DE29715082U1 - Device for transporting and storing facade scaffolding frames - Google Patents

Description

G 18 026 - dls 05.08.1997

Baumann Verwertungsgesellschaft mbH, 88471 Laupheim

Device for transporting and storing facade scaffolding frames

The invention relates to a device for transporting and storing essentially rectangular facade scaffolding frames with lateral longitudinal beams and cross beams connecting them.

The object of the invention is to create such a device with which a plurality of frames can be stored and transported in a compact and easy-to-handle manner.

This object is achieved according to the invention in that the device is formed by a transport and storage frame, which has an upwardly facing support surface arranged in the base area of the frame as a base for a multiple of upright frames with horizontally running longitudinal beams arranged one behind the other in the depth direction of the frame, in alignment, resulting in a package-like arrangement, and at least one support frame running at a distance above the support surface in the depth direction and attached to the

The front side of the frame, on which the positioning frames are inserted and removed, has a free-ending holding arm for gripping underneath the upper longitudinal beams of the positioning frames, with the front side of the frame being assigned at least one safety arm that can be adjusted between a position of use and a position of non-use, which in its position of use extends in the vertical direction from the base area of the frame to above the free end of the holding arm and thus in front of the positioning frames inserted into the frame and secures them against falling out and in its position of non-use releases the front side of the frame for inserting or removing the positioning frames.

The facade scaffolding frames to be transported or stored are placed next to one another in the frame in a vertical orientation, with the frame package being penetrated by at least one holding arm, which protrudes forwards at right angles to the longitudinal beams that run at the top when installed, so that the frames are secured against tipping over. If the additional at least one securing arm is in its position of use, the frames are held captive on the frame, but if the at least one securing arm is moved to its non-use position, the frames can be removed individually or in groups. Inserting the frames

into the frame is just as easy.

The support frame package located in the frame encloses an interior space. In this context, it is expedient that the frame area that accommodates the support frames is closed or can be closed at the back by an end wall over at least part of its height and that the front of the frame area that accommodates the support frames is assigned a removably attachable front wall that extends over at least part of the height of the frame area that accommodates the support frames. In this way, the interior space mentioned is not only closed at the back, but can also be closed at the front, so that it can be used to accommodate other scaffolding parts or scaffolding accessories. The support frame package thus provides walls of a storage space for free, which can be used above all to accommodate larger objects that cannot fall out next to the front wall and the rear end wall, where the support frame package protrudes over these walls.

Furthermore, the transport and storage frame can have a container area, which is connected to the rear of the frame area that accommodates the assembly frames, with a base and container walls that protrude from this base for inserting scaffolding parts or scaffolding accessories, whereby this

Container area is particularly intended for holding smaller parts such as couplings, etc.

It is sensible to insert parts into the receiving space enclosed by the assembly frames and, if necessary, into the rear container area, in the number and type of parts that match the facade scaffolding to be created with the assembly frames, so that a coherent
Scaffolding unit can be assembled and transported as a whole.

Further appropriate measures are specified in the subclaims.

An embodiment of the invention will now be explained in detail using the drawing. They show:

Fig. 1 a transport and storage frame according to the invention
with the safety arms in their position of use in a schematic oblique view, whereby the facade scaffolding frames to be stored in the frame are not shown,

Fig. 2 the transport and storage rack according to Fig. 1 in side view according to arrow II, where a package
of facade scaffolding frame,

Fig. 3 the arrangement according to Fig. 2 in section along the section line �Igr;�Igr;�Igr;-�Igr;�Idigr;�Igr;,

Fig. 4 the same transport and storage frame in the side view corresponding to Fig. 2, but with removed safety arms and without adjustment frame,

Fig. 5 one of the safety arms in Fig. 4 corresponding side view in a separate illustration and

Fig. 6 shows the rear container area of the transport and storage frame in horizontal section according to section line VI-VI in Fig. 4, whereby the various walls are only indicated by a dot-dash line for the sake of clarity.

The device shown in the drawing serves to transport and store essentially rectangular facade scaffolding frames 1 and is formed by a transport and storage frame 2.

As is well known, a facade scaffold is a scaffold that stands on the ground in front of a building wall and is

This forms a scaffolding that extends upwards and is formed by rows of frames 1 placed on top of one another, standing parallel to one another at a horizontal distance, with the plane of the frame being at right angles to the building wall. Such a frame 1 has an essentially rectangular shape and contains two longitudinal beams 3, 4 that run parallel to one another at a distance, the end areas of which are connected to one another via cross beams 5, 6, so that the rectangular shape is created. In the drawing, the frames 1 are shown in their position inserted into the frame 2, in which the longitudinal beams 3, 4 run horizontally and the cross beams 5, 6 run vertically. When they are used to build a facade scaffolding, they take up a position rotated by 90° compared to the position shown, so that they are vertical with their longitudinal beams 3, 4. The cross beam 5 arranged at the top of the facade scaffold serves to hold a walkable scaffolding surface. The assembly frames 1 placed on top of one another in the facade scaffold are plugged together. For this purpose, a plug pin 7 is attached to the end of each longitudinal beam 3, 4 located at the top in the "scaffolding position", which engages in the tubular hollow lower end of the facing longitudinal beam of the assembly frame 1 arranged above it. In the assembly frames 1 shown, the two frame corners arranged at the top in the "scaffolding position" are also between the cross beam 5 and the two longitudinal

beams 3, 4 are each reinforced by a gusset plate 8 or similar extending over the inner corner. On the opposite cross beam 6, near the longitudinal beam 4, which faces away from the building wall in the "scaffolding position", a rod-like toe board holder 9 extends parallel to the longitudinal beam towards the other cross beam 5. When the facade scaffolding is erected, a toe board can be placed between the longitudinal beam 4 and the toe board holder 9 to prevent objects from falling down.

A large number of such assembly frames 1 are required for a facade scaffold. In order to minimize the space required for them during storage and transport and to facilitate handling, especially on the construction site, the frame 2 shown was developed. This forms an upward-facing support surface 11 arranged in the floor area 10 of the frame 2 (the floor area 10 is located at the bottom and faces the floor on which the frame stands) as a base for the assembly frames 1 to be inserted or inserted into the frame. A plurality of assembly frames 1 arranged upright with horizontally running longitudinal beams 3, 4 can be stored on the support surface 11, which are arranged in line one behind the other in the depth direction 12 of the frame 2 and result in a package-like arrangement (see Fig. 2). When inserted into the frame 2, the frame level is

i.e. arranged vertically, and the adjustment frames are directly adjacent to each other. Viewed from the front side 13 of the frame, which is the operating side, so to speak, where the adjustment frames 1 are inserted into the frame or removed from it, the viewer only sees the front adjustment frame 1, since the other adjustment frames are arranged in line behind it.

The frame 2 also has at least one, in the practical embodiment two, holding arms 14, 15 arranged at a distance above the support surface 11 in the area of the frame top, running in the depth direction 12, which end freely on the frame front 13. When the setting frame 1 is inserted into the frame, the two holding arms 14, 15 engage under its upper longitudinal beams 4, in other words, the setting frames 1 are placed on the holding arms 14, 15 when they are inserted, so that the upper longitudinal beams 4 of the setting frame 1 extend above the holding arms 14, 15. The holding arms 14, 15 are practically directly adjacent to the upper setting frame longitudinal beams 4. The positioning frames 1 are therefore seated at the bottom and/or top with their lower longitudinal beams 3 on the support surface 11 or with their upper longitudinal beams on the support arms 14, 15.

In the example, the height direction

16 measured distance between the base 11 and the top of the holding arms 14, 15 essentially corresponds to the distance between the outside of one longitudinal beam 3 and the inside of the other longitudinal beam 4 of the positioning frame 1. In the embodiment, the positioning frames 1 therefore sit on the base 11 at the bottom and are prevented from falling over by the holding arms 14, 15. Since there can be a small distance between the holding arms 14, 15 and the upper longitudinal beams 4 of the positioning frame 1, the positioning frames can tilt a little and then sit with their upper longitudinal beams on the holding arms 14, 15.

As already mentioned, in principle a single support arm is sufficient. This would be conveniently arranged in the middle in the direction of the longitudinal beams 3, 4 corresponding to the frame1 longitudinal direction 17.

At least one safety arm is assigned to the front side 13 of the frame 1. In the practical embodiment, two such safety arms 18, 19 are present. Each safety arm 18, 19 is adjustable between a use position (Fig. 1 and 2) and a non-use position (Fig. 4 and 5), whereby in its use position it extends in the height direction 16 from the base area 10 of the frame 2 to above the free end 20 of the at least one holding arm 14, 15 and thus in front of the

■· ft· *·

The arm extends over the frame 1 and secures it against falling out. If, however, the securing arms 18, 19 are in their non-use position, they release the front side 13 of the frame 1 so that the frame 1 can be inserted into the frame or removed from it.

If only one such safety arm were available, it would also be expedient to arrange it in the middle in the longitudinal direction 17.

The securing arms 18, 19 can be detachably connected to the free end 20 of the holding arms 14, 15. Each holding arm 14, 15 is therefore assigned a securing arm 18, 19. The detachable connection can be implemented in a simple manner, for example, by having two bearing tabs 21, 22 arranged at a distance from one another at least corresponding to the diameter of the associated securing arm 18, 19 on the free end 20 of the respective holding arm 14, 15 and protruding in the longitudinal direction of the holding arm. The respective securing arm 18, 19 can be inserted into the space between the two bearing tabs 21, 22. A detachable retaining device is arranged on the bearing brackets 21, 22, which holds the inserted securing arm 18, 19 in its position of use, which in the embodiment is connected to the bearing brackets 21, 22 by plug holes 23 and a through the plug holes of the respective bearing bracket.

pair of securing bolts 24 inserted in front of the respective securing arm.

The lower end area of the securing arms 18, 19 can also be connected to a part fixed to the frame, preferably via a detachable plug connection. For this purpose, a plug pin protruding in the longitudinal direction of the securing arm can be present at the lower end area of the securing arms 18, 19 and can be inserted into a pipe socket 26 as a part fixed to the frame. In this connection, the preferred embodiment also provides that the pipe socket 26 is formed by a respective frame base piece 27, 28, with which the transport and storage frame 2 stands on the floor.

The securing arms 18, 19 can therefore be inserted into or pulled out of the pipe sockets 26 in the vertical direction 16.

Another useful measure is that the holding arms 14, 15 have an upwardly projecting stop body 29 in the area of their free end 20. This stop body forms a stop surface 30 facing the inserted adjusting frame 1 for the upper longitudinal beam 4 of the front adjusting frame 1. This stop surface 30 forms a safety measure so that

after removing the safety arms 18, 19, the frontmost adjusting frame 1 cannot accidentally tip outwards. When removing the respective adjusting frame 1, it must therefore be lifted slightly so that its upper longitudinal beam 4 passes over the stop body 29.

In the embodiment, the stop surface 30 is inclined upwards towards the front. The stop body 29 can, as shown, be formed by an angle piece welded onto the respective holding arm 14, 15.

Each support arm 14, 15 projects forward at right angles from a vertical arm 31, 32, which extends in the vertical direction 16 at the rear of the frame area accommodating the positioning frames 1.

At the rear end of the respective holding arm 14, 15 there is a contact surface 33 which protrudes above it and forms a stop for the upper longitudinal beam 4 of the respective rearmost adjustment frame 1. In the embodiment, this contact surface 33 is formed by an extension piece of the respective vertical arm 31, 32 which is pulled up above the respective holding arm 14, 15.

The lower end area of the vertical arms 31, 32 forms a rear stop for the lower longitudinal beam 3 of the positioning frame 1. 13

The drawing also shows that in the exemplary embodiment, the support surface 11 is formed by cross members 34, 35 of the frame 2, which are arranged at a distance from one another in the longitudinal direction 17 of the frame 1 and run in the depth direction 12. The upper sides of these cross members 34, 35 together form the support surface 11.

In the preferred embodiment according to the drawing, a cross-beam 34, 35 running downwards in the depth direction 12, a vertical arm 31, 32 standing up from the respective cross-beam 34, 35 on the rear side of the frame area that accommodates the positioning frames 1 and a holding arm 14, 15 protruding at right angles from the upper end area of the vertical arm are arranged at each of the two longitudinal ends of the frame 2, so that at each longitudinal end the cross-beam, the vertical arm and the holding arm form a C-like arrangement with the C-opening 36 facing the front side 13 of the frame. The respective securing arm 18, 19 is assigned to this C-opening 36, which closes the C-opening 36 in its position of use. Thus, at each longitudinal end, the cross member 34, 35, the vertical arm 31, 32, the holding arm 14, 15 and the securing arm 18, 19 form a rectangle.

At the front end of the two cross members 34, 35, one of the aforementioned foot pieces 27, 28 is arranged, which

the pipe socket 26 for inserting the respective safety arm 18, 19.

The two C-shaped arrangements, each essentially formed by a crossbar, a holding arm and a securing arm, are connected to one another by longitudinal crossbars 37, 38, 39. There are at least 10 such longitudinal crossbars in the floor area. As can be seen from the drawing, the longitudinal crossbar 37 extends at the front and bottom between the two front ends of the crossbars 34, 35 and the two foot pieces 27, 28. Furthermore, another longitudinal crossbar 38 runs at the rear of the vertical arms 31, 32 between the two crossbars 34, 35, so that the two longitudinal crossbars 37, 38 and the two crossbars 34, 35 form a rectangular arrangement. At the rear of the frame area that accommodates the assembly frames 1, a further longitudinal cross member 39 extends above the longitudinal cross member 38 between the two vertical arms 31, 32, which increases the stability of the frame.

The frames 1 inserted into the frame form as a whole a package-like arrangement that encloses an interior space that is bordered at the bottom by the lower longitudinal beams 3, at the top by the upper longitudinal beams 4, at one longitudinal end by the cross beams 5 and at the other longitudinal end

*« 14 »» t» t« ♦·**

is limited by the crossbars 6 of the assembly frame 1. In this connection, it is provided that the frame area accommodating the assembly frame 1 is closed or closable at the back by an end wall 40 over at least part of its height. In the exemplary embodiment, the end wall 40 is formed by several wall parts 41 running one above the other, each formed by a board, which are attached in a manner to be described. Furthermore, the front side 13 of the frame area accommodating the assembly frame 1 is assigned a removably attachable front wall 42, which also extends over at least part of the height of the frame area accommodating the assembly frame, and which is only indicated in dash-dotted lines in Fig. 1. This front wall 42 is removed to insert and remove the assembly frame 1.

When the assembly frames 1 are inserted, the end wall 40 closes off the interior space enclosed by them at the rear. In this way, the said interior space forms a storage space for other objects, in particular for other scaffolding parts that are required to create the facade scaffolding. These parts can be inserted from the front. The front is then closed off by the front wall 42.

The positioning frames 1 protrude beyond the longitudinal ends of the frame 2, as can be seen in particular from Fig. 3. The end wall 40 and the front wall 42 therefore do not extend over the entire length of the positioning frame and thus not over the entire length of the interior space mentioned. This is why it is open at the front and rear adjacent to the two longitudinal ends of the frame 2. In Fig. 3, the two rear open areas are designated with the reference numbers 43 and 44. Because of these open areas, the objects brought into the interior should, if possible, have a larger shape that does not fit through the open areas 43, 44. Depending on the design of the positioning frames 1, these open areas 43, 44 can also be significantly narrower than shown, so that the size of the objects to be brought in does not have to be taken into account.

In the embodiment, the width of the open areas 43 is determined by the distance between the toe board holder 9 and the upper gusset plate 8 or the like, which are located laterally in front of the respective longitudinal end of the frame 2 and form stops against slipping of the positioning frame 1 in the longitudinal direction 17.

The fastening of the end wall 40 and the front wall 42 can be carried out in different ways. When executing

In this connection, it is expediently provided that the two vertical arms 31, 32 and the two securing arms 18, 19 each carry a U-profile piece on their side facing the other vertical arm or securing arm, whereby the two U-profile pieces 45 on the vertical arms 31, 32 and the two U-profile pieces on the securing arms 18, 19 are directed towards each other with their open sides, so that the end wall 40 at the back and the front wall 42 at the front or the wall parts forming it are inserted or can be inserted with their longitudinal ends into the U-profile pieces 45.

The transport and storage frame 2 shown also has a container area 46 which adjoins the frame area 1 receiving the assembly frames 1 at the rear and has a container base 47 and container walls 48, 49, 50, 51 which protrude from this, so that an essentially cuboid-shaped container with an open top is produced, which can, however, also have a lid. The container thus formed by the container area 46 is also used for placing scaffolding parts or scaffolding accessories, which can also be small parts.

The transport and storage frame 2 thus offers the possibility of connecting a set of assembly frames 1 with further

to combine the parts required for the scaffolding to be erected from these frames into a transport and storage unit.

To form the container area 46, in the exemplary embodiment, the two crossbeams 34, 35 are each extended backwards beyond the facing vertical arm 31, 32 to a rear frame corner post 52 or 53. The two corner posts 52, 53 are connected to one another at the bottom via a longitudinal crossbeam that is hidden in front view by the longitudinal crossbeams 37, 38 and further up, in the exemplary embodiment at the same height as the longitudinal crossbeam 39, via a longitudinal crossbeam 54. Furthermore, a stiffening strut 55, 56 extends at each frame longitudinal end between the relevant corner post 52, 53 and the vertical arm 31, 32 arranged in front of it, which in the exemplary embodiment runs as an extension of the facing holding arm 14, 15.

The two corner posts 52, 53 each carry a U-profile piece 45 on their side facing the other corner post and the adjacent vertical arm, as has already been mentioned in connection with the attachment of the end wall 40 and the front wall 42. Likewise, the vertical arms 31, 32 also carry a U-profile piece 45 on their side facing the other vertical arm and the adjacent corner post.

one such U-profile piece 45 on the side facing away from the container, so that the container walls can be inserted.

The rear end wall 40 of the frame area accommodating the positioning frames 1 simultaneously forms the container wall 50. Accordingly, only a single U-profile piece 45 is present on the sides of the two vertical arms 31, 32 facing each other.

The various walls are conveniently made of wooden boards.

The container bottom 47 can be placed on the extensions of the cross members 34, 35.

The transport and storage frame 2 can be conveniently gripped by a forklift truck. The foot pieces 27, 28 - the rear corner posts 52, 53 form corresponding foot pieces - protrude so far downwards that the crossbars on the underside of the frame can be gripped by the forklift truck arms.

Furthermore, eyelets 57 for connecting a crane rope or the like are arranged on the frame, expediently on its base area, so that the frame can also be moved by means of a crane.

The transport and storage frame 2 is designed to be stackable so that several frames 2 can be placed on top of one another. For this purpose, the two rear corner posts 52, 53 and the two securing arms 18, 19, which form the front corner posts in their position of use, each have a receptacle 58 on their upper side so that the base pieces of the rear corner posts and the securing arms of the upper frame can be placed in the receptacles 58 of the lower frame.

Claims (22)

G 18 026 - dls 05.08.1997 Baumann Verwertungsgesellschaft mbH, 88471 Laupheim Device for transporting and storing facade scaffolding frames Claims 1. Device for transporting and storing essentially rectangular facade scaffolding frames with lateral longitudinal beams and cross beams connecting them, characterized in that it is formed by a transport and storage frame (2) which has an upwardly facing support surface (11) arranged in the base area (10) of the frame (2) as a base for a plurality of upright frames (1) arranged one behind the other in the depth direction (12) of the frame (2) in alignment with horizontally running longitudinal beams (3, 4) and resulting in a package-like arrangement, and at least one holding arm (14, 15) running at a distance above the support surface (11) in the depth direction (12) and ending freely on the front side (13) of the frame (1) on which the support frames (1) are inserted and removed, for gripping adjacently under the upper longitudinal beams (4). the support frame (1), wherein the frame front side (13) has at least one between a A safety arm (18, 19) is assigned which is adjustable between the use position and a non-use position and which, in its use position, extends in the height direction (16) from the base area (10) of the frame (2) to above the free edge (20) and thus in front of the adjusting frame (1) introduced into the frame (2) and secures it against falling out and, in its non-use position, releases the front side of the frame (13) for inserting or removing the adjusting frame (1). 2. Device according to claim 1 ₅ , characterized in that the at least one securing arm (18, 19) is detachably connectable to the free end (20) of the at least one holding arm (14, 15). 3. Device according to claim 2, characterized in that at the free end (20) of the at least one holding arm (14, 15) there are two bearing tabs (21, 22) arranged at a distance from one another at least corresponding to the diameter of the associated securing arm (18, 19) and protruding in the longitudinal direction of the holding arm, between which the securing arm (18, 19) can be inserted, a releasable retaining device holding the inserted securing arm (18, 19) being arranged on the bearing tabs (21, 22). · 4. Device according to one of claims 1 to 3, characterized in that the lower end region of the at least one securing arm (18, 19) can be connected to a frame-fixed part via a detachable plug connection, 5. Device according to claim 4, characterized in that at the lower end region of the at least one securing arm (18, 19) there is a plug pin (25) which projects in the longitudinal direction of the securing arm and which can be inserted into a pipe socket (26) as a fixed part. 6. Device according to claim 5, characterized in that the pipe socket (26) is formed by a frame base piece (27, 28). 7. Device according to one of claims 1 to 6, characterized in that the at least one holding arm (14, 15) has, in the region of its free end (20), an upwardly projecting stop body (29) which forms a stop surface (30) for the upper longitudinal beam (4) of the respective frontmost adjusting frame (1). 8. Device according to one of claims 1 to 7, characterized in that the at least one holding arm (14, 15) extends from a frame area on the back of the frame (1) in the vertical direction (16) upright vertical arm (31, 32) protrudes forwards at a right angle. 9. Device according to one of claims 1 to 8, characterized in that at the rear end of the at least one holding arm (14, 15) there is a raised contact surface (33) for the upper longitudinal beam (4) of the respective rearmost adjusting frame (1). 10. Device according to claim 8 or 9, characterized in that the contact surface (33) is formed by an extension piece of the vertical arm (31, 32) pulled up over the holding arm (14, 15). 11. Device according to one of claims 1 to 10, characterized in that the support surface (11) is formed by cross-beams (34, 35) of the frame (2) which are arranged at a distance from one another in the longitudinal direction (17) of the frame and run in the depth direction (12). 12. Device according to one of claims 1 to 11, characterized in that at the two longitudinal ends of the frame (2) there is a cross-beam (34, 35) running downwards in the depth direction (12), a vertical support (36) extending upwards from the respective cross-beam (34, 35) on the rear side of the support area receiving the positioning frames (1). vertical arm (31, 32) and a holding arm (14, 15) projecting at right angles from the upper end region of the vertical arm (31, 32) are arranged, which form a C-like arrangement with the C-opening (36) facing the frame front side (13), to which a securing arm (18, 19) is assigned, which closes the C-opening (36) in its position of use. 13. Device according to claim 12, characterized in that at the front end of the two cross members (34, 35) a foot piece (27, 28) is arranged, which has a pipe socket (26) for inserting the respective securing arm (18, 19). 14. Device according to claim 12 or 13, characterized in that the two C-shaped arrangements each essentially formed by a cross-beam (34, 35), a holding arm (14, 15) and a securing arm (18, 19) are connected to one another by longitudinal cross-beams at least in the base area. 15. Device according to one of claims 1 to 14, characterized in that the frame area receiving the positioning frames (1) is closed or can be closed at the rear over at least a part of its height by an end wall (40). 16. Device according to claim 15, characterized in that the front side (13) of the gesture area receiving the positioning frames is assigned a removably attachable front wall (42) extending at least over part of the height of the gesture area receiving the positioning frames (1). 17. Device according to claim 12 and one of claims 15 or 16, characterized in that the two vertical arms (31, 32) and/or the two securing arms (18, 19) carry U-profile pieces (45) with their open sides directed towards one another, into which the end wall (40) or the front wall (42) or wall parts forming the respective wall can be inserted. 18. Device according to one of claims 1 to 17, characterized in that the frame (2) can be gripped by a forklift truck. 19. Device according to one of claims 1 to 18, characterized in that nozzles (57) for connecting a crane rope or the like are arranged on the frame (2), in particular in its base area (10). 20. Device according to one of claims 1 to 19, characterized in that the transport and storage frame (2) a container area (46) adjoining the frame area receiving the assembly frames (1) to the rear, with a container base (47) and container walls (48, 49, 50, 51) projecting from this base for inserting scaffolding parts or scaffolding accessories. 21. Device according to claim 12 and claim 20, characterized in that the two cross members (34, 35) are each extended rearward beyond the facing vertical arm (31, 32) up to a rear frame corner post (52, 53), whereby the two corner posts (52, 53) each carry a U-profile piece (45) for inserting the respective container wall or wall parts forming it on their side facing the other corner post as well as the adjacent vertical arm and the two vertical arms (31, 32) each carry a U-profile piece (45) on their side facing the other vertical arm as well as the adjacent corner post. 22. Device according to one of claims 15 to 21, characterized in that the rear end wall (40) of the support area receiving the positioning frames (1) forms a container wall (wall 50).