JPH09183434A - Sealed container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealed container whose roof board can be unsealed at three parts to any size arbitrarily by weak stabilized force smoothly and sealed again and which is economical with cardboard in use being small in area. SOLUTION: With a trunk part of a seal-end carton as the roof board 1 two half-cut lines 8, 8', half cut from the front and the back in staggered phases, are provided on two sides of the roof board 1. Furthermore, a half cut line 9 half cut from the front is provided along the upper end edge of the front-side wall panel 4 consisting of an overlaid trunk part and a half cut line 9' half cut from the back is provided between a pasting part 7 and a scattering- preventing flap. By raising an unsealing piece the roof board is unsealed at three parts and fastened by inserting a pulling end S of an unsealing piece into a fastening strip B in the middle of the front-side wall panel 4 where there is a recession E.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an easily openable and easily resealable sealed container.

[0002]

2. Description of the Related Art A rectangular parallelepiped sealed container represented by a small powder detergent carton is required to have moisture resistance, prevention of scattering of contents, full openness of head during use, and low cost. A sealed container having rounded corners is generally used. As a practical example, FIG.
As shown in (a), the open end of the body portion 11 is internally sealed with a glassine paper 12 or the like having a sealing property to provide moisture resistance and content scattering prevention property, and a cover with a hinge that can be fully opened. The sealed container 30A to which 13 is attached can be mentioned. As another practical example, as shown in FIG. 7 (b), only the outer wall panel of the double body is strip-shaped tearing piece 1.
An example is a hermetically sealed container 30B in which the body 4 and the cover 13 are separated by horizontally tearing and removing 4 so that the contents can be immediately taken out. Further, although it has a covering lid similar to that shown in FIG. 7A, the inner side is not sealed, the opening side is extended, the flap folded inward is adhered to the lid top plate, and the opening side is opened at the time of opening. Japanese Utility Model Publication No. 7-14188 proposes a container in which a flap is separated by a double half-cut line provided along the line. On the other hand, the main flap at the seal end of the carton is separated from the body by a strip-shaped tear piece, and then the side flap is separated by a double weakening line to open the container.
It is proposed in Japanese Patent Publication No. 9653.

[0003]

However, the conventional sealed container has a problem in that the initial opening means is complicated and it is difficult for the elderly and handicapped people to open the container. In addition, when the container is once opened, many of the lids are not securely locked, and there is a problem that the contents are scattered when the container is turned upside down. Generally, when trying to achieve both the sealing property and the easy-opening property, the structure becomes complicated, the amount of packaging material used increases, the cost increases, and a complicated molding and filling machine must be newly installed. Problem. Further, there is a problem that the inner seal member, the tear pieces, etc. are separated when the package is opened to generate dust. The present invention has been made in view of the above-mentioned problems, and can be easily opened and resealed without applying force with a simple operation, the conventional molding and filling machine can be diverted as it is, and dust is generated. It is an object of the present invention to provide a carton that is economical and has a tight sealing property with the minimum required paperboard.

[0004]

SUMMARY OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, provides a locking strip, an opening panel, a top plate,
The rear side wall panel, the bottom plate, the front side wall panel, the shatterproof flap, and the glue margin piece are connected in a row in this order through fold lines, and the main folded piece is provided on both sides of the front side wall panel and the rear side wall panel through fold lines. The opening panel back surface and the front side wall panel surface, which are connected to each other, have the folding strips of the carton blank formed by previously connecting the sub-folding pieces to each other on both sides of the top plate and the bottom plate via folding lines. Partially adhered, and at the same time, the front surface of the adhesive margin piece and the opposite portion of the back surface of the top plate are adhered to form a body, and the main folded piece at both open ends of the obtained tubular body,
A carton formed by folding the auxiliary folding piece, the separating means separating the top plate from the body attaching portion to an arbitrary width, and the peeling means separating the top plate from the opening attaching piece in the body attaching portion. A gist of a hermetically sealed container is characterized in that a zipper provided on the unsealing panel and locking means for locking the unsealing piece defined by a cut line in the original position are provided. The separating means is provided on the left and right fold lines connecting the top plate and the auxiliary folding piece or on the top plate along the fold lines, and is connected to the zipper on the opening panel, and the top plate surface The two left and right first half-cut lines which are half-cut from the first half-cut line and the first half-cut line are parallel to the first half-cut line at a predetermined interval, The first half-cut line and the zipper intersect on a fold line that connects the unsealing panel, and the second half-cut line includes two left and right half-cuts that are half-cut from the back surface of the top plate. A third half-cut line provided near the upper edge of the front side wall panel, the end of which intersects the zipper at the upper edge of the front side wall panel, and is half-cut from the surface, the shatterproof flap, and the glue allowance. A fourth half-cut line half-cut from the back surface provided between the locking means and the opening gripping piece at the tip of the opening piece, and a recess formed in the central upper portion of the front side wall panel. And the locking strip that crosses the recess.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a development view of a carton blank of a sealed container according to the present invention. As shown in FIG. 1, the carton blank 10 includes a locking strip B, an opening panel 5, a top plate 1, a rear side wall panel 2, a bottom plate 3, a front side wall panel 4, a shatterproof flap 6, and a glue strip 7. The main folding pieces 2 ', 4'are connected in a line in order via the folding lines af and the fourth half-cut line 9', and on both sides of the rear side wall panel 2 and the front side wall panel 4 via folding lines g, h. Subfolding pieces 1'and 3'are connected to both sides of the top plate 1 and the bottom plate 3 via folding lines g and h. This blank 1
In order to mold a sealed container according to the invention from scratch, first of all
As a step, the locking strip B is folded back inward along the folding line a, and is bonded except for the central portion of the locking strip B facing the knob S provided on the unsealing panel 5. As a second step, the blank is folded in three along the folding lines c and e so that the opening panel 5 is on the front side wall panel 4,
The rear surface of the unsealed panel and the front surface of the front side wall panel are partially adhered to each other to be stuck on the body. That is, only the cut line C on the unsealing panel 5 and the outer part of the unsealing piece P defined by the zipper J, the part facing the fold line f at the upper edge of the front side wall panel and the part surrounded by the third half cut line 9 are bonded. To be done. At the same time, the front surface of the adhesive margin piece 7 and the opposing portion of the back surface of the top plate 1 are bonded together. The "body bonding part" where the body bonding described above is performed is shown in FIG.
In D. When the folded sleeve thus obtained is fed to a molding and filling machine for a normal seal end carton, the folded sleeve is first raised up in a square pole shape, and one of the folding pieces 1 to 4 is folded, so that the contents are After filling, the other folded piece 1'-
4'is folded and so-called end-sealed to complete the sealed container 20 according to the present invention. The perspective view is shown in FIG.
Indicated by

FIG. 2 is an explanatory view of opening and resealing of the hermetically sealed container according to the present invention. In order to open the sealed container 20 according to the present invention shown in FIG. 2 (a), when the opening knob piece S surrounded by the cut line C is picked and lifted up, the opening piece P is moved along the zipper J to the front side wall. The upper edge of the panel 4 is torn obliquely. As described above, only the upper end portion of the unsealing piece P is adhered, and the delamination of the paperboard, which will be described later, will not occur.
It is designed to start from the half-cut line 9. When the unsealing piece P is further lifted upward, as shown in FIG. 2B, the delamination is continued while the top plate 1 is separated by the separating means of the top plate 1 on both sides of the top plate 1 which will be described later. At the fourth half-cut line provided between the adhesive margin piece 7 and the shatterproof flap 6, delamination is stopped. If the lifting is further continued, the separation on both sides of the top plate 1 reaches the rear end portion of the top plate 1 and the top plate 1 can be largely opened. The rear edge fold line c of the top plate 1 is the top plate 1.
Function as an opening and closing hinge.

Hereinafter, the means for separating the top plate 1 of the hermetically sealed container according to the present invention will be described with reference to FIGS. 1, 2 (b) and 3 (a).
This will be described in detail with reference to (c). FIG. 3 is a cross-sectional explanatory view of a top plate separating means. First, the separation on both sides of the top plate 1 is the first half cut from the surface of the blank.
It is performed by combining the half-cut line 8 and the second half-cut line 8'half-cut from the back surface of the blank. The first half-cut line 8 may be provided on the folding lines g and h, or may be provided inside the top plate 1, and need not necessarily be provided at symmetrical positions. Since the half-cut line has the same effect as the broken line, the broken line may be omitted when it is provided very close to the broken line. This first
A second half-cut line 8'half-cut from the back surface is provided inside the half-cut line 8 at an interval of 3 to 10 mm. However, these two half-cut lines 8 and 8'must intersect at the final point K of the zipper J (the front corner of the top plate 1 in FIG. 1). By doing this,
It is possible to start from both sides of the top plate 1 at the point K and separate them while forming a delamination zone having a substantially constant width. FIG. 2 (b)
In Fig. 5, the delaminated surface is indicated by dots. FIG. 3A is a ww cross section of the blank 10 showing the positional relationship between the first and second half-cut lines 8 and 8 ′.
And the second half-cut lines 8 and 8'are provided by being half-cut from the front and back with a predetermined interval. FIG. 3B is an xx cross section of the top plate 1 separated in FIG. 2B, and the delamination film M having a thickness approximately half that of the blank remains on both sides of the top plate 1. Figure 3 (c)
2B is an yy cross section in FIG. 2B, and the interlayer peeling film M peeled from both sides of the top plate 1 remains on the upper end of the sub-folding piece 1 ′. It is desirable that the depth of the above half cut reaches at least the middle layer of the paperboard used for the carton blank. This half cut line 8, 8 '
Since they are provided with a phase, they do not interfere with the sealability of the seal end carton. Generally, when delamination of a laminated portion is caused by hand, resistance is felt at the time of delamination. However, as far as the top plate 1 is cut off, delamination starts from the point K where the two half-cut lines are connected, so the top plate 1 can be smoothly opened with almost uniform force without feeling any momentary resistance. can do.

Next, the means for peeling off the unsealed piece P and the top plate 1 in the body sticking portion D will be described. This peeling is performed in connection with tearing of the opening piece P by the zipper J. When the unsealing piece P is lifted up, next to the zipper J, the third half-cut line 9 half-cut from the surface of the blank provided on the upper end of the front side wall panel 4 and the glue adhered to the back surface of the top plate 1. Between the margin 7 and the fourth half-cut line 9 ′ half-cut from the back surface between the scattering prevention flaps 6, delamination is caused by delamination of the paperboard. The pattern becomes clear from FIG. 4, which is a cross-sectional explanatory view of the means for peeling off the top plate in the body attachment portion. That is, in the same figure, the X mark indicates the adhesive layer. Since the upper end portion of the front side wall panel 4 and the upper end portion of the unsealing piece P are bonded to each other, when the unsealing piece P is lifted, the third half cut line 9
Then, delamination occurs with a predetermined width of the unsealed piece P, and this delamination ends at the fourth half-cut line 9 ', at which point the top plate is completely peeled off in the state shown in FIG. 4 (b).
The third half-cut line 9 does not have to be a straight line as shown in FIGS. 1 and 2 (b), and it is V-shaped, U-shaped so that it becomes larger in the middle between the third half-cut line 9 ′ and the fourth half-cut line 9 ′. It may be curved like a letter shape. This means can prevent not only the top plate 1 from being peeled off but also the scattering of powder at the time of opening due to the powdered contents entering between the double carton blanks in the body sticking portion D. Further, it has the effect of enhancing the sealing property at the point K from the carton structure surface where the body sticking portion D is extended.

Next, the locking means will be described. FIG.
2 (c) is a perspective view of a state in which locking is performed in the case of resealing, and FIG. 5 is a cross-sectional explanatory view of the locking portion.
The zz cross section of (c) is shown. As shown in FIG. 2C, the gripping strip S used to tear the zipper J once is used as a plugging piece, and the locking strip B and the front side wall panel 4 are provided on the central upper portion of the front side wall panel 4. Insert it in between and lock it. In this case, a recessed portion E is formed by embossing when viewed from the surface in the upper center part of the front side wall panel so that the tip of the knob piece S can easily pass through this gap. The positional relationship of the respective parts in the locked state will be further clarified by FIG. Both ends of the locking strip B are firmly adhered to the front side wall panel 4, but the middle portion is not adhered, so that a gap is generated and the engagement by the above insertion is possible.

FIG. 6 is a variation explanatory view of the positions of the zipper J and the first and second half cut lines. As shown in FIGS. 6 (a) and 6 (b), the top plate 1 does not necessarily have to be opened to the full width of the top plate 1 as shown in FIG. Can be opened from the position. Further, as shown in FIG. 6C, the tearing by the zipper does not necessarily have to be performed symmetrically, and the knob may be shifted to the left or right. Rather, this results in the interlayer peeling from the third half-cut line provided on the upper part of the front side wall panel in order from one side, so that the peeling resistance is softened and the unsealing can be performed with a weaker force.

The hermetically sealed container 20 according to the present invention includes a panel corresponding to a body portion of a normal seal end carton and a body pasting portion D.
It is to be opened from the above, and as described above, it is necessary to provide an adhesive portion and a non-adhesive portion in this portion in respective predetermined patterns. Further, it is necessary to perform this partial adhesion at the same time in the sack attaching step. However, when printing the surface of the carton blank, the problem is that if OP varnish is provided in the non-adhesive part and the OP varnish is removed in the adhesive part, the OP varnish acts as a peeling layer. As described above, a method of supplying the adhesive to the entire body-applied portion by a normal applicator roll can be used and solved.

As the paperboard used in the hermetically sealed container 20 according to the present invention, almost any paperboard can be used as long as it is a paperboard which is laminated in multiple layers by an ordinary circular net paper machine. Ordinary cold glue is sufficient as the adhesive used for the body bonding described above. Printing on the surface may be performed by any known method such as offset printing and gravure printing. Also,
The folded carton sleeve is no different from the conventional seal end carton, and can be used as it is in a normal molding, filling and sealing machine.

[0013]

EXAMPLE In order to apply the hermetically sealed container according to the present invention to a small household powder detergent, the container size is 91 mm in height and 15 in width.
A rectangular parallelepiped sealed container having a depth of 0 mm, a depth of 90 mm, and an internal capacity of 1,200 g (about 1,400 cc) was prototyped.
Further, the height of the unsealing panel was set to 41 mm, and an example sample in which the whole top plate shown in FIG. As a paperboard for the carton blank 10, Neosand 605 g / m ² manufactured by Honshu Paper Co., Ltd. was used. The sealed container 20 according to the present invention was prototyped according to the above specifications, and includes the elderly and children.
Opening and resealing tests were performed by 0 panelists, but it was confirmed that the top plate could be opened stably without feeling resistance and could be easily reopened. Further, the powder detergent did not scatter when opened, and even when the resealed product was knocked down, there was little spillage of the powder from the gap between the top plate and the body.

[0014]

EFFECTS OF THE INVENTION According to the present invention, by combining half-cut lines, which are half-cut from the front and back sides of the portion corresponding to the body panel of the end-seal carton, the hinged lid can have any size. It can be easily opened and the contents can be taken out very easily when it is fully opened. It can also be easily and securely resealed. The strip-shaped delamination film M left around the opening has an effect of preventing the top plate from falling into the inside at the time of resealing, and also prevents the powder in the contents from spilling. Since the powder inside does not wrap around the body sticking part, it is possible to prevent the powder from scattering during opening. Further, by providing the shatterproof flap, the sealing performance at the carton corner is improved. The hermetically sealed container according to the present invention is single except for the side plate and the body-attached portion, and it is possible to reduce the use area of the paperboard to a necessary minimum and to reduce the cost.
Further, the existing molding and filling machine can be used as it is, and there is no need to newly invest in equipment. Furthermore, 1
Since it is a 00% paper container, it has good disposability or recyclability after use.

[Brief description of the drawings]

FIG. 1 is a development view of a carton blank of a sealed container according to the present invention.

FIG. 2 is an explanatory view of opening and resealing of a sealed container according to the present invention.

FIG. 3 is an explanatory cross-sectional view of a top plate separating means.

FIG. 4 is an explanatory cross-sectional view of a means for peeling off the top plate in the body attachment portion.

FIG. 5 is an explanatory cross-sectional view of a resealing locking portion.

FIG. 6 is a variation explanatory view of the positions of the zipper and the first and second half cut lines.

FIG. 7 is a perspective view of a conventional sealed container

[Explanation of symbols]

 1 Top Plate 2 Rear Side Wall Panel 3 Bottom Plate 4 Front Side Wall Panel 5 Opening Panel 6 Scatter Prevention Flap 7 Adhesive Piece 8 First Half-Cut Line Half-cut from the Surface 8'Second Half-cut Line Half-cut from the Backside 9 Third half-cut line half cut from the front side 9'Fourth half-cut line half cut from the back side 10 Carton blank of the hermetically sealed container according to the present invention 11 Carton body section 12 Inner seal 13 Cover lid 14 Zipper peeling section 20 pieces Sealed container according to the invention 30A Conventional sealed container 30B Conventional sealed container a to h Folded line B Locking strip C Cut line D Body sticking part E Recessed part due to embossing M Delamination film S Knocking piece / inserting piece P Opening piece

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoichi Mochizuki 1-1-1 Ichigaya-Kagacho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd.

Claims (4)

[Claims] 1. A locking strip, an opening panel, a top plate, a rear side wall panel, a bottom plate, a front side wall panel, a shatterproof flap,
The glue margin pieces are connected in a line in this order through fold lines, the main folding pieces are connected to both sides of the front side wall panel and the rear side wall panel via fold lines, and fold lines are connected to both sides of the top plate and the bottom plate. The front side wall panel surface and the unsealing panel back surface where the locking strips of the carton blank in which the sub-folding pieces are connected through are previously folded back are partially bonded, and at the same time, the front surface of the adhesive margin piece. A carton formed by folding and molding the main folding piece and the sub folding piece of both open ends of the obtained tubular body by bonding and bonding the opposite portion of the back surface of the top plate to each other, Separation means for separating the top plate to an arbitrary width from the body sticking part, peeling means for peeling off the top plate after the opening piece in the body sticking part, and a zipper provided on the opening panel. Sealed container, wherein a locking means for locking the opening piece which is defined by a line to its original position is provided. 2. The separating means is provided on both left and right fold lines connecting the top plate and the sub-folding piece or on the top plate along the fold lines, and is connected to a zipper on the opening panel, Further, two left and right first half-cut lines half-cut from the top plate surface and inside the first half-cut line are parallel to the first half-cut line with a predetermined interval. The first half-cut line intersects with the zipper on a fold line connecting the top plate and the unsealing panel, and is composed of two left and right second half-cut lines half-cut from the back surface of the top plate. The sealed container according to claim 1. 3. A third half cut, wherein the peeling means is provided near the upper edge of the front side wall panel, the end portion intersects with the zipper at the upper edge of the front side wall panel, and is half-cut from the surface. The sealed container according to claim 1, wherein the sealed container comprises a line, the scattering prevention flap, and a fourth half-cut line half-cut from the back surface provided between the adhesive margin pieces. 4. The locking means comprises an unsealing knob piece at the end of the unsealing piece, a recessed portion formed in the central upper portion of the front side wall panel, and the locking strip-shaped piece crossing the recessed portion. The sealed container according to claim 1, wherein: