JP2012111528A - Paper container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper container which can be assembled without using a paste, and being good looking when a lid is opened.SOLUTION: The paper container A having a container body B and the lid C is completed by assembling a body development pattern paper Y and a lid development pattern paper Z formed by a sheet of paper. The body development pattern paper Y contains a left sidewall (a body left outer plate 2 and a body left inner plate 6), a right sidewall (a body right outer plate 3 and a body left inner plate 7) of body bottom plates 1, 2 pieces and pairing-up two sheets of inner bottom plates (a left inner bottom plate 26 and a right inner bottom plate 27), and also two pieces of the left sidewalls and two pieces of the right sidewalls each are folded to build the left sidewall E and the right sidewall F of the container body B as a double structure. The pairing two sheets of inner bottom plates expand over the body bottom plate 1 toward the center from the right sidewall and the right sidewall so as to be laminated, and each are engaged with each other at the center on the body bottom plate 1 so as to build the double structure as the bottom wall G of the container body B.

Description

  The present invention relates to a paper container for storing articles.

As a paper container, Patent Document 1 proposes a paper container formed by assembling a single pattern.
In the paper container described in Patent Document 1, a front plate, a rear plate, a left side plate, and a right side plate are connected to a bottom plate. The front folding plate connected to the front plate is folded and glued to the front plate, the rear folding plate joined to the rear plate is folded and glued to the rear plate, and the left folding plate is connected to the left side plate. Is folded and glued to the left side plate. As a result, a box body having a front wall, a rear wall, and a left wall is completed.

  A top plate is connected to the right side plate. A front plate, a rear plate, and a left side plate are connected to the top plate. The front folding plate connected to the front plate is folded and glued to the front plate, the rear folding plate joined to the rear plate is folded and glued to the rear plate, and the left folding plate is connected to the left side plate. Is folded and glued to the left side plate. Thereby, the cover body which has a front wall, a rear wall, and a left wall is completed. The box body and the lid are connected by a right side plate.

Japanese Utility Model Publication No. 6-37120

Assembling the paper container of Patent Document 1 requires a step of gluing, which is troublesome.
Moreover, in the paper container of patent document 1, since the back surface of the pattern appears on the inner surface of the bottom wall of the box body that is easily noticeable when the lid is opened in a completed state, the appearance is poor.
The present invention has been made under such a background, and has as its main object to provide a paper container that can be assembled without using glue.

  Another object of the present invention is to provide a paper container that looks good when the lid is opened.

  The invention according to claim 1 is a paper container comprising a container body and a lid connected to the container body, in which the main body development paper and the lid development paper formed of a single sheet of paper are assembled, and the main body The partially developed paper pattern includes a bottom plate, two pieces of the left side wall, two pieces of the right side wall, and a pair of two inner bottom plates. The two pieces of the left side wall and the two pieces of the right side wall are folded, respectively. The left side wall and the right side wall of the container main body have a double structure, and the paired two-leaf inner bottom plates extend from the left side wall and the right side wall so as to be stacked on the bottom plate toward the center, The paper container is characterized in that the bottom wall of the container main body has a double structure by engaging with each other at the center on the bottom plate.

According to a second aspect of the present invention, each of the inner leaves of the two leaves has a tongue-like portion that bulges from the tip side, and the tongue-like portions are arranged symmetrically in a state of being engaged with each other. The paper container according to claim 1, characterized in that it is a feature.
According to a third aspect of the present invention, the main body unfolding pattern includes a front side wall and a rear side wall, and a pair of left and right connecting strips protrude from both ends of the front side wall and both ends of the rear side wall, respectively. By connecting the connecting band pieces and the right connecting band pieces, the bent state of the front side wall and the rear side wall bent at a right angle with respect to the bottom plate is maintained. A paper container according to claim 1 or 2.

The invention according to claim 4 is the paper container according to claim 3, wherein the pair of left and right connecting strips are each formed with a notch for connection.
According to a fifth aspect of the present invention, the left and right side walls of the two pieces are folded so as to sandwich the connected left and right connecting strips after the left and right connecting strips are connected to each other. The paper container according to claim 3, wherein the paper container is a paper container.

According to a sixth aspect of the present invention, the front side wall includes two pieces and a locking piece protruding from the tip of the two pieces, and the two pieces are folded so that the front side wall of the container body has a double structure. 4. The paper container according to claim 3, wherein the locking piece is sandwiched and locked between the bottom plate and the two-leaf inner bottom plate.
According to a seventh aspect of the present invention, the cover part deployable paper is connected to the main body part deployable paper via the rear side wall, and the cover part deployable paper comprises a cover plate, two pieces of front side walls, a left side wall, and The paper container according to claim 3, wherein the paper container includes a right side wall, and the front wall of the two pieces is folded so that the front side wall of the lid has a double structure.

  According to an eighth aspect of the present invention, the lid developing paper pattern includes two pieces of the left side wall, two pieces of the right side wall, and a pair of two-leaf inner lid plates, the two pieces of the left side wall and the two pieces of the right side wall. Each of the walls is folded so that the left side wall and the right side wall of the lid have a double structure, and the two-leaf inner lid plates that form the pair are centered along the lower surface of the lid plate from the left side wall and the right side wall. The paper container according to claim 7, wherein the top wall of the lid has a double structure by extending toward each other and engaging with each other at the center of the lower surface of the lid plate.

  According to a ninth aspect of the present invention, the inner leaflets of the two leaves each have a tongue-like portion that bulges from the tip side, and the tongue-like portions are arranged symmetrically in a state of being engaged with each other. The paper container according to claim 8.

According to the first aspect of the present invention, a paper container having a container main body and a lid connected to the container main body is completed by assembling the main body developed paper and the lid developed paper formed of one sheet of paper. .
The main body developing paper pattern includes a bottom plate, two pieces of the left side wall, two pieces of the right side wall, and a pair of two inner bottom plates. The two pieces of the left side wall and the two pieces of the right side wall are folded. Thus, the left side wall and the right side wall of the container body have a double structure. The paired two-leaf inner bottom plates extend from the left side wall and the right side wall so as to be stacked on the bottom plate toward the central portion, and engage with each other at the central portion on the bottom plate, so that the bottom wall of the container body Is a double structure.

In this case, the surface of the main body developing paper can be the outer surface and the inner surface of the left side wall, the right side wall, and the bottom wall of the container main body. Then, since the surface of the main body developing paper pattern comes across the entire inner surface of the bottom wall of the container main body, which is easily noticeable when the lid is opened, the appearance is good.
Further, if the paper container is completed by assembling the main body deployable paper and the lid deployable paper formed of a single sheet of paper, and the two leaf inner bottom plates are engaged with each other at the center on the bottom plate Since the left side wall, the right side wall, and the bottom wall of the double structure of the container body are completed, the paper container can be assembled without using glue.

According to the invention described in claim 2, each of the inner leaflets of the two leaves has a tongue-shaped portion that bulges from the tip side, and these tongue-shaped portions are arranged symmetrically in a state of being engaged with each other. . Therefore, on the inner surface of the bottom wall of the container main body, which is noticeable when the lid is opened, the appearance of regular arrangement appears because the tongue-like portions are symmetric, so that it looks better.
According to the third aspect of the present invention, the main body developing paper pattern includes a front side wall and a rear side wall, and a pair of left and right connecting strips protrude from both ends of the front side wall and both ends of the rear side wall, respectively. Then, by connecting the left connecting band pieces and the right connecting band pieces, the bent state of the front side wall and the rear side wall bent at a right angle with respect to the bottom plate is maintained.

Thereby, in the container main body, the relative position between the front side wall and the rear side wall can be stabilized, and the rigidity of the front side wall and the rear side wall can be increased.
According to the fourth aspect of the present invention, since the pair of left and right connecting strips are formed with notches for connection, the left connecting strips and the right connecting strip are used without using glue. The pieces can be joined at the notch, and as a result, the paper container can be assembled without using glue.

  According to the fifth aspect of the present invention, the left and right side walls of the two pieces are folded so as to sandwich the connected left and right connecting strips after the left and right connecting strips are connected to each other. Yes. In this case, in the container body, in each of the left side wall and the right side wall of the double structure, the left side wall and the right side wall are bent at a right angle with respect to the bottom plate by the connecting strips sandwiched inside. The state can be maintained, and the rigidity of the left side wall and the right side wall can be increased.

  According to the invention described in claim 6, the front side wall includes two pieces and a locking piece protruding from the tip of the two pieces, and the two pieces are folded and the front side wall of the container body is doubled. It becomes. In this case, the surface of the main body developing paper can be the outer surface and the inner surface of the front side wall of the container main body. Then, since the surface of the main body unfolding pattern comes on the inner and outer surfaces of the front side wall of the container main body that is noticeable when the lid is opened, the appearance is good.

Since the locking piece is sandwiched and locked between the bottom plate and the two-leaf inner bottom plate, the front side wall of the double structure of the container body can be stabilized without losing its shape.
According to the seventh aspect of the present invention, the lid development paper is connected to the main body development paper via the rear side wall, and includes the lid plate, the two front side walls, the left side wall, and the right side wall. The two front side walls are folded so that the front side wall of the lid has a double structure. In this case, the surface of the lid-developing paper can be the outer surface and the inner surface of the front side wall of the lid. Then, since the surface of the lid-developing pattern paper comes on the inner and outer surfaces of the front side wall of the lid that is noticeable when the lid is opened, the appearance is good.

  According to the eighth aspect of the present invention, the cover development pattern includes two pieces of the left side wall, two pieces of the right side wall, and a pair of two-leaf inner lid plates, and the two pieces of the left side wall and the two pieces. Each of the right side walls is folded so that the left side wall and the right side wall of the lid have a double structure. The paired two-leaf inner lid plates extend from the left side wall and the right side wall along the bottom surface of the lid plate toward the central portion, engage with each other at the central portion of the bottom surface of the lid plate, and the top wall of the lid 2 A heavy structure.

In this case, the surface of the lid-developing pattern paper can be the outer surface and the inner surface of each of the left side wall, the right side wall, and the top wall of the lid. Then, since the surface of the lid-developing pattern paper comes across the entire inner surface of the top wall of the lid that is noticeable when the lid is opened, the appearance is good.
In addition, if the two leaf inner lid plates are engaged with each other at the center of the lower surface of the lid plate, the left side wall, the right side wall and the top wall of the double structure of the lid are completed. Can be assembled into.

  According to the ninth aspect of the present invention, each of the two-leaf inner lid plates has tongue-like portions that bulge from the tip side, and these tongue-like portions are arranged symmetrically in a state of being engaged with each other. The Therefore, on the inner surface of the top wall of the lid that is noticeable when the lid is opened, the appearance of the tongue-shaped portions arranged regularly becomes visible, so that it looks better.

FIG. 1 is a development view of a paper container A according to the first embodiment of the present invention. FIG. 2 is a perspective view of the paper pattern X that is the basis of the paper container A, and shows a state in the middle of assembling the paper container A. FIG. FIG. 3 is a perspective view of the pattern X, showing the next step of FIG. FIG. 4 is a perspective view of the pattern X, showing the next step of FIG. FIG. 5 is a perspective view of the pattern X, showing the next step of FIG. FIG. 6 is a perspective view of the pattern X, showing the next step of FIG. FIG. 7 is a perspective view of the pattern X, showing the next step of FIG. FIG. 8 is a perspective view of the pattern X and shows the next step of FIG. FIG. 9 is a perspective view of the paper container A in a completed state, showing a state in which the lid C is opened. FIG. 10 is a perspective view of the paper container A in a completed state, showing a state where the lid C is closed. FIG. 11 is a development view of the paper container A according to the second embodiment of the present invention. FIG. 12 is a perspective view of the pattern X that is the basis of the paper container A, and shows a state in the middle of assembling the paper container A. FIG. FIG. 13 is a perspective view of the pattern X, showing the next step of FIG. FIG. 14 is a perspective view of the pattern X, showing the next step of FIG. FIG. 15 is a perspective view of the pattern X and shows the next step of FIG. FIG. 16 is a perspective view of the pattern X, showing the next step of FIG. FIG. 17 is a perspective view of the pattern X, showing the next step of FIG. FIG. 18 is a perspective view of the pattern X, showing the next step of FIG. FIG. 19 is a perspective view of the paper container A in a completed state, and shows a state in which the lid C is opened. FIG. 20 is a perspective view of the paper container A in a completed state, showing a state where the lid C is closed. FIG. 21 is a development view of the paper container A according to the third embodiment of the present invention. FIG. 22 is a perspective view of the paper pattern X that is the basis of the paper container A, and shows a state in the middle of assembling the paper container A. FIG. FIG. 23 is a perspective view of the pattern X and shows the next step of FIG. FIG. 24 is a perspective view of the pattern X, showing the next step of FIG. FIG. 25 is a perspective view of the pattern X and shows the next step of FIG. FIG. 26 is a perspective view of the pattern X, showing the next step of FIG. FIG. 27 is a perspective view of the pattern X and shows the next step of FIG. FIG. 28 is a perspective view of the pattern X and shows the next step of FIG. FIG. 29 is a perspective view of the pattern X, showing the next step of FIG. FIG. 30 is a perspective view of the paper container A in a completed state, showing a state where the lid C is opened. FIG. 31 is a perspective view of the paper container A in a completed state, and shows a state in which the lid C is closed.

Embodiments of the present invention will be specifically described below with reference to the drawings.
The paper container A according to the present invention (hereinafter simply referred to as “container A”) has three implementations from the first to the third, depending on the difference in the fine parts (mainly the lid C described later). There is a form.
Below, each embodiment is described.
<First Embodiment>
FIG. 1 is a development view of a container A according to the first embodiment of the present invention. 2 to 8 are perspective views showing a process of assembling the container A. FIG. 9 and 10 are perspective views of the completed container A. FIG.

The container A has a substantially square shape in plan view, and has a substantially rectangular parallelepiped shape that is flattened up and down (see FIG. 10). The container A has a container main body B whose upper surface is opened and a lid C connected to the rear end of the container main body B (see FIG. 9). The lid C opens and closes the upper surface of the container main body B by rotating around the connecting portion with the container main body B.
The entire container A is formed by assembling a paper pattern X formed of one piece of paper shown in FIG. The pattern paper X is formed by cutting a piece of paper (such as cardboard) so as to match the development view of the container A. 1 is the front side of the paper pattern X and the container A, and the upper side of FIG. 1 is the rear side of the paper pattern X and the container A. In addition, the surface of the paper pattern X that appears in FIG. 1 is the back surface of the paper pattern X. The back surface of the pattern paper X is generally a rough and rough surface, as shown with dots in FIG. On the other hand, the surface of the pattern paper X is a smooth surface. In this embodiment, in order to distinguish it from the back surface, no dot is attached to the front surface.

The pattern paper X integrally includes a main body development pattern Y that is a part constituting the container main body B and a lid development pattern Z that is a part constituting the lid C.
The main body development pattern Y includes a main body bottom plate 1, a main body left outer plate 2, a main body right outer plate 3, a main body front outer plate 4, a main body rear outer plate 5, a main body left inner plate 6, a left inner bottom plate 26, and a main body right inner plate. 7, right inner bottom plate 27, left front connecting strip 8, right front connecting strip 9, main body front inner plate 10, locking piece 11, left rear connecting strip 12, and right rear connecting strip 13. The main body front outer plate 4, the main body front inner plate 10 and the locking piece 11 constitute the front side wall of the container main body B, and the main body rear outer plate 5 forms the rear side wall of the container main body B. The main body left outer plate 2 and the main body left inner plate 6 form two left side walls of the container body B, and the main body right outer plate 3 and main body right inner plate 7 form the two pieces of right side wall of the container main body B. None, the left inner bottom plate 26 and the right inner bottom plate 27 form a two-leaf inner bottom plate that forms a pair in the container body B.

  The cover-expandable pattern paper Z includes a cover plate 14, a cover left outer plate 15, a cover right outer plate 16, a cover front outer plate 17, a cover left inner plate 18, a first left insertion piece 20, and a second left insertion piece 19. The lid right inner plate 21, the first right insertion piece 23, the second right insertion piece 22, the lid front inner plate 24 and the lid extension plate 25 are included. The lid left outer plate 15 forms the left side wall of the lid C, the lid right outer plate 16 forms the right side wall of the lid C, and the lid front outer plate 17 and the lid front inner plate 24 are in front of the two pieces of the lid C. Make side walls.

The main body bottom plate 1 is formed in a square shape, and has left and right end edges extending in the front-rear direction and front and rear end edges extending in the left-right direction.
The main body left outer plate 2 is formed in an elongated rectangular shape in the front-rear direction, and is connected to the entire area of the left end edge of the main body bottom plate 1. A crease 100 extends forward and backward at the boundary between the main body left outer plate 2 and the left end edge of the main body bottom plate 1. The crease may be a perforation (the same applies to other creases).

The main body right outer plate 3 has the same shape as the main body left outer plate 2 and is connected to the entire area of the right end edge of the main body bottom plate 1. A fold line 101 extends back and forth at the boundary between the main body right outer plate 3 and the right end edge of the main body bottom plate 1.
The main body front outer plate 4 is formed in an elongated rectangular shape on the left and right, and is connected to the entire area of the front end edge of the main body bottom plate 1. A fold line 102 extends left and right at the boundary between the main body front outer plate 4 and the front end edge of the main body bottom plate 1. The front-rear direction dimensions of the main body front outer plate 4 and the left-right direction dimensions of the main body left outer plate 2 and the main body right outer plate 3 are substantially the same.

The main body rear outer plate 5 has the same shape as the main body front outer plate 4 and is connected to the entire rear end edge of the main body bottom plate 1. At the boundary between the main body rear outer plate 5 and the rear end edge of the main body bottom plate 1, a fold line 103 extends to the left and right.
The main body left inner plate 6 has the same shape as the main body left outer plate 2 and is connected to the entire area of the left end edge of the main body left outer plate 2. A fold line 104 extends back and forth at the boundary between the main body left inner plate 6 and the left end edge of the main body left outer plate 2.

  The left inner bottom plate 26 has a substantially rectangular shape having a size capable of covering the left half of the main body bottom plate 1, and is connected to the entire area of the left end edge of the main body left inner plate 6. A fold line 106 extends back and forth at the boundary between the left inner bottom plate 26 and the left end edge of the main body left inner plate 6. A substantially triangular notch 150 is formed at a substantially central position in the front-rear direction of the left end edge, which is the left tip side, of the left inner bottom plate 26. Further, a tongue-like portion 151 bulging from the left end edge of the left inner bottom plate 26 to the left front side is formed on the left end edge of the left inner bottom plate 26 so as to be continuous with the front portion of the notch 150. A group of the notch 150 and the tongue-shaped portion 151 is a first engaging portion 51, and is provided at the left end edge of the left inner bottom plate 26.

The main body right inner plate 7 has the same shape as the main body right outer plate 3 and is connected to the entire area of the right end edge of the main body right outer plate 3. A fold 105 extends forward and backward at the boundary between the main body right inner plate 7 and the right end edge of the main body right outer plate 3.
The right inner bottom plate 27 has a substantially rectangular shape having a size capable of covering the right half of the main body bottom plate 1, and is connected to the entire region of the right end edge of the main body right inner plate 7. A crease 107 extends in the front-rear direction at the boundary between the right inner bottom plate 27 and the right edge of the main body right inner plate 7. A substantially triangular notch 152 is formed at a substantially center position in the front-rear direction of the right end edge, which is the right tip side, of the right inner bottom plate 27. Further, a tongue-like portion 153 bulging from the right end edge of the right inner bottom plate 27 to the right rear side is formed on the right end edge of the right inner bottom plate 27 continuously from the rear portion of the notch 152. A group of the notch 152 and the tongue-like portion 153 is a second engaging portion 52, and is provided at the right end edge of the right inner bottom plate 27.

  Here, the notch 150 of the first engagement portion 51 and the notch 152 of the second engagement portion 52 are in substantially the same position in the front-rear direction, and the tongue-like portion 151 of the first engagement portion 51 is While the front portion of the notch 150 bulges to the left front side, the tongue-like portion 153 of the second engagement portion 52 bulges from the rear portion of the notch 152 to the right rear side. That is, the tongue-shaped portion 153 bulges from the position displaced from the tongue-shaped portion 151 (first engagement portion 51) in the front-rear direction on the right inner bottom plate 27.

  The left front connecting strip 8 is formed in an elongated rectangular shape on the left and right, and is connected to the entire area of the left end edge of the main body front outer plate 4. A crease 108 extends in the front-rear direction at the boundary between the left front connecting strip 8 and the left end edge of the main body front outer plate 4. The front-rear width of the left front connecting strip 8 is narrower as it is away from the main body front outer plate 4. A third engagement portion 54 is formed at the left end portion of the front end edge of the left front connecting strip 8. The third engaging portion 54 is a notch that is recessed toward the rear side.

  The right front connecting strip 9 is the same size as the left front connecting strip 8 and is formed in an elongated rectangular shape on the left and right, and is connected to the entire area of the right end edge of the main body front outer plate 4. A crease 109 extends in the front-rear direction at the boundary between the right front connecting strip 9 and the right edge of the main body front outer plate 4. The front-rear width of the right front connecting strip 9 is narrower as the distance from the main body front outer plate 4 increases. A fourth engagement portion 55 is formed at the right end portion of the front end edge of the right front connecting strip 9. The fourth engaging portion 55 is a notch that is recessed toward the rear side.

The left front connecting strip 8 and the right front connecting strip 9 form a pair and protrude from the left and right ends of the main body front outer plate 4.
The main body front inner plate 10 has the same shape as the main body front outer plate 4 and is connected to the entire area of the front end edge of the main body front outer plate 4. A fold line 110 extends to the left and right at the boundary between the main body front inner plate 10 and the front end edge of the main body front outer plate 4. The main body front outer plate 4 and the main body front inner plate 10 form two pieces.

  The locking piece 11 has a rectangular shape that is elongated to the left and right and has the same left-right dimension as the main body front inner plate 10, and is connected to the entire area of the front end edge that is the front end of the main body front inner plate 10. Projecting from the front edge of the plate 10. The front-rear direction dimension of the locking piece 11 is smaller than the front-rear direction dimension of the main body front inner plate 10, and here is less than half of the front-rear direction dimension of the main body front inner plate 10. A fold line 111 extends left and right at the boundary between the locking piece 11 and the front end edge of the main body front inner plate 10.

  The left rear connecting strip 12 has substantially the same shape as the left front connecting strip 8 and is connected to substantially the entire left end edge of the main body rear skin 5. A crease 112 extends forward and backward at the boundary between the left rear connecting strip 12 and the left end edge of the main body rear outer plate 5. The front and rear widths of the left rear connecting strip 12 are narrowed as the distance from the main body rear outer plate 5 increases. A fifth engagement portion 56 is formed at the left end portion of the front end edge of the left rear connection strip 12. The fifth engaging portion 56 is a notch that is recessed toward the rear side.

  The right rear connecting strip 13 has substantially the same shape as the right front connecting strip 9 and is connected to substantially the entire right end edge of the main body rear outer plate 5. A fold 113 extends in the front-rear direction at the boundary between the right rear connecting strip 13 and the right end edge of the main body rear outer plate 5. The front and rear widths of the right rear connecting strip 13 are narrowed as the distance from the main body rear outer plate 5 increases. A sixth engagement portion 57 is formed at the right end portion of the front end edge of the right rear connection strip 13. The sixth engaging portion 57 is a notch recessed to the rear side.

The left rear connecting strip 12 and the right rear connecting strip 13 form a pair and protrude from the left and right ends of the main body rear outer plate 5.
The cover plate 14 is formed in a square shape having substantially the same size as the main body bottom plate 1 and has left and right end edges extending in the front-rear direction and front and rear end edges extending in the left-right direction. The entire area of the front edge of the cover plate 14 is connected to the entire area of the rear edge of the main body rear outer plate 5. A fold line 114 extends left and right at the boundary between the front end edge of the cover plate 14 and the rear end edge of the main body rear outer plate 5.

The lid plate 14 is connected to the main body bottom plate 1 via the main body rear outer plate 5. That is, the cover-part deployable paper Z including the cover plate 14 is connected to the main-body-part deployable paper Y including the main body bottom plate 1 through the main body rear outer plate 5.
The lid left outer plate 15 is formed in a long and narrow rectangular shape in the front-rear direction, and is connected to the entire area of the left end edge of the lid plate 14. The front edge of the lid left outer plate 15 is inclined rearward as it goes to the left. A fold 115 extends forward and backward at the boundary between the lid left outer plate 15 and the left edge of the lid plate 14.

The lid right outer plate 16 is formed in a long and narrow rectangular shape in the front-rear direction, and is connected to the entire area of the right end edge of the lid plate 14. The front edge of the lid right outer plate 16 is inclined rearward as it goes to the right. A fold 116 extends forward and backward at the boundary between the lid right outer plate 16 and the right edge of the lid plate 14.
The front lid outer plate 17 has the same shape as the main body rear outer plate 5 and is connected to the entire rear edge of the lid plate 14. A fold 117 extends left and right at the boundary between the front lid outer plate 17 and the rear edge of the lid plate 14.

The lid left inner plate 18 is connected to the rear end portion of the left edge of the lid left outer plate 15. A fold 118 extends forward and backward at the boundary between the lid left inner plate 18 and the left end edge of the lid left outer plate 15. The lid left inner plate 18 has a substantially triangular shape with three sides: a fold 118, a portion extending from the rear end of the fold 118 to the left side, and a portion extending from the front end of the fold 118 to the left rear side.
The first left insertion piece 20 has a rectangular shape elongated in the front-rear direction and is connected to the entire rear edge of the lid left outer plate 15. The front-rear dimension of the first left insertion piece 20 is about half of the left-right dimension of the front lid outer plate 17. A fold line 120 extends left and right at the boundary between the first left insertion piece 20 and the rear edge of the lid left outer plate 15.

  The second left insertion piece 19 has substantially the same shape as the first left insertion piece 20 and is connected to the substantially right half of the rear edge of the lid left inner plate 18. The second left insertion piece 19 and the first left insertion piece 20 are not directly connected but are separated. A fold line 119 extends right and left at the boundary between the second left insertion piece 19 and the rear edge of the lid left inner plate 18. A left notch 62 extending left and right is formed between the rear end portion of the lid left inner plate 18, strictly speaking, between the second left insertion piece 19 and the substantially left half of the rear end edge of the lid left inner plate 18. In addition, the second left insertion piece 19 and the substantially left half of the rear end edge of the lid left inner plate 18 are separated by a left notch 62. The left notch 62 is formed at a position slightly shifted to the front side with respect to the fold line 119.

  The lid right inner plate 21 is connected to the rear end portion of the right edge of the lid right outer plate 16. A crease 121 extends forward and backward at the boundary between the lid right inner plate 21 and the right edge of the lid right outer plate 16. The lid right inner plate 21 has a substantially triangular shape with three sides: a fold 121, a portion extending from the rear end of the fold 121 to the right side, and a portion extending inclined from the front end of the fold 121 to the right rear side. The shape is the same as that of the left inner plate 18.

The first right insertion piece 23 has the same shape as the first left insertion piece 20 and is connected to the entire rear edge of the lid right outer plate 16. A crease 123 extends right and left at the boundary between the first right insertion piece 23 and the rear edge of the lid right outer plate 16.
The second right insertion piece 22 has substantially the same shape as the second left insertion piece 19 and is connected to the substantially left half of the rear edge of the lid right inner plate 21. The second right insertion piece 22 and the first right insertion piece 23 are not directly connected but are separated. A crease 122 extends to the left and right at the boundary between the second right insertion piece 22 and the rear edge of the lid right inner plate 21. A right notch 63 extending rightward and leftward is formed between the rear end portion of the lid right inner plate 21, strictly speaking, between the second right insertion piece 22 and the substantially right half of the rear end edge of the lid right inner plate 21. The second right insertion piece 22 and the substantially right half of the rear end edge of the lid right inner plate 21 are separated by a right notch 63. The right notch 63 is formed at a position slightly shifted to the front side with respect to the fold 122.

  The front lid inner plate 24 has a rectangular shape that is substantially the same size as the front lid outer plate 17, and is connected to the entire rear end edge of the lid front outer plate 17. A crease 124 extends to the left and right at the boundary between the front lid inner plate 24 and the rear edge of the front lid outer plate 17. In the lid front inner plate 24, the substantially front side portion on the lid front outer plate 17 side is slightly narrower than the substantially rear side portion. The first lid left convex portion 64 bulging to the left side is connected, and the first lid right convex portion 65 bulging to the right side is connected to the rear side portion of the right end edge of the lid front inner plate 24. The first lid left convex portion 64 and the first lid right convex portion 65 have a rectangular shape that is long in the front-rear direction and flat in the left-right direction.

  The lid extension plate 25 has a rectangular shape that is slightly elongated in the left-right direction and has a slightly smaller left-right dimension than the front lid inner plate 24, and is connected to substantially the entire rear edge of the front lid inner plate 24. The front-rear direction dimension of the lid extension plate 25 is smaller than the front-rear direction dimension of the front lid inner plate 24, and is less than half the front-rear direction dimension of the front lid inner plate 24 here. A crease 125 extends to the left and right at the boundary between the lid extending plate 25 and the rear edge of the lid inner plate 24.

  Further, a substantially rectangular second lid left convex portion 60 is connected to the left end edge of the lid left inner plate 18 described above. A fold 126 extends in the front-rear direction at the boundary between the second lid left convex portion 60 and the left end edge of the lid left inner plate 18. A second lid right convex portion 61 having the same shape as the second lid left convex portion 60 is connected to the right edge of the lid right inner plate 21. A crease 127 extends forward and backward at the boundary between the second lid right convex portion 61 and the right edge of the lid right inner plate 21. The second lid left convex portion 60 and the second lid right convex portion 61 are included in the pattern paper X.

In such a pattern X, the corners are rounded (the same applies to the second and third embodiments).
Next, a procedure for assembling the container A from the paper pattern X will be described. Note that the assembly procedure of the container A shown below is merely an example, and the container A may be assembled by another assembly procedure as long as the container A is correctly completed.

First, the paper pattern X is placed on a horizontal plane so that the back surface faces upward.
Next, as shown in FIG. 2, the main body front outer plate 4 is bent upward at the fold 102 so as to be orthogonal to the main body bottom plate 1, and the main body rear outer plate 5 is orthogonal to the main body bottom plate 1. Bend upward at the fold 103. At this time, the main body front inner plate 10 and the locking piece 11 extend upward along the main body front outer plate 4.

Next, the lid plate 14 is folded rearward at the fold line 114 so as to be orthogonal to the main body rear outer plate 5 extending upward.
Next, the left front connecting strip 8 and the left rear connecting strip 12 are bent toward each other at the corresponding folds 108 and 112, and the right front connecting strip 9 and the right rear connecting strip 13 are correspondingly folded. In 109 and 113, it bends in the direction which approaches mutually. Thereby, the left front connecting strip 8 and the right front connecting strip 9 are orthogonal to the main body front outer plate 4 in the rearward direction, and the left rear connecting strip 12 and the right rear connecting strip 13 are connected to the main body rear outer plate 5. It is orthogonal to the forward direction.

  Next, the peripheral edge portion of the fifth engagement portion 56 in the left rear connection strip 12 is fitted into the third engagement portion 54 of the left front connection strip 8 so that the third engagement portion 54 and the fifth engagement portion 56 are connected. Engage and connect the left front connecting strip 8 and the left rear connecting strip 12. Similarly, the peripheral edge portion of the sixth engaging portion 57 in the right rear connecting strip 13 is fitted into the fourth engaging portion 55 of the right front connecting strip 9, and the fourth engaging portion 55 and the sixth engaging portion 57 And the right front connecting strip 9 and the right rear connecting strip 13 are connected. Thereby, the bent state of the main body front outer plate 4 and the main body rear outer plate 5 bent at a right angle to the main body bottom plate 1 is maintained.

  Here, the third engaging portion 54, the fourth engaging portion 55, the fifth engaging portion 56, and the sixth engaging portion 57 are all notches (see FIG. 1). Accordingly, the left front connecting strip 8 and the left rear connecting strip 12 can be connected to each other at the notch (the third engaging portion 54 and the fifth engaging portion 56) without using glue. The piece 9 and the right rear connecting strip 13 can be connected at the notch (the fourth engaging portion 55 and the sixth engaging portion 57).

Next, as shown in FIG. 3, the main body front inner plate 10 is folded at the fold 110 so as to be folded from the rear side with respect to the main body front outer plate 4, and the locking pieces 11 are folded into the folded main body front inner plate 10. On the other hand, the fold line 111 is bent backward so as to be orthogonal to the fold line 111. The bent locking piece 11 is opposed from above to the entire region in the left-right direction of the front end portion of the upper surface (back surface) of the main body bottom plate 1.
Next, as shown in FIG. 4, the main body left inner plate 6 is bent upward at the fold line 104 so as to be orthogonal to the main body left outer plate 2, and the left inner bottom plate 26 is bent upward. The fold line 106 is bent leftward so as to be orthogonal to the plate 6. Similarly, the main body right inner plate 7 is bent upward at the fold 105 so as to be orthogonal to the main body right outer plate 3, and the right inner bottom plate 27 is orthogonal to the main body right inner plate 7 bent upward. As shown in FIG.

  Next, the main body left outer plate 2 is folded upward at the fold line 100 so as to be orthogonal to the main body bottom plate 1, and the main body left inner plate 6 is folded at the fold line 104 so as to be folded from the right side with respect to the main body left outer plate 2. Fold it up. Then, the connected left front connecting strip 8 and left rear connecting strip 12 are sandwiched between the main body left outer plate 2 and the main body left inner plate 6 (within the main body left outer plate 2 and the main body left inner plate 6). . The left inner bottom plate 26 extends from the main body left outer plate 2 and the main body left inner plate 6 so as to be stacked on the main body bottom plate 1 toward the central portion in the left-right direction of the main body bottom plate 1, and the upper surface ( The substantially left half of the back surface is covered from above (see FIG. 5).

  Similarly, the main body right outer plate 3 is bent upward at the fold line 101 so as to be orthogonal to the main body bottom plate 1, and the main body right inner plate 7 is folded from the left side with respect to the main body right outer plate 3. Fold at. Then, the connected right front connecting strip 9 and right rear connecting strip 13 are sandwiched between the main body right outer plate 3 and the main body right inner plate 7 (within the main body right outer plate 3 and the main body right inner plate 7). . Further, the right inner bottom plate 27 extends from the main body right outer plate 3 and the main body right inner plate 7 so as to be stacked on the main body bottom plate 1 toward the central portion in the left-right direction of the main body bottom plate 1, and the upper surface ( The substantially right half of the back surface is covered from above (see FIG. 5). At this time, the locking piece 11 is sandwiched and locked between the left inner bottom plate 26 and the right inner bottom plate 27 and the main body bottom plate 1.

  Next, as shown in FIG. 5, the tongue-shaped portion 151 of the left inner bottom plate 26 is fitted into the notch 152 (see FIG. 1) of the right inner bottom plate 27 from above, and the tongue-shaped portion 153 of the right inner bottom plate 27 is further moved to the left. It fits into the notch 150 (see FIG. 1) of the inner bottom plate 26 from above. As a result, the peripheral edge of the notch 152 in the right inner bottom plate 27 sinks under the tongue-shaped portion 151 of the left inner bottom plate 26, and further, below the tongue-shaped portion 153 of the right inner bottom plate 27, The peripheral edge of the notch 150 sinks. As a result, the first engagement portion 51 of the left inner bottom plate 26 and the second engagement portion 52 of the right inner bottom plate 27 engage with each other on the central portion in the left-right direction of the main body bottom plate 1. In this state, the tongue-shaped portions 151 and 153 are arranged symmetrically while being arranged in the front-rear direction. Each of the tongue-shaped portions 151 and 153 may be formed so as to bulge in the opposite direction. In this case, when the first engaging portion 51 and the second engaging portion 52 are engaged, The order of the portions 151 and 153 before and after is reversed.

  The container main body B is completed by the engagement of the first engaging portion 51 and the second engaging portion 52. In the container main body B, a double-structured front side wall D is constituted by the main body front outer plate 4 and the main body front inner plate 10 which are folded. Further, the left side wall E having a double structure is constituted by the main body left outer plate 2 and the main body left inner plate 6 which are folded in a state where the left front connection strip 8 and the left rear connection strip 12 are sandwiched therebetween, and the right front connection strip The right side wall F having a double structure is constituted by the main body right outer plate 3 and the main body right inner plate 7 which are folded in a state where the 9 and the right rear connecting strip 13 are sandwiched therebetween. The bottom wall G of the container main body B includes a main body bottom plate 1, a left inner bottom plate 26 that covers a substantially left half of the main body bottom plate 1 from above, and a right inner bottom plate 27 that covers a substantially right half of the main body bottom plate 1 from above. This is a double structure. The rear side wall H of the container main body B is a main body rear outer plate 5.

Thus, if the first engagement portion 51 of the left inner bottom plate 26 and the second engagement portion 52 of the right inner bottom plate 27 are engaged with each other, the left side wall of the double structure of the container body B without using glue. E, right side wall F and bottom wall G are completed.
And in the container main body B, the surface of the pattern paper X has come to all surfaces other than a rear side inner surface (front side surface of the rear side wall H).

  In the container body B, the third engagement portion 54 of the left front connection strip 8 and the fifth engagement portion 56 of the left rear connection strip 12 are engaged, and the fourth engagement of the right front connection strip 9 is engaged. When the portion 55 and the sixth engagement portion 57 of the right rear connection strip 13 are engaged, the left front connection strip 8 and the left rear connection strip 12 are connected, and the right front connection strip 9 and the right rear connection are connected. The strip 13 is connected (see FIG. 4). Thus, as described above, the bent state of the main body front outer plate 4 and the main body rear outer plate 5 bent at a right angle with respect to the main body bottom plate 1 is maintained. The relative position to H can be stabilized, and the rigidity of the front side wall D and the rear side wall H can be increased.

Further, in each of the left side wall E and the right side wall F of the double structure, the connecting strips sandwiched inside (the left front connecting strip 8, the right front connecting strip 9, the left rear connecting strip 12, the right rear connecting strip) 13) is the core. Accordingly, the left side wall E and the right side wall F can be maintained in a state where the left side wall E and the right side wall F are bent at a right angle with respect to the main body bottom plate 1, and the rigidity of the left side wall E and the right side wall F can be increased.
Then, the first engagement portion 51 of the left inner bottom plate 26 and the second engagement portion 52 of the right inner bottom plate 27 are engaged, so that the left inner bottom plate 26 and the right The inner bottom plate 27 is stretched. Thereby, the relative position of the left side wall E and the right side wall F is stabilized, and each rigidity is further improved.

  Further, since the locking piece 11 (see FIG. 4) is sandwiched and locked between the main body bottom plate 1, the left inner bottom plate 26 and the right inner bottom plate 27, the front side wall D, the left side wall E, the right side wall F, the bottom The wall G and the rear side wall H are integrated in a strongly configured state, and the container body B is stable without being out of shape. Further, the left front connecting strip 8, the left rear connecting strip 12, the right front connecting strip 9, and the right rear connecting strip 13 (see FIG. 4) that maintain the rigidity of the front side wall D, the left side wall E, the right side wall F, and the rear side wall H. ) Is hidden, so it looks good.

Next, the lid C is assembled.
First, the lid left inner plate 18 is folded rightward at the fold 118, and the lid right inner plate 21 is folded leftward at the fold 121. Then, as shown in FIG. 6, the lid left inner plate 18 is folded over the rear end portion of the lid left outer plate 15, and the second left insertion piece 19 is folded over the first left insertion piece 20, and the lid right inner The plate 21 is folded on the rear end portion of the lid right outer plate 16, and the second right insertion piece 22 is folded on the first right insertion piece 23. Further, the second lid left convex portion 60 connected to the lid left inner plate 18 overlaps the end portion on the lid front outer plate 17 side at the left end portion of the lid plate 14 and is connected to the lid right inner plate 21. The second lid right convex portion 61 overlaps the end portion on the front lid outer plate 17 side at the right end portion of the lid plate 14 from above.

  Next, as shown in FIG. 7, the lid left outer plate 15 is bent upward at the fold 115 so as to be orthogonal to the lid plate 14, and the lid right outer plate 16 is orthogonal to the lid plate 14. In this manner, the fold 116 is bent upward. Then, the second lid left convex portion 60 and the second lid right convex portion 61 continue to overlap the lid plate 14 from above, while the lid left inner plate 18 folded on the rear end portion of the lid left outer plate 15. The lid right inner plate 21 folded on the rear end portion of the lid right outer plate 16 is bent upward so as to be orthogonal to the lid plate 14. At this time, based on the second lid left convex portion 60 and the second lid right convex portion 61, the second lid left convex portion 60 is bent at the fold 126 so as to follow the lid plate 14 from above, and the second lid The right convex portion 61 is bent at the fold 127 (see FIG. 1) so as to follow the lid plate 14 from above.

  Next, the overlapped second left insertion piece 19 and first left insertion piece 20 and the overlapped second right insertion piece 22 and first right insertion piece 23 are bent in a direction approaching each other. That is, the second left insertion piece 19 and the first left insertion piece 20 are bent to the right at the folds 119 and 120 so as to be orthogonal to the lid left outer plate 15 and the lid left inner plate 18, and the second right The insertion piece 22 and the first right insertion piece 23 are bent leftward at the fold lines 122 and 123 so as to be orthogonal to the lid right outer plate 16 and the lid right inner plate 21.

Next, as shown in FIG. 8, the front lid inner plate 24 is bent upward at the fold 124 so as to be orthogonal to the front lid outer plate 17, and the lid extension plate 25 is turned to the lid front inner plate 24. The fold 125 is bent backward so as to be orthogonal to the fold 125.
Next, the lid front outer plate 17 is folded upward at the fold 117 so as to be orthogonal to the lid plate 14, and the lid front inner plate 24 is folded at the fold 124 so as to be folded from the front side with respect to the lid front outer plate 17. Fold it up. Then, the overlapped second left insertion piece 19 and the first left insertion piece 20, and the overlapped second right insertion piece 22 and the first right between the front lid outer plate 17 and the front lid inner plate 24. The insertion piece 23 is sandwiched (see FIG. 9).

  At this time, as shown in FIG. 9, the lid extension plate 25 faces the lid plate 14, and the second lid left convex portion 60 and the second lid are provided between the lid extension plate 25 and the lid plate 14. The right convex portion 61 is sandwiched. The first lid left convex portion 64 at the left end of the lid front inner plate 24 is passed through a left notch 62 (see FIGS. 1 and 7) between the lid left inner plate 18 and the second left insertion piece 19. The lid left outer plate 15 and the lid left inner plate 18 are sandwiched. Further, the first lid right convex portion 65 at the right end of the lid front inner plate 24 is passed through a right notch 63 (see FIGS. 1 and 7) between the lid right inner plate 21 and the second right insertion piece 22. The lid right outer plate 16 and the lid right inner plate 21 are sandwiched. Thereby, the cover C is completed and the container A is completed. No glue is used in the process so far.

  In the lid C, a front side wall I having a double structure is constituted by the folded lid front outer plate 17 and the lid front inner plate 24, and a part of the folded lid left outer plate 15 and lid left inner plate 18 is partially formed. A left side wall J having a double structure is formed, and a right side wall K having a partially double structure is formed by the lid right outer plate 16 and the lid right inner plate 21 being folded. Alternatively, in the lid C, the lid wall 14 and the lid extending plate 25 that are folded together constitute a top wall L that is partially double.

  In the lid C, the surface of the pattern paper X is on all surfaces other than a part of the left inner surface, the right inner surface, and the inner bottom surface. Further, the first lid left convex portion 64 of the lid front inner plate 24 is sandwiched between the lid left outer plate 15 and the lid left inner plate 18, and the first lid right convex portion 65 of the lid front inner plate 24 is the lid right side. It is sandwiched between the outer plate 16 and the lid right inner plate 21, and the second lid left convex portion 60 and the second lid right convex portion 61 are sandwiched between the lid plate 14 and the lid extension plate 25. Yes. Therefore, the front side wall I, the left side wall J, the right side wall K, and the top wall L of the lid C are firmly configured in an integrated state, and the lid C is stable without being out of shape.

  Since the cover plate 14 is connected to the main body rear outer plate 5 as described above, the container main body B and the cover C are connected at the boundary (fold 114) between the cover plate 14 and the main body rear outer plate 5. . In FIG. 9, when the lid C is in an open state and the lid C is rotated forward about the fold line 114, the lid C is closed and covers the container body B from above as shown in FIG. At this time, the top wall L of the lid C blocks the upper surface (opening) of the container body B, and the left side wall J of the lid C is on the left outer side of the left side wall E of the container body B. K is on the right outer side of the right side wall F of the container main body B, and the front side wall I of the lid C is on the front outer side of the front side wall D of the container main body B. When the closed lid C is rotated rearward about the fold line 114, the lid C opens as shown in FIG.

In this way, the container A is completed by assembling the pattern X (the main body developed pattern Y and the cover developed pattern Z) formed of a single sheet of paper, so that it can be assembled without using glue. This eliminates the need for a device for pasting glue, which is convenient when a small number of containers A are produced.
Further, when the container A is assembled with the back side of the pattern paper X facing upward as described above, the surface of the pattern paper X (main body developed pattern paper Y) becomes the left side wall E, right side wall F and bottom wall of the container main body B. It becomes each outer surface and inner surface of G. In particular, when the lid C is opened, the surface that was the surface of the main body developing paper pattern Y in each of the left inner bottom plate 26 and the right inner bottom plate 27 forms the inner surface (upper surface) of the bottom wall G of the container main body B. Since the surface of the main body unfolding pattern Y comes across the entire inner surface of the bottom wall G of the container main body B which is easily noticeable, the appearance is good.

Therefore, for example, if an arbitrary decorative pattern is applied to the surface of the pattern X, when the container A is assembled, not only the outer surface of the container A but also the inner bottom surface of the container main body B (the upper surface of the bottom wall G) Since this decorative pattern appears, the decorative pattern can be applied to the container A according to various requests.
Furthermore, when the lid C is opened, the inner surface of the bottom wall G of the container body B has a regular appearance because the tongue-shaped portions 151 and 153 are arranged symmetrically.

  If the container A is assembled with the back surface of the pattern paper X facing upward, the surface of the pattern paper X (main body developed pattern paper Y) becomes the outer surface and inner surface of the front side wall D of the container main body B, and the pattern paper X (cover developed pattern paper) The surface of Z) becomes the outer surface and the inner surface of the front side wall I of the lid C. Thus, when the lid C is opened, the surface of the pattern X comes not only on the inner surface of the bottom wall G of the container main body B but also on the inner and outer surfaces of the front side wall D of the container main body B and the front side wall I of the lid C. So it looks good.

Next, 2nd Embodiment and 3rd Embodiment are described. In the first embodiment, the second embodiment, and the third embodiment, the configuration and assembly procedure of the container body B and the shape of the container A after completion are common, and only the configuration and assembly procedure of the lid C are different. Therefore, in 2nd Embodiment and 3rd Embodiment, while attaching the same code | symbol to the member same as the member demonstrated in 1st Embodiment, the description (especially description of the container main body B) is abbreviate | omitted, and a container A description of the assembly procedure of the main body B is also omitted.
Second Embodiment
FIG. 11 is a development view of the container A according to the second embodiment of the present invention. 12 to 18 are perspective views showing a process of assembling the container A. FIG. 19 and 20 are perspective views of the completed container A. FIG.

  As for the container A according to the second embodiment, the pattern X (main body developed pattern Y) shown in FIG. 11 is used as a member constituting the container main body B as in the first embodiment. 2, main body right outer plate 3, main body front outer plate 4, main body rear outer plate 5, main body left inner plate 6, left inner bottom plate 26, main body right inner plate 7, right inner bottom plate 27, left front connecting strip 8, right front connection It includes a strip 9, a main body front inner plate 10, a locking piece 11, a left rear connecting strip 12 and a right rear connecting strip 13.

However, unlike the first embodiment, a main body engaging portion 160 is formed at the rear end portion of the main body left outer plate 2 so as to bulge rearward in a substantially U shape and penetrate the main body left outer plate 2. In addition, a main body engaging portion 161 having the same shape as the main body engaging portion 160 and penetrating the main body right outer plate 3 is also formed at the rear end portion of the main body right outer plate 3. The main body engaging portion 160 and the main body engaging portion 161 are notches.
Moreover, the pattern X (lid part expansion pattern Z) of 2nd Embodiment is the member which comprises the cover C as well as 1st Embodiment, the cover plate 14, the cover left outer plate 15, the cover right outer plate 16, Front lid outer plate 17, lid left inner plate 18, first left insertion piece 20, second left insertion piece 19, lid right inner plate 21, first right insertion piece 23, second right insertion piece 22, A front lid inner plate 24 and a lid extension plate 25 are included.

However, in the second embodiment, a substantially rectangular lid engaging portion 162 that protrudes to the front side is provided at approximately the center in the left-right direction of the front edge of the lid left outer plate 15, and the left and right sides of the front edge of the lid right outer plate 16 are left and right. A substantially rectangular lid engaging portion 163 that protrudes to the front side is provided substantially in the center in the direction.
In the second embodiment, the left notch 62 has a substantially rectangular shape that is recessed from the substantially horizontal center of the rear end edge of the lid left inner plate 18 to the front side, and the right notch 63 is the lid right inner plate 21. It is a substantially rectangular shape recessed from the substantially horizontal center of the rear end edge to the front side.

Further, the lid left inner plate 18, the second left insertion piece 19, the first left insertion piece 20, the lid right inner plate 21, the second right insertion piece 22, and the first right insertion piece 23 of the second embodiment. Is smaller than the corresponding one in the first embodiment (see FIG. 1).
In the second embodiment, compared to the first embodiment, the first lid left convex portion 64 is provided at a substantially central position in the front-rear direction on the left end edge of the lid front inner plate 24, and the first lid. The right convex portion 65 is provided at a substantially central position in the front-rear direction in the right end edge of the front lid inner plate 24 (see FIG. 1). A fold 128 extends forward and backward at the boundary between the first lid left convex portion 64 and the left end edge of the lid front inner plate 24, and the boundary between the first lid right convex portion 65 and the right end edge of the lid front inner plate 24. The fold line 129 extends forward and backward.

From such a pattern X of the second embodiment, the container body B is assembled in the same manner as in the first embodiment with the back surface of the pattern X facing upward (see FIGS. 12 to 15). 12 corresponds to FIG. 2, FIG. 13 corresponds to FIG. 3, FIG. 14 corresponds to FIG. 4, and FIG. 15 corresponds to FIG.
With the container body B completed as shown in FIG. 15, the lid C is then assembled.

  First, the lid left inner plate 18 is folded rightward at the fold 118, and the lid right inner plate 21 is folded leftward at the fold 121. Then, as shown in FIG. 16, the lid left inner plate 18 is folded over the rear end portion of the lid left outer plate 15, and the second left insertion piece 19 is folded over the first left insertion piece 20. The plate 21 is folded on the rear end portion of the lid right outer plate 16, and the second right insertion piece 22 is folded on the first right insertion piece 23. Further, the second lid left convex portion 60 connected to the lid left inner plate 18 overlaps the end portion on the lid front outer plate 17 side at the left end portion of the lid plate 14 and is connected to the lid right inner plate 21. The second lid right convex portion 61 overlaps the end portion on the front lid outer plate 17 side at the right end portion of the lid plate 14 from above.

  Next, as shown in FIG. 17, the lid left outer plate 15 is bent upward at the fold 115 so as to be orthogonal to the lid plate 14, and the lid right outer plate 16 is orthogonal to the lid plate 14. In this manner, the fold 116 is bent upward. Then, while the second lid left convex portion 60 and the second lid right convex portion 61 continue to overlap the lid plate 14 from above, the lid left inner portion that overlaps the rear end portion of the lid left outer plate 15 is overlapped. Both the plate 18 and the lid right inner plate 21 folded on the rear end portion of the lid right outer plate 16 are bent upward so as to be orthogonal to the lid plate 14. At this time, based on the second lid left convex portion 60 and the second lid right convex portion 61, the second lid left convex portion 60 is bent at the fold 126 so as to follow the lid plate 14 from above, and the second lid The right convex portion 61 is bent at the fold 127 (see FIG. 11) so as to follow the lid plate 14 from above.

  Next, the overlapped second left insertion piece 19 and first left insertion piece 20 and the overlapped second right insertion piece 22 and first right insertion piece 23 are bent in a direction approaching each other. That is, the second left insertion piece 19 and the first left insertion piece 20 are bent to the right at the folds 119 and 120 so as to be orthogonal to the lid left outer plate 15 and the lid left inner plate 18, and the second right The insertion piece 22 and the first right insertion piece 23 are bent leftward at the fold lines 122 and 123 so as to be orthogonal to the lid right outer plate 16 and the lid right inner plate 21.

Next, as shown in FIG. 18, the front lid inner plate 24 is bent upward at the fold 124 so as to be orthogonal to the front lid outer plate 17, and the lid extension plate 25 is turned to the lid front inner plate 24. The fold 125 is bent backward so as to be orthogonal to the fold 125.
Next, the lid front outer plate 17 is folded upward at the fold 117 so as to be orthogonal to the lid plate 14, and the lid front inner plate 24 is folded at the fold 124 so as to be folded from the front side with respect to the lid front outer plate 17. Fold it up. Then, the overlapped second left insertion piece 19 and the first left insertion piece 20, and the overlapped second right insertion piece 22 and the first right between the front lid outer plate 17 and the front lid inner plate 24. The insertion piece 23 is sandwiched (see FIG. 19).

  At this time, as shown in FIG. 19, the lid extension plate 25 faces the lid plate 14, and the second lid left convex portion 60 and the second lid are provided between the lid extension plate 25 and the lid plate 14. The right convex portion 61 is sandwiched. Further, the first lid left convex portion 64 at the left end of the lid front inner plate 24 is passed through the left notch 62 at the rear end of the lid left inner plate 18 so that the lid left outer plate 15 and the lid left inner plate 18 Sandwiched between them. At this time, the first lid left convex portion 64 is bent forward at the fold 128 so as to be orthogonal to the lid front inner plate 24. Further, the first lid right convex portion 65 at the right end of the lid front inner plate 24 is passed through the right notch 63 at the rear end of the lid right inner plate 21 so that the lid right outer plate 16 and the lid right inner plate 21 are connected. Sandwiched between them. At this time, the first lid right convex portion 65 is bent forward at the fold 129 (see FIG. 18) so as to be orthogonal to the lid front inner plate 24.

Thus, the lid C is completed and the container A is completed. Also in the second embodiment, no glue is used in the steps so far.
In the lid C, a front side wall I having a double structure is constituted by the folded lid front outer plate 17 and the lid front inner plate 24, and a part of the folded lid left outer plate 15 and lid left inner plate 18 is partially formed. A left side wall J having a double structure is formed, and a right side wall K having a partially double structure is formed by the lid right outer plate 16 and the lid right inner plate 21 being folded. Alternatively, in the lid C, the lid wall 14 and the lid extending plate 25 that are folded together constitute a top wall L that is partially double.

  In the lid C, as in the first embodiment (see FIG. 9), the surface of the pattern X is on all the surfaces other than a part of the left inner surface, the right inner surface, and the inner bottom surface. Further, as described above, the second lid left convex portion 60 and the second lid right convex portion 61 are sandwiched between the lid extending plate 25 and the lid plate 14, and the first lid left convex portion 64 is the left notch. The first lid right convex portion 65 is fitted in the right notch 63. Therefore, in the lid C, the front side wall I, the left side wall J, the right side wall K, and the top wall L are integrated, and the lid C is stable without being deformed.

The container main body B and the lid C are connected at the boundary (fold line 114) between the lid plate 14 and the main body rear outer plate 5. In FIG. 19, the lid C is in an open state, and when the lid C is rotated forward about the fold line 114, the lid C is closed and covers the container body B from above as shown in FIG. 20.
At this time, the top wall L of the lid C blocks the upper surface (opening) of the container body B, and the left side wall J of the lid C is on the left outer side of the left side wall E of the container body B. K is on the right outer side of the right side wall F of the container main body B, and the front side wall I of the lid C is on the front outer side of the front side wall D of the container main body B.

  At this time, the lid engaging portion 162 (see FIG. 19) of the lid left outer plate 15 is fitted into the main body engaging portion 160 (see FIG. 11) of the main body left outer plate 2 from the front side. The lid engaging portion 163 of the plate 16 is fitted into the main body engaging portion 161 of the main body right outer plate 3 from the front side as shown in FIG. That is, when the lid C is closed, the main body engaging portions 160 and 161 and the lid engaging portions 162 and 163 are engaged. Therefore, it is possible to prevent the lid C from opening unexpectedly.

Then, when the closed lid C is rotated rearward about the fold line 114 with a predetermined force or more, the engagement state between the main body engaging portions 160 and 161 and the lid engaging portions 162 and 163 is canceled. The lid C is opened as shown in FIG.
In such 2nd Embodiment, there can exist the same effect as 1st Embodiment.
<Third Embodiment>
FIG. 21 is a development view of the container A according to the third embodiment of the present invention. 22 to 29 are perspective views showing a process of assembling the container A. FIG. 30 and 31 are perspective views of the completed container A. FIG.

  As for the container A according to the third embodiment, the pattern X (main body developed pattern Y) shown in FIG. 21 is used as a member constituting the container main body B as in the first and second embodiments. , Main body left outer plate 2, main body right outer plate 3, main body front outer plate 4, main body rear outer plate 5, main body left inner plate 6, left inner bottom plate 26, main body right inner plate 7, right inner bottom plate 27, left front connecting band It includes a piece 8, a right front connecting strip 9, a main body front inner plate 10, a locking piece 11, a left rear connecting strip 12 and a right rear connecting strip 13.

  Also, the pattern X (covered section pattern Z) of the third embodiment is a member constituting the cover C, as in the first and second embodiments, the cover plate 14, the cover left outer plate 15, the cover. A right outer plate 16, a front lid outer plate 17, a front lid inner plate 24 and a lid extension plate 25 are included. However, in the third embodiment, the front lid inner plate 24 is not provided with the first lid left convex portion 64 and the first lid right convex portion 65 (see FIG. 1).

  Further, the pattern X (lid section developed pattern Z) of the third embodiment is different from the first and second embodiments as members constituting the lid C, and further includes the lid left inner plate 218 and the left inner lid plate 220. The lid right inner plate 219, the right inner lid plate 221, the left insertion piece 222, and the right insertion piece 223 are included. The lid left outer plate 15 and the lid left inner plate 218 form two left side walls of the lid C, and the lid right outer plate 16 and the lid right inner plate 219 form two right walls of the lid C. The left inner lid plate 220 and the right inner lid plate 221 form a two-leaf inner lid plate that makes a pair in the lid C.

The lid left inner plate 218 has substantially the same shape as the lid left outer plate 15 and is connected to the entire region of the left end edge of the lid left outer plate 15. A fold line 230 extends back and forth at the boundary between the lid left inner plate 218 and the left end edge of the lid left outer plate 15.
The left inner lid plate 220 has a substantially rectangular shape having a size capable of covering the left half of the lid plate 14, and is connected to the entire region of the left end edge of the lid left inner plate 218. A fold line 231 extends forward and backward at the boundary between the left inner lid plate 220 and the left end edge of the lid left inner plate 218. A substantially triangular notch 269 is formed at a substantially central position in the front-rear direction of the left edge, which is the left tip side, of the left inner lid plate 220. In addition, a tongue-like portion 270 is formed at the left end edge of the left inner lid plate 220 so as to continue to the front portion of the notch 269 and bulge from the left end edge of the left inner lid plate 220 to the left front side. A group of the notch 269 and the tongue-like portion 270 is a seventh engaging portion 200 and is provided at the left end edge of the left inner lid plate 220.

The lid right inner plate 219 has substantially the same shape as the lid right outer plate 16 and is connected to the entire area of the right end edge of the lid right outer plate 16. A fold line 232 extends in the front-rear direction at the boundary between the lid right inner plate 219 and the right edge of the lid right outer plate 16.
The right inner lid plate 221 has a substantially rectangular shape having a size capable of covering the right half of the lid plate 14, and is connected to the entire right end edge of the lid right inner plate 219. At the boundary between the right inner lid plate 221 and the right edge of the lid right inner plate 219, a fold 233 extends in the front-rear direction. A substantially triangular notch 271 is formed at a substantially central position in the front-rear direction of the right end edge that is the right tip side of the right inner lid plate 221. In addition, a tongue-like portion 272 bulging from the right end edge of the right inner lid plate 221 to the right rear side is formed on the right end edge of the right inner lid plate 221 continuously from the rear side portion of the notch 271. A group of the notch 271 and the tongue-like portion 272 is an eighth engaging portion 201 and is provided on the right end edge of the right inner lid plate 221.

  Here, the notch 269 of the seventh engagement portion 200 and the notch 271 of the eighth engagement portion 201 are substantially in the same position in the front-rear direction, and the tongue-like portion 270 of the seventh engagement portion 200 is While the front portion of the notch 269 bulges to the left front side, the tongue-like portion 272 of the eighth engagement portion 201 bulges from the rear portion of the notch 270 to the right rear side. That is, the tongue-like portion 272 of the eighth engagement portion 201 bulges from the position displaced from the tongue-like portion 270 (seventh engagement portion 200) in the front-rear direction on the right inner lid plate 221.

The left insertion piece 222 has a rectangular shape elongated in the front-rear direction, and is connected to the entire rear end edge of the lid left outer plate 15. The front-rear direction dimension of the left insertion piece 222 is about half of the left-right direction dimension of the lid front outer plate 17. A fold line 234 extends to the left and right at the boundary between the left insertion piece 222 and the rear end edge of the lid left outer plate 15.
The right insertion piece 223 has the same shape as the left insertion piece 222 and is connected to the entire rear end edge of the lid right outer plate 16. A crease 235 extends to the left and right at the boundary between the right insertion piece 223 and the rear end edge of the lid right outer plate 16.

The container main body B is assembled from the pattern X of the third embodiment in a state where the back surface of the pattern X faces upward as in the first and second embodiments (see FIGS. 22 to 25). 22 corresponds to FIGS. 2 and 12, FIG. 23 corresponds to FIGS. 3 and 13, FIG. 24 corresponds to FIGS. 4 and 14, and FIG. 25 corresponds to FIGS. It corresponds to.
Next, the lid C is assembled with the container body B completed as shown in FIG.

  First, as shown in FIG. 26, the lid left outer plate 15 is bent upward at the fold 115 so as to be orthogonal to the lid plate 14, and the lid right outer plate 16 is orthogonal to the lid plate 14. Then, it is bent upward at the fold 116. Then, the lid left inner plate 218 and the left inner lid plate 220 extend upward along the lid left outer plate 15, and the lid right inner plate 219 and the right inner lid plate 221 face upward along the lid right outer plate 16. Extend to.

Next, the left insertion piece 222 and the right insertion piece 223 are bent in a direction approaching each other. That is, the left insertion piece 222 is bent rightward at the fold 234 so as to be orthogonal to the lid left outer plate 15, and the right insertion piece 223 is orthogonal to the lid right outer plate 16. Bend leftward at the crease 235.
Next, as shown in FIG. 27, the lid front inner plate 24 is bent upward at the fold 124 so as to be orthogonal to the lid front outer plate 17, and the lid extension plate 25 is turned into the lid front inner plate 24. The fold 125 is bent backward so as to be orthogonal to the fold 125.

  Next, as shown in FIG. 28, the lid front outer plate 17 is folded upward at the fold 117 so as to be orthogonal to the lid plate 14, and the lid front inner plate 24 is front side of the lid front outer plate 17. It folds in the fold 124 so that it may fold from. Then, the left insertion piece 222 and the right insertion piece 223 are sandwiched between the front lid outer plate 17 and the front lid inner plate 24. At this time, the lid extending plate 25 faces the lid plate 14 from above.

Next, as shown in FIG. 29, the left inner lid plate 220 is bent to the left at the fold 231 so as to be orthogonal to the lid left inner plate 218, and the right inner lid plate 221 is turned into the lid right inner plate 219. The fold 233 is bent to the right so as to be orthogonal to the fold.
Next, the lid left inner plate 218 is folded at the fold line 230 so as to be folded from the right side with respect to the lid left outer plate 15. Then, the left inner lid plate 220 extends from the lid left outer plate 15 and the lid left inner plate 218 along the upper surface (back surface) of the lid plate 14 toward the center in the left-right direction of the lid plate 14, and The substantially left half is covered from above (see FIG. 30). Similarly, the lid right inner plate 219 is folded at the fold 232 so as to be folded from the left side with respect to the lid right outer plate 16. Then, the right inner lid plate 221 extends from the lid right outer plate 16 and the lid right inner plate 219 along the upper surface of the lid plate 14 toward the center in the left-right direction of the lid plate 14, and is substantially the right half of the upper surface of the lid plate 14. Is covered from above (see FIG. 30). In addition, the upper surface of the cover plate 14 in FIG. 30 becomes the lower surface when the completed cover C is closed. At this time, as shown in FIG. 30, the lid extending plate 25 is sandwiched between the left inner lid plate 220 and the right inner lid plate 221 and the lid plate 14.

  Next, the tongue-like portion 270 of the left inner lid plate 220 is fitted into the notch 271 (see FIG. 21) of the right inner lid plate 221 from above, and the tongue-like portion 272 of the right inner lid plate 221 is further inserted into the left inner lid plate 220. Is fitted into the notch 269 (see FIG. 21) from above. As a result, the peripheral edge of the notch 271 in the right inner lid plate 221 sinks under the tongue-like portion 270 of the left inner lid plate 220, and further, below the tongue-like portion 272 of the right inner lid plate 221, The peripheral edge portion of the notch 269 in the cover plate 220 sinks. As a result, the seventh engagement portion 200 of the left inner lid plate 220 and the eighth engagement portion 201 of the right inner lid plate 221 are engaged with each other at the center portion in the left-right direction on the upper surface of the lid plate 14. In this state, the tongue-like portions 270 and 272 are arranged symmetrically while being aligned in the front-rear direction. Each of the tongue-like portions 270 and 272 may be formed so as to bulge in the opposite direction. In this case, when the seventh engaging portion 200 and the eighth engaging portion 201 are engaged, The order of the portions 270 and 272 before and after is reversed.

When the seventh engagement portion 200 of the left inner lid plate 220 and the eighth engagement portion 201 of the right inner lid plate 221 are engaged, the lid C is completed without using glue, and the container A is completed. Also in the third embodiment, no glue is used in the steps so far.
In the lid C, the front side wall I having a double structure is constituted by the lid front outer plate 17 and the lid front inner plate 24 being folded, and the double structure is constituted by the lid left outer plate 15 and the lid left inner plate 218 being folded. Left side wall J is configured, and the lid right outer plate 16 and the lid right inner plate 219 that are folded together form a right side wall K having a double structure. The top wall L of the lid C includes a lid plate 14, a left inner lid plate 220 that covers a substantially left half of the lid plate 14 from above, and a right inner lid plate 221 that covers a substantially right half of the lid plate 14 from above. It is a double structure comprised by these.

  In the lid C, the surface of the paper pattern X is on all surfaces including the inner surface. In the lid C, the seventh engagement portion 200 of the left inner lid plate 220 and the eighth engagement portion 201 of the right inner lid plate 221 are engaged, so that the relative position between the left side wall J and the right side wall K is increased. Is stabilized and the rigidity of each is increased. Further, a lid extension plate 25 is sandwiched between the left inner lid plate 220 and the right inner lid plate 221 and the lid plate 14. Therefore, the front side wall I, the left side wall J, the right side wall K, and the top wall L are integrated, and the lid C is stable without being deformed.

The container main body B and the lid C are connected at the boundary (fold line 114) between the lid plate 14 and the main body rear outer plate 5. In FIG. 30, the lid C is in an open state, and when the lid C is rotated forward about the fold line 114, the lid C is closed and covers the container body B from above as shown in FIG.
At this time, the top wall L of the lid C blocks the upper surface (opening) of the container body B, and the left side wall J of the lid C is on the left outer side of the left side wall E of the container body B. K is on the right outer side of the right side wall F of the container main body B, and the front side wall I of the lid C is on the front outer side of the front side wall D of the container main body B.

Then, when the closed lid C is rotated rearward about the fold line 114, the lid C opens as shown in FIG.
In the third embodiment, the same operational effects as those of the first and second embodiments can be achieved.
Furthermore, in the third embodiment, if the lid C is assembled with the back surface of the pattern X (cover part developed pattern Z) facing upward, the front surface of the cover part developed pattern Z becomes the left side wall J and right side wall of the cover C. The outer surface and the inner surface of K and the top wall L can be provided. In particular, the surface that is the surface of the lid developing pattern paper Z in each of the left inner lid plate 220 and the right inner lid plate 221 forms the inner surface of the top wall L of the lid C. For this reason, the surface of the lid developing paper Z is formed over the entire inner surface of the top wall L of the lid C that is noticeable when the lid C is opened, so that the appearance is further improved. Further, since the tongue-shaped portions 270 and 272 are arranged symmetrically on the inner surface of the top wall L of the lid C, the appearance is better.

  The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

DESCRIPTION OF SYMBOLS 1 Main body bottom plate 2 Main body left outer plate 3 Main body right outer plate 4 Main body front outer plate 5 Main body rear outer plate 6 Main body left inner plate 7 Main body right inner plate 8 Left front connection strip 9 Right front connection strip 10 Main body front inner plate 11 Stop piece 12 Left rear connecting strip 13 Right rear connecting strip 14 Lid plate 15 Lid left outer plate 16 Lid right outer plate 17 Lid front outer plate 18 Lid left inner plate 19 Second left insertion piece 20 First left insertion Piece 21 lid right inner plate 22 second right insertion piece 23 first right insertion piece 24 lid front inner plate 25 lid extension plate 26 left inner bottom plate 27 right inner bottom plate 51 first engagement portion 52 second engagement portion 54 3rd engaging part 55 4th engaging part 56 5th engaging part 57 6th engaging part 60 2nd lid left convex part 61 2nd lid right convex part 62 Left notch 63 Right notch 64 1st lid Left convex portion 65 First lid right convex portion 100 Fold 101 Fold 102 Fold 103 Fold 104 Fold 105 Fold 106 Fold 1 7 folds 108 folds 109 folds 110 folds 111 folds 112 folds 113 folds 114 folds 115 folds 116 folds 117 folds 118 folds 119 folds 120 folds 121 folds 122 folds 123 creases 124 folds 125 folds Tongue part 152 Notch 153 Tongue part 160 Main body engaging part 161 Main body engaging part 162 Lid engaging part 163 Lid engaging part 200 Seventh engaging part 201 Eighth engaging part 218 Lid left inner plate 219 Lid right Inner plate 220 Left inner lid plate 221 Right inner lid plate 222 Left insertion piece 223 Right insertion piece 230 Fold 231 Fold 232 Fold 233 Fold 234 Fold 235 Fold 269 Notch 270 Tongue 27 Notch 272 Tongue part A Paper container B Container body C Lid D Front side wall E Left side wall F Right side wall G Bottom wall H Rear side wall I Front side wall J Left side wall K Right side wall L Top wall X Pattern paper Y Body part deployment pattern Z Cover section pattern

Claims (9)

A paper container having a lid connected to the container main body and the container main body, the main body developed paper and the lid developed paper formed of one sheet of paper being assembled,
The main body developing paper includes a bottom plate, two left side walls, two right side walls, and a pair of two-leaf inner bottom plates.
The two pieces of the left side wall and the two pieces of the right side wall are respectively folded so that the left side wall and the right side wall of the container body have a double structure,
The paired two-leaf inner bottom plates extend from the left side wall and the right side wall so as to be stacked on the bottom plate toward the central portion, and engage with each other at the central portion on the bottom plate, A paper container having a double bottom wall.   2. The inner leaflets of the two leaves each have a tongue-like portion that bulges from the tip side, and the tongue-like portions are arranged symmetrically while being engaged with each other. Paper container. The main body developing paper includes a front side wall and a rear side wall,
A pair of left and right connecting strips protrude from both ends of the front side wall and both ends of the rear side wall,
By connecting the left connecting band pieces and the right connecting band pieces, the bent state of the front side wall and the rear side wall bent at a right angle to the bottom plate is maintained. The paper container according to claim 1 or 2.   4. The paper container according to claim 3, wherein the pair of left and right connecting strips are formed with connecting notches.   The left and right side walls of the two pieces are folded so as to sandwich the connected left and right connecting strips after the left and right connecting strips are connected to each other, respectively. Item 4. A paper container according to item 3. The front side wall includes two pieces and a locking piece protruding from the tip of the two pieces,
The two pieces are folded so that the front side wall of the container body has a double structure,
4. The paper container according to claim 3, wherein the locking piece is sandwiched and locked between the bottom plate and the inner leaf plate of the two leaves. The lid development paper is connected to the main body development paper via the rear side wall,
The lid developing paper comprises a lid plate, two front side walls, a left side wall and a right side wall,
4. The paper container according to claim 3, wherein the front wall of the two pieces is folded and the front wall of the lid has a double structure. The lid developing paper comprises two pieces of the left side wall, two pieces of the right side wall, and a pair of two leaf inner lid plates,
The two pieces of the left side wall and the two pieces of the right side wall are respectively folded so that the left side wall and the right side wall of the lid have a double structure,
The paired two-leaf inner lid plates extend from the left side wall and the right side wall along the lower surface of the lid plate toward the central portion, engage with each other at the central portion of the lower surface of the lid plate, and The paper container according to claim 7, wherein the wall has a double structure.   9. The two-leaf inner lid plates each have a tongue-like portion that bulges from a tip side, and the tongue-like portions are arranged symmetrically in a state of being engaged with each other. The paper container described.

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