JP6007452B2 - Pallet and prefabricated container - Google Patents

Description

  The present invention relates to a pallet used for transporting a transported object, and more particularly to a pallet capable of nesting. Furthermore, it is related with the assembly-type container using this pallet.

  2. Description of the Related Art Conventionally, a disassembleable assembling container that is used for transporting and storing products such as products and materials is known. For example, there is a type in which a transport object is placed on a transport pallet, a sleeve surrounding the transport object is placed on the pallet, and a cap (lid) is placed on the sleeve and closed. Such a container is unloaded with a forklift or the like, and is loaded and transported on a truck or a container ship.

  Thus, when handling a container with a forklift or the like, it is convenient to lift the container by inserting a fork (claw) of the forklift into the lower part of the container. For this purpose, a plurality of legs are provided on the bottom side of the pallet of the container so as to be partially raised, and a space in which the forklift pawl can be inserted (hereinafter also referred to as “fork clearance”) is secured. Has been done. A forklift usually has two parallel claws to stably lift and transport the container during handling. For this reason, the arrangement of the legs of the container is determined so that a space for inserting the two claws is created. For example, if a leg part is comprised by three parallel protrusions, since a nail | claw will enter between the protrusions, cargo handling can be performed from two front and back directions (so-called two-way insertion). In addition, when the legs are made in an island shape and the legs are arranged in a lattice shape, the legs can be lifted not only from the front-rear direction but also from the left-right direction (so-called four-way insertion). Four-way insertion is convenient for unloading in small places.

  A pallet used for such an assembly-type container may be stacked with only pallets and stored before and after use, or only pallets may be transported to a necessary loading place. For this reason, a nesting structure (nestable structure) is adopted that accommodates the concave and convex portions (particularly the leg portions) of the upper and lower pallets so that the bulk is reduced when only the pallets are stacked in multiple stages (Patent Literature). 1, 2, 3). Such a pallet is convenient because it saves occupied space during storage, transportation, and collection.

  On the other hand, as in the case of pallet nesting, assembly-type containers may be stacked in multiple stages in a state in which transported goods are stored in order to save occupied space during actual transport of goods or warehouse storage (so-called pallet nesting). Stacking). When stacked, the lower container receives the load of the upper container, but in the case of a prefabricated container, as described above, the sleeve that encloses the load is placed on the pallet, and the cap ( In many cases, the load from the upper container is transmitted in the order of the cap, sleeve, and pallet, and then transmitted from the pallet leg to the floor or further to the lower container. The Therefore, when stacking in this way, each member constituting the container is required to have high rigidity, but there are restrictions on the material that can be selected for the member and the thickness of each member. In addition, since there is a request for nesting as described above, the structure needs to be devised.

  As an example of such a structure, there is a pallet that can insert a forklift claw, can perform nesting, and can stand a sleeve on a deck for the purpose of improving its durability. Yes (Patent Document 2). In order to reduce the bending moment that acts on the mounting part in the deck corner part as the groove structure part is provided up to the deck corner part in order to support the sleeve also in the deck corner part, the supporting leg part (leg part) is the deck. The bulge is formed to the position directly below the mounting portion toward the outer peripheral side.

However, even in this case, generation of moment load has not been prevented when containers are stacked.
For this reason, the inventors have said that "the nesting of the pallet can be efficiently performed", "four-way insertion is possible (a space for the forklift claw to enter from the front, rear, left and right is secured on the pallet bottom)", "use this pallet The pallets and containers having the "high loading efficiency of the containers that existed" and the "legs that do not generate unnecessary moment load when the containers are stacked" were intensively studied.
According to the studies by the inventors, when stacking an assembly-type container using a pallet capable of nesting, the structure of the pallet in consideration of the load transmitted from the upper container leg to the lower container cap and sleeve. It was recognized that design was a problem.

(Contrast between vertical load and loading efficiency)
In order not to generate unnecessary moment load when stacked, it is desirable to receive the load linearly in the vertical direction between the members. In the case of an assembly-type container, a structure in which the legs of the upper container are placed directly on the upright sleeve of the lower container is good.
However, a pallet that assumes nesting generally adopts a shape in which the legs are tapered toward the bottom surface to enable nesting. Therefore, the position of the bottom surface of the legs is the center of the container. It will depend on the side. When the assembly type containers using such pallets are stacked, considering the loading efficiency of the container, if the sleeve is erected in the immediate vicinity of the outer peripheral edge of the pallet, the leg portion of the upper container is directly above the sleeve of the lower container. Is difficult to put.

In other words, in a pallet that considers nesting, when the sleeve is moved toward the center of the container so that the load can be linearly received in the vertical direction according to the position of the bottom surface of the tapered leg, the load is linear. However, as the sleeve is moved to the center, the mountable area of the mounting surface decreases, and the container loading efficiency decreases (see FIG. 11 described later).
On the other hand, if the sleeve is made to stand upright as close as possible to the outer peripheral edge of the pallet as much as possible without lowering the loading efficiency, the bottom surface of the leg portion that is tapered for nesting enters the inside of the sleeve. In this case, the weight of the upper container can be supported by applying the load of the leg of the upper pallet to the cap covered with the sleeve (Patent Document 3).
However, in this case, since the load cannot be received linearly in the vertical direction, unnecessary shearing force, tension, and moment load are generated in the lower cap and sleeve.

Using FIG. 12, a moment load is applied to the cap C1 ′ in a nestable pallet (in which there are nine island-like legs) with four inserts in which the sleeve is erected as close to the outer peripheral edge of the pallet as possible. Will be explained.
FIG. 12 is a schematic cross-sectional view of a main part when stacking containers A1 ′ and A2 ′ using conventional pallets P1 ′ (not shown) and P2 ′. FIG. 12A shows a case where there is no occurrence of bending of the member. As shown in the figure, the sleeves S1 'and S2' are set as close as possible to the outer peripheral edges of the pallets P1 'and P2', and the legs 14 '(24') of the pallets P1 'and P2' are also removed as much as possible. The position is close to the periphery. In order to enable nesting, the leg 14 ′ (24 ′) is tapered toward the leg bottom 14c ′ (24c ′) at an angle θ ′. For this reason, the bottom surface 14c ′ (24c ′) of the leg portion 14 ′ (24 ′) is positioned on the inner side of the sleeves S1 ′ and S2 ′ and cannot be placed directly above the sleeve S1 ′. Then, the load of the upper container A2 ′ is received by the cap C1 ′ of the lower container A1 ′ via the bottom surface 14c ′ (24c ′) of the leg portion. In the cap C1 ′ in such a state, a shearing force and a tension act, and a bending moment is generated with the upper end of the lower sleeve S1 ′ as a fulcrum. Therefore, the rigidity of the cap C1 ′ that can withstand this is required, and durability is a problem.

FIG. 12B shows the case where the cap C1 ′ has insufficient rigidity and the member is bent. As shown in the figure, the cap C1 ′ is bent and sinks into the lower container A1 ′. In addition, a shearing force is applied to the lower sleeve S1 ′ and a bending moment is generated in the outer direction of the container A1 ′ with the lower end of the sleeve S1 ′ as a fulcrum, so that the sleeve S1 ′ is bent outward. Yes. When the load is larger, the sleeve S1 ′ and the cap C1 ′ may be damaged, the lower container A1 ′ may be broken, and the upper container A2 ′ may fall into the lower container A1 ′.
The effect of such moment load increases as the number of steps increases. In the case of three-tiered stacks, the lowermost container receives the load of two containers placed on it, and it is necessary to withstand twice the load in the case of two-tiered stacks.

JP 2003-170942 A JP 2013-14358 A JP 2010-6377 A

  The present invention has been made in view of such a conventional situation, and its purpose is good nesting efficiency, easy handling with a forklift, good container loading efficiency when assembled as a container, and stacked as a container. It is to provide a pallet that can increase the durability of the container at the time. Another object of the present invention is to provide a container that uses such a pallet and has high loading efficiency and high durability during stacking.

  In order to achieve the above object, the present invention provides a pallet for transportation that can be used for assembling containers, and a plurality of legs that support the placement section on which the article is placed and the placement section. The mounting portion is rectangular and plate-shaped, and the mounting portion includes a guide groove for supporting the sleeve when assembled as a container along the outer peripheral edge of the upper surface. The leg portions are arranged at least along the periphery of the placement portion, and each leg portion includes a wall surface and a bottom surface connected to the wall surface, and protrudes to a lower surface side of the placement portion. A wall which does not constitute a pallet outer wall among the wall surfaces, and is formed with an opening on the upper surface side of the mounting portion to accommodate a leg portion corresponding to the nesting. Makes a constant overlap angle θ with the bottom surface. The wall surface forming the outer wall of the pallet is formed to extend vertically from the bottom surface along the outer peripheral edge of the pallet to a height lower than that of the mounting portion. At least one of the legs has a wall surface constituting the pallet outer wall, and the thickness of the mounting portion is configured to be smaller than the height of the wall surface constituting the pallet outer wall.

Here, the “superposition angle” refers to an angle θ at which the bottom surface of the leg and the wall surface intersect (see FIG. 5 and the like).
Further, “the thickness T of the mounting portion” refers to the distance between the upper surface (mounting surface) of the mounting portion and the lowermost portion of the mounting portion, and does not include the legs (see FIG. 5 and the like). “Pallet outer wall” refers to the outer surface of the side surface of the pallet. Unless otherwise specified, the upper surface (mounting surface) side of the pallet is described as the upper side, and the lower surface side of the pallet is described as the lower side (the same applies hereinafter).

  Because of this structure, when nesting is carried out with the pallets stacked one above the other, the legs and the receiving recesses are both front and back, so they are the same shape and constricted at the same angle θ. The legs are accommodated in the accommodating recesses so that they overlap. The increase in height per pallet when nesting (hereinafter sometimes referred to as “nesting height”) is at least the thickness T of the pallet mounting portion (that is, the upper surface of the mounting portion and the above-described mounting height). The distance T) of the place which becomes the lowest end of the mounting surface of a part is needed. On the other hand, since the wall surface constituting the outer wall of the pallet extends vertically from the bottom surface of the leg portion to the height H, the upper and lower pallets interfere at this height H. Therefore, if the height H is larger than the required height T, nesting can be performed without interference. In this case, if palette θ is determined so as to satisfy such a relationship, efficient pallet nesting can be performed.

  It is preferable that one of the leg portions is provided so as to be arranged at the center of the placement portion, and the respective leg portions are arranged so as to be arranged in a lattice shape as a whole.

  Here, the “center of the placement portion” refers to the intersection of diagonal lines drawn from the four corners of the rectangular and plate-like pallet and the vicinity thereof.

Since it is configured in this way, there are two spaces (hereinafter referred to as “forklift clarilance”) between the legs arranged in a lattice pattern on the bottom surface of the pallet and viewed from each side of the pallet. .) Is formed, and this space penetrates the lower surface of the pallet in the horizontal direction (a surface parallel to the pallet mounting surface), so the forklift fork is inserted into this space, and there is a pallet (conveyed material loaded on the pallet). In this case, it is possible to lift the pallet including the transported goods, and it is possible to easily handle the pallet using a forklift.
Since the legs are arranged in a grid, the pallet can be lifted by a forklift from four directions in total, not only in the front and rear two directions but also in the left and right directions (so-called four can be inserted). Therefore, even when the space for loading is severely limited, it is possible to efficiently handle the pallet and the container using the pallet.

  Moreover, it is preferable that the said pallet is square shape.

  Since it is configured in this way, the pallet has a square shape, so when the pallets are stacked vertically and nested, the legs are point-symmetric with respect to the center of the pallet in both the front-rear direction and the left-right direction. Therefore, they can be stacked not only in the front-rear direction but also in the left-right direction regardless of the direction, and the nesting height can be made the same.

  Further, the leg portion has a protruding portion formed so as to protrude upward in the receiving concave portion and an accommodating concave rib for reinforcing the protruding portion, It is formed to extend vertically upward from the bottom surface, the height of the upper end thereof is the same as the height H of the wall surface constituting the pallet outer wall, and the projecting portion is the top surface of the mounting portion from the bottom surface It is preferable that a wall surface extending while constricting to the same height as the above-mentioned overlapping angle θ and a top surface of the wall surface connected to these walls include a lid surface constituting the top surface of the mounting portion.

Since it is configured in this way, the upper surface of the lid surface of the projecting portion becomes the same height as the upper surface of the mounting portion to constitute the mounting surface, and the bottom surface of the conveyed item and the upper surface of the mounting portion are Since the contact area increases, the conveyed product can be more stably placed on the pallet.
Further, when nesting is performed with the pallets stacked vertically, not only the upper pallet leg is housed in the lower pallet housing recess, but also the lower pallet leg protrusion at the same nesting height H. The portion can be accommodated in the leg recess of the upper pallet.
In addition, since the upper end of the housing recess rib of the lower pallet contacts the bottom surface of the leg portion of the upper pallet, when nesting, not only the wall surface constituting the pallet outer wall but also the housing recess rib Since the contact area can be increased and the load generated by the weight of the upper pallet can be received in a distributed manner, it is possible to prevent the pallet from receiving a single load that causes torsion or deflection.

  Further, the projecting portion forms a leg recess having an opening on the lower surface side of the mounting portion in the inside thereof, and has a leg recess rib for reinforcement in the leg recess, It is preferable that the length from the protruding portion placement surface to the lowest end of the leg concave rib is the same as the height H of the wall surface constituting the pallet outer wall.

Because of this structure, when nesting is performed, not only the upper pallet leg is housed in the housing recess of the lower pallet but also the lower pallet with the same nesting height H. The leg protrusion can be accommodated in the leg recess of the upper pallet.
In addition, since the projecting portion mounting surface of the lower pallet and the lowermost end of the leg concave rib of the upper pallet are in contact, not only the receiving concave rib but also the leg concave rib, particularly multistage nesting is performed. In this case, the load caused by the weight of the upper pallet can be further increased because the contact area between the upper pallet and the lower pallet can be further increased. It is possible to prevent a single load that causes bending or bending.

  The guide groove includes an outer wall portion constituting the pallet outer wall, an inner wall portion facing the outer wall portion and connected to the upper surface of the mounting portion, and a groove bottom portion connecting the outer wall portion and the inner wall portion. The height WH from the mounting surface at the top end of the outer wall portion is obtained by subtracting the height H of the wall surface constituting the pallet outer wall from the thickness T of the mounting portion. It is desirable that the opening is widened with an inclined surface at a connection portion between the inner wall portion and the upper surface of the mounting portion, which is smaller than a value (nesting clearance NC = HT).

Since it is constituted in this way, the sleeve provided upright in the guide groove of this pallet can be stably supported.
Further, when a sleeve having a shape along the outer peripheral edge of the mounting portion is erected, the lower end of the sleeve can be lowered to the bottom surface portion in the leg portion, so that the sleeve is supported more stably in the leg portion. be able to.
In addition, since the value is smaller than the value obtained by subtracting the thickness T of the mounting portion from the height H of the wall surface constituting the outer wall of the pallet (nesting clearance NC) (WH <(HT) = NC), nesting is performed. The upper end of the outer wall portion is higher than the placement surface and is within the range of the nesting clearance NC, so that nesting is not hindered. Furthermore, because the location where the inner wall and the mounting surface are connected is an inclined surface, the opening of the guide groove is widened, and it becomes easier to insert the sleeve into the guide groove to assemble the container, Assembling workability is improved.

  Further, the height of the upper end of the central portion of the outer wall portion is lower than the position of the connecting portion between the inner wall portion and the inclined surface, and the height of the lower end of the outer wall portion is higher than the lowest end of the mounting portion. The portion has a rib for reinforcement on the lower surface side thereof, and the rib connected to the outer wall portion of the rib has an inclination upward to connect to a lower end of the outer wall portion, and the inner wall portion It is preferable that the fork insertion port is widened with an inclined surface at a connection portion between the mounting portion and the upper surface of the mounting portion.

Because of this configuration, when the pallets are stacked one above the other and nested, the lowermost end of the upper pallet mounting portion and the upper surface (mounting surface) of the lower pallet mounting portion A gap (fork insertion port) having a size HT (nesting clearance NC) is formed between the two. By inserting the tip of the forklift pawl into this gap, the nested pallet can be placed on the pawl of an arbitrary number of forklifts, and the operability of handling the nested pallet is improved.
In addition, the rib connected to the outer wall portion has an inclination, and the connecting portion between the inner wall portion and the upper surface of the mounting portion has an inclined surface, so that the nesting pallet fork insertion port is further expanded. Yes. For this reason, it becomes easy to insert the front-end | tip of a forklift, and the workability | operativity of the handling of the nesting pallet further improves.

  Further, at least the side leg portion and the corner leg portion of the leg portion include a guide piece receiving portion that accommodates the guide piece corresponding to the guide piece and nesting, and the guide piece is provided in the accommodation recess. A trapezoidal convex piece constricted at the overlapping angle θ from the bottom surface to the same height as the top surface of the mounting portion on the wall surface that does not constitute the outer wall of the pallet, and the guide piece receiving portion includes the guide piece and It is preferable that it is a concave part provided in the front and back relation in the wall surface which does not comprise the said pallet outer wall.

  With this structure, when the pallet is nested and the upper pallet leg is received in the lower pallet receiving recess, the lower pallet guide is received by the upper pallet guide piece receiver. Since the pieces are guided, the pallet can be smoothly nested and workability is improved. In addition, it is possible to reduce horizontal play when nesting is performed.

In order to achieve the above object, the present invention
A pallet having a lower end supported by the pallet to constitute a side wall of the container; and a cap that closes an upper surface opening of the sleeve; and the lower end of the pallet has a lower end. It is an assembly-type container extended so that it may contact | abut to each bottom face in a leg accommodating part, and the groove bottom part of the said guide groove.

  Since it is configured in this way, the sleeves of the upper and lower containers are linearly lined up and down via the cap and the bottom surface of the leg portion. Since they are stacked, it is possible to prevent unnecessary shearing forces and moments from occurring in any of the cap, sleeve, and leg members.

  As described above, the present invention has good nesting efficiency, is easy to handle with a forklift, has good container loading efficiency when assembled as a container, and increases the durability of the container when stacked as a container. Can provide a pallet that can. In addition, a container using such a pallet with high loading efficiency and high durability during stacking can be provided.

Embodiments of a pallet and a container according to the present invention will be described below with reference to the drawings. Unless otherwise specified, the upper surface (mounting surface) side of the pallet is described as the upper side, and the lower surface side of the pallet is described as the lower side.
1 to 5 show a pallet P that is an example of an embodiment of the present invention.
FIG. 1 is a perspective view obliquely from above showing an example of an embodiment of a pallet according to the present invention. 2 is a perspective view from below, FIG. 3 is a front view, and FIG. 4 is a rear view. 5 is an end view of the central section VV of FIG.

As shown in FIGS. 1-4, the pallet P of this embodiment is a pallet for conveyance which has a leg part which protruded in the rectangular plate shape, and nesting is possible as mentioned later. The pallet P is placed at the center of the pallet P and the placement unit 1 on which the transported object (not shown) is placed, the legs 14 and 24 that are arranged along the periphery of the placement unit 1 and support the placement unit 1. The leg part 4 which is arrange | positioned and supports the mounting part 1 is provided.
The pallet P has a substantially square shape when viewed from above the placement surface 1a, and is integrally formed by injection molding of polypropylene resin. The shape may not necessarily be square, but may be rectangular, but when pallets P are stacked (nested), if they are square, they can be stacked without considering the orientation of the pallet, which is convenient when handling pallets. . In addition to polypropylene resin, polyolefin resin such as polyethylene resin can be preferably used.

(Placement part, placement surface)
The placement unit 1 forms a placement surface 1a on which an object is placed on the upper surface 1a. The upper surface 1a of the mounting portion 1 is discontinuous because the concave portions 4d, 14d, and 24d are formed at the portions where the leg portions 4, 14, and 24 are formed, but is basically formed at the same height (level). Has been.

(Guide groove)
The mounting portion 1 has a guide groove 7 along the outer peripheral edge of the upper surface thereof. As will be described later, when the pallet P is used as a member of the assembly-type container A, the sleeve S is erected on the pallet P so as to surround the transported object, but the lower end of the sleeve S is inserted into the guide groove 7. The installation position of the sleeve S on the pallet P is determined.

(Under the mounting part)
As shown in FIGS. 2 and 4, leg portions 4, 14, and 24 protrude from the lower surface 1 b of the placement portion 1, and other portions are appropriately set to increase the rigidity of the placement portion 1. Ribs 1c are formed so as to extend from the placement portion lower surface 1b in parallel with the two sides of the rectangular placement portion 1 at intervals of. Since the ribs 1c intersect with each other at an angle of 90 ° and are connected to each other because they are formed parallel to the two sides in the vertical and horizontal directions, the rigidity of the mounting portion 1 is enhanced.
The height of the rib 1c is limited so as not to exceed a predetermined nesting height H because the thickness T of the mounting portion is determined as will be described later.
Further, the rib 1c is gradually inclined upward in the vicinity of the periphery of the mounting portion lower surface 1b between the side leg portion 14 and the corner leg portion 24 (in the vicinity of the forklift insertion port 6a into which the forklift claw enters). The guide structure is formed so that the tip of the claw of the forklift can be easily inserted (described later).

(Leg, Central leg, Side leg, Corner leg)
The leg portions 4, 14, and 24 include a central leg portion 4, a side leg portion 14, and a corner leg portion 24 that are partially different in shape, and all of the leg portions are formed on the leg bottom surface 4c, 14c, 24c and the leg bottom surface. The point which has the four wall surfaces 4a, 14a, 14b, 24a, 24b to connect is common.
The central leg portion 4 is disposed at the center of the pallet P, and the four wall surfaces 4a are formed to extend from the placement portion 1 to the lower surface side thereof, and thereby, a quadrangular pyramid that extends to the lower surface side of the placement portion 1. A projecting portion having a base shape is formed, and an accommodation recess 4d that opens on the upper surface side of the mounting portion 1 is formed in a relationship between the front and back surfaces. Since any wall surface constituting the central leg 4 is not a part of the outer wall on the side surface of the pallet, it is hereinafter referred to as “wall surface not constituting the pallet outer wall”. All wall surfaces form a certain angle θ so as to narrow toward the bottom surface.

  The side leg portion 14 is disposed at the center of each side of the periphery of the placement portion 1, and three of the four wall surfaces are formed to extend from the placement portion 1 to the lower surface side thereof and are formed on the bottom surface 14 c. As in the case of the central leg portion 4, these wall surfaces 14 a are “wall surfaces not constituting the pallet outer wall”. These wall surfaces form a certain angle θ so as to narrow toward the bottom surface. On the other hand, the remaining one wall surface 14b extends perpendicularly from the bottom surface 14c to the placement unit upper surface side to a certain height H, and is provided so as to constitute a pallet outer wall (hereinafter, these wall surfaces 14b are referred to as “ This is referred to as a wall surface 14b constituting the outer wall of the pallet).

  The corner legs 24 are arranged at the respective corners on the periphery of the mounting portion 1, and two of the four wall surfaces are adjacent to each other and connected to the bottom surface 24 c and the bottom surface, and the bottom surface side from the mounting portion 1. And is connected to the bottom surface 24c. None of the wall surfaces 24a is a part of the outer wall on the side surface of the pallet, and will be referred to as “a wall surface that does not constitute the pallet outer wall”. These wall surfaces 24a form a certain angle θ so as to narrow toward the bottom surface 24c. On the other hand, the other two wall surfaces 24b are adjacent to each other, and are provided so as to constitute a pallet outer wall extending vertically from the bottom surface 24c to the mounting portion upper surface side to a certain height H (hereinafter referred to as these). The wall surface 24b is referred to as “wall surface 24b constituting the outer wall of the pallet”).

(Legs, number / arrangement)
In the present embodiment, nine leg portions 4, 14, and 24 are provided. Four corner leg portions 24 are provided at each of the four corners of the placement portion 1, and four side leg portions 14 are provided at the center portions of the four sides of the placement portion 1. One 4 is provided at the center of the mounting portion 1.
Since each leg part 4,14,24 of this embodiment protrudes from the pallet lower surface in convex shape or island shape, and these are arrange | positioned at the grid | lattice form, between these leg parts 4,14,24 is carried out. A space (hereinafter, also referred to as “fork clearance”) 6 through which the fork (claw) of the forklift can penetrate can be formed. In particular, in this embodiment, since nine legs are arranged in a lattice shape, not only can the nails be inserted from the front and rear direction into the so-called two-insert pallet, but also the front and rear of the so-called four-insert pallet. The nail can be inserted from both the left and right directions.

In the present embodiment, since the pallet P has a square shape, the leg portions 4, 14, and 24 are arranged in a lattice shape so as to be symmetrical with respect to the center of the pallet P as a whole. For this reason, when nesting the pallets P, they can be stacked without considering the direction of the pallets.
In the present embodiment, a total of nine legs 4, 14, and 24 are provided, but it is sufficient to support the pallet if at least the corner legs 24 are at the four corners. When there is the center leg 4 and the side leg 14, since the load is distributed to each leg when nesting, the pallet itself is also reduced in deflection, and the load transmitted to the floor or the like through each leg. Is also preferable because it is dispersed.

(Leg, nestable structure)
In the present embodiment, the leg portions 4, 14, and 24 form accommodation recesses 4d, 14d, and 24d that open on the upper surface side of the mounting portion 1 that are in a front-back relationship with the mounting surface 1a. The housing recesses 4d, 14d, and 24d can accommodate the legs of other stacked pallets and constitute a nesting structure (a nestable structure) that is less bulky than when the pallets are simply stacked. Yes.
When nesting is possible, it is convenient for stacking and storing only the pallets P before and after the use of the pallets P, or for transporting only the pallets P to a necessary loading place. This nestable structure is likened to a stack of many paper cups of the same size. The pallet P having such a structure can save space occupied by the pallet P when storing, transporting, and collecting the pallet P.

(Walls that do not constitute the outer wall of the pallet and those that constitute the wall)
In order to realize such a nestable structure, in this embodiment, the wall surfaces 4a, 14a, and 24a that do not constitute the outer wall of the pallet are overlapped upward from the bottom surface of the legs. The wall surface 14b, 24b constituting the outer wall of the pallet among the wall surfaces of the leg portions 4, 14, 24 is formed at the same height from the bottom surface 14c, 24 of the leg portion. It is formed perpendicularly to the bottom surface 14c, 24c of the leg part to a length H. Hereinafter, this point will be described in detail with reference to FIGS.

  FIG. 5 is an end view of the central section VV of the pallet P shown in FIG. 3, and FIG. 6 is a diagram for explaining a state when nesting is performed, and the pallets P1 and P2 in which two pallets are stacked are shown. It is an end view in the same cross section. FIG. 7 is an enlarged view of the main part of FIG. 6, showing the side leg part 14 mainly disposed at the peripheral part of the pallet, and also showing the corner leg part 24. FIG. 8 is an enlarged view of the main part of FIG. 6 and shows the central leg 4 disposed mainly in the center of the pallet.

(Center leg)
As shown in FIGS. 1-5, the center leg part 4 has the four wall surfaces 4a extended from the mounting part 1 to the lower surface side, and the bottom face 4c connected to these. The four wall surfaces 4a are wall surfaces 4a that do not constitute the outer pallet wall. The “outer wall of the pallet” here refers to a side surface portion of the pallet P when the mounting surface 1a of the pallet P is the front surface, wall surfaces 14b and 24b constituting the pallet outer wall, an outer wall portion 7a of the guide groove 7, and the like. (Hereinafter, the same, see FIG. 1, FIG. 2, FIG. 5, etc.).

As shown in FIG. 8, the wall surface 4a that does not constitute the outer wall of the pallet extends from the bottom surface 4c of the central leg 4 upward to the placement unit upper surface 1a with a constant plate thickness t so as to spread with an overlapping angle θ. Is formed. The central leg portion 4 includes the four wall surfaces 4a and the bottom surface 4c connected thereto, and constitutes a leg portion 4 that forms a quadrangular frustum and projects to the lower surface side of the pallet P (FIGS. 1 and 2). Etc.)
On the other hand, on the upper surface side of the pallet P, as a result of forming the leg portion 4 projecting to the lower surface side, an accommodation recess 4d is formed which opens to the upper surface side of the mounting portion 1 with the inside of this square pyramid as a recess. The

  Since the wall surface 4a formed in this way has a shape that opens upward at the same angle θ from the bottom surface 4c to the outside and the inside of the wall surface 4a, as shown in FIG. When P2 is superposed, the leg portion 4 of the upper pallet P2 can be superposed to a certain depth in the same manner as when the paper cup is superposed on the receiving recess 4d of the lower pallet P1. For this reason, if the angle θ is changed, the height (nesting height H) that increases when the pallets are overlapped can be changed. Therefore, by selecting the angle θ, efficient overlapping can be performed at the required depth. (Nesting) can be done. This angle θ is determined in consideration of the plate thickness t, the height required for the fork insertion space (fork clearance) 6, the nesting height H, and the like.

(Side leg)
As shown in FIGS. 1-5, the side leg part 14 arrange | positioned along the pallet periphery which is the edge | side of the pallet P is the wall surface 14a which does not comprise the three pallet outer walls extended from the mounting part 1 to the lower surface side. The wall surface 14b which comprises one pallet outer wall, and the bottom face 14c connected to these wall surfaces 14a and 14b are provided.

As shown in FIG. 7, the wall surface 14b constituting the outer wall of the pallet is formed perpendicular to the bottom surface 14c of the leg portion from the bottom surface 14c to a certain height H, and protrudes to the lower surface side along the periphery of the pallet P. The leg part 14 is configured.
On the other hand, the upper surface side of the pallet P, on the contrary, can be formed integrally with the front and back sides of the square frustum as a concave portion, so that the upper surface of the mounting portion 1 is formed as a result of forming the leg portions 14 projecting to the lower surface side. An accommodation recess 14d that opens to the side is formed.

Since the three wall surfaces 14a other than the wall surface 14b constituting the pallet outer wall of the leg portion 14 formed in this way are opened upward at the same angle θ, they can be overlapped similarly to the central leg portion 4. However, since the wall surface 14b that constitutes the outer wall of the pallet is perpendicular to the bottom surface 14c, interference occurs between the upper and lower pallets at the height H, and no further overlapping is possible. Originally, when nesting is performed, at least the thickness T of the pallet placing portion 1 is required. Therefore, in order to set the optimum nesting height H, the nesting height H needs to be larger than the thickness T. is there.
In this case, the wall surface 14b constituting the pallet outer wall has a thickness T of the mounting portion 1, that is, a distance T between the upper surface 1a of the mounting portion 1 and the lowermost end portion 1e of the rib 1c provided on the lower surface of the mounting portion 1. Is smaller than the height H from the bottom surface 14c of the leg portion of the wall surface 14b constituting the outer wall of the pallet, that is,
HT> 0 (Formula 1)
It is good to do. In this way, it is possible to ensure the same overlapping depth (nesting height H) as the central leg 4 in the side leg 14. The value of HT is sometimes referred to as “nesting clearance NC” in the present specification in the sense of the interval between the upper and lower pallets when nesting is performed.

(Corner leg)
As shown in FIG. 1 to FIG. 5, the corner legs 24 arranged along the pallet periphery that is the corner (corner) of the pallet P are two adjacent pallets that extend from the placement unit 1 to the lower surface side thereof. It has a wall surface 24a that does not constitute the outer wall, two adjacent wall surfaces 24b that constitute the outer wall of the pallet, and a bottom surface 24c that is connected to these wall surfaces 24a and 24b.

As shown in FIG. 7, the wall surface 24b constituting the outer wall of the pallet is formed perpendicularly to the bottom surface 24c of the leg portion from the bottom surface 24c of the leg portion to a certain height H in the same manner as the side leg portion 14 described above. The leg part 24 which protrudes in the lower surface side is comprised by the corner part of the pallet P. As shown in FIG.
On the other hand, the upper surface side of the pallet P, on the other hand, can be formed integrally with the front and back surfaces of the rectangular frustum as a recess, so that the legs projecting to the lower surface side, like the central leg portion 4 and the side leg portion 14. As a result of forming the portion 24, an accommodation recess 24d that opens to the upper surface side of the placement portion 1 is formed.

  Since the two wall surfaces 24a other than the wall surface 24b constituting the pallet outer wall of the leg portion 24 formed in this way are opened upward at the same angle θ, they can be overlapped similarly to the central leg portion 4. However, since the other two wall surfaces 24b constituting the outer wall of the pallet are perpendicular to the bottom surface 24c, the upper and lower pallets interfere with each other at the height H as in the case of the side legs 14, and further overlap is performed. Can not do it. Since this situation is the same as that of the side leg portion 14, the wall surface 24b constituting the outer wall of the pallet is formed on the upper surface of the mounting portion 1 so that the overlapping can be performed up to a necessary overlapping depth (nesting height H). (Equation 1) so that the distance T between the bottom end 1e of the rib 1c provided on the lower surface of the mounting portion 1 is smaller than the height H from the bottom surface 24c of the leg portion of the wall surface 24b constituting the outer wall of the pallet. What is necessary is just to make it become the same relationship. In this way, the same overlapping depth (nesting height H) as that of the side legs 14 can be secured also in the corner legs 24.

In this way, the nesting height H is optimized as shown in FIG. 6 by determining the overlapping angle θ of the legs 4, 14, and 24 at the center, sides, and corners of the pallet to be the same. Can be nested efficiently.
In the case of this embodiment, the size of the pallet is 1130 × 1130 mm, the height h of the pallet is 135 mm, θ = 96.3 °, and the height that increases when one sheet is nested (nesting height H) is 50 mm. We were able to.

  FIG. 9 shows a state in which the pallet P of the present embodiment is stacked over 20 stages from the pallet P1 to the pallet P20. Since the height h of the pallet is 135 mm and the nesting height is 50 mm, if nesting is not possible, the height is 135 mm × 20 steps = 2700 mm. However, since the nesting is possible, 135 mm + 50 mm × 19 steps = It became 1085 mm, and the bulk could be reduced to 40% (1085/2700 = 0.40). The fork insertion space 6 is 88 mm, and the fork insertion space 6a is 6 mm.

(Protrusions & leg recess ribs)
As shown in FIGS. 1 to 4, an overlapping angle is formed in the housing recesses 4 d, 14 d, and 24 d from the bottom surface of the housing recesses 4 d, 14 d, and 24 d to the same height as the top surface of the mounting portion 1 (mounting surface 1 a). Protruding portions 5 that protrude while being constricted by θ are provided. The protruding portion 5 increases the rigidity of the leg portions 4, 14, and 24, and compensates for the substantial area of the mounting surface 1 a that is reduced by the housing recesses 4 d, 14 d, and 24 d.
The protruding portion 5 is composed of a wall surface 5a extending upward from the leg bottom surfaces 4c, 14c, 24c and a lid surface 5b connected thereto, and a leg recess 5d that opens on the lower surface side of the mounting portion 1 is formed therein. Form. A leg recess rib 5e is provided in the leg recess 5d. The leg concave rib 5e is formed to extend integrally and vertically from the protruding portion lid surface 5b toward the pallet lower surface, and is connected to the protruding portion wall surface 5a. The height of the leg recess rib 5e is the same as the nesting height H described above when the length from the protrusion mounting surface 5c to the lowermost end 5f of the leg recess rib 5e is reduced. The projecting portion mounting surface 5c of the side pallet and the lowermost end 5f of the leg concave rib 5e of the upper pallet come into contact with each other (FIGS. 5 and 7).
For this reason, when nesting is performed, not only the upper and lower ends of the wall surfaces 14b and 24b constituting the outer walls of the upper and lower pallets come into contact with each other at the leg portions 14 and 24, but also the lowermost end 5f of the leg recess rib 5e is lowered. The lower end 5f of the leg recess rib 5e is also in contact with the protruding portion lid surface 5b of the lower pallet in the same manner as the legs 14 and 24. Abut. For this reason, since the load of the upper pallet is averagely distributed to these contact portions, unnecessary stress does not act on the pallet, and deformation associated therewith can be prevented.

(Guide groove)
As described above, when the sleeve S is erected on the mounting surface 1 a of the pallet P, the guide groove 7 that supports the sleeve S and positions the sleeve S is provided along the outer peripheral edge of the upper surface of the mounting portion 1. (See FIGS. 1, 2, and 7).
As shown in FIGS. 7 and 13, the guide groove 7 includes an outer wall portion 7 a provided along the outer peripheral edge of the mounting portion 1, an inner wall portion 7 b facing the outer wall portion 7 b, and a groove bottom portion 7 c connecting them. It has an opening above. Since the heights of the wall surfaces 14b and 24b constituting the outer wall of the pallet are lower than the placement surface 1 at locations where the leg portions 14 and 24 are located, the guide grooves 7 are not provided. In the present embodiment, two guide grooves 7 are provided between the leg portions 14 and 24 of the pallet P. In the outer wall portion 7a of the guide groove 7, the height of the left and right ends, which are the direction along the periphery of the pallet P, is higher than the height of the placement surface 1a, and the height of the center portion 7a1 is the height of the placement surface. It is lower than 1a. The height WH from the placement surface 1a of the uppermost end 7f of the left and right ends of the outer wall portion 7a is a value obtained by subtracting the height H of the wall surface 24b constituting the outer wall of the pallet from the thickness T of the placement portion 1 (nesting clearance). NC = H−T). For this reason, even when nesting is performed, it is possible to prevent the upper and lower pallets from interfering with each other in the outer wall portion 7a.

Moreover, as shown in FIG. 7, the inner wall part 7b has the inclined surface 7d in the connection part with the upper surface 1a of a mounting part. For this reason, the opening of the guide groove 7 is expanded from the groove bottom 7c.
Therefore, since the sleeve S can be easily put into the bottom groove portion 7c of the guide groove 7 when the sleeve S is erected in the guide groove 7, workability when assembling the container C is improved. The inclined surface 7d may be a curved surface or a combination of a plurality of inclined surfaces.

(Fork insertion slot)
As shown in FIGS. 1 and 13, two outer wall portions 7 a are provided between the side leg portion 14 and the corner leg portion 24 on each side surface of the pallet P, and the side leg portion 14 and the corner leg portion 24 are provided. Are connected to wall surfaces 14b and 24b constituting the outer wall of the pallet. This outer wall portion 7a constitutes a guide groove 7 that guides the sleeve S when the pallet P is assembled as a container. When the pallet P is nested, the forklift claw is inserted at an arbitrary position. It is formed to be easy. That is, as shown in FIG. 13, both end portions of the outer wall portion 7a are formed to be higher than the placement surface 1, and the central portion of the outer wall portion 7a sandwiched between these is formed to be lower than the placement surface 1a. Has been. Specifically, the center upper end 7a1 of the outer wall portion 7a is not only formed at a position lower than the placement surface 1a, but also the connecting portion 7b1 where the inner wall portion 7b and the inclined surface 7d are connected. It is formed to be lower than the position. However, it may be higher than the connection portion 7b1.
The height of the lower end 7g of the outer wall portion is higher than the lowest end 1e of the rib 1c, which is the lowest end of the placement portion 1. Of the ribs 1c, the rib that continues to the outer wall portion 7a is inclined upward so as to be connected to the lower end 7g of the outer wall portion. In addition, since the inclined surface 1d is provided at a location where the inner wall portion 7b and the upper surface of the placement portion 1 are connected, the fork insertion port 6a is expanded from the forklift clearance NC.
Since the outer wall portion 7a is formed in such a shape, as shown in FIGS. 6 and 9, the fork insertion port 6a is formed together with the inclined surface 1d and is nested from an arbitrary location using a forklift. When the pallet is taken out, a fork insertion opening 6a having an opening larger than the nesting clearance NC is secured, and it becomes easy to insert the pawl of the forklift between the pallets. The more detailed shape of the outer wall portion 7a can be determined according to the interval and size of the forklift claws.

(Leg guide)
As shown in FIGS. 3 and 4, the leg portions 14 and 24 are provided with a guide piece receiving portion 11 for accommodating the guide piece 10 and the corresponding guide piece 10 so that the pallets smoothly overlap when nesting is performed. ing.
The guide piece 10 has a trapezoidal shape constricted at an overlapping angle θ from the bottom surface 14c, 24c to the same height as the top surface 1a of the mounting portion on the wall surfaces 14a, 24a that do not constitute the pallet outer wall in the housing recesses 14d, 24d. It is formed as a convex piece. The guide piece receiving portion 11 is a concave portion provided in a front-back relationship on the wall surface 4a that does not constitute the pallet outer wall on which the guide piece 10 is provided.
Because of this arrangement, the upper pallet guide piece 10 is received and guided by the lower pallet guide piece receiving portion 11 during nesting. Therefore, the pallets can be smoothly stacked.

(container)
As shown in FIG. 10, when used as a prefabricated container A, a sleeve S is provided upright on a pallet P so as to surround a conveyed product. The sleeve is inserted into the guide groove 7 on the pallet P, and the installation position of the sleeve S is determined. The opening Sa formed on the upper side of the sleeve S is closed with a cap C and assembled as a container.

(Placing surface cover)
Since the mounting surface 1a of the pallet P is formed with the recesses 4d, 14d, and 24d as described above, a sheet-like cover (not shown) that covers the entire mounting surface 1a when the transported material is mounted. May be provided. When such a cover is placed to cover the recess, the unevenness is absorbed when the transported object is moved along the mounting surface 1a on the mounting surface 1a, such as when the transported object is mounted on the pallet P. 4d, 14d, and 24d can be prevented from being caught. Moreover, about a cover, it can also be set as anti-slip by employ | adopting an appropriate material and setting it as an appropriate surface state.

(sleeve)
The standing sleeve S constitutes the side wall of the container A. As shown in FIG. 10, the lower end Sa of the sleeve S is formed along the shape of the pallet P. That is, when the sleeve S is inserted into the guide groove 7 of the pallet P, the lower end Sa of the sleeve S is formed so as to come into contact with the bottom surfaces of the housing recesses 14d and 24d at the side leg portion 14 and the corner leg portion 24 of the pallet. Is done. In this case, it is desirable that the shape of the sleeve lower end Sa conforms to the shape of the bottom surface so as to increase the contact area as much as possible.

The sleeve S formed in this way and assembled on the pallet P is erected vertically on the periphery of the pallet P, and the sleeve lower ends Sa abut against the bottom surfaces of the side leg portion 14 and the corner leg portion 24. Even when stacked as shown in FIG. 5, the upper and lower sleeves S1, S2 are arranged in a straight line up and down via the cap C1 and the leg portion 14 (24). For this reason, an unnecessary bending moment does not act on the member of the assembly type container A1. Therefore, a highly durable container can be provided when stacking.
When the sleeve S is erected on the pallet P, a fastener (not shown) for fastening the sleeve S to the pallet P may be used. Moreover, you may use the fastener which fastens the cap C, when the cap C is put on. When the fastener is used in this manner, the sleeve S can be securely fastened to the pallet P, and the cap C can be securely fastened to the sleeve S as well. If the fastener is detachable, it is convenient to separate the members constituting the container A when the container A is disassembled.

With reference to FIG. 11, the advantage that the upper and lower sleeves are arranged in a straight line through the legs and the cap when stacked will be described in more detail. FIG. 11 is a schematic cross-sectional view of the main part (the same cross section as FIG. 7) when the assembly type container A of the present embodiment is stacked in two stages, and shows a difference from the conventional assembly type container.
Consider a load transmitted when containers A are stacked. Containers are stacked from bottom to container A1, container A2, container A3,..., Container An, and FIG. 11 shows two containers A1 and A2 from the bottom. The load received by the container A1 can be divided into those contributed by the container A2 and those contributed by the containers A3, ..., An stacked above the container A2.

  First, considering what the container A2 contributes, the weight of the container A2 itself and the weight of the transported material of the container A2 are dominant. These are transmitted to the lower container A1 through the legs 14 (24) of the container A2. In the case of the present embodiment, the bottom surface 14C (24C) of the leg portion 14 (24) disposed on the periphery of the mounting portion 1 is above the sleeve S1 of the lower container A1 via the thickness of the cap C1 of the lower container A1. Is riding. For this reason, the load contributed by the container A2 is linearly transmitted to the sleeve S1 through members such as the leg bottom 14C (24C) of the container A2 and the cap C1 of the lower container, and is unnecessary for the lower container A1. The moment load is not generated.

  Next, the contribution of the containers A3,..., An stacked in the container A2 is a load transmitted to the container A1 via the sleeve S2 of the container A2. Referring to FIG. 11, the upper container A2 is stacked on the lower container A1. In the leg portion 14 (24) of the upper container A2, the lower end portion of the sleeve S2 of the upper container A2 extends to and contacts the bottom surface 14C (24C) of the leg portion 14 (24). The sleeve S2 has a linear positional relationship in the vertical direction with respect to the sleeve S1 through the leg bottom 14C (24C) and the thickness of the cap of the lower container A1. Therefore, the load received by the sleeve S1 from the sleeve S2, that is, the load of the containers A3,..., An stacked above the container A2 transmitted via the sleeve S2, is the leg bottom surface 14C (24C) of the upper container A2. In addition, although it is via a member such as the cap C1 of the lower container A1, it is transmitted linearly to the sleeve S1, and no unnecessary moment load is generated in the lower container A1.

Therefore, in any case, an unnecessary moment load is not generated in the lower container A1.
As described above, when the containers A of the present embodiment are stacked, the upper leg bottom surfaces 14c and 24c are placed on the lower sleeve S1 while maintaining a nestable structure, and the upper The sleeve S2 and the lower sleeve S1 are arranged so as to be linear in the vertical direction. For this reason, an unnecessary moment load is not generated in the lower container A1. Therefore, the malfunction (refer FIG. 12) which generate | occur | produces when stacking the container using the pallet which has a taper-shaped leg part predicated on nesting can be eliminated. In particular, the advantage of this embodiment will be apparent when stacking three or more stages.

(Loading efficiency improvement status)
Furthermore, the point which does not sacrifice the loading efficiency about the container A of this embodiment is demonstrated. In FIG. 11, a conventional example at the sacrifice of the loading efficiency is shown by a two-dot chain line. If the side walls constituting the outer wall of the pallet are tapered so that the upper and lower sleeves are linear, nesting is possible, but only Δd protrudes outward in the horizontal direction across the outer periphery of the container. Become. When this part is calculated with the pallet of this example, it is 1130 mm and Δd = 14.6 mm (θ = 96.3 °).
(1130 × 1130) / (1130 + 14.6 × 2) × (1130 + 14.6 × 2)
= 0.957
It becomes.
Therefore, it can be said that the pallet P of this example can reduce the occupation area by about 4.3% compared with such a conventional example, and can improve the loading efficiency. In addition, when transporting containers on container ships, etc., even if there is a slight difference, it may be arranged as much as one row, so it is expected that the loading rate will be further improved substantially. .

The perspective view from the top which shows an example of embodiment of the pallet which concerns on this invention Similarly perspective view from below Front view of the pallet in FIG. Rear view of the pallet in FIG. End view of the central section VV in FIG. End view of the two pallets in FIG. Enlarged view of the main part of Fig. 6 (side and four corner legs) Enlarged view of the main part of Fig. 6 (center leg) Schematic side view with 20 steps The perspective view which shows the assembly | attachment of the assembly-type container which concerns on this invention FIG. 1 is a schematic cross-sectional view of the main part showing the difference from a conventional pallet when stacking assembled containers using the pallet of FIG. Schematic cross-sectional view of main parts when stacking prefabricated containers using conventional pallets Enlarged view of the main part of Fig. 1 (XIII view) (fork insertion slot)

A, A1, A1 ′, A2, A2 ′: Assembling-type containers P, P1, P1 ′, P2, P2 ′, P3, P4,..., P20: Pallet T: Mounting part thickness H: Pallet outer wall Height from the bottom of the leg of the wall to be laid (nesting height)
NC: nesting clearance WH: height θ of the uppermost end 7f of the left and right end portions of the outer wall portion 7a from the mounting surface 1a, θ ′: taper angle h of the wall surface extending upward from the bottom surface of the leg portion h: pallet height ( The height of the pallet guide groove to the outer wall 7a)
t: Plate thickness S, S1, S1 ′, S2, S2 ′: Sleeve Sa: Opening Sb: Sleeve lower end C, C1, C1 ′, C2, C2 ′: Cap 1: Placement part 1a: Placement part upper surface (mounting Placement surface) 1b: Lower surface of the placement portion 1c: Reinforcement rib
1d: Inclined 1e: Lowermost end of the reinforcing rib 4: Central leg (leg)
14, 14 ': Legs (legs)
24, 24 ': Corner leg (leg)
4a, 14a, 24a: Wall surfaces 14b, 24b not constituting the pallet outer wall: Wall surfaces 4c, 14c, 14c ′, 24c, 24c ′ constituting the pallet outer wall: Bottom surfaces 4d, 14d, 24d: Housing recesses 4e, 14e, 24e: Housing Recessed ribs 4f, 14f, 24f: Upper end 5 of receiving recessed rib 5: Protruding portion 5a: Protruding portion wall surface 5b: Protruding portion cover surface 5c: Protruding portion mounting surface 5d: Leg recessed portion 5e: Leg recessed rib (inside leg recessed portion 5d) Some ribs)
5f: Lower end of leg recess rib
6: Fork insertion space (fork clearance)
6a: Fork insertion space (insertion slot)
7: Guide groove 7a: Outer wall portion 7a1: Center upper end 7b: Inner wall portion 7b1: Connection portion 7c: Groove bottom portion 7d: Inclined surface 7f: Outer wall portion upper end 7g: Outer wall portion lower end 10: Leg guide 11: Leg guide receiver

Claims (2)

A pallet for transportation (P) capable of nesting, comprising a placement part (1) on which a delivery object is placed and a plurality of legs (4, 14, 24) that support the placement part,
The placement section (1) is rectangular and plate-shaped,
At least four of the leg portions (4, 14, 24) are arranged along the periphery of the placement portion (1),
Each leg portion (4, 14, 24) includes a wall surface (4a, 14a, 14b, 24a, 24b) and a bottom surface (4c, 14c, 24c) connected to the wall surface. The housing recesses (4d, 14d, 4d, 14d, etc.) are formed so as to protrude toward the lower surface side of the mounting portion and have openings on the upper surface side of the mounting portion (1) to accommodate the corresponding leg portions during nesting. 24d) is formed,
Among the wall surfaces, the wall surfaces (4a, 14a, 24a) that do not constitute the outer wall of the pallet form a certain overlapping angle (θ) with the bottom surface (4c, 14c, 24c) and the bottom surface (4c, 14c, 24c). The wall surface (14b, 24b) that is formed so as to be narrowed toward the pallet, and that constitutes the outer wall of the pallet, is vertically arranged along the outer peripheral edge of the pallet from the bottom surface (14c, 24c). Formed to extend to a lower height (H),
The thickness (T) of the mounting portion (1) is configured to be smaller (T <H) than the height (H) of the wall surfaces (14b, 24b) constituting the pallet outer wall,
One of the legs (4) is provided so as to be arranged at the center of the mounting part (1), and the legs (4, 14, 24) are arranged so as to be arranged in a lattice as a whole. And
The mounting portion (1) has an outer wall portion (7a) along the outer peripheral edge of the upper surface, and the height of the upper end (7a1) of the central portion of the outer wall portion (7a) is the upper surface of the mounting portion. Lower than the height of
The height of the lower end (7g) of the outer wall portion (7a) is higher than the lowest end (1e) of the mounting portion (1),
The mounting portion (1) has a rib (1c) for reinforcement on the lower surface side thereof, and the rib connected to the outer wall portion (7a) of the rib (1c) is a lower end (7g) of the outer wall portion. The fork insertion port (6a) is widened with an inclination (1d) upward so as to connect to the pallet. A pallet for transportation (P) capable of nesting, comprising a placement part (1) on which a delivery object is placed and a plurality of legs (4, 14, 24) that support the placement part,
The placement section (1) is rectangular and plate-shaped,
At least four of the leg portions (4, 14, 24) are arranged along the periphery of the placement portion (1),
Each leg portion (4, 14, 24) includes a wall surface (4a, 14a, 14b, 24a, 24b) and a bottom surface (4c, 14c, 24c) connected to the wall surface. The housing recesses (4d, 14d, 4d, 14d, etc.) are formed so as to protrude toward the lower surface side of the mounting portion and have openings on the upper surface side of the mounting portion (1) to accommodate the corresponding leg portions during nesting. 24d) is formed,
Among the wall surfaces, the wall surfaces (4a, 14a, 24a) that do not constitute the outer wall of the pallet form a certain overlapping angle (θ) with the bottom surface (4c, 14c, 24c) and the bottom surface (4c, 14c, 24c). The wall surface (14b, 24b) that is formed so as to be narrowed toward the pallet, and that constitutes the outer wall of the pallet, is vertically arranged along the outer peripheral edge of the pallet from the bottom surface (14c, 24c). Formed to extend to a lower height (H),
The thickness (T) of the mounting portion (1) is configured to be smaller (T <H) than the height (H) of the wall surfaces (14b, 24b) constituting the pallet outer wall,
One of the legs (4) is provided so as to be arranged at the center of the mounting part (1), and the legs (4, 14, 24) are arranged so as to be arranged in a lattice as a whole. And
The leg portions (4, 14, 24) include a projecting portion (5) and a projecting portion (5) formed so as to project upward in the housing recess (4d, 14d, 24d). Containing recessed ribs (4e, 14e, 24e) for reinforcement;
The accommodating recess ribs (4e, 14e, 24e) are formed to extend vertically upward from the bottom surface (4c, 14c, 24c), and the height of the upper end (4f) is a wall surface constituting the pallet outer wall The height (H) of (14b, 24b),
The protruding portion (5) has a wall surface (5a) extending from the bottom surface (4c, 14c, 24c) to the same height as the top surface (1a) of the mounting portion (1) while being constricted at the overlapping angle θ. The pallet which the upper surface side connected to these is comprised with the cover surface (5b) which comprises the upper surface (1a) of the said mounting part .

Images