JP4169819B2 - Plastic pallet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin pallet for forklifts used when storing and transporting luggage.
[0002]
[Prior art]
In recent years, a pallet made of synthetic resin, which is excellent in water resistance and corrosion resistance, has been used in many of pallets for storing and transporting luggage in place of wooden pallets. Synthetic resin pallets have a problem that they are slippery due to their properties. That is, the problem of slipping in the pallet occurs between the loaded cargo and between the stacked pallets. There is a risk that the load placed on the pallet may slip and cause the load to be lost, or when the unused pallets are stacked, the load may be lost.
[0003]
Therefore, in order to prevent lateral displacement of the loaded luggage, there is known a structure in which a frame body is protruded from the periphery of the upper surface of the pallet. For example, there are pallets described in Japanese Utility Model Publication No. 5-44281 and Japanese Utility Model Publication No. 6-76054. The pallet described in Japanese Utility Model Publication No. 5-44281 is described as follows: “A projecting portion that enlarges the area of the upper surface is integrally formed on the upper outer periphery of the upper deck, and a frame body is erected on the upper end of the projecting portion. A notch is formed in each corner of the body along the circumferential direction. " On the other hand, the pallet described in Japanese Utility Model Laid-Open No. 6-76054 is provided with a projecting protrusion projecting along the outer peripheral edge of the upper surface at a position slightly pulled inward from the outer peripheral edge of the upper surface of the pallet. The outer peripheral portion of the lower surface portion of the lower pallet is staged over the entire length, and is placed into a portion surrounded by the protruding portion of the upper surface portion of the lower pallet.
[0004]
[Problems to be solved by the invention]
Although the pallet can prevent sideways sliding of the object, it has the following problems. In general, the pallet is required to safely store and transport the loaded cargo and to prevent contamination by rainwater or the like. However, when a frame is provided on the periphery of the upper surface as in the case of the pallet, rainwater or the like transmitted along the outer surface of the load located on the outer periphery is not drained for the frame. It penetrates between the parts, that is, between the pallet and the load, and contaminates the lower surface of the load.
[0005]
In addition, even when pallets are stacked and stored outdoors, rainwater, etc. that travels on the outer surface of the frame projecting from the outer peripheral edge of the pallet upper surface is not drained for the frame of the lower pallet. Therefore, it penetrates between the lower surface of the upper pallet and the upper surface of the lower pallet and does not evaporate easily. As described above, when the pallet is in a wet state, even if the upper pallet is lifted and pulled out, there are cases where it is difficult to remove the pallet because moisture adheres both. Moreover, placing the load while the top surface of the pallet is wet not only may contaminate the loaded load, but is also not hygienic.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows. That is, the synthetic resin pallet according to the present invention is a synthetic resin pallet formed by connecting an upper deck board and a lower deck board via a girder, and is lower than the upper surface of the upper deck board at the outer peripheral edge of the upper deck board. An extended portion is provided, and a groove is formed inside the outer wall by standing an outer wall higher than the upper surface of the upper deck board at the outer peripheral edge of the extended portion, and one or more water is formed at an appropriate position of the groove. A hole is formed, and the outer wall projects outward from the outer peripheral edge of the lower surface of the lower deck board .
The groove may be formed by dividing an outer peripheral edge of the upper deck board, providing an extension portion extending further outward from the paragraph, and standing an outer wall on the extension portion. Further, at the corner portion of the upper deck board, an outer wall is cut out and a protruding portion whose upper surface is formed at the same height as the bottom surface of the groove or lower than the groove is provided, and the groove is excluded from the corner portion of the upper deck board. May be formed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the illustrated embodiment will be described in detail. The synthetic resin pallet 10 is a four-way pallet, and two parts of an upper molding member 15 and a lower molding member 17 which are separately separately molded in advance from a substantially middle dividing line 13 of the girder 11 are brought into contact with each other and welded. Are formed integrally. The upper molding member 15 includes an upper deck board 15a and a girder portion 11a, and the lower molding member 17 includes a lower deck board 17a and a girder portion 11b. The pallet 10 is formed by abutting and welding the end surfaces of the beam part 11a and the beam part 11b.
[0008]
The girder part 11a and the girder part 11b constituting the girder 11 are hollow structures whose side surfaces are closed. A space surrounded by the girder 11, the upper deck board 15a, and the lower deck board 17a is formed in a fork insertion port 19. It is said. The upper deck board 15a of the pallet 10 is composed of a smooth plate 20 and reinforcing ribs 21, and the outer peripheral surface is closed by a side plate 22, and the lower deck board 17a is composed of a smooth plate 23 and reinforcing ribs 25, and the outer peripheral surface is It is closed by the side plate 26.
[0009]
Grooves 30 are formed at the outer peripheral edge of the upper deck board 15a except for the corners, and the height of the outer wall 31 constituting the groove 30 projects upward from the upper surface of the upper deck board 15a. ing. Since the groove 30 is formed by stepping from the upper surface of the upper deck board 15a, the bottom surface of the groove 30 is naturally lower than the upper surface of the upper deck board 15a. The outer wall 31 protrudes outward from the outer peripheral edge of the lower surface of the lower molding member 17 so that the lower surface of the lower molding member 17 fits into the outer wall 31 when pallets are stacked. Has been.
[0010]
The groove 30 has an outer peripheral edge of the upper deck board 15a, and is provided with an extension 33 that continuously extends outward from the paragraph, and the outer wall 31 is erected on the extension 33. It may be formed by providing an extended portion 35 lower than the upper surface of the upper deck board 15a at the outer peripheral edge of the upper deck board 15a, and standing the outer wall 31 on the extended portion 35. Good. Substantially triangular reinforcing ribs 37 are provided at appropriate intervals on the lower surfaces of the extended portions 33 and 35. In addition, the extension portions 33 and 35 may be provided with drain holes 39 at appropriate intervals.
[0011]
At the corner portion of the upper deck board 15a, there is provided a protruding portion 40 whose upper surface is the same height as the bottom surface of the groove 30 or lower than the bottom surface of the groove 30 and protrudes from the end surface of the upper deck board 15a. The protruding portion 40 has a corner portion formed in an arc shape, and can be formed by extending the extension portions 33 and 35 to a corner portion. Since the protruding portion 40 is not provided with the outer wall 31 and the side surface is open, rainwater drained from the groove 30 flows out of the protruding portion 40. The protrusion 40 can be omitted. When the protrusion 40 is omitted, rainwater or the like in the groove 30 flows out directly from both ends of the groove 30.
[0012]
Rain or the like is drained by the groove 30 without penetrating the upper surface of the upper deck board 15a, and the outer wall 31 is formed higher than the upper surface of the upper deck board 15a, thereby preventing lateral displacement of the loaded load. Further, when the pallets are stacked, the lower part of the upper pallet fits into the outer wall 31 of the lower pallet to prevent the pallet from slipping down.
[0013]
5 to 7 show the cross-sectional shape of the groove in another embodiment. 5 shows a groove 31a having a V-shaped cross section, FIG. 6 shows a groove 31b having a U-shaped cross section, and FIG. 7 shows a groove 31c having a tapered surface. Each of the grooves 31a, 31b, 31c is formed by making the outer peripheral edge of the upper deck board 15a and the upper surfaces of the extended portions 33, 35 into a continuous surface matching the groove shape. As apparent from the above description, the groove shape in the present invention can be arbitrarily formed, as long as the bottom surface of the groove is lower than the upper surface of the upper deck board 15a and drainage is possible. Moreover, although the four-way pallet has been described in the above embodiment, a two-way pallet may be used.
[0014]
Furthermore, in any of the above embodiments, the groove 30 is formed except for the corner portion, but the present invention is not limited to the above embodiment, and the groove 30 may be formed in the corner portion. That is, the outer wall forming the groove may be provided continuously and integrally without being cut out at the corner. In this way, when the groove is formed by the continuous integral outer wall, a plurality of drain holes that open to the bottom surface of the groove or the outer wall may be provided at appropriate positions of the groove for drainage from the groove. .
[0015]
FIG. 8 is a cross-sectional view of an essential part showing still another embodiment. In any of the above embodiments, the outer wall forming the groove is formed so as to protrude outward from the outer peripheral edge of the lower surface of the lower deck board, and the pallets can be stacked. On the contrary, an outer wall that forms a groove is provided at the outer peripheral edge of the upper deck board, and the lower deck board 17a and the lower end outer surface of the girder portion 11b constituting the lower molding member 17 are fitted inside the outer wall. Thus, it is formed so as to be recessed inward from the outer wall. If it demonstrates based on FIG. 8, the groove | channel 30a will be formed over the perimeter of the outer periphery edge part of the upper deck board 15a, and the continuous outer side wall 31a will be provided. In this configuration, the area of the upper deck board 15a is not expanded.
[0016]
Lower end portions of the lower deck board 17a and the girder portion 11b constituting the lower molded member 17 are recessed inward from the outer surface of the upper deck board 15a and the girder portion 11a, and when the pallets are stacked, the outer wall 31a The fitting part 42 which fits inside is comprised. The outer surface of the fitting portion 42 may be a substantially vertical surface as shown in FIG. 8 or may be an inclined surface. When the outer side wall 31a is formed continuously and integrally, a plurality of drain holes 44 that open to the outer surface of the outer wall may be provided at appropriate portions of the groove for drainage from the groove 30a.
[0017]
Note that the outer wall 31a may be cut out at the corner as in the embodiment of FIG. When the outer side wall 31a is cut out at the corner, the drain hole 44 can be omitted. Further, the shape of the groove 30a can be applied to the shape of the groove of the embodiment shown in FIGS.
[0018]
FIG. 9 is an explanatory partial sectional view showing an example of use of the pallet according to the present invention. A resin sheet 41 is drawn on the pallet 10, and a bottom plate 43 is placed thereon as a cushioning material, and iron wire wound bobbins 45 are arranged on the bottom plate 43. Furthermore, the iron wire wound iron bobbins 45 are arranged through the separator 47, and the iron wire wound iron bobbins 45 are stacked in a plurality of stages in the same manner. Thereafter, the entire iron wire-wound iron bobbin 45 is packaged with the resin sheet 41, and finally covered with a cardboard 49. When covering with the cardboard 49, the lower end of the cardboard 49 is fitted and fixed in the groove 30.
[0019]
Thus, in order to store and transport products such as iron-wound iron bobbins that must be protected from moisture, they may be covered with cardboard to protect the load, but the lower end of the cardboard is placed in the groove 30. The cardboard and the load can be prevented from slipping by fitting the portions. Further, rain water, water droplets, and the like that flow down along the side surfaces of the cardboard are drained from the grooves, and thus do not penetrate into the upper surface of the upper deck board 15a.
[0020]
【The invention's effect】
According to the synthetic resin pallet according to the present invention, the groove is formed at the outer peripheral edge of the upper deck board, and the height of the outer wall forming the groove is higher than the upper surface of the upper deck board. Rainwater or the like that has traveled along the outer surface of the load located in the section is drained from the groove and is prevented from penetrating between the pallet and the load. In addition, even when pallets are stacked, rainwater or the like transmitted along the outer surface of the upper pallet is drained from the groove of the lower pallet, thereby preventing the pallets from coming into close contact with each other. Furthermore, it is possible to prevent lateral displacement of the load placed by the outer wall that forms the groove and displacement of the upper pallet.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing an example of a pallet according to the present invention.
FIG. 2 is an enlarged cross-sectional view of a fork insertion port.
FIG. 3 is an enlarged cross-sectional view of a spar portion.
FIG. 4 is an enlarged cross-sectional view of the same girder part.
FIG. 5 is an enlarged sectional view showing another embodiment of the sectional shape of the groove.
FIG. 6 is an enlarged cross-sectional view showing another embodiment of the cross-sectional shape of the groove.
FIG. 7 is an enlarged cross-sectional view showing another embodiment of the cross-sectional shape of the groove.
FIG. 8 is an enlarged cross-sectional view of a fork insertion port according to another embodiment.
FIG. 9 is a partial sectional view for explaining an example of use of the pallet according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Synthetic resin pallet 11 Girder 11a Girder part 11b Girder part 13 Dividing line 15 Upper molding member 15a Upper deck board 17 Lower molding member 17a Lower deck board 19 Fork insertion port 20 Smooth plate 21 Reinforcement rib 22 Side plate 23 Smooth plate 25 Reinforcement Rib 26 Side plate 30, 30 a Groove 31, 31 a Outer side wall 33, 35 Expanded portion 37 Substantially triangular reinforcing rib 39 Drain hole 40 Projection portion 42 Fitting portion 44 Drain hole

Claims (3)

In a synthetic resin pallet formed by connecting an upper deck board and a lower deck board via a girder, an extended portion lower than the upper surface of the upper deck board is provided on the outer peripheral edge of the upper deck board, and the outer peripheral edge of the extended portion A groove is formed inside the outer wall by standing an outer wall higher than the upper surface of the upper deck board, and one or more drain holes are formed at appropriate positions of the groove. A synthetic resin pallet characterized by protruding outward from the outer peripheral edge of the lower surface of the lower deck board . The groove is formed by dividing an outer peripheral edge of the upper deck board, providing an extended portion extending further outward from the paragraph, and standing an outer wall on the extended portion. The synthetic resin pallet according to claim 1. At the corner portion of the upper deck board, the outer wall is notched, and a protrusion is formed with the upper surface being the same height as the bottom surface of the groove or lower than the groove, and the groove is formed excluding the corner portion of the upper deck board. The synthetic resin pallet according to claim 1 or 2, wherein the pallet is made of synthetic resin.

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