DE60315175T2 - Reinforcement for the feet of a pallet - Google Patents

Abstract

The reinforcement is conceived for pallets in which, both its loading platform (3) and its lower skids (2) are made of cardboard. The reinforcement consists of a grooved profile (1), cross-sectionally "U"-shaped, the middle branch of which presents an amplitude that complies with the width of the skids (2), the length of which coincides with that of the actual pallet and the side branches of which present a considerable less height that that of the skids (2). The reinforcement, of laminated cardboard, extends along the whole length of the pallet body, both, when its skids also do so, or when the skids are discontinuous. <IMAGE>

Description

SCOPE OF THE INVENTION

The The present invention relates to a reinforcement which especially for Pallets built in skids was designed with the aim of loading the dock in an appropriate manner in relation to the support surface To keep a distance, so the introduction of a fork of a transpallet or lift truck or a forklift to allow.

The Invention is especially for Cardboard pallets developed for the purpose of supporting their substructures stiffen and so strengthen their flexural strength.

BACKGROUND OF THE INVENTION

Of the The use of cardboard pallets is becoming more and more generalized both from economic establish as well as for reasons of environmental protection, taking cardboard under recycled or not made of recycled fibers, but always recyclable material is understood.

The Cardboard pallets offer advantages over the original ones Wooden pallets, mainly in terms of of weight and recyclability, and more conditions are playing their increasing use a role, such as the requirements imposed by different countries, the one fumigation of each wooden one Pallet against insect pests prior to their use, as in Australia for example and in the United States.

As one knows, The most critical elements of any cardboard palette are those below Surface or load area sub-structures located on the pallet, which, as previously indicated, have the purpose of access by a transpallet or a forklift from two or four sides of the pallet.

For the receipt This substructure is one of the most widely used solutions Production of cylinders made of cardboard, based on the spiral wrapping this material, with the cylinder in one direction in one prismatic rectangular shell be accommodated, and either continuously or not continuously are, depending on whether between them an access for the transpallet or the forklift shall be.

On definitely brings this solution, what size compression strength offers, a significant limitation in terms of bending strength, and this problem is with those pallet bases stronger loads that allow access from their four sides, and this especially if the pallet is on a shelf with only two support ends is placed.

Also, the font points EP 0878405 a pallet of pulp that has continuous breaks to form web-like hollow feet. The hollow feet can additionally be reinforced externally by a U-shaped profile made of the same pulp, which improves the rigidity and the wear resistance.

DESCRIPTION OF THE INVENTION

The Reinforcement provided by the invention applicable to substructures like those that have been shown before, or any other Texture type, such as tubular cylinder or other, improves the pallet bending strength very considerably, while the Pallet their advantages in terms of ease and on the recyclability unchanged maintains.

Around to accomplish this, and more specifically, the said reinforcement consists of a U-shaped configuration profile from laminated solid board, in which multiple cardboard layers together be connected by means of adhesive bonding or by means of heat of fusion thanks the plastic polymer layer, equipped with each cardboard layer to be like.

The Thickness of said profile should be in the range of 2 and 10 mm move, depending on what characteristics the palette with regard to on its use, its width should be the width of the pallet base match, for which it is intended, and its height should be in the range of 10 and 20 mm, so that this diminished Height that Penetration of transpallet or forklift arms, on the side of the substructure, if said substructure is not so far is ongoing.

The reinforcement is preferably attached to the substructure by means of adhesive, both by its central branch as well as by its lateral or vertical branches, additionally Pressure on the substructure and reinforcement exercising, both in the vertical direction and in the transverse direction.

DESCRIPTION OF THE DRAWINGS

In addition to the description in this specification, and for the purpose of providing a better understanding of the characteristics of the invention, given by way of exemplification thereof, an assembly of drawings has been incorporated which form a part of the said specification and in which: explanatory and non-restrictive Character that was reproduced:

image 1 shows, from a perspective view, the reinforcement for pallet substructures, shown according to FIG proviso the subject of the present invention.

image Figure 2 shows a schematic, partial and cross-sectional detail the laminar structure of the reinforcement from the previous picture.

image 3 shows the gain from the previous pictures, form-fitting coupled with pallet substructures, namely a pallet, the exclusive accessibility through two of their sides.

image 4 shows a representation similar the one in the previous picture, but with reference to one Pallet with access through its four sides.

PREFERRED EMBODIMENT OF INVENTION

With regard to the above-mentioned images, and more specifically, to FIG. 1, it will be seen that the reinforcement proposed by the invention has a U-shaped cross-sectional profile (FIG. 1 ), whose middle branch of the present reference ( 1 ), has a longitudinal width which corresponds to that of the substructures ( 2 ) of the pallet ( 3 ), for which it is intended, while its side branches ( 4 ) have a height in the range of 10 and 20 mm, that is, considerably less than the height of the substructures ( 2 ) of the pallet ( 3 ), and which, if there is a pallet ( 3 ' ) with discontinuous substructures ( 2 ' ), in which the accessibility is in principle characterized by the four pallet edges or sides, via the profile ( 1 ) the establishment of gaps ( 5 ) between her and the loading ramp ( 3 ' ), said gaps being of sufficient size to allow access by the transpallet or forklift arms.

Said profile ( 1 ), with a wall thickness in the range of 2 and 10 mm, is created from laminated paperboard, as can be seen in more detail in Figure 2, based on the plurality of layers of paperboard ( 6 ), which may be joined by gluing, or otherwise by means of heat fusion, thanks to a polymer layer with which each layer of cardboard ( 6 ) may be equipped.

By means of the laminar structure for the profile ( 1 ), a high mechanical bending tensile strength of the same is achieved, which is transferred to the substructures of the pallet, and consequently to the latter overall, and as a result this is particularly suitable in the case of non-continuous substructures, as shown in Figure 4, where the reinforcement as a connection bridge for the various segments ( 2 ' ) of the substructures at the ground level, a parallel attachment to the existing loading ramp ( 3 ' ), but without negative repercussions on the possibility of access of the forklift or transpallet arms by the existing discontinuous substructures, thanks to the reduced height of the reinforcement, which 5 ) leaves for the passage of said arms.

As will be understood from the foregoing description, the reinforcement proposed by the invention is applicable to pallets ( 3 ) with any type of structure and any configuration of its substructures ( 2 - 2 ' ).

Claims (3)

A reinforcement for pallet substructures, the substructure being made of solid board made from virgin fibers and recycled fibers (both types of fiber being recyclable), the substructure being of any type: either continuous or discontinuous, depending on whether the fork is inserted a forklift or manual lift truck requires two or four pages of access to the pallet; the reinforcement is characterized by a U-shaped profile ( 1 ) made of laminated board, which is attached to each substructure ( 2 ) can be adapted to a continuous or interrupted construction. A reinforcement for pallet bases in accordance with claim no. 1; this is characterized by the height of the vertical walls ( 4 ) of the U-shaped profile ( 1 ), which is between 10 and 20 mm, to allow the introduction of the fork of a forklift or manual lift truck through the corresponding openings between the U-shaped profiles and the upper layer (FIG. 3 ) of the pallet in the event that the construction of the substructures ( 2 ) is not continuous. A reinforcement for pallet bases in accordance with the previous claims; this is characterized by the thickness of the U-shaped profile ( 1 ), which may be between 1 and 10 mm, and through the layers of solid board forming the wall; these are bonded together either by adhesive or by thermal fusion using the polymer layer attached to each solid paperboard layer.