JP2008155990A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare an inner box 20 within an outer box 10 having a gap t<SB>1</SB>in its all surrounding circumference with a configuration which has not existed conventionally. <P>SOLUTION: While preparing a supplemental piece 31 for securing the above gap t<SB>1</SB>continuously from the ridgeline edge of the inside face of outer box 10 in one side of both the ridgeline edge opposite on a diagonal line in at least the plane view of the inner box 20, a support piece 32 is prepared for securing the above gap t<SB>1</SB>by abutting against the inside face of the outer box 10 by being extended from the side plate 21 of the inner box to the other ridgeline edge. The tip edge is abutted against the side plate 11 of the outer box where the bottom plate 25 of the inner box 20 is fitted between both the leg pieces 37 and 37 by forming a gap t<SB>2</SB>between the bottom plate 25 of the inner box and the bottom plate 15 of the outer box by abutting against a side plate 22 having the supporting piece 32 of the inner box 20 and the leg pieces 37 of both the bottom edges of the side plate 24 opposite to its side plate 22 to the bottom plate 15 of the outer box 10. The inner box 20 becomes one piece object to the outer box 10 through the supplemental piece 31, and the inner box 20 is supported stably within the outer box 10 with three points by abutting against its supplemental piece 31 and the side plate of the outer box of the supporting piece 32 and the bottom plate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a double-structured packaging box in which a rectangular cylindrical inner box is housed in a rectangular cylindrical outer box.

A packaging box composed of this type of inner / outer box is an embodiment in which the inner box is provided with a gap around the entire circumference of the outer box, and a fragile product such as a bottle is placed in the inner box. This reduces the impact on the outer box and prevents the product from being damaged.
In this storage mode, if the inner box moves with respect to the outer box, the buffering action is lowered, and various means have been conventionally considered.

As the movement preventing means, there is one in which a supporting piece of the inner box is provided from the inner surface of the outer box, and the movement of the inner box relative to the outer box is prevented by the supporting piece (see Patent Documents 1 and 2).
JP 2000-168863 A JP 2003-81256 A

The technique described in Patent Document 1 is provided with a tension piece (see reference 5: Reference A2, 51, 53, 55, etc.) at each ridge line edge of the inner box, and the inner box with the four tension pieces. Is supported in a state of stretching in the outer box to prevent movement.
However, each protruding piece is formed by cutting and raising from the side plate, and the formation of the protruding piece by the cutting and raising is complicated and the assembling property is also poor.

In the technique described in Patent Document 2, the opposite ridge line edge of the inner box is a flange piece on the outer box (refer to the one part extending from the symbol e in FIG. 2 to the inner box side, and the one part along the inner surface from the same p). Is bonded to the inner surface of the outer box (see paragraph 2, 0025, lines 2 to 4 etc. of the same document 2), and the inner box is bonded to the outer box at two locations on the diagonal line to prevent movement within the outer box. is doing.
However, the bonding operation to the inner surface of the outer box is troublesome and causes a decrease in assemblability.

  An object of the present invention is to stably support the inner box in the outer box with a configuration different from that of each of the above patent documents, and to improve the assemblability.

In order to solve the above-mentioned problems, the present invention first uses a piece that supports the inner box as opposed to the outer box in the same manner as in the prior art.
This is because, if the flange piece is continuous with the outer box, the inner box becomes an integral part of the outer box via the flange piece, and stable support can be secured.
Next, the support piece that extends from the inner box side plate to the edge of the inner box on the diagonal line of the collar piece and contacts the inner surface of the outer box to secure the gap, as in the conventional case, the point that supports the inner box with respect to the outer box In addition, the bottom plate of the inner box is brought into contact with a side plate different from the outer box side plate with which the support piece abuts.

In this way, the inner box is supported in the outer box with three points which are stable support modes, and the flange piece and the support piece are along the ridgeline of the outer box and the inner box, so that the continuous line or the contact line Is the axial direction of the box, while the bottom plate is perpendicular to the axial direction (vertical direction) of the box (horizontal direction), so the contact line is the perpendicular direction (horizontal direction).
For this reason, the inner box is supported by three points by two points in the vertical direction (two-line contact) and one point in the horizontal direction (one-line contact) with respect to the outer box. The three-point support (three-line contact support) having a different support direction is more stable than the three-point support (three-line contact support) in the same direction. This is because different resistance is generated against the external force to the outer box.

  As described above, the present invention supports the inner box with respect to the outer box with three points having a configuration different from the conventional one, so that the support is stable and has a high buffering effect. For this reason, the goods stored in the inner box can be packaged stably.

  As one embodiment of the present invention, it is a packaging box comprising a rectangular cylindrical inner box similar to a rectangular cylindrical outer box, and the inner box is provided in the outer box with a gap around its entire circumference. The inner box is provided with a flange for securing the gap continuously from the ridge line edge on the inner surface of the outer box on one of the ridge line edges facing each other on at least a diagonal line in plan view, and from the inner box side plate to the other ridge line edge. A supporting piece that extends and abuts against the inner surface of the outer box to secure the gap is provided, and the bottom edges of the opposite side plates of the inner box are extended to form leg pieces, and the leg pieces abut against the bottom plate of the outer box. Thus, it is possible to adopt a configuration in which a gap is formed between the inner box bottom plate and the outer box bottom plate, the bottom plate of the inner box is fitted between the leg pieces, and the tip edge is in contact with the outer box bottom plate.

  In this configuration, the inner box bottom plate is restrained from moving downward by being fitted into both leg pieces, but in order to prevent the movement, the bottom plate may be glued to the leg piece or the outer box side plate. If the gluing is troublesome, leg pieces that extend downward also on the edge of the bottom plate and come into contact with the inner surface of the bottom plate of the outer box are provided to prevent the inner box bottom plate from moving downward, and the bottom plate and the outer box bottom plate Ensure a gap of

In these configurations, there is a case where it is not necessary to cushion the upper part of the stored product. In this case, the lid of the outer box is also used as the lid of the outer box.
However, if it is necessary to cushion the upper part of the stored product, a lid plate that is foldably connected to the upper edge of one side plate of the inner box is provided, and the upper edge of the side plate on both sides of the one side plate is provided. Extending above the cover plate, the extended piece abuts the inner surface of the cover plate of the outer box, forming a gap between the cover plate of the inner box and the outer box, and the cover between the extended pieces. It is assumed that the plate is fitted.
In this way, a gap is formed between the inner box cover plate and the outer box cover plate in the lid (upper surface) portion of the inner box as well as the bottom (lower surface) portion. .
Even when a cover plate is provided on the inner box, if a protrusion is provided on the edge of the inner box cover plate that extends upward and contacts the outer box cover plate, the gap between the inner box cover plate and the outer box cover plate Can be ensured.

The packaging box having these configurations can be made of various materials such as plastic and paper, but paper is preferable as an inexpensive and environmentally friendly product.
In the case of the paper, for example, the outer box is made of a paper blank in which the front plate, the left and right side plates, the side plates and the bottom plate of the back plate, and the cover plate are continuously provided via the folding lines,
The inner box is provided with the left side plate and the side plate of the front plate continuously on the left edge of the outer case blank via a support piece, and the right side plate of the outer case blank and the side plate of the back plate are supported on the right edge of the outer box blank. Provided continuously through a piece, a bottom plate is provided continuously on one lower edge of each side plate via a fold line, and the support piece is provided on at least one of the front plate and the back plate of the inner box, Both support pieces are connected to the outer box blank and the inner box blank through a fold line, and the bottom edges of the opposite side plates of the inner box are extended to be provided with leg pieces and sandwiched between the side plates. What consists of a paper-made blank in which the baseplate was continuously provided from the lower edge of the side plate via the folding line can be adopted.

As an assembling method of the packaging box comprising the blank of this configuration, first, the outer box blank is folded through a fold line at the center in the continuous direction of each side plate of the front plate, the left and right side plates, and the back plate, The left side plate and the front plate blank and the right side plate and the back plate blank are folded from the outer box blank through the fold line through the fold lines, and the inner box front and right sides are folded. While joining the abutting edge of a face plate, both the support pieces are overlap-joined to form the flange piece.
Next, the front plate and the right side plate of the outer box and the inner box are bent through the fold line, and the back plate and the left side plate are bent through the fold line, and the outer box and the inner box are each formed into a square tube shape. The support piece is brought into contact with the outer box side plate, and the bottom plate of the inner box is fitted between the leg pieces so that the tip edge is brought into contact with the outer box side plate, and the bottom plate of the outer box is placed through the folding line. The inner box is stored in the outer box with a gap over the entire periphery of the inner box with the both abutments and the flange piece, and the leg pieces are brought into contact with the bottom plate of the outer box. By this contact, a gap is formed between the inner box bottom plate and the outer box bottom plate to assemble a double-structure packaging box consisting of inner and outer boxes.

As another assembling method of the packaging box composed of the blank of this configuration, first, the left side plate and the front plate blank and the right side plate and the back plate blank of the inner box are folded from the outer box blank through a folding line. Each of the support pieces is bent through each fold line, and the front plate is bent to the left side plate, and the back plate is bent to the right side plate through the fold line to form a square cylinder, The abutting edges of the back plate are joined to form an inner box.
Next, the front plate, the left and right side plates, and the back plate of the outer box are folded around the inner box into a square tube shape via a fold line, and both continuous support pieces are overlapped and joined. The outer box is formed as a flange piece, the supporting piece is brought into contact with the outer box side plate, the bottom plate of the inner box is fitted between the leg pieces, and the leading edge thereof is brought into contact with the outer box side plate. The inner box is housed in the outer box with a gap around the entire circumference in the outer box with the abutment and the flange piece, and both leg pieces are brought into contact with the inner surface of the bottom plate of the outer box, and by the contact, the inner box bottom plate A method of assembling a double-structured packaging box composed of inner and outer boxes by forming a gap between the outer box and the outer box bottom plate can also be adopted.

Further, as another configuration, the outer box is made of a paper blank in which the front plate, the left and right side plates, the side plates and the bottom plate of the back plate, and the cover plate are continuously provided via the folding lines, On the left edge or right edge of this paper blank, the above-mentioned hook piece is continuously provided via a broken line,
Similarly, the inner box is provided with the front plate, the left and right side plates, the side plates of the back plate and the bottom plate continuously provided through the folding lines, and the outer box blank of the outer box blank through the folding lines. A pair of support pieces of the same size are continuously provided via a fold line on the edge of the ridge line which is provided continuously on the side edge and is opposed to the diagonal line in plan view of the flange of the inner box. The support piece is continuous through the fold line,
The bottom edge of the opposite side plates of the inner box is extended to have leg pieces, and the paper blank is provided with the bottom plate continuously from the lower edge of the side plate sandwiched between the side plates via a fold line. Can be used.

As a method of assembling a packaging box composed of a blank having this structure, first, the inner box is bent so that the pair of support pieces overlap with each other via a fold line, and is used as the support piece. The front plate, the left and right side plates, and the back plate are bent into a square tube shape through each folding line, and the abutting edges are joined to each other, and the bottom plate of the inner box is fitted between the leg pieces.
Next, the outer box is folded around the inner box, and the front plate, the left and right side plates, and the rear plate are folded through the folding lines with respect to the flange piece continuous therewith to form a rectangular tube shape. The edge is joined, and the leading edge of the support piece and the bottom plate of the inner box is brought into contact with the outer box side plate, and the bottom plate of the outer box is bent through a fold line to close the bottom surface. With the flange, the inner box is stored in the outer box with a gap all around it, and both the leg pieces are brought into contact with the bottom plate of the outer box, and by the contact, the outer box and the outer box are separated from the outer box. There is a method of assembling a double-structured packaging box composed of inner and outer boxes by forming a gap between box bottom plates.

In both configurations, as described above, if a leg piece is provided on the edge of the bottom plate so as to extend downward and come into contact with the inner surface of the bottom plate of the outer box, the lower movement of the inner box bottom plate is prevented. A gap with the outer box bottom plate can be reliably secured.
Similarly, in these configurations, there is a case where it is not necessary to cushion the upper part of the stored product. In that case, the lid of the outer box can also be used as the cover of the upper surface of the inner box. When it is necessary to cushion the upper part, a lid plate that is foldably connected to the upper edge of the side plate of the inner box is provided, and the upper edge of the side plate on both sides of the one side plate extends above the lid plate. The extending piece is in contact with the inner surface of the cover plate of the outer box to form a gap between the cover plate of the inner box and the outer box, and the cover plate is fitted between the extended pieces. And similar effects can be obtained.
Similarly, when the inner box is provided with a cover plate, the inner box cover plate and the outer box cover can be provided by providing a projecting piece that extends upward at the edge of the inner box cover plate and comes into contact with the outer box cover plate. A gap with the plate can be reliably ensured.

  1, 2, 3 (a) to 3 (h) and FIG. 4, an outer box 10 includes a front plate 11, left and right side plates 12 and 13, and side plates and a bottom plate of a back plate 14. 15 and the cover plate 16 is made of a paper blank provided continuously through the folding lines r. Flap pieces 17, 17, 18, 18 are further provided continuously on the upper and lower edges of the left and right side plates (side plates) 12, 13 through fold lines r, respectively, and insertion pieces 19 a, 19b is provided continuously via the folding line r.

The inner box 20 is provided with the side plates of the left side plate 22 and the front plate 21 continuously on the left edge of the outer box blank with the fold line r as a boundary via the support 31b, and on the right edge of the outer box blank. The side plates of the back plate 24 and the right side plate 23 are continuously provided with the folding line r as a boundary via the support piece 31a, and the bottom plate 25 and the cover plate 26 are folded on the upper and lower edges of the back plate (side plate) 24. Through a paper blank provided continuously.
The front plate 21 of the inner box 20 is provided with one support piece 32a continuously, and the other support piece 32b is also provided continuously on the right side plate 23 via a folding line r.
Leg pieces 33, 34, 35, and 36 are provided via fold lines r on three sides (edges) excluding the continuous edge between the bottom plate 25 and the back plate 24 of the lid plate 26.

A method of assembling a single paper blank (carton) in which the outer box 10 and the inner box 20 are integrated into a double box will be described. First, in the flat blank of FIG. After applying glue to 31b and both support pieces 32a and 32b, as shown in FIG. 4B, the front plate 11, the left and right side plates 12 and 13, and the back plate of the outer box 10 are connected via the folding lines r. 14 and the left side plate 22, front plate 21, back plate 24, and right side plate 23 of the inner box 20 are folded inward, and one support piece 32a of the inner box 20 is folded at a folding line r as shown in FIG. After being bent, the other support piece 32b is glued (joined). The supporting pieces 32 a and 32 b form the supporting pieces 32 that support the inner box 20 by abutting against the inner surface of the outer box 10.
3A to 3F show the packaging box P viewed from the bottom side (lower side), and FIGS. 3G to H show the packaging box P viewed from the lid side (upper side). Show. Further, the paste may be applied while assembling.

From the state of FIG. 3 (c), as shown in FIG. 3 (d), the left side plate 22 and the back plate 24 are folded with respect to the respective support pieces 31a, 31b folded from the outer box blank via the folding line r. Each side plate 21, 22, 23, 24 of the inner box 20 is formed into a rectangular tube shape while being bent through the line r.
Along with the formation of the rectangular box shape of the inner box 20, the opposing surfaces of both support pieces 31a and 31b are glued (joined with glue applied in advance) to form the outer box 10 into a square cylinder shape. A gutter piece 31 that connects the outer box 10 to the inner box 20 is formed by gluing the support pieces 31a and 31b.
As the inner box 20 and the outer box 10 are assembled into a rectangular tube shape, the leading edge of the support piece 32 contacts the inner surface of the left side plate 12 of the outer box 10 over the entire length.

After the inner box 20 and the outer box 10 are assembled into a rectangular tube shape, as shown in FIG. 3 (e), the bottom plate 25 of the inner box 20 is moved upward with its leg pieces 33 and 35 through the folding line r. It is fitted between both leg pieces 37 and 37 which consist of the lower edge part of the right and left side plates 22 and 23 in the state bent in the direction. The leg pieces 33, 35 of the bottom plate 25 and the leg pieces 37 of the left and right side plates 22, 23 constitute the legs of the inner box 20, and the bottom plate 15 of the outer box 10 is flapped as shown in FIG. by blocking through the strip 19a, the respective leg 33, 35 and 37 are in contact with the bottom plate 15 to form a gap _{t 2} between the inner box bottom plate 25 and the outer casing bottom plate 15 (see FIG. 3h) .

The bottom plate 25 of the inner box 20 is longer than the length of the support piece 32 (vertical length in FIG. 2) and the width of the left and right side plates 22, 23 (horizontal length in FIG. 2). When the bottom plate 25 is fitted between the leg pieces 37, 37, the front edge of the bottom plate 25 abuts against the front plate 11 of the outer box 10 along its entire length.
The bottom plate 25 comes into contact with the outer case front plate 11, the tip edge of the support piece 32 comes into contact with the left side plate 12 of the outer case 10, and the flange 31 continuous to the outer case 10, so box 20 is housed with a clearance t ₁ over its around the entire circumference in the outer box 10.
Thereafter, as shown in FIG. 3 (f), the insertion piece 19 a of the bottom plate 15 is inserted between the left and right side plates 12 and 13 of the outer box 10, and the bottom surface is closed with the bottom plate 15.

  In this state (the state of FIG. 3 (f)), since the flange 31 is continuous with the outer box 10, the inner box 20 is integrated with the outer box 10 through the flange 31. Stable support. Further, the inner box 20 is supported in the outer box 10 with three points which are stable support modes, and the collar piece 31 and the support piece 32 are along the ridge lines of the outer box 10 and the inner box 20, so that the continuous line or The contact line is in the axial direction of the box, while the bottom plate 25 is perpendicular (horizontal direction) to the axial direction (vertical direction) of the box, so that the contact line is in the vertical direction (horizontal direction). For this reason, the inner box 20 is supported with respect to the outer box 10 by three points including two points in the vertical direction and one point in the horizontal direction. The three-point support with different support directions is more stable than the three-point support in the same direction.

If this inner box 20 is a double box provided in the outer box 10, as shown in FIG. 1, the product B is put in the inner box 20, and the bottom plate of the inner box 20 is shown in FIG. 3 (g). 25, both extending pieces 38, 38 composed of upper edge portions of the left and right side plates 22, 23 in a state in which the leg pieces 34, 36 are folded upward via a folding line r. Fit between. The protruding pieces of the inner box 20 are constituted by the leg pieces 34 and 36 of the lid plate 26 and the extending pieces 38 of the left and right side plates 22 and 23, and as shown in FIG. By inserting the insertion piece 19b of the cover plate 16 between the left and right side plates 12 and 13 and closing it with the cover plate 16, the projecting pieces 34, 36 and 38 abut against the cover plate 16, A gap t ₃ is formed between the box cover plate 26 and the outer box cover plate 16.

  Similarly, the cover plate 26 of the inner box 20 is longer than the length of the support piece 32 (the length in the left-right direction in FIG. 1) and the width of the left and right side plates 22, 23. By fitting between the projecting pieces (extending pieces) 38, 38, the front end edge of the cover plate 26 comes into contact with the front plate 11 of the outer box 10 with its entire length. By the contact of the cover plate 26, the contact of the bottom plate 25 with the outer case front plate 11 and the contact of the tip edge of the support piece 32 with the left side plate 12 of the outer case 10 and the outer case 10 are continued. The three-point support by the piece 31 is reinforced.

  The above assembling method is only an example, and various kinds of assembling can be adopted up to the embodiment shown in FIG. 3D. For example, first, similarly, in the flat blank of FIG. After applying glue to 31a, 31b and both support pieces 32a, 32b, as shown in FIG. 5A to FIG. 5B, the outer box blank is attached to each of the side plates of the front plate 11, the left and right side plates 12, 13, and the back plate 14. While folding through the fold line r at the center in the continuous direction, the blanks of the left side plate 22 and the front plate 21 and the blanks of the right side plate 23 and the back plate 24 of the inner box 20 were folded from the outer box blank through the fold line r. The support pieces 31a and 31b are bent through the fold lines r.

  Next, as shown in FIG. 5B to FIG. 5C, the support pieces 32a and 32b are glued to join the abutting edges of the front plate 21 and the right side plate 23 of the inner box 20, and the both support pieces. 31a and 31b are overlapped and bonded to form a folded state in which the collar piece 31 is formed.

  From this folded state, as shown in FIG. 3d, the front plates 11, 21 and the right side plates 13, 23 of the outer box 10 and the inner box 20 are connected as shown in FIG. The back plate 14, 24 and the left side plate 12, 22 are bent through the fold line r, and the outer box 10 and the inner box 20 are each formed into a rectangular tube shape, and the support piece 32 is removed from the outside. It is brought into contact with the box side plate 12.

Thereafter, as shown in FIGS. 3e to h, the same assembly is performed, the bottom plate 25 of the inner box 20 contacts the outer box front plate 11, and the leading edge of the support piece 32 contacts the left side plate 12 of the outer box 10. It is assumed that the inner box 20 is accommodated in the outer box 10 with the gap t ₁ all around the outer box 10 by the flange 31 which is in contact with the outer box 10 and is inserted into the bottom plate 15. The piece 19 a is inserted between the left and right side plates 12, 13 of the outer box 10, and the bottom surface is closed with the bottom plate 15.

  As can be understood from the procedure from FIG. 5a to FIG. 5b and further to FIG. 5c, this assembling method has the same length in the left-right direction with the central fold line r as the boundary. Automatic assembly is easy, and the cost of the packaging box can be reduced.

6 and 7 show another embodiment. In this embodiment, the lid plate 26 of the inner box 20 is omitted in the above embodiment, and each side plate of the inner box 20 (front plate 21, left and right side plates). 22, 23, and the back plate 24) are extended until the top edge of the outer plate 10 abuts on or close to the lid plate 16 of the outer box 10. The extended pieces 38a are newly provided on the front plate 21 and the back plate 24 with respect to the above embodiment, and the left and right side plates 22 and 23 are provided with the protruding pieces 38 and 38, respectively. It is formed.
This embodiment can be assembled by at least the above two procedures similar to the above embodiment except for the assembly of the lid plate 26 portion of the inner box 20.

FIGS. 8 to 13 show modifications of the embodiment of FIGS. 1 and 6, and FIGS. 8, 9A to 9D, and FIG. An inner box blank in which a left side plate 22, a front plate 21, a right side plate 23, and a back plate 24 are continuously provided on the right edge of the blank constituting the outer box 10 is continuously provided.
In this embodiment, both support pieces 32a and 32b are continuous via the fold line r, and a support piece 31c is further provided continuously on the inner box back plate 24 via the fold line r.
As shown in FIG. 9 (a) to FIG. 9 (d), when this blank is used, the support pieces 32a and 32b are folded to form a support piece 32 that comes into contact with the right side plate 13 of the outer box 10, Further, the support piece 31c of the inner box back plate 24 is further glued to the flange piece 31 to which the support pieces 31a and 31b at both ends of the outer box blank are glued, or is interposed and glued between the both support pieces 31a and 31b. Except for this point, the assembling procedure can be the same as FIG. 3a to FIG.

10, 11 (a) to 11 (b), and FIG. 13 are the left side plate 22, the front plate 21, and the right side plate 23 on the left side edge of the blank constituting the outer box 10 in the embodiment of FIGS. 1 and 6. And the inner box blank which provided the backplate 24 continuously is provided continuously. Also in this embodiment, both support pieces 32a and 32b are continuous via the fold line r, and a support piece 31c is further provided on the inner box left side face plate 22 via the fold line r.
As shown in FIG. 11 (a) to FIG. 11 (b), both support pieces 32a and 32b are folded to form the blank on the right side plate 13 of the outer box 10, as in the embodiment of FIG. The point which makes the support piece 32 to contact, and the support piece 31c of the inner box back plate 24 are further glued to the collar piece 31 to which the support pieces 31a and 31b at both ends of the outer box blank are glued, or both the support pieces 31a and 31b. The assembly procedure can be the same as that in FIG. 3a to FIG. 3h of the embodiment of FIG.

  In the embodiments shown in FIGS. 8, 10, 12 and 13, as shown in FIGS. 5a to c, the inner box is connected to the outer box blank via the boundary line r. The blank is bent, and then each side plate of the inner box 20 and the outer box 10 is bent into a square tube shape via the fold line r, and the support pieces 31a, 31b, 31c are joined to form the embodiment shown in FIG. 3d. be able to.

In each of the above embodiments, one side plate is also formed on the ridge line edge (the ridge line edge of the front plate 21 and the left side plate 22 and the ridge line edge of the back plate 24 and the right side plate 23) of the inner box 20 that does not have the support piece 32 and the flange piece 31. The inner box 20 can be supported by surrounding four sides by forming the supporting pieces by cutting and raising each of the inner box 20.
Further, the leg pieces 33 and 35 of the inner box bottom plate 25 can be omitted. At this time, the omission of the leg pieces may be the leg pieces 33 on both sides of the bottom plate 25 or the leg pieces 35 at the leading edge. That is, one or two of the three leg pieces 33, 33, 35 can be selected as appropriate. In this respect, the protrusions 34 and 36 can be omitted as appropriate for the cover plate 26 as well.

  The packaging box blanks shown in FIG. 2, FIG. 7, FIG. 8, FIG. 10, FIG. 12, and FIG. The front surface of the figure is the front or back surface of the packaging box.

The perspective view which opened the cover of one Example Development view of the same example Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment (A) is the cut-out plan view in FIG. 3h of the same Example, (b) is the cut front view. Other assembly explanatory drawings of the same embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment The perspective view which opened the lid of other examples Development view of the same example Development view of another embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Development view of another embodiment Assembly explanatory diagram of the embodiment Assembly explanatory diagram of the embodiment Development view of another embodiment Development view of another embodiment

Explanation of symbols

10 Outer box 11 Outer box front plate (side plate)
12 Outer box left side plate (side plate)
13 Outer box right side plate (side plate)
14 Outer box back plate (side plate)
15 Outer box bottom plate 16 Outer box cover plates 17 and 18 Outer box flap pieces 19a and 19b Insertion piece 20 Inner box 21 Inner box front plate (side plate)
22 Inner box left side plate (side plate)
23 Inner box right side plate (side plate)
24 Inner box back plate (side plate)
25 Inner box bottom plate 26 Inner box cover plate 31 Hanger pieces 31a, 31b Supporting pieces 32, 32a, 32b supporting pieces 33, 35, 37 Leg pieces 34, 36 Protruding pieces 38, 38a Extending piece P Packaging box B Product (bottle)
r Folding line

Claims (9)

It is a packaging box (P) consisting of a rectangular cylindrical inner box (20) as well as a rectangular cylindrical outer box (10), and the inner box (20) is placed around the circumference of the outer box (10). The gap (t ₁ ) is provided across the ridge line edge of the inner surface of the outer box (10) to one of the ridge line edges facing each other at least on the diagonal line of the inner box (20). gore strips to ensure t ₁₎ provided with a (31), support to secure the outer casing extends from the inner box side plate to another ridge edge (21) and (10) in contact with the gap on the inner surface (t ₁₎ Provide a piece (32),
In addition, the bottom edges of the opposing side plates (22, 23) of the inner box (20) are extended to form leg pieces (37, 37), and the leg pieces (37) are attached to the bottom plate (15) of the outer box (10). A gap (t ₂ ) is formed between the inner box bottom plate (25) and the outer box bottom plate (15) by contact, and the bottom plate (25) of the inner box (20) is interposed between the leg pieces (37, 37). A packaging box characterized by being fitted and having a leading edge abutting against the outer box side plate (11).   2. The packaging box according to claim 1, wherein leg pieces (33, 35) are provided on the edge of the inner box bottom plate (25) so as to extend downward and come into contact with the bottom plate (15) of the outer box (10). And packaging box. The packaging box according to claim 1 or 2, wherein the inner box (20) has a cover plate (26) that is foldably connected to an upper edge of one side plate (24). The upper edges of the side plates (22, 23) on both sides of the side plate (24) extend above the lid plate (26), and the extending piece (38) abuts on the lid plate (16) of the outer box (10). Thus, a gap (t ₃ ) is formed between the cover plate (26) of the inner box (20) and the cover plate (16) of the outer box (10), and between the extending pieces (38, 38). The packaging box, wherein the lid plate (26) is fitted.   4. The packaging box according to claim 3, wherein protrusions (34, 36) are provided on the edge of the inner box cover plate (26) so as to extend upward and come into contact with the outer box cover plate (16). Packaging box. In the outer box (10), the front plate (11), the left and right side plates (12, 13), the side plates and the bottom plate (15) of the back plate (14), and the cover plate (16) each fold line (r). Consisting of a paper blank provided continuously through,
The inner box (20) is provided with the left side plate (22) and the side plate of the front plate (21) continuously on the left edge of the outer box blank via a support piece (31b) at the right edge of the outer box blank. The side plate of the back plate (24) and the right side plate (23) is continuously provided on the edge via the support piece (31a), and the bottom plate (25) is folded on the bottom edge of one of the side plates (r). The support piece (32a) is provided on at least one of the front plate (21) and the back plate (24) of the inner box (20), and both the support pieces (31a, 31b) are folded. It continues to the outer box blank and the inner box blank via the line (r),
Further, the bottom edges of the opposing side plates (22, 23) of the inner box (20) are extended to be provided with leg pieces (37), and the side plates (24) sandwiched between the side plates (22, 23). The packaging box according to claim 1, comprising a paper blank provided with a bottom plate (25) continuously from the lower edge via a fold line (r). In the outer box (10), the front plate (11), the left and right side plates (12, 13), the side plates and the bottom plate (15) of the back plate (14), and the cover plate (16) each fold line (r). Comprising the paper blank provided continuously through, the left edge or the right edge of the paper blank is provided with the collar piece (31a, 31b) continuously through the broken line r,
Similarly, in the inner box (20), the front plate (21), the left and right side plates (22, 23), the side plates of the back plate (24) and the bottom plate (25) are connected via the folding lines (r). A plan view of the flange piece (31a) of the inner box (20) provided continuously to the side edge of the outer box blank via a broken line r on the flange piece (31a, 31b). A pair of support pieces (32a, 32b) of the same size are continuously provided via fold lines (r) at the edges of the ridges facing each other on the diagonal line, and the pair of support pieces (32a, 32b) are folded. Continuous through line (r),
Further, the bottom edges of the opposing side plates (22, 23) of the inner box (20) are extended to be provided with leg pieces (37), and the side plates (24) sandwiched between the side plates (22, 23). The packaging box according to claim 1, comprising a paper blank provided with the bottom plate (25) continuously from the lower edge via a fold line (r).   A pair of support pieces (32a, 32b) are continuously provided via a fold line (r) on the edge of the inner box (20) which does not have the support piece (32), and both support pieces (32a, 32a, The packaging box according to claim 5 or 6, characterized in that a support piece (32) obtained by folding 32b) through a fold line (r) is brought into contact with the inner surface of the outer box (10).   The leg piece (33, 35) according to any one of claims 4 to 7, further comprising a leg piece (33, 35) that extends downward and contacts the bottom plate (15) of the outer box (10) at the edge of the inner box bottom plate (25). Characteristic packaging box. 9. The inner plate (20) according to any one of claims 4 to 8, wherein the inner box (20) has a cover plate (26) that is foldably connected to an upper edge of the one side plate (24). Protruding pieces (38) extending toward the outer box lid plate (16) are provided on the upper edges of the side plates (22, 23) on both sides of (24), and the protruding pieces (38) are the outer box lid plates (16). A gap (t ₃ ) is formed between the inner box cover plate (26) and the outer box cover plate (16), and the cover plate (26) is fitted between the projecting pieces (38). A packaging box characterized by

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