EP0214143A1

EP0214143A1 - Crate

Info

Publication number: EP0214143A1
Application number: EP85903652A
Authority: EP
Inventors: Werner Meusch; Sieglinde Arnemann-Johnsen; Richard Michaelis
Original assignee: JOHNSEN Harald
Current assignee: JOHNSEN Harald
Priority date: 1985-02-27
Filing date: 1985-07-12
Publication date: 1987-03-18
Also published as: WO1986005159A1; AU4630685A; NZ215298A

Abstract

Cageot gerbable en matériau souple pliable, comportant des ergots de gerbage dans les coins et qui peut être posé sur le cageot situé au-dessous, les ergots de gerbage des quatre coins étant constitués de deux sections d'ergots reliées l'une à l'autre par une ligne de pliage et reliées au niveau de leurs autres côtés respectifs à la paroi latérale correspondante de manière à former lors du gerbage (c.à.d. en service) un support creux carré avec les coins du cageot, et à l'état vide, à pouvoir, grâce à une pression latérale en diagonale exercée de l'intérieur du cageot, surmontant ainsi une situation de point mort, se positionner à nouveau au niveau des coins du cageot, la ligne de pliage (10.2) entre les sections d'ergots coïncidant largement avec l'arête du coin correspondant.Stackable crate made of flexible foldable material, comprising stacking lugs in the corners and which can be placed on the crate located below, the stacking lugs of the four corners being made up of two sections of lugs connected one to the other other by a fold line and connected at their other respective sides to the corresponding side wall so as to form during stacking (i.e. in service) a hollow square support with the corners of the crate, and at the empty state, able, thanks to a diagonal lateral pressure exerted from the inside of the crate, thus overcoming a neutral position, position itself again at the corners of the crate, the fold line (10.2) between the sections of lugs largely coinciding with the edge of the corresponding corner.

Description

Climb

The invention relates to a stackable crate made of foldable flat material, which has stacking cams in the corners and on which the crate arranged below can be adjusted.

Containers for fruit, vegetables, young plants, meat, fish, baked goods or other goods are made from wood, chipboard, corrugated cardboard or plastic. Known plastic crates are injection molded or deep drawn in a very complex manner. Ridges usually have suitable stacking edges so that they can be stacked on top of one another without adversely affecting the material picked up. For this purpose, massive or hollow supports can be provided in the corners.

Transported from the manufacturer to the user, stored or transported by the user, the empty crates, also known as rotary stack crates, take up a considerable amount of space. They therefore require high storage and transport costs when empty.

With regard to storage and transport costs for manufacturers and users, crates made of corrugated cardboard offer the advantage that the blanks can be delivered and stored flat. However, such crates have a short lifespan because, even when coated, they are sensitive to moisture. They can therefore only be reused to a limited extent and are not space-saving.

The invention is therefore based on the object to provide a reusable stackable crate that Delivered as a flat blank and empty

Condition nested, i.e. can be stored and transported in a space-saving manner.

This object is achieved in that stacking cams are formed in the four corners, which consist of two cam sections, which are articulated to one another via a creasing line and are articulated on their respective other sides to the associated side wall in such a way that they are in the stacked state - use -State - form a square hollow support with the riser corners and, when empty, by applying diagonal pressure from the inside of the riser, overcoming a dead center position, can be put back on the riser corners, the crease lines between the cam sections largely coinciding with the assigned corner edge.

The tray according to the invention is made of foldable flat material. A stacking cam, which consists of two cam sections, which are each articulated to the side walls, is preferably arranged in each corner. The articulation is such that the cam sections can form a hollow support with the side walls in the corner areas. A stacking cam is also formed when the cam sections extend only over part of the height of the side walls, the cam sections advantageously being supported on the bottom of the tray. If pressure is exerted on the cam sections articulated in this way from the inside of the crate, the cam sections snap into the corner and lie on the associated side walls. As a result, the tray has quasi flat inner walls. The crate is designed in such a way that it is smaller in plan than in the outline at the top. This allows at the crates are almost completely nested in one another. They then take up a much smaller storage and transport volume than when stacking using the stacking cams. Before a tray is filled, the stacking cam is activated by simple pressure from the outside, ie it projects into the inside of the tray.

It has already been mentioned that in order to plug the trays together almost completely, they have to expand from bottom to top. It is therefore expedient if the side walls and stacking cams expand trapezoidally from the bottom to the top. At the same time, this increases the stability of the stacking cams.

The cut of the crate according to the invention is produced in one piece. However, the invention is not limited to a one-piece blank. At a. one-piece blank, it is advantageous according to the invention if a first cam section is articulated on one side wall and the second cam section can be fastened to the other side wall via a support tab. The attachment can take place, for example, by gluing or welding. The support tab also advantageously extends to the bottom of the crate. In the case of a trapezoidal configuration of the cam sections and when the support bracket extends to the floor (in the installed state), the material for the lower regions of the second cam section and the support bracket is to be removed from the associated side wall.

So that the side walls are held together at the corners, it is provided that a known retaining tab is articulated on the other side wall, the

ERSÄTZ3LÄ * T ISA / EP is placed against the outside of the adjacent side wall and can be attached to it. This attachment can also be done by gluing or welding. In order to be able to use the so-called out-fold method, an embodiment of the invention provides that starting from the base point of the crease line between the cam sections, an additional crease line is formed at an angle of 45 ° to this crease line up to the upper edge of that side wall, to which the first cam section is articulated. With machine gluing and. Folding the cam sections with the support flap and the remaining part of the side wall are folded onto the corresponding side wall and the floor by 180 °. Then the other side wall is also folded by 180 ° with the retaining tab on the back of the parts described. The support bracket is glued to the associated side wall and the retaining bracket to the outside of the associated side wall.

So that the stacking cams can be unfolded easily, an opening is provided in the transition from the holding tab to the associated side wall, through which an external pressure can be exerted on the crease line between the cam sections.

So that the stacking cam is stabilized and the support is increased, stabilizing tabs can be articulated on the upper ends of the cam sections, which are interlocked with one another in the erected state.

With relatively long side walls there is a risk of bulging. In order to counter this danger, a further embodiment of the invention provides that on opposite. Side panels are hinged to the sides, the anchoring tabs at the corners have in the anchor slots of the other

Sidewall can be anchored. When the crates are erected, the frame flaps are folded inwards by approximately 90 ° with respect to the assigned side walls. At the same time, the anchoring tab is anchored in the anchoring slot.

According to a further embodiment of the invention, the length of the frame flap is shorter than the overall outer length of the crate. As a result, a tension is exerted between the other opposite side walls, which also causes them to stabilize.

According to a further embodiment of the invention, the anchoring slot is reversely T-shaped and receives an anchoring tab which is molded onto the frames via a twistable neck. The facing of the benach¬ disclosed climbing corner portion ^'of the crosspiece of the T is preferably longer than the other transverse web portion. The longitudinal web of the T preferably merges with a curve into the two crossbar sections, the curve with the longer crossbar section having a larger radius than the other curve. If the frame is folded 90 ° toward the inside of the riser, and at the same time the anchoring flap is twisted by a further 90 °, the neck can be inserted into the anchoring slot from above. Once at the crossbar of the T, the anchoring tab is twisted by 90 °. Due to the different curves and the different lengths of crossbar sections, it snaps into the crossbar of the anchoring slot. This process can easily be carried out by hand. The frame flap can be released just as easily if the crates are to be nested in one another when the stacking cams are pressed in. Instead of gluing during erection, the parts of the trays to be connected to one another can also be connected to one another manually by means of suitably designed locking sections. Unwanted movements of all the parts involved can be virtually ruled out by suitable configurations. The mobility of the stacking cams is not reduced, nor is their strength. For example, the support bracket can be fixed with the aid of a locking bracket that is locked in a slot in the associated side wall. The retaining tab can also be connected to the associated side wall via a pluggable locking connection.

The hollow support according to the invention has three fully supporting right angles, which are preferably the. full-height of the _S have increasing and then its four side surfaces and with three right angles up directly on the tray bottom.

The fourth side surface is formed by at least two thirds of the height of the tray from the retaining tab, which is also firmly connected to the side of the tray assigned to it. In this way, the required transverse stability is also achieved and ensured.

The stacking cams are advantageously provided with centering guides formed as quarter circles on two of their upper edges, each starting from the angular regions on the longitudinal or end faces. These centering guides have the effect that the stacked, filled crates remain in the solder and cannot move because the crate bottoms are less than the upper edges due to the taper.

The radius of a quarter circle can be half the difference in length or width from the bottom to the top

REPLACEMENT LEAF match the climb. This prevents the stack from tipping over.

Flat material made of plastic is particularly suitable for the tray according to the invention. In this

Context should be mentioned as advantageous so-called double-wall sheets, which are made, for example, of polypropylene. In the case of the double-wall sheets, two outer layers or outer layers are connected to one another by spaced-apart transverse webs. In terms of its structure and behavior, this material is best compared to corrugated cardboard. Compared to corrugated cardboard, however, it has a much higher stability and a better durability as well as a complete insensitivity to water or moisture.

In connection with such a material, it is advantageous according to the invention if the outer layers are welded to one another at the cut edges of the cut approximately in the center of the caliber of the double-wall sheet. By deforming the two outer layers in such a way that they meet approximately in the middle, and by welding the outer layers placed against one another, the cut edge is completely closed. This prevents dirt particles and / or moisture from penetrating into the hollow chambers of the double-wall sheet. For hygienic reasons, it is advisable to prevent such penetration. Welding the outer layers completely prevents such penetration.

It is understood that such a formation of cut edges of blanks from double-wall sheets is not limited to the tray according to the invention described above. Rather, it is applicable to any container made of this material. A further embodiment of the invention provides in this connection that along the bending lines of the blank the outer layers are welded to one another approximately in the caliber center of the double-wall sheet. It has been shown that bending lines designed in this way to unfold the blank into finished containers facilitate this process and define geometrically exact lines at the correct place.

In one embodiment of the tray described above, the support tab and / or the retaining tab can be glued to the associated side walls of the tray. Alternatively, they can be welded to one another when using double-wall sheets. In this context, an embodiment of the invention provides that the support bracket and / or the retaining bracket is welded to the associated side wall and that in the welded area the outer layer in each case is welded against it in the plane of the inner outer layer. During the production of the blank, the areas to be welded are preformed in such a way that the outer layer in each case is deformed into the plane of the inner outer layer and are welded to one another over both layers. When the parts are welded together, four outer layers are close together.

By welding all the cut edges of a blank, the air is trapped in the hollow profile of the double-wall sheet. The tightly enclosed air stiffens the material.

The invention is explained in more detail below with reference to drawings. FIG. 1 shows the top view of part of a one-piece cut of the manually erectable crate according to the invention.

FIG. 2 shows the top view of part of a one-piece cut of the crate according to the invention, modified for gluing.

FIG. 3 shows a perspective view of the inside of the corner of an erected tray with a cut according to FIG. 1 with the stacking cam folded out into the interior of the tray.

FIG. 4 shows a view similar to FIG. 3, but with the stacking cam pushed back.

Figure 5 shows in perspective the outside of a corner of a tray from the blank according to Figure 2 ', but with frames.

FIG. 6 shows a detail from FIG. 5.

FIG. 7 shows the top view of a part of a blank, similar to that according to FIG. 2, the parts of which are welded.

FIG. 8 shows a section through the blank according to FIG. 7 along the line 8-8.

Figure 9 shows a section through the blank according to

Figure 7 along the line 9-9.

FIG. 10 shows a section through the blank according to FIG. 7 along the line 10-10. FIG. 11 shows a section through a welded area of blank parts according to FIG. 7.

The blank according to FIG. 1 has a rectangular base part 1, to which longitudinal sides 2 are articulated on opposite sides via creasing lines. End faces are articulated on the two other opposite sides of the base part 1. A retaining tab 4 is articulated to the end wall 3 via a crease line 4.1. A locking tab 5 is articulated on the retaining tab 4 via a crease line 5.1. Locking sets 5.4 are formed by opposite incisions 5.2 and crease lines 5.3. A second creasing line 4.1 runs parallel to the creasing line 5.1 in the holding tab 4. A locking pin 7 is formed by a U-shaped cut on the side of the creasing line 4.1 facing away from the creasing line 5.1.

A slightly curved receiving slot 9 is formed in the longitudinal wall 2. A tongue 9.2 is formed by two parallel incisions 9.1 running approximately perpendicular to the slot 9 in the direction of the end of the longitudinal wall 2. A right-hand recess 8 is formed next to the tongue. When setting up, the locking tab 5 is inserted through the receiving slot 9, the locking lugs 5.4 being pushed through in the areas beyond the cuts 9.1. With a slight pressure on the locking tab 5, the tongue 9.1 is deformed somewhat inwards, so that the locking lugs 5.4 are against the inside

Lay longitudinal wall 2. The arch shape supports the strength of the connection. The locking pin 7 has previously been inserted into the recess 8. In this way, a connection is created that is secure against tension and pressure from the inside (see also FIG. 3). A stacking cam 10 is articulated to the longitudinal wall 2 via a crease line 10.1. The creasing line runs at a somewhat smaller angle than 90 ° to the creasing line between the bottom part and the longitudinal wall 2. The movable stacking cam 10 consists of two cam sections 11, 12 articulated to one another via a creasing line 10.2. The creasing line 10.2 runs in such a way that both cam sections 11 are trapezoidal. Since the cam section 12 is congruent with the cam section 11 and is trapezoidal, its lower region, as can be seen from FIG. 1, must be partially cut out of the material of the end wall 3, and there are stabilizing tabs in the upper region on the cam sections 11, 12 13, 14 articulated. They have the same shaped incisions 14.1 and 13.1, respectively, so that they can be brought together in a plane in the set-up state and thus hold each other.

A support tab 15 is articulated to the cam section 12 via a crease line 12.1. It tapers in the lower area to its base, so as not to use too much material from the end wall 3. The support tab has an approximately trapezoidal recess 15.1, which has a narrow cross section, as a result of which two cams 16 are formed. The depth of the recess 15.1 is slightly larger than the width of the support tab 15 in this area. A receiving slot 17 is formed in the cam section 12, the side of which facing the recess 15.1 is formed by an extension of the crease line 12.1. The opposite side is arched at 17.1 in the direction of the previously mentioned side to approximately a material thickness. At the opposite ends, at a distance and parallel to the crease line 12.1, incisions 17.2 are formed, in which area the receiving slot 17 is widened accordingly. In the Stirnsei ^'tenwand 3 is a by cutting

Locking tab 18 incorporated, which is pivotally connected to the end wall 3 via a crease line 18.1. The locking tab 18 has side wings 18.2. It is further divided by two crease lines 18.3, which start from the ends of the crease lines 18.1 and meet in the arrowhead. The wings 18.2 are therefore pivotable about the crease lines 18.3. In the set-up state, the support tab 15 lies against the inside of the front side 3. The locking tab 18 is inserted into the receiving slot 17, overlapping the web of the support tab 15 remaining through the recess 15.1. This has a width on both sides of the protrusion 17.1 which corresponds approximately to two to three times the material thickness. The locking tab 18 without the wings 18.2 has a width that approximately corresponds to the width of the recess at its end. The cams 16 are therefore at a smaller distance than this width, so that they counteract pivoting of the locking tab when inserted into the slot 17 (see also FIGS. 3 and 4). The wings 18.2 pass through the incisions 17.2 and then spring against the rear side of the cam section 12. Due to the diverging sides of the receiving slot 17 from the crease line 12.1, the locking tab 18 is increasingly locked when a pull is exerted thereon. This connection is also secured against train and pressure.

From Figure 3 it can be seen that in the position shown, the cam sections 11, 12 with the longitudinal wall 2 and the end wall 3 and the retaining tab 4 form a hollow support in the corner region, the upper end of which is recessed relative to the upper edges of the walls 2, 3. The stabilizing tabs 13, 14 are interleaved, and their levels are approximately parallel to the level of the floor 1. In this form, several crates can be divided one above the other, the floor 1 being supported in each case on the stabilizing lights 13, 14. Since the cam sections 11, 12 are supported on the floor 1, they each carry the upper crate.

By pressing the crease line 10.2 of the corner of the stacking cam 10 protruding into the inside of the cradle, the cam sections 11, 12 can be folded against the inside of parts 2, 3 and 4 by slightly deforming all the parts involved, overcoming a dead center in an intermediate position) , as can be seen from Figure 4. In this way, the stacking cams 10 no longer protrude into the interior of the crates, and the crates can be nested almost completely in one another to save space. To restore the stacking cam 10, pressure is exerted from the outside via an opening, which is denoted by 19 in FIG. 1, so that the cam is removed. Snap sections 11, 12 back into the position shown in FIG. 3.

FIG. 2 shows the corner area of a one-piece cut for a crate in which the corner connection is made by gluing. The same parts as shown in Figure 1 are provided with the same reference numerals. Modified parts are marked with a dash. Only the latter will be discussed below. It can be seen that the holding tab 4 ^{1 has} no locking tab. It is bonded to the outside of the side wall 2. The support tab 15 'is also connected to the inside of the end wall 3 by simple gluing. A creasing line 30 extends from the base point of the creasing line 10.1 into the longitudinal wall 3 and forms an angle of 45 ° with the creasing line 10.2. During the mechanical gluing process (Out-Fold) the part of the blank according to FIG. 2 is first folded over the crease line 30 along this crease line 30 onto the side walls 2 and bottom 1. The end wall 3 is then folded with the holding flap 4 'onto the upward-facing side of the folded part described. A glue application is provided on the corresponding areas of 15 and 4, so that a corner connection according to FIG. 5 is created. The stack cam 10 is actuated in the same manner as described for FIGS. 1, 3 and 4.

In FIG. 2, a frame tab 31 is articulated to the longitudinal wall 2 via a crease line, which has a pin 31.1 at the end facing the stacking cam 10. This is inserted into a slot 11.1 in the area of the crease line between the cam section 11 and the stabilizing flap 13 when the crate is erected and the frame flap 31 is folded through 90 ° into the interior of the crate. ^'*

FIG. 5 does not show the frame tab 31, but a frame tab 31 'which has an anchoring tab 33 at the ends, which has a narrower neck

34 is hinged to the tab 31 '. In the end wall 3 an anchoring slot 35 is formed, the shape of which

Figure 6 can be seen in more detail. The anchor slot

35 has the shape of a T. turned upside down. The longitudinal web 35.1 is extended towards the upper edge at 35.2. The crosspiece consists of a longer section 35.2 and a shorter section 35.3. The longer section 35.2 is directed towards the corner of the riser 2. A curve 35.4 to the longer section 35.2 has a larger radius than a curve 35.5 to the shorter section 35.3. When erecting, the frame flap 31 'is folded inwards by 90 °, in accordance with arrow 36. Ankerungslasche- 33 is pivoted again uπ \ 90 °, which is indicated by a corresponding. Twist the neck 34 is done. The neck 34 thereby passes ung 35 in the longitudinal web of the 35.1 Verankerungsausneh Subsequently, the anchor flap 33 deformed back into the plane of Zargenlasche 31 ^•. This is facilitated by the gentle curve 35.1. The anchoring tab 33 has the position shown in broken lines.

The anchoring tab is released in the reverse manner in the manner described.

The length of the frame tab 31 * is slightly less than the length of the side wall, so that a pull is exerted on the end faces. These are therefore additionally stabilized by the frame tabs 31 '.

Any flat material can be used as the material for the tray described, provided it has a certain elasticity. Foldable plastic films, _* .here, especially also foldable hollow chamber material made of polypropylene are particularly advantageous.

The blank according to FIG. 7 is constructed similarly to that according to FIG. 2. Therefore, the same parts are provided with the same reference numerals. Only tabs 13, 14 and 31 have ceased to exist. The cam sections 11, 12 have rounded transition sections 11.3 and 12.3, respectively, with which they merge into the upper edges of the side wall 2 and the support tab 15 '. These serve as centering guides when stacking the trays on the stacking cams. They essentially limit the stacking area at the height of the top edges of the stacking cams to the size of the footprint of the webs. The trays are then automatically stacked on top of each other and held.

The material for the cut according to Figure 7 is e.g. a double-wall sheet as shown in section in Figure 8 and e.g. is made of polypropylene.

The web double plate has two outer layers or layers 40, 41 parallel to one another, which are connected to one another by parallel transverse webs 42 arranged at a distance from one another. A double-wall sheet according to FIG. 1 is extruded in one piece. The total thickness is e.g. 3 mm, while the layers 40, 41 and the webs 42 have a thickness of about 0.1 mm. Such a material is extremely economical to manufacture and process and enables great stability. In addition, the material is insensitive to water and moisture. Containers made from this material can therefore be used several times and also cleaned. In addition, it can also be used on food.

In some cases it is undesirable ^'that moisture and / or dirt into the cavities of the hollow profile penetrating ein¬. Therefore, all cut edges of the blank according to FIG. 7 are shaped as shown in FIG. 10. The outer layers 40, 41 are welded together, as shown at 43. The interconnected outer layers 40, 41 lie in the center of the caliber. In this way, a completely airtight and moisture-tight edge is achieved. In FIGS. 9 and 10, welding is shown in each case parallel to the transverse webs 42. It goes without saying that welding perpendicular to the transverse webs 42 takes place in the same way. It can be seen from FIG. 10 that, if possible, the welding of the two outer layers 40, 41 takes place with a very smooth transition. The length of the deformed section is greater than the distance between the cross webs 42 from each other.

All bending or creasing lines shown in the blank according to FIG. 7 have a shape in cross section, as shown in FIG. 9. In the middle of the caliber, the outer layers 40, 42 are welded together, as shown at 45. The bending lines formed in this way allow the cutting to be processed easily and set up correctly, both mechanically and by hand.

In FIG. 7, the holding tab 4 * is provided with a welding area 50 which is welded to the area 51 of the side wall 2 on the outside thereof. The support bracket 15 *, the lower end of which is taken from the material of the side wall 3 so that it can stand up on the floor 1, has a welding area 52, and the side wall 3 has a corresponding welding area 53. The areas to be welded are in accordance with FIG. 11 shaped. With a very soft transition, the outer outer layer 40 or 41 is placed against the inner outer layer 41 or 40 and welded to each other when the retaining tab 4 'and side wall 2 are overlapped, as can be seen in FIG. 11. In the plan view according to FIG. 7, the area 51 is therefore concave from above and the area 50 is concave from the bottom. The welding area 52 of the support bracket 15 'is concave from above and the welding area 53 in the side wall 3 is concave from below.

It has already been mentioned that the welding of parts of containers from double-wall sheets does not occur a tray of the described embodiment is limited.

Claims

PATENT CLAIMS

1. Stackable crates made of foldable flat material, which has stacking cams in the corners and can be placed on the crate arranged underneath, characterized in that stacking cams (10) are formed in the four corners, which consist of two Noσken sections (11, 12) are articulated to each other via ^' a creasing line (10.2) and are articulated on their respective other sides to the associated side wall (2, 3) in such a way that they form a square hollow support with the riser corners in the stacked state - in the state of use - and in the empty state by Lateral diagonals exerted inside the case

Pressure, overcoming a dead center position, can be put back on the riser corners, the crease line (10.2) between the cam sections largely coinciding with the assigned corner edge.

2. A crate according to claim 1, characterized in that the stacking cams (10) expand trapezoidally from bottom to top.

3. crate according to claim 1 or 2, characterized gekenn¬ characterized in that a first cam portion (11) is articulated on one side wall (2), the second cam portion (12) via a support tab (15, 15 ') on the other side wall ( 3) can be fastened.

4. Crate according to one of claims 1 to 3, characterized in that the cam sections (11, 12) extend to the crate bottom (1).

5. crate according to claim 2 and 4, characterized gekenn¬ characterized in that the lower region of the second cam portion (12) is cut from the material of the associated side wall (3).

6. Crate according to one of claims 3 to 5, characterized in that the lower region of the support tab (15, 15 ') is cut from the material of the other side wall (3).

7. crate according to one of claims 1 to 6, characterized in that on the other side wall (3) a retaining tab (4, 4 ') is articulated, which is placed against the outside of the adjacent side wall (2) and can be attached thereto.

8. crate according to claim 7, characterized in that an opening (19) is formed in the transition from Haϊtelasche to zuge¬ assigned side wall,

9. Rise according to one of claims 3 to 8, da¬ characterized in that the support tab (15 ') and the retaining tab (4 ¹ ) are fastenable by gluing bar.

0 crate according to claim 9, characterized in that starting from the base of the crease line (10.2) between the Noσkenabschnitte (11, 12), at an angle of 45 ° to the crease line (10.2) a crease line (30) to the upper edge of that side wall

(2) to which the first cam section (11) is articulated.

11. Rise according to one of claims 1 to 10, characterized in that at the upper ends of the Cam sections (11/12) stabilizing tabs (13, 14) are articulated, which are interlocked with each other in the erected state.

12. A crate according to one of claims 1 to 11, characterized in that the frames (31 ') are articulated on opposite side walls, which have anchoring tabs (33) at the ends, which slots in anchoring slots (35 ) the other side wall (3) can be anchored.

13. A crate according to claim 12, characterized in that the length of the frames (31 ') is shorter than the total outer length of the crate.

14. A crate according to claim 12 or 13, characterized gekenn¬ characterized in that the anchoring tabs (33) at the base of the anchoring slot (35) are lower than the crease line between the side wall (2) and the frame tab (31 ')

15. A crate according to one of claims 12 to 14, characterized in that the anchoring tabs (33) are articulated via a twistable neck (34) to the frame tabs (31 ') and the anchoring slot (35') is inverted T-shaped .

16. A crate according to claim 15, ^" characterized in that the section (35.2) of the transverse web of the T facing the adjacent side (2) is longer than the other section (35.3), the longitudinal web (35.1) of the T in a curve into the Crossbar sections (35.2, 35.3) passes, the

Curves (35.4) of the longer crosspiece section (35.2) has a larger radius than the other curve (35.5).

17. A crate according to one of claims 3 to 9 or 11 to 16, characterized in that a movable locking tab (18) from the side wall (3) is cut out and hinged to it, which "in a receiving slot (17) of the second

The cam section (12) can be locked, which adjoins the crease line (12.1) between the second cam section (12) and the support tab (15).

18. A crate according to claim 17, characterized in that the receiving slot (17) on the side facing away from the crease line (12.1) has incisions (17.2) which enlarge the insertion width and wings (18.2) are integrally formed on the locking tab (18) that in the area of incisions

(17.2) can be inserted into the receiving slot (17) and lie against the other side of the second cam section (12).

19. A crate according to claim 17 or 18, characterized in that the receiving slot (17) is trapezoidal with side edges diverging from the crease line (12.1) and the longitudinal edge of the receiving slot (17.) Facing away from the crease line (12.1) ) in the direction of the crease line (17.1).

20. A crate according to claim 18 or 19, characterized gekenn¬ characterized in that the wings (18.2) over creasing lines (18.3) pivoted obliquely to the locking tab (18) are articulated.

21. Rise according to one of claims 17 to 20, characterized in that £ in the support tab (15) has a recess (15.1) for receiving the

Locking tab (18) is provided, the width of which is greater than half the width of the support tab (15) in this area.

22. A crate according to claim 21, characterized in that the recess (15.1) has a narrow cross-section, the dimension of which is somewhat less than the width of the locking tab (18) outside the wings (18.2).

23. Rise according to one of claims 7 to 22, da¬ characterized in that on the retaining tab (4) a locking tab (5) is articulated, which can be inserted and locked in a locking slot (9) of the first side wall (2).

24. A crate according to claim 23, characterized in that on the locking tab laterally locking lugs (5.4) are formed, which

Reach behind the side wall (2) next to the locking slot (9), the locking slot (9) having elongated incisions for introducing the locking tab (5) with side locking tabs (5.4).

25. A crate according to one of claims 1 to 14, characterized in that the upper edges of the cam sections (11, 12) to form centering guides (11.3, 12.3) to the upper edges of the assigned side walls (2, 3) rising

Have sections which are preferably quarter-circular.

26. tray, in particular according to one of claims 1 to 25, characterized by the use of an extruded double-wall sheet made of plastic, the outer layers (40, 41) of which are welded to one another at the cutting edges of the blank (10) approximately in the middle of the double-wall sheet.

27. A crate according to claim 26, characterized in that along the bending lines of the blank (10), the outer layers (40, 41) are welded to one another approximately in the middle of the web double film.

28. puff pastry according to claim 1, 3, 7 and 26, characterized in that the support tab (15 ') and / or the retaining tab (4') is welded to the associated side wall (3 or 2) and in the welded area (52, 53 or 50, 51) the outer layer (40 or 41) in the plane of the inner layer

(41 or 40) is welded against them.