WO2021039451A1

WO2021039451A1 - Vessel opening/closing device

Info

Publication number: WO2021039451A1
Application number: PCT/JP2020/030937
Authority: WO
Inventors: 祐吾上畑
Original assignee: サンデン・リテールシステム株式会社
Priority date: 2019-08-23
Filing date: 2020-08-17
Publication date: 2021-03-04
Also published as: JP2021031121A

Abstract

[Problem] To provide a vessel opening/closing device that facilitates the work of replacing with a replacement gas. [Solution] The present invention is provided with: a holder part 1, in the interior of which a supply chamber 1a where replacement gas is supplied is formed, and which is formed so that a vessel B can be installed with an opening of the vessel B being connected to the supply chamber 1a; a plug-opening tower 4 which is arranged at the holder part 1 and in which is formed a plug-opening chamber 4a that allows a plug-opening part 2 retaining a plug C1 to move in a direction separating from the opening so as to remove the plug C1 from the opening; and a plug-closing tower 5 which is arranged at the holder part 1 and in which is formed a plug-closing chamber 5a for allowing a plug-closing part 3 to move towards the opening so as to close up the opening. The supply chamber 1a is formed so as to communicate with the plug-opening chamber 4a and the plug-closing chamber 5a. A discharge port 10 for connecting to the supply chamber 1a is formed in the holder part 1. Further included is an opening/closing section 6 arranged so that the discharge port 10 can be opened and closed. Gas in the supply chamber 1a is discharged, in response to the supply of replacement gas, from the discharge port 10 that has been opened by the opening/closing section 6.

Description

Container switchgear

The present invention relates to a container opening / closing device, and more particularly to a container opening / closing device in which a container whose mouth is closed by a stopper is fixed to remove the stopper and the mouth from which the stopper is removed is closed.

Conventionally, a container opening / closing device that fixes a container containing a substance such as wine, removes a stopper such as a cork stopper that closes the mouth of the container, and closes the mouth from which the stopper has been removed with an alternative stopper. Has been proposed. Here, when opening and closing the mouth of the container with the stopper and the alternative stopper, it is required to suppress the oxidation of the substance in the container.

Therefore, as a technique for suppressing the oxidation of substances in a container, for example, in Patent Document 1, the existing bottle stopper and the alternative stopper portion are replaced without allowing air to enter the bottle containing the fluid. Disclosed is a plug changing device that can be used. In this plug changing device, an opening member is arranged in the first airtight tower and an alternative plug portion is arranged in the second airtight tower, and a replacement gas such as nitrogen gas is placed in the first airtight tower and the second airtight tower. Since the mouth of the container is opened and closed by the stopper and the alternative stopper in the state of being filled with, the oxidation of the substance in the container can be suppressed.

Japanese Patent No. 3649334

However, in the plug changing device of Patent Document 1, air bleeding valves are arranged in each of the first airtight tower and the second airtight tower. Therefore, in order to replace the air in the first airtight tower and the air in the second airtight tower with the replacement gas, the air bleeding valve arranged in the first airtight tower and the air bleeding valve arranged in the second airtight tower are used. Each of them was opened to supply the replacement gas while discharging the air inside, which may complicate the work.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a container opening / closing device that facilitates the work of replacing with a replacement gas.

The container opening / closing device according to the present invention is a container opening / closing device that holds the plug that closes the mouth of the container with the opening, removes the plug from the mouth, and closes the mouth from which the plug has been removed. A supply chamber for supplying replacement gas is formed inside, and a holder portion is formed so that a container can be attached so that the mouth portion is connected to the supply chamber, and a holder portion is arranged in the holder portion, and a stopper portion is provided from the mouth portion. An opening tower in which an opening chamber is formed for the opening part holding the plug part to move away from the mouth part, and a holder part, and the closing part is arranged to close the mouth part. It is provided with a closing tower in which a closing chamber for moving toward the mouth is formed, the supply chamber is formed so as to communicate with the opening chamber and the closing chamber, and a discharge port connected to the supply chamber is provided in the holder portion. It is formed and further has an opening / closing portion in which the discharge port can be opened / closed, and the gas in the supply chamber is discharged from the discharge port opened by the opening / closing portion according to the supply of the replacement gas.

Here, the opening tower and the closing tower are arranged adjacent to each other, and the holder portion extends so as to connect between the opening tower and the closing tower to communicate with the opening chamber and the closing chamber and to the supply chamber. It is preferable that the opening / closing portion is arranged so that the discharge port connected to the communication passage can be opened / closed between the opening / closing tower and the closing tower.

Further, it is preferable that the opening / closing portion is arranged so as to cover the discharge port and closes, and has a closing portion formed so as to be slidable between a closing position for closing the discharge port and a retracted position retracted from the discharge port. ..

Further, it further has a gas concentration detecting unit for detecting the concentration of the replacement gas in the supply chamber, and the opening / closing unit closes the discharge port when the concentration of the replacement gas detected by the gas concentration detecting unit reaches a predetermined value. Can be formed as follows.

Further, it may further have a pressure adjusting unit for adjusting the pressure by discharging the gas in the supply chamber, the opening chamber or the opening chamber when the supply chamber, the opening chamber and the opening chamber reach a predetermined pressure. preferable.

According to the present invention, a discharge port is formed so as to connect to a supply chamber communicating with the opening chamber and the closing chamber, and an opening / closing portion is arranged so that the discharge port can be opened and closed. It becomes possible to provide a container opening / closing device that facilitates.

It is a perspective view which shows the structure of the container opening / closing device which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the internal structure of the container opening and closing device. It is a perspective view which shows the structure of the holder part. It is sectional drawing which shows the state of sliding the opening and closing part. It is sectional drawing which shows how the opening holding part holds a plug part. It is a figure which shows the mode that the closing operation part is operated downward. It is a figure which shows the structure of the opening / closing part of Embodiment 2. It is a figure which shows the structure of the pressure adjustment part of Embodiment 3.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Embodiment 1
FIG. 1 shows the configuration of the container opening / closing device according to the first embodiment of the present invention. This container opening / closing device has a disk-shaped holder portion 1, and an opening portion 2, a closing portion 3, an opening tower 4, a closing tower 5, and an opening / closing portion 6 are arranged on the upper surface of the holder portion 1, and gas. The supply unit 9 is connected.

The upper surface of the holder portion 1 is rotatably formed with respect to the lower surface, and the mounting portion 7 and the gas supply pipe 8 are arranged on the lower surface.
The attachment portion 7 is formed so that the mouth portion of the container B for containing a substance can be attached. Here, as the container B, for example, a bottle containing a beverage such as wine and sake can be mentioned. The attachment portion 7 can be attached with the mouth portion of the container B closed by the stopper portion or with the stopper portion removed.
The gas supply pipe 8 communicates with the holder portion 1 and guides the replacement gas supplied from the gas supply portion 9 into the holder portion 1.

The opening tower 4 has a cylindrical shape and is arranged so as to extend upward from the upper surface of the holder portion 1.
The opening portion 2 has a rod shape and is arranged so as to be inserted into the inside from the upper end portion of the opening tower 4.

The closing tower 5 has a cylindrical shape, and is arranged adjacent to the opening tower 4 so as to extend upward from the upper surface of the holder portion 1.
The closing portion 3 has a rod shape and is arranged so as to be inserted into the inside from the upper end portion of the closing tower 5.
The opening / closing portion 6 is arranged between the opening / closing tower 4 and the closing tower 5, and is formed so that the discharge port 10 communicating with the inside of the holder portion 1 from the outside can be opened / closed.

The gas supply unit 9 is connected to the gas supply pipe 8 and supplies the replacement gas into the holder unit 1 via the gas supply pipe 8. Examples of the replacement gas include nitrogen gas that suppresses the oxidation of the substance in the container B.

Next, the internal configuration of the container opening / closing device will be described in detail.
As shown in FIG. 2, the opening tower 4 is formed with an opening chamber 4a in which the opening portion 2 moves to remove the plug portion from the mouth portion of the container B, and the closing portion 3 is a container in the closing tower 5. A closing chamber 5a that moves to close the mouth of B is formed.

The opening portion 2 has an opening operation portion 2a and an opening holding portion 2b, and the tip portion thereof is inserted into the opening chamber 4a.
The opening operation unit 2a is operated by an operator, is formed so as to extend from the outside of the opening tower 4 to the opening chamber 4a, is movable in the vertical direction, and is rotatably formed around itself. ing.
The opening holding portion 2b is arranged at the tip of the opening operation portion 2a, moves in the vertical direction according to the movement of the opening operation portion 2a, and moves in the vertical direction according to the rotation of the opening operation portion 2a. Is formed to hold.

Therefore, in the opening chamber 4a, the opening holding portion 2b moves downward toward the mouth portion of the container B in order to hold the stopper portion of the container B, and the opening holding portion holds the stopper portion of the container B. The portion 2b is formed so as to extend in the vertical direction in order to move upward so as to move away from the mouth portion.

The closing portion 3 has a closing operation portion 3a and a closing holding portion 3b, and the tip portion thereof is inserted into the closing chamber 5a.
The closing operation unit 3a is operated by an operator, is formed so as to extend from the outside of the closing tower 5 to the closing chamber 5a, and is arranged so as to be movable in the vertical direction.
The closure holding portion 3b is arranged at the tip end portion of the closing operation portion 3a and is formed so as to hold an alternative plug portion, and is moved in the vertical direction in accordance with the movement of the closing operation portion 3a.

Therefore, in the closing chamber 5a, the closing portion 3 holding the substitute plug portion moves downward toward the mouth portion of the container B in order to close the mouth portion of the container B, and the mouth portion of the container B is replaced with the substitute plug portion. The closing portion 3 closed by is formed so as to extend in the vertical direction in order to move upward so as to move away from the mouth portion.

In the holder portion 1, a supply chamber 1a connected to the gas supply pipe 8 is formed inside, and the replacement gas is supplied to the supply chamber 1a from the gas supply portion 9. The supply chamber 1a is formed so as to communicate with the opening chamber 4a of the opening tower 4 and the closing chamber 5a of the closing tower 5. Further, between the opening tower 4 and the closing tower 5 of the holder portion 1, a discharge port 10 for connecting the supply chamber 1a to the outside is formed so as to extend in the vertical direction and penetrate the holder portion 1. That is, the discharge port 10 is arranged at a position corresponding to the opening / closing portion 6. When the opening / closing unit 6 opens the discharge port 10, the gas in the supply chamber 1a is discharged from the discharge port 10 according to the supply of the replacement gas from the gas supply unit 9.

Next, the internal configuration of the holder portion 1 will be described in detail.
As shown in FIG. 3, in the holder portion 1, a partition wall 11 is arranged between the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a, and through the

communication ports

11a and 11b formed in the partition wall 11. The supply chamber 1a, the opening chamber 4a, and the closing chamber 5a are communicated with each other. Further, since the partition wall 11 is formed so as to extend between the opening chamber 4a and the closing chamber 5a, it extends so as to connect between the opening chamber 4a and the closing chamber 5a, and thus extends between the opening chamber 4a and the closing chamber 5a. A communication passage 12 is formed to communicate with the above. Therefore, the discharge port 10 is arranged so as to be connected to the communication passage 12, and the supply chamber 1a is connected to the outside via the communication passage 12.

Next, the configuration of the opening / closing unit 6 will be described in detail.
As shown in FIGS. 4A and 4B, the opening / closing portion 6 has a closing portion 6a that covers and closes the discharge port 10 and is formed with an opening 6b extending in the vertical direction. The opening / closing portion 6 is slidably arranged along the upper surface of the holder portion 1 together with the closing portion 6a. Here, the closing portion 6a is formed so as to slide between the closing position P1 that closes the discharge port 10 and the retracted position P2 that retracts from the discharge port 10 and connects the opening 6b to the discharge port 10. There is.
By sliding the opening / closing portion 6 to the closing position P1 and the retracting position P2 in this way, the discharge port 10 is opened / closed.

Next, the operation of the first embodiment will be described.
First, as shown in FIG. 1, the container B is attached to the attachment portion 7 with the mouth portion closed by the stopper portion. At this time, as shown in FIG. 4B, the closing portion 6a is located at the retracted position P2, and the discharge port 10 is opened to the outside through the opening 6b.

Subsequently, the replacement gas is supplied from the gas supply unit 9 into the holder unit 1 via the gas supply pipe 8. As shown in FIG. 3, the replacement gas supplied from the gas supply unit 9 is supplied to the supply chamber 1a of the holder unit 1 and guided to the opening chamber 4a and the closing chamber 5a through the

communication ports

11a and 11b. .. According to the supply of the replacement gas, the air in the supply chamber 1a, the opening chamber 4a and the closing chamber 5a is discharged to the outside from the discharge port 10 opened by the opening / closing portion 6. In this way, for example, by supplying the replacement gas for a predetermined time set in advance, the air in the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a can be replaced with the replacement gas.

Here, since the opening / closing portion 6 is formed so as to open / close the discharge port 10 connected to the communication passage 12 communicating the opening / closing chamber 4a and the closing chamber 5a, the opening / closing portion 6 can be opened only by opening one opening / closing portion 6. The plug chamber 4a and the plug chamber 5a can be replaced with the replacement gas, and can be easily replaced with the replacement gas, for example, as compared with the case where the opening / closing portions are arranged in the opening tower 4 and the closing tower 5, respectively. .. Further, the discharge port 10 can be opened and closed only by operating one opening / closing unit 6, and it is possible to prevent the operator from forgetting to operate the opening / closing unit 6.

Further, since the opening / closing unit 6 can open / close the discharge port 10 only by sliding the operator, the discharge port 10 can be opened / closed more easily than, for example, a screw type opening / closing the discharge port 10.
Further, since the operator can confirm the open / closed state of the discharge port 10 based on the closed position P1 and the retracted position P2 of the opening / closing unit 6, for example, the open / closed state of the discharge port 10 is confirmed based on the amount of rotation by a screw type. By comparison, the open / closed state of the discharge port 10 can be surely grasped.

Further, since the discharge port 10 is connected to the communication passage 12 that communicates the opening chamber 4a and the closing chamber 5a, the air in the opening chamber 4a and the closing chamber 5a can be efficiently discharged from the discharge port 10. it can.
Further, since the discharge port 10 is connected to the communication passage 12 between the opening tower 4 and the closing tower 5, the air in the opening chamber 4a and the closing chamber 5a can be discharged from the discharge port 10 more efficiently. Can be done.

Further, the communication passage 12 is arranged below the opening chamber 4a and the closing chamber 5a. Generally, nitrogen gas or the like used as the replacement gas is lighter than a gas such as oxygen in the air, and therefore flows into the upper parts of the opening chamber 4a and the closing chamber 5a. As a result, the air in the opening chamber 4a and the closing chamber 5a moves to the lower part, so that the air passage 12 can smoothly guide the air moved to the lower part to the discharge port 10, and the opening chamber 4a and the closing chamber 5a Air can be discharged reliably.

In this way, when the air in the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a is replaced with the replacement gas, the opening / closing portion 6 is slid to the closing position P1 by the operator as shown in FIG. 4A. Then, the discharge port 10 is closed at the closing portion 6a. As a result, the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a are sealed in a state of being filled with the replacement gas.

Subsequently, when the operator rotates the upper surface of the holder portion 1 with respect to the lower surface and the cap opening tower 4 faces the mounting portion 7 in the vertical direction, the cap opening operation portion 2a moves downward as shown in FIG. By being operated, the opening holding portion 2b is brought into contact with the plug portion C1 that closes the mouth portion of the container B. When the opening holding portion 2b comes into contact with the plug portion C1, the opening operating portion 2a is rotated to hold the opening holding portion 2b so as to engage with the plug portion C1. By operating the opening operation portion 2a upward in this state, the stopper portion C1 held by the opening holding portion 2b can be pulled out from the mouth portion of the container B.
In this way, the plug portion C1 can be easily pulled out from the mouth portion of the container B simply by the operator operating the cap opening operation portion 2a. At this time, since the opening chamber 4a is sealed in a state of being filled with the replacement gas, the plug portion C1 can be pulled out from the mouth portion without allowing air to flow into the container B.

On the other hand, when the alternative plug is inserted into the mouth of the container B from which the plug C1 has been pulled out, the upper surface of the holder 1 faces the lower surface so that the closing tower 5 faces the mounting portion 7 in the vertical direction. It is rotated. When the closing tower 5 and the mounting portion 7 face each other, as shown in FIG. 6, the closing operation portion 3a is operated downward, and the alternative plug portion C2 held by the closing holding portion 3b comes into contact with the mouth portion of the container B. Will be done. Then, when the closing operation portion 3a is further operated downward, the alternative plug portion C2 is inserted into the mouth portion of the container B.
In this way, the alternative plug portion C2 can be easily inserted into the mouth portion of the container B simply by the operator operating the plug closing operation portion 3a. At this time, since the closing chamber 5a is sealed in a state of being filled with the replacement gas, the mouth can be closed by the alternative plug C2 without allowing air to flow into the container B, and the substance in the container B can be closed. Oxidation can be suppressed.

According to the present embodiment, the discharge port 10 is formed so as to connect to the supply chamber 1a communicating with the opening chamber 4a and the closing chamber 5a, and the opening / closing portion 6 is arranged so that the discharge port 10 can be opened and closed. , The work of replacing the air in the supply chamber 1a, the opening chamber 4a and the closing chamber 5a with the replacement gas can be easily performed.

Embodiment 2
In the first embodiment described above, the opening / closing unit 6 opens / closes the discharge port 10 by being slid by the operator, but it is sufficient if the discharge port 10 can be opened / closed, and the opening / closing unit 6 is limited to those operated by the operator. is not it.

For example, as shown in FIG. 7, the opening / closing unit 21 can be arranged and the gas concentration detecting unit 22 can be newly arranged in place of the opening / closing unit 6 of the first embodiment.
The gas concentration detecting unit 22 is arranged in the supply chamber 1a of the holder unit 1 and detects the concentration of the replacement gas in the supply chamber 1a.
The opening / closing unit 21 is arranged inside the holder unit 1 so as to cover the discharge port 10, and is positioned away from the discharge port 10 when the concentration of the replacement gas detected by the gas concentration detection unit 22 is smaller than a predetermined value. To do. Then, when the concentration of the replacement gas detected by the gas concentration detecting unit 22 reaches a predetermined value, the opening / closing unit 21 is automatically displaced so as to be in close contact with the discharge port 10 and closes the discharge port 10.

With such a configuration, when the replacement gas is supplied from the gas supply unit 9 to the supply chamber 1a of the holder unit 1, the gas concentration detection unit 22 detects the concentration of the replacement gas in the supply chamber 1a. According to the supply of the replacement gas, the air in the supply chamber 1a, the opening chamber 4a and the closing chamber 5a is discharged from the discharge port 10, and the supply chamber 1a, the opening chamber 4a and the closing chamber 5a are filled with the replacement gas. As a result, the concentration of the replacement gas detected by the gas concentration detecting unit 22 reaches a predetermined value, and the detection signal is output to the opening / closing unit 21.

When the detection signal that the concentration of the replacement gas reaches a predetermined value is input from the gas concentration detection unit 22, the opening / closing unit 21 is displaced so as to be in close contact with the discharge port 10 and closes the discharge port 10.
As described above, since the opening / closing unit 21 automatically opens / closes the discharge port 10 according to the concentration of the replacement gas detected by the gas concentration detection unit 22, the discharge port 10 can be easily opened / closed.

According to the present embodiment, the opening / closing unit 21 closes the discharge port 10 when the concentration of the replacement gas detected by the gas concentration detecting unit 22 reaches a predetermined value, so that the supply chamber 1a and the opening chamber 4a The work of replacing the air in the closing chamber 5a with the replacement gas can be easily and surely performed, and the wasteful release of the replacement gas can be suppressed.

Embodiment 3
In the above-described first and second embodiments, it is preferable to arrange a pressure adjusting unit for adjusting the pressure of the supply chamber 1a, the opening chamber 4a and the closing chamber 5a.

For example, as shown in FIG. 8, the pressure adjusting unit 31 can be newly arranged in the first embodiment.
The pressure adjusting unit 31 is arranged in the opening tower 4, and when the opening chamber 4a reaches a predetermined pressure, the gas in the opening chamber 4a is discharged to the outside to adjust the pressure.

With such a configuration, when the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a are sealed by the opening / closing portion 6 in a state of being filled with the replacement gas, the opening tower 4 faces the mounting portion 7. The holder portion 1 is rotated. Then, the opening operation unit 2a is operated downward, and the opening holding unit 2b is moved downward so as to reduce the space of the opening chamber 4a. Here, since the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a are sealed by the opening / closing portion 6, the supply chamber 1a, the opening chamber 4a, and the closing chamber are closed as the opening holding portion 2b moves downward. When the pressure in the chamber 5a rises and reaches a predetermined pressure, the opening operation unit 2a may not be operated downward.
Therefore, when the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a reach a predetermined pressure, the pressure adjusting unit 31 discharges the gas of the opening chamber 4a to the outside, and the supply chamber 1a, the opening chamber 4a, and the stopper chamber 4a The closing chamber 5a is adjusted to a predetermined pressure or less. As a result, the opening operation unit 2a can be operated smoothly.

According to the present embodiment, when the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a reach a predetermined pressure, the pressure adjusting unit 31 discharges the gas in the opening chamber 4a to adjust the pressure. , The opening operation unit 2a can be operated smoothly.
In the present embodiment, the pressure adjusting unit 31 discharges the gas in the opening chamber 4a to adjust the pressure, but discharges the gas in the supply chamber 1a, the opening chamber 4a or the closing chamber 5a to reduce the pressure. It suffices if it can be adjusted, and is not limited to the opening chamber 4a. For example, the pressure adjusting unit 31 can be arranged in the holder unit 1. As a result, the pressure adjusting unit 31 can adjust the pressure by discharging the gas in the supply chamber 1a when the supply chamber 1a, the opening chamber 4a, and the closing chamber 5a reach a predetermined pressure.

In the above-described first to third embodiments, the supply chamber 1a is communicated with the opening chamber 4a and the closing chamber 5a via the connecting passage 12, but is communicated with the opening chamber 4a and the closing chamber 5a. However, it is not limited to those that are communicated through the communication passage 12. For example, the supply chamber 1a can be formed so as to directly communicate with the opening chamber 4a and the closing chamber 5a.

Further, in the above-described first to third embodiments, the discharge port 10 is formed so as to be connected to the communication passage 12, but it may be formed so as to be connected to the supply chamber 1a and is connected to the communication passage 12. It is not limited to what you do. For example, the discharge port 10 can be formed so as to be directly connected to the supply chamber 1a.

Further, in the above-described first to third embodiments, the opening portion 2 is arranged so as to be movable in the vertical direction, but the stopper portion C1 is held in order to remove the plug portion C1 from the mouth portion of the container B. It suffices if it can move away from the mouth of the container B, and is not limited to the vertical direction.
Further, in the above-described first to third embodiments, the opening portion 2 is held so as to engage with the plug portion C1 that closes the mouth portion of the container B, but it is sufficient if the plug portion C1 can be held. It is not limited to. For example, the opening portion 2 is formed in a screw shape and can be held by being screwed into the stopper portion C1 from above.

Further, in the above-described first to third embodiments, the closing portion 3 is arranged so as to be movable in the vertical direction, but it is sufficient that the closing portion 3 can be moved toward the mouth portion in order to close the mouth portion of the container B, and is limited to the vertical direction. It is not something that can be done.
Further, in the above-described first to third embodiments, the plug portion 3 is formed so as to hold the substitute plug portion C2, but it is sufficient if the mouth portion of the container B can be closed, and the cap portion 3 is closed by the substitute plug portion C2. It is not limited to.

Further, in the above-described first to third embodiments, the opening chamber 4a is formed so as to extend in the vertical direction, but the opening portion 2 holding the stopper portion C1 moves in a direction away from the mouth portion of the container B. If possible, it is not limited to the vertical direction.
Further, in the above-described first to third embodiments, the closing chamber 5a is formed so as to extend in the vertical direction, but it is sufficient that the closing portion 3 can move toward the mouth portion in order to close the mouth portion of the container B. It is not limited to the vertical direction.

1 holder part, 1a supply chamber, 2 opening part, 2a opening operation part, 2b opening holding part, 3 closing part, 3a closing operation part, 3b closing holding part, 4 opening tower, 4a opening chamber, 5 Closing tower, 5a closing chamber, 6,21 opening / closing part, 6a closing part, 6b opening, 7 mounting part, 8 gas supply pipe, 9 gas supply part, 10 discharge port, 11 partition wall, 11a, 11b communication port, 12 stations Passage, 22 gas concentration detection part, 31 pressure adjustment part, B container, C1 plug part, C2 alternative plug part, P1 closed position, P2 retracted position.

Claims

A container opening / closing device that holds a plug that closes the mouth of a container with an opening, removes the plug from the mouth, and closes the mouth from which the plug has been removed.
A supply chamber to which the replacement gas is supplied is formed inside, and a holder portion formed so that the container can be attached so that the mouth portion is connected to the supply chamber, and a holder portion.
An opening tower arranged in the holder portion and formed with an opening chamber for moving the opening portion that holds the stopper portion in a direction away from the mouth portion in order to remove the stopper portion from the mouth portion. When,
It is provided with a closing tower arranged in the holder portion and formed with a closing chamber for the closing portion to move toward the mouth portion in order to close the mouth portion.
The supply chamber is formed so as to communicate with the opening chamber and the closing chamber.
A discharge port connected to the supply chamber is formed in the holder portion, and further has an opening / closing portion arranged so that the discharge port can be opened / closed, and the discharge port opened by the opening / closing portion of the supply chamber. A container opening / closing device in which a gas is discharged according to the supply of the replacement gas.
The opening tower and the closing tower are arranged adjacent to each other.
The holder portion has a communication passage extending so as to connect between the opening tower and the closing tower, communicating the opening chamber and the closing chamber, and communicating with the supply chamber.
The container opening / closing device according to claim 1, wherein the opening / closing portion is arranged so as to open / close the discharge port connected to the communication passage between the opening / closing tower and the closing tower.
The opening / closing portion is arranged so as to cover and close the discharge port, and has a closing portion slidably formed between a closing position for closing the discharge port and a retracted position retracted from the discharge port. Item 2. The container opening / closing device according to item 1 or 2.
Further having a gas concentration detecting unit for detecting the concentration of the replacement gas in the supply chamber,
The opening / closing unit is formed according to any one of claims 1 to 3 so as to close the discharge port when the concentration of the replacement gas detected by the gas concentration detecting unit reaches a predetermined value. Container opening and closing device.
When the supply chamber, the opening chamber, and the opening chamber reach a predetermined pressure, a pressure adjusting unit that discharges gas from the supply chamber, the opening chamber, or the opening chamber to adjust the pressure is provided. The container opening / closing device according to any one of claims 1 to 4, further comprising.