EP2132388B1 - Coating unit having lift-off protection and method for securing a coating unit against lift-off and method for releasing a coating unit secured against lift-off - Google Patents

Abstract

A coating unit (20), comprising a lift-off protection (25) that is fastened in a face end region (21) of the coating unit (20) and is formed by a securing pivot lever (26), which can be manually pivoted about a pivot axis (27), which in the usage position (22) of the coating unit (20) is vertical, from an open position, in which the coating unit (20) can be placed onto a horizontal carrier (30) or lifted off therefrom, into a closed or lift-off protection position (31), and vice versa, in which the coating unit (20) is secured against lift-off from the carrier (30) when it is placed on the carrier (30). At least in the closed or lift-off protection position (31’) thereof, the securing pivot lever (26) is secured by a spring-elastic detent element (35) against accidental pivoting about the pivot axis (27) in an engagement position (29) such that pivoting of the securing pivot lever (26) about the pivot axis (27) from the closed or lift-off protection position (31) into the open position is only possible by applying an increased pivoting force. The invention also relates to a method for securing a coating unit (20) against lift-off from a carrier (30) and to a method for releasing a coating unit (20) that is secured against lift-off.

Description

The invention relates to a covering unit, in particular a scaffold covering unit, preferably a scaffolding floor, with at least one lift-off protection fastened in a front end region of the covering unit, which is formed with a securing pivoted lever, which is manually, preferably without tools, in the position of use of the covering unit, preferably vertical pivot axis. in particular rotation axis, from an open position in which the covering unit on a horizontal support, in particular a bolt, preferably a cross bar, for example a scaffold tube, can be placed or lifted off, in a closing or Abhebesicherungsstellung is pivotally, and vice versa, in which the Covering unit, when placed on the support, is secured against lifting from the support.

The invention also relates to a method for securing a pad unit against lifting of a carrier according to claim 13 and to a method for unlocking a pad unit secured against being lifted off a carrier according to claim 14.

Padding units are often used in the field of scaffolding, stairs, podiums, grandstands or similar supporting structures or space structures. The padding units are usually placed on horizontal supports, in particular bolts, preferably crossbars, for example scaffold tubes, which are preferably round tubes or U-profiles, or suspended there by means of suspension aids. The pad units must be secured against lifting or taking off, as an unintentional, in particular caused by wind forces, lifting can lead to serious accidents and injuries.

To secure pad units has been used in the past unit a variety of different auxiliary structures. Among them are such constructions in which in the front end of the padding units manually, preferably tool-free, actuatable securing elements about an opening position in the pad unit vertical pivot axis of an open position in which the pad unit can be lifted or placed, in a Abhubsicherungsstellung are pivoted in which the Securing elements, the horizontal support, respectively scaffolding tubes, engage under.

Such a construction is for example from the DE 198 38 625 A1 known. There is a Locking lever with the aid of this encompassing securing tab on the vertical end face of a scaffold floor between the locking tab and the vertical face of the scaffold floor manually, preferably without tools, rotatably clamped. The safety lever is angled both at its upper end, as well as at its lower end in approximately equal directions. In the Abhebesicherungsstellung overlap both the angled upper end of the safety lever and the angled lower end of the safety lever the scaffolding tube. In this way, a lift-off is realized.

Another construction of the copyright holder herself has become known from practice. In this case, a thin, elongated sheet metal strip is riveted to a lower horizontal wall of a front end profile designed as a cross cap in the use position of a scaffolding floor. The metal strip can be rotated manually, preferably without tools, by 360 degrees about the mediated by the rivet vertical axis of rotation, so that the metal strip can be rotated among other things in an open position in which the scaffold floor provided with hooks lifted from a scaffold tube or placed there or . Can be hung in a Abhubsicherungsstellung be pivoted, in which the metal strip engages under resting on the scaffold tube or there scaffold floor, the scaffolding tube, so that then the scaffold floor is secured against lifting.

Common to both designs is the disadvantage that the safety lever, at least initially, heavy, possibly only with the help of a tool, such as a Hammers, can be twisted. In the course of use, so after repeated actuation of the safety lever, it may over time to loosen the clamping of the respective safety lever to a free rotation of the same, whereby the respective safety lever can then be easily rotated manually without the use of a tool However, it may then come to an inadvertent release of the safety lever, ie the same unintentional pivoting of the Abhubsicherungsstellung in a Abhub- or open position, so that then the scaffold floor is no longer secured against lifting. This represents a significant safety risk. In addition, in both constructions during installation and removal of the scaffolding floor to obstructions due to over time to easy rotation of the safety lever come.

Also WO-A-2006086989 , which is regarded as the closest prior art to the invention, already shows a covering unit according to the preamble of claim 1.

It is therefore an object of the invention to provide a covering unit with lift-off protection or a lift-off protection of a covering unit with which the above disadvantages are avoided. In particular, it is an object of the invention to provide a pad unit with a lift-off pivoting lever which offers the possibility of being used from the beginning over the entire operating time, ie. H. at any time, can be easily manually pivoted, but still, at least in the closing or Abhebesicherungsstellung, is secured against unintentional pivoting about its pivot axis.

This object is achieved by a covering unit with the features of the characterizing part of claim 1, in particular characterized in that the securing pivot lever at least in his Closing or Abhebesicherungsstellung by means of a resilient locking element, preferably with formation of a positive locking, is secured against unintentional pivoting about the pivot axis in a first engagement position, such that pivoting of the backup pivot lever about the pivot axis of the closing or Abhebesicherungsstellung in the open position only possible by applying an increased pivoting force.

By providing such a resilient latching element, by means of which a preferably positive locking in a safety latching position is possible, a safe and reproducible safety latching position at any time and a possibility for an otherwise substantially free rotation of the fuse Swing lever to reach about its pivot axis from the beginning or at any time. By using such a resilient latching element, an audible latching can be achieved in a latching position, so that thereby additionally be signaled to the user that the lift-off in the desired position, d. H. here the closing or Abhebesicherungsstellung is located.

According to a preferred embodiment may be additionally provided that the securing pivot lever is secured in its open position by means of one or the resilient latching element, preferably to form a positive locking against unintentional pivoting about the pivot axis in a second latched position, such that a pivoting of the backup pivot lever to the Pivot axis of the open position in the closing or Abhebesicherungsstellung only under application of an increased pivoting force is possible. In this way, a releasable locking by means of or another resilient locking element in at least one or the opening detent position can be achieved, whose position from the beginning, that is clearly defined at any time. There, too, can be signaled by an audible click the user additionally that the lift-off in the desired position, is now in one or the open position.

In a preferred embodiment, it may be provided that the securing pivot lever carries the latching element fastened or mounted on or in the latter. In this way, therefore, the locking element can also be pivoted about the pivot axis with a pivoting of the securing pivot lever about its pivot axis. However, it is understood that the latching element can also be provided on or in a separate part, in particular a part provided in the front end region of the pad unit, preferably a front end profile, the pad unit or even on or in the carrier itself.

According to a particularly preferred embodiment it can be provided that the securing pivot lever has a first lever arm extending transversely, preferably vertically, away from the pivot axis in a first direction and a second lever arm extending transversely, preferably from the pivot axis, in a second direction perpendicular, in particular in an opposite direction, away, and that the at least one locking element either in or on the second lever arm, preferably in Region whose free end, is attached or stored or that the at least one latching element engages resiliently on the second lever arm. In this way, advantageous lever arm ratios and corresponding pivoting forces can be achieved for the purpose of unlocking or unlocking the resilient latching element.

It may be of particular advantage if the one or each fuse pivot lever is associated with a single locking element or if the or each fuse pivot lever includes a single resilient latching element.

According to a particularly preferred embodiment, it may be provided that the single latching element allows both a locking of the securing pivot lever in a safety latching position in which it is secured against pivoting about its pivot axis from its closing or Abhebesicherungsstellung in one or the open position is as well as a locking of the securing pivot lever in an opening-Einraststellung allows in which the securing pivot lever is secured against pivoting about its pivot axis from the open position to a or the Abhebesicherungsstellung. By integrating these functions, a particularly cost-effective and robust construction can be achieved.

Furthermore, according to a further preferred embodiment, it can be provided that the latching element in the or in the respective latching position in an opening, in particular in a hole or in a bore, preferably a part provided in the front end region of the covering unit, in particular Stirnendprofils, the covering unit, positively locked. Such a construction can be realized in a particularly simple and cost-effective manner.

In a particularly preferred development it can be provided that in a provided in the front end region of the pad unit, preferably Stirnendprofil the pad unit, at least a first opening for locking the resilient latching element in one or in the safety latching position of the fuse pivot lever and at least one second opening is provided for engaging one or the resilient latching element in one or the opening-latching position of the securing pivot lever, wherein the openings are spaced from each other to the pivot axis and spaced from each other and offset relative to the pivot axis by a circumferential angle to each other. In accordance with this predetermined or predeterminable circumferential angle, it is then possible to realize defined angular positions of the securing engagement position (s) and of the opening engagement position (s) of the securing pivot lever.

In a special development it can be provided that the circumferential angle is about 90 degrees. Accordingly, a securing engagement position and an opening engagement position can be defined for the backup pivot lever, which clearly signals to the user the respective end position, ie whether the safety pivot lever in a closing or Abhebesicherungsstellung or in an open position located.

According to a further advantageous embodiment it can be provided that the or each opening is designed in each case as a slot whose longitudinal axis extends transversely, preferably perpendicularly, to the pivot axis of the securing pivot lever, preferably the pivot axis intersects. As a result, favorable production conditions as well as advantageous unlocking conditions can be achieved with comparatively narrowly defined or tolerated locking angle positions for the securing engagement position and for the opening engagement position.

According to a particularly preferred embodiment, it may be provided that the resilient detent element is formed with a pressure piece acted upon by a spring, in particular a compression spring, preferably in the form of a bolt or a ball, or that it is in the resilient detent element by means of a compression spring acted upon pressure piece, preferably in the form of a bolt, in particular in the form of a ball acts. Such a locking element can be particularly simple and inexpensive to provide, and allows for a long time safe operation of the anti-lifting device.

In a specifically advantageous development can be provided that the spring and the pressure piece are received in a cavity of a hollow body, which has a pressure piece against falling out over-locking part which engages over the cavity, wherein the pressure piece acted upon by the spring force of the spring to form pressure forces rests against the overlapping part when the securing pivot lever in one of its detent positions, ie in particular in the securing engagement position and / or in the opening engagement position.

It is understood, however, that the pressure piece does not necessarily have to rest against the overlapping part in these latching positions, but rather that the pressure piece has to be sufficiently latched or latched in the respective latching position.

According to an advantageous development, it can be provided that the hollow body containing the spring and the pressure piece is fastened, preferably pressed, in an opening or bore, in particular of the securing pivot lever. This allows a particularly cost-effective production in conjunction with a production in particularly reproducible, tight manufacturing tolerances.

Furthermore, it may be advantageous if the securing pivot lever is fastened with the aid of a fastening means containing the pivot axis to a part provided in the front end region of the covering unit, preferably front end profile, of the covering unit.

A particularly cost-effective production can be achieved if a rivet is used as the fastening means. Such a rivet may be particularly preferably freely rotatable, ie non-clamping connected to the, preferably designed as Stirnendprofil, part of the covering unit. As a result, from the beginning, ie at any time, a special smoothness when pivoting the securing pivot lever can be achieved about its pivot axis. The ease of movement can be further improved by a washer, preferably made of plastic, in particular polyamide, is disposed between the securing pivot lever and that part to which the securing pivot lever is attached. The bore of this washer is then interspersed in the mounted state of the pivot axis of the fuse pivot lever.

It is particularly advantageous if the securing pivot lever is fastened to and / or mounted on a horizontal lower wall, which is in the position of use of the covering unit, of the part provided in the front end region of the covering unit, preferably the front end profile. It is understood, however, that the securing pivot lever, for example, on a vertical position in the use position of the pad unit side or end wall of the provided in the front end region of the pad unit, preferably Stirnendprofils, the pad unit, attached and / or stored.

In a preferred embodiment, it may be provided that the part or end face profile is a cross cap made of metal, preferably of galvanized sheet steel. This not only enables a cost-effective and particularly robust overall construction of a covering unit, but also enables a secure, fixed attachment and / or mounting of the securing pivoting lever.

For the purpose of an even clearer definition of the limits or positions of the closing or Abhebesicherungsstellung one hand, and the open position of the pivot lever on the other hand, it can be provided that the fuse pivot lever at least one, preferably extending transversely to its longitudinal axis and parallel to the pivot axis, in particular in the position of use of the vertical unit in the vertical direction extending first stop, which upon pivoting of the fuse pivot lever about its pivot axis in a first pivoting direction of one or the open position in the closing or Abhebesicherungsstellung, further pivoting of the securing pivot lever in this first pivoting direction on the closing or Abhebesicherungsstellung addition into a further open position, in particular by abutment on one or in the front end region of the covering unit provided part, preferably Stirnendprofil , the covering unit, preferably by striking a front in the position of use of the covering unit, vertical end transverse wall of one or in the front end region of the covering unit provided part, preferably Stirnendprofils, the covering unit prevented.

Additionally or alternatively, it can be provided that the securing pivoted lever has a stop, preferably extending transversely to its longitudinal axis and parallel to the pivot axis, in particular in the position of use of the pad unit in the vertical direction, possibly a second stop, which upon pivoting of the securing -Schwenkhebels about its pivot axis in one, possibly second, pivoting direction of the closing or Abhebesicherungsstellung in one or the open position of Weiterverschwenken the fuse pivot lever in this, possibly second, pivoting direction, in particular by hitting one or the front end the covering unit provided Part, preferably Stirnendprofil, the covering unit, preferably by striking a front in the use position of the fitting unit front, vertical Stirnquerwand one or provided in the front end region of the covering unit part, preferably Stirnendprofils, the covering unit prevents.

In a particularly advantageous embodiment, it can be provided that the first stop and the second stop are part of a common stop body of the backup pivot lever, so that can be realized with a single stop body both end stop positions. The first stop and the second stop, if necessary, the common stop body, may or may preferably be designed in the form of a nose.

It is particularly advantageous if the first stop and the second stop, preferably the common stop body, are arranged on the securing pivot lever and if the securing pivot lever is arranged on a part, preferably Stirnendprofil, the covering unit, is attached and / or stored, that the securing pivot lever is pivotable about its pivot axis about a pivot angle of a maximum of 180 degrees, in particular of at most 100 degrees, preferably of at most about 90 degrees.

A particularly robust and stable construction of a safety pivot lever, with which even high loads, especially high wind loads, can be safely absorbed, can be achieved in that the safety pivot lever essentially made of cast metal, in particular zinc die-cast, temper - or steel casting exists.

The fuse pivot lever can be painted or powder coated in a signal color. In this way, the status (open / closed) of the ground protection system is already visible from afar.

In a preferred construction of a covering unit, it can be provided that these are at least in the region of a front end region, preferably on a part provided there, in particular Stirnendprofil, the covering unit, over the Stirnendbereich projecting Einhängehilfsmittel, preferably hooks, for placing the covering unit on or for suspending the covering unit on a horizontal support, in particular bolt, preferably crossbar, for example, scaffold tube, and that in the front end region, preferably on a part, in particular on a Stirnendprofil, the pad unit, mounted and / or mounted safety pivot lever when the pad unit on their Eingehighehs on or placed on the support or hooked to this, the support engages under. In this way, in the AbhebeSicherungsstellung the carrier between the Einhängehilfsmitteln one hand, and the safety pivot lever on the other hand secured against a lifting of the pad unit of the carrier or clamped.

It is particularly advantageous if the covering unit in the region of two of their front end regions extending in opposite directions away from one another, preferably on parts provided there, in particular front end profiles, of the covering unit, via this Stirnendbereiche projecting Einhängehilfsmittel, preferably hooks, for placing the covering unit on or for suspending the covering unit on two horizontal supports, in particular bars, preferably cross bars, for example scaffolding tubes, and that the covering unit is equipped with at least two such, preferably identically or identically designed, securing pivoting levers, of which a first securing Pivoting lever in a first end face region, preferably at a there provided first Stirnendprofil, attached and / or stored and of which a second securing pivot lever in a second Stirnendbereich, preferably provided there second Stirnendprofil, attached and / or stored, each fuse pivot lever in its closing or Abhebesicherungsstellung when the pad unit is placed on their hanging aids on or on the support or hooked on this, engages under the horizontal support.

The invention further relates to a scaffold, podium, staircase, tribune or the like supporting structure or space frame, with at least two horizontal beams, in particular bars, preferably cross bars, for example scaffold tubes, on or on which a covering unit according to at least one of claims 1 to 11 launched or . Hinged, which at two of them in opposite directions away from each other wegerstreckende Stirnendbereichen, preferably at respectively provided there parts, in particular Stirnendprofilen, the covering unit, in each case at least one such securing pivot lever.

The invention also relates to a method for securing a covering unit, in particular a scaffold covering unit, preferably a scaffold floor, against lifting of a horizontal support, in particular bolt, preferably crossbar, for example scaffolding tube, wherein a, in particular according to at least one of claims 1 to 11 designed, covering unit with the aid of a backup pivoting lever formed lift-off by manual, preferably tool-free , Pivoting the securing pivot lever to a in the position of use of the pad unit, preferably vertical, pivot axis, in particular axis of rotation, from an open position in which the pad unit can be placed on the horizontal support or can be lifted, after placing or attaching the pad unit on or . Is pivoted to the carrier, in a closing or Abhebesicherungsstellung and also in a securing engagement position in which in the course of manual pivoting of the fuse pivot lever about its pivot axis a resilient locking element a positive locking of Sic herungs pivot lever, preferably on a supporting part, in particular Stirnendprofil, the pad unit causes, so that then the backup pivot lever can be pivoted only under application of increased pivoting force from its closing or Abhebesicherungsstellung in the open position.

The invention also relates to a method for unlocking a, in particular according to at least one of claims 1 to 11 designed, covering unit, in particular a scaffold covering unit, preferably a scaffold floor, the or by means of a safety pivot lever formed Abhebesicherungsmittels against lifting of a horizontal Carrier, in particular bars, preferably crossbar, for example, scaffold tube, is secured, wherein the securing pivot lever starting from a closing or Abhebesicherungsstellung in which the covering unit against lifting of the carrier to form a caused by a resilient locking element positive locking of the securing pivot lever, preferably on a supporting part, in particular Stirnendprofil, the covering unit, is secured in a securing engagement position, the backup pivot lever manually, preferably without tools, with application of increased pivoting force and simultaneously unlocking or unlocking the resilient latching element, is pivoted from the closing or Abhebesicherungsstellung in an open position in which the covering unit can be lifted from the carrier.

In an advantageous embodiment of this method can be provided that in the course of manual pivoting of the fuse pivot lever about its pivot axis of the closing or Abhebesicherungsstellung in the open position, then a resilient locking element or the resilient locking element a positive locking of the fuse pivot lever, preferably on a wear this part, in particular Stirnendprofil, the pad unit, effected in an opening detent position, so that then the backup pivot lever can only be pivoted or swung out by exercising an increased pivoting force from this open position.

Fig. 1:

Eine Unteransicht eines Ausschnittes einer erfindungsgemäßen Belageinheit im Bereich einer ihrer Stirnendbereiche, mit einer an einem Querversteifungsprofil befestigten, erfindungsgemäßen, mit einem Sicherungs-Schwenkhebel ausgebildeten Abhebesicherung;

Fig. 2:

Einen Längsschnitt der Belageinheit entlang der Schnittlinien 2-2 in Fig. 1;

Fig. 3:

Eine vergrößerte Unteransicht von stirnendseitigen Teilen der mit Einhängehaken versehenen Belageinheit gemäß Fig. 1, mit dem Sicherungs-Schwenkhebel in einer Schließ- bzw. Abhebesicherungsstellung, in welcher die Belageinheit gegen Abheben von einem Träger gesichert ist;

Fig. 4:

Eine der Fig. 3 entsprechende Darstellung, wobei sich der Sicherungs-Schwenkhebel nunmehr in einer gegenüber der Schließ- bzw. Abhebesicherungsstellung um etwa 90 Grad, hier im Uhrzeigersinn, verschwenkten Öffnungsstellung befindet, in welcher die Belageinheit von dem Träger abhebbar ist;

Fig. 5:

Eine stark vergrößerte Seitenansicht von stirnendseitigen Teilen der Belageinheit gemäß Fig. 2, zur Veranschaulichung von Details des sich in seiner Schließ- bzw. Abhebesicherungsstellung befindlichen Sicherungs-Schwenkhebels;

Fig. 6:

Einen Längsschnitt entlang der Längsachse des an dem Querversteifungsprofil der Belageinheit befestigten Sicherungs-Schwenkhebels, in einer Einraststellung, in welcher ein an dem Sicherungs-Schwenkhebel befestigtes und von diesem getragenes, federelastisches Rastmittel mit seinem federbeaufschlagten Druckstück formschlüssig in einem in dem Querversteifungsprofil angebrachten Durchgangsloch, nur durch erhöhte Verschwenkkräfte wieder lösbar, eingerastet ist;

Fig. 7:

Einen der Darstellung in Fig. 6 entsprechenden Längsschnitt des Sicherungs-Schwenkhebels, der jedoch nunmehr in eine Zwischenstellung verschwenkt ist, in welche das federelastische Rastmittel und folglich der Sicherungs-Schwenkhebel nicht gegen ein Verschwenken um seine Schwenkachse verrastet ist, also um seine Schwenkachse im Wesentlichen frei drehbar ist;

Fig. 8:

Eine stark vergrößerte Seitenansicht des Sicherungs-Schwenkhebels gemäß Fig. 9 von rechts;

Fig. 9:

Eine Draufsicht des Sicherungs-Schwenkhebels;

Fig. 10:

Eine Ansicht des Sicherungs-Schwenkhebels gemäß Fig. 8 von oben.

Further advantages, features and aspects of the invention will become apparent from the following description part, in which a preferred embodiment of the invention with reference to the figures.

Fig. 1:

A bottom view of a section of a covering unit according to the invention in the region of one of its front end regions, with an attached to a transverse stiffening profile according to the invention, formed with a safety pivot lever lift-off;

Fig. 2:

A longitudinal section of the covering unit along the section lines 2-2 in Fig. 1 ;

3:

An enlarged bottom view of front end parts provided with hooks covering unit according to Fig. 1 with the securing pivoted lever in a closing or Abhebesicherungsstellung in which the covering unit is secured against lifting from a carrier;

4:

One of the Fig. 3 corresponding representation, wherein the securing pivot lever is now in a relation to the closing or Abhebesicherungsstellung by about 90 degrees, here in the clockwise direction, pivoted open position, in which the covering unit can be lifted from the carrier;

Fig. 5:

A greatly enlarged side view of front end parts of the covering unit according to Fig. 2 to illustrate details of the located in its closing or Abhebesicherungsstellung safety pivot lever;

Fig. 6:

A longitudinal section along the longitudinal axis of the attached to the transverse reinforcing profile of the covering unit securing pivot lever, in a latching position, in which a secured to the fuse pivot lever and supported by this, resilient locking means with its spring-loaded pressure piece form fit in a mounted in the transverse reinforcing profile through hole, only is releasably engaged by increased Verschwenkkräfte;

Fig. 7:

One of the presentation in Fig. 6 corresponding longitudinal section of the securing pivot lever, which, however, is now pivoted to an intermediate position in which the resilient latching means and thus the backup pivot lever is not locked against pivoting about its pivot axis, that is about its pivot axis is substantially free to rotate;

Fig. 8:

A greatly enlarged side view of the fuse pivot lever according to Fig. 9 from the right;

Fig. 9:

A plan view of the fuse pivot lever;

Fig. 10:

A view of the fuse pivot lever according to Fig. 8 from above.

In particular in the Figures 1 and 2 Covering unit 20 shown is a gangplank or a scaffold floor 20. From this, a section is in the region of one of its two narrow longitudinal end faces shown. The scaffold floor 20 is, possibly with the exception of each frontally provided auxiliary structures and Einhängehilfsmitteln 66, which is here hooks 66.1, 66.2, symmetrical to its longitudinal center axis 74 and also symmetrical to its perpendicular thereto, not shown in the figures , Cross-axis designed.

Apart from the anti-lift device 25 and of these associated parts, the covering unit and the Einhängehilfsmittel can in particular as in the DE 198 58 969 A1 or the parallel EP 1 010 838 A1 or as in the DE 198 58 970 A1 or the parallel EP 1 010 837 A1 but also like in the DE 102 54 033 A1 or the parallel EP 1 426 523 A1 be designed, the content of which is included in full for the sake of simplicity at this point.

The covering unit or the scaffold floor 20 comprises a, preferably in the roll bending process produced, bottom profile part 48 made of sheet steel. The bottom profile part 48 has at its two longitudinal sides in each case a longitudinal edge spar 23.1, 23.2, which is integrally connected or designed with a running surface and working surface 58 having tread plate 75 or are. At both longitudinal end faces of the bottom profile part 48, a cross-stiffening profile 42 in the form of a transverse cap or a cross-connection cap 43, which is also referred to as a front end profile, is inserted into this. Whose connecting leg are with the horizontal position in the use position 22 of the pad unit 20 tread 75, the vertical position in use position 22 side walls 57.1, 57.2 of the longitudinal edge spars 23.1, 23.2 and provided with front side separate tabs 24.1, 24.2 respectively via local Joining or connecting structures 33 firmly connected. The latter can be produced in a concrete embodiment by electrical resistance welding or spot welding.

At the in use position 22 of the pad unit 20 vertical front transverse wall 59 of the transverse reinforcement cap 43 are each two hooks 66.1, 66.2 welded. These are designed here for hanging on or on a carrier also referred to as a horizontal round tube or scaffolding tube 30 of a scaffold optimized. It is understood, however, that the hooks can also be designed optimized for hanging on or in Horizontalriegeln, each of which can be designed as an upwardly open U-profile with two lateral vertical legs. It is further understood that the horizontal support can also be designed with other than round or U-shaped cross sections and / or that differently shaped Einhängehilfsmittel can be used. Thus, it is also conceivable that as Einhängehilfsmittel at the front ends of the pad unit mounted recesses or through holes may be provided so that the pad unit attached to or on pin or pin-shaped receiving elements, preferably plugged, which may be vertically upstanding on a support , Riegel, scaffolding tube or the like may be attached.

According to the invention, it is provided that the covering unit 20 is provided with at least one lift-off safeguard 25 fixed in its front end region 21, which is formed with a securing pivoted lever 26 which, manually, preferably without tools, pivots about a vertical pivot axis 27 in the position of use 22 of the covering unit 20. at the time of it Here is a vertical axis of rotation 27, from an open position 28 ( Fig. 4 ), in which the covering unit 20 can be placed on or lifted off a horizontal support 30, in particular a bolt, preferably a transverse bolt, for example a scaffold tube 30, into a closing or lifting-off position 31 (FIG. FIGS. 1, 2 and 3 ), and vice versa, in which the covering unit 20, when placed on the carrier 30 ( Figures 2 and 3 ) is secured against lifting from the carrier 30.

In the specific exemplary embodiment according to the invention, the securing pivoted lever 26 is connected via a fastening means 60, here in the form of a rivet or tubular rivet 61 (cf. FIGS. 5 to 7 ) attached to a in use position 22 of the pad unit 20 horizontal bottom wall 47 of acting as a transverse reinforcing profile 42 cross-connection cap 43 and stored. For this purpose, a through hole 76 is provided in the bottom wall 47, through which the rivet 61 is inserted therethrough. The rivet 61 or the pivot axis 27 containing the pivot axis 27 of the securing pivot lever 26 is or are arranged eccentrically offset relative to the longitudinal center axis 74 of the covering unit 20. This enables advantageous stacking ratios of similar or identical covering units to be stacked on one another. The securing pivot lever 26 has a bore 72 through which the rivet 61 is inserted through in the assembled state. In order to facilitate the pivoting of the securing pivot lever 26 about its pivot axis 27, a washer 67 is arranged between the securing pivot lever 26 and the lower wall 47. This may preferably consist of plastic, in particular of polyamide. The washer 67 has a Through hole through which the rivet 61 is also inserted through. The rivet 61 has two rivet heads 71.1 and 71.2. The first rivet head 71.1 is formed here flat and engages over the safety pivot lever 26. The here in cross section semicircular second rivet head 71.2 engages over the bore wall of the projected into the bottom wall 47 through hole. The rivet 61 is made with its rivet heads 71.1 and 71.2 in such a way that the distance between the two rivet heads 71.1 and 71.2 is slightly greater than the sum of the amounts of the thickness of the bottom wall 47, the thickness of the washer 67 and the thickness of the fuse In this way it is achieved that the rivet 61 is substantially free or even freely rotatably connected to the bottom wall 47 of the cross-linking cap 43 and secured thereto. In this way, from the beginning, ie at any time, a particularly easy pivoting or rotation of the fuse pivot lever 26 to ensure its pivot axis 27, so that the backup swivel lever always manually and without any tool would be required to be pivoted about its pivot axis 27.

The securing pivot lever 26 is preferably made of cast metal, in particular zinc die-cast, temper or cast steel.

The securing pivot lever 26 comprises two lever arms 37.1 and 37.2. The first lever arm 37.1 functioning as a securing arm extends, starting from the pivot axis 27 of the securing pivot lever 26, in a first direction 36.1 and the second lever arm 37.2 acting as a latching arm extends starting from the pivot axis 27 of the securing pivot lever 26 in a second direction 36.2, in this case opposite to the first direction 36.1.

The fastening position of the securing pivot lever 26 on the lower wall 47 and the length of the first lever arm 37. 1 of the securing pivot lever 26 acting as the securing arm are designed to be coordinated with one another such that the securing pivot lever 26 is in its closing or lifting-off position 31 (FIG. FIGS. 1 to 3 ) engages below the carrier 30 designed here as a round scaffolding tube to beyond the center axis.

In the region of the free end 39 of acting as a latching arm second lever arm 37.2 of the fuse pivot lever 26 designed as a blind hole 56 is provided. In this is a cup-shaped hollow body 52, here by pressing, attached. The here cylindrical inner walls of the hollow body 52 define a cavity 53 in which a compression spring 49 and designed as a ball 51 pressure piece 50 are added. In this case, the compression spring 49 is supported at one end on the bottom of the hollow body 52, while at the other end is supported on the pressure piece 50 and the ball 51. In order to avoid that the ball 51 and the compression spring 49 can fall out of the hollow body 52, this is designed like a cage. For this purpose, the hollow body 52 has a cavity 53 partially overlapping over-grip part 54. The overlapping part 54 has an opening 68, the opening diameter 69 is smaller than the outer diameter 70 of the ball 51. In this way, therefore, the ball 51 and also on this inside supporting compression spring 49 does not fall out of the hollow body 52. The compression spring 49 is with her Federweg tuned designed so that it pushes the ball 51 under the exertion of compressive forces 55 against the overlapping part 54, so that the ball 51 acted upon by the spring force of the spring 59 to a certain extent on the overlap part 54 protrudes outwardly, if they do not by outer limits or forces is prevented.

The compression spring 49 and the ball acting as a pressure piece 50 51 are part of a resilient latching element 35 and form a resilient locking element 35. This serves to the safety pivot lever 26 both in its closing or Abhebesicherungsstellung 31 (FIGS. FIGS. 1 to 3 ) as well as in its opposite about 90 degrees about the pivot axis 27 pivoted open position by positive, but releasable locking against inadvertent pivoting about its pivot axis 27 to secure such that pivoting of the backup pivot lever 26 about its pivot axis 27 both of the Closing or Abhebesicherungsstellung 31 in the open position 28 and from the open position 28 in the closing or Abhebesicherungsstellung 31 only under application of an increased pivoting force is possible. The height of the pivoting force is determined inter alia by the spring characteristic of the spring 49 and by the shape of the pressure piece 50 and the shape of the openings or holes or holes 40.1 and 40.2, which are provided here on or in the bottom wall 47 of the cross connection cap 43 , In particular in FIG. 6 It can be seen that in the latching position shown there, which acts as a pressure piece 50 ball 51 is engaged in the opening 40. The shape of the opening 40 and the two openings 40.1 and 40.2 and their arrangement is particularly from the FIGS. 3 and 4 out. Each opening 40.1 and 40.2 is here as one Slot 45.1 and 45.2 designed. Their longitudinal axes 46.1, 46.2 each extend perpendicular to the pivot axis 27 of the securing pivot lever 26 and intersect the pivot axis 27 respectively. The slots 45.1 and 45.2 are each spaced from the pivot axis 27 and also spaced from each other and relative to the pivot axis 27 offset by a circumferential angle 44 to each other, which is about 90 degrees here. In this way, therefore, a securing engagement position 32 can be specified through the opening 40.1, in which the resilient latching element 35, respectively acting as a pressure piece 50, spring-mounted ball 51 there can positively engage or can be latched.

In contrast, through the second opening 40.2 or through the second slot 45.2, the longitudinal axis 46.2 is arranged approximately perpendicular to the longitudinal axis 46.1 of the first elongated hole 45.1, an opening-Einraststellung be set 29, in which then when the fuse pivot lever 26 is pivoted into its open position 28 or has been given away, the resilient latching element 35, respectively acting as a pressure piece 50, spring-loaded ball 51 in the second opening 40.2 can engage positively or is then locked there.

In the region of its first lever arm 37.1 acting as a safety arm, the securing pivoted lever 26 has a stop body 64 in the form of a nose. The latter extends perpendicular to the longitudinal axis 34 of the securing pivot lever 26 and parallel to its pivot axis 27. In the assembled state and in the use position 22 of the pad unit 20, the stop body 64 extends in the vertical direction. It towers over the stopper body 64 the bottom 77 of the securing pivot lever 26 by a length such that it overlaps the front vertical Stirnquerwand 59 of the cross connection cap 43 in the mounted state of the securing pivot lever 26 so that the stopper body 64 can be brought to the stop there (see. especially the FIGS. 3 to 5 ). The stop body 64 itself comprises both a first stop 62.1 and a second stop 62.2 for the securing pivot lever 26. The first stop 62.1 serves to pivot the securing pivot lever 26 about its pivot axis 27 in a first pivoting direction 63.1 (FIG. FIG. 4 ) of one or the open position 28 in the closing or Abhebesicherungsstellung 31, further pivoting of the securing pivot lever in this first pivoting direction 63.1 on the closing or Abhebesicherungsstellung 31 addition, in particular in a further open position, to prevent by in this Position of the first stop 62.1 on the vertical end transverse wall 59 of the cross connection cap 43 abuts.

In contrast, the second stopper 62.2 serves to pivot the securing pivoting lever 26 about its pivot axis 27 in a second pivoting direction 63.2, opposite to the first pivoting direction 63.1, from the closing or lifting-off position 31 into or the open position 28 to prevent further pivoting of the securing pivot lever 26 beyond the open position 28 in this second pivoting direction 63.2. This is due to the fact that the second stop 62.2 then likewise abuts against the vertical end transverse wall 59 of the transverse connection cap 43, but elsewhere.

The common stop body 64 is arranged with its first stop 62.1 and with its second stop 62.2 on the securing pivot lever 26 and the latter is arranged and mounted on the cross connection cap 43 such that the securing pivot lever 26 by a pivot angle 65 from here about a maximum 90 degrees about its pivot axis 27 is pivotable or can be given away. In this way, the stop body 64 limits with its two stops 62.1 and 62.2 via the two latching positions predetermined by the openings 40.1 and 40.2, ie the opening latching position 29 and the safety latching position 32, the pivoting path of the securing pivot lever 26 about its pivot axis 27. In this way it is ensured that the securing pivot lever 26 always only within the by the two stops 62.1 and 62.2 of the stopper body 64 in conjunction with the vertical end transverse wall 59 of the cross connection cap 43 and the mounting or attachment of the fuse pivot lever 26 itself fixed limits about its pivot axis 27 is pivotable and thus can be located exclusively in an open position 28 or in a closing or Abhebesicherungsstellung 31 or possibly an intermediate position between these two positions. An operator can already see from afar whether the securing pivot lever is in one of its two end positions, ie either in its open position 28 or in its closing or Abhebesicherungsstellung 31 or even in an intermediate position. A position of the fuse pivot lever in such an intermediate position can be effectively avoided by the following measures Due to the two end detent positions that can be effected with the resilient detent element 35, ie the opening detent position 29 on the one hand and the detent engagement position 32 on the other hand, and due to a clearly audible noise for the operator during engagement in these two end detent positions ultimately be ensured by an operator person that the backup pivot lever is pivoted in any case in one of the two end-locking positions. In addition to the clear, because about 90 degrees from each other different two end-Einrastpositionen, ie the open position 28 on the one hand and the closing or Abhebesicherungsstellung 31 on the other hand, can by a suitable contrasting color of the fuse pivot lever 26 in addition even better recognition of the respective Secured position can be ensured so that it is therefore widely recognized whether the padding units 20 are provided with their provided at both ends, acting as Abhebesicherungen 25 backup pivoting levers 26 secured against lifting or not.

The fuse pivot lever 26 is designed clockwise or arrow-shaped. Its securing arm 37.1 tapers towards its tip or towards its free end 38. The latter is designed to avoid injury rounded. In the open position 28, in which the securing pivot lever 26 is latched in its opening engagement position 28, the longitudinal axis 38 of the securing pivot lever 26 extends approximately perpendicular to the central longitudinal axis 74 of the covering unit 20.

In addition, the securing pivot lever 26 in its open position 28 in a top view of the Cover unit 20 considered, except for its stop body 64 of the horizontal bottom wall 47 of the cross-stiffening cap 43 covers. In other words, viewed in a view from above onto the covering unit 20, of the securing lever 26 in the open position 28, only the stop body 64 projects beyond the vertical end transverse wall 59 of the cross-linking cap 43. The securing arm 37.1 of the securing pivot lever 26 extends in its open position 28 in a direction approximately perpendicularly away from the center longitudinal axis 74 of the covering unit 20 to the outside.

In contrast, the securing arm 37.1 of the securing pivot lever 26 extends in its opposite the open position 28 by approximately 90 degrees, here counterclockwise, pivoted closing or Abhebesicherungsstellung 31, in which it is locked in the locking engagement position 32, approximately parallel to the longitudinal center axis 74 of the covering unit 20 and projects in a view from above onto the covering unit 20, viewed beyond the vertical end transverse wall 59 of the cross-linking cap 43.

For the purpose of securing the pad unit 20, one can proceed as follows:

Starting from an open position in which the covering unit 20 can be placed on the horizontal support 30, preferably starting from the open position 28, in which the securing pivot lever 26 in the opening-engaged position 29 by positive engagement of acting as a pressure piece 50 ball 51 in the as a slot 45.2 designed opening 40.2 of the bottom wall 47 engaged is (cf. FIG. 4 ), the pad unit 20 is first placed with its hooks 66.1 and 66.2 on the horizontal support, here designed as a round tube scaffolding tube 30. It is understood that the same can also apply to the provided in the other front end of the pad unit 20 second, not shown in the figures, fuse pivot lever and possibly provided there further two hooks on a further horizontal support, in which may also be a scaffolding tube designed as a round tube can be placed.

Starting from this open position 28 or of these open positions, the safety pivot lever 26, or the safety pivot lever, by its manual and here tool-free pivoting about its vertical position in the use position 22 of the pad unit 20 pivot axis or axis of rotation 27 of the open position in pivoted his or her closing or Abhebesicherungsstellung 31, in which the or the fuse pivot lever 26 is latched in his or her fuse latching position 32 or are, in which acting as a pressure piece 50 ball 51 acted upon by the Compression spring 49 in the designed as a slot 45.1 opening 40.1 in the bottom wall 47 of the cross connection cap 43 positively engages or is engaged. In this securing latching position 32, the securing pivot lever 26 can only be moved from its closing or lifting-off position 31 into an open position or into the open position 28 in the direction of the inward position by applying an increased pivoting force FIG. 3 shown arrow 63.2 be swung back. A pivoting of the securing pivot lever 26 of his Closing or Abhebesicherungsstellung 31 in the opposite direction 63.1 is due to the formed with the stopper body 64 stop 62.1 not or in the thereby predetermined narrow limits at most slightly possible.

Unlocking the covering unit 20 secured by means of the securing pivoting lever 26 of the securing pivoted lever against lifting of the horizontal support (s) 30 is described below:

Starting from the closing or Abhebesicherungsstellung / en 31 of the fuse or the pivoting lever 26, in which the covering unit 20 against lifting of the support 30 to form the means of the resilient locking element 35, here by snapping the by the compression spring 49 acting and acting as a pressure piece 50 ball 51 in the designed as a slot 45.1 opening 40.1 in the bottom wall 47 of the cross connection cap 43 caused positive locking, the or are the safety pivot lever 26 and here tool-free application of increased pivoting force, for example in Direction of in FIG. 3 shown arrow 63.2, pivoted from the closing or Abhebesicherungsstellung 31 in an open position. In the course of this unlocking of the resilient latching element 35 takes place here in such a way that the ball 51 is pressed against the spring force of the compression spring 49 back into the cavity 53 of the hollow body 52, to a position such as in FIG. 7 is shown. In this position, the ball 51 is acted upon by the spring force of the compression spring 49 on the surface of the bottom wall 47 of the Cross connection cap 43 bears under pressure. In the course of further pivoting of the securing pivot lever 26 further in the direction of the arrow 63.2, the ball 51 slides approximately on a circular arc around the pivot axis 27 of the securing pivot lever 26. For the purpose of arming the lining unit 20 of the fuse pivot lever 26 continues so long in the pivoting direction 63.2 further pivoted until an open position is reached, in which the covering unit 20 can be lifted from the respective carrier 30. Preferably, the securing pivot lever 26 is pivoted so far from its closing or Abhebesicherungsstellung 31 in the pivoting 63.2 about its pivot axis 27 until a positive locking is achieved by the resilient locking element 35 in the open position 28, in which therefore the ball 51 acted upon by the spring force of the compression spring 49 in the designed as a slot 45.2 second opening 40.2 in the bottom wall 47 of the cross connection cap 43 positively engages or is engaged. Because then, when the pad unit 20 is lifted off the respective carrier 30 or when the pad unit 20 is placed again on the respective carrier 30, interference or collisions due to the respective safety pivoted lever 26 can not occur. ie here except for its respective stop body 64, is pivoted under the bottom wall 47, that is substantially not projecting in one direction over the bottom wall 47 and the front transverse wall 49 of the cross connection cap 43, in which the respective suspension hooks 66.1, 66.2 of this front transverse wall 59th extend to the outside.

LIST OF REFERENCE NUMBERS

20

Flooring unit / frame floor / catwalk

21

Frontal area of 20

22

Use position of 20

23

Longitudinal Randholm

23.1

Longitudinal Randholm

23.2

Longitudinal Randholm

24

flap

24.1

flap

24.2

flap

25

lift-off

26

Backup pivot lever

27

Swivel axis / rotation axis of 26

28

open position

29

Opening engagement position / first engagement position

30

Carrier / crossbar / scaffold tube / round tube

31

Closing or Abhebesicherungsstellung

32

Fuse latching position / second latching position

33

local joints or connection structures

34

Longitudinal axis of 26

35

locking element

36.1

first direction

37.1

first lever arm / safety arm

36.2

second direction

37.2

second lever arm / latch arm

38

free end of 37.1

39

free end of 37.2

40

Opening / hole / hole

40.1

first opening / hole / hole

40.2

second opening / hole / hole

41

part

42

Stirnendprofil / transverse reinforcement profile

43

Cross Cap / cross connection cap

44

circumferential angle

45

Long hole

45.1

Long hole

45.2

Long hole

46

Longitudinal axis of 45

46.1

Longitudinal axis of 45.1

46.2

Longitudinal axis of 45.2

47

Underground of 43

48

Soil profile part

49

Spring / compression spring

50

Pressure piece

51

Bullet

52

hollow body

53

cavity

54

Cross section

55

thrust

56

Opening / hole / blind hole

57

Sidewall of 23

57.1

Sidewall of 23.1

57.2

Sidewall of 23.2

58

Running and working surface

59

Front transverse wall of 43

60

fastener

61

Rivet / rivet

62.1

first stop

62.2

second stop

63.1

pan direction

63.2

pan direction

64

stop body

65

swivel angle

66

Suspension aids / hooks

66.1

Suspension aids / hooks

66.2

Suspension aids / hooks

67

washer

68

Opening / hole / hole

69

Inside diameter of 68

70

Outer diameter of 51

71.1

first rivet head of 61

71.2

second rivet head of 61

72

Bore / blind hole

73

Increase / conformation

74

Longitudinal center axis of 20

75

Tread surface plate

76

Through Hole

77

Bottom of 26

Claims (15)

1. Cover unit, particularly scaffolding cover unit, preferably scaffolding floor (20), with at least one securing means (25) against lifting off, which is fastened in an end face region (21) of the cover unit and which is formed by a securing pivot lever (26), which is pivotable manually, preferably without a tool, about a pivot axis, preferably an axis (27) of rotation, which is vertical in use setting (22) of the cover unit, from an open setting (28), in which the cover unit (20) can be placed on a horizontal beam, particularly a bar, preferably a crossbar, for example a scaffolding tube (30), or lifted off therefrom, to a closed or lifting-off securing setting (31), in which the cover unit (20) when it is placed on the beam (30) is secured against lifting off the beam (30), and conversely, wherein the securing pivot lever (26) at least in its closed or lifting-off securing setting (31) is secured by means of a resilient detent element (35) in a first detent setting (29), with formation of mechanically positive detenting, against unintended pivotation about the pivot axis (26) and wherein the securing pivot lever (26) has a first lever arm (37.1), which extends transversely, preferably perpendicularly, away from the pivot axis (27) in a first direction (36.1), and a second lever arm (37.2), which extends transversely, preferably perpendicularly, away from the pivot axis (27) in a second direction (36.2), particularly in an opposite direction (36.2), characterised in that the detent element (35), which is movable relative to the second lever arm (37.2) parallelly to the direction of the pivot axis (27) and which is formed by a pressure member (50), preferably in the form of a pin or a ball, loaded by means of a spring, particularly a compression spring (49), as well as arranged at a spacing from the pivot axis (27), is fastened or mounted either in or at the second lever arm (37.2), preferably in the region of the free end (39) thereof, or fastened or mounted in or at a part, particularly an end face profile member, which is provided in the end face region of the cover unit, of the cover unit and resiliently bears against the second lever arm, and that the pressure member (50) in the detent setting (29, 32) and loaded by the spring force of the spring mechanically positively detents in an opening arranged at a spacing from the pivot axis (27), particularly in a hole or in a bore (40.1, 40.2), preferably of a part (41), particularly an end face profile member (42), which is provided in the end face region (21) of the cover unit (20), of the cover unit (20) so that then a pivotation of the securing pivot lever (26) about the pivot axis (27) from the closed or lifting-off securing setting (31) to the open setting (28) is possible only with application of an increased pivotation force.
2. Cover unit according to claim 1, characterised in that the securing pivot lever (26) additionally also in its open setting (28) is secured by means of a or the resilient detent element (35) in a second detent setting (32), with formation of mechanically positive detenting, against unintended pivotation about the pivot axis (27) in such a manner that pivotation of the securing pivot lever (26) about the pivot axis (27) from the open setting (28) to the closed or lifting-off securing setting (31) is possible only with application of an increased pivotation force.
3. Cover unit according to one of claims 1 and 2, characterised in that the securing pivot lever (26) carries the detent element (35), which is fastened or mounted at or in this.
4. Cover unit according to at least one of claims 1 to 3, characterised in that the detent element (35) in the respective or each detent setting (29, 32) is mechanically positively detented in an opening, particularly in a hole or a bore (40.1, 40.2), preferably of a part (41), particularly an end face profile member (42), which is provided in the end face region (21) of the cover unit (20), of the cover unit (20).
5. Cover unit according to at least one of claims 1 to 4, characterised in that at least one first opening (40.1) for detenting the resilient detent element (35) in a or the securing detent setting (32) of the securing pivot lever (26) and at least one second opening (40.1) for detenting a or the resilient detent element (35) in an or the opening detent setting (29) of the securing pivot lever (26) are provided in a part (41), preferably an end face profile member (42), which is provided in the end face region (21) of the cover unit (20), of the cover unit (20), wherein the openings (40.1, 40.2) are arranged offset relative to one another at a respective spacing from the pivot axis (27) and at a spacing from one another as well as relative to the pivot axis (27) by a circumferential angle (44), which is preferably approximately 90 degrees.
6. Cover unit according to at least one of claims 1 to 5, characterised in that the spring (49) and the pressure member (50) are accommodated in a cavity (53) of a hollow body (52), which has an overlap part (54) securing the pressure member (50) against dropping out and overlapping the cavity (53), wherein the pressure member (50) loaded by the spring force of the spring (49) bears against the overlap part (54) under formation of pressure forces (55).
7. Cover unit according to claim 6, characterised in that the hollow body (52) containing the spring (49) and the pressure member (50) is fastened, preferably pressed into place, in an opening or a bore (56), particularly of the securing pivot lever (26).
8. Cover unit according to at least one of claims 1 to 7, characterised in that the securing pivot lever (26) has at least one first abutment (62.1), which preferably extends transversely to the longitudinal axis (34) of the pivot lever and parallelly to the pivot axis (27), particularly extends in a vertical direction in use setting (22) of the cover unit (20), and which on pivotation of the securing pivot lever (26) about the pivot axis (27) thereof in a first pivot direction (63.1) from an or the open setting (28) to the closed or lifting-off securing setting (31) prevents further pivotation of the securing pivot lever (26) in this first pivot direction (63.1) beyond the closed or lifting-off securing setting (31) into a further open setting, particularly by abutments at a or the part (41), preferably an end face profile member (42), which is provided in the end face region (21) of the cover unit (20), of the cover unit (20), preferably by abutments at an end transverse wall (59), which is at the front and vertical in use setting (22) of the cover unit (20), of a or the part (41), preferably an end face profile member (42), which is provided in the end face region (21) of the cover unit (20), of the cover unit (20).
9. Cover unit according to at least one of claims 1 to 8, characterised in that the securing pivot lever (26) optionally additionally has an optional second abutment (62.2), which preferably extends transversely to the longitudinal axis (34) of the pivot lever and parallelly to the pivot axis (27), particularly extends in a vertical direction in the use setting (22) of the cover unit (20), and which on pivotation of the securing pivot lever (26) about the pivot axis (27) thereof in an optional second pivot direction (63.2) from the closed or lifting-off securing setting (31) to an or the open setting (28) prevents further pivotation of the securing pivot lever (26) in this optional second pivot direction (63.2) particularly by abutments at a or the part (41), particularly an end face profile member (42), which is provided in the end face region (21) of the cover unit (20), of the cover unit (20), preferably by abutments at an end transverse wall (59), which is at the front and vertical in use setting (22) of the cover unit (20), of a or the part (41), preferably an end face profile member (42), which is provided in the end face region (21) of the cover unit (20), of the cover unit (20).
10. Cover unit according to claim 8 and 9, characterised in that the first abutment (62.1) and the second abutment (62.2) are part of a common abutment body (64) of the securing pivot lever (26).
11. Cover unit according to claim 8 and 9 or 10, characterised in that the first abutment (62.1) and the second abutment (62.2), preferably the common abutment body (64), is or are so arranged at the securing pivot lever (26), and the securing pivot lever (26) is so arranged and mounted at a part (41), preferably an end face profile member (42), of the cover unit (20), that the securing pivot lever (26) is pivotable through a pivot angle (65) of at most 180 degrees, preferably of at most 100 degrees, preferably of at most 90 degrees, about its pivot axis (27).
12. Scaffolding, platform, stair, stand or like support construction or three-dimensional framework, with at least two horizontal beams (30), particularly bars, preferably crossbars, for example scaffolding tubes (30), on or at which a cover unit (20) according to at least one of the preceding claims is placed or suspended, which cover unit has at each of two of its end face regions (21), which extend away from another in opposite directions, preferably at parts (41) respectively provided there, particularly end face profile members (42), of the cover unit (20) at least one respective securing pivot lever (26) of that kind.
13. Method of securing a cover unit (20), particularly a scaffolding cover unit, preferably a scaffolding floor (20), against lifting off a horizontal beam (30), particularly bar, preferably crossbar, for example scaffolding tube (30), characterised in that a cover unit (20) formed in accordance with at least one of claims 1 to 11 is pivoted with the help of a securing means (25) against lifting off, which is formed by a securing pivot lever (26), by manual pivotation, preferably without a tool, of the securing pivot lever (26) about a pivot axis, particularly an axis (27) of rotation, which is vertical in use setting (22) of the cover unit (20), from an open setting (28) in which the cover unit (20) can be placed on the horizontal beam or lifted off therefrom, after the cover unit (20) has been placed or suspended on or at the beam (20), into a closed or lifting-off securing setting (31) and also into a securing detent setting (32), in which in the course of the manual pivotation of the securing pivot lever (26) about its pivot axis (27) a resilient detent element (35) produces a mechanically positive detenting of the securing pivot lever (26), preferably at a part (41) which carries this, particularly an end face profile member (42), of the cover unit (20) so that then the securing pivot lever (26) can be pivoted from its closed or lifting-off securing setting (31) to the open setting (28) only with application of an increased pivotation force.
14. Method of releasing a cover unit (20), particularly a scaffolding cover unit, preferably a scaffolding floor (20), which is formed according to at least one of claims 1 to 11 and which with the help of securing means (25) against lifting off, which is formed by a securing pivot lever (26), is secured against lifting off a horizontal beam (30), particularly bar, preferably crossbar, for example scaffolding tube (30), characterised in that the securing pivot lever (26) starting from a closed or lifting-off securing setting (31), in which the cover unit (20) is secured in a securing detent setting (32) against lifting off the beam (30) under formation of a mechanically positively detenting, which is produced by means of a resilient detent element (35), of the securing pivot lever (26), preferably at a part (41) carrying this, particularly end face profile member (42), of the cover unit (20), is pivoted manually, preferably without a tool, under application of an increased pivotation force and with simultaneous unlocking of the resilient detent element (35) about a pivot axis, particularly an axis of rotation, which is vertical in use setting of the cover unit, from the closed or lifting-off securing setting (31) to an open setting (28) in which the cover unit (20) can be lifted off the beam (30).
15. Method according to claim 14, characterised in that in the course of the manual pivotation of the securing pivot lever (26) about its pivot axis (27) from the closed or lifting-off securing setting (31) to the open setting (28) a resilient detent element (25) or the resilient detent element (35) in an opening detent setting (29) then produces a mechanically positive detenting of the securing pivot lever (26), preferably at a part (41) carrying this, particularly end face profile member (42), of the cover unit (20) so that then the securing pivot lever (26) can be pivoted out of this open setting (28) only with exertion of an increased pivotation force.

Images