DE9308892U1 - Packaging container - Google Patents

Description

Packaging containers

The invention relates to a packaging container, in particular a packaging box or the like, with a base part and a plurality of side parts that can be brought into engagement with one another and with the base part.

For a variety of packaging tasks, particularly for the shipment of machine parts and systems, packaging crates, i.e. packaging containers consisting of interconnected locking elements, or packaging containers such as packaging boxes with side walls, possibly stiffened by internal locking elements, mostly made of wood, are common, whereby the assembly of such packaging containers takes place with the aid of nails or screws and the removal of the packaged goods at the recipient's location is not infrequently accompanied by the destruction of the packaging container. In a conventional packaging box made of stiffened multi-layer panels made of wood or wood waste, the individual panel parts of the packaging box are connected to one another by metal clips, whereby there is always a risk of the metal clips being lost during transport or after dismantling and a relatively complicated, hazardous assembly is required.

Conventional packaging containers, which in the context of this utility model include both packaging crates consisting of individual locking elements connected to one another and closed packaging containers such as packaging boxes with closed side walls, e.g. for shipping machines or machine parts, are therefore disadvantageous both during final packaging at the place of dispatch and when opening at the place of destination, in that their assembly and disassembly often require a considerable amount of manpower using appropriate tools. During assembly, the problem also arises that sufficient inherent stability is often only achieved after the box body has been completely assembled, while during assembly itself manual

It is necessary to fix the individual parts together before they are attached to one another, possibly by several people. In addition, in the case of packaging boxes, the items to be packed can often only be inserted into the packaging container from above, as there is no lateral access to the interior of the packaging container or packaging box.

The removal of fastening parts when opening the packaging container or the packaging box or the packaging crate often leads to irreparable damage due to the use of tools, so that reusing the packaging container is often not an option, or a sensible return of the packaged goods to their original location is not possible.

The invention is therefore based on the object of improving a packaging container of the type mentioned at the outset, in such a way that, with a high level of stability of the packaging container, even when partially assembled or disassembled, a quick, uncomplicated and cost-effective assembly or disassembly is possible, essentially without the use of assembly tools.

This object is achieved according to the invention in that at least one horizontally and/or vertically arranged engagement angle is connected to the plates or locking elements, which is spaced apart from a free locking leg and is arranged to an adjacent flat surface while leaving a locking gap corresponding to at least one material thickness of the locking leg, and the engagement angles of base and/or side parts arranged at right angles to one another can be brought into locking displacement engagement with one another in pairs.

The solution according to the invention thus enables associated pressure angles, e.g. the pressure angles of adjacent side walls extending at right angles to each other, or

the engagement angles of the base part interacting with the engagement angles of the opposite side parts are brought into a comb-like locking engagement with one another, so that after assembly each element already forms an independently positionally stable unit with the previous element and an extremely simple assembly of the packaging body with a high level of stability is possible.

The assembly of the individual parts of the packaging body, i.e. both individual locking elements and closed side wall panels with locking elements preferably provided on their inside, which carry the engagement angles, is carried out in such a way that the free locking legs of the engagement angles, which are intended for comb engagement with one another, engage with one another after mutual relative displacement, in that the free locking legs of the engagement angles, which engage with one another in pairs, each engage in the locking gap between the locking leg and the flat surface opposite it, to which the engagement angle is connected.

The assembly of the packaging body, such as a packaging crate (individual locking elements) or a packaging box (closed wall parts), is therefore carried out by simple displacement engagement, i.e. a relative displacement of engagement angles provided in pairs for mutual locking, which are attached to the side parts, the base part and any cover part provided.

According to a preferred embodiment of the invention, in which the packaging body consists of a packaging crate, i.e. individual locking elements that can be brought into releasable locking engagement with one another, the base part consists of a plurality of spaced locking elements with engagement angles arranged at the opposite ends, which are provided for locking engagement (comb engagement) with associated engagement angles of locking elements forming the side parts.

According to a further preferred embodiment of the invention, the locking elements of the side parts form closed frame squares made of horizontal and vertical beams, with engagement angles being arranged at least on the vertical beams.

According to a further preferred embodiment of the invention, two opposite side parts of the packaging container are each designed identically, with two opposite side parts having engagement angles along the circumference of the closed frame square on both the upper and lower horizontal bars and on the vertical bars, while the two remaining side parts have engagement angles only on the vertical bars for locking with the complementary engagement angles on the vertical bars of the two remaining side parts.

For the preferred design of the packaging body as a packaging container or packaging box with closed walls, according to a further embodiment of the invention, the base part forms a base plate, which can be attached to a pallet, for example, and that along two opposite outer edges of the base plate, opposing engagement angles are arranged in pairs, the free locking legs of which extend adjacent to and essentially parallel to the top of the base plate. With such a base plate, two opposing side walls can be mounted by inserting the corresponding, free locking legs of the associated engagement angles of side walls into the locking gap between the free locking legs of the base plate-like engagement angles and the top of the base plate, while the remaining, front side walls with their vertical engagement angles are hooked to the corresponding counter engagement angles on the vertical bars of the two side walls mounted first by means of a sliding engagement.

For the production of such a packaging box, according to a further preferred embodiment of the invention, each side part is designed with an outer wall panel and an inner frame square formed from locking elements, which is provided on the inside of the wall panel, wherein the frame squares are arranged offset inwards with respect to the outer contour of the associated wall panel and carry the engagement angles, wherein adjacent side parts can each be mounted at right angles to one another, and wherein after mounting the side parts on the base plate and among one another, the outer surfaces of the side parts are flush with one another.

In many cases it is desirable to close the packaging body, especially when designed as a packaging box, with a lid part. According to a further, preferred embodiment of the invention, a lid part is provided for this purpose, which has a lid plate with two locking parts arranged along opposite outer edges (parallel to those two opposite side walls that each have engagement angles along their upper horizontal bars) and engagement angles attached to these, for locking engagement with the upper, horizontally arranged engagement angles of two opposite side walls.

According to a further, preferred embodiment of the invention, which leads to increased wear resistance of the connection of the side parts to the base part or the side parts to the lid of the packaging container and further simplifies assembly and disassembly, it is provided that the engagement angles are arranged on angle rails, in particular welded to them and the angle rails are attached to the locking elements, in particular the horizontal or vertical bars. In this case, the locking gap is then formed between the free locking leg of the engagement angle or the engagement angles and the opposite outer surface of a leg of the angle rail.

In such an embodiment, the locking engagement is therefore realized exclusively by metal surfaces engaging with one another, so that both the locking of the side parts with the base part or with the cover by means of a metal-metal sliding connection is simplified and the position and shape stability of the engagement angles is increased, so that even after a large number of assembly or disassembly processes, the engagement angles that engage with one another can be reliably and easily assembled or disassembled in a sliding engagement.

Preferably, a plurality of engagement angles are arranged on a common angle rail and the angle rail is connected to a locking part, in particular a horizontal or vertical bar.

In a further development of this embodiment of the invention, the pressure angle or the pressure angles are integrally formed in one piece with the angle rail and in particular are formed by a continuous F-profile-shaped extruded profile. In this case, a continuous free locking leg, possibly interrupted in the area of fastening holes in the leg of the angle rail, is located opposite the leg of the angle rail to form the locking gap, while the remaining legs of the angle rail and the pressure angle coincide.

In yet another embodiment of the invention, additional locking elements for forming a frame square or as a mounting part for the engagement angles can be completely dispensed with and the engagement angle(s) can be attached directly to the wall, floor or cover plate, in particular using a U-profile as a support profile, whereby the free locking legs or a continuous free locking leg are parallel to a leg of the U-profile and leaving the locking

lation gap to this one.

Further preferred embodiments of the subject matter of the invention are set out in the remaining subclaims.

The invention is explained in more detail below using an embodiment and associated drawings. These show:

Fig. 1 a perspective assembly view for a packaging box with a base plate, a longitudinal wall and a front wall,

Fig. 2 a detail of a comb engagement between the corresponding engagement angles of a side part and the base plate in an enlarged view in section,

Fig. 3 an enlarged, perspective detail of the comb engagement of two associated pressure angles,

Fig. 4 an inside of a lid part for the packaging box according to Fig. 1,

Fig. 5 a mounting position of a front wall with a longitudinal wall in a corner area, seen from above,

Fig. 6 a packaging box in closed, fully assembled state,

Fig. 7 an angle rail with engagement angles attached to it in perspective view,

Fig. 8 an extruded profile for forming one locking leg of the engagement angle in conjunction with an angle rail in an integral one-piece design,

Fig. 9 an extruded profile with formation of the free locking leg of the pressure angle in integrally integrated

piece-by-piece design with a U-profile for direct connection of a number of locking elements (packaging crate) or for direct fastening to wall, floor or cover panels (without stiffening locking elements),

Fig. 10 a front wall with engagement angles mounted on angle rails in perspective view,

Fig. 11 a longitudinal wall with engagement angles mounted on angle rails in perspective view, and

Fig. 12 is a view similar to that in Fig. 2 for the second embodiment of the invention.

In the present embodiment, a cuboid-shaped packaging box 1 is explained as a packaging container, which can be assembled and disassembled practically without assembly tools, while at the same time being completely stable and safe for transport without additional fastening elements and can be dismantled without damage, whereby the individual elements of the packaging box 1 can also be returned to the packaging location after they have been dismantled.

The basic element of the packaging box 1 is a base plate 2, which determines the basic dimensions of the packaging box 1 and in the present embodiment has a rectangular geometry with longitudinal sides 2a, 2b and end faces 2c, 2d.

In the present embodiment (see Fig. 1 and 2) the base plate 2 is firmly connected to a pallet 3, without this being absolutely necessary. However, this creates a very stable transport unit for forklift transport and increases the overall stability of the assembled packaging box 1. The pallet 3 can be a Euro pallet or can be replaced, for example, by runners that are integrally formed with the base plate 2, whereby this has a

similar function, e.g. for unhindered forklift transport. In this embodiment, the base plate 2 consists of a multi-layer composite plate made of glued-together plywood layers with a thickness of approx. 20 mm.

The base plate 2 is mounted on the pallet 3 in such a way that the circumference of the base plate 2 is offset inwards from the circumference of the pallet 3, namely by a dimension that essentially corresponds to the thickness of the wall panels 6 of the side parts 5, explained further below, so that after the packaging box 1 has been assembled, these are flush with the pallet base 3.

In the present embodiment, engagement angles 4 are screwed along the long sides 2a, 2b in the area of the support blocks of the pallet 3, as is also shown in Fig. 2, which shows a detail for a locking comb engagement between an engagement angle 4 of the base plate 2 and an engagement angle 4 of a side part 5.

The engagement angle 4, the dimensions of which depend on the overall dimensions of the packaging box 1 and which consist, for example, of 2 mm angle iron, are screwed or riveted to the outside of the long side 2a or 2b of the base plate 2 with a fastening leg 4a, such that the other leg of the engagement angle, hereinafter referred to as the free locking leg 4b, extends inwards from the long side 2a or 2b, leaving a distance to the top of the base plate 2, to form a locking gap 7. The width of the locking leg 4b in the present case is approximately 20 mm.

As shown in Fig. 1, the base plate 2 in this embodiment has a rectangular shape with the two longitudinal sides 2a, 2b and the two end faces 2c, 2d, so that the end faces 2c, 2d are shorter than the long sides 2a, 2b. Longitudinal walls 8 are provided as side parts along the opposite long sides 2a, 2b, of which only

one is shown, wherein the opposite longitudinal wall preferably has the same structure.

The longitudinal walls 8, of which only one is shown in Fig. 1, are identical in their construction and are first mounted on the base plate 2 and its engagement angles 4.

In the present embodiment, the side parts 5 and thus also the longitudinal walls 8 each consist of a wall panel 6, on the inside of which, offset inwards, a frame square 9 made of locking elements 10 is attached, whereby these locking elements 10 form horizontal beams 11 or vertical beams 12. On the upper and lower horizontal beams 11 of each longitudinal wall 8, engagement angles 4 are also attached with their fastening legs 4 on the inside, e.g. screwed, at a distance corresponding to the distance of the engagement angles 4 on the base plate 2, in such a way that the free locking leg 4b of each engagement angle extends at a distance above or below the horizontal beam 11 towards the wall plate 6, whereby a locking gap 7 remains on the top or bottom of the horizontal beam 11, the same as that provided between the corresponding free locking legs 4b of the engagement angles 4 attached to the base plate 2 and the top of the base plate 2. In this way, the longitudinal wall 8 shown in Fig. 1 can be attached to the base plate 2 very easily and in a way that makes further stabilization during assembly unnecessary, by placing the longitudinal wall 8 on the base plate 2 in such a way that, as shown in Fig. 1, the engagement angles 4 that come into engagement with one another are located next to one another and then the longitudinal wall 8 is simply moved to the front left in Fig. 1 in the direction of the arrow so that the free locking legs 4b of the engagement angles 4 of the longitudinal wall and base plate come into engagement with one another on the long side 2a, as is shown schematically in section in Fig. 2 and in perspective representations in Fig. 3.

After this displacement intervention, in which the longitudinal wall

8 is additionally supported with its lower edge on the support blocks of the pallet 3 or with the resting outer sides of the locking legs 4b on the base plate 2, the longitudinal wall 8 is already held firmly on the base plate 2 via the free locking legs 4b of the engagement angles 4, which are in engagement with one another, in a stable manner and without any further support or mounting being required. The second longitudinal wall 8, not shown here and opposite the longitudinal wall 8, is designed in the same way and is received in a corresponding manner on the other longitudinal side 2b of the base plate 2.

As Fig. 1 shows, the longitudinal walls 8 have further engagement angles 4 on their vertical beams 12, here two each, which are screwed to the frame square 9 with their fastening leg 4a, while their free locking leg 4b leaves a distance, the locking gap 7, to the left or right upper side of the vertical beam 12 (see also Fig. 5). To close the box at the front sides, front walls 13 are provided, of which only the rear front wall 13 is shown in Fig. 1, which also has a frame square 9 made of horizontal and vertical beams 11, 12, whereby the upper horizontal beam 11 here essentially serves to support locking elements 10 of a cover part explained below, while the lower horizontal beam 11 limits the insertion of the front wall 13 downwards and sits on the base plate 2 in the fully assembled state. A closing strip 14 is attached to the upper horizontal beam 11.

The vertical beams 12 each carry engagement angles 4 in pairs corresponding to the arrangement of the engagement angles 4 on the vertical beams 12 of the longitudinal walls 8, the free locking legs 4b of which point inwards and leave a locking gap 7 to the adjacent vertical beam 12.

In Fig. 5, the process of inserting and locking an end wall 13 to a longitudinal wall 8 for a corner area is shown schematically.

shown in a diagrammatic manner, with the locking gap 7 shown enlarged. In fact, the locking gap 7 essentially corresponds to the material thickness of the engagement angles 4, so that the free locking legs 4b engaging with one another engage tightly in the respective associated locking gap 7. The end wall 13 thus connects the longitudinal walls 8 ready for assembly and it is possible to use the interior of the packaging box 1 already formed in this way for the lateral reception of packaging goods from the front end.

The front end wall 13 has a structure corresponding to that shown in Fig. 1 and 2, with the exception of a small notch on the upper edge of the upper horizontal beam 11 for inserting a cover part 14 shown in Fig. 4 in a bottom view.

The front wall 13 is thus mounted by, as shown in Fig. 5, it is placed on the already mounted, opposite longitudinal walls 8 in such a way that their engagement angles 4 come into comb engagement with the engagement angles 4 of the longitudinal walls 8, by the respective free locking legs engaging in the associated locking gaps, whereby the front wall 13 is pushed vertically downwards until the lower horizontal beam 11 rests on the base plate 2. The front wall 13 intended to form the front end of the packaging box 1, not shown here, is mounted in a corresponding way so that the packaging box 1 is stably closed on all sides around the circumference.

In the event that, as is often desired, the packaging box 1 is also to be closed on the lid side, a lid part 15 is provided, which is shown in a schematic bottom view in Fig. 4 and, in addition to a lid plate 16, has two locking parts 10 running in the longitudinal direction, to which engagement angles 4 with inwardly projecting, free locking legs 4b are attached in a distribution that corresponds to that of the engagement angles 4 on the upper horizontal bars

11 of the two longitudinal walls 8. In this way, the cover plate 16 can be easily pushed from the front end wall 13 onto the upper horizontal beams 11 of the two longitudinal walls 8, whereby the cover plate 16 rests on the upper edge of the wall panels 6 and the packaging box 1 forms a completely closed body at the end, as shown in Fig. 6.

The packaging box 1 forms an integral packaging unit that does not require any additional fastening elements or securing elements for transport. If necessary, a securing element that additionally secures the lid part 14 in its closed position, e.g. a locking pin that can be brought into engagement with an adjacent locking element and is secured against unintentional release, can be provided as the lid part 14.

The packaging box can be assembled by locking the engagement angles 4 with each other by simply plugging the side parts into each other and with respect to the longitudinal walls 8 with the base plate 2 and can be closed simply by pushing in the cover part, again with locking engagement of the corresponding engagement angles 4. Both assembly and disassembly can be carried out without special tools and can be carried out by one fitter without the need for additional holding devices or additional forces. The packaging box 1 can easily be disassembled into its individual parts and can be reused without further effort. If individual parts of the packaging box 1 are destroyed or damaged in a way that precludes further use, the packaging box 1 can be easily recycled, since the separation of wood and metal parts is easy using appropriate metal separators.

A further embodiment of the invention is explained below with reference to Figures 7 and 10 to 12.

This embodiment differs from the previously explained embodiment essentially in that the engagement angles 4 are not attached directly to the locking elements 10 (so that the engagement gap 7 is formed between the free locking leg 4b and the opposite flat surface (surface) of the locking element 10), but rather the engagement angles 4 arranged along one side of the base plate 2, the side part 5 or the cover part 14 are attached to an angle rail 16, preferably welded to it, such that the free locking leg 4b of the engagement angle 4 is opposite a leg 17 of the angle rail 16 screwed to the associated locking element 10, so that the locking gap 7 is always formed between two metal surfaces and for the sliding engagement of the free locking legs 4b of the engagement angle, a metal sliding guide is always required, formed by the leg 17 of the Angle rail 16 is available. In this way, even with frequent assembly and disassembly, there is practically no wear; the durability of the engagement angles 4 and their protection against external damage, also in connection with their fastening, is significantly improved and a metal sliding connection is always provided for locking the individual box walls. A sectional view of an engagement connection between the base plate 2 and a longitudinal wall 8 according to this further embodiment is shown in Fig. 12. The lower horizontal beam is provided with a milled recess in which a leg of the angle rail 16 runs and to which a fastening leg of the engagement angle 4 is fastened, preferably welded. The remaining leg 17 of the angle rail 16 surrounds the lower horizontal beam 11 on the underside. In the longitudinal direction, several engagement angles 4 are fastened to the angle rail 16, as shown in Fig. 7. The locking gap 7 is formed between the free locking leg 4b and the opposite leg 17 of the angle rail. The corresponding counter-engagement angle 4, which is attached to an angle rail 16 along the side edge of the base plate 2, engages in this gap in a corresponding manner.

For clarification, Fig. 7 shows a perspective view of such an angle rail 16 with engagement angles 4 welded to it. Fastening holes 18 (these are not shown here for the other leg of the angle rail 16) serve to fasten the angle rail 16 to a locking element 10.

Fig. 10 shows a front wall with angle rails 16 attached vertically to it and engagement angles 4 welded to the angle rails 16. Such a front wall is intended for a lidless packaging box 1.

Fig. 11 shows the corresponding fastening of three angle rails 16 with associated engagement angles 4 to a horizontal beam 11 and the vertical beams 12 of a longitudinal wall 8, which is shown here with its top side facing downwards, i.e. upside down, and serves to form a lidless packaging box. The engagement angles 4 connected to the upper, horizontally arranged angle rail 16 therefore serve in practical use for locking engagement with corresponding engagement angles of a base plate 2 in a manner corresponding to the first embodiment.

Of course, for a packaging box with a lid, the lower horizontal beam 11 in Fig. 11 could also be provided with an angle rail 16 and engagement angles 4 welded to it. For flush engagement, the upper horizontal beam 11 or the vertical beams 12 are provided with a lateral stepped milling so that the legs of the engagement angles 4 welded to the angle rails 16 are flush with their upper side with the upper side of the adjacent locking elements 10. The locking gap 7 is again formed between the free locking legs 4b and the leg 17 of the angle rails 16.

Further modifications regarding the formation of the pressure angles 4 or their integral combination with a

The corresponding angle rail 16 or a U-profile rail 19 are shown in Figs. 8 and 9 as examples of extruded profiles, which also serve to form the locking gap 7.

For reasons of accessibility and fastening, e.g. of the angle rail 16 according to Fig. 8, the locking leg 4b of the integral engagement angle 4 can have one or more recesses.

Fig. 9 shows an extruded profile that has the pressure angle 4
or the free locking leg 4b in an integral design with a U-profile rail 19, whereby such an engagement and fastening element can also be used to form packaging containers without it having locking elements 10. This means that U-profile rails and engagement angles 4 welded to them or formed integrally with them could be screwed or connected to the outer wall panels 6 or the base plate 2 or the cover plate 15 according to the first embodiment as fastening and assembly elements, without the corresponding panel parts then having an inner frame square
or locking elements forming horizontal or vertical beams
Between one leg 17 of the U-profile
and the free locking leg 4b is then one-story
the locking gap 7 is formed. Here too, recesses (not shown in detail in Fig. 9) can be provided in certain sections of the free locking leg 4b or the leg 18 of the U-profile in order to facilitate the fastening of the profile to corresponding plate parts.

Of course, such solutions, ie the connection of pressure angles 4 and profile rails 16 or
Extruded profiles including the use of
U-profiles, as shown in Fig. 7 to 9, can also be used to form packaging containers that consist only of locking elements (packaging crates) and

have no closed side walls, lid or base walls·

The packaging body according to the present invention is not limited to the embodiments shown; for example, it is also possible to form a packaging crate in this way, wherein the engagement angles are arranged at the ends of locking elements which mesh with one another and are optionally connected to one another via stiffening longitudinal and transverse bars.

The above-described embodiment was explained using a packaging box 1, which essentially consists of wooden parts with the metal engagement angles provided for locking.

Alternatively, it is of course also possible to use completely different materials for the packaging box, such as metal, in particular aluminum, or combinations of wooden parts with metal fittings. It is also conceivable to design the engagement angles as an integral piece with the associated locking parts or frame squares and/or to design them as a single piece with the outer plate parts. The free locking legs 4b of the engagement angles can also be provided as integral nose projections of metal profiles that form the locking parts, or, for example, in a plastic design as an integral extruded profile. The comb-like locking engagement of the free locking legs with one another is essential, which leads to a complete, inherently dimensionally stable design of the packaging body.

In a further embodiment of the invention, it is also possible in a simple manner to provide partition walls within the packaging box 1, which would be mounted in a corresponding manner on the opposite longitudinal walls 8 as the end walls 13. In this case, the frame squares 10 of the longitudinal walls 8 would be provided with a further, vertical locking part.

to which the corresponding engagement angles would be attached, leaving the locking gap. In order to insert the partition wall, the horizontal beams 11 would then each have an interruption or notch corresponding to the thickness of the partition wall.

Claims (17)

Protection claims 1. Packaging container with a base part and a plurality of side parts which can be brought into engagement with one another and with the base part, consisting of plates and/or locking elements, characterized in that at least one horizontally and/or vertically arranged engagement angle (4) is connected to the plates or locking elements (10), which is spaced apart from a free locking leg (4b) and arranged to an adjacent flat surface while leaving a locking gap (7) corresponding to at least one material thickness of the locking leg (4b), and the engagement angles (4) of base and/or side parts (2, 5) arranged at right angles to one another can be brought into locking displacement engagement with one another in pairs. 2. Packaging container according to claim 1, characterized in that the base part forms a base plate (2) and along two opposite outer edges (2a, 2b) of the same, engagement angles (4) are arranged in pairs opposite one another, the free locking legs (4b) of which are spaced apart and extend essentially parallel to the upper side of the base plate (2). 3. Packaging container according to claim 1 or 2, characterized in that each side part (5) has an outer wall plate (6) with a frame square (9) formed from locking elements (10) on its inner side of the wall plate (6). 4. Packaging container according to claim 3, characterized in that locking elements (10) of the side parts (5) form closed frame squares (9) made of horizontal and vertical bars (11, 12), wherein engagement angles (4) are arranged at least along the vertical bars (12). 5. Packaging container according to claim 4, characterized in that two mutually opposite longitudinal walls (8) are attached to the frame squares (9) along the circumference of the same to the Horizontal and vertical beams (11, 12) have arranged pressure angles (4). 6. Packaging container according to at least one of the preceding claims 2 to 5, characterized in that the frame square or opposite side parts are stiffened by further locking elements. 7. Packaging container according to at least one of the preceding claims 2 to 6, characterized in that the frame squares (9) with the engagement angles (4) of adjacent side parts (5) which can be mounted at right angles to one another, in particular of longitudinal and end walls (8, 13), are arranged offset inwards with respect to an outer edge of the associated wall panel (6), such that after mounting the side parts (5) on the base plate (2) and with adjacent side parts (5), the outer surfaces of the side parts (5) are flush with one another. 8. Packaging container according to at least one of the preceding claims 1 to 7, characterized in that a lid part (14) has a lid plate (15) with two locking parts (10) arranged along opposite outer edges and engagement angles (4) fastened to these, intended for locking engagement with upper, horizontally arranged engagement angles (4) of two opposite side walls (5), in particular opposite longitudinal walls (8). 9. Packaging container according to claim 1, characterized in that the base part has a plurality of spaced locking elements with engagement angles arranged at their opposite ends. 10. Packaging container according to claim 9, characterized in that a lid part has a plurality of spaced locking elements with engagement angles arranged at their opposite ends. 11. Packaging containers according to at least one of the preceding Claims 1 to 10, characterized in that the engagement angles (4) are arranged on angle rails (16), in particular are welded to them, and the angle rails (16) are fastened to the locking elements (10), in particular the horizontal or vertical bars (11, 12). 12. Packaging container according to claim 11, characterized in that a plurality of engagement angles (4) are arranged on a common angle rail (16) and the angle rail (16) is connected to a locking element (10), in particular a horizontal or vertical bar (11, 12). 13. Packaging container according to claim 11 or 12, characterized in that the locking gap (7) is formed between the free locking leg (4b) of the engagement angle (4) and a leg (17) of the angle rail (16). 14. Packaging container according to at least one of the preceding claims 1 to 13, characterized in that the engagement angle (4) is formed integrally in one piece with the angle rail (16) by an F-extruded profile. 15. Packaging container according to at least one of the preceding claims 1 to 10, characterized in that the engagement angle (4) is formed by an extruded profile which is directly connected to the wall, base or cover plate (6, 2, 16) and includes a U-profile (19). 16. Packaging container according to claim 15, characterized in that the engagement angles (4) are fastened to U-profile rails (19), in particular are welded to them, and the U-profile rails (19) are connected directly to the plates (2, 6, 16). 17. Packaging container according to claim 16, characterized in that a plurality of locking elements are connected to one another by an angle or extruded profile rail and with each angle or extruded profile rail at least one engagement angle is fastened to form a locking gap or is formed integrally with it.