JP2001106226A - Lid opening or closing type storing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lid opening or closing type storing box capable of reducing a manufacturing expenditure of a die in such a way that folding lines or the like is formed straight lines as much as possible. SOLUTION: A bottom plate 2 of a box and a top plate 3 of a lid are set to have the same width to each other and they are cooperatively arranged in such a way that they can be folded through a hinge segment 4 having a width corresponding to a thickness of the box. Side surfaces 5, 6 and 7 becoming sidewalls are cooperatively arranged at an outside end and both side ends of the bottom plate 2 and the top plate 3 through folding lines. A folding connector segment 9 connects both ends of the hinge segment 4. The side surfaces 5, 6 and the side surfaces 5, 7 are connected by the folding segments 10. The folding lines at both ends of the side surfaces 6 cooperatively arranged at the outer end of the bottom plate 2 of the box are inclined toward the outer ends of the side surfaces 6 and are formed such that a length A' at the outer end of each of the side surfaces 6 becomes smaller than a width A of the bottom plate 2. After the box main body and the lid are folded and assembled into a box-like shape, the lid 3A can be outwardly fitted against the box main body 2A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid-openable storage box having a box body and a lid connected to each other by punching out a paper material and punching it out of a mold, and particularly to a machine for manufacturing the storage box by automation. The present invention relates to a lid opening / closing storage box with improved suitability for storage.

[0002]

2. Description of the Related Art A storage box in which a box body and a lid are integrally connected by punching and folding a paper material has been conventionally used, but it is often used mainly for packaging cassettes, CDs and the like. I have. In the case of such a package, a book-like body in which the main body and the lid are integrated can be easily opened and closed, and the box is not opened unless the film is broken by sealing this with a shrink film.

[0003]

In the case of such a storage box with an openable and closable lid, the width of the lid covered by folding the box body is generally formed to be larger than the width of the box body. Therefore, in the production of these boxes, due to mass production, the process flow is performed by automation of a machine that performs die cutting → gluing → assembly, but in the die cutting process, the contours and folds of the boxes are as designed in advance. It is an extremely elaborate operation to manufacture a mold having dimensions close to each other, which differ only by the thickness of the paper. For this reason, the fold lines and the like are not continuous straight lines but are discontinuous, resulting in extremely high precision, and inevitably high mold costs and the like.

[0004] As a countermeasure for the above-mentioned conventional problems, the present invention provides a lid-opening / closing type storage box in which the fold lines and the like are made as straight as possible to reduce the production cost by facilitating machine assembly as well as machine assembly costs. The task is to provide.

[0005]

As a means for solving the above-mentioned problems, the present invention provides a hinge portion having a width to form the thickness of a box by making the bottom plate portion on the box body side and the top plate portion on the lid side the same width. The bottom plate portion and the top plate portion are connected to each other at the outer end and both side ends of the bottom plate portion and the side portions on which side walls are to be formed via a bent curve, and the hinge portion is folded between both end portions. A connecting portion connects the outer end and the side portions at both side ends with a fold portion, and the folding curves at both ends of the side portion connected to the outer end of the bottom plate portion on the box main body side are formed of the side portions. It is formed so that the length A ′ of the outer end of the side portion is smaller than the width A of the bottom plate portion by inclining toward the outer end,
The side surfaces of the box main body and the lid are folded up and assembled into a box shape, and then the lid can be fitted to the box main body.

As a result, the box body and the lid covered by the box are formed so as to have the same vertical and horizontal width, so that the suitability for a machine is improved, and the hinge is folded and connected between both ends. The lid can be smoothly moved with respect to the box main body by connecting at the portions, and the bent curves at both ends of the side portion connected to the outer end of the bottom plate portion on the box main body side are inclined toward the outer end of the side portion. Then, since the length A 'of the outer end of the side portion was formed to be smaller than the width A of the bottom plate portion, each side portion of the box main body and the lid was folded up and assembled into a box shape. At this time, the lid can be easily opened and closed with respect to the box body.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a perspective view showing a state in which a lid 3A is opened from a box body 2A of a lid opening / closing type storage box 1 according to the present invention.
Is a perspective view showing a state in which the box body 2A of FIG. 1 is closed with the lid 3A, and FIG. 3 is a plan view showing the opened and closed lid storage box 1 of FIG.

A box body 2 having a rectangular shape forming a storage box 1
A bottom plate 2 and a rectangular lid 3 having the same dimensions as the bottom plate 2
The top plate 3 on the A side is connected to the hinge 4 having a width corresponding to the thickness of the box so that it can be bent to the left and right and aligned on a straight line.

Side portions 5A, 5A and 6A, 7A formed on side walls 5A, 5A and 6A, 7A are respectively formed on the upper and lower side edges and the outer edge of the bottom plate portion 2 and the upper and lower side edges and the outer edge of the top plate portion 3, respectively.
5 and 6, 7 are connected in series via respective folding lines,
A fold connection portion 9 is connected between both ends of the hinge portion 4, and a total of four fold portions 10 are connected between the side portions 5, 6 and 5, 7.

The inclined fold curves C at both ends of the side portion 6 connected to the outer end of the bottom plate portion 2 on the side of the box body 2A are inclined toward the outer end of the side portion 6. Outer end 6
The width A 'between the a and 6a is formed to be smaller than the width A of the bottom plate portion 2.

In this case, AA '= 2B, and B is the storage box 1
May be as small as the thickness of the side wall.

The outer sides of the side parts 5, 6, 7 are folds 11, 12, 13, 14 which are the same width as the side parts 5, 6, 7 and are separated by partition lines. Folded portions 13a and 14a are formed on the outside of the partition lines 13 and 14 so as to extend about half the length of the folded portions 13 and 14, respectively.

The folded portions 13a and 14a are
When the fold 7 is overlapped with the folds 7 and 8 by valley folding, the lugs 13b and 14 are overlapped on the peripheral edges of the bottom plate 2 and the top plate 3 and extend before and after the folds 13 and 14.
b both reinforce the corners of the bottom plate 2 and the top plate 3.

The folded portion 10 has a recess 10a between the side portion 5 and the side portion 6 and between the side portion 5 and the side portion 7 so as to face the corner 2a of the bottom plate 2 and the corner 3a of the top plate 3, respectively. From the recess 10a to the corner 2
A fold line 10b that forms a mountain fold is provided between a and 3a.

In the case where a rectangular lug 15 extending from the partition line of the fold 11 on the bottom plate 2 toward the fold 12 on the top plate 3 is provided, the stiffness of the hinge 4 increases. However, the ear piece 15 is not necessarily required because the hinge portion 4 does not merely become stiff at the time of shrinking. However, when the ear piece 15 is provided, the folding is performed with the diagonal line 15b ending at the outer end 11a of the partition line with the folding part 11 on the bottom plate 2 side starting from the position 15a near the side surface section 5 on the top plate section 3 side. It is partitioned so that it is folded in a valley.

A folding connection portion 9 provided outside the both end portions of the hinge portion 4 has a substantially square shape sandwiched by a partition line between the side portion 5 on the bottom plate portion 2 and the side portion 5 on the top plate portion 3 side. And the shape thereof is the side surface 5 on the bottom plate 2 side.
Midpoint 17 of a diagonal line 16 obtained by connecting the leading end 5a of the partitioning line and the base end 5b of the partitioning line of the side surface portion 5 on the top plate 3 side.
And two isosceles triangles a and b obtained by a middle line connecting the base end 5b of the partition line of the side surface portion 5 on the bottom plate portion 2 side, a midpoint 17 of the diagonal line, and a partition line of the side wall 5 on the lid 3 side. Point 1 at right angles to
8 and a right-angled triangle c obtained by connecting them to each other.

Reference numeral 19 denotes a handle provided on the lid 3 side, which is used when opening the storage box 1.

Since the storage box 1 according to the present invention is formed as described above, the storage box 1 having the lid 3A integrated with the box main body 2A shown in FIG.
It can be.

That is, the storage box 1 is formed by a sequence of molding, gluing, and assembling. First, when the molding shown in FIG. 3 is completed, the side surface portion 5 on the bottom plate portion 2 and the top plate portion 3 are assembled by the assembling machine. The folded portions 11 and 12 on the outer side of the side portion 5 are glued as shown by a line 20 and are folded and adhered inside the side portion 5 so that the side portion 5 and the folded portions 11 and 12 are integrated. The side wall 5 is bent toward the bottom plate 2 and the top plate 3 to form the side wall 5A which stands up. At this time, the glue portion 21 indicated by ● on the ear piece 15 and the isosceles triangles a and b of the folding connection portion 9 are indicated by ●.
Are glued in the same manner and adhered to each other.

At this time, the folded portion 10 provided between the side wall 5A and the side surface portion 6 and between the side wall 5A and the side surface portion 7 approach the side surface portions 6 and 7 by the mountain fold line 10b. The glued portion 21 indicated by ● and the glued portion 21 indicated by ● on the side surface portions 6 and 7 are glued to the side where the side portions 6 and 7 are folded.

Next, the folded portion 13a is mountain-folded into the folded portion 13, and the folded portion 14a is mountain-folded into the folded portion 14 so that the folded portion 13 and the folded portion 14 are bent at right angles to the side surface 5 and the bottom plate 2 side. Side portions 6 and 7 on top plate 3 side
13a when folded by valley fold
The folded portion 14a is overlapped along the partition line on the bottom plate portion 2 side and the top plate portion 3 side, and the lugs 13b and 14b are brought into close contact with the side wall 5A side so that the corners of the bottom plate portion 2 and the top plate portion 3 are formed. The side wall 6A and the side wall 7A are formed so as to be reinforced and stand up on the bottom plate 2 and the top plate 3.

Thus, the box body 2 as shown in FIG.
A shows a perspective view with the lid 3A opened. In this case, the length of the upper side of the side wall 6A becomes shorter than the length of the side wall 7A of the lid 3A due to the folding along the inclined folding curves C, C.

Next, as shown in FIGS. 1 and 2, when the lid 3A is put on the box main body 2A, when the lid 3A starts to be folded on the box main body 2A about the longitudinal direction of the hinge 4, the hinge 4
Is divided into three triangles a, b, and c as described above, so that all three partitioning lines are mountain-folded to form a midpoint 17.
And the triangles a, b, and c operate in a state of standing upright. As the rotation proceeds, the triangle a starts to fall so as to approach the hinge portion 4. When the lid 3A further turns toward the box body 2A, the triangle b overlaps the triangle a. When the lid 3 is completely closed, the triangle b further falls over the triangle c, and the triangle 4 overlaps the triangle b. Triangle within partition line a. It operates so that b and c may be folded. When the tabs 15 extending from the partition line toward the fold 12 on the lid 3A side are provided on the fold 11 on the box main body 2A side, the side walls 5A. When the storage box 1 is assembled between 5A, the glue portion 21 of the lug 15 and the glue portion 21 of the foldable connection portion 9 are glued to the inside of the fold connection portion 9 when the storage box 1 is assembled. And may be adhered or not glued.

In the final stage of assembly, in order to cover the outside of the side wall 6 of the lid 3A inside the side wall 6 of the box body 2A, the upper end width A 'of the side wall 6 of the box body 2 with respect to the lid 3A is A
2B, since the width A between the upper ends of the side walls 6 of the lid 3A is shorter than the width A, the lid 3A can be easily put on the box body 2A, and the state of FIG. 2 is obtained.

[0026]

Since the present invention is constructed as described above, the following effects can be obtained. 1) Since the bottom plate portion and the top plate portion are connected by a straight line, the mold can be easily formed, and the manufacturing cost of the mold can be reduced. 2) Since the width of the side wall of the bottom plate of the box body can be made smaller than the width of the side wall of the top plate of the lid, the lid can be opened and closed smoothly even when the bottom plate and the top plate have the same width. 3) Good mechanical suitability during automatic assembly of the storage box.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a lid of a lid opening / closing type storage box according to the present invention is opened.

FIG. 2 is a perspective view showing a state in which a lid of FIG. 1 is closed.

FIG. 3 is a developed plan view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening-closing storage box 2 Bottom plate part 2A Box main body 3 Top plate part 3A lid 4 Hinge part 5 Side part 5A Side wall 5a Tip 5b Base end 6,7 Side part 6A, 7A Side wall 7,8 Folding part 9 Folding connection part 10 Folded part C Inclined bent curve 11, 12, 13, 14 Folded part 13a, 14a Folded part 15 Ear piece 19 Handpiece 20 Thick line 21 Glued part A Bottom plate width A 'Side end outer width

Claims (1)

[Claims] A bottom plate on the box body side and a top plate portion on the lid side have the same width, and are connected to each other via a hinge having a width to form the thickness of the box. Side portions on which side walls to be formed on the outer end and both side ends of the plate portion are continuously connected via a folding curve, and both end portions of the hinge portion are connected by folding connection portions to form side portions of the outer end and both side ends. The fold curves at both ends of the side portion connected to the outer end of the bottom plate portion on the box body side are inclined toward the outer end of the side portion, and the width of the outer end of the side portion is A 'is formed so as to be smaller than the width A of the bottom plate portion. After the side portions of the box main body and the lid are folded up and assembled into a box shape, the lid can be externally fitted to the box main body. A lid-openable storage box, characterized in that: