JPH0446819B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to pallets for cargo handling.

Even if the deck board of the present invention is constructed from a relatively thin plate material, it has considerable strength against loads and impacts from forks of forklifts, etc.; To provide a cargo handling pallet that is lightweight, convenient to handle, and inexpensive to manufacture.

The present invention will be specifically described below based on embodiments shown in the drawings. In the first embodiment of the present invention shown in FIGS. 1 and 2, a curved portion 3 is formed by bending the periphery of a square plate material (steel plate, aluminum plate, stainless steel plate, etc.) using a press. Inside the periphery, a plurality of protrusions 4a extend horizontally parallel to each side of the square, leaving a narrow width on the diagonal of the square, near the center of each side of the square, and the center of the square, and extend vertically. A plurality of ridges 4b are formed, and a diameter larger than the narrow width on the diagonal line is formed at each vertex of the square without the ridges 4a and 4b, at the center of each side of the square, and at the center of the square. Square deck boards 1, 1 of the same shape each having a leg mounting convex portion 9 into which the end 8 of a cylindrical leg 2 is fitted are arranged to face each other vertically. .

In FIG. 1, a plurality of protrusions 4 extending in the horizontal direction are shown.
A and a plurality of protrusions 4b extending in the vertical direction provide the deck board 1 with rigidity in the horizontal direction in FIG. 1 by the former, and rigidity in the vertical direction in FIG. 1 by the latter. And, with only these protrusions 4a and 4b,
Although the diagonal portions of the square deck board 1 are not given rigidity in the direction perpendicular to the diagonal lines, narrow widths on the diagonal lines are provided at each apex portion of the square where the protrusions 4a and 4b are not provided and at the center of the square. Since leg attachment convex portions 9 are formed into which the end portion 8 of the cylindrical leg material 2 having a diameter larger than the width of The diagonal portion of the door 1 is given rigidity in a direction perpendicular to the diagonal. Therefore, in the first embodiment of the present invention, it is possible to insert the fork from all directions (the fork of the forklift can be inserted from both front, rear, right, and diagonal directions).

Furthermore, small protrusions 5 are formed on the protrusions 4a and 4b to prevent cargo placed on the deck board 1 from slipping. A large number of small holes 7 are formed in the portion 6 sandwiched between the plurality of protrusions 4a and 4b to facilitate washing away dirt and the like adhering to the deck board 1.

In addition, the leg material 2 is a metal pipe (deck board 1
It is preferable to use a metal made of the same quality as the metal. ) is cut to a predetermined size. The pair of upper and lower deck boards 1, 1 are connected by fitting the upper and lower ends 8 of the leg members 2 into the respective leg attachment convex portions 9 and by welding them.

In addition to the above-mentioned welding, means such as screwing, riveting, adhesion, etc. can be employed as means for fixing the leg material 2 and the deck board 1. In addition to metal pipes, the leg members 2 may be made of synthetic resin, wood, etc. depending on the material of the deck boards 1,1.

In the second embodiment of the present invention shown in FIG. 3, the leg member 2 is omitted, and the leg member attachment convex portion 9 of the first embodiment has a diameter larger than the narrow width on the diagonal line. A concave portion 10 forming a leg is formed, and the concave portions 10 of the upper and lower deck boards 1, 1 are fastened using bolts and nuts 11 with the concave portions 10 in contact with each other, and both concave portions 1 are fastened together.
0 and 10 constitute the leg portion 12. or,
The protrusions 4a, 4b are provided with a large number of raised holes 13 in place of the small protrusions 5 of the first embodiment, thereby forming an anti-slip surface. Further, a reinforcing metal wire (preferably made of a pipe) 14 is wrapped around the curved surface 3 of the periphery, and this is fixed to the curved surface portion 3 by spot welding or the like. As a method for fixing the reinforcing metal wire 14, a method may be adopted in which the curved surface portion 3 is subjected to a curling process and the reinforcing metal wire 14 is held by the curved surface portion 3.

The third embodiment of the present invention, shown in FIG. At multiple points around the central symmetrical point,
A recess 10a (in this embodiment, the lower end of the recess 10a is open, but it may be formed not to be open) is formed to fit into the end 8a of the leg member 2a, and the recess 10a is fitted into the recess 10a. The top-shaped leg members 2a are fixed by welding or the like, and the upper and lower leg members 2a, 2a
It is characterized in that it is connected using bolts and nuts 11. A plug 50 made of synthetic resin, rubber, or the like is inserted to close the recess 10a. Incidentally, the upper surface of the plug body 50 has an anti-slip effect.

The present invention can be configured in various ways other than those shown in the above embodiments. For example, the portions that impart rigidity in the vertical direction and the portions that impart rigidity in the horizontal direction to the deck board 1 may be formed into grooves that extend in the vertical direction and grooves that extend in the horizontal direction, respectively. It may be formed so as to have both a protrusion and a protrusion. or,
A fitting part or cylindrical shape that fits the end of a cylindrical leg provided at each vertex of the square without the protruding stripes and the grooved strip, the center of each side of the square, and the center of the square. The diameter of the leg may be made larger than the narrow width on the diagonal at five locations on the diagonal, four locations at each vertex, or one location at the center. Furthermore, even if the convex strips or the concave strips are continuous on the diagonal of the square, this continuous portion on the diagonal is a weak point against bending due to its shape. , a convex part or a concave part constituting a cylindrical fitting part or leg part with a large diameter,
By providing it on the diagonal line, weak points can be reinforced. Alternatively, the deck board 1 may be a synthetic resin molded product. Further, other embodiments can be constructed by combining the characteristic configurations of each embodiment.

As a result of the present invention having the above configuration, the following effects can be achieved.

(1) Even if the deck board is constructed from relatively thin plates, a narrow width on the diagonal of the square, near the center of each side of the square, and the center of the square are left inside the periphery of the square plate. A plurality of protrusions or grooves or both are provided in parallel to each side of the square, and each vertex of the square without the protrusions and grooves, the center of each side of the square, and the center of each side of the square. The center part has a fitting part into which the end of the cylindrical leg material having a diameter larger than the width of the narrow width on the diagonal line or a convex part or a concave part for forming the cylindrical leg part is provided. These structures maintain the rigidity of the deck board in the vertical, horizontal, and diagonal directions, making it possible to insert the fork from all directions (inserting the fork of a forklift from both the front, back, left, right, and diagonal directions), making it lightweight and easy to handle. A convenient pallet for cargo handling can be provided.

(2) Since the peripheral edge of the deck board is bent and formed into a curved surface, it is difficult to deform even when the tip of a fork hits it, and durability can be improved.

(3) Along with the rigidity-imparting protrusions (or grooves, etc.) and the peripheral curved surface portion, a protrusion or a recess for attaching the leg material or constituting the leg portion is formed on the plate material once or twice. Since they can be formed at the same time by pressing, the manufacturing cost of the deck board is low, and since special fittings for attaching leg members are not required, the manufacturing cost of the entire cargo handling pallet can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the first embodiment of the present invention, FIG. 2 is a longitudinal sectional front view thereof, FIG. 3 is a longitudinal sectional front view of main parts of the second embodiment of the invention, and FIG. FIG. 7 is a longitudinal sectional front view of main parts of the third embodiment. 1...Deck board, 3...Curved surface part, 4a, 4
b... Convex stripes or concave stripes, or both, that provide rigidity in both the vertical and horizontal directions, 9, 10, 10a... Convex portions or concave portions for attaching leg members or forming leg portions.

Claims (1)

[Claims] 1. The plate has a curved surface part bent around the periphery of the square, and inside the periphery of the square, there is a narrow width on the diagonal of the square, near the center of each side of the square, and at the center of the square. A plurality of protruding stripes or concave stripes, or both, are provided in parallel to each side of the square, and each vertex of the square without the protruding stripes and the concave stripes, the center of each side of the square, and In the center of the square, there is a fitting part into which the end of the cylindrical leg material having a diameter larger than the narrow width on the diagonal line or a convex part or a recessed part for forming the cylindrical leg part is provided. What is claimed is: 1. A pallet for cargo handling, characterized in that the pallet is formed to have a deck board.