JPH09269399A - Globe box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate exchanging of an illumination lamp by shutting a ceiling of a box body or an opening of a wall part with an airtight light-passing cover, and illuminating the inside of the box body via the cover from outside. SOLUTION: A light-passing cover 15 is set to cover an opening 14 formed in a ceiling wall 13 of a globe box. The cover 15 consists of a projecting part 15a to be inserted in the opening 14 and an edge part 15b wider than the opening 14 continuing from the projecting part 15a. A seal material 16 is set at a part of the cover 15 in touch with a peripheral edge and an end edge of the opening 14 to secure airtight properties inside the box. A fluorescent lamp 11 is fitted to an illumination instrument 12, which is held by an illumination instrument-holding plate 18 via a reflecting plate 17. Both side faces of the holding plate 18 are of the same size as the edge part 15b. The holding plate 18 and cover 15 are fixed by a set screw 19 after the holding plate 18 is arranged to be even with the edge part 15b. A slit 18a is formed penetrating the reflecting plate 17 and holding plate 18. The globe box is accordingly communicated with the outside air, thereby to let the generated heat out. In this structure, the fluorescent lamp 11 can be easily exchanged from outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing radioactive contamination and radiation exposure, for example, a glove which is a box-shaped device provided with an airtight window, gloves and the like for handling radioactive substances in an isolated state. It's about boxes.

[0002]

2. Description of the Related Art FIG. 6 is an explanatory view showing the structure of a glove box, wherein FIG. 6A is a front view and FIG. As shown in the figure, the glove box (60) provided on the pedestal (61) includes a housing (63) having a transparent panel (62) on the front and back sides. The transparent panel (62) and the housing (63) of each of these are kept airtight. Panels (62)
Is equipped with multiple globe ports (64)
The hem of a glove (long glove, not shown) is locked to each of the (64) to keep the inside airtight. A closure lid is attached to the unused glove port (64).

A small port (65) for carrying in and out a small object such as an operated object and a large port (66) for carrying in and out a large device are provided inside the side wall of the housing (63). There is. The glove box (60) is for preventing radioactive contamination and radiation exposure, and the air in the housing is introduced into the inside through the air supply filter (67) installed on the frame. Exhaust gas is communicated to the valve (68) on the top of the housing by a high performance filter (6
Exhaust to the glove box exhaust system (70) through 9),
It is in a state of being isolated from the outside air where workers are.

FIG. 7 is an explanatory view showing a state of installation of an illumination lamp of a conventional glove box, FIG. 7A is a plan view, and FIG. 7B is a side view. The glove box lighting (71) is a lighting fixture (72) mounted on the ceiling surface (73) of the glove box (60).
Is held in. When exchanging the illumination lamp (71), the illumination lamp (71) such as a fluorescent lamp or a lamp is brought into the glove box (60) through the small port (65), and a few people can hand over the glove box to the inside of the glove box. Move to the exchange. The replacement work is also performed by one or two people via the globe, and similarly, the defective lamp that has been replaced is also manually moved by the several people to the large port (66) through the globe.

Further, when it is taken out of the glove box, since the defective illumination lamp is a radioactive contaminant, it has to be enclosed in a vinyl bag and taken out.

[0006]

As described above, the replacement of the illumination lamp in the glove box requires manual labor, and the work of enclosing it in the vinyl bag is complicated, and the used fluorescent lamps and lamps are not used. Lighting such as is a contaminated waste.

It is an object of the present invention to obtain a glove box which can facilitate the replacement of an illumination lamp.

[0008]

In the glove box according to the invention described in claim 1, the inside is hermetically sealed, and a through hole provided in a wall forming the housing is closed to close the inside. In a glove box provided with a glove that is provided so as to project and an airtight window for checking the internal state when working through the glove, an airtight seal that closes the opening formed in the ceiling or wall of the housing An illumination lamp for illuminating the inside of the housing from the outside of the housing via the translucent cover is provided.

A glove box according to a second aspect of the present invention is the glove box according to the first aspect, wherein the airtight light-transmitting cover is provided so as to project inside the housing.

In the glove box according to the invention described in claim 3, in the glove box according to claim 1 or 2, the transmitted light from the illumination lamp is focused on at least a part of the airtight translucent cover. It is equipped with a lens.

The glove box according to the present invention includes a case whose inside is airtight, a glove which is provided so as to project into the inside by closing a through hole provided in a wall forming the case, and a case where work is performed through the glove. Is equipped with an airtight window for checking the inside, and refers to, for example, a radioactive substance that is handled in an airtight space in an isolated state. That is, the present invention is, for example, a glove box that handles radioactive substances inside in an isolated state,
It can be applied to glove boxes that handle substances that dislike oxygen inside in an anaerobic state, such as glove boxes that are airtight to the outside air and are handled in an isolated state.

As an illuminating lamp in such a glove box, a so-called "fluorescent lamp, incandescent lamp" or the like is used. This illuminating lamp is normally held by a lighting fixture and emits light. Therefore, the illuminating lamp and the illuminating device are arranged outside the airtight space formed by the housing, the gloves, the airtight window, and the airtight translucent cover.

The light-transmitting cover has only to be airtight so as to allow the light of the illuminating lamp to pass therethrough and close the opening formed in the ceiling or wall of the housing. For example, a flat plate-shaped light-transmitting cover that covers the opening may be used, or a light-transmitting cover that is provided so as to project inside the housing may be used.

Therefore, in the illuminating lamp and the illuminating device for holding the illuminating lamp, light may be projected to the inside from the outside of the opening formed in the ceiling or the wall portion of the housing, or the translucent cover may be provided inside the housing. When it is provided so as to protrude, it may be arranged in a region formed by this opening and the protruding translucent cover.

Further, the translucent cover not only allows the light of the illuminating lamp to pass therethrough, but also transmits at least a part of the translucent cover from the illuminating lamp so that a large amount of light can be transmitted to a desired place such as a work table. A lens for converging the transmitted light may be provided.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, there is provided an illuminator for illuminating the inside of a casing through an airtight light-transmitting cover that closes an opening formed in a ceiling or a wall of the casing. That is, the illuminating device is not directly exposed inside the housing but is kept airtight and placed outside the housing. Therefore, since the illumination lamp of the illuminator can be exchanged from outside the housing, the illumination lamp can be easily exchanged.

In particular, this is effective when working with a substance having radioactivity inside while preventing radioactive contamination and radiation exposure. That is, when a substance having radioactivity is held inside, any substance inside is contaminated by the radioactivity. Therefore, if the illumination lamp is exposed to the inside as in the past, the replaced old illumination lamp is treated as radioactive waste, so when removing it from the glove box, put it in a vinyl bag or the like. There was a need.

However, in the present invention, since the illuminating lamp is not arranged so as to be exposed in the airtight space, the replaced old illuminating lamp can be treated in the same manner as normal handling, so that the generation of contaminated waste is suppressed. can do.

The illuminating lamp is arranged outside an airtight space formed by a housing, gloves, an airtight window and an airtight translucent cover.
At this time, the translucent cover is preferably provided so as to project inside the housing. Accordingly, by disposing the illumination lamp in the area formed by the opening that is closed by the translucent cover and the protruding translucent cover, it is possible to pour light into every corner of the interior.

Further, at least a part of the airtight light-transmitting cover may be provided with a lens for focusing the transmitted light from the illumination lamp. With the lens of the translucent cover, it is possible to illuminate an arbitrary position, for example, on the workbench in the glove box with higher luminous intensity.

Further, the translucent cover and the illuminating lamp are arranged on the ceiling or the side wall of the glove box. However, when the translucent cover and the illuminating lamp are installed on the side wall, it is preferable that the translucent cover and the illuminating lamp are formed on the wall portion of the casing of the translucent cover. If the surface of the airtight light-transmitting cover that covers the opening is opposed to the ceiling and is inclined downward,
It is possible to prevent dust and the like from falling and adhering to the translucent cover in the glove box.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing the construction of an embodiment of a lighting mounting portion of a glove box according to the present invention. As shown in the figure, the opening (1
A translucent cover (15) is provided so as to cover 4). Translucent cover
(15) is composed of a protrusion (15a) fitted into the opening (14) and an edge portion (15b) following the protrusion (15a) and wider than the opening (14). A sealing material (16) is arranged at a portion in contact with the peripheral edge and the edge of the opening (14) of the translucent cover (15) to ensure airtightness inside the glove box.

The fluorescent lamp (11) is attached to a lighting fixture (12), and the lighting fixture (12) is provided with a lighting fixture holding plate via a reflecting plate (17).
Retained in (18). The side end surface of the holding plate (18) has the same size as the edge portion (15b) of the translucent cover (15), and after being arranged flush with each other, the translucent cover (15) is fixed by the set screw (19). )
Along with it, it can be firmly fixed to the ceiling wall (13) of the glove box. Also, in order to prevent the temperature inside the translucent cover from rising due to the heat generated from the lighting fixture, the slit (18a) communicating with the outside air penetrates the reflection plate (17) and the holding plate (18), and It is provided on both sides of (11).

FIG. 2 is an explanatory view showing the construction of another embodiment of the illumination mounting portion of the glove box of the present invention. An opening made in the side wall (23) of the glove box as shown.
A translucent cover (25) is arranged so as to cover (24). The translucent cover (25) has a semicircular protrusion (25a) that is fitted into the opening (24).
And an edge that is wider than the opening (24) following this protrusion (25a).
(25b) consists of A sealing material (26) is arranged at a portion in contact with the peripheral edge and the edge of the opening (24) of the translucent cover (25) to ensure the airtightness inside the glove box. Since the protrusion (25a) is semicircular and the surface facing the ceiling is inclined downward, it is possible to prevent dust and the like from falling and attaching to the translucent cover (25) in the glove box.

The fluorescent lamp (21) is attached to the lighting fixture (22), and the lighting fixture (22) has a slit (28a) communicating with the outside air provided above and below the fluorescent lamp (21). Lighting Fixture Support Plate (28)
Is held in. The side end surface of the holding plate (28) has the same size as the end edge portion (25b) of the translucent cover (25), and after being arranged flush with each other, the translucent cover (25 ) Together with the side wall (23) of the glove box.

FIG. 3 is an explanatory view showing the construction of still another embodiment of the illumination mounting portion of the glove box of the present invention. As shown in the figure, a translucent cover (35) is arranged so as to close the opening (34) formed in the side wall (33) of the glove box. The translucent cover (35) has a semi-circular protrusion (35
a) and an edge (35b) wider than the opening (34) following the protrusion (35a). A sealing material (36) is arranged at a portion in contact with the peripheral edge and the edge of the opening (34) of the translucent cover (35) to ensure airtightness inside the glove box.
Since the projecting portion (35a) has a semicircular shape and the surface facing the ceiling is inclined downward, it is possible to prevent dust and the like from falling and attaching to the translucent cover in the glove box.

The fluorescent lamp (31) is attached to the lighting device (32), and the lighting device (32) has a slit (38a) communicating with the outside air provided above and below the fluorescent lamp (31). Lighting Fixture Support Plate (38)
Is held in. The side end surface of the holding plate (38) has the same size as the edge portion (35b) of the translucent cover (35), and after being arranged flush with each other, the translucent cover (35) is fixed by the set screw (39). ) Together with the side wall (33) of the glove box. Between the illuminator holding plate (38) and the illuminator (32), a reflector (3
7) is arranged.

FIG. 4 is an explanatory view showing the construction of still another embodiment of the illumination mounting portion of the glove box of the present invention. As shown in the figure, a translucent cover (45) is arranged so as to close the opening (44) formed in the side wall (43) of the glove box. The translucent cover (45) has a protrusion (45a) fitted in the opening (44) and an edge (45b) wider than the opening (44) following the protrusion (45a).
Consists of The surface of the protruding portion (45a) facing the ceiling is inclined downward, and it is possible to prevent dust and the like from falling and adhering to the translucent cover (45) inside the glove box.

A sealing material (46) is arranged at a portion in contact with the peripheral edge and the edge of the opening (44) of the translucent cover (45) to ensure the airtightness inside the glove box. Lighting lamp
(41) is attached to the lighting equipment (42), and this lighting equipment (42)
The slit (48a) communicating with the outside air is held by the lighting fixture holding plates (48) provided above and below the lighting lamp (41). The side end surface of this holding plate (48) is the edge of the translucent cover (45).
It is the same size as (45b), and after they are arranged flush with each other, they are fastened to the side wall (43) of the glove box together with the translucent cover (45) with the set screw (49). Further, a lens (4) for converging the transmitted light from the illumination lamp (41) is provided in a portion of the translucent cover (45) facing the irradiation surface of the illumination lamp (41).
7) is equipped.

FIG. 5 is an explanatory view showing the construction of still another embodiment of the illumination mounting portion of the glove box of the present invention. As shown in the figure, a translucent cover (55) is arranged so as to close the opening (54) formed in the side wall (53) of the glove box. The translucent cover (55) has a semicircular protrusion (55
a) and an edge (55b) that is wider than the opening (54) following the protrusion (55a). The protrusion (55a) has a semicircular shape and the surface facing the ceiling is inclined downward, so that it is possible to prevent dust and the like from falling and attaching to the translucent cover in the glove box.

A sealing material (56) is arranged at a portion in contact with the peripheral edge and the edge of the opening (54) of the translucent cover (55) to ensure the airtightness inside the glove box. Lighting lamp
(51) is attached to the lighting equipment (52), and this lighting equipment (52)
A slit (58a) communicating with the outside air is held by a lighting fixture holding plate (58) provided above and below the lighting lamp (51).
The side end surface of the holding plate (58) is the edge portion (55) of the translucent cover (55).
It is the same size as b) and, after being flush with each other, is fastened to the side wall (53) of the glove box together with the translucent cover (55) with the set screw (59). Lighting equipment (52)
Has a ball joint (57) arranged so that the illumination lamp (51) can be oriented in any direction.

As described above, in any of the embodiments shown in FIGS. 1 to 5, the illumination lamp of the illuminator can be exchanged from the outside of the glove box, so that the illumination lamp can be easily exchanged. Further, in the glove box that handles the radioactive material inside, the lighting is arranged outside the glove box, so that the used lighting can be handled as non-polluted waste.

[0033]

As described above, the present invention has the effect of facilitating the replacement of the illuminating lamps because the illuminating lamps of the luminaire can be replaced from outside the housing.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of an embodiment of a lighting mounting portion of a glove box according to the present invention.

FIG. 2 is an explanatory view showing the configuration of another embodiment of the illumination mounting portion of the glove box of the present invention.

FIG. 3 is an explanatory view showing the configuration of still another embodiment of the illumination mounting portion of the glove box of the present invention.

FIG. 4 is an explanatory view showing the configuration of still another embodiment of the illumination mounting portion of the glove box of the present invention.

FIG. 5 is an explanatory view showing the configuration of still another embodiment of the illumination mounting portion of the glove box of the present invention.

FIG. 6 is an explanatory diagram showing a configuration of a glove box,
A figure is a front view and b figure is a side view.

7A and 7B are explanatory views showing a state in which an illumination lamp of a conventional glove box is installed, where FIG. 7A is a plan view and FIG. 7B is a side view.

[Explanation of symbols]

 (11) (21) (31)… Fluorescent lamp (illumination lamp), (41) (51)… Illumination lamp (illumination lamp), (12) (22) (32) (42) (52)… Lighting fixture, (13)… Ceiling wall, (23) (33) (43) (53)… Side wall, (14) (24) (34) (44) (54)… Opening, (15) (25) (35) ( 45) (55)… Translucent cover, (15a) (25a) (35a) (45a) (55a)… Projection, (15b) (25b) (35b) (45b) (55b)… End edge, ( 16) (26) (36) (46) (56)… Sealant, (17) (37)… Reflector, (47)… Lens, (57)… Ball joint, (18) (28) (38) (48) (58)… Light fixture holding plate, (18a) (28a) (38a) (48a) (58a)… Slit, (19) (29) (39) (49) (59)… Set screw

Claims (3)

[Claims] 1. A housing having an airtight interior, a glove provided so as to project into the interior by closing a through hole provided in a wall forming the housing, and a state of the interior when working through the glove. In a glove box having an airtight window to be confirmed, an illumination lamp for illuminating the inside of the housing from the outside of the housing through an airtight translucent cover that closes an opening formed in the ceiling or wall of the housing is provided. A glove box characterized by having it. 2. The glove box according to claim 1, wherein the airtight translucent cover is provided so as to project inside the housing. 3. The glove box according to claim 1, wherein at least a part of the airtight translucent cover is provided with a lens that focuses transmitted light from an illumination lamp.