DK152988B - PLASTIC PALLET - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a plastic pallet with a load-bearing upper deck, supporting legs defining between it the openings for forklift arms - and optionally a lower tire or median - in which at least one tire and possibly also the members have outer profile carriers whose inward-facing sides are connected by means of an insert. each having a top and a bottom wall connected to it by means of an intermediate part, which walls together form an outwardly closed and inward open profile, which is supplemented by means of the insert to a "first" hollow profile closed along its periphery, from which eliminates outriggers.

In such a known plastic pallet (DT-OS 2 403 374), in particular, the "first" hollow profiles contribute to obtaining such pallet rigidity that the pallet can pass the German and Japanese plastic pallet test. Furthermore, at the perimeter of the pallet and around the individual support legs, an unbroken and, if desired, rounded or sloping surface can be obtained. In the known plastic pallets of the above-mentioned type, the first hollow profiles are arranged as the hollow profile frame of the plastic pallet, which consists of several building elements which are placed at the sides of the prefabricated insert. Two "first" hole profiles extend in the frame area parallel to each of the pallet length edges. In the insert itself, no hollow profile is formed in this known pallet.

The invention has for its object to increase the rigidity of a plastic pallet of the kind in question in a transverse direction.

In order to solve this task, the invention has provided a plastic pallet of the kind in question, according to the invention, in the insert, at least one "other" hollow profile, which is closed along its periphery, which is arranged in at least one tire - possibly also in a middle fellow. Such a "second" hole profile is conveniently extending at a distance from and parallel or at least with a parallel extending component relative to the two outer profile supports. However, it may also extend across these, for example perpendicular to the two outer profile supports, or diagonally between the corners of the plastic pallet.

The "other" hollow profile or more of these "other" hollow profiles can be made in the insert by the use of side cores which are retracted in the lateral direction when removing the workpiece from the mold by prefabricating it as a building element in the mold. If one produces a single "second" hollow profile using two such from the two outer ends of the "second" hollow profile opposite to the extending side cores, side cores having a cross-sectional dimension that is only half the cross-sectional dimension of the plastic pallet to be made are needed. The "second" hole profile at its ends may optionally be closed by a further operation or using a lid portion. The cost of this manufacture is relatively high, but on the other hand, the advantage is obtained that the "other" hollow profile in question can be formed in a single prefabricated building element, so connection zones between the various prefabricated building elements are not necessary.

However, it is preferred to produce the "second" hollow profile in question, as is the "first" hollow profile at the edge of the plastic pallet of several, especially two, prefabricated building elements which are completed in the connection zone to the "second" hollow profile. This gives the advantage that the insert's building elements can be manufactured by relatively small machines, which are available in large numbers. Furthermore, the complementary parts of the "other" hollow profile can be designed in advance so that, at the original design, this is also closed at the ends. It is then only necessary to design at least one of these building elements a profile which is open in the direction of the other building element and which is otherwise closed. Also, the design cost becomes very small as it is sufficient to use very short, retractable side cores. The connection of several such building elements in the insert with the present technical state is no longer particularly problematic, although the connection of several building elements requires an additional work operation.

It is possible to build the insert between the two lateral profile supports, according to the invention, having at least one pair of adjacent interconnecting members, at least one of which forms an outwardly closed and towards the other intermediate open profile. , which together with the other intermediate piece is supplemented with the "second" hole profile. Similarly, between the two outer profile supports, a series of more than two intermediate members may be formed forming around their "connecting hole" a different hole profile.

The insert may have at least one inner profile carrier extending between the outer profile carriers having at least in one deck and possibly also in a middle one an upper wall and a lower wall connected to it by means of an intermediate part forming a laterally open spacers, and spacers may be connected to both sides of the inner profile carrier, completing the open profile of the inner profile carrier to the "second" hole profile. Thus, when an inner profile carrier contributes to the formation of the second hollow profile, this construction can be multiplied by placing between the two outer profile supports a consequence of intermediate, inner profile carrier, intermediate profile, inner profile carrier, intermediate with two or more internal profile carriers which each in pairs or three together contributes to forming a "different" hole profile.

In the latter option, the inner profile carrier on both sides of its intermediate portion with the upper and lower walls can form a laterally open profile which can then be closed by the adjacent intermediate member to a "second" hole profile. Thereby, in addition to the two intermediate portions of the inner profile carrier together with the spacers arranged on both sides, a pair adjacent to each other and by means of the intermediate part, if necessary, but not necessarily "separate" hollow profiles, are obtained.

As long as it is only an increase in the bending stiffness of the pallet, the support legs for the insert can be avoided or possibly based on intermediate pieces. However, there is preferably provided support for the pallet load resting on the insert at least one support leg projecting from the "other" hole profile. These support legs may be positioned at the edge of the pallet not formed by the outer profile carriers and / or further inside the insert, ie. immediately in the center of the pallet or they may be positioned in pairs with respect to this center.

It is then possible per se, in a known way, to make the support legs sufficiently sustainable as separate building elements and then connect them to the building element (s) forming the "other" hole profile. However, it is more advantageous to manufacture the support legs together with and as an integral part of the building element (s) forming the "second" hole profile, and thus immediately in designing these building elements.

A good compromise between sustainability and low material consumption is achieved when the insert's support legs form a circumferentially closed hole profile and are arranged and designed to extend vertically through the "other" hole profile. The through-out support leg may then only be formed on an internal profile carrier, but may instead be complementary to two adjacent building elements, for example two intermediate parts, or even three or more adjacent building elements, e.g. two intermediate members and a profile carrier disposed therebetween.

The continuous positioning of the support leg has the characteristic that the two ends of the support leg are open if they are not closed by special measures. The open profile of the support leg may, together with inner vertical reinforcing members, contribute to the increase of the sliding safety of the surface of the cover, as desired.

Often, however, it is desired that the ends of the support leg are also closed. The support legs of the insert can then, but also in the form of open-ended support legs, conveniently form a hollow profile closed along its periphery, where complementary connected peripheral areas are formed in one piece with complementary parts of the other hollow profile. You can then make the inner support leg with a contour that is different from the continuous application of the above-mentioned alternative again by means of short, retractable side cores in the mold for the manufacture of the building element concerned, and you can then possibly already during the design achieve closure of the support leg at the ends.

In order to form on the outside of the tire in question known grating-shaped grating, which reduces the sliding properties of the plastic itself, the parts of the tire formed by the tire may have honeycomb or cross-grid vertical parts which may be suitably known in the manner known reinforced and at the same time with a circumferential rim portion may contribute to the closure of the adjacent "first" or "second" hole profile.

The "other" hole profiles give the plastic pallet increased stiffness in one of the directions in which it extends. In order to provide a corresponding stiffness in the transverse direction, according to the invention there may be found at least one "third" hollow profile closed along its periphery extending through the insert across the second hollow profile or "other" hollow profiles. This, when extending perpendicular to or across the outer profile supports, is preferably closed at the ends of these outer profile supports. The "third" hole profiles are preferably used for cross-stiffening between the outer profile supports and then extend perpendicularly to them or along one of the diagonals of the plastic pallet. However, they may also extend at a distance between the outer profile carriers when the "other" hole profile or the "other" hole profiles extend across the outer profile carriers.

Also, such a "third" hole profile may be formed on the insert by shaping this or its building elements by retractable side cores. You can then manage with relatively short side cores when the insert is composed of several building elements, such as several intermediate parts and possibly also of at least one inner profile carrier, and when the "third" hole profile in question can be formed separately in the different building elements.

Using "other" hollow profiles, but preferably also the "third" hollow profiles, it is possible to avoid having separately manufactured profile carriers having to build a hollow profile frame which is closed inwards, as is the case with known plastic pallets of the above-mentioned kind. Further, the completion of the outer profile carriers at the transverse outer edges of the plastic pallet according to claim 14 can be effected by means of a "third" hollow profile formed in the insert itself extending transversely between the first hollow profiles. gang "other" hole profile. However, this does not preclude the possibility of building a circular frame of profile carriers in a plastic pallet according to the invention. However, said preferred solution enables the construction of a frame pallet with fewer connecting zones than before, for example, in the minimal case only with two connecting zones between one outer profile carrier and the insert and between this and the other outer profile carrier, while forming the "third" hollow profile. no additional connection zones are needed between adjacent building elements. Also, when a "second" hole profile between at least two of the insert's building elements is complementarily formed by these, compared to a plastic pallet of the above-mentioned type with circumferential profile supports, one or two connection zones can be saved depending on whether one internal profile carrier is used or only applied two spacers side by side to form a "second" hole profile.

However, the "third" hollow profile may not only be used for completing a hollow profile frame, but instead or in connection therewith to produce intermediate stiffeners for the plastic pallet by means of "third" hollow profiles according to claim 15. Such a hollow profile may then, for example, extend between the middle of the two outer profile carriers, or more equidistant to this middle, "third" hole profiles may be found. Alternatively, in the latter arrangement of hollow profiles one can form hollow profiles analogously to the "other" hollow profiles between adjacent building elements.

The construction of the plastic pallet according to the invention can be used both for single-deck plastic pallets where only one upper deck rests on support legs, as well as for double-deck plastic pallets and especially for co-pallets. The latter may even, in emergencies, be stiffened in their upper deck using "second" or possibly "third" hollow profiles - especially frame-shaped and with always cross-shaped extra stiffening - without laterally extending profile supports preventing interference along the rails. According to claim 16, a double tire pallet with wide recesses for accommodating wheels on a forklift can also be provided, compensating for the lack of material stiffening in the wide recesses in the lower tire, in that these recesses are enclosed by subframes formed by "first "," second "and" third "hole profiles.

The spacers and / or the inner profile support are preferably formed in one piece throughout their height. The spacers do not have to be formed in one piece along the profile supports, but especially when there are only smaller molds available, longitudinal spacers may be arranged in the longitudinal direction of the outer profile supports. You can then, if desired, use continuous outer and possibly inner profile carriers.

The plastic pallet according to the invention, which consists, for example, of polyethylene or polypropylene, is usually made of solid material by injection molding. However, the invention is not limited to a particular method of preparation. Thus, for example, one can also use molding or blow molding, as well as using foamed plastic. It is also possible in the known way to supply the plastic with inserts. Thus, the peculiarity of the invention that the "first", second and / or "third" hole profile is closed along its periphery does not preclude the existence of certain recesses which do not significantly impede the function of the plastic pallet according to the invention. various known methods can be used, however, as is the case with mirror welding, but other welding methods or adhesive methods can also be used. / or mechanical connections between the building elements The use of the term "outer" profile carriers does not preclude the addition of additional building elements to the exterior of these external profile carriers.

The invention will be described in more detail below with reference to the schematic drawing showing embodiments of the plastic pallet according to the invention, and in which fig. 1 shows a double deck pallet according to the invention, which is viewed obliquely from above and in which the top and bottom tires are formed substantially the same; FIG. Fig. 2 is a diagonal view of a double tire pallet according to the invention, in which the lower tire has wide cuts through which the wheels of a forklift truck can pass; 3 is an oblique view of a pallet according to the invention with meds; FIG. 4 is a top view, with separated parts, of a tire, double tire or co-pallet according to the invention, the roof as shown in FIG. 1 is made of four parts; FIG. 5 is a top view, with separate parts, of a tire, double tire or co-pallet according to the invention, the roof as shown in FIG. 3 is made of six parts; FIG. 6 is a plan view of the tire, double tire or co-pallet according to the invention, the top deck being also designed as in FIG. 3, but of seven parts; 7 is a top view of a single-deck, double-deck or co-pallet according to the invention, wherein the deck is formed as a mixture of the one shown in FIG. 1 or 2 and FIG. 3 and formed in five parts; FIG. 8a. 4, seen from above, FIG. 8b the embodiment of FIG. 8a is a side elevation and sectional view taken along line A-A of FIG. 8a, the embodiment of FIG. 2 is shown with fully drawn lines and supplemented with dashed lines to indicate the one shown in FIG. 1; FIG. 8c from below, as shown in FIG. 8a to the spacer shown in FIG. 2; FIG. 8d from the end of FIG. 8a as well as that of FIG. 1 as for the one shown in FIG. 2; FIG. 8e is a sectional view taken along line B-B of FIG. 8c, fig. 9a is a top plan view similar to that of FIG. 5 and which, with a somewhat narrower foot portion, analogously applies in FIG. 6, FIG. 9b shows the embodiment of FIG. 9a is a side view and partly in section along the line C-C of FIG. 9a and for use in a co-pallet of FIG. 3, FIG. 9c from the end of FIG. 9a in the embodiment shown in FIG. 9b for a co-pallet; FIG. 10a is a spacer according to FIG. 7, FIG. 10b shows the embodiment of FIG. 10a is a side view and partly in section along the line D-D in FIG. 10a, the embodiment of FIG. 2 is shown in solid lines and supplemented by dotted lines to indicate the embodiment of FIG. 1, FIG. 10c from below, as shown in FIG. 10a for the embodiment of FIG. 2, FIG. 1 Od from the end shown in FIG. 10a as well as that shown in FIG. 1 as to that of FIG. 2; FIG. 10 is a section along line E-E of FIG. 10c, fig. 11a shows an outer profile carrier according to FIG. 4 or an internal profile carrier according to FIG. 7, seen from one side and the other, FIG. 11b is a plan view of the inner profile carrier of FIG. 7 or with a slight change of rounding at the end surfaces the same for an outer profile carrier according to FIG. 4, FIG. 11c is a section along the line F-F of FIG. 11b, FIG. Fire a section along the line G-G in fig. 11b for an internal profile carrier; FIG. In one of FIG. Fire corresponding section along line G-G when FIG. 11b is modified to show an outer profile carrier; FIG. 12a is a top view of an outer profile carrier according to FIG. 5-7, FIG. 12b the outer profile carrier of FIG. 12a is a side view and partly in section along the line H-H of FIG. 12a, FIG. 13a shows an inner profile carrier according to FIG. 6 is a plan view of FIG. 13b shows this inner profile support from both sides, in which FIG.

8a-13b a larger scale than in FIG. 1-7.

The three embodiments of a plastic pallet shown in FIG. 1, 2 and 3, each has a load-bearing cover 1 supported by equal-length support legs 3. In addition, special "first" support legs 4 are provided at the four corners of the plastic pallet, "second" support legs 5 at the edge of the pallet and midway between the corners and " third "support legs at the center of the pallet, as can be seen in particular in FIG. 8b, 11a and 13b.

The support legs 3 define engagement openings 8 for fork-lift arms not shown. Incidentally, all those of FIG. 1-3 illustrate so-called bidirectional pallets, in which engagement ports 8 are arranged in pairs at all four sides of the square pallet. However, the pallets can also be changed to have a square shape that is different from the square shape, and / or that they are designed as one-way pallets only. More or less than two engagement openings can also be found at each pallet side.

The 1 and 2, both are a double tire pallet, where a lower tire 9 is provided beneath the supporting legs 3. 1, the same design as the cover 1 is shown in the main axis. It is possible to design the cover 1 and the lower cover 9 identically, since the pallet can then be used with any side facing up. However, it is also possible to specially adapt the deck to the special function as a load-bearing tire and the lower tire to the special function as a support tire. For example, the covered and lower deck may have different heights, with the upper deck preferably having a greater height than the lower deck.

FIG. 2 shows a plastic pallet, where in the embodiment of FIG. 1, with no other changes in the construction between an outer frame part of the lower deck and a central cross extending over this frame part, four wide recesses 10 for accommodating wheels on a fork in a truck not shown are found. These recesses are rectangular in the embodiment shown, but may also have other contours.

Instead of a lower tire 9, as in the one shown in FIG. 3, at the lower ends of the support legs 5, are provided with 12, and in the embodiment shown there are two outer members and one with the same distance from them and in the middle between these extending inner members. However, one can also avoid the use of the middle mede or use a greater number of adjacent meds.

From the Figs. 1, 2 or 3, one can also derive in a non-shown way a single tire pallet having only one upper tire 1 and support leg 3, but neither a lower tire 9 nor a middle 12.

At the engagement openings 8, the limiting walls at the support legs and the tire in question are suitably designed so that they are rounded or sloped in such a way as to form an insertion funnel for forklift or lift truck arms. Corresponding rounds 14 of the support legs are further detailed in FIG. 8d, 9c, 10d and in FIG. 11a and 12b. Analogue rounds 15 are shown in FIG. 8b, 9b, 10b and 11a.

All of these plastic pallets are made up of several prefabricated building elements. Furthermore, the one shown in FIG. 4-7 show two outer profile carriers 16, two inwardly facing sides, the inward facing sides of which are connected by means of an insert 18. This insert can be formed in one piece. However, the embodiments of FIG. 4 with two-piece insert 18, according to FIG. 5 with quadruple insert 18, according to FIG. 6 with five-piece insert 18 or according to FIG. 7 with triple insert 18.

With regard to the outer profile carrier 16, partly in FIG. 4 and partly in FIG. 5, 6 and 7 show two different constructions.

The FIG. 4 is shown in detail in FIG. 11a and 11le, while the construction of FIG. 5-7 are shown in FIG. 12a and 12b.

It is common to all embodiments that the outer profile carrier 16 is integrally formed in its entire height. Furthermore, there is also an upper wall 20 and a lower wall 22 which extend substantially horizontally in both the upper deck and the lower deck or in the middle, and which are connected to one another by means of an intermediate part 24 located at the outer edge of the plastic pallet towards a the effort open profile.

The intermediate portion 24 extends closed along the tire or the entire rim and further extends in the region of the engagement openings 8 with the rounding 15.

The "first and second support legs" placed on the outer profile carrier 16 may be of two different types.

In either case, the support leg forms a hollow profile closed along its circumference. This is stiffened by the one shown in FIG. 1, 2 and 4 illustrate intersecting vertical intermediate walls 26 extending through the support leg 4 or 5 and in FIG. 1, 2 and 4 are bare and can be seen at the top and / or bottom of the pallet. The vertical throughput between the upper and lower sides of the pallet is also particularly evident in FIG. 11c. As can further be seen by comparing, on the one hand, FIG. 1 and 2 and on the other hand FIG. 4, the number of intermediate walls extending parallel to the outer edges of the pallet may be varied.

Thus, as shown in FIG. 4 shows only one intermediate wall extending along the center line of the outer profile carrier, while in the embodiment shown in FIG. 1 and 2, two such partitions are shown. Something similar applies to the number of intermediate walls 26 perpendicular to the outer edges of the pallet.

With this continuous placement of the support legs, their entire hollow profile and bracing are formed on the outer profile carrier in one piece.

However, according to FIG. 3 and FIG. 5-7 form the front of the support legs from the side facing the insert 18. The stiffening of the support legs is then formed by at least one vertical first partition 27 and / or at least one other horizontal partition 28 according to FIG. 12b. It is then appropriate, as shown in this figure, to allow the covered and possibly the covered or the medians to continue unchanged in the region of the upper wall 20, the lower wall 22 and the intermediate part 24 also in the region of the legs. It is also possible to use only horizontal partitions 28 or only vertical partitions 27 in the support legs as well.

In this case, along its outwardly circumferential circumference 30, it forms the support legs 4 or 5 in connection with the lower wall 22 of the upper deck and the upper wall 20 of the lower deck, or of one towards the insert, callous to box-shaped open profile 37. The insert 18 completes with its peripheral part. 36 this profile 37 so that it will form a profile for all sides closed. Likewise, the peripheral portion 36 closes the open profile formed by the upper wall 20, lower wall 22, and intermediate portion 24, in that deck or in the medians, for a "first" hole profile. Thus, at least one of the two edges extends at least in the upper deck, but possibly also in the lower deck or in the middle a horizontal "first" hole profile. In addition, in each of the support legs 4 or 5, a hollow profile extends, which in its stiffening function continues in the supporting feet along the closed profile of its circumference. The "first" hole profile 32 is according to FIG. 12b by vertical partitions 34 further divided into individual box-shaped sections 35. Something similar applies to the one shown in FIG. 11a with respect to the outer profile carrier.

The open profile of the outer profile support 16 formed by the upper wall 20, the lower wall 22 and the intermediate part 24 is closed at all the positions shown in FIG. 4-7 are conveniently formed by forming the "first" hole profile by means of a rectilinear vertical rim strip on the insert 18. In the embodiment shown in FIG. 5-7, for the complementary completion of the profile 37 formed by the outer profile carrier 16 for the support legs 4 or 5 of the insert 18, a calot-to-box-shaped completion shell 38 is designed which complements the open profile 37 of the supporting leg 37 and its intermediate walls 27 complementary. and / or 28.

In this way, one cannot simply obtain a closure of the front of the support legs 4 or. 5, but also a larger cross-section for the support legs compared to the cross-section for the outer profile carrier 16.

Both types of design of the support legs 4 and 5 as well as of the "first" hole profiles can be used optionally in connection with the ones in FIG. 4 to 7 show construction options showing only an appropriately selected range.

Within the rim strip 36, the insert is at least in the upper deck 1 and possibly also in a lower deck 9 in the predominant part of its flat area formed by vertical ribs 40 extending parallel to the edges of the plastic pallet and crossing each other at right angles and thus forming a grid structure. with rectangular cells. Other cell sections may also be used. The vertical ribs may also be stiffened, for example as shown in FIG. 8b or 10b at the inside of the covered 1 or lower deck 2 may be provided with horizontal, at a right angle, stiffening flanges 42 extending to one or both sides and forming an L or T shape, respectively. However, a structure which is already quite rigid in itself does not, however, have the same rigidity as a profile which is closed along its circumference. For further stiffening of the insert 18, it is not possible to form yet another hollow profile, a "second" hollow profile, from one side, even using a single-shaped insert, not shown. FIG. However, 4-7 show various preferred options for making such a "second" hole profile in the insert 18 complementary from two or three prefabricated structural elements for the insert. Placing several "other" hole profiles side by side can then be achieved by a corresponding multiplication of the described arrangement.

In all of the FIG. 4-7, spacers 44 are provided, partly at the periphery having the edge strip 36 for complementary closure of the respective "first" hole profile 32 and partly having the vertical ribs 40 forming the grating.

In the simplest construction embodiment shown in FIG. 4, there are two such intermediate parts 44 (see in particular Fig. 8a). As shown in FIG. 8b, the side profile facing the second intermediate part 44 on each of the intermediate parts is substantially shaped in the same way as the side profile facing the insert 18 for the outer profile carrier 16 described above. Again, there is again between an upper wall 20, a lower wall 22 and an outer vertical rib in the grating grate provided an open profile in the direction of the second intermediate piece. Two uniform, such open profiles for the two adjacent interstices form with each other a "second" hole profile, which is closed along its circumference, which extends at a uniform distance from the two "first" hole profiles located along the center line of the pallet. Optionally, the upper and lower walls 20 and 22 of the two open profiles forming the "second" hole profile 46 may also be made differently long or in an extreme case only such an open profile at one intermediate piece 44 and with a rim strip corresponding to to the edge strip 36 close this profile in the same way as the "first" hole profile relative to the outer profile carrier.

The "second" hole profile 46 is shown in FIG. 8a, 8c and in FIG. 9a plotted with dotted lines. The "second" hole profile is like the "first" hole profile by means of vertical partitions 34 divided into box-shaped sections 35.

In the embodiment shown in FIG. 4, two support legs 5 and a central support leg 6 are guided through the "second" hole profile 46. Thus, two complementary parts 48 and 50 on two intermediate parts 44 are assembled into a support foot of the same basic construction as that of the same embodiment of FIG. 4 is described in relation to the outer profile carrier 16. The supporting feet are each further stiffened internally by means of intersecting vertical intermediate walls 26. The along its circumferential fully closed hole profile for the supporting legs 5 located on the outside is further supplemented by the "other" hole profile is also closed at the ends. This is shown in the drawing in FIG. 8a and 8b at 51. Incidentally, the "first" hole profile 32 is also closed at the ends by means of the through-out support legs in the outer profile carrier 16.

In addition, in the insert 18, three "third" hollow profiles 52 are formed. Two of these extend in the two decks 1 and 9 between the supporting legs 4 lying at the corners of the pallet, so that together with the "first" hollow profiles in the outer profile carriers 16 forms a hollow profile frame for the plastic pallet. The third of these hollow profiles extends between the middle support legs 5 of the outer profile carrier 16, so that with the "second" hollow profile 46 it forms a perpendicular to this and to the "first" hollow profiles extending stiffening junctions in the insert. The "third" hole profiles are also divided into box-shaped sub-sections 55 by means of vertical partitions 54. 8a and 8c, that the central support leg has a width exceeding the width of the "third" hole profile.

For the wide recesses 10 in the lower deck, the hollow profiles of the first, second and third type according to FIG. 8c between the central cruciform support and the box profile frame four subframes. All of the hollow profiles are then restricted at their upper side by an upper wall 20 and at their underside by a lower wall 22.

The alternative embodiment of FIG. 5 differs primarily from that of FIG. 4 showed that instead of two intermediate parts there are four intermediate parts 44, two of which are shown in FIG. 5, one of the shapes shown in FIG. 4. This embodiment is also possible when the embodiment shown in FIG. 4 is otherwise unchanged. Conversely, in the case of FIG. 5 also allows the use of through legs as in FIG. 4th

On the other hand, in FIG. 5, as well as those in the "first" hole profile, the support legs of the "second" hole profile may also be designed from the side so that they are closed at the end.

A middle support leg 5 at the outer profile carrier is then composed of this profile carrier and of two adjacent intermediate parts 44, while the central support foot 6 is even composed of four complementary parts of the four intermediate parts 44. The supporting feet 4 and the middle support foot 5 at the rim of the insert 18, each is composed of two complementary building elements. The inner structure of a support foot or support leg at the insert is shown by the support foot 5 of FIG. 9b analogous to FIG. 12b showing the outer profile carrier 16. It is seen that for the internal stiffening of such a support foot at least one vertical partition wall 27 and / or at least one horizontal partition wall 28 can be found.

Especially for one co-pallet, but also for the others in fig. 1 and 2, including a single tire pallet, the further modified embodiment of FIG. 6 on speech. This embodiment differs primarily from that of FIG. 5 showed that between the two pairs of intermediate portions 40, another inner profile carrier 58 is inserted as a special prefabricated building element. This construction is shown in detail in FIG. 13a and 13b. It has in each deck an upper wall 20 and a lower wall 22 which, in contrast to the outer profile supports 16, are connected to each other by means of a centrally located intermediate part 24 and which are divided by means of vertical partitions 26 into a number towards the adjacent middle portion 40 open profiles. These are also supplemented by means of corresponding, though somewhat shorter sized, open hole profiles at the rim of the intermediate portions 44 to form the "second" hole profile 46, as has already been described in connection with FIG. 5th

Between the upper and lower decks, 1 and 9, respectively, extend again as integral parts formed and complementary complementary circumferential regions 60 of the support legs 5 and 6, respectively, which are again internally stiffened by at least one vertical wall of walls 27 and / or at least one horizontal partition 28.

By means of the intermediate wall 24, two "other" hollow profiles are formed in relation to the adjacent profiles 65 on both sides of the inner profile carrier 58 as two pairs.

As can be seen in particular from FIG. 9c, which serves to clarify that of FIG. 3, the members 12, like the support legs 5 and 6, may be composed into a closed profile of complementary parts. This is also seen in the FIG. 9b. The only difference in relation to the formation of the support legs is that the complementary parts extend in the region of the rods 12 over the entire length of the pallet. The members 12 may also, in no more detailed manner, like the supporting legs, be stiffened by means of vertical and / or horizontal partitions, as shown by the vertical partitions 27 in FIG. 9b.

While the "third" hole profiles 52 at the rim of the insert 18 are all formed in a single spacer 44 by side cores, the third hole profile 52a formed between two spacers 44 disposed along an outer profile carrier is analogous to the "second" hole profile. 46 in FIG. 4 is composed of two complementary hole profiles, which according to FIG. 9b are each formed by an upper wall 20, a lower wall 22 and an intermediate part 24. This construction is used not only for co-pallets, but is always convenient when, along an outer profile carrier 16, as shown in FIG. 4, a single spacer 44 is used but several adjacent to each other, as shown in FIG. 5 or 6. FIG. 7 shows a mixture of the 4, 5 and 6.

Here, the support legs 4 and 5 formed on the outer profile supports 16 are closed at the end as in FIG. 5. With regard to the detailed construction, reference may be made to that in connection with FIG. 5 given description.

As in FIG. 4 is shown in FIG. 7 along the outer profile carrier only one intermediate piece 40. On the other hand, analogously to FIG. 6, an inner profile carrier 58 is arranged between the two spacers 44, complementarily forming the "second" hole profile 46 according to FIG. 11a and 11c of complementary open profiles between an upper wall 20, a lower wall 22, and an intermediate part 24 (Fig. Fire) together with those on both sides

Claims (18)

1. Plastic pallet with a load-bearing upper tire, support legs which define intersection openings for forklift arms - and optionally a lower tire or joint - with at least one tire and possibly also the outer profile bearers whose inward sides are connected by means of an insert, and which each having a top and a bottom wall connected to it by means of an intermediate part, which walls together form an outwardly closed and inwardly open profile which is supplemented by means of the insert to a "first" hollow profile closed along its periphery, from which supporting legs, characterized in that at least one "other" hollow profile (46), which is arranged in at least one tire (1, 9), is arranged in the insert (18) - optionally also in a center co (12). Plastic pallet according to claim 1, characterized in that the insert (18) has at least one pair of adjacent interconnecting pieces (44), at least one of which forms an outwardly closed and open profile towards the other intermediate piece. supplemented by the second intermediate to the "second" hole profile (46) .t Plastic pallet according to claim 1 or 2, characterized in that the insert (18) has at least one inner profile carrier (58) extending between the outer profile carriers (16), which at least in one tire (1, 9) and optionally also in a middle member (12) has an upper (20) and a lower wall (22) connected thereto by an intermediate member (24), which forms a laterally open profile with each other and that on both sides of the inner profile carrier are spacers (44) which complement the open profile of the inner profile carrier to the "second" hole profile (46). Plastic pallet according to claim 3, characterized in that the inner profile carrier (58) forms on both sides of its intermediate part (24) with the upper (20) and the lower wall (22) a laterally open profile. Plastic pallet according to any one of claims 2-4, characterized in that the "first" (32) and / or "second" (46) hollow profile is also closed at the end. Plastic pallet according to any one of claims 1-5, characterized by at least one support leg (5, 6) extending from the "second" hole profile (46) for the insert (18). Plastic pallet according to any one of claims 3-6, characterized in that the support legs (5, 6) of the insert (18) are integrally connected to the building element (s) (44, 58) forming the "second" hollow profile (46). Plastic pallet according to claim 6, characterized in that the support legs (5, 6) of the insert (18) form a hollow profile which is closed along its circumference and is arranged so as to pass vertically through the "second" hollow profile (46). Plastic pallet according to claim 6, characterized in that the supporting legs (5, 6) of the insert (18) form a hollow profile closed along its periphery, wherein complementary connected peripheral areas are formed into one piece with complementary parts of the "other" hollow profile (46). . Plastic pallet according to claim 9, characterized in that the support legs (5, 6) of the insert (18) are also closed at the end. Plastic pallet according to any one of claims 1-10, characterized in that the part of the tire (1, 9) formed by the intermediate pieces (44) has wax cake or cross-grid-like vertical parts (40). Plastic pallet according to any one of claims 1-6, characterized by at least one "third" hollow profile (52) closed through its periphery extending through the insert (18) across the "second" hollow profile or the "other" "hole profiles (46). Plastic pallet according to claim 12, characterized in that the "third" hole profile (52) of the outer profile carriers (16) is closed at the ends. Plastic pallet according to claim 12 or 13, characterized in that a "third" hollow profile (52) - at both the edges of the plastic pallet together with the "first" hollow profiles (32) forms a hollow profile frame. Plastic pallet according to any one of claims 12-14, characterized in that a "third" hollow profile (52) or several adjacent "third" hollow profiles connects the middle regions of the two outer profile carriers (16) with each other. Plastic pallet according to claim 14 or 15 and designed as a double deck pallet, characterized in that the "first" and "third" hollow profiles (32, 52), which are arranged in the lower deck (9), have at least one "second" hollow profile (46) and at least one additional "third" hole profile (52a) connecting the middle regions of the two outer profile supports (16) enclose four subframes, each of which has an additional recess (10) for accommodating the wheels of the a forklift. Plastic pallet according to any of claims 2-16, characterized in that the spacers (44) and / or the inner profile carriers (58) are each integrally formed in their entire height. Plastic pallet according to any one of claims 1-17, characterized in that the outer profile carriers (16) are longitudinally adjacent to several adjacent spacers (44).