DE3438685A1 - Stackable box, produced from a sheet of semi-rigid material - Google Patents

Abstract

The invention relates to the technical field of packaging and relates specifically to a stackable box produced from a sheet of semi-rigid material. The invention provides a box having transverse walls, longitudinal walls, and additional flaps which correspond to the said walls and are all produced by cutting and folding the edges of a sheet of semi-rigid material. The said additional flaps have first sections which are firmly connected to the said transverse walls, can be folded perpendicular thereto, and can be positioned on the inside of the longitudinal walls. Provided on the said first sections is a widening end piece which can be inserted in the notches on the bottom of the box. Said end piece can finally be folded below the said bottom and parallel thereto and forms a support foot. <IMAGE>

Description

DESCRIPTION OF THE INVENTION

The present invention relates to a stackable box produced from a sheet of semi-rigid material, e.g.

Cardboard or similar material.

As is known, there are currently many types of cardboard containers with various areas of application in retail. The heavy-duty cardboard boxes usually have a profile that is normally found for fruits, vegetables, and the like Products used looks very similar to boxes.

The use of cardboard boxes or crates instead of containers Wood has a number of advantages, not the least of which is its low cost and the low weight.

This use is not yet general for two reasons spread.

First, today's cardboard boxes are a bit weak and not able to take heavy loads. Second, cardboard boxes bring big ones Problems with stacking, as these are not stored exactly on top of each other can and also a not smooth but step-shaped profiled on the flanks, have an external profile, which facilitates the transport of tight-fitting boxes is severely affected.

Some known technical solutions did improve the one described above Location, but only achieved partial solutions and hardly any satisfactory results.

E.g. are completely smooth on both the lid and the side flanks Boxes known. These boxes allow a smooth transport in the warehouse, however difficulties arise in the execution of stable stacks of boxes on top of each other.

Another known technical solution is stepped profiled Pre-nesting to form a mutual engagement surface and in this way make stacking easier. However, these boxes represent a negative solution in relation to the transport on one level, since the step-shaped Areas not only in those above, but also in those next to them Intervene boxes.

All of these boxes ultimately point in relation to the one on top of the other Boxes on relatively thin and not robust support surfaces: especially what When it comes to bending along vertical surfaces, only the thin sidewalls prevent it a curvature of the same.

Another negative aspect of all of the boxes mentioned lies in the fact that these are not stable in the upright position. you will be held in an upright position exclusively by gluing, the glued points not can be properly executed and the heavy loads that these boxes are exposed, sometimes not withstand.

When the adhesive is suspended, the boxes open and sweep back to the starting position, i.e. a flat sheet from which they were created.

Under these conditions it is the purpose of the present invention a stackable box made from a sheet of semi-rigid material develop, thus overcoming the difficulties described above substantially can be.

Within the scope of this general purpose lies an important purpose of the Invention is to develop a box that is able to deal with the opposing Overcoming the requirement of stacking and transport on one level by Stepped surfaces on the top and smooth surfaces on the side will.

Another purpose of the present invention is to be particular To develop a robust box that can withstand high loads. Another The purpose of the present invention is to develop a box that behaves stable in the upright position, regardless of the durability of the glued Parts.

Last but not least, the purpose of the present invention is to provide a box with simple structure to develop through Cutting and folding a sheet of semi-rigid material can be easily made.

This and other purposes, which are described in more detail below are achieved with a stackable box made from a sheet of paper semi-rigid material, consisting of transverse and longitudinal walls, as well as additional flaps these walls are made by cutting and folding the edges of a sheet of paper semi-rigid material, characterized in that these additional flaps with first Sections are equipped, which are firmly connected to the said transverse walls and are foldable on the inside of the longitudinal walls and in that said first sections each have an extension end piece that is inserted into the slots on Bottom of said box can be inserted, with this end piece under the said bottom and can be folded parallel to it.

The said box expediently has the upper edges of the aforementioned stages on a counter profile. The first mentioned develop in height Cuts up to an upper profile that coincides with that of the named longitudinal walls, which essentially doubles the contact surface compared to the normal case for boxes on top of each other.

Further properties and advantages are illustrated by the description of a in the preferred embodiment of the invention clarifies that shown by way of example and not by way of limitation in the accompanying drawings Figure 1 shows an angular section of a profiled sheet; from what a box according to the invention is made by simply folding; - Fig. Fig. 2 shows the perspective of the box profile according to the invention in full erect position; - Fig. 3 shows a phase of folding, from which the profiled Sheet of Fig. 1, the erected box of Fig. 2 is made; - Fig. 4 shows a perspective from below of an angular section of the box from Fig. 2, in an upright position; - Fig. 5 shows schematically the superimposition with mutual engagement of two boxes according to the present invention.

With reference to the above figures, the box is made according to of the present invention marked with (1). This consists of an on and known floor (2), made of longitudinal walls (3), transverse walls (4) and additional flaps on walls (3) and (4), which are described below. Both the walls (3) and (4), as well as the additional flaps, as shown in Figure 1, generated from a single profiled sheet (S) that is initially flat and E.g. made of Xarton.

Originally, the additional flaps according to the invention consist of the first Sections (6) and second sections (7), both firmly attached to the transverse walls (4) are connected. The first sections (6) start from the ends of the transverse walls (4) and are folded perpendicular to the same and on the inside of the long walls (3) lined up. The first sections (6) have end pieces (6a) that are in an upright position Position to extend the bottom of the same first sections.

As can be seen from Figures 1 and 5, the end pieces (6a) inserted into the slots (8) on the bottom (2) of the box (1) and finally parallel folded to the bottom under the box. This position is also supported by a The glued joint is stabilized and the end pieces (6a) are inserted into the slots (8) is made easier by a beveled profile of the same end pieces.

The second sections (7), on the other hand, develop from the predominant ones Flanks of the transverse walls (4) opposite those bound to the floor (2). The second sections (7) consist of a strip, the ends of which have an edge (9), which rests against the first sections (6), but does not touch them. In the upright position, the second sections (7) with respect to the transverse walls folded; the edges (9) finally are folded around the second sections (7).

Originally, the first sections (6) in more erect Position the same height of the adjacent areas of the longitudinal walls (3), and form together with these essentially coincident profiles.

Originally, the end pieces (6a) of the first sections (6) and the edges (9) of the second sections (7) have essentially the same external dimensions so that the edges (9) exactly into the cavities (10) on the longitudinal walls (3) can be inserted thanks to the presence of the end pieces (6a), as shown in Figures 1 and 3 can be seen.

The second sections (7) are in an upright position on the first sections (6), creating upper step edges for the box (1).

Finally, figures 1, 2 and 5 show the tabs (11) the second sections (7), which in the upright position on the seats (12) of the Engage the transverse walls (4) in the border area with the floor (2).

The tabs (11) protrude as end stops above the box (1).

The assembly of the box according to the invention and the application the same are based on the above description and in particular the figures 3 and 5 apparent.

Initially, the first sections (6) are related to the transverse walls (4) folded and finally the latter are folded with respect to the bottom (2), so that the end pieces (6a) be inserted into the slots (8) can.

The end pieces (6a) are now folded and attached to the underside of the floor (2) attached (Figure 4).

The longitudinal walls (3) are now folded upwards until they are with the first sections (6) are in contact.

Now the second sections (7) with respect to the transverse walls (4) folded and the flaps (9) protruding from the flanks of the box (1), are folded down so that they rest in the cavities (10) of the longitudinal walls (3) on the first sections (6).

By folding the second sections (7), the tabs (11) are highlighted, which continue the transverse walls (4).

The box erected and glued in this way can be used on similar boxes be stacked (Figure 5). This thanks to the feet consisting of the end pieces (6a) on the upper edges of the longitudinal walls, on the side of the second section (7) close-fitting, with a partial intervention on lying.

In addition, the tabs (11) are in the corresponding seats (12) introduced.

The support carried out in this way is absolutely reliable because the feet consist from the end pieces (6a), not only on the longitudinal walls (3), but also on the first sections (6), rest at the height of the edges. This prop proves therefore prove to be even more stable than the supports consisting of the second sections (7) those with the bottoms of the daruDerlle: 3g. »rwden shafts in Standing touch.

Another advantage is that your feet come together Distance up, which is less than the maximum length of the boxes, which is the curvature of the boxes significantly reduced All flanks of the boxes according to the Invention are essentially smooth, which allows for smooth transport of the boxes is guaranteed on one level if they are close to one another.

In addition to the mentioned features of expediency and stability further favorable properties: the boxes according to the invention are light to assemble, shapely and especially very stable in the upright position.

Indeed, the engagement of the end pieces (6a) results in the slots (8) and the subsequent folding of the end pieces provide a substantially stable condition of engagement even if there is no adhesive between the end pieces (6a) and the base (2) of the boxes. The absence of lateral protrusions at; any encumbrances that could contribute to the tabs (9) loosen and the transverse walls (4) tip over, are switched off.

The invention thus achieves its intended purpose.

All individual parts are technically equivalent elements replaceable. Practically all materials come Shapes and dimensions, depending on the area of application in question.

Claims (6)

PATENT CLAIMS 1) Stackable box made from a sheet of paper made of semi-rigid material, consisting of transverse walls, longitudinal walls and additional flaps on said walls, all by cutting and folding the edges of a Sheet can be made of semi-rigid material, characterized in that said auxiliary flaps consist of first sections (6) that are firmly connected to the named walls are connected and to the named longitudinal walls (3) on the inside the same are foldable, each section with an extension end piece (6a) is equipped, which is inserted into the slots (8) at the bottom of said box can be, with this end piece (6a) under the said floor and parallel to this is folded. 2) box according to claim 1, characterized in that this a counter-profile on the above-mentioned, folded end pieces (6a) at the upper ends having. 3) box according to claim 1, characterized in that said first sections (6) form an upper profile in height, which is essentially with that of the longitudinal walls (3). 4) box according to claim 1, wherein said additional flaps have second sections (7) which are fixed to the said transverse walls (4) on the Flanks of the same are connected, said second sections (7) being foldable are and on the upper profile of said first sections (6) in in erect Resting position, characterized in that the second sections (7) edges (9) which can be folded parallel to said first sections (6). 5) box according to claim 1 or 4, characterized in that said end pieces (6a) from a corresponding cavity (10) of said Longitudinal walls (3) are obtained and that said edges (9) are essentially matched to the size of said cavities (10) are and in can be introduced into them in an upright position. 6) Stackable box made from a sheet of semi-rigid material, according to the above claims and the accompanying description and illustration for the purposes described.