JPH049298Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to packaging boxes that can be stacked in a semi-assembled state and that can be easily assembled from this semi-assembled state.

(Prior Art) Conventionally, there are various packaging boxes of this type that are assembled by folding up all the side plates connected to the bottom plate. For example, Japanese Utility Model Application No. 58-21510 discloses A box body is formed by mutually locking them at the corner parts, and the corner parts of the side plates form a slit in one side plate and connect a flap to the other side plate, and this flap is inserted into the slit. An assembly-type paper box is disclosed which is formed so that the box can be assembled by locking the box.

In addition, Japanese Utility Model Publication No. 38-20066 states that side paper having sections on the left and right sides of the bottom of the paper can be constructed of folded lines, and that side paper that has origami on the top and bottom of the paper can be constructed of folded lines. Then, make a notch on the fold line, provide a protruding piece on the origami, provide a fold line on the cut piece,
A structure of a display paper box is disclosed in which a side paper is stood perpendicular to the bottom of the paper, and a protruding piece is inserted into the cut line so that the cut piece is wrapped with the paper bottom, origami, and the side paper.

(Problem to be Solved by the Invention) However, the above-mentioned assembly-type paper boxes are usually stored in a stacked state in an unfolded state without folding up each side panel. This is because when packaging boxes are assembled and stacked, other packaging boxes cannot fit inside the packaging box, making it extremely bulky and difficult to store efficiently.
This was due to the drawback that storage space etc. could not be used effectively. Therefore, for example, when packaging products at a store, etc., each side plate is folded up from the unfolded state, and the corners of the side plates are locked (the flaps are inserted into the slits and locked). I had to assemble the box,
This assembly was surprisingly troublesome and took a long time to assemble.

In addition, the structure of the above-mentioned display paper box is such that the cut pieces are inserted between the origami paper and the side paper, and depending on the insertion state, it can be used as a box of three different shapes. Since it is simply inserted between the origami and the side paper, there is a risk that the section may easily slip out or shift from between the origami and the side paper due to external force, etc., especially when used as an ordinary rectangular box. When this is done, there are problems in that the shape tends to collapse due to appropriate external forces, and it is difficult to maintain this shape.

(Means for Solving the Problems) Therefore, the present invention solves the above-mentioned difficulties, can be stacked without bulk, is extremely easy to assemble, and has a shape of the assembled packaging box. It was devised for the purpose of providing a packaging box that will not easily collapse due to appropriate external force, etc. Specifically, it is designed to provide a packaging box that does not easily collapse due to appropriate external forces, etc. A folding space is formed by the folding plates 3 which are connected to each other through the fold line 21, and the folding plates 6 which are connected to the both side edges of the front and rear side plates 5 through the fold lines 24 are forced into the folding space. When inserted, the packaging box A is constructed such that the left and right side plates 2 and the front and rear side plates 5 are maintained in an upright state with respect to the bottom plate 1.

The folding plate 6 is composed of a primary folding piece 6a and a secondary folding piece 6b connected to the primary folding piece 6a via a fold line 25. Then, when up to the primary folding piece 6a is forcibly inserted into the folding space, the left and right side plates 2 and the front and rear side plates 5 are in an inclined state expanding outward with respect to the bottom plate 1, and this inclination Configure to maintain state. Furthermore, when the secondary folding piece 6b is forcibly inserted into the folding space, the left and right side plates 2 and the front and rear side plates 5 are configured to be maintained upright with respect to the bottom plate 1.

Further, a locking protrusion 6c is provided protruding from the primary folding piece 6a, and a locking piece 10 having a locking notch 11 is provided in the folding space by using a part of the folding plate 3, so that two locking pieces 6c are provided in the folding space. When the next folding piece 6b is forcibly inserted, the locking protrusion 6c is inserted into the locking notch 11 of the locking piece 10.
We adopted a means of configuring it so that it can be locked in place.

(Function) Therefore, when the packaging box A of the present invention is in a semi-assembled state in which up to the primary folding piece 6a of the folding plate 6 is inserted into the folding space between the left and right side plates 2 and the folding plate 3, The left and right side plates 2 and the front and rear side plates 5 are each in an inclined state so as to expand outward with respect to the bottom plate 1, so that the packaging boxes A can be stacked.

Further, when the folding plate 6 is in an assembled state in which up to the secondary folding piece 6b is inserted into the folding space, the left and right side plates 2 and the front and rear side plates 5 are in an upright state with respect to the bottom plate 1. Moreover, at this time, the primary folding piece 6a
The locking protrusion 6c is locked in the locking notch 11 of the locking piece 10, making it difficult for the folding plate 6 to come out or shift from the folding space, and the secondary folding piece 6b of the folding plate 6 is The assembled state inserted into the folding space is reliably maintained.

(Example) Hereinafter, the present invention will be explained with reference to illustrated examples.

A in the figure shows a packaging box of the present invention, and this packaging box A has left and right rectangular side plates 2 connected to a pair of long sides of a bottom plate 1 formed in a rectangular shape via a fold line 20, respectively. The front and rear rectangular side plates 5 are connected to the pair of short sides of the bottom plate 1 via the fold lines 23, and the upper part is opened by folding up the left and right side plates 2 and the front and rear side plates 5, respectively. It is shaped like a rectangular container.

Rectangular folding plates 3 are connected to the upper edges of the left and right side plates 2 connected to the pair of long sides of the bottom plate 1 via fold lines 21, and the lower edges of these folding plates 3 are folded. The rectangular adhesive pieces 4 are connected to each other along the line 22, the left and right side plates 2 are folded up along the fold line 20, and the folding plate 3 has the inner surfaces of the left and right side plates 2 aligned along the fold line 21. It is folded back, and the adhesive strip 4 is adhered to the upper surface of the bottom plate 1, thereby forming a folding space between the left and right side plates 2 and the folding plate 3. Furthermore, continuous substantially groove-shaped cut lines 12 are provided at predetermined positions on the folding plate 3 at its upper edge, and substantially trapezoidal locking pieces 10 are bonded to the inner surfaces of the left and right side plates 2. It consists of a part of the folding plate 3. Moreover, a substantially triangular locking notch 11 is cut out in this locking piece 10.

In addition, left and right side plates 2 and folding plates 3 are provided on both side edges of the front and rear side plates 5 that are connected to the pair of short sides of the bottom plate 1.
Folding plates 6 that are forcibly inserted into the folding spaces between the two are connected to each other via the fold line 24. and,
This folding plate 6 has fold lines 24 on both side edges of the side plate 5.
A substantially inverted triangular secondary folding piece 6 is connected via the
b, and a fold line 2 is formed on the inclined edge of this secondary folding piece 6b.
5, and the primary folding piece 6a is provided with the locking piece 10.
A substantially triangular locking protrusion 6c that can be locked in the locking notch 11 is provided in a protruding manner.

That is, when up to the primary folding piece 6a is forcibly inserted into the folding space (semi-assembled state), the left and right side plates 2 and the front and rear side plates 5 are expanded outwardly with respect to the bottom plate 1. It is formed to be held in a predetermined inclined state, and when up to the secondary folding piece 6b is forcibly inserted into the folding space (assembled state), the left and right side plates 2 and the front and rear side plates 5 are respectively attached to the bottom plate. 1, and the locking protrusion 6c of the folding plate 6 is locked in the locking notch 11 of the locking piece 10, so that this upright state is reliably maintained. ing.

The specific structure, shape, dimensions, material, etc. of the packaging box A are not limited to the illustrated examples, and can be freely set as appropriate.For example, although the illustrated examples are omitted, It is also possible to form a packaging box A with a lid by attaching an appropriate lid plate to the side plate 5 of the box, or when the box body and the lid body are separated, not only the box body but also the lid body itself can be used according to the present invention. It is also possible to have a configuration like this.

By the way, the continuous arrangement (arrangement) of the folding plates 6 on the left and right side plates 2 and the front and rear side plates 5 is not limited to the illustrated example and can be freely set as appropriate. For example, the folding plates 6 may be provided in succession on one side edge of the left and right side plates 2 and the front and rear side plates 5, and folding spaces may be provided on the other side edges (not shown). .

Further, the configuration of the folding space by the left and right side plates 2 and the folding plate 3 is not only performed by adhering the adhesive strip 4 to the upper surface of the bottom plate 1 as shown in the illustrated example, but also other suitable means can be adopted. For example, the folding space may be constructed by directly bonding the left and right side plates 2 and the folding plate 3 at their central portions without providing the adhesive strips 4 (not shown).

The specific locking means and shape of the locking protrusion 6c and the locking notch 11 of the locking piece 10 can be set as appropriate. For example, as shown in FIG. 2, the locking protrusion 6c
When the locking notch 11 is in the locked state, the lower edge of the locking piece 10 and the upper edge of the primary folding piece 6a match and lock, and the left and right side plates 2 and the front and rear It may be possible to maintain the upright state of the side plate 5 more reliably.

In addition, in order to make the state in which the primary folding piece 6a is inserted into the folding space (semi-assembled state), for example, the left and right side plates 2 are folded up, and the folding plate 3 is inserted into the left and right side plates 2.
After folding back the inner surface and gluing the adhesive strip 4 to the upper surface of the bottom plate 1 to form a folding space between the left and right side plates 2 and the folding plate 3, insert the primary folding strip 6a into this folding space.
Insert. Alternatively, the primary folding piece 6a may be interposed in advance between the left and right side plates 2 and the folding plate 3, and then the adhesive piece 4 may be adhered to the upper surface of the bottom plate 1. At this time, when the primary folding piece 6a tries to move in the direction of being removed from the folding space, the locking protrusion 6c locks on the cut line 12 portion of the folding plate 3, and the primary folding piece 6a is moved in the folding space. It may be configured such that it is prevented from being removed from the holder.

The present invention is constructed as described above, and its use will be explained below. First, the left and right side plates 2 and the front and rear side plates 5 are folded up, and up to the primary folding piece 6a is forcibly inserted into the folding space to create a packaging box. Let A be in a semi-assembled state (see Figure 1). A large number of packaging boxes A in this semi-assembled state are stacked and stored (see FIG. 4). Also, when using it,
Take the stacked semi-assembled packaging boxes A from above, forcefully insert up to the secondary folding piece 6b into the folding space, and insert the locking protrusion 6c into the locking notch 11.
By locking the left and right side plates 2 and the front and rear side plates 5 into an upright state, the packaging box A is assembled.

(Effect of the invention) Therefore, according to the packaging box A of the present invention, the left and right side plates 2 and the front and rear side plates 5 can be assembled by simply inserting up to the primary folding piece 6a into the folding space and making it into a semi-assembled state. , it can be tilted so as to expand outward with respect to the bottom plate 1, a plurality of packaging boxes A can be stacked stably without being bulky, and the storage of a large number of packaging boxes A is facilitated. Storage space can be used effectively without wasting it. Moreover, from this semi-assembled state, the secondary folding piece 6
By simply inserting up to b into the folding space, the assembled packaging box A can be completed extremely quickly and easily, which is extremely useful for this type of packaging box A.

In particular, a locking protrusion 6c is provided protrudingly on the primary folding piece 6a, and a locking notch 1 is formed using a part of the folding plate 3.
1 is provided in the folding space, and when up to the secondary folding piece 6b is forcibly inserted into the folding space, the locking protrusion 6c is locked in the locking notch 11 of the locking piece 10. Therefore, once the packaging box A is assembled, the locking protrusion 6c locks into the locking notch 11, and the movement of the folding plate 6 within the folding space (the movement of the folding plate 6 from the folding space) is prevented. falling out or shifting)
Even if an appropriate external force is applied to the packaging box A, the packaging box A will not easily lose its shape, and the left and right side plates 2 and the front and rear side plates 5 will be in an upright state. can be maintained reliably, and the packaging box A itself in the assembled state is also extremely robust.

[Brief explanation of the drawing]

The drawings illustrate the present invention; Fig. 1 is a perspective view, Fig. 2 is a partially cutaway vertical sectional view of the main part, Fig. 3 is a developed view, and Fig. 4 is a vertical sectional view of the stacked state. be. A...Packaging box, 1...Bottom plate, 2...Side plate, 3
...Folding plate, 4...Glue allowance piece, 5...Side plate, 6...
Folding plate, 6a... Primary folding piece, 6b... Secondary folding piece, 6c... Locking projection piece, 10... Locking piece, 11...
... Locking notch, 12 ... Cut line, 20 ... Crease line,
21... Fold line, 22... Fold line, 23... Fold line, 24... Fold line, 25... Fold line.

Claims (1)

[Scope of utility model registration request] A folding space is constituted by the left and right side plates and folding plates connected to the upper edges of the left and right side plates via a fold line, and the folding plates are connected to both side edges of the front and rear side plates via a fold line. is forcibly inserted into the folding space to maintain the upright state of the left and right side plates and the front and rear side plates with respect to the bottom plate, and the folding plate is arranged between a primary folding piece and the primary folding piece. It consists of a secondary folding piece that is connected through the fold line, and when the primary folding piece is forcibly inserted into the folding space,
The left and right side plates and the front and rear side plates are configured to be in an inclined state such that they expand outward with respect to the bottom plate, and to maintain this inclined state, so that up to the secondary folding piece is forcibly inserted into the folding space. When the left and right side plates and the front and rear side plates are held upright with respect to the bottom plate, a locking protrusion is provided protruding from the primary folding piece, and a part of the folding plate is used. A locking piece with a locking notch is provided in the folding space, and when the secondary folding piece is forcibly inserted into the folding space, the locking protrusion is locked in the locking notch of the locking piece. A packaging box characterized by: