DK144211B - TRANSPORT PALLS WITH HOLE UP OPEN FEED - Google Patents

Description

\\ i (19) DENMARK V23

0 (12) PUBLICATION MANUAL od 144211 B

DIRECTORATE OF THE PATENT AND TRADEMARKET SYSTEM

(21) Application No. 6465/70 (51) | ηίχ; ΐ.3 B 65 D 19/24 (22) Filing date 21 Dec. 1970 (24) Race day 21 Dec. 1970 (41) Aim. available Mar 20 1972 (44) Posted Jan 18 1982 (86) International application no.

(86) International filing day - (85) Continuation day - (62) Application number -

(30) Priority 4. s ep. 197Ο, 2043832, DE

(71) Applicant FURNIER- UND SPERRHOLZWERK J.F.WERZ JR. K.G., 714l Oberstenfeld call Stuttgart, DE.

(72) Inventor Edmund Eugen Munk, DE: Herbert Georg Haas, DE: Her = man These days you are, DE.

(74) Associate Engineer Giersing & Stellinger.

(54) Transport pallet with hollow upwards open feet.

The invention relates to a transport pallet formed in one piece of press material and with hollow open feet.

Such transport pallets are already known. By proper design, they have the advantage that they can be stacked in an empty space in an extremely small space, since the feet of each pallet can, by stacking the pallets, engage from above into the cavity of the feet in the lower pallet. However, these pallets have the disadvantage that, due to the low support surface of the individual feet, they often cannot be placed over one another in a loaded condition during transport because, e.g. by resilient or slightly damaging loading goods, e.g. in containers of flexible material and filled with powdered fabrics or in packings of cardboard, damage to the packaging material or loading material may occur due to the weight of the loading material acting on the lower pallet. supporting surface unit. In addition, pallets with individual projecting feet are unsuitable for the presently used transportation of the pallets in storage or loading rooms by means of roller conveyors consisting of single, adjacent, permanently stored rolls.

Pallets are also known in which the feet are interconnected by means of racks or threads, so that the support surface is thereby increased and thus the load acting on another under the pallet under pressure is more favorably distributed. Apart from improving the pressure conditions, such pallets also have the advantage that they can be used on runways. Of course, the meds must be so arranged that the fork of a forklift truck can be inserted under the pallet support surface from all sides. However, a major disadvantage of the latter pallets is that they do not allow a space-saving stacking in empty transport. In addition, mounting such pallets consisting of individual parts is complicated and expensive.

The object of the invention is to provide a pallet, which consists of a single continuous piece, and not only enables a space-saving stacking in empty transport, but also ensures a favorable pressure distribution on the underlying loading goods by stacking several loaded pallets over each other. At the same time, such a pallet must be suitable for transport on conveyor tracks, where the pallets are carried on rotating rollers or rollers.

In order to achieve this, according to the invention, a transport pallet of the type indicated initially is designed such that the bottom portions of the grouped feet in rectilinear rows are interconnected by rails extending parallel to the pallet support surface, which is provided above the rails in parallel. progressive recesses, and that the feet are each open on one or more sides of the medians. is connected to the feet, wherein the voids of the feet and the recesses above the rods are designed and dimensioned so that a further pallet can be stacked on top of one another by the engagement of the feet and insertion of the racks through the recesses in the support surface. Several such pallets can thus be stacked tightly together without losing the advantage that the pallets can be transported on rollers or rollers consisting of conveying paths in the direction of the rails or in a direction which is inclined in relation to the rails.

To obtain the required strength, the feet, especially the feet at corner corners, must have a relatively large horizontal cross section, ie. the opening upwardly passing through the support plate is relatively large. Now if the upper openings between the feet above the rods parallel to these extending slots had the same width as the upper openings of the feet, an undesirable loss of supporting surface would result. Since, on the other hand, it is necessary to maintain a sufficient distance between the feet in order for the fork of a forklift to be inserted under the support plate from any side, the feet must be positioned relatively near the edges of the support surface, so that at one to the upper opening the slit width corresponding to the feet, the portion of the support extending along the edge of the pallet will become too weak for the load it may be able to absorb.

These difficulties are countered by a further design of the pallet according to the invention in that the upward opening of the feet, in particular of the corner feet, is wider than the recesses extending in the supporting surface above the meds and that the edge of the lateral surfaces of the feet adjacent to the meds and the recesses, are inclined in relation to the side edges of the pallet as well as to its supporting surface. Thus, a maximum support surface is obtained in which the width of the recesses is not greater than necessary for the sake of the medians.

Since the pallet according to the invention e.g. may consist of a resin or of pressed glue-coated wood fibers, both the support surface and the meds must be correspondingly reinforced to increase the strength of the pallet. This invention adds to the invention in that the pallet support surface and the meds are provided with ribs which form a wave profile. In this way, a deterioration of the stacking ability is also avoided, since the ribs are designed to fit into the stacking.

For many purposes, the pallets of the invention have some disadvantage insofar as the support surface is interrupted by the upwardly opening openings of the feet and of the projections in a manner which proves unfavorable to the stacking of certain goods. Since the pallet according to the invention is preferably intended as a disposable pallet, this difficulty can be alleviated according to a particular embodiment of the invention in that plate or strip-shaped projections extending parallel to the outer edges of the pallet extend in plane with the upper surface of the pallet. and the length of which corresponds to the length of the recesses extending above the middle plus the length of the upper opening of the feet at the ends of the recess, and the width of which corresponds to the greatest width of the upper opening of the feet, which projections are connected to the pallet or with each other over a strip of weakened cross section. These tear-off removable tire strips in no way impair the pallet's stacking ability and, on the other hand, can be used to cover the recesses in such a way that the pallet's carrier surface is formed as a closed or nearly closed surface when the pallet is used.

The invention is further explained in the following with reference to k 144211 to the drawing, in which fig. 1 is a perspective view of a pallet according to the invention; FIG. 2 is a top view of the pallet; FIG. 3 is a vertical section of the pallet along the line III-III in FIG. 2, FIG. 4 shows a horizontal section of a corner foot on the pallet Icings line IV-IV in fig. 3 * FIG. 5 shows the placement and application of the detachable cover strips, seen in vertical section through the feet along a narrow edge; FIG. 5a shows the same vertical sectional cover strips parallel to the section of FIG. 5 through the support surface and the medes; and FIG. 6 cover strips similar to those in FIG. 5 shown on a pallet with a sluggishly drawn edge.

Pig. Figure 1 shows a complete schematic representation of the pallet, in which all the details disturbing for the sake of clarity, in particular those for stabilizing the support surface and the co-serving hollow holes, are omitted, in order that the basic ideas of the invention will appear more clearly. In the example described below, the pallet is arbitrarily assumed to be made by a suitable pressing method of lignocellulosic particles (chips or fibers) mixed with a binder. However, this does not preclude the use of another suitable material for the preparation of the pallet or that the pallet is made by another method. Instead of a mixture of glue-coated lignocellulosic particles, the pallet may also be pressed or injection molded by a suitable resin, e.g. of a polymerizing, thermoplastic or duroplastic, optionally reinforced resin, or consisting of a structural foam material on a duromer or eiastomer basis.

In principle, the pallet consists of a support surface 1. At each corner of this rectangular surface 1 is placed a foot 2. At the narrow sides of the rectangular support surface 1 there is an additional foot 3 between the two feet 2, while at the long sides between the feet 2 a foot 4. In addition, a foot 5 is placed on the center of the support surface 1. The feet are three and three, respectively, blinded to the floor height by means of racks 6, which extend parallel to the pallet's longitudinal center axis, e.g. feet 2-4-2 along each of the two longitudinal edges or feet 3-5-3 along the center axis. The feet are trough-shaped and open upwardly through the support surface and also to the side or sides where the corresponding mede 6 is connected to the foot in question. Of course, the meds and slots may also be disposed along the transverse edges.

Above the rods 6, slot-shaped recesses 7 and 8. are formed in the support surface. The median extending along the center axis and the recess above it are arranged so that they extend symmetrically with respect to the longitudinal center axis of the pallet. Furthermore, the recess 8 is only slightly wider than the medians, while the upper openings of the feet 3 and 5 due to the shaping of the feet corresponding to the strength requirements are wider than the recess.

Also the feet 2 are designed so that their horizontal cross-section is constantly increasing from the bottom upwards, so that their opening at the top is also wider than the recess. By contrast, the medians 6 and the recesses 7 along the two lateral edges are set so much in the direction of the longitudinal axis of symmetry of the pallet that the inner edge 7 'of the recesses 7 lies in continuation of the corresponding edge of the upward opening of the feet 2. The outer edge 7' 'of the recesses offset relative to the corresponding edge of the upper opening of the feet 2 towards the longitudinal axis of symmetry of the pallet, so that a relatively wide edge surface 9 is formed between the longitudinal edges of the pallet and the edges 7 '' of the recesses 71

The recesses 7 are only slightly wider than the racks 6 and are so placed over them that the center axes of the corresponding recesses 7 and racks 6 lie vertically above each other.

At the sides 1'1 of the pallet extending perpendicularly to the direction of the pallet, there are provided facilities for inserting the pallet into a pallet rack. These systems 10 are formed by a kind of deflection in the walls facing the respective side of the feet 2 and 3. Their downward extension is limited to only a fraction of the total height of the feet. With the aid of these systems 10, the pallet 1 of the pallet is stiffened so much that the pallet can be inserted into a rack without risk even in a loaded state.

Furthermore, it has been found convenient to position the corner feet 2 of the recess 7 adjacent to the outer edge 11 extending obliquely both with respect to the longitudinal axis and with respect to the transverse axis and with respect to the plane of the support surface 1. This results in both certain production benefits and increased security in terms of strength.

For the sake of strength, the pallet's horizontal surfaces are provided, ie. both the supporting surface damaging surfaces 1 and the horizontally extending webs 6, with appropriately arranged ribs. These ribs are advantageously designed as hollow ribs.

In FIG. 2 is a top view of a pallet of the pallet. The ribs 21 formed as recesses in the support surface have e.g. FIG. 3 in section. Furthermore, as can be seen from FIG. 2, the lateral mediators and the central median 6 'are also provided with corresponding ribs 22. While the central portion of the pallet is provided with longitudinal ribs 21, cross-ribs 23 are provided at its edges, whereby the required strength in the direction of the narrow sides 6 U4211 is obtained. These ribs are also partly directed downwards (23 ') along the side walls of the feet 2 and 3. For reasons of strength it is not necessary to place longitudinally extending ribs at the underside of the feet or at the mouth points of the feet 6, e.g. feet 4, these ribs are not, in principle, positioned transversely of the rods, but extend obliquely thereto, as shown, for example, by the ribs 24 located at the mouth of the ridge 6 in the foot 4. This is necessary to allow transport of the pallet in the longitudinal direction also by means of runways.

X fig. 4 is a horizontal section of one of the corner feet 4. The section extends approximately half the height of the foot. It shows how the middle 6, with its ribs 22, enters the foot 4. In addition, it shows the downwardly extending ribs 23 'downwards from the narrow side of the foot and downwardly along the wall of the foot and the inclined wall part 11. The corner which the wall part 11 forms with The support surface of the foot 4 and the median 6 running in at this point are also reinforced by means of an inclined rib 25 · X. In a further embodiment of the invention further strips are arranged along the longitudinal edges of the pallet which are thus connected to the edge of the pawl by a notch. pallet carrier surface that they can easily be broken off. This embodiment is shown in FIG. 5 * He with dotted lines shown as strips 31s32,33 are arranged along the edge of the pallet, where there is a notch 34, along which the strips can be broken loose. Between the two interconnected strips 31 and 32 there is also a notch 34 '. As the pallet is preferably to be used as a disposable pallet, it can in this way be stacked without further ado until it is used as the feet are brought into each other and the feet are pushed into the corresponding recesses. The fact that the pallet is made wider by the extra strips 31,32,33 »is of no significance here. If the pallet is then to be used, the strips 31, 32 and 33 are broken off along the notches 34,34 'and laid over the recesses and feet, as shown in FIG. 5 with the black-filled profiles 3 ^, 321 and 33 '· Conveniently, in this case, the pallet's supporting surface is formed so that its ribs are somewhat lower along the edges of the feet and of the recesses 7, so that the strips 31, 32, 33 after application do not form some protrusion in the support surface, but with their surface fitted into the surface of the support surface. This particular configuration of the rim of the feet and of the recesses 7 is shown in FIG. 5 for example at 36 · While FIG. 5 shows a section through the feet 4 and 5 of the pallet along the central cross axis, is shown in FIG. 5a shows a sectional view between the feet, from which the placement of the tire strips above the rods 6 is shown. It will be seen from FIG. 5a, it is readily apparent that the tire strips, e.g. 33 '' due to the greater width of the feet, the width of the feet must be wider than would be necessary to cover the slot, so that this greater width of the strips must be taken into account in the special design of the support along the edge, such as shown at 37 · Instead of stiffening the feet with the help of hollow ribs in a manner similar to the supporting surfaces and the medians, it is also possible to place reinforcement bumps in appropriate places. Such beads may in particular be arranged at the side openings of the feet.

As a special embodiment of a pallet of the type described above, it is also possible to pull up the edges of the pallet so that the support surface has a trough or bowl-shaped configuration. This has the advantage of further increasing the bending strength of the pallet, and in particular that the relatively narrow surfaces between the slots 7 and the parallel leading edge thereof can be made considerably more resilient. In addition, such pallets are particularly suitable for special applications. If such pallets are also to be provided with cover strips for the foot openings and recesses, these strips may be affixed to the drawn edges without particular difficulty, as shown in FIG. 6. In this figure, the drawn edges are denoted by 4l. Incidentally, the various reference numerals correspond to those in FIG. 5 used.