JP2001301743A - Packaging paper case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging paper case which can be simply fabricated into the shape of a case out of the state of being unfolded and stably held under the state of being fabricated and also can be dismantled quickly without being damaged. SOLUTION: At the lower ends on both sides of right and left of inner panels 1a and 2a of front-side and backside panels 1 and 2 each comprising the inner and outer panels 1a, 1b and 2a, 2b, notched parts 11 and 11 each in a width smaller than the width of each of bottom panel overlapping pieces 6 and 6 of right and left panels corresponding to the front-side and backside panels are provided. Finger insertion holes 8 are provided respectively at the lower ends of the inner panels 1a and 2a on positions each at the middle in the breadthwise direction. Both of the end edges of the bottom panel overlapping pieces 6 and 6 of the right and left panels are formed respectively in a shape tilting toward the inside. A pair of inner panel bending creases 9 and 9 each extending toward corners on the right and left at the upper end of the inner panel are provided at the peripheral edge of each of the finger insertion holes 8. Gap forming protuberances 14 and 14 projecting toward the outer panels 1b and 2b are provided respectively at bottom panel overlapping pieces 5 and 5 of the front- side and backside panels.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a packaging paper box, and more particularly to a packaging paper box which can be assembled without bonding important points.

[0002]

2. Description of the Related Art As shown in FIG. 5, this type of wrapping paper box has front and rear side walls (51) and (52) and left and right side walls (53) formed of inner and outer double walls around four sides of a bottom wall (50). (54) are erected and outer wall portions (52b) (54b) of adjacent side walls are connected to each other via a connecting piece (not shown) composed of a pair of triangular folded half portions, Connecting reinforcing inserts (57) at both ends of each inner wall (53a) (54a) of the wall
(57) is provided, and the connection reinforcing inserts (57) (57) are inserted between the inner and outer walls of the front side wall (51) or the rear side wall (52), and the front and rear side walls (51) (52) By overlapping the bottom wall overlapping pieces (56) and (56) provided on the lower edges of the inner wall sections on the left and right side walls on both ends of the bottom wall overlapping pieces (55) and (55) connected to the lower edge of the inner wall section, 2. Description of the Related Art A packaging paper box (B) having a box shape is known.

[0003] Such a packaging paper box (B) does not require bonding at important points, and therefore has the advantage that the box shape is firmly maintained despite its relatively easy manufacture. It has.

[0004]

However, in such a packaging paper box (B), the connection reinforcing inserts (57) and (57) are provided between the inner and outer walls of the front side wall (51) or the rear side wall (52). Since it is inserted, when disassembling it, for example, the front wall (5
It is somewhat difficult to disassemble while 1) and the rear side wall (52) lie down. Therefore, as shown in FIG. 6, the bottom wall overlapping pieces (56) (5) of the left and right side walls (53) (54)
6), the overlap between the end portion and the end portions of the bottom wall overlap pieces (55) and (55) of the front and rear side walls is released, and the bottom wall overlap pieces (55) and (55) of the front and rear side walls are released. ) And inner wall (51
a) It must be dismantled so that (52a) is flipped up.

As described above, the left and right side walls (53)
The operation of flipping up the bottom wall overlapping pieces (55) (55) and the inner wall portions (51a) (52a) of the front and rear side walls while causing the bottom wall overlapping pieces (56) and (56) of (54) to bend back is a little. It is troublesome. Also, without performing such an operation procedure, the bottom wall overlapping pieces (55) and (55) of the front and rear side walls and the inner wall portion (51a)
Attempting to flip up (52a) may tear or break a particular part. If this is a dismantling operation just for disposal, there is no problem,
If, for some reason, the assembled packaging paper boxes must not be used and must be disassembled and stored until they are actually used, the specific parts as described above may be torn. Damage must be avoided and quick dismantling is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can be easily assembled into a box form from an expanded state. An object of the present invention is to provide a packaging paper box that can be quickly disassembled without damaging the paper.

[0007]

According to the present invention, in order to achieve the above object, a finger insertion hole is provided in an inner wall portion of the front and rear side walls, and a finger is inserted into the finger insertion hole to raise the inner wall portion of the front and rear side wall. By simply pulling up, the assembled state of the front and rear side walls and the left and right side walls is easily released, and the packaging paper box can be easily disassembled.

That is, according to the first aspect of the present invention, the front and rear side walls and the left and right side walls composed of inner and outer double walls are provided on four sides of the rectangular bottom wall. And a connecting reinforcement insert is inserted between the inner and outer walls of the front side wall or the rear side wall, and a bottom wall superimposed at the lower edge of the inner wall of the front and rear side walls. In a packaging paper box in which the box shape is maintained by overlapping the ends of the bottom wall overlapping pieces provided on the lower edges of the inner walls of the left and right side walls on both ends of the piece, the inner walls of the front and rear side walls are provided. The portion is characterized in that a notch shorter than the width of the bottom wall overlapping piece of the corresponding left and right side walls is provided at the lower end of the left and right ends, and a finger insertion hole is provided at the lower center in the width direction. Wrapping paper box.

In the packaging paper box according to the present invention, the front and rear side walls and the left and right side walls indicate relative positions. If one of the front and rear side walls is called a front side wall,
If the other side is called a rear side wall and the front and rear side walls are called left and right side walls, the other pair of opposing side walls will only be called front and rear side walls.

According to the packaging paper box of the first aspect of the present invention, for example, a thumb is inserted into the finger insertion hole of the front side wall or the rear side wall, and the upper wall of the finger insertion hole is pinched so that the inner wall portion is formed. When trying to pull up, the left and right ends of the bottom wall overlapping piece of the front side wall or the rear side wall receive the resistance of the bottom wall overlapping piece of the left and right side walls, but the lifting operation is continued as it is against the resistance It is possible to pull up the bottom wall superposed piece of the front side wall or the rear side wall from below the bottom wall superposed piece of the left and right side walls without requiring an operation of warping the bottom wall superposed piece of the left and right side walls. The inner wall portion of the side wall or the rear side wall can be greatly jumped upward.

That is, since the notch portion shorter than the width of the bottom wall overlapping piece of the corresponding left and right side wall is provided at the lower end portion of the left and right end of the inner wall portion, the end of the bottom wall overlapping piece of the left and right side wall is formed. It is inserted into the notch, which serves as a guide, allowing a slight upward pulling of the inner wall of the front or rear wall and its bottom wall overlapping piece, and receives resistance at a certain point,
If it continues to be pulled up against it, the front side wall or the rear side wall and the bottom wall overlapping piece are largely bent upward around the longitudinal central portion, and the overlapping of the bottom wall overlapping pieces on the left and right side walls is released. It will be.

According to the second aspect of the present invention, since a pair of inner wall bending folds toward the left and right upper corners of the inner wall are provided at the outer edge of the finger insertion hole in advance, the inner wall of the front side wall or the rear side wall is provided. Are easily bent, and the operation of raising the inner wall portion can be smoothly performed.

[0013] According to the third aspect of the present invention, since the bottom wall overlapping pieces of the front and rear side walls are provided with the gap forming protrusions protruding toward the outer wall, the inner and outer wall portions of the front and rear side walls are provided. Is reliably formed between them, and the finger can be easily inserted into the finger insertion hole, so that the lifting operation can be performed more quickly.

According to the fourth aspect of the present invention, since both end edges of the bottom wall overlapping pieces on the left and right side walls are formed to be inclined inwardly, the operation of raising the inner wall portion can be performed more smoothly. It will be close.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a packaging paper box according to the present invention will be described with reference to the illustrated embodiments.

FIG. 4 is a plan view of the wrapping paper box (A) in an unfolded state. The folds (21), (21), (22), and (22) are formed on four sides of a substantially square bottom wall (10). Through the front and rear side walls (1)
(2) and outer wall portions (1b) of left and right side walls (3) and (4)
(2b), (3b), and (4b) are continuously provided, and the inner wall portions (1a) (2) are formed on the respective outer wall portions through folds (23), (23), (25), and (25).
a), (3a) and (4a) are provided in series. Further, the lower edge of each of the inner wall portions (1a), (2a), (3a), and (4a) is connected to the bottom wall overlapping piece (5) through folds (24), (24), (26), and (26).
(5), (6) and (6) are connected in series. The adjacent outer wall portions (1b) and (3b) (4b), (2b) and (3
b) (4b) a pair of triangular folded halves (12a)
They are connected via connecting pieces (12) made of (12b). (27) is a fold between the outer wall (1b) (2b) of the front side wall (1) or the rear side wall (2) and the triangular folded half (12b)... (28) is a left side wall (3 ) Or the fold between the outer wall portions (3b) and (4b) of the right side wall (4) and the triangular half halves (12a)... (29) are between the triangular half halves (12a) and (12b). It is a fold.

Hook-shaped cuts (1) are formed at the lower ends of the left and right ends of the inner walls (1a) and (2a) of the front wall (1) and the rear wall (2).
3) When (13) is provided and the bottom wall overlapping pieces (5) and (5) are bent horizontally from the inner wall portions (1a) and (2a) in the assembled state, cutout portions (11) and (11) are formed. It has been done. The length of the notch (11) is set to be shorter than the width of the bottom wall overlap piece (6) of the left and right side walls, that is, the length from the base end to the free end of the bottom wall overlap piece (6). Have been.

A semicircular finger insertion hole (8) is provided at the center lower end in the width direction of the inner walls (1a) and (2a), and projects toward the outer walls (1b) and (2b). Protrusions (14) (14) for gap formation are provided. Further, there are provided a pair of oblique folds (9) and (9) for bending the inner wall starting from the outer edge of the finger insertion hole (8) toward the upper end corner of the inner wall.

On the other hand, the inner walls (3a) (4)
At both ends of a), both the inner and outer wall portions (1a), (1b) or (2) of the front side wall (1) or the rear side wall (2) are formed through folds (30).
a) Insertion piece (7) for connection reinforcement inserted between (2b) ...
Are connected.

The packaging paper box (A) having the above configuration is assembled through a predetermined assembling operation from the expanded state. In the assembled state shown in FIG. It is stored in a box. Then, after taking out the packaged product or once assembling it but has to be disassembled for some reason, the following operation is required to perform the following without damaging the packaging paper box. It can be easily and quickly dismantled without any problems.

At the time of disassembly, first, as shown in FIG.
The finger insertion hole (8) in the front wall (1) or the rear wall (2)
Then, for example, a thumb is inserted, and the inner walls (1a) and (2a) are pulled upward so as to pinch the upper edge of the finger insertion hole (8).
When this lifting is started, the notches (11) and (11) at the lower ends of the left and right ends of the inner wall portions (1a) and (2a) are shorter than the width of the corresponding bottom wall overlapping pieces (6) and (6) of the left and right side walls. Is provided, the bottom wall overlap pieces (6) and (6) of the left and right side walls are provided.
Is inserted into the cutouts (11) and (11), and this serves as a guide, and the inner wall portions (1a) and (2a) of the front wall (1) or the rear wall (2) and the bottom wall overlap piece. (5) A slight upward movement of (5) is allowed. When the tip of the inclined end and the end of the notch (11) are pulled up to a position where they come into contact with each other, resistance is applied. However, at this time, as shown in FIG.
(2a) is bent so as to protrude forward about the center in the width direction, and the bottom wall overlapping piece (5) is bent so as to protrude upward about the center in the width direction. The front side wall (1) or the rear side wall (2) against the resistance without requiring any strong force.
The ends of the bottom wall overlapping pieces (5) and (5) can be smoothly pulled up from the ends of the bottom wall overlapping pieces (6) and (6) on the left and right side walls located above the bottom wall overlapping pieces (5) and (5). And the inner wall (1a) (2
When a) is greatly flipped upward, the inner and outer walls (1a)
(1b) or (1b) and (2b) inserted between the left and right side walls no longer restrain the reinforcing connecting pieces (7) (7), so that the left and right side walls (3) and (4) are removed. It can be easily laid down, and a flat disassembly state can be realized.

[0022]

As described above, the wrapping paper box (A) according to the first aspect of the present invention has the inner wall portions (1a) (2)
Since the finger insertion hole (8) is provided at the center lower end in the width direction of (a), the fingers are inserted into the finger insertion hole (8) at the time of dismantling operation, so that the inner wall portions of the front and rear side walls are formed. To make the dismantling operation easy. Moreover, notches (11) and (11) which are shorter than the widths of the corresponding bottom wall overlapping pieces (6) and (6) of the left and right side walls are provided at the lower ends of the left and right ends of the inner wall portions (1a) and (2a). When the dismantling operation is started, the ends of the bottom wall overlapping pieces (6) and (6) on the left and right side walls are inserted into the cutouts (11) and (11), and this serves as a guide to provide a certain resistance. While receiving, smooth dismantling operation afterwards. As a result, it is possible to perform the dismantling operation without requiring an operation for warping the bottom wall overlap pieces (6) and (6) of the left and right side walls, and without requiring a large force. Moreover, since the packaging paper box (A) is not damaged, there is an advantage that the paper pieces can be prevented from being scattered during the dismantling operation, and can be assembled again without any trouble even after being dismantled once.

According to the second aspect of the present invention, since a pair of inner wall bending folds (9) and (9) are provided at the outer edge of the finger insertion hole (8) toward the left and right upper corners of the inner wall. The inner wall portions (1a) and (2a) of the side wall or the rear side wall are easily bent, and the operation of raising the inner wall portions (1a) and (2a) can be smoothly performed.

According to the third aspect of the present invention, the gap-forming projections (14) (14) projecting toward the outer walls (1b) and (2b) are formed on the bottom wall overlapping pieces (5) and (5) of the front and rear side walls. ) Is provided, so that the inner wall portions (1a) and (2a) of the front and rear side walls are provided.
A gap is reliably formed between the outer wall portion (1b) and the outer wall portion (2b), and the finger can be easily inserted into the finger insertion hole (8), so that the lifting operation can be performed more quickly. .

According to the fourth aspect of the present invention, since both end edges of the bottom wall overlapping pieces (6) and (6) of the left and right side walls are formed so as to be inclined inwardly, the inner wall portion (1a) ( 2a)
Lifting operation can be performed more smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a packaging paper box according to the present invention.

FIG. 2 is a perspective view of the embodiment of the packaging paper box according to the present invention during disassembly.

3A is a cross-sectional view taken along the line II of FIG. 1, and FIG.
1 is an end view taken along the line II-II, and FIG. 3 (C) is a sectional view taken along the line III-III in FIG.

FIG. 4 is a plan view showing an expanded state of the embodiment of the packaging paper box according to the present invention.

FIG. 5 is a perspective view of a conventional packaging paper box.

FIG. 6 is a perspective view during the disassembly.

[Explanation of symbols]

 A: wrapping paper box 1 ... front side wall 2 ... rear side wall 3 ... left side wall 4 ... right side wall 1a, 2a, 3a, 4a ... inner wall part 1b, 2b, 3b, 4b ... outer wall part 5, 6 ... bottom wall overlapping piece 7 ... Insert piece for connecting reinforcement 8 ... Hole insertion hole 10 ... Bottom wall 11 ... Notch 14 ... Protrusion for gap formation

Claims (4)

[Claims] 1. The front and rear side walls (1) and (2) and the left and right side walls (3) comprising inner and outer double walls (1a) (1b) (2a) (2b)... On four sides of a square bottom wall (10). ) (5) is provided upright, and at least the inner wall portions (3a) of the left and right side walls, respectively.
At both ends of (4a), connecting reinforcing inserts (7) and (7) are connected in series, and the connecting reinforcing inserts (7) and (7) are connected to the inner and outer walls (1a) (1b) (1 2a) and (2b), and the inner wall portions (1a) (2)
a) At both ends of the bottom wall overlap pieces (5) and (5) connected to the lower edge, the inner wall portions (3a) and (4a) of the left and right side walls, the bottom wall overlap pieces (6) and (6) provided at the lower edge 6) In the wrapping paper box in which the box shape is maintained by overlapping the end portions, the inner wall portions (1a) and (2a) of the front and rear side walls correspond to the lower ends of the left and right ends. Bottom wall overlapping pieces on both sides (6)
A wrapping paper box provided with notches (11) and (11) shorter than the width of (6) and a finger insertion hole (8) provided at a lower end in the width direction center. 2. A wrapping paper box according to claim 1, wherein a pair of folds (9) (9) for bending the inner wall is provided at the outer edge of the finger insertion hole (8) toward both right and left upper corners of the inner wall. . 3. A bottom wall superposed piece on both front and rear side walls.
3. The wrapping paper box according to claim 1, further comprising a gap-forming projection (14) (14) projecting toward the outer wall (1b) (2b). 4. The wrapping paper according to claim 1, wherein both end edges of the bottom wall overlap pieces (6) of the left and right side walls are formed to be inclined inwardly. box.