JPH11278479A - Setup-type container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a setup-type container all formed of PP capable of making use of the advantage as packing material of a PP panel, simple in assembly, and capable of improving the strength after assembly. SOLUTION: A container is provided with a bottom plate 5a and four side plates 5b erected on four corners of a bottom plate 5a, lower corner members 2 installed on and fixed to four corners of the bottom plate 5a, longitudinal frames of approximately L-shape in plan view formed of longitudinal guide grooves 3a which are erected on and fixed to upper corner parts of the respective lower corner members 2, and pass the side end of the side plates 5b on each side, and upper corner members 1 of approximate L-shape in plan view formed of a groove part to which an upper end of the longitudinal frames 3 are fitted and fixed. The bottom plate 5a and the side plates 5b are of PP panel, the upper and lower corner members 1, 2 are PP injection molding, the longitudinal frame 3 is of PP extruded body formed of all PP.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight, high-strength assembled container.

[0002]

2. Description of the Related Art Conventional containers used for packing articles are mostly boxes made of mesh such as wire mesh, wooden or veneer boxes, or iron boxes. Most of the materials are assembled by combining members made of wood, metal, and plastic materials, and these are mounted on a pallet for use.

[0003] Containers using the above-mentioned composite materials are made rugged in order to secure the strength against the required load, and when disposing, recycling or recycling, it is troublesome to disassemble and at the same time disassemble. It requires advanced sorting at the time, and in particular, many plastics use inexpensive PVC resin, which may generate dioxin during incineration. Had a major challenge.

[0004] On the other hand, by using PP (polypropylene, hereinafter abbreviated as PP) as the resin instead of the above-mentioned PVC, generation of dioxin can be prevented. It is effective for recycling and resource saving.

[0005] However, in the case of integral molding by injection molding in order to be made of PP, a sufficient thickness must be ensured to obtain the required strength, and the amount of resin used is large and the weight becomes heavy. Further, the production cost is extremely high in terms of the material, so that it has not been practically used.

[0006]

By the way, the applicant of the present invention has previously developed a panel made of PP called trade name "Damplate". This panel is a hollow core consisting of a number of ribs and upper and lower liners, and is a lightweight and high-strength panel material.A container assembled from this hollow core panel in a box shape is lightweight, high-strength and inexpensive. It has the advantage of using less resin, and is a container material suitable as a measure against dioxin.

However, when assembling this hollow core panel as a container, the structure of the material is similar to that of a conventional paper cardboard box. Combination with other materials such as rivets or other reinforcing materials such as reinforced frames at the corners is unavoidable.In addition, despite the high strength of the panel itself, insufficient bonding strength at the corners etc. It was not possible to avoid a decrease in the overall strength of the steel.

[0008] The above-mentioned problems are the same in the case of a PP foam plate material having relatively low expansion ratio and rigidity.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to make it easy to assemble and to improve the strength after assembling, while enjoying the advantages of a PP panel as a packing material. The present invention provides an all-PP assembly type container.

[0010]

In order to achieve the above object, the present invention provides a bottom plate, four side plates standing upright on four rounds of the bottom plate, a lower corner material having four corners of the bottom plate installed and fixed, A vertical frame having a substantially L-shape in which a vertical guide groove formed on both sides thereof at the upper corner portion of the lower corner material and formed with a vertical guide groove for inserting the side end of the side plate, is fitted to the upper end of the vertical frame. An upper corner material having a substantially L-shaped planar shape having a groove to be fixed is provided, the bottom plate and the side plate are polypropylene panels, the upper and lower corner materials are polypropylene injection molded bodies, and the vertical frame is a polypropylene extrusion molding. It is characterized by being composed of a body.

Therefore, the assembling type container of the present invention can be assembled without any skill by assembling each part according to a predetermined assembling procedure. The material and the vertical frame can increase the bonding strength between the panels. Also, since all the members are made of PP,
There is no separation problem during recycling, and no dangerous dioxin is generated during incineration.

According to the present invention, the bottom plate is provided with a lower edge frame made of a polypropylene extruded molded body integrally fitted with the bottom plate and receiving the lower edge of the side plate. , And on the upper edge of the side plate,
It is provided with an upper reinforcing edge frame made of a polypropylene extruded molded body fitted thereto, and on both side edges of the side plate, provided with side reinforcing edge frames made of a polypropylene extruded molded body fitted thereto. Thereby, the edge of the hollow core panel can be sufficiently reinforced.

Further, according to the present invention, a polypropylene pallet is integrally connected to the bottom of the container, a plurality of girder or block-shaped raising materials are integrally connected to the bottom of the container, At the bottom, the casters are mounted through mounting holes, so that they can be adapted to each application.

Further, in the present invention, at least one of the side plates can be dropped in and removed along a vertical guide groove of the vertical frame, so that articles can be taken out and stored from the side. I can do it.

Still further, according to the present invention, by adopting a configuration in which opposed vertical frames are supported by the lower corner member via a hinge shaft so as to be tiltable inwardly to each other, the folding frames are folded when not in use. It can be stored, making it suitable for collecting and transporting containers. Further, by using a polypropylene resin rivet or clip as a connecting means of the lower corner material to the bottom plate and a connecting means of the upper corner material to the vertical frame, all members constituting the container including the connecting means are made of PP. Separation is not required.

[0016]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG.
2 (a) to 2 (c) and FIGS. 2 (a) to 2 (d) show respective components of the assembling type container according to the present invention, and FIG. 3 is a perspective view of a main part showing an assembling relationship of respective members.

In the figure, the prefabricated container of the present invention comprises:
An upper corner member 1, a lower corner member 2, a vertical frame 3 connected between these corner members 1 and 2, a polypropylene panel 5 constituting a bottom plate 5a and a side plate 5b,
A lateral frame 6 and a side edge frame 7 as reinforcing frame edges to be fitted to an upper edge and a side edge of the side plate 5b;
and a modified L-shaped frame 8 as a frame edge, which fits around the four sides of a and fits the lower edge of the side plate 5b.

Of the above members, the corner materials 1 and 2 are P
The upper corner member 1 is formed of an injection molded body made of P. The upper corner material 1 is provided on the outer side of the upper portion of the insertion piece 1a having a U-shaped cross section having an R-shaped curved surface to support the stacking of containers. The raised piece 1b is integrally formed, and a plurality of rivet holes 1c are opened in the insertion piece 1a through the inside and outside thereof.

The lower corner member 2 is formed into an L-shape having an R-curved surface outside the substrate 2a, and the outer wall 2b is integrally formed.
The board 2a is provided with a bolt hole 2c penetrating the top and bottom of the board 2a and an upright guide 2d of the vertical frame 3.
The substrate 2a and the outer wall 2b have a plurality of rivet holes 2e penetrating therethrough. Further, a shaft hole 2f is formed in the outer wall 2b to hinge the vertical frame 3 so that the vertical frame 3 can be folded and unfolded. The function of the shaft hole 2f will be described later. The thickness of each of the corners 1 and 2 is set as indicated by a broken line, and the ribs are formed at predetermined intervals so as to reinforce the thickness.

Among the members, the vertical frame 3, the horizontal frame 6, the side edge frame 7, and the modified L-shaped frame 8 are also made of PP, and are each formed of an extruded body having a predetermined irregular cross-sectional shape. Is formed in the following shape.

The vertical frame 3 has a substantially L-shaped cross section in which a planar shape forms an R-shaped corner. On both sides thereof, a vertical guide groove 3a for fitting the side edge of the side plate 5b is formed in the side plate. By integrating the partition ribs 3b at the back, the weight is reduced and the strength is improved.

The horizontal frame 6 has a U-shaped cross section, covers the upper cut-off edge of the side plate 5b, and reinforces this edge.

The side edge frame 7 has a U-shaped cross section covering the side edge of the side plate 5a, and a slide piece 7a having a U-shaped cross section which is in contact with the back of the vertical guide groove 3a of the vertical frame 3 is integrated. It is formed in a shape.

The deformed frame 8 has an L-shaped side plate receiving piece 8 along an outer portion having a U-shaped cross section to be fitted to an edge of the bottom plate 5a.
a is integrated.

Each of the above members is used after being cut into lengths corresponding to standard dimensions in the vertical, horizontal and height directions.

The polypropylene panel 5 is a hollow panel obtained by integrally melt-extruding a cross-sectional shape having ribs and a liner as shown in the drawing and developed by the present applicant and cooling and solidifying the same. (Product name: Ube Nitto Kasei Co., Ltd .: preferably a dam plate) or PP foam plate material having relatively low expansion ratio and rigidity (for example, Mitsui Toatsu Platec product name: Paronia Super is used), etc. The panel material is a lightweight and high-strength panel material having a predetermined thickness, and is cut into vertical and horizontal dimensions corresponding to the standard dimensions of the bottom plate 5a and the side plate 5b.

The connection between the corner members 1 and 2 and the vertical frame 3 is fixed via PP rivets or clips. PP between the bottom plate 5a, the side plate 5b and each of the corners 1 and 2.
It is fixed via rivets and clips, or as will be described later, only the side plate 5b is detachably mounted between the corners 1 and 2.

The assembling procedure in the above-described component configuration will be described with reference to FIG. First, the bottom plate 5a is set in a state where the four corners are positioned at the four lower corners 2 as shown in (a), and fixed with rivets or clips through the rivet holes 2e. Next, as shown in FIG.
A modified L-shaped frame 8 is inserted and fixed as a lower edge frame around the periphery of.

Next, as shown in FIG.
A vertical frame 3 is erected on the top, and bolts or rivets,
Connect with clips etc. As described above, the L-shaped upright guide 2d protrudes from the inner inner bottom surface of the lower corner 2, and the vertical frame 3 is inserted into this position to accurately position the frame. In this state, the lower corner 2 and each vertical frame 3 are connected via bolts or rivets.

Next, as shown in (d), the horizontal frame 6 is fitted and fixed to the upper edge of the side plate 5b, and the side edge frames 7 are fitted and fixed to both sides to reinforce the ends, and as shown in (e). Then, if each side plate 5b is dropped between the vertical frames 3, it becomes a box shape with an upper surface opening as shown in FIG.

Thereafter, the upper corner 1 is fitted to the corner of the side plate 5b, and is riveted or clipped.
As shown in (g), a container 10 having predetermined vertical and horizontal heights opened at the upper surface is completed.

In the above assembling, by assembling each member according to the procedure while referring to the assembling specification, etc., anyone can easily assemble without requiring special skills, and the The packaging of the time,
Since the required components can be shipped in a flat package that is not a finished product, the transportation is also simplified.

The weight in the finished state is 0.70 L × 100 W × 800 H, which is a general specification, and the upper and lower liners of the hollow panel are 0.7 mm.
mm, ribs are 0.5 mm, and pitch between ribs is 9.2 m
m, a total thickness of 9.8 mm, and a damper plate J made by the present applicant.
(Trade name) is 16-28kg, which is lighter than conventional iron frames using wire mesh (6
0%), has a sufficient load strength, is capable of stacking, and when assembled, has an elegant appearance with corners having an R-curved surface, which is a desirable design.

FIG. 5 shows the basic shape of the assembly type container 10 completed by the above assembly procedure. Note that the vertical and horizontal dimensions in this figure are square, and the aspect ratio shown in FIG. 4 is different from that of the rectangular one, but this is because of the vertical and horizontal cutting dimensions according to the standard volume of the hollow core panel 5 constituting the bottom plate 5a and the side plate 5b. It can be set freely according to the length of each frame.

FIG. 6 shows a container in which a pallet 11 made of PP is integrally mounted on the bottom surface of the container 10 described above. Each surface of the pallet 11 has a pair of support holes 12 for forks.
Is opened, stacking by forklift in all directions,
It allows loading and unloading. The container 10 and the pallet 11 can be joined via bolts through the bolt holes 2d.

FIG. 7 shows a container 1 instead of the pallet 11.
The three girders 13 made of square bars are arranged as raising materials on both sides and the center of the bottom surface of 0, and in this case, it is also possible to stack and unload with a forklift. In this case, wood or FRP material is used as the square lumber. Although it is not possible to form all of the lumber with PP, the separation process is simple and there is no generation of dioxin during incineration.

FIGS. 8 (a) and 8 (b) show a PP box 14 at each of the four corners of the bottom of the container 10 instead of the pallet 11, and a PP box 14 between the two boxes on opposite sides of the bottom of the container 10. Sub-raising box 15 made of
Are mounted as raising materials, and the raising boxes 14 and the concave portions 14a, 15 on the surface of the sub raising box 15 are further mounted.
1A shows a container 10 in which a flat bar 16 made of metal such as aluminum is fitted and fixed.

The flat bar 16 and the recesses 14a, 1
5a, the bolt 17 is inserted into an insertion hole 16a provided in the flat bar 16, and a bolt hole provided at a position of the raising box 14 and the sub raising box 15 which is aligned with the insertion hole 16a. (Not shown)
It is to be made by concluding the agreement.

In the present embodiment, the sub-raising box 15 and the flat bar 16 are respectively mounted on two opposing sides of the bottom surface of the container 10, but may be mounted on all four sides of the bottom surface of the container 10. In this case as well, stacking and unloading with a forklift becomes possible.

FIG. 9 shows a case where the casters 18 are arranged at the corners of the bottom surface of the container 10. This case is suitable for use in which the container 10 is moved on the floor. Although not shown, in order to allow the casters 18 to be attached,
A mounting hole may be formed in the center of the lower surface of the substrate 2a in the lower corner member 2 in advance. FIG. 10 shows that one of the side plates 5b can be dropped in and removed in a manner of using the vertical frames 3 on both sides as guides. Things. In this case, the stored items can be taken in and out from the side, which is advantageous when the container 10 is deep. In this case, it can be achieved by completely fixing the horizontal frame 6 and the side edge frame 7 disposed around the movable side plate 5b and separating the upper corner member 1 from the movable frame. Reference numeral 19 in the figure is a clue pull formed on the side plate 5b.

FIGS. 11 and 12 show the container 10 which can be folded and unfolded. In this case, similarly to the above, the front and rear side plates 5b-1 can be dropped and detached using the vertical frames 3 on both sides as guides, and the left and right side plates 5b-
2 can be folded together with the vertical frame 3 toward the bottom plate 5a.

To this end, the outer wall 2b of the lower corner material 2
Is provided with the shaft hole 2f described above. This shaft hole 2f
As shown in enlarged form in FIGS. 1, 3 and 12 (b), the vertical frame 3 has two inverted L-shaped communicating holes, and the vertical frame 3 is in an upright state. The hinge shaft 20 supporting the shaft 3 is located below the shaft hole 2f and held in an upright state. When the vertical frame 3 is pulled up from this state, the lower end of the vertical frame 3 is disengaged from the upright guide 2d, and the hinge shaft It is possible to rotate inward with reference to 20.

Accordingly, as shown in FIG. 12 (a), the front and rear side plates 5b-1 are held in a box-like state in a fitted state and can be used as a container.

From this state, as shown in (b), if the front and rear side plates 5b-1 are pulled up and then the vertical frame 3 is raised, the vertical frame 3 is moved together with the left and right side plates 5b-2 with the hinge shaft 20 as a base point. Can be folded.

As a result, as shown in (c), after being used as a container, it can be stacked in a flat folded state, and the package after transporting the goods can be stored compactly. Upon reassembly, the original box shape can be easily restored by the reverse procedure.

[0046]

As is apparent from the above description, the assembled container according to the present invention has the following advantages. Except for some bolt joints, it is made of all PP, including rivets or clips, and is very easy to separate at the time of disposal and recycling, and there is no risk of generating dioxin during incineration. Anyone can easily assemble by looking at the assembly specifications. Also,
This makes it possible to compactly assemble each component as a semi-finished product, instead of as a finished product, and ship it to the factory for sale. Also, if the bolts, rivets or clips are removed, the parts can be easily disassembled. Despite being made of all PP, it is lightweight, uses a small amount of resin, can be manufactured at low cost, has sufficient strength at corners, etc., and improves the overall strength in the assembled state. By using the fold-out type, it is possible to flatten the package after transporting the goods.

[Brief description of the drawings]

FIGS. 1 (a) to 1 (c) are views showing each part of an assembly type container according to the present invention.

2 (a) to 2 (d) are views showing components subsequent to FIG. 1;

FIG. 3 is an exploded perspective view showing an assembling relationship of each part in the container.

FIGS. 4A to 4G are perspective views showing a procedure for assembling the container.

FIG. 5 is a perspective view showing a basic shape of the container.

FIG. 6 is a perspective view showing a container to which a pallet is added.

FIG. 7 is a perspective view showing a container to which a girder is added as a raising material.

FIG. 8A is a perspective view showing a container in which a raising box is added as a raising material, and a flat bar is fitted over and fixed to the raising box. FIG. 8B is a perspective view showing the raising box as viewed from the bottom of the container. It is an expansion perspective view which shows the mounting structure of a flat bar.

FIG. 9 is a perspective view showing a container to which a caster is added.

FIG. 10 is a perspective view showing a container that can be opened and closed on its side by a drop-in side plate.

FIG. 11 is a perspective view showing a container in which a side plate can be folded and unfolded.

12 (a) to 12 (c) are explanatory views showing forms from the assembled state of the container to the folded storage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper corner material 2 Lower corner material 3 Vertical frame 3a Vertical guide groove 5 Panel 5a Bottom plate 5b Side plate 6 Horizontal frame (upper reinforcing frame) 7 Side frame (side reinforcing frame) 8 Modified L-shaped frame (lower frame) 8a Side plate receiver 10 Container 11 PP pallet 13 Girder (raising material) 14 Raising box (raising material) 18 Caster 20 Hinge shaft

Claims (10)

[Claims] 1. A bottom plate, four side plates standing upright on four rounds of the bottom plate, a lower corner member having four corners of the bottom plate installed and fixed, and an upright corner fixed at an upper corner of each lower corner member; A vertical frame having a substantially L-shaped planar shape formed with a vertical guide groove through which a side end of the side plate is inserted on both sides, and an upper corner material having a substantially L-shaped planar shape formed with a groove for fitting and fixing the upper end of the vertical frame The bottom plate and the side plate are polypropylene panels,
An assembling container, wherein the upper and lower corner members are injection-molded articles made of polypropylene, and the vertical frame is made of an extruded article made of polypropylene. 2. A bottom edge frame made of a polypropylene extruded body integrally fitted with the bottom plate and having a receiving portion for receiving a lower edge of the side plate, which is fitted around the bottom plate. The prefabricated container according to claim 1. 3. The assembly type container according to claim 1, wherein an upper reinforcing edge frame made of a polypropylene extruded product fitted to the upper edge of the side plate is provided. 4. The side plate according to claim 1, wherein both side edges of said side plate are provided with side reinforcing edge frames made of an extruded body made of polypropylene and fitted to said side plates. The assembled container as described. 5. The prefabricated container according to claim 1, wherein a pallet made of polypropylene is integrally connected to a bottom surface of the container. 6. The prefabricated container according to claim 1, wherein a plurality of girder-like or block-like raising materials are integrally connected to the bottom surface of the container. 7. The assembly type container according to claim 1, wherein a caster is mounted at a bottom portion of each lower corner material through a mounting hole. 8. The apparatus according to claim 1, wherein at least one of the side plates is detachably attached in a dropping manner along a vertical guide groove of the vertical frame. Assembling type container. 9. The assembly type container according to claim 8, wherein opposed vertical frames are supported on the lower corner member via a hinge shaft so as to be tiltable inwardly from each other. 10. A resin rivet or clip made of polypropylene is used as means for connecting the lower corner material to the bottom plate and means for connecting the upper corner material to the vertical frame. An assemblable container according to claim 1.