JP2007176534A - Resin-made pallet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin-made pallet with its surface covered by a skin sheet which is capable of stabilizing a load on the pallet. <P>SOLUTION: A plurality of through-holes 17 penetrating the skin sheets 14 and 15 and a foamed resin-made pallet base material 13 are formed in a resin-made pallet 10 with its surface covered with the skin sheets 14 and 15 for reinforcement. End parts of strings and wires stretched over the load on the pallet are fixed by using the through-holes 17. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a resin pallet, and more particularly, to a resin pallet in which a pallet base material is covered with a reinforcing skin sheet and can stably hold a load placed on the pallet.

  Resin pallets are known, and since they are lighter and easier to handle than wooden pallets, foamed resin pallets are widely used among resin pallets. However, the foamed resin pallet has a problem that it is weaker in strength than the wooden pallet and the surface is easily roughened. To solve this problem, the skin sheet is made of a material whose surface is harder than the pallet body. There has been proposed a resin pallet that is covered with (see Patent Document 1).

WO2004 / 094251

  The resin pallet whose surface is covered with a skin sheet has a disadvantage that the loaded luggage is easy to slide on the pallet as compared with the wooden pallet. Therefore, in the said patent document 1, it has proposed forming the edge part protruded upwards around the surface of the board part which mounts a load, or forming several recessed part in the board part surface. However, it is not possible to completely fix the load with only such edges and recesses, and the load placed on the pallet plate moves due to vibration during distribution and inclination of the pallet. There is a risk of falling from the plate.

  The present invention has been made in view of the above circumstances, and a pallet base material having a plate portion on which a load is placed and two or more leg portions formed on the back surface of the plate portion is a reinforcing skin sheet. It is an object of the present invention to provide a resin pallet that can reliably suppress the loaded load from moving on the plate portion or falling from the plate portion.

  A resin pallet according to the present invention is a resin pallet in which a pallet base material having a plate portion for placing a load and two or more legs formed on the back surface of the plate portion is covered with a reinforcing skin sheet. And one or more through holes penetrating the plate portion and the skin sheet are formed. The through hole may be left as it is, or a reinforcing cylinder may be inserted into the through hole.

  In the resin pallet, the end of a fastening material such as a luggage fixing string, wire, or belt can be easily fixed to the pallet side by using the formed through-hole. After placing the load on the pallet plate part, the fastening material fixed to the pallet plate part using one through side hole is passed over the load, and the other end side of the tightening material is also made using the through hole. By fixing to the pallet plate part, the load can be securely fixed to the pallet.

  By forming a plurality of through-holes, the fastening material spanned over the load is guided from one through-hole to the back side of the pallet plate part, pulled out to the front side using the other through-holes, and hung on the load again. It is possible to use such a manner that the handing is repeated and finally fixed to the pallet side, or the ends of the fastening material are fixed with appropriate buckles. Appropriate fasteners such as hooks or bolts and nuts can be attached to the pallet plate using the through holes. By using such a fastener, the work of fixing the load to the pallet plate part can be facilitated.

  The shape of the through hole is arbitrary as long as the above-described fastening material can penetrate, and there is no particular limitation. However, when a string or wire having a substantially circular cross section is used as the fastening material, the cross-sectional shape is circular or elliptical. The shape of the through hole is preferable. When a flat fastening material such as a flat belt is used, a through hole having a rectangular cross section is preferable. You may form the through-hole of both cross-sectional shapes simultaneously in one resin pallet.

  In order to manufacture the resin pallet according to the present invention, a pallet base material in which necessary through holes are formed in advance is formed, and the surface of the pallet base material is coated with a skin sheet by an appropriate method known in the art. May be used to make holes in the skin sheet where the through-holes are located, after forming a pallet base material that does not have through-holes and coating the skin sheet there, The through hole may be formed using a thermal iron or the like.

  The method of covering the pallet base material with the skin sheet is arbitrary, but a conventionally known vacuum is used in which the molded pallet base material is used as a mold, and the heat-softened skin sheet is disposed on the pallet base material. The molding method is effective. You may make it coat | cover with a pressure forming method.

  In the present invention, the resin material forming the pallet substrate is polystyrene, high impact polystyrene, styrene-ethylene copolymer, styrene-modified polyethylene resin, styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer, and the like. Polystyrene resins: polymethacrylate resins such as polymethyl methacrylate resin; polyolefin resins such as polyethylene, polypropylene and ethylene-vinyl acetate copolymer; polyester resins such as polyethylene terephthalate; polyurethane resins and the like. Mixtures of these synthetic resins and copolymer of monomers can also be used. Moreover, the foamable resin which impregnated those synthetic resins with the physical type | mold foaming agent may be sufficient. The pallet substrate may be a non-foamed resin or a foamed resin, but is preferably made of a foamed resin from the viewpoint of light weight and ease of handling.

  In the present invention, as a resin material for forming the skin sheet, polystyrene resin such as polystyrene, high impact polystyrene, styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer, styrene-acrylonitrile-butadiene copolymer; Examples thereof include polyolefin resins such as polyethylene, polypropylene, and ethylene-vinyl acetate copolymer. Foamed and non-foamed films or sheets formed by themselves or by lamination can be used as the skin sheet.

  By using the resin pallet according to the present invention, it is possible to stably hold the loaded cargo on the pallet during transportation.

  Hereinafter, the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a perspective view showing an example of a resin pallet according to the present invention, and a part thereof is shown in cross section. FIG. 2 is a perspective view showing another example of the resin pallet according to the present invention, and a part thereof is shown in cross section.

  A resin pallet 10 shown in FIG. 1 is made of a foamed resin including a plate portion 11 on which a load is placed and two or more (three in the illustrated example) leg portions 12 formed on the back surface of the plate portion 11. The pallet base material 13 is covered with a first skin sheet 14 and a second skin sheet 15 in close contact with each other.

  The two skin sheets 14 and 15 are preferably made of resin sheets, and more preferably made of the same resin material as the pallet base material 13 and harder than that. In this example, the second skin sheet 15 covers the side surface and back surface of the plate portion 11 and the leg portion 12, and the first skin sheet 14 covers the surface of the plate portion 11. The edge 16 of the first skin sheet 14 is folded along the side surface of the pallet base material 13 so as to overlap the second skin sheet 15, and both are integrated by, for example, heat sealing. Although not shown, the entire pallet base material 13 may be covered with a bag-shaped skin sheet in a close contact state.

  The pallet base material 13 is formed by a normal mold forming method. The resin material and the expansion ratio may be appropriately selected according to the use environment of the resin pallet 10 to be obtained, and are, for example, a foamed polystyrene molded product having an expansion ratio of about 60 times. Further, as the first and second skin sheets 14 and 15, for example, high impact polystyrene sheets having a thickness of about 0.7 mm are used. The first skin sheet 14 and the second skin sheet 15 may be coated on the pallet base material 13 by an appropriate method. As an example, the heat-softened skin sheets 14 and 15 are formed from the pallet base material 13. It is used as a mold and is brought into close contact with the pallet substrate 13 by a vacuum forming method.

  The resin pallet 10 made in this way is easily slipped between the load and the skin sheet 14 because the surface of the plate portion 11 that is a surface on which the load is placed is covered with the skin sheet 14. As a countermeasure, one or more through holes 17 are formed in the resin pallet 10 so as to penetrate the first skin sheet 14, the plate portion 11, and the second skin sheet 15. Yes. In the illustrated example, a cylindrical body 18 made of a resin material or a metal material is inserted into the through hole 17 for reinforcement. Further, although the through hole 17 having a circular cross section is shown, the cross section may be an elliptical or rectangular through hole. By using this through hole 17, a fastening material (not shown) is fastened to the resin pallet 10 side, and the load placed on the plate portion 11 is fixed using the fastening material, so that there is no slippage. Thus, the luggage can be fixed to the resin pallet 10.

  In the resin pallet 10A shown in FIG. 2, a reinforcing material 19 made of a wood material such as plywood or solid wood is disposed at the bottom of the leg portion 12, and an appropriate interval is also provided on the surface of the plate portion 11. The same second reinforcing material 20 is disposed, and the pallet base material 13 in that state is covered with the first and second skin sheets 14 and 15 as described above. One reinforcing member 19 is effectively used as a fixing member holding material when a horizontal member (not shown) made of a wood material or the like is driven and fixed to the lower surface of the leg 12 with a fixing member such as a nail. . The horizontal member functions to prevent the resin pallet 10A from being inadvertently detached from the fork when the resin pallet 10A is conveyed by a fork of a forklift. The other reinforcing material 20 is used as a fixture support material when an appropriate luggage support material is fixed to the surface of the resin pallet 10A. For some reason, a plate material such as plywood may be disposed on the surface, but it can also be used for fixing the plate material at that time.

  In both of the resin pallets 10 and 10A, the pallet base material 13 having the through holes 17 formed in advance was used, and the surface of the pallet base material 13 was covered with the first and second skin sheets 14 and 15. Thereafter, a hole may be made by using a thermal iron or the like at the position of the skin sheet where the through hole 17 is located, and the pallet base material 13 having no through hole is formed, and the first second is formed there. After covering the skin sheets 14 and 15, the through-holes 17 may be formed in necessary places.

  3 and 4 illustrate one mode of stably fixing the luggage 30 placed thereon using the resin pallet according to the present invention. This resin pallet 10B is different from that shown in FIGS. 1 and 2 in that the through-hole 17 has a rectangular cross section, but the other configurations are the same. In this example, as shown in FIG. 3, before the luggage 30 is placed on the resin pallet 10 </ b> B, the flat belts 31, 31 that are fastening materials are temporarily fastened to the resin pallet 10 </ b> B side through the through holes 17. . In this state, the luggage 30 is placed on the resin pallet 10B, and the flat belts 31 and 31 that have been temporarily fastened to the resin pallet 10B in advance are hung on the luggage 30. Thereafter, as shown in FIG. 4, the flat belt 31 is tightened and fixed using the fastener 32, so that the luggage 30 can be stably moved on the resin pallet 10B without being inadvertently moved. Fixed to.

The perspective view which shows an example of the resin pallets by this invention. The perspective view which shows the other example of the resin-made pallets by this invention. The figure for demonstrating the one aspect | mode which fixes a load stably on a resin pallet using the resin pallet by this invention. The figure which shows a state when a load is fastened and fixed on a resin pallet using a fastening material.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,10A, 10B ... Resin pallet, 11 ... Plate | board part which mounts a load, 12 ... Leg part, 13 ... Pallet base material, 14 ... 1st skin sheet, 15 ... 2nd skin sheet, 17 ... Through-hole, 18 ... Reinforcing cylinder, 19 ... Reinforcing material, 20 ... Second reinforcing material, 30 ... Luggage, 31 ... Fastening material, 32 ... Fastener

Claims (2)

  A resin pallet in which a pallet base material having a plate portion on which a load is placed and two or more legs formed on the back surface of the plate portion is covered with a reinforcing skin sheet, the plate portion and the skin sheet being A resin pallet having one or more through-holes penetrating therethrough.   The resin pallet according to claim 1, wherein a reinforcing cylinder is inserted into the through hole.

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