palette

Abstract

Provides a pallet that is easy to detach from a nested state. [Solution] The pallet 1 integrally comprises a deck section 2 formed in a rectangular shape in plan view, and a plurality of support legs 4 projecting downward at at least four corners of the deck section 2. The deck section 2 has recesses at positions corresponding to each support leg 4 in plan view, into which the support leg 4 can be inserted from above. The outer part 44 of each support leg 4 is inclined to move inward as it goes downward. The inner part 45 of each support leg 4 is inclined to move outward as it goes downward. The angle that the normal vector 440 of the outer part 44 makes with respect to the upper surface of the deck section 2 is at least twice the angle that the normal vector 450 of the inner part 45 makes with respect to the upper surface of the deck section 2.

Description

Technical Field

[0001] The present invention relates to a pallet, and more particularly to a pallet having a deck portion and leg portions, wherein the deck portion has recesses into which the leg portions can be inserted.

Background Art

[0002] Conventionally, there is a synthetic resin pallet having a corner leg group composed of cup-shaped legs formed at four corners of a placement portion, an intermediate leg group composed of similarly cup-shaped legs formed in the middle of the corner leg group, and a central leg group composed of similarly cup-shaped legs formed at the center of the placement portion, and capable of full nesting and half nesting (see, for example, Patent Document 1).

[0003] In the invention disclosed in Patent Document 1, full nesting is possible in which substantially all of the legs of the synthetic resin pallet located above are inserted into the legs of the synthetic resin pallet located below and stacked.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the invention disclosed in Patent Document 1, in the upper and lower synthetic resin pallets in the full nesting state, it was difficult to remove the upper synthetic resin pallet from the lower synthetic resin pallet.

[0006] The present invention has been invented in view of the above conventional problems, and an object thereof is to provide a pallet that is easy to separate from the nesting state.

Means for Solving the Problems

[0007] To solve the above problems, one embodiment of the pallet according to the present invention integrally comprises a deck portion formed in a rectangular shape in plan view and a plurality of support legs projecting downward at at least four corners of the deck portion. The deck portion has recesses at positions corresponding to each support leg in plan view into which the support leg can be inserted from above. The support legs are composed of cylindrical members having recesses inside and opening upward. In each support leg, in plan view, the side of the outer edge of the deck portion adjacent to the support leg is considered the outside, and the opposite side is considered the inside, with the center of the support leg as the reference point. The outer portion of each support leg is inclined to move inward as it goes downward. The inner portion of each support leg is inclined to move outward as it goes downward. The angle that the normal vector of the outer portion makes with respect to the upper surface of the deck portion is at least twice the angle that the normal vector of the inner portion makes with respect to the upper surface of the deck portion. [Effects of the Invention]

[0008] The pallet according to the present invention is easy to detach from the nested state. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a perspective view of a pallet according to one embodiment, seen from diagonally above. [Figure 2] Figure 2 is a perspective view of the same palette, seen from diagonally below. [Figure 3] Figure 3 is a plan view of the same pallet. [Figure 4] Figure 4 is a bottom view of the same pallet. [Figure 5] Figure 5A is a side view of the long side of the pallet shown above. Figure 5B is a side view of the short side of the pallet shown above. [Figure 6] Figure 6A is a cross-sectional view of the first support leg of the pallet shown above, cut by a horizontal plane at the middle of the vertical direction. Figure 6B is a cross-sectional view of the first support leg shown above, cut by a vertical plane along the long side direction. [Figure 7] Figure 7A is a cross-sectional view of the first support leg of the pallet shown above, cut by a horizontal plane at the middle of the vertical direction. Figure 7B is a cross-sectional view of the first support leg shown above, cut by a vertical plane along the long side direction. [Figure 8] Figure 8A is a cross-sectional view of the inter-leg ribs in the same pallet, cut in a vertical plane. Figure 8B is a cross-sectional view of the non-inter-leg ribs in the same pallet, cut in a vertical plane. [Modes for carrying out the invention]

[0010] This invention relates to a pallet. The pallet according to the present invention will be described below based on embodiments shown in the accompanying drawings.

[0011] (1) Palette A pallet according to one embodiment will be described based on Figures 1 to 8B.

[0012] As shown in Figures 1 and 2, the pallet 1 comprises a deck section 2 and a plurality of support legs 4, and is formed in a rectangular shape in plan view. The pallet 1 is integrally molded by injection molding of synthetic resin. That is, the deck section 2 and the plurality of support legs 4 are each integrally connected.

[0013] The pallet 1 comprises, as a plurality of support legs 4, at least four corner support legs 41 that protrude downward at the four corners of the deck section 2. In this embodiment, the pallet 1 further comprises, as support legs 4, four intermediate support legs 42 that protrude downward at the midpoint of each side of the deck section 2, and one central support leg 43 that protrudes downward at the center of the deck section 2.

[0014] (2) Deck section As shown in FIGS. 3 and 4, the deck portion 2 is formed in a rectangular shape in plan view. The shape of the deck portion 2 in plan view is the same as the shape of the pallet 1 in plan view. In plan view, the side along the longitudinal direction of the deck portion 2 is defined as the long side 21, and the side along the short side direction of the deck portion 2 is defined as the short side 22. The deck portion 2 may be formed in a square shape in plan view, or may not be formed in a rectangular shape in plan view.

[0015] (2.1) Rib The deck portion 2 has ribs 3 in a lattice shape in plan view. That is, the ribs 3 include ribs (hereinafter referred to as horizontal ribs 31 for convenience) extending in the direction along the long side 21 (referred to as the long side direction 210) and ribs (hereinafter referred to as vertical ribs 32 for convenience) extending in the direction along the short side 22 (referred to as the short side direction 220). The cross-sectional shape of the rib 3 in a cross-section orthogonal to the direction in which the rib 3 extends is a rectangular shape extending vertically. The rib 3 only needs to include at least a portion in a lattice shape in plan view including the ribs extending in the long side direction 210 and the ribs extending in the short side direction 220, and may include ribs (such as diagonal ribs) extending in a direction that is neither the long side direction 210 nor the short side direction 220. The cross-sectional shape of the rib 3 is not limited to a rectangular shape.

[0016] The upper surfaces of the lattice-shaped ribs 3 are located on the same plane, and the placement surface 11, which is the upper surface of the pallet 1 (the upper surface of the deck portion 2), is formed by the upper surfaces of the ribs 3. The upper surfaces of the ribs 3 located on the placement surface 11 serve as support portions for supporting the loads placed on the placement surface 11. Note that, in the present embodiment, since the support portion of the deck portion 2 is constituted by the lattice-shaped ribs 3 of the deck portion 2, it is configured in a mesh shape rather than a planar shape. Of course, the support portion of the pallet 1 may be planar. When the pallet 1 is placed on a horizontal plane, the placement surface 11 becomes a horizontal plane.

[0017] The deck portion 2 is mainly divided into a portion where the support legs 4 are located, a portion located between two support legs 4 adjacent in the long side direction 210 or the short side direction 220, and the other portions.

[0018] (2.2) Recess Among the deck part 2, the portion where the support leg part 4 is located has a rectangular shape in plan view. In this portion, no rib 3 is formed, and no support part for supporting the load is formed. In the portion of the deck part 2 where the support leg part 4 is located, a cylindrical member 40 constituting the support leg part 4 is disposed. The cylindrical member 40 has a concave portion 20 inside and opens upward. The cylindrical member 40 constitutes a part of the deck part 2 and the support leg part 4. By forming the cylindrical member 40, the deck part 2 has concave portions 20 at positions corresponding to the respective support leg parts 4 in plan view, into which the support leg parts 4 of another deck part 2 can be inserted from above. The deck part 2 has a total of nine concave portions 20, namely, four concave portions 20 located at the four corners of the deck part 2, four concave portions 20 located at the middle portions of each side of the deck part 2, and one concave portion 20 located at the central portion of the deck part 2.

[0019] (2.3) Inter-leg part Among the deck part 2, the portion located between two adjacent support leg parts 4 in the long side direction 210 or the short side direction 220 becomes an inter-leg part 23 having a rectangular shape in plan view. The inter-leg part 23 serves as a crossbar installed between two support leg parts 4.

[0020] The deck part 2 has four inter-leg parts 23 formed between a corner support leg part 41 and an intermediate support leg part 42 adjacent in the long side direction 210, and two inter-leg parts 23 formed between an intermediate support leg part 42 and a central support leg part 43 adjacent in the long side direction 210. Further, the deck part 2 has four inter-leg parts 23 formed between a corner support leg part 41 and an intermediate support leg part 42 adjacent in the short side direction 220, and two inter-leg parts 23 formed between an intermediate support leg part 42 and a central support leg part 43 adjacent in the short side direction 220.

[0021] The inter-leg part 23 is constituted by an inter-leg rib 33 that connects adjacent support leg parts 4 among the ribs 3. The inter-leg rib 33 is installed between two cylindrical members 40 adjacent in the long side direction 210 or the short side direction 220. More specifically, the inter-leg rib 33 is constituted by a plurality of connecting ribs 331 that connect two cylindrical members 40 adjacent in the long side direction 210 or the short side direction 220, and intersecting ribs 332 that extend in a direction intersecting (orthogonal in this embodiment) with the connecting ribs 331 and are installed between the connecting ribs 331.

[0022] (2.4) Non-interlegual area Of the deck section 2, the portion excluding the portion where the recess 20 is formed and the portion where the leg space 23 is formed becomes a non-leg space section 24, which is rectangular in plan view. The non-leg space section 24 is the portion surrounded by the four leg space sections 23 which are arranged in a rectangular shape in plan view, and becomes a span section that is installed between these leg space sections 23.

[0023] The non-inter-leg section 24 is composed of non-inter-leg ribs 34, which are the ribs 3 excluding the inter-leg ribs 33. The non-inter-leg ribs 34 are composed of a transverse rib 341 that extends in the long-side direction 210 and is installed between two adjacent inter-leg sections 23, 23 in the long-side direction 210, and a longitudinal rib 342 that extends in the short-side direction 220 and is installed between two adjacent inter-leg sections 23, 23 in the short-side direction 220.

[0024] (3) Support legs As described above, the pallet 1 is provided with support legs 4, including corner support legs 41, intermediate support legs 42, and a central support leg 43. Recesses 20 are formed in the deck section 2 where the support legs 4 are located. This allows the support legs 4 of the upper pallet 1 to be inserted into the corresponding recesses 20 of the lower pallet 1, enabling a nesting configuration where the support legs 4 are inserted in a nested manner and the pallets 1 are stacked.

[0025] (3.1) Corner support leg The corner support legs 41 protrude downward at the corners of the deck section 2. The pallet 1 is provided with four corner support legs 41.

[0026] (3.2) Intermediate support legs The intermediate support legs 42 protrude downward from the middle of each side of the deck section 2. The pallet 1 is provided with four intermediate support legs 42.

[0027] (3.3) Central support leg The central support leg 43 protrudes downward from the center of the deck section 2. One central support leg 43 is provided on the pallet 1.

[0028] (3.4) Fork insertion opening As shown in Figures 5A and 5B, a fork insertion opening 10 is formed below the deck section 2, between the corner support leg 41 and the intermediate support leg 42. As shown in Figure 5A, the fork insertion opening 10 is formed on the long side 21 of the deck section 2, between the corner support leg 41 and the intermediate support leg 42 adjacent in the long side direction 210, and a fork insertion space extending in the short side direction 220 is formed behind this fork insertion opening 10. Also, as shown in Figure 5B, the fork insertion opening 10 is formed on the short side 22 of the deck section 2, between the corner support leg 41 and the intermediate support leg 42 adjacent in the short side direction 220, and a fork insertion space extending in the long side direction 210 is formed behind this fork insertion opening 10. In this embodiment, the pallet 1 is a so-called four-way entry pallet.

[0029] (3.5) Cylindrical member The support leg portion 4 is made up of the cylindrical member 40 described above (more precisely, the portion of the cylindrical member 40 excluding the upper end portion that constitutes the deck portion 2). As shown in Figures 2, 6A to 7B, the cylindrical member 40 has a cylindrical side wall portion 401 and a bottom wall portion 402 formed at the lower end of the side wall portion 401. An opening 403 for draining water is formed in the bottom wall portion 402. In addition, a partition rib 404 is formed in the middle of the bottom wall portion 402, extending linearly in a plan view and projecting upward. By providing the partition rib 404 in the bottom wall portion 402, deformation such as spreading of the cylindrical member 40 (support leg portion 4) can be prevented, thereby improving the compressive strength of the pallet 1.

[0030] (3.6) Outer and inner sides of the support legs Here, we define the outer and inner sides of the support leg 4. As shown in Figure 3, in each support leg 4, the center 400 of the support leg 4 of interest in a plan view is used as the reference point. In this support leg 4 of interest, the side with the outer edge of the deck section 2 adjacent to the support leg 4 is considered the outer side, and the opposite side is considered the inner side.

[0031] For example, in the case of the intermediate support leg 42 in the center of the upper long side 21 in Figure 3, the outer edge of the deck section 2 adjacent to this intermediate support leg 42 is the upper long side 21, so the outside is the side of the upper long side 21, and the part on the side of the upper long side 21 becomes the outer part 44, which is located on the outside. Also, the part of the support leg 4 opposite to the outer part 44 (the opposing side) becomes the inner part 45, which is located on the inside. In this embodiment, the parts of the support leg 4 other than the outer part 44 do not face the outside of the pallet 1, so they are included in the inner part 45.

[0032] Furthermore, for example, in the case of the right corner support leg 41 of the upper long side 21 in Figure 3, the outer edge of the deck section 2 adjacent to this corner support leg 41 is the upper long side 21 and the right short side 22, so the outside is the side of the upper long side 21 and the side of the right short side 22. Also, the outer part 44 of this corner support leg 41 is the outer part 441 on the side of the upper long side 21 and the outer part 442 on the side of the right short side 22, and the inner part 45 of this corner support leg 41 is the inner part 451 on the opposite side (opposing side) of the outer part 441 and the inner part 452 on the opposite side (opposing side) of the outer part 442.

[0033] Although there is no need to distinguish the central support leg portion 43 into an outer portion 44 and an inner portion 45, for convenience, they are distinguished as shown in Figures 7A and 7B.

[0034] (4) Various configurations The various configurations of the pallet 1 according to this embodiment will be described below.

[0035] (4.1) Shape of the support legs As shown in Figure 2, in this embodiment, the support legs 4 are classified into two types from the viewpoint of shape: a first support leg 4A and a second support leg 4B. The first support leg 4A is a support leg 4 located at the end of the long side direction 210, and specifically consists of a group of support legs 4 consisting of a corner support leg 41 and an intermediate support leg 42 located along the short side 22. The second support leg 4B is a support leg 4 located in the center of the long side direction 210, and specifically consists of a group of support legs 4 consisting of an intermediate support leg 42 located along the long side 21 and a central support leg 43.

[0036] Figure 6A shows a cross-sectional view of the first support leg 4A cut by a horizontal plane at the middle of its vertical direction, and Figure 6B shows a cross-sectional view of the first support leg 4A cut by a vertical plane along the long side direction 210. Figure 7A shows a cross-sectional view of the second support leg 4B cut by a horizontal plane at the middle of its vertical direction, and Figure 7B shows a cross-sectional view of the second support leg 4B cut by a vertical plane along the long side direction 210.

[0037] In this embodiment, as shown in Figures 6A to 7B, each support leg 4 has a curved outer shape in plan view. The curvature of a portion of the curved part 405 of the inner part 45 is formed to be the greatest. In this embodiment, the support leg 4 is roughly rectangular in shape, extending in the long side direction 210.

[0038] As shown in Figures 6A and 6B, in a plan view, the first support leg 4A has curved sections 405 formed at both ends of the long side 210 end (short side 220 end) of the inner part 45, where the curvature is greatest and the radius of curvature is smallest. As shown in Figures 7A and 7B, in a plan view, the second support leg 4B has curved sections 405 formed at the four corners of the rectangular cylindrical member 40.

[0039] As shown in Figures 5A and 5B, a recess 406 is formed in the side wall portion 401 of the cylindrical member 40. Specifically, the recess 406 is formed in the central part of the portion of the side wall portion 401 that extends along the long side direction 210, recessed toward the recess 20. By forming the recess 406 in the side wall portion 401 of the cylindrical member 40 in this way, the cross-sectional shape of the side wall portion 401 becomes more complex, improving the strength and rigidity of the cylindrical member 40.

[0040] The recess 406 has a trapezoidal shape when viewed from the front (side) of the side wall portion 401. As a result, the edges at the ends of the recess 406 in the long side direction 210 are not parallel, further improving the strength and rigidity of the cylindrical member 40.

[0041] As shown in Figure 4, some of the interleg ribs 33 are configured to connect the recesses 406 of adjacent cylindrical members 40 (support legs 4) in the short-side direction 220. This improves the strength and rigidity of the pallet 1.

[0042] Furthermore, in a plan view, the partition ribs 404 (see Figures 6A and 7A) formed inside the cylindrical member 40 and the interleg ribs 33 connecting the recesses 406 are formed in a straight line, which further improves the strength and rigidity of the pallet 1.

[0043] (4.2) Inclination of the outer and inner parts of the support legs In each support leg 4, the outer portion 44 is inclined to be located inward as it goes downward, and the inner portion 45 is inclined to be located outward as it goes downward. In short, the support leg 4 has a shape that tapers towards the bottom. For at least some of the support legs 4, the angle θ1 that the normal vector 440 of the outer portion 44 makes with respect to the upper surface of the deck portion 2 is at least twice the angle θ2 that the normal vector 450 of the inner portion 45 makes with respect to the upper surface of the deck portion 2.

[0044] Specifically, in the first support leg portion 4A, as shown in Figures 6A and 6B, the angle θ1 that the normal vector 440 of the portion located at the end of the long side direction 210 of the outer portion 44 makes with respect to the upper surface of the deck portion 2 is at least twice the angle θ2 that the normal vector 450 of the portion located at the end of the long side direction 210 of the inner portion 45 makes with respect to the upper surface of the deck portion 2. θ1 is between 6° and 60°, and θ2 is between 3° and 15°, but the values ​​of θ1 and θ2 are not limited. θ2 is the angle given by the normal draft angle, and θ1 is at least twice the normal draft angle. In this way, by having a portion of the side wall portion 401 that is at angle θ1, it becomes easier to detach the support leg portion 4 of the upper pallet 1 from the recess 20 of the lower pallet 1 in the nesting state.

[0045] In particular, in the nested state, by lifting the other end of the upper pallet 1 upwards with one end in the long side direction 210 as the central axis, the first support leg 4A on the other end side easily detaches from the recess 20 of the lower pallet 1.

[0046] (4.3) Shape of the ribs on the deck A rectangular interleg rib 333 is provided, with its vertices connecting the inner part 45 of the first corner support leg 41, the inner parts 45 of the two intermediate support legs 42 adjacent to the first corner support leg 41, and the inner part 45 of the central support leg 43. Specifically, as shown in Figure 4, the interleg rib 33 in question connects the curved portion 405 formed on the corner support leg 41, the two intermediate support legs 42 adjacent to the corner support leg 41 in the long side direction 210 and the short side direction 220, and the central support leg 43. By providing this rectangular interleg rib 333, the load on the support leg 4 can be transferred to the interleg rib 333, improving the strength and rigidity of the pallet 1.

[0047] As shown in Figures 8A and 8B, the thickness t11 of the inter-leg rib 333 extending in the long-side direction 210 (excluding the upper end of the inter-leg rib 333) in a plan view is 1.5 times or more the thickness t21 of the non-inter-leg rib 34 (excluding the upper end of the non-inter-leg rib 34). Furthermore, in this embodiment, in a plan view, the thickness t11 of the inter-leg rib 333 extending in the short-side direction 220 is smaller than the thickness t11 of the inter-leg rib 333 extending in the long-side direction 210, and larger than the thickness t21 of the non-inter-leg rib 34. In this way, by keeping the thickness t21 of the non-inter-leg rib 34 small, the weight of the pallet 1 can be reduced, and by making the thickness t11 of the inter-leg rib 333 1.5 times or more the thickness t21, the strength and rigidity of the pallet 1 can be ensured.

[0048] In this embodiment, a horizontally extending flange portion 334 is formed on the upper edge of the inter-leg rib 333. Additionally, a horizontally extending flange portion 343 is formed on the upper edge of the non-inter-leg rib 34.

[0049] The thickness of the upper edge of the inter-leg rib 333 (i.e., the width t12 of the flange portion 334) is more than twice the thickness of the non-inter-leg rib 34 (i.e., the width t22 of the flange portion 343). By making the thickness (width t12) of the upper edge of the inter-leg rib 333 more than twice the thickness (width t22) of the upper edge of the non-inter-leg rib 34 in this way, the strength and rigidity of the pallet 1 can be easily improved.

[0050] Furthermore, in a plan view, the length of the flange portion 334 from the inter-leg rib 333 is such that the length of the portion protruding inward (towards the non-inter-leg rib 34 side) from the inter-leg rib 333 is longer than the length of the portion protruding outward from the inter-leg rib 333. Also, the width t12 of the flange portion 334 is more than half the vertical length of the inter-leg rib 333, and is smaller than the vertical length of the inter-leg rib 333. By making the width t12 of the flange portion 334 smaller than the vertical length of the inter-leg rib 333, it is possible to reduce the weight of the pallet 1 while ensuring strength and rigidity.

[0051] Furthermore, because the radius of curvature of the inner corner of the flange portion 334 is made large, for example, 3 to 10 mm (see Figure 4), stress concentration is less likely to occur and stress can be distributed, which in turn makes it easier to improve the strength and rigidity of the pallet 1.

[0052] Furthermore, ejector pins 12 are provided on the inside of the point where the interleg rib 333 extending in the long side direction 210 and the interleg rib 333 extending in the short side direction 220 are connected.

[0053] (4.4) Bending stiffness of the pallet When two 500kg pipes were placed on the upper surface (mounting surface 11) of the deck section 2 between the support legs 4 of pallet 1, i.e., the upper surface (mounting surface 11) of the non-leg section 24, the deformation of the non-leg section 24 was measured, and a downward deformation of 5mm or more and 15mm or less was observed in the part on which the pipes were placed.

[0054] If the bending rigidity of pallet 1 is low, in the nesting state, when lifting the other end of the upper pallet 1 upward with one end in the long side direction 210 as the central axis, the upper pallet 1 will bend, making it difficult for the first support leg portion 4A on the other end side to detach from the recess 20 of the lower pallet 1. By increasing the bending rigidity of pallet 1, in the nesting state, when lifting the other end of the upper pallet 1 upward with one end in the long side direction 210 as the central axis, the first support leg portion 4A on the other end side of the upper pallet 1 will detach more easily from the recess 20 of the lower pallet 1.

[0055] (5) Variant Next, a modified example of the above-described embodiment will be explained.

[0056] The intermediate support legs 42 and the central support legs 43 are optional and therefore do not need to be provided on the pallet 1.

[0057] The deck section 2 may be formed in a square shape in plan view, or it may not be formed in a rectangular shape in plan view.

[0058] Rib 3 may include at least a portion that is grid-like in plan view, which includes ribs extending in the long-side direction 210 and ribs extending in the short-side direction 220, and may also include ribs extending in a direction other than the long-side direction 210 and the short-side direction 220. The cross-sectional shape of rib 3 is not limited to a rectangular shape.

[0059] The mounting surface 11 does not have to be a strictly horizontal plane or a strictly flat plane when the pallet 1 is placed on a horizontal surface.

[0060] The shape of the recess 20 in plan view is not limited to a rectangular shape. The shape of the leg space 23 in plan view is not limited to a rectangular shape. The shape of the non-leg space 24 in plan view is not limited to a rectangular shape. The pallet 1 is not limited to a four-way entry pallet.

[0061] The shape of the support leg 4 is not limited to two types, such as the first support leg 4A and the second support leg 4B; there may be three or more types, or there may be only one type.

[0062] (6) Summary As is clear from the embodiments and their modifications described above, the pallet 1 of the first embodiment integrally comprises a deck portion 2 formed in a rectangular shape in plan view and a plurality of support legs 4 projecting downward at at least four corners of the deck portion 2. The deck portion 2 has recesses 20 in a position corresponding to each support leg 4 in a plan view into which the support leg 4 can be inserted from above. The support leg 4 is composed of a cylindrical member 40 that has a recess 20 inside and opens upward. In each support leg 4, in a plan view, the side of the outer edge of the deck portion 2 adjacent to the support leg 4 is considered the outside, and the opposite side is considered the inside, with the center 400 of the support leg 4 as the reference point. The outer portion 44 of each support leg 4 is inclined to be positioned further inward as it goes downward. The inner portion 45 of each support leg 4 is inclined to be positioned further outward as it goes downward. The angle that the normal vector 440 of the outer part 44 makes with respect to the upper surface of the deck part 2 is at least twice the angle that the normal vector 450 of the inner part 45 makes with respect to the upper surface of the deck part 2.

[0063] According to the first embodiment, in the nested state, the support legs 4 of the upper pallet 1 become easier to detach from the recesses 20 of the lower pallet 1.

[0064] A second embodiment can be realized by combining it with the first embodiment. In the second embodiment, each support leg 4 has a curved outer casing in plan view, with the curvature of the curve on the inner part 45 being the greatest. The deck 2 has a grid-like arrangement of ribs 3 in plan view, and the thickness t11 in plan view of the inter-leg ribs 33 that extend in the direction of the long side of the pallet 1, which are inter-leg ribs 33 that connect the inner parts 45 of adjacent support legs 4, is 1.5 times or more the thickness t21 of the non-inter-leg ribs 34 of the ribs 3 excluding the inter-leg ribs 33.

[0065] According to the second embodiment, the weight of the pallet 1 can be reduced by keeping the thickness t21 of the non-inter-leg rib 34 small, and the strength and rigidity of the pallet 1 can be ensured by making the thickness t11 of the inter-leg rib 333 1.5 times or more than the thickness t21.

[0066] A third embodiment can be realized by combining it with the second embodiment. In the third embodiment, the pallet 1 comprises, as support legs 4, four corner support legs 41 projecting downward at the four corners of the deck 2, four intermediate support legs 42 projecting downward at the midpoint of each side of the deck 2, and one central support leg 43 projecting downward at the center of the deck 2. A fork insertion opening 10 is formed below the deck 2, between the corner support legs 41 and the intermediate support legs 42. A rectangular interleg rib 333 is provided, with its vertices being the inner part 45 of one corner support leg 41, the inner parts 45 of the two intermediate support legs 42 adjacent to one corner support leg 41, and the inner part 45 of the central support leg 43.

[0067] According to the third embodiment, the strength and rigidity of the pallet 1 are improved.

[0068] A fourth embodiment can be realized by combining it with the second embodiment. In the fourth embodiment, the width t12 of the flange portion 334 formed on the upper edge of the inter-leg rib 33 is at least twice the width t22 of the flange portion 343 formed on the upper edge of the non-inter-leg rib 34.

[0069] According to the fourth embodiment, it becomes easier to improve the strength and rigidity of the pallet 1. [Explanation of Symbols]

[0070] 1 Palette 10 Fork insertion slots 2. Deck Section 20 recesses 3 Ribs 33 Interlegged ribs 333 Interlegged ribs 34 Non-legged ribs 4. Support Legs 40 Cylindrical member 400 center 41 Corner support leg 42 Intermediate support legs 43 Central support leg 44 Outer part 440 Normal vector 45 Inner part 450 Normal vector t11 thickness t12 width t21 Thickness t22 width θ1 angle θ2 angle

Claims

1. The deck section is formed in a rectangular shape in plan view, A pallet comprising a plurality of support legs that protrude downward at at least four corners of the deck section, The deck section has recesses in a plan view corresponding to each of the support legs, into which the support legs can be inserted from above. The support leg portion is composed of a cylindrical member having the recess inside and opening upward, In each of the aforementioned support legs, in a plan view, the side of the outer edge of the deck portion adjacent to the support leg is considered the outside, with the center of the support leg as the reference point, and the opposite side is considered the inside. The outer portion of each of the aforementioned support legs is inclined so that it moves inward as it goes downward. The inner portion of each of the aforementioned support legs, which is located on the inside, is inclined so that it moves outward as it goes downward. The angle that the normal vector of the outer portion makes with respect to the upper surface of the deck portion is at least twice the angle that the normal vector of the inner portion makes with respect to the upper surface of the deck portion. palette.

2. Each of the aforementioned support legs, in a plan view, has a curved outer casing, and the curvature of the curve on the inner part is formed to be the greatest. The deck portion has a grid-like arrangement of ribs in plan view, and the thickness in plan view of the inter-leg ribs that extend in the direction of the long side of the pallet, which connect the inner parts of adjacent support legs, is 1.5 times or more the thickness of the non-inter-leg ribs excluding the inter-leg ribs. The pallet according to claim 1.

3. As the aforementioned support leg portion, The deck section has four corner support legs that protrude downward at each of its four corners, Four intermediate support legs protrude downward from the middle of each side of the deck section, The deck section comprises a single central support leg that protrudes downward from the center of the deck section, A fork insertion opening is formed below the deck portion and between the corner support leg and the intermediate support leg. A rectangular interleg rib is provided, with its vertices connecting the inner portion of one of the corner support legs, the inner portions of two intermediate support legs adjacent to the one corner support leg, and the inner portion of the central support leg. The pallet according to claim 2.

4. The width of the flange portion formed on the upper edge of the inter-leg rib is at least twice the width of the flange portion formed on the upper edge of the non-inter-leg rib. The pallet according to claim 2.

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