JP2006076605A - Pallet for transportation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pallet for transportation capable of being nested, inserting a fork from four directions, and having sufficient rigidity. <P>SOLUTION: The pallet 21 for transportation is equipped with a plate-like mount body 23; a plurality of bottomed cylindrical corner legs 25, intermediate legs 27 and center legs 29 formed to swell downward from the mount body; first to fourth coupling apertures 51, 55, 63 and 65 formed to open from one pair of legs to the other on part of the mount body 23 and a belt-like portion extending from one of the adjacent legs to the other on the body; first to third coupling mounts 59, 61 and 71 where the coupling apertures are not formed in the belt-like portion; first to fourth coupling bridges 53, 57, 67 and 69 provided by bridging bottoms of one of adjacent legs and the other below the coupling apertures; and first and second fork inserting and pulling out spaces 81 and 83 surrounded by one and other adjacent legs, the coupling mounts and the coupling bridges and capable of inserting and pulling out the fork. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transportation pallet on which an object can be placed and transported by a fork.

  Nowadays, a pallet for carrying a load on a top surface and carrying it by a fork is widely used in various fields. However, when many pallets for transportation are used, the stock space is not ridiculous, and there is a need to make it as small as possible. Due to this need, in recent years, transport pallets that can be stacked in a nesting state have been developed.

  As this conventional transport pallet, those shown in FIGS. 13 to 15 are known. This transportation pallet 1 is shown in Patent Document 1, and has a plurality of leg portions 9 projecting downward at three locations, that is, both side portions 5 and 5 of the rectangular plate-shaped placement portion 3 and a central portion 7. Is provided. The carrying pallet 1 has a load placed on the upper surface thereof, and the fork is inserted into the fork insertion portion 11 between the leg portions 9 of the side portion 5 and the leg portions 9 of the central portion 7. It is designed to be transported by.

  When stocking a large number of the transportation pallets 1, as shown in FIG. 15, the lower surface of the legs 9 of the transportation pallet 1 placed on the recesses of the upper surfaces of the legs 9 of the transportation pallet 1 placed below. The protrusions are fitted together and stacked one after another in a nesting state. In this way, by making the vertical stacking pitch much thinner than the thickness of the transport pallet 1, a large number of transport pallets 1, ... can be efficiently stored in a small space. The same applies to the pallet in Patent Document 2.

  However, in the carrying pallet 1, the fork can be inserted only from the two directions indicated by arrows A and B in FIG. For this reason, the movement of a forklift increases, it takes time, and an extra handling space for the forklift is required.

On the other hand, as shown in FIG. 16, it is also conceivable that nine leg portions 13 are provided on the placing portion 3 and the forks can be inserted from four directions indicated by arrows A, B, C, and D. It is done. However, if it did in this way, the rigidity of the mounting part 3 could not be maintained, and there was a problem that it could not be used as a transportation pallet.
JP 11-157540 A JP 2003-226331 A

  The present invention has been made to solve such problems, and an object of the present invention is to provide a transport pallet that can be nested and forks can be inserted from four directions and has sufficient rigidity. Yes.

  In order to solve the above-described problems, the present invention provides a plate-like placement portion main body, a plurality of bottomed cylindrical legs formed by bulging downward from the placement portion main body, and the placement portion main body described above. Among them, a connection opening formed by opening from one leg to the other leg in a part of the belt-like part extending from one leg to the other leg, and the band A connection mounting portion in which the connection opening is not formed, and a connection provided by connecting and bridging the bottom portions of the one leg and the other leg adjacent to each other below the connection opening. A fork insertion / extraction space that is surrounded by the bridging portion, the one leg portion adjacent to each other, the other leg portion, the connecting mounting portion, and the connecting bridging portion, into which a fork can be inserted and removed, is provided. .

  Therefore, by providing a large number of leg portions, the fork can be inserted and removed from a large number of directions. Further, nesting can be performed by fitting the leg portion of the upper pallet into the leg portion of the lower pallet and fitting the connecting bridge portion of the upper pallet into the connecting opening portion of the lower pallet. Furthermore, the rigidity of the whole pallet can be strengthened by connecting the lower end portions of the leg portions with the connecting bridge portion. Therefore, in this transport pallet, forks can be inserted from multiple directions, nesting can be performed, and the rigidity of the entire pallet can be maintained and strengthened.

  Further, according to the present invention, the mounting portion main body has a rectangular shape, and the plurality of leg portions include four corner leg portions provided at four corners of the rectangular plate-shaped mounting portion main body, A central leg provided at the center of the placement unit main body, and four intermediate leg units provided at an intermediate part of the four sides of the previous placement unit main body, and the connection bridge and the connection placement unit, It is provided between the corner leg part and the intermediate leg part, and provided between the central leg part and the intermediate leg part, so that the fork can be inserted and removed from four directions. Features.

  Therefore, in this transport pallet, forks can be inserted and removed from four directions, nesting is possible, and rigidity can be maintained and strengthened.

  Further, the present invention is characterized in that the leg portion is reduced in diameter as it goes downward, and the connection bridging portion is located inside an outer edge of the connection opening in a plan view.

  Therefore, in this transport pallet, nesting can be performed easily and smoothly.

  Further, the present invention is characterized in that a protruding portion that protrudes upward from the central portion to the same height as the mounting portion main body is provided at the central portion of the bottom portion of the leg portion.

  Therefore, in this pallet for transportation, the fall of the load can be prevented, and the cargo can be placed on the entire upper surface.

  Also, the present invention is characterized in that a rib projecting upward is formed inside the bottom of the leg.

  Therefore, in this pallet for transportation, it is possible to prevent the pallets from biting in the nesting state, and therefore, the pallet can be easily separated from the nesting state.

  In the present invention, nesting is possible, the fork can be inserted from multiple directions, and sufficient rigidity is provided, so that the flow line of the forklift can be shortened and no extra space is required. At the same time, the pallet can be stocked in a narrow space, and therefore a transportation pallet with high cost performance can be provided.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  In FIG. 1, the code | symbol 21 shows the pallet for conveyance which is embodiment of this invention. The carrying pallet 21 has a square plate-like mounting table main body 23. Corner leg portions 25, 25, 25, 25 are provided at the four corner portions of the mounting table main body 23 so as to protrude downward. The corner legs 25 are for supporting the four corners of the transport pallet 21. Further, intermediate legs 27, 27, 27, 27 are similarly provided in the middle of the four sides of the square mounting table body 23 so as to protrude downward at equal distances from the corner legs 25 at both ends. . The intermediate leg 27 is for supporting the middle of the four sides of the transport pallet 21. Further, a central leg 29 is similarly provided at the center of the square mounting table main body 23 so as to protrude downward. The center leg 29 is for supporting the center of the transport pallet 21.

  As shown in FIGS. 1 and 3, the transport pallet 21 has a target shape with respect to mutually symmetrical planes XX and YY including the central axis O. Accordingly, a quarter portion indicated by P in FIG. 1 in the transporting pallet 21 will be described with reference to FIGS.

  The corner leg portion 25 has a substantially square shape in plan view, and is formed in a bottomed cylindrical shape that bulges downward from the mounting table body 23. The corner leg portion 25 is horizontal to the extending side wall portion 31 and the lower end portion of the side wall portion 31. And a bottom wall 33 extending in the direction. The corner leg portion 25 is formed such that the opposing side wall portions 31, 31 approach each other and decrease in diameter as it goes downward. The corner leg portion 25 has a concave surface 35 that is recessed in a concave shape and opens upward, and a convex surface 37 that protrudes downward from the mounting table main body 23 and faces downward.

  At the center of the bottom wall portion 33 of the corner leg portion 25, a loading platform protrusion 39 is formed that is bulged upward from the bottom wall portion 33. The loading platform protrusion 39 has a side wall portion 41 extending upward and a top wall portion 43 formed at the same height as the mounting table main body at the upper end of the side wall portion 41. Accordingly, the diameter is reduced. The top wall portion 43 is used as a part of the placement surface so that the placement object is not dropped into the corner leg portion 25 when placing the placement object on the transport pallet 21. A support rib 45 having a predetermined height is formed on the bottom wall portion 33 near the loading platform protrusion 35. The support ribs 45 are provided at four locations around the loading platform protrusion 39, and the bottom wall 33 of the corner leg 25 of the transport pallet 21 placed thereon when the transport pallets are overlapped. It is supported at this position.

  Since the intermediate leg portion 27 and the central leg portion 29 have basically the same configuration as that of the corner leg portion 25, the same reference numerals are given and description thereof is omitted.

  On the inner peripheral side of the band-shaped portion between the corner leg portion 25 and the intermediate leg portion 27 of the mounting table main body 23, the first from the side wall portion 31 of the corner leg portion 25 to the side wall portion 31 of the intermediate leg portion 27. The connecting opening 51 is formed. Below the first connection opening 51, between the lower end of the side wall 31 of the corner leg 25 and the lower end of the side wall 31 of the intermediate leg 27, the first is connected. A connecting bridge portion 53 is provided. And the 1st connection bridge | crosslinking part 53 is arrange | positioned so that it may exist inside the outer edge of the 1st connection opening part 51 in planar view.

  Further, on the outer peripheral side between the corner leg portion 25 and the intermediate leg portion 27, a second connection opening 55 is formed from the side wall portion 31 of the corner leg portion 25 to the side wall portion 31 of the intermediate leg portion 27. Yes. Below the second connection opening 55, between the lower end of the side wall 31 of the corner leg 25 and the lower end of the side wall 31 of the intermediate leg 27, a second is connected. A connecting bridge 57 is provided. And the 2nd connection bridge | crosslinking part 57 is arrange | positioned so that it may exist inside the outer edge of the 2nd connection opening part 55 in planar view.

  Between the first connection opening 51 and the second connection opening 55, the placement unit main body 23 remains as it is to form a first connection placement unit 59. Both end portions of the first connection mounting portion 59 are connected to the side wall 31 of the corner leg portion 25 and the side wall 31 of the intermediate leg portion 27.

  Further, the mounting base body 23 remains as it is on the outer peripheral side of the second connection opening 55 to form a second connection mounting portion 61. Both end portions of the connection mounting portion 61 are connected to the side wall portion 31 of the corner leg portion 25 and the side wall portion 31 of the intermediate leg portion 27.

  A third connection from the side wall 31 of the intermediate leg 27 to the side wall 31 of the central leg 27 is provided on both sides of the belt-like portion between the intermediate leg 27 and the central leg 29 of the mounting table main body 23. An opening 63 and a fourth connection opening 65 are formed. Below the third connection opening 63, between the lower end of the side wall 31 of the intermediate leg 27 and the lower end of the side wall 31 of the central leg 29, a third is connected. A connecting bridge portion 67 is provided. The third connection bridge portion 67 is disposed so as to be inside the outer edge of the third connection opening 63 in plan view. Further, the fourth connecting opening 65 is provided between the lower end of the side wall 31 of the intermediate leg 27 and the lower end of the side wall 31 of the central leg 29 below the fourth connecting opening 65. The connecting bridge portion 69 is provided. The fourth connection bridge portion 69 is disposed so as to be inside the outer edge of the fourth connection opening 65 in a plan view.

  Then, between the third connecting opening 63 and the fourth connecting opening 65, the mounting portion main body 23 remains as it is to form the third connecting mounting portion 71. Both end portions of the connection mounting portion 71 are connected to the side wall portion 31 of the intermediate leg portion 27 and the side wall portion 31 of the central leg portion 29.

  Next, the usage method and effect of the transport pallet 21 having such a configuration will be described.

  First, in order to place a load on the transport pallet 21, the placement unit main body 23, the first connection placement unit 59, the second connection placement unit 61, and the third connection placement of the transport pallet 21. The load is placed on the top wall portion 43 provided at the center of the portion 71 and each leg portion. In the carrying pallet 21, the placement section main body 23, the first connection placement section 59, the second connection placement section 61, the third connection placement section 71, and the top wall section 43 have the same height. And disposed so as not to generate a large gap therebetween, the load can be stably placed and fixed on the pallet.

  In order to insert the fork F1 into the transport pallet 21, as shown in FIG. 1, the corner leg portion 25, the intermediate leg portion 27, the second connection mounting portion 61, the second connection bridge portion 57, The fork F <b> 1 is inserted into the first fork insertion / extraction space 81 surrounded by the first connection mounting portion 59 and the first connection bridge portion 53. As shown in FIGS. 5, 6, and 7, the fork F <b> 1 includes a first fork insertion / extraction space 81, a space below the mounting table body 23, an intermediate leg 27, a center leg 29, and a third connection. The second fork insertion / extraction space 83 surrounded by the placement portion 71, the third connection bridge portion 67, and the fourth connection bridge portion 69, the space below the placement table main body 23, and the first opposite side It penetrates the fork insertion / extraction space 81 and protrudes to the opposite side. Further, since the transport pallet 21 is formed in a square shape and is formed with respect to the symmetry planes XX and YY orthogonal to each other, the fork F2 is transported from a direction perpendicular to the fork F1. Even if it is inserted into the pallet 21, it can be inserted to the opposite side in the same manner.

  In this way, the transport pallet 21 can insert forks from four sides of the rectangular pallet, and therefore, it is not necessary to unnecessarily handle the forklift, and the space for handling the forklift can be reduced. Further, the time for handling the fork can be saved, and therefore the working efficiency can be improved.

  Further, as shown in FIG. 5, the carrying pallet 21 is lifted by raising the fork F1 after insertion. At this time, the fork F1 comes into contact with the lower surfaces of the placement portion main body 23, the first connection placement portion 59, the second connection placement portion 61, the third connection placement portion 71, etc., and a bending stress is applied to the pallet. However, this bending stress can be supported by the first connection bridge 53, the second connection bridge 57, the third connection bridge 67, and the fourth connection bridge 69. In particular, in this pallet 21 for transportation, between the corner leg portion 25 and the intermediate leg portion 27, a first connection placement portion 59, a second connection placement portion 61, and a first connection bridge portion. 53, the third connection bridge portion 57, the third connection bridge portion 67, and the fourth connection bridge portion 57 are provided between the intermediate leg portion 27 and the central leg portion 29 by passing over the second connection bridge portion 57. Since the box is formed as a whole by spanning the connecting bridge portion 69, the rigidity can be remarkably improved. Therefore, sufficient rigidity can be maintained as a whole pallet, and the problem of rigidity that has been a fatal defect of the conventional four-way insertion pallet can be solved.

  In addition, since the transportation pallet 21 has improved rigidity as described above, sufficient strength can be maintained even when the transportation pallet 21 is placed on the ground and cargo is placed thereon.

  Next, a method of overlapping the pallets for transportation 21 while nesting them will be described with reference to FIGS.

  First, as shown in FIG. 8 to FIG. 10, a concave surface 35 opened above the corner leg 25, the intermediate leg 27, and the center leg 29 of the lower transport pallet 21 is formed on the upper transport pallet 21. The convex surface 37 which protrudes below the corner leg part 25, the intermediate | middle leg part 27, and the center leg part 29 is fitted. Here, the corner leg portions 25 and the like are formed such that the opposing side wall portions 31 and 31 are reduced in diameter as they face downward, so that the upper corner leg portions 25 and the like are connected to the lower corner legs. It can be smoothly fitted to the portion 25 and the like.

  Along with this, the loading platform protrusion 39 such as the lower corner leg 25 is fitted into the lower recess of the loading platform projection 39 such as the upper corner leg 25. Here, since the loading platform protrusion 39 is formed so as to reduce in diameter as it goes upward, the loading platform projections are smoothly fitted.

  At this time, since the support ribs 45 are formed on the bottom wall portion 33 of the corner leg portion 25 or the like, the upper corner leg portion 25 or the like has the bottom wall portion 33 or the like of the lower corner leg portion 25 or the like. It is inserted into the lower corner leg 25 or the like up to a position where it abuts on the support rib. Therefore, it is possible to prevent the side wall portion 31 such as the upper corner leg portion 25 from biting into the side wall portion 31 such as the lower corner leg portion 25 and to easily separate the transport pallet 21 from the nesting state. it can.

  When the corner leg 25 and the like of the upper transport pallet 21 are fitted to the corner leg 25 and the like of the lower transport pallet 21, as shown in FIG. 11, the corner leg 25 and the intermediate leg 27 In the middle, the first connection opening 51 and the second connection opening 55 of the lower transport pallet 21 are connected to the first connection bridge 53 and the second connection bridge of the upper transport pallet 21, respectively. The part 57 is inserted. In addition, in the space below the first connection mounting portion 59 of the upper transportation pallet 21 and the space below the second connection mounting portion 61, the first transportation pallet 21 of the lower transportation pallet 21 is arranged. The connection mounting part 59 and the second connection mounting part 61 are fitted.

  At this time, the first connection bridge portion 53 is disposed so as to be inside the outer edge of the first connection opening 51 in a plan view, and the second connection bridge portion 57 is the second connection bridge portion 57 in the plan view. Since it arrange | positions so that it may exist inside the outer edge of the connection opening part 55, the said insertion is performed smoothly.

  Further, between the intermediate leg portion 27 and the central leg portion 29, as shown in FIGS. 11 and 12, the third connection opening 63 and the fourth connection opening 65 of the lower transport pallet 21. The third connecting bridge portion 67 and the fourth connecting bridge portion 69 of the upper transport pallet 21 are fitted into the upper space, and the space below the third connection mounting portion 71 of the upper transport pallet 21 is inserted. The third connection mounting portion 71 of the lower transport pallet 21 is fitted into the second connection pallet 71.

  At this time, the third connection bridge portion 67 is disposed so as to be inside the outer edge of the third connection opening 63 in a plan view, and the fourth connection bridge portion 69 is the fourth connection bridge portion 69 in the plan view. Since it arrange | positions so that it may exist inside the outer edge of the connection opening part 65, the said insertion is performed smoothly.

  In this way, since this pallet 21 for transportation can be easily placed in a nesting state, the stock space when not in use can be greatly reduced.

  In particular, in the transport pallet 21, the first to third connection mounts on the upper surface side are provided between the corner leg portion 25 and the intermediate leg portion 27 and between the intermediate leg portion 27 and the central leg portion 29. The mounting portions 59, 61, 71 and the first to fourth connecting bridge portions 53, 57, 67, 69 at positions spaced downward from the mounting portions 59, 61, 71 can be nested, and can be nested. Therefore, nesting can be performed while maintaining the rigidity of the pallet itself.

  In the said embodiment, although the case where a conveyance pallet is shape | molded by injection molding is demonstrated, this invention is not limited to this. As long as the structural features of the present invention are satisfied, other molding methods such as foam molding, die cast molding, vacuum molding, pressure molding, press working, etc. may be used. Parts molded by the molding method may be assembled. The material used may be any material such as synthetic resin, metal, and wood.

  Moreover, although the said embodiment demonstrated the planar view square transportation pallet, it does not need to restrict to this, A rectangular shape, circular shape, and a hexagonal shape may be sufficient. In addition, although the leg portion has a square shape in plan view, it is not limited to this, and may be circular, octagonal, or the like.

The perspective view which shows the pallet for conveyance of one embodiment of this invention. The expansion perspective view which shows 1/4 of the pallet for conveyance shown in FIG. The top view of the pallet for conveyance shown in FIG. Sectional drawing shown by the ZZ line in FIG. Sectional drawing shown by the YY line in FIG.3 and FIG.7. Sectional drawing shown by the WW line in FIG.3 and FIG.7. The top view which shows the state which inserted the fork in the pallet for conveyance shown in FIG. The perspective view which shows the state which piled up the pallet for conveyance shown in FIG. 1 by nesting. Sectional drawing shown by the SS plane in FIG. The cross-sectional perspective view shown by the SOT plane in FIG. Sectional drawing shown by the UU surface in FIG. The enlarged view of the part shown by Q in FIG. The front view which shows an example of the conventional conveyance pallet. The bottom view of the pallet for conveyance shown in FIG. The front view which shows the state which piled up the pallet for conveyance shown in FIG. 13 by nesting. The bottom view which shows the pallet for conveyance which can insert a fork from 4 directions.

Explanation of symbols

21 Carrying pallet 23 Placement part main body 25 Corner leg part 27 Intermediate leg part 29 Central leg part 39 Loading platform protrusion part 45 Support rib 51 First connection opening part 53 First connection bridge part 55 Second connection opening part 57 2nd connection bridge part 59 1st connection mounting part 61 2nd connection mounting part 63 3rd connection opening part 65 4th connection opening part 67 3rd connection bridge part 69 4th connection bridge part 71 3rd connection mounting part 81 1st fork insertion / extraction space 83 2nd fork insertion / extraction space

Claims (5)

A plate-like mounting unit body;
A plurality of bottomed cylindrical legs formed by bulging downward from the mounting body, and
A connecting opening formed by opening from one leg to the other leg in a part of a belt-like portion from the one leg to the other leg in the mounting body. And
The connection mounting part in which the connection opening is not formed in the band-shaped part,
Below the connection opening, a connection bridge portion provided by connecting and bridging the bottom portions of the adjacent one leg and the other leg,
A fork insertion / extraction space that is surrounded by the adjacent one leg part, the other leg part, the connection mounting part, and the connection bridge part, and into which a fork can be inserted and extracted;
Carrying pallet characterized by comprising The mounting unit body described above has a rectangular shape,
The plurality of leg portions include four corner leg portions provided at four corners of the rectangular plate-shaped placement portion main body, a central leg portion provided at a central portion of the placement portion main body, Four intermediate legs provided in the intermediate part of the four sides of the main part,
The connection bridging portion and the connection mounting portion are provided between the corner leg portion and the intermediate leg portion, and are provided between the central leg portion and the intermediate leg portion. The pallet for transportation according to claim 1, wherein the fork can be inserted and removed.   The said leg part is diameter-reduced as it goes below, and the said connection bridge | bridging part is located inside the outer edge of the said connection opening part in planar view, The Claim 1 or Claim 2 characterized by the above-mentioned. Pallet for transportation.   The protrusion part which protrudes to the center part of the bottom part of the said leg part from the center part upwards to the same height as the said mounting part main body was provided. The pallet for transportation as described in the item.   The transport pallet according to any one of claims 1 to 4, wherein a rib projecting upward is formed inside the bottom of the leg.

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