EP0349476A2 - Mobile device - Google Patents

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Publication number
EP0349476A2
EP0349476A2 EP89730143A EP89730143A EP0349476A2 EP 0349476 A2 EP0349476 A2 EP 0349476A2 EP 89730143 A EP89730143 A EP 89730143A EP 89730143 A EP89730143 A EP 89730143A EP 0349476 A2 EP0349476 A2 EP 0349476A2
Authority
EP
European Patent Office
Prior art keywords
work platform
lift system
magnetic plate
cables
platform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89730143A
Other languages
German (de)
French (fr)
Other versions
EP0349476A3 (en
EP0349476B1 (en
Inventor
Gerhard Thiem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gesta Gesellschaft fur Stahlrohrgerueste Mbh
Original Assignee
Gesta Gesellschaft fur Stahlrohrgerueste Mbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gesta Gesellschaft fur Stahlrohrgerueste Mbh filed Critical Gesta Gesellschaft fur Stahlrohrgerueste Mbh
Priority to AT89730143T priority Critical patent/ATE81878T1/en
Publication of EP0349476A2 publication Critical patent/EP0349476A2/en
Publication of EP0349476A3 publication Critical patent/EP0349476A3/en
Application granted granted Critical
Publication of EP0349476B1 publication Critical patent/EP0349476B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables

Abstract

The invention relates to a vertically and horizontally movable work platform 4 for carrying out renovations to the concrete on reinforced concrete buildings or for replacing the structural protection on steel constructions. To increase the operational safety these work platforms 4 are held against the surfaces 1 of the buildings by attached magnetic plates 6. Since the tensions cables previously required are dispensed with, the weight of the upper carriage 2 from which the work platforms are suspended by cables is considerably reduced.

Description

Die Erfindung betrifft eine Befahranlage nach dem Oberbegriff des Anspruchs 1.The invention relates to an access system according to the preamble of claim 1.

Derartige Befahranlagen werden insbesondere an Bau­werken mit gleichbleibendem oder veränderlichem kreisförmigen Grundriß eingesetzt, beispielsweise an Schornsteinen, die als Kreiszylinder oder Kegel­stumpf, oder an Fernmeldetürmen, die als Rotations­paraboloid, oder Kühltürmen, die als Rotations­ hyperboloid gestaltet sind oder ähnlichen Bauwerken. Die Befahranlagen können beispielsweise zur Durch­führung von Betonsanierungen oder an Stahl­konstruktionen zur Erneuerung des Korrisionsschutzes eingesetzt werden.Such access systems are used in particular on buildings with a constant or variable circular floor plan, for example on chimneys, which act as circular cylinders or truncated cones, or on telecommunication towers, as paraboloid of revolution, or cooling towers, as rotation are designed hyperboloid or similar structures. The access systems can be used, for example, to carry out concrete renovations or on steel structures to renew the anti-corrosion protection.

Die bekannten Befahranlagen weisen eine Arbeitsbühne, insbesondere aus Leichtmetall auf, die mit Spezialwinden an Fahrseilen auf und ab bewegt werden kann. Am Oberrand des Bauwerkes ist ein Oberwagen vorgesehen, der eine Kreisfahrt ausführen kann. Die Arbeitsbühne ist mittels Fahr- und Führungsseilen am Oberwagen angehängt. Die bekannten Befahranlagen weisen ferner Spannseile auf, die verspannt werden und damit die Arbeitsbühne bei Windeinwirkung in ihrer Lage fixieren und gegen Pendeln sowohl radial als auch tangential sichern. Diese Spannseile sind am Fuß an Konsolen befestigt, die an Schienen verfahrbar sind.The known access systems have a working platform, in particular made of light metal, which can be moved up and down on special cables on driving ropes. At the top of the building there is an uppercarriage that can take a circular trip. The work platform is attached to the superstructure by means of travel and guide ropes. The known access systems also have tensioning ropes that are tensioned and thus fix the working platform in its position in the event of wind and secure it against oscillation both radially and tangentially. These tension cables are attached to brackets on the base that can be moved on rails.

Die für den sicheren Betrieb erforderliche Vorspann­kraft ist im wesentlichen von der Bauhöhe zwischen dem Oberwagen und den unteren Schienen abhängig. Erhöhte Vorspannkräfte sind beispielsweise bei Befahranlagen für die inneren Wandflächen von Kühl­türmen erforderlich. In diesem Fällen muß ein zu­sätzlicher Anpressdruck der Arbeitsbühne in den Be­reichen erzeugt werden, die gegenüber dem oberen Anhängepunkt nach außen versetzt liegen.The pretensioning force required for safe operation essentially depends on the height between the uppercarriage and the lower rails. Increased pretensioning forces are required, for example, for access systems for the inner wall surfaces of cooling towers. In this case, an additional contact pressure of the work platform must be generated in the areas that are offset to the outside from the upper attachment point.

Für Befahranlagen an den Außenflächen derartiger Bauwerke sind zusätzliche Hilfsanlagen erforderich, um die Arbeitsbühne an das Bauwerk anzudrücken.For auxiliary systems on the outer surfaces of such structures, additional auxiliary systems are required in order to press the work platform onto the structure.

Aus der DE-OS 20 14 102 ist eine derartige Arbeits­bühne bekannt, die Gebläse aufweist, mittels derer zwischen der Hängebühne und der Wand eine Unter­druckzone erzeugt wird, um durch Saugwirkung diese Arbeitsbühne an der Wand zu halten. Alternativ kann mittels dieser Gebläse gegen die Wand geblasen werden, um zwischen der Wand und der Arbeitsbühne ein Druckluftkissen zu erzeugen, welches die Arbeitsbühne in einem bestimmten Abstand von der Wand hält.Such a work platform is known from DE-OS 20 14 102, which has blowers, by means of which a vacuum zone is created between the suspended platform and the wall in order to hold this working platform on the wall by suction. Alternatively, these blowers can be used to blow against the wall in order to produce a compressed air cushion between the wall and the work platform, which cushion keeps the work platform at a certain distance from the wall.

Die DE-G 85 31 513 U1 beschreibt eine Hilftskonstruktion, bei der an oder in der Arbeits­bühne mindestens eine, eine Schubkraft erzeugende Strömungsmaschine montiert ist, deren Druckseite an der der Wand abgewandten Seite der Arbeitsbühne ange­ordnet und von der Wand weggerichtet ist.DE-G 85 31 513 U1 describes an auxiliary construction in which at least one turbomachine generating a thrust force is mounted on or in the work platform, the pressure side of which is arranged on the side of the work platform facing away from the wall and is directed away from the wall.

Der Erfindung liegt die Aufgabe zugrunde, die Ar­beitsbühne einer derartigen Befahranlage so zu ge­stalten, daß die bekannten Spannseile entfallen, die Arbeitsbühne aber dennoch an gekrümmten Flächen zu­verlässig gegen das Bauwerk gedrückt, in zwei senk­recht zueinander stehenden Richtungen verfahrbar ist und ein Pendeln und Ausschwingen sicher verhindert wird.The invention has for its object to design the work platform of such an access system so that the known tensioning ropes are omitted, but the work platform is nevertheless reliably pressed against curved surfaces on the structure, can be moved in two mutually perpendicular directions and reliably prevents oscillation and swinging out becomes.

Erfindungsgemäß wird diese Aufgabe durch den Inhalt des Anspruchs 1 gelöst.According to the invention, this object is achieved by the content of claim 1.

Die Magnetplatten, die an beiden Seiten der Arbeits­bühne mittels Auslegern angelenkt sind, halten die Arbeitsbühne an Bauwerkflächen, die aus Stahlbeton oder Stahl bestehen, sicher fest. Die Magnetplatte ist mit Kugelrollen ausgerüstet, mittels derer sie auf der Bauwerksfläche geführt wird. Durch das Ver­hindern des Pendelns und Ausschwingens wird die Be­triebssicherheit erhöht und die arbeitspsycholo­gischen sowie physiologischen Bedingungen für die Arbeitskräfte auf der Arbeitsbühne verbessert. Die Spannseile, die eine erhebliche Eigenlast besitzen und insbesondere in großer Höhe eine beträchtliche Windangriffsfläche darstellen, können entfallen. Da­mit entfällt auch das aufwendige Vorspannen der Seile und die zur Konstanthaltung der Vorspannung erforder­lichen Einrichtungen. Da das Vorspannen entfällt, kann der Oberwagen leichterer Bauweise ausgeführt werden. Dies ist hinsichtlich der Tragfähigkeit des Bauwerkes, insbesondere bei am Kopf von Schornsteinen oder Kühltürmen vorliegenden Schäden von besonderer Bedeutung.The magnetic plates, which are articulated on both sides of the working platform by means of cantilevers, hold the working platform securely to building surfaces made of reinforced concrete or steel. The magnetic plate is equipped with ball rollers, by means of which it is guided on the building surface. By preventing commuting and swinging out, operational safety is increased and the occupational psychological and physiological conditions for the Workforce improved on the work platform. The tensioning ropes, which have a considerable dead load and represent a considerable area exposed to wind, especially at high altitudes, can be omitted. This also eliminates the complex pretensioning of the ropes and the equipment required to keep the pretension constant. Since the pretensioning is omitted, the superstructure can be made lighter. This is of particular importance with regard to the load-bearing capacity of the building, especially if there is damage to the head of chimneys or cooling towers.

Ferner entfällt die aufwendige Herstellung und An­bringung der unteren Führungsschiene einschließlich der dafür notwendigen Stützkonsolen.Furthermore, the complex manufacture and attachment of the lower guide rail, including the support brackets required for this, is eliminated.

Mit Vorteil ist die Magnetplatte als Permanent-Magnet ausgebildet. Bei dieser Ausführungsform ist keine Speisung erforderlich.The magnetic plate is advantageously designed as a permanent magnet. No feed is required in this embodiment.

Bei einer anderen vorteilhaften Ausführungsform ist in der Magnetplatte ein Elektromagnet und ein Strom­speicher eingebaut. Der Stromerzeuger für die Elektromagneten befindet sich in der Arbeitsbühne. Vorteilhafterweise kann der Stromspeicher bzw. der Stromerzeuger die Antriebe auch für die Vertikal- und Kreisfahrt speisen. Die Anordnung der Stromerzeuger oder Stromspeicher in der Arbeitsbühne hat den besonderen Vorteil, die Befahranlage ohne Versorgungskabel betreiben zu können.In another advantageous embodiment, an electromagnet and a power store are installed in the magnetic plate. The power generator for the electromagnets is located in the work platform. The power store or the power generator can advantageously also feed the drives for vertical and circular travel. The arrangement of the power generator or power storage in the work platform has the particular advantage of being able to operate the access system without a supply cable.

Die Magnetstärke ist von den jeweiligen Arbeitsbedingungen abhängig. Sie wird von den Bauwerksparametern wie beispielsweise der Höhe, der Form oder vom Material bestimmt.The magnet strength depends on the respective working conditions. It is determined by the building parameters such as height, shape or material.

Die Arbeitsbühne ist mit Lenkrollen ausgerüstet, die bei der Horizontalfahrt quer und bei der Vertikal­fahrt längst gestellt werden können. Wird die Be­fahranlage bei gekrümmten Bauwerkformen, beispiels­weise an Kühltürmen eingesetzt, wird ein Neigungsaus­gleich durchgeführt. Bei extremen Bauwerkformen sind die Lenkrollen mit Vorteil als Kugelrollen ausgebil­det.The work platform is equipped with swivel castors that can be placed sideways in horizontal travel and long ago in vertical travel. If the access system is used for curved building shapes, for example on cooling towers, an inclination compensation is carried out. In extreme building shapes, the castors are advantageously designed as ball casters.

Ein Ausführungsbeispiel der Erfindung soll in der folgenden Beschreibung unter Bezugnahme auf die Fig. der Zeichnungen erläutert werden.An embodiment of the invention will be explained in the following description with reference to the figures of the drawings.

Es zeigen:

  • Fig. 1: eine schematische Ansicht einer, an einem zylindrischen Bauwerk montierten Befahran­lage,
  • Fig. 2: eine schematische Seitenansicht der Be­fahranlage,
  • Fig. 3: ein schematische Vorderansicht der Befahr­anlage und
  • Fig. 4: ein schematische Draufsicht auf eine an eine Kreiszylinderfläche angedrückte Be­fahranlage.
Show it:
  • 1: a schematic view of an access system mounted on a cylindrical structure,
  • 2: a schematic side view of the access system,
  • Fig. 3: a schematic front view of the elevator system and
  • 4: a schematic plan view of an access system pressed onto a circular cylinder surface.

Die in Fig. 1 dargestellte Arbeitsbühne 4 einer Befahranlage ist lediglich mittels der Fahr- und Führungsseile 3 am Oberwagen 2 aufgehängt, der am oberen Rand eines zylinderischen Bauwerkes montiert ist. In bekannter weise kann dieser Oberwagen 2 um den Rand dieses zylinderischen Bauwerkes herum eine Kreisfahrt durchführen.The work platform 4 of an access system shown in FIG. 1 is only suspended from the superstructure 2 by means of the driving and guide ropes 3, which is mounted on the upper edge of a cylindrical structure. In a known manner, this superstructure 2 can make a circular trip around the edge of this cylindrical structure.

Die Arbeitsbühne 4 weist auf jeder Seite einen an­gelenkten Ausleger 5 auf, der an seinem Ende jeweils eine Magnetplatte 6 trägt.The work platform 4 has an articulated boom 5 on each side, which carries a magnetic plate 6 at each end.

Wie die Fig. 1 und 4 zeigen, wird die Arbeitsbühne 4 mittels der Magnetplatten 6 sicher an der Bauwerkfläche 1 gehalten.1 and 4 show, the work platform 4 is held securely on the building surface 1 by means of the magnetic plates 6.

Jede Magnetplatte 6 ist mittels Kugelrollen 7 auf der Bauwerksfläche 1 geführt.Each magnetic plate 6 is guided on the building surface 1 by means of ball rollers 7.

Die Arbeitsbühne 4 weist Lenkrollen 8 auf, die, wie in Fig. 4 schematisch angedeutet, bei Horizontalfahrt quer gestellt sind. Bei Vertikalfahrt werden diese Lenkrollen 8 um 90° gedreht.The work platform 4 has castors 8 which, as indicated schematically in FIG. 4, are placed transversely during horizontal travel. When moving vertically, these castors 8 are rotated by 90 °.

Claims (6)

1. Befahranlage für Außen- oder Innenwände von Bauwerken aus Stahlbeton oder Stahl, deren
1. Arbeitsbühne (4) mittels Fahr- und Führungs­seilen (3) an einem,
2. am oberen Rand des Bauwerks verfahrbaren Oberwagen (2) angehängt und
3. mittels eines Motorantriebes längs dieser Seile vertikal verfahrbar ist,
dadurch gekennzeichnet, daß
4. an beiden Seiten der Arbeitsbühne (4) je ein Ausleger (5) angelenkt ist, der
5. an seinem Ende eine Magnetplatte (6) trägt,
5.1 die mit Kugelrollen (7) ausgerüstet ist mittels derer die Arbeitsbühne (4) auf der Bauwerksfläche geführt wird.1. Access system for external or internal walls of structures made of reinforced concrete or steel, the
1. work platform (4) by means of travel and guide ropes (3) on one,
2. attached to the upper edge of the structure movable superstructure (2) and
3. can be moved vertically along these cables by means of a motor drive,
characterized in that
4. on both sides of the work platform (4) a boom (5) is articulated, the
5. carries a magnetic plate (6) at its end,
5.1 which is equipped with ball rollers (7) by means of which the work platform (4) is guided on the building surface. 2. Befahranlage nach Anspruch 1,
dadurch gekennzeichnet, daß
5.1 die Magnetplatte (6) ein Permanent-Magnet ist.2. lift system according to claim 1,
characterized in that
5.1 the magnetic plate (6) is a permanent magnet. 3. Befahranlage nach Anspruch 1,
dadurch gekennzeichnet, daß
5.2 die Magnetplatte (6) ein Elektromagnet ist.3. lift system according to claim 1,
characterized in that
5.2 the magnetic plate (6) is an electromagnet. 4. Befahranlage nach Anspruch 3,
dadurch gekennzeichnet, daß
5.2.1 ein Stromspeicher oder Stromerzeuger für die Elektromagneten in der Arbeitsbühne (4) montiert ist.4. lift system according to claim 3,
characterized in that
5.2.1 a power store or power generator for the electromagnets is mounted in the work platform (4). 5. Befahranlage nach mindestens einem der Ansprüche 1 - 4,
dadurch gekennzeichnet, daß
4.1 die Arbeitsbühne (4) mit Lenkrollen (8) ausgerüstet ist.5. lift system according to at least one of claims 1-4,
characterized in that
4.1 the work platform (4) is equipped with castors (8). 6. Befahranlage nach Anspruch 5,
dadurch gekennzeichnet, daß
4.1.1 die Lenkrollen (8) als Kugelrollen ausgebildet sind.6. lift system according to claim 5,
characterized in that
4.1.1 the steering rollers (8) are designed as ball rollers.
EP89730143A 1988-06-30 1989-06-14 Mobile device Expired - Lifetime EP0349476B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89730143T ATE81878T1 (en) 1988-06-30 1989-06-14 SERVICE SYSTEM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822424 1988-06-30
DE3822424A DE3822424A1 (en) 1988-06-30 1988-06-30 ACCESS SYSTEM

Publications (3)

Publication Number Publication Date
EP0349476A2 true EP0349476A2 (en) 1990-01-03
EP0349476A3 EP0349476A3 (en) 1990-05-09
EP0349476B1 EP0349476B1 (en) 1992-10-28

Family

ID=6357813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730143A Expired - Lifetime EP0349476B1 (en) 1988-06-30 1989-06-14 Mobile device

Country Status (7)

Country Link
US (1) US4960185A (en)
EP (1) EP0349476B1 (en)
AT (1) ATE81878T1 (en)
CA (1) CA1299222C (en)
DE (2) DE3822424A1 (en)
ES (1) ES2036368T3 (en)
GR (1) GR3006835T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103643789A (en) * 2013-12-17 2014-03-19 青海鹏盛电力器材有限公司 Turnover safety maintenance platform of power steel tube tower
CN114704068A (en) * 2022-06-07 2022-07-05 中铁城建集团第一工程有限公司 Attached lifting scaffold system
CN115419248A (en) * 2022-08-25 2022-12-02 广州德峰机电工程有限公司 Seat frame for air conditioner outdoor unit and construction method thereof

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DE3910484A1 (en) * 1989-03-31 1990-10-04 Siemens Ag Soldering apparatus
GB9908603D0 (en) * 1999-04-16 1999-06-09 W & R Lewis Limited Access scaffolding scaffolding devices and method
ES2189671B2 (en) * 2001-11-02 2004-09-16 Servicios De Ingenieria Y Montaje, Alen, S.L. WAY FOR AEROGENERATORS WITH VARIABLE SECTION FUSE.
ES2244292A1 (en) * 2003-09-19 2005-12-01 Peri, S.A. Lifting device for lifting persons along the shaft of a wind generator.
HK1172197A2 (en) * 2012-06-01 2013-04-12 Wls Intellectual Property Ltd Improvements in building components and structures
DE102012105420A1 (en) * 2012-06-21 2013-12-24 GESTA Gesellschaft für Stahlrohrgerüste mit beschränkter Haftung Superstructure of a vehicle
DE102012105417B4 (en) * 2012-06-21 2014-02-20 GESTA Gesellschaft für Stahlrohrgerüste mit beschränkter Haftung Access system for overhanging or convex curved walls
US9410331B2 (en) 2013-06-17 2016-08-09 Sky Climber Access Solutions Atlanta Llc Magnetic anchor system for suspension work equipment, method of remotely attaching a suspended work platform to a work structure, and a system and device for same
CN104278828B (en) * 2014-09-30 2016-08-24 北京首钢建设集团有限公司 A kind of concrete chimney dismantling operation platform
WO2017162249A1 (en) * 2016-03-22 2017-09-28 Vestas Wind Systems A/S Wind turbine descent system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103643789A (en) * 2013-12-17 2014-03-19 青海鹏盛电力器材有限公司 Turnover safety maintenance platform of power steel tube tower
CN114704068A (en) * 2022-06-07 2022-07-05 中铁城建集团第一工程有限公司 Attached lifting scaffold system
CN114704068B (en) * 2022-06-07 2022-08-19 中铁城建集团第一工程有限公司 Attached lifting scaffold system
CN115419248A (en) * 2022-08-25 2022-12-02 广州德峰机电工程有限公司 Seat frame for air conditioner outdoor unit and construction method thereof

Also Published As

Publication number Publication date
GR3006835T3 (en) 1993-06-30
EP0349476A3 (en) 1990-05-09
DE3822424C2 (en) 1990-04-12
US4960185A (en) 1990-10-02
CA1299222C (en) 1992-04-21
EP0349476B1 (en) 1992-10-28
DE3822424A1 (en) 1990-01-04
ES2036368T3 (en) 1993-05-16
ATE81878T1 (en) 1992-11-15
DE58902542D1 (en) 1992-12-03

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