JPH11152154A - Pouch with opening maintaining member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouch with opening maintaining member wherein a pouring mouth part is flat so that stacking efficiencies are good at the time of transportation and storage of the pouch, and troubles in the transportation of the pouch on a content charging machine can be eliminated and when the contents are poured, a pouring hole of the pouring part can be formed into a three-dimensional construction at one step operation to easily pour the contents. SOLUTION: In the soft pouch 100 which has a pouring mouth part 110 whose forward end is cut off to form a pouring hole 111 when in use and the peripheries of a front and rear synthetic resin film are sealed, rectangular side plates 220a, 220b are connected to the opposite sides of a rectangular center plate 210 through hinges 201a, 201b respectively, and one or more square notches 203 are provided across each of the hinges. And engaging claws 211, 221 for engagement, which engage with each other when the side plates 220a, 220b are turned, are provided on the opposed edges of the center plate and the side plate, which are opposed to each other with respect to the notch 203, respectively, in an opening maintaining member 200 made of flat and rigid synthetic resin, which member is inserted into the pouring hole 111 of the part 110.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouch for refilling liquid detergents, toiletries, fruit juice drinks, seasonings, and the like, and more particularly to a pouch with an opening maintaining member for easily discharging contents.

[0002]

2. Description of the Related Art In recent years, refill containers for various liquid contents have been widely used from the standpoint of environmental protection and resource saving. As a container for this refill, there is a pouch with a flexible spout portion made of a synthetic resin film that cuts and opens the tip of the spout portion at the time of use, and pours out contents.
When refilling the contents into another container, in order to improve the ease with which the contents at the spout can be poured out, see, for example, Japanese Patent Application Laid-Open
Japanese Patent Application Laid-Open No. 9-2538 discloses a method in which a spout hole of a spout portion described in JP-A-2538 is formed into a hollow cylindrical shape or a hollow semi-cylindrical shape.
A semi-rigid or hard pipe is buried in a pouring hole of a pouring port described in Japanese Patent No.

[0003]

However, in the above-mentioned conventional pouch with a spout which has improved the pourability of the contents, the pouch body is flat before filling the contents, but the spout is not filled. Due to the three-dimensional structure, accumulation efficiency at the time of distribution and storage is poor, and at the time of filling the contents, troubles in transporting the pouch inside the filling machine are likely to occur.
In some cases, a special transport device was required.

The present invention solves the above-mentioned problem of the conventional pouch with a spout. The pouch has a flat spout and a good accumulation efficiency at the time of distribution and storage. An object of the present invention is to provide a pouch with an opening maintaining member that can be formed into a three-dimensional structure in which there is no trouble in transportation and the pouring hole of the pouring port can be easily poured out with one touch at the time of pouring out contents.

[0005]

That is, the first aspect of the present invention is as follows.
As shown in FIG. 1 (a), the invention has a spout (110) in which the tip is cut to open a spout (111) when used.
As shown in FIG. 1 (b), in a flexible pouch (100) formed by sealing the peripheral portions of the front and back synthetic resin films, square side plates are provided on both sides of a square center plate (210). (220a, 220b) and hinge (201)
a, 201b) and one or more square notches (20) in each of the two hinges.
3) are provided so as to straddle and engage with the edges of the central plate and the edges of the side plates corresponding to both sides of the notch when the side plates on both sides are bent via the hinge. An opening maintaining member (2) made of a flat and rigid synthetic resin provided with engaging claws (211 and 221) to be engaged with each other.
00) as shown in FIG. 1 (a).
A pouch (10) with an opening maintaining member, which is inserted into the pouring hole (111) of (10).

Next, a second invention of the present invention is shown in FIG.
As shown in the figure, the tip is cut at the time of use and the pouring hole (11
As shown in FIG. 5 (b), in a flexible pouch (100) having a spout (110) for opening 1) and sealing the peripheral edges of the synthetic resin film on the front and back, a square central plate is provided. On both sides of (210), square side plates (22)
0a, 220b) are connected to each other via hinges (201a, 201b), and each of the two hinges is
One or more rectangular cutouts (203) are provided so as to straddle the cutouts, and the cutouts correspond to the edges of the central plates of the cutouts when the side plates on both sides are bent via the hinge. As shown in FIG. 5 (a), a flat and rigid synthetic resin opening maintaining member (200) provided with an engaging projection (212) for engaging with the cutout section (222) of the side plate is provided as shown in FIG. A pouch (10) with an opening maintaining member, wherein the pouch (10) is inserted into an outlet (111) of the outlet (110).

Next, according to a third invention of the present invention, as shown in FIG. 4 or FIG. 8, the side plates (220a, 220a, 220a, 220b) on both sides of the opening maintaining member (200) inserted into the spout hole of the spout portion are provided. 220
The pouch with an opening maintaining member according to the first invention or the second invention, characterized in that the outer side sides (223a, 223b) of b) have a taper in the pouring direction.

[0008]

According to the pouch with the opening maintaining member of the present invention, the spout for inserting the opening maintaining member is relatively flat like the pouch body until the contents are filled. Has a good accumulation efficiency, has no trouble in transporting the pouch on the content filling machine, and does not require a special device for transport.

Further, the opening maintaining member inserted into the spout of the pouch with the opening maintaining member of the present invention is provided with a hinge which can be bent with a finger from the outside of the pouch. Engagement claws and engagement protrusions etc. for maintaining the structure are provided, and when pouring out the contents,
An opening maintaining member made of a rigid synthetic resin having a three-dimensional structure is used to maintain a spout formed from a flexible synthetic resin film in a cylindrical opening state from the inside to secure a flow path for contents. In addition, the contents can be well poured out of the pouch outlet.

Further, the pouch with an opening maintaining member according to the present invention, in which the outer sides of the side plates on both sides of the opening maintaining member to be inserted into the spout hole of the spout portion taper in the pouring direction, is provided. Since the tip of the spout can be made thinner, it becomes easier to inject the contents when transferring the contents to a container having a narrow inlet.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A pouch with an opening maintaining member according to the present invention has a spout portion that cuts a tip when used to open a spout hole, and is formed by sealing a peripheral edge portion of a synthetic resin film on both sides. A bendable, flat plate-shaped opening maintaining member with appropriate rigidity is inserted into the spout hole of the pouch spout, and the opening maintaining member is bent and engaged when pouring out the contents, resulting in a three-dimensional structure. It is to be. This opening maintaining member is manufactured by injection molding using a thermoplastic resin such as polyethylene or polypropylene having a rigidity adapted to the purpose of use, and an adhesive is partially applied to the inner surface of the pouch outlet. Or by heat fusion and then inserted into the spout of the pouch.

The above-mentioned pouch is usually composed of a stretched polyester film layer / polyethylene layer structure, a stretched polyester film layer / unstretched polypropylene film layer structure, a nylon film layer / polyethylene layer structure, a nylon film layer / unstretched polypropylene film. Layer composition, nylon film layer / aluminum foil layer / polyethylene layer composition, nylon film layer / aluminum foil layer /
Laminated films such as unstretched polypropylene film layer structure, stretched polyester film layer / stretched nylon film layer / polyethylene layer structure, stretched polyester film layer / stretched nylon film layer / unstretched polypropylene film layer structure are superposed on the front and back, and the peripheral portion thereof Figure 1
As shown in FIG. 5A or FIG. 5A, a seal portion (101) is provided by a heat sealing method such as a heat sealing method. Depending on the purpose of use, a single-layer film may be used. In addition, the outlet (110) is usually
Forming a notch (111) for opening;
The form of the pouch is usually a well-known independence flat pouch,
A standing pouch that is self-supporting by providing a bottom member at the bottom may be used.

A pouch (10) with an opening maintaining member according to an embodiment of the present invention is, for example, a pouch (10) shown in FIG.
1) is inserted into the outlet (111) of the outlet (110) of FIG.
As shown in (b), square side plates (220a, 220b) are provided on both sides of a square center plate (210) via hinges (201a, 201b), respectively. One or more (two in the figure) square notches (203) are provided so as to straddle each, and the edge of the central plate and the side plate corresponding to the left and right sides of each of these notches are provided. When the side plates on both sides are bent via hinges at the edge of the opening, engaging openings (211 and 221) that engage with each other are provided correspondingly to each other. As shown in FIG. 2, the maintenance member (200) is provided on the inner surface of the spout (110) with the center plate (21).
The lower surface of 0) is usually manufactured by heat-sealing and inserting. And when pouring out the contents, the tip of the pouring port is cut to open a pouring hole, as shown in FIG.
The hinge (201) of the opening maintaining member (200) is pressed with a finger from the outside of the pouch (100), and the side plates (22) on both sides are pressed.
0) is bent inward at a substantially right angle to the center plate (210), and the engaging claw (211) at the edge of the notched center plate and the engaging claw (221) at the edge of the side plate are engaged. When they are combined, the plate-shaped opening maintaining member (200) becomes a three-dimensional structure with one touch, and the pouring hole of the spout (100) of the pouch (100) is maintained in an open state, and the flow path of the contents ( 11
2) is secured.

Next, a pouch (10) with an opening maintaining member according to another embodiment of the present invention is, for example, a spout (110) of a pouch (100) shown in FIG. 11
1), as shown in FIG. 5 (b), square side plates (220a, 22a) are provided on both sides of a square center plate (210).
0b) are connected to each other via hinges (201a, 201b), and each of these two hinges is straddled with one or more (two in the figure) rectangular notches (203). When the side plates on both sides are bent via hinges, the engaging projections (212) which engage with the cross-sections (222) of the corresponding side plate notches are provided at the edge portions of the center plates of these notches. ) Provided with an opening maintaining member (200) made of a synthetic resin having a flat plate shape and rigidity, as shown in FIG.
It is manufactured by inserting the lower surface of the center plate (210), usually by heat fusion, into the inner surface of the spout (110).
Then, when the contents are to be poured, the tip of the pouring port is cut to open a pouring hole, and as shown in FIG. 7, the hinge (201) of the opening maintaining member (200) is connected to the pouch (100). Of the side plate (220) is bent inward at a substantially right angle to the center plate (210), and the engaging projections (212) at the edges of the cut-out center plate and the side plates are pressed. When the cross section (222) of the notch is engaged, the flat plate-like opening maintaining member (200) becomes a three-dimensional structure with one touch, and the spout hole of the spout (110) of the pouch (100) is opened. And a flow path (112) for the contents is secured.

Further, in order to facilitate the transfer of the contents to another container having a narrow inlet, the inner surface of the spout of the pouch having a thinner spout tip as shown in FIG. 4 or FIG. The opening maintaining member (200) having an outer side (223a, 223b) tapering in the pouring direction on the outer side (223a, 223b) of the both side plates (220a, 220b), It may be worn and inserted.

In the practical test, the pouch with the opening maintaining member of the present embodiment has good accumulation efficiency at the time of distribution and storage, and does not cause trouble relating to the transport of the pouch on the content filling machine, and the filling efficiency. And the state of pouring out the contents from the spout during use was good.

The spouts formed in the pouch also have an obliquely projecting shape at the corners of the pouch as in the above-described embodiment, and also have an upwardly projecting shape at the upper corner or the upper central portion of the pouch. Alternatively, the pouch may be laterally protruded from a side corner, a center of the side, or a lower side of the pouch.

Further, a recess which swells toward the surface of the pouch accommodating the opening maintaining member can be formed at the spout of the pouch. The depression is formed in one or both of the front and back films of the pouch (preferably, a film on which the opening maintaining member is placed when manufacturing the pouch of the present invention). The holding member is large enough to accommodate the holding member, and has a depth equal to or greater than the thickness of the opening holding member.

[0019]

According to the pouch with the opening maintaining member of the present invention, the spout for inserting the opening maintaining member is relatively flat like the pouch main body, and the accumulation efficiency at the time of distribution and storage is good. No trouble in transporting the pouch even with a normal contents filling machine.

Further, the pouch with an opening maintaining member of the present invention comprises:
When the tip of the spout is cut off and opened during use, and the opening maintaining member inserted into the spout hole with the finger from the outside of the pouch, the hinge is bent and engaged with the engaging claw or the engaging protrusion, It can be changed to a three-dimensional structure with one touch, and the opening maintaining member of this three-dimensional structure secures a flow path and keeps the pouring hole in an open state, so that the contents can be easily poured out from the pouring port.

Further, the tip of the spout outlet of the pouch can be made thin so that the contents can be easily transferred to a container having a narrow inlet.

[Brief description of the drawings]

FIG. 1A is an explanatory view showing a structure of a spout portion of a pouch with an opening maintaining member according to an embodiment of the present invention, and FIG.
FIG. 4 is a plan view of the opening maintaining member.

FIG. 2 is a sectional view taken along line AA ′ of the pouch with an opening maintaining member shown in FIG. 1;

FIG. 3 is a cross-sectional view showing a state inside a spout when the contents of the pouch with an opening maintaining member shown in FIG. 1 are poured out.

FIG. 4 is a plan view of an opening maintaining member inserted into a spout of a pouch with an opening maintaining member according to another embodiment of the present invention.

FIG. 5A is an explanatory view showing a structure of a spout portion of a pouch with an opening maintaining member according to another embodiment of the present invention,
(B) is a plan view of the opening maintaining member.

FIG. 6 is a sectional view taken along line BB ′ of the pouch with an opening maintaining member shown in FIG. 5;

FIG. 7 is a cross-sectional view showing a state inside the spout when the contents of the pouch with the opening maintaining member shown in FIG. 5 are poured out.

FIG. 8 is a plan view of an opening maintaining member inserted into a spout of a pouch with an opening maintaining member according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10: Pouch with opening maintaining member 100: Pouch 101: Seal portion 110: Spout portion 111: Outflow hole 112: Flow path 113: Notch 200: Opening maintaining member 201: Hinge 202 ... Notch 203... Notch 204... Adhesion 210... Central plate 211, 221... Engagement claw 212.

Claims (3)

[Claims] 1. A flexible pouch having a spout opening for opening a spout hole by cutting a tip at the time of use, and sealing a peripheral portion of a synthetic resin film on the front and back sides. , Square side plates are continuously provided via hinges, and one or more square notches are provided so as to straddle each of the two hinges, and correspond to both sides of each of the notches. When the side plates on both sides are bent via the hinge at the edge of the center plate and the edge of the side plate,
An opening maintaining member characterized in that an opening maintaining member made of a synthetic resin having a flat plate shape and rigid and provided with engaging claws engaged with each other is inserted into an ejection hole of the spout portion. With pouch. 2. A flexible pouch having a spout opening for opening a spout hole by cutting a tip at the time of use, and sealing a peripheral edge of a synthetic resin film on the front and back sides. , Square side plates are connected to each other via a hinge, and one or more square notches are provided so as to straddle each of the two hinges, and an end of each central plate of the notches is provided. An opening maintaining member made of a flat and rigid synthetic resin having, at an edge thereof, an engagement projection which engages with a cutout section of a corresponding side plate when the side plates on both sides are bent via the hinge. The pouch with the opening maintaining member is inserted into the pouring hole of the pouring port. 3. An outer side of a side plate on both sides of an opening maintaining member to be inserted into a spout hole of the spout portion, wherein an outer side edge of the side plate has a taper in a pouring direction. A pouch with an opening maintaining member according to the above.