WO2018020823A1

WO2018020823A1 - Cargo handling pallet

Info

Publication number: WO2018020823A1
Application number: PCT/JP2017/020248
Authority: WO
Inventors: 孝鶴田
Original assignee: アドバンスド・ロジテックジャパン株式会社
Priority date: 2016-07-25
Filing date: 2017-05-31
Publication date: 2018-02-01
Also published as: CN107651274A; KR20190030652A; CN207242301U; TWI636923B; TW201805209A; EP3453639A4; HK1244765B; US20190308770A1; JP2018016325A; SG11201810754PA; CN107651274B; JP6150152B1; EP3453639A1

Abstract

Provided is a cargo handling pallet that improves both loading efficiency and work efficiency. The present invention comprises: a placing surface part that has a rectangular plate-like shape and on which cargo is placed; and a ground contacting surface part that is parallel to the placing surface part and contacts a pallet supporting surface. The present invention is characterized by the following: having a structure in which at least one out of four edge portions of the placing surface part is formed as an eaves-shaped edge portion along the entire or part of the length thereof and a recess is defined below the eaves-shaped edge portion in which the pallet supporting surface is exposed and into which a leading end portion of a fork is inserted; the eaves-shaped edge portion having, in a lower surface thereof, a sliding-contact portion that slidingly contacts an upper surface of the leading end portion of the fork; the depth of the recess being set so as to be greater than a fork insertion length when the upper surface of the leading end portion of the fork first contacts the sliding-contact portion; and a fork insertion gap appearing between the ground contacting surface part and the pallet supporting surface contacting the ground contacting surface part, when the eaves-shaped edge portion is lifted up by the sliding contact between the sliding-contact portion and the upper surface of the leading end portion of the fork.

Description

Pallet for cargo handling

The present invention relates to a cargo handling pallet that serves as a platform for loading cargo during cargo handling operations such as cargo loading, unloading, and transporting.

This type of cargo handling pallet is premised on the fork lift truck fork (claw) being inserted, scooped up, lifted and lowered together with the cargo, and transported, and then forked. Therefore, how smoothly the fork can be inserted and removed is an important element of the cargo handling pallet.

Conventionally, a rectangular thick plate-shaped cargo handling pallet called a conventional pallet (“flat pallet” in Japan) has been the mainstream, and this pallet has a loading surface portion on which cargo is placed, a pallet support surface such as the ground, and the like. A fork pocket (fork insertion space) in which a fork can be inserted and removed between the mounting surface portion and the ground surface portion with a gap (see, for example, FIG. 1 of Patent Document 1 below). ).

The conventional pallet has the advantage that the fork can be inserted and removed smoothly due to the presence of the fork pocket, but on the other hand, if the balance between the formation of a sufficiently large fork pocket and strength is achieved, the thickness of the pallet becomes the thickness of the fork (general fork The thickness is about 45 mm), which is several times 120 mm to 200 mm. Therefore, in the conventional conventional pallet, the volume is increased by the thickness of the pallet and the volume in the container or the warehouse is eroded, resulting in a decrease in cargo loading efficiency.

Therefore, as disclosed in Patent Document 1 below, a cargo handling pallet that has been formed as thin as possible by eliminating the fork pocket has been developed. The cargo handling pallet disclosed in Patent Document 1 is a pallet made of plywood having a thickness of 2.5 mm to 5.5 mm with a front surface side as a mounting surface portion and a back surface side as a grounding surface portion, and includes four edges of the mounting surface portion. In this structure, an inclined piece portion is formed so as to rise obliquely from at least one of the first and second portions.

Japanese Utility Model Publication No. 60-13333

Since the pallet for cargo handling of the above-mentioned Patent Document 1 has a thin pallet thickness, the volume of the pallet itself can be reduced, but the inclined piece portion is extended from the placement surface portion, and above the inclined piece portion. Has a problem that a useless space where cargo cannot be placed is generated. For this reason, the loading efficiency has not been improved significantly.

Further, in the cargo handling pallet disclosed in Patent Document 1, when the fork is inserted between the grounding surface portion and the pallet support surface such as the floor surface or the ground, the inclined piece portion is gripped and pulled by the push-pull device. It must be done (page 8, second paragraph, Fig. 8). That is, the complicated operation | work which operates a push pull apparatus and a fork simultaneously arises, and it has the problem that work efficiency is remarkably bad compared with the operation | work performed only with a fork.

In addition, when the cargo handling pallet of the above-mentioned Patent Document 1 exists on the floor surface or the ground, that is, on the pallet support surface that also extends to the near side of the inclined piece portion, a fork (fork with a roller) incorporating a roller conveyor is used. It is possible to insert the fork between the grounding surface portion and the pallet support surface without using a push-pull device if a fork represented by a representative top surface of the tip portion is inclined downward toward the tip is accurately operated.

However, when cargoes are stacked in multiple stages using the cargo handling pallet described in Patent Document 1, if an attempt is made to work on the second and higher pallets, the grounding surface portion of the pallet and the pallet support surface (lower cargo The pallet support surface cannot be visually recognized because it is substantially the same area but overlaps, and it is difficult to grasp to what level the tip of the fork is moved. Therefore, naturally, it is difficult to insert a fork between the ground contact surface of the second and higher pallets and the pallet support surface, and there is a risk of damaging the lower cargo.

As described above, in the cargo handling pallet of Patent Document 1 described above, a wasteful space in which cargo cannot be placed is generated even though the pallet thickness can be reduced to reduce the volume. I can't expect it. In addition, in principle, the push-pull device and the fork must be operated at the same time to carry out the cargo handling work, resulting in poor work efficiency. Even if a special fork such as a roller fork with a downwardly inclined top surface is used, multiple steps are required. It is difficult to load and carry the cargo of the second and higher stages.

The present invention provides a unique cargo handling pallet that drastically solves the problems of conventional cargo handling pallets and improves both loading efficiency and work efficiency.

In short, the cargo handling pallet according to the present invention is a cargo handling pallet that is assumed to be used in a cargo handling operation performed on a forklift truck having a fork having a tip portion whose upper surface is inclined downward toward the tip. It has a configuration.

That is, it has a rectangular plate shape, and includes a placement surface portion on which cargo is placed, and a grounding surface portion in parallel with the placement surface portion and in contact with the pallet support surface, and at least one of the four edges of the placement surface portion is provided. It is formed as a bowl-shaped edge over the entire length or a partial length, and the pallet support surface is exposed below the bowl-shaped edge and defines a recess into which the tip of the fork is inserted, while the fork is formed inside A structure having no insertion space, wherein the flange-shaped edge portion has a sliding contact portion in sliding contact with an upper surface of a tip end portion of the fork on a lower surface of the flange-shaped edge portion, and the sliding contact portion and the distal end portion of the fork The saddle-shaped edge is lifted by sliding contact with the upper surface, and a fork insertion gap can appear between the ground contact surface and the pallet support surface that is in contact with the ground contact surface.

Preferably, the bottom surface of the bowl-shaped edge portion is inclined downward toward the inside of the pallet, so as to achieve smooth sliding contact with the top surface of the fork distal end portion, and on the base end (inner end) side of the bowl-shaped edge portion. Reinforce.

More preferably, the lower surface of the bowl-shaped edge portion is formed of an inclined convex arc-shaped surface or a plurality of steps or a bent surface, and the sliding contact portion that reliably slides on the upper surface of the fork tip is provided. Moreover, it is set as the structure which consists of the plane which inclined the said bowl-shaped edge part, and the visibility of the pallet support surface through the said recessed part is improved although it is a simple structure.

Further, the lower end of the inclined bottom surface of the bowl-shaped edge is connected to the grounding surface section, and the recess is formed while improving the strength of the bowl-shaped edge.

Alternatively, the lower end of the inclined lower surface of the bowl-shaped edge is set higher than the ground contact surface, and a raised wall is formed to connect the lower end of the lower surface of the saddle-shaped edge and the ground contact surface. The depth can be made as long as possible.

Or, the lower end of the inclined lower surface of the bowl-shaped edge is set higher than the ground contact surface, and a groove that extends the depth of the recess is formed in the ground contact surface continuously from the lower end of the lower surface of the saddle-shaped edge. The depth of the recess is further extended at the groove and the lateral displacement of the inserted fork is prevented.

Preferably, a plurality of penetrating or bottomed lightening portions are provided on the mounting surface portion and the grounding surface portion to reduce the weight. In addition, it supports nesting when not in use.

According to the cargo handling pallet according to the present invention, it is not necessary to provide a space for inserting and removing the entire fork such as a conventional fork pocket inside the pallet, and only a recess for inserting the tip of the fork under the edge of the mounting surface portion. Since it only has to be formed, the pallet thickness can be made as thin as possible.

In addition, the placement surface portion can be effectively used without generating a useless space where cargo cannot be placed around the placement surface portion.

Also, the fork can be smoothly inserted between the grounding surface portion and the pallet support surface by the cooperation of the hook-shaped edge portion of the mounting surface portion and the concave portion defined below the hook-shaped edge portion. Can be used for cargo handling work.

Furthermore, the cargo handling operation can be performed while visually recognizing the pallet support surface in the concave portion, and in particular, the cargo handling operation can be efficiently performed on the second and higher cargos stacked in multiple stages.

Therefore, according to the pallet for cargo handling according to the present invention, it is possible to improve the loading efficiency of cargo in containers and warehouses and the work efficiency of the cargo handling work at a high level.

The perspective view which shows the pallet for cargo handling which concerns on Example 1 from the mounting surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 1 from the contact-surface part side. The perspective view of a fork. The expansion explanatory view of a fork tip part. Expansive explanatory drawing which shows the state which the sliding contact part of the bowl-shaped edge part lower surface and the fork tip part upper surface contact | connected. Explanatory explanatory drawing which shows the state which the sliding contact part of the hook-shaped edge part lower surface and the fork front-end | tip part upper surface slidably contacted, and the hook-shaped edge part was lifted. Explanatory explanatory drawing which shows the bowl-shaped edge part which has the lower surface which consists of an inclined convex arc surface. The expanded explanatory view which shows the bowl-shaped edge part which has the lower surface which consists of an inclined bending surface. The expanded explanatory view which shows the bowl-shaped edge which has the lower surface which consists of a several level | step difference. The expanded explanatory view which shows the bowl-shaped edge which has the lower surface which does not incline. Explanatory explanatory drawing which shows the example which set the lower end of the lower surface of the bowl-shaped edge part higher than the grounding surface. FIG. 7B is an enlarged explanatory view showing another example of the example in FIG. 7A. The perspective view which shows the state which stacked | stacked the cargo several times. The perspective view which shows the pallet for cargo handling which concerns on Example 2 from the mounting surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 2 from the contact-surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 3 from the mounting surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 3 from the contact-surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 4 from the mounting surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 4 from the contact-surface part side. The enlarged explanatory view which shows the example which set the lower end of the lower surface of the bowl-shaped edge part higher than the grounding surface, and formed the groove | channel in the grounding surface part. The perspective view which shows the pallet for cargo handling which concerns on the illustration of FIG. 12A from the contact-surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 5 from the mounting surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 5 from the contact-surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 6 from the mounting surface part side. The perspective view which shows the pallet for cargo handling which concerns on Example 6 from the contact-surface part side. Sectional drawing of the pallet for cargo handling concerning Example 6. FIG.

Hereinafter, an optimum embodiment of a cargo handling pallet according to the present invention will be described with reference to FIGS.

<Basic configuration>
The pallet for cargo handling according to the present invention has a rectangular plate shape as shown in FIGS. 1A and B, FIGS. 9A and B, FIGS. 10A and B, FIGS. And a grounding surface portion 2 in parallel with the placement surface portion 1 and in contact with a pallet support surface such as a ground surface, a floor surface, or a top surface of a lower cargo, and the four of the placement surface portions 1 described above. At least one of the two edge portions (side portions) 3 is formed as a hook-like edge portion 3 'over the entire length or a partial length, and a recess 4 is defined below the hook-like edge portion 3'.

That is, the concave portion 4 below the bowl-shaped edge portion 3 ′ is defined by omitting the protruding corner angles of the side surface portion 5 and the ground surface portion 2. Accordingly, the recess 4 is a space that opens to the side and downward, and exposes the pallet support surface, and is inserted with the tip 12 of the fork 11 described later.

Further, the edge 3 that is not formed as the bowl-shaped edge 3 ′ in the placement surface 1 is connected to the grounding surface 2 via the side surface 5.

The cargo handling pallet according to the present invention can be formed of a material used for known cargo handling pallets such as wood, metal, synthetic resin, and paper. Further, since only the concave portion 4 into which the fork tip is inserted is formed below the edge portion 3 'of the placement surface portion 1, the pallet thickness can be made as thin as possible. For example, depending on the material, the pallet thickness can be about 5 mm to 70 mm. Preferably, the pallet thickness is 30 mm in relation to strength.

Further, the cargo handling pallet according to the present invention can effectively use the placement surface portion 1 without generating an unnecessary space around which the cargo cannot be placed.

Therefore, the loading efficiency of cargo in containers and warehouses can be greatly improved.

In each embodiment to be described later, an example in which all four edges 3 of the mounting surface portion 1 are formed as bowl-shaped edges 3 'over the entire length or partial length will be described. The invention includes all configurations in which a bowl-shaped edge 3 ′ is formed over the entire length or a partial length of at least one edge 3 of the mounting surface 1 and a recess 4 is defined therebelow.

<Prerequisite configuration>
Here, the premise structure of the cargo handling pallet which concerns on this invention is demonstrated. The cargo handling pallet according to the present invention is premised on use in cargo handling work performed using a forklift truck provided with a fork 11 as shown in FIGS. In other words, it is assumed that the fork 11 whose upper surface 12a of the tip 12 is inclined downward toward the tip 12b is inserted and removed.

As the fork 11 having the above-described structure, the fork 11 with a roller that incorporates the roller conveyor 13 is preferably used as illustrated in FIGS. 2 and 3. The roller conveyor 13 built in the fork 11 with rollers is composed of a plurality of upper rollers 13A and a plurality of lower rollers 13B, and both the

rollers

13A and 13B rotate in the opposite directions to each other on the pallet support surface G. The movement of the fork 11 and the loading and unloading of pallets and cargo on the fork 11 are complemented.

For example, in FIG. 3, when the fork 11 is moved in the left direction (the fork 11 is advanced) with the lower roller 13B in contact with the pallet support surface G, the lower roller 13B rotates counterclockwise and the upper roller 13A Turn right. Therefore, the fork 11 can smoothly advance on the pallet support surface G by the rotation of the lower roller 13B, and the pallet, cargo and the like can be guided onto the fork 11 by the rotation of the upper roller 13A.

Conversely, when the fork 11 is moved in the right direction (the fork 11 is moved backward) while the lower roller 13B is in contact with the pallet support surface G, the lower roller 13B rotates clockwise and the upper roller 13A rotates counterclockwise. Therefore, the fork 11 can smoothly retreat on the pallet support surface G by the rotation of the lower roller 13B, and the pallet, cargo, etc. can be guided from the fork 11 onto the pallet support surface G by the rotation of the upper roller 13A.

<Example 1>
1A and 1B show a cargo handling pallet according to a first embodiment of the present invention. In this embodiment, the basic structure described above is provided, and in particular, the four edge portions 3 of the mounting surface portion 1 are formed as hook-shaped edge portions 3 'over the entire length.

<< Configuration of bowl-shaped edge and recess >>
Here, the configuration of the bowl-shaped edge 3 ′ of the mounting surface section 1 and the recess 4 defined below the bowl-shaped edge 3 ′ will be described in detail.

As shown in FIGS. 1A and 1B and FIG. 4A, the bowl-shaped edge 3 'has a lower surface 3'a formed of a plane inclined downward toward the inner side of the pallet (center side of the pallet). The fork 11 has a sliding contact portion 3'c that is in sliding contact with the top surface 12a of the tip portion. Further, the lower end 3 ′ b of the lower surface 3 ′ a is connected to the ground plane 2. In the present invention, the slidable contact portion 3 ′ c indicates a region or a portion of the flange-like edge lower surface 3 ′ a that is in slidable contact with the fork tip end upper surface 12 a.

By adopting a configuration in which the flange-like edge lower surface 3'a is inclined as described above, smooth sliding contact with the fork distal end upper surface 12a is achieved and the proximal end (inner end) side of the flange-like edge 3 'is also provided. By reinforcing the lower end 3'b of the lower surface 3'a of the bowl-shaped edge, the strength of the bowl-shaped edge 3 'is improved by connecting the lower end 3'b to the ground surface 2.

Further, in the case where the flange-like edge lower surface 3'a is constituted by the inclined plane as described above, the flange-like edge lower surface 3'a and the fork tip upper surface 12a are inclined in the same direction. Become. Therefore, in order to surely form the sliding contact portion 3'c in sliding contact with the top surface 12a of the fork tip on the bottom surface 3'a of the flange-shaped edge portion, the inclination angle α of the top surface 12a of the fork tip portion and the bottom surface 3'a of the flange shape edge portion. Is set to a relationship of α> β.

Further, the recess 4 is a recess space having the bowl-shaped edge lower surface 3'a as a ceiling surface and is defined below the bowl-shaped edge 3 '. The depth L1 of the recess 4 is longer than the fork insertion length L2 when the fork tip top surface 12a first contacts the sliding contact portion 3'c of the bowl-shaped edge bottom surface 3'a, that is, L1> L2 is set. To do. In other words, the fork insertion length L2 is determined by the height of the lowermost end of the sliding contact portion 3'c, and the depth L1 of the recess 4 is set longer than this L2.

Thus, in the cargo handling pallet according to the present invention, the front end portion 12 of the fork 11 can be easily connected to the grounding surface portion 2 by the cooperation of the bowl-shaped edge portion 3 'and the concave portion 4 having the above-described configuration. And the pallet support surface G, and finally the entire fork 11 is inserted.

That is, as shown in FIG. 4A, first, the fork 11 is advanced until the top surface 12a of the tip end comes into contact with the sliding contact portion 3'c of the bottom surface 3'a of the bowl-shaped edge portion. This can be performed while visually recognizing the support surface G. For example, as shown in FIG. 8, even when the pallet support surface G is the top surface of the lower cargo C, it can be performed while visually recognizing effectively.

Further, since the lower surface 3'a of the bowl-shaped edge 3 'is inclined toward the inside of the pallet, the tip 12 of the fork 11 can be smoothly inserted into the recess 4 existing below the pallet, and the recess 4 Since the depth L1 is longer than the fork insertion length L2, the fork tip 12b does not unnecessarily collide with the pallet.

Next, as shown in FIG. 4B, when the fork 11 is further advanced, the sliding contact portion 3'c of the flange-shaped edge 3 'and the top surface 12a of the fork tip end slide, and the flange-shaped edge 3' is lifted. As a result, the fork insertion gap 14 can be exposed between the pallet support surfaces G that are in contact with the ground contact surface 2 and the ground contact surface 2, that is, covered by the ground contact surface 2. Therefore, the fork tip 12b can be further pushed forward without any collision, and the tip 12 of the fork 11 is easily inserted between the ground surface 2 and the pallet support surface G, and finally the entire fork 11 is inserted.

Further, if the fork 11 is a fork with a roller as described above, if the fork 11 is advanced until the ground contact surface portion 2 comes into contact with the upper roller 13A, the entire pallet is smoothly moved onto the fork 11 by the rotation of the upper roller 13A. Can lead.

Of course, when the fork 11 is pulled out from between the ground contact surface portion 2 and the pallet support surface G, the bowl-shaped edge portion 3 ′ follows a trajectory opposite to the insertion. If the fork 11 is a fork with a roller, the pallet can be effectively guided from the top of the fork 11 onto the pallet support surface G by the rotation of the upper roller 13A when the fork 11 is retracted. Can be removed.

Therefore, by the cooperation of the bowl-shaped edge 3 'and the recess 4, the cargo handling operation can be performed only with the fork 11 without using a complicated device such as a push-pull device, and the work efficiency is greatly improved. .

≪Other examples of bowl-shaped edges and recesses≫
So far, an example in which the lower surface 3'a of the bowl-shaped edge 3 'is inclined downward toward the inner side of the pallet has been described based on FIGS. 1A and B and FIGS. 4A and B. Thus, the bowl-shaped edge lower surface 3'a can be configured by other than the inclined plane.

For example, as shown in FIG. 5A, the bottom surface 3'a of the bowl-shaped edge portion can be formed of a convex arc-shaped surface inclined downward toward the inside of the pallet. Or as shown to FIG. 5B, it can be set as the structure which consists of a curved surface which inclined down the hook-shaped edge part lower surface 3'a toward the pallet inner side. According to the ridge-like edge lower surface 3'a according to these examples, the inwardly protruding portion of the recess 4 can be used as the sliding contact portion 3'c, and the sliding contact with which the fork tip portion upper surface 12a is reliably slidably contacted. It can be part 3'c.

Moreover, as shown to FIG. 6A, it can be set as the structure which consists of a some level | step difference which inclined down the bowl-shaped edge part lower surface 3'a toward the pallet inner side. Also in the case of the saddle-like edge lower surface 3'a according to this example, the inwardly protruding portion of the recess 4 can be used as the sliding contact portion 3'c, and the sliding contact portion that reliably slides on the fork tip upper surface 12a. 3'c. Further, although not specifically illustrated, as shown in FIG. 6A, after the front end (outer end) of the bowl-shaped edge portion 3 'is once cut off, the inclined plane or convex arc-shaped surface or bent as described above It is optional depending on the implementation to form the surfaces and to make these surfaces the bottom surface 3'a.

Further, as shown in FIG. 6B, the bowl-shaped edge lower surface 3′a can be a plane parallel to the placement surface portion 1 and the grounding surface portion 2 without being inclined. In this case, the tip (outer end) part of the flange-like edge lower surface 3'a becomes the sliding contact part 3'c.

Further, as shown in FIGS. 7A and 7B, the lower end 3'b of the inclined lower surface 3'a inclined as described above is set higher than the ground surface 2, and the lower lower surface 3'a of the vertical edge 3'a is set. It is set as the structure which formed the raising wall part 6 which connects the lower end 3'b and the grounding surface part 2, and can make the depth L1 of the recessed part 4 as long as possible. In the illustrated example, the bowl-shaped edge lower surface 3'a is shown as a convex arc-shaped surface, but may be a flat surface or a bent surface. Further, the raised wall portion 6 may be formed so as to extend vertically as shown in FIG. 7A, or may be formed so as to extend downwardly inclined toward the inside of the pallet as shown in FIG. 7B.

<Example 2>
9A and 9B show a cargo handling pallet according to a second embodiment of the present invention. In this embodiment, the basic structure described above is provided, and particularly, the four edge portions 3 of the mounting surface portion 1 are formed as hook-shaped edge portions 3 'over the partial length.

That is, in the present embodiment, as shown in the drawing, the edge portion 3 of the mounting surface portion 1 is formed as a bowl-shaped edge portion 3 'over a length other than both end portions. Therefore, both end portions of the edge portion 3 are connected to the ground surface portion 2 via the side surface portion 5 and can be stably disposed on the pallet support surface without omitting the four corners of the ground surface portion 2.

Further, the shape of the hook-shaped edge 3 ′ and the recess 4 in this embodiment and the mechanism related to the insertion / extraction of the fork 11 are the same as those of the first embodiment described above. The description in “Other Configurations” and “Other Examples of Wedge-shaped Edges and Recesses” is incorporated.

<Example 3>
10A and 10B show a cargo handling pallet according to a third embodiment of the present invention. In this embodiment, the basic structure described above is provided, and in particular, the four edge portions 3 of the mounting surface portion 1 are formed as hooked edge portions 3 'over a plurality of partial lengths.

That is, in the present embodiment, as shown in the drawing, a plurality of part lengths other than the central part of the edge part 3 of the mounting surface part 1 are formed as a bowl-like edge part 3 ′. In other words, the two hook-shaped edges 3 'are formed at intervals.

Therefore, in the present embodiment, the center portion of the edge portion 3 is connected to the ground surface portion 2 via the side surface portion 5, and the pallet support can be stably performed without omitting the center portion of the edge portion of the ground surface portion 2. Can be placed on the surface.

Also in this embodiment, the shape of the bowl-shaped edge 3 'and the recess 4 and the mechanism related to the insertion / extraction of the fork 11 are the same as those of the first embodiment described above. And “the configuration of the concave portion” and “other examples of the hook-shaped edge portion and the concave portion”.

<Example 4>
11A and 11B show a cargo handling pallet according to a fourth embodiment of the present invention. In the present embodiment, the basic configuration described above is provided, and the four edge portions 3 of the mounting surface portion 1 are formed as hook-shaped edge portions 3 'over a plurality of partial lengths, as in the third embodiment. And

This embodiment is different from the third embodiment in that it is formed as a bowl-shaped edge 3 'over a plurality of lengths other than both ends and the center of the edge 3 of the mounting surface section 1.

Therefore, in the present embodiment, both end portions and the central portion of the edge portion 3 are connected to the ground surface portion 2 via the side surface portion 5, and the four corners and the edge center of the ground surface portion 2 are not omitted. It can be stably placed on the pallet support surface.

Also in the present embodiment, the shape of the bowl-shaped edge 3 ′ and the recess 4 and the mechanism related to the insertion / extraction of the fork 11 are described in “Configuration of bowl-shaped edge and recess” and “Bridge-shaped edge” in the first embodiment. The description in “Other Examples of Recesses” is used, but in this embodiment, the flange-like edge 3 ′ and the recesses 4 as described below can be configured.

That is, as shown in FIGS. 12A and 12B, the lower end 3'b of the inclined flange-shaped lower surface 3'a is set higher than the ground surface 2 and the lower end 3 'of the flange-shaped lower surface 3'a is set. The groove 7 that extends the depth L1 of the concave portion 4 is formed in the ground surface portion 2 continuously to b, and the depth L1 of the concave portion 4 is further extended at the groove 7 and the lateral displacement of the inserted fork 11 is prevented. can do.

<Example 5>
13A and 13B show a cargo handling pallet according to Embodiment 5 of the present invention. In the present embodiment, the basic configuration described above is provided, and the arrangement configuration of the hook-shaped edge portion 3 'is the same as that of the fourth embodiment. Also in the present embodiment, the shape of the bowl-shaped edge 3 ′ and the recess 4 and the mechanism related to the insertion / extraction of the fork 11 are described in “Configuration of bowl-shaped edge and recess” and “Bridge-shaped edge” And the description of “other examples of recesses”. In the present invention, it is not disturbed that the arrangement configuration of the flange-shaped edge portion 3 ′ of the present embodiment is the same as that of the first to third embodiments.

The configuration which is a feature of the present embodiment is a configuration in which a plurality of through-thickening portions 8 are provided in the placement surface portion 1 and the ground surface portion 2. With this configuration, the weight of the entire cargo handling pallet can be reduced. In the example shown in the figure, the description has been given as the hollow portion 8 having a square hole shape, but the shape of the hollow portion 8 is not particularly limited in the present invention.

In producing a cargo handling pallet having a plurality of penetrating portions 8 as in this embodiment, a synthetic resin is produced using a known injection molding method.

<Example 6>
14A, 14B, and 15 show a cargo handling pallet according to Embodiment 6 of the present invention. In the present embodiment, the basic configuration described above is provided, and the arrangement configuration of the hook-shaped edge portion 3 'is the same as that in the first embodiment. Also in the present embodiment, the shape of the bowl-shaped edge 3 ′ and the recess 4 and the mechanism related to the insertion / extraction of the fork 11 are described in “Configuration of bowl-shaped edge and recess” and “Bridge-shaped edge” And the description of “other examples of recesses”. In the present invention, it is not prevented that the arrangement configuration of the flange-shaped edge portion 3 'of the present embodiment is the same as that of the second to fourth embodiments.

The configuration which is a feature of the present embodiment is a configuration in which a plurality of bottomed meat removal portions 9 are provided on the placement surface portion 1 and the grounding surface portion 2, thereby reducing the weight of the entire cargo handling pallet. It can also handle nesting when not in use.

The details of the lightening portion 9 will be described below. As shown in FIG. 14A, the mounting surface portion 1 is formed with a large number of mounting surface portion central hollowing portions 9a that are recessed in a rhombus shape at equal intervals. And arrange them vertically and horizontally. Preferably, as shown also in FIG. 15, a part of the placement surface portion central thinning portion 9 a is set as a stepped placement surface portion central thinning portion 9 ′ a so that half-nesting can be supported. On the other hand, as shown in FIG. 14B, the ground surface portion 2 is formed in the center region with a ground surface portion central hollow portion 9c that is depressed in a lattice shape corresponding to the adjacent interval of the placement surface central hollow portion 9a. To do.

In addition, a plurality of bowl-shaped edge cutout portions 9d that are recessed in a rectangular pyramid shape with the placement surface section 1 side as a vertex are formed at equal intervals in the area of the bowl-shaped edge lower surface 3'a. Therefore, the flange-like edge lower surface 3'a becomes a discontinuous surface, and the frictional force when slidingly contacting the fork tip end upper surface 12a can be reduced. On the other hand, on the upper surface of the bowl-shaped edge 3 ', a plurality of bowl-shaped edge portions 9b that are recessed into a shape corresponding to the bowl-shaped edge lower surface 3'a are formed.

In the present invention, the shape of the bottomed portion 9 is naturally not limited to the illustrated example. As long as weight reduction and nesting can both be achieved, the shape of the thinned portion 9 is not particularly limited.

Further, when manufacturing a cargo handling pallet having a plurality of bottomed portions 9 as in the present embodiment, a synthetic resin is manufactured using a known vacuum forming method or pressure forming method.

As described above, according to the pallet for cargo handling according to the present invention, it is possible to improve the loading efficiency of cargo in containers and warehouses and the work efficiency of the cargo handling work at a high level.

In the present invention, the placement surface portion 1, the grounding surface portion 2, and the collar-like edge lower surface 3'a do not exclude discontinuous surfaces due to recesses such as holes and grooves as long as each function can be ensured. .

DESCRIPTION OF SYMBOLS 1 ... Mounting surface part, 2 ... Grounding surface part, 3 ... Edge part of mounting surface part, 3 '... Gutter-like edge part, 3'a ... Gutter-like edge lower surface, 3'b ... Lower end of gutter-like edge lower surface, 3'c ... sliding contact part, 4 ... concave part, 5 ... side face part, 6 ... raised wall part, 7 ... groove part, 8 ... penetrating hollow part, 9 ... bottomed hollow part, 9a ... center of mounting surface part Meat removal part, 9'a ... Stepped part mounting surface part central part removal part, 9b ... bowl-shaped edge part meat removal part, 9c ... grounding surface part center meat removal part, 9d ... bowl-like edge part meat removal part, 11 ... Fork, 12 ... Fork tip, 12a ... Tip top, 12b ... Tip, 13 ... Roller conveyor, 13A ... Upper roller, 13B ... Lower roller, 14 ... Fork insertion gap, α ... Fork tip angle, β ... Inclination angle of bottom surface of bowl-shaped edge, G ... pallet support surface, L1 ... depth of recess, L2 ... insertion length of fork tip, C ... cargo.

Claims

A cargo handling pallet used for a cargo handling operation performed on a forklift truck having a fork having a top surface inclined downward toward the tip, having a rectangular plate shape, a placement surface portion on which cargo is placed, and the placement surface portion And at least one of the four edges of the placement surface part as a hook-like edge over its entire length or partial length, and below the hook-like edge. The pallet support surface is exposed and a recess into which the front end of the fork is inserted is defined, while the fork insertion space is not provided in the interior, and the hook-like edge is formed of the hook-like edge. The bottom surface has a sliding contact portion that is in sliding contact with the top surface of the front end of the fork, and the saddle-shaped edge is lifted by sliding contact between the sliding contact portion and the top surface of the front end of the fork. Pallet in contact with the face Handling pallet, characterized in that for revealing the fork insertion gap between the support surface.
The cargo handling pallet according to claim 1, wherein the bottom surface of the bowl-shaped edge is inclined downward toward the inside of the pallet.
The cargo handling pallet according to claim 2, wherein the bottom surface of the bowl-shaped edge is formed of an inclined plane.
The cargo handling pallet according to claim 2, wherein the bottom surface of the bowl-shaped edge is formed of an inclined convex arc-shaped surface or a plurality of steps or bent surfaces.
The pallet for cargo handling according to any one of claims 2 to 4, wherein a lower end of the inclined lower surface of the bowl-shaped edge portion is continuous with the ground contact surface portion.
The lower end of the lower surface of the inclined ridge-like edge is set higher than the ground contact surface, and a raised wall portion that connects the lower end of the lower surface of the ridge-like edge and the ground contact surface is formed. The pallet for cargo handling according to any one of claims 4 to 5.
The lower end of the inclined bottom surface of the hook-shaped edge is set higher than the grounding surface portion, and the groove portion that extends the depth of the recess is formed on the grounding surface portion continuously to the lower end of the bottom surface of the hook-shaped edge. The pallet for cargo handling according to any one of claims 2 to 4, wherein the pallet for cargo handling is characterized.
The pallet for cargo handling according to any one of claims 1 to 7, wherein a plurality of penetrating or bottomed thinning portions are provided on the placing surface portion and the grounding surface portion.