JP2000187094A - Screen for protecting against radiation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a screen that changes an installation angle freely and, what is more, can securely prevent radiation from leaking from joints. SOLUTION: A screen for protecting against radiation includes screens 1 and 2 that are connected with each other in the position of a joint 7 so that the screens 1 and 2 can revolve and protection covers 3 and 4 that are mounted on the screens 1 and 2 to shield the joint 7. The protection covers 3 and 4 are also mounted with the sides of the tips of the covers 3 and 4 overlapping with the side end parts of the screens 1 and 2 so as to shield the joint 7 over the whole revolution range. Moreover, support leg members 6 on the side of the revolution center of the screens 1 and 2 which are connected with each other so that they can revolve are mounted in staggered positions where the members 6 do not interfere with each other when they revolve.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiological protection screen used for reducing the radiation exposure of medical staff, nurses, and caregivers in radiation diagnostic facilities and the like.

[0002]

2. Description of the Related Art As this kind of screen for radiation protection, there is provided a movable type in which lead glass having high transparency and a radiation shielding function is incorporated in a metal frame equipped with casters.

[0003]

Such radiation protection screens may need to be installed in combination depending on the installation location.

Conventionally, when a plurality of screens are installed in a linear combination, a lead joint plate can be attached and fixed between the screens as a shielding means for preventing leakage of radiation from a joint between the screens. However, in such a case, it is not possible to freely change the installation angle of the screen, and furthermore, a screen shielding means of the screen when the screen is installed in a combination other than a straight line is provided. In such a case, conventionally, there has been no other method but to partially overlap the side ends of the screen with each other.

[0005] However, when the side ends of the partitions are partially overlapped in this manner, the lower portions of both ends of the metal frame of the partitions are stably supported so as not to fall down. The supporting leg member is mounted so as to protrude at right angles to the partition surface, and this support leg member interferes between adjacent partitions. In order to avoid this interference, there is a problem that a large gap is generated between adjacent partitions. In order to prevent leakage of radiation from this gap, a joint plate having a shape corresponding to the size of the gap and the bending angle between the partitions must be used, but such a joint plate has not been provided conventionally. .

Accordingly, an object of the present invention is to provide a radiation protection screen capable of freely changing the installation angle and reliably preventing radiation from leaking from a joint. is there.

[0007]

In order to achieve the above object, a radiation protection screen according to the present invention is provided with a plurality of screens pivotally connected at a seam position and mounted on the screen to shield the seam. And a protective cover.

According to the present invention, since the above structure is adopted, the partition can be installed by freely changing the installation angle in accordance with the installation location and the like, and furthermore, radiation leakage from the joint between the partitions is provided by the protective cover. Can be reliably prevented.

Further, in the radiation protection screen according to the present invention, the protection cover covers the joints over the entire swiveling range of the plurality of screens, and is attached to the side ends of the screens on both sides by overlapping the front ends thereof. There is a feature. This makes it possible to reliably prevent radiation from leaking from a seam between the partitions, regardless of the angles of the partitions.

Further, the radiation protection screen of the present invention is characterized in that the support leg members of the plurality of pivotally connected screens on the turning center side are shifted so as not to interfere with each other when turning. And Accordingly, when the setting angle of the partition is set to an arbitrary angle, the support leg members of the partitions on both sides are not restricted in movement, and the partitions on both sides can be stably supported at the set angle. it can.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a radiation protection partition according to the present invention will be described with reference to the drawings.

FIG. 1A is a schematic plan view of a screen for radiation protection according to the present invention, and FIGS. 1B and 1C are a state in which a plurality of screens are installed in a straight line and a state in which the screens are bent at right angles. 2A and 2B are enlarged plan views of the connecting portion in FIG.
1 shows a schematic front view and a schematic side view of a screen for radiation protection according to the present invention.

In FIGS. 1A, 1B, and 1C,
1 and 2 are partitions, 3 and 4 are protective covers, 5 is a hinge, and 6 is a support leg member.

As shown in FIG. 2A, the partitions 1 and 2 are made of lead glass 1 having a high transparency and a radiation shielding function.
a, 2a are made of metal (for example, aluminum alloy, stainless steel,
Others) frames 1b, 2b are incorporated in the upper part, and lower parts are integrated with decorative boards 1c, 2c which are integrated by bonding a lead plate. The partitions 1 and 2 may have other configurations.

The partitions 1, 2 are shown in FIG.
As shown in FIGS. 2B and 2C and FIG. 2A, hinges 5 are arranged at a plurality of locations above and below the joint 7.
, So as to be pivotable over a predetermined angle range (for example, 90 ° to 180 °).

As shown in FIGS. 1A, 2A and 2B, a support leg member 6 with casters 8 is formed at right angles to the partition surface, as shown in FIGS. The supporting leg members 6, 6 attached to the side ends of the partitions 1, 2 on the side of the center of rotation are projected as shown in FIGS. 1 (A) and 2 (A). When the partitions 1 and 2 are turned, they are shifted so as not to interfere with each other. In addition, as shown in FIG.
Are mounted on the lower surfaces of the protruding ends on both sides of each of them, and each is configured to be directed in a free movement direction, and
On at least one caster 8 of each support leg member 6,
A stopper 8a is attached.

The protective covers 3, 4 are shown in FIG.
As shown in (B) and (C), the joint 7 between the partitions 1 and 2
In order to shield the screens 1, 2 at one end, that is, on the side of the mounting base 3a, 4a, on both sides of the turning center of the partitions 1, that is, on both outer sides of the joint 7, over the entire length of the partitions 1, 2 in the height direction. It is attached to the end. The protective covers 3 and 4 are
2 is formed in a concentric arc shape from the center of rotation in order to shield the joint 7 over the entire turning range of 2 and the free end sides 3b, 4b
Is polymerized. In this overlapping section, partitions 1, 2
A slight gap G is provided in order to make the turning operation smoothly.

As shown in FIGS. 1B and 1C, stoppers 9a and 9b for regulating the shielding range of the joint 7 by the protective covers 3 and 4 are provided on the joint 7 side of one of the partitions 1 as shown in FIGS. It is attached to the end.

The protective covers 3 and 4 are made of a material having a radiation shielding function. For example, the protective covers 3 and 4 are made of a plate material in which a lead plate is interposed between metal plates such as stainless steel.

The radiation protection screen according to the present invention has the above-described configuration. Next, an example of its use will be described. FIG. 1B shows a case where adjacent partitions 1, 2 pivotally connected by hinges 5 at the position of the seam 7 are installed by being extended by 180 °, that is, in a straight line. C)
In this example, the adjacent partitions 1 and 2 are set at 90 °, that is, bent at a right angle. The screen for radiation protection according to the present invention can be set and installed at an arbitrary angle between these. In either case, the adjacent partition 1,
Since the joint 7 between the two is completely shielded by the protective covers 3 and 4, it is possible to reliably prevent radiation from leaking. The protective covers 3 and 4 are installed so as to protrude slightly outside the seam 7, but occupy a small space. The radiation protection screen of the present invention may be configured by connecting two or more sheets, for example, three, four,.

[0021]

According to the present invention, according to the installation location and the like,
The screen can be installed by freely changing the installation angle,
In addition, the protective cover can reliably prevent radiation from leaking from the joint.

Further, according to the present invention, since the protective cover is mounted on the side ends of the two partitions so as to overlap the front end thereof so as to shield the joint over the entire turning range of the plurality of partitions, Irrespective of the angles at which the partitions are set, leakage of radiation from the joint between the partitions can be reliably prevented.

Further, according to the present invention, since the support leg members on the turning center side of the plurality of pivotally connected partitions are mounted so as to be displaced so as not to interfere with each other during the rotation, the partitions are installed. When the angle is set to an arbitrary angle, the support leg members of the partitions on both sides are not restricted in movement, and the partitions on both sides can be stably supported at the set angle.

[Brief description of the drawings]

1 (A) is a schematic plan view of a radiation protection screen according to the present invention, and FIGS. 1 (B) and 1 (C) show a state in which a plurality of screens are installed in a straight line and in a state where they are installed at right angles. The enlarged plan view of a part.

FIGS. 2A and 2B are a schematic front view and a schematic side view of a screen for radiation protection according to the present invention.

[Explanation of symbols]

 1, 2 partition 3, 4 Protective cover 5 Hinge 6 Support leg member 7 Seam 8 Caster

Claims (3)

[Claims] 1. A radiation protection screen, comprising: a plurality of screens pivotally connected at a seam position; and a protective cover attached to the screen to shield the seam. 2. The screen according to claim 1, wherein the protective cover is attached to the side ends of the two partitions so as to overlap the front end thereof so as to shield the seam over the entire turning range of the plurality of partitions. Radiation protection screen. 3. The method according to claim 1, wherein each of the plurality of pivotally connected screen supporting leg members on the pivot center side is displaced so as not to interfere with each other when pivoting. Screen for radiation protection.