DE29509817U1 - Work basket for use on construction sites - Google Patents

Description

Work basket for use on construction sites

The invention relates to a work basket for use on construction sites, in particular for concreting work. The work basket has a floor, a surrounding railing, corner posts and a suspension for securing the work basket to the load hook of a construction crane.

When building structures such as houses, ready-mixed concrete is widely used, which is pumped from the concrete mixer to the place of use via hose boom pumps. At the place of use, the end of the hose is held by two assistants. Since the concrete is pumped by piston pumps, the concrete hose transmits the piston impacts, so that strong blows occur at the end of the concrete hose. The subsequent compacting, screeding and smoothing of the fresh concrete is also very laborious and physically demanding.

The invention is based on the object of simplifying concreting work.

20

Mönchen - Bogenhausen Poschingerstraße 6

Phone: +49-89-99 89 04-0

5 23 992 (abitz d)

•Fax*(ji &*m - automat,):
+49-89-98 40 37

Telegram·.

Chemindus Munich

According to the invention, this object is achieved by a work basket of the type mentioned at the outset, which has a device for guiding a concrete pump hose.

Preferably, the guide for the concrete pump hose is provided with a splash guard. The work basket can also accommodate an internal vibrator and be equipped with smoothing boards and a power trowel on its underside.

&iacgr;&ogr; Preferably, the concrete pump hose is guided vertically from above in the middle of the work basket. To prevent the work basket from being swung to the side by the weight of the concrete hose, an adjustable suspension is preferably provided for setting up the work basket in a horizontal position.

The work basket according to the invention is particularly suitable for concreting work in which the concrete hose is not guided over a mast, but is held by the construction crane that is generally present at the construction site anyway.

An embodiment of the invention is explained below with reference to the drawing.

Fig. 1 the work basket in perspective view, Fig. 2 the work basket in vertical section; Fig. 3 the work basket in horizontal section and

Fig. 4 the vibration damper for the concrete hose

with a guide for the concrete pump hose.

Fig. 1 shows a work basket 10, which has a grating 12 as a floor, vertical corner posts 14 and an adjustable suspension 16. The grating posts 12 are up to

• * 9*

I · * 9*

a height of 90 cm by a railing 18. In the railing 18 there is a door (not shown) so that the work basket can be entered by one person.

A concrete pump hose 20 is guided centrally through the adjustable suspension 16 and is led downwards out of the work basket 10 through a central opening in the grating 12. The concrete pump hose 20 is guided up to approximately the height of the railing 18 above the grating 12, whereby

&iacgr;&ogr; it runs within a shaft 22. At the top of the shaft 22, the concrete pump hose 20 is held in a vibration damper 24, and above the vibration damper 24 there is a splash guard 26. There is sufficient clearance between the shaft 22 and the railing 18 so that there is a walkway for one or two people in the work basket 10.

An internal vibrator 30 is also provided in the adjustable suspension 16, the vibrating tube 32 of which is also led downwards through the shaft 22 and the grating 12. Fastening devices for skidding boards 34 and a wing smoother 36 are provided on the underside of the grating 12.

The work basket 10 is used for concreting in such a way that it is held on the load hook of a building crane above the surface to be concreted, e.g. floor slab. The work basket 10 is set up horizontally using the adjustable suspension 16. The adjustable suspension 16 consists of a perforated rail 38 attached horizontally to the top of the work basket 10. The load hook of the building crane can thus be hooked in at different points along the rail in order to achieve a horizontal setting of the work basket 10. To set up the work basket 5 horizontally, spirit levels are provided at approximately eye level above the grating 12 on all four sides. By pivoting the boom of the building crane

The concrete mixture supplied via the concrete pump hose 20 is distributed in the concrete formwork by means of the crane with the work basket 10 hanging from it. There are generally two people in the work basket, one of whom guides the concrete hose 20 and the other instructs the crane operator via a radio or signal flag. At the same time, the concrete is compacted using the internal vibrator 30. The internal vibrator 30 can be moved so that the end of the vibrating tube 32 dips into the concrete to different depths. The internal vibrator 30 is of a conventional design and is therefore not described in more detail here. When concreting a floor slab, deflection boards 34 are attached under the grating 12. When the boom of the high-rise crane is swiveled to move the work basket 10 when distributing the concrete mixture, the surface of the concrete is simultaneously distorted. The concrete surface can then be smoothed using a power trowel 36, which is attached to the underside of the grating 10. The power trowel 36 is also of a conventional design.

When concreting walls, the skid boards 34 are removed and the work basket 10 is guided on rails along the upper edge of the formwork panels using guide angles 42 on the underside of the grating 12. Two parallel guide angles 42 are attached to the underside of the grating 12 at a distance that is at least equal to the external distance of the formwork panels on both sides of the wall to be concreted.

Fig. 4 shows a top view of the vibration damper 24. It has a hose coupling 43, to which approximately rectangular handles 45 with rubber sleeves 46 in the grip area are attached on opposite sides via vibration dampers 44. The two handles 45 together span an area that is larger than

the top of the shaft 22 so that the rubber sleeves 4 6 are outside the shaft 22.

The work basket according to the invention can be used for a wide range of work in building construction. In addition to concreting work, it can also be used for concrete renovation work, formwork assembly and disassembly, reinforcement work, repair work, scaffolding assembly and disassembly and prefabricated part assembly. The work basket according to the invention can also be used for bricklaying, plastering, painting and roofing work, including sheet metal work.

In addition, the work basket can also be used as a conveyor basket for all types of loads, in particular for radiators, sanitary objects, tiles, windows and floor coverings. So that the work basket 10 can also be used as a conveyor basket, the railings 18 are designed to be foldable or removable.

Finally, the work basket 10 according to the invention can also be used as a rescue basket in the event of fires or other emergencies.

Claims (7)

PROTECTION CLAIMS 1. Work basket (10) with a floor (grating 12), a surrounding railing (18), corner posts (14) and a suspension (16) for securing the work basket (10) to the load hook of a building crane, characterized by devices (22, 24) for guiding a concrete pump hose (20). 2. Work basket according to claim 1, characterized by an adjustment device (38) for setting up the work basket (10) in the horizontal position. 3. Work basket according to claim 1 or 2, characterized in that the concrete pump hose (20) is guided vertically downwards in the middle of the work basket (10) through the floor (grating 12). 4. Work basket according to claim 3, characterized in that an internal vibrator (30) can be arranged in the interior of the work basket (10), the vibrating tube (32) of which is also guided downwards through the floor (grating 12). 5. Work basket according to one of claims 1 to 4, characterized in that on the underside of the floor (grating 12) trimming boards (34) can be arranged. 6. Work basket according to one of claims 1 to 5, characterized in that a wing smoother (36) can be arranged on the underside of the floor (grating 12). 7. Work basket according to one of claims 3 to 6, characterized in that the concrete pump hose (20) and optionally the vibrating tube (32) run in a shaft (22) standing on the floor (grating 12). Work basket according to claim 7, characterized in that the concrete pump hose (20) is held by means of a vibration damper (24) with handles (45) which rest on the upper side of the shaft (22). Work basket according to one of claims 1 to 8, characterized in that the railing (18) is foldable or removable.