JP2002211541A - Height changeable box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box from which contents can be easily taken out regardless of the amount of the contents left in the box without scattering the contents in the neighborhood and whose opening is always covered. SOLUTION: The cover wall and the peripheral side wall of a box are provided with an easily breakable line in advance for easily opening and closing a top cover piece and for forming the box shorter by removing the top half of the box from the breakable line on the side wall leaving the top cover piece and its supporting part when the contents become less.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a box having a shape of a powder, a granular material, a small piece, an elongated body, and the like, which is a vertically long and relatively small rectangular hexahedron used mainly for storing foodstuffs.

[0002]

2. Description of the Related Art When taking out and using the contents of this kind of box, usually, the top lid is opened and the contents are scooped out or picked up with a finger. As the items decrease, it becomes difficult to scoop out or pinch out with your fingers, so you have to reverse the box to take out the contents near the bottom, and you will have to jump out in large quantities without thinking And the surroundings and hands become dirty.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional box, the present invention provides a method for reducing the amount of contents.
It is an object of the present invention to provide a box body in which the height of the box body can be easily reduced and the opening of the box body can be covered with a lid in an orderly manner.

[0004]

According to the first aspect of the present invention, a front wall, a rear wall, left and right side walls,
In the main body of a rectangular hexahedron formed of a single sheet material typified by cardboard, consisting of a bottom wall and a lid wall, an upper lid piece is provided on one upper edge of both front and rear walls via a first mountain fold line. On the other upper edge of the front and rear walls, a lower lid piece is provided via a second mountain fold line,
Dust flaps are respectively extended from the upper edges of the left and right side walls through third and fourth mountain fold lines, and the tip of the upper lid piece is provided with an adhesive allowance, and the adhesive allowance is provided by the lower part. In the vicinity of the second mountain fold line of the lid piece, the upper lid piece is adhered to the lower lid piece, and on the first mountain fold line side of the bonding margin of the upper lid piece, an upper lid easy-break line is formed across the entire width of the upper lid piece. Was configured.

Further, one of the front and rear walls on which the lower lid piece is formed and the left and right side walls are provided with the widths of the left and right side walls downward from the first to fourth mountain fold lines. A fifth mountain fold line, which is parallel to the first to fourth mountain fold lines, is formed in series at a position lowered by a length equal to the dimension, and is provided on one of the front and rear walls on which the upper lid piece extends. Is the fifth
A first easy-break line is formed in the same phase as the mountain-fold line, and both left and right walls facing the first easy-break line are provided with a second mountain-fold of the lower lid piece from both ends of the first easy-break line. Second and third breakable lines continuous to both ends of the line are formed obliquely, and the lower lid piece extends from a central region of the second and third breakable lines. The valley fold lines reaching both ends of the fifth mountain fold line formed on one of the front and rear walls are formed obliquely.

According to the second aspect of the present invention, a locking projection is protruded from the distal end edge of the lower lid piece, and the protruding end of the locking projection is a second projection.
The distance from the mountain fold line is equal to or less than the width of the left and right side walls, the upper cover piece is formed with an engagement slit with which the locking projection can be engaged, and the upper cover piece has a lower portion below the first easy break line. A structure in which an engaging slit with which the locking projection can be engaged is formed on a wall surface is added to the invention of claim 1.

According to the third aspect of the present invention, the locking projection protruding from the lower lid piece is formed on both sides with a valley fold line on the same line as the leading edge of the lower lid piece. A lower lid engaging slit protruding in the direction of the second mountain fold line of the lower lid piece is formed so as to be capable of engaging with the engaging slit of the upper lid piece and the engaging slit below the first easy breaking line, respectively. Is added to the invention of claim 2.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of an embodiment applied to each of the first, second and third aspects of the present invention. A front wall 1, a rear wall 2, left and right side walls 3, 3 are shown. , Bottom wall 4 and lid wall 5
A rectangular hexahedral box formed of one sheet material typified by cardboard is shown.

As shown in the exploded view of the blank shown in FIG. 2, the box main body includes a front wall 1, a rear wall 2, left and right side walls 3,
3 are continuously provided via vertical mountain fold lines 6, 7, 8, and 9. Note that the structure described below can be applied as it is even when the front wall 1 and the rear wall 2 are replaced.

An upper lid piece 1 is connected to the upper edge of one of the front and rear walls (the front wall 1 in the example shown in FIGS. 1 and 2) via a first mountain fold line 10.
A lower lid piece 13 is provided on the upper edge of the other of the front and rear walls (the rear wall 2 in the illustrated example) via a second mountain fold line, and a third lid is provided on the upper edges of the left and right side walls 3 and 3. Dust flaps 16 and 16 extend through the mountain fold line 14 and the fourth mountain fold line 15, respectively.

The tip 17 of the upper lid piece 11 is provided with an adhesive margin 18, which is adhered to the lower lid piece 13 near the second mountain fold line 12 of the lower lid piece 13. The first mountain fold line 1 of the bonding margin 18 of the upper lid piece 11
On the 0 side, there is an upper lid easy breaking line 19 that crosses the entire width of the upper lid piece 18.
Are formed.

The rear wall 2 on which the lower lid piece 13 is formed and the left and right side walls 3 and 3 respectively extend from the first to fourth fold lines 10, 12, 14 and 15 downward and right and left. A fifth mountain fold line 20 parallel to the first to fourth mountain fold lines 10, 12, 14, 15 is formed in series at a position lowered by a length equal to the width dimension B of both side walls 3, 3. I have.

A first easy break line 21 is formed on the front wall 1 from which the upper lid piece 11 extends, in the same phase as the fifth mountain fold line 20. On both left and right side walls 3 and 3 facing both ends of the lower cover piece 13, a second easy break line 22 and a third break line continuous with both ends of the second mountain fold line 12 of the lower lid piece 13 are provided. The easy breaking lines 23 are each formed obliquely as shown in the drawing. As the above-described upper cover easy breaking line 19 and the first, second, and third easy breaking lines, an arbitrary one such as a well-known perforation breaking line, a zipper-like breaking line, a discontinuous slit breaking line, or the like is selectively adopted. .

Further, from the central region of the second easy breaking line 22 and the third easy breaking line 23, both ends of a fifth mountain fold line 20 formed on the rear wall 2 from which the lower lid piece 13 extends. Are formed as shown in the figure.

FIG. 3 shows a main part of the blank of the first embodiment applied to each of the second and third aspects of the present invention. Is protruding,
The distance between the protruding end 27 of the locking protruding piece 26 and the second mountain fold line 12 is less than the width B of the left and right side walls 3 and 3.

On the other hand, the upper lid piece 11 is formed with an engagement slit 28 with which the locking projection 26 can be engaged. Also, the locking slit is formed on the wall surface of the front wall 1 below the first easy breaking line 21. Protruding piece 26
Is formed with an engagement slit 29 that can be engaged with.

FIG. 4 shows a second embodiment of the present invention.
The main part of the blank of 2nd Example of this invention is shown,
The locking projection 31 projecting from the lower lid piece 13 is
A valley fold line 32, 32 on the same side as the leading edge 30 of the third ridge 3 is formed on both sides, and between the valley fold lines 32, 32, a lower edge locking piece projecting toward the second mountain fold line 12 of the lower lid piece 13. 33 are sized to be able to engage with the slit 34 and the engagement slit 35 below the first easy breaking line 21, respectively.

The engaging slits 34 and 35 are parallel to the tip 17 of the upper lid piece 11 and the first easy breaking line 21 and have a width that allows the lower edge locking piece 33 to be inserted.
35, small slits 36, 37, 38, 39, 40 and 41 are formed at both ends and the center toward the container bottom wall 4.

When the contents stored in the box are to be taken out for the first time by the above-described configuration, first, the upper lid easy breaking line 19 shown in FIGS. 1 and 2 is cut off. Then, the lid wall 5 (the upper lid piece 11) can be bent outward around the first mountain fold line 10 while leaving the bonding margin 18, and then the lower lid piece 13 is moved to the second mountain fold line 1
Bend outward around 2 and both dust flaps 16, 16
Are bent outward around the third mountain fold line 14 and the fourth mountain fold line 15, respectively, whereby the contents can be easily taken out.

When the removal of the contents is completed, the dust flaps 16 and 16, the lower lid piece 13 and the upper lid piece 11 are folded back to the old position, so that foreign substances can be prevented from entering the box.

The box having the lower lid 13 protruding from the locking projection 26 shown in FIG. The lower lid piece 13 is covered and locked on the upper part, so that entry of foreign matter into the box is more reliably prevented.

By sequentially taking out the contents, the position of the upper surface of the contents gradually lowers and becomes lower than the position of the first easy break line 21, and when it becomes difficult to take out the contents, the second easy break line 22 is used. When the first easy-break line 21 and the third easy-break line 23 are cut as a series, the easy-break lines 22, 21 and 23 are obtained.
The part of the front wall 11 and the side walls 3, 3 including the upper lid piece 11 and the dust flaps 16, 16 from above is integrally cut off.

In the lower half of the remaining box, the height of the first box is set to H.
Then, the height becomes (H-B) and becomes shallow by the height of B, so that the remaining contents can be easily taken out.

In the box having the structure shown in FIG. 3, after the upper lid easy breaking line 19 is cut off and the contents are taken out, both dust flaps 16 and 16 are folded inward, and then the bonding margin 18 is cut off. By folding the shortened upper lid piece 11 inward, further inserting the lower lid piece 13 from above and inserting and locking the locking projection 26 into the engaging slit 28, the opening of the box is completely In addition, the clothing is securely coated, and the entry of foreign matter into the box is prevented.

FIG. 5 is a perspective view showing the remaining lower half of the box body having the locking projection 33 shown in FIG. 4, and the structure other than the lower edge locking piece 33 is shown in FIGS. Is the same as the perspective view of the lower half of the box in the embodiment of the box shown in FIG.

Therefore, when the upper portion is cut off from the second easy-break line 22, the first easy-break line 21, and the third easy-break line 23 to form a low box, when the lid is closed, as shown in FIG.
Upper half 42, which is the part of the rear wall 2 above the fifth mountain fold line 20
Covers the opening, and the lower lid piece 13 is
, The remaining lower portion of the front wall 1 is covered, and the locking projection 26 is inserted into the engagement slit 29 to cover the lowered opening of the box more securely. To prevent.

In the box having the structure shown in FIG. 4, as shown in FIG. 5, the locking projection 31 of the lower lid piece 13 is engaged with the engagement slit 34 of the upper lid piece 11, as described in paragraph number 0021.
When the locking protrusion 31 is bent by the valley fold lines 32, 32 to slightly raise the lower edge locking piece 33, the lower edge locking piece 33 is pivoted slightly downward to be protruded. Stop 33
Is very easily engaged with the engagement slit 34, and the opening of the box is covered very easily and reliably. At this time, the engagement slit 34 is easily inclined to the inside of the box due to the presence of the small slits 36, 37, 38, so that the engagement is performed smoothly and reliably.

Similarly, when the opening of the lower box is covered, as described in paragraph 0024 above, the engagement of the lower edge locking piece 33 with the engagement slit 35 is performed by the small slit 3.
Due to the presence of 9, 40, 41, it is very easy and reliable.

FIG. 6 shows a main part of a blank according to a third embodiment of the present invention to which the third aspect of the present invention is applied. A first easy break line 43 corresponding to the first easy break line 21 shown in FIG.
Is a zipper-like breaking line for tearing, and the second breakable line 22 and the third breakable line 23 shown in FIG.
The easy-break line 44 and the third easy-break line 45 are perforated push-cut lines, and the first easy-break line 43 is easily gripped and torn by a toe, and the second and third break lines are easy to tear. The easy break lines 44 and 45 are designed to facilitate the push-off by the toes, improve the operation when changing the height of the box, and maintain the appearance of the box after the operation is excellent. .

[0030]

According to the first aspect of the present invention, the upper lid piece can be easily separated from the bonding margin at the upper lid easy-break line, and then the upper lid piece, the lower lid piece, and both dust flaps can be easily opened. It is possible to easily take out an object, and furthermore, it is possible to maintain the covering of the opening and to prevent foreign matter from entering the box.

When the content is reduced and it becomes difficult to take out, the upper part of each of the first to third breakable lines is easily cut off from each breakable line to be used as a shallow box having a low height. Makes it very easy to remove the remaining contents, and even in shallow boxes of low height,
This has the effect of holding the covering of the opening and preventing foreign matter from entering.

According to the second aspect of the present invention, in addition to the effect described in the paragraph [0030], the effect that the opening can be reliably held and covered by the insertion engagement of the locking projection into the engagement slit is exerted.

In addition to the effects described in paragraph [0031], in addition to the effect described in the paragraph [0031], the insertion of the locking projection into the engagement slit below the first easy-break line allows the covering of the opening to be maintained even in the case of a low box. It has an effect that can be surely achieved.

According to the third aspect of the invention, in addition to the effects described in the paragraphs [0030] and [0032], the insertion of the engaging projection into the engaging slit is made extremely easy and reliable, and the opening is covered. This has the effect of making it possible to hold the sheet extremely easily and reliably.

Paragraph number 0031 and paragraph number 00
In addition to the effects described in paragraph 33, the covering of the opening of the box, which is low and shallow, makes the insertion of the engaging projections into the engaging slits extremely easy and secures the retention of the covering of the opening. It has an effect that can be easily and reliably achieved.

In any of the inventions, when the contents are reduced, conventionally, the box is tilted and taken out, which is troublesome, and the effect of frequently scattering the contents is eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a box to which the inventions of claims 1, 2 and 3 are applied.

FIG. 2 is an exploded view of the box blank shown in FIG.

FIG. 3 is a development view of the upper half of the blank of the box according to the second embodiment of the present invention.

FIG. 4 is a development view of only the upper half part of the blank according to the third aspect of the present invention.

FIG. 5 is a perspective view showing a state before opening the lower box after the upper half of the box in the developed view shown in FIG. 4 is cut off.

FIG. 6 is a development view of a main part of a blank as another embodiment of the configuration shown in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front wall 2 Rear wall 3 Side wall 4 Bottom wall 5 Cover wall 6, 7, 8, 9 Vertical mountain fold line 10 First mountain fold line 11 Top cover piece 12 Second mountain fold line 13 Lower cover piece 14 Third mountain fold line 15 Fourth mountain fold Line 16 Dust flap 17 Tip 18 Adhesion allowance 19 Top cover easy break line 20 Fifth mountain fold line 21 First easy break line 22 Second easy break line 23 Third easy break line 24 Valley fold line 25 Valley fold line 26 Locking protrusion 27 Projection End 28 Engagement slit 29 Engagement slit 30 Front edge 31 Engagement projection piece 32 Valley fold line 33 Lower edge engagement piece 34 Engagement slit 35 Engagement slit

Claims (3)

[Claims] 1. A main body of a rectangular hexahedron formed of a single sheet material represented by cardboard, comprising a front wall, left and right right and left side walls, a bottom wall, and a lid wall. On the upper edge, the upper lid piece via the first mountain fold line, on the other upper edge of the front and rear walls, the lower lid piece via the second mountain fold line, and on the upper edge of the right and left side walls, Dust flaps are respectively extended through the third and fourth mountain fold lines, and the tip of the upper lid piece is provided with an adhesive margin, and the adhesive margin is in the vicinity of the second mountain fold line of the lower lid piece. While being bonded to the lower lid piece, an upper lid easy-break line crossing the entire width of the upper lid piece is formed on the first mountain fold line side of the bonding margin of the upper lid piece, and the lower lid piece is formed. One of the front and rear walls and the left and right side walls,
A fifth mountain fold line, which is parallel to the first to fourth mountain fold lines, is formed in series at a position down from the first to fourth mountain fold lines by a length equal to the width dimension of the left and right side walls. A first easy break line is formed on the other of the front and rear walls from which the upper lid piece is extended, in the same phase as the fifth mountain fold line, and at both ends of the first easy break line. On each of the right and left side walls, second and third easy break lines continuous from both ends of the first easy break line to both ends of the second mountain fold line of the lower lid piece are formed obliquely. At the same time, a valley fold line reaching both ends of a fifth mountain fold line formed on one of the front and rear walls from which the lower lid piece extends is formed from the central region of each of the second and third easy break lines. Variable height box formed on the slope. 2. A locking projection is protruded from a distal end edge of the lower lid piece, and a projection end of the locking projection has a feeling of the second mountain fold line not more than the width dimension of the left and right side walls. The upper cover piece is formed with an engagement slit with which the locking projection can be engaged, and the wall below the first easy-break line is provided with an engagement slit with which the locking projection can be engaged. The variable height box according to claim 1, wherein a mating slit is formed. 3. A locking projection protruding from the lower lid piece is formed on both sides with a valley fold line on the same line as the leading edge of the lower lid piece, and between the two valley fold lines. 3. A lower edge locking piece protruding in the direction of the second mountain fold line is formed, and is sized to engage with the engaging slit of the upper lid piece and the engaging slit below the first easy breaking line, respectively.
Variable height box as described.