JPH0142484Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a bookcase-type container such as a video cassette case.

<Prior art> Conventional video cassette cases are containers in which the packaged object, such as the video cassette case, is wrapped in a material with thermal adhesive properties and then heat-sealed using hot air, a frame, etc., and is simultaneously packaged and manufactured into a box. In this case, side plates 1 and 2 of the same size are provided with a back plate 3 in between, as shown in FIG.
and a material 7 having outer folding pieces 5, 5 and tongue pieces 6, 6 on the upper and lower ends 3, and inner folding pieces 4, 4.
The opposing edges 8, 9 of the tongue pieces 6, 6 were positioned and shaped so as to overlap each other. Therefore, the case was manufactured by forming folds along the fold lines between the respective locations, and as shown in FIG. 2, the edge 9 was superimposed on the edge 8 and bonded.

However, in such a conventional structure, as shown in Fig. 2,
As shown in FIG. 3, since the tongue piece 6 is interposed between the inner folding piece 4 and the outer folding piece 5 in the assembled state, there is a relatively large gap a, which results in weak adhesive strength. , there is a problem of bumps when loading and unloading the contents due to the difference in level. In order to solve this problem, there has been proposed a device assembled from a material 7' as shown in FIG. 4, in which the tongue piece and the folded-in piece do not overlap. In this case, usually a material with heat adhesive properties on both sides or a flexible and rigid thermoplastic resin sheet such as polypropylene is used to wrap the packaged item, such as a cassette tape, and heat-seal it using hot air, a frame, etc. method is used, but,
Using this material 7', when the tongue piece 6' and the inner folding piece 4' are opposed and heat-sealed, there will be a space between the edge 9' of the tongue piece 6' and the edge 8' of the inner folding piece 4'. A gap was created, and there was a risk that the hot air used for thermal bonding or the frame would reach the inside of the container and damage the packaged items.

Furthermore, in order to eliminate the level difference that occurs when the inner and outer folding pieces and the tongue piece are folded together as described above, the applicant has removed most of the piece corresponding to the tongue piece and provided a slightly protruding piece. We previously proposed a structure as shown in Figure 5. The structure shown in FIG. 5 has a narrow rectangular back plate 12 in between.
Wide rectangular side plates of the same size on both the left and right sides 1
0 and 11 are arranged consecutively. Note that 16, 16 are notches for hanging fingers when putting in and taking out the packaged items. Outer folding pieces 1 having the same width as the side plate 10 and the same height as the width of the back plate 12 are provided at the upper and lower ends of the side plate 10.
3 and 13 are connected, and inward folding pieces 14 and 14 having the same width as the side plate 11 and the same height as the width of the back plate 12 are connected to the upper and lower ends of the side plate 11. Further, protrusions 15, 15 having a height approximately twice the thickness t of the material 7 are arranged in series at the upper and lower ends of the back plate 12. When folding and assembling this material, the side plates 10, 1
1 vertically along the fold line 1 with the back plate 12 in between, fold the inner fold pieces 14, 14, and from above fold the outer fold pieces 13, 13 over the fold lines m, n, as appropriate. It is easy to assemble by adhering with adhesive means, and even when using the above-mentioned method of forming a box while packaging, the inner folding pieces 14 almost completely block out the heat from hot air, frames, etc. However, after the assembly is completed, as shown in FIG.
5 and the end edge 17 of the outer folding piece 13, a new problem arises in that dust and the like enter the container through the gap 18 and have an adverse effect on the packaged items. Therefore, if the protruding piece 15 is sandwiched between the outer folding piece 13 and the inner folding piece 14 as shown in FIG. Due to the thickness of the adhesive, steps 19, 19 are formed on the inner and outer surfaces of the bonded portion, causing a problem in that it becomes a catch when loading and unloading the packaged items.

<Problems to be solved by the invention> The invention solves the problems of the conventional technology mentioned above, and
To provide a bookcase-type container that facilitates the loading and unloading of packaged items and provides excellent protection for the packaged items.

<Means for solving the problem> The present invention was devised to solve the above problem, and is a container that is assembled from a single sheet of blank material with punched and ruled lines. Side plates of approximately the same size are provided, outer folding pieces are provided at the upper and lower ends of one side plate, and inner folding pieces of approximately the same size and shape as the outer folding pieces are provided at the upper and lower ends of the other side plate, respectively, Projections thinner than the thickness of the material are provided at the upper and lower ends of the back plate, and the inner folding pieces, the protruding pieces, and the outer folding pieces are folded and glued in this order to form a bookcase type container.

<Function> Since the present invention is constructed as described above, even when the inner folding piece, protrusion piece, and outer folding piece are folded and glued together, there is no difference in level, and when packaging and assembling the packaged item The ends are completely covered with the inner folding piece, preventing hot air, frames, etc. from reaching the packaged items.

<Example> Hereinafter, a detailed description will be given based on an example of the drawings.

First, the present invention is assembled from a sheet of paper, a laminate of paper and a thermoplastic synthetic resin sheet such as polypropylene, or a single sheet of thermoplastic resin sheet, and is assembled from a single blank sheet with ruled lines. It is a bookcase-shaped container, and the 8th
As shown in the figure, wide rectangular side plates 20 and 21 of the same size are connected to each other at both left and right ends with a narrow rectangular back plate 22 interposed therebetween. In addition, 26,2
Reference numeral 6 denotes a notch on which to place one's finger when putting in and taking out the packaged items. The side plates 20 are provided at the upper and lower ends of the side plates 20.
Outer folding plates 23, 23 with the same width as 0 and the same height as the width of the back plate 22 are arranged in series, and at the upper and lower ends of the side plate 21, there are folded plates 23, 23 with the same width as the side plate 21 and the same height as the width of the back plate 22. Inner folding plates 24, 24 of the same height are connected via folding lines g, h, respectively. Further, at the upper and lower ends of the back plate 22, protrusions 25, 25 having the same width and low height as the back plate 22 are connected via fold lines q and r, and the protrusions 25, 2
As shown in FIG. 9, 5 has a thin section 27 which is cut or pressed to a thickness of, for example, one-tenth of the thickness of the material.
is provided at the shaded position in FIG.

Next, to explain how to assemble the present invention, fold the side plates 20 and 21 vertically along the fold line p with the back plate 22 in between, and fold the inner folding pieces 24 and 24.
is folded along fold lines p and q, and on top of this, the protrusions 25, 25 whose surfaces have been melted in advance with hot air, a frame, etc. are folded, and the outer folds 23, 23 are further folded on top of this. The container of the present invention is completed by adhering the inner folded piece, outer folded piece, and protruding piece to each other.

Furthermore, as another method of assembly, there is a method known in the industry as sack packaging. When using this method, first, a video cassette case or the like to be packaged is placed on the side plate 20, then the side plate 21 and the back plate 22 are folded up along the fold line p, and the side plate 21 is placed on the packaged item. Layer it on top. Furthermore, the inner folding piece 24,
24 is folded up along the folding lines p and q, and the protruding pieces 25, 25 are placed on the inner folded pieces 24, 24, and the thin parts 27, 27 are melted with hot air, a frame, etc., and folded along the folding lines p, q. Then, the outer folding pieces 23, 23 are folded on top of the outer folding pieces 23, 23 along the folding lines p and q, and the inner folding pieces, protrusion pieces, and outer folding pieces are glued together, and packaging and assembly are performed in one step. Good too.

<Effects of the invention> Since the present invention has the above-described configuration, it has the following excellent practical effects.

(b) There is no tongue piece on the top and bottom of the back plate as in the conventional case, but there is a slightly protruding protruding piece, and since the protruding piece has a thin part, it can be folded inwards as shown in Figure 11. When the piece 24, protruding piece 25, and outer folding piece 23 are folded and glued together, there is no difference in level as in the conventional case, so the packaged items can be put in and taken out smoothly, and the appearance is better than the conventional one. Are better.

(b) Since both the inner folding piece and the outer folding piece are the same width as the side plate and the height is the same as the width of the back plate, even when assembled using the so-called sack packaging method, when the inner folding piece is folded up, the packaged item Even if the end of the is completely covered with the inner folding piece, for example, the material (thermoplastic synthetic resin) is melted using hot air, a frame, etc.
Since the hot air, frame, etc. do not reach the packaged items, the packaged items are not damaged or deformed.

[Brief explanation of the drawing]

1 to 7 show the prior art. FIG. 1 is a developed plan view showing the first example of the prior art, and FIG.
The figure is a perspective view showing the folded state of the same essential part, Fig. 3 is a sectional view of the same part, Fig. 4 is a developed plan view showing the second example, and Fig. 5 is a developed plan view showing the third example. Figure, 6th
The figure is a plan view showing the main parts in the assembled state, FIG. 7 is a cross-sectional view of the main parts, and FIGS. Figure 9 is a sectional view taken along line A-A', Figure 10 is a perspective view,
FIG. 11 is a sectional view of the main part showing the folding and bonding part. 1, 2, 1', 2', 10, 11, 20, 21...
Side plate, 4, 4'14, 24...Inner folding piece, 3, 3',
12, 22... Back plate, 5, 5', 13, 23... Outer folding piece, 6, 6'... Tongue piece, 7, 7'... Material, 8, 8',
9, 9', 17... end edge, 15, 25... projecting piece, 16,
26...notch, a, 18...gap, 19...step, 2
7... Thin wall portion, l, m, n, p, q, r... Broken line.

Claims (1)

[Scope of utility model registration request] It is a container that is assembled from a single sheet of blank material that has been punched out and marked with lines. Side plates of approximately the same size are provided through the back plate, and outer folding pieces are placed at the top and bottom ends of one side plate, and outer folding pieces are placed at the top and bottom ends of one side plate, and side plates of approximately the same size are provided through the back plate. Inner folding pieces having approximately the same size and shape as the outer folding pieces are provided at the upper and lower ends, and projecting pieces thinner than the material thickness are provided at the upper and lower ends of the back plate, and the inner folding pieces and the projecting pieces are provided at the upper and lower ends of the back plate. , a bookcase-type container made by folding and gluing the outer folding pieces in order.