EP0693453B1 - Building site lift - Google Patents

Abstract

The lift has a lift mask along which the lift cage (10) is moved in the vertical direction, with displacement of the lift cage in the horizontal direction to and from the building (4), or the scaffolding structure (3), when the required level is reached. The lift cage is displaced horizontally along a horizontal guide rail, with the door at the front of the lift cage prevented from being opened until the lift cage reaches the horizontal end position. Pref. an end switch is operated when the latter is reached. <IMAGE>

Description

The invention relates to a construction hoist Specified genus specified in DE-AS 1 082 021 is.

The generic document discloses a construction elevator with a load carrier designed as a conveyor shell, the horizontally movable on a vertically along the elevator mast movable boom is arranged. This well-known Construction hoist is basically suitable, loads in bring different building or scaffolding days, and because of the horizontal movability the conveyor bowl on the respective floor itself. A disadvantage with this construction hoist, on the one hand, it is due to its design based solely on security regulations is not suitable as a passenger elevator and secondly, that it requires a relatively large amount of space, because a horizontally wide cantilever is required along which the conveyor bowl is horizontal can be moved.

It is stated in this document that the there Ausfahrwerk can also be designed differently, namely, that the boom is not above the conveyor bowl there, but is located below it. This however, does not change the considerable space requirement of the Cantilever, which is particularly useful for vertical installation and Departing is annoying because, to ensure trouble-free opening and closing Ensure departure, the elevator mast of the construction elevator there at a considerable horizontal distance from the scaffolding or must be arranged by the building, which is a safe Anchoring the construction elevator to the scaffolding or building is difficult.

In general, it should be noted that such construction lifts mainly used as rack or cable lifts on construction sites be made to people and material in different Transport levels. These elevators essentially point an elevator mast that is designed for easy assembly and height adjustment to the respective application is preferred composed of individual mast elements, and one Elevator car that can be moved up and down on the mast can. This elevator car can be a passenger car or act as a load platform or the like. The elevator mast is at statically required intervals appropriately anchored to the scaffold or building.

There are also known construction elevators whose elevator cars are in a distance of a few centimeters in front of the scaffold or up and down the building. For security reasons Considerations is a prerequisite for such a construction elevator, that all floors of a scaffold in the driving area of the construction elevator must be secured in full by gates, to prevent accidents caused by the passing elevator car. The same applies to all door and window openings, if the construction elevator is directly in front of a house front up and down. However, such security gates are very elaborate and expensive, since they cover the entire height a scaffolding day or a window or door opening in Buildings must extend through an electrical or mechanical locking are to be designed so that a gate can only be opened if the elevator car is exactly located in front of the respective floor. Add to that the whole Travel path of the elevator car opposite the scaffold or the building must be secured, for example in protection of 20 scaffolding days in a 40 m high building required.

To this considerable effort in terms of material and Construction lifts have already become known to reduce labor costs, those with a safety distance of, for example Set up 0.5 m in front of the scaffolding or the building become. A single scaffolding day is then sufficient approx. 1 m high railing, as is common with any scaffold, or a simple gate at the same height. The problem with this Construction hoists, however, is that this safety distance between the elevator car and the scaffolding or the building must be bridged to enter the cabin or to be able to load and unload. For this are the elevator cars building lifts of this type are provided with an attached ramp, which can be folded out with the help of ropes or chains or is lockable. However, this is particularly cumbersome and dangerous when opening or closing the Ramp must take place from the scaffolding or building, as with pure freight lifts is always the case. On top of that also the sides of such a ramp at an appropriate height must be secured by railings. All of this is very complicated, time-consuming and considering the great heights too dangerous.

In addition to the state of the art, the CH-C 67 303 and DE-A 289 747 A5.

The object of the invention is a generic construction hoist to evolve in such a way that it has no costly security facilities above the scaffolding or building height A perfect safe entry and exit even at high altitudes Getting out possible and also as space-saving as possible and compact design, making it easy and safe to install is.

This task is done with a construction elevator with the features of the current claim 1 solved. Different from the The load carrier is the generic state of the art not designed as a conveyor bowl, but as an elevator car, which can only be entered or exited if the cabin is in its horizontal end position, so that dangers for the operating personnel when entering and Get out of the car or reliably avoided when loading and unloading be without expensive security devices on the scaffold itself would be required. Furthermore is the entire construction of the construction elevator itself stable and safe because the elevator mast is close to the building or Set up the scaffolding and simply anchor it accordingly can be because of the horizontal movement the elevator car is not vertically movable on the elevator mast Boom is required, just a small one Carriage against which the elevator car itself is horizontal be moved with their rail-like guidance can. There is when the elevator car goes up and down thus no horizontal towards the scaffolding over the cabin outstanding parts, the cabin itself is at next to the scaffold or the front of the building.

Obviously, there is no need for such a device Construction elevator all the disadvantages described above. It is not complex protection of the entire scaffold or building height necessary because the elevator car moves up and down at a sufficient safety distance can. The elevator car is located in the desired floor height, the cabin can be moved horizontally Move scaffolding or building floor so that no one elaborate ramps or the like would have to be secured. Rather is after opening the cabin door and a security gate on the scaffolding or building a completely safe inspection or unloading of the elevator car guaranteed.

Further refinements of the invention result from the Subclaims, it being particularly expedient that horizontal movement of the elevator car compared to the Travel carriage limited in both directions by means of limit switches to train. This ensures that even at improper handling of the elevator car in the horizontal Do not move against the scaffolding or the front of the building can encounter or in the direction of the elevator mast far from the scaffolding or the building.

It is preferable to limit the horizontal Movability limit switches provided on both sides, their positioning advantageously adaptable to the respective application is.

A particularly simple and advantageous design is characterized in that the elevator car via a track and rollers with the carriage connected is.

In a further advantageous embodiment it is provided that an adjustment device for the horizontal movement of the elevator car is provided, for example as electrical adjustment device with a spindle can be. Alternatively, a rack, a hydraulic or pneumatic connection or another suitable connection can be provided.

Fig. 1

eine Draufsicht eines vor einem Gerüst stehenden Bauaufzuges mit Aufzugsmast und dessen Verankerung zum Gebäude,

Fig. 2

eine Seitenansicht von rechts auf den Bauaufzug nach Fig. 1,

Fig. 3

eine Seitenansicht von unten auf den Bauaufzug nach Fig. 1 und

Fig. 4

ein Detail einer elektromechanischen Verschiebeeinrichtung in der gleichen Darstellung wie in Fig. 3.

The invention is explained below with reference to the drawing, for example. This shows in:

Fig. 1

a plan view of a building elevator with a mast standing in front of a scaffold and its anchoring to the building,

Fig. 2

2 shows a side view from the right of the construction hoist according to FIG. 1,

Fig. 3

a side view from below of the construction elevator according to Fig. 1 and

Fig. 4

a detail of an electromechanical displacement device in the same representation as in Fig. 3rd

A construction elevator according to the invention initially has an elevator mast 1, which is used to adapt to different building or scaffold heights and for easier portability consists of several interconnectable sections. This mast 1 is statically required Distances through anchoring pipes 2 with a scaffold 3 or connected to a building 4. The elevator mast 1 is above it entire length equipped with a rack 5.

The construction hoist also points vertically upwards and down along the rack 5 of the elevator mast 1 movable, preferably provided with casters 6 on. This carriage 6 is with a gear motor 7 equipped, the gears, not shown can drive which in the rack 5 of the elevator mast 1 intervene. As a result, the carriage 6 is in vertical direction along the elevator mast 1 movable.

With the carriage 6 is on a track 8 and Castors 9 an elevator car 10 of the construction elevator horizontally slidably connected. The horizontal shift takes place, for example, by means of an electrical adjustment device 11 with a spindle 12, as best shown in FIG. 4 emerges. The horizontal shift between the elevator car 10 and the carriage 6 can of course also take place in other ways, for example via a rack, hydraulic, pneumatic or any other appropriate way.

After approaching a desired level of scaffold 3 or of building 4 or after actuating a suitable one, not Floor limit switch shown, the horizontal travel the elevator car 10 released. By pressing one suitable elevator push button (not shown) 10 towards or from the scaffolding 3 or building 4 Scaffold 3 or building 4 moved away. The horizontal route the elevator car 10 towards the scaffold 3 or Building 4 is preferably delimited by a limit switch 13, the exact, for example by means of a plunger Distance to scaffold 3 or building 4 ensures. On second limit switch, not shown, at the other end of the travel path fixes the other end position of the elevator car 10 and only gives after actuation, i.e. positioning the elevator car 10 in the position in which it a sufficient distance from the scaffolding 3 or building 4 has the upward or downward movement of the carriage 6 and thus the elevator car 10 free.

The elevator car 10 is on its end, the scaffold 3 or building 4 facing end with a cabin gate 14 provided and also has each scaffolding days or each Building floor a preferably electrical and mechanical lockable gate 15 on. The control is made so that the cabin gate 14 can only be opened when the elevator car 10 immediately in front of the scaffolding 3 or building 4 stands for what is easy through the limit switch 13 can be realized. Only then can this be done electrically and mechanically locked gate on scaffold 3 or building 4 can be opened.

Of course, the invention is not based on the illustrated embodiment limited. So in particular the electrical adjustment device 11 for horizontal Displacement of the elevator car 10 with respect to the carriage 6 also replaced by another displacement device be the rolling or sliding elements between the elevator car 10 and the carriage 6 can laterally or be attached below the elevator car 10.

It can also be particularly advantageously provided that the elevator car 10 after reaching a vertical Rest position of the carriage 6 automatically horizontal is designed to be movable towards the scaffold 3, d. H. that then when the carriage 6 reaches a set of days has a certain time in rest position on this floor is left, the elevator car 10 to the scaffold automatically 3 is moved horizontally without the operator an additional switch can be operated got to.

Claims (5)

1. A building hoist comprising a hoist tower (1) which can be erected vertically and a travelling cradle (6) which is displaceable in a vertical direction upwardly and downwardly along the hoist tower (1) and on which a load carrier (10) is arranged displaceably horizontally towards the front of a building or a scaffolding into a horizontal limit position and back out of said limit position, characterised in that the load carrier is in the form of a hoist cabin (10) with peripherally closed side walls, wherein arranged at least in the side wall which is towards the front of the building or the scaffolding is a cabin door (14) which is provided with a control in such a way that opening of the cabin door (14) is possible only in the horizontal limit position of the hoist cabin (10), and that provided at a side wall of the hoist cabin (10) is a rail-like guide (8) which limits the horizontal displaceability of the hoist cabin (10), for connection to the travelling cradle (6).
2. A building hoist according to claim 1 characterised in that the horizontal displaceability of the hoist cabin (10) with respect to the travelling cradle (6) is adapted to be limited in both directions by means of limit switches (23).
3. A building hoist according to claim 1 or claim 2 characterised in that the rail-like guide of the hoist cabin (10) is in the form of a travel rail (8) and corresponding rollers (9) are provided on the travelling cradle (6).
4. A building hoist according to claim 1 or one of the following claims characterised in that an adjusting device is provided for horizontal displaceability of the hoist cabin (10).
5. A building hoist according to claim 1 or one of the following claims characterised in that the hoist cabin (10) is adapted to be displaceable automatically horizontally relative to the scaffolding (3) after a vertical rest position of the travelling cradle (6) is reached.

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