JP2020147322A - Packaging box with lid - Google Patents

Abstract

To provide a packaging box with a lid in which a box body and a lid body are connected from single base paper, which can be folded flat during the transportation and storage stages, and can be easily assembled during use.SOLUTION: A packaging box 100 with a lid in which a lid 20 is connected to a box body 10. The box body 10 includes a box bottom part 11, outer wall parts A1 to D1 and inner wall parts A2 to D2. The lid body 20 includes an outer lid top part E1, an outer lid front part F1, an inner lid front part F2, and an inner lid top part E2. The outer lid top part E1 is connected to the outer wall part C1 via a crease e1, and the inner wall part C2 is connected to the inner lid top part E2 via the crease c2.SELECTED DRAWING: Figure 1

Description

The present invention relates to a packaging box with a lid.

Conventionally, there are packaging boxes with lids described in Patent Documents 1 and 2.
The packaging box with a lid described in Patent Document 1 includes a main body and a hinge lid connected to the upper edge of the back panel of the main body via a crease serving as a hinge line. After producing a blank sheet at the factory, this blank sheet is assembled by bending or gluing each part of the blank sheet along the crease at the stage of use to complete the assembly of the main body and the hinge lid. Is.

In the packaging box with a lid described in Patent Document 2, the box body and the lid are connected by a composite material composed of a core base material such as cardboard and a flexible covering material that wraps the core base material. It is a thing. This packaging box with a lid can be used by selectively changing the folding form at the time of factory production and the packaging box form at the time of use.

Japanese Unexamined Patent Publication No. 2012-136253 Japanese Unexamined Patent Publication No. 2016-222278

In the packaging box with a lid described in Patent Document 1, when a blank sheet is assembled at a factory, the main body and the hinge lid are bulky, which impairs transportability and storability. Therefore, it is necessary to bend or glue the blank sheet at the time of use, and the assembleability at the stage of use is poor.

The packaging box with a lid described in Patent Document 2 can be used by selectively changing the folding form at the time of factory production and the packaging box form at the time of use, but the core base material and the flexible coating for wrapping the core base material. It uses a composite material made of a material as a material, and does not constitute a packaging box with a lid in which a box body and a lid are connected from a single base paper.

An object of the present invention is to construct a packaging box with a lid in which a box body and a lid are connected from a single base paper, and the packaging can be folded flat during the transportation and storage stages and easily assembled during use. To provide a box.

The invention according to claim 1 is a packaging box with a lid in which a lid is connected to a box body, via folds a1 to d1 on a square box bottom 11 and four sides A to D of the box bottom 11. The outer wall portions A1 to D1 which are connected to each other and become the outer wall of the box body in the assembled state, and the outer wall portions A1, B1 and D1 are connected to the outer sides of the outer wall portions A1, B1 and D1 via creases a2, b2 and d2, respectively. The inner wall portions A2, B2, and D2, which are the inner side walls of the box body, are connected to the lid component portion connected to the outer side of the outer wall portion C1 via the crease c2, and become the inner side wall of the box body in the assembled state. The inner wall portion C2 is connected to the side ends of the adjacent outer wall portions A1 to D1 via folds 12 and 13, and inner creases 14 having corners a to d of the box bottom portion 11 as base ends are provided. In the assembled state, the side plate connecting pieces K1 to K4 to be folded between the outer wall portion A1 and the inner wall portion A2 and between the outer wall portion C1 and the inner wall portion C2, and a crease a3 on the outside of the inner wall portions A2 and C2. , C3 and the box bottom contact pieces A3 and C3 are connected to both sides of the inner wall portions B2 and D2 via creases b3, b4 and d3 and d4, respectively, and are connected to the outer wall portion A1 and the inner wall in the assembled state. Folded pieces B3, B4 and D3, D4 to be folded between the outer wall portion C1 and the inner wall portion C2 are provided between the portions A2, and the inner wall portions A2 and C2 are provided with the outer wall portions A1 and C1. Folds a10, a11, c10, and c11 are formed from both ends a6, a7, c6, and c7 of the connecting portion toward the ends a8, a9, c8, and c9 of the creases a3 and c3, which are flat in the assembled state. The protrusions A4, A5, C4, and C5 are provided on both sides of the inner wall portions A2 and C2, and the protrusions A4, A5, and C4 are provided on both ends of the inner wall portions B2 and D2 at the time of assembly. Engagement holes B5, B6, D5, and D6 in which C5 engages and stops are provided, and the lid constituents include an outer lid top E1, an outer lid front F1, an inner lid front F2, and an inner lid top. It is configured to have a portion E2, and the outer lid top portion E1 is connected to the outer side of the outer wall portion C1 via a crease e1 to become an outer top plate of the lid in an assembled state, and the outer lid front portion. F1 is connected to the outer side of the outer lid top portion E1 via a crease f1 to become the outer front plate of the lid in the assembled state, and the inner wall front portion F2 is crease on the outer side of the outer lid front portion F1. Connected via f2, it becomes the inner front plate of the lid in the assembled state, and the inner lid top E2 is connected to the outer side of the outer lid front F2 via the crease e2, and the lid is connected in the assembled state. Inner heaven It becomes a plate, the inner wall portion C2 is connected to the outer side of the inner wall top portion E2 via a crease c2, and the box bottom contact piece C3 is connected to the outside of the inner wall portion C2 via the crease c3. From the flat state in which the portions B2 and D2 are in contact with the box bottom portion 11, all the outer wall portions A1 to D1 and the inner wall portions A2 to D2 are raised, and the protruding portions A4, A5 and C4, C5 are described, respectively. The box body can be assembled by engaging the engaging holes B5, B6 and D5, D6, and the inner lid top E2 is attached to the outer lid top E1 to form the outer lid front F1. The inner lid front portion F2 is attached to the inner lid front portion F2, and the inner lid front portion F2 is raised from a flat state in which the inner wall front portion F2 is in contact with the inner lid top portion E2, and the lid body can be attached to the box body. Is made possible to assemble.

The invention according to claim 2 is the invention according to claim 1, wherein the box bottom contact pieces A3 and C3 are further attached to the box bottom portion 11.

The invention according to claim 3 is the invention according to claim 1 or 2, further such that the box bottom contact pieces B7 and D7 connected to the outside of the inner wall portions B2 and D2 via the creases b7 and d7 are provided. It was done.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, further such that the folds a2 to d2 are formed of double-line creases.

The invention according to claim 5 is further connected to both sides of the outer lid top portion E1 via creases g1 and h1 in the invention according to any one of claims 1 to 4, and becomes a side plate of the lid in an assembled state. It has lid side portions G1 and H1, and the lid side portions G1 and H1 have lid side portions G1 and H1 from both ends g2 and h2 of a connecting portion between the outer lid top portion E1 and the outer lid front portion F1. Joint pieces G11 and H11 are formed and are partitioned by creases 21 and 22 which are flat in the assembled state toward the middle portion of the outer side of the outer lid, and are connected to both sides of the outer lid front portion F1 via folds f11 and f12. The tongue pieces F11 and F12 to be formed are formed, and the inner side surface of the joint pieces G11 and H11 and the outer side surface of the tongue pieces F11 and F12 are bonded to each other.

(Claim 1)
(a) The inner wall portions A2 to D2 were superposed on each of the outer wall portions A1 to D1 connected to the four sides of the box bottom portion 11, and the inner wall portions B2 and D2 were brought into contact with the box bottom portion 11. In a flat state, the inner wall top E2 and the inner wall front F2 connected to the inner wall C2 are attached to each of the outer lid top E1 and the outer lid front F1 connected to the outer wall C1. At the same time, the front portion F2 of the inner wall is brought into contact with the top portion E2 of the inner wall to be in a flat state.

Therefore, the box bottom portion 11, the outer wall portions A1 to D1 and the inner wall portions A2 to D2, etc., which form the box body, and the outer lid top portion E1, the inner lid top portion E2, and the outer lid which form the lid body are used for one base paper. The front portion F1 and the inner lid front portion F2 and the like can be serialized in one base paper, and can be folded flat at the factory production stage. That is, a packaging box with a lid is formed by connecting a box body and a lid from a single base paper, and can be folded flat during the transportation and storage stages.

At the time of use, all the outer wall portions A1 to D1 and the inner wall portions A2 to D2 are raised from the flat state in which the inner wall portions B2 and D2 are in contact with the box bottom portion 11, and the protruding portions A4, A5 and C4, C5 are engaged with the engaging holes, respectively. The box body can be assembled by engaging with B5, B6 and D5, D6. Further, the lid body can be assembled by raising the inner wall front portion F2 from the flat state in which the inner wall front portion F2 is in contact with the inner wall top portion E2. That is, the packaging box with a lid can be easily assembled at the assembly stage at the time of use without using an adhesive.

Then, the outer lid top portion E1 and the inner lid top portion E2 of the lid body are rotated by using the folds e1 and c2 between the outer wall portion C1 and the inner wall portion C2 in the box body as hinges, whereby the lid body is rotated into the box. It can be attached to the main body so that it can be opened and closed.

(Claim 2)
(b) The box bottom contact pieces A3 and C3 are attached to the box bottom 11 to stabilize the folded state of the packaged box with a lid, and further, the outer wall parts A1 to D1 and the inner wall parts A2 to D2 during use. Stabilization of assembly workability such as raising work or engaging work of protruding parts A4, A5 and C4, C5 into engaging holes B5, B6 and D5, D6, and strengthening assembly strength of packaged box with lid. be able to.

(Claim 3)
(c) By providing the box bottom contact pieces B7 and D7 connected via the creases b7 and d7 on the outside of the inner wall portions B2 and D2, the folded state of the above (b) and the assembly workability at the time of use can be improved. It can be further stabilized and the assembly strength of the packaging box with a lid can be further strengthened.

(Claim 4)
(d) Since the bending of the inner wall portions A2 to D2 connected to the outer wall portions A1 to D1 is via the double line folds a2 to d2, respectively, the assembled outer wall portions A1 to D1 and the inner wall portions A2 to D2 A gap is formed between them. As a result, depths are formed in the engaging holes B5, B6 and D5, D6, the protruding portions A4, A5 and C4, C5 are sufficiently long, and the engaged state of the protruding portions A4, A5 and C4, C5 is improved. It is possible to strengthen the assembly strength of the packaging box with a lid.

(Claim 5)
(e) The lid side is connected to the outer lid top E1 via folds g1 and h1, and further connected to the outer lid front F1 via tongue pieces F11, F12, joint pieces G11, and H11. It has parts G1 and H1. In addition to the outer lid front part F1 and inner lid front part F2 of the lid covering the outside of the outer wall part A1 and the inner wall part A2 of the box body, the lid side parts G1 and H1 on both sides of the lid body are the outer wall part of the box body. By covering the outside of B1, D1 and the inner wall portions B2 and D2, it is possible to ensure the stability of the state of attachment of the lid to the box body.

FIG. 1 is a development view of a base paper of a packaging box with a lid. FIG. 2 is a schematic view showing a folded state of a packaging box with a lid according to an embodiment of the present invention. FIG. 3 is a schematic view showing an initial assembly state of the box body of the packaging box with a lid. FIG. 4 is a schematic view showing an intermediate state of assembly of the box body of the packaging box with a lid and an initial state of assembly of the lid body. FIG. 5 is a schematic view showing an intermediate state of assembling the box body of the packaging box with a lid and an assembling completed state of the lid body. FIG. 6 is a schematic view showing an assembled state of the box body of the packaging box with a lid and an assembled state of the lid body. FIG. 7 is a schematic view showing a closed state of the packaging box with a lid.

As shown in FIGS. 1 to 7, the packaging box 100 with a lid according to an embodiment of the present invention is configured by connecting a box body 10 and a lid 20 from one base paper 101 (blank sheet). As the base paper 101, for example, a cardboard (coated ball) having a thickness of 0.3 to 1.2 mm and the surface of which is covered with a thin cosmetic paper can be adopted. As the base paper 101, a thin plate of semi-hard resin or the like can also be adopted. The base paper 101 is printed on the outer surface (the surface facing the outside of the box 100 in the assembled state) and / or the inner surface (the surface facing the inside of the box 100 in the assembled state) in advance, displaying information about the products to be packaged. It is also possible to adopt the one with.

The box body 10 is composed mainly of a box bottom portion 11, outer wall portions A1 to D1, inner wall portions A2 to D2, and box bottom contact pieces A3 and C3, and is composed of outer wall portions A1 to D1 and inner wall portions A2 to D2. It is designed to form a double side plate.

The lid body 20 is composed of an outer lid top portion E1, an outer lid front portion F1, an inner lid front portion F2, and an inner lid top portion E2 as main elements, and is composed of an outer plate top portion E1 and an inner lid top portion E2. A double top plate is formed, and a double front plate is formed by the outer lid front portion F1 and the inner lid front portion F2. Further, the lid body 20 of the present embodiment also has lid side portions G1 and H1.

The details will be described below. The broken line in the figure indicates a crease, and the solid line other than the outline indicates a cut or a notch.

(Components of Box Body 10) (Fig. 1)
The box bottom 11 constituting the box body 10 has a rectangular shape (rectangle or square) having four sides A to D constituting the bottom of the package box 100 with a lid.

The outer wall portions A1 to D1 are connected to the four sides A to D of the box bottom portion 11 via the creases a1 to d1, respectively, and become the outer wall of the box body 10 in the assembled state.

On the outer sides of the outer wall portions A1, B1 and D1, the inner side walls of the box body 10 are assembled via double-line creases a2, b2 and d2 having a width of 1.5 to 2.5 mm (2 mm in this embodiment). The inner wall portions A2, B2, and D2 are connected to each other.

The lid constituents (outer lid top E1, outer lid front F1, inner lid front F2, inner lid top E2) of the lid 20 are connected to the outer side of the outer wall C1 via the crease e1. It becomes the inner side wall of the box body 10 in the assembled state through the double line crease c2 (double line fold similar to the double line folds a2, b2, d2) on the outside of the inner lid top portion E2 of the lid constituent part. The inner wall portion C2 is connected.

Side plate connecting pieces K1 to K4 are connected to the side ends of the adjacent outer wall portions A1 to D1 via creases 12 and 13. The side plate connecting pieces K1 to K4 are provided with inner creases 14 having corners a to d of the box bottom 11 as base ends, and in the assembled state, the side plate connecting pieces K1 to K4 are formed by the outer wall portion A1 and the inner wall portion A2. It is designed to be folded between the space and between the outer wall portion C1 and the inner wall portion C2.

The bonded portions K11 to K41 connected to the outer wall portions A1 and C1 with the inner crease 14 of each side plate connecting piece K1 to K4 as a boundary are formed on the inner wall portion by the glue applied to the glue application points P3 to P6 described later. It is supposed to be attached to the inner surface of A1 and C1. Therefore, the glue applied to the bonded portions K11 to K41 extends beyond the inner crease 14 to the side of the connecting portions K12 to K42 connected to the outer wall portions B1 and D1 of the side plate connecting pieces K1 to K4. A U-shaped cut 15 is formed in each of the connecting portions K12 to K42 so that both ends of the U-shaped cut 15 are arranged at two points in the middle of the inner fold 14. The U-shaped piece 16 formed by the U-shaped cut 15 is connected via the inner crease 14 so as to form the same plane as the bonded portions K11 to K41 in the assembled state of the box 100, thereby preventing the above-mentioned glue from sticking out. I am trying to.

The inner wall portions A2 and C2 have a rectangular shape, are connected to the outer side of the outer wall portions A1 and C1 via double line folds a2 and c2, and are connected to the outer central portion via the folds a3 and c3. , C3 are connected. The width of the inner wall portions A2 and C2 is slightly narrower than that of the sides A and C.

Further, on the inner wall portions A2 and C2, the creases a10 from both end portions a6, a7 and c6, c7 of the connecting portions with the outer wall portions A1 and C1 toward the end portions a8, a9 and c8, c9 of the creases a3 and c3. a11, c10, and c11 are formed. The folds a10, a11 and c10, c11 have an oblique shape formed symmetrically, and are flat in the assembled state.

Further, small square-shaped protrusions A4, A5 and C4, C5 are provided on both outer side portions of the inner wall portions A2 and C2, respectively, and the protrusion lengths of the protrusions A4, A5 and C4, C5 are 1 to 4 of the paper thickness. It is about double. Within this protrusion length range, the protrusions A4, A5 and C4, C5 can be easily and reliably engaged with the engagement holes B5, B6, D5, D6.

The inner wall portions B2 and D2 are rectangular, and are connected to the outside of the outer wall portions B1 and D1 via double line folds b2 and d2, and creases b3, b4 and d3 and d4 are formed on both sides of the inner wall portions B2 and D2. The folding pieces B3, B4 and D3, D4 are connected via the folding pieces B3, B4 and D3, D4 between the outer wall portion A1 and the inner wall portion A2, and the outer wall portion C1 and the inner wall portion C2 in the assembled state. Folded in between.

The outer wall portions A1 to D1 are connected to the four sides A to D of the box bottom portion 11 via the folds a1 to d1, and the inner wall portions A2 to D2 are connected to the outer wall portions A1 to D1 via the double line folds a2 to d2. Therefore, a gap is formed between the folded outer wall portions A1 to D1 and the inner wall portions A2 to D2. Engagement holes B5, B6, D5, and D6 are formed at both ends of the inner wall portions B2 and D2 so that the protruding portions A4, A5, C4, and C5 are engaged and stopped at the time of assembly. In B6, D5, and D6, cuts b5, b6, d5, and d6 are formed from the outer ends of the inner wall portions B2 and D2 with a width of about the paper thickness of the protruding portions A4, A5, C4, and C5, and their ends. Short cuts b51, b61 and d51, d61 are formed in which the portions are directed toward the creases b3, d3.

The box bottom contact pieces A3 and C3 are connected to the outside of the inner wall portions A2 and C2 via creases a3 and c3 so as to come into contact with the box bottom portion 11 at the time of assembly. The box bottom contact pieces A3 and C3 may be attached to the box bottom portion 11.

Further, the box bottom contact pieces B7 and D7 are connected to the outer side of the inner wall portions B2 and D2 via the creases d7 and d7 so as to come into contact with the box bottom portion 11 at the time of assembly. The box bottom contact pieces B7 and D7 may be attached to the box bottom portion 11.

(Components of Lid 20) (Fig. 1)
The outer lid top portion E1 constituting the lid body 20 is connected to the outer side of the outer wall portion C1 of the box body 10 via the crease e1, and becomes the outer top plate of the lid body 20 in the assembled state.

The outer lid front portion F1 is connected to the outer side of the outer lid top portion E1 via a crease f1, and becomes the outer front plate of the lid 20 in the assembled state.

The inner lid front portion F2 is connected to the outer side of the outer lid front portion F1 via a crease f2, and becomes an inner front plate of the lid 20 in the assembled state.

The inner lid top portion E2 is connected to the outer side of the inner lid front portion F2 via the crease e2, and becomes the inner top plate of the lid body 20 in the assembled state.

Then, the inner wall portion C2 constituting the box body 10 is connected to the outer side of the inner lid top portion E2 forming the lid body 20 via the double line fold c2, and the outer central portion of the inner wall portion C2 is connected. The box bottom contact piece C3 is connected to the crease c3 via the crease c3.

Further, the lid body 20 has lid side portions G1 and H1 which are connected to both sides of the outer lid top portion E1 via folds g1 and h1 and serve as side plates of the lid body 20 in the assembled state.

The lid side portions G1 and H1 have inner creases from both ends g2 and h2 of the connecting portion between the outer lid top portion E1 and the outer lid front portion F1 toward the middle portion of the outer side of the lid side portions G1 and H1. 21, 22 are formed. A part of each lid side portion G1 and H1 near the outer lid front portion F1 becomes a joint piece G11 and H11 partitioned by the inner folds 21 and 22 thereof.

Tongue pieces F11 and F12 connected via folds f11 and f12 are formed on both sides of the outer lid front portion F1.

Then, the inner side surface of each of the joint pieces G11 and H11 and the outer side surface of each of the tongue pieces F11 and F12 are bonded to each other.

(Primary assembly procedure at the factory for packaging box 100 with lid) (Fig. 2)
An example of a procedure for primary assembly at a factory of a packaging box 100 with a lid (a concatenation of a box body 10 and a lid 20) having the above configuration in the unfolded state of one base paper 101 will be described.

(1) After the entire base paper 101 constituting the packaging box 100 with a lid is in the unfolded state, the inner wall portions B2 and D2 on which the bottom contact pieces B7 and D7 of each box are provided on the outside are double-wired. It is bent 180 degrees inward through the creases b2 and d2 and overlapped with the outer wall portions B1 and D1. At this time, the bending lines of the inner wall portions B2 and D2 with respect to the outer wall portions B1 and D1 are in contact with the outer wall portions B1 and D1 of the two lines forming the double lines of the double line folds b2 and d2. The box bottom contact pieces B7 and D7 are pulled toward the box bottom portion 11 so as to be the line on the side of the box.

Then, the box bottom contact pieces B7 and D7 having the glue application points P1 and P2 are passed through the glue previously applied to the glue application points P1 and P2 defined on the inner surfaces of the box bottom contact pieces B7 and D7. It is attached to the glue points R1 and R2 of the corresponding box bottom 11.

The folding pieces B3, B4, D3, and D4 provided on both sides of the inner wall portions B2 and D2 overlap with the side plate connecting pieces K1 to K4.

(2) Next, the outer wall portions B1 and D1 on which the side plate connecting pieces K1 to K4 are provided on both sides are accompanied by the inner wall portions B2 and D2 that have already been superposed in (1) above. , Bend 180 degrees inward through the creases b1 and d1 and stack on the bottom of the box 11. The inner wall portions B2 and D2 are bent 180 degrees with respect to the box bottom contact pieces B7 and D7 bonded to the box bottom 11 in the above (1) via the creases b7 and d7, and the box bottom contact pieces B7 are bent. , D7 overlaps.

At this time, the side plate connecting pieces K1 to K4 provided on both sides of the outer wall portions B1 and D1 are bent inward by 180 degrees via the crease 12 and overlap the outer wall portions A1 and C1.

Then, each side plate connecting piece having the glue application points P3 to P6 is passed through the glue previously applied to the glue application points P3 to P6 defined on the inner side surfaces of the bonded portions K11 to K41 of the side plate connecting pieces K1 to K4. K11 to K14 are bonded to the gluing points R3 to R6 of the corresponding outer wall portions A1 and C1.

(3) Next, the inner wall portion A2 provided with the box bottom connecting piece A3 on the outside is bent 180 degrees inward through the double line fold a2 and overlapped with the outer wall portion A1. At this time, the bending line of the inner wall portion A2 with respect to the outer wall portion A1 is the line on the side in contact with the outer wall portion A1 of the two lines forming the double line of the double line fold a2. The contact piece A3 is pulled toward the bottom 11 of the box.

Then, the box bottom contact piece A3 having the glue application point P7 is attached to the glue point R7 of the corresponding box bottom 11 via the glue previously applied to the glue application point P7 defined on the inner surface of the box bottom contact piece A3. match.

(4) Next, the inner wall portion C2, the inner lid top portion E2, and the inner lid front portion F2 on which the box bottom contact piece C3 is provided on the outside are bent 180 degrees inward through the crease f2, and the outer wall portion C1 , Overlap on the outer lid top E1 and outer lid front F1.

Then, the box bottom having the glue application points P8 to P14 is passed through the glue previously applied to the glue application points P8 to P14 defined on the inner side surfaces of the box bottom contact piece C3, the inner lid top portion E2, and the inner lid front portion F2. The abutting piece C3, the inner lid top E2, and the inner lid front F2 are attached to the corresponding box bottom 11, the outer lid top E1, and the outer lid front F1 glue points R8 to R14, respectively.

(5) Next, the lid side portions G1 and H1 provided on both sides of the outer lid top portion E1 are bent 180 degrees inward through the folds g1 and h1 and overlapped with the outer lid top portion E1. Subsequently, the joint pieces G11 and H11, which are a part of the lid side portions G1 and H1, are bent 180 degrees outward through the inner folds 21 and 22, and the other part of the lid side portions G1 and H1 is bent. Stack on the outer side.

Then, the tongue pieces F11 and F12 provided on both sides of the outer lid front portion F1 are bent inward by 180 degrees via the folds f11 and f12, and are in a state of overlapping with the outer lid front portion F1 in the above (4). Overlay on the front part F2 of the inner lid.

Further, the outer lid front portion F1 and the inner lid front portion F2, which are in the overlapping state in the above (4), are placed 180 inward through the creases f1 and e2 between the outer lid top portion E1 and the inner lid top portion E2. While bending the lid, the outer surfaces of the tongue pieces F11 and F12 on both sides of the outer lid front part F1 are bent to the outside of a part of the lid side parts G1 and H1 on both sides of the outer lid top E1 to the outside world. It is overlapped on the inner surface of each of the joining pieces G11 and H11 facing each other. At the same time, they face the outside world of the joint pieces G11 and G12 having the glue application points P15 and P16 via the glue previously applied to the glue application points P15 and P16 defined on the inner side surfaces of the joint pieces G11 and H11. The outer surfaces of the corresponding tongue pieces F11 and F12 are overlapped and bonded to each of the inner surfaces.

FIG. 2 shows a packaging box 100 with a lid that is folded flat according to the above (1) to (5). The packaging box 100 with a lid is thus held flat and is not bulky, facilitating transportation and storage.

(Assembly procedure when using the packaging box 100 with a lid) (FIGS. 3 to 7)
(1) In the packaged box 100 with a lid in the folded state shown in FIG. 2, the outer wall portion B1 and the inner wall portion B2 and the outer wall portion D1 and the inner wall portion D2 which are opposed to each other and are in an overlapping state are shown in FIG. When gradually raised in the direction of arrow X, the side plate connecting pieces K1 to K4 folded between the outer wall portions A1 and C1 and the inner wall portions A2 and C2 are displaced in conjunction with the outer wall portions B1 and D1, and further. The outer wall portion A1 and the inner wall portion A2, and the outer wall portion C1 and the inner wall portion C2 that are interlocked with the displacement of the side plate connecting pieces K1 to K4 rise up as shown in FIGS. 3 to 5. At this time, the diagonal creases a10, a11, c10, and c11 formed symmetrically on the inner wall portions A2 and C2 cause the side portions A21, A22, C21, and C22 of the inner wall portions A2 and C2 to move upward as shown in FIG. In this state, the outer wall portions A1 and C1 are erected at right angles to the box bottom portion 11. As a result, the side plate connecting pieces K1 to K4 and the folding pieces B3, B4, D3, and D4 are folded between the outer wall portions A1 and C1 and the inner wall portions A2 and C2.

(2) After (1) above, sandwich the outer wall portions A1 and C1 with both palms and push them up until they stand up. Here, when the folding pieces B3, B4, D3, and D4 are bent at right angles to the inner wall portions B2 and D2, the protrusions formed by the cuts b5, b6, d5, d6 and the short cuts b51, b61, d51, d61. The short piece also bends at the same time as the folding pieces B3, B4, D3, and D4, and engaging holes B5, B6, D5, and D6 are formed in this portion of the inner wall portions B2 and D2.

(3) With the box body 10 of the packaged box 100 with a lid generally assembled according to (2) above, the hand pushing the outer wall portions A1 and D1 is attached to the front inner wall portions A2 and C2 with the thumb as it is. The projected portions A4 and C5 of the pushed and bent side portions A21 and C22 are engaged with the engaging holes D6 and D5 of the inner wall portion D2. Next, the protruding portions A5 and C4 of the pushed and bent side portions A21 and C22 on the opposite sides can be engaged with the engaging holes B5 and B6 of the inner wall portion B2 to form the box body 10 as shown in FIG. ..

Here, since the outer wall portions B1, D1 and the inner wall portions B2, D2 are bent via the double line folds b2, d2, there is a gap between the outer wall portions B1, D1 and the inner wall portions B2, D2. As a result, the depths of the engaging holes B5, B6, D5, and D6 are sufficiently deeper than the paper thickness, and the corresponding protrusions A4, A5, C4, and C5 are provided with sufficient depth to engage. Further, the lid body 10 of the package box 100 with a lid once assembled can be made flat by disengaging the protruding portions A4, A5, C4 and C5.

(4) In the packaged box 100 with a lid in the folded state shown in FIG. 2, the outer lid front part F1 and the inner lid front part F2 in the overlapping state are raised 90 degrees in the arrow Y direction as shown in FIG. And the lid side portions G1 and H1 connected to both sides of the outer lid front portion F1 via the tongue pieces F11 and F12 and the joint pieces G11 and H11 are removed in conjunction with the displacement of the outer lid front portion F1. Get up 90 degrees on both sides of the lid E1. As a result, on the front side and both sides of the outer lid top portion E1 and the inner lid top portion E2 in the overlapping state, both sides of the front side plate consisting of the outer lid front portion F1 and the inner lid front portion F2 and the lid side portions G1 and H1. A lid 20 can be formed in which the plate stands up as shown in FIGS. 5 and 6. As shown in FIG. 7, the box 100 that can be used by attaching the lid 20 to the box body 10 so as to be openable and closable is assembled.

Therefore, according to the packaging box 100 with a lid (box body 10 and lid 20) of the present embodiment, the following effects are exhibited.

(a) The inner wall portions A2 to D2 were superposed on each of the outer wall portions A1 to D1 connected to the four sides of the box bottom portion 11, and the inner wall portions B2 and D2 were brought into contact with the box bottom portion 11. In a flat state, the inner wall top E2 and the inner wall front F2 connected to the inner wall C2 are attached to each of the outer lid top E1 and the outer lid front F1 connected to the outer wall C1. At the same time, the front portion F2 of the inner wall is brought into contact with the top portion E2 of the inner wall to be in a flat state.

Therefore, the box bottom portion 11, the outer wall portions A1 to D1 and the inner wall portions A2 to D2, etc., which form the box body 10, and the outer lid top portion E1 and the inner lid top portion E2, which form the lid body 20, are made of one base paper 101. , The outer lid front part F1 and the inner lid front part F2, etc. can be serialized in one base paper 101, and can be folded flat at the factory production stage. That is, a packaging box 100 with a lid is formed by connecting the box body 10 and the lid 20 from one base paper 101, and can be folded flat during the transportation and storage stages.

At the time of use, all the outer wall portions A1 to D1 and the inner wall portions A2 to D2 are raised from the flat state in which the inner wall portions B2 and D2 are in contact with the box bottom portion 11, and the protruding portions A4, A5 and C4, C5 are engaged with the engaging holes, respectively. The box body 10 can be assembled by engaging with B5, B6 and D5, D6. Further, the lid 20 can be assembled by raising the inner wall front portion F2 from the flat state in which the inner wall front portion F2 is in contact with the inner wall top portion E2. That is, the packaging box 100 with a lid can be easily assembled at the assembly stage at the time of use without using an adhesive.

Then, the outer lid top portion E1 and the inner lid top portion E2 of the lid body 20 are rotated using the folds e1 and c2 between the outer wall portion C1 and the inner wall portion C2 of the box body 10 as hinges, whereby the lid body 20 is used. Can be attached to the box body 10 so as to be openable and closable.

(b) The box bottom contact pieces A3 and C3 are attached to the box bottom portion 11 to stabilize the folded state of the package box 100 with a lid, and further, the outer wall portions A1 to D1 and the inner wall portions A2 to A2 to be used. Stabilization of assembly workability such as raising work of D2 or engaging work of engaging holes B5, B6 and D5, D6 of protruding parts A4, A5 and C4, C5, strengthening of assembly strength of packaging box 100 with lid Can be planned.

(c) By providing the box bottom contact pieces B7 and D7 connected via the creases b7 and d7 on the outside of the inner wall portions B2 and D2, the folded state of the above (b) and the assembly workability at the time of use can be improved. It can be further stabilized and the assembly strength of the packaging box 100 with a lid can be further strengthened.

(d) Since the bending of the inner wall portions A2 to D2 connected to the outer wall portions A1 to D1 is via the double line folds a2 to d2, respectively, the assembled outer wall portions A1 to D1 and the inner wall portions A2 to D2 A gap is formed between them. As a result, the engaging holes B5, B6 and D5. Depth is formed in D6, the protrusions A4, A5 and C4, C5 are sufficiently long, the engagement state of the protrusions A4, A5 and C4, C5 is improved, and the assembly strength of the package box 100 with a lid is strengthened. Can be planned.

(e) A lid in which the lid 20 is connected to the outer lid top E1 via folds g1 and h1, and further connected to the outer lid front F1 via tongue pieces F11, F12, joint pieces G11, and H11. It has side portions G1 and H1. In addition to the outer lid front portion F1 and inner lid front portion F2 of the lid 20 covering the outside of the outer wall portion A1 and the inner wall portion A2 of the box body 10, the lid side portions G1 and H1 on both sides of the lid body 20 cover the box body. By covering the outer wall portions B1 and D1 and the inner wall portions B2 and D2 of the box 10, it is possible to ensure the stability of the adhered state of the lid 20 to the box body 10.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like within a range not deviating from the gist of the present invention. Included in the present invention.

According to the present invention, a wrapping box with a lid is formed by connecting a box body and a lid from a single base paper, and the wrapping with a lid can be folded flat during the transportation and storage stages and easily assembled during use. Boxes can be provided.

10 Box body 11 Box bottom 12, 13, 21, 22, a1 to h1 Fold 14 Inner crease 20 Lid 100 Lid packaging box 101 Base paper A to D 4 sides A1 to D1 of box bottom Outer wall A2 to D2 Inner wall A3 , C3 Box bottom contact piece A4, A5, C4, C5 Protruding part B3, B4, D3, D4 Folding piece B5, B6, D5, D6 Engagement hole B7, D7 Box bottom contact piece E1 Outer lid Top E2 Inner lid Part F1 Outer lid front part F2 Inner lid front part F11, F12 Tongue piece G1, H1 Lid side part G11, H11 Joint piece P1 to P4 Side plate connecting piece a to d Corner part a6, a7, a8, a9, g2, h2 Department

Claims (5)

It is a packaging box with a lid in which the lid is connected to the box body.
Square box bottom 11 and
Outer wall portions A1 to D1 which are connected to the four sides A to D of the box bottom 11 via creases a1 to d1 and become the outer wall of the box body in the assembled state.
The inner wall portions A2, B2, and D2, which are connected to the outer sides of the outer wall portions A1, B1, and D1 via creases a2, b2, and d2, and serve as the inner side wall of the box body in the assembled state,
The inner wall portion C2, which is connected to the lid constituent portion connected to the outer side of the outer wall portion C1 via the crease c2 and becomes the inner side wall of the box body in the assembled state,
Inner creases 14 which are connected to the side ends of the adjacent outer wall portions A1 to D1 via creases 12 and 13 and whose base ends are corners a to d of the box bottom portion 11 are provided, respectively. Side plate connecting pieces K1 to K4 that are folded between the outer wall portion A1 and the inner wall portion A2, and between the outer wall portion C1 and the inner wall portion C2.
Box bottom contact pieces A3 and C3 connected to the outside of the inner wall portions A2 and C2 via creases a3 and c3.
It is connected to both sides of the inner wall portions B2 and D2 via creases b3, b4 and d3, d4, respectively, and in the assembled state, between the outer wall portion A1 and the inner wall portion A2, and between the outer wall portion C1 and the inner wall portion C2. With folding pieces B3, B4 and D3, D4 to be folded in between,
The inner wall portions A2 and C2 are assembled from both end portions a6, a7 and c6, c7 of the connecting portions with the outer wall portions A1 and C1 toward the end portions a8, a9 and c8, c9 of the creases a3 and c3. In the state, creases a10, a11 and c10, c11 that are flat are formed.
Both sides of the inner wall portions A2 and C2 are provided with protrusions A4, A5 and C4, C5, respectively, and the protrusions A4, A5 and C4, C5 are provided at both ends of the inner wall portions B2, D2 at the time of assembly. Engagement holes B5, B6 and D5, D6 are provided to engage and stop, respectively.
Further, the lid constituent portion is configured to include an outer lid top portion E1, an outer lid front portion F1, an inner lid front portion F2, and an inner lid top portion E2.
The outer lid top portion E1 is connected to the outer side of the outer wall portion C1 via a crease e1, and becomes an outer top plate of the lid body in the assembled state.
The outer lid front portion F1 is connected to the outer side of the outer lid top portion E1 via a crease f1, and becomes an outer front plate of the lid body in the assembled state.
The inner wall front portion F2 is connected to the outer side of the outer lid front portion F1 via a crease f2, and becomes an inner front plate of the lid body in the assembled state.
The inner lid top portion E2 is connected to the outer side of the outer lid front portion F2 via a crease e2, and becomes an inner top plate of the lid body in the assembled state.
The inner wall portion C2 is connected to the outer side of the inner wall top portion E2 via the crease c2, and the box bottom contact piece C3 is connected to the outside of the inner wall portion C2 via the crease c3.
From the flat state where the inner wall portions B2 and D2 are in contact with the box bottom portion 11, all the outer wall portions A1 to D1 and the inner wall portions A2 to D2 are raised, and the protruding portions A4, A5 and C4, C5 are raised. The box body can be assembled by engaging the engaging holes B5, B6 and D5, D6, respectively.
The inner lid top portion E2 was attached to the outer lid top portion E1, the inner lid front portion F2 was attached to the outer lid front portion F1, and the inner wall front portion F2 was brought into contact with the inner lid top portion E2. A packaging box with a lid that raises the inner lid front portion F2 from a flat state so that the lid body that can be attached to the box body can be assembled. The packaging box with a lid according to claim 1, wherein the box bottom contact pieces A3 and C3 are attached to the box bottom portion 11. The packaging box with a lid according to claim 1 or 2, wherein the box bottom contact pieces B7 and D7 are provided on the outside of the inner wall portions B2 and D2 via creases b7 and d7. The packaging box with a lid according to any one of claims 1 to 3, wherein the folds a2 to d2 are double line folds. The lid side portions G1 and H1 which are connected to both sides of the outer lid top portion E1 via creases g1 and h1 and serve as side plates of the lid body in the assembled state are provided.
The lid side portions G1 and H1 are assembled from both end portions g2 and h2 of the connecting portion between the outer lid top portion E1 and the outer lid front portion F1 toward the intermediate portion of the outer side of the lid side portions G1 and H1. In the state, the joint pieces G11 and H11 partitioned by the folds 21 and 22 which are flat are formed.
Tongue pieces F11 and F12 connected via folds f11 and f12 are formed on both sides of the outer lid front portion F1.
The packaging box with a lid according to any one of claims 1 to 4, wherein the inner side surface of the joint pieces G11 and H11 and the outer side surface of the tongue pieces F11 and F12 are bonded to each other.

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