JPH1159678A - Pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a pallet itself movable to allow it to be easily moved with objects to be carried mounted by placing caster members rotating vertically at predetermined portions of at least four corners on a lower face of a synthetic resin pallet body. SOLUTION: Both substrates 4, 5 having a plate-like part 6 at four corners 8 and other parts formed in grids and equipped with notches 7 at predetermined intervals on standing parts 2, 3 of four peripheral rims are unified by aligning the notches 7 with each other and by welding A between the standing parts 2, 3, thereby forming a pallet body 1 having an opening 10 for inserting a fork. Caster members 20 which can rotate horizontally and vertically are attached respectively to the lower plate-like parts 6 at the four corners 8. Thus the pallet can be moved by a fork lift and the pallet can easily move even in a small space where the fork lift cannot be used but the pallet can enter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pallet,
In particular, it relates to a pallet that can be easily moved by an operator.

[0002]

2. Description of the Related Art In general, goods are not transported directly but are transported using pallets. That is, it is because loading efficiency is improved by mounting a transported object on the upper surface of a rectangular flat substrate called a pallet, transporting the pallet itself with a forklift, and moving the object mounted on the upper surface during the transport.

[0003] However, it is good to move the pallet with the goods loaded on it when the place is large, but when the place is small, the forklift cannot move in and the pallet can be moved. Therefore, the use of pallets was not suitable in narrow spaces.

In order to solve this, there is a caster table. The caster base has cross-shaped legs, and casters are attached to lower surfaces of the distal ends of the legs so as to be movable. At the upper end of each leg, there is provided a pressing plate that contacts the side surface of the pallet. Therefore, the pallet can be placed on the upper surface of each leg, and the holding plate comes into contact with the side surface of the pallet, so that the pallet moves to the side and cannot be detached from the caster table. . Thus, the pallet is placed on the upper surface of the caster table, and the load is placed on the pallet combined with the caster table, so that the load placed on the pallet can be easily moved. .

However, since the caster table itself is made of steel, it is heavy and the caster table is located on the side of the pallet, so that there is a possibility that an operator may be caught on the caster table. Had the problem of being dangerous. In addition, when the pallet is placed on the caster table, it is very bulky, and a large storage space is required. For this reason, the pallet is separated from the caster table when it is not necessary to move the pallet. There is a problem that the mounting and detaching operations to and from the device are complicated. Further, there is a problem that the caster table itself is expensive.

On the other hand, in recent years, a pair of resin substrates each having a substrate, side plates standing upright on the four peripheral edges of the substrate, and a plurality of reinforcing ribs standing upright on the upper surface of the substrate. A pallet is used in which side plates on the four peripheral edges are welded and integrated to form a pallet. In determining the shapes and positions of the ribs, the ribs are determined in consideration of the fact that the pallet itself is not damaged when a conveyed object is mounted on the upper surface of the pallet.Currently, various rib shapes and positions are determined. Has been adopted.

Therefore, when a hole for mounting is simply formed on the lower surface of a resin pallet to mount a caster, the strength of the pallet is reduced by the presence of the hole, and the pallet is damaged when a load is mounted. There is a problem that the possibility of performing is high. Then, the inventor of the present invention, as a result of various trial manufactures and examinations, found that drilling a mounting hole at a predetermined location had almost no effect on the strength of the pallet.

A first object of the present invention is to provide a pallet which can be easily moved with a conveyed object mounted thereon by making the pallet itself movable. A second object of the present invention is to provide a pallet that can move the pallet itself and can be significantly reduced in size as compared with a case using a caster stand. A third object of the present invention is to make the pallet itself movable, there is no part protruding outward, and there is no possibility of the worker getting caught, and the pallet is safe.
An object of the present invention is to provide a pallet that can be manufactured at low cost. A fourth object of the present invention is to provide a pallet which can move the pallet itself and is not likely to be damaged even if a load is mounted on the upper surface.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a flat pallet body made of a resin at least at four corners on the lower surface of the pallet body and where no reinforcing portion such as a rib exists inside the pallet body. A caster member having casters rotatable in the vertical direction is provided, and the pallet main body can be moved by the casters. The caster member is integrally attached to the pallet body in advance when the substrate portion, which is an attachment portion to the pallet body, is formed at the time of molding the pallet body, and the caster member is a flat pallet when viewed from above. Is located inside.

Further, according to the present invention, a caster member is provided at least at four corners on the lower surface of a resin-made pallet body having a flat plate shape and where no reinforcing portion such as a rib exists inside the pallet body. The pallet body corresponding to the caster member has a configuration in which a concave portion having a size that allows the caster member to be located is formed on the upper surface of the pallet body. The caster member includes a substrate portion and a caster portion attached to the substrate portion and having the caster rotatable in the horizontal direction and capable of changing its direction. It has a configuration with a reinforcing plate for mounting on a vehicle.

[0011]

By adopting the above-mentioned means, the pallet is formed by disposing a vertically rotating caster member at a predetermined position in at least four corners of the lower surface of the synthetic resin pallet body. The pallet can be easily moved simply by pushing or pulling with the load on the upper surface,
Depending on the weight of the conveyed product, it is possible to prevent the pallet from being damaged. In addition, since a concave portion having a size in which the caster member can be located is provided on the upper surface of the pallet body corresponding to the caster member, even when the pallets are stacked, each caster member does not become an obstacle, and is sequentially stacked with the thickness of the pallet body. be able to.

[0012]

Embodiments of the present invention shown in the drawings will be described below. 1 to 4 show an embodiment of a pallet X according to the present invention. The pallet body 1 shown here is made of a general synthetic resin. That is, the synthetic resin pallet main body 1 has a pair of upper and lower substrates 4 and 5 in which upright portions 2 and 3 are integrally formed on the four peripheral edges of the plate-like portion.

Each of the plate-like portions 6 of the pair of substrates 4 and 5 has a flat plate shape at four corners 8, and the other portions 9 are formed in a lattice shape. Also, the upright portions of the four peripheral edges are notched at predetermined intervals.
When the raised portions 2 and 3 of the substrates 4 and 5 are aligned with each other, the notches 7 and 7 are aligned with each other, so that the opening 10 is formed.
Is formed. Therefore, an opening 10 for inserting a fork of a forklift is formed on the side of the pallet body 1.

Further, each of the plate-like portions 6, 6 is provided with a plurality of ribs (not shown), which are reinforcing portions that come into contact with the upper surface of the fork inserted into the opening portion 10, and the reinforcing ribs provide The strength of the pallet main body 1 with respect to the load mounted on the upper surface thereof is increased. As shown in FIG. 8, in a general pallet body, ribs 11 are provided at four corners 8 of each of the plate-shaped portions 6, 6 so as to face the upright portions 2, 3, and the adjacent upright portions are provided. 2, 3 and rib 11
Thus, a chamber is formed between the upper and lower plate-shaped portions 6. As a result of various studies, it has been found that even if the mounting holes are formed in each of the plate portions 6 forming the chamber, the strength of the pallet body 1 is hardly affected. did.

Therefore, as shown in FIG. 1, the pair of substrates 4 and 5 formed as described above is
When the erected parts 2 and 3 are welded together in a state where they are aligned with each other, an opening 10 for inserting a fork of a forklift is formed on the side of the pallet body 1 thus formed. Have been.

On the other hand, the four corners 8 of the lower surface, that is, the lower plate-like portion 6 of the upper and lower plate-like portions 6 forming a chamber together with the adjacent upright portions 2 and 3 and the ribs 11 and 11 are respectively shown in FIG. The caster member 20 is attached as shown in FIG. As shown in FIG. 3, the caster member 20 includes a substrate 22 having mounting holes 21 at four corners, an arm 23 rotatable in a direction perpendicular to the substrate 22, and an arm 23. And a caster 24 which is attached to and is rotatable in the vertical direction. That is, this caster member 20 is
Has the function of allowing the casters 24 to rotate in the horizontal and vertical directions.

The caster member 20 is mounted on the pallet body 1
In order to mount the pallet body 1, mounting holes 6a are provided in the corners 8 of the plate-like portion 6 of the lower substrate 4 constituting the pallet body 1, and the corners 8 of the plate-like portion 6 of the upper substrate 5 are provided with the lower holes. Mounting hole 6 for substrate 4
A hole 6b corresponding to a is provided. Then, a bolt 25 that penetrates through the mounting hole 21 of the substrate portion 22 of the caster member 20 is inserted into the mounting hole 6 a provided on the lower substrate 4, and the bolt 25 is inserted from the hole 6 b provided on the upper substrate 5. The washer 26 and the nut 27 can be easily fixed by screwing (see FIG. 8).

If the holes 6b formed in the upper substrate 5 are sealed with a seal or the like after the mounting, dust can be prevented from entering and accumulating in the room formed inside the pallet body 1. In addition, even if the caster member 20 is mounted by providing the mounting holes 6a and 6b at these locations on the upper and lower substrates 4, 5, the pallet main body 1 can be mounted with almost no reduction in strength.

Further, in the one shown in FIG. 10, the hole 6b provided in the corner 8 of the plate-like portion 6 of the upper substrate 5 is formed by a rectangular opening. Since the rectangular hole 6b is located at the plate-like portion 6 constituting the chamber, the strength of the pallet body 1 is not reduced. When the hole 6b has a rectangular opening, dust and the like can be easily taken out.

The caster member 2 shown in FIG.
0 are provided only at two adjacent corners of the four corners on the lower surface, and the other two corners are fixed to the substrate 22 and the substrate 22 as shown in FIGS. 8 and 10. An arm 23 and a caster 24 attached to the arm 23 and rotatable in the vertical direction, that is, a function in which the caster 24 can rotate only in the vertical direction with respect to the substrate 22. May be provided.

If the area of the substrate portion 22 of the caster member 20 is small and a large load acts on the conveyed object and the strength of the pallet X is uncertain, as shown in FIG. A reinforcing plate 28 to which the portion 22 can be attached is used. The reinforcing plate 28 is screwed to the pallet body 1 and the reinforcing plate 28 is attached to the caster member 2.
By attaching the 0 substrate portion 22, anxiety about strength can be eliminated. Therefore, in this case, the reinforcing plate 2
Reference numeral 8 denotes a part of the substrate portion 22 of the caster member 20.

The pallet X constructed as described above can be moved by a forklift with a load mounted on the upper surface similarly to a general pallet without a caster member, and the caster member can be mounted on the lower surface. Since the pallet 20 is provided, the pallet can be easily moved by an operator. Particularly, even in a narrow place where a forklift cannot enter, only the width of the pallet body can be easily moved by the operator. Can be.

In addition, as described above, sufficient strength can be secured without weakening the strength of the pallet body, and the base plate 22 and the reinforcing plate 2 of the caster member 20 can be secured.
If the position 8 is located inside the peripheral edge, there is no danger that the worker may get caught and get hurt. Further, the lower substrate 4 constituting the pallet body 1
If the reinforcing plate 28 is integrally molded in a buried state in advance, the assembling work is easy.

FIGS. 5 to 7 show another embodiment of the pallet according to the present invention. The pallet main body 1 is the same as that described above, and a detailed description thereof will be omitted. In this embodiment, the reinforcing plate 30 attached to the caster member 20 for the reinforcement is formed in an L shape.
That is, one side of the rectangular plate is raised and the reinforcing plate 30 is raised.
And a reinforcing plate 30 is attached to the lower surface of the pallet body 1 so that the upright portion of the pallet contacts the side of the pallet body 1.
The mounting position and mounting method, and the function of the caster member 20 are the same as those in the above embodiment.

FIG. 9 shows that a plurality of pallets X having the above-described configuration are stacked. Since the caster members 20 are provided at the four corners 8 on the lower surface as described above, 45 By shifting, a plurality of pallets X, X,... Can be stacked.

Further, as shown in FIG. 10, recesses in which the caster members 20 can be located at the four corners 8 on the upper surface of the pallet body 1 (in the figure, a rectangular hole 6b is opened in the upper substrate 5 so that the pallet body can be opened). 1 is formed with a concave portion.
, A plurality of pallets X, X,... Can be stacked without any shift. If the holes 6b are formed in this way, the washer 26 and the nut 27 can be stacked.
Is also very easy to insert.

In the above and the above embodiments, the pallet body is formed by welding a pair of upper and lower substrates. However, the present invention is not limited to this. Even if there is, it is good if it is made of synthetic resin.

[0028]

According to the present invention, as described above, the pallet itself can be moved. Therefore, the pallet can be easily moved by the worker with the load mounted thereon. If the pallet can be entered, it can be moved. Further, since the caster member is directly attached to the pallet, the whole can be made smaller and lighter than a conventional pallet placed on the caster base as in the prior art. In addition, since the caster member is mounted at a location where there is no risk of weakening the strength of the pallet body, there is no danger of damage even if a load of the same weight as the pallet without the caster member is mounted. Furthermore, when unnecessary, multiple items can be stacked, so that a large storage space is not required, and since the pallet has no protruding parts, there is no risk of workers getting caught and it is safe. In addition, since the entire structure has a simple structure, it has an effect that it can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

FIG. 2 is a schematic view showing a part of four peripheral edges of a lower surface of the one shown in FIG.

FIG. 3 is a schematic view showing a caster member attached to the lower surface of the one shown in FIG.

FIG. 4 is a schematic view showing another caster member.

FIG. 5 is a schematic view showing another embodiment of the present invention.

FIG. 6 is a schematic view showing a part of four peripheral portions on the lower surface of the one shown in FIG. 5;

FIG. 7 is a schematic view showing the lower surface of the one shown in FIG. 5;

FIG. 8 is a schematic cross-sectional view showing a mounting position of a caster member shown in FIGS. 1 and 5;

FIG. 9 is an explanatory diagram illustrating a state in which a plurality of pallets are stacked.

FIG. 10 is a schematic cross-sectional view showing a peripheral portion of a pallet main body and a caster member attached to the peripheral portion which is different from the above embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pallet main body 2, 3 ... Standing part 4 ... Lower board 5 ... Upper board 6 ... Plate-shaped part 6a ... Mounting hole 6b ... Hole 7 ... Notch 8 ... Corner 9 ... Other parts 10... Opening 11. Rib 20... Caster member 21... Mounting hole 22... Board part 23... Arm part 24... Caster 25. 28, 30 Reinforcement plate A: Welding X: Pallet

Claims (5)

[Claims] A caster rotatable in a vertical direction is provided at least at four corners of a lower surface of a resin-made pallet body having a flat plate shape and at a position where a reinforcing portion such as a rib does not exist inside the pallet body. Arrange the caster members,
A pallet, wherein the pallet body is movable by a caster. 2. The pallet according to claim 1, wherein the caster member is integrally attached to the pallet body in advance when the substrate portion, which is an attachment portion for the pallet, is formed when the pallet body is formed. 3. The pallet according to claim 1, wherein the caster member is located inside the flat pallet when viewed from above. 4. A caster member is provided at least at four corners on the lower surface of a resin-made pallet body having a flat plate shape and at a location where no reinforcing portion such as a rib exists inside the pallet body. A pallet, wherein a concave portion having a size in which a caster member can be located is formed on an upper surface of a pallet body corresponding to the member. 5. The caster member includes a substrate portion, a caster portion attached to the substrate portion, rotatable in a horizontal direction and freely changing the direction, and further including a caster portion having the caster. 5. The pallet according to claim 1, further comprising a reinforcing plate for attaching the substrate to the pallet body.