DE29504891U1 - Demountable work rack - Google Patents

Description

ITALKREA s.r.l.

Viale S.Agostino 344

VICENZA - Italy

Detachable work frame

The present invention relates to a collapsible work frame according to the preamble of claim 1.

The term work frame as used here is understood to mean a mobile scaffolding consisting of tubular metal elements and (wooden) shelves and used for carrying out minor work for building, cleaning, restoration or the like. Many of these work frames can be dismantled in order to reduce their space requirements, which are relatively large during work , when they are not in use. Some of these known dismantled work frames consist of a frame which, when assembled, comprises two opposite, rectangular side parts which are connected to one another by a side connecting part which is also rectangular and which is arranged at right angles to the first two side parts and which serves as a rear element, while the front part of the structure is open.

In particular, it is provided that each of the two side parts is connected by means of suitable hinge elements with a

the transverse sides of the side connecting part, wherein these hinge elements make it possible to arrange the side parts attached to the side connecting part in such a way that they can be brought into a substantially coplanar position. This has the purpose of considerably reducing the space required by the work frame when it is not in use.

The object of the invention is to provide a work frame of the type described above which can be folded up in an even more space-saving manner compared to similar devices of the known type, and in addition to this property, better stability and strength should also be achieved overall.

According to the invention, this object is achieved by providing a further hinge in the middle region of the side connecting part, the axis of which runs essentially parallel to the transverse sides, which enables this rear side connecting part to be divided into at least two parts that could be folded over one another and over the side parts of the work frame.

The subclaims contain structural details of the

invention that contributes to the utility value and

easy application of the described device.

These and other characteristics of the invention are described in more detail below with reference to a specific embodiment (which represents a non-limiting example) with reference to the drawing. In the drawing:

Fig. 1 and 2 axonometric views of the device according to the invention in an exploded view and in a fully assembled state, respectively;

Fig. 3 and 4 the device according to the invention in

partially or fully folded;

Fig. 5,6 and 7 three views of a special type of

Shelf used in the device according to the invention.

From Figures 1 and 2 it can be seen that the work frame according to the invention comprises two opposite side parts 1 and 2, which are connected to a further side connecting part 3, which is arranged in the rear area (= rear side wall). The side parts 1, 2 and the rear side wall 3 consist of tubular metal elements.

The connection between the side parts 1 and 2 and the rear side connecting part 3 is made by means of a hinge 3' with a vertical axis.

The side parts 1 and 2 have crossbars 4 which are particularly suitable for supporting shelves 5 (Fig. 2) on which one or more people can sit or on which various objects can be placed.

As will become clearer from the description below, the shelves 5 also advantageously have a structural function, as they contribute to the stable nature of the *g<33ä*mißri:'Afipfd^a

The above-mentioned structure can further be supplemented on the upper side by arched elements 6, the ends 6' of which are inserted into the upper ends of posts 7 of the two opposite side parts.

A fundamental feature of the device according to the invention consists in the fact that in the central region of the rear side connecting part 3 at least one hinge 8 is arranged, the axis 9 of which runs parallel to the axes of the hinges 3' present on the transverse sides.

Advantageously, the hinge 8 comprises tubular seats 9' and 9", which are firmly connected to the tubular elements of both parts of the rear side connecting part, within which tubular elements, suitably aligned, a rod 10 is inserted so that it cannot move out of the aforementioned tubular seats 9', 9",

As can be seen from Fig. 3, the structural arrangement described above allows the two side parts

1 and 2 and the rear side connecting part 3 in one and the same plane and fold them together accordingly in a book shape, as shown in Fig. 4.

In order to facilitate the transport of the entire complex in the latter state, it is advantageously ensured that the two posts 7 are

2 are provided with steerable rollers 11 at the lower end, while the posts 7 of the opposite side part 1 end in slightly curved areas 12 which serve as engagement elements (cf. Fig. 4).

As can be seen from Figures 5 to 7, the shelves 5 present in the work frame according to the invention have a shape that is particularly advantageous for use.

In particular, these shelves have profiles 13 with an inverted U-section on their transverse edges, which can be placed on the crossbars 4 of the side parts 1 and 2, thus ensuring both secure positioning of the shelves and the overall stability of the work frame.

Furthermore, there are further profiles 14 on the long sides of the shelves, which have wings 14' on the sides in the shape of an inverted L. These wings serve as guide and holding elements for plates 5', which represent the actual supporting elements of the shelves 5.

A reinforcing rod 15 is arranged in the longitudinal direction on the underside of the profile part 14.

As can be seen from Fig. 4, a hook element 16 can be provided on one of the reinforcing rods 15, which can be hooked into one of the crossbars 4 of the side parts 1 and 2 and thus enables the shelf to be hooked in.

From the above explanations it is clear that the device according to the invention proves to be extremely stable for the user in the working position and can be easily folded up when not in use. As a result, a collapsible work frame is developed which has two opposite rectangular

Side parts 1, 2, which are connected to one another by a further, also rectangular side connecting part, which is arranged at right angles to the two other side parts.

It is provided that each of the two side parts 1, 2 is connected to a transverse side of the (rear) side connecting part 3 by means of hinge elements. According to the invention, it is further provided that the rear side connecting part 3 has a further hinge 8 in the middle area, which enables the side connecting part to be divided into at least two parts that can be folded over one another and over the side parts 1, 2 of the work frame in the manner of a book, whereby the process of folding the frame is made easier and the overall space requirement of the device when not in use is reduced.

Reference number1list

1 side panel

2 side part

3 Side connecting part, rear side wall

3' hinge (element)

4 Crossbar

5 shelves 5' plate

6 arched element 6' end

7 posts

8 Hinge

9 Axis

9' tubular seat

9" tubular seat

10 bars

11 Role

12 arched area

13 Profile

14 Profile (part)

15 Reinforcing bar

16 Hook element

Claims (6)

Expectations 1. Demountable work frame, consisting of a plurality of tubular metal elements forming a framework which, when assembled, has a pair of opposite rectangular side parts (1, 2) which are connected to one another by a further, also rectangular, side connecting part (3) which is arranged at right angles to the two other side parts (1, 2), whereby it is ensured that each of the two side parts (1, 2) is connected to a transverse side of the side connecting part (3) by means of hinges (3') which enable the side parts attached to the side connecting part (3) (1.2) to be arranged essentially coplanarly in order to reduce the space required by the work frame when not in use, characterized in that at least one further hinge (8) is provided in the central region of the side connecting part (3), the axis (9) of which runs parallel to the side edges, whereby a division of the rear side connecting part (3) into at least two parts (3.3) which can be folded like a book on top of each other and onto the side parts (1,2) of the work frame. 2. Work frame according to claim 1, characterized in that the hinge (8) on the rear
Side connecting part (3) has at least two tubular seats (9', 9"), each η η η η η η η η η η η »φ φ« φ φ * * · φ φφφφ &phgr;&phgr; * · &phiv; φφφφ &phgr; are firmly connected to one of the tubular elements of the two different parts of the side connecting part (3), whereby these tubular seats (9', 9") are aligned with each other and a rod (10) can be inserted into them as an axle pin. 3. Work frame according to claim 1, characterized in that shelves (5) are provided which have profiles (13) with an inverted U-shaped cross-section on their transverse edges, which can be placed on crossbars (4) of the opposite side parts (1, 2) of the work frame. 4. Work frame according to claim 1, characterized in that a hook element (16) is arranged on the lower side of the shelf (5) in the working position, which enables the shelf (5) to be hooked into one of the crossbars (4) present on the side parts (1, 2), 5. Work frame according to claim 1, characterized in that at the lower ends of the posts (7) of one of the side parts (1) two steerable rollers (11) are provided, while the ends of the posts (7) of the other side part (2) have curved areas (12) which can serve as engagement elements. 6. Work frame according to claim 1, characterized in that the upper ends of the posts (7) of the opposite side parts (1, 2) are mutually connected to arcuate elements (6), the ends (6') of which are inserted into corresponding seats provided at the upper ends of the posts (7).