JPH0343147B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a synthetic resin pallet consisting of a large number of molded bodies, which comprises an upper deck for supporting cargo;
It is composed of a number of supporting legs that form an insertion hole between which a fork of a forklift is inserted, and a lower deck or a shoe, and at least the upper deck or the lower deck has an edge board made of a shaped beam, and a deck board connected to a surface, each edge board having an upper chord section, a lower chord section and an intermediate web connecting both chord sections; , has a U-shaped hollow cross section that is closed on the outside and open on the inside,
When the edge board is combined with the deck board, the open side of the U-shaped hollow cross section of the edge board is closed to form a first hollow part having a square hollow cross section, and the hollow part has a similar shape. It relates to a type in which a support leg having a hollow cross section is connected to the support leg.

PRIOR ART In the case of known synthetic resin pallets of this type (see German Patent Application No. 2 403 374), the first hollow part is designed to withstand the German and Japanese synthetic resin pallet tests. It helps provide pallet rigidity. According to this synthetic resin pallet, the first hollow part is configured as a hollow frame, and this hollow frame is made up of a plurality of structural members, and these structural members are prepared in a so-called prefabricated manner. It is fixed to the side edge of the deck board. In this way, two first hollow sections extend parallel to each longitudinal edge of the pallet in the region of the hollow frame. In the case of this known synthetic resin pallet, the supporting legs also have a hollow cross section, and in the shoe pallet, the central shoe has a hollow cross section.

Problems to be Solved by the Invention In the case of this known multi-part synthetic resin pallet, the deck board itself, which occupies most of the upper deck and lower deck, which is the cargo loading surface, does not have a hollow cross section. The entire area of the board is constructed in a honeycomb or lattice shape by numerous vertical webs. In short, the entire deck board is one porous board. As a result, the pallets do not have sufficient rigidity. The object of the invention is to increase the lateral stiffness of known synthetic resin pallets of this type.

Means for Solving the Problem This object, according to the invention, provides a pallet made of synthetic resin of the type mentioned at the outset, in which at least the deck boards of the upper deck consist of a pair of deck board parts connected side by side to each other, each of which At least one deck board portion consisting of a vertical web
and at least one hollow portion having a U-shaped hollow cross section that is open toward the other deck board portion, and the open side of the U-shaped hollow cross section of the hollow portion is connected to the other deck board portion. This was achieved by closing it to form a second hollow part having a square-shaped hollow cross section.

With this configuration, the rigidity of the deck board is increased by the combination of the lattice structure portion and the second hollow portion, and as a result, the rigidity of the entire pallet is further increased and the weight of the entire pallet is also reduced.

Embodiments According to one embodiment of the invention, there is an intermediate deck board section between the deck board sections, the intermediate deck board section having an upper chord section, a lower chord section, and an intermediate web connecting both chord sections; The upper chord part, the lower chord part, and the intermediate web form a hollow part having a U-shaped hollow cross section that is open to the side, and the deck board part is connected to both sides of the intermediate deck board part, and the deck board part is connected to both sides of the intermediate deck board part. The open side of the hollow portion of the intermediate deck board portion is closed by the portion to form a second hollow portion.

In the embodiment, on both sides of the intermediate web of the intermediate deck board portion, there are hollow portions each having a U-shaped or inverted U-shaped hollow cross section that opens laterally from the intermediate web, the upper chord portion, and the lower chord portion, respectively. It is advantageous if it is formed.

In accordance with a further embodiment of the invention, it is advantageous if the first hollow part and/or the second hollow part are also closed at the end faces.

According to a further embodiment of the invention, it is advantageous if at least one support leg originates from the second hollow part of the deck board.

The support legs of the deck board may be integrally connected to the deck board portion having a second hollow portion.

Further, the support leg provided on the deck board may include a hollow portion having a closed hollow cross section around the entire circumference, and may vertically penetrate the second hollow portion.

Further, the support leg provided on the deck board has a hollow portion having a hollow cross section with a closed circumference, and the support leg portion forming the hollow portion is the deck board portion or intermediate deck board portion forming the second hollow portion. It is advantageous if the

Furthermore, it is advantageous if the support legs on the deck board are also closed at their end faces.

Furthermore, a third hollow portion having a circumferentially closed hollow cross section extending in a direction perpendicular to the second hollow portion
Advantageously, a hollow part is provided in the deck board.

Further, the end surface side of the third hollow portion can be closed by the edge board.

Further, the third hollow portions provided at both edges of the synthetic resin pallet together with the first hollow portion form a hollow frame surrounding the deck of the synthetic resin pallet. It is also possible to

Further, the third hollow chamber may be arranged to connect the central portions of the edge boards on both sides of the deck board to each other.

The lower deck also has at least one further third hollow section connecting the first hollow section and the third hollow section forming the hollow frame and the at least one second hollow section and the central area of the edge board to each other. Advantageously, a hollow part is provided to form four partial frames, each of which is provided with an opening on the underside for passing the wheels of the forklift.

It is also advantageous if the deck board part and the intermediate deck board part are of one-piece construction over their entire length.

Further, a plurality of deck board portions may be connected to each other in the longitudinal direction of the edge board.

The structure of the synthetic resin pallet of the present invention is applicable to single-deck pallets in which the upper deck is simply placed on supporting legs, pallets that can be used on one side or both sides, and shoe pallets. be able to.

The synthetic resin pallets according to the invention, for example made of polyethylene or polypropylene, are produced by injection molding, but other molding methods, such as suction molding, can also be used. In addition, in order to interconnect the individual constituent members of the synthetic resin pallet according to the present invention, such as the edge board, the intermediate deck board section, the deck board section, and, if necessary, separately manufactured support legs, various well-known methods can be used. The following method can be used. Preference is given to flat welding methods, as in the case of the known plastic pallets, but other welding or gluing methods and/or mechanical bonding methods can also be used. Further, although the term edge board is used, it goes without saying that other components may be connected to the outside of these edge boards.

Next, the present invention will be explained in detail according to embodiments shown in the accompanying drawings.

In each of the three embodiments of the synthetic resin pallet shown in FIGS. 1, 2, and 3, an upper deck 1 for supporting cargo is provided, which is designated by the reference numeral 3.
It is supported by supporting legs of the same height, shown together in . The first supporting leg 4 is made of synthetic resin pallet 4.
At the corner and a second support leg 5 is provided centrally between the corners of the pallet. The third support leg 6 is located in the center of the pallet, as can be seen from the exploded plan views of FIGS. 5, 6 and 7.

The supporting legs 3 form an insertion opening 8 between which a fork of a forklift is inserted. Figures 1 to 3
All the embodiments shown are constructed as so-called four-way pallets in which two pairs of inlets 8 are arranged on all four sides of the square pallet. However, the pallets may also be rectangular and/or simply constructed as two-way pallets. Further, the number of insertion ports 8 per side of the pallet may be two or more or less.

The embodiments shown in FIGS. 1 and 2 are each constructed as a multi-deck pallet in which a lower deck 9 is provided under the support leg 3. The lower deck 9 has substantially the same construction as the upper deck 1 in the embodiment shown in FIG. If the upper deck 1 and the lower deck 9 are configured to be the same, it is possible to create a double-sided pallet. However, if only the upper deck is used as the loading surface,
It is also possible to configure the lower deck 9 to be used simply as a support deck. For example, the upper deck and the lower deck can have different thicknesses, in particular the upper deck can be thicker than the lower deck.

FIG. 2 shows a variation of the embodiment shown in FIG. 1, in which there are four holes for the wheels of a forklift to enter between the outer frame part of the lower deck and the cross part bridging the outer frame part. Large bottom opening 10
is provided. These lower openings 10 are rectangular in the example embodiment, but may also have other shapes.

Instead of connecting the lower end of the support leg to the lower deck 9 as in the embodiment shown in FIG.
It can also be connected to 2. In the illustrated embodiment, 2
There are two outer shoes 12 and an inner shoe located between the outer shoes 12. However, it is also possible to omit the central shoe 12 or to provide more shoes 12 parallel to one another.

Furthermore, although not shown, as a variation of the embodiment of FIG. 1, FIG. 2 or FIG. 3, it merely has an upper deck 1 and a support leg 3,
A single deck pallet without the lower deck 9 or shoe 12 can also be used.

It is suitable to provide chamfers on the support leg 3 and on the wall of the deck adjacent to the spigot 8, so that a funnel-shaped guide is formed for the fork of the forklift. The chamfered portion 14 of the support leg 3 is the eighth
Figure d, Figure 9c, Figure 10d, Figure 11a, Figure 1
This is shown in detail in Figure 2b. Similar chamfer 1
5 is Fig. 8b, Fig. 9b, Fig. 10b, Fig. 11a
Also shown in the figure.

Each of these synthetic resin pallets is made up of a number of components that are assembled using a prefabricated method. In FIGS. 4 to 7, two edge boards 16 are provided on both outer edges of the synthetic resin pallet, and both of these edge boards 1
A deck board 18 is coupled to the inner surface of 6.
4 shows a deck board 18 consisting of two deck board sections 44, FIG. 5 shows a deck board 18 consisting of four deck board sections 44, and FIG. 6 shows a deck board 18 consisting of four deck board sections 44 and 1. Deck board 18 is shown comprising two intermediate deck board sections 58, and FIG. 7 shows deck board 18 comprising two intermediate deck board sections 44 and one intermediate deck board section 58.

Two embodiments of the outer edgeboard 16 are illustrated in FIGS. 4, 5, 6, and 7.

The edge board 16 shown in FIG. 4 is illustrated in detail in FIGS. 11a to 11e, and the edge board 16 shown in FIGS.
This is illustrated in detail in Figures 2a and 12b.

Common to all embodiments, edgeboard 16
is manufactured as a single piece over its entire height.
Both in the upper deck 1, the lower deck 9, and the shoe 12, the edge board 16 has an upper chord section 20 and a lower chord section 22 that extend almost horizontally, and an intermediate web 24 that connects both chord sections, and is closed on the outside. It also has a U-shaped hollow cross section that is open on the inside.

The intermediate web 24 extends along the edge of the upper deck 1 or the lower deck 9 or the shoe 12 and has a chamfer 15 in the area of the pallet insertion opening 8.

The first and second on the outer edge board 16
The supporting legs 4, 5 can be provided in two different ways.

In either type, the support legs 4, 5 have a closed hollow cross section over their entire circumference. In the embodiment of FIGS. 1, 2 and 4, this hollow section is reinforced by vertical intermediate walls 26 which intersect with each other. These intermediate walls 26 pass through the support legs 4 or 5 and are visible exposed on the upper and/or lower surfaces of the pallet in the embodiments of FIGS. 1, 2 and 4. The vertical passage of the intermediate wall 26 between the upper and lower surfaces of the pallet is also clearly shown in FIG. 11c. Furthermore, as can be seen by comparing FIGS. 1 and 2 with FIG. 4, the number of intermediate walls 26 parallel to the outer edge of the pallet can vary. That is, in the embodiment shown in FIG.
The first line does not extend along the center line of the first line.
In the embodiment of FIG. 2, two such intermediate walls 26 are shown. The same applies to the number of intermediate walls 26 that are perpendicular to the outer edge of the pallet.

When the supporting legs 4 and 5 are integrally arranged in this manner, the supporting legs 4 and 5 including the intermediate wall 26 are integrally formed with the edge board 16.

On the other hand, in the embodiments shown in FIGS. 3, 5, and 6, the supporting legs are formed by combining the edge board 16 and the deck board 18.
In this case, the support legs 4, 5 are reinforced by at least one first vertical intermediate wall 27 and/or at least one second horizontal intermediate wall 28 (see FIG. 12b). In this case, as shown in FIG. 12b, it is advantageous to provide the upper deck and optionally the lower deck or shoe with the upper chord part 20, the lower chord part 22 and the intermediate web 24 continuing in the area of the support legs 4, 5. If desired, only a horizontal intermediate wall 28 or only a vertical intermediate wall 27 can also be provided in the support leg.

In such an embodiment, the region of the support leg 4 or 5 which is closed towards the outside of the pallet, together with the lower chord part 22 of the upper deck and the upper chord part 20 of the lower deck or shoe, is in the gap facing the deck board 18. Hollow cross section 3 opened in shape or box shape
form 7. When the deck board 18 is connected to the edge board 16, the hollow section 37 is closed with the outer circumferential web 36 to form a hollow portion with a closed periphery. At the same time, the outer circumferential web 36 closes a hollow portion having a U-shaped cross section formed by the upper chord section 20 of the upper and lower decks or shoes, the lower chord section 22, and the intermediate web 24 into a square-shaped section, respectively. A first hollow portion 32 is formed. As a result, one first hollow portion 32 extends horizontally along the two edges at least within the upper deck, and optionally within the lower deck or shoe. Further, a supporting leg 4 or 5 extends vertically from one hollow portion. This supporting leg 4 or 5
It also has a closed hollow section all around for reinforcement purposes. The first hollow part 32 is divided into individual box-shaped parts 35 by vertical intermediate walls 34, as shown in FIG. 12b.

A hollow portion having a U-shaped cross section that is open toward the deck board 18 and is formed by the upper chord portion 20, the lower chord portion 22, and the intermediate web 24 of the outer edge board 16 is shown in FIGS. In all the embodiments of FIG.
8 vertical circumferential webs 36 to form the first hollow portion 32 . In the embodiment shown in FIGS. 5 to 7, a gap-shaped or box-shaped hollow section 38 is integrated in the deck board 18 in order to close the hollow section 37 of the support leg 4 or 5 on the outer edge board 16. It is molded into.
This hollow section 38 complements the open section 37 of the corresponding support leg 4, 5 and its intermediate wall 27 or 28.

With such a configuration, it is possible not only to close the relevant support legs 4 and 5 on the inside, but also to achieve a large support leg width compared to the width of the outer edgeboard 16 (see FIGS. 5, 6, and 6). (See Figure 7).

The two structural types of the support legs 4 and 5 and the first hollow portion 32 can be selectively implemented in various configuration examples as shown in FIGS. 4 to 7.

Inside the circumferential web 36, a large area of the deck board 18 has a lattice structure formed by vertical webs 40. These vertical webs 40 extend parallel to each edge of the plastic pallet and intersect each other at right angles to form a rectangular lattice structure. Of course other grid structures are also possible. To the vertical web 40, for example, as shown in FIG. 8b or 10b, a horizontal reinforcing web 42 having a one-sided L-shape or a two-sided T-shape is connected at right angles to the inner surface of the upper deck 1 or the lower deck 9. Additional reinforcement can be achieved by However, this relatively rigid lattice structure does not have the same rigidity as a hollow section that is closed all around. For reinforcing the deck board 18, at least one further hollow section, a second hollow section 46, is provided. In the embodiment of FIGS. 4 to 7, the deck board 18 is comprised of a plurality of deck board sections 44, each of which has a first section on one side, to form a second hollow section within the deck board 18. It has a circumferential web 36 for closing the hollow part 32 and on the other side vertical webs 40 forming a lattice structure.

In the simplest embodiment of the structure shown in FIG.
Two such deck sections 44 are used (see Figure 8a). As shown in FIG. 8b, the mating sides of each deck portion 44 are connected to the deck board 1 of the aforementioned outer edge board 16.
It has almost the same cross-sectional shape as the 8th side. In this case too, between the upper chord part 20, the lower chord part 22 and the intermediate web constituted by the outermost vertical web 40 of the lattice structure, there is a U-shaped opening towards the other deck board part 44. Alternatively, an inverted U-shaped hollow cross section is formed. The two U-shaped or inverted U-shaped hollow cross sections of the two deck portions 44 adjacent to each other form a second hollow portion 46 having a hollow cross section closed in the shape of a square. The hollow portions 46 are formed along the center line of the pallet at equal intervals with respect to the first hollow portions 32 formed on both outer edge board sides. In some cases, the upper chord part 20 and the lower chord part 22 of the two U-shaped hollow sections forming the second hollow part 46 can have different lengths, and in extreme cases one of the decks can have different lengths. Such a U-shaped hollow cross section is provided only in the portion 44,
In the same way as the first hollow part can be formed, it can also be closed in a square shape by the side walls of the other deck part 44, which corresponds to the circumferential web 36.

The second hollow portion 46 is marked in broken lines in Figures 8a, 8c and 9a. Like the first hollow part 32, this second hollow part also has a vertical intermediate wall 34, which forms a number of box-shaped parts 35.
It is divided into

In the embodiment shown in FIG. 4, the two edge legs 5 and the central leg 6 pass through the second hollow part 46. In this case, both deck parts 44
Complementary portions 48 and 50 constitute each support leg. These legs are also internally reinforced by vertical intermediate walls 26 which intersect each other.

The supporting leg 5 has a hollow cross section with a closed circumference,
The second hollow part 46 is designed to be closed also at the end face. This is indicated at 51 in FIG. 8a. Furthermore, the first hollow part 32 is also closed off at its end by the support leg 4 of the outer edgeboard 16.

Furthermore, both deck parts 4 of the deck board 18
4 are each configured with three third hollow portions 52. Two of them are formed in both upper decks 1 and lower decks 9 between the two supporting legs 4 located at the corners of the pallets, and together with the first hollow parts 32 in the outer edge boards 16. Another third hollow portion 52 forms a hollow frame.
is formed between both supporting legs 5 at the center of both outer edge boards 16, and together with the second hollow portion 46, is a cross-shaped hollow extending at right angles to the second and first hollow portions. Part board 1
Form within 8. The third hollow portion 52 also has a plurality of box-like portions 5 formed by a vertical intermediate wall 54.
It is divided into 5. As can be seen from FIGS. 8a and 8c, the central support leg 6 has a third hollow portion 52.
It has a width greater than the width of .

For the lower opening 10 in the lower deck 9, the first, second and third hollow parts 32, 46, 52 are formed by a central cross-shaped hollow part and an outer hollow frame, as shown in FIG. 8c. Form four partial frames. In this case as well, the hollow cross section of all the hollow parts is formed by the upper chord part 20, the lower chord part 22 and the intermediate web connecting these chord parts.

The embodiment shown in FIG. 5 differs from the embodiment shown in FIG. 4 primarily in that the deck board 18 consists of four deck board sections 44 instead of two deck board sections 44; Two of these complement each other to form the one shown in FIG. 4, so to speak. This embodiment can be implemented without changing other parts of the configuration shown in FIG. Conversely, even in the case of the embodiment shown in FIG. 5, it is also possible to provide supporting legs having a structure that penetrates vertically as shown in FIG.

On the other hand, as shown in FIG. 5, the supporting legs of the second hollow portion 46 can be formed so that their end faces are closed from the side, similarly to the supporting legs 4 of the first hollow portion 32.

In this case, the central support leg 5 of the edge board 16 on both outer sides is formed of this edge board 16 and two edge board parts 44 adjacent to it,
The support leg 6 in the center of the pallet is composed of four mutually complementary sections of four deck board sections 44. The corner supports 4 as well as the intermediate supports 5 each consist of two complementary components. The internal structure of the support leg 5 of the deck board is illustrated in FIG. 9b. As can be seen, at least one vertical intermediate wall 27 and/or at least one horizontal intermediate wall 28 is provided for internally reinforcing this support leg 5 .

Variations such as those shown in FIG. 6 are possible, particularly with respect to the shoe palette, and also to the palettes described with reference to FIGS. 1 and 2, including single-sided pallets. This embodiment differs from the embodiment shown in FIG. 5 in the following points. That is, there is still one layer between the two pairs of deck board portions 44.
Two intermediate deck board sections 58 are inserted as separate components. The structure is illustrated in detail in Figures 13a and 13b. This intermediate deck board portion 58 has an upper chord section 20 and a lower chord section 22 in both the upper and lower decks 1 and 9, and both of these chord sections 20 and 22 are different from the intermediate web 24 disposed on the outer edge side of the outer edge board 16. Differently,
They are connected to each other by centrally located intermediate webs 24 and are divided by vertical intermediate walls 26 into a number of hollow sections which are open in a U-shape towards the deck board section 44. These hollow portions are complemented by similar but slightly deeper hollow portions at the side edges of the deck board portion 44, forming second hollow portions in the same manner as already described with respect to FIG. form 46.

Between the upper deck 1 and the lower deck 9, there is also provided an outer peripheral range 60 of supporting legs 5 at both ends and supporting legs 6 in the center, which complement each other.
It is internally reinforced by at least one vertical intermediate wall 27 and/or by at least one horizontal intermediate wall 28 .

Intermediate web 24 allows two second
The hollow portions 46 of are formed in pairs.

Unlike the embodiment shown in FIG. 3, as shown in FIG. 9c, the shoe 12 is
In the same way, it is composed of multiple complementary members, and 1
It can also have two closed hollow cross sections. This can also be seen in the cross-sectional view of FIG. 9b. The only difference compared to the construction of the supporting legs 5, 6 is that in the area of the shoe 12, complementary parts extend over the entire length of the pallet. Like the supporting legs, this shoe 12 can also be reinforced by vertical and/or horizontal intermediate walls.

The third hollow part 52 of the deck board 18, which consists of two deck board parts 44, is formed by lateral cores, whereas in the embodiment of FIG. The third hollow portion 52a formed between each two deck board portions 44 that are joined together by the second hollow portion 52a in the embodiment of FIG.
(see figure), it is composed of two complementary hollow cross-section parts, and each of these hollow cross-section parts has a first chord part 20 and a top chord part 20, as shown in Fig. 9b.
It is formed from a lower chord part 22 and an intermediate web 24. This arrangement is not only provided in the case of shoe pallets, but also whenever a number of mutually connected deck board sections 44 are provided along the outer edge board 16, as in the embodiment of FIG. 5 or 6. Are suitable.

FIG. 7 shows an embodiment in which the embodiments of FIGS. 4, 5, and 6 are combined.

Here, the support legs 4 and 5 formed on both outer edge boards 16 are constructed with their end faces closed, similar to the embodiment shown in FIG. The detailed structure is the same as that shown in FIG.

Similar to the embodiment of FIG. 4, the embodiment of FIG. 7 has only one deck board section 44 along each outer edgeboard 16. On the other hand, like the embodiment of FIG. 6, an intermediate deck board section 58 is provided between the two deck board sections 44, which extends the second hollow section 46 as shown in FIGS. 11a and 11c. As shown in the figure, a U-shaped hollow section between the upper chord part 20, the lower chord part 22, and the intermediate web 24 (FIG. 11d) forms a U-shaped hollow cross-section with deck board parts 44 connected on both sides.
On the other hand, the embodiment of FIG. 7 has a structure in which the support legs 5 and 6 pass through the intermediate edgeboard portion 58, as described for the edgeboard 16 of the embodiment of FIG. In this case as well, the supporting legs 5, 6 are reinforced by vertical intermediate walls 26 which intersect each other at right angles. The number of intermediate walls 26 can be varied as in the case of edgeboard 16.

A first hollow portion 32 extends along both outer edge boards 16 except for the area where the support legs 5 and 6 are arranged. Third hollow part 52
is also formed between the outer edge board 16 and the intermediate deck board part 58, except in the area of the support legs 5, 6, and also between the support legs 5 and 6. However, as in the embodiment of FIGS. 9a and 9b, the second and third hollow portions also pass through the support legs;
Optionally, the reinforcing structure of the supporting legs can also be adapted to the reinforcing structure of the hollow parts, so that the deck and/or shoe and the hollow parts of each supporting leg are connected in an operationally consistent manner to each other.

Figures 11a, 11c, 11d and 1
As you can see from Figure 1e, the upper deck 1
can also be provided with a greater thickness than the lower deck 9 or possibly the shoe 12.

[Brief explanation of drawings]

The accompanying drawings show embodiments according to the invention,
Fig. 1 is a perspective view of a double-sided pallet according to the present invention in which the upper and lower decks are constructed almost identically, and Fig. 2 is a perspective view of a double-sided pallet in which the lower deck is provided with a lower opening for passing the wheels of a forklift vehicle. FIG. 3 is a perspective view of a shoe pallet, and FIG. 4 shows the upper deck configuration of the double-sided pallet shown in FIG. 1. Alternatively, FIG. 5 is an exploded plan view of a four-piece configuration that can also be applied to a shoe pallet. FIG. 5 shows the upper deck configuration of the shoe pallet shown in FIG.
Fig. 6 is an exploded plan view of a 6-piece configuration that is also applicable to double-sided pallets, and Fig. 7 is an exploded plan view of a 7-piece configuration.
The figure shows an exploded plan view of a five-piece upper deck structure that is a combination of the embodiments shown in FIG. 1, FIG. 2, and FIG. 3, and FIG. 8a is a plan view of the deck board portion shown in FIG. 4. Figure 8b is A- of Figure 8a.
8c is a bottom view of the deck board portion of the embodiment shown in FIG. 2, FIG. 8d is an end view of the deck board portion shown in FIG. 8a, and FIG. 8e is FIG. 8c. FIG. 9a is a plan view of the deck board part shown in FIG. 5, which is also applied to the embodiment of FIG. C-C in figure 9a
9c is an end view of the deck board portion shown in FIG. 9a, and FIG.
Plan view of the deck board portion shown in Figure 10b
The figure is a sectional view taken along line D-D in Figure 10a,
Figure 0c is the first diagram used in the embodiment shown in Figure 2.
0a is a bottom view of the deck board, FIG. 10d is an end view of the deck board portion shown in FIG. 10a used in the embodiment shown in FIGS. 1 and 2, and FIG. 11a is a side view of the outer edge board shown in FIG. 4 or the intermediate deck board part shown in FIG. 7; FIG. 11b is a plan view of FIG. 11a;
Fig. 11c is a sectional view taken along the line FF in Fig. 11b, Fig. 11d is a sectional view taken along the line G-G in Fig. 11b configured as an intermediate deck board portion, and Fig. 11e is a sectional view of the outer FIG. 12a is a plan view of the outer edge board shown in FIGS. 5 to 7, and FIG.
13a is a plan view of the intermediate deck portion shown in FIG. 6, and FIG. 13b is a side view of the intermediate deck board portion. 1... Upper deck, 3-6... Support leg, 8... Inlet, 9... Lower deck, 12... Shuttle, 1
6...Edge board, 18...Deck board, 2
0... Upper chord part, 22... Lower chord part, 24... Intermediate web, 32... First hollow part, 44... Deck board part, 46... Second hollow part, 52,5
2a...Third hollow part, 58...Intermediate deck board part.

Claims (1)

[Scope of Claims] 1. A synthetic resin pallet consisting of a large number of molded bodies, which includes an upper deck 1 for supporting cargo, and a large number of supporting legs 3 that form insertion ports 8 into which forks of a forklift are inserted. , 4, 5, 6 and a lower deck 9 or shoe 12, at least the upper deck 1 or the lower deck 9 includes an edge board 16 made of a shaped beam, and a deck board in which at least the upper deck 1 or the lower deck 9 is connected to the inner surface of the edge board 16. 18
Each edge board 16 is composed of
A U-shaped hollow cross section that is closed on the outside and open on the inside, and has an upper chord section, a lower chord section, and an intermediate web that connects both string sections, and is formed by the upper chord section, the lower chord section, and the intermediate web. When the edge board 16 is combined with the deck board 18, the open side of the U-shaped hollow cross section of the edge board 16 is closed, thereby forming a first hollow portion 32 having a U-shaped hollow cross section. The hollow portion 32 is provided with a supporting leg 3 having a hollow cross section.
4, 5 are connected, at least the deck board 18 of the upper deck 1 comprises a pair of deck board parts 44 connected side by side to each other, each deck board part 44 having at least one vertical web 40. at least one having a lattice structure portion and a U-shaped hollow cross section that is open toward the other deck board portion 44;
The open side of the U-shaped hollow section of the hollow section is the other deck board section 44.
A synthetic resin pallet characterized in that it is closed to form a second hollow portion 46 having a square-shaped hollow cross section. 2. An intermediate deck board portion 58 is provided between the deck board portions 44, and the intermediate deck board portion 58 has an upper chord portion, a lower chord portion, and an intermediate web connecting both string portions; A hollow portion having a U-shaped hollow cross section opened laterally is formed by the web, and the deck board portions 44 are connected to both sides of the intermediate deck board portion 58.
4. The synthetic resin pallet according to claim 1, wherein the open side of the hollow portion of the intermediate deck board portion 58 is closed by a screw 4 to form a second hollow portion 46. 3. On both sides of the intermediate web of the intermediate deck board portion 58, hollow portions having a U-shaped or reverse U-shaped hollow cross section are formed that open laterally from the intermediate web, the upper chord portion, and the lower chord portion, respectively. A synthetic resin pallet according to claim 2. 4. Any one of claims 1 to 3, wherein the first hollow part 32 and/or the second hollow part 46 are also closed at the end faces.
Synthetic resin pallet as described in section. 5. at least one support leg 5, 6 emanates from the second hollow portion 46 of the deck board 18;
A synthetic resin pallet according to any one of claims 1 to 4. 6 The deck board portion 48 in which the supporting legs 5 and 6 of the deck board 18 have a second hollow portion 46
Alternatively, the synthetic resin pallet according to claim 5, which is integrally connected with the intermediate deck board portion 58. 7 Support legs 5 provided on the deck board 18,
6. The synthetic resin pallet according to claim 5, wherein the pallet 6 has a hollow portion having a closed hollow cross section around the entire circumference and passes through the second hollow portion 46 in the vertical direction. 8 Support legs 5 provided on the deck board 18,
6 comprises a hollow part having a closed hollow cross section around the entire circumference, and the supporting leg part forming the hollow part forms the second hollow part 46.
4 or an intermediate deck board portion 58, the synthetic resin pallet according to claim 5. 9 supporting legs 5 provided on the deck board 18;
9. A synthetic resin pallet according to claim 8, wherein the pallet 6 is also closed at the end face. 10. The deck board 18 is provided with a third hollow section 52 extending in a direction perpendicular to the second hollow section 46 and having a closed hollow cross section all around the circumference. A synthetic resin pallet according to any one of items 5 to 5. 11. The synthetic resin pallet according to claim 10, wherein the end surface side of the third hollow portion 52 is closed by the edge board 16. 12 The third hollow portion 52 provided at both edges of the synthetic resin pallet is connected to the first hollow portion 32.
The synthetic resin pallet according to claim 10 or 11, which together with the synthetic resin pallet forms a hollow frame surrounding the deck of the synthetic resin pallet. 13. Claim 1, wherein said third hollow portion 52 connects central portions of said edgeboard 16 on opposite sides of said deckboard 18 to each other.
A synthetic resin pallet according to any one of items 0 to 12. 14 a first hollow part 32 and a third hollow part 52 forming the hollow frame in the lower deck 9;
At least one second hollow part 46 and at least one further third hollow part 52a connecting the central area of the edge board 16 to one another are provided, forming four partial frames, these 14. A synthetic resin pallet according to claim 13, wherein each of the partial frames is provided with a lower opening 10 for passing the wheels of a forklift. 15. The synthetic resin pallet according to any one of claims 1 to 14, wherein the deck board portion 44 and the intermediate deck board portion 58 are of integral construction over their entire height. 16. A plurality of deck board portions 44 are connected to each other in the longitudinal direction of the edge board 16.
A synthetic resin pallet according to any one of claims 1 to 15.