WO2016131523A1

WO2016131523A1 - Plastic crate, in particular bottle crate

Info

Publication number: WO2016131523A1
Application number: PCT/EP2016/000153
Authority: WO
Inventors: Michael Rinderle
Original assignee: Schoeller Allibert Gmbh
Priority date: 2015-02-18
Filing date: 2016-01-29
Publication date: 2016-08-25
Also published as: DE102015102307A1

Abstract

The invention relates to a plastic crate, in particular a bottle crate (2), in which concave profiles (14) extending inwards are provided in the side wall (4, 6) of the crate, said profiles being designed to engage with a base rib (24) inserted therein, in order to transfer the load in a stack of crates placed one on top of the other.

Description

Box made of plastic, in particular bottle crate

The invention relates to a box, in particular bottle crate, according to the preamble of claim 1.

In particular, the invention relates to bottle crates for holding beverage bottles, which are usually formed from a bottom and four circumferential, often closed-walled walls. These crates are stackable for transport on the truck and for storage in reservoirs, so that in particular under vol lem weight of the bottles set the entire load must be removed down over the box sidewalls.

Today's crates are largely characterized by a smooth-walled design, so that externally set ribs can be substantially avoided. For this purpose, however, separate measures are also required in order to provide a particularly sufficient stability of such a box, since, for reasons of cost savings, the material is reduced consumption of plastic and thus the box side walls and the bottom forms a thin-walled overall.

In general, column-like hollow profiles are used in such crates for the purpose of stiffening, projecting from the box inner wall to the inside and are designed as hollow profiles. This inwardly projecting hollow sections, which generally have a substantially triangular cross-section, partly serve to limit the Flaschenaufnahmeabtei le for receiving the bottles in the box.

For the purpose of shaping these hollow profiles elongated form of swords are used within a mold for the injection molding of plastics, which dip from below into the mold and thereby form the inner hollow section of the hollow profile columns. After injection molding of the plastic box, the form swords must be pulled down so that the box produced can be removed from the injection mold. Forcibly, this leads to the fact that these columnar and inwardly in the box interior projecting Hul lprofi le are open at the bottom, just to allow, as stated above, the removal of the form of swords down.

Since for the purpose of stacking below the box bottom stacking ribs or bottom ribs are provided, which are set from the outer surface of the box to the inside and project downwards, these bottom ribs must be performed in the range of säu lenartigen hollow surface around these cavities. As a result, however, this has the consequence that this hollow profi le can not be used for load transfer, because in the area of these hollow sections below the bottom rib because of the deduction of the form of swords at this position can not be present. However, this leads to an overall unfavorable load transfer of these crates in the stack, which can cause problems in order to bring about the stability for the load transfer.

Moreover, using these form of swords and double-walled corner areas, so that overall these boxes in the region of the hollow sections and the corner areas are so to speak double-walled, which in turn is disadvantageous for the space utilization for adjusting the crates, but in particular also leads to a higher cost of materials. The marginal areas in the bottom of this formed with hollow sections boxes, which form the contact surfaces to the underlying box, are usually not shown as a surface but by ribs. 2016/000153

For bottle crates without spars, the vertical longitudinal walls are set inwards around the edge width and the stability is increased by means of vertical webs. In these boxes, the support edges are made smooth, but then the stability is ultimately dependent on the edge width.

The object of the invention is to provide crates that allow a simple and robust construction a vortei-like load transfer in consequence of optimized power flow when stacking such boxes. Furthermore, the production of these boxes should be simple and the material consumption as low as possible.

This object is achieved by the features contained in the characterizing part of claim 1, wherein expedient developments are characterized by the features contained in the dependent claims.

According to the invention, the side walls are provided with vertical profiles to increase stability, which are preferably either in the form of indentations or indentations of the walls inwardly, which makes it possible to produce the boxes without form swords, rather, the indentations leading inwards resp Winformings are formed from the outside by means of tool jaws set from the side and, in turn, very easily removed from the mold. Alternatively, for example, the vertical profiles may be provided in the form of inwardly directed web-like Gebi conditions, in particular single-walled webs.

These indentations or webs are inwardly in the box inside as pro le before and preferably extend from the box bottom up to just below the edge of the box, and in particular only so far that in the stacking position, the downwardly projecting bottom rib of the upper box on the upper end, In particular, on the upper front side of the not fully raised to the upper edge vertical profile can stand up, so that in this area, which is formed in the prior art by columnar hollow profiles, now a perfect load transfer via the Einbuchtprofi le or web profiles is possible. This is advantageous overall for load transfer, with sufficient stability of the box being ensured by these vertical profiles, in particular in the manner of recessed profiles, that is to say inward-bent profiles, or by such web-like structures. This also has the consequence that the box sidewalls can preferably be designed as a single-walled unit, which is important for the material consumption and, in particular, dere in the corner area ensures an advantageous utilization of the box in the sense of increased absorption capacity.

Advantageously, the recessed profiles are V-shaped or U-shaped or quasi-triangular in section, i. Outwardly, the cross-sectional profiles are open and closed only towards the inside. Here, the V-tip or the U-web of the profile is directed into the box interior.

Furthermore, the side walls are at least in part, but preferably in total, which is advantageous for the space utilization for receiving the bottles, with vertically extending, outward bulges ausgebi end, which extend from the bottom to the upper edge of the box and this with their inner surfaces can also limit Flaschenaufnahmeabteile for receiving the bottles. In addition, these curvatures also form advantageous designs for the outer surface of the side wall.

Conveniently, adjacent bulges between each jewei ls limit a Einbuchtprofi l, so that a smooth transition between curvature and indentation is guaranteed, which may also be useful for design reasons.

For the purpose of optimized load transfer, the upper end or end faces of the vertical Profi le extend substantially horizontally.

Conveniently, the recessed profiles open into a projecting into the box interior web, which in turn can be conveniently connected to a corresponding compartment wall, which in turn is for stability reasons of advantage. The same is also advantageous for the bar profi l.

It is also advantageous that the box corners are each formed by a curvature extending from the box bottom to the upper edge of the box, which are expediently contoured in accordance with the curvature within the side wall. As a result, the edge of the box, which is expediently designed as a single wall, is also optimally utilized for receiving bottles. For the purpose of stiffening, it may be expedient to provide an outwardly projecting bead in the corner region of the box at the curvature. Since the columnar hollow profiles can be omitted due to the recessed profiles, the bottom wall may be formed in this area closed-walled, which in turn is advantageous for stability reasons and for the purpose of load transfer.

In an alternative embodiment, it is advantageous to conceive the vertical profile as web-like and inwardly projecting into the box interior structures. Appropriately, this web-like structure is formed single-walled in the form of an inwardly projecting rib. This also makes it possible to accomplish a simple shaping of the box with this profile.

To increase the stability, it may be appropriate to len this web profile in particular on both sides at different Stel about its height to the inner surface of the box side wall, which can be done for example via web-like lateral ribs connecting the web with the inner surface of the box sidewall.

In a particular way, it is expedient, and due to the designs described above, also advantageous to produce the side walls including the bulges and the inwardly projecting profiles of foamed plastic by injection molding, it is then appropriate to make the floor of foamed plastic accordingly.

The manufacture ment of the indentation profiles is relatively simple and does not require elongated form of sword, which must be inserted into the mold and withdrawn again, rather, the formation of the recessed profiles can be done by laterally set tool jaws.

Hereinafter, embodiments of the invention will be described with reference to the drawings. In it show in a purely schematic representation

1 is a perspective view of an inventively designed bottle crate 2,

2 shows a sectional view of a part in Fig. L illustrated bottle crate along the line 2-2.

3 shows a partial section through the wall region of two superimposed boxes, wherein the lower box with 2a and the upper box is designated 2b. 4 is a plan view of this sectional view in Figure 3 in a purely schematic representation and as a schematic section approximately at the level of the immersion of the upper box in the lower box, for the presen- tation of the upper box, only the bottom rib is shown symbolically.

A schematic sectional view through superimposed boxes, with only the box side wall area of both boxes is shown.

6 is a perspective view of a part of two stacked bottle boxes seen from the inside.

6 shows a perspective view corresponding to FIG. 6 of two boxes arranged one above the other, seen from the inside, in a second embodiment as well

8 shows a diagram of a sectional view, again only of the side walls of two superimposed boxes according to the embodiment according to FIG.

Fig. L shows an example of a perspective view of a bottle crate according to the invention. By way of example, the features that are completely independent of each other are independent of the other features stated in connection with these embodiments, which are described only for simplifying the description together with the embodiments. The box has a base 3 and four peripherally arranged Side walls, of which in Fig. L due to the perspective view of the narrow side wall 4 and the longitudinal side wall 6 can be seen. In the illustrated embodiment, the side walls 4 and 6 are preferably formed closed-walled from the bottom to the top edge 8, with the exception of conventional handle openings. As shown in FIG. 1 shows, the upper end edge of the bottle crate is particularly at the same level, that is formed at the same height to the bottom 3. If necessary, in the closed-walled side walls, as shown in FIG. 1, suitable handle openings 10 of the usual type may be formed or conventional so-called display openings may be provided, which allow a view of the adjusted bottles.

As clearly apparent from Fig. L but also Fig.2 shows, the side walls 4, 6 spaced vertical profiles, which are generally designated 12 and preferably protrude into the box interior. In the illustrated embodiment, the longitudinal side wall 4, two such profiles, which are formed in the box shown in Figs. 1 to 6 by indentations or bead-like formations inwardly into the interior of the box, ie the len with Einbuchtprofi 14 are designated. In the narrow side wall 6, two of these recessed profiles 14 are also provided in dargestel Lten embodiment. It is understood that the number of recessed profiles 14 provided in each side wall can be selected and taken as required, depending on the length of the box side wall and / or bottle diameter. The number is therefore not limited, it can be provided on the pages 2, 4, 6 and 8 Profi le and / or 3, 5, 7 profiles and more.

2, expediently have a substantially V-shaped or U-shaped cross-sectional profile or delimit a triangular or quadrangular cross-section which is open on one side, but are designed to be open overall towards the outside of the box, which constitutes an expedient feature in the context of the invention These vertical profi le 12 ultimately have a similar function as the well-known in the art columnar hollow profiles projecting from the box side walls inwardly. As can be seen from Fig.2, the vertical profi l 12 or recess profile 14 at the inner end in a rib-like web 1 6 open, which projects into the box interior. This bridge is convenient, al lerdings not mandatory. As Figure 2 shows, the vertical profi are le 12 connected to the inner framework and thus to the compartment walls 1 8 of the box conveniently connected or aligned.

Furthermore, each side wall of the box 2 may have outwardly directed bulges 20, which expediently extend continuously from the bottom upper edge to the upper edge 8. As can be seen in particular from Figure 2 for the longitudinal side wall shown there, the vertical profiles 12 are preferably disposed between the bulges 20 or limit adjacent bulges 20 between the Einbuchtprofi le 14. These bulges 20 are conveniently located in the corner regions of the box. 2 , as is apparent from Fig.2. FIG. 2 further shows that the box side walls, including the bulges and the vertical profiles 12, are preferably single-walled, also in the corner wall area, which, on the one hand, makes optimum use of the capacity of the box for accommodating the bottles and, on the other hand, reduces the plastic material for injection molding Has the result.

In the corner can projecting beads 22 are formed outwardly in the corner, which ebenfal ls as the bulges 20 expediently extend from the bottom 3 up to the box edge 8 throughout. Only where there are handle openings 10 are the vaults 20, but also possibly interrupted the bight profiles. This is quite clear from the narrow side wall 6 in the illustration of Fig. L, since the handle opening 10, which is located near the upper edge of the box 8, the local central curvature 20 breaks through.

From Fig. L also shows a bottom rib 24 which is offset in particular relative to the outer bottom edge and / or the outer surface of the side wall inwardly and serves for load transfer but also as a stacking rib in the stacking of such boxes one above the other.

As can be seen from FIGS. 2 and 3, the bottom rib 24 protrudes downward in particular from the bottom 3 and is preferably offset inwards relative to the outer peripheral edge 26 of the bottom 3, wherein the bottom rib can also serve as a stacking rib.

The bottom rib 24 is also shown in Figure 2, although with a solid line, which serves only to illustrate the operation between the notch and bottom rib, which will be explained later. 2, the bottom rib 24 would have to be represented by dashed lines, since this is located below the bottom 3 shown in FIG. 2 from above and in particular extends downwards from the bottom, as FIG. 3 shows. The bottom rib 24 is expediently circumferentially trained in the illustrated embodiment, but can also be tei lumfänglich and provided in sections over the circumference of the box, however, is always formed in the context of the invention, where the vertical profiles 12 are located. This is useful for the later described load transfer in the stack.

As best seen in Fig. L shows the vertical profiles 12 and 14 Einbuchtprofile extend from the bottom to or near the upper edge of the box 8, but expediently ends there with its inner portion with a distance from the upper edge of the box, which expediently the height of downwardly projecting bottom rib 24 corresponds. This is best seen in Figure 3, in which the box side wall 4 of the bottom bottle box 2a in the left area reflects the curvature 20 of the side wall ends in the upper box edge 8, however, the right inner portion or section is set back down, the the bight profile 14 represents. Obviously ends the upper end face 28 of the Einbuchtprofi ls 1 4 in the inner region or portion of the box at a distance below the upper edge 8 of the box 2a, which corresponds to the depth of immersion of the bottom rib 24 and thus the height of the bottom rib, with the result that in stack arrangement the boxes the bottom rib 24 of the upper box respectively on the vertical profile 12, and preferably its upper end face 28 rests in the inner region or portion of the box. 4, the bottom rib 24 of the upper box 2b crosses the two V-legs 14a and 14b of the recessed profile 14 which are expediently set lower in accordance with FIG. 3, so that the upper edge of the box has an advantageous position at these two positions Load transfer to the bottom or load bearing ensured by the respective lower box, which was not possible in the hitherto usual boxes with inwardly projecting columnar hollow sections, since the bottom ribs either had to be interrupted at this position or had to be guided inwards, thus not on the Hollow profile columns can remove the load.

Also, it can be seen from FIG. 2 that the bottom rib 24 is aligned with the recess profiles 14 in stacking position and crosses them and also rests there in the stacking position, in particular in areas 14a, 14b and 28 set lower relative to the upper edge of the box.

3, the bottom 3 extends to the outer bottom edge 26, which is preferably flush with the outermost bulge region of the bulges 20, as shown in Fig. L and Figure 3 shows. Thus, the protruding bottom region is expediently designed to be continuous or closed-walled up to the bottom edge and thus also lies above this protruding bottom edge of the upper box on the lower box or its upper edge 8.

As clearly shown in FIGS. 2 and 4, the two legs 14a and 14b of the recessed profile 14 are expediently arched and transition into the region 20, which may be planar and / or provided with a curvature 20. Furthermore, the bulges 20 with the indentation profiles inwardly delimit bottle receiving parts, which is advantageous for good positioning of the adjusted bottles. This over the box sidewall projecting edge region is illustrated in Figure 3 with 30.

Since the upper end side of the recessed profile is offset in particular in the inner region relative to the upper edge 8 down, as can be seen quite clearly from the sectional view of Figure 5, a step is formed on the inner surface of the side wall, which emerges from Figure 6 and inwardly standing upper end face 28 of the recessed profile 14 bounded from above. Behind this step or above the front side 28, the box side wall is preferably in the upper area up to the upper box edge 8 passed through pulled, so that there, as shown in FIG. 1, a kind of bridging web 32 between each 2 vaults 20 results.

The shape of the recessed profiles can be easily by lateral Werkzeugbzw. Form baking done from the side, so that the use of swords, as is required in the case of the inwardly directed columnar hollow profiles according to the prior art, can be omitted, with the result that advantageously the recessed profiles or the space between the adjacent vaults may be formed closed-walled with the recess profile on the bottom side.

Due to the bridge-like webs 32 and the upper edge of the box 8 may be formed circumferentially at the same level, on which then the protruding bottom edge 30 of the upper box is seated in the stacking position.

In the embodiment of Figures 7 and 8 is different from the previous embodiment, the vertical profile 1 2 as in the box interior protruding rib-like single-walled web 36 ausgebi endured instead of an inwardly drawn indentation 14 whose upper end face 38 in turn by the dimension below the upper Rands 8 ends, which corresponds to the height of the protruding bottom rib. Otherwise, this vertical profile, which is designed as a rib-like web 36, extends from the bottom 3 upwards to the end face 38 offset downwards relative to the top edge 8.

To stabilize it may be appropriate to the vertical web 36, which is directed into the box interior, at different Stel sources with the box side wall or the inner surface to bind. 7 shows spaced-apart ribs 40 which may be provided on both sides of the web and connect the web to the inner surface of the corresponding box side wall. In the illustrated embodiment, these ribs may be designed substantially triangular. The two uppermost ribs 40 form with the upper end 38 of the web a flat support surface for the load transfer with respect to the stacked up box.

All features disclosed above, even if they are expressly indicated and indicated in connection with other features are claimed in the context of the invention per se as appropriate and advantageous embodiment and thus as essential to the invention, so that even a single picking out this feature is claimed, even if this in the description of the invention in a proper constructive and / or functional relationship with other features disclosed and explained.

Claims

claims

1 . Box made of plastic, in particular bottle crate (2) with a box bottom (3) and four around current, preferably up to handle openings (10) closed side walls (4, 6), ie with their upper end edges (8) limit the box height and with at least a, preferably at least over a partial circumference of the box, preferably fully extending bottom rib (24), which is preferably set in relation to the side wall inwardly and projecting from the box bottom (3) downwards,

characterized in that

the side walls (4, 6) with vertical Profi len (12) in the form of indentations (14) are provided, which are open to the outside, or in the form of webs (36) that the vertical profi le (1 2) in protrude the box interior and extend from the box bottom (3) up so far to the upper box edge (8) that the inwardly projecting upper end face (28, 38) of the profiles (1 2) at a distance from the upper edge of the box (8) is, which corresponds to the height of the floor (3) downwardly abkragen- the bottom rib (24), so in the stacking position with an overhead box (2b) in the lower box (2a) dipping bottom rib (24) load-bearing on the end faces (28, 38) of the Profi le (12) of the lower box (2a) is seated.

2. Box according to claim 1,

characterized in that

the recessed profiles (14) V-shaped or U-shaped in section, wherein the V or U-tip is directed into the box interior.

3. box according to claim 1 or 2,

characterized in that

the side walls (4, 6) are formed with vertically extending cambers (20) which extend from the bottom (3) to the upper box (8), are arched outwardly and preferably bound with their inner surfaces jewei ls bottle receiving compartments of the box.

4. box according to claim 3,

characterized in that adjacent vaults (20) between them each define a bay profile (14).

5. Box according to one of the preceding claims,

characterized in that

the upper end face (28, 38) of the profile (12) extends horizontally to form a load receiving surface.

6. Box according to one of the preceding claims,

characterized in that

the recessed profile (14) inside opens into a in the box interior projecting web (16) to which preferably each a compartment wall (1 8) of the framework of the box is connected.

7. Box according to one of the preceding claims,

characterized in that

The box corners are each gebil by a from the box bottom (3) vertically to the upper box edge (8) extending buckle (20), wherein at the box corner, the curvature expediently with an outwardly projecting, vertically extending bead (22) is ausgebi Ldet extending from the box bottom (3) to the upper box edge (8).

8. Box according to one of the preceding claims,

characterized in that

the vertical profiles (12) are aligned with the compartment walls (1 8) of the box (2) and in the case of the recessed profiles (14) with their side cheeks (14a, 14b), which are preferably curved, with the adjacent vertical box curvature (20) Limit bottle receiving compartments of the box.

9. Box according to one of the preceding claims,

characterized in that

the floor area is closed under the vertical profiles (12).

10. Box according to claim 9,

characterized in that

the floor (3) is formed outwardly in the form of a cantilevered and circumferential web-like bottom edge (30), which extends to the outermost surface of the arch (20). extends or protrudes, so preferably each is flush and the inwardly projecting indentation profiles (14) bridged bottom walled.

1 1. Box according to one of the preceding claims,

characterized in that

the vertical profile (12) is preferably of single-walled design as an inwardly projecting rib-like web (36), and in that the web (36) is preferably connected to the side wall via horizontal web-like ribs (38) arranged one above the other at a distance from one another.

1 2. Box according to claim 1 1,

characterized in that

the upper end face (38) of the web (36) with the web-like ribs (40) arranged laterally on top thereof forms a level footprint for the load transfer.

1 3. Box according to one of the preceding claims,

characterized in that

the side walls (4, 6) including the bulges (20) and the profiles (12) are single-walled.

14. Box according to one of the preceding claims,

characterized in that

at least the side walls (4, 6) including the bulges (20) and profiles (12) made of foamed plastic, in particular by injection molding, are made, preferably the whole box.

1 5. Box according to one of the preceding claims,

characterized in that

the recessed profiles (14) are formed by laterally set tool jaws.