JP2003226330A - Transport pallet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To lower nesting height of a transport pallet capable of being piled up and nested. <P>SOLUTION: A concave supporting surface 17 for nesting is arranged in the right and left outside of the front edge portion of a load supporting table portion 2 equipped with a fork insertion space 19 in the down side and supported portions 21a and 21b for nesting are arranged in the down side of the rear edge portion of upper pallet supporting rail materials 5a and 5b supported by struts 3a to 4b standing on the four corners of the load supporting table portion 2. When the pallet is nested, the front edge sides of the supported portions 6a and 6b for piling up of the upper pallet 1 are supported by the concave supporting surface 17 for nesting and the supported portions 21a and 21b for nesting of the upper pallet 1 are supported by the supporting rail materials 5a and 5b for nesting of the upper pallet 1 while the supported portions 6a and 6b for piling up of the upper pallet 1 drop to the down side from the upper surface of the load supporting portion 2 of the down pallet 1. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer pallet capable of stacking and nesting.

[0002]

2. Description of the Related Art As a stackable transfer pallet, a load supporting base portion, support columns standing upright at four corners of the load supporting base portion, and a pair of left and right front and rear depth directions supported via the support columns. An upper pallet supporting rail member and a pair of left and right stacking members arranged below the left and right sides of the load supporting base and fitted to the upper pallet supporting rail member of the lower pallet during stacking. A device including a supported portion is known.

In order to enable nesting of the upper pallet inside the lower pallet in a state in which the respective columns of the upper pallet are adjacent to the front of the respective columns of the lower pallet, the pallet having the above structure is The distance between the pair of left and right upper pallet supporting rails, the distance between the lower pair of left and right stacked stacked supported portions, the distance between the rear left and right pair of columns, and the left and right lateral width of the load supporting base, respectively. The space between the pair of columns on the left and right sides of the front side is narrower, and the load supporting base of the upper pallet is inserted from the front between the load supporting base of the lower pallet and the upper pallet supporting rail material. The upper pallet can be supported by the lower pallet in a state where the pallet supporting rail member is floated on the upper pallet supporting rail member of the lower pallet.

However, the transfer pallet must be one that can be transferred by a forklift, and in order to secure a fork insertion space under the load support base when it is placed on the floor, the lower end of the column or the stacking pallet is used. The grounding part composed of supported parts and the like projects below the load supporting base part, and even if the load supporting base part itself is thin, the grounding part (fork insertion space)
The substantial thickness of the whole of the load supporting base including the above is relatively large.

[0005]

In the conventional transfer pallet of this type, the entire load supporting base including the grounding portion (fork insertion space) overlaps the load supporting base of the lower pallet during nesting. Since the space between the upper and lower pallets at the time of nesting cannot be made smaller than the total thickness of the load supporting base including the grounding part (fork insertion space), the number of pallets that can be safely nested is small. It was suppressed. As a result, the truck transportation efficiency in the nesting state and the storage efficiency in the warehouse have been kept low.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a carrying pallet capable of solving the above-mentioned conventional problems, and the means will be referred to by the reference numerals of the embodiments described later. In addition, the load support base 2 having the fork insertion space 19 on the lower side, and the pair of front left and right columns 3a and 3b standing upright at the four corners of the load support base 2 are paired with the rear left and right pairs. Pillars 3a located outside the pillars 4a and 4b
4b, and a pair of left and right supported portions 6a, 6b for stacking, which are arranged outside and below the left and right sides of the load support base 2.
And a pair of left and right upper pallet supporting rail members 5a and 5b supported by the columns 3a to 4b so as to be located right above the pair of left and right stacked supported portions 6a and 6b. Nesting recessed support surfaces 17 are provided on the left and right outer sides of the front end of the platform portion 2, and nesting supported parts 21a and 21b are provided below the rear ends of the upper pallet supporting rail members 5a and 5b. Lower pallet 1D
When nesting the upper pallet 1U inside the lower pallet 1D in a state where the respective struts 3a-4b of the upper pallet 1U are adjacent to the front sides of the respective struts 3a-4b, the pair of left and right stacked support of the upper pallet 1U is supported. The front end sides of the pair of left and right stacked supported portions 6a, 6b of the upper pallet 1U are recessed for nesting with the portions 6a, 6b falling below the upper surface of the load support base 2 of the lower pallet 1D. The nesting-supported portions 21a and 21b of the upper pallet 1U are supported by the supporting surface 17 and the lower pallet 1D.
It is configured to be supported by the upper pallet supporting rail members 5a and 5b.

In carrying out the present invention having the above-described structure, the pair of left and right upper pallet supporting rail members 5a and 5b are provided.
Supports the front end portion on brackets 11a and 11b that are continuously provided inward from the upper ends of the pair of left and right front columns 3a and 3b, and is installed between the upper ends of the pair of left and right rear columns 4a and 4b. Supports the rear end portions on the left and right end portions of the connecting member 12 projecting outward from the columns 4a and 4b, and the nesting supported portions 21a and 21b are formed by the left and right end portions of the connecting member 12. Can be done.

The pair of left and right supported parts 6 for stacking are also provided.
The a and 6b can be configured by rail members 14a and 14b that are continuous between the front and rear ends of the load supporting base 2.

Further, the left and right corners of the front end of the load support base 2 and the lower ends of the pair of front left and right columns 3a, 3b are connected by separate connecting members 10a, 10b, and the connecting members 10a, 1 are connected.
It is possible to fix the front end portions of the stacked supported portions 6a, 6b to the lower side of 0b and to form the nesting concave supporting surface 17 on the upper side of the connecting members 10a, 10b.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment, which is one of the preferred embodiments of the present invention, will be described below with reference to the attached FIGS. 1 to 8. As shown in FIG.
Is for supporting the load support base 2, columns 3a to 4b standing upright at the four corners of the load support base 2, and a pair of left and right upper pallet supports in the front-rear depth direction supported via these columns 3a to 4b. The rail members 5a and 5b and a pair of left and right members which are disposed below the left and right sides of the load support base 2 and are fitted to the upper pallet supporting rail members 5a and 5b of the lower pallet during stacking. The stacking supported parts 6a and 6b are provided.

More specifically, the load supporting base 2 includes a pair of front and rear horizontal frames 7a and 7b, which are parallel to each other, and both horizontal frames 7a and 7a.
A pair of left and right vertical frames 8a that are erected between 7b,
A rectangular peripheral frame is constituted by 8b, and a crosspiece 9 that appropriately forms a load supporting surface also functions as a reinforcing member inside the frame. Each of the horizontal frames 7a and 7b, the vertical frames 8a and 8b, and the crosspiece 9 is made of one square pipe material or various shaped steels. Of course, a suitable panel such as a plate or punching metal can be laid on the upper surface if necessary.

The pair of left and right front columns 3a and 3b is a front horizontal frame 7 extending outward from the vertical frames 8a and 8b of the load supporting base 2.
A bracket 1 which is connected to both ends of a through connecting members 10a and 10b, respectively, and which extends to the inside by a required length at the upper ends of the pair of front left and right columns 3a and 3b.
1a and 11b are placed and fixed. The pair of left and right rear columns 4a, 4b are erected adjacent to both end surfaces of the rear lateral frame 7b of the load support base 2, and the pair of left and right rear columns 4a, 4b.
A connecting member 12 is placed and fixed between the upper ends of b.

A pair of left and right upper pallet supporting rail members 5
Reference numerals a and 5b respectively denote angle steels arranged in parallel with the vertical frames 8a and 8b of the load supporting base portion 2 in a direction in which the projecting angle is directly above, and the front ends thereof are the brackets 11a and 11b.
It is mounted and fixed at a position inside the upper columns 3a, 3b, and its rear end is located on both ends of the connecting member 12 that project outward from the columns 4a, 4b, that is, at a position outside the columns 4a, 4b. Placed and fixed. At the rear end of each of the upper pallet supporting rail members 5a and 5b, as shown in FIGS. 2, 3 and 7, a retaining plate 13 that covers the entire chevron end face of the connecting member 12 is provided. It is fixed to the rear side.

A pair of left and right supported parts for stacking 6a, 6b
Is a rail material 14a, 14 using angle steel, respectively.
and is arranged in parallel with the vertical frames 8a and 8b of the load supporting base 2 so that the projecting corners thereof are located directly below the upper pallet supporting rail members 5a and 5b with the projected corners being located directly above. As shown in FIGS. 1B and 6, the front ends of the front support frame 2 and the front side frame 7a of the load support base 2 are connected to the front support column 3a.
It is fitted and fixed flush with the lower side of the connecting members 10a and 10b for connecting the a and 3b.

As shown in FIG. 6, the connecting members 10a and 10b are formed by bending one iron plate into an inverted U-shape and forming both side plates 15 thereof.
A pillar holding portion 16a and a front side horizontal frame holding portion 16b are formed on both sides of a and 15b, and a mountain-shaped notch in which the front ends of the rail members 14a and 14b fit flush with the lower sides of both side plates 15a and 15b. 16c is provided, and both side plates 15a,
The upper plate 15c connecting 15b is the load support base 2 (horizontal frame 7a).
So as to be lower than the upper surface of the column by a predetermined dimension (about the thickness of the load supporting base 2) between the column supporting portions 16a, the front column 3a,
The lower end portion of 3b is fitted and fixed, and the front lateral frame holding portion 1
Both ends of the front side horizontal frame 7a of the load support base 2 are fitted and fixed between the 6b, and the front ends of the rail members 14a and 14b are fitted and fixed to the mountain-shaped notch 16c. With this configuration, the pair of left and right front columns 3a and 3b on the left and right outer sides of the front end of the load support base 2
Inside, the nesting support surface 17 (15c) for nesting that is one step lower than the upper surface of the load support base 2 is formed. Of course, the method of forming the recessed supporting surface 17 for nesting is not limited to that of this embodiment, and for example, both ends of the front lateral frame 7a of the load supporting base 2 are bent downward in a stepwise manner, It is also possible to configure the recessed support surface 17 for nesting.

As shown in FIGS. 3 and 7, the rear ends of the rail members 14a and 14b forming the pair of left and right stacked supported portions 6a and 6b are laterally outside the pair of left and right rear columns 4a and 4b. A downwardly extending triangular bracket 18 fixed to the side surface
It is fitted and fixed flush with the lower side of a, 18b. The triangular brackets 18a and 18b can also be constructed by bending one iron plate so that the portion corresponding to the hypotenuse of the triangle becomes a folded wall portion.

With the above structure, the load support base 2 has the lower ends of the pair of front left and right columns 3a and 3b which are landed on the floor when placed on the floor.
Connecting members 10a, 10b, a pair of left and right supported portions for stacking 6a, 6b (rail members 14a, 14b), lower ends of a pair of rear left and right columns 4a, 4b, and brackets 18a, 18
By b, the load support base 2 is supported at a constant height above the floor so that a fork insertion space 19 is formed below the load support base 2. The forks can be inserted into the fork insertion space 19 from the front side with the front side horizontal frame 7a of the load support base 2 or from the back side with the rear side horizontal frame 7b. The vertical space between the supported portions 6a, 6b (rail members 14a, 14b) and the load supporting base 2 is set to a size allowing fork insertion, so that the vertical frame 8a of the load supporting base 2 and the rails Using the space between the material 14a or between the vertical frame 8b and the rail material 14b, the load supporting base 2
It is also possible to perform from the left and right lateral directions.

In the illustrated embodiment, the lengthwise central positions of the pair of left and right stacked supported portions 6a, 6b (rail members 14a, 14b) and the vertical frames 8a, 8b of the load supporting base portion 2 are defined. Although the reinforcing connecting member 20 is installed between them, it may be omitted. Further, the landing site of the pallet 1 is not limited to the above configuration, and for example, a pair of right and left stacked supported portions 6a, 6b (rail members 14a, 14b), connecting members 10a, 10b, brackets. 18a, 18b and the like may be configured so that the load does not substantially act when placed on the floor, and the load may be received only by the lower ends of the four columns 3a to 4b.

The transport pallets 1 having the above construction can be stacked in layers as shown by phantom lines in FIG. That is, with respect to the lower pallet 1D placed on the floor or the like, the upper pallet 1U is placed on the left and right sides of the load supporting base 2 and the supported portions for stacking 6a, 6b (rail members 14a, 14b) on the lower side. Can be stacked so as to fit on the pair of left and right upper pallet supporting rail members 5a and 5b of the lower pallet 1D. At this time, the upper pallet 1U is operated to slide backward with respect to the lower pallet 1D, and the lower pallet 1U
The stacking supported parts 6a, 6b (rail members 14a, 14) on the upper pallet 1U side are attached to the retaining plate 13 arranged at the rear ends of the upper pallet supporting rail members 5a, 5b on the D side.
b) By contacting the rear end of the lower pallet 1D
The upper pallet 1U can be positioned with respect to. Even with three or more pallets 1, the upper pallet 1U may be sequentially stacked on the lower pallet 1D as described above.

When the transport pallet 1 is transported by a forklift, as described above, if the fork is inserted into the fork insertion space 19 below the load supporting base 2 and the load supporting base 2 is lifted. Well, in this case, it is possible that the fork slips off the load support base 2 horizontally.
This can be prevented by the connecting members 10a, 10b and the lower ends of the rear columns 4a, 4b.

The carrying pallet 1 having the above structure can be nested as shown in FIGS. 1B and 2 when it is not used for carrying a load, such as when it is transported in an empty state or stored. That is, as shown in FIG. 2, the above-mentioned transport pallet 1 projects laterally outward from the maximum width on the rear end side of the load support base 2, that is, the lower ends of the pair of rear left and right columns 4a and 4b. Brackets 18a, 18b (stacked supported parts 6a, 6
The width d1 between the outer ends of the rail members 14a, 14b) of b is slightly smaller than the distance D1 between the pair of front left and right columns 3a, 3b, and the pair of front left and right columns 3a, 3 shown in FIG.
The width d2 between the outer surfaces of the pair of left and right rear columns 4a and 4b shown in FIG. 2 is configured to be slightly smaller than the distance D2 between the upper end brackets 11a and 11b (upper pallet supporting rail members 5a and 5b) of b. ing.

Therefore, as shown in FIGS. 1B and 2, the upper pallet 1U is provided for the lower pallet 1D placed on the floor or the like, and the columns 3a to 4b of the upper pallet 1U are the columns 3a to 3d of the lower pallet 1D. 4b, which is adjacent to the front side of 4b and is fitted with a combination of a downward movement operation and a backward movement operation so that the load support base portion 2 of the lower pallet 1D overlaps the load support base portion 2 of the lower pallet 1D. Can be done. Finally, the front end portions (positions immediately after the connecting members 10a, 10b) of the pair of right and left stacked supported portions 6a, 6b (rail members 14a, 14b) of the upper pallet 1U are paired with the left and right pairs of the lower pallet 1D. Recessed support surface 17 for nesting formed on the connecting members 10a, 10b (connecting members 10a, 10b
Supported by the upper plate 15c) of the upper pallet 1
A pair of right and left upper pallet supporting rail members 5a, 5b of U
A pair of left and right upper pallet supporting rail members 5 of the lower pallet 1D are provided on the lower side of the rear end, that is, both ends of the connecting member 12.
Nesting is completed by supporting at the rear ends of a and 5b.

A plurality of pallets 1 can be nested as described above. At the time of nesting, the upper pallet 1U supported by the rear ends of the upper pallet supporting rail members 5a and 5b of the lower pallet 1D. The nesting supported parts 21a and 21b of the upper pallet supporting rail members 5a and 5b are formed below the rear end parts of the upper pallet supporting rail members 5a and 5b, that is, at both ends of the connecting member 12. In this case,
Rail material 5a for supporting the upper pallet of the lower pallet 1D,
Although both ends of the connecting member 12 of the upper pallet 1U may be directly abutted and placed on the rear end of the nest 5b, as shown in FIGS.
Round bars or the like 22 are attached below both ends of the connecting member 12 to be 1a and 21b in parallel with the length direction of the connecting member 12, and these round bars and the like 22 support the upper pallet of the lower pallet 1D. The upper pallet 1U for nesting is configured by abutting on the rail members 5a and 5b.
It is possible to easily slide the upper pallet 1U rearward in a state in which the nesting supported parts 21a, 21b of 1 are placed on the upper pallet supporting rail members 5a, 5b of the lower pallet 1D.

A pair of left and right supported portions 6a, 6 for stacking are provided.
b is a rail material 14 continuous between the front and rear ends of the pallet 1.
Although it is configured by a and 14b, it is divided into a pair of front left and right stacked supported portions supported by the connecting members 10a and 10b and a rear left and right pair stacked supported portions supported by the brackets 18a and 18b. It may be configured with. In this case, it is easy to insert the forks into the fork insertion space 19 on the lower side of the load supporting base 2 from the left and right lateral directions by utilizing the space between the stacked supported parts divided into the front and the rear.

The positions of the pair of rear left and right columns 4a and 4b with respect to the load support base 2 may be on the rear sides of both the left and right rear corners of the load support base 2, or the load support base 2 It may be a position that is inside the rear left and right corners. That is, it is not necessary that the left and right sides of the load support base 2 (outer side surfaces of the vertical frames 8a, 8b) are inside the pair of rear left and right columns 4a, 4b.

[0026]

The carrying pallet of the present invention can be implemented and used as described above. According to the carrying pallet of the present invention, a pair of left and right upper pallet supporting rail members are provided. By using a pair of left and right supported parts for stacking, it is possible to stack in the same manner as a conventional pallet of this type, and at the front side of each pillar of the lower pallet as in the case of a conventional pallet of this type. Although it is possible to nest the columns of the upper pallet adjacent to each other, in particular, according to the configuration of the present invention, the nesting concave support surface is provided on the left and right outside of the front end portion of the load support base, and the upper pallet is formed. A nesting supported part is provided below the rear end of the supporting rail material, and when nesting the upper pallet to the lower pallet, the pair of right and left stacked stacking supported parts of the upper pallet becomes the lower part. Of the upper pallet, the front end sides of the pair of left and right stacked supported portions of the upper pallet being supported below the upper surface of the load supporting base portion of the tray are supported by the recessed supporting surface for nesting, and the nesting of the upper pallet is performed. Since the supported portion for supporting is configured to be supported by the rail material for supporting the upper pallet of the lower pallet, the interval between the upper and lower pallets during nesting, that is, the nesting height is It is smaller than the vertical dimension between the bottom of the floor and the fork insertion space on the side, and the number of pallets that can be safely nested can be increased. That is, it is possible to improve nesting efficiency and reduce the transportation cost of empty pallets.

According to the second aspect of the present invention, the upper pallet supporting rail is a connecting member for supporting the rear ends of the pair of left and right upper pallet supporting rail members on the pair of rear left and right supporting columns. A necessary supported portion for nesting can be formed below the rear end of the material, and the pair of left and right rear columns can be connected to each other by the connecting member to increase the strength of the entire pallet.

According to the third aspect of the present invention, each of the pair of left and right supported portions for stacking can be formed of one rail member, which not only simplifies the structure but also makes it possible to form a pallet. It also leads to an increase in overall strength.

Further, according to the structure of claim 4, a connecting member necessary for connecting the front left and right corners of the load supporting base and the lower ends of the pair of front left and right columns is provided with a nesting recess. Can also be used as a member that forms the support surface,
The structure of the pallet as a whole can be simplified and the nesting support surface for nesting can be easily constructed.

[Brief description of drawings]

FIG. 1 is a perspective view of the entire pallet from the front side, and FIG. 1B is a partially cutaway side view when the pallet is nested.

FIG. 2 is a vertical sectional front view of a lower portion and a vertical sectional front view of an upper portion when nesting a pallet.

FIG. 3 is a partially cutaway end view on the back side of the pallet.

FIG. 4 is a partially cutaway end view on the front side showing the stacked state of the pallets, showing the upper pallet in phantom.

5 is a plan view of the left half of the pallet, and FIG. 5 is a cross-sectional plan view of the right half of the pallet.

FIG. 6 is a perspective view from the rear side of the front left corner of the load support base, and FIG. 6 is a perspective view of the connecting member.

FIG. 7 is a perspective view from the front side of the left rear corner of the load support base.

FIG. 8 is a perspective view from the lower side showing a rear end portion of the left upper pallet supporting rail member.

[Explanation of symbols]

1 Transport pallet 1D lower pallet 1U upper pallet 2 cargo support base 3a, 3b A pair of left and right front columns 4a, 4b a pair of left and right rear columns 5a, 5b A pair of left and right upper pallet supporting rail members 6a, 6b Left and right pair of supported parts for stacking 7a, 7b A pair of front and rear lateral frames 8a, 8b a pair of left and right vertical frames 10a, 10b connecting member 11a, 11b, 18a, 18b bracket 12 Connection member 14a, 14b Rail material (supported portion for stacking) 17 Recessed support surface for nesting 18a, 18b bracket 19 Fork insertion space 21a, 21b Supported parts for nesting

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Claims (4)

[Claims] 1. A load support base portion having a fork insertion space on the lower side, and a pair of front left and right columns that are erected at four corners of the load support platform and are located outside the pair of rear left and right columns. The column, a pair of left and right stacked supported portions disposed outside and below the left and right sides of the load supporting base, and positioned right above the pair of left and right stacked supported portions. And a pair of left and right upper pallet supporting rail members supported by the columns, and a nesting recessed supporting surface is provided on the left and right outer sides of the front end portion of the load supporting base and the rear of the upper pallet supporting rail member. When the upper pallet is nested inside the lower pallet with each pillar of the upper pallet adjacent to the front of each pillar of the lower pallet, the left and right sides of the upper pallet are supported. Pair of supported parts for stacking The front end sides of the pair of left and right stacked supported portions of the upper pallet are supported by the nesting concave supporting surface while the lower pallet is dropped below the upper surface of the load supporting base portion of the upper pallet. A carrier pallet in which a nesting supported portion is supported by an upper pallet supporting rail member of a lower pallet. 2. The pair of left and right upper pallet supporting rail members are supported at their front ends by brackets arranged inwardly from the upper ends of the pair of left and right front columns, and the upper ends of the pair of left and right rear columns. The rear end is supported on the left and right ends of the connecting member that is bridged between the both ends and protrudes outward from the column, and the supported portion for nesting is formed by the left and right ends of the connecting member. The transport pallet according to claim 1. 3. The transfer pallet according to claim 1, wherein the pair of left and right supported members for stacking are constituted by rail members which are continuous between front and rear ends of the load supporting base. 4. The front left and right corners of the load supporting base and the lower ends of the pair of front left and right columns are connected by a connecting member different from each other, and the front end of the stacked supported portion is below the connecting member. The transport pallet according to claim 1, wherein the portion is fixed, and the nesting concave support surface is formed on the upper side of the connecting member.