JP2013133109A - Assembly box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a front plate of an assembly box from being collapsed forward even in a condition that an inner flap and an outer flap of the assembly box are opened.SOLUTION: An assembly box 1 is assembled by folding one packaging cardboard, and includes a bottom plate 2, a rear plate 3, a rear outer flap 5, outer side plates 6 and inner bottom plates 7. The inner bottom plates 7 are folded inward of the outer side plates 6, the outer side plates 6 are folded inward of the rear plate 3, and the inner bottom plates 7 are arranged on the bottom plate. Front ends of both inner bottom plates 7 are engaged at engagement parts 7a, 7b. A front outer flap 10 is connected to an upper end edge of the front plate 4 which is connected to and raised from a front end edge of the bottom plate 2. Inner side plates 11 are connected to right and left side edges of the front plate 4. The inner side plates 11 are folded inward of the front plate 4, and overlapped on the inner sides of the outer side plates 6. Inner flaps 8 are connected to upper end edges of the outer side plates 6, and insertion parts 9 are formed in the inner flaps 8. Insertion pieces 12 are connected to the upper end edges of the inner side plates 11, and the insertion pieces 12 are inserted in the insertion parts 9.

Description

  The present invention relates to an assembly box formed by bending a plate material.

  As an assembly box for conventional cardboard packaging, there are a rear plate standing along the rear edge of the rectangular bottom plate, an outer flap connected to the upper edge of the rear plate, and left and right side edges of the rear plate. A continuous outer plate, an inner flap connected to the upper edge of the outer plate, and an inner bottom plate connected to the lower edge of the outer plate, the inner bottom plate being perpendicular to the inner side of the outer plate. It is known that the inner bottom plate is arranged on the bottom plate by bending the outer plate at a right angle with respect to the rear plate, and the tips of both inner plates are engaged with each other (see, for example, Patent Document 1). .

  In this assembly box, a front plate standing along the front edge of the bottom plate, an inner plate connected to the left and right side edges of the front plate, an over flap connected to the upper edge of the front plate, and an over flap An insertion piece provided at the tip is provided. And the upper surface of an assembly box is closed by inserting the insertion piece of an over flap in the insertion hole provided between the outer flap and the rear board in the state which closed the inner flap and the outer flap.

Utility model registration No. 3142249

  In the conventional assembly box, the front plate cannot be kept upright unless the insertion piece provided at the tip of the over flap is inserted into the insertion hole. For this reason, when putting the contents into the assembly box from above with the over flap opened, if a forward force is applied to the front plate, the front plate easily falls forward, and the contents are contained in the assembly box. There is a problem that it is difficult to accommodate.

  In view of the above, an object of the present invention is to provide an assembly box that can prevent the front plate from falling forward even when the inner flap and the outer flap above the assembly box are opened.

  In order to achieve the above object, according to a first aspect of the present invention, a rear plate connected to a rear end edge of a rectangular bottom plate is raised with respect to the bottom plate, and outer plates are provided on both left and right side edges of the rear plate. The inner bottom plate is continuously provided at the lower edge of the outer plate, the inner bottom plate is bent at a right angle with respect to the outer plate, and the outer plate is bent at a right angle with respect to the rear plate. The inner bottom plate is disposed on the bottom plate, and engaging ends are provided at opposite ends of the inner bottom plates so as to engage with each other, and a rear outer flap is provided at the upper end edge of the rear plate. A front plate connected to the front edge of the bottom plate is raised with respect to the bottom plate, front outer flaps are connected to the upper edge of the front plate, and inner plates are connected to the left and right side edges of the front plate. The inner plate is bent at right angles to the inner side of the front plate, and the inner plate is bent to the inner surface of the outer plate. The inner flap is connected to the upper end edge of the outer plate or the inner plate, respectively, and the inner flap is provided with an insertion portion, and is connected to the upper end edge of the inner plate or the outer plate. The inserted pieces are respectively inserted into the insertion portions.

  According to a second aspect of the present invention, a rear plate connected to a rear end edge of a rectangular bottom plate is erected with respect to the bottom plate, and outer plates are connected to left and right side edges of the rear plate, respectively. An inner bottom plate is connected to the lower end edge of each of the inner bottom plate, the inner bottom plate is bent at a right angle with respect to the outer plate, and the outer plate is bent at a right angle with respect to the rear plate. An engaging portion is disposed on the bottom plate, and the opposite ends of the inner bottom plates are engaged with each other. A rear outer flap is provided on the upper edge of the rear plate, and the upper edge of the outer plate. Each of the first inner flaps is continuously provided, the front plate connected to the front end edge of the bottom plate is erected with respect to the bottom plate, the front outer flap is continuously provided to the upper end edge of the front plate, Inner plates are connected to the left and right side edges, respectively, and the inner plates are bent inwardly at right angles to the front plate, A side plate is overlapped with the inner surface of the outer plate, and a second inner flap that is overlapped with the inner surface of the first inner flap is connected to the upper end edge of the inner plate, and the first inner flap and the second inner flap are connected to each other. One of the two is provided with a protruding insertion piece by being pushed in the thickness direction, and the other is provided with an insertion portion into which the insertion piece is inserted.

  According to the first aspect of the present invention, the inner plate is inserted into the insertion portion provided on the inner flap, and the inner plate is inserted and inserted into the insertion portion provided on the inner flap. Fixed to the outer plate via the inner and inner flaps. Moreover, according to the 2nd aspect of this invention, an inner side board and an outer side board are fixed by fixing a 1st inner flap and a 2nd inner flap with an insertion piece and an insertion part. Therefore, according to the present invention, it is possible to prevent the front plate from falling forward even when the inner flap above the assembly box and the outer flap are opened.

The perspective view which shows the assembly box of 1st Embodiment of this invention in the state which opened the flap. The expanded view of the assembly box of 1st Embodiment. The perspective view which shows the state which raised the backplate when assembling the assembly box of 1st Embodiment. The perspective view which shows the state which engaged the front-end | tip of both inner bottom plates when assembling the assembly box of 1st Embodiment. The perspective view which shows the state which raises a front board when assembling the assembly box of 1st Embodiment. The perspective view which shows the assembly box of 2nd Embodiment of this invention in the state which opened the flap. The expanded view of the assembly box of 2nd Embodiment. The perspective view which shows the state which raises a front board when assembling the assembly box of 2nd Embodiment.

[First Embodiment]
As shown in FIG. 1, the assembly box 1 of the first embodiment of the present invention is formed of a substantially rectangular parallelepiped, and is formed by punching a single packaging board such as cardboard into the shape shown in FIG. In FIG. 1, the outer flaps 5 and 10 and the inner flap 8 of the assembly box 1 are shown open. As shown in FIG. 2, a rear plate 3 is connected to the rear side edge of the rectangular bottom plate 2 via a fold line a, and a front plate 4 is connected to the front side edge of the bottom plate 2 via a fold line b. Are connected.

  A rear outer flap 5 is connected to the rear side edge of the rear plate 3 via a crease line c. Outer plates 6 and 6 are connected to the left and right side edges of the rear plate 3 via crease lines d, respectively. The outer plates 6 and 6 are provided with handle holes 6a and 6a, respectively. Inner bottom plates 7 and 7 are connected to the front end edges of the outer plates 6 and 6 via a crease line e, respectively. At the front end (front end) of one inner bottom plate 7, a convex portion 7 a that is formed to gradually increase in width toward the front (front) is provided. The front end (tip) of the other inner bottom plate 7 is provided with a concave portion 7b formed so as to gradually narrow toward the front (front side) corresponding to the shape of the convex portion 7a.

  Inner flaps 8 are connected to the rear end edges (upper end edges) of the outer plates 6 and 6 via crease lines f, respectively. The inner flaps 8 and 8 are provided with insertion portions 9 and 9 each having a rectangular cutout hole. At the rear end edges of the respective insertion portions 9, 9, presser pieces 9 a extending toward the front are respectively provided continuously through a crease line g.

  A front outer flap 10 is connected to the front edge (upper edge) of the front plate 4 via a crease line h. Inner plates 11 are connected to the left and right side edges of the front plate 4 via crease lines i, respectively. The inner plates 11 and 11 are provided with handle holes 11a and 11a, respectively, at positions corresponding to the handle holes 6a formed in the outer plate 6.

  An insertion piece 12 is connected to the front edge (upper edge) of the inner plate 11 via a crease line j. The width of the insertion piece 12 in the left-right direction is set slightly smaller than the width of the insertion portion 9 in the left-right direction, and protrudes in the left-right direction at the front portion (tip portion) of the left and right side edges of the insertion piece 12. A protrusion 12a is provided.

  Next, assembly of the assembly box 1 of the first embodiment will be described with reference to FIGS. 2 to 5. First, as shown in FIG. 3, the rear plate 3 is bent with respect to the bottom plate 2 along the crease line a, and the outer plate 6 is bent with respect to the inner bottom plate 7 along the crease line e. Then, the outer plates 6 and 6 are folded inward along the crease line d so as to be perpendicular to the rear plate 3. At this time, the inner bottom plates 7 are disposed on the inner surface (upper surface) of the bottom plate 2.

  And as shown in FIG. 4, the convex part 7a and the recessed part 7b are engaged. In 1st Embodiment, the convex part 7a and the recessed part 7b correspond to the engaging part of this invention. In addition, the engaging part of this invention is not restricted to the shape shown in 1st Embodiment, For example, it is good also as a shape corresponding to the disk shape of a convex part which forms a convex part in a disk shape.

  Next, as shown in FIG. 5, the inner plate 11 is folded inward along the fold line i so as to be perpendicular to the front plate 4, and the crease line b is set so that the front plate 4 stands up with respect to the bottom plate 2. Bend inward. At this time, the inner plate 11 is overlaid on the inner surface of the outer plate 6.

  Then, the insertion piece 12 is inserted into the insertion portion 9 so as to push the holding piece 9a outward. When the insertion piece 12 is completely inserted into the insertion portion 9, the holding piece 9 a goes around the inside of the insertion piece 12. Then, as shown in FIG. 1, the pair of protrusions 12 a of the insertion piece 12 is caught on the outer surface of the inner flap 8 in the vicinity of the outer edge of the insertion portion 9, thereby preventing the insertion piece 12 from coming out of the insertion portion 9. . Further, since the holding piece 9a also prevents the insertion piece 12 from moving to the inside of the inner flap 8, the insertion piece 12 is more reliably prevented from coming out of the insertion portion 9.

  According to the assembly box 1 of the first embodiment, the insertion piece 12 connected to the upper end edge of the inner plate 11 is inserted into the insertion portion 9 provided in the inner flap 8 so that the inner plate 11 is inserted. It is fixed to the outer plate 6 via the piece 12, the insertion portion 9, and the inner flap 8. Thereby, according to the assembly box 1 of this embodiment, even if the inner flap 8 and the outer flaps 5 and 10 above the assembly box 1 are kept open, the front plate 4 can be prevented from falling forward.

  In the assembly box 1 of the first embodiment, the inner flap 8 is connected to the rear end edge (upper end edge) of the outer plate 6, and the insertion piece 12 is connected to the front end edge (upper end edge) of the inner plate 11. Although what was described was demonstrated, the structure of this invention is not restricted to this. For example, the inner flap may be connected to the upper edge of the inner plate, and the insertion piece may be connected to the upper edge of the outer plate. In this case, the insertion portion may be provided on the inner flap that is connected to the inner plate.

  The presser piece 9a may be omitted. In the case of omitting the pressing piece, the dimension of the insertion portion in the front-rear direction in FIG. 2 may be made smaller than the dimension of the insertion piece in the front-rear direction. Thereby, when an insertion piece is inserted in an insertion part, the front-end | tip part of an insertion piece can be hooked on the outer surface of the inner flap near the outer edge of an insertion part.

[Second Embodiment]
Next, with reference to FIGS. 6-8, the assembly box 1 'of 2nd Embodiment of this invention is demonstrated. In addition, about the structure same as the assembly box 1 of 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. The assembly box 1 ′ of the second embodiment shown in FIG. 6 is formed of a substantially rectangular parallelepiped, and is formed by punching a single packaging board such as cardboard into the shape shown in FIG. In FIG. 6, the outer flaps 5 and 10 and the inner flaps 81 and 82 of the assembly box 1 ′ are shown in an open state.

  Referring to the development view of FIG. 7, in the assembly box 1 ′ of the second embodiment, the first inner flap 81 is continuously provided on the rear end edges (upper end edges) of the outer plates 6 and 6 via the crease line f. ing. The first inner flap 81 is provided with a substantially U-shaped cut line 81a. By inserting the cut line 81a in the plate thickness direction, the insertion piece 12 whose outer side in the left-right direction is connected to the first inner flap 81 via the crease line k is moved from the first inner flap 81 in the plate thickness direction. It is formed in a protruding state.

  A second inner flap 82 is connected to the front edge (upper edge) of the inner plate 11 via a crease line l. The second inner flap 82 is provided with insertion portions 9 and 9 each having a rectangular cutout hole, which are located at positions corresponding to the insertion pieces 12. A presser piece 9a extending inward in the left-right direction is connected to the outer edge of each insertion portion 9, 9 in the left-right direction via a crease line m.

  All other configurations are the same as those of the assembly box 1 of the first embodiment.

  Next, the assembly of the assembly box 1 'of the second embodiment will be described with reference to FIG. First, the rear plate 3 is bent with respect to the bottom plate 2 along the crease line a, and the outer plate 6 is bent with respect to the inner bottom plate 7 with the crease line e to stand. Then, the outer plates 6 and 6 are folded inward along the crease line d so as to be perpendicular to the rear plate 3. At this time, the inner bottom plates 7 are disposed on the inner surface (upper surface) of the bottom plate 2.

  And the convex part 7a and the recessed part 7b are engaged. Also in 2nd Embodiment, the convex part 7a and the recessed part 7b correspond to the engaging part of this invention. In addition, the engaging part of this invention is not restricted to the shape shown in 2nd Embodiment, For example, it is good also as a shape corresponding to the disk shape of a convex part which forms a convex part in a disk shape.

  Next, as shown in FIG. 8, the inner plate 11 is folded inward along the fold line i so as to be perpendicular to the front plate 4, and the crease line b is set so that the front plate 4 stands up with respect to the bottom plate 2. Bend inward. At this time, the inner plate 11 is overlaid on the inner surface of the outer plate 6. The second inner flap 82 is also overlapped with the inner surface of the first inner flap 81.

  And the insertion piece 12 is inserted in the insertion part 9 so that the pressing piece 9a may be extruded inside. When the insertion piece 12 is completely inserted into the insertion portion 9, the holding piece 9 a goes around the outside of the insertion piece 12. Then, as shown in FIG. 6, the pair of protrusions 12 a of the insertion piece 12 is caught on the inner surface of the second inner flap 82 in the vicinity of the outer edge of the insertion portion 9, and the insertion piece 12 comes out of the insertion portion 9. To prevent. Further, since the holding piece 9a also prevents the insertion piece 12 from moving to the outside of the second inner flap 82, the insertion piece 12 is more reliably prevented from coming out of the insertion portion 9.

  According to the assembly box 1 ′ of the second embodiment, the insertion plate 12 provided in the first inner flap 81 is inserted into the insertion portion 9 provided in the second inner flap 82, whereby the inner plate 11 is moved. The second inner flap 82 and the insertion portion 9, the insertion piece 12, and the first inner flap 81 are fixed to the outer plate 6. Thereby, according to the assembly box 1 ′ of the present embodiment, the front plate 4 can be prevented from falling forward even when the inner flaps 81, 82 and the outer flaps 5, 10 above the assembly box 1 are left open. .

  In the assembly box 1 'of the second embodiment, the insertion piece 12 is provided in the first inner flap 81 and the insertion portion 9 is provided in the second inner flap 81, but the configuration of the present invention is the same. Not limited to. For example, the insertion portion may be provided on the first inner flap, and the insertion piece may be provided on the second inner flap.

  The presser piece 9a may be omitted. When the pressing piece is omitted, the horizontal dimension of the insertion portion in FIG. 7 may be made smaller than the horizontal dimension of the insertion piece. Thereby, when an insertion piece is inserted in an insertion part, the front-end | tip part of an insertion piece can be hooked on the inner surface of the 2nd inner flap near the outer edge of an insertion part.

DESCRIPTION OF SYMBOLS 1,1 '... Assembly box, 2 ... Bottom plate, 3 ... Rear plate, 4 ... Front plate, 5 ... Rear outer flap, 6 ... Outer plate, 6a ... Handle hole, 7 ... Inner bottom plate, 7a ... Convex part, 7b ... Recessed portion, 8 ... inner flap, 81 ... first inner flap, 81a ... notch line, 82 ... second inner flap, 9 ... insertion portion, 9a ... presser piece, 10 ... front outer flap, 11 ... inner plate, 11a ... Handle hole, 12... Insert piece, 12 a... Projection, a, b, c, d, e, f, g, h, i, j, k, l, m.

Claims (2)

A rear plate connected to the rear edge of the rectangular bottom plate is raised with respect to the bottom plate;
Outer plates are connected to the left and right side edges of the rear plate, respectively.
An inner bottom plate is connected to the lower edge of the outer plate,
Bending the inner bottom plate at a right angle to the inner side with respect to the outer plate,
The outer plate is bent at a right angle inward with respect to the rear plate, and the inner bottom plate is disposed on the bottom plate;
Engaging portions are provided at opposite ends of both inner bottom plates so as to engage with each other,
A rear outer flap is provided on the upper edge of the rear plate,
Standing up the front plate connected to the front edge of the bottom plate with respect to the bottom plate,
A front outer flap is connected to the upper edge of the front plate,
Inner plates are connected to the left and right edges of the front plate,
The inner plate is folded inwardly at right angles to the front plate, and the inner plate is superimposed on the inner surface of the outer plate,
Inner flaps are connected to the upper edge of the outer plate or the inner plate, respectively.
Each of the inner flaps is provided with an insertion portion,
The assembly box characterized by inserting the insertion piece provided in a row at the upper end edge of the inner plate or the outer plate into the insertion portion. A rear plate connected to the rear edge of the rectangular bottom plate is raised with respect to the bottom plate;
Outer plates are connected to the left and right side edges of the rear plate, respectively.
An inner bottom plate is connected to the lower edge of the outer plate,
Bending the inner bottom plate at a right angle to the inner side with respect to the outer plate,
The outer plate is bent at a right angle inward with respect to the rear plate, and the inner bottom plate is disposed on the bottom plate;
Engaging portions are provided at opposite ends of both inner bottom plates so as to engage with each other,
A rear outer flap is provided on the upper edge of the rear plate,
The first inner flaps are connected to the upper edge of the outer plate, respectively.
Standing up the front plate connected to the front edge of the bottom plate with respect to the bottom plate,
A front outer flap is connected to the upper edge of the front plate,
Inner plates are connected to the left and right edges of the front plate,
The inner plate is folded inwardly at right angles to the front plate, and the inner plate is superimposed on the inner surface of the outer plate,
A second inner flap that is overlapped with an inner surface of the first inner flap is connected to an upper end edge of the inner plate, respectively.
One of the first inner flap and the second inner flap is provided with a protruding insertion piece by being pushed in the thickness direction, and the other is provided with an insertion portion into which the insertion piece is inserted. An assembly box characterized by.

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