JP6246565B2 - Packaging paper box and unfolded body of packaging paper box - Google Patents

Description

  The present invention relates to a packaging paper box and a development body of the packaging paper box.

  Conventionally, a packaging box has a rectangular bottom wall and four side walls erected from the bottom wall, and is continuously formed on a box body having an opening above and one of the four side walls. A packaging box having an upper lid that covers the opening of the box body is used. Since the upper lid is formed in a plate shape, there may be a gap between the side wall and the upper lid. For this reason, foreign matter may enter the box body from this gap, and conversely, the contents stored in the box body may jump out of the gap. Furthermore, this packaging box may be crushed when a plurality of the packaging boxes are stacked up and down, and it has been required to secure strength in the vertical direction.

  A packaging box that solves such a problem is disclosed in Patent Document 1. FIG. 9 is a perspective view showing an example of a conventional packaging box described in Patent Document 1. As shown in FIG. As shown in FIG. 9, a conventional packaging box 201 (“paper container” in the invention described in Patent Document 1) is formed by bending one sheet, and has a rectangular bottom surface 202, a bottom surface A container body 206 composed of a front surface 203, both side surfaces 204, and a rear surface 205, a rectangular top surface 207 connected to the upper edge of the rear surface by a broken line, a lid front surface 208 connected to the top surface 207, and both lid side surfaces 209. And a lid body 120 made of the same. The front surface 203 and both side surfaces 204 are provided on double walls having outer walls 203A and 204A and inner walls 203B and 204B facing the outer walls 203A and 204A, respectively.

  In the conventional packaging box 201, the inner side of the bottom surface 202 is arranged so that the portions corresponding to the front surface 203, the both side surfaces 204, and the rear surface 205 of the container body 206 in the unfolded sheet are close to the portion corresponding to the bottom surface 202. The container body 206 is assembled, and the portion corresponding to each of the lid front surface 208 and both lid side surfaces 209 of the lid body 120 in the unfolded sheet is brought close to the portion corresponding to the top surface 207. Folded inward, the lid 120 is assembled, and the packaging box 201 is assembled. In such a conventional packaging box 201, the lid 120 covers the both side surfaces 204 and the rear surface 205 of the container main body 206, so that foreign matter is introduced into the container main body 206 from the gap between the container main body 206 and the lid 120. This prevents the contents from being mixed or the contents stored in the container body 206 from jumping out from the gap.

  However, in the conventional packaging box 201, the portions of the top surface 207 of the unfolded sheet that correspond to the lid front surface 208 and both lid side surfaces 209 of the lid body 120 are brought close to the portion corresponding to the top surface 207. Since it is assembled by folding inward, the lid front surface 208 and both lid side surfaces 209 have a restoring force that approaches the same plane of the top surface 207. Such a restoring force of the lid front surface 208 and both lid side surfaces 209 acts in a direction in which the lid front surface 208 and both lid side surfaces 209 float from the front surface 203 and both side surfaces 204, and thus stably maintains the shape of the packaging box 201. It was difficult. Further, in the conventional packaging box 201, since the sheet is formed by folding each one of the predetermined portions, the number of assembling steps is large and the workability is poor.

JP 2000-326952 A

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described background, and is a development body and packaging of a packaging paper box having a beautiful box shape while stably maintaining a predetermined shape in an assembled state while improving assembling workability. The purpose is to provide a paper box.

The present invention according to claim 1 is a development body of a wrapping paper box formed by folding at least one sheet, a rectangular bottom wall having four edges on the front, rear, left and right, and the bottom wall A box body having an opening in the upper part, a ceiling wall having four edges in the front, rear, left and right and covering the opening; A lid having three cover walls standing from each edge of the wall and covering each of the three side walls of the box body, and standing from a rear edge of the bottom wall, A connecting wall connected to the rear edge, a pair of first folding pieces continuously formed on both the left and right sides of the connecting wall, and a pair of first provided between the left and right side walls and the front side wall. 2 folding pieces, and a pair of third folding pieces provided between the left and right covering walls and the front covering wall, The side wall of the bottom wall continuously formed on the bottom wall, the bottom side inner wall facing the bottom side outer wall, the top wall connecting the bottom side outer wall and the bottom side inner wall on the upper side, and the bottom A bottom wall affixing part that is continuously formed on the lower side of the side inner wall and is affixed to the inner surface of the bottom wall, and the left and right cover walls are formed continuously on the top wall, In a deployment body of a packaging paper box, comprising: a top side inner wall that is continuously formed on and overlapped with a top side outer wall; and a top wall sticking portion that is continuously formed on the top side inner wall and is affixed to the inner surface of the top wall. The sheet is provided such that a front surface thereof constitutes an outer surface of the packaging paper box and a rear surface thereof constitutes an inner surface of the packaging paper box, and a bottom wall corresponding portion corresponding to the bottom wall and a ceiling corresponding to the top wall. A wall equivalent part, a connection wall equivalent part corresponding to the connection wall, and a front corresponding to the side wall on the front side The boundary between the bottom-side outer wall equivalent part and the bottom wall equivalent part, the wall equivalent part and the front covering wall equivalent part corresponding to the front-side covering wall provided on the same plane. The bottom side outer wall equivalent part and the bottom wall equivalent part are folded so that the back surfaces thereof face each other, and the bottom side inner wall equivalent part corresponding to the bottom side inner wall and the upper wall equivalent corresponding to the top wall The bottom wall sticking corresponding to the bottom inner wall equivalent part and the bottom wall sticking part is folded so that the back surfaces of the bottom side inner wall equivalent part and the upper wall equivalent part face each other, with the boundary with the part as a crease. Folded so that the surface of the bottom side inner wall equivalent part and the bottom wall sticking equivalent part faces each other with the boundary with the equivalent part as a crease, and in this state, the back surface of the bottom wall sticking equivalent part is the bottom The dimension in the left-right direction of the upper wall equivalent part from the boundary between the wall equivalent part and the bottom outer wall equivalent part A first fold line is provided at the boundary between the upper wall equivalent portion and the bottom outer wall equivalent portion, and the top side corresponding to the top outer wall. The boundary between the outer wall equivalent part and the top wall equivalent part is a crease, and the back side of the top side outer wall equivalent part and the top wall equivalent part are folded so as to face each other, the top side outer wall equivalent part and the top side Folding the boundary with the top side inner wall equivalent part corresponding to the inner wall, the back side of the top side outer wall equivalent part and the top side inner wall equivalent part are opposed to each other, the top side inner wall equivalent part and the ceiling side Folded so that the surface of the top side inner wall equivalent part and the top wall sticking equivalent part face each other with the boundary with the ceiling wall sticking equivalent part corresponding to the wall sticking part as the crease, in this state, the ceiling wall The back side of the sticking equivalent part is slightly inside the boundary between the top wall equivalent part and the top outer wall equivalent part. And the first folding piece equivalent part, with the boundary between the first folding piece equivalent part corresponding to the pair of first folding pieces and the connecting wall equivalent part being a fold. Folded so that the back surfaces of the connecting wall corresponding portions face each other, and the second folding is performed with a boundary between the second folding piece equivalent portion corresponding to the pair of second folding pieces and the front side wall equivalent portion as a fold. Folded so that the back surfaces of the piece-corresponding part and the front side wall-corresponding part face each other, with the boundary between the third folding piece equivalent part corresponding to the pair of third folding pieces and the front covering wall equivalent part as a fold line A wrapping paper box development body, wherein the back surface of the third folded piece equivalent portion and the front covering wall equivalent portion are folded to face each other.

According to a second aspect of the invention, in the present invention of claim 1 Symbol mounting, part of the back surface of the first folded piece corresponding portion of the pair is said affixed to the bottom of the connecting wall portion corresponding, the pair first A part of the back surface of the part corresponding to the two folded pieces is affixed to the back surface of the part corresponding to the front side wall, and a part of the back surface of the part corresponding to the third folded piece is affixed to the back surface of the part corresponding to the front cover wall. It is characterized by.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the side wall on the front side is opposed to the front bottom side outer wall formed continuously with the bottom wall, and the front bottom side outer wall. A front bottom side inner wall and a front top wall connecting the front bottom side outer wall and the front bottom side inner wall on the upper side, and the front side cover wall is formed continuously with the top wall. A front outer wall corresponding to the front bottom outer wall, and a front outer wall corresponding to the front bottom outer wall. A front bottom side inner wall equivalent portion corresponding to the front bottom side inner wall, and a front upper wall equivalent portion corresponding to the front upper wall, wherein the front covering wall equivalent portion corresponds to the front top side outer wall. A top side outer wall equivalent part, and a front top side inner wall equivalent part corresponding to the front top side inner wall, The third fold is formed such that the second fold piece equivalent portion and the front bottom side outer wall equivalent portion are opposed to each other with the boundary between the fold piece equivalent portion and the front bottom side outer wall equivalent portion as a crease. The front bottom side outer wall is folded so that the back surfaces of the third folding piece equivalent part and the front top side outer wall equivalent part face each other with the boundary between the piece equivalent part and the front top side outer wall equivalent part as a crease. The boundary between the corresponding portion and the front upper wall equivalent portion is a crease, and the front upper wall equivalent portion is the second folded piece equivalent portion between the front upper wall equivalent portion and the front bottom side outer wall equivalent portion. And a second fold line is provided at the boundary between the front upper wall equivalent part and the front bottom side inner wall equivalent part, and the front top side outer wall equivalent part and the front top side inner wall. The front top side inner wall equivalent part is the third fold with the boundary with the equivalent part as a crease. Characterized in that it is folded pieces corresponding portion so as to sandwich between the between the front top side inner wall portion corresponding front top side wall corresponding part.

According to a fourth aspect of the present invention, in the present invention according to any one of the first to third aspects, the folds are formed by being pressed using a machine. To do.

According to a fifth aspect of the present invention, in the present invention according to any one of the first to fourth aspects, the pair of the first folding piece equivalent portions includes the first folding piece equivalent portion and the top side. It has a slit between the outer wall equivalent part and is continuously formed in the bottom outer wall equivalent part, or has a slit between the first folded piece equivalent part and the bottom outer wall equivalent part, It is formed continuously in the portion corresponding to the top side outer wall.

A sixth aspect of the present invention is a wrapping paper box formed by folding the unfolded body of the wrapping paper box according to any one of the first to fifth aspects, and corresponds to the left and right side walls. The left and right side wall equivalent parts are folded up in a direction away from each other with respect to the bottom wall equivalent part, whereby the front side wall equivalent part and the connection wall equivalent part are folded up, and the three side walls are However, the right and left side cover wall equivalent parts corresponding to the left and right cover walls are folded up in a direction away from each other with respect to the top wall equivalent part. Thus, the front cover wall equivalent portion is folded up, and the three cover walls are erected on the left and right and front edges of the top wall, and the middle of the first folding piece equivalent portion is a fold. The first folds are folded so that the surfaces face each other. A piece is formed, and the second folded piece is folded so that the surfaces thereof are opposed to each other with the middle part of the second folded piece corresponding part as a crease, the second folded piece is formed, and the middle part of the third folded piece equivalent part is formed with a crease. A wrapping paper box, wherein the third folded piece is formed so as to be opposed to each other.

The present invention of claim 7, wherein, in the present invention described in claim 6, at the boundary position between the bottom wall and the connecting wall, includes a support plate for supporting the right and left side walls of the first folding piece, A first triangular piece and a second triangular piece continuously formed on the first triangular piece, and a boundary between the first triangular piece and the second triangular piece is used as a fold, and the first triangular piece and the Folded so that the surfaces of the second triangular piece face each other, and the support plate is provided so as to face the inner surface of the connecting wall, and a pair of insertions continuously formed on the standing plate And the pair of insertion pieces are folded between the first triangular piece and the second triangular piece, respectively, so that the standing plate and the pair of insertion pieces are opposed to each other. The support plate is attached to the box body by being inserted from above into the box.
The present invention according to claim 8 is a wrapping paper box formed by folding at least one sheet, a rectangular bottom wall having four edges on the front, rear, left and right, left and right of the bottom wall, and Three side walls erected from each edge on the front side, a box body having an opening on the upper side, a ceiling wall having four edges on the front, rear, left, and right, covering the opening, and each of the ceiling walls A lid having three cover walls that are erected from an edge and respectively cover the three side walls of the box body, and are erected from an edge on the rear side of the bottom wall, A connecting wall connected to the edge, a pair of first folding pieces continuously formed on the left and right sides of the connecting wall, and a pair of second folding pieces provided between the left and right side walls and the side wall on the front side. And a pair of third folding pieces provided between the left and right cover walls and the front cover wall, A bottom outer wall continuously formed on the bottom wall; a bottom inner wall facing the bottom outer wall; an upper wall connecting the bottom outer wall and the bottom inner wall on the upper side; and the bottom inner wall A bottom wall affixing portion that is continuously formed on the lower side of the bottom wall and is affixed to the inner surface of the bottom wall, and the left and right cover walls are continuously formed on the top wall. An inner wall continuously formed and overlaid on the outer wall, and the sheet is provided such that its surface constitutes the outer surface of the packaging paper box and its rear surface constitutes the inner surface of the packaging paper box, A bottom wall equivalent part corresponding to the bottom wall, a top wall equivalent part corresponding to the top wall, a connection wall equivalent part corresponding to the connection wall, a front side wall equivalent part corresponding to the side wall on the front side, and a front side A front cover wall corresponding portion corresponding to the cover wall is provided on the same plane and is coupled to the bottom outer wall. The bottom side outer wall equivalent part and the bottom wall equivalent part are folded at a boundary between the bottom side outer wall equivalent part and the bottom wall equivalent part so as to face each other, and correspond to the bottom inner wall. The bottom side inner wall equivalent part and the upper wall equivalent part corresponding to the upper wall are folded so that the back surfaces of the bottom side inner wall equivalent part and the upper wall equivalent part face each other, The boundary between the inner wall equivalent part and the bottom wall sticking equivalent part corresponding to the bottom wall sticking part is folded, and the surfaces of the bottom inner wall equivalent part and the bottom wall sticking equivalent part are folded so as to face each other. In the state, the back surface of the bottom wall corresponding portion is inside the portion corresponding to the left and right dimensions of the upper wall corresponding portion from the boundary between the bottom wall corresponding portion and the bottom outer wall corresponding portion, A first fold line is attached to the back surface, and a boundary between the upper wall equivalent part and the bottom outer wall equivalent part is Folded so that the back surfaces of the top side outer wall equivalent part and the top wall equivalent part face each other, with the boundary between the top side outer wall equivalent part corresponding to the top side outer wall and the top wall equivalent part being a crease. And a back surface of the top side outer wall equivalent part and the top side inner wall equivalent part are opposed to each other with a crease as a boundary between the top side outer wall equivalent part and the top side inner wall equivalent part corresponding to the top side inner wall. In this state, a part of the back surface of the top side outer wall equivalent part is affixed to the back side of the top side inner wall equivalent part, and the first folding piece equivalent part corresponding to the pair of first folding pieces and the A second fold piece corresponding to the pair of second fold pieces, with the boundary with the linking wall equivalent portion as a crease, folded so that the back surfaces of the first fold piece equivalent portion and the linking wall equivalent portion face each other. A boundary between the corresponding portion and the front side wall corresponding portion as a crease, and the second folded piece corresponding portion; The third side is folded so that the back surfaces of the front side wall equivalent part face each other, and a boundary between the third folding piece equivalent part corresponding to the pair of third folding pieces and the front covering wall equivalent part is used as the fold. Folding piece equivalent part and the front covering wall equivalent part are folded so that the back surfaces thereof face each other, and the left and right side wall equivalent parts corresponding to the left and right side walls are separated from each other with respect to the bottom wall equivalent part. By folding up, the front side wall equivalent part and the connecting wall equivalent part are folded up, and the three side walls are erected on the left and right and front side edges of the bottom wall, The left and right side cover wall equivalent parts corresponding to the cover walls are folded up in directions away from each other with respect to the top wall equivalent part, so that the front cover wall equivalent part is folded up, and the three cover walls are Standing on the left and right and front edge of the top wall The first folding piece is formed so that the surfaces thereof are opposed to each other with the middle part of the first folding piece equivalent part as a crease, and the surfaces are formed with the middle part of the second folding piece equivalent part as a crease. Folded so as to face each other, the second folded piece is formed, and the third folded piece is formed such that the surfaces are opposed to each other with the middle part of the third folded piece corresponding to the crease, A support plate for supporting the left and right side walls is provided at a boundary position between a bottom wall and the connecting wall, and the first folding piece is a first triangle piece and a second triangle formed continuously with the first triangle piece. And the support plate is folded so that the surfaces of the first triangular piece and the second triangular piece are opposed to each other with the boundary between the first triangular piece and the second triangular piece as a crease. A standing plate provided opposite to the inner surface of the connecting wall, and A pair of insertion pieces continuously formed on the plate, wherein the standing plate and the pair of insertion pieces are folded so as to face each other, and the pair of insertion pieces are respectively the first triangle. A wrapping paper box which is inserted from above between a piece and the second triangular piece, and wherein the support plate is mounted on the box body.

  According to the expanded body of the wrapping paper box according to claim 1, the left and right side wall equivalent parts folded inward are folded up to the side away from each other in the left and right direction with respect to the bottom wall equivalent part, thereby being equivalent to the upper wall. The first fold line provided at the boundary between the portion and the bottom-side outer wall equivalent portion is folded as a crease, so that side walls standing on the left and right edges of the bottom wall are formed. At substantially the same time, the left and right side walls can be formed into a double wall. As described above, since the left and right side walls can be easily formed as a double wall, the assembling workability can be improved.

  Furthermore, since the lid is assembled by folding the left and right cover wall equivalent parts folded to the left and right sides with respect to the top wall equivalent part, in the packaging paper box in the assembled state, A restoring force that acts in a direction approaching the side wall of the box body is generated in the covering wall. That is, the covering wall is provided in a state where a force approaching the side wall is applied, so that the box shape can be made beautiful while stably maintaining the predetermined shape in the assembled packaging paper box. That is, it is possible to provide an expanded body of a packaging paper box having a beautiful box shape while stably maintaining a predetermined shape in an assembled state while improving assembling workability.

  Moreover, since the expansion body of the packaging paper box according to claim 1 is formed from a single sheet, for example, when forming a low-wrapping packaging paper box in an assembled state, the sheet is used in a substantially rectangular shape. The paper (material) can be used with good productivity.

  In addition, since the development body of the packaging paper box according to claim 1 is formed in a plate shape having a small thickness as a whole and is provided so as to have a small area in plan view, the packaging paper box of the finished product It is more compact and can save space during transportation and storage.

In addition, by folding the left and right side wall equivalent parts folded inward to the side away from each other in the left-right direction with respect to the bottom wall equivalent part, it is provided at the boundary between the upper wall equivalent part and the bottom outer wall equivalent part. The first fold line is folded as a fold, and side walls are formed standing on the left and right edges of the bottom wall. At substantially the same time, the left and right side walls can be formed into a double wall. As described above, since the left and right side walls can be easily formed as a double wall, the assembling workability can be improved.

  The wrapping paper box is provided with a top wall sticking portion that is continuously formed on the top side inner wall and stuck to the inner surface of the top wall, and includes a top side inner wall equivalent portion and a top wall sticking equivalent portion corresponding to the top wall sticking portion. Folded so that the front side of the top wall equivalent part and the top wall sticking part face each other with the crease as the crease, and in this state, the back of the top wall sticking part corresponds to the top wall equivalent part and the top outer wall equivalent Affixed to the back surface of the portion corresponding to the top wall, slightly inside the boundary of the portion. That is, the back surface of the top wall equivalent part is a little inside the boundary between the top wall equivalent part and the top outer wall equivalent part, and is attached to the back surface of the top wall equivalent part. And it will be inclined and provided so that it may approach a left-right side wall as it goes to the tip on the bottom wall side from the base of the top wall side of the right-and-left covering wall in the state where the lid covered the opening of the box body. That is, the covering wall is provided in a slightly inclined state so as to be close to the side wall. Furthermore, since the lid is assembled by folding the left and right cover wall equivalent parts to the side away from each other in the left-right direction with respect to the top wall equivalent part, the cover wall can be moved closer to the side wall. Therefore, in the packaging paper box in the assembled state, the box shape can be made more beautiful while maintaining the predetermined shape more stably.

According to the expansion body of the packaging paper box according to claim 2, a part of the pair of first folding piece equivalent parts is affixed to the connecting wall equivalent part, and a part of the pair of second folding piece equivalent parts is the front part. Since a part of the pair of third folding piece equivalent parts is affixed to the front covering wall equivalent part, the left and right side wall equivalent parts that are folded inward are attached to the bottom wall equivalent part. The connecting wall equivalent part is folded up via the first folding piece equivalent part and the front side wall equivalent part is passed through the second folding piece equivalent part. At the same time, the first crease provided at the boundary between the upper wall equivalent portion and the bottom outer wall equivalent portion is folded as a fold, and the connecting wall and the left and right and front sides of the bottom wall are folded. Three side walls standing on the edge are formed. At substantially the same time, the left and right side walls can be formed into a double wall. Moreover, since a part of a pair of 3rd folding piece equivalent part is affixed on the front cover wall equivalent part, a left-right side cover wall equivalent part is on the side which mutually separates in the left-right direction with respect to a ceiling wall equivalent part. By folding, the front side cover wall equivalent part is folded up via the third folding piece equivalent part, and three cover walls standing on the left and right and front side edges of the top wall are formed. Thus, a part of the pair of first folding piece equivalent parts is affixed to the connecting wall equivalent part, and a part of the pair of second folding piece equivalent parts is affixed to the front side wall equivalent part, The connecting wall equivalent part is assisted by the first folding piece equivalent part and folded through the first folding piece equivalent part, and the front side wall equivalent part is assisted by the second folding piece equivalent part. The amount of work in the step of folding the connecting wall equivalent portion and the step of folding the front cover wall equivalent portion can be reduced easily and easily. Since the left and right side walls can be formed as a double wall, the assembly workability can be improved.

According to the development body of the packaging paper box according to claim 3 , the connecting wall equivalent portion is the first by folding the left and right side wall equivalent portions to the left and right side away from the bottom wall equivalent portion. The front side wall equivalent part is folded up via the second folding piece equivalent part while being folded up via the folding piece equivalent part, and at the same time the second folding line is folded as a crease. A front side wall having an outer wall, a front bottom side inner wall, and a front upper wall is formed, so that the left and right side wall equivalent parts are separated from each other in the left and right direction with respect to the bottom wall equivalent part. In one step of folding, the connecting wall and the three side walls standing on the left and right and front edges of the bottom wall are formed substantially simultaneously. At substantially the same time, the left and right and front side walls can be formed into a double wall.

  Further, by folding the left and right side cover wall equivalent parts to the left and right sides away from the top wall equivalent part, the front side cover wall equivalent part is folded up via the third folding piece equivalent part. Thus, a front side wall having a front top side outer wall and a front top side inner wall is formed, so that the left and right cover wall equivalent parts are separated from each other in the left and right direction with respect to the top wall equivalent part. In one step of folding to the side, three cover walls are formed standing on the left and right and front edges of the top wall. That is, the front side wall and the front cover wall can be formed without increasing the number of steps. At substantially the same time, the front side wall can be formed into a double wall. Therefore, the assembly workability can be further improved.

According to the expanded body of the wrapping paper box of claim 4 , a greater force is applied while improving productivity than when various folds are formed manually without using a machine. . Particularly, in the assembled state, the restoring force acting on the cover wall in the direction approaching the side wall of the box body can be increased. Therefore, it is possible to further improve the productivity and further enhance the box shape of the packaging paper box in the assembled state while stably maintaining the predetermined shape.

According to the expanded body of the packaging paper box according to claim 5 , the pair of first folding piece equivalent portions has a slit between the first folding piece equivalent portion and the top outer wall equivalent portion, and corresponds to the bottom outer wall. The first folded piece equivalent portion is folded inward with the boundary between the first folded piece equivalent portion and the bottom outer wall equivalent portion as a fold, and the packaging paper box is assembled. Even when the lid is opened in a state where the cover is opened, the connecting wall is connected to the left and right side walls via the first folding piece, and the box is composed of the bottom wall, the three side walls, and the connecting wall. The shape of the main body can be maintained. In addition, when a slit is provided between the first folding piece equivalent part and the bottom outer wall equivalent part and is continuously formed on the top outer wall equivalent part, the first folding piece equivalent part is the first folding part. The boundary between the piece-corresponding portion and the top-side outer wall-corresponding portion is folded inward, and the cutting line at the rear end of the top-side outer wall corresponding portion is not exposed when the packaging paper box is assembled. Therefore, the box shape can be made beautiful.

According to the wrapping paper box of claim 6 , since the left and right side walls are formed in the double wall, the wrapping paper box is not crushed even when stacked up and down, and the vertical direction The strength of the can be ensured. Also, the left and right and front side cover walls cover the left and right and front side walls, respectively, so that no gap is generated between the box body and the lid as in the conventional packaging box. It is possible to prevent the contents stored in the container from jumping out. Such a wrapping paper box is folded up with the left and right side wall equivalent parts folded inward to the side wall side away from the bottom wall equivalent part, and the left and right side cover wall equivalent parts folded inward. It can be formed by an easy operation of folding the top wall equivalent part to the side away from each other in the left-right direction. Furthermore, since the packaging paper box is formed by folding one sheet, it can be manufactured at low cost.

  Furthermore, since the lid is assembled by folding up the left and right side cover wall equivalent parts folded inward to the sides away from each other in the left and right direction, the packaging paper box is assembled. Thus, the covering wall generates a restoring force that acts in a direction approaching the side wall of the box body. That is, the covering wall is provided in a state where a force approaching the side wall is applied, so that the packaging paper box in the assembled state can be maintained in a predetermined shape and the box shape can be made beautiful. . That is, it is possible to provide a wrapping paper box having a beautiful box shape while maintaining a predetermined shape in an assembled state while improving assembling workability.

According to the wrapping paper box of the seventh aspect, the standing plate supports the side wall in the left-right direction so that the left and right side walls do not fall toward the side in the left-right direction. Further, since the standing plate is provided to face the inner surface of the connecting wall, for example, when the contents are stored and stacked in the box body, the connecting wall that is most likely to buckle is reinforced. The strength in the vertical direction of the entire packaging paper box can be improved. Therefore, for example, it is possible to improve load resistance when contents are stored and stacked in a packaging paper box. Further, by providing the standing plate, the space inside the box body is maintained even when the lid is opened, and the shape of the opened packaging paper box can be made beautiful.

It is a perspective view which shows the packaging paper box concerning one embodiment of this invention, (A) shows the state which the cover closed, (B) shows the state which the cover opened to the middle, respectively. It is a top view which shows the expansion body of the packaging paper box shown by FIG. It is a perspective view which shows a mode that a packaging paper box is assembled from the expansion body of the packaging paper box shown by FIG. It is a top view which shows the sheet | seat comprised by stamping one sheet | seat material before manufacture of the expansion | deployment body of the packaging paper box shown by FIG. It is a top view which shows a mode that the expansion body of the packaging paper box shown by FIG. 2 is manufactured. It is a perspective view which shows the modification of the packaging paper box shown by FIG. 1, and shows the state which the lid | cover opened. (A) is a perspective view which shows a mode that the support plate assembled | attached to the packaging paper box shown by FIG. 1 is assembled | attached to a packaging paper box, (B) is a support plate shown by (A) packaging. It is a perspective view which shows the state assembled | attached to the paper box. (A) is a figure which shows the modification of the support plate shown by FIG. 7, (B) is a figure which shows the expansion | deployment state of the support plate shown by (A). It is a perspective view which shows an example of the conventional packaging box described in patent document 1. FIG.

  Hereinafter, the manufacturing method of the packaging paper box concerning the present invention, an embodiment which is an exemplary mode and its expansion object, and the expansion object of a packaging paper box is explained with reference to FIGS.

(Wrapping paper box)
1-8, the code | symbol 1 is the packaging paper box concerning one embodiment of this invention. The wrapping paper box 1 includes a box body 2 having an opening on the upper side, a “covering position” that covers the opening of the box body 2, a lid 3 that is rotatable to an “exposing position” that exposes the opening, A connecting wall 4 that connects the box body 2 and the lid 3, a pair of first folding pieces 5 that are continuously formed on the connecting wall 4 and draw the lid 3 toward the “covering position”, and the box body 2 The pair of second folding pieces 6 provided at the inner corner on the front side and the pair of third folding pieces 7 provided at the inner corner on the front side of the lid 3 are integrally provided. ing. This wrapping paper box 1 is a “wrapping paper box unfolded body 1A, in which a sheet 101 formed by punching a sheet of paper is folded into a plate having a small thickness as a whole by folding a sheet 101 with a predetermined position as a crease. (Shown in FIG. 2) ”is formed by folding up at a predetermined position.

  The box body 2 has a rectangular bottom wall 8 having four edges a, f, and s on the front, rear, left and right, and three side walls 9 erected from the left and right and front edges a, f of the bottom wall 8. 10 and 11. Here, in this specification, the depth direction of the wrapping paper box 1 is indicated by an arrow Y, the width direction of the wrapping paper box 1 is indicated by an arrow X, and the thickness direction of the bottom wall 8. A direction orthogonal to the arrow X is indicated by an arrow Z. Furthermore, the arrow Y direction may be referred to as the front-rear direction, the arrow X direction may be referred to as the left-right direction, and the arrow Z direction may be referred to as the up-down direction or the height direction. Further, in the front-rear direction, the front side in FIG. 1 is referred to as “front”, and the back side is referred to as “rear”. FIG. 4 is a plan view showing a sheet formed by punching one sheet of paper before manufacturing the unfolded body of the packaging paper box. In FIG. 4, the back surface of the sheet 101 that is the inner surface side of the packaging paper box 1 faces upward, and the surface of the sheet 101 that is the outer surface side of the packaging paper box 1 faces downward. Here, the reference numerals given to “folds”, “folding lines”, “edges”, and “boundaries” used in this specification are described only in FIG. Even if it is a case, the same code | symbol is attached | subjected. Further, each “fold” used in the present specification is formed by pressing the sheet 101, and is formed in order to easily fold a predetermined position of the sheet 101.

  Of the three side walls 9, 10, 11, the left and right side walls 9, 10 are respectively provided with first and second bottom outer walls (bottom side outer walls) 20, 21 continuously formed on the edge a of the bottom wall 8. First and second bottom-side inner walls (bottom-side inner walls) 22 and 23 facing the first and second bottom-side outer walls 20 and 21, and the first and second bottom-side outer walls 20 and 21 and the first and second First and second upper walls (upper walls) 24 and 25 that connect the bottom inner walls 22 and 23 on the upper side and face the bottom wall 8, and lower sides of the first and second bottom inner walls 22 and 23. , And first and second bottom wall sticking portions (bottom wall sticking portions) 26 and 27 attached to the inner surface of the bottom wall 8. The first bottom wall sticking portion 26 is provided symmetrically with the second bottom wall sticking portion 27. Thus, in the part provided in the left-right symmetry, it may be hidden and cannot be seen depending on the angle of the drawing. In such a case, only the side appearing in the drawing is shown, and the other side may be omitted. Further, as shown by reference numeral 26, in a portion not shown, the first bottom wall sticking equivalent part 26A corresponding to the first bottom wall sticking part 26 and the first bottom wall sticking equivalent part 26A are provided. In some cases, the illustration of the bottom plate attaching plate 126 is omitted.

  In addition, the part which the code | symbol of the 1 digit number stand in the packaging paper box 1 and the 2 digit number stand shows is equivalent to the part to which the code | symbol which the last 2 digits correspond in the code | symbol of the 100 series in the manufacturing method of the expansion | deployment body of a packaging paper box To do. Accordingly, the illustration of the reference numeral of the packaging paper box 1 may be omitted by the illustration of the part to which the reference numeral of the 100s in the manufacturing method of the development body of the packaging paper box is attached.

  The left and right side walls 9, 10 are folded in a mountain fold with the boundary between the bottom wall 8 and each of the first and second bottom outer walls 20, 21 as a crease a, and each of the first, second bottom outer walls 20, 21 and the first and second upper walls 24 and 25 are folded in a mountain fold with the fold line b (first fold line) as the first and second upper walls 24 and 25 and the first and second walls. The boundary between the bottom side inner walls 22 and 23 is folded in a mountain fold with a crease c, and the boundary between each of the first and second bottom side inner walls 22 and 23 and each of the first and second bottom wall affixing portions 26 and 27 is folded. It is formed as a valley fold as d.

  Here, “mountain fold” in this specification refers to folding in a mountain shape when viewed from the surface side of the sheet 101 shown in FIG. 4, and “valley fold” refers to in the sheet 101 shown in FIG. Each fold is described as a valley shape when viewed from the surface side.

  The first and second bottom-side outer walls 20 and 21 are provided upright from the left and right edges a of the bottom wall 8. Each of the first and second bottom inner walls 22, 23 is closer to the boundary between the bottom wall 8 and each of the first and second bottom outer walls 20, 21 (left and right edges a of the bottom wall 8). The second upper walls 24 and 25 are provided in parallel with the first and second bottom outer walls 20 and 21 on the inner side by the width dimension (left-right dimension). A pair of bottom-side protruding pieces 28 are provided at both front and rear ends of each of the first and second bottom-side inner walls 22 and 23. Each of the first and second bottom inner walls 22 and 23 is provided on the rear side of the front end of each of the first and second upper walls 24 and 25 by cutting out the front ends thereof. Of the bottom-side protruding pieces 28, the front-side bottom protruding piece 28 is provided so as to overlap the front side of the third bottom-side inner wall 32 of the front-side side wall 11. The front-side bottom protruding piece 28 folds the boundary between each of the first and second bottom inner walls 22 and 23 and the bottom protruding piece 28 at the front end of each of the first and second bottom inner walls 22 and 23. By being folded into valley folds as e, the bottom-side protruding pieces 28 on the front side of the first and second bottom-side inner walls 22 and 23 are provided so as to protrude toward the side in the left-right direction (arrow X direction). Yes. Each front-side bottom protruding piece 28 is spaced apart from the bottom wall 8 and provided on the upper end side. Further, between the first and second bottom-side outer walls 20 and 21 and the first and second bottom-side inner walls 22 and 23, the first and second bottom wall sticking portions 26 and 27 respectively connect the first and second bottom-side outer walls 20 and 21. An extension piece 29 formed to extend toward the second bottom-side outer walls 20 and 21 is provided. The extending piece 29 has the first and second bottom inner walls 22 and 23 on the inner side by the width dimension of the first and second upper walls 24 and 25 (the extending direction of the extending piece 29). It is formed for positioning, and is formed so that its extension dimension is substantially equal to the width dimension (left-right dimension) of each of the first and second upper walls 24 and 25. The extension piece 29 is obtained by forming a cut 129 (shown in FIG. 4) in each of the first and second bottom inner walls 22 and 23, and each first and second bottom wall sticking portion. 26, 27 and each of the first and second bottom inner walls 22, 23 are formed in a trapezoidal shape having sides parallel to the boundary.

  Of the three side walls 9, 10, 11, a front side wall 11 (hereinafter referred to as a front side wall 11) includes a third bottom side outer wall 31 continuously formed on the front side edge f of the bottom wall 8, and the first side wall 11. A third bottom-side inner wall 32 facing the three bottom-side outer walls 31; a third upper wall 33 that connects the third bottom-side outer wall 31 and the third bottom-side inner wall 32 on the upper side and faces the bottom wall 8; A bottom wall overlapping portion (front bottom wall overlapping portion) 34 that is continuously formed on the lower side of the third bottom side inner wall 32 and overlaps the bottom wall 8.

  The front side wall 11 is folded in a mountain fold with the boundary between the bottom wall 8 and the third bottom-side outer wall 31 as a fold f, and is folded in a mountain with the boundary between the third bottom-side outer wall 31 and the third upper wall 33 as a fold g. Folded into a mountain fold with the boundary between the third upper wall 33 and the third bottom side inner wall 32 as a crease h, and into a valley fold with the boundary between the third bottom side inner wall 32 and the bottom wall overlapping portion 34 as a fold line i. It is folded and formed.

  The third bottom-side outer wall 31 is provided upright from the front edge f of the bottom wall 8. The third bottom-side inner wall 32 is inside by the width dimension (front-rear dimension) of the third upper wall 33 from the boundary between the bottom wall 8 and the third bottom-side outer wall 31 (the edge f on the front side of the bottom wall 8). Is provided. The third bottom-side outer wall 31 and the third top wall 33 are arranged such that the left and right dimensions are substantially equal to each other, and the dimension between the left and right edges a of the bottom wall 8 (first and second bottom sides). The dimension between the outer walls 20 and 21 is substantially the same. The third bottom side inner wall 32 and the bottom wall overlapping portion 34 have a lateral dimension of the third bottom side outer wall 31 and the third upper wall 33 corresponding to the total width dimension of the first and second upper walls 24 and 25. It is formed to be smaller than the left and right dimensions.

  Further, the inner corners of the left and right side walls 9 and 10 and the front side wall 11 are bottoms for maintaining the locked state of the first and second bottom side inner walls 22 and 23 and the third bottom side inner wall 32. A side locking portion 35 is provided. The bottom-side locking portion 35 includes a bottom-side locking piece 36 that extends from the vicinity of the lower end portion of the third bottom-side inner wall 32 toward the sides in the left-right direction (arrow X direction), and the first and second portions. And a bottom-side latch receiving portion 37 that is provided on the bottom inner walls 22 and 23 and latches the bottom-side latching piece 36. The bottom side latch receiving portion 37 is a part of the front edge e of each of the first and second bottom inner walls 22 and 23, and the bottom protruding piece of each of the first and second bottom inner walls 22 and 23. 28 on the lower side. In such a bottom side locking portion 35, the bottom side locking piece 36 rides on the bottom side locking receiving portion 37 and climbs to the front side of the bottom side locking receiving portion 37. The bottom side latch receiving portion 37 is latched to maintain the latched state between the first and second bottom side inner walls 22 and 23 and the third bottom side inner wall 32.

  The lid 3 is erected from a rectangular ceiling wall 12 covering the opening of the box body 2 and the respective edges j and p on the left and right and front sides of the ceiling wall 12, and the three side walls 9 and 10 of the box body 2. , 11 and three covering walls 13, 14, and 15, respectively. The top wall 12 is formed such that its left and right dimensions and front and rear dimensions are slightly larger than the left and right dimensions and front and rear dimensions of the bottom wall 8.

  Of the three covering walls 13, 14, 15, the left and right covering walls 13, 14 are first and second top-side outer walls (top-side outer walls) 40, 41 continuously formed on the respective edges j of the top wall 12. And first and second top side inner walls (top side inner walls) 42 and 43 facing the first and second top side outer walls 40 and 41, and the upper side of the first and second top side inner walls 42 and 43, respectively. And first and second top wall sticking portions (top wall sticking portions) 44 and 45 that are continuously formed and attached to the inner surface of the top wall 12. The top wall 12 is formed so that its left-right dimension is larger than the left-right dimension of the bottom wall 8 by at least the paper thickness dimension. The first and second top side inner walls 42 and 43 are formed so that the height dimension thereof is slightly smaller than the height dimension of the first and second top side outer walls 40 and 41. Further, the back surfaces of the first and second ceiling wall sticking portions 44 and 45 are slightly inside the side (the side approaching each other in the left-right direction) from the boundary between the ceiling wall 12 and the first and second ceiling-side outer walls 40 and 41. Attached to the back surface of the top wall 12. As described above, the first and second top side inner walls 42 and 43 are formed so that the height dimension thereof is slightly smaller than the height dimension of the first and second top side outer walls 40 and 41. When the back surfaces of the second ceiling wall attaching portions 44 and 45 are attached to the back surface of the ceiling wall 12 slightly inside the boundary between the ceiling wall 12 and the first and second ceiling side outer walls 40 and 41. In the assembled state of the wrapping paper box 1 and the cover 3 covering the opening of the box body 2, the first and second top side outer walls 40 and 41 are connected to the bottom wall 8 side from the upper end on the top wall 12 side. It is inclined and provided so that it may approach the left and right side walls 9 and 10 as it goes to the lower end.

  The left and right covering walls 13, 14 are folded in a mountain fold with the boundary between the top wall 12 and the first and second top side outer walls 40, 41 as creases j, and the first and second top side outer walls 40 are respectively. , 41 and the first and second top side inner walls 42, 43 are folded in a mountain fold with the crease k as the crease k, and the first and second top side inner walls 42, 43 and the first and second top wall affixed. It is formed by being folded into a valley fold with the boundary between the portions 44 and 45 as a crease m.

  The first and second top-side outer walls 40 and 41 are provided upright from the left and right edges j of the top wall 12. The front ends of the first and second top inner walls 42 and 43 are provided slightly behind the front end of the third top outer wall 51 of the front cover wall 15. In addition, a pair of top-side protruding pieces 46 are provided at the front ends of the first and second top-side inner walls 42 and 43 so as to overlap the front side of the third top-side inner wall 52 of the front cover wall 15. ing. The pair of top-side protruding pieces 46 folds the boundary between the first and second top-side inner walls 42 and 43 and the top-side protruding piece 46 at the front end portions of the first and second top-side inner walls 42 and 43, respectively. As a result of being folded into a valley fold, the pair of top side protruding pieces 46 are provided so as to protrude on the side approaching each other in the left-right direction (arrow X direction). The pair of top side protruding pieces 46 are provided away from the top wall 12 and biased toward the lower end side.

  Of the three covering walls 13, 14, 15, the front covering wall 15 (hereinafter referred to as the front covering wall 15) includes a third top outer wall 51 continuously formed on the front edge p of the top wall 12. The third top side inner wall 52 facing the third top side outer wall 51 and the top wall overlapping part (the front ceiling wall overlapping part) which is continuously formed above the third top side inner wall 52 and overlaps the top wall 12. 53).

  The front covering wall 15 is folded in a mountain fold with the boundary between the top wall 12 and the third top side outer wall 51 as a crease p, and a mountain with the boundary between the third top side outer wall 51 and the third top side inner wall 52 as a crease q. It is folded and formed into a valley fold with the boundary between the third top side inner wall 52 and the third top side overlapping portion 53 as a crease r.

  The third top side outer wall 51 is provided upright from the front edge p of the top wall 12. The third top side inner wall 52 is provided slightly behind the boundary between the top wall 12 and the third top side outer wall 51 (the edge p on the front side of the top wall 12). The third top-side outer wall 51, the third top-side inner wall 52, and the top-wall overlap portion 53 have dimensions that are substantially equal to each other and that are between the left and right edges j of the top wall 12 (first 1 and the dimension between the second top side outer walls 40 and 41).

  Further, in order to maintain the locked state of the first and second top side inner walls 42 and 43 and the third top side inner wall 52 at the inner corners of the left and right covering walls 13 and 14 and the front covering wall 15. The top side latching | locking part 54 is provided. The top side locking portion 54 extends from the vicinity of the upper end portion of the third top side inner wall 52 to the sides away from each other in the left-right direction (arrow X direction), and the first and second top locking portions 55. A top side locking receiving portion 56 that is provided on the top side inner walls 42 and 43 and locks the top side locking piece 55. The top side locking receiving portion 56 is a part of the edge n on the front side of each of the first and second top side inner walls 42 and 43, and the top side protruding pieces of the first and second top side inner walls 42 and 43. 46 is provided above 46. In such a top side locking part 54, the top side locking piece 55 rides on the top side locking receiving part 56 and climbs to the front side of the top side locking receiving part 56, and the top side locking piece 55. The top side locking receiving portion 56 is locked, and the locked state between the first and second top side inner walls 42 and 43 and the third top side inner wall 52 is maintained.

  The connecting wall 4 is provided between the bottom wall 8 and the top wall 12 and is continuously formed between the walls 8 and 12. Further, the connecting wall 4 is formed such that the left and right dimensions thereof are substantially equal to the dimension between the left and right edges a of the bottom wall 8 (the dimension between the first and second bottom-side outer walls 20 and 21). Thus, the vertical dimension is substantially the same as the vertical dimension of the first and second bottom outer walls 20, 21.

  The connecting wall 4 is formed in a mountain fold with the boundary between the connecting wall 4 and the bottom wall 8 as a fold s, and is folded in a mountain with a boundary between the connecting wall 4 and the top wall 12 as a fold t.

  The pair of first folding pieces 5 are provided between the left and right side walls 9, 10 and the connecting wall 4. The pair of first folding pieces 5 are continuously formed on the rear edge 5b of each of the first and second bottom-side outer walls 20, 21 and the left and right edges 5a of the connecting wall 4, respectively. Folded into a mountain fold with the boundary between the wall 4 and the first folded piece 5 as a fold 5a, and folded into a mountain fold with the boundary between the first and second bottom outer walls 20, 21 and the first folded piece 5 as a fold 5b. In addition, the first folding piece 5 is formed by being folded into a valley fold with the center (midway) as a fold 5c so as to be equally divided into two by a diagonal line. Of the pair of first divided portions 50 formed by folding the first folding piece 5 into two equal parts, one provided on the connection wall 4 side is bonded and fixed to the back surface of the connection wall 4. . The boundary between the pair of first divided portions 50 is located on the side where the lid 3 is positioned at the “covering position” and from the left and right corners on the rear side of the bottom wall 8 toward each other in the left-right direction (arrow X direction). As it goes, it extends from the rear edge s of the bottom wall 8 so as to be spaced upward.

  The pair of second folding pieces 6 are provided between the left and right side walls 9, 10 and the front side wall 11. The pair of second folding pieces 6 are continuously formed on the front edge 6 b of each of the first and second bottom outer walls 20, 21 and the left and right edges 6 a of the third bottom outer wall 31, respectively. At the same time, the boundary between the third bottom outer wall 31 and the second folded piece 6 is folded into a mountain fold with the crease 6a, and the boundary between each of the first and second bottom outer walls 20, 21 and the second folded piece 6 is folded. It is formed by being folded into a mountain fold as 6b and folded into a valley fold with the center (intermediate) as a fold 6c so that the second folded piece 6 is equally divided by a diagonal line. Of the pair of second divided portions 60 formed by folding the second folded piece 6 into two equal parts, one provided on the third bottom-side outer wall 31 side is the back surface of the third bottom-side outer wall 31. It is fixed to the adhesive. The boundary between the pair of second divided portions 60 is from the left and right corners on the front side of the bottom wall 8 to the side closer to each other in the left-right direction (arrow X direction) with the lid 3 positioned at the “cover position”. As it goes, it is provided so as to be separated upward from the edge f on the front side of the bottom wall 8.

  Further, each second folding piece 6 is provided between the third bottom-side outer wall 31 and the third bottom-side inner wall 32 of the front side wall 11, and the pair of second divided portions 60 are folded around a diagonal line. An opening preventing piece 61 is provided to prevent the opening from being caused. The dimension of the opening prevention piece 61 in the front-rear direction (arrow Y direction) is formed to be slightly smaller than the dimension of the third upper wall 33 in the front-rear direction. The opening preventing piece 61 is continuously formed at the upper edge of the other second divided portion 60 of the second folding piece 6 and is folded in a mountain fold with the boundary with the other second divided portion 60 as a crease 6d. And it is provided to extend rearward.

  Such an opening preventing piece 61 is continuously formed on the upper edge portion of the other second split portion 60 of the second folding piece 6 and is provided to extend rearward, so that the third upper wall The third bottom side inner wall 32 is pushed rearwardly in a state of facing the third upper wall 33 below the 33. And in the assembly state of the packaging paper box 1, the 3rd bottom side outer wall 31 will be pulled back by the 3rd bottom side inner wall 32 being pushed back by the opening prevention piece 61. FIG. The pair of second divided portions 60 is prevented from opening around the diagonal line against the restoring force generated so that the pair of second divided portions 60 are folded back. Thus, the opening prevention piece 61 also contributes to making the box shape beautiful while maintaining a predetermined shape stably.

  The pair of third folding pieces 7 are provided between the left and right cover walls 13, 14 and the front cover wall 15. The pair of third folding pieces 7 are continuously formed on the front edge 7b of each of the first and second top-side outer walls 40 and 41 and the left and right edges 7a of the third top-side outer wall 51, respectively. At the same time, the boundary between the third top side outer wall 51 and the third folding piece 7 is folded in a mountain fold with the crease 7a as the fold line, and the boundary between each of the first and second top side outer walls 40, 41 and the third folding piece 7 is folded. It is formed by being folded into a mountain fold as 7b and folded into a valley fold with the center (midway) as a crease 7c so that the third folded piece 7 is equally divided by a diagonal line. Of the pair of third divided portions 70 formed by folding the third folding piece 7 into two equal parts, one provided on the third top side outer wall 51 side is the back side of the third top side outer wall 51. It is fixed to the adhesive. The boundary between the pair of third divided portions 70 is on the side where the lid 3 is positioned at the “covering position” and from the left and right corners on the front side of the top wall 12 toward each other in the left-right direction (arrow X direction). As it goes, it extends so as to be spaced downward from the front edge p of the top wall 12.

  In the wrapping paper box 1 configured in this way, the lid body 3 is pivotably displaced with respect to the box body 2 between the “covering position” covering the opening of the box body 2 and the “exposing position” exposing the opening. To do. The three side walls 9, 10, and 11 are the first, second, and third bottom-side outer walls 20, 21, and 31 and the first, second, and third bottom-side inner walls 22, 23, and 32 are the bottom walls, respectively. The first, second, and third upper walls 24, 25, and 33 are formed in a frame shape provided facing the bottom wall 8. As described above, since the three side walls 9, 10, and 11 are provided in a frame shape, the packaging paper box 1 is formed with a high-class feeling and excellent shock-absorbing property to prevent external impact. Can do. The three side walls 9, 10, 11 have a first, second, third bottom outer wall 20, 21, 31 and a first, second, third bottom inner wall 22, 23, 32. Since it is provided on the wall, the vertical strength can be improved. The left and right and front side cover walls 13, 14, and 15 cover the left and right and front side walls 9, 10, and 11, respectively, to prevent the contents stored in the box body 2 from jumping out. be able to.

(Development of packaging paper box)
Subsequently, the unfolded body 1A of the packaging paper box of the present embodiment will be described with reference to FIG. 2, FIG. 3, and FIG.

  In FIG. 2, reference numeral 1 </ b> A is a developed body of the packaging paper box according to the embodiment of the present invention. As described above, the unfolding body 1A of the wrapping paper box is formed in a plate shape having a small thickness as a whole by folding a sheet 101 formed by punching a sheet of paper with a predetermined position as a crease. ing. The sheet 101 is provided such that the front surface thereof constitutes the outer surface of the packaging paper box 1 and the rear surface thereof constitutes the inner surface of the packaging paper box 1.

  The unfolding body 1A of the packaging paper box includes a bottom wall equivalent portion 8A corresponding to the bottom wall 8, a top wall equivalent portion 12A corresponding to the top wall 12, a connection wall equivalent portion 4A corresponding to the connection wall 4, and a third bottom side outer wall. A third bottom-side outer wall corresponding portion 31A corresponding to 31 and a third top-side outer wall corresponding portion 51A corresponding to the third top-side outer wall 51 are provided on the same plane.

  The left and right side wall corresponding portions 9A and 10A corresponding to the left and right side walls 9 and 10 are first and second bottom side outer wall corresponding portions (bottom side outer wall corresponding portions) corresponding to the first and second bottom outer walls 20 and 21, respectively. 20A, 21A, first and second bottom side inner walls 22 and 23 corresponding to first and second bottom side inner walls 22 and 23 (bottom side inner wall equivalent parts) 22A and 23A, and first and second top walls 24, 25, first and second upper wall equivalent portions (upper wall equivalent portions) 24A, 25A, and first and second bottom wall attachment portions 26A corresponding to the first and second bottom wall attachment portions 26, 27 27A.

  The left and right side wall equivalent portions 9A and 10A have first and second bottom side outer wall equivalent portions 20A and 21A with the boundary between the first and second bottom side outer wall equivalent portions 20A and 21A and the bottom wall equivalent portion 8A as a crease a. Is folded so as to face the back surface of the bottom wall equivalent portion 8A, and the boundary between the first and second bottom side inner wall equivalent portions 22A and 23A and the first and second upper wall equivalent portions 24A and 25A is defined as a crease c, The first and second bottom outer wall equivalent portions 20A, 21A and the first and second upper wall equivalent portions 24A, 25A are folded so that the back surfaces thereof face each other, and the first and second bottom inner wall equivalent portions 22A, 23A and the first and second bottom wall sticking equivalent portions 26A and 27A are taken as creases d, and the first and second bottom side inner wall equivalent portions 22A and 23A and the first and second bottom wall sticking equivalent portions 26A and 27A In this state, the first and second bottom wall sticking equivalent portions 26A are folded so that the surfaces thereof face each other. The back surface of 27A is located in the left-right direction (arrow X direction) of the first and second upper wall equivalent portions 24A and 25A from the boundary between the bottom wall equivalent portion 8A and the first and second bottom-side outer wall equivalent portions 20A and 21A. It is bonded and fixed to the back surface of the bottom wall equivalent portion 8A on the inner side by the dimension. Further, in the bottom side protruding piece equivalent portion 28A corresponding to the bottom side protruding piece 28, the surface of the bottom side protruding piece equivalent portion 28A corresponding to the bottom side protruding piece 28 is the same as the bottom wall equivalent portion 8A. It is provided to face these back surfaces while straddling the boundary f with the third bottom side outer wall corresponding portion 31A corresponding to the third bottom side outer wall 31. Further, the extended piece equivalent portion 29A corresponding to the extended piece 29 has the back surface corresponding to the first and second bottom side inner wall equivalent portions 22A and 23A and the first and second bottom sides on the back surface of the bottom wall equivalent portion 8A. It is bonded and fixed between the outer wall equivalent portions 20A and 21A. Furthermore, a crease b (hereinafter sometimes referred to as a first fold line b) is formed at the boundary between the first and second upper wall equivalent parts 24A and 25A and the first and second bottom outer wall equivalent parts 20A and 21A. Is provided.

  Here, notches 126a and 127a are formed at the front end portions of the first and second bottom wall sticking equivalent portions 26A and 27A, respectively. Thus, notches 126a and 127a are formed in the first and second bottom wall sticking equivalent portions 26A and 27A, and both left and right end portions (arrow X direction) are also provided in the bottom wall overlap corresponding portion 34A described later. The notch 134a is formed in the first and second bottom wall sticking equivalent portions 26A and 27A in the assembled state of the packaging paper box 1 and the unfolded body 1A of the packaging paper box. The corresponding portion 34A does not overlap vertically. Each of the first and second ceiling wall sticking equivalent portions 44A and 45A has notches 144a and 145a formed at the front end portions thereof. Thus, the notches 144a and 145a are formed in the first and second ceiling wall sticking equivalent parts 44A and 45A, respectively, and both left and right ends (arrow X direction) of the ceiling wall equivalent part 53A described later. Since the notch 153a is formed in the packaging paper box 1 in the assembled state and the packaging paper box unfolded body 1A, each of the first and second ceiling wall sticking equivalent parts 44A and 45A and the ceiling wall overlap The corresponding portion 53A does not overlap vertically.

  The front side wall equivalent portion 11 </ b> A corresponding to the front side wall 11 includes a third bottom side outer wall equivalent portion 31 </ b> A corresponding to the third bottom side outer wall 31, and a third bottom side inner wall equivalent portion 32 </ b> A corresponding to the third bottom side inner wall 32. , A third upper wall equivalent portion 33A corresponding to the third upper wall 33 and a bottom wall overlap corresponding portion 34A corresponding to the bottom wall overlap portion 34 are provided.

  The front side wall equivalent portion 11A is a back surface of the third bottom side outer wall equivalent portion 31A and the third upper wall equivalent portion 33A with the boundary between the third bottom side outer wall equivalent portion 31A and the third upper wall equivalent portion 33A as a crease g. They are folded so that they face each other. And the third bottom side outer wall equivalent part 31A, the third upper wall equivalent part 33A, and the bottom wall overlap equivalent part 34A are between the bottom wall equivalent part 8A and the left and right side wall equivalent parts 9A, 10A, and The second folded piece equivalent portion 6A is provided so as to be sandwiched therebetween.

  In addition, a second fold line h is formed at the boundary between the third upper wall equivalent portion 33 </ b> A and the third bottom side inner wall equivalent portion 32 </ b> A by being folded into a mountain fold with the boundary as a fold line h. . That is, the second fold line h is formed by being folded approximately 90 degrees once so that the back surfaces of the third upper wall equivalent portion 33A and the third bottom side inner wall equivalent portion 32A face each other, and then folded back. ing. Here, each crease other than the second crease h and the first crease b are creases formed by pressing the sheet 101, whereas the second crease h is once folded. Since the folding fold is formed by folding back, the operation of folding the fold h can be simplified and the assembly work of the box body 2 can be facilitated by forming such a second fold line h. can do.

  The left and right cover wall equivalent portions 13A and 14A corresponding to the left and right cover walls 13 and 14 include first and second ceiling side outer wall equivalent portions 40A and 41A corresponding to the first and second ceiling side outer walls 40 and 41, respectively. First and second top wall corresponding portions 42A and 43A corresponding to the first and second top wall inner walls 42 and 43, and first and second ceilings corresponding to the first and second ceiling wall sticking portions 44 and 45, respectively. Wall sticking equivalent parts 44A and 45A.

  The left and right covering wall equivalent portions 13A and 14A are arranged such that the boundary between the first and second top side outer wall equivalent portions 40A and 41A and the top wall equivalent portion 12A is a crease j, and the first and second top side outer wall equivalent portions 40A, 41A is folded so as to face the back surface of the top wall equivalent part 12A, and the boundary between the first and second top side outer wall equivalent parts 40A and 41A and the first and second top side inner wall equivalent parts 42A and 43A is creased. As described above, the first and second top side outer wall equivalent portions 40A and 41A and the first and second top side inner wall equivalent portions 42A and 43A are folded so that the back surfaces thereof face each other, and the first and second top side inner wall equivalents The first and second top side inner wall equivalent parts 42A and 43A and the first and second ceiling wall sticking equivalent parts are defined with the crease m as the boundary between the parts 42A and 43A and the first and second ceiling wall sticking equivalent parts 44A and 45A. It is folded so that the surfaces of 44A and 45A face each other, and in this state, the first and second ceiling walls The back surfaces of the attached equivalent portions 44A and 45A are adhered and fixed to the back surface of the top wall equivalent portion 12A slightly inside the boundary between the top wall equivalent portion 12A and the first and second top side outer wall equivalent portions 40A and 41A. Yes. Further, the top side protruding piece equivalent portion 46 </ b> A corresponding to the top side protruding piece 46 has a surface p between the top wall equivalent portion 12 </ b> A and the third ceiling side outer wall equivalent portion 51 </ b> A corresponding to the third ceiling side outer wall 51. Are provided so as to face these back surfaces.

  The front covering wall equivalent portion 15 </ b> A corresponding to the front covering wall 15 includes a third top side outer wall corresponding portion 51 </ b> A corresponding to the third top side outer wall 51 and a third top side inner wall corresponding portion corresponding to the third top side inner wall 52. 52A and a ceiling wall overlapping portion 53A corresponding to the ceiling wall overlapping portion 53.

  The front covering wall equivalent portion 15A has a boundary between the third top side outer wall equivalent portion 51A and the third top side inner wall equivalent portion 52A as a crease q, and the third top side outer wall equivalent portion 51A and the third top side inner wall equivalent portion 52A. It is folded so that the backs of the two face each other. The third top side inner wall equivalent part 52A and the top wall overlap equivalent part 53A are between the top wall equivalent part 12A and the left and right side cover wall equivalent parts 13A, 14A, and the third folded piece equivalent part 7A. It is provided so as to overlap.

  The pair of first folding piece equivalent portions 5A corresponding to the pair of first folding pieces 5 has the boundary with the connection wall equivalent portion 4A as a fold 5a, and the first folding piece equivalent portion 5A is on the back surface of the connection wall equivalent portion 4A. It is folded to face each other. In this state, of the pair of first divided equivalent portions 50A corresponding to the pair of first divided portions 50, one of the first divided equivalent portions 50A provided on the connection wall equivalent portion 4A side has the back surface on the back surface of the connection wall equivalent portion 4A. Bonded and fixed. A pair of 1st division | segmentation parts 50 are corresponded to the "1st triangular piece" and the "2nd triangular piece" in a claim.

  The pair of second folding piece equivalent portions 6A corresponding to the pair of second folding pieces 6 has a boundary with the third bottom side outer wall equivalent portion 31A as a fold 6a, and the second folding piece equivalent portion 6A is the third bottom side outer wall. It is folded so as to face the back surface of the corresponding portion 31A. In this state, one of the pair of second divided equivalent portions 60A corresponding to the pair of second divided portions 60 provided on the third bottom side outer wall equivalent portion 31A side has the back surface of the third bottom side outer wall. It is adhered and fixed to the back surface of the corresponding portion 31A. Furthermore, the pair of second folding piece equivalent portions 6A is provided with an opening prevention piece equivalent portion 61A corresponding to the opening prevention piece 61.

  The pair of third folding piece equivalent portions 7A corresponding to the pair of third folding pieces 7 has a boundary with the third top side outer wall equivalent portion 51A as the fold line 7a, and the third folding piece equivalent portion 7A is the third top side outer wall. It is folded so as to face the back surface of the corresponding portion 51A. In this state, of the pair of third divided equivalent portions 70A corresponding to the pair of third divided portions 70, one provided on the third top side outer wall equivalent portion 51A side has the back surface of the third top side outer wall. It is adhered and fixed to the back surface of the corresponding portion 51A.

  1 A of expansion | deployment bodies of such a wrapping paper box are formed in plate shape with little thickness as a whole. Therefore, since it is made more compact than the wrapping paper box 1 and is provided so as to have a smaller area in plan view, it is possible to eliminate waste of space during transportation and storage. In addition, since the unfolding body 1A of the packaging paper box is formed from one sheet 101, for example, when forming the low-wrapping packaging paper box 1 in an assembled state, the sheet 101 is used in a substantially rectangular shape. The paper (material) can be used with good productivity.

  Next, an assembling procedure of the packaging paper box 1 configured using the packaging paper box expansion body 1A will be described with reference to FIG.

  First, the left and right side wall equivalent portions 9A and 10A of the unfolding body 1A of the packaging paper box are folded up to a substantially right angle on the side away from each other in the left and right direction (arrow X direction) with respect to the bottom wall equivalent portion 8A. Then, the connecting wall equivalent part 4A is folded up via the first folded piece equivalent part 5A, and the front side wall equivalent part 11A is folded up via the second folded piece equivalent part 6A. The first fold line b provided at the boundary between the first and second upper wall equivalent parts 24A and 25A and the first and second bottom outer wall equivalent parts 20A and 21A is folded into a mountain fold.

  Then, the boundary between the bottom wall equivalent portion 8A and the third bottom side outer wall equivalent portion 31A is folded into a mountain fold with the crease f, and the boundary between the third bottom side outer wall equivalent portion 31A and the third upper wall equivalent portion 33A is a crease g. Folded into a mountain fold, folded into a mountain fold with the boundary between the third upper wall equivalent portion 33A and the third bottom side inner wall equivalent portion 32A as a crease h, and the third bottom side inner wall equivalent portion 32A and the bottom wall overlap corresponding portion 34A The bottom wall overlap corresponding portion 34A is overlapped on the back surface of the bottom wall equivalent portion 8A. At the same time, the bottom-side locking piece 36 is locked to the bottom-side locking receiving portion 37, and the front-side bottom protruding pieces 28 are provided to overlap the front side of the third bottom-side inner wall 32. State. At this time, the fold line h was provided with a second fold line h formed by folding the boundary h between the third bottom inner plate 132 and the third upper plate 133 into a mountain fold, and then folding it back. The operation of folding as the crease h can be simplified, and the assembly operation of the box body 2 can be facilitated.

  Next, the left and right cover wall equivalent portions 13A and 14A are folded up to a substantially right angle with respect to the top wall equivalent portion 12A in the left and right direction (arrow X direction). Then, the front side cover wall equivalent part 15A is folded up via the third folded piece equivalent part 7A. Then, the boundary between the top wall equivalent part 12A and the third top side outer wall equivalent part 51A is folded into a mountain fold with a crease p, and the boundary between the third top side inner wall equivalent part 52A and the top wall overlap corresponding part 53A is taken as a crease r. Folded into a valley fold, the top wall equivalent part 53A is placed on the back surface of the top wall equivalent part 12A. At the same time, the top-side locking piece 55 is locked to the top-side locking receiving portion 56, and the pair of top-side protruding pieces 46 are provided so as to overlap the front side of the third top-side inner wall 52. To do.

  At this time, since the lid 3 is provided in the “exposed position”, the boundary between the bottom wall equivalent portion 8A and the connecting wall equivalent portion 4A is folded into a mountain fold with the crease s as the ceiling wall equivalent portion 12A. The lid 3 is turned forward with respect to the box body 2 by folding it into a mountain fold with the boundary with the connecting wall equivalent portion 4A as a crease t. In this way, the lid 3 is in the “covered position”. In this way, the packaging paper box 1 is assembled.

  Such a wrapping paper box unfolding body 1A has a part of the pair of first folding piece equivalent parts 5A (one of the pair of first divided equivalent parts 50A provided on the connecting wall equivalent part 4A side). A part of the pair of second folded piece equivalent parts 6A (one of the pair of second split equivalent parts 60A provided on the third bottom side outer wall equivalent part 31A side) is affixed to the connecting wall equivalent part 4A. Affixed to the third bottom-side outer wall equivalent part 31A and part of the pair of third folding piece equivalent parts 7A (one of the pair of third divided equivalent parts 70A provided on the third top-side outer wall equivalent part 51A side ) Is affixed to the third top side outer wall equivalent part 51A, so that the left and right side wall equivalent parts 9A and 10A folded inwardly in the left and right direction (arrow X direction) with respect to the bottom wall equivalent part 8A. By folding up away from each other, the connecting wall equivalent part 4A is folded via the first folding piece equivalent part 5A. At the same time, the front side wall equivalent part 11A is folded up via the second folded piece equivalent part 6A. At the same time, the upper wall equivalent parts 24A and 25A and the first and second bottom side outer wall equivalent parts 20A, The fold line b provided at the boundary with 21A (corresponding to the bottom outer wall) is folded as a crease, and is erected on the connecting wall 4 and the edges a and f on the left and right and front sides of the bottom wall 8. Two side walls 9, 10, 11 are formed. At substantially the same time, the left and right and front side walls 9, 10, 11 can be formed into a double wall. In addition, since a part of the pair of third folding piece equivalent portions 7A is attached to the front covering wall equivalent portion 15A, the left and right side covering wall equivalent portions 13A and 14A are left and right with respect to the top wall equivalent portion 12A. 15A of the front side cover wall is folded up via the third folding piece equivalent part 7A by folding up in the direction (arrow X direction) away from each other, and the left and right and front side edges of the top wall 12 Three covering walls 13, 14, and 15 standing on j and p are formed. In this way, the connecting wall equivalent portion 4A is assisted by the first folding piece equivalent portion 5A and folded through the first folding piece equivalent portion 5A, and the front side wall equivalent portion 11A (front side side equivalent portion). ) Is assisted by the second folded piece equivalent portion 6A and folded through the second folded piece equivalent portion 6A, and the step of folding the connecting wall equivalent portion 4A or the front side wall equivalent portion 11A (front side) The side wall 9, 10, 11 on the left and right and front sides can be easily formed in a double wall. Improvements can be made.

  Further, the lid 3 folds the left and right cover wall equivalent portions 13A and 14A folded inward to the side away from each other in the left and right direction (arrow X direction) with respect to the top wall equivalent portion 12A. Since the front cover wall equivalent portion 15A is assembled by folding up the front wall equivalent portion 12A in the forward direction (arrow Y direction), the cover paper box 1 is covered in the assembled state. The walls 13 and 14 generate a restoring force that acts in a direction approaching the side walls 9 and 10 of the box body 2. That is, the covering walls 13 and 14 are provided in a state in which a force approaching the side walls 9 and 10 is applied. Therefore, the packaging paper box 1 in an assembled state is kept in a box shape while stably maintaining a predetermined shape. Can be beautiful.

(Manufacturing method of the expanded body of the packaging paper box)
Then, the manufacturing method of the expansion body 1A of a packaging paper box is demonstrated with reference to FIG. 4, FIG.

  The development body 1A of the packaging paper box is composed of a sheet 101 formed by punching one sheet of paper. The sheet 101 is arranged such that its front side is provided on the front side in FIG. 4 and its back side is provided on the back side. As shown in FIG. 4, the sheet 101 includes a box body group 102 that is the box body 2, a lid body group 103 that is the lid body 3, a connecting plate 104 that is a connecting wall equivalent portion 4 </ b> A, and a first folding piece equivalent. The first folding plate 105 serving as the portion 5A, the second folding plate 106 serving as the second folding piece equivalent portion 6A, and the third folding plate 107 serving as the third folding piece equivalent portion 7A are integrally provided. The first folding plate 105 includes a pair of first divided plates 150. The second folding plate 106 includes a pair of second divided plates 160 and an opening prevention plate 161. The third folding plate 107 includes a pair of third divided plates 170. The box body group 102 includes a bottom plate 108 serving as a bottom wall equivalent portion 8A, and first, second, and third bottom outer plates 120 serving as first, second, and third bottom side outer wall equivalent portions 20A, 21A, and 31A. , 121, 131, and first, second, and third bottom inner plates 122, 123, and 132 that constitute first, second, and third bottom side inner wall equivalent portions 22A, 23A, and 32A, and first, second, The first, second, and third upper plates 124, 125, and 133 that are the third upper wall equivalent portions 24A, 25A, and 33A, and the first and second that are the first and second bottom wall sticking equivalent portions 26A and 27, respectively. 2 bottom plate sticking plates 126 and 127, and a bottom plate overlapping plate 134 serving as a bottom wall overlapping corresponding portion 34A. The first and second bottom inner plates 122 and 123 are respectively provided with a bottom protruding plate 128 serving as a bottom protruding piece equivalent portion 28A, a portion 137 serving as a bottom side locking receiving portion 37, and an extending piece. And a cut 129 for forming the corresponding portion 29A. The third bottom inner plate 132 is provided with a bottom locking plate 136 serving as a bottom locking piece equivalent portion 36A.

  The lid body group 103 that is the lid body 3 includes a top plate 112 that is the top wall equivalent portion 12A, and first, second, and second top side equivalent to the first, second, and third top side outer wall equivalent portions 40A, 41A, and 51A. Three top-side outer plates 140, 141, 151, and first, second, and third top-side inner plates 142, 143, 152 that form first, second, and third top-side inner wall equivalent portions 42A, 43A, and 52A; , First and second top plate pasting plates 144 and 145 that are the first and second top wall pasting corresponding portions 44A and 45A, and a top plate stacking plate 153 that is the top wall stacking corresponding portion 53A. Each of the first and second top side inner plates 142 and 143 is provided with a top side protruding plate 146 that becomes the top side protruding piece equivalent portion 46A and a portion 156 that becomes the top side locking receiving portion 56. ing. The third top side inner plate 152 is provided with a top side locking plate 155 serving as a top side locking piece equivalent portion 55A.

  Here, when the sheet 101 is folded, a pair of rollers provided in a pressing machine (not shown) is used to move the sheet 101 from one side (box body group 102 side) to the other side (lid body group 103 side) in the arrow Y direction. The sheet 101 is formed by folding each fold so that the sheet 101 is folded inward from both sides in the arrow X direction.

<Adhesive application process>
As shown in FIG. 5A, an adhesive is applied to the back surface of one second split plate 160 on the third bottom side outer plate 131 side of the second folding plate 106, and the first folding plate 105 Adhesive is applied to the back surface of one first divided plate 150 on the connection plate 104 side, and then the back surface of one third divided plate 170 on the third top side outer plate 151 side of the third folding plate 107. Apply adhesive. Subsequently, an adhesive is applied to each of the back surfaces of the first and second bottom plate affixing plates 126 and 127. Thereafter, an adhesive is applied to each of the back surfaces of the first and second top plate attaching plates 144 and 145. Here, the adhesive does not need to be applied to the entire area of these positions, and may be applied to at least a part thereof.

<Adhesion fixing process>
In this state, as shown in FIG. 5B, before the adhesive is cured, that is, before being fixed by the adhesive, the first and second bottom plate affixing plates 126 and 127 and the first and second bottom sides. The boundary between the inner plates 122 and 123 is a crease d, and the surfaces of the first and second bottom plate affixing plates 126 and 127 and the first and second bottom side inner plates 122 and 123 are opposed to each other (valley fold). The boundary between the first and second bottom inner plates 122 and 123 and the first and second upper plates 124 and 125 is a crease c, and the first and second bottom inner plates 122 and 123 and the first and second Each of the upper plates 124 and 125 is pressed into a mountain fold so that the back surfaces thereof face each other. The boundary between the second folding plate 106 and the third bottom side outer plate 131 is the fold 6a, and the second folding plate 106 is opposed to the back surface of the third bottom side outer plate 131 (mountain fold). The boundary between the second bottom side outer plates 120 and 121 and the bottom plate 108 is a fold line a, and the first and second bottom side outer plates 120 and 121 are opposed to the back surface of the bottom plate 108 (mountain fold). The boundary between the folding plate 105 and the connecting plate 104 is the fold 5a, and the first folding plate 105 is pressed into a mountain fold so as to face the back surface of the connecting plate 104. Subsequently, the boundary between the first and second top plate attaching plates 144 and 145 and the first and second top side inner plates 142 and 143 is defined as a crease m, and the first and second top plate attaching plates 144 and 145 and the first The first and second top side inner plates 142 and 143 and the first and second top side outer plates 140 and 141 so that the surfaces of the first and second top side inner plates 142 and 143 face each other (valley fold). The first and second top side inner plates 142 and 143 and the first and second top side outer plates 140 and 141 are pressed in a mountain fold so as to face each other. Then, the boundary between the first and second top side outer plates 140 and 141 and the top plate 112 is set as a crease j, and the first and second top side outer plates 140 and 141 are opposed to the back surface of the top plate 112 ( Mountain fold), the boundary between the third folding plate 107 and the third top side outer plate 151 is a fold 7a, and the third folding plate 107 is opposed to the back surface of the third top side outer plate 151 (mountain folding), Press each one. At this time, the first and second top plate attaching plates 144 and 145 have a boundary m between the first and second top plate attaching plates 144 and 145 and the first and second top side inner plates 142 and 143, respectively. 112 and the first and second top side outer plates 140 and 141 are moved slightly inward (sides approaching each other in the arrow X direction) from the boundary j, and in this state, they are bonded and fixed to the back surface of the top plate 112. The At substantially the same time, the third folding plate 107 is bonded and fixed to the back surface of the third top side outer plate 151, and the second folding plate 106 is bonded and fixed to the back surface of the third bottom side outer plate 131. The bottom plate attaching plates 126 and 127 are bonded and fixed to the back surface of the bottom plate 108, and the first folding plate 105 is bonded and fixed to the back surface of the connecting plate 104.

<Folding process>
The boundary between the third bottom inner plate 132 and the third upper plate 133 is set as a crease h, and pressing is performed in a mountain fold so that the back surfaces of the third bottom inner plate 132 and the third upper plate 133 face each other. The third bottom inner plate 132 and the third upper plate 133 are folded back to the unfolded state before being pressed into the mountain fold. Thus, the second crease h that is a crease is formed. Subsequently, the boundary between the third bottom side outer plate 131 and the third upper plate 133 is set as a fold line g so that the second folding plate 106 is sandwiched between the third bottom side outer plate 131 and the third upper plate 133. Then, the third bottom side outer plate 131 and the third upper plate 133 are pressed in a mountain fold so that the back surfaces thereof face each other.

  Further, the boundary between the third top side outer plate 151 and the third top side inner plate 152 is taken as a crease q, and the third folding plate 107 is interposed between the third top side outer plate 151 and the third top side inner plate 152. A mountain fold press is performed so that the back surfaces of the third top-side outer plate 151 and the third top-side inner plate 152 face each other so as to be sandwiched. In this way, as shown in FIG. 5C, the development body 1A of the packaging paper box is manufactured.

  Thus, the development body 1A of the packaging paper box is formed by pressing each crease using a machine. Therefore, a larger force is applied while improving productivity than when various folds are formed manually without using a machine. In particular, in the assembled state, the restoring force acting in the direction in which the left and right cover walls 13, 14 of the lid 3 approach the left and right side walls 9, 10 of the box body 2 can be increased. Therefore, it is possible to further improve the productivity and further enhance the box shape of the packaging paper box 1 in the assembled state while stably maintaining the predetermined shape.

  In the embodiment described above, when the sheet 101 is folded, the sheet 101 is moved from one side (box body group 102 side) to the other side (lid body group 103 side) in the arrow Y direction by a press machine (not shown). The folds of the sheet 101 are folded to produce the wrapping paper box unfolded body 1A, but the present invention is not limited to this. While the sheet 101 is moved from the other side (the lid group 103 side) in the arrow Y direction to one side (the box body group 102 side) by a press machine (not shown), each fold of the sheet 101 is folded and the unfolded body 1A of the packaging paper box May be manufactured.

  In the embodiment described above, when the sheet 101 is folded, a pair of rollers provided in a press machine (not shown) is used to move the sheet 101 from one side (box body group 102 side) in the arrow Y direction to the other (lid Each fold of the sheet 101 is folded so as to be folded inward from both sides in the arrow X direction of the sheet 101 while moving to the body group 103 side), but the present invention is not limited to this, and various Using the above method, the folds of the sheet 101 may be folded to manufacture the unfolded body 1A of the packaging paper box.

  Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to the configuration of the above embodiment.

  In the packaging paper box 1 described above, the first and second ceiling wall affixing portions 44 and 45 may be omitted. That is, the first and second ceiling wall sticking equivalent portions 44A and 45A in the unfolding body 1A of the packaging paper box may be omitted. In that case, the back surfaces of the first and second top side outer wall equivalent portions 40A and 41A and the first and second top side inner wall equivalent portions 42A and 43A may be bonded and fixed to each other.

  Moreover, in the packaging paper box 1 mentioned above, a pair of 1st folding piece 5 is a connection wall among a pair of 1st division | segmentation parts 50 formed by folding each 1st folding piece 5 into 2 equal parts. One of the four divided portions 60 formed by being bonded and fixed to the back surface of the connecting wall 4 and being bent so as to divide the second folding piece 6 into two equal parts. One side provided on the side outer wall 31 side is bonded and fixed to the back surface of the third bottom side outer wall 31, and a pair of third divided portions 70 formed by folding the third folding piece 7 into two equal parts. Of these, one provided on the third top side outer wall 51 side was adhesively fixed to the back surface of the third top side outer wall 51, but the present invention is not limited to these and is not adhesively fixed. Also good. That is, a part of the pair of first folded piece equivalent parts 5A is on the back surface of the connecting wall equivalent part 4A, and a part of the pair of second folded piece equivalent parts 6A is on the back surface of the third bottom outer wall equivalent part 31A. Part of the pair of third folding piece equivalent portions 7A may not be bonded and fixed to the back surface of the third top side outer wall equivalent portion 51A. Also in this case, the lid 3 folds the left and right side cover wall equivalent portions 13A and 14A folded inward to the side away from each other in the left and right direction (arrow X direction) with respect to the top wall equivalent portion 12A. Since the front cover wall equivalent portion 15A folded inward is assembled by folding up the front wall equivalent portion 12A forward (arrow Y direction), the packaging paper box 1 is assembled. Thus, the covering walls 13 and 14 generate a restoring force that acts in a direction approaching the side walls 9 and 10 of the box body 2. Accordingly, the covering walls 13 and 14 are provided in a state in which a force approaching the side walls 9 and 10 is applied. Therefore, the packaging paper box 1 in an assembled state is maintained in a predetermined shape while maintaining a predetermined shape. Can be beautiful.

  In the wrapping paper box 1 described above, the top wall overlapping portion 53 has a length in the front-rear direction (arrow Y direction) so as not to overlap the first and second top wall sticking portions 44 and 45. Although formed, the present invention is not limited to this. FIG. 6 is a perspective view showing a modification of the packaging paper box shown in FIG. 1, and shows a state where the lid is opened. As shown in FIG. 6, instead of the top wall overlapping portion 53, a ceiling wall covering portion 57 is formed so as to be extended to cover the entire back surface of the top wall 12. May be. In FIG. 6, members having the same structure or function as those of the above-described embodiment are denoted by the same reference numerals and description thereof is omitted. Thus, instead of the top wall overlapping portion 53, the top wall covering portion 57 is provided, and the first and second top wall attaching portions are arranged so that the back surface of the top wall covering portion 57 and the back surface of the top wall 11 face each other. By overlapping through 44 and 45, the top wall 11 will be reinforced and the intensity | strength can be improved. Furthermore, since the back surface of the top wall 11 is not exposed, the box shape can be made beautiful with the lid open.

  In the embodiment described above, the wrapping paper box 1 may include a support plate 80 as shown in FIG. FIG. 7A is a perspective view showing a state in which a support plate assembled to the packaging paper box shown in FIG. 1 is assembled to the packaging paper box, and FIG. 7B is a support plate shown in FIG. It is a perspective view which shows the state assembled | attached to the packaging paper box. 7A and 7B, members having the same structure or function as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG. 7A, the support plate 80 is formed by punching and folding a sheet of paper, and is provided between the left and right side walls 9, 10. Support. The support plate 80 is continuous with a partition plate (standing plate) 81 provided facing the inner surface (back surface) of the connection wall 4 and a lower edge of the partition plate 81 at the boundary position between the bottom wall 8 and the connection wall 4. A bottom wall overlapping portion 82 that is formed and overlapped with the bottom wall 8, and a counter plate 83 that is continuously formed at the upper end edge of the partition plate 81 and faces the partition plate 81. The partition plate 81 is formed to extend from the lower end of the partition plate 81 in the left-right direction (arrow X direction) and away from each other, and is supported by the rear end portions of the first and second bottom inner walls 22 and 23. A plate locking piece 84 is provided. The opposing plate 83 is provided with a pair of insertion pieces 85 that are inserted between the pair of first divided portions 50 at both ends in the left-right direction. Each of the pair of insertion pieces 85 is formed by cutting out the lower end thereof in a triangular shape.

  As shown in FIG. 7A, the support plate 80 is formed by a punching member formed by punching a single sheet of paper. Here, the punching member is disposed so that the back surface is provided on the front side in FIG. 7A and the front surface is provided on the back side. The punching member inserts a pair of insertion pieces 85 between the pair of first divided portions 50, respectively, and sets the boundary between the partition plate 81 and the bottom wall overlapping portion 82 as a fold line v. It is folded in a valley fold so that the surfaces of the overlapping portion 82 are opposed to each other, and a peak is formed so that the back surfaces of the partition plate 81 and the opposed plate 83 are opposed to each other with the boundary between the partition plate 81 and the opposed plate 83 as a crease w. As shown in FIG. 7B, it is formed by being assembled to the box body 2. Here, the support plate 80 is assembled to the wrapping paper box while being folded from the punching member, but the support plate 80 is formed while being folded from the punching member. The support plate 80 may be assembled to the box body 2 by being inserted between the pair of first divided portions 50, with the bottom wall overlapping portion 82 overlapped with the bottom wall 8.

  Further, as shown in FIG. 8, the support plate 80 may be provided with a container support portion 86 that is further extended to the support plate 80 instead of the bottom wall overlapping portion 82. FIG. 8A is a view showing a modified example of the support plate shown in FIG. 7, and FIG. 8B is a view showing a developed state of the support plate shown in FIG. 8A and 8B, members having the same structure or function as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. The accommodation product support portion 86 is formed continuously with the lower end edge of the partition plate 81 and is formed in a plate shape that overlaps substantially the entire surface of the bottom wall 8, and a cut 86 a is formed at an arbitrary location, and a part of the overlap portion 86 is formed. It may be formed by cutting up 87.

  In the embodiment described above, the first folding piece 5 (first folding piece equivalent portion 5A) is the first and second bottom outer walls 20, 21 (first and second bottom outer wall equivalent portions 20A, 21A), A slit (not shown) is formed between the first folding piece equivalent portion 5A and the first and second top side outer wall equivalent portions 40A and 41A, which is formed continuously with the connection wall 4 (connection wall equivalent portion 4A). Has been. Thereby, even when the lid is opened in the assembled state of the packaging paper box 1, the connecting wall 4 is provided to be connected to the left and right side walls 9, 10 via the first folding piece 5. The shape of the box body 2 composed of the bottom wall 8, the three side walls 9, 10, 11 and the connecting wall 4 is maintained. However, the present invention is not limited to this. The first folding piece 5 (first folding piece equivalent part 5A) includes first and second top side outer walls 40 and 41 (first and second top side outer wall equivalent parts 40A and 41A) and a connection wall 4 (connection wall). The slits (not shown) may be formed between the first folded piece equivalent part 5A and the first and second bottom outer wall equivalent parts 20A, 21A. . In this case, the first folded piece equivalent portion 5A is folded inward with the boundary between the first folded piece equivalent portion 5A and the first and second top side outer wall equivalent portions 40A, 41A as a fold. Since the cutting lines at the rear ends of the first and second top side outer wall equivalent portions 40A and 41A are not exposed in the state in which the paper box 1 is assembled, the box shape can be made beautiful.

  Each embodiment mentioned above only showed the preferred form of the present invention, and the present invention is not limited to these embodiments. That is, those skilled in the art can implement various modifications according to conventionally known knowledge without departing from the scope of the present invention. Of course, such modifications are included in the scope of the present invention as long as they have the configuration of the packaging paper box of the present invention and the configuration of the packaging paper box.

DESCRIPTION OF SYMBOLS 1 Packaging paper box 1A Deployment body of packaging paper box 3 Lid 4 Connection wall 4A Connection wall equivalent part 5 1st folding piece 5A 1st folding piece equivalent part 6 2nd folding piece 6A 2nd folding piece equivalent part 7 3rd folding Piece 7A Third folding piece equivalent part 8 Bottom wall 8A Bottom wall equivalent part 9, 10 Left and right side walls 9A, 10A Left side wall equivalent part 11 Front side wall 11A Front side wall equivalent part 12 Top wall 12A Top wall equivalent part 13, 14 Left and right cover walls 13A, 14A Left right cover wall equivalent part 15 Front cover wall 15A Front cover wall equivalent part 20, 21 Bottom side outer walls (first and second bottom side outer walls)
20A, 21A Bottom side outer wall equivalent part (first and second bottom side outer wall equivalent part)
22, 23 Bottom inner wall (first and second bottom inner walls)
22A, 23A Bottom side inner wall equivalent part (first and second bottom side inner wall equivalent part)
24, 25 Upper wall (first and second upper walls)
24A, 25A Upper wall equivalent part (first and second upper wall equivalent part)
26, 27 Bottom wall pasting part (first and second bottom wall pasting part)
26A, 27A Bottom wall equivalent part (first, second bottom wall equivalent part)
40, 41 Top side outer wall (first and second top side outer walls)
40A, 41A Top side outer wall equivalent part (first and second top side outer wall equivalent part)
42, 43 Top wall (first and second ceiling walls)
42A, 43A Top side inner wall equivalent part (first and second top side inner wall equivalent part)
44, 45 Top wall pasting part (first and second top wall pasting part)
44A, 45A Top wall sticking part equivalent part (first and second top wall sticking part equivalent)
101 sheet b crease (first crease)

Claims (8)

A development body of a wrapping paper box formed by folding at least one sheet,
A box body having a rectangular bottom wall having four edges on the front, rear, left and right, and three side walls standing from the left and right edges and the front edge of the bottom wall, and having an opening on the upper side;
A lid having four edges on the front, rear, left and right, covering the opening, and three covering walls standing from each edge of the ceiling wall and covering the three side walls of the box body. When,
A connecting wall that is erected from the rear side edge of the bottom wall and is connected to the rear side edge of the top wall;
A pair of first folding pieces continuously formed on the left and right sides of the connecting wall;
A pair of second folding pieces provided between the left and right side walls and the front side wall;
A pair of third folding pieces provided between the left and right cover walls and the front cover wall,
The left and right side walls are bottom side outer walls formed continuously with the bottom wall, the bottom side inner walls facing the bottom side outer walls, the bottom side outer walls and the upper side walls connecting the bottom side inner walls on the upper side; A bottom wall affixing part that is continuously formed on the lower side of the bottom side inner wall and is affixed to the inner surface of the bottom wall;
The left and right cover walls are continuously formed on the top wall, the top wall is continuously formed on the top wall, and the top wall is continuously formed on the top wall, and the top wall is continuously formed on the top wall. In a deployment body of a packaging paper box having a ceiling wall affixing part affixed to
The sheet is provided such that its front surface constitutes the outer surface of the packaging paper box and its rear surface constitutes the inner surface of the packaging paper box,
A bottom wall equivalent part corresponding to the bottom wall, a top wall equivalent part corresponding to the top wall, a connection wall equivalent part corresponding to the connection wall, a front side wall equivalent part corresponding to the side wall on the front side, and a front side A front cover wall corresponding portion corresponding to the cover wall of
Folding the boundary between the bottom outer wall equivalent part corresponding to the bottom outer wall and the bottom wall equivalent part as a crease, the back surfaces of the bottom outer wall equivalent part and the bottom wall equivalent part are folded so as to face each other,
The back surfaces of the bottom inner wall equivalent portion and the upper wall equivalent portion are opposed to each other with a boundary between the bottom inner wall equivalent portion corresponding to the bottom inner wall and the upper wall equivalent portion corresponding to the upper wall as a crease. Folded
Folding the boundary between the bottom side inner wall equivalent part and the bottom wall sticking equivalent part corresponding to the bottom wall sticking part as a crease, the bottom side inner wall equivalent part and the bottom wall sticking equivalent part face each other. In this state, the bottom wall is attached to the bottom wall at the back side of the bottom wall equivalent part and the bottom side outer wall equivalent part by a dimension in the left-right direction of the upper wall equivalent part. Affixed to the back of the equivalent part,
A first fold line is provided at a boundary between the upper wall equivalent part and the bottom outer wall equivalent part,
Folding the boundary between the top side outer wall equivalent part and the top wall equivalent part corresponding to the top side outer wall as a crease, the back surfaces of the top side outer wall equivalent part and the ceiling wall equivalent part are folded so as to face each other,
A boundary between the top outer wall equivalent portion and the top inner wall equivalent portion corresponding to the top inner wall is a crease,
Folded so that the back surfaces of the top side outer wall equivalent part and the top side inner wall equivalent part face each other,
Folding the boundary between the top side inner wall equivalent part and the top wall sticking equivalent part corresponding to the top wall sticking part as a crease, the surfaces of the top side inner wall equivalent part and the top wall sticking equivalent part are opposed to each other. In this state, the back surface of the ceiling wall equivalent part is a little inside the boundary between the ceiling wall equivalent part and the ceiling outer wall equivalent part, and is attached to the back surface of the ceiling wall equivalent part,
The back surfaces of the first folded piece equivalent portion and the connecting wall equivalent portion are opposed to each other with the boundary between the first folded piece equivalent portion corresponding to the pair of first folded pieces and the connecting wall equivalent portion as a fold. Folded
The back surfaces of the second folded piece equivalent portion and the front sidewall equivalent portion are opposed to each other with the boundary between the second folded piece equivalent portion corresponding to the pair of second folded pieces and the front sidewall equivalent portion as a fold. Folded
The back surfaces of the third folded piece equivalent part and the front covering wall equivalent part face each other with the boundary between the third folded piece equivalent part corresponding to the pair of third folded pieces and the front covering wall equivalent part as a fold. An unfolded body of a wrapping paper box, which is folded to A part of the back surface of the pair of first folding piece equivalent parts is affixed to the back surface of the connection wall equivalent part,
A part of the back surface of the pair of second folding piece equivalent parts is attached to the back surface of the front side wall equivalent part,
Wherein a portion of the back surface of the pair of third folding piece corresponding portion, said forward cover wall corresponding portion Claim 1 Symbol placement development of packaging material box can be characterized that are affixed to the bottom of. The front side wall is connected to the front bottom side outer wall continuously formed on the bottom wall, the front bottom side inner wall facing the front bottom side outer wall, and the front bottom side outer wall and the front bottom side inner wall on the upper side. And a front upper wall to
The front side covering wall has a front top side outer wall continuously formed on the top wall, and a front top side inner wall continuously formed and overlapped with the front top side outer wall;
The front side wall equivalent portion is a front bottom side outer wall equivalent portion corresponding to the front bottom side outer wall, a front bottom side inner wall equivalent portion corresponding to the front bottom side inner wall, and a front upper wall equivalent to the front upper wall. And
Have
The front covering wall equivalent portion includes a front ceiling side outer wall equivalent portion corresponding to the front ceiling side outer wall, and a front ceiling side inner wall equivalent portion corresponding to the front ceiling side inner wall;
Folding the boundary between the second folded piece equivalent part and the front bottom side outer wall equivalent part as a crease, the back surfaces of the second folded piece equivalent part and the front bottom side outer wall equivalent part are folded to face each other,
The boundary between the third folded piece equivalent part and the front top side outer wall equivalent part is a crease, and the back side of the third folded piece equivalent part and the front top side outer wall equivalent part is folded so as to face each other,
The boundary between the front bottom side outer wall equivalent part and the front upper wall equivalent part is a crease, and the front upper wall equivalent part is the second folding piece equivalent part as the front upper wall equivalent part and the front bottom side outer wall. A second fold line is provided at the boundary between the front upper wall equivalent part and the front bottom side inner wall equivalent part, and is folded between the corresponding parts.
With the boundary between the front top side outer wall equivalent part and the front top side inner wall equivalent part as a crease, the front top side inner wall equivalent part has the third folding piece equivalent part as the front ceiling side inner wall equivalent part and the front ceiling. The development body of the wrapping paper box according to claim 1 or 2, wherein the wrapping paper box is folded so as to be sandwiched between the side outer wall equivalent portion. The development body of a wrapping paper box according to any one of claims 1 to 3 , wherein each of the folds is formed by pressing using a machine. A pair of the first folding piece equivalent parts,
A slit is provided between the first folded piece equivalent part and the top side outer wall equivalent part, and is continuously formed on the bottom side outer wall equivalent part, or
Any one of Claim 1 thru | or 4 which has a slit between the said 1st folding piece equivalent part and the said bottom side outer wall equivalent part, and is continuously formed in the said top side outer wall equivalent part. An expanded form of the packaging paper box according to claim 1. A packaging paper box formed by folding a development body of the packaging paper box according to any one of claims 1 to 5 ,
The left and right side wall corresponding portions corresponding to the left and right side walls are folded up in directions away from the bottom wall corresponding portion, whereby the front side wall corresponding portion and the connecting wall corresponding portion are folded. The three side walls are formed upright on the left and right and front edges of the bottom wall,
Left and right side cover wall equivalent parts corresponding to the left and right cover walls are folded up in directions away from the top wall equivalent part, whereby the front cover wall equivalent part is folded up, and the three A covering wall is erected and formed on the left and right and front edges of the top wall,
The first folding piece is formed by folding the surface corresponding to the first folding piece corresponding to the fold line so that the surfaces face each other.
The second folded piece is formed by being folded so that the surfaces are opposed to each other with the middle of the portion corresponding to the second folded piece as a crease,
A wrapping paper box, wherein the third folded piece is formed by being folded so that surfaces of the third folded piece-corresponding portions are opposed to each other with a fold as a crease. A support plate for supporting the left and right side walls at a boundary position between the bottom wall and the connecting wall;
The first folding piece includes a first triangular piece and a second triangular piece continuously formed on the first triangular piece, and a boundary between the first triangular piece and the second triangular piece is used as a fold. Folded so that the surfaces of the first triangular piece and the second triangular piece face each other,
The support plate includes a standing plate provided to face the inner surface of the connecting wall, and a pair of insertion pieces continuously formed on the standing plate,
The standing plate and the pair of insertion pieces are folded so as to face each other,
The pair of insertion pieces are respectively inserted from above between the first triangular piece and the second triangular piece, and the support plate is attached to the box body. 6. Packaging paper box according to 6 . A wrapping paper box formed by folding at least one sheet,
A box body having a rectangular bottom wall having four edges on the front, rear, left and right, and three side walls standing from the left and right edges and the front edge of the bottom wall, and having an opening on the upper side;
A lid having four edges on the front, rear, left and right, covering the opening, and three covering walls standing from each edge of the ceiling wall and covering the three side walls of the box body. When,
A connecting wall that is erected from a rear edge of the bottom wall and is connected to a rear edge of the top wall; A pair of first folding pieces continuously formed on the left and right sides of the connecting wall;
A pair of second folding pieces provided between the left and right side walls and the front side wall;
A pair of third folding pieces provided between the left and right cover walls and the front cover wall; Huh,
The left and right side walls are a bottom side outer wall formed continuously with the bottom wall, and a bottom side facing the bottom side outer wall An inner wall, an upper wall connecting the bottom outer wall and the bottom inner wall on the upper side, and a lower side of the bottom inner wall A bottom wall sticking part that is continuously formed on the side and stuck to the inner surface of the bottom wall,
The left and right covering walls have a top side outer wall continuously formed on the top wall, and a top side inner wall continuously formed and overlapped with the top side outer wall,
The sheet is provided such that its front surface constitutes the outer surface of the packaging paper box and its rear surface constitutes the inner surface of the packaging paper box,
A bottom wall equivalent part corresponding to the bottom wall, a top wall equivalent part corresponding to the top wall, a connection wall equivalent part corresponding to the connection wall, a front side wall equivalent part corresponding to the side wall on the front side, and a front side A front cover wall corresponding portion corresponding to the cover wall of
Folding the boundary between the bottom outer wall equivalent part corresponding to the bottom outer wall and the bottom wall equivalent part as a crease, the back surfaces of the bottom outer wall equivalent part and the bottom wall equivalent part are folded so as to face each other,
The back surfaces of the bottom inner wall equivalent portion and the upper wall equivalent portion are opposed to each other with a boundary between the bottom inner wall equivalent portion corresponding to the bottom inner wall and the upper wall equivalent portion corresponding to the upper wall as a crease. Folded
Folding the boundary between the bottom side inner wall equivalent part and the bottom wall sticking equivalent part corresponding to the bottom wall sticking part as a crease, the bottom side inner wall equivalent part and the bottom wall sticking equivalent part face each other. In this state, the bottom wall is attached to the bottom wall at the back side of the bottom wall equivalent part and the bottom side outer wall equivalent part by a dimension in the left-right direction of the upper wall equivalent part. Affixed to the back surface of the corresponding part, a first fold line is provided at the boundary between the upper wall equivalent part and the bottom outer wall equivalent part,
Folding the boundary between the top side outer wall equivalent part and the top wall equivalent part corresponding to the top side outer wall as a crease, the back surfaces of the top side outer wall equivalent part and the ceiling wall equivalent part are folded so as to face each other,
The boundary between the top outer wall equivalent portion and the top inner wall equivalent portion corresponding to the top inner wall is a crease, and the back surfaces of the top outer wall equivalent portion and the top inner wall equivalent portion are folded so as to face each other. In this state, a part of the back surface of the top side outer wall equivalent part is affixed to the back side of the top side inner wall equivalent part,
The back surfaces of the first folded piece equivalent portion and the connecting wall equivalent portion are opposed to each other with the boundary between the first folded piece equivalent portion corresponding to the pair of first folded pieces and the connecting wall equivalent portion as a fold. Folded
The back surfaces of the second folded piece equivalent portion and the front sidewall equivalent portion are opposed to each other with the boundary between the second folded piece equivalent portion corresponding to the pair of second folded pieces and the front sidewall equivalent portion as a fold. Folded
The back surfaces of the third folded piece equivalent part and the front covering wall equivalent part face each other with the boundary between the third folded piece equivalent part corresponding to the pair of third folded pieces and the front covering wall equivalent part as a fold. Folded to
The left and right side wall corresponding portions corresponding to the left and right side walls are folded up in directions away from the bottom wall corresponding portion, whereby the front side wall corresponding portion and the connecting wall corresponding portion are folded. The three side walls are formed upright on the left and right and front edges of the bottom wall,
Left and right side cover wall equivalent parts corresponding to the left and right cover walls are folded up in directions away from the top wall equivalent part, whereby the front cover wall equivalent part is folded up, and the three A covering wall is erected and formed on the left and right and front edges of the top wall,
The first folding piece is formed by folding the surface corresponding to the first folding piece corresponding to the fold line so that the surfaces face each other.
The second folded piece is formed by being folded so that the surfaces are opposed to each other with the middle of the portion corresponding to the second folded piece as a crease,
The third folding piece is formed by being folded so that the surfaces of the third folding piece equivalent part are opposed to each other with a fold as the crease,
A support plate for supporting the left and right side walls at a boundary position between the bottom wall and the connecting wall;
The first folding piece includes a first triangular piece and a second triangular piece continuously formed on the first triangular piece, and a boundary between the first triangular piece and the second triangular piece is used as a fold. Folded so that the surfaces of the first triangular piece and the second triangular piece face each other,
The support plate includes a standing plate provided to face the inner surface of the connecting wall, and a pair of insertion pieces continuously formed on the standing plate,
The standing plate and the pair of insertion pieces are folded so as to face each other, and the pair of insertion pieces are respectively inserted from above between the first triangular piece and the second triangular piece. A wrapping paper box, wherein the support plate is mounted on the box body.

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