JP2017122385A

JP2017122385A - Door opening/closing device

Info

Publication number: JP2017122385A
Application number: JP2017076667A
Authority: JP
Inventors: 勉河西; Tsutomu Kasai; 小澤　俊晴; Toshiharu Ozawa; 俊晴小澤
Original assignee: Itoki Corp
Current assignee: Itoki Corp
Priority date: 2017-04-07
Filing date: 2017-04-07
Publication date: 2017-07-13
Anticipated expiration: 2037-04-07
Also published as: JP6288346B2

Abstract

PROBLEM TO BE SOLVED: To provide a door opening/closing device which can open a door provided in a skeleton opening of a structure and turned into the lock state at the time of full-close simultaneously with releasing of lock by an operation from the outside at the time of emergency.SOLUTION: A door opening/closing device in which a door 3 capable of opening/closing a skeleton opening of a structure is provided, the end of a shaft 36 is arranged so as to face an attachment hole 39 provided on the outside of the door, the end of the shaft is provided with a handle 35 in a detachable manner, and the door is moved to perform the opening/closing operation by the rotational operation of the handle attached to the shaft includes: a lock mechanism 19 which makes door opening impossible at the time of full-close of the door. The lock mechanism includes: energization means which energizes so as to release lock; and a latch 33 which maintains the lock state against the energization force. An operation member 45 provided in the vicinity of the end of the shaft is displaced by the attachment operation of the handle to the shaft and releases the lock state by transmitting displacement of the operation member to the latch.SELECTED DRAWING: Figure 6

Description

本発明は、扉の開閉装置に係わり、更に詳しくは構造物の躯体開口に設けられ、竜巻や台風、若しくは爆風による飛来物あるいは飛行機など飛翔体の衝撃力、更に津波等による波圧・水圧、地震力に耐え得る扉の開閉装置に関するものである。 The present invention relates to a door opening and closing device, and more particularly, provided in a housing opening of a structure, tornadoes, typhoons, flying objects such as blasts or impact force of flying objects such as airplanes, wave pressure / water pressure due to tsunami, etc. The present invention relates to a door opening and closing device capable of withstanding seismic force.

近年、構造物の躯体開口に設けられ、竜巻や台風、若しくは爆風による飛来物あるいは飛行機など飛翔体の衝撃力、更に津波等による波圧・水圧、地震力に耐え得る扉に対する需要が増加している。通常、この種の防護扉は、耐衝撃強度を高めるため重量が非常に重くなっており、重量扉とも呼ばれる。躯体開口に対する防護扉の設置形態としては、ヒンジにて片持ち状態で回動開閉する回動式と、躯体開口と平行方向にスライド開閉する横引き式とがあり、回動式は構造物の外側へ回動変位して躯体開口を開放し、横引き式は構造物の内側でスライド変位して躯体開口を開放する。 In recent years, there has been an increasing demand for doors that can withstand the impact force of flying objects such as tornados, typhoons, or blasts, or flying objects such as airplanes, as well as wave pressure, water pressure, and seismic force caused by tsunamis. Yes. Usually, this type of protective door is very heavy in order to increase the impact strength and is also called a heavy door. There are two types of installation of the protective door for the chassis opening: a pivoting system that opens and closes in a cantilevered manner with a hinge, and a horizontal pulling system that slides in and out in a direction parallel to the chassis opening. The housing opening is opened by rotating and moving outward, and the lateral pulling type slides and displaces inside the structure to open the housing opening.

通常、この種の防護扉は重量が非常に重いので、電動モータで開閉駆動されるようになっている。また、セキュリティのため、全閉状態の防護扉は、建物の内部で操作できるロック機構によってロックされている。正常時には、他の出入口から作業者が建物内部に入り、ロックを解除し、制御盤を操作して防護扉を開閉するようになっている。ところが、非常時や緊急時で、電源を喪失した場合には、外部からの手動操作で防護扉を開く必要性が出てくる。 Normally, this type of protective door is very heavy, and is thus opened and closed by an electric motor. For security purposes, the fully closed protective door is locked by a lock mechanism that can be operated inside the building. Under normal conditions, an operator enters the building from another doorway, releases the lock, and operates the control panel to open and close the protective door. However, when the power supply is lost in an emergency or emergency, it is necessary to open the protective door by manual operation from the outside.

特許文献１には、開口の上方に横設したレールに扉の上端に設けた車輪を吊り下げ状態とし、扉が開口に平行に移動する構造であり、扉の外側にハンドルを設け、該ハンドルの回転軸に設けたスプロケットとチェーン及び前記レールに沿って設けた一対のスプロケットとそれに巻回したチェーンとを連動させ、該チェーンに前記扉の上端を連係して、前記ハンドルを回転させて扉を横引き開閉する構造が記載されている。そして、扉の全閉状態において、Ｌ型閂が扉の戸先側に係合し、Ｌ型閂の係合を解除するレバーが扉の外側に設けられるとともに、同じく扉の外側に前記レバーの操作を不能にするダイヤル錠が設けられている。しかし、非常時に不特定の作業者がダイヤル錠の解錠番号を認識していることは期待できない。 Patent Document 1 has a structure in which a wheel provided at the upper end of a door is suspended from a rail horizontally provided above the opening, and the door moves parallel to the opening. A handle is provided on the outside of the door. A sprocket provided on the rotating shaft of the door, a chain, a pair of sprockets provided along the rail, and a chain wound around the sprocket are linked to each other, and the upper end of the door is linked to the chain, and the handle is rotated to open the door. A structure for horizontally opening and closing is described. In the fully closed state of the door, the L-shaped hook engages with the door end side of the door, and a lever for releasing the engagement of the L-shaped hook is provided on the outside of the door. A dial lock is provided to disable operation. However, it cannot be expected that an unspecified worker recognizes the unlocking number of the dial lock in an emergency.

特許文献２には、壁体の開口部の開口平面に対して直角方向に２条のレールを平行に敷設し、前記開口部を閉止する扉の下端に設けた車輪で、前記レール上を自立状態で移動可能とし、扉の外側に設けたハンドルの回転軸に連動し、スプロケットとチェーンで前記車輪を回転駆動する構造が記載されている。そして、扉の内部に設けたシリンダ錠のキーの差込口を該扉の外側に位置させ、シリンダ錠のキーを差し込み回転させると、係合部材が前記ハンドルの回転軸に設けた制動輪の周面の切欠に係合して、該ハンドルを回転不能とする施錠構造が設けられている。この場合も、ハンドルを回転させて扉を開くには、シリンダ錠にキーを差し込まなければならず、非常時に不特定の作業者がキーを所持していることは期待できない。 In Patent Document 2, two rails are laid in parallel to the opening plane of the opening of the wall in parallel to each other, and the wheel is provided on the lower end of the door that closes the opening, and the rail is self-supported. A structure is described in which the wheel is rotated by a sprocket and a chain in conjunction with a rotating shaft of a handle provided outside the door. Then, when the cylinder lock key insertion port provided inside the door is positioned outside the door and the cylinder lock key is inserted and rotated, the engaging member of the brake wheel provided on the rotating shaft of the handle is A locking structure is provided that engages with a notch on the peripheral surface to make the handle unrotatable. In this case as well, in order to rotate the handle and open the door, the key must be inserted into the cylinder lock, and it is not expected that an unspecified worker possesses the key in an emergency.

特開昭５８−１５０６９１号公報Japanese Patent Laid-Open No. 58-150691 実公昭５７−３６７９１号公報Japanese Utility Model Publication No.57-36791

そこで、本発明が前述の状況に鑑み、解決しようとするところは、構造物の躯体開口に設けられ、全閉時にロック状態の扉を、非常時に外部からの操作でロックを解除すると同時に開扉することが可能である扉の開閉装置を提供する点にある。 Therefore, in view of the above-described situation, the present invention intends to solve the problem that the door provided in the structural body opening is locked when fully closed, and the door is opened at the same time when the lock is released by an external operation in an emergency. It is in providing a door opening and closing device that can be used.

本発明は、前述の課題解決のために、以下に構成する扉の開閉装置を提供する。 In order to solve the above-mentioned problems, the present invention provides a door opening and closing device configured as follows.

（１）
構造物の躯体開口を開閉可能な扉を設け、該扉の外側に設けた装着孔にシャフトの端部を臨ませて配置し、該シャフトの端部に着脱可能なハンドルを備え、前記シャフトに装着したハンドルの回転操作によって前記扉が移動して開閉動作する扉の開閉装置であって、前記扉が全閉時に開扉不能とするロック機構を備え、該ロック機構にはロックが解除するように付勢する付勢手段と、その付勢力に抗してロック状態を維持するラッチを備え、前記シャフトの端部近傍に設けた作動部材が、前記ハンドルの前記シャフトへの装着動作によって変位し、該作動部材の変位を前記ラッチに伝達してロック状態を解除することを特徴とする扉の開閉装置。 (1)
A door capable of opening and closing the housing opening of the structure is provided, and an end of the shaft is disposed facing a mounting hole provided on the outside of the door, and a detachable handle is provided on the end of the shaft. A door opening and closing device that opens and closes when the door is moved by rotating a mounted handle, and includes a lock mechanism that prevents the door from being opened when the door is fully closed, so that the lock is released. And an actuating member provided in the vicinity of the end of the shaft is displaced by the mounting operation of the handle to the shaft. A door opening and closing device that releases the lock state by transmitting the displacement of the operating member to the latch.

（２）
前記扉は、構造物の躯体開口の内側に沿って開閉可能な横引き式であり、床面の敷居部には走行レールを敷設し、また鴨居部にはガイドレールを固定し、前記扉の両側には駆動部を設け、該駆動部の下端にそれぞれ設けた車輪を、前記走行レール上を転動させるとともに、前記扉の本体上端に設けた垂直回転軸を有するガイドローラを前記ガイドレールで該扉が面外方向へ変位しないように転動案内してなり、前記ハンドルの回転操作によって前記車輪を回転駆動してなる（１）記載の扉の開閉装置。 (2)
The door is a lateral pulling type that can be opened and closed along the inside of the structure opening of the structure, a running rail is laid on the floor sill, a guide rail is fixed to the head part, and the door Drive units are provided on both sides, and wheels provided at the lower ends of the drive units roll on the running rail, and guide rollers having a vertical rotation shaft provided at the upper end of the door body are provided on the guide rails. The door opening and closing device according to (1), wherein the door is rolled and guided so as not to be displaced in an out-of-plane direction, and the wheel is driven to rotate by a rotation operation of the handle.

（３）
前記シャフトの端部には、直径方向に係合ピンが突設され、前記ハンドルは、中心部に前記シャフトの端部を受け入れる円筒部を有し、該円筒部には前記係合ピンを係合する切欠部を直径位置に設けている（１）又は（２）記載の扉の開閉装置。 (3)
An engagement pin projects from the end of the shaft in the diametrical direction, and the handle has a cylindrical portion that receives the end of the shaft at the center, and the engagement pin is engaged with the cylindrical portion. The door opening and closing device according to (1) or (2), wherein a notch to be joined is provided at a diameter position.

（４）
前記シャフトの端部近傍で、前記装着孔に連続する空間部内に、作動部材を前記シャフトの軸と直交する方向の支軸にて回動可能に設け、前記作動部材は、前記ハンドルの前記シャフトへの装着時に押し込まれる押圧片と前記支軸を中心として反対側に作用片を設けた構造であり、前記押圧片の先端部を前記シャフトの近傍に配置し、前記作用片の先端部にはシース付きワイヤーの一端部が連結され、該シース付きワイヤーの他端は前記ラッチを解除する部分に連結されている（１）〜（３）何れか１に記載の扉の開閉装置。 (4)
In the vicinity of the end of the shaft, an operating member is provided in a space continuous with the mounting hole so as to be rotatable on a support shaft in a direction orthogonal to the axis of the shaft, and the operating member is provided on the shaft of the handle. A pressing piece to be pushed when mounted on the support shaft and a working piece on the opposite side with the support shaft as the center, the tip of the pressing piece is arranged in the vicinity of the shaft, One end part of the wire with a sheath is connected, The other end of this wire with a sheath is connected with the part which cancels | releases the said latch, The opening / closing apparatus of the door of any one of (1)-(3).

（５）
前記ロック機構は、床面に設けた係合穴に、ロックピンが落とし込み係合する構造であり、前記ロックピンは、上端にロッドが連結され、筐体内に昇降案内されており、前記付勢手段として、筐体上部に設けた定滑車に巻回したワイヤーの一端を前記ロッドの上端に連結し、該ワイヤーの他端をカウンターウェイトに連結し、前記定滑車に対してカウンターウェイト側の総重量が重くなるように設定し、前記ロックピンを前記係合穴に係合させた状態で、該ロッドに側設した係合部を筐体に設けた前記ラッチに係止して、ロック状態を維持してなる（１）〜（４）何れか１に記載の扉の開閉装置。 (5)
The lock mechanism has a structure in which a lock pin is dropped and engaged in an engagement hole provided on a floor surface. The lock pin is connected to a rod at an upper end and is guided up and down in a housing, and the urging force is As a means, one end of a wire wound around a fixed pulley provided in the upper part of the housing is connected to the upper end of the rod, the other end of the wire is connected to a counterweight, and the total weight on the counterweight side with respect to the fixed pulley is connected. With the weight set to be heavy, with the lock pin engaged with the engagement hole, the engagement portion provided on the rod is engaged with the latch provided on the housing, and locked. The door opening and closing device according to any one of (1) to (4).

以上にしてなる本発明の扉の開閉装置は、以下に示す効果を奏する。 The door opening and closing device of the present invention configured as described above has the following effects.

（１）の構成によれば、非常時に扉の外部から手動操作用のハンドルを、シャフトの端部に装着するだけで、全閉時にロック状態にある扉のロックを解除することができ、続いてハンドルを操作してシャフトを回転させれば、扉を移動させることができる。 According to the configuration of (1), in the event of an emergency, it is possible to unlock the door that is locked when fully closed by simply attaching a handle for manual operation from the outside of the door to the end of the shaft. If the handle is operated and the shaft is rotated, the door can be moved.

（２）の構成によれば、重量の重い扉でもハンドルによる手動操作によって開閉することができる。 According to the configuration of (2), even a heavy door can be opened and closed manually by a handle.

（３）の構成によれば、信頼性の高い簡単な構造でハンドルをシャフトの端部に装着して、ハンドルの操作によりシャフトを正逆どちらにも回転させることができる。 According to the configuration of (3), the handle can be attached to the end of the shaft with a simple structure with high reliability, and the shaft can be rotated forward or backward by operating the handle.

（４）の構成によれば、ハンドルをシャフトに装着する際に作動部材が支軸を中心に回転する簡単な構造によって、該作動部材の変位をシース付きワイヤーでロック状態を維持するラッチに伝達し、ロックを解除することができる。 According to the configuration of (4), the displacement of the operating member is transmitted to the latch that maintains the locked state with the sheathed wire by a simple structure in which the operating member rotates around the support shaft when the handle is mounted on the shaft. And can be unlocked.

（５）の構成によれば、ロック機構は、床面に設けた係合穴に、ロックピンが落とし込み係合する構造であるので、扉の移動を確実に規制することができて、ロック状態が安定であり、またラッチが解除されたときにはカウンターウェイトの重量によってロックピンが係合穴から自動的に抜けるので、停電時にも確実に動作する。 According to the structure of (5), since the lock mechanism has a structure in which the lock pin is dropped into the engagement hole provided in the floor surface, the movement of the door can be surely restricted, and the locked state Is stable, and when the latch is released, the lock pin is automatically removed from the engagement hole by the weight of the counterweight, so that it operates reliably even in the event of a power failure.

本発明に係る防護扉と建物の躯体開口との関係を示し、建物内部から見た正面図である。It is the front view which showed the relationship between the protective door which concerns on this invention, and the housing opening of a building, and was seen from the inside of a building. 同じく横断平面図である。Similarly, it is a cross-sectional plan view. 同じく縦断側面図である。It is a longitudinal side view similarly. 従動駆動部における縦断側面図である。It is a vertical side view in a driven drive part. 同じく従動駆動部における縦断正面図である。It is a longitudinal front view in a driven drive part similarly. ハンドルとロック機構を構成するラッチの連動構造を示す簡略横断面図である。It is a simplified cross-sectional view showing the interlocking structure of the latch constituting the handle and the lock mechanism. ハンドルを装着した状態の拡大横断面図である。It is an expanded transverse sectional view of the state where a handle was attached. ロック機構の一部を示す部分縦断正面図である。It is a partial vertical front view which shows a part of lock mechanism. 電動駆動部における縦断正面図である。It is a vertical front view in an electric drive part. 同じく電動駆動部における縦断側面図である。It is the vertical side view in an electric drive part similarly. 受圧装置を備えた防護扉を建物内部から見た正面図である。It is the front view which looked at the protective door provided with the pressure receiving apparatus from the inside of a building. 受圧装置の簡略平面図である。It is a simplified top view of a pressure receiving device. （ａ）〜（ｄ）は防護扉の閉止過程における受圧装置の関係を示す簡略平面図である。(A)-(d) is a simplified top view which shows the relationship of the pressure receiving apparatus in the closing process of a protective door. 図１１のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図１１のＢ−Ｂ線断面図である。It is the BB sectional drawing of FIG. 図１１のＣ−Ｃ線断面図である。It is CC sectional view taken on the line of FIG. 図１１のＤ−Ｄ線断面図である。It is the DD sectional view taken on the line of FIG. 扉側受圧ブロックの取付構造を示す部分横断平面図である。It is a partial cross-sectional top view which shows the attachment structure of a door side pressure receiving block.

次に、添付図面に示した実施形態に基づき、本発明を更に詳細に説明する。図１〜図３は、本発明に係る扉の例としての防護扉と構造物の例としての建物の躯体開口の周辺構造を示し、図中符号１は建物、２は躯体開口、３は防護扉、４は走行レール、５はガイドレール、６は車輪、７はガイドローラをそれぞれ示している。 Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. 1 to 3 show a peripheral structure of a protective door as an example of a door according to the present invention and a building opening of a building as an example of a structure. In FIG. A door, 4 is a running rail, 5 is a guide rail, 6 is a wheel, and 7 is a guide roller.

本発明に係る構造物として、代表的には建物が挙げられるが、建物以外でも津波や高潮用の防波堤、防潮堤や重要施設の塀等の開口を備えた構造物にも適用可能である。また、構造物の躯体開口を開閉する扉も大型扉であれば本発明を採用し得る。以下の実施形態では、建物の躯体開口に設ける防護扉を例に説明する。 A typical example of the structure according to the present invention is a building, but the present invention can also be applied to a structure provided with an opening such as a tsunami, a storm surge breakwater, a tide embankment, or an important facility ridge. Moreover, if the door which opens and closes the housing opening of a structure is also a large door, this invention can be employ | adopted. In the following embodiments, a protective door provided at a building opening of a building will be described as an example.

本実施形態に係る建物１は、例えば原子力発電施設に配置される非常用電源車両を格納しておくものであり、高い安全性が担保されている。このような建物１の躯体開口２は、前述の大型特殊車両がスムーズに出入りできるように、例えば横幅６ｍ、高さ４ｍと非常に広く設定されている。その躯体開口２を全閉可能な防護扉３の大きさは、躯体開口２よりも若干大きく設定され、また厚さは竜巻や台風、若しくは爆風による飛来物の衝撃に耐え得るように５０ｃｍに設定されている。 The building 1 according to the present embodiment stores, for example, an emergency power supply vehicle disposed in a nuclear power generation facility, and high safety is ensured. The housing opening 2 of the building 1 is set to be very wide, for example, a width of 6 m and a height of 4 m so that the above-mentioned large special vehicle can enter and exit smoothly. The size of the protective door 3 that can fully close the housing opening 2 is set to be slightly larger than that of the housing opening 2, and the thickness is set to 50 cm so that it can withstand the impact of a tornado, a typhoon, or a blast. Has been.

ここで、前記躯体開口２の内側に沿って、床面Ｆの敷居部には上方へ突出しないように２本の走行レール４，４を敷設し、また鴨居部には奥行方向に所定間隔を設けて２本のガイドレール５，５を固定している。そして、前記防護扉３の両側には駆動部を設け、該駆動部の下端にそれぞれ一対の車輪６，６を設けて前記走行レール４，４上を転動させる。更に、前記防護扉３の本体上端に垂直回転軸を有するガイドローラ７，…を複数個設け、該ガイドローラ７を前記ガイドレール５，５間で転動させ，該防護扉３が面外方向へ変位しないようにしている。尚、本実施形態では、両端部をガイドローラ７，７とし、中間部をガイドブロック７Ａ，…としている。 Here, along the inside of the housing opening 2, two traveling rails 4, 4 are laid on the sill portion of the floor F so as not to protrude upward, and the moss portion has a predetermined interval in the depth direction. The two guide rails 5 and 5 are fixed. And a drive part is provided in the both sides of the said protective door 3, and a pair of wheels 6 and 6 are provided in the lower end of this drive part, respectively, and it rolls on the said travel rails 4 and 4. FIG. Further, a plurality of guide rollers 7,... Having a vertical rotation shaft are provided at the upper end of the main body of the protective door 3, and the guide roller 7 is rolled between the guide rails 5, 5, so that the protective door 3 is in an out-of-plane direction. Is not displaced. In this embodiment, both end portions are guide rollers 7 and 7, and an intermediate portion is a guide block 7A.

前記防護扉３は、図１及び図３に示すように、アングル材、断面コ字形材又は断面ロ字形材等の鋼材を格子状に組み合わせ溶接して構成した箱型フレーム８に、ステンレス板等の外殻板９を固定して直方体形状に構成したものであり、内部には鉄筋１０を複配筋構造で設けるとともに、コンクリートを打設し、硬化させた構造のものであり、例えば全体の概算重量は４６ｔｏｎである。前記防護扉３の戸尻側の側面下部には、電動駆動部１１を設け、該電動駆動部１１の下端には駆動車輪６Ａ，６Ａを設けている。一方、前記防護扉３の戸先側の側面下部には、従動駆動部１２を設け、該従動駆動部１２の下端には従動車輪６Ｂ，６Ｂを設けている。 As shown in FIGS. 1 and 3, the protective door 3 is made of a stainless steel plate or the like on a box-shaped frame 8 formed by welding steel materials such as an angle material, a U-shaped cross-section material, or a cross-section-shaped material in a lattice shape. The outer shell plate 9 is fixed to form a rectangular parallelepiped shape, and a rebar 10 is provided in a double bar structure inside, and concrete is cast and hardened. The approximate weight is 46 tons. An electric drive unit 11 is provided at the lower part of the side of the protective door 3 on the door butt side, and drive wheels 6A and 6A are provided at the lower end of the electric drive unit 11. On the other hand, a driven drive unit 12 is provided at the lower side of the protective door 3 on the door end side, and driven wheels 6B and 6B are provided at the lower end of the driven drive unit 12.

通常は、前記防護扉３の開閉は、建物１の内部の制御盤１３を操作して、前記電動駆動部１１の内部に設けた後述の電動モータを動力とする。尚、電動モータの他に油圧・空圧アクチュエータを用いることも可能である。しかし、非常時には停電が起こることも想定していなければならず、その場合には手動で前記防護扉３を開く必要がある。以下に前記防護扉３の開閉機構を詳細に説明する。 Normally, the protective door 3 is opened and closed by operating a control panel 13 in the building 1 and using an electric motor (described later) provided in the electric drive unit 11 as power. In addition to the electric motor, a hydraulic / pneumatic actuator can be used. However, it must be assumed that a power failure occurs in an emergency, and in that case, it is necessary to open the protective door 3 manually. Hereinafter, the opening / closing mechanism of the protective door 3 will be described in detail.

先ず、図３に示すように、前記床面Ｆの敷居部には、上方開放した箱型のピット１４が埋設され、該ピット１４の内部に前記走行レール４，４が所定の間隔で平行に敷設されている。前記ピット１４は、底板１５と側板１６とからなっている。一方、建物１の鴨居部には、横梁１７に所定間隔でブラケット１８，…を取付け、該ブラケット１８，…の下面側に、奥行方向に一定の間隔を設けて前記ガイドレール５，５を固定している。この２本のガイドレール５，５間に前記防護扉３の上端に設けた前記ガイドローラ７，…が位置して、面外方向の変位を規制した状態で、前記走行レール４，４に沿って駆動輪６Ａ，６Ａと従動車輪６Ｂ，６Ｂが転動して、前記防護扉３を横引き開閉可能に支持している。 First, as shown in FIG. 3, a box-shaped pit 14 opened upward is embedded in the sill portion of the floor surface F, and the traveling rails 4 and 4 are parallel to each other at a predetermined interval in the pit 14. It is laid. The pit 14 includes a bottom plate 15 and a side plate 16. On the other hand, brackets 18,... Are attached to the cross beam 17 at predetermined intervals in the duck part of the building 1, and the guide rails 5, 5 are fixed to the lower surfaces of the brackets 18,. doing. The guide rollers 7,... Provided at the upper end of the protective door 3 are positioned between the two guide rails 5, 5, and along the traveling rails 4, 4 in a state where displacement in the out-of-plane direction is restricted. Thus, the drive wheels 6A and 6A and the driven wheels 6B and 6B roll to support the protective door 3 so that it can be opened and closed laterally.

また、前記防護扉３には、図１、図３〜図６に示すように、前記躯体開口２を閉鎖した全閉時と、前記躯体開口２を開放した全開時に移動をロックするロック機構１９が前記従動駆動部１２に備わっている。このロック機構１９は、床面Ｆに設けた係合穴２０に、正確には前記ピット１４内の走行レール４，４の間に設けた係合穴２０に、ロックピン２１が落とし込み係合する構造である。ロックを解除するには、前記ロックピン２１を上昇させて前記係合穴２０から抜くことで行うといったシンプルな機構である。 As shown in FIGS. 1 and 3 to 6, the protective door 3 has a lock mechanism 19 that locks movement when the housing opening 2 is fully closed and when the housing opening 2 is fully opened. Is provided in the driven drive unit 12. In this lock mechanism 19, the lock pin 21 is dropped into and engaged with the engagement hole 20 provided in the floor surface F, more precisely, the engagement hole 20 provided between the traveling rails 4 and 4 in the pit 14. Structure. To release the lock, the lock pin 21 is lifted and removed from the engagement hole 20.

具体的には、前記係合穴２０は、前記ピット１４内の底板１５に固定したブロック２２に上方開放した状態で形成されている。また、前記ロックピン２１は、上端にロッド２３が連結されており、前記従動駆動部１２の下端に設けた前記従動車輪６Ｂ，６Ｂの軸受部２４に設けたガイド孔２５に上下貫通させて昇降案内している。ここで、前記ロックピン２１とロッド２３の合計重量はかなり重くなるので、前記従動駆動部１２の筐体上部に設けた定滑車２６に巻回したワイヤー２７の一端を前記ロッド２３の上端に連結し、ワイヤーの他端をカウンターウェイト２８に連結している。尚、前記カウンターウェイト２８の下端に垂下したガイドロッド２９を前記従動駆動部１２の筐体下部に形成した垂直なガイド孔３０に嵌挿して、安定に昇降するように案内している。ここで、前記定滑車２６に対してカウンターウェイト２８側の総重量が重くなるように設定している。そして、通常、前記ロック機構１９はロック状態にするので、前記ロッド２３の作業者が操作し易い高さに設けた把手３１を持って前記ロッド２３を引き下げて、前記ロックピン２１を前記係合穴２０に係合させた状態で、該ロッド２３に側設した係合部３２を筐体に設けたラッチ３３に係止して、ロック状態を維持する。 Specifically, the engagement hole 20 is formed in an open state in a block 22 fixed to the bottom plate 15 in the pit 14. The lock pin 21 is connected to a rod 23 at the upper end, and is moved up and down through a guide hole 25 provided in the bearing portion 24 of the driven wheels 6B and 6B provided at the lower end of the driven drive portion 12. I am guiding you. Here, since the total weight of the lock pin 21 and the rod 23 becomes considerably heavy, one end of the wire 27 wound around the fixed pulley 26 provided on the upper part of the casing of the driven drive unit 12 is connected to the upper end of the rod 23. The other end of the wire is connected to the counterweight 28. A guide rod 29 suspended from the lower end of the counterweight 28 is inserted into a vertical guide hole 30 formed in the lower part of the casing of the driven drive unit 12 to guide the guide weight 29 so as to move up and down stably. Here, the total weight on the counterweight 28 side is set so as to be heavier than the fixed pulley 26. Usually, since the lock mechanism 19 is in a locked state, the rod 23 is pulled down with a handle 31 provided at a height at which the operator of the rod 23 can easily operate, and the lock pin 21 is engaged. In the state of being engaged with the hole 20, the engaging portion 32 provided on the side of the rod 23 is engaged with the latch 33 provided in the housing, and the locked state is maintained.

前記ラッチ３３は、前記係合部３２としての水平な棒が上方から押し込まれると係合し、水平方向に設けた解除棒３４を押し込むと、当該ラッチ３３が解除されて、前記カウンターウェイト２８の重みによって、前記ロックピン２１が自動的に上昇して前記係合穴２０から抜けて、ロックが解除されるのである。前記従動駆動部１２は、建物１の内側に位置するので、前記解除棒３４も建物１の内部から操作することになる。 The latch 33 is engaged when a horizontal bar as the engaging portion 32 is pushed in from above, and when the release bar 34 provided in the horizontal direction is pushed in, the latch 33 is released and the counterweight 28 Due to the weight, the lock pin 21 automatically rises and comes out of the engagement hole 20, and the lock is released. Since the driven drive unit 12 is located inside the building 1, the release rod 34 is also operated from the inside of the building 1.

ところが、緊急時には建物１の外部から手動で前記防護扉３を開けることが必要になる。そのような場合、前記防護扉３の戸先側の表側に手動操作用のハンドル３５を装着し、該ハンドル３５を回転させて前記電動駆動部１１の減速機構を利用して駆動車輪６Ａ，６Ａを回転させることができなければならない。このような非常時には、往々にして全電源が喪失していることが想定され、前記電動駆動部１１の電動モータに頼らずに駆動しなければならない。その際に、前記ロック機構１９を建物１の外部からロックを解除する必要がある。本発明に係る防護扉３には、前記ハンドル３５を前記防護扉３の戸先側の表側に装着すると自動的に前記ロック機構１９のロックが解除できるワンアクション開扉システムが備わっている。 However, it is necessary to manually open the protective door 3 from the outside of the building 1 in an emergency. In such a case, a handle 35 for manual operation is attached to the front side of the door end side of the protective door 3, and the drive wheel 6A, 6A is rotated by using the speed reduction mechanism of the electric drive unit 11 by rotating the handle 35. Must be able to rotate. In such an emergency, it is often assumed that the entire power supply has been lost, and it must be driven without relying on the electric motor of the electric drive unit 11. At that time, it is necessary to unlock the lock mechanism 19 from the outside of the building 1. The protective door 3 according to the present invention includes a one-action door opening system that can automatically unlock the lock mechanism 19 when the handle 35 is mounted on the front side of the protective door 3.

前記ワンアクション開扉システムを図５〜図８に基づいて説明する。前記防護扉３の戸先側に、奥行方向に水平にシャフト３６が軸受３７，３７にて回転可能に支持されている。前記防護扉３の内部にはコンクリートが打設されるため、前記シャフト３６は円筒形のシース３８で覆われ、該シャフト３６の一方の端部は表側の外殻板９に設けた装着孔３９に臨み、他方の端部は裏面の外殻板９を貫通してその先端にスプロケット４０が固定されている。前記装着孔３９に臨んだ前記シャフト３６の端部には、直径方向に係合ピン４１，４１が突設されている。そして、前記ハンドル３５は、中心部に前記シャフト３６の端部を受け入れる円筒部４２を有し、該円筒部４２には前記係合ピン４１，４１を係合する切欠部４３，４３を直径位置に設けている。尚、前記切欠部４３は、前記係合ピン４１を受け入れた状態で前記ハンドル３５を回転させたときに、該係合ピン４１が円周方向に膨らんだ凹部に係合して軸方向への抜け止めを図ることができる形状となっている。 The one-action door opening system will be described with reference to FIGS. A shaft 36 is rotatably supported by bearings 37 and 37 horizontally on the door end side of the protective door 3 in the depth direction. Since concrete is placed inside the protective door 3, the shaft 36 is covered with a cylindrical sheath 38, and one end of the shaft 36 is attached to a mounting hole 39 provided in the outer shell plate 9 on the front side. The other end portion penetrates the outer shell plate 9 on the back surface, and a sprocket 40 is fixed to the tip thereof. Engagement pins 41, 41 project from the end of the shaft 36 facing the mounting hole 39 in the diametrical direction. The handle 35 has a cylindrical portion 42 for receiving the end portion of the shaft 36 at the center, and the cylindrical portion 42 has notches 43 and 43 for engaging the engaging pins 41 and 41 in a diameter position. Provided. When the handle 35 is rotated with the engagement pin 41 received, the cutout portion 43 engages with a recess that swells in the circumferential direction and moves in the axial direction. It has a shape that can prevent it from coming off.

そして、前記シャフト３６の端部近傍で、前記装着孔３９に連続する空間部４４内に、作動部材４５を前記シャフト３６の軸と直交する方向の支軸４６にて回動可能に設けている。前記作動部材４５は、押圧片４７と前記支軸４６を中心として反対側に作用片４８を設けた構造であり、前記押圧片４７の先端部を前記シャフト３６の近傍に配置し、前記作用片４８の先端部にはシース付きワイヤー４９の一端部が連結されている。シース付きワイヤー４９のシース５０の両端は所定位置に固定されている。前記ハンドル３５の円筒部４２を前記シャフト３６の端部に外挿し、前記係合ピン４１，４１を切欠部４３，４３に受け入れる動作によって、前記円筒部４２の先端で前記作動部材４５の押圧片４７が奥方向に押されて、該作動部材４５が支軸４６を中心に回転し、前記作用片４８が表側に変位し、もって前記シース付きワイヤー４９を引くことになる。 In the vicinity of the end portion of the shaft 36, the operating member 45 is provided in a space 44 continuous with the mounting hole 39 so as to be rotatable by a support shaft 46 in a direction orthogonal to the axis of the shaft 36. . The actuating member 45 has a structure in which an operating piece 48 is provided on the opposite side with the pressing piece 47 and the support shaft 46 as the center, the tip of the pressing piece 47 is disposed in the vicinity of the shaft 36, and the operating piece One end of a sheathed wire 49 is connected to the tip of 48. Both ends of the sheath 50 of the sheathed wire 49 are fixed at predetermined positions. By pushing the cylindrical portion 42 of the handle 35 into the end portion of the shaft 36 and receiving the engaging pins 41, 41 into the cutout portions 43, 43, the pressing piece of the operating member 45 at the distal end of the cylindrical portion 42. 47 is pushed in the back direction, the operating member 45 rotates about the support shaft 46, the action piece 48 is displaced to the front side, and the sheathed wire 49 is pulled.

前記シース付きワイヤー４９の他端は、前記従動駆動部１２の筐体内部で、ロッドエンドベアリング連結棒５１を介して、前記ラッチ３３の解除棒３４に連動するブラケット５２に連結されている。そのため、図７及び図８に示すように、前記ハンドル３５を前記防護扉３の戸先側の表側から前記シャフト３６に装着すると同時に、前記シース付きワイヤー４９が引かれ、前記解除棒３４が前記ラッチ３３の係合を解除する方向に変位し、ロック機構１９のロックが解除し、前記防護扉３が移動可能な状態になる。尚、前記解除棒３４が建物１の内部で押し込まれた際には、前記ブラケット５２に設けたスリット溝５３と解除棒３４の先端部に側設したピン５４との係合関係で、前記ロッドエンドベアリング連結棒５１は変位しないようになっている。 The other end of the sheathed wire 49 is connected to a bracket 52 that interlocks with the release rod 34 of the latch 33 via a rod end bearing connection rod 51 inside the housing of the driven drive unit 12. Therefore, as shown in FIGS. 7 and 8, the handle 35 is attached to the shaft 36 from the front side of the door side of the protective door 3, and at the same time, the sheathed wire 49 is pulled and the release rod 34 is The latch 33 is displaced in the direction to release the engagement, the lock mechanism 19 is unlocked, and the protective door 3 becomes movable. When the release rod 34 is pushed inside the building 1, the rod 52 is engaged with the slit groove 53 provided in the bracket 52 and the pin 54 provided on the tip of the release rod 34. The end bearing connecting rod 51 is not displaced.

次に、図９及び図１０に基づいて、前記防護扉３の駆動機構について説明する。前記電動駆動部１１は、筐体に取付けられた電動モータ５５と減速機５６の入力軸５７とがプーリ５８，５９とＶベルト６０で連動し、該減速機５６の出力軸６１に固定されたスプロケット６２と、前記駆動車輪６Ａ，６Ａの駆動軸６３に固定されたスプロケット６４とがチェーン６５で連動されている。通常は、前記電動モータ５５の回転力を、前記減速機５６を介して前記駆動車輪６Ａ，６Ａに伝達する。 Next, the drive mechanism of the protective door 3 will be described with reference to FIGS. The electric drive unit 11 is fixed to the output shaft 61 of the speed reducer 56, with the electric motor 55 attached to the housing and the input shaft 57 of the speed reducer 56 being linked by pulleys 58 and 59 and the V belt 60. A sprocket 62 and a sprocket 64 fixed to the drive shaft 63 of the drive wheels 6A, 6A are linked by a chain 65. Normally, the rotational force of the electric motor 55 is transmitted to the drive wheels 6A and 6A via the speed reducer 56.

手動で前記駆動車輪６Ａ，６Ａを回転駆動するための第１シャフト６６と第２シャフト６７とが、クラッチ機構６８を介して前記電動駆動部１１の筐体の所定高さ位置に複数の軸受６９，…で奥行方向に向けて回転可能に設けられている。前記第１シャフト６６の端部に設けたプーリ７０と、前記減速機５６の入力軸５７に設けた二連式の前記プーリ５９にＶベルト７１で連動され、また前記第２シャフト６７の端部、即ち建物１の内側に位置する端部に設けたスプロケット７２と、反対側の前記シャフト３６に設けたスプロケット４０とを、前記防護扉３の室内側に沿って配置した長尺のチェーン７３で連動させている。 A first shaft 66 and a second shaft 67 for manually rotating the drive wheels 6A, 6A are provided with a plurality of bearings 69 at a predetermined height position of the casing of the electric drive unit 11 via a clutch mechanism 68. ,... Are provided so as to be rotatable in the depth direction. The pulley 70 provided at the end of the first shaft 66 and the duplex pulley 59 provided on the input shaft 57 of the speed reducer 56 are interlocked by a V-belt 71 and the end of the second shaft 67. That is, a long chain 73 in which a sprocket 72 provided at an end located inside the building 1 and a sprocket 40 provided on the opposite shaft 36 are arranged along the indoor side of the protective door 3. It is linked.

前記電動モータ５５が電源により駆動可能なときには、前記クラッチ機構６８は切れて前記第１シャフト６６と第２シャフト６７は切り離され、該第２シャフト６７は前記電動モータ５５によって回転することがない。一方、非常時に電源が喪失した際には、前記クラッチ機構６８が連係し、前記第１シャフト６６と第２シャフト６７は一体となって回転するようになる。そこで、前記ハンドル３５を前記防護扉３の戸先側の表側にから前記シャフト３６に装着し、該ハンドル３５を回転させると、その回転力はスプロケット４０、チェーン７３、スプロケット７２、第２シャフト６７、第１シャフト６６、プーリ７０、Ｖベルト７１、減速機５６のプーリ５９から入力軸５７に伝達され、前記駆動車輪６Ａ，６Ａが回転駆動されるのである。尚、前記防護扉３の室内側に対応する前記チェーン７３は、水平方向に延びたカバー７４で覆われている。 When the electric motor 55 can be driven by a power source, the clutch mechanism 68 is disconnected, the first shaft 66 and the second shaft 67 are disconnected, and the second shaft 67 is not rotated by the electric motor 55. On the other hand, when the power is lost in an emergency, the clutch mechanism 68 is linked, and the first shaft 66 and the second shaft 67 rotate together. Therefore, when the handle 35 is mounted on the shaft 36 from the front side of the door end side of the protective door 3 and the handle 35 is rotated, the rotational force thereof is sprocket 40, chain 73, sprocket 72, second shaft 67. The first shaft 66, the pulley 70, the V-belt 71, and the pulley 59 of the speed reducer 56 are transmitted to the input shaft 57, and the drive wheels 6A and 6A are rotationally driven. The chain 73 corresponding to the indoor side of the protective door 3 is covered with a cover 74 extending in the horizontal direction.

また、前記第２シャフト６７の端部は、前記シャフト３６の端部と同じ構造になっており、つまり第２シャフト６７の端部に前記係合ピン４１，４１が設けられており、建物１の内部に入った作業者が前記ハンドル３５を前記第２シャフト６７の端部に装着して、該ハンドル３５を回転させて前記防護扉３の室内側から移動させることが可能である。 Further, the end portion of the second shaft 67 has the same structure as the end portion of the shaft 36, that is, the engaging pins 41 and 41 are provided at the end portion of the second shaft 67, and the building 1 It is possible for an operator who has entered the interior of the door to attach the handle 35 to the end of the second shaft 67 and rotate the handle 35 to move it from the indoor side of the protective door 3.

次に、前記防護扉３の全閉時に外側からの衝撃力を受ける受圧装置７５について、図１、図３、図１１〜図１８に基づいて説明する。前記受圧装置７５は、前記防護扉３が全閉時にのみ、該防護扉３の内側下端部に設けた扉側受圧ブロック７６を、前記走行レール４を取り付けた前記ピット１４等の固定部に設けた固定側受圧ブロック７７に接触状態にしたものである。つまり、金属製の扉側受圧ブロック７６と金属製の固定側受圧ブロック７７とをメタル接触させることにより、前記防護扉３の外側に作用した内向きの応力を、両ブロック７６，７７を介して床面Ｆで受けるのである。前記扉側受圧ブロック７６と固定側受圧ブロック７７は、ステンレス鋼で作成している。尚、前記防護扉３の上部にあっては、前記ガイドレール５，５間に位置するガイドローラ７，７及びガイドブロック７Ａ，７Ａで前記防護扉３の外側に作用した内向きの応力を受ける。 Next, a pressure receiving device 75 that receives an impact force from the outside when the protective door 3 is fully closed will be described with reference to FIGS. 1, 3, and 11 to 18. The pressure receiving device 75 is provided with a door side pressure receiving block 76 provided at an inner lower end portion of the protective door 3 only when the protective door 3 is fully closed at a fixed portion such as the pit 14 to which the traveling rail 4 is attached. The stationary side pressure receiving block 77 is brought into contact with the stationary side pressure receiving block 77. That is, when the metal door-side pressure receiving block 76 and the metal stationary-side pressure receiving block 77 are brought into metal contact, the inward stress acting on the outside of the protective door 3 is passed through both the blocks 76 and 77. It is received at the floor F. The door side pressure receiving block 76 and the fixed side pressure receiving block 77 are made of stainless steel. In the upper part of the protective door 3, the guide rollers 7 and 7 and the guide blocks 7A and 7A located between the guide rails 5 and 5 receive inward stress acting on the outside of the protective door 3. .

更に詳しくは、前記床面Ｆの敷居部に設けた前記ピット１４の内側の側板１６を、前記防護扉３の下端より若干高く設定し、前記扉側受圧ブロック７６は、前記防護扉３の内側の外殻板９の下端部に、下端を面一となして固定する。一方、前記固定側受圧ブロック７７は、前記ピット１４の内側の側板１６の内面、つまり建物１の外部に面した面に、上端を面一となして固定する。前記ピット１４の内側の側板１６の上端から建物１の内部へはスロープ７８が形成され、その内側には排水溝７９が形成され、前記ピット１４内に溜まった雨水等はドレイン８０を通して排水溝７９に排水するようになっている。 More specifically, the inner side plate 16 of the pit 14 provided in the sill portion of the floor surface F is set slightly higher than the lower end of the protective door 3, and the door-side pressure receiving block 76 is arranged on the inner side of the protective door 3. The outer shell plate 9 is fixed to the lower end portion of the outer shell plate 9 with the lower end being flush. On the other hand, the fixed side pressure receiving block 77 is fixed to the inner surface of the side plate 16 inside the pit 14, that is, the surface facing the outside of the building 1 with its upper end being flush. A slope 78 is formed from the upper end of the side plate 16 on the inner side of the pit 14 to the inside of the building 1, and a drainage groove 79 is formed on the inside thereof. Rainwater or the like accumulated in the pit 14 is drained through the drain 80. It is designed to be drained.

前記扉側受圧ブロック７６と固定側受圧ブロック７７の対は、躯体間口２に沿って全長に設けることが、外側からの応力を分散させる意味で好ましい。本実施形態では、前記扉側受圧ブロック７６と固定側受圧ブロック７７の対は、躯体間口２に沿って複数ヶ所、例示的には合計４ヶ所に設け、応力を分散させて受けるようにしている。前記防護扉３の内側の外殻板９と、前記ピット１４の内側の側板１６とは常に平行であり、つまり前記防護扉３の位置に係わらず一定の間隔を保っている。従って、各対の前記扉側受圧ブロック７６と固定側受圧ブロック７７の合計厚さは一定である。前記防護扉３が全閉状態から開く方向に移動した際に、前記扉側受圧ブロック７６が移動するが、他の固定側受圧ブロック７７に接触しないようにする必要がある。そのため、図１２〜図１７に示すように、戸先側から戸尻側に向けて、前記扉側受圧ブロック７６の厚さは増加し、逆に前記固定側受圧ブロック７７の厚さは減少するように設定している。前記扉側受圧ブロック７６，…の各接触面８１は同一平面、つまり同一傾斜面の一部で構成することが好ましいが、防護扉３の横幅と比較して接触面８１の横幅は十分に狭いので、前記扉側受圧ブロック７６は直方体であっても構わない。同様に、前記固定側受圧ブロック７７，…の各接触面８２は同一平面、つまり同一傾斜面の一部で構成することが好ましいが、防護扉３の横幅と比較して接触面８２の横幅は十分に狭いので、前記固定側受圧ブロック７７も直方体であっても構わない。 The pair of the door-side pressure receiving block 76 and the fixed-side pressure receiving block 77 is preferably provided over the entire length along the housing opening 2 in terms of dispersing stress from the outside. In the present embodiment, a pair of the door side pressure receiving block 76 and the fixed side pressure receiving block 77 is provided at a plurality of locations along the housing opening 2, for example, a total of 4 locations, so that the stress is distributed and received. . The outer shell plate 9 on the inner side of the protective door 3 and the side plate 16 on the inner side of the pit 14 are always parallel, that is, a constant interval is maintained regardless of the position of the protective door 3. Accordingly, the total thickness of each pair of the door-side pressure receiving block 76 and the fixed-side pressure receiving block 77 is constant. When the protective door 3 moves from the fully closed state to the opening direction, the door side pressure receiving block 76 moves, but it is necessary to prevent it from coming into contact with the other fixed side pressure receiving block 77. Therefore, as shown in FIGS. 12 to 17, the thickness of the door-side pressure receiving block 76 increases from the door end side to the door bottom side, and conversely, the thickness of the fixed-side pressure receiving block 77 decreases. It is set as follows. The contact surfaces 81 of the door-side pressure receiving blocks 76 are preferably formed of the same plane, that is, a part of the same inclined surface, but the width of the contact surface 81 is sufficiently narrow compared to the width of the protective door 3. Therefore, the door side pressure receiving block 76 may be a rectangular parallelepiped. Similarly, it is preferable that each contact surface 82 of the fixed pressure receiving blocks 77,... Is formed of the same plane, that is, a part of the same inclined surface. Since it is sufficiently narrow, the fixed side pressure receiving block 77 may also be a rectangular parallelepiped.

前記扉側受圧ブロック７６の接触面８１と固定側受圧ブロック７７の接触面８２は、両端部を面取りして、全閉時にブロックの角部が衝突しないようにしている。図１８に面取り部８３で示している。また、各部材の製造誤差や設置誤差は避けられないため、金属製のライナー８４を用いて現場でミリ単位の修正を行い、全閉時のメタル接触を実現する。また、前記扉側受圧ブロック７６の取付強度を高めるために、該扉側受圧ブロック７６を取付ける位置に対応する前記外殻板９の裏側に、補強ブロック８５を溶接して固定し、該補強ブロック８５に内方へ向いたアンカー８６を固定し、コンクリートの打設によってアンカー８６がコンクリートと一体化する。そして、前記扉側受圧ブロック７６の上部であって、前記固定側受圧ブロック７７と干渉しない位置で、ボルト８７，８７を用いて前記補強ブロック８５に締め付ける。 The contact surface 81 of the door-side pressure receiving block 76 and the contact surface 82 of the fixed-side pressure receiving block 77 are chamfered at both ends so that the corners of the block do not collide when fully closed. FIG. 18 shows a chamfer 83. In addition, since manufacturing errors and installation errors of each member are unavoidable, the metal contact is corrected on the spot using a metal liner 84 to realize metal contact when fully closed. Further, in order to increase the mounting strength of the door side pressure receiving block 76, a reinforcing block 85 is welded and fixed to the back side of the outer shell plate 9 corresponding to the position where the door side pressure receiving block 76 is attached. An anchor 86 facing inward is fixed to 85, and the anchor 86 is integrated with the concrete by placing concrete. Then, it is fastened to the reinforcing block 85 using bolts 87, 87 at a position above the door side pressure receiving block 76 and not interfering with the fixed side pressure receiving block 77.

１建物、２躯体開口、
３防護扉、４走行レール、
５ガイドレール、６車輪、
６Ａ駆動車輪、６Ｂ従動車輪、
７ガイドローラ、７Ａガイドブロック、
８箱型フレーム、９外殻板、
１０鉄筋、１１電動駆動部、
１２従動駆動部、１３制御盤、
１４ピット、１５底板、
１６側板、１７横梁、
１８ブラケット、１９ロック機構、
２０係合穴、２１ロックピン、
２２ブロック、２３ロッド、
２４軸受部、２５ガイド孔、
２６定滑車、２７ワイヤー、
２８カウンターウェイト、２９ガイドロッド、
３０ガイド孔、３１把手、
３２係合部、３３ラッチ、
３４解除棒、３５ハンドル、
３６シャフト、３７軸受、
３８シース、３９装着孔、
４０スプロケット、４１係合ピン、
４２円筒部、４３切欠部、
４４空間部、４５作動部材、
４６支軸、４７押圧片、
４８作用片、４９ワイヤー、
５０シース、５１ロッドエンドベアリング連結棒、
５２ブラケット、５３スリット溝、
５４ピン、５５電動モータ、
５６減速機、５７入力軸、
５８プーリ、５９プーリ、
６０Ｖベルト、６１出力軸、
６２スプロケット、６３駆動軸、
６４スプロケット、６５チェーン、
６６第１シャフト、６７第２シャフト、
６８クラッチ機構、６９軸受、
７０プーリ、７１Ｖベルト、
７２スプロケット、７３チェーン、
７４カバー、７５受圧装置、
７６扉側受圧ブロック、７７固定側受圧ブロック、
７８スロープ、７９排水溝、
８０ドレイン、８１接触面、
８３面取り部、８４ライナー、
８５補強ブロック、８６アンカー、
８７ボルト。 1 building, 2 frame opening,
3 Protective doors, 4 Travel rails,
5 guide rails, 6 wheels,
6A driving wheel, 6B driven wheel,
7 guide roller, 7A guide block,
8 box frame, 9 shell plate,
10 rebars, 11 electric drive parts,
12 driven drive unit, 13 control panel,
14 pits, 15 bottom plate,
16 side plate, 17 cross beam,
18 bracket, 19 lock mechanism,
20 engagement hole, 21 lock pin,
22 blocks, 23 rods,
24 bearings, 25 guide holes,
26 fixed pulleys, 27 wires,
28 counterweight, 29 guide rod,
30 guide holes, 31 handles,
32 engaging portion, 33 latch,
34 Release rod, 35 Handle,
36 shafts, 37 bearings,
38 sheath, 39 mounting hole,
40 sprockets, 41 engaging pins,
42 cylindrical part, 43 notch part,
44 spaces, 45 actuating members,
46 spindles, 47 pressing pieces,
48 working pieces, 49 wires,
50 sheath, 51 rod end bearing connecting rod,
52 bracket, 53 slit groove,
54 pins, 55 electric motor,
56 reducer, 57 input shaft,
58 pulley, 59 pulley,
60 V belt, 61 output shaft,
62 sprocket, 63 drive shaft,
64 sprockets, 65 chains,
66 first shaft, 67 second shaft,
68 clutch mechanism, 69 bearing,
70 pulley, 71 V belt,
72 sprocket, 73 chain,
74 cover, 75 pressure receiving device,
76 Door side pressure receiving block, 77 Fixed side pressure receiving block,
78 slope, 79 drainage ditch,
80 drain, 81 contact surface,
83 Chamfer, 84 Liner,
85 Reinforcement block, 86 Anchor,
87 volts.

Claims

A door capable of opening and closing the housing opening of the structure is provided, and an end of the shaft is disposed facing a mounting hole provided on the outside of the door, and a detachable handle is provided on the end of the shaft. A door opening and closing device that opens and closes when the door is moved by rotating a mounted handle, and includes a lock mechanism that prevents the door from being opened when the door is fully closed, so that the lock is released. And an actuating member provided in the vicinity of the end of the shaft is displaced by the mounting operation of the handle to the shaft. A door opening and closing device that releases the lock state by transmitting the displacement of the operating member to the latch.

The door is a lateral pulling type that can be opened and closed along the inside of the structure opening of the structure, a running rail is laid on the floor sill, a guide rail is fixed to the head part, and the door Drive units are provided on both sides, and wheels provided at the lower ends of the drive units roll on the running rail, and guide rollers having a vertical rotation shaft provided at the upper end of the door body are provided on the guide rails. The door opening and closing device according to claim 1, wherein the door is rolled and guided so as not to be displaced in an out-of-plane direction, and the wheel is rotationally driven by a rotation operation of the handle.

An engagement pin projects from the end of the shaft in the diametrical direction, and the handle has a cylindrical portion that receives the end of the shaft at the center, and the engagement pin is engaged with the cylindrical portion. The door opening and closing device according to claim 1 or 2, wherein a notch portion to be joined is provided at a diameter position.

In the vicinity of the end of the shaft, an operating member is provided in a space continuous with the mounting hole so as to be rotatable on a support shaft in a direction orthogonal to the axis of the shaft, and the operating member is provided on the shaft of the handle. A pressing piece to be pushed when mounted on the support shaft and a working piece on the opposite side with the support shaft as the center, the tip of the pressing piece is arranged in the vicinity of the shaft, The door opening and closing device according to any one of claims 1 to 3, wherein one end of the sheathed wire is connected, and the other end of the sheathed wire is connected to a portion for releasing the latch.

The lock mechanism has a structure in which a lock pin is dropped and engaged in an engagement hole provided on a floor surface. The lock pin is connected to a rod at an upper end and is guided up and down in a housing, and the urging force is As a means, one end of a wire wound around a fixed pulley provided in the upper part of the housing is connected to the upper end of the rod, the other end of the wire is connected to a counterweight, and the total weight on the counterweight side with respect to the fixed pulley is connected. With the weight set to be heavy, with the lock pin engaged with the engagement hole, the engagement portion provided on the rod is engaged with the latch provided on the housing, and locked. The door opening and closing device according to claim 1, wherein the door opening and closing device is maintained.