JPH06144441A - Pallet - Google Patents

Abstract

PURPOSE:To prevent breakage of wooden parts while preventing acceleration of decay in the wooden parts by a method wherein both ends of fork-inserting parts of a pallet body are covered with plastic end members, to which openings for penetrating the forks of a forklift truck therethrough are provided. CONSTITUTION:A pallet body 1 is constructed of three long, narrow square blocks 2 in square or rectangular section arranged in parallel with one another at specified intervals and a pair of wooden boards 3 connected respectively to the upper side and the underside of those square blocks 2. Wooden square bars may be used for making the square blocks 2. However, recycled waste plastic material having perforation shrinkability is desirable to be used. Spaces surrounded with such square blocks 2 and the wooden boards 3 on the upper and the lower sides are used as parts 4, to which forks of a forklift truck can be inserted. Both ends of each of the fork-inserting parts 4 are covered with plastic end members 5, to which openings 6 for penetrating the forks therethrough are respectively provided. Therefore, the front ends of the forks collide against the end members when the forks of the forklift truck are inserted. When the pallet is put endways in open-air storage, decay is not accelerated in the wooden parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet used for transferring or transporting articles by a forklift, and more particularly to a pallet improved to have excellent durability.

[0002]

2. Description of the Related Art A pallet used for transferring or transporting articles by a forklift is lightweight, and the article having a large coefficient of friction on the surface is not slippery and absorbs water adhering to the surface immediately. Generally, wood is often used for reasons such as the fact that articles do not get wet. This wooden pallet is made up of a plurality of wooden square blocks arranged in parallel at a predetermined interval and joined together by wooden boards such as nailing or screwing to form a pallet body. The space surrounded by the square blocks and wooden boards is forklifted. It is a claw insertion part.

[0003]

However, in such a wooden pallet that has been conventionally used, the tip of the pawl hits the end of the pawl inserting portion when the pawl of the forklift is inserted into the pawl inserting portion. The edge of the lever was often damaged, especially the edges of the upper and lower wood boards. Further, when the pallets are leaned against each other and piled up in the open air, there is a problem that a high water content portion is generated at the lower end portion of the pallet that has absorbed the rainwater, and the progress of corrosion of the portion is promoted. If the end of the pallet is damaged or corroded in this way, it is dangerous to use the pallet even if the other parts are normal. Therefore, the pallet is often repaired or discarded. That is, if the pallet with the damaged end is used as it is, the pallet body may be damaged when a strong stress is applied to the lower end thereof. Therefore, a solution to this problem has been strongly desired. Therefore, the present invention has an object to solve such a problem in the conventional pallet.

[0004]

A pallet according to the present invention, which has solved the above-mentioned problems, has a main body in which upper and lower parts of a plurality of corner blocks arranged in parallel at a predetermined interval are joined by a wooden board. A pallet in which the enclosed space is a claw insertion part of a forklift, and both end surfaces on the side of the claw insertion part are covered with plastic end members each having an opening for fork lift claw penetration, The end member is fixed to the corner block. In a preferred embodiment of the present invention, the end member has a thickness smaller than that of the main body, and a step is provided between the upper surface or the lower surface of the main body and the upper surface or the lower surface of the end member adjacent thereto, respectively. In still another preferred embodiment of the present invention, the corner block is made of a waste plastic recycled material having a piercing shrinkage property, and a wooden board is nailed or screwed to the corner block. In another preferred embodiment of the present invention, a bolt hole is provided in the axial direction from the end surface of the square block, and a square nut accommodation hole having a rectangular cross section is provided in communication with the bolt hole from the side surface of the square block, The end member is detachably connected to both end surfaces of the main body on the side of the claw insertion portion using the bolt and the square nut.

[0005]

In the pallet according to the present invention, both end surfaces of the main body on the side of the claw insertion portion are covered with the plastic end members having the openings for the fork nails of the forklift, so that the weak wooden end portions are covered by it. Be protected. Therefore, when inserting the forklift nail, the tip of the nail hits this end member,
It is possible to prevent damage to the wooden part of the pallet. Further, even if rainwater is absorbed by leaning against a pallet and stacking it in the open, the lower end portion is made of a plastic end member that is resistant to corrosion, so corrosion of the wooden portion is not promoted.

[0006]

Embodiments of the pallet of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an example of the pallet of the present invention, and FIGS. 2 and 3 are a front view and a side view thereof, respectively. In these figures, the main body 1 of the pallet has three elongated rectangular blocks 2 having a rectangular or square cross section arranged in parallel at a predetermined interval, and the angular blocks 2
It has a pair of wood boards 3 which are respectively connected to the upper and lower sides of the. The rectangular block may be a wooden prism that is commonly used in this field, but from the viewpoint of durability and the like, it is preferable to use a waste plastic recycled material having a piercing shrinkage property. This waste plastic recycled material with perforation shrinkage is
For example, a waste plastic recycled material that contains impurities such as waste polyethylene that acts as a filler,
The portion pierced by a nail or the like has a contracting property and has a property of tightening the nail or the like to make it hard to come off. This kind of recycled plastic waste material is inexpensive, strong against impact and excellent in corrosion resistance.
It can be nailed, etc., and a saw, plane, or drill can be used during processing, so a pallet can be easily made.

As the wood board 3, a thick board having a constant width, which is usually used in this field, is used. As shown in FIG. 1, the wood boards 3 are closely arranged and arranged in parallel, and nailed or wood screwed to the square block 2. Are linked by etc. Further, a forklift claw insertion portion 4 is formed by a space portion surrounded by the corner block 2 and a pair of upper and lower wooden boards 3. Both end surfaces of the main body 1 in the claw insertion direction of the forklift are covered with end members 5. The end member 5 is made of, for example, an injection-molded body of a hard plastic such as a polyamide (nylon) resin, a polypropylene pyrene resin, or a fiber reinforced resin containing glass fibers therein. Further, the color of the end member can be easily classified by changing the color according to the type of the article to be placed, the shipping destination, or the like. At the same time, automatic selection is possible by the color reading device. Of course, automatic selection may be performed by attaching a barcode or the like to this end member. The end member 5 has an elongated rectangular outer shape having a length adapted to the end portion of the main body 1, and as shown in FIG. 2, openings 6 for penetrating the fork of a forklift are provided at two positions thereof.
have. It should be noted that this opening 6 is provided with the claw insertion portion 4 of the main body 1.
It is provided according to the position of.

The end members 5 are bolted to the ends of the three corner blocks 2 of the main body 1, respectively. This bolt connection portion is shown in FIG. 4 as a partially enlarged sectional view. Corner block 2
A bolt hole 7 is provided in the axial direction from the end surface of the square block, and a square nut housing hole 8 having a rectangular cross section is provided so as to communicate with the bolt hole 7 from the side surface of the square block. On the other hand, a recess 10 having a bolt hole 9 formed in the central portion is provided in the bolt coupling portion of the end member 5, and the bolt 11 is inserted from the portion into the bolt hole 7 of the square block 2 to form the square nut receiving hole 8 It is screwed to the square nut 12 inserted from. As shown in FIG. 4, the end member 5 has a smaller thickness than the main body 1,
A step 13 is provided between the upper surface or the lower surface of the end member 5 and the upper surface or the lower surface of the end member 5 adjacent to the upper surface or the lower surface. With this configuration, the articles placed on the pallet are the end members 5
And prevents the article from slipping on the surface of the plastic end member. Also, even if water adheres to the plastic end member, it will not stick to the article. Furthermore, the water accumulated on the surface of the main body 1 while it is being used horizontally, especially the water accumulated on the end of the wooden board 3 flows down from the step 13 to the lower end member 5, and It is possible to more effectively prevent the corrosion promotion of the part by water.

Such a pallet is assembled as follows. First, three square blocks 2 are arranged in parallel, end members 5 are arranged at both ends in the longitudinal direction of the square blocks 2, and the end members and the square blocks are fastened and fixed with bolts 11 and square nuts 12. Complete the skeleton. Then, the wood board 3 is placed on the upper surface and the back surface of the corner block, and the wood board 3 and the corner block 2 are driven by nailing or wood screws on the wood board.
Fasten and fasten to complete the pallet. If the end member 5 is severely damaged during use, the bolt 11 can be removed and only the end member 5 can be replaced easily and quickly. Further, FIGS. 5 to 9 respectively show the end members 5 constituting the essential part of the present invention.

[0010]

The pallet of the present invention having the above structure has the following effects. (1) Since both end edges of the claw insertion part of the main body are covered with plastic end members each having an opening for fork lift claw penetration, the wooden end part which is weak in strength is effectively protected thereby. It Therefore, when the nail of the forklift is inserted, the tip of the nail hits against this end member, and damage to the wooden portion of the pallet can be prevented. (2) Even if rainwater is absorbed by leaning against a pallet and stacking it in the open, the lower end portion is made of a plastic end member that is resistant to corrosion, so that corrosion of the wooden portion is not promoted. (3) The end member has a thickness smaller than that of the main body, and a step is provided between the upper surface or the lower surface of the main body and the upper surface or the lower surface of the end member adjacent to the main body. The article to be placed does not come into contact with the plastic end member and the article does not slip. Further, it is possible to prevent the water attached to the end member, which hardly absorbs water, from adhering to the article. (4) The corner block is made of recycled waste plastic material with piercing shrinkage, and the wooden board is nailed or screwed to the corner block, so that the original easiness of manufacture of the wooden pallet is not impaired and corrosion resistance is further improved. It can be an excellent pallet.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a pallet of the present invention.

FIG. 2 is a front view of the pallet in FIG.

FIG. 3 is a side view of the pallet in FIG.

4 is a partially enlarged cross-sectional view of a bolt connecting portion of the end member 5 of the pallet in FIG. 1, which is a IV-IV cross-sectional view of FIG.

FIG. 5 is a front view of the end member of the pallet of the present invention.

6 is a sectional view taken along the line AA of FIG.

FIG. 7 is a side view of the end member.

8 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 9 is an enlarged cross-sectional view taken along line CC of FIG.

[Explanation of symbols] 1 main body 2 square block 3 wood board 4 claw insertion part 5 end member 6 opening 7 bolt hole 8 square nut receiving hole 9 bolt hole 10 recess 11 bolt 12 square nut 13 step

Claims (4)

[Claims] 1. A main body 1 in which upper and lower parts of a plurality of corner blocks 2 arranged in parallel at a predetermined interval are joined by a wood board 3, and a space surrounded by the corner blocks 2 and the wood board 3 has a forklift pawl. In the pallet formed as the insertion portion 4, both end surfaces on the side of the claw insertion portion 4 are covered with plastic end members 5 each having an opening 6 for the nail lift of a forklift. A pallet fixed to the corner block 2. 2. The end member 5 has a thickness smaller than that of the main body 1, and a step 13 is provided between the upper surface or the lower surface of the main body 1 and the upper surface or the lower surface of the end member 5 adjacent to the upper surface or the lower surface, respectively. palette. 3. The pallet according to claim 1, wherein the corner block 2 is made of a waste plastic recycled material having a piercing shrinkage property, and a wooden board is nailed or screwed to the corner block 2. 4. A bolt hole 7 is provided in the axial direction from the end surface of the square block 2, and a square nut housing hole 8 having a rectangular cross section is provided in communication with the bolt hole 7 from the side surface of the square block 2. 2. The pallet according to claim 1, wherein the bolt 5 and the square nut 12 are detachably connected to both end surfaces of the main body 1 on the side of the claw insertion portion 4.