WO2002085727A1

WO2002085727A1 - Evacuable bag

Info

Publication number: WO2002085727A1
Application number: PCT/JP2002/003911
Authority: WO
Inventors: Yoshihiro Koyanagi
Original assignee: Kashiwara Seitai Co., Ltd.; Yugen Kaisha Appeal; Ishizaki Shizai Co., Ltd.
Priority date: 2001-04-20
Filing date: 2002-04-19
Publication date: 2002-10-31
Also published as: KR20030013392A; KR100562377B1; JP3579660B2; CN1458897A; JP2002321744A; US20040114837A1

Abstract

An evacuable bag having an evacuation passageway (4) formed in a bag main body (1) having a contents outlet/inlet portion (2) and composed of soft impermeable sheets (11, 12), wherein the evacuation passageway (4) comprises an opening (11a) formed in the sheet (11) and a soft cylindrical air passageway communicating with the opening (11a), the air passageway serving to cut off the flow of air from outside the bag main body (1) to the interior, and the nozzle of a vacuum cleaner or the like is inserted through the opening (11a) into the air passageway, whereby the air is discharged from the inside of the bag main body (1) into the outside. Since the bag main body (1) and the evacuation passageway (4) are soft, the entire evacuable bag can be made soft. Furthermore, there is no possibility of the air passageway (41) projecting out of the bag main body (1), and during use or storage, the air passageway (41) never becomes an obstacle. Further, since both are made of soft material, the bonded portions of the two will never separate even if an external force is applied thereto.

Description

Technical field

The present invention relates to an improvement in a degassing bag used for compressing and storing clothes, futons, and the like in a compact manner, and for maintaining the freshness of food. Background technology

For the purpose of compressing clothes and futons and storing them compactly, and maintaining the freshness of food, degassing bags with a degassing passage attached to the bag body made of a flexible synthetic resin sheet have existed conventionally. are doing.

How to use this degassing bag will be briefly described. Clothes, etc. are stored inside the deaeration bag, then the chuck at the storage entry / exit section is closed, and the nozzle of the vacuum cleaner is attached to the shutoff valve and sucked. Discharge air to the outside. Since this shutoff valve has a check function, the outside air can be maintained in the deaerated state without reentering the inside of the deaeration bag. The contents of clothes, futons, and the like can be reduced in volume by putting them in a degassing bag and evacuating the air inside the bag, so that the air contained in the contents is also discharged out of the bag. Therefore, it can be stored in a reduced volume integral. In addition, when food is stored, the air inside the degassing bag is discharged to the outside in the same manner as above, so that the package can be compactly packed and the food can be damaged by contact with air. Can be prevented.

There are various types of this type of shut-off valve, but rigid type synthetic resin is used for the type in which the nozzle of a vacuum cleaner such as a futon storage bag is attached to the shut-off valve and sucked. In general, the valve is opened and can be sucked by pressing the tip of the nozzle against the closing valve, and the valve closes when the nozzle is removed. It has become.

Although this type of shut-off valve has a reliable closing ability, it is a molded product with rigidity, so only the shut-off valve becomes an obstacle when folding unused degassing bags. In addition, there is a problem that the hard shut-off valve and the synthetic resin sheet of the flexible bag main body are separated from each other or the adhesive is loose. Also, even after the contents have been inserted and degassed, part of the shut-off valve protrudes to the outside, so that the protruding part of the shut-off valve becomes a hindrance, especially when stacking bags, etc. If something hit the stop valve, the valve would open and air could enter the bag.

In addition, an opening is provided in a flat cylindrical body made of a film made of a soft synthetic resin, a chuck or a bent passage is formed inside the cylindrical body, and the closure is used by being attached to the outside of a degassing bag. There is a valve. In this case, too, the shut-off valve protruded outside the degassing bag, so it was in the way, and sometimes the shut-off valve was caught by the shut-off valve.

Thus, the present invention maintains the deaeration property before and after use without deteriorating the compactness of the deaeration bag, and furthermore, the adhesion between the air passage for deaeration and the bag body is not easily released. The task is to provide a deaeration bag that can be used. Disclosure of the invention

The first invention of the present application is a bag body 1 comprising a flexible non-breathable sheet 11, 12 provided with an openable / closable storage object access portion 2, and a deaeration provided in the bag body 1. In the deaeration bag for storing a futon, clothing and food provided with the passage 4, the deaeration passage 4 has an opening 11 a provided in the non-breathable sheet 11 and an opening 11 a a flexible tubular air passage 41 attached to the inside of the bag body 1 so as to conduct to the a. When the air passage 41 cuts off the flow of air from outside to inside the bag body 1 Also, by inserting a rod 5 such as a nozzle of a vacuum cleaner into the air passage 41 from the opening 11a, it is possible to discharge air from the inside of the bag body 1 to the outside. The above problem is solved by providing a degassing bag characterized by the following.

In the degassing bag according to the first invention, since the flexible tubular air passage 41 is built in the flexible bag body 1, the entire degassing bag is made flexible. be able to. In addition, the air passage 41 does not protrude from the bag body 1, and the air passage 41 does not become an obstacle during use or storage. Further, since both the bag body 1 and the air passage 41 are made of a flexible material, even if an external force is applied, the bonded portion of the two does not come off.

The second invention of the present application is the above-described deaeration bag, wherein at least one of the air passages 41 is provided.

The portion 43j in contact with the opening 11a and the predetermined position 43k closer to the inside of the bag than the intermediate position C of the air passage 41 are fixed to the inner surface of the bag body 1. Provide the following.

This allows the air passage 41 to come out of the bag together with the rod 5 when the rod 5 such as the nozzle of the vacuum cleaner is inserted into the air passage 41 through the opening 11a and then pulled out. Can be prevented.

The third invention of the present application is the deaeration bag according to the second invention of the present application, wherein the air passage 41 is a shutoff valve having a flap 42 inside. Provided is a device characterized in that a flow of air from outside to inside of the body 1 is blocked. .

By the presence of the flaps 42, the flow of air from the outside to the inside of the bag body 1 can be surely shut off.

The fourth invention of the present application is the degassing bag according to the first invention of the present application, wherein the air passage 41 has at least one of the outer sheets 43a and 43b facing each other. The openings 43c, 43g located at both ends in the axial direction along the shaft, and both ends in the other axial direction intersecting with the axial direction and along at least one exterior sheet A substantially cylindrical passage having a flat cross section, which is constituted by the closing portions 4 3 e and 4 3 f located at the middle of the air passage 41, one of the exterior sheets 4 3 b The flap 42 is attached to the surface 43h on the air passage side from the one closed portion 43e to the other closed portion 43f along the outer sheet 43b, whereby the first reverse A stop valve and a second check valve are formed, and the first check valve is configured such that a part of the flap 42 is brought into close contact with the surface 43 i of the outer sheet 43 a on the air passage side to form an air passage 4. The second check valve is provided for shutting off the flow of air from one end to the other end in the air passage 41. The rod 5 is penetrated so as to connect the openings 43 c and 43 g at both ends of the air passage 41, and a part of the flap 42 and the exterior sheet 43. By releasing the contact with the air passage side surface 4 3 i of a, the air passage 41 becomes ventilated, and by pulling out the rod 5, the air That road 4 1 returns to the blocking state to provide what you feature.

As a result, both the deaeration of the inside of the bag and the filling of the inside of the bag with gas can be performed, and a shutoff valve capable of easily switching between the ventilation state and the shutoff state can be provided.

Further, the fifth invention of the present application is directed to a bag body 1 including a flexible non-breathable sheet 11, 12 provided with an openable / closable storage object entrance / exit portion 2, and provided in the bag body 1. In a degassing bag provided with a futon, clothing and food provided with a deaeration passage 4, the deaeration passage 4 has an opening 43 g opened to the outside of the bag body 1, and an opening 43 g. a flexible tubular air passage 41 that conducts to g,

The air passages 41 are provided with openings 43c, 43g at opposite axial ends along at least one of the facing exterior sheets 43a, 43b. A substantially cylindrical section having a flat cross section formed by closing portions 43e and 43f positioned at both ends in the axial direction, intersecting with the axial direction and along at least one outer sheet. Aisle,

In the middle of the air passage 41, the surface 43h of the one outer sheet 43b on the air passage side is provided along the outer sheet 43b from the one closed part 43e to the other closed part 43d. Three By attaching the flaps 42 over f, a first check valve and a second check valve are formed,

The first check valve is configured so that a part of the flap 42 comes into close contact with the surface 43 i of the outer sheet 43 a on the air passage side, so that the air flows from one end to the other end in the air passage 41. Similarly, the second check valve shuts off the flow of air from the other end to one end of the air passage 41,

The rod 5 is penetrated so as to connect the openings 43 c and 43 g at both ends of the air passage 41, and a part of the flap 42 and the exterior sheet 43 a on the air passage side 43 i The air passage 41 is ventilated by releasing the close contact with the air passage, and the air passage 41 is returned to the shut-off state by pulling out the rod 5. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a plan view of a degassing bag according to an embodiment of the present invention.

FIG. 2A is a cross-sectional view showing a state where the chuck according to the embodiment of the present invention is opened. FIG. 2B is a cross-sectional view showing a state where the chuck according to the embodiment of the present invention is closed.

FIG. 3A is a plan view of the shut-off valve according to the embodiment of the present invention. FIG. 3 (B) is a sectional view taken along line AA in FIG. 3 (A) of the shutoff valve according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3 (A) of the shut-off valve according to the embodiment of the present invention, in a state where the air passage is permeable.

FIG. 5 is a plan view of a degassing bag according to another embodiment of the present invention.

FIG. 6A is a plan view of a shut-off valve according to another embodiment of the present invention. FIG. 6 (B) is a cross-sectional view taken along line AA of FIG. 6 (A) of a shutoff valve according to another embodiment of the present invention. FIG. 7A is a plan view of a stop valve according to another embodiment of the present invention. FIG. 7 (B) is a cross-sectional view taken along line AA of FIG. 7 (A) of a shutoff valve according to another embodiment of the present invention.

FIG. 8A is a plan view of a shutoff valve according to still another embodiment of the present invention. FIG. 8 (B) is a cross-sectional view taken along the line A-A in FIG. 8 (A) of a shut-off valve according to still another embodiment of the present invention.

FIG. 9 is a view showing a degassing bag according to another embodiment of the present invention, wherein FIG. 8 (A) is a plan view, and FIG. 8 (B) is a view of FIG. FIG. 8 (C) is an enlarged cross-sectional view of a main part showing a cross-section BB of FIG. 8 (A) showing a closed state of the air passage.

FIG. 10 is an enlarged sectional view of a main part showing an example of a valve of a degassing bag according to another embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Next, an example of the degassing bag according to the embodiment of the present invention will be described. In this description, the direction of the storage / removal section 2 of the degassing bag 1 is set to the upper side, and the direction of the opposite side is set to the lower side.

FIG. 1 is a plan view of a degassing bag 1 of the present example. The degassing bag 1 is a rectangular bag in a plan view formed by at least two non-breathable sheets 11 and 12 made of resin or the like. The part 2 is provided, and the base 14 and the sides 15 and 16 are closed.

The front seat 11 is provided with a closing valve 4 for deaeration inside the bag. The surface of the sheets 11 and 12 may be printed with any characters or patterns such as a product name or an instruction manual, or the sheets 11 and 12 themselves may be subjected to antibacterial or deodorant treatment. In addition, the size of the degassing bag 1 may be arbitrarily determined according to an object such as clothing, blankets, futons and the like. Further, the closing valve 4 may be provided at any position of the degassing bag 1. The method of using the deaeration bag 1 will be described. First, the chuck 3 of the storage object entrance 2 is opened. Then, the stored items such as clothes are stored in the degassing bag 1 from the opened stored item entrance / exit portion 2 and the chuck 3 is closed. Thereafter, the deaeration bag 1 is compressed by manually wrapping it in, or a nozzle or the like of a vacuum cleaner is inserted into the opening 43g of the closure valve 4 and deaerated, thereby removing the bag from the closure valve 4. The air inside the air bag 1 is exhausted to the outside, and the air inside the air bag 1 is completed.

In this example, the chuck 3 provided as a closing means for the storage object entrance 2 is of a fitting type, and as shown in FIG. A concave strip 32 is formed on the opposite side.

Hooks 3 3, 3 4 are formed on the ridges 3 1, 3, respectively, and the ridges 3 2 have an airtight maintaining ridge 3 6, ridges 3. 1 is provided with a concave portion 37 for maintaining airtightness. The protruding ridge 31 is formed so that the two protruding pieces 31a and 31a are opposite to each other with the airtight maintaining recess 37 interposed therebetween. 32 a and 32 a are formed with the airtight maintaining projection 36 interposed therebetween.

Also, the width t35 of the passage portion 35 of the concave streak 32a is formed smaller than the width t33 of the hook portion 33. When the ridge 31 and the concave ridge 32 are pressed when the chuck 3 is closed, the hooking part 33 passes through the passage part 35 so as to push open, and the hooking part 3 4 of the concave ridge 3 2 Mate with. The mated state is shown in Fig. 2 (B), and there is almost no gap between the streaks 38, and it is maze-shaped, so that air from outside does not enter and the inside is kept airtight. The deaeration bag 1 can be closed as it is.

Note that the chuck 3 is not limited to the shape as shown in FIG. 2, and various types may be employed.

Further, a slider made of resin or the like may be provided on the outer side of the bag of the chuck 3 in order to easily close the chuck 3.

As shown in FIG. 3, the shut-off valve 4 has a flap 42 provided inside a substantially cylindrical air passage 41 having a flat cross section. The outer part of the shut-off valve in this example is composed of two opposing rectangular outer sheets 43a and 43b, and only one of the short sides of the outer sheets 43a and 43b is opened. Thus, an inner opening 43c is provided, and the remaining three sides 43d, 43e and 43 are bonded by a method such as thermocompression bonding. In addition, an outer opening 43g is provided near the short side closed portion 43d of the outer sheet 43a, and an inner surface of the front sheet 111 provided with an elliptical opening 111a. It is adhered to and is integrated. As a result, a substantially cylindrical air passage 41 having a flat cross section is formed from the opening 11a provided on the inner surface of the front seat 11 of the bag to the inner opening 43c of the shutoff valve 4. Has been done. Here, the shape of the opening 11a is not limited to an elliptical shape, but can be changed to various shapes. For example, the knob 11b as shown in FIG. The opening 11a may be easily opened by pulling up the knob 11b. Further, in FIG. 3, the shape of the opening 11a of the deaeration bag 1 and the shape of the outer opening 43g of the shut-off valve 4 are almost the same, but the shape is not limited thereto, and the outer opening 43g May be formed to be larger than the opening a1a, or the exterior sheet 43a itself corresponding to the opening 11a may be omitted (not shown). Further, the knob 11b is not limited to being provided at the opening 11a of the degassing bag 1 as described above, but may be provided at the outer opening 43g of the closing valve 4. Various changes may be made.

Note that, as shown in FIG. 3, the exterior sheet 43a and the front sheet 11 have at least an outer opening 43g (opening 11a) as shown in FIG. 3 to prevent the air passage 41 from being inverted. The peripheral portion 43j of the opening and the right side (the inside of the bag) of the middle line C of the air passage 41, preferably the right end 43k must be bonded.

The air passage may be formed by omitting the outer sheet 43 a to be bonded to the inner surface of the front sheet 11 and attaching the outer sheet 43 b directly to the front sheet 11. good.

Another example of the form of the closing valve 4 is as follows. The inside opening 43c and the outside opening 43g are provided by opening both sides of the side, and the surrounding 43e, 43m shall be bonded by a method such as thermocompression bonding. Thus, a substantially cylindrical air passage 41 having a flat cross section from the outer opening 43g to the inner opening 43c is formed. As shown in FIG. 5, the closing valve 4 of this configuration has an inner opening 4 3 c located inside the degassing bag 1 with respect to a side around the degassing bag 1 and an outer opening 4 3. g is attached to the outside.

Returning to the shut-off valve 4 of this example, the description will be continued. The surface 43h of the exterior sheet 43b on the air passage side is closed along the exterior sheet 43b from one closed portion 43e to the other. A rectangular flap 42 is attached to the part 43 f, and the center of the short side of the flap 42 is continuous from one end of the flap 42 to the other end, and the outer sheet 43 b is formed. One sheet consisting of a fixed part 42a bonded by a method such as thermocompression bonding, and flap parts 42b, 42c movable on both sides around the fixed part 42a. The flaps 4 2 b and 4 2 c are forced to pass through the air passage 41 by the airflow, so that the outer sheet 4 3 on which the flap 4 2 is not attached 4 3 a is located on the air passage surface 4 3 a The air passage 41 is shut off by being pressed against i. One of the flaps 4 2 b and 4 2 c blocks the flow of air to the outside of the bag, and the other flap 42 c connects the outside of the bag to the outside. It serves to cut off the flow of air. In other words, since the flap portions 4 2 b and 4 2 c are combined and function in both directions of the air passage 41, it is possible to use a method of maintaining the deaerated state of the air inside the bag, Conversely, it is also possible to use a method that fills the bag with air and maintains that state.

Therefore, a method of putting clothes, food, etc. into the inside of the degassing bag 1, injecting a gas having a sterilizing effect through the shutoff valve 4 into the bag, and then degassing the gas from the shutoff valve 4 is also used. It is possible, and sterilization and degassing can be easily performed with one bag without opening In this example, two rows of the flaps 42 are arranged so as to be orthogonal to the axis of the air passage 41.

In this example, the material of the outer sheets 43a, 43b and the flaps 42 is a soft synthetic resin film, and the flaps 42b, 42c of the flaps 42 are flexibly formed of the outer sheets 43. It can be in close contact with the surface 43 i of the air passage side of a. Therefore, no gap is generated between the flap 42 and the outer sheet 43a, and the airtight state inside the bag is kept good.

Further, the flap 42 is not limited to the shape described above, and can be implemented with various modifications. For example, a flap in which the flap portion is formed only on one side of the fixing portion 42 a May be arranged as opposed to each other or in opposition to each other, and the number of flaps 42 in the air passage 41 may be arranged independently or in parallel. Is also good.

As shown in FIG. 3 (B), the air passage 41 is usually provided with flaps 4 2 b and 42 c on both sides of the fixed portion 42 a. In both directions. Therefore, in order to allow the air passage 41 to be ventilated, the rod 5 should be connected between the inner opening 43c and the outer opening 43g of the air passage 41 as shown in FIG. This is performed by releasing the close contact between a part of the flap portions 42b and 42c and the surface 43i on the air passage side of the exterior sheet. As a result, the air passage 41 becomes permeable. Then, by pulling out the rod 5, the air passage 41 returns to the shut off state.

This rod 5 is optimally implemented as a suction nozzle for a vacuum cleaner, or as a small pump with a built-in motor and fan, but it is a hollow straw-shaped one that is manually degassed. Is also good. Moreover, you may implement as a solid rod.

The preferred embodiments of the air passage 41 and the shut-off valve 4 described above can be summarized as follows: Both sides of the facing outer sheets 43a, 43b are closed portions 43e, 43f which are closed. As a result, a substantially cylindrical air passage 41 having a flat cross section is formed. In a valve in which openings 43c and 43g are formed at both ends of the air passage 41 and a trap 42 is provided inside, the flap 42 has the one outer sheet 43b. A fixed portion 4 2a, a first flap portion 4 2b and a second flap portion 4 2c movable around the fixed portion 42 a. The air flow from the one end side to the other end side of the air passage 41 is shut off by being in close contact with the surface 43 i on the air passage side of the other exterior sheet 43 a. The flap portion 42c closes the surface 43i of the other exterior sheet 43a on the air passage side to block the flow of air from the other end to one end of the air passage 41. It is understood as a stop valve characterized by the following.

Further, in the above-mentioned closing valve, one of the facing exterior sheets 43a and 43b may be used as the sheet 11 constituting the sealable bag 1.

The closing valve 4 attached to the deaerating bag of the present invention is not limited to those described above, and various other changes can be made. For example, as shown in FIG. 6, among the two flaps 42 arranged in parallel in the air passage 41, the front flap 4 2X located on the side of the outer opening 43g is The flaps 4 2c are provided only on the side of the inner opening 4 3c.The inner flap 4 2Y located on the side of the inner opening 4 3c is connected to the inner opening 4 3c and the outer side. Flaps 42b and 42c may be provided on both sides of the opening 43g.

Incidentally, in the present embodiment, the dimension L1 of the flap portion 4 2c in the direction along the air passage at the front side flap 42X is 35 thighs, and the flap portion in the same direction at the back side flap 42Y. The dimension L 2 of 4 2b is 3 and the dimension L 3 of the flap section 4 2c is 16 thighs. The width L4 of the air passage 41 is 30 mm.

In the back side flap 4 2 Y, the dimension L 2 of the flap section 4 2 b is formed smaller than the dimension L 3 of the flap section 4 2 c. When inserted into the air passage 41 from the front, it faces the insertion direction of the rod 5 This is to prevent the flaps 4 2 b having the matching positional relationship from being reversed in the opposite direction and not functioning as the flaps 4 2.

It should be noted that the dimensions of the respective parts shown above are examples of implementation, and the positions and dimensions at which the flaps 42 are provided are not limited thereto, and various modifications can be made.

Further, as shown in FIG. 7, it is assumed that the flap 42 is not provided, and only the cylindrical air passage 41 having a flat cross section constituted by two opposing sheets 43a, 43b is provided. Is also good. In this case, since the opposing sheets 43a and 43b are in close contact with each other, it is possible to prevent outside air from entering the inside. By inserting the rod into the air passage 41 as described above, the air in the bag can be discharged. As shown in FIG. 8, the flap 42 attached to the exterior sheet 43 b in the air passage 41 has a flap portion 42 formed only in the direction toward the fixing portion 42 a and the outside of the bag. The valve may be provided with b to block the flow of air from outside the bag to the inside.

In addition, a closing valve 4 according to the present invention is further attached to a deaeration bag to which a valve of another type is attached. For example, one valve is evacuated by a vacuum cleaner, and the other valve is manually operated. Both valves may be used together, or only one of them may be selected and used so as to degas. For example, by applying to a large deaeration bag, deaeration can be performed quickly. FIG. 9 shows an example of a degassing bag 1 to which a valve of another type and a closing valve 4 according to the present invention are attached. Note that the hatched portions in the figure indicate the portions where the sheets are bonded.

As shown in FIG. 9 (A), the deaeration bag 1 is provided with a shutoff valve 4 and, in addition, a deaeration valve 6 and a deaeration port 7 near the bottom side 14.

The deaeration valve 6 is formed by a flap sheet 61. The flap sheet 6 1 is sandwiched between the front sheet 11 of the deaeration bag 1 and the back sheet 12, and the left side 15 to the right side 16 This is a sheet in a band shape in plan view, where two sheets are arranged in a landscape orientation in the section leading to. Air passages 62 are formed on the flapping sheet 61 by partitioning the sheets 11, 12, 61.

In the portion where the air passage 6 is formed, the upper end of the flap sheet 61 is bonded to the sheets 11 and 12 in a horizontal line shape (the flap sheets 61 are bonded together). No) The upper end of the deaeration valve 61a is formed. In addition, the flap sheet 61 is attached to the left and right portions sandwiching the upper end portion 61 a of the deaeration valve in a vertical line, thereby forming the deaeration valve side portion 61 b. The portion surrounded by these three adhesive portions becomes the air passage 62. Except for this portion, the other upper end portion 61c of the flap sheet 61 is in a state in which the sheets 11, 12, and 61 are all adhered and completely closed. The air flow at the time of air flows only through the air passage 62.

The deaeration port 7 is a portion of the bottom side 14 where the adhesion between the front sheet 11 and the back sheet 12 is interrupted, and the airflow from the deaeration valve 6 flows out of the bag through here. In the example shown in FIG. 9 (A), the deaeration valves 6 are provided at two places on the left and right, and the deaeration port 7 is provided at one place at the center, but the number of these installations is limited to this. Instead, they can be provided with appropriate changes.

The vertical cross section of the degassing valve 6 is shown in FIGS. 9 (B) and 9 (C). In the direction D from the inside of the deaeration bag 1 to the outside, the space between the flap sheets 61 is pushed and expanded according to the airflow, so that the air passage 62 is opened and air flows. Conversely, in the direction E from the outside to the inside, the air that is going to flow into the bag is stopped at the closing portion 63, whereby the flap sheets 61 adhere to each other, so that the air passage 62 is closed and the air flows. Absent. Therefore, since only one-way airflow is allowed, the state in which the air in the degassing bag 1 is evacuated can be maintained.

When actually using the deaeration bag 1, after storing the items such as clothing inside, hold the deaeration bag 1 by hand, etc., to deaerate through the deaeration valve 6 and the deaeration port 7. Do . If necessary, deaeration can also be performed from the shutoff valve 4 by using a vacuum cleaner or the like, so that the deaeration work can be performed efficiently.

The structure of the valve illustrated here is only an example. For a deaeration bag having a valve having various different structures, such as a valve having one flap sheet 61 and a separate check valve. It is also possible to attach a closing valve 4.

The structure of the valve illustrated here is only an example, and the valve includes a single flap sheet 61, a separate check valve, and, as shown in FIG. The valve seats 8 1, 8 2 are formed in a flat and substantially cylindrical shape between the front seat 11 and the back seat 12 of the above, and a flap 83 having the same structure as that shown in FIG. The closing valve 4 can be attached to a degassing bag having a valve of various different structures such as the provided valve 8. Since the present invention is configured and used as described above, it has the following useful effects.

In the first invention of the present application, before or after use, the adhesion between the air passage for deaeration and the bag main body is not easily detached without deteriorating the compactness of the deaeration bag, and the deaeration is maintained. It was possible to provide a deaeration bag capable of being used.

In the second invention of the present application, in addition to the above effects, after inserting a rod-shaped body such as a nozzle of a vacuum cleaner into the air passage from the opening, and pulling it out, the air passage is formed together with the rod-shaped body by a bag. This has the effect that it can be prevented from coming out.

In the third invention of the present application, in addition to the above-described effects, the presence of the flaps has an effect that the flow of air from the outside to the inside of the bag body can be surely shut off.

In the fourth invention of the present application, it is possible to perform both deaeration of the inside of the bag and filling of the inside of the bag with gas, and it is possible to easily switch between the ventilation state and the cutoff state.

Four Exerts its effect.

According to the fifth invention of the present application, it is possible to provide a degassing bag which can maintain the degassing property without impairing the compactness of the degassing bag before and after use, and can remove the inside of the bag. Both the air and the inside of the bag can be filled with gas, and the effect of being able to easily switch between the ventilation state and the cutoff state is exhibited.

Claims

The scope of the claims

1. A bag body (1) composed of a flexible non-breathable sheet (11) (12) having an openable / closable storage compartment (2), and a bag provided on the bag body (1). In a futon provided with an air passage (4), a degassing bag for storing clothes and food,

An opening (11a) provided in the sheet (11) is connected to an opening (11a) provided in the sheet (11), and a soft passage attached to the inside of the bag body (1) so as to communicate with the opening (11a). A soft tubular air passage (41),

This air passage (41) blocks the flow of air from the outside of the bag body (1) to the inside, and at the same time, the rod (5) such as the nozzle of the vacuum cleaner is moved from the opening (11a) through the air passage ( 41) A degassing bag characterized in that air can be discharged from the inside of the bag body (1) to the outside by inserting it into the bag.

2. At least a part (43j) of the air passage (41) that is in contact with the opening (11a) and a predetermined position closer to the bag inside than the intermediate position (C) of the air passage (41) (

43 k) are fixed to the inner surface of the bag body (1).

3. The air passage (41) is a shutoff valve with a flap (42) inside, which shuts off the flow of air from outside to inside of the bag body (1). 3. The degassing bag according to claim 2, wherein:

4. The air passage (41) has openings (43c) (43g) located at both ends in the axial direction along at least one of the facing sheets (43a) and (43b). (43e) (43f) crossing the axial direction and along at least one outer sheet and located at both ends in the other axial direction And a substantially cylindrical passage having a flat cross section.

In the middle of the air passage (41), the surface (43h) on the air passage side of one of the outer sheets (43b) extends from one closed portion (43 e) to the other along the outer sheet (43b). The first check valve and the second check valve are configured by attaching the flap (42) to the portion (43f),

The first check valve is configured such that a part of the flap (42) comes into close contact with the surface (43i) of the exterior sheet (43a) on the air passage side, so that one end of the air passage (41) is moved from the other end to the other end. Similarly, the second check valve shuts off the flow of air from the other end to the one end of the air passage (41).

Pass the rod (5) through the openings (43c) and (43g) at both ends of the air passage (41), and let the air flow between the part of the flap (42) and the exterior sheet (43a). By releasing the close contact with the roadside surface (43i), the air passage (41) is ventilated,

2. The deaerating bag according to claim 1, wherein the air passage (41) is returned to a closed state by pulling out the rod-shaped body (5).

5. A bag body (1) composed of a flexible and non-breathable sheet (11) (12) having an openable / closable storage compartment (2), and a bag provided on the bag body (1). 20 In a futon equipped with an air passage (4), a deaeration bag for storing clothes and food,

The deaeration passage (4) has an opening (43 g) opened to the outside of the bag body (1) and a flexible cylindrical air passage (41) communicating with the opening (43 g). The air passage (41) is provided with openings (43c) at opposite axial sides of at least one of the facing exterior sheets (43a) and (43b) along at least one exterior sheet. (43 g) and closing portions (43 e) and (43 f) intersecting with the axial direction and located along at least one armored sheet and located at both ends in the other axial direction. Thus, the configured cross section is a flat and substantially cylindrical passage,

In the middle of the air passage (41), the surface (43h) on the air passage side of one of the exterior sheets (43b) is moved from one closed portion (43e) along the exterior sheet (43b) to the other. By attaching the flap (42) over the closing portion (43f), the first check valve and the second check valve are configured,

A degassing bag characterized in that the air passage (41) is returned to a closed state by pulling out the rod (5).