EP0376167B1 - Mast für einen Bauaufzug, insbesondere einen Zahnstangenaufzug - Google Patents

Mast für einen Bauaufzug, insbesondere einen Zahnstangenaufzug Download PDF

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Publication number
EP0376167B1
EP0376167B1 EP89123687A EP89123687A EP0376167B1 EP 0376167 B1 EP0376167 B1 EP 0376167B1 EP 89123687 A EP89123687 A EP 89123687A EP 89123687 A EP89123687 A EP 89123687A EP 0376167 B1 EP0376167 B1 EP 0376167B1
Authority
EP
European Patent Office
Prior art keywords
mast
honeycomb elements
pylon
pylon according
honeycomb
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
EP89123687A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0376167A3 (en
EP0376167A2 (de
Inventor
Ewald Dipl.-Ing. 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.)
Aloys Zeppenfeld & Co KG GmbH
Original Assignee
Aloys Zeppenfeld & Co KG 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
Application filed by Aloys Zeppenfeld & Co KG GmbH filed Critical Aloys Zeppenfeld & Co KG GmbH
Priority to AT89123687T priority Critical patent/ATE86940T1/de
Publication of EP0376167A2 publication Critical patent/EP0376167A2/de
Publication of EP0376167A3 publication Critical patent/EP0376167A3/de
Application granted granted Critical
Publication of EP0376167B1 publication Critical patent/EP0376167B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B66B9/187—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 with a liftway specially adapted for temporary connection to a building or other structure

Definitions

  • the invention relates to a mast according to the preamble of claim 1.
  • the stiffening struts arranged between the corner supports consist of polygonal plates, for example in the form of isosceles or isosceles trapezoids, which can be provided in a different arrangement to one another and on each of them Side are connected to the corner supports, for example by riveting, screwing or welding.
  • this known half-timbered mast is expressly intended for cranes, in particular for tower cranes, in order to fulfill a very special function by means of a specially designed strut, which however differs considerably and substantially from the function provided according to the invention.
  • Such torsional forces which act at any point along the length of the mast of such a tower crane in the circumferential direction, lead to the nodes, i. H. at the junctures between the bracing and the corner support, at dangerous point loads that are undesirable and generally cannot be controlled.
  • the mast which serves to guide the driving platform or the basket to train that this consists of suitable profiles, for example double T-bars or two screwed or welded U-bars. It is also known to use aluminum profile masts or so-called ladder masts, in which the guide rail consists of angle iron, U-iron or tubes and is connected to the adjacent corner supports via crossbars. If they are used as vertical masts, these masts are usually to be anchored to the building at a distance of 3 m each.
  • free-standing masts which usually have heights of up to 9 m, those are used which have a triangular, rectangular, square or trapezoidal shape exhibit.
  • corresponding struts are required, which are arranged between two adjacent belts.
  • the struts in the case of small elevator masts partly consisting of round bars, while in the case of larger elevator masts, angle irons or pipes are used as struts.
  • the respective mast straps, ie the corner supports consist of angle iron, U-iron, square tube or round tube.
  • the loading conditions behave quite differently in a rack and pinion elevator, in which the basket guided on the two front belts of the mast is raised via a rack arranged on the one mast belt and a drive pinion meshing with it and connected to the basket.
  • the load exerted here only affects the mast on one side. So there are large local bending forces that must be absorbed by appropriately trained struts, but without the overall weight of the mast being increased disadvantageously.
  • the invention is therefore based on the object of designing the mast of the generic type in such a way that it has great flexural rigidity with simple, inexpensive production and at the same time allows the usual anchoring distance to be increased significantly.
  • the arrangement is such that the struts consist of polygonal, flat honeycomb elements in the form of disks. These are provided in pairs facing each other between two adjacent belts and arranged one above the other in the relevant belt plane.
  • these honeycomb elements which serve to reinforce and which are arranged in all belt levels consist of trapezoidal sheets.
  • the weld seam can be provided either continuously or in a punctiform manner.
  • the honeycomb elements are connected to one another on their shorter side facing each other.
  • an inserted insert plate, a flat iron or the like is advantageously used, which further improves the stability and the power transmission.
  • honeycomb elements have bevels on their free edges, which can optionally be connected to one another at the points where they meet, in particular by welding. This not only results in a larger one Stiffness, but it also achieves better corrosion protection. In addition, these bends are used to prevent accidents.
  • the individual belts are continuously supported over their entire length, so that they thus have a more favorable stability behavior.
  • the resulting local loads on the guide belts are transmitted well by the honeycomb sheets due to the disk effect thereby exerted, so that overall the local bending load on the guide belts is reduced or even completely eliminated.
  • the load-bearing capacity of the mast straps can be increased by up to 100% compared to those with conventional struts, while the weight of the mast remains the same.
  • the rear mast belt opposite the basket guide belts is also continuously supported in the case of a mast designed as a three-belt mast. This also significantly improves the stability behavior and avoids the risk of kinking. The local bending moments are further reduced or even completely eliminated as a result of the connection for anchoring.
  • the invention achieves the particularly important advantage that the honeycomb-arranged sheet metal disks have a combined effect, namely a static load-bearing effect as a shear field due to the effect exerted by the sheet metal disks in conjunction with a truss effect due to the intended bending of the free edges of the sheet metal disks.
  • a static load-bearing effect as a shear field due to the effect exerted by the sheet metal disks in conjunction with a truss effect due to the intended bending of the free edges of the sheet metal disks.
  • this also results in a significant increase in the shear strength.
  • the individual honeycomb elements are each additionally stabilized with at least one bead. This further increases the load capacity and at the same time reduces the risk of bulging.
  • honeycomb elements can be fixed to the belts by means of long, smooth weld seams is of particular importance from a manufacturing point of view, which was not possible with the previous truss constructions.
  • the greater anchoring distance achieved due to the great flexural rigidity of the mast according to the invention is very advantageous because rack and pinion lifts are used in particular for renovation and refurbishment work on buildings. In such work, the operating times are often shorter than when working on new buildings, so that a larger anchoring distance in connection with the resulting shorter time expenditure for mast anchoring is particularly advantageous.
  • the respective building facade is less damaged than before.
  • the design according to the invention makes it possible in an unforeseeable manner to considerably increase the anchoring distances in the mast of the construction hoist, but at the same time also to load the mast more heavily, since this has an increased bending stiffness.
  • the mast 1 shown which is provided for a rack and pinion elevator, is designed as a three-belt mast, which has a triangular cross section with accordingly three corner supports 2, 3, 4.
  • the two front corner supports 2, 3 and mast straps are cross-sectional formed as a square tube and serve to guide a basket, not shown. Its drive takes place with the aid of at least one drive pinion, which meshes with a toothed rack 5, which is attached to the rear of the left guide belt 2 and extends along the latter.
  • the rear mast belt 4 is designed in the manner shown in FIG. 3 as a round tube, the size of the cross section corresponding to that of a conventional scaffold tube, so that it can be anchored to the building by means of common scaffold clamps.
  • each of the belt levels formed by two adjacent mast belts 2, 3, 4 is stiffened by struts.
  • These struts consist of polygonal, flat honeycomb elements 6 in the form of sheet metal disks, which are provided in pairs facing each other between two adjacent belts 2, 3 and 3, 4 and 2, 4, respectively.
  • the honeycomb elements 6 are arranged in pairs in the respective belt plane one above the other, so that they extend in the desired manner over the entire length of each belt plane.
  • the honeycomb elements 6 each consist of a trapezoidal sheet, which accordingly has two mutually parallel sides - a shorter and a longer side - and mutually inclined side edges in the form of free edges. At these free edges of the honeycomb elements 6 largely rectangular bends 7 are provided in order to further improve the stability and the buckling behavior.
  • the arrangement of the honeycomb elements 6 is such that they face each other in pairs in the manner shown, the longer side of the honeycomb elements 6 being fixed to the mast belt 2, 3 4 in question and the shorter side facing each other.
  • connection of the honeycomb elements 6 both to one another and to the respective mast straps 2, 3, 4 takes place by means of welding, a correspondingly long weld seam 8 being provided in the embodiment according to FIGS. 1 to 3, while in the modified embodiment according to FIG. 4 spot welds 9 ensure the connection.
  • an insert plate 10 a small flat iron or the like is inserted between the mutually facing shorter sides of each pair of honeycomb elements 6 before the welded connection is carried out.
  • the stability is further increased, so that the forces occurring can be easily transferred from the bevel 7 of one sheet 6 via the web 10 to the bevel 7 of the other sheet 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Types And Forms Of Lifts (AREA)
  • Jib Cranes (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
EP89123687A 1988-12-27 1989-12-21 Mast für einen Bauaufzug, insbesondere einen Zahnstangenaufzug Expired - Lifetime EP0376167B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89123687T ATE86940T1 (de) 1988-12-27 1989-12-21 Mast fuer einen bauaufzug, insbesondere einen zahnstangenaufzug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843996A DE3843996A1 (de) 1988-12-27 1988-12-27 Mast fuer einen zahnstangenaufzug
DE3843996 1988-12-27

Publications (3)

Publication Number Publication Date
EP0376167A2 EP0376167A2 (de) 1990-07-04
EP0376167A3 EP0376167A3 (en) 1990-07-25
EP0376167B1 true EP0376167B1 (de) 1993-03-17

Family

ID=6370334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123687A Expired - Lifetime EP0376167B1 (de) 1988-12-27 1989-12-21 Mast für einen Bauaufzug, insbesondere einen Zahnstangenaufzug

Country Status (3)

Country Link
EP (1) EP0376167B1 (enrdf_load_stackoverflow)
AT (1) ATE86940T1 (enrdf_load_stackoverflow)
DE (2) DE3843996A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113152A1 (de) * 1991-04-23 1992-10-29 Langer Ruth Geb Layher Aufzug fuer baumaterialien, geruestelemente und geruestmontagen
DE4405651C1 (de) * 1994-02-22 1995-08-10 Zeppenfeld Aloys Gmbh Bauaufzug
DE4447424C2 (de) * 1994-02-22 1996-05-15 Zeppenfeld Aloys Gmbh Sicherheitseinrichtung für einen Bauaufzug
DE19627549A1 (de) * 1995-09-22 1997-03-27 Paul Lingen Mast für ein Baugerüst oder einen Baulift
DE29705009U1 (de) * 1997-03-19 1997-06-26 Theodor Klaas GmbH & Co KG, 59387 Ascheberg Dachdeckerkran mit modular aufgebauten Teleskopschüssen
SE519047C2 (sv) * 2001-05-28 2003-01-07 Goete Lindberg Med A Innovatio Anordning vid en stolpe
CN102328861A (zh) * 2011-06-20 2012-01-25 吴江市德菱电梯配套有限公司 电梯对重

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1498124A (en) * 1922-06-06 1924-06-17 Bristol Steel Corp Metal structure
US3112015A (en) * 1960-02-15 1963-11-26 Beatty Bros Ltd Mast construction
US3371458A (en) * 1966-06-30 1968-03-05 Atlantic Res Corp Structural unit
AT292966B (de) * 1966-10-12 1971-09-27 Friedrich Freimueller Aus Schüssen aufgebauter Gittermast
AT315419B (de) * 1971-12-03 1974-05-27 Alois Krasser Rohrförmiger Stahlmast für Bauaufzüge
FR2183424A5 (enrdf_load_stackoverflow) * 1972-05-05 1973-12-14 Perray Marc
IT1141853B (it) * 1980-03-19 1986-10-08 Condecta Macchine Edili Srl Struttura reticolare con elementi poligonali per traliccio,particolarmente di gru a torre automontante
FR2495275B1 (fr) * 1980-12-01 1986-02-07 Lerc Structure en treillis, en particulier mat-support d'antenne
AT369479B (de) * 1980-12-02 1983-01-10 Hulek Anton Gittermast
FR2549885B1 (fr) * 1983-07-29 1986-01-24 Thomson Csf Pylone autostable de section constante
DE3415265A1 (de) * 1984-04-24 1985-10-31 Hermann Steinweg GmbH & Co KG Baumaschinenfabrik, 4712 Werne Aufzug, insbesondere bauaufzug

Also Published As

Publication number Publication date
DE58903820D1 (de) 1993-04-22
DE3843996A1 (de) 1990-06-28
DE3843996C2 (enrdf_load_stackoverflow) 1993-09-09
EP0376167A3 (en) 1990-07-25
ATE86940T1 (de) 1993-04-15
EP0376167A2 (de) 1990-07-04

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