JP7003525B2 - Top seal packaging container - Google Patents

Description

The present invention relates to a packaging container having a top-seal portion (top-seal packaging container).

Some portion packs, liquid seasonings, and sauces that package foods such as jams and coffee cream in small portions have the upper surface of the open container closed by a film (top seal) (top seal packaging container). .. By turning over the top seal portion, the upper surface of the container is opened, and the contents are poured out (taken out) from there (for example, Patent Document 1). If the top seal is opened too large, the contents may spill easily when pouring out, making it difficult to pour out the contents in a stable manner. On the other hand, if the opening is too small, it may be easily blocked and it may be difficult to pour out the contents.

Also, in a top-seal packaging container, the opening may become too large when the entire top-seal part is turned over, so a small opening is formed by turning over only a part of the top-seal part, and the contents are poured out from there. Often. If the top seal part that was once turned over while pouring out the contents returns to its original position, the opening may be partially blocked and narrowed, making it difficult to pour out the contents.

Jikken Akira 64-51004 Gazette

An object of the present invention is to make the contents stable and easy to pour out.

The top-sealed packaging container according to the present invention is formed by opening the upper part of the container body having a storage portion inside, protruding laterally from the upper part of the wall surface of the container body, and opening the upper part. On the pouring section having a pouring flow path communicating with the storage section, the flange section connected to the peripheral edge of the upper end opening of the container body and the peripheral edge of the upper end opening of the pouring flow path of the pouring section, and the flange section. It is fixed and has a top seal portion that closes the upper end opening of the container body and the upper end opening of the pouring flow path, and the pouring portion has a first half-cut line in a direction intersecting the protruding direction of the pouring portion. A second half-cut line in a direction intersecting the projecting direction of the pouring portion is formed in a range that closes the upper end opening of the pouring passage of the top seal portion.

According to the present invention, the tip of the pouring portion and the tip of the top seal portion can be cut at the same time at the positions where the first and second half-cut lines are formed. Since the tip of the pouring portion and the tip of the top seal portion are cut along the first and second half-cut lines, the formed opening is not too large or too small, and has a predetermined size. The opening can be formed stably. The contents of the reservoir can be stably poured out easily.

Further, since the top seal portion is cut instead of being turned over, the opening is not narrowed by the top seal portion once turned over.

Preferably, the second half-cut line is located on the extension of the first half-cut line. The first and second half-cut lines are preferably located at positions where they completely overlap each other, but they may be offset to the extent that they do not affect the cut. The tips of the pouring portion and the top seal portion can be cut almost flush with each other.

In one embodiment, a third half-cut line is formed on an extension of the first half-cut line at the flange portions on both sides of the pouring portion. Even if the flanges on both sides of the pouring portion are wide, the tip of the pouring portion can be easily cut.

In another embodiment, an intermittent cut is formed on the extension of the first half-cut line of the flange portions on both sides of the pouring portion. This also facilitates cutting of the tip of the pouring portion including the flange portion.

Preferably, in at least one of the flange portions on both sides of the pouring portion, a notch is formed at the edge portion of the flange portion on the extension of the first half-cut line. The notch formed at the edge of the flange can be used as a trigger for cutting the tip of the pouring portion.

Of course, the top seal portion may also have a notch formed at at least one end of the second half-cut line.

Preferably, a plurality of second half-cut lines are formed. Since the tip of the top seal portion is cut in any of the plurality of second half cuts, it is not necessary to perform precise alignment with the first half cut line formed in the pouring portion.

In one embodiment, the knob portion is continuous with the flange portion around the pouring portion. Since the gripped portion can be firmly gripped (picked with fingers), this also makes it easier to cut the tips of the pouring portion and the top seal portion.

The top-seal packaging container may have a plurality of pouring portions.

It is a top view of the top seal packaging container. It is a side view of the top seal packaging container. It is the bottom view of the top seal packaging container. It is a perspective view of the top seal packaging container which shows by breaking the top seal part. It is a front view of the top seal packaging container after opening. It is a partially enlarged bottom view of the top seal packaging container of the modification. It is a partially enlarged bottom view of the top seal packaging container of another modification. It is a partially enlarged bottom view of the top seal packaging container of still another modification. It is a perspective view of the top seal packaging container of another Example.

1 to 3 show a plan view, a side view, and a bottom view of the top-sealed packaging container, respectively. FIG. 4 is a perspective view of a top-seal packaging container shown by breaking the top-seal portion described later.

The top-seal packaging container 1 includes a container main body portion 10 and a top-seal portion 20.

The container main body portion 10 includes a wall surface portion 11 and a bottom portion 12 integrally molded by sheet molding, and has a storage portion that opens upward and is surrounded by the wall surface portion 11 and the bottom portion 12. The bottom 12 is approximately rectangular and its four corners are rounded. The wall surface portion 11 is a square cylinder with rounded corners that is continuous downward with the peripheral edge of the bottom portion 12 of the rectangle, and the diameter increases from the lower part to the upper part as a whole. The magnitude (inclination) of the spread of the wall surface portion 11 from the lower part to the upper part is substantially equal on the two opposite long sides of the bottom portion 12 of the rectangle and the one short side connecting the ends of the two long sides. On the other hand, the wall surface portion 11 extending from the other short side connecting the other ends of the two long sides to the upper side greatly expands from the lower part to the upper part (that is, the inclination angle is gentle) (FIG. 2, FIG. See Figure 3). The wall surface portion 11 having a gentle inclination angle is referred to as a front wall surface portion of the container main body portion 10 for convenience.

At the upper part of the front wall surface portion of the container main body portion 10, a pouring portion 15 projecting toward the side (front) is integrally formed with the front wall surface portion.

The pouring portion 15 is also integrally formed with the container body 10 by sheet molding, and has an outer shape in which the width becomes narrower (tapered) toward the tip and the bottom is inclined diagonally upward toward the tip. .. On the inner surface of the pouring portion 15, a pouring passage that opens upward and has a shape that follows the outer shape of the pouring portion 15 described above is formed. The storage section of the container body 10 and the pouring passage of the pouring section 15 are connected inside the container body 10, and the liquid substance stored in the storage section can be poured out through the pouring section 15.

A flange portion 13 extending laterally is integrally formed on the entire circumference of the peripheral edge of the upper end opening of the container body 10 and the entire peripheral edge of the upper end opening of the pouring portion 15. The flange portion 13 has substantially the same width (amount of protrusion to the side) over the entire circumference, and has a shape that protrudes forward at the peripheral edge of the tip of the pouring portion 15.

The top seal portion 20 is fixed to the outer surface (upper surface) of the flange portion 13 by adhesion or welding, whereby the upper end opening of the container body 10 and the upper end opening of the pouring portion 15 are closed. The top seal portion 20 has an outer shape that matches the outer shape of the flange portion 13, and has a shape that protrudes forward at the portion where the upper end opening of the pouring portion 15 is closed.

With reference to FIGS. 2 and 3, one half-cut line 16 is formed on the outer surface of the pouring portion 15. The half-cut line 16 is formed so as to face a direction that intersects the projecting direction of the pouring portion 15 at a substantially right angle. Further, the half-cut wire 16 is formed not only on the pouring portion 15 but also on the flange portions 13 extending on both sides of the pouring portion 15, and the half-cut wire 16 formed on the flange portion 13 is formed on the pouring portion 15. It is located on the extension of the half-cut line 16. It is preferable that the half-cut wire 16 of the pouring portion 15 and the half-cut wire 16 of the flange portion 13 are continuously formed. Instead of the outer surface of the pouring portion 15, the half-cut line 16 may be formed on the inner surface (pouring passage) of the pouring portion 15, or the half-cut line 16 may be formed on each of the outer surface and the inner surface of the pouring portion 15. good. Further, although the half-cut line 16 shown in the figure is a straight line, it may be a curved line or a wavy line.

The half-cut wire 16 is formed using a blade from the outer surface to the inner surface (or from the inner surface to the outer surface) with a depth halfway through the pouring portion 15 and completely penetrates the pouring portion 15. Not. The same applies to the half-cut wire 16 formed on the flange portion 13.

With reference to FIG. 1, a half-cut line 26 is also formed in the range (protruding portion) where the pouring passage of the pouring portion 15 of the top seal portion 20 is closed (protruding portion) in a direction substantially perpendicular to the protruding direction of the pouring portion 15. Has been done. The half-cut wire 26 formed on the top seal portion 20 is formed with a depth halfway from the outer surface to the inner surface thereof by using a cutting tool or a laser, and the top seal portion 20 is completely formed. It does not penetrate. The half-cut wire 26 can also be formed on the inner surface in place of or in addition to the outer surface of the top seal portion 20. Further, the half-cut line 26 does not necessarily have to be a straight line, but may be a curved line or a wavy line.

The plurality of half-cut lines 26 formed on the top seal portion 20 are formed with a slight interval, for example, an interval of 0.5 mm to 1.5 mm, and the plurality of half-cut lines formed on the top seal portion 20 are formed. The half-cut wire 16 formed in the pouring portion 15 and the flange portion 13 is located in the range of 26 (between the two half-cut wires 26 at both ends) (see FIG. 2). That is, one of the plurality of half-cut wires 26 formed on the top seal portion 20 is located on the extension of the half-cut wire 16 formed on the pouring portion 15. It is preferable to form a plurality of half-cut lines 26 on the top seal portion 20, but it is also possible to form only one half-cut line 26. In this case, the one half-cut wire 26 formed on the top seal portion 20 is located on the extension of the one half-cut wire 16 formed on the pouring portion 15 (half-cut wire 16 and half-cut). The alignment is performed so that the lines 26 overlap each other vertically, correspond to the top and bottom (there may be a deviation that does not affect the cut), and go around the half-cut line 16 and the half-cut line 26).

Since the mechanical strength of the pouring portion 15 where the half-cut line 16 is formed and the top seal portion 20 where the half-cut line 26 is formed are partially reduced, the top seal portion 20 and the pouring portion 15 are formed. When the tip of the is grabbed with a finger and folded or twisted, the pouring portion 15 including the flange portion 13 is cut along the half cut line 16, and at the same time, the top seal portion 20 is cut along the half cut line 26. The tip is torn (cut).

FIG. 5 is a front view of the top-sealed packaging container 1 after opening. The tips of the pouring portion 15 and the top seal portion 20 are cut substantially flush with each other, and a spout (opening) K surrounded by the top sealing portion 20 and the pouring portion 15 is formed in the top seal packaging container 1. The contents in the container main body 10 are poured out through the spout K.

As described above, the tips of the pouring portion 15 and the top seal portion 20 are cut at the locations where the half-cut lines 16 and 26 are formed, so that the spout K formed has a predetermined size. That is, the spout K to be formed is not too large or too small, and the spout K having a predetermined size can be stably formed.

Further, since the top seal portion 20 is not turned over but the tip portion thereof is cut, the spout K is not narrowed or blocked by the top seal portion 20.

6 to 8 show modified examples, respectively, and the tip portion of the top-sealed packaging container is shown from the bottom surface.

With reference to FIG. 6, on the extension of both ends of the half-cut wire 16 formed in the pouring portion 15, an intermittent cut (perforation) 17 is formed in the flange portion 13 instead of the half-cut wire. This is because, unlike the pouring portion 15, the flange portion 13 does not leak the contents inside the container body portion to the outside even if the through hole is formed.

With reference to FIG. 7, a notch 18 is formed at the tip end portion (edge portion of the flange portion 13) of the half-cut wire 16 formed in the flange portion 13 on one side of the pouring portion 15. The notch 18 may be formed at the tip of the half-cut wire 16 at the flange portions 13 on both sides of the pouring portion 15. The notch 18 can be used as an opportunity to cut the tips of the pouring portion 15 and the top seal portion 20, which facilitates cutting.

With reference to FIG. 8, a slightly large knob portion 19 is formed at the tip of the flange portion 13. Since the grip portion 19 can be firmly gripped (picked with fingers), the tips of the pouring portion 15 and the top seal portion 20 can be easily cut.

FIG. 9 shows the top-sealed packaging container 2 of another embodiment, and shows a perspective view corresponding to FIG. It differs from the top-sealed packaging container 1 provided with one pouring portion 15 in that two pouring portions 15 and 15A are formed.

The two pouring portions 15 and 15A have different sizes (cross-sectional area of the pouring passage), and when forming a relatively small spout, the pouring portion 15 can form a relatively large spout. The pouring portion 15A is used. The number, size, and formation position of the pouring portions 15 and 15A can be arbitrarily designed as needed. Further, the container body portion 10 can also be changed by forming a shape (dent, curvature, etc.) that makes it easy to grasp the container body portion 10 with a finger or a hand on the wall surface portion 11.

For the sheet used for sheet molding of the container body 10 (wall surface 11 and bottom 12), flange 13 and pouring 15, for example, a polypropylene (PP) single-layer sheet may be used, or a plurality of types of resins may be used. A multi-layered co-pressed sheet in which sheets are laminated may be used. The sheet thickness is, for example, about 0.2 mm to 1.0 mm. Various functional layers such as a resin layer for ensuring mechanical strength, a water vapor barrier layer, a light-shielding layer, and a watertight layer can be laminated as needed. For example, from the outer layer to the inner layer, a PP / polyethylene laminated film, a PP / EVOH (ethylene / vinyl alcohol copolymer resin) / PP laminated film, a PP / EVOH / PP / PE (polyethylene) laminated film, or the like is used. Is possible.

For the top seal portion 20, from the outer layer to the inner layer, a laminated film of PET (polyethylene terephthalate) / ONY (stretched nylon) / CPP (unstretched polypropylene), a laminated film of PET / ALM (aluminum) / PE, etc. Can be used.

1, 2, top seal packaging container
10 Container body
13 Flange part
15, 15A pouring part
16,26 Half-cut line
17 Intermittent breaks (perforations)
18 Notch
19 Picking part
20 Top seal part

Claims (6)

The main body of the container, which is open at the top and has a storage section inside.
A pouring portion, which is formed so as to project laterally from the upper part of the wall surface of the container main body portion, has an opening at the upper side, and has a pouring flow path communicating with the storage portion.
The flange portion connected to the peripheral edge of the upper end opening of the container body and the peripheral edge of the upper end opening of the pouring flow path of the pouring portion, and the flange portion fixed to the flange portion, the upper end opening of the container body portion and the pouring. Equipped with a top seal that closes the upper end opening of the flow path
A first half-cut line in a direction intersecting the protruding direction of the pouring portion is formed in the pouring portion.
A top-seal packaging container in which a second half-cut line in a direction intersecting the projecting direction of the pouring portion is formed in a range that closes the upper end opening of the pouring passage of the top-sealing portion.
On both sides of the first half-cut wire formed in the pouring portion, a pair of intermittent cuts are formed in the flange portions on both sides of the pouring portion.
Top seal packaging container. The top-sealed packaging container according to claim 1, wherein the second half-cut line is located on an extension of the first half-cut line. The top according to claim 1 or 2 , wherein in at least one of the flange portions on both sides of the pouring portion, a notch is formed at the edge portion of the flange portion on the extension of the first half-cut line. Sealed packaging container. The top-sealed packaging container according to any one of claims 1 to 3 , wherein a plurality of second half-cut lines are formed. The top-sealed packaging container according to any one of claims 1 to 4 , wherein the flange portion around the pouring portion has a continuous knob portion. The top-sealed packaging container according to any one of claims 1 to 5 , further comprising the plurality of pouring portions.

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