JP3194311U - Bookcase / packaging box sheet and bookcase / packaging box - Google Patents

Abstract

The present invention provides a bookcase / packaging box sheet and a bookcase / packaging box that can be used as a booklet packaging box and also used as a bookcase for preventing the booklet from toppling over. A bookcase / packaging box sheet can be assembled into a box shape having a rectangular cylindrical portion constituting a top plate 2 and a bottom plate 6 facing each other and a pair of side plates 3 facing each other, and folded on the inner surface of the top plate. An upper flap 23 connected to the front edge of the top plate as possible, a lower flap 24 connected to the front edge of the bottom plate so as to be folded back to the inner surface of the bottom plate, and a side flap of the side plate capable of being folded back to the inner surface of one side plate. A book end plate 22 connected to the front edge, and the book end plate is formed in a first fold easy line 34 formed in parallel with a boundary line with one side plate, and on the tip side of the first fold easy line. A first locking portion 41, 43 having a pair of engaging portions 37, 38 formed on the upper edge and the lower edge, the upper flap and the lower flap being engageable with the pair of engaging portions of the book end plate. Have [Selection] Figure 2

Description

  The present invention relates to a bookcase / packaging box sheet and a bookcase / packaging box.

  Conventionally, a packaging box for packing a booklet such as a catalog or a pamphlet is known. Further, as such a packaging box, a box formed by assembling corrugated cardboard sheets is known. Such a packaging box is used, for example, for transporting a booklet such as a catalog or a pamphlet, and is discarded after the booklet is taken out.

  On the other hand, a booklet taken out from such a packaging box is usually stored in a flat stack or stored again in a book case prepared separately.

  However, such a booklet, when stored flat, looks bad and can be accidentally discarded or lost. In addition, such a booklet is often larger than A4 and has a relatively large thickness, so that it may not be accommodated depending on the book case. Further, there may be a case where it is desired to purchase a new book case for such booklet storage.

  From this point of view, a bookcase and packaging box that can be used as a packaging box for packing a booklet such as a catalog or a pamphlet and that can also be used as a bookcase for storing these booklets is demanded today. As such a bookcase / packaging box, for example, a simple bookcase package (see Utility Model Registration No. 3094872) has been proposed.

  The simple bookcase package described in the above publication has a main body and a cover that is detachably connected to the main body, and is configured so that the cover removed from the main body can be placed on the outer surface of the main body. Yes. The simple bookcase package described in the above publication can be used as a reinforcing member for the main body by arranging the cover so as to overlap the outer surface of the main body. Therefore, the simple bookcase package can be used as a book case with improved strength by overlapping the main body and the cover.

  However, although this simple bookcase package can improve the strength to some extent by overlapping the main body and the cover, it does not have a structure for preventing the books contained in the package from falling. There is a high possibility that the book will fall within the package, and when the book falls, there is a possibility that the whole package will fall with the weight of the book.

Utility Model Registration No. 3094772

  The present invention has been made in view of such inconveniences, and is used as a packaging box for packing a booklet such as a catalog or a pamphlet, and also used as a book case capable of preventing the booklet to be stored from falling. An object of the present invention is to provide a bookcase / packaging box sheet and a bookcase / packaging box.

  A book case / packaging box sheet according to the present invention made to solve the above-described problems is a book that can be assembled into a box shape having square cylindrical portions constituting a top plate and a bottom plate facing each other and a pair of side plates facing each other. A sheet for a case and packaging box, which is connected to the front edge of the top plate so as to be folded back on the inner surface of the top plate, and connected to the front edge of the bottom plate so as to be folded back on the inner surface of the bottom plate. A lower end flap and a book end plate connected to the front edge of the side plate so that it can be folded back on the inner surface of the one side plate, and the book end plate is formed in parallel with a boundary line with the one side plate. A first fold easy line, and a pair of engaging portions formed on the upper edge and the lower edge on the tip side of the first fold easy line, and the upper flap and the lower flap are formed on the book end plate. The pair of engagements Having a first locking portion engageable with.

  The bookcase / packaging box sheet can be used as a packaging box for packing booklets such as catalogs and pamphlets by being assembled into a box shape. In addition, the bookcase / packaging box sheet has the upper flap folded back to the inner surface of the top plate, the lower flap folded back to the inner surface of the bottom plate, the book end plate folded back to the inner surface of one side plate, and the first folded. It can also be used as a book case by bending inward with easy lines and engaging the pair of engaging portions and the first locking portion. That is, in the bookcase / packaging box sheet, the bookend plate is folded inward along the first folding easy line, and a pair of engaging portions provided on the bookend plate is engaged with the first locking portion. By being combined, a portion of the book end plate that is closer to the tip than the first fold easy line is formed as a book end portion that protrudes from the inner surface of one side plate to the other side plate. Therefore, the bookcase formed by assembling the bookcase / packaging box sheet supports the front cover or back cover of the booklet accommodated in the bookcase by the front end of the bookend plate, so that the booklet falls down. Can be easily and reliably prevented.

  The pair of engaging portions are a pair of convex portions protruding from an upper edge and a lower edge of the front end of the book end plate, and a first provided on the upper flap from a boundary line between the upper flap and the top plate. The vertical distance to the locking portion and the vertical distance from the boundary line of the lower flap and the bottom plate to the first locking portion provided on the lower flap are from the boundary line of the book end plate and the one side plate. It is good to be substantially equal to the distance to the first fold easy line. As a result, in the book case in which the book case / packaging box sheet is assembled, the front end portion of the book end plate with respect to the first folding easy line is protruded in a direction perpendicular to the plane direction of the other side plate. The booklet can be accurately fixed and the booklet accommodated can be prevented from falling down more accurately.

  The book end plate has a second easy-to-bend line formed parallel to a boundary line with the one side plate, and the upper flap and the lower flap engage with the pair of convex portions of the book end plate. A vertical distance from the boundary line of the upper flap and the top plate to the second locking portion provided on the upper flap, and the boundary line of the lower flap and the bottom plate The vertical distance to the second locking portion provided on the lower flap is preferably substantially equal to the distance from the boundary line between the book end plate and the one side plate to the second foldable line. Thereby, the easy folding line and the engagement hole can be selected according to the number and thickness of the booklet accommodated, and the booklet accommodated can be more accurately supported.

  A lid flap connected to the front edge of the other side plate, the lid flap having a tongue piece extending from a tip, and the tongue on the boundary line between the one side plate and the book end plate; An insertion hole into which the piece can be inserted is preferably formed. As a result, the lid flap can be used as a front plate of a packaging box in which the bookcase / packaging box sheet is assembled, and also as a front door of a bookcase in which the bookcase / packaging box sheet is assembled. Can be used. Further, by using this lid flap as a front plate of a packaging box in which the book case / packaging box sheet is assembled, the book end plate is prevented from being exposed to the outside, so that it can be transported and stored. It is possible to accurately prevent the book end plate from becoming dirty or scratched. Therefore, for example, by applying a predetermined design or the like to the book end plate, it is possible to suitably improve the inside appearance of the book case in which the book case / packaging box sheet is assembled.

  Moreover, the book case and packaging box which concerns on this invention made | formed in order to solve the said subject assembled the said sheet | seat for book case and packaging boxes which has the said structure.

  The book case / packaging box can be used as a packaging box for packing booklets such as catalogs and pamphlets, and the upper flap is folded back to the inner surface of the top plate and the lower flap is folded to the inner surface of the bottom plate. Can be used as a book case by folding back to the inner surface of one of the side plates and then folding it inward along the first fold easy line to engage the pair of engaging portions and the first locking portion. In the book case / packaging box, the book end plate is bent inward along the first folding easy line, and a pair of engaging portions provided on the book end plate are engaged with the first locking hole. The portion of the book end plate closer to the tip than the first fold easy line is formed as a book end protruding from the inner surface of one side plate to the other side plate, so that it is accommodated by the tip of the book end plate. By supporting the front cover or back cover of the booklet, it is possible to easily and reliably prevent the booklets from falling over.

  As described above, the bookcase / packaging box sheet and bookcase / packaging box of the present invention can be used as a packaging box for packing a booklet such as a catalog or a pamphlet and prevent the booklet to be stored from falling over. It can also be used as a possible bookcase.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the book case and packaging box which concerns on 1st embodiment of this invention, Comprising: (a) is a perspective view which shows the state assembled as a packaging box, (b) is the state assembled as a book case. It is a perspective view shown. FIG. 2 is a schematic development view showing a book case / packaging box sheet constituting the book case / packaging box of FIG. 1. It is typical sectional drawing which shows the assembly process of the packaging box of FIG. It is a schematic diagram which shows the assembly process of the book case of FIG. 1, Comprising: (a) is typical sectional drawing, (b) is a typical front view. It is a typical expanded view which shows the sheet | seat for bookcases / packaging boxes which concerns on 2nd embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

[First embodiment]
<Book case and packaging box>
The book case / packaging box (packaging box 1 and book case 11) in FIG. 1 is assembled from a book case / packaging box sheet.

(Packaging box)
The packaging box 1 has a top plate 2, a pair of side plates 3, a lid portion 4, a back plate 5, and a bottom plate 6, and is formed in a rectangular parallelepiped box shape. One side edge of the lid portion 4 is detachably connected to one side plate 3a, and the other side edge is connected to the other side plate 3b.

(Book case)
The book case 11 includes a top plate 2, a pair of side plates 3, a back plate 5, a bottom plate 6, and a book end portion 12. The book end portion 12 is formed in a flat plate shape. The book end portion 12 is disposed in parallel with the back plate 5. The book end portion 12 protrudes inward (on the other side plate 3b side) from the inner surface of one side plate 3a. The book case 11 is configured such that a booklet 100 such as a catalog or a pamphlet can be accommodated between the other side plate 3 b and the book end portion 12. In the book case 1, the side facing the back plate 5 is configured as an outlet for the booklet 100. The book case 11 is configured to be accommodated from the small edge side of the booklet 100 so that the front cover or back cover of the booklet 100 and the front end of the book end portion 12 can come into contact with each other.

<Book case and packaging box sheet>
The book case / packaging box sheet 21 shown in FIG. 2 is composed of a single sheet, and is assembled to the packaging box 1 for packing a booklet, and further assembled to a book case 11 for accommodating the booklet.

  The sheet material used for the bookcase / packaging box sheet 21 has a strength sufficient to maintain the shape of the packaging box 1 and the bookcase 11 assembled from the bookcase / packaging box sheet 21 and has an appropriate repulsion. It is not particularly limited as long as it has power, and examples thereof include a paper sheet material such as a corrugated cardboard sheet and cardboard, a synthetic resin sheet material, and a laminated sheet material of a paper sheet and a synthetic resin sheet. Of these, a paper sheet material is preferable from the viewpoint of processability, impact absorption, handleability, recyclability, economy, and the like, and a cardboard sheet is particularly preferable.

  The corrugated cardboard sheet is not particularly limited, but a corrugated core base paper bonded to a liner is preferably used. For example, a corrugated core base paper is pasted on one liner. Combined single-sided corrugated sheet, double-sided corrugated sheet with a liner attached to the top of a single-sided corrugated sheet, double-sided corrugated sheet with a single-sided cardboard sheet laminated on one side of a double-sided cardboard sheet, one side of a double-sided corrugated sheet And a double-sided corrugated cardboard sheet in which the tops of single-sided corrugated cardboard sheets are further bonded together. Among these corrugated cardboard sheets, double-sided corrugated cardboard sheets are preferable in terms of processability, economy, durability, and the like.

  The bookcase / packaging box sheet 21 is formed so as to be capable of being assembled into a box shape having a rectangular cylindrical portion constituting the top plate 2 and the bottom plate 6 facing each other and the pair of side plates 3 facing each other. The book case / packaging box sheet 21 has a book end plate 22 connected to the front edge of the side plate 3a so that it can be folded back to the inner surface of one side plate 3a, and a top plate 2 that can be folded back to the inner surface of the top plate 2. An upper flap 23 connected to the front edge, a lower flap 24 connected to the front edge of the bottom plate 6 so as to be folded back to the inner surface of the bottom plate 6, and a lid flap 25 connected to the front edge of the other side plate 3b. Have. The bookcase / packaging box sheet 21 is connected to the inner flap 26 connected to the rear edge of the top plate 2, the inner flap 27 connected to the rear edge of the bottom plate 6, and the rear edge of one side plate 3a. And the outer flap 29 connected to the rear edge of the other side plate 3b. The “front edge” refers to the edge on the lid side (the outlet side of the booklet 100 in the book case 11) of the packaging box 1 in which the book case / packaging box sheet 21 is assembled. "Means the edge of the opposite side (back side). In addition, the “inner surface” means a surface on the side forming the inner surface in the packaging box 11 and the book case 11 in which the book case / packaging box sheet 21 is assembled.

  The bookcase / packaging box sheet 21 has a substantially vertically U-shaped cut 30 having both ends bent toward the top plate 2 at the center of the boundary between the top plate 2 and the lower flap 26. The bookcase / packaging box sheet 21 has a substantially vertically U-shaped cut 31 having both ends bent toward the bottom plate 6 at the center of the boundary between the bottom plate 6 and the lower flap 27. Further, the book case / packaging box sheet 21 has a substantially vertically long U-shaped cut 32 in which both ends are bent toward the pair of side plates 3 in the vicinity of both ends of the boundary between the pair of side plates 3 and the pair of upper flaps 28 and 29. Have

  The top plate 2 and the bottom plate 6 are formed in a rectangular shape having the same shape and the same size. The pair of side plates 3a and 3b are also formed in a rectangular shape having the same shape and the same size. The longitudinal lengths of the top plate 2, the bottom plate 6, and the pair of side plates 3 are the same. The bookcase / packaging box sheet 21 has an adhesive margin 33 protruding from the other side edge of the other side plate 3b. The top plate 2, the bottom plate 6, and the pair of side plates 3 are formed as quadrangular cylindrical portions by bending the boundary lines and bonding the glue margin 33 along one side edge of the top plate 2. . The size of the rectangular cylindrical portion is appropriately selected based on the size of the booklet to be accommodated and is not particularly limited. For example, the height is 27 cm to 37 cm, the width is 15 cm to 25 cm, and the depth Is about 17 cm to 27 cm.

  The book end plate 22 has a foldable line 34 (first foldable line) formed in parallel with the boundary line with the one side plate 3a. The book end plate 22 is formed as a base end portion 35 that is folded back to the inner surface of the one side plate 3 a with respect to the fold easy line 34, and the tip end portion of the book end plate 22 constitutes the book end portion 12. It is formed as a leading end portion 36.

As a lower limit of the ratio (L ₂ / L ₁ ) of the distance L ₂ from the boundary line between the book end plate 22 and the one side plate 3 a to the folding easy line 34 with respect to the longitudinal distance L ₁ of the one side plate 3 a, 4 is preferable, 1/3 is more preferable, and 2/5 is more preferable. On the other hand, as an upper limit of the ratio (L ₂ / L ₁ ) of the distance L ₂ from the boundary line between the book end plate 22 and the one side plate 3 a to the folding easy line 34 with respect to the front-rear direction distance L ₁ of one side plate 3 a, 3/4 is preferable, 2/3 is more preferable, and 3/5 is more preferable. Further, the ratio (L ₂ / L ₁ ) of the distance L ₂ from the boundary line between the book end plate 22 and the one side plate 3 a to the easy folding line 34 with respect to the longitudinal distance L ₁ of the one side plate 3 a is 1 / 2 is particularly preferred. When the ratio (L ₂ / L ₁ ) of the distance L ₂ from the boundary line between the book end plate 22 and the one side plate 3 a to the folding easy line 34 with respect to the longitudinal distance L ₁ of the one side plate 3 a is out of the above range. The book end portion 12 in the book case 11 formed by assembling the book case / packaging box sheet 21 may pass by the front edge side or the rear edge side and may not support the booklet 100 accurately.

  The book end plate 22 has a pair of engaging portions formed on the upper edge and the lower edge on the tip side of the folding easy line 34. The pair of engaging portions are formed as a pair of convex portions 37 and 38 protruding from the upper edge and the lower edge of the front end of the book end plate 22. The “upper edge” refers to the edge on the top plate 2 side of the packaging box 1 and bookcase 11 in which the bookcase / packaging box sheet 21 is assembled, and the “lower edge” refers to the opposite side. The edge of the (bottom plate 6 side) is said.

The lower limit of the width _{W 1} of the pair of convex portions 37, 38, 2 cm is preferred, more preferably 2.5 cm, more preferably 3 cm. On the other hand, the upper limit of the width _{W 1} of the pair of convex portions 37, 38, 6 cm, more preferably 5.5cm, more preferably 5 cm. If the width _{W 1} of the pair of convex portions 37 and 38 is less than the above lower limit, when engaged with the locking holes 41 and 43 to be described later a pair of projecting portions 37 and 38, a pair of protrusions 37, 38 engaging There is a high risk that the holes 41 and 43 will come out. Conversely, when the width _{W 1} of the pair of convex portions 37 and 38 exceeds the upper limit, it may become difficult to engage the pair of projecting portions 37 and 38 engaging hole 41, 43.

The lower limit of the height _{H 1} of the pair of convex portions 37, 38, 3 mm are preferred, more preferably 4 mm, more preferably 5 mm. In contrast, the upper limit of the height _{H 1} of the pair of convex portions 37, 38, 9 mm is preferable, 8 mm, and still more preferably 7 mm. If the height _{H 1} of the pair of convex portions 37 and 38 is less than the above lower limit, when engaged with a pair of protrusions 37, 38 engaging hole 41 and 43, a pair of protrusions 37, 38 engaging There is a high possibility that the holes 41 and 43 will come out. Conversely, when the height _{H 1} of the pair of convex portions 37 and 38 exceeds the upper limit, it may become difficult to engage the pair of projecting portions 37 and 38 engaging hole 41, 43.

  The book end plate 22 has an insertion hole 39 at the boundary line with the one side plate 3a. The book end plate 22 has a recess 40 at the center of the tip. The longitudinal length of the book end plate 22 is substantially the same as the longitudinal length of one side plate 3a.

The upper flap 23 has a locking hole 41 (first locking portion). The locking hole 41 is formed so as to be engageable with the convex portion 37 of the book end plate 22. The locking hole 41 is formed in a rectangular shape whose longitudinal direction is parallel to the boundary line between the upper flap 23 and the top plate 2. Width W of the locking hole 41 ₂ is the thickness of the convex portion 37 (the thickness of the sheet material forming the convex portion 37) above. The lower limit of the ratio of the width _{W 2} of the locking holes 41 to the thickness of the projection 37 is preferably 1.2, more preferably 1.4. On the other hand, the upper limit of the ratio of the width _{W 2} of the locking holes 41 to the thickness of the projection 37, 3 are preferred, 2.5, and still more preferably 1.8. If the ratio of the width W ₂ of the locking holes 41 to the thickness of the projection 37 is less than the above lower limit, it may become difficult to engage the convex portion 37 in the locking hole 41. Conversely, when the ratio of the width W ₂ of the locking holes 41 to the thickness of the protrusion 37 is engaged when the projecting portions 37 in the locking hole 41 exceeds the above upper limit, the projection 37 from the locking holes 41 The risk of getting out increases.

The lower limit of the ratio (L ₃ / W ₁ ) of the longitudinal length L ₃ of the locking hole 41 to the width W ₁ of the convex portion 37 is preferably 1, and more preferably 1.1. On the other hand, the upper limit of the ratio (L ₃ / W ₁ ) of the length L ₃ of the locking hole 41 to the width W ₁ of the convex portion 37 is preferably 2, more preferably 1.5, and 1.3 Further preferred. When the ratio (L ₃ / W ₁ ) of the length L ₃ in the longitudinal direction of the locking hole 41 to the width W ₁ of the convex portion 37 is less than the lower limit, it is difficult to engage the convex portion 37 with the locking hole 41. There is. On the contrary, when the ratio (L ₃ / W ₁ ) of the length L ₃ in the longitudinal direction of the locking hole 41 to the width W ₁ of the protruding portion 37 exceeds the upper limit, the protruding portion 37 is engaged with the locking hole 41. In such a case, there is a high possibility that the convex portion 37 will come out of the locking hole 41.

The upper flap 23 has a convex piece 42 at the center of the tip. The length of the upper flap 23 in the front-rear direction is substantially the same as the length of the top plate 2 in the front-rear direction. Vertical distance from the boundary line of the upper flap 23 and the top plate 2 to the locking hole 41 is substantially equal to the distance L ₂ to facilitate wire 34 bent from a boundary line between the one side plate 3a and bookend plate 22 Has been. Further, the distance from the end of the locking hole 41 on the book end plate 22 side to the end of the upper flap 23 on the book end plate 22 side is the distance from the folding easy line 34 to the base end side edge of the convex portion 37. It is almost the same.

The lower flap 24 has a locking hole 43 (first locking portion). The locking hole 43 is formed so as to be engageable with the convex portion 38 of the book end plate 22. The locking hole 43 is formed in a rectangular shape whose longitudinal direction is parallel to the boundary line between the lower flap 24 and the bottom plate 6. Width W of the locking hole 43 ₃ is the thickness of the convex portion 38 (the thickness of the sheet material forming the convex portion 38) above. The ratio of the width W ₃ of the locking hole 43 to the thickness of the convex portion 38 is the same as the ratio of the width W ₂ of the locking hole 41 to the thickness of the convex portion 37. Further, the ratio (L ₄ / W ₁ ) of the length L ₄ of the locking hole 43 to the width W ₁ of the convex portion 38 (L ₄ / W ₁ ) is the length of the locking hole 41 in the longitudinal direction to the width W ₁ of the convex portion 37. is the same as the ratio of _{L 3 (L 3 / W 1} ).

The lower flap 24 has a convex piece 44 at the center of the tip. The length of the lower flap 24 in the front-rear direction is substantially the same as the length of the bottom plate 6 in the front-rear direction. Vertical distance from the boundary line between the lower flap 24 and the bottom plate 6 to the locking hole 43 is approximately equal to the vertical distance L ₂ from the boundary line between the one side plate 3a and bookend plate 22 to bend easily line 34 It is said that. Further, the distance from the end of the locking hole 43 on the book end plate 22 side to the end of the lower flap 24 on the book end plate 22 side is the distance from the folding easy line 34 to the base end side edge of the convex portion 38. It is almost the same.

  The lid flap 25 has a tongue 45 extending from the tip. The tongue piece 45 is formed so as to be insertable into the insertion hole 39 in a state in which the bookcase / packaging box sheet 21 is assembled to the packaging box 1. An easy break line 46 is formed at the boundary line between the lid flap 25 and the other side plate 3b.

  The outer flap 28 has a protrusion 47 extending from the center of the tip. The outer flap 28 has a pair of weakening lines 49 formed to be inclined toward the center from the upper end and the lower end on the base end side to the front end. The outer flap 29 has a recess 48 at the center of the tip. The outer flap 29 has a pair of weakening lines 50 that are formed to be inclined toward the center from the upper end and the lower end on the proximal end side to the distal end.

<Assembly method of packaging box>
Next, a method for assembling the packaging box 1 using the bookcase / packaging box sheet 21 will be described.

  First, the top plate 2, the pair of side plates 3, and the bottom plate 6 are bent at their respective boundary lines, and the glue margin portion 33 is bonded along the other side edge of the inner surface of the top plate 2 to form a square cylindrical portion. .

  Next, the pair of inner flaps 26 and 27 are folded inward, the outer flap 29 is folded inward, and the outer flap 28 is folded inward so as to overlap the outer surface of the outer flap 29. Then, in a state where the outer flap 28 is superimposed on the outer surface of the outer flap 29, the outer flap 28 is further pushed inward. Here, since the outer flap 28 has a pair of weakening lines 49 and the outer flap 29 has a pair of weakening lines 50, these two pairs of weakening lines 49, 50 are appropriate in response to the pushing of the outer flap 28. Therefore, the outer flap 28 can be sufficiently pushed inward. By this pushing operation, the projecting portion 47 enters the inside of the recessed portion 48, and the outer flap 28 and the outer flap 29 are engaged to form the back plate 5. Here, the bookcase / packaging box sheet 21 has a substantially vertically U-shaped cut 30 whose both ends are bent toward the top plate 2 at the center of the boundary between the top plate 2 and the lower flap 26. And a lower flap 27 at the center of the boundary between the top plate 2 and the bottom plate 6 at the center of the rear edges of the top plate 2 and the bottom plate 6. The protrusions 51 are formed, and a pair of fitting holes 52 are formed between the pair of protrusions 51 and the back plate 5 (see FIG. 3A).

  Subsequently, as shown in FIG. 3A, the book end plate 22 is folded back to the inner surface of the one side plate 3a. Further, as shown in FIG. 3B, the upper flap 23 is folded back on the inner surface of the top plate 2, and the lower flap 24 is folded back on the inner surface of the bottom plate 6. In this way, the upper flap 23 is folded back to the inner surface of the top plate 2 and the lower flap 24 is folded back to the inner surface of the bottom plate 6, whereby the convex portion 37 of the book end plate 22 is locked by the side edge of the upper flap 23. The convex portion 38 of the end plate 22 is locked by the side edge of the lower flap 24. Further, the convex piece 42 of the upper flap 23 and the convex piece 44 of the lower flap 24 are fitted into the pair of fitting holes 52. As a result, the book end plate 22 is accurately fixed in a state of being superimposed on the inner surface of the one side plate 3a, and the upper flap 23 is accurately fixed in a state of being superimposed on the inner surface of the top plate 2, so that the lower flap 24 Is accurately fixed in a state of being superimposed on the inner surface of the bottom plate 6.

  Further, as shown in FIG. 3C, the lid flap 25 is bent inward, and the tongue piece 45 is inserted into the insertion hole 39. Thereby, the lid | cover flap 25 is comprised as the cover part 4, and the packaging box 1 is assembled.

<Assembly method of bookcase>
Next, an assembling method of the book case 11 will be described with reference to FIG. In addition, about the assembly method of the book case 11, the case where the book case 11 is assembled from the packaging box 1 is demonstrated.

  First, as shown in FIG. 4A, the folding line 34 of the book end plate 22 is bent approximately 90 ° inward to engage the convex portion 37 with the locking hole 41, and the convex portion 38 is locked to the locking hole. 43 is engaged. As described above, the bookcase / packaging box sheet 21 includes the vertical distance from the boundary line of the upper flap 23 and the top plate 2 to the locking hole 41, and the locking hole from the boundary line of the lower flap 24 and the bottom plate 6. Since the vertical distance up to 43 and the distance from the boundary line between the book end plate 22 and one side plate 3a to the easy folding line 34 are formed to be substantially equal, the folding easy line 34 of the book end plate 22 is set approximately 90 inward. When bent, the position in the front-rear direction of the pair of convex portions 37, 38 and the position in the front-rear direction of the pair of locking holes 41, 43 coincide. The book case / packaging box sheet 21 can engage the pair of convex portions 37 and 38 and the pair of locking holes 41 and 43 in a state where the easy folding line 34 is bent approximately 90 ° inward as described above. Therefore, the booklet accommodated in the book case 11 can be accurately supported from the lateral direction.

  Further, as described above, the book case / packaging box sheet 21 can be easily bent at a distance from the end of the locking hole 41 on the book end plate 22 side to the end of the upper flap 23 on the book end plate 22 side. The distance from the line 34 to the edge on the proximal end side of the projection 37 is substantially the same, and the distance from the book end plate 22 side end of the locking hole 43 to the book end plate 22 side end of the lower flap 24 Is substantially the same as the distance from the fold easy line 34 to the base end side edge of the convex portion 38, so that when the fold easy line 34 is bent approximately 90 ° inward, the pair of convex portions 37, 38 and the pair The engaging holes 41 and 43 can be easily and reliably engaged.

  The book case / packaging box sheet 21 is configured such that the tip end portion 36 is configured as the book end portion 12 by engaging the pair of convex portions 37 and 38 and the pair of locking holes 41 and 43 as shown in FIG. It is assembled into the book case 11 shown in FIG. Note that the bookcase 11 may use the lid flap 25 as a front door, as shown in FIG. 4B, or may be used with the lid flap 25 separated by a breakable line 46. The book case / packaging box sheet 21 has a recess 40 in the center of the tip of the book end plate 22. Therefore, even when a booklet is accommodated in the book case 11, a finger or the like is inserted from the recess 40 to facilitate the booklet. Can be taken out.

<Advantages>
The book case / packaging box sheet 21 can be used as a packaging box 1 for packing a booklet such as a catalog or a pamphlet by being assembled into a box shape. Further, the book case / packaging box sheet 21 has the upper flap 23 folded back on the inner surface of the top plate 5 and the lower flap 24 folded back on the inner surface of the bottom plate 6, and the book end plate 22 on the inner surface of one side plate 3 a. It can be used also as the book case 11 by being folded back and bent inward by the folding easy line 34 and engaging the pair of convex portions 37 and 38 and the pair of locking holes 41 and 43. That is, in the bookcase / packaging box sheet 21, the bookend plate 22 is bent inwardly by the folding easy line 34, and the pair of convex portions 37, 38 provided on the bookend plate 22 are a pair of locking holes 41. , 43 is formed as a book end portion 12 that protrudes from the inner surface of one side plate 3a to the other side plate 3b side of the front end side of the book end plate 22 with respect to the folding easy line 34. . Therefore, the book case 11 formed by assembling the book case and packaging box sheet 21 supports the front cover or back cover of the booklet accommodated in the book case 11 by the tip of the book end plate 22. The booklet can be prevented from falling over easily and reliably.

  In the book case / packaging box sheet 21, a pair of convex portions 37, 38 protrude from the upper and lower edges of the front end of the book end plate 22, and the upper flap 23 extends from the boundary line of the upper flap 23 and the top plate 5. The vertical distance to the locking hole 41 provided and the vertical distance from the boundary line of the lower flap 24 and the bottom plate 6 to the locking hole 43 provided in the lower flap 24 are the boundary between the book end plate 22 and one side plate 3a. In the book case 11 in which the bookcase / packaging box sheet 21 is assembled, the tip end side of the bookend plate 22 with respect to the easy-to-bend line 34 is placed on the other side. The side plate 3b can be accurately fixed by projecting in the direction perpendicular to the plane direction, and the booklet to be accommodated can be prevented from falling down more accurately.

  The bookcase / packaging box sheet 21 further includes a lid flap 25 connected to the front edge of the other side plate 3b. The lid flap 25 has a tongue piece 45 extending from the tip, and the one side plate 3a. Since the insertion hole 39 into which the tongue piece 45 can be inserted is formed in the boundary line between the book end plate 22 and the book end plate 22, the lid flap 25 is placed in front of the packaging box 1 in which the book case / packaging box sheet 21 is assembled. It can be used as a face plate and can also be used as a front door of the book case 11 in which the book case / packaging box sheet 21 is assembled. In addition, since the book end plate 22 is prevented from being exposed to the outside by using the lid flap 25 as a front plate of the packaging box 1 in which the book case and packaging box sheet 21 is assembled, It is possible to accurately prevent the book end plate 22 from being dirty or scratched during storage. Therefore, for example, by applying a predetermined design or the like to the book end plate 22, the inside appearance of the book case 11 in which the book case / packaging box sheet 21 is assembled can be suitably improved.

  The book case / packaging box formed by assembling the book case / packaging box sheet 21 can be used as a packaging box 1 for packing a booklet such as a catalog or a pamphlet, and the upper flap 23 is provided on the inner surface of the top plate 2. The lower flap 24 is folded back to the inner surface of the bottom plate 6, and the book end plate 22 is folded back to the inner surface of one side plate 3 a, and is folded inward by a folding easy line 34, so that a pair of convex portions 37, 38 and a pair By engaging the locking holes 41 and 43, the bookcase 11 can be used. In the book case / packaging box, the book end plate 22 is bent inward by a bendable line 34, and a pair of convex portions 37, 38 provided on the book end plate 22 are engaged with the pair of locking holes 41, 43. As a result, the book end plate 22 is formed as a book end portion 12 that protrudes from the inner surface of one side plate 3a to the other side plate 3b side of the book end plate 22 with respect to the folding easy line 34. By supporting the front cover or back cover of the booklet accommodated by the leading end of the booklet, it is possible to prevent these booklets from falling over easily and reliably.

[Second Embodiment]
The book case / packaging box sheet 61 of FIG. 5 is composed of a single sheet, and can be assembled into a packaging box and can be assembled into a book case. The sheet material used for the bookcase / packaging box sheet 61 is the same as the bookcase / packaging box sheet 21 of FIG.

  The book case / packaging box sheet 61 is formed so as to be capable of being assembled into a box shape having a rectangular cylindrical portion constituting the top plate 2 and the bottom plate 6 facing each other and the pair of side plates 3 facing each other. The book case / packaging box sheet 61 includes a book end plate 62 connected to the front edge of the side plate 3a so that it can be folded back to the inner surface of one side plate 3a, and a top end 2 of the top plate 2 that can be folded back to the inner surface of the top plate 2. An upper flap 63 connected to the front edge, a lower flap 64 connected to the front edge of the bottom plate 6 so that it can be folded back to the inner surface of the bottom plate 6, and a lid flap 25 connected to the front edge of the other side plate 3b. Have. The book case / packaging box sheet 61 is connected to the inner flap 26 connected to the rear edge of the top plate 2, the inner flap 27 connected to the rear edge of the bottom plate 6, and the rear edge of one side plate 3a. And the outer flap 29 connected to the rear edge of the other side plate 3b. The top case 2, the pair of side plates 3, the bottom plate 6, the lid flap 25, the pair of inner flaps 26 and 27, and the pair of outer flaps 28 and 29 in the sheet 61 for the book case and packaging box are the book case and packaging box of FIG. Since it is the same as that of the sheet 21, the same reference numerals are given and description thereof is omitted.

  The book end plate 62 has a first easy-to-bend line 65 and a second easy-to-bend line 66 that are formed in parallel to the boundary line with the one side plate 3a. The first easy-to-bend line 65 and the second easy-to-bend line 66 are arranged with the center position of the book end plate 62 in the front-rear direction.

The lower limit of the arrangement width _{W 4} of the first fold easily line 65 and the second fold easily line 66, more preferably 2cm is preferably 2.5cm, more preferably 3 cm. On the other hand, the upper limit of the arrangement width W ₄ of the first fold easy line 65 and the second fold easy line 66 is preferably 6 cm, more preferably 5.5 cm, and even more preferably 5 cm. Distribution when設幅W ₄ is less than the lower limit of the first fold easily line 65 and the second fold easily line 66, the protruding length of the book-end portion of the book case made by assembling the bookcase and packing box sheet 61 There is a possibility that it cannot be suitably adjusted. Conversely, if the arrangement width W ₄ of the first fold easily line 65 and the second fold easily line 66 exceeds the upper limit, the book-end unit in the book case formed by assembling the bookcase and packing box sheet 61 before There is a possibility that the booklet cannot be accurately supported by being passed by the edge side or the trailing edge side.

The book end plate 62 has a pair of engaging portions formed on the upper edge and the lower edge on the tip side of the first fold easy line 65 and the second fold easy line 66. The pair of engaging portions are formed as a pair of convex portions 67 and 68 protruding from the upper and lower edges of the tip of the book end plate 62. The width of the pair of projecting portions 67 and 68 is the same as the width _{W 1} of the pair of convex portions 37, 38 of the bookcase and packing box sheet 21 of FIG. The height of the pair of convex portions 67 and 68 is the same as the height H ₁ of the pair of convex portions 37, 38 of the bookcase and packing box sheet 21 of FIG.

  The book end plate 62 has an insertion hole 69 at the boundary line with the one side plate 3a. Further, the book end plate 62 has a recess 70 at the center of the tip. The longitudinal length of the book end plate 62 is substantially the same as the longitudinal length of one side plate 3a.

The upper flap 63 has a first locking hole 71 (first locking part) and a second locking hole 72 (second locking part). The first locking hole 71 and the second locking hole 72 are formed so as to be engageable with the convex portion 67 of the book end plate 62. The first locking hole 71 and the second locking hole 72 are formed in a rectangular shape whose longitudinal direction is parallel to the boundary line between the upper flap 63 and the top plate 2. The width of the first locking hole 71 and the second locking hole 72 is equal to or greater than the thickness of the convex portion 67 (the thickness of the sheet material forming the convex portion 67). As the ratio of the width of the first locking hole 71 and the second locking hole 72 to the thickness of the convex portion 67, the width of the locking hole 41 with respect to the thickness of the convex portion 37 of the bookcase / packaging box sheet 21 of FIG. is the same as the ratio of W _2. Moreover, as a ratio of the longitudinal direction length of the 1st locking hole 71 and the 2nd locking hole 72 with respect to the width | variety of the convex part 67, width W ₁ of the convex part 37 of the sheet | seat 21 for bookcases / packaging boxes of FIG. It is the same as the ratio (L ₃ / W ₁ ) of the length L ₃ in the longitudinal direction of the locking hole 41 with respect to

  The upper flap 63 has a convex piece 73 at the center of the tip. The length of the upper flap 63 in the front-rear direction is substantially the same as the length of the top plate 2 in the front-rear direction. The vertical distance from the boundary line between the upper flap 63 and the top plate 2 to the first locking hole 71 is the vertical distance from the boundary line between the book end plate 62 and one side plate 3a to the first easy folding line 65. It is almost the same. The vertical distance from the boundary line between the upper flap 63 and the top plate 2 to the second locking hole 72 is the vertical distance from the boundary line between the book end plate 62 and the one side plate 3a to the second easy folding line 66. It is almost the same. Further, the distance from the end of the first locking hole 71 on the book end plate 62 side to the end of the upper flap 63 on the book end plate 62 side is the distance from the first folding easy line 65 to the proximal end of the convex portion 67. It is almost the same as the distance to the edge. The distance from the end portion on the book end plate 62 side of the second locking hole 72 to the end portion on the book end plate 62 side of the upper flap 63 is from the second folding easy line 66 to the base end side edge of the convex portion 67. The distance is approximately the same.

The lower flap 64 has a first locking hole 74 (first locking portion) and a second locking hole 75 (second locking portion). The first locking hole 74 and the second locking hole 75 are formed so as to be engageable with the convex portion 68 of the book end plate 62. The first locking hole 74 and the second locking hole 75 are formed in a rectangular shape whose longitudinal direction is parallel to the boundary line between the lower flap 64 and the bottom plate 6. The width of the first locking hole 74 and the second locking hole 75 is equal to or greater than the thickness of the convex portion 68 (the thickness of the sheet material forming the convex portion 68). As the ratio of the width of the first locking hole 74 and the second locking hole 75 to the thickness of the convex portion 68, the width of the locking hole 43 with respect to the thickness of the convex portion 38 of the bookcase / packaging box sheet 21 of FIG. is the same as the ratio of W _3. Moreover, as a ratio of the longitudinal direction length of the 1st locking hole 74 and the 2nd locking hole 75 with respect to the width | variety of the convex part 68, width W ₁ of the convex part 38 of the sheet | seat 21 for bookcases / packaging boxes of FIG. It is the same as the ratio (L ₄ / W ₁ ) of the length L ₄ in the longitudinal direction of the locking hole 43 with respect to.

  The lower flap 64 has a convex piece 76 at the center of the tip. The length of the lower flap 64 in the front-rear direction is substantially the same as the length of the bottom plate 6 in the front-rear direction. The vertical distance from the boundary line between the lower flap 64 and the bottom plate 6 to the first locking hole 74 is the vertical distance from the boundary line between the book end plate 62 and one side plate 3a to the first foldable line 65. It is almost the same. The vertical distance from the boundary line between the lower flap 64 and the top plate 2 to the second locking hole 75 is the vertical distance from the boundary line between the book end plate 62 and the one side plate 3a to the second easy folding line 66. It is almost the same. Further, the distance from the end portion of the first locking hole 74 on the book end plate 62 side to the end portion of the lower flap 64 on the book end plate 62 side is the first folding easy line 65 to the proximal end of the convex portion 68. It is almost the same as the distance to the edge. The distance from the end of the second locking hole 75 on the book end plate 62 side to the end of the lower flap 64 on the book end plate 62 side is from the second folding easy line 66 to the base end side edge of the convex portion 68. The distance is approximately the same.

<Advantages>
The book case / packaging box sheet 61 has a first fold easy line 65 and a second fold easy line 66 in which the book end plate 62 is formed in parallel with the boundary line with the one side plate 3a. The lower flap 64 has a pair of first locking holes 71 and 74 and a pair of second locking holes 72 and 75 that can be engaged with the pair of protrusions 67 and 68 of the book end plate 62. Further, the bookcase / packaging box sheet 61 has a vertical distance from the boundary between the upper flap 63 and the top plate 2 to the first locking hole 71 and the first locking from the boundary between the lower flap 64 and the bottom plate 6. The vertical distance to the hole 74 is substantially equal to the distance from the boundary line of the book end plate 62 and one side plate 3a to the first fold easy line 65, and from the boundary line of the upper flap 63 and the top plate 2 to the second engagement. The vertical distance to the stop hole 72 and the vertical distance from the boundary line of the lower flap 64 and the bottom plate 6 to the second locking hole 75 are the second easy folding line from the boundary line of the book end plate 62 and one side plate 3a. The distance up to 66 is approximately equal. Therefore, the bookcase / packaging box sheet 61 can suitably engage the pair of convex portions 67 and 68 with the pair of first locking holes 71 and 74 or the pair of second locking holes 72 and 75. it can. Therefore, the book case / packaging box sheet 61 can select a folding easy line and an engagement hole in accordance with the number and thickness of the booklet accommodated. It can be supported accurately.

[Other Embodiments]
The bookcase / packaging box sheet and bookcase / packaging box of the present invention can be implemented in various modified and improved modes in addition to the above-described mode. For example, the configuration of the back plate in the bookcase / packaging box is not particularly limited, and a pair of inner flaps are folded inward, a pair of outer flaps are folded inwardly, and the adhesive tape is attached to the butted portion. It may be formed by pasting.

  The pair of engaging portions formed on the book end plate does not necessarily need to be a pair of convex portions, and the engaging portions formed on the upper flap and the lower flap do not necessarily need to be engaging holes. For example, the locking portion may be a cut or groove formed in the upper flap and the lower flap. In addition, as the configuration of the engaging part and the locking part, for example, the vertical length of the book end part (the end part of the book end plate) in the book case in which the book case / packaging box sheet is assembled is the upper flap. It is also possible to adopt a configuration in which the length between the lower flap and the lower flap is longer by about 1 mm or more and 5 mm or less, and the tip portion is sandwiched between the upper flap and the lower flap.

  When the pair of engaging portions formed on the book end plate is a pair of convex portions, the pair of convex portions are not necessarily above the tip as long as they protrude from the upper and lower edges on the tip side of the easy-to-bend line. It does not need to protrude from the edge and the lower edge. However, in order to accurately fix the book end portion from the front end side, it is preferable that the pair of convex portions protrude from the upper and lower edges of the front end of the book end plate.

  In addition, the bookcase / packaging box sheet may have three or more foldable lines and may have a locking hole corresponding to each foldable line. Since the bookcase / packaging box sheet has a large number of foldable lines and locking holes in this manner, the booklet to be accommodated can be accurately supported by the bookend plate according to the number, thickness, and the like. .

  As described above, the book case / packaging box sheet and the book case / packaging box of the present invention can be used as a packaging box for packing a booklet such as a catalog or a pamphlet, and can prevent the booklet to be stored from falling over. Since it can be used as a simple bookcase, it is suitable as a booklet transport box and bookcase.

DESCRIPTION OF SYMBOLS 1 Packaging box 2 Top plate 3 Side plate 4 Cover part 5 Back surface plate 6 Bottom plate 11 Book case 12 Book end part 21, 61 Book case and packaging box sheet 22, 62 Book end board 23, 63 Upper flap 24, 64 Lower flap 25 Lid flaps 26, 27 Inner flaps 28, 29 Outer flaps 30, 31, 32 Cuts 33 Glue margin 34 Easy folding line (first folding easy line)
35 Base end part 36 Tip part 37, 38, 67, 68 Convex part (engagement part)
39, 69 Insertion hole 40, 70 Recess 41, 43 Locking hole (first locking part)
42, 44, 73, 76 Convex piece 45 Tongue piece 46 Easy break line 47 Protruding part 48 Concave part 49, 50 Weakened line 51 Projection part 52 Fitting hole 65 First bend easy line 66 Second easy bend line 71, 74 One locking hole (first locking part)
72, 75 Second locking hole (second locking part)
100 booklet

Claims (5)

A bookcase and packaging box sheet that can be assembled into a box shape having a rectangular cylindrical portion that constitutes a top plate and a bottom plate facing each other and a pair of side plates facing each other,
An upper flap connected to the front edge of the top plate so that it can be folded back to the inner surface of the top plate;
A lower flap connected to the front edge of the bottom plate so that it can be folded back to the inner surface of the bottom plate;
A book end plate connected to the front edge of the side plate so that it can be folded back on the inner surface of one of the side plates,
The book end plate
A first easy-to-bend line formed parallel to a boundary line with the one side plate, and a pair of engaging portions formed at the upper edge and the lower edge of the front end side with respect to the first easy-to-bend line;
A bookcase / packaging box sheet in which the upper flap and the lower flap have a first locking portion that can be engaged with the pair of engaging portions of the bookend plate. The pair of engaging portions are a pair of convex portions protruding from an upper edge and a lower edge of the tip of the book end plate,
The vertical distance from the boundary line of the upper flap and the top plate to the first locking portion provided on the upper flap, and from the boundary line of the lower flap and the bottom plate to the first locking portion provided on the lower flap 2. The bookcase / packaging box sheet according to claim 1, wherein the vertical distance is substantially equal to a distance from a boundary line between the bookend plate and the one side plate to the first folding easy line. The book end plate has a second easy-to-bend line formed parallel to the boundary line with the one side plate;
The upper flap and the lower flap have a second locking portion that can be engaged with the pair of convex portions of the book end plate,
The vertical distance from the boundary line of the upper flap and the top plate to the second locking portion provided on the upper flap, and from the boundary line of the lower flap and the bottom plate to the second locking portion provided on the lower flap 3. The bookcase / packaging box sheet according to claim 2, wherein the vertical distance is substantially equal to a distance from a boundary line between the bookend plate and the one side plate to the second foldable line. A lid flap connected to the front edge of the other side plate;
The lid flap has a tongue extending from the tip;
The sheet for bookcase / packaging box according to claim 1, wherein an insertion hole into which the tongue piece can be inserted is formed at a boundary line between the one side plate and the bookend plate. .   A book case / packaging box obtained by assembling the book case / packaging box sheet according to claim 1.

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