EP0746524B1 - Building elevator - Google Patents

Building elevator Download PDF

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Publication number
EP0746524B1
EP0746524B1 EP95910407A EP95910407A EP0746524B1 EP 0746524 B1 EP0746524 B1 EP 0746524B1 EP 95910407 A EP95910407 A EP 95910407A EP 95910407 A EP95910407 A EP 95910407A EP 0746524 B1 EP0746524 B1 EP 0746524B1
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EP
European Patent Office
Prior art keywords
building hoist
hoist according
welded
mast
arm
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.)
Expired - Lifetime
Application number
EP95910407A
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German (de)
French (fr)
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EP0746524A1 (en
Inventor
Aloys Zeppenfeld
Ewald Reinard
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.)
SCHULTE TRANSPORTSYSTEME GMBH
Original Assignee
Schulte Transportsysteme GmbH
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
Priority claimed from DE19944405651 external-priority patent/DE4405651C1/en
Application filed by Schulte Transportsysteme GmbH filed Critical Schulte Transportsysteme GmbH
Publication of EP0746524A1 publication Critical patent/EP0746524A1/en
Application granted granted Critical
Publication of EP0746524B1 publication Critical patent/EP0746524B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure

Definitions

  • the invention relates to a construction elevator with a vertically aligned, made of three stiffened together Belts existing, connectable by several Sections formed mast as well as an over a rack guided, between a loading position and an unloading movable carriage.
  • Such a construction elevator or in particular a mast for such a construction elevator is the subject of the German patent P 38 43 996.4 and European Patent 376 167.
  • This mast has two adjacent corner supports stiffened by struts consisting of two opposite one another polygonal, flat honeycomb elements in Form of discs.
  • the object of the invention based on the construction elevator of the type mentioned above To design that with a light, labor and material saving Construction ensures increased security is.
  • the mast there is only one stiffening Side surface of the mast made of trapezoidal sheets, the parallel edges welded to the straps of the mast are, the rack for guiding the carriage in the plane of the sheets is welded to a belt.
  • the trapezoidal sheets are at right angles or almost on this mast perpendicular to the carriage guide.
  • the burden of Load handling equipment is removed on one level in the mast. Accordingly, the load handler only needs a boom fork, making it lighter.
  • the drive power which is an essential cost factor, reduced and the mast can be constructed more easily.
  • the total forces transmitted by the carriage become almost completely from the rack and plane of the sheets added.
  • the third belt the one with the other two belts welded to the sheet metal each using round iron struts essentially only serves of stabilization or leadership.
  • the mast owns despite a considerably reduced weight, a relative increased load capacity in relation to the relatively low Material requirements. Despite the small cross section this mast anchor spacing which is more familiar to those Masts exceed 50% and more.
  • the strap that is welded to the rack as Rectangular section tube formed while the other two Belts consist of tubes with a round cross-section.
  • the sheets are essentially provided circular recesses, whereby another Material saving is achieved which the static force absorption due to the reduction in the risk of buckling of the sheets and the wind forces increased.
  • the sheets are expediently along their peripheral edges bevelled, which increases stability becomes. At the same time, these bevels give the possibility a longer weld seam and thus a more intimate one Connection with the adjacent belts.
  • a leading arm is pivotally held on the carriage, which rests against the mast under the pressure of a spring and with a device for interrupting the control current connected is. If the carriage does not approach you secured mast section, the leading arm presses with its free end this from the vertical position, whereby the control current is interrupted and the carriage is stopped immediately. This results in a high level of security that meets the legal requirements.
  • the leading end is at the free end Armes held a roller or gear leading to one Reduction of friction and a reduction in wear to lead.
  • the arm preferably consists of an essentially centrally mounted rocker arm, one end of which is under the pressure of the spring while the other is the Roller-bearing end in connection with an off switch stands.
  • FIG. 1 and 2 is in its entirety with the Reference number 10 provided construction elevator reproduced in the working position. It rests on height-adjustable supports 12 which any unevenness in the stand area can be adjusted are.
  • a pair of wheels 14 are held on the stand frame 16 and enables road transport of the construction elevator 10.
  • a load handler surrounded by a protective grille 18 is about a not shown in detail Motor up and down on mast 20, one of the motor driven pinion with a dashed line in FIG. 1 Lines indicated rack 22 combs.
  • the load handler 18 in both the lower Loading position and the upper driving position shown.
  • the mast 20 consists, as can be seen from FIGS. 1 and 2, from individual subsections 24, one of which is shown in FIG. 3 is reproduced.
  • the structure of the mast 20 or the sections 24 is to be described in more detail below with reference to FIGS are explained.
  • a first belt 26 a rectangular or square Cross-section. With this belt 26 is the rack 28 welded.
  • the second and third belts 30 and 32 consist of a tube with a uniform cross section.
  • Forces are between the first and second belts 26 and 30 trapezoidal sheets 34 welded in. The whole force is practically taken up by the plane of the sheets 34.
  • To the third belt 32 is a lattice-shaped connection via round iron bars 36.
  • the sheets 34 along their Edges are provided with bevels 38.
  • the folds 38 can each end with the two belts 26 and 30th be welded.
  • the sheets 34 are with circular recesses 40 provided, which leads to a material saving and Lead to weight reduction, the force absorption or Power transmission capabilities by reducing the risk of buckling and increase the wind forces. Virtually the whole Force is absorbed by the plane of the sheets 34.
  • the mast sections 24 each carry at the upper end of the Belts 26, 30 and 32 diameter-reduced projections 42, in corresponding recesses at the lower end of the next section 24 intervene.
  • the respective sections 24 are connected to one another via tabs 44 screwed.
  • a leading arm 46 is provided in the form of a rocker arm.
  • a Cross-section U-shaped tab 48 held a bolt 50 carries as a pivot axis for the rocker arm 46.
  • the rocker arm 46th is under the pressure of a spring 52 at the lower end.
  • a roller 54 arranged under the pressure of the spring 52 in contact with the inside of the mast section 24 stands.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Types And Forms Of Lifts (AREA)
  • Jib Cranes (AREA)
  • Sewage (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

In a building elevator with a substantially vertical mast consisting of three mutually stiffened booms and made up of a plurality of partial sections which can be secured together and a bogie truck driven via a rack between a loading and an unloading position, the arrangement is such that the stiffening of only one lateral surface of the mast (20) consists of substantially trapezoidal sheets (34), the parallel edges of which are welded to booms (26, 30) and the rack (28) to guide the load carrier (18) is welded to a boom (26) in the plane of the sheets (34).

Description

Die Erfindung betrifft einen Bauaufzug mit einem im wesentlichen vertikal ausgerichteten, aus drei miteinander versteiften Gurten bestehenden, durch mehrere miteinander verbindbare Teilabschnitte gebildeten Mast sowie einem über eine Zahnstange geführten, zwischen einer Beladestellung und einer Entladestellung verfahrbaren Laufwagen.The invention relates to a construction elevator with a vertically aligned, made of three stiffened together Belts existing, connectable by several Sections formed mast as well as an over a rack guided, between a loading position and an unloading movable carriage.

Ein derartiger Bauaufzug bzw. insbesondere ein Mast für einen derartigen Bauaufzug ist Gegenstand des deutschen Patentes P 38 43 996.4 und des europäischen Patentes 376 167. Bei diesem Mast sind jeweils zwei benachbarte Eckstützen durch Verstrebungen versteift, die aus zwei einandergegenüberliegenden polygonförmigen, flächigen Wabenelementen in Form von Scheiben bestehen.Such a construction elevator or in particular a mast for such a construction elevator is the subject of the German patent P 38 43 996.4 and European Patent 376 167. This mast has two adjacent corner supports stiffened by struts consisting of two opposite one another polygonal, flat honeycomb elements in Form of discs.

Diese Ausgestaltung ist für kleinere Nutzlasten völlig ungeeignet, da der Mast viel zu arbeitsaufwendig, viel zu schwer und viel zu unhandlich wird. Zu seiner Montage werden zwei Monteure oder ein Monteur mit Einsatz eines Montagehilfskranes benötigt. Darüber hinaus ist bei dem bekannten Mast nicht auszuschließen, daß der Laufwagen in einen gegebenenfalls noch nicht abgesicherten, d.h. mit dem vorangehenden Mastabschnitt verschraubten Abschnitt hineinfährt. Dies kann zur Abstürzgefahr mit meist tödlichem Ausgang führen.This configuration is completely unsuitable for smaller payloads, since the mast is too labor intensive, much too heavy and too unwieldy. For its assembly two mechanics or one mechanic using an auxiliary crane needed. In addition, the known Mast does not rule out that the carriage in one possibly not yet secured, i.e. with the previous one The mast section retracts the screwed section. This can lead to a risk of falling with a mostly fatal outcome to lead.

Angesichts dieser Problematik liegt der Erfindung die Aufgabe zugrunde, den Bauaufzug der eingangs genannten Art so auszugestalten, daß bei einer leichten, arbeits- und materialsparenden Bauweise eine erhöhte Sicherheit gewährleistet ist.In view of this problem, the object of the invention based on the construction elevator of the type mentioned above To design that with a light, labor and material saving Construction ensures increased security is.

Gelöst wird diese Aufgabe gemäß der Erfindung durch die im Kennzeichen des Hauptanspruches angegebenen Merkmale, wobei hinsichtlich bevorzugter Ausgestaltungen des erfindungsgemäßen Bauaufzuges auf die Merkmale der Unteransprüche verwiesen wird.This object is achieved according to the invention by the Characteristics of the main claim specified features, wherein with regard to preferred embodiments of the invention Construction elevator referred to the features of the subclaims becomes.

Gemäß der Erfindung besteht die Versteifung nur einer Seitenfläche des Mastes aus trapezförmigen Blechen, deren parallele Kanten mit den Gurten des Mastes verschweißt sind, wobei die Zahnstange zur Führung des Laufwagens in der Ebene der Bleche an einem Gurt angeschweißt ist. Bei diesem Mast stehen die Trapezbleche rechtwinklig oder fast rechtwinklig zur Führung des Laufwagens. Die Last des Lastaufnahmemittels wird in einer Ebene im Mast abgetragen. Dementsprechend benötigt das Lastaufnahmemittel auch nur eine Auslegergabel und wird dadurch leichter. In gleichem Maße, wie das Eigengewicht reduziert wird, erhöht sich die Nutzlast oder bei gleichbleibender Nutzlast kann die Antriebsleistung, die einen wesentlichen Kostenfaktor darstellt, reduziert und der Mast leichter konstruiert werden.According to the invention, there is only one stiffening Side surface of the mast made of trapezoidal sheets, the parallel edges welded to the straps of the mast are, the rack for guiding the carriage in the plane of the sheets is welded to a belt. At The trapezoidal sheets are at right angles or almost on this mast perpendicular to the carriage guide. The burden of Load handling equipment is removed on one level in the mast. Accordingly, the load handler only needs a boom fork, making it lighter. In the same Dimensions of how the dead weight is reduced increases Payload or with a constant payload, the drive power, which is an essential cost factor, reduced and the mast can be constructed more easily.

Die gesamten vom Laufwagen übertragenen Kräfte werden nahezu vollständig von der Zahnstange und der Ebene der Bleche aufgenommen. Der dritte Gurt, der mit den beiden anderen mit den Blechen verschweißten Gurten jeweils über Rundeisenverstrebungen verbunden ist, dient im wesentlichen lediglich der Stabilisierung oder Führung. Der Mast besitzt trotz eines erheblich verringerten Eigengewichtes eine relativ erhöhte Tragkraft in Bezug auf den relativ geringen Materialbedarf. Trotz des geringen Querschnittes ermöglicht dieser Mast Ankerabstände, welche diejenigen bekannter Maste um 50 % und mehr übersteigen.The total forces transmitted by the carriage become almost completely from the rack and plane of the sheets added. The third belt, the one with the other two belts welded to the sheet metal each using round iron struts essentially only serves of stabilization or leadership. The mast owns despite a considerably reduced weight, a relative increased load capacity in relation to the relatively low Material requirements. Despite the small cross section this mast anchor spacing which is more familiar to those Masts exceed 50% and more.

Der Vorteil dieser neuen Lösung ist um so größer, je mehr sich die Trapezbleche einem rechtwinkligen Dreieck nähern. Bei einem gleichschenkligen Dreieck wären bereits ca. 1/3 dieses Vorteils durch die Umlenkung der Kräfte im Mast verschenkt.The advantage of this new solution is the greater, the more the trapezoidal sheets approach a right-angled triangle. In the case of an isosceles triangle, this would be approx. 1/3 this advantage is given away by redirecting the forces in the mast.

Gemäß einer vorteilhaften Ausgestaltung des Bauaufzuges ist der Gurt, der mit der Zahnstange verschweißt ist, als Rechteckprofilrohr ausgebildet, während die anderen beiden Gurte aus Rohren mit rundem Querschnitt bestehen. Durch diese Ausbildung vermag der Gurt, der mit der Zahnstange verschweißt ist, die hier auftretende besonders hohe Belastung aufzunehmen.According to an advantageous embodiment of the construction elevator the strap that is welded to the rack as Rectangular section tube formed while the other two Belts consist of tubes with a round cross-section. By the belt with the rack is capable of this training is welded, the particularly high load occurring here to record.

Vorteilhafterweise sind die Bleche mit im wesentlichen kreisförmigen Ausnehmungen versehen, wodurch eine weitere Materialersparnis erreicht wird, die die statische Kraftaufnahme aufgrund der Reduzierung der Beulgefahr der Bleche und der Windkräfte erhöht.Advantageously, the sheets are essentially provided circular recesses, whereby another Material saving is achieved which the static force absorption due to the reduction in the risk of buckling of the sheets and the wind forces increased.

Zweckmäßigerweise sind die Bleche entlang ihren Umfangskanten mit Abkantungen versehen, wodurch die Stabilität erhöht wird. Gleichzeitig geben diese Abkantungen die Möglichkeit einer längeren Schweißnaht und damit einer innigeren Verbindung mit den angrenzenden Gurten.The sheets are expediently along their peripheral edges bevelled, which increases stability becomes. At the same time, these bevels give the possibility a longer weld seam and thus a more intimate one Connection with the adjacent belts.

Gemäß einer besonders bevorzugten Ausgestaltung der Erfindung ist am Laufwagen ein vorauseilender Arm schwenkbar gehalten, der unter dem Druck einer Feder an dem Mast anliegt und mit einer Einrichtung zur Unterbrechung des Steuerstroms verbunden ist. Nähert sich der Laufwagen einem nicht gesicherten Mastabschnitt, so drückt der vorauseilende Arm mit seinem freien Ende diesen aus der Vertikalposition heraus, wodurch der Steuerstrom unterbrochen und der Laufwagen augenblicklich angehalten wird. Es ergibt sich somit eine hohe Sicherheit, die die gesetzlichen Anforderungen erfüllt.According to a particularly preferred embodiment of the invention a leading arm is pivotally held on the carriage, which rests against the mast under the pressure of a spring and with a device for interrupting the control current connected is. If the carriage does not approach you secured mast section, the leading arm presses with its free end this from the vertical position, whereby the control current is interrupted and the carriage is stopped immediately. This results in a high level of security that meets the legal requirements.

Vorteilhafterweise ist am freien Ende des vorauseilenden Armes eine Rolle oder ein Zahnrad gehalten, die zu einer Reduzierung der Reibung und einer Verminderung des Verschleißes führen. Bevorzugt besteht der Arm aus einem im wesentlichen mittig gelagerten Kipphebel, dessen eines Ende unter dem Druck der Feder steht, während das andere die Rolle tragende Ende mit einem Ausschalter in Verbindung steht.Advantageously, the leading end is at the free end Armes held a roller or gear leading to one Reduction of friction and a reduction in wear to lead. The arm preferably consists of an essentially centrally mounted rocker arm, one end of which is under the pressure of the spring while the other is the Roller-bearing end in connection with an off switch stands.

Weitere Vorteile, Einzelheiten und erfindungswesentliche Merkmale ergeben sich aus der nachfolgenden Beschreibung einer bevorzugten Ausführungsform des erfindungsgemäßen Bauaufzuges unter Bezugnahme auf die beigefügte Zeichnung. Dabei zeigt im einzelnen:

Fig. 1
eine Seitenansicht des erfindungsgemäßen Bauaufzuges mit einer Darstellung des Laufwagens sowohl in der Beladeposition als auch der Fahrposition,
Fig. 2
eine Vorderansicht des Bauaufzuges gemäß Fig. 1,
Fig. 3
eine perspektivische Darstellung eines Mastabschnittes,
Fig. 4
einen Horizontalschnitt durch den Mastabschnitt gemäß Fig. 3 in größerem Maßstab,
Fig. 5
eine Seitenansicht des Laufwagens bei Erreichen eines ungesicherten Mastabschnittes und
Fig. 6
eine Darstellung des dem Laufwagen vorauseilenden Armes in größerem Maßstab.
Further advantages, details and features essential to the invention result from the following description of a preferred embodiment of the construction hoist according to the invention with reference to the attached drawing. The individual shows:
Fig. 1
a side view of the construction elevator according to the invention with a representation of the carriage both in the loading position and the driving position,
Fig. 2
2 shows a front view of the construction elevator according to FIG. 1,
Fig. 3
a perspective view of a mast section,
Fig. 4
3 shows a horizontal section through the mast section according to FIG. 3 on a larger scale,
Fig. 5
a side view of the carriage when reaching an unsecured mast section and
Fig. 6
a representation of the arm leading the carriage on a larger scale.

In den Fig. 1 und 2 ist der in seiner Gesamtheit mit der Bezugsziffer 10 versehene Bauaufzug in Arbeitsposition wiedergegeben. Er ruht auf höhenverstellbaren Stützen 12, die ggf. vorhandenen Unebenheiten im Standbereich anpaßbar sind. Ein Paar von Laufrädern 14 ist am Standrahmen 16 gehalten und ermöglicht einen Straßentransport des Bauaufzuges 10. Ein von einem Schutzgitter umgebenes Lastaufnahmemittel 18 wird über einen im einzelnen nicht dargestellten Motor am Mast 20 auf- und abgeführt, wobei ein von dem Motor getriebenes Ritzel mit einer in Fig. 1 durch gestrichelte Linien angedeuteten Zahnstange 22 kämmt. In den Fig. 1 und 2 ist das Lastaufnahmemittel 18 sowohl in der unteren Beladeposition als auch der oberen Fahrposition dargestellt.1 and 2 is in its entirety with the Reference number 10 provided construction elevator reproduced in the working position. It rests on height-adjustable supports 12 which any unevenness in the stand area can be adjusted are. A pair of wheels 14 are held on the stand frame 16 and enables road transport of the construction elevator 10. A load handler surrounded by a protective grille 18 is about a not shown in detail Motor up and down on mast 20, one of the motor driven pinion with a dashed line in FIG. 1 Lines indicated rack 22 combs. In the Fig. 1 and 2 is the load handler 18 in both the lower Loading position and the upper driving position shown.

Der Mast 20 besteht, wie sich aus den Fig. 1 und 2 ergibt, aus einzelnen Teilabschnitten 24, von denen einer in Fig. 3 wiedergegeben ist. Die Struktur des Mastes 20 bzw. der Teilabschnitte 24 soll nachfolgend anhand der Fig. 3 und 4 näher erläutert werden. Wie aus Fig. 4 ersichtlich ist, besitzt ein erster Gurt 26 einen rechteckförmigen bzw. quadratischen Querschnitt. Mit diesem Gurt 26 ist die Zahnstange 28 verschweißt. Der zweite und dritte Gurt 30 bzw. 32 bestehen aus einem Rohr mit gleichförmigem Querschnitt. Zur Aufnahme bzw. Ableitung der von dem Lastenaufnahmemittel 18 auf die Zahnstange 28 übertragenen Kräfte sind zwischen dem ersten und dem zweiten Gurt 26 und 30 trapezförmige Bleche 34 eingeschweißt. Die gesamte Kraft wird praktisch von der Ebene der Bleche 34 aufgenommen. Zu dem dritten Gurt 32 besteht eine gitterförmige Verbindung über Rundeisenstäbe 36. The mast 20 consists, as can be seen from FIGS. 1 and 2, from individual subsections 24, one of which is shown in FIG. 3 is reproduced. The structure of the mast 20 or the sections 24 is to be described in more detail below with reference to FIGS are explained. As can be seen from Fig. 4, a first belt 26 a rectangular or square Cross-section. With this belt 26 is the rack 28 welded. The second and third belts 30 and 32 consist of a tube with a uniform cross section. For receiving or deriving from the load handling device 18 transferred to the rack 28 Forces are between the first and second belts 26 and 30 trapezoidal sheets 34 welded in. The whole force is practically taken up by the plane of the sheets 34. To the third belt 32 is a lattice-shaped connection via round iron bars 36.

Aus Fig. 3 wird deutlich, daß die Bleche 34 entlang ihrer Kanten mit Abkantungen 38 versehen sind. Die Abkantungen 38 können jeweils endseitig mit den beiden Gurten 26 und 30 verschweißt sein. Die Bleche 34 sind mit kreisrunden Aussparungen 40 versehen, die zu einer Materialeinsparung und Gewichtsreduzierung führen, die die Kraftaufnahme bzw. Kraftübertragungsfähigkeiten durch Reduzierung der Beulgefahr und der Windkräfte erhöhen. Praktisch die gesamte Kraft wird von der Ebene der Bleche 34 aufgenommen.From Fig. 3 it is clear that the sheets 34 along their Edges are provided with bevels 38. The folds 38 can each end with the two belts 26 and 30th be welded. The sheets 34 are with circular recesses 40 provided, which leads to a material saving and Lead to weight reduction, the force absorption or Power transmission capabilities by reducing the risk of buckling and increase the wind forces. Virtually the whole Force is absorbed by the plane of the sheets 34.

Die Mastabschnitte 24 tragen jeweils am oberen Ende der Gurte 26, 30 bzw. 32 durchmesserreduzierte Vorsprünge 42, die in entsprechende Ausnehmungen am jeweils unteren Ende des nächsten Teilabschnittes 24 eingreifen. Zur Montage werden die jeweiligen Abschnitte 24 über Laschen 44 miteinander verschraubt.The mast sections 24 each carry at the upper end of the Belts 26, 30 and 32 diameter-reduced projections 42, in corresponding recesses at the lower end of the next section 24 intervene. For assembly the respective sections 24 are connected to one another via tabs 44 screwed.

Wie die Fig. 5 und 6 zeigen, ist am Lastaufnahmemittel 18 ein vorauseilender Arm 46 in der Form eines Kipphebels vorgesehen. Am Rahmen des Lastaufnahmemittels 18 ist eine im Querschnitt U-förmige Lasche 48 gehalten, die einen Bolzen 50 als Schwenkachse für den Kipphebel 46 trägt. Aus der Darstellung in Fig. 6 wird deutlich, daß der Kipphebel 46 am unteren Ende unter dem Druck einer Feder 52 steht. Am gegenüberliegenden Ende des Kipphebels 46 ist eine Rolle 54 angeordnet, die unter dem Druck der Feder 52 in Anlage mit der Innenseite des Mastabschnittes 24 steht. Bei einem Einschwenken des Kipphebels 46 betätigt dieser einen Steuerschalter 56, der die Stromzufuhr unterbricht.5 and 6 show, is on the load suspension device 18th a leading arm 46 is provided in the form of a rocker arm. On the frame of the load suspension device 18 is a Cross-section U-shaped tab 48 held a bolt 50 carries as a pivot axis for the rocker arm 46. From the 6 it is clear that the rocker arm 46th is under the pressure of a spring 52 at the lower end. At the opposite end of the rocker arm 46 is a roller 54 arranged under the pressure of the spring 52 in contact with the inside of the mast section 24 stands. When swiveling in the rocker arm 46 actuates a control switch 56, which cuts off the power supply.

Wenn sich der Laufwagen einem nicht gesicherten Mastabschnitt 24 nähert, drückt die Rolle 54 unter der Wirkung der Kraft der Feder 52 den Teilabschnit 24 des Mastes 20 aus der vertikalen Lage heraus. Hierdurch wird der Steuerschalter 56 betätigt und unterbricht die Weiterfahrt. Bei einem Absenken des Laufwagens verläßt auch der vorauseilende Arm 46 mit der Rolle 54 den Teilabschnitt 24 des Mastes 20, wodurch die Auslenkkräfte aufgehoben werden und der Mastabschnitt 24 seine Vertikalposition wieder einnimmt. Damit ist sichergestellt, daß das Lastaufnahmemittel 18 nicht in einen Teilabschnitt 24 des Mastes 20 einfahren kann.If the carriage is on an unsecured mast section 24 approaches, presses the roller 54 under the action the force of the spring 52 the section 24 of the mast 20th from the vertical position. This will make the control switch 56 actuates and interrupts the onward journey. At a lowering of the carriage also leaves the leading one Arm 46 with the roller 54 the section 24 of Mastes 20, whereby the deflection forces are canceled and the mast section 24 resumes its vertical position. This ensures that the load handler 18 do not move into a section 24 of the mast 20 can.

Claims (9)

  1. A building hoist having a tower (20), which is erected substantially vertically, consists of three booms (26, 30, 32) braced with one another, and can be formed by several portions (24) connectable to one another, and also having a bogie truck guided via a toothed rack (28) and movable between a loading position and an unloading position,
    characterised in that the bracing of just one side face of the tower (20) consists of substantially trapezoidal plates (34), the parallel edges of which are welded to the booms (26, 30),
    and in that the toothed rack (28) is welded to a boom (26) to convey the load lifting means (18) in the plane of the plates (34).
  2. A building hoist according to Claim 1,
    characterised in that the cross section of the boom (26) welded to the toothed rack (28) has a rectangular construction, whereas the remaining two booms (30, 32) are in each case made from a circular tube.
  3. A building hoist according to one of Claims 1 or 2,
    characterised in that the plates (34) are provided with clearances (40).
  4. A building hoist according to Claim 3,
    characterised in that the clearances (40) have a circular construction.
  5. A building hoist according to one of the preceding Claims,
    characterised in that the plates (34) are provided with bevelled edges (38).
  6. A building hoist according to one of the preceding Claims,
    characterised in that a leading arm (46), which under the pressure of a spring (52) abuts the inner side of the tower (20) and is connected to a mechanism (56) for interrupting the control current, is pivoted at the load lifting means (18).
  7. A building hoist according to Claim 6,
    characterised in that a roller (54) is pivoted at the leading end of the arm (46).
  8. A building hoist according to one of the preceding Clams,
    characterised in that the arm (46) consists of a rocker lever, which is under the pressure of a spring (52).
  9. A building hoist according to one of the preceding Claims,
    characterised in that the arm (46) is swivel mounted around a bolt (50), which passes through a cover plate (45) on the side of the bogie and having a U-shaped cross section.
EP95910407A 1994-02-22 1995-02-22 Building elevator Expired - Lifetime EP0746524B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19944405651 DE4405651C1 (en) 1994-02-22 1994-02-22 Elevator or lift used on building site
DE4405651 1994-02-22
PCT/DE1995/000225 WO1995022501A1 (en) 1994-02-22 1995-02-22 Building elevator

Publications (2)

Publication Number Publication Date
EP0746524A1 EP0746524A1 (en) 1996-12-11
EP0746524B1 true EP0746524B1 (en) 1998-05-27

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EP95910407A Expired - Lifetime EP0746524B1 (en) 1994-02-22 1995-02-22 Building elevator

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EP (1) EP0746524B1 (en)
AT (1) ATE166631T1 (en)
DE (2) DE4447424C2 (en)
WO (1) WO1995022501A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627549A1 (en) * 1995-09-22 1997-03-27 Paul Lingen Triangular-section mast used with building scaffolding
DE19545453A1 (en) * 1995-12-06 1997-06-12 Paul Lingen Frame mast or moving platform for lift
DE29802092U1 (en) * 1998-02-07 1998-10-08 Hermann Steinweg GmbH & Co KG Baumaschinenfabrik, 59368 Werne Construction elevator
EP4261177A1 (en) 2022-04-13 2023-10-18 Electroelsa S.r.l. Safety device for a lifting apparatus, lifting apparatus, lifting system and associated safety control method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2123132C2 (en) * 1971-05-11 1982-07-15 Wilhelm Layher GmbH, 7129 Güglingen Conveying device on scaffolding, in particular metal scaffolding
IT1141853B (en) * 1980-03-19 1986-10-08 Condecta Macchine Edili Srl RETICULAR STRUCTURE WITH POLYGONAL ELEMENTS FOR TRUSSES, PARTICULARLY OF SELF-ASSEMBLING TOWER CRANES
AT382592B (en) * 1984-03-13 1987-03-10 Ebbs & Radinger Maschhandel LIFT FOR A CONSTRUCTION LIFT
DE3843996A1 (en) * 1988-12-27 1990-06-28 Zeppenfeld Aloys Gmbh MAST FOR A RACK ELEVATOR

Also Published As

Publication number Publication date
DE59502339D1 (en) 1998-07-02
ATE166631T1 (en) 1998-06-15
DE4447424C2 (en) 1996-05-15
EP0746524A1 (en) 1996-12-11
DE4447424A1 (en) 1995-08-24
WO1995022501A1 (en) 1995-08-24

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