JP2015123968A - Openable/closable pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container capable of being sealed with high sealability and opened, only by adding simple working to a bung hole after manufacture of a pouch, without greatly changing pouch manufacturing equipment.SOLUTION: An openable/closable pouch includes a container body that is made of a sheet or a film and that has a pour-out part (3), a cap (4) that is fixed to the pour-out part, and a lid (5) that is connected to the cap via a hinge. When the lid is closed, the pour-out part of the container body is closed while being folded, and locked in a closed state.

Description

  The present invention relates to a pouch that can be opened and closed so that it can be poured out according to the amount to be used, with a packaging container mainly composed of a film and provided with a spout.

Conventionally, many pouches can be used up once opened. However, when the entire amount is not used up, in the case of particles or powder, a packaging bag-shaped packaging container with a chuck has been used. However, when the contents are fluid, the chuck cannot be completely closed, and usually a method such as closing a spout with a rubber band or a holding scissor has been adopted. In addition, film seal pouches with backflow prevention function have been used, but since there is no function to close again after separating and pouring, it is necessary to always keep it in an upright state after opening, and it may fall down and spill There was a problem such as.
In response to such problems, a packaging container has been developed in which a spout is used, which is fused to the end of the packaging container, and can be reliably screwed in and opened by a screw cap.
However, in order to fuse this spout to a packaging container made of a film, dedicated equipment and a mold are required, and there is a problem that the molding cycle is long and the cost is high.

In order to solve such a problem, Document 1 includes a container for liquid contents, which includes a closing means for reclosing the container, and the container is formed by two opposing side walls and is removable. In a container having a spout portion with an end flap of
The closure means includes squeezing means permanently disposed in the spout portion, the squeezing means comprising first and second legs joined together by joining means;
A connecting portion permanently connected to the spout portion;
Joint means disposed between the joining means and the connecting portion, wherein the first and second legs rotate relative to each other by the joint means to open and close the throttle means; Enabling coupling means, and
The throttling means can move in each of an open state and a closed state,
The squeezing means proposes a container characterized in that it is configured to perform the function of compressing the side wall in its closed state.
However, in this container, since the squeezing means is simply sandwiched between the first and second legs and the gap between the walls facing the spout is compressed, the sealing performance is low, and in particular, the granule is contained in the contents. If it is included, there is a problem that components made of small molecules such as water, fragrances, and volatile components are volatilized from here, or oxygen flows into the interior to cause oxidative deterioration, thereby altering the contents.
For this reason, it was a container with an improper closing means for long-term storage.

Special table 2009-508770

  Accordingly, it is an object of the present invention to obtain a highly sealable and openable container simply by adding a simple process to the spout after manufacturing the pouch without significantly changing the pouch manufacturing facility. .

The openable / closable pouch according to claim 1 of the present invention includes a container body made of a sheet or a film and having a pouring portion, a cap fixed to the pouring portion, and a lid connected to the cap by a hinge. Because
When the lid is closed, the pouring part of the container body is closed while being folded,
An openable / closable pouch characterized by being locked in a closed state.

  The openable / closable pouch according to claim 2 of the present invention is characterized in that the mating surface of the cap and the lid is composed of at least one V-shaped groove and an inverted V-shaped projection corresponding thereto. The openable / closable pouch.

  The openable / closable pouch according to claim 3 of the present invention is characterized in that the pouring part of the container body is a bendable discharge passage provided in the upper part of the container. It is a pouch.

  The openable / closable pouch according to claim 4 of the present invention is the openable / closable pouch according to any one of claims 1 to 3, wherein a guide plate is provided on the inner surface of the lid opposite to the hinge.

  The openable / closable pouch according to a fifth aspect of the present invention is the openable / closable pouch according to any one of the first to fourth aspects, wherein the pouch is a standing pouch that can stand on its own.

The openable / closable pouch of the present invention can be manufactured with ordinary equipment by simply attaching a plastic hinge cap to a spout made of a film.
Moreover, the pouch can be opened and closed simply by opening and closing the lid, and there is no risk of leakage, so it can be handled easily by children and the elderly.

FIG. 2 is an external view showing a state in which a cap is closed and a form of a pouch in the vicinity of a spout with the cap removed, in the openable / closable pouch of the present invention. It is an external view which shows the state before opening the spout of the openable / closable pouch of this invention. It is an external view which shows the cap of the pouch which can be opened and closed of this invention. It is a figure which shows the process of closing a lid | cover with the cap of the openable / closable pouch of this invention. It is an external view which shows another example of the cap of the pouch which can be opened and closed of this invention. It is an external view which shows another example of the cap of the pouch which can be opened and closed of this invention. It is sectional drawing which shows the external view which shows the example of the type which extended the tip of the spout with the cap of the pouch which can be opened and closed of this invention, and a closed form.

Embodiments of the openable / closable pouch according to the present invention will be described below in detail with reference to the drawings.
Fig. 1-1 shows an external view of the entire pouch with the cap closed. The external view which shows the form of the spout vicinity in the pouch before attaching a cap to FIG. 1-2 was expanded and shown.
The openable / closable pouch 1 shown in FIG. 1-1 is a container made of a self-supporting film, referred to as a stauding pouch, and includes a front and rear main film 11 and a bottom film 12 sandwiched near the bottom, It has the fusion | melting part 2 which melt | fused the circumference | surroundings. Of course, not a stauding pouch, it may be a pouch that is fused around all four sides or three sides.
A thin spout 3 is provided on the upper side for the purpose of pouring. A cap 4 is sandwiched at the tip of the spout 3.
The cap 4 is covered with a lid 5 so that the tip of the spout 3 is closed.
As shown in FIG. 1-2, the spout 3 is elongated and has a certain length, and is formed so as to protrude from the main part of the container by the groove 32.
For this reason, it is possible to bend only the spout 3.
Furthermore, at least one fragile portion 31 such as a notch is formed in the fused portion 2 at the tip of the spout so as to open the spout. If this weak part 31 grasps and pulls out the spout tip 30 by hand, the spout 3 is easily opened and the spout tip 30 comes off.

FIG. 2 shows the pouch 1 near the spout 3 before opening, with the cap 4 inserted into the spout 3.
A lid 5 is connected to the cap 4 by a hinge 51, and a fitting protrusion 42 is provided on the opposite side of the hinge 51. An inverted V-shaped projection 41 is provided inside the cap 4 and the spout 3 is inserted.
The spout 3 is fixed to the cap inner surface 43 by a double-sided tape 56, a hot melt adhesive, a fusion, or the like.
The spout 3 has a weakened portion 31 and a spout tip 30 before opening. At the time of opening, the fragile portion 31 is surely pulled out from the cap 4 so that the spout tip 30 can be peeled off by hand or cut off with scissors or the like at the fragile portion 31 portion.

  FIG. 3 is a detailed view of the cap 4 and the lid 5. The cap 4 and the lid 5 are connected by a hinge 51 at one end thereof. With the hinge 51, the cap 4 and the lid 5 can be closed so as to face each other. Further, the cap 4 and the lid 5 can be opened to each other by the hinge 51. FIG. 3 shows a state in which both are opened.

  The cap 4 is provided with an elongated through hole 48 into which the spout 3 can be inserted. The tip of the inserted spout 3 can protrude between the cap 4 and the lid 5. The cap 4 is provided with an elongated protrusion 41 having an inverted V-shaped cross section in parallel with the elongated through hole. Further, the protrusion 41 is arranged on the opposite side of the hinge with respect to the through hole. A fitting protrusion 42 is provided on the outer surface of the cap 4.

On the other hand, the lid 5 is provided with a V-shaped groove 52 in parallel with the through hole. The V-shaped groove 52 is provided at a position facing the inverted V-shaped protrusion 41 of the cap 4 when closed. For this reason, the tip of the spout 3 protruding between the cap 4 and the lid 5 is provided. Can be fixed by being sandwiched between the V-shaped groove 52 and the inverted V-shaped projection 41. Of course, the tip of the spout 3 sandwiched between the two is bent into a V shape along the shape of the V-shaped groove 52 and the inverted V-shaped projection 41.
A V-shaped groove 52 and a guide plate 55 are provided on the inner surface of the lid 5, and a fitting claw 53 and a flange 54 for opening and closing are provided on the opposite side surface of the hinge 51.
The pouch is opened at the fragile portion 31 portion, the contents stored in the pouch are discharged from the spout, and then the lid 5 is closed, so that the fitting protrusion 42 and the fitting claw 53 are fitted and the sealing is fixed. To do.

FIG. 4 is a cross-sectional view showing a process of closing the lid with the cap of the openable / closable pouch of the present invention.
FIG. 4A is a cross-sectional view in which the spout tip 30 is cut off and in an opened state, and one end of the main film 11 of the spout 3 is fixed to the inner surface 43 of the cap 4 by a double-sided tape 56.
FIG. 4B is a diagram of a state in which the lid 5 starts to be closed after the contents are poured out.
The protruding guide plate 55 projecting from the inner surface of the lid 5 guides the spout tip 30 of the spout and directs it toward the opposite side of the hinge 51. The guide plate 55 is invited to the container storage side, and the direction of the spout tip 30 is greatly bent.
4-3, the V-shaped groove 52 of the lid 5 completely enters the inside of the cap 4, the spout 3 is pressed into a V shape and closed, and the fitting claw of the lid 5 becomes the fitting projection of the cap 4. The spout is locked in a closed state.
Even without the guide plate 55, when the V-shaped groove is large and closes and locks, the guide plate 55 may be omitted if the tip of the spout 3 smoothly falls into the groove on the opposite side of the cap hinge.

The V-shaped groove 52 and the inverted V-shaped protrusion 41 may not be a set. For example, FIG. 5 shows an example of a cap different from FIG.
The lid 5 is provided with two V-shaped grooves 52, and two inverted V-shaped protrusions 45 are provided inside the cap 4 correspondingly. Further, the tip to which the fitting claw is fitted may not be a protrusion, and here, the fitting recess 44 is used as a cap that can be locked.

FIG. 6 is a detailed view showing an example of a cap different from FIGS. 3 and 5.
The lid 5 does not have the fitting claw 53 for opening and closing, and is provided with a claw guide plate 58 provided with a claw 57 on the surface opposite to the hinge of the guide plate 55, and the cap 4 instead of the fitting projection. A fitting hole 46 opened to the inner surface is provided, and a claw guide plate 58 is fitted inside to be a cap that can be locked.

Fig. 7-1 is an external view of a cap showing an example of a type of cap which can be opened and closed according to the present invention, in which the tip of the spout is lengthened. The sectional view of the state which closed was shown.
If the pouch is made of a hard material that is difficult to stop if the spout is not long, or if the contents are difficult to stop, the spout where the spout closes is lengthened. In that case, the fitting claw is divided into two left and right portions, and a notch 47 is provided in the center.

Although the present invention is as described above, it is preferable that the main film 11 and the bottom film 12 forming the pouch use a thermoplastic resin on the innermost surface and include a film having a high barrier property. The material is not particularly limited.
For example, from the outside, polyethylene terephthalate / polyethylene,
Polyamide / polyethylene / inorganic oxide vapor-deposited polyethylene terephthalate / polyethylene,
Polyethylene / polyamide / polyethylene / aluminum-deposited polyethylene terephthalate / polyethylene,
Polyamide / polyethylene / aluminum foil / polyethylene terephthalate / polyethylene,
Polyethylene terephthalate / polyethylene / ethylene vinyl acetate copolymer saponified product / polyethylene,
Polyethylene terephthalate / polyethylene / adhesive resin / polyamide / adhesive resin / polyethylene,
A configuration such as polypropylene / adhesive resin / polyamide / adhesive resin / polyethylene is conceivable.
Examples of the adhesive resin include modified polyethylene such as saponified ethylene / vinyl acetate copolymer.

  In addition to high-pressure low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, ethylene / propylene copolymer, and ethylene / vinyl acetate copolymer are used as the inner thermoplastic resin. it can.

A barrier layer may be provided in the film configuration of the front film and the back film excluding the innermost layer. The barrier layer is necessary to block urine odor and create a comfortable environment.
The barrier layer is preferably a transparent layer such as a silicon oxide-deposited ethylene terephthalate film or an ethylene / vinyl acetate copolymer saponified film. If the sheet is transparent, the amount of urine is well known, so it is difficult to spill when dispensing.
If the entire film becomes thick and notch properties are particularly necessary, it is convenient to sandwich a uniaxially stretched film. It becomes easy to cut in a direction perpendicular to the stretching.
When transparency is not necessary, an aluminum vapor-deposited ethylene terephthalate film, an aluminum oxide vapor-deposited ethylene terephthalate film, or the like is used, and the thickness of the ethylene terephthalate film can be from 6 to 25 microns.
Further, although not vapor deposition, the barrier layer may be a film obtained by dry lamination of an aluminum foil on an ethylene terephthalate film, or may be a stretched polyamide film instead of the ethylene terephthalate film.

The main film 11 and the bottom film 12 are usually fused by laminating the molten resin also serving as an adhesive while extruding the molten resin on the barrier layer with an extruder laminator. This molten resin includes high-pressure low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, ethylene / propylene copolymer, ethylene / vinyl acetate copolymer, ethylene-methacrylic acid. Copolymers, ethylene-acrylic acid copolymers, ethylene-methyl acrylate copolymers, ionomer resins and the like can be used. The molten resin used for this lamination is used in a thickness of 3 to 60 microns, depending on the surface properties of the barrier layer and the strength of the waist.
The bottom film 12 is made thinner or softer than the main film 11. Bending is performed so that the inside is the outside, and the film is sandwiched between the main films 11 on the front and back.
Even a normal film pouch without a bottom film may have the same film configuration.

The cap of the present invention can be manufactured by injection molding. The cap 4 and the lid 5 together with the hinge 51 are integrally formed by injection molding at a time.
The cap molding material is preferably an olefin resin. If the pouch and the cap are to be fused, high-pressure low-density polyethylene or linear low-density polyethylene can be used. In addition, polypropylene, ethylene / propylene copolymer, medium density polyethylene, high density polyethylene, polymethylpentene, and the like can be used.

The openable / closable pouch of the present invention is as described above, and can be manufactured with ordinary equipment by simply attaching a plastic hinge cap to a spout made of a film.
In particular, in the case of a pouch that can stand on its own, such as a standing pouch, it can be used as a pouring container placed on a table, and since it can be easily opened and closed, it can also be used for applications that require frequent opening and closing.
Since the pouch can be opened and closed simply by opening and closing the cap and there is no fear of leakage, it can be easily handled by children and the elderly.

1 ... Pouch 11 ... Main film 12 ... Bottom film 2 ... Fusion part 3 ... ······························································································ Cap 41・ Inverted V-shaped protrusion 42 ... fitting protrusion 43 ... cap inner surface 44 ... fitting recess 45 ...・ Two inverted V-shaped protrusions 46... Fitting hole 47... Notch 48. ····················································································································· 55・ ・ ・ ・ ・ ・ ・ ・ Guide plate 56 ・ ・ ・ ・ ・ ・ ・ ・ Double-sided tape 57 ・ ・ ・ ・ ・ ・Claw 58 ........ pawl guide plate

Claims (5)

A pouch composed of a container body made of a sheet or film and having a pouring part, a cap fixed to the pouring part, and a lid connected to the cap by a hinge,
When the lid is closed, the pouring part of the container body is closed while being folded,
An openable / closable pouch that is locked in a closed state.   2. The openable / closable pouch according to claim 1, wherein the mating surface of the cap and the lid includes at least one V-shaped groove and an inverted V-shaped projection corresponding thereto.   The openable / closable pouch according to claim 1 or 2, wherein the pouring part of the container body is a bendable discharge passage provided in the upper part of the container.   The openable / closable pouch according to claim 1, wherein a guide plate is provided on the inner surface of the lid opposite to the hinge.   The openable and closable pouch according to any one of claims 1 to 4, wherein the pouch is a standing pouch that can stand by itself.

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