DE2400049A1 - TRANSPORT CASE MADE OF PLASTIC, IN PARTICULAR FOR BOTTLES - Google Patents

Description

12/22/1973 My files; 366

SPUMALIT-ANSTALT, Untere Roßfeldstraße 431, S c h a n (Liechtenstein)

Transport boxes made of plastic, in particular for bottles

The present invention relates to a transport box made of plastic, in particular for bottles, consisting of a floor and four side walls, which merge into hollow corner pillars at the corners.

Such transport boxes are known. They have proven themselves and are used everywhere in large numbers. To increase the stability in the vertical direction, these transport boxes have corner pillars. Through the Corner pillars, the box gains such a high level of stability that the loaded boxes are stacked in very high stacks can be.

However, the corner column production causes difficulties, if the transport boxes must have a® large overall height,

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240Q049

because the goods packed in them are high. If, for example, transport boxes are made for 2 liter bottles, so the production of the corner pillar causes difficulties. Because the plastic transport boxes are in one Piece made by injection molding. Since the corner pillar must be hollow, a core engages in the tool the inside of the hollow injection mold at the point where the hollow corner pillar is to be created. With large heights of transport boxes, it is very difficult to get the core to give such a high stability that it is immovable inside the form with an accuracy of a tenth of a millimeter it is certain when it is filled with the hot, liquid plastic under pressures of 100 and more atmospheres will. At the moment when the injection mold is filled with plastic, long cores give way under the high pressures slightly to the side. But since the wall thicknesses in such transport boxes are only 2 to 3 mm with long cores, a slight evasion is very disadvantageous, as this changes the wall thicknesses so that that the box is unusable because it does not have the required stabilities.

The object of the present invention is to provide a corner pillar design for transport boxes of greater overall height to be found in which - although the corner pillar is hollow, cores do not run in the longitudinal axis of the corner pillar must be used.

The invention consists in that the corner column, whose wall facing the box interior is continuous, is subdivided into compartments by several partitions arranged transversely to its longitudinal axis, which alternately

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to the one and the other side wall are open to the outside.

With this corner pillar design, cores can be omitted which are located in the longitudinal direction of the corner pillar in the injection mold stand. Rather, core pieces are attached to the outer side wall of the mold, which in the transverse direction reach into the hollow corner column to the longitudinal axis of the hollow corner column. The hollow corner column is thereby in individual Subdivided compartments, the wall thicknesses of which can be precisely manufactured. These individual compartments give the hollow corner column high stability. Since the compartments alternate to one and the other side wall to the outside are open, buckling of the hollow corner column is not possible.

It is advantageous if each compartment of the hollow corner column next to the two partition walls and the box interior facing wall consists of two parallel walls of unequal length. Such subjects can be easily produced.

This hollow corner column training can at the same time serve, the transport boxes do not slip next to each other to stack, which is important if the boxes on palletizing machines are to be several next to each other be gripped by grippers. However, this also matters when the boxes are on their one Side wall are placed and in this way one on top of the other can be stacked to form a shelf. One way to prevent the hollow corner pillars to form a lateral slippage is that the longer wall of the HöhIecksäulenfach

two parallel to the partition walls offset by the wall thickness arranged ribs.

Another possibility is that the partition walls are diametrically opposite hollow corner columns of the same type Have height, while the partition walls of opposite hollow corner columns are offset by one wall thickness, and that the long outer walls of the hollow corner column compartments protrude from the plane of the side walls.

The essence of the present invention is shown schematically below with reference to in the drawing Execution examples explained in more detail. Show it:

Figure 1 is a view of a bottle crate from the side,

FIG. 2 shows a part of a view of an identical bottle crate to be stacked next to it,

Figure 3 shows a cross section through a bottle crate of Figure 1,

Figure 4 is a view of another transport box,

FIG. 5 shows a section through the transport box of FIG.

The transport box of Figure 1 consists of a base 1, side walls 2 and corner pillars 3. The corner pillars are divided into several compartments by partitions 4. Each corner column 3 has one facing the box interior Wall 5 on. Furthermore, each corner pillar has a plurality of outwardly directed wall pairs 7, 8 or 7A and 8A.

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These parallel pairs of walls 7A, 8A run in a direction perpendicular to the wall pairs 7, 8. The wall pair 7A, 8A belongs to a hollow corner column compartment, which is located above and below a hollow corner column compartment, the parallel pairs of walls 7, 8 in one direction run perpendicular to the direction of the pair of walls 7A, 8A.

In Figures 1 to 3, the long outer walls 7 and 7A of the cave corner column compartments by a wall thickness to the outside arranged offset over the plane of the side walls. This ensures that they are in openings of hollow corner column compartments of an adjacent bottle crate can reach into it. If you look at the boxes of Figures 1 and 2 pushes against each other, you can see this clearly.

In Figure 3, another possibility is shown to be able to place boxes next to one another that they slip It does not stand up even if they are gripped in a long row by two outside grippers will. Here ribs 9 are provided which are offset by a wall thickness parallel to the partition walls on the Outside the long walls Io are arranged. These ribs grip when two boxes are close together are stacked in the openings of the hollow corner pillar compartments of the neighboring box.

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Claims (4)

Protection claims: 1. Plastic transport box, especially for tabs, consisting of a base and four side walls, which merge into hollow corner pillars at the corners, characterized, that the corner column, whose wall facing the box interior is continuous. through several across to hers Partition walls arranged along the longitudinal axis are divided into compartments that alternate between one and the other Sidewall are open to the outside. 2. Transport box according to claim 1, characterized in that that each compartment of the hollow corner column next to the two partitions and facing the box interior Wall consists of two parallel walls of unequal length. 3. Transport box according to claim 1 and 2, characterized in that that the longer wall of the vertical column compartment two " bears ribs arranged parallel to the partition walls offset by the wall thickness. 509828/0365 2400043 4. Transport box according to claim 1 to 3, characterized, that the partitions are diametrically opposite Corner pillars have the same height, while the partition walls of opposite hollow corner pillars by a wall thickness are offset and that the long outer walls of the hollow corner column compartments step out of the plane of the side walls. 50982Ö / Q3G5