JP2003095269A - Flat pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the possibility of cargo collapse by preventing or suppressing the slippage between a pallet and a cargo. SOLUTION: A pallet is provided with slender longitudinal members (3) composed of a metal in parallel with each other, and a plurality of slender transversal members (2) composed of a metal in parallel with each other which are almost orthogonal to and placed under the slender longitudinal members (3) and fitted thereto. Antislip members 11, 12 having uneven portions are fitted to at least the upper surface of the longitudinal member (3) or the lower surface of the transversal member (2) through, for example, welding. The antislip members (11, 12), formed of a metal material, may be fitted to the longitudinal member (3) or the transversal member (2) through welding. The combination of the longitudinal members and the transversal members is generally rectangular, and the antislip members may be arranged on the four corners.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a flat pallet.

[0002]

2. Description of the Related Art FIG. 5 is an overall perspective view of a conventional flat pallet (hereinafter simply referred to as pallet). As shown, the pallet has a plurality of elongated cross members 2 parallel to each other and a plurality of elongated longitudinal members 3 (also called top deck board members) 3 parallel to each other. Each of the cross members 2 is an upper girder plate member 4,
It has a lower girder plate member 5 and a plurality of leg members 6. Each of the vertical member 3, the upper girder plate member 4, and the lower girder plate member 5 is shown in FIG.
It is formed by galvanizing the steel corrugated member CP shown in FIG.

The member shown in FIG. 6 is a corrugated member having a substantially rectangular wave-shaped cross section, and accordingly has appropriate rigidity. A strip-shaped or strip-shaped steel plate has about 20 steps of roll forming. It is manufactured by performing.

In order to manufacture the pallet shown in FIG. 5, one upper girder plate member 4 and one lower girder plate member 5 are used, respectively.
A plurality of (four in the illustrated example) leg members 6 are fixed by welding to assemble a plurality of horizontal members 2. Next, a plurality (three in the illustrated example) of horizontal members 2 are arranged in parallel with each other,
A plurality of (5 in the illustrated example) vertical members 3 are arranged on the upper surface in parallel to each other and in a direction orthogonal to the horizontal member 2 and fixed by welding. Specifically, the vertical member 3 is the horizontal member 2
Of the upper girder plate member 4 is welded.

FIG. 7 shows how the leftmost portion of the foremost cross member in FIG. 5 is welded. As shown, the vertical member 3 is fixed to the upper girder plate member 4 by welding 7.

FIG. 8 is a perspective view showing a state of packing a general cathode ray tube using a pallet. In the figure, 8 is a cathode ray tube, 9 is a styrofoam cushion material that holds the cathode ray tube 8, and 10 is a polyethylene stretch film that covers the packing side surface and fixes the cushion 9.

In the packing method, the cushion material 9 is placed on the pallet 1 and the cathode ray tubes 8 are loaded in a predetermined number of recesses provided in the cushion material 9. Further, the cushion material 9 is placed, and the cathode ray tube 8 is loaded thereon. The stacking of the cushion material 9 and the space 8 between browns is repeated up to a predetermined number of steps, the cushion material 9 is placed on the uppermost portion, and then the packing side surface is fixed by the stretch film 10 to complete the process. The completed packaging is shipped by transportation such as trucks and containers. The height of the packaging is designed so that the space for loading the transportation machine is barely considered in consideration of the loading efficiency on the transportation machine such as a truck or a container. For example, in the case of a cathode ray tube, as shown in an example in FIG. 9, it is often designed to stack the packages in two stages and load the packages on a transportation system.

[0008]

When transporting a package using a conventional pallet, there are the following problems. That is,
As described above, the metal member CP used for the upper surface and the lower surface of the conventional pallet has a rectangular wave cross section and has a groove extending in the vertical direction, but the surface in the direction parallel to the groove (vertical direction). The coefficient of friction (particularly the coefficient of friction with the cushion material 9) is small.

Therefore, due to acceleration and vibration during transportation,
As shown in 0, the lower girder plate material 5 of the pallet 1 in the upper packaging
And slippage occurs between the uppermost cushion material 9 of the lower packaging, and as shown in FIG.
The slippage occurs between the upper surface of the sheet and the cushion material 9 placed on the sheet, and the luggage shifts. If this deviation becomes large, the load may collapse and the product may be damaged.

The present invention has been made to solve the above problems, and it is an object of the present invention to prevent or suppress slippage between a pallet and a load, thereby reducing the possibility of load collapse. .

[0011]

DISCLOSURE OF THE INVENTION The present invention is directed to a plurality of elongated metal cross members that are parallel to each other, and a plurality of cross members that are substantially orthogonal to the cross members and are positioned above the cross members and fixed to the cross members. The present invention provides a flat pallet having elongated metal vertical members that are parallel to each other and a non-slip member having an uneven portion on at least one of the upper surface of the vertical member and the lower surface of the horizontal member.

The vertical member and the horizontal member are fixed to each other by welding, the anti-slip member is made of a metal material, and is fixed to the vertical member or the horizontal member by welding. May be.

The combination of the vertical members and the horizontal members has a generally rectangular shape when viewed from above, and the anti-slip members are fixed to the vertical members or the horizontal members at the four corners. May be.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1. FIG. 1 is an exploded perspective view of a flat pallet 1 according to the first embodiment of the present invention. As shown, this flat pallet 1 is generally the same as the flat pallet 1 shown in FIG. That is, the pallet has a plurality of elongated cross members 2 parallel to each other and a plurality of elongated longitudinal members 3 parallel to each other. Each of the cross members 2 has an upper girder plate member 4, a lower girder plate member 5, and a plurality of leg members 6 which are arranged at intervals from each other and are interposed between the upper girder plate member 4 and the lower girder plate member 5. . Each of the vertical member 3, the upper girder plate member 4 and the lower girder plate member 5 is formed by galvanizing the steel corrugated member CP shown in FIG. 6, respectively.

The member shown in FIG. 6 is a corrugated member having a substantially rectangular cross section and has an appropriate rigidity by this, and a roll forming of about 20 steps is performed on a strip-shaped or strip-shaped steel plate. It is manufactured by performing.

In order to manufacture the pallet shown in FIG. 1, one upper girder plate member 4 and one lower girder plate member 5 are used, respectively.
A plurality of (four in the illustrated example) leg members 6 are fixed by welding to assemble a plurality of horizontal members 2. Next, a plurality (three in the illustrated example) of horizontal members 2 are arranged in parallel with each other,
A plurality (five in the illustrated example) of vertical members 3 are arranged on the upper surface in parallel to each other and in a direction orthogonal to the horizontal members 2 and fixed by welding. Specifically, the vertical member 3 is welded to the upper girder plate member 4 of the horizontal member 2. As a result, the combination of the plurality of vertical members 3 and the horizontal members 2 has a rectangular shape as a whole when viewed from above, and the vertical members 3 and the horizontal members 2 are arranged so as to form a lattice.

FIG. 2 shows a state of welding at the left end portion of the foremost cross member in FIG. As shown, the vertical member 3 is fixed to the upper girder plate member 4 by welding 7.

The flat pellet 1 shown in FIG. 1 is provided with a plurality of anti-slip members 11 in addition to the above structure. The anti-slip members 11 are fixed to the four corners on the upper surface and the lower surface of the pallet 1, respectively. That is, it is fixed to the upper surface of the vertical member 3 and the lower surface of the lower girder plate member 5 of the horizontal member 2 at the four corners of the generally rectangular assembly composed of the vertical member 3 and the horizontal member 2. One of the fixing methods is shown in FIG.

As shown in FIG. 3, the anti-slip member 11 has a convex portion 11a and a portion (concave portion) 11b other than the convex portion 11a.
It is fixed with the convex portion 11a facing upward. The same applies to the method of fixing the anti-slip members 11 at the other three corners of the upper surface. At the four corners of the lower surface, similar anti-slip members 11 are fixed to the lower girder plate member 5 in the same manner with the convex portions 11a facing downward.

The non-slip member 11 is, as shown in FIG.
It is formed by molding a non-metal material such as plastic or by punching and bending a metal material, and the height of the convex portion is, for example, about 1 to 5 mm.

The illustrated anti-slip member 11 has a generally rectangular flat portion 11b (constituting a recess) and a flat portion 11b.
Set of protrusions 11aa along the four edges (sides) of the same and four sets of protrusions 11ab, 11ac, 11ad, 11a formed inside the flat portion 11b, each of which extends along the four sides of the substantially rectangular shape.
with e. Protrusions 11aa, 11ab, 11ac, 1
The protrusions 11a of the anti-slip member 11 of the present embodiment are configured by 1ad and 11ae.

A non-slip member 1 fixed to the vertical member 3
1 is arranged such that its width is substantially equal to the width of the vertical member 3 and its longitudinal direction coincides with the longitudinal direction of the vertical member 3. On the other hand, the anti-slip member 11 fixed to the cross member 2 is arranged such that its width is substantially equal to the width of the cross member 2 and its longitudinal direction coincides with the longitudinal direction of the cross member 2. In the illustrated example, the width of the cross member 2 and the width of the length member 3 are equal to each other, so that the non-slip members 11 having the same shape can be used both for fixing to the length member 3 and for fixing to the cross member 2. By doing so, the anti-slip member 11 as a component can be shared, the manufacturing cost can be reduced, and the inventory management can be facilitated.

2 and 3, the protrusions 11ab, 11ac, 11ad, 11a provided inside the flat portion 11b are shown.
Although e is a rectangle, other shapes such as a circle, an ellipse, a diamond, and a triangle may be used instead, and the number and arrangement of the protrusions are not limited to those shown in the drawings.

The method of using the pallet 1 will be described below. The packing method is the same as the conventional one, in which the cushion material 9 is placed on the pallet 1 and the cathode ray tubes 8 are loaded in a predetermined number of recesses provided in the cushion material 9. The cushion material 9 and the cathode ray tube 8 are repeatedly loaded up to a predetermined number of steps, the cushion material 9 is placed on the uppermost portion, and then the packing side surface is fixed by the stretch film 10 to complete the process. The completed packaging is transported by transportation such as trucks and containers.

In the case of transporting the packages, as in the conventional case, in the case of the cathode ray tube, the packages are usually stacked in two stages as shown in FIG. 9 and loaded on the transportation means.
Since the frictional resistance of the pallet surface increases due to the effect of the above, even if there is acceleration or vibration generated during transportation, it may occur between the lower surface of the pallet 1 and the upper surface of the cushion material 9 at the uppermost part of the package located below the pallet 1. As a result, slippage does not occur between the upper surface of the pallet 1 and the lower surface of the cushion material 9 located above the pallet 1, and thus the load shift can be prevented and the product can be transported safely.

Embodiment 2. In the first embodiment described above,
The non-slip member 11 is formed by molding a non-metal material such as plastic or by punching and bending a metal material, and is fixed to the vertical member 3 or the lower girder plate member 5 by adhesion or fitting. However, the non-slip member 12 of the second embodiment is formed by punching and bending a metal material, and is fixed to the vertical member 3 or the lower girder plate member 4 by welding 13 as shown in FIG. Has been done. For welding the anti-slip member 12, the upper girder plate material 4
Also, the same welding device as that used for welding the lower girder plate member 5 and the leg member 6 and for welding the vertical member 3 and the horizontal member 2 can be used.

Except for the points described above, the flat pallet of the second embodiment is the same as the flat pallet of the first embodiment, and the method of using the flat pallet of the second embodiment is also the same as that of the first embodiment. The flat pallet of the second embodiment has the same effect as the flat pallet of the first embodiment, and the anti-slip member 12 is also fixed by welding. It has the additional effect that functional pallets can be produced.

In the first and second embodiments, the anti-slip member is provided on both the upper surface and the lower surface of the pallet, but it may be provided on only one of the upper surface and the lower surface.

Further, in the above-mentioned first and second embodiments, the anti-slip members are provided at the four corners of the assembly of the vertical member and the horizontal member, which are substantially rectangular. However, the shape of the assembly of the vertical member and the horizontal member. Is not limited to a rectangle, and the installation locations of the anti-slip members are not limited to the four corners.

[0031]

According to the invention of claim 1, since the anti-slip member can increase the frictional resistance between the pallet and the one positioned above or below the pallet, the slip is prevented or suppressed. Therefore, the stacked packages can be prevented or suppressed from slipping due to acceleration or vibration during transportation, and the collapse of loads during transportation can be prevented.

According to the invention of claim 2, since the vertical member and the horizontal member are fixed by welding, and the anti-slip member is also fixed by welding, new manufacturing equipment is added. Without doing so, it is possible to manufacture a pallet having a desired function.

According to the third aspect of the present invention, since the anti-slip members are fixed to the four corners of the rectangular assembly, even when the anti-slip member is relatively small, it is stable when loaded. Good property.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state before assembly of a flat pallet according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged perspective view of the flat pallet according to the first embodiment of the present invention.

FIG. 3 is a perspective view of an anti-slip member mounted on the flat pallet according to the first embodiment of the present invention.

FIG. 4 is a partially enlarged perspective view of a flat pallet according to a second embodiment of the present invention.

FIG. 5 is a perspective view of a conventional flat pallet.

FIG. 6 is a partial perspective view of a corrugated member that constitutes a flat pallet.

FIG. 7 is a perspective view of an assembly portion of a corrugated member of a conventional flat pallet.

FIG. 8 is a perspective view of a CRT packaging using a flat pallet.

FIG. 9 is a perspective view showing a loading method for transporting packages using the flat pallet of the present invention.

FIG. 10 is a diagram showing an example of a load shift that occurs during transportation in a conventional packing using flat pallets.

FIG. 11 is a diagram showing another example of the load shift occurring during transportation in the conventional packaging using flat pallets.

[Explanation of symbols]

1 flat pallet, 2 horizontal members, 3 vertical members, 4 upper girder plate members, 5 lower girder plate members, 6 leg members, 7 welded parts, 8 cathode ray tubes, 9 cushion materials, 10 stretch film, 11 plastic anti-slip members, 12 Metal anti-slip member, 13 weld,
CP corrugated member.

Claims (3)

[Claims] 1. A plurality of parallel elongated metal transverse members and a plurality of parallel elongated metal vertical members which are substantially orthogonal to the transverse member and are located above the transverse members and fixed to the transverse member. A flat pallet having a material and a non-slip member having an uneven portion on at least one of the upper surface of the vertical material and the lower surface of the horizontal material. 2. The vertical member and the horizontal member are fixed to each other by welding, the anti-slip member is made of a metal material, and fixed to the vertical member or the horizontal member by welding. The flat pallet according to claim 1, wherein: 3. The combination of the vertical members and the horizontal members has a generally rectangular shape as viewed from above, and the anti-slip members are fixed to the vertical members or the horizontal members at the four corners. The flat pallet according to claim 1, wherein: