EP0736648B1 - Scaffold - Google Patents

Abstract

The scaffolding assembly (30) consists of a rigid work platform that is supported using horizontal, diagonal, and vertical steel posts (31) and through the use of brackets (45). The posts are all horizontally underpropped, and are connected together using a block. The use of several of these blocks allows multiple runs of scaffold boards (40) to be linked up. The scaffold boards are also horizontally supported and underpinned. The boards consist of long wooden planks with vertical securing holes (57) bored into their ends. The holes are use in conjunction with pins to fix the boards to the support blocks.

Description

a. An den Stielen abgestützte Horizontal-Tragriegel sind an Knotenelementen mittels je eines Keils angeschlossen;

b. die Gerüstböden sind an den Horizontal-Tragriegeln abgestützt;

c. für die Abstützung der Gerüstböden an den Horizontal-Tragriegeln sind Bodenstützmittel und Riegelauflagemittel vorgesehen;

d. die Gerüstböden sind gegen Abheben gesichert und wenigstens teilweise verschiebegesichert;

e. die Horizontal-Tragriegel haben an ihren Enden bzw. an ihrem einen Ende Keil-Köpfe mit etwa auf halber Höhe liegenden Horizontalschlitzen zum Aufstecken auf horizontal angeordnete Lochscheiben der Stiele und zum Durchstecken der Keile durch die über und unter der zugeordneten Lochscheibe liegenden Kopfteile und durch die Löcher in den Lochscheiben, die im eingesteckten Zustand der Keile ein gegenseitiges Lösen der Elemente ohne manuellen Eingriff verhindern;

f. die Gerüstböden haben zumindest teilweise im Bereich ihrer Stirnenden zylindrische, sich vertikal er-streckende Sicherungs-Löcher;

g. an den Horizontal-Tragriegeln sind Vertikalstifte mit zu den Sicherungs-Löchern passenden Abmessungen angeordnet;

h. die Vertikälstifte sind entsprechend dem Lochabstand und dem Endflächenabstand von den in den Gerüstböden vorgesehenen Sicherungs-Löchern angeordnet und ragen über eine obere Riegel-Auflagefläche des Horizontal-Tragriegels auf;

i. die Vertikalstifte ragen mit einer freien Aufnahmelänge über der Riegel-Auflagefläche auf, die etwas kleiner oder höchstens gleich der Dicke des Gerüstbodens und/oder seines Auflagebereichs ist;

j. die Lochränder der Gerüstböden sind als Bodenstützflächen zur Auflage auf der Riegel-Auflagefläche gestaltet.

The present invention relates to a scaffold with a support structure element arrangement, wherein a torsionally rigid space structure is formed with the aid of supports, horizontal bars and diagonal bars, the scaffold module grid dimensions in all three spatial directions and longitudinal connection grid dimensions for the scaffold floors and the width The grid dimension is selected according to the width of the person's work space and the height grid dimension corresponds to a height module dimension for the variable subdivision of a person's work height and the longitudinal grid dimension corresponds to the horizontal extent of a field size and the longitudinal connection grid dimensions are smaller than the longitudinal grid dimensions according to the support element design, with the following features :

a. Horizontal support bars supported on the stems are connected to node elements by means of a wedge;

b. the scaffold floors are supported on the horizontal support bars;

c. for supporting the scaffolding floors on the horizontal support bars, floor support means and transom support means are provided;

d. the scaffold floors are secured against lifting and at least partially secured against displacement;

e. the horizontal support bars have at their ends or at one end wedge heads with horizontal slots lying about halfway up for plugging onto horizontally arranged perforated disks of the stems and for inserting the wedges through the head parts lying above and below the assigned perforated disk and through the Holes in the perforated disks which, when the wedges are inserted, prevent the elements from loosening without manual intervention;

f. the scaffolding floors have cylindrical, vertically extending securing holes, at least in part in the area of their ends;

G. vertical pins with dimensions matching the securing holes are arranged on the horizontal support bolts;

H. the vertical pins are arranged in accordance with the hole spacing and the end face spacing from the securing holes provided in the scaffold floors and protrude above an upper bolt support surface of the horizontal support bolt;

i. the vertical pins protrude above the transom support surface with a free receiving length which is somewhat smaller or at most equal to the thickness of the scaffold floor and / or its support area;

j. the perforated edges of the scaffolding floors are designed as floor support surfaces for resting on the transom support surface.

Scaffolds have stems, horizontal bars, and diagonal bars in order a stable and somewhat rigid Build space structure. The horizontal bars include Horizontal support bars, which are usually much shorter than the other horizontal bars. On the horizontal support bars become the scaffolding floors essential for scaffolding with the running and working areas for the actual Supported use of the scaffold. The interaction between the various elements of the supporting structure and at least in the tread plane torsionally rigid scaffolding floors can be used to stabilize the whole framework and essentials contribute. However, this is due to the circumstances of the Manufacturing, building, growing and using game to take into account.

The scaffolding is either with vertical scaffolding frames, which are usually vertical and normal to the building wall be set up, or with individual stems and Node elements for the connection between stems and Horizontal and diagonal bars built. The invention deals with improved solutions Scaffolds with individual stems and with knot elements to connect the rods and as 'Module scaffolding' can be called. For the node elements various configurations are known. Below there are different arrangements with cup-like rings on the Stems in which the horizontal rods and hooks from above other horizontal elements and the connecting elements for Diagonal bars hooked in and with additional means be secured. One knows fuses with oblique hammered wedges.

If these wedges are not attached, they can The hooks are lifted out of the cups. With them are large-scale elements of the scaffolding connected, so in stronger wind or storm for example, that associated with the support bar Scaffolding floor element can be lifted off together with this and cause serious damage to people, buildings, cars and other objects.

The scaffolding floors are attached to the in different ways Horizontal support bars connected. One uses cylindrical support bars, are usually claw-like Hooks placed from above and mostly spring-loaded and / or locked holding fingers from below to prevent lifting recorded.

For various individual and special applications are from the Utility models DE-U 85 13 983 and DE-U-85 13 985 scaffolding from vertical frames and covering panels or scaffolding floors known in which the upper cross member of the scaffold frame between the two vertical, made of round tube Stems of the frame are welded in and for fixing the covering boards carries vertically upright pins, which the respective module dimensions and the various individual dimensions are arranged accordingly.

The also the spacing of the adjacent pins from each other and taking into account the widths of the trusses Construction offers mainly by welding the upper crossbar with the vertical support tubes a stiff Frame that only according to its connection dimensions and Connection conditions can be used, however not is suitable for otherwise differently designed Module scaffolds to be used. With such modular scaffolding are just loose stalks with attack means for Connection heads of trusses used, which at Scaffolding is not the case.

Another application of trusses with pins is out DE-A 38 24 922 known. It's about one at a time the wooden rungs of a wooden ladder scaffold comprehensive, approximately hat-shaped holding device in profile hang up. This holding device has outwardly projecting Leg with support tubes for the fixing pins of the Scaffolding floors, but no front-connected ones Tools to help with the other connection facilities of a truss node. Since it is an individually constructed wooden ladder scaffold are also the dimensions with respect to one for the whole Framework framework system not applicable. The No suggestions can be found in the aforementioned writings. Trusses with fixing pins for scaffolding floors with special stable, taking into account the tipping forces, front end of the framework knot heads for To equip perforated discs on stems.

Other fastenings, such as those used for modular scaffolding have been used on the stems in certain Distances attached and usually have perforated disks an upwardly open U-shaped horizontal support bar design.

The horizontal bars have wedge heads at their ends, which have a horizontal slot in the middle, which allows those below and above Push the headboard over the perforated disc from the side and then a wedge through the openings in the two Headboards and through the opening in the perforated disc stuck.

Depending on the edges of the U-rail-like support bars Scaffolding floor at least two on its respective end face attached claws. With the 1st up to 2 cm high hook part over the supporting edge. With game from Lift safeguards on top prevent lifting.

Thanks to the multi-toothed cellar construction, not wedged but inserted wedge and Lifting protection applied does not separate the scaffolding floor and the support bar of the support structure more possible. However, not all elements are in this arrangement firmly connected to each other by positive locking and friction locking.

Scaffolding floors that can be used for handling, in which top and Bottom can serve as a running and work surface double prism-shaped support elements on their end faces, which are also on the upper edge surfaces of the Vertical leg of the U-shaped, open at the top Horizontal bars are placed. With these there is also one Side shift possible if not additional Aids are applied.

EP-A-0 308 882 discloses a scaffold floor part for bridges smaller, not parallel and more limited at right angles Running and working areas within a scaffold. there there are two horizontal support bars inside the scaffold Commitment. A first horizontal support bar is considered an after U-profile open at the top, which is attached to the wedge heads Perforated disks of the stems of the scaffold are connected and in which the scaffolding floor elements are hung using hooks become.

In a further embodiment, horizontal support bars used, which are welded to the scaffolding posts are and have vertical pins on which on the scaffold floors existing hangers are hooked in.

The present invention has the technical problem or the task is based on scaffolding with support structure element arrangements of the type mentioned the holding, fixing and Supporting devices for scaffolding floors on the structure and associated Design elements so that manufacturing, Assembly, disassembly and use can be improved by the formation of the scaffolding and the support of the occurring Forces are improved and optimized.

The invention further aims by Association of advantageous features from different Interchangeability and that arbitrary merging of elements of different To enable scaffolding systems, but above all on the other hand with a simple structure and cheap and inexpensive Manufacturing options a particularly good one, in several Directionally stable connection between the scaffold frame floors and the stems of the overall structure of the scaffold enable.

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

• die Sicherungs-Löcher weisen durchgehende Vertikalhülseh auf, in die die Vertikalstifte relativ passgenau einführbar sind;
• der Horizontal-Tragriegel weist Eingriffsfreiräume für die Aufnahme von zumindest einem, die Enden der Gerüstböden abdeckenden Abhubsicherungs-Mittel auf.

The scaffold according to the invention is accordingly characterized by the following features:

• the securing holes have continuous vertical sleeves into which the vertical pins can be inserted with a relatively precise fit;
• the horizontal support bar has free spaces for receiving at least one anti-lifting device covering the ends of the scaffolding floors.

Because on the one hand the particularly safe and according wedging particularly stable in all directions Knot construction with perforated disc and horizontally slotted wedge head used and on the other hand on the Lock the relatively long and the scaffolding floors against lateral displacement-securing pin-hole connections with suitable passport dimensions, you get one already with and after the loose. Automatically merge in multi-directional particularly stable connection that too particularly torsionally stable when torsional forces occur is and also against bending forces in incomplete assemblies of the scaffold, especially in intermediate stages of. Construction and Degradation ensures particularly favorable holding conditions.

Because of the many different uses of the She can invent both with respect to an entire framework as well as a scaffold part or a support structure element arrangement To be defined. Also acts in this respect it is related to the invention representation Representative parts of a self-contained Solution principles in which the particularly stable handle anchored horizontal support bars with the special sliding scaffold floor supports known per se Kind now interrelated at least several make internal, technically related connections.

Regarding the stability of connections of the individual parts of the scaffold with each other with appropriate installation and / or Stressful situations regarding essential aspects the transfer of force to a bent scaffold floor to look at the stem. While hanging with a claw on the supporting edge of the U-bolt one Joint examination in the critical limit positions required is, in the inventive design of one supporting network and in the calculation static and above all dynamic forces included become. That is for the question of the used Amounts of material and thus the weight of the Scaffold assembly people to lift individual parts and ultimately the safety of the entire scaffolding system in critical Situations of importance. When connecting a Scaffolding floor with holes in the end areas, which on Pins are plugged into the horizontal support bar vertically protruding, is the bent Scaffolding floor, as shown primarily in FIGS. 3 and 18, to recognize that the relatively well-arranged Sleeve support element of the scaffolding floor in the area of the upper End of the pin on one side and in the area of the bottom end on the opposite side, so that a relatively large support distance between the two counteracting supporting forces of the applied The moment to be considered. While with the previous one Supporting such scaffolding floors with holes and pins one Cup connection to the handle was common, the invention provides now a wedge head in front, the end faces of which Support the outer wall of the stem. Here too is the greatest possible distance between the two force components of the occurring moments as possible as those on these Distance-indicating arrows in FIGS. 3 and 18 illustrate. It turns out that an inner technological connection between the two, in itself known with different scaffolding systems Support arrangements clearly stands out and that less material and therefore less Transport weight larger permissible loads, especially dynamic loads on the scaffold can be allowed.

When setting up scaffolding on buildings, there is often a Distance from the building wall required. The distance must it also allow between the building wall and the scaffolding to work on the wall, for example when plastering, when Attaching veneers or with special complicated painting, painting and decorating as well Plasterwork. This distance is so large that when walking, Running, tools and materials transport the danger of falling people and objects can be excluded. Therefore, for such, however other cases with a bracket or boom arrangement lying outside the actual scaffolding room Console scaffold floors selected. These are the same as before described arrangement between the inside Support posts of the scaffold and the wall attached in such a way that between the wall and the edge of the cantilever scaffold floor there is such a small distance that people and Objects cannot fall down. These consoles have a fastening on the scaffold arm and a little lower horizontal, usually loose, lower console support, with an inclined strut to the outer end of the Horizontal bar or horizontal support element of Console is connected so that all supporting forces on the Handle-side of the console can be introduced into the handle. Here too, the attachment to the respective one is known Node element. So far, U-shaped horizontal support elements with wedge heads attached to perforated disks provided or there are horizontal support elements with vertical pins and cup attachment common.

A preferred alternative embodiment of the Scaffold according to the invention is characterized in that the support structure element arrangement designed with consoles is in each case instead of the horizontal support bar Have horizontal support element, with one at one end attached wedge head with one free end, with one on Fasten the wedge-head end and rest on the stem, approximately perpendicular to the horizontal support element Vertical strut leading oblique strut as well as with vertical pins, to the securing holes in the scaffolding or Console scaffolding floors are arranged in suitable dimensions.

The console attachment with some known per se Wedge heads with above and below the perforated disc adjacent support surface and wedge bracing also offers Loose wedge provides great security against undesired falling of parts and especially in Connection with the connection secured via the pins between console scaffolding floors and horizontal support element one in overall strength and overall stiffness significantly improved overall scaffolding design. Especially due to the special wedge head design for the Connection to the handle can be the loose handle system of the lower Struts are successfully used in a stable manner.

According to the invention the support of a pair of stems assigned, on both sides of the two stems common vertical plane lying ends of scaffold floors considerably spaced (distance 75) that the Rest on the by means of wedge heads on the Stem perforated disks set particularly tilt-resistant Cantilever parts for a tannery beam-like formation of the leads to the respective floor section.

Further advantageous configurations, features, advantages, and Details of the invention, in particular which according to the safety regulations of all countries sophisticated building technology (DIN 4420) required Lift safeguards and support element designs, such as e.g. for support bolts and / or consoles as well as the Designs for the simultaneous use of Standard scaffolding floors from different systems (Combi bars) are in their adaptations to the Designs according to the invention from the further claims and from the following, based on the drawings dealt with in the description section.

Fig. 1

Ein teilweise schematisiertes Schrägbild eines Gerüstfeldes mit einer auf einer ersten Standhöhe vorgesehenen Gerüstboden-Anordnung, mit Horizontal-Tragriegel, wobei die Gerüstrastermaße einem Gerüstsystem entsprechen, welches üblicherweise mit Lochscheiben an den Stielen und mittels Keilen gesicherten Keilköpfen entspricht, bei dem Gerüstböden mit in den Ecken vorgesehenen Fixierungsbohrungen verwendet sind, die mit Hilfe von vertikalen Stiften an den Rändern des Horizontal-Tragriegels gesichert werden, wie sie sonst nur bei Gerüstsystemen mit tassenartiger Verbindung zwischen Horizontal-Tragriegel und Stiel üblich sind, wobei sich ein aus der Maßdifferenz vorhandender Gerüstelemente ergebender Zwischenraum zwischen den Enden der Gerüstböden ergibt;

Fig. 2

ein weiter vergrößertes Teil-Schrägbild des Horizontal-Tragriegels gemäß Fig. 1, wobei die Enden zweier Gerüstböden und der Anschluß-Übergang zu den Lochscheiben der Vertikal-Stiele dargestellt sind, um die Struktur von Riegel, Gerüstböden und Einhängung zu zeigen

Fig. 3

ein teilweise übertrieben vergrößert dargestelltes Teil-Schrägbild der Tragstruktur-Element-Anordnung zur Veranschaulichung der auf die Lochscheibe und den Stiel wirkenden Stützkräfte bei einseitiger Auflage von lastbeanspruchten Gerüstböden auf dem Horizontal-Tragriegel bzw. bei einer ungleichmäßigen Lastverteilung der Gerüstböden beidseitig des Horizontal-Tragriegels;

Fig. 4

einen teilweise übertrieben vergrößert dargestellten Teil-Schnitt der Lochscheibe und des Keilkopfes gemäß Fig. 3 im Bereich der Anlagefläche am Stiel mit den vom Keilkopf auf die Lochscheibe und auf den (nicht gezeigten) Stiel wirkenden Stützkräften;

Fig. 5

die Anordnung gemäß Fig. 2 in einer Gestaltung, bei der neben den Enden zweier weiterer Gerüstböden ein Überbrückungs- und Abhubsicherungs-Element dargestellt ist, wobei dieses unterseitige Haken aufweist, die in Öffnungen des Horizontal-Tragriegels eingreifen und wobei durch Horizontalverschiebung und Rückschubsicherung unbeabsichtigtes Lösen verhindert werden kann. Die Rückschubsicherung erfolgt in Üblicher Weise mit einer Klappe;

Fig. 6

eine vergrößerte Schrägbild-Schnitt-Darstellung eines Uberbrückungs- und Abhubsicherungs-Elementes mit Sicherungshaken gemäß Fig. 5;

Fig. 7

ein Schrägbild eines Uberbrückungs- und Abhubsicherungs-Elementes mit Verstärkungs-Doppelsteg und korrespondierendem Biege-Verstärkungs- und Sicherungsblech des Horizontal-Tragriegels für Gerüstböden an Gerüsten gemäß den vorstehenden Figuren;

Fig. 8

eine Schragblld-Darstellung einer Gerüstelement-Gestaltung mit zwei Stielteilen, vier Gerüstböden und einem Gerüstboden-Tragriegel mit Stiftsicherung, wobei die Gerüstelemente in ihren Längsabmessungen an die Gerüstelemente anderer Hersteller derart angepaßt sind, daß Horizontal-Tragriegel mit geringerer, in einer den üblichen Dimensionen entsprechend ausgebildeten Gestaltung verwendet werden können, bei denen nur ein schmaler Schlitz für den Durchgriff des Abhubsicherungs-Mittels zwischen den einander zugewandten Enden der in Längserstreckung zueinander liegenden Gerüstböden vorgesehen sind;

Fig. 9

ein weiter vergrößertes Teil-Schnittbild des Horizontal-Tragrlegels gemäß Fig. 8, wobei die Enden zweier Gerüstböden und der Anschluß-Übergang zu den Lochscheiben der Vertikal-Stiele dargestellt sind, um die Struktur von Riegel, Gerüstböden und Einhängung zu zeigen;

Fig. 10

die Anordnung gemäß Fig. 9 in einer Gestaltung, bei der neben den Enden zweier weiterer Gerüstböden ein Überbrückungs- und Abhubsicherungs-Element dargestellt ist, wobei dieses unterseitige Haken aufweist, die in Öffnungen des Horizontal-Tragriegels eingreifen und wobei durch Horizontalverschiebung und Rückschubsicherung unbeabsichtigtes Lösen verhindert werden kann. Die Rückschubsicherung erfolgt in üblicher Weise mit einer Klappe;

Fig. 11

eine vergrößerte Schrägbild-Schnitt-Darstellung eines Überbrückungs- und Abhubsicherungs-Elementes mit Sicherungshaken gemäß Fig. 10;

Fig. 12

eine Darstellung eines Horizontal-Tragriegels, bei dem der Zwischenraum zwischen den Gerüstboden-Enden durch eine auf Gerüstbodenhöhe liegende, in das Profil des Horizontalriegels integrierte Fläche dargestellt ist, wobei nur schmale Schlitze zwischen der hutförmigen Erhebung und den Gerüstbodenenden verbleiben, so daß auch nur Teilflächen überdeckende Abhubsicherungsmittel eingesetzt werden können;

Fig. 13

das Profil mit den wesentlichen Elementen für einen Horizontal-Trag-Übergangs-Riegel, bei dem auf der einen Seite ein Gerüstboden mit Krallen und auf der anderen Seite ein Gerüstboden mit Durchgangs-Fixieröffnungen für Vertikalstifte aufgelegt werden können, wobei auch für diese Annordnung Überbrückungs- und Abhubsicherungs-Elemente der vorgenannten Art verwendet werden können.

Fig. 14

einen Querschnitt durch den Gerüstriegel nach Fig. 8 mit im Anschlußbereich zylindrischen Vertikalstiften;

Fig. 15

eine der Fig. 12 entsprechende Darstellung, bei der die Vertikalstifte im Anschlußbereich eingezogen gestaltet sind, so daß sich ein geringerer Stiftabstand bzw. eine größere Tragriegel-Rohr-Breite technologisch günstig realisieren läßt;

Fig. 16

ein der Fig. 1 entsprechendes Schrägbild, bei dem eine Konsole auf derselben Ebene wie die zwischen den Stielen liegenden Konsolen-Gerüstböden vorgesehen ist;

Fig. 17

ein weiter vergrößertes Teil-Schrägbild der Konsole gemäß Fig. 16, wobei das Ende eines Konsolen-Gerüstbodens und der Anschluß-Übergang zu der Lochscheibe des Vertikal-Stieles dargestellt sind, um die Struktur von Konsole, Konsolen-Gerüstböden und Einhängung zu zeigen;

Fig. 18

ein teilweise übertrieben vergrößert dargestelltes Teil-Schrägbild der Stütz-Element-Anordnung zur Veranschaulichung der auf die Lochscheibe und den Stiel wirkenden Stützkräfte bei einseitiger Auflage von lastbeanspruchten Konsolen-Gerüstböden auf dem Horizontal-Stützelement bzw. bei einer ungleichmäßigen Lastverteilung der Konsolen-Gerüstböden beidseitig des Stütz-Elementes;

Fig. 19

eine Draufsicht auf ein teilweise schematisiertes Gerüstfeld gemäß Fig. 16 mit Gerüstböden beiderseits des Horizontal-Tragriegels und Konsolen-Gerüstböden beiderseits des Horizontal-Stützelementes, wobei zur Überbrückung des Spaltes zwischen den Gerüstböden und den Konsolen-Gerüstböden jeweils ein Überbrückungs-Element vorgesehen ist. Zur Verhinderung des Abhebens sowohl der Gerüstböden und der Konsolen-Gerüstböden als auch der Überbrückungselemente sind gerüst- und konsolenseitig Uberbrückungs- und Abhubsicherungs-Elemente vorgesehen. Diese weisen unterseitige Haken auf, die in Öffnungen des Horizontal-Tragriegels bzw. des Horizontal-Stützelementes eingreifen, wobei durch Horizontalverschiebung und Rückschubsicherung unbeabsichtigtes Lösen verhindert werden kann. Die Rückschubsicherung erfolgt in üblicher Weise mit einer Klappe;

Fig. 20

ein Teil-Schnittbild entlang der Schnittkante A-A in Fig. 19, wobei nicht alle Elemente der Konsole dargestellt sind.

Fig. 21

einen Teil-Schnitt entlang der Schnittkante B-B in Fig. 19.

Exemplary embodiments and variants of the invention are explained below. Show it:

Fig. 1

A partially schematic oblique view of a scaffold bay with a scaffold floor arrangement provided at a first stand height, with horizontal support bars, the scaffold grid dimensions corresponding to a scaffold system, which usually corresponds to perforated disks on the stems and wedge heads secured by wedges, with the scaffold floors in the corners provided fixing holes are used, which are secured with the help of vertical pins on the edges of the horizontal support bar, as they are otherwise only common with scaffolding systems with a cup-like connection between the horizontal support bar and stem, with a space resulting from the difference in dimensions of existing scaffolding elements the ends of the scaffold floors;

Fig. 2

a further enlarged partial oblique view of the horizontal support bar according to FIG. 1, the ends of two scaffolding floors and the connection transition to the perforated disks of the vertical posts are shown to show the structure of the bolt, scaffolding floors and suspension

Fig. 3

a partially exaggerated partial oblique view of the support structure element arrangement to illustrate the supporting forces acting on the perforated disc and the handle with one-sided support of load-bearing scaffolding floors on the horizontal support bar or with an uneven load distribution of the scaffolding floors on both sides of the horizontal support bar;

Fig. 4

a partially exaggerated partial section of the perforated disc and the wedge head according to FIG 3 in the area of the contact surface on the stem with the supporting forces acting from the wedge head on the perforated disc and on the stem (not shown).

Fig. 5

2 in a design in which, in addition to the ends of two further scaffolding decks, a bridging and lift-off protection element is shown, this having hooks on the underside which engage in openings in the horizontal support bar and wherein unintentional loosening by horizontal displacement and push-back protection can be prevented. The push-back protection is carried out in the usual way with a flap;

Fig. 6

an enlarged oblique cross-sectional view of a bridging and lift-off element with safety hook according to FIG. 5;

Fig. 7

an oblique view of a bridging and lift-off element with reinforcement double web and corresponding bending reinforcement and locking plate of the horizontal support bar for scaffolding floors on scaffolding according to the preceding figures;

Fig. 8

a Schragblld representation of a scaffold element design with two stem parts, four scaffold floors and a scaffold floor support bar with pin lock, the scaffold elements in their longitudinal dimensions are adapted to the scaffold elements of other manufacturers in such a way that horizontal support bars with less, in a the usual dimensions trained design can be used, in which only a narrow slot for the passage of the anti-lift means are provided between the mutually facing ends of the scaffolding floors lying in the longitudinal direction;

Fig. 9

a further enlarged partial sectional view of the horizontal supporting bar according to FIG. 8, the ends of two scaffolding decks and the connection transition to the perforated disks of the vertical posts being shown in order to show the structure of the transom, scaffolding decks and suspension;

Fig. 10

9 in a design in which, in addition to the ends of two further scaffolding decks, a bridging and lift-off securing element is shown, this having hooks on the underside which engage in openings in the horizontal support bar and inadvertent release by horizontal displacement and push-back protection can be prevented. The return protection is done in the usual way with a flap;

Fig. 11

an enlarged oblique sectional view of a bridging and lift-off element with safety hook according to FIG. 10;

Fig. 12

a representation of a horizontal support bar, in which the space between the ends of the scaffolding floor is represented by a surface which is at the level of the scaffolding floor and is integrated into the profile of the horizontal bar, only narrow slots remaining between the hat-shaped elevation and the ends of the scaffolding floor, so that even only partial areas covering anti-lifting devices can be used;

Fig. 13

the profile with the essential elements for a horizontal load-bearing transom, in which on one side a scaffold floor with claws and on the other side a scaffold floor with through-fixing openings for vertical pins can be placed, whereby also for this arrangement bridging and anti-lift elements of the aforementioned type can be used.

Fig. 14

a cross section through the scaffold bolt according to FIG 8 with vertical pins cylindrical in the connection area.

Fig. 15

a representation corresponding to FIG. 12, in which the vertical pins are retracted in the connection area, so that a smaller pin spacing or a larger support bar tube width can be realized in a technologically favorable manner;

Fig. 16

an oblique image corresponding to Figure 1, in which a console is provided on the same level as the console scaffolding floors lying between the stems;

Fig. 17

a further enlarged partial oblique view of the console according to Figure 16, showing the end of a console scaffolding floor and the connection transition to the perforated disc of the vertical stem to show the structure of the console, console scaffolding floors and suspension;

Fig. 18

a partially exaggerated partial oblique view of the support element arrangement to illustrate the supporting forces acting on the perforated disc and the handle with one-sided support of load-stressed console scaffolding floors on the horizontal support element or with an uneven load distribution of the console scaffolding floors on both sides of the support element;

Fig. 19

16 with scaffolding floors on both sides of the horizontal support bar and console scaffolding floors on both sides of the horizontal support element, with a bridging element being provided to bridge the gap between the scaffolding floors and the console scaffolding floors. To prevent lifting of the scaffold floors and the console scaffold floors as well as the bridging elements, bridging and lift-off protection elements are provided on the scaffold and console side. These have hooks on the underside which engage in openings in the horizontal support bar or the horizontal support element, wherein unintentional loosening can be prevented by horizontal displacement and push-back protection. The return protection is done in the usual way with a flap;

Fig. 20

a partial sectional view along the cutting edge AA in Fig. 19, wherein not all elements of the console are shown.

Fig. 21

FIG. 19 shows a partial section along the cutting edge BB in FIG. 19.

The frame 30 has stems 31.1 and 31.2, which are in Support in the usual way on starting pieces 32.1 and 32.2. These in turn are based on nuts 33.1 and 33.2 adjustable support feet 34.1 and 34.2. In the usual Ways are also referred to as horizontal bars Horizontal longitudinal bar 35 and horizontal cross bar 36 and also diagonal bars 37 referred to as diagonal bars intended. These scaffolding elements are in the usual way often provided on the scaffold. To support the Scaffold floors 40.1 ... 4 of the first scaffold level 42 is a unusually wide horizontal support bar 45 provided, which with the help of provided by end Wedge heads 46.1 and 46.2 engage wedges 47.1 and 47.2 the perforated discs 48.1 and 48.2 of the stems 31.1 and 31.2 in which is wedged in the usual way with such scaffolding. This extremely stable and also safe against tipping forces Connection, which the occurring forces with the Head end faces directly into the stem tube is 3 and 4 illustrated in more detail.

The horizontal support bar 45 has a flat base support plate 50 and end pin support walls 51.1 and 51.2. Form cross struts 52 under the floor support plate 50 a structured, rigid element with an im essential box-shaped horizontal bar support tube 53, at the ends 54.1 and 54.2 the wedge heads 46.1 and 46.2 are preferably attached by welding. All Components usually exist for those as bulk goods used steel scaffolding. For those special costly, but for quick transportation as well the quick assembly and disassembly of inexpensive light metal frames they can also consist of light metal.

The scaffolding floors 40.1 and 40.2 shown in Fig. 2 are just like the scaffolding floors 40.3 and 40.4 in Distance from its shorter end face 55 and from the long side vertical surfaces 56 in approximately the same Spaced, with securing holes or through-fixing openings 57.1 and 57.2 designed floor support means. These are usually designed with vertical sleeves 58. Wood, but also metal, can be used as scaffolding floor material or composite materials formed, common materials for Scaffold floors can be used. The dimensions of both the Scaffolding floor elements as well as for the arrangement of the Through-fixing openings 57.1 and 57.2 and their Distances from each other and from the forehead surfaces of the Scaffolding floors correspond to the scaffolding system to which they belong Usually include and the dimensions of the horizontal support bar are in accordance with those otherwise used To design scaffolding components.

The respective lies with a support surface part 59 End 60 of the scaffold floor 40 on the support surface 61 of the Gerust support bar 45 or its upper Floor support plate 50, so that the simple support Vertical forces are transferred. To secure the position Vertical pins 65 are provided. These are on the Pin-bearing walls 51.1 and 51.2 on the outside with their lower mounting ends 66 welded or in otherwise characterized by formative training.

The free receiving length 67 is over the bearing surface 61 somewhat lower or at most equal to the height of 68 Tread 69 of the scaffolding floor 40 over the Support surface 61. Their upper ends 70 are more common Way slightly tapered to insert into the Through-fixing holes 57 to facilitate. Your Attachment ends 66 have an attachment length 73 that according to the usual dimensions and designs manufacturing technology favorable and the power ratios Appropriate attachment or as Transitional area for a formative training in one chipless forming process can serve.

3 illustrates the power transmission from one, as a result of the stress 3, bent scaffold floor 40 on the stem 31. The relatively precisely arranged Vertical sleeve 58 is supported in the area of the upper end 70 of the vertical pin 65 at the upper pin force application point 6 on one side and in the area of the fastening end 66 of the vertical pin 65 at the lower pin force application point 7 on the opposite side, making a relative large pin support spacing 5 between the two counter-acting pin support forces 8 and 9 of the applied moment 10 is to be considered.

Due to the positive and positive connection between the scaffolding floor 40 and the vertical pin 65 can Stress 3 in a moment 1 about the axis 49 of the wedge head 46 are transferred. This supports itself with his upper and lower head parts 19 and 20 one in the relatively precisely designed horizontal slot 24 the perforated disc 48 non-positively and the other on the designed with radius 23, upper and lower System support surface 21 and 22 on the stem 31 form and non-positively.

As shown in FIG. 4, the upper head part 19 is supported with its upper inner limit 24.1 on one side of the wedge head 46 at the upper perforated disc force application point 13 with the upper perforated disc support force 11, while on the opposite side of the Wedge head 46 of the lower head part 20 with its lower Internal limitation 24.2 at the lower perforated disc force application point 14 with the lower perforated disc support force 12 supported. These support forces engage on the perforated disc the effective horizontal distance 4.

Because of the positive with respect to the stem 31 Design (radius 23) of the top and bottom Contact support surface 21 and 22, the wedge head 46 is supported also on one side with its upper head part 19 at the upper point of tangential force 17 with the upper one tangential head support force while on the opposite side of the lower head part 20 at the lower Tangential force application point 18 with the lower one supports tangential head part supporting force. This Support forces engage in the effective vertical distance 29 Handle 31.

In addition to supporting the wedge head 46 on the above mentioned support points, this is still based on the upper, radial head part supporting force 25 at the upper Radial force application point 27 and with the lower radial Head section support force 26 at the lower radial force application point 28, the two radial force points of attack the distance 2 is assigned (Fig. 4).

The particularly advantageous design of the wedge head 46 leads in connection with the large effective distances of the Support force application points on perforated disk 48 (Horizontal distance 4) and in particular on the handle 31 (Vertical distance 2 and distance 29) to an optimal Power and torque transmission to the handle with which Consequence that greater static and dynamic loads are tolerable or that the corresponding scaffolding parts weight-optimized dimensions.

The horizontal support bar 45 has on its underside Drain openings 84, so that a drain option for fluid media for surface treatment or for Rainwater is created.

To bridge the gap 76 between the ends 60 the one on both sides of the horizontal support bar 45 supported scaffolding floors 40.1 ... 4 and for prevention their take off is an anti-lift device 95 with a Bridging and anti-lift-off plate 80 provided, the support ends 81 with a support length 82 on the Support scaffolding floors 40.1 ... 4. In the middle are on its bottom securing hook 85 attached, which in Intervene with safety openings 86 with an elongated hole character. The hook ends 87 of the securing hook 85 are then below the support surface 88 of the horizontal support bar 45, if the Bypass and anti-lift plate 80 toward the transverse to the longitudinal extent of the scaffold floor Fuse opening 86 is moved so that it is in the Anti-counterfeit position is how it turns out DE 30 20 389 C2 results. Can be used for backfeed protection various auxiliary elements can be provided. Especially the known solution with a Safety flap 89 using a hinge joint 90 is attached and by means of their Slot 91 on the inner wedge surface 92 of the respective wedge 47 supports and so the Prevention of backfeed in a known manner.

Another design in kinematic reversal with the same Fig. 7 shows the security principle one of the bottom support plate 50 of the horizontal support bar 45 towering bending reinforcement and Locking washer 93 with hook slot 94 and above Engagement or insertion opening 97 is provided. To the another is under bridging and Anti-lift plate 80 also as a U-profile customizable double-bar arrangement 98, with receiving opening 99 to accommodate the locking plate 93, downwards designed, where appropriate Shift locking pins 96 are attached.

With this arrangement, anti-retraction means can also be used various types, especially with the help of Safety flap 89 may be provided.

8-10 show a in structure and arrangement of the Scaffolding elements of the same design, in which these their longitudinal dimensions to the scaffolding elements of others Manufacturers are adapted such that horizontal support bars with less, in one of the usual dimensions appropriately trained design can be used can, where only a narrow space 176 for the Penetration of the anti-lift device 95 between the mutually facing ends 155 of the longitudinal extent scaffold floors 140.1 ... 4 are provided are. To avoid lifting the Scaffolding floors 140.1 ... 4 are in the same way as in 5 and 6, an anti-lift means 95 with Lock-up and lift-off plate 80 is provided.

This design also shows the advantageous principles of modular scaffolding systems with perforated disks and themselves with their Support end faces on the tubes of the stems directly supporting wedge heads and from above and below with respect the wedge head elements inserted wedges.

One in terms of absorbing tipping forces around the Longitudinal scaffold floor axis improved design of a Horizontal support bar 245 with hat-like design The top shows Fig. 12. The horizontal support bar has an upper, support surface 262 and lower on both sides of the horizontal support beam 245 running, parallel contact surfaces 263.1 and 263.2 from Pin and pad supports 264.1 and 264.2. The Boundary surface 262 is approximately at the same height 276 as the surface 277 of the scaffold floors 240.1 and 240.2 so that the distance 278 of the upper boundary surface 262 from the Support surface 263 approximately the thickness 279 of the scaffold floors 240 equivalent. Between the upper boundary surface 262 and the bearing surfaces 263 are approximately perpendicular to these Surfaces and parallel to the end faces 255 of the Scaffolding floors 240 running end boundary surfaces 270.1 and 270.2 are provided. To secure the position are in the area of outward ends 271.2 and 271.2 of the horizontal Sift and pad supports 264 essentially follow vertical pins 265 extending above are provided which extend advantageously in precisely fitting through holes 272 Extend the lift and base supports 24.1 and 264.2. The Vertical pins 265 are in the area of their lower Attachment ends 266 to the pin and Base supports 264 preferably by welding attached. The free recording length 267 over the Support surface 263 is somewhat smaller or at most the same the height 268 of the tread of the scaffolding floors 240 above the Support surface 263.

The remaining features of the horizontal beam 245 correspond essentially to that described first Variant. Correspondingly, they are cross struts 252 below the upper boundary surface 262 provided a structured, rigid element with the pin and pad support 264 and an im essential box-shaped horizontal bar support tube 253 form, with wedge heads at the ends in a conventional manner are preferably attached by welding.

As part of the increasing use of modular scaffolding different manufacturers and different dimensions and different in individual connection areas designed scaffolding elements can occur or make sense be part of the scaffold with scaffold floors 339 too provided with claws or Claws 343 on horizontal support legs that are open at the top Support 344 while next to it with its contact surface part 359 on the horizontal contact surface 361 overlying scaffold floors 340 with in Distance from the front and side surfaces Through-fixing openings 357.1 and 357.2 are provided, preferably with supportive, power-transmitting and enabling good conditions of use Vertical sleeves 358 are equipped. Such a Horizontal support bar 345 is shown in FIG. 13 with its two different scaffold frame floors 339 and 340 and Connection devices shown schematically. On his rear end 354 is a wedge head 346 of here scaffolding system described in more detail with perforated disks 348 and Push-through wedges 347 shown. Here, however, for other scaffolding basic systems also a fastening device be provided to the node element of the other scaffolding system fits.

The vertical pins can in the connection area Horizontal support bars designed in different ways to meet the different requirements and constructive conditions of basic scaffolding systems To take into account. As shown in Figs. 14 and 15, can on the one hand in the area of their fastening ends 464 cylindrical vertical pins 463 may be provided. On the other hand, in the area of their fastening ends 466 drawn in, preferably semi-cylindrical Vertical pins 465 may be provided for one smaller pin spacing 416 or a larger width 418 of the horizontal bar 445 with its Horizontal bar support tube 453 technologically favorable can be realized. The vertical pins 463 and 465 are on the pin bearing walls 449.1 and 449.2 or 451.1 and 451.2 outside with their lower fastening ends 464 or 466 welded or in other ways by forming Education pronounced.

At the front in Fig. 16 perforated disc 48.2 is one Console 500 deals with a wedge head 46.3. The Console 500 has a horizontal support element 501, which with one attached to the wedge head end 554.1, approximately extending perpendicular to the horizontal support element 501 Vertical strut 502 and one from the free end or free end 554.2 to the vertical strut 502, in particular to their End 504 leading oblique strut 503 is equipped. The End 504 of the oblique strut 503 lies on the outside of the Tube 505 of the stem 31.2 loosely, while the wedge 47.3 the wedge head 46.3 in the usual way on the disc 48.2 sets. At the free end 554.2 of the horizontal support element 501 is a short vertical tube 506 fixed vertically with a weld seam 507 and has a thinner upper tube section 508 with a Transverse hole 509 for attaching further scaffolding elements, especially stem elements.

Just like the scaffolding floors 140.1 ... 4 they have Console scaffold floors 140.5 and 140.6 in size and arrangement corresponding through-fixing openings and are in the plugged in the usual way.

Here, too, the fact that the often console scaffolding floor 140 carrying large loads alone especially with deflection, with his Through-holes 57 provided with vertical sleeves 58 can support on the vertical pins 65 and thus a particularly good power transmission from the console scaffolding floor 140 on the handle 31 with the help of the wedge head 46 and its upper and lower contact support surfaces 21 and 22 of the upper and lower head parts 19 and 20 can be done (Fig. 18). The mechanism of power transmission takes place thereby as claimed above using the example of one Scaffolding floor explained with reference to FIGS. 3 and 4.

The horizontal support element 501 has a flat bottom support plate 550 and end pin support walls 551.1 and 551.2. The horizontal support element 501 is with a essential box-shaped support element support tube 553 formed, at the wedge head end 554.1 the wedge head 46.3 is preferably attached by welding. All Components usually exist for as bulk goods used steel scaffolding. For those special costly, but for quick transportation as well the quick assembly and disassembly of inexpensive light metal frames they can also consist of light metal.

The console scaffold floors 140.5 and 140.6 shown in Fig. 20 are shown just like that Scaffolding floors 140.1 ... 4 at a distance from their shorter end face 155 and from the Longitudinal vertical surfaces 156 at approximately the same distance horizontal through holes 57.1 and 57.2. This are usually designed with vertical sleeves 58. As Scaffolding floor material can be wood, but also metal or composite materials formed, common materials for Scaffold floors can be used. The dimensions of both the Scaffolding floor elements as well as for the arrangement of the Through-fixing openings 57.1 and 57.2 and their Distances from each other and from the forehead surfaces of the Scaffolding floors correspond to the scaffolding system to which they belong Usually include and the dimensions of the horizontal support bar are in accordance with those otherwise used To design scaffolding components.

The respective lies with a support surface part 159 End 160 of the console scaffolding floors 140.5 and 140.6 on the Support surface 561 of the horizontal support element 501 or its upper floor support plate 550, so that by simple Edition the vertical forces are transferred. to Vertical pins 65 are provided for securing the position. These are on the outside of the pin support walls 551.1 and 551.2 their lower attachment ends 66 welded or in otherwise characterized by formative training.

The free receiving length 67 is over the bearing surface 561 somewhat lower or at most equal to the height of 68 Tread 169 of the scaffolding floors 140.5 and 140.6 above the Support surface 561. Their upper ends 70 are more common Way slightly tapered to insert into the Through-fixing holes 57 to facilitate. Your Attachment ends 66 have an attachment length 73 that according to the usual dimensions and designs manufacturing technology favorable and the power ratios Appropriate attachment or as Transitional area for a formative training in one chipless forming process can serve.

The horizontal support element 501 has on its underside Drain openings 584, so that a drain option for fluid media for surface treatment or for Rainwater is created.

To bridge the gap 176 between the Ends 160 of the two sides of the horizontal support member 501 supported console scaffolding floors 140.5 and 140.6 and to prevent them from lifting off is a Anti-lift means 595 with a bridging and Anti-lift plate 580 is provided, the Support ends 581 with a support length 582 on the Support console scaffold floors 140.5 and 140.6. In the In the middle are safety hooks 585 on their underside attached, which in securing openings 586 Intervene elongated character. The hook ends 587 of the Securing hooks 585 are then under the support surface 588 of the horizontal support member 501 when the bridging and Lift-off plate 580 in the direction of crosswise Longitudinal extension of scaffold floors 140.5 and 140.6 extending securing opening 586 is moved so that it is in the anti-counterfeiting position as it stands out DE 30 20 389 C2 results. Can be used for backfeed protection various auxiliary elements can be provided. Especially the known solution with a Safety flap 589, which can be opened using a Hinge joint 590 is attached and by means of their Slot 591 on the inner wedge surface 92 of the supports the respective wedge 47.3 and so the Prevention of backfeed in a known manner.

Advantageously, to limit the backfeed Bridging and anti-lift-off plate 580 one end predominantly normal to it Stop tab 520 may be provided. For additional lateral fixation of the bridging and Lift-off securing plate 580, this can be an end predominantly perpendicular and normal to it Have double web or U-profile arrangement 598.

To bridge the gap 576 between the Scaffold floors 140.1 and 140.3 on the one hand and the Console scaffolding floors 140.5 and 140.6 on the other hand each have a bridging means 510 Bridging plate 511 is provided. This faces the end a lift-off fixation tab 512 on the down placed under the two bridging and Lift-off protection plates 80 and 580 engage. The width 515 the lift fixation tab 512 is smaller and the width the bridging plate 511 is larger than that Lateral distance 514 between the scaffold floors 140.1 or 140.3 and the console scaffolding floors 140.5 and 140.6.

Prevent the two anti-lift devices 95 and 595 therefore effective not only lifting the scaffolding floors 140.1 ... 4 and the console scaffold floors 140.5, 140.6, but also the removal of the bridging means 510.

An important part of the description is given below:
The invention relates to a scaffold (30) or scaffold part with a support structure element arrangement, which has a torsionally rigid space structure with the aid of supports (31), horizontal bars (35, 36, 45) and
Forms diagonal bars (37), and module grid dimensions in all three spatial directions and longitudinal connection grid dimensions for standard connecting scaffold floors (40.1 to 40.4). Horizontal support elements or
Support bar (45) is connected by means of a wedge (47) via wedge heads (46), which are plugged onto horizontally attached perforated disks (48) of the stems (31). The scaffold floors (40) are open
Horizontal support elements or support bolts (45) are at least partially secured against displacement by means of securing pins attached to them and supported against being lifted off.

LIST OF REFERENCE NUMBERS

1

moment

2

Vertical distance

3

demand

4

Horizontal Spacing

5

Pin spacing

6

lower Pin-point of force application

7

upper Pin-point of force application

8th

lower pin support force

9

upper pin support force

10

moment

11

upper perforated disc support force

12

lower perforated disc support force

13

upper perforated disc force application point

14

lower perforated disc force application point

15

upper tangential Headboard supporting force

16

lower tangential Headboard supporting force

17

upper point of tangential force

18

lower point of tangential force

19

upper headboard

20

lower headboard

21

upper support surface

22

lower support surface

23

radius

23.1

"

23.2

"

24

Horizontal slot

24.1

upper inner limit

24.2

lower inner limit

25

upper radial Headboard supporting force

26

lower radial Headboard supporting force

27

upper force point of application

28

lower force point of application

29

distance

30

framework

31

stalk

31.1

"

31.2

"

32.1

initial part

32.2

"

33.1

mother

33.2

"

34.1

Support foot

34.2

"

35

Horizontal longitudinal bars

36

Horizontal crossbars

37

Diagonal bars

40

framework floor

40.1

"

40.2

"

40.3

"

40.4

"

40.5

Console scaffold floor

40.6

"

42

first scaffolding level

45

Horizontal supporting bars

46

Wedge head

46.1

"

46.2

"

46.3

"

47

wedge

47.1

"

47.2

"

47.3

"

48

perforated disc

48.1

perforated disc

48.2

"

49

axis

50

Supporting base plate

51

Post supporting wall

51.1

Post supporting wall

51.2

"

52

cross brace

53

Horizontal bar-support tube

54.1

End of 53

54.2

"

55

end face

56

Longitudinal side vertical surface

57

Passage fixing hole

57.1

"

57.2

"

58

vertical sleeve

59

Support surfaces part

60

End of 40

61

bearing surface

65

vertical pin

66

attachment end

67

free recording length

68

height

69

tread

70

upper end of 65

73

Mounting length

75

distance

76

gap

80

Bridging and Abhubsicherungsplatte

81

support end

82

Länge

83

overall width

84

Drain port

85

safety hook

86

securing aperture

87

hook end

88

support surface

89

safety catch

90

hinge

91

slot

92

wedge surface

93

Bending reinforcement and lock washer

94

hook slot

95

Abhubsicherungs funds

96

Sliding-retaining pin

97

insertion

98

Double web arrangement

99

Receiving bore

130

framework

140

framework floor

140.1

"

140.2

"

140.3

"

140.4

"

140.5

Console scaffold floor

140.6

"

145

Horizontal supporting bars

150

Supporting base plate

151.1

Post supporting wall

151.2

"

153

Horizontal bar-support tube

154.1

End of 153

154.2

"

155

end face

156

Longitudinal side vertical surface

159

Seating portion

160

End of 140

161

bearing surface

168

height

169

tread

175

distance

176

gap

184

Drain port

186

securing aperture

188

support surface

240

framework floor

240.1

framework floor

240.2

"

245

Horizontal supporting bars

252

cross brace

253

Horizontal bar-support tube

255

End faces of 240

262

boundary surface

263

bearing surface

263.1

bearing surface

263.2

"

264

Pen and pad support

264.1

Pen and pad support

264.2

"

265

vertical pin

266

attachment end

267

free recording length

268

height

270.1

Frontal boundary surface

270.2

"

271.1

The End

271.2

"

272

Through Hole

276

height

277

surface

278

distance

279

Thickness of 240

339

framework floor

340

framework floor

343

claw

344

Horizontal support leg

345

Horizontal supporting bars

353

Horizontal bar tube

354

End of 353

357

Passage fixing hole

357.1

Passage fixing hole

357.2

"

358

vertical sleeve

359

Support surfaces part

361

bearing surface

365

vertical pin

415

pin spacing

416

pin spacing

417

Width of 423

418

Width of 453

423

Horizontal bar-support tube

444

Horizontal supporting bars

445

Horizontal Traoriegel

449

Post supporting wall

449.1

Post supporting wall

449.2

"

451

Post supporting wall

451.1

Post supporting wall

451.2

"

453

Horizontal bar-support tube

462

Width of 453

463

vertical pin

464

attachment end

465

vertical pin

466

attachment end

500

console

501

Horizontal support element

502

vertical strut

503

diagonal strut

504

End of 503

505

pipe

506

vertical tube

507

Weld

508

upper tube part

509

transverse hole

510

Uberbrückungs funds

511

bridging plate

512

Lift-off fixing lug

513

Width of 511

514

lateral distance

515

Width of 512

520

stop tab

550

Supporting base plate

551

Post supporting wall

551.1

Post supporting wall

551.2

"

553

Supporting-support tube

554.1

Kellkopf end of 553

554.2

Free end of 553

561

bearing surface

576

gap

580

Bridging and Abhubsicherungsplatte

581

support end

582

Länge

583

overall width

584

Drain port

585

safety hook

586

securing aperture

587

hook end

588

support surface

589

safety catch

590

hinge

591

slot

595

Abhubsicherungs funds

598

Double web arrangement

Claims (20)

1. Scaffold (30) with a load-bearing-structure-element arrangement, it being the case that a torsionally rigid three-dimensional load-bearing structure is formed with the aid of posts (31), horizontal bars (35, 36, 45) and diagonal bars (37), the scaffold (30) conforms to modular unit dimensions in all three directions in space and two longitudinal-connection unit dimensions for the scaffold platforms (40, 140, 240, 339, 340), and that the width unit dimension is selected to correspond to the width of the personnel working space and the height unit dimension corresponds to a modular height dimension for the variable subdivision of a personnel working height, and the longitudinal unit dimension corresponds to the horizontal extent of the size of a scaffold section and the longitudinal-connection unit dimensions, corresponding to the bearing-element configuration, are smaller than the longitudinal unit dimensions, having the following features:

   a. horizontal load-bearing crossmembers (45, 145, 245, 345, 444, 445), which are supported on the posts (31), are connected to junction elements by means of a wedge (47) in each case;

   b. the scaffold platforms (40, 140, 240, 339, 340; 140.5, 140.6) are supported on the horizontal load-bearing crossmembers (45, 145, 245, 345, 444, 445);

   c. platform-supporting means and crossmember bearing means are provided for supporting the scaffold platforms (40, 140, 240, 339, 340; 140.5, 140.6) on the horizontal load-bearing crossmembers (45, 145, 245, 345, 444, 445);

   d. the scaffold platforms (40, 140, 240, 339, 340; 140.5, 140.6) are prevented from lifting off and are at least partially secured against displacement;

   e. the horizontal load-bearing crossmembers (45, 145, 245, 345, 444, 445) have at their ends, or at one end, wedge heads (46) with horizontal slots (24) located approximately halfway up for the purpose of plugging onto horizontally arranged perforated discs (48) of the posts (31) and of plugging the wedges (47) through the head parts (19, 20) located above and beneath the associated perforated disc (48) and through the holes in the perforated disc (48) which, in the plugged-in state of the wedges (47), prevent mutual release of the elements without manual intervention;

   f. the scaffold platforms have cylindrical, vertically extending securing holes (57), at least in part, in the region of their ends;

   g. vertical pins (65) with dimensions matching the securing holes (57) are arranged on the horizontal load-bearing crossmembers (45, 145, 245, 345, 444, 445);

   h. the vertical pins (65) are arranged in accordance with the hole spacing and the end-surface spacing of the securing holes (57) provided in the scaffold platforms (40, 140, 240, 340; 140.5, 140.6) and project beyond a top crossmember bearing surface of the horizontal load-bearing crossmember (45, 145, 245, 345, 444, 445);

   i. the vertical pins (65) project beyond the crossmember bearing surface by way of a free accommodating length (67) which is somewhat less than or at most equal to the thickness of the scaffold platform (40, 140, 240, 340; 140.5, 140.6) and/or its bearing region;

   j. the perforated borders of the scaffold platforms (40, 140, 240, 340; 140.5, 140.6) are configured as base-supporting surfaces for bearing on the crossmember bearing surface,
   characterized by the following features:

   k. the securing holes (57) have continuous vertical sleeves (58) into which the vertical pins (65) can be introduced in a relatively accurately fitting manner;

   l. the horizontal load-bearing crossmember (45, 145, 245, 345, 444, 445) has engagement clearances (97) for accommodating at least one lift-off-prevention means (95; 595) covering the ends of the scaffold platforms (40, 140, 240, 339, 340; 140.5, 140.6).
2. Scaffold according to Claim 1, characterized in that the lift-off-prevention means (95; 595) is configured with a bridging and lift-off-prevention plate (80; 580) which is equipped, on the underside, with vertical spacer parts and horizontal supporting and fixing leg parts.
3. Scaffold according to at least either of Claims 1 and 2, characterized in that the lift-off-prevention means (95; 595) is equipped with securing hooks (85; 585) and an end securing flap (89; 589).
4. Scaffold according to Claim 2 or 3, characterized in that the supporting and fixing leg parts are designed with at least one displacement-prevention pin (96) which runs essentially horizontally and perpendicularly to the longitudinal axis of the horizontal load-bearing crossmember (45) and engages in a hook-like engagement opening (97) which is open at the top and belongs to the horizontal load-bearing crossmember (45) and/or horizontal supporting element (501).
5. Scaffold according to at least one of Claims 1 to 4, characterized in that the horizontal load-bearing crossmember (245) is designed with a supporting surface (262) which is located approximately level with the walking surface (69).
6. Scaffold according to Claim 5, characterized in that the bridging and lift-off-prevention plate (80; 580) is a thin sheet-metal or continuous-casting plate which is supported over at least relatively large surface regions of the supporting surface (262) and is equipped with securing hooks (85; 585) for fitting and fixing purposes.
7. Scaffold according to at least one of Claims 1 to 6, characterized in that the horizontal load-bearing crossmember (45, 145, 245, 345, 444, 445) has at least one vertical pin-carrying wall (51, 151, 449, 451; 551), on which the vertical pins (65) are fastened.
8. Scaffold according to at least one of Claims 1 to 7, characterized in that the vertical pins (65) are arranged on both sides of the horizontal load-bearing crossmember (45, 145, 245, 444, 445).
9. Scaffold according to Claim 7 or 8, characterized in that the vertical pins (65) at least partially overlap the pin-carrying wall (51, 151, 449; 551).
10. Scaffold according to at least one of Claims 1 to 9, characterized in that the horizontal load-bearing crossmember (45, 145, 245, 345, 444, 445) is configured with a horizontal-crossmember load-bearing tube (53, 153, 253, 353, 423, 453), which has at least one drainage opening (84, 184; 584) for fluid media on its underside.
11. Scaffold according to at least one of Claims 1 to 10, characterized in that, in the case of some of the scaffold platforms (340), the platform-supporting means contain vertically extending securing holes (57) in the region of their ends, whereas, in the case of other scaffold platforms (339), said means contain claws (343) in the region of their ends.
12. Scaffold according to at least one of Claims 1 to 11, characterized in that, on one side of the horizontal load-bearing crossmember (345), the crossmember bearing means are configured with vertical pins (65) with dimensions matching the securing holes (57) and also with crossmember bearing surfaces (361) for scaffold platforms (340) with securing holes (57), whereas, on another side of the horizontal load-bearing crossmember (345), the crossmember bearing means have crossmember bearing surfaces (341) for scaffold platforms (339) with claws (343).
13. Scaffold according to Claim 12, characterized in that the heights of the two crossmember bearing surfaces (341, 361) are co-ordinated with one another such that the walking surfaces of the scaffold platforms (339) with claws and the walking surfaces of the scaffold platforms (340) with securing holes are located approximately at the same level.
14. Scaffold according to at least one of Claims 2 to 6, characterized in that, on the. side which is oriented away from the securing flap (589), the bridging and lift-off-prevention plate (580) has a stop lug (520) arranged approximately perpendicularly to the plate plane.
15. Scaffold according to at least one of Claims 2 to 6, characterized in that, on the side which is oriented away from the securing flap (589), the lift-off-prevention means (595) has a double-web arrangement (598) running perpendicularly to the plate plane, the spacing between the webs corresponding approximately to the diameter of the posts (31) (Figure 19).
16. Scaffold according to at least one of Claims 1 to 15, characterized in that a bridging means (510) formed by a bridging plate (511) is provided for bridging the gap between the bracket-type scaffold platforms (140.5 and 140.6) and the other scaffold platforms (140.1 and 140.3) located opposite.
17. Scaffold according to Claim 16, characterized in that the bridging means (510) is configured with a lift-off fixing lug (512) which grips, on the one hand, beneath the lift-off-prevention plate (580) of the lift-off-prevention means (595) and, on the other hand, beneath the lift-off-prevention plate (80) of the lift-off-prevention means (95).
18. Scaffold according to Claim 17, characterized in that the bridging means (510) is secured against lateral displacement by means of the lift-off fixing lug (512), which is fitted between the mutually facing, lateral end surfaces of the bracket-type scaffold platforms (140.5 and 140.6) and the other scaffold platforms (140.1 and 140.3) located opposite.
19. Scaffold according to at least one of Claims 1 to 18, characterized in that the support for the ends of scaffold platforms which are assigned to a pair of posts (31.1; 31.2), and are located on both sides of the vertical plane common to the two posts, is spaced apart to a considerable extent (spacing 75) such that the bearing on the cantilever parts which are secured in a non-tilting manner on the perforated discs of the posts by means of wedge heads results in a Gerber-beam-like design of the respective storey portion.
20. Scaffold according to at least one of Claims 1 to 19, characterized in that the load-bearing-structure-element arrangement is configured with brackets (500) which, instead of the horizontal load-bearing crossmember, each have a horizontal supporting element (501), with a wedge head (46.3) fastened at one end (554.1) with a free end (554.2), with a vertical strut (502) which is fastened at the wedge-head end (554.1), butts against the post (31) and runs approximately perpendicularly to the horizontal supporting element (501), and with a sloping strut (503) running from the free end (554.2) to the vertical strut (502) and with vertical pins (65), which are provided with dimensions matching the securing holes (57) of the scaffold platforms or bracket-type scaffold platforms (140.5, 140.6).

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