JP2004182343A - Storage device of article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To conveniently store articles such as parts and products in an inert gas temporarily. <P>SOLUTION: A housing bag 1 which houses an article is made of a synthetic resin film, an opening can be closed, a tube insertion section 6 is provided, if an insertion tube 12 is inserted into the section 6, the tube 12 communicates with the inside of the bag 1, if the tube 12 is drawn, the section 6 is closed. For a device 11 which replaces the air in the bag 1 with the inert gas, the tube 12 is connected with the first port 15 of a directional control valve 14, an exhaust device 17 is connected with a second port 16 and an inert gas storage tank 19 is connected with a third port 18, respectively. The article is put in the bag 1 and the opening is closed, the tube 12 is inserted into the section 6, the first port 15 and the second port 16 of the valve 14 communicate with operate the device 17 to discharge the air in the bag 1, next, the first port 15 and the third port 18 of the directional control valve communicate with inject the inert gas into the bag 1 from the tank 19. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for storing, in an inert gas, an article that easily undergoes deterioration such as rust and discoloration in the air.
[0002]
[Prior art]
In a parts manufacturing factory or a product assembly factory, parts and products may be temporarily stored before being used in the next process. However, parts or products made of metal or plated with metal may undergo deterioration such as rust or discoloration on the surface when the storage period in the air is prolonged.
[0003]
Therefore, parts and products that are liable to be degraded in air are stored in a box-shaped storage provided with an atmosphere replacement device as disclosed in Patent Document 1, and the air in the storage is converted into an inert gas. It will be replaced and stored in an inert gas.
[0004]
[Patent Document 1]
JP-A-10-321714
[Problems to be solved by the invention]
However, the box-type storage provided with the atmosphere replacement device as described above is a large and large-scale device. Of course, it is expensive. It is not suitable for temporarily storing a small amount of articles such as parts and products in an inert gas simply and inexpensively.
[0006]
[Means for Solving the Problems]
1) A storage bag for storing articles such as parts and products, and a replacement device for replacing air in the storage bag with an inert gas.
The storage bag is formed by welding a part of the periphery of the front side piece and the back side piece of the synthetic resin film to form a bag, and the non-welded part of the periphery of the front side piece and the back side piece of the bag is used as an opening for receiving articles. , The opening of the bag can be closed by fasteners or welding, and a pipe insertion part for replacing the air in the bag with an inert gas is provided,
The pipe insertion part overlaps the front side piece and the back side piece of the synthetic resin film and welds the sides on both sides thereof, forming an insertion passage between the front side piece and the back side piece,
Insert the pipe insertion part between the peripheral parts of the front side piece and the back side piece of the storage bag, arrange both ends of the insertion path of the pipe insertion part inside and outside the storage bag, and connect the front side piece and the back side piece of the storage bag. Weld the front side piece and the back side piece of the pipe insertion part to the peripheral part, respectively,
When the insertion tube is inserted from the outside of the storage bag into the insertion passage of the pipe insertion portion, the insertion tube communicates with the inside of the storage bag, and the insertion tube is connected to the outside of the storage bag through the insertion passage of the tube insertion portion. When it is pulled out, the insertion passage of the pipe insertion part is closed,
The replacement device connects the insertion tube to a first port of a directional control valve, such as a three-way cock or a three-port two-position valve, and connects a second port of the directional control valve to a vacuum cleaner, a vacuum pump, or a blower. Such an exhaust device is connected, and an inert gas storage tank such as a nitrogen gas tank or an argon gas tank is connected to the third port of the directional control valve,
An article is put into the storage bag through the opening, the opening is closed, an insertion pipe is inserted into the insertion passage of the pipe insertion section, and the exhaust port is connected to the first port and the second port of the directional control valve to thereby operate the exhaust device. Activate to evacuate the air in the storage bag containing the articles, and then communicate the inert gas into the storage bag from the inert gas storage tank through the first and third ports of the directional control valve. An article storage device having a configuration.
[0007]
2) In the article storage device described above,
The exhaust device is a vacuum cleaner that sucks dust together with air.
[0008]
3) In the article storage device described above,
The directional control valve is a three-way cock operated manually.
[0009]
4) In the above article storage device,
The means for closing the opening of the storage bag is a fastener or welding.
[0010]
【The invention's effect】
In the article storage device of the present invention, the storage bag and the replacement device are not integrated. One replacement device is used for many storage bags. The storage bag is made of a synthetic resin film, so that both large and small bags can be easily manufactured, and the structure is simple and inexpensive.
[0011]
As the replacement device, an easily available and inexpensive device such as a vacuum cleaner can be used as an exhaust device that discharges air from the storage bag. In addition, an inexpensive valve having a simple structure, such as a three-way cock, which is a manually operated three-port two-position valve, can be used as the direction switching valve.
[0012]
Articles such as parts and products, whether small or large, can be temporarily and simply stored at low cost in an inert gas.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
[First example (see FIGS. 1 to 4)]
The article storage device of this embodiment includes a flat rectangular storage bag 1 for storing an article such as a part or a product, and a replacement device 11 for replacing the air in the storage bag 1 with an inert gas.
[0014]
The storage bag 1 is made of a transparent synthetic resin film, and as shown in FIG. 1, a front side piece 2 and a back side piece 3 of a square transparent synthetic resin film are overlapped, and a peripheral portion of the front side piece 2 and the back side piece 3 is formed. , A left side portion, a right side portion, and a bottom side portion are welded to form a bag. The non-welded portion and the upper side of the periphery of the front side piece 2 and the back side piece 3 of the bag are formed as openings 4 for receiving articles.
[0015]
The storage bag 1 is provided with a fastener 5 for airtightly closing the opening 4. The fastener 5 is of a type in which a projecting ridge and a groove formed of a synthetic resin having elasticity are fitted and engaged by human power. The ridges and grooves of the fastener 5 are formed on the inner surfaces of the upper side of the back piece 3 and the front piece 2 in the left-right direction, respectively.
[0016]
Further, the storage bag 1 is provided with a pipe insertion portion 6 for replacing air in the bag with an inert gas. The pipe insertion portion 6 is made of a transparent synthetic resin film, and the front side piece 7 and the back side piece 8 of the elongated rectangular transparent synthetic resin film are overlapped. Each of them is welded to form a flat strip-shaped insertion passage 9 sandwiched between left and right welding sides between the front side piece 7 and the back side piece 8.
[0017]
The pipe insertion portion 6 is inserted between the bottom side of the front side piece 2 and the back side piece 3 of the storage bag 1, and both ends of the insertion passage 9 are arranged inside and outside the storage bag 1. The overlapping portion of the bottom of the front piece 2 of the storage bag 1 and the front piece 7 of the pipe insertion portion 6 is welded. The overlapping portion of the bottom side of the back side piece 3 of the storage bag 1 and the back side piece 8 of the pipe insertion part 6 is welded. As shown in FIG. 2, when a circular insertion tube 12 is inserted into the insertion passage 9 from outside the storage bag 1, the insertion tube 12 penetrates the insertion passage 9. It communicates with the inside of the storage bag 1. When the insertion tube 12 is extracted from the insertion passage 9 to the outside of the storage bag 1, the insertion passage 9 is closed. The insertion passage 9 is a normally closed type.
[0018]
As shown in FIG. 2, the replacement device 11 connects an insertion tube 12 to be inserted into the tube insertion portion 6 of the storage bag 1 to a first port 15 of a direction switching valve 14 with a bendable hose 13. . An exhaust device 17 is connected to the second port 16 of the direction switching valve 14 by a bendable air pipe. An inert gas storage tank 19 is connected to the third port 18 of the direction switching valve 14 by a bendable gas pipe.
[0019]
The direction switching valve 14 is a three-port two-position valve, and is a three-way cock operated manually. In this three-way cock, as shown in FIG. 3, a round shaft-shaped valve element 22 is rotatably fitted in a valve hole penetrating the main body 21 in the up-down direction. The valve element 22 penetrates the passage between the outer peripheral surface and the lower end surface, and the lower end opening of the passage is the first port 15. The main body 21 penetrates two passages between the inner peripheral surface and the outer peripheral surface, and the outer end of one passage is the second port 16 and the outer end of the other passage is the third port 18. A lever 23 is attached to the upper end of the valve body 22. The operator operates the lever 23 by hand. The first port 15 communicates with the second port 16 to close the third port 18 as shown in FIG. 3, or the first port 15 communicates with the third port 18 to close the second port 16. To close.
[0020]
The exhaust device 17 is a vacuum cleaner that sucks in and discharges air. They use a vacuum cleaner that sucks trash together with the air. The inert gas storage tank 19 is a closed tank with a valve filled with nitrogen gas at a high pressure. This is a nitrogen gas tank.
[0021]
When this storage device is used, the fastener 5 is opened to open the opening 4, and an article b such as a machined metal part obtained by machining a metal material is put into the storage bag 1 from the opening 4. A desired number of metal articles b are packed in the storage bag 1. Thereafter, as shown in FIG. 4, the fastener 5 is closed, and the opening 4 is airtightly closed.
[0022]
As shown in FIG. 2, the insertion tube 12 is inserted into the tube insertion portion 6 of the storage bag 1 from the outside of the storage bag 1, and the insertion tube 12 communicates with the inside of the storage bag 1. The directional control valve 14 connects the first port 15 to the second port 16 and closes the third port 18. Next, the exhaust device 17 is operated. Then, the air in the storage bag 1 storing the article b is discharged into the atmosphere via the insertion pipe 12, the first port 15 and the second port 16 of the direction switching valve 14, and the exhaust device 17. The inside of the storage bag 1 is exhausted. When the storage bag 1 contracts due to the exhaustion and the front side piece 2 and the back side piece 3 of the storage bag 1 come into close contact with the article b inside, the exhaust device 17 is stopped.
[0023]
After the exhaust, the directional control valve 14 operates the lever 23 to connect the first port 15 to the third port 18 and close the second port 16. Next, the valve of the inert gas storage tank 19 is opened. Then, the high-pressure inert gas in the inert gas storage tank 19 flows into the storage bag 1 via the third port 18 and the first port 15 of the direction switching valve 14 and the insertion pipe 12. By the injection of the inert gas, as shown in FIG. 4, the storage bag 1 expands, and the space around each article b in the storage bag 1 is filled with the inert gas. When the pressure in the storage bag 1 becomes slightly higher than the atmospheric pressure, the valve of the inert gas storage tank 19 is closed. Next, the insertion tube 12 is extracted from the insertion passage 9 to the outside of the storage bag 1. The insertion passage 9 is closed.
[0024]
The article b put in the storage bag 1 is stored in an inert gas. Even in the case of a metal article b that easily undergoes deterioration such as rust and discoloration in the air, such deterioration is unlikely to occur in an inert gas. The article b stored in the storage bag 1 can be visually recognized from the outside through the transparent front side piece 2 or the back side piece 3.
[0025]
When taking out the article b temporarily stored in the inert gas in the storage bag 1, the fastener 5 is opened to open the opening 4, and the article b in the storage bag 1 is taken out from the opening 4. The inert gas in the storage bag 1 flows out of the opening 4.
[0026]
The storage bag 1 is used again in the same manner. The storage bag 1 with the fastener 5 is used repeatedly.
[0027]
[Second example (see FIGS. 5 to 7)]
The article storage device of the present embodiment uses welding instead of the fastener 5 of the first embodiment as means for closing the opening 4 of the storage bag.
[0028]
The storage bag 21 is made of a transparent synthetic resin film that can be welded by heating and pressurizing. As shown in FIG. 5, the front side piece 2 and the back side piece 3 of the square-shaped weldable transparent synthetic resin film are overlapped with each other. A bag is formed by welding a part of the peripheral portion of the piece 2 and the back piece 3, the left side, the right side, and the bottom side. The non-welded portion and the upper side of the periphery of the front side piece 2 and the back side piece 3 of the bag are formed as openings 4 for receiving articles.
[0029]
When closing the opening 4 of the storage bag 21, the upper side of the front side piece 2 and the upper side of the back side piece 3 are overlapped and heated and pressed, and as shown in FIGS. Then, the transparent synthetic resin film of the portion is transversely welded and welded.
[0030]
The storage bag 21 is provided with the pipe insertion portion 6 in the same manner as in the first example. The replacement device 11 is the same as in the first example.
[0031]
When this storage device is used, a storage box h filled with metal articles b is put into the storage bag 21 from the opening 4 that is open. Thereafter, the front side piece 2 and the back side piece 3 of the opening 4 are overlapped and heated and pressurized, and the transparent synthetic resin films 2 and 3 on the front and back of the opening 4 are welded transversely in the left and right direction, and the opening 4 is airtight. To close.
[0032]
After closing the opening 4 with the weld y, the replacement device 11 is used as in the first example. The air in the storage bag 21 is exhausted by the exhaust device 17. After evacuation, the storage bag 21 is filled with an inert gas from the inert gas storage tank 19.
[0033]
When the article b temporarily stored in the inert gas in the storage bag 21 is taken out, the inside of the welded portion y of the opening 4 is cut transversely in the left-right direction, and the welded portion y of the opening 4 is cut off. The opening 4 is opened. The storage box h containing the article b in the storage bag 21 is taken out from the opening 4.
[0034]
The storage bag 21 is less expensive than the storage bag 1 in the first example because there is no fastener 5. The storage bag 21 without the fastener 5 is disposable. Alternatively, in a state where the welded portion y of the opening 4 is cut off and the vertical direction is slightly shortened, the same operation is performed again.
[0035]
[Modification]
1) In the first example of the above-described embodiment, the fastener 5 for closing the opening 4 of the storage bag 1 is of a type in which an operator directly operates the coupling and separation of the ridge and groove by hand. However, there is provided a slider for joining and separating the ridge and the groove, and the slider is manually moved by the operator along the ridge and the groove.
[0036]
2) In the first and second examples of the above-described embodiment, the storage bags 1 and 21 have one size, but storage bags of various sizes such as large bags and small bags are prepared and stored. To be used depending on the size and quantity of the article b to be prepared or the storage box h packed with the article b.
[0037]
3) In the first and second examples of the above-described embodiment, the storage bags 1 and 21 are used to form a bag by welding a part of the peripheral portion of the superposed synthetic resin films 2 and 3. Although two synthetic resin films 2 and 3 are superposed, one synthetic resin film is folded in two and superposed. Alternatively, one cylindrical synthetic resin film is folded flat and overlapped.
[Brief description of the drawings]
FIG. 1 shows a storage bag of an article storage device according to a first example of an embodiment of the present invention, wherein (a) is a front view, (b) is an AA line end view of (a), and (c) is ( (a) is an end view taken along the line BB, and (d) is an end view taken along the line CC in (a).
FIG. 2 is a schematic view of a part of a storage bag of the article storage device and a replacement device.
FIG. 3 is a vertical sectional view of a direction switching valve and a three-way cock of the replacement device.
FIG. 4 is a schematic cross-sectional view showing a state where articles are packed in a storage bag of the article storage apparatus and temporarily stored in an inert gas.
5A and 5B show a storage bag of an article storage device according to a second example of the embodiment of the present invention, wherein FIG. 5A is a front view, and FIG. 5B is an end view taken along line DD of FIG.
FIG. 6 is a schematic front sectional view showing a state in which articles are packed in a storage bag of the article storage apparatus and temporarily stored in an inert gas.
FIG. 7 is a sectional view taken along line EE of FIG. 6;
[Explanation of symbols]
1, 21 Storage bag made of synthetic resin film 2 Synthetic resin film, front side piece 3 Synthetic resin film, back side piece 4 Opening 5 Fastener 6 Pipe insertion part made of synthetic resin film 7 Front side piece 8 of synthetic resin film Synthetic resin film Back side piece 9 Insertion passage 11 Replacement device 12 Insertion tube 13 Hose 14 Directional switching valve, 3 port 2 position valve, three-way cock 15 manually operated 1st port 16 2nd port 17 Exhaust device, vacuum cleaner 18 3rd Port 19 Inert gas storage tank, nitrogen gas tank y Welding part of opening, welding b Metal goods, metal machined parts h Article storage box

Claims (5)

It consists of a storage bag for storing articles such as parts and products, and a replacement device for replacing the air in the storage bag with an inert gas.
The storage bag is formed by welding a part of the periphery of the front side piece and the back side piece of the synthetic resin film to form a bag, and the non-welded part of the periphery of the front side piece and the back side piece of the bag is used as an opening for receiving articles. , The opening of the bag can be closed, and a pipe insertion portion for replacing the air in the bag with an inert gas is provided,
The pipe insertion part overlaps the front side piece and the back side piece of the synthetic resin film and welds the sides on both sides thereof, forming an insertion passage between the front side piece and the back side piece,
Insert the pipe insertion part between the peripheral parts of the front side piece and the back side piece of the storage bag, arrange both ends of the insertion path of the pipe insertion part inside and outside the storage bag, and connect the front side piece and the back side piece of the storage bag. Weld the front side piece and the back side piece of the pipe insertion part to the peripheral part, respectively,
When the insertion tube is inserted from the outside of the storage bag into the insertion passage of the pipe insertion portion, the insertion tube communicates with the inside of the storage bag, and the insertion tube is connected to the outside of the storage bag through the insertion passage of the tube insertion portion. When it is pulled out, the insertion passage of the pipe insertion part is closed,
The replacement device connects the insertion pipe to the first port of the directional control valve, connects the exhaust device to the second port of the directional control valve, connects the inert gas storage tank to the third port of the directional control valve,
An article is put into the storage bag through the opening, the opening is closed, an insertion pipe is inserted into the insertion passage of the pipe insertion section, and the exhaust port is connected to the first port and the second port of the directional control valve to thereby operate the exhaust device. Activate to evacuate the air in the storage bag containing the articles, and then communicate the inert gas into the storage bag from the inert gas storage tank through the first and third ports of the directional control valve. An article storage device having a configuration. The storage device according to claim 1, wherein the exhaust device is a vacuum cleaner that sucks dust together with air. The article storage device according to claim 1, wherein the direction switching valve is a three-way cock operated manually. 4. The article storage device according to claim 1, wherein the means for closing the opening of the storage bag is a fastener. 4. The article storage device according to claim 1, wherein the means for closing the opening of the storage bag is welding.

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