JP2003072855A - Deaeration bag having suction nozzle, suction nozzle, and deaeration bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deaeration bag which can maintain airtightness as much as possible and be easily handled, a suction nozzle, and the combination thereof. SOLUTION: The air in the deaeration bag is sucked by a suction nozzle connected to a suction pipe or a suction hose of a vacuum cleaner. A small deaeration bag 10A is provided in the deaeration bag in order to insert the nozzle therein. The small bag 10A comprises two resin films 11 and 12, and openable/closable by a fastener 15 formed of uneven parts. The suction nozzle comprises a substantially cylindrical body having a connection part which can be connected to the vacuum cleaner on a rear part thereof, a non-return valve element, and a suction port on a front end part. The rear part for connection is bent upwardly, the front end part is spatula-shaped, and a suction port opened downwardly is formed. The outer circumferential dimension of the front end part having the suction inlet is substantially same as the inner circumferential dimension of an insertion part of the small deaeration bag 10A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deaeration bag mainly for storing bedding such as futon and bulky clothes, and a vacuum cleaner for extracting and compressing internal air from the deaeration bag. TECHNICAL FIELD The present invention relates to a suction nozzle used by being connected, and a combination thereof.

[0002]

2. Description of the Related Art Conventionally, various deaeration bags provided with a check valve made of resin have been provided for accommodating futons, bulky clothes and the like. Along with that, a suction nozzle as an attachment for sucking air from the deaeration bag by inserting it into the check valve while connected to the suction pipe or suction hose of the vacuum cleaner and operating the cleaner is attached. It is provided.

By the way, in the conventionally used deaeration bag, the valve portion protrudes from the bag body and becomes an obstacle, and the check valve made of resin has another rigidity when the deaeration bags are stacked because of its rigidity. It had the problem of damaging the bag.

Even in the combination of the deaeration bag and the suction nozzle, the moment the suction is terminated and the cleaner is stopped,
There was a problem that air flows backward from the vacuum cleaner's pipe and hose to the deaeration bag. Therefore, when the suction nozzle is pulled out from the check valve of the deaeration bag while the vacuum cleaner is operating, the opening of the tip of the suction nozzle sticks to the check valve and the deaeration bag, which is troublesome. Moreover, the suction nozzle sometimes came off the vacuum cleaner when it was pulled out. Also,
Since there is a gap between the tip of the suction nozzle and the check valve when the air is pulled out, there is also a problem that air flows back into the deaeration bag through this gap.

Therefore, an object of the present invention is to provide a deaeration bag provided with a suction nozzle capable of reliably blocking the inflow of air. Another object of the present invention is to provide a deaeration bag capable of reliably blocking the inflow of air. Still another object of the present invention is to provide a deaeration bag that can easily and reliably close the deaeration pouch. Still another object of the present invention is to provide a degassing bag which can easily form a communicating portion of the degassing pouch. Still another object of the present invention is to provide a suction nozzle that does not easily come off from a suction device such as a vacuum cleaner. Still another object of the present invention is to provide a suction nozzle capable of favorably preventing backflow of air. Still another object of the present invention is to provide a suction nozzle capable of suppressing backflow of air into the deaeration bag as much as possible during withdrawal after completion of suction. Still another object of the present invention is to provide a suction nozzle that is easy to handle.

[0006]

In order to achieve the above object, a deaeration bag equipped with a suction nozzle according to the first invention,
Inside the opening formed in a part of the resin film forming the bag body, a degassing pouch made of a resin film that communicates the opening and the inside of the bag body is welded to the degassing pouch. Is a degassing bag with a fastener consisting of a convex portion and a concave portion that can be opened and closed, a rear part that can be connected to a vacuum suction device, and a front end part that forms a suction port can be inserted into the degassing pouch. And a suction nozzle provided with a backflow prevention unit that allows air to flow from the suction port to the rear part in the substantially cylindrical body but that prevents air from flowing from the rear part to the suction port. Characterize.

The degassing bag having the suction nozzle having the above-mentioned structure prevents backflow of air by the backflow preventing means provided in the suction nozzle, and is a degassing pouch into which the suction nozzle is inserted. Since a fastener having a convex portion and a concave portion is attached, the inflow of air can be surely blocked by closing the fastener after removing the nozzle.

If the degassing pouch is printed with a display indicating the position and direction of insertion of the suction nozzle, the usability for the user is improved.

The deaeration bag according to the second aspect of the invention is a resin film for communicating the opening with the inside of the bag body inside the opening formed in a part of the resin film forming the bag body. The degassing pouch made of is welded, and the degassing pouch is equipped with a fastener having openable and closable protrusions and recesses.

In the deaeration bag having the above structure, the inflow of air after suction can be reliably prevented by the fastener. The fastener preferably has a length of 100 mm or less. When it is 100 mm or less, the fastener does not meander, and even if the convex portion and the concave portion are fitted from the central portion, they can be fitted securely from one end to the other.

The opening of the deaeration bag may be constituted by a small door formed by a slit. If the slits are formed, chips will not be generated during bag making, and the work will be easy. If a small door is also formed by slits in the degassing pouch and the small door and the small door forming the opening are welded, these small doors can be opened and closed integrally.

Further, the communicating portion of the degassing pouch can be formed by subjecting a resin film to a welding inhibition treatment. The small bag for degassing is welded to the resin film of the degassing bag. At this time, if the welding inhibiting treatment is performed in order to leave the communicating portion unwelded, the communicating portion can be easily formed.

The suction nozzle according to the third invention is
A suction nozzle for inserting into a vacuum suction device and inserting it into a degassing pouch provided in the degassing bag and sucking air from the degassing bag, the rear part of which is the vacuum suction device. A front end portion that can be connected to the device and has a suction port is formed of a substantially cylindrical body that can be inserted into the degassing pouch, and the rear portion of the substantially cylindrical body allows air to flow from the suction port to the rear portion. It is characterized in that it is provided with a backflow prevention means for preventing the flow of air from the suction port to the suction port.

Since the suction nozzle having the above structure is provided with the air backflow prevention means, the backflow of intake air can be effectively prevented. In this suction nozzle, the rear portion is preferably bent upward by 20 ° or more. For example, when connecting to a suction pipe or a suction hose of a vacuum cleaner, when pulling out from a degassing pouch after sucking air, even if a force is applied to the vacuum cleaner pipe or hose in the pulling direction, this pullout There is a deviation between the direction and the direction in which the pipe or hose is about to come off, which makes it difficult for the nozzle to come off the pipe or hose.

In the suction nozzle, a flange may be formed on the entire outer peripheral portion of the rear portion. When degassing by inserting the rear part into the end of the vacuum cleaner hose or pipe,
The tip of the hose or pipe presses against the brim portion and adheres tightly to prevent the inhalation of excess air.

Further, in the suction nozzle, it is preferable that the outer peripheral dimension of the front end portion where the suction port is formed is substantially equal to the narrowest inner peripheral dimension of the degassing pouch. When the outer peripheral dimension of the front end portion where the suction port is formed is almost equal to the narrowest inner peripheral dimension of the degassing pouch, when the nozzle is pulled out from the degassing pouch after suction is completed,
There is almost no gap between the front end of the nozzle and the inner surface of the pouch, and the backflow of air from this portion can be prevented as much as possible.

Further, in the suction nozzle, it is preferable that the front end portion having the suction port is shaped like a spatula for shaping the degassing pouch flat. When the spatula-shaped portion is pulled out while being sandwiched between the exterior resin film of the deaeration bag and the contents, the pouch is shaped into a flat shape, and it becomes difficult for air to escape from between the resin films forming the pouch.

The front end of the suction nozzle is preferably round. For example, it is preferable that a small spherical portion is provided or that the front end portion is rounded on the vertical surface. If the front end is rounded, the protrusion of the fastener can be smoothly overcome when inserting the nozzle into the pouch.

The rear portion of the suction nozzle may be integrally connected to a vacuum suction device. In this case, the vacuum suction device is exclusively used for deaeration.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a deaeration bag having a suction nozzle, a suction nozzle and a deaeration bag according to the present invention will be described below with reference to the accompanying drawings.

(First Embodiment of Deaeration Bag and First of Pouch)
First, a first embodiment of the deaeration bag will be described. As shown in FIG. 1, this deaeration bag 1A is a futon made by sealing the exterior resin films 2 and 3 on the front and back sides on three sides (upper and lower side portions shown by hatching in FIG. 1A, left side portion). It is configured as a large bag for accommodating clothes and the like. The right side portion of FIG. 1 (A) is an inlet / outlet port 4, to which a well-known fastener 5 having a combination of a concave portion and a convex portion is welded.

A slider 8 for facilitating closing of the fastener 5 may be provided at the inlet / outlet port 4 of the deaeration bag 1A.

The deaeration bag 1A is provided with a deaeration pouch 10A for sucking the internal air. The degassing pouch 10A is attached to the inner surface side of the opening 6 formed in the exterior resin film 2 on the front side of the degassing bag 1A.

That is, the degassing pouch 10A is composed of two resin films 11 and 12, as shown in FIG. Note that the exterior resin film 2 of the degassing bag 1A is not shown in FIG. 2 (A), and hatching of the cross section is omitted in FIG. 2 (B) in order to avoid complication of illustration. .
In addition, the hatched portion in FIG. 2A is a welded portion.

A resin film 11, which constitutes the pouch 10A,
Both sides of 12 are welded to each other (welded portions a and b indicated by a diagonal line descending to the left), and are welded so that air does not leak to the inside of the exterior resin film 2 (indicated by a diagonal line descending to the right). Welded parts c, d, e, f). In the welded portion e, a welding inhibition treatment is performed in order to form a communicating portion 13 between the outside and the inside. The welding inhibition treatment can be easily performed by providing the welding inhibition layer 14 on the inner surface side of the resin film 11 (may be on the inner surface side of the resin film 12). Although various materials can be used for the welding inhibition layer 14, for example, it is preferable to form the heat-resistant ink by gravure printing.

As another example of the welding inhibition treatment, a pouch 10
The resin film 11 of A may be a laminated film. If the outer side is a film having a low heat welding temperature and the inner side is a film having a high heat welding temperature and the welded portion e is given a temperature at which the outer film is welded but the inner film is not welded to the resin film 12, the resin films 11, 12 The space is not welded and the communicating portion 13 can be obtained.

A fastener 15 composed of a combination of a concave portion and a convex portion is welded to the tip portion of the resin film 11 and the intermediate portion of the resin film 12. The fastener 15 is provided to ensure the airtightness of the deaeration bag 1A, and as shown in FIG.
It is a well-known one in which the concave portion 17 and the convex portion 18 are integrally formed by extrusion molding. In addition, the deaeration bag 1A
The fastener 5 provided in the same has the same structure.

The fastener 15 is provided with a concave portion 17 and a convex portion 18 having various configurations and shapes in order to improve the ease of opening the opening 6 and the sealing performance.
Some have a double structure.

Further, the surface of the resin film 12 is printed with arrows indicating the positions and directions of inserting the suction nozzles 20A, 20B, 20C described below.

(Second embodiment of deaeration bag and second embodiment of pouch
Next, a second embodiment of the deaeration bag will be described. As shown in FIG. 4, this deaeration bag 1B basically has the same configuration as the deaeration bag 1A, and the same members,
The parts are denoted by the same reference numerals as those in FIG. In this deaeration bag 1B, a small door 7 is formed by forming a slit 7a in the exterior resin film 2 instead of the opening 6.
And a degassing pouch 10B is provided on the back side of the small door 7.

The structure of the degassing pouch 10B, which is the second example, will now be described with reference to FIG. This pouch 10B has two resin films 11 and 12 of the same size which are welded to each other at a welding portion a,
b and c are welded to each other, and welded portions d to g are welded to the inside of the exterior resin film 2 of the degassing bag 1B so that air does not leak.

FIGS. 5A and 5B are the same as those shown in FIG.
It is drawn by the same method as (B), and the slit 1 along the inside of the slit 7a of the deaeration bag 1B is formed on the resin film 11.
The small door 17 is formed by forming 7a, and the small door 17 is formed.
And the small door 7 of the deaeration bag 1B are welded to each other at the welded portion h so that they can be integrally opened and closed.

In addition, in the welded portions e and h, in order to form the communicating portion 13 between the outside and the inside, the welding inhibition treatment may be performed on the inner surface side of the resin film 11 (on the inner surface side of the resin film 12). ) A welding inhibition layer 14 is provided. Further, the fasteners 15 shown in FIG. 3 are provided on the resin films 11 and 12 so that the communicating portion 13 is kept airtight.

(First Embodiment of Suction Nozzle, FIGS. 6-8)
Reference) Here, a first embodiment of the suction nozzle according to the present invention will be described. As shown in FIG. 6, this suction nozzle 20A has a connection part 21 having a circular cross section that can be inserted into the tip of a suction pipe or a suction hose of a vacuum cleaner at the rear part, and a suction port 22 provided at the tip part. The main portion has a flat cross-sectional shape, and the connecting portion 21 is bent upward at an angle θ of about 70 °.

The front end portion including the suction port 22 is shaped like a spatula and has an opening 25 formed therein. The opening 25 is for hanging on a hook or the like when not in use. Further, a small ball portion 26 is formed at the front end portion. The small ball portion 26 is provided with the nozzle 20A as described below.
This is for smoothly overcoming the protrusion of the fastener 15 when inserting the into the pouches 10A and 10B.

The suction nozzle 20A is appropriately molded from a plastic material and is injection-molded into two separate right and left segments shown in FIG. 7B, and the concavo-convex portions provided on the joint surface are mutually separated. It is integrated by fitting and bonding.

A check valve body 27 made of a resin film shown in FIG. 8 is mounted in the connecting portion 21.
In the check valve body 27, the hatched portion shown in FIG. 8 is shown in FIG.
Is attached to the shaded portion of the pedestal portion 21a, and the non-adhesive portion (that is, the valve portion 27a) is in contact with the pedestal portion 21a in a free state. The valve portion 27a is rotatable in the arrow x direction in FIG. 8 (B), and allows the air to flow in the direction of arrow C shown in FIG. 7 (A), but prevents the air from flowing in the opposite direction. Functions as a stop valve. Further, in the check valve body 27, cutouts 27b are formed on both sides of the rotation fulcrum in order to prevent peeling of the adhesive due to the opening / closing operation.

On the other hand, the outer peripheral dimension of the maximum width dimension portion (the portion indicated by the alternate long and short dash line Y in FIG. 6B) at the front end portion of the suction nozzle 20A is the degassing pouches 10A, 10B.
Is almost the same as the minimum inner peripheral dimension of the communicating portion 13 (corresponding to the dimension D of the non-welded portion (see FIGS. 2 and 5)). Also,
In FIG. 6B, the outer peripheral dimension of the tubular body portion indicated by the alternate long and short dash line Y ′ is substantially the same as the minimum inner peripheral dimension of the communicating portion 13.

(How to Use, See FIG. 9) Here, a method for degassing the degassing bag 1B using the suction nozzle 20A having the above-described structure will be described with reference to FIG. In addition,
The method of using the suction nozzles 20B and 20C described below is basically the same. Further, it goes without saying that the usage method described here is merely an example.

First, the connecting portion 21 of the suction nozzle 20A is connected to the suction pipe or suction hose of the cleaner.
When the small door 7 of the deaeration bag 1B is picked up, the small bag 1
The small door 17 of 0B is picked up, and a downward force is applied to the resin film 12 and an upward force is applied to the resin film 11 to open the fastener 15. The front end of the suction nozzle 20A is inserted into the opening thus formed. When inserting the front end of the nozzle 20A, the rounded front end can smoothly get over the fastener 15.

When the suction nozzle 20A is further inserted to pass the pouch 10B and the vacuum cleaner is operated in this state,
The air inside the deaeration bag 1B is sucked. When the vacuum cleaner is stopped after the suction is completed, the check valve body 27 prevents the backflow of air from the vacuum cleaner inside the suction nozzle 20A.

After the suction is completed, the nozzle 20A is attached to the pouch 1
At the time of pulling out from 0B, the resin films 11 and 12 flattened by the spatula-shaped portion at the front end are not sandwiched between the compressed contents and the exterior resin film 2 of the deaeration bag 1B so that no gap is generated. Further, the outer peripheral surface of the front end portion is in close contact with the inner peripheral surface of the pouch 10B, and there is almost no gap. Therefore,
When the nozzle 20A is pulled out, backflow of air at the outer peripheral surface portion of the nozzle 20A is almost certainly prevented.

When the nozzle 20A is pulled out from the pouch 10B, the fastener 15 can be fitted by simply pressing. In order to facilitate this fitting, the length of the fastener 15 is preferably 100 mm or less. If the length of the fastener 15 is large, the zipper 15 will meander and the uneven portion 1
7 and 18 do not fit properly, and have a troublesomeness of pressing while sliding from one end to the other end. However, when the fastener 15 is short, the concave-convex portions 17 and 18 maintain a linear shape and are fitted at both ends, so that they can be fitted securely by simply pressing from above.

The suction nozzle 20A is a pouch 10
When it is pulled out from B, the pulling force acts in the direction shown by arrow Z in FIG. However, the direction in which the connecting portion 21 of the nozzle 20A tries to come out from the pipe or hose of the cleaner is the arrow Z'direction, and there is no problem that the connecting portion 21 is detached from the cleaner by the pulling force in the arrow Z direction. In order to exert such an effect, the angle θ of the connecting portion 21 of the nozzle 20A may be set to 20 ° or more.

Further, since the check valve body 27 is installed at the rear side, that is, above the bent portion of the nozzle 20A, the check valve body 27 maintains the posture of closing the inside of the nozzle by its own weight, and the backflow of air is caused. Good prevention.

Further, since the suction port 22 is opened in the direction for sucking air from the lower side, it does not adsorb to the exterior resin film 2 of the deaeration bag 1B, which causes a problem that the suction action is reduced or stopped. Nothing.

Second Embodiment of Suction Nozzle, See FIG. 10 Next, a second embodiment of the suction nozzle according to the present invention will be described. As shown in FIG. 10, the suction nozzle 20B has a substantially box-like shape and has a plurality of suction ports 22 at the front end portion, the bottom portion, and both side portions. It is similar to the nozzle 20A.

The characteristic feature of this suction nozzle 20B is that
That is, the front end portion is rounded, and the collar portion 29 is formed at the root portion of the rear connection portion 21 (may be the entire circumference or may be divided in the circumferential direction).

The fact that the front end is round means that
It means that it is rounded on a vertical plane as shown by arrow E in (A), or it is rounded on a horizontal plane as shown by arrow F. The effect thereof is to smoothly get over the projection of the fastener 15, as with the small ball portion 26. In particular, it is important that it is rounded on a vertical surface.

Further, when the connecting portion 21 is inserted into the tip portion of the hose or pipe having an inner diameter larger than the outer diameter of the connecting portion 21, the tip of the hose or pipe is pressed against the flange portion 29 to be in close contact with the end portion of the hose or pipe. The intake of fresh air is prevented.

(Third Embodiment of Suction Nozzle, FIGS. 11 to 11)
17) Next, a third embodiment of the suction nozzle according to the present invention will be described. The suction nozzle 20C basically has a similar configuration and operation to the suction nozzle 20A, and the common portions are denoted by the same reference numerals and duplicate description will be omitted.

That is, the suction nozzle 20C has, as shown in FIG. 11, a connection portion 21 having a circular cross section which can be connected to the tip portion of the suction pipe of the cleaner or the suction hose at the rear portion, and the main suction port at the tip. 22 and a secondary suction port 23, 24 are provided, and the main part has a flat cross-sectional shape (see FIG. 13).
Is doing. The tip portion including the main suction port 22 is shaped like a spatula.

The suction nozzle 20C is appropriately molded from a plastic material, and is injection-molded separately into an upper member and a lower member shown in FIGS. Has been converted.

A check valve body 28 is mounted in the connecting portion 21 as shown in FIG. As shown in FIG. 17, the check valve body 28 has a semicircular mounting portion 2
8a and a valve portion 28b having a substantially elliptical shape, which is an integrally molded product, and the boundary between the attachment portion 28a and the valve portion 28b is a thin piece portion 28c that is bendable.

The mounting portion 28a is fitted in the groove portion 21b formed in the connecting portion 21, and the valve portion 28b is in contact with the inner peripheral surface of the connecting portion 21 in a free state. In this state, the valve portion 28b functions as a check valve that allows air to flow in the direction of arrow C but blocks air from flowing in the opposite direction.

The outer peripheral dimension of the maximum width dimension portion (the portion indicated by the alternate long and short dash line Y in FIG. 11A) at the tip portion of the suction nozzle 20C is the degassing pouches 10A, 10 described above.
Minimum inner peripheral dimension of communicating portion 13 of B (dimension D of non-welded portion)
(See FIGS. 2 and 5)). Further, in FIG. 11A, the outer peripheral dimension of the tubular body portion indicated by the alternate long and short dash line Y ′ is substantially the same as the minimum inner peripheral dimension of the communicating portion 13.

The deaeration operation from the deaeration bags 1A and 1B by the suction nozzle 20C having the above structure is basically the same as the use method described above for the suction nozzle 20A, and has the same operation and effect.

(Other Embodiments) The deaeration bag, the suction nozzle and the combination thereof according to the present invention are not limited to the above-mentioned embodiment, but can be variously modified within the scope of the gist thereof. .

In particular, the overall proportion of the suction nozzle, the position and shape of the suction port, the shape of the check valve, and the like are arbitrary. The check valve body may be provided at two locations. Further, the rear portion of the suction nozzle may be integrally connected to the vacuum suction device. Further, the attachment position of the degassing pouch is arbitrary, and it may be provided not only at one position but also at a plurality of positions with respect to the degassing bag.

Further, as the backflow preventing means, an air blocking plate is provided in the nozzle instead of the check valve body shown in the above-mentioned embodiment, and the air blocking plate is interlocked with a knob or a button operable by the user. Alternatively, it may be configured to be movable between the blocking position and the open position.

Further, the deaeration bag may be constructed by various sealing methods, and the fasteners of the deaeration pouch may have various shapes.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a degassing bag according to the present invention,
(A) is a plan view and (B) is a sectional view.

FIG. 2 shows a first example of a degassing pouch attached to the degassing bag of the first embodiment, (A) is a plan view, and (B) is a plan view.
Is a sectional view.

FIG. 3 is a cross-sectional view showing a fastener provided on the degassing pouch.

FIG. 4 shows a second embodiment of a degassing bag according to the present invention,
(A) is a plan view and (B) is a sectional view.

FIG. 5 shows a second example of a degassing pouch attached to the degassing bag of the second embodiment, (A) is a plan view, and (B) is a plan view.
Is a sectional view.

FIG. 6 shows a first embodiment of a suction nozzle according to the present invention, (A) is a front view, (B) is a bottom view, and (C) is a side view.

FIG. 7 shows a divided part of the suction nozzle shown in FIG.
(A) is a front view, (B) is a bottom view, and (C) is an AA cross-sectional view.

8A and 8B show a check valve body provided in the suction nozzle shown in FIG. 6, FIG. 8A being a plan view and FIG. 8B being a side view.

9 is an explanatory diagram showing a method of using the suction nozzle shown in FIG.

10A and 10B show a second embodiment of a suction nozzle according to the present invention, FIG. 10A is a perspective view seen from below, and FIG. 10B is a perspective view seen from above.

FIG. 11 shows a third embodiment of the suction nozzle according to the present invention, (A) is a plan view, (B) is a front view, and (C) is a bottom view.

12 is a side view showing the suction nozzle shown in FIG. 11. FIG.

FIG. 13 is a sectional view taken along line GG of FIG.

14A and 14B show divided parts of the suction nozzle shown in FIG. 11, and FIGS. 14A and 14B are front views.

15 shows the split part shown in FIG. 14, (A),
(B) is a side view, respectively.

16 is a cross-sectional view showing a connecting portion of the suction nozzle shown in FIG.

17 shows a check valve body provided in the suction nozzle shown in FIG. 11, (A) is a plan view, and (B) is a side view.

[Explanation of symbols]

1A, 1B ... Deaeration bag 2 ... Exterior resin film 6 ... Opening 7a ... slit 10A, 10B ... Degassing sachet 11, 12 ... Resin film 13 ... Communication part 14 ... Welding inhibition layer 15 ... Fastener 20A, 20B, 20C ... Suction nozzle 21 ... Connection part 22, 23, 24 ... Suction port 26 ... Small ball 27, 28 ... Check valve body 29 ... Tsubabe

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3B061 AA18 AA44                 3E064 AE14 BA22 BC08 EA08 FA01                       FA07 HD01 HE03 HN12 HS10                       HT01                 3E067 AA12 AB71 BA12A BB14A                       EA06 EA18 EA40 EB17 EB22                       EB40 EE02 EE19 EE27 EE56                       FA01 FB11 FC01 GA15

Claims (19)

[Claims] 1. A degassing pouch made of a resin film, which communicates the opening with the inside of the bag body, is welded to the inside of the opening formed in a part of the resin film constituting the bag body, The degassing pouch has a degassing bag with a zipper that can be opened and closed, and a rear part that can be connected to a vacuum suction device, and the front end that forms the suction port can be inserted into the degassing pouch. It consists of a possible cylindrical body,
A suction nozzle provided with a backflow prevention means for allowing air to flow from the suction port to the rear part in the substantially cylindrical body, but for preventing air from flowing from the rear part to the suction port. Deaeration bag equipped with a nozzle. 2. The degassing bag having a suction nozzle according to claim 1, wherein the degassing pouch is printed with a display indicating a position and a direction in which the suction nozzle is inserted. 3. The suction nozzle according to claim 1, wherein an outer peripheral dimension of a front end portion of the suction nozzle forming the suction port is substantially equal to an inner peripheral dimension of the narrowest portion of the degassing pouch. Deaeration bag. 4. The suction according to claim 1 or 3, wherein a front end portion of the suction nozzle in which the suction port is formed has a spatula shape for flatly shaping the degassing pouch. Deaeration bag equipped with a nozzle. 5. The deaeration bag equipped with the suction nozzle according to claim 1, wherein the front end portion of the suction nozzle is rounded. 6. The suction nozzle according to claim 1, wherein the vacuum suction device to which the rear portion of the suction nozzle is connected is a vacuum cleaner. Degassing bag provided. 7. The rear portion of the suction nozzle is integrally connected to a vacuum suction device.
A degassing bag provided with the suction nozzle according to claim 3, claim 4, or claim 5. 8. A degassing pouch made of a resin film, which communicates the opening and the inside of the bag body, is welded to the inside of the opening formed in a part of the resin film forming the bag body, The degassing pouch has a zipper made of a convex portion and a concave portion that can be opened and closed. 9. The opening is constituted by a small door formed by a slit.
Degassing bag described. 10. The degassing pouch has a small door formed of a slit in a resin film, and the small door and the small door constituting the opening are welded together. The deaeration bag described in 9. 11. The communication part of the degassing pouch is formed by subjecting a resin film to welding inhibition treatment, claim 8, claim 1 or claim 1.
Degassing bag described in 0. 12. A suction nozzle for inserting a vacuum suction device into a degassing pouch provided in the degassing bag in a state of being connected and sucking air from the degassing bag. A rear part is connectable to the vacuum suction device, and a front end part having a suction port is formed of a substantially cylindrical body that can be inserted into the degassing pouch, and the substantially cylindrical body has a circulation of air from the suction port to the rear part. The suction nozzle is provided with a backflow preventing means that allows air to flow from the rear portion to the suction port. 13. The suction nozzle according to claim 12, wherein the rear portion is bent upward by 20 ° or more. 14. The flange portion is formed on the entire circumference of the outer peripheral portion of the rear portion.
The suction nozzle described. 15. The suction according to claim 12, 13, or 14, wherein the outer peripheral dimension of the front end portion forming the suction port is substantially equal to the narrowest inner circumferential dimension of the degassing pouch. Nozzle. 16. The method according to claim 12, wherein the front end portion forming the suction port is spatula-shaped.
3, the suction nozzle according to claim 14 or 15. 17. The suction nozzle according to claim 12, claim 13, claim 14, claim 15 or claim 16, wherein the front end is rounded. 18. The vacuum suction device to which the rear part is connected is a vacuum cleaner, according to claim 12, claim 13, claim 14, claim 15, claim 16 or claim 17. Suction nozzle. 19. The method according to claim 12, wherein the rear portion is integrally connected to a vacuum suction device.
The suction nozzle according to claim 3, claim 15, claim 16, or claim 17.