JP2022126037A - Fireproof structure of upper frame of sliding door - Google Patents

Fireproof structure of upper frame of sliding door Download PDF

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JP2022126037A
JP2022126037A JP2021023875A JP2021023875A JP2022126037A JP 2022126037 A JP2022126037 A JP 2022126037A JP 2021023875 A JP2021023875 A JP 2021023875A JP 2021023875 A JP2021023875 A JP 2021023875A JP 2022126037 A JP2022126037 A JP 2022126037A
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door
upper frame
piece
inspection cover
locking piece
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雄治 山本
Yuji Yamamoto
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Sanwa Shutter Corp
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Abstract

To prevent formation of a gap in an upper frame that is detrimental to fire protection when a door body of a sliding door is in a fully closed position.SOLUTION: An upper frame 3 of a suspended sliding door is made up of an upper frame body 3' and an inspection cover 4. The inspection cover 4 includes a supported portion (upper end portions of a face 40 and horizontal piece 41) formed at the upper end of the face 40 and a plurality of rising engagement pieces 42. The upper frame body 3' includes a rising support piece 353 that contacts and supports the supported portion of the inspection cover 4, and a contacting portion 351' that the rising engagement pieces 42 contact from the inside. One or more combustible elements are provided inside the upper frame 3. The inspection cover 4, which includes a first fastening piece 42A located on the door end side of a door end-side suspension wheel unit 66 of a door body 6 in a fully closed position, a second fastening piece 42B located a door tail side of a door tail-side suspension wheel unit 66, and a third fastening piece 42C located between the door end-side suspension wheel unit 66 and the door tail-side suspension wheel unit 66, maintains the contact between the rising support piece 353 and the supported portion in the vicinity of the combustible elements.SELECTED DRAWING: Figure 1

Description

本発明は、引戸の上枠の防火構造に係り、詳しくは、点検カバーを備えた上枠の防火構造に関するものである。 TECHNICAL FIELD The present invention relates to a fire prevention structure for an upper frame of a sliding door, and more particularly to a fire prevention structure for an upper frame provided with an inspection cover.

上吊り引戸は、扉体の上端部に設けた左右の吊り車ユニットのローラがレールを走行することで左右方向にスライド移動して開口部を開閉するものであり、開口部上方に位置して、レールを含む移動機構が設けてある。このような上吊り引戸においては、部材の取付やメンテナンスのために、開口部上方の上枠を、上枠本体と、上枠本体に対して着脱自在の点検カバーと、から構成している。このような点検カバーを備えた上枠の構造は、例えば、特許文献1に開示されている。 The upper hanging sliding door opens and closes the opening by moving the rollers of the left and right suspension wheel units provided at the upper end of the door body along rails to slide in the left and right direction. A movement mechanism including rails is provided. In such an overhead sliding door, the upper frame above the opening is composed of an upper frame main body and an inspection cover detachably attached to the upper frame main body for mounting members and maintenance. A structure of an upper frame provided with such an inspection cover is disclosed in Patent Document 1, for example.

このような上吊り引戸を防火設備として使用したい場合がある。上枠内には可燃要素がある。例えば、扉体の走行時の静音性の観点から、樹脂製のローラを採用する場合が多く、火災等の熱の影響でローラの樹脂が溶解して着火するおそれがある。移動機構には、樹脂製要素が用いられることが多く、これらの樹脂製要素が火災時の熱で溶解して着火するおそれもある。防火設備においては、これらの可燃要素が着火したとしても、上枠外部に炎が出ないことが要求される。 There is a case where it is desired to use such a hanging sliding door as fire prevention equipment. Within the upper frame is a combustible element. For example, from the viewpoint of quietness when the door body is running, resin rollers are often used, and there is a risk that the resin of the rollers will melt and ignite due to the heat of a fire or the like. Resin elements are often used in the moving mechanism, and these resin elements may melt and ignite due to the heat of a fire. In fire prevention equipment, even if these combustible elements are ignited, it is required that flames do not appear outside the upper frame.

ここで、特許文献1に開示されているような点検カバーを備えた上枠では、火災時の熱によって、点検カバーが変形して、点検カバーと上枠本体との間に防火上不利な隙間が形成されるおそれがある。この状態で上枠内部の可燃要素が着火すると、上記隙間から炎が出てくるおそれがある。なお、特許文献1には、防火性能については一切言及されていない。
特許第4842073号
Here, in an upper frame provided with an inspection cover as disclosed in Patent Document 1, the inspection cover is deformed by heat during a fire, resulting in a gap between the inspection cover and the upper frame main body that is disadvantageous in terms of fire prevention. may be formed. If the combustible element inside the upper frame is ignited in this state, there is a risk that the flame will come out from the gap. Note that Patent Literature 1 does not mention fireproof performance at all.
Patent No. 4842073

本発明は、引戸の扉体が全閉姿勢にある時に、上枠に防火上不利な隙間が形成されることを防止することを目的とするものである。 SUMMARY OF THE INVENTION It is an object of the present invention to prevent a gap from being formed in an upper frame, which is disadvantageous in terms of fire prevention, when a door body of a sliding door is in a fully closed position.

本発明が採用した技術手段は、
上吊り引戸の上枠は、上枠本体と、前記上枠本体に着脱可能に取り付けられた点検カバーと、からなり、
前記点検カバーは、上枠の第1側見付面を形成する面部と、前記面部の上端に長さ方向に亘って形成された被支承部と、前記被支承部の長さ方向の複数箇所において立ち上がり形成された複数の係止片と、を備え、
前記上枠本体の上面の第1側部位は、前記点検カバーの前記被支承部に当接して支承する支承片と、前記点検カバーの前記係止片が内側から当接することで、前記被支承片と前記支承部の当接状態を維持する被当接部と、を備えた被装着部を備え、
上枠内には、全閉姿勢にある扉体の戸先側吊車の近傍に位置して1つ以上の可燃要素が設けてあり、全閉姿勢にある扉体の戸尻側吊車の近傍に位置して1つ以上の可燃要素が設けてあり、
前記複数の係止片は、全閉姿勢にある扉体の戸先側吊車の戸先側に位置する第1係止片と、全閉姿勢にある扉体の戸尻側吊車の戸尻側に位置する第2係止片と、全閉姿勢にある扉体の戸先側吊車と戸尻側吊車の間に位置する第3係止片と、を含み、前記可燃要素の近傍における前記支承片と前記被支承部の当接状態を維持する、
引戸の上枠の防火構造、である。
1つの態様では、「第1側」は室内側である。
The technical means adopted by the present invention are:
The upper frame of the hanging sliding door comprises an upper frame main body and an inspection cover detachably attached to the upper frame main body,
The inspection cover includes a surface portion forming a first side viewing surface of the upper frame, a supported portion formed on the upper end of the surface portion along the length direction, and a plurality of positions along the length direction of the supported portion. and a plurality of locking pieces formed to rise in
The first side portion of the upper surface of the upper frame main body is supported by the support piece that abuts and supports the supported portion of the inspection cover and the locking piece of the inspection cover that abuts from the inside so that the supported portion is supported. A mounted portion including a piece and a contacted portion that maintains the contact state of the support portion,
One or more combustible elements are provided in the upper frame in the vicinity of the end-side suspension wheel of the door body in the fully closed position, and in the vicinity of the end-side suspension wheel of the door body in the fully closed position. one or more combustible elements located at
The plurality of locking pieces include a first locking piece located on the door end side of the door end side hanger of the door body in the fully closed posture, and a door end side end of the door end side hanger of the door body in the fully closed posture. and a third locking piece positioned between the end-side suspension wheel and the trailing-side suspension wheel of the door body in the fully closed position, and the support in the vicinity of the combustible element maintaining a state of contact between the piece and the supported portion;
It is the fireproof structure of the upper frame of the sliding door.
In one aspect, the "first side" is the indoor side.

1つの態様では、前記被支承部は、前記面部の上端部位と、前記面部の上端に形成された水平片と、からなり、前記水平片の前記係止片に対応する部位は幅広部となっており、前記係止片は、前記幅広部に立ち上がり形成されており、
前記支承片は、前記面部の前記上端部位に内側から当接ないし近接し、上端が前記点検カバーの前記水平片に下方から当接して支承する。
In one aspect, the supported portion includes an upper end portion of the surface portion and a horizontal piece formed at the upper end of the surface portion, and a portion of the horizontal piece corresponding to the locking piece is a wide portion. and the locking piece is formed to rise from the wide portion,
The support piece abuts or approaches the upper end portion of the surface portion from the inside, and the upper end abuts and supports the horizontal piece of the inspection cover from below.

1つの態様では、前記上枠本体の前記被装着部において、各被当接部の直下に挿入部が形成されており、
前記点検カバーは、前記係止片を略水平姿勢とした状態で、前記挿入部に正面から挿入し、下方に回動して前記係止片を前記被当接部に内側から当接ないし近接させた状態で取り付けられている。
In one aspect, in the mounted portion of the upper frame main body, an insertion portion is formed immediately below each contacted portion,
The inspection cover is inserted into the insertion portion from the front with the locking piece in a substantially horizontal position, and is rotated downward to bring the locking piece into contact with or close to the contacted portion from the inside. It is installed in the upright position.

1つの態様では、前記第1係止片は、前記点検カバーの戸先側端部に形成されており、
前記第2係止片は、前記点検カバーの戸尻側端部に形成されている。
1つの態様では、前記上枠本体の前記被装着部の戸先側端部には、戸先側挿入部が形成されており、前記戸先側挿入部の直上には、前記戸先側係止片が当接する戸先側被当接部が形成されており、
前記上枠本体の前記被装着部の戸尻側端部には、戸尻側挿入部が形成されており、前記戸尻側挿入部の直上には、前記戸尻側係止片が当接する戸尻側被当接部が形成されている。
In one aspect, the first locking piece is formed at the door tip side end of the inspection cover,
The second locking piece is formed at the door trailing end of the inspection cover.
In one aspect, a door leading side insertion portion is formed at a door leading side end portion of the mounting portion of the upper frame main body, and the door leading side engaging portion is formed directly above the door leading side inserting portion. A door end side abutted portion with which the stop piece abuts is formed,
A trailing edge side insertion portion is formed at the door trailing edge side end portion of the mounted portion of the upper frame main body, and the door trailing side locking piece abuts directly above the door trailing side insertion portion. A door tail side abutted portion is formed.

1つの態様では、前記扉体の上方には、前記第3係止片の戸先側に位置して、前記戸先側吊車及び制動装置が設けてあり、
前記戸先側吊車及び前記制動装置は可燃要素を含んでいる。
In one aspect, above the door body, the door tip side suspension wheel and the braking device are provided on the door tip side of the third locking piece,
The door end hanger and the braking device contain combustible elements.

1つの態様では、前記扉体の上方には、前記第3係止片の戸尻側に位置して、前記戸尻側吊車及び制動装置が設けてあり、
前記戸尻側吊車及び前記制動装置は可燃要素を含んでいる。
In one aspect, above the door body, the trailing end side suspension wheel and the braking device are provided on the door trailing side of the third locking piece,
The trailing wheel and the braking device contain combustible elements.

1つの態様では、前記上枠内には、前記第3係止片の近傍から戸先側に位置して、可燃要素である樹脂製ラックが設けてある。 In one aspect, a resin rack, which is a combustible element, is provided in the upper frame so as to be positioned on the door tip side from the vicinity of the third locking piece.

本発明において、点検カバーの複数の係止片が内側から上枠本体の被当接部に当接することで、点検カバーの上端部位の熱変形に対抗し、複数の係止片の間において、上枠内の可燃要素の近傍における支承片(上枠本体)と被支承部(点検カバー)の当接状態を維持し、点検カバーの上端部位と上枠本体の被装着部との間に防火上不利な隙間が形成されることを防止し、上枠内で可燃要素が着火した場合であっても、上枠の上端部位から炎が外部に出ることを防止する。 In the present invention, the plurality of locking pieces of the inspection cover abut against the abutted portion of the upper frame main body from the inside, thereby resisting thermal deformation of the upper end portion of the inspection cover, and between the plurality of locking pieces, Maintaining the contact state between the support piece (upper frame body) and the supported part (inspection cover) in the vicinity of the combustible element in the upper frame, and preventing fire between the upper end part of the inspection cover and the attachment part of the upper frame body To prevent formation of a disadvantageous gap and to prevent flames from escaping from the upper end portion of an upper frame even when a combustible element is ignited in the upper frame.

本実施形態に係る引戸(開口部全閉時)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 (when an opening is fully closed) which concerns on this embodiment from the indoor side. 本実施形態に係る引戸の縦断面図(引っ掛け部分)であり、左側が室内側、右側が室外側である。It is a vertical cross-sectional view (hook part) of the sliding door which concerns on this embodiment, and the left side is an indoor side, and the right side is an outdoor side. 本実施形態に係る引戸の横断面図であり、上側が室外側、下側が室内側である。It is a cross-sectional view of the sliding door according to this embodiment, the upper side is the outdoor side, and the lower side is the indoor side. 本実施形態に係る引戸の上方部位の縦断面図(支承部分)であり、左側が室内側、右側が室外側である。It is a vertical cross-sectional view (supporting portion) of the upper portion of the sliding door according to the present embodiment, the left side being the indoor side and the right side being the outdoor side. (A)、(B)は、それぞれ、本実施形態に係る引戸の上方部位を示す正面図であって、点検カバーを取り外した状態(上枠本体)を示しており。(A) and (B) are respectively front views showing the upper part of the sliding door according to the present embodiment, showing a state (upper frame body) with the inspection cover removed. 図5と類似の図であり、さらに他の実施形態を示している。FIG. 6 is a view similar to FIG. 5 and showing yet another embodiment; 点検カバーの断面図であって、左図は、引っ掛け部における断面図、右図は、支承部における断面図である。It is a cross-sectional view of the inspection cover, the left figure is a cross-sectional view of the hook portion, and the right figure is a cross-sectional view of the support portion. 点検カバーの上面図及び正面図である。4A and 4B are a top view and a front view of an inspection cover; FIG. 上枠本体に対する点検カバーの取付を説明する図であり、上図は、点検カバーの引っ掛け部と上枠本体の挿入部との取り合い、下図は、点検カバーの支承部と上枠本体の凹部との取り合いを示している。Fig. 4 is a diagram for explaining how to attach the inspection cover to the upper frame main body. The upper figure shows the connection between the hook portion of the inspection cover and the insertion portion of the upper frame main body, and the lower figure shows the support portion of the inspection cover and the concave portion of the upper frame main body. indicates a scramble for 火災時の熱による上枠の変形に伴う隙間の発生を示す概念図である。FIG. 4 is a conceptual diagram showing the generation of gaps due to deformation of the upper frame due to heat during fire;

本発明の実施形態について図面を参照しながら説明する。本実施形態に係る上吊り引戸は、手動式の片引き引戸であって、防火設備として用いられ得る。図1は、本実施形態に係る引戸(開口部全閉時)をメンテナンス側(本実施形態では室内側)から見た正面図、図2は、 本実施形態に係る引戸の縦断面図(引っ掛け部分)であり、左側が室内側、右側が室外側であり、図3は、本実施形態に係る引戸の横断面図であり、上側が室外側、下側が室内側である。図4は、 本実施形態に係る引戸の上方部位の縦断面図(支承部分)であり、左側が室内側、右側が室外側である。 An embodiment of the present invention will be described with reference to the drawings. The hanging sliding door according to the present embodiment is a manual single-sliding sliding door, and can be used as fire prevention equipment. FIG. 1 is a front view of the sliding door according to the present embodiment (when the opening is fully closed) viewed from the maintenance side (inside the room in this embodiment), and FIG. The left side is the indoor side and the right side is the outdoor side. FIG. 3 is a cross-sectional view of the sliding door according to this embodiment, the upper side is the outdoor side and the lower side is the indoor side. FIG. 4 is a longitudinal sectional view (supporting portion) of the upper portion of the sliding door according to this embodiment, the left side being the indoor side and the right side being the outdoor side.

引戸は、戸先側縦枠1と、戸尻側縦枠2と、上ケースないし上枠3と、から形成された引戸枠を備えている。上枠3は、上枠本体3´と点検カバー4とから構成されている。戸先側縦枠1、戸尻側縦枠2、上枠本体3´は躯体に設けてあり、上枠3(上枠本体3´及び点検カバー4)は、戸先側縦枠1の上端部位と戸尻側縦枠2の上端部位の間に亘って延びている。戸先側縦枠1と戸尻側縦枠2の間の中間部位には、室外側に位置して中間縦枠5が設けてある。 The sliding door has a sliding door frame formed by a door tip side vertical frame 1, a door trailing side vertical frame 2, and an upper case or upper frame 3. The upper frame 3 is composed of an upper frame main body 3' and an inspection cover 4. - 特許庁The door end side vertical frame 1, the door bottom side vertical frame 2, and the upper frame main body 3' are provided on the frame, and the upper frame 3 (upper frame main body 3' and inspection cover 4) is the upper end of the door end side vertical frame 1. and the upper end portion of the door tail side vertical frame 2. - 特許庁An intermediate vertical frame 5 is provided on the outdoor side at an intermediate portion between the door tip side vertical frame 1 and the door bottom side vertical frame 2. - 特許庁

戸先側縦枠1と戸尻側縦枠2間の空間の戸先側半部が扉体6によって開閉される開口部となっており、戸尻側半部が扉体6の収納部となっている。より具体的には、開口部は、戸先側縦枠1と、中間縦枠5と、上枠3の戸先側半部と、床面FLとで形成された縦長方形状の空間であり、収納部は、戸尻側縦枠2と、中間縦枠5と、上枠3の戸尻側半部と、床面FLとで形成された縦長方形状の空間である。 A door tip side half of the space between the door tip side vertical frame 1 and the door trailing side vertical frame 2 is an opening that is opened and closed by the door body 6, and the door trailing side half is a storage part for the door body 6. It's becoming More specifically, the opening is a vertical rectangular space formed by the door tip side vertical frame 1, the intermediate vertical frame 5, the half of the door tip side of the upper frame 3, and the floor surface FL. The storage section is a vertical rectangular space formed by the door bottom side vertical frame 2, the intermediate vertical frame 5, the half of the door bottom side of the upper frame 3, and the floor surface FL.

本実施形態に係る戸先側縦枠1は、室内側見付面10と、室外側見付面11と、開口部に面する見込面12と、を備え、見込面12は、開口部全閉時に扉体6の戸先側部位が収まる凹部120と、室内側部位121と、室外側部位122とを備え、室外側部位122の見込寸法は、室内側部位121の見込寸法よりも大きく、戸先側縦枠1の室外側部位は開口部に対して室外側に突出する室外側突出部となっている。室外側突出部において、見込面12の室外側部位122に対向する側には壁体Wが位置している。 The door leading side vertical frame 1 according to this embodiment includes an indoor viewing surface 10, an outdoor viewing surface 11, and a viewing surface 12 facing the opening. It comprises a recess 120 in which the door tip side part of the door body 6 is accommodated when closed, an indoor side part 121, and an outdoor side part 122, and the estimated size of the outdoor side part 122 is larger than the expected size of the indoor side part 121, The outdoor side portion of the door leading side vertical frame 1 is an outdoor side protruding portion that protrudes to the outdoor side with respect to the opening. A wall body W is positioned on the side of the projection surface 12 facing the outdoor side portion 122 in the outdoor side projecting portion.

本実施形態に係る戸尻側縦枠2は、室内側見付面20と、収納部に面する見込面21と、を備えている。室内側見付面20の室外側部位には壁体Wが位置している。戸先側縦枠1の室内側見付面10と戸尻側縦枠2の室内側見付面20は面一である。戸尻側縦枠2の見込面21には、戸当たり部22が設けてある。 The door trailing edge side vertical frame 2 according to the present embodiment includes an interior side viewing surface 20 and a viewing surface 21 facing the storage section. A wall body W is positioned on the outdoor side portion of the indoor side viewing surface 20 . The interior facing surface 10 of the door tip side vertical frame 1 and the interior facing surface 20 of the door bottom side vertical frame 2 are flush with each other. A doorstop part 22 is provided on a projection surface 21 of the door tail side vertical frame 2. - 特許庁

本実施形態に係る中間縦枠5は、扉体6の移動経路(開口部)に対して全体が室外側に位置しており、室内側見付面50と、室外側見付面51と、見込面52と、を備えている。中間縦枠5の見込面52は、戸先側縦枠1の見込面12の室外側部位122に対向している。戸先側縦枠1の室外側見付面11と、中間縦枠5の室外側見付面51は面一である。中間縦枠5の見込面52は、室内側見付面50を超えて室内側に延びており、先端には室内側見付面50に対向する相じゃくり片53が形成されてており、室内側見付面50と相じゃくり片53との間に隙間530が形成されている。 The intermediate vertical frame 5 according to the present embodiment is entirely positioned on the outdoor side with respect to the moving path (opening) of the door 6, and has an indoor-side viewing surface 50, an outdoor-side viewing surface 51, a viewing surface 52; The projected surface 52 of the intermediate vertical frame 5 faces the outdoor side portion 122 of the projected surface 12 of the door-end vertical frame 1 . The outdoor facing surface 11 of the door leading side vertical frame 1 and the outdoor facing surface 51 of the intermediate vertical frame 5 are flush with each other. The projection surface 52 of the intermediate vertical frame 5 extends beyond the indoor-side viewing surface 50 toward the indoor side, and at the tip thereof, a mating strip 53 facing the indoor-side viewing surface 50 is formed. A gap 530 is formed between the room-side viewing surface 50 and the pairing piece 53 .

扉体6は、室内側見付面60、室外側見付面61、戸先側端面62、戸尻側端面63、上端部64、下端部65を備えている。扉体6の上端部64には、戸先側部位および戸尻側部位に位置して吊車ユニット66が設けてあり、吊車ユニット66は樹脂製ローラ67を備えている。扉体6は、上端部64に設けた吊車ユニット66の樹脂製ローラ67が上枠3内のレール7上を転動することで、左右方向に移動して開口部を開閉するようになっている。 The door body 6 has an indoor viewing surface 60 , an outdoor viewing surface 61 , a door tip side end face 62 , a door bottom side end face 63 , an upper end portion 64 and a lower end portion 65 . Suspension wheel units 66 are provided on the upper end portion 64 of the door 6 at the door tip side portion and the door bottom side portion. The door 6 moves in the left-right direction to open and close the opening by rolling the resin roller 67 of the suspension wheel unit 66 provided at the upper end 64 on the rail 7 in the upper frame 3 . there is

扉体6の下端部65は凹状となっており、内部には、振れ止め用レール650が設けてあり、扉体6の移動時に、開口部の戸尻側に位置して床面FLに設けたローラ651が振れ止め用レール650に摺接するようになっている。 The lower end portion 65 of the door body 6 is concave, and an anti-vibration rail 650 is provided inside. A roller 651 is in sliding contact with the anti-vibration rail 650 .

扉体6の上端部64には、扉体6の室内側見付面60よりも室内側に突出するように断面視L形状の相じゃくり片640が設けてあり、相じゃくり片640は、水平片6400と垂下片6401を備えている。扉体6の上端部64には、さらに、断面視コ字形状の板状体641が設けてあり、板状体641は、水平部6410と、水平部6410の幅方向両端の立ち上がり片6411、6411を備えている。板状体641の水平部6410の見込寸法は、扉体6の見込寸法(扉厚)よりも大きく、板状体641の立ち上がり片6411、6411は、それぞれ、扉体6の室内側見付面60よりも僅かに室内側、室外側見付面61よりも僅かに室外側に位置している。扉体6の戸尻側端面63には、扉体6の室外側見付面61よりも室外側に突出するように平面視L形状の相じゃくり片630が設けてあり、相じゃくり片630は、見込片6300と、見込片6300の先端から戸先側に向かって延びる見付片6301とからなる。 An upper end portion 64 of the door body 6 is provided with a side wall piece 640 having an L shape in cross section so as to protrude toward the indoor side from the room-side viewing surface 60 of the door body 6. The side wall piece 640 is , a horizontal piece 6400 and a hanging piece 6401 . The upper end portion 64 of the door 6 is further provided with a plate-like body 641 having a U-shaped cross section. 6411 is provided. The projected dimension of the horizontal portion 6410 of the plate-like body 641 is larger than the projected dimension (door thickness) of the door body 6, and the rising pieces 6411, 6411 of the plate-shaped body 641 are located on the interior side facing surface of the door body 6, respectively. It is located slightly on the indoor side of 60 and slightly on the outdoor side of outdoor viewing surface 61 . An end face 63 of the door body 6 on the door trailing edge side is provided with a side wall piece 630 having an L shape in a plan view so as to protrude to the outdoor side from the outdoor side face 61 of the door body 6. 630 is composed of a projection piece 6300 and a projection piece 6301 extending from the tip of the projection piece 6300 toward the door.

上枠3は、上枠本体3´と、点検カバー4と、から構成されており、本実施形態に係る点検カバー4は、上枠3の室内側部位を構成している。上枠本体3´は躯体に取り付けてあり、点検カバー4は、上枠本体3´に対して着脱可能に取り付けられる。上枠本体3´、点検カバー4は共に戸先側縦枠1の上端部位と戸尻側縦枠2の上端部位の間に亘って延びる長手部材である。上枠本体3´の長さ方向両端部は、戸先側縦枠1の見込面12の上端部位、戸尻側縦枠2の見込面21の上端部位にそれぞれ突き当たっており、点検カバー4の長さ方向両端部は、戸先側縦枠1の見込面12の上端部位、戸尻側縦枠2の見込面21の上端部位にそれぞれ近接している。 The upper frame 3 is composed of an upper frame main body 3' and an inspection cover 4, and the inspection cover 4 according to this embodiment constitutes a portion of the upper frame 3 on the indoor side. The upper frame main body 3' is attached to the frame, and the inspection cover 4 is detachably attached to the upper frame main body 3'. Both the upper frame main body 3' and the inspection cover 4 are longitudinal members extending between the upper end portion of the door tip side vertical frame 1 and the upper end portion of the door trailing side vertical frame 2. As shown in FIG. Both ends in the length direction of the upper frame main body 3' abut against the upper end portion of the projected surface 12 of the door tip side vertical frame 1 and the upper end portion of the projected surface 21 of the door bottom side vertical frame 2, respectively. Both ends in the length direction are close to the upper end portion of the projected surface 12 of the door leading edge side vertical frame 1 and the upper end portion of the projected surface 21 of the door trailing edge side vertical frame 2 respectively.

上枠本体3´は、室外側見付部30と、上面部31と、室外側見付部30の下端に設けられ、室外側に突出する室外側枠体32と、を備えている。室外側見付部30の外面は上枠3の室外側面部300となっており、室外側見付部30の内面301には、レール7が支持されている。室外側枠体32は、室内側見付面320と、室外側見付面321と、水平状の下面322と、を備えている。室外側見付面321は、戸先側縦枠1の室外側見付面11、中間縦枠5の室外側見付面51と略面一であるが、図示の態様では僅かに室外側に位置している。戸先側縦枠1の室外側部位と、中間縦枠5と室外側枠体32と、から開口部の室外側に位置して三方枠が形成されている。 The upper frame main body 3' includes an outdoor side extension portion 30, an upper surface portion 31, and an outdoor side frame body 32 provided at the lower end of the outdoor side extension portion 30 and protruding to the outdoor side. The outer surface of the outdoor side finding portion 30 is the outdoor side side portion 300 of the upper frame 3 , and the rail 7 is supported on the inner surface 301 of the outdoor side finding portion 30 . The outdoor frame 32 has an indoor viewing surface 320 , an outdoor viewing surface 321 and a horizontal lower surface 322 . The outdoor facing surface 321 is substantially flush with the outdoor facing surface 11 of the door top vertical frame 1 and the outdoor facing surface 51 of the intermediate vertical frame 5, but is slightly on the outdoor side in the illustrated embodiment. positioned. A three-way frame is formed on the outdoor side of the opening by the outdoor side portion of the door leading side vertical frame 1, the intermediate vertical frame 5 and the outdoor side frame body 32. - 特許庁

上枠本体3´の上面部31の室内側部位には、点検カバー4の上端部位を着脱可能に取り付けるための被装着部が長さ方向に亘って設けてある。被装着部は、点検カバー4の被支承部(面部40の上端部位、水平片41)を支承する支承片(立ち上がり支承片353)と、点検カバー4の引っ掛け部(立ち上がり係止片42)が当接する被当接部(被当接部351´)と、を備えている。被装着部の構成について詳細に説明する。後述するように、立ち上がり係止片42A、42B、42Cが被当接部351´に当接して引っ掛け部分38A、38B、38Cが形成される。 A mounting portion for detachably mounting the upper end portion of the inspection cover 4 is provided over the length direction on the interior side portion of the upper surface portion 31 of the upper frame main body 3'. The mounted portion includes a support piece (rising support piece 353) that supports the supported portion of the inspection cover 4 (the upper end portion of the surface portion 40, the horizontal piece 41) and a hook portion (rising locking piece 42) of the inspection cover 4. and a contacted portion (contacted portion 351′) to be contacted. The configuration of the mounting part will be described in detail. As will be described later, the rising locking pieces 42A, 42B, and 42C abut on the abutted portion 351' to form hooking portions 38A, 38B, and 38C.

上枠本体3´の上面部31の室内側部位には、上枠3の室内側見付面の上端部位を形成する垂下片33と、垂下片33の下端から上枠3内部に向かって延びる水平片34と、が形成されており、上面部31の下面の室内側部位には、被係止片35が設けてある。 The indoor part of the upper surface part 31 of the upper frame main body 3' has a hanging piece 33 forming the upper end part of the room-inside viewing surface of the upper frame 3, and a hanging piece 33 extending from the lower end of the hanging piece 33 toward the inside of the upper frame 3. A horizontal piece 34 is formed, and a locked piece 35 is provided on the lower surface of the upper surface portion 31 on the inside of the room.

被係止片35は、上面部31の下面に固定される上側水平片350と、上側水平片350の室内側端部から垂下する垂直片351と、垂直片351の下端から水平片34に対向して室内側に延びる下側水平片352と、下側水平片352の先端の立ち上がり支承片353と、からなる。水平片34の先端は垂直片351に当接しており、下側水平片352は、水平片34の下方に位置して、水平片34に対向している。立ち上がり支承片353は、垂下片33に対して僅かに上枠3の内部側に位置している。 The engaged piece 35 is composed of an upper horizontal piece 350 fixed to the lower surface of the upper surface portion 31, a vertical piece 351 hanging down from the room-side end of the upper horizontal piece 350, and facing the horizontal piece 34 from the lower end of the vertical piece 351. It consists of a lower horizontal piece 352 extending into the room and a rising support piece 353 at the tip of the lower horizontal piece 352 . The tip of the horizontal piece 34 is in contact with the vertical piece 351 , and the lower horizontal piece 352 is located below the horizontal piece 34 and faces the horizontal piece 34 . The rising support piece 353 is located slightly inside the upper frame 3 with respect to the hanging piece 33 .

被係止片35の下半部(垂直片351の下半部、下側水平片352、立ち上がり支承片353)は、長さ方向の複数箇所において切り欠かれて挿入部35A、35B、35Cが形成されており、挿入部35A、35B、35Cの直上に、垂直片351の上半部から被当接部351´が形成されている。 The lower half of the engaged piece 35 (the lower half of the vertical piece 351, the lower horizontal piece 352, and the rising support piece 353) is notched at a plurality of locations in the longitudinal direction to form insertion portions 35A, 35B, and 35C. A contact portion 351' is formed from the upper half of the vertical piece 351 directly above the insertion portions 35A, 35B, and 35C.

図5、図6に示すように、本実施形態では、挿入部35Aは、上枠本体3´(被係止片35)の戸先側端部に形成されており、挿入部35Bは、上枠本体3´(被係止片35)の戸尻側端部に形成されており、挿入部35Cは、上枠本体3´(被係止片35)の戸先側半部(開口部の上方に位置する部位)、より具体的には、全閉姿勢の扉体6の戸先側吊車ユニット66と、戸尻側吊車ユニット66の間に位置して形成されている。すなわち、本実施形態に係る被係止片35には、戸先側端部、戸尻側端部、全閉姿勢の扉体6の戸先側吊車ユニット66と、戸尻側吊車ユニット66の間に位置して、3つの被当接部351´が形成されている。 As shown in FIGS. 5 and 6, in this embodiment, the insertion portion 35A is formed at the end of the upper frame main body 3' (locked piece 35) on the door tip side, and the insertion portion 35B is formed at the upper The insertion portion 35C is formed at the end of the frame main body 3' (locked piece 35) on the side of the door trailing edge, and the insertion portion 35C is located at the front end side half of the upper frame main body 3' (locked piece 35) (of the opening). More specifically, it is positioned between the front end side suspension wheel unit 66 and the rear end side suspension wheel unit 66 of the door body 6 in the fully closed posture. That is, the to-be-latched piece 35 according to the present embodiment includes the door tip side end, the door tail side end, the door tip side hanger unit 66 of the door body 6 in the fully closed posture, and the door tail side hanger unit 66. Three abutted portions 351' are formed between them.

上枠本体3´の室内側部位の上端には、水平片34と立ち上がり支承片353の上端とから、幅方向に水平状に延びる凹部36が形成されており、凹部36の両側に位置して、挿入部35A、35B、35C及び被当接部351´が形成されている。 A recess 36 extending horizontally in the width direction from the horizontal piece 34 and the upper end of the rising support piece 353 is formed at the upper end of the room-side portion of the upper frame main body 3'. , insertion portions 35A, 35B, 35C and a contact portion 351' are formed.

図7、図8に示すように、点検カバー4の上端部位は、上枠3の室内側見付面を形成する面部40と、面部40の上端に形成され、室外側に延びる水平片41と、を備え、水平片41の長さ方向の複数部位は室外側に水平に延びる幅広部41´(幅広部41A´、41B´、41C´)となっており、幅広部41A´、41B´、41C´の端部において複数の立ち上がり係止片42(42A、42B、42C)が立ち上がり形成されている。面部40の下端部位は、面部40の下端に形成された水平片43と、水平片の先端の立ち上がり片44と、を備え、水平片43及び立ち上がり片44には、下端片45が固定されている。 As shown in FIGS. 7 and 8, the upper end portion of the inspection cover 4 includes a surface portion 40 forming the interior side viewing surface of the upper frame 3 and a horizontal piece 41 formed at the upper end of the surface portion 40 and extending to the outside of the room. , and a plurality of portions in the length direction of the horizontal piece 41 are wide portions 41' (wide portions 41A', 41B', 41C') extending horizontally to the outdoor side, and the wide portions 41A', 41B', A plurality of rising locking pieces 42 (42A, 42B, 42C) are formed at the ends of 41C'. The lower end portion of the surface portion 40 includes a horizontal piece 43 formed at the lower end of the surface portion 40 and a rising piece 44 at the tip of the horizontal piece. A lower end piece 45 is fixed to the horizontal piece 43 and the rising piece 44. there is

点検カバー4の上端部位は、面部40の上端部位と水平片41とからなる被支承部と、被支承部の長さ方向の複数箇所において形成された引っ掛け部(立ち上がり係止片42A、42B、42C)と、を備えている。点検カバー4の被支承部は、上枠本体3´の支承片(立ち上がり支承片353)及び凹部36に対応する位置にあり、点検カバー4の複数の立ち上がり係止片42(42A、42B、42C)は、上枠本体3´の挿入部35A、35B、35C及び複数の被当接部351´にそれぞれ対応する位置に形成されている。 The upper end portion of the inspection cover 4 includes a supported portion composed of the upper end portion of the surface portion 40 and the horizontal piece 41, and hook portions (rising locking pieces 42A, 42B, 42C) and The portion to be supported of the inspection cover 4 is located at a position corresponding to the support piece (rising support piece 353) and the recess 36 of the upper frame main body 3', and the plurality of rising locking pieces 42 (42A, 42B, 42C) of the inspection cover 4 are located. ) are formed at positions corresponding to the insertion portions 35A, 35B, and 35C of the upper frame main body 3' and the plurality of abutted portions 351', respectively.

図8に示すように、本実施形態では、立ち上がり係止片42Aは、点検カバー4の戸先側端部に形成されており、立ち上がり係止片42Bは、点検カバー4の戸尻側端部に形成されており、立ち上がり係止片42Cは、点検カバー4の戸先側半部(開口部の上方に位置する部位)、より具体的には、全閉姿勢の扉体6の戸先側吊車ユニット66と、戸尻側吊車ユニット66の間に位置して形成されている。立ち上がり係止片42Aと立ち上がり係止片42Cの間に位置する部位、及び、立ち上がり係止片42Bと立ち上がり係止片42Cの間に位置する部位が、被支承部(面部40の上端部位と水平片41)となっている。 As shown in FIG. 8, in the present embodiment, the rising locking piece 42A is formed at the end of the inspection cover 4 on the leading edge side, and the rising locking piece 42B is formed at the trailing edge side of the inspection cover 4. , and the rising locking piece 42C is formed on the leading edge side half of the inspection cover 4 (a portion located above the opening), more specifically, on the leading edge side of the door body 6 in the fully closed position. It is positioned between the hanger unit 66 and the door trailing end side hanger unit 66. - 特許庁A portion positioned between the rising locking piece 42A and the rising locking piece 42C and a portion positioned between the rising locking piece 42B and the rising locking piece 42C are positioned horizontally with the supported portion (the upper end portion of the surface portion 40). 41).

点検カバー4は、上端部位(面部40の上端部位と水平片41とからなる被支承部、立ち上がり係止片42A、42B、42C)を介して、上枠本体3´の被装着部に着脱可能に取り付けられるようになっている。図2、図4に示すように、点検カバー4の上端部位が上枠本体3´の被装着部に取り付けられた状態において、被装着部の立ち上がり支承片353が、点検カバー4の面部40の上端部位に内側から当接ないし近接し、立ち上がり支承片353の上端が点検カバー4の水平片41に下方から当接しており、被装着部の被当接部351´には、点検カバー4の上端部位の立ち上がり係止片42(42A、42B、42C)が内側から当接ないし近接している。 The inspection cover 4 can be attached to and detached from the mounted portion of the upper frame main body 3' via the upper end portion (supported portion composed of the upper end portion of the surface portion 40 and the horizontal piece 41, and the rising locking pieces 42A, 42B, and 42C). It is designed to be attached to As shown in FIGS. 2 and 4, in a state in which the upper end portion of the inspection cover 4 is attached to the mounted portion of the upper frame body 3′, the rising supporting piece 353 of the mounted portion is positioned against the surface portion 40 of the inspection cover 4. The upper end portion of the inspection cover 4 contacts or approaches the upper end portion from the inside, and the upper end of the rising support piece 353 contacts the horizontal piece 41 of the inspection cover 4 from below. The rising locking pieces 42 (42A, 42B, 42C) at the upper end portion are in contact with or close to each other from the inside.

点検カバー4が上枠本体3´に支承されている部位である支承部分37A、37B(図1参照)においては、被支承部と支承片が当接状態(被装着部の立ち上がり支承片353が、点検カバー4の面部40の上端部位に内側から当接ないし近接し、立ち上がり支承片353の上端が点検カバー4の水平片41に下方から当接している)となって、支承部分37A、37Bに隙間が生じないようになっている。支承部分37A、37Bの両側に位置して設けた引っ掛け部分38A、38B、38C(図1参照)において、被装着部の被当接部351´に、点検カバー4の上端部位の立ち上がり係止片42A、42B、42Cが内側から当接することで、支承部分37A、37Bにおける被支承片と支承部の当接状態を維持して支承部分37A、37Bに隙間が生じることを可及的に防止する。 In the support portions 37A and 37B (see FIG. 1) where the inspection cover 4 is supported by the upper frame main body 3', the supported portion and the support piece are in contact (the rising support piece 353 of the mounted portion is in contact with the support portion). , abuts or approaches the upper end portion of the surface portion 40 of the inspection cover 4 from the inside, and the upper end of the rising support piece 353 abuts the horizontal piece 41 of the inspection cover 4 from below. so that there are no gaps between them. At the hooking portions 38A, 38B, 38C (see FIG. 1) provided on both sides of the supporting portions 37A, 37B, the rising locking pieces at the upper end portion of the inspection cover 4 are attached to the contacting portions 351' of the mounting portions. 42A, 42B, and 42C abut from the inside to maintain the abutting state between the supported piece and the supporting portion in the supporting portions 37A, 37B, thereby preventing the occurrence of gaps in the supporting portions 37A, 37B as much as possible. .

点検カバー4の下端部位に固定された下端片45は、下片450と立ち上がり片451と、立ち上がり片451の上端から下片450に対向するように折り返された上片452とからなり、立ち上がり片451には、立ち上がり片44の上方に隣接して熱膨張耐火部材46が設けてある。点検カバー4の水平片43と、上枠本体3´の室外側に設けた室外側枠体32の下面322は同じ高さに位置しており、点検カバー4の下端の立ち上がり片44と室外側枠体32の室内側見付面320との間に、扉体6の上端部位を受け入れる開口が形成されている。室外側枠体32の室内側見付面320には、熱膨張耐火部材46と対向するように熱膨張耐火部材323が設けてある。 The lower end piece 45 fixed to the lower end portion of the inspection cover 4 is composed of a lower piece 450, a rising piece 451, and an upper piece 452 folded back from the upper end of the rising piece 451 so as to face the lower piece 450. 451 is provided with a thermal expansion refractory member 46 above and adjacent to the rising piece 44 . The horizontal piece 43 of the inspection cover 4 and the lower surface 322 of the outdoor side frame 32 provided on the outdoor side of the upper frame body 3' are positioned at the same height, and the rising piece 44 at the lower end of the inspection cover 4 and the outdoor side are positioned at the same height. An opening for receiving the upper end portion of the door 6 is formed between the frame 32 and the indoor-side viewing surface 320 . A thermal expansion fireproof member 323 is provided on the indoor side face 320 of the outdoor frame 32 so as to face the thermal expansion fireproof member 46 .

図9に示すように、点検カバー4は、面部40を略水平姿勢として、先端側(上端側)の被支承部(面部40の上端部位及び水平片41)、立ち上がり係止片42(42A、42B、42C)を、上枠本体3´の室内側部位の上端の凹部36、挿入部35A、35B、35Cにそれぞれ位置合わせして、正面から挿入する。 As shown in FIG. 9, the inspection cover 4 has the surface portion 40 in a substantially horizontal posture, the portion to be supported on the tip side (upper end side) (the upper end portion of the surface portion 40 and the horizontal piece 41), the rising locking piece 42 (42A, 42B, 42C) are aligned with the concave portion 36 and the insertion portions 35A, 35B, 35C at the upper end of the room-side portion of the upper frame main body 3' and inserted from the front.

この時、点検カバー4の立ち上がり係止片42A、立ち上がり係止片42Bは、それぞれ点検カバー4の戸先側端部、戸尻側端部に形成されており、上枠本体3´の挿入部35A、挿入部35Bは、それぞれ上枠本体3´の戸先側端部、戸尻側端部に形成されているので、長さ方向(開口幅方向)の両端部同士を合わせることで、上枠本体3´に対する点検カバー4の位置合わせ作業を良好に行うことができる。上枠本体3´に対する点検カバー4の挿入時に、点検カバー4の戸先側端縁、戸尻側端縁を、それぞれ、戸先側縦枠1の見込面12の上端部位(挿入部35Aの戸先側端縁)、戸尻側縦枠2の見込面21の上端部位(挿入部35Bの戸尻側端縁)に当てることで、戸先側縦枠1の見込面12の上端部位、戸尻側縦枠2の見込面21を位置決めガイドとして用いることができる。 At this time, the rising locking piece 42A and the rising locking piece 42B of the inspection cover 4 are formed at the end of the inspection cover 4 on the front end and the rear end of the door, respectively. Since the 35A and the insertion portion 35B are formed at the door tip side end portion and the door bottom side end portion of the upper frame main body 3', respectively, by aligning both ends in the length direction (opening width direction), the upper The alignment work of the inspection cover 4 with respect to the frame main body 3' can be performed satisfactorily. When the inspection cover 4 is inserted into the upper frame main body 3', the door tip side edge and the door bottom side edge of the inspection cover 4 are respectively placed at the upper end portion of the projection surface 12 of the door tip side vertical frame 1 (insertion portion 35A of the insertion portion 35A). door tip side edge), and the upper end portion of the forecast surface 21 of the door trailing side vertical frame 2 (door trailing side edge of the insertion portion 35B) is applied to the upper end portion of the forecast surface 12 of the door trailing side vertical frame 1, The projection surface 21 of the door trailing side vertical frame 2 can be used as a positioning guide.

点検カバー4の立ち上がり係止片42A、42B、42Cを、挿入部35A、35B、35Cから上枠本体3´内に挿入した時に、立ち上がり係止片42A、42B、42Cの先端は、挿入部35A、35B、35Cの直上の被当接部351´の裏側にまで延出している。この状態から点検カバー4を水平姿勢のまま下方に移動させると、点検カバー4の面部40の先端部位(上端部位)が立ち上がり支承片353の上端に当接し、この当接部を支点として点検カバー4を、面部40が垂直姿勢となるまで下方に回動させることで、点検カバー4の上端部位が上枠本体3´の被装着部に取り付けられる。そして、点検カバー4の面部40の下端側を被固定片47に螺子48で固定することで、点検カバー4の下端部位が固定される(図2参照)。被固定片47は、戸先側縦枠1の上端部位及び戸尻側縦枠2の上端部位、あるいは、上枠本体3´に持ち出し状に設けられる。 When the rising locking pieces 42A, 42B, 42C of the inspection cover 4 are inserted into the upper frame main body 3' from the insertion portions 35A, 35B, 35C, the tips of the rising locking pieces 42A, 42B, 42C are inserted into the insertion portion 35A. , 35B, and 35C. When the inspection cover 4 is moved downward from this state while maintaining the horizontal posture, the front end portion (upper end portion) of the surface portion 40 of the inspection cover 4 rises and contacts the upper end of the support piece 353, and the inspection cover uses this contact portion as a fulcrum. 4 is rotated downward until the surface portion 40 assumes a vertical posture, so that the upper end portion of the inspection cover 4 is attached to the attached portion of the upper frame main body 3'. By fixing the lower end side of the face portion 40 of the inspection cover 4 to the fixed piece 47 with the screw 48, the lower end portion of the inspection cover 4 is fixed (see FIG. 2). The fixed piece 47 is protrudingly provided on the upper end portion of the door tip side vertical frame 1 and the upper end portion of the door bottom side vertical frame 2, or on the upper frame main body 3'.

扉体6の移動機構について説明する。上枠3の内部には、開口幅方向に延びるレール7が設けてある。本実施形態に係るレール7は上枠本体3´の室外側見付部30の内面301に設けてあり、戸先側端部は、戸先側縦枠1の見込面12に近い位置まで延びており、戸尻側端部は収納部の上方部位(少なくとも、開口部全開時における扉体6の戸尻側の吊車ユニット66に対応する位置)まで延びている。扉体6は、上端部64に設けた吊車ユニット66の樹脂製ローラ67が上枠3内のレール7上を転動することで、左右方向に移動して開口部を開閉するようになっている。本実施形態に係る上吊り引戸は手動式であり、また、本実施形態に係るレール7は、戸先側から戸尻側に向かって上方に緩やかに傾斜しており、開口部全開時で扉体6から手を離すと、扉体6が自重で閉鎖方向に移動するようになっている。 A mechanism for moving the door 6 will be described. A rail 7 extending in the width direction of the opening is provided inside the upper frame 3 . The rail 7 according to the present embodiment is provided on the inner surface 301 of the outdoor side facing portion 30 of the upper frame main body 3', and the end on the door tip side extends to a position close to the projection surface 12 of the door tip side vertical frame 1. The end portion on the trailing edge side extends to an upper portion of the storage portion (at least a position corresponding to the suspension wheel unit 66 on the trailing edge side of the door 6 when the opening is fully opened). The door 6 moves in the left-right direction to open and close the opening by rolling the resin roller 67 of the suspension wheel unit 66 provided at the upper end 64 on the rail 7 in the upper frame 3 . there is The top hanging sliding door according to the present embodiment is of a manual type, and the rail 7 according to the present embodiment is gently inclined upward from the door tip side toward the door bottom side, so that when the opening is fully open, the door When the hand is released from the body 6, the door body 6 moves in the closing direction by its own weight.

図5(A)、(B)、図6に示すように、本実施形態に係る上吊り引戸は制動機構を備えている。制動機構は吊車ユニット66に設けた制動装置8と、レール7の所定部位(戸先側部位、戸尻側部位)に設けた樹脂製ラック9と、からなり、移動中の扉体6が所定位置まで移動した時に、制動装置8のギア(図示せず)がラック9と噛合することで、制動するようになっている。吊車ユニット66の樹脂製ローラ67、樹脂製ラック9は可燃要素であり、制動装置8は樹脂等の可燃要素を一部に含んでいる。 As shown in FIGS. 5A, 5B, and 6, the hanging sliding door according to this embodiment has a braking mechanism. The braking mechanism is composed of a braking device 8 provided in the hanger unit 66 and a resin rack 9 provided at a predetermined portion (door front side portion, door bottom side portion) of the rail 7. A gear (not shown) of the braking device 8 meshes with the rack 9 when it moves to the position, thereby braking. The resin rollers 67 and the resin rack 9 of the hanging wheel unit 66 are combustible elements, and the braking device 8 partially contains combustible elements such as resin.

図5(B)に示す態様では、上枠3の内部において、扉体6の全開姿勢が保持可能な煙感知連動装置13が設けてあり、扉体6の全開姿勢が保持された状態で火災時の煙を感知すると、煙感知連動装置13が作動して扉体6の保持状態を解除して、扉体6が自重で閉鎖するようになっている。煙感知連動装置13は、全開姿勢にある扉体6の戸先側部位の上方に位置しており、この位置は、全閉姿勢にある扉体6の戸尻側部位の上方の位置と略同じである。煙感知連動装置13は樹脂等の可燃要素を一部に含んでいる。 In the embodiment shown in FIG. 5(B), a smoke detection interlocking device 13 capable of holding the fully open posture of the door 6 is provided inside the upper frame 3, and a fire is detected while the door 6 is held in the fully open posture. When smoke is sensed, the interlocking device 13 for detecting smoke is activated to release the holding state of the door 6 so that the door 6 is closed by its own weight. The smoke detection interlocking device 13 is positioned above the tip side portion of the door body 6 in the fully open posture, and this position is approximately above the bottom side portion of the door body 6 in the fully closed posture. are the same. The smoke detection interlocking device 13 partially contains a combustible element such as resin.

図6に示す態様では、上枠3の内部において、扉体6を任意の開放位置で保持可能な煙感知連動装置13が設けてあり、開放姿勢が保持された状態で火災時の煙を感知すると、煙感知連動装置13が作動して扉体6の保持状態を解除して、扉体6が自重で閉鎖するようになっている。煙感知連動装置13は、装置本体13´と、扉体6の上端部位において、戸先側の吊車ユニット66と戸尻側の吊車ユニット66の間に亘って設けた長尺部材130と、戸先側の吊車ユニット66と戸尻側の吊車ユニット66の間に位置して設けた戸車131と、を備えている。煙感知連動装置13の本体13´は、全閉姿勢にある扉体6の戸尻側部位の上方に位置しており、本体13´は樹脂等の可燃要素を一部に含んでいる。 In the embodiment shown in FIG. 6, a smoke detection interlocking device 13 capable of holding the door 6 in an arbitrary open position is provided inside the upper frame 3, and detects smoke during a fire while the door 6 is held in the open position. Then, the smoke detection interlocking device 13 is activated to release the holding state of the door 6, and the door 6 is closed by its own weight. The smoke detection interlocking device 13 includes a device main body 13', a long member 130 provided at the upper end portion of the door body 6 between a hanging wheel unit 66 on the front side of the door and a hanging wheel unit 66 on the bottom side of the door, A door roller 131 is provided between the hanger unit 66 on the front side and the hanger unit 66 on the door bottom side. A main body 13' of the smoke detection interlocking device 13 is positioned above the door tail side portion of the door body 6 in the fully closed posture, and the main body 13' partially contains a combustible element such as resin.

本実施形態に係る引戸は防火設備として用いられ得るものであり、開口部全閉時には、扉体6の戸先側及び戸尻側に屋内外を貫通する隙間が形成されないようになっている。全閉姿勢の扉体6の戸先側端面62を含む戸先側部位は、戸先側縦枠1の見込面12の凹部120内に位置しており、扉体6の戸尻側端面63に設けた相じゃくり片630の見付片6301が、中間縦枠5の隙間530に入り込んだ状態となって戸先側と戸尻側であいじゃくり構造が形成されている(図3参照)。 The sliding door according to this embodiment can be used as a fire prevention facility, and when the opening is fully closed, no gap penetrating indoors and outdoors is formed on the door tip side and the door trailing side of the door body 6 . The door tip side portion including the door tip side end face 62 of the door body 6 in the fully closed position is located in the concave portion 120 of the projection surface 12 of the door tip side vertical frame 1, and the door tail side end face 63 of the door body 6. The counter piece 6301 of the interlocking piece 630 provided in the frame is inserted into the gap 530 of the intermediate vertical frame 5 to form a interlocking structure between the door tip side and the door bottom side (see FIG. 3). .

上枠3の内部空間には、複数の可燃要素が存在する。可燃要素としては、樹脂製ローラ67、樹脂製ラック9、制動装置8に含まれる樹脂製要素、煙感知連動装置13に含まれる樹脂製要素、扉体6の移動機構の可動部分に存在する油(例えば、樹脂製ローラのグリスや制動装置8内の油)を例示することができる。制動装置8に含まれる樹脂製要素には、制動装置9のケース外部に設けられた樹脂製ギア(図示せず)が例示される。煙感知連動装置13に含まれる樹脂製要素は、煙検知連動装置13のケース内に位置している。図5、図6に示すように、全閉姿勢にある扉体6の戸先側吊車ユニット66の近傍に位置して、樹脂製ローラ67、制動装置8、樹脂製ラック9の戸先側部位が位置しており、全閉姿勢にある扉体の戸尻側吊車ユニット66の近傍に位置して、樹脂製ローラ67、制動装置8、煙感知連動装置13(図5(B))、煙感知連動装置13の本体13´(図6)が位置している。 A plurality of combustible elements are present in the internal space of the upper frame 3 . Combustible elements include the resin roller 67, the resin rack 9, the resin element included in the braking device 8, the resin element included in the smoke sensing interlocking device 13, and the oil present in the movable portion of the moving mechanism of the door 6. (For example, grease of resin rollers and oil in the braking device 8) can be exemplified. A resin gear (not shown) provided outside the case of the braking device 9 is exemplified as a resin element included in the braking device 8 . The resin element contained in the smoke detection interlock 13 is located within the smoke detection interlock 13 case. As shown in FIGS. 5 and 6, the door end side portion of the resin roller 67, the braking device 8, and the resin rack 9 is positioned near the door end side hanging wheel unit 66 of the door body 6 in the fully closed posture. is located in the vicinity of the trailing wheel side suspension wheel unit 66 of the door body in the fully closed posture, and includes the resin roller 67, the braking device 8, the smoke sensing interlocking device 13 (FIG. 5(B)), the smoke sensor A body 13' (Fig. 6) of the sensing interlock device 13 is located.

上枠3の下端部位に扉体6の上端部位が受け入れられており、扉体6の上端部64に設けた相じゃくり片640の水平片6400及び垂下片6401、点検カバー4の下端部位に固定された下端片45の上片452から、上枠3の内部で発生した煙が、扉体6の室内側見付面60の上端部位と上枠3の下端部位との隙間から排出されるまでの煙迂回路が形成され、扉体6の室内側見付面60の上端部位と上枠3の下端部位との隙間は、点検カバー4の下端部位に設けた熱膨張耐火部材46が加熱発泡することで閉塞されるようになっている。扉体6の室外側見付面61の上端部位と上枠3の下端部位との隙間は、室外側枠体32に設けた熱膨張耐火部材323が加熱発泡することで閉塞されるようになっている。 The upper end portion of the door body 6 is received in the lower end portion of the upper frame 3, and the horizontal piece 6400 and the hanging piece 6401 of the interlocking piece 640 provided on the upper end portion 64 of the door body 6 are attached to the lower end portion of the inspection cover 4. The smoke generated inside the upper frame 3 is discharged from the upper piece 452 of the fixed lower end piece 45 through the gap between the upper end portion of the indoor side viewing surface 60 of the door 6 and the lower end portion of the upper frame 3. The gap between the upper end portion of the indoor side viewing surface 60 of the door 6 and the lower end portion of the upper frame 3 is heated by the thermal expansion fireproof member 46 provided at the lower end portion of the inspection cover 4. It is closed by foaming. The gap between the upper end portion of the outdoor side viewing surface 61 of the door member 6 and the lower end portion of the upper frame 3 is closed by heating and foaming of the thermal expansion fireproof member 323 provided on the outdoor side frame member 32 . ing.

上枠3の上端部位(上枠本体3´の被装着部に対する点検カバー4の上端部位の取付部位)において、防火上不利な隙間が生成されることが防止されている。点検カバー4が上枠本体3´に取り付けられた状態において、図2、図4に示すように、被装着部の立ち上がり支承片353が、点検カバー4の面部40の上端部位に内側から当接ないし近接し、立ち上がり支承片353の上端が点検カバー4の水平片41に下方から当接しており、被装着部の被当接部351´には、点検カバー4の上端部位の立ち上がり係止片42A、42B、42Cが内側から当接ないし近接している。 In the upper end portion of the upper frame 3 (the attachment portion of the upper end portion of the inspection cover 4 to the mounting portion of the upper frame main body 3'), generation of a gap disadvantageous in terms of fire prevention is prevented. When the inspection cover 4 is attached to the upper frame main body 3', as shown in FIGS. 2 and 4, the rising support piece 353 of the attached portion abuts the upper end portion of the surface portion 40 of the inspection cover 4 from the inside. The upper end of the rising support piece 353 is in contact with the horizontal piece 41 of the inspection cover 4 from below. 42A, 42B, and 42C abut or approach each other from the inside.

点検カバー4は、面部40の上端部位が立ち上がり支承片353の側面に当接ないし近接した状態で水平片41が立ち上がり支承片353の上端に支承されており、支承部分37A、37Bにおいては、点検カバー4の面部40の上端部位と立ち上がり支承片353の側面が当接ないし近接し、立ち上がり支承片353の上端から凹部36内に水平片41が延びることで、点検カバー4の上端部位と上枠本体3´の被装着部の間が密閉されて隙間が生じないようになっている。 In the inspection cover 4, the horizontal piece 41 rises and is supported by the upper end of the support piece 353 in a state where the upper end portion of the surface portion 40 rises and abuts or is close to the side surface of the support piece 353. The upper end portion of the surface portion 40 of the cover 4 and the side surface of the rising support piece 353 abut or approach each other, and the horizontal piece 41 extends from the upper end of the rising support piece 353 into the concave portion 36 , so that the upper end portion of the inspection cover 4 and the upper frame are aligned. A space between the mounted parts of the main body 3' is sealed so that no gap is generated.

この状態において、火災時の熱が上枠3に作用すると、点検カバー4が、当該点検カバー4の上端の支承部(面部40の上端部位、水平片41)が、上枠本体3´の立ち上がり支承片353から離れるように変形して、点検カバー4の上端部位と上枠本体3´の被装着部との間に隙間が生じるおそれがある(図10参照)。本実施形態では、3つの立ち上がり係止片42A、42B、42Cが内側から被当接部351´に当接して引っ掛け部分38A、38B、38Cを形成することで、支承部分37A、37Bにおいて、点検カバーの上端部位と上枠本体3´の被装着部との間に防火上不利な隙間が形成されることを防止する。以下に、より具体的に説明する。 In this state, when the heat of the fire acts on the upper frame 3, the inspection cover 4 is moved, and the support portion of the upper end of the inspection cover 4 (the upper end portion of the surface portion 40, the horizontal piece 41) rises of the upper frame main body 3'. It may be deformed away from the support piece 353, creating a gap between the upper end portion of the inspection cover 4 and the mounting portion of the upper frame main body 3' (see FIG. 10). In this embodiment, the three rising locking pieces 42A, 42B, 42C abut on the abutted portion 351' from the inside to form the hooking portions 38A, 38B, 38C, so that the support portions 37A, 37B can be inspected. To prevent a gap disadvantageous in terms of fire prevention from being formed between the upper end portion of the cover and the mounted portion of the upper frame main body 3'. More specific description will be given below.

支承部分37Aの長さ方向(開口幅方向)両側に引っ掛け部分38A、引っ掛け部分38Cが位置しており、点検カバー4の上端部位の立ち上がり係止片42A、42Cが被装着部の被当接部351´の内面に当接ないし近接することで、点検カバー4の上端部位(被支承部)が上枠本体3´から室内側に離間しようとする動きに対抗するようになっている。扉体6が全閉姿勢にある時に、上枠3の内部空間には、支承部分37Aに対応して、樹脂製ローラ67を備えた戸先側の吊車ユニット66、制動装置8、樹脂製ラック9が位置しており、引っ掛け部分38A(立ち上がり係止片42Aと被当接部351´)、引っ掛け部分38C(立ち上がり係止片42Cと被当接部351´)によって、支承部分37Aにおける被支承片(立ち上がり支承片353)と支承部(面部40の上端部位、水平片41)の当接状態を維持して、支承部分37Aに隙間が生じることを可及的に防止している。 A hooking portion 38A and a hooking portion 38C are positioned on both sides in the length direction (opening width direction) of the support portion 37A. By abutting or approaching the inner surface of 351', the upper end portion (supported portion) of the inspection cover 4 is opposed to the movement to separate from the upper frame main body 3' toward the indoor side. When the door body 6 is in the fully closed position, the interior space of the upper frame 3 contains a door-end-side hanger unit 66 equipped with a resin roller 67, a braking device 8, a resin rack, corresponding to the support portion 37A. 9 is positioned, and the hooking portion 38A (rising locking piece 42A and abutted portion 351') and the hooking portion 38C (rising locking piece 42C and abutted portion 351') support the supported portion 37A. The abutting state of the piece (rising support piece 353) and the support portion (the upper end portion of the surface portion 40, the horizontal piece 41) is maintained to prevent the formation of a gap in the support portion 37A as much as possible.

支承部分37Bの長さ方向(開口幅方向)両側に引っ掛け部分38C、引っ掛け部分38Bが位置しており、点検カバー4の上端部位の立ち上がり係止片42C、42Bが被装着部の被当接部351´の内面に当接ないし近接することで、点検カバー4の上端部位(被支承部)が上枠本体3´から室内側に離間しようとする動きに対抗するようになっている。扉体6が全閉姿勢にある時に、上枠3の内部空間には、支承部分37Bの戸先側部位に対応して、樹脂製ローラ67を備えた戸尻側の吊車ユニット66、制動装置8、煙感知連動装置13(図5(B)、図6)が位置しており、引っ掛け部分38C(立ち上がり係止片42Cと被当接部351´)、引っ掛け部分38B(立ち上がり係止片42Bと被当接部351´)によって、支承部分37Bにおける被支承片(立ち上がり支承片353)と支承部(面部40の上端部位、水平片41)の当接状態を維持して、支承部分37B(特に、引っ掛け部分38Cに近い戸先側部位)に隙間が生じることを可及的に防止している。 A hooking portion 38C and a hooking portion 38B are positioned on both sides in the length direction (opening width direction) of the support portion 37B. By abutting or approaching the inner surface of 351', the upper end portion (supported portion) of the inspection cover 4 is opposed to the movement to separate from the upper frame main body 3' toward the indoor side. When the door body 6 is in the fully closed position, in the inner space of the upper frame 3, in correspondence with the door tip side portion of the support portion 37B, there is a door trailing side hanger unit 66 provided with a resin roller 67, and a braking device. 8. The smoke sensing interlocking device 13 (Fig. 5(B), Fig. 6) is located, and the hooking portion 38C (rising locking piece 42C and the abutted portion 351'), the hooking portion 38B (rising locking piece 42B and abutted portion 351 ′) maintains the abutting state between the supported piece (rising bearing piece 353 ) and the bearing portion (upper end portion of surface portion 40 , horizontal piece 41 ) in the bearing portion 37B, so that the bearing portion 37B ( In particular, the gap is prevented as much as possible in the door end portion near the hook portion 38C.

引っ掛け部分38A、38B、38Cにおいては、点検カバー4の上端部位の立ち上がり係止片42A、42B、42Cが被装着部の被当接部351´の内面に当接ないし近接した状態で、立ち上がり係止片42A、42B、42Cの下端から室内側に延びる水平片41の幅広部41A´、41B´、41C´が、被装着部の被当接部351´の下端に位置することから、点検カバー4の上端部位と被装着部の間が密閉され隙間が生じないようになっている。 In the hooking portions 38A, 38B, and 38C, the rising engaging pieces 42A, 42B, and 42C of the upper end portion of the inspection cover 4 are in contact with or close to the inner surface of the contacted portion 351' of the mounted portion. Since the wide portions 41A', 41B', 41C' of the horizontal piece 41 extending from the lower ends of the stop pieces 42A, 42B, 42C toward the interior of the room are located at the lower end of the contacted portion 351' of the attached portion, the inspection cover The space between the upper end portion of 4 and the mounting portion is sealed so as not to create a gap.

本実施形態では、点検カバー4の上端部位の立ち上がり係止片42Cと上枠本体3´の挿入部35C及び挿入部35Cに対応する被当接部351´が戸先から一定の位置にあることで、特に戸先側に位置する可燃要素(樹脂製ラック9)が着火したような場合に対して効果がある。より具体的には、開口部側に位置する樹脂製ラック9は、扉体6の移動方向に延びる長尺材であり、比較的容積が大きく、火災時(特に、室外側が火元)の炎や熱によって着火し易い。また、戸先側の樹脂製ラック9は、扉体6が全閉位置に近づいた時に扉体6を制動(減速)させるものであることから、扉体6の幅寸法(開口幅寸法)が変わっても、戸先側の樹脂製ラック9の位置は略一定である。また、本実施形態は、主として室外側に火元がある場合を想定しており、収納部側に位置する樹脂製ラック9の室外側には壁体Wが位置しているため、戸尻側の樹脂製ラック9の着火の可能性は低い。上枠3内には、開口部全閉状態における扉体6の戸尻側の上方には、可燃要素を含む煙感知連動装置13、煙感知連動装置13の本体13´が位置しているが、これらの可燃要素はケース内にあることから、火災時には、戸先側の樹脂製ラック9がより燃え易くなっている。本実施形態では、戸先側吊車ユニット66と戸尻側吊車ユニット66の間に位置し、戸先から一定の位置にあり、かつ、戸先側の樹脂製ラック9の近傍に位置する引っ掛け部分38C(立ち上がり係止片42Cと挿入部35Cに対応する被当接部351´)によって点検カバー4の熱変形を抑制し、戸先側の樹脂製ラック9が着火した場合であっても、炎が外部に出ることを防止する。なお、煙感知連動装置13の戸車131(図6)は樹脂製ローラであり、可燃要素であるが、戸車131は引っ掛け部分38Cの近傍に位置することから、戸車131の近傍に位置する点検カバー4の部分は、より変形し難くなっている。 In this embodiment, the rising locking piece 42C of the upper end portion of the inspection cover 4, the insertion portion 35C of the upper frame main body 3', and the abutted portion 351' corresponding to the insertion portion 35C are located at a fixed position from the door. In particular, it is effective against the case where the combustible element (resin rack 9) located on the side of the door is ignited. More specifically, the resin rack 9 positioned on the opening side is a long member extending in the direction of movement of the door 6, has a relatively large volume, and can be used in the event of a fire (particularly, the fire originating on the outdoor side). It is easily ignited by fire or heat. In addition, since the resin rack 9 on the door end side brakes (decelerates) the door 6 when the door 6 approaches the fully closed position, the width dimension (opening width dimension) of the door 6 is Even if it changes, the position of the resin rack 9 on the side of the door is substantially constant. Further, in this embodiment, it is assumed that the fire origin is mainly on the outdoor side, and since the wall body W is positioned on the outdoor side of the resin rack 9 positioned on the storage part side, The possibility of ignition of the resin rack 9 is low. In the upper frame 3, a smoke sensing interlocking device 13 including a combustible element and a main body 13' of the smoke sensing interlocking device 13 are positioned above the door bottom side of the door 6 in the fully closed state of the opening. Since these combustible elements are inside the case, the resin rack 9 on the side of the door is more likely to burn in the event of a fire. In the present embodiment, the hooking portion is located between the door end side hanger unit 66 and the door end side hanger unit 66, is at a fixed position from the door end, and is located near the door end side resin rack 9. Thermal deformation of the inspection cover 4 is suppressed by 38C (abutted portion 351' corresponding to the rising locking piece 42C and the insertion portion 35C), and even if the resin rack 9 on the side of the door is ignited, the flame can be prevented. prevent it from going outside. The door roller 131 (FIG. 6) of the smoke detection interlocking device 13 is a resin roller and is a combustible element. Part 4 is more difficult to deform.

なお、図5(B)、図6に示す態様は、上枠3内に煙感知連動装置13、煙感知連動装置13の本体13´を設けたことによって、図5(A)に示す態様に比べて、上枠3の内部空間の高さ寸法が大きくなっており、上枠3の内部の可燃要素が着火した場合において、図5(A)に示す態様に比べて、点検カバー4の上端部位と上枠本体3´との間から火炎が外部に出難い構造となっている。 5(B) and FIG. 6 are changed to the mode shown in FIG. In comparison, the height dimension of the internal space of the upper frame 3 is large, and when the combustible element inside the upper frame 3 is ignited, the upper end of the inspection cover 4 is compared to the mode shown in FIG. The structure is such that the flame is difficult to escape from between the portion and the upper frame main body 3'.

本実施形態に係る上吊り引戸は手動式であるが、本発明は、電動式の引戸、自動ドア等に適用することも可能である。また、本実施形態では、1枚の扉体6を備えた片引き引戸を示したが、本発明は、例えば、2枚の扉体を備えた引き分け引戸に適用することも可能である。この実施形態では、開口部全閉姿勢にある各扉体の上方に位置して、それぞれ、点検カバーが設けてあり、一方の点検カバーの戸尻側部位は一方の縦枠の上端部位に位置しており、他方の点検カバーの戸尻側部位は他方の縦枠の上端部位に位置しており、前記一方及び前記他方の点検カバーの戸先側部位は隣接している。 Although the overhead sliding door according to the present embodiment is a manual type, the present invention can also be applied to electric sliding doors, automatic doors, and the like. Further, in this embodiment, the single sliding door provided with one door member 6 is shown, but the present invention can also be applied to a separate sliding door provided with two door members, for example. In this embodiment, an inspection cover is provided above each door body in the fully closed position of the opening, and the door trailing edge side portion of one inspection cover is located at the upper end portion of one vertical frame. The door trailing side portion of the other inspection cover is positioned at the upper end portion of the other vertical frame, and the door leading side portions of the one inspection cover and the other inspection cover are adjacent to each other.

3 上枠
3´ 上枠本体
31 上面部
353 立ち上がり支承片(支承片)
351´ 被当接部
35A 挿入部(戸先側挿入部)
35B 挿入部(戸尻側挿入部)
35C 挿入部
4 点検カバー
40 面部(第1側見付面を形成する面部)
41 水平片
41´、41A´、41B´、41C´ 幅広部
42 立ち上がり係止片(係止片)
42A 第1立ち上がり係止片(第1係止片)
42B 第2立ち上がり係止片(第2係止片)
42C 第3立ち上がり係止片(第3係止片)
6 扉体
66 吊車ユニット(吊車)
67 樹脂製ローラ
7 レール
8 制動装置
9 樹脂製ラック
3 Upper frame 3' Upper frame main body 31 Upper surface portion 353 Standing support piece (support piece)
351' contacted portion 35A insertion portion (door end side insertion portion)
35B Insertion section (insertion section on door bottom side)
35C insertion portion 4 inspection cover 40 surface portion (surface portion forming the first side viewing surface)
41 Horizontal piece 41', 41A', 41B', 41C' Wide portion 42 Standing locking piece (locking piece)
42A first rising locking piece (first locking piece)
42B Second rising locking piece (second locking piece)
42C Third rising locking piece (third locking piece)
6 door body 66 hanging wheel unit (hanging wheel)
67 resin roller 7 rail 8 braking device 9 resin rack

Claims (8)

上吊り引戸の上枠は、上枠本体と、前記上枠本体に着脱可能に取り付けられた点検カバーと、からなり、
前記点検カバーは、上枠の第1側見付面を形成する面部と、前記面部の上端に長さ方向に亘って形成された被支承部と、前記被支承部の長さ方向の複数箇所において立ち上がり形成された複数の係止片と、を備え、
前記上枠本体の上面の第1側部位は、前記点検カバーの前記被支承部に当接して支承する支承片と、前記点検カバーの前記係止片が内側から当接することで、前記被支承片と前記支承部の当接状態を維持する被当接部と、を備えた被装着部を備え、
上枠内には、全閉姿勢にある扉体の戸先側吊車の近傍に位置して1つ以上の可燃要素が設けてあり、全閉姿勢にある扉体の戸尻側吊車の近傍に位置して1つ以上の可燃要素が設けてあり、
前記複数の係止片は、全閉姿勢にある扉体の戸先側吊車の戸先側に位置する第1係止片と、全閉姿勢にある扉体の戸尻側吊車の戸尻側に位置する第2係止片と、全閉姿勢にある扉体の戸先側吊車と戸尻側吊車の間に位置する第3係止片と、を含み、前記可燃要素の近傍における前記支承片と前記被支承部の当接状態を維持する、
引戸の上枠の防火構造。
The upper frame of the hanging sliding door comprises an upper frame main body and an inspection cover detachably attached to the upper frame main body,
The inspection cover includes a surface portion forming a first side viewing surface of the upper frame, a supported portion formed on the upper end of the surface portion along the length direction, and a plurality of positions along the length direction of the supported portion. and a plurality of locking pieces formed to rise in
The first side portion of the upper surface of the upper frame main body is supported by the support piece that abuts and supports the supported portion of the inspection cover and the locking piece of the inspection cover that abuts from the inside so that the supported portion is supported. A mounted portion including a piece and a contacted portion that maintains the contact state of the support portion,
One or more combustible elements are provided in the upper frame in the vicinity of the end-side suspension wheel of the door body in the fully closed position, and in the vicinity of the end-side suspension wheel of the door body in the fully closed position. one or more combustible elements located at
The plurality of locking pieces include a first locking piece located on the door end side of the door end side hanger of the door body in the fully closed posture, and a door end side end of the door end side hanger of the door body in the fully closed posture. and a third locking piece positioned between the end-side suspension wheel and the trailing-side suspension wheel of the door body in the fully closed position, and the support in the vicinity of the combustible element maintaining a state of contact between the piece and the supported portion;
Fire protection structure for upper frame of sliding door.
前記被支承部は、前記面部の上端部位と、前記面部の上端に形成された水平片と、からなり、前記水平片の前記係止片に対応する部位は幅広部となっており、前記係止片は、前記幅広部に立ち上がり形成されており、
前記支承片は、前記面部の前記上端部位に内側から当接ないし近接し、上端が前記点検カバーの前記水平片に下方から当接して支承する、
請求項1に記載の引戸の上枠の防火構造。
The portion to be supported includes an upper end portion of the surface portion and a horizontal piece formed at the upper end of the surface portion. The stop piece is formed upright on the wide portion,
The support piece abuts or approaches the upper end portion of the surface portion from the inside, and the upper end abuts and supports the horizontal piece of the inspection cover from below.
The fireproof structure of the upper frame of the sliding door according to claim 1.
前記上枠本体の前記被装着部において、各被当接部の直下に挿入部が形成されており、
前記点検カバーは、前記係止片を略水平姿勢とした状態で、前記挿入部に正面から挿入し、下方に回動して前記係止片を前記被当接部に内側から当接ないし近接させた状態で取り付けられている、
請求項1、2いずれか1項に記載の引戸の上枠の防火構造。
An insertion portion is formed directly below each contact portion of the attachment portion of the upper frame main body,
The inspection cover is inserted into the insertion portion from the front with the locking piece in a substantially horizontal position, and is rotated downward to bring the locking piece into contact with or close to the contacted portion from the inside. installed with the
The fireproof structure of the upper frame of the sliding door according to any one of claims 1 and 2.
前記第1係止片は、前記点検カバーの戸先側端部に形成されており、
前記第2係止片は、前記点検カバーの戸尻側端部に形成されている、
請求項1~3いずれか1項に記載の引戸の上枠の防火構造。
The first locking piece is formed at the door tip side end of the inspection cover,
The second locking piece is formed at the door bottom side end of the inspection cover,
The fireproof structure of the upper frame of the sliding door according to any one of claims 1 to 3.
前記上枠本体の前記被装着部の戸先側端部には、戸先側挿入部が形成されており、前記戸先側挿入部の直上には、前記戸先側係止片が当接する戸先側被当接部が形成されており、
前記上枠本体の前記被装着部の戸尻側端部には、戸尻側挿入部が形成されており、前記戸尻側挿入部の直上には、前記戸尻側係止片が当接する戸尻側被当接部が形成されている、
請求項4(請求項3を従属するものに限る)に記載の引戸の上枠の防火構造。
A door leading edge side insertion portion is formed at a door leading edge side end portion of the mounting portion of the upper frame main body, and the door leading edge side locking piece abuts directly above the door leading edge side inserting portion. A door tip side abutted portion is formed,
A trailing edge side insertion portion is formed at the door trailing edge side end portion of the mounted portion of the upper frame main body, and the door trailing side locking piece abuts directly above the door trailing side insertion portion. A door tail side abutted portion is formed,
The fire prevention structure of the upper frame of the sliding door according to claim 4 (claim 3 is limited to dependent ones).
前記扉体の上方には、前記第3係止片の戸先側に位置して、前記戸先側吊車及び制動装置が設けてあり、
前記戸先側吊車及び前記制動装置は可燃要素を含んでいる、
請求項1~5いずれか1項に記載の引戸の上枠の防火構造。
Above the door body, the door tip side hanger and the braking device are provided on the door tip side of the third locking piece,
The door end hanger and the braking device include combustible elements,
The fireproof structure of the upper frame of the sliding door according to any one of claims 1 to 5.
前記扉体の上方には、前記第3係止片の戸尻側に位置して、前記戸尻側吊車及び制動装置が設けてあり、
前記戸尻側吊車及び前記制動装置は可燃要素を含んでいる、
請求項1~6いずれか1項に記載の引戸の上枠の防火構造。
Above the door body, the door trailing end suspension wheel and braking device are provided on the door trailing end side of the third locking piece,
The trailing wheel and the braking device contain combustible elements,
The fireproof structure of the upper frame of the sliding door according to any one of claims 1 to 6.
前記上枠内には、前記第3係止片の近傍から戸先側に位置して、可燃要素である樹脂製ラックが設けてある、
請求項1~7いずれか1項に記載の引戸の上枠の防火構造。
A resin rack, which is a combustible element, is provided in the upper frame, positioned on the door tip side from the vicinity of the third locking piece,
The fireproof structure of the upper frame of the sliding door according to any one of claims 1 to 7.
JP2021023875A 2021-02-18 2021-02-18 Fireproof structure of upper frame of sliding door Pending JP2022126037A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021023875A JP2022126037A (en) 2021-02-18 2021-02-18 Fireproof structure of upper frame of sliding door

Publications (1)

Publication Number Publication Date
JP2022126037A true JP2022126037A (en) 2022-08-30

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ID=83058744

Family Applications (1)

Application Number Title Priority Date Filing Date
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