DE2517086B2 - Stackable crate made of pressed flat molded parts - Google Patents

Description

The invention is based on a known non-slip, stackable, single use flat, in one piece from a mixture of lignocellulose-containing chips or fibers and a thermosetting one Binder molded composite crate.

Single-use boxes are increasingly being used as one-way packaging for shipping fruit, Fruits and vegetables used and destroyed at the destination.

Care should be taken to ensure that the cost of the packaging is the lowest possible fraction of the make up the value of the packaged goods and destroy them in an environmentally friendly manner and without leaving any residue, for example can be burned. Nevertheless, the box must be so strong that the most sensitive ones Goods are adequately protected. The box is also not allowed by its contents or by external influence Absorb moisture, so that possibly in this way the strength of the packaging material is reduced that it dissolves in transport and the content is lost.

There are already once usable boxes known (DE-OS 15 86 642), which are now integral with each other connected thin plates are formed from a development arranged in a plane consist and in one piece of a mixture of lignocellulose-containing chips or fibers and one thermosetting binders are pressed.

This well-known box has proven itself well for a number of uses, the nature of their However, the manufacture and construction of such a box are still too complex for some applications.

The object underlying the invention is therefore on the one hand to provide a non-slip stackable To propose a box, the individual parts of which have at least the same quality as the well-known box. In addition, the individual parts themselves should also be stackable so that they can be used to a large extent during shipping allow and thus cause low proportional transport costs, and they should be in a simple manner can only be assembled at the place where they are needed.

According to the invention, this object is achieved in that the box consists of one pair of two pairs Single plates of the same shape but possibly of different lengths and heights formed box frames and a flat, flat base and possibly a cover inserted in this form-fitting manner, in which the Panels at the abutting corner edges bent at an obtuse angle, overlapping one another Edge strips, narrow at their lower long edges, forming a step parallel to the plane of the plate have internally offset strips and above and parallel to the step with one or more slots or bulges are provided.

Embodiments of the invention are shown below with reference to FIGS. 1 to 9 explained in more detail It shows

F i g. 1 is a side view of an embodiment of the new crate,

F i g. 2 is a front view of the box according to FIG. 1, partly in section,

F i g. 3 is a plan view of the box according to FIGS. 1 and 2,

4 shows the detail of a sectional view of two boxes stacked on top of one another

F i g. 5 is a perspective view of another embodiment of the new crate;

F i g. 6 is a perspective view of a further embodiment of the new crate;

F i g. 7 is a plan view of one half of the new box in the embodiment according to FIG. 6 without bottom and Lid,

F i g. 8 is a side view of half of the new box in the embodiment according to FIG. 6 and

F i g. 9 shows a section through the overlapping edges of the new crate along the line AA in FIG. 7 in the area of the floor.

As can be seen, for example, from Figure 3, the box is made of two pairs of rectangular flat plates 1 and 2 essentially the same shape but composed of different dimensions. Any of these Board has edges 3 and 4, which are bent at an obtuse angle, on two edges composite panels overlap the edges of different panels. That kind of arranged plates can for example by means of clamps in a simple Weie form-fitting to Crate frames are united. This assembly process can be carried out at any location, including in the field before harvesting the fruit to be packaged.

The plates 1 and 2 are simple and inexpensive to manufacture, for example in such a way that several the same are pressed in one piece and then separated. Since the plates are also a is a flat molding, a large number of these can be stacked in a very small space.

In the box frame formed from the interlocking plates 1 and 2, can also a base 5 and, if necessary, a cover 6 can be used in a simple manner (FIGS. 2 and 4). lid and floor are made in one piece with the panels without additional fasteners molded fasteners held in the crate frame. To attach the bottom 5 have the the edges of the panels adjacent to the bottom of the box

an inwardly curved and parallel staggered shape, and also near the lower edge are the Bulges 7 arranged from Figure 4 can clearly be seen that this shape of the plates of the made of hard cardboard, hardboard, plywood or the like. Floor 5 made form-fitting in the box frame can be attached. In addition, FIG. 4 fit into each other like two boxes stacked on top of each other.

Although no cover 6 is often required because of the stacked boxes . ·: If necessary, a cover can also be placed in the box frame. For this purpose, the plates 1, 2 can either also be provided with indentations 7 on the upper edge, onto which the cover 6 is placed or ι. between which the cover 6 can even be inserted in a form-fitting manner, or have slots 8 into which the fastening means, which are designed as extensions and with which the cover 6 is provided, snap. y,

The base 5 can also have shaped sets that snap into slots 8.

For some applications it can also be useful to open the upper edge of the box - as shown in Fig. 5 visible - to be provided with recesses 9, which? -, on the one hand, ensure a sufficient supply of fresh air to the transported goods in the crate, which is particularly necessary for fresh fruit and vegetables, but on the other hand also a good one Allow access to the bottom edge of the box when stacking and unstacking, so that handles on the box can be dispensed with. Of course, in the plates 1, 2 for ventilation purposes one more or a smaller number of further openings 10 can be provided.

From FIGS. 6 to 9 there is a further embodiment which can be produced particularly economically and is therefore preferred visible in the new box. The box frame is also made up of panels il and 2, which have essentially the same shape but different dimensions. So are those who The panels 2 forming side walls are longer and narrower than the panels 1 forming the end walls.

As in particular F i g. 9 makes it clear that the edges of the plates adjacent to the box bottom are at least of a pair of plates - in Fig. 9 the pair of plates 2 - profiled in such a way that they - in F i g. 9 from above downward - parallel to the outer edge an inwardly directed bead 10, an outwardly directed Bead 11 and an inwardly curved and parallel offset edge 12 have.

For this purpose 4 sheets of drawings

Claims (2)

Patent claims: 1. Non-slip, stackable, single-use, flat, one-piece from a mixture of lignocellulosic chips or fibers and a thermosetting binder Box composed of molded parts, characterized in that it consists of one, of two Pairs of flat individual plates (1, 2) of the same shape but possibly of different lengths and heights Crate frame formed and a flat, flat base inserted in this form-fittingly (5) and, if applicable, cover (6), in which the plates are butt-jointed at the abutting corner edges Angled, overlapping edge strips (3, 4) on their lower lye edges narrow strips, offset inwards parallel to the plane of the plate, forming a sill (12) have and above and parallel to the step with one or more slots (8) or bulges (7,10,11) are provided. 2. Box according to claim 1, characterized in that the plates (1, 2) are provided with longitudinal slots (8) parallel to the upper edge.