JPH0755711B2 - Cardboard pallets - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to corrugated board pallets.

[0002]

2. Description of the Related Art Conventionally, cardboard pallets are lightweight and
It is load-bearing and widely used because it can be manufactured at low cost. Most of them have a cardboard flat plate on the top plate, and take a form that supports the top plate at least at both edges so that the top plate part is lifted up, and the pawls of a forklift are inserted to move the goods placed on the cardboard pallet. It is used to
Known examples include, for example, Japanese Utility Model Publication No. 62-36741, Japanese Utility Model Publication No. 3-38094, and Japanese Patent Application Laid-Open No. 4-2159.
No. 43 publication is available.

[0003]

When the top plate is supported by at least both edges, it is preferable that the load is evenly applied to both edges, but a small article packed in a bag at the center of the top. When the load is not fixed, the distributed load cannot be withstood, and the top plate bends, making it difficult to support the load.

In order to withstand such a distributed load, a plastic film or cloth is laminated on the upper surface of the corrugated board and a reinforcing plate is formed on the inner surface, as shown in Japanese Utility Model Publication No. 62-36741. Arrangement and fixing with needle nails, loading of paper tubes into seat legs or a box body as in Japanese Utility Model Publication No. 3-38094, a plurality of reinforcing plates are arranged on the inner surface of the deck board, and wires Fix it with
There is also a configuration where the paper tube is installed. However, all of them have a complicated structure and have a drawback that they need to be laid with needle nails or wires.

Further, in Japanese Patent Laid-Open No. 4-215943,
It is proposed that the horizontal beam member and the deck member are formed by bending and stacking corrugated cardboard parallel to the corrugation, and are fitted and assembled so that the horizontal beam and the deck part are formed. In this case, it is weak against torsional stress, and it is not possible to prevent bending even by fitting the beam and deck.
The bottom of the beam has a complicated structure such as a columnar side wall for reinforcement.

An object of the present invention is to solve the above-mentioned problems of the conventional example, and to use a corner member or a corner member of a paper honeycomb core laminated by cutting or folding orthogonally to the corrugated corrugated board. Provides strong rigidity against loads from vertical and horizontal planes, does not deform or buckle even with distributed loads, has a wide adhesive surface, can stably hold the top plate part, and will provide a corrugated board pallet that is easy to assemble It is what

[0007]

In order to achieve the above object, the first invention is a corner member A in which a plurality of narrow corrugated cardboards are laminated by cutting or folding at right angles to the corrugated shape of the corrugated board.
B is provided, the corner member A is provided with a plurality of notches at the upper edge, the upper ends of both side walls are bent to provide a horizontal flange portion, and a plurality of the corner members A can be inserted into a forklift claw. Made of corrugated cardboard in which a plurality of corner members B are fitted in the notches and the top plate portion is adhesively fixed to the upper end surface and the flange portion of the corner member A by using an adhesive. It was a pallet.

A second aspect of the invention is a corrugated board pallet using a honeycomb honeycomb core as the corner members A and B. In the third invention, the corner member B is a corrugated board pallet using a square paper tube. The fourth invention is a corrugated board pallet using, as the corner member B, a member around the corner member B wrapped with corrugated cardboard.

[0009]

According to the first aspect of the invention, since the corner member is formed by laminating a plurality of narrow corrugated boards by cutting or folding at right angles to the corrugated shape of the corrugated board, it is strong against the stress in the vertical direction.
Further, since the corner member B is inserted into the cutout portion of the upper end edge of the corner member A, the corner member B is reinforced against bending in the horizontal direction. Further, after fitting and assembling the corner members A and B, the corner member A has a flange portion horizontally bent from the upper ends of both side walls, and the flange portion is horizontal with the upper end surface of the corner member B. Because
The top plate portion can be reliably bonded with an adhesive, and the pressure receiving action on the entire top plate portion is strengthened on average.

In the second aspect of the invention, since the honeycomb cores made of paper are used as the corner members A and B, it is not necessary to stack narrow corrugated board like corrugated corrugated board. In the third invention, since the square paper tube is used, it is not necessary to stack the narrow corrugated board to form the square member B. In the fourth invention, the corner member B is further reinforced.

[0011]

Embodiments will be described below with reference to the drawings shown as embodiments. Reference numeral 1 denotes a corner member A, which has a shape in which a plurality of narrow width corrugated boards are laminated by cutting or folding orthogonally to the corrugated shape of the corrugated board, and a plurality of notches 2 are provided at the upper edge. Reference numeral 3 denotes a brim portion, which is provided horizontally by bending the upper ends of both side walls of the corner member A. Reference numeral 4 denotes a corner member B, which has a shape in which a plurality of narrow corrugated cardboards are laminated by cutting or folding orthogonally to the corrugated shape of the corrugated board. The corner member B4 is fitted into the cutout portion 2 of the corner member A1, and the flange portion 3 is located on the upper surface thereof. The brim portion 3 and the top plate portion 5 are fixed by adhesion.

FIG. 2 is a development view showing a case where the corner member A1 is folded, and the brim portions 3 are formed at both ends by the folding lines 6, and the central portion is folded by the folding lines 7 and 8 to form a notch. The part 2 is formed to be the laminated corner member A. It should be noted that as the corrugated board, one having a front board attached on both sides or one side can be used. In this embodiment, since the corner members A and B are assembled orthogonally through the cutout portion 2, the corner members are prevented from bending in the horizontal direction. Further, since the corrugated board is cut or bent in the direction orthogonal to the corrugations, the rigidity is strong in the vertical direction, and the rigidity is high in all directions as a whole.

Further, since the flange portion 3 of the corner member A1 constitutes a horizontal surface over the entire surface of the top plate portion 5 and is adhered to this by an adhesive, the pressure receiving surface should be averaged over the entire surface. As a result, even small items such as bags, whose center of gravity moves, can be placed stably. Reference numeral 9 in FIG. 3 shows another embodiment of the corner member B, in which corrugated cardboard is wound around the corner member 4.

FIG. 4 is a perspective view showing an example of the paper honeycomb core 10. In this case, the corrugated cardboard can be used as it is as a corner member without cutting or bending and stacking.

[0015]

According to the above-mentioned structure, the pallet made of corrugated board has a high rigidity in the vertical direction, and since the corner members are assembled orthogonally to each other, the rigidity in the horizontal direction is also strengthened.
Products such as small items can now be stably placed and transported.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a pallet of the present invention.

FIG. 2 is a development view of a corrugated board that constitutes one of the corner members A.

FIG. 3 is an enlarged perspective view showing another embodiment of the corner member B.

FIG. 4 is an enlarged perspective view showing a main part of a paper honeycomb core.

[Explanation of symbols]

 1 Corner member A 2 Cutout part 3 Collar part 4, 9 Corner member B 5 Top plate part

Claims (4)

[Claims] 1. Angular members A and B each having a shape in which a plurality of narrow corrugated cardboards are laminated by cutting or folding orthogonally to the corrugated shape of the corrugated cardboard, and the angular member A has a plurality of cutouts at its upper edge. The upper ends of both side walls are bent to form a horizontal flange portion, and a plurality of the corner members A are arranged in parallel with a space for inserting the claws of the forklift into a plurality of corner members B. A corrugated board pallet characterized in that a top plate portion is fitted and inserted into a notch portion and an upper end portion and a brim portion of the corner member A are adhesively fixed to a top plate portion. 2. The corrugated board pallet according to claim 1, wherein a paper honeycomb core is used as the corner members A and B. 3. A square paper tube is used as the square member B.
Alternatively, the cardboard pallet according to the item 2. 4. The corrugated board pallet according to claim 1, wherein the corner member B is a corrugated cardboard wrapped around the corner member B.