HU225677B1 - Pallet - Google Patents

Description

BACKGROUND OF THE INVENTION The present invention relates to a pallet having a horizontal support portion extending therethrough, legs extending therewith, with continuous solid outer surfaces, and a cover plate welded to the support portion to form a hollow interior space substantially perpendicular to the main plane of the pallet. The invention encompasses pallets in the conventional sense which are used for the storage of goods, the goods placed thereon, for their movement and transportation, and which are used for example with forklifts or forklifts.

Traditional pallets are made of different materials. In transport operations where hygienic conditions play a role and where sensitive products are transported, such as fresh food, in particular fresh meat, there is a difficulty in using pallets that are traditionally used for such products and which meet hygiene requirements. it must meet a number of criteria which go beyond the essential requirements in order to be able to withstand the loads involved in transporting these products.

Thus, said pallets are made of a material whose surface can be easily cleaned of contamination, in particular of infectious germs, and into which these pathogens and impurities are only very difficult or not to penetrate at all. In terms of material selection, metal, especially light metal or plastic, is essentially available here. They mainly use cost-based plastics, mainly injection-molded elements, which are mostly hollow and have internal ribs.

A further requirement for pallets is that such pallets must be resistant to mechanical stress in order to ensure that the heel strength of the heel during the dropping tests carried out during their inspection is not impaired and that the sealing of the pallet is not lost. Therefore, even after the drop test, the pallet must be able to pass a leak test carried out by blowing with compressed air.

In the case of conventional solutions, this complex set of requirements has so far been met by a strongly spring-loaded rib structure, which has enabled the pallet to pass the drop test without being destroyed.

However, it is disadvantageous in the prior art that, for proper flexibility of the rib structure, the ribs running vertically relative to the horizontal main plane, at least on one side, i.e. the top or bottom of the pallet, cannot be sealed with a closure plate.

As a result, conventional pallets have an open rib structure that allows dirt to penetrate into the rib structure on the top or bottom, making it difficult to remove dirt and germs in sharp corners and hard-to-reach edges.

WO 94/10051 discloses a flat top-side plastic pallet with a ribbed bottom. The pallet is provided with welded legs on the underside of this hollow bottom closed on all sides, under which an additional underside is welded. The legs have hollow ribs in their hollow interior, which support the side surfaces of the legs in the middle, thereby increasing the load bearing capacity of the legs.

DE 3 545 918 discloses a pallet made of plastic or metal having a horizontal upper support portion and nine feet projecting downwards therefrom, which are ribbed longitudinally and transversely to provide adequate strength. The ribs are substantially perpendicular to the main plane of the pallet and are disposed in such a manner that, together with the upper support portion, provide a pallet free of bending and twisting. While carrying out this task, no particular attention was paid to the prevention of forces at the corners.

DE 2 655 593 discloses a plastic pallet having a horizontal support portion and legs extending downward from it. In order to reduce the amount of plastic used so far, predominantly longitudinally extending stiffeners, which are also in contact with the legs, are connected to the relatively thin support, and metal stiffeners are preferably inserted into these stiffeners. This has the advantage that the metal parts can be collected separately when the pallet material is recycled. The stiffeners, together with a plurality of other stiffeners extending perpendicular thereto, provide a mesh stiffener for the load-carrying unit having a top and, if appropriate, a bottom cover. This design serves a different purpose, namely to save material, but is not capable of counteracting the power forces we are paying attention to.

The object of the present invention is now to provide a hygienic pallet that, despite being closed from all sides, has sufficient stability and flexibility to provide pallets with both a drop test and a pallet, while eliminating the disadvantages of previously known pallets which also meet hygiene considerations. meet the requirements of the compactness test. At the same time, pallet design must take into account the applicability of the simplest and most cost-effective production technology.

SUMMARY OF THE INVENTION The object is solved by a pallet with a horizontal support portion extending therethrough, legs extending therethrough, continuous solid outer surfaces, a cover plate welded to the support portion to form a hollow interior substantially perpendicular to the main plane of the pallet. According to the invention, the rib walls are at least in the area of the corners to the main plane

EN 225 677 Β1 having a force component showing the load and bumps on the pallet corners, partially absorbed by their elastic deflections, and partially distributed as load on the pallet behind them, wherein at least one corner wall wall extends around the outer wall extends to the outer sidewall.

In accordance with the further development of the invention, the pallet is now provided with continuous, solid outer surfaces having a hollow interior with ribs substantially perpendicular to the main plane of the pallet, the ribs being arranged at least in the corners such that Loads and bumps with a pointer force component and directed to the pallet corners are absorbed by the elastic deflection of the heel wall walls and are further transmitted to the pallet parts behind them as distributing loads. With this design, the pallets also meet the criteria for drop tests. Namely, the fact that starting from the right-angled corner, the parts behind it are strongly perforated as they move inward, drastically reduce the depth of the components of the force or power peaks.

This effect is reinforced by the preferred embodiment of the invention, in which the corner rib walls are formed in the legs and extend substantially over their entire height. The heel walls may be inclined in relation to the outer edges of the pallet when viewed in the main plane. It is also desirable if at least one corner wall extends radially around one corner from one outer side wall to the other outer side wall.

According to the invention, it is advantageous if at least one corner wall wall is offset radially inwardly from the corner, with the outer curve of the curved corner wall facing the corner. In this case, the curved corner wall preferably extends from one wall wall to another, which is at an angle to the former, which runs substantially at right angles to one another and to the outer edge of the pallet.

According to the invention, it may be advantageous in this embodiment to have at least one corner wall extending from the innermost of the outer curved wall walls to the outermost outer curved wall walls inside and substantially arched. Alternatively, a corner wall may extend obliquely inwardly from the innermost edge of the outer corner wall walls to at least one of the inner wall walls which are connected to the corner by their outer curve towards the corner. These inner and outer single and multi-curved corner rib walls serve to stabilize the boundary walls of the corner chambers, in particular the exposed walls, and serve as starting and end points for at least one additional corner rib radially running from the corner to the center of the pallet.

According to the invention, it is preferable to have an embodiment in which at least one of the outer walls has a hat-shaped and / or S-shaped, especially inward, curvature in the heel region, in particular in the area of the foot. Together with other structural members, this can serve as a spring element for protection against force.

In an embodiment of the invention, the rib walls and / or the corner walls are integrally formed with each other and the outer walls.

The invention also encompasses a pallet having a continuous solid outer surface having a hollow interior with ribs that are substantially perpendicular to the main plane of the pallet, with a portion resiliently deformed around the corners relative to the rest of the pallet. formed.

The elastic deformation feature of this solution is enhanced by a preferred embodiment in which the elastic deformable portion is formed as a curved groove in the carrier portion, in particular in the lower portion thereof, disposed between an outer flange connected to the corner region and another outer flange connected to the corner region. In this case, it is expedient to have a central rib along the length of the groove inside the substrate which rests on the underside of the topsheet which forms the upper closure of the substrate when the heel is bent. All this, while providing targeted flexibility, ensures sufficient stability.

According to the invention, it is expedient to have an embodiment in which groove rib walls extending upwardly along the edges of the groove are provided in the carrier portion, which are in particular in communication with the topsheet. However, according to the invention, it is advantageous if the at least one groove wall, particularly outside the arc, has a hat and / or an S-shaped portion.

According to the invention, it is also advantageous to have, in a horizontal direction, a central part, a topsheet and optionally a base plate, the top surface of the topsheet having a continuous upper closure plate, a lower base of the base plates having continuous bottom closure plates, a middle part, a top plate and a base. they are sealed to one another and are primarily welded together. This can easily be done with such ribbed pieces made of plastic, for example by injection molding.

In this case, it is also possible, in accordance with the invention, to include, in addition to the legs, the carrier portion and optionally the sliding sole portions.

According to the invention, it is expedient to have an embodiment in which, for stability, the topsheet and / or the base plates, starting from each of the closure plates, have outer sidewalls and ribs resting on the middle and engaging with the outer sidewalls and the ribs.

As mentioned above, it is expedient according to the invention for the pallet to be made of plastic and for the pallet, in particular the middle part, the topsheet and the base plates to be molded.

EN 225 677 Β1 procedure. The raw material according to the invention may be polyethylene; the pallet is preferably formed as a non-reinforced polyethylene injection molded part.

This creates a hygienic pallet that is easy to keep clean and resistant to the effects of falling. When assembling the components, care must be taken to establish sealed connections to prevent impurities, liquids, germinating materials from entering the pallet. Of course, the ribs used greatly increase the strength of the pallet. At the same time, the rigidity of the pallets can be controlled by fixing the rib walls, connecting them to the top panels and determining the distance to them. If the position of the ribs on the interconnecting parts coincides with each other, due to the heat effect of the welding, a certain distance must be kept on the ribs that are not to be joined, thus preventing the welding. This reduces the elasticity and springing effect of the corner wall walls only to the extent desired in areas where this would be disadvantageous in the area of the cover plates' end plates.

In addition to the mechanism described above, a resiliently deformable portion is provided in the carrier portion, particularly the lower portion thereof, which is formed as a curved groove. This groove has no sharp corner or hard to reach internal surface where harmful dirt could be deposited, so the groove does not create any obstacle or difficulty in proper cleaning.

The groove defines the area where the pallet bends due to the force applied. If this bend! and there is a real bending of the leg relative to the rest of the pallet, the center rib in the groove is pressed down and rests on the upper locking plate. This, in turn, is deformed upward by the effect and participates in the deformation as a flexible element. On the other hand, the elements will return to their original position once the impact has ceased. This avoids the displacement of the center portion relative to the topsheet and deflection along a well-defined line.

In the case of flexural deformation of the sole joining the individual legs and bending the heel area, the feet do not usually require a similar design, as these feet are so soft and unstable that they do not pose a serious obstacle to deformation. so there is no need to create a place.

The rigidity of the structure, the number and position of the interconnecting ribs are pre-formed when forming the ribs and determining their height. This also defines which opposing rib walls are welded to each other. Once the pallet has been assembled, there is no longer any need to adjust the vertical height of the ribs, for example by milling, and subsequently adjusting the stiffness of the corner areas.

Further details of the invention will be illustrated by reference to the accompanying drawings, in which: In the drawing, la. Fig. 1b is a perspective plan view of a preferred embodiment of a pallet according to the invention; 1a. FIG

2a. Fig. 1 is a perspective plan view of the embodiment of Fig. 1 broken down into elements that are already spatially arranged but not yet connected;

2b. Fig. 1 is a perspective, perspective view of the embodiment of Fig. 1 broken down into elements that are already spatially arranged but not yet connected;

FIG. Fig. 11b is a sectional view taken along line III-III of Fig. a

4a. FIG. 1 is a detail view of the embodiment of FIG. 1, a perspective view of the middle portion, FIG

4b. 4a. FIG

4c. 4a and 4b, respectively. FIG.

1a. 1b and 1b. Fig. 2a shows a preferred embodiment of the pallet according to the invention obliquely from above and from below, while Fig. 2a. and 2b. Fig. 2A shows the state before the joining of each part.

The pallet 1 according to the invention is illustrated by way of example in each case. its design conforms to the requirements of the relevant standard with regard to its basic design, appearance and dimensions.

As shown in FIG. and 2b. As illustrated in FIG. 1A, the pallet 1 has a central portion 21 with a topsheet 8 on its upper surface. Below the center portion 21 are sliding base plates 6 and base plates 9a, 9b.

As shown in FIG. In the bottom view of FIG. 2A, the middle portion 21 is in the form of a plate 5 extending downwardly from each of the upper carrier portions 4 of the same size as the base area of the pallet at each corner and at the center of the outer edges. In the longitudinal direction of the pallet 1, the three adjacent legs 5 are connected to one another by means of the sliding base members 6 to form a single base 7.

As such, each of the soles 7 has a cavity 25 formed between two and two of the three 5 feet to receive the forks of a forklift. Thus, the pallet 1 can be moved longitudinally, i.e. between the soles 7 and transversely, by means of the cavities 25 aligned with one another in the usual way with the aid of a forklift truck, with the forks of the forklift passing through the cavities 25.

The outer contour of the topsheet 8 corresponds to the outer contour of the central portion 21 and to the shape of its upper sealing flange. The same applies to the base plates 9a, 9b and the associated sliding plates 6. As a result, they can be secured after the closely aligned arrangement of the topsheet 8 and the base plates 9a, 9b

EN 225 677 Β1 welded to one another by heat welding to form parts made of polyethylene.

By joining the components together at least along their outer contours and thermally bonding and welding along the entire outer circumference, and also joining the inner ribs, a continuous, impermeable outer surface of the pallet 1 is formed.

2a, 2b. 9a, 9b are made of planar sheet material and do not have a raised upright edge or rib.

The topsheet 8, on the other hand, has an upper closure plate 8 'from which outer side walls 14a' and 14b 'project downwards along the entire circumference of the closure plate 8'. Likewise, the inner plate 8 'protrudes from the inner plate by the ribs 3' and 13 ', respectively, which serve to secure the topsheet 8 to the rib and thereby strengthen it. In addition, there are edge edges 22 on the upper surface of the topsheet 8 and, of course, the upper face of the closing plate 8 ', which prevent the goods loaded on the pallet from slipping from there. Similarly, about the center of the pallet 1, along the longitudinal and transverse axes, central ribs 23 protrude from the surface, which also prevent the load placed on the pallet 1 from slipping.

In order to stack the pallets 1 in the empty state, the transverse center ribs 23 are arranged only on the section where they do not prevent the pallet 7 placed above it from resting on the underside. Thus, the ribs 23 are located between the soles 7 of the pallet 1 above. The longitudinally spaced center ribs 23, on the other hand, are located in the middle blank 24 'between the central pedestals 7. To this end, the central lower sole plate 9b having only one lower closure plate 9b has correspondingly centered apertures 24 whose appearance and location correspond to the omission of the sliding base portion 24 'of the central portion 21 thereon.

FIG. 4c. Figure 11 is a sectional view taken along line III-III, along the section plane of the pallet 1 passing through one of the outer soles 7; Fig. 3 shows that at certain locations, the central portion 21 is provided with the same spaced-apart ribs 3 'for ordinary rib walls 3 running longitudinally and transversely, parallel to the outer side walls 14a, 14b. Thus, during assembly, the cross-member ribs 3 and 3 ', which cross each other, are placed in an overlapping position and thus can be thermally interconnected and welded together. The same applies to the outer sides 14a, 14b and 14a 'and 14b' respectively.

The plane 10 'of the contact between the topsheet 8 and the middle portion 21 is horizontal and arranged parallel to the main plane 10 of the pallet 1.

The details of the corner regions of the pallet 1 are shown in Figure 3 below, and in Fig. 4a illustrating about a quarter of the middle portion of the pallet 1. and 4b. and Figure 4c. 3A.

3, 4a. and 4b. As shown in Figures 1 to 5, the rib walls 3 in the center portion 21 of the legs 21 form a longitudinally and transversely extending chamber 19, while in the other areas, i.e. in the region of the support portion 4 between the soles 7 and 7 in sections where the pouches 25 are located for the fork of a forklift - the rib walls 3 project from the continuous outer surface only one way, downwards or upwards.

The ribs in the corner areas, usually one of the 5 legs, start here, in the preferred embodiment:

The arrangement of the corner rib walls 13 in the corner chambers 19 'is best illustrated in FIG. bottom view! can be observed.

The outer sidewalls 14a, 14b which overlap each other at the corners at the outer corner 26, on the one hand, and the normal rib walls 3x and 3a running substantially parallel thereto, form a corner chamber 19c in which the angular ribs 13 are arranged. the layout of the rib wall.

In the area of the outer corner of the corner chamber 19 'there is a curved, substantially quarter-shaped, corner wall wall 13a, 13b with a distance between the outer corner 26 and each other, each of the outer side walls 14a and 14b 13a, 13b forms the center of the arc of the corner walls. Thus, the corner rib walls 13a, 13b face inwardly towards the center of the pallet 1 with their outer curves. In the radially opposite inner corner of the corner chamber 19c, an arcuate, curved, substantially quarter-shaped, corner wall wall 13c is arranged which, analogous to the foregoing, . Here again, the inner corner formed by the ribs 3a and 3x of the corner chamber 19 'forms the center of bending of the curve of the rib wall 13c so that the outer curve of the corner wall 13c points toward the corner 26 of the pallet.

The size of this corner wall 13c corresponds approximately to the size of the larger, inner corner wall 13b. The radius of the corner walls 13b, 13c is approximately the same as the width of the corner chamber 19 ', hence its smaller size. These two arcuate corner chambers 13b, 13c are connected to each other by a radial corner wall 13d, which is not straight but slightly curved in shape from the corner 26 of the pallet 1. While this corner rib wall 13d extends approximately at right angles to the outer curved curve of the corner wall wall 13b, at its other end it is smoothly inserted into the outer circumference of the inside curved corner wall wall 13c.

HU 225 677 Β1

The other radially running corner wall 13e, which also extends at right angles to the outer surface of the quarter-shaped corner wall 13b at a certain distance from the corner point 13d, also gently fits into the wall 3a. The latter at the same time forms one of the outer boundary walls of the foot 5 and thus of the corner chamber 19 '. In addition, the longitudinal outer side wall 14b of the corner chamber 19 'has a hat-shaped curvature 27 pointing inwardly of the corner chamber 19', the junction of the largest outwardly curved corner wall 13b and the corner chamber 19 ' , in the area between the corner along side wall 14b.

As shown in Fig. 3, the center portion 21 has a uniform height along its entire length, and the same uniform height is provided by the ribs 3 and 13, as well as the outer side walls 14.

Another way to create a corner radius is by, as shown in Figures 4a, 4b. As illustrated in FIGS. 2 to 4, the corner walls 13 in the corner chambers 19 'extend upwardly through the central portion 21. As a result, ribs are no longer needed in this area of the topsheet 8.

However, not every corner wall 13 is connected to the top plate 8 and / or the base plate 9 by its lower and / or upper ends, but only a part of the corner wall 13 is used for this connection, in particular by welding.

4c. In the exemplary embodiment of Figures 1 to 4, only the inner quadrilateral corner walls 13c and the outer quadrilateral corner walls 13b are largest welded to the topsheet 8 such that the topsheet 8 has angular ribs 13c ', 13b' arranged and formed in an analogous manner. 2b. can be seen. In addition, the corner plate wall 13a 'corresponding to the curved corner wall 13a is also provided in the topsheet 8, but the corner walls 13a and 13a' are not welded to each other. When joining the entire topsheet 8 with the central portion 21, this jointing is avoided by making the heel walls 13a and 13a 'lower, so that they do not touch the opposite face wall 10'. a.

2b. FIG. 3B further illustrates that the topsheet 8 lacks the corner wall walls corresponding to the corner walls 13d, 13e. Instead, in the corner chamber of the topsheet 8, slightly curved corner wall walls 13 'run transverse to its longitudinal direction, on both sides of the outer rim of hat-shaped curvature 27' facing each other from the outer side wall 14b 'to the rib wall 8'. confined to each other.

The above-described embodiment allows the loads and bumps acting approximately in the main plane 10 to be resiliently applied to the pallet 1 on the one hand and to the other areas of the pallet 1 behind the polar area so that the momentary deformation of the pallet 1 no permanent deformation or damage after re-formation.

The same effect can be achieved in another embodiment of the pallet 1 according to the invention, in which, as illustrated in FIG. 3, a groove 12 in the lower surface of the base portion 4 of the center portion 21 is used to determine the desired bending position around each corner. .

As in Fig. 4b. 4c and 4c. As shown in FIG. 3B, the groove 12 is formed curved around the corner 26 with curved sections at both ends toward the outer side walls 14a, 14b. On the narrower side of the pallet 1, the groove 12 ends at about half of the distance between the two soles 7 on the longitudinal side of the pallet 1, the distance from the foot 5 being only approx. halve.

The groove 12 has a cross-section of an arc segment of less than 180 ° with an angle range of about 120 ° to 160 °.

Due to the increasing thickness of the carrier portions 4 towards the edges, the groove 12 is terminated in these thickening edge regions so that it does not extend to the outer sidewalls 14a, 14b because the depth of the groove 12 is smaller, approx. is equal to half the thickness of the carrier portion 4 of the central portion 21. This is clearly shown in Figure 3.

When viewed from the upper side of the middle portion 21, the groove 12 acts as a protrusion in the lower end plate of the carrier portion 4. The end plate has vertically formed ribs 3 which are at right angles to each other and parallel to the outer side walls 14a, 14b of the pallet 1. These rib walls 3 are not provided over the groove 12. Instead, the ribs 3 are turned into a groove wall 17 along one of the edges of the groove 12, also vertically at the height of the other ribs 3, thus also reaching the contact plane 10 'of the interconnected portions.

4c. Referring to FIGS. 1 to 4, the groove ribs 17 have an S-shaped or a hat-shaped portion 18 at the same height, preferably between the arcuate portion and the longitudinally extending portion. As shown in FIG. As illustrated in FIG. 6B, at least one of the groove walls 17, for example the outer of the two groove walls 17, must have such a section 18.

In addition, the central groove 15 runs along the centerline of the groove 12. However, this central rib 15 extends upwardly in the plane of contact 10 '.

The topsheet 8 has a downwardly extending rib, which includes the groove ribs 17 'and, like the middle portion 21, there are no conventional ribs 3 between the groove ribs 17'. In addition, the center panel 15 lacks a center rib 15 extending through the center of the groove 12 so that the center rib 15 of the center portion 21 ends at the groove 12 just below the end plate 8 'of the top panel 8.

When, due to excessive load on the heel area, the heel area deflects relative to the rest of the pallet 1, the direction of deflection, he6

The position of the groove 12 is determined by the position of the groove 12 (bending downwards in the right-hand corner area in Figure 3). As a result of the deformation, the groove 12 is further inflated and the center rib 15 of the groove 12 is pressed from below onto the lower surface of the sealing plate 8 '. The stability achieved by its ribs and its connection with the central part 21 forms a spring element, thereby limiting the amount of deflection and causing the deformed, deformed parts to be restored to their original position without damage.

The sliding base portions 6 between the legs 5 are dimensioned relatively poorly so that this portion has little resistance to bending.

4a. Fig. 4A also shows that the center rib 15 of the groove 12 runs without S-shaped or hat-shaped bending over the entire length of the groove 12.

Claims (14)

PATENT CLAIMS A pallet with a horizontal support portion (4) extending therethrough, legs (5) extending therewith, continuous, solid outer surfaces, a cover plate (8) welded to the support portion (4), wherein the hollow interior is the pallet (1). ribs (3) extending substantially perpendicular to its main plane (10), characterized in that the loads and strokes at least in the corners have a force component pointing to the main plane (10) and are partially resilient to the corners of the pallet (1). arranged in the form of load-bearing corner walls (13, 13 '), which absorb the deformation of the pallet (1) and extend over part of the pallet (1), with at least one corner wall (13a, 13b, 13c, 13d, 13e) curved around one of the corners (11) extending from the outer sidewall (14a) to the other boundary outer sidewall (14b). Pallet according to Claim 1, characterized in that each leg (5) is arranged at least in the corner regions of the pallet (1) and the corner rib walls (13) are formed in the legs (5) and extend substantially over their entire height. and, viewed in the main plane (10), are inclined relative to the outer edges of the pallet (1). Pallet according to Claim 1 or 2, characterized in that the at least one corner rib wall (13c, 13d, 13e) is offset diagonally inwardly from the corner (11), wherein the curved corner wall (13c) has an outer curve in the corner. (11), and the curved corner wall (13c) extends from one wall wall (3a) to another wall wall (3x) enclosing the former and extending substantially at right angles to the outer edge of the pallet (1), and at least one corner wall wall (13d) extending from the innermost of the outer curved corner walls (13a, 13b) to the outermost outer corner wall walls (13c) and is substantially curved. 4. Pallet according to any one of claims 1 to 3, characterized in that only a part of the corner rib walls (13) is firmly connected to the top plate (8) and / or the base plates (9a, 9b) by its upper and / or lower ends. 5. Pallet according to any one of claims 1 to 4, characterized in that at least one corner wall (13e) extends obliquely inwardly from at least one of the outer wall curved wall walls (13a, 13b) into which the corner ( 11) facing the corner rib walls (13c). 6. Pallet according to one of claims 1 to 3, characterized in that at least one of the outer side walls (14a, 14b) has a hat-shaped and / or S-shaped, in particular inward curvature in the region of the heel (11), in particular the leg (5). 7. Pallet according to any one of claims 1 to 4, characterized in that the rib walls (3) and / or the corner rib walls (13) are integrally formed with each other and the outer side walls (14a, 14b). 8. Pallet, with a horizontal support portion (4) extending down therefrom with legs (5) extending downward therefrom, with continuous solid outer surfaces having a hollow interior with ribs (3) extending substantially perpendicular to the main plane (10) of the pallet (1). characterized in that an elastic deformable part is formed around the corner regions of the pallet (1) in the carrier portion (4) in an intended manner relative to the rest of the pallet (1). Pallet according to Claim 8, characterized in that the intended elastically deformable part is formed as a curved groove (12) in the carrier part (4), in particular in its lower part, which is one of the outer edges connected to the corner area and the other outer part. centered on the lower surface of the cover (8) forming the upper end of the cover (8) in the case of deflection of the heel area, in particular along the length of the groove (12), particularly along the center of the groove (12). ) is running. Pallet according to Claim 9, characterized in that groove ribs (17) projecting upwardly along the edges of the groove (12) are arranged in the interior of the carrier portion (4) and which are in solid connection with the topsheet (8). in particular, the outside groove wall (17) has a hat and / or an S-shaped portion (18). 11. Pallet according to any one of claims 1 to 5, characterized in that it comprises a central part (21), a top plate (8) and optionally base plates (9) viewed from a horizontal direction, wherein the top surface of the top plate (8) they have lower end plates (9 ') and the middle part (21), the top plate (8) and the base plates (9) are sealed together, in particular welded together. Pallet according to claim 11, characterized in that the middle part (21) comprises, in addition to the legs (5), a carrier part (4) and optionally the sliding base parts (6). 13. Pallet according to any one of claims 1 to 3, characterized in that the cover plate (8) and / or The base plates (9), starting from each of the locking plates (8 '), resting on the outer side walls (14a, 14b) and the ribs (3,) of the middle part (21). 3a, 3x) and outer side walls (14a ', 14b') and ribs (3 ', 3a', 5) interconnected 3x '). 14. Pallet according to one of Claims 1 to 3, characterized in that the pallet (1) is made of plastic and in particular the middle part (21), the top plate (8) and the base plates (9) are formed by injection molding and molded as polyethylene, in particular unreinforced polyethylene.