JP5751943B2 - Smokeproof wall mounting device - Google Patents
Smokeproof wall mounting device Download PDFInfo
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- JP5751943B2 JP5751943B2 JP2011132089A JP2011132089A JP5751943B2 JP 5751943 B2 JP5751943 B2 JP 5751943B2 JP 2011132089 A JP2011132089 A JP 2011132089A JP 2011132089 A JP2011132089 A JP 2011132089A JP 5751943 B2 JP5751943 B2 JP 5751943B2
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- 239000000779 smoke Substances 0.000 claims description 24
- 230000004888 barrier function Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 17
- 230000007246 mechanism Effects 0.000 description 10
- 210000002105 tongue Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 239000004641 Diallyl-phthalate Substances 0.000 description 2
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000005181 root of the tongue Anatomy 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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- Building Environments (AREA)
Description
本発明は，防煙垂壁の取り付け装置に関し，詳しくはシートタイプの防煙垂壁の取り付け装置に関する。 The present invention relates to a device for attaching a smoke-proof hanging wall, and more particularly, to a device for attaching a sheet-type smoke-proof hanging wall.
ビル等の一定以上の床面積を有する建築物には、建築基準法により，防煙区画を構成する防煙垂壁の設置が義務づけられている。防煙垂壁は，火災時に発生する煙から人が避難するための時間的猶予を与えるためのものである。従来一般的な防煙垂壁は、多数のガラス板を天井から所定の高さまで下ろしたものを連ねることによって構成されている。それらは多くの場合，天井裏の梁等の支持構造物に取り付けられた上側フレーム部材の下側にある細長い開口にガラス板の上縁を挿入し、ガラス板の下縁両端の角部を，上側フレーム部材から下げられた吊り金具の受け部に載せる等の方法で，取り付けられていた。このようなタイプの防煙垂壁は，力学的にあまり安定でないものが多く，一部のガラス板の角部が受け部から外れて落下すると，隣接のガラス板がその反動で同じ状態となって次々と連鎖的に落下し，防煙垂壁全体の崩落に至るという事態を引き起こし易い。その上，ガラス板はこれを支える構造体が歪んだ場合，応力を受けて割れ易い。このため，従来の防煙垂壁の大半は地震に弱く，ある程度の強さの地震が起こった場合，ガラス板の割れや破片の落下，あるいは崩落を起こし，頭上から落下してくるガラス板や床面等に衝突して飛散するガラス片による怪我等の重大な身体的危険や避難上の障害となり，また地震後の収束後は，大量に散乱したガラス片が，速やかな復旧作業を妨げるという問題があった。 Buildings with a certain floor area or more, such as buildings, are obliged to install smoke barriers that constitute smoke-proof sections according to the Building Standard Law. Smoke barriers provide time for people to evacuate from smoke generated during a fire. Conventionally, a general smoke-proof wall is configured by connecting a number of glass plates lowered from a ceiling to a predetermined height. In many cases, the upper edge of the glass plate is inserted into an elongated opening on the lower side of the upper frame member attached to a support structure such as a beam behind the ceiling, and the corners at both ends of the lower edge of the glass plate are inserted. It was attached by a method such as placing it on a receiving part of a hanging bracket lowered from the upper frame member. Many of these types of smoke barriers are not very stable mechanically, and if the corners of some glass plates fall off the receiving part and fall, the adjacent glass plates will be in the same state due to the reaction. It is easy to cause the situation where the whole smoke-proof hanging wall collapses. In addition, the glass plate is susceptible to cracking when the structure that supports it is distorted. For this reason, most of the conventional smoke barriers are vulnerable to earthquakes, and when an earthquake of a certain level of intensity occurs, the glass plates break or fall or collapse, causing the glass plates falling from overhead The glass pieces that collide with the floor surface, etc., scatter and cause serious physical hazards such as injuries and obstacles to evacuation. After convergence after an earthquake, a large amount of scattered glass pieces impedes rapid restoration work. There was a problem.
このため，ガラス板に較べてはるかに軽く柔軟なシートを用いた防煙垂壁も一部において用いられている。防煙垂壁に用いられるシートとしては，基材としてのガラスクロスに，合成樹脂（例えば，ジアリルフタレート樹脂や不飽和ポリエステル樹脂）を含浸させ，あるいは更に樹脂にケイ酸その他の無機充填剤を含ませた，不燃性シートが知られている。ガラスクロスを基材とした樹脂含浸シートは，極めて薄く且つロール状に巻いておける程柔軟ではあるが，ヤング率は非常に大きく，引張に対して伸びにくいという性質を有する。それらのシートを用いた防煙垂壁として，天井から吊り下げられた１枚のシートの両端をそれぞれ端部保持具により保持し且つ引張して張力を付与するタイプのものが知られており，そこでは，シートに張力を付与するために，シートの端部を保持する部材を，壁面に固定された保持具本体の調節ボルトを回すことによって壁側に引き寄せる，という機構が採用されている（特許文献１及び２参照）。 For this reason, smoke barriers using sheets that are much lighter and more flexible than glass plates are also used in some areas. As a sheet used for the smoke barrier, a glass cloth as a base material is impregnated with a synthetic resin (for example, diallyl phthalate resin or unsaturated polyester resin), or the resin further contains silicic acid or other inorganic filler. Incombustible sheets are known. A resin-impregnated sheet based on glass cloth is extremely thin and flexible enough to be wound into a roll, but has a property that the Young's modulus is very large and hardly stretched against tension. As a smoke-proof hanging wall using these sheets, there is known a type in which both ends of one sheet suspended from the ceiling are respectively held by an end holder and tension is applied by tension. In order to apply tension to the sheet, a mechanism is adopted in which the member that holds the end of the sheet is pulled toward the wall by turning the adjusting bolt of the holder body fixed to the wall surface ( (See Patent Documents 1 and 2).
しかしながら，シートの両端をそれぞれ端部保持具により保持し且つ張力を付与するタイプにおいて，上記の機構によりシートに十分な張力を付与することが可能である一方，ある程度以上の強さの地震が起こった場合，揺れに伴う構造物の歪みにより，これに固定されて追随する端部保持具に結合されたシートも，同じく歪みの影響を受ける。上述のように，シートは極めて伸びにくいため，歪み（特に伸び）がわずかであっても非常に大きな応力がシートに生じ，シートの破損や，それに引かれる端部保持具の破損，変形等が起こり得る，という潜在的問題がある。 However, in the type in which both ends of the sheet are held by the end holders and tension is applied, it is possible to apply sufficient tension to the sheet by the above mechanism, but an earthquake of a certain level or more occurs. In this case, due to the distortion of the structure due to the shaking, the sheet fixed to the end holder that follows and is also affected by the distortion. As described above, since the sheet is extremely difficult to stretch, even if the strain (particularly elongation) is slight, a very large stress is generated on the sheet, and the sheet is damaged, and the end holder pulled or damaged is deformed. There is a potential problem that can happen.
上記背景の下で，本発明は，上記のシートタイプの防煙垂壁において壁側でシートの端部を張力を維持しつつ保持するための改良された装置であって，取り付けが容易であり，また特に地震時におけるシートの破損や，シートを保持する装置の破損，変形等を防止できる装置の提供を目的とする。 Under the above-mentioned background, the present invention is an improved device for holding the end of the sheet on the wall side while maintaining the tension in the above-described sheet-type smoke barrier, and is easy to install. Also, it is an object of the present invention to provide a device that can prevent damage to the sheet, especially damage caused by an earthquake, and damage or deformation of the device that holds the sheet.
本発明者は，シートタイプの防煙垂壁の取り付けにおいて，シートの端部を保持しシートに張力を付与するための機構を，単なるねじ機構によるのではなく，ねじ機構とばねとを組み合わせた機構とし，ばねによりシートに張力を付与するようにすることで，上記の潜在的問題を解決できることを見出し，更に検討を加えて本発明を完成させた。すなわち，本発明は以下を提供するものである。
１．防煙垂壁の設置において，建築物の壁間を横断する方向に張られる防煙垂壁用シートの端部を壁に取り付けるための装置であって，
（ａ）壁に対して固定される固定枠体と，該固定枠体に挿入された可動枠体であってシートが張られる方向にスライド可能なものである可動枠体とを含んでなり，
（ｂ）該固定枠体が，その壁側の縁部からシート方向に，該可動枠体の壁側の縁部を貫通して該可動枠体の内部へと延びる少なくとも１本のシャフトであって少なくともその先端側の外周面に所定の範囲にわたって雄ねじが形成されているものであるシャフトと，該シャフトの，該可動枠体の壁側の縁部を貫通して延びている部分を中に通して取り付けられたスプリングであって，該可動枠体の壁側の縁部の該シャフトが貫通している部位の周囲と該シャフトの雄ねじに螺合されたナットとの間に挟まれて取り付けられたスプリングとを含んでおり，
（ｃ）該可動枠体が，その内部に該シャフト，スプリング及びナットを収容できる空間を備えると共に，壁とは反対側の縁部において，シートの端部を固定するシート端部保持部材を含むものである，装置。
２．該シート端部保持部材が，該可動枠体の他の部分である可動枠部材とは別体であり，該可動枠部材との機械的係合によりこれに取り付けられるものである，上記１の装置。
３．該可動枠部材と該シート端部保持部材との機械的係合が，該可動枠部材の両端部に設けられた受け部と，該シート端部保持部材の両端部に備えられた突出部との係合である，上記２の装置。
４．該受け部がスリットである，上記３の装置。
５．該突出部が該スリットと回転不能に係合するものであり，且つ該突出部が中で回転することを許容する大きさの開口が該スリットと連続してその壁側寄りに設けられているものである，上記４の装置。
６．該シート端部保持部材が，該突出部を両端に備えた中間プレートと，中間プレートを表裏から挟む外側プレートとを含んでなるものである，上記５の装置。
７．該シート端部保持部材にシートの端部が機械的結合手段により結合されるものである，上記１〜６の何れかの装置。
８．該可動枠体に保持されたシートを通すことのできる間隙を少なくとも残した状態で該固定枠体及び該可動枠体を覆うものであるカバー部材を更に含む，上記１の装置。
The present inventor combined not only a screw mechanism but also a screw mechanism and a spring in order to hold the end of the sheet and apply tension to the sheet when attaching the sheet type smoke barrier. The present inventors have found that the above-mentioned potential problems can be solved by applying a tension to the sheet by a spring and applying a further study to complete the present invention. That is, the present invention provides the following.
1. In the installation of smoke barriers, a device for attaching to the wall the end of a sheet for smoke barriers that is stretched across the walls of the building,
(A) a fixed frame that is fixed to the wall, and a movable frame that is inserted into the fixed frame and is slidable in the direction in which the sheet is stretched,
(B) The fixed frame is at least one shaft extending from the wall-side edge of the movable frame in the sheet direction through the wall-side edge of the movable frame to the inside of the movable frame. A shaft in which a male screw is formed over a predetermined range on at least the outer peripheral surface of the distal end side thereof, and a portion of the shaft extending through the edge of the wall side of the movable frame body A spring mounted through and attached by being sandwiched between the periphery of the wall-side edge of the movable frame and the nut threadedly engaged with the male screw of the shaft Springs, and
(C) The movable frame body includes a space in which the shaft, the spring, and the nut can be accommodated, and a sheet end holding member that fixes the end of the sheet at the edge opposite to the wall. A device that is
2. The sheet end holding member is separate from a movable frame member that is another part of the movable frame body, and is attached to the movable frame member by mechanical engagement with the movable frame member. apparatus.
3. Mechanical engagement between the movable frame member and the sheet end holding member includes receiving portions provided at both ends of the movable frame member, and protrusions provided at both ends of the sheet end holding member; The device according to 2 above, wherein
4). The apparatus according to 3 above, wherein the receiving part is a slit.
5. The protrusion is non-rotatably engaged with the slit, and an opening of a size that allows the protrusion to rotate in the opening is provided continuously to the wall and close to the wall. 4. The device according to 4 above.
6). 6. The apparatus according to 5 above, wherein the sheet end holding member includes an intermediate plate having the protruding portions at both ends, and an outer plate sandwiching the intermediate plate from the front and back.
7). 7. The apparatus according to any one of 1 to 6 above, wherein an end of the sheet is coupled to the sheet end holding member by a mechanical coupling means.
8). The apparatus according to 1 above, further comprising a cover member that covers the fixed frame and the movable frame with at least a gap through which the sheet held by the movable frame can pass.
本発明の装置によれば，天井から吊り下げられた１枚の不燃性シートの両端をそれぞれ端部保持具により保持し且つ張力を付与するタイプの防煙垂壁において，シートに張力を常時付与しつつ，地震による揺れに伴う構造物の歪みがあっても，シートに生じる応力がスプリングの弾性変形によって瞬時に緩和されることにより，シートに過大な張力が作用するのを効果的に防止できる。それにより，地震時におけるシートの破断を極めて効果的に防止することができる。特に，本発明の装置は，構造が単純で且つシートの取り付け操作も簡単であり，これら両面からシートタイプの防煙垂壁の設置コストを削減できる。更には，本発明の装置においては，シートを天井から吊り下げる機構に関しては制約がないため，従来の種々の防煙垂壁の天井側の機構を用いることができる。従って，既設の防煙垂壁において天井側の機構は交換せずにそのまま用い，壁側でシート端部を保持する保持具その他の装置のみを本発明の装置に置き換えれば済む。このため，本発明は，現在国内に大量にある既設の防煙垂壁を，極めて簡単且つ迅速，低コストで，地震に強い防煙垂壁に変更することを可能にする。 According to the apparatus of the present invention, in a smoke-proof hanging wall in which both ends of one incombustible sheet suspended from the ceiling are held by the end holders and tension is applied, tension is constantly applied to the sheet. However, even if there is distortion of the structure due to the shaking caused by the earthquake, the stress generated in the sheet is instantly relieved by the elastic deformation of the spring, so that it is possible to effectively prevent the excessive tension from acting on the sheet. . Thereby, it is possible to prevent the breakage of the sheet during an earthquake extremely effectively. In particular, the apparatus of the present invention has a simple structure and a simple sheet mounting operation, and the installation cost of the sheet-type smoke barrier can be reduced from both sides. Furthermore, in the apparatus of the present invention, since there is no restriction on the mechanism for suspending the seat from the ceiling, various conventional smoke-proof hanging wall-side mechanisms can be used. Accordingly, in the existing smoke proof wall, the ceiling side mechanism is used as it is without replacement, and only the holder and other devices for holding the sheet end on the wall side are replaced with the device of the present invention. For this reason, the present invention makes it possible to change existing smoke barriers in large quantities in Japan to smoke barriers that are extremely simple, quick, and low in cost and resistant to earthquakes.
本発明において，防煙垂壁用パネルの製造において使用するシートとしては，当該用途に適合する不燃性シートであればよい。そのようなシートの一例として，樹脂含浸ガラス繊維シートが知られている。樹脂含浸ガラスシートは複数のものが市販されており，例えば，ガラス繊維から作った織布（ガラスクロス）に合成樹脂（ジアリルフタレート樹脂又は不飽和ポリエステル樹脂等）を含浸させ，あるいは更に含浸樹脂にケイ酸その他の無機充填剤を含ませてある，国土交通大臣認定の不燃性シートが販売されており（合成樹脂含浸ガラスクロス，認定番号ＮＭ−２８２０，株式会社トッパン・コスモ製），本発明において好適に用いることができるものの一つである。 In the present invention, the sheet used in the manufacture of the smoke barrier wall panel may be any non-combustible sheet suitable for the application. As an example of such a sheet, a resin-impregnated glass fiber sheet is known. A plurality of resin-impregnated glass sheets are commercially available. For example, a woven fabric (glass cloth) made of glass fibers is impregnated with a synthetic resin (diallyl phthalate resin or unsaturated polyester resin), or the impregnated resin is further impregnated. A non-combustible sheet certified by the Minister of Land, Infrastructure, Transport and Tourism that contains silicic acid and other inorganic fillers is sold (synthetic resin impregnated glass cloth, certification number NM-2820, manufactured by Toppan Cosmo Co., Ltd.). This is one that can be suitably used.
本発明において，固定枠体は，壁面に固定でき，且つこれに可動枠体が所定の範囲でスライド可能に挿入され，且つシャフトに取り付けられたスプリング（例えばコイルスプリング）の一端の位置をナットにより調整でき，スプリングで可動枠体を壁方向に押すことのできるものであれば，それ以外の具体的な形状，構造は任意である。固定枠体の壁面への固定は，ボルト等の当業者に知られた取り付け手段によって行うものであってよく，その場合に，ボルトを通して壁面に固定するためのボルト穴は，固定枠体の適した位置を適宜選んで設けておけばよい。固定枠体を形成する材料の例としては，アルミニウム，アルミニウム合金，ステンレススチールその他の金属が通常好ましいが，設計上負荷させる張力の強弱や，固定枠体の部位によっては，各種の硬質の不燃性樹脂（各種の有機／無機充填材を含有するものを含む）を適宜選択して用いることもできる。 In the present invention, the fixed frame body can be fixed to the wall surface, the movable frame body is slidably inserted within a predetermined range, and one end of a spring (for example, a coil spring) attached to the shaft is positioned by a nut. As long as it can be adjusted and the movable frame can be pushed toward the wall with a spring, the other specific shapes and structures are arbitrary. The fixing frame body may be fixed to the wall surface by an attachment means known to those skilled in the art, such as a bolt. In that case, the bolt hole for fixing the fixing frame body to the wall surface is suitable for the fixing frame body. It is sufficient to select the appropriate position. Examples of materials that form the fixed frame are usually aluminum, aluminum alloy, stainless steel, and other metals. However, depending on the strength of the applied load and the location of the fixed frame, various hard nonflammable materials Resins (including those containing various organic / inorganic fillers) can be appropriately selected and used.
可動枠体は，固定枠体にスライド可能に挿入され，壁面側の端部から内部にシャフトが挿入でき，且つシート保持部材を一体構造の一部として含むか又は取り付け可能な別体としてを含むものであれば，それ以外の具体的な形状，構造は任意である。可動枠体を形成する材料は，固定枠体と同様であってよい。 The movable frame body is slidably inserted into the fixed frame body, the shaft can be inserted into the inside from the end on the wall surface side, and the sheet holding member is included as a part of an integral structure or as a separate body that can be attached If it is a thing, the concrete shape and structure other than that are arbitrary. The material forming the movable frame may be the same as that of the fixed frame.
可動枠体の一部を構成する一体又は別体のシート保持部材は，不燃性シートの縁部にこれを確実に取り付けるための結合手段を備えた部材である。シート取り付け時の取り扱いの簡便さを考慮すれば，別体である方が好ましい。保持部材は，典型的には，シートの幅に亘って延びた板状の部分を含んだ部材である。保持部材にシートの縁部を取り付けるための結合手段は，シートを張った状態に維持し続けるのに耐える手段であればよい。そのような手段の簡便なものは，例えば，シートにあけた取り付け用の穴と重ね合わせてボルトを通すためのボルト穴及びこれに通すねじ付きボルトとナット，又は，横穴つきボルトとこれに通すピン（割りピン，スナップピン等）等の機械的結合手段が挙げられるがそれらに限定されない。そのような結合手段を設ける個数及び位置は，シートに張力を可能な限り均一にかけるのに適した位置及び個数であり，通常，ほぼ均等に複数箇所に設ければよい。 The integral or separate sheet holding member constituting a part of the movable frame body is a member provided with a coupling means for securely attaching it to the edge of the non-combustible sheet. Considering the ease of handling when attaching the seat, a separate body is preferable. The holding member is typically a member including a plate-like portion extending over the width of the sheet. The coupling means for attaching the edge of the sheet to the holding member may be any means that can withstand the continuous maintenance of the sheet. A simple example of such means is, for example, a bolt hole for passing a bolt superimposed on a mounting hole drilled in a seat and a threaded bolt and nut passing through it, or a bolt with a horizontal hole passing through it. Examples include, but are not limited to, mechanical coupling means such as pins (split pins, snap pins, etc.). The number and position of such coupling means are suitable for applying the tension to the sheet as uniformly as possible, and it is usually sufficient to provide it at a plurality of locations almost uniformly.
シート保持部材が可動枠体の他の部分と別体の場合，防煙垂壁の設置時におけるシート保持部材と他の部分との結合は，２つの部材を結合できる適宜の方法（例えば，ボルトとナット若しくはピン，ボルトとねじ穴，或いは，フックとこれを掛ける穴，ループ又はフック等のような対をなす係止構造その他）で行えばよい。それらの中でも，防煙垂壁設置時の作業性の高いものは，係止部材と他の部分のうち一方がフックを備え他方がこれを係止させる穴，ループ又はフック等，対をなす係止構造を備えたものである。 When the sheet holding member is separate from the other parts of the movable frame body, the sheet holding member and the other part can be connected to each other by an appropriate method (for example, a bolt). And a nut or pin, a bolt and a screw hole, or a hook and a hole for hanging the hook, a pair of locking structures such as a loop or a hook, and the like. Among them, the one with high workability when installing a smoke barrier is a pair of engagement members and other parts such as holes, loops or hooks, one of which has a hook and the other has a hook. It has a stop structure.
固定枠体に設けられたシャフトの本数は，少なくとも１本であり，固定枠体及び可動枠体の上下幅に応じて２本，３本又はそれ以上と，適宜設定すればよい。またシャフトを設ける位置は，可動枠体にとってはスプリングの押圧力が直接作用する位置であるため，可動枠体全体にスプリングの押圧力が無理なく作用できるよう，可動枠体の具体的形状，構造に適した位置を適宜選択すればよい。シャフトの本数が一本の場合は，通常固定枠体の中央付近とすればよく，２本の場合は，例えば，固定枠体の上下端近く又はそれより適宜内側寄りに，３本の場合は，例えば，固定枠体の上下端近く及び中央付近に，それぞれ設ければよいが，これらに限定されない。 The number of shafts provided in the fixed frame body is at least one, and may be appropriately set to 2, 3 or more according to the vertical width of the fixed frame body and the movable frame body. In addition, the position where the shaft is provided is the position where the pressing force of the spring acts directly on the movable frame, so that the specific shape and structure of the movable frame can be applied to the entire movable frame without difficulty. A position suitable for the above may be selected as appropriate. When the number of shafts is one, it is usually sufficient to be near the center of the fixed frame. In the case of two, for example, near the upper and lower ends of the fixed frame or closer to the inside as appropriate. For example, it may be provided near the upper and lower ends and near the center of the fixed frame, but is not limited thereto.
シャフトには，先端側の外周面に少なくとも所定の範囲にわたる雄ねじが形成されている。この雄ねじは，ナットをこれに螺着させ，これを回すことで，シャフト上のナットの位置を移動させ，それによりシャフトに取り付けられたスプリングの一端の位置を調整することを可能にする。ナットを締め込んだ場合，ナットの位置は，固定枠体の固定されている壁面に接近するため，スプリングの可動域がそれだけ壁面寄りとなり，シートが貼られていると，これを引張する。その場合の張力の強さは，ナットの締め込みにより調整可能である。勿論，スプリングの一端を確実に支持するに必要な受け面をナット自体が備えていても，或いはそのような面をワッシャー（座金）を間に挟むことにより確保してもよい。 The shaft has a male screw extending over at least a predetermined range on the outer peripheral surface on the tip side. This male thread allows the nut to be screwed onto it and turned to move the position of the nut on the shaft, thereby adjusting the position of one end of the spring attached to the shaft. When the nut is tightened, the position of the nut approaches the wall surface to which the fixed frame is fixed. Therefore, the movable range of the spring is closer to the wall surface, and when the sheet is stuck, it is pulled. The strength of the tension in that case can be adjusted by tightening the nut. Of course, the nut itself may be provided with a receiving surface necessary to securely support one end of the spring, or such a surface may be secured by sandwiching a washer (washer).
壁の間に張られる１枚のシートに対し，その両端部をそれぞれ壁に取り付けられた本発明の装置で保持することができるが，設置場所の状況によっては，一方の側のみを本発明の装置で保持し，他方の側は従来の，スプリングを用いない既設の保持機構を流用することも可能である。但し，シートの両端部を本発明の装置で保持することがより好ましい。シートの両端部をスプリングを介して保持しておけば，地震時の揺れに伴う建築物の歪みに起因してシートや保持装置に作用する過度の力を，一層確実に緩和できるからである。 Both ends of a single sheet stretched between walls can be held by the apparatus of the present invention attached to the wall. However, depending on the situation of the installation location, only one side of the sheet can be It is also possible to use a conventional holding mechanism that does not use a spring and that is held by the apparatus and has the other side. However, it is more preferable to hold both ends of the sheet with the apparatus of the present invention. This is because if the both ends of the sheet are held via springs, the excessive force acting on the sheet and the holding device due to the distortion of the building due to the shaking at the time of the earthquake can be more reliably alleviated.
シートが張られた後は，空気（煙）の流路を塞ぐため，シートが通るための間隙（スリット等）を残して固定枠体と可動枠体とを覆うカバーを施せばよく，そのようなカバーの形状，構造は，固定枠体及び可動枠体の具体的形状に合わせて適宜定めることができる。 After the sheet is stretched, a cover covering the fixed frame body and the movable frame body may be provided to leave a gap (slit, etc.) through which the sheet passes in order to block the air (smoke) flow path. The shape and structure of the simple cover can be appropriately determined according to the specific shapes of the fixed frame body and the movable frame body.
以下，一実施例を参照して本発明を更に具体的に説明するが，本発明が実施例に限定されることは意図しない。
図１は本発明の装置の外観を示す図面写真，図２は立面図，図３は上面図を，それぞれ示す。これらの図において，１は金属製の固定枠体であり，全体としてコの字状の外形をなし，その各辺をなす部分の断面は，それぞれが内側に向かってに開いたコの字状をなしている。３は金属製の可動枠体であり，本実施例では，別体であるシート端部保持部材５と，全体としてコの字状の可動枠部材９とから構成されている。可動枠体３は，固定枠体１の内側のコの字状の断面の内側で水平方向にスライド可能に収まっている。可動枠部材９のうち，コの字状の外形の中間の辺をなす可動縦枠部９ａは，外側（すなわち固定枠体側）に向かって開いたコの字状の断面を有する。可動縦枠部９ａの断面幅は，固定枠体１のコの字形状の中間の辺をなす固定縦枠部１ａの断面の内法より小さく，従って，可動枠部材９の可動縦枠部９ａは，固定縦枠部１ａまでスライドさせたとき，後者のコの字状の断面内に受け入れられる。
Hereinafter, the present invention will be described in more detail with reference to one example, but the present invention is not intended to be limited to the example.
FIG. 1 is a photograph showing the appearance of the apparatus of the present invention, FIG. 2 is an elevation view, and FIG. 3 is a top view. In these drawings, reference numeral 1 denotes a metal fixed frame, which has a U-shaped outer shape as a whole, and the cross-section of the portion forming each side thereof is a U-shaped opening that opens inward. I am doing. Reference numeral 3 denotes a metal movable frame, which in this embodiment is composed of a separate sheet end holding member 5 and a U-shaped movable frame member 9 as a whole. The movable frame 3 is slidable in the horizontal direction inside the U-shaped cross section inside the fixed frame 1. Of the movable frame member 9, the movable vertical frame portion 9 a that forms the middle side of the U-shaped outer shape has a U-shaped cross section that opens toward the outside (that is, the fixed frame body side). The cross-sectional width of the movable vertical frame portion 9a is smaller than the inner method of the cross-section of the fixed vertical frame portion 1a forming the middle side of the U-shape of the fixed frame body 1, and accordingly, the movable vertical frame portion 9a of the movable frame member 9 is. Is received in the latter U-shaped cross section when slid to the fixed vertical frame portion 1a.
固定枠体１には，壁に縦方向に固定される部分である固定縦枠部１ａの内側２箇所から立ち上がってシート端部保持部材５の方向に延びる２本のシャフト１７が備えられている。シャフト１７には，外周に雄ねじが形成されており，シャフト１７の基部は，固定縦枠部１ａの内側に溶接されているナット（図では見えない）に螺着して且つ一部を溶接することにより脱落不能に固定されている。当該ナットの頭部の最大径は，可動縦枠部９ａのコの字状断面の内法より小さく，可動縦枠部９ａがスライドして固定縦枠部１ａに当接したしたときには，当該ナットは，可動縦枠部９ａのコの字状の断面内に収まり，可動縦枠部９ａとは干渉しない。 The fixed frame body 1 is provided with two shafts 17 that rise from two positions inside the fixed vertical frame portion 1a that is a portion fixed to the wall in the vertical direction and extend in the direction of the sheet end holding member 5. . The shaft 17 is formed with a male screw on the outer periphery, and the base portion of the shaft 17 is screwed to a nut (not shown in the figure) welded to the inside of the fixed vertical frame portion 1a and a part thereof is welded. It is fixed so that it cannot fall off. The maximum diameter of the head of the nut is smaller than the inner method of the U-shaped cross section of the movable vertical frame portion 9a, and when the movable vertical frame portion 9a slides and contacts the fixed vertical frame portion 1a, the nut Falls within the U-shaped cross section of the movable vertical frame portion 9a and does not interfere with the movable vertical frame portion 9a.
２本のシャフト１７は，それらに対応する位置において可動縦枠部９ａに設けられたシャフト穴を通過して，可動枠部材９の内側に配置されたコイルスプリング１９を通って延びており，先端付近において，コイルスプリング１９の末端と当接するワッシャー２１と共にナット２３がこれに取り付けられている。こうして，スプリング１９は，可動枠部材９の可動縦枠部９ａの表面（シャフト穴の周囲）とシャフト１７の末端付近に取り付けられた察シャーとの間に挟まれている。 The two shafts 17 extend through a coil spring 19 disposed on the inner side of the movable frame member 9 through a shaft hole provided in the movable vertical frame portion 9a at a position corresponding to the two shafts 17. In the vicinity, a nut 23 is attached to this together with a washer 21 that contacts the end of the coil spring 19. Thus, the spring 19 is sandwiched between the surface of the movable vertical frame portion 9 a of the movable frame member 9 (around the shaft hole) and the sensing shear attached near the end of the shaft 17.
シート端部保持部材５は，上下端にフック状に曲がった舌部２５を備えている。本実施例ではフック型に曲げられているが，平面的であることもできる。舌部２５を，コの字状の可動枠部材９の端部に設けられた丸穴２７に通した後，これに連続して設けられているスリット２９に舌部２５の根元を通すことにより，可動枠部材９に取り付けられている。 The sheet end holding member 5 includes tongue portions 25 bent in a hook shape at upper and lower ends. In this embodiment, it is bent into a hook shape, but it can also be planar. By passing the tongue 25 through a round hole 27 provided at the end of the U-shaped movable frame member 9 and then passing the root of the tongue 25 through a slit 29 provided continuously therewith. , Are attached to the movable frame member 9.
シート端部保持部材５は，３層の金属製プレートより構成されており，中間に位置するプレート（中間プレート）は上下端に上述の舌部２５を備え，これを表裏両側から，舌部２５を残して２枚の外側プレートで挟んだ形態のものである。これら３層のプレートは，重ね合わせたときに一致するボルト穴を，長手方向に複数個所（図では４箇所）備えている。シート端部保持部材５の舌部２５は，丸穴２７内では回転が可能であり，従って，シート端部保持部材５は，その舌部２５の基部がスリット２９内に入るまでは，可動枠部材９に対して自身の長手軸周りに回転させることが可能である。 The sheet end holding member 5 is composed of a three-layer metal plate. A plate (intermediate plate) located in the middle is provided with the above-described tongue portion 25 at the upper and lower ends, and the tongue portion 25 is provided from both the front and back sides. And is sandwiched between two outer plates. These three-layer plates are provided with a plurality of bolt holes (four in the figure) in the longitudinal direction that coincide with each other when overlapped. The tongue 25 of the sheet end holding member 5 can be rotated in the round hole 27. Therefore, the sheet end holding member 5 is movable until the base of the tongue 25 enters the slit 29. It is possible to rotate the member 9 around its longitudinal axis.
本実施例を用いた防煙垂壁用シートの設置手順の概略を以下に示す。固定枠体１の壁への取り付けは，例えば，固定縦枠部１ａに複数の穴を設けこれを通してボルトで壁面に固定する等により行うことができる。具体的な固定方法は，壁の材質や表面形状，位置等に応じて行いやすい方法を適宜選択すればよく，特に制約はない。また固定枠体１の取り付けは，壁面に対して直接行ってもよく，また壁面に固定された他の適宜の器具を介して行ってもよい。 The outline of the installation procedure of the sheet | seat for smoke-proof hanging walls using a present Example is shown below. The fixed frame body 1 can be attached to the wall by, for example, providing a plurality of holes in the fixed vertical frame portion 1a and fixing them to the wall surface with bolts. As a specific fixing method, a method that is easy to perform according to the material, surface shape, position, and the like of the wall may be selected as appropriate, and there is no particular limitation. The attachment of the fixed frame 1 may be performed directly on the wall surface, or may be performed via another appropriate instrument fixed on the wall surface.
一対の壁に取り付けた一対の固定枠体１のそれぞれにおいて，上下各辺のコの字状の断面の内側に，可動枠部材９の可動縦枠部９ａの上下の端部を挿入し，固定枠体１の奥へとスライドさせ，固定縦枠部１ａから延びる２本のシャフト１７を，可動縦枠部９ａに設けられた２個のシャフト穴に通し，シャフト１７にスプリング１９を被せた後，シャフト１７の先端側にナット２３（及びワッシャー）を取り付ける。次いで，目的とする壁間に張るのに必要な長さに対しある程度余裕を持たせて切断した防煙垂壁用シートＳ〔例えば，前述の合成樹脂含浸ガラスクロス（認定番号ＮＭ−２８２０，株式会社トッパン・コスモ製）〕を，防煙垂壁の天井側に備えられている吊り下げ機構を利用して予め吊り下げておき，その両端部を，一対のシート端部保持部材５の中間プレートに仮固定する。仮固定には，例えば両面テープを用いることができる。この状態で各中間プレートの上下の舌部２５を，各固定枠体１に挿入された可動部材９の上下の端部にある丸穴２７に通す。中間プレートは，舌部２５を丸穴２７に挿入した状態で軸まわりに回転させることができる。必要に応じて中間プレートを回して中間プレートの周りに余分なシート部分を巻きつけ，シートの弛みを減らし，シートに張りを持たせる（シートは非常に薄く且つ柔軟であり，必要に応じて中間プレートの周りに何重にも巻くことができる）。次いで，舌部２５の根元をスリット２９に滑り込ませることで，中間プレートの回転を禁止し，その状態で中間プレート及びシートを一対の外側プレートにより両側から挟み，ボルト穴にボルト３１を（穴内のシート部分は貫いて）通し，先端にナットを螺着して中間プレート及びシートを外側プレートの間に挟み付けて固定する。これにより，ある程度張りはあるが幾分弛みもある状態で，一対の壁に取り付けられた一対の装置の間にシートが張られる。この状態で，シャフト１７に螺着されているナット２３を回して，ワッシャーを介してスプリング１７の末端を固定縦枠部１ａの方へと押し込むことによって，押されるたスプリング１７の他端により可動枠体３の可動縦枠部９ａを押して，固定枠体１の固定縦枠部１ａの方へと移動させることができる。従って，一対の壁に取り付けられた一対の装置の間にシートを張るに際して，ナット２３を調節することで，シート端部保持部材５同士の間隔を適度に拡げてシートに適切な張力を与え，スプリング１７によりこれを保持させることができる。なお，シートが張られた後は，可動枠体に保持されたシートを通すことのできる間隙を残した状態で，装置の固定枠体１及び可動枠体３を適宜のカバー部材（図示せず）で覆うことにより，それら枠の内側を通る空気（煙）の流路を遮断すればよい。 In each of the pair of fixed frame bodies 1 attached to the pair of walls, the upper and lower ends of the movable vertical frame portion 9a of the movable frame member 9 are inserted and fixed inside the U-shaped cross sections of the upper and lower sides. After sliding to the back of the frame 1 and passing the two shafts 17 extending from the fixed vertical frame portion 1a through the two shaft holes provided in the movable vertical frame portion 9a, the shaft 17 is covered with the spring 19 , A nut 23 (and a washer) is attached to the tip end side of the shaft 17. Subsequently, the sheet S for smoke-proof hanging walls cut to some extent with respect to the length necessary to stretch between the target walls [for example, the above-mentioned synthetic resin impregnated glass cloth (certification number NM-2820, stock Company Toppan Cosmo)) is suspended in advance using a suspension mechanism provided on the ceiling side of the smoke proof wall, and both ends thereof are intermediate plates of the pair of sheet end holding members 5. Temporarily fix to. For temporary fixing, for example, a double-sided tape can be used. In this state, the upper and lower tongues 25 of each intermediate plate are passed through the round holes 27 at the upper and lower ends of the movable member 9 inserted in each fixed frame 1. The intermediate plate can be rotated around the axis with the tongue 25 inserted into the round hole 27. Rotate the intermediate plate as necessary to wrap the excess sheet around the intermediate plate, reduce sheet slack, and tension the sheet (the sheet is very thin and flexible, with intermediate if necessary Can be wrapped around the plate multiple times). Next, the base of the tongue portion 25 is slid into the slit 29 to prohibit the rotation of the intermediate plate. In this state, the intermediate plate and the sheet are sandwiched by the pair of outer plates from both sides, and the bolt 31 is inserted into the bolt hole (within the hole). Pass the sheet part through, and screw the nut to the tip, and fix the intermediate plate and sheet between the outer plates. This allows the sheet to be stretched between a pair of devices attached to a pair of walls with some tension but some slack. In this state, the nut 23 screwed on the shaft 17 is turned, and the end of the spring 17 is pushed toward the fixed vertical frame portion 1a through the washer, so that the other end of the pushed spring 17 is movable. The movable vertical frame portion 9 a of the frame body 3 can be pushed and moved toward the fixed vertical frame portion 1 a of the fixed frame body 1. Therefore, when the sheet is stretched between the pair of devices attached to the pair of walls, the nut 23 is adjusted so that the interval between the sheet end holding members 5 is appropriately widened and an appropriate tension is applied to the sheet. This can be held by the spring 17. After the sheet is stretched, the fixed frame body 1 and the movable frame body 3 of the apparatus are appropriately covered with an appropriate cover member (not shown) while leaving a gap through which the sheet held by the movable frame body can pass. ) To block the flow path of air (smoke) passing through the inside of the frame.
本発明の防煙垂壁取り付け装置は，天井から吊り下げられた１枚の不燃性シートの両端をそれぞれ端部保持具により保持し且つ張力を付与するタイプの防煙垂壁において，地震時におけるシートや取り付け装置の破断や破損，変形を極めて効果的に防止できる装置として有用性が高い。更には，既設の防煙垂壁において天井側の機構をそのまま用いることができるため，本発明は，大量にある既設の防煙垂壁を，極めて簡単且つ迅速，低コストで地震に強い防煙垂壁へと改善することを可能にする。 The smoke-proof hanging wall mounting device of the present invention is a smoke-proof hanging wall of the type that holds both ends of one non-combustible sheet suspended from the ceiling by end holders and applies tension, at the time of an earthquake. It is highly useful as a device that can effectively prevent breakage, breakage, and deformation of the seat and the mounting device. Furthermore, since the ceiling side mechanism can be used as it is in the existing smoke proof wall, the present invention provides a large amount of existing smoke proof wall that is extremely simple, quick, low cost, and resistant to earthquakes. It makes it possible to improve to the vertical wall.
１： 固定枠体
１ａ： 固定縦枠部
３： 可動枠体
５： シート端部保持部材
９： 可動枠部材
９ａ： 可動縦枠部
１７： シャフト
１９： スプリング
２１： ワッシャー
２３： ナット
２５： 舌部
２７： 丸穴
２９： スリット
３１： ボルト
Ｓ： シート
1: Fixed frame 1a: Fixed vertical frame part 3: Movable frame body 5: Sheet end holding member 9: Movable frame member 9a: Movable vertical frame part 17: Shaft 19: Spring 21: Washer 23: Nut 25: Tongue part 27: Round hole 29: Slit 31: Bolt S: Sheet
Claims (8)
（ａ）壁に対して固定される固定枠体と，該固定枠体に挿入された可動枠体であってシートが張られる方向にスライド可能なものである可動枠体とを含んでなり，
（ｂ）該固定枠体が，その壁側の縁部からシート方向に，該可動枠体の壁側の縁部を貫通して該可動枠体の内部へと延びる少なくとも１本のシャフトであって少なくともその先端側の外周面に所定の範囲にわたって雄ねじが形成されているものであるシャフトと，該シャフトの，該可動枠体の壁側の縁部を貫通して延びている部分を中に通して取り付けられたスプリングであって，該可動枠体の壁側の縁部の該シャフトが貫通している部位の周囲と該シャフトの雄ねじに螺合されたナットとの間に挟まれて取り付けられたスプリングとを含んでおり，
（ｃ）該可動枠体が，その内部に該シャフト，スプリング及びナットを収容できる空間を備えると共に，壁とは反対側の縁部において，シートの端部を固定するシート端部保持部材を含むものである，装置。 In the installation of smoke barriers, a device for attaching to the wall the end of a sheet for smoke barriers that is stretched across the walls of the building,
(A) a fixed frame that is fixed to the wall, and a movable frame that is inserted into the fixed frame and is slidable in the direction in which the sheet is stretched,
(B) The fixed frame is at least one shaft extending from the wall-side edge of the movable frame in the sheet direction through the wall-side edge of the movable frame to the inside of the movable frame. A shaft in which a male screw is formed over a predetermined range on at least the outer peripheral surface of the distal end side thereof, and a portion of the shaft extending through the edge of the wall side of the movable frame body A spring mounted through and attached by being sandwiched between the periphery of the wall-side edge of the movable frame and the nut threadedly engaged with the male screw of the shaft Springs, and
(C) The movable frame body includes a space in which the shaft, the spring, and the nut can be accommodated, and a sheet end holding member that fixes the end of the sheet at the edge opposite to the wall. A device that is
The apparatus according to claim 1, further comprising a cover member that covers the fixed frame and the movable frame with at least a gap through which the sheet held by the movable frame can pass.
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| WO2022127539A1 (en) * | 2020-12-16 | 2022-06-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Integrated cold-formed thin-wall steel and lightweight concrete composite wallboard structure |
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| JP3045590U (en) * | 1997-07-24 | 1998-02-03 | 清隆 三好 | Seismic isolation glass smoke proof wall |
| JP2000320050A (en) * | 1999-03-05 | 2000-11-21 | Shimizu Corp | Partition wall structure |
| JP3902470B2 (en) * | 2002-01-11 | 2007-04-04 | 城北企画株式会社 | Sheet spreading device |
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