DE10019158A1 - Subconstruction for platform; has at least one foot, which has three or four attachment points (4,5), where at least one attachment point can be adjusted in height with respect to other - Google Patents

Abstract

The subconstruction (1) has at least one foot (2), which has three or four attachment points (4,5). At least one of the attachment points can be adjusted in height with respect to the other, at least in steps. The attachment points may have two step heights and may be adjusted using a spindle (21,22,25,26). The attachment points preferably have ball and socket joints (29,30). The foot is preferably telescopic.

Description

The invention relates to a substructure for a platform with at least a foot, the foot at least three, preferably four attachment points.

Especially for painting, repair and installation work So-called goats are used in houses on which a platform is launched. This allows it to be in an elevated position on this platform to work, for example to paint ceilings or lamps on the Connect ceiling. Simple wooden trestles are used for this. It However, height-adjustable trestles are also known, which allow the Arrange the platform at different heights. This is beneficial to use the substructure with different ceiling heights or individually to adapt to the size of the workers.

Such bucks have been well rated and are widely used. Schwie Rig is used in the area of stairwells, however, since this is usually the case there is not enough space to place the trestle securely. Hence who the areas of the staircase that are often built around the stair trestle in the To be able to use the area of a staircase. However, this results in many  Cases of an unsafe installation of the substructure and thus Un falling.

Accidents occur especially when very close to the edge of the plat form must be worked, since the substructure is not directly on the stairs can be placed, or by improper height compensation in the stair area.

The invention is therefore based on the object, a generic further develop the substructure in such a way that it also enters the stair area is settable.

This problem is solved in that at least one point of attachment relative to the others by at least one stair height is adjustable.

The invention is based on the knowledge that known bucks easy to equip with height-adjustable attachment points and are therefore also used for the stairwell area can. Height adjustment devices are used for this in practice to compensate for minor unevenness in the floor and a safe installation to achieve devices. Such height adjustment devices can However, they should also be so stable and safe that heights adjustment by at least one stair height is made possible. This allows such trestles not only on essentially flat bases  set up, but even in stairwells, where special large differences in height must be bridged.

Although such bucks have found widespread use previously not possible to use in stairwells. Because of the simple Training at least one attachment point as a height-adjustable one direction and the formation of this height adjustment for the bridging Covering at least one stair height, it was possible to to provide terbau that works safely even in the stairwell enables.

It is advantageous if the attachment point by at least two stairs step heights is adjustable. Because stairs are usually a height of 18 to 22 cm, this is a considerable height adjustment range, which, however, allows the trestle to be safely placed on a staircase. Ins especially when bridging two to three steps the buck has a sufficient span between the attachment points Base area that allows the trestle to be set up safely.

To implement such a height adjustment with simple means it is proposed that the attachment point be adjusted vertically with a spindle is adjustable. A spindle enables simple mechanical adjustment also in the area of larger height differences without the stabilization of the substructure is impaired by the height adjustment device. Instead of the spindle, however, there are also other mechanical and in particular  also hydraulic height adjustment devices for the Invention appropriate purpose.

To compensate for uneven floors and especially in combination act with a spindle, it is advantageous if at the point of attachment Ball joint is arranged. This ball joint allows Bodenune counteracting the level and makes it possible to turn the spindle, without turning the attachment point.

In practice, the height of the attachment points is set so that the foot is horizontal and the substructure is set up vertically. The height the platform is then preferably over a Teleskopeinrich tion adjusted.

For this purpose, it is proposed that the foot have a telescopic device points and this telescopic device is preferably by one in Boh The cotter pin can be fixed on the foot.

To achieve a secure work platform, it is suggested that the substructure has two feet and a plank that can be placed on it. This allows an elongated work platform to be built on which can be worked comfortably and safely.

A practical embodiment provides that the substructure is a flat with two scaffolding planks or a formwork panel. this makes possible  it, with simple means available on the construction of the substructure manufacture and use recyclable parts.

A secure support of the platform is achieved when the foot is on has a cross member at its upper end. The substructure will then set up so that the cross member comes into a horizontal position and then scaffolding planks or a formwork panel are put on.

A falling of the formwork panels from the cross member is avoided in which the cross member is arranged at right angles to the cross member tion devices. These limiting devices secure the Platform against slipping relative to the foot and thus allow a safe way of working.

An embodiment of the invention is shown in the drawing and is explained in more detail below.

It shows

Fig. 1 is a side view of a substructure according to the invention and

Fig. 2 is a plan view of the substructure shown in Fig. 1.

The substructure 1 has a foot 2 for a platform (not shown). This foot 2 consists of a telescopic device 3 and four below angeord Neten attachment points 4 , 5 , 6 , 7 , which are firmly connected to the telescopic device 2 via carrier 8 , 9 , 10 , 11 , 12 , 13 .

The telescopic device 3 has a vertical tube 4 in which a further tube 5 with a smaller diameter is guided. Bores 14 , 15 and 16 at regular intervals in the tube 4 make it possible to insert a split pin 17 in order to fix the tube 5 in a specific position relative to the tube 4 .

At the upper end of the tube 5 , a cross member 18 is attached by means of braces 19 , 20 . The cross member 18 is thus mounted perpendicular to the tube 5 and the entire telescopic device 3 .

At the lower end of the foot 2 , the attachment points 4 , 5 , 6 and 7 essentially consist of a vertically arranged pipe section 21 , 22 , 23 and 24 , which has an internal thread. A threaded rod 25 , 26 is guided therein, which has a hand crank 27 , 28 at its upper end.

At the lower end of the threaded rod 25 , 26 a ball joint 29 , 30 is fastened, which in turn interacts with a foot plate 31 , 32 .

In order to prevent screeds from slipping on the cross member 18 at the upper end of the substructure, the cross member 18 has limiting devices 33 , 34 at its ends. These are welded Stahlplat th, which protrude slightly above the cross member 18 and together with the cross member 18 form a U-shaped bearing surface for planks or panels.

Claims (10)

1. Substructure ( 1 ) for a platform with at least one foot ( 2 ), where the foot ( 2 ) has at least three preferably four attachment points ( 4 , 5 , 6 , 7 ), characterized in that at least one attachment point ( 4 , 5 , 6 , 7 ) can be adjusted in height relative to the others by at least one step. 2. Substructure according to claim 1, characterized in that the attachment point ( 4 , 5 , 6 , 7 ) is adjustable by at least two stair heights. 3. Base according to claim 1 or 2, characterized in that the attachment point ( 4 , 5 , 6 , 7 ) with a spindle (21, 25; 22 26) is height adjustable. 4. Base according to one of the preceding claims, characterized in that a ball joint ( 29 , 30 ) is arranged at the attachment point ( 4 , 5 , 6 , 7 ). 5. Substructure according to one of the preceding claims, characterized in that the foot ( 2 ) has a telescopic device ( 3 ). 6. Substructure according to claim 5, characterized in that the Te leskopeinrichtung ( 3 ) by a in bores ( 14 , 15 , 16 ) a pluggable cotter pin ( 17 ) can be fixed. 7. Substructure according to one of the preceding claims, characterized in that the substructure ( 1 ) has two feet and a screed that can be placed on it. 8. Base according to one of the preceding claims, characterized records that the substructure is a platform with two scaffolding planks or a formwork panel. 9. Substructure according to one of the preceding claims, characterized in that the foot ( 2 ) has a cross member ( 18 ) at its upper end. 10. Substructure according to claim 9, characterized in that the cross member ( 18 ) perpendicular to the cross member ( 18 ) arranged Be limiting devices ( 33 , 34 ).