JPS5911863Y2 - Edge reinforcement structure for cases made of sheet materials such as cardboard - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reinforcing structure for the edge portion of a case made of sheet material such as cardboard, cardboard, power board, plastic board, etc.

2. Description of the Related Art Conventionally, there have been provided simple assembly-type cabinets constructed by folding cardboard.

This cardboard cabinet has advantages such as being inexpensive, allowing the user to assemble it before use, and being convenient for storage and transportation.

Since these cardboard cabinets are stacked in multiple tiers, plate-shaped reinforcing members are attached to the front, rear, left, and right sides of the outer case.

This plate-like connecting and reinforcing material was installed by caulking cut and raised pieces provided at multiple locations to the outer case.

This caulking process must be performed in at least two places for each reinforcing member, and if the reinforcing members are attached to a total of 8 locations on the front, rear, left, and right of the outer case, there will be many work steps. It's inefficient.

Moreover, since the caulking process requires skill, a reinforcing material that also serves as a connection must be attached to the outer case in advance.Since this reinforcing material that also serves as a connection is made of metal, there is a risk of damaging the cardboard during transportation. be.

Additionally, the edges of the outer case are folded inward for reinforcement and to improve the appearance, but this folding piece must be firmly folded into the outer case to allow smooth insertion and removal of the drawer. However, a considerable amount of effort must be spent on assembly work.

Moreover, the folding pieces cannot be folded in an orderly manner, and it is aesthetically pleasing.
There were some drawbacks such as some difficulties.

The purpose of the present invention is to easily improve the edges of not only the outer case of the conventional cardboard cabinet but also cases made of sheet materials such as cardboard, power boards, and plastic sheets. The structure can be strongly reinforced, and it can be installed without requiring any skill when using it, so it can be transported separately from the sheet material to prevent damage to the sheet material, and the folded pieces at the edges are not necessarily To provide an edge reinforcement structure for a case made of a sheet material such as cardboard, which can be fixed without being folded tightly and further improves aesthetic appearance by making the edge part of the sheet material orderly. .

In order to achieve this purpose, the edge reinforcement structure of the present invention forms a folded part at the edge of a case made of sheet material such as cardboard, and a reinforcing frame is inserted inside this folded part, and the left and right sides are reinforced. The edge portion is covered by an edge portion reinforcing member which is provided with a pair of support plates facing each other on the edge plate, and a retaining piece connected to the inner support plate of the edge portion reinforcing member is engaged with the reinforcing frame. It is characterized by the fact that

Hereinafter, an example in which the edge portion reinforcing structure of the present invention is implemented for reinforcing the edge portion of an outer case of a prefabricated cabinet made of cardboard will be specifically explained based on the drawings.

In FIGS. 3 and 4, reference numeral 1 denotes an outer case of a cardboard cabinet, and a drawer (not shown) is housed inside the case so as to be freely put in and taken out.

This outer case 1 has a top plate 2,
Each folded piece 6 following the left and right side plates 3 and 4 and the bottom plate 5 is folded inward, and a reinforcing frame 7 (see Fig. 2) made of a metal bar is interposed at the deep inside of the folded part. Reinforced.

Notches 8 are formed in the upper and lower parts of the left and right folded pieces 6 to expose a part of the reinforcing frame 7, and a hole 9 is bored in the center of the left and right side plates 3, 4 and the folded pieces 6. There is.

At the rear edge of the outer case 1, each folded piece 10 following the top plate 2, left and right side plates 3, 4, and bottom plate 5 is folded inward, and a reinforcing frame made of a metal bar is formed at the inner deep part of the folded part. 11 is inserted and reinforced, and each folded piece 10
A rear plate 12 following the edge is provided so as to be located slightly inward of the edge.

Similarly, there are notches 10 at the top and bottom of the folded pieces 10 on both the left and right sides.
a shape, and holes (not shown) are similarly bored in the center portions of the left and right side plates 3, 4 and the folded piece 10.

On the other hand, each edge reinforcing member 13 attached to the front and rear edges of the left and right side plates 3 and 4 is made of a material with excellent strength, such as a relatively thin metal plate.

As is clear from FIGS. 1A and 1B and FIG. 2, support plates 15 and 16 are disposed opposite each other in the longitudinal direction of the edge plate 14, and the inner support plate 15 is connected to the outer support plate 15. 16 and the edge plate 14 on both upper and lower sides.

Semicircular notches 17 are formed in the upper and lower sides of the support plate 15 and in the center.

The upper part 15a of the upper notch 17 and the lower part 15b of the lower notch 17 in the supporting plate 15 are inclined so that the open end side is slightly narrower, and an engaging piece 18 is attached to the end of the holding plate 16 at the end of these inclined parts 15a, 15b. It is set up in a row towards.

In this embodiment, a means for connecting and positioning the upper and lower outer cases 1 when stacking the outer cases 1 in multiple stages, and a means for connecting the left and right outer cases 1 when the outer cases 1 are arranged in parallel are provided. ing.

To explain one example, a pair of cut grooves 19 are formed in the upper and lower parts of the outer supporting plate 16 in the edge portion reinforcing member 13 in the horizontal direction, and the space between each cut groove 19 projects outward to form a groove in the vertical direction. 20 are arranged, and grooves 21 are similarly formed in the horizontal direction at positions close to the grooves 20 on both sides of the clamping plate 16.
The space between each kerf 21 is projected outward as 22, and the upper and lower end surfaces serve as stoppers 23.

A longitudinal long hole 24 is bored in the middle part of the protrusion 22 .

The upper and lower outer cases 1 are provided with grooves 20 of edge reinforcing members 13 attached thereto. 20 are connected by a connecting plate 25, and the left and right outer cases 1 are connected by bolts and nuts 26 using the long holes 24 of the edge reinforcing members 13 attached thereto (see FIG. 3).

As shown in FIGS. 3 and 4, the front and rear left and right edges are covered with reinforcing members 13, and the engaging pieces 18 are elastically attached to the reinforcing frames 7 and 11 through the notches 8 and 10a. engage.

At this time, the reinforcing member 13 has excellent rigidity, and the inclined portion 15 a
, 15b and the engagement piece 18 have poor elasticity, and if the retention piece 18 is insufficiently secured to the reinforcing frame 7, the inclined portions 15a, 15b may be bent toward the clamping plate 16. The locking piece 18 can be reliably engaged with the reinforcing frames 7, 11.

The engaged state can be confirmed from the notch 17.

In order to stack the outer cases 1 whose edges are reinforced in this way, the upper groove 2 of the reinforcing member 13 of the lower outer case 1 is
0, insert the upper half of the connecting plate 25 into the groove 20 at the bottom of the reinforcing member 13 of the upper outer case 1, and insert the upper and lower parts of the connecting plate 25 into the lower and upper reinforcing members. It is supported by 13 stoppers 23.

In addition, the parallel outer cases 1 are secured to the clamping plate 1 by bolts and nuts 26 using the elongated holes 24 from the central notch 17 and hole 9.
Connect between 6 and 16.

At this time, since the elongated hole 24 is formed in the center of the outwardly protruding portion 22, it is possible to prevent the bolt and nut 26 from protruding into the outer case 1.

FIG. 5 shows another example of the edge reinforcing member 13 used in the present invention.

In this example, a metal material with excellent elasticity is used for the inclined parts 15a, 15b and the retaining piece 18 following them,
The base portions of the inclined portions 15a and 15b are welded to the edge plate 14.

With this structure, the angle of inclination of the inclined parts 15a and 15b with respect to the supporting plate 16 can be increased, and the engaging piece 18 can be elastically and securely engaged with the reinforcing frame 7, thereby facilitating assembly. There is no need to bend the inclined portions 15 a and 15 b at this time.

Note that the rear edge reinforcing member 13 may be omitted, and in this case, the rear plate 12 is provided at the rear end of the top plate 2, side plates 3, 4, and bottom plate 5, and a part of the rear plate 12 is inserted inside thereof. A notch may be provided along the reinforcing frame 11, and this notch may be used to hold the upper and lower reinforcing frames 11 with elastic clips.

Further, the upper and lower edges may be reinforced in the same way as the left and right edges.

The present invention can be modified in various other ways without departing from its basic technical concept.

As is clear from the above, according to the present invention, a reinforcing frame is inserted inside the folded portion of the left and right edge portions of the sheet material case, and the edge portion reinforcing members cover the left and right edge portions of the sheet material case. The engaging piece of this reinforcing member is engaged with the reinforcing frame.

Therefore, the edges of the case made of sheet material can be strongly reinforced, and the case can be stacked in multiple stages.

In addition, the work of inserting the reinforcing frame, covering the edge reinforcing member, and engaging the engaging piece of the reinforcing member with the reinforcing frame do not require skill, so they can be easily performed during use, and the sheet material The sheet material can be transported separately, preventing damage to the sheet material.

In addition, since the edges on both the left and right sides are held by the edge reinforcing members, after folding the upper and lower folded pieces, if the folded pieces on both the left and right sides are folded back and supported by the reinforcing members, the upper and lower folded pieces can be can be fixed in a securely folded state by being pressed by the left and right folding pieces that are fixed in a securely folded state.

This has the advantage that the aesthetic appearance of the edge portion can be improved.

[Brief explanation of the drawing]

1A and 1B show an example of an edge reinforcing member used in the edge reinforcing structure of the present invention; FIG. 1A is a plan view, and FIG.
Figure 2 is an exploded perspective view of the edge reinforcing member and reinforcing frame used in this invention, and Figure 3 is an outside view of a cardboard cabinet in which the edge reinforcement structure of this invention is implemented. Perspective view of the case, Figure 4 is IV-IV in Figure 3
A sectional view taken in the direction of arrows, FIG. 5 shows another example of the edge reinforcing member used in the present invention, and is a sectional view similar to FIG. 1B. 1... Outer case of the cardboard cabinet,
7, 11...Reinforcement frame, 13...Edge portion reinforcement member, 14...Edge plate, 15.16.
...Holding plate, 18...Engagement piece.

Claims (1)

[Scope of utility model registration request] A folded part is formed on the edge of a case made of sheet material such as cardboard, a reinforcing frame is inserted inside this folded part, and a pair of supporting plates are connected to the edge plate facing each other at the left and right edge parts. An edge reinforcement structure for a case made of sheet material such as cardboard, characterized in that the case is covered with an edge reinforcement member, and a retaining piece connected to an inner supporting plate of the edge reinforcement member is engaged with the reinforcing frame. .