JP6430055B1 - Airtight maintenance mechanism of shielding door - Google Patents

Airtight maintenance mechanism of shielding door Download PDF

Info

Publication number
JP6430055B1
JP6430055B1 JP2018115772A JP2018115772A JP6430055B1 JP 6430055 B1 JP6430055 B1 JP 6430055B1 JP 2018115772 A JP2018115772 A JP 2018115772A JP 2018115772 A JP2018115772 A JP 2018115772A JP 6430055 B1 JP6430055 B1 JP 6430055B1
Authority
JP
Japan
Prior art keywords
shielding door
opening
closed position
door
sealing material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2018115772A
Other languages
Japanese (ja)
Other versions
JP2019219230A (en
Inventor
洋伸 小野
洋伸 小野
正弘 立若
正弘 立若
洋 遠藤
遠藤　　洋
優 澤幡
優 澤幡
Original Assignee
株式会社関東技研
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=64480543&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP6430055(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 株式会社関東技研 filed Critical 株式会社関東技研
Priority to JP2018115772A priority Critical patent/JP6430055B1/en
Application granted granted Critical
Publication of JP6430055B1 publication Critical patent/JP6430055B1/en
Publication of JP2019219230A publication Critical patent/JP2019219230A/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Support Devices For Sliding Doors (AREA)

Abstract

【課題】原子力発電所の建屋などに設けたブローアウトパネルが開放されたときに開口部を塞ぐための遮蔽扉の気密維持機構を提供する。
【解決手段】建屋の開口部を塞いでいるブローアウトパネルと重ならない開位置に設けられ、前記ブローアウトパネルが開放された後に前記開口部を塞ぐように閉位置までスライド移動可能な遮蔽扉と、前記遮蔽扉の上部を前後可動なアームで吊り下げると共に上レールで支持し、閉位置に来た前記遮蔽扉を押さえるための上押さえを有する上枠部と、前記遮蔽扉の下部を下レールで支持し、閉位置に来た前記遮蔽扉を押さえるための下押さえを有する下枠部と、前記遮蔽扉の側部を押さえ、閉位置に来た前記遮蔽扉を押さえるための側押さえを有する側枠部と、前記開口部を囲むように取り付けられ、閉位置に来た前記遮蔽扉と前記開口部の隙間を密閉するためのシール材と、を備える。
【選択図】図１An airtight maintenance mechanism for a shielding door for closing an opening when a blowout panel provided in a building of a nuclear power plant or the like is opened.
A shielding door provided in an open position that does not overlap with a blowout panel closing an opening of a building and capable of sliding to a closed position so as to close the opening after the blowout panel is opened. The upper part of the shielding door is suspended by a front and rear movable arm and supported by the upper rail, and the upper frame part has an upper presser for holding the shielding door in the closed position, and the lower part of the shielding door is the lower rail. A lower frame portion having a lower presser for supporting the shielding door that has come to the closed position and a side presser for holding the side portion of the shielding door and holding the shielding door that has come to the closed position. A side frame, and a sealing material that is attached so as to surround the opening and that seals a gap between the shielding door that has come to a closed position and the opening.
[Selection] Figure 1

Description

本発明は、原子力発電所の建屋などに設けたブローアウトパネルが開放されたときに開口部を塞ぐための遮蔽扉の気密維持機構に関する。   The present invention relates to an airtight maintenance mechanism for a shielding door for closing an opening when a blowout panel provided in a building of a nuclear power plant or the like is opened.

原子力発電所など原子力施設においては、原子炉建屋やタービン建屋の壁に予め開口部を設け、ブローアウトパネル（破裂板式安全装置）で塞いでいる。放射性物質を含む水蒸気などが原子炉格納容器などから漏洩したとしても気密性は維持されているが、建屋内の圧力が急激に増加した場合に、建屋全体の爆発を避けるためにブローアウトパネルを開放して圧力を逃がす構造を取っている。   In a nuclear facility such as a nuclear power plant, an opening is provided in advance in a wall of a reactor building or a turbine building, and the opening is closed with a blowout panel (rupture disc type safety device). Even if water vapor containing radioactive material leaks from the reactor containment vessel, etc., the airtightness is maintained, but if the pressure in the building suddenly increases, a blowout panel is installed to avoid explosion of the entire building. It has a structure that opens and releases pressure.

ブローアウトパネルは、建屋内の圧力上昇により建屋に固定するための部材が変形することで外れ、建屋の外側に落下する。特許文献１に記載されているように、全電源喪失状態でも遠隔からブローアウトパネルを開放でき、設置に際しては建屋外部から施工することができるブローアウトパネル開放装置の発明も開示されている。   The blowout panel is detached by deformation of a member for fixing to the building due to an increase in pressure in the building, and falls to the outside of the building. As described in Patent Document 1, there is also disclosed an invention of a blowout panel opening device that can open a blowout panel from a remote location even in a state where all power is lost, and that can be installed from outside the building.

特許第６１６５５８７号公報Japanese Patent No. 6165587

建屋内に放射性物質があれば、ブローアウトパネルの開放により大気にも漏洩するおそれがある。建屋が爆発するよりは放射性物質の漏洩は少なくて済むと考えられるが、ブローアウトパネルを開放したままだと、徐々に放射性物質が大気に漏洩していくため、建屋内の圧力が下がったら開口部を塞ぐ必要性が生じる。   If there is radioactive material in the building, there is a risk of leakage into the atmosphere by opening the blowout panel. It is thought that the leakage of radioactive material is less than the explosion of the building, but if the blowout panel is left open, the radioactive material will gradually leak into the atmosphere, so if the pressure inside the building drops, it will open. The need to block the part arises.

そこで、本発明は、原子力発電所の建屋などに設けたブローアウトパネルが開放されたときに開口部を塞ぐための遮蔽扉の気密維持機構を提供することを目的とする。   Accordingly, an object of the present invention is to provide an airtight maintenance mechanism for a shielding door for closing an opening when a blowout panel provided in a building of a nuclear power plant or the like is opened.

上記の課題を解決するために、本発明である遮蔽扉の気密維持機構は、建屋の開口部を塞いでいるブローアウトパネルと重ならない開位置に設けられ、前記ブローアウトパネルが開放された後に前記開口部を塞ぐように閉位置までスライド移動可能な遮蔽扉と、前記遮蔽扉の上部を前後可動なアームで吊り下げると共に上レールで支持し、閉位置に来た前記遮蔽扉を押さえるための上押さえを有する上枠部と、前記遮蔽扉の下部を下レールで支持し、閉位置に来た前記遮蔽扉を押さえるための下押さえを有する下枠部と、前記遮蔽扉の側部を押さえ、閉位置に来た前記遮蔽扉を押さえるための側押さえを有する側枠部と、前記開口部を囲むように取り付けられ、閉位置に来た前記遮蔽扉と前記開口部の隙間を密閉するためのシール材と、を備え、前記遮蔽扉は、前記上レールを挟持するように上ガイドが設けられ、前記下レールを挟持するように下ガイドが設けられ、さらに閉位置に来たときに前記上下押さえ及び前記側押さえによって前記シール材に押されるように上下カム及び側カムが設けられ、前記上下レールは、前記アームに吊下された前記遮蔽扉を前記シール材に押し付けたときに前記上下ガイドが抜けるように切欠きが設けられる、ことを特徴とする。
In order to solve the above problems, the airtight maintenance mechanism of the shielding door according to the present invention is provided at an open position that does not overlap with the blowout panel closing the opening of the building, and after the blowout panel is opened A shield door that is slidable to a closed position so as to close the opening, and an upper part of the shield door is suspended by a front and rear movable arm and supported by an upper rail to hold the shield door that has come to the closed position. An upper frame part having an upper presser, a lower frame part supporting the lower part of the shielding door with a lower rail, and holding the lowering part to press the shielding door that has come to the closed position, and a side part of the shielding door. A side frame having a side press for pressing the shielding door that has come to the closed position, and a side frame that is attached so as to surround the opening, and seals the gap between the shielding door and the opening that has come to the closed position And sealing material , The shielding door, the upper rail the upper guide is provided so as to sandwich the lower guide is provided so as to sandwich the lower rail, by the upper and lower pressing and the side presser when further come to the closed position An upper and lower cam and a side cam are provided so as to be pushed by the seal material, and the upper and lower rails are notched so that the upper and lower guides come out when the shielding door suspended by the arm is pressed against the seal material. Is provided.

また、前記遮蔽扉の気密維持機構において、前記上枠部は、前記遮蔽扉を開位置から閉位置からスライド移動させるための駆動機構を備える、ことを特徴とする。   In the airtightness maintaining mechanism of the shielding door, the upper frame portion includes a driving mechanism for sliding the shielding door from the open position to the closed position.

また、前記遮蔽扉の気密維持機構において、前記上下カム及び上下押さえは、前記開口部の左端から右端まで複数が間欠的に設けられ、前記側枠部に向かうにしたがって前記開口部に近付くように前後方向にずれて配置される、ことを特徴とする。   Further, in the airtight maintaining mechanism of the shielding door, the upper and lower cams and the upper and lower pressers are provided intermittently from the left end to the right end of the opening, and approach the opening as it goes to the side frame. It is characterized by being displaced in the front-rear direction.

また、前記遮蔽扉の気密維持機構において、前記上下カム及び側カムは、前記側枠部よりも中央側が厚くなるように傾斜面を有しており、当該傾斜面が前記上下押さえ及び側押さえに載ることで、前記遮蔽扉が前記シール材に押し付けられる、ことを特徴とする。   Further, in the airtight maintenance mechanism of the shielding door, the upper and lower cams and the side cam have an inclined surface so that a central side is thicker than the side frame portion, and the inclined surface serves as the upper and lower pressing member and the side pressing member. By mounting, the said shielding door is pressed against the said sealing material, It is characterized by the above-mentioned.

また、前記遮蔽扉の気密維持機構において、前記シール材は、内部が中空で表面に複数の凹凸が並設された、ことを特徴とする。   Further, in the airtight maintenance mechanism of the shielding door, the sealing material is hollow inside, and a plurality of irregularities are arranged in parallel on the surface.

さらに、本発明である遮蔽扉は、前記気密維持機構を備える、ことを特徴とする。   Furthermore, the shielding door which is this invention is provided with the said airtight maintenance mechanism, It is characterized by the above-mentioned.

本発明によれば、原子力発電所の建屋などに設けたブローアウトパネルが開放されたときに開口部を塞ぐことができる。建屋内の圧力が逃げた後に、遮蔽扉を押し付けるように開口部を密閉することで、放射性物質が徐々に大気へ漏洩していくのを抑えることができる。開口部が高所であっても遠隔から重量のある遮蔽扉を駆動させることができる。シール材が遮蔽扉の裏面ではなく、開口部を囲むように取り付けられているので、掃除や交換などのメンテナンスが容易である。   ADVANTAGE OF THE INVENTION According to this invention, when a blowout panel provided in the building of a nuclear power plant etc. is opened, an opening part can be plugged up. After the pressure in the building has escaped, it is possible to prevent the radioactive material from gradually leaking into the atmosphere by sealing the opening so as to press the shielding door. Even when the opening is at a high place, a heavy shielding door can be driven from a distance. Since the sealing material is attached not to the rear surface of the shielding door but to surround the opening, maintenance such as cleaning and replacement is easy.

本発明である遮蔽扉が開いている状態を示す正面図である。It is a front view which shows the state which the shielding door which is this invention is open. 本発明である遮蔽扉を閉じた状態を示す正面図である。It is a front view which shows the state which closed the shielding door which is this invention. 本発明である遮蔽扉を閉じた状態における平面図である。It is a top view in the state where the shielding door which is the present invention was closed. 本発明である遮蔽扉を閉じた状態における側面図である。It is a side view in the state where the shielding door which is the present invention was closed. 本発明である遮蔽扉の上枠部を拡大した右側面図である。It is the right view which expanded the upper frame part of the shielding door which is this invention. 本発明である遮蔽扉の上枠部を拡大した斜視図である。It is the perspective view which expanded the upper frame part of the shielding door which is this invention. 本発明である遮蔽扉の上枠部を左側から見た斜視図である。It is the perspective view which looked at the upper frame part of the shielding door which is the present invention from the left side. 本発明である遮蔽扉の駆動機構を示す斜視図である。It is a perspective view which shows the drive mechanism of the shielding door which is this invention. 本発明である遮蔽扉の下枠部を拡大した正面図である。It is the front view which expanded the lower frame part of the shielding door which is this invention. 本発明である遮蔽扉の下枠部を左側から見た斜視図である。It is the perspective view which looked at the lower frame part of the shielding door which is this invention from the left side. 本発明である遮蔽扉の側枠部を拡大した平面図である。It is the top view which expanded the side frame part of the shielding door which is this invention. 本発明である遮蔽扉の側枠部を拡大した斜視図である。It is the perspective view which expanded the side frame part of the shielding door which is this invention. 本発明である遮蔽扉に使用する気密材の断面図である。It is sectional drawing of the airtight material used for the shielding door which is this invention.

以下に、本発明の実施形態について図面を参照して詳細に説明する。なお、同一機能を有するものは同一符号を付け、その繰り返しの説明は省略する場合がある。   Embodiments of the present invention will be described below in detail with reference to the drawings. In addition, what has the same function attaches | subjects the same code | symbol, and the repeated description may be abbreviate | omitted.

まず、本発明である遮蔽扉について説明する。図１は、遮蔽扉が開いている状態を示す正面図である。図２は、遮蔽扉を閉じた状態を示す正面図である。図３は、遮蔽扉を閉じた状態における平面図である。図４は、遮蔽扉を閉じた状態における側面図である。なお、図１において建屋の外側（正面側）を前（表）とし、内側を後（裏）とする。   First, the shielding door which is this invention is demonstrated. FIG. 1 is a front view showing a state in which the shielding door is open. FIG. 2 is a front view showing a state in which the shielding door is closed. FIG. 3 is a plan view in a state where the shielding door is closed. FIG. 4 is a side view in a state where the shielding door is closed. In FIG. 1, the outside (front side) of the building is the front (front) and the inside is the back (back).

図１〜４に示すように、建屋１００は、予め壁１１０に屋内から屋外に貫通する開口部１２０を空けておき、開口部１２０を塞ぐようにブローアウトパネル（図示せず）を留具で固定しておくことにより、屋内の圧力が高くなったときに留具を変形又は破壊等することで固定を解除し、ブローアウトパネルを屋外に落下させて開放された開口部１２０から圧力を逃がす構造になっている。なお、開口部１２０が高所にある場合、外れたブローアウトパネルや留具を受け止めるようにしても良い。   As shown in FIGS. 1 to 4, the building 100 has an opening 120 penetrating from the indoor to the wall 110 in advance, and a blowout panel (not shown) is used as a fastener so as to close the opening 120. By fixing, when the indoor pressure becomes high, the fastener is deformed or broken to release the fixing, and the blowout panel is dropped outdoors to release the pressure from the opened opening 120. It has a structure. In addition, when the opening part 120 exists in a high place, you may make it receive the blowout panel and fastener which removed.

建屋１００には、開放された開口部１２０を塞ぐための遮蔽扉２００、遮蔽扉２００を保持するために壁１１０に取り付けられた上枠部３００、下枠部５００及び側枠部６００、遮蔽扉２００を開閉させるための駆動機構４００、遮蔽扉２００と開口部１２０の隙間を封止するためのシール材７００などを設ける。   The building 100 includes a shielding door 200 for closing the opened opening 120, an upper frame portion 300, a lower frame portion 500 and a side frame portion 600 attached to the wall 110 for holding the shielding door 200, a shielding door. A drive mechanism 400 for opening and closing 200, a sealing material 700 for sealing a gap between the shielding door 200 and the opening 120, and the like are provided.

遮蔽扉２００は、開口部１２０よりも一回り大きい金属板などであり、ブローアウトパネルが取り付けられた開口部１２０と重ならない位置（例えば、開口部１２０の左側など）に設置される。遮蔽扉２００は、駆動機構４００によって、開口部１２０と完全に重ならない開位置（図１参照）から、開口部１２０と完全に重なる閉位置（図２参照）までの範囲で、壁１１０に沿ってスライド移動（例えば、左右方向に移動）可能である。   The shielding door 200 is a metal plate or the like that is slightly larger than the opening 120, and is installed at a position that does not overlap the opening 120 to which the blowout panel is attached (for example, the left side of the opening 120). The shielding door 200 is moved along the wall 110 by the drive mechanism 400 in a range from an open position (see FIG. 1) that does not completely overlap the opening 120 to a closed position (see FIG. 2) that completely overlaps the opening 120. Can be slid (for example, moved in the left-right direction).

上枠部３００及び下枠部５００は、遮蔽扉２００が外れないように上下から支持しており、側枠部６００は、遮蔽扉２００が開位置と閉位置の範囲から飛び出さないように左右端を押さえている。   The upper frame portion 300 and the lower frame portion 500 are supported from above and below so that the shielding door 200 does not come off, and the side frame portion 600 is left and right so that the shielding door 200 does not jump out of the range between the open position and the closed position. Holding the edge.

シール材７００は、開口部１２０を囲むように壁１１０の表面に取り付けられ、遮蔽扉２００が閉位置に来たときに遮蔽扉２００の裏面の周縁部に接する。シール材７００を遮蔽扉２００の裏面に取り付けると、遮蔽扉２００を取り外さないとシール材７００をメンテナンスすることが困難（特に高所の場合や重量がある場合）であるが、開口部１２０の周囲であれば、開位置においてシール材７００のメンテナンスが容易である。   The sealing material 700 is attached to the surface of the wall 110 so as to surround the opening 120, and comes into contact with the peripheral edge of the back surface of the shielding door 200 when the shielding door 200 comes to the closed position. If the sealing material 700 is attached to the back surface of the shielding door 200, it is difficult to maintain the sealing material 700 unless the shielding door 200 is removed (particularly in the case of a high place or weight). Then, the maintenance of the sealing material 700 is easy at the open position.

次に、遮蔽扉の上枠部について説明する。図５は、遮蔽扉の上枠部を拡大した右側面図である。図６は、遮蔽扉の上枠部を拡大した斜視図である。図７は、遮蔽扉の上枠部を左側から見た斜視図である。図８は、遮蔽扉の駆動機構を示す斜視図である。   Next, the upper frame part of the shielding door will be described. FIG. 5 is an enlarged right side view of the upper frame portion of the shielding door. FIG. 6 is an enlarged perspective view of the upper frame portion of the shielding door. FIG. 7 is a perspective view of the upper frame portion of the shielding door as viewed from the left side. FIG. 8 is a perspective view showing a driving mechanism of the shielding door.

図５及び図６に示すように、上枠部３００は、遮蔽扉２００を支持する上支持枠３１０、遮蔽扉２００を吊り下げるアーム３２０、遮蔽扉２００をシール材７００に押し付けるための上押さえ３３０、及び遮蔽扉２００がスライド移動する際に前後方向にずれないように保持する上レール３４０等を備える。なお、駆動機構４００は、上枠部３００に設ければ良い。   As shown in FIGS. 5 and 6, the upper frame portion 300 includes an upper support frame 310 that supports the shielding door 200, an arm 320 that suspends the shielding door 200, and an upper presser 330 that presses the shielding door 200 against the sealing material 700. And an upper rail 340 that holds the shield door 200 so as not to be displaced in the front-rear direction when the shielding door 200 slides. The drive mechanism 400 may be provided in the upper frame part 300.

また、遮蔽扉２００の上部には、上押さえ３３０によってシール材７００に押し付けられるように上カム２１０を設け、上レール３４０によって前後方向にずれることなくスライド移動するように上ガイド２２０を設ける。   In addition, an upper cam 210 is provided on the upper portion of the shielding door 200 so as to be pressed against the sealing material 700 by the upper presser 330, and an upper guide 220 is provided by the upper rail 340 so as to slide without being displaced in the front-rear direction.

上支持枠３１０は、壁１１０に固定され、遮蔽扉２００の荷重を支える。アーム３２０は、上支持枠３１０と遮蔽扉２００を連結することで、遮蔽扉２００を吊り下げる。上支持枠３１０側と遮蔽扉２００側にそれぞれ軸を通すことにより、遮蔽扉２００を前後方向（図５においては左右）に可動させる。アーム３２０は、開位置においては、遮蔽扉２００の重量により垂下しているが、閉位置においては、遮蔽扉２００がシール材７００に押し付けられることにより後方（図５においては右）にずれた状態となる。   The upper support frame 310 is fixed to the wall 110 and supports the load of the shielding door 200. The arm 320 suspends the shielding door 200 by connecting the upper support frame 310 and the shielding door 200. By passing the shaft through the upper support frame 310 side and the shielding door 200 side, the shielding door 200 is moved in the front-rear direction (left and right in FIG. 5). The arm 320 hangs down due to the weight of the shielding door 200 in the open position, but in the closed position, the arm 320 is displaced rearward (right in FIG. 5) by being pressed against the sealing material 700. It becomes.

上押さえ３３０は、閉位置における遮蔽扉２００の上カム２１０の位置に合わせて、例えば円柱状の回転体を上支持枠３１０に固定したものである。上カム２１０は、側枠部６００の方（図５においては手前側）から中央側（図５においては奥側）に向かって前方（図５においては左側）に傾斜しており、側枠部６００より中央側が厚くなる。閉位置に近付いたときに、傾斜面が上押さえ３３０に載ることで、遮蔽扉２００が後方に移動させられて、シール材７００に押し付けられる。   The upper press 330 is obtained by fixing, for example, a columnar rotating body to the upper support frame 310 in accordance with the position of the upper cam 210 of the shielding door 200 in the closed position. The upper cam 210 is inclined forward (left side in FIG. 5) from the side frame part 600 (front side in FIG. 5) toward the center side (back side in FIG. 5). The center side is thicker than 600. When approaching the closed position, the inclined surface is placed on the upper presser 330 so that the shielding door 200 is moved rearward and pressed against the sealing material 700.

上レール３４０は、上枠部３００の一端（図５においては最も手前）から他端まで（図５においては最も奥）至るように敷設し、遮蔽扉２００の上ガイド２２０で挟持することで、遮蔽扉２００を閉位置から開位置まで位置ずれすることなくスライド移動させる。上ガイド２２０は、上レール３４０の前後（図５においては左右）に接するように円柱状の回転体を併設すれば良い。   The upper rail 340 is laid from one end (frontmost in FIG. 5) to the other end (most rear in FIG. 5) of the upper frame 300, and is sandwiched by the upper guide 220 of the shielding door 200. The shielding door 200 is slid from the closed position to the open position without being displaced. The upper guide 220 may be provided with a columnar rotating body so as to contact the front and rear (left and right in FIG. 5) of the upper rail 340.

図７に示すように、上カム２１０と上押さえ３３０は、複数が間欠的に設けられ、それぞれが閉位置において対応するように、前後方向（図７においては左右）にずらして配置される。例えば、開口部１２０の左端（図７においては手前側）から右端（図７においては奥側）まで配置した場合、開位置から閉位置にスライド移動を開始したときに、右端の上カム２１０が左端の上押さえ３３０と接触しないように、側枠部６００に向かうにしたがって、開口部１２０に近付くように前後方向にずらせば良い。   As shown in FIG. 7, a plurality of upper cams 210 and upper pressers 330 are provided intermittently, and are arranged shifted in the front-rear direction (left and right in FIG. 7) so as to correspond in the closed position. For example, when the opening 120 is arranged from the left end (front side in FIG. 7) to the right end (back side in FIG. 7), the upper cam 210 on the right end is moved when the sliding movement starts from the open position to the closed position. What is necessary is just to shift to the front-back direction so that it may approach the opening part 120 as it goes to the side frame part 600 so that it may not contact with the upper holding | maintenance 330 of a left end.

図８に示すように、駆動機構４００は、ギア４１０、４１０ａ、４１０ｂ、ギア４１０に通した回転軸４２０、及び回転軸４２０を回転させるモータ４３０等を有する。遮蔽扉２００と連結した駆動用レール３５０を敷設し、ギア４１０ａとギア４１０ｂを駆動用レール３５０上に配置し、ギア４１０をギア４１０ａとギア４１０ｂの間かつ上方に配置する。そして、チェーンを駆動用レール３５０に張り、ギア４１０ａ、ギア４１０、ギア４１０ｂに掛ける。モータ４３０を駆動してギア４１０を回転させると、チェーンが巻かれて駆動用レール３５０と共に遮蔽扉２００が移動する。   As shown in FIG. 8, the drive mechanism 400 includes gears 410, 410 a, 410 b, a rotating shaft 420 that passes through the gear 410, a motor 430 that rotates the rotating shaft 420, and the like. A driving rail 350 connected to the shielding door 200 is laid, the gear 410a and the gear 410b are disposed on the driving rail 350, and the gear 410 is disposed between and above the gear 410a and the gear 410b. Then, the chain is stretched on the driving rail 350 and hung on the gear 410a, the gear 410, and the gear 410b. When the motor 430 is driven to rotate the gear 410, the chain is wound and the shielding door 200 moves together with the driving rail 350.

駆動機構４００は、遠隔から駆動させることができるようにすることが好ましい。リミットスイッチなどにより減速及び停止するように制御すれば良い。開口部１２０が高所であっても遠隔から重量のある遮蔽扉２００を駆動させることが可能となる。また、電源等が失われた状態でも駆動できることが好ましい。   It is preferable that the driving mechanism 400 can be driven remotely. What is necessary is just to control so that it may decelerate and stop with a limit switch etc. Even when the opening 120 is high, the heavy shielding door 200 can be driven from a distance. Moreover, it is preferable that it can be driven even when the power source or the like is lost.

次に、遮蔽扉の下枠部について説明する。図９は、遮蔽扉の下枠部を拡大した正面図である。図１０は、遮蔽扉の下枠部を左側から見た斜視図である。   Next, the lower frame part of the shielding door will be described. FIG. 9 is an enlarged front view of the lower frame portion of the shielding door. FIG. 10 is a perspective view of the lower frame portion of the shielding door as viewed from the left side.

図９に示すように、下枠部５００は、遮蔽扉２００を支持する下支持枠５１０、遮蔽扉２００をシール材７００に押し付けるための下押さえ５２０、及び遮蔽扉２００がスライド移動する際に前後方向にずれないように保持する下レール５３０等を備える。   As shown in FIG. 9, the lower frame portion 500 includes a lower support frame 510 that supports the shielding door 200, a lower presser 520 that presses the shielding door 200 against the sealing material 700, and the front and rear when the shielding door 200 slides. The lower rail 530 etc. which hold | maintain so that it may not shift | deviate to a direction are provided.

また、遮蔽扉２００の下部には、下押さえ５２０によってシール材７００に押し付けられるように下カム２３０を設け、下レール５３０によって前後方向にずれることなくスライド移動するように下ガイド２４０を設ける。   Further, a lower cam 230 is provided at the lower part of the shielding door 200 so as to be pressed against the sealing material 700 by the lower presser 520, and a lower guide 240 is provided by the lower rail 530 so as to slide without being displaced in the front-rear direction.

下支持枠５１０は、壁１１０に固定される。なお、下支持枠５１０の上に遮蔽扉２００が直接載置されている訳ではないので、下支持枠５１０に遮蔽扉２００の荷重は掛からない。   The lower support frame 510 is fixed to the wall 110. Since the shielding door 200 is not directly placed on the lower support frame 510, the load of the shielding door 200 is not applied to the lower support frame 510.

下押さえ５２０は、閉位置における遮蔽扉２００の下カム２３０の位置に合わせて、例えば円柱状の回転体を下支持枠５１０に固定したものである。下カム２３０は、側枠部６００の方から中央側に向かって前方に傾斜しており、側枠部６００より中央側が厚くなる。閉位置に近付いたときに、傾斜面が下押さえ５２０に載ることで、遮蔽扉２００が後方に移動させられて、シール材７００に押し付けられる。   The lower presser 520 is obtained by fixing, for example, a columnar rotating body to the lower support frame 510 in accordance with the position of the lower cam 230 of the shielding door 200 in the closed position. The lower cam 230 is inclined forward from the side frame portion 600 toward the center side, and the center side is thicker than the side frame portion 600. When approaching the closed position, the inclined surface is placed on the lower presser 520, whereby the shielding door 200 is moved rearward and pressed against the sealing material 700.

下レール５３０は、下枠部５００の一端から他端まで至るように敷設し、遮蔽扉２００の下ガイド２４０で挟持することで、遮蔽扉２００を閉位置から開位置まで位置ずれすることなくスライド移動させる。下ガイド２４０は、下レール５３０の前後に接するように円柱状の回転体を併設すれば良い。   The lower rail 530 is laid so as to extend from one end to the other end of the lower frame portion 500, and is sandwiched by the lower guide 240 of the shielding door 200 so that the shielding door 200 is slid without being displaced from the closed position to the open position. Move. The lower guide 240 may be provided with a columnar rotating body so as to contact the front and rear of the lower rail 530.

下カム２３０と下押さえ５２０は、複数が間欠的に設けられ、それぞれが閉位置において対応するように、前後方向にずらして配置される。例えば、開口部１２０の左端から右端まで配置した場合、開位置から閉位置にスライド移動を開始したときに、右端の下カム２３０が左端の下押さえ５２０と接触しないように、側枠部６００に向かうにしたがって、開口部１２０に近付くように前後方向にずらせば良い。   A plurality of lower cams 230 and lower pressers 520 are provided intermittently, and are shifted in the front-rear direction so as to correspond to each other in the closed position. For example, when the opening 120 is arranged from the left end to the right end, when the sliding movement is started from the open position to the closed position, the right frame lower cam 230 does not come into contact with the left end lower presser 520. What is necessary is just to shift to the front-back direction so that it may approach the opening part 120 as it goes.

図１０に示すように、下レール５３０には、遮蔽扉２００をシール材７００に押し付けたときに下ガイド２４０が抜けるようにスリット状の切欠き５４０が設けられる。なお、上レール３４０にも同様に切欠き５４０を設ける。   As shown in FIG. 10, the lower rail 530 is provided with a slit-shaped notch 540 so that the lower guide 240 comes out when the shielding door 200 is pressed against the sealing material 700. The upper rail 340 is similarly provided with a notch 540.

アーム３２０に吊下された遮蔽扉２００は、上ガイド２２０が上レール３４０に挟まっているため、また下ガイド２４０が下レール５３０に挟まっているため、前後方向への移動が制限されている。上レール３４０及び下レール５３０に切欠き５４０を空けることで、閉位置において遮蔽扉２００をシール材７００に押し付けることが可能となる。   Since the upper guide 220 is sandwiched between the upper rails 340 and the lower guide 240 is sandwiched between the lower rails 530, the shield door 200 suspended from the arm 320 is restricted from moving in the front-rear direction. By opening the notches 540 in the upper rail 340 and the lower rail 530, the shielding door 200 can be pressed against the sealing material 700 in the closed position.

次に、遮蔽扉の側枠部について説明する。図１１は、遮蔽扉の側枠部を拡大した平面図である。図１２は、遮蔽扉の側枠部を拡大した斜視図である。   Next, the side frame part of the shielding door will be described. FIG. 11 is an enlarged plan view of the side frame of the shielding door. FIG. 12 is an enlarged perspective view of the side frame portion of the shielding door.

図１１及び図１２に示すように、側枠部６００は、遮蔽扉２００を支持する側支持枠６１０、及び遮蔽扉２００をシール材７００に押し付けるための側押さえ６２０等を備える。また、遮蔽扉２００の側部には、側押さえ６２０によってシール材７００に押し付けられるように側カム２５０を設ける。   As shown in FIGS. 11 and 12, the side frame portion 600 includes a side support frame 610 that supports the shielding door 200, a side presser 620 that presses the shielding door 200 against the sealing material 700, and the like. Further, a side cam 250 is provided on the side portion of the shielding door 200 so as to be pressed against the sealing material 700 by the side presser 620.

側支持枠６１０は、壁１１０に固定される。側押さえ６２０は、閉位置における遮蔽扉２００の側カム２５０の位置に合わせて、回転体を側支持枠６１０に固定したものである。側カム２５０は、側枠部６００の方から中央側に向かって前方に傾斜しており、側枠部６００より中央側が厚くなる。閉位置に近付いたときに、傾斜面が側押さえ６２０に載ることで、遮蔽扉２００が後方に移動させられて、シール材７００に押し付けられる。   The side support frame 610 is fixed to the wall 110. The side presser 620 is obtained by fixing the rotating body to the side support frame 610 in accordance with the position of the side cam 250 of the shielding door 200 in the closed position. The side cam 250 is inclined forward from the side frame portion 600 toward the center side, and the center side is thicker than the side frame portion 600. When approaching the closed position, the inclined surface is placed on the side presser 620, whereby the shielding door 200 is moved rearward and pressed against the sealing material 700.

次に、遮蔽扉に使用する気密材について説明する。図１３は、遮蔽扉に使用する気密材の断面図である。   Next, the airtight material used for the shielding door will be described. FIG. 13 is a cross-sectional view of an airtight material used for the shielding door.

図１３（ａ）に示すように、シール材７００は、樹脂などを用いて気密性を確保するもので、表面に複数並設された凹凸部７１０、内部に空間を確保した中空部７２０、壁１１０に接する土台７３０、凹凸部７１０と土台７３０を連結する支え７４０、及び土台７３０を壁１１０に固定する取付部７５０等を有する。   As shown in FIG. 13A, the sealing material 700 uses a resin or the like to ensure hermeticity, and a plurality of uneven portions 710 arranged on the surface, a hollow portion 720 that secures a space inside, a wall 110, a base 730 in contact with 110, a support 740 that connects the uneven portion 710 and the base 730, a mounting portion 750 that fixes the base 730 to the wall 110, and the like.

凹凸部７１０は、複数の突起を遮蔽扉２００に接触させることで、気密性を向上させる。例えば、図１３（ｂ）に示すように、３本の長い突起を設け、それらが湾曲するように接触させることで、左右どちら側から接触しても気密性が確保されるようにしても良い。なお、押込量が増大したときに凹凸部７１０が中空部７２０の方に湾曲するように変形してシール性が損なわれないようにすることが好ましい。   The concavo-convex portion 710 improves airtightness by bringing a plurality of protrusions into contact with the shielding door 200. For example, as shown in FIG. 13B, three long protrusions may be provided and contacted so that they are curved, so that airtightness can be ensured regardless of the contact from the left or right side. . In addition, it is preferable to deform | transform so that the uneven | corrugated | grooved part 710 may curve in the direction of the hollow part 720, and a sealing performance is not impaired when the pushing amount increases.

例えば、図１３（ｃ）に示すように、中空部７２０に空気は注入しないが、スポンジ状のウレタン等を充填して弾力性を持たせても良い。また、図１３（ｄ）に示すように、中空部７２０にゴム状のホースを内蔵させたり、図１３（ｅ）に示すように、中空部７２０において凹凸部７１０の裏面と土台７３０を繋いで補強したりしても良い。さらに、図１３（ｆ）に示すように、支え７４０をバネ状にして弾力性を持たせたり、図１３（ｇ）に示すように、土台７３０を底上げしたりしても良い。   For example, as shown in FIG. 13C, air is not injected into the hollow portion 720, but it may be made elastic by filling with sponge-like urethane or the like. Moreover, as shown in FIG.13 (d), a rubber-like hose is incorporated in the hollow part 720, or as shown in FIG.13 (e), the back surface of the uneven | corrugated | grooved part 710 and the base 730 are connected in the hollow part 720. It may be reinforced. Furthermore, as shown in FIG. 13 (f), the support 740 may be made spring-like to have elasticity, or the base 730 may be raised as shown in FIG. 13 (g).

本発明によれば、原子力発電所の建屋などに設けたブローアウトパネルが開放されたときに開口部１２０を塞ぐことができる。建屋１００内の圧力が逃げた後に、遮蔽扉２００を押し付けるように開口部１２０を密閉することで、放射性物質が徐々に大気へ漏洩していくのを抑えることができる。開口部１２０が高所であっても遠隔から重量のある遮蔽扉２００を駆動させることができる。シール材７００が遮蔽扉２００の裏面ではなく、開口部１２０を囲むように取り付けられているので、掃除や交換などのメンテナンスが容易である。   According to the present invention, the opening 120 can be closed when a blowout panel provided in a building of a nuclear power plant or the like is opened. After the pressure in the building 100 escapes, the opening 120 is sealed so as to press the shielding door 200, so that the radioactive material can be prevented from gradually leaking to the atmosphere. Even when the opening 120 is high, the heavy shielding door 200 can be driven from a distance. Since the sealing material 700 is attached not to the back surface of the shielding door 200 but to surround the opening 120, maintenance such as cleaning and replacement is easy.

以上、本発明の実施例を述べたが、これらに限定されるものではない。例えば、遮蔽扉２００に押さえを設け、枠部にカムを設けても良い。また、遮蔽扉２００にレールを設け、枠部にガイドを設けても良い。   As mentioned above, although the Example of this invention was described, it is not limited to these. For example, a presser may be provided on the shielding door 200 and a cam may be provided on the frame portion. Moreover, a rail may be provided in the shielding door 200 and a guide may be provided in the frame portion.

通常時においては、シール材７００が野ざらし状態となるので、シール材７００に塵や埃が付きにくいように、薄いシートなどを貼っておいても良い。また、高所等でも清掃が容易となるように塵や埃を吹き飛ばすブロアーなどを設けても良い。さらに、遮蔽扉２００にネット等を被せておいても良い。   In a normal state, the sealing material 700 is in a wild state, and thus a thin sheet or the like may be attached to the sealing material 700 so that dust and dirt are not easily attached. Further, a blower or the like that blows off dust or dust may be provided so as to facilitate cleaning even at high places. Furthermore, the shielding door 200 may be covered with a net or the like.

１００：建屋
１１０：壁
１２０：開口部
２００：遮蔽扉
２１０：上カム
２２０：上ガイド
２３０：下カム
２４０：下ガイド
２５０：側カム
３００：上枠部
３１０：上支持枠
３２０：アーム
３３０：上押さえ
３４０：上レール
３５０：駆動用レール
４００：駆動機構
４１０：ギア
４２０：回転軸
４３０：モータ
５００：下枠部
５１０：下支持枠
５２０：下押さえ
５３０：下レール
５４０：切欠き
６００：側枠部
６１０：側支持枠
６２０：側押さえ
７００：シール材
７１０：凹凸部
７２０：中空部
７３０：土台
７４０：支え
７５０：取付部 100: building 110: wall 120: opening 200: shielding door 210: upper cam 220: upper guide 230: lower cam 240: lower guide 250: side cam 300: upper frame portion 310: upper support frame 320: arm 330: upper Presser 340: Upper rail 350: Drive rail 400: Drive mechanism 410: Gear 420: Rotating shaft 430: Motor 500: Lower frame portion 510: Lower support frame 520: Lower presser 530: Lower rail 540: Notch 600: Side frame Part 610: Side support frame 620: Side presser 700: Seal material 710: Concavity and convexity 720: Hollow part 730: Base 740: Support 750: Mounting part

Claims (6)

建屋の開口部を塞いでいるブローアウトパネルと重ならない開位置に設けられ、前記ブローアウトパネルが開放された後に前記開口部を塞ぐように閉位置までスライド移動可能な遮蔽扉と、
前記遮蔽扉の上部を前後可動なアームで吊り下げると共に上レールで支持し、閉位置に来た前記遮蔽扉を押さえるための上押さえを有する上枠部と、
前記遮蔽扉の下部を下レールで支持し、閉位置に来た前記遮蔽扉を押さえるための下押さえを有する下枠部と、
前記遮蔽扉の側部を押さえ、閉位置に来た前記遮蔽扉を押さえるための側押さえを有する側枠部と、
前記開口部を囲むように取り付けられ、閉位置に来た前記遮蔽扉と前記開口部の隙間を密閉するためのシール材と、を備え、
前記遮蔽扉は、前記上レールを挟持するように上ガイドが設けられ、前記下レールを挟持するように下ガイドが設けられ、さらに閉位置に来たときに前記上下押さえ及び前記側押さえによって前記シール材に押されるように上下カム及び側カムが設けられ、
前記上下レールは、前記アームに吊下された前記遮蔽扉を前記シール材に押し付けたときに前記上下ガイドが抜けるように切欠きが設けられる、
ことを特徴とする遮蔽扉の気密維持機構。 A shielding door that is provided in an open position that does not overlap with the blowout panel that closes the opening of the building, and is slidable to the closed position so as to close the opening after the blowout panel is opened;
An upper frame part having an upper presser for holding the upper part of the shielding door and supporting the upper door with an upper rail and holding the shielding door which has come to the closed position, while being suspended by an arm movable back and forth,
A lower frame portion supporting a lower part of the shielding door with a lower rail and having a lower presser for pressing the shielding door that has come to a closed position;
A side frame having a side press for pressing the side of the shielding door and holding the shielding door in the closed position;
The sealing door is attached so as to surround the opening, and includes a sealing material for sealing a gap between the shielding door that has come to a closed position and the opening,
The shielding door is provided with an upper guide so as to sandwich the upper rail, and is provided with a lower guide so as to sandwich the lower rail. Upper and lower cams and side cams are provided to be pushed by the sealing material,
The upper and lower rails are provided with cutouts so that the upper and lower guides come out when the shielding door suspended from the arm is pressed against the sealing material.
The airtight maintenance mechanism of the shielding door characterized by this. 前記上枠部は、前記遮蔽扉を開位置から閉位置からスライド移動させるための駆動機構を備える、
ことを特徴とする請求項１に記載の遮蔽扉の気密維持機構。 The upper frame portion includes a drive mechanism for sliding the shielding door from an open position to a closed position.
The airtight maintenance mechanism for a shielding door according to claim 1. 前記上下カム及び上下押さえは、前記開口部の左端から右端まで複数が間欠的に設けられ、前記側枠部に向かうにしたがって前記開口部に近付くように前後方向にずれて配置される、
ことを特徴とする請求項１又は２に記載の遮蔽扉の気密維持機構。 A plurality of the upper and lower cams and the upper and lower pressers are provided intermittently from the left end to the right end of the opening, and are shifted in the front-rear direction so as to approach the opening as it goes toward the side frame.
The airtight maintenance mechanism of the shielding door according to claim 1 or 2. 前記上下カム及び側カムは、前記側枠部よりも中央側が厚くなるように傾斜面を有しており、当該傾斜面が前記上下押さえ及び側押さえに載ることで、前記遮蔽扉が前記シール材に押し付けられる、
ことを特徴とする請求項１乃至３の何れか一に記載の遮蔽扉の気密維持機構。 The upper and lower cams and the side cam have an inclined surface so that the center side is thicker than the side frame portion, and the inclined door is placed on the upper and lower pressers and the side presser so that the shielding door becomes the sealing material. Pressed against,
The airtight maintenance mechanism for a shielding door according to any one of claims 1 to 3. 前記シール材は、内部が中空で表面に複数の凹凸が並設された、
ことを特徴とする請求項１乃至４の何れか一に記載の遮蔽扉の気密維持機構。 The sealing material has a hollow interior and a plurality of irregularities arranged in parallel on the surface.
The airtight maintenance mechanism of the shielding door according to any one of claims 1 to 4. 請求項１乃至５の何れか一に記載の気密維持機構を備える、
ことを特徴とする遮蔽扉。 The airtight maintenance mechanism according to any one of claims 1 to 5 is provided.
Shield door characterized by that.
JP2018115772A 2018-06-19 2018-06-19 Airtight maintenance mechanism of shielding door Active JP6430055B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018115772A JP6430055B1 (en) 2018-06-19 2018-06-19 Airtight maintenance mechanism of shielding door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018115772A JP6430055B1 (en) 2018-06-19 2018-06-19 Airtight maintenance mechanism of shielding door

Publications (2)

Publication Number Publication Date
JP6430055B1 true JP6430055B1 (en) 2018-11-28
JP2019219230A JP2019219230A (en) 2019-12-26

Family

ID=64480543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018115772A Active JP6430055B1 (en) 2018-06-19 2018-06-19 Airtight maintenance mechanism of shielding door

Country Status (1)

Country Link
JP (1) JP6430055B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6588182B1 (en) * 2019-04-25 2019-10-09 株式会社日立パワーソリューションズ Door body closing device
JP6821884B1 (en) * 2020-09-25 2021-01-27 株式会社日立プラントコンストラクション Door closing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7388960B2 (en) 2020-03-24 2023-11-29 日立Ｇｅニュークリア・エナジー株式会社 Opening device and opening closing system
KR102526336B1 (en) * 2020-09-23 2023-04-27 주식회사 제이켐 Air leakage prevention device of windows closer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516341A (en) * 1974-07-05 1976-01-19 Kohan Sendan Kikai Kk KIMITSUTO BIRASOCHI
JPS6126877U (en) * 1984-07-24 1986-02-18 鈴木シヤツタ−工業株式会社 Sliding airtight door device
JPS61201491U (en) * 1985-06-07 1986-12-17
JPH01168691U (en) * 1988-05-11 1989-11-28
JPH1171955A (en) * 1997-08-29 1999-03-16 Nippon Benetsukusu:Kk Sliding door of steering house for ship
JP6165587B2 (en) * 2013-10-22 2017-07-19 清水建設株式会社 Blowout panel opening device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516341A (en) * 1974-07-05 1976-01-19 Kohan Sendan Kikai Kk KIMITSUTO BIRASOCHI
JPS6126877U (en) * 1984-07-24 1986-02-18 鈴木シヤツタ−工業株式会社 Sliding airtight door device
JPS61201491U (en) * 1985-06-07 1986-12-17
JPH01168691U (en) * 1988-05-11 1989-11-28
JPH1171955A (en) * 1997-08-29 1999-03-16 Nippon Benetsukusu:Kk Sliding door of steering house for ship
JP6165587B2 (en) * 2013-10-22 2017-07-19 清水建設株式会社 Blowout panel opening device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6588182B1 (en) * 2019-04-25 2019-10-09 株式会社日立パワーソリューションズ Door body closing device
JP6821884B1 (en) * 2020-09-25 2021-01-27 株式会社日立プラントコンストラクション Door closing device

Also Published As

Publication number Publication date
JP2019219230A (en) 2019-12-26

Similar Documents

Publication Publication Date Title
JP6430055B1 (en) Airtight maintenance mechanism of shielding door
JP6494849B1 (en) Shield door
CN101878281B (en) Mechanism for automatable latching of doors, door bodies or door frames of horizontal coke oven chambers
US4673100A (en) Equipment enclosure fastening means
JP6588182B1 (en) Door body closing device
KR101942711B1 (en) Blade Sealing Device for Guillotine Damper
JP6494850B1 (en) Shield door
US1871834A (en) Quick opening and closing door for retorts and the like
US4474205A (en) Sliding blade apparatus for closing conduits
CA2071487C (en) Shutter device for pressure containers
JP2018128333A (en) Filter replacement device and filter replacement method
JP6949264B1 (en) Blowout panel device
US3382895A (en) Sequentially operated plural valves for gas duct
CN111022029A (en) Automatic installation and replacement device for logging radioactive source
US2423975A (en) Bell type gassing and vacuumizing apparatus for dehydrated products
JP2019086377A (en) Blowout device
CN209650639U (en) A kind of vacuum sealer with upper sealing structure
JP6547085B1 (en) Closing device
JPH0377097A (en) Blow out panel device
EP1739262B1 (en) Sliding door comprising a hermetic closure device which is intended to withstand internal pressure
CN215827586U (en) Garbage storehouse sealing door of unloading
WO2018120275A1 (en) Oil-proof sealing structure for slide bar, and range hood using structure
JP3034803B2 (en) Damper driving method and its driving device
CN210830451U (en) Device for ensuring the tightness of a vacuum chamber
CN210036779U (en) Instrument box with observation window

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180619

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20180619

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20180731

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180809

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180823

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20181002

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20181030

R150 Certificate of patent or registration of utility model

Ref document number: 6430055

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250