JPH0933696A - Radiation protecting frame material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radiation protecting frame material which has high productivity and makes it possible to prevent the leak of radiation perfectly. SOLUTION: A frame material 1 for partitioning and forming an opening 3 for fitting in other members such as a door or a peephole installed on a wall is constituted by installing a protuberance 11 for patching and fixing the other members on the side facing the opening 3, placing a lead plate 21 from the back side of a part 13 close to the other members in the protuberance 11 toward the side of the wall and, on the back face of a hollow 12 into which the other members are fitted, extending another lead plate 22 formed almost perpendicularly to and integrally with the lead plate 21 from the approximate middle of it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame material for radiation protection, and more specifically, a door provided on a wall that separates the room using the radiation from the room such as an X-ray examination room, a radiotherapy room, a radiation measurement room. The present invention relates to a frame member that defines and forms an opening for inserting another member such as a viewing window.

[0002]

2. Description of the Related Art Conventionally, this type of frame material for radiation protection has
A lead plate is arranged on the back surface of the frame member or the like so that the radiation does not leak from the room where the radiation is used to the outside.
FIG. 3 shows an example thereof, and a radiation protection frame member 1 ′ that defines and forms an opening for inserting the door 5 provided in the wall body 4 has a door 5 on the side facing the opening. A protrusion 11 'for stopping the contact is provided in a protruding manner, and a rubber door stop 6 is provided on a portion 13' of the protrusion 11 'with which the door 5 abuts, and a lead plate 21 is provided on the rear surface thereof. ', The lead plate 22' is provided on the back surface of the recess 12 'into which the door 5 is fitted, and the lead plate 21' and the lead plate 22 'are connected to each other toward the wall 4 side. By disposing the plate 23 ', the radiation is prevented from leaking from the room IN which uses the radiation to the outdoor OUT through the portion of the frame material 1'. Further, the lead plate 41 and the lead plate 51 are also arranged on the wall body 4 and the door 5, respectively, so that radiation does not leak from between the wall body 4 and the door 5 and between the frame member 1 ′ and the wall body 4 or the door 5. I have to.

By the way, as the lead plate 21 'and the lead plate 22' arranged on the back surface of the radiation protection frame material 1 ', usually a very thin lead plate having a thickness of about 0.5 to several mm is used. However, the rigidity is not sufficient to insert the lead plates 21 'and 22' into the groove formed in the frame material 1'as is, so in consideration of workability, the back surface of the lead plates 21 'and 22' is preliminarily considered. A lead plate having plywoods 21a 'and 22a' attached thereto is used.

[0004]

As a result, the lead plate 2
Although the rigidity of the lead plates 21 'and 22' is increased, the workability when inserting the lead plates 21 'and 22' into the groove formed in the radiation protection frame member 1'can be improved, but the lead plates 21 'are , 22 '
There is a problem in that the number of steps for attaching the plywoods 21a 'and 22a' to the back surface of No. 1 increases and the productivity decreases. Further, in order to prevent radiation leakage, three lead plates 21 ', lead plates 22', and lead plates 23 'must be separately arranged on the back surface of the radiation protection frame material 1'. Also in terms of productivity, there is a problem that productivity is reduced.

An object of the present invention is to solve the problems of the conventional frame material for radiation protection, to provide a frame material for radiation protection which has high productivity and can completely prevent leakage of radiation. And

[0006]

In order to achieve the above object, the radiation protection frame material of the present invention defines an opening for inserting another member such as a door or a peep window provided in a wall body,
In the frame material to be formed, a protrusion is provided on the side facing the opening so as to stop the separate member, and the lead plate is provided from the back surface of the portion of the protrusion in contact with the separate member toward the wall body side. Another lead plate, which is formed integrally with the lead plate, is provided so as to extend from a substantially intermediate position of the lead plate substantially perpendicularly to the lead plate and integrally with the lead plate.

In this case, an extruded product can be used for the lead plate.

[0008]

[Function] A lead plate disposed from the rear surface of the portion of the radiation protection frame member, which is in contact with another member, toward the wall side, and from a substantially intermediate position of the lead plate, and substantially perpendicular to the lead plate. By forming a lead plate with another lead plate that is extended on the back surface of the recess that is integrally formed and into which another member fits, the rigidity of the lead plate is increased, and the lead plate remains in the groove formed in the frame material. Can be inserted. Further, by disposing the integrated lead plate in the frame body, it is possible to eliminate the risk of radiation leaking from the gap between the lead plates.

[0009]

EXAMPLES The frame material for radiation protection of the present invention will be described below with reference to the illustrated examples. This embodiment relates to a radiation protection frame member 1 that defines and forms an opening 3 provided in a wall body 4 for inserting a door 5.

The radiation protection frame material 1 includes a frame material body 10 and
The lead plate 2 has a substantially T shape and is inserted into the groove formed in the frame body 10, and the cover body 16 of the lead plate 2 is provided in the groove formed in the frame body 10. After the insertion, the cover body 16 is attached, and the frame body 10 and the cover body 16 are fixed by screws or the like.

The lead plate 2 includes a lead plate 21 and the lead plate 21.
And a lead plate 22 integrally formed substantially perpendicularly to the lead plate 21 from a substantially intermediate position of
It is formed in a character shape.

The frame body 10 and the cover body 16 can be manufactured by a known method such as aluminum extrusion molding, and the lead plate 2 can also be manufactured by a method such as extrusion molding or welding.

Frame body 10 of the radiation protection frame material 1
Is provided with a protrusion 11 for stopping the door 5 on the side facing the opening 3, and a rubber door stopper 6 is provided at a portion 13 of the protrusion 11 where the door 5 abuts. Along with
The lead plate 21 is arranged from the back surface thereof toward the wall body 4 side, and the door 5 is fitted with the lead plate 22 integrally formed substantially perpendicularly and integrally with the lead plate 21 from a substantially middle position of the lead plate 21. It is configured so as to extend to the back surface of the concave portion 12, whereby the radiation is prevented from leaking from the room IN that uses the radiation to the outdoor OUT through the portion of the frame member 1.

Lead plates 41 and 51 are arranged on the wall 4 and the door 5, respectively, as in the conventional case, and radiation is emitted from the wall 4 and the door 5 and between the frame member 1 and the wall 4 or the door 5. Will not leak.

The above embodiment relates to a frame member for defining and forming an opening provided in a wall for inserting a door, but the use of the radiation protection frame member of the present invention is as follows.
Not limited to this, X-ray examination room, radiation treatment room,
The present invention can be widely used as a frame material that defines and forms an opening for inserting another member such as a peep window provided in a wall body that separates an indoor space and an outdoor space that use radiation, such as a radiation measurement room.

[0016]

According to the radiation protection frame material of the present invention, a lead plate disposed from the back surface of the convex portion of the frame material with which another member abuts toward the wall body side, and substantially the middle of this lead plate. By constructing the lead plate with another lead plate that is formed substantially perpendicularly and integrally with the lead plate from the position and extends on the back surface of the recess into which another member is fitted, the rigidity of the lead plate is increased and the frame The lead plate can be inserted into the groove formed in the material as it is, so that the step of attaching the plywood to the back surface of the lead plate is not necessary and the integrated lead plate can be installed in the frame material main body. Therefore, the productivity and workability of the frame material can be improved. Further, by disposing the integrated lead plate in the frame material main body, it is possible to eliminate the risk of radiation leakage from the gap between the lead plates, and it is possible to completely prevent the radiation leakage from the frame material. . Furthermore, since plywood is not used to increase the rigidity of the lead plate, the flame retardancy of the radiation protection frame material can be improved.

By using an extruded product for the lead plate, a highly accurate lead plate can be easily obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a radiation protection frame material of the present invention.

FIG. 2 is a diagram showing a structure of an opening of a wall body using the radiation protection frame material of the present invention.

FIG. 3 is a diagram showing a structure of an opening of a wall body using a conventional radiation protection frame material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame material 11 Convex part 12 Recessed part 13 Part which another member contacts 2 Lead plate 21 Lead plate 22 Lead plate 3 Opening part 4 Wall body 5 Door (separate member)

Claims (2)

[Claims] 1. A radiation protection frame material (1) for defining and forming an opening (3) for inserting another member such as a door or a peep window provided in a wall body, the opening (3) having a surface. A protrusion (11) for abutting another member is projected on the side where
A lead plate (21) is arranged from the rear surface of the portion (13) of the convex portion (11) with which the separate member abuts toward the wall body side, and the lead plate (21) is provided from a substantially intermediate position of the lead plate (21). 21) A radiation protection frame material, characterized in that another lead plate (22) formed substantially vertically and integrally with the same is provided on the back surface of the recess (12) into which the separate member is fitted. 2. The frame material for radiation protection according to claim 1, wherein the lead plates (21, 22) are extruded products.