JP2003267370A - Assembled pallet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate some prior-art problems that the assembly of a pallet requires a troublesome work due to usage of spikes, and that the spikes are automatically pulled out. <P>SOLUTION: This pallet is assembled by a plurality of extruded and molded members. The extruded and molded members have beams, upper deck-board and lower deck-board. This pallet is a hollow member having a rectangular sectional shape. This pallet has the feature that the outer surface of the beam at the extruded and molded member is provided with a fitting part, and the fitting portions are fitted to each other to make an integral assembly. The fitting part may have a configuration in which one extruded and molded member is provided with a concave fitting part and its mating extruded and molded member is provided with a convex fitting part; one extruded and molded member is provided with the concave fitting part and the convex fitting part and its mating extruded and molded member is provided with the convex fitting part and the concave fitting part. In addition, it is also possible to assemble them through a connecting member. Further, it is also possible to arrange a covering member to close a clearance between the abutting surfaces of the extruded and molded members during the aforesaid assembling works. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet for a forklift used when storing and transporting luggage, and particularly to a hygienic assembly type pallet that is easy to assemble.

[0002]

2. Description of the Related Art Conventionally, synthetic resin pallets having excellent corrosion resistance and stain resistance have been widely used as forklift pallets used for storing and transporting luggage. Further, in recent years, wood-based materials, that is, wood powder, which is a crushed product of cellulose, paper powder, which is a crushed product of waste paper, and a molding material made of a thermoplastic resin are kneaded with an extruder to obtain a predetermined meat. A wood-based resin pallet made of girders and deck boards made of wood-based material extruded thickly is used.

FIG. 6 is a two-way insertion pallet showing an example of a conventional wooden resin pallet. recent years,
Developed a wood-based resin material containing wood-based materials made by extrusion molding a wood-based material such as wood powder obtained by crushing wood, paper dust obtained by finely crushing waste paper or waste paper, and a molding material composed of a thermoplastic resin Has been done. The two-way pallet 1 is a board formed by extruding these wood-based resin materials on both end girders 2 and an intermediate part girder 3 provided substantially in the middle of the both end girders 2. The upper deck board 4 and the lower deck board 5 are formed by assembling 4a and 5a into a cage shape. A space surrounded by the girders 2, 3, the upper deck board 4 and the lower deck board 5 is used as a fork insertion port 6.

[0004]

The two-way pallet 1 made of wood-based resin is integrally assembled with the nails 7 for assembling the upper deck board 4 and the lower deck board 5. Therefore, it takes time to assemble the boards 4a and 5a on the girder 2 and the production efficiency is low. In addition, in order to automate nailing and perform automatic assembly, equipment for a large automatic assembly line is required, which requires equipment cost and requires a large space.

Further, since the conventional two-way pallet made of wood-based resin is integrally assembled by nailing, the nail 7 may come off during long-term use, or the nail 7 may be injured when it is about to come off. Therefore, there is a problem that inspection and repair must be carried out at all times. In addition, the nails 7 that have fallen off may be mixed in the load while the pallet is in use.

Further, the above-mentioned digits 2, 3 and boards 4a, 5a
When is extruded in the shape of a hollow body, small voids are opened at both end faces, so that the voids are contaminated, and molds and bacteria are easily attached. Therefore, it is not suitable for pallets used in the food industry.

The present invention has been made in view of the above circumstances, and provides a hygienic assembly type pallet which can be easily assembled without requiring large equipment.

[0008]

In order to achieve the above object, the present invention has the following constitution. That is, the assembly type pallet according to the present invention is an assembly of a plurality of extruded members, and the extruded member has a girder portion, an upper deck board and a lower deck board, and has a rectangular hollow section. It is the body. A fitting portion is provided on the outer surface of the girder portion of the extruded member, and the fitting portions are fitted to each other to be integrally assembled. The fitting portion may have a configuration in which one extruded member is provided with a concave fitting portion and the other extruded member is provided with a convex fitting portion, or one extruded member is provided with a concave fitting portion. A configuration may be employed in which the mating portion and the convex fitting portion are provided, and the extruding member on the other side is provided with the convex fitting portion and the concave fitting portion. Further, the assembly type pallet according to the present invention has a girder portion, an upper deck board, and a lower deck board, and comprises an extruded member having a rectangular hollow section and a connecting member. A fitting portion is provided on the outer surface of the girder portion of the extruded member, and the cross-sectional shape of the connecting member is formed into a shape that fits into the fitting portion, and the extruded member is connected via the connecting member. It can be configured to be integrally assembled. When assembling via the connecting member, the fitting portion may be a concave fitting portion or a convex fitting portion. Also, in any of the above-mentioned assembly, to close the gap between the butted surfaces of the extruded member,
A covering member may be provided on the upper deck board and / or the lower deck board.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The pallet according to the present invention is formed by assembling a plurality of extruded members. FIG. 1 is a perspective view in which two extruded members before assembly are opposed to each other. The extruded members 10A and 10B have a girder portion 11 and a girder portion 12, respectively.
It is a hollow body having a rectangular cross section composed of an upper deck board portion 13 and a lower deck board portion 14. The girder portions 11 and 12
A space surrounded by the upper deck board 13 and the lower deck board 14 serves as a fork insertion port 15.

The girder portion 1 of the extruded members 10A and 10B
Reference numeral 2 is a butt surface, and a concave fitting portion 16 and a convex fitting portion 17 are formed on the outer surface in the horizontal direction. The recessed fitting portion 16 of the extrusion-molded member 10A is a recessed portion whose inside bulges like a dovetail groove, and is formed in two steps, upper and lower. On the other hand, the convex fitting portion 17 of the extrusion molded member 10B
Is a convex portion having a bulged tip like an ant that fits in the concave portion, and is formed in two steps vertically facing the concave fitting portion 16.

In order to assemble the extrusion-molded members 10A and 10B having the above-mentioned configuration to form a pallet, the concave fitting portion 16 and the convex fitting portion 17 may be fitted together. In order to fit the concave fitting portion 16 and the convex fitting portion 17, the end portion is inserted along the side surface and slid as it is, and the extrusion molded member 10A.
It suffices that the both ends of the extrusion molded member 10B are aligned with each other.

A two-way insertion pallet is formed by assembling the two extrusion-molded members 10A and 10B, and the fitted girder portion 12 serves as an intermediate girder of the pallet. Since both extrusion molded members 10A and 10B are firmly fitted and do not come off, they can be suitably used as a pallet for carrying and storing loads.

FIG. 3 is an enlarged perspective view showing a second embodiment of the fitting portion. In this embodiment, the concave fitting portion 16A and the convex fitting portion 17A are not divided into upper and lower parts, respectively.
Formed into one. The concave fitting portion 16A is a dovetail groove, and the convex fitting portion 17A is a dovetail.

As described above, when one concave fitting portion 16A and one convex fitting portion 17A are used, the fitting is easy.

FIG. 4 is an enlarged perspective view showing a third embodiment of the fitting portion. In this embodiment, the extruded member 10
Each of the A and 10B girders 12 is provided with a concave fitting portion 16B and a connecting member 18 fitted in the concave fitting portion 16B. The concave fitting portion 16B is a dovetail-shaped concave portion and is horizontally provided on the outer surface of the girder portion 12.

The connecting member 18 is formed with V-shaped grooves on the upper and lower surfaces, and half of each side from the center of the groove is inserted into the recessed fitting portions 16B of the extruded members 10A and 10B. Therefore, the extruded members 10A and 10B are
It will be integrally connected via the connecting member 18. In order to fit the connecting member 18 in the concave fitting portion 16B, the inner fitting portions 12B of the extruded members 10A and 10B are butted against each other so that the concave fitting portions 16B face each other, and are formed by the concave fitting portion 16B. The connecting member 18 may be inserted into the formed space.

When assembling the extrusion molded member via the connecting member, the convex fitting portion is provided on the side of the extrusion member and the convex fitting portion is provided on the side of the connecting member, contrary to the above embodiment. It may be configured to form a concave groove into which is fitted. In this case, it is preferable that the height of the connecting member is the same as the height of the girder portion.

Further, FIG. 5 is a sectional view of an essential part showing a fourth embodiment of the fitting part. In this embodiment, a concave fitting portion 16C and a convex fitting portion 17A are provided on the side surfaces of the girder portion 12 of the extrusion molded members 10A and 10B, respectively. That is, on the outer surface of the girder portion 12 of the extrusion molded member 10A, the convex fitting 17A is provided on the upper stage and the concave fitting portion 16C is provided on the lower stage. On the other hand, the outer surface of the inner girder portion 12 of the extruded member 10B is provided with a concave fitting portion 16C in the upper stage and a convex fitting portion 17A in the lower stage.

Tape-shaped covering members 20 are provided on the upper deck board 13 and the lower deck board 14 on the abutting surfaces of the extruded members 10A and 10B so as to close the gap. The covering member 20 is preferably provided on both surfaces of the upper deck board and the lower deck board, but may be provided on only one of them. The covering member 20 is provided on a step portion formed by cutting out the upper and lower corner portions of the girder portion 12 of the extrusion-molded members 10A and 10B.

By providing the covering member 20, the streak-like gaps formed on the abutting surfaces of the extrusion-molded members 10A and 10B are closed, so that the upper and lower surfaces are completely closed. In this way, by closing the gap between the butting surfaces, a more robust pallet can be obtained, and mold can be suppressed and a clean pallet can be obtained.

The covering member 20 may be made of the same material as that of the extruded member, but may be a non-slip material having elasticity. When the covering member 20 is a non-slip material, it is preferable that the covering member 20 is attached so that the upper surface thereof slightly projects from the surfaces of the extrusion molded members 10A and 10B.

It is possible to form the first to fourth embodiments in combination. For example, in the first to third embodiments, the anti-slip material 20 may be provided so as to close the gap between the butting surfaces. Further, the shapes of the concave fitting portion and the convex fitting portion are not limited to the above embodiment,
It can be modified appropriately.

The material for molding the extrusion molded member may be any material that can be extruded. For example, it may be one in which an antioxidant is added together with a foaming agent containing polypropylene, polystyrene, polyethylene or the like as a main component, or a synthetic rubber is added in order to improve impact resistance. Also, glass fiber, glass flake, as a reinforcing material,
Inorganic or organic fillers such as wood fibers and carbon fibers may be added. Further, it may be a wood-based material, that is, a wood-based material which is a crushed product of cellulose, a paper-based material which is a crushed material of waste paper, and a thermoplastic resin containing a wood-based material which is made of a thermoplastic resin.

In the above embodiment, the case where two extruded members are assembled to form a pallet has been described, but the number of extruded members may be two or more. When assembling three or more extruded members, the extruded members other than the extruded members located at both ends may be formed with fitting portions on the side surfaces of the beam portions on both sides.

[0025]

The synthetic resin pallet according to the present invention is
Since only the fitting portion formed on the side surface of the extruded member is fitted and assembled, the assembly is easy and an inexpensive pallet can be obtained. Moreover, nailing and the like are unnecessary, and large equipment is not required for automatic assembly. In addition, since there are few joint surfaces and small voids are not formed, there is no possibility that these voids will be contaminated and mold will grow. Moreover, since there is no need for repair, management is easy. In addition, the size of the pallet can be easily changed by cutting the extrusion-molded member at any position during extrusion molding. Further, since the synthetic resin pallet according to the present invention can be disassembled into the extruded molded member before assembly, not only can the damaged molded member be easily replaced, but also a small crusher can be used for recycling. Can be processed.

[Brief description of drawings]

FIG. 1 is a perspective view of two extruded members before being assembled.

FIG. 2 is an enlarged perspective view of a main part of FIG.

FIG. 3 is an enlarged perspective view of an essential part showing a second embodiment.

FIG. 4 is an enlarged perspective view of an essential part showing a third embodiment.

FIG. 5 is an enlarged sectional view of an essential part showing a fourth embodiment.

FIG. 6 is a perspective view of a conventional two-way pallet made of wood-based resin.

[Explanation of symbols]

1: Pallet 10A, 10B: Extruded member 11: Digit part 12: Digit part 13: Upper deck board 14: Lower deck board 15: Fork slot 16, 16A, 16B, 16C: Recessed fitting part 17, 17A: Convex fitting part 18: Connection member 20: Cover member

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Noriaki Hara             No. 1 Nobezawa, Kaisei-cho, Ashigarakami-gun, Kanagawa Stock             Company Meiji Rubber Kasei Head Office Factory (72) Inventor Kei Shioya             No. 1 Nobezawa, Kaisei-cho, Ashigarakami-gun, Kanagawa Stock             Company Meiji Rubber Kasei Head Office Factory (72) Inventor Ochiai             No. 1 Nobezawa, Kaisei-cho, Ashigarakami-gun, Kanagawa Stock             Company Meiji Rubber Kasei Head Office Factory F-term (reference) 3E063 AA04 BA05 BA06 BA13 CA05                       CA13 CA21 EE01 GG03

Claims (7)

[Claims] 1. A pallet comprising an extruded member having a girder portion, an upper deck board, and a lower deck board, the cross section of which is a rectangular hollow body, the outer surface serving as an abutting surface of the girder portion. An assembling type pallet, characterized in that a fitting portion is provided in the, and the fitting portions are fitted together to be integrally assembled. 2. The assembly according to claim 1, wherein the fitting portion has a concave fitting portion provided on one extruded member and a convex fitting portion provided on the mating extruded member. Mold pallet. 3. The fitting part has a concave fitting part and a convex fitting part provided on one extruded member, and a convex fitting part and a concave fitting part provided on the mating extruded member. Claim 1 characterized by the above-mentioned.
Assembly type pallet described in. 4. An extrusion molded member having a girder portion, an upper deck board, and a lower deck board, the cross section of which is a rectangular hollow body, and a connecting member, and the outer surface of the girder portion of the extruded member. An assembly characterized in that a fitting portion is provided, a cross-sectional shape of the connecting member is formed into a shape to be fitted into the fitting portion, and the extrusion molded member is integrally assembled through the connecting member. Mold pallet. 5. The assembly type pallet according to claim 4, wherein the fitting portion is a concave fitting portion. 6. The assembly type pallet according to claim 4, wherein the fitting portion is a convex fitting portion. 7. The covering member is provided on the upper deck board and / or the lower deck board so as to close the gap between the butted surfaces of the extruded member.
The assembly type pallet according to any one of 1.