JP2021050018A - Packaging box - Google Patents

Abstract

To provide a packaging box having a simple structure and capable of changing a display of product identification information without changing a design of the packaging box itself.SOLUTION: A packaging box 100 formed of one blank material 110 is provided with a peripheral wall 102 having a double structure in at least one surface thereof, the peripheral wall formed by bending an upper wall surface part 124 continuous with an outer wall surface part 121 on which an opening window part 122 is formed along a folding curve L3, and bending an inner wall surface part 125 continuous with the upper wall surface part 124 along the folding curve L3, in which a sheet-like display body 170 is interchangeably inserted between the outer wall surface part 121 and the inner wall surface part 125.SELECTED DRAWING: Figure 6

Description

The present invention relates to a packaging box in which a sheet-shaped display body displaying product identification information or the like is replaceably mounted.

Conventionally, a single product or an assortment of a plurality of types of products has been provided as a gift set or the like. Generally, information about a product and product identification information such as a product name and a JAN code are printed on a packaging box for storing the product. Therefore, even in the packaging box for gift products, the main design is applied to improve the appearance by various characters, figures, patterns, etc., and the product identification information is printed on the appearance surface.

Thus, the set contents of the products in the gift set have a wide variety of variations in order to meet the various needs of customers. In the packaging box, even if the main design is the same, it is necessary to print different product identification information for each gift set, so the material of the packaging box is the same for each item. Is. This applies not only to packaging boxes for gift products, but also to packaging boxes for products having a wide variety of variations.

For this reason, the method of printing directly on the material of the packaging box cannot standardize the material, so it is necessary to print according to the number of variations of the product or the set contents of the product, and the more types there are, the more unnecessary it is. Easy to hold inventory. In particular, packaging boxes for gift products have high quality requirements and require a relatively large area of materials, so they are high-priced materials, but they are sold out with poor sales and a large amount of inventory remaining. In that case, all the inventory had to be disposed of, resulting in waste of costs and resources.

As mentioned above, the main design of the packaging box is often almost the same, so for the above problems, the product identification information is displayed instead of being printed directly on the packaging box. It is conceivable to provide a display body on the packaging box.
For example, in a container for displaying products, there is known a technique in which a display body attachment portion to which a display body can be attached and detached is provided on an outer surface and a different display can be performed by replacing the sheet-shaped display body (for example, Patent Document 1). reference.).

Utility Model Registration No. 3034005

However, in the technique described in Patent Document 1, the sheet-shaped display can be easily changed and can be used for temporary purposes such as display, but the sheet-shaped display may come off or be damaged. It is difficult to use for distribution purposes involving stacking and transportation. In addition, there is a risk of spoiling the aesthetic appearance of the packaging box, which is not preferable for a packaging box for gift products.

The present invention has been made based on the above circumstances, and provides a packaging box having a simple structure and capable of changing the display of product identification information without changing the design of the packaging box itself. The purpose is.

The present invention is a packaging box formed of a single blank material, erected against a bottom wall, and provided with at least one peripheral wall having a double structure consisting of an outer wall surface portion and an inner wall surface portion, wherein the outer wall surface portion and the inner wall surface portion are provided. The inner wall surface portion is continuous via the upper wall surface portion, and a folding curve is provided at the boundary portion between the outer wall surface portion and the upper wall surface portion and the boundary portion between the inner wall surface portion and the upper wall surface portion, and the outer wall surface portion is provided with a folding curve. Is to solve the above-mentioned problems by forming an opening window portion and having a sheet-like display body interchangeably inserted between the outer wall surface portion and the inner wall surface portion.

In the packaging box of the invention according to claim 1, the sheet-shaped display body is interchangeably attached by simply inserting the sheet-shaped display body between the outer wall surface portion and the inner wall surface portion in the process of assembling the packaging box. In addition, when the sheet-shaped display body is replaced, the peripheral wall having a double structure may be unfolded, so that the display can be changed only by changing the sheet-shaped display body.
Therefore, according to the packaging box of the invention according to claim 1, the packaging box can be configured as having high versatility, and the blank material can be standardized regardless of the type of products stored in the packaging box. Therefore, wasteful resources can be reduced and material costs can be reduced.
Further, since the sheet-shaped display body is inserted between the outer wall surface portion and the inner wall surface portion, the sheet-shaped display body does not come off from the packaging box.
Further, since the sheet-shaped display body is protected by the outer wall surface portion of the peripheral wall, it is possible to prevent the sheet-shaped display body from being damaged, and even when it is used as a packaging box for gift products, the sheet-shaped display body can be prevented from being damaged. It does not spoil the appearance.

According to the configuration according to claim 2, it is possible to surely prevent the sheet-shaped display body from falling out between the outer wall surface portion and the inner wall surface portion, and to ensure that the sheet-shaped display body is in an appropriate position with respect to the opening window portion. Can be located in.
According to the third aspect of the present invention, the sheet-shaped display body can be attached and detached simply by sliding the sheet-shaped display body along the outer wall surface portion, and the holding structure of the sheet-shaped display body becomes complicated. Can be avoided.

According to the configuration according to the fourth aspect of the present invention or the configuration according to the fifth aspect, the sheet-like display body is configured to be easily removable, but the sheet-like display body is positioned appropriately with respect to the opening window portion. Can be reliably positioned. In particular, according to the configuration according to claim 5, when the packaging box is made of corrugated cardboard, the eyes of the corrugated cardboard sheet at the lower edge of the opening in the opening window can be hidden by the sheet-shaped display body, so that the appearance The above aesthetics can be improved.

According to the sixth aspect of the present invention, the sheet-shaped display body is not deformed, and the information displayed on the sheet-shaped display body can be properly displayed.

It is a perspective view which shows the appearance in the example of the packaging box which concerns on 1st Embodiment of this invention. It is a perspective view which shows the state which the lid part of the packaging box shown in FIG. 1 is opened. It is a development view of the packaging box shown in FIG. It is an enlarged view which shows a part of FIG. It is a perspective view which shows the structure in an example of a sheet-like display body. It is a vertical cross-sectional view which shows the structure of the front peripheral wall in the packaging box shown in FIG. It is a view of the front peripheral wall of the packaging box shown in FIG. 1 as seen from the inner surface side, and is shown in a state where the inner wall surface portion is omitted. It is a figure which shows the assembly process of the packaging box shown in FIG. 1, and is the figure which shows the state which the reinforcing flap of the side plate part and the rear surface plate part is bent, and the adhesive piece part of the side plate part is bent by the inclined folding curve. Is. It is a figure which shows the assembly process of the packaging box shown in FIG. 1, and is the figure which shows the process of forming the side peripheral wall and the rear peripheral wall. It is a figure which shows the assembly process of the packaging box shown in FIG. 1, and is the figure which shows the state which the sheet-like display body is attached. It is a figure which shows the assembly process of the packaging box shown in FIG. 1, and is the figure which shows the state in which the front peripheral wall is formed. It is a developed view which shows the structure of the packaging box which concerns on 2nd Embodiment of this invention. It is an enlarged view which shows a part of FIG. It is a view of the front peripheral wall of the packaging box shown in FIG. 9 viewed from the inner surface side, and is shown in a state where the inner wall surface portion is omitted. It is a vertical cross-sectional view which shows the structure of the front peripheral wall in the packaging box shown in FIG.

The packaging box 100 according to the first embodiment of the present invention is formed of a single blank material, and as shown in FIGS. 1 and 2, a front peripheral wall 102 having a double wall structure and a rear peripheral wall having a single wall structure. The packaging box main body 101 in which 103 and each of the pair of side peripheral walls 104 and 104 are erected with respect to the rectangular bottom wall 105 and open upward, and the packaging box main body 101 connected to the upper end of the rear peripheral wall 103. A lid portion 106 for opening and closing the opening of the above is integrally provided.
The blank material can be selected from various paper materials such as corrugated cardboard and cardboard, but the paper quality may be anything, such as those with various coatings or those made of resin other than paper. There may be.

The blank material 110 according to the present embodiment is made of, for example, corrugated cardboard, includes a rectangular bottom plate portion 111 forming the bottom wall 105 of the packaging box 100, and has a front peripheral wall 102 of the packaging box 100. The front plate portion 120, the bottom plate portion 111, the rear surface plate portion 130 forming the rear peripheral wall 103 of the packaging box 100, and the top plate portion 140 forming the lid portion 106 are formed in this order in the lateral direction of the bottom plate portion 111. The side plate portions 150, 150 forming the side peripheral walls 104, 104 of the packaging box 100 are continuously provided on each of the pair of short sides of the bottom plate portion 111 facing each other.
A folding curve L1 is provided at each boundary portion between the front plate portion 120, the rear surface plate portion 130, the side plate portions 150, 150, and the bottom plate portion 111, and the rear surface plate portion 130 and the top plate portion 140 are provided with each other. A folding curve L2 is provided at the boundary portion.

Two engaging holes 112 are provided at the boundary between the bottom plate portion 111 and the front plate portion 120 so as to be separated from each other in the longitudinal direction of the bottom plate portion 111.

As shown in FIG. 4, the front plate portion 120 includes an outer wall surface portion 121 continuous with the bottom plate portion 111, an upper wall surface portion 124 continuous with the outer wall surface portion 121, and an inner wall surface portion 125 continuous with the upper wall surface portion 124. , A folding curve L3 is provided at each boundary portion.
The outer wall surface portion 121 is formed so that a rectangular opening window portion 122 extends along the longitudinal direction of the bottom plate portion 111.
The inner wall surface portion 125 is formed so that two engaging piece portions 126 engaged with the corresponding engaging holes 112 of the bottom plate portion 111 extend outward from the outer end edge, and the lid portion 106 is provided. A notch 127 for finger hooking when opening and closing is formed.

Further, the front plate portion 120 is provided with an insertion piece 161 constituting a lock structure portion 160 that locks the lid portion 106 with respect to the packaging box main body portion 101 in a closed state.
The insertion piece 161 is inserted into the insertion piece main body portion 162 formed by providing a pair of notches C1 extending in parallel with each other from the boundary portion between the outer wall surface portion 121 and the upper wall surface portion 124 toward the bottom plate portion 111 side. The piece main body portion 162 has an insertion tip piece portion 163 that extends continuously to the inner wall surface portion 125 side. The insertion tip piece portion 163 is formed so as to have a width smaller than that of the insertion piece main body portion 162, and the inner wall surface portion 125 is formed with a notch portion 128 so as to surround the periphery of the insertion tip piece portion 163.
The insertion piece 161 is configured to be swingable with respect to the packaging box main body 101 by using a folding curve L4 provided so as to extend in a direction orthogonal to the notch C1 at the end portion of the bottom plate portion 111 of the notch C1 as a bending fulcrum. Has been done. Further, the insertion tip piece portion 163 is configured to be bendable by a folding curve L3 provided at a boundary portion between the outer wall surface portion 121 and the upper wall surface portion 124.

As shown in FIG. 3, reinforcing flaps 131 located on the inner surface side of the adjacent side peripheral walls 104 in the assembled state are continuously provided at both ends of the rear plate portion 130 via the folding curve L5.

The top plate portion 140 forming the lid portion 106 has a bent piece portion 141 at the tip thereof, and the bent piece portion 141 can be bent by a folding curve L6 provided so as to extend in the longitudinal direction of the bottom plate portion 111. It is configured in.
Further, the top plate portion 140 is provided with an insertion piece engaged portion 165 that constitutes the lock structure portion 160 together with the insertion piece 161 provided on the front plate portion 120.
The insertion piece engaged portion 165 forms a projecting piece portion 166 that projects toward the tip end side from the boundary portion between the top plate portion 140 and the bent piece portion 141 in a state where the bent piece portion 141 is bent. It is formed by providing a notch C2 in the. Further, the projecting piece portion 166 is formed with a notch portion 167 for finger hooking.

An upper surface plate portion 151 that supports the lid portion 106 from the inner surface side is foldably connected to the upper edge of each side plate portion 150, and is located on the rear surface plate portion 130 side at the boundary portion with the bottom plate portion 111. It has an adhesive piece portion 152 configured to be bendable by an inclined folding curve 153 provided so as to extend inclined from an end portion toward an upper edge side.
Further, on each side plate portion 150, when the packaging box 100 is assembled, a reinforcing flap 155 inserted between the outer wall surface portion 121 and the inner wall surface portion 125 constituting the front peripheral wall 102 is interposed via a folding curve L7. It is installed continuously. At the position of the upper edge of the reinforcing flap 155 on the side plate portion 150 side, a folding portion 156 as a protrusion is foldably connected, and the folding portion 156 is folded inward and is connected to the outer wall surface portion 121. It is inserted between the inner wall surface portion 125 and the inner wall surface portion 125. Further, on the lower edge of the reinforcing flap 125, an engaging piece portion 158 is formed at a position corresponding to the engaging hole 112 of the bottom plate portion 111.

In the packaging box 100 according to the present embodiment, the sheet-shaped display body 170 is interchangeably inserted and held between the outer wall surface portion 121 and the inner wall surface portion 125.
As shown in FIG. 5, the sheet-shaped display body 170 has a main body portion 171 forming a display surface and engaging portions 172 provided on both sides of the upper edge of the main body portion 171. The engaging portion 172 is configured in a hook shape so as to be engaged with the reinforcing flap 155 of the side plate portion 150.
In the assembled state of the packaging box 100, as shown in FIG. 6, since the reinforcing flap 155 is inserted between the outer wall surface portion 121 and the inner wall surface portion 125 together with the folding portion 156, the sheet-shaped display body 170 is on the back surface thereof. The reinforcing flap 155 is pressed from the side and is held so as to be in close contact with the inner surface of the outer wall surface portion 121.

Thus, the packaging box 100 of the present embodiment includes a position regulating unit that regulates the position of the sheet-shaped display body 170 with respect to the opening window portion 122.
The position regulating unit includes a first position regulating unit that is configured to be in contact with the side edge of the sheet-shaped display body 170 and restricts the movement of the sheet-shaped display body 170 in the direction along the bottom wall 105 with respect to the opening window portion 122, and the seat. It includes a second position regulating unit that regulates the vertical movement of the state display body 170 with respect to the opening window portion 122.
In the present embodiment, as shown in FIGS. 6 and 7, the side edge of the folding portion 156 in contact with the outer edge of the engaging portion 172 of the sheet-shaped display body 170 functions as the first regulating portion 180, and the bottom wall 105. And the upper wall surface portion 124 in the front plate portion 120 functions as the second regulation portion 181.

The packaging box 100 configured in this way is assembled as follows.
First, as shown in FIG. 8A, both side surface plate portions 150 of the blank material 110 are bent along a folding curve L1 so that the inner surface of the side plate portion 150 is brought into contact with the inner surface of the bottom plate portion 111, and the rear surface plate portion 130 is reinforced. The flap 131 is bent along the folding curve L5 so that the inner surface of the reinforcing flap 131 is brought into contact with the inner surface of the rear plate portion 130. Further, the adhesive piece portion 152 of the side plate portion 150 is bent along an inclined folding curve 153 so that the outer surface of the adhesive piece portion 152 is brought into contact with the outer surface of the side plate portion 150.

Next, with a hot melt adhesive (not shown) applied to at least one of the inner surface of the reinforcing flap 131 and the inner surface of the adhesive piece portion 152, the rear plate portion 130 is bent along the folding curve L1 to bend the outer surface of the reinforcing flap 131. And the inner surface of the adhesive piece portion 152 are adhered to each other. Then, as shown in FIG. 8B, by raising the rear surface plate portion 130 so that the rear surface plate portion 130 stands up against the bottom plate portion 111, both side surface plate portions 150 are raised together with the rear surface plate portion 130.

Next, as shown in FIG. 8C, the reinforcing flap 155 connected to the side plate portion 150 is bent along the folding curve L7 to engage the engaging piece portion 158 with the corresponding engaging hole 112 of the bottom plate portion 111. In this state, the sheet-shaped display body 170 is slid-engaged with the reinforcing flap 155. That is, the engaging portion 172 of the sheet-shaped display body 170 is engaged with the upper edge portion of the reinforcing flap 155 at the position between the folding portions 156 of the reinforcing flap 155 related to the both side surface plate portions 150.

Next, in a state where the folded portion 156 of the reinforcing flap 155 is bent so as to face the inner surface of the reinforcing flap 155, the outer wall surface portion 121 of the front plate portion 120 is bent along the folding curve L1, and the upper wall surface portion 124 and the inner wall surface portion 125 are further bent. Each is bent along the folding curve L3, and the engaging piece portion 126 on the inner wall surface portion 125 is engaged with the corresponding engaging hole 112 of the bottom plate portion 111. As a result, as shown in FIG. 8D, the front peripheral wall of the double wall structure in which the sheet-shaped display body 170 is held between the outer wall surface portion 121 and the inner wall surface portion 125 in a state where the position with respect to the opening window portion 122 is restricted. Form 102.

After that, the upper surface plate portion 151 of the side plate portion 150 is bent so as to extend in parallel with the bottom wall 105, the insertion piece 161 in the front plate portion 120 is tilted outward, and the bent piece portion 141 is further folded. With the top plate portion 140 tilted inward at a right angle at the position of the curve L6, the top plate portion 140 is bent along the folding curve L2, and the bent piece portion 141 is folded inside the front peripheral wall 102. Then, by inserting the insertion piece 161 into the insertion piece engaged portion 165, the lid portion 106 is in a locked state in which it is prohibited from being opened, and thus the packaging box 100 shown in FIG. 1 is obtained. Can be done.

As described above, in the packaging box 100 according to the present embodiment, in the process of assembling the packaging box 100, the sheet-shaped display body 170 is slid-engaged with the reinforcing flap 155 serially provided to the side plate portion 150. The sheet-shaped display body 170 can be replaceably attached to the packaging box main body 101 in a state where the sheet-shaped display body 170 is restricted to an appropriate position with respect to the opening window portion 122.
On the other hand, when replacing the sheet-shaped display body 170, the front peripheral wall 102 may be expanded to remove the sheet-shaped display body 170, and then another sheet-shaped display body may be attached again to form the front peripheral wall 102. ..

As shown in FIG. 9, the packaging box 200 according to the second embodiment of the present invention differs in the structure of the front plate portion 220 forming the front peripheral wall having a double wall structure, that is, the holding structure of the sheet-shaped display body 270. Other than that, it has the same configuration as the packaging box 100 according to the first embodiment described above. Hereinafter, the points different from the packaging box 100 according to the first embodiment will be described.

As shown in FIG. 10, the front plate portion 220 forming the front peripheral wall of the packaging box 200 according to the second embodiment has an outer wall surface portion 221 continuous with the bottom plate portion 111 and an upper wall surface portion 224 continuous with the outer wall surface portion 221. And an inner wall surface portion 225 continuous with the upper wall surface portion 224, and a folding curve L3 is provided at each boundary portion.
A rectangular opening window portion 222 is formed on the outer wall surface portion 221 so as to extend along the longitudinal direction of the bottom plate portion 111, and the lower edge of the opening of the opening window portion 222 is formed in the longitudinal direction of the bottom plate portion 111. A movable piece portion 223 having an upper end swingable with a folding curve L8 provided so as to extend along the fold curve L8 as a bending fulcrum is provided. The movable piece portion 223 is formed by providing a notch C3 extending toward the bottom plate portion 111 along the opening side edge of the opening window portion 222.

As shown in FIG. 11, the sheet-shaped display body 270 used in the packaging box 200 according to the present embodiment is continuously downward to the lower edge on both sides of the main body portion 271 forming the display surface and the lower edge of the main body portion 271. It has a pair of engaging legs 273 extending into the.
The sheet-shaped display body 270 is interchangeably mounted by inserting the main body 271 between the outer surface of the movable piece 223 and the inner surface of the outer wall surface 221. In the present embodiment, both side edges of the movable piece portion 223 in contact with the inner edge of the engaging leg portion 273 in the sheet-shaped display body 270 function as the first regulating portion 280, and the lower end portion of the notch C3 forming the movable piece portion 223. And the upper wall surface portion 224 of the front plate portion 220 functions as the second regulation portion 281.

In the assembled state of the packaging box 200, as shown in FIG. 12, the reinforcing flap 155 connected to the side plate portion 150 is inserted between the outer wall surface portion 221 and the inner wall surface portion 225 together with the folding portion 156. The sheet-shaped display body 270 is held so as to be in close contact with the inner surface of the outer wall surface portion 221 in a state where the reinforcing flap 155 is pressed from the back surface side thereof.

The packaging box 200 according to the present embodiment can also be assembled by the same method as the packaging box 100 according to the first embodiment described above, but in the packaging box 200 according to the present embodiment, the sheet-shaped display body 270 is For example, the side plate portion 150 can be attached to the outer wall surface portion 221 before being bent.

Although the embodiment of the packaging box according to the present invention has been described in detail above, the present invention is not limited to the above-described embodiment and varies within the scope of the gist of the present invention described in the claims. It is possible to make changes to.
For example, the packaging box according to the present invention may be composed of a tray-shaped packaging box main body and a lid each formed of one blank sheet.
Further, in the packaging box according to the first embodiment of the present invention, at least one of the four peripheral walls (front peripheral wall) may have a double wall structure, but the side peripheral wall adjacent to the front peripheral wall is It may have a double wall structure. Further, in the case where the packaging box main body and the lid are separated, all the peripheral walls in the packaging box main body may have a double wall structure. Further, the peripheral wall of the lid portion may have a double wall structure.
Furthermore, the sheet-shaped display body may be positioned between the reinforcing flaps of the side plate portions on both sides, and the side edges of the reinforcing flaps may be configured to function as the first regulating portion. Further, the specific configuration of the protrusion is not particularly limited as long as it is configured to function as a position regulating portion that regulates the position of the sheet-shaped display body with respect to the opening window portion.

100, 200 ・ ・ ・ Packaging box 101 ・ ・ ・ Packaging box body 102 ・ ・ ・ Front wall 103 ・ ・ ・ Rear wall 104 ・ ・ ・ Side wall 105 ・ ・ ・ Bottom wall 106 ・ ・ ・ Lid 110 ・ ・ ・Blank material 111 ・ ・ ・ Bottom plate part 112 ・ ・ ・ Engagement holes 120, 220 ・ ・ ・ Front plate part 121,221 ・ ・ ・ Outer wall surface part 122, 222 ・ ・ ・ Opening window part 223 ・ ・ ・ Movable piece part 124 , 224 ・ ・ ・ Upper wall surface part 125, 225 ・ ・ ・ Inner wall surface part 126 ・ ・ ・ Engagement piece part 127 ・ ・ ・ Notch part 128 for finger hook ・ ・ ・ Notch part 130 ・ ・ ・ Rear surface plate part 131 ・ ・・ Reinforcing flap 140 ・ ・ ・ Top plate part 141 ・ ・ ・ Bent piece part 150 ・ ・ ・ Side plate part 151 ・ ・ ・ Top plate part 152 ・ ・ ・ Adhesive piece part 153 ・ ・ ・ Inclined folding curve 155 ・ ・ ・Reinforcing flap 156 ・ ・ ・ Folding part 158 ・ ・ ・ Engaging piece part 160 ・ ・ ・ Lock structure part 161 ・ ・ ・ Inserting piece 162 ・ ・ ・ Inserting piece main body part 163 ・ ・ ・ Inserting tip piece part 165 ・ ・ ・ Inserting One-sided engagement part 166 ・ ・ ・ Projection piece part 167 ・ ・ ・ Notch part for finger hook 170,270 ・ ・ ・ Sheet-shaped display body 171,271 ・ ・ ・ Main body part 172 ・ ・ ・ Engagement part 273 ・ ・ ・Engagement legs 180, 280 ・ ・ ・ 1st regulation part 181,281 ・ ・ ・ 2nd regulation part C1 to C3 ・ ・ ・ Notch L1 to L8 ・ ・ ・ Folding curve

Claims (6)

A packaging box formed of a single blank material, erected against a bottom wall, and provided with at least one peripheral wall having a double structure consisting of an outer wall surface portion and an inner wall surface portion.
The outer wall surface portion and the inner wall surface portion are continuous via the upper wall surface portion, and a folding curve is provided at the boundary portion between the outer wall surface portion and the upper wall surface portion and the boundary portion between the inner wall surface portion and the upper wall surface portion. ,
An opening window portion is formed on the outer wall surface portion.
A packaging box in which a sheet-shaped display body is interchangeably inserted between the outer wall surface portion and the inner wall surface portion. The packaging box according to claim 1, further comprising a position-regulating portion that regulates the movement of the sheet-shaped display body with respect to the opening window portion in a direction along the bottom wall. The packaging box according to claim 2, wherein the position regulating unit is configured to be in contact with a side edge of the sheet-shaped display body. Each of the peripheral walls adjacent to the peripheral wall of the double structure has a reinforcing flap inserted between the outer wall surface portion and the inner wall surface portion.
The sheet-like display body has an engaging portion that is engaged with the reinforcing flap at a position separated from each other on the upper edge.
The packaging according to claim 3, wherein a protrusion is provided on the upper edge of the reinforcing flap, and the side edge of the protrusion in contact with the side edge of the engaging portion functions as the position restricting portion. box. The sheet-shaped display body has a main body portion forming a display surface and a pair of engaging legs that continuously extend downward to the lower edge at positions separated from each other on the lower edge of the main body portion.
A movable piece having a swingable upper end is provided on the lower edge of the opening of the opening window.
The sheet-shaped display body is inserted between the outer surface of the movable piece portion and the inner surface of the outer wall surface portion, and the side edge of the movable piece portion in contact with the side edge of the engaging leg portion functions as the position restricting portion. The packaging box according to claim 3, which is characterized. The packaging box according to any one of claims 1 to 5, wherein the sheet-shaped display body is held so as to be in close contact with the outer wall surface portion.

Images