METHOD OF FORMING A LOAD FOR TRANSPORTATION

Information

  • Patent Application
  • 20070253791
  • Publication Number
    20070253791
  • Date Filed
    April 27, 2007
    17 years ago
  • Date Published
    November 01, 2007
    16 years ago
Abstract
A method of forming a load for transportation comprising the steps of: i) placing a base member on a flat surface, wherein the base member is wider than the intended width of the load; ii) forming a base layer of the load on the base member such that a side flap of the base member extends beyond each side of the base layer, wherein the base layer defines at least two channels for receiving forks of a forklift truck or other lifting device; iii) building a partial load, less than the intended maximum height, on top of the base layer iv) folding the side flaps of the base member around the partial load; v) building the remainder of the load on top of the folded base member; and vi) securing the completed load for transportation.
Description

DESCRIPTION OF THE DRAWINGS

For a better understanding of the present invention, reference will now be made, by way of example, to the accompanying drawings, in which:



FIG. 1 shows a schematic representation of a stage in the formation of a load;



FIG. 2 shows a schematic representation of a further stage in the formation of a load;



FIG. 3 shows a schematic representation of a further stage in the formation of load;



FIG. 4 shows a schematic representation of a completed load;



FIG. 5 shows a schematic perspective representation of the partial load of FIG. 3;



FIG. 6 shows a schematic representation of an alternative configuration of a completed load;



FIG. 7 shows a schematic representation of a further alternative configuration of a completed load; and



FIG. 8 shows a schematic representation of an alternative configuration of a completed load.





DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring firstly to FIG. 1, this shows a schematic representation of an early stage in the formation of a load 2.


The first stage in the formation of the load 2 involves placing two elongate template members 4a,4b on a flat surface. The template members 4a,4b have a square cross section and are formed rigid, resilient material. The template members 4a,4b may conveniently be formed from wood, plastic or metal and they are longer than the intended width of the load 2. This ensures that the load 2 can be built on top of the template members 4a,4b and they can then be easily removed.


The template members 4a,4b are arranged parallel to each other and are spaced apart by a distance which corresponds to the spacing of the forks on the fork lift truck which will be used to move the load 2 and they are larger in size than the forks. It is appreciated that fork lift forks are generally adjustable, but each load 2 will have an optimum fork spacing, depending on various factors such as the size and weight of the load 2. The template members 4a,4b define channels which will receive the forks of a fork lift truck in order to facilitate movement of the load 2. When the load 2 is completed and the template members 4a,4b are removed two channels will remain. These channels may be accessed from the front or the rear of the load, thus mimicking the standard “two way” pallet.


As an alternative, a more complex arrangement of template members may be provided to offer improved operational flexibility. The template is arranged such that four channels are defined in the load, thus permitting access to the forks of a fork lift truck from all four sides of the load, in the manner of a “four way” pallet. In one embodiment the template is a multi-piece construction which comprises two pairs of channel defining members. The channel defining members of each pair are parallel to each other and the two pairs are perpendicular to one another. One pair of channel defining members is provided with gaps to enable the other pair of channel defining members to slide through. The gaps are defined by bridge portions. Alternatively the four channels may be created using four standard template members, in which a first layer of a load is built up around a first pair of template members and a second pair of template members are placed on top perpendicular to the first pair.


Referring again to the embodiment of FIG. 1, the next stage involves a base member 6 being laid on top of the template members 4a,4b. The base member 6 is rectangular in shape and it is orientated such that its long sides are perpendicular to the template members 4a,4b. The length of its short sides corresponds generally to the depth of the load 2 and is shorter than the length of the template members 4a,4b. The long sides are significantly longer than the intended width of the load 2 and the reason for this will become clear in relation to FIGS. 3-5.


The base member 6 is made of a resilient material as it is partly responsible for the overall strength of the load. Typically, the base member may be formed from a resilient plastics material, for example, selected from one or more of the following: polyolefins, polyamides, polystyrenes and/or polyesters. The plastics materials may suitably be constructed in a multi-ply manner as is well known in the art. These materials are particularly preferred as they are strong, lightweight and easily recyclable. The plastics material may contain one or more additives depending on the nature of the goods in the load, for example, the load contacting surface of the base member may be provided with a tacky surface permitting the base member to adhere to the load during use.


The base member 6 may be in the form of a sheet of material. In order to reduce the overall weight of the base member 6 the sheet may be provided with a plurality of perforations. The perforations may be formed during manufacture of the base member 6 and should be arranged such that the integrity and strength of the base member 6 is maintained. It is appreciated that the strength of the base member 6 may be reduced by the creation of perforations and it is important that a balance is struck between reducing weight and maintaining strength.


As an alternative to perforations the sheet may be provided with a plurality of openings which may be die cut during manufacture of the sheet. The openings may be arranged in a regular array or they may be randomly spaced across the sheet. In the embodiment described above in which the template member is arranged to define four channels, the openings on the sheet must be arranged to accommodate the forks of a fork lift truck.


A further two embodiments of the base member 6 are envisaged within the scope of the invention. Firstly, the base member 6 may be in the form of a net. Secondly, the base member 6 may be in the form of a plurality of strap members. The strap members may be attached to each other to prevent separation, or they may be completely separate entities. Although the method of forming the load is described with relation to a base member 6 in the form of a sheet it is equally applicable to these alternative forms of base member 6.


Once the base member 6 is in place a base layer 2a of the load 2 is formed. The load 2 may comprise a plurality of individual items, which may be the same or different shapes. The present system enables the formation of a variety of loads 2 of differing sizes as there is no requirement on building the load 2 to fit a pallet. The size of the load 2 will be determined by other factors, such as the weight of the goods and the space available in the container or other transportation means. The only restriction on the size of the load 2 from the point of view of the present invention is that a side flap 8 of the base member 6 must extend beyond each side of the load 2. The base layer 2a of the load is built around and to the same height as the template members 4a,4b.


The next stage is to build a further portion 2b of the load 2 on top of the base layer 2a, as shown in FIG. 2. The further portion 2b is built in the conventional manner for building a load for example on a standard pallet. The further portion 2b, also known as a partial load, is built to a height less than the intended maximum of the load 2. The maximum height of the partial load 2b is also determined by the length of the side flaps 8 which extend beyond the base member 6 on either side of the load 2. This will be described in more detail in relation to FIG. 3, but the height of the partial load must not exceed the length of the side flaps 8.


Turning now to FIG. 3, this shows the next stage in the formation of the load 2. A number of variations are possible at this stage and some of these are illustrated in FIGS. 6-8. A first one of the side flaps 8a is folded around the partial load 2b. As described above, the load contacting surface of the base member 6 may be provided with a tacky surface. This enables the side flap 8a to adhere to the partial load 2b and aids formation of the load 2, as well as also giving strength to the load 2. The tacky coating is relatively weak and does not bond to the load 2 in a permanent manner. It should be possible to pull apart load 2 and base member 6 during unloading. Next, the second side flap 8b is folded around the partial load 2b. The side flaps 8a,8b overlap and in the region of the overlap they are provided with a stronger adhesive to secure them together. Again, this adds strength to the load 2 which is very important in the absence of a pallet.


A perspective view of the load 2 of FIG. 3 is shown in FIG. 5. It can be seen that the load 2 has been formed as a “four way” load, which is configured to receive the forks of a fork lift truck from all four sides. Once the base layer 2a has been formed (as shown in FIG. 1) a further pair of template members 4c, 4d are placed on top of the base layer 2a such that they are perpendicular to the first mentioned pair of template members 4a, 4b. The partial load 2b is then built up around the template members 4c, 4d to its intended height. The remainder of the procedure is the same as described in relation to FIGS. 1-4. The side flaps 8a, 8b of the base member 6 are provided with openings 9, which are arranged to align with the further template members 8c, 8d. Consequently, when the side flaps 8a, 8b are folded around the partial load 2b the openings 9 and the template members 4c, 4d are in the same position.


As mentioned, a variety of different configurations are possible at this stage. In the embodiment illustrated in FIG. 3, both side flaps 8a,8b are folded around the partial load 2b at the same height. However, it is envisaged that a first side flap 8a could first be folded around the partial load 2b then a further portion 2d of the load 2 could be built on top of the first side flap 8a, around which the second side flap 8b could be folded. This configuration is illustrated in FIG. 6.


As a further alternative, the side flaps 8a,8b may be provided such that when they are folded around the partial load 2b they extend across its full width. In this case it is envisaged that a further portion 2e of the load 2 could be built on top of each of the side flaps 8a,8b and then the side flaps 8a,8b folded back around this further portion 2e. Two possible versions of this configuration are illustrated in FIGS. 7 and 8.


It will be appreciated that a wide variety of possible folding configurations are possible within the scope of the present invention. The illustrated embodiments are provided by way of example only and the only limitations on the present invention are provided in the claims.


Once the side flaps 8a,8b have been folded around the partial load 2b the remaining portion 2c of the load is built on top of the folded side flaps 8a,8b in the traditional manner, as shown in FIG. 4. The completed load is then secured by any suitable means, such as shrink-wrapping or tying, to prepare the load 2 for transportation. As a final step, the template members 4a,4b are removed from the load 2. A portion of the template members 4a,4b is left protruding from the load to facilitate removal.


Although several embodiments of the invention are described in detail above, one having ordinary skill in the art will recognize that various modifications and equivalent substitutions are also within the scope of the invention, as defined in the following claims and their equivalents.

Claims
  • 1. A method of forming a load for transportation comprising the steps of: i) placing a base member on a flat surface, wherein the base member is wider than the intended width of the load;ii) forming a base layer of the load on the base member such that a side flap of the base member extends beyond each side of the base layer, wherein the base layer defines at least two channels for receiving forks of a forklift truck or other lifting device;iii) building a partial load, less than the intended maximum height, on top of the base layer;iv) folding the side flaps of the base member around the partial load;v) building the remainder of the load on top of the folded base member; andvi) securing the completed load for transportation.
  • 2. A method according to claim 1, wherein step iv) comprises the further steps of: a) folding a first one of the side flaps around the partial load;b) building a further portion of the load, less then the intended maximum, on top of the first side flap; andc) folding a second one of the side flaps around the further portion of the load.
  • 3. A method according to claim 1, wherein the step of folding the side flaps around the partial load comprises the steps of: i) folding the side flap across the width of the partial load;ii) building a further layer of the partial load; andiii) folding the side flap back across the partial load.
  • 4. A method according to claim 2, wherein an end of at least one of the side flaps is provided with an adhesive.
  • 5. A method according to claim 1, wherein a template is used to define the channels.
  • 6. A method according to claim 5, wherein the template defines a further at least two channels perpendicular to the first mentioned channels.
  • 7. A method according to claim 1, wherein the base member comprises a resilient plastics material.
  • 8. A method according to claim 7, wherein the resilient plastics material comprises one or more plastics selected from the group consisting of polyolefins, polyamides, polystyrenes and/or polyesters.
  • 9. A method according to claim 7, wherein the plastics material comprises CaCO3.
  • 10. A method according to claim 1, wherein the base member is a sheet.
  • 11. A method according to claim 10, wherein the sheet comprises a plurality of perforations.
  • 12. A method according to claim 10, wherein the sheet comprises a plurality of openings.
  • 13. A method according to claim 12, where the openings are die cut.
  • 14. A method according to claim 12, as dependent on claim 6, wherein at least some of the openings are aligned with the further channels.
  • 15. A method according to claim 1, wherein the base member is a net.
  • 16. A method according to claim 1, wherein the base member comprises a plurality of strap members.
  • 17. A method according to claim 16, wherein the strap members comprise a plurality of perforations.
  • 18. A method according claim 1, wherein a load contacting surface of the base member has a tacky surface.
  • 19. A method according to claim 18, wherein the load contacting surface comprises a glued spray.
  • 20. A method according to claim 18, wherein the load contacting surface comprises a hot melt adhesive coating.
  • 21. A method according to claim 18, wherein the load contacting surface comprises an extruded tackifier.
  • 22. A method according to claim 1, wherein the completed load is secured with stretch-wrapped film.
  • 23. A method according to claim 1, wherein the completed load is secured with strapping.
  • 24. A load secured by the method according to claim 1.
  • 25. A load comprising a plurality of items, wherein the load comprises a base member upon which the items are stacked and a base layer of the load is stacked on the base member and defines at least two channels for receiving forks of a fork lift truck.
  • 26. A load according to claim 25, wherein the base member has side flaps which extend beyond each side of the load and are folded around a portion of the load.
  • 27. A load according to claim 25, wherein the base layer of the load defines four channels.
  • 28. A load according to claim 27, wherein the load comprises two pairs of channels which are arranged perpendicular to each other.
Priority Claims (1)
Number Date Country Kind
0608432.1 Apr 2006 GB national