JP2017024725A - Volume reducible storage bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage bag that can prevent impairment of an exhaust function caused when a non-return valve for exhausting air in the bag is clogged by a stored object in the bag, and can reliably and effectively reduce the volume of the stored object in a stored state.SOLUTION: A storage bag 1 comprises: a bag body 1A defining an interior space S and having an opening 18 opening to the outside; a non-woven fabric 20 fitted to an inner surface of the bag body 1A and partitioning the interior space S into a stored object storage space S1 for storing a stored object through the opening 18 and an air storage space S2 for storing air; and a non-return valve 30 provided in the bag body 1A so as to be communicated with the air storage space S2 and allowing only an air flow from the air storage space S2 to the outside of the bag body. The non-woven fabric 20 prevents entry of the stored object from the stored object storage space S1 into the air storage space S2 and allows entry of air from the stored object storage space S1 into the air storage space S2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a volume-reducible storage bag that can store and treat stored items, particularly filth such as excrement and vomit.

  When disasters such as earthquakes and typhoons occur, there are situations where toilets and sewage treatment facilities cannot be used. Under such circumstances, wastes excreted from humans can be stored in a storage bag (soil disposal bag) such as vinyl, collected in a large collection bag, and the collection bag can be sucked from the outside for batch processing. Has been done. That is, a large number of storage bags containing filth are enclosed in an accumulation bag and sucked to reduce the volume of the storage bags collected, thereby facilitating transportation and processing. Further, in such a storage bag, a chuck is formed in the vicinity of the opening so that the odor does not leak to the outside, and the chuck is opened to store the filth, and the chuck is closed after the storage.

  The storage bag used for the above-mentioned purposes is not generally used as a dedicated bag, and simply uses a known storage bag in which a chuck is formed as it is. However, in such a storage bag with a chuck, when performing the collective processing as described above, the air present in the interior together with the filth cannot be sucked completely, and the bulk as much as possible can be obtained in an accumulated state. It cannot be made smaller. Therefore, for example, as disclosed in Patent Document 1, it is conceivable to use a storage bag in which a chuck is formed in the vicinity of the opening and a check valve is formed in any one of the peripheral portions.

  According to such a storage bag, after the chuck is opened and the filth is stored, leakage of odor can be prevented by closing the chuck, and a large number of storage bags storing the filth are stored in the accumulation bag and sucked. The air in each storage bag is degassed via the check valve, and the bulk of the accumulation bag can be reduced.

JP 2000-344248 A

  However, when the storage bag provided with the chuck and the check valve as described above is used as a storage bag (soil treatment bag) for storing filth, the following problems occur.

  That is, when the chuck is closed and sealed in a state where dirt is contained in the bag, and suction is applied in a state where a large number of these are collected in the accumulation bag, the air remaining in the bag is discharged via the check valve. However, the filth contained in the bag may also move to the check valve along with the exhaust action, and the moved filth may clog the check valve and prevent exhaust by the check valve.

  Therefore, despite the check valve being provided, the air in the bag cannot be exhausted completely, and therefore the bulk of the accumulation bag cannot be reduced as much as possible, and is processed and transported. Inconvenience can occur.

  The present invention has been made paying attention to the above-mentioned problems, and prevents the check valve for discharging the air in the bag from being clogged with the contents in the bag and impairing the exhaust function, It is an object of the present invention to provide a storage bag capable of reliably and effectively reducing the volume in the storage state.

  In order to achieve the above-described object, a volume-reducing accommodation bag according to the present invention includes a bag body having an opening that defines an internal space and opens to the outside, an inner surface of the bag body, and the opening. A non-woven fabric that divides the internal space into a storage space in which the storage material is stored and an air storage space in which air is stored, and the bag body so as to communicate with the air storage space, A check valve that allows only the flow of air from the bag body to the outside, and the nonwoven fabric prevents intrusion of the contents from the contents storage space into the air storage space, and Intrusion of air from the storage space into the air storage space is allowed.

  In the configuration described above, the bag main body is sealed in a state in which the stored matter, for example, filth such as excrement and vomit, is stored in the storage space of the internal space of the bag main body, and then a suction force is applied from the outside. Alternatively, compress the bag body by crushing the bag body (when crushing individual bag bodies, and stacking multiple storage bags up and down, and storing the lower side by the weight of the storage bags stacked on the upper side When the bag is crushed), the air remaining in the sealed storage space passes through the nonwoven fabric, flows into the air storage space, and is discharged to the outside through the check valve. Thereby, volume reduction in the state which accommodated the accommodation can be achieved efficiently (to reduce the bulk of the accommodation bag).

  In addition, in the above-described suction operation or pressing operation by the action of external force, the stored item stored in the stored item storage space may try to move toward the check valve side. Since the intrusion of the stored material from the stored material storage space into the air storage space is prevented by the nonwoven fabric, the stored material does not reach the check valve located on the air storage space side. Does not clog the check valve and prevent exhaust by the check valve (the exhaust function is not impaired). Therefore, volume reduction of the storage bag in the storage state of the storage object can be achieved reliably and effectively.

  The volume-reducing containment bag with this structure is suitable for the disposal of filth, including excrement and vomit, especially during disasters such as earthquakes and typhoons, during nursing care in hospitals and welfare facilities, and climbing. It can be used for camping, camping, traffic jams, on-site work, etc., and is suitable as a disaster-prevention goods for emergencies. In addition to such applications, the present invention can be applied to contain substances used in the food, medical and industrial fields.

  According to the present invention, it is possible to prevent the check valve for discharging the air in the bag from being clogged with the contents in the bag and damaging the exhaust function, thereby reducing the volume of the contents in the accommodated state. Thus, a storage bag that can reliably and effectively be obtained is obtained.

The perspective view of the accommodation bag (a heat welding part is shown by the oblique line) which concerns on one Embodiment of this invention. Sectional drawing of the accommodation bag shown in FIG. Sectional drawing which shows the arrangement | positioning state in which the nonwoven fabric which should be heat-welded folded by V shape or U shape was pinched | interposed between the sheets (plastic film) which form a bag main body. Sectional drawing which shows an example of the laminated structure of the sheet | seat which forms a bag main body. (A) is sectional drawing of the accommodation bag with an air exhaust valve as other application examples of this invention, (b) is sectional drawing which shows the modification of (a).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a capacity-reducing storage bag (hereinafter referred to as a storage bag) 1 according to an embodiment of the present invention. Here, FIG. 1 is a perspective view showing the overall configuration of the storage bag, FIG. 2 is a cross-sectional view of the storage bag of FIG. 1, and FIG. 3 is V-shaped or U-shaped between sheets forming the bag body. Sectional drawing which shows the arrangement | positioning state in which the folded nonwoven fabric by heat welding was pinched | interposed, and FIG. 4 are sectional drawings which show an example of the laminated structure of the sheet | seat which forms a bag main body.

  As shown in FIGS. 1 and 2, the accommodation bag 1 according to the present embodiment includes a bag body 1 </ b> A that defines an internal space S that can be sealed. The bag body 1A is made, for example, by having a flexible synthetic resin sheet (plastic film sheet) 3a having a quadrangular shape, and heat-sealing the surroundings shown by oblique lines in FIGS. 1 and 2 with a heat bar or the like. Is done. Specifically, the bag main body 1A is formed by thermally welding the plastic film sheets 3a and 3a to each other at the heat welding portion 4a of the side edge portion 15 of the bag main body 1A and the heat welding portion 4b of the lower edge portion 16. In the present embodiment, the bag body 1A is configured to have a bag structure without a bottom surface by welding only two plastic film sheets 3a, 3a, but a separate bottom sheet made of a plastic film is further provided. The bag body 1A may be configured as a self-solid by thermally welding the bottom sheet and the two front side sheets 3a and 3a.

  The plastic film sheet 3a forming the bag main body 1A can be constituted by, for example, a three-layer structure as shown in FIG. Specifically, in the case of a three-layer structure, the inner welding layer 5 that is welded by heat (the side facing the counterpart plastic film sheet 3a to be welded) and an intermediate first layer that has both barrier properties and deodorizing properties. 1 barrier layer 6 and an outer second barrier layer 7 having both barrier properties and heat resistance.

  The welding layer 5 can be made of, for example, polyethylene or polypropylene. The first and second barrier layers 6 and 7 are composed of, for example, polyethylene terephthalate, nylon, aluminum foil or the like in a single layer structure, polyethylene terephthalate on which aluminum is deposited, or nylon laminated on aluminum foil. It is also possible to configure with layers. In addition, when accommodating the waste 40 (refer FIG. 2), such as excrement, as an accommodation thing like this embodiment, the barrier layers 6 and 7 are comprised with a non-permeable material so that it cannot be visually recognized from the outside. It is preferred that

  Further, the bag body 1A having such a structure includes an opening 18 for opening the internal space S to the outside, and preferably includes a sealing means 22 for sealing the opening 18. In this case, as for the sealing means 22, for example, a concave groove formed on the upper edge portion of the one side plastic film sheet 3a over almost the entire length, and an upper edge portion of the other side plastic film sheet 3a over the almost entire length It is possible to configure (chuck structure) from the concave groove formed and the convex portion engaged in a sealed state.

  The internal space S of the bag body 1A is partitioned by the nonwoven fabric 20 into a storage space S1 in which the filth 40 is stored and an air storage space S2 in which air is stored. In this case, the stored material storage space S1 is positioned on the opening 18 side, and the air storage space S2 is positioned on the opposite side of the stored material storage space S1 with respect to the nonwoven fabric 20 and is located at the lower corner of the bag body 1A. Is provided. Such a non-woven fabric 20 is preferably selected in consideration of the pressure applied to the non-woven fabric 20 by the filth 40, but in particular in this embodiment, the non-woven fabric 20 is the bag body 1A. The air storage space is disposed obliquely with respect to the edge 18a of the bag body that defines the opening 18 so as to extend between the side edge 15 and the lower edge 16 of the air bag. S2 is formed at the lower corner of the bag body 1A.

  In addition, the nonwoven fabric 20 of the present embodiment is formed in, for example, a substantially rectangular shape, and is a plastic film in a state of being folded into a V shape or a U shape with the longitudinal center axis as a fold as shown in FIG. While being sandwiched between the sheets 3a, 3a, it is thermally welded to the inner surface of the plastic film sheet 3a by the heat welded portion 20a at the peripheral portion thereof, thereby partitioning the stored material storage space S1 and the air storage space S2 without a gap. doing.

  The nonwoven fabric 20 prevents entry of the filth 40 from the storage material storage space S1 into the air storage space S2, and allows air to enter from the storage material storage space S1 into the air storage space S2. Yes. The nonwoven fabric 20 capable of fulfilling such a function is a material of, for example, a composite type in which an ultrafine fiber layer is sandwiched between spunbond fiber (for example, special polyester long fiber) layers, and captures the filth 40 to be accommodated. It is desirable to have high concentration, good air permeability, and excellent moldability, and not only the filth but also the optimal material form (for example, mesh) Fineness, fiber direction, weaving form, etc.) are selected.

  The bag body 1A is provided with a check valve 30 that allows only an air flow from the inside of the air storage space S2 to the outside of the bag body 1A so as to communicate with the air storage space S2. The check valve 30 has a welded portion 30a on the outer surface thereof, and the plastic film sheets 3a and 3a are welded so as to sandwich the welded portion 30a, whereby the check valve 30 is made of the plastic film sheet 3a. , 3a. In this case, for the check valve, for example, a simple structure in which an openable / closable sealing piece that opens toward the outside when the internal pressure of the bag body increases is installed in a flow path through which air passes. However, the structure is not particularly limited. Further, the check valve 30 of the present embodiment is provided at the side of the bag body 1A, but may be provided at the bottom of the bag body 1A. In short, the check valve 30 only needs to communicate with the air storage space S2 so that the check valve 30 can exhaust the air in the air storage space S2 to the outside of the bag body 1A.

  The air storage space S2 described above is intended for deaeration in the storage material storage space S1, and it is not necessary to ensure a large capacity relative to the volume of the bag body 1A. If the volume of the air storage space S2 is increased too much, the amount of storage is reduced, and if the volume of the storage space S2 is too small, the distance from the filth 40 becomes too close during exhaust (the nonwoven fabric 20 is close). Therefore, the volume of the air storage space S2 is preferably about 5 to 30% with respect to the volume of the internal space S of the bag body 1A.

Next, a procedure for reducing the volume by storing the filth 40 in the storage bag 1 having the above-described configuration will be described.
First, filth 40 such as excrement and vomit is accommodated in the storage space S1 of the internal space S of the bag body 1A through the opening 18. At this time, since the nonwoven fabric 20 extends between the side edge 15 and the lower edge 16 of the bag body 1A and is disposed obliquely with respect to the edge 18a (opening surface) of the opening 18, the nonwoven fabric 20 is accommodated through the opening 18. The filth 40 that enters the material storage space S1 and hits the nonwoven fabric 20 flows down along the slope of the nonwoven fabric 20, and as shown in FIG. 2, the lower side of the bag body 1A opposite to the air storage space S2 Accumulate in the corners. That is, at the beginning of the small amount of storage, the weight of the filth 40 can be prevented from constantly acting on the nonwoven fabric 20, and a sufficient air circulation path from the storage material storage space S1 to the air storage space S2 is ensured. Can do.

  When the filth 40 is accommodated in the storage space S1 in this way, the opening 18 is subsequently closed via the sealing means 22, and the internal space S of the bag body 1A is sealed (in the configuration without the sealing means, It may be sealed with rubber or the like). After that, when a suction force is applied from the outside to the storage bags 1 accommodated in a large number of collection bags (not shown), or a compressive force is applied to the bag body 1A by crushing the bag body 1A (for example, The individual bag body 1A is crushed, or a plurality of storage bags 1 are stacked one above the other, and the lower storage bag 1 is crushed by the weight of the storage bags 1 stacked on the upper side). The air remaining in S <b> 1 passes through the nonwoven fabric 20 and flows into the air storage space S <b> 2 and is discharged to the outside through the check valve 30. Thereby, volume reduction of the filth 40 in the accommodation state can be achieved (the bulk of the accommodation bag 1 can be reduced).

  In addition, when the external force is applied during such volume-reduced exhaust or under other circumstances, the filth 40 stored in the storage space S1 may move toward the check valve 30 side. Even in such a case, the inner space S is partitioned into the storage material storage space S1 and the air storage space S2 by the nonwoven fabric 20, and the entry of the filth 40 from the storage material storage space S1 into the air storage space S2 is performed. Therefore, the filth 40 does not reach the check valve 30 located on the air storage space S2 side. Therefore, the filth 40 clogs the check valve 30 and exhausts the check valve 30. It does not hinder (the exhaust function is impaired) or damage the check valve 30. Therefore, volume reduction of the filth 40 in the accommodated state can be achieved reliably and effectively.

  The storage bag 1 described above is suitable not only for storage of filth including excrement such as feces and vomit, but also for storage of substances used in the food, medical and industrial fields. You can also apply different things). Such another application example of the present invention is shown in FIG.

  5 (a) and 5 (b) are storage bags 1 ′, 1 ″ with air discharge valves (check valves) that are substantially the same as the above-described storage bag 1, and stored by the nonwoven fabric 20. For example, powder 50 such as metal powder, lime, or cement is accommodated in the storage space S1.

  In general, in the industrial field, there are substances that are not desirable to react with air (for example, substances used in the semiconductor field) and substances whose freshness is likely to deteriorate. 1 ″ is suitable for containing such a substance. Also, the problem of clogging related to the check valve 30 (which impairs the exhaust function) described above is inherent in such a substance. In addition, it is possible to effectively reduce the volume of the substance.

  FIG. 5A shows that the powder 50 is prevented from entering from the stored material storage space S1 into the air storage space S2, and air is allowed to enter from the stored material storage space S1 into the air storage space S2. In addition, the air discharge valve that contains the powder 50 that is substantially the same as the above-described containing bag 1 except that the optimum nonwoven fabric 20 is selected in accordance with the particle size, physical properties, etc. of the powder 50 to be contained. An attached storage bag 1 'is shown.

  Specifically, the inner space of the bag body 1 is formed of a non-woven fabric 20 disposed obliquely with respect to the edge 18a of the opening 18 on the inner surface of the bag body 1A. The air storage space S2 having a substantially triangular cross section in which air is accumulated is partitioned. Further, a check valve 30 that allows only air flow from the air storage space S2 to the outside of the bag body 1A is provided at the bottom of the bag body 1A so as to communicate with the air storage space S2.

  On the other hand, FIG.5 (b) is a modification of Fig.5 (a), and the nonwoven fabric 20 in this modification has the boundary surface (section screen) which delimits the accommodation storage space S1 and the air storage space S2. It arrange | positions so that the edge 18a of the opening 18 of 1 A of bag bodies may be opposed. Thereby, the nonwoven fabric 20 is arrange | positioned in parallel with the lower edge part 16 of the bag main body 1A so that it may extend between the side edge parts 15 of the both sides of the bag main body 1A, and cross-sections the air storage space S2 with a substantially rectangular shape. Formed below the main body 1A.

  Such storage bags 1 ′ and 1 ″ can also obtain the same operational effects as the above-described storage bag 1. Also, by stacking such storage bags, the weight of the air in each storage bag is increased. Will surely come off without causing bulkiness or collapse of cargo.

  As mentioned above, although embodiment of this invention has been described, this invention is not limited to above-described embodiment, In the range which does not deviate from the summary, it can implement variously. For example, the shape of the nonwoven fabric, the welding part, and the welding form are not limited to the above-described embodiment, and can be arbitrarily set according to the application. Moreover, in embodiment mentioned above, although filth and powder were illustrated as an accommodation target object, it is good also considering the substance in a foodstuff or the medical field as an accommodation target object. Further, the sealing means for sealing the opening of the bag body, the plastic film sheet constituting the bag body, and the structure of the check valve and the shape of the bag body are not limited to those of the above-described embodiment, and are arbitrarily set. it can.

DESCRIPTION OF SYMBOLS 1 Storage bag 1A Bag main body 18 Opening 20 Nonwoven fabric 22 Seal means 30 Check valve 40 Soil S Internal space S1 Storage space S2 Air storage space

Claims (4)

A bag body having an opening that defines an internal space and opens to the outside;
A non-woven fabric that is attached to the inner surface of the bag body and divides the internal space into a stored material storage space in which stored items are stored through the opening and an air storage space in which air is stored,
A check valve that is provided in the bag body so as to communicate with the air storage space, and that allows only air flow from the inside of the air storage space to the outside of the bag body;
With
The non-woven fabric prevents intrusion of contained material from the contained material storage space into the air storage space and allows air to enter from the stored material storage space into the air storage space. Volume-reducing storage bag.   The volume-reducing accommodation bag according to claim 1, wherein the bag body is made of a non-permeable material and used exclusively for filth.   The volume-reducing accommodation bag according to claim 1 or 2, wherein the bag body is provided with a sealing means for sealing the opening.   The volume-reducing accommodation bag according to any one of claims 1 to 3, wherein the nonwoven fabric is disposed obliquely with respect to an edge of a bag body that defines the opening.

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