JP6624810B2

JP6624810B2 - Sliding door device

Info

Publication number: JP6624810B2
Application number: JP2015106967A
Authority: JP
Inventors: 秀一松尾
Original assignee: Sanwa Shutter Corp
Current assignee: Sanwa Shutter Corp
Priority date: 2015-05-27
Filing date: 2015-05-27
Publication date: 2019-12-25
Anticipated expiration: 2035-05-27
Also published as: JP2016223067A

Description

本発明は、引戸装置に係り、詳しくは、防火性能を備えた引戸に関するものである。 The present invention relates to a sliding door device, and more particularly, to a sliding door having fire prevention performance.

図９に示すように、上吊式の引戸装置では、扉体６の上端面に設けた戸車１０が、上ケース内で開口幅方向に延びるレール上１１を走行することで建物開口部を開閉する。扉体６の上方部位は、上ケースの下面に形成された開口から上ケース内に延びており、扉体６の開閉動作のため、扉体６と上ケース下面の開口との間には少なくとも数ミリのクリアランスＣが必要である。 As shown in FIG. 9, in the top-hanging sliding door device, a door roller 10 provided on an upper end surface of a door body 6 opens and closes a building opening by traveling on a rail 11 extending in an opening width direction in an upper case. . The upper portion of the door body 6 extends into the upper case from an opening formed in the lower surface of the upper case, and at least the opening and closing operation of the door body 6 requires at least a gap between the door body 6 and the opening on the lower surface of the upper case. A clearance C of several millimeters is required.

上ケース内には、駆動機構７の構成要素、具体的には、樹脂部品（電線の被覆部や戸車１０の回転ローラ）やグリス（電動モータ７１）等の着火しやすい要素が存在することから、火災時等の熱でこれらの要素が着火し、火炎が上ケース下面のクリアランスＣから露出する可能性がある。従来の引戸装置においても、扉体６の上端は煙返し部材９´となっているが（特許文献１にも同様の構成が開示されている）、着火の可能性のある要素とクリアランスＣとの距離が近いため、実際に着火した場合には、気流に乗って火炎が外部に露出するおそれがあった。
特許第５１８９３２８号 In the upper case, components that are easily ignited, such as components of the drive mechanism 7, specifically, resin components (the covering portion of the electric wire and the rotating roller of the door roller 10) and grease (the electric motor 71) exist. These elements may be ignited by heat from a fire or the like, and the flame may be exposed from the clearance C on the lower surface of the upper case. Also in the conventional sliding door device, the upper end of the door body 6 is a smoke return member 9 ′ (a similar configuration is also disclosed in Patent Document 1). Because of the short distance, when the fire actually ignites, there is a risk that the flame will be exposed to the outside due to the airflow.
Patent No. 5189328

本発明は、引戸装置において、上ケース内で火炎が発生した場合の防火性能を確保することを目的とするものである。 An object of the present invention is to secure fire prevention performance when a flame is generated in an upper case in a sliding door device.

本発明が採用した技術手段は、扉体の上端部がクリアランスを存して上ケース内に受け入れられた状態で開閉移動する引戸装置において、
扉体の上端面には、扉体の室外側面部を越えて延びる第１延出部と扉体の室内側面部を越えて延びる第２延出部を備えた上面と、扉体の室外側面部に離間対向する室外側垂下辺と、扉体の室内側面部に離間対向する室内側垂下辺と、からなる火炎流動抵抗部材が設けてあり、
上ケースの一部は、当該上ケースの室内側見付面と室内側下面を形成する点検カバーから構成されており、
前記第２延出部は、前記室内側垂下辺が前記点検カバーの部分に対してクリアランスを存して対向するように、前記点検カバーに向かって室内側に延び、
前記扉体の上方で発生した火炎は、前記第２延出部の上面によって扉体から離間される、
引戸装置、である。
典型的には、扉体の上端面に設けた戸車が上ケース内のレールを走行することで開口部を開閉する引戸装置であり、また、上ケース内で発火する場合には、扉体の上方の戸車やモータ部分が発火元となる可能性が高い。 The technical means adopted by the present invention is a sliding door device that opens and closes in a state where the upper end of the door body is received in the upper case with a clearance,
An upper surface provided with a first extension extending beyond the outdoor surface of the door and a second extension extending beyond the interior surface of the door, and an exterior surface of the door on the upper end surface of the door. A flame flow resistance member comprising an outdoor hanging side facing away from the part and an indoor hanging side facing away from the indoor side surface of the door body is provided,
A part of the upper case is composed of an inspection cover that forms the indoor-side finding surface and the indoor-side lower surface of the upper case,
The second extension portion extends toward the inspection cover indoors such that the indoor-side hanging side faces the inspection cover with a clearance therebetween, and
The flame generated above the door body is separated from the door body by the upper surface of the second extension.
Sliding door device.
Typically, a sliding door device provided on the upper end surface of the door body is a sliding door device that opens and closes an opening by traveling on a rail in the upper case. There is a high possibility that the upper door wheel or motor part will be the ignition source.

本発明では、扉体と点検カバーとの間のスペースを利用して、火炎流動抵抗部材の室内側垂下辺を、扉体から離間させて、点検カバーに近づける。室内側垂下辺と点検カバーとの間のクリアランスは、扉体の開閉時を妨げない範囲で小さく設定することができる。
後述する実施形態では、前記点検カバーは、前記室内側見付面と前記室内側下面とで形成される角部の内側で開口幅方向に延びる横材を備えており、
前記室内側垂下辺は、前記横材に対してクリアランスを存して対向している。
また、点検カバーの垂直面（室内側見付面）の内側に横材のような部材がない場合には、室内側垂下辺が、点検カバーの垂直面（室内側見付面）の内面にクリアランスを存して対向するようにしてもよい。
また、後述する実施形態では、第１延出部は第２延出部に比べて延出寸法が短いが、扉体の室外側にスペースが存在するような納まりの場合には、第１延出部を第２延出部と同様に長くしてもよい。 In the present invention, by utilizing the space between the door body and the inspection cover, the indoor-side hanging side of the flame flow resistance member is separated from the door body to approach the inspection cover. The clearance between the indoor side hanging side and the inspection cover can be set small as long as the opening and closing of the door body is not hindered.
In an embodiment described later, the inspection cover includes a horizontal member extending in the opening width direction inside a corner formed by the indoor-side finding surface and the indoor-side lower surface,
The indoor side hanging side faces the cross member with a clearance.
If there is no member such as a cross member inside the vertical surface of the inspection cover (the indoor side found surface), the indoor side drooping side is located inside the vertical surface of the inspection cover (the indoor side found surface). You may make it oppose with a clearance.
In the embodiment described later, the first extension portion has a shorter extension dimension than the second extension portion, but if the first extension portion fits in such a manner that there is a space outside the door, the first extension portion. The extension may be elongated similarly to the second extension.

１つの態様では、前記第２延出部には、上方に延びる立ち上がり辺が形成されている。
後述する実施形態では、前記立ち上がり辺は、第２延出部の先端に形成されており、室内側垂下辺と同一垂直面上に延びている。
なお、この立ち上がり辺が形成される部位は、第２延出部の先端に限定されず、中途部位でもよく、また、斜めに立ち上がるものでもよい。 In one aspect, a rising side extending upward is formed in the second extension.
In an embodiment to be described later, the rising side is formed at the tip of the second extending portion, and extends on the same vertical plane as the indoor side hanging side.
Note that the portion where the rising side is formed is not limited to the tip of the second extension portion, and may be an intermediate portion, or may be an obliquely rising portion.

１つの態様では、前記室内側下面には、前記室内側垂下辺の下端の直下に位置して熱膨張耐火部材が設けてある。
火災時の熱によって熱膨張耐火部材が発泡することで、室内側垂下辺の下端と室内側下面間のクリアランスを閉塞し、当該クリアランスを通る火炎の回りを防止する。
また、熱膨張耐火部材は平面上に設けられるので、扉体の開閉時や経年劣化によって離脱することが可及的に防止される。 In one aspect, a thermal expansion refractory member is provided on the lower surface on the indoor side immediately below a lower end of the hanging side on the indoor side.
The heat generated at the time of the fire causes the thermal expansion refractory member to foam, thereby closing the clearance between the lower end of the hanging side on the indoor side and the lower surface on the indoor side, and preventing the flame passing through the clearance.
In addition, since the thermal expansion refractory member is provided on a flat surface, it can be prevented from being detached as much as possible when the door is opened and closed or due to aging.

１つの態様では、前記室外側垂下辺の下方に室外側下面が位置しており、
前記室外側下面には、前記室外側垂下辺の下端の直下に位置して熱膨張耐火部材が設けてある。
火災時の熱によって熱膨張耐火部材が発泡することで、室外側垂下辺の下端と室外側下面間のクリアランスを閉塞し、当該クリアランスを通る火炎の回りを防止する。
また、熱膨張耐火部材は平面上に設けられるので、扉体の開閉時や経年劣化によって離脱することが可及的に防止される。 In one aspect, an outdoor lower surface is located below the outdoor drooping side,
A thermal expansion refractory member is provided on the lower surface of the outdoor side just below a lower end of the hanging side of the outdoor side.
The heat generated at the time of the fire causes the thermal expansion refractory member to foam, thereby closing the clearance between the lower end of the outdoor side hanging side and the lower surface of the outdoor side, thereby preventing the flame passing through the clearance.
In addition, since the thermal expansion refractory member is provided on a flat surface, it can be prevented from being detached as much as possible when the door is opened and closed or due to aging.

１つの態様では、前記第１延出部の上方にレールを支承する支持辺が位置しており、前記第１延出部には、熱膨張耐火部材が設けてある。
火災時の熱によって熱膨張耐火部材が発泡することで、第１延出部と支持辺（レール）との間のクリアランスを閉塞し、当該クリアランスを通る火炎の回りを防止する。
第１延出部が第２延出部に比べて短い場合であっても、室外側の火炎の通り路を有効に遮断する。
また、熱膨張耐火部材は平面上に設けられるので、扉体の開閉時や経年劣化によって離脱することが可及的に防止される。 In one aspect, a support side for supporting a rail is located above the first extension, and the first extension is provided with a thermal expansion refractory member.
The heat generated during the fire causes the thermal expansion refractory member to foam, thereby closing the clearance between the first extending portion and the support side (rail), thereby preventing the flame passing through the clearance.
Even when the first extension portion is shorter than the second extension portion, the passage of the flame on the outdoor side is effectively blocked.
In addition, since the thermal expansion refractory member is provided on a flat surface, it can be prevented from being detached as much as possible when the door is opened and closed or due to aging.

１つの態様では、前記火炎流動抵抗部材の上面の戸尻側端部は、前記扉体の戸尻側端面よりも突出しており、
前記戸尻側端部には立ち上がり辺が形成されていると共に、当該立ち上がり辺の下端に沿って熱膨張耐火部材が設けてある。
１つの態様では、前記上ケースの室内側下面、室外側下面には、それぞれ、室内側立ち上り辺、室外側立ち上り辺が形成され、前記室内側立ち上り辺と前記室外側立ち上がり辺間の横長開口に扉体の上端部がクリアランスを存して受け入れられており、
前記火炎流動抵抗部材の前記室内側垂下辺、前記室内側垂下辺の高さ寸法は、前記横長開口を形成する前記室内側立ち上り辺、室外側立ち上り辺の高さ寸法の２倍以上である。
扉体の上方で発生した火炎の扉体と室内側下面間のクリアランスまでの到達距離を長くするためには、前記火炎流動抵抗部材の前記室内側垂下辺、前記室内側垂下辺の高さ寸法は、大きいことが望ましく、３倍以上、４倍以上であってもよい。 In one aspect, a door end side end of the upper surface of the flame flow resistance member projects beyond the door end side end surface of the door body,
A rising edge is formed at the door end, and a thermal expansion refractory member is provided along a lower end of the rising edge.
In one aspect, an indoor-side rising edge and an outdoor-side rising edge are formed on the indoor-side lower surface and the outdoor-side lower surface of the upper case, respectively, and are formed in a horizontally elongated opening between the indoor-side rising edge and the outdoor-side rising edge. The upper end of the door body is accepted with clearance,
The height dimension of the indoor-side hanging side and the indoor-side hanging side of the flame flow resistance member is at least twice the height dimension of the indoor-side rising side and the outdoor-side rising side forming the horizontally long opening.
In order to increase the distance of the flame generated above the door body to the clearance between the door body and the lower surface on the indoor side, the height dimension of the indoor side hanging side of the flame flow resistance member and the indoor side hanging side Is desirably large, and may be three times or more and four times or more.

本発明によれば、仮に上ケース内の樹脂部品等に着火した場合にも、上ケース下面のクリアランスから火炎が外部へ露出することを制限でき、もって、防火性能を確保することができる。 According to the present invention, even if a resin component or the like in the upper case is ignited, the exposure of the flame to the outside from the clearance on the lower surface of the upper case can be restricted, and the fire prevention performance can be ensured.

扉体の上方で発生した火炎は、扉体の室内側においては、火炎流動抵抗部材の第２延出部の上面によって扉体から離間され、さらに、室内側垂下辺によって、扉体から離間した状態が維持され、前記第２延出部の上面に沿って室内側に向かう火炎は、前記室内側垂下辺に沿って下方に案内され、前記室内側垂下辺と扉体の室内側面部との間の空間を通ることになり、扉体の上方で発生した火炎の扉体と室内側下面間のクリアランスまでの到達距離が長く設定されている。 The flame generated above the door body is separated from the door body by the upper surface of the second extending portion of the flame flow resistance member on the indoor side of the door body, and further separated from the door body by the indoor side hanging edge. The state is maintained, and the flame heading toward the indoor side along the upper surface of the second extending portion is guided downward along the indoor side hanging side, and the flame between the indoor side hanging side and the indoor side surface of the door body is formed. The space between the door and the lower surface on the indoor side of the flame generated above the door is set to be long.

火炎流動抵抗部材の第２延出部にさらに上方に延びる立ち上がり辺が形成することで、前記第２延出部の上面に沿って室内側に向かう火炎は、前記立ち上がり辺に沿って上方に案内され、前記室内側垂下辺に沿って下方に案内され、前記室内側垂下辺と扉体の室内側面部との間の空間を通ることになり、到達距離がさらに長くなる。 By forming a rising side extending further upward in the second extension part of the flame flow resistance member, the flame heading toward the room along the upper surface of the second extension part is guided upward along the rising side. Then, it is guided downward along the indoor-side hanging side, and passes through the space between the indoor-side hanging side and the indoor side surface of the door, so that the reach distance is further increased.

火炎流動抵抗部材の第１延出部の上方にレールを支承する支持辺が位置しており、前記第１延出部には、熱膨張耐火部材が設けたものでは、火災時の熱によって熱膨張耐火部材が発泡することで、第１延出部と支持辺（レール）との間のクリアランスを閉塞し、当該クリアランスを通る火炎の回りを防止する。 A support side for supporting a rail is located above the first extension of the flame flow resistance member, and the first extension is provided with a thermal expansion refractory member. By foaming the inflatable refractory member, the clearance between the first extension portion and the support side (rail) is closed, and a flame passing through the clearance is prevented.

火炎流動抵抗部材の室外側垂下辺の下端の直下に位置して、室外側下面上に熱膨張耐火部材を設けたもの、また、火炎流動抵抗部材の室内側垂下辺の下端の直下に位置して、室内側下面上に熱膨張耐火部材を設けたものでは、火災時の熱によって熱膨張耐火部材が発泡することで、室外側垂下辺の下端と室外側下面間のクリアランス、室内側垂下辺の下端と室内側下面間のクリアランス、をそれぞれ閉塞し、当該クリアランスを通る火炎の回りを防止する。 One having a thermal expansion refractory member provided on the lower surface of the outdoor side, which is located immediately below the lower end of the outdoor side hanging side of the flame flow resistance member, and also located immediately below the lower end of the indoor side hanging side of the flame flow resistance member. In the case where the thermal expansion refractory member is provided on the indoor lower surface, the heat generated during a fire causes the thermal expansion refractory member to foam, thereby providing a clearance between the lower end of the outdoor hanging side and the outdoor lower surface, and the indoor hanging side. And a clearance between the lower end of the vehicle and the lower surface on the indoor side, respectively, to prevent a flame passing through the clearance.

本実施形態に係る引戸装置（全閉状態）を室内側から見た正面図である。It is the front view which looked at the sliding door device (full closure state) concerning this embodiment from the indoor side. 本実施形態に係る引戸装置の扉体の戸先側から見た側面図及び室内側から見た正面図である。It is the side view seen from the door tip side of the door body of the sliding door device concerning this embodiment, and the front view seen from the indoor side. 図２の側面図の上方部位の部分拡大図である。FIG. 3 is a partially enlarged view of an upper part of the side view of FIG. 2. 図２に示す扉体の一部省略上面図である。FIG. 3 is a partially omitted top view of the door shown in FIG. 2. 本実施形態に係る引戸装置の上ケースの内部を示す側面図である。It is a side view showing the inside of the upper case of the sliding door device concerning this embodiment. 図５と類似の図であり、駆動機構を省略して示す図である。FIG. 6 is a view similar to FIG. 5, omitting a drive mechanism. 図６の一部をさらに省略して上ケースの下枠部を示す部分図であって、熱膨張耐火部材が発泡して膨張してクリアランスを閉塞した状態を示す。FIG. 7 is a partial view showing the lower frame portion of the upper case with a part of FIG. 6 further omitted, showing a state in which the heat-expandable refractory member foams and expands to close the clearance. 本実施形態に係る引戸装置の上ケースの内部を示す正面図である。It is a front view showing the inside of the upper case of the sliding door device concerning this embodiment. 従来の引戸装置の上ケースの内部を示す側面図である。It is a side view showing the inside of the upper case of the conventional sliding door device.

本発明の実施形態について図面に基づいて説明する。図１は、本実施形態に係る引戸装置（全閉状態）を室内側から見た正面図であって、引戸装置は、戸先側縦枠１と、戸尻側縦枠２と、上ケース３と、下枠４と、から形成された枠部と、枠部の幅方向戸尻側半部に設けられた縦長方形状の固定パネル５と、幅方向戸先側半部に形成された建物開口部を開閉する縦長方形状の扉体６と、を備えている。 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the sliding door device (fully closed state) according to the present embodiment as viewed from the indoor side. The sliding door device includes a door-side vertical frame 1, a door-end vertical frame 2, and an upper case. 3, a lower frame 4, and a vertical rectangular fixed panel 5 provided in the width direction door butt side half of the frame portion, and a width direction door tip side half. A vertical rectangular door 6 for opening and closing the building opening.

上ケース３は、全体として開口幅方向に延びる箱状体であり、内部空間には、扉体６の駆動機構７が収容されている（図５）。上ケース３の室内側部位は点検カバー８から形成されており、上ケース３は、ケース本体と、ケース本体に対して回動可能に取り付けられた点検カバー８と、からなる。点検カバー８を開放することで、上ケース３の内部空間を露出させ、駆動機構７のメンテナンスが可能となっている。なお、点検カバーは、ケース本体に対して回動可能なものに代えて、ケース本体に対して着脱可能なものであってもよい。 The upper case 3 is a box-like body extending in the opening width direction as a whole, and a drive mechanism 7 for the door body 6 is accommodated in the internal space (FIG. 5). The indoor side portion of the upper case 3 is formed of an inspection cover 8, and the upper case 3 includes a case main body and an inspection cover 8 rotatably attached to the case main body. By opening the inspection cover 8, the internal space of the upper case 3 is exposed, and maintenance of the drive mechanism 7 is possible. The inspection cover may be detachable from the case body instead of being rotatable with respect to the case body.

図２に示すように、扉体６は、戸先側縦框６０、戸尻側縦框６１、上框６２、下框６３と、扉体６の面部を構成するパネル体６´と、からなる。図３、図６、図７に示すように、上框６２は、上端面６２０（扉体６の上端面である）、室外側面部６２１、室内側面部６２２を備えている。図４に示すように、戸先側縦框６０は、戸先側端面６００、室外側面部６０１、室内側面部６０２を備えており、戸尻側縦框６１は、戸尻側端面６１０、室外側面部６１１、室内側面部６１２を備えている。 As shown in FIG. 2, the door body 6 is made up of a door-side vertical frame 60, a door-side vertical frame 61, an upper frame 62, a lower frame 63, and a panel body 6 ′ constituting a surface portion of the door body 6. Become. As shown in FIGS. 3, 6, and 7, the upper frame 62 includes an upper end surface 620 (which is the upper end surface of the door body 6), an outdoor side surface portion 621, and an indoor side surface portion 622. As shown in FIG. 4, the door-side vertical frame 60 includes a door-side end surface 600, an outdoor side surface portion 601, and an indoor side surface portion 602. A side part 611 and an indoor side part 612 are provided.

図５〜図７に示すように、扉体６の上端部位（上框６２の上半部、戸先側縦框６０の上端部位、戸尻側縦框６１の上端部位）は上ケース３の下面に形成されており、開口幅方向に延びる横長の開口を通って上ケース３内に延びており、扉体６と開口との間にはクリアランスＣが存在している。扉体６の上端面６２０には、火炎流動抵抗部材９が固定されており、クリアランスＣを通る煙の流動や火炎の回りを遅延させ、また、抵抗を与えようになっている。固定パネル５は、枠部に固定されており不動なので、固定パネル５の上端と上ケース３との間には、そこから火災時に煙や火炎が露出するようなクリアランスは形成されない。図４に示すように、戸尻側縦框６１の室外側面部６１１には、高さ方向に延びる煙返し部材６４が設けてあり、開口部全閉時に、固定パネル５の戸先側縦框の屋外側面部に形成された煙返し部材（図示せず）とあいじゃくり状になることで、開口部全閉時に扉体６の戸尻側縦框６１と固定パネル５の戸先側縦框との間からの煙の流動や火炎の回りを遅延させる。 As shown in FIGS. 5 to 7, the upper end portion of the door body 6 (the upper half portion of the upper frame 62, the upper end portion of the door-side vertical frame 60, and the upper end portion of the door-side vertical frame 61) is the upper case 3. It is formed on the lower surface, extends into the upper case 3 through a horizontally long opening extending in the opening width direction, and has a clearance C between the door body 6 and the opening. A flame flow resistance member 9 is fixed to the upper end surface 620 of the door body 6 so as to delay the flow of smoke passing through the clearance C and around the flame, and to provide resistance. Since the fixed panel 5 is fixed to the frame and is immovable, no clearance is formed between the upper end of the fixed panel 5 and the upper case 3 such that smoke or flame is exposed during a fire therefrom. As shown in FIG. 4, a smoke return member 64 extending in the height direction is provided on the outdoor side surface portion 611 of the vertical door frame 61, and when the opening is completely closed, the vertical frame on the door side of the fixed panel 5. And the smoke return member (not shown) formed on the outdoor side surface of the door body, the door frame 6 of the door body 6 and the vertical side of the fixed panel 5 at the door end side when the opening is fully closed. It delays the flow of smoke and flames from between the frames.

図３、図４に示すように、火炎流動抵抗部材９は、扉体６の上端面６２０に亘って延びる長尺材であって、水平状に延びる上面９０と、室外側垂下辺９１と、室内側垂下辺９２と、室内側垂下辺９２の上方に延びる室内側立ち上り辺９３と、を備えている。火炎流動抵抗部材９は、扉体６の上端面６２０のほぼ全幅に沿って延びる長さ寸法を備えているが、本実施形態では、火炎流動抵抗部材９の戸先側は、扉体６の戸先側縦框６０の戸先側端面６００までは達しておらず、火炎流動抵抗部材９の戸尻側は、扉体６の戸尻側縦枠６１の戸先側端面６１０を越えて延びる延出部９Ａを備えている。上面９０の戸尻側端部（延出部９Ａの戸尻側端部）には、立ち上がり辺９４が形成されている。立ち上がり辺９４の上端は室内側立ち上り辺９３の上端よりも低い。また、立ち上がり辺９４の室外側部位は切り欠かれている。 As shown in FIGS. 3 and 4, the flame flow resistance member 9 is a long material extending over the upper end surface 620 of the door body 6, and has a horizontally extending upper surface 90, an outdoor hanging side 91, The vehicle includes a room-side hanging side 92 and a room-side rising side 93 extending above the room-side hanging side 92. Although the flame flow resistance member 9 has a length dimension extending along substantially the entire width of the upper end surface 620 of the door body 6, in this embodiment, the door tip side of the flame flow resistance member 9 is It does not reach the door end side end surface 600 of the door end side vertical frame 60, and the door end side of the flame flow resistance member 9 extends beyond the door end side end surface 610 of the door end vertical frame 61 of the door body 6. An extension 9A is provided. A rising edge 94 is formed at the door end of the upper surface 90 (the end of the extension 9A). The upper end of the rising side 94 is lower than the upper end of the indoor-side rising side 93. In addition, the outdoor portion of the rising side 94 is notched.

図３に示すように、上面９０は、幅方向において、扉体６の上端面６２０に載る中央部分９００と、上端面６２０を越えて室外側に延びる室外側延出部分９０１と、上端面６２０を越えて室内側に延びる室内側延出部分９０２と、からなる。図４に示すように、上面９０の室外側部位（室外側延出部分９０１）には、長さ方向に亘って熱膨張耐火部材１２が設けてあり、上面９０の戸尻側端部（延出部９Ａの端部）には、幅方向に亘って熱膨張耐火部材１２が設けてある。 As shown in FIG. 3, the upper surface 90 includes, in the width direction, a central portion 900 placed on the upper end surface 620 of the door body 6, an outdoor extending portion 901 extending beyond the upper end surface 620 to the outdoor side, and an upper end surface 620. And a room-side extending portion 902 extending to the room side over the vehicle. As shown in FIG. 4, a thermal expansion refractory member 12 is provided in an outdoor portion (outdoor extension portion 901) of the upper surface 90 along the length direction, and a door end side end (extension) of the upper surface 90 is provided. A thermal expansion refractory member 12 is provided at the end of the protrusion 9A) in the width direction.

図３に示すように、室内側延出部分９０２の延出寸法は、室外側延出部分９０１よりも大きい。よって、上面９０の室内側端部（室内側延出部分９０２の端部）から垂下する室内側垂下辺９２と上框６２の室内側面部６２２との間の距離Ｌ１は、上面９０の室外側端部（室外側延出部分９０１の端部）から垂下する室外側垂下辺９１と上框６２の室外側面部６２１との間の距離Ｌ２よりも大きく、すなわち、上面９０の室内側端部（室内側延出部分９０２の端部）から垂下する室内側垂下辺９２と室内側クリアランスＣまでの距離は、上面９０の室外側端部（室外側延出部分９０１の端部）から垂下する室外側垂下辺９１から室外側クリアランスＣまでの距離よりも大きい。なお、構造上、距離Ｌ２を長く取ることが可能な場合には、距離Ｌ２を長くしてもよく、例えば、距離Ｌ１と同程度の長さとしてもよい。 As shown in FIG. 3, the extension of the indoor-side extending portion 902 is larger than that of the outdoor-side extending portion 901. Therefore, the distance L1 between the indoor side hanging side 92 hanging from the indoor side end of the upper surface 90 (the end of the indoor side extending portion 902) and the indoor side surface portion 622 of the upper frame 62 is the outdoor side of the upper surface 90. The distance L2 is larger than the distance L2 between the outdoor hanging side 91 hanging from the end (the end of the outdoor extending portion 901) and the outdoor surface 621 of the upper frame 62, that is, the indoor end of the upper surface 90 ( The distance between the indoor-side hanging edge 92 hanging from the indoor-side extending portion 902) and the indoor-side clearance C is the room hanging from the outdoor-side end of the upper surface 90 (the end of the outdoor-side extending portion 901). It is larger than the distance from the outer hanging side 91 to the outdoor clearance C. Note that if the distance L2 can be long due to the structure, the distance L2 may be long, for example, may be approximately the same as the distance L1.

図５、図６、図８に示すように、扉体６は上吊式引戸であり、上端面６２０（具体的には、火炎流動抵抗部材９を介して）には、戸先側部位と、戸尻側部位にそれぞれ戸車１０が設けてあり、上ケース３の内部空間の下側部位に位置して開口幅方向に延びるレール１１上を転動するようになっている。図２に示すように、扉体６の下端部には、振れ止め用突起６５が形成されており、下枠４に形成されたガイド溝（図示せず）に沿って移動するようになっている。また、下端部の戸先側にはロック装置６６が設けてある。 As shown in FIGS. 5, 6, and 8, the door body 6 is an upper-hanging sliding door, and the upper end surface 620 (specifically, via the flame flow resistance member 9) A door wheel 10 is provided at each of the door bottom sides, and rolls on a rail 11 extending in the opening width direction and located at a lower side of the internal space of the upper case 3. As shown in FIG. 2, a steadying projection 65 is formed at the lower end of the door body 6, and moves along a guide groove (not shown) formed in the lower frame 4. I have. Further, a lock device 66 is provided on the door end side at the lower end.

戸先側の戸車が従動側戸車、戸尻側の戸車が駆動側戸車となっており、駆動機構７は、駆動側戸車１０を走行させる駆動チェーン７０と、駆動チェーン７０を駆動させる電動モータ７１と、を備えており、通常時には、電動モータ７１の正逆回転によって、戸車１０がレール１１上を転動することで、扉体６がレール１１上をスライド移動して開口部を開閉する。駆動機構７は、さらに、自閉装置７２を備えており、開口部開放状態（全開及び半開を含む）において火災が発生した場合には、自閉装置７２が作動して、扉体６を閉鎖方向に移動させて全閉状態とする。このような自閉装置（扉体の閉鎖方向への付勢手段を備えており、通常時には付勢手段による閉鎖方向への移動が規制されており、火災時等に規制を解除する）は当業者において公知なので、詳細な説明は省略する。 The door roller on the door end side is a driven door roller, and the door roller on the door end side is a driving door roller. The driving mechanism 7 includes a driving chain 70 for driving the driving door roller 10 and an electric motor 71 for driving the driving chain 70. In normal times, the door wheel 6 slides on the rail 11 by the door roller 10 rolling on the rail 11 by forward and reverse rotation of the electric motor 71 to open and close the opening. The drive mechanism 7 further includes a self-closing device 72, and when a fire occurs in the open state of the opening (including full opening and half opening), the self closing device 72 operates to close the door body 6. To the fully closed state. Such a self-closing device (provided with a biasing means in the closing direction of the door body, which is normally restricted from moving in the closing direction by the biasing means, and which is released in the event of fire, etc.) Since detailed description is known to those skilled in the art, detailed description will be omitted.

ケース本体は、上面３０と、室外側見付面３１と、室外側見付面３１の下方に形成した下枠部と、からなる。図示の態様では、下枠部は、クリアランスＣに近い側の第１水平面３２と、クリアランスＣから遠い側の第２水平面３３と、第１水平面３２と第２水平面３３との間に形成された下向き凹状部３４と、第１水平面３２の先端（クリアランスＣに臨む端部）に形成された垂直状の立ち上がり辺３５と、第１水平面３２の基端に形成された垂直辺３６と、を備えている。垂直辺３６の上端から室外側に向かって水平辺３７が形成されており、レール１１を支承する支持辺３８の基端側が水平辺３７に支持されている。下枠部の開口幅方向戸先側半部では、下向き凹状部３４を閉塞することで第１水平面３２、第２水平面３３が全体として水連続状の平面となっており（図５参照）、開口幅方向戸尻側半部では、下向き凹状部３４に固定パネル５の上端部位が嵌め込まれており、固定パネル５を挟んで第１水平面３２、第２水平面３３が形成されている（図６、図７参照）。 The case body includes an upper surface 30, an outdoor finding surface 31, and a lower frame formed below the outdoor finding surface 31. In the illustrated embodiment, the lower frame portion is formed on the first horizontal surface 32 near the clearance C, the second horizontal surface 33 far from the clearance C, and between the first horizontal surface 32 and the second horizontal surface 33. It has a downward concave portion 34, a vertical rising side 35 formed at the tip of the first horizontal plane 32 (the end facing the clearance C), and a vertical side 36 formed at the base end of the first horizontal plane 32. ing. A horizontal side 37 is formed from the upper end of the vertical side 36 toward the outside of the room, and the base side of a support side 38 that supports the rail 11 is supported by the horizontal side 37. In the opening width direction door tip side half of the lower frame portion, the first horizontal surface 32 and the second horizontal surface 33 are entirely water continuous by closing the downward concave portion 34 (see FIG. 5). In the door-width-side door-side half, the upper end portion of the fixed panel 5 is fitted in the downward concave portion 34, and a first horizontal plane 32 and a second horizontal plane 33 are formed with the fixed panel 5 interposed therebetween (FIG. 6). , FIG. 7).

点検カバー８は、上ケース３の室内側見付面を形成する垂直面８０と、上ケース３の室内側下面を形成する水平面８１と、から断面視Ｌ形状を備えており、水平面８１の先端には、垂直状の立ち上がり辺８２が形成されている。点検カバー８は、垂直面８０の上端を、ケース本体に対して丁番８００を介して連結することで、ケース本体に対して回動可能となっている。 The inspection cover 8 has an L-shape in cross section from a vertical surface 80 that forms the indoor surface of the upper case 3 and a horizontal surface 81 that forms the lower surface of the upper case 3 on the indoor side. Is formed with a vertical rising side 82. The inspection cover 8 is rotatable with respect to the case main body by connecting the upper end of the vertical surface 80 to the case main body via the hinge 800.

点検カバー８の垂直面８０と水平面８１の角部の内側には長さ方向（開口幅方向）に亘って断面視方形状の横材８３が設けてある。ケース本体の長さ方向（開口幅方向）の両端には水平片８４０と垂直片８４１とからＬ形状の支持ブラケット８４が設けてあり、点検カバー８は、横材８３の上面８３０を支持ブラケット８４の水平片８４０の下面に当接させた状態で、螺子８５で横材８３と支持ブラケット８４を止着することで、ケース本体に対して固定される。 Inside the corner between the vertical surface 80 and the horizontal surface 81 of the inspection cover 8, a cross member 83 having a rectangular shape in cross section is provided in the length direction (opening width direction). At both ends in the length direction (opening width direction) of the case body, an L-shaped support bracket 84 is provided from a horizontal piece 840 and a vertical piece 841, and the inspection cover 8 attaches the upper surface 830 of the horizontal member 83 to the support bracket 84. The horizontal member 840 is fixed to the case main body by fastening the horizontal member 83 and the support bracket 84 with the screw 85 in a state where the horizontal member 840 is in contact with the lower surface of the horizontal piece 840.

点検カバー８の水平面８１の先端に形成された立ち上がり辺８２と、ケース本体の下枠部の立ち上がり辺３５との間に、開口幅方向に延びる横長開口が形成されており、この横長開口に扉体６の上端部位が受け入れられており、立ち上がり辺８２と上框６２の室内側面部６２２、戸先側縦框６０の室内側面部６０２の上方部位、戸尻側縦框６１の室内側面部６１２の上方部位との間に室内側クリアランスＣが形成され、立ち上がり辺３５と上框６２の室外側面部６２１、戸先側縦框６０の室外側面部６０１の上方部位、戸尻側縦框６１の室外側面部６１１の上方部位との間に室外側クリアランスＣが形成される。 A horizontal opening extending in the opening width direction is formed between a rising edge 82 formed at the tip of a horizontal surface 81 of the inspection cover 8 and a rising edge 35 of the lower frame portion of the case main body. The upper end portion of the body 6 is received, and the rising side 82 and the indoor side surface portion 622 of the upper frame 62, the upper portion of the indoor side surface portion 602 of the doorside vertical frame 60, and the indoor side surface portion 612 of the door end side vertical frame 61 An indoor clearance C is formed between the upper side of the vertical frame 61 and the upper side of the outdoor side surface 621 of the rising side 35 and the upper frame 62, the outdoor side surface 601 of the vertical frame 60 on the front end, and the vertical frame 61 of the door end side. An outdoor-side clearance C is formed between the outdoor-side surface portion 611 and an upper portion thereof.

開口部全閉状態では、図６、図７に示すように、立ち上がり辺８２がクリアランスＣを介して上框６２の室内側面部６２２、戸先側縦框６０の室内側面部６０２の上方部位、戸尻側縦框６１の室内側面部６１２の上方部位に対向している。扉体６の上端に取り付けた火炎流動抵抗部材９の室内側垂下辺９２は、上面９０の室内側延出部分９０２によってクリアランスＣから大きく室内側に持ち出されて離間して延びており、横材８３の垂直面８３１にクリアランスＣ１を存して対向近接している。室内側延出部分９０２の室内側端部には上方に向かって立ち上がり辺９３が延びており、下方に向かって室内側垂下辺９２が延びている。室内側垂下辺９２の下端の下方に位置して、クリアランスＣ２存して水平面８１が位置しており、水平面上には、室内側垂下辺９２の下端の直下に位置して、長さ方向に亘って熱膨張耐火部材１２が設けてある。 In the fully closed state of the opening, as shown in FIGS. 6 and 7, the rising side 82 is located above the indoor side surface 622 of the upper frame 62 and the indoor side surface 602 of the doorside vertical frame 60 via the clearance C, It faces the upper part of the indoor side surface part 612 of the vertical frame 61 on the door side. The indoor-side hanging side 92 of the flame flow resistance member 9 attached to the upper end of the door body 6 is largely taken out of the clearance C to the indoor side by the indoor-side extension portion 902 of the upper surface 90 and extends apart from the horizontal member. 83 are opposed and close to each other with a clearance C1 on the vertical surface 831. A rising side 93 extends upward at the indoor side end of the indoor-side extending portion 902, and a indoor-side hanging side 92 extends downward. The horizontal plane 81 is located below the lower end of the indoor-side hanging side 92 with the clearance C2 therebetween. On the horizontal plane, the horizontal plane 81 is located directly below the lower end of the indoor-side hanging side 92 and extends in the longitudinal direction. A thermal expansion refractory member 12 is provided throughout.

開口部全閉状態では、図６、図７に示すように、立ち上がり辺３５がクリアランスＣを介して上框６２の室外側面部６２１、戸先側縦框６０の室外側面部６０１の上方部位、戸尻側縦框６１の室外側面部６１１の上方部位に対向している。火炎流動抵抗部材９の上面９０の室外側延出部分９０１は、レール１１を支承する支持辺３８の下側にクリアランスＣ３を存して対向離間して延びており、室外側延出部分９０１の上面には長さ方向に亘って熱膨張耐火部材１２が設けてある。室外側垂下辺９１は、室外側に位置する垂直辺３６とクリアランスＣ４を存して近接対向している。室外側垂下辺９１の下端の下方にクリアランスＣ５を存して第１水平面３２が位置しており、第１水平面３２上には長さ方向に亘って熱膨張耐火部材１２が設けてある。扉体６の上端に取り付けた火炎流動抵抗部材９の室外側垂下辺９１の下方部位が、立ち上がり辺３５の上方部位の室外側に位置してクリアランスＣ６を存して近接対向している。 In the fully closed state of the opening, as shown in FIGS. 6 and 7, the rising edge 35 is located above the outdoor side surface portion 621 of the upper frame 62 and the outdoor side surface portion 601 of the doorside vertical frame 60 via the clearance C, It faces the upper part of the outdoor side surface portion 611 of the vertical frame 61 on the door side. The outdoor extension portion 901 of the upper surface 90 of the flame flow resistance member 9 extends opposite to and apart from the support side 38 that supports the rail 11 with a clearance C3 therebetween. A thermal expansion refractory member 12 is provided on the upper surface over the length direction. The outdoor side hanging side 91 is closely opposed to the vertical side 36 located on the outdoor side with a clearance C4. The first horizontal surface 32 is located below the lower end of the outdoor-side hanging side 91 with a clearance C5, and the thermal expansion refractory member 12 is provided on the first horizontal surface 32 in the longitudinal direction. The lower part of the outdoor-side hanging side 91 of the flame flow resistance member 9 attached to the upper end of the door body 6 is located on the outdoor side of the upper part of the rising side 35 and is close to and opposed with a clearance C6.

上ケース３の内部空間と室内側クリアランスＣとの間の流体の移動経路は、内部空間から室外側クリアランスＣへ流れる場合について説明すると、火炎流動抵抗部材９の上面９０の室内側延出部位９０２の上面に沿って室内側に向かって横向きに流れ、火炎流動抵抗部材９の立ち上がり辺９３に沿って上向きに流れ、火炎流動抵抗部材９の室内側垂下辺９２の室内側面に沿って当該室内側垂下辺９２と横材８３の垂直面８３１との間のクリアランスＣ１を通って下向きに流れ、室内側垂下辺９２の下端と水平面８１との間のクリアランスＣ２を通って、水平面８１の上面に沿って室外側に向かって横向きに流れ、立ち上がり辺８２と、上框６２の室内側面部６２２、戸先側縦框６０の室内側面部６０２の上方部位、戸尻側縦框６１の室内側面部６１２の上方部位、との間のクリアランスＣを通って下向きに流れる。 The movement path of the fluid between the internal space of the upper case 3 and the indoor-side clearance C will be described in the case where the fluid flows from the internal space to the outdoor-side clearance C. The indoor-side extending portion 902 of the upper surface 90 of the flame flow resistance member 9 will be described. Flows laterally toward the indoor side along the upper surface of the flame flow resistance member 9, flows upward along the rising side 93 of the flame flow resistance member 9, and flows along the indoor side surface of the indoor side hanging side 92 of the flame flow resistance member 9. It flows downward through the clearance C1 between the hanging side 92 and the vertical surface 831 of the horizontal member 83, passes through the clearance C2 between the lower end of the indoor-side hanging side 92 and the horizontal plane 81, and follows the upper surface of the horizontal plane 81 The air flows laterally toward the outside of the room, and the rising edge 82, the indoor side surface portion 622 of the upper frame 62, the upper portion of the indoor side surface portion 602 of the doorside vertical frame 60, and the indoor side surface of the door bottom vertical frame 61 Upper part 612, through the clearance C between the downwardly flowing.

上ケース３の内部空間と室外側クリアランスＣとの間の流体の移動経路は、内部空間から室外側クリアランスＣへ流れる場合について説明すると、支持辺３８と火炎流動抵抗部材９の上面９０の室外側延出部位９０１との間のクリアランスＣ３を通って室外側に向かって横向きに流れ、火炎流動抵抗部材９の室外側垂下辺９１の室外側面に沿って当該室外垂直辺９１と垂直辺３６との間のクリアランスＣ４を通って下向きに流れ、室外側垂下辺９１の下端と第１水平面３２との間のクリアランスＣ５から、室外側垂下辺９１の下方部位と立ち上がり辺３５との間のクリアランスＣ６に沿って上向きに流れ、立ち上がり辺３５と、上框６２の室外側面部６２１、戸先側縦框６０の室外側面部６０１の上方部位、戸尻側縦框６１の室外側面部６１１の上方部位との間のクリアランスＣを通って下向きに流れる。 The flow path of the fluid between the internal space of the upper case 3 and the outdoor-side clearance C will be described in the case where the fluid flows from the internal space to the outdoor-side clearance C. The air flows laterally toward the outdoor side through the clearance C3 between the extending portion 901 and the outdoor vertical side 91 and the vertical side 36 along the outdoor side surface of the outdoor hanging side 91 of the flame flow resistance member 9. It flows downward through the clearance C4 between the lower side of the outdoor hanging side 91 and the first horizontal plane 32, and from the clearance C5 between the lower portion of the outdoor hanging side 91 and the rising side 35 to the clearance C6. It flows upward along the rising edge 35, an outdoor surface portion 621 of the upper frame 62, an upper portion of the outdoor surface portion 601 of the doorside vertical frame 60, and an outdoor surface portion 61 of the doorside vertical frame 61. It flows downwardly through the clearance C between the upper part of.

図５、図６と図９を対比すると明らかなように、本実施形態において、上ケース３内に位置する扉体６の上方部位の高さ寸法は、従来の扉体６の上方部位の高さ寸法よりも大きく設計されており、火炎流動抵抗部材９の室外側垂下辺９１、室内側垂下辺９２の高さ寸法が、立ち上がり辺３５、立ち上がり辺８２の高さ寸法よりも大きく設計されている（図示の態様では、ほぼ４倍であるが、少なくとも２倍の高さに設定される）。火炎流動抵抗部材９の室外側垂下辺９１、室内側垂下辺９２の高さ寸法を大きくすることで、クリアランスＣ４、クリアランスＣ１を長くし、もって、扉体６の上方で発生した火炎のクリアランスＣまでの到達距離を長くしている。なお、扉体６の上方部位を上ケース３内に挿入させるためには、立ち上がり辺３５の高さ寸法を大きくすることが困難であり、また、点検カバー８の開閉のためには、立ち上がり辺８２の高さ寸法を大きくすることが困難である。 As is clear from a comparison between FIGS. 5, 6 and 9, in the present embodiment, the height dimension of the upper portion of the door 6 located in the upper case 3 is the height of the upper portion of the conventional door 6. The height dimension of the outdoor side hanging side 91 and the indoor side hanging side 92 of the flame flow resistance member 9 is designed to be larger than the height dimensions of the rising side 35 and the rising side 82. (In the illustrated embodiment, the height is almost four times, but is set at least twice as high). The clearance C4 and the clearance C1 are lengthened by increasing the heights of the outdoor-side hanging side 91 and the indoor-side hanging side 92 of the flame flow resistance member 9, and thus the clearance C of the flame generated above the door body 6 is increased. To reach longer. In order to insert the upper part of the door body 6 into the upper case 3, it is difficult to increase the height dimension of the rising side 35. It is difficult to increase the height of 82.

熱膨張耐火部材１２は、例えば、温度が１５０℃〜２５０℃の温度に加熱されることで発泡して膨張する部材である。熱膨張耐火部材１２としては、例えば、積水化学工業株式会社のフィブロック（登録商標）を用いることができる。本実施形態では、シート片からなる熱膨張耐火部材１２は、接着テープによって固定される。これらの熱膨張耐火部材１２は、火災時の熱によって膨張し、各熱膨張耐火部材１２の周囲の空隙を閉塞するようになっている。 The thermal expansion refractory member 12 is a member that expands by being foamed when heated to a temperature of 150 ° C. to 250 ° C., for example. As the thermal expansion refractory member 12, for example, Fibroc (registered trademark) of Sekisui Chemical Co., Ltd. can be used. In the present embodiment, the thermal expansion refractory member 12 made of a sheet piece is fixed by an adhesive tape. These heat-expandable refractory members 12 are expanded by heat at the time of fire, and close the gaps around each of the heat-expandable refractory members 12.

上ケース３の内部空間での火炎の発生源としては、樹脂製の戸車１０、モータ７１のオイル、モータ７１への電線被覆部等が例示され、これらは、全閉姿勢にある扉体６の上方に位置することになる。また、火災発生時に扉体６が全開状態あるいは半開状態にある時には、自閉装置７２によって、開口部全閉状態となる。 Examples of the source of the flame in the inner space of the upper case 3 include a door roller 10 made of resin, oil of a motor 71, an electric wire covering portion for the motor 71, and the like. It will be located above. Further, when the door 6 is in the fully open state or the half open state when a fire occurs, the opening is fully closed by the self-closing device 72.

扉体６の室内側においては、扉体６の上方部位で発生した火炎は、火炎流動抵抗部材９の室内側延出部分９０２の上面によって、扉体６から離間するように遠ざけられ、かつ、室内側延出部分９０２、室内側立ち上り辺９３、室内側垂下辺９２、水平面８１によって、火炎がクリアランスＣに到達するまでの距離が長くなっている。また、火炎の熱によって、水平面８１上の熱膨張耐火部材１２が発泡すると、発泡膨張した熱膨張耐火部材１２´によってクリアランスＣ１の下端部位及びクリアランスＣ２が閉塞される。したがって、上ケース３の内部空間で発生した火炎が室内側のクリアランスＣから露出することが可及的に防止される。 On the indoor side of the door body 6, the flame generated in the upper part of the door body 6 is moved away from the door body 6 by the upper surface of the indoor-side extending portion 902 of the flame flow resistance member 9, and Due to the indoor-side extending portion 902, the indoor-side rising side 93, the indoor-side hanging side 92, and the horizontal plane 81, the distance until the flame reaches the clearance C is long. Further, when the heat-expandable refractory member 12 on the horizontal surface 81 is foamed by the heat of the flame, the lower end portion of the clearance C1 and the clearance C2 are closed by the foamed and expanded heat-expandable refractory member 12 '. Therefore, the exposure of the flame generated in the inner space of the upper case 3 from the clearance C on the indoor side is prevented as much as possible.

扉体６の室外側においては、扉体６の上方部位で発生した火炎は、火炎流動抵抗部材９の室外側延出部分９０１の上面によって、扉体６から離間されるが、火炎の熱によって、室外側延出部分９０１上の熱膨張耐火部材１２が発泡すると、発泡膨張した熱膨張耐火部材１２´によって室外側延出部分９０１と支持辺３８との間のクリアランスＣ３が閉塞される。火炎の熱によって、第１水平面３２上の熱膨張耐火部材１２が発泡すると、発泡膨張した熱膨張耐火部材１２´によってクリアランスＣ４の下方部位、クリアランスＣ５、クリアランスＣ６が閉塞される。したがって、上ケース３の内部空間で発生した火炎が室外側のクリアランスＣから露出することが可及的に防止される。 On the outdoor side of the door body 6, the flame generated in the upper part of the door body 6 is separated from the door body 6 by the upper surface of the outdoor-side extending portion 901 of the flame flow resistance member 9. When the thermal expansion refractory member 12 on the outdoor extension portion 901 foams, the clearance C3 between the outdoor extension portion 901 and the support side 38 is closed by the expanded thermal expansion refractory member 12 '. When the heat-expandable refractory member 12 on the first horizontal surface 32 foams due to the heat of the flame, the lower portion of the clearance C4, the clearance C5, and the clearance C6 are closed by the expanded thermal-expansion refractory member 12 '. Therefore, the exposure of the flame generated in the internal space of the upper case 3 from the clearance C on the outdoor side is prevented as much as possible.

また、火炎流動抵抗部材９の上面９０の戸尻側端部、すなわち延出部９Ａの端部には、幅方向に亘って熱膨張耐火部材１２が設けてあり、この熱膨張耐火部材１２が火炎の熱によって立ち上がり辺９４に沿って発泡すると、全閉状態にある扉体６の上端面６２０の戸尻側に膨張した熱膨張耐火部材１２の盛り上がり部が形成され、この盛り上がり部が障害となって火炎の流動を妨げることで、扉体６の上方で発生した火炎が、扉体６の戸尻側に回って上ケース３の下面から露出することが可及的に防止される。 A thermal expansion refractory member 12 is provided across the width direction at the door end of the upper surface 90 of the flame flow resistance member 9, that is, at the end of the extension 9A. When foaming occurs along the rising edge 94 due to the heat of the flame, a bulge portion of the thermally expanded refractory member 12 that expands on the door end side of the upper end surface 620 of the door body 6 in a fully closed state is formed. By preventing the flow of the flame, the flame generated above the door body 6 is prevented as much as possible from reaching the door bottom side of the door body 6 and being exposed from the lower surface of the upper case 3.

３上ケース
３５室外側立ち上り辺
６扉体
６２１室外側面部
６２２室内側面部
７駆動機構
８点検カバー
８０垂直面（室内側見付面）
８１水平面（室内側下面）
８２室内側立ち上り辺
８３横材
９火炎流動抵抗部材
９０上面
９０１室外側延出部分（第１延出部）
９０２室内側延出部分（第２延出部）
９１室外側垂下辺
９２室内側垂下辺
９３室内側の立ち上がり辺
９４戸尻側の立ち上がり辺
１０戸車
１１レール
１２熱膨張耐火部材
３２第１水平面（室外側下面）
３８支持辺
Ｃ、Ｃ１、Ｃ２、Ｃ３、Ｃ４、Ｃ５、Ｃ６クリアランス 3 Upper case 35 Outdoor rising edge 6 Door body 621 Outdoor side surface part 622 Indoor side part 7 Drive mechanism 8 Inspection cover 80 Vertical plane (indoor side surface)
81 Horizontal surface (indoor side lower surface)
82 Indoor-side rising edge 83 Cross member 9 Flame-flow resistance member 90 Upper surface 901 Outdoor-side extension (first extension)
902 Indoor side extension part (second extension part)
91 outdoor side hanging side 92 indoor side hanging side 93 indoor side rising side 94 door butt side rising side 10 door wheel 11 rail 12 thermal expansion refractory member 32 first horizontal plane (outdoor lower surface)
38 Support sides C, C1, C2, C3, C4, C5, C6 Clearance

Claims

In a sliding door device in which an upper end portion of a door body opens and closes and moves while being received in an upper case with a clearance,
An outdoor-side clearance is formed between the outdoor-side rising edge formed at the tip of the outdoor-side lower surface of the upper case and the outdoor-side surface portion of the door body, and the indoor-side rising edge and the door formed at the tip of the indoor-side lower surface of the upper case. An indoor clearance is formed between the indoor side surface and the body,
An upper surface provided with a first extension extending beyond the outdoor surface of the door and a second extension extending beyond the interior surface of the door, and an exterior surface of the door on the upper end surface of the door. A flame flow resistance member comprising an outdoor hanging side facing away from the part and an indoor hanging side facing away from the indoor side surface of the door body is provided,
A part of the upper case is formed of an inspection cover that forms the indoor-side finding surface, the indoor-side lower surface, and the indoor-side rising edge of the upper case,
The second extension portion extends toward the inspection cover indoors such that the indoor-side hanging side faces the inspection cover with a clearance therebetween, and
The extension size of the second extension portion is larger than the extension size of the first extension portion, and is between the indoor side hanging side of the flame flow resistance member and the indoor side surface portion of the door body. The distance is greater than the distance between the outdoor-side hanging side of the flame flow resistance member and the outdoor-side surface portion of the door body, and the distance from the room-side hanging side of the flame flow resistance member to the room-side clearance. The distance is greater than the distance from the outdoor hanging side of the flame flow resistance member to the outdoor clearance, and the distance between the indoor hanging side and the indoor rising side of the flame flow resistance member is the Larger than the indoor clearance,
The flame generated above the door body is separated from the door body by the upper surface of the second extension portion of the flame flow resistance member, and is separated from the door body by the indoor side hanging side of the flame flow resistance member. The state is maintained, and the flame heading toward the room interior along the upper surface of the second extension portion is guided downward through the clearance along the room-side hanging side, and the chamber is above the room-side lower surface. A flame formed above the door body passes through a space formed between the inner hanging side and the indoor rising side, and a reaching distance of the flame generated above the door body to the indoor side clearance is determined by a flame generated above the door body. The upper surface of the first extension portion, the outdoor side hanging side, is set to be longer than the reaching distance to reach the outdoor side clearance along the outdoor side rising side ,
Sliding door device.

In a sliding door device in which an upper end portion of a door body opens and closes and moves while being received in an upper case with a clearance,
An upper surface provided with a first extension extending beyond the outdoor surface of the door and a second extension extending beyond the interior surface of the door, and an exterior surface of the door on the upper end surface of the door. A flame flow resistance member comprising an outdoor hanging side facing away from the part and an indoor hanging side facing away from the indoor side surface of the door body is provided,
A part of the upper case is composed of an inspection cover that forms the indoor-side finding surface and the indoor-side lower surface of the upper case,
The second extension portion extends toward the inspection cover indoors such that the indoor-side hanging side faces the inspection cover with a clearance therebetween, and
The flame generated above the door body is separated from the door body by the upper surface of the second extension,
The inspection cover includes a cross member extending in an opening width direction inside a corner formed by the indoor-side finding surface and the indoor-side lower surface,
The indoor side hanging side is opposed to the cross member with a clearance,
Sliding door device.

In a sliding door device in which an upper end portion of a door body opens and closes and moves while being received in an upper case with a clearance,
An upper surface provided with a first extension extending beyond the outdoor surface of the door and a second extension extending beyond the interior surface of the door, and an exterior surface of the door on the upper end surface of the door. A flame flow resistance member comprising an outdoor hanging side facing away from the part and an indoor hanging side facing away from the indoor side surface of the door body is provided,
A part of the upper case is composed of an inspection cover that forms the indoor-side finding surface and the indoor-side lower surface of the upper case,
The second extension portion extends toward the inspection cover indoors such that the indoor-side hanging side faces the inspection cover with a clearance therebetween, and
The flame generated above the door body is separated from the door body by the upper surface of the second extension,
On the upper surface of the flame flow resistance member, a thermal expansion refractory member is provided at a tip of the first extension, and a rising side extending upward is formed at a tip of the second extension.
Sliding door device.

In a sliding door device in which an upper end portion of a door body opens and closes and moves while being received in an upper case with a clearance,
An upper surface provided with a first extension extending beyond the outdoor surface of the door and a second extension extending beyond the interior surface of the door, and an exterior surface of the door on the upper end surface of the door. A flame flow resistance member comprising an outdoor hanging side facing away from the part and an indoor hanging side facing away from the indoor side surface of the door body is provided,
A part of the upper case is composed of an inspection cover that forms the indoor-side finding surface and the indoor-side lower surface of the upper case,
The second extension portion extends toward the inspection cover indoors such that the indoor-side hanging side faces the inspection cover with a clearance therebetween, and
The flame generated above the door body is separated from the door body by the upper surface of the second extension,
A support side for supporting a rail is located above the first extension,
The first extension portion is provided with a thermal expansion refractory member,
Sliding door device.

In a sliding door device in which an upper end portion of a door body opens and closes and moves while being received in an upper case with a clearance,
An upper surface provided with a first extension extending beyond the outdoor surface of the door and a second extension extending beyond the interior surface of the door, and an exterior surface of the door on the upper end surface of the door. A flame flow resistance member comprising an outdoor hanging side facing away from the part and an indoor hanging side facing away from the indoor side surface of the door body is provided,
A part of the upper case is composed of an inspection cover that forms the indoor-side finding surface and the indoor-side lower surface of the upper case,
The second extension portion extends toward the inspection cover indoors such that the indoor-side hanging side faces the inspection cover with a clearance therebetween, and
The flame generated above the door body is separated from the door body by the upper surface of the second extension,
The door end side end of the upper surface of the flame flow resistance member projects from the door end side end surface of the door body,
A rising side is formed at the door end side end, and a thermal expansion refractory member is provided along a lower end of the rising side.
Sliding door device.

In a sliding door device in which an upper end portion of a door body opens and closes and moves while being received in an upper case with a clearance,
An upper surface provided with a first extension extending beyond the outdoor surface of the door and a second extension extending beyond the interior surface of the door, and an exterior surface of the door on the upper end surface of the door. A flame flow resistance member comprising an outdoor hanging side facing away from the part and an indoor hanging side facing away from the indoor side surface of the door body is provided,
A part of the upper case is composed of an inspection cover that forms the indoor-side finding surface and the indoor-side lower surface of the upper case,
The second extension portion extends toward the inspection cover indoors such that the indoor-side hanging side faces the inspection cover with a clearance therebetween, and
The flame generated above the door body is separated from the door body by the upper surface of the second extension,
An indoor-side rising edge and an outdoor-side rising edge are formed on the indoor-side lower surface and the outdoor-side lower surface of the upper case, respectively, and an upper end portion of a door body is formed in a horizontally elongated opening between the indoor-side rising edge and the outdoor-side rising edge. Is accepted with clearance,
The height dimension of the indoor-side hanging side of the flame flow resistance member, the outdoor-side hanging side is at least twice the height dimension of the indoor-side rising side that forms the horizontally elongated opening, and the outdoor-side rising side.
Sliding door device.

A rising edge extending upward is formed in the second extension portion.
The sliding door device according to claim 1, 2, 4 to 6.

On the indoor-side lower surface, a thermal expansion refractory member is provided immediately below a lower end of the indoor-side hanging side,
The sliding door device according to claim 1.

An outdoor lower surface is located below the outdoor drooping side,
On the lower surface of the outdoor side, a thermal expansion refractory member is provided immediately below a lower end of the outdoor side hanging side,
The sliding door device according to claim 1.