EP3121143A1 - Framework element for a bearing structure of an escalator or moving walkway - Google Patents

Abstract

The invention relates to a truss element (1) of a supporting structure (2) of an escalator (100) or a moving walkway (100). The truss element has a one-piece design, wherein at least three extensions (3, 4, 5, 6) are provided which lie in all three space dimensions. At least at one for a longitudinal direction (Y) of the structure (2) provided extension (4) and at one for a height direction (Z) of the structure (2) provided extension (5) connecting points (42, 43) are provided. The connection points (42, 43) are designed so that a connection with other elements of the structure (2) is possible.

Description

The invention relates to a truss element, which is used for a structure of an escalator or moving walk, a structure for an escalator or a moving walk and an escalator or a moving walk. Specifically, the invention relates to the field of escalators and moving walkways, which are supplied and mounted during assembly in a building such as a building, a train or subway station, an airport or the like with a one- or multi-part supporting structure.

Escalators or moving walks have a load-bearing structure, which is called a supporting structure. In general, such a structure is designed as a truss structure, which is manufactured by the manufacturer as a whole unit or divided into several structural modules. Depending on the configuration, the structure may also extend over two or more levels of the building. For storage of the structure here are suitable bearing points provided on the building. The supported in the mounted state at the bearing points of the building structure takes on movable and stationary components, depending on the design of the escalator or the moving walk, for example, as a step band, pallet band, deflection axles, drive shafts, drive motor, transmission, control, monitoring system, security system, balustrades, Comb plates, bearings, raceway and guide rails are formed.

From the WO 2013/029979 A1 versions of escalators and moving walks with a structure and a soffit plate are known. The structure of the known design can be divided into structural modules, to each of which a separate soffit plate can be mounted. Although both frictional, cohesive and positive connections are considered suitable for fastening the soffit sheet, for example, a pure bond is not considered suitable because, for example, polymer materials flow or creep under load. Thus, it becomes clear that even more to connect the individual parts of the structure and possibly the truss modules with each other only Compounds of correspondingly high strength are suitable. As a rule, a considerable number of welded joints are realized for this purpose.
In order to produce a supporting structure or structural module, usually a plurality of sectional steel elements of different cross-sectional area and cross-sectional shape are welded together. The interfaces to the building can in this case be designed as so-called bearing angles, which are made of a thick-walled angle steel, and arranged with respect to their function at the two ends of the one or more parts truss. In the assembled state, all forces acting on the truss are then introduced into the building via these bearing angles at the bearing points. Thus, it becomes clear that this requires very solid support angle, with their massive design is required primarily in the corners or support points. On the other hand, far smaller cross-sections may be sufficient between the adjacent corner points of a truss end, since the forces or mechanical stresses acting therebetween are much smaller.

Since several ends of sectional steel elements are now welded to the corner points of the bearing points in the context of such a production, this region has an accumulation of large welded seams. This results in this area at the support angle considerable thermal stress during welding, which reduces the mechanical strength. As a remedy stiffeners are now again required especially in the corner, for which usually gusset plates are used. These additional and thus additionally to be assembled components in turn increase the number and length of the welds, which makes the production of the framework expensive and expensive. Another disadvantage of the production concerns the expense of subsequent straightening, which are often still required despite the installation of the gusset plates. Since escalator structures are safety-related components, ultrasound inspection of the welds must be performed.

An object of the invention is to provide a truss member, which serves for a structure of an escalator or a moving walkway, a supporting structure or structural module with such a framework element and an escalator or moving walk with such a structure, which are designed improved. Specifically, it is a task of Invention, such a framework element, such a structure or structural module and an escalator or a moving walk with such a structure indicate that the production of the structure of a reduced number of components, with lower costs and / or with a smaller impact on the resilience due to lower has thermal effects by the production of welds or the like and / or a reduced total mass and thus a reduced weight or a higher overall strength for a given mass.

In the following, solutions and suggestions for the mentioned tasks are described with which at least parts of the tasks can be solved. In addition, advantageous complementary or alternative developments and refinements are given.

For such a solution, a truss member of a structure of an escalator or a moving walkway is proposed which has a one-piece design. Under one-piece design is understood in the present document, an embodiment of the truss element made of one piece. The half-timbered element not installed in the structure has no cohesive, positive and non-positive connection points, which hold it together. Therefore, only methods of casting, forging, sintering, three-dimensional printing or material-removing machining processes are used as production methods of such a truss element. At the truss element at least three extensions are provided, which are in all three spatial dimensions, being provided at least at one provided for a longitudinal direction of the structure extension and provided for a height direction of the structure extension points and wherein the connection points are designed so that a connection is made possible with other elements of the structure.

Furthermore, a structure for an escalator or a moving walkway with at least one truss element is proposed for a solution, which is configured as just mentioned. Furthermore, the solution proposed to realize an escalator or moving walk with at least such a structure.

The three extensions of the one-piece design are in all three dimensions of space, so that when installing the truss member in the structure a determination of three degrees of freedom is present after a connection with other elements at each of the extensions has been made. Advantageously, these three extensions are each oriented at a right angle to each other. This ensures a restriction of the relative degrees of freedom in three independent room dimensions. After installation and the firm connection with the other elements of the structure, a geometrical arrangement or fixing is already ensured on account of the orientation of the three extensions. Additional assembly steps and a message, which for example requires the use of suitable straightening or teaching, can be saved. In contrast to a support node of the conventional embodiment, the truss element according to the invention can serve as a reference system.

The truss element is designed in terms of its position and thus its proper function within the structure suitable. Here, several identical or different truss elements may be arranged together in a supporting structure or in structural modules. Furthermore, truss elements may also be specially adapted to allow connection between individual truss modules in final assembly, if a modular design is provided.

In a possible embodiment, it is thus advantageous that the one-piece design forms a support node. The support node has, inter alia, the function of ensuring, preferably in combination with a further support node, the support at a specific support point in the building or the like for the entire support structure. The one-piece design then preferably forms a single support node, wherein a further truss element is provided with a further one-piece design to realize together the support at the particular bearing point in the building or the like. In a modified embodiment, these two support nodes can also be integrated into a one-piece design, as also described in more detail below.

Furthermore, it is advantageous that at least one of the support nodes Support point is formed, is made possible at the installation of an escalator or moving walk in an installation space of a building, a support of the structure. The bearing point can hereby be realized as a bearing surface with threaded holes, into which adjusting screws or the like, if necessary, for leveling the escalator or moving walk are inserted. Further, the support node in the width direction may have a connection point to make a mechanical connection to the adjacent support node directly or via an intermediate element such as a connection angle.

In a further possible embodiment of the truss element, it is advantageous that the one-piece embodiment forms a connection node, wherein the connection node is designed so that it can be arranged within the structure in order to produce a connection of elements of the structure. In this case, in particular, a single connection node can be formed.

In this embodiment, an improved connection of the individual elements with each other within the structure and possibly within the structural module by at least one such connection node. Specifically, in this case, a restriction of the degrees of freedom in three spatial dimensions and a defined by the configuration of the connection node off or device is specified. Furthermore, a high mechanical stability of the connection node in relation to the material use is possible. Thus, the connection node is especially suitable for places where high mechanical loads occur. As compared to training with gusset plates and similar stabilizing elements and a significant number of welds or similar compounds can be saved, there is also a reduced production cost, fewer sources of error due to poorly executed joints and thus a lower inspection costs.

However, such a connection node can also be designed such that it is arranged between at least two segments, in particular longitudinally considered segments, of the structure in order to install the escalator or the moving walkway in an installation space, alone or together with at least one further connection node, to connect the segments of the structure. this has the advantage that a modular design is made possible, among other things, an improved final assembly is possible. In particular, an alignment and alignment of the individual segments relative to one another can be substantially simplified via the connection nodes. Since the connection node has three extensions which lie in all three spatial dimensions, the relevant alignments of the individual segments with respect to one another already result constructively.

It is also advantageous that a connection point is provided at an extension provided for a width direction, which is designed so that a connection with other elements of the structure is possible. Specifically, it is advantageous in this case that the extension provided for the width direction has an L-shaped profile and that the connection point is designed such that a connection with a further support node or connection node of the structure is made possible via a connection angle. In this embodiment, in particular two truss elements of each one-piece design can be connected to each other via their intended for the width direction extensions to achieve a symmetrical with respect to the two sides of the configuration. In this case, in particular in the two extensions formed with L-shaped profiles a connecting angle inserted and each connected to one of the truss elements, in particular welded, are. In a modified embodiment, it is also possible here that additionally or alternatively the extension provided for the width direction has a flat end face, so that a flush abutment against the further element or the further support node or connection node of the support structure is made possible. In this way, in particular the two said truss elements, which are each based on a one-piece design, can be placed flush against each other and connected to one another, for example, with a reinforcement angle. At the same time, a defined distance between the longitudinal sides of the structure or structural module is set via the flush abutment.

In a further possible embodiment of the truss element, which serves for a supporting structure of an escalator or moving walkway, it is advantageous that the one-piece design forms a support angle, which includes two support nodes or connection nodes. In this embodiment, thus a further integration of several elements in a truss element done. This results in specific advantages. For example, a distance between the longitudinal sides of the structure in this embodiment may already be structurally predetermined, which further simplifies assembly, inter alia, with regard to setting up and aligning. Another advantage is that in one embodiment as a support node, the support can be realized at the bearing point of the building without further intermediate elements, whereby an unfavorable influence of a protruding weld, protruding fasteners or the like is avoided from the outset. A possible post-processing of the one-piece design, which may relate, for example, the introduction of holes for leveling screws, can then be limited to other functions to allow attachment or support on the building or the like. The elimination of joints, such as welds, rivets or the like, between the adjacent support nodes or connection nodes also eliminates design restrictions, resulting in greater design freedom in relation to the other functions.

Specifically, it is advantageous in this case that the bearing angle has two extensions provided for the longitudinal direction, which are arranged parallel to and on the opposite longitudinal sides for the supporting structure, and / or that the bearing angle has two extensions provided for the height direction, which are parallel and to the opposite Longitudinal sides are arranged for the structure. By such mutually parallel extensions there are, inter alia, advantages in assembly, since geometric inputs and alignments are partially eliminated and sometimes considerably simplified, and in terms of stability, since the two parallel extensions and possibly both extending in the longitudinal and vertical direction Extensions are part of a single piece, in particular casting, forging, sintered piece, manufactured by three-dimensional printing process piece, manufactured by material removal machining process piece and weak points due to connection-related weakening of the material structure are therefore excluded from the outset.

Furthermore, it is advantageous in this case that the support angle has a single extension provided for the width direction, which integrates into both support nodes is. In this way, in particular a high rigidity with respect to pressure and tension can be achieved over the extension extending in the width direction. The extension provided for the width direction may in this case have a tapered connecting web between the two support nodes. As a result, an advantageous optimization with regard to the use of material and thus also the weight can take place with respect to generally lower mechanical stresses in the width direction.

In the formation of a truss element, it is also generally advantageous if at least one support node or connection node of the one-piece design, a cross member between the extension provided for the longitudinal direction and provided for the height direction extension is provided on which a connection point is provided, the is configured so that a connection with the other elements of the structure is possible. About such a cross brace in particular a stiffening against regularly occurring bending forces along the structure is possible, which occur due to the support of the structure at its two ends. Before the assembly of such a truss member is then advantageously prepared by the at least one transverse strut preparation for the connection with other elements that serve for such a stiffening. Furthermore, one or more connecting points serving for this purpose can be displaced out of a particularly stressed area of the truss element via the configuration of the transverse strut. The region of the truss element, which is usually subjected to particularly high stress, usually includes the subregion in which the extensions run together.

Furthermore, it is advantageous that the one-piece design on at least one support node or connection node, an angle between the extension provided for the longitudinal direction and the extension provided for the height direction and / or an angle reinforcement between the extension provided for the width direction and the extension provided for the height direction and / or having an angle stiffening between the extension provided for the longitudinal direction and the extension provided for the width direction. Such an angle stiffening can thus be integrated into the one-piece design, so that due to the uniform microstructure of the material results in a high stability and also connection-related vulnerabilities, as to Spot welds or welds occur, eliminated. Such weak points are especially slag inclusions, but also due to the thermally altered structure caused by stiffness jumps, which in turn lead to voltage spikes in the component.

Moreover, it is advantageous that the one-piece design has at least one control cabinet hook and / or at least one suspension lug. The one-piece design can also have other elements that serve for example for fastening components of the escalator or the moving walk. As a result, for example, a control cabinet for a controller, a motor, a transmission or the like can be attached to the truss element. Furthermore, elements such as the suspension lug can also be used for assembly, for example by means of a crane to lift the structure into the building and to position. This also simplifies the assembly of the structure, since the attachment, in particular welding, of such additional elements, such as a control cabinet hook or a suspension lug, can be saved.

The one-piece design can be realized in an advantageous manner by a casting, forging, sintered piece, a piece produced by three-dimensional printing process or piece produced by material-removing machining processes. The one-piece design is hereby realized in an advantageous manner as a single piece, which holds itself together without additional cohesive connections, such as welds.

The truss element is thus preferably made by a cast steel or malleable. In addition to the aforementioned possibility of forging or drop forging, it is also conceivable to produce the truss element made of fiber composite materials. With regard to the functionality, a truss element, depending on the design, may specifically form a support node or two support nodes, namely a left and a right, which replaces the support angle and the gusset plates at the end of a conventional truss structure for a supporting structure. In this case, the support node unites at least one support zone and apart connection extensions or connection points for profile elements, in particular sectional steel elements, such as a top flange, diagonal struts, vertical struts and connecting struts two bearing angles, the truss. The cross sections of the support node can be configured optimized according to the power flow, which in particular not too much material is used. The support node combines several different functions.

Of course, further elements may be integrated in the support nodes, such as the suspension eye, which additionally stiffen the corner region of the support node, the control cabinet hook, a lubricating pump bracket, stiffening ribs and in particular serving as a step stiffening rib.

In one embodiment, which has only one support node, usually only two production forms are necessary, namely one for the left and one for the right, since the same support nodes can be used at both ends of the structure. In this case, an adaptation of the width with respect to the desired step width by welding an angle steel profile or the like between the right and the left support node done.

In one variant, two support nodes, namely for the right and left, connected by means of a waisted connection portion monolithically. As a result, a corresponding production form is required for each desired timber width or step width. By a possible sidecut the truss element thus created can be made lighter, thereby avoiding unnecessary accumulation of weight.

By the at least one support node having truss element, the structure of the sensitive and heavily loaded bearing point of the structure can be simplified and reinforced despite lower material usage. With the truss element a faster production of the structure or truss is possible. The spatial production of the structure is simplified because the connection points of the or the support nodes specify the spatial orientation of the subsequent truss struts or the like exactly.

Figur 1

ein als Auflagerknoten ausgebildetes Fachwerkelement gemäß einem ersten Ausführungsbeispiel der Erfindung in einer gegenüberstellenden räumlichen Darstellung zu einer herkömmlichen Ausgestaltung eines auszugsweise dargestellten Tragwerks gemäß einem internen Stand der Technik;

Figuren 2A und 2B

schematische Darstellungen des in Figur 1 dargestellten, als Auflagerknoten ausgebildeten Fachwerkelements gemäß dem ersten Ausführungsbeispiel der Erfindung im Aufriss und Seitenriss;

Figur 3

eine Anordnung aus zwei separaten, als Auflagerknoten gemäß dem ersten Ausführungsbeispiel der Erfindung ausgebildeten Fachwerkelementen zur Erläuterung einer möglichen Fertigung eines Tragwerks;

Figur 4

eine Anordnung aus zwei separaten, als Auflagerknoten gemäß dem ersten Ausführungsbeispiel der Erfindung ausgebildeten Fachwerkelementen zur Erläuterung einer weiteren möglichen Fertigung eines Tragwerks;

Figur 5

eine schematische Darstellung des in Figur 1 dargestellten, als Auflagerknoten ausgebildeten Fachwerkelements gemäß einem zweiten Ausführungsbeispiel der Erfindung;

Figur 6

eine schematischen Darstellung eines zwei benachbarte Auflagerknoten umfassenden Fachwerkelements in einer schematischen Darstellung gemäß dem zweiten Ausführungsbeispiel der Erfindung und

Figur 7

ein Tragwerk gemäß einer möglichen Ausgestaltung der Erfindung, in das Fachwerkelemente gemäß verschiedenen möglichen Ausführungsbeispielen der Erfindung eingebaut sind;

Figuren 8A - 8E

die im Tragwerk der Figur 7 verbauten Fachwerkelemente in größerer Darstellung.

Preferred embodiments of the invention are in the following description with reference to the accompanying drawings in which corresponding elements with matching reference numerals are provided, explained in more detail. Show it:

FIG. 1

a truss element formed as a support node according to a first embodiment of the invention in a confronting spatial representation to a conventional embodiment of an excerpt illustrated structure according to an internal prior art;

FIGS. 2A and 2B

schematic representations of in FIG. 1 illustrated, designed as a support node truss element according to the first embodiment of the invention in elevation and elevation;

FIG. 3

an arrangement of two separate, designed as a support node according to the first embodiment of the invention truss elements to illustrate a possible production of a structure;

FIG. 4

an arrangement of two separate, designed as a support node according to the first embodiment of the invention truss elements to illustrate a further possible production of a structure;

FIG. 5

a schematic representation of the in FIG. 1 illustrated, designed as a support node truss element according to a second embodiment of the invention;

FIG. 6

a schematic representation of a two adjacent bearing nodes comprehensive truss element in a schematic representation according to the second embodiment of the invention and

FIG. 7

a structure according to a possible embodiment of the invention, are incorporated in the truss elements according to various possible embodiments of the invention;

Figures 8A-8E

in the structure of the FIG. 7 built timbered elements in a larger scale.

FIG. 1 shows a truss element 1 according to a first embodiment and elements of a conventional embodiment of a structure 2 in an opposing arrangement, in which individual elements are replaced by the truss element 1. The truss element 1 of the first embodiment is in this case designed as a support node 1, which is shown in a schematic, spatial representation and with respect to a reference system with three spatial dimensions X, Y, Z aligned. The framework 2 shown in excerpts is a possible embodiment according to an internal state of the art of the applicant. Through the confronting representation of the truss element 1 and the conventional structure 2 it becomes clear which elements can be replaced by the truss element 1, which relevant functions are realized and which additional functions can be integrated.

The truss element 1 of the first embodiment has extensions 3, 4, 5, 6. The reference system with the axes X, Y, Z is oriented so that the direction X is the width direction X of the structure 2, that the direction Y is the longitudinal direction Y of the structure 2 and that the direction Z is the height direction Z of the structure 2. The extensions 3, 4, 5 of the truss element 1 are oriented relative to one another so that the extension 3 for the width direction X, the extension 4 for the longitudinal direction Y and the extension 5 for the height direction Z of the structure 2 is provided. In accordance with the rectangular reference system, the extensions 3, 4, 5 are also oriented in pairs perpendicular to each other, so that they are in all three space dimensions X, Y, Z, which are independent of each other. In a modified embodiment, however, it is also conceivable that the extensions 3, 4, 5 while spanning a three-dimensional space and thus are also in all three dimensions of space X, Y, Z, the condition that they are each oriented in pairs perpendicular to each other, but is not fulfilled. Such a possible embodiment is also based on the FIG. 7 explained in more detail.

The extension 6 is provided in this embodiment as a transverse strut 6 between the extension 4 provided for the longitudinal direction Y and the extension 5 provided for the height direction Z. On the cross strut 6, a connection point 7 is formed, which is designed so that a connection with other elements, in this case a the element 8 of the conventional embodiment 2 accordingly Element 34 of the structure 2 is possible. On the orientation of the cross member 6 in this case a spatial orientation of the element 8 is specified within the reference system.

The truss element 1 with the extensions 3 to 6 is designed in one piece. The one-piece design here comprises further elements 9 to 12. The element 10 may be formed, for example, as a control cabinet hook. Such an element may also be formed as a lubricating pump stirrup, stiffening rib, stiffening rib formed in the form of a tread, or the like. In addition, thereby suspension eyes 13, 14 ( FIG. 6 ) integrate into the one-piece design, which are examples of further possible elements 13, 14.

The element 9 is formed in this embodiment as an angle stiffener 9 between the extension 4 provided for the longitudinal direction Y and the extension 3 provided for the width direction X.

In addition, the truss element 1 is formed, in particular cast so that more angle stiffeners 20, 21 are formed. The angle stiffeners 20, 21 are derived from surface shapes, wherein for optimizing the voltage at the angle stiffener 20 recesses 22, 23 and the angle reinforcement 21, a recess 24 is provided. The angle reinforcement 20 is formed between the extension 4 provided for the longitudinal direction Y and the extension 5 provided for the height direction Z. The angle stiffener 21 is formed between the extension 3 provided for the width direction X and the extension 5 provided for the height direction Z. The geometric configuration including the geometry of the recesses 22, 23, 24 can be optimized and set in a suitable manner, which can be realized for example by a numerical method, such as the finite element method (FEM).

The conventional design of the structure 2 has at the location of the Auflagerknotens 30 a plurality of elements 31 to 36 and a connection angle 37.

According to a possible embodiment of the invention, instead of the support node 30 a to the support node 1 mirror-symmetrical support node 1 'inserted into the structure 2. As a result, the support node 30 can also be replaced. In this case, a corresponding adaptation of the elements 32, 33, 34. This corresponds to an adapted embodiment of elements 8, 38, 39, which are connected to the truss element (support node) 1.

With regard to the support node 30, however, the elements 35, 36 are required as additional elements 35, 36, which are formed as a gusset plate 35 or reinforcing angle 36. From the geometric arrangement of the elements 31 to 36, it can be seen that connections in this connection and welding seams that are produced in particular are located close together in a small space. These welds cause a mechanical weakening, which contributes, as already stated in the introduction, that the gusset plate 35 and the reinforcement angle 36 are required. Nevertheless, the design of the support node 30 from the individual elements 31 to 36 has the decisive disadvantage that the geometric orientation with respect to the axes X, Y, Z is complicated. Part of this effort is also that it can not be ruled out that a message or stretching is required, which in turn requires a review and then possibly again requires a message.

By contrast, the truss element 1 according to the first exemplary embodiment of the invention is able to define the reference system or reference system with the axes X, Y, Z and thus to specify an orientation for the elements 8, 38, 39 to be connected. In contrast to the support node 30 of the conventional embodiment, the truss element 1 according to the exemplary embodiment of the invention serves as a reference system. In addition, the high mechanical strength, since the joints of a region 40 in which the extensions 3 to 6 run together, can be laid out. The area 40 can therefore be kept free of welds or the like. The welds may be provided, for example, at connection points 7, 41, 42, 43. It is understood that the welds may extend toward the region 40. But even then no welds are required to hold the truss element 1 together. In this regard, it is obvious that between the extensions 3 to 6 of the truss element 1, but also for elements 9 to 14, no joints, such as welds, are required, since these all already due to the one-piece Hang configuration together.

The intended for the width direction X extension 3 has an L-shaped profile. Furthermore, the connection point 41 on the extension 3 is configured in such a way that, for example, via a connection angle-corresponding element which extends from the support node 1 to the support node 1 arranged in place of the support node 30, mirror-symmetrically arranged on the support node 1, a connection with This further support node 1 'is possible, as it is based on the FIG. 4 is illustrated.

In such a compound of truss elements 1, 1 'is also a flush system possible, as it is based on the FIG. 3 is illustrated.

FIG. 2A shows a schematic representation of the in FIG. 1 shown, designed as a support node 1 truss element 1 according to the first embodiment in elevation and FIG. 2B shows its side elevation. It can be seen here that the recesses 22, 23 provided in the angle reinforcement 20 are at least approximately circular in this exemplary embodiment. However, other embodiments are conceivable. Specifically, at least approximately elliptical or at least approximately triangular configurations are conceivable. An at least triangular configuration is realized in this embodiment for the recess 24 in the angle bracing 21, as it is based on the FIG. 2B is illustrated.

The cabinet hook 10 is formed in a suitable manner to hang a cabinet thereon.

An angle stiffener 9 can also be configured as a rod-shaped angle reinforcement 9, as it is among others from the FIGS. 1 and 2A, 2B is apparent. Here, in particular the FIG. 2B can be taken that the rod-shaped angle stiffener 9 does not end at the extension 4, but at a separate rib 71. This rib serves to reduce stress peaks and, if the truss element is designed as a cast steel part, absorbs the shrinkage of the rod-shaped angle stiffener 9 during the solidification process ,

FIG. 3 shows an arrangement 1, 1 'of two separate, designed as a support node 1, 1' according to the first embodiment of the invention truss elements 1, 1 'to explain a possible production of a structure 2. The truss element 1 is in this case with respect to the X-axis mirror-symmetrical formed the truss element 1. Accordingly, the truss element 1 extensions 3 ', 4', which correspond to the extensions 3, 4 of the truss element 1, a connection point 42 'on the extension 4', which corresponds to the connection point 42, a rod-shaped angle stiffener 9 ', which corresponds to the angle stiffener 9 , and a cabinet hook 10 ', which corresponds to the cabinet hook 10. Furthermore, 3 holes 50 are formed on the extension, of which only one is provided with reference numerals for simplicity of illustration. According to the truss element 1 'holes 50' are formed. Furthermore, a half slot 51 is formed on the extension 3 of the truss element 1, the mirror-symmetrical half a slot 51 'corresponds to the truss element 1'.

In this embodiment, these provided for the width direction X extensions 3, 3 'of the truss elements 1, 1' facing each other, flat end faces 52, 52 'on which a flush bearing of the truss elements 1, 1' to each other on impact. Here are the two half slots 51, 51 'to a slot 51, 51' together. Depending on the application, this can be used as an assembly aid and / or for connection. Furthermore, a connection angle 37, as he also with reference to the FIG. 1 and 4 is illustrated in the L-shaped profiles of the extensions 3, 3 'inserted and connected in a suitable manner with the truss elements 1, 1'. The connection angle 37 is here in the FIG. 3 concealed.

By taking place in this way assembly and connection of the truss elements 1, 1 ', the extensions 4, 4' for the longitudinal direction Y are aligned parallel to each other. The same applies to the two extensions 5 of the truss elements 1, 1 '. This is in the FIG. 3 Although not shown, but from the FIG. 1 can be seen, if one considers that the extension 5 of the truss element 1 'corresponding to the extension 5 at least partially replaces the element 33.

In this arrangement, on impact is also the outer distance 53 and the Total width 53 of the interconnected truss elements 1, 1 'minimal. Of course, this minimum overall width 53 is dependent on the respectively realized geometric design of the truss elements 1, 1 '.

FIG. 4 shows an arrangement 1, 1 'of the two separate, as a support node 1, 1' formed truss elements 1, 1 ', as already in the FIG. 3 to illustrate a further possible production of a supporting structure 2. In this embodiment, a distance 55 is set between the mutually facing flat end faces 52, 52 '. The connection angle 37 is designed in this embodiment so that it can absorb the mechanical forces required for the bridging. The connection angle 37 is in this case formed with an extension 56 provided in the width direction X, which is larger than the distance 55, wherein in particular the space required for welds or the like is taken into account. The overall width 53 is thereby larger than in the embodiment according to FIG FIG. 3 the case is when the same truss elements 1, 1 'are used. Thus, an adaptation to the particular application or to a specified step width can be carried out in a simple manner, without a structural change of the truss elements 1, 1 'is required. In practice, the minimum total width 53, which in the FIG. 3 is to be tuned with respect to the minimum step width. Larger total widths 53, one of which in the FIG. 4 can then be established by selecting the appropriate connection angle 37.

FIG. 5 shows a schematic representation of a two support nodes 1A, 1B (FIG. FIG. 6 ) having truss element 1 according to a second embodiment. In this embodiment, a detail is shown to illustrate the position of a molded member 13 formed as a suspension loop 13. Furthermore, a possible embodiment of the extension 4 is illustrated with an L-shaped profile. In this embodiment, an outer width 58 of the extension 4 remains within the overall width 53. The extension 4 is thus set slightly inward.

FIG. 6 shows a schematic representation of a two adjacent support nodes 1A, 1B comprising truss element 1 in a schematic representation according to the second embodiment. Here, the two support nodes 1A, 1B together integrated into a truss element 1. Instead of separate extensions 3, 3 'in this case a single provided for the width direction X extension 3, 3' is provided, which is integrated in both support nodes 1A, 1B. The extension 3, 3 'in this case has a tapered connecting web 59 between the two support nodes 1A, 1B. As a result, the use of materials can be optimized.

Due to the integrated design, the geometry is fixed on both sides. In particular, in this way the extensions 4, 4 'are oriented parallel to one another. The in the FIGS. 5 and 6 illustrated support node has in the height direction Z no specific, extended connection points. However, it is quite possible to provide an extension to the support node 1A and the corresponding extension of the support node 1B in this direction.

About the width 60 of the connecting web 59, the total width 53 and the outer width 58, which extends on both sides over the extensions 4, 4 ', given.

The one-piece embodiment according to the second embodiment forms over the common extension 3, 3 'a support angle 85, which includes two support nodes 1A, 1B. As a result, the assembly and connection of the individual parts of the structure 2 is greatly facilitated.

The two longitudinal sides 61, 62 of the structure 2 may lie directly on the outer sides of the extensions 4, 4 ', as it is based on the FIG. 3, 4 is exemplified, or even slightly spaced from the extensions 4, 4 ', as it is based on the FIG. 6 is illustrated. The respective position of the longitudinal sides 61, 62 of the structure 2, however, depends on the attachments, so that the positions of the longitudinal sides 61, 62, as they are based on the FIG. 3, 4 and 6 are to be understood by way of example.

FIG. 7 shows a supporting structure 2 according to a possible embodiment of the invention, are incorporated into the truss elements 1.1 to 1.7 according to various possible embodiments of the invention. It is understood that for each of the truss elements 1.1 to 1.7 a one-piece design, as they are based on the FIGS. 5 and 6 is illustrated, or an embodiment with a corresponding, opposite truss element, as it is based on the FIGS. 3 and 4 illustrates is, can be provided. With regard to the truss elements 1.1 and 1.2, there is no increase in the number of geometrically different components, since a rotated by 180 ° installation is possible. At the truss element 1.1 a bearing point 63 is formed, to which when installing the escalator 100 with the structure 2 in the installation space 64, a support of the structure to a support 65 is possible. Accordingly, a bearing point 66 results on the truss element 1.2 in order to enable support on the support 67.

By the truss elements 1.3 to 1.7 is a modular structure of the structure 2 in the form of structural modules (segments) 68.1 to 68.5 possible. As a result, a modular delivery of the structure 2 is possible. The assembly can in this case be carried out in an advantageous manner, as given about the individual truss elements 1.1 to 1.7 with each other, the relative geometric orientations in space or predetermined. In particular, a deviation from the orientation of the extensions is provided to the truss elements 1.3, 1.4 in that different angles are also set by 90 °. In the framework element 1.3 form extensions 3A, 3B, which are arranged on the longitudinal side 62 of the structure 2, an obtuse angle.

At the in FIG. 7 illustrated embodiment results between the two supports 65, 67 a height difference in the building or the like, so that here is a training of the structure 2 for an escalator 100. At a lower or vanishing height difference, a design of the structure 2 for a moving walkway 100 is possible.

Further, it should be understood that the reference system used in the description for explanation with the axes X, Y, Z is not necessarily aligned so that the height direction Z is parallel to gravity. This can be seen from the reference systems that are in the vicinity and for the truss elements 1.1, 1.2. and 1.5 exemplarily in the FIG. 7 are drawn.

The Figures 8A-8E show the in FIG. 7 listed truss elements 1.3, 1.4, 1.5 and 1.6 in a larger view. From these figures it is apparent that these truss elements are designed in one piece in the generic manner, as in the FIGS. 1 to 7 illustrated and previously described truss elements 1.1 and 1.2.

The invention is not limited to the described embodiments. The invention can be applied equally to escalators and moving walks.

Claims (16)

Truss element (1) of a structure (2) of an escalator (100) or of a moving walkway (100), which truss element has a one-piece design, wherein at least three extensions (3, 4, 5, 6) are provided, which lie in all three spatial dimensions , wherein at least one provided for a longitudinal direction (Y) of the structure (2) extension (4) and provided for a height direction (Z) of the structure (2) extension (5) connecting points (42, 43) are provided and wherein the connection points (42, 43) are designed so that a connection with other elements of the structure (2) is made possible. Truss element according to claim 1, wherein three of the at least three extensions (3, 4, 5, 6) are each oriented at a right angle to each other and by the right angles to each other oriented extensions (3, 4, 5, 6), a reference system (X , Y, Z) is present. Truss element according to claim 1 or 2, wherein the one-piece design forms a support node (1) on which at least one support point (63, 66) is formed, at which bearing point (63, 66) in an installation of the escalator (100) or the moving walk (100) in an installation space (64) of a building a support of the structure (2) is made possible on the building. Truss element according to claim 1 or 2, wherein the one-piece configuration forms a connection node (1), wherein the connection node (1) is designed so that it can be arranged within the supporting structure (2) to connect elements of the structure (2) or wherein the connection node (1) is designed such that it can be arranged between at least two segments (68.1-68.5) of the supporting structure (2) in order to install the escalator (100) or the moving walkway (100) in an installation space ( 64), alone or together with at least one further connection node, to establish a connection of the segments (68.1-68.5) of the structure (2). Truss element according to one of claims 3 or 4, wherein provided at an extension (3) provided for a width direction (X) is a connection point (41) is that is designed so that a connection with other elements of the structure (2) is possible. Truss element according to claim 5, wherein said width (X) provided extension (3) has an L-shaped profile and the connection point (41) is configured such that via a connection angle (37) connects to a further support node or connection node ( 1 ') of the supporting structure (2), and / or that the extension (3) provided for the width direction (X) has a flat end face (52), so that a flush abutment against the further element or the further support node or connecting node (1 ') of the structure (2) is made possible. Truss element according to claim 1 or 2, wherein the one-piece embodiment forms a support angle (1), which includes two support nodes or connection nodes (1A, 1B) forms. Truss element according to claim 7, wherein the bearing angle (1) has two for the longitudinal direction (Y) provided extensions (4, 4 ') which are arranged parallel to and on the opposite longitudinal sides (61, 62) for the supporting structure (2), and / or that the support angle (1.2) for the height direction (Z) provided extensions (5), which are arranged in parallel and on the opposite longitudinal sides (61, 62) for the supporting structure (2). Truss element according to claim 7 or 8, wherein the bearing angle (1) has a single width direction (X) provided extension (3, 3 '), which is integrated in both support nodes (1A, 1B). Truss element according to claim 9, wherein the extension (3, 3 ') provided for the width direction (X) between the two support nodes (1A, 1B) has a tapered connecting web (59). Truss element according to one of claims 1 to 10, wherein at least one support node or connection node (1) of the one-piece design as a cross-strut (6) between the for the longitudinal direction (Y) provided extension (4) and provided for the height direction (Z) extension (5) formed extension (6) is provided at which a connection point (7) is designed so that a connection with the other elements of the structure (2 ) is possible. Truss element according to one of claims 1 to 11, wherein the one-piece embodiment has at least one support node or connection node (1) at least one of the following configurations: An angle stiffener (20) between the extension (4) provided for the longitudinal direction (X) and the extension (5) provided for the height direction (Z); An angle reinforcement (21) between the extension (3) provided for the width direction (X) and the extension (5) provided for the height direction (Z); An angle stiffener (9) between the extension (4) provided for the longitudinal direction (Y) and the extension (3) intended for the width direction (X); • a control cabinet hook (10); • a suspension eye (13, 14); • a lubrication pump bracket; • a stiffening rib; • a stiffening rib formed as a step; • an angle bracing (9). Truss element according to claim 12, wherein at least one angle stiffener (20, 21) as an angular filling (20, 21) with or without recess (22 - 24) is configured, or that at least one angle stiffener (9) is designed as a rod-shaped angle stiffener (9). Truss element according to one of claims 1 to 13 wherein the one-piece design is realized as a casting or forging and / or that the one-piece design is realized in such a way to hold itself together without additional cohesive connections, in particular without welds. Support structure (2) or structural module (68.1-68.5) for an escalator (100) or a moving walkway (100) with at least one truss element (1) according to one of claims 1 to 14. Escalator (100) or moving walk (100) with at least one supporting structure (2) according to claim 15.

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