EP1314649B1 - Sheet steel pallet - Google Patents

Abstract

The pallet, especially for mesh crates, is made from sheet steel. It comprises a box-shaped base (1) with retaining lips (7, 8) on its upper rims. This is strengthened by a U-shaped, corrugated cross-bar (5) whose arms (6) are attached to the inner walls of the box. A lid (11) with a rim (12) which fits into the retaining lips fits on to the base.

Description

The invention relates to a pallet made of sheet steel with the features of the preamble of claim 1.

Such a pallet is known from US-A-5 738 240. It consists of sheet steel with a substantially rectangular sub-frame, which is formed from tubes. On the subframe rests a floor pan, which rests flat on the upper pipe sections of the subframe and easily protrudes beyond these pipes to the outside. Subframe and floor pan are welded together.

From DE-U-200 20 648 a pallet-like base for transport and storage containers for liquids is known with a base frame formed from a circumferential hollow profile, which has a trough-shaped metal bottom for the positive reception of a plastic inner container. On the base frame corner and center feet are arranged on longitudinal and transverse frame parts on which the floor panel comes to rest. The individual parts of the underframe with bottom part, feet and base frame are welded or screwed together.

Finally, EP 0 673 846 A1 E known from steel or plastic pallet is known with a multi-piece subframe consisting of steel tube, two longitudinal frame, two transverse frame and several corner and middle feet. On the subframe rests a floor pan of sheet metal with a Drainage floor, which has a gutter. Under the floor pan a transverse to the gutter fixed stiffening plate is arranged in the manner of a beam. In order to improve the range in terms of greater transport safety and simplification of the construction, two center feet are integrally formed on the two ends of the bridge-like stiffening plate.

In general, such pallets serve to receive an inner container made of plastic with an outer sheath made of sheet metal or lattice. In this case, the lattice work can be firmly connected with its lower base with the pallet.

Based on a pallet with the features mentioned above, the invention has for its object to provide a simpler design, so that it is extremely economical and inexpensive to manufacture.

This object is achieved by a pallet with the features of claim 1. Advantageous embodiments can be found in the subclaims.

By the invention, the subframe may consist of a one-piece or one-piece component, wherein the otherwise usual variety of items, such as corner feet, middle feet and support frame and the connection of this plurality of parts are avoided. It is only necessary to connect the free end portions of the one-piece base frame with each other, preferably inseparably, so that an economically manufacturable range is specified, which also has an extremely high stability or carrying power.

The circumferential wall of the base frame has an upper contact base, which is formed in the upper edge region of the peripheral wall by a preferably angled recording. This receptacle is used for fixing or guiding and as a support for resting on the subframe bottom tray.

Preferably, the free end portions are connected to each other by punching and / or welding.

Alternatively or additionally, it may also be recommended that the free end portions are connected to each other by means of a cross-beam.

The base frame may be formed in one piece or also in several parts, in particular in two parts.

According to another advantageous embodiment of the invention openings are provided in the circumferential wall of the subframe. These openings offer a possibility for receiving the forks of a forklift or conveyor or handling device, such as trucks. - In addition, the openings also lead to the reduction of the weight of existing steel sheet pallet.

The fact that in each of the four side walls of the base frame two openings are mounted, wherein the openings of opposite side walls are aligned, the openings serve not only the Weight reduction of the steel pallet, but also the inclusion of the forks of a forklift truck for transporting the pallet or the parked good or container.

It is advantageously provided according to another embodiment of the invention, that the sub-frame has a lower Aufstandsbasis, which throughout i. w. over the entire circumference of the subframe to i. w. the same level. As a result, a uniform surface load of the lower Aufstandsbasis is ensured.

Advantageously, the lower contact base of the subframe has a preferably groove-shaped or professional-like receptacle. This receptacle serves as a stack footprint, if the pallet is to be stacked on another pallet or the upper base of a grid of another pallet.

In this case, the angled receiving or the high boundary for connecting the bottom tray may be formed with the sub-frame.

Furthermore, it is advantageously provided that the upper Aufstandsbasis at least in the region of a side wall an arcuate receptacle for an i. w. corresponding trough-like embossment of the floor pan has. As a result, a clearance in the handling of the valve of the container is made.

The bottom pan itself has an iw circumferential raised outer edge, from the laterally outwardly angling off. This peripheral outer edge is merely interrupted in the area of the gutter. The laterally outwardly canting angled serves as a footprint of the bottom pan in the angled receiving the sub-frame. As a result, the free edges of the outwardly abkragenden bend are housed protected in the angular recording of the sub-frame, so that additional processing or flanging the angled bottom tray is not required to exclude, for example, injuries to the operator or transport personnel due to sharp edges.

Of particular advantage, according to a further embodiment of the invention, a circumferential recording or boundary of the sub-frame and a raised outer edge of the bottom tray an i. w. circumferential receiving groove. This i. w. over the entire circumference of the outer edge of the pallet circumferential receiving groove is interrupted only in a small section in the region of the gutter.

In this i. w. circumferential receiving groove is preferably a lower base of a latticework recorded, which is securely fixed in this receiving groove.

Preferably, the latticework is connected by means of brackets to the subframe and / or the floor pan. The pallet equipped with the lattice work is preferably used to transport liquid containers, which are deposited with their footprint on the bottom pan.

According to another advantageous embodiment of the invention, it is provided that opposite side walls of the sub-frame are connected by means of a cross-beam, wherein free angled legs of the cross-beam are connected to the inner sides of the side walls and end above the lower footing base. In this case, the crossbeam is used exclusively to stiffen the sub-frame or the pallet and not to increase the footprint of the range, since this already has a riot base, which i. w. consistently over the entire circumference of the subframe to i. w. the same level.

Preferably, the cross-beam is formed as a stamped part.

According to another embodiment of the invention, the cross-beam is welded to the sub-frame.

Further advantages and possible applications of the present invention will become apparent from the following description of an embodiment with reference to the drawing.

Figur 1

ein Ausführungsbeispiel einer erfindungsgemäßen Palette mit einteiligem Sockelrahmen, Versteifungsprofil und Bodenwanne in einer perspektivischen Explosionsdarstellung,

Figur 2

die Palette gemäß Figur 1 in perspektivischer, vergrößerter Teilansicht und Schnittdarstellung,

Figur 3

die Palette gemäß Figur 1 in perspektivischer Ansicht, wobei mit der Palette ein Gitterwerk verbunden ist, und

Figur 4

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Palette wie in Figur 1, jedoch mit zweiteiligem Sockelrahmen.

Show it:

FIG. 1

An embodiment of a pallet according to the invention with one-piece base frame, stiffening profile and floor pan in a perspective exploded view,

FIG. 2

the pallet according to FIG. 1 in a perspective, enlarged partial view and sectional illustration,

FIG. 3

the pallet according to Figure 1 in a perspective view, wherein with the pallet a latticework is connected, and

FIG. 4

a further embodiment of a pallet according to the invention as in Figure 1, but with a two-part base frame.

The pallet 20 shown in the figures is made of sheet steel and has a subframe, preferably i. w. Has a rectangular shape. The corners of the subframe i. w. quarter-circle curved. On the subframe rests a bottom trough 8. As can be seen in particular from Figure 1, the subframe is formed as a one-piece base frame 1, the free end portions 15, 16 are interconnected. In particular, the free end sections 15, 16 are preferably connected by means of a connecting plate 17. The connection of the free end sections 15, 16 is preferably carried out by means of punching and / or welding.

4 shows a variant of a pallet (20) is shown, which, however, has a two-part base frame (1) whose free end portions (15, 16 and 24, 25) by additional components, such as a connecting plate or by the traverse (4). he follows.

From the figures it is also apparent that perforations 9 are introduced or provided in a circumferential wall 21 of the subframe. In this case, two perforations 9 are preferably introduced in each of the four side walls of the subframe, wherein the openings 9 of mutually opposite side walls are aligned.

As can be seen in particular Figures 1 and 3, the sub-frame has a lower riser base 6, which lies throughout over iw the entire circumference of the sub-frame at iw the same level. As a result, the sub-frame or the pallet 20 with the lower Aufstandsbasis 6 on the entire surface on a flat surface, so that it ensures a uniform surface pressure.

As can be seen in particular from FIG. 2, the lower support base 6 of the subframe has a stack contact surface 2, which is designed as a flange-shaped or centering receptacle in the exemplary embodiment. Furthermore, an upper contact base 22 is provided on the subframe, which is formed in the upper edge region of the peripheral wall 21 by a preferably angled receptacle 7, which has a raised boundary 12. This angled receptacle 7 is used to insert the bottom tray 8 and possibly for connecting the bottom tray 8 with the subframe. Furthermore, the upper contact base 22, at least in the region of a side wall, an arcuate receptacle 10 for an i. w. corresponding curved trough-shaped embossment 11 of the bottom trough 8.

The bottom tray 8 has an i. w. starting from this outer edge 18, the bottom trough 8 towards the center towards a downwardly directed curvature on. Outwardly protrudes from the outer edge 18 from a laterally outwardly directed bend 3. This bend 3 is received by the receptacle 7 of the subframe.

The peripheral receptacle 7 or border 12 of the subframe and the raised outer edge 18 of the bottom pan form an i. w. continuous circumferential receiving groove 13 except in the area of the pallet 20 by the trough-shaped embossment 11 and receiving 10 are provided.

In this continuous circumferential receiving groove 13, as shown in Figure 3, a lower base 23 of a latticework 14 was added. The latticework 14 is connected by means of brackets 19 to the subframe and / or the bottom trough 8.

As can be seen in particular from FIGS. 1 and 2, opposite side walls of the subframe are connected by means of a crossbeam 4, wherein free angled legs 5 of the crossbeam are connected to the insides of the side walls and terminate above the lower contact base 6. The cross-beam 4 is formed in the embodiment chosen here as a stamped part. Furthermore, the cross-beam 4 is abgedichtet with the sub-frame.

LIST OF REFERENCE NUMBERS

1 -

base frame

2 -

Stack footprint

3 -

angling

4 -

crossbeam

5 -

leg

6 -

lower riot base

7 -

admission

8th -

floor pan

9 -

perforation

10 -

admission

11 -

Verprägung

12 -

boundary

13 -

receiving groove

14 -

latticework

15 -

end

16 -

end

17 -

connecting plate

18 -

outer edge

19 -

clip

20 -

palette

21 -

circumferential wall

22 -

upper contact patch

23 -

lower base

24 -

end

25 -

end

Claims (20)

1. Pallet (20) of sheet steel with a subframe, which preferably has a substantially rectangular shape, and with a base pan (8) resting on the subframe, wherein free end sections (15, 16; 24, 25) of the subframe are connected together, characterised in that the subframe is constructed as a socket frame with an encircling wall (21) and the encircling wall (21) has an upper support base (22) which in the upper edge region of the encircling wall (21) is formed by a preferably angled receptacle (7), wherein the receptacle (7) is constructed for insertion of the base pan (8).
2. Pallet according to claim 1, characterised in that the angled receptacle (7) has an upright edging (12).
3. Pallet according to claim 1 or 2, characterised in that the free end sections (5, 16; 24, 25) are connected together by means of a connecting plate (17).
4. Pallet according to claim 1 or 2, characterised in that the free end sections (15, 16; 24, 25) are connected together by punching and/or welding.
5. Pallet according to one of the preceding claims, characterised in that the socket frame (1) is of integral construction.
6. Pallet according to one of claims 1 to 4, characterised in that the socket frame (1) is of two-part construction.
7. Pallet according to claim 6, characterised in that the free end sections (15, 16; 24, 25) are connected together by means of a cross-member (4).
8. Pallet according to one of the preceding claims, characterised in that passages (9) are formed in the encircling wall (21) of the subframe.
9. Pallet according to claim 8, characterised in that two passages (9) are formed in each of the four side walls of the subframe, wherein the passages (9) of mutually opposite walls are aligned with one another.
10. Pallet according to one of the preceding claims, characterised in that the subframe has a lower support base (6) which lies at substantially the same level continuously over the entire circumference of the subframe.
11. Pallet according to one of the preceding claims, characterised in that a lower support base (6) of the subframe has a receptacle which is preferably centring and which serves as a stack support surface (2).
12. Pallet according to one of the preceding claims, characterised in that the angled receptacle (7) is constructed for connecting the base pan (8) with the subframe.
13. Pallet according to one of the preceding claims, characterised in that the upper support base (22) has at least in the region of a side wall a curved receptacle for a substantially corresponding, channel-shaped stamping (11) of the base pan (8).
14. Pallet according to one of the preceding claims, characterised in that the base pan (8) has a substantially encircling, elevated outer edge (18) from which an angled portion (3) protrudes laterally outwardly.
15. Pallet according to one of the preceding claims, characterised in that an encircling receptacle (7) of the subframe and an elevated outer edge (8) of the base pan (8) form a substantially encircling receiving groove (13).
16. Pallet according to one of the preceding claims, characterised in that a lower base (23) of a grating (14) is received in a substantially encircling receiving groove (13).
17. Pallet according to claim 16, characterised in that the grating is connected with a subframe and/or the base pan (8) by means of clips (19) or the like means.
18. Pallet according to one of the preceding claims 1 to 6 or 8 to 17, characterised in that opposite side walls of the subframe are connected by means of a cross-member (4), wherein free, angled limbs (5) of the cross-member (4) are connected with the inner sides of the side walls and end above the lower support base (6).
19. Pallet according to claim 7 or 18, characterised in that the cross-member (4) is a part shaped by stamping.
20. Pallet according to one of the preceding claims 7, 18 and 19, characterised in that the cross-member (4) is welded to the subframe.

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