EP2188465B1 - Scaffolding comprising an anti-release device for flooring units - Google Patents

Abstract

The scaffolding (20) has a crossbeam (21) extending between vertical frame elements (22). An anti-release device (40) is connected to the crossbeam, and includes a securing member (41) i.e. rail, placed on a claw (28). The member has a plate (47) made of galvanized sheet steel and fastened by a hinge (43) around a rotary axis. A flooring unit (27) is secured against lifting from the crossbeam. The plate is pivoted from an open position into a closing- and/or locking position (50) by a plate locking appliance (60) forming a spring (61) i.e. yoke spring, and held in the position (50).

Description

The invention relates to a scaffolding with at least one, preferably in cross-section U-shaped, transverse bar which extends between two vertical scaffolding elements and connects them together, with at least one covering unit, such as a gangplank or scaffold floor, the one or more Einhängehilfsmittel , Preferably claws, for suspending the pad unit in or on the cross bar and with at least one Aushebesicherungsvorrichtung to secure the pad unit against digging, which is detachably connected to the crossbar is or is connected and the one, preferably plate-shaped, in particular elongated, preferably of metal, in particular of galvanized sheet steel, existing, securing body, preferably a rail, for placement on the Einhängehilfsmittel or on the Eingehighhilfsmitteln and / or for covering the Einhängehilfsmittels or Einhängehilfsmittel, the at least one hake N-shaped fastening element which, in the secured against excavation state by a provided in the cross bar hole, preferably by a direction the longitudinal axis of the cross bar extending slot, engages and at least partially engages behind the crossbar, and wherein the securing body at one end a fixed by a hinge, preferably about a pivot axis, in particular about a rotation axis, pivotable plate, preferably made of metal, in particular of galvanized Sheet steel, which is pivotable from both an installation as well as a removal and removal of Aushebesicherungsvorrichtung enabling opening position in a closed or securing position in which the covering unit is secured against lifting from or from the crossbar, the length of the Fuse body including the plate about the length of the cross bar corresponds.

• Durch die Ausbildung mit Haken und Langlöchern wird einerseits das Einhängen erleichtert und andererseits ohne aufwändige manuelle Schraubarbeit die vertikal wirkende formschlüssige Verbindung hergestellt. Die auf die jeweilige Länge abgestimmte Gesamtlänge mit der schwenkbaren Platte sichert die genaue Position des Sicherungskörpers, so dass die Einhängung auch langfristig gewährleistet ist. Ferner ist von oben erkennbar, ob die Ab- bzw. Aushebesicherung eingehängt und gegen Verschieben gesichert ist. Der Zwischenraum zwischen den Belageinheiten ist in seinem wesentlichen Bereich durchgehend abgedeckt, und zwar in einer Höhe, die der Lauffläche entspricht, so dass Stolperstellen vermieden werden. Diese Sicherungsvorrichtung ist leicht herstellbar und schnell ein- und aushängbar.

Such a scaffolding and such a securing device for securing against lifting or lifting fixed with Einhängehilfsmitteln on the crossbars of the scaffolding padding units is from the DE 30 20 389 C2 and became known from practice. This construction has the following advantages, among others:

• By training with hooks and slots on the one hand, the hanging is facilitated and on the other hand, without elaborate manual screwing made the vertically acting positive connection. The tuned to the respective length overall length with the pivoting plate ensures the exact position of the fuse body, so that the suspension is guaranteed in the long term. Furthermore, it can be seen from the top, whether the removal or Aushebesicherung is mounted and secured against displacement. The space between the pad units is covered throughout in its essential area, in a height corresponding to the tread so as to avoid stumbling. This safety device is easy to produce and quickly on and off.

Although this safety device has proven itself in practice, it has been shown that, due to the comparatively wide, conically tapered down to the hook end fasteners can cause problems during installation.

It is therefore an object of the invention to provide such a scaffolding with such a Aushebesicherungsvorrichtung or such Aushebesicherungsvorrichtung in an improved design, in which a collision of the hook-shaped fastener with the Einhängehilfsmittel or with Einhängehilfsmitteln the covering unit or the pad units at the assembly is avoided or prevented.

This object is achieved by the features of claim 1, wherein the hook-shaped fastening element consists of flat steel and / or secured against excavation state at least one of the height of the free hanging end of the Einhängehilfsmittels or the free Einhängeenden the Einhängehilfsmittel corresponding area, preferably substantially over its entire, preferably formed below the fuse unit, length, is bounded by parallel side surfaces extending parallel to the longitudinal axis of the fuse body in a thickness of the fastener corresponding distance to each other and that the distance of the side surfaces or the thickness of the fastener element against lifting secured condition at least in one of the height the free hanging end of the Einhängehilfsmittels or the free Einhängeenden the Einhängehilfsmittel corresponding area, preferably substantially over its entire, in particular formed below the fuse unit, length, smaller than the horizontal distance of at least two in or on one and the same cross bar opposite hinged Einhängehilfsmittel of two facing away from the crossbar in different directions and / or adjoining pad units.

If the hook-shaped fastening element consists of flat steel, this can now be made of a high-strength steel compared to the hitherto used and by cold forming or cold forming and therefore of a relatively soft, deformable steel or steel sheet fasteners. Alone by this can be higher strength or load capacity in conjunction with greater security against deformation of the hook-shaped fasteners and thus achieve greater security against tilting and / or lifting or lifting the entire Aushebesicherungsvorrichtung. Furthermore, can be achieved with such, consisting of flat steel hook-shaped fasteners viable cross-sections. If the hook-shaped fastener is made of flat steel and / or is bounded by parallel side surfaces which extend parallel to the longitudinal axis of the fuse body at a distance to each other, it is with selection of a suitable distance or a suitable thickness in contrast to the comparatively wide, conically down to the hook end tapered fasteners according to the prior art possible, a collision of the to avoid hook-shaped fastener with the Einhängehilfsmittel or with the Einhängehilfsmitteln the pad unit or pad units during assembly. In particular, even with longer crossbars, it is not necessary to pay attention to the arrangement of the individual covering units, possibly different widths, because a collision between the attachment aids of the padding units and the hook-shaped fastening element or with the hook-shaped fastening elements of the lifting-out device can now be avoided or prevented. Thus, the above measures allow greater flexibility and variability in the selection of different width covering units, especially for long crossbars, because now avoided a collision of the hook-shaped fastener or the hook-shaped fasteners with, in particular opposite, Eingehgehgehilfsmitteln of padding units or prevented can.

If the distance of the side surfaces of the hook-shaped fastening element or the thickness of the fastener in the secured against excavation state at least in one of the height of the free end of Einhängehilfsmittels or the free ends of Einhängehilfsmittel corresponding area, preferably substantially over its entire, in particular below the fuse unit formed, length, is smaller than the horizontal distance of at least two in one and the same crossbar opposite hinged Eingehighilfsmitteln of two of the crossbars in different directions away and / or adjoining pad units, the hook-shaped fastener is also readily between two opposite hanging aids Place, so that it does not depend on the width of the pad units, respectively on the arrangement or the distance of Einhängehilfsmittel the padding units. Thus, when using a matched to a certain length of a cross bar with a suitable length designed Aushebesicherungsvorrichtung over the suspension or Auflagelänge the crossbar arbitrarily wide pad units with any segmented or spaced Einhängehilfsmitteln be used.

In an advantageous embodiment, it can be provided that the hook-shaped fastening element consists of solid material. As a result, further improved strength and load capacity can be achieved.

In a particularly preferred embodiment, it may be provided that the hook-shaped fastening element is made without bending or bending, preferably without deformation, in particular by stamping. This allows a particularly cost-effective production and construction.

In a further preferred embodiment it can be provided that the end face of the free end of the fuse body with an elongated, extending in the axial direction recess for receiving a formed with or made of flat material fastening body, in particular a mounting wedge for attaching the cross bar to one of the vertical framework elements, and Front end face of the free end of the pivotable plates is provided with a same or the same recess, wherein the recesses are each designed as a recess slot, as in itself from the DE 30 20 389 C2 is known, but in addition the slot, preferably in Is substantially limited over its entire slot length, with parallel slot walls having a slot width corresponding distance to each other, which is equal to or only slightly larger than the thickness of the flat material of the mounting body, so that if only on one side of the cross bar in or is hanged on this at least one covering unit with its Einhängehilfsmittel or with their Eingehighilfsmitteln, the Aushebesicherungsvorrichtung on the flat material of the mounting body is verkantbar or tilted so that it is not or only slightly or only slightly tilted about its longitudinal axis or tilted.

To ensure this, it is expedient that the slot width is at most 25%, preferably at most 20%, in particular approximately 17%, greater than the thickness of the flat material of the fastening body accommodated in the slot.

It is understood that the aforementioned measures and features can be combined as desired within the scope of feasibility.

Further features, advantages and aspects of the invention can be taken from the following description part, in which a preferred embodiment of the invention is described in more detail with reference to FIGS.

Fig. 1

eine Seitenansicht einer erfindungsgemäßen Aus- hebesicherungsvorrichtung;

Fig. 2

eine Draufsicht der Aushebesicherungsvorrichtung gemäß Figur 1;

Fig. 3

eine vergrößerte Darstellung des mit einer verschwenkbaren Platte gebildeten und in Figur 2 mit einem Kreis markierten Endes der Aushebesi- cherungsvorrichtung;

Fig. 4

eine vergrößerte Darstellung des mit einer verschwenkbaren Platte gebildeten und in Figur 1 mit einem Kreis markierten Endes der Aushebesi- cherungsvorrichtung, wobei die verschwenkbare Platte in ihrer Sicherungsstellung gezeigt ist;

Fig. 5

eine vergrößerte Darstellung des Ausschnittes gemäß Figur 4 mit der verschwenkbaren Platte, die in eine maximale Öffnungsstellung verschwenkt ist;

Fig. 6

einen vergrößerten Querschnitt der Aushebesiche- rungsvorrichtung entlang der Schnittlinien 6-6 in Figur 1;

Fig. 7

eine Stoßstelle zweier aneinander anschließender und sich in entgegengesetzte Richtungen voneinan- der weg erstreckender Belageinheiten, die in bzw. an einem Querriegel eingehängt sind, mit der ord- nungsgemäß aufgelegten bzw. eingehängten Aushebe- sicherungsvorrichtung in Draufsicht;

Fig. 8

einen Schnitt durch die Anordnung gemäß Figur 7 entlang der Schnittlinie 8-8 in Figur 7;

Fig. 9

einen Schnitt durch die Anordnung gemäß Figur 7 entlang der Schnittlinie 9-9 in vergrößertem Maß- stab.

Show it:

Fig. 1

a side view of a hebesicherungsvorrichtung invention;

Fig. 2

a plan view of Aushebesicherungsvorrichtung according to FIG. 1 ;

Fig. 3

an enlarged view of the formed with a pivotable plate and in FIG. 2 a circle marked end of the lift-out safety device;

Fig. 4

an enlarged view of the formed with a pivotable plate and in FIG. 1 with a circle marked end of the Aushebesi- securing device, wherein the pivotable plate is shown in its securing position;

Fig. 5

an enlarged view of the section according to FIG. 4 with the pivotable plate, which is pivoted in a maximum open position;

Fig. 6

an enlarged cross section of the Aushebesicherung- tion device along the section lines 6-6 in FIG. 1 ;

Fig. 7

an abutment point of two adjacent and extending in opposite directions away from each other lining units, which are mounted in or on a crossbar, with the properly launched or hinged Aufhebsicherungungsvorrichtung in plan view;

Fig. 8

a section through the arrangement according to FIG. 7 along the section line 8-8 in FIG. 7 ;

Fig. 9

a section through the arrangement according to FIG. 7 along the section line 9-9 on an enlarged scale.

The FIGS. 7 to 9 Such a scaffolding 20 can be constructed of vertical scaffolding elements 22, which are also referred to as stems, as well as of diagonal scaffold elements and / or horizontal scaffolding elements which can be fixed thereto as a horizontal scaffolding element a cross bar 21 is shown. The diagonally and horizontally extending scaffolding elements may be connected to the vertical scaffolding elements 22 and fixed to be attached to the vertical scaffolding element 22 with a connection shoe 25 provided with a horizontal slit 25, which may preferably be a wedge head located connecting flange 23, which may be a rosette, preferably a perforated disc provided with through holes, engage around and on this or at this by means of a fastening body 26, here in the form of a mounting wedge 26, set. In the embodiment shown in the figures for this purpose the mounting wedge 26 is inserted through a respective wedge opening in an upper head part and in a lower head part of the connection head 24 as well as through a hole of the here eight through holes of the perforated disc or rosette 23. By a hard beating of the fastening wedge 26, preferably with the aid of a hammer, the transverse bar 21 shown in the figures can be firmly wedged or connected to two of the vertical framework elements 22 in a torsionally rigid manner.

In the crossbar 21 is in the in the FIGS. 7 to 9 shown embodiment, a U-shaped cross bar 21. So this has, as from FIG. 9 can be seen, in a sectional plane perpendicular to its longitudinal axis 32 has a U-shaped cross-section. It is understood, however, that also crossbars with other cross-sections, for example, round tubes, possibly in combination with other, custom-designed Einhängehilfsmitteln can be used. The transverse bar 21 having a U-shaped cross section is formed with a base or web 31, from which perpendicular to and spaced from one another and approximately parallel two support webs 29.1 and 29.2 extend in the same direction away. In the region of their free ends, the support webs 29.1 and 29.2 support edges for supporting the pad units 27. The support edges are preferably bent inward or angled. In the web or in the base 31 of the cross bar 21 are spaced from each other, here two designed as slots holes 33 are provided. Their spacing or arrangement and dimensioning is designed in such a way matched to the Aushebesicherungsvorrichtung 40 according to the invention that after the application of the securing body 41 of the Aushebesicherungsvorrichtung 40 and their engagement in the desired end position the hook parts 95.2 at the end edges of the respective hole 33 to below the base or engage the web 31 of the cross bar 21, so this then engage behind and abut directly on this or are arranged at a small distance to this.

Like also from the FIGS. 7 to 9 can be seen, one or more pad units 27; 27.1, 27.2 with help a lifting device according to the invention 40 against lifting from or out or against lifting of the crossbar 21 are secured.

The Aushebesicherungsvorrichtung 40 comprises as essential elements a, here plate-shaped, securing body 41, which is designed here as a rail and further comprises a plate 47 which is pivotally connected via a hinge 43 to the securing body 41. Further, the Aushebsicherungsvorrichtung 40, here two, hook-shaped fasteners 42 which are at an axial distance from each other on the underside 54 of the fuse body 41, preferably by welding, are attached. The plate-shaped securing body 41 is designed here as an elongated rail, which preferably consists of galvanized sheet steel. The securing plate 47 may be made of metal, preferably made of galvanized steel sheet. The connection between the plate 47 and the securing body 41 via the hinge 43. The hinge 43 is formed in the embodiment with a threaded bolt bolt 45, here a hexagonal bolt 45 and a serving to secure nut 46. The plate 47 has on the fuse body 41 associated side in the region of its two outer edges on a formed by forming, such as bending or flanging, eyelet or sleeve, through which the threaded bolt of the screw 45 is inserted therethrough.

The securing body 41 has, at its end associated with the plate 47, in an end which is assigned to both sides of the longitudinal axis 76 in a central region extending on either side of the longitudinal axis 76, likewise produced by forming, for example bending or crimping Eyelet or sleeve through which the threaded bolt of the screw 45 is also inserted therethrough.

Between the two eyelets or sleeves of the plate 47 and the eyelet or sleeve of the securing body 41, a helical part of a spring 61 formed here as a double-leg spring 61 is arranged, through which the threaded bolt of the screw 45 also extends in each case , The double leg spring 61 comprises two leg springs 61.1 and 61.2. The first leg 61.1 has a first leg 64.1 and a second leg 64.2 and the second leg spring 61.2 also has a first leg 65.1 and 65.2. The first leg 64.1 of the first leg spring 61.1 and the first leg 65.1 of the second leg spring 61.2 are integral with each other here connected or formed to form a common U-shaped leg 62. This U-leg 62 is supported on the upper side 63 of the securing body 41 in a substantially flat bearing area there, which is arranged between the two axially extending or parallel to the longitudinal axis 76 of the securing body 41 extending lateral folds 93 which a Stiffen the fuse body 41 effect. The other legs 64.2 and 65.2 of the spring 61 are supported on the upper side 55 of the plate 47. The spring 61 is arranged and dimensioned such that the spring forces of the spring 61, the plate 47 in the closing direction 48 (FIG. FIG. 5 ).

The spring 61 forms a plate securing aid 60, by means of which the plate 47 from an open position, as for example in FIG. 5 is shown in the form of a maximum opening position 49, in a closing position or securing position 50 can be gifted or pivoted ( FIGS. 4 and 8th ). The plate 47 can be pivoted against the spring force of the spring 61 from the closed or secured position 50 in one or the open position 49 only by applying increased opening forces (see arrow 63). In this way, therefore, the plate 47, when the Aushebesicherungsvorrichtung 40 is in its Aushebesicherungsstellung (see. FIGS. 7 and 8th ) held by the spring force of the spring 61 in its closed or securing position 50. Consequently, the plate 47 would not only due to its own weight, but additionally held by the spring forces of the spring 61 in the closed position 50.

For the purpose of limiting the opening movement of the plate 47 in the opening direction 57, in particular for the purpose of preventing overstretching of the spring 61 in a pivoting of the plate 47 from its closed or securing position 50 in one or the open position 49, the plate 47 with also referred to as a first stop body stop body 71 is provided, which is designed here as a stop tongue 71. This stopper body or this stop tongue 71 is integrally formed with the plate 47 and formed out of this by forming, spielsweise, by bending or crimping, in this case such that the stopper body 71 extends above a plane defined by the plate 47 level 73 and thereby the threaded spindle of the nut 46 containing the pivot axis 44 partially surrounds.

The plate 47 also has a stop body 72, also referred to as a second stop body, which serves to pivot the plate 47 in the closing direction 58 a limitation of the closing movement in the closing direction 58 to effect such that after striking the stopper body 72 at the bottom 54 of the fuse body 41 a simple assembly enabling position 59 of the plate 47 is achieved relative to the fuse body 41. In the exemplary embodiment, the plate 47 is in this position 59 in a position relative to the fuse body 41, in which the plane spanned by the plate 73 and plane spanned by the fuse body 41 level 75 are approximately parallel or in the only slight inclination angle of these levels is reached relative to each other. How out FIG. 4 As can be seen, this position 49 corresponds approximately to the closing or securing position 50. In this closing or securing position 50 or in a position differing only a slight angle in the closing direction 58 of the plate 47, the stop 72 is thus on the underside 54 of the fuse body 41 struck.

Like also out FIG. 4 can be seen, the stopper body 72 is also formed integrally with the plate 47 and is also formed out of the plate 47 by forming. In contrast to the first or other stop body 71, however, the stop body 72, which is also referred to as a second stop body, is shaped out of the plate 47 in such a way that it extends below the plane 73 defined by the plate 47. Also, the stopper body 72 surrounds the pivot pin 44 containing threaded bolt of the screw 45 of the hinge 43 partially.

How out FIG. 5 can be seen, the plate 47 respectively the stopper body 71 beats in a pivoting of the plate 47 of its closing or securing position 50 in an opening position due to the stopper body 71 at an inclination angle 74 relative to the securing body 41 or relative to a plane defined by the fuse body 41 and the longitudinal axis 76 containing level 75, which is greater than zero degrees and here is about 90 degrees. In this open position 49, therefore, the plate 47 is in its maximum open position 49, that is, in relation to, in FIG. 4 shown closed position 50 pivoted about 90 degrees in the opening direction 57 in its maximum open position 49. This ensures that the spring 61 is not overstretched, so that over a long time secure function is ensured.

By contrast, how, in particular, is off FIG. 4 it can be seen, the plate 47 is acted upon in the closing direction 58 by the spring forces of the spring 61 both in the non-installed state and in the installed state of the Aushebsicherungsvorrichtung 40, so that the plate 47 with the, preferably second, stopper body 72 at an inclination angle 77 relative to the fuse body 41 or to a plane defined by this and its longitudinal axis 76 containing level 75 abuts the underside 54 of the fuse body 41, which is about 180 degrees here.

A particular advantage of the Aushebesicherungsvorrichtung 40 is that for their installation, so for the purpose of their attachment to or in the cross bar 21 to reach a lift-off, the plate 47 does not necessarily have to be pivoted beforehand in an assembly-enabling opening position or not previously must be located in a folded in the direction of the fuse body 41 opening position, but that the plate due to the spring force of the spring 61st and due to the provision as well as the arrangement and design of the stopper 72 is already in a mounting position, in which a simple assembly when hanging and moving the fuse body 41 can be reached.

In particular from the FIGS. 1, 2 . 6 and 9 shows the arrangement and design of the two hook-shaped fasteners 42 here, preferably by means of welding (see FIG. 6 ) are secured to the underside of the fuse body 41 and the rail 41, respectively. According to the invention, the fastening elements 42 are formed from flat steel 78. In the exemplary embodiment, the fastening elements 42 are delimited essentially over their entire length 80 by parallel side surfaces 81.1 and 81.2 which extend parallel to the longitudinal axis 76 of the securing body 41 in a distance 82 corresponding to the thickness 82 of the respective fastening element 42. This thickness 82 or this distance 82 is 5 mm in the exemplary embodiment. The hook-shaped fastening elements 42 are made of solid material and are free from bending and bending, preferably without deformation, produced by punching.

The distance 82 of the side surfaces 81.1 and 81.2 or the thickness 82 of the hook-shaped fastening element 42 is substantially less than the horizontal distance 69 of two in or on one and the same cross bar 21 opposite hinged Einhängehilfsmitteln 28.1, 28.2, over its entire length 80, here claws, of two at a joint adjoining pad units 27.1, 27.2 or of two of the cross bar 21 in different directions away extending pad units 27.1, 27.2 ( FIG. 9 ). In this way, so the fastener 42 or the hook-shaped fastening elements 42, regardless of the arrangement or position of Einhängehilfsmittel 28; 28.1, 28.2 on or on the crossbar 21 not with the Eingehighilfsmitteln 28; 28.1, 28.2 collide.

Each hook-shaped fastening element 42 consists of a fastening part 95.1 and a hook part 95.2. The fastening element 42 is fastened with its fastening part 95.1 to the securing body 41. In the region of a transition between the fastening part 95.1 and the hook part 95.2, a planar contact surface 90 is provided, which is here perpendicular to the longitudinal axis 76 of the securing body 41 or perpendicular to the plane defined by this and the longitudinal axis 76 containing level 75 formed. The hook portion 95.2 of the fastener 42 extends in a direction away from the plate 47 provided with the end of the fuse body 41 direction. The hook portion 95.2 has on its upper side 98 a Aushebesicherungsfläche 98, which is here approximately parallel to the longitudinal axis 76 of the fuse body or parallel to the plane formed by the fuse body 41 and the longitudinal axis 76 containing level 75 is formed. In the secured against excavation state this top 98 and this Aushebesicherungsfläche 98 engages behind the underside or outer surface 36 of the web or the base 31 of the cross bar 21, as shown in the FIGS. 8 and 9 seen.

The end face 84 of the free end 83 of the securing body 41 is provided with an elongated, in the axial direction recess in the form of a slot 85.1, the or for receiving a formed with or made of flat material fastening body 26, in particular a Attachment wedge 26, preferably for attachment of the cross bar 21 on one of the vertical framework elements 22, suitable and is determined. The end face 88 of the free end 87 of the plate 47 is provided with a similar or the same, also designed in the form of a slot 85.2 recess 85.2.

Each slot 85.1 and 85.2 is substantially over its entire slot length 89.1, 89.2 with parallel slot walls 91 .1. 1, 91.1.2; 91. 2. 1, 91.2.2 limited, one of the slot width 92.1 or 92.2 corresponding distance 92.1 or 92.2 to each other. This distance 92.1, 92.2 is only slightly larger than the thickness 30 of the flat material of the fixing wedge 26 designed here as attachment wedge 26, so that if only on one side of the cross bar 21 in or on this at least one covering unit 27 with its Eingehighilfsmittel 28 with or their Einhängehilfsmitteln 28 is mounted, the Aushebesicherungsvorrichtung 40 on the flat material of the mounting body 26 is tilted or tilted so that it is not or only slightly or only slightly tilted about its longitudinal axis 76 or tilted.

In the exemplary embodiment, the slot width 92.1, 92.2 each 7 mm and the thickness 30 of the flat material of the fastening body 26 and the mounting wedge 26 is 6 mm. Accordingly, the slit width 92.1, 92.2 in the exemplary embodiment about 17% greater than the thickness 30 of the flat material of the fastening body 26 and the mounting wedge 26. So if, in the Aushebesicherungsstellung the Aushebesicherungsvorrichtung 40, the respective flat material of the respective mounting body 26 and the mounting wedge 26th in the slot 85.1 of the fuse body 41 or in the slot 85.2 of the plate 47, remains between the flat material of the fastening body 26 and the slot walls 91.1.1, 91.1.2; 91.2.1, 91.2.2 each only a small gap, which is here about a maximum of about 1 mm.

For the construction of the frame 20 are after attachment of the crossbar 21 to the vertical framework elements 22, in the case of an end region from one side and in the case of an intermediate region from both sides, the covering unit or the adjoining facing units 27; 27.1, 27.2 with the help of the provided on their front sides and designed here as claws Einhängehilfsmitteln 28; 28.1, 28.2 mounted on the upwardly facing flanges 29 and on the upwardly facing support webs 29.1, 29.2 of the cross bar 21 ( Fig. 9 ) and then arranged as a rail securing body 41 from above in the direction of the Einhängehilfsmittel 28.1, 28.2 placed, wherein the free end 83 of the fuse body 41 is brought down so that the hinge 43 and the plate 47 along the edges or the flat sides of the fastening wedge 26 designed as a fastening body 26 moves and the hook-shaped fastening elements 42 engage through the here designed as slots 33 holes therethrough.

The fastening elements 42 are dimensioned such that the distance between the upper side 98 and the Aushebesicherungsfläche 98 of the hook parts 95.2 from the bottom 54 and of the lower surface 54 of the fuse body 41 is preferably just so large that the hook portion 95.2 after engagement or Moving the fuse body 41 abuts in its end position on the outer surface 36 of the web or the base 31 of the cross bar 21 or only in small distance from this outer surface 36 is located. Once the fuse body 41 and the rail 41 with his or her folds 93 on the Einhängehilfsmitteln or claws 28; 28.1, 28.2 of the pad units 27; 27.1, 27.2 rests, wherein the hook-shaped fastening elements 42 engage through the slots 33 in the cross bar 21, preferably wherein the plate 47 against the spring force of the spring 61 by support or abutment on the here designed as a mounting wedge 26 mounting body 26 up or up is applied, the securing body 41 in the direction of arrow 70 (FIG. Fig. 7 ) or in one of the extension of the hook parts 95.2 corresponding direction so far shifted until the slot 85.1 of the fuse body 41 surrounds the mounting wedge 26. In a predetermined by the contact surfaces 90 of the hook-shaped fasteners 42 and their abutments on the front edges of the slots 33 in the cross bar 21 end position, or shortly before, the plate 47 automatically works in the closing direction 58 due to the spring forces of the spring 61 downward in its closing - or securing position 50, in which then also the slot 85.2 of the plate 47 surrounds a mounting wedge 26.

In this closing or securing position 50, the plate 47 prevents a displacement of the securing body 41 or the entire Aushebesicherungsvorrichtung 40 in a direction opposite to the arrow 70. Furthermore, in this end position or in this Aushebesicherungsstellung then hook parts 95.2 of the hook-shaped fasteners 42 engage under Web or the base 31 of the cross bar 21, so that a lifting of the Aushebesicherungsvorrichtung 20 and consequently the pad unit 27 and the pad units 27.1, 27.2 is prevented by the Aushebesicherungsvorrichtung 40.

LIST OF REFERENCE NUMBERS

20

Scaffolding

21

crossbars

22

vertical scaffolding / handle

23

Rosette / connection flange / perforated disc

24

Connection head / wedge head

25

horizontal slot

26

Fixing body / fixing wedge

27

Deck unit / scaffold floor / gangway

27.1

Deck unit / scaffold floor / gangway

27.2

Deck unit / scaffold floor / gangway

28

Hanging aid / claw

28.1

Hanging aid / claw of 27.1

28.2

Einhängehilfe / claw of 27.2

29

Flange / support web

29.1

support web

29.2

support web

30

Thickness of 26

31

Footbridge / base of 21

32

Longitudinal axis of 21

33

Hole / slot

36

Outer surface of 31

40

Aushebesicherungsvorrichtung

41

Fuse body / rail

42

fastener

43

hinge

44

Pivot axis / axis of rotation

45

Screw / threaded bolt

46

mother

47

plate

48

open position

49

Maximum opening position

50

Closing / securing position

53

Top of 41

54

Bottom of 41

55

Top of 47

56

Bottom of 47

57

opening direction

58

closing direction

59

Position of 47

60

Disk backup tool

61

Spring / double leg spring

61.1

Leg spring

61.2

Leg spring

62

U-shaped leg of 61

63

Arrow (opening force)

64.1

first leg of 61. 1.

64.2

second leg of 61. 1

65.1

first leg of 61.2

65.2

second leg of 61. 2

66

eyelet

67

Einhängeende

67.1

Einhängeende

67.2

Einhängeende

69

distance

70

displacement direction

71

(first) stop body / stop tongue

72

(second) stop body / stop tongue

73

level

74

tilt angle

75

level

76

Longitudinal axis of 41 and 40 respectively

77

tilt angle

78

flat steel

79

height

80

Length of 42

81.1

Side surface of 42

81.2

Side surface of 42

82

Thickness of 42 / horizontal distance between 81.1 and 81.2

83

free end of 41

84

Front side of 83

85.1

Recess / slot

85.2

Recess / slot

87

free end of 47

88

Front side of 87

89.1

Slot length of 85.1

89.2

Slot length of 85.2

90

contact surface

91.1.1

Diaphragm wall of 85.1

91.1.2

Diaphragm wall of 85.1

91.2.1

Diaphragm wall of 85.2

91.2.2

Diaphragm wall of 85.2

92.1

Slit width / distance

92.2

Slit width / distance

93

Fold of 41

94

lower end of 42

95.1

Fastening part of 42

95.2

Hook part of 42

96

distance

98

Top / recovery area of 95.2

99

plate-shaped body of 41

Claims (5)

1. Building scaffolding with at least one crossbar (21), which extends between two vertical scaffolding elements (22) and connects these together, with at least one covering unit (27; 27.1, 27.2), which comprises one or more suspension aids (28; 28.1, 28.2) for suspending the covering unit (27; 27.1, 27.2) in or at the crossbar (21), and with at least one lifting-off securing device (40) for securing the covering unit (27; 27.1, 27.2) against lifting off, which device is detachably connectible or connected with the crossbar (21) and comprises a securing body (41) for placing on the suspension aid (28) or on the suspension aids (28.1, 28.2) and/or for covering the suspension aid (28) or the suspension aids (28.1, 28.2), the safety body having at least one hook-shaped fastening element (42) which in the state of being secured against lifting-off engages through a hole (33) provided in the crossbar (21) and engages at least partly behind the crossbar (21), and wherein the securing body (41) has at one end thereof a pivotable plate (47), which is fastened by means of a hinge (43) and which is pivotable from an opening setting (49), which enables not only installation, but also removal or lifting-off of the lifting-off securing device (40), into a closed or securing setting (50), in which the covering unit (27; 27.1, 27.2) is secured against lifting-off off or from the crossbar (21), wherein the length of the securing body (41) inclusive of the plate (47) approximately corresponds with the length of the crossbar (21), characterised in that the hook-shaped fastening element (42) consists of flat steel (78) and/or in the state of being secured against lifting-off is bounded at least in a region, which corresponds with the height (79) of the free suspension end (67; 67.1, 67.2) of the suspension aid (28; 28.1, 28.2) or of the free suspension ends (67; 67.1, 67.2) of the suspension aids (28; 28.1, 28.2), by parallel side surfaces (81.1, 81.2) which extend parallel to the longitudinal axis (76) of the securing body (41) at a mutual spacing (82) corresponding with the thickness (82) of the hook-shaped fastening element, and that the spacing (82) of the side surfaces (81.1, 81.2) or the thickness (82) of the hook-shaped fastening element (42) in the state of being secured against lifting-off is smaller, at least in a region corresponding with the height (79) of the free suspension end (67; 67.1, 67.2) of the suspension aid (28; 28.1, 28.2) or of the free suspension ends (67; 67.1, 67.2) of the suspension aids (28; 28.1, 28.2), than the horizontal spacing (69) of at least two suspension aids (28.1, 28.2), which are suspended at one and the same crossbar (21), from two covering units (27.1, 27.2) extending away from the crossbar (21) in different directions and/or connecting with one another.
2. Building scaffolding according to claim 1, characterised in that the hook-shaped fastening element (42) consists of solid material.
3. Building scaffolding according to claim 1 or 2, characterised in that the hook-shaped fastening element (42) is produced, particularly by punching, free of folding or bending, preferably free of deforming.
4. Building scaffolding according to any one of claims 1 to 3, characterised in that the crossbar (21) is fastened to a vertical scaffolding element (22) of the vertical scaffolding elements (22) with the help of a fastening body (26), particularly a fastening wedge (26), formed with or from flat material, and that the end face (84) of the free end (83) of the securing body (41) is provided with an elongate recess (85.1), which extends in axial direction, for receiving the fastening body (26), and that the end face (88) of the free end (87) of the pivotable plate (47) is provided with an equivalent or identical recess (85.2), wherein the recesses (85.1, 85.2) are each formed as a slot (85.1, 85.2) which is bounded, preferably substantially over the entire slot length (89.1, 89.2) thereof, by parallel slot walls (91.1.1, 91.1.2, 91.2.1, 92.2.2) which have a mutual spacing (92.1, 92.2) which corresponds with the slot width (92.1, 92.2) and which is the same size as or only slightly larger than the thickness (30) of the flat material of the fastening body (26) so that when at least one covering unit (27) is suspended by the suspension aid (28) or suspension aids thereof in or at the crossbar (21) only on one side thereof the lifting-off securing device (40) is tiltable or tilted at the flat material of the fastening body (26) in such a manner that it does not tip or is not tipped about the longitudinal axis (76) thereof or tips or is tipped only slightly or only insubstantially about the longitudinal axis (76) thereof.
5. Building scaffolding according to claim 4, characterised in that the slot width (92.1, 92.2) is greater by at most 25%, preferably at most 20%, particularly approximately 17%, than the thickness (30) of the flat material, which is received in the slot (85.1, 85.2), of the fastening body (26).

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