EP0159467A2 - Plate-forme pour élever des personnes - Google Patents

Plate-forme pour élever des personnes Download PDF

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Publication number
EP0159467A2
EP0159467A2 EP85100609A EP85100609A EP0159467A2 EP 0159467 A2 EP0159467 A2 EP 0159467A2 EP 85100609 A EP85100609 A EP 85100609A EP 85100609 A EP85100609 A EP 85100609A EP 0159467 A2 EP0159467 A2 EP 0159467A2
Authority
EP
European Patent Office
Prior art keywords
work platform
aerial work
platform according
rollers
stand
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
EP85100609A
Other languages
German (de)
English (en)
Other versions
EP0159467B1 (fr
EP0159467A3 (en
Inventor
Dieter Prommer
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.)
Lissmac Maschinenbau GmbH
Original Assignee
Lissmac Maschinenbau 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 Lissmac Maschinenbau GmbH filed Critical Lissmac Maschinenbau GmbH
Priority to AT85100609T priority Critical patent/ATE48270T1/de
Publication of EP0159467A2 publication Critical patent/EP0159467A2/fr
Publication of EP0159467A3 publication Critical patent/EP0159467A3/de
Application granted granted Critical
Publication of EP0159467B1 publication Critical patent/EP0159467B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks

Definitions

  • the invention relates to an aerial work platform, in particular a work platform for construction workers, with a height-adjustable work platform connected to a frame.
  • the present invention is therefore based on the object of providing an aerial work platform which is easy to handle and which is suitable for many purposes in a robust construction, the work required being capable of being carried out at the desired height at all times.
  • the aerial work platform according to the invention is very simple and robust in construction and gives the worker the opportunity to always work at the desired height.
  • only two cross members and two stands are required, the cross members being easily connected to one another by longitudinal members.
  • the longitudinal beams can be beams or boards.
  • a vertically extending rotatable spindle, threaded rod, toothed rack or the like can be arranged on the stand or cooperates indirectly on the cross member or support member attached.
  • height adjustment can also be achieved by other measures, such as a roller chain, a wire rope or the like.
  • the spindle, threaded rod or the drive wheel working together with a rack can be driven in any way, e.g. by an electric motor that can be activated by the worker by means of an appropriate actuation switch or button. Manual operation via a hand crank is also possible. Operation under load is possible, whereby the worker can remain on the platform.
  • rollers can run in the interior of the stands in lateral raceways, the raceways being bordered laterally by guide walls for lateral guidance of the rollers.
  • the rollers can also be guided between the two columns. With this type of roller guide, they can roll off in a largely trouble-free manner and without the risk of injury.
  • each support part For better guidance, two casters lying vertically one above the other at a distance can be mounted in each support part.
  • the support member can be pivoted together with the cross member about the axis of a roller.
  • the cross beams In order for there to be a sufficient working depth, the cross beams must have a sufficient width. So that the transport of the aerial work platform is now facilitated and also its storage when not in use, a reduction in its width can be achieved by the measure according to the invention.
  • the axes of the rollers lie horizontally, so that the cross members can be pivoted about this axis, with a corresponding reduction in width.
  • both cross members of the work platform can be synchronized via raise or lower a motor or manual drive together, whereby both stands can be connected to each other via a cross shaft.
  • the cross shaft can be designed as a telescopic propeller shaft for length compensation or for adjusting the distance between the two stands. The same applies to the side members.
  • a very advantageous development of the invention is that transport wheels or transport rollers are arranged on the cross member or the support part on a frame, which sit in a lower position of the work platform and raise the two columns or the stand.
  • This configuration ensures that it does not have to be dismantled separately to move or transport the aerial work platform to another location. Possibly. the aerial work platform can be lifted so that the two columns are clear of the ground even under load. For this purpose, the operator may not even have to descend from the work platform. The entire aerial work platform can then be moved in the horizontal direction. After the crossbars have been raised again, the columns are seated again and the crossbars are raised again together with the transport wheels arranged on them. In this way you can continue working immediately without any special modifications.
  • Another very advantageous embodiment of the invention is that it can be expanded in a modular manner, for which purpose the cross shaft has a connecting part at at least one end and two longitudinal beams can be fastened to at least one stand or a cross member on each side.
  • any aerial work platforms can be connected to one another, with only a single drive being required. From this drive, all extension parts are then connected to the cross shaft by a corresponding connection and thus raised or lowered synchronously.
  • the aerial work platform according to the invention can also be easily moved with a crane. For this it is only necessary that the stands or columns have suspension links at their upper ends and that a longitudinal member can be fastened centrally above and a second longitudinal member centrally below between the two stands or columns for transport.
  • the aerial work platform has two stands 1 arranged at a distance from one another, each of which has a cross member 2.
  • the cross members have openings at their ends into which the longitudinal members 3 can be inserted (FIG. 2) or hooks into which the longitudinal members 3 can be hung with eyelets (FIG. 6). In this way, there is a rectangular frame for the work platform on which formwork boards or the like can be placed.
  • the height adjustment of the cross member 2 is achieved according to the embodiment of Figures 1-4 by a spindle 4 in the associated stand 1.
  • a motor 5 with a gear 6 is provided in the base of a stand.
  • the torque of the motor 5 is transmitted synchronously to both spindles 4 via a cross shaft, which is designed as a telescopic propeller shaft 7.
  • gears 8 and 9 for forwarding the rotary movement to the spindles 4.
  • Each spindle 4 is provided with a spindle nut 10 which is moved on the spindle 4 by actuation of the motor 5.
  • An enlarged representation is shown in FIG.
  • On the spindle nut 10 is the extended end a shaft journal or an axle 11 attached, the axle being provided with a through hole 12 and thus encompassing the spindle 4 with play.
  • the axis 11 has a recess 13 in the lower region with a bearing surface 14 through which the axis 11 lies snugly on the spindle nut 10. When the spindle nut 10 is displaced, the axis 11 is accordingly also displaced.
  • a roller 15 is fastened on the axis 11 and runs in lateral raceways 16 inside the stand 1 (see in particular FIG. 3).
  • the two stands 1 are provided on their mutually facing sides with a vertical longitudinal slot 22.
  • the remaining part of the front wall of the stand and two partition walls 23 and 24 inside the stand form side guide walls for the roller 15, whereby lateral guidance is achieved.
  • a second impeller or a second roller 25 is arranged below the roller 15 or the axis 11, which also runs in the raceway 16.
  • the axis 18 of the second roller 25 is connected to the axis 11 of the roller 15 by a connecting part 17, for example a connecting strap.
  • the axis 11 is mounted in a support part 19, while the axis 18 is mounted indirectly in the support part 19 via a threaded bolt 20.
  • the threaded bolt 20 is screwed into a threaded bore in the front end face of the axle 18 and is pierced through a bore in the support part 19 plugged.
  • the threaded bolt 20 is provided with a handle 21, by means of which the connection of the axis 18 to the supporting part can be released quickly and easily.
  • the support member 19 is connected to the associated cross member 2, e.g. by a weld seam and at the same time represents a stiffening member for the cross member 2. For this purpose, it has a correspondingly wide upper edge.
  • the support member 19 and thus also the cross member 2 are thus guided in the stand 1 via the axis 11, the rollers 16 and 25 and the spindle nut 10. If you release the threaded bolt 20, the cross member 2 together with the support member 19, e.g. 2 in the direction of the arrow according to FIG. 2 about a horizontal axis, namely about the longitudinal axis of the axis 11. In this way, the width of the aerial work platform is reduced for transport or storage purposes.
  • One of the two stands 1 or possibly both can be provided with wheels 26 which, if necessary, can also be designed to be retractable or pivotable. Such configurations are generally known, which is why they are not discussed in more detail here.
  • FIGS. 5-9. Another embodiment of the aerial work platform with a different drive is shown in FIGS. 5-9. The same parts are provided with the same reference numerals.
  • a frame 28 projecting downwards is arranged on the crossmember at its outer ends on each side, in which a plurality of transport wheels or transport rollers 29 are mounted. If the working platform, ie the two cross members 2 and the longitudinal members 3, are completely lowered via the drive, the transport rollers 29 sit on the floor. With a further lifting, the two stands 1 are raised and are thus clear of the ground. In this way, the entire aerial work platform can be moved in the horizontal direction.
  • each stand 1 consists of two columns 32A and 32B, which are arranged in parallel and closely spaced apart and have a substantially rectangular cross section.
  • the rollers 15 and 25, which are designed as profile rollers, run between the two columns. In particular, it can be seen from FIG. 9 that there is also lateral guidance at the same time.
  • the axis 11 of the roller 15 is in turn extended and carries the cross member 2. Via bearing plates 33 and 34, which simultaneously form the gear box, the lower impeller 25 is also mounted.
  • the drive torque for height adjustment is initiated via a drive shaft 35.
  • this drive shaft 35 When driven by a motor, this drive shaft 35 is connected to the motor shaft.
  • a sprocket 36 which is connected via a chain to an upper sprocket 37 arranged on the stand 1 (shown in dashed lines in FIG. 5).
  • the sprocket 37 is driven by a safety crank 38.
  • a pinion 39 which meshes with an intermediate gear 40.
  • the drive wheel 30 On the shaft 41 of the intermediate gear 40 is the drive wheel 30, which meshes with the rack 31.
  • the toothed rack 31 is arranged on the outside of the column 32A and is integrally connected to it or firmly connected to it. If the drive gear 30 is now moved via the safety crank 38 or a drive motor (not shown) via the intermediate gear, the support part 19, which in this case is formed from the gear box with the two bearing plates 33 and 34, moves together with the cross member 2 up or down depending on the direction of rotation.
  • the drive shaft 35 has a connector 42 with which the cross shaft 7, which is designed as a cardan shaft. In this way, the drive gear 30 in the gear box on the other side, ie on the other column 1, is moved synchronously.
  • the gear box is designed in the same way.
  • the cross shaft 7 will also have on the other side a connection piece (not shown) which can be connected to a further transverse shaft of a part of an aerial work platform designed as a connecting part.
  • this connecting part can consist of a further stand 1 with a cross member 2.
  • the two stands 1 can be provided with crane eyelets 43 on their upper side.
  • crossbars will have to be arranged in this case between the two stands 1 in the lower and in the upper area.
  • the longitudinal beams 3 can be used in a simple manner, which are arranged accordingly in the lower and in the upper part between the two stands 1. This is shown in dashed lines in FIG. 5 for the upper region.
  • the two columns 32 which are arranged at a distance from one another, can be connected to one another in the upper region with a horizontal cross piece 45.
  • the cross member 2 or the support member 19 each have an inwardly projecting shoulder 44 on which boards, beams, planks or the like can be placed as a standing surface for the worker.
  • 2 boards can also be placed on the side next to the stands on the cross beams, whereby these can also survive.
  • the cross member 2 can also be stepped if necessary so that the worker can stand lower than the material. 50 cm may be sufficient for this. This lower position compared to the meter storage area makes work even easier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP85100609A 1984-04-21 1985-01-22 Plate-forme pour élever des personnes Expired EP0159467B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85100609T ATE48270T1 (de) 1984-04-21 1985-01-22 Hubarbeitsbuehne.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843415074 DE3415074A1 (de) 1984-04-21 1984-04-21 Hubarbeitsbuehne
DE3415074 1984-04-21

Publications (3)

Publication Number Publication Date
EP0159467A2 true EP0159467A2 (fr) 1985-10-30
EP0159467A3 EP0159467A3 (en) 1987-03-25
EP0159467B1 EP0159467B1 (fr) 1989-11-29

Family

ID=6234146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100609A Expired EP0159467B1 (fr) 1984-04-21 1985-01-22 Plate-forme pour élever des personnes

Country Status (3)

Country Link
EP (1) EP0159467B1 (fr)
AT (1) ATE48270T1 (fr)
DE (1) DE3415074A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111764613A (zh) * 2020-06-19 2020-10-13 四川远大欣程环保工程有限公司 轨道交通工程轨行区内高空设备安装装置及施工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3502002C3 (de) * 1985-01-22 1997-09-04 Lissmac Maschb & Diamantwerkz Hubarbeitsbühne
DE4406987C1 (de) * 1994-03-03 1995-07-06 Paul Lingen Hubgerüst

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1474249A (en) * 1922-07-17 1923-11-13 Ferrero John Adjustable platform
US3169604A (en) * 1963-05-29 1965-02-16 Gerald H Pranger Scaffold
AR195668A1 (es) * 1971-05-10 1973-10-31 Ready Co Andamio modular y plegadizo
US3851728A (en) * 1973-04-11 1974-12-03 Lowell A Williams Scaffold
FR2261387A1 (en) * 1974-02-18 1975-09-12 Petralli Jean Marie Hand operated overhead working platform - winding gear inside cage, guide rollers steady descent, cage carries hooked arms for safety
GB2067512A (en) * 1980-01-16 1981-07-30 Emmerson D Improvements in or relating to platform towers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111764613A (zh) * 2020-06-19 2020-10-13 四川远大欣程环保工程有限公司 轨道交通工程轨行区内高空设备安装装置及施工方法

Also Published As

Publication number Publication date
DE3415074A1 (de) 1985-10-24
EP0159467B1 (fr) 1989-11-29
ATE48270T1 (de) 1989-12-15
EP0159467A3 (en) 1987-03-25

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