This application is a 371 of International Application PCT/EP2013/069367 filed 18 Sep. 2013 which claims priority from EP Patent Application Number 12186427.6 filed 27 Sep. 2012, the content of which is incorporated herein by reference.
The invention relates to a track module, an escalator with a step belt or a moving walkway with a plate belt, an assembly method, and a modernisation method for escalators and moving walkways. The escalator or moving walkway has in the length direction thereof balustrades arranged laterally of the step belt or plate belt as well as a first deflecting region and a second deflecting region. The plate belt or the step belt is arranged between the first deflecting region and the second deflecting region to circulate. In addition, the escalator or moving walkway includes at least one guide rail, which is arranged between the deflecting regions, for guidance of the step belt or plate belt.
Escalators and moving walkways of the aforesaid kind have a support frame, for example a framework, at and in which the stationary components such as guide rails, bearing blocks and the balustrades, as well as the moving components such as the step belt or plate belt, the deflecting axle and parts of the drive, are arranged.
By way of example, disclosed in EP 2 050 708 A2 is a moving walkway having a support frame including two longitudinal profile members extending in length direction of the moving walkway. The longitudinal profile members are connected together by means of cross struts and form a self-supporting, stable frame. Guide tracks for guidance of the step belt are formed in the longitudinal profile members. In addition, fastening regions for feet and for balustrade supports are provided at the longitudinal profile members. This frame can also be subdivided into several sections or frame modules which can be joined together at the ends.
The construction disclosed in EP 2 050 708 A2 has the disadvantages that these longitudinal profile members have to be constructed to be very stiff in bending and torsion, since transverse forces acting on the balustrade and oriented orthogonally to the running direction of the moving walkway have to be supported by the vertical sections of the longitudinal profile member cross-section. Such transverse forces are caused by, for example, users who are leaning, by blows to the balustrade and the like, and due to the usual constructional height of the balustrade act as high bending moments or bending forces on the longitudinal profile members. The necessary stiffness in bending and torsion has the consequence that these longitudinal profile members have a high weight per meter, a large profile member cross-section and a large profile member wall thickness and as a result handling is made very difficult. Moreover, such profile members are very expensive in production and processing and require expensive production means such as press tools, press dies, assembly templates and chucking tools.
The object of the present invention is therefore to create an escalator or a moving walkway, which has between the deflecting regions a structure with guide rails, which can be easily produced and is economic.
This object is fulfilled by a track module of an escalator or a moving walkway which comprises at least two support structures and at least one guide rail. Each support structure includes at least two supports and at least one cross strut. The cross strut is arranged between the at least two supports and connects these together. Each support has, at the lower end thereof referred to its position of installation, a foot fastening region which in the installed state is fastened to a carrying structure. Each support further includes, at the upper end referred to its position of installation, a balustrade fastening region to which in the installed state at least a part of a balustrade is fastened. Since the support is provided with a balustrade fastening region and a foot fastening region the static and dynamic loads acting on the balustrade can be transmitted directly to the carrying structure by way of the supports. In addition, at least one rail fastening region for fastening of the at least one guide rail is formed at each support structure, wherein the at least one guide rail is arranged orthogonally to the cross struts of the support structures and is fastened to the rail fastening regions of the support structures.
The track module can, during assembly, be fastened to the carrying structure separately from the deflecting regions. As a result, installation of the escalator or the moving walkway is substantially simplified. In installed state, one or more track modules is or are arranged between deflecting regions of the escalator or moving walkway. The deflecting regions are, moreover, connected together by the track modules. Since the guide rail, like the balustrade, is fastened to the support structure the position thereof relative to one another is very precise already from the factory, whereby the adjustment effort for assembly of the escalator or the moving walkway at the place of installation is minimised.
As already mentioned, the support supports static and dynamic loads such as, for example, transverse forces and bending moments, which act on the balustrade, by way of the foot fastening region directly on the carrying structure, which, for example, can be a steel girder, a concrete foundation, a sufficiently stable floor and the like. The guide rails are fastened only to the rail fastening regions of the support structures and are thereby excluded from these transverse forces and bending moments. Correspondingly, the guide rails can be primarily designed for the loads attributable to the step belt or plate belt, which gives a simpler construction and light track modules.
The invention exploits, through conducting static and dynamic loads away via the supports, the inherent stability of the surroundings which are created by, for example, a foundation at the place of installation, a stairway of a building or by additional measures at the building such as, for example, the installation of girders, ramps and the like. Dispensing with an intrinsically stable support frame or framework signifies a clear departure from current teaching that an escalator or a moving walkway has to have an inherently stable load-bearing structure. Through dispensing with a self-supporting, inherently stable support frame a moving walkway or an escalator with the afore-described track modules has a number of advantages.
Transverse forces of the balustrade are supported directly by the carrying structure erected at the building and not by the guide rails. As a result, the guide tracks thereof are not elastically deformed by the transverse forces and straight running of the plate belt or step belt is not impaired by transverse forces.
The support frame or framework, which is known from the prior art, of an escalator or a moving walkway often has, due to the required inherent stability, large dimensions and thereby substantially determines the appearance of the building or the interior space. By virtue of the afore-described concept an architect can have complete design freedom for the carrying structure. This certainly has to satisfy, over the span width of the moving walkway or the escalator, the prescribed loading requirements which the manufacturer prescribes, referred to the length of the moving walkway or the escalator, for the individual foot fastening regions, but he can otherwise freely select the appearance of the carrying structure and the arrangement thereof in the building. It is even possible, with curved guide rails having a curvature directed in vertical direction in the installed state, to produce a curved escalator or a curved moving walkway without problems. Even guidance of the step belt or plate belt in wave form in the running direction is possible. Thanks to the division in two track modules these can in addition be brought in the simplest way into an existing building and mounted at the intended place of installation.
Thrust forces acting on the escalator or the moving walkway in direction of the length can be transmitted by a suitable design of the support and the foot fastening region thereof to the carrying structure and supported or dissipated. The guide rails additionally serve in the length direction as struts between the support structures so that the thrust forces are distributed to several supports or foot regions. The thrust forces arising in the length direction of the escalator or the moving walkway barely load the guide rails and therefore do not have any effect on the dimensioning of the guide rails. The dimensioning of the guide rails is based only on the maximum occurring conveying load or passenger load required to be supported.
A particularly simple and economic design of the guide rail can be achieved if this is formed to be C-shaped in cross-section with respect to its length direction and has two guide tracks for the guide rollers or chain rollers of a step belt or plate belt. For preference, each of the two guide tracks is arranged on a respective one of the two parallel limbs of the C-shaped profile of the guide rail so that the two guide tracks are arranged in planes disposed one above the other when the guide rail is installed in the operationally ready escalator.
In addition, this guide rail can have at least one passage for the passing-through of the cross strut of a support structure. This makes possible a particularly compact construction of the escalator or the moving walkway, since the cross strut is then arranged between the forward run and the return run of the step belt or plate belt.
The rail fastening region for fastening of a guide rail can be formed at the support. This is preferably matched to the fastening means and the guide rail and has, for example, a defined hole pattern or defined mounts/or recesses. In order to facilitate mounting of the guide rail or guide track or guide rail, lugs serving for suspension of the guide rail can also be formed at the support in the rail fastening region. The suspended guide rails can then be fixed connected with the support by means of fastening elements such as screws, clamping claws, clamping wedges, clamping pins, spring clips and the like. Non-releasable connecting techniques can obviously also be used such as, for example, riveting, welding, gluing, clinching and the like.
The rail fastening region can obviously also be constructed for fastening a guide rail to the cross strut, wherein the afore-mentioned connecting techniques and joining techniques are equally usable for fastening of the guide rail to the cross strut.
In addition, at least one base fastening region for fastening of a base plate can be formed at the support. The base plate is preferably adjustable relative to the support so that compensation for production tolerances can be provided and a gap, which corresponds with legal requirements, between the step belt and the base plate can be set.
The support can also have at least one handrail-guide fastening region for the fastening of a handrail guide. This handrail guide can be a guide rail, one or more guide rollers, handrail mounts and the like.
The foot fastening region preferably includes a height adjusting device or height setting device which makes it possible to adjust the support in vertical direction. Compensation for non-planarities of the carrying structure over the length of the escalator or the moving walkway can thereby be provided in simple manner without needing to use additional material such as spacer plates, spacer sleeves, washers, wedges and the like.
An escalator usually comprises a step belt, balustrades arranged laterally of the step belt in the length direction of the escalator, as well as a first deflecting region and a second deflecting region, wherein the step belt is arranged between the first deflecting region and the second deflecting region to circulate. According to the invention the escalator comprises at least one track module, as described in more detail further above, arranged between the deflecting regions. The deflecting regions are connected together by a track module or several track modules joined together and the at least one guide rail of the at least one track module serves for guidance of the step belt between the two deflecting regions.
Analogously, a moving walkway comprises a plate belt, balustrades arranged laterally of the plate belt in the length direction of the moving walkway, as well as a first deflecting region and a second deflecting region, wherein the plate belt is arranged between the first deflecting region and second deflecting region to circulate. The moving walkway additionally comprises at least one track module, as described in more detail further above, arranged between the deflecting regions. The deflecting regions are connected together by a track module or by several track modules joined together and the at least one guide rail of the at least one track module serves for guidance of the plate belt between the two deflecting regions.
Regardless of whether it is an escalator or a moving walkway, the first deflecting region, the second deflecting region and at least one foot region of at least one track module arranged between the two deflecting regions can be fastened to the associated mounts. These mounts are arranged in distribution over the length of a carrying structure erected at the building. They can be set up during assembly of the escalator or the moving walkway, for example, by the mounting of bonding anchors in a concrete foundation serving as a carrying structure. The mounts can obviously already be arranged at the carrying structure, at the time of creating the carrying structure on the basis of a mounting plan or by means of provided templates.
In summary, it can be established that the afore-described escalator with a step belt or the moving walkway with a plate belt has a special construction, since an inherently stable support frame is dispensed with. A characteristic feature of the new construction is, in particular, that the first deflecting region, the second deflecting region and at least one foot region of at least one track module arranged between the two deflecting regions are fastened to the associated mounts of the carrying structure.
The assembly of an escalator or a moving walkway of the aforesaid kind also differs significantly from the known assembly concepts. This new assembly method comprises the steps in which
Although at least one track module is mentioned in the aforesaid assembly method this does not exclude the track module from also being able to be delivered, broken down into several individual parts such as support structures and guide rail sections, to the building site. A track module can be created from these individual parts for the first time by introducing the same between the deflecting regions of the escalator or the moving walkway. However, the track module can also be assembled from the individual parts prior to installation between the deflecting regions. The aforesaid assembly method can therefore be supplemented by the further step in which prior to fastening to the carrying structure at least one track module is formed by joining together at least two support structures and at least one guide rail and this track module is connected with the carrying structure instead of the individual parts such as travel tracks or guide tracks, supports or uprights and cross struts or cross girders.
The escalator or the moving walkway of the aforesaid kind is also particularly suitable for modernisation of an existing escalator or an existing moving walkway. Such a modernisation method comprises the steps in which
The escalator or the moving walkway with a light and economic structure, which is arranged between the deflecting regions, with guide rails is explained in more detail in the following on the basis of examples and with reference to the drawings, in which:
Mounts 12, on which the parts of the escalator 10 are mounted, are to be provided or subsequently mounted on this carrying structure 11 to be erected at the building. For the sake of better clarity only three mounts 12 are provided with reference numerals, although in the present example a mount 12 is present for each support structure. The mounts 12 can be simple mounting plates which, for example, are directly connected with the reinforcement of the carrying structure. Other suitable mounts 12 such as concrete anchors, screw holes, threaded rods, weld plates and the like are obviously also usable.
The escalator 10 comprises a first deflecting region 13 and a second deflecting region 14 as well as balustrades 17 arranged between the deflecting regions 13, 14, a circulating step belt and track modules 15, which have guide rails 16. For the sake of clarity only one track module 15 is provided with a reference numeral. The step belt 18 is deflected in the upper plane E2 and in the lower plane E1 and thus has a step belt forward run 19 and a step belt return run 20. For the sake of better clarity detailed illustration of the step belt 18 was dispensed with.
It is clearly apparent from
The guide rails 56 which are illustrated in
The terms “bottom” and “top” define the position of the fastening regions at the support 66A, 66B in the installed state and refer to the direction of gravitational force. Each support 66A, 66B has a functionally identical construction. A foot fastening region 68 is formed at the support 66A, 66B at the bottom end. This comprises a height adjusting device 69 so as to provide compensation for non-planarities or differences in level of the carrying structure (not illustrated). Above the foot fastening region 68 the support 66A, 66B has a rail fastening region 71. This rail fastening region 71 is subdivided into a top rail fastening point 72 and a bottom rail fastening point 73, since the cross strut 67 is fastened to the support 66A, 66B between these rail fastening points 72, 73. Detailed explanations with respect to the rail fastening points 72, 73 can be found further below in the description with respect to
In order that the plate belt 58 can freely move in the running direction, the supports 66A, 66B have to be arranged on the side of the guide rails 56A, 56B remote from the plate belt 58. In order to make this possible the guide rails 56A, 56B or the illustrated guide rail sections have, for each cross strut 67, a passage 75, which is covered by the support and through which the associated cross strut 67 extends and is fastened to the support 66A, 66B. The guide rail 56A, 56B is formed to be C-shaped in cross-section with respect to its length direction and includes not only a top guide track 76 for the plate belt section of the forward run 59, but also a bottom guide track 77 for the plate section of the return run 60. Lateral guide strips 78 are arranged at the edge of the guide tracks 76, 77 for lateral guidance of the plate belt 58.
A handrail-guide fastening region 80, to which guide parts such as the illustrated handrail guide rollers 81 can be fastened, is formed at the support 66A, 66B above the rail fastening region 71. Handrail guide rails can obviously also be mounted on these handrail-guide fastening regions 80. In addition, the support 66A, 66B has a base fastening region 82, to which a base plate (not illustrated) can be fastened directly or, as illustrated, by means of a base plate girder 83.
Formed at the top end of the support 66A, 66B is a balustrade fastening region 85 at which a clamping device 86 is arranged, in which clamping device 86, as illustrated in
The moving walkway 50 of
In order to increase the stability of shape of the guide tracks 76, 77 the guide rails 56A, 56B have, at both guide tracks 76, 77, downwardly directed bent portions 91, 92. The bent portion 91 of the top guide track 76 is additionally supported by its end on the cross strut 67, since the guide track 76 of the plate belt forward run 59 has to support substantially higher conveying or weight loads, which are caused by the users of the moving walkway 50, than the guide track 77 of the plate belt return run 60.
The base fastening region 82, which is described in connection with
Although the invention has been described in detail on the basis of a track module of a moving walkway it will be obvious that a track module of an escalator can also be constructed in the same manner. In addition, numerous further variants can be created with knowledge of the present invention, for example through the modernisation of existing escalators or moving walkways, by the escalator according to the invention or the moving walkway according to the invention by virtue of the possibility of combination with carrying structures of any design.
Number | Date | Country | Kind |
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12186427 | Sep 2012 | EP | regional |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2013/069367 | 9/18/2013 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2014/048809 | 4/3/2014 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
6296111 | Mekanik | Oct 2001 | B1 |
6644210 | Pfleger et al. | Nov 2003 | B1 |
20070029161 | Streibig | Feb 2007 | A1 |
Number | Date | Country |
---|---|---|
1907834 | Feb 2007 | CN |
2 050 708 | Jul 2008 | EP |
2 050 708 | Apr 2009 | EP |
49 012579 | Feb 1974 | JP |
58 151177 | Oct 1983 | JP |
2009 184771 | Aug 2009 | JP |
672135 | Jul 1979 | SU |
543650 | Jul 2003 | TW |
1369333 | Aug 2012 | TW |
1370099 | Aug 2012 | TW |
WO 201448809 | Apr 2014 | WO |
Entry |
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English_Abstract_of_JP2009184771A. |
Number | Date | Country | |
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20150239711 A1 | Aug 2015 | US |