JPH0650358Y2 - Powder packaging container - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is designed to prevent leakage of stored items, such as powdered laundry detergent, fresh food, etc., and diffusion of the scent and odor peculiar to the stored items. The present invention relates to a powder packaging container.

[Conventional technology]

Conventionally, generally known powder packaging containers suitable for storing detergents are classified into a so-called 4-flap / glue-seal type and a molding bottom type as shown in Japanese Patent Laid-Open No. 58-193248. Be separated.

[Problems to be solved by the invention]

The former is, for example, a container containing laundry detergent,
Because it is often used as a household item,
After opening the container, it is troublesome to transfer it to another hermetically sealed container, and external vibration or the like causes some leakage of the detergent and diffusion of its scent, so that it is in the vicinity of the place where the container is stored. There is a problem that it adheres to other articles and the scent is always unpleasant, and it has been urged to solve it.

In addition, the scent of the container can be observed to be diffused at the time of display at the store before opening and at the time of storage at home for storage. Reasons for this include leakage of scent from a through-hole for retaining studs formed to attach the proximal end portion of the handle to the container, defective sticking flap, and insufficient barrier resistance due to the material of the container body.

Up to now, there have been few proposals that have been particularly devised as a solution for leakage prevention at the four corners of the four-flap carton,
Most of the work is done by making the glued area of the four flaps as wide as possible, increasing the crimping area, and equipping the carton with a so-called inro to secure the crimping. However, it still does not completely prevent leakage.

Furthermore, looking at the more compact detergent containers of recent years, both ends of the handle are attached to the upper part of the body part to make it convenient to carry. It is necessary to make a hole in the hole, and the scent of the above-mentioned detergent is liable to come from before the opening, or the resealing after opening is not complete, resulting in deterioration of quality.

In addition, the latter molded bottom type container does not have the inconvenience of the former, but since the material of the container is synthetic resin, it is not easy to cut the tear strip and the disposal of the used container causes pollution. It is said to be a problem.

Moreover, in the latter case, since the manufacturing facility becomes large, there is a problem in printability, and a special printing method is required,
It is considered impossible to manufacture the final container at lower cost than the former.

The present invention is to solve the problems inherent in the above-mentioned conventional techniques, and the purpose thereof is to prevent the leakage of powdered contents and the release of fragrance, thereby improving the production efficiency and the production. It aims to propose a powder packaging container which is economical in cost and convenient in use.

[Means for Solving the Problems]

To specifically describe the configuration of the present invention for achieving the above-mentioned object, folding pieces that are folded back to the outside are consecutively provided at the upper opening peripheral edge of a bottomed rectangular cylinder made of impermeable paperboard, and the folding pieces A container body formed by sticking a moisture-proof film to the folded surface and sealing the upper opening: a handle attachment portion is provided opposite the upper edge, and the folded piece can be fitted and sandwiched at the outer periphery of the folded opening. Reverse L
A molded lid body having a V-shaped cross section, and further comprising a frame-shaped portion inside the lower edge of the outer peripheral surface, to which a claw portion for engaging with the lower edge of the folded piece is attached, and a cover lid portion for resealing. It is a powder packaging container characterized by consisting of, and folding flaps are respectively provided continuously at the peripheral edge of the lower opening of the rectangular tubular body, and the moistureproof film covering each folding flap is adhered by sealing the lower opening. The powder packaging container is characterized in that the folding flaps are folded in this state to form a container body having a bottom portion.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 of the drawings shows a state in which the lid is opened, and an enlarged explanatory view of a main part at an opening peripheral edge of the container body, FIGS. 2 to 5 show a manufacturing sequence, and FIGS. FIG. 6 is a perspective view showing a state before and after composition of the bottom portion of the container body, FIG. 4 is a perspective view showing a process of manufacturing the periphery of the opening of the container body, and FIG. 5 is a perspective view showing the relationship between the lid body and the container body. The figure is a perspective view showing a completed assembly state.

Reference numeral A denotes a container body, which is assembled and formed by using an impermeable paperboard, and a folding piece 2 is continuously provided at a peripheral edge of an upper opening of a square tubular body 1 having a bottom (see FIG. 3).

In addition, as the impermeable paperboard, polyethylene in the middle layer,
Various composite materials having barrier properties can be used, such as paperboard with wax, vinylidene chloride or the like intervening, and coated cardboard with aluminum foil or various films laminated thereon. In the description, the terms impermeability and barrier property are used interchangeably,
It has the property of suppressing the permeation of water, oil, water vapor, gas, and scent.

Reference numeral 3 is a folding flap composed of four sheets which are continuously provided on the peripheral edge of the lower opening of the rectangular tubular body 1 to form a bottom portion.

Reference numeral 4 denotes a moisture-proof film, which is attached to the periphery of the opening by means such as hot melt so as to seal the openings above and below the rectangular tube 1.

The moisture-proof film is attached to the folded surface of the folding piece 2 on the upper opening peripheral edge of the rectangular tube 1, and the moisture-proof film is attached to the folded opening 3 near the folding line on the lower opening peripheral edge.

As the moisture-proof film 4, at least a film having moisture-proof property may be used, but a single aluminum foil or a composite material obtained by coating and laminating various resins can be used, and a film mainly composed of aluminum foil can be opened, moisture-proof and moisture-proof. Excellent barrier properties such as fragrance.

Next, the assembling procedure will be described. After attaching the moisture-proof film 4 to the periphery of the lower opening of the rectangular tubular body 1 so as to seal the opening and reach the respective flaps 3, the folding flaps 3 are sequentially appropriately folded inwardly. It is sealed and the bottom is formed (see FIGS. 2 and 4).

In FIG. 3 and FIG. 4, after the powdery substance such as detergent is filled, the moisture-proof film 4 is attached to the folded surface of each of the folded pieces 2 folded outward (see FIG. 4), and then the corner Cylinder 1
The peripheral edge of the upper opening is formed in a tight double structure (see the enlarged explanatory view of the main part of FIG. 1).

The moisture-proof film 4 that seals the peripheral edge of the upper opening is preferably attached to the folding piece 2 in a state in which the slack that is pushed inward by the lower edge of the inner peripheral wall 5b of the frame-shaped portion 5 described below is retained. The slack naturally disappears when the frame-shaped portion 5 is fitted, and conversely forms a moisture-proof film having a constant tension.

B is a molding lid body formed by injection molding with polypropylene or the like, and 5 is a frame-shaped portion having an inverted L-shaped cross section, which is composed of an outer peripheral wall 5a, an inner peripheral wall 5b, and an upper peripheral wall 5c as shown in the first illustration, The folded piece 2 to which the moisture-proof film 4 is adhered is folded back, and the peripheral edge of the upper opening of the rectangular tubular body 1 formed in a double structure is pushed from above to be fitted and clamped. If necessary, the fitting and holding may be performed via an adhesive. Reference numeral 6 denotes a claw portion attached to the inside of the lower edge of the frame-shaped portion 5, which is locked to the lower end of the folded piece 2 of the double structure and reliably prevents the lid B from being unintentionally detached. Once the lid B is fitted with the frame-shaped portion 5,
The lower end of the folded piece 2 is securely locked by the claw portion 6, and the fitting is not released unless the folded piece 2 is reversed upward. Reference numeral 7 is a mounting portion for a separate handle C that is also attached to the upper edge of the frame-shaped portion 5, and is integrally formed with the frame-shaped body 5.
Reference numeral 8 denotes a cover portion, which is connected to one side edge of the frame-shaped portion 5 via a hinge portion 9 in the drawing. Note that, instead of adopting the hinge portion 9, the cover lid portion 8 may be a separate body.
The cover 8 is used for resealing, and a known fitting means can be used for the fitting structure with the frame-shaped portion 5.

Further, the illustrated example shows a case where a void portion is formed on the inner surface of the cover portion 8 by pushing the inner peripheral surface wall 5b of the frame-shaped portion 5, but it is necessary to take out powdered detergent etc. of the stored items at the start of use.
It is convenient to install a measuring cup 10 with a cutter 10a that can also be used to cut out the moisture-proof film 4, can store various catalogs, prizes, etc., and to further increase the storage space, cover lid 8 can be used. It may be formed into a convex shape.

With the container assembled as described above, open the cover 8 and take out the measuring cup 10 with a cutter inside,
The moisture proof film 4 is opened by placing the cutter 10a attached to the measuring cup 10 along the inner peripheral wall 5b of the frame-shaped portion 5. After opening the film, it can be resealed by the cover 8.

[Effect of device]

The present invention having the above-mentioned configuration has the following effects.

First, since the impermeable paperboard is used for the rectangular tube body 1 of the container body A, and the moisture-proof film 4 is attached to the upper and lower openings of the rectangular tube body, the moisture-proof film 4 is adhered. Not only the moisture-proof property necessary for maintaining the quality, but also the barrier properties such as the aroma retaining property and the waterproof property are excellent.

Secondly, in addition to the above-mentioned configuration, since the opening peripheral edge of the rectangular tube body 1 has a double structure of the folded piece 2 folded back to the outside and the portion is sandwiched by the frame-shaped portion 5, the ventilation is made from the corner. Therefore, it is expected that the scent of the stored items will not be dissipated and that the scent of the stored items will not be dissipated.

Third, compared to the so-called Inro type, the structure of the container main body is simple, and the molded bottom type can be manufactured at a significantly low cost, and is known as a means for sealing. The cost is lower than the case of using a bag, and the lid B can be fitted to the container body A only by pressing, which contributes to simplification of work and efficiency, which is economical. It is rich in sex.

Fourthly, in the case of the conventional product, it is not necessary to provide a tack to the container body, which is necessary to mount the handle, and the manufacturing process required therefor can be omitted.
Since the mounting portion 7 for mounting the base end portion is integrally formed with the frame-shaped portion 5 of the lid B, in the case of the conventional product that is rivet-tacked from the container side, there is a big problem in terms of sealing property before use. What was there will be resolved.

Fifth, in the case of the present invention, not only powdery substances such as detergents,
It is a general-purpose type that can also be used for carrying or home-delivery of fresh fish and other marine products that have an offensive smell, such as matsutake mushrooms where the preservation of aroma is important.

[Brief description of drawings]

1 shows an embodiment of a powder packaging container according to the present invention, FIG. 1 shows an opened lid state, and an enlarged explanatory view of a main part at an opening peripheral edge of a container body, and FIGS. 2 and 3 are perspective views before and after composition of the bottom of the container body, respectively. FIG. 4 is a perspective view showing the process of manufacturing the peripheral edge of the container body, and FIG. 5 is a lid. FIG. 6 is a perspective view showing the relation between the container body and the container body, and FIG. 6 is a perspective view showing a completed assembly state. A ... Container body, B ... Lid, C ... Handle, 1 ... Square tube, 2 ... Folding piece, 3 ... Flap, 4 ... Moisture-proof film, 5 ... Frame-shaped part, 6 ...... Claws, 7 ...... Mounting parts, 8
...... Cover cover, 9 ...... Hinge.

Claims (2)

[Scope of utility model registration request] 1. A fold-out piece that is folded back outward is continuously provided around the upper opening edge of a bottomed rectangular cylinder made of an impermeable paperboard, and a moisture-proof film is attached to the fold-back surface of the fold-back piece to form the upper part. With the container body formed by sealing the opening: the handle attachment part is installed at the upper edge,
In addition, the folded piece has an inverted L-shaped cross-section that can be fitted and sandwiched at the periphery of the opening that is folded back outward, and a claw portion that engages with the lower edge of the folded piece is provided inside the lower edge of the outer peripheral surface. A powder packaging container comprising a frame-shaped portion and a molded lid body composed of a lid portion for resealing. 2. Folding flaps are continuously provided on the periphery of the lower opening of the rectangular tubular body according to claim 1, and the moistureproof film covering the folding flaps is attached to each of the folding flaps. A powder packaging container, characterized in that a folding flap is folded to form a container body having a bottom portion.