DE102009003017A1 - Rectangular transport pallet, particularly flat structures for transport of containers, machines or stackable goods, has load deck and supports provided on lower side of load deck - Google Patents

Abstract

The rectangular transport pallet (1) has a load deck (10) and supports provided on the lower side of the load deck. The supports are supporting legs (30a,30b,30c,30d,32a,32d), and the load deck has a through hole (14), which is arranged between the supporting legs. The through-hole is arranged in the area of greatest deflection of the load deck. The transport pallet is made of plastic such as polystyrene.

Description

The The invention relates to a rectangular plan transport pallet made of plastic with a load deck, on the underside supports are provided.

pallets are flat constructions that are used for the transport of containers, machines or stackable goods are used. The loaded transport pallet can then z. B. be loaded by means of a lift truck. When loading of pallets is the adequate protection of the goods to be transported against falling down. For this purpose, the cargo is usually wrapped together with the transport pallet by means of a foil or welded.

pallets have in the lower area lateral recesses, it is z. B. forklifts enable, with their fork or their tines under the transport pallet drive to raise it. Most transport pallets are out Boards and squared timbers nailed together. There are also plastic transport pallets, Sheet metal or extremely stable Cardboard. As load deck plastic pallets have a closed Plate on.

It One-way pallets and reusable pallets are differentiated. One-way pallets are usually not very durable and usually remain with the recipient who She then disposed of. This disposal is usually difficult because of Recycle the pallets separately into their various recyclables Need to become. With the reusable pallets there are z. For example, the Euro pallet, in comparison is more stable to disposable pallets.

Furthermore There are transport pallets that are used in special areas become. Which includes the so-called CP pallets used in the chemical industry become.

task The invention is to provide a transport pallet made of plastic to provide, which is cheaper to produce with the same stability, less susceptible to cracking is and a lower height having.

These Task is solved with a transport pallet, in which the supports under the load deck support legs and wherein the load deck has at least one through hole, that between the support legs is arranged.

in the Compared to the known skids under the deck deck, which in the Wooden pallets z. B. from squared timbers is made by providing support legs Material saved in the production of the transport plate, so that this cheaper can be produced.

While skids and support bars only a two-sided passability by means of a lift truck, z. B. of a forklift truck the support legs be arranged so that the trafficability of all four Pages possible is. The handling of the transport plate is thereby improved.

The at least one through hole also saves material. Thereby, that the through hole in the area between the support legs arranged, can also be the height the support legs and thus the entire height the transport plate can be reduced.

Under Load the load deck bends in the area between the support legs through, which reduces the free space under the deck deck. on the other hand must be a minimum height of the clearance, so that the fork of the forklift under the deck can be retracted. It is therefore preferred that Provide through hole where where under load the strongest deflection takes place of the load deck. Cutting out the sagging Area allows it to make the support legs shorter.

It is therefore preferred, the through hole between the support legs to arrange that the center of the through hole to the adjacent support legs has substantially the same distance A. The distance A is the shortest Distance between the center of the through hole and the respective adjacent support leg. This distance A to the adjacent support legs may vary for manufacturing reasons fail. It is preferred to place in the space between a group of support legs, the group having three or more supporting legs, in particular four support legs includes to provide a through hole.

Also it is possible, that the loading of the transport pallet is not uniform, d. H. the introduced pressure forces can over the Area of Load decks vary. If the type of loading and distribution the pressure forces is known, this can be taken into account that the hole not centric between the support legs is arranged so that the distances between the adjacent support legs also be different sizes can.

It has been shown that the compressive forces introduced around the hole in the horizontal direction are mainly deflected from the through hole edge to the support leg, whereby the stability of the transport pallet can even be improved compared to the transport pallets with closed deck. Due to the through holes also material stresses within the load can decks are reduced.

The loaded transport plates are transported in trucks and there shaking exposed, especially if bad or cobblestone provided roads be driven. The loaded transport pallet will also be in the Warehouse and on the truck loading areas of Set down forklifts and then pushed over the ground or put right. this leads to in plastic pallets to additional Tensions in the material with the result of cracking, causing the Transport pallets especially if they are reusable pallets act, become unusable after a short time.

The Combination of support legs and through hole (s) has shown that the cracking can be significantly reduced.

The Size of the area of the Through hole is also important and according to the load the transport plate and the stability or the thickness of the load deck to choose.

It has been shown that the area F1 of the through hole more than 20% of the area F2 of the adjacent support legs should be defined inner circle. It is particularly preferred that the area F1 is at least 25%, in particular at least 30% of the area F2.

The Through hole may be circular, oval or n-shaped. At a N-shaped through hole, it is advantageous if the number of Corners is more than four.

It It is preferred that a Eckstützbein arranged at least at each corner of the load deck is.

The support legs are preferably evenly below the bottom of the load deck distributed.

It is advantageous if arranged in the center of the load deck, a support leg is. Such a central support leg is thus in the area of greatest deflection under load, so that a support in this area in terms of height is beneficial. A central arranged support leg does not hinder the navigability of the pallet from all four sides.

It is also preferred, between the Eckstützbeinen at least one other outrigger provided. This further support leg is preferably in the middle between the two Eckstützbeinen arranged. When providing additional support legs between the Eckstützbeinen Care must be taken to ensure that the trafficability of a forklift fork guaranteed is.

The support legs can have any shapes in cross section. Accordingly, the support legs be formed round or square in cross-section. It is preferable the support legs in cross section four or pentagonal train.

Further it is beneficial to the outside lying support legs in terms of to provide the edge of the load deck with sloping surfaces. The sloping surfaces of adjacent support legs together form a widened entry opening for the forklift fork. Damage to the support legs possibly incorrectly positioned forks will minimize. It is therefore also preferred, the pentagonal cross-section support legs especially for the outside lying support legs provided.

Preferably have the support legs a downwardly open cavity. These cavities open up the Possibility, additional To use fasteners.

Preferably At least one connecting element is provided with pins, wherein the cones in the cavities the support legs can intervene. Such fasteners can be made of metal or plastic. These fasteners can For example, be rails, each two Eckstützbeine connect with each other. Also, grids are possible at their junctions Have pins, so that several or all support legs by means of this connecting element can be connected whereby the rigidity of the transport pallet can be increased. can. Such fasteners are then useful if the transport plate exceptionally more heavily loaded will, as in the usual Use.

Preferably are on the top of the load deck means for fixing the cargo intended. These fixing means are preferably elevations whose Arrangement on the dimensions z. B. a container is adjusted so that the load on the transport pallet can not slip.

Preferably the transport pallet is a one-piece molding. In that sense the support legs and optionally the fixative integral part of the load deck. The production is thereby simplified, which in particular the mass production simplified such transport pallets. A connecting, in particular weld together From individual parts to a transport pallet is eliminated.

Preferably, the transport pallet is made of a material that is 100% recyclable. The transport pallet need not be disassembled for recycling, for example, to separate different recyclables. The transport pallet may after use as a whole without any additional measures be disposed of. The transport pallet is therefore particularly suitable for the use of disposable pallets.

It it is preferred to make the transport pallet from polystyrene, on the one hand the necessary stability on the other hand is well recyclable.

It is preferred, expanded polystyrene for the production of the transport pallet to use. Expanded polystyrene is also called foamed polystyrene or referred to as foam and is characterized by low Weight at the same time great stability out.

At the Contact with forklifts may cause static electricity and Discharge of the plastic material of the transport pallet come. The degree the charge depends also from the humidity. When using the transport pallet in areas with high humidity and / or in potentially explosive atmospheres Therefore, it is preferred for the regions (ex-regions) to be the EPS material to be provided with an antistatic material.

It it is preferred that the proportion of the antistatic material on the total material the transport pallet 0.5% by mass to 5% by mass, in particular 0.5% by mass to 1.5% by mass.

exemplary embodiments The invention will be explained in more detail with reference to the drawings. It demonstrate:

1 a transport pallet according to a first embodiment in a perspective view,

2 a transport pallet according to a second embodiment in a perspective view,

3 according to the transport pallet 2 with loading in perspective,

4 in the 2 shown transport pallet in bottom view,

5 an enlarged part of the in 4 shown bottom view,

6 a section along the line IV-IV in 4 and

7 the representation of 6 , wherein additionally a connecting element is shown.

In the 1 is a transport pallet 1 shown in perspective. This is a so-called CP3 pallet (chemistry pallet type 3), which is preferred in the chemical industry. Such pallets are typically square in plan with dimensions of 1140mm x 1140mm x 138mm.

by virtue of the measures according to the invention could the height across from the usual height of 138 mm can be reduced to 123 to 133 mm.

The transport pallet 1 has a plate-shaped load deck 10 on, on the underside support legs 30a to d and 32a to d are formed. The support legs 30a to d are at the corners 13a to d of the load deck 10 while the support legs 32a to d between the corner support legs 30a are arranged to d. All support legs 30a to d and 32a to close d flush with the edge 16 of the load deck 10 from.

Downtown 11 has the load deck 10 a passage opening 14 on, its center 17 downtown 11 lies.

Under load, the load deck bends 10 through, with the strongest deflection in the area of the center 11 occurs. The height of the open space 6 under the deck 10 would be reduced thereby, so that a forklift fork is no longer between the support legs 30a to d or 32a to d under the bottom of the load deck 10 could be retracted. By providing the through-hole 14 This area, where the maximum deflection takes place, is cut out, leaving the underlying space 6 not through the bent area of the load deck 10 is impaired.

In the 2 is shown a further embodiment, which additionally in the center 11 of the load deck 10 a centrally located support leg 34 having.

Also in this arrangement of support legs it comes in the area between the support legs 30a to d, 32a to d, 34 , in each case in the region of the center of the four-groups of support legs (s. 4 ), to deflections, so that in these areas the through holes 14a are arranged to d. Only in hole 14b is the center 17 the hole is drawn. The size and location of the through holes 14a until d is related to the 4 explained in more detail.

On top of the load deck 10 are fixatives 20 arranged to prevent slippage of the cargo. In the embodiment shown here are elevations 22 in pairs at the corners 13a to 13d of the load deck 10 are provided and whose arrangement are adapted to the shape of a container. The distance between the two surveys 22 a couple is like that chosen that the support legs 30a to d a stacked pallet between the surveys 22 fits. The load deck 10 has bevelled corners 15a up to d.

In the 3 is such a container 4 represented as so-called octabin. This octagonal container is used to hold plastic granules. A slipping of this container 4 is through the survey 22 prevented.

In the 4 is the bottom view of in 2 shown transport pallet 1 shown. It can be seen that the support legs 30a to d, 32a to d, 34 regularly over the bottom of the load deck 10 are distributed. That in the center 11 arranged support leg 34 has a square contour in cross-section, while all other support legs 30a to d and 32a to d have a pentagonal contour. This makes it possible, the outward-facing surfaces as inclined surfaces 38 train. These sloping surfaces 38 point with respect to the edge 16 of the load deck 10 an angle α, which is preferably in the range of 40 to 50 degrees. It is thus created a widened entry opening for the tines of a forklift fork, so that damage to the support legs are thereby reduced.

The through holes 14a to d are each centered between the foursome groups of support legs 30a to d, 32a to c and 34 arranged. The centers 17 the through holes 14a to d have a distance A to the respective adjacent support leg. In the 4 is the distance A with respect to the through-hole 14a and the support leg 30a located.

With centric arrangement of the through hole 14a the distance A defines the radius of the inner circle IK passing through the corners of the four support legs 30a . 32a . 34 . 32b is formed. In the illustration shown here, the area F1 of the through-hole has 14a an area which is about 32% of the area F2 of the inner circle IK. The size of the area F1 is corresponding to the area with the expected greatest deflection of the load deck 10 to choose.

In the 5 is a partial section of the bottom view of the transport plate according to 4 enlarged so that the sloping surfaces 38 can be seen more clearly. Furthermore, the 5 to see that the support legs (here the support legs 30b . 32b and 30c ) downwardly open cavities 42 exhibit. These are cylindrical cavities, which are provided on the one hand for the purpose of material reduction, but on the other hand are also suitable for inserting connecting elements.

In the 6 is a section along the line IV-IV in 4 shown. The design of the cavities 42 shows that these are in the area of the load deck 10 protrude.

In the 7 is a connecting element 50 in the form of a rail, which may consist of metal or plastic, drawn, the upwardly facing pin 52 that is in the cavities 42 the support legs 32d . 34 and 32b intervention. This will provide additional stabilization of the transport plate 2 reached.

1

pallet

2

pallet

4

container

6

free space

10

load deck

11

center of the load deck

12

plate

13a-d

corner

14

Through Hole

14a-d

Through Hole

15a-d

bevelled corner

16

edge of the load deck

17

center of the through hole

20

fixer

22

survey

30a-d

Eckstützbein

32a-d

outrigger

36

outrigger

38

Sloping drive-in area

42

cavity

50

connecting element

52

spigot

Claims (23)

In plan rectangular transport pallet ( 1 . 2 ) made of plastic and a load deck ( 10 ), on the underside supports are provided, characterized in that the supports support legs ( 30a to d, 32a to c, 34 ) and that the load deck ( 10 ) at least one through hole ( 14 . 14a to d) that between the support legs ( 30a to d, 32a to d, 34 ) is arranged. Transport pallet according to claim 1, characterized in that the through-hole ( 14 . 14a to d) in the area of maximum deflection of the load deck ( 10 ) is arranged. Transport pallet according to claim 1 or 2, characterized in that the center ( 17 ) of the through hole ( 14 . 14a to d) to the adjacent support legs ( 30a to d, 32a to d, 34 ) has substantially the same distance A. Transport pallet according to one of claims 1 to 3, characterized in that the surface F _{1 of} the through hole ( 14 . 14a to d) more than 20% of the area F ₂ of the adjacent supporting legs ( 30a , d, 32a to d, 34 ) defined inner circle IK amounts. Transport pallet according to one of claims 1 to 4, characterized in that the through hole ( 14 . 14a to d) is circular, oval or n-shaped. Transport pallet according to claim 5, characterized in that the through-hole ( 14 . 14a to d) has an n-angular contour with n> 4. Transport pallet according to one of claims 1 to 6, characterized in that at least in each corner ( 13a to d) of the load deck ( 10 ) a support leg ( 30a to c) is arranged. Transport pallet according to one of claims 1 to 7, characterized in that the support legs ( 30a to d and 32a to d, 34 ) evenly over the bottom of the load deck ( 10 ) are arranged distributed. Transport pallet according to one of claims 1 to 8, characterized in that in the center ( 11 ) of the load deck ( 10 ) a support leg ( 34 ) is arranged. Transport pallet according to one of claims 1 to 9, characterized in that between the corner support legs ( 30a to d) at least one further support leg ( 32a to d) is arranged. Transport pallet according to one of claims 1 to 10, characterized in that the support legs ( 30a to d, 32a to d, 34 ) are round or n-shaped in cross-section. Transport pallet according to claim 11, characterized in that that the support legs four- or pentagonal are. Transport pallet according to one of claims 1 to 12, characterized in that the outer support legs ( 30a to d, 32a to d) with respect to the edge ( 16 ) of the load deck ( 10 ) oblique surfaces ( 38 ) exhibit. Transport pallet according to one of claims 1 to 13, characterized in that the support legs ( 30a to d, 32a to d, 34 ) downwardly open cavities ( 42 ) exhibit. Transport pallet according to claim 14, characterized in that at least one connecting element ( 50 ) with tenons ( 52 ) provided in the cavities ( 42 ) of the support legs ( 30a to d, 32a to d, 34 ) intervene. Transport pallet according to one of claims 1 to 15, characterized in that on the upper side of the load deck ( 10 ) Medium ( 20 ) for fixing the load ( 4 ) are provided. Transport pallet according to claim 16, characterized in that the fixing means ( 20 ) Surveys ( 22 ) are. Transport pallet according to one of claims 1 to 17, characterized in that the transport pallet ( 1 ) is a one-piece molding. Transport pallet according to one of claims 1 to 18, characterized in that the transport pallet ( 1 . 2 ) consists of a 100% recyclable material. Transport pallet according to one of claims 1 to 19, characterized in that the transport pallet ( 1 . 2 ) consists of polystyrene. Transport pallet according to claim 20, characterized in that the material of the transport pallet ( 1 . 2 ) consists of expanded polystyrene. Transport pallet according to claim 20 or 21, characterized characterized in that the polystyrene material is an antistatic material contains. Transport pallet according to claim 22, characterized the proportion of the antistatic material is 0.5% by mass to 5% by mass is.