EP1772389B1 - Large load carrier - Google Patents

Abstract

Crosswise and lengthwise side walls (3,4) rise from a rectangular palette-like floor part. Frames are disposed one above the other and mounted at contact points (7) to either the lengthwise or the crosswise side walls. The frames act as carriers for inserts that carry goods to be transported. The sidewalls can be folded on top of one another towards the inside of the container (1). The detachable frames are mounted in the contact points formed by bores (12) in the sidewalls so they can pivot. Strips screwed onto the crosswise side walls can be pulled off after container has been emptied.

Description

The invention relates to a large load carrier with a rectangular, pallet-like bottom part and from this rising longitudinal and transverse side walls, wherein either the longitudinal or transverse side walls in the area against the other side walls attachment points for a plurality of superposed frame as a support for the products to be transported Have inserts (layers).

To date, large steel load carriers have been used, which are either welded completely or in which four corner profiles and three cross sections are screwed onto a base frame. Movable frame on which workpiece holders (layers) are attached, for example, be pushed through a hole in the corner profile on the transverse side wall and then secured by a screw or a plug-in fixing. On the frame gas pressure springs are used laterally to hold the bracket in the folded up position. The workpieces stored on the individual layers are processed by the uppermost layer, for example in automobile production. This is then folded up together with the frame, so that the underlying layer is accessible.

Disadvantage of this steel bulk carrier is that they always have the same external volume during the return transport and storage.

The invention is therefore the object of a large load carrier in such a way that after removal of the delivered workpieces this large container can be folded to save storage space but also return transport costs.

The invention solves this problem according to the characterizing part of patent claim 1, characterized in that the side walls are aufeinanderklappbar to the inside and the frame are releasably mounted in the attachment points.

The advantages that result from this are clear in the following example.

For example, two large-capacity containers according to the invention are delivered, in each of which three layers with frame and workpiece carriers are present.

Each container, however, has attachment points for six frames.

After emptying the two large-capacity containers, the frames with the workpiece carriers are removed from one of the large-capacity containers and inserted into the other large containers so that they now have such frames at all attachment points, while the first large-size carrier is completely empty. This can then be folded in a conventional manner in which, for example, first the longitudinal side walls are folded together and then the two transverse side walls.

In such folding large load carriers bores are integrated in a fixed spacing pattern, for example, in the transverse side walls, wherein the bores receive the axes of rotation of the frame and the container-side attachment of the gas springs.

Since the hinges for the longitudinal and transverse side walls are located in the foldable large load carriers in the upper edge region, there is no room for such holes, as well as in the lower container area, ie in the hinge area.

Should therefore be required in these areas attachment points for the above-mentioned frame, the claim 4 proposes that through the holes in the transverse side walls on the inside of the transverse side walls vertically arranged, the entire height of the transverse side walls engaging strips for the attachment points of the frame fastened are. However, depending on the design, the attachment points can also be provided in the longitudinal side walls.

To return to the above example: When such a container is to be folded after emptying, the strips attached to the transverse side walls are removed and placed flat in the bottom of the container. Thereafter, the container can be folded.

As stated, the frames are pivotably mounted in the attachment points and are held in their pivoted position by means of gas pressure springs.

As already mentioned, such attachment points can be provided by the transverse side wall bores themselves.

The attachment points may-as the claim 5 executes vertically superimposed holes in the strips, wherein the pivot points of the frame may be formed by tabs, as proposed in claim 6.

According to claim 7 is alternatively proposed that in the holes in the strips bolts are fastened, which form the pivot axes of the respective frame.

For this purpose, the stop point-side longitudinal strut of the frame is extended beyond the transverse struts. Since the frame is formed of square profiles, a part is cut out of the edge region of the frame extension, so that a receiving opening for the bolt is formed and thereby ensuring that the frame does not slip out of this receiving opening undesirably when pivoting.

According to claim 8 it is provided that in each case a sleeve (or the said in claim 7 bolt) can be inserted into the strip bores and this sleeve or this pin is arranged together with a ball on a flat bar, which in a complementary recess on the back the bar fits, with the ball head laterally protruding past the bar.

This ball head serves as a container-side attachment of the gas spring.

Claim 9 provides that the strips are screwed onto the transverse side walls and through some of the existing in the transverse side walls holes.

Alternatively, claim 10 proposes that the strips can be plugged onto the heads of screws inserted into the bores of the transverse side walls, similar to that usual in picture frame suspensions.

For this purpose, elongated holes are provided according to claim 11 in the strips, in each case a plug-in element is provided in the upper region, which is attachable to the screw head mounted in the transverse side wall.

With this latter solution, it is even easier to remove the strips after emptying a container and lay flat on the bottom of the container before it is folded.

Claim 12 suggests that the frame-facing side of the bar are provided from the front obliquely rearwardly extending slots for receiving the frame pivot axes.

In this way it is possible to simply insert the frames with the workpiece holders in the container.

In this alternative, gas springs are not necessarily required because after working off a workpiece holder this can be pulled out of the container together with the frame.

So that the frames keep their parallel distance from each other, it is provided according to claim 13 that are arranged on the frame at right angles to the plane defined by the frame plane arranged spacers.

These are arranged in the front free frame area, such that the lower frame with its spacers forms the support for the frame arranged above.

Alternatively, it is provided according to claim 14, that on the longitudinal side wall, which is remote from the attachment points, strips are arranged on which at defined intervals off and retractable pads for the free front part of the frame are provided.

In the folded state, they thus serve as a spacer. After pivoting the frame these pads are folded up to the bar.

According to claim 15, it is provided that the pads are held in the folded state by means of magnets.

Finally, it is provided according to claim 16, that on the longitudinal side wall, which is remote from the attachment points, an angle is arranged for the uppermost frame, which rests in the container-facing leg rests on the front frame part.

Thus, it is ensured that, when the distance elements disclosed in claim 13 are provided, all positions are secured against vertical movement by this angle.

According to claim 17, it is provided that this angle is attached to an outwardly foldable part of the longitudinal side wall.

These hinged parts serve to make the contents of the container more accessible. Such outward Foldable areas can be present both in the longitudinal side walls and in the transverse side walls.

As soon as such a part is folded down, to which the above-mentioned angle is fastened, the uppermost frame is automatically unlocked. It can now either be taken out of the container for one alternative or be swung upwards after being processed.

Existing large load carriers can be retrofitted in a simple way with the strips and angles.

The invention is illustrated below with reference to drawings and explained in more detail.

Fig. 1

einen klappbaren Großladungsträger

Fig. 2

Großladungsträger nach Figur 1 mit weggelassener Längs- und Querseitenwand

Fig. 3a und b

Leistenelemente

Fig. 4

Detail A aus Figur 3

Fig. 5a

im Ausschnitt ein Leistenelement mit Teil eines Rahmens

Fig. 5b

Alternative Rahmenausgestaltung

Fig. 6a

Alternative Befestigungsart der Leisten aus Figur 3

Fig. 6b

Perspektivische Darstellung einer derartigen Befestigungsart

Fig. 7a und b

Leisten mit Auflagerelementen in ausgeklapptem und eingeklapptem Zustand

Fig. 8

vordere Längsseitenwand eines Großladungsträgers mit Haltewinkel für den obersten Rahmen

Fig. 9

Großladungsträger als Stand der Technik.

Show it:

Fig. 1

a folding large load carrier

Fig. 2

Large load carrier after FIG. 1 with omitted longitudinal and transverse side wall

Fig. 3a and b

bar items

Fig. 4

Detail A off FIG. 3

Fig. 5a

in the neckline a strip element with part of a frame

Fig. 5b

Alternative frame design

Fig. 6a

Alternative method of attachment of the strips FIG. 3

Fig. 6b

Perspective representation of such a type of fastening

Fig. 7a and b

Bars with support elements in unfolded and folded state

Fig. 8

Front longitudinal side wall of a large load carrier with bracket for the top frame

Fig. 9

Large load carrier as state of the art.

In the FIG. 9 a large load carrier is shown and generally designated by the reference numeral 1. It consists of a pallet-shaped bottom part 2, from which two transverse side walls 3 and two longitudinal side walls 4 rise. The bottom part 2 is in this case a base frame, are screwed or welded to the four corner sections 5 and three cross sections 6.

In the rear region of the container attachment points 7 are provided in the transverse side walls 3, in which four frames 8 are pivotally mounted in the present case. The attachment points 7 are in this case in the transverse side walls 3 existing holes and are secured by a screw or a pluggable fixing. To the frame 8 gas springs 9 are arranged so that they hold the frame in the folded state up.

The frames 8 each carry a workpiece holder (layer) (10).

The workpiece holders are processed in the production from top to bottom. Each processed layer is then flipped up to make it accessible to the underlying layer.

If the container is completely emptied, it is transported back, whereby the outer volume is unchangeable.

In the FIG. 1 is the basic concept of a large load carrier according to the invention shown. In this large load carrier sections 11 are folded outwards in the longitudinal and transverse side walls in order to optimize the accessibility of the container.

Both the transverse side walls 3 and the longitudinal side walls 4 are mutually foldable and each other when the container 1 is completely emptied. Like from the FIG. 1 As can be seen, holes 12 are integrated in a certain pattern in the corner regions of the side walls 3 and 4, respectively.

A container 1 after FIG. 1 is also in the FIG. 2 shown, in each case a longitudinal and a transverse side wall has been omitted for clarity. In the transverse side walls 3 in the area against the longitudinal side wall 4, the entire height of the container wall engaging strips 13 are attached, the attachment points 7 have, where as shown in the lower region of the container 1 are each a frame 8 by means of tabs 14 is pivotally mounted.

Continue from this FIG. 2 that in the front free area 15 of the frame 8 vertically upstanding spacers 16 are arranged. The respective lower frame 8 thus supports the frame located above.

The strips 13 are fastened in the present example by means of three screws 17 in the holes of the transverse side wall 3. The design of the strips 13 is clear from the FIGS. 3a and 3b out. The FIG. 3a shows the ledge from its side into the container while FIG. 3b represents the back of the bar.

Attached to the strips 13 are at certain intervals elements, as shown in detail A in FIG. 4 are shown. These elements 17 consist of a web 18, on one side of a sleeve or a pin 19 is arranged and on the opposite side a ball screw 20. The web 18 fits in a corresponding recess in the back of the bar 13 in the manner in that the ball head 20 points laterally past the strip 13 and is arranged somewhat lower than the pin 19.

The ball head 20 serves as a container-side attachment point for in FIG. 9 illustrated gas spring 9.

The pin 19 and the sleeve 19 serve as attachment points for the pivotable attachment of the frame eighth

This in Fig. 4 shown component is a standard part that can be used independently of the container series. Only the strips 13 must be adjusted accordingly.

Either - as shown above - the tab 14 of the frame is fastened here with a screw.

In the FIG. 5a However, an alternative is shown, in which the pin 19 protrudes beyond the front of the bar 13 and serves as a shaft for the frame 8. The frame 8 is designed so that the rear part 21 of the frame projects laterally and has an opening 22 into which the pin 19 can be accommodated.

A disadvantage of this embodiment, however, is that when the frame is pivoted upwards, the pin can escape from the opening 22.

To avoid this, is in FIG. 5b presented another solution. Here, the opening 22 is introduced into the edge region of the protruding part of the frame part 21. If, in this case, the frame is pivoted upwards, the bolt still bears against a stop. Slipping out is thus excluded.

As shown above, the strips 13 can be screwed onto the inside of the lateral transverse wall, as shown in FIG FIG. 2 is shown.

An alternative embodiment is in the Figures 6a and 6b shown.

Like the lower figure in FIG. 6a shows, a screw 24 is screwed into the transverse side wall 3, the head serves as a slip-on element for the bar 13.

For this purpose, in the bar 13 at regular intervals one above the other long slots 26 are introduced, at the upper end of a plug-in element 27 is attached. This plug element 27 cooperates with the screw head 25 during Aufsteckvorgang. The advantage of this embodiment is the fact that after emptying a large load carrier 1, the strips can be removed quickly, be placed in the bottom portion of the container and then the container can be easily folded.

As from the drawings of FIG. 6a shows, are on the inside of the container side of the bar 13 obliquely below leading rear grooves 28 incorporated, which serve as alternative receptacles for the frame 8.

With this solution method, it is possible that the frame with the layers can be easily inserted or withdrawn into the container 1, without a pivoting movement and the associated pressure gas spring is necessary.

In the FIGS. 7a and 7b a bar 29 is shown, which may be arranged individually or in pairs on the transverse or longitudinal side wall 4, which is remote from the attachment points of the frame 8. On the strips 29 support elements 30 are arranged hinged. In the Figure 7a is the element 30 folded down, and the front free end of the frame 8 can be supported on this element.

If the frame 8 is removed or pivoted away upwards, the element 30 is folded upwards against the strip and held there by means of a magnet which is inserted in the receptacle 33.

Finally, in the FIG. 8 in the FIG. 7 addressed longitudinal side wall 4 shown.

However, the additional strips 29 are not present here. Shown here is in the upper region of the longitudinal side wall 4, an angle 31 which is secured to the outwardly hinged region 11 of this longitudinal side wall. The inwardly facing leg of the angle 31 sits on the top of the uppermost frame 8. The frame is thus secured during transport. If the area 11 is folded outwards, this backup is lifted for the frame and it can be swung upwards.

There are as indicated at the bottom right in the figure all stacked frame 8 via the spacers 16 in conjunction, and are thus secured by the angle 31 during transport all frame and the layer supported thereon against vertical movement.

Claims (17)

1. Large load carrier, having a rectangular, pallet-type base part from which rise lengthwise and crosswise side walls, in which either the lengthwise or the crosswise side walls, in the area facing towards the respective other side walls, have contact points for several frames disposed one above the other as supports for inserts (layers) for the products to be transported,
   characterised in
   that the side walls (3, 4) can be folded inwards on top of one another, and the frames (8) are releasably mounted in the contact points (7).
2. Large load carrier according to claim 1,
   characterised in
   that bores (12) are provided in the side walls (3) for the contact points (7).
3. Large load carrier according to claim 2,
   characterised in
   that the frames (8) are pivotably mounted in the bores (12).
4. Large load carrier according to claim 2,
   characterised in
   that strips (13) for the contact points (7) of the frames (8) can be fastened, arranged vertically through the bores (12), on the inner side of the side walls (3) and extending the entire height of the side walls (3).
5. Large load carrier according to claim 4,
   characterised in
   that several bores (7'), arranged vertically one above the other, are provided in the strips (13), into which screws can be screwed.
6. Large load carrier according to claim 5,
   characterised in
   that tabs (14) are arranged on the sides of the frame (8) facing the side walls (3), and said tabs can be attached to the respective strip (13) by screws.
7. Large load carrier according to claim 5,
   characterised in
   that bolts (19) can be fixed into the strips in the bores (7'), said bolts forming the pivot axles of the respective frame (8).
8. Large load carrier according to claim 7,
   characterised in
   that one bolt (19) can be inserted into each of the bores (7') in the strips, the bolts being arranged, together with a ball head (20), on a flat crosspiece (18) which fits into a complementary recess on the back of the strip (13), while the ball head (20) projects past the strip (13) laterally.
9. Large load carrier according to one of claims 1 to 8,
   characterised in
   that the strips (13) can be screwed (17) onto the side walls (3).
10. Large load carrier according to one of claims 1 to 8,
    characterised in
    that the strips (13) can be set onto screws (24) inserted into the bores (12) of the side walls (3).
11. Large load carrier according to claim 10,
    characterised in
    that a plug element (27) is provided above an oblong hole on each of the strips (13), said plug element working together with the screws (24).
12. Large load carrier according to one of claims 9 to 11,
    characterised in
    that grooves (28) are provided, running from front to back at an angle in the side of the strip (13) facing towards the frame (8), to accommodate the frame pivot axles.
13. Large load carrier according to one of claims 1 to 12,
    characterised in
    that spacer elements (16) are provided on the frame (8), said spacer elements being disposed at a right angle on the plane that passes through the frame.
14. Large load carrier according to one of claims 1 to 12,
    characterised in
    that strips (29) are arranged at defined intervals on the side wall (4) which is away from the contact points (7), said strips having supports (30) which can be folded out and in for the free front part (15) of the frame (8).
15. Large load carrier according to claim 14,
    characterised in
    that the supports (30) are held in their folded-in condition by means of magnets (33).
16. Large load carrier according to one of claims 1 to 15,
    characterised in
    that a bracket (31) for the uppermost frame (8) is arranged on a side wall (4) which is away from the contact points (7), said bracket having a shank, pointing into the container, which rests on the front part of the frame (15).
17. Large load carrier according to claim 16,
    characterised in
    that the bracket (31) is attached to a part (11) of the side wall (4) which can be folded outwards.

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