JP7086593B2 - palette - Google Patents

Description

The present invention relates to a pallet made of foamed resin such as styrofoam, which is used for transporting cargo using a forklift, a hand lift, or the like.

Conventionally, various pallets have been widely used as a loading platform when carrying luggage by a forklift, a hand lift, or the like. For example, when transporting luggage by a forklift or the like at a distribution site, the luggage is loaded on the pallet mounting surface, a fork such as a forklift is inserted into the fork insertion port on the side of the pallet, and the pallet is lifted to a predetermined height position. Will be raised. Then, after driving the forklift or the like to transport the pallet to the destination, the fork is lowered, the pallet is placed at the destination, and then the fork is pulled out from the fork insertion port.

As general pallets, those made of wood, plastic, metal (iron alloy) or paper are known. However, many general pallets, for example, even wooden pallets weigh 10 kg or more, and although paper pallets are lighter than plastic or metal pallets, they are dense in order to ensure shape stability. It is compressed with and has a considerable weight. Hand lifts are often used in markets where many people come and go, and in recent years, pallets have also been used in robot warehouses where luggage is automatically carried in, sorted, picked, etc. by robot arms. In order to improve the transport efficiency by the robot arm, it is required to reduce the weight of the pallet. Therefore, a foamed resin pallet is known as a pallet that is even lighter than a paper pallet (see Patent Document 1).

Japanese Patent Application Laid-Open No. 2003-72754

However, the foamed resin pallet has a problem that the strength for mounting a heavy object is not sufficient as compared with the wooden or plastic pallet, and the surface thereof is easily roughened. Further, the foamed resin molded body is generally molded by a mold, but the pallet is a molded body having a relatively large size. For example, in order to manufacture a plurality of types of pallets having different sizes and shapes of fork insertion ports. Since a large mold is required for each type, the shapes and materials that can be manufactured are limited in consideration of the rational manufacturing cost.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a pallet that is lightweight, has sufficient strength and surface durability on which a heavy object can be placed, and has few restrictions such as a shape that can be manufactured. And.

In order to solve the above problems, the present invention is a pallet provided with a plate-shaped pallet body made of foamed resin and a plurality of girders provided on the lower surface of the pallet body, and a vacuum is applied to the entire surface of the pallet. Further, an integrally molded resin sheet is further provided, and the joint surface of the girder body with the pallet body has a flange portion extending outward, and the joint portion of the pallet body with the girder body is formed. The flange portion is carved from the surface of the lower surface of the pallet body so as to fit into the pallet body, the pallet body and the girder body are molded as separate bodies, and the collar portion of the girder body is the joint portion of the pallet body. It is characterized in that it is held in close contact with each other by being covered with the resin sheet in a state of being fitted into the resin sheet.

In the pallet, it is preferable that the pallet body and the resin sheet are both made of the same resin material.

In the pallet, the resin sheet is preferably dyed or colored.

In the pallet, it is preferable that the pallet body and the girder have a fitting structure for fitting each other.

The pallet further includes a frame body provided on the upper surface of the pallet body, and the frame body is molded into a predetermined shape corresponding to the shape of an object placed on the upper surface of the pallet body. It is preferable that the frame body is molded as a separate body and is covered with the resin sheet so as to be in close contact with each other.

The pallet is further provided with a reinforcing material for reinforcing the upper surface of the pallet body, a recess in which the reinforcing material is embedded is formed on the upper surface of the pallet body, and the reinforcing material is covered with the resin sheet. It is preferable that the resin is closely held while being embedded in the recess.

In the pallet, the reinforcing material is preferably formed of the same resin material as the pallet body and the resin sheet.

In the pallet, the reinforcing material is preferably wood, resin material or metal material.

According to the pallet according to the present invention, since the pallet body forming the main body is made of foamed resin, it is lightweight, and since the resin sheet is vacuum-integratedly molded, the surface durability is higher than that of the foamed resin forming the pallet body. Can be obtained. Further, since the resin sheet is cured at room temperature and is provided on the entire surface of the pallet, the strength of the pallet itself can be improved to the strength at which a certain heavy object can be placed. Further, since the girder body is separate from the pallet body, it is possible to manufacture a plurality of types of pallet 1 according to the application by appropriately adopting a plurality of types of girder bodies while sharing the pallet body. It is possible to reduce restrictions such as the shape of the.

(A) A perspective view mainly of a plane of the pallet according to the first embodiment of the present invention, (b) is a perspective view mainly of a bottom surface. (A) to (d) are diagrams for explaining the procedure of vacuum forming a resin sheet on the upper surface of the pallet of the same pallet. (A) to (d) are diagrams for explaining the procedure of vacuum forming a resin sheet on the lower surface of the pallet of the same pallet. (A) is a side sectional view of the pallet, and (b) is a partially enlarged sectional view of (a). (A) and (b) are perspective views showing the configuration in which the girder body attached to the pallet body in the pallet is changed. (A) and (b) are perspective views showing the configuration in which the pallet body and the girder are separated in the pallet according to the modified example of the above embodiment. (A) to (f) are diagrams for explaining a procedure for producing a pallet according to a second embodiment of the present invention and its intended use. (A) to (f) are diagrams for explaining the configuration of a plurality of variations of the above embodiment and their intended use. (A) to (e) are diagrams for explaining the procedure for producing a pallet according to a third embodiment of the present invention. (A) to (c) are perspective views showing the configuration in which the reinforcing material attached to the pallet body is changed in the pallet according to the modified example of the above embodiment.

The pallet according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, the pallet 1 of the present embodiment is suitably used for managing and transporting cargo using a forklift, a hand lift, or the like at a distribution site or the like, and is a plate-shaped foam resin. It includes a pallet body 2 and a plurality of girders 3 provided on the lower surface of the pallet body 2. Further, the pallet 1 further includes a resin sheet 4 integrally molded with vacuum on the entire surface thereof.

The pallet body 2 and the girder body 3 are molded as separate bodies. The material constituting the pallet body 2 is, for example, a foamed synthetic resin such as a polyolefin resin such as polystyrene, polyethylene, or polypropylene, and in this embodiment, expanded polystyrene (EPS (expanded polystyrene)) is used. The material constituting the girder body 3 is preferably the same as that of the pallet body 2, but a material having a density and hardness different from that of the pallet body 2 may be used, or another material may be used.

The pallet body 2 is a plate-shaped member having a predetermined wall thickness and having a rectangular shape in a plan view. The shape of the pallet body 2 can be appropriately selected from various shapes including a polygonal shape in a plan view. The pallet body 2 has an upper surface 21 as a loading surface on which luggage is loaded, a lower surface 22 provided with a plurality of (nine in this embodiment) girders 3, and a side surface 23 connecting the upper surface 21 and the lower surface 22. Have. The upper surface 21 has substantially the same external dimensions as the lower surface 22, and the corners of each side surface 23 are chamfered so as to be rounded.

The girder body 3 is a support member that raises the height of the upper surface 21 that serves as a loading surface, and a plurality of girder bodies 3 are arranged with adjacent girder bodies 3 at a predetermined interval, so that the fork of the forklift can be formed. The fork insertion portion 10 to be inserted is formed. In the girder body 3 of the present embodiment, the length in the longitudinal direction thereof is shorter than one side surface of the pallet body 2 so that the fork of the forklift can be inserted from four directions, and the four corners of the lower surface 22 of the pallet body 2 are these four corners. It is provided at an intermediate position on the side of the surface and at the center of the lower surface 22 respectively.

The girder body 3 has a joint surface 31 joined to the pallet body 2, a mounting surface 32 which becomes a bottom surface when the pallet 1 is mounted, and a side surface 33 connecting the joint surface 31 and the mounting surface 32. Has. In the girder body 3 of the present embodiment, the joint surface 31 and the mounting surface 32 are rectangular in a plan view, and the side surface 33 is a block shape having four surfaces. The joint surface 31 of the girder 3 is formed with a recess 31a (see FIG. 4B described later) for lightening (lightening) on the lower surface side thereof. In addition, a cover made of curable resin, wood, metal, etc. (not shown) is attached to the lower surface of the girder 3 in order to prevent deterioration of Styrofoam and generation of waste due to multiple transportation using a forklift. May be done.

The girder 3 is formed so that the joint surface 31 is slightly larger than the mounting surface 32, and each side surface 33 is slightly tapered from the joint surface 31 toward the mounting surface 32. It is inclined to. Further, the corners of each side surface 33 and the corners of the side surface 33 and the mounting surface 32 are chamfered so as to be rounded. The girder body 3 is not limited to the shape shown in the figure, and may be, for example, a cylindrical shape or a polygonal pillar shape other than a quadrangular prism. The side surface 33 is set so that the amount of raising of the upper surface 21 which is the loading surface becomes a desired value.

The resin sheet 4 is formed so as to cover the entire surface of the pallet body 2 and the girder body 3 except for their joints. The resin sheet 4 is a sheet member that is softened and deformed by heating, but is cured at room temperature and has sufficient strength and surface durability to allow a heavy object to be placed on it. As the material of the resin sheet 4 of the present embodiment, the same resin material as that of the pallet body 2 is preferably used. Used.

2 (a) to 2 (d) and FIGS. 3 (a) to 3 (d) show a procedure for integrally vacuum-forming the resin sheet 4 on the pallet body 2 in the pallet 1 of the present embodiment. First, as shown in FIG. 2A, a pallet body 2 molded into a predetermined shape is prepared. The upper surface 21 of the pallet body 2 is provided with a non-slip portion 24 at a position corresponding to the position of the girder body 3 of the pallet 1 placed on the upper stage when a plurality of pallets 1 are loaded. Further, the pallet body 2 is formed with a vent 25 penetrating from the upper surface 21 to the lower surface 22 (see also FIG. 2B).

Next, as shown in FIG. 2B, the pallet body 2 is placed on the upper surface of the vacuum container 61 with the upper surface 21 facing up, and the resin sheet 4 is arranged on the upper surface of the vacuum container 61. Although the dyed resin sheet 4 is shown in FIG. 2B for convenience of explanation, the resin sheet 4 may be transparent or may have the same white color as the pallet body 2. As shown in FIG. 2C, a heater 62 is arranged above the resin sheet 4, and the heater 62 heats the resin sheet 4 to soften the resin sheet 4. The vacuum container 61 is provided with a suction port (not shown) through which the internal space and the outside of the upper surface side of the vacuum container 61 pass, and a decompression pump 63 for depressurizing the internal space. The vacuum container 61 on which the pallet body 2 is placed can be moved upward, and the pallet body 2 is brought into close contact with the resin sheet 4 softened by the heater 62, and the decompression pump 63 is operated to open the vent 25. Air is sucked between the pallet body 2 and the resin sheet 4 through the pallet body 2, and the resin sheet 4 is vacuum-adsorbed to the pallet body 2. As a result, as shown in FIG. 2D, the upper surface 21 and the side surface 23 of the pallet body 2 are covered with the resin sheet 4 without gaps.

Subsequently, as shown in FIG. 3A, a plurality of girders 3 are arranged on the lower surface 22 of the pallet body 2. The lower surface 22 of the pallet body 2 is provided with a joint portion 26 with the girder body 3 at a position facing the non-slip portion 24. The joint surface 31 of the girder 3 has a flange portion 31b slightly extended outward (see also FIG. 4B described later), and the joint portion 26 provided on the lower surface 22 of the pallet body 2 is a girder body. It is slightly carved from the surface of the lower surface 22 so that the flange portion 31b of 3 is fitted. The girder body 3 may be temporarily fixed by an adhesive made of the same resin material as the pallet body 2.

Next, as shown in FIG. 3B, the pallet body 2 on which the girder body 3 is arranged is placed on the upper surface of the vacuum container 61 with its lower surface 22 facing up, and the resin sheet 4 is arranged on the pallet body 61. Will be done. Then, as shown in FIG. 3C, the vacuum container 61 on which the pallet body 2 is placed is moved upward so that the pallet body 2 is brought into close contact with the resin sheet 4 softened by the heater 62, and the pressure reducing pump is pumped. 63 is operated to vacuum-adsorb the resin sheet 4 to the pallet body 2 via the vent 25. As a result, as shown in FIG. 3D, the lower surface 22 and the side surface 23 of the pallet body 2 and the mounting surface 32 and the side surface 33 of the girder body 3 are covered with the resin sheet 4 without gaps.

In this way, as shown in FIGS. 4A and 4B, in the pallet 1 of the present embodiment, the pallet body 2 and the girder body 3 molded as separate bodies are covered with the resin sheet 4. They are held in close contact with each other. The pallet 1 of the present embodiment is lightweight because at least the pallet body 2 which is the main body is made of foamed resin, and the resin sheet 4 is vacuum-integrated on the entire surface of the pallet 1, so that the pallet body 2 is foamed. Surface durability can be obtained as compared with resin. Further, since the resin sheet 4 is cured at room temperature and is provided on the entire surface of the pallet 1 including the vertical surface such as the side surface 23 of the pallet body 2, the strength of the pallet 1 itself can be increased to a certain weight. It can be improved in strength. In FIG. 4B, the thickness of the resin sheet 4 is exaggerated for convenience of explanation.

Further, in the pallet 1 of the present embodiment, as shown in FIG. 4B, the flange portion 31b of the girder body 3 is fitted into the joint portion 26 of the lower surface 22 of the pallet body 2, and each side surface 33 is slightly small. Since it is inclined to, the corner formed by the lower surface 22 and the side surface 33 is wider than the right angle. Therefore, when the resin sheet 4 is covered, gaps are unlikely to remain in the corners thereof, and the resin sheet 4 is held in close contact with the pallet body 2 and the girder body 3.

Further, since the pallet body 2 and the resin sheet 4 are both made of the same resin material (polystyrene in this example), it is not necessary to separately dispose of the pallet body 2 and the resin sheet 4 when disposing of the pallet 1, and the pallet body 2 and the resin sheet 4 are discarded. It is possible to make a product suitable for recycling with less labor. Further, since the resin sheet 4 is held in close contact with the pallet body 2 by vacuum integral molding and is not adhered by an adhesive or the like, if the resin sheet 4 is broken, it can be easily separated from the pallet body 2. can. The girder 3 is also formed of the same resin material as the pallet body 2 and the resin sheet 4, so that the pallet 1 can be easily disposed of. Further, the girder body 3 is separate from the pallet body 2 and is held in close contact with the pallet body 2 by being covered with the resin sheet 4, so that if the resin sheet 4 is broken, the girder body 3 can be easily separated from the pallet body 2. You can also do it.

Since the girder body 3 of the pallet 1 of the present embodiment is different from the pallet body 2, a plurality of types having different shapes, materials, and the like can be applied to the girder body 3. For example, as shown in FIG. 5A, a girder body 3A having a height higher than that of the girder body 3 may be used as the girder body 3. According to the girder body 3A, the amount of raising of the upper surface 21 of the pallet body 2 serving as the loading surface is increased, and the opening of the fork insertion portion 10 (see FIG. 1) can be increased in the height direction.

Further, for example, as shown in FIG. 5B, a long block-shaped girder 3B having the same length in the longitudinal direction as one side of the pallet body 2 may be used. In the girder body 3B, three girder bodies 3 are arranged in parallel at predetermined intervals so that the fork of the forklift can be inserted from two sides.

In the pallet 1 of the present embodiment, since the girder body 3 is a separate body from the pallet body 2, a plurality of types of girder bodies 3 having different sizes and shapes (or materials) are applied to the pallet body 2, and they are made of resin. Hold in close contact with the sheet 4. Since the girder body 3 is smaller in size than the pallet body 2 which is a relatively large molded body, it can be molded with a small mold. Therefore, by appropriately adopting a plurality of types of girders 3 while sharing the pallet body 2, a plurality of types of pallets 1 can be manufactured according to the intended use, and restrictions such as the shape of the pallets 1 are reduced. be able to.

The resin sheet 4 may be dyed or colored. The dyeing or color is appropriately selected according to the type and use of the palette 1. Generally, foamed synthetic resin products are white. Since the foamed resin pallet body 2 (girder body 3) is a three-dimensional member having a predetermined thickness, a large amount of dye or the like is required to make them colored. Further, since the surface durability does not change only by painting the outer surface of the pallet, if the outer surface is damaged or the inner color is exposed, the appearance will be deteriorated. On the other hand, since the resin sheet 4 is a member having a substantially two-dimensional shape having a small thickness, a small amount of dye or the like is sufficient to make it colored. Therefore, by dyeing or coloring the resin sheet 4, the appearance of the pallet 1 can be efficiently colored. Further, since the surface durability of the pallet 1 is improved by the resin sheet 4, the outer surface is less likely to be damaged and the appearance can be maintained for a long period of time. Further, by coloring the resin sheet 4, the design appearance is improved, the pallet 1 can be used as a shelf, for example, and can be displayed in a store where customers can see it.

A modified example of the above embodiment will be described with reference to FIG. The pallet 1 of this modification has a fitting structure for fitting the pallet body 2 and the girder 3 to each other. Specifically, as shown in FIG. 6A, a concave groove 22a is formed on the lower surface 22 of the pallet body 2, and a ridge 31c is formed on the upper surface of the girder 3. In this modification, as shown in FIG. 6B, the fork of the forklift can be inserted from four directions. The girder body 3 embedded in the center of the lower surface 22 of the pallet body 2 has a cam structure or the like. Also in this configuration, the same effect as that of the above embodiment can be obtained, the space required for storage can be reduced, and the configuration of the pallet 1 can be customized according to the customer's request.

The pallet according to the second embodiment of the present invention will be described with reference to FIGS. 7 and 8. As shown in FIGS. 7A to 7F, the pallet 1 of the present embodiment further includes a frame body 5 provided on the upper surface 21 of the pallet body 2. The frame body 5 is molded as a separate body from the pallet body 2 and is covered with the resin sheet 4 so as to be in close contact with each other. Specifically, according to the procedure shown in FIGS. 3 (a) to 3 (d), a girder body 3 integrally molded with a resin sheet 4 is prepared on the lower surface 22 of the pallet body 2 (FIG. 7 (a). )reference).

Next, as shown in FIG. 7B, a frame body 5 molded into a predetermined shape is arranged on the upper surface of the pallet body 2. Like the girder body 3, the frame body 5 is preferably formed of the same resin material (polystyrene in this example) as the pallet body 2 or the resin sheet 4. Then, as shown in FIG. 7 (c), the resin sheet 4 is covered from above the resin sheet 4, and the pallet body 2 and the frame 5 are brought into close contact with the resin sheet 4 in the same manner as in the procedure described in FIG. 2 (c). Then, they are vacuum integrally molded (see FIG. 7 (d)). The frame body 5 in the illustrated example is formed so as to correspond to a large cylindrical baggage 10A. Examples of the baggage 10A include a drum can and a bobbin wound with an electric wire.

Various variations can be mentioned in the frame body 5 of this embodiment. For example, FIGS. 8 (a) and 8 (b) show a variation example including a frame body 5B that allows a plurality of tubular luggage 10B smaller than the luggage 10A of FIGS. 7 (e) and 7 (f) to be loaded. Examples of the luggage 10B include tires, barrels and the like. Further, FIGS. 8 (c) and 8 (d) show an example of a change provided with a frame body 5C that allows a plurality of box-shaped luggage 10Cs to be placed. Examples of the luggage 10C include home appliances (flat-screen TVs, personal computers), assembled furniture, and the like. Further, FIGS. 8 (e) and 8 (f) show a variation example including a frame body 5D that enables a plurality of rod-shaped luggage 10Ds to be packed. Examples of the luggage 10D include automobile parts such as suspensions and gears. The frame body 5D is a pallet 1 integrated with a component tray.

According to the present embodiment, the frame bodies 5 formed in various shapes are arranged on the upper surface 21 of the pallet body 2, and they are vacuum-integrated with the resin sheet 4, while the pallet is the main configuration of the pallet 1. Since a common material is used for the main body 2 and the girder body 3, various pallets 1 according to the intended use can be manufactured at low cost.

The pallet according to the third embodiment of the present invention will be described with reference to FIGS. 9 and 10. As shown in FIG. 9A, the pallet 1 of the present embodiment further includes a reinforcing material 7 for reinforcing the upper surface 21 of the pallet body 2. Further, a recess 27 in which the reinforcing material 7 is embedded is formed on the upper surface 21 of the pallet body 2. Here, three girders 3 are arranged in parallel, and fork insertion portions 10 are open on both sides in the fork insertion direction, indicating a configuration of a pallet 1 capable of so-called two-way insertion.

The recesses 27 of the present embodiment are concave grooves provided in a plurality of (six places in the figure) in a direction substantially orthogonal to the insertion direction of the fork of the forklift (longitudinal direction of the girder body 3). The depth of the groove is preferably substantially the same as the wall thickness of the pallet body 2. By doing so, when the forklift is used to carry the load placed on the upper surface 21 of the pallet body 2, the fork of the forklift directly contacts the reinforcing material 7, and a load is applied to the reinforcing material 7. Therefore, the pallet body 2 The load on the pallet 1 is reduced, the pallet 1 is less likely to squeak, and it is possible to prevent the pallet 1 from breaking due to the weight of the load. Further, both ends of the concave groove in the longitudinal direction of the concave groove 27 are formed wider than the concave groove, which makes it easy for an operator to insert a finger into the concave groove 27 when attaching / detaching the reinforcing material 7 from the concave groove 27. Workability can be improved.

The reinforcing material 7 is an elongated plate-shaped member, and is formed of a material having strength characteristics of a predetermined strength or higher. As the material constituting the reinforcing material 7, for example, the same resin material (for example, PS) as the pallet body 2 and the resin sheet 4 but having a higher density and higher strength than those is used. When disposing of the pallet 1, it is not necessary to separately dispose of the pallet body 2, the resin sheet 4, and the reinforcing material 7, so that the labor of disposal is small and the product can be made suitable for recycling. Further, the reinforcing material 7 may be a wood or a metal material. Wood is easy to obtain and process into a predetermined shape. Further, the metal is preferably used when it is desired to further increase the strength of the pallet 1.

Next, as shown in FIG. 9B, the pallet body 2 into which the reinforcing material 7 is fitted is placed on the upper surface of the vacuum container 61 with the upper surface 21 facing up, and the resin sheet 4 is arranged on the pallet body 61. Will be done. Then, the resin sheet 4 is vacuum-adsorbed to the upper surface of the pallet body 2 by the same procedure as that of the above-described embodiment (not shown). As a result, as shown in FIG. 9C, the upper surface 21 and the side surface 23 of the pallet body 2 are covered with the resin sheet 4 without gaps. Subsequently, as shown in FIG. 9D, the girder body 3 is arranged on the lower surface 22 of the pallet body 2. Then, the pallet body 2 on which the girder 3 is arranged is placed in a vacuum container, and the resin sheet 4 is vacuum-adsorbed to the lower surface of the pallet body 2 by the same procedure as the above-described embodiment (not shown). As shown in FIG. 9 (e), the lower surface 22 and the side surface 23 of the pallet body 2 and the mounting surface 32 and the side surface 33 of the girder body 3 are covered with the resin sheet 4 without gaps. At this time, the reinforcing material 7 is covered with the resin sheet 4 so as to be embedded in the recess 27 and held in close contact with the reinforcing material 7.

As described above, in the pallet 1 of the present embodiment, the resin sheet 4 is vacuum-integrated on the entire surface thereof, so that the pallet body 2, the girder body 3 and the reinforcing material 7 molded as separate bodies are formed by the resin sheet 4. By being covered, they are kept in close contact with each other. By embedding the reinforcing material 7 in the recess 27, the pallet 1 can increase the strength of the pallet 1 orthogonal to the fork of the forklift in the left-right direction. Further, since the reinforcing material 7 is held by the resin sheet 4 in a state of being fitted in the recess 27 and is not adhered by an adhesive or the like, it can be easily removed from the recess 27 if the resin sheet 4 is broken. Therefore, even if the reinforcing material 7 is a non-resin material such as wood or metal, only the reinforcing material 7 can be easily separated when the pallet 1 is discarded.

A modified example of the above embodiment will be described with reference to FIG. In the pallet 1 of this modification, the metal reinforcing material 7 is provided on substantially the entire area of the upper surface 21 of the pallet body 2. FIG. 10A shows a configuration in which the reinforcing material 7 is a metal mesh plate 7A, and a recess 27 into which the metal mesh plate 7A is fitted is formed on the upper surface 21 except for the peripheral edge thereof. FIG. 10B shows a configuration in which the reinforcing material 7 is a reinforcing bar 7B in which reinforcing bars are arranged in a grid pattern, and the reinforcing bar 7B has a grid-like groove formed as a recess 27 on the upper surface 21. FIG. 10C shows a configuration in which the reinforcing material 7 is a punching board 7C, and a recess 27 into which the punching board 7C is fitted is formed on the upper surface 21 except for the peripheral edge thereof.

For example, when a heavy object having irregularities is placed on the pallet 1, when a load is locally applied to the upper surface 21 of the pallet body 2, the upper surface 21 of the pallet body 2 is covered with the resin sheet 4. However, there are cases where local dents occur. When such a case is repeated, the upper surface 21 of the pallet body 2 becomes uneven, and the durability of the pallet 1 is lowered. According to this modification, since the metal reinforcing material 7 is provided in almost the entire area of the upper surface 21 of the pallet body 2, a dent is generated even if a load is locally applied to the upper surface 21 of the pallet body 2. It is difficult and the durability of the pallet 1 can be improved. Further, since the reinforcing material 7 is covered with the resin sheet 4 (not shown), it does not come into direct contact with the load placed on the pallet 1. Therefore, the unevenness of the surface of the metal reinforcing material 7 does not affect the load.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made without changing the gist of the invention. Further, in the above embodiment, the example in which the structure of the pallet 1 is applied to the transportation of the cargo by the forklift has been described, but it goes without saying that the structure can also be applied to other structures made of foamed synthetic resin. Further, the pallet 1 of the above embodiment is shown to be suitably used for a forklift, a hand lift, or the like, but it may be a floor-standing type or a movable type in which casters are provided on the lower surface of the pallet body 2. good.

1 Pallet 2 Pallet body 21 Top surface 22 Bottom surface 22a Concave groove (fitting mechanism)
27 Concave 3 girder 31c Convex (fitting mechanism)
4 Resin sheet 5 Frame body 7 Reinforcing material

Claims (8)

A pallet provided with a plate-shaped pallet body made of foamed resin and a plurality of girders provided on the lower surface of the pallet body.
A resin sheet integrally molded with vacuum is further provided on the entire surface of the pallet.
The joint surface of the girder body with the pallet body has a flange portion extending outward.
The joint portion of the pallet body with the girder body is carved from the surface of the lower surface of the pallet body so that the flange portion is fitted.
The pallet body and the girder body are molded as separate bodies, and the flange portion of the girder body is fitted into the joint portion of the pallet body and covered with the resin sheet to be held in close contact with each other. A pallet characterized by that. The pallet according to claim 1, wherein the pallet body and the resin sheet are both made of the same resin material. The palette according to claim 1 or 2, wherein the resin sheet is dyed or colored. The pallet according to any one of claims 1 to 3, wherein the pallet body and the girder have a fitting structure for fitting each other. Further provided with a frame provided on the upper surface of the pallet body,
The frame is molded into a predetermined shape corresponding to the shape of an object placed on the upper surface of the pallet body.
The pallet according to any one of claims 1 to 4, wherein the pallet body and the frame body are molded as separate bodies and are covered with the resin sheet so as to be in close contact with each other. Further provided with a reinforcing material to reinforce the upper surface of the pallet body,
A recess in which the reinforcing material is embedded is formed on the upper surface of the pallet body.
The pallet according to any one of claims 1 to 5, wherein the reinforcing material is covered with the resin sheet so as to be closely held while being embedded in the recess. The pallet according to claim 6, wherein the reinforcing material is made of the same resin material as the pallet body and the resin sheet. The pallet according to claim 6 or 7, wherein the reinforcing material is wood, a resin material, or a metal material.

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