JPH11236040A - Pallet for transportation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reinforce legs of a sheet-like pallet for transportation, which is called a skid pallet, prevent the legs from being projected into articles placed on the pallet at a lower end or breaking articles at a lower stage when the pallets are stacked in a multistage manner in a state that the articles are placed on each pallet, and design the pallet so as to be hardly deflected even in the case where the articles are heavy in weight when the pallet is lifted by inserting forks thereinto. SOLUTION: This pallet 11 of a synthetic resin has a plurality of legs 4, each forming a recess opening upward on its upper face side and a protrusion 3 protruding downward on its lower face side so as to be capable of being fitted into the recess, which are provided in a suspended state to a quadrangular sheet-like mounting part 1, and fork insertion pants 6 formed among the legs 4 on the underface side of the mounting part 1. A bottom face board 7, which is provided throughout the underfaces of the legs 4, is detachably mounted to the pallet 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-shaped transport pallet called a skid pallet.

[0002]

2. Description of the Related Art A sheet-shaped transport pallet called a skid pallet is conventionally known. This sheet-shaped transport pallet called skid pallet is formed by integrally forming polypropylene or recycled polypropylene by an injection molding method or a press molding method. When used, they are lifted up one by one by a forklift and used. For this reason, the pallet is provided with a plurality of legs, each of which has a concave portion having an upper surface opened upward and a downwardly projecting protrusion which can be fitted into the concave portion, on a rectangular plate-shaped mounting portion. Storage,
When transporting, lower the stacking height by fitting a protrusion that projects below the lower surface of the leg of the upper pallet into the recess that opens upward on the upper surface side of the leg of the lower pallet. I have to. In the pallet, the fork insertion portion is formed between the legs on the lower surface side of the mounting portion.

The sheet-like transport pallet called the skid pallet has a problem in that its strength is not so strong because of its structure. In addition, the object placed on the pallet is further placed on the object placed on the pallet.
In some cases, pallets on which objects are placed are stacked in multiple stages.In this case, the load on the upper object is concentrated only from the lower surface of the legs, and the load on the upper object is applied to the lower object. However, there is a problem that the load tends to dent or break due to the concentrated load applied thereto, and stable stacking is not possible.

Further, when a fork is inserted into a fork insertion portion formed between the legs and lifted, the load is liable to bend if the weight of the load is heavy. There is a problem that it is easy to be damaged or damaged.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and can reinforce the legs of a sheet-shaped transport pallet called a skid pallet. When stacking the objects placed on the pallet in a multi-stage manner, it is possible to prevent the legs from biting into the lower objects and damage the lower objects,
In addition, when the fork is inserted and lifted, it is difficult to bend even if the weight of the mounted object is heavy, and by removing the bottom board, a plurality of sheets can be stacked to reduce the bulk and stored and transported. It is an object of the present invention to provide a transport pallet that does not accidentally come off due to bending deformation in the front-rear direction and the left-right direction when the bottom board is mounted.

[0006]

In order to solve the above-mentioned problems, a transport pallet according to the present invention comprises a rectangular plate-shaped mounting portion 1 having a concave portion 2 having an upper surface opened upward and a lower surface having a concave portion 2. A plurality of leg portions 4 serving as projections 3 projecting downward that can be fitted into the pallet, and a pallet made of synthetic resin in which a fork insertion portion 6 is formed between the leg portions 4 on the lower surface side of the mounting portion 1. 11, a bottom board 7 installed between the lower surfaces of the leg portions 4 is detachably attached. By attaching the bottom board 7 erected between the lower surfaces of the legs 4 in this manner, the lower surface of the legs 4 is reinforced and the strength of the pallet 11 is improved. The pallet 11 can be prevented from bending by the bottom board 7 installed on the forklift. In particular, the fork of the forklift is inserted into the fork insertion portion 6 between the legs 4 so as to be orthogonal to the installation direction of the bottom board 7 at the portion where the bottom board 7 is installed. By inserting and lifting, the pallet 11 can be prevented from bending in the direction perpendicular to the fork. By removing the bottom board 7, the projection 3 projecting below the lower surface of the leg 4 of the upper pallet 11 is formed in the recess 2 opened above the upper surface of the leg 4 of the lower pallet 11. The stacking height can be reduced by fitting.

It is preferable that a bottom board 7 having a larger area than the lower surfaces of the legs 4 is detachably mounted on the lower surfaces of the plurality of legs 4 so as to bridge between the lower surfaces. With this configuration, the lower surface of the leg 4 is reinforced by the bottom board 7 having a larger area than the lower surface of the leg 4, thereby improving the strength of the pallet 11 and mounting the pallet 11. The load of the object placed on the part 1 can be dispersed and transmitted downward from the bottom board 7 having a large area, and the pallet 1
When the objects to be mounted are stacked in a multi-stage manner in a state where the objects are placed on the lower part 1, the legs 4 can be prevented from getting into the lower objects and the lower objects can be prevented from being damaged.

Further, holes 8 are provided in the lower surface of the plurality of legs 4, a plurality of fitting protrusions 9 are provided on the bottom board 7, and locking portions 1 are provided on both front and rear sides of one of the fitting protrusions 9.
0 is provided, locking portions 10 are provided on both left and right sides of the other fitting protrusions 9, and the plurality of fitting protrusions 9 provided on the bottom board 7 are fitted into the holes 8 on the lower surface of the plurality of legs 4. It is preferable that the stop portions 10 are respectively locked on the upper surface side of the hole 8. With this configuration, the bottom board 7 can be attached and detached with a simple configuration, and even if the pallet 11 bends in either the front-rear direction or the left-right direction, the locking by the locking portion 10 is careless. The bottom board 7 can be securely attached without being detached.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments shown in the accompanying drawings. The pallet 11 is a sheet-shaped pallet called a skid pallet, and is formed by integrally molding a synthetic resin such as polypropylene or recycled polypropylene by an injection molding method or a press molding method. As shown in FIGS. 11 to 16, the pallet 11 has a concave portion 2 having an upper surface opened upward and a lower surface fitted into the concave portion 2 in a square plate-shaped mounting portion 1 having a square or rectangular shape in plan view. Projection 3 projecting downward in a shape that allows
A plurality of legs 4 having the following shape are vertically and horizontally arranged in a plurality of columns and a plurality of rows. That is, the shape of the leg 4 becomes smaller as the shape in a plan view goes down, so that the projection 3 can be fitted into the recess 2. A hole 8 is provided at the center of the bottom of the concave portion 2 (that is, the lower surface of the leg portion 4), and support ribs 12 protrude from the bottom of the concave portion 2 at four positions in front, rear, left and right inside the concave portion 2. As shown in FIG. 9, the holes 8 of the pair of opposing support ribs 12 of the support ribs 12 are provided.
At the lower end of the side end of the side, there is provided a locking rib portion 13 which is inclined obliquely outward and upward so as to move away from the hole as it goes upward from the edge of the hole 8. An anti-rattle rib portion 14 is provided at an end on the inner wall side of the concave portion 2.

As described above, the holes 8 are provided in the lower surface of the plurality of legs 4, but any of the plurality of legs 4 arranged in the front-rear direction (or in the left-right direction). Hole 8 provided in
Are elongated holes elongated in the front-rear direction, and the holes 8 provided in the other leg portions 4 are elongated holes elongated in the left-right direction. FIG. 13 is a bottom view of the pallet 11, and the fork insertion portion 6 is formed between the legs 4 on the lower surface of the pallet 11.

The bottom board 7 used in the present invention is as shown in FIGS.
In the embodiment shown in the attached drawings, the area is wider than the lower surface of the synthetic resin, and it is constituted by an elongated plate made of a synthetic resin having a band shape in plan view, and a large number of reinforcing ribs 15 are integrally formed. On both sides of the long side, inclined portions 16 are inclined so that the side ends are lower. This bottom board 7
A plurality of fitting projections 9 project from the upper surface of the device through a gap in the longitudinal direction. A plurality of fitting projections 9
Are elongated in a direction parallel to the longitudinal direction of the bottom board 7 (that is, in the front-rear direction), and are elongated in a direction perpendicular to the longitudinal direction of the bottom board 7 (that is, in the left-right direction). A locking portion 10 protruding laterally is provided above the center of both long sides of the fitting projection 9.
Further, a narrow rib 17 having a width narrower than the short side is provided at the center of both short sides of the fitting projection 9. Here, when the fitting projection 9 is fitted into the hole 8 composed of a long hole,
As shown in FIG. 10, the long side portion of the fitting projection 9 comes into contact with the hole 8, but a gap 18 is formed between both sides of the narrow rib 17 and the inner surface of the hole 8. I have. That is, when the fitting projection 9 provided with the locking portion 10 protruding to the side is fitted into the hole 8 formed of a long hole, when the locking portion 10 passes through the hole 8, the hole 8 is formed at the gap 18.
Is bent so that the locking portion 10 can pass through the hole 8. When the locking portion 10 has passed, the edge of the hole 8 returns to its original shape, and is fitted as shown in FIGS. The protrusion 9 is fitted into the hole 8. And the locking part 10 is the hole 8
The engaging portion 10 is engaged with the inclined engaging rib portion 13 on the upper surface side of the hole 8 in a state where the projection 9 is fitted into the hole 8 through the lower surface portion of the leg portion 4. Leg 4
The bottom board 7 having a larger area than the above is detachably attached. In the embodiment shown in the accompanying drawings, the bottom board 7 has a band shape in a plan view, and the band-shaped bottom board 7 is erected and attached over the lower surfaces of the plurality of legs 4 arranged in a line in the front-rear direction. In this way, the front and rear bottom boards 7 are removably mounted in a plurality of rows (three rows in the embodiment) in the left-right direction.

When the bottom pallet 7 is not mounted on the pallet 11 when it is not used, as shown in FIG. 22, the lower pallet 11 of the empty pallet 11 is not used. The projections 3 projecting below the lower surfaces of the legs 4 of the empty pallets 11 in the upper stage are fitted into the concave portions 2 opened upward on the upper surface side and stacked (so-called nesting stacking). In this way, the height of the upper and lower stacks can be reduced to reduce the bulk, and the pallets 11 can be stored or transported in this state. Here, when the nesting is performed as shown in FIG. 22 as described above, the bottom surface of the protrusion 3 of the upper pallet 11 is placed on the support rib 12 in the concave portion 2 of the lower pallet 11. is there. At this time, the protrusion 3 of the upper pallet 11
A gap is formed between the outer surface of the pallet 11 and the inner surface of the concave portion 2 of the lower pallet 11, so that the upper and lower pallets 11
Is easy to separate, but this is the upper pallet 1
1 is likely to be shifted laterally with respect to the lower pallet 11, and by providing the anti-rattle rib portion 14 as described above, the outer surface of the lower end portion of the protrusion 3 of the upper pallet 11 is formed. A part thereof is supported by the anti-rattle rib portion 14 so as not to be laterally displaced, thereby preventing the rattle.

On the other hand, the pallet 11 is used with the bottom board 7 having a larger area than the lower surface of the leg 4 attached to the lower surface of the leg 4 of the pallet 11 as described above. The object A is placed on the placing part 1 of the pallet 11 on which the bottom board 7 is attached as described above.
The pallet 11 is lifted and moved by inserting the fork B of the forklift into the fork insertion portion 6. At this time, the pallet 11 is prevented from being bent by the bottom board 7 installed between the lower surfaces of the leg portions 4. It is.
In particular, as shown in FIG. 20, the fork B is inserted into the fork insertion portion 6 between the legs 4 so as to be orthogonal to the installation direction of the bottom board 7 at the portion where the bottom board 7 is installed, and the skid pallet is lifted. The above-mentioned bottom board 7 can prevent the sheet-shaped pallet 11 made of synthetic resin, which is referred to as a pallet, from bending in the direction perpendicular to the fork B as shown by the arrow in FIG. As a result, the pallet 11 does not bend and the mounted object A does not slide down or collapse even when the heavy mounted object A is mounted on the mounting portion 1 of the pallet 11. When the fork B is inserted into the fork insertion portion 6 between the legs 4 so as to be orthogonal to the direction in which the bottom board 7 is installed at the portion where the bottom board 7 is installed, the inclined portions 16 provided on the side portions of the bottom board 7 Serves as a guide so that the fork B can be smoothly inserted into the fork insertion portion 6 above the bottom board 7.

Further, one of the plurality of fitting projections 9 provided on the bottom board 7 is provided with locking portions 10 on both front and rear sides, and locking portions are provided on both left and right sides of the other fitting projections 9. 10, a plurality of fitting projections 9 provided on the bottom board 7 are fitted into the holes 8 on the lower surface of the plurality of legs 4, and each locking portion 10 is locked on the upper surface side of the hole 8. Therefore, even if the pallet 11 bends in any of the front-rear direction and the left-right direction, either the locking part 10 located in the front-rear direction or the locking part 10 located in the left-right direction is the same as the bending direction. Attempts to lock more strongly in the opposite direction, thereby reliably preventing the pallet 11 from bending and the bottom board 7 being accidentally detached.

FIG. 21 shows a state in which the pallets 11 on which the objects A are placed are stacked vertically in multiple stages.
In this case, the upper pallet 11 on which the object A is placed is placed on the object A which is placed on the lower pallet 11, and the upper pallet 11 is placed on the upper surface of the lower object A. 11 does not directly hit the lower surface of the leg 4, but rather hits the bottom board 7 having a larger area than the lower surface of the leg 4 attached to the lower surface of the leg 4.
From the wide bottom board 7 to the upper surface of the lower mounted object A, thereby concentrating on the narrow portion of the upper surface of the lower mounted object A and dispersing over a wide area without applying the upper load. As a result, the lower mounted object A does not dent or break, and since the lower mounted object A does not dent or break in this way, the upper pallet 11 There is no danger of slipping or slipping.

When the pallet 11 has been used, the bottom board 7 is removed from the pallet 11 and, as described above,
Only the pallets 11 are inserted into the upper and lower stages to store or transport the pallets 11 in a reduced bulk.

[0017]

According to the first aspect of the present invention, as described above, the upper surface side of the rectangular plate-shaped mounting portion may be a concave portion opened upward and the lower surface side may be fitted into the concave portion. In a synthetic resin pallet in which a plurality of legs which are protruded downward and which are protruded downward, and a fork insertion portion is formed between the legs on the lower surface side of the mounting portion, between the lower surfaces of the legs. The bottom board to be installed is detachably attached, so the bottom board can reinforce the lower surface of the legs, and the bottom board installed between the lower surfaces of the legs prevents the pallet from bending. In particular, in the part where the bottom board is installed, insert the fork of the forklift into the fork insertion part between the legs so as to be orthogonal to the installation direction of the bottom board, and lift the pallet in the direction orthogonal to the fork. It can be prevented from flexing by There are breakage or slip off the mounting object which is placed on a pallet while preventing the pallet, in which the can be prevented to collapsing. In addition, by removing the bottom board, the protrusion protruding below the lower surface of the leg of the upper pallet is fitted into the recess opened above the upper surface of the leg of the lower pallet, and the stacking height is increased. The pallet can be made low, and the bulk can be reduced when storing and transporting the pallets.

According to the second aspect of the present invention, in addition to the effects of the first aspect, a bottom board having a larger area than the lower surfaces of the legs is provided on the lower surfaces of the plurality of legs. Since it is detachably attached so as to bridge between each lower part,
When a bottom board with a larger area than the lower surface of the leg is installed, the lower surface of the leg is further reinforced to improve the strength as a pallet, and even if the object is heavy, it is stable. In addition, the load of the object placed on the pallet rest part can be distributed from the bottom board with a large area and transmitted downward. In this case, the lower pallet does not cut into the lower pallet, the lower pallet does not break, and the upper pallet does not slide, slip, or collapse.

According to a third aspect of the present invention, in addition to the effects of the second aspect, holes are provided in the lower surfaces of the plurality of legs, and a plurality of fitting protrusions are provided on the bottom board. A locking portion is provided on both front and rear sides of one of the fitting protrusions, and a locking portion is provided on both left and right sides of the other fitting protrusion, and the plurality of fitting protrusions provided on the bottom board are provided on the lower surface of a plurality of legs. The bottom of the board can be attached and detached with a simple structure, and the pallet tries to bend in either the front-rear direction or the left-right direction. Also, the bottom board can be securely attached without releasing the locking by the locking portion.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a bottom board is attached to a pallet of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a plan view of the same.

FIG. 5 is a cross-sectional view taken along line AA of FIG.

FIG. 6 is a sectional view taken along line BB of FIG.

FIG. 7 is a cross-sectional view taken along the line CC of FIG. 2;

FIG. 8 is a sectional view taken along line DD of FIG.

FIG. 9 is an enlarged sectional view of a main part of the above.

FIG. 10 is an enlarged plan view of a main part of the above.

FIG. 11 is a front view of the pallet.

FIG. 12 is a side view of the same.

FIG. 13 is a bottom view of the above.

FIG. 14 is a plan view of the same.

FIG. 15 is a sectional view taken along line EE in FIG. 14 of the above.

FIG. 16 is a sectional view taken along line FF of FIG. 11 of the above.

FIG. 17 is a plan view of the bottom board of the above.

FIG. 18 is a cutaway side view of the same.

FIG. 19 is a cutaway front view of the same.

FIG. 20 is an explanatory view showing a state in which the object is placed on a pallet to which the bottom board of the present invention is attached and lifted by a fork.

FIG. 21 is an explanatory view of a state in which objects are placed on a pallet to which the bottom board of the present invention is attached and stacked in multiple stages.

FIG. 22 is a cross-sectional view showing a state where the pallets from which the bottom board of the present invention has been removed are nested.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Placement part 2 Concave part 3 Projection part 4 Leg part 6 Fork insertion part 7 Bottom board 8 Hole 9 Fitting projection part 10 Locking part 11 Pallet

Claims (3)

[Claims] 1. A plurality of legs, each of which has a concave portion with an upper surface opened upward and a downwardly projecting protrusion which can be fitted into the concave portion, is vertically provided on a square plate-like mounting portion; A pallet made of a synthetic resin having a fork insertion portion formed between legs on the lower surface side of the mounting portion, wherein a bottom board installed between the lower portions of the legs is detachably mounted. palette. 2. A bottom board having a larger area than the lower surfaces of the legs is detachably attached to the lower surfaces of the plurality of legs so as to bridge between the lower surfaces. Pallets for transportation. 3. A plurality of holes are provided in the lower surface of the plurality of legs, a plurality of fitting projections are provided on the bottom board, locking portions are provided on both front and rear sides of one of the fitting projections, and the other fitting projections are provided. Locking parts are provided on both left and right sides of the baseboard, and a plurality of fitting projections provided on the bottom board are fitted into holes in the lower part of the plurality of legs, and each locking part is locked on the upper side of the hole. The transport pallet according to claim 2, wherein: