JP2020152560A - Ventilator with ventilation function for inside of elevator car - Google Patents

Ventilator with ventilation function for inside of elevator car Download PDF

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JP2020152560A
JP2020152560A JP2019054800A JP2019054800A JP2020152560A JP 2020152560 A JP2020152560 A JP 2020152560A JP 2019054800 A JP2019054800 A JP 2019054800A JP 2019054800 A JP2019054800 A JP 2019054800A JP 2020152560 A JP2020152560 A JP 2020152560A
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air passage
car
housing
fan
elevator
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JP7279448B2 (en
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怜介 佐藤
Ryosuke Sato
怜介 佐藤
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Mitsubishi Electric Building Solutions Corp
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Mitsubishi Electric Building Techno Service Co Ltd
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Abstract

To provide an elevator ventilator that can reduce the amount of dust entering the interior of a car.SOLUTION: An elevator ventilator 10 comprises: a housing 12 that forms an air passage that connects the outside and inside of an elevator car 6; a fan 13 provided in the air passage of the housing 12 and sucking air from the outside of the car 6 and sends the air to the inside of the car 6; a charging body 15 provided on the outer side of the car 6 with respect to the fan 13 in the air passage of the housing 12 and charging dust contained in the air sucked into the fan; and a collecting body 16 provided between the fan 13 and the charging body 15 in the air passage of the housing 12 and collecting the dust charged by the charging body 15.SELECTED DRAWING: Figure 2

Description

この発明は、エレベーターのかごの内部の換気機能を備えた換気装置に関する。 The present invention relates to a ventilation device having a ventilation function inside an elevator car.

特許文献１は、エレベーターの換気装置を開示する。当該換気装置によれば、かごの内部の騒音を減らし得る。 Patent Document 1 discloses an elevator ventilation device. According to the ventilation device, the noise inside the car can be reduced.

特開平７−３１５７２８公報JP-A-7-315728

しかしながら、特許文献１に記載の換気装置は、かごの外部から空気とともに塵埃を吸い込む。当該塵埃は、かごの内部に流入する。 However, the ventilation device described in Patent Document 1 sucks dust together with air from the outside of the car. The dust flows into the inside of the car.

この発明は、上述の課題を解決するためになされた。この発明の目的は、かごの内部に流入する塵埃の量を減らすことができるエレベーターシステムを提供することである。 The present invention has been made to solve the above-mentioned problems. An object of the present invention is to provide an elevator system capable of reducing the amount of dust flowing into the car.

この発明に係るエレベーターの換気装置は、エレベーターのかごの外部と内部とをつなぐ風路を形成した筐体と、前記筐体の風路に設けられ、前記かごの外部から空気を吸い込んで、当該空気を前記かごの内部に送るファンと、前記筐体の風路において前記ファンよりも前記かごの外部の側に設けられ、前記ファンに吸い込まれた空気中に含まれる塵埃を帯電する帯電体と、前記筐体の風路において前記ファンと前記帯電体との間に設けられ、前記帯電体により帯電された塵埃を捕集する捕集体と、を備えた。 The ventilation device of the elevator according to the present invention is provided in a housing forming an air passage connecting the outside and the inside of the car of the elevator and the air passage of the housing, and sucks air from the outside of the car to obtain the air passage. A fan that sends air to the inside of the car, and a charged body that is provided on the outer side of the car from the fan in the air passage of the housing and charges dust contained in the air sucked into the fan. Provided with a collector provided between the fan and the charged body in the air passage of the housing and collecting dust charged by the charged body.

この発明によれば、捕集体は、帯電体により帯電された塵埃を捕集する。このため、かごの内部に流入する塵埃の量を減らすことができる。 According to the present invention, the collector collects dust charged by the charged body. Therefore, the amount of dust flowing into the car can be reduced.

実施の形態１におけるエレベーターの換気装置が適用されるエレベーターの構成図である。It is a block diagram of the elevator to which the ventilation system of the elevator according to Embodiment 1 is applied. 実施の形態１におけるエレベーターの換気装置の縦断面図である。It is a vertical sectional view of the ventilation system of an elevator in Embodiment 1. FIG. 実施の形態２におけるエレベーターの換気装置の縦断面図である。It is a vertical cross-sectional view of the ventilation system of the elevator in Embodiment 2. 実施の形態３におけるエレベーターの換気装置の横断面図である。It is sectional drawing of the ventilation system of the elevator in Embodiment 3. FIG.

この発明を実施するための形態について添付の図面に従って説明する。なお、各図中、同一または相当する部分には同一の符号が付される。当該部分の重複説明は適宜に簡略化ないし省略される。 A mode for carrying out the present invention will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are designated by the same reference numerals. The duplicate description of the relevant part will be simplified or omitted as appropriate.

実施の形態１．
図１は実施の形態１におけるエレベーターの換気装置が適用されるエレベーターの構成図である。 Embodiment 1.
FIG. 1 is a configuration diagram of an elevator to which the ventilation device of the elevator according to the first embodiment is applied.

図１のエレベーターについて、昇降路１は、図示されない建築物の各階を貫く。機械室２は、昇降路１の直上に設けられる。複数の乗場３の各々は、建築物の各階に設けられる。複数の乗場３の各々は、昇降路１に対向する。 For the elevator of FIG. 1, the hoistway 1 penetrates each floor of a building (not shown). The machine room 2 is provided directly above the hoistway 1. Each of the plurality of landings 3 is provided on each floor of the building. Each of the plurality of landings 3 faces the hoistway 1.

巻上機４は、機械室２に設けられる。主ロープ５は、巻上機４に巻き掛けられる。 The hoisting machine 4 is provided in the machine room 2. The main rope 5 is wound around the hoisting machine 4.

かご６は、昇降路１の内部に設けられる。かご６は、主ロープ５の一側に支持される。釣合おもり７は、昇降路１の内部に設けられる。釣合おもり７は、主ロープ５の他側に支持される。 The car 6 is provided inside the hoistway 1. The car 6 is supported on one side of the main rope 5. The balance weight 7 is provided inside the hoistway 1. The balance weight 7 is supported on the other side of the main rope 5.

複数の乗場ドア８の各々は、複数の乗場３の各々の出入口に設けられる。かごドア９は、かご６の出入口に設けられる。換気装置１０は、かご６の天井に設けられる。 Each of the plurality of landing doors 8 is provided at each entrance / exit of the plurality of landings 3. The car door 9 is provided at the doorway of the car 6. The ventilation device 10 is provided on the ceiling of the car 6.

制御装置１１は、機械室２に設けられる。制御装置１１は、エレベーターを全体的に制御し得るように設けられる。 The control device 11 is provided in the machine room 2. The control device 11 is provided so as to be able to control the elevator as a whole.

次に、図２を用いて、換気装置１０を説明する。
図２は実施の形態１におけるエレベーターの換気装置の縦断面図である。 Next, the ventilation device 10 will be described with reference to FIG.
FIG. 2 is a vertical sectional view of the ventilation device of the elevator according to the first embodiment.

図２に示されるように、換気装置１０は、筐体１２とファン１３とフィルタ体１４と帯電体１５と捕集体１６と報知体１７と蓋体１８を備える。 As shown in FIG. 2, the ventilation device 10 includes a housing 12, a fan 13, a filter body 14, a charged body 15, a collecting body 16, a notification body 17, and a lid body 18.

例えば、筐体１２は、金属で形成される。筐体１２は、かご６の外部と内部とをつなぐ風路を形成する。筐体１２の風路において、かご６の外部の側の開口部は、水平方向に開口する。ファン１３は、筐体１２の風路に設けられる。ファン１３は、かご６の外部から空気を吸い込んでかご６の内部に送り得るように設けられる。 For example, the housing 12 is made of metal. The housing 12 forms an air passage that connects the outside and the inside of the car 6. In the air passage of the housing 12, the opening on the outer side of the car 6 opens in the horizontal direction. The fan 13 is provided in the air passage of the housing 12. The fan 13 is provided so that air can be sucked from the outside of the car 6 and sent to the inside of the car 6.

フィルタ体１４は、筐体１２の風路におけるかご６の外部の側の開口部に設けられる。フィルタ体１４は、ファン１３に吸い込まれた空気中に含まれる比較的大きな塵埃を捕集し得るように設けられる。帯電体１５は、筐体１２の風路においてファン１３よりもかご６の外部の側に着脱自在に設けられる。帯電体１５は、フィルタ体１４を通過した空気中に含まれる比較的小さな塵埃を帯電し得るように設けられる。捕集体１６は、筐体１２の風路においてファン１３と帯電体１５との間に着脱自在に設けられる。捕集体１６は、帯電体１５により帯電された比較的小さな塵埃を捕集し得るように設けられる。 The filter body 14 is provided in the opening on the outer side of the car 6 in the air passage of the housing 12. The filter body 14 is provided so as to be able to collect relatively large dust contained in the air sucked into the fan 13. The charged body 15 is detachably provided on the outer side of the car 6 with respect to the fan 13 in the air passage of the housing 12. The charged body 15 is provided so as to be able to charge relatively small dust contained in the air that has passed through the filter body 14. The collector 16 is detachably provided between the fan 13 and the charged body 15 in the air passage of the housing 12. The collector 16 is provided so as to be able to collect relatively small dust charged by the charged body 15.

例えば、報知体１７は、筐体１２の上面に設けられる。報知体１７は、捕集体１６に捕集された比較的小さな塵埃の量が予め設定された量よりも多くなった場合にその旨を示すことを発光等により報知し得るように設けられる。蓋体１８は、筐体１２の外部からファン１３と捕集体１６との間に挿入し得るように設けられる。蓋体１８は、ファン１３と捕集体１６との間に挿入された際にファン１３と帯電体１５と捕集体１６との動作を停止させ得るように設けられる。 For example, the notification body 17 is provided on the upper surface of the housing 12. The notifying body 17 is provided so as to be able to notify by light emission or the like that when the amount of relatively small dust collected by the collecting body 16 becomes larger than a preset amount. The lid 18 is provided so that it can be inserted between the fan 13 and the collector 16 from the outside of the housing 12. The lid 18 is provided so that the operation of the fan 13, the charged body 15, and the collector 16 can be stopped when the lid 18 is inserted between the fan 13 and the collector 16.

以上で説明した実施の形態１によれば、捕集体１６は、帯電体１５により帯電された塵埃を捕集する。このため、かご６の内部に流入する塵埃の量を減らすことができる。その結果、かご６の内部の意匠面が塵埃で汚れることを抑制できる。 According to the first embodiment described above, the collector 16 collects the dust charged by the charged body 15. Therefore, the amount of dust flowing into the car 6 can be reduced. As a result, it is possible to prevent the design surface inside the car 6 from being contaminated with dust.

また、筐体１２の風路において、かご６の外部の側の開口部は、水平方向に開口する。このため、かご６が昇降する際に筐体１２の内部に空気が勢いよく流入することを抑制できる。 Further, in the air passage of the housing 12, the opening on the outer side of the car 6 opens in the horizontal direction. Therefore, when the car 6 moves up and down, it is possible to suppress the vigorous inflow of air into the housing 12.

また、報知体１７は、捕集体１６に捕集された塵埃の量が予め設定された量よりも多くなったことを報知する。このため、捕集体１６の清掃のタイミングを作業員に知らせることができる。 Further, the notifying body 17 notifies that the amount of dust collected by the collecting body 16 has become larger than the preset amount. Therefore, it is possible to inform the worker of the timing of cleaning the collector 16.

実施の形態２．
図３は実施の形態２におけるエレベーターの換気装置の縦断面図である。なお、実施の形態１の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。 Embodiment 2.
FIG. 3 is a vertical sectional view of the ventilation device of the elevator according to the second embodiment. The same or corresponding parts as those of the first embodiment are designated by the same reference numerals. The explanation of the relevant part is omitted.

実施の形態２において、筐体１２は、上部風路１２ａと折り返し風路１２ｂと下部風路１２ｃとを形成する。 In the second embodiment, the housing 12 forms an upper air passage 12a, a folded air passage 12b, and a lower air passage 12c.

上部風路１２ａは、かご６の外部から水平方向に延びる。折り返し風路１２ｂは、上部風路１２ａから下方に折り返される。下部風路１２ｃは、折り返し風路１２ｂから上部風路１２ａの下方に延びてかご６の内部につながる。 The upper air passage 12a extends horizontally from the outside of the car 6. The folded air passage 12b is folded downward from the upper air passage 12a. The lower air passage 12c extends from the turn-back air passage 12b below the upper air passage 12a and connects to the inside of the car 6.

ファン１３は、下部風路１２ｃに設けられる。帯電体１５は、下部風路１２ｃにおいてファン１３よりも折り返し風路１２ｂの側に設けられる。捕集体１６は、下部風路１２ｃにおいてファン１３と帯電体１５との間に設けられる。 The fan 13 is provided in the lower air passage 12c. The charged body 15 is provided in the lower air passage 12c on the side of the folded air passage 12b with respect to the fan 13. The collector 16 is provided between the fan 13 and the charged body 15 in the lower air passage 12c.

以上で説明した実施の形態２によれば、筐体１２は、下方に折り返されることにより風路を形成する。このため、かご６の天井において換気装置１０の設置面積を小さくすることができる。 According to the second embodiment described above, the housing 12 is folded downward to form an air passage. Therefore, the installation area of the ventilation device 10 can be reduced on the ceiling of the car 6.

また、帯電体１５と捕集体１６とは、下部風路１２ｃに設けられる。このため、かご６の一対のガイドレールおよび釣合おもり７の一対のガイドレール等からの油が帯電体１５と捕集体１６とに到達することをより確実に抑制できる。 Further, the charged body 15 and the collecting body 16 are provided in the lower air passage 12c. Therefore, it is possible to more reliably prevent the oil from the pair of guide rails of the car 6 and the pair of guide rails of the balance weight 7 from reaching the charged body 15 and the collecting body 16.

なお、上部風路１２ａと下部風路１２ｃとの境界で筐体１２を分割できるようにしてもよい。この場合、上部風路１２ａを下部風路１２ｃから取り外した際に帯電体１５と捕集体１６とが上方に露出するようにすれば、帯電体１５と捕集体１６とを容易に清掃することができる。 The housing 12 may be divided at the boundary between the upper air passage 12a and the lower air passage 12c. In this case, if the charged body 15 and the collecting body 16 are exposed upward when the upper air passage 12a is removed from the lower air passage 12c, the charged body 15 and the collecting body 16 can be easily cleaned. it can.

実施の形態３．
図４は実施の形態３におけるエレベーターの換気装置の横断面図である。なお、実施の形態１の部分と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。 Embodiment 3.
FIG. 4 is a cross-sectional view of the ventilation device of the elevator according to the third embodiment. The same or corresponding parts as those of the first embodiment are designated by the same reference numerals. The explanation of the relevant part is omitted.

実施の形態３において、筐体１２は、第１風路１２ｄと折り返し風路１２ｅと第２風路１２ｆとを形成する。 In the third embodiment, the housing 12 forms the first air passage 12d, the folded air passage 12e, and the second air passage 12f.

第１風路１２ｄは、かご６の外部から水平方向に延びる。折り返し風路１２ｅは、上部風路１２ａから横方向に折り返す。第２風路１２ｆは、折り返し風路１２ｅから第１風路１２ｄに沿って延びてかご６の内部につながる。 The first air passage 12d extends horizontally from the outside of the car 6. The folded air passage 12e is folded back laterally from the upper air passage 12a. The second air passage 12f extends from the turn-back air passage 12e along the first air passage 12d and connects to the inside of the car 6.

ファン１３は、第２風路１２ｆに設けられる。帯電体１５は、第２風路１２ｆにおいてファン１３よりも折り返し風路１２ｅの側に設けられる。捕集体１６は、第２風路１２ｆにおいてファン１３と帯電体１５との間に設けられる。 The fan 13 is provided in the second air passage 12f. The charged body 15 is provided on the side of the folded air passage 12e with respect to the fan 13 in the second air passage 12f. The collector 16 is provided between the fan 13 and the charged body 15 in the second air passage 12f.

以上で説明した実施の形態３によれば、筐体１２は、横方向に折り返されることにより風路を形成する。このため、かご６の天井において換気装置１０の高さを低くすることができる。 According to the third embodiment described above, the housing 12 is folded back in the lateral direction to form an air passage. Therefore, the height of the ventilation device 10 can be lowered on the ceiling of the car 6.

また、帯電体１５と捕集体１６とは、第２風路１２ｆに設けられる。このため、かご６の一対のガイドレールおよび釣合おもり７の一対のガイドレール等からの油が帯電体１５と捕集体１６とに到達することをより確実に抑制できる。 Further, the charged body 15 and the collecting body 16 are provided in the second air passage 12f. Therefore, it is possible to more reliably prevent the oil from the pair of guide rails of the car 6 and the pair of guide rails of the balance weight 7 from reaching the charged body 15 and the collecting body 16.

なお、第２風路１２ｆの上面に蓋体１８を設けてもよい。この場合、蓋体１８を開けることで帯電体１５と捕集体１６とが上方に露出するようにすれば、帯電体１５と捕集体１６とを容易に清掃することができる。 The lid 18 may be provided on the upper surface of the second air passage 12f. In this case, if the charged body 15 and the collector 16 are exposed upward by opening the lid 18, the charged body 15 and the collector 16 can be easily cleaned.

なお、実施の形態１から実施の形態３の換気装置１０の筐体１２の風路において、かご６の外部の側の開口部をかご６の一対のガイドレールおよび釣合おもり７の一対のガイドレールに向かないようにすればよい。例えば、かご６の外部の側の開口部を釣合おもり７の一対のガイドレールの間に向くようにすればよい。この場合、ガイドレールからの油が筐体１２の風路に進入することをより確実に抑制できる。 In the air passage of the housing 12 of the ventilation device 10 of the first to third embodiments, the opening on the outer side of the car 6 is a pair of guide rails of the car 6 and a pair of guides of the balance weight 7. It should not face the rail. For example, the opening on the outer side of the car 6 may be oriented between the pair of guide rails of the balancing weight 7. In this case, it is possible to more reliably prevent the oil from the guide rail from entering the air passage of the housing 12.

また、実施の形態１から実施の形態３の換気装置１０の筐体１２において、掃除機のノズルの差し込み部を集塵体の付近に形成してもよい。この場合、掃除機のノズルが差し込み部に差し込まれた際にファン１３と帯電体１５と集塵体との動作が停止するようにすれば、安全かつ効率的に集塵体を清掃することができる。 Further, in the housing 12 of the ventilation device 10 of the first to third embodiments, the insertion portion of the nozzle of the vacuum cleaner may be formed in the vicinity of the dust collector. In this case, if the operation of the fan 13, the charged body 15, and the dust collector is stopped when the nozzle of the vacuum cleaner is inserted into the insertion portion, the dust collector can be cleaned safely and efficiently. it can.

また、実施の形態１から実施の形態３の換気装置１０において、ファン１３の動作を停止した際に帯電体１５と集塵体との動作も停止するようにしてもよい。この場合、冬場等においてファン１３を停止した場合に帯電体１５と集塵体とが無用に動作することを抑制できる。 Further, in the ventilation device 10 of the first to third embodiments, the operation of the charged body 15 and the dust collector may be stopped when the operation of the fan 13 is stopped. In this case, it is possible to prevent the charged body 15 and the dust collector from operating unnecessarily when the fan 13 is stopped in winter or the like.

１ 昇降路、 ２ 機械室、 ３ 乗場、 ４ 巻上機、 ５ 主ロープ、 ６ かご、 ７ 釣合おもり、 ８ 乗場ドア、 ９ かごドア、 １０ 換気装置、 １１ 制御装置、 １２ 筐体、 １２ａ 上部風路、 １２ｂ 折り返し風路、 １２ｃ 下部風路、 １２ｄ 第１風路、 １２ｅ 折り返し風路、 １２ｆ 第２風路、 １３ ファン、 １４ フィルタ体、 １５ 帯電体、 １６ 捕集体、 １７ 報知体、 １８ 蓋体 1 hoistway, 2 machine room, 3 landing, 4 hoisting machine, 5 main rope, 6 car, 7 balanced weight, 8 landing door, 9 car door, 10 ventilation system, 11 control device, 12 housing, 12a upper part Air passage, 12b turn-back air passage, 12c lower air passage, 12d first air passage, 12e turn-back air passage, 12f second air passage, 13 fan, 14 filter body, 15 charged body, 16 collector, 17 alarm, 18 Lid

Claims (5)

エレベーターのかごの外部と内部とをつなぐ風路を形成した筐体と、
前記筐体の風路に設けられ、前記かごの外部から空気を吸い込んで、当該空気を前記かごの内部に送るファンと、
前記筐体の風路において前記ファンよりも前記かごの外部の側に設けられ、前記ファンに吸い込まれた空気中に含まれる塵埃を帯電する帯電体と、
前記筐体の風路において前記ファンと前記帯電体との間に設けられ、前記帯電体により帯電された塵埃を捕集する捕集体と、
を備えたエレベーターの換気装置。 A housing that forms an air passage that connects the outside and inside of the elevator car,
A fan provided in the air passage of the housing, which sucks air from the outside of the car and sends the air to the inside of the car.
A charged body provided on the outer side of the car with respect to the fan in the air passage of the housing and charging dust contained in the air sucked into the fan.
A collecting body provided between the fan and the charged body in the air passage of the housing and collecting dust charged by the charged body, and a collecting body.
Elevator ventilation system equipped with. 前記筐体は、風路における前記かごの外部の側の開口部が水平方向に開口するように設けられた請求項１に記載のエレベーターの換気装置。 The ventilation device for an elevator according to claim 1, wherein the housing is provided so that an opening on the outer side of the car in the air passage opens in the horizontal direction. 前記筐体は、前記かごの外部から水平方向に延びる上部風路と前記上部風路から下方に折り返す折り返し風路と前記折り返し風路から前記上部風路の下方に延びて前記かごの内部につながる下部風路とを有し、
前記ファンは、前記下部風路に設けられ、
前記帯電体は、前記下部風路に設けられ、
前記捕集体は、前記下部風路において前記ファンと前記帯電体との間に設けられた請求項２に記載のエレベーターの換気装置。 The housing extends horizontally from the outside of the car to an upper air passage, a folded air passage that folds downward from the upper air passage, and extends below the upper air passage from the folded air passage and connects to the inside of the car. Has a lower air passage and
The fan is provided in the lower air passage and is provided.
The charged body is provided in the lower air passage and is provided.
The elevator ventilation device according to claim 2, wherein the collector is provided between the fan and the charged body in the lower air passage. 前記筐体は、前記かごの外部から水平方向に延びる第１風路と前記第１風路から横方向に折り返す折り返し風路と前記折り返し風路から前記第１風路に沿って延びてかごの内部につながる第２風路とを有し、
前記ファンは、前記第２風路に設けられ、
前記帯電体は、前記第２風路に設けられ、
前記捕集体は、前記第２風路において前記帯電体よりも前記折り返し風路の側に設けられた請求項２に記載のエレベーターの換気装置。 The housing includes a first air passage that extends horizontally from the outside of the car, a folded air passage that folds laterally from the first air passage, and a folded air passage that extends along the first air passage from the folded air passage. It has a second air passage that connects to the inside,
The fan is provided in the second air passage and is provided.
The charged body is provided in the second air passage and is provided.
The ventilation device for an elevator according to claim 2, wherein the collector is provided on the side of the folded air passage with respect to the charged body in the second air passage. 前記筐体の上面に設けられ、捕集体に捕集された塵埃の量が予め設定された量よりも多くなったことを報知する報知体、
を備えた請求項１から請求項４のいずれか一項に記載のエレベーターの換気装置。 A notification body provided on the upper surface of the housing and notifying that the amount of dust collected by the collecting body has become larger than a preset amount.
The elevator ventilation device according to any one of claims 1 to 4, further comprising.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939594B1 (en) * 1970-11-11 1974-10-26
JPS49148648U (en) * 1973-04-24 1974-12-23
JPH06247669A (en) * 1993-02-24 1994-09-06 Toshiba Corp Ventilating device with silencing function for elevator car
JPH07108192A (en) * 1993-10-13 1995-04-25 Midori Anzen Co Ltd Diagnosing and detecting device of electrostatic precipitator
JP2000219460A (en) * 1999-02-01 2000-08-08 Hitachi Building Systems Co Ltd Air conditioner for elevator
JP2002020061A (en) * 2000-07-10 2002-01-23 Mitsubishi Electric Corp Elevator ventilator
JP2010063947A (en) * 2008-09-08 2010-03-25 Daikin Ind Ltd Air cleaner
JP2018194188A (en) * 2017-05-12 2018-12-06 三菱電機株式会社 Ventilation device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939594B1 (en) * 1970-11-11 1974-10-26
JPS49148648U (en) * 1973-04-24 1974-12-23
JPH06247669A (en) * 1993-02-24 1994-09-06 Toshiba Corp Ventilating device with silencing function for elevator car
JPH07108192A (en) * 1993-10-13 1995-04-25 Midori Anzen Co Ltd Diagnosing and detecting device of electrostatic precipitator
JP2000219460A (en) * 1999-02-01 2000-08-08 Hitachi Building Systems Co Ltd Air conditioner for elevator
JP2002020061A (en) * 2000-07-10 2002-01-23 Mitsubishi Electric Corp Elevator ventilator
JP2010063947A (en) * 2008-09-08 2010-03-25 Daikin Ind Ltd Air cleaner
JP2018194188A (en) * 2017-05-12 2018-12-06 三菱電機株式会社 Ventilation device

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