JP6321838B1 - Radiation dose visual protection mask - Google Patents
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- JP6321838B1 JP6321838B1 JP2017010522A JP2017010522A JP6321838B1 JP 6321838 B1 JP6321838 B1 JP 6321838B1 JP 2017010522 A JP2017010522 A JP 2017010522A JP 2017010522 A JP2017010522 A JP 2017010522A JP 6321838 B1 JP6321838 B1 JP 6321838B1
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- 230000005855 radiation Effects 0.000 title claims abstract description 89
- 230000000007 visual effect Effects 0.000 title abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 53
- 230000004397 blinking Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 5
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 abstract description 10
- 239000012857 radioactive material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000012800 visualization Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000013079 data visualisation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
【課題】防護マスクの内側にすべての装置又は手段を取り付けることにより装着が容易であるとともに前記装置又は手段は放射線環境下における放射性物質に汚染されないため管理が容易であり、かつ、当該防護マスクを使用する作業者に合わせて表示位置を調整できる放射線量視認用防護マスクを提供する。【解決手段】放射線測定器２と、当該放射線測定器２で測定する放射線量に応じて表示箇所又は表示色彩を変化させる制御手段と、当該制御手段を介して放射線量の高低を表示する表示手段４と、前記放射線測定器２、制御手段及び表示手段４に電源を供給する電源部５とを当該防護マスク１の内側に取付け、前記表示手段４は作業者の視覚の隅に入る位置の前記防護マスク１の前面防風窓３の内側の左側縁、右側縁、上縁又は下縁のいずれかに設けた。【選択図】図１The present invention is easy to mount by attaching all devices or means inside a protective mask, and is easy to manage because the device or means is not contaminated by radioactive materials in a radiation environment. Provided is a radiation dose visual protection mask capable of adjusting a display position according to a worker to be used. A radiation measuring instrument, control means for changing a display location or display color according to the radiation dose measured by the radiation measuring instrument, and display means for displaying the level of the radiation dose via the control means. 4 and a power source 5 for supplying power to the radiation measuring instrument 2, the control means and the display means 4 are attached to the inside of the protective mask 1, and the display means 4 is located at a position where it enters the visual corner of the operator. The protective mask 1 is provided on any one of the left side edge, right side edge, upper edge, and lower edge inside the front windshield window 3. [Selection] Figure 1
Description
この発明は、放射線環境下における作業や調査の際作業空間の放射線量の度合いを作業者が視認できる防護マスクに関するものである。 The present invention relates to a protective mask that allows an operator to visually recognize the degree of radiation dose in a work space during work or investigation in a radiation environment.
現在、原子力発電所をはじめ原子力施設や放射性物質取り扱い施設、放射性廃棄物取り扱い施設等における粉じんの恐れのある放射線管理区域への入域には必ず作業着の上にタイベックススーツを着て、防護メガネ、或いは防護マスク（半面マスク、全面マスク、エアラインマスク等、以下これらを防護マスクと言う）を装着し、内部被ばく防止のために粉じんの吸入を防ぐ対策をとっている。 Currently, when entering a radiation control area where there is a risk of dust in nuclear power plants, nuclear facilities, radioactive material handling facilities, radioactive waste handling facilities, etc., always wear tiebex suits on top of work clothes to protect them. Wearing glasses or a protective mask ( half-face mask, full- face mask, airline mask, etc., hereinafter referred to as protective mask) and taking measures to prevent inhalation of dust to prevent internal exposure.
また、上記の防護対策に加え、放射線環境下における作業時における法定被ばく線量を把握するため、携帯型放射線検出器（半導体検出器、一般にポケット線量計等と呼ばれる）を作業着の内側に装着し、さらに、作業対象区域の諸作業の目的に応じて、作業空間放射線量を計測する可搬型放射線検知器（γ線用シンチレーションサーベイメータ、電離箱式サーベイメータ等）などの空間線量計を持参して放射線管理区域へ入域している。 In addition to the protective measures described above, a portable radiation detector (semiconductor detector, commonly referred to as a pocket dosimeter) is attached to the inside of work clothes in order to grasp the legal exposure dose during work in a radiation environment. Furthermore, bring radiation dosimeters such as portable radiation detectors (such as γ-ray scintillation survey meters and ionization chamber survey meters) that measure radiation dose in the work space according to the purpose of the work in the work area. Entering the management area.
個人被ばく線量は上記携帯型放射線検出器或いは可搬式放射線検出器で確認可能であるが、作業員全員が可搬式放射線検出器を持参するわけではないため、作業中を含め、常時継続して確認することは困難である。また、携帯型放射線検出器を作業着の内側に装着しているが、作業中は汚染の恐れを考慮し、その線量計を作業着の内側から取り出して数値を確認することができない。 Personal exposure dose can be confirmed with the above portable radiation detector or portable radiation detector, but not all workers bring portable radiation detectors. It is difficult to do. Moreover, although the portable radiation detector is mounted on the inside of the work clothes, it is impossible to check the numerical value by taking out the dosimeter from the inside of the work clothes in consideration of the risk of contamination during the work.
それ故、作業員は作業終了後に作業着の内側に装着した携帯型放射線検出器の積算値を把握せざるを得ない。 Therefore, the worker must grasp the integrated value of the portable radiation detector attached to the inside of the work clothes after the work is completed.
そこで、特許文献１に示すものが開発された。これは原子力発電所の作業区域内で作業に従事する放射線作業従事者の個人被ばく線量データを経過時間とともに可視化することができる個人被ばく線量データ可視化システムである。 Then, what was shown to patent document 1 was developed. This is a personal exposure dose data visualization system that can visualize the individual exposure dose data of radiation workers engaged in work within the work area of a nuclear power plant with the elapsed time.
具体的には、放射線作業従事者に装着させるヘッドマウントディスプレイと、作業従事者に装着させて作業従事者の個人被ばく線量データを測定する放射線測定装置とを含むとともに、放射線測定装置によって測定された個人被ばく線量データに経過時間を加えた可視化情報を生成する可視化情報生成手段と、生成した可視化情報をヘッドマウントディスプレイにリアルタイムに表示する可視化情報表示手段とを有するものであり、前記ヘッドマウントディスプレイを作業従事者の防護マスクの外側の、作業従事者の視界の邪魔にならない箇所に取り付け、作業者が防護マスクの内側から視認するものである。 Specifically, it includes a head-mounted display worn by a radiation worker and a radiation measurement device that is worn by the worker and measures personal exposure dose data of the worker, and was measured by the radiation measurement device. Visualization information generating means for generating visualization information obtained by adding elapsed time to personal exposure dose data, and visualization information display means for displaying the generated visualization information on a head mounted display in real time, the head mounted display It is attached to the outside of the worker's protective mask so as not to obstruct the worker's field of view, and the worker visually recognizes from the inside of the protective mask.
しかしながら、上記特許文献１の構成では、防護マスクの外側にヘッドマウントディスプレイを取付けるため、ヘッドマウントディスプレイは放射線環境下では汚染されてしまう恐れがあり、当該ヘッドマウントディスプレイを繰り返し使用するには、作業後ヘッドマウントディスプレイの除染作業をしなければならない。また、上記特許文献１では、放射線測定装置は作業従事者の作業着の内側に装着し、この測定結果を可視化情報生成手段に送ってヘッドマウントディスプレイに表示させるので、各装置や手段を別々に作業従事者に装着するため、前記個人被ばく線量データ可視化システムを作業従事者が準備、装着するために手間がかかる。 However, in the configuration of Patent Document 1, since the head mounted display is attached to the outside of the protective mask, the head mounted display may be contaminated in a radiation environment. The head-mounted display must be decontaminated. In Patent Document 1, the radiation measurement apparatus is mounted inside the work clothes of the worker, and the measurement result is sent to the visualization information generation means and displayed on the head mounted display. In order to attach to the worker, it takes time and effort for the worker to prepare and wear the personal exposure dose data visualization system.
そこで、この発明は上述の課題を解決するため、防護マスクの内側にすべての装置又は手段を取り付けることにより装着が容易であるとともに前記装置又は手段は放射線環境下において放射性物質に汚染されないため管理が容易であり、かつ、当該防護マスクを使用する作業者に合わせて表示位置を調整できる放射線量視認用防護マスクを提供することを目的としたものである。 Therefore, in order to solve the above-described problems, the present invention is easy to mount by attaching all the devices or means inside the protective mask, and the device or means is not contaminated by radioactive substances in the radiation environment, and therefore can be managed. An object of the present invention is to provide a radiation dose visual protection mask that is easy and can adjust the display position according to the operator who uses the protective mask.
請求項１の発明は、放射線環境下で作業する作業者が被る防護マスクにおいて、放射線測定器と、当該放射線測定器で測定する放射線量に応じて表示箇所又は表示色彩を変化させる制御手段と、当該制御手段を介して放射線量の高低を表示する表示手段と、前記放射線測定器、制御手段及び表示手段に電源を供給する電源手段とを当該防護マスクの内側に取付け、前記表示手段は作業者の視覚の隅に入る位置の前記防護マスクの防風窓の内側の左側縁、右側縁、上縁又は下縁のいずれかに設けた、放射線量視認用防護マスクとした。 The invention of claim 1 is a protective mask worn by an operator working in a radiation environment, a radiation measuring instrument, and a control means for changing a display location or a display color according to a radiation dose measured by the radiation measuring instrument, A display means for displaying the radiation level via the control means and a power supply means for supplying power to the radiation measuring instrument, the control means and the display means are mounted inside the protective mask, and the display means is an operator. The radiation mask was provided at one of the left side edge, right side edge, upper edge, or lower edge inside the windshield window of the protective mask at a position entering the visual corner.
また、請求項２の発明は、前記表示手段は、予め防護マスクの防風窓の内側の隅に貼り付けられ、面ファスナーを表面に有す台紙と、可撓性がある扁平な表示手段本体とから成り、前記表示手段本体の裏面には前記台紙の面ファスナーに着脱自在な面ファスナーを有し、前記台紙は表示手段本体よりやや大きい面積を有する、請求項１に記載の放射線量視認用防護マスクとした。 Further, the invention of claim 2 is characterized in that the display means is affixed in advance to the inside corner of the windshield window of the protective mask, a mount having a hook-and-loop fastener on the surface, a flexible flat display means main body, The radiation dose visual protection according to claim 1, comprising a hook-and-loop fastener that is detachable from the hook-and-loop fastener of the mount on the back surface of the display means body, and the mount has a slightly larger area than the display means body. A mask was used.
また、請求項３の発明は、前記表示手段は、複数の表示素子が並べられ、当該表示素子は測定された放射線量の大きさに応じて複数の区分に分けられ、測定された放射線量によっていずれか一つの区分の表示素子が点灯又は点滅する構成である、請求項１又は２に記載の放射線量視認用防護マスクとした。 According to a third aspect of the present invention, the display means includes a plurality of display elements arranged, the display elements being divided into a plurality of sections according to the magnitude of the measured radiation dose, and depending on the measured radiation dose. The radiation dose visual protection mask according to claim 1 or 2, wherein the display element of any one of the sections is turned on or blinks.
また、請求項４の発明は、前記表示手段は、多数の表示素子が並べられ、測定された放射線量の大きさに応じて色彩の異なった表示素子が点灯又は点滅する構成である、請求項１又は２に記載の放射線量視認用防護マスクとした。 According to a fourth aspect of the present invention, the display means has a configuration in which a large number of display elements are arranged, and display elements having different colors are turned on or blinking according to the measured radiation dose. The protective mask for visualizing radiation dose described in 1 or 2 was used.
請求項１の発明によれば、当該発明の防護マスクを作業者が被って放射線環境下で作業する際に、放射線量が低い場合は、防護マスクの防風窓の内側の表示器の所定箇所又は所定の色彩で表示され、危険な状況でないことを作業者が視認できる。また、放射線量が高くなった場合、表示器の他の所定箇所又は他の色彩が表示されるので、作業者は危険を自ら認識できる。 According to the invention of claim 1, when an operator wears the protective mask of the invention and works in a radiation environment, when the radiation dose is low, a predetermined position of the indicator inside the windshield window of the protective mask or It is displayed in a predetermined color, and an operator can visually recognize that it is not a dangerous situation. In addition, when the radiation dose becomes high, other predetermined portions or other colors of the display are displayed, so that the worker can recognize the danger himself.
しかも、表示手段は、作業者の視覚の隅に入る位置の前記防護マスクの防風窓の左側縁、右側縁、上縁又は下縁のいずれかに設けているため、本来の作業の邪魔にならず、かつ、作業者の視界に入り、確実に表示を視認できる。 Moreover, since the display means is provided on any one of the left side edge, the right side edge, the upper edge, and the lower edge of the windshield window of the protective mask at a position that enters the corner of the operator's vision, it does not interfere with the original work. In addition, it is possible to enter the field of view of the worker and to visually confirm the display.
また、この発明の防護マスクには、放射線測定器、制御手段、表示手段等がすべて装着されているので、作業者は当該防護マスクを被るだけで放射線量を測定し、かつ放射線量の高低の度合いを視認でき、作業中の身の安全を自ら守ることができる。さらに、上記放射線測定器、制御手段、表示手段等はすべて防護マスクの内側に設けられているため、放射線環境下において放射性物質に汚染の恐れがないため、管理がし易い。 In addition, since the radiation mask, control means, display means, etc. are all attached to the protective mask of the present invention, the operator measures the radiation dose only by wearing the protective mask, and the radiation dose is low or high. You can see the degree, and you can keep yourself safe while working. Further, since the radiation measuring instrument, the control means, the display means, etc. are all provided inside the protective mask, there is no risk of contamination of the radioactive material in the radiation environment, so that the management is easy.
また、請求項２の発明によれば、表示手段は防護マスクの防風窓の内側の隅に貼り付けられた台紙と当該台紙に貼り付ける表示手段本体から成り、台紙の方が面積を大きくしているので、表示手段本体の位置を調整できる。従って、当該防護マスクを被る作業者の顔又は頭の大きさに応じて、作業の邪魔にならないように、かつ、作業者の視界に入るように表示手段本体を台紙に貼り付けることができる。 According to a second aspect of the present invention, the display means comprises a mount attached to the inner corner of the windshield window of the protective mask and a display means main body attached to the mount. The mount has a larger area. Therefore, the position of the display means body can be adjusted. Therefore, according to the size of the face or head of the worker who wears the protective mask, the display means main body can be attached to the mount so as not to obstruct the work and enter the worker's field of view.
また、請求項３の発明によれば、放射線量の大きさに応じて表示素子の点灯又は点滅位置が異なるため、作業者は容易に放射線量の大きさの度合いが分かる。
また、請求項４の発明によれば、放射線量の大きさによって異なる色彩の表示素子が点灯又は点滅するため、作業者は容易に放射線量の大きさの度合いが分かる。
According to the invention of claim 3, since the lighting or blinking position of the display element varies depending on the radiation dose, the operator can easily know the degree of the radiation dose.
According to the invention of claim 4, since the display elements having different colors are turned on or blinking depending on the radiation dose, the operator can easily know the magnitude of the radiation dose.
（実施の形態例１）
まず、この発明の実施の形態例１の防護マスクの構成について、図に基づいて説明する。
(Embodiment 1)
First, the structure of the protective mask of Example 1 of this invention is demonstrated based on figures.
図１及び図２において示すように、被着者の顔部全面を被う全面防護マスク１において、いわゆるポケット線量計として用いられている放射線測定器２が前面暴風窓３の上方の内側の、被着者の額に対向する位置に設けられている。当該放射線測定器２は全面防護マスク１の内側に着脱自在に設けられている。 As shown in FIGS. 1 and 2, in the full-face protective mask 1 covering the entire face of the adherend, the radiation measuring instrument 2 used as a so-called pocket dosimeter is located on the inner side above the front storm window 3. It is provided at a position facing the forehead of the wearer. The radiation measuring instrument 2 is detachably provided inside the entire protective mask 1.
また、前記前面暴風窓３の内側の、上下及び左右の四側縁に沿って、放射線の線量レベルに応じて表示素子が点灯又は点滅する細長の表示手段４が貼り付けられている。当該表示手段４は作業者の本来の作業に対する視界を妨げてはならず、それ故、視界の隅に表示している。また、電池等から成る電源部５が、全面防護マスク１の内側であって前記放射線測定器１の脇に設けられている。 Further, along the upper and lower and left and right side edges inside the front storm window 3, an elongated display means 4 in which a display element is lit or blinks according to the radiation dose level is attached. The display means 4 must not disturb the field of view of the operator's original work, and is therefore displayed at the corner of the field of view. A power supply unit 5 made of a battery or the like is provided inside the entire protective mask 1 and beside the radiation measuring instrument 1.
なお、前記全面防護マスク１は、労働安全衛生法第４２条の規定に基づく「防じんマスクの規格」に基づいたもの、或いは同等の性能を有するもので、現在広く放射線環境下で実用化されているものを基本とする。また、上記構成は、例えば図３に示す防護メガネ１ａにおいても同様の構成を採ることができる。 The full-face protective mask 1 is based on the “standard of dust mask” based on the provisions of Article 42 of the Industrial Safety and Health Law or has equivalent performance, and is currently widely used in a radiation environment. Based on what you have. Moreover, the said structure can take the same structure also in the protective glasses 1a shown, for example in FIG.
また、前記放射線測定器２は、図４のブロック構成図及び図５の概略回路図で示す構成である。 The radiation measuring instrument 2 has the configuration shown in the block configuration diagram of FIG. 4 and the schematic circuit diagram of FIG. 5.
γ線、Ｘ線等の光子線の放射線６が放射線測定器２に入射すると、バイアス
電圧が印加されているＰＮ接合型シリコンから成る放射線検出部７内で電離作用が起こり、電流が発生する。その電流が増幅部８にて電流−電圧変換され、かつ増幅される。
When radiation 6 of photon rays such as γ-rays and X-rays is incident on the radiation measuring instrument 2, an ionization action occurs in the radiation detection unit 7 made of PN junction type silicon to which a bias voltage is applied, and a current is generated. The current is converted from current to voltage by the amplifier 8 and amplified.
このアナログ信号は変換部９に送られ、しきい値決定回路１０によりノイズ成分のカットあるいはエネルギー依存性の調整のための所定のしきい値が設定されて、ノイズ成分をカットし、エネルギー依存性の調整がなされてデジタル変換される。 This analog signal is sent to the conversion unit 9, and a threshold value determination circuit 10 sets a predetermined threshold value for cutting noise components or adjusting energy dependency, thereby cutting the noise components, and energy dependency. Are adjusted and converted to digital.
そして、この信号はＣＰＵ１１に送られ信号カウントが線量に換算され、表示部１２に送られる。これが通常のいわゆるポケット線量計の構成であるが、この発明の放射線防護マスクでは前記ＣＰＵ１１から全面防護マスク１の前面防風窓３に設けた前記表示手段４の各表示素子１３に信号が送られる。 Then, this signal is sent to the CPU 11, the signal count is converted into a dose, and sent to the display unit 12. This is a configuration of a normal so-called pocket dosimeter. In the radiation protection mask of the present invention, a signal is sent from the CPU 11 to each display element 13 of the display means 4 provided on the front windshield window 3 of the full-face protection mask 1.
これは、図６に示すように、前記ＣＰＵ１１で、前述のように、前記信号カウントが放射線量に変換されるが、当該ＣＰＵ１１では予め放射線量の大きさに応じて３個のテーブル、安全区域テーブル２２、注意区域テーブル２３、危険区域テーブル２４が用意されており、前記変換された放射線量に応じて前記各テーブル２２，２３，２４の一つに信号が入る。そして、信号が入力されたテーブル２２、２３又は２４のいずれかの出力信号が前記表示手段４の、後述する３区分に分けられた表示素子１３に出力される。 As shown in FIG. 6, the CPU 11 converts the signal count into a radiation dose as described above. In the CPU 11, three tables and safety zones are previously set according to the magnitude of the radiation dose. A table 22, a caution area table 23, and a danger area table 24 are prepared, and a signal is input to one of the tables 22, 23, 24 according to the converted radiation dose. Then, the output signal of any one of the tables 22, 23 or 24 to which the signal is input is output to the display element 13 of the display means 4 divided into three sections to be described later.
前記表示手段４は、具体的には、ＬＥＤから成る表示素子１３又は液晶から成る表示素子１３ａで構成される。ＬＥＤから成る表示素子１３の場合、図７に示す様に、多数の表示素子１３を一列に並べ、こちらの表示素子１３を空間線量が比較的低い安全区域表示１４、空間線量が中程度の注意区域表示１５、空間線量が高い危険区域表示１６の３つに分け、夫々緑色、黄色、赤色を発光するように構成している。 Specifically, the display means 4 includes a display element 13 made of LED or a display element 13a made of liquid crystal. In the case of the display element 13 made of LED, as shown in FIG. 7, a large number of display elements 13 are arranged in a line, and the display element 13 is arranged in a safe area display 14 having a relatively low air dose, and the air dose is moderate. The area display 15 and the dangerous area display 16 having a high air dose are divided into three, and are configured to emit green, yellow, and red, respectively.
そして、前記危険区域表示１６のうちの一定の規定値の空間線量レベル以上となった場合には、赤色のＬＥＤを点滅すると同時にアラーム音を鳴らし、注意をより強く喚起させるようになっている。これらの前記安全区域表示１４、注意区域表示１５及び危険区域表示１６は前記ＣＰＵ１１に用意された安全区域テーブル２２、注意区域テーブル２３、危険区域テーブル２４にそれぞれ対応し、点滅又は点灯する。 When the air dose level of a certain prescribed value in the danger area display 16 is exceeded, the red LED blinks and at the same time, an alarm sound is generated to raise the attention more strongly. The safety area display 14, the caution area display 15 and the danger area display 16 correspond to the safety area table 22, the caution area table 23, and the danger area table 24 prepared in the CPU 11, and blink or light up.
また、液晶から成る表示素子１３ａの場合は、図８に示す。これも、液晶の表示素子１３ａを一列に並べ、当該表示素子１３ａを空間線量が比較的低い安全区域表示１７、空間線量が中程度の注意区域表示１８、空間線量が高い危険区域表示１９の３つに分け、夫々緑色、黄色、赤色を発光するように構成している。 A display element 13a made of liquid crystal is shown in FIG. Also, the liquid crystal display elements 13a are arranged in a line, and the display elements 13a are arranged in a safe area display 17 having a relatively low air dose, a caution area display 18 having a medium air dose, and a danger area display 19 having a high air dose. It is configured to emit green, yellow, and red light respectively.
そして、前記危険区域表示１９のうちの一定の規定値の空間線量レベル以上となった場合には、赤色の液晶を点滅すると同時にアラーム音を鳴らし、注意をより強く喚起させるようになっている。なお、これらの前記安全区域表示１７、注意区域表示１８及び危険区域表示１９は前記ＣＰＵ１１に用意された安全区域テーブル２２、注意区域テーブル２３、危険区域テーブル２４にそれぞれ対応し、点滅又は点灯する。 When the air dose level of a certain prescribed value in the danger area display 19 is exceeded, the red liquid crystal blinks and at the same time, an alarm sound is generated to raise the attention more strongly. The safety area display 17, the caution area display 18, and the danger area display 19 correspond to the safety area table 22, the caution area table 23, and the danger area table 24 prepared in the CPU 11, and blink or light up.
また、前記前面防風窓３の内側の、上下及び左右の四側縁に沿って設けた表示手段４は、図９に示す様に、具体的には台紙２０と表示手段本体２１とから構成される。台紙２０は表示手段本体２１より、横幅、縦幅がやや大きくなっている。そして台紙２０は予め前記前面防風窓３の内側に貼り付けられており、表面が面ファスナー２０ａで構成されている。 Further, the display means 4 provided along the four sides of the upper and lower sides and the left and right sides inside the front windbreak window 3 is specifically composed of a mount 20 and a display means body 21 as shown in FIG. The The mount 20 is slightly larger in width and length than the display means body 21. The mount 20 is affixed to the inside of the front windproof window 3 in advance, and the surface is constituted by a hook-and-loop fastener 20a.
また、前記表示手段本体２１は、表面に前記表示素子１３又は１３ａが設けられ（図ではＬＥＤから成る表示素子１３を示す）、裏面に前記面ファスナー２０ａに貼り付く面ファスナー２１ａが設けられており、台紙２０に対して表示手段本体２１が着脱自在となっている。なお、実際は表示手段本体２１と前記放射線測定器２との間にはリード線が設けられているが、図示を省略している。 Further, the display means body 21 is provided with the display element 13 or 13a on the surface (the display element 13 made of LEDs is shown in the figure), and provided with a hook-and-loop fastener 21a attached to the hook-and-loop fastener 20a on the back surface. The display means main body 21 is detachable from the mount 20. Actually, a lead wire is provided between the display means main body 21 and the radiation measuring instrument 2, but the illustration is omitted.
この全面防護マスク１を被る人間の視界は、図１０の（ａ）図で示す様に、平面方向では左右で２００°〜（２００°−左右各５°）の範囲であり、縦方向では上下で１３０°〜（１３０°−上下各５°）の範囲と言われている。従って、当該全面防護マスク１を被る作業者の頭や顔の大きさによって多少のばらつきがある。 As shown in FIG. 10 (a), the field of view of a person wearing this full-face protective mask 1 is in the range of 200 ° to (200 ° −5 ° to the left and right) in the horizontal direction and up and down in the vertical direction. Is said to be in the range of 130 ° to (130 ° —up and down 5 ° each). Therefore, there is some variation depending on the size of the head and face of the worker who wears the entire protective mask 1.
そこでこの発明では、当該全面防護マスク１を被る作業者に応じて、表示手段４の台紙２０に対する表示手段本体２１の位置をずらし、表示手段４の表示手段本体２１が作業者の視界の隅に確実に入るように調整できる。 Therefore, in the present invention, the position of the display means body 21 with respect to the mount 20 of the display means 4 is shifted according to the worker who wears the full-face protective mask 1, and the display means body 21 of the display means 4 is placed at the corner of the worker's field of view. It can be adjusted to ensure entry.
なお、この実施の形態例では、表示手段４を前面防風窓３の４つの側縁に設けているが、少なくとも１側に設けていれば良い。 In this embodiment, the display means 4 is provided on the four side edges of the front windbreak window 3, but it may be provided on at least one side.
また、前記表示手段４の表示素子１３又は１３ａの構成を、３つに区画し、夫々の区画で表示する色彩を色分けしているが、これらの区画の数は任意であり、放射線量の大きさに応じて決められた位置の１つの区画のみを同色の光を点灯又は点滅させる構成でも良い。また、複数の区画に分けずに、放射線量の大きさによって、色彩の異なる表示をする構成としてもよい。 Further, the configuration of the display element 13 or 13a of the display means 4 is divided into three, and the colors displayed in the respective sections are color-coded, but the number of these sections is arbitrary, and the radiation dose is large. A configuration may be used in which light of the same color is lit or blinked in only one section at a position determined according to the situation. Moreover, it is good also as a structure which displays differently according to the magnitude | size of a radiation dose, without dividing into a some division.
１ 全面防護マスク １ａ 全面防護マスク
２ 放射線測定器 ３ 前面防風窓
４ 表示手段 ５ 電源部
６ 放射線 ７ 放射線検出部
８ 増幅部 ９ 変換部
１０ しきい値決定回路 １１ ＣＰＵ
１２ 表示部 １３ 表示素子
１３ａ 表示素子
１４ 安全区域表示 １５ 注意区域表示
１６ 危険区域表示 １７ 安全区域表示
１８ 注意区域表示 １９ 危険区域表示
２０ 台紙 ２０ａ 面ファスナー
２１ 表示手段本体 ２１ａ 面ファスナー
２２ 安全区域テーブル ２３ 注意区域テーブル
２４ 危険区域テーブル
1 Full-face protective mask 1a Full-face protective mask
2 Radiation measuring instrument 3 Front windproof window
4 Display means 5 Power supply
6 Radiation 7 Radiation Detection Unit 8 Amplification Unit 9 Conversion Unit 10 Threshold Determination Circuit 11 CPU
12 Display Unit 13 Display Element 13a Display Element 14 Safety Area Display 15 Caution Area Display
16 Hazardous area display 17 Safety area display
18 Caution area display 19 Hazardous area display 20 Mount 20a Hook and loop fastener
21 display means body 21a hook and loop fastener 22 safety zone table 23 caution zone table 24 danger zone table
Claims (4)
放射線測定器と、当該放射線測定器で測定する放射線量に応じて表示箇所又は表示色彩を変化させる制御手段と、当該制御手段を介して放射線量の高低を表示する表示手段と、前記放射線測定器、制御手段及び表示手段に電源を供給する電源手段とを当該防護マスクの内側に取付け、前記表示手段は作業者の視覚の隅に入る位置の前記防護マスクの防風窓の内側の左側縁、右側縁、上縁又は下縁のいずれかに設けたことを特徴とする、放射線量視認用防護マスク。 In protective masks worn by workers working in a radiation environment,
A radiation measuring instrument, a control means for changing a display location or display color according to the radiation dose measured by the radiation measuring instrument, a display means for displaying the level of the radiation dose via the control means, and the radiation measuring instrument The control means and the power supply means for supplying power to the display means are attached to the inside of the protective mask, and the display means is located on the left side edge and right side inside the windbreak window of the protective mask at a position that enters the corner of the operator's vision. A protective mask for visualizing radiation dose, characterized in that it is provided on either the edge, the upper edge or the lower edge.
3. The display unit according to claim 1 or 2, wherein a number of display elements are arranged, and display elements having different colors are turned on or blinking according to the measured radiation dose. The radiation dose protective mask as described.
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| JPH0854282A (en) * | 1994-07-07 | 1996-02-27 | Gec Marconi Ltd | Head-mounted display device |
| US6456261B1 (en) * | 1998-11-23 | 2002-09-24 | Evan Y. W. Zhang | Head/helmet mounted passive and active infrared imaging system with/without parallax |
| US20020196202A1 (en) * | 2000-08-09 | 2002-12-26 | Bastian Mark Stanley | Method for displaying emergency first responder command, control, and safety information using augmented reality |
| US20130242110A1 (en) * | 2011-06-10 | 2013-09-19 | Flir Systems, Inc | Wearable apparatus with integrated infrared imaging module |
| JP2015166708A (en) * | 2014-03-04 | 2015-09-24 | 株式会社日本環境調査研究所 | Personal exposure dose data visualization system |
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|---|---|---|---|---|
| JPH0854282A (en) * | 1994-07-07 | 1996-02-27 | Gec Marconi Ltd | Head-mounted display device |
| US6456261B1 (en) * | 1998-11-23 | 2002-09-24 | Evan Y. W. Zhang | Head/helmet mounted passive and active infrared imaging system with/without parallax |
| US20020196202A1 (en) * | 2000-08-09 | 2002-12-26 | Bastian Mark Stanley | Method for displaying emergency first responder command, control, and safety information using augmented reality |
| US20130242110A1 (en) * | 2011-06-10 | 2013-09-19 | Flir Systems, Inc | Wearable apparatus with integrated infrared imaging module |
| JP2015166708A (en) * | 2014-03-04 | 2015-09-24 | 株式会社日本環境調査研究所 | Personal exposure dose data visualization system |
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