JP7257686B2 - Grove port replacement method and glove port replacement jig - Google Patents

Description

The present invention relates to a glove port replacement method and a glove port replacement jig provided in a glove box.

For handling nuclear fuel materials such as plutonium (Pu), a glove box (GB) having a containment function for preventing internal exposure is used (see, for example, Patent Documents 1 and 2). A glove port for connecting gloves is attached to the glove panel on the side of the glove box.

Since the glove port installed inside the glove box is contaminated due to contact with nuclear fuel material, the internal radioactive materials diffuse when the glove port is removed. Therefore, when replacing the glove port, it is common to replace the entire glove panel to which the glove port is attached, as described in Patent Document 2.

JP 2011-149705 A JP-A-8-62390

However, the method of replacing the glove panel requires a legal technical review (approximately one year from application to approval) for the purpose of maintaining and securing the containment function. There is a problem that waste is generated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for preventing leakage of contaminants in a glove box and replacing the glove port in a short time and at low cost. aim.

A method of replacing a glove port according to one aspect of the present invention is a method of replacing a glove port attached to an attachment opening of a glove panel that constitutes an outer wall of a glove box, wherein the main opening that exposes the internal space to the outside is provided with the glove port. a first attachment step of attaching a first outer box to the outer surface of the glove panel and attaching a first inner box to the inner surface of the glove panel so as to cover the glove port; a port removing step of removing each of the plurality of parts constituting the glove port from the glove panel to the first outer box side or the first inner box side by using work gloves extending through the first outer box; a closing step of attaching a closing plate housed in the box to the glove panel to close the mounting opening; a first removing step of removing the first outer box and the first inner box from the glove panel; a second mounting step of mounting a second outer box on the outer surface of the glove panel and mounting the second inner box on the inner surface of the glove panel so as to cover the mounting opening with a main opening that exposes the internal space to the outside; an opening step of opening the mounting opening by removing the closing plate from the glove panel toward the second outer box; a port attaching step of configuring the new glove port by attaching parts housed in the second outer box and the second inner box to the attachment opening; and a second removing step of removing from the glove panel.

According to the present invention, it is possible to replace the glove port in a short time and at low cost while preventing leakage of contaminants in the glove box.

1 is a schematic diagram of a glove box; FIG. Fig. 2 is an exploded perspective view of a glove port; Fig. 3 is an assembled perspective view of the glove port; 1 is a schematic perspective view of an outer box according to this embodiment; FIG. 1 is a schematic perspective view of an inner box according to this embodiment; FIG. 4 is a flowchart of globe port exchange processing; It is a schematic perspective view which shows the state of step S11.

The glove box 1 will be described below with reference to the drawings. It should be noted that the embodiments of the present invention described below are merely examples of embodying the present invention, and the scope of the present invention is not limited to the scope of the description of the embodiments. Therefore, the present invention can be implemented by adding various changes to the embodiments. In FIG. 1, the side on which the glove panel 6 is provided is defined as "front", and the left-right direction is defined when the glove box 1 is viewed from the front side.

FIG. 1 is a schematic diagram of a glove box 1. FIG. The glove box 1 is a device for performing work (e.g., inspection, experiment, etc.) on contaminants (e.g., radioactive substances, chemical substances, bacteria, viruses, etc.) without leaking them to the outside. As shown in FIG. 1, the glove box 1 mainly includes a GB main body 2, a base 3, an intake filter 4, and an exhaust filter 5. As shown in FIG.

The GB main body 2 is box-shaped with an internal space. The GB main body 2 according to this embodiment has a rectangular parallelepiped outer shape. Also, the GB main body 2 is supported by a base 3 . Furthermore, air flows into the GB main body 2 through an intake filter 4 and air from which contaminants have been removed flows out through an exhaust filter 5 .

In addition, glove panels 6a, 6b, and 6c (hereinafter collectively referred to as “glove panels 6”) and a loading/unloading port 7 are provided on the side wall of the GB main body 2 . The number of glove panels 6 provided on the GB main body 2 is not particularly limited.

The glove panel 6 allows working with contaminants within the GB body 2 without allowing the contaminants to leak out of the GB body 2 . Specifically, the glove panel 6 is formed with a mounting opening 8 (see FIG. 2) penetrating in the thickness direction. A glove port 10 is attached to the attachment opening 8 . Although the number of mounting openings 8 formed in the glove panel 6 is not particularly limited, generally one glove panel 6 is provided with a plurality of mounting openings 8 . Details of the glove port 10 will be described later with reference to FIGS.

The carry-in/out port 7 carries an article (for example, a contaminant, an inspection device, an inner box 30 described later, etc.) into the GB main body 2 and carries out the article from the GB main body 2 without leaking contaminants from the GB main body 2. It is a port for

FIG. 2 is an exploded perspective view of the glove port 10. FIG. 3 is an assembled perspective view of the glove port 10. FIG. The glove port 10 fixes a glove 14 (see FIG. 1, not shown in FIG. 2, only the base end portion is shown in FIG. 3) extending from the mounting opening 8 toward the internal space of the GB body 2 to the glove panel 6. It is.

As shown in FIGS. 2 and 3, the glove port 10 includes a ring-shaped gasket 11 that seals the outer edge of the mounting opening 8; It mainly includes plates 16 and 17 (first pressing portion and second pressing portion), a plurality of bolts 18 and a cap 19 .

The cylindrical body 12 has a cylindrical outer shape. The flange portion 13 is a portion that protrudes radially outward from one end of the tubular body 12 (the end portion on the inner surface side of the glove panel 6) and continues in the circumferential direction. The globe 14 is fixed to the outer surface of the cylindrical body 12 with an airtight ring 14a.

When the cylindrical body 12 is inserted into the mounting opening 8 from the inner surface side of the glove panel 6 , the flange portion 13 contacts the inner surface of the glove panel 6 . Then, the glove 14 extends toward the internal space of the GB body 2 . Therefore, by inserting the hand into the glove 14 from the outer surface side of the glove panel 6, it is possible to work on the contaminants inside the GB main body 2. - 特許庁

The pressing plates 16 and 17 are flat plates having an arcuate (semicircular) outer shape. The pressing plate 16 contacts the outer surface of the glove panel 6 at a position facing a portion of the flange portion 13 in the circumferential direction. The pressing plate 17 contacts the outer surface of the glove panel 6 at a position facing another part of the flange portion 13 in the circumferential direction.

The body portion 15 is fixed to the glove panel 6 by screwing bolts 18 into bolt holes provided in the flange portion 13 and the pressing plates 16 and 17 . That is, the glove panel 6 is sandwiched between the flange portion 13 and the pressing plates 16 and 17 . Further, the cap 19 has a ring-shaped outer shape and is attached to the end portion of the cylindrical body 12 protruding to the outer surface side of the glove panel 6 .

FIG. 4 is a schematic perspective view of the outer box 20 according to this embodiment. FIG. 5 is a schematic perspective view of the inner box 30 according to this embodiment. The outer box 20 and the inner box 30 are glove port replacement jigs used when replacing the glove port 10 . The outer box 20 and the inner box 30 are box-shaped with an internal space.

As shown in FIG. 4, the outer box 20 is box-shaped with a rectangular parallelepiped outer shape. The outer box 20 is configured in a box shape by attaching a transparent acetic acid sheet to the inside of a rectangular parallelepiped frame configured by combining hollow pipes, for example. The outer box 20 mainly includes a main opening 21, three work gloves 22, 23, 24, an air supply port 25, an exhaust port (outer exhaust port) 26, an exhaust valve 27, and a take-out bag 28. Prepare.

The main opening 21 penetrates the side wall of the outer box 20 in the thickness direction. The main opening 21 exposes the inner space of the outer box 20 to the outside. The opening area of the main opening 21 is larger than that of the glove port 10 . When the outer wall of the outer box 20 is brought into contact with the outer surface of the glove panel 6 so that the glove port 10 is surrounded by the main opening 21 , the portion of the glove port 10 located on the outer surface side of the glove panel 6 is located inside the outer box 20 . accommodated in space. A gasket (made of chloroprene rubber, for example) may be attached to the outer surface of the front wall of the outer box 20 so as to surround the main opening 21 .

Working gloves 22 , 23 , 24 are attached to the side surfaces of the outer box 20 and extend toward the inner space of the outer box 20 . Workers can work in the inner space of the outer box 20 by putting their hands into the working gloves 22 , 23 , 24 without causing the air inside the outer box 20 to leak. In this embodiment, the working glove 22 is provided on the right side of the outer box 20, the working glove 23 is provided on the left side of the outer box 20, and the working glove 24 is provided on the side of the outer box 20 facing the main opening 21. .

The air supply port 25 supplies outside air to the internal space of the outer box 20 . The exhaust port 26 exhausts air from the internal space of the outer box 20 . The exhaust port 26 is provided with a pump (not shown) for exhausting air and a filter (not shown) for removing contaminants from the discharged air. The exhaust valve 27 opens and closes the exhaust port 26 . That is, when the exhaust valve 27 is opened with the main opening 21 closed, an air flow line from the air supply port 25 to the exhaust port 26 is formed in the internal space of the outer box 20 . On the other hand, when the exhaust valve 27 is closed while the main opening 21 is open, an air flow line is formed in the internal space of the outer box 20 from the air supply port 25 to the main opening 21 .

In order to check whether the inner space of the outer box 20 is contaminated or not, the take-out bag 28 is a sheet (for example, paper, cloth) wiped off the inner wall of the outer box 20 to prevent the air inside the outer box 20 from leaking. It is a portion that is taken out of the outer box 20 without causing any damage. The removal bag 28 is, for example, a bag-like portion that protrudes outward (downward) from the outer wall (lower wall) of the outer box 20 and communicates with the inner space of the outer box 20 .

As shown in FIG. 5, the inner box 30 is box-shaped with a rectangular parallelepiped outer shape. The inner box 30 is configured in a box shape by combining transparent acrylic plates, for example. The inner box 30 mainly includes a main opening 31 and an exhaust port (inner exhaust port) 32 .

The main opening 31 penetrates the front wall of the inner box 30 in the thickness direction. The main opening 31 exposes the inner space of the inner box 30 to the outside. The opening area of the main opening 31 is larger than that of the glove port 10 . When the outer wall of the inner box 30 is brought into contact with the inner surface of the glove panel 6 so that the glove port 10 is surrounded by the main opening 31 , the portion of the glove port 10 located on the inner surface side of the glove panel 6 is located inside the inner box 30 . accommodated in space. A gasket (made of chloroprene rubber, for example) may be attached to the outer surface of the front wall of the inner box 30 so as to surround the main opening 31 .

The exhaust port 32 exhausts air from the internal space of the inner box 30 . When the main opening 31 is opened, an air flow line from the main opening 31 to the exhaust port 32 is formed in the internal space of the inner box 30 .

Next, referring to FIGS. 6 and 7, a method for replacing the glove port 10 using the outer box 20 and the inner box 30 will be described. FIG. 6 is a flow chart of the glove port replacement process. FIG. 7 is a schematic perspective view showing the state of step S11. In the glove port exchange process, two outer boxes 20 and two inner boxes 30 are used.

First, the greenhouses A and B (not shown) are set up prior to the globe port exchange process. The greenhouse A covers the periphery of the grove port 10 to be replaced. The greenhouse B communicates with the greenhouse A and forms an entrance to the outside. Furthermore, an air flow line from the greenhouse B to the greenhouse A is formed. Then, the worker enters the greenhouse A through the greenhouse B, executes the glove port exchange process, and after performing the contamination inspection in the greenhouse B, exits outside.

First, as shown in FIG. 7, the worker attaches the outer box (first outer box) 20 to the outer surface of the glove panel 6 so that the main opening 21 covers the glove port 10, and the main opening 31 covers the glove port 10. An inner box (first inner box) 30 is attached to the inner surface of the glove panel 6 so as to cover (S11). Step S11 is an example of the first attachment step. The outer box 20 is carried into the greenhouse A in advance. On the other hand, the inner box 30 is loaded into the GB main body 2 through the loading/unloading port 7 .

Further, in step S11, the outer box 20 is attached with the exhaust valve 27 opened. On the other hand, the mounting opening 8 is closed by a glove port 10 . Therefore, in step S<b>11 , an air flow line is formed in the internal space of the outer box 20 from the air supply port 25 to the exhaust port 26 . On the other hand, there is no inflow or outflow of air between the outside and inside of the glove panel 6 .

Next, after attaching the outer box 20 and the inner box 30 to the glove panel 6, the worker closes the exhaust valve 27 prior to removing the main body 15 in step S12. After opening the exhaust valve 27, the worker removes the glove port 10 from the glove panel 6 using the work gloves 22 to 24 (S12). Step S12 is an example of the port removing process.

The worker removes the cap 19 toward the outer box 20 in step S12, for example. Next, the worker holds the presser plate 16 with the work glove 22 and holds the presser plate 17 with the work glove 23, removes the bolt 18 with the work glove 24, and removes the presser plates 16, 17 and Remove the bolt 18 toward the outer box 20 side. Further, the worker removes the gasket 11 and the body portion 15 toward the inner box 30 side. That is, the work of step S12 is performed by at least two workers. A tool (driver) for removing the bolt 18 is housed in the inner space of the outer box 20 in advance.

When the gasket 11 and the body portion 15 are removed toward the inner box 30, the mounting opening 8 is opened. Here, inside the outer box 20 and the inner box 30 , air is sucked from the exhaust filter 5 by the negative pressure of the glove box 1 . Also, the exhaust valve 27 is in a closed state. Therefore, an air flow line is formed from the air supply port 25 of the outer box 20 to the exhaust port 32 of the inner box 30 through the mounting opening 8 . As a result, even if the mounting opening 8 is opened, the contaminants inside the GB body 2 can be prevented from leaking to the outer box 20 side.

Next, the worker closes the attachment opening 8 by attaching a closing plate (not shown) to the glove panel 6 using the work gloves 22 to 24 (S13). Step S13 is an example of a closing step. Also, the worker opens the exhaust valve 27 after attaching the closing plate to the glove panel 6 . As a result, an air flow line is formed from the air supply port 25 of the outer box 20 to the air exhaust port 26 .

The closing plate is a flat plate that is larger than the opening area of the mounting opening 8 . A specific method for attaching the closing plate to the glove panel 6 is not particularly limited, but for example, it may be attached to the glove panel 6 around the attachment opening 8 with an adhesive tape or the like. The closing plate and the adhesive tape for attaching the closing plate to the glove panel 6 are housed in the inner space of the outer box 20 in advance.

After the glove port 10 is removed in step S12 and until the mounting opening 8 is closed by the closing plate, an air flow line is formed from the outer box 20 to the inner box 30, so the inside of the outer box 20 The space should be clean. However, the gasket 11 and the main body 15 are contaminated, and the work gloves 22 to 24 used for removing the inside of the inner box 30 may be contaminated. Contaminants can leak into the outer box 20 .

Therefore, the worker inspects whether or not the surface of the inner space of the outer box 20 is contaminated (S14). Step S14 is an example of the first inspection process. A specific method for the contamination inspection in step S14 is not particularly limited, but for example, a "smear method" can be used. The same applies to step S20, which will be described later.

A worker wipes the inner wall of the outer box 20 with a sheet (not shown) using work gloves 22 to 24, for example. The sheets are housed in the inner space of the outer box 20 in advance. Next, the operator puts the sheet, the inner wall of which has been wiped, into the take-out bag 28 . Next, the operator closes (for example, welds) the take-out bag 28 from the outside on the side closer to the internal space of the outer box 20 than the seat position. Then, the operator cuts off the take-out bag 28 at the closed portion.

As a result, the sheet can be taken out from the outer box 20 without leaking the air inside the outer box 20.例文帳に追加Next, the worker inspects whether or not the sheet taken out through the take-out bag 28 is contaminated by a well-known method. Then, if the sheet is not contaminated (S14: No), the operator proceeds to the processing from step S16. On the other hand, if the sheet is contaminated (S14: Yes), the worker executes the decontamination process (S15) without executing the processes after step S16, and executes the contamination inspection (S14) again. do. After the surface of the inner space of the outer box 20 is free from contamination (S14: Yes), the process proceeds to step S16 and subsequent steps.

Next, if the surface of the inner space of the outer box 20 is not contaminated (S14: No), the worker removes the outer box 20 and the inner box 30 from the glove panel 6 (S16). The outer box 20 is temporarily placed inside the greenhouse A. The inner box 30 is temporarily placed inside the glove box 1 . Step S16 is an example of the first removal step.

Next, the worker attaches a new outer box (second outer box) 20 to the outer surface of the glove panel 6 so that the main opening 21 covers the mounting opening 8, and the main opening 31 covers the mounting opening 8. Then, a new inner box (second inner box) 30 is attached to the inner surface of the glove panel 6 (S17). The configuration and mounting method of the outer box 20 and the inner box 30 are the same between steps S11 and S17. Step S17 is an example of the second attachment step.

In step S17, the outer box 20 is attached to the glove panel 6 with the exhaust valve 27 opened, as in step S11. On the other hand, the inner box 30 attached in step S17 is carried into the GB main body 2 with the main opening 31 closed by a closing plate (not shown) or the like, and the closing plate is removed immediately before being attached to the glove panel 6. .

The operator then closes the exhaust valve 27 . Next, the worker uses the work gloves 22 to 24 to remove the closing plate attached to the glove panel 6 toward the outer box 20 (S18). The mounting opening 8 is thereby opened. As a result, an air flow line is formed from the air supply port 25 of the outer box 20 to the exhaust port 32 of the inner box 30 through the mounting opening 8 . Step S18 is an example of the opening step.

Next, the worker attaches a new glove port 10 to the attachment opening 8 using working gloves 22 to 24 (S19). Also, the worker opens the exhaust valve 27 after attaching the new glove port 10 to the attachment opening 8 . Among the constituent parts of the new glove port 10, the gasket 11 and the body part 15 are housed in the inner space of the inner box 30 in advance, and the holding plates 16, 17, the bolts 18, the cap 19, and the tools for attaching the bolts 18 ( driver) is housed in the inner space of the outer box 20 in advance. Step S19 is an example of the port attachment process.

For example, the worker attaches the gasket 11 housed in the inner box 30 to the peripheral edge portion of the mounting opening 8, and the cylindrical body 12 of the body portion 15 housed in the inner box 30 is attached to the mounting opening 8 (more specifically, the gasket 11). Next, the worker holds the presser plate 16 with the work glove 22 and holds the presser plate 17 with the work glove 23, attaches the bolt 18 with the work glove 24, and attaches the presser plates 16, 17 and Attach the bolts 18 to the glove panel 6 . Furthermore, the worker attaches the cap 19 housed in the outer box 20 to the tip of the cylindrical body 12 .

Next, the worker inspects whether the surface of the inner space of the outer box 20 is contaminated (S20). Step S20 is an example of the second inspection process and is common to step S14. Then, if the sheet is not contaminated (S20: No), the operator proceeds to the processing from step S22. On the other hand, if the sheet is contaminated (S20: Yes), the worker executes the decontamination process (S21) without executing the processes after step S22, and executes the contamination inspection (S20) again. do. After the surface of the inner space of the outer box 20 is free from contamination (S20: Yes), the process proceeds to step S22 and subsequent steps.

Then, when the surface of the inner space of the outer box 20 is not contaminated (S20: No), the worker removes the outer box 20 and the inner box 30 from the glove panel 6 (S22). Step S22 is an example of the second removal step, and is common to step S16. After inspecting the presence or absence of contamination in the greenhouse B, the worker leaves the greenhouse B and removes the greenhouses A and B.

According to the above embodiment, for example, the following operational effects are obtained.

According to the above embodiment, some of the glove ports 10 attached to the glove panel 6 can be selectively replaced. This makes it possible to replace the glove port 10 in a short time and at a low cost compared to replacing the entire glove panel 6 .

Further, according to the above-described embodiment, by operating the exhaust valve 27, the air flow line from the air supply port 25 to the exhaust port 26 (when the mounting opening 8 is closed) and the exhaust from the air supply port 25 through the mounting opening 8 The air flow line directed to the port 32 (when the mounting opening 8 is open) can be appropriately switched. As a result, the glove port 10 can be replaced without leaking contaminants in the GB body 2 .

Further, according to the above embodiment, since the contamination inspection is performed before removing the outer box 20 from the glove panel 6, even if the pollutant leaks from the GB main body 2 to the outer box 20, the pollutant can be prevented from leaking into the greenhouse A. Further, by using the take-out bag 28 to take out the sheet from which the inner wall of the outer box 20 has been wiped, the contamination inspection work can be simplified.

Further, according to the above-described embodiment, the removal (S12) and attachment (S19) of the glove port 10 are performed using the three work gloves 22 to 24, so the attachment/detachment work can be performed efficiently. .

The embodiments and the like of the present invention have been described above, but the conditions in the examples are one example of conditions adopted to confirm the feasibility and effect of the present invention, and the present invention is based on this one example of conditions. It is not limited. Various conditions can be adopted in the present invention as long as the objects of the present invention are achieved without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1... Glove box 2... GB main body 3... Base 4... Intake filter 5... Exhaust filter 6a, 6b, 6c... Glove panel 7... Loading/unloading port 8... Mounting opening 10... Glove port 11 Gasket 12 Cylindrical body 13 Flange 14 Glove 14a Airtight ring 15 Main body 16, 17 Pressing plate (first pressing portion, second pressing portion) 18 Bolt 19 ... cap, 20 ... outer box, 21, 31 ... main opening, 22, 23, 24 ... work glove, 25 ... air supply port, 26 ... exhaust port (outer exhaust port), 27 ... exhaust valve, 28 ... removal bag , 30... inner box, 32... exhaust port (inner exhaust port)

Claims (7)

A method for replacing a glove port attached to an attachment opening of a glove panel constituting an outer wall of a glove box, comprising:
a first mounting step of mounting a first outer box on the outer surface of the glove panel and mounting the first inner box on the inner surface of the glove panel so as to cover the glove port with a main opening that exposes an internal space to the outside;
Using working gloves extending from the side surface of the first outer box toward the internal space, each of the plurality of parts constituting the glove port is removed from the glove panel toward the first outer box or the first inner box. a port removal process for removing the
a closing step of attaching a closing plate housed in the first outer box to the glove panel to close the mounting opening;
a first removing step of removing the first outer box and the first inner box from the glove panel;
a second mounting step of mounting a second outer box on the outer surface of the glove panel and mounting the second inner box on the inner surface of the glove panel so as to cover the mounting opening with a main opening that exposes the internal space to the outside;
an opening step of opening the mounting opening by removing the closing plate from the glove panel toward the second outer box;
By using working gloves extending from the side surface of the second outer box toward the inner space, the parts stored in the second outer box and the second inner box are attached to the attachment openings, thereby creating the new a port mounting process that configures the glove port;
a second removal step of removing the second outer box and the second inner box from the glove panel. In the method of replacing a glove port according to claim 1,
The first outer box includes an air supply port for supplying outside air to the inner space, an outer exhaust port for discharging air from the inner space, and an exhaust valve for opening and closing the outer exhaust port,
The first inner box has an inner exhaust port for discharging air from the internal space,
In the first mounting step, mounting the first outer box to the outer surface of the glove panel with the exhaust valve open;
closing the exhaust valve before removing the glove port from the glove panel in the port removal step;
A method of exchanging a glove port, wherein in the closing step, the exhaust valve is opened after the closing plate is attached to the glove panel. In the method for replacing a glove port according to claim 1 or 2,
The second outer box includes an air supply port for supplying outside air to the inner space, an outer exhaust port for discharging air from the inner space, and an exhaust valve for opening and closing the outer exhaust port,
The second inner box has an inner exhaust port for discharging air from the internal space,
In the second mounting step, mounting the second outer box to the outer surface of the glove panel with the exhaust valve open;
closing the exhaust valve before removing the closing plate from the glove panel in the opening step;
A method of replacing a glove port, wherein in the port attachment step, the exhaust valve is opened after the new glove port is attached to the glove panel. In the method for replacing a glove port according to any one of claims 1 to 3,
a first inspection step of inspecting whether the internal space of the first outer box is contaminated before the first removal step;
and a second inspection step of inspecting whether the inner space of the second outer box is contaminated before the second removal step. In the method for replacing a glove port according to claim 4,
The first outer box and the second outer box each have a take-out bag projecting outward from the outer wall and communicating with the inner space,
In each of the first inspection step and the second inspection step,
Wiping the inner wall with a sheet using the work glove,
The sheet whose inner wall has been wiped is housed in the take-out bag,
closing the take-out bag on the side closer to the internal space than the position of the seat;
A method for exchanging a glove port, characterized in that the seat side is separated from the closed position of the take-out bag. In the method for replacing a glove port according to any one of claims 1 to 5,
The glove port is
a ring-shaped gasket that seals the outer edge of the mounting opening;
A cylindrical body inserted into the mounting opening, a flange portion protruding radially outward from an end of the cylindrical body and continuous in the circumferential direction and in contact with the inner surface of the glove panel, and a flange portion fixed to the inner surface of the cylindrical body. a main body having a glove extending toward the interior space of the glove box;
a first pressing portion that abuts against the outer surface of the glove panel at a position facing a portion of the flange portion in the circumferential direction and is fastened to the flange portion with a bolt;
a second pressing portion that abuts against the outer surface of the glove panel at a position facing another part of the flange portion in the circumferential direction and is fastened to the flange portion with a bolt;
said first outer box and said second outer box each comprising three working gloves;
In the port removing step, the first work glove is used to hold the first holding part, the second work glove is used to hold the second holding part, and the third work glove is used to hold the first holding part. Remove the bolt using gloves for
In the port attaching step, the first working glove is used to hold the first holding part, the second working glove is used to hold the second holding part, and the third working glove is used to hold the first holding part. A method for exchanging a glove port, characterized in that the bolt is attached using a glove. A glove port replacement jig for replacing a glove port attached to an attachment opening of a glove panel constituting an outer wall of a glove box,
box-shaped first and second outer boxes attached to the outer surface of the glove panel so as to cover the glove port with a main opening that exposes the interior space to the outside;
a box-shaped first inner box and a second inner box attached to the inner surface of the glove panel so as to cover the glove port with a main opening that exposes the inner space to the outside;
The first outer box and the second outer box are
three working gloves extending from the sides toward the interior space;
an air supply port for supplying outside air to the internal space;
an outer exhaust port for discharging air from the inner space;
an exhaust valve that opens and closes the outer exhaust port;
a take-out bag projecting outward from the lower surface and communicating with the internal space,
A glove port replacement jig, wherein the first inner box and the second inner box are provided with an inner exhaust port for exhausting air from an inner space.

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