JP7368828B2 - palette - Google Patents

Description

The present invention relates to a pallet, and more specifically, the pallet includes an upper deck portion, a lower deck portion, a corner girder, an intermediate girder, and a center girder, and is arranged between the upper deck portion and the lower deck portion, and between the corner girder and the intermediate girder. The present invention relates to a pallet having a fork insertion opening formed between the pallets.

Conventionally, a plurality of girders were arranged between the upper deck part and the lower deck part to connect the upper deck part and the lower deck part, and a fork insertion hole was formed between the adjacent girder parts. Resin pallets are known (for example, see Patent Document 1).

The synthetic resin pallet includes corner girders, intermediate girders, and center girders as girder parts. The corner girder connects each corner of the upper deck section and each corner of the lower deck section. The intermediate girder connects the middle part of each side of the upper deck part and the middle part of each side of the lower deck part, respectively. The center girder connects the center portion of the upper deck portion and the center portion of the lower deck portion, respectively.

The central girder has a cylindrical portion that extends in the vertical direction and a partition rib that partitions the inside of the cylindrical portion.

Patent No. 5189964

However, since the ends of the partition ribs are connected to the cylindrical part, the length of the partition ribs becomes long, and as a result, there is a problem in that the weight of the entire synthetic resin pallet becomes large.

The present invention was invented in view of the above-mentioned conventional problems, and its purpose is to provide a pallet that can reduce the weight of the pallet without significantly reducing its bending strength. .

In order to solve the above problems, a pallet according to one embodiment of the present invention includes an upper deck portion formed in a rectangular shape in a plan view, a lower deck portion formed in a rectangular shape in a plan view, corner girders, and an intermediate girder. and a center girder, and is formed into a rectangular shape in plan view. The corner beams connect each corner of the upper deck portion and each corner of the lower deck portion, respectively. The intermediate girder connects a middle part of each side of the upper deck part and a middle part of each side of the lower deck part. The central girder connects a central portion of the upper deck portion and a central portion of the lower deck portion, respectively. A fork insertion opening is formed in the pallet between the upper deck portion and the lower deck portion and between the corner beam and the intermediate beam. The central girder includes a cylindrical portion extending in the vertical direction, a reinforcing rib whose end portion is connected to the cylindrical portion, and a partition rib that is connected to the reinforcing rib but not connected to the cylindrical portion.

In the pallet according to the present invention, the weight of the pallet can be suppressed without significantly reducing the bending strength of the pallet.

FIG. 1 is a perspective view of a pallet according to the first embodiment. FIG. 2 is a plan view of the same pallet. FIG. 3 is a bottom view of the same pallet as above. FIG. 4 is a side view of the same pallet. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4. FIG. 6A is a partially enlarged view of FIG. 5. FIG. 6B is a partially enlarged view of FIG. 6A. FIG. 7 is a perspective view of the central girder portion of the pallet shown above, viewed from above. FIG. 8 is a perspective view of the cross section taken along the line BB in FIG. 6, viewed obliquely from above. FIG. 9 is a perspective view of the cross section taken along the line CC in FIG. 6, viewed obliquely from above. FIG. 10 is a partially enlarged horizontal sectional view of the pallet according to the second embodiment.

The present invention relates to a pallet. DESCRIPTION OF THE PREFERRED EMBODIMENTS A pallet according to the present invention will be described below based on embodiments shown in the accompanying drawings.

The pallet according to the first embodiment will be explained based on FIGS. 1 to 9. The strength of the pallet according to the first embodiment is Class B in the JIS Z0602 test.

As shown in FIG. 1, the pallet 1 includes an upper deck portion 2, a lower deck portion 3, and a girder portion 4, and is formed into a rectangular shape in plan view. The pallet 1 is integrally molded by injection molding of synthetic resin. That is, the upper deck part 2 and the girder part 4 are integrally connected, and the lower surface deck part 3 and the girder part 4 are integrally connected. The pallet 1 in the first embodiment is designed to be used with the upper deck section 2 located on the upper side and the lower deck section 3 located on the lower side. Although the upper surface deck portion 2 and the lower surface deck portion 3 have substantially the same outline shape in plan view, they are not formed to have the same overall shape, height, etc. In the following description, the direction in which the upper surface deck portion 2 is located will be referred to as the upper side, and the direction in which the lower surface deck portion 3 will be located will be referred to as the lower side.

The upper deck portion 2 is formed in a rectangular shape in a plan view as shown in FIG. 2, and the lower deck portion 3 is formed in a rectangular shape in a bottom view (plan view) as shown in FIG. As shown in FIGS. 1 to 3, the upper deck section 2 and the lower deck section 3 are both square shaped, have the same shape, and have the same size in plan view, and are arranged so that their outer contours overlap in plan view. They are arranged vertically at intervals.

As shown in FIG. 2, the upper deck portion 2 includes a girder upper portion 21, an upper crosspiece portion 22, and an upper crosspiece portion 23. The girder upper part 21 is located above the girder part 4. The upper deck part 2 has, as the girder upper part 21, a corner girder upper part 211, an intermediate girder upper part 212, and a center girder upper part 213.

The corner girder upper portions 211 are located at each of the four corners of the upper deck portion 2 in plan view. The corner girder upper part 211 is formed by connecting a rib 24 along one side of the upper surface deck portion 2, which has a rectangular shape (square shape) in a plan view, with a rib 25 perpendicular to the rib 24. The corner girder upper part 211 is formed into a mesh shape having through holes passing through the upper and lower sides. The corner beam upper part 211 is located above the corner beam 41, which will be described later, and is formed integrally with the corner beam 41.

The intermediate girder upper portions 212 are located at intermediate portions of the four sides of the upper deck portion 2, respectively. The intermediate girder upper part 212 is formed in a mesh shape having ribs and through holes similar to the corner girder upper part 211. The intermediate spar upper part 212 is located above the intermediate spar 42, which will be described later, and is formed integrally with the intermediate spar 42.

The center girder upper part 213 is located at the center of the upper deck part 2. The center girder upper part 213 is formed into a mesh shape having ribs and through holes similar to the corner girder upper parts 211. The center girder upper part 213 is located above the center girder 43, which will be described later, and is formed integrally with the center girder 43.

The upper crosspiece 22 is located between the two girder upper parts 21 and connects the two girder upper parts 21. The upper deck portion 2 has an end upper crosspiece 221 and an inner upper crosspiece 222 as the upper crosspiece 22 .

The end upper crosspiece 221 is located between the corner beam upper part 211 and the intermediate beam upper part 212, and connects the corner beam upper part 211 and the intermediate beam upper part 212. A total of eight end crosspieces 221 are provided, two on each of the four sides of the upper deck portion 2. The upper end beam portion 221 is formed in a mesh shape having ribs and through holes similar to the corner beam upper portion 211.

The inner upper crosspiece 222 is located between the intermediate spar upper part 212 and the central spar upper part 213, and connects the intermediate spar upper part 212 and the central spar upper part 213. A total of four inner upper crosspieces 222 are provided in a cross shape at a pitch of 90 degrees from the center girder upper part 213. The inner upper crosspiece 222 is formed in a mesh shape having ribs and through holes similar to those of the upper corner beam 211.

The upper crosspiece portions 23 are located in a portion surrounded by the upper crosspieces 22 on four sides, and are connected to the upper crosspieces 22, respectively. A total of four upper interpiece portions 23 are provided. The upper crosspiece part 23 is formed in a mesh shape having ribs and through holes similar to the corner beam upper part 211.

The upper surfaces of the girder upper part 21, the upper crosspiece part 22, and the upper crosspiece part 23 of the upper surface deck part 2 are located on the same plane.

As shown in FIG. 3, the lower deck portion 3 includes a girder lower portion 31, a lower crosspiece portion 32, and a lower crosspiece portion 33. The girder lower part 31 is located below the girder part 4. The lower deck portion 3 includes a corner girder lower portion 311, an intermediate girder lower portion 312, and a center girder lower portion 313 as the girder lower portion 31.

The lower corner beams 311 are located at each of the four corners of the lower deck portion 3 in plan view. The lower corner beam 311 is formed by connecting a rib 34 along one side of the lower deck portion 3 with a rib 35 perpendicular thereto in plan view. The corner girder lower part 311 is formed into a mesh shape having a through hole passing through the upper and lower sides. The corner beam lower part 311 is located below the corner beam 41 and is formed integrally with the corner beam 41.

The intermediate girder lower portions 312 are located at intermediate portions of the four sides of the lower deck portion 3, respectively. The intermediate girder lower part 312 is formed in a mesh shape having ribs and through holes similar to the corner girder lower part 311. The lower intermediate spar 312 is located below the intermediate spar 42 and is formed integrally with the intermediate spar 42 .

The lower central girder 313 is located at the center of the lower deck portion 3. The lower part of the center girder 313 is formed in a mesh shape having ribs and through holes similar to the lower part of the corner girder 311. The lower center spar 313 is located below the center spar 43 and is formed integrally with the center spar 43.

The lower crosspiece portion 32 is located between the two girder lower portions 31 and connects the two girder lower portions 31. The lower deck portion 3 includes, as the lower crosspiece 32, an end lower crosspiece 321 and an inner lower crosspiece 322.

The lower end crosspiece 321 is located between the corner beam lower part 311 and the intermediate beam lower part 312, and connects the corner beam lower part 311 and the intermediate beam lower part 312. A total of eight lower end crosspieces 321 are provided, two on each of the four sides of the lower deck portion 3. The lower end beam portion 321 is formed in a mesh shape having ribs and through holes similar to the corner beam lower portion 311.

The inner lower crosspiece 322 is located between the intermediate spar lower part 312 and the central spar lower part 313, and connects the intermediate spar lower part 312 and the central spar lower part 313. A total of four inner lower crosspieces 322 are provided in a cross shape at a pitch of 90 degrees from the central girder lower part 313. The inner lower crosspiece portion 322 is formed in a mesh shape having ribs and through holes similar to the corner beam lower portion 311.

The lower crosspiece portions 33 are located in a portion surrounded by the lower crosspieces 32 on four sides, and are connected to the lower crosspieces 32, respectively. A total of four lower crosspiece portions 33 are provided. The lower crosspiece portion 33 is formed in a mesh shape having ribs and through holes similar to the corner beam lower portion 311.

The lower surfaces of the girder lower part 31, the lower crosspiece part 32, and the lower crosspiece part 33 of the lower deck part 3 are located on the same plane.

The lower surfaces of the girder lower part 31 and the lower crosspiece part 32 of the lower deck part 3 are located on the same plane.

As shown in FIG. 1, the girder section 4 is located between the upper deck section 2 and the lower deck section 3, and connects the upper deck section 2 and the lower deck section 3. The pallet 1 includes corner beams 41, intermediate beams 42, and center beams 43 (see FIG. 5) as the beam portions 4.

The corner beams 41 connect each corner of the upper deck portion 2 and each corner of the lower deck portion 3, respectively. Specifically, the corner beam upper part 211 of the upper surface deck part 2 and the corner beam lower part 311 of the lower surface deck part 3 located below the corner beam upper part 211 are connected by the corner beam 41, respectively. As shown in FIG. 5, a total of four corner beams 41 are provided. The corner beam 41 has a cylindrical portion 44 extending in the vertical direction. The shape of the cylindrical portion 44 in a horizontal cross section is approximately square. Furthermore, a reinforcing rib 45 is formed in the cylindrical portion 44 of the corner beam 41 by a rib along one side of the upper deck portion 2 in plan view and a rib connected orthogonally to the rib.

The intermediate girder 42 connects the middle part of each side of the upper deck part 2 and the middle part of each side of the lower deck part 3, respectively. Specifically, the intermediate spar upper part 212 of the upper surface deck part 2 and the intermediate spar lower part 312 of the lower surface deck part 3 located below the intermediate spar upper part 212 are connected by the intermediate spar 42. A total of four intermediate girders 42 are provided. Like the corner beam 41, the intermediate beam 42 has a cylindrical portion 44 that extends in the vertical direction. The shape of the cylindrical portion 44 in a horizontal cross section is approximately square. Further, a reinforcing rib 45 is formed in the cylindrical portion 44 of the intermediate beam 42 by a rib along one side of the upper deck portion 2 in plan view and a rib connected orthogonally to the rib.

The center beam 43 connects the center portion of the upper deck portion 2 and the center portion of the lower deck portion 3, respectively. Specifically, the center girder upper part 213 of the upper surface deck part 2 and the center girder lower part 313 of the lower surface deck part 3 are connected by the center girder 43. The center beam 43, like the corner beams 41 and the intermediate beam 42, has a cylindrical portion 44 that extends in the vertical direction. Hereinafter, the cylindrical portion 44 of the center beam 43 will be particularly referred to as the cylindrical portion 5, and will be distinguished from the cylindrical portion 44 of the corner beam 41 and the intermediate beam 42. The shape of the cylindrical portion 44 in a horizontal cross section is approximately square.

Furthermore, a reinforcing rib 45 is formed in the cylindrical portion 44 of the central beam 43 by a rib along one side of the upper deck portion 2 in plan view and a rib connected orthogonally thereto. Hereinafter, the reinforcing ribs 45 of the center girder 43 will be referred to as the reinforcing ribs 6 to be distinguished from the reinforcing ribs 45 of the corner girders 41 and the intermediate girders 42. The cylindrical portion 5 and reinforcing ribs 6 will be described later.

When the lower surfaces of the girder lower part 31 and the lower crosspiece part 32 of the lower surface deck part 3 are placed on a horizontal surface, the upper surfaces of the girder upper part 21, the upper crosspiece part 22 and the upper crosspiece part 23 of the upper surface deck part 2 are on the same horizontal surface. Located on a plane. That is, the thickness of the pallet 1 (that is, the vertical length between the upper surface and the lower surface) is formed to be constant.

As shown in FIG. 1, the pallet 1 has a fork insertion opening 10. As shown in FIG. The fork insertion opening 10 is formed between the upper surface deck portion 2 and the lower surface deck portion 3 and between the corner beam 41 and the intermediate beam 42. Specifically, as shown in FIG. 4, the fork insertion opening 10 has an upper end crosspiece 221 on the upper side, a lower end crosspiece 321 on the lower side, and corner beams 41 and intermediate beams 42 on the sides. This is the part surrounded by these. The fork insertion openings 10 correspond to each pair of the upper end crosspiece 221 and the lower end crosspiece 321, and two fork insertion openings 10 are provided on each of the four sides of the pallet 1, for a total of eight.

The fork insertion port 10 is open toward the side, and a fork 9 of a forklift (see broken line in FIG. 4) is inserted into the fork insertion port 10. The fork 9 is inserted through a fork insertion opening 10 formed on one side of the pallet 1, and the tip of the fork 9 slightly protrudes from the fork insertion opening 10 formed on the opposite side of the pallet 1, but it does not necessarily have to be inserted into the fork 9. The tip of the fork does not need to come out from the fork insertion opening 10. A series of spaces into which the fork 9 can be inserted is a fork insertion space 11. That is, the fork insertion space 11 is located between the upper end crosspiece 221 and the lower end crosspiece 321 (fork insertion opening 10), between the upper crosspiece part 23 and the lower crosspiece part 33, and between the inner upper crosspiece 222 and the lower crosspiece part 33. A series of lines that reach in order between the inner lower crosspiece part 322, between the upper crosspiece part 23 and the lower crosspiece part 33, and between the end upper crosspiece part 221 and the end lower crosspiece part 321 (fork insertion opening 10). It is composed of space. Two fork insertion spaces 11 are arranged side by side on one side of the pallet 1 and the side opposite thereto, and two fork insertion spaces 11 are arranged side by side on the side adjacent to one side of the pallet 1 and the side opposite thereto, so that a total of four fork insertion spaces 11 are provided. It is provided so as to form a square shape when viewed from above. The pallet 1 is a so-called four-sided pallet.

The upper deck part 2 of the pallet 1 has a girder upper part 21, an upper crosspiece part 22, and an upper crosspiece part 23, and no large opening is formed in the upper deck part 2, and the upper surface of the upper deck part 2 is used for loading. Objects are placed. In the present embodiment, the lower deck portion 3 further includes a girder lower portion 31, a lower crosspiece portion 32, and a lower crosspiece portion 33, and no large opening is formed in the lower deck portion 3. Therefore, the load is placed on the upper surface of the lower deck part 3 with the lower deck part 3 on the upper side and the upper deck part 2 on the lower side. That is, the pallet 1 of this embodiment is a double-sided pallet 1. Note that the pallet 1 may be a single-sided pallet 1.

As shown in FIGS. 6A and 7, the cylindrical portion 5 has a rectangular shape (particularly a square shape in this embodiment) in plan view. In this embodiment, the center girder upper part 213 that is integrally continuous with the upper side of the center girder 43 and the center girder lower part 313 that is integrally continuous with the lower side of the center girder 43 are also formed of a cylinder part similar to the cylinder part 5 and the reinforcing rib 6. It has reinforcing ribs. In other words, the cylindrical portion 5 and the reinforcing ribs 6 are formed across not only the central beam 43 but also the upper central beam 213 and the lower central beam 313. Note that the cylindrical portion 5 and the reinforcing ribs 6 do not need to be formed from the central beam 43 to the central beam upper portion 213 and the central beam lower portion 313, and may be formed at least on the central beam 43.

As shown in FIG. 6A, FIG. 8, and FIG. 9, the end of the reinforcing rib 6 is connected to the cylindrical portion 5. As shown in FIGS. 8 and 9, the vertical intermediate portion 61 of the reinforcing rib 6 is formed only up to a predetermined distance apart from the cylindrical portion 5 in the horizontal direction, and the upper end of the reinforcing rib 6 62 and the lower end portion 63 are formed to a point that is horizontally away from the cylindrical portion 5 by a predetermined length (the length of the intermediate portion 61) or more.

A top plate portion 64 is formed between upper end portions 62 of adjacent reinforcing ribs 6 . As shown in FIG. 7, the top plate part 64 includes four rectangular top plate parts 641 formed at the corners of a rectangular area surrounded by the cylindrical part 5 in plan view, and an L-shaped top plate part 641. Four top plate portions 642 having a shape are formed. However, the top plate portion 641 is formed not between the upper end portions 62 of adjacent reinforcing ribs 6 but between the upper end portion 62 of the reinforcing rib 6 and the upper end portion of the cylinder portion 5. Note that the shape of the top plate portion 64 is not limited. Moreover, although the top plate part 64 is formed in this embodiment, the top plate part 64 does not need to be formed in particular.

A bottom plate portion 65 is formed between the lower end portions 63 of adjacent reinforcing ribs 6 . As shown in FIGS. 6A and 7, the bottom plate portion 65 includes four L-shaped bottom plate portions 651 and one cross-shaped bottom plate portion 652 in plan view. Note that the shape of the bottom plate portion 65 is not limited. Moreover, although the bottom plate part 65 is formed in this embodiment, the bottom plate part 65 does not need to be formed in particular.

As shown in FIG. 7, the top plate part 64 and the bottom plate part 65 are formed at shifted positions in a plan view. As shown in FIG. 8, the bottom plate portion 65 is located below the upper mold (see broken line 81 in FIG. 8) of the mold for molding the pallet 1 when the pallet 1 is molded. Further, as shown in FIG. 9, the top plate portion 64 is located above the lower mold (see broken line 82 in FIG. 9) of the mold for molding the pallet 1 when the pallet 1 is molded.

The central beam 43 further includes a partitioning rib 7. The partition ribs 7 are connected to the reinforcing ribs 6 (particularly the reinforcing ribs 6 connected to the upper rail portion 22 or the lower rail portion 32) and are not connected to the cylindrical portion 5. The partition rib 7 roughly partitions the space surrounded by the cylindrical portion 5. Note that the space surrounded by the cylindrical portion 5 does not have to be completely divided by the partition rib 7. In this embodiment, as shown in FIG. 6A, the partition rib 7 is formed in an X-shape in plan view.

As described above, since the partition rib 7 is not connected to the cylindrical part 5, the length of the partition rib 7 is reduced compared to the case where the end of the partition rib 7 extends to the cylindrical part 5 and is connected to the cylindrical part 5. is short. As a result, the weight of the entire pallet 1 can be suppressed by reducing the length of the partition rib 7. At this time, there is a possibility that the bending strength of the pallet 1 may decrease slightly, but overall, the bending strength of the pallet 1 does not decrease much, and there is no problem in practical use.

Further, as shown in FIG. 6B, the longitudinal end portion of the partition rib 7 in the horizontal direction is a protruding end portion 71 that protrudes from the reinforcing rib 6. As shown in FIG. A protruding end portion 71 protrudes from a corner of a space 50 located below the top plate portion 641 (see FIGS. 7 and 9) and having a rectangular shape in plan view surrounded by the cylinder portion 5 and reinforcing ribs 6. There is. The space 50 is formed by the lower mold 82 as shown in FIG. The lower mold 82 is pulled out downward from the pallet 1, but at this time, the corner of the lower mold 82 touches the wall surface of the corner formed by the cylindrical portion 5 and the reinforcing rib 6 (the corner of the space 50). There is a possibility that the lower die 82 will be difficult to come off from the pallet 1 due to the friction caused by being pushed. In this embodiment, since the protruding end portion 71 protrudes from the corner formed by the cylindrical portion 5 and the reinforcing rib 6 and the corner of the space 50 is not formed, the corner of the lower mold 82 is located between the cylindrical portion 5 and the reinforcing rib. The lower mold 82 is prevented from being pushed and caught by the wall surface of the corner formed by the pallet 1, and the lower mold 82 is prevented from coming off from the pallet 1, and the durability of the lower mold 82 is improved. In this embodiment, the lower mold 82 corresponds to the corner formed by the cylindrical portion 5 and the reinforcing rib 6, but the upper mold 81 may correspond to the corner.

Further, as shown in FIG. 7, the upper end portion of the partition rib 7 is connected to the top plate portion 64. The upper end of the partition rib 7 is connected to the top plate 64, so that the upper end of the partition rib 7 does not come into contact with the load placed on the top surface of the pallet 1, but the top surface of the top plate 64 comes into contact with it. Therefore, marks from the edges of the partition ribs 7 are prevented from being left on the loaded items.

Further, as shown in FIG. 8, the cross section 72 of the partition rib 7 located above the bottom plate portion 65 (the cross section perpendicular to the longitudinal direction of the partition rib 7 in the horizontal direction) has a thickness that becomes thinner as it goes upward. It has a taper. This makes it easier for the upper die 81 to come out upward from the pallet 1.

Further, as shown in FIG. 9, the cross section 73 of the partition rib 7 located below the top plate portion 64 (the cross section perpendicular to the longitudinal direction of the partition rib 7 in the horizontal direction) becomes thinner as it goes downward. It has a large taper. This makes it easier for the lower die 82 to come out downward from the pallet 1.

In this embodiment, the thickness of the thinnest part of the partition rib 7 is formed to be equal to the thickness of the ribs other than the partition rib 7 (including the reinforcing rib 6). Note that the thickness of the thinnest portion of the partition rib 7 may be formed to be thicker than the thickness of ribs other than the partition rib 7 (including the reinforcing rib 6).

Next, a pallet 1 according to a second embodiment will be described based on FIG. 10. Note that the pallet 1 of the second embodiment is mostly the same as the pallet 1 of the first embodiment. Therefore, descriptions that overlap with those of the first embodiment will be omitted.

In the first embodiment, the partition rib 7 is formed in an X-shape in plan view. On the other hand, in the second embodiment, the partition rib 7 is formed in a square shape when viewed from above. Note that the reinforcing ribs 6 are the same as in the first embodiment. In this way, even in the partition rib 7 formed in a square shape in plan view, since the partition rib 7 is not connected to the cylindrical part 5, the length of the partition rib 7 is shortened, and the weight of the entire pallet 1 is reduced. It can be suppressed.

Further, as still another example of the partition rib 7, it may be formed approximately in an X-shape in a plan view, and the central portion where the X-shape intersects may be formed in a square-shape. That is, the partitioning rib 7 may have a square shape at the center and may extend radially from each corner. Note that the reinforcing ribs 6 are the same as in the first embodiment.

Further, as yet another example of the partitioning ribs 7, a plurality of partitioning ribs 7 may be arranged in parallel at intervals so as to extend in the same direction.

Further, as yet another example of the partition rib 7, the partition rib 7 is substantially the same as the first embodiment, but the reinforcing rib 6 is different from the first embodiment. That is, in the bottom plate part 65 of the reinforcing rib 6, only four L-shaped bottom plate parts 651 are formed, and one cross-shaped bottom plate part 652 is not formed. In this case, the bending strength of the pallet 1 is improved by connecting the ends of the partition ribs 7 to the bottom plate portions 651, respectively.

As is clear from the above-described first to second embodiments and their modifications, the pallet (1) of the first aspect includes an upper deck portion (2) formed in a rectangular shape in plan view; It is formed in a rectangular shape in a plan view, including a lower deck part (3), a corner beam (41), an intermediate beam (42), and a center beam (43), which are formed in a rectangular shape in a plan view. The corner beams (41) connect each corner of the upper deck part (2) and each corner of the lower deck part (3), respectively. The intermediate girder (42) connects the middle part of each side of the upper deck part (2) and the middle part of each side of the lower deck part (3), respectively. The center girder (43) connects the center portion of the upper deck portion (2) and the center portion of the lower deck portion (3), respectively. A fork insertion opening (10) is formed in the pallet (1) between the upper deck part (2) and the lower deck part (3) and between the corner girder (41) and the intermediate girder (42). be done. The central girder (43) includes a cylindrical portion (5) extending in the vertical direction, a reinforcing rib (6) whose end is connected to the cylindrical portion (5), and a reinforcing rib (6) that is connected to the reinforcing rib (6) and has a cylindrical portion ( 5), which is not connected to the partition rib (7).

According to the first aspect, the length of the partition rib (7) is longer than that in the case where the end of the partition rib (7) extends to the cylinder part (5) and is connected to the cylinder part (5). It's short. As a result, the weight of the entire pallet (1) is suppressed by the shortening of the length of the partition rib (7), and the bending strength of the pallet 1 does not decrease much.

The second aspect can be realized in combination with the first aspect. In the second aspect, the partition rib (7) is formed in an X-shape in plan view.

According to the second aspect, even in the partition rib (7) formed in a square shape in plan view, the partition rib (7) is not connected to the cylindrical portion (5), so that the length of the partition rib (7) is reduced. As the length becomes shorter, the weight of the entire pallet (1) can be reduced.

1 Pallet 10 Fork insertion slot 2 Top deck part 3 Bottom deck part 41 Corner girder 42 Intermediate girder 43 Center girder 5 Cylindrical part 6 Reinforcement rib 7 Partition rib

Claims (2)

an upper deck portion formed in a rectangular shape in plan view;
a lower deck portion formed in a rectangular shape in plan view;
comprising a girder part;
The girder part is
a corner beam that connects each corner of the upper deck portion and each corner of the lower deck portion;
an intermediate girder that connects a middle part of each side of the upper deck part and a middle part of each side of the lower deck part;
A center girder that connects the center part of the upper deck part and the center part of the lower deck part,
A pallet formed in a rectangular shape in a plan view, in which a fork insertion opening is formed between the upper deck part and the lower deck part and between the corner girder and the intermediate girder,
The beam part has a cylinder part extending in the vertical direction, a reinforcing rib whose end is connected to the cylinder part, and a partition rib connected to the reinforcing rib but not connected to the cylinder part ,
A longitudinal end of the partition rib in the horizontal direction is a protruding end that protrudes from the reinforcing rib.
palette. The pallet according to claim 1, wherein the partition rib is formed in an X-shape in plan view.

Images