gerüstsystem,

Fig. 24

schematische Drauf-, Seiten- und Längsansicht des Details K gemäß Fig. 23,

Fig. 25

schematische Drauf-, Seiten- und Längsansicht des Details L gemäß Fig. 23,

Fig. 26

schematische Drauf-, Seiten- und Längsansicht des Details M gemäß Fig. 23,

Fig. 27

schematische Detailperspektive des Details L im am Gerüst angeschlossenen Zustand,

Fig. 28

schematische Detailperspektive des Details M im am Gerüst angeschlossenen Zustand,

Fig. 29

schematische Ansicht eines dritten Ausführungsbeispiels einer Geländerstütze, insbesondere geeignet für das Layher-Allround-Gerüstsystem,

Fig. 30

schematische Drauf-, Seiten- und Längsansicht des Details P gemäß Fig. 23,

Fig. 31

schematische Drauf-, Seiten- und Längsansicht des Details O gemäß Fig. 23,

Fig. 32

schematische Drauf-, Seiten- und Längsansicht des Details N gemäß Fig. 23,

Fig. 33

schematische Ansicht eines vierten Ausführungsbeispiels einer Geländerstütze, insbesondere geeignet für das Layher-Allround-Gerüstsystem,

Fig. 34

schematische Drauf-, Seiten- und Längsansicht des Details S gemäß Fig. 23,

Fig. 35

schematische Drauf-, Seiten- und Längsansicht des Details R gemäß Fig. 23,

Fig. 36

schematische Drauf-, Seiten- und Längsansicht des Details Q gemäß Fig. 23,

Fig. 37

a) bis e) schematische Detailansicht eines Gerüstausschnittes in einzelnen Montagezuständen unter Einsatz eines vorauseilenden Geländers,

Fig. 38

schematische Seitenansicht des Details E gemäß Fig. 11 mit einer zusätzlichen Gleitlagereinheit,

Fig. 39

schematische Detailperspektivausschnitt aus einem bekannten Layher-Allround-Gerüstsystem unter Einsatz eines vorauseilenden Geländers in einem Montagezwischenzustand und

Fig. 40

schematische Detailperspektivausschnitt aus einem bekannten Layher-Blitz-Gerüstsystem unter Einsatz eines vorauseilenden Geländers in einem Montagezwischenzustand.

The invention and advantageous embodiments and developments thereof are described and explained in more detail below with reference to the examples shown in the drawing. The features to be gathered from the description and the drawing can be used according to the invention individually or in groups in any combination. Show it:

Fig. 1

schematic section of a perspective view of a scaffolding with a leading railing consisting of two scaffolding posts and a telescopic railing rail arranged in between, the railing support having four connection devices,

Fig. 2

schematic side view of a railing spar according to FIG. 1,

Fig. 3

schematic longitudinal view of the railing spar according to FIG. 2,

Fig. 4

schematic representation of the third connection device according to detail A in FIG. 2,

Fig. 5

schematic section through the railing support according to section BB in Fig. 2,

Fig. 6

schematic representation of the fourth connection device according to detail B in FIG. 2,

Fig. 7

schematic section through the railing support according to section AA in Fig. 2,

Fig. 8

2 shows a schematic section through the scaffold support according to FIG. 2 along the section guide CC,

Fig. 9

schematic side view of detail D of the railing support according to FIG. 2,

Fig. 10

schematic view of the detail D at right angles to the view according to FIG. 9,

Fig. 11

schematic side view of the telescopic railing spar according to FIG. 1,

Fig. 12

11 shows a schematic view of the detail Z of the railing spar according to FIG. 11, partly in the cut state,

Fig. 13

11 shows a schematic detailed view of the railing spar according to FIG. 11 in the direction of arrow F,

Fig. 14

schematic section according to section DD in FIG. 12, only the railing rail being inserted being shown,

Fig. 15

11 shows a schematic detailed view of the railing spar according to FIG. 11 according to detail X,

Fig. 16

schematic detailed view with partial sectional view of the railing spar according to FIG. 11 according to detail Y,

Fig. 17

11 shows a schematic detailed view of the outer railing spar according to FIG. 11 in the direction of arrow E,

Fig. 18

schematic longitudinal view of a plug-in unit with projection unit,

Fig. 19

schematic side view of the plug-in unit according to FIG. 18,

Fig. 20

schematic side view in the area of the third and fourth connection device when mounted on a Layher all-round scaffolding system,

Fig. 21

schematic side view in the area of the third and fourth connection device when mounted on a Layher flash scaffolding system,

Fig. 22

schematic side view of the end area of the inserted railing rail with attached Teflon stopper,

Fig. 23

schematic side view of a second embodiment of a railing support, particularly suitable for the known Layher lightning scaffolding system,

Fig. 24

schematic top, side and longitudinal view of the detail K according to FIG. 23,

Fig. 25

schematic top, side and longitudinal view of the detail L according to FIG. 23,

Fig. 26

schematic top, side and longitudinal view of the detail M according to FIG. 23,

Fig. 27

schematic detailed perspective of the detail L when connected to the scaffolding,

Fig. 28

schematic detailed perspective of the detail M when connected to the scaffold,

Fig. 29

schematic view of a third embodiment of a railing support, particularly suitable for the Layher all-round scaffolding system,

Fig. 30

schematic plan, side and longitudinal view of the detail P according to FIG. 23,

Fig. 31

schematic top, side and longitudinal view of the detail O according to FIG. 23,

Fig. 32

schematic top, side and longitudinal view of the detail N according to FIG. 23,

Fig. 33

schematic view of a fourth embodiment of a railing support, particularly suitable for the Layher all-round scaffolding system,

Fig. 34

schematic plan, side and longitudinal view of the detail S according to FIG. 23,

Fig. 35

schematic plan, side and longitudinal view of the detail R according to FIG. 23,

Fig. 36

schematic top, side and longitudinal view of the detail Q according to FIG. 23,

Fig. 37

a) to e) schematic detailed view of a scaffold section in individual assembly states using a leading railing,

Fig. 38

11 shows a schematic side view of detail E according to FIG. 11 with an additional slide bearing unit,

Fig. 39

schematic detailed perspective section from a well-known Layher all-round scaffolding system using a leading railing in an intermediate assembly state and

Fig. 40

schematic detailed perspective section from a known Layher flash scaffolding system using a leading railing in an intermediate assembly state.

WAYS OF CARRYING OUT THE INVENTION

In Fig. 1 is a section of a scaffold schematically in a perspective view shown, in which two Scaffolding days 49, 50 are already assembled. Every scaffolding day 49, 50 of field length L1 is made up of system scaffolding components together, namely from the left and right arranged Vertical posts 26 or vertical frames, one in between arranged, to the vertical handles 26 left and right connected railing rail 24, not shown Longitudinal bars and one between two railing posts 26 arranged vertically to the sheet plane of Figure 1 Lower covering 54 suspended in cross members.

As soon as the second floor 50 in FIG. 1 is installed, a upper covering 56 connected and the next to be created Floor 52 can be assembled. Are in this state initially no security elements on the to creating scaffolding days 52 available.

These securing elements are shown in FIG. 1 shown device 10 provided that from two railing supports 12, each of which already mounted vertical stem 26 can be connected, and one arranged in between telescopic railing rail 22 for Provided.

For reasons of clarity, the one in FIG. 1 is on the right shown railing support 12 by 90 ° (old degree) to the right rotated and the railing support available on the left in FIG 12 rotated by 90 ° (old degree) to the left, that is in the In practice, the railing supports 12 are in the view 1 immediately before the vertical handles 26, the on the side facing the viewer is called Vertical handles 26.

The assembly of the device 10 or its layer-by-layer implementation during the assembly process described below.

The railing support 12 shown in FIGS. 2 and 3 has a round tube profile that runs from top to bottom 13. The railing support points from top to bottom 12 a first, second, third and fourth connection device 14, 16, 18, 20 on. The first connection device 14 is used to connect the railing spar 22. The second, third and fourth connection device 16, 18, 20 is used for Connection to the already installed vertical stick Scaffolding days 50.

The first connection device arranged in the upper end region 14 is shown in more detail in FIGS. 9 and 10. In the upper end area of the round tube 13 is a press-in piece 28 pressed into the round tube 13, one up has running flat area 29 to which a tab 36 is connected. Perpendicular to tab 36 or to the longitudinal direction of the round tube 13 is one Projection unit 30 formed on the free end portion a rotatable rocker pin 32 is connected, which is under the effect of its own weight across the projection unit 30 places.

A simple connection of a telescopic railing rail 22 is ensured by the fact that he is in his 11, a pressed-in end piece 38 which also extends into a flat region 39 runs out, in the flat area 39 a continuous Recess 34 is arranged, the inner diameter so is selected that the railing rail 22 on the projection unit 30 can be postponed. After postponing the rocker pin 32 locks the connection position of the Railing spar 22 automatically.

The second connection device 16 is closer in FIG. 8 shown. An extension element 41 is vertical a U-profile unit 40 to the longitudinal axis of the round tube 13 connected, which is pushed onto the vertical shaft 26 can be, in the postponed state Flange elements 42 of the U-profile unit 40 over the Vertical stem 26 are outstanding and in this protruding area of the flange elements 42 one each slot-shaped recess 44 is present, such that a Wedge 46 can be driven into the recesses 44, so that a jamming connection between the U-profile unit 40 and the vertical shaft 26 is achieved. The Distance A1 of the longitudinal axis of the round tube 13 and the The longitudinal axis of the vertical shaft 26 is A1 in FIG specified. It is dimensioned so that taking into account the formation of the third and fourth connection unit 18, 20, described below, the railing post 12 substantially parallel to the vertical post 26 can be connected.

The third connection unit shown in Figures 4 and 5 18 has two on the outside of the round tube 13 connected, parallel spaced tabs 60, the a first, diagonally downwards, that is to the vertical handle 26 extending tab portion 62 and one thereon second tab area running parallel to the round tube 13 64 on. Is approximately in the middle of the first tab area 62 a stiffening web plate 68 welded. The light one Inner distance of the tab 60 is only slightly larger than the outer diameter of the vertical stem 26.

The fourth connection device 20 is shown in FIGS 7 shown. The fourth connection device 20 is as one perpendicular to the longitudinal axis of the round tube 13 connected projection unit 21 (spacer tube) formed, the length L of the spacer tube so dimensioned is that the free end face of the spacer tube in the assembled state of the railing support 12 in some areas the outside of the vertical stem 26 abuts.

The height level of the railing support 12 at the Vertical support 26 connected support 12 and thus that Height level H of the temporary railing spar 22 is determined by the Position of the third connection device 18 is determined. The third connection device 18 is namely in the area of Connection of the assembled railing rail 24 to the mounted vertical support 26 connected. This position is specified for the respective scaffolding system. In Dependence on the arrangement of the third connection device 18 is the second connection device in FIG Longitudinal direction of the railing support 12 at a distance A2 (Figure 2) arranged, which ensures that the second Connection device 16 below the upper covering 56 (see Figure 1) on the vertical stem 26 of the existing Scaffolding days 50 can be connected. Likewise determined the distance A3 of the fourth connection device 20 to third connection device 18 after that the fourth Connection device 20 below the one already installed Railing spar 24 comes with the vertical handle 26 to the system.

The distance A4 of the first connection device 14 to third connection device 18 is selected so that the Railing rail 22 as part of the leading railing with the railing support 12 installed at a height level H (see Figure 1) is arranged above the upper covering 56, the corresponds to the safety regulations.

The connection of the third connection device 18 in the The well-known Layher all-round scaffolding system is shown in Figure 20 shown schematically. The connection of the guard rail 24 a fully assembled tier 50 to the vertical post 26 takes place using the known wedge lock technology. in the A wedge head 87 is the end region of the railing rail 24 connected with a slot open to the front has, which on a on the vertical stem 26th connected rosette 86 can be pushed. The Rosette 86 has continuous recesses with a arranged on the wedge head perpendicular to the slot continuous recess can be covered, so that the connection / connection by hammering a wedge 88 can be made. As in Figure 20 can be seen, the third connection device 18 is such connected that the second tab portion 64 with its lower front end on the inside on the rosette 86 is stored. At the same time, the outside of the forehead lies fourth connection device 20 on the outside Vertical stick 26 on. If the second connection device 16 is not yet connected, the railing support 12 be tilted forward a little until the second Tab area 64 strikes the wedge head 87, which is the assembly relieved when hanging or unhooking.

The connection situation of the third connection device 18 as part of the well-known Layher flash framework is in figure 21 shown schematically. With this system framework the scaffold spars 24 via a downward-pointing projection unit 48 in existing hanging pockets on the vertical handle 26 40 hung. As can be seen from FIG Geometry of the third connection device 18 with respect to the first tab area 62 and second tab area 64 formed so that the second tab portion 64 den reaches behind the already assembled area of the railing rail 24, that is, in the example on the projection unit 48 is applied, and therefore the result is a simple suspension construction is implemented.

The construction of the telescopic temporary Railing spar 22 is schematic in Figures 11 to 17 shown.

The railing spar 22 has a first spar 70, which as Round tube profile is formed. In this first spar 70 a second spar 72 can be pushed in or pushed out be, which also as a round tube profile with a Provide circumferential corrugation in the longitudinal direction on the outside is.

In order to completely pull the second spar 72 out of the Preventing the first spar 70 is a blocking unit provided, which is described below. First points the second spar 72 has a longitudinal groove 74 on. In the plug-in end area of the groove 74 is one first projection unit 76 attached, which as a rivet is trained. At the same time, the first spar is 70 in its insertion area in the wall a continuous Recess 78. After in the manufacture of the railing spar 22 the second spar 72 is inserted into the first spar 70, a plug-in unit 80 is used, which is an elastic one Spring plug unit is formed, which is a part-circular Has circumferential contour and thereby expanding to the second spar 70 can be attached. simultaneously the plug-in unit 80 has an inward-facing one Projection unit 82, which is guided through the recess 78 can be. The length of the second projection unit 82 is dimensioned so that it protrudes into the interior of the groove 74. As soon as the plug-in unit 80 is on the first spar 70 in the area of the recess 78, the second spar 72 can only up to the stop of the first projection unit 76 the second projection unit 82 are pulled out. The second projection unit 82 is also a rivet educated.

To the sliding properties of the second spar 72 within of the first spar 70 is improved according to the Embodiment according to Figure 22 in the inserted A teflon stopper 84 in the front end area of the second spar 72 attached, the outer wall side with the inner wall of the first spar 70 is present. It can also be another designed plain bearing element can be used.

In the following, the assembly of the device 10, that is of a leading railing based on the representations in Figure 1 and Figures 37 a) to e) explained in more detail.

After the bottom scaffolding stage 49 is created a covering 54 is suspended on the top and the device 10, consisting of two railing supports 12 and the telescopic Handrail 22, created on the floor. Now the Device 10 connected on both sides of the floor 49 become. For this purpose, the third connection device 18 in the Area of connection of the already installed railing rail 24 hung on the vertical shaft 26 and the second Connection device 16 is by means of wedge 46 on the Vertical arm 26 connected. This is done on both Sides of the bottom scaffolding days 49. This condition is in Figure 1 by the railing support shown in dashed lines on the right 12 and the handrail support shown in solid lines on the left 12 shown. In this state is for the Fitter who then has to work at level N1, already a temporary railing spar 22 with railing supports 12 available.

Now the second scaffolding day 50 in FIG. 1 is completed and the upper covering 56 is hooked in at level N2 the device 10 without having to be disassembled and without the need for a second fitter, upwards added. According to FIG. 1, this resolves at level N1 located fitter the second connection device 16 from in Figure 1 right vertical stem 26. This is therefore from Level N1 possible because the second connection device 16 directly below the level N1 on the vertical stick 26 connected. The fitter can then hang it up the third connection device 18 the right handrail support 12 according to arrow direction I up one level connect staggered (arrow I) by first pressing the third Connection device 18 in the connection area of the assembled railing spar 24 of the assembled scaffolding days 50 hangs in and then the second connection device 16 below the upper covering 56 on the Vertical stem 26 wedged. Exactly the same process repeated then on the side of the left handrail support 12 (arrow II). Thereafter 52 is for the scaffolding days to be created a leading railing with railing rail 22 and protruding railing supports 12 available.

With the telescopic railing rail 22 is the use of Device 10 on scaffolding days with different Field widths possible without any problems. To ensure a leading railing in the course of continuous assembly only the railing posts 12 have to be moved, wherein the railing spar 22 is mounted on the railing post 22 remains.

It is also possible to have a plurality of spaced railings 22 to connect to the railing supports. To do this only additional connection devices to the Railing supports 12 can be connected.

It is also conceivable that the temporary balustrade is not train telescopically. To implement the device however, two fitters are then required, working in parallel the left and right handrail supports loosen and move upwards in stages.

A second embodiment variant is shown in FIG Handrail support 200 shown, which is particularly suitable is in a well-known Layher flash scaffolding system to be used. In the upper end area is a first one Connection device 14 available, as in the Railing support 12 as shown in Figure 2 designed as a tilt pin 32 which is directly on the outer wall via a cantilever element 122 of the round tube 13 is connected.

In the lower end area in Figure 23 is a third and fourth Connection device 100, 110 via cantilever elements 104 connected, both connection devices 100, 110 are formed in one piece. Both devices 100, 110 point in a plan view seen a U-shaped Cross-sectional contour, the web being semicircular is formed and a contact cross-sectional contour area 120 for the assembled vertical support 26 of the scaffold represents.

The third connection device 100 has two downwards pointing (inclination approx. 45 ° (old degree)) tab areas 102, the geometry of the third connection device 110 being so is formed that due to the weight of the Banister support 200 this when hanging the third Connection device 100 in the assembled railing rail 24 of the existing scaffold automatically becomes jammed vertical mounting position.

In this state, the inner contour of the cross-sectional contour area lies 120 on the outer contour of the assembled Vertical stem 26 of the scaffold. The fourth connection device 110 has two, facing, parallel spaced abutment projections 112 which are in the assembled state over the assembled vertical post 26 of the scaffold point out and additionally form an anti-twist device, because on the inside of the existing adjacent construction 108 (see FIG. 28) for railing posts 24 of the existing scaffolding.

The assembled state of the railing support 200 is shown in FIG. 28 presented in a detailed perspective. The inclined Tab areas 102 of the third connection device 100 overlap the assembled railing posts 24 of the existing one Framework. The railing spars 24 are mounted on the Vertical stem 26 of the existing scaffold over so-called railing box 108 connected. The Contact projections 112 of the fourth connection device 110 lie on the side of the railing box 108, so that a total protection against rotation of the railing support 200 given is.

Between the third connection device 100 and the first Connection device 14 is a second connection device 90 to the round tube 13 via a projection unit 92 connected. At the free end of the projection unit 92 is an engagement area 94 connected in a Top view seen a semicircular cross section has. In the free end of the semicircular The engagement area 94 is an open at the bottom Slot 96 is present.

The connection of the second connection device 90 in assembled state to the scaffold is in a figure 27 Detailed perspective shown. On the vertical handle 26 of the existing scaffolding is in the upper corner area for formation of a frame with a cross member 27, a gusset plate 98 welded. There is one in the corner area of the gusset plate Recess 25 available. In this recess 25 is from above the free end area of the engagement area 94 of the second connection device 90 and introduced the slot 96 slipped onto the gusset plate 98. At the same time, the engagement area 94 encompasses the outer contour of the assembled Vertical stick 26. Overall, there is a good one positive connection that has a reliable function guaranteed and yet easily assembled or can be dismantled.

The distance of the round tube 13 is shown in FIGS the railing support 200 to the assembled vertical support 26 A1 specified.

FIGS. 29 to 32 show a third exemplary embodiment shown a railing post 300, which is suitable for the well-known Layher all-round scaffolding system become. The railing support 300 has a continuous one Round tube 13, at its upper end a first Connection device 150 with a rocker pin 32 connected to the first connection device 14 corresponds to the railing support 200. In the lower end of the Railing support 300 is a third connection device 140 connected, which is an outward-facing projection unit 142 has a downward at its free end region protruding pin 144 is connected.

At a grid dimension R spaced upwards to the third connection device 140 is a second connection device 130 the round tube 13 connected, the wedge head 132nd having. Wedge head 132 has one forward facing open slot 136 so that the wedge head 132 on a connection rosette 162 (see FIG. 39) is pushed on can be. The connection rosette 162 has continuous Recesses. The detachable clamping connection is made by Impact one captive on the wedge head 132 existing wedge 134. This type of connection corresponds to with scaffolding known wedge lock technology.

The distance A5 of the second connection device 130 from the first connection device 150 is dimensioned such that the first connection device 150 when mounted on one Vertical stick 26.1 (see Figure 38) connected Railing post 300 sets a height level H that the Railing height of the scaffolding days still to be created equivalent.

Another embodiment is shown in FIGS. 33 to 36 a railing post 400, which is shown essentially has the same structure as the railing support 300. The same components have the same reference number and are not explained again. The first connection device 150 and the third connection device 140 corresponds to that already described with reference to FIGS. 30 and 32 Port facilities.

In contrast to the railing support 400 according to FIG. 29 there is a second connection device 160 which also has a wedge head 132 with slot 136, however, has a wedge 160 which is not captive on Wedge head 132 is connected, but via a longitudinal displacement unit 166 longitudinally displaceable on the tube 13 is available. The longitudinal displacement unit 166 has one upper sleeve 167, a middle sleeve 168 and a lower one Sleeve 169 on. The sleeves surround the round tube 13 and are mounted longitudinally on this. Are with each other the sleeves are coupled to one another via a rod unit 170. The wedge 164 is connected to the middle sleeve 168, which is located just above the wedge head 132.

The lower sleeve 169 is below the wedge head 132 available. The upper sleeve 162 is in the upper end region of the Banister support 400 arranged such that when assembled Guardrail support the upper sleeve 167 from one on the upper one The assembly person standing on the scaffold level can be conveniently detected can. The railing support 400 offers compared to the Railing post 300 the safety advantage that the Assembly person to loosen the wedge 164 in a safe is almost upright, while releasing of the wedge 134 of the second connection device 130 of the Railing support 300 the assembly person has to bend down deep.

An intermediate assembly state is shown in FIG. 39 in a detailed perspective of a leading railing the railing support according to Figure 29 over two scaffolding fields shown. The basic scaffolding is provided by the well-known Layher all-round scaffolding system educated. There are already two Scaffolding days 50, 49 assembled. For the still to be assembled A railing is to be made available on scaffolding days 52 which is assembled from the upper existing floor 50 shall be. 39 is the railing support 300 arranged on the right still at the lower Vertical stick 26.1 connected. The left handrail support 300 is already on the top left Vertical stick 26.1 connected. The second is Connection device 130 by means of the wedge 134 and the Wedge head 132 to the uppermost rosette 162 of the vertical stem 36.1 connected. At the same time pin 144 engages third connection device 140 into a recess of the rosette 162 arranged at a spacing of R between them of the vertical stick 26.1. The middle one in Figure 39 Railing support 300 is already from the vertical support 26.1 shown schematically solved. By simply pushing it up the middle railing support 300 and connection to the Associated middle vertical stem 26.1 can assembling railing rail 22 to the height level H for the left scaffold bay. The must Railing rail 22 can not be solved because of its Telescopic a change in length during the Assembly process is easily possible. After the middle Vertical support 300 on top of the middle vertical support 26.1 is connected, the assembly of the in Figure 39 right hand rail support 300 released and also on the top of the right vertical handle 26.1 connected.

Figure 40 shows the same assembly state for the Railing support 200 according to Figure 23, wherein as Basic scaffolding system the well-known Layher-Blitz scaffolding system is used. To assemble the railing support 32 third connection device 100 in the connection area of a already mounted railing rail 24 to the vertical support 26 hooked with their oblique tab areas 102, wherein simultaneously the second connection device 90 into the Recess of the gusset plate 98 is threaded and through Push the slot 96 onto the gusset plate 98 Form fit is generated. The investment tabs 112 of the fourth connection device 110 encompasses the Connection area arranged connection boxes for the mounted railing posts 24, so that an anti-rotation the banister support 200 is guaranteed in the assembled state becomes.

FIG. 38 is a detailed side view of a storage variant for the telescopic railing rail 22 with its first Spar 70 and its second spar 72 shown. The Presentation essentially corresponds to the presentation according to Figure 12. The same components have the same reference numerals and are not explained again. The illustrated Design variant improves the telescopability of the two spars. So is on the end of the first spar 70th a guide cap 85 is attached and over the plug-in unit 80 connected over the final contour of the first spar 70 protrudes and slightly inwards in this area has protruding bearing surfaces 89 on the Bearing the outer wall of the second spar 72. As a material a material is used for the guide cap, which has a very low coefficient of sliding friction, which is particularly the case with Teflon. In connection with the Plain bearing unit at the other end of the second spar 72, the means for example the Teflon stopper 84 according to FIG. 22, will be an extremely smooth telescopic Railing spar 22 achieved.

Claims (28)

Device (10) for a scaffold with scaffold days (49, 50, 52) with vertical supports (26), bolts, coverings (54) and railing spars (24) for assembling a necessary temporary railing spar (22) from an existing scaffolding day (50) for scaffolding days to be created and assembled above (52)
marked by at least two railing supports (12), which can be detachably connected to a vertical support (26) via connecting devices (16, 18, 20; 90, 100, 110; 150, 130, 140; 160) at least one telescopic temporary railing rail (22), each of which can be connected to the railing support (22) in its respective end region via a first connection device (14; 150) in the upper end region, wherein the first connection unit (14; 150) and thus the connected temporary railing rail (22) with railing supports (12) connected to the vertical supports (26) are at a predetermined height level (H) in relation to the height level (N2) of a still to be installed, scaffolding days (52) located above. Device according to claim 1,
characterized in that the telescopic length of the railing spar (22) is selected so that the device can be used with different field lengths (L) and also over several field lengths of the scaffolding system. Device according to claim 2,
characterized in that the field lengths are in the range between 2 to 4 m (meters), in particular 2.07 to 3.07 m (meters). Device according to one or more of claims 1 to 3,
characterized in that
the temporary railing spar (22) has a first spar (70) designed as a hollow profile and a second spar (72) which can be pushed in / out of the first spar (70). Device according to claim 4,
characterized in that
the railing bar (22) has a blocking device (66) which prevents the telescopic bars (70, 72) from being pulled apart completely. Device according to claim 5,
characterized in that
the second telescopic spar (72) has a longitudinal groove (74) which is continuous in the longitudinal direction, there is a first projection unit (76) in the longitudinal groove (74) in the end region inserted on the inside, the first telescopic spar (70) has a continuous recess (78) in its wall in its end region facing the second spar (72), there is a plug-in unit (80) which can be connected to the first spar (70) and has a second projection unit (82) which can be inserted through the recess (78) of the first spar (70) and when the maximum extension length of the telescopic spars (70, 72) is reached, strike the first and second projection units (76, 82) together. Apparatus according to claim 6,
characterized in that
the plug-in unit (80) is designed as a spring connector. Device according to claim 6 or 7,
characterized in that
the first and / or second projection unit (76, 82) is / are designed as a rivet. Device according to claim 4,
characterized in that
the second spar (72) has corrugations on the outside. Device according to one or more of the preceding claims,
characterized in that
the second spar (72) is mounted on the first spar (70) in at least one end region, in particular in both end regions, via a slide bearing unit. Device according to claim 10,
characterized in that
the plain bearing unit has material with a low coefficient of sliding friction, in particular plastic or Teflon. Device according to claim 11,
characterized in that
in the end region of the second spar (72) introduced into the first spar (70), the slide bearing unit is designed as a plug (84) connected to the second spar (72), the outer wall of which rests in regions on the inner wall of the first spar (70). Device according to claim 10 or 11,
characterized in that
on the end region of the first spar (70) lying in the pull-out direction, the slide bearing unit is designed as a guide cap (85) connected to the first spar (70) with inward-facing bearing surfaces (89) which bear against the outer wall of the second spar (72). Device (10; 200; 300) according to one or more of the preceding claims or according to the preamble of claim 1,
marked by a railing support (12, 200) which can be connected on the front to a vertical support (26) of the existing scaffolding days (50) a first connection device (14), a second connection device (16, 90), a third connection device (18, 100), a fourth connection device (20, 110), wherein the first connection device (14) is arranged in the upper end region of the scaffold support (12) and is used to connect the temporary railing spar (22), the fourth connection device (20, 110) is arranged in the lower end region of the railing support (12), the third connection device (18, 100) is designed such that it is detachably connectable, attachable or hookable in the area of the connection of the assembled railing rail (24) to the installed vertical post (20) of the existing floor (50) and the distance (A4) between the third connection device (18, 100) and the first connection device (14) is selected such that the temporary railing spar (22) with a connected third connection device (18, 100) is at a predetermined height level (H) with respect to the scaffolding days still to be created (52), the second connection device (16, 90) is positioned between the first and third connection device (14, 18, 100) in such a way that it can be detachably connected in the upper area to the installed vertical post (26) of the existing scaffolding days (50). Device according to claim 14,
characterized in that
the first connection device (14) has a projection unit (30) with a tilting pin (32) which is arranged substantially perpendicular to the longitudinal direction of the scaffold support (12) and the temporary railing rail (22) has a continuous recess (34) in its end region, such that the Railing rail (22) can be pushed onto the projection unit (34) and the tilting pin (32) secures the connection of the railing rail (22) under the effect of its own weight. Device according to claim 14,
characterized in that
the second connection device (16) has two projecting flange elements (42) or a U-profile unit (40) which can be pushed onto the mounted vertical support (26) with projecting flange elements (42) and the projecting flange elements (42) each have a continuous one Have recess (44) and the detachable connection to the vertical handle (26) is possible by driving a wedge (46) into the recesses (44) when the U-profile unit is pushed on. Device according to claim 14,
characterized in that
the second connection unit (90) has a projection unit (92), which engages behind the mounted vertical handle (26) with an engagement area (94) in some areas, and in the engagement area (94) there is a slot (96) which is open at the bottom and which engages existing gusset plate (98) can be plugged into the assembled scaffold. Device according to claim 17,
characterized in that
the engagement area (94) essentially has a pitch circle cross section. Device according to claim 14,
characterized in that
the third connection device (18, 100) has one, in particular two, parallel spaced tabs (60, 102) with tab areas (32) pointing obliquely downwards, the connection device (18, 100) being designed such that the railing support is connected with the sole connection A vertical assembly position takes effect of their own weight. Device according to claim 14,
characterized in that
the fourth connection device (20) is designed as a projection unit (21), the free end area of which, in the assembled state, the railing support (12) bears at least in some areas on the outside against the mounted vertical handle (26). Device according to claim 20,
characterized in that
the fourth connection device (110) has two spaced-apart contact projections (112) which, in the assembled state, each abut the inside of the assembled scaffold in the connection area and thereby form an anti-rotation device. Device according to claim 19, 20 or 21,
characterized in that
the third connection device and the fourth connection device (110) are formed in one piece. Device according to one or more of claims 19 to 22,
characterized in that
the third connection device (100) and / or the fourth connection device (110) have an abutment cross-sectional contour area (120) which, in the assembled state, bears in a form-fitting manner on the outer contour of the mounted vertical stick (26). Device according to claim 23,
characterized in that
seen in a plan view, the third connection device (100) and the second connection device (110) essentially have a U-shaped cross-sectional contour, the web of the U-shaped cross-section forming the contact cross-sectional contour region (120). Device according to one or more of claims 1 to 13 or according to the preamble of claim 1, wherein the vertical stems (26) of the assembled scaffold have connecting rosettes (162) with recesses in the longitudinal direction in a predetermined pitch (R),
marked by a railing support (300, 400) which can be connected on the front to a vertical support (26) of the existing scaffolding days (50) a first connection device (150), a second connection device (130, 160), a third connection device (140), the first connection device (150) is arranged in the upper end region of the scaffold support (300, 400) and is used to connect the temporary railing spar (22), the third connection device (140) is arranged in the lower end region of the railing support (300, 400), the second connection device (130, 160) is designed to be connectable to the connection rosette (162) and to be detachably connected to the wedge head (132) by means of a wedge (134, 164), the third connection device (140) is designed as a projection device (142) with a downward-pointing pin (144) which can be inserted into a recess in a connection rosette (160), wherein the distance between the second and third connection device (90, 100) corresponds to the grid dimension (R) and the distance (A5) between the second connection device (130, 160) and the first connection device (150) is selected such that the Temporary railing rail (22) with a third connection device (18) connected is located at a predetermined height level (H) with respect to the scaffolding days (52) still to be created. Device according to claim 25,
characterized in that
the wedge (134) is captively arranged on the wedge head (132). Device according to claim 25,
characterized in that
the wedge (164) is arranged to be longitudinally displaceable on the railing support (300). Device according to claim 27,
characterized in that
there is a longitudinal displacement unit (166) connected to the wedge (164), which is designed such that it can be grasped by a person standing on the scaffolding field to be assembled.

Images