JPH0315463Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is made by bending each member from a single plate-shaped base material and engaging the upper cover plate without using any adhesive. The present invention relates to a paper box that can be assembled together, especially a paper box that does not have an engaging member on the bottom plate.

[Prior art]

Conventionally, as for an assembly-type box having no engaging member on the bottom plate as described above, a bottom plate, side plates, and folding plates are provided on a single base material, and the side plates and folding plates are sequentially and alternately arranged around the bottom plate. There is a known one that is assembled by folding along the fold line (see Utility Model Publication No. 57-36580).

[The problem that the idea attempts to solve]

However, in such conventional assembling boxes, the side plates that are folded into the interior are not equipped with a mechanism to maintain the folded state, and as a result, the box is in an extremely unstable state.

Therefore, the present invention solves the above problems and provides a box that can maintain the assembled state in a stable state even though no adhesive is used, and can also store the contents during assembly. The task is to do so.

[Means to solve the problem]

In order to solve the above problems, the present invention includes four square outer plates that are connected to each other on four sides of the bottom plate so as to surround a square bottom plate, and a lid plate that is connected to the top of the outer plates. , four inverted isosceles triangular inner plates are connected to the four corners of the bottom plate, locking plates having locking notches on both sides are connected to the upper part of the inner plates, and the outer side A triangular folding plate is provided in succession between the plate and the inner plate, and the outer plate and the inner plate are further erected,
The folding plate is folded into the inside of the outer plate, the locking notches provided in the locking plate are engaged with each other, and the lid plates are fixed to each other when facing each other. provide.

[Effect]

To assemble the present invention in a flat plate state into a box, the inner and outer plates are stood up, and the locking notches provided in the locking plates on the upper part of the inner plate are engaged with each other. As a result, the inner plate functions in the same way as the side plate in a normal box, forming an opening, making it possible to perform operations such as storing the contents at this point.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings. In FIG. 2, a trapezoidal outer plate 2 is connected to four sides of a rectangular bottom plate 1, and a cover plate 3 is connected to the tip of the outer plate 2 via a broken line. A locking notch 4 is provided from the upper side surface, and a locking protrusion 5 having a fold line extending from the inner end of the locking notch to the upper end of the lid plate is provided.

An isosceles triangular inner plate 7 connected to the corner 6 of the bottom plate 1 is provided between adjacent outer plates 2. A locking plate 8 is attached to the tip of the inner plate via a broken line.
A locking protrusion 9 having a locking notch 10 is provided on both sides of the locking plate 8.

Furthermore, the paper box is provided with a triangular folding plate 11 between the outer plate 2 and the inner plate 7, which includes the sides of both side plates and is continuous with the corner 6 of the bottom plate 1.

To assemble the above paper box, first
Fold the four sides into a mountain fold and stand up the outer plate 2. Next, the folding plate 11 is folded inside the outer plate with the side of the folding plate 11 in contact with the outer plate being mountain-folded and the side of the folding plate 11 in contact with the inner plate 7 being valley-folding.

Then, the adjacent locking plates 8 are sequentially engaged with each other by the locking notches 10 of the locking projections 9, thereby completing the assembled state of the inner plate. Further, the locking plate 8 engaged at this time forms an opening of the box, and the contents can be stored therein.

Next, the lid plate 3 is bent along the fold line, and the locking protrusions 5 of the opposing lid plates are engaged with each other along the cut line 4, and the box is completed.

Further, in the above embodiment, the lid plate is provided on the upper part of the outer plate via a fold line, but it is also possible to connect the cover plate without providing a fold line and curve it into a dome shape.

As for the method of engagement, it is possible to simply provide a locking notch without providing the locking protrusion provided at the tip of the cover plate, or it is also possible to use adhesive tape or the like without providing a locking notch. .

[Effect of idea]

Since the present invention has the above-described configuration, a stable box can be obtained by simply bending a single flat substrate without the need for any adhesive or the like.

In addition, by engaging the locking protrusions provided on the locking plate at the top of the inner plate, a stable assembled state can be maintained without closing the lid.
To simplify the work of assembling a box and the work of storing contents.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention.
The figure is a perspective view showing an assembled state, FIG. 2 is a developed plan view, and FIG. 3 is a perspective view of the completed assembly. 1... Bottom plate, 2... Outer plate, 3... Lid plate, 7...
...Inner plate, 8... Locking plate, 9... Locking protrusion, 11
...folding board.

Claims (1)

[Scope of utility model registration request] Four square outer plates are arranged in a row on the four sides of the bottom plate so as to surround the square bottom plate, a cover plate is arranged in a row on the upper part of the outer plate, and four outer plates are arranged in a row on the four corners of the bottom plate. an inverted isosceles triangular inner plate is provided in series, a locking plate with locking notches provided on both sides is provided in the upper part of the inner plate, and a triangular folding plate is provided between the outer plate and the inner plate. furthermore, the outer plate and the inner plate are made to stand up, the folding plate is folded inside the outer plate, the locking notches provided in the locking plate are engaged with each other, and the lid is closed. A prefabricated box made by fixing opposing plates together.