JP2004231254A - Carton for powdery matter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carton for a powdery wherein the lid opening operation is extremely smoothly performed, and in addition, the engaging does not become loose even after the number of times for the opening/closing is increased, and which is equipped with a locking mechanism for preventing a lid part from opening easily even when an external force is applied when not being used or the like. <P>SOLUTION: A tab 12 is projected to face downward at the center of the lower edge of a front board 3B of the lid part 3, and a protruding shape engaging piece 12 is cut on the internal side of the tab 11. At the same time, a horizontal folding ruled line 14 is engraved between the lower ends on the right and the left of the engaging piece 12 and the upper ends on the right and the left of the tab 11. Then, the wholes of the tab 11 and the engaging piece 12 are made freely turnable with the folding ruled line 14 as a pivotal center. On the front surface plate 1A of a box body 1, an engaging hole 5 having a size in which the engaging piece 12 can be inserted is formed at a location corresponding to the engaging piece 12 of the lid part 3. At the same time, on the back surface side of the engaging hole 5, a gap 6 is formed by a front surface flap 4A, and the turning engaging piece 12 is inserted in the engaging hole 5 and the gap 6 by a clasp fastening. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a carton for storing a powder such as a powder detergent.
[0002]
[Prior art]
For example, a carton made of cardboard or a cardboard made of a laminated plastic film is widely used as a container for storing a detergent. Usually, such a carton is composed of a container body having an upper surface opened, and an openable / closable lid that covers the upper surface opening, and when not in use, the lid is a tack seal or an adhesive. At the first use, peel off the tack seal or tear it off, or peel off the part glued with adhesive to rotate the hinge part connecting the lid part and the container body It can be freely opened and closed as a fulcrum. A lock is provided between the lid and the container body to lock the lid in place so that the lid can be easily opened and the detergent inside does not spill or get wet. Generally, a mechanism is provided.
[0003]
As one of the lock mechanisms, for example, as shown in FIGS. 12 and 13, an engaging end 104 including a hole 103 is provided on an outer surface of a front plate 102 of a box body 101, and a full cut line is formed on a front plate 106 of a lid 105. Alternatively, the engaging piece 108 is protruded through a bent portion having the back half-cutting line 107, and when the cover 105 is put on the box body 105, the engaging piece 108 is directed toward the inside of the lid 105 by the full cutting line or the back half-cutting line 107. There is known one that is bent and locked by engaging the bent engaging piece 108 and the engaging end 104 (see Patent Document 1).
[0004]
However, in the case of the lock mechanism having the above structure, when the lid 105 is closed and the lid 105 is opened from the closed state in which the engagement piece 108 and the engagement end 104 are engaged, the lid 105 faces inward. Until the bent engagement piece 108 is pivotally disengaged from the engagement end 104, the engagement between the engagement piece 108 and the engagement end 104 is forcibly performed while pulling up the lid portion 105 with a strong force upward. I can only remove it. For this reason, there was a drawback that the lid opening operation did not go smoothly. Further, as the number of times of opening and closing of the lid 105 increases, the tip of the engaging piece 108 and the edge of the engaging end 104 are worn or damaged, so that the engagement between the two is weakened. Even if it acts, the lid 105 may be easily opened.
[0005]
[Patent Document 1]
JP-A-2002-347775 (all pages, all drawings)
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the above-mentioned problem, and the opening operation is extremely smooth, and the engagement does not become loose even when the number of times of opening and closing increases, and an external force acts when not in use. It is a first object of the present invention to provide a powder carton provided with a lock mechanism that does not easily open the lid. It is a second object of the present invention to provide a powder carton that can smoothly perform not only the opening operation but also the closing operation.
[0007]
[Means for Solving the Problems]
In order to achieve the first object, the present invention provides a powder carton having a box body having an open upper surface and an openable and closable lid for covering the upper surface opening. A knob is protruded downward from the lower edge of the side plate, and a convex engagement piece is cut upward from the horizontal line at a center position on a horizontal line connecting left and right upper ends of the knob. At the same time, a horizontal fold line is engraved between the left and right lower ends of the engaging piece and the left and right upper ends of the knob piece, and the knob and the engaging piece are pivoted about the fold line. Is rotatable in the inward and outward directions of the front plate or the side plate of the lid, and the engaging piece is inserted into the front plate or the side plate of the box body at a position facing the engaging piece of the lid. An engagement hole having a size as large as possible is formed, and a rear side of the engagement hole is provided with a front plate or a side plate. A gap having a predetermined gap dimension is formed by a flap attached to the surface, and by rotating the knob, the engaging piece that rotates integrally with the knob is removed from the engaging hole through the engaging hole. The cover is inserted into the gap on the back with a goby hook to lock the openable and closable lid in place.
[0008]
In addition, the flap for forming the gap is connected to the upper edge of the front plate or the side plate, and the connected flap is formed by folding back the inside of the front plate or the side plate to form the gap. It is preferable that at least a portion covering the engagement hole is folded back along a crease line. Accordingly, the back surface of the engagement hole can have an appropriate bulge, and the engagement piece can be easily inserted into the gap.
[0009]
Further, in order to achieve the second object, the present invention provides a carton for powder having the above configuration, in which a convex hinge piece is cut upward at an upper position of a back plate of a box body, and the hinge piece At the same time as attaching the lid, horizontal fold lines of a predetermined length are engraved on the left and right lower ends of the hinge pieces toward the lower ends of the hinge pieces. Cut a protruding piece downward from the ruled line, and make the projecting piece and the hinge piece rotatable outward with the left and right fold ruled lines as the center of rotation. A back flap is stuck on the wall surface so as to be in contact with the protruding piece.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a first embodiment of a carton for powder according to the present invention.
FIG. 1 is an exploded perspective view of the carton for powder according to the first embodiment, FIG. 2 is an exploded view of a box main body, and FIG. 3 is an exploded view of a lid portion according to the first embodiment. As shown in FIG. 1, the powder carton includes a box body 1 having an upper surface opened, and a lid 3 that covers the upper surface opening 2.
[0011]
The box body 1 has a front plate 1A, a rear plate 1B, two left and right side plates 1C and 1C, and four bottom plates 9 as shown in FIG. As a result, a box-shaped container having an open top as shown in FIG. 1 is obtained.
[0012]
The top opening 2 is provided with a front flap 4A, a back flap 4B, and two left and right side flaps 4C, 4C. These four flaps 4A to 4C are folded inward to form an inner wall of the box body 1. By bonding, the edge of the upper surface opening 2 is strengthened, and the front flap 4A forms a gap 6 having a predetermined gap size on the back side of the engagement hole 5 formed at the upper center position of the front plate 1A. (See FIG. 4).
[0013]
The engagement hole 5 and the gap 6 on the rear surface thereof lock the lid 3 in the closed position by inserting an engagement piece 12 of the lid 3 described later into a hook, and close the lid 3. In the state where it is set, it is formed at a position facing the engagement piece 12. The upper edge 5A of the engagement hole 5 is formed in a downwardly convex arc shape, and the engagement piece 12 inserted into and removed from the engagement hole 5 is guided along this arc, It is designed so that the engagement piece 12 can be inserted into and removed from the engagement hole 5 more smoothly.
[0014]
The four flaps 4A to 4C are folded inward and adhered to the inner wall surface of the box main body 1. At this time, as for the front flap 4A, a portion 6 indicated by a two-dot chain line in FIG. Bonding is performed without applying an agent, so that a gap 6 having a predetermined gap size is formed on the back surface of the engagement hole 5.
[0015]
Further, the front flap 4A is folded back by the normal fold line 7 having no cut in the hatched portion 6 at the time of the above-mentioned back bonding, and the other portions, the back flap 4B, and the left and right two side flaps 4C, 4C are not folded. Each flap is adhered to the inner wall surface of the box body 1 by being folded back from the front side by a half cut line (half cut) 8, which is cut to about half the thickness of the cardboard. This is because the hatched portion 6 has a bulge by being turned back, so that the gap 6 is easily formed on the back surface of the engagement hole 5, and the other portions are sharply bent along the front half cut line 8. This is because a sharp folded edge is formed. In order to form the gap 6 more reliably, a protrusion 20 (see FIG. 4) may be formed at a predetermined position of the front flap 4A by embossing or the like.
[0016]
On the other hand, as shown in FIG. 3, the lid 3 is composed of a top plate 3A, a front plate 3B, two left and right side plates 3C, and a T-shaped hinge plate 3D on the rear side. As shown in FIG. 1, a lid is formed to cover the upper opening 2 of the container body 1, and the hinge plate 3D is rotated by bonding and fixing the hinge plate 3D to the upper outer surface of the back plate 1B of the box body 1. The lid 3 can be freely opened and closed as a fulcrum. The hinge plate 3D has cuts 10 and 10 at the left and right ends, and is hinged to the box body 1 only at the center of the hinge plate 3D, so that the rebound of the lid 3 is suppressed and the container body 1 Even if it is curved and distorted, it can be opened and closed smoothly.
[0017]
A tongue-shaped knob 11 protrudes downward at the center of the lower edge of the front plate 3B, and is located on a horizontal line connecting the upper left and right upper ends 11A, 11A of the knob 11. , An upwardly protruding engagement piece 12 is formed by a cutting line 13. Further, horizontal crease lines 14, 14 are engraved between the left and right lower ends 13A, 13A of the cutting line 13 and the left and right upper ends 11A, 11A of the knob piece 11, respectively. The entire engagement piece 12 is rotatable inward and outward of the front plate 3B around the left and right crease lines 14, 14. The width of the engaging piece 12 is set smaller than the width of the engaging hole 5 so that the engaging piece 12 can enter the engaging hole 5 of the box body 1 when the lid is locked.
[0018]
The powder carton having the above structure is used as follows.
Immediately after purchase, the lid 3 is in an unopened state. As shown in FIG. 4, the lid 3 is covered with the top opening 2 of the box main body 1 by a tack seal (not shown) or an adhesive. It is attached to 1 so that it cannot be opened and closed. Then, at the time of the first use, the lid 3 can be opened and closed about the hinge plate 3D as a center of rotation by peeling off or tearing off the tack seal, or peeling off a portion bonded with an adhesive.
[0019]
In the state of FIG. 4, when the knob 11 is picked up by a finger and lifted upward, the knob 11 rotates upward about the folding lines 14, 14. When the knob piece 11 rotates upward, the engagement piece 13 formed integrally with the knob piece 11 rotates downward about the folding lines 14, 14, and the tip end of the box piece 1 is turned. Into the engagement hole 5 of the first member. If the knob 11 is lifted while being slightly pulled outward during the rotation operation, the front plate 3B of the lid 3 expands outward due to its elasticity. Can be put in.
[0020]
When the knob 11 is pushed back in the original direction, that is, downward, in a state where the engagement piece 12 is inserted into the engagement hole 5, the knob 11 moves the crease lines 14, 14 to the center of rotation. , And the engagement piece 12 rotates upward.
[0021]
When the engagement piece 12 rotates upward, as shown in FIG. 5, the tip of the engagement piece 12 enters so as to be inserted into the gap 6 on the back surface of the engagement hole 5, The cover 3 is locked in this position by being inserted into the engagement hole 5 and the gap 6 on the rear surface thereof in a so-called hanging manner.
[0022]
Therefore, as is apparent from FIG. 5, the engaging piece 12 is inserted into the gap 6 between the engaging hole 5 and the back surface thereof in the form of a blanket. The lid 3 can be reliably and stably locked at the lid closing position.
[0023]
On the other hand, in order to open the locked lid 3, it is sufficient to hold the knob 11 with a finger in the state of FIG. 5 and lift the knob 11 upward to at least a horizontal or higher position. As a result, the engaging piece 12 is rotated in the gap 6 with the engaging hole 5 to a horizontal or lower position as shown in FIG.
[0024]
When the knob piece 11 is further pulled upward in the state of FIG. 6, the engagement piece 12 naturally comes out of the engagement hole 5 and the gap 6 as it is, The lock is released. Therefore, the lid 3 can be freely opened using the hinge plate 3D (see FIG. 1) on the back of the lid as a pivot point. Also in the case of this lid opening operation, if the knob 11 is lifted by slightly pulling it outward, the front plate 3B of the lid 3 expands outward due to its elasticity. It can be easily rotated to the state shown in FIG. 6 in the hole 5 and the gap 6.
[0025]
As described above, in the case of the powder carton according to the first embodiment, the lid can be reliably and stably locked, and the lid can be opened very smoothly even when the lid is opened. it can.
[0026]
In the first embodiment, the knob piece 11 and the engagement piece 12 are formed on the lower edge of the front plate 3B of the lid 3, but the lower edges of the left and right side plates 3C, 3C of the lid 3 are formed. And the corresponding engaging holes 5 may be formed at the upper positions of the left and right side plates 1C of the box body 1.
[0027]
7 to 9 show a second embodiment of the powder carton according to the present invention.
FIG. 7 is an exploded perspective view of a carton for powder according to the second embodiment, FIG. 8 is a developed view of a box main body, and FIG. 9 is a developed view of a lid. The basic structure of the carton for powder according to the second embodiment is the same as that of the carton for powder according to the first embodiment described above. The only difference is the structure of the hinge mechanism for freely opening and closing the hinge mechanism. Therefore, the same or equivalent parts as those of the first embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and only different parts will be described.
[0028]
In the case of the second embodiment, a flat rear plate 3F is formed on the back surface of the lid 3 in place of the T-shaped hinge plate 3D in the first embodiment, and four rounds of the top plate 3A are formed. Is a box-shaped lid surrounded by a side wall. A hinge piece 15 is cut by a cutting line 16 at an upper position of the rear plate 1B of the box main body 1 facing the rear plate 3F, and can be opened and closed using the crease lines 17 at the lower right and left as pivot points. A protruding piece 18 projecting below the fold line 17 is cut by a cutting line 19 at an intermediate position between the left and right fold lines 17, 17. The hinge 3 is bonded to the inner wall surface of the rear plate 3F of the lid 3 so that the lid 3 is rotatably covered on the upper opening 2 of the box body 1.
[0029]
In the above configuration, when the lid portion 3 is opened by the same lid opening operation as in the first embodiment described above, the hinge piece 15 pivots rearward with the left and right crease lines 17, 17 as pivots. The lid 3 is opened in a state as shown in FIG. At this time, the projecting piece 18 projecting downward hits the back flap 4B of the box body 1 and acts to push the lid back in the original direction by the rebound. Therefore, the lid 3 is constantly urged in the lid closing direction by this repulsive force, so that the lid closing operation after taking out the contents such as the powder detergent can be performed more smoothly.
[0030]
FIG. 11 shows a modification of the lid 3 according to the second embodiment.
The lid 3 according to this modified example has cuts 22 formed at left and right positions of an adhesive 21 applied to the inner wall surface of the rear plate 3F. The lid 3 in the second embodiment is a box-shaped lid surrounding four sides of the top plate 3A with side walls, and the inner wall surface of the rear plate 3F is formed on the back plate 1B of the box body 1 with hinge pieces 15 formed on the back plate 1B. However, when there is no cut 22, the rear plate 3F is attached to the rear plate 1B in order to press the rear plate 3F of the lid 3 against the hinge piece 15 of the rear plate 1B of the box body 1. Even if pressed toward the rear, the rear plate 3F cannot be sufficiently pushed in due to the large rigidity of the lid corners at the left and right ends. For this reason, a large pressing force and a long bonding time are required to realize the reliable bonding of the lid 3. On the other hand, if the cuts 22 are formed at the left and right positions of the adhesive 21 as described above, it is possible to press only the adhesive 21 and press the hinge 21 with the cuts 22. For this reason, the bonding operation becomes simpler and more reliable, and the operation time can be shortened to speed up the assembly operation.
[0031]
Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and it goes without saying that various modifications and changes can be made without departing from the gist of the invention.
[0032]
【The invention's effect】
According to the first aspect of the present invention, a knob and a rotating piece are formed on the lid portion, and the engaging piece is turned into the gap between the engaging hole on the box body side and the back surface by rotating the knob. The cover can be securely locked because it is inserted into the hanger.The opening operation is extremely smooth. It is possible to provide a carton for powder that does not easily open the lid even when an external force acts on the carton.
[0033]
According to the second aspect of the present invention, a gap is formed by folding inward a flap connected to the upper edge of the front plate or the side plate, and at the time of the folding, at least a portion covering the engagement hole. Is folded back by a crease line, so that the back surface of the engagement hole can have an appropriate bulge, and the insertion of the engagement piece becomes easier and smoother.
[0034]
According to the third aspect of the present invention, in addition to the above effects, the lid is connected to the box main body so as to be openable and closable by the hinge piece and the projecting piece formed on the back plate of the box main body. The part can always be biased in the lid closing direction, and the lid closing operation can be performed more smoothly.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a carton for powder according to a first embodiment.
FIG. 2 is an exploded view of a box main body of the carton for powder according to the first embodiment.
FIG. 3 is a development view of a lid part of the carton for powder according to the first embodiment.
FIG. 4 is an explanatory view of a method of using the powder carton according to the first embodiment, wherein (a) is an enlarged perspective view of a knob piece and an engagement piece when not in a locked state, (b) FIG. 4 is an enlarged sectional view of a knob piece, an engagement piece, and an engagement hole portion when not in a locked state.
5A and 5B are explanatory views of a method of using the carton for powder according to the first embodiment, wherein FIG. 5A is an enlarged perspective view of a knob piece and an engagement piece in a locked state, and FIG. It is an expanded sectional view of a knob piece, an engagement piece, and an engagement hole part at the time of a lock state.
6A and 6B are explanatory views of a method of using the carton for powder according to the first embodiment, wherein FIG. 6A is an enlarged perspective view of a knob piece and an engagement piece during an unlocking operation, and FIG. It is an expanded sectional view of a knob piece, an engagement piece, and an engagement hole part at the time of a lock release operation.
FIG. 7 is an exploded perspective view of a powder carton according to a second embodiment.
FIG. 8 is an exploded view of the box body of the carton for powder according to the second embodiment.
FIG. 9 is a development view of a lid part of the powder carton according to the second embodiment.
FIG. 10 is an enlarged sectional view of a hinge mechanism portion of the powder carton according to the second embodiment.
FIG. 11 is a perspective view showing a modification of the lid.
FIG. 12 is a perspective view of a conventional powder carton.
FIG. 13 is an enlarged cross-sectional view of a lock mechanism portion in a conventional powder carton.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 Box body 1A Front plate 1B Back plate 2 Top opening 3 Cover 3A Top plate 3B Front plate 3C Side plate 3D Hinge plate 3F Rear plate 4A Front flap 4B Back flap 5 Engagement hole 5A Upper edge 6 of engagement hole 7 Folded ruled line 8 Front half cut line 10 Notch 11 Knob piece 12 Engagement piece 13 Cutting line 14 Folded line 15 Hinge piece 16 Cutting line 17 Folded line 18 Protruding piece 19 Cutting line 21 Adhesive 22 Break

Claims (3)

In a carton for powder having a box body having an open upper surface and an openable and closable lid covering the upper surface opening,
A tab is protruded downward at the lower edge of the front plate or side plate of the lid,
At the center position on the horizontal line connecting the left and right upper ends of the knob pieces, a convex engagement piece is cut upward from the horizontal line, and the left and right lower ends of the engagement piece are cut. A horizontal fold line is engraved between the left and right upper end portions of the knob piece, and the entire knob piece and the engagement piece are formed on the front plate or the side plate of the lid portion around the fold line as a rotation center. It is free to rotate in and out,
The front plate or the side plate of the box main body is formed with an engagement hole of a size that allows the engagement piece to be inserted at a position facing the engagement piece of the lid portion. On the back side, a gap having a predetermined gap size is formed by a flap attached to the inner wall surface of the front plate or the side plate,
By rotating the knob piece, the engaging piece that rotates integrally with the knob piece is inserted into the gap on the back from the engagement hole into a goby hook, and the openable and closable lid is fixed. A carton for powder, characterized in that the carton is locked to the carton. The carton for powder according to claim 1,
A flap for forming the gap is connected to an upper edge portion of the front plate or the side plate, and the gap is formed by folding the connected flap to the inside of the front plate or the side plate. A powder carton, wherein a portion covering the engagement hole is folded back along a crease line. The carton for powder according to claim 1,
A convex hinge piece is cut upward at the upper position of the back plate of the box body,
A lid is attached to the hinge piece, and horizontal fold lines of a predetermined length are engraved toward the lower ends of the right and left lower ends of the hinge piece,
At the middle position between the left and right crease lines, a protruding protruding piece is cut downward from the crease line. A carton for powder, wherein the carton is rotatable toward the rear surface and a back flap is attached to an inner wall surface of the back plate so as to be in contact with the protruding piece.

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