WO2001011144A1

WO2001011144A1 - Roller rail for units moving along facades

Info

Publication number: WO2001011144A1
Application number: PCT/EP2000/007407
Authority: WO
Inventors: Wilfried Knaak
Original assignee: Mobitech Gmbh
Priority date: 1999-08-04
Filing date: 2000-07-31
Publication date: 2001-02-15
Also published as: AU6278600A; DE19936217A1

Abstract

The invention concerns a roller rail for units moving along façades. Said rail comprises at least a head (1), a web (2), a base (3) and at least a running surface (4) provided on the head (1) surfaces oriented towards the web (2). The invention aims at enabling said roller rail to be fixed laterally. To achieve this, the base (3) comprises fixing means (4) to enable it to be suspended, and the web (2) comprises fixing means (6) for being laterally fixed.

Description

Track for facade driving equipment

The invention relates to a running rail for facade driving devices with at least one rail head, a rail web, a rail foot and at least one running surface, at least one running surface being provided on the surfaces of the rail head facing the rail web.

Such rails for facade driving devices are known from the prior art in a variety of configurations. As a rule, electrically driven undercarriages move on these tracks, to which cages of facade driving devices are attached. As is generally known, facade drive systems are generally used for facade cleaning and facade inspection in larger commercial buildings. The outer skin of these commercial buildings, on which the facade driving equipment is installed, is covered by the fact that the car can be moved on the one hand via the movement of the running gear on the running rail in a horizontal direction parallel to the building's outer skin and on the other hand via a winch acting between the running gear and the car in the vertical direction can be moved parallel to the outer skin.

Since the running gear hangs on the running rail, the running surfaces of the running rail are not arranged on the surface of the rail head facing away from the rail web, as in the case of rail vehicles traveling at ground level, but instead provided on the surfaces of the rail head facing the rail web.

In the known running rails, the rail base regularly has fastening means for hanging fastening, for example on a cross member. The rail base is thus arranged above the rail head in the case of a running rail attached, for example, to a cross member.

In modern office buildings, it is increasingly important that the technical installations, including the facade drive systems, fit in harmoniously with the overall picture. In the course of this development, in addition to the running rails connected to their rail base, for example with a cross member, running rails are also increasingly being used which have fastening means for lateral fastening on their rail web. With these fasteners, the running track is connected to the building body with fastening swords projecting laterally from the facade or over the facade. This results in an appealing visual appearance with perfect functionality.

From the prior art, only running rails are known which are either suitable for fastening via their rail foot to, for example, the underside of a cross member or have fastening means for lateral fastening on their rail web, in the latter case a rail foot in the actual sense is missing. This is problematic in terms of optimizing the production and storage of the known running rails. On the basis of the prior art described above, a first teaching of the invention is based on the object of providing a running rail for facade driving devices which is equally suitable for hanging attachment as well as for lateral attachment

According to the first teaching of the invention, the previously derived and indicated object is achieved in that the rail foot has fastening means for hanging fastening and the rail web has fastening means for lateral fastening. According to this first teaching, one and the same track can be attached both hanging and laterally. The fact that both fastening options are available means that there is no need to manufacture and store different types of running rails depending on the application.

The fact that, according to a first embodiment, with a lateral fastening of the part of the running rail which forms the rail foot in the case of a hanging fastening, forms the rail head, it is ensured that the structural features necessary for the hanging fastening of the part of the running rail forming the rail foot are exposed to weather influences to a significantly lesser extent is.

The measure just described is further supplemented by the fact that the rail head, which is not used in the case of lateral fastening, has a closed cross section which is essentially round on the side facing away from the running surface. This ensures that, for example, when it rains or snows on the upper side of the side attachment Precipitation can drip off or slide down directly on the rail. This is desirable in order to ensure that rainwater or melt water does not drip from the running rail for a longer period of time after a period of precipitation, as would be the case, for example, if the part of the running rail which formed the rail base in the case of a hanging fastening were attached at the top when it was fastened laterally was installed.

With regard to optimal force absorption, the running rail according to the invention is further developed in that in the area of the fastening means for lateral fastening, a support shoulder is designed for the positive reception of at least some of the support forces. This form-fitting receptacle lowers the static requirements for the fastening means for lateral fastening, which essentially absorb the support forces by means of a force fit. This is particularly advantageous with regard to a reproducible and permanent guarantee of the static requirements.

To simplify warehousing, rails are generally only manufactured in specified lengths. As a result, there is a need to bridge longer lengths over several interconnected track sections. In the case of the running rails known from the prior art, the connections required for this purpose are produced by means of connecting swords screwed to the rail webs. This is problematic both in terms of making the connection as simple as possible and the need for permanent alignment of the connected track sections. Starting from the prior art described above, the object of a second teaching of the invention is to provide a running rail for facade guiding devices which enables a simple connection between two running rail sections which ensures permanent alignment.

According to the second teaching of the invention, the previously derived and shown object is achieved in that the cross sections of the rail head and / or the rail foot have receptacles for connecting profiles.

An optimal alignment of the running rail sections with one another both in the horizontal and in the vertical direction is ensured by the fact that the receptacles for the connecting profiles in the rail head and in the rail base have essentially perpendicular directions of preference. As a result, identical connection profiles for the rail head and the rail foot can be used for optimal alignment in both directions.

The assembly of the connecting profiles is simplified in that a stop is provided in the central region of a connecting profile in the longitudinal direction. By this stop is avoided without a separate attachment of the connecting profile in a track section that a

Connection profile slips into a track section when establishing the connection and in this case no longer fulfills the intended purpose. If, according to a further embodiment, the stop is provided off-center in the longitudinal direction, the same connecting profiles can be used for the rail head and the rail foot, which alternate with the short and the long end are inserted into the rail head and the rail foot. As a result, the ends that are not inserted in each case protrude to different extents from a first track section, into which the connection profiles are inserted before the connection is made, before the connection is made. This simplifies the alignment and insertion of a second running rail section, since the alignment with the connection profile with the protruding end takes place first and only then the alignment with the connection profile with the end that protrudes less far is necessary. The rail head and rail foot are thus aligned with one another. In contrast, a simultaneous alignment of the rail head and rail foot is much more difficult with the often relatively long track sections.

To ensure that different

Track sections are immovably connected to each other in the longitudinal direction, the connecting profiles can be connected to the running track by fastening means in a running track according to the invention. About such a one-sided before producing the

Connection made overall connection can also alternatively to the arrangement of a stop on the

Connection profile slipping one

Connection profiles in a track section before, during or after the connection of two

Track sections are prevented.

In the known running tracks, which are largely formed by conventional double-T supports, the undercarriages of the facade driving devices often do not run properly on the running tracks. The trolleys do not run parallel to the running rail alignment, which results in increased driving noise caused by friction between the running gear and the running rail.

Proceeding from the prior art described above, the object of a third teaching of the invention is to provide a running rail for facade driving devices which enables a faultless, low-noise running of the running gear of facade driving devices on the running rail.

According to the third teaching of the invention, the previously derived and shown object is achieved in that the running surfaces in the assembled state form an angle greater than 90 ° with the vertical, in particular an angle of

Include 95 ° to 110 °. This inclination of the running surfaces causes the running gear to self-center on the running rail, which ensures that the running gear runs essentially parallel to the running rail alignment.

Alternatively or cumulatively to the third teaching of the invention, the above-described object is achieved according to a fourth teaching of the invention in that a centering track is provided in the transition area between the running surface and the rail web with a significantly higher inclination than an inclination of the running surface. This centering track prevents contact between the running gear and the running rail in that the running gear is deflected onto the centering track if the running track approaches too closely. On the one hand, this increases the functional reliability of the running gear on the running rail and, on the other hand, reduces running noise. If the centering track closes an angle of 120 ° to 160 ° with the vertical when installed, the function just described is particularly reliably ensured.

Another problem with the known running rails is that they can only be imperfectly adapted to non-linear profiles of facades. However, the running tracks for facade driving equipment should, if possible, be able to follow building ceilings, curves and high jumps. The bends required for this about axes perpendicular or parallel to the rail web can only be produced with the known double-T girders under large mills or not at all.

On the basis of the prior art described above, a fifth teaching of the invention is based on the object of providing a running rail for facade driving devices which ensures the simple production of bends around any axes.

According to the fifth teaching of the invention, the previously derived and demonstrated object is achieved in that the sum of the material thickness on the cross sections is as small as possible on all cross sections through the running rail running perpendicular to the rail and / or on all cross sections running parallel to the running through the running rail Has variation. This "mass symmetry" ensures simple flexibility with reduced material loads, even with complex running rail profiles.

The known tracks are made predominantly of steel. Because of this choice of materials, only Produce limited complex track profiles. The necessary processing effort does not make it seem sensible to exceed a certain complexity.

Starting from the prior art described above, a sixth teaching of the invention is based on the object of making available a running rail for facade driving devices which allows simple production of even complex running rail profiles.

According to the sixth teaching of the invention, the previously derived and shown object is achieved in that the running rail consists of an aluminum material and is produced by extrusion.

With regard to the material and the production method for a running rail, it has proven to be optimal from an optical and manufacturing point of view that the running rail consists of an aluminum material and is produced by extrusion. The weather resistance of a running rail made of an aluminum material can be ensured relatively easily and the production of the running rail by extrusion opens up relatively easily the possibility of optimally producing the profiles required for fastening and connection. The strength of aluminum for running tracks for facade driving equipment is also sufficient. AlMgSi 0.5 or 1, for example, are used as alloys for producing the running rails according to the invention.

According to a seventh teaching of the invention, fastening bolts for fastening a running rail for facade driving devices with a screw bolt and one to the fastening means of the running rail 01/11144

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adapted gliding stem, improved in that the bolt section of a countersunk screw forms the bolt and a gliding stem element cooperating with the countersunk head of the countersunk screw forms the gliding stem. This teaching ensures the simple production of the required fastening bolts using standardized countersunk screws, which means that an otherwise necessary technical test can be omitted.

Are the countersunk head and that sliding stem element connected to each other by welding spots, rotation of the countersunk screw in the sliding stem element is prevented, which simplifies the fastening of the fastening bolt in the case of sliding elements adapted to the fastening means, which prevent rotation of the sliding stem in the fastening means.

There are now a multitude of options for designing and developing the running track according to the invention for facade driving devices. For this purpose, reference is made, for example, on the one hand to the claims subordinate to claims 1, 5, 10, 12, 14 and 16, and on the other hand to the description of exemplary embodiments in conjunction with the drawing. In the drawing shows

1 shows a cross section through an exemplary embodiment of a running rail according to the invention for facade driving devices,

2 shows an exemplary embodiment of a Vebmdungsproflls according to a second teaching of the invention and Fig. 3 shows an embodiment of a fastening bolt for fastening a running rail according to the seventh teaching of the invention in a perspective view, partially cut.

The exemplary embodiment shown in FIG. 1 of a running rail for facade equipment according to the invention has a rail head 1, a rail web 2, a rail foot 3 and four running surfaces 4. Due to the fact that on rails for

Facade travel devices not shown bogies carry a hanging car, also not shown, the treads 4 are provided on the surfaces of the rail head 1 facing the rail web 2. Since the rail foot 3 also serves as a rail head when the running rail is laterally attached, the running surfaces 4 are also provided on the rail foot 3 on the surfaces of the rail foot 3 facing the rail web.

As is known from the prior art, the rail base 3 has fastening means 5 for the hanging fastening of the running rail. In the illustrated embodiment, these fastening means 5 are designed as a recess provided in the rail foot 3, into which, for example, the head of a fastening bolt, not shown, is introduced.

According to the invention, not only the rail foot 3 has fastening means 5 for hanging fastening, but also the rail web 2 fastening means 6 for lateral fastening. The side fasteners 6 are formed as an inwardly widening groove, so that this too Sliding block element of a fastening bolt, not shown here, can be inserted.

When the running rail according to the invention is laterally fastened to a fastening sword, not shown, projecting from or over a facade surface, this fastening sword is advantageously adapted to the profile of the running rail according to the invention in such a way that its upper side rests on a support shoulder 7. As a result, at least some of the support forces are received in a form-fitting manner, so that the frictional connection via the fastening means 6 for lateral fastening has to meet less stringent requirements.

The exemplary embodiment shown in Fig.l is shown in an orientation as it is given in the lateral attachment. It is readily apparent that with this alignment of the running rail according to the invention, the rail foot 3 actually forms the part which carries the running gear (not shown), that is to say the rail head. The rail head 1 is in this orientation with no function with regard to the management of a chassis, not shown. Due to the closed cross-section of the rail head 1, which is essentially round on the side facing away from the running surfaces 4, it is advantageously ensured that no precipitation can collect on the rail head 1, which on the one hand leads to increased corrosion and, on the other hand, to undesired dripping of precipitation residues Termination of the rainfall.

In the illustrated exemplary embodiment of a running rail according to the invention, the cross section of the

Rail head 1 and the cross section of the rail foot 3 designed so that a receptacle for connecting profiles 8 for connecting two track sections arise. In Fig. 1 it is further shown that the receptacles for the connecting profiles 8 in the rail head 1 and in the rail foot 3 have substantially perpendicular directions of preference, which ensures optimal alignment both vertically and horizontally. It can also be seen that the receptacles for the connecting profiles 8 are designed such that the connecting profiles 8 can have the same shape and can alternatively be inserted either into the receptacle in the rail head 1 or into the receptacle in the rail foot 3. This simplifies storage for the connection profiles 8.

Whether an immovable connection in the longitudinal direction of the running rail between different running rail sections is desired depends on the respective application. In part, due to the inclusion of temperature-related changes in length of the running rails according to the invention, it is advantageous to provide certain latitude in the longitudinal direction. In other cases, however, it is necessary to make immovable connections between different track sections in the longitudinal direction. For this purpose, the connecting profiles, not shown in the drawing, can be connected to the running rail by fastening means, for example shooting bolts.

The exemplary embodiment shown in FIG. 1 has a relatively complicated cross section, which can be produced particularly simply and precisely by extruding an aluminum material. The exemplary embodiment shown in FIG. 1 of a running rail according to the invention in the transition area between the running surfaces 4 and the rail web 2 each has a centering track 9 with a significantly higher inclination than the inclination of the running surfaces 4. In the exemplary embodiment shown, the inclination of the running surfaces 4 is approximately 10 °, while the inclination of the centering tracks 9 is approximately 45 °. This centering track is used to guide the chassis, not shown. In particular, this prevents the wheels of the undercarriage, which are also not shown, from coming into contact with the rail web 2, which can lead to canting and the operating noise has been increased.

It can easily be seen in the drawing that in the illustrated exemplary embodiment of a running rail according to the invention, the distance between the running surfaces 4 and the contact surface for a drive wheel of a running gear, not shown, must be different for the rail head 1 and the rail foot 3. This different distance can, however, be changed relatively easily in the case of a running gear adapted to the running rail according to the invention in that the distance between the guide rollers running on the running surfaces 4 and the drive wheel is adjustable.

The projections 10 in the rail head 1 serve to produce the mass symmetry on all cross sections running perpendicular to the rail through the running rail and on all cross sections running parallel to the rail running through the running rail.

The connecting profile 8 shown in FIG. 2 has a stop 11 which, when the connecting profile 8 is inserted into the rail head 1 or the Rail foot 3 limits the insertion depth. The stop 11 is arranged approximately 5 eccentrically in the central region of the connecting profile, so that different insertion depths, depending on the direction of insertion, can be defined. The stop 11 can be produced, for example, by a notch pin. The connecting profile 8, like the running rail, is preferably made of aluminum.

In Fig. 3 an embodiment of a fastening bolt according to the seventh teaching of the invention is shown. According to this teaching of the invention, the bolt section 12 of a countersunk screw forms the screw bolt of the fastening bolt and a sliding block element 14 which interacts with the countersunk head 13 of the countersunk screw forms the sliding block of the fastening bolt. The countersunk head 13 and the sliding block element 14 are connected by two welding points 15.

Claims

Claims:

1. Running track for facade driving equipment with at least one rail head (1), a rail web

(2), a rail foot (3) and at least one running surface (4), at least one running surface (4) being provided on the surfaces of the rail head (1) facing the rail web (2), characterized in that the rail foot (3) fasteners (5) for hanging fastening and the rail web (2) has fastening means (6) for lateral fastening.

2. Running track according to claim 1, d a d u r c h g e k e n n z e i c h n e t that with a lateral attachment of the rail base (3) forming part of the running track forms the rail head with a hanging attachment.

3. Track according to one of claims 1 or 2, d a d u r c h g e k e n n z e i c h n e t that the rail head (1), which is unused during lateral attachment, has a closed cross-section which is essentially round in shape on the side facing away from the tread.

4. Running track according to one of claims 1 to 3, characterized in that in the region of the fastening means (6) for lateral fastening, a support shoulder (7) for positive locking Recording at least part of the supporting forces is formed.

5. Running track for facade driving equipment with at least one rail head (1), a rail web

(2), a rail foot (3) and at least one running surface (4), at least one running surface (4) being provided on the surfaces of the rail head (1) facing the rail web (2), in particular according to one of claims 1 to 4, characterized in that the cross sections of the rail head (1) and / or the rail foot (3) have receptacles for connecting profiles (8).

6. Track according to claim 5, d a d u r c h g e k e n n z e i c h n t that the receptacles for the connecting profiles (8) in the rail head (1) and in the rail base (3) have substantially perpendicular directions of preference.

7. Track according to claim 5 or 6, d a d u r c h g e k e n n z e i c h n e t that in the longitudinal central region of a connecting profile

(8) a stop (11) is provided.

8. Track according to claim 7, d a d u r c h g e k e n n z e i c h n e t that the stop in the longitudinal direction is provided off-center.

9. Running track according to one of claims 5 to 8, characterized in that the connecting profiles (8) can be connected to the running track by fastening means.

10. Running track for facade driving devices with at least one rail head (1), a rail web (2), a rail foot (3) and at least one running surface (4), at least one running surface (4) on the surfaces of the rail head facing the rail web (2) (1) is provided, in particular according to one of claims 1 to 9, characterized in that the running surfaces (4) enclose an angle greater than 90 ° with the vertical in the assembled state.

11. Track according to claim 10, d a d u r c h g e k e n n z e i c h n e t that the

When installed, the running surfaces (4) should form an angle of 95 ° to 110 ° with the vertical.

12. Track for facade driving equipment with at least one rail head (1), a rail web

(2), a rail foot (3) and at least one running surface (4), at least one running surface (4) being provided on the surfaces of the rail head (1) facing the rail web (2), in particular according to one of claims 1 to 11, characterized in that in the transition area between the running surface (4) and the rail web (2) a centering track (9) is provided with a significantly higher inclination than an inclination of the running surface (4).

13. Track according to claim 12, characterized in that the centering track (9) in the assembled state with the vertical forms an angle of 120 ° to 160 °.

14. Running rail for facade driving equipment with at least one rail head (1), a rail web

(2), a rail foot (3) and at least one running surface (4), at least one running surface (4) being provided on the surfaces of the rail head (1) facing the rail web (2), in particular according to one of claims 1 to 13, characterized in that on all cross sections running perpendicular to the rails through the running rail and / or on all cross sections running parallel to the rails through the running rail, the sum of the material thickness on the cross sections has as little variation as possible.

15. Running track for facade driving equipment with at least one rail head (1), a rail web

(2), a rail foot (3) and at least one running surface (4), at least one running surface (4) being provided on the surfaces of the rail head (1) facing the rail web (2), in particular according to one of claims 1 to 14, characterized in that the running rail consists of an aluminum material and is produced by extrusion.

16. Fastening bolt for fastening a running rail for facade driving devices with a screw bolt and a sliding block adapted to the fastening means of the running rail, characterized in that the screw bolt section (12 ') - a countersunk screw, the screw bolt and a sliding block element (14 ) forms the sliding block.

17. Fastening bolt according to claim 16, d a d u r c h g e k e n n z e i c h n e t that the countersunk head and that sliding block element are connected to each other by welding points (15).