JP2012246010A - Refill container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refill container for which a pouring-out port can easily and surely be formed, and by which a refilling operation can easily, quickly and surely be performed by forming a predetermined simple embossing on the nozzle section for pouring out.SOLUTION: A bent section is formed by doubly folding a sheet of a film. The nozzle for pouring out is formed by sealing the lower side alone in such a manner as to face diagonally upward to the upper corner section of the bent section and a side edge. At a position where the front and rear films of the nozzle for pouring out are confronted with each other, at least a thin and long protuberance-like section which expands outward in parallel with the path of the nozzle for pouring out is provided. The protuberance-like section consists of a first slope which is arranged on the lower seal section side, and tilts to the outside toward the upper edge, and a second slope which is arranged to be adjacent to the same, and also, tilts inward toward the upper edge. In this case, a second tilting distance formed by the second slope is larger than a first tilting distance formed by the first slope for the refill container.

Description

  The present invention relates to a refill container for storing toiletries such as liquid detergents and softeners, foods such as edible oil and instant coffee.

  Toiletries such as liquid detergents and softeners, and foods such as edible oil and instant coffee are stored in dedicated containers that are easy to use. The dedicated container has a solid structure and is therefore expensive, so a product with a refill container that refills only the contents is sold separately so that it can be used repeatedly when the contents are gone. It is often done.

  For example, liquid detergent containers need to be weighed and taken out each time they are used, so a rigid plastic container with a nozzle at the spout is repeatedly used so that it can be easily poured into a lightweight cup. It is used as a container to be used.

  A rigid container that is used repeatedly is designed to be easily poured out, so it does not necessarily take into account the convenience of the refilling operation of refilling the contents from the refilling container. It was.

  As a refilling container for replenishing the contents of the rigid container to be used repeatedly, it is common to use a flexible container made of a flexible packaging film from the viewpoint of cost. A flexible container made of a film has a problem that the spout is likely to be clogged and it takes time to pour out the contents.

  In order to solve this problem, a packaging bag has been proposed in which the film constituting the packaging bag is bent to form the upper side of the spout and the sealing portion of the spout is only the side (see Patent Document 1). .

  In the packaging bag described in Patent Document 1, the spout swells in an arc shape due to the elastic action of returning the folded film on the upper side, and does not easily become flat. That is, it has a structure in which a phenomenon in which the films on the front and back sides of the spout formed are in close contact with each other and hardly blocked is generated.

  In addition, a technique has been proposed in which an opening area is ensured by inflating a film in the vicinity of the spout portion into a three-dimensional shape (see Patent Document 2).

JP 2008-18991 A JP 2004-168333 A

  In the case of packaging bags such as those shown in Patent Documents 1 and 2, the problem that the spout is blocked is solved to some extent, but the time required for pouring and the ease of pouring are still not sufficient.

The problem to be solved by the present invention is to form a spout which can be easily and surely formed by forming a specified simple emboss in the pouring nozzle portion, so that the refilling operation can be performed easily, quickly and reliably. A replacement container is proposed.

  As means for solving the above-mentioned problems, the invention according to claim 1 is characterized in that one film is folded in two to form a bent portion, a front side film and a back side film, and another one film is folded. The bottom tape is inserted between the front film and the back film to form the bottom surface, the bent portion is the upper side, the left and right sides and the peripheral portion around the bottom side are sealed to form a storage portion inside. A refill container formed by sealing only the lower side so as to face obliquely upward at the upper corner of the upper side and one of the left and right side sides to form a pouring nozzle. At least one elongated convex part bulging outward in parallel to the path of the pouring nozzle facing diagonally upward, at a position opposite to the front side film and the back side film of the nozzle. The shape part is below the pouring nozzle. A first inclined surface disposed on the seal portion side and inclined outward toward the upper side, and a second inclined surface disposed adjacent to the upper side of the first inclined surface and inclined inward toward the upper side The relationship between the first inclined distance formed by the first inclined surface and the second inclined distance formed by the second inclined surface in a direction perpendicular to the path of the dispensing nozzle is greater than the first inclined distance. The refill container is characterized in that the second inclined distance is large.

  The invention according to claim 2 is the refill container according to claim 1, wherein a plurality of the convex portions are continuously formed.

  The invention according to claim 3 is the refill container according to claim 1 or 2, wherein the rising angle of the first inclined surface is approximately 90 °.

  According to a fourth aspect of the present invention, there is a concave portion recessed inwardly formed in parallel adjacent to the lower seal portion between the lower seal portion and the convex portion. The refill according to any one of claims 1 to 3, wherein the inclined surface of the convex portion side of the portion and the first inclined surface of the convex portion are continuously formed. It is a container.

  The refill container according to the present invention folds one film in half, forms a bent portion as the upper side, and seals only on the lower side so that the upper side and the upper corner of one side face obliquely upward Thus, since the dispensing nozzle is formed, a phenomenon in which the film on the front and back surfaces adheres and the dispensing nozzle is blocked is hardly caused by the elastic action of spreading the bent portion.

  Further, an elongated convex portion is provided in the path of the dispensing nozzle, and the convex portion is disposed on the lower seal portion side of the dispensing nozzle and is inclined first toward the upper side. A first inclined surface in a direction perpendicular to the path of the dispensing nozzle, and a second inclined surface disposed adjacent to the upper side of the first inclined surface and inclined inward toward the upper side The relationship between the first inclined distance formed by the second inclined distance and the second inclined distance formed by the second inclined surface is such that the second inclined distance is larger than the first inclined distance. It is steep, and the second inclined surface goes down gently. For this reason, the lower seal portion side of the dispensing nozzle that is likely to be blocked is more easily spread.

  On the other hand, since the second inclined surface on the side of the bent portion is gentle, the obstruction preventing effect of the bent portion that is originally intended to spread due to the elasticity of the film is not hindered. For this reason, it becomes more difficult to cause clogging, and the cross-sectional area of the extraction channel is increased, thereby enabling quick extraction. For this reason, the refilling operation can be performed easily, quickly and reliably.

According to the second aspect of the present invention, since a plurality of convex portions are continuously formed, the boundary between the first inclined surface and the second inclined surface becomes a rib, and the bending of the pouring channel is prevented. In addition to exhibiting the effect of the above, since the pouring channel has an accordion shape, it easily spreads according to the flow rate and is difficult to block, so that the refilling operation can be performed more easily, quickly and reliably.

  According to the third aspect of the present invention, since the rising angle of the first inclined surface is approximately 90 °, the blocking prevention effect in the vicinity of the lower seal portion is maximized.

  According to the fourth aspect of the present invention, the indented concave portion is formed in parallel and adjacent to the lower seal portion, the inclined surface on the convex portion side of the concave portion, and the convex Since the first inclined surface of the shape portion is continuously formed, when the lower seal portion is formed, the concave portions on the front and back surfaces collide with each other, and the convex portion on the lower seal portion side is caused by the repulsive force. Swells firmly. As a result, the blocking prevention effect is sufficiently exhibited.

  In any of the embodiments of the present invention, the spout can be easily and reliably formed by forming the specified simple embossing in the pouring nozzle portion, and the refilling operation can be performed easily, quickly and reliably. It is something that can be done.

FIG. 1 is a schematic view showing an embodiment of a refill container according to the present invention. FIG. 2 is a schematic cross-sectional view showing the A-A ′ cross section of FIG. 1. FIG. 3 is a schematic cross-sectional view showing the state of the film before the state of FIG. 2 is obtained by bending and sealing. FIG. 4 is a schematic view showing another embodiment of the refill container according to the present invention. FIG. 5 is a schematic cross-sectional view showing the B-B ′ cross section of FIG. 4. FIG. 6 is a schematic cross-sectional view showing the state of the film before the state of FIG. 5 is obtained by bending and sealing. FIG. 7 is a schematic view showing another embodiment of the refill container according to the present invention. FIG. 8 is a schematic cross-sectional view showing the C-C ′ cross section of FIG. 7. FIG. 9 is a schematic cross-sectional view showing the state of the film before the state of FIG. 8 is obtained by bending and sealing.

Hereinafter, the refill container according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view showing an embodiment of a refill container according to the present invention. FIG. 2 is a schematic cross-sectional view showing the AA ′ cross section (pouring nozzle portion) of FIG. FIG. 3 is a schematic cross-sectional view showing the state of the film before the state of FIG. 2 is obtained by bending and sealing.

As shown in FIG. 1, the refill container (1) according to the present invention folds one film into two to form a folded portion (5), a front film (10), and a back film (11). Then, another film is folded to form the bottom tape (16), inserted between the front film (10) and the back film (11) to form the bottom surface, the folded portion (5) as the upper side, Seal the peripheral part around the side and bottom to form the storage part (2) inside, and seal only the lower side so that the upper side and the upper corner of one side of the left and right side are diagonally upward (Lower seal portion (4)), a refill container formed with a dispensing nozzle (3).

  The refill container (1) according to the present invention is a path of the pouring nozzle (3) facing obliquely upward at a position where the front film (10) and the back film (11) of the pouring nozzle (3) face each other. And at least one elongated convex portion (6) bulging outward. In the embodiment of FIG. 1, one convex portion (6) is arranged.

  The convex portion (6) is disposed on the lower seal portion (4) side of the dispensing nozzle (3) and is inclined outwardly toward the upper side and the first inclined surface (7) and the first inclined surface ( 7) It is arranged so as to be adjacent to the upper side, and includes a second inclined surface (8) inclined inward toward the upper side.

As shown in FIG. 2, the first inclined distance (7a) formed by the first inclined surface (7) and the second formed by the second inclined surface (8) in the direction perpendicular to the path of the dispensing nozzle (3). The relationship with the inclination distance (8a) is characterized in that the second inclination distance (8a) is larger than the first inclination distance (7a).
This means that the inclination angle of the first inclined surface (7) is steep and the inclination angle of the second inclined surface (8) is gentle.

  For this reason, the lower seal part (4) side of the pouring nozzle (3) that is likely to be blocked is more easily spread. On the other hand, the vicinity of the bent portion (5) has a property of originally spreading due to the elasticity of the film. Therefore, when embossing or the like is inserted in the vicinity of the bent portion (5), this originally has the property of spreading. Will interfere.

  In the refill container (1) according to the present invention, since the second inclined surface (8) on the bent portion side is gentle, the obstruction preventing effect inherent to the bent portion (5) is not hindered. For this reason, it becomes difficult to produce a blockade, and the cross-sectional area of the extraction channel is increased, so that quick extraction is possible.

  FIG. 3 is a schematic cross-sectional view showing the state of the film before the state of FIG. 2 is obtained by bending and sealing. After forming the convex portions (6) on the front and back surfaces on one sheet of film, the bent portion (5) is formed by bending at the center portion, and the lower seal portion (4) is formed. It becomes a state.

  The rising angle (9) of the first inclined surface (7) of the convex portion (6) in the state of FIG. 3 is expanded in the angle due to the rebound resilience of the bent portion (5) by bending in the state of FIG. The rising angle (9) tends to be small.

  On the other hand, the adhesion preventing effect in the vicinity of the lower seal portion (4) of the dispensing nozzle (3) is better as the rising angle (9) is larger. Therefore, it is preferable to set a large value in advance in anticipation of the rising angle (9) becoming small when bent.

  FIG. 4 is a schematic view showing another embodiment of the refill container (1) according to the present invention. FIG. 5 is a schematic cross-sectional view showing a B-B ′ cross section (a dispensing nozzle portion) in FIG. 4. FIG. 6 is a schematic cross-sectional view showing the state of the film before the state shown in FIG. 5 is obtained by bending and sealing.

In the embodiment shown in FIGS. 4 to 6, three convex portions (6) are provided continuously. Thus, by providing a plurality of convex portions (6) continuously, the ridgeline at the boundary between the first inclined surface (7) and the second inclined surface (8) becomes a rib, Demonstrates the effect of preventing bending. Moreover, since the extraction flow path has a bellows shape, it tends to expand according to the flow rate, and is difficult to block. For this reason, the refilling operation can be performed more easily, quickly and reliably.

  FIG. 7 is a schematic view showing another embodiment of the refill container (1) according to the present invention. FIG. 8 is a schematic cross-sectional view showing a C-C ′ cross section (a dispensing nozzle portion) in FIG. 7. FIG. 9 is a schematic cross-sectional view showing the state of the film before the state shown in FIG. 8 is obtained by bending and sealing.

  In the embodiment shown in FIGS. 7 to 9, three convex portions (6) are continuously provided, and the rising angle (9) of the first inclined surface (7) is approximately 90 °. It is characterized by. For this reason, in FIG. 7, the first inclined surface (7) cannot be seen, and only the second inclined surface (8) appears to be continuous.

  When the rising angle (9) of the first inclined surface (7) is approximately 90 °, the blocking prevention effect in the vicinity of the lower seal portion (4) is maximized.

  In the embodiment shown in FIGS. 7-9, as further shown in FIG. 9, it is adjacent to the lower seal portion (4) between the lower seal portion (4) and the nearest convex portion (6). And the concave portion (12) recessed inward and formed in parallel, the inclined surface (13) on the convex portion side of the concave portion (12), and the first inclined surface of the convex portion (6) ( 7) is formed continuously.

  The inclined surface formed continuously means that the inclined surface (13) of the concave portion and the first inclined surface (7) of the convex portion are formed as one surface. That is, the state where each inclined surface is not bent at the connecting portion is intended.

  By doing so, when the film is bent and the lower seal portion (4) is sealed, the concave portions (12) come into contact with each other, and the repulsive force pushes the convex portion (6) outward. Try to. As a result, an effect of preventing the phenomenon that the rising angle (9) of the first inclined surface (7) when the film described above is folded is reduced, and the blocking prevention effect is sufficiently exhibited.

  In the refill container (1) according to the present invention, the cutting nozzle (3) is provided with a cutting line (14) for forming a spout and an opening knob (15), whereby the cutting line (14) Can be easily opened along the line. By providing a half-cut line (not shown) on the extension line of the cut line (14), the ease of opening is further improved.

  For the half-cut line, a method of forming with a blade and a method of forming by laser processing are generally used, but the method by laser processing is preferable because a uniform and stable cut can be formed. As the type of laser, a carbon dioxide laser is more preferable.

  In the embodiment shown in FIG. 1, FIG. 4, and FIG. 7, a part of the bent portion (5) (upper side) formed by folding one film in half is cut open, and the content filling opening (17) It is as. Thus, when the opening part for filling exists in the top part of a container, there exists an advantage which becomes easy to perform filling operation of the contents. Further, when the content filling opening (17) is formed by cutting a part of the folded upper side, a point seal portion (18) is provided at the end of the content filling opening (17). Is effective. By providing the point seal portion (18), even when the content filling opening (17) is opened at the time of filling, the upper side folded in half from the end of the content filling opening (17) is torn, It doesn't stretch.

In order to manufacture the refill container (1) shown in FIG. 1, FIG. 4, and FIG. 7, a film slit to a width approximately twice the width corresponding to the height of the container is placed on the upper side with the sealant layer surface inside. The front side film (10) and the back side film (11) are folded and faced to be continuously supplied, and the bottom tape (16) folded in half so that the surface of the sealant layer is on the outside is continuously supplied. After necessary sealing is performed, the container is punched out.

  As a film used for the refill container according to the present invention, a film usually used for a flexible packaging bag can be used. The film in the present invention is formed by laminating at least a base material and a sealant layer.

  As the substrate, paper, metal foil or synthetic resin film consisting of one layer or several layers is used. For example, low density polyethylene resin (LDPE), high density polyethylene resin (HDPE), linear low density polyethylene resin (LLDPE), polypropylene resin (PP), polyolefin resin such as polyolefin elastomer, polyethylene terephthalate resin (PET), polyester resins such as polybutylene terephthalate resin (PBT), polyethylene naphthalate resin (PEN), cellulose resins such as cellophane and cellulose triacetate (TAC), polymethyl methacrylate (PMMA) resin, ethylene- Vinyl acetate copolymer resin (EVA), ionomer resin, polybutene resin, polyacrylonitrile resin, polyamide resin, polystyrene resin (PS), polyvinyl chloride resin (PVC), polyvinyl chloride System resin (PVDC), polycarbonate resin (PC), fluorine-based resin, synthetic resin films and paper, such as urethane resin, a metal foil or the like alone or be used in combination. The substrate includes a printing layer and an adhesive layer as necessary.

  As the paper, high-quality paper, piece art paper, coated paper, cast coated paper, imitation paper, and the like can be used. It is also effective to use paper from the viewpoint of environmental considerations.

  As the sealant layer, polyolefin resin is generally used. Specifically, low density polyethylene resin, medium density polyethylene resin, linear low density polyethylene resin, ethylene / vinyl acetate copolymer, ethylene / α-olefin are used. An ethylene resin such as a copolymer, a polypropylene resin such as a homopolypropylene resin, a propylene / ethylene random copolymer, a propylene / ethylene block copolymer, and a propylene / α-olefin copolymer are used. In addition, a multilayer film in which these resins are combined may be used.

  Specific examples of the film structure include PET / printing layer / adhesive layer / stretched polyamide resin film (hereinafter abbreviated as ONY) / adhesive layer / LLDPE, ONY / adhesive layer / LLDPE, Examples include ONY / adhesive layer / ONY / adhesive layer / LLDPE, paper / LDPE / aluminum foil / LDPE, and paper / LDPE.

DESCRIPTION OF SYMBOLS 1 ... Refill container 2 ... Storage part 3 ... Extraction nozzle 4 ... Lower seal part 5 ... Bending part 6 ... Convex part 7 ... 1st inclined surface 7a ... 1st inclination distance 8 ... 2nd inclined surface 8a ... Second inclination distance 9 ... Rising angle 10 ... Front side film 11 ... Back side film 12 ... Concave part 13 ... -Recessed portion inclined surface 14 ... cutting line 15 ... opening knob 16 ... bottom tape 17 ... content filling opening 18 ... point seal part

Claims (4)

One film is folded in two to form a folded part, a front film and a back film, and another film is folded to form a bottom tape, which is inserted between the front film and the back film to form a bottom surface. The bent portion is the upper side, the left and right sides and the peripheral portion around the bottom side are sealed to form a storage portion inside, and the upper side and one side of the left and right side are inclined at the upper corner A refill container formed by sealing only the lower side so as to face upward and forming a dispensing nozzle,
It has at least one elongated convex part that swells outward in parallel to the path of the pouring nozzle facing diagonally upward at a position opposite to the front film and the back film of the pouring nozzle. ,
The convex portion is disposed on the lower seal portion side of the dispensing nozzle, and is disposed adjacent to the first inclined surface inclined outward toward the upper side and the upper side of the first inclined surface. And a second inclined surface inclined inward toward the upper side,
The relationship between the first inclined distance formed by the first inclined surface and the second inclined distance formed by the second inclined surface in the direction perpendicular to the path of the dispensing nozzle is a second inclined distance rather than the first inclined distance. A refill container characterized by its large size.   The refill container according to claim 1, wherein a plurality of the convex portions are continuously formed.   The refill container according to claim 1 or 2, wherein a rising angle of the first inclined surface is approximately 90 °.   Between the lower seal part and the convex part, there is a concave part recessed inwardly formed adjacent to the lower seal part, and an inclined surface of the concave part on the convex part side; The refill container according to any one of claims 1 to 3, wherein the first inclined surface of the convex portion is continuously formed.

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