JP4391249B2 - Fire and smoke prevention equipment at the elevator hall - Google Patents

Fire and smoke prevention equipment at the elevator hall Download PDF

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JP4391249B2
JP4391249B2 JP2004010829A JP2004010829A JP4391249B2 JP 4391249 B2 JP4391249 B2 JP 4391249B2 JP 2004010829 A JP2004010829 A JP 2004010829A JP 2004010829 A JP2004010829 A JP 2004010829A JP 4391249 B2 JP4391249 B2 JP 4391249B2
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screen
weight
fire
smoke
prevention
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JP2005201012A (en
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健二 野村
敬 石田
信寛 西村
勝美 柴田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

この発明は、ビル火災発生時等に用いられるエレベータ乗場の防火防煙装置に関するものである。   The present invention relates to a fire prevention and smoke prevention device for an elevator hall used when a building fire occurs.

従来のエレベータ乗場の防火防煙装置においては、乗場三方枠上方の幕板部内に、防火防煙スクリーン装置を収納している。そして、火災発生時に、火災感知器等の信号を受信し、乗場三方枠上方の幕板部に巻き取り収納されている防火防煙スクリーンが降下して、エレベータ乗場ドア前面を閉鎖し、防火区画を形成している（例えば、特許文献１参照）。   In a conventional fire prevention and smoke prevention device for an elevator hall, a fire prevention and smoke prevention screen device is accommodated in a curtain plate part above the three-way frame of the hall. When a fire breaks out, it receives a signal from a fire detector, etc., and the fire and smoke screen that is wound around the curtain plate above the landing three-way frame descends to close the front of the elevator landing door, (For example, refer to Patent Document 1).

特開平１１−１２８３８０号公報Japanese Patent Laid-Open No. 11-128380

従来のエレベータ乗場の防火防煙装置においては、万が一、防火防煙スクリーンが全閉している乗場にエレベータかごが着床し、かご内に閉じ込められた人が、防火防煙スクリーンを手動開放して避難する場合に、以下の問題がある。
・安全性、避難性を考慮し、防火防煙スクリーンの下端部に設けられるスクリーン錘を軽くする為、火災時の熱風等により、スクリーン錘が持ち上げられ、スクリーン錘と乗場床面との間に隙間ができ、気密性能及び耐火性能が失われることがある。
・緊急の状態で防火防煙スクリーンを手動開放する場合、スクリーン錘の座板部に開けられた取っ手穴では手を掛け難く、防火防煙スクリーンを持ち上げ難い為、避難性が落ちる。 In the case of a conventional fire prevention and smoke prevention device for an elevator hall, in the unlikely event that an elevator car is landed in a hall where the fire prevention and smoke prevention screen is fully closed, a person trapped in the car manually opens the fire prevention and smoke prevention screen. When evacuating, there are the following problems.
・ In consideration of safety and evacuation, the screen weight provided at the lower end of the fire and smoke screen is lightened, so the screen weight is lifted by hot air during a fire, and between the screen weight and the landing floor surface. A gap may be formed, and airtightness and fire resistance may be lost.
・ If the fire and smoke screen is opened manually in an emergency, the handle hole in the seat plate of the screen weight is difficult to handle and it is difficult to lift the fire and smoke screen, so the evacuation performance is reduced.

この発明は、上述のような課題を解決するためになされたもので、火災による熱風等を受けてスクリーン錘が持ち上げられても、気密性能および耐火性能を保持できるエレベータ乗場の防火防煙装置を提供するものである。   The present invention has been made to solve the above-described problems, and provides a fire prevention and smoke prevention device for an elevator hall that can maintain airtight performance and fire resistance even when a screen weight is lifted by receiving hot air from a fire. It is to provide.

この発明に係るエレベータ乗場の防火防煙装置においては、防火防煙スクリーンの下端部にスクリーン錘が取り付けられ、火災発生時に、防火防煙スクリーンが降下して、エレベータ乗場ドア前面を閉鎖し防火区画を形成するものにおいて、スクリーン錘は、防火防煙スクリーンの下端部の昇降路側及び乗場側に設けられ、火災発生時に防火防煙スクリーンが降下して全閉状態にある時は、乗場床面に接触して気密性能および耐火性能を保持するスクリーン錘本体と、スクリーン錘本体に対し上下方向にスライドできるように取り付けられ、熱風等により乗場床面に接触しているスクリーン錘が持ち上げられた時に自重により降下してスクリーン錘本体と乗場床面との間の隙間を塞ぐ閉塞体とを備え、閉塞体はスクリーン錘本体の昇降路側及び乗場側の面を覆うように設けられたＵ字状の錘カバーであり、該錘カバーの乗場側のみがスクリーン錘本体に対して上下方向にスライドできるように取り付けられ、かつ錘カバーの昇降路側がスクリーン錘本体の昇降路側の面に沿ってスライドし、スクリーン錘が持ち上げられた時に、錘カバーの昇降路側が、スクリーン錘本体の昇降路側の面と水平投影上、一部重なっているものである。 In the fire prevention and smoke prevention device of the elevator hall according to the present invention, a screen weight is attached to the lower end portion of the fire prevention and smoke prevention screen, and in the event of a fire, the fire prevention and smoke prevention screen descends to close the front of the elevator hall door and to prevent fire The screen weight is provided on the hoistway side and the landing side at the lower end of the fire and smoke screen, and when the fire and smoke screen is lowered and fully closed in the event of a fire, The screen weight body that keeps airtightness and fireproof performance in contact with each other, and is attached so that it can slide up and down with respect to the screen weight body, and when the screen weight in contact with the landing floor surface is lifted by hot air, etc. and a closure for closing the gap between the screen weight body and the landing floor to drop by, occlusion body hoistway及screen weight body A U-shaped weight cover provided so as to cover the surface on the landing side, and is attached so that only the landing side of the weight cover can slide in the vertical direction with respect to the screen weight main body, and the hoistway of the weight cover When the screen slides along the hoistway side surface of the screen weight body and the screen weight is lifted, the hoistway side of the weight cover partially overlaps with the hoistway side surface of the screen weight body in horizontal projection. is there.

この発明のエレベータ乗場の防火防煙装置によれば、防火防煙スクリーンが火災による熱風等を受け、スクレーン錘が持ち上げられても、閉塞体が降下してスクリーン錘本体と乗場床面との間の隙間を塞ぐので、気密性能および耐火性能が向上する。また、錘の質量を軽減することにより、避難時の開放力を軽減することができ、避難性能が向上する。   According to the fire prevention and smoke prevention device of the elevator hall according to the present invention, even if the fire prevention and smoke prevention screen receives hot air or the like due to fire and the scrane weight is lifted, the closing body descends and the screen weight main body and the landing floor surface are separated. Since the gap is closed, airtightness and fire resistance are improved. Further, by reducing the mass of the weight, the opening force during evacuation can be reduced, and the evacuation performance is improved.

参考例．
図１はこの発明の参考例におけるエレベータ乗場を示す斜視図、図２はこの発明の参考例におけるエレベータ乗場の防火防煙装置の上部構造を示す断面図、図３はこの発明の参考例におけるエレベータ乗場の防火防煙装置の要部構造を示す拡大断面図、図４はエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図、図５は全閉状態にある防火防煙スクリーンが熱風等によりスクリーン錘が持ち上がった状態を示す要部の断面図である。 Reference example.
Figure 1 is a perspective view showing an elevator hall in a reference example of the present invention. FIG. 2 is a cross-sectional view showing the upper structure of fire smoke device for an elevator hall in a reference example of the present invention, an elevator in the reference example of FIG. 3 is the invention FIG. 4 is an enlarged cross-sectional view showing the main structure of the fire prevention and smoke prevention device at the landing, FIG. 4 is a cross sectional view of the main portion showing a state in which the fire prevention and smoke prevention screen of the elevator fire prevention and smoke prevention device is fully closed, and FIG. It is sectional drawing of the principal part which shows the state which the screen weight lifted by the hot air etc. in the fire prevention smoke-proof screen in a closed state.

図１、図２において、防火防煙装置を備えたエレベータ乗場は、乗場ドア装置１、乗場ドア２、乗場三方枠３、乗場三方枠の縦枠３ａ、乗場三方枠の幕板３ｂ、乗場三方枠の上枠３ｃ、乗場三方枠３の幕板３ｂの背面内側に収納された防火防煙スクリーン装置４、乗場の床面５、および防火・防煙スクリーン装置４に巻き込まれた防火防煙スクリーン６、乗場三方枠３の縦枠３ａに垂直方向に形成されたスクリーン降下溝７、および防火防煙スクリーン６の下端部に取り付けられたスクリーン錘８から構成されている。
この発明の参考例における防火防煙装置の防火防煙スクリーンの下部構造は、図３〜図５に示すように、防火防煙スクリーン６の下端部にスクリーン錘８が取り付けられている。このスクリーン錘８は、防火防煙スクリーン６の下端部を間に挟んでその両側から互いに対向するよう配置された各一対の外側の錘体９およびスクリーン側の座板１０と、昇降路側の錘体９の前面側を覆う断面Ｌ字状の錘カバー１１と、乗場側の錘体９の前面側を覆うとともに上下方向の長穴（図示せず）が設けられた平板状の塞ぎ板１２と、この平板状の塞ぎ板１２を長穴を介して固定する固定用ねじ１３から構成されている。上記平板状の塞ぎ板１２は、長穴により上下方向に昇降移動可能に取り付けられているので、自重により降下できるように構成されている。この参考例では、錘体９、座板１０および錘カバー１１がスクリーン錘本体を構成し、塞ぎ板１２が閉塞体を構成する。 In FIG. 1 and FIG. 2, the elevator hall equipped with the fire prevention and smoke prevention device is the landing door device 1, the landing door 2, the landing three-way frame 3, the vertical frame 3a of the landing three-way frame, the curtain plate 3b of the landing three-way frame, and the three-way landing. Fireproof / smoke screen device 4 housed inside the rear surface of the curtain 3b of the frame 3b, the curtain 3b of the hall 3, the floor 5 of the hall, and the fire / smoke screen entangled in the fire / smoke screen device 4 6, a screen descent groove 7 formed in the vertical direction on the vertical frame 3a of the landing three-way frame 3 and a screen weight 8 attached to the lower end of the fireproof and smokeproof screen 6.
As shown in FIGS. 3 to 5, the lower structure of the fire and smoke screen of the fire and smoke prevention apparatus in the reference example of the present invention has a screen weight 8 attached to the lower end portion of the fire and smoke screen 6. The screen weight 8 includes a pair of outer weights 9 and a screen-side seat plate 10 which are arranged so as to face each other from both sides with the lower end portion of the fireproof and smokeproof screen 6 interposed therebetween, and a weight on the hoistway side. A weight cover 11 having an L-shaped cross-section covering the front side of the body 9, a flat block plate 12 covering the front side of the weight side 9 on the landing side and provided with an elongated hole (not shown) in the vertical direction; The plate-shaped closing plate 12 is constituted by a fixing screw 13 for fixing the plate-like closing plate 12 through a long hole. Since the flat closing plate 12 is attached so as to be movable up and down by a long hole, the flat closing plate 12 can be lowered by its own weight. In this reference example , the weight body 9, the seat plate 10, and the weight cover 11 constitute a screen weight body, and the closing plate 12 constitutes a closing body.

このように構成されたエレベータ乗場の防火防煙装置の防火防煙スクリーン６においては、火災発生時に、図４に示すような全閉状態にある時は、スクリーン錘８が乗場床面５に接触し、気密性能および耐火性能を保持している。この防火防煙スクリーン６の全閉状態で、例えば熱風等により、図５に示すように、スクリーン錘８が持ち上げられたとしても、スクリーン錘８と乗場床面５との間の隙間を、自重により降下する平板状の塞ぎ板１２が閉鎖することになるので、エレベータ乗場の気密性能及び耐火性能が向上する。
なお、スクリーン錘８の質量を容易に軽減することができるので、避難時の開放力を軽減することができ、避難性能が向上する。また、スクリーン錘８による挟まれに対しても安全性が向上する。 In the fire prevention and smoke prevention screen 6 of the elevator fire prevention and smoke prevention device configured as described above, when a fire occurs, the screen weight 8 contacts the landing floor 5 when fully closed as shown in FIG. However, it retains hermetic performance and fire resistance. Even if the screen weight 8 is lifted up by, for example, hot air or the like when the fireproof and smokeproof screen 6 is fully closed, the gap between the screen weight 8 and the landing floor 5 is reduced by its own weight. As a result, the flat closing plate 12 descending is closed, so that the airtight performance and fire resistance performance of the elevator hall are improved.
In addition, since the mass of the screen weight 8 can be easily reduced, the opening force at the time of evacuation can be reduced, and the evacuation performance is improved. In addition, safety is improved against pinching by the screen weight 8.

実施の形態１．
図６はこの発明の実施の形態１におけるエレベータ乗場の防火防煙装置の要部構造を示す拡大断面図、図７はエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図、図８は全閉状態にある防火防煙スクリーンが熱風等によりスクリーン錘が持ち上がった状態を示す要部の断面図である。
図中、参考例と同一または相当部分は同一符号で示し、説明を省略する。
この実施の形態１においては、参考例における断面Ｌ字状の錘カバー１１と平板状の塞ぎ板１２とを一体に形成して成る断面Ｕ字状の錘カバー１４を設けたものである。このＵ字状の錘カバー１４の乗場側前面には上下方向の長穴（図示せず）が設けられ、この長穴を介して固定用ねじ１３で固定されるものである。したがって、Ｕ字状の錘カバー１４は、自重により降下できるように構成されている。この実施の形態１では、錘体９、座板１０が錘本体を構成し、Ｕ字状の錘カバー１４が閉塞体と錘本体の一部を構成する。 Embodiment 1 FIG.
FIG. 6 is an enlarged cross-sectional view showing the main structure of the fire prevention and smoke prevention device for the elevator hall according to Embodiment 1 of the present invention, and FIG. 7 shows a state in which the fire prevention and smoke prevention screen of the fire prevention and smoke prevention device for the elevator hall is fully closed. FIG. 8 is a cross-sectional view of the main part showing a state in which the screen weight is lifted by hot air or the like in the fireproof and smokeproof screen in the fully closed state.
In the figure, the same or corresponding parts as those in the reference example are denoted by the same reference numerals, and the description thereof is omitted.
In the first embodiment, it is provided with a U-shaped cross section of the weight cover 14 formed by integrally formed with L-shaped cross section of the weight cover 11 and plate-shaped closing plate 12 in the reference example. The U-shaped weight cover 14 is provided with a vertical hole (not shown) on the front side on the landing side, and is fixed with a fixing screw 13 through the long hole. Therefore, the U-shaped weight cover 14 is configured to be lowered by its own weight. In the first embodiment, the weight body 9 and the seat plate 10 form a weight body, and the U-shaped weight cover 14 forms a block body and a part of the weight body.

このように構成されたエレベータ乗場の防火防煙装置の防火防煙スクリーン６においては、火災発生時に、図７に示すような全閉状態にある時は、スクリーン錘８が乗場床面５に接触し、気密性能および耐火性能を保持している。この防火防煙スクリーン６の全閉状態で、例えば熱風等により、図８に示すように、スクリーン錘８が持ち上げられたとしても、スクリーン錘８と乗場床面５との間の隙間を、自重により降下するＵ字状の塞ぎ板１４が閉鎖することになるので、エレベータ乗場の気密性能及び耐火性能が向上する。
なお、スクリーン錘８の質量を容易に軽減することができるので、避難時の開放力を軽減することができ、避難性能が向上する。また、スクリーン錘８による挟まれに対しても安全性が向上する。特に、Ｕ字状の錘カバー１４によれば、参考例における平板状の塞ぎ板１２に比べて、万一挟まれた場合でも安全性が向上する。また、下側からスクリーン錘８を見た時に錘体９が全く見えない為、乗場意匠性が向上する。 In the fire prevention and smoke prevention screen 6 of the elevator fire prevention and smoke prevention device configured as described above, when a fire occurs, the screen weight 8 contacts the landing floor 5 in the fully closed state as shown in FIG. However, it retains hermetic performance and fire resistance. Even when the screen weight 8 is lifted by hot air or the like in the fully closed state of the fire / smoke / screen 6 as shown in FIG. 8, the gap between the screen weight 8 and the landing floor 5 is reduced by its own weight. As a result, the U-shaped closing plate 14 descending is closed, so that the airtight performance and fire resistance performance of the elevator hall are improved.
In addition, since the mass of the screen weight 8 can be easily reduced, the opening force at the time of evacuation can be reduced, and the evacuation performance is improved. In addition, safety is improved against pinching by the screen weight 8. In particular, according to the U-shaped weight cover 14, the safety is improved even when it is sandwiched, compared to the flat closing plate 12 in the reference example . Moreover, since the weight body 9 is not seen at all when the screen weight 8 is viewed from the lower side, the hall design is improved.

実施の形態２．
図９はこの発明の実施の形態２におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図、図１０はスクリーン錘の構造を示す一部背面図である。
図中、実施の形態１と同一または相当部分は同一符号で示し、説明を省略する。
この実施の形態２は、実施の形態１と同様に、断面Ｕ字状の錘カバー１４を設けたものである。このＵ字状の錘カバー１４の乗場側の側面には上下方向の長穴（図示せず）が設けられ、この長穴を介して固定用ねじ１３で固定されるものである。したがって、Ｕ字状の錘カバー１４は、自重で降下できるように構成されている。そして、実施の形態２においては、防火防煙スクリーン６の下端部を間に挟んでスクリーン６の両側面に配置された座板１０の上端面の中央部を更に上方に延長し、Ｌ字状に折り曲げた取手１５を形成したものである。この取手１５は座板１０の上端面中央部に設けたが、中央で振り分けて左右両側に２個所設けても良い。 Embodiment 2 FIG.
FIG. 9 is a cross-sectional view of the main part showing a state in which the fire and smoke screen of the elevator hall according to Embodiment 2 of the present invention is fully closed, and FIG. 10 is a partial rear view showing the structure of the screen weight. FIG.
In the figure, the form 1 and the same or corresponding parts of the embodiment are denoted by the same reference numerals, and description thereof is omitted.
In the second embodiment, similarly to the first embodiment, a weight cover 14 having a U-shaped cross section is provided. A vertical hole (not shown) is provided on the side surface on the landing side of the U-shaped weight cover 14 and is fixed by a fixing screw 13 through the long hole. Therefore, the U-shaped weight cover 14 is configured to be able to descend by its own weight. And in Embodiment 2 , the center part of the upper end surface of the seat board 10 arrange | positioned on both sides | surfaces of the screen 6 is further extended upwards on both sides of the lower end part of the fire prevention smoke prevention screen 6, and it is L-shaped. The handle 15 is formed by bending it into two. Although the handle 15 is provided at the center of the upper end surface of the seat plate 10, it may be provided at two locations on the left and right sides by sorting at the center.

このように構成されたエレベータ乗場の防火防煙装置の防火防煙スクリーン６においては、火災発生時に、図９に示すような全閉状態にある時は、スクリーン錘８が乗場床面５に接触し、気密性能および耐火性能を保持している。また、緊急の状態で、防火防煙スクリーン６を手動で開放する場合、スクリーン錘８の座板１０部を延長し、Ｌ字状に曲げられた取手１５を設けたので、手が掛け易くなり、スクリーン錘８を持ち上げ易くなって、避難性能が向上する。また、下側から錘を見た時には取手１５は見えない構成の為、意匠性が低下しない。   In the fire prevention and smoke prevention screen 6 of the elevator hall fire prevention and smoke prevention apparatus constructed as described above, the screen weight 8 contacts the landing floor 5 when a fire occurs and when it is in a fully closed state as shown in FIG. And keeps hermetic performance and fireproof performance. Further, when the fire and smoke screen 6 is manually opened in an emergency state, the seat plate 10 portion of the screen weight 8 is extended and the handle 15 bent in an L shape is provided. The screen weight 8 can be easily lifted, and the evacuation performance is improved. Moreover, since the handle 15 cannot be seen when the weight is viewed from the lower side, the design is not deteriorated.

実施の形態３．
図１１はこの発明の実施の形態３におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図、図１２及び図１３はスクリーン錘の構造を示す一部背面図である。
図中、実施の形態２と同一または相当部分は同一符号で示し、説明を省略する。
この実施の形態３は、実施の形態１、２と同様に、断面Ｕ字状の錘カバー１４を設けたものである。このＵ字状の錘カバー１４の乗場側の側面には上下方向の長穴（図示せず）が設けられ、この長穴を介して固定用ねじ１３で固定されるものである。したがって、Ｕ字状の錘カバー１４は、自重で降下できるように構成されている。そして、実施の形態３においては、防火防煙スクリーン６の下端部を間に挟んでスクリーン６の両側面に配置された座板１０の上端面の一部を更に上方に延長することにより延長部１６を設け、この延長部１６の中央部に取手用の手掛け穴１７を形成したものである。この延長部１６と手掛け穴１７は、防火防煙スクリーン６を挟んで互いに対向する座板１０の上端面の形成位置が重ならないようにずらせて設けられる。また、図１３に示すように、座板１０の上端面の中央部を更に上方に延長して延長部１６を設け、この延長部１６の中央部に取手用の手掛け穴１７を形成してもよい。 Embodiment 3 FIG.
FIG. 11 is a cross-sectional view of the main part showing a state in which the fire and smoke screen of the elevator hall fire and smoke prevention apparatus according to Embodiment 3 of the present invention is fully closed, and FIGS. 12 and 13 show the structure of the screen weight. It is a partial rear view.
In the figure, the same or corresponding parts as those of the second embodiment are denoted by the same reference numerals, and description thereof is omitted.
In the third embodiment, as in the first and second embodiments, a weight cover 14 having a U-shaped cross section is provided. A vertical hole (not shown) is provided on the side surface on the landing side of the U-shaped weight cover 14 and is fixed by a fixing screw 13 through the long hole. Therefore, the U-shaped weight cover 14 is configured to be able to descend by its own weight. And in Embodiment 3 , it extends by extending a part of the upper end surface of the seat board 10 arrange | positioned on both sides | surfaces of the screen 6 further on both sides of the lower end part of the fire prevention smoke prevention screen 6 in between. 16 and a handle hole 17 for a handle is formed in the center of the extension 16. The extension portion 16 and the handle hole 17 are provided so that the formation positions of the upper end surfaces of the seat plate 10 facing each other with the fire prevention smoke prevention screen 6 interposed therebetween are not overlapped. Further, as shown in FIG. 13, the center portion of the upper end surface of the seat plate 10 is further extended upward to provide an extension portion 16, and a handle hole 17 for a handle is formed in the center portion of the extension portion 16. Good.

このように構成されたエレベータ乗場の防火防煙装置の防火防煙スクリーン６においては、表面と裏面で取手位置をずらしたことにより、実施の形態２よりも取手部分でスクリーンが押しやすくなり、手が掛けやすく、スクリーン錘を持ち上げ易い為、避難性能が向上する。 In the fire prevention and smoke prevention screen 6 of the fire prevention and smoke prevention device of the elevator hall configured as described above, the screen is easier to push at the handle portion than in the second embodiment by shifting the handle position between the front surface and the back surface. Easier to apply and easy to lift the screen weight, improving evacuation performance.

実施の形態４．
図１４はこの発明の実施の形態４におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図、図１５は全閉状態にある防火防煙スクリーンが熱風等によりスクリーン錘が持ち上がった状態を示す要部の断面図である。
図中、実施の形態１と同一または相当部分は同一符号で示し、説明を省略する。
この実施の形態４においては、実施の形態１と同様に、断面Ｕ字状の錘カバー１４を設けたものである。このＵ字状の錘カバー１４の乗場側前面には上下方向の長穴（図示せず）が設けられ、この長穴を介して固定用ねじ１３で固定されるものである。したがって、Ｕ字状の錘カバー１４は、自重により降下できるように構成されている。そして、実施の形態４においては、防火防煙スクリーン６の下端部に設けられるスクリーン錘本体を、最下端部の少し上方に設けている。これにより、防火防煙スクリーン６の下端部をスクリーン錘本体の下面より突出させてスクリーン垂れ部６ａを設け、このスクリーン垂れ部６ａをＵ字状の錘カバー１４の内面に接触させている。 Embodiment 4 FIG.
FIG. 14 is a cross-sectional view of the main part showing a state in which the fire and smoke screen of the fire prevention and smoke prevention device for an elevator hall according to Embodiment 4 of the present invention is fully closed, and FIG. FIG. 4 is a cross-sectional view of a main part showing a state in which the screen weight is lifted by hot air or the like.
In the figure, the form 1 and the same or corresponding parts of the embodiment are denoted by the same reference numerals, and description thereof is omitted.
In the fourth embodiment, as in the first embodiment, a weight cover 14 having a U-shaped cross section is provided. The U-shaped weight cover 14 is provided with a vertical hole (not shown) on the front side on the landing side, and is fixed with a fixing screw 13 through the long hole. Therefore, the U-shaped weight cover 14 is configured to be lowered by its own weight. And in Embodiment 4 , the screen weight main body provided in the lower end part of the fire prevention smoke prevention screen 6 is provided a little above the lowest end part. As a result, the lower end portion of the fireproof and smokeproof screen 6 protrudes from the lower surface of the screen weight main body to provide the screen drooping portion 6a, and the screen drooping portion 6a is brought into contact with the inner surface of the U-shaped weight cover 14.

このように構成されたエレベータ乗場の防火防煙装置の防火防煙スクリーン６においては、火災発生時に、図１４に示すような全閉状態にある時は、スクリーン錘８が乗場床面５に接触し、気密性能および耐火性能を保持しているが、この実施の形態４ではスクリーン垂れ部６ａがＵ字状の錘カバー１４の内面に接触しているので、気密性能および耐火性能が更に向上する。また、この防火防煙スクリーン６の全閉状態で、例えば熱風等により、図１５に示すように、スクリーン錘８が持ち上げられたとしても、スクリーン錘８と乗場床面５との間の隙間を、自重により降下するＵ字状の塞ぎ板１４が閉鎖することになるとともに、スクリーン垂れ部６ａの下端部が降下したＵ字状の錘カバー１４の内面に追従して接触するので、エレベータ乗場の気密性能及び耐火性能が更に向上する。 In the fireproof and smokeproof screen 6 of the elevator hall fireproof and smokeproof device configured as described above, the screen weight 8 contacts the landing floor 5 when a fire occurs and when it is in a fully closed state as shown in FIG. Although the airtight performance and the fire resistance performance are maintained, the screen hanging portion 6a is in contact with the inner surface of the U-shaped weight cover 14 in the fourth embodiment, so that the airtight performance and the fire resistance performance are further improved. . In addition, even when the screen weight 8 is lifted by hot air or the like in the fully closed state of the fire / smoke / screen 6 as shown in FIG. 15 for example, a gap between the screen weight 8 and the landing floor 5 is formed. The U-shaped closing plate 14 that descends due to its own weight closes, and the lower end of the screen drooping portion 6a contacts the inner surface of the lowered U-shaped weight cover 14, so that the elevator hall The airtightness and fire resistance are further improved.

この発明の参考例におけるエレベータ乗場を示す斜視図である。It is a perspective view which shows the elevator hall in the reference example of this invention. この発明の参考例におけるエレベータ乗場の防火防煙装置の上部構造を示す断面図である。It is sectional drawing which shows the upper structure of the fire prevention smoke prevention apparatus of the elevator hall in the reference example of this invention. この発明の参考例におけるエレベータ乗場の防火防煙装置の要部構造を示す拡大断面図である。It is an expanded sectional view which shows the principal part structure of the fire prevention and smoke prevention apparatus of the elevator hall in the reference example of this invention. この発明の参考例におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state which the fire prevention smoke prevention screen of the fire prevention smoke prevention apparatus of the elevator hall in the reference example of this invention is fully closed. 全閉状態にある防火防煙スクリーンが熱風等によりスクリーン錘が持ち上がった状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state in which the screen weight was lifted by the hot air etc. in the fire prevention smoke screen in a fully closed state. この発明の実施の形態１におけるエレベータ乗場の防火防煙装置の要部構造を示す拡大断面図である。It is an expanded sectional view which shows the principal part structure of the fire prevention and smoke prevention apparatus of the elevator hall in Embodiment 1 of this invention. この発明の実施の形態１におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state which the fire prevention smoke prevention screen of the fire prevention smoke prevention apparatus of the elevator platform in Embodiment 1 of this invention has closed fully. 全閉状態にある防火防煙スクリーンが熱風等によりスクリーン錘が持ち上がった状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state in which the screen weight was lifted by the hot air etc. in the fire prevention smoke screen in a fully closed state. この発明の実施の形態２におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state which the fire prevention smoke prevention screen of the fire prevention smoke prevention apparatus of the elevator hall in Embodiment 2 of this invention has fully closed. この発明の実施の形態２におけるスクリーン錘の構造を示す一部背面図である。It is a partial rear view which shows the structure of the screen weight in Embodiment 2 of this invention. この発明の実施の形態３におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state which the fire prevention smoke prevention screen of the fire prevention smoke prevention apparatus of the elevator platform in Embodiment 3 of this invention has closed fully. この発明の実施の形態３におけるスクリーン錘の構造を示す一部背面図である。It is a partial rear view which shows the structure of the screen weight in Embodiment 3 of this invention. この発明の実施の形態３におけるスクリーン錘の他の構造例を示す一部背面図である。It is a partial rear view which shows the other structural example of the screen weight in Embodiment 3 of this invention. この発明の実施の形態４におけるエレベータ乗場の防火防煙装置の防火防煙スクリーンが全閉している状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state which the fire prevention smoke prevention screen of the fire prevention smoke prevention apparatus of the elevator hall in Embodiment 4 of this invention has closed fully. この発明の実施の形態４におけるエレベータ乗場の防火防煙装置の全閉状態にある防火防煙スクリーンが熱風等によりスクリーン錘が持ち上がった状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the state which the screen weight lifted by the hot air etc. in the fire prevention smoke prevention screen in the fully closed state of the fire prevention smoke prevention apparatus of the elevator hall in Embodiment 4 of this invention.

１ 乗場ドア装置
２ 乗場ドア
３ 乗場三方枠
３ａ 三方枠の縦枠
３ｂ 三方枠の幕板
３ｃ 三方枠の上枠
４ 防火防煙スクリーン装置
５ 乗場の床面
６ 防火防煙スクリーン
６ａ スクリーン垂れ部
７ スクリーン降下溝
８ スクリーン錘
９ 錘体
１０ 座板
１１ Ｌ字状の錘カバー
１２ 塞ぎ板
１３ 固定用ねじ
１４ Ｕ字状の錘カバー
１５ Ｌ字状の取手
１６ 延長部
１７ 手掛け穴 1 landing door device 2 landing door 3 landing three-sided frame 3a three-sided frame vertical frame 3b three-sided frame curtain plate 3c three-sided frame top frame 4 fireproof smoke-proof screen device 5 landing floor 6 fireproof smoke-proof screen 6a screen dripping part 7 Screen descent groove 8 Screen weight 9 Weight body 10 Seat plate 11 L-shaped weight cover 12 Closing plate 13 Fixing screw 14 U-shaped weight cover 15 L-shaped handle 16 Extension part 17 Hand hole

Claims (6)

防火防煙スクリーンの下端部にスクリーン錘が取り付けられ、火災発生時に、前記防火防煙スクリーンが降下して、エレベータ乗場ドア前面を閉鎖し防火区画を形成するエレベータ乗場の防火防煙装置において、
前記スクリーン錘は、
前記防火防煙スクリーンの下端部の昇降路側及び乗場側に設けられ、火災発生時に前記防火防煙スクリーンが降下して全閉状態にある時は、乗場床面に接触して気密性能および耐火性能を保持するスクリーン錘本体と、
前記スクリーン錘本体に対し上下方向にスライドできるように取り付けられ、熱風等により乗場床面に接触している前記スクリーン錘が持ち上げられた時に自重により降下して前記スクリーン錘本体と乗場床面との間の隙間を塞ぐ閉塞体とを備え、
前記閉塞体はスクリーン錘本体の昇降路側及び乗場側の面を覆うように設けられたＵ字状の錘カバーであり、該錘カバーの乗場側のみが前記スクリーン錘本体に対して上下方向にスライドできるように取り付けられ、かつ前記錘カバーの昇降路側が前記スクリーン錘本体の昇降路側の面に沿ってスライドし、前記スクリーン錘が持ち上げられた時に、前記錘カバーの昇降路側が、前記スクリーン錘本体の昇降路側の面と水平投影上、一部重なっていることを特徴とするエレベータ乗場の防火防煙装置。 A screen weight is attached to the lower end of the fire and smoke screen, and when the fire occurs, the fire and smoke screen descends and closes the front of the elevator hall door to form a fire prevention compartment.
The screen weight is
Provided on the hoistway side and the landing side at the lower end of the fire and smoke screen, and when the fire and smoke screen is in a fully closed state when a fire breaks out, it comes into contact with the floor of the landing and is airtight and fire resistant A screen weight body for holding
The screen weight body is attached so as to be slidable in the vertical direction. When the screen weight in contact with the landing floor surface is lifted by hot air or the like, the screen weight body is lowered by its own weight, and the screen weight body and the landing floor surface And a closing body that closes the gap between them ,
The closing body is a U-shaped weight cover provided so as to cover the hoistway side and the landing side surface of the screen weight main body, and only the landing side of the weight cover slides vertically with respect to the screen weight main body. The weight cover is mounted so that the hoistway side of the weight cover slides along the hoistway side surface of the screen weight main body, and when the screen weight is lifted, the hoistway side of the weight cover is moved to the screen weight main body. A fire prevention and smoke prevention device for an elevator hall characterized in that it partially overlaps with the surface of the hoistway side in horizontal projection . 防火防煙スクリーンの下端部を間に挟んでスクリーンの両側面に配置され、スクリーン錘の一部を構成する座板に、スクリーン錘本体より上方に延長し、Ｌ字状に折り曲げた取手部を形成したことを特徴とする請求項１のエレベータ乗場の防火防煙装置。   Placed on both sides of the screen with the lower end of the fire and smoke screen sandwiched between them, on the seat plate that constitutes a part of the screen weight, is extended upward from the screen weight body, and the handle portion bent into an L shape The fire prevention and smoke prevention device for an elevator hall according to claim 1, which is formed. 防火防煙スクリーンの下端部を間に挟んでスクリーンの両側面に配置され、スクリーン錘の一部を構成する座板に、この座板の上端面の一部を上方に延長することにより延長部を設け、この延長部の中央部に取手用の手掛け穴を形成したことを特徴とする請求項１のエレベータ乗場の防火防煙装置。   An extension by extending a part of the upper end surface of the seat plate upward to a seat plate that is disposed on both sides of the screen with the lower end portion of the fire and smoke screen sandwiched between them. A fire prevention and smoke prevention device for an elevator hall according to claim 1, wherein a handle hole for a handle is formed in the center of the extension. 延長部と取手用の手掛け穴は、防火防煙スクリーンを挟んで互いに対向する座板の上端面の形成位置が重ならないようにずらせて設けたことを特徴とする請求項３記載のエレベータ乗場の防火防煙装置。 The elevator hall according to claim 3, wherein the extension portion and the handle hole for the handle are provided so that the formation positions of the upper end surfaces of the seat plates facing each other with the fire and smoke screen sandwiched therebetween are not overlapped. Fire and smoke prevention equipment. 防火防煙スクリーンの下端部に設けられるスクリーン錘本体を、最下端部の少し上方に設けることにより、前記防火防煙スクリーンの下端部を前記スクリーン錘本体の下面より突出させてスクリーン垂れ部を設け、このスクリーン垂れ部をＵ字状の錘カバーの内面に接触させ、熱風等により乗場床面に接触している前記スクリーン錘が持ち上げられた時にも自重により降下した前記Ｕ字状の錘カバーの内面に追従して接触させることを特徴とする請求項１記載のエレベータ乗場の防火防煙装置。 The screen weight body provided at the lower end portion of the fire and smoke screen is provided slightly above the lower end portion, so that the lower end portion of the fire and smoke screen is projected from the lower surface of the screen weight body to provide a screen hanging portion. The U-shaped weight cover that is lowered by its own weight when the screen weight contacting the landing floor surface by hot air or the like is brought into contact with the inner surface of the U-shaped weight cover. 2. The fire prevention and smoke prevention device for an elevator hall according to claim 1 , wherein the fire prevention and smoke prevention device is brought into contact with the inner surface. 防火防煙スクリーンの下端部に設けられるスクリーン錘本体を、最下端部の少し上方に設けることにより、前記防火防煙スクリーンの下端部を前記スクリーン錘本体の下面より突出させてスクリーン垂れ部を設け、このスクリーン垂れ部をＵ字状の錘カバーの内面に接触させたことを特徴とする請求項１記載のエレベータ乗場の防火防煙装置。The screen weight body provided at the lower end portion of the fire and smoke screen is provided slightly above the lower end portion, so that the lower end portion of the fire and smoke screen is projected from the lower surface of the screen weight body to provide a screen hanging portion. 2. The fire prevention and smoke prevention device for an elevator hall according to claim 1, wherein the drooping portion of the screen is brought into contact with the inner surface of the U-shaped weight cover.
JP2004010829A 2004-01-19 2004-01-19 Fire and smoke prevention equipment at the elevator hall Expired - Fee Related JP4391249B2 (en)

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