JP2863467B2 - Radiation protection frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, this kind of radiation protection frame material includes:
A lead plate is provided on the back surface of the frame member or the like so that the radiation does not leak from the room using the radiation to the outside.
FIG. 3 shows an example of this, in which a radiation protection frame member 1 ′ which defines and forms an opening for fitting a door 5 provided on a wall 4 is provided on the side facing the opening. A protrusion 11 ′ is provided to hold the door 5, and a rubber door stop 6 is provided at a portion 13 ′ of the protrusion 11 ′ where the door 5 contacts, and a lead plate 21 is provided on the back surface thereof. And a lead plate 22 ′ is provided on the back surface of the concave portion 12 ′ into which the door 5 fits, and furthermore, lead from the boundary between the lead plate 21 ′ and the lead plate 22 ′ toward the wall 4 side. By disposing the plate 23 ', radiation is prevented from leaking from the room IN using the radiation to the outdoor OUT through the frame material 1'. Lead plates 41 and 51 are also provided on the wall 4 and the door 5, respectively, so that radiation does not leak from between the wall 4 and the door 5 and between the frame 1 'and the wall 4 or the door 5. I have to.

Incidentally, a very thin lead plate having a thickness of about 0.5 to several mm is usually used for the lead plate 21 'and the lead plate 22' disposed on the back surface of the radiation protection frame 1 '. However, since the rigidity is insufficient to insert the lead plates 21 'and 22' directly into the grooves formed in the frame member 1 ', the back surfaces of the lead plates 21' and 22 'are previously determined in consideration of workability. A lead plate having plywoods 21a 'and 22a' attached thereto is used.

[0004]

Accordingly, the lead plate 2
Although the rigidity of the lead plates 1 'and 22' is increased, workability such as when the lead plates 21 'and 22' are inserted into the grooves formed in the radiation protection frame 1 'can be improved. , 22 '
There is a problem that the number of steps for attaching the plywood 21a 'and 22a' to the back surface increases, and the productivity decreases. In addition, in order to prevent radiation from leaking, three lead plates 21 ', 22' and 23 'must be separately provided on the back surface of the radiation protection frame 1'. Also, there is a problem that productivity is reduced.

An object of the present invention is to solve the above-mentioned problems of the conventional radiation protection frame material and to provide a radiation protection frame material having high productivity and capable of completely preventing radiation leakage. And

[0006]

In order to achieve the above-mentioned object, a radiation protection frame material according to the present invention is provided with a partition provided with an opening for inserting another member such as a door or a viewing window provided on a wall.
In the frame material to be formed, a protruding portion for projecting and holding another member on the side facing the opening portion is protruded, and a lead plate is directed toward the wall from the back surface of the portion of the protruding portion where the another member contacts. In addition to the above arrangement, another lead plate formed substantially perpendicularly and integrally with the lead plate from a substantially middle position of the lead plate is extended to the back surface of the concave portion in which the separate member is fitted.

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

[0008]

According to the present invention, there is provided a lead plate disposed from the back surface of a portion of the radiation protection frame material to which another member of the projection abuts toward the wall, and a substantially middle position between the lead plate and substantially perpendicular to the lead plate. By forming a lead plate with another lead plate that is integrally formed and extends on the back surface of the concave portion 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 as it is Can be inserted. In addition, by disposing the integrated lead plate in the frame material main body, it is possible to eliminate the risk of radiation leaking from the gap between the lead plates.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a radiation protection frame according to the present invention. The present embodiment relates to a radiation protection frame 1 that defines and forms an opening 3 provided in a wall 4 for fitting a door 5.

[0010] The radiation protection frame material 1 comprises a frame material body 10,
A lead plate 2 having a substantially T-shape inserted into a groove formed in the frame material body 10 and a cover body 16 of the lead plate 2, and the lead plate 2 is inserted into the groove formed in the frame material body 10. After the insertion, the cover body 16 is attached, and the frame material main body 10 and the cover body 16 are fixed with screws or the like.

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

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

The frame member body 10 of the radiation protection frame member 1
Is provided with a projection 11 for holding the door 5 on the side facing the opening 3, and a rubber door stop 6 is provided at a portion 13 of the projection 11 where the door 5 contacts. Along with
A lead plate 21 is disposed from the back surface toward the wall 4 side, and the door 5 is fitted with a lead plate 22 formed substantially vertically and integrally with the lead plate 21 from a substantially middle position of the lead plate 21. It is configured to extend on the back surface of the concave portion 12, thereby preventing radiation from leaking from the room IN using the radiation to the outdoor OUT through the portion of the frame material 1.

As in the prior art, lead plates 41 and 51 are provided on the wall 4 and the door 5, respectively, so that radiation from the wall 4 and the door 5 and between the frame 1 and the wall 4 or the door 5 can be obtained. To prevent leakage.

The above embodiment relates to a frame member for partitioning and forming an opening provided in a wall for fitting 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 for a frame material that defines and forms an opening for fitting another member such as a viewing window provided on a wall that separates a room using radiation, such as a radiation measurement room, from the outside of the room.

[0016]

According to the radiation protection frame material of the present invention, a lead plate disposed from the back surface of the projecting portion of the frame material with which another member abuts toward the wall side, and a substantially intermediate portion of the lead plate The lead plate is formed substantially perpendicularly and integrally with the lead plate from the position, and the lead plate is constituted by another lead plate extending on the back surface of the concave portion into which another member is fitted, thereby increasing the rigidity of the lead plate, The lead plate can be directly inserted into the groove formed in the material, which eliminates the need for a step of attaching plywood to the back surface of the lead plate, and allows the integrated lead plate to be disposed in the frame material body. Since it is sufficient, productivity and workability of the frame material can be improved. In addition, by disposing the integrated lead plate in the frame material main body, it is possible to eliminate the risk of radiation leaking from the gap between the lead plates, and to completely prevent the leakage of radiation from the frame material. . Furthermore, since no plywood is used to increase the rigidity of the lead plate, the flame resistance of the radiation protection frame material can be improved.

Further, by using an extruded product as a lead plate, a highly accurate lead plate can be easily obtained.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a radiation protection frame material of the present invention.

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

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

[Explanation of symbols]

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

Claims (2)

(57) [Claims] 1. A radiation protection frame (1) which defines and forms an opening (3) for fitting another member such as a door or a viewing window provided on a wall body, and which faces the opening (3). A projection (11) for holding another member on the side to be projected is provided,
A lead plate (21) is arranged from the back surface of the portion (13) of the projection (11) with which the different member abuts toward the wall, and the lead plate (21) is positioned substantially in the middle of the lead plate (21). 21. A radiation protection frame member, characterized in that another lead plate (22) formed substantially perpendicularly and integrally with the other member (21) extends on the back surface of the concave portion (12) into which the separate member is fitted. 2. The radiation protection frame material according to claim 1, wherein said lead plates (21, 22) are formed by extrusion molding.