CN1458897A - vent bag - Google Patents

Abstract

The invention provides an exhaust bag, comprising an exhaust passage (4) arranged on a bag body (1) which is provided with a storage material inlet and outlet part (2) and is formed by soft non-air-permeable films (11) and (12); the exhaust passage (4) comprises an opening (11a) provided in the film (11) and a flexible cylindrical air passage that communicates with the opening (11 a); the air passage cuts off the air flow flowing from the outside to the inside of the bag body (1), and can be inserted into the air passage from the opening (11a) through a nozzle of the electric dust collector, so that the air can be discharged from the inside to the outside of the bag body (1). Since the bag body (1) and the exhaust passage (4) are soft, the exhaust bag as a whole can be made soft. The air passage (41) is not exposed from the bag body (1), and the air passage (41) does not become an obstacle when the bag is used or stored. And the adhesive part of the two parts can not be separated even if external force is applied.

Description

vent bag

technical field

The present invention relates to an improvement of a vent bag for compact storage of clothes and bedding after compression, or for keeping food fresh.

Background technique

For the purpose of compressing and storing clothes and quilts or keeping food fresh, a vent bag with an exhaust passage installed on a bag made of soft synthetic resin film has existed in the past.

Briefly describe the usage method of this air vent bag. Store clothes, etc. in the exhaust bag. Afterwards, close the chuck of the storage entrance and exit, connect the suction pipe of the electric vacuum cleaner to the shut-off valve, and suck the air in the exhaust bag from the shut-off valve. Air is exhausted to the outside. The shut-off valve has a reverse closing function, so the external gas will not enter the exhaust bag again, and the airtight state can be maintained. And because the contents such as clothes and quilts are packed into the exhaust bag, when the air in the bag is extracted, the air contained in the contents is also discharged out of the bag, so the volume can be reduced and stored compactly.

At the same time, when storing food, as above, since the air in the vent bag is exhausted to the outside, it can be packed compactly, and it can prevent the food from rotting due to contact with the air.

There are various forms of this shut-off valve. It is suitable for connecting the suction nozzle of electric vacuum cleaners such as bedding collection bags to the stop valve for suction. It is generally made of rigid synthetic resin. It can be sucked by being opened, and the valve is closed when the suction nozzle is removed.

The shut-off valve of this type is reliable in its ability to close. However, since it is a rigid product, the shut-off valve itself becomes an obstacle when folding and storing an unused air bag. In addition, there is a problem that the adhesion between the hard shut-off valve and the soft synthetic resin film is easily detached. Also, after putting in the contents to exhaust air, since a part of the shutoff valve protrudes from the outside, especially when stacking the exhaust bags, etc., the protruding part of the shutoff valve will become an obstacle, even when an object touches it. The shut-off valve is then opened and air enters the vent bag.

In addition, an opening is provided in a flat cylindrical body made of a soft synthetic resin film, a clip and a curved passage are formed inside the cylindrical body, and a shut-off valve is installed on the outside of the air bag for use. Since the stop valve is exposed outside the air bag, it may become an obstacle, and the part of the stop valve may be caught and the part of the stop valve may be torn off.

Contents of the invention

The subject of the present invention is to provide an air vent bag that does not reduce the compactness of the air vent bag before and after use, and the air passage for exhaust air and the bag body are hard to separate from the adhesive, so that the air vent performance of the bag can be maintained. .

The first aspect of the present invention provides the following air vent bag to solve the above-mentioned problems. An air vent bag includes: a bag body that has a store entry and exit portion 2 that can be opened and closed, and is formed by soft, non-breathable films 11 and 12 1, and the exhaust passage 4 provided on the bag body 1 is used to store bedding, clothes and food; it is characterized in that,

The exhaust passage 4 includes: an opening 11a provided on the above-mentioned film 11, and a flexible cylindrical air passage 41 installed inside the bag body 1 so as to communicate with the opening 11a;

The air passage 41 can cut off the airflow flowing from the outside of the bag body 1 to the inside, and by inserting the rod-shaped body 5 such as the nozzle of an electric vacuum cleaner into the air passage 41 from the opening 11a, air can be drawn from the inside of the bag body 1. Exhaust from the inside to the outside.

In the vent bag related to the first aspect of the present invention, since the soft cylindrical air passage 41 is embedded in the soft bag body 1, the whole vent bag can be made soft. Furthermore, 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. In addition, since both the bag body 1 and the air passage 41 are made of a soft material, even if an external force is applied, the bonded portion of both will not be separated.

The second aspect of the present invention provides the air vent bag as described above, which is characterized in that in the air passage 41, at least the part 43j that is in contact with the opening 11a and the part 43j that is close to the inner side of the bag from the middle position C of the air passage 41 The predetermined position 43k is fixed on the inner surface of the bag body 1 .

In this way, when the rod-shaped body 5 such as the suction nozzle of the electric vacuum cleaner is inserted into the air passage 41 through the opening 11a and then pulled out, the air passage 41 and the rod-shaped body 5 can be prevented from going out of the bag together.

The third aspect of the present invention provides the air vent bag related to the second aspect of the present invention, which is characterized in that the air passage 41 is a shut-off valve with a valve 42 inside, and the air flow from the outside of the bag body 1 to the outside is cut off by the valve 42 . Internal air flow.

Due to the existence of the valve 42, the air flow from the outside of the bag body 1 to the inside can indeed be cut off.

The fourth aspect of the present invention provides the air vent bag related to the first aspect of the present invention, wherein the air passage 41 is formed by: along at least one of the opposite outer envelopes 43a, 43b, located on an axis The openings 43c and 43q at both ends of the direction; and the closed parts 43e and 43f that intersect with the aforementioned axial direction and are located along at least one outer envelope, and are formed by the closing parts 43e and 43f located at the two ends of the other axial direction. The section is flat and slightly cylindrical. path;

In the middle of the air passage 41, on the surface 43h of the air passage side of an outer envelope 43b, a closed portion 43e is transitioned to another closed portion 43f along the outer envelope 43b, and an air valve 42 is installed, thereby forming The first shut-off valve and the second shut-off valve;

A part of the air valve 42 of the first shutoff valve is in close contact with the surface 43i on the air passage side of the outer envelope 43a, thereby cutting off the airflow flowing from one end to the other end on the air passage 41, and the second shutoff valve similarly cut off the air flow flowing from the other end to one end on the air passage 41;

The rod-shaped body 5 is penetrated so as to connect the openings 43c and 43q at both ends of the air passage 41, and the close contact between a part of the exhaust valve 42 and the surface 43i on the air passage side of the outer envelope 43a is released, so that the air passage 41 becomes Ventilation status;

By pulling out the rod-shaped body 5, the air passage 41 is returned to the cut-off state.

Therefore, it is possible to provide a shutoff valve capable of degassing the inside of the bag and filling the inside of the bag with gas, and capable of easily switching between the ventilation state and the shutoff state.

The fifth aspect of the present invention provides an air vent bag, an air vent bag, comprising: a bag body 1 with a switchable storage access part 2 and formed by soft non-breathable films 11 and 12; The exhaust passage 4 provided on the bag body 1 is used to store bedding, clothes and food;

The exhaust passage 4 includes: an opening 43q opened outside the bag body 1 and a flexible cylindrical air passage 41 communicating with the opening 43q;

The air passage 41 is composed of openings 43c, 43q located at both ends of an axial direction along at least one of the opposing outer envelopes 43a, 43b, and crossing the above-mentioned axial direction, and along at least one outer envelope. Membrane, formed by the sealing parts 43e and 43f located at the two ends of the other axial direction, the cross-section is flat and slightly cylindrical;

In the middle of the air passage 41, on the air passage side surface 43h of an outer envelope 43b, along the outer envelope 43b from one closed portion 43e to the other closed portion 43g, an air valve 42 is installed, thereby forming The first shut-off valve and the second shut-off valve;

A part of the valve 42 of the first cutoff valve is in close contact with the surface 43i on the air passage side of the outer envelope 43a, thereby cutting off the air flow flowing from one end to the other end on the air passage 41; and the second cutoff valve is the same. Cut off the air flow flowing from the other end to one end on the air passage 41;

The rod-shaped body 5 is penetrated in such a way as to connect the openings 43c and 43q at both ends of the air passage 41, and the close contact between a part of the valve 42 and the surface 43i on the air passage side of the outer envelope 43a is released, so that the air passage 41 becomes ventilated. state;

By pulling out the rod-shaped body 5, the air passage 41 is returned to the cut-off state.

Description of drawings

Fig. 1 is a plan view of an air vent bag according to an embodiment of the present invention.

Fig. 2(A) is a cross-sectional view of an open state of the chuck according to the embodiment of the present invention. Fig. 2(B) is a cross-sectional view of the closed state of the chuck according to the embodiment of the present invention.

Fig. 3(A) is a plan view of the cutoff valve according to the embodiment of the present invention. Fig. 3(B) is a sectional view taken along line A-A of Fig. 3(A) of the shutoff valve according to the embodiment of the present invention.

Fig. 4 is a sectional view along A-A of Fig. 3(A) when the shut-off valve according to the embodiment of the present invention is in a state where the air passage can be ventilated.

Fig. 5 is a plan view of the vent bag according to the embodiment of the present invention.

Fig. 6(A) is a plan view of a cutoff valve according to another embodiment of the present invention. Fig. 6(B) is a cross-sectional view along A-A of Fig. 6(A) of a cutoff valve according to another embodiment of the present invention.

Fig. 7(A) is a plan view of a cutoff valve according to another embodiment of the present invention. Fig. 7(B) is a sectional view taken along line A-A of Fig. 7(A) of a cutoff valve according to another embodiment of the present invention.

Fig. 8(A) is a plan view of a shutoff valve according to another embodiment of the present invention. Fig. 8(B) is a sectional view taken along line A-A of Fig. 8(A) of a cutoff valve according to another embodiment of the present invention.

Fig. 9 is a diagram showing an air vent bag according to another embodiment of the present invention, Fig. 8(A) is a plan view, and Fig. 8(B) is a summary of a B-B sectional view of Fig. 8(A) showing an open state of an air passage. Part enlarged cross-sectional view, Fig. 8 (C) is the enlarged cross-sectional view of the main part showing the B-B section of Fig. 8 (A) showing the closed state of the air passage.

Fig. 10 is an enlarged sectional view of main parts showing an example of a valve of a vent bag according to another embodiment of the present invention.

Detailed ways

The air bag related to the embodiment of the present invention will be described with examples below. In addition, in this description, the direction of the side of the stored goods in and out part 2 of the vent bag 1 is referred to as upward, and the direction of the opposite side thereof is referred to as downward.

Fig. 1 is a plan view of the vent bag of this example. Described exhaust bag 1 is formed by at least two non-breathable films 11, 12 made of resin etc., is a bag viewed as a rectangle when viewed from above, and a collection entry and exit portion 2 is set on the upper edge 13 as the short side of the bag; the bottom edge 14 and the sides 15, 16 are closed.

At the same time, on the front side film 11, a stop valve 4 for exhausting the inside of the bag is provided.

In addition, on the surfaces of the films 11 and 12, arbitrary characters and patterns such as product names and instructions for use may be printed, and the films 11 and 12 themselves may be antibacterial and deodorizing. In addition, the size of the exhaust bag 1 can be arbitrarily determined according to articles such as clothes, felt cloth, and quilts. Furthermore, the shutoff valve 4 may be provided at any position of the exhaust bag 1 .

The method of using the vent bag 1 will be described below. First let the collet 3 of the storage in and out part 2 be in an open state, then from the store in and out part 2 in the open state, store things such as clothes in the vent bag 1 and close the collet 3. Afterwards, roll up and compress the exhaust bag 1 by hand or insert the suction nozzle of the electric vacuum cleaner into the opening 43q of the shut-off valve 4 to exhaust, so that the air in the exhaust bag 1 is discharged from the shut-off valve 4. Exhausted to the outside, the exhaust state in the exhaust bag 1 is completed.

The collet 3, which is arranged as the closing part of the stowage access part 2, is a mating type in this example. As shown in FIG. 2(A), it is formed by a convex line 31 on one side inside the film and a concave line 32 on the opposite side.

Hooking portions 33 and 34 are respectively formed on the convex line portion 31 and the concave line portion 32 . In addition, convex portions 36 for maintaining airtightness are formed in the grooved portion 32 , and concave portions 37 for maintaining airtightness are formed in the convex portion 31 . In addition, the two convex pieces 31a, 31a of the protruding part 31 are formed in opposite directions to sandwich the concave part 37 for keeping airtight, respectively, and the concave strips 32a, 32a of the concave part 32 are respectively sandwiched for the convex part for keeping airtight. 36 formed.

In addition, the width t35 of the passage portion 35 of the grooved line 32 a is slightly smaller than the width t33 of the hook portion 33 . When chuck 3 is closed, press convex strip portion 31 and concave strip portion 32, then hook portion 33 presses open passage portion 35 and passes through, and the hook portion 34 of concave strip portion 32 bites, and the state of snapping is shown in Fig. 2 (B ) shows, therefore, there is almost no gap between the strips 38, and forms a labyrinth, so the air from the outside can not enter, and the air-tight sealing air bag inside can be kept always.

The chuck 3 is not limited to the shape shown in FIG. 2, and various forms may be adopted.

In addition, in order to close the chuck 3 easily, a slideway made of resin or the like may be provided outside the bag of the chuck 3 .

As shown in FIG. 3 , the shutoff valve 4 is provided with a valve 42 inside an air passage 41 having a flat cross section and a substantially cylindrical shape.

The outer portion of the shutoff valve 4 of this example is formed by two opposing rectangular outer envelopes 43a, 43b, and only one of the short sides of these outer envelopes 43a, 43b is opened to form an inner opening 43c. , the remaining three sides around 43d, 43e, 43f are bonded by methods such as thermocompression bonding. In addition, near the short-side closed portion 43d of the outer covering film 43a, an outer opening 43q is provided, and the elliptical opening 11a is integrally bonded to the inner surface of the provided front film 11 . Therefore, from the opening 11a provided on the inner side of the front film 11 of the bag to the inner opening 43c of the shutoff valve 4, an air passage 41 having a flat cross section and a substantially cylindrical shape is formed. Here, the shape of the opening 11a is not limited to an ellipse, and can be changed into various shapes. For example, as shown in FIG. 6, it may be provided in the shape of the handle 11b, and the opening part 11a can be opened easily by lifting the said handle 11b. And, in Fig. 3, the shape of the opening 11a of the exhaust bag 1 and the outer opening 43q of the stop valve 4 are substantially the same, but it is not limited to this, and the outer opening 43q can also be made smaller than the opening 11a. It needs to be larger, or the outer covering film 43a itself of the portion facing the opening 11a can be omitted (not shown). In addition, the handle 11b is not limited to be provided on the opening 11a of the above-mentioned exhaust bag 1, but may also be provided on the outer opening 43q of the shutoff valve 4, and various modifications and implementations are possible.

Also, in order to prevent the air passage 41 from being folded back by the outer covering film 43a and the front side film 11, as shown in FIG. The centerline C of the bag is on the right side (the bag interior side), preferably the right end 43k is bonded.

In addition, the outer cover film 43a bonded to the inner surface of the front side film 11 may be omitted, and the outer cover film 43b may be directly attached to the front side film 11 to form an air passage.

The form of the cut-off valve 4 will be illustrated again with an example. By opening both sides of the short sides of the outer envelope films 43a, 43b, an inner side opening 43c and an outer side opening 43g are provided, and the surroundings 43e, 43f are bonded by thermocompression bonding or the like, and thus From the outer opening 43q to the inner side opening 43c, an air passage 41 having a flat cross section and a substantially cylindrical shape is formed. As shown in Figure 5, the shut-off valve 4 of the embodiment of the present case faces the edge around the exhaust bag 1, and the opening 43c on the inner side is located in the inside of the exhaust bag 1; external.

Continuing to describe the shut-off valve 4 of this example, on the surface 43h of the air passage side of the outer envelope 43b, along the outer envelope 43b, from one closed portion 43e to the other closed portion 43f, a rectangular valve 42 is installed. The center of the short side of the valve 42 continues from one end of the valve 42 to the other end. The valve 42 is a piece of film formed by a fixed part 42a bonded to the outer envelope 43b by methods such as thermocompression bonding, and two movable valve parts 42b and 42c centered on the fixed part 42a. The valve parts 42b, 42c are pressed against the surface 43i of the air passage side of the outer envelope 43a on the side where the valve 42 is not installed under the action of the air flow that flows through the inside of the air passage 41 and is to be extracted. The air passage 41 is cut off.

Also, one of the valve parts 42b, 42c cuts off the air flow from the outside of the bag to the inside of the bag; the other valve 42c cuts off the air flow from the inside of the bag to the outside of the bag. In a word, because the valve portions 42a, 42c act on the two directions of the air passage 41 cooperatively respectively, so this method of keeping the air inside the bag discharged is feasible, otherwise, the air is filled into the inside of the bag to keep the bag inside. The usage method of state is also possible.

Therefore, put clothes and food etc. into the inside of the exhaust bag 1, pass through the shut-off valve 4, inject the gas with sterilization and sterilization effect into the bag, and then remove the gas from the shut-off valve 4 It is also feasible; with a bag, it can be easily sterilized and exhausted without opening.

Also, in this example, the air valves 42 perpendicularly intersect the axis of the air passage 41 and are arranged in two rows.

The material of the outer envelopes 43a, 43b and the valve 42 is a soft synthetic resin film in this example, and the valve parts 42b, 42c of the valve 42 can be flexibly adhered to the air passage side surface 43i of the outer envelope 43a. Therefore, there is no gap between the air valve 42 and the outer envelope 43a, and the airtight state inside the bag can be kept good.

In addition, regarding the valve 42, it is not limited to the shape mentioned above, and various changes can be implemented. For example, the valve part can be made into a group with two valves that are only formed on one side of the fixed part 42a. Relatively or oppositely arranged; Moreover, as for the number of the valves 42 arranged in the air passage 41, one may be arranged alone, or a plurality of them may be arranged in parallel.

Regarding the air passage 41, the fixed portion 42a is at the center, and the valve portions 42b, 42c are attached to both sides, so the air passage 41 is cut off in both directions as shown in FIG. 3(B). Therefore, to make the air passage 41 in a ventilated state, as shown in FIG. The air path side surface 43i of the outer envelope is in close contact. In this way, the air passage 41 is in a state where air can be ventilated. In addition, when the rod-shaped body 5 is pulled out, the air passage 41 returns to the cut-off state.

Rod-shaped body 5 is suitable for adopting the suction nozzle of electric vacuum cleaner and the small pump with built-in motor and fan, and it is also possible to use a hollow suction pipe to carry out exhaust with manpower. Furthermore, solid rods can also be used.

Summarizing the above preferred embodiments of the air passage 41 and the shut-off valve 4, understood as a shut-off valve as follows. Since the two sides of the opposite outer envelopes 43a, 43b are made into closed sealing parts 43e, 43f, thereby forming a substantially cylindrical air passage 41 with a flat section, at both ends of the cylindrical air passage 41 While forming the openings 43c and 43q, a valve with a valve 42 is provided inside, wherein the valve 42 includes: a fixed part 42a mounted on the aforementioned one outer envelope 43b, and a second movable centering on the fixed part 42c. The first valve part 42b and the second valve part 42c; the first valve part 42b is in close contact with the surface 43i on the air passage side of the other outer envelope 43a, thereby blocking the flow of air flowing from one end to the other end of the air passage 41. Furthermore, the airflow flowing from the other end to the one end of the air passage 41 is blocked by the second valve portion 42c in close contact with the air passage side surface 43i of the other outer envelope film 43a.

In addition, for the above-mentioned shut-off valve, one of the films 43a of the opposing outer wrapping films 43a, 43b can also be implemented as the film 11 constituting the sealable bag 1 .

The shut-off valve 4 attached to the vent bag of the present invention is not limited to what has been described above, and various changes other than that can be made. For example, as shown in FIG. 6, in the air passage 41, among the two valves 42 arranged side by side, the valve 42X located on the front side near the outer opening 43q may be provided with the valve part 42c only on the side of the inner opening 43c. For the valve 42Y located on the back of the inner opening 43c, valve parts 42b, 42c may be provided on both sides of the inner opening 43c and the outer opening 43q.

Incidentally, in this embodiment, the dimension L1 of the valve portion 42c in the direction of the air passage near the valve 42X is 35 mm. The dimension L2 of the valve portion 42b in the same direction near the inner valve 42Y is 3mm, and the dimension L3 of the valve portion 42c is 16mm. Also, the width dimension L4 of the air passage 41 is 30 mm.

The size L2 of the valve 42Y and the valve part 42b on the inside is smaller than the size L3 of the valve part 42c. This is for preventing the rod-shaped body 5 from being inserted into the air passage 41 from the outer opening 43d, facing the rod-shaped body 5 in the direction of insertion. The positional relationship of the valve 42b turns back in the opposite direction and cannot play the role of the valve 42.

In addition, the above-mentioned dimensions of each part are an example, and do not limit the position and size of the air valve 42, and various changes can be made.

Furthermore, as shown in FIG. 7 , instead of providing the valve 42 , it is possible to provide the air passage 41 itself having a flat cylindrical cross section formed by two opposed films 43 a and 43 b . At this time, since both the opposing films 43a and 43b are in close contact, it is possible to prevent outside air from entering the inside. And, as mentioned above, by inserting the rod-shaped body into the air passage 41, the air in the bag can be discharged.

In addition, as shown in FIG. 8, in the air passage 41, the air valve 42 installed on the outer envelope 43b can also be used as having: a fixed portion 42a and an air valve portion 42b formed only toward the outside of the bag to cut off the flow from the outside of the bag. Constructed valve for internal air flow.

In addition, the shut-off valve 4 according to the present invention can also be installed on an air bag provided with other types of valves. For example, use one valve for vacuum cleaner exhaust and another valve for manual exhaust, and use both valves, or choose which valve to use. This can be applied, for example, to large vent bags, so that rapid venting is possible.

FIG. 9 shows an example of a vent bag 1 equipped with a valve of another type and a shutoff valve 4 according to the present invention. In addition, hatching in the figure shows the part to which the film was adhered.

As shown in FIG. 9A , a shut-off valve 4 is provided on the vent bag 1 and an exhaust valve 6 and an exhaust port 7 are provided at positions close to the bottom edge 14 .

The exhaust valve 6 is formed by a valve membrane 61 . The valve film 61 is sandwiched between the front side film 11 and the back side film 12 of the vent bag 1, and two pieces are overlapped horizontally in the section from the left side 15 to the right side 16, and are strip-shaped films viewed from above. For the valve film 61 , an air passage 62 partitioned by the films 11 , 12 , 61 is formed.

In the part where the air passage 62 is formed, the upper end of the valve film 61 is bonded to the film 11, 12 in a horizontal direction (the valve film 61 is not bonded to form the upper end portion 61a of the exhaust valve. And, for The left and right parts of the exhaust valve upper end portion 61a are sandwiched, and the exhaust valve side portion 61b is formed due to the vertical linear bonding of the valve film 61. The part surrounded by these three bonding portions becomes the air passage 62. And, Except for this part, the other upper ends 61c of the valve membrane 61 are completely closed by bonding the membranes 11, 12, 61. Therefore, the airflow during exhaust flows only through the air passage 62.

The air outlet 7 is at the bottom 14, and is a part that separates the bonding of the front mold 11 and the back film 12 in the middle. The air flow from the exhaust valve 6 flows out of the bag through here.

In addition, in the example shown in FIG. 9(A), the exhaust valve 6 is provided at two places on the left and right, and the exhaust port 7 is provided at one place in the center. However, the number of these installations is not limited, and the installation can be appropriately changed.

The vertical section of the exhaust valve 6 is as shown in FIG. 9(C). In the direction D from the inside of the vent bag 1 to the outside, since the valve films 61 are opened according to the air flow, the air passage 62 is opened and air flows. Conversely, in the direction E from the outside to the inside, the inflow of air into the bag is stopped at the end point 63 . Therefore, the valve membranes 61 are in close contact with each other, so the air passage 62 is closed and air does not flow. Because the air flow in only one direction is allowed, the pumping state of the air in the vent bag 1 can be maintained.

When actually using the exhaust bag 1 , after the collection of clothes and the like is stored inside, the exhaust bag 1 is pressed by hand to exhaust through the exhaust port 7 of the exhaust valve 6 . Further, if necessary, exhaust gas can also be performed from the shutoff valve 4 using a vacuum cleaner or the like. Exhaust efficiency is good.

Also, the configuration of the valve shown here as an example is a general example. The shut-off valve 4 can also be installed for an air bag having valves of various configurations such as a valve formed by a valve membrane 61 and other types of valves.

Moreover, the valve structure exemplified here is just a common example, for those having: a valve formed by a valve film 61, other types of valves, or as shown in FIG. Between the inner side membranes 12, the valve membranes 81, 82 are formed into a flat and slightly cylindrical shape, and in its interior, the valves of valves with the same structure as shown in Figure 8 are provided with exhaust bags of valves with various structures such as valves. , You can also install a shut-off valve 4.

The present invention is constituted and used as described above, and exerts the following useful effects.

The venting bag provided by the first aspect of the present invention does not impair the compactness of the venting bag regardless of whether it is used before or after, and the bonding between the venting channel and the bag body is difficult to detach, and the venting performance of the bag can be maintained.

The second aspect of the present invention has the following effect in addition to the above effects: after inserting the rod-shaped body such as the suction nozzle of the electric vacuum cleaner into the air passage from the opening, and then pulling it out, the air passage and the air passage can be prevented. Rods go out of the bag together.

In addition to the above-mentioned effects, the third aspect of the present invention also exerts the following effects: due to the existence of the air valve, the air flow from the outside of the bag body to the inside can be cut off.

The fourth aspect of the present invention exerts the effect that the inside of the bag can be exhausted and the inside of the bag can be filled with gas, and the ventilation state and the cut-off state can be easily switched.

The fifth aspect of the present invention exerts the following effects. It provides a vent bag that does not lose the compactness of the vent bag and maintains the vent property regardless of whether it is used before or after use; The ventilation state and cut-off state can be switched easily.

Claims (5)

1. A vent bag, comprising: a bag body (1) with a storage access portion (2) that can be switched, and formed by soft non-breathable films (11), (12), and The exhaust passage (4) provided on the bag body (1) is used to store bedding, clothes and food; it is characterized in that, The exhaust passage (4) includes: an opening (11a) provided on the above-mentioned film (11), and a flexible cylindrical air passage installed inside the bag body (1) in communication with the opening (11a). (41); The air passage (41) can cut off the air flow from the outside of the bag body (1) to the inside, and can be inserted into the air passage (41) by inserting a rod-shaped body (5) such as a nozzle of an electric vacuum cleaner into the air passage (41) from the opening (11a). ) to discharge the air from the inside of the bag body (1) to the outside. 2. The vent bag as claimed in claim 1, characterized in that, in the air passage (41), at least the part (43j) connected to the opening (11a) and the middle position (C) from the air passage (41) ) is fixed on the inner surface of the bag body (1) at a predetermined position (43k) approaching to the bag inner side. 3. The vent bag as claimed in claim 2, characterized in that, the air passage (41) is a shut-off valve provided with an air valve (42) inside, which cuts off the flow from the bag body (1) by the air valve (42). ) air flow from outside to inside. 4. The vent bag as claimed in claim 1, characterized in that, the air passage (41) is formed by: along at least one outer envelope in the opposite outer envelope (43a), (43b), located on an axis The openings (43c), (43q) at both ends of the direction; and the closures (43e), (43f) that intersect with the aforementioned axial direction and are located at the two ends of the other axial direction along at least one outer envelope, A slightly cylindrical channel with a flat cross-section; In the middle of the air passage (41), on the surface (43h) of the air passage side of an outer envelope (43b), along the outer envelope (43b) from one closed portion (43e) to the other The closing part (43f), the air valve (42) is installed, thereby forming the first stop valve and the second stop valve; A part of the air valve (42) of the first stop valve is in close contact with the surface (43i) of the air passage side of the outer envelope (43a), thereby cutting off the air flow flowing from one end to the other end on the air passage (41), And the 2nd cut-off valve similarly cuts off the air flow flowing from the other end to one end on the air passage (41); The rod-shaped body (5) is penetrated in such a way as to connect the openings (43c) and (43q) at both ends of the air passage (41), and a part of the exhaust valve (42) and the air passage side of the outer envelope (43a) are released. The close contact of the surface (43i) makes the air passage (41) into a ventilated state; By pulling out the rod-shaped body (5), the air passage (41) is restored to the cut-off state. 5. An air vent bag, comprising: a bag body (1) having a switchable storage access portion (2) and formed by soft non-breathable films (11), (12), and The exhaust passage (4) provided on the bag body (1) is used for storing bedding, clothes and food; The exhaust passage (4) includes: an opening (43q) opened outside the bag (1) and a soft cylindrical air passage (41) leading to the opening (43q); The air passage (41) is composed of openings (43c), (43q) located at both ends of an axial direction along at least one of the opposite outer envelopes (43a), (43b), and the openings (43c) and (43q) aligned with the above-mentioned axial direction. Intersecting, and along at least one outer envelope, the closed section (43e) and (43f) located at the two ends of the other axial direction forms a flat cross-section and slightly cylindrical passageway; In the middle of the air passage (41), on the surface (43h) of the air passage side of an outer envelope (43b), along the outer envelope (43b) from one closed portion (43e) to the other The closing part (43f) is equipped with an air valve (42), thereby forming a first shut-off valve and a second shut-off valve; A part of the valve (42) of the first cut-off valve is in close contact with the surface (43i) of the air passage side of the outer envelope (43a), thereby cutting off the air flow flowing from one end to the other end on the air passage (41); And, the 2nd cut-off valve similarly cuts off the air flow flowing from the other end to one end on the air passage (41); The rod-shaped body (5) is penetrated in such a way as to connect the openings (43c) and (43q) at both ends of the air passage (41), and a part of the air valve (42) is released from the air passage side surface of the outer envelope (43a). (43i) tightly connected, thereby making the air path (41) into a ventilated state; By pulling out the rod-shaped body (5), the air passage (41) is restored to the cut-off state.

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