KR20030019087A - An exhausting bag provided with a nozzle for suction, a nozzle for suction, and an exhausting bag - Google Patents

Abstract

PURPOSE: To provide a deaeration bag which can maintain airtightness as much as possible and be easily handled, a suction nozzle, and the combination thereof. CONSTITUTION: 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

An exhausting bag provided with a nozzle for suction, a nozzle for suction, and an exhausting bag}

The present invention mainly provides a degassing table for storing bedding, soft clothes, and the like, a suction nozzle used in connection with a vacuum cleaner, etc. to extract and compress the air inside the degassing table, and these The present invention relates to a combination of a deaeration zone and a suction nozzle.

Background Art Conventionally, various degassing units having check valves made of resin for storing duvets, soft clothes, and the like have been proposed. Incidentally, a nozzle is also provided as an accessory for extracting air from the deaeration table by inserting a check valve and operating the vacuum cleaner while being connected to the suction pipe or suction hose of the vacuum cleaner.

However, in the degassing zone used in the related art, it is inconvenient because the valve portion protrudes from the bag main body, and it is inconvenient to damage the other bag when the check valve made of resin has rigidity to overlap the degassing stage. It becomes a problem.

In addition, even when the degassing table and the suction nozzle are combined, there is a problem that air flows back from the pipe or hose of the vacuum cleaner to the degassing at the moment when the suction is finished and the vacuum cleaner is stopped. Therefore, if the suction nozzle is pulled out from the check valve while the vacuum cleaner is operated, the opening of the end of the suction nozzle will stick to the check valve or the deaeration table. The nozzle may also come out of the vacuum cleaner when pulled out. In addition, a gap is formed between the front end of the suction nozzle and the check valve when it is pulled out, so that air flows back to the degassing through this gap.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a degassing stand provided with a suction nozzle capable of reliably blocking the inflow of air.

Another object of the present invention is to provide a degassing stand which can reliably block the inflow of air.

Still another object of the present invention is to provide a degassing stand which can easily and reliably close a small bag for degassing.

Another object of the present invention is to provide a degassing stand which can easily form a communicating portion of a small bag for degassing stand.

Still another object of the present invention is to provide an intake nozzle which does not easily come out of a suction device such as a cleaner.

Still another object of the present invention is to provide a suction nozzle capable of satisfactorily preventing backflow of air.

Still another object of the present invention is to provide a suction nozzle that can prevent the air from flowing backward to the degassing stage when pulling out after the suction is completed.

Another object of the present invention is to provide a suction nozzle that is easy to handle.

1A and 1B are a plan view and a cross-sectional view showing a first embodiment of a degassing stand according to the present invention, respectively;

2A and 2B are a plan view and a cross-sectional view showing one example of a small bag for degassing attached to the degassing table of the first embodiment, respectively;

3 is a cross-sectional view showing a fastener installed in a small bag for degassing,

4A and 4B are a plan view and a sectional view showing a second embodiment of the degassing stand according to the present invention, respectively;

5A and 5B are a plan view and a cross-sectional view showing another example of a small bag for degassing attached to the degassing table of the second embodiment, respectively;

6A, 6B, and 6C are a front view, a bottom view, and a side view respectively showing a first embodiment of a suction nozzle according to the present invention;

7A, 7B, and 7C are front views, bottom views, and sectional views taken on line A-A, respectively, showing the divided parts of the suction nozzle shown in Fig. 6;

8A and 8B are a plan view and a side view of the check valve installed in the suction nozzle shown in FIG. 6, respectively;

9 is an explanatory diagram showing a method of using the suction nozzle shown in FIG. 6;

10A and 10B are respectively a perspective view from below and a perspective view from above of a second embodiment of a suction nozzle according to the present invention;

11A, 11B, and 11C are a plan view, a front view and a bottom view respectively showing a third embodiment of a suction nozzle according to the present invention;

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

FIG. 13 is a sectional view taken along the line G-G of FIG. 11C;

14A and 14B are front views each showing a split part of the suction nozzle shown in FIG. 11;

15A and 15B are side views showing the divided parts shown in FIG. 14, respectively;

16 is a cross-sectional view showing a connecting portion of the suction nozzle shown in FIG. 11;

17A and 17B are a plan view and a side view, respectively, of a check valve installed in a suction nozzle.

(Explanation of the sign)

1A, 1B---Degassing strip 2----Exterior resin film

6-----Opening 7a----Slit

10A, 10B--Small bag for degassing 11, 12---Resin film

13-----Communication part 14-----Deposition layer

15-----Fastener 20A, 20B, 20C--Suction Nozzle

21-----Connection 22, 23, 24---Suction port

27, 28---Check valve

The degassing stage provided with the suction nozzle according to the present invention for achieving the above object is a resin film which communicates the opening and the inside of the back body inside the opening formed in a part of the resin film constituting the back body. The degassing bag is welded, the degassing table is attached with a fastener consisting of a recess and a convex part so that the bag can be easily opened and closed, and the rear part can be connected to the vacuum suction device, and the front end formed with the suction port is It consists of a cylindrical body that can be inserted into the small bag for degassing and prevents the flow of air from the suction port to the rear part in the cylindrical body but prevents the flow of air from the rear part to the suction port. It is characterized by consisting of a suction nozzle equipped with.

In the degassing table having the suction nozzle configured as described above, the backflow of the air is prevented by the reverse flow prevention means provided in the suction nozzle, and the fastener made of the uneven portion is attached to the small bag for degassing into which the suction nozzle is inserted. Thus, after the nozzle is pulled out, the fastener can be closed to reliably block the inflow of air.

In this case, if the position and the direction of inserting the suction nozzle in the small bag for degassing are displayed, it becomes much more convenient for the user to use.

In the degassing zone according to the present invention, a small bag for degassing made of a resin film communicating with the opening and the inside of the back main body is welded inside an opening formed in a part of the resin film forming the back main body, It is characterized in that the fastener consisting of the recess and the iron portion is attached to be easily opened and closed.

In the degassing zone configured as described above, the air inflow can be reliably prevented after being sucked by the fastener. In addition, the fastener is preferably 100 mm or less in length. If the fastener is 100 mm or less, the fastener does not bend, so that the fastener can be secured from end to end even if the uneven portion is fitted from the center.

In addition, the opening of the degassing table may be composed of a small passage formed by the slit. If the slit is formed in this way, the remnants do not occur when the bag is made, so it is easy to work. On the other hand, a small bag for degassing is formed with a door portion made of a slit, so that the passage and the passages constituting the opening are welded so that these passages can be opened and closed integrally.

In addition, the communicating portion of the small bag for degassing is formed by welding inhibition treatment to prevent welding on the resin film, so that the small bag for degassing is welded to the resin film of the degassing bed but is in communication. Since the part remains unwelded, it is possible to easily form the communicating part by the welding inhibiting treatment.

In addition, the suction nozzle according to the present invention is inserted into a small bag for deaeration installed in the deaeration stage while being connected to the vacuum suction device and suctioned air from the deaeration stage, wherein the back portion is a vacuum. It is connected to the suction device, and the front end portion formed with the suction port is composed of a cylindrical body inserted into the small bag for degassing, so that air can flow from the suction port to the rear part in the cylindrical body but is sucked from the rear part. The air flow to the sphere is characterized in that it is equipped with a backflow prevention means for preventing.

Since the suction nozzle configured as described above has an air backflow prevention means, it is possible to effectively prevent backflow of the intake air. In this suction nozzle, the rear part is preferably bent upward by 20 ° or more. For example, when connected to a suction pipe or suction hose of a vacuum cleaner, the vacuum cleaner is used to remove air from a small bag for degassing after suction. Even if the force is applied in the direction of pulling the pipe or hose of the pipe, there is a difference between the pulling direction and the direction in which the pipe or hose is pulled out, making it difficult to pull the nozzle from the pipe or the hose.

In the suction nozzle, the flange may be formed around the entire outer circumference of the rear portion. When the flange is formed in this way, the front end of the hose or pipe is pressed against the flange when degassing by inserting the rear portion into the front end of the hose or pipe of the cleaner, thereby preventing extra air from being sucked.

In addition, it is preferable that the suction nozzle has the outer circumference of the front end portion where the suction port is formed to be substantially the same as the dimension of the narrowest inner circumference of the small bag for degassing. If the outer periphery of the front end where the suction port is formed is approximately equal to the narrowest inner dimension of the small bag for degassing, the gap between the front end of the nozzle and the inner surface of the small bag when the nozzle is removed from the small bag for degassing after the suction is finished This hardly occurs, and it is possible to prevent the backflow of air at that portion as much as possible.

In the suction nozzle, it is preferable that the front end portion on which the suction port is formed has a flat spatula shape. If the spatula-shaped portion is pulled out in the state of being caught in the degassing exterior resin film and the contents, the small bag is flattened, and it is difficult for the air to escape between the resin films constituting the small bag.

In addition, it is preferable that the front end of the suction nozzle is rounded, for example, the front end may be formed in a small ball shape, or the front end may be rounded on the vertical plane. When the front end is rounded like this, the protrusion of the fastener can easily ride over when the nozzle is inserted into the small bag.

In addition, it is preferable that the rear portion of the suction nozzle is integrally coupled to the vacuum suction device, in which case the vacuum suction device is dedicated to degassing.

(Actual example)

EMBODIMENT OF THE INVENTION Hereinafter, the Example of the deaeration stage provided with the suction nozzle, the suction nozzle, and the deaeration stage which concerns on this invention is demonstrated with reference to an accompanying drawing.

1 to 3 are diagrams showing a first embodiment of the degassing strip according to the present invention. As shown in FIG. 1, this degassing zone 1A is sealed in two directions of the outer resin films 2 and 3 constituting the front and back surfaces in three directions (upper and lower side portions and left side portions indicated by diagonal lines in FIG. 1A). It is configured to constitute a large bag for accommodating quilts and clothes. Among these, the right side part of FIG. 1A shows that the well-known fastener 5 by which the recessed part and the convex part were combined as the entrance 4 is welded.

In addition, a slider 8 may be provided at the entrance and exit 4 of the degassing table 1A so that the fastener 5 can be easily closed.

The degassing bag 1A is provided with a small bag 10A for degassing to suck air therein, and the bag 10A for degassing the outer resin film 2 on the front side of the degassing table 1A. It is attached to the inner surface side of the opening 6 formed in the.

That is, the small bag 10A for degassing consists of two resin films 11 and 12 as shown in FIG. On the other hand, the outer resin film 2 of the deaeration stage 1A is not shown in FIG. In FIG. 2A, the part with diagonal lines is a welded part.

Both sides of the resin films 11 and 12 constituting the small bag 10A are welded to each other (parts indicated by left and right oblique lines are welded portions a and b), and air leaks into the exterior resin film 2. It is welded so that it may not be welded (the part shown by the diagonal diagonal line is welding part c, d, e, f). Among them, in the welding portion (e), the welding inhibiting treatment is performed to form the communication portion 13 between the outside and the inside, and the welding inhibiting treatment is the welding inhibiting layer 14 on the inner surface side of the resin film 11. It can be easily processed by forming a. At this time, the deposition inhibiting layer may be formed on the inner surface side of the resin film 12. The dissolution inhibiting layer 14 may be formed of various materials, for example, gravure printing of a heat resistant ink.

As another example of the above welding inhibiting treatment, the resin film 11 of the small bag 10A may be formed of a laminate film. That is, the outer film is made of a film having a low thermal welding temperature while the inside is made of a film having a high thermal welding temperature, and the inner film is not welded with the resin film 12 even if the outer film is welded to the weld portion e. When the temperature is given, the communication portion 13 can be made by not welding between the resin films 11 and 12.

In addition, a fastener 15 formed by combining recesses and convex portions is welded to the front end portion of the resin film 11 and the intermediate portion of the resin film 12. The fastener 15 is installed to ensure the airtightness of the deaeration stage 1A. As shown in Fig. 3, the base portions 16 and 16, the recessed portions 17 and the convex portions 18 are extruded, respectively. It is well-known that it was formed integrally. Moreover, the fastener 5 provided in 1A of the deaeration tables is also comprised similarly.

On the other hand, the fastener 15 may have a concave portion 17 and a convex portion 18 having various configurations and shapes so as to improve the ease of opening and sealing of the opening 6, and in particular, may be composed of a double. have.

On the surface of the resin film 12, arrows indicating insertion positions and insertion directions for inserting the suction nozzles 20A, 20B, and 20C to be described later are printed.

4 and 5 show a second embodiment of the degassing stand according to the present invention. The degassing stand 1B is basically the degassing stand 1A according to the previous embodiment as shown in FIG. In the same configuration, the same constituent members and components are denoted by the same reference numerals as those in FIG.

The degassing table 1B is formed with a small door 7 formed by forming a slit 7a in the exterior resin film 2 instead of the opening 6, and a small degassing area on the back side of the small door 7 is formed. Bag 10B is provided.

5 shows the degassing small bag 10B. The small bag 10B is formed by welding two resin films 11 and 12 of the same size to each other at the welding portions a, b, and c. In addition, the welding portion (d ~ g) was welded so that air does not count toward the inside of the outer resin film (2) of the deaeration table (1B).

5A and 5B are shown in the same manner as in FIGS. 2A and 2B. In the resin film 11, the slit 17a is formed along the inside of the slit 7a of the degassing band 1B. ) Is formed so that the small passage and the small passage 17 of the degassing stage 1B are welded at the welding portion h to be opened and closed integrally.

In addition, in the welding portions e and h, the welding inhibiting layer 14 is provided on the inner surface side of the resin film 11 as the welding inhibiting process for forming the communicating portion 13 between the outside and the inside. Here, of course, the deposition inhibiting layer may be provided on the inner surface side of the resin film 12 instead of the inner surface of the resin film 11. In addition, the resin films 11 and 12 are provided with the fastener 15 shown in FIG. 3 so that the airtightness of the communicating part 13 can be maintained.

Next, a first embodiment of the suction nozzle will be described with reference to FIGS. 6 to 8.

As shown in Fig. 6, the suction nozzle 20A has a connecting portion 21 having an elliptical cross section which can be inserted into the front end of the suction pipe or the suction hose of the cleaner at the rear portion and the suction port 22 at the tip end thereof. Is made of a cylindrical body, the main part has a shape having a flat cross section, and the connecting portion 21 is bent upwardly at an angle θ of about 70 °.

On the other hand, the front end portion including the suction port 22 is formed in the shape of a spatula, and the opening 25 is formed, and the opening 25 is for hanging on a hook such as a hook when not in use. In addition, a small ball portion 26 is formed at the front end, and this small ball portion 26 is fastener (when inserting the nozzle 20A into the small bags 10A, 10B, as described below). This is to make it easy to ride over the protrusion of 15).

The suction nozzle 20A is formed of a suitable plastic material, which is divided into two divided parts to the left and right as shown in FIG. 7B and separately molded by injection molding. It is fitted so that they are fitted together and joined together.

In the connecting portion 21, a check valve 27 made of a resin film is attached as shown in FIG. 8, and the check valve 27 has an oblique portion shown in FIG. It adheres to the diagonal part which is the valve seat 21a which was made, and the valve part 27a which is a non-bonded part is made to contact the valve seat 21a in a free state. In addition, the valve portion 27a is rotatable in the direction of the arrow (x) in FIG. 8B, allowing air to flow in the direction of the arrow (c) shown in FIG. 7A, but preventing air from flowing in the reverse direction. It acts as a check valve. In addition, the check valve 27 has cutouts 27b formed on both sides of the rotation support points to prevent the adhesive from peeling off due to the opening and closing operation.

On the other hand, the outer peripheral dimension of the dashed-dotted line part in FIG. 6B which is the widest part in the front end part of this suction nozzle 20A is the narrowest inner periphery of the communicating part 13 of the said degassing bag 10A, 10B. It is approximately the same as the dimension (which corresponds to the dimension D of the non-welded portion) (see FIGS. 2 and 5). In addition, the outer peripheral dimension of the cylindrical body portion shown by the dashed-dotted line Y 'in FIG. 6B is also approximately equal to the narrowest inner peripheral dimension of the communicating portion 13.

Next, a method of degassing the degassing table 1B using the suction nozzle 20A configured as described above will be described with reference to FIG. 9. The same applies to the suction nozzles 20B and 20C described next. In addition, the usage described herein is of course only one example.

First, the connecting portion 21 of the suction nozzle 20A is connected to the suction pipe or the suction hose of the vacuum cleaner. Then, the small door 7 of the degassing stand 1B is lifted up, and the small door of the small bag 10B is lifted up, and the force is applied upwards to the resin film 11 and the pressure is lowered to the resin film 11. The fastener 15 is opened. The front end of the suction nozzle 20A is inserted into the opening formed in this way. When inserting the front end of the suction nozzle 20A, the rounded front end can easily ride over the fastener 15.

When the vacuum cleaner is operated while the suction nozzle 20A is inserted again and the small bag 10B is passed through, the internal air of the deaeration stage 1B is sucked. When the vacuum cleaner is stopped after the suction is finished, the check valve 27 prevents the backflow of air from the vacuum cleaner in the suction nozzle 20A.

In addition, when the suction nozzle 20A is pulled out of the small bag 10B after the suction is finished, the contents 11 and 12 flattened in the spatula portion of the front end are compressed and the outer resin film of the degassing stand 1B. It becomes stuck in (2) and there is no gap. In addition, the outer circumferential surface of the front end portion is also in close contact with the inner circumferential surface of the small bag 10B, so that almost no gap occurs. Therefore, when the suction nozzle 20A is pulled out, backflow of air at the outer circumferential surface portion of the nozzle 20A can be almost certainly prevented.

To pull the suction nozzle 20A out of the small bag 10B, the fastener 15 can be fitted by simply pressing it. In order to be easily fitted in this way, the length of the fastener 15 is preferably 100 mm or less. If the length of the fastener 15 becomes longer, it is bent and the uneven parts 17 and 18 do not fit correctly, and there is a hassle to push it by sliding from one end to the other end. However, if the fastener 15 is short, both ends are fitted while the uneven parts 17 and 18 form a straight line, so that it is securely fitted simply by pressing from the upper side.

Further, when the suction nozzle 20A is pulled out from the small bag 10B, the pulling force acts in the direction indicated by the arrow Z in Fig. 6A. However, since the direction in which the connecting portion 21 of the suction nozzle 20A is pulled out of the pipe or the hose of the vacuum cleaner is in the direction of the arrow Z ', the connecting portion 21 may be pulled out of the vacuum cleaner by the pulling force of the arrow Z. Nothing like that will happen. In order to exhibit such an effect, it is preferable that the angle (theta) of the connection part 21 of 20 A of suction nozzles is set to 20 degrees or more.

In addition, since the check valve 27 is installed at a rear side, that is, above the bent portion of the suction nozzle 20A, the back flow of air is maintained by maintaining the posture of closing the inside of the nozzle by its own weight. It can be prevented well.

In addition, since the suction port 22 is in the direction of sucking air from the lower side, the suction port 22 is not adsorbed to the exterior resin film 2 of the deaeration zone 1B, so that the suction action is not lowered or stopped.

Fig. 10 is a view showing a second embodiment of the suction nozzle according to the present invention. The suction nozzle 20B has a substantially box shape as shown in Fig. 10, and its front end, bottom and both sides. A plurality of suction ports 22 are provided, and the basic configuration and operation are the same as those of the suction nozzle 20A described above.

The characteristic points of the suction nozzle 20B according to the second embodiment are that the front end is rounded, and the flange 29 is formed at the root of the connection part 21 which is the rear part. (It may be formed around the whole, or may be divided and formed in the circumferential direction).

In this way, the front end is rounded, which means that it is rounded on the vertical plane as shown by arrow E in FIG. 10A, or rounded on the horizontal plane as shown by arrow F. The resulting effect is that the protrusion of the fastener 15 can easily ride over like the small ball 26. In particular, it is important to be round on the vertical plane.

In addition, when the connecting portion 21 is inserted into the distal end of the hose or pipe having an inner diameter larger than the outer diameter of the connecting portion 21, extra air is sucked in if the front end of the hose or pipe is pressed against the flange 29 so as to be in close contact. Can be prevented.

11 to 17 show a third embodiment of the suction nozzle according to the present invention. The suction nozzle 20C basically has a similar configuration and operation to the suction nozzle 20A described above. The same parts will be denoted by the same reference numerals and redundant description thereof will be omitted.

That is, the suction nozzle 20C has a circular section connecting portion 21 which can be connected to the front end of the pipe or hose of the cleaner as shown in FIG. 11, and the main suction port 22 and the front end thereof. It consists of the cylindrical body provided with the sub suction ports 23 and 24, and the main part becomes a flat cross section shape (refer FIG. 13). The front end including the main suction port 22 has a so-called spatula shape.

In addition, the suction nozzle 20C is made of a suitable plastic material, which is divided into an upper member and a lower member shown in FIGS. 14 and 15, and separately injected and molded to be integrated by being bonded together. It is.

In addition, a check valve 28 is attached to the connecting portion 21 as shown in FIG. 16, and the check valve 28 is substantially similar to the semicircular attachment portion 28a as shown in FIG. 17. As an integrally formed article consisting of an elliptical valve portion 28b, the boundary between the attachment portion 28a and the valve portion 28b is a thin flake portion 28c that is easily bent.

Moreover, the said attachment part 28a is fitted in the groove | channel 21b formed in the connection part 21, and the said valve part 28b is in contact with the inner peripheral surface of the connection part 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 the arrow C but prevents air from flowing in the reverse direction.

In addition, the outer peripheral dimension of the widest width dimension part in the front-end | tip part of this suction nozzle 20C which is a part shown with the dashed-dotted line in FIG. 11A is the dimension of the non-welded part which can be seen in FIG. The inner circumferential dimension of the narrowest portion of the communicating portion 13 of the degassing small bags 10A and 10B corresponding to D) is substantially the same. In addition, the outer peripheral dimension of the cylindrical body part shown by the dashed-dotted line Y 'in FIG. 11A is also approximately equal to the inner peripheral dimension of the narrowest part of the communication part 13. As shown in FIG.

The degassing operation of extracting air from the degassing stages 1A and 1B with the suction nozzle 20C configured as described above is basically the same as the use method described for the suction nozzle 20A described above, and the effect is the same. to be.

On the other hand, the deaeration zone, the suction nozzle, and combinations thereof according to the present invention are not limited to the above-described embodiments, and can be variously changed within the scope of the gist.

In particular, the overall roughness of the suction nozzle, the position of the suction port, the shape, the shape of the check valve, and the like can be arbitrarily selected. The check valves may be provided in two places. In addition, the rear part of the suction nozzle may be integrally coupled to the vacuum suction device. The position where the small bag for degassing is attached can be arbitrarily determined, and it may be provided not only in one place but also in several places with respect to the degassing stand.

In addition, as a non-return means, an air blocking plate is installed in the nozzle instead of the check valve shown in the above embodiment, and the air blocking plate is moved to the blocking position and the open position by interlocking with a knob or a button which can be operated by a user. You may comprise so that it may be possible.

In addition, the degassing stand may be comprised by various sealing methods, and the thing of various shapes can also be used also for the small bag for degassing.

In the degassing table having the suction nozzle configured as described above, the backflow of the air is prevented by the reverse flow prevention means provided in the suction nozzle, and the fastener made of the uneven portion is attached to the small bag for degassing into which the suction nozzle is inserted. After the nozzle is removed, the fastener can be closed to reliably block the inflow of air.

Claims (17)

A degassing small bag made of a resin film communicating with the opening and the inside of the back main body is welded to the inside of the opening formed in a part of the resin film constituting the back main body, so that it can be easily opened and closed by the small bag. Degassing stage with fasteners made of, The rear part can be connected to the vacuum suction device, and the front end portion formed with the suction port is made of a cylindrical body which can be inserted into the small bag for degassing, and the flow of air from the suction port to the rear part in the cylindrical body is A degassing table provided with a suction nozzle, wherein the suction nozzle comprises a suction nozzle that permits but prevents the flow of air from the rear portion to the suction port. The degassing table having a suction nozzle according to claim 1, wherein a mark indicating a position and a direction in which the suction nozzle is inserted is printed on the small bag for degassing. 2. The detachment with a suction nozzle according to claim 1, wherein the dimension of the outer circumference of the front end where the suction port of the suction nozzle is formed is approximately equal to the dimension of the inner circumference of the narrowest portion of the degassing bag. Expectation. The degassing table provided with a suction nozzle of Claim 1 in which the front end part in which the suction port of the said suction nozzle was formed became the spatula shape which flattened the said small bag for degassing. The degassing table provided with the suction nozzle of any one of Claims 1, 3, and 4, wherein the vacuum suction device to which the rear part of the suction nozzle is connected is a vacuum cleaner. 5. The stripping table according to any one of claims 1, 3 and 4, wherein a rear portion of the suction nozzle is integrally coupled to a vacuum suction device. A degassing small bag made of a resin film communicating with the opening and the inside of the back main body is welded to the inside of the opening formed in a part of the resin film constituting the back main body, so that the recess and the convex part can be easily opened and closed by the small bag. Degassing stage characterized in that the fastener is made of. 8. The stripping table according to claim 7, wherein the opening is formed of a small door formed by a slit. The degassing table according to claim 8, wherein the degassing bag has a small door made of a resin film, and the door and the small door constituting the opening are welded. 8. The degassing stand according to claim 7, wherein the communicating portion of the small bag for degassing is formed by treating the resin film with no welding. A suction nozzle for sucking air from the degassing stand inserted into a degassing bag installed in the degassing stand while being connected to a vacuum suction device, The rear part may be connected to the vacuum suction device, and the front end portion formed with the suction port may be formed into a cylindrical body that can be inserted into the degassing bag, and air flows from the suction port to the rear part in the cylindrical body. A suction nozzle, characterized in that the suction nozzle is provided with a backflow prevention means that allows but prevents air from flowing from the rear portion to the suction port. 12. The suction nozzle according to claim 11, wherein the rear part is bent upward by 20 ° or more. 12. The suction nozzle according to claim 11, wherein a flange is formed around the entire circumference of the rear portion. 12. The suction nozzle according to claim 11, wherein an outer circumference of the front end where the suction port is formed is substantially equal to an inner circumference of the narrowest part of the degassing bag. 12. The suction nozzle according to claim 11, wherein the front end portion formed with the suction port has a flat spatula shape. 12. The suction nozzle according to claim 11, wherein the vacuum suction device to which the rear part is connected is a vacuum cleaner. 16. The suction nozzle according to any one of claims 11 to 15, wherein the rear portion is integrally coupled to the vacuum suction device.