JP3010250U - Packaging box - Google Patents

Abstract

(57) [Abstract] [Purpose] The locking step can reliably prevent the side wall from moving outward (inward), and can reliably and stably lock the side wall upper end surface of the box body. It provides an economical packaging box that does not require a gluing part, allows efficient assembly work, has a simple structure, is suitable for mass production, has excellent strength, rigidity, and durability. [Structure] A locking step portion A1 protruding from the inner surface portions of the side walls of the lid A facing each other and locked to the upper end surface of the side wall of the box body B is provided.
Locking pieces 10 and 11 arranged substantially obliquely downward, and locking piece 1
The lower edge is connected to the leading edge of 0 and 11, and the upper edge is connected to the top plate 1.
And the supporting pieces 12 and 13 which are located at the corners of the side wall and are arranged in an oblique state, the folding pieces 20 and 21 having the locking notches 24 and 25 are provided, and the locking notches 24 and 25 are It is locked so as to be in close contact with the locking step A1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, when the lid is fitted into the upper opening of the box body, the locking piece having the inner surface of the side plate of the lid protruding from the crook is locked to the upper end surface of the side wall of the box body. Related to the packaging box.

[0002]

[Prior art]

 Conventionally, as this type of packaging box, for example, a packaging box as described in Japanese Utility Model Publication No. 3-15327 has been proposed. This packaging box comprises a box body whose upper edge has a side wall lower than the contents, and a lid fitted on the box body. The packaging box includes front, rear, left and right sides of a bottom plate of the lid. The outer plate, the adhesive part, the step part, the inner plate and the adhesive part are successively connected to at least one of the sides through a bending line, and these are bent in a predetermined direction through the folding curve. The folding curve is configured so as to be in contact with an upper edge portion of a predetermined side wall of the box body. Moreover, the step portion is parallel to the bottom plate, and the inner plate is parallel to the outer plate.

[0003]

[Problems to be solved by the device]

 However, in the packaging box as described above, a part of the outer plate, the attaching part, the step part, and the inner plate have a substantially rectangular link shape in cross section, and this part serves as a knuckle. It was easy to deform through the curved line, and there were problems such as lack of overall rigidity and strength. However, there were many problems such as the many parts to be attached and the assembly work being troublesome. Although the step is parallel to the bottom plate, when a load is applied to the lid from above and the inner plate is deformed so that it flexes, the inner plate of the step moves closer to the bottom plate. Then, due to the load applied to the lid from above, the stepped portion slides along the upper edge of the box body toward the outside of the outer plate, and the outer plate is placed on the outer ring. There was a risk that it would expand slightly.

[0004]

[Means for Solving the Problems] Therefore, the present invention has been devised so as to solve the above-mentioned difficulties and the like. Therefore, in the packaging box according to claim 1, the lid A Is a packaging box in which projecting locking step portions A1 to be locked to the side wall upper end surfaces of the box body B are provided on the inner surface portions of the opposing side walls of the box body B, and the locking step portions A1 are separated from the side walls. In accordance with the above, the locking pieces 10 and 11 arranged in a substantially oblique downward direction so as to be gradually separated from the top plate 1, and the lower end edges thereof are connected to the leading end edges of the locking pieces 10 and 11, and the upper end edges thereof are The top plate 1 and the supporting pieces 12 and 13 arranged in an inclined state so as to be positioned at the corners of the side wall. The side wall adjacent to the side wall provided with the locking step A1 has a locking notch. The folding pieces 20 and 21 having the portions 24 and 25 are provided, and the locking notches 24 and 25 are in close contact with the locking step A1. A manner employing the means to configured to be locked.

Further, in the packaging box according to the second aspect, locking step portions A1 that are locked to the upper end surfaces of the side walls of the box body B are projected from the inner surface portions of the side walls of the lid body A that face each other. In the packaging box provided, the lid A is provided with a substantially rectangular top plate 1 and an outer edge of the top plate 1 connected to each other via fold lines 40, 41, 42, 43, respectively. A substantially rectangular front side plate 2, a rear side plate 3, a right side plate 4, a left side plate 5, and a substantially elongated rectangular shape continuously connected to the lower end edges of the front and rear side plates 2 and 3 via fold lines 44 and 45, respectively. Of the folding pieces 6 and 7, the locking pieces 10 and 11 of substantially elongated rectangular shape, which are continuously provided on the upper edges of the folding pieces 6 and 7 via fold lines 60 and 61, respectively, and the locking pieces 10 and Supporting pieces 12 and 13 each having a substantially elongated rectangular shape continuously connected to the leading edge of 11 via fold lines 62 and 63, and connected to the upper edges of the support pieces 12 and 13 via fold lines 64 and 65, respectively. The substantially elongated rectangular bent pieces 14 and 15 and the substantially rectangular folded pieces 20 and 21 continuously connected to the lower end edges of the left and right side plates 4 and 5 via fold lines 46 and 47, respectively. The folding pieces 20 and 21 are provided with bending pieces 22 and 23, which are substantially rectangular in shape and are continuously arranged on the upper edge of the folding pieces 20 and 21, respectively, through fold lines 66 and 67. And the support pieces 12 and 13, the locking pieces 10 and 11 are arranged in a substantially oblique downward direction so as to be gradually separated from the top plate 1 as the distance from the side wall is increased. The folding pieces 20, 21 which are arranged in an inclined state such that they are located at the corners between the top plate 1 and the side wall and which are continuously provided on the left and right side plates 4, 5 are closely attached to the locking step A1. The means for forming the locking notches 24 and 25 to be locked is adopted.

[0006]

[Action]

 In the packaging box according to the first aspect, the locking step portions A1 are provided so as to project from the inner surface portions of the side walls of the lid A facing each other, and moreover, on the upper end surfaces of the side walls of the box body B. Be locked. Then, the locking pieces 10 and 11 of the locking step portion A1 are arranged in a substantially oblique downward direction so as to gradually separate from the top plate 1 as the distance from the side wall increases. Further, the lower end edges of the support pieces 12 and 13 of the locking step portion A1 are connected to the leading edge edges of the locking pieces 10 and 11, and the upper end edges thereof are located at the corners between the top plate 1 and the side wall. It is arranged in such an oblique state. That is, a part of the side wall, the locking pieces 10 and 11, and the support pieces 12 and 13 have a substantially triangular frame-shaped cross section, and this portion is hard to be deformed, and overall rigidity and strength are increased. . Then, folding pieces 20, 21 having locking cutouts 24, 25 are provided on the side wall adjacent to the side wall provided with the locking stepped portion A1, and the locking cutouts 24, 25 are locked. The locking step portion A1 is locked so as to be in close contact with the step portion A1 and prevents the locking step portion A1 from trying to move to the outside of the side wall.

Further, in the packaging box according to the second aspect, the locking step portions A1 are provided so as to protrude from the inner surface portions of the side walls of the lid A which face each other, and on the side walls of the box body B. It is locked to the end face. The lid A includes a top plate 1, a front plate 2, a rear plate 3, a right plate 4, a left plate 5, folding pieces 6 and 7, locking pieces 10 and 11, supporting pieces 12 and 13, and bending pieces 14. , 15, folding pieces 20 and 21, and bending pieces 22 and 23, the locking step portion A1 is composed of the locking pieces 10 and 11 and the supporting pieces 12 and 13, and the locking step portion A1. The locking pieces 10 and 11 are arranged in a substantially oblique downward direction so as to be gradually separated from the top plate 1 as they are separated from the side wall. Further, the lower end edges of the support pieces 12 and 13 of the locking step A1 are connected to the leading edges of the locking pieces 10 and 11, and the upper edge thereof is located at a corner between the top plate 1 and the side wall. It is arranged in a slanted state. That is, a part of the side wall, the locking pieces 10 and 11, and the support pieces 12 and 13 have a substantially triangular cross section, and this portion is hard to be deformed, so that the rigidity and strength of the whole are increased. Become. Then, folding pieces 20, 21 having locking notches 24, 25 are provided on the side wall adjacent to the side wall provided with the locking step A1, and the locking notches 24, 25 are provided with the locking steps. The locking step portion A1 is locked so as to be in close contact with the portion A1 and prevents the locking step portion A1 from trying to move to the outside of the side wall.

[0008]

【Example】

 Hereinafter, the present invention will be described based on illustrated examples. The packaging box of the present invention is composed of a paper material, a synthetic resin material, or other sheet-like material as appropriate, and has a box body B having an open upper portion capable of accommodating a storage item, and this box. It is composed of a lid A which is fitted in an upper opening portion of a main body B. Then, locking step portions A1 to be locked to the upper end surfaces of the side walls of the box body B are provided on the inner surface portions of the opposite side walls of the lid A, respectively, and the locking step portions A1 are provided. , The locking pieces 10 and 11 arranged in a substantially oblique downward direction so as to gradually separate from the top plate 1 as they move away from the side wall, and the lower end edges thereof are connected to the leading edges of the locking pieces 10 and 11. The upper edge is composed of the top plate 1 and the support pieces 12 and 13 which are arranged in an inclined state so as to be positioned at the corner of the side wall, and the side wall adjacent to the side wall provided with the locking step A1 is The folding pieces 20 and 21 having the locking cutouts 24 and 25 are provided, and the locking cutouts 24 and 25 are configured to be locked in close contact with the locking step A1. is there.

Further, the lid A has a substantially rectangular top plate 1 and a substantially rectangular front plate continuously provided on the outer edge of the top plate 1 via fold lines 40, 41, 42, 43, respectively. Side plate 2, rear side plate 3, right side plate 4, left side plate 5, and substantially elongated rectangular folding pieces 6 and 7 connected to the lower end edges of the front and rear side plates 2 and 3 via fold lines 44 and 45, respectively. Locking pieces 10 and 11 each having a substantially elongated rectangular shape continuously provided on the upper edges of the folding pieces 6 and 7 via folding lines 60 and 61, and folding lines 62 and 63 on the leading edges of the locking pieces 10 and 11. Support strips 12, 13 which are respectively provided in series via a pair of substantially rectangular strips, and bent strips which are provided in a top and bottom direction of the support strips 12, 13 through fold lines 64, 65, respectively. 14, 15 and folding pieces 20, 21 each having a substantially rectangular shape continuously provided on the lower end edges of the left and right side plates 4, 5 via folding lines 46, 47, respectively. 1. The substantially rectangular bending pieces 22 and 23 continuously provided on the upper edge of 1 via fold lines 66 and 67, and the fold lines 48 and 52 on the right end edge of the front side plate 2 and the front end edge of the right side plate 4. The folding piece 8 connected through the folding plate 8, the left edge of the front plate 2 and the front edge of the left plate 5 through the folding lines 49 and 54, and the right end of the rear plate 3. Folding piece 8 connected to the edge and the rear edge of the right side plate 4 via fold lines 50 and 53, and the left edge of the rear side plate 3 and the rear edge of the left side plate 5 via fold lines 51 and 55. And the insert piece 16 connected to the left and right side edges of the folded piece 6 via a fold line, and the left and right side edges of the folded piece 7 connected to the left and right side edges via a fold line. The insert piece 17 is provided, the insert piece 18 is continuously provided on the left and right side edges of the folded piece 12 via a fold line, and the insert piece 18 is provided continuously on the left and right side edges of the folded piece 13 via a fold line. Such as the plug piece 19 It made. Incidentally, reference numeral 56 in the drawing denotes a folding line provided on the folding piece 8.

That is, in the packaging box of the present invention, the locking step portion A1 is a part of the side wall, the locking pieces 10 and 11, and the supporting pieces 12 and 13, and has a substantially triangular frame-shaped cross section. The structure is such that it is difficult to deform and the overall rigidity and strength are increased. Moreover, folding pieces 20, 21 having locking cutouts 24, 25 are provided on the side wall adjacent to the side wall provided with the locking stepped portion A1, and the locking cutouts 24, 25 are By locking the locking step portion A1 so as to be in close contact with the locking step portion A1, it is possible to prevent the locking step portion A1 from attempting to move outward (inward) of the side wall.

The specific configuration, shape, dimensions, and material of the lid A, the specific configuration, shape, dimensions, and material of the box body B, top plate 1, front side plate 2, rear side plate 3, right side plate 4, left side Plate 5, folding piece 6, folding piece 7, folding piece 8, locking piece 10, locking piece 11, supporting piece 12, supporting piece 13, bending piece 14, bending piece 15, insertion piece 16, difference Specific shapes and dimensions of the insert piece 17, the insert piece 18, the insert piece 19, the folded piece 20, the folded piece 21, the bent piece 22, and the bent piece 23, and the specific shape and dimensions of the locking notch 24. The arrangement position and the like are not limited to those shown in the drawings and can be set freely as appropriate.

[0012]

[Effect of device]

 Therefore, the packaging box according to claim 1 is a packaging box in which locking step portions A1 that are locked to the upper end surfaces of the side walls of the box body B are provided on the inner surface portions of the side walls of the lid A that oppose each other. In the box, the locking step portions A1 are arranged in a substantially oblique downward direction so that the locking step portions A1 gradually move away from the top plate 1 as they move away from the side wall, and the leading edges of the locking pieces 10 and 11. The lower end edge is continuously provided, and the upper end edge is composed of the support pieces 12 and 13 which are arranged in an inclined state so as to be located at a corner between the top plate 1 and the side wall. Folding pieces 20 and 21 having locking notches 24 and 25 are provided on the side wall adjacent to the side wall provided with the portion A1 so that the locking notches 24 and 25 closely contact the locking step A1. Since a part of the side wall, the locking pieces 10 and 11, and the supporting pieces 12 and 13 are cross-sectionally triangular frame. To be, this part, it becomes difficult to deform, the overall stiffness of this portion, it is possible to increase the strength. Further, since the side wall adjacent to the side wall provided with the locking step portion A1 is provided with the folding pieces 20 and 21 having the locking cutout portions 24 and 25, the locking cutout portions 24 and 25 are By locking the locking step portion A1 so as to be in close contact with the locking step portion A1, it is possible to reliably prevent the locking step portion A1 from moving outward (inward) of the side wall. In addition, the gluing part is unnecessary, and the assembly work can be done efficiently. Moreover, it has a simple structure, is easy to produce, is suitable for mass production, and can improve the strength, rigidity, and durability of the entire packaging box, making it economical and extremely excellent in practical use.

In particular, since the locking pieces 10 and 11 of the locking step portion A1 are arranged in a substantially oblique downward direction so that they are gradually separated from the top plate 1 as they are separated from the side wall, a load is applied to the lid A from above. Even if the support pieces 12 and 13 are deformed so as to be bent, the locking pieces 10 and 11 are arranged so that the support pieces 12 and 13 are closer to the top plate 1 than the side walls. There is no risk of tilting, and the locking step A1 does not slide outward from the side wall upper end surface of the box body B toward the outside of the side wall due to the load applied to the lid A from above. A1 is reliably and stably locked on the upper end surface of the side wall of the box body B. In addition, the side wall of the lid A provided with the locking step A1 can be tightened inward without being bulged outward due to the load applied to the lid A from above, and the appearance is good. Becomes

Further, in the packaging box according to the second aspect, locking step portions A1 that are locked to the upper end surfaces of the side walls of the box body B are provided at the inner surface portions of the opposite side walls of the lid body A, respectively. In the packaging box, the lid A has a substantially rectangular top plate 1 and a substantially rectangular top plate 1 which is connected to the outer edge of the top plate 1 via fold lines 40, 41, 42, 43, respectively. A rectangular front side plate 2, a rear side plate 3, a right side plate 4, a left side plate 5, and a folded-back piece 6 of a substantially elongated rectangular shape, which are connected to the lower end edges of the front and rear side plates 2 and 3 via fold lines 44 and 45, respectively. , 7 and the locking pieces 10 and 11 of a substantially elongated rectangular shape, which are continuously provided on the upper edges of the folding pieces 6 and 7 via fold lines 60 and 61, respectively, and the locking pieces 10 and 11 are folded at the leading edges of the locking pieces 10 and 11. Substantially elongated rectangular support pieces 12 and 13 that are respectively connected via eye lines 62 and 63, and are connected to the upper edges of the support pieces 12 and 13 via fold lines 64 and 65, respectively. The bent pieces 14, 15 having a substantially elongated rectangular shape, and the folded pieces 20, 21 having a substantially rectangular shape continuously provided on the lower end edges of the left and right side plates 4, 5 via fold lines 46, 47, respectively. 21 is provided with bending pieces 22 and 23 having a substantially rectangular shape continuously provided on the upper edge of the sheet via fold lines 66 and 67, respectively. The locking step portion A1 includes the locking pieces 10 and 11 and the support piece 12. , 13 and the locking pieces 10 and 11 are arranged in a substantially oblique downward direction so that they gradually separate from the top plate 1 as they move away from the side wall, and the upper edges of the support pieces 12 and 13 are arranged on the top plate 1. And the side walls are obliquely arranged so as to be positioned at the corners, and the turn-back pieces 20 and 21 continuously provided on the left and right side plates 4 and 5 are locked so as to be in close contact with the locking step A1. Since the locking notches 24 and 25 are formed, part of the side walls (the front side plate 2 and the rear side plate 3), the locking pieces 10 and 11, and the support piece 12 are formed. And 13, can be in a substantially triangular frame-shaped, this portion, deformation hardly a Rutotomoni, overall rigidity of this portion, it is possible to increase the strength. Further, the side wall (right side plate 4 and left side plate 5) adjacent to the side wall (front side plate 2 and rear side plate 3) provided with the locking step portion A1 has the folded piece 20, which has the locking notches 24 and 25. 21 is provided, the locking cutouts 24 and 25 are locked so as to be in close contact with the locking step A1, so that the locking step A1 is provided on the side wall (front side plate 2, rear side plate 3). ) It will certainly prevent you from trying to move outward (and even inward). In addition, the gluing part is unnecessary, and the assembly work can be done efficiently. Moreover, the structure is simple, easy to produce, suitable for mass production, the strength, rigidity, and durability of the entire packaging box can be improved, which makes it economical and practically excellent.

In particular, since the locking pieces 10 and 11 of the locking step portion A1 are arranged in a substantially oblique downward direction so that they are gradually separated from the top plate 1 as they are separated from the side wall, a load is applied to the lid A from above. Even when the support pieces 12 and 13 are deformed so as to be bent, the locking pieces 10 and 11 of the locking pieces 10 and 13 have the support pieces 12 and 13 with the creases on the side walls (front side plate 2 and rear side plate 3). Since there is no risk of tilting toward the top plate 1 more, the locking step A1 slides outward from the side wall upper end surface of the box body B due to the load applied to the lid A from above. As a result, the locking step portion A1 is reliably and stably locked to the upper end surface of the side wall of the box body B. Moreover, the side walls (the front side plate 2 and the rear side plate 3) of the lid body A provided with the locking step portions A1 are tightened inward without being bulged outwardly by the load applied to the lid body A from above. The appearance is also good.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view illustrating a lid of a packaging box according to the present invention.

FIG. 2 is a partial vertical cross-sectional view illustrating the lid of the packaging box of the present invention.

FIG. 3 is a development view illustrating a lid of the packaging box of the present invention.

[Explanation of symbols]

A lid A1 locking step 1 top plate 2 front side plate 3 rear side plate 4 right side plate 5 left side plate 6 folding piece 7 folding piece 8 folding piece 10 locking piece 11 locking piece 12 supporting piece 13 supporting piece 14 bending piece 15 Bending piece 16 Inserting piece 17 Inserting piece 18 Inserting piece 19 Inserting piece 20 Folding piece 21 Folding piece 22 Bending piece 23 Folding piece 24 Locking notch 25 Locking notch 40 Fold line 41 Fold line 42 fold line 43 fold line 44 fold line 45 fold line 46 fold line 47 fold line 48 fold line 49 fold line 50 fold line 51 fold line 52 fold line 53 fold line 54 fold line 55 fold line 56 fold line 61 fold line 60 fold line Fold line 62 Fold line 63 Fold line 64 Fold line 65 Fold line 66 Fold line 67 Fold line B Box body

Claims (2)

[Scope of utility model registration request] 1. A packaging box in which locking step portions that are locked to the upper end surface of the side wall of the box body are provided in a projecting manner on the inner surface portions of the side walls of the lid body that face each other. , A locking piece that is arranged in a substantially oblique downward direction so that it gradually separates from the top plate as it moves away from the side wall, and its lower end edge is connected to the leading edge of this locking piece, and its upper end edge is the top plate. And a supporting piece arranged in an inclined state such that it is located at a corner with the side wall, and a side wall adjacent to the side wall provided with the locking step portion is provided with a folding piece having a locking cutout portion, A packaging box characterized in that the locking notch is locked so as to be in close contact with the locking step. 2. A packaging box in which locking step portions which are locked to the upper end surface of the side wall of the box main body are respectively provided on the inner surface portions of the side walls of the lid body which face each other, wherein the lid body is substantially A rectangular top plate, a substantially rectangular front side plate, a rear side plate, a right side plate, and a left side plate that are connected to the outer edge of the top plate through fold lines, respectively, and fold lines at the lower end edges of the front and rear side plates. To each of the substantially rectangular strips connected to each other via a fold line, to the upper edge of the folded piece to each of the substantially rectangular strips connected to each other via a fold line, and to the tip edge of the locking piece. Substantially elongated rectangular support pieces that are connected to each other via fold lines, approximately elongated rectangular bent pieces that are connected to the upper edge of the support piece via fold lines, and lower end edges of the left and right side plates And a substantially rectangular bent piece continuously connected to the upper end edge of the folded piece with a substantially rectangular bent piece, respectively, and a locking step portion. Is a locking piece The support piece is arranged in a substantially oblique downward direction so that it gradually separates from the top plate as it separates from the side wall, and the top edge of the support piece is located at a corner between the top plate and the side wall. A packaging box characterized in that the folding pieces arranged in such a slanted state and connected to the left and right side plates are formed with locking notches that are locked in close contact with the locking step.